Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Pull SCSI target updates from Nicholas Bellinger:
"It's been a busy development cycle for target-core in a number of
different areas.
The fabric API usage for se_node_acl allocation is now within
target-core code, dropping the external API callers for all fabric
drivers tree-wide.
There is a new conversion to RCU hlists for se_node_acl and
se_portal_group LUN mappings, that turns fast-past LUN lookup into a
completely lockless code-path. It also removes the original
hard-coded limitation of 256 LUNs per fabric endpoint.
The configfs attributes for backends can now be shared between core
and driver code, allowing existing drivers to use common code while
still allowing flexibility for new backend provided attributes.
The highlights include:
- Merge sbc_verify_dif_* into common code (sagi)
- Remove iscsi-target support for obsolete IFMarker/OFMarker
(Christophe Vu-Brugier)
- Add bidi support in target/user backend (ilias + vangelis + agover)
- Move se_node_acl allocation into target-core code (hch)
- Add crc_t10dif_update common helper (akinobu + mkp)
- Handle target-core odd SGL mapping for data transfer memory
(akinobu)
- Move transport ID handling into target-core (hch)
- Move task tag into struct se_cmd + support 64-bit tags (bart)
- Convert se_node_acl->device_list[] to RCU hlist (nab + hch +
paulmck)
- Convert se_portal_group->tpg_lun_list[] to RCU hlist (nab + hch +
paulmck)
- Simplify target backend driver registration (hch)
- Consolidate + simplify target backend attribute implementations
(hch + nab)
- Subsume se_port + t10_alua_tg_pt_gp_member into se_lun (hch)
- Drop lun_sep_lock for se_lun->lun_se_dev RCU usage (hch + nab)
- Drop unnecessary core_tpg_register TFO parameter (nab)
- Use 64-bit LUNs tree-wide (hannes)
- Drop left-over TARGET_MAX_LUNS_PER_TRANSPORT limit (hannes)"
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (76 commits)
target: Bump core version to v5.0
target: remove target_core_configfs.h
target: remove unused TARGET_CORE_CONFIG_ROOT define
target: consolidate version defines
target: implement WRITE_SAME with UNMAP bit using ->execute_unmap
target: simplify UNMAP handling
target: replace se_cmd->execute_rw with a protocol_data field
target/user: Fix inconsistent kmap_atomic/kunmap_atomic
target: Send UA when changing LUN inventory
target: Send UA upon LUN RESET tmr completion
target: Send UA on ALUA target port group change
target: Convert se_lun->lun_deve_lock to normal spinlock
target: use 'se_dev_entry' when allocating UAs
target: Remove 'ua_nacl' pointer from se_ua structure
target_core_alua: Correct UA handling when switching states
xen-scsiback: Fix compile warning for 64-bit LUN
target: Remove TARGET_MAX_LUNS_PER_TRANSPORT
target: use 64-bit LUNs
target: Drop duplicate + unused se_dev_check_wce
target: Drop unnecessary core_tpg_register TFO parameter
...
diff --git a/Documentation/target/tcm_mod_builder.py b/Documentation/target/tcm_mod_builder.py
index 6085e1f..949de19 100755
--- a/Documentation/target/tcm_mod_builder.py
+++ b/Documentation/target/tcm_mod_builder.py
@@ -50,15 +50,6 @@
buf = "#define " + fabric_mod_name.upper() + "_VERSION \"v0.1\"\n"
buf += "#define " + fabric_mod_name.upper() + "_NAMELEN 32\n"
buf += "\n"
- buf += "struct " + fabric_mod_name + "_nacl {\n"
- buf += " /* Binary World Wide unique Port Name for FC Initiator Nport */\n"
- buf += " u64 nport_wwpn;\n"
- buf += " /* ASCII formatted WWPN for FC Initiator Nport */\n"
- buf += " char nport_name[" + fabric_mod_name.upper() + "_NAMELEN];\n"
- buf += " /* Returned by " + fabric_mod_name + "_make_nodeacl() */\n"
- buf += " struct se_node_acl se_node_acl;\n"
- buf += "};\n"
- buf += "\n"
buf += "struct " + fabric_mod_name + "_tpg {\n"
buf += " /* FC lport target portal group tag for TCM */\n"
buf += " u16 lport_tpgt;\n"
@@ -69,8 +60,6 @@
buf += "};\n"
buf += "\n"
buf += "struct " + fabric_mod_name + "_lport {\n"
- buf += " /* SCSI protocol the lport is providing */\n"
- buf += " u8 lport_proto_id;\n"
buf += " /* Binary World Wide unique Port Name for FC Target Lport */\n"
buf += " u64 lport_wwpn;\n"
buf += " /* ASCII formatted WWPN for FC Target Lport */\n"
@@ -105,14 +94,6 @@
buf = "#define " + fabric_mod_name.upper() + "_VERSION \"v0.1\"\n"
buf += "#define " + fabric_mod_name.upper() + "_NAMELEN 32\n"
buf += "\n"
- buf += "struct " + fabric_mod_name + "_nacl {\n"
- buf += " /* Binary World Wide unique Port Name for SAS Initiator port */\n"
- buf += " u64 iport_wwpn;\n"
- buf += " /* ASCII formatted WWPN for Sas Initiator port */\n"
- buf += " char iport_name[" + fabric_mod_name.upper() + "_NAMELEN];\n"
- buf += " /* Returned by " + fabric_mod_name + "_make_nodeacl() */\n"
- buf += " struct se_node_acl se_node_acl;\n"
- buf += "};\n\n"
buf += "struct " + fabric_mod_name + "_tpg {\n"
buf += " /* SAS port target portal group tag for TCM */\n"
buf += " u16 tport_tpgt;\n"
@@ -122,8 +103,6 @@
buf += " struct se_portal_group se_tpg;\n"
buf += "};\n\n"
buf += "struct " + fabric_mod_name + "_tport {\n"
- buf += " /* SCSI protocol the tport is providing */\n"
- buf += " u8 tport_proto_id;\n"
buf += " /* Binary World Wide unique Port Name for SAS Target port */\n"
buf += " u64 tport_wwpn;\n"
buf += " /* ASCII formatted WWPN for SAS Target port */\n"
@@ -158,12 +137,6 @@
buf = "#define " + fabric_mod_name.upper() + "_VERSION \"v0.1\"\n"
buf += "#define " + fabric_mod_name.upper() + "_NAMELEN 32\n"
buf += "\n"
- buf += "struct " + fabric_mod_name + "_nacl {\n"
- buf += " /* ASCII formatted InitiatorName */\n"
- buf += " char iport_name[" + fabric_mod_name.upper() + "_NAMELEN];\n"
- buf += " /* Returned by " + fabric_mod_name + "_make_nodeacl() */\n"
- buf += " struct se_node_acl se_node_acl;\n"
- buf += "};\n\n"
buf += "struct " + fabric_mod_name + "_tpg {\n"
buf += " /* iSCSI target portal group tag for TCM */\n"
buf += " u16 tport_tpgt;\n"
@@ -173,8 +146,6 @@
buf += " struct se_portal_group se_tpg;\n"
buf += "};\n\n"
buf += "struct " + fabric_mod_name + "_tport {\n"
- buf += " /* SCSI protocol the tport is providing */\n"
- buf += " u8 tport_proto_id;\n"
buf += " /* ASCII formatted TargetName for IQN */\n"
buf += " char tport_name[" + fabric_mod_name.upper() + "_NAMELEN];\n"
buf += " /* Returned by " + fabric_mod_name + "_make_tport() */\n"
@@ -232,61 +203,12 @@
buf += "#include <target/target_core_base.h>\n"
buf += "#include <target/target_core_fabric.h>\n"
buf += "#include <target/target_core_fabric_configfs.h>\n"
- buf += "#include <target/target_core_configfs.h>\n"
buf += "#include <target/configfs_macros.h>\n\n"
buf += "#include \"" + fabric_mod_name + "_base.h\"\n"
buf += "#include \"" + fabric_mod_name + "_fabric.h\"\n\n"
buf += "static const struct target_core_fabric_ops " + fabric_mod_name + "_ops;\n\n"
- buf += "static struct se_node_acl *" + fabric_mod_name + "_make_nodeacl(\n"
- buf += " struct se_portal_group *se_tpg,\n"
- buf += " struct config_group *group,\n"
- buf += " const char *name)\n"
- buf += "{\n"
- buf += " struct se_node_acl *se_nacl, *se_nacl_new;\n"
- buf += " struct " + fabric_mod_name + "_nacl *nacl;\n"
-
- if proto_ident == "FC" or proto_ident == "SAS":
- buf += " u64 wwpn = 0;\n"
-
- buf += " u32 nexus_depth;\n\n"
- buf += " /* " + fabric_mod_name + "_parse_wwn(name, &wwpn, 1) < 0)\n"
- buf += " return ERR_PTR(-EINVAL); */\n"
- buf += " se_nacl_new = " + fabric_mod_name + "_alloc_fabric_acl(se_tpg);\n"
- buf += " if (!se_nacl_new)\n"
- buf += " return ERR_PTR(-ENOMEM);\n"
- buf += "//#warning FIXME: Hardcoded nexus depth in " + fabric_mod_name + "_make_nodeacl()\n"
- buf += " nexus_depth = 1;\n"
- buf += " /*\n"
- buf += " * se_nacl_new may be released by core_tpg_add_initiator_node_acl()\n"
- buf += " * when converting a NodeACL from demo mode -> explict\n"
- buf += " */\n"
- buf += " se_nacl = core_tpg_add_initiator_node_acl(se_tpg, se_nacl_new,\n"
- buf += " name, nexus_depth);\n"
- buf += " if (IS_ERR(se_nacl)) {\n"
- buf += " " + fabric_mod_name + "_release_fabric_acl(se_tpg, se_nacl_new);\n"
- buf += " return se_nacl;\n"
- buf += " }\n"
- buf += " /*\n"
- buf += " * Locate our struct " + fabric_mod_name + "_nacl and set the FC Nport WWPN\n"
- buf += " */\n"
- buf += " nacl = container_of(se_nacl, struct " + fabric_mod_name + "_nacl, se_node_acl);\n"
-
- if proto_ident == "FC" or proto_ident == "SAS":
- buf += " nacl->" + fabric_mod_init_port + "_wwpn = wwpn;\n"
-
- buf += " /* " + fabric_mod_name + "_format_wwn(&nacl->" + fabric_mod_init_port + "_name[0], " + fabric_mod_name.upper() + "_NAMELEN, wwpn); */\n\n"
- buf += " return se_nacl;\n"
- buf += "}\n\n"
- buf += "static void " + fabric_mod_name + "_drop_nodeacl(struct se_node_acl *se_acl)\n"
- buf += "{\n"
- buf += " struct " + fabric_mod_name + "_nacl *nacl = container_of(se_acl,\n"
- buf += " struct " + fabric_mod_name + "_nacl, se_node_acl);\n"
- buf += " core_tpg_del_initiator_node_acl(se_acl->se_tpg, se_acl, 1);\n"
- buf += " kfree(nacl);\n"
- buf += "}\n\n"
-
buf += "static struct se_portal_group *" + fabric_mod_name + "_make_tpg(\n"
buf += " struct se_wwn *wwn,\n"
buf += " struct config_group *group,\n"
@@ -309,8 +231,7 @@
buf += " tpg->" + fabric_mod_port + " = " + fabric_mod_port + ";\n"
buf += " tpg->" + fabric_mod_port + "_tpgt = tpgt;\n\n"
buf += " ret = core_tpg_register(&" + fabric_mod_name + "_ops, wwn,\n"
- buf += " &tpg->se_tpg, tpg,\n"
- buf += " TRANSPORT_TPG_TYPE_NORMAL);\n"
+ buf += " &tpg->se_tpg, SCSI_PROTOCOL_SAS);\n"
buf += " if (ret < 0) {\n"
buf += " kfree(tpg);\n"
buf += " return NULL;\n"
@@ -372,21 +293,13 @@
buf += "static const struct target_core_fabric_ops " + fabric_mod_name + "_ops = {\n"
buf += " .module = THIS_MODULE,\n"
buf += " .name = " + fabric_mod_name + ",\n"
- buf += " .get_fabric_proto_ident = " + fabric_mod_name + "_get_fabric_proto_ident,\n"
buf += " .get_fabric_name = " + fabric_mod_name + "_get_fabric_name,\n"
- buf += " .get_fabric_proto_ident = " + fabric_mod_name + "_get_fabric_proto_ident,\n"
buf += " .tpg_get_wwn = " + fabric_mod_name + "_get_fabric_wwn,\n"
buf += " .tpg_get_tag = " + fabric_mod_name + "_get_tag,\n"
- buf += " .tpg_get_default_depth = " + fabric_mod_name + "_get_default_depth,\n"
- buf += " .tpg_get_pr_transport_id = " + fabric_mod_name + "_get_pr_transport_id,\n"
- buf += " .tpg_get_pr_transport_id_len = " + fabric_mod_name + "_get_pr_transport_id_len,\n"
- buf += " .tpg_parse_pr_out_transport_id = " + fabric_mod_name + "_parse_pr_out_transport_id,\n"
buf += " .tpg_check_demo_mode = " + fabric_mod_name + "_check_false,\n"
buf += " .tpg_check_demo_mode_cache = " + fabric_mod_name + "_check_true,\n"
buf += " .tpg_check_demo_mode_write_protect = " + fabric_mod_name + "_check_true,\n"
buf += " .tpg_check_prod_mode_write_protect = " + fabric_mod_name + "_check_false,\n"
- buf += " .tpg_alloc_fabric_acl = " + fabric_mod_name + "_alloc_fabric_acl,\n"
- buf += " .tpg_release_fabric_acl = " + fabric_mod_name + "_release_fabric_acl,\n"
buf += " .tpg_get_inst_index = " + fabric_mod_name + "_tpg_get_inst_index,\n"
buf += " .release_cmd = " + fabric_mod_name + "_release_cmd,\n"
buf += " .shutdown_session = " + fabric_mod_name + "_shutdown_session,\n"
@@ -396,7 +309,6 @@
buf += " .write_pending = " + fabric_mod_name + "_write_pending,\n"
buf += " .write_pending_status = " + fabric_mod_name + "_write_pending_status,\n"
buf += " .set_default_node_attributes = " + fabric_mod_name + "_set_default_node_attrs,\n"
- buf += " .get_task_tag = " + fabric_mod_name + "_get_task_tag,\n"
buf += " .get_cmd_state = " + fabric_mod_name + "_get_cmd_state,\n"
buf += " .queue_data_in = " + fabric_mod_name + "_queue_data_in,\n"
buf += " .queue_status = " + fabric_mod_name + "_queue_status,\n"
@@ -409,12 +321,6 @@
buf += " .fabric_drop_wwn = " + fabric_mod_name + "_drop_" + fabric_mod_port + ",\n"
buf += " .fabric_make_tpg = " + fabric_mod_name + "_make_tpg,\n"
buf += " .fabric_drop_tpg = " + fabric_mod_name + "_drop_tpg,\n"
- buf += " .fabric_post_link = NULL,\n"
- buf += " .fabric_pre_unlink = NULL,\n"
- buf += " .fabric_make_np = NULL,\n"
- buf += " .fabric_drop_np = NULL,\n"
- buf += " .fabric_make_nodeacl = " + fabric_mod_name + "_make_nodeacl,\n"
- buf += " .fabric_drop_nodeacl = " + fabric_mod_name + "_drop_nodeacl,\n"
buf += "\n"
buf += " .tfc_wwn_attrs = " + fabric_mod_name + "_wwn_attrs;\n"
buf += "};\n\n"
@@ -507,7 +413,6 @@
buf += "#include <scsi/scsi_proto.h>\n"
buf += "#include <target/target_core_base.h>\n"
buf += "#include <target/target_core_fabric.h>\n"
- buf += "#include <target/target_core_configfs.h>\n\n"
buf += "#include \"" + fabric_mod_name + "_base.h\"\n"
buf += "#include \"" + fabric_mod_name + "_fabric.h\"\n\n"
@@ -539,35 +444,6 @@
bufi += "char *" + fabric_mod_name + "_get_fabric_name(void);\n"
continue
- if re.search('get_fabric_proto_ident', fo):
- buf += "u8 " + fabric_mod_name + "_get_fabric_proto_ident(struct se_portal_group *se_tpg)\n"
- buf += "{\n"
- buf += " struct " + fabric_mod_name + "_tpg *tpg = container_of(se_tpg,\n"
- buf += " struct " + fabric_mod_name + "_tpg, se_tpg);\n"
- buf += " struct " + fabric_mod_name + "_" + fabric_mod_port + " *" + fabric_mod_port + " = tpg->" + fabric_mod_port + ";\n"
- buf += " u8 proto_id;\n\n"
- buf += " switch (" + fabric_mod_port + "->" + fabric_mod_port + "_proto_id) {\n"
- if proto_ident == "FC":
- buf += " case SCSI_PROTOCOL_FCP:\n"
- buf += " default:\n"
- buf += " proto_id = fc_get_fabric_proto_ident(se_tpg);\n"
- buf += " break;\n"
- elif proto_ident == "SAS":
- buf += " case SCSI_PROTOCOL_SAS:\n"
- buf += " default:\n"
- buf += " proto_id = sas_get_fabric_proto_ident(se_tpg);\n"
- buf += " break;\n"
- elif proto_ident == "iSCSI":
- buf += " case SCSI_PROTOCOL_ISCSI:\n"
- buf += " default:\n"
- buf += " proto_id = iscsi_get_fabric_proto_ident(se_tpg);\n"
- buf += " break;\n"
-
- buf += " }\n\n"
- buf += " return proto_id;\n"
- buf += "}\n\n"
- bufi += "u8 " + fabric_mod_name + "_get_fabric_proto_ident(struct se_portal_group *);\n"
-
if re.search('get_wwn', fo):
buf += "char *" + fabric_mod_name + "_get_fabric_wwn(struct se_portal_group *se_tpg)\n"
buf += "{\n"
@@ -587,150 +463,6 @@
buf += "}\n\n"
bufi += "u16 " + fabric_mod_name + "_get_tag(struct se_portal_group *);\n"
- if re.search('get_default_depth', fo):
- buf += "u32 " + fabric_mod_name + "_get_default_depth(struct se_portal_group *se_tpg)\n"
- buf += "{\n"
- buf += " return 1;\n"
- buf += "}\n\n"
- bufi += "u32 " + fabric_mod_name + "_get_default_depth(struct se_portal_group *);\n"
-
- if re.search('get_pr_transport_id\)\(', fo):
- buf += "u32 " + fabric_mod_name + "_get_pr_transport_id(\n"
- buf += " struct se_portal_group *se_tpg,\n"
- buf += " struct se_node_acl *se_nacl,\n"
- buf += " struct t10_pr_registration *pr_reg,\n"
- buf += " int *format_code,\n"
- buf += " unsigned char *buf)\n"
- buf += "{\n"
- buf += " struct " + fabric_mod_name + "_tpg *tpg = container_of(se_tpg,\n"
- buf += " struct " + fabric_mod_name + "_tpg, se_tpg);\n"
- buf += " struct " + fabric_mod_name + "_" + fabric_mod_port + " *" + fabric_mod_port + " = tpg->" + fabric_mod_port + ";\n"
- buf += " int ret = 0;\n\n"
- buf += " switch (" + fabric_mod_port + "->" + fabric_mod_port + "_proto_id) {\n"
- if proto_ident == "FC":
- buf += " case SCSI_PROTOCOL_FCP:\n"
- buf += " default:\n"
- buf += " ret = fc_get_pr_transport_id(se_tpg, se_nacl, pr_reg,\n"
- buf += " format_code, buf);\n"
- buf += " break;\n"
- elif proto_ident == "SAS":
- buf += " case SCSI_PROTOCOL_SAS:\n"
- buf += " default:\n"
- buf += " ret = sas_get_pr_transport_id(se_tpg, se_nacl, pr_reg,\n"
- buf += " format_code, buf);\n"
- buf += " break;\n"
- elif proto_ident == "iSCSI":
- buf += " case SCSI_PROTOCOL_ISCSI:\n"
- buf += " default:\n"
- buf += " ret = iscsi_get_pr_transport_id(se_tpg, se_nacl, pr_reg,\n"
- buf += " format_code, buf);\n"
- buf += " break;\n"
-
- buf += " }\n\n"
- buf += " return ret;\n"
- buf += "}\n\n"
- bufi += "u32 " + fabric_mod_name + "_get_pr_transport_id(struct se_portal_group *,\n"
- bufi += " struct se_node_acl *, struct t10_pr_registration *,\n"
- bufi += " int *, unsigned char *);\n"
-
- if re.search('get_pr_transport_id_len\)\(', fo):
- buf += "u32 " + fabric_mod_name + "_get_pr_transport_id_len(\n"
- buf += " struct se_portal_group *se_tpg,\n"
- buf += " struct se_node_acl *se_nacl,\n"
- buf += " struct t10_pr_registration *pr_reg,\n"
- buf += " int *format_code)\n"
- buf += "{\n"
- buf += " struct " + fabric_mod_name + "_tpg *tpg = container_of(se_tpg,\n"
- buf += " struct " + fabric_mod_name + "_tpg, se_tpg);\n"
- buf += " struct " + fabric_mod_name + "_" + fabric_mod_port + " *" + fabric_mod_port + " = tpg->" + fabric_mod_port + ";\n"
- buf += " int ret = 0;\n\n"
- buf += " switch (" + fabric_mod_port + "->" + fabric_mod_port + "_proto_id) {\n"
- if proto_ident == "FC":
- buf += " case SCSI_PROTOCOL_FCP:\n"
- buf += " default:\n"
- buf += " ret = fc_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,\n"
- buf += " format_code);\n"
- buf += " break;\n"
- elif proto_ident == "SAS":
- buf += " case SCSI_PROTOCOL_SAS:\n"
- buf += " default:\n"
- buf += " ret = sas_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,\n"
- buf += " format_code);\n"
- buf += " break;\n"
- elif proto_ident == "iSCSI":
- buf += " case SCSI_PROTOCOL_ISCSI:\n"
- buf += " default:\n"
- buf += " ret = iscsi_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,\n"
- buf += " format_code);\n"
- buf += " break;\n"
-
-
- buf += " }\n\n"
- buf += " return ret;\n"
- buf += "}\n\n"
- bufi += "u32 " + fabric_mod_name + "_get_pr_transport_id_len(struct se_portal_group *,\n"
- bufi += " struct se_node_acl *, struct t10_pr_registration *,\n"
- bufi += " int *);\n"
-
- if re.search('parse_pr_out_transport_id\)\(', fo):
- buf += "char *" + fabric_mod_name + "_parse_pr_out_transport_id(\n"
- buf += " struct se_portal_group *se_tpg,\n"
- buf += " const char *buf,\n"
- buf += " u32 *out_tid_len,\n"
- buf += " char **port_nexus_ptr)\n"
- buf += "{\n"
- buf += " struct " + fabric_mod_name + "_tpg *tpg = container_of(se_tpg,\n"
- buf += " struct " + fabric_mod_name + "_tpg, se_tpg);\n"
- buf += " struct " + fabric_mod_name + "_" + fabric_mod_port + " *" + fabric_mod_port + " = tpg->" + fabric_mod_port + ";\n"
- buf += " char *tid = NULL;\n\n"
- buf += " switch (" + fabric_mod_port + "->" + fabric_mod_port + "_proto_id) {\n"
- if proto_ident == "FC":
- buf += " case SCSI_PROTOCOL_FCP:\n"
- buf += " default:\n"
- buf += " tid = fc_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,\n"
- buf += " port_nexus_ptr);\n"
- elif proto_ident == "SAS":
- buf += " case SCSI_PROTOCOL_SAS:\n"
- buf += " default:\n"
- buf += " tid = sas_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,\n"
- buf += " port_nexus_ptr);\n"
- elif proto_ident == "iSCSI":
- buf += " case SCSI_PROTOCOL_ISCSI:\n"
- buf += " default:\n"
- buf += " tid = iscsi_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,\n"
- buf += " port_nexus_ptr);\n"
-
- buf += " }\n\n"
- buf += " return tid;\n"
- buf += "}\n\n"
- bufi += "char *" + fabric_mod_name + "_parse_pr_out_transport_id(struct se_portal_group *,\n"
- bufi += " const char *, u32 *, char **);\n"
-
- if re.search('alloc_fabric_acl\)\(', fo):
- buf += "struct se_node_acl *" + fabric_mod_name + "_alloc_fabric_acl(struct se_portal_group *se_tpg)\n"
- buf += "{\n"
- buf += " struct " + fabric_mod_name + "_nacl *nacl;\n\n"
- buf += " nacl = kzalloc(sizeof(struct " + fabric_mod_name + "_nacl), GFP_KERNEL);\n"
- buf += " if (!nacl) {\n"
- buf += " printk(KERN_ERR \"Unable to allocate struct " + fabric_mod_name + "_nacl\\n\");\n"
- buf += " return NULL;\n"
- buf += " }\n\n"
- buf += " return &nacl->se_node_acl;\n"
- buf += "}\n\n"
- bufi += "struct se_node_acl *" + fabric_mod_name + "_alloc_fabric_acl(struct se_portal_group *);\n"
-
- if re.search('release_fabric_acl\)\(', fo):
- buf += "void " + fabric_mod_name + "_release_fabric_acl(\n"
- buf += " struct se_portal_group *se_tpg,\n"
- buf += " struct se_node_acl *se_nacl)\n"
- buf += "{\n"
- buf += " struct " + fabric_mod_name + "_nacl *nacl = container_of(se_nacl,\n"
- buf += " struct " + fabric_mod_name + "_nacl, se_node_acl);\n"
- buf += " kfree(nacl);\n"
- buf += "}\n\n"
- bufi += "void " + fabric_mod_name + "_release_fabric_acl(struct se_portal_group *,\n"
- bufi += " struct se_node_acl *);\n"
-
if re.search('tpg_get_inst_index\)\(', fo):
buf += "u32 " + fabric_mod_name + "_tpg_get_inst_index(struct se_portal_group *se_tpg)\n"
buf += "{\n"
@@ -787,13 +519,6 @@
buf += "}\n\n"
bufi += "void " + fabric_mod_name + "_set_default_node_attrs(struct se_node_acl *);\n"
- if re.search('get_task_tag\)\(', fo):
- buf += "u32 " + fabric_mod_name + "_get_task_tag(struct se_cmd *se_cmd)\n"
- buf += "{\n"
- buf += " return 0;\n"
- buf += "}\n\n"
- bufi += "u32 " + fabric_mod_name + "_get_task_tag(struct se_cmd *);\n"
-
if re.search('get_cmd_state\)\(', fo):
buf += "int " + fabric_mod_name + "_get_cmd_state(struct se_cmd *se_cmd)\n"
buf += "{\n"
diff --git a/Documentation/target/tcm_mod_builder.txt b/Documentation/target/tcm_mod_builder.txt
index 84533d8..ae22f70 100644
--- a/Documentation/target/tcm_mod_builder.txt
+++ b/Documentation/target/tcm_mod_builder.txt
@@ -13,8 +13,8 @@
This script will create a new drivers/target/$TCM_NEW_MOD/, and will do the following
*) Generate new API callers for drivers/target/target_core_fabric_configs.c logic
- ->make_nodeacl(), ->drop_nodeacl(), ->make_tpg(), ->drop_tpg()
- ->make_wwn(), ->drop_wwn(). These are created into $TCM_NEW_MOD/$TCM_NEW_MOD_configfs.c
+ ->make_tpg(), ->drop_tpg(), ->make_wwn(), ->drop_wwn(). These are created
+ into $TCM_NEW_MOD/$TCM_NEW_MOD_configfs.c
*) Generate basic infrastructure for loading/unloading LKMs and TCM/ConfigFS fabric module
using a skeleton struct target_core_fabric_ops API template.
*) Based on user defined T10 Proto_Ident for the new fabric module being built,
diff --git a/Documentation/target/tcmu-design.txt b/Documentation/target/tcmu-design.txt
index 263b907..bef81e4 100644
--- a/Documentation/target/tcmu-design.txt
+++ b/Documentation/target/tcmu-design.txt
@@ -152,7 +152,7 @@
are accessible via tht req.iov[] array. iov_cnt contains the number of
entries in iov[] needed to describe either the Data-In or Data-Out
buffers. For bidirectional commands, iov_cnt specifies how many iovec
-entries cover the Data-Out area, and iov_bidi_count specifies how many
+entries cover the Data-Out area, and iov_bidi_cnt specifies how many
iovec entries immediately after that in iov[] cover the Data-In
area. Just like other fields, iov.iov_base is an offset from the start
of the region.
diff --git a/drivers/infiniband/ulp/isert/ib_isert.c b/drivers/infiniband/ulp/isert/ib_isert.c
index f3b7a34..7717009 100644
--- a/drivers/infiniband/ulp/isert/ib_isert.c
+++ b/drivers/infiniband/ulp/isert/ib_isert.c
@@ -1356,7 +1356,7 @@
if (!rc && dump_payload == false && unsol_data)
iscsit_set_unsoliticed_dataout(cmd);
else if (dump_payload && imm_data)
- target_put_sess_cmd(conn->sess->se_sess, &cmd->se_cmd);
+ target_put_sess_cmd(&cmd->se_cmd);
return 0;
}
@@ -1781,7 +1781,7 @@
cmd->se_cmd.t_state == TRANSPORT_WRITE_PENDING) {
struct se_cmd *se_cmd = &cmd->se_cmd;
- target_put_sess_cmd(se_cmd->se_sess, se_cmd);
+ target_put_sess_cmd(se_cmd);
}
}
@@ -1954,7 +1954,7 @@
spin_unlock_bh(&cmd->istate_lock);
if (ret) {
- target_put_sess_cmd(se_cmd->se_sess, se_cmd);
+ target_put_sess_cmd(se_cmd);
transport_send_check_condition_and_sense(se_cmd,
se_cmd->pi_err, 0);
} else {
diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c
index 4556cd1..82897ca 100644
--- a/drivers/infiniband/ulp/srpt/ib_srpt.c
+++ b/drivers/infiniband/ulp/srpt/ib_srpt.c
@@ -47,7 +47,6 @@
#include <target/target_core_base.h>
#include <target/target_core_fabric_configfs.h>
#include <target/target_core_fabric.h>
-#include <target/target_core_configfs.h>
#include "ib_srpt.h"
/* Name of this kernel module. */
@@ -94,7 +93,6 @@
" instead of using the node_guid of the first HCA.");
static struct ib_client srpt_client;
-static const struct target_core_fabric_ops srpt_template;
static void srpt_release_channel(struct srpt_rdma_ch *ch);
static int srpt_queue_status(struct se_cmd *cmd);
@@ -1336,12 +1334,12 @@
BUG_ON(ch->sess == NULL);
- target_put_sess_cmd(ch->sess, &ioctx->cmd);
+ target_put_sess_cmd(&ioctx->cmd);
goto out;
}
pr_debug("Aborting cmd with state %d and tag %lld\n", state,
- ioctx->tag);
+ ioctx->cmd.tag);
switch (state) {
case SRPT_STATE_NEW:
@@ -1367,11 +1365,11 @@
* not been received in time.
*/
srpt_unmap_sg_to_ib_sge(ioctx->ch, ioctx);
- target_put_sess_cmd(ioctx->ch->sess, &ioctx->cmd);
+ target_put_sess_cmd(&ioctx->cmd);
break;
case SRPT_STATE_MGMT_RSP_SENT:
srpt_set_cmd_state(ioctx, SRPT_STATE_DONE);
- target_put_sess_cmd(ioctx->ch->sess, &ioctx->cmd);
+ target_put_sess_cmd(&ioctx->cmd);
break;
default:
WARN(1, "Unexpected command state (%d)", state);
@@ -1389,7 +1387,6 @@
{
struct srpt_send_ioctx *ioctx;
enum srpt_command_state state;
- struct se_cmd *cmd;
u32 index;
atomic_inc(&ch->sq_wr_avail);
@@ -1397,7 +1394,6 @@
index = idx_from_wr_id(wr_id);
ioctx = ch->ioctx_ring[index];
state = srpt_get_cmd_state(ioctx);
- cmd = &ioctx->cmd;
WARN_ON(state != SRPT_STATE_CMD_RSP_SENT
&& state != SRPT_STATE_MGMT_RSP_SENT
@@ -1474,10 +1470,8 @@
struct srpt_send_ioctx *ioctx,
enum srpt_opcode opcode)
{
- struct se_cmd *cmd;
enum srpt_command_state state;
- cmd = &ioctx->cmd;
state = srpt_get_cmd_state(ioctx);
switch (opcode) {
case SRPT_RDMA_READ_LAST:
@@ -1681,7 +1675,7 @@
struct srpt_send_ioctx *ioctx = container_of(cmd,
struct srpt_send_ioctx, cmd);
- return target_put_sess_cmd(ioctx->ch->sess, &ioctx->cmd);
+ return target_put_sess_cmd(&ioctx->cmd);
}
/**
@@ -1703,7 +1697,7 @@
srp_cmd = recv_ioctx->ioctx.buf;
cmd = &send_ioctx->cmd;
- send_ioctx->tag = srp_cmd->tag;
+ cmd->tag = srp_cmd->tag;
switch (srp_cmd->task_attr) {
case SRP_CMD_SIMPLE_Q:
@@ -1774,7 +1768,7 @@
for (i = 0; i < ch->rq_size; ++i) {
target = ch->ioctx_ring[i];
if (target->cmd.se_lun == ioctx->cmd.se_lun &&
- target->tag == tag &&
+ target->cmd.tag == tag &&
srpt_get_cmd_state(target) != SRPT_STATE_DONE) {
ret = 0;
/* now let the target core abort &target->cmd; */
@@ -1833,7 +1827,7 @@
srp_tsk->task_tag, srp_tsk->tag, ch->cm_id, ch->sess);
srpt_set_cmd_state(send_ioctx, SRPT_STATE_MGMT);
- send_ioctx->tag = srp_tsk->tag;
+ send_ioctx->cmd.tag = srp_tsk->tag;
tcm_tmr = srp_tmr_to_tcm(srp_tsk->tsk_mgmt_func);
if (tcm_tmr < 0) {
send_ioctx->cmd.se_tmr_req->response =
@@ -2180,12 +2174,9 @@
*/
static void __srpt_close_ch(struct srpt_rdma_ch *ch)
{
- struct srpt_device *sdev;
enum rdma_ch_state prev_state;
unsigned long flags;
- sdev = ch->sport->sdev;
-
spin_lock_irqsave(&ch->spinlock, flags);
prev_state = ch->state;
switch (prev_state) {
@@ -2983,7 +2974,7 @@
case CH_DRAINING:
case CH_RELEASING:
pr_debug("cmd with tag %lld: channel disconnecting\n",
- ioctx->tag);
+ ioctx->cmd.tag);
srpt_set_cmd_state(ioctx, SRPT_STATE_DATA_IN);
ret = -EINVAL;
goto out;
@@ -3058,27 +3049,27 @@
ret = srpt_xfer_data(ch, ioctx);
if (ret) {
pr_err("xfer_data failed for tag %llu\n",
- ioctx->tag);
+ ioctx->cmd.tag);
return;
}
}
if (state != SRPT_STATE_MGMT)
- resp_len = srpt_build_cmd_rsp(ch, ioctx, ioctx->tag,
+ resp_len = srpt_build_cmd_rsp(ch, ioctx, ioctx->cmd.tag,
cmd->scsi_status);
else {
srp_tm_status
= tcm_to_srp_tsk_mgmt_status(cmd->se_tmr_req->response);
resp_len = srpt_build_tskmgmt_rsp(ch, ioctx, srp_tm_status,
- ioctx->tag);
+ ioctx->cmd.tag);
}
ret = srpt_post_send(ch, ioctx, resp_len);
if (ret) {
pr_err("sending cmd response failed for tag %llu\n",
- ioctx->tag);
+ ioctx->cmd.tag);
srpt_unmap_sg_to_ib_sge(ch, ioctx);
srpt_set_cmd_state(ioctx, SRPT_STATE_DONE);
- target_put_sess_cmd(ioctx->ch->sess, &ioctx->cmd);
+ target_put_sess_cmd(&ioctx->cmd);
}
}
@@ -3398,11 +3389,6 @@
return "srpt";
}
-static u8 srpt_get_fabric_proto_ident(struct se_portal_group *se_tpg)
-{
- return SCSI_TRANSPORTID_PROTOCOLID_SRP;
-}
-
static char *srpt_get_fabric_wwn(struct se_portal_group *tpg)
{
struct srpt_port *sport = container_of(tpg, struct srpt_port, port_tpg_1);
@@ -3415,69 +3401,6 @@
return 1;
}
-static u32 srpt_get_default_depth(struct se_portal_group *se_tpg)
-{
- return 1;
-}
-
-static u32 srpt_get_pr_transport_id(struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl,
- struct t10_pr_registration *pr_reg,
- int *format_code, unsigned char *buf)
-{
- struct srpt_node_acl *nacl;
- struct spc_rdma_transport_id *tr_id;
-
- nacl = container_of(se_nacl, struct srpt_node_acl, nacl);
- tr_id = (void *)buf;
- tr_id->protocol_identifier = SCSI_TRANSPORTID_PROTOCOLID_SRP;
- memcpy(tr_id->i_port_id, nacl->i_port_id, sizeof(tr_id->i_port_id));
- return sizeof(*tr_id);
-}
-
-static u32 srpt_get_pr_transport_id_len(struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl,
- struct t10_pr_registration *pr_reg,
- int *format_code)
-{
- *format_code = 0;
- return sizeof(struct spc_rdma_transport_id);
-}
-
-static char *srpt_parse_pr_out_transport_id(struct se_portal_group *se_tpg,
- const char *buf, u32 *out_tid_len,
- char **port_nexus_ptr)
-{
- struct spc_rdma_transport_id *tr_id;
-
- *port_nexus_ptr = NULL;
- *out_tid_len = sizeof(struct spc_rdma_transport_id);
- tr_id = (void *)buf;
- return (char *)tr_id->i_port_id;
-}
-
-static struct se_node_acl *srpt_alloc_fabric_acl(struct se_portal_group *se_tpg)
-{
- struct srpt_node_acl *nacl;
-
- nacl = kzalloc(sizeof(struct srpt_node_acl), GFP_KERNEL);
- if (!nacl) {
- pr_err("Unable to allocate struct srpt_node_acl\n");
- return NULL;
- }
-
- return &nacl->nacl;
-}
-
-static void srpt_release_fabric_acl(struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl)
-{
- struct srpt_node_acl *nacl;
-
- nacl = container_of(se_nacl, struct srpt_node_acl, nacl);
- kfree(nacl);
-}
-
static u32 srpt_tpg_get_inst_index(struct se_portal_group *se_tpg)
{
return 1;
@@ -3551,14 +3474,6 @@
{
}
-static u32 srpt_get_task_tag(struct se_cmd *se_cmd)
-{
- struct srpt_send_ioctx *ioctx;
-
- ioctx = container_of(se_cmd, struct srpt_send_ioctx, cmd);
- return ioctx->tag;
-}
-
/* Note: only used from inside debug printk's by the TCM core. */
static int srpt_get_tcm_cmd_state(struct se_cmd *se_cmd)
{
@@ -3601,40 +3516,19 @@
* configfs callback function invoked for
* mkdir /sys/kernel/config/target/$driver/$port/$tpg/acls/$i_port_id
*/
-static struct se_node_acl *srpt_make_nodeacl(struct se_portal_group *tpg,
- struct config_group *group,
- const char *name)
+static int srpt_init_nodeacl(struct se_node_acl *se_nacl, const char *name)
{
- struct srpt_port *sport = container_of(tpg, struct srpt_port, port_tpg_1);
- struct se_node_acl *se_nacl, *se_nacl_new;
- struct srpt_node_acl *nacl;
- int ret = 0;
- u32 nexus_depth = 1;
+ struct srpt_port *sport =
+ container_of(se_nacl->se_tpg, struct srpt_port, port_tpg_1);
+ struct srpt_node_acl *nacl =
+ container_of(se_nacl, struct srpt_node_acl, nacl);
u8 i_port_id[16];
if (srpt_parse_i_port_id(i_port_id, name) < 0) {
pr_err("invalid initiator port ID %s\n", name);
- ret = -EINVAL;
- goto err;
+ return -EINVAL;
}
- se_nacl_new = srpt_alloc_fabric_acl(tpg);
- if (!se_nacl_new) {
- ret = -ENOMEM;
- goto err;
- }
- /*
- * nacl_new may be released by core_tpg_add_initiator_node_acl()
- * when converting a node ACL from demo mode to explict
- */
- se_nacl = core_tpg_add_initiator_node_acl(tpg, se_nacl_new, name,
- nexus_depth);
- if (IS_ERR(se_nacl)) {
- ret = PTR_ERR(se_nacl);
- goto err;
- }
- /* Locate our struct srpt_node_acl and set sdev and i_port_id. */
- nacl = container_of(se_nacl, struct srpt_node_acl, nacl);
memcpy(&nacl->i_port_id[0], &i_port_id[0], 16);
nacl->sport = sport;
@@ -3642,29 +3536,22 @@
list_add_tail(&nacl->list, &sport->port_acl_list);
spin_unlock_irq(&sport->port_acl_lock);
- return se_nacl;
-err:
- return ERR_PTR(ret);
+ return 0;
}
/*
* configfs callback function invoked for
* rmdir /sys/kernel/config/target/$driver/$port/$tpg/acls/$i_port_id
*/
-static void srpt_drop_nodeacl(struct se_node_acl *se_nacl)
+static void srpt_cleanup_nodeacl(struct se_node_acl *se_nacl)
{
- struct srpt_node_acl *nacl;
- struct srpt_device *sdev;
- struct srpt_port *sport;
+ struct srpt_node_acl *nacl =
+ container_of(se_nacl, struct srpt_node_acl, nacl);
+ struct srpt_port *sport = nacl->sport;
- nacl = container_of(se_nacl, struct srpt_node_acl, nacl);
- sport = nacl->sport;
- sdev = sport->sdev;
spin_lock_irq(&sport->port_acl_lock);
list_del(&nacl->list);
spin_unlock_irq(&sport->port_acl_lock);
- core_tpg_del_initiator_node_acl(&sport->port_tpg_1, se_nacl, 1);
- srpt_release_fabric_acl(NULL, se_nacl);
}
static ssize_t srpt_tpg_attrib_show_srp_max_rdma_size(
@@ -3849,8 +3736,7 @@
int res;
/* Initialize sport->port_wwn and sport->port_tpg_1 */
- res = core_tpg_register(&srpt_template, &sport->port_wwn,
- &sport->port_tpg_1, sport, TRANSPORT_TPG_TYPE_NORMAL);
+ res = core_tpg_register(&sport->port_wwn, &sport->port_tpg_1, SCSI_PROTOCOL_SRP);
if (res)
return ERR_PTR(res);
@@ -3920,20 +3806,14 @@
static const struct target_core_fabric_ops srpt_template = {
.module = THIS_MODULE,
.name = "srpt",
+ .node_acl_size = sizeof(struct srpt_node_acl),
.get_fabric_name = srpt_get_fabric_name,
- .get_fabric_proto_ident = srpt_get_fabric_proto_ident,
.tpg_get_wwn = srpt_get_fabric_wwn,
.tpg_get_tag = srpt_get_tag,
- .tpg_get_default_depth = srpt_get_default_depth,
- .tpg_get_pr_transport_id = srpt_get_pr_transport_id,
- .tpg_get_pr_transport_id_len = srpt_get_pr_transport_id_len,
- .tpg_parse_pr_out_transport_id = srpt_parse_pr_out_transport_id,
.tpg_check_demo_mode = srpt_check_false,
.tpg_check_demo_mode_cache = srpt_check_true,
.tpg_check_demo_mode_write_protect = srpt_check_true,
.tpg_check_prod_mode_write_protect = srpt_check_false,
- .tpg_alloc_fabric_acl = srpt_alloc_fabric_acl,
- .tpg_release_fabric_acl = srpt_release_fabric_acl,
.tpg_get_inst_index = srpt_tpg_get_inst_index,
.release_cmd = srpt_release_cmd,
.check_stop_free = srpt_check_stop_free,
@@ -3944,7 +3824,6 @@
.write_pending = srpt_write_pending,
.write_pending_status = srpt_write_pending_status,
.set_default_node_attributes = srpt_set_default_node_attrs,
- .get_task_tag = srpt_get_task_tag,
.get_cmd_state = srpt_get_tcm_cmd_state,
.queue_data_in = srpt_queue_data_in,
.queue_status = srpt_queue_status,
@@ -3958,12 +3837,8 @@
.fabric_drop_wwn = srpt_drop_tport,
.fabric_make_tpg = srpt_make_tpg,
.fabric_drop_tpg = srpt_drop_tpg,
- .fabric_post_link = NULL,
- .fabric_pre_unlink = NULL,
- .fabric_make_np = NULL,
- .fabric_drop_np = NULL,
- .fabric_make_nodeacl = srpt_make_nodeacl,
- .fabric_drop_nodeacl = srpt_drop_nodeacl,
+ .fabric_init_nodeacl = srpt_init_nodeacl,
+ .fabric_cleanup_nodeacl = srpt_cleanup_nodeacl,
.tfc_wwn_attrs = srpt_wwn_attrs,
.tfc_tpg_base_attrs = srpt_tpg_attrs,
diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.h b/drivers/infiniband/ulp/srpt/ib_srpt.h
index d85c0c2..21f8df6 100644
--- a/drivers/infiniband/ulp/srpt/ib_srpt.h
+++ b/drivers/infiniband/ulp/srpt/ib_srpt.h
@@ -238,7 +238,6 @@
bool rdma_aborted;
struct se_cmd cmd;
struct completion tx_done;
- u64 tag;
int sg_cnt;
int mapped_sg_count;
u16 n_rdma_ius;
@@ -410,34 +409,16 @@
/**
* struct srpt_node_acl - Per-initiator ACL data (managed via configfs).
+ * @nacl: Target core node ACL information.
* @i_port_id: 128-bit SRP initiator port ID.
* @sport: port information.
- * @nacl: Target core node ACL information.
* @list: Element of the per-HCA ACL list.
*/
struct srpt_node_acl {
+ struct se_node_acl nacl;
u8 i_port_id[16];
struct srpt_port *sport;
- struct se_node_acl nacl;
struct list_head list;
};
-/*
- * SRP-releated SCSI persistent reservation definitions.
- *
- * See also SPC4r28, section 7.6.1 (Protocol specific parameters introduction).
- * See also SPC4r28, section 7.6.4.5 (TransportID for initiator ports using
- * SCSI over an RDMA interface).
- */
-
-enum {
- SCSI_TRANSPORTID_PROTOCOLID_SRP = 4,
-};
-
-struct spc_rdma_transport_id {
- uint8_t protocol_identifier;
- uint8_t reserved[7];
- uint8_t i_port_id[16];
-};
-
#endif /* IB_SRPT_H */
diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c
index 4a484d6..b749026 100644
--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -1191,7 +1191,7 @@
list_for_each_entry(se_cmd, &se_sess->sess_cmd_list, se_cmd_list) {
struct qla_tgt_cmd *cmd =
container_of(se_cmd, struct qla_tgt_cmd, se_cmd);
- if (cmd->tag == abts->exchange_addr_to_abort) {
+ if (se_cmd->tag == abts->exchange_addr_to_abort) {
lun = cmd->unpacked_lun;
found_lun = true;
break;
@@ -1728,9 +1728,8 @@
if (unlikely(cmd->aborted)) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf014,
- "qla_target(%d): terminating exchange "
- "for aborted cmd=%p (se_cmd=%p, tag=%d)", vha->vp_idx, cmd,
- se_cmd, cmd->tag);
+ "qla_target(%d): terminating exchange for aborted cmd=%p (se_cmd=%p, tag=%lld)",
+ vha->vp_idx, cmd, se_cmd, se_cmd->tag);
cmd->state = QLA_TGT_STATE_ABORTED;
cmd->cmd_flags |= BIT_6;
@@ -1765,18 +1764,17 @@
if (se_cmd->se_cmd_flags & SCF_UNDERFLOW_BIT) {
prm->residual = se_cmd->residual_count;
ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x305c,
- "Residual underflow: %d (tag %d, "
- "op %x, bufflen %d, rq_result %x)\n", prm->residual,
- cmd->tag, se_cmd->t_task_cdb ? se_cmd->t_task_cdb[0] : 0,
- cmd->bufflen, prm->rq_result);
+ "Residual underflow: %d (tag %lld, op %x, bufflen %d, rq_result %x)\n",
+ prm->residual, se_cmd->tag,
+ se_cmd->t_task_cdb ? se_cmd->t_task_cdb[0] : 0,
+ cmd->bufflen, prm->rq_result);
prm->rq_result |= SS_RESIDUAL_UNDER;
} else if (se_cmd->se_cmd_flags & SCF_OVERFLOW_BIT) {
prm->residual = se_cmd->residual_count;
ql_dbg(ql_dbg_io, vha, 0x305d,
- "Residual overflow: %d (tag %d, "
- "op %x, bufflen %d, rq_result %x)\n", prm->residual,
- cmd->tag, se_cmd->t_task_cdb ? se_cmd->t_task_cdb[0] : 0,
- cmd->bufflen, prm->rq_result);
+ "Residual overflow: %d (tag %lld, op %x, bufflen %d, rq_result %x)\n",
+ prm->residual, se_cmd->tag, se_cmd->t_task_cdb ?
+ se_cmd->t_task_cdb[0] : 0, cmd->bufflen, prm->rq_result);
prm->rq_result |= SS_RESIDUAL_OVER;
}
@@ -1849,7 +1847,7 @@
== 50) {
*xmit_type &= ~QLA_TGT_XMIT_STATUS;
ql_dbg(ql_dbg_tgt_mgt, cmd->vha, 0xf015,
- "Dropping cmd %p (tag %d) status", cmd, cmd->tag);
+ "Dropping cmd %p (tag %d) status", cmd, se_cmd->tag);
}
#endif
/*
@@ -1873,7 +1871,7 @@
ql_dbg(ql_dbg_tgt_mgt, cmd->vha, 0xf016,
"Cutting cmd %p (tag %d) buffer"
" tail to len %d, sg_cnt %d (cmd->bufflen %d,"
- " cmd->sg_cnt %d)", cmd, cmd->tag, tot_len, leave,
+ " cmd->sg_cnt %d)", cmd, se_cmd->tag, tot_len, leave,
cmd->bufflen, cmd->sg_cnt);
cmd->bufflen = tot_len;
@@ -1885,13 +1883,13 @@
ql_dbg(ql_dbg_tgt_mgt, cmd->vha, 0xf017,
"Cutting cmd %p (tag %d) buffer head "
- "to offset %d (cmd->bufflen %d)", cmd, cmd->tag, offset,
+ "to offset %d (cmd->bufflen %d)", cmd, se_cmd->tag, offset,
cmd->bufflen);
if (offset == 0)
*xmit_type &= ~QLA_TGT_XMIT_DATA;
else if (qlt_set_data_offset(cmd, offset)) {
ql_dbg(ql_dbg_tgt_mgt, cmd->vha, 0xf018,
- "qlt_set_data_offset() failed (tag %d)", cmd->tag);
+ "qlt_set_data_offset() failed (tag %d)", se_cmd->tag);
}
}
}
@@ -3194,7 +3192,7 @@
return;
} else if (cmd->state == QLA_TGT_STATE_ABORTED) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01e,
- "Aborted command %p (tag %d) finished\n", cmd, cmd->tag);
+ "Aborted command %p (tag %lld) finished\n", cmd, se_cmd->tag);
} else {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05c,
"qla_target(%d): A command in state (%d) should "
@@ -3266,7 +3264,7 @@
goto out_term;
cdb = &atio->u.isp24.fcp_cmnd.cdb[0];
- cmd->tag = atio->u.isp24.exchange_addr;
+ cmd->se_cmd.tag = atio->u.isp24.exchange_addr;
cmd->unpacked_lun = scsilun_to_int(
(struct scsi_lun *)&atio->u.isp24.fcp_cmnd.lun);
@@ -3893,9 +3891,8 @@
resp = 1;
} else {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf064,
- "qla_target(%d): SRR for in data for cmd "
- "without them (tag %d, SCSI status %d), "
- "reject", vha->vp_idx, cmd->tag,
+ "qla_target(%d): SRR for in data for cmd without them (tag %lld, SCSI status %d), reject",
+ vha->vp_idx, se_cmd->tag,
cmd->se_cmd.scsi_status);
goto out_reject;
}
@@ -3929,10 +3926,8 @@
}
} else {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf066,
- "qla_target(%d): SRR for out data for cmd "
- "without them (tag %d, SCSI status %d), "
- "reject", vha->vp_idx, cmd->tag,
- cmd->se_cmd.scsi_status);
+ "qla_target(%d): SRR for out data for cmd without them (tag %lld, SCSI status %d), reject",
+ vha->vp_idx, se_cmd->tag, cmd->se_cmd.scsi_status);
goto out_reject;
}
break;
@@ -4053,10 +4048,9 @@
cmd->sg = se_cmd->t_data_sg;
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf02c,
- "SRR cmd %p (se_cmd %p, tag %d, op %x), "
- "sg_cnt=%d, offset=%d", cmd, &cmd->se_cmd, cmd->tag,
- se_cmd->t_task_cdb ? se_cmd->t_task_cdb[0] : 0,
- cmd->sg_cnt, cmd->offset);
+ "SRR cmd %p (se_cmd %p, tag %lld, op %x), sg_cnt=%d, offset=%d",
+ cmd, &cmd->se_cmd, se_cmd->tag, se_cmd->t_task_cdb ?
+ se_cmd->t_task_cdb[0] : 0, cmd->sg_cnt, cmd->offset);
qlt_handle_srr(vha, sctio, imm);
diff --git a/drivers/scsi/qla2xxx/qla_target.h b/drivers/scsi/qla2xxx/qla_target.h
index 3320867..985d76d 100644
--- a/drivers/scsi/qla2xxx/qla_target.h
+++ b/drivers/scsi/qla2xxx/qla_target.h
@@ -924,7 +924,6 @@
int sg_cnt; /* SG segments count */
int bufflen; /* cmd buffer length */
int offset;
- uint32_t tag;
uint32_t unpacked_lun;
enum dma_data_direction dma_data_direction;
uint32_t reset_count;
diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.c b/drivers/scsi/qla2xxx/tcm_qla2xxx.c
index e32d24e..d9a8c60 100644
--- a/drivers/scsi/qla2xxx/tcm_qla2xxx.c
+++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.c
@@ -44,7 +44,6 @@
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
#include <target/target_core_fabric_configfs.h>
-#include <target/target_core_configfs.h>
#include <target/configfs_macros.h>
#include "qla_def.h"
@@ -54,9 +53,6 @@
static struct workqueue_struct *tcm_qla2xxx_free_wq;
static struct workqueue_struct *tcm_qla2xxx_cmd_wq;
-static const struct target_core_fabric_ops tcm_qla2xxx_ops;
-static const struct target_core_fabric_ops tcm_qla2xxx_npiv_ops;
-
/*
* Parse WWN.
* If strict, we require lower-case hex and colon separators to be sure
@@ -191,23 +187,6 @@
return "qla2xxx_npiv";
}
-static u8 tcm_qla2xxx_get_fabric_proto_ident(struct se_portal_group *se_tpg)
-{
- struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
- struct tcm_qla2xxx_tpg, se_tpg);
- struct tcm_qla2xxx_lport *lport = tpg->lport;
- u8 proto_id;
-
- switch (lport->lport_proto_id) {
- case SCSI_PROTOCOL_FCP:
- default:
- proto_id = fc_get_fabric_proto_ident(se_tpg);
- break;
- }
-
- return proto_id;
-}
-
static char *tcm_qla2xxx_get_fabric_wwn(struct se_portal_group *se_tpg)
{
struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
@@ -224,78 +203,6 @@
return tpg->lport_tpgt;
}
-static u32 tcm_qla2xxx_get_default_depth(struct se_portal_group *se_tpg)
-{
- return 1;
-}
-
-static u32 tcm_qla2xxx_get_pr_transport_id(
- struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl,
- struct t10_pr_registration *pr_reg,
- int *format_code,
- unsigned char *buf)
-{
- struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
- struct tcm_qla2xxx_tpg, se_tpg);
- struct tcm_qla2xxx_lport *lport = tpg->lport;
- int ret = 0;
-
- switch (lport->lport_proto_id) {
- case SCSI_PROTOCOL_FCP:
- default:
- ret = fc_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
- format_code, buf);
- break;
- }
-
- return ret;
-}
-
-static u32 tcm_qla2xxx_get_pr_transport_id_len(
- struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl,
- struct t10_pr_registration *pr_reg,
- int *format_code)
-{
- struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
- struct tcm_qla2xxx_tpg, se_tpg);
- struct tcm_qla2xxx_lport *lport = tpg->lport;
- int ret = 0;
-
- switch (lport->lport_proto_id) {
- case SCSI_PROTOCOL_FCP:
- default:
- ret = fc_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
- format_code);
- break;
- }
-
- return ret;
-}
-
-static char *tcm_qla2xxx_parse_pr_out_transport_id(
- struct se_portal_group *se_tpg,
- const char *buf,
- u32 *out_tid_len,
- char **port_nexus_ptr)
-{
- struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
- struct tcm_qla2xxx_tpg, se_tpg);
- struct tcm_qla2xxx_lport *lport = tpg->lport;
- char *tid = NULL;
-
- switch (lport->lport_proto_id) {
- case SCSI_PROTOCOL_FCP:
- default:
- tid = fc_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
- port_nexus_ptr);
- break;
- }
-
- return tid;
-}
-
static int tcm_qla2xxx_check_demo_mode(struct se_portal_group *se_tpg)
{
struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
@@ -344,29 +251,6 @@
return tpg->tpg_attrib.fabric_prot_type;
}
-static struct se_node_acl *tcm_qla2xxx_alloc_fabric_acl(
- struct se_portal_group *se_tpg)
-{
- struct tcm_qla2xxx_nacl *nacl;
-
- nacl = kzalloc(sizeof(struct tcm_qla2xxx_nacl), GFP_KERNEL);
- if (!nacl) {
- pr_err("Unable to allocate struct tcm_qla2xxx_nacl\n");
- return NULL;
- }
-
- return &nacl->se_node_acl;
-}
-
-static void tcm_qla2xxx_release_fabric_acl(
- struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl)
-{
- struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl,
- struct tcm_qla2xxx_nacl, se_node_acl);
- kfree(nacl);
-}
-
static u32 tcm_qla2xxx_tpg_get_inst_index(struct se_portal_group *se_tpg)
{
struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
@@ -430,7 +314,7 @@
cmd->cmd_flags |= BIT_14;
}
- return target_put_sess_cmd(se_cmd->se_sess, se_cmd);
+ return target_put_sess_cmd(se_cmd);
}
/* tcm_qla2xxx_release_cmd - Callback from TCM Core to release underlying
@@ -534,19 +418,6 @@
return;
}
-static u32 tcm_qla2xxx_get_task_tag(struct se_cmd *se_cmd)
-{
- struct qla_tgt_cmd *cmd;
-
- /* check for task mgmt cmd */
- if (se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)
- return 0xffffffff;
-
- cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd);
-
- return cmd->tag;
-}
-
static int tcm_qla2xxx_get_cmd_state(struct se_cmd *se_cmd)
{
return 0;
@@ -827,17 +698,6 @@
qlt_unreg_sess(se_sess->fabric_sess_ptr);
}
-static void tcm_qla2xxx_put_session(struct se_session *se_sess)
-{
- struct qla_tgt_sess *sess = se_sess->fabric_sess_ptr;
- struct qla_hw_data *ha = sess->vha->hw;
- unsigned long flags;
-
- spin_lock_irqsave(&ha->hardware_lock, flags);
- kref_put(&se_sess->sess_kref, tcm_qla2xxx_release_session);
- spin_unlock_irqrestore(&ha->hardware_lock, flags);
-}
-
static void tcm_qla2xxx_put_sess(struct qla_tgt_sess *sess)
{
if (!sess)
@@ -853,53 +713,20 @@
target_sess_cmd_list_set_waiting(sess->se_sess);
}
-static struct se_node_acl *tcm_qla2xxx_make_nodeacl(
- struct se_portal_group *se_tpg,
- struct config_group *group,
- const char *name)
+static int tcm_qla2xxx_init_nodeacl(struct se_node_acl *se_nacl,
+ const char *name)
{
- struct se_node_acl *se_nacl, *se_nacl_new;
- struct tcm_qla2xxx_nacl *nacl;
+ struct tcm_qla2xxx_nacl *nacl =
+ container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl);
u64 wwnn;
- u32 qla2xxx_nexus_depth;
if (tcm_qla2xxx_parse_wwn(name, &wwnn, 1) < 0)
- return ERR_PTR(-EINVAL);
+ return -EINVAL;
- se_nacl_new = tcm_qla2xxx_alloc_fabric_acl(se_tpg);
- if (!se_nacl_new)
- return ERR_PTR(-ENOMEM);
-/* #warning FIXME: Hardcoded qla2xxx_nexus depth in tcm_qla2xxx_make_nodeacl */
- qla2xxx_nexus_depth = 1;
-
- /*
- * se_nacl_new may be released by core_tpg_add_initiator_node_acl()
- * when converting a NodeACL from demo mode -> explict
- */
- se_nacl = core_tpg_add_initiator_node_acl(se_tpg, se_nacl_new,
- name, qla2xxx_nexus_depth);
- if (IS_ERR(se_nacl)) {
- tcm_qla2xxx_release_fabric_acl(se_tpg, se_nacl_new);
- return se_nacl;
- }
- /*
- * Locate our struct tcm_qla2xxx_nacl and set the FC Nport WWPN
- */
- nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl);
nacl->nport_wwnn = wwnn;
tcm_qla2xxx_format_wwn(&nacl->nport_name[0], TCM_QLA2XXX_NAMELEN, wwnn);
- return se_nacl;
-}
-
-static void tcm_qla2xxx_drop_nodeacl(struct se_node_acl *se_acl)
-{
- struct se_portal_group *se_tpg = se_acl->se_tpg;
- struct tcm_qla2xxx_nacl *nacl = container_of(se_acl,
- struct tcm_qla2xxx_nacl, se_node_acl);
-
- core_tpg_del_initiator_node_acl(se_tpg, se_acl, 1);
- kfree(nacl);
+ return 0;
}
/* Start items for tcm_qla2xxx_tpg_attrib_cit */
@@ -1175,8 +1002,7 @@
tpg->tpg_attrib.cache_dynamic_acls = 1;
tpg->tpg_attrib.demo_mode_login_only = 1;
- ret = core_tpg_register(&tcm_qla2xxx_ops, wwn,
- &tpg->se_tpg, tpg, TRANSPORT_TPG_TYPE_NORMAL);
+ ret = core_tpg_register(wwn, &tpg->se_tpg, SCSI_PROTOCOL_FCP);
if (ret < 0) {
kfree(tpg);
return NULL;
@@ -1295,8 +1121,7 @@
tpg->tpg_attrib.cache_dynamic_acls = 1;
tpg->tpg_attrib.demo_mode_login_only = 1;
- ret = core_tpg_register(&tcm_qla2xxx_npiv_ops, wwn,
- &tpg->se_tpg, tpg, TRANSPORT_TPG_TYPE_NORMAL);
+ ret = core_tpg_register(wwn, &tpg->se_tpg, SCSI_PROTOCOL_FCP);
if (ret < 0) {
kfree(tpg);
return NULL;
@@ -1988,14 +1813,10 @@
static const struct target_core_fabric_ops tcm_qla2xxx_ops = {
.module = THIS_MODULE,
.name = "qla2xxx",
+ .node_acl_size = sizeof(struct tcm_qla2xxx_nacl),
.get_fabric_name = tcm_qla2xxx_get_fabric_name,
- .get_fabric_proto_ident = tcm_qla2xxx_get_fabric_proto_ident,
.tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn,
.tpg_get_tag = tcm_qla2xxx_get_tag,
- .tpg_get_default_depth = tcm_qla2xxx_get_default_depth,
- .tpg_get_pr_transport_id = tcm_qla2xxx_get_pr_transport_id,
- .tpg_get_pr_transport_id_len = tcm_qla2xxx_get_pr_transport_id_len,
- .tpg_parse_pr_out_transport_id = tcm_qla2xxx_parse_pr_out_transport_id,
.tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode,
.tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache,
.tpg_check_demo_mode_write_protect =
@@ -2004,12 +1825,9 @@
tcm_qla2xxx_check_prod_write_protect,
.tpg_check_prot_fabric_only = tcm_qla2xxx_check_prot_fabric_only,
.tpg_check_demo_mode_login_only = tcm_qla2xxx_check_demo_mode_login_only,
- .tpg_alloc_fabric_acl = tcm_qla2xxx_alloc_fabric_acl,
- .tpg_release_fabric_acl = tcm_qla2xxx_release_fabric_acl,
.tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index,
.check_stop_free = tcm_qla2xxx_check_stop_free,
.release_cmd = tcm_qla2xxx_release_cmd,
- .put_session = tcm_qla2xxx_put_session,
.shutdown_session = tcm_qla2xxx_shutdown_session,
.close_session = tcm_qla2xxx_close_session,
.sess_get_index = tcm_qla2xxx_sess_get_index,
@@ -2017,7 +1835,6 @@
.write_pending = tcm_qla2xxx_write_pending,
.write_pending_status = tcm_qla2xxx_write_pending_status,
.set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs,
- .get_task_tag = tcm_qla2xxx_get_task_tag,
.get_cmd_state = tcm_qla2xxx_get_cmd_state,
.queue_data_in = tcm_qla2xxx_queue_data_in,
.queue_status = tcm_qla2xxx_queue_status,
@@ -2031,12 +1848,7 @@
.fabric_drop_wwn = tcm_qla2xxx_drop_lport,
.fabric_make_tpg = tcm_qla2xxx_make_tpg,
.fabric_drop_tpg = tcm_qla2xxx_drop_tpg,
- .fabric_post_link = NULL,
- .fabric_pre_unlink = NULL,
- .fabric_make_np = NULL,
- .fabric_drop_np = NULL,
- .fabric_make_nodeacl = tcm_qla2xxx_make_nodeacl,
- .fabric_drop_nodeacl = tcm_qla2xxx_drop_nodeacl,
+ .fabric_init_nodeacl = tcm_qla2xxx_init_nodeacl,
.tfc_wwn_attrs = tcm_qla2xxx_wwn_attrs,
.tfc_tpg_base_attrs = tcm_qla2xxx_tpg_attrs,
@@ -2046,26 +1858,19 @@
static const struct target_core_fabric_ops tcm_qla2xxx_npiv_ops = {
.module = THIS_MODULE,
.name = "qla2xxx_npiv",
+ .node_acl_size = sizeof(struct tcm_qla2xxx_nacl),
.get_fabric_name = tcm_qla2xxx_npiv_get_fabric_name,
- .get_fabric_proto_ident = tcm_qla2xxx_get_fabric_proto_ident,
.tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn,
.tpg_get_tag = tcm_qla2xxx_get_tag,
- .tpg_get_default_depth = tcm_qla2xxx_get_default_depth,
- .tpg_get_pr_transport_id = tcm_qla2xxx_get_pr_transport_id,
- .tpg_get_pr_transport_id_len = tcm_qla2xxx_get_pr_transport_id_len,
- .tpg_parse_pr_out_transport_id = tcm_qla2xxx_parse_pr_out_transport_id,
.tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode,
.tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache,
.tpg_check_demo_mode_write_protect = tcm_qla2xxx_check_demo_mode,
.tpg_check_prod_mode_write_protect =
tcm_qla2xxx_check_prod_write_protect,
.tpg_check_demo_mode_login_only = tcm_qla2xxx_check_demo_mode_login_only,
- .tpg_alloc_fabric_acl = tcm_qla2xxx_alloc_fabric_acl,
- .tpg_release_fabric_acl = tcm_qla2xxx_release_fabric_acl,
.tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index,
.check_stop_free = tcm_qla2xxx_check_stop_free,
.release_cmd = tcm_qla2xxx_release_cmd,
- .put_session = tcm_qla2xxx_put_session,
.shutdown_session = tcm_qla2xxx_shutdown_session,
.close_session = tcm_qla2xxx_close_session,
.sess_get_index = tcm_qla2xxx_sess_get_index,
@@ -2073,7 +1878,6 @@
.write_pending = tcm_qla2xxx_write_pending,
.write_pending_status = tcm_qla2xxx_write_pending_status,
.set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs,
- .get_task_tag = tcm_qla2xxx_get_task_tag,
.get_cmd_state = tcm_qla2xxx_get_cmd_state,
.queue_data_in = tcm_qla2xxx_queue_data_in,
.queue_status = tcm_qla2xxx_queue_status,
@@ -2087,12 +1891,7 @@
.fabric_drop_wwn = tcm_qla2xxx_npiv_drop_lport,
.fabric_make_tpg = tcm_qla2xxx_npiv_make_tpg,
.fabric_drop_tpg = tcm_qla2xxx_drop_tpg,
- .fabric_post_link = NULL,
- .fabric_pre_unlink = NULL,
- .fabric_make_np = NULL,
- .fabric_drop_np = NULL,
- .fabric_make_nodeacl = tcm_qla2xxx_make_nodeacl,
- .fabric_drop_nodeacl = tcm_qla2xxx_drop_nodeacl,
+ .fabric_init_nodeacl = tcm_qla2xxx_init_nodeacl,
.tfc_wwn_attrs = tcm_qla2xxx_wwn_attrs,
.tfc_tpg_base_attrs = tcm_qla2xxx_npiv_tpg_attrs,
diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.h b/drivers/scsi/qla2xxx/tcm_qla2xxx.h
index 2329511..3bbf4cb 100644
--- a/drivers/scsi/qla2xxx/tcm_qla2xxx.h
+++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.h
@@ -13,6 +13,8 @@
#include "qla_target.h"
struct tcm_qla2xxx_nacl {
+ struct se_node_acl se_node_acl;
+
/* From libfc struct fc_rport->port_id */
u32 nport_id;
/* Binary World Wide unique Node Name for remote FC Initiator Nport */
@@ -23,8 +25,6 @@
struct qla_tgt_sess *qla_tgt_sess;
/* Pointer to TCM FC nexus */
struct se_session *nport_nexus;
- /* Returned by tcm_qla2xxx_make_nodeacl() */
- struct se_node_acl se_node_acl;
};
struct tcm_qla2xxx_tpg_attrib {
@@ -57,8 +57,6 @@
};
struct tcm_qla2xxx_lport {
- /* SCSI protocol the lport is providing */
- u8 lport_proto_id;
/* Binary World Wide unique Port Name for FC Target Lport */
u64 lport_wwpn;
/* Binary World Wide unique Port Name for FC NPIV Target Lport */
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index a3fba36..4e68b62 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -29,7 +29,6 @@
#include <scsi/scsi_tcq.h>
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
-#include <target/target_core_configfs.h>
#include <target/iscsi/iscsi_target_core.h>
#include "iscsi_target_parameters.h"
@@ -716,7 +715,7 @@
*/
if (cmd->se_cmd.se_tfo != NULL) {
pr_debug("iscsi reject: calling target_put_sess_cmd >>>>>>\n");
- target_put_sess_cmd(conn->sess->se_sess, &cmd->se_cmd);
+ target_put_sess_cmd(&cmd->se_cmd);
}
return -1;
}
@@ -1002,13 +1001,15 @@
hdr->cmdsn, be32_to_cpu(hdr->data_length), payload_length,
conn->cid);
- target_get_sess_cmd(conn->sess->se_sess, &cmd->se_cmd, true);
+ target_get_sess_cmd(&cmd->se_cmd, true);
cmd->sense_reason = transport_lookup_cmd_lun(&cmd->se_cmd,
scsilun_to_int(&hdr->lun));
if (cmd->sense_reason)
goto attach_cmd;
+ /* only used for printks or comparing with ->ref_task_tag */
+ cmd->se_cmd.tag = (__force u32)cmd->init_task_tag;
cmd->sense_reason = target_setup_cmd_from_cdb(&cmd->se_cmd, hdr->cdb);
if (cmd->sense_reason) {
if (cmd->sense_reason == TCM_OUT_OF_RESOURCES) {
@@ -1068,7 +1069,7 @@
if (cmdsn_ret == CMDSN_ERROR_CANNOT_RECOVER)
return -1;
else if (cmdsn_ret == CMDSN_LOWER_THAN_EXP) {
- target_put_sess_cmd(conn->sess->se_sess, &cmd->se_cmd);
+ target_put_sess_cmd(&cmd->se_cmd);
return 0;
}
}
@@ -1084,7 +1085,7 @@
if (!cmd->sense_reason)
return 0;
- target_put_sess_cmd(conn->sess->se_sess, &cmd->se_cmd);
+ target_put_sess_cmd(&cmd->se_cmd);
return 0;
}
@@ -1115,7 +1116,6 @@
iscsit_get_immediate_data(struct iscsi_cmd *cmd, struct iscsi_scsi_req *hdr,
bool dump_payload)
{
- struct iscsi_conn *conn = cmd->conn;
int cmdsn_ret = 0, immed_ret = IMMEDIATE_DATA_NORMAL_OPERATION;
/*
* Special case for Unsupported SAM WRITE Opcodes and ImmediateData=Yes.
@@ -1142,7 +1142,7 @@
rc = iscsit_dump_data_payload(cmd->conn,
cmd->first_burst_len, 1);
- target_put_sess_cmd(conn->sess->se_sess, &cmd->se_cmd);
+ target_put_sess_cmd(&cmd->se_cmd);
return rc;
} else if (cmd->unsolicited_data)
iscsit_set_unsoliticed_dataout(cmd);
@@ -1811,7 +1811,7 @@
conn->sess->se_sess, 0, DMA_NONE,
TCM_SIMPLE_TAG, cmd->sense_buffer + 2);
- target_get_sess_cmd(conn->sess->se_sess, &cmd->se_cmd, true);
+ target_get_sess_cmd(&cmd->se_cmd, true);
sess_ref = true;
switch (function) {
@@ -1953,7 +1953,7 @@
*/
if (sess_ref) {
pr_debug("Handle TMR, using sess_ref=true check\n");
- target_put_sess_cmd(conn->sess->se_sess, &cmd->se_cmd);
+ target_put_sess_cmd(&cmd->se_cmd);
}
iscsit_add_cmd_to_response_queue(cmd, conn, cmd->i_state);
@@ -2737,11 +2737,7 @@
cmd->iov_data_count = iov_count;
cmd->tx_size = tx_size;
- /* sendpage is preferred but can't insert markers */
- if (!conn->conn_ops->IFMarker)
- ret = iscsit_fe_sendpage_sg(cmd, conn);
- else
- ret = iscsit_send_tx_data(cmd, conn, 0);
+ ret = iscsit_fe_sendpage_sg(cmd, conn);
iscsit_unmap_iovec(cmd);
@@ -4073,17 +4069,9 @@
" opcode while ERL=0, closing iSCSI connection.\n");
return -1;
}
- if (!conn->conn_ops->OFMarker) {
- pr_err("Unable to recover from unknown"
- " opcode while OFMarker=No, closing iSCSI"
- " connection.\n");
- return -1;
- }
- if (iscsit_recover_from_unknown_opcode(conn) < 0) {
- pr_err("Unable to recover from unknown"
- " opcode, closing iSCSI connection.\n");
- return -1;
- }
+ pr_err("Unable to recover from unknown opcode while OFMarker=No,"
+ " closing iSCSI connection.\n");
+ ret = -1;
break;
}
diff --git a/drivers/target/iscsi/iscsi_target_configfs.c b/drivers/target/iscsi/iscsi_target_configfs.c
index 469fce4..c1898c8 100644
--- a/drivers/target/iscsi/iscsi_target_configfs.c
+++ b/drivers/target/iscsi/iscsi_target_configfs.c
@@ -24,7 +24,6 @@
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
#include <target/target_core_fabric_configfs.h>
-#include <target/target_core_configfs.h>
#include <target/configfs_macros.h>
#include <target/iscsi/iscsi_transport.h>
@@ -860,57 +859,19 @@
NULL,
};
-static struct se_node_acl *lio_tpg_alloc_fabric_acl(
- struct se_portal_group *se_tpg)
+static int lio_target_init_nodeacl(struct se_node_acl *se_nacl,
+ const char *name)
{
- struct iscsi_node_acl *acl;
-
- acl = kzalloc(sizeof(struct iscsi_node_acl), GFP_KERNEL);
- if (!acl) {
- pr_err("Unable to allocate memory for struct iscsi_node_acl\n");
- return NULL;
- }
-
- return &acl->se_node_acl;
-}
-
-static struct se_node_acl *lio_target_make_nodeacl(
- struct se_portal_group *se_tpg,
- struct config_group *group,
- const char *name)
-{
- struct config_group *stats_cg;
- struct iscsi_node_acl *acl;
- struct se_node_acl *se_nacl_new, *se_nacl;
- struct iscsi_portal_group *tpg = container_of(se_tpg,
- struct iscsi_portal_group, tpg_se_tpg);
- u32 cmdsn_depth;
-
- se_nacl_new = lio_tpg_alloc_fabric_acl(se_tpg);
- if (!se_nacl_new)
- return ERR_PTR(-ENOMEM);
-
- cmdsn_depth = tpg->tpg_attrib.default_cmdsn_depth;
- /*
- * se_nacl_new may be released by core_tpg_add_initiator_node_acl()
- * when converting a NdoeACL from demo mode -> explict
- */
- se_nacl = core_tpg_add_initiator_node_acl(se_tpg, se_nacl_new,
- name, cmdsn_depth);
- if (IS_ERR(se_nacl))
- return se_nacl;
-
- acl = container_of(se_nacl, struct iscsi_node_acl, se_node_acl);
- stats_cg = &se_nacl->acl_fabric_stat_group;
+ struct iscsi_node_acl *acl =
+ container_of(se_nacl, struct iscsi_node_acl, se_node_acl);
+ struct config_group *stats_cg = &se_nacl->acl_fabric_stat_group;
stats_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2,
GFP_KERNEL);
if (!stats_cg->default_groups) {
pr_err("Unable to allocate memory for"
" stats_cg->default_groups\n");
- core_tpg_del_initiator_node_acl(se_tpg, se_nacl, 1);
- kfree(acl);
- return ERR_PTR(-ENOMEM);
+ return -ENOMEM;
}
stats_cg->default_groups[0] = &acl->node_stat_grps.iscsi_sess_stats_group;
@@ -918,13 +879,11 @@
config_group_init_type_name(&acl->node_stat_grps.iscsi_sess_stats_group,
"iscsi_sess_stats", &iscsi_stat_sess_cit);
- return se_nacl;
+ return 0;
}
-static void lio_target_drop_nodeacl(
- struct se_node_acl *se_nacl)
+static void lio_target_cleanup_nodeacl( struct se_node_acl *se_nacl)
{
- struct se_portal_group *se_tpg = se_nacl->se_tpg;
struct iscsi_node_acl *acl = container_of(se_nacl,
struct iscsi_node_acl, se_node_acl);
struct config_item *df_item;
@@ -938,9 +897,6 @@
config_item_put(df_item);
}
kfree(stats_cg->default_groups);
-
- core_tpg_del_initiator_node_acl(se_tpg, se_nacl, 1);
- kfree(acl);
}
/* End items for lio_target_acl_cit */
@@ -1463,8 +1419,7 @@
if (!tpg)
return NULL;
- ret = core_tpg_register(&iscsi_ops, wwn, &tpg->tpg_se_tpg,
- tpg, TRANSPORT_TPG_TYPE_NORMAL);
+ ret = core_tpg_register(wwn, &tpg->tpg_se_tpg, SCSI_PROTOCOL_ISCSI);
if (ret < 0)
return NULL;
@@ -1735,14 +1690,6 @@
return "iSCSI";
}
-static u32 iscsi_get_task_tag(struct se_cmd *se_cmd)
-{
- struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
-
- /* only used for printks or comparism with ->ref_task_tag */
- return (__force u32)cmd->init_task_tag;
-}
-
static int iscsi_get_cmd_state(struct se_cmd *se_cmd)
{
struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
@@ -1832,78 +1779,58 @@
cmd->conn->conn_transport->iscsit_aborted_task(cmd->conn, cmd);
}
+static inline struct iscsi_portal_group *iscsi_tpg(struct se_portal_group *se_tpg)
+{
+ return container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg);
+}
+
static char *lio_tpg_get_endpoint_wwn(struct se_portal_group *se_tpg)
{
- struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
-
- return &tpg->tpg_tiqn->tiqn[0];
+ return iscsi_tpg(se_tpg)->tpg_tiqn->tiqn;
}
static u16 lio_tpg_get_tag(struct se_portal_group *se_tpg)
{
- struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
-
- return tpg->tpgt;
+ return iscsi_tpg(se_tpg)->tpgt;
}
static u32 lio_tpg_get_default_depth(struct se_portal_group *se_tpg)
{
- struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
-
- return tpg->tpg_attrib.default_cmdsn_depth;
+ return iscsi_tpg(se_tpg)->tpg_attrib.default_cmdsn_depth;
}
static int lio_tpg_check_demo_mode(struct se_portal_group *se_tpg)
{
- struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
-
- return tpg->tpg_attrib.generate_node_acls;
+ return iscsi_tpg(se_tpg)->tpg_attrib.generate_node_acls;
}
static int lio_tpg_check_demo_mode_cache(struct se_portal_group *se_tpg)
{
- struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
-
- return tpg->tpg_attrib.cache_dynamic_acls;
+ return iscsi_tpg(se_tpg)->tpg_attrib.cache_dynamic_acls;
}
static int lio_tpg_check_demo_mode_write_protect(
struct se_portal_group *se_tpg)
{
- struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
-
- return tpg->tpg_attrib.demo_mode_write_protect;
+ return iscsi_tpg(se_tpg)->tpg_attrib.demo_mode_write_protect;
}
static int lio_tpg_check_prod_mode_write_protect(
struct se_portal_group *se_tpg)
{
- struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
-
- return tpg->tpg_attrib.prod_mode_write_protect;
+ return iscsi_tpg(se_tpg)->tpg_attrib.prod_mode_write_protect;
}
static int lio_tpg_check_prot_fabric_only(
struct se_portal_group *se_tpg)
{
- struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
/*
* Only report fabric_prot_type if t10_pi has also been enabled
* for incoming ib_isert sessions.
*/
- if (!tpg->tpg_attrib.t10_pi)
+ if (!iscsi_tpg(se_tpg)->tpg_attrib.t10_pi)
return 0;
-
- return tpg->tpg_attrib.fabric_prot_type;
-}
-
-static void lio_tpg_release_fabric_acl(
- struct se_portal_group *se_tpg,
- struct se_node_acl *se_acl)
-{
- struct iscsi_node_acl *acl = container_of(se_acl,
- struct iscsi_node_acl, se_node_acl);
- kfree(acl);
+ return iscsi_tpg(se_tpg)->tpg_attrib.fabric_prot_type;
}
/*
@@ -1948,9 +1875,7 @@
static u32 lio_tpg_get_inst_index(struct se_portal_group *se_tpg)
{
- struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
-
- return tpg->tpg_tiqn->tiqn_index;
+ return iscsi_tpg(se_tpg)->tpg_tiqn->tiqn_index;
}
static void lio_set_default_node_attributes(struct se_node_acl *se_acl)
@@ -1967,7 +1892,7 @@
static int lio_check_stop_free(struct se_cmd *se_cmd)
{
- return target_put_sess_cmd(se_cmd->se_sess, se_cmd);
+ return target_put_sess_cmd(se_cmd);
}
static void lio_release_cmd(struct se_cmd *se_cmd)
@@ -1981,14 +1906,11 @@
const struct target_core_fabric_ops iscsi_ops = {
.module = THIS_MODULE,
.name = "iscsi",
+ .node_acl_size = sizeof(struct iscsi_node_acl),
.get_fabric_name = iscsi_get_fabric_name,
- .get_fabric_proto_ident = iscsi_get_fabric_proto_ident,
.tpg_get_wwn = lio_tpg_get_endpoint_wwn,
.tpg_get_tag = lio_tpg_get_tag,
.tpg_get_default_depth = lio_tpg_get_default_depth,
- .tpg_get_pr_transport_id = iscsi_get_pr_transport_id,
- .tpg_get_pr_transport_id_len = iscsi_get_pr_transport_id_len,
- .tpg_parse_pr_out_transport_id = iscsi_parse_pr_out_transport_id,
.tpg_check_demo_mode = lio_tpg_check_demo_mode,
.tpg_check_demo_mode_cache = lio_tpg_check_demo_mode_cache,
.tpg_check_demo_mode_write_protect =
@@ -1996,8 +1918,6 @@
.tpg_check_prod_mode_write_protect =
lio_tpg_check_prod_mode_write_protect,
.tpg_check_prot_fabric_only = &lio_tpg_check_prot_fabric_only,
- .tpg_alloc_fabric_acl = lio_tpg_alloc_fabric_acl,
- .tpg_release_fabric_acl = lio_tpg_release_fabric_acl,
.tpg_get_inst_index = lio_tpg_get_inst_index,
.check_stop_free = lio_check_stop_free,
.release_cmd = lio_release_cmd,
@@ -2008,7 +1928,6 @@
.write_pending = lio_write_pending,
.write_pending_status = lio_write_pending_status,
.set_default_node_attributes = lio_set_default_node_attributes,
- .get_task_tag = iscsi_get_task_tag,
.get_cmd_state = iscsi_get_cmd_state,
.queue_data_in = lio_queue_data_in,
.queue_status = lio_queue_status,
@@ -2020,8 +1939,8 @@
.fabric_drop_tpg = lio_target_tiqn_deltpg,
.fabric_make_np = lio_target_call_addnptotpg,
.fabric_drop_np = lio_target_call_delnpfromtpg,
- .fabric_make_nodeacl = lio_target_make_nodeacl,
- .fabric_drop_nodeacl = lio_target_drop_nodeacl,
+ .fabric_init_nodeacl = lio_target_init_nodeacl,
+ .fabric_cleanup_nodeacl = lio_target_cleanup_nodeacl,
.tfc_discovery_attrs = lio_target_discovery_auth_attrs,
.tfc_wwn_attrs = lio_target_wwn_attrs,
diff --git a/drivers/target/iscsi/iscsi_target_erl0.c b/drivers/target/iscsi/iscsi_target_erl0.c
index 959a14c..210f6e4 100644
--- a/drivers/target/iscsi/iscsi_target_erl0.c
+++ b/drivers/target/iscsi/iscsi_target_erl0.c
@@ -956,56 +956,3 @@
iscsit_handle_connection_cleanup(conn);
}
-
-/*
- * This is the simple function that makes the magic of
- * sync and steering happen in the follow paradoxical order:
- *
- * 0) Receive conn->of_marker (bytes left until next OFMarker)
- * bytes into an offload buffer. When we pass the exact number
- * of bytes in conn->of_marker, iscsit_dump_data_payload() and hence
- * rx_data() will automatically receive the identical u32 marker
- * values and store it in conn->of_marker_offset;
- * 1) Now conn->of_marker_offset will contain the offset to the start
- * of the next iSCSI PDU. Dump these remaining bytes into another
- * offload buffer.
- * 2) We are done!
- * Next byte in the TCP stream will contain the next iSCSI PDU!
- * Cool Huh?!
- */
-int iscsit_recover_from_unknown_opcode(struct iscsi_conn *conn)
-{
- /*
- * Make sure the remaining bytes to next maker is a sane value.
- */
- if (conn->of_marker > (conn->conn_ops->OFMarkInt * 4)) {
- pr_err("Remaining bytes to OFMarker: %u exceeds"
- " OFMarkInt bytes: %u.\n", conn->of_marker,
- conn->conn_ops->OFMarkInt * 4);
- return -1;
- }
-
- pr_debug("Advancing %u bytes in TCP stream to get to the"
- " next OFMarker.\n", conn->of_marker);
-
- if (iscsit_dump_data_payload(conn, conn->of_marker, 0) < 0)
- return -1;
-
- /*
- * Make sure the offset marker we retrived is a valid value.
- */
- if (conn->of_marker_offset > (ISCSI_HDR_LEN + (ISCSI_CRC_LEN * 2) +
- conn->conn_ops->MaxRecvDataSegmentLength)) {
- pr_err("OfMarker offset value: %u exceeds limit.\n",
- conn->of_marker_offset);
- return -1;
- }
-
- pr_debug("Discarding %u bytes of TCP stream to get to the"
- " next iSCSI Opcode.\n", conn->of_marker_offset);
-
- if (iscsit_dump_data_payload(conn, conn->of_marker_offset, 0) < 0)
- return -1;
-
- return 0;
-}
diff --git a/drivers/target/iscsi/iscsi_target_erl0.h b/drivers/target/iscsi/iscsi_target_erl0.h
index 21acc9a..a9e2f94 100644
--- a/drivers/target/iscsi/iscsi_target_erl0.h
+++ b/drivers/target/iscsi/iscsi_target_erl0.h
@@ -10,6 +10,5 @@
extern void iscsit_cause_connection_reinstatement(struct iscsi_conn *, int);
extern void iscsit_fall_back_to_erl0(struct iscsi_session *);
extern void iscsit_take_action_for_connection_exit(struct iscsi_conn *);
-extern int iscsit_recover_from_unknown_opcode(struct iscsi_conn *);
#endif /*** ISCSI_TARGET_ERL0_H ***/
diff --git a/drivers/target/iscsi/iscsi_target_login.c b/drivers/target/iscsi/iscsi_target_login.c
index 70d799d..3d0fe4f 100644
--- a/drivers/target/iscsi/iscsi_target_login.c
+++ b/drivers/target/iscsi/iscsi_target_login.c
@@ -410,8 +410,6 @@
if (iscsi_change_param_sprintf(conn, "ErrorRecoveryLevel=%d", na->default_erl))
return -1;
- if (iscsi_login_disable_FIM_keys(conn->param_list, conn) < 0)
- return -1;
/*
* Set RDMAExtensions=Yes by default for iSER enabled network portals
*/
@@ -477,59 +475,6 @@
return 0;
}
-/*
- * Remove PSTATE_NEGOTIATE for the four FIM related keys.
- * The Initiator node will be able to enable FIM by proposing them itself.
- */
-int iscsi_login_disable_FIM_keys(
- struct iscsi_param_list *param_list,
- struct iscsi_conn *conn)
-{
- struct iscsi_param *param;
-
- param = iscsi_find_param_from_key("OFMarker", param_list);
- if (!param) {
- pr_err("iscsi_find_param_from_key() for"
- " OFMarker failed\n");
- iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_TARGET_ERR,
- ISCSI_LOGIN_STATUS_NO_RESOURCES);
- return -1;
- }
- param->state &= ~PSTATE_NEGOTIATE;
-
- param = iscsi_find_param_from_key("OFMarkInt", param_list);
- if (!param) {
- pr_err("iscsi_find_param_from_key() for"
- " IFMarker failed\n");
- iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_TARGET_ERR,
- ISCSI_LOGIN_STATUS_NO_RESOURCES);
- return -1;
- }
- param->state &= ~PSTATE_NEGOTIATE;
-
- param = iscsi_find_param_from_key("IFMarker", param_list);
- if (!param) {
- pr_err("iscsi_find_param_from_key() for"
- " IFMarker failed\n");
- iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_TARGET_ERR,
- ISCSI_LOGIN_STATUS_NO_RESOURCES);
- return -1;
- }
- param->state &= ~PSTATE_NEGOTIATE;
-
- param = iscsi_find_param_from_key("IFMarkInt", param_list);
- if (!param) {
- pr_err("iscsi_find_param_from_key() for"
- " IFMarker failed\n");
- iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_TARGET_ERR,
- ISCSI_LOGIN_STATUS_NO_RESOURCES);
- return -1;
- }
- param->state &= ~PSTATE_NEGOTIATE;
-
- return 0;
-}
-
static int iscsi_login_non_zero_tsih_s1(
struct iscsi_conn *conn,
unsigned char *buf)
@@ -616,7 +561,7 @@
if (iscsi_change_param_sprintf(conn, "TargetPortalGroupTag=%hu", sess->tpg->tpgt))
return -1;
- return iscsi_login_disable_FIM_keys(conn->param_list, conn);
+ return 0;
}
int iscsi_login_post_auth_non_zero_tsih(
@@ -765,7 +710,6 @@
conn->conn_state = TARG_CONN_STATE_LOGGED_IN;
iscsi_set_connection_parameters(conn->conn_ops, conn->param_list);
- iscsit_set_sync_and_steering_values(conn);
/*
* SCSI Initiator -> SCSI Target Port Mapping
*/
diff --git a/drivers/target/iscsi/iscsi_target_login.h b/drivers/target/iscsi/iscsi_target_login.h
index 29d0983..1c73580 100644
--- a/drivers/target/iscsi/iscsi_target_login.h
+++ b/drivers/target/iscsi/iscsi_target_login.h
@@ -16,6 +16,5 @@
extern void iscsi_target_login_sess_out(struct iscsi_conn *, struct iscsi_np *,
bool, bool);
extern int iscsi_target_login_thread(void *);
-extern int iscsi_login_disable_FIM_keys(struct iscsi_param_list *, struct iscsi_conn *);
#endif /*** ISCSI_TARGET_LOGIN_H ***/
diff --git a/drivers/target/iscsi/iscsi_target_parameters.c b/drivers/target/iscsi/iscsi_target_parameters.c
index d4f9e96..e8a52f7 100644
--- a/drivers/target/iscsi/iscsi_target_parameters.c
+++ b/drivers/target/iscsi/iscsi_target_parameters.c
@@ -34,13 +34,6 @@
iov.iov_len = length;
iov.iov_base = buf;
- /*
- * Initial Marker-less Interval.
- * Add the values regardless of IFMarker/OFMarker, considering
- * it may not be negoitated yet.
- */
- conn->of_marker += length;
-
rx_got = rx_data(conn, &iov, 1, length);
if (rx_got != length) {
pr_err("rx_data returned %d, expecting %d.\n",
@@ -72,13 +65,6 @@
iov_cnt++;
}
- /*
- * Initial Marker-less Interval.
- * Add the values regardless of IFMarker/OFMarker, considering
- * it may not be negoitated yet.
- */
- conn->if_marker += length;
-
tx_sent = tx_data(conn, &iov[0], iov_cnt, length);
if (tx_sent != length) {
pr_err("tx_data returned %d, expecting %d.\n",
@@ -97,12 +83,6 @@
"CRC32C" : "None");
pr_debug("MaxRecvDataSegmentLength: %u\n",
conn_ops->MaxRecvDataSegmentLength);
- pr_debug("OFMarker: %s\n", (conn_ops->OFMarker) ? "Yes" : "No");
- pr_debug("IFMarker: %s\n", (conn_ops->IFMarker) ? "Yes" : "No");
- if (conn_ops->OFMarker)
- pr_debug("OFMarkInt: %u\n", conn_ops->OFMarkInt);
- if (conn_ops->IFMarker)
- pr_debug("IFMarkInt: %u\n", conn_ops->IFMarkInt);
}
void iscsi_dump_sess_ops(struct iscsi_sess_ops *sess_ops)
@@ -194,10 +174,6 @@
case TYPERANGE_DIGEST:
param->type = TYPE_VALUE_LIST | TYPE_STRING;
break;
- case TYPERANGE_MARKINT:
- param->type = TYPE_NUMBER_RANGE;
- param->type_range |= TYPERANGE_1_TO_65535;
- break;
case TYPERANGE_ISCSINAME:
case TYPERANGE_SESSIONTYPE:
case TYPERANGE_TARGETADDRESS:
@@ -422,13 +398,13 @@
param = iscsi_set_default_param(pl, IFMARKINT, INITIAL_IFMARKINT,
PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
- TYPERANGE_MARKINT, USE_INITIAL_ONLY);
+ TYPERANGE_UTF8, USE_INITIAL_ONLY);
if (!param)
goto out;
param = iscsi_set_default_param(pl, OFMARKINT, INITIAL_OFMARKINT,
PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
- TYPERANGE_MARKINT, USE_INITIAL_ONLY);
+ TYPERANGE_UTF8, USE_INITIAL_ONLY);
if (!param)
goto out;
/*
@@ -524,9 +500,9 @@
} else if (!strcmp(param->name, OFMARKER)) {
SET_PSTATE_NEGOTIATE(param);
} else if (!strcmp(param->name, IFMARKINT)) {
- SET_PSTATE_NEGOTIATE(param);
+ SET_PSTATE_REJECT(param);
} else if (!strcmp(param->name, OFMARKINT)) {
- SET_PSTATE_NEGOTIATE(param);
+ SET_PSTATE_REJECT(param);
} else if (!strcmp(param->name, RDMAEXTENSIONS)) {
if (iser)
SET_PSTATE_NEGOTIATE(param);
@@ -906,91 +882,6 @@
return 0;
}
-static int iscsi_check_numerical_range_value(struct iscsi_param *param, char *value)
-{
- char *left_val_ptr = NULL, *right_val_ptr = NULL;
- char *tilde_ptr = NULL;
- u32 left_val, right_val, local_left_val;
-
- if (strcmp(param->name, IFMARKINT) &&
- strcmp(param->name, OFMARKINT)) {
- pr_err("Only parameters \"%s\" or \"%s\" may contain a"
- " numerical range value.\n", IFMARKINT, OFMARKINT);
- return -1;
- }
-
- if (IS_PSTATE_PROPOSER(param))
- return 0;
-
- tilde_ptr = strchr(value, '~');
- if (!tilde_ptr) {
- pr_err("Unable to locate numerical range indicator"
- " \"~\" for \"%s\".\n", param->name);
- return -1;
- }
- *tilde_ptr = '\0';
-
- left_val_ptr = value;
- right_val_ptr = value + strlen(left_val_ptr) + 1;
-
- if (iscsi_check_numerical_value(param, left_val_ptr) < 0)
- return -1;
- if (iscsi_check_numerical_value(param, right_val_ptr) < 0)
- return -1;
-
- left_val = simple_strtoul(left_val_ptr, NULL, 0);
- right_val = simple_strtoul(right_val_ptr, NULL, 0);
- *tilde_ptr = '~';
-
- if (right_val < left_val) {
- pr_err("Numerical range for parameter \"%s\" contains"
- " a right value which is less than the left.\n",
- param->name);
- return -1;
- }
-
- /*
- * For now, enforce reasonable defaults for [I,O]FMarkInt.
- */
- tilde_ptr = strchr(param->value, '~');
- if (!tilde_ptr) {
- pr_err("Unable to locate numerical range indicator"
- " \"~\" for \"%s\".\n", param->name);
- return -1;
- }
- *tilde_ptr = '\0';
-
- left_val_ptr = param->value;
- right_val_ptr = param->value + strlen(left_val_ptr) + 1;
-
- local_left_val = simple_strtoul(left_val_ptr, NULL, 0);
- *tilde_ptr = '~';
-
- if (param->set_param) {
- if ((left_val < local_left_val) ||
- (right_val < local_left_val)) {
- pr_err("Passed value range \"%u~%u\" is below"
- " minimum left value \"%u\" for key \"%s\","
- " rejecting.\n", left_val, right_val,
- local_left_val, param->name);
- return -1;
- }
- } else {
- if ((left_val < local_left_val) &&
- (right_val < local_left_val)) {
- pr_err("Received value range \"%u~%u\" is"
- " below minimum left value \"%u\" for key"
- " \"%s\", rejecting.\n", left_val, right_val,
- local_left_val, param->name);
- SET_PSTATE_REJECT(param);
- if (iscsi_update_param_value(param, REJECT) < 0)
- return -1;
- }
- }
-
- return 0;
-}
-
static int iscsi_check_string_or_list_value(struct iscsi_param *param, char *value)
{
if (IS_PSTATE_PROPOSER(param))
@@ -1027,33 +918,6 @@
return 0;
}
-/*
- * This function is used to pick a value range number, currently just
- * returns the lesser of both right values.
- */
-static char *iscsi_get_value_from_number_range(
- struct iscsi_param *param,
- char *value)
-{
- char *end_ptr, *tilde_ptr1 = NULL, *tilde_ptr2 = NULL;
- u32 acceptor_right_value, proposer_right_value;
-
- tilde_ptr1 = strchr(value, '~');
- if (!tilde_ptr1)
- return NULL;
- *tilde_ptr1++ = '\0';
- proposer_right_value = simple_strtoul(tilde_ptr1, &end_ptr, 0);
-
- tilde_ptr2 = strchr(param->value, '~');
- if (!tilde_ptr2)
- return NULL;
- *tilde_ptr2++ = '\0';
- acceptor_right_value = simple_strtoul(tilde_ptr2, &end_ptr, 0);
-
- return (acceptor_right_value >= proposer_right_value) ?
- tilde_ptr1 : tilde_ptr2;
-}
-
static char *iscsi_check_valuelist_for_support(
struct iscsi_param *param,
char *value)
@@ -1103,7 +967,7 @@
struct iscsi_conn *conn)
{
u8 acceptor_boolean_value = 0, proposer_boolean_value = 0;
- char *negoitated_value = NULL;
+ char *negotiated_value = NULL;
if (IS_PSTATE_ACCEPTOR(param)) {
pr_err("Received key \"%s\" twice, protocol error.\n",
@@ -1203,24 +1067,16 @@
pr_debug("Updated %s to target MXDSL value: %s\n",
param->name, param->value);
}
-
- } else if (IS_TYPE_NUMBER_RANGE(param)) {
- negoitated_value = iscsi_get_value_from_number_range(
- param, value);
- if (!negoitated_value)
- return -1;
- if (iscsi_update_param_value(param, negoitated_value) < 0)
- return -1;
} else if (IS_TYPE_VALUE_LIST(param)) {
- negoitated_value = iscsi_check_valuelist_for_support(
+ negotiated_value = iscsi_check_valuelist_for_support(
param, value);
- if (!negoitated_value) {
+ if (!negotiated_value) {
pr_err("Proposer's value list \"%s\" contains"
" no valid values from Acceptor's value list"
" \"%s\".\n", value, param->value);
return -1;
}
- if (iscsi_update_param_value(param, negoitated_value) < 0)
+ if (iscsi_update_param_value(param, negotiated_value) < 0)
return -1;
} else if (IS_PHASE_DECLARATIVE(param)) {
if (iscsi_update_param_value(param, value) < 0)
@@ -1239,47 +1095,7 @@
return -1;
}
- if (IS_TYPE_NUMBER_RANGE(param)) {
- u32 left_val = 0, right_val = 0, recieved_value = 0;
- char *left_val_ptr = NULL, *right_val_ptr = NULL;
- char *tilde_ptr = NULL;
-
- if (!strcmp(value, IRRELEVANT) || !strcmp(value, REJECT)) {
- if (iscsi_update_param_value(param, value) < 0)
- return -1;
- return 0;
- }
-
- tilde_ptr = strchr(value, '~');
- if (tilde_ptr) {
- pr_err("Illegal \"~\" in response for \"%s\".\n",
- param->name);
- return -1;
- }
- tilde_ptr = strchr(param->value, '~');
- if (!tilde_ptr) {
- pr_err("Unable to locate numerical range"
- " indicator \"~\" for \"%s\".\n", param->name);
- return -1;
- }
- *tilde_ptr = '\0';
-
- left_val_ptr = param->value;
- right_val_ptr = param->value + strlen(left_val_ptr) + 1;
- left_val = simple_strtoul(left_val_ptr, NULL, 0);
- right_val = simple_strtoul(right_val_ptr, NULL, 0);
- recieved_value = simple_strtoul(value, NULL, 0);
-
- *tilde_ptr = '~';
-
- if ((recieved_value < left_val) ||
- (recieved_value > right_val)) {
- pr_err("Illegal response \"%s=%u\", value must"
- " be between %u and %u.\n", param->name,
- recieved_value, left_val, right_val);
- return -1;
- }
- } else if (IS_TYPE_VALUE_LIST(param)) {
+ if (IS_TYPE_VALUE_LIST(param)) {
char *comma_ptr = NULL, *tmp_ptr = NULL;
comma_ptr = strchr(value, ',');
@@ -1361,9 +1177,6 @@
} else if (IS_TYPE_NUMBER(param)) {
if (iscsi_check_numerical_value(param, value) < 0)
return -1;
- } else if (IS_TYPE_NUMBER_RANGE(param)) {
- if (iscsi_check_numerical_range_value(param, value) < 0)
- return -1;
} else if (IS_TYPE_STRING(param) || IS_TYPE_VALUE_LIST(param)) {
if (iscsi_check_string_or_list_value(param, value) < 0)
return -1;
@@ -1483,8 +1296,6 @@
char *tmpptr;
u8 DataSequenceInOrder = 0;
u8 ErrorRecoveryLevel = 0, SessionType = 0;
- u8 IFMarker = 0, OFMarker = 0;
- u8 IFMarkInt_Reject = 1, OFMarkInt_Reject = 1;
u32 FirstBurstLength = 0, MaxBurstLength = 0;
struct iscsi_param *param = NULL;
@@ -1503,28 +1314,12 @@
if (!strcmp(param->name, MAXBURSTLENGTH))
MaxBurstLength = simple_strtoul(param->value,
&tmpptr, 0);
- if (!strcmp(param->name, IFMARKER))
- if (!strcmp(param->value, YES))
- IFMarker = 1;
- if (!strcmp(param->name, OFMARKER))
- if (!strcmp(param->value, YES))
- OFMarker = 1;
- if (!strcmp(param->name, IFMARKINT))
- if (!strcmp(param->value, REJECT))
- IFMarkInt_Reject = 1;
- if (!strcmp(param->name, OFMARKINT))
- if (!strcmp(param->value, REJECT))
- OFMarkInt_Reject = 1;
}
list_for_each_entry(param, ¶m_list->param_list, p_list) {
if (!(param->phase & phase))
continue;
- if (!SessionType && (!IS_PSTATE_ACCEPTOR(param) &&
- (strcmp(param->name, IFMARKER) &&
- strcmp(param->name, OFMARKER) &&
- strcmp(param->name, IFMARKINT) &&
- strcmp(param->name, OFMARKINT))))
+ if (!SessionType && !IS_PSTATE_ACCEPTOR(param))
continue;
if (!strcmp(param->name, MAXOUTSTANDINGR2T) &&
DataSequenceInOrder && (ErrorRecoveryLevel > 0)) {
@@ -1556,38 +1351,6 @@
param->name, param->value);
}
}
- if (!strcmp(param->name, IFMARKER) && IFMarkInt_Reject) {
- if (iscsi_update_param_value(param, NO) < 0)
- return -1;
- IFMarker = 0;
- pr_debug("Reset \"%s\" to \"%s\".\n",
- param->name, param->value);
- }
- if (!strcmp(param->name, OFMARKER) && OFMarkInt_Reject) {
- if (iscsi_update_param_value(param, NO) < 0)
- return -1;
- OFMarker = 0;
- pr_debug("Reset \"%s\" to \"%s\".\n",
- param->name, param->value);
- }
- if (!strcmp(param->name, IFMARKINT) && !IFMarker) {
- if (!strcmp(param->value, REJECT))
- continue;
- param->state &= ~PSTATE_NEGOTIATE;
- if (iscsi_update_param_value(param, IRRELEVANT) < 0)
- return -1;
- pr_debug("Reset \"%s\" to \"%s\".\n",
- param->name, param->value);
- }
- if (!strcmp(param->name, OFMARKINT) && !OFMarker) {
- if (!strcmp(param->value, REJECT))
- continue;
- param->state &= ~PSTATE_NEGOTIATE;
- if (iscsi_update_param_value(param, IRRELEVANT) < 0)
- return -1;
- pr_debug("Reset \"%s\" to \"%s\".\n",
- param->name, param->value);
- }
}
return 0;
@@ -1824,24 +1587,6 @@
*/
pr_debug("MaxRecvDataSegmentLength: %u\n",
ops->MaxRecvDataSegmentLength);
- } else if (!strcmp(param->name, OFMARKER)) {
- ops->OFMarker = !strcmp(param->value, YES);
- pr_debug("OFMarker: %s\n",
- param->value);
- } else if (!strcmp(param->name, IFMARKER)) {
- ops->IFMarker = !strcmp(param->value, YES);
- pr_debug("IFMarker: %s\n",
- param->value);
- } else if (!strcmp(param->name, OFMARKINT)) {
- ops->OFMarkInt =
- simple_strtoul(param->value, &tmpptr, 0);
- pr_debug("OFMarkInt: %s\n",
- param->value);
- } else if (!strcmp(param->name, IFMARKINT)) {
- ops->IFMarkInt =
- simple_strtoul(param->value, &tmpptr, 0);
- pr_debug("IFMarkInt: %s\n",
- param->value);
} else if (!strcmp(param->name, INITIATORRECVDATASEGMENTLENGTH)) {
ops->InitiatorRecvDataSegmentLength =
simple_strtoul(param->value, &tmpptr, 0);
diff --git a/drivers/target/iscsi/iscsi_target_parameters.h b/drivers/target/iscsi/iscsi_target_parameters.h
index a47046a..a0751e3 100644
--- a/drivers/target/iscsi/iscsi_target_parameters.h
+++ b/drivers/target/iscsi/iscsi_target_parameters.h
@@ -138,8 +138,8 @@
#define INITIAL_SESSIONTYPE NORMAL
#define INITIAL_IFMARKER NO
#define INITIAL_OFMARKER NO
-#define INITIAL_IFMARKINT "2048~65535"
-#define INITIAL_OFMARKINT "2048~65535"
+#define INITIAL_IFMARKINT REJECT
+#define INITIAL_OFMARKINT REJECT
/*
* Initial values for iSER parameters following RFC-5046 Section 6
@@ -239,10 +239,9 @@
#define TYPERANGE_AUTH 0x0200
#define TYPERANGE_DIGEST 0x0400
#define TYPERANGE_ISCSINAME 0x0800
-#define TYPERANGE_MARKINT 0x1000
-#define TYPERANGE_SESSIONTYPE 0x2000
-#define TYPERANGE_TARGETADDRESS 0x4000
-#define TYPERANGE_UTF8 0x8000
+#define TYPERANGE_SESSIONTYPE 0x1000
+#define TYPERANGE_TARGETADDRESS 0x2000
+#define TYPERANGE_UTF8 0x4000
#define IS_TYPERANGE_0_TO_2(p) ((p)->type_range & TYPERANGE_0_TO_2)
#define IS_TYPERANGE_0_TO_3600(p) ((p)->type_range & TYPERANGE_0_TO_3600)
diff --git a/drivers/target/iscsi/iscsi_target_tmr.c b/drivers/target/iscsi/iscsi_target_tmr.c
index fe9a582..cf59c39 100644
--- a/drivers/target/iscsi/iscsi_target_tmr.c
+++ b/drivers/target/iscsi/iscsi_target_tmr.c
@@ -120,7 +120,7 @@
struct iscsi_tmr_req *tmr_req = cmd->tmr_req;
struct se_tmr_req *se_tmr = cmd->se_cmd.se_tmr_req;
struct iscsi_tm *hdr = (struct iscsi_tm *) buf;
- int ret, ref_lun;
+ u64 ret, ref_lun;
pr_debug("Got TASK_REASSIGN TMR ITT: 0x%08x,"
" RefTaskTag: 0x%08x, ExpDataSN: 0x%08x, CID: %hu\n",
@@ -164,7 +164,7 @@
ref_lun = scsilun_to_int(&hdr->lun);
if (ref_lun != ref_cmd->se_cmd.orig_fe_lun) {
pr_err("Unable to perform connection recovery for"
- " differing ref_lun: %d ref_cmd orig_fe_lun: %u\n",
+ " differing ref_lun: %llu ref_cmd orig_fe_lun: %llu\n",
ref_lun, ref_cmd->se_cmd.orig_fe_lun);
return ISCSI_TMF_RSP_REJECTED;
}
diff --git a/drivers/target/iscsi/iscsi_target_tpg.c b/drivers/target/iscsi/iscsi_target_tpg.c
index 5e3295f..968068f 100644
--- a/drivers/target/iscsi/iscsi_target_tpg.c
+++ b/drivers/target/iscsi/iscsi_target_tpg.c
@@ -18,7 +18,6 @@
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
-#include <target/target_core_configfs.h>
#include <target/iscsi/iscsi_target_core.h>
#include "iscsi_target_erl0.h"
@@ -67,9 +66,12 @@
pr_err("Unable to allocate struct iscsi_portal_group\n");
return -1;
}
-
- ret = core_tpg_register(&iscsi_ops, NULL, &tpg->tpg_se_tpg,
- tpg, TRANSPORT_TPG_TYPE_DISCOVERY);
+ /*
+ * Save iscsi_ops pointer for special case discovery TPG that
+ * doesn't exist as se_wwn->wwn_group within configfs.
+ */
+ tpg->tpg_se_tpg.se_tpg_tfo = &iscsi_ops;
+ ret = core_tpg_register(NULL, &tpg->tpg_se_tpg, -1);
if (ret < 0) {
kfree(tpg);
return -1;
@@ -280,8 +282,6 @@
return -EPERM;
}
- core_tpg_clear_object_luns(&tpg->tpg_se_tpg);
-
if (tpg->param_list) {
iscsi_release_param_list(tpg->param_list);
tpg->param_list = NULL;
diff --git a/drivers/target/iscsi/iscsi_target_util.c b/drivers/target/iscsi/iscsi_target_util.c
index b18edda..a2bff07 100644
--- a/drivers/target/iscsi/iscsi_target_util.c
+++ b/drivers/target/iscsi/iscsi_target_util.c
@@ -22,7 +22,6 @@
#include <scsi/iscsi_proto.h>
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
-#include <target/target_core_configfs.h>
#include <target/iscsi/iscsi_transport.h>
#include <target/iscsi/iscsi_target_core.h>
@@ -746,7 +745,7 @@
rc = transport_generic_free_cmd(&cmd->se_cmd, shutdown);
if (!rc && shutdown && se_cmd && se_cmd->se_sess) {
__iscsit_free_cmd(cmd, true, shutdown);
- target_put_sess_cmd(se_cmd->se_sess, se_cmd);
+ target_put_sess_cmd(se_cmd);
}
break;
case ISCSI_OP_REJECT:
@@ -762,7 +761,7 @@
rc = transport_generic_free_cmd(&cmd->se_cmd, shutdown);
if (!rc && shutdown && se_cmd->se_sess) {
__iscsit_free_cmd(cmd, true, shutdown);
- target_put_sess_cmd(se_cmd->se_sess, se_cmd);
+ target_put_sess_cmd(se_cmd);
}
break;
}
@@ -809,54 +808,6 @@
spin_unlock_bh(&sess->session_usage_lock);
}
-/*
- * Setup conn->if_marker and conn->of_marker values based upon
- * the initial marker-less interval. (see iSCSI v19 A.2)
- */
-int iscsit_set_sync_and_steering_values(struct iscsi_conn *conn)
-{
- int login_ifmarker_count = 0, login_ofmarker_count = 0, next_marker = 0;
- /*
- * IFMarkInt and OFMarkInt are negotiated as 32-bit words.
- */
- u32 IFMarkInt = (conn->conn_ops->IFMarkInt * 4);
- u32 OFMarkInt = (conn->conn_ops->OFMarkInt * 4);
-
- if (conn->conn_ops->OFMarker) {
- /*
- * Account for the first Login Command received not
- * via iscsi_recv_msg().
- */
- conn->of_marker += ISCSI_HDR_LEN;
- if (conn->of_marker <= OFMarkInt) {
- conn->of_marker = (OFMarkInt - conn->of_marker);
- } else {
- login_ofmarker_count = (conn->of_marker / OFMarkInt);
- next_marker = (OFMarkInt * (login_ofmarker_count + 1)) +
- (login_ofmarker_count * MARKER_SIZE);
- conn->of_marker = (next_marker - conn->of_marker);
- }
- conn->of_marker_offset = 0;
- pr_debug("Setting OFMarker value to %u based on Initial"
- " Markerless Interval.\n", conn->of_marker);
- }
-
- if (conn->conn_ops->IFMarker) {
- if (conn->if_marker <= IFMarkInt) {
- conn->if_marker = (IFMarkInt - conn->if_marker);
- } else {
- login_ifmarker_count = (conn->if_marker / IFMarkInt);
- next_marker = (IFMarkInt * (login_ifmarker_count + 1)) +
- (login_ifmarker_count * MARKER_SIZE);
- conn->if_marker = (next_marker - conn->if_marker);
- }
- pr_debug("Setting IFMarker value to %u based on Initial"
- " Markerless Interval.\n", conn->if_marker);
- }
-
- return 0;
-}
-
struct iscsi_conn *iscsit_get_conn_from_cid(struct iscsi_session *sess, u16 cid)
{
struct iscsi_conn *conn;
diff --git a/drivers/target/iscsi/iscsi_target_util.h b/drivers/target/iscsi/iscsi_target_util.h
index 1ab754a..995f1cb 100644
--- a/drivers/target/iscsi/iscsi_target_util.h
+++ b/drivers/target/iscsi/iscsi_target_util.h
@@ -34,7 +34,6 @@
extern int iscsit_check_session_usage_count(struct iscsi_session *);
extern void iscsit_dec_session_usage_count(struct iscsi_session *);
extern void iscsit_inc_session_usage_count(struct iscsi_session *);
-extern int iscsit_set_sync_and_steering_values(struct iscsi_conn *);
extern struct iscsi_conn *iscsit_get_conn_from_cid(struct iscsi_session *, u16);
extern struct iscsi_conn *iscsit_get_conn_from_cid_rcfr(struct iscsi_session *, u16);
extern void iscsit_check_conn_usage_count(struct iscsi_conn *);
diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c
index 51f0c89..a556bde 100644
--- a/drivers/target/loopback/tcm_loop.c
+++ b/drivers/target/loopback/tcm_loop.c
@@ -35,14 +35,11 @@
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
#include <target/target_core_fabric_configfs.h>
-#include <target/target_core_configfs.h>
#include "tcm_loop.h"
#define to_tcm_loop_hba(hba) container_of(hba, struct tcm_loop_hba, dev)
-static const struct target_core_fabric_ops loop_ops;
-
static struct workqueue_struct *tcm_loop_workqueue;
static struct kmem_cache *tcm_loop_cmd_cache;
@@ -165,6 +162,7 @@
transfer_length = scsi_bufflen(sc);
}
+ se_cmd->tag = tl_cmd->sc_cmd_tag;
rc = target_submit_cmd_map_sgls(se_cmd, tl_nexus->se_sess, sc->cmnd,
&tl_cmd->tl_sense_buf[0], tl_cmd->sc->device->lun,
transfer_length, TCM_SIMPLE_TAG,
@@ -217,7 +215,7 @@
* to struct scsi_device
*/
static int tcm_loop_issue_tmr(struct tcm_loop_tpg *tl_tpg,
- int lun, int task, enum tcm_tmreq_table tmr)
+ u64 lun, int task, enum tcm_tmreq_table tmr)
{
struct se_cmd *se_cmd = NULL;
struct se_session *se_sess;
@@ -409,7 +407,7 @@
sh->max_id = 2;
sh->max_lun = 0;
sh->max_channel = 0;
- sh->max_cmd_len = TL_SCSI_MAX_CMD_LEN;
+ sh->max_cmd_len = SCSI_MAX_VARLEN_CDB_SIZE;
host_prot = SHOST_DIF_TYPE1_PROTECTION | SHOST_DIF_TYPE2_PROTECTION |
SHOST_DIF_TYPE3_PROTECTION | SHOST_DIX_TYPE1_PROTECTION |
@@ -520,147 +518,26 @@
return "loopback";
}
-static u8 tcm_loop_get_fabric_proto_ident(struct se_portal_group *se_tpg)
+static inline struct tcm_loop_tpg *tl_tpg(struct se_portal_group *se_tpg)
{
- struct tcm_loop_tpg *tl_tpg = se_tpg->se_tpg_fabric_ptr;
- struct tcm_loop_hba *tl_hba = tl_tpg->tl_hba;
- /*
- * tl_proto_id is set at tcm_loop_configfs.c:tcm_loop_make_scsi_hba()
- * time based on the protocol dependent prefix of the passed configfs group.
- *
- * Based upon tl_proto_id, TCM_Loop emulates the requested fabric
- * ProtocolID using target_core_fabric_lib.c symbols.
- */
- switch (tl_hba->tl_proto_id) {
- case SCSI_PROTOCOL_SAS:
- return sas_get_fabric_proto_ident(se_tpg);
- case SCSI_PROTOCOL_FCP:
- return fc_get_fabric_proto_ident(se_tpg);
- case SCSI_PROTOCOL_ISCSI:
- return iscsi_get_fabric_proto_ident(se_tpg);
- default:
- pr_err("Unknown tl_proto_id: 0x%02x, using"
- " SAS emulation\n", tl_hba->tl_proto_id);
- break;
- }
-
- return sas_get_fabric_proto_ident(se_tpg);
+ return container_of(se_tpg, struct tcm_loop_tpg, tl_se_tpg);
}
static char *tcm_loop_get_endpoint_wwn(struct se_portal_group *se_tpg)
{
- struct tcm_loop_tpg *tl_tpg = se_tpg->se_tpg_fabric_ptr;
/*
* Return the passed NAA identifier for the SAS Target Port
*/
- return &tl_tpg->tl_hba->tl_wwn_address[0];
+ return &tl_tpg(se_tpg)->tl_hba->tl_wwn_address[0];
}
static u16 tcm_loop_get_tag(struct se_portal_group *se_tpg)
{
- struct tcm_loop_tpg *tl_tpg = se_tpg->se_tpg_fabric_ptr;
/*
* This Tag is used when forming SCSI Name identifier in EVPD=1 0x83
* to represent the SCSI Target Port.
*/
- return tl_tpg->tl_tpgt;
-}
-
-static u32 tcm_loop_get_default_depth(struct se_portal_group *se_tpg)
-{
- return 1;
-}
-
-static u32 tcm_loop_get_pr_transport_id(
- struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl,
- struct t10_pr_registration *pr_reg,
- int *format_code,
- unsigned char *buf)
-{
- struct tcm_loop_tpg *tl_tpg = se_tpg->se_tpg_fabric_ptr;
- struct tcm_loop_hba *tl_hba = tl_tpg->tl_hba;
-
- switch (tl_hba->tl_proto_id) {
- case SCSI_PROTOCOL_SAS:
- return sas_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
- format_code, buf);
- case SCSI_PROTOCOL_FCP:
- return fc_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
- format_code, buf);
- case SCSI_PROTOCOL_ISCSI:
- return iscsi_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
- format_code, buf);
- default:
- pr_err("Unknown tl_proto_id: 0x%02x, using"
- " SAS emulation\n", tl_hba->tl_proto_id);
- break;
- }
-
- return sas_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
- format_code, buf);
-}
-
-static u32 tcm_loop_get_pr_transport_id_len(
- struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl,
- struct t10_pr_registration *pr_reg,
- int *format_code)
-{
- struct tcm_loop_tpg *tl_tpg = se_tpg->se_tpg_fabric_ptr;
- struct tcm_loop_hba *tl_hba = tl_tpg->tl_hba;
-
- switch (tl_hba->tl_proto_id) {
- case SCSI_PROTOCOL_SAS:
- return sas_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
- format_code);
- case SCSI_PROTOCOL_FCP:
- return fc_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
- format_code);
- case SCSI_PROTOCOL_ISCSI:
- return iscsi_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
- format_code);
- default:
- pr_err("Unknown tl_proto_id: 0x%02x, using"
- " SAS emulation\n", tl_hba->tl_proto_id);
- break;
- }
-
- return sas_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
- format_code);
-}
-
-/*
- * Used for handling SCSI fabric dependent TransportIDs in SPC-3 and above
- * Persistent Reservation SPEC_I_PT=1 and PROUT REGISTER_AND_MOVE operations.
- */
-static char *tcm_loop_parse_pr_out_transport_id(
- struct se_portal_group *se_tpg,
- const char *buf,
- u32 *out_tid_len,
- char **port_nexus_ptr)
-{
- struct tcm_loop_tpg *tl_tpg = se_tpg->se_tpg_fabric_ptr;
- struct tcm_loop_hba *tl_hba = tl_tpg->tl_hba;
-
- switch (tl_hba->tl_proto_id) {
- case SCSI_PROTOCOL_SAS:
- return sas_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
- port_nexus_ptr);
- case SCSI_PROTOCOL_FCP:
- return fc_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
- port_nexus_ptr);
- case SCSI_PROTOCOL_ISCSI:
- return iscsi_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
- port_nexus_ptr);
- default:
- pr_err("Unknown tl_proto_id: 0x%02x, using"
- " SAS emulation\n", tl_hba->tl_proto_id);
- break;
- }
-
- return sas_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
- port_nexus_ptr);
+ return tl_tpg(se_tpg)->tl_tpgt;
}
/*
@@ -703,30 +580,6 @@
return tl_tpg->tl_fabric_prot_type;
}
-static struct se_node_acl *tcm_loop_tpg_alloc_fabric_acl(
- struct se_portal_group *se_tpg)
-{
- struct tcm_loop_nacl *tl_nacl;
-
- tl_nacl = kzalloc(sizeof(struct tcm_loop_nacl), GFP_KERNEL);
- if (!tl_nacl) {
- pr_err("Unable to allocate struct tcm_loop_nacl\n");
- return NULL;
- }
-
- return &tl_nacl->se_node_acl;
-}
-
-static void tcm_loop_tpg_release_fabric_acl(
- struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl)
-{
- struct tcm_loop_nacl *tl_nacl = container_of(se_nacl,
- struct tcm_loop_nacl, se_node_acl);
-
- kfree(tl_nacl);
-}
-
static u32 tcm_loop_get_inst_index(struct se_portal_group *se_tpg)
{
return 1;
@@ -742,14 +595,6 @@
return;
}
-static u32 tcm_loop_get_task_tag(struct se_cmd *se_cmd)
-{
- struct tcm_loop_cmd *tl_cmd = container_of(se_cmd,
- struct tcm_loop_cmd, tl_se_cmd);
-
- return tl_cmd->sc_cmd_tag;
-}
-
static int tcm_loop_get_cmd_state(struct se_cmd *se_cmd)
{
struct tcm_loop_cmd *tl_cmd = container_of(se_cmd,
@@ -902,7 +747,7 @@
se_lun->unpacked_lun);
if (!sd) {
pr_err("Unable to locate struct scsi_device for %d:%d:"
- "%d\n", 0, tl_tpg->tl_tpgt, se_lun->unpacked_lun);
+ "%llu\n", 0, tl_tpg->tl_tpgt, se_lun->unpacked_lun);
return;
}
/*
@@ -1234,8 +1079,7 @@
/*
* Register the tl_tpg as a emulated SAS TCM Target Endpoint
*/
- ret = core_tpg_register(&loop_ops, wwn, &tl_tpg->tl_se_tpg, tl_tpg,
- TRANSPORT_TPG_TYPE_NORMAL);
+ ret = core_tpg_register(wwn, &tl_tpg->tl_se_tpg, tl_hba->tl_proto_id);
if (ret < 0)
return ERR_PTR(-ENOMEM);
@@ -1386,13 +1230,8 @@
.module = THIS_MODULE,
.name = "loopback",
.get_fabric_name = tcm_loop_get_fabric_name,
- .get_fabric_proto_ident = tcm_loop_get_fabric_proto_ident,
.tpg_get_wwn = tcm_loop_get_endpoint_wwn,
.tpg_get_tag = tcm_loop_get_tag,
- .tpg_get_default_depth = tcm_loop_get_default_depth,
- .tpg_get_pr_transport_id = tcm_loop_get_pr_transport_id,
- .tpg_get_pr_transport_id_len = tcm_loop_get_pr_transport_id_len,
- .tpg_parse_pr_out_transport_id = tcm_loop_parse_pr_out_transport_id,
.tpg_check_demo_mode = tcm_loop_check_demo_mode,
.tpg_check_demo_mode_cache = tcm_loop_check_demo_mode_cache,
.tpg_check_demo_mode_write_protect =
@@ -1400,8 +1239,6 @@
.tpg_check_prod_mode_write_protect =
tcm_loop_check_prod_mode_write_protect,
.tpg_check_prot_fabric_only = tcm_loop_check_prot_fabric_only,
- .tpg_alloc_fabric_acl = tcm_loop_tpg_alloc_fabric_acl,
- .tpg_release_fabric_acl = tcm_loop_tpg_release_fabric_acl,
.tpg_get_inst_index = tcm_loop_get_inst_index,
.check_stop_free = tcm_loop_check_stop_free,
.release_cmd = tcm_loop_release_cmd,
@@ -1411,7 +1248,6 @@
.write_pending = tcm_loop_write_pending,
.write_pending_status = tcm_loop_write_pending_status,
.set_default_node_attributes = tcm_loop_set_default_node_attributes,
- .get_task_tag = tcm_loop_get_task_tag,
.get_cmd_state = tcm_loop_get_cmd_state,
.queue_data_in = tcm_loop_queue_data_in,
.queue_status = tcm_loop_queue_status,
diff --git a/drivers/target/loopback/tcm_loop.h b/drivers/target/loopback/tcm_loop.h
index 1e72ff7..4346462 100644
--- a/drivers/target/loopback/tcm_loop.h
+++ b/drivers/target/loopback/tcm_loop.h
@@ -2,11 +2,6 @@
#define TL_WWN_ADDR_LEN 256
#define TL_TPGS_PER_HBA 32
-/*
- * Used in tcm_loop_driver_probe() for struct Scsi_Host->max_cmd_len
- */
-#define TL_SCSI_MAX_CMD_LEN 32
-
struct tcm_loop_cmd {
/* State of Linux/SCSI CDB+Data descriptor */
u32 sc_cmd_state;
@@ -33,10 +28,6 @@
struct se_session *se_sess;
};
-struct tcm_loop_nacl {
- struct se_node_acl se_node_acl;
-};
-
#define TCM_TRANSPORT_ONLINE 0
#define TCM_TRANSPORT_OFFLINE 1
diff --git a/drivers/target/sbp/sbp_target.c b/drivers/target/sbp/sbp_target.c
index ce81f17..0edf320 100644
--- a/drivers/target/sbp/sbp_target.c
+++ b/drivers/target/sbp/sbp_target.c
@@ -36,7 +36,6 @@
#include <target/target_core_backend.h>
#include <target/target_core_fabric.h>
#include <target/target_core_fabric_configfs.h>
-#include <target/target_core_configfs.h>
#include <target/configfs_macros.h>
#include <asm/unaligned.h>
@@ -109,13 +108,13 @@
}
static struct sbp_login_descriptor *sbp_login_find_by_lun(
- struct sbp_session *session, struct se_lun *lun)
+ struct sbp_session *session, u32 unpacked_lun)
{
struct sbp_login_descriptor *login, *found = NULL;
spin_lock_bh(&session->lock);
list_for_each_entry(login, &session->login_list, link) {
- if (login->lun == lun)
+ if (login->login_lun == unpacked_lun)
found = login;
}
spin_unlock_bh(&session->lock);
@@ -125,7 +124,7 @@
static int sbp_login_count_all_by_lun(
struct sbp_tpg *tpg,
- struct se_lun *lun,
+ u32 unpacked_lun,
int exclusive)
{
struct se_session *se_sess;
@@ -139,7 +138,7 @@
spin_lock_bh(&sess->lock);
list_for_each_entry(login, &sess->login_list, link) {
- if (login->lun != lun)
+ if (login->login_lun != unpacked_lun)
continue;
if (!exclusive || login->exclusive)
@@ -175,23 +174,23 @@
return found;
}
-static struct se_lun *sbp_get_lun_from_tpg(struct sbp_tpg *tpg, int lun)
+static u32 sbp_get_lun_from_tpg(struct sbp_tpg *tpg, u32 login_lun, int *err)
{
struct se_portal_group *se_tpg = &tpg->se_tpg;
struct se_lun *se_lun;
- if (lun >= TRANSPORT_MAX_LUNS_PER_TPG)
- return ERR_PTR(-EINVAL);
+ rcu_read_lock();
+ hlist_for_each_entry_rcu(se_lun, &se_tpg->tpg_lun_hlist, link) {
+ if (se_lun->unpacked_lun == login_lun) {
+ rcu_read_unlock();
+ *err = 0;
+ return login_lun;
+ }
+ }
+ rcu_read_unlock();
- spin_lock(&se_tpg->tpg_lun_lock);
- se_lun = se_tpg->tpg_lun_list[lun];
-
- if (se_lun->lun_status != TRANSPORT_LUN_STATUS_ACTIVE)
- se_lun = ERR_PTR(-ENODEV);
-
- spin_unlock(&se_tpg->tpg_lun_lock);
-
- return se_lun;
+ *err = -ENODEV;
+ return login_lun;
}
static struct sbp_session *sbp_session_create(
@@ -295,17 +294,16 @@
{
struct sbp_tport *tport = agent->tport;
struct sbp_tpg *tpg = tport->tpg;
- struct se_lun *se_lun;
- int ret;
- u64 guid;
struct sbp_session *sess;
struct sbp_login_descriptor *login;
struct sbp_login_response_block *response;
- int login_response_len;
+ u64 guid;
+ u32 unpacked_lun;
+ int login_response_len, ret;
- se_lun = sbp_get_lun_from_tpg(tpg,
- LOGIN_ORB_LUN(be32_to_cpu(req->orb.misc)));
- if (IS_ERR(se_lun)) {
+ unpacked_lun = sbp_get_lun_from_tpg(tpg,
+ LOGIN_ORB_LUN(be32_to_cpu(req->orb.misc)), &ret);
+ if (ret) {
pr_notice("login to unknown LUN: %d\n",
LOGIN_ORB_LUN(be32_to_cpu(req->orb.misc)));
@@ -326,11 +324,11 @@
}
pr_notice("mgt_agent LOGIN to LUN %d from %016llx\n",
- se_lun->unpacked_lun, guid);
+ unpacked_lun, guid);
sess = sbp_session_find_by_guid(tpg, guid);
if (sess) {
- login = sbp_login_find_by_lun(sess, se_lun);
+ login = sbp_login_find_by_lun(sess, unpacked_lun);
if (login) {
pr_notice("initiator already logged-in\n");
@@ -358,7 +356,7 @@
* reject with access_denied if any logins present
*/
if (LOGIN_ORB_EXCLUSIVE(be32_to_cpu(req->orb.misc)) &&
- sbp_login_count_all_by_lun(tpg, se_lun, 0)) {
+ sbp_login_count_all_by_lun(tpg, unpacked_lun, 0)) {
pr_warn("refusing exclusive login with other active logins\n");
req->status.status = cpu_to_be32(
@@ -371,7 +369,7 @@
* check exclusive bit in any existing login descriptor
* reject with access_denied if any exclusive logins present
*/
- if (sbp_login_count_all_by_lun(tpg, se_lun, 1)) {
+ if (sbp_login_count_all_by_lun(tpg, unpacked_lun, 1)) {
pr_warn("refusing login while another exclusive login present\n");
req->status.status = cpu_to_be32(
@@ -384,7 +382,7 @@
* check we haven't exceeded the number of allowed logins
* reject with resources_unavailable if we have
*/
- if (sbp_login_count_all_by_lun(tpg, se_lun, 0) >=
+ if (sbp_login_count_all_by_lun(tpg, unpacked_lun, 0) >=
tport->max_logins_per_lun) {
pr_warn("max number of logins reached\n");
@@ -440,7 +438,7 @@
}
login->sess = sess;
- login->lun = se_lun;
+ login->login_lun = unpacked_lun;
login->status_fifo_addr = sbp2_pointer_to_addr(&req->orb.status_fifo);
login->exclusive = LOGIN_ORB_EXCLUSIVE(be32_to_cpu(req->orb.misc));
login->login_id = atomic_inc_return(&login_id);
@@ -602,7 +600,7 @@
}
pr_info("mgt_agent LOGOUT from LUN %d session %d\n",
- login->lun->unpacked_lun, login->login_id);
+ login->login_lun, login->login_id);
if (req->node_addr != login->sess->node_id) {
pr_warn("logout from different node ID\n");
@@ -1228,12 +1226,14 @@
goto err;
}
- unpacked_lun = req->login->lun->unpacked_lun;
+ unpacked_lun = req->login->login_lun;
sbp_calc_data_length_direction(req, &data_length, &data_dir);
pr_debug("sbp_handle_command ORB:0x%llx unpacked_lun:%d data_len:%d data_dir:%d\n",
req->orb_pointer, unpacked_lun, data_length, data_dir);
+ /* only used for printk until we do TMRs */
+ req->se_cmd.tag = req->orb_pointer;
if (target_submit_cmd(&req->se_cmd, sess->se_sess, req->cmd_buf,
req->sense_buf, unpacked_lun, data_length,
TCM_SIMPLE_TAG, data_dir, 0))
@@ -1707,33 +1707,6 @@
return tpg->tport_tpgt;
}
-static u32 sbp_get_default_depth(struct se_portal_group *se_tpg)
-{
- return 1;
-}
-
-static struct se_node_acl *sbp_alloc_fabric_acl(struct se_portal_group *se_tpg)
-{
- struct sbp_nacl *nacl;
-
- nacl = kzalloc(sizeof(struct sbp_nacl), GFP_KERNEL);
- if (!nacl) {
- pr_err("Unable to allocate struct sbp_nacl\n");
- return NULL;
- }
-
- return &nacl->se_node_acl;
-}
-
-static void sbp_release_fabric_acl(
- struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl)
-{
- struct sbp_nacl *nacl =
- container_of(se_nacl, struct sbp_nacl, se_node_acl);
- kfree(nacl);
-}
-
static u32 sbp_tpg_get_inst_index(struct se_portal_group *se_tpg)
{
return 1;
@@ -1795,15 +1768,6 @@
return;
}
-static u32 sbp_get_task_tag(struct se_cmd *se_cmd)
-{
- struct sbp_target_request *req = container_of(se_cmd,
- struct sbp_target_request, se_cmd);
-
- /* only used for printk until we do TMRs */
- return (u32)req->orb_pointer;
-}
-
static int sbp_get_cmd_state(struct se_cmd *se_cmd)
{
return 0;
@@ -1859,106 +1823,23 @@
return 1;
}
-/*
- * Handlers for Serial Bus Protocol 2/3 (SBP-2 / SBP-3)
- */
-static u8 sbp_get_fabric_proto_ident(struct se_portal_group *se_tpg)
-{
- /*
- * Return a IEEE 1394 SCSI Protocol identifier for loopback operations
- * This is defined in section 7.5.1 Table 362 in spc4r17
- */
- return SCSI_PROTOCOL_SBP;
-}
-
-static u32 sbp_get_pr_transport_id(
- struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl,
- struct t10_pr_registration *pr_reg,
- int *format_code,
- unsigned char *buf)
-{
- int ret;
-
- /*
- * Set PROTOCOL IDENTIFIER to 3h for SBP
- */
- buf[0] = SCSI_PROTOCOL_SBP;
- /*
- * From spc4r17, 7.5.4.4 TransportID for initiator ports using SCSI
- * over IEEE 1394
- */
- ret = hex2bin(&buf[8], se_nacl->initiatorname, 8);
- if (ret < 0)
- pr_debug("sbp transport_id: invalid hex string\n");
-
- /*
- * The IEEE 1394 Transport ID is a hardcoded 24-byte length
- */
- return 24;
-}
-
-static u32 sbp_get_pr_transport_id_len(
- struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl,
- struct t10_pr_registration *pr_reg,
- int *format_code)
-{
- *format_code = 0;
- /*
- * From spc4r17, 7.5.4.4 TransportID for initiator ports using SCSI
- * over IEEE 1394
- *
- * The SBP Transport ID is a hardcoded 24-byte length
- */
- return 24;
-}
-
-/*
- * Used for handling SCSI fabric dependent TransportIDs in SPC-3 and above
- * Persistent Reservation SPEC_I_PT=1 and PROUT REGISTER_AND_MOVE operations.
- */
-static char *sbp_parse_pr_out_transport_id(
- struct se_portal_group *se_tpg,
- const char *buf,
- u32 *out_tid_len,
- char **port_nexus_ptr)
-{
- /*
- * Assume the FORMAT CODE 00b from spc4r17, 7.5.4.4 TransportID
- * for initiator ports using SCSI over SBP Serial SCSI Protocol
- *
- * The TransportID for a IEEE 1394 Initiator Port is of fixed size of
- * 24 bytes, and IEEE 1394 does not contain a I_T nexus identifier,
- * so we return the **port_nexus_ptr set to NULL.
- */
- *port_nexus_ptr = NULL;
- *out_tid_len = 24;
-
- return (char *)&buf[8];
-}
-
static int sbp_count_se_tpg_luns(struct se_portal_group *tpg)
{
- int i, count = 0;
+ struct se_lun *lun;
+ int count = 0;
- spin_lock(&tpg->tpg_lun_lock);
- for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) {
- struct se_lun *se_lun = tpg->tpg_lun_list[i];
-
- if (se_lun->lun_status == TRANSPORT_LUN_STATUS_FREE)
- continue;
-
+ rcu_read_lock();
+ hlist_for_each_entry_rcu(lun, &tpg->tpg_lun_hlist, link)
count++;
- }
- spin_unlock(&tpg->tpg_lun_lock);
+ rcu_read_unlock();
return count;
}
static int sbp_update_unit_directory(struct sbp_tport *tport)
{
- int num_luns, num_entries, idx = 0, mgt_agt_addr, ret, i;
+ struct se_lun *lun;
+ int num_luns, num_entries, idx = 0, mgt_agt_addr, ret;
u32 *data;
if (tport->unit_directory.data) {
@@ -2020,28 +1901,23 @@
/* unit unique ID (leaf is just after LUNs) */
data[idx++] = 0x8d000000 | (num_luns + 1);
- spin_lock(&tport->tpg->se_tpg.tpg_lun_lock);
- for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) {
- struct se_lun *se_lun = tport->tpg->se_tpg.tpg_lun_list[i];
+ rcu_read_lock();
+ hlist_for_each_entry_rcu(lun, &tport->tpg->se_tpg.tpg_lun_hlist, link) {
struct se_device *dev;
int type;
-
- if (se_lun->lun_status == TRANSPORT_LUN_STATUS_FREE)
- continue;
-
- spin_unlock(&tport->tpg->se_tpg.tpg_lun_lock);
-
- dev = se_lun->lun_se_dev;
+ /*
+ * rcu_dereference_raw protected by se_lun->lun_group symlink
+ * reference to se_device->dev_group.
+ */
+ dev = rcu_dereference_raw(lun->lun_se_dev);
type = dev->transport->get_device_type(dev);
/* logical_unit_number */
data[idx++] = 0x14000000 |
((type << 16) & 0x1f0000) |
- (se_lun->unpacked_lun & 0xffff);
-
- spin_lock(&tport->tpg->se_tpg.tpg_lun_lock);
+ (lun->unpacked_lun & 0xffff);
}
- spin_unlock(&tport->tpg->se_tpg.tpg_lun_lock);
+ rcu_read_unlock();
/* unit unique ID leaf */
data[idx++] = 2 << 16;
@@ -2100,48 +1976,13 @@
return snprintf(buf, len, "%016llx", wwn);
}
-static struct se_node_acl *sbp_make_nodeacl(
- struct se_portal_group *se_tpg,
- struct config_group *group,
- const char *name)
+static int sbp_init_nodeacl(struct se_node_acl *se_nacl, const char *name)
{
- struct se_node_acl *se_nacl, *se_nacl_new;
- struct sbp_nacl *nacl;
u64 guid = 0;
- u32 nexus_depth = 1;
if (sbp_parse_wwn(name, &guid) < 0)
- return ERR_PTR(-EINVAL);
-
- se_nacl_new = sbp_alloc_fabric_acl(se_tpg);
- if (!se_nacl_new)
- return ERR_PTR(-ENOMEM);
-
- /*
- * se_nacl_new may be released by core_tpg_add_initiator_node_acl()
- * when converting a NodeACL from demo mode -> explict
- */
- se_nacl = core_tpg_add_initiator_node_acl(se_tpg, se_nacl_new,
- name, nexus_depth);
- if (IS_ERR(se_nacl)) {
- sbp_release_fabric_acl(se_tpg, se_nacl_new);
- return se_nacl;
- }
-
- nacl = container_of(se_nacl, struct sbp_nacl, se_node_acl);
- nacl->guid = guid;
- sbp_format_wwn(nacl->iport_name, SBP_NAMELEN, guid);
-
- return se_nacl;
-}
-
-static void sbp_drop_nodeacl(struct se_node_acl *se_acl)
-{
- struct sbp_nacl *nacl =
- container_of(se_acl, struct sbp_nacl, se_node_acl);
-
- core_tpg_del_initiator_node_acl(se_acl->se_tpg, se_acl, 1);
- kfree(nacl);
+ return -EINVAL;
+ return 0;
}
static int sbp_post_link_lun(
@@ -2214,8 +2055,7 @@
goto out_free_tpg;
}
- ret = core_tpg_register(&sbp_ops, wwn, &tpg->se_tpg, tpg,
- TRANSPORT_TPG_TYPE_NORMAL);
+ ret = core_tpg_register(wwn, &tpg->se_tpg, SCSI_PROTOCOL_SBP);
if (ret < 0)
goto out_unreg_mgt_agt;
@@ -2505,19 +2345,12 @@
.module = THIS_MODULE,
.name = "sbp",
.get_fabric_name = sbp_get_fabric_name,
- .get_fabric_proto_ident = sbp_get_fabric_proto_ident,
.tpg_get_wwn = sbp_get_fabric_wwn,
.tpg_get_tag = sbp_get_tag,
- .tpg_get_default_depth = sbp_get_default_depth,
- .tpg_get_pr_transport_id = sbp_get_pr_transport_id,
- .tpg_get_pr_transport_id_len = sbp_get_pr_transport_id_len,
- .tpg_parse_pr_out_transport_id = sbp_parse_pr_out_transport_id,
.tpg_check_demo_mode = sbp_check_true,
.tpg_check_demo_mode_cache = sbp_check_true,
.tpg_check_demo_mode_write_protect = sbp_check_false,
.tpg_check_prod_mode_write_protect = sbp_check_false,
- .tpg_alloc_fabric_acl = sbp_alloc_fabric_acl,
- .tpg_release_fabric_acl = sbp_release_fabric_acl,
.tpg_get_inst_index = sbp_tpg_get_inst_index,
.release_cmd = sbp_release_cmd,
.shutdown_session = sbp_shutdown_session,
@@ -2526,7 +2359,6 @@
.write_pending = sbp_write_pending,
.write_pending_status = sbp_write_pending_status,
.set_default_node_attributes = sbp_set_default_node_attrs,
- .get_task_tag = sbp_get_task_tag,
.get_cmd_state = sbp_get_cmd_state,
.queue_data_in = sbp_queue_data_in,
.queue_status = sbp_queue_status,
@@ -2542,8 +2374,7 @@
.fabric_pre_unlink = sbp_pre_unlink_lun,
.fabric_make_np = NULL,
.fabric_drop_np = NULL,
- .fabric_make_nodeacl = sbp_make_nodeacl,
- .fabric_drop_nodeacl = sbp_drop_nodeacl,
+ .fabric_init_nodeacl = sbp_init_nodeacl,
.tfc_wwn_attrs = sbp_wwn_attrs,
.tfc_tpg_base_attrs = sbp_tpg_base_attrs,
diff --git a/drivers/target/sbp/sbp_target.h b/drivers/target/sbp/sbp_target.h
index 6d0d74a..73bcb12 100644
--- a/drivers/target/sbp/sbp_target.h
+++ b/drivers/target/sbp/sbp_target.h
@@ -125,7 +125,7 @@
struct sbp_session *sess;
struct list_head link;
- struct se_lun *lun;
+ u32 login_lun;
u64 status_fifo_addr;
int exclusive;
@@ -151,15 +151,6 @@
u64 reconnect_expires;
};
-struct sbp_nacl {
- /* Initiator EUI-64 */
- u64 guid;
- /* ASCII formatted GUID for SBP Initiator port */
- char iport_name[SBP_NAMELEN];
- /* Returned by sbp_make_nodeacl() */
- struct se_node_acl se_node_acl;
-};
-
struct sbp_tpg {
/* Target portal group tag for TCM */
u16 tport_tpgt;
diff --git a/drivers/target/target_core_alua.c b/drivers/target/target_core_alua.c
index 8ca3737..49aba4a 100644
--- a/drivers/target/target_core_alua.c
+++ b/drivers/target/target_core_alua.c
@@ -34,7 +34,6 @@
#include <target/target_core_base.h>
#include <target/target_core_backend.h>
#include <target/target_core_fabric.h>
-#include <target/target_core_configfs.h>
#include "target_core_internal.h"
#include "target_core_alua.h"
@@ -43,11 +42,13 @@
static sense_reason_t core_alua_check_transition(int state, int valid,
int *primary);
static int core_alua_set_tg_pt_secondary_state(
- struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem,
- struct se_port *port, int explicit, int offline);
+ struct se_lun *lun, int explicit, int offline);
static char *core_alua_dump_state(int state);
+static void __target_attach_tg_pt_gp(struct se_lun *lun,
+ struct t10_alua_tg_pt_gp *tg_pt_gp);
+
static u16 alua_lu_gps_counter;
static u32 alua_lu_gps_count;
@@ -145,9 +146,8 @@
target_emulate_report_target_port_groups(struct se_cmd *cmd)
{
struct se_device *dev = cmd->se_dev;
- struct se_port *port;
struct t10_alua_tg_pt_gp *tg_pt_gp;
- struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem;
+ struct se_lun *lun;
unsigned char *buf;
u32 rd_len = 0, off;
int ext_hdr = (cmd->t_task_cdb[1] & 0x20);
@@ -222,9 +222,8 @@
rd_len += 8;
spin_lock(&tg_pt_gp->tg_pt_gp_lock);
- list_for_each_entry(tg_pt_gp_mem, &tg_pt_gp->tg_pt_gp_mem_list,
- tg_pt_gp_mem_list) {
- port = tg_pt_gp_mem->tg_pt;
+ list_for_each_entry(lun, &tg_pt_gp->tg_pt_gp_lun_list,
+ lun_tg_pt_gp_link) {
/*
* Start Target Port descriptor format
*
@@ -234,8 +233,8 @@
/*
* Set RELATIVE TARGET PORT IDENTIFIER
*/
- buf[off++] = ((port->sep_rtpi >> 8) & 0xff);
- buf[off++] = (port->sep_rtpi & 0xff);
+ buf[off++] = ((lun->lun_rtpi >> 8) & 0xff);
+ buf[off++] = (lun->lun_rtpi & 0xff);
rd_len += 4;
}
spin_unlock(&tg_pt_gp->tg_pt_gp_lock);
@@ -259,15 +258,11 @@
* this CDB was received upon to determine this value individually
* for ALUA target port group.
*/
- port = cmd->se_lun->lun_sep;
- tg_pt_gp_mem = port->sep_alua_tg_pt_gp_mem;
- if (tg_pt_gp_mem) {
- spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
- tg_pt_gp = tg_pt_gp_mem->tg_pt_gp;
- if (tg_pt_gp)
- buf[5] = tg_pt_gp->tg_pt_gp_implicit_trans_secs;
- spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
- }
+ spin_lock(&cmd->se_lun->lun_tg_pt_gp_lock);
+ tg_pt_gp = cmd->se_lun->lun_tg_pt_gp;
+ if (tg_pt_gp)
+ buf[5] = tg_pt_gp->tg_pt_gp_implicit_trans_secs;
+ spin_unlock(&cmd->se_lun->lun_tg_pt_gp_lock);
}
transport_kunmap_data_sg(cmd);
@@ -284,10 +279,9 @@
target_emulate_set_target_port_groups(struct se_cmd *cmd)
{
struct se_device *dev = cmd->se_dev;
- struct se_port *port, *l_port = cmd->se_lun->lun_sep;
+ struct se_lun *l_lun = cmd->se_lun;
struct se_node_acl *nacl = cmd->se_sess->se_node_acl;
struct t10_alua_tg_pt_gp *tg_pt_gp = NULL, *l_tg_pt_gp;
- struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem, *l_tg_pt_gp_mem;
unsigned char *buf;
unsigned char *ptr;
sense_reason_t rc = TCM_NO_SENSE;
@@ -295,9 +289,6 @@
int alua_access_state, primary = 0, valid_states;
u16 tg_pt_id, rtpi;
- if (!l_port)
- return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
-
if (cmd->data_length < 4) {
pr_warn("SET TARGET PORT GROUPS parameter list length %u too"
" small\n", cmd->data_length);
@@ -312,29 +303,24 @@
* Determine if explicit ALUA via SET_TARGET_PORT_GROUPS is allowed
* for the local tg_pt_gp.
*/
- l_tg_pt_gp_mem = l_port->sep_alua_tg_pt_gp_mem;
- if (!l_tg_pt_gp_mem) {
- pr_err("Unable to access l_port->sep_alua_tg_pt_gp_mem\n");
- rc = TCM_UNSUPPORTED_SCSI_OPCODE;
- goto out;
- }
- spin_lock(&l_tg_pt_gp_mem->tg_pt_gp_mem_lock);
- l_tg_pt_gp = l_tg_pt_gp_mem->tg_pt_gp;
+ spin_lock(&l_lun->lun_tg_pt_gp_lock);
+ l_tg_pt_gp = l_lun->lun_tg_pt_gp;
if (!l_tg_pt_gp) {
- spin_unlock(&l_tg_pt_gp_mem->tg_pt_gp_mem_lock);
- pr_err("Unable to access *l_tg_pt_gp_mem->tg_pt_gp\n");
+ spin_unlock(&l_lun->lun_tg_pt_gp_lock);
+ pr_err("Unable to access l_lun->tg_pt_gp\n");
rc = TCM_UNSUPPORTED_SCSI_OPCODE;
goto out;
}
- spin_unlock(&l_tg_pt_gp_mem->tg_pt_gp_mem_lock);
if (!(l_tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_EXPLICIT_ALUA)) {
+ spin_unlock(&l_lun->lun_tg_pt_gp_lock);
pr_debug("Unable to process SET_TARGET_PORT_GROUPS"
" while TPGS_EXPLICIT_ALUA is disabled\n");
rc = TCM_UNSUPPORTED_SCSI_OPCODE;
goto out;
}
valid_states = l_tg_pt_gp->tg_pt_gp_alua_supported_states;
+ spin_unlock(&l_lun->lun_tg_pt_gp_lock);
ptr = &buf[4]; /* Skip over RESERVED area in header */
@@ -396,7 +382,7 @@
spin_unlock(&dev->t10_alua.tg_pt_gps_lock);
if (!core_alua_do_port_transition(tg_pt_gp,
- dev, l_port, nacl,
+ dev, l_lun, nacl,
alua_access_state, 1))
found = true;
@@ -406,6 +392,8 @@
}
spin_unlock(&dev->t10_alua.tg_pt_gps_lock);
} else {
+ struct se_lun *lun;
+
/*
* Extract the RELATIVE TARGET PORT IDENTIFIER to identify
* the Target Port in question for the the incoming
@@ -417,17 +405,16 @@
* for the struct se_device storage object.
*/
spin_lock(&dev->se_port_lock);
- list_for_each_entry(port, &dev->dev_sep_list,
- sep_list) {
- if (port->sep_rtpi != rtpi)
+ list_for_each_entry(lun, &dev->dev_sep_list,
+ lun_dev_link) {
+ if (lun->lun_rtpi != rtpi)
continue;
- tg_pt_gp_mem = port->sep_alua_tg_pt_gp_mem;
-
+ // XXX: racy unlock
spin_unlock(&dev->se_port_lock);
if (!core_alua_set_tg_pt_secondary_state(
- tg_pt_gp_mem, port, 1, 1))
+ lun, 1, 1))
found = true;
spin_lock(&dev->se_port_lock);
@@ -696,9 +683,7 @@
struct se_device *dev = cmd->se_dev;
unsigned char *cdb = cmd->t_task_cdb;
struct se_lun *lun = cmd->se_lun;
- struct se_port *port = lun->lun_sep;
struct t10_alua_tg_pt_gp *tg_pt_gp;
- struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem;
int out_alua_state, nonop_delay_msecs;
if (dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE)
@@ -706,33 +691,27 @@
if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH)
return 0;
- if (!port)
- return 0;
/*
* First, check for a struct se_port specific secondary ALUA target port
* access state: OFFLINE
*/
- if (atomic_read(&port->sep_tg_pt_secondary_offline)) {
+ if (atomic_read(&lun->lun_tg_pt_secondary_offline)) {
pr_debug("ALUA: Got secondary offline status for local"
" target port\n");
set_ascq(cmd, ASCQ_04H_ALUA_OFFLINE);
return TCM_CHECK_CONDITION_NOT_READY;
}
- /*
- * Second, obtain the struct t10_alua_tg_pt_gp_member pointer to the
- * ALUA target port group, to obtain current ALUA access state.
- * Otherwise look for the underlying struct se_device association with
- * a ALUA logical unit group.
- */
- tg_pt_gp_mem = port->sep_alua_tg_pt_gp_mem;
- if (!tg_pt_gp_mem)
+
+ if (!lun->lun_tg_pt_gp)
return 0;
- spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
- tg_pt_gp = tg_pt_gp_mem->tg_pt_gp;
+ spin_lock(&lun->lun_tg_pt_gp_lock);
+ tg_pt_gp = lun->lun_tg_pt_gp;
out_alua_state = atomic_read(&tg_pt_gp->tg_pt_gp_alua_access_state);
nonop_delay_msecs = tg_pt_gp->tg_pt_gp_nonop_delay_msecs;
- spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
+
+ // XXX: keeps using tg_pt_gp witout reference after unlock
+ spin_unlock(&lun->lun_tg_pt_gp_lock);
/*
* Process ALUA_ACCESS_STATE_ACTIVE_OPTIMIZED in a separate conditional
* statement so the compiler knows explicitly to check this case first.
@@ -764,7 +743,7 @@
break;
/*
* OFFLINE is a secondary ALUA target port group access state, that is
- * handled above with struct se_port->sep_tg_pt_secondary_offline=1
+ * handled above with struct se_lun->lun_tg_pt_secondary_offline=1
*/
case ALUA_ACCESS_STATE_OFFLINE:
default:
@@ -906,10 +885,6 @@
}
EXPORT_SYMBOL(core_alua_check_nonop_delay);
-/*
- * Called with tg_pt_gp->tg_pt_gp_md_mutex or tg_pt_gp_mem->sep_tg_pt_md_mutex
- *
- */
static int core_alua_write_tpg_metadata(
const char *path,
unsigned char *md_buf,
@@ -965,22 +940,15 @@
return rc;
}
-static void core_alua_do_transition_tg_pt_work(struct work_struct *work)
+static void core_alua_queue_state_change_ua(struct t10_alua_tg_pt_gp *tg_pt_gp)
{
- struct t10_alua_tg_pt_gp *tg_pt_gp = container_of(work,
- struct t10_alua_tg_pt_gp, tg_pt_gp_transition_work.work);
- struct se_device *dev = tg_pt_gp->tg_pt_gp_dev;
struct se_dev_entry *se_deve;
+ struct se_lun *lun;
struct se_lun_acl *lacl;
- struct se_port *port;
- struct t10_alua_tg_pt_gp_member *mem;
- bool explicit = (tg_pt_gp->tg_pt_gp_alua_access_status ==
- ALUA_STATUS_ALTERED_BY_EXPLICIT_STPG);
spin_lock(&tg_pt_gp->tg_pt_gp_lock);
- list_for_each_entry(mem, &tg_pt_gp->tg_pt_gp_mem_list,
- tg_pt_gp_mem_list) {
- port = mem->tg_pt;
+ list_for_each_entry(lun, &tg_pt_gp->tg_pt_gp_lun_list,
+ lun_tg_pt_gp_link) {
/*
* After an implicit target port asymmetric access state
* change, a device server shall establish a unit attention
@@ -995,38 +963,58 @@
* every I_T nexus other than the I_T nexus on which the SET
* TARGET PORT GROUPS command
*/
- atomic_inc_mb(&mem->tg_pt_gp_mem_ref_cnt);
+ if (!percpu_ref_tryget_live(&lun->lun_ref))
+ continue;
spin_unlock(&tg_pt_gp->tg_pt_gp_lock);
- spin_lock_bh(&port->sep_alua_lock);
- list_for_each_entry(se_deve, &port->sep_alua_list,
- alua_port_list) {
- lacl = se_deve->se_lun_acl;
+ spin_lock(&lun->lun_deve_lock);
+ list_for_each_entry(se_deve, &lun->lun_deve_list, lun_link) {
+ lacl = rcu_dereference_check(se_deve->se_lun_acl,
+ lockdep_is_held(&lun->lun_deve_lock));
+
+ /*
+ * spc4r37 p.242:
+ * After an explicit target port asymmetric access
+ * state change, a device server shall establish a
+ * unit attention condition with the additional sense
+ * code set to ASYMMETRIC ACCESS STATE CHANGED for
+ * the initiator port associated with every I_T nexus
+ * other than the I_T nexus on which the SET TARGET
+ * PORT GROUPS command was received.
+ */
+ if ((tg_pt_gp->tg_pt_gp_alua_access_status ==
+ ALUA_STATUS_ALTERED_BY_EXPLICIT_STPG) &&
+ (tg_pt_gp->tg_pt_gp_alua_lun != NULL) &&
+ (tg_pt_gp->tg_pt_gp_alua_lun == lun))
+ continue;
+
/*
* se_deve->se_lun_acl pointer may be NULL for a
* entry created without explicit Node+MappedLUN ACLs
*/
- if (!lacl)
+ if (lacl && (tg_pt_gp->tg_pt_gp_alua_nacl != NULL) &&
+ (tg_pt_gp->tg_pt_gp_alua_nacl == lacl->se_lun_nacl))
continue;
- if ((tg_pt_gp->tg_pt_gp_alua_access_status ==
- ALUA_STATUS_ALTERED_BY_EXPLICIT_STPG) &&
- (tg_pt_gp->tg_pt_gp_alua_nacl != NULL) &&
- (tg_pt_gp->tg_pt_gp_alua_nacl == lacl->se_lun_nacl) &&
- (tg_pt_gp->tg_pt_gp_alua_port != NULL) &&
- (tg_pt_gp->tg_pt_gp_alua_port == port))
- continue;
-
- core_scsi3_ua_allocate(lacl->se_lun_nacl,
- se_deve->mapped_lun, 0x2A,
+ core_scsi3_ua_allocate(se_deve, 0x2A,
ASCQ_2AH_ASYMMETRIC_ACCESS_STATE_CHANGED);
}
- spin_unlock_bh(&port->sep_alua_lock);
+ spin_unlock(&lun->lun_deve_lock);
spin_lock(&tg_pt_gp->tg_pt_gp_lock);
- atomic_dec_mb(&mem->tg_pt_gp_mem_ref_cnt);
+ percpu_ref_put(&lun->lun_ref);
}
spin_unlock(&tg_pt_gp->tg_pt_gp_lock);
+}
+
+static void core_alua_do_transition_tg_pt_work(struct work_struct *work)
+{
+ struct t10_alua_tg_pt_gp *tg_pt_gp = container_of(work,
+ struct t10_alua_tg_pt_gp, tg_pt_gp_transition_work.work);
+ struct se_device *dev = tg_pt_gp->tg_pt_gp_dev;
+ bool explicit = (tg_pt_gp->tg_pt_gp_alua_access_status ==
+ ALUA_STATUS_ALTERED_BY_EXPLICIT_STPG);
+
/*
* Update the ALUA metadata buf that has been allocated in
* core_alua_do_port_transition(), this metadata will be written
@@ -1056,6 +1044,9 @@
tg_pt_gp->tg_pt_gp_id,
core_alua_dump_state(tg_pt_gp->tg_pt_gp_alua_previous_state),
core_alua_dump_state(tg_pt_gp->tg_pt_gp_alua_pending_state));
+
+ core_alua_queue_state_change_ua(tg_pt_gp);
+
spin_lock(&dev->t10_alua.tg_pt_gps_lock);
atomic_dec(&tg_pt_gp->tg_pt_gp_ref_cnt);
spin_unlock(&dev->t10_alua.tg_pt_gps_lock);
@@ -1108,6 +1099,8 @@
ALUA_STATUS_ALTERED_BY_EXPLICIT_STPG :
ALUA_STATUS_ALTERED_BY_IMPLICIT_ALUA;
+ core_alua_queue_state_change_ua(tg_pt_gp);
+
/*
* Check for the optional ALUA primary state transition delay
*/
@@ -1142,7 +1135,7 @@
int core_alua_do_port_transition(
struct t10_alua_tg_pt_gp *l_tg_pt_gp,
struct se_device *l_dev,
- struct se_port *l_port,
+ struct se_lun *l_lun,
struct se_node_acl *l_nacl,
int new_state,
int explicit)
@@ -1172,7 +1165,7 @@
* core_alua_do_transition_tg_pt() will always return
* success.
*/
- l_tg_pt_gp->tg_pt_gp_alua_port = l_port;
+ l_tg_pt_gp->tg_pt_gp_alua_lun = l_lun;
l_tg_pt_gp->tg_pt_gp_alua_nacl = l_nacl;
rc = core_alua_do_transition_tg_pt(l_tg_pt_gp,
new_state, explicit);
@@ -1211,10 +1204,10 @@
continue;
if (l_tg_pt_gp == tg_pt_gp) {
- tg_pt_gp->tg_pt_gp_alua_port = l_port;
+ tg_pt_gp->tg_pt_gp_alua_lun = l_lun;
tg_pt_gp->tg_pt_gp_alua_nacl = l_nacl;
} else {
- tg_pt_gp->tg_pt_gp_alua_port = NULL;
+ tg_pt_gp->tg_pt_gp_alua_lun = NULL;
tg_pt_gp->tg_pt_gp_alua_nacl = NULL;
}
atomic_inc_mb(&tg_pt_gp->tg_pt_gp_ref_cnt);
@@ -1251,22 +1244,20 @@
return rc;
}
-/*
- * Called with tg_pt_gp_mem->sep_tg_pt_md_mutex held
- */
-static int core_alua_update_tpg_secondary_metadata(
- struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem,
- struct se_port *port)
+static int core_alua_update_tpg_secondary_metadata(struct se_lun *lun)
{
+ struct se_portal_group *se_tpg = lun->lun_tpg;
unsigned char *md_buf;
- struct se_portal_group *se_tpg = port->sep_tpg;
char path[ALUA_METADATA_PATH_LEN], wwn[ALUA_SECONDARY_METADATA_WWN_LEN];
int len, rc;
+ mutex_lock(&lun->lun_tg_pt_md_mutex);
+
md_buf = kzalloc(ALUA_MD_BUF_LEN, GFP_KERNEL);
if (!md_buf) {
pr_err("Unable to allocate buf for ALUA metadata\n");
- return -ENOMEM;
+ rc = -ENOMEM;
+ goto out_unlock;
}
memset(path, 0, ALUA_METADATA_PATH_LEN);
@@ -1281,32 +1272,33 @@
len = snprintf(md_buf, ALUA_MD_BUF_LEN, "alua_tg_pt_offline=%d\n"
"alua_tg_pt_status=0x%02x\n",
- atomic_read(&port->sep_tg_pt_secondary_offline),
- port->sep_tg_pt_secondary_stat);
+ atomic_read(&lun->lun_tg_pt_secondary_offline),
+ lun->lun_tg_pt_secondary_stat);
- snprintf(path, ALUA_METADATA_PATH_LEN, "/var/target/alua/%s/%s/lun_%u",
+ snprintf(path, ALUA_METADATA_PATH_LEN, "/var/target/alua/%s/%s/lun_%llu",
se_tpg->se_tpg_tfo->get_fabric_name(), wwn,
- port->sep_lun->unpacked_lun);
+ lun->unpacked_lun);
rc = core_alua_write_tpg_metadata(path, md_buf, len);
kfree(md_buf);
+out_unlock:
+ mutex_unlock(&lun->lun_tg_pt_md_mutex);
return rc;
}
static int core_alua_set_tg_pt_secondary_state(
- struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem,
- struct se_port *port,
+ struct se_lun *lun,
int explicit,
int offline)
{
struct t10_alua_tg_pt_gp *tg_pt_gp;
int trans_delay_msecs;
- spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
- tg_pt_gp = tg_pt_gp_mem->tg_pt_gp;
+ spin_lock(&lun->lun_tg_pt_gp_lock);
+ tg_pt_gp = lun->lun_tg_pt_gp;
if (!tg_pt_gp) {
- spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
+ spin_unlock(&lun->lun_tg_pt_gp_lock);
pr_err("Unable to complete secondary state"
" transition\n");
return -EINVAL;
@@ -1314,14 +1306,14 @@
trans_delay_msecs = tg_pt_gp->tg_pt_gp_trans_delay_msecs;
/*
* Set the secondary ALUA target port access state to OFFLINE
- * or release the previously secondary state for struct se_port
+ * or release the previously secondary state for struct se_lun
*/
if (offline)
- atomic_set(&port->sep_tg_pt_secondary_offline, 1);
+ atomic_set(&lun->lun_tg_pt_secondary_offline, 1);
else
- atomic_set(&port->sep_tg_pt_secondary_offline, 0);
+ atomic_set(&lun->lun_tg_pt_secondary_offline, 0);
- port->sep_tg_pt_secondary_stat = (explicit) ?
+ lun->lun_tg_pt_secondary_stat = (explicit) ?
ALUA_STATUS_ALTERED_BY_EXPLICIT_STPG :
ALUA_STATUS_ALTERED_BY_IMPLICIT_ALUA;
@@ -1330,7 +1322,7 @@
"implicit", config_item_name(&tg_pt_gp->tg_pt_gp_group.cg_item),
tg_pt_gp->tg_pt_gp_id, (offline) ? "OFFLINE" : "ONLINE");
- spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
+ spin_unlock(&lun->lun_tg_pt_gp_lock);
/*
* Do the optional transition delay after we set the secondary
* ALUA access state.
@@ -1341,11 +1333,8 @@
* See if we need to update the ALUA fabric port metadata for
* secondary state and status
*/
- if (port->sep_tg_pt_secondary_write_md) {
- mutex_lock(&port->sep_tg_pt_md_mutex);
- core_alua_update_tpg_secondary_metadata(tg_pt_gp_mem, port);
- mutex_unlock(&port->sep_tg_pt_md_mutex);
- }
+ if (lun->lun_tg_pt_secondary_write_md)
+ core_alua_update_tpg_secondary_metadata(lun);
return 0;
}
@@ -1699,7 +1688,7 @@
return NULL;
}
INIT_LIST_HEAD(&tg_pt_gp->tg_pt_gp_list);
- INIT_LIST_HEAD(&tg_pt_gp->tg_pt_gp_mem_list);
+ INIT_LIST_HEAD(&tg_pt_gp->tg_pt_gp_lun_list);
mutex_init(&tg_pt_gp->tg_pt_gp_md_mutex);
spin_lock_init(&tg_pt_gp->tg_pt_gp_lock);
atomic_set(&tg_pt_gp->tg_pt_gp_ref_cnt, 0);
@@ -1793,32 +1782,11 @@
return 0;
}
-struct t10_alua_tg_pt_gp_member *core_alua_allocate_tg_pt_gp_mem(
- struct se_port *port)
-{
- struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem;
-
- tg_pt_gp_mem = kmem_cache_zalloc(t10_alua_tg_pt_gp_mem_cache,
- GFP_KERNEL);
- if (!tg_pt_gp_mem) {
- pr_err("Unable to allocate struct t10_alua_tg_pt_gp_member\n");
- return ERR_PTR(-ENOMEM);
- }
- INIT_LIST_HEAD(&tg_pt_gp_mem->tg_pt_gp_mem_list);
- spin_lock_init(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
- atomic_set(&tg_pt_gp_mem->tg_pt_gp_mem_ref_cnt, 0);
-
- tg_pt_gp_mem->tg_pt = port;
- port->sep_alua_tg_pt_gp_mem = tg_pt_gp_mem;
-
- return tg_pt_gp_mem;
-}
-
void core_alua_free_tg_pt_gp(
struct t10_alua_tg_pt_gp *tg_pt_gp)
{
struct se_device *dev = tg_pt_gp->tg_pt_gp_dev;
- struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem, *tg_pt_gp_mem_tmp;
+ struct se_lun *lun, *next;
/*
* Once we have reached this point, config_item_put() has already
@@ -1849,30 +1817,24 @@
* struct se_port.
*/
spin_lock(&tg_pt_gp->tg_pt_gp_lock);
- list_for_each_entry_safe(tg_pt_gp_mem, tg_pt_gp_mem_tmp,
- &tg_pt_gp->tg_pt_gp_mem_list, tg_pt_gp_mem_list) {
- if (tg_pt_gp_mem->tg_pt_gp_assoc) {
- list_del(&tg_pt_gp_mem->tg_pt_gp_mem_list);
- tg_pt_gp->tg_pt_gp_members--;
- tg_pt_gp_mem->tg_pt_gp_assoc = 0;
- }
+ list_for_each_entry_safe(lun, next,
+ &tg_pt_gp->tg_pt_gp_lun_list, lun_tg_pt_gp_link) {
+ list_del_init(&lun->lun_tg_pt_gp_link);
+ tg_pt_gp->tg_pt_gp_members--;
+
spin_unlock(&tg_pt_gp->tg_pt_gp_lock);
/*
- * tg_pt_gp_mem is associated with a single
- * se_port->sep_alua_tg_pt_gp_mem, and is released via
- * core_alua_free_tg_pt_gp_mem().
- *
* If the passed tg_pt_gp does NOT match the default_tg_pt_gp,
* assume we want to re-associate a given tg_pt_gp_mem with
* default_tg_pt_gp.
*/
- spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
+ spin_lock(&lun->lun_tg_pt_gp_lock);
if (tg_pt_gp != dev->t10_alua.default_tg_pt_gp) {
- __core_alua_attach_tg_pt_gp_mem(tg_pt_gp_mem,
+ __target_attach_tg_pt_gp(lun,
dev->t10_alua.default_tg_pt_gp);
} else
- tg_pt_gp_mem->tg_pt_gp = NULL;
- spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
+ lun->lun_tg_pt_gp = NULL;
+ spin_unlock(&lun->lun_tg_pt_gp_lock);
spin_lock(&tg_pt_gp->tg_pt_gp_lock);
}
@@ -1881,35 +1843,6 @@
kmem_cache_free(t10_alua_tg_pt_gp_cache, tg_pt_gp);
}
-void core_alua_free_tg_pt_gp_mem(struct se_port *port)
-{
- struct t10_alua_tg_pt_gp *tg_pt_gp;
- struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem;
-
- tg_pt_gp_mem = port->sep_alua_tg_pt_gp_mem;
- if (!tg_pt_gp_mem)
- return;
-
- while (atomic_read(&tg_pt_gp_mem->tg_pt_gp_mem_ref_cnt))
- cpu_relax();
-
- spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
- tg_pt_gp = tg_pt_gp_mem->tg_pt_gp;
- if (tg_pt_gp) {
- spin_lock(&tg_pt_gp->tg_pt_gp_lock);
- if (tg_pt_gp_mem->tg_pt_gp_assoc) {
- list_del(&tg_pt_gp_mem->tg_pt_gp_mem_list);
- tg_pt_gp->tg_pt_gp_members--;
- tg_pt_gp_mem->tg_pt_gp_assoc = 0;
- }
- spin_unlock(&tg_pt_gp->tg_pt_gp_lock);
- tg_pt_gp_mem->tg_pt_gp = NULL;
- }
- spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
-
- kmem_cache_free(t10_alua_tg_pt_gp_mem_cache, tg_pt_gp_mem);
-}
-
static struct t10_alua_tg_pt_gp *core_alua_get_tg_pt_gp_by_name(
struct se_device *dev, const char *name)
{
@@ -1943,50 +1876,65 @@
spin_unlock(&dev->t10_alua.tg_pt_gps_lock);
}
-/*
- * Called with struct t10_alua_tg_pt_gp_member->tg_pt_gp_mem_lock held
- */
-void __core_alua_attach_tg_pt_gp_mem(
- struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem,
- struct t10_alua_tg_pt_gp *tg_pt_gp)
+static void __target_attach_tg_pt_gp(struct se_lun *lun,
+ struct t10_alua_tg_pt_gp *tg_pt_gp)
{
+ struct se_dev_entry *se_deve;
+
+ assert_spin_locked(&lun->lun_tg_pt_gp_lock);
+
spin_lock(&tg_pt_gp->tg_pt_gp_lock);
- tg_pt_gp_mem->tg_pt_gp = tg_pt_gp;
- tg_pt_gp_mem->tg_pt_gp_assoc = 1;
- list_add_tail(&tg_pt_gp_mem->tg_pt_gp_mem_list,
- &tg_pt_gp->tg_pt_gp_mem_list);
+ lun->lun_tg_pt_gp = tg_pt_gp;
+ list_add_tail(&lun->lun_tg_pt_gp_link, &tg_pt_gp->tg_pt_gp_lun_list);
tg_pt_gp->tg_pt_gp_members++;
+ spin_lock(&lun->lun_deve_lock);
+ list_for_each_entry(se_deve, &lun->lun_deve_list, lun_link)
+ core_scsi3_ua_allocate(se_deve, 0x3f,
+ ASCQ_3FH_INQUIRY_DATA_HAS_CHANGED);
+ spin_unlock(&lun->lun_deve_lock);
spin_unlock(&tg_pt_gp->tg_pt_gp_lock);
}
-/*
- * Called with struct t10_alua_tg_pt_gp_member->tg_pt_gp_mem_lock held
- */
-static void __core_alua_drop_tg_pt_gp_mem(
- struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem,
- struct t10_alua_tg_pt_gp *tg_pt_gp)
+void target_attach_tg_pt_gp(struct se_lun *lun,
+ struct t10_alua_tg_pt_gp *tg_pt_gp)
{
+ spin_lock(&lun->lun_tg_pt_gp_lock);
+ __target_attach_tg_pt_gp(lun, tg_pt_gp);
+ spin_unlock(&lun->lun_tg_pt_gp_lock);
+}
+
+static void __target_detach_tg_pt_gp(struct se_lun *lun,
+ struct t10_alua_tg_pt_gp *tg_pt_gp)
+{
+ assert_spin_locked(&lun->lun_tg_pt_gp_lock);
+
spin_lock(&tg_pt_gp->tg_pt_gp_lock);
- list_del(&tg_pt_gp_mem->tg_pt_gp_mem_list);
- tg_pt_gp_mem->tg_pt_gp = NULL;
- tg_pt_gp_mem->tg_pt_gp_assoc = 0;
+ list_del_init(&lun->lun_tg_pt_gp_link);
tg_pt_gp->tg_pt_gp_members--;
spin_unlock(&tg_pt_gp->tg_pt_gp_lock);
+
+ lun->lun_tg_pt_gp = NULL;
}
-ssize_t core_alua_show_tg_pt_gp_info(struct se_port *port, char *page)
+void target_detach_tg_pt_gp(struct se_lun *lun)
+{
+ struct t10_alua_tg_pt_gp *tg_pt_gp;
+
+ spin_lock(&lun->lun_tg_pt_gp_lock);
+ tg_pt_gp = lun->lun_tg_pt_gp;
+ if (tg_pt_gp)
+ __target_detach_tg_pt_gp(lun, tg_pt_gp);
+ spin_unlock(&lun->lun_tg_pt_gp_lock);
+}
+
+ssize_t core_alua_show_tg_pt_gp_info(struct se_lun *lun, char *page)
{
struct config_item *tg_pt_ci;
struct t10_alua_tg_pt_gp *tg_pt_gp;
- struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem;
ssize_t len = 0;
- tg_pt_gp_mem = port->sep_alua_tg_pt_gp_mem;
- if (!tg_pt_gp_mem)
- return len;
-
- spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
- tg_pt_gp = tg_pt_gp_mem->tg_pt_gp;
+ spin_lock(&lun->lun_tg_pt_gp_lock);
+ tg_pt_gp = lun->lun_tg_pt_gp;
if (tg_pt_gp) {
tg_pt_ci = &tg_pt_gp->tg_pt_gp_group.cg_item;
len += sprintf(page, "TG Port Alias: %s\nTG Port Group ID:"
@@ -1998,34 +1946,33 @@
&tg_pt_gp->tg_pt_gp_alua_access_state)),
core_alua_dump_status(
tg_pt_gp->tg_pt_gp_alua_access_status),
- (atomic_read(&port->sep_tg_pt_secondary_offline)) ?
+ atomic_read(&lun->lun_tg_pt_secondary_offline) ?
"Offline" : "None",
- core_alua_dump_status(port->sep_tg_pt_secondary_stat));
+ core_alua_dump_status(lun->lun_tg_pt_secondary_stat));
}
- spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
+ spin_unlock(&lun->lun_tg_pt_gp_lock);
return len;
}
ssize_t core_alua_store_tg_pt_gp_info(
- struct se_port *port,
+ struct se_lun *lun,
const char *page,
size_t count)
{
- struct se_portal_group *tpg;
- struct se_lun *lun;
- struct se_device *dev = port->sep_lun->lun_se_dev;
+ struct se_portal_group *tpg = lun->lun_tpg;
+ /*
+ * rcu_dereference_raw protected by se_lun->lun_group symlink
+ * reference to se_device->dev_group.
+ */
+ struct se_device *dev = rcu_dereference_raw(lun->lun_se_dev);
struct t10_alua_tg_pt_gp *tg_pt_gp = NULL, *tg_pt_gp_new = NULL;
- struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem;
unsigned char buf[TG_PT_GROUP_NAME_BUF];
int move = 0;
- tpg = port->sep_tpg;
- lun = port->sep_lun;
-
- tg_pt_gp_mem = port->sep_alua_tg_pt_gp_mem;
- if (!tg_pt_gp_mem)
- return 0;
+ if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH ||
+ (dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE))
+ return -ENODEV;
if (count > TG_PT_GROUP_NAME_BUF) {
pr_err("ALUA Target Port Group alias too large!\n");
@@ -2049,8 +1996,8 @@
return -ENODEV;
}
- spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
- tg_pt_gp = tg_pt_gp_mem->tg_pt_gp;
+ spin_lock(&lun->lun_tg_pt_gp_lock);
+ tg_pt_gp = lun->lun_tg_pt_gp;
if (tg_pt_gp) {
/*
* Clearing an existing tg_pt_gp association, and replacing
@@ -2068,24 +2015,19 @@
&tg_pt_gp->tg_pt_gp_group.cg_item),
tg_pt_gp->tg_pt_gp_id);
- __core_alua_drop_tg_pt_gp_mem(tg_pt_gp_mem, tg_pt_gp);
- __core_alua_attach_tg_pt_gp_mem(tg_pt_gp_mem,
+ __target_detach_tg_pt_gp(lun, tg_pt_gp);
+ __target_attach_tg_pt_gp(lun,
dev->t10_alua.default_tg_pt_gp);
- spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
+ spin_unlock(&lun->lun_tg_pt_gp_lock);
return count;
}
- /*
- * Removing existing association of tg_pt_gp_mem with tg_pt_gp
- */
- __core_alua_drop_tg_pt_gp_mem(tg_pt_gp_mem, tg_pt_gp);
+ __target_detach_tg_pt_gp(lun, tg_pt_gp);
move = 1;
}
- /*
- * Associate tg_pt_gp_mem with tg_pt_gp_new.
- */
- __core_alua_attach_tg_pt_gp_mem(tg_pt_gp_mem, tg_pt_gp_new);
- spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
+
+ __target_attach_tg_pt_gp(lun, tg_pt_gp_new);
+ spin_unlock(&lun->lun_tg_pt_gp_lock);
pr_debug("Target_Core_ConfigFS: %s %s/tpgt_%hu/%s to ALUA"
" Target Port Group: alua/%s, ID: %hu\n", (move) ?
"Moving" : "Adding", tpg->se_tpg_tfo->tpg_get_wwn(tpg),
@@ -2268,11 +2210,8 @@
ssize_t core_alua_show_offline_bit(struct se_lun *lun, char *page)
{
- if (!lun->lun_sep)
- return -ENODEV;
-
return sprintf(page, "%d\n",
- atomic_read(&lun->lun_sep->sep_tg_pt_secondary_offline));
+ atomic_read(&lun->lun_tg_pt_secondary_offline));
}
ssize_t core_alua_store_offline_bit(
@@ -2280,11 +2219,16 @@
const char *page,
size_t count)
{
- struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem;
+ /*
+ * rcu_dereference_raw protected by se_lun->lun_group symlink
+ * reference to se_device->dev_group.
+ */
+ struct se_device *dev = rcu_dereference_raw(lun->lun_se_dev);
unsigned long tmp;
int ret;
- if (!lun->lun_sep)
+ if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH ||
+ (dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE))
return -ENODEV;
ret = kstrtoul(page, 0, &tmp);
@@ -2297,14 +2241,8 @@
tmp);
return -EINVAL;
}
- tg_pt_gp_mem = lun->lun_sep->sep_alua_tg_pt_gp_mem;
- if (!tg_pt_gp_mem) {
- pr_err("Unable to locate *tg_pt_gp_mem\n");
- return -EINVAL;
- }
- ret = core_alua_set_tg_pt_secondary_state(tg_pt_gp_mem,
- lun->lun_sep, 0, (int)tmp);
+ ret = core_alua_set_tg_pt_secondary_state(lun, 0, (int)tmp);
if (ret < 0)
return -EINVAL;
@@ -2315,7 +2253,7 @@
struct se_lun *lun,
char *page)
{
- return sprintf(page, "%d\n", lun->lun_sep->sep_tg_pt_secondary_stat);
+ return sprintf(page, "%d\n", lun->lun_tg_pt_secondary_stat);
}
ssize_t core_alua_store_secondary_status(
@@ -2338,7 +2276,7 @@
tmp);
return -EINVAL;
}
- lun->lun_sep->sep_tg_pt_secondary_stat = (int)tmp;
+ lun->lun_tg_pt_secondary_stat = (int)tmp;
return count;
}
@@ -2347,8 +2285,7 @@
struct se_lun *lun,
char *page)
{
- return sprintf(page, "%d\n",
- lun->lun_sep->sep_tg_pt_secondary_write_md);
+ return sprintf(page, "%d\n", lun->lun_tg_pt_secondary_write_md);
}
ssize_t core_alua_store_secondary_write_metadata(
@@ -2369,7 +2306,7 @@
" %lu\n", tmp);
return -EINVAL;
}
- lun->lun_sep->sep_tg_pt_secondary_write_md = (int)tmp;
+ lun->lun_tg_pt_secondary_write_md = (int)tmp;
return count;
}
diff --git a/drivers/target/target_core_alua.h b/drivers/target/target_core_alua.h
index 0a7d65e..9b250f9 100644
--- a/drivers/target/target_core_alua.h
+++ b/drivers/target/target_core_alua.h
@@ -85,7 +85,6 @@
extern struct kmem_cache *t10_alua_lu_gp_cache;
extern struct kmem_cache *t10_alua_lu_gp_mem_cache;
extern struct kmem_cache *t10_alua_tg_pt_gp_cache;
-extern struct kmem_cache *t10_alua_tg_pt_gp_mem_cache;
extern struct kmem_cache *t10_alua_lba_map_cache;
extern struct kmem_cache *t10_alua_lba_map_mem_cache;
@@ -94,7 +93,7 @@
extern sense_reason_t target_emulate_report_referrals(struct se_cmd *);
extern int core_alua_check_nonop_delay(struct se_cmd *);
extern int core_alua_do_port_transition(struct t10_alua_tg_pt_gp *,
- struct se_device *, struct se_port *,
+ struct se_device *, struct se_lun *,
struct se_node_acl *, int, int);
extern char *core_alua_dump_status(int);
extern struct t10_alua_lba_map *core_alua_allocate_lba_map(
@@ -117,14 +116,11 @@
extern struct t10_alua_tg_pt_gp *core_alua_allocate_tg_pt_gp(
struct se_device *, const char *, int);
extern int core_alua_set_tg_pt_gp_id(struct t10_alua_tg_pt_gp *, u16);
-extern struct t10_alua_tg_pt_gp_member *core_alua_allocate_tg_pt_gp_mem(
- struct se_port *);
extern void core_alua_free_tg_pt_gp(struct t10_alua_tg_pt_gp *);
-extern void core_alua_free_tg_pt_gp_mem(struct se_port *);
-extern void __core_alua_attach_tg_pt_gp_mem(struct t10_alua_tg_pt_gp_member *,
- struct t10_alua_tg_pt_gp *);
-extern ssize_t core_alua_show_tg_pt_gp_info(struct se_port *, char *);
-extern ssize_t core_alua_store_tg_pt_gp_info(struct se_port *, const char *,
+extern void target_detach_tg_pt_gp(struct se_lun *);
+extern void target_attach_tg_pt_gp(struct se_lun *, struct t10_alua_tg_pt_gp *);
+extern ssize_t core_alua_show_tg_pt_gp_info(struct se_lun *, char *);
+extern ssize_t core_alua_store_tg_pt_gp_info(struct se_lun *, const char *,
size_t);
extern ssize_t core_alua_show_access_type(struct t10_alua_tg_pt_gp *, char *);
extern ssize_t core_alua_store_access_type(struct t10_alua_tg_pt_gp *,
diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c
index e7b0430..0b0de36 100644
--- a/drivers/target/target_core_configfs.c
+++ b/drivers/target/target_core_configfs.c
@@ -41,7 +41,6 @@
#include <target/target_core_backend.h>
#include <target/target_core_fabric.h>
#include <target/target_core_fabric_configfs.h>
-#include <target/target_core_configfs.h>
#include <target/configfs_macros.h>
#include "target_core_internal.h"
@@ -51,15 +50,26 @@
#include "target_core_xcopy.h"
#define TB_CIT_SETUP(_name, _item_ops, _group_ops, _attrs) \
-static void target_core_setup_##_name##_cit(struct se_subsystem_api *sa) \
+static void target_core_setup_##_name##_cit(struct target_backend *tb) \
{ \
- struct target_backend_cits *tbc = &sa->tb_cits; \
- struct config_item_type *cit = &tbc->tb_##_name##_cit; \
+ struct config_item_type *cit = &tb->tb_##_name##_cit; \
\
cit->ct_item_ops = _item_ops; \
cit->ct_group_ops = _group_ops; \
cit->ct_attrs = _attrs; \
- cit->ct_owner = sa->owner; \
+ cit->ct_owner = tb->ops->owner; \
+ pr_debug("Setup generic %s\n", __stringify(_name)); \
+}
+
+#define TB_CIT_SETUP_DRV(_name, _item_ops, _group_ops) \
+static void target_core_setup_##_name##_cit(struct target_backend *tb) \
+{ \
+ struct config_item_type *cit = &tb->tb_##_name##_cit; \
+ \
+ cit->ct_item_ops = _item_ops; \
+ cit->ct_group_ops = _group_ops; \
+ cit->ct_attrs = tb->ops->tb_##_name##_attrs; \
+ cit->ct_owner = tb->ops->owner; \
pr_debug("Setup generic %s\n", __stringify(_name)); \
}
@@ -92,7 +102,7 @@
char *page)
{
return sprintf(page, "Target Engine Core ConfigFS Infrastructure %s"
- " on %s/%s on "UTS_RELEASE"\n", TARGET_CORE_CONFIGFS_VERSION,
+ " on %s/%s on "UTS_RELEASE"\n", TARGET_CORE_VERSION,
utsname()->sysname, utsname()->machine);
}
@@ -116,7 +126,7 @@
mutex_lock(&g_tf_lock);
list_for_each_entry(tf, &g_tf_list, tf_list) {
- if (!strcmp(tf->tf_name, name)) {
+ if (!strcmp(tf->tf_ops->name, name)) {
atomic_inc(&tf->tf_access_cnt);
mutex_unlock(&g_tf_lock);
return tf;
@@ -193,29 +203,24 @@
return ERR_PTR(-EINVAL);
}
pr_debug("Target_Core_ConfigFS: REGISTER -> Located fabric:"
- " %s\n", tf->tf_name);
+ " %s\n", tf->tf_ops->name);
/*
* On a successful target_core_get_fabric() look, the returned
* struct target_fabric_configfs *tf will contain a usage reference.
*/
pr_debug("Target_Core_ConfigFS: REGISTER tfc_wwn_cit -> %p\n",
- &tf->tf_cit_tmpl.tfc_wwn_cit);
+ &tf->tf_wwn_cit);
tf->tf_group.default_groups = tf->tf_default_groups;
tf->tf_group.default_groups[0] = &tf->tf_disc_group;
tf->tf_group.default_groups[1] = NULL;
- config_group_init_type_name(&tf->tf_group, name,
- &tf->tf_cit_tmpl.tfc_wwn_cit);
+ config_group_init_type_name(&tf->tf_group, name, &tf->tf_wwn_cit);
config_group_init_type_name(&tf->tf_disc_group, "discovery_auth",
- &tf->tf_cit_tmpl.tfc_discovery_cit);
+ &tf->tf_discovery_cit);
pr_debug("Target_Core_ConfigFS: REGISTER -> Allocated Fabric:"
" %s\n", tf->tf_group.cg_item.ci_name);
- tf->tf_fabric = &tf->tf_group.cg_item;
- pr_debug("Target_Core_ConfigFS: REGISTER -> Set tf->tf_fabric"
- " for %s\n", name);
-
return &tf->tf_group;
}
@@ -236,13 +241,9 @@
" tf list\n", config_item_name(item));
pr_debug("Target_Core_ConfigFS: DEREGISTER -> located fabric:"
- " %s\n", tf->tf_name);
+ " %s\n", tf->tf_ops->name);
atomic_dec(&tf->tf_access_cnt);
- pr_debug("Target_Core_ConfigFS: DEREGISTER -> Releasing"
- " tf->tf_fabric for %s\n", tf->tf_name);
- tf->tf_fabric = NULL;
-
pr_debug("Target_Core_ConfigFS: DEREGISTER -> Releasing ci"
" %s\n", config_item_name(item));
@@ -318,10 +319,6 @@
pr_err("Missing tfo->get_fabric_name()\n");
return -EINVAL;
}
- if (!tfo->get_fabric_proto_ident) {
- pr_err("Missing tfo->get_fabric_proto_ident()\n");
- return -EINVAL;
- }
if (!tfo->tpg_get_wwn) {
pr_err("Missing tfo->tpg_get_wwn()\n");
return -EINVAL;
@@ -330,18 +327,6 @@
pr_err("Missing tfo->tpg_get_tag()\n");
return -EINVAL;
}
- if (!tfo->tpg_get_default_depth) {
- pr_err("Missing tfo->tpg_get_default_depth()\n");
- return -EINVAL;
- }
- if (!tfo->tpg_get_pr_transport_id) {
- pr_err("Missing tfo->tpg_get_pr_transport_id()\n");
- return -EINVAL;
- }
- if (!tfo->tpg_get_pr_transport_id_len) {
- pr_err("Missing tfo->tpg_get_pr_transport_id_len()\n");
- return -EINVAL;
- }
if (!tfo->tpg_check_demo_mode) {
pr_err("Missing tfo->tpg_check_demo_mode()\n");
return -EINVAL;
@@ -358,14 +343,6 @@
pr_err("Missing tfo->tpg_check_prod_mode_write_protect()\n");
return -EINVAL;
}
- if (!tfo->tpg_alloc_fabric_acl) {
- pr_err("Missing tfo->tpg_alloc_fabric_acl()\n");
- return -EINVAL;
- }
- if (!tfo->tpg_release_fabric_acl) {
- pr_err("Missing tfo->tpg_release_fabric_acl()\n");
- return -EINVAL;
- }
if (!tfo->tpg_get_inst_index) {
pr_err("Missing tfo->tpg_get_inst_index()\n");
return -EINVAL;
@@ -398,10 +375,6 @@
pr_err("Missing tfo->set_default_node_attributes()\n");
return -EINVAL;
}
- if (!tfo->get_task_tag) {
- pr_err("Missing tfo->get_task_tag()\n");
- return -EINVAL;
- }
if (!tfo->get_cmd_state) {
pr_err("Missing tfo->get_cmd_state()\n");
return -EINVAL;
@@ -464,15 +437,7 @@
INIT_LIST_HEAD(&tf->tf_list);
atomic_set(&tf->tf_access_cnt, 0);
-
- /*
- * Setup the default generic struct config_item_type's (cits) in
- * struct target_fabric_configfs->tf_cit_tmpl
- */
- tf->tf_module = fo->module;
- snprintf(tf->tf_name, TARGET_FABRIC_NAME_SIZE, "%s", fo->name);
-
- tf->tf_ops = *fo;
+ tf->tf_ops = fo;
target_fabric_setup_cits(tf);
mutex_lock(&g_tf_lock);
@@ -489,7 +454,7 @@
mutex_lock(&g_tf_lock);
list_for_each_entry(t, &g_tf_list, tf_list) {
- if (!strcmp(t->tf_name, fo->name)) {
+ if (!strcmp(t->tf_ops->name, fo->name)) {
BUG_ON(atomic_read(&t->tf_access_cnt));
list_del(&t->tf_list);
kfree(t);
@@ -505,16 +470,605 @@
//############################################################################*/
/* Start functions for struct config_item_type tb_dev_attrib_cit */
+#define DEF_TB_DEV_ATTRIB_SHOW(_name) \
+static ssize_t show_##_name(struct se_dev_attrib *da, char *page) \
+{ \
+ return snprintf(page, PAGE_SIZE, "%u\n", da->_name); \
+}
+
+DEF_TB_DEV_ATTRIB_SHOW(emulate_model_alias);
+DEF_TB_DEV_ATTRIB_SHOW(emulate_dpo);
+DEF_TB_DEV_ATTRIB_SHOW(emulate_fua_write);
+DEF_TB_DEV_ATTRIB_SHOW(emulate_fua_read);
+DEF_TB_DEV_ATTRIB_SHOW(emulate_write_cache);
+DEF_TB_DEV_ATTRIB_SHOW(emulate_ua_intlck_ctrl);
+DEF_TB_DEV_ATTRIB_SHOW(emulate_tas);
+DEF_TB_DEV_ATTRIB_SHOW(emulate_tpu);
+DEF_TB_DEV_ATTRIB_SHOW(emulate_tpws);
+DEF_TB_DEV_ATTRIB_SHOW(emulate_caw);
+DEF_TB_DEV_ATTRIB_SHOW(emulate_3pc);
+DEF_TB_DEV_ATTRIB_SHOW(pi_prot_type);
+DEF_TB_DEV_ATTRIB_SHOW(hw_pi_prot_type);
+DEF_TB_DEV_ATTRIB_SHOW(pi_prot_format);
+DEF_TB_DEV_ATTRIB_SHOW(enforce_pr_isids);
+DEF_TB_DEV_ATTRIB_SHOW(is_nonrot);
+DEF_TB_DEV_ATTRIB_SHOW(emulate_rest_reord);
+DEF_TB_DEV_ATTRIB_SHOW(force_pr_aptpl);
+DEF_TB_DEV_ATTRIB_SHOW(hw_block_size);
+DEF_TB_DEV_ATTRIB_SHOW(block_size);
+DEF_TB_DEV_ATTRIB_SHOW(hw_max_sectors);
+DEF_TB_DEV_ATTRIB_SHOW(optimal_sectors);
+DEF_TB_DEV_ATTRIB_SHOW(hw_queue_depth);
+DEF_TB_DEV_ATTRIB_SHOW(queue_depth);
+DEF_TB_DEV_ATTRIB_SHOW(max_unmap_lba_count);
+DEF_TB_DEV_ATTRIB_SHOW(max_unmap_block_desc_count);
+DEF_TB_DEV_ATTRIB_SHOW(unmap_granularity);
+DEF_TB_DEV_ATTRIB_SHOW(unmap_granularity_alignment);
+DEF_TB_DEV_ATTRIB_SHOW(max_write_same_len);
+
+#define DEF_TB_DEV_ATTRIB_STORE_U32(_name) \
+static ssize_t store_##_name(struct se_dev_attrib *da, const char *page,\
+ size_t count) \
+{ \
+ u32 val; \
+ int ret; \
+ \
+ ret = kstrtou32(page, 0, &val); \
+ if (ret < 0) \
+ return ret; \
+ da->_name = val; \
+ return count; \
+}
+
+DEF_TB_DEV_ATTRIB_STORE_U32(max_unmap_lba_count);
+DEF_TB_DEV_ATTRIB_STORE_U32(max_unmap_block_desc_count);
+DEF_TB_DEV_ATTRIB_STORE_U32(unmap_granularity);
+DEF_TB_DEV_ATTRIB_STORE_U32(unmap_granularity_alignment);
+DEF_TB_DEV_ATTRIB_STORE_U32(max_write_same_len);
+
+#define DEF_TB_DEV_ATTRIB_STORE_BOOL(_name) \
+static ssize_t store_##_name(struct se_dev_attrib *da, const char *page,\
+ size_t count) \
+{ \
+ bool flag; \
+ int ret; \
+ \
+ ret = strtobool(page, &flag); \
+ if (ret < 0) \
+ return ret; \
+ da->_name = flag; \
+ return count; \
+}
+
+DEF_TB_DEV_ATTRIB_STORE_BOOL(emulate_fua_write);
+DEF_TB_DEV_ATTRIB_STORE_BOOL(emulate_caw);
+DEF_TB_DEV_ATTRIB_STORE_BOOL(emulate_3pc);
+DEF_TB_DEV_ATTRIB_STORE_BOOL(enforce_pr_isids);
+DEF_TB_DEV_ATTRIB_STORE_BOOL(is_nonrot);
+
+#define DEF_TB_DEV_ATTRIB_STORE_STUB(_name) \
+static ssize_t store_##_name(struct se_dev_attrib *da, const char *page,\
+ size_t count) \
+{ \
+ printk_once(KERN_WARNING \
+ "ignoring deprecated ##_name## attribute\n"); \
+ return count; \
+}
+
+DEF_TB_DEV_ATTRIB_STORE_STUB(emulate_dpo);
+DEF_TB_DEV_ATTRIB_STORE_STUB(emulate_fua_read);
+
+static void dev_set_t10_wwn_model_alias(struct se_device *dev)
+{
+ const char *configname;
+
+ configname = config_item_name(&dev->dev_group.cg_item);
+ if (strlen(configname) >= 16) {
+ pr_warn("dev[%p]: Backstore name '%s' is too long for "
+ "INQUIRY_MODEL, truncating to 16 bytes\n", dev,
+ configname);
+ }
+ snprintf(&dev->t10_wwn.model[0], 16, "%s", configname);
+}
+
+static ssize_t store_emulate_model_alias(struct se_dev_attrib *da,
+ const char *page, size_t count)
+{
+ struct se_device *dev = da->da_dev;
+ bool flag;
+ int ret;
+
+ if (dev->export_count) {
+ pr_err("dev[%p]: Unable to change model alias"
+ " while export_count is %d\n",
+ dev, dev->export_count);
+ return -EINVAL;
+ }
+
+ ret = strtobool(page, &flag);
+ if (ret < 0)
+ return ret;
+
+ if (flag) {
+ dev_set_t10_wwn_model_alias(dev);
+ } else {
+ strncpy(&dev->t10_wwn.model[0],
+ dev->transport->inquiry_prod, 16);
+ }
+ da->emulate_model_alias = flag;
+ return count;
+}
+
+static ssize_t store_emulate_write_cache(struct se_dev_attrib *da,
+ const char *page, size_t count)
+{
+ bool flag;
+ int ret;
+
+ ret = strtobool(page, &flag);
+ if (ret < 0)
+ return ret;
+
+ if (flag && da->da_dev->transport->get_write_cache) {
+ pr_err("emulate_write_cache not supported for this device\n");
+ return -EINVAL;
+ }
+
+ da->emulate_write_cache = flag;
+ pr_debug("dev[%p]: SE Device WRITE_CACHE_EMULATION flag: %d\n",
+ da->da_dev, flag);
+ return count;
+}
+
+static ssize_t store_emulate_ua_intlck_ctrl(struct se_dev_attrib *da,
+ const char *page, size_t count)
+{
+ u32 val;
+ int ret;
+
+ ret = kstrtou32(page, 0, &val);
+ if (ret < 0)
+ return ret;
+
+ if (val != 0 && val != 1 && val != 2) {
+ pr_err("Illegal value %d\n", val);
+ return -EINVAL;
+ }
+
+ if (da->da_dev->export_count) {
+ pr_err("dev[%p]: Unable to change SE Device"
+ " UA_INTRLCK_CTRL while export_count is %d\n",
+ da->da_dev, da->da_dev->export_count);
+ return -EINVAL;
+ }
+ da->emulate_ua_intlck_ctrl = val;
+ pr_debug("dev[%p]: SE Device UA_INTRLCK_CTRL flag: %d\n",
+ da->da_dev, val);
+ return count;
+}
+
+static ssize_t store_emulate_tas(struct se_dev_attrib *da,
+ const char *page, size_t count)
+{
+ bool flag;
+ int ret;
+
+ ret = strtobool(page, &flag);
+ if (ret < 0)
+ return ret;
+
+ if (da->da_dev->export_count) {
+ pr_err("dev[%p]: Unable to change SE Device TAS while"
+ " export_count is %d\n",
+ da->da_dev, da->da_dev->export_count);
+ return -EINVAL;
+ }
+ da->emulate_tas = flag;
+ pr_debug("dev[%p]: SE Device TASK_ABORTED status bit: %s\n",
+ da->da_dev, flag ? "Enabled" : "Disabled");
+
+ return count;
+}
+
+static ssize_t store_emulate_tpu(struct se_dev_attrib *da,
+ const char *page, size_t count)
+{
+ bool flag;
+ int ret;
+
+ ret = strtobool(page, &flag);
+ if (ret < 0)
+ return ret;
+
+ /*
+ * We expect this value to be non-zero when generic Block Layer
+ * Discard supported is detected iblock_create_virtdevice().
+ */
+ if (flag && !da->max_unmap_block_desc_count) {
+ pr_err("Generic Block Discard not supported\n");
+ return -ENOSYS;
+ }
+
+ da->emulate_tpu = flag;
+ pr_debug("dev[%p]: SE Device Thin Provisioning UNMAP bit: %d\n",
+ da->da_dev, flag);
+ return count;
+}
+
+static ssize_t store_emulate_tpws(struct se_dev_attrib *da,
+ const char *page, size_t count)
+{
+ bool flag;
+ int ret;
+
+ ret = strtobool(page, &flag);
+ if (ret < 0)
+ return ret;
+
+ /*
+ * We expect this value to be non-zero when generic Block Layer
+ * Discard supported is detected iblock_create_virtdevice().
+ */
+ if (flag && !da->max_unmap_block_desc_count) {
+ pr_err("Generic Block Discard not supported\n");
+ return -ENOSYS;
+ }
+
+ da->emulate_tpws = flag;
+ pr_debug("dev[%p]: SE Device Thin Provisioning WRITE_SAME: %d\n",
+ da->da_dev, flag);
+ return count;
+}
+
+static ssize_t store_pi_prot_type(struct se_dev_attrib *da,
+ const char *page, size_t count)
+{
+ int old_prot = da->pi_prot_type, ret;
+ struct se_device *dev = da->da_dev;
+ u32 flag;
+
+ ret = kstrtou32(page, 0, &flag);
+ if (ret < 0)
+ return ret;
+
+ if (flag != 0 && flag != 1 && flag != 2 && flag != 3) {
+ pr_err("Illegal value %d for pi_prot_type\n", flag);
+ return -EINVAL;
+ }
+ if (flag == 2) {
+ pr_err("DIF TYPE2 protection currently not supported\n");
+ return -ENOSYS;
+ }
+ if (da->hw_pi_prot_type) {
+ pr_warn("DIF protection enabled on underlying hardware,"
+ " ignoring\n");
+ return count;
+ }
+ if (!dev->transport->init_prot || !dev->transport->free_prot) {
+ /* 0 is only allowed value for non-supporting backends */
+ if (flag == 0)
+ return 0;
+
+ pr_err("DIF protection not supported by backend: %s\n",
+ dev->transport->name);
+ return -ENOSYS;
+ }
+ if (!(dev->dev_flags & DF_CONFIGURED)) {
+ pr_err("DIF protection requires device to be configured\n");
+ return -ENODEV;
+ }
+ if (dev->export_count) {
+ pr_err("dev[%p]: Unable to change SE Device PROT type while"
+ " export_count is %d\n", dev, dev->export_count);
+ return -EINVAL;
+ }
+
+ da->pi_prot_type = flag;
+
+ if (flag && !old_prot) {
+ ret = dev->transport->init_prot(dev);
+ if (ret) {
+ da->pi_prot_type = old_prot;
+ return ret;
+ }
+
+ } else if (!flag && old_prot) {
+ dev->transport->free_prot(dev);
+ }
+
+ pr_debug("dev[%p]: SE Device Protection Type: %d\n", dev, flag);
+ return count;
+}
+
+static ssize_t store_pi_prot_format(struct se_dev_attrib *da,
+ const char *page, size_t count)
+{
+ struct se_device *dev = da->da_dev;
+ bool flag;
+ int ret;
+
+ ret = strtobool(page, &flag);
+ if (ret < 0)
+ return ret;
+
+ if (!flag)
+ return count;
+
+ if (!dev->transport->format_prot) {
+ pr_err("DIF protection format not supported by backend %s\n",
+ dev->transport->name);
+ return -ENOSYS;
+ }
+ if (!(dev->dev_flags & DF_CONFIGURED)) {
+ pr_err("DIF protection format requires device to be configured\n");
+ return -ENODEV;
+ }
+ if (dev->export_count) {
+ pr_err("dev[%p]: Unable to format SE Device PROT type while"
+ " export_count is %d\n", dev, dev->export_count);
+ return -EINVAL;
+ }
+
+ ret = dev->transport->format_prot(dev);
+ if (ret)
+ return ret;
+
+ pr_debug("dev[%p]: SE Device Protection Format complete\n", dev);
+ return count;
+}
+
+static ssize_t store_force_pr_aptpl(struct se_dev_attrib *da,
+ const char *page, size_t count)
+{
+ bool flag;
+ int ret;
+
+ ret = strtobool(page, &flag);
+ if (ret < 0)
+ return ret;
+ if (da->da_dev->export_count) {
+ pr_err("dev[%p]: Unable to set force_pr_aptpl while"
+ " export_count is %d\n",
+ da->da_dev, da->da_dev->export_count);
+ return -EINVAL;
+ }
+
+ da->force_pr_aptpl = flag;
+ pr_debug("dev[%p]: SE Device force_pr_aptpl: %d\n", da->da_dev, flag);
+ return count;
+}
+
+static ssize_t store_emulate_rest_reord(struct se_dev_attrib *da,
+ const char *page, size_t count)
+{
+ bool flag;
+ int ret;
+
+ ret = strtobool(page, &flag);
+ if (ret < 0)
+ return ret;
+
+ if (flag != 0) {
+ printk(KERN_ERR "dev[%p]: SE Device emulation of restricted"
+ " reordering not implemented\n", da->da_dev);
+ return -ENOSYS;
+ }
+ da->emulate_rest_reord = flag;
+ pr_debug("dev[%p]: SE Device emulate_rest_reord: %d\n",
+ da->da_dev, flag);
+ return count;
+}
+
+/*
+ * Note, this can only be called on unexported SE Device Object.
+ */
+static ssize_t store_queue_depth(struct se_dev_attrib *da,
+ const char *page, size_t count)
+{
+ struct se_device *dev = da->da_dev;
+ u32 val;
+ int ret;
+
+ ret = kstrtou32(page, 0, &val);
+ if (ret < 0)
+ return ret;
+
+ if (dev->export_count) {
+ pr_err("dev[%p]: Unable to change SE Device TCQ while"
+ " export_count is %d\n",
+ dev, dev->export_count);
+ return -EINVAL;
+ }
+ if (!val) {
+ pr_err("dev[%p]: Illegal ZERO value for queue_depth\n", dev);
+ return -EINVAL;
+ }
+
+ if (val > dev->dev_attrib.queue_depth) {
+ if (val > dev->dev_attrib.hw_queue_depth) {
+ pr_err("dev[%p]: Passed queue_depth:"
+ " %u exceeds TCM/SE_Device MAX"
+ " TCQ: %u\n", dev, val,
+ dev->dev_attrib.hw_queue_depth);
+ return -EINVAL;
+ }
+ }
+ da->queue_depth = dev->queue_depth = val;
+ pr_debug("dev[%p]: SE Device TCQ Depth changed to: %u\n", dev, val);
+ return count;
+}
+
+static ssize_t store_optimal_sectors(struct se_dev_attrib *da,
+ const char *page, size_t count)
+{
+ u32 val;
+ int ret;
+
+ ret = kstrtou32(page, 0, &val);
+ if (ret < 0)
+ return ret;
+
+ if (da->da_dev->export_count) {
+ pr_err("dev[%p]: Unable to change SE Device"
+ " optimal_sectors while export_count is %d\n",
+ da->da_dev, da->da_dev->export_count);
+ return -EINVAL;
+ }
+ if (val > da->hw_max_sectors) {
+ pr_err("dev[%p]: Passed optimal_sectors %u cannot be"
+ " greater than hw_max_sectors: %u\n",
+ da->da_dev, val, da->hw_max_sectors);
+ return -EINVAL;
+ }
+
+ da->optimal_sectors = val;
+ pr_debug("dev[%p]: SE Device optimal_sectors changed to %u\n",
+ da->da_dev, val);
+ return count;
+}
+
+static ssize_t store_block_size(struct se_dev_attrib *da,
+ const char *page, size_t count)
+{
+ u32 val;
+ int ret;
+
+ ret = kstrtou32(page, 0, &val);
+ if (ret < 0)
+ return ret;
+
+ if (da->da_dev->export_count) {
+ pr_err("dev[%p]: Unable to change SE Device block_size"
+ " while export_count is %d\n",
+ da->da_dev, da->da_dev->export_count);
+ return -EINVAL;
+ }
+
+ if (val != 512 && val != 1024 && val != 2048 && val != 4096) {
+ pr_err("dev[%p]: Illegal value for block_device: %u"
+ " for SE device, must be 512, 1024, 2048 or 4096\n",
+ da->da_dev, val);
+ return -EINVAL;
+ }
+
+ da->block_size = val;
+ if (da->max_bytes_per_io)
+ da->hw_max_sectors = da->max_bytes_per_io / val;
+
+ pr_debug("dev[%p]: SE Device block_size changed to %u\n",
+ da->da_dev, val);
+ return count;
+}
+
+CONFIGFS_EATTR_STRUCT(target_backend_dev_attrib, se_dev_attrib);
+#define TB_DEV_ATTR(_backend, _name, _mode) \
+static struct target_backend_dev_attrib_attribute _backend##_dev_attrib_##_name = \
+ __CONFIGFS_EATTR(_name, _mode, \
+ show_##_name, \
+ store_##_name);
+
+#define TB_DEV_ATTR_RO(_backend, _name) \
+static struct target_backend_dev_attrib_attribute _backend##_dev_attrib_##_name = \
+ __CONFIGFS_EATTR_RO(_name, \
+ show_##_name);
+
+TB_DEV_ATTR(target_core, emulate_model_alias, S_IRUGO | S_IWUSR);
+TB_DEV_ATTR(target_core, emulate_dpo, S_IRUGO | S_IWUSR);
+TB_DEV_ATTR(target_core, emulate_fua_write, S_IRUGO | S_IWUSR);
+TB_DEV_ATTR(target_core, emulate_fua_read, S_IRUGO | S_IWUSR);
+TB_DEV_ATTR(target_core, emulate_write_cache, S_IRUGO | S_IWUSR);
+TB_DEV_ATTR(target_core, emulate_ua_intlck_ctrl, S_IRUGO | S_IWUSR);
+TB_DEV_ATTR(target_core, emulate_tas, S_IRUGO | S_IWUSR);
+TB_DEV_ATTR(target_core, emulate_tpu, S_IRUGO | S_IWUSR);
+TB_DEV_ATTR(target_core, emulate_tpws, S_IRUGO | S_IWUSR);
+TB_DEV_ATTR(target_core, emulate_caw, S_IRUGO | S_IWUSR);
+TB_DEV_ATTR(target_core, emulate_3pc, S_IRUGO | S_IWUSR);
+TB_DEV_ATTR(target_core, pi_prot_type, S_IRUGO | S_IWUSR);
+TB_DEV_ATTR_RO(target_core, hw_pi_prot_type);
+TB_DEV_ATTR(target_core, pi_prot_format, S_IRUGO | S_IWUSR);
+TB_DEV_ATTR(target_core, enforce_pr_isids, S_IRUGO | S_IWUSR);
+TB_DEV_ATTR(target_core, is_nonrot, S_IRUGO | S_IWUSR);
+TB_DEV_ATTR(target_core, emulate_rest_reord, S_IRUGO | S_IWUSR);
+TB_DEV_ATTR(target_core, force_pr_aptpl, S_IRUGO | S_IWUSR)
+TB_DEV_ATTR_RO(target_core, hw_block_size);
+TB_DEV_ATTR(target_core, block_size, S_IRUGO | S_IWUSR)
+TB_DEV_ATTR_RO(target_core, hw_max_sectors);
+TB_DEV_ATTR(target_core, optimal_sectors, S_IRUGO | S_IWUSR);
+TB_DEV_ATTR_RO(target_core, hw_queue_depth);
+TB_DEV_ATTR(target_core, queue_depth, S_IRUGO | S_IWUSR);
+TB_DEV_ATTR(target_core, max_unmap_lba_count, S_IRUGO | S_IWUSR);
+TB_DEV_ATTR(target_core, max_unmap_block_desc_count, S_IRUGO | S_IWUSR);
+TB_DEV_ATTR(target_core, unmap_granularity, S_IRUGO | S_IWUSR);
+TB_DEV_ATTR(target_core, unmap_granularity_alignment, S_IRUGO | S_IWUSR);
+TB_DEV_ATTR(target_core, max_write_same_len, S_IRUGO | S_IWUSR);
CONFIGFS_EATTR_STRUCT(target_core_dev_attrib, se_dev_attrib);
CONFIGFS_EATTR_OPS(target_core_dev_attrib, se_dev_attrib, da_group);
+/*
+ * dev_attrib attributes for devices using the target core SBC/SPC
+ * interpreter. Any backend using spc_parse_cdb should be using
+ * these.
+ */
+struct configfs_attribute *sbc_attrib_attrs[] = {
+ &target_core_dev_attrib_emulate_model_alias.attr,
+ &target_core_dev_attrib_emulate_dpo.attr,
+ &target_core_dev_attrib_emulate_fua_write.attr,
+ &target_core_dev_attrib_emulate_fua_read.attr,
+ &target_core_dev_attrib_emulate_write_cache.attr,
+ &target_core_dev_attrib_emulate_ua_intlck_ctrl.attr,
+ &target_core_dev_attrib_emulate_tas.attr,
+ &target_core_dev_attrib_emulate_tpu.attr,
+ &target_core_dev_attrib_emulate_tpws.attr,
+ &target_core_dev_attrib_emulate_caw.attr,
+ &target_core_dev_attrib_emulate_3pc.attr,
+ &target_core_dev_attrib_pi_prot_type.attr,
+ &target_core_dev_attrib_hw_pi_prot_type.attr,
+ &target_core_dev_attrib_pi_prot_format.attr,
+ &target_core_dev_attrib_enforce_pr_isids.attr,
+ &target_core_dev_attrib_is_nonrot.attr,
+ &target_core_dev_attrib_emulate_rest_reord.attr,
+ &target_core_dev_attrib_force_pr_aptpl.attr,
+ &target_core_dev_attrib_hw_block_size.attr,
+ &target_core_dev_attrib_block_size.attr,
+ &target_core_dev_attrib_hw_max_sectors.attr,
+ &target_core_dev_attrib_optimal_sectors.attr,
+ &target_core_dev_attrib_hw_queue_depth.attr,
+ &target_core_dev_attrib_queue_depth.attr,
+ &target_core_dev_attrib_max_unmap_lba_count.attr,
+ &target_core_dev_attrib_max_unmap_block_desc_count.attr,
+ &target_core_dev_attrib_unmap_granularity.attr,
+ &target_core_dev_attrib_unmap_granularity_alignment.attr,
+ &target_core_dev_attrib_max_write_same_len.attr,
+ NULL,
+};
+EXPORT_SYMBOL(sbc_attrib_attrs);
+
+TB_DEV_ATTR_RO(target_pt, hw_pi_prot_type);
+TB_DEV_ATTR_RO(target_pt, hw_block_size);
+TB_DEV_ATTR_RO(target_pt, hw_max_sectors);
+TB_DEV_ATTR_RO(target_pt, hw_queue_depth);
+
+/*
+ * Minimal dev_attrib attributes for devices passing through CDBs.
+ * In this case we only provide a few read-only attributes for
+ * backwards compatibility.
+ */
+struct configfs_attribute *passthrough_attrib_attrs[] = {
+ &target_pt_dev_attrib_hw_pi_prot_type.attr,
+ &target_pt_dev_attrib_hw_block_size.attr,
+ &target_pt_dev_attrib_hw_max_sectors.attr,
+ &target_pt_dev_attrib_hw_queue_depth.attr,
+ NULL,
+};
+EXPORT_SYMBOL(passthrough_attrib_attrs);
+
static struct configfs_item_operations target_core_dev_attrib_ops = {
.show_attribute = target_core_dev_attrib_attr_show,
.store_attribute = target_core_dev_attrib_attr_store,
};
-TB_CIT_SETUP(dev_attrib, &target_core_dev_attrib_ops, NULL, NULL);
+TB_CIT_SETUP_DRV(dev_attrib, &target_core_dev_attrib_ops, NULL);
/* End functions for struct config_item_type tb_dev_attrib_cit */
@@ -862,7 +1416,6 @@
struct se_device *dev, char *page)
{
struct se_node_acl *se_nacl;
- struct se_lun *lun;
struct se_portal_group *se_tpg;
struct t10_pr_registration *pr_reg;
const struct target_core_fabric_ops *tfo;
@@ -877,7 +1430,6 @@
se_nacl = pr_reg->pr_reg_nacl;
se_tpg = se_nacl->se_tpg;
- lun = pr_reg->pr_reg_tg_pt_lun;
tfo = se_tpg->se_tpg_tfo;
len += sprintf(page+len, "SPC-3 Reservation: %s"
@@ -885,9 +1437,9 @@
tfo->tpg_get_wwn(se_tpg));
len += sprintf(page+len, "SPC-3 Reservation: Relative Port"
" Identifier Tag: %hu %s Portal Group Tag: %hu"
- " %s Logical Unit: %u\n", lun->lun_sep->sep_rtpi,
+ " %s Logical Unit: %llu\n", pr_reg->tg_pt_sep_rtpi,
tfo->get_fabric_name(), tfo->tpg_get_tag(se_tpg),
- tfo->get_fabric_name(), lun->unpacked_lun);
+ tfo->get_fabric_name(), pr_reg->pr_aptpl_target_lun);
out_unlock:
spin_unlock(&dev->dev_reservation_lock);
@@ -1012,12 +1564,12 @@
{Opt_res_type, "res_type=%d"},
{Opt_res_scope, "res_scope=%d"},
{Opt_res_all_tg_pt, "res_all_tg_pt=%d"},
- {Opt_mapped_lun, "mapped_lun=%d"},
+ {Opt_mapped_lun, "mapped_lun=%lld"},
{Opt_target_fabric, "target_fabric=%s"},
{Opt_target_node, "target_node=%s"},
{Opt_tpgt, "tpgt=%d"},
{Opt_port_rtpi, "port_rtpi=%d"},
- {Opt_target_lun, "target_lun=%d"},
+ {Opt_target_lun, "target_lun=%lld"},
{Opt_err, NULL}
};
@@ -1032,10 +1584,10 @@
substring_t args[MAX_OPT_ARGS];
unsigned long long tmp_ll;
u64 sa_res_key = 0;
- u32 mapped_lun = 0, target_lun = 0;
+ u64 mapped_lun = 0, target_lun = 0;
int ret = -1, res_holder = 0, all_tg_pt = 0, arg, token;
- u16 port_rpti = 0, tpgt = 0;
- u8 type = 0, scope;
+ u16 tpgt = 0;
+ u8 type = 0;
if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH)
return 0;
@@ -1115,7 +1667,6 @@
break;
case Opt_res_scope:
match_int(args, &arg);
- scope = (u8)arg;
break;
case Opt_res_all_tg_pt:
match_int(args, &arg);
@@ -1123,7 +1674,7 @@
break;
case Opt_mapped_lun:
match_int(args, &arg);
- mapped_lun = (u32)arg;
+ mapped_lun = (u64)arg;
break;
/*
* PR APTPL Metadata for Target Port
@@ -1155,11 +1706,10 @@
break;
case Opt_port_rtpi:
match_int(args, &arg);
- port_rpti = (u16)arg;
break;
case Opt_target_lun:
match_int(args, &arg);
- target_lun = (u32)arg;
+ target_lun = (u64)arg;
break;
default:
break;
@@ -1223,13 +1773,13 @@
static ssize_t target_core_show_dev_info(void *p, char *page)
{
struct se_device *dev = p;
- struct se_subsystem_api *t = dev->transport;
int bl = 0;
ssize_t read_bytes = 0;
transport_dump_dev_state(dev, page, &bl);
read_bytes += bl;
- read_bytes += t->show_configfs_dev_params(dev, page+read_bytes);
+ read_bytes += dev->transport->show_configfs_dev_params(dev,
+ page+read_bytes);
return read_bytes;
}
@@ -1247,9 +1797,8 @@
size_t count)
{
struct se_device *dev = p;
- struct se_subsystem_api *t = dev->transport;
- return t->set_configfs_dev_params(dev, page, count);
+ return dev->transport->set_configfs_dev_params(dev, page, count);
}
static struct target_core_configfs_attribute target_core_attr_dev_control = {
@@ -2339,21 +2888,16 @@
struct t10_alua_tg_pt_gp *tg_pt_gp,
char *page)
{
- struct se_port *port;
- struct se_portal_group *tpg;
struct se_lun *lun;
- struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem;
ssize_t len = 0, cur_len;
unsigned char buf[TG_PT_GROUP_NAME_BUF];
memset(buf, 0, TG_PT_GROUP_NAME_BUF);
spin_lock(&tg_pt_gp->tg_pt_gp_lock);
- list_for_each_entry(tg_pt_gp_mem, &tg_pt_gp->tg_pt_gp_mem_list,
- tg_pt_gp_mem_list) {
- port = tg_pt_gp_mem->tg_pt;
- tpg = port->sep_tpg;
- lun = port->sep_lun;
+ list_for_each_entry(lun, &tg_pt_gp->tg_pt_gp_lun_list,
+ lun_tg_pt_gp_link) {
+ struct se_portal_group *tpg = lun->lun_tpg;
cur_len = snprintf(buf, TG_PT_GROUP_NAME_BUF, "%s/%s/tpgt_%hu"
"/%s\n", tpg->se_tpg_tfo->get_fabric_name(),
@@ -2526,9 +3070,9 @@
const char *name)
{
struct t10_alua_tg_pt_gp *tg_pt_gp;
- struct se_subsystem_api *t;
struct config_item *hba_ci = &group->cg_item;
struct se_hba *hba = item_to_hba(hba_ci);
+ struct target_backend *tb = hba->backend;
struct se_device *dev;
struct config_group *dev_cg = NULL, *tg_pt_gp_cg = NULL;
struct config_group *dev_stat_grp = NULL;
@@ -2537,10 +3081,6 @@
ret = mutex_lock_interruptible(&hba->hba_access_mutex);
if (ret)
return ERR_PTR(ret);
- /*
- * Locate the struct se_subsystem_api from parent's struct se_hba.
- */
- t = hba->transport;
dev = target_alloc_device(hba, name);
if (!dev)
@@ -2553,17 +3093,17 @@
if (!dev_cg->default_groups)
goto out_free_device;
- config_group_init_type_name(dev_cg, name, &t->tb_cits.tb_dev_cit);
+ config_group_init_type_name(dev_cg, name, &tb->tb_dev_cit);
config_group_init_type_name(&dev->dev_attrib.da_group, "attrib",
- &t->tb_cits.tb_dev_attrib_cit);
+ &tb->tb_dev_attrib_cit);
config_group_init_type_name(&dev->dev_pr_group, "pr",
- &t->tb_cits.tb_dev_pr_cit);
+ &tb->tb_dev_pr_cit);
config_group_init_type_name(&dev->t10_wwn.t10_wwn_group, "wwn",
- &t->tb_cits.tb_dev_wwn_cit);
+ &tb->tb_dev_wwn_cit);
config_group_init_type_name(&dev->t10_alua.alua_tg_pt_gps_group,
- "alua", &t->tb_cits.tb_dev_alua_tg_pt_gps_cit);
+ "alua", &tb->tb_dev_alua_tg_pt_gps_cit);
config_group_init_type_name(&dev->dev_stat_grps.stat_group,
- "statistics", &t->tb_cits.tb_dev_stat_cit);
+ "statistics", &tb->tb_dev_stat_cit);
dev_cg->default_groups[0] = &dev->dev_attrib.da_group;
dev_cg->default_groups[1] = &dev->dev_pr_group;
@@ -2693,8 +3233,8 @@
char *page)
{
return sprintf(page, "HBA Index: %d plugin: %s version: %s\n",
- hba->hba_id, hba->transport->name,
- TARGET_CORE_CONFIGFS_VERSION);
+ hba->hba_id, hba->backend->ops->name,
+ TARGET_CORE_VERSION);
}
SE_HBA_ATTR_RO(hba_info);
@@ -2713,11 +3253,10 @@
static ssize_t target_core_hba_store_attr_hba_mode(struct se_hba *hba,
const char *page, size_t count)
{
- struct se_subsystem_api *transport = hba->transport;
unsigned long mode_flag;
int ret;
- if (transport->pmode_enable_hba == NULL)
+ if (hba->backend->ops->pmode_enable_hba == NULL)
return -EINVAL;
ret = kstrtoul(page, 0, &mode_flag);
@@ -2731,7 +3270,7 @@
return -EINVAL;
}
- ret = transport->pmode_enable_hba(hba, mode_flag);
+ ret = hba->backend->ops->pmode_enable_hba(hba, mode_flag);
if (ret < 0)
return -EINVAL;
if (ret > 0)
@@ -2857,16 +3396,15 @@
/* Stop functions for struct config_item_type target_core_hba_cit */
-void target_core_setup_sub_cits(struct se_subsystem_api *sa)
+void target_setup_backend_cits(struct target_backend *tb)
{
- target_core_setup_dev_cit(sa);
- target_core_setup_dev_attrib_cit(sa);
- target_core_setup_dev_pr_cit(sa);
- target_core_setup_dev_wwn_cit(sa);
- target_core_setup_dev_alua_tg_pt_gps_cit(sa);
- target_core_setup_dev_stat_cit(sa);
+ target_core_setup_dev_cit(tb);
+ target_core_setup_dev_attrib_cit(tb);
+ target_core_setup_dev_pr_cit(tb);
+ target_core_setup_dev_wwn_cit(tb);
+ target_core_setup_dev_alua_tg_pt_gps_cit(tb);
+ target_core_setup_dev_stat_cit(tb);
}
-EXPORT_SYMBOL(target_core_setup_sub_cits);
static int __init target_core_init_configfs(void)
{
@@ -2968,7 +3506,7 @@
goto out_global;
}
pr_debug("TARGET_CORE[0]: Initialized ConfigFS Fabric"
- " Infrastructure: "TARGET_CORE_CONFIGFS_VERSION" on %s/%s"
+ " Infrastructure: "TARGET_CORE_VERSION" on %s/%s"
" on "UTS_RELEASE"\n", utsname()->sysname, utsname()->machine);
/*
* Register built-in RAMDISK subsystem logic for virtual LUN 0
diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c
index 417f88b..09e682b 100644
--- a/drivers/target/target_core_device.c
+++ b/drivers/target/target_core_device.c
@@ -56,40 +56,37 @@
struct se_device *g_lun0_dev;
sense_reason_t
-transport_lookup_cmd_lun(struct se_cmd *se_cmd, u32 unpacked_lun)
+transport_lookup_cmd_lun(struct se_cmd *se_cmd, u64 unpacked_lun)
{
struct se_lun *se_lun = NULL;
struct se_session *se_sess = se_cmd->se_sess;
- struct se_device *dev;
- unsigned long flags;
+ struct se_node_acl *nacl = se_sess->se_node_acl;
+ struct se_dev_entry *deve;
- if (unpacked_lun >= TRANSPORT_MAX_LUNS_PER_TPG)
- return TCM_NON_EXISTENT_LUN;
-
- spin_lock_irqsave(&se_sess->se_node_acl->device_list_lock, flags);
- se_cmd->se_deve = se_sess->se_node_acl->device_list[unpacked_lun];
- if (se_cmd->se_deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS) {
- struct se_dev_entry *deve = se_cmd->se_deve;
-
- deve->total_cmds++;
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, unpacked_lun);
+ if (deve) {
+ atomic_long_inc(&deve->total_cmds);
if ((se_cmd->data_direction == DMA_TO_DEVICE) &&
(deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY)) {
pr_err("TARGET_CORE[%s]: Detected WRITE_PROTECTED LUN"
- " Access for 0x%08x\n",
+ " Access for 0x%08llx\n",
se_cmd->se_tfo->get_fabric_name(),
unpacked_lun);
- spin_unlock_irqrestore(&se_sess->se_node_acl->device_list_lock, flags);
+ rcu_read_unlock();
return TCM_WRITE_PROTECTED;
}
if (se_cmd->data_direction == DMA_TO_DEVICE)
- deve->write_bytes += se_cmd->data_length;
+ atomic_long_add(se_cmd->data_length,
+ &deve->write_bytes);
else if (se_cmd->data_direction == DMA_FROM_DEVICE)
- deve->read_bytes += se_cmd->data_length;
+ atomic_long_add(se_cmd->data_length,
+ &deve->read_bytes);
- se_lun = deve->se_lun;
- se_cmd->se_lun = deve->se_lun;
+ se_lun = rcu_dereference(deve->se_lun);
+ se_cmd->se_lun = rcu_dereference(deve->se_lun);
se_cmd->pr_res_key = deve->pr_res_key;
se_cmd->orig_fe_lun = unpacked_lun;
se_cmd->se_cmd_flags |= SCF_SE_LUN_CMD;
@@ -97,7 +94,7 @@
percpu_ref_get(&se_lun->lun_ref);
se_cmd->lun_ref_active = true;
}
- spin_unlock_irqrestore(&se_sess->se_node_acl->device_list_lock, flags);
+ rcu_read_unlock();
if (!se_lun) {
/*
@@ -107,7 +104,7 @@
*/
if (unpacked_lun != 0) {
pr_err("TARGET_CORE[%s]: Detected NON_EXISTENT_LUN"
- " Access for 0x%08x\n",
+ " Access for 0x%08llx\n",
se_cmd->se_tfo->get_fabric_name(),
unpacked_lun);
return TCM_NON_EXISTENT_LUN;
@@ -119,64 +116,66 @@
(se_cmd->data_direction != DMA_NONE))
return TCM_WRITE_PROTECTED;
- se_lun = &se_sess->se_tpg->tpg_virt_lun0;
- se_cmd->se_lun = &se_sess->se_tpg->tpg_virt_lun0;
+ se_lun = se_sess->se_tpg->tpg_virt_lun0;
+ se_cmd->se_lun = se_sess->se_tpg->tpg_virt_lun0;
se_cmd->orig_fe_lun = 0;
se_cmd->se_cmd_flags |= SCF_SE_LUN_CMD;
percpu_ref_get(&se_lun->lun_ref);
se_cmd->lun_ref_active = true;
}
+ /*
+ * RCU reference protected by percpu se_lun->lun_ref taken above that
+ * must drop to zero (including initial reference) before this se_lun
+ * pointer can be kfree_rcu() by the final se_lun->lun_group put via
+ * target_core_fabric_configfs.c:target_fabric_port_release
+ */
+ se_cmd->se_dev = rcu_dereference_raw(se_lun->lun_se_dev);
+ atomic_long_inc(&se_cmd->se_dev->num_cmds);
- /* Directly associate cmd with se_dev */
- se_cmd->se_dev = se_lun->lun_se_dev;
-
- dev = se_lun->lun_se_dev;
- atomic_long_inc(&dev->num_cmds);
if (se_cmd->data_direction == DMA_TO_DEVICE)
- atomic_long_add(se_cmd->data_length, &dev->write_bytes);
+ atomic_long_add(se_cmd->data_length,
+ &se_cmd->se_dev->write_bytes);
else if (se_cmd->data_direction == DMA_FROM_DEVICE)
- atomic_long_add(se_cmd->data_length, &dev->read_bytes);
+ atomic_long_add(se_cmd->data_length,
+ &se_cmd->se_dev->read_bytes);
return 0;
}
EXPORT_SYMBOL(transport_lookup_cmd_lun);
-int transport_lookup_tmr_lun(struct se_cmd *se_cmd, u32 unpacked_lun)
+int transport_lookup_tmr_lun(struct se_cmd *se_cmd, u64 unpacked_lun)
{
struct se_dev_entry *deve;
struct se_lun *se_lun = NULL;
struct se_session *se_sess = se_cmd->se_sess;
+ struct se_node_acl *nacl = se_sess->se_node_acl;
struct se_tmr_req *se_tmr = se_cmd->se_tmr_req;
unsigned long flags;
- if (unpacked_lun >= TRANSPORT_MAX_LUNS_PER_TPG)
- return -ENODEV;
-
- spin_lock_irqsave(&se_sess->se_node_acl->device_list_lock, flags);
- se_cmd->se_deve = se_sess->se_node_acl->device_list[unpacked_lun];
- deve = se_cmd->se_deve;
-
- if (deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS) {
- se_tmr->tmr_lun = deve->se_lun;
- se_cmd->se_lun = deve->se_lun;
- se_lun = deve->se_lun;
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, unpacked_lun);
+ if (deve) {
+ se_tmr->tmr_lun = rcu_dereference(deve->se_lun);
+ se_cmd->se_lun = rcu_dereference(deve->se_lun);
+ se_lun = rcu_dereference(deve->se_lun);
se_cmd->pr_res_key = deve->pr_res_key;
se_cmd->orig_fe_lun = unpacked_lun;
}
- spin_unlock_irqrestore(&se_sess->se_node_acl->device_list_lock, flags);
+ rcu_read_unlock();
if (!se_lun) {
pr_debug("TARGET_CORE[%s]: Detected NON_EXISTENT_LUN"
- " Access for 0x%08x\n",
+ " Access for 0x%08llx\n",
se_cmd->se_tfo->get_fabric_name(),
unpacked_lun);
return -ENODEV;
}
-
- /* Directly associate cmd with se_dev */
- se_cmd->se_dev = se_lun->lun_se_dev;
- se_tmr->tmr_dev = se_lun->lun_se_dev;
+ /*
+ * XXX: Add percpu se_lun->lun_ref reference count for TMR
+ */
+ se_cmd->se_dev = rcu_dereference_raw(se_lun->lun_se_dev);
+ se_tmr->tmr_dev = rcu_dereference_raw(se_lun->lun_se_dev);
spin_lock_irqsave(&se_tmr->tmr_dev->se_tmr_lock, flags);
list_add_tail(&se_tmr->tmr_list, &se_tmr->tmr_dev->dev_tmr_list);
@@ -186,9 +185,24 @@
}
EXPORT_SYMBOL(transport_lookup_tmr_lun);
+bool target_lun_is_rdonly(struct se_cmd *cmd)
+{
+ struct se_session *se_sess = cmd->se_sess;
+ struct se_dev_entry *deve;
+ bool ret;
+
+ rcu_read_lock();
+ deve = target_nacl_find_deve(se_sess->se_node_acl, cmd->orig_fe_lun);
+ ret = (deve && deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY);
+ rcu_read_unlock();
+
+ return ret;
+}
+EXPORT_SYMBOL(target_lun_is_rdonly);
+
/*
* This function is called from core_scsi3_emulate_pro_register_and_move()
- * and core_scsi3_decode_spec_i_port(), and will increment &deve->pr_ref_count
+ * and core_scsi3_decode_spec_i_port(), and will increment &deve->pr_kref
* when a matching rtpi is found.
*/
struct se_dev_entry *core_get_se_deve_from_rtpi(
@@ -197,143 +211,55 @@
{
struct se_dev_entry *deve;
struct se_lun *lun;
- struct se_port *port;
struct se_portal_group *tpg = nacl->se_tpg;
- u32 i;
- spin_lock_irq(&nacl->device_list_lock);
- for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) {
- deve = nacl->device_list[i];
-
- if (!(deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS))
- continue;
-
- lun = deve->se_lun;
+ rcu_read_lock();
+ hlist_for_each_entry_rcu(deve, &nacl->lun_entry_hlist, link) {
+ lun = rcu_dereference(deve->se_lun);
if (!lun) {
pr_err("%s device entries device pointer is"
" NULL, but Initiator has access.\n",
tpg->se_tpg_tfo->get_fabric_name());
continue;
}
- port = lun->lun_sep;
- if (!port) {
- pr_err("%s device entries device pointer is"
- " NULL, but Initiator has access.\n",
- tpg->se_tpg_tfo->get_fabric_name());
- continue;
- }
- if (port->sep_rtpi != rtpi)
+ if (lun->lun_rtpi != rtpi)
continue;
- atomic_inc_mb(&deve->pr_ref_count);
- spin_unlock_irq(&nacl->device_list_lock);
+ kref_get(&deve->pr_kref);
+ rcu_read_unlock();
return deve;
}
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_unlock();
return NULL;
}
-int core_free_device_list_for_node(
+void core_free_device_list_for_node(
struct se_node_acl *nacl,
struct se_portal_group *tpg)
{
struct se_dev_entry *deve;
- struct se_lun *lun;
- u32 i;
- if (!nacl->device_list)
- return 0;
-
- spin_lock_irq(&nacl->device_list_lock);
- for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) {
- deve = nacl->device_list[i];
-
- if (!(deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS))
- continue;
-
- if (!deve->se_lun) {
- pr_err("%s device entries device pointer is"
- " NULL, but Initiator has access.\n",
- tpg->se_tpg_tfo->get_fabric_name());
- continue;
- }
- lun = deve->se_lun;
-
- spin_unlock_irq(&nacl->device_list_lock);
- core_disable_device_list_for_node(lun, NULL, deve->mapped_lun,
- TRANSPORT_LUNFLAGS_NO_ACCESS, nacl, tpg);
- spin_lock_irq(&nacl->device_list_lock);
+ mutex_lock(&nacl->lun_entry_mutex);
+ hlist_for_each_entry_rcu(deve, &nacl->lun_entry_hlist, link) {
+ struct se_lun *lun = rcu_dereference_check(deve->se_lun,
+ lockdep_is_held(&nacl->lun_entry_mutex));
+ core_disable_device_list_for_node(lun, deve, nacl, tpg);
}
- spin_unlock_irq(&nacl->device_list_lock);
-
- array_free(nacl->device_list, TRANSPORT_MAX_LUNS_PER_TPG);
- nacl->device_list = NULL;
-
- return 0;
+ mutex_unlock(&nacl->lun_entry_mutex);
}
void core_update_device_list_access(
- u32 mapped_lun,
+ u64 mapped_lun,
u32 lun_access,
struct se_node_acl *nacl)
{
struct se_dev_entry *deve;
- spin_lock_irq(&nacl->device_list_lock);
- deve = nacl->device_list[mapped_lun];
- if (lun_access & TRANSPORT_LUNFLAGS_READ_WRITE) {
- deve->lun_flags &= ~TRANSPORT_LUNFLAGS_READ_ONLY;
- deve->lun_flags |= TRANSPORT_LUNFLAGS_READ_WRITE;
- } else {
- deve->lun_flags &= ~TRANSPORT_LUNFLAGS_READ_WRITE;
- deve->lun_flags |= TRANSPORT_LUNFLAGS_READ_ONLY;
- }
- spin_unlock_irq(&nacl->device_list_lock);
-}
-
-/* core_enable_device_list_for_node():
- *
- *
- */
-int core_enable_device_list_for_node(
- struct se_lun *lun,
- struct se_lun_acl *lun_acl,
- u32 mapped_lun,
- u32 lun_access,
- struct se_node_acl *nacl,
- struct se_portal_group *tpg)
-{
- struct se_port *port = lun->lun_sep;
- struct se_dev_entry *deve;
-
- spin_lock_irq(&nacl->device_list_lock);
-
- deve = nacl->device_list[mapped_lun];
-
- /*
- * Check if the call is handling demo mode -> explicit LUN ACL
- * transition. This transition must be for the same struct se_lun
- * + mapped_lun that was setup in demo mode..
- */
- if (deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS) {
- if (deve->se_lun_acl != NULL) {
- pr_err("struct se_dev_entry->se_lun_acl"
- " already set for demo mode -> explicit"
- " LUN ACL transition\n");
- spin_unlock_irq(&nacl->device_list_lock);
- return -EINVAL;
- }
- if (deve->se_lun != lun) {
- pr_err("struct se_dev_entry->se_lun does"
- " match passed struct se_lun for demo mode"
- " -> explicit LUN ACL transition\n");
- spin_unlock_irq(&nacl->device_list_lock);
- return -EINVAL;
- }
- deve->se_lun_acl = lun_acl;
-
+ mutex_lock(&nacl->lun_entry_mutex);
+ deve = target_nacl_find_deve(nacl, mapped_lun);
+ if (deve) {
if (lun_access & TRANSPORT_LUNFLAGS_READ_WRITE) {
deve->lun_flags &= ~TRANSPORT_LUNFLAGS_READ_ONLY;
deve->lun_flags |= TRANSPORT_LUNFLAGS_READ_WRITE;
@@ -341,87 +267,182 @@
deve->lun_flags &= ~TRANSPORT_LUNFLAGS_READ_WRITE;
deve->lun_flags |= TRANSPORT_LUNFLAGS_READ_ONLY;
}
-
- spin_unlock_irq(&nacl->device_list_lock);
- return 0;
}
-
- deve->se_lun = lun;
- deve->se_lun_acl = lun_acl;
- deve->mapped_lun = mapped_lun;
- deve->lun_flags |= TRANSPORT_LUNFLAGS_INITIATOR_ACCESS;
-
- if (lun_access & TRANSPORT_LUNFLAGS_READ_WRITE) {
- deve->lun_flags &= ~TRANSPORT_LUNFLAGS_READ_ONLY;
- deve->lun_flags |= TRANSPORT_LUNFLAGS_READ_WRITE;
- } else {
- deve->lun_flags &= ~TRANSPORT_LUNFLAGS_READ_WRITE;
- deve->lun_flags |= TRANSPORT_LUNFLAGS_READ_ONLY;
- }
-
- deve->creation_time = get_jiffies_64();
- deve->attach_count++;
- spin_unlock_irq(&nacl->device_list_lock);
-
- spin_lock_bh(&port->sep_alua_lock);
- list_add_tail(&deve->alua_port_list, &port->sep_alua_list);
- spin_unlock_bh(&port->sep_alua_lock);
-
- return 0;
+ mutex_unlock(&nacl->lun_entry_mutex);
}
-/* core_disable_device_list_for_node():
- *
- *
+/*
+ * Called with rcu_read_lock or nacl->device_list_lock held.
*/
-int core_disable_device_list_for_node(
+struct se_dev_entry *target_nacl_find_deve(struct se_node_acl *nacl, u64 mapped_lun)
+{
+ struct se_dev_entry *deve;
+
+ hlist_for_each_entry_rcu(deve, &nacl->lun_entry_hlist, link)
+ if (deve->mapped_lun == mapped_lun)
+ return deve;
+
+ return NULL;
+}
+EXPORT_SYMBOL(target_nacl_find_deve);
+
+void target_pr_kref_release(struct kref *kref)
+{
+ struct se_dev_entry *deve = container_of(kref, struct se_dev_entry,
+ pr_kref);
+ complete(&deve->pr_comp);
+}
+
+static void
+target_luns_data_has_changed(struct se_node_acl *nacl, struct se_dev_entry *new,
+ bool skip_new)
+{
+ struct se_dev_entry *tmp;
+
+ rcu_read_lock();
+ hlist_for_each_entry_rcu(tmp, &nacl->lun_entry_hlist, link) {
+ if (skip_new && tmp == new)
+ continue;
+ core_scsi3_ua_allocate(tmp, 0x3F,
+ ASCQ_3FH_REPORTED_LUNS_DATA_HAS_CHANGED);
+ }
+ rcu_read_unlock();
+}
+
+int core_enable_device_list_for_node(
struct se_lun *lun,
struct se_lun_acl *lun_acl,
- u32 mapped_lun,
+ u64 mapped_lun,
u32 lun_access,
struct se_node_acl *nacl,
struct se_portal_group *tpg)
{
- struct se_port *port = lun->lun_sep;
- struct se_dev_entry *deve = nacl->device_list[mapped_lun];
+ struct se_dev_entry *orig, *new;
+ new = kzalloc(sizeof(*new), GFP_KERNEL);
+ if (!new) {
+ pr_err("Unable to allocate se_dev_entry memory\n");
+ return -ENOMEM;
+ }
+
+ atomic_set(&new->ua_count, 0);
+ spin_lock_init(&new->ua_lock);
+ INIT_LIST_HEAD(&new->ua_list);
+ INIT_LIST_HEAD(&new->lun_link);
+
+ new->mapped_lun = mapped_lun;
+ kref_init(&new->pr_kref);
+ init_completion(&new->pr_comp);
+
+ if (lun_access & TRANSPORT_LUNFLAGS_READ_WRITE)
+ new->lun_flags |= TRANSPORT_LUNFLAGS_READ_WRITE;
+ else
+ new->lun_flags |= TRANSPORT_LUNFLAGS_READ_ONLY;
+
+ new->creation_time = get_jiffies_64();
+ new->attach_count++;
+
+ mutex_lock(&nacl->lun_entry_mutex);
+ orig = target_nacl_find_deve(nacl, mapped_lun);
+ if (orig && orig->se_lun) {
+ struct se_lun *orig_lun = rcu_dereference_check(orig->se_lun,
+ lockdep_is_held(&nacl->lun_entry_mutex));
+
+ if (orig_lun != lun) {
+ pr_err("Existing orig->se_lun doesn't match new lun"
+ " for dynamic -> explicit NodeACL conversion:"
+ " %s\n", nacl->initiatorname);
+ mutex_unlock(&nacl->lun_entry_mutex);
+ kfree(new);
+ return -EINVAL;
+ }
+ BUG_ON(orig->se_lun_acl != NULL);
+
+ rcu_assign_pointer(new->se_lun, lun);
+ rcu_assign_pointer(new->se_lun_acl, lun_acl);
+ hlist_del_rcu(&orig->link);
+ hlist_add_head_rcu(&new->link, &nacl->lun_entry_hlist);
+ mutex_unlock(&nacl->lun_entry_mutex);
+
+ spin_lock(&lun->lun_deve_lock);
+ list_del(&orig->lun_link);
+ list_add_tail(&new->lun_link, &lun->lun_deve_list);
+ spin_unlock(&lun->lun_deve_lock);
+
+ kref_put(&orig->pr_kref, target_pr_kref_release);
+ wait_for_completion(&orig->pr_comp);
+
+ target_luns_data_has_changed(nacl, new, true);
+ kfree_rcu(orig, rcu_head);
+ return 0;
+ }
+
+ rcu_assign_pointer(new->se_lun, lun);
+ rcu_assign_pointer(new->se_lun_acl, lun_acl);
+ hlist_add_head_rcu(&new->link, &nacl->lun_entry_hlist);
+ mutex_unlock(&nacl->lun_entry_mutex);
+
+ spin_lock(&lun->lun_deve_lock);
+ list_add_tail(&new->lun_link, &lun->lun_deve_list);
+ spin_unlock(&lun->lun_deve_lock);
+
+ target_luns_data_has_changed(nacl, new, true);
+ return 0;
+}
+
+/*
+ * Called with se_node_acl->lun_entry_mutex held.
+ */
+void core_disable_device_list_for_node(
+ struct se_lun *lun,
+ struct se_dev_entry *orig,
+ struct se_node_acl *nacl,
+ struct se_portal_group *tpg)
+{
+ /*
+ * rcu_dereference_raw protected by se_lun->lun_group symlink
+ * reference to se_device->dev_group.
+ */
+ struct se_device *dev = rcu_dereference_raw(lun->lun_se_dev);
/*
* If the MappedLUN entry is being disabled, the entry in
- * port->sep_alua_list must be removed now before clearing the
+ * lun->lun_deve_list must be removed now before clearing the
* struct se_dev_entry pointers below as logic in
* core_alua_do_transition_tg_pt() depends on these being present.
*
* deve->se_lun_acl will be NULL for demo-mode created LUNs
* that have not been explicitly converted to MappedLUNs ->
- * struct se_lun_acl, but we remove deve->alua_port_list from
- * port->sep_alua_list. This also means that active UAs and
+ * struct se_lun_acl, but we remove deve->lun_link from
+ * lun->lun_deve_list. This also means that active UAs and
* NodeACL context specific PR metadata for demo-mode
* MappedLUN *deve will be released below..
*/
- spin_lock_bh(&port->sep_alua_lock);
- list_del(&deve->alua_port_list);
- spin_unlock_bh(&port->sep_alua_lock);
- /*
- * Wait for any in process SPEC_I_PT=1 or REGISTER_AND_MOVE
- * PR operation to complete.
- */
- while (atomic_read(&deve->pr_ref_count) != 0)
- cpu_relax();
-
- spin_lock_irq(&nacl->device_list_lock);
+ spin_lock(&lun->lun_deve_lock);
+ list_del(&orig->lun_link);
+ spin_unlock(&lun->lun_deve_lock);
/*
* Disable struct se_dev_entry LUN ACL mapping
*/
- core_scsi3_ua_release_all(deve);
- deve->se_lun = NULL;
- deve->se_lun_acl = NULL;
- deve->lun_flags = 0;
- deve->creation_time = 0;
- deve->attach_count--;
- spin_unlock_irq(&nacl->device_list_lock);
+ core_scsi3_ua_release_all(orig);
- core_scsi3_free_pr_reg_from_nacl(lun->lun_se_dev, nacl);
- return 0;
+ hlist_del_rcu(&orig->link);
+ clear_bit(DEF_PR_REG_ACTIVE, &orig->deve_flags);
+ rcu_assign_pointer(orig->se_lun, NULL);
+ rcu_assign_pointer(orig->se_lun_acl, NULL);
+ orig->lun_flags = 0;
+ orig->creation_time = 0;
+ orig->attach_count--;
+ /*
+ * Before firing off RCU callback, wait for any in process SPEC_I_PT=1
+ * or REGISTER_AND_MOVE PR operation to complete.
+ */
+ kref_put(&orig->pr_kref, target_pr_kref_release);
+ wait_for_completion(&orig->pr_comp);
+
+ kfree_rcu(orig, rcu_head);
+
+ core_scsi3_free_pr_reg_from_nacl(dev, nacl);
+ target_luns_data_has_changed(nacl, NULL, false);
}
/* core_clear_lun_from_tpg():
@@ -432,53 +453,35 @@
{
struct se_node_acl *nacl;
struct se_dev_entry *deve;
- u32 i;
- spin_lock_irq(&tpg->acl_node_lock);
+ mutex_lock(&tpg->acl_node_mutex);
list_for_each_entry(nacl, &tpg->acl_node_list, acl_list) {
- spin_unlock_irq(&tpg->acl_node_lock);
- spin_lock_irq(&nacl->device_list_lock);
- for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) {
- deve = nacl->device_list[i];
- if (lun != deve->se_lun)
+ mutex_lock(&nacl->lun_entry_mutex);
+ hlist_for_each_entry_rcu(deve, &nacl->lun_entry_hlist, link) {
+ struct se_lun *tmp_lun = rcu_dereference_check(deve->se_lun,
+ lockdep_is_held(&nacl->lun_entry_mutex));
+
+ if (lun != tmp_lun)
continue;
- spin_unlock_irq(&nacl->device_list_lock);
- core_disable_device_list_for_node(lun, NULL,
- deve->mapped_lun, TRANSPORT_LUNFLAGS_NO_ACCESS,
- nacl, tpg);
-
- spin_lock_irq(&nacl->device_list_lock);
+ core_disable_device_list_for_node(lun, deve, nacl, tpg);
}
- spin_unlock_irq(&nacl->device_list_lock);
-
- spin_lock_irq(&tpg->acl_node_lock);
+ mutex_unlock(&nacl->lun_entry_mutex);
}
- spin_unlock_irq(&tpg->acl_node_lock);
+ mutex_unlock(&tpg->acl_node_mutex);
}
-static struct se_port *core_alloc_port(struct se_device *dev)
+int core_alloc_rtpi(struct se_lun *lun, struct se_device *dev)
{
- struct se_port *port, *port_tmp;
-
- port = kzalloc(sizeof(struct se_port), GFP_KERNEL);
- if (!port) {
- pr_err("Unable to allocate struct se_port\n");
- return ERR_PTR(-ENOMEM);
- }
- INIT_LIST_HEAD(&port->sep_alua_list);
- INIT_LIST_HEAD(&port->sep_list);
- atomic_set(&port->sep_tg_pt_secondary_offline, 0);
- spin_lock_init(&port->sep_alua_lock);
- mutex_init(&port->sep_tg_pt_md_mutex);
+ struct se_lun *tmp;
spin_lock(&dev->se_port_lock);
- if (dev->dev_port_count == 0x0000ffff) {
+ if (dev->export_count == 0x0000ffff) {
pr_warn("Reached dev->dev_port_count =="
" 0x0000ffff\n");
spin_unlock(&dev->se_port_lock);
- return ERR_PTR(-ENOSPC);
+ return -ENOSPC;
}
again:
/*
@@ -493,133 +496,23 @@
* 2h Relative port 2, historically known as port B
* 3h to FFFFh Relative port 3 through 65 535
*/
- port->sep_rtpi = dev->dev_rpti_counter++;
- if (!port->sep_rtpi)
+ lun->lun_rtpi = dev->dev_rpti_counter++;
+ if (!lun->lun_rtpi)
goto again;
- list_for_each_entry(port_tmp, &dev->dev_sep_list, sep_list) {
+ list_for_each_entry(tmp, &dev->dev_sep_list, lun_dev_link) {
/*
* Make sure RELATIVE TARGET PORT IDENTIFIER is unique
* for 16-bit wrap..
*/
- if (port->sep_rtpi == port_tmp->sep_rtpi)
+ if (lun->lun_rtpi == tmp->lun_rtpi)
goto again;
}
spin_unlock(&dev->se_port_lock);
- return port;
-}
-
-static void core_export_port(
- struct se_device *dev,
- struct se_portal_group *tpg,
- struct se_port *port,
- struct se_lun *lun)
-{
- struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem = NULL;
-
- spin_lock(&dev->se_port_lock);
- spin_lock(&lun->lun_sep_lock);
- port->sep_tpg = tpg;
- port->sep_lun = lun;
- lun->lun_sep = port;
- spin_unlock(&lun->lun_sep_lock);
-
- list_add_tail(&port->sep_list, &dev->dev_sep_list);
- spin_unlock(&dev->se_port_lock);
-
- if (!(dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH) &&
- !(dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE)) {
- tg_pt_gp_mem = core_alua_allocate_tg_pt_gp_mem(port);
- if (IS_ERR(tg_pt_gp_mem) || !tg_pt_gp_mem) {
- pr_err("Unable to allocate t10_alua_tg_pt"
- "_gp_member_t\n");
- return;
- }
- spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
- __core_alua_attach_tg_pt_gp_mem(tg_pt_gp_mem,
- dev->t10_alua.default_tg_pt_gp);
- spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
- pr_debug("%s/%s: Adding to default ALUA Target Port"
- " Group: alua/default_tg_pt_gp\n",
- dev->transport->name, tpg->se_tpg_tfo->get_fabric_name());
- }
-
- dev->dev_port_count++;
- port->sep_index = port->sep_rtpi; /* RELATIVE TARGET PORT IDENTIFIER */
-}
-
-/*
- * Called with struct se_device->se_port_lock spinlock held.
- */
-static void core_release_port(struct se_device *dev, struct se_port *port)
- __releases(&dev->se_port_lock) __acquires(&dev->se_port_lock)
-{
- /*
- * Wait for any port reference for PR ALL_TG_PT=1 operation
- * to complete in __core_scsi3_alloc_registration()
- */
- spin_unlock(&dev->se_port_lock);
- if (atomic_read(&port->sep_tg_pt_ref_cnt))
- cpu_relax();
- spin_lock(&dev->se_port_lock);
-
- core_alua_free_tg_pt_gp_mem(port);
-
- list_del(&port->sep_list);
- dev->dev_port_count--;
- kfree(port);
-}
-
-int core_dev_export(
- struct se_device *dev,
- struct se_portal_group *tpg,
- struct se_lun *lun)
-{
- struct se_hba *hba = dev->se_hba;
- struct se_port *port;
-
- port = core_alloc_port(dev);
- if (IS_ERR(port))
- return PTR_ERR(port);
-
- lun->lun_se_dev = dev;
-
- spin_lock(&hba->device_lock);
- dev->export_count++;
- spin_unlock(&hba->device_lock);
-
- core_export_port(dev, tpg, port, lun);
return 0;
}
-void core_dev_unexport(
- struct se_device *dev,
- struct se_portal_group *tpg,
- struct se_lun *lun)
-{
- struct se_hba *hba = dev->se_hba;
- struct se_port *port = lun->lun_sep;
-
- spin_lock(&lun->lun_sep_lock);
- if (lun->lun_se_dev == NULL) {
- spin_unlock(&lun->lun_sep_lock);
- return;
- }
- spin_unlock(&lun->lun_sep_lock);
-
- spin_lock(&dev->se_port_lock);
- core_release_port(dev, port);
- spin_unlock(&dev->se_port_lock);
-
- spin_lock(&hba->device_lock);
- dev->export_count--;
- spin_unlock(&hba->device_lock);
-
- lun->lun_sep = NULL;
- lun->lun_se_dev = NULL;
-}
-
static void se_release_vpd_for_dev(struct se_device *dev)
{
struct t10_vpd *vpd, *vpd_tmp;
@@ -651,556 +544,19 @@
return aligned_max_sectors;
}
-bool se_dev_check_wce(struct se_device *dev)
-{
- bool wce = false;
-
- if (dev->transport->get_write_cache)
- wce = dev->transport->get_write_cache(dev);
- else if (dev->dev_attrib.emulate_write_cache > 0)
- wce = true;
-
- return wce;
-}
-
-int se_dev_set_max_unmap_lba_count(
- struct se_device *dev,
- u32 max_unmap_lba_count)
-{
- dev->dev_attrib.max_unmap_lba_count = max_unmap_lba_count;
- pr_debug("dev[%p]: Set max_unmap_lba_count: %u\n",
- dev, dev->dev_attrib.max_unmap_lba_count);
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_max_unmap_lba_count);
-
-int se_dev_set_max_unmap_block_desc_count(
- struct se_device *dev,
- u32 max_unmap_block_desc_count)
-{
- dev->dev_attrib.max_unmap_block_desc_count =
- max_unmap_block_desc_count;
- pr_debug("dev[%p]: Set max_unmap_block_desc_count: %u\n",
- dev, dev->dev_attrib.max_unmap_block_desc_count);
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_max_unmap_block_desc_count);
-
-int se_dev_set_unmap_granularity(
- struct se_device *dev,
- u32 unmap_granularity)
-{
- dev->dev_attrib.unmap_granularity = unmap_granularity;
- pr_debug("dev[%p]: Set unmap_granularity: %u\n",
- dev, dev->dev_attrib.unmap_granularity);
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_unmap_granularity);
-
-int se_dev_set_unmap_granularity_alignment(
- struct se_device *dev,
- u32 unmap_granularity_alignment)
-{
- dev->dev_attrib.unmap_granularity_alignment = unmap_granularity_alignment;
- pr_debug("dev[%p]: Set unmap_granularity_alignment: %u\n",
- dev, dev->dev_attrib.unmap_granularity_alignment);
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_unmap_granularity_alignment);
-
-int se_dev_set_max_write_same_len(
- struct se_device *dev,
- u32 max_write_same_len)
-{
- dev->dev_attrib.max_write_same_len = max_write_same_len;
- pr_debug("dev[%p]: Set max_write_same_len: %u\n",
- dev, dev->dev_attrib.max_write_same_len);
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_max_write_same_len);
-
-static void dev_set_t10_wwn_model_alias(struct se_device *dev)
-{
- const char *configname;
-
- configname = config_item_name(&dev->dev_group.cg_item);
- if (strlen(configname) >= 16) {
- pr_warn("dev[%p]: Backstore name '%s' is too long for "
- "INQUIRY_MODEL, truncating to 16 bytes\n", dev,
- configname);
- }
- snprintf(&dev->t10_wwn.model[0], 16, "%s", configname);
-}
-
-int se_dev_set_emulate_model_alias(struct se_device *dev, int flag)
-{
- if (dev->export_count) {
- pr_err("dev[%p]: Unable to change model alias"
- " while export_count is %d\n",
- dev, dev->export_count);
- return -EINVAL;
- }
-
- if (flag != 0 && flag != 1) {
- pr_err("Illegal value %d\n", flag);
- return -EINVAL;
- }
-
- if (flag) {
- dev_set_t10_wwn_model_alias(dev);
- } else {
- strncpy(&dev->t10_wwn.model[0],
- dev->transport->inquiry_prod, 16);
- }
- dev->dev_attrib.emulate_model_alias = flag;
-
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_emulate_model_alias);
-
-int se_dev_set_emulate_dpo(struct se_device *dev, int flag)
-{
- if (flag != 0 && flag != 1) {
- pr_err("Illegal value %d\n", flag);
- return -EINVAL;
- }
-
- if (flag) {
- pr_err("dpo_emulated not supported\n");
- return -EINVAL;
- }
-
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_emulate_dpo);
-
-int se_dev_set_emulate_fua_write(struct se_device *dev, int flag)
-{
- if (flag != 0 && flag != 1) {
- pr_err("Illegal value %d\n", flag);
- return -EINVAL;
- }
- if (flag &&
- dev->transport->get_write_cache) {
- pr_warn("emulate_fua_write not supported for this device, ignoring\n");
- return 0;
- }
- if (dev->export_count) {
- pr_err("emulate_fua_write cannot be changed with active"
- " exports: %d\n", dev->export_count);
- return -EINVAL;
- }
- dev->dev_attrib.emulate_fua_write = flag;
- pr_debug("dev[%p]: SE Device Forced Unit Access WRITEs: %d\n",
- dev, dev->dev_attrib.emulate_fua_write);
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_emulate_fua_write);
-
-int se_dev_set_emulate_fua_read(struct se_device *dev, int flag)
-{
- if (flag != 0 && flag != 1) {
- pr_err("Illegal value %d\n", flag);
- return -EINVAL;
- }
-
- if (flag) {
- pr_err("ua read emulated not supported\n");
- return -EINVAL;
- }
-
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_emulate_fua_read);
-
-int se_dev_set_emulate_write_cache(struct se_device *dev, int flag)
-{
- if (flag != 0 && flag != 1) {
- pr_err("Illegal value %d\n", flag);
- return -EINVAL;
- }
- if (flag &&
- dev->transport->get_write_cache) {
- pr_err("emulate_write_cache not supported for this device\n");
- return -EINVAL;
- }
- if (dev->export_count) {
- pr_err("emulate_write_cache cannot be changed with active"
- " exports: %d\n", dev->export_count);
- return -EINVAL;
- }
- dev->dev_attrib.emulate_write_cache = flag;
- pr_debug("dev[%p]: SE Device WRITE_CACHE_EMULATION flag: %d\n",
- dev, dev->dev_attrib.emulate_write_cache);
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_emulate_write_cache);
-
-int se_dev_set_emulate_ua_intlck_ctrl(struct se_device *dev, int flag)
-{
- if ((flag != 0) && (flag != 1) && (flag != 2)) {
- pr_err("Illegal value %d\n", flag);
- return -EINVAL;
- }
-
- if (dev->export_count) {
- pr_err("dev[%p]: Unable to change SE Device"
- " UA_INTRLCK_CTRL while export_count is %d\n",
- dev, dev->export_count);
- return -EINVAL;
- }
- dev->dev_attrib.emulate_ua_intlck_ctrl = flag;
- pr_debug("dev[%p]: SE Device UA_INTRLCK_CTRL flag: %d\n",
- dev, dev->dev_attrib.emulate_ua_intlck_ctrl);
-
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_emulate_ua_intlck_ctrl);
-
-int se_dev_set_emulate_tas(struct se_device *dev, int flag)
-{
- if ((flag != 0) && (flag != 1)) {
- pr_err("Illegal value %d\n", flag);
- return -EINVAL;
- }
-
- if (dev->export_count) {
- pr_err("dev[%p]: Unable to change SE Device TAS while"
- " export_count is %d\n",
- dev, dev->export_count);
- return -EINVAL;
- }
- dev->dev_attrib.emulate_tas = flag;
- pr_debug("dev[%p]: SE Device TASK_ABORTED status bit: %s\n",
- dev, (dev->dev_attrib.emulate_tas) ? "Enabled" : "Disabled");
-
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_emulate_tas);
-
-int se_dev_set_emulate_tpu(struct se_device *dev, int flag)
-{
- if ((flag != 0) && (flag != 1)) {
- pr_err("Illegal value %d\n", flag);
- return -EINVAL;
- }
- /*
- * We expect this value to be non-zero when generic Block Layer
- * Discard supported is detected iblock_create_virtdevice().
- */
- if (flag && !dev->dev_attrib.max_unmap_block_desc_count) {
- pr_err("Generic Block Discard not supported\n");
- return -ENOSYS;
- }
-
- dev->dev_attrib.emulate_tpu = flag;
- pr_debug("dev[%p]: SE Device Thin Provisioning UNMAP bit: %d\n",
- dev, flag);
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_emulate_tpu);
-
-int se_dev_set_emulate_tpws(struct se_device *dev, int flag)
-{
- if ((flag != 0) && (flag != 1)) {
- pr_err("Illegal value %d\n", flag);
- return -EINVAL;
- }
- /*
- * We expect this value to be non-zero when generic Block Layer
- * Discard supported is detected iblock_create_virtdevice().
- */
- if (flag && !dev->dev_attrib.max_unmap_block_desc_count) {
- pr_err("Generic Block Discard not supported\n");
- return -ENOSYS;
- }
-
- dev->dev_attrib.emulate_tpws = flag;
- pr_debug("dev[%p]: SE Device Thin Provisioning WRITE_SAME: %d\n",
- dev, flag);
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_emulate_tpws);
-
-int se_dev_set_emulate_caw(struct se_device *dev, int flag)
-{
- if (flag != 0 && flag != 1) {
- pr_err("Illegal value %d\n", flag);
- return -EINVAL;
- }
- dev->dev_attrib.emulate_caw = flag;
- pr_debug("dev[%p]: SE Device CompareAndWrite (AtomicTestandSet): %d\n",
- dev, flag);
-
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_emulate_caw);
-
-int se_dev_set_emulate_3pc(struct se_device *dev, int flag)
-{
- if (flag != 0 && flag != 1) {
- pr_err("Illegal value %d\n", flag);
- return -EINVAL;
- }
- dev->dev_attrib.emulate_3pc = flag;
- pr_debug("dev[%p]: SE Device 3rd Party Copy (EXTENDED_COPY): %d\n",
- dev, flag);
-
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_emulate_3pc);
-
-int se_dev_set_pi_prot_type(struct se_device *dev, int flag)
-{
- int rc, old_prot = dev->dev_attrib.pi_prot_type;
-
- if (flag != 0 && flag != 1 && flag != 2 && flag != 3) {
- pr_err("Illegal value %d for pi_prot_type\n", flag);
- return -EINVAL;
- }
- if (flag == 2) {
- pr_err("DIF TYPE2 protection currently not supported\n");
- return -ENOSYS;
- }
- if (dev->dev_attrib.hw_pi_prot_type) {
- pr_warn("DIF protection enabled on underlying hardware,"
- " ignoring\n");
- return 0;
- }
- if (!dev->transport->init_prot || !dev->transport->free_prot) {
- /* 0 is only allowed value for non-supporting backends */
- if (flag == 0)
- return 0;
-
- pr_err("DIF protection not supported by backend: %s\n",
- dev->transport->name);
- return -ENOSYS;
- }
- if (!(dev->dev_flags & DF_CONFIGURED)) {
- pr_err("DIF protection requires device to be configured\n");
- return -ENODEV;
- }
- if (dev->export_count) {
- pr_err("dev[%p]: Unable to change SE Device PROT type while"
- " export_count is %d\n", dev, dev->export_count);
- return -EINVAL;
- }
-
- dev->dev_attrib.pi_prot_type = flag;
-
- if (flag && !old_prot) {
- rc = dev->transport->init_prot(dev);
- if (rc) {
- dev->dev_attrib.pi_prot_type = old_prot;
- return rc;
- }
-
- } else if (!flag && old_prot) {
- dev->transport->free_prot(dev);
- }
- pr_debug("dev[%p]: SE Device Protection Type: %d\n", dev, flag);
-
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_pi_prot_type);
-
-int se_dev_set_pi_prot_format(struct se_device *dev, int flag)
-{
- int rc;
-
- if (!flag)
- return 0;
-
- if (flag != 1) {
- pr_err("Illegal value %d for pi_prot_format\n", flag);
- return -EINVAL;
- }
- if (!dev->transport->format_prot) {
- pr_err("DIF protection format not supported by backend %s\n",
- dev->transport->name);
- return -ENOSYS;
- }
- if (!(dev->dev_flags & DF_CONFIGURED)) {
- pr_err("DIF protection format requires device to be configured\n");
- return -ENODEV;
- }
- if (dev->export_count) {
- pr_err("dev[%p]: Unable to format SE Device PROT type while"
- " export_count is %d\n", dev, dev->export_count);
- return -EINVAL;
- }
-
- rc = dev->transport->format_prot(dev);
- if (rc)
- return rc;
-
- pr_debug("dev[%p]: SE Device Protection Format complete\n", dev);
-
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_pi_prot_format);
-
-int se_dev_set_enforce_pr_isids(struct se_device *dev, int flag)
-{
- if ((flag != 0) && (flag != 1)) {
- pr_err("Illegal value %d\n", flag);
- return -EINVAL;
- }
- dev->dev_attrib.enforce_pr_isids = flag;
- pr_debug("dev[%p]: SE Device enforce_pr_isids bit: %s\n", dev,
- (dev->dev_attrib.enforce_pr_isids) ? "Enabled" : "Disabled");
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_enforce_pr_isids);
-
-int se_dev_set_force_pr_aptpl(struct se_device *dev, int flag)
-{
- if ((flag != 0) && (flag != 1)) {
- printk(KERN_ERR "Illegal value %d\n", flag);
- return -EINVAL;
- }
- if (dev->export_count) {
- pr_err("dev[%p]: Unable to set force_pr_aptpl while"
- " export_count is %d\n", dev, dev->export_count);
- return -EINVAL;
- }
-
- dev->dev_attrib.force_pr_aptpl = flag;
- pr_debug("dev[%p]: SE Device force_pr_aptpl: %d\n", dev, flag);
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_force_pr_aptpl);
-
-int se_dev_set_is_nonrot(struct se_device *dev, int flag)
-{
- if ((flag != 0) && (flag != 1)) {
- printk(KERN_ERR "Illegal value %d\n", flag);
- return -EINVAL;
- }
- dev->dev_attrib.is_nonrot = flag;
- pr_debug("dev[%p]: SE Device is_nonrot bit: %d\n",
- dev, flag);
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_is_nonrot);
-
-int se_dev_set_emulate_rest_reord(struct se_device *dev, int flag)
-{
- if (flag != 0) {
- printk(KERN_ERR "dev[%p]: SE Device emulatation of restricted"
- " reordering not implemented\n", dev);
- return -ENOSYS;
- }
- dev->dev_attrib.emulate_rest_reord = flag;
- pr_debug("dev[%p]: SE Device emulate_rest_reord: %d\n", dev, flag);
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_emulate_rest_reord);
-
-/*
- * Note, this can only be called on unexported SE Device Object.
- */
-int se_dev_set_queue_depth(struct se_device *dev, u32 queue_depth)
-{
- if (dev->export_count) {
- pr_err("dev[%p]: Unable to change SE Device TCQ while"
- " export_count is %d\n",
- dev, dev->export_count);
- return -EINVAL;
- }
- if (!queue_depth) {
- pr_err("dev[%p]: Illegal ZERO value for queue"
- "_depth\n", dev);
- return -EINVAL;
- }
-
- if (queue_depth > dev->dev_attrib.queue_depth) {
- if (queue_depth > dev->dev_attrib.hw_queue_depth) {
- pr_err("dev[%p]: Passed queue_depth:"
- " %u exceeds TCM/SE_Device MAX"
- " TCQ: %u\n", dev, queue_depth,
- dev->dev_attrib.hw_queue_depth);
- return -EINVAL;
- }
- }
- dev->dev_attrib.queue_depth = dev->queue_depth = queue_depth;
- pr_debug("dev[%p]: SE Device TCQ Depth changed to: %u\n",
- dev, queue_depth);
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_queue_depth);
-
-int se_dev_set_optimal_sectors(struct se_device *dev, u32 optimal_sectors)
-{
- if (dev->export_count) {
- pr_err("dev[%p]: Unable to change SE Device"
- " optimal_sectors while export_count is %d\n",
- dev, dev->export_count);
- return -EINVAL;
- }
- if (optimal_sectors > dev->dev_attrib.hw_max_sectors) {
- pr_err("dev[%p]: Passed optimal_sectors %u cannot be"
- " greater than hw_max_sectors: %u\n", dev,
- optimal_sectors, dev->dev_attrib.hw_max_sectors);
- return -EINVAL;
- }
-
- dev->dev_attrib.optimal_sectors = optimal_sectors;
- pr_debug("dev[%p]: SE Device optimal_sectors changed to %u\n",
- dev, optimal_sectors);
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_optimal_sectors);
-
-int se_dev_set_block_size(struct se_device *dev, u32 block_size)
-{
- if (dev->export_count) {
- pr_err("dev[%p]: Unable to change SE Device block_size"
- " while export_count is %d\n",
- dev, dev->export_count);
- return -EINVAL;
- }
-
- if ((block_size != 512) &&
- (block_size != 1024) &&
- (block_size != 2048) &&
- (block_size != 4096)) {
- pr_err("dev[%p]: Illegal value for block_device: %u"
- " for SE device, must be 512, 1024, 2048 or 4096\n",
- dev, block_size);
- return -EINVAL;
- }
-
- dev->dev_attrib.block_size = block_size;
- pr_debug("dev[%p]: SE Device block_size changed to %u\n",
- dev, block_size);
-
- if (dev->dev_attrib.max_bytes_per_io)
- dev->dev_attrib.hw_max_sectors =
- dev->dev_attrib.max_bytes_per_io / block_size;
-
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_block_size);
-
-struct se_lun *core_dev_add_lun(
+int core_dev_add_lun(
struct se_portal_group *tpg,
struct se_device *dev,
- u32 unpacked_lun)
+ struct se_lun *lun)
{
- struct se_lun *lun;
int rc;
- lun = core_tpg_alloc_lun(tpg, unpacked_lun);
- if (IS_ERR(lun))
- return lun;
-
rc = core_tpg_add_lun(tpg, lun,
TRANSPORT_LUNFLAGS_READ_WRITE, dev);
if (rc < 0)
- return ERR_PTR(rc);
+ return rc;
- pr_debug("%s_TPG[%u]_LUN[%u] - Activated %s Logical Unit from"
+ pr_debug("%s_TPG[%u]_LUN[%llu] - Activated %s Logical Unit from"
" CORE HBA: %u\n", tpg->se_tpg_tfo->get_fabric_name(),
tpg->se_tpg_tfo->tpg_get_tag(tpg), lun->unpacked_lun,
tpg->se_tpg_tfo->get_fabric_name(), dev->se_hba->hba_id);
@@ -1210,20 +566,19 @@
*/
if (tpg->se_tpg_tfo->tpg_check_demo_mode(tpg)) {
struct se_node_acl *acl;
- spin_lock_irq(&tpg->acl_node_lock);
+
+ mutex_lock(&tpg->acl_node_mutex);
list_for_each_entry(acl, &tpg->acl_node_list, acl_list) {
if (acl->dynamic_node_acl &&
(!tpg->se_tpg_tfo->tpg_check_demo_mode_login_only ||
!tpg->se_tpg_tfo->tpg_check_demo_mode_login_only(tpg))) {
- spin_unlock_irq(&tpg->acl_node_lock);
- core_tpg_add_node_to_devs(acl, tpg);
- spin_lock_irq(&tpg->acl_node_lock);
+ core_tpg_add_node_to_devs(acl, tpg, lun);
}
}
- spin_unlock_irq(&tpg->acl_node_lock);
+ mutex_unlock(&tpg->acl_node_mutex);
}
- return lun;
+ return 0;
}
/* core_dev_del_lun():
@@ -1234,7 +589,7 @@
struct se_portal_group *tpg,
struct se_lun *lun)
{
- pr_debug("%s_TPG[%u]_LUN[%u] - Deactivating %s Logical Unit from"
+ pr_debug("%s_TPG[%u]_LUN[%llu] - Deactivating %s Logical Unit from"
" device object\n", tpg->se_tpg_tfo->get_fabric_name(),
tpg->se_tpg_tfo->tpg_get_tag(tpg), lun->unpacked_lun,
tpg->se_tpg_tfo->get_fabric_name());
@@ -1242,72 +597,10 @@
core_tpg_remove_lun(tpg, lun);
}
-struct se_lun *core_get_lun_from_tpg(struct se_portal_group *tpg, u32 unpacked_lun)
-{
- struct se_lun *lun;
-
- spin_lock(&tpg->tpg_lun_lock);
- if (unpacked_lun > (TRANSPORT_MAX_LUNS_PER_TPG-1)) {
- pr_err("%s LUN: %u exceeds TRANSPORT_MAX_LUNS"
- "_PER_TPG-1: %u for Target Portal Group: %hu\n",
- tpg->se_tpg_tfo->get_fabric_name(), unpacked_lun,
- TRANSPORT_MAX_LUNS_PER_TPG-1,
- tpg->se_tpg_tfo->tpg_get_tag(tpg));
- spin_unlock(&tpg->tpg_lun_lock);
- return NULL;
- }
- lun = tpg->tpg_lun_list[unpacked_lun];
-
- if (lun->lun_status != TRANSPORT_LUN_STATUS_FREE) {
- pr_err("%s Logical Unit Number: %u is not free on"
- " Target Portal Group: %hu, ignoring request.\n",
- tpg->se_tpg_tfo->get_fabric_name(), unpacked_lun,
- tpg->se_tpg_tfo->tpg_get_tag(tpg));
- spin_unlock(&tpg->tpg_lun_lock);
- return NULL;
- }
- spin_unlock(&tpg->tpg_lun_lock);
-
- return lun;
-}
-
-/* core_dev_get_lun():
- *
- *
- */
-static struct se_lun *core_dev_get_lun(struct se_portal_group *tpg, u32 unpacked_lun)
-{
- struct se_lun *lun;
-
- spin_lock(&tpg->tpg_lun_lock);
- if (unpacked_lun > (TRANSPORT_MAX_LUNS_PER_TPG-1)) {
- pr_err("%s LUN: %u exceeds TRANSPORT_MAX_LUNS_PER"
- "_TPG-1: %u for Target Portal Group: %hu\n",
- tpg->se_tpg_tfo->get_fabric_name(), unpacked_lun,
- TRANSPORT_MAX_LUNS_PER_TPG-1,
- tpg->se_tpg_tfo->tpg_get_tag(tpg));
- spin_unlock(&tpg->tpg_lun_lock);
- return NULL;
- }
- lun = tpg->tpg_lun_list[unpacked_lun];
-
- if (lun->lun_status != TRANSPORT_LUN_STATUS_ACTIVE) {
- pr_err("%s Logical Unit Number: %u is not active on"
- " Target Portal Group: %hu, ignoring request.\n",
- tpg->se_tpg_tfo->get_fabric_name(), unpacked_lun,
- tpg->se_tpg_tfo->tpg_get_tag(tpg));
- spin_unlock(&tpg->tpg_lun_lock);
- return NULL;
- }
- spin_unlock(&tpg->tpg_lun_lock);
-
- return lun;
-}
-
struct se_lun_acl *core_dev_init_initiator_node_lun_acl(
struct se_portal_group *tpg,
struct se_node_acl *nacl,
- u32 mapped_lun,
+ u64 mapped_lun,
int *ret)
{
struct se_lun_acl *lacl;
@@ -1325,7 +618,6 @@
return NULL;
}
- INIT_LIST_HEAD(&lacl->lacl_list);
lacl->mapped_lun = mapped_lun;
lacl->se_lun_nacl = nacl;
snprintf(lacl->initiatorname, TRANSPORT_IQN_LEN, "%s",
@@ -1337,22 +629,16 @@
int core_dev_add_initiator_node_lun_acl(
struct se_portal_group *tpg,
struct se_lun_acl *lacl,
- u32 unpacked_lun,
+ struct se_lun *lun,
u32 lun_access)
{
- struct se_lun *lun;
- struct se_node_acl *nacl;
+ struct se_node_acl *nacl = lacl->se_lun_nacl;
+ /*
+ * rcu_dereference_raw protected by se_lun->lun_group symlink
+ * reference to se_device->dev_group.
+ */
+ struct se_device *dev = rcu_dereference_raw(lun->lun_se_dev);
- lun = core_dev_get_lun(tpg, unpacked_lun);
- if (!lun) {
- pr_err("%s Logical Unit Number: %u is not active on"
- " Target Portal Group: %hu, ignoring request.\n",
- tpg->se_tpg_tfo->get_fabric_name(), unpacked_lun,
- tpg->se_tpg_tfo->tpg_get_tag(tpg));
- return -EINVAL;
- }
-
- nacl = lacl->se_lun_nacl;
if (!nacl)
return -EINVAL;
@@ -1366,52 +652,40 @@
lun_access, nacl, tpg) < 0)
return -EINVAL;
- spin_lock(&lun->lun_acl_lock);
- list_add_tail(&lacl->lacl_list, &lun->lun_acl_list);
- atomic_inc_mb(&lun->lun_acl_count);
- spin_unlock(&lun->lun_acl_lock);
-
- pr_debug("%s_TPG[%hu]_LUN[%u->%u] - Added %s ACL for "
+ pr_debug("%s_TPG[%hu]_LUN[%llu->%llu] - Added %s ACL for "
" InitiatorNode: %s\n", tpg->se_tpg_tfo->get_fabric_name(),
- tpg->se_tpg_tfo->tpg_get_tag(tpg), unpacked_lun, lacl->mapped_lun,
+ tpg->se_tpg_tfo->tpg_get_tag(tpg), lun->unpacked_lun, lacl->mapped_lun,
(lun_access & TRANSPORT_LUNFLAGS_READ_WRITE) ? "RW" : "RO",
lacl->initiatorname);
/*
* Check to see if there are any existing persistent reservation APTPL
* pre-registrations that need to be enabled for this LUN ACL..
*/
- core_scsi3_check_aptpl_registration(lun->lun_se_dev, tpg, lun, nacl,
+ core_scsi3_check_aptpl_registration(dev, tpg, lun, nacl,
lacl->mapped_lun);
return 0;
}
-/* core_dev_del_initiator_node_lun_acl():
- *
- *
- */
int core_dev_del_initiator_node_lun_acl(
- struct se_portal_group *tpg,
struct se_lun *lun,
struct se_lun_acl *lacl)
{
+ struct se_portal_group *tpg = lun->lun_tpg;
struct se_node_acl *nacl;
+ struct se_dev_entry *deve;
nacl = lacl->se_lun_nacl;
if (!nacl)
return -EINVAL;
- spin_lock(&lun->lun_acl_lock);
- list_del(&lacl->lacl_list);
- atomic_dec_mb(&lun->lun_acl_count);
- spin_unlock(&lun->lun_acl_lock);
+ mutex_lock(&nacl->lun_entry_mutex);
+ deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
+ if (deve)
+ core_disable_device_list_for_node(lun, deve, nacl, tpg);
+ mutex_unlock(&nacl->lun_entry_mutex);
- core_disable_device_list_for_node(lun, NULL, lacl->mapped_lun,
- TRANSPORT_LUNFLAGS_NO_ACCESS, nacl, tpg);
-
- lacl->se_lun = NULL;
-
- pr_debug("%s_TPG[%hu]_LUN[%u] - Removed ACL for"
- " InitiatorNode: %s Mapped LUN: %u\n",
+ pr_debug("%s_TPG[%hu]_LUN[%llu] - Removed ACL for"
+ " InitiatorNode: %s Mapped LUN: %llu\n",
tpg->se_tpg_tfo->get_fabric_name(),
tpg->se_tpg_tfo->tpg_get_tag(tpg), lun->unpacked_lun,
lacl->initiatorname, lacl->mapped_lun);
@@ -1424,7 +698,7 @@
struct se_lun_acl *lacl)
{
pr_debug("%s_TPG[%hu] - Freeing ACL for %s InitiatorNode: %s"
- " Mapped LUN: %u\n", tpg->se_tpg_tfo->get_fabric_name(),
+ " Mapped LUN: %llu\n", tpg->se_tpg_tfo->get_fabric_name(),
tpg->se_tpg_tfo->tpg_get_tag(tpg),
tpg->se_tpg_tfo->get_fabric_name(),
lacl->initiatorname, lacl->mapped_lun);
@@ -1473,14 +747,15 @@
struct se_device *dev;
struct se_lun *xcopy_lun;
- dev = hba->transport->alloc_device(hba, name);
+ dev = hba->backend->ops->alloc_device(hba, name);
if (!dev)
return NULL;
dev->dev_link_magic = SE_DEV_LINK_MAGIC;
dev->se_hba = hba;
- dev->transport = hba->transport;
+ dev->transport = hba->backend->ops;
dev->prot_length = sizeof(struct se_dif_v1_tuple);
+ dev->hba_index = hba->hba_index;
INIT_LIST_HEAD(&dev->dev_list);
INIT_LIST_HEAD(&dev->dev_sep_list);
@@ -1513,9 +788,9 @@
dev->dev_attrib.da_dev = dev;
dev->dev_attrib.emulate_model_alias = DA_EMULATE_MODEL_ALIAS;
- dev->dev_attrib.emulate_dpo = DA_EMULATE_DPO;
- dev->dev_attrib.emulate_fua_write = DA_EMULATE_FUA_WRITE;
- dev->dev_attrib.emulate_fua_read = DA_EMULATE_FUA_READ;
+ dev->dev_attrib.emulate_dpo = 1;
+ dev->dev_attrib.emulate_fua_write = 1;
+ dev->dev_attrib.emulate_fua_read = 1;
dev->dev_attrib.emulate_write_cache = DA_EMULATE_WRITE_CACHE;
dev->dev_attrib.emulate_ua_intlck_ctrl = DA_EMULATE_UA_INTLLCK_CTRL;
dev->dev_attrib.emulate_tas = DA_EMULATE_TAS;
@@ -1537,12 +812,12 @@
dev->dev_attrib.max_write_same_len = DA_MAX_WRITE_SAME_LEN;
xcopy_lun = &dev->xcopy_lun;
- xcopy_lun->lun_se_dev = dev;
- init_completion(&xcopy_lun->lun_shutdown_comp);
- INIT_LIST_HEAD(&xcopy_lun->lun_acl_list);
- spin_lock_init(&xcopy_lun->lun_acl_lock);
- spin_lock_init(&xcopy_lun->lun_sep_lock);
+ rcu_assign_pointer(xcopy_lun->lun_se_dev, dev);
init_completion(&xcopy_lun->lun_ref_comp);
+ INIT_LIST_HEAD(&xcopy_lun->lun_deve_list);
+ INIT_LIST_HEAD(&xcopy_lun->lun_dev_link);
+ mutex_init(&xcopy_lun->lun_tg_pt_md_mutex);
+ xcopy_lun->lun_tpg = &xcopy_pt_tpg;
return dev;
}
@@ -1679,7 +954,7 @@
goto out_free_hba;
}
- hba->transport->set_configfs_dev_params(dev, buf, sizeof(buf));
+ hba->backend->ops->set_configfs_dev_params(dev, buf, sizeof(buf));
ret = target_configure_device(dev);
if (ret)
diff --git a/drivers/target/target_core_fabric_configfs.c b/drivers/target/target_core_fabric_configfs.c
index 1f7886b..48a3698 100644
--- a/drivers/target/target_core_fabric_configfs.c
+++ b/drivers/target/target_core_fabric_configfs.c
@@ -36,7 +36,6 @@
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
#include <target/target_core_fabric_configfs.h>
-#include <target/target_core_configfs.h>
#include <target/configfs_macros.h>
#include "target_core_internal.h"
@@ -46,27 +45,25 @@
#define TF_CIT_SETUP(_name, _item_ops, _group_ops, _attrs) \
static void target_fabric_setup_##_name##_cit(struct target_fabric_configfs *tf) \
{ \
- struct target_fabric_configfs_template *tfc = &tf->tf_cit_tmpl; \
- struct config_item_type *cit = &tfc->tfc_##_name##_cit; \
+ struct config_item_type *cit = &tf->tf_##_name##_cit; \
\
cit->ct_item_ops = _item_ops; \
cit->ct_group_ops = _group_ops; \
cit->ct_attrs = _attrs; \
- cit->ct_owner = tf->tf_module; \
+ cit->ct_owner = tf->tf_ops->module; \
pr_debug("Setup generic %s\n", __stringify(_name)); \
}
#define TF_CIT_SETUP_DRV(_name, _item_ops, _group_ops) \
static void target_fabric_setup_##_name##_cit(struct target_fabric_configfs *tf) \
{ \
- struct target_fabric_configfs_template *tfc = &tf->tf_cit_tmpl; \
- struct config_item_type *cit = &tfc->tfc_##_name##_cit; \
- struct configfs_attribute **attrs = tf->tf_ops.tfc_##_name##_attrs; \
+ struct config_item_type *cit = &tf->tf_##_name##_cit; \
+ struct configfs_attribute **attrs = tf->tf_ops->tfc_##_name##_attrs; \
\
cit->ct_item_ops = _item_ops; \
cit->ct_group_ops = _group_ops; \
cit->ct_attrs = attrs; \
- cit->ct_owner = tf->tf_module; \
+ cit->ct_owner = tf->tf_ops->module; \
pr_debug("Setup generic %s\n", __stringify(_name)); \
}
@@ -83,7 +80,7 @@
struct se_lun_acl, se_lun_group);
struct se_portal_group *se_tpg;
struct config_item *nacl_ci, *tpg_ci, *tpg_ci_s, *wwn_ci, *wwn_ci_s;
- int ret = 0, lun_access;
+ int lun_access;
if (lun->lun_link_magic != SE_LUN_LINK_MAGIC) {
pr_err("Bad lun->lun_link_magic, not a valid lun_ci pointer:"
@@ -93,12 +90,11 @@
/*
* Ensure that the source port exists
*/
- if (!lun->lun_sep || !lun->lun_sep->sep_tpg) {
- pr_err("Source se_lun->lun_sep or lun->lun_sep->sep"
- "_tpg does not exist\n");
+ if (!lun->lun_se_dev) {
+ pr_err("Source se_lun->lun_se_dev does not exist\n");
return -EINVAL;
}
- se_tpg = lun->lun_sep->sep_tpg;
+ se_tpg = lun->lun_tpg;
nacl_ci = &lun_acl_ci->ci_parent->ci_group->cg_item;
tpg_ci = &nacl_ci->ci_group->cg_item;
@@ -125,49 +121,35 @@
* which be will write protected (READ-ONLY) when
* tpg_1/attrib/demo_mode_write_protect=1
*/
- spin_lock_irq(&lacl->se_lun_nacl->device_list_lock);
- deve = lacl->se_lun_nacl->device_list[lacl->mapped_lun];
- if (deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS)
+ rcu_read_lock();
+ deve = target_nacl_find_deve(lacl->se_lun_nacl, lacl->mapped_lun);
+ if (deve)
lun_access = deve->lun_flags;
else
lun_access =
(se_tpg->se_tpg_tfo->tpg_check_prod_mode_write_protect(
se_tpg)) ? TRANSPORT_LUNFLAGS_READ_ONLY :
TRANSPORT_LUNFLAGS_READ_WRITE;
- spin_unlock_irq(&lacl->se_lun_nacl->device_list_lock);
+ rcu_read_unlock();
/*
* Determine the actual mapped LUN value user wants..
*
* This value is what the SCSI Initiator actually sees the
- * iscsi/$IQN/$TPGT/lun/lun_* as on their SCSI Initiator Ports.
+ * $FABRIC/$WWPN/$TPGT/lun/lun_* as on their SCSI Initiator Ports.
*/
- ret = core_dev_add_initiator_node_lun_acl(se_tpg, lacl,
- lun->unpacked_lun, lun_access);
-
- return (ret < 0) ? -EINVAL : 0;
+ return core_dev_add_initiator_node_lun_acl(se_tpg, lacl, lun, lun_access);
}
static int target_fabric_mappedlun_unlink(
struct config_item *lun_acl_ci,
struct config_item *lun_ci)
{
- struct se_lun *lun;
struct se_lun_acl *lacl = container_of(to_config_group(lun_acl_ci),
struct se_lun_acl, se_lun_group);
- struct se_node_acl *nacl = lacl->se_lun_nacl;
- struct se_dev_entry *deve = nacl->device_list[lacl->mapped_lun];
- struct se_portal_group *se_tpg;
- /*
- * Determine if the underlying MappedLUN has already been released..
- */
- if (!deve->se_lun)
- return 0;
+ struct se_lun *lun = container_of(to_config_group(lun_ci),
+ struct se_lun, lun_group);
- lun = container_of(to_config_group(lun_ci), struct se_lun, lun_group);
- se_tpg = lun->lun_sep->sep_tpg;
-
- core_dev_del_initiator_node_lun_acl(se_tpg, lun, lacl);
- return 0;
+ return core_dev_del_initiator_node_lun_acl(lun, lacl);
}
CONFIGFS_EATTR_STRUCT(target_fabric_mappedlun, se_lun_acl);
@@ -183,14 +165,15 @@
{
struct se_node_acl *se_nacl = lacl->se_lun_nacl;
struct se_dev_entry *deve;
- ssize_t len;
+ ssize_t len = 0;
- spin_lock_irq(&se_nacl->device_list_lock);
- deve = se_nacl->device_list[lacl->mapped_lun];
- len = sprintf(page, "%d\n",
- (deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY) ?
- 1 : 0);
- spin_unlock_irq(&se_nacl->device_list_lock);
+ rcu_read_lock();
+ deve = target_nacl_find_deve(se_nacl, lacl->mapped_lun);
+ if (deve) {
+ len = sprintf(page, "%d\n",
+ (deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY) ? 1 : 0);
+ }
+ rcu_read_unlock();
return len;
}
@@ -218,7 +201,7 @@
lacl->se_lun_nacl);
pr_debug("%s_ConfigFS: Changed Initiator ACL: %s"
- " Mapped LUN: %u Write Protect bit to %s\n",
+ " Mapped LUN: %llu Write Protect bit to %s\n",
se_tpg->se_tpg_tfo->get_fabric_name(),
lacl->initiatorname, lacl->mapped_lun, (op) ? "ON" : "OFF");
@@ -338,7 +321,7 @@
struct config_item *acl_ci;
struct config_group *lacl_cg = NULL, *ml_stat_grp = NULL;
char *buf;
- unsigned long mapped_lun;
+ unsigned long long mapped_lun;
int ret = 0;
acl_ci = &group->cg_item;
@@ -366,21 +349,9 @@
* Determine the Mapped LUN value. This is what the SCSI Initiator
* Port will actually see.
*/
- ret = kstrtoul(buf + 4, 0, &mapped_lun);
+ ret = kstrtoull(buf + 4, 0, &mapped_lun);
if (ret)
goto out;
- if (mapped_lun > UINT_MAX) {
- ret = -EINVAL;
- goto out;
- }
- if (mapped_lun > (TRANSPORT_MAX_LUNS_PER_TPG-1)) {
- pr_err("Mapped LUN: %lu exceeds TRANSPORT_MAX_LUNS_PER_TPG"
- "-1: %u for Target Portal Group: %u\n", mapped_lun,
- TRANSPORT_MAX_LUNS_PER_TPG-1,
- se_tpg->se_tpg_tfo->tpg_get_tag(se_tpg));
- ret = -EINVAL;
- goto out;
- }
lacl = core_dev_init_initiator_node_lun_acl(se_tpg, se_nacl,
mapped_lun, &ret);
@@ -399,9 +370,9 @@
}
config_group_init_type_name(&lacl->se_lun_group, name,
- &tf->tf_cit_tmpl.tfc_tpg_mappedlun_cit);
+ &tf->tf_tpg_mappedlun_cit);
config_group_init_type_name(&lacl->ml_stat_grps.stat_group,
- "statistics", &tf->tf_cit_tmpl.tfc_tpg_mappedlun_stat_cit);
+ "statistics", &tf->tf_tpg_mappedlun_stat_cit);
lacl_cg->default_groups[0] = &lacl->ml_stat_grps.stat_group;
lacl_cg->default_groups[1] = NULL;
@@ -458,10 +429,11 @@
{
struct se_node_acl *se_nacl = container_of(to_config_group(item),
struct se_node_acl, acl_group);
- struct se_portal_group *se_tpg = se_nacl->se_tpg;
- struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf;
+ struct target_fabric_configfs *tf = se_nacl->se_tpg->se_tpg_wwn->wwn_tf;
- tf->tf_ops.fabric_drop_nodeacl(se_nacl);
+ if (tf->tf_ops->fabric_cleanup_nodeacl)
+ tf->tf_ops->fabric_cleanup_nodeacl(se_nacl);
+ core_tpg_del_initiator_node_acl(se_nacl);
}
static struct configfs_item_operations target_fabric_nacl_base_item_ops = {
@@ -501,15 +473,18 @@
struct se_node_acl *se_nacl;
struct config_group *nacl_cg;
- if (!tf->tf_ops.fabric_make_nodeacl) {
- pr_err("tf->tf_ops.fabric_make_nodeacl is NULL\n");
- return ERR_PTR(-ENOSYS);
- }
-
- se_nacl = tf->tf_ops.fabric_make_nodeacl(se_tpg, group, name);
+ se_nacl = core_tpg_add_initiator_node_acl(se_tpg, name);
if (IS_ERR(se_nacl))
return ERR_CAST(se_nacl);
+ if (tf->tf_ops->fabric_init_nodeacl) {
+ int ret = tf->tf_ops->fabric_init_nodeacl(se_nacl, name);
+ if (ret) {
+ core_tpg_del_initiator_node_acl(se_nacl);
+ return ERR_PTR(ret);
+ }
+ }
+
nacl_cg = &se_nacl->acl_group;
nacl_cg->default_groups = se_nacl->acl_default_groups;
nacl_cg->default_groups[0] = &se_nacl->acl_attrib_group;
@@ -519,16 +494,15 @@
nacl_cg->default_groups[4] = NULL;
config_group_init_type_name(&se_nacl->acl_group, name,
- &tf->tf_cit_tmpl.tfc_tpg_nacl_base_cit);
+ &tf->tf_tpg_nacl_base_cit);
config_group_init_type_name(&se_nacl->acl_attrib_group, "attrib",
- &tf->tf_cit_tmpl.tfc_tpg_nacl_attrib_cit);
+ &tf->tf_tpg_nacl_attrib_cit);
config_group_init_type_name(&se_nacl->acl_auth_group, "auth",
- &tf->tf_cit_tmpl.tfc_tpg_nacl_auth_cit);
+ &tf->tf_tpg_nacl_auth_cit);
config_group_init_type_name(&se_nacl->acl_param_group, "param",
- &tf->tf_cit_tmpl.tfc_tpg_nacl_param_cit);
+ &tf->tf_tpg_nacl_param_cit);
config_group_init_type_name(&se_nacl->acl_fabric_stat_group,
- "fabric_statistics",
- &tf->tf_cit_tmpl.tfc_tpg_nacl_stat_cit);
+ "fabric_statistics", &tf->tf_tpg_nacl_stat_cit);
return &se_nacl->acl_group;
}
@@ -575,7 +549,7 @@
struct se_portal_group *se_tpg = se_tpg_np->tpg_np_parent;
struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf;
- tf->tf_ops.fabric_drop_np(se_tpg_np);
+ tf->tf_ops->fabric_drop_np(se_tpg_np);
}
static struct configfs_item_operations target_fabric_np_base_item_ops = {
@@ -599,18 +573,18 @@
struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf;
struct se_tpg_np *se_tpg_np;
- if (!tf->tf_ops.fabric_make_np) {
+ if (!tf->tf_ops->fabric_make_np) {
pr_err("tf->tf_ops.fabric_make_np is NULL\n");
return ERR_PTR(-ENOSYS);
}
- se_tpg_np = tf->tf_ops.fabric_make_np(se_tpg, group, name);
+ se_tpg_np = tf->tf_ops->fabric_make_np(se_tpg, group, name);
if (!se_tpg_np || IS_ERR(se_tpg_np))
return ERR_PTR(-EINVAL);
se_tpg_np->tpg_np_parent = se_tpg;
config_group_init_type_name(&se_tpg_np->tpg_np_group, name,
- &tf->tf_cit_tmpl.tfc_tpg_np_base_cit);
+ &tf->tf_tpg_np_base_cit);
return &se_tpg_np->tpg_np_group;
}
@@ -654,10 +628,10 @@
struct se_lun *lun,
char *page)
{
- if (!lun || !lun->lun_sep)
+ if (!lun || !lun->lun_se_dev)
return -ENODEV;
- return core_alua_show_tg_pt_gp_info(lun->lun_sep, page);
+ return core_alua_show_tg_pt_gp_info(lun, page);
}
static ssize_t target_fabric_port_store_attr_alua_tg_pt_gp(
@@ -665,10 +639,10 @@
const char *page,
size_t count)
{
- if (!lun || !lun->lun_sep)
+ if (!lun || !lun->lun_se_dev)
return -ENODEV;
- return core_alua_store_tg_pt_gp_info(lun->lun_sep, page, count);
+ return core_alua_store_tg_pt_gp_info(lun, page, count);
}
TCM_PORT_ATTR(alua_tg_pt_gp, S_IRUGO | S_IWUSR);
@@ -680,7 +654,7 @@
struct se_lun *lun,
char *page)
{
- if (!lun || !lun->lun_sep)
+ if (!lun || !lun->lun_se_dev)
return -ENODEV;
return core_alua_show_offline_bit(lun, page);
@@ -691,7 +665,7 @@
const char *page,
size_t count)
{
- if (!lun || !lun->lun_sep)
+ if (!lun || !lun->lun_se_dev)
return -ENODEV;
return core_alua_store_offline_bit(lun, page, count);
@@ -706,7 +680,7 @@
struct se_lun *lun,
char *page)
{
- if (!lun || !lun->lun_sep)
+ if (!lun || !lun->lun_se_dev)
return -ENODEV;
return core_alua_show_secondary_status(lun, page);
@@ -717,7 +691,7 @@
const char *page,
size_t count)
{
- if (!lun || !lun->lun_sep)
+ if (!lun || !lun->lun_se_dev)
return -ENODEV;
return core_alua_store_secondary_status(lun, page, count);
@@ -732,7 +706,7 @@
struct se_lun *lun,
char *page)
{
- if (!lun || !lun->lun_sep)
+ if (!lun || !lun->lun_se_dev)
return -ENODEV;
return core_alua_show_secondary_write_metadata(lun, page);
@@ -743,7 +717,7 @@
const char *page,
size_t count)
{
- if (!lun || !lun->lun_sep)
+ if (!lun || !lun->lun_se_dev)
return -ENODEV;
return core_alua_store_secondary_write_metadata(lun, page, count);
@@ -769,7 +743,6 @@
struct config_item *tpg_ci;
struct se_lun *lun = container_of(to_config_group(lun_ci),
struct se_lun, lun_group);
- struct se_lun *lun_p;
struct se_portal_group *se_tpg;
struct se_device *dev =
container_of(to_config_group(se_dev_ci), struct se_device, dev_group);
@@ -797,20 +770,19 @@
return -EEXIST;
}
- lun_p = core_dev_add_lun(se_tpg, dev, lun->unpacked_lun);
- if (IS_ERR(lun_p)) {
- pr_err("core_dev_add_lun() failed\n");
- ret = PTR_ERR(lun_p);
+ ret = core_dev_add_lun(se_tpg, dev, lun);
+ if (ret) {
+ pr_err("core_dev_add_lun() failed: %d\n", ret);
goto out;
}
- if (tf->tf_ops.fabric_post_link) {
+ if (tf->tf_ops->fabric_post_link) {
/*
* Call the optional fabric_post_link() to allow a
* fabric module to setup any additional state once
* core_dev_add_lun() has been called..
*/
- tf->tf_ops.fabric_post_link(se_tpg, lun);
+ tf->tf_ops->fabric_post_link(se_tpg, lun);
}
return 0;
@@ -824,25 +796,34 @@
{
struct se_lun *lun = container_of(to_config_group(lun_ci),
struct se_lun, lun_group);
- struct se_portal_group *se_tpg = lun->lun_sep->sep_tpg;
+ struct se_portal_group *se_tpg = lun->lun_tpg;
struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf;
- if (tf->tf_ops.fabric_pre_unlink) {
+ if (tf->tf_ops->fabric_pre_unlink) {
/*
* Call the optional fabric_pre_unlink() to allow a
* fabric module to release any additional stat before
* core_dev_del_lun() is called.
*/
- tf->tf_ops.fabric_pre_unlink(se_tpg, lun);
+ tf->tf_ops->fabric_pre_unlink(se_tpg, lun);
}
core_dev_del_lun(se_tpg, lun);
return 0;
}
+static void target_fabric_port_release(struct config_item *item)
+{
+ struct se_lun *lun = container_of(to_config_group(item),
+ struct se_lun, lun_group);
+
+ kfree_rcu(lun, rcu_head);
+}
+
static struct configfs_item_operations target_fabric_port_item_ops = {
.show_attribute = target_fabric_port_attr_show,
.store_attribute = target_fabric_port_attr_store,
+ .release = target_fabric_port_release,
.allow_link = target_fabric_port_link,
.drop_link = target_fabric_port_unlink,
};
@@ -887,7 +868,7 @@
struct se_portal_group, tpg_lun_group);
struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf;
struct config_group *lun_cg = NULL, *port_stat_grp = NULL;
- unsigned long unpacked_lun;
+ unsigned long long unpacked_lun;
int errno;
if (strstr(name, "lun_") != name) {
@@ -895,28 +876,27 @@
" \"lun_$LUN_NUMBER\"\n");
return ERR_PTR(-EINVAL);
}
- errno = kstrtoul(name + 4, 0, &unpacked_lun);
+ errno = kstrtoull(name + 4, 0, &unpacked_lun);
if (errno)
return ERR_PTR(errno);
- if (unpacked_lun > UINT_MAX)
- return ERR_PTR(-EINVAL);
- lun = core_get_lun_from_tpg(se_tpg, unpacked_lun);
- if (!lun)
- return ERR_PTR(-EINVAL);
+ lun = core_tpg_alloc_lun(se_tpg, unpacked_lun);
+ if (IS_ERR(lun))
+ return ERR_CAST(lun);
lun_cg = &lun->lun_group;
lun_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2,
GFP_KERNEL);
if (!lun_cg->default_groups) {
pr_err("Unable to allocate lun_cg->default_groups\n");
+ kfree(lun);
return ERR_PTR(-ENOMEM);
}
config_group_init_type_name(&lun->lun_group, name,
- &tf->tf_cit_tmpl.tfc_tpg_port_cit);
+ &tf->tf_tpg_port_cit);
config_group_init_type_name(&lun->port_stat_grps.stat_group,
- "statistics", &tf->tf_cit_tmpl.tfc_tpg_port_stat_cit);
+ "statistics", &tf->tf_tpg_port_stat_cit);
lun_cg->default_groups[0] = &lun->port_stat_grps.stat_group;
lun_cg->default_groups[1] = NULL;
@@ -926,6 +906,7 @@
if (!port_stat_grp->default_groups) {
pr_err("Unable to allocate port_stat_grp->default_groups\n");
kfree(lun_cg->default_groups);
+ kfree(lun);
return ERR_PTR(-ENOMEM);
}
target_stat_setup_port_default_groups(lun);
@@ -1023,7 +1004,7 @@
struct se_wwn *wwn = se_tpg->se_tpg_wwn;
struct target_fabric_configfs *tf = wwn->wwn_tf;
- tf->tf_ops.fabric_drop_tpg(se_tpg);
+ tf->tf_ops->fabric_drop_tpg(se_tpg);
}
static struct configfs_item_operations target_fabric_tpg_base_item_ops = {
@@ -1046,12 +1027,12 @@
struct target_fabric_configfs *tf = wwn->wwn_tf;
struct se_portal_group *se_tpg;
- if (!tf->tf_ops.fabric_make_tpg) {
- pr_err("tf->tf_ops.fabric_make_tpg is NULL\n");
+ if (!tf->tf_ops->fabric_make_tpg) {
+ pr_err("tf->tf_ops->fabric_make_tpg is NULL\n");
return ERR_PTR(-ENOSYS);
}
- se_tpg = tf->tf_ops.fabric_make_tpg(wwn, group, name);
+ se_tpg = tf->tf_ops->fabric_make_tpg(wwn, group, name);
if (!se_tpg || IS_ERR(se_tpg))
return ERR_PTR(-EINVAL);
/*
@@ -1067,19 +1048,19 @@
se_tpg->tpg_group.default_groups[6] = NULL;
config_group_init_type_name(&se_tpg->tpg_group, name,
- &tf->tf_cit_tmpl.tfc_tpg_base_cit);
+ &tf->tf_tpg_base_cit);
config_group_init_type_name(&se_tpg->tpg_lun_group, "lun",
- &tf->tf_cit_tmpl.tfc_tpg_lun_cit);
+ &tf->tf_tpg_lun_cit);
config_group_init_type_name(&se_tpg->tpg_np_group, "np",
- &tf->tf_cit_tmpl.tfc_tpg_np_cit);
+ &tf->tf_tpg_np_cit);
config_group_init_type_name(&se_tpg->tpg_acl_group, "acls",
- &tf->tf_cit_tmpl.tfc_tpg_nacl_cit);
+ &tf->tf_tpg_nacl_cit);
config_group_init_type_name(&se_tpg->tpg_attrib_group, "attrib",
- &tf->tf_cit_tmpl.tfc_tpg_attrib_cit);
+ &tf->tf_tpg_attrib_cit);
config_group_init_type_name(&se_tpg->tpg_auth_group, "auth",
- &tf->tf_cit_tmpl.tfc_tpg_auth_cit);
+ &tf->tf_tpg_auth_cit);
config_group_init_type_name(&se_tpg->tpg_param_group, "param",
- &tf->tf_cit_tmpl.tfc_tpg_param_cit);
+ &tf->tf_tpg_param_cit);
return &se_tpg->tpg_group;
}
@@ -1112,7 +1093,7 @@
struct se_wwn, wwn_group);
struct target_fabric_configfs *tf = wwn->wwn_tf;
- tf->tf_ops.fabric_drop_wwn(wwn);
+ tf->tf_ops->fabric_drop_wwn(wwn);
}
static struct configfs_item_operations target_fabric_tpg_item_ops = {
@@ -1148,12 +1129,12 @@
struct target_fabric_configfs, tf_group);
struct se_wwn *wwn;
- if (!tf->tf_ops.fabric_make_wwn) {
+ if (!tf->tf_ops->fabric_make_wwn) {
pr_err("tf->tf_ops.fabric_make_wwn is NULL\n");
return ERR_PTR(-ENOSYS);
}
- wwn = tf->tf_ops.fabric_make_wwn(tf, group, name);
+ wwn = tf->tf_ops->fabric_make_wwn(tf, group, name);
if (!wwn || IS_ERR(wwn))
return ERR_PTR(-EINVAL);
@@ -1165,10 +1146,9 @@
wwn->wwn_group.default_groups[0] = &wwn->fabric_stat_group;
wwn->wwn_group.default_groups[1] = NULL;
- config_group_init_type_name(&wwn->wwn_group, name,
- &tf->tf_cit_tmpl.tfc_tpg_cit);
+ config_group_init_type_name(&wwn->wwn_group, name, &tf->tf_tpg_cit);
config_group_init_type_name(&wwn->fabric_stat_group, "fabric_statistics",
- &tf->tf_cit_tmpl.tfc_wwn_fabric_stats_cit);
+ &tf->tf_wwn_fabric_stats_cit);
return &wwn->wwn_group;
}
diff --git a/drivers/target/target_core_fabric_lib.c b/drivers/target/target_core_fabric_lib.c
index 41f4f27..cb6497c 100644
--- a/drivers/target/target_core_fabric_lib.c
+++ b/drivers/target/target_core_fabric_lib.c
@@ -24,6 +24,11 @@
*
******************************************************************************/
+/*
+ * See SPC4, section 7.5 "Protocol specific parameters" for details
+ * on the formats implemented in this file.
+ */
+
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/ctype.h>
@@ -34,124 +39,30 @@
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
-#include <target/target_core_configfs.h>
#include "target_core_internal.h"
#include "target_core_pr.h"
-/*
- * Handlers for Serial Attached SCSI (SAS)
- */
-u8 sas_get_fabric_proto_ident(struct se_portal_group *se_tpg)
-{
- /*
- * Return a SAS Serial SCSI Protocol identifier for loopback operations
- * This is defined in section 7.5.1 Table 362 in spc4r17
- */
- return 0x6;
-}
-EXPORT_SYMBOL(sas_get_fabric_proto_ident);
-u32 sas_get_pr_transport_id(
- struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl,
- struct t10_pr_registration *pr_reg,
+static int sas_get_pr_transport_id(
+ struct se_node_acl *nacl,
int *format_code,
unsigned char *buf)
{
- unsigned char *ptr;
int ret;
- /*
- * Set PROTOCOL IDENTIFIER to 6h for SAS
- */
- buf[0] = 0x06;
- /*
- * From spc4r17, 7.5.4.7 TransportID for initiator ports using SCSI
- * over SAS Serial SCSI Protocol
- */
- ptr = &se_nacl->initiatorname[4]; /* Skip over 'naa. prefix */
+ /* Skip over 'naa. prefix */
+ ret = hex2bin(&buf[4], &nacl->initiatorname[4], 8);
+ if (ret) {
+ pr_debug("%s: invalid hex string\n", __func__);
+ return ret;
+ }
- ret = hex2bin(&buf[4], ptr, 8);
- if (ret < 0)
- pr_debug("sas transport_id: invalid hex string\n");
-
- /*
- * The SAS Transport ID is a hardcoded 24-byte length
- */
return 24;
}
-EXPORT_SYMBOL(sas_get_pr_transport_id);
-u32 sas_get_pr_transport_id_len(
- struct se_portal_group *se_tpg,
+static int fc_get_pr_transport_id(
struct se_node_acl *se_nacl,
- struct t10_pr_registration *pr_reg,
- int *format_code)
-{
- *format_code = 0;
- /*
- * From spc4r17, 7.5.4.7 TransportID for initiator ports using SCSI
- * over SAS Serial SCSI Protocol
- *
- * The SAS Transport ID is a hardcoded 24-byte length
- */
- return 24;
-}
-EXPORT_SYMBOL(sas_get_pr_transport_id_len);
-
-/*
- * Used for handling SCSI fabric dependent TransportIDs in SPC-3 and above
- * Persistent Reservation SPEC_I_PT=1 and PROUT REGISTER_AND_MOVE operations.
- */
-char *sas_parse_pr_out_transport_id(
- struct se_portal_group *se_tpg,
- const char *buf,
- u32 *out_tid_len,
- char **port_nexus_ptr)
-{
- /*
- * Assume the FORMAT CODE 00b from spc4r17, 7.5.4.7 TransportID
- * for initiator ports using SCSI over SAS Serial SCSI Protocol
- *
- * The TransportID for a SAS Initiator Port is of fixed size of
- * 24 bytes, and SAS does not contain a I_T nexus identifier,
- * so we return the **port_nexus_ptr set to NULL.
- */
- *port_nexus_ptr = NULL;
- *out_tid_len = 24;
-
- return (char *)&buf[4];
-}
-EXPORT_SYMBOL(sas_parse_pr_out_transport_id);
-
-/*
- * Handlers for Fibre Channel Protocol (FCP)
- */
-u8 fc_get_fabric_proto_ident(struct se_portal_group *se_tpg)
-{
- return 0x0; /* 0 = fcp-2 per SPC4 section 7.5.1 */
-}
-EXPORT_SYMBOL(fc_get_fabric_proto_ident);
-
-u32 fc_get_pr_transport_id_len(
- struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl,
- struct t10_pr_registration *pr_reg,
- int *format_code)
-{
- *format_code = 0;
- /*
- * The FC Transport ID is a hardcoded 24-byte length
- */
- return 24;
-}
-EXPORT_SYMBOL(fc_get_pr_transport_id_len);
-
-u32 fc_get_pr_transport_id(
- struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl,
- struct t10_pr_registration *pr_reg,
int *format_code,
unsigned char *buf)
{
@@ -160,24 +71,20 @@
u32 off = 8;
/*
- * PROTOCOL IDENTIFIER is 0h for FCP-2
- *
- * From spc4r17, 7.5.4.2 TransportID for initiator ports using
- * SCSI over Fibre Channel
- *
* We convert the ASCII formatted N Port name into a binary
* encoded TransportID.
*/
ptr = &se_nacl->initiatorname[0];
-
for (i = 0; i < 24; ) {
if (!strncmp(&ptr[i], ":", 1)) {
i++;
continue;
}
ret = hex2bin(&buf[off++], &ptr[i], 1);
- if (ret < 0)
- pr_debug("fc transport_id: invalid hex string\n");
+ if (ret < 0) {
+ pr_debug("%s: invalid hex string\n", __func__);
+ return ret;
+ }
i += 2;
}
/*
@@ -185,42 +92,52 @@
*/
return 24;
}
-EXPORT_SYMBOL(fc_get_pr_transport_id);
-char *fc_parse_pr_out_transport_id(
- struct se_portal_group *se_tpg,
- const char *buf,
- u32 *out_tid_len,
- char **port_nexus_ptr)
+static int sbp_get_pr_transport_id(
+ struct se_node_acl *nacl,
+ int *format_code,
+ unsigned char *buf)
{
- /*
- * The TransportID for a FC N Port is of fixed size of
- * 24 bytes, and FC does not contain a I_T nexus identifier,
- * so we return the **port_nexus_ptr set to NULL.
- */
- *port_nexus_ptr = NULL;
- *out_tid_len = 24;
+ int ret;
- return (char *)&buf[8];
+ ret = hex2bin(&buf[8], nacl->initiatorname, 8);
+ if (ret) {
+ pr_debug("%s: invalid hex string\n", __func__);
+ return ret;
+ }
+
+ return 24;
}
-EXPORT_SYMBOL(fc_parse_pr_out_transport_id);
-/*
- * Handlers for Internet Small Computer Systems Interface (iSCSI)
- */
-
-u8 iscsi_get_fabric_proto_ident(struct se_portal_group *se_tpg)
+static int srp_get_pr_transport_id(
+ struct se_node_acl *nacl,
+ int *format_code,
+ unsigned char *buf)
{
- /*
- * This value is defined for "Internet SCSI (iSCSI)"
- * in spc4r17 section 7.5.1 Table 362
- */
- return 0x5;
-}
-EXPORT_SYMBOL(iscsi_get_fabric_proto_ident);
+ const char *p;
+ unsigned len, count, leading_zero_bytes;
+ int rc;
-u32 iscsi_get_pr_transport_id(
- struct se_portal_group *se_tpg,
+ p = nacl->initiatorname;
+ if (strncasecmp(p, "0x", 2) == 0)
+ p += 2;
+ len = strlen(p);
+ if (len % 2)
+ return -EINVAL;
+
+ count = min(len / 2, 16U);
+ leading_zero_bytes = 16 - count;
+ memset(buf + 8, 0, leading_zero_bytes);
+ rc = hex2bin(buf + 8 + leading_zero_bytes, p, count);
+ if (rc < 0) {
+ pr_debug("hex2bin failed for %s: %d\n", __func__, rc);
+ return rc;
+ }
+
+ return 24;
+}
+
+static int iscsi_get_pr_transport_id(
struct se_node_acl *se_nacl,
struct t10_pr_registration *pr_reg,
int *format_code,
@@ -231,10 +148,6 @@
spin_lock_irq(&se_nacl->nacl_sess_lock);
/*
- * Set PROTOCOL IDENTIFIER to 5h for iSCSI
- */
- buf[0] = 0x05;
- /*
* From spc4r17 Section 7.5.4.6: TransportID for initiator
* ports using SCSI over iSCSI.
*
@@ -313,10 +226,8 @@
return len;
}
-EXPORT_SYMBOL(iscsi_get_pr_transport_id);
-u32 iscsi_get_pr_transport_id_len(
- struct se_portal_group *se_tpg,
+static int iscsi_get_pr_transport_id_len(
struct se_node_acl *se_nacl,
struct t10_pr_registration *pr_reg,
int *format_code)
@@ -359,9 +270,8 @@
return len;
}
-EXPORT_SYMBOL(iscsi_get_pr_transport_id_len);
-char *iscsi_parse_pr_out_transport_id(
+static char *iscsi_parse_pr_out_transport_id(
struct se_portal_group *se_tpg,
const char *buf,
u32 *out_tid_len,
@@ -448,4 +358,79 @@
return (char *)&buf[4];
}
-EXPORT_SYMBOL(iscsi_parse_pr_out_transport_id);
+
+int target_get_pr_transport_id_len(struct se_node_acl *nacl,
+ struct t10_pr_registration *pr_reg, int *format_code)
+{
+ switch (nacl->se_tpg->proto_id) {
+ case SCSI_PROTOCOL_FCP:
+ case SCSI_PROTOCOL_SBP:
+ case SCSI_PROTOCOL_SRP:
+ case SCSI_PROTOCOL_SAS:
+ break;
+ case SCSI_PROTOCOL_ISCSI:
+ return iscsi_get_pr_transport_id_len(nacl, pr_reg, format_code);
+ default:
+ pr_err("Unknown proto_id: 0x%02x\n", nacl->se_tpg->proto_id);
+ return -EINVAL;
+ }
+
+ /*
+ * Most transports use a fixed length 24 byte identifier.
+ */
+ *format_code = 0;
+ return 24;
+}
+
+int target_get_pr_transport_id(struct se_node_acl *nacl,
+ struct t10_pr_registration *pr_reg, int *format_code,
+ unsigned char *buf)
+{
+ switch (nacl->se_tpg->proto_id) {
+ case SCSI_PROTOCOL_SAS:
+ return sas_get_pr_transport_id(nacl, format_code, buf);
+ case SCSI_PROTOCOL_SBP:
+ return sbp_get_pr_transport_id(nacl, format_code, buf);
+ case SCSI_PROTOCOL_SRP:
+ return srp_get_pr_transport_id(nacl, format_code, buf);
+ case SCSI_PROTOCOL_FCP:
+ return fc_get_pr_transport_id(nacl, format_code, buf);
+ case SCSI_PROTOCOL_ISCSI:
+ return iscsi_get_pr_transport_id(nacl, pr_reg, format_code,
+ buf);
+ default:
+ pr_err("Unknown proto_id: 0x%02x\n", nacl->se_tpg->proto_id);
+ return -EINVAL;
+ }
+}
+
+const char *target_parse_pr_out_transport_id(struct se_portal_group *tpg,
+ const char *buf, u32 *out_tid_len, char **port_nexus_ptr)
+{
+ u32 offset;
+
+ switch (tpg->proto_id) {
+ case SCSI_PROTOCOL_SAS:
+ /*
+ * Assume the FORMAT CODE 00b from spc4r17, 7.5.4.7 TransportID
+ * for initiator ports using SCSI over SAS Serial SCSI Protocol.
+ */
+ offset = 4;
+ break;
+ case SCSI_PROTOCOL_SBP:
+ case SCSI_PROTOCOL_SRP:
+ case SCSI_PROTOCOL_FCP:
+ offset = 8;
+ break;
+ case SCSI_PROTOCOL_ISCSI:
+ return iscsi_parse_pr_out_transport_id(tpg, buf, out_tid_len,
+ port_nexus_ptr);
+ default:
+ pr_err("Unknown proto_id: 0x%02x\n", tpg->proto_id);
+ return NULL;
+ }
+
+ *port_nexus_ptr = NULL;
+ *out_tid_len = 24;
+ return buf + offset;
+}
diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c
index 6641713..e319570 100644
--- a/drivers/target/target_core_file.c
+++ b/drivers/target/target_core_file.c
@@ -37,7 +37,6 @@
#include <target/target_core_base.h>
#include <target/target_core_backend.h>
-#include <target/target_core_backend_configfs.h>
#include "target_core_file.h"
@@ -46,10 +45,6 @@
return container_of(dev, struct fd_dev, dev);
}
-/* fd_attach_hba(): (Part of se_subsystem_api_t template)
- *
- *
- */
static int fd_attach_hba(struct se_hba *hba, u32 host_id)
{
struct fd_host *fd_host;
@@ -66,7 +61,7 @@
pr_debug("CORE_HBA[%d] - TCM FILEIO HBA Driver %s on Generic"
" Target Core Stack %s\n", hba->hba_id, FD_VERSION,
- TARGET_CORE_MOD_VERSION);
+ TARGET_CORE_VERSION);
pr_debug("CORE_HBA[%d] - Attached FILEIO HBA: %u to Generic\n",
hba->hba_id, fd_host->fd_host_id);
@@ -246,6 +241,14 @@
return ret;
}
+static void fd_dev_call_rcu(struct rcu_head *p)
+{
+ struct se_device *dev = container_of(p, struct se_device, rcu_head);
+ struct fd_dev *fd_dev = FD_DEV(dev);
+
+ kfree(fd_dev);
+}
+
static void fd_free_device(struct se_device *dev)
{
struct fd_dev *fd_dev = FD_DEV(dev);
@@ -254,79 +257,18 @@
filp_close(fd_dev->fd_file, NULL);
fd_dev->fd_file = NULL;
}
-
- kfree(fd_dev);
+ call_rcu(&dev->rcu_head, fd_dev_call_rcu);
}
-static int fd_do_prot_rw(struct se_cmd *cmd, struct fd_prot *fd_prot,
- int is_write)
+static int fd_do_rw(struct se_cmd *cmd, struct file *fd,
+ u32 block_size, struct scatterlist *sgl,
+ u32 sgl_nents, u32 data_length, int is_write)
{
- struct se_device *se_dev = cmd->se_dev;
- struct fd_dev *dev = FD_DEV(se_dev);
- struct file *prot_fd = dev->fd_prot_file;
- loff_t pos = (cmd->t_task_lba * se_dev->prot_length);
- unsigned char *buf;
- u32 prot_size;
- int rc, ret = 1;
-
- prot_size = (cmd->data_length / se_dev->dev_attrib.block_size) *
- se_dev->prot_length;
-
- if (!is_write) {
- fd_prot->prot_buf = kzalloc(prot_size, GFP_KERNEL);
- if (!fd_prot->prot_buf) {
- pr_err("Unable to allocate fd_prot->prot_buf\n");
- return -ENOMEM;
- }
- buf = fd_prot->prot_buf;
-
- fd_prot->prot_sg_nents = 1;
- fd_prot->prot_sg = kzalloc(sizeof(struct scatterlist),
- GFP_KERNEL);
- if (!fd_prot->prot_sg) {
- pr_err("Unable to allocate fd_prot->prot_sg\n");
- kfree(fd_prot->prot_buf);
- return -ENOMEM;
- }
- sg_init_table(fd_prot->prot_sg, fd_prot->prot_sg_nents);
- sg_set_buf(fd_prot->prot_sg, buf, prot_size);
- }
-
- if (is_write) {
- rc = kernel_write(prot_fd, fd_prot->prot_buf, prot_size, pos);
- if (rc < 0 || prot_size != rc) {
- pr_err("kernel_write() for fd_do_prot_rw failed:"
- " %d\n", rc);
- ret = -EINVAL;
- }
- } else {
- rc = kernel_read(prot_fd, pos, fd_prot->prot_buf, prot_size);
- if (rc < 0) {
- pr_err("kernel_read() for fd_do_prot_rw failed:"
- " %d\n", rc);
- ret = -EINVAL;
- }
- }
-
- if (is_write || ret < 0) {
- kfree(fd_prot->prot_sg);
- kfree(fd_prot->prot_buf);
- }
-
- return ret;
-}
-
-static int fd_do_rw(struct se_cmd *cmd, struct scatterlist *sgl,
- u32 sgl_nents, int is_write)
-{
- struct se_device *se_dev = cmd->se_dev;
- struct fd_dev *dev = FD_DEV(se_dev);
- struct file *fd = dev->fd_file;
struct scatterlist *sg;
struct iov_iter iter;
struct bio_vec *bvec;
ssize_t len = 0;
- loff_t pos = (cmd->t_task_lba * se_dev->dev_attrib.block_size);
+ loff_t pos = (cmd->t_task_lba * block_size);
int ret = 0, i;
bvec = kcalloc(sgl_nents, sizeof(struct bio_vec), GFP_KERNEL);
@@ -352,7 +294,7 @@
kfree(bvec);
if (is_write) {
- if (ret < 0 || ret != cmd->data_length) {
+ if (ret < 0 || ret != data_length) {
pr_err("%s() write returned %d\n", __func__, ret);
return (ret < 0 ? ret : -EINVAL);
}
@@ -363,10 +305,10 @@
* block_device.
*/
if (S_ISBLK(file_inode(fd)->i_mode)) {
- if (ret < 0 || ret != cmd->data_length) {
+ if (ret < 0 || ret != data_length) {
pr_err("%s() returned %d, expecting %u for "
"S_ISBLK\n", __func__, ret,
- cmd->data_length);
+ data_length);
return (ret < 0 ? ret : -EINVAL);
}
} else {
@@ -533,9 +475,9 @@
}
static sense_reason_t
-fd_do_unmap(struct se_cmd *cmd, void *priv, sector_t lba, sector_t nolb)
+fd_execute_unmap(struct se_cmd *cmd, sector_t lba, sector_t nolb)
{
- struct file *file = priv;
+ struct file *file = FD_DEV(cmd->se_dev)->fd_file;
struct inode *inode = file->f_mapping->host;
int ret;
@@ -577,42 +519,13 @@
}
static sense_reason_t
-fd_execute_write_same_unmap(struct se_cmd *cmd)
-{
- struct se_device *se_dev = cmd->se_dev;
- struct fd_dev *fd_dev = FD_DEV(se_dev);
- struct file *file = fd_dev->fd_file;
- sector_t lba = cmd->t_task_lba;
- sector_t nolb = sbc_get_write_same_sectors(cmd);
- sense_reason_t ret;
-
- if (!nolb) {
- target_complete_cmd(cmd, SAM_STAT_GOOD);
- return 0;
- }
-
- ret = fd_do_unmap(cmd, file, lba, nolb);
- if (ret)
- return ret;
-
- target_complete_cmd(cmd, GOOD);
- return 0;
-}
-
-static sense_reason_t
-fd_execute_unmap(struct se_cmd *cmd)
-{
- struct file *file = FD_DEV(cmd->se_dev)->fd_file;
-
- return sbc_execute_unmap(cmd, fd_do_unmap, file);
-}
-
-static sense_reason_t
fd_execute_rw(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents,
enum dma_data_direction data_direction)
{
struct se_device *dev = cmd->se_dev;
- struct fd_prot fd_prot;
+ struct fd_dev *fd_dev = FD_DEV(dev);
+ struct file *file = fd_dev->fd_file;
+ struct file *pfile = fd_dev->fd_prot_file;
sense_reason_t rc;
int ret = 0;
/*
@@ -630,58 +543,45 @@
* physical memory addresses to struct iovec virtual memory.
*/
if (data_direction == DMA_FROM_DEVICE) {
- memset(&fd_prot, 0, sizeof(struct fd_prot));
-
if (cmd->prot_type && dev->dev_attrib.pi_prot_type) {
- ret = fd_do_prot_rw(cmd, &fd_prot, false);
+ ret = fd_do_rw(cmd, pfile, dev->prot_length,
+ cmd->t_prot_sg, cmd->t_prot_nents,
+ cmd->prot_length, 0);
if (ret < 0)
return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
}
- ret = fd_do_rw(cmd, sgl, sgl_nents, 0);
+ ret = fd_do_rw(cmd, file, dev->dev_attrib.block_size,
+ sgl, sgl_nents, cmd->data_length, 0);
if (ret > 0 && cmd->prot_type && dev->dev_attrib.pi_prot_type) {
- u32 sectors = cmd->data_length / dev->dev_attrib.block_size;
+ u32 sectors = cmd->data_length >>
+ ilog2(dev->dev_attrib.block_size);
- rc = sbc_dif_verify_read(cmd, cmd->t_task_lba, sectors,
- 0, fd_prot.prot_sg, 0);
- if (rc) {
- kfree(fd_prot.prot_sg);
- kfree(fd_prot.prot_buf);
+ rc = sbc_dif_verify(cmd, cmd->t_task_lba, sectors,
+ 0, cmd->t_prot_sg, 0);
+ if (rc)
return rc;
- }
- kfree(fd_prot.prot_sg);
- kfree(fd_prot.prot_buf);
}
} else {
- memset(&fd_prot, 0, sizeof(struct fd_prot));
-
if (cmd->prot_type && dev->dev_attrib.pi_prot_type) {
- u32 sectors = cmd->data_length / dev->dev_attrib.block_size;
+ u32 sectors = cmd->data_length >>
+ ilog2(dev->dev_attrib.block_size);
- ret = fd_do_prot_rw(cmd, &fd_prot, false);
- if (ret < 0)
- return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
-
- rc = sbc_dif_verify_write(cmd, cmd->t_task_lba, sectors,
- 0, fd_prot.prot_sg, 0);
- if (rc) {
- kfree(fd_prot.prot_sg);
- kfree(fd_prot.prot_buf);
+ rc = sbc_dif_verify(cmd, cmd->t_task_lba, sectors,
+ 0, cmd->t_prot_sg, 0);
+ if (rc)
return rc;
- }
}
- ret = fd_do_rw(cmd, sgl, sgl_nents, 1);
+ ret = fd_do_rw(cmd, file, dev->dev_attrib.block_size,
+ sgl, sgl_nents, cmd->data_length, 1);
/*
* Perform implicit vfs_fsync_range() for fd_do_writev() ops
* for SCSI WRITEs with Forced Unit Access (FUA) set.
* Allow this to happen independent of WCE=0 setting.
*/
- if (ret > 0 &&
- dev->dev_attrib.emulate_fua_write > 0 &&
- (cmd->se_cmd_flags & SCF_FUA)) {
- struct fd_dev *fd_dev = FD_DEV(dev);
+ if (ret > 0 && (cmd->se_cmd_flags & SCF_FUA)) {
loff_t start = cmd->t_task_lba *
dev->dev_attrib.block_size;
loff_t end;
@@ -695,17 +595,16 @@
}
if (ret > 0 && cmd->prot_type && dev->dev_attrib.pi_prot_type) {
- ret = fd_do_prot_rw(cmd, &fd_prot, true);
+ ret = fd_do_rw(cmd, pfile, dev->prot_length,
+ cmd->t_prot_sg, cmd->t_prot_nents,
+ cmd->prot_length, 1);
if (ret < 0)
return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
}
}
- if (ret < 0) {
- kfree(fd_prot.prot_sg);
- kfree(fd_prot.prot_buf);
+ if (ret < 0)
return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
- }
if (ret)
target_complete_cmd(cmd, SAM_STAT_GOOD);
@@ -908,7 +807,6 @@
.execute_rw = fd_execute_rw,
.execute_sync_cache = fd_execute_sync_cache,
.execute_write_same = fd_execute_write_same,
- .execute_write_same_unmap = fd_execute_write_same_unmap,
.execute_unmap = fd_execute_unmap,
};
@@ -918,42 +816,7 @@
return sbc_parse_cdb(cmd, &fd_sbc_ops);
}
-DEF_TB_DEFAULT_ATTRIBS(fileio);
-
-static struct configfs_attribute *fileio_backend_dev_attrs[] = {
- &fileio_dev_attrib_emulate_model_alias.attr,
- &fileio_dev_attrib_emulate_dpo.attr,
- &fileio_dev_attrib_emulate_fua_write.attr,
- &fileio_dev_attrib_emulate_fua_read.attr,
- &fileio_dev_attrib_emulate_write_cache.attr,
- &fileio_dev_attrib_emulate_ua_intlck_ctrl.attr,
- &fileio_dev_attrib_emulate_tas.attr,
- &fileio_dev_attrib_emulate_tpu.attr,
- &fileio_dev_attrib_emulate_tpws.attr,
- &fileio_dev_attrib_emulate_caw.attr,
- &fileio_dev_attrib_emulate_3pc.attr,
- &fileio_dev_attrib_pi_prot_type.attr,
- &fileio_dev_attrib_hw_pi_prot_type.attr,
- &fileio_dev_attrib_pi_prot_format.attr,
- &fileio_dev_attrib_enforce_pr_isids.attr,
- &fileio_dev_attrib_is_nonrot.attr,
- &fileio_dev_attrib_emulate_rest_reord.attr,
- &fileio_dev_attrib_force_pr_aptpl.attr,
- &fileio_dev_attrib_hw_block_size.attr,
- &fileio_dev_attrib_block_size.attr,
- &fileio_dev_attrib_hw_max_sectors.attr,
- &fileio_dev_attrib_optimal_sectors.attr,
- &fileio_dev_attrib_hw_queue_depth.attr,
- &fileio_dev_attrib_queue_depth.attr,
- &fileio_dev_attrib_max_unmap_lba_count.attr,
- &fileio_dev_attrib_max_unmap_block_desc_count.attr,
- &fileio_dev_attrib_unmap_granularity.attr,
- &fileio_dev_attrib_unmap_granularity_alignment.attr,
- &fileio_dev_attrib_max_write_same_len.attr,
- NULL,
-};
-
-static struct se_subsystem_api fileio_template = {
+static const struct target_backend_ops fileio_ops = {
.name = "fileio",
.inquiry_prod = "FILEIO",
.inquiry_rev = FD_VERSION,
@@ -971,21 +834,17 @@
.init_prot = fd_init_prot,
.format_prot = fd_format_prot,
.free_prot = fd_free_prot,
+ .tb_dev_attrib_attrs = sbc_attrib_attrs,
};
static int __init fileio_module_init(void)
{
- struct target_backend_cits *tbc = &fileio_template.tb_cits;
-
- target_core_setup_sub_cits(&fileio_template);
- tbc->tb_dev_attrib_cit.ct_attrs = fileio_backend_dev_attrs;
-
- return transport_subsystem_register(&fileio_template);
+ return transport_backend_register(&fileio_ops);
}
static void __exit fileio_module_exit(void)
{
- transport_subsystem_release(&fileio_template);
+ target_backend_unregister(&fileio_ops);
}
MODULE_DESCRIPTION("TCM FILEIO subsystem plugin");
diff --git a/drivers/target/target_core_file.h b/drivers/target/target_core_file.h
index 182cbb2..068966f 100644
--- a/drivers/target/target_core_file.h
+++ b/drivers/target/target_core_file.h
@@ -21,12 +21,6 @@
#define FDBD_HAS_BUFFERED_IO_WCE 0x04
#define FDBD_FORMAT_UNIT_SIZE 2048
-struct fd_prot {
- unsigned char *prot_buf;
- struct scatterlist *prot_sg;
- u32 prot_sg_nents;
-};
-
struct fd_dev {
struct se_device dev;
diff --git a/drivers/target/target_core_hba.c b/drivers/target/target_core_hba.c
index ff95f95..62ea4e8 100644
--- a/drivers/target/target_core_hba.c
+++ b/drivers/target/target_core_hba.c
@@ -36,67 +36,78 @@
#include <target/target_core_base.h>
#include <target/target_core_backend.h>
#include <target/target_core_fabric.h>
-#include <target/target_core_configfs.h>
#include "target_core_internal.h"
-static LIST_HEAD(subsystem_list);
-static DEFINE_MUTEX(subsystem_mutex);
+static LIST_HEAD(backend_list);
+static DEFINE_MUTEX(backend_mutex);
static u32 hba_id_counter;
static DEFINE_SPINLOCK(hba_lock);
static LIST_HEAD(hba_list);
-int transport_subsystem_register(struct se_subsystem_api *sub_api)
+
+int transport_backend_register(const struct target_backend_ops *ops)
{
- struct se_subsystem_api *s;
+ struct target_backend *tb, *old;
- INIT_LIST_HEAD(&sub_api->sub_api_list);
+ tb = kzalloc(sizeof(*tb), GFP_KERNEL);
+ if (!tb)
+ return -ENOMEM;
+ tb->ops = ops;
- mutex_lock(&subsystem_mutex);
- list_for_each_entry(s, &subsystem_list, sub_api_list) {
- if (!strcmp(s->name, sub_api->name)) {
- pr_err("%p is already registered with"
- " duplicate name %s, unable to process"
- " request\n", s, s->name);
- mutex_unlock(&subsystem_mutex);
+ mutex_lock(&backend_mutex);
+ list_for_each_entry(old, &backend_list, list) {
+ if (!strcmp(old->ops->name, ops->name)) {
+ pr_err("backend %s already registered.\n", ops->name);
+ mutex_unlock(&backend_mutex);
+ kfree(tb);
return -EEXIST;
}
}
- list_add_tail(&sub_api->sub_api_list, &subsystem_list);
- mutex_unlock(&subsystem_mutex);
+ target_setup_backend_cits(tb);
+ list_add_tail(&tb->list, &backend_list);
+ mutex_unlock(&backend_mutex);
- pr_debug("TCM: Registered subsystem plugin: %s struct module:"
- " %p\n", sub_api->name, sub_api->owner);
+ pr_debug("TCM: Registered subsystem plugin: %s struct module: %p\n",
+ ops->name, ops->owner);
return 0;
}
-EXPORT_SYMBOL(transport_subsystem_register);
+EXPORT_SYMBOL(transport_backend_register);
-void transport_subsystem_release(struct se_subsystem_api *sub_api)
+void target_backend_unregister(const struct target_backend_ops *ops)
{
- mutex_lock(&subsystem_mutex);
- list_del(&sub_api->sub_api_list);
- mutex_unlock(&subsystem_mutex);
+ struct target_backend *tb;
+
+ mutex_lock(&backend_mutex);
+ list_for_each_entry(tb, &backend_list, list) {
+ if (tb->ops == ops) {
+ list_del(&tb->list);
+ kfree(tb);
+ break;
+ }
+ }
+ mutex_unlock(&backend_mutex);
}
-EXPORT_SYMBOL(transport_subsystem_release);
+EXPORT_SYMBOL(target_backend_unregister);
-static struct se_subsystem_api *core_get_backend(const char *sub_name)
+static struct target_backend *core_get_backend(const char *name)
{
- struct se_subsystem_api *s;
+ struct target_backend *tb;
- mutex_lock(&subsystem_mutex);
- list_for_each_entry(s, &subsystem_list, sub_api_list) {
- if (!strcmp(s->name, sub_name))
+ mutex_lock(&backend_mutex);
+ list_for_each_entry(tb, &backend_list, list) {
+ if (!strcmp(tb->ops->name, name))
goto found;
}
- mutex_unlock(&subsystem_mutex);
+ mutex_unlock(&backend_mutex);
return NULL;
found:
- if (s->owner && !try_module_get(s->owner))
- s = NULL;
- mutex_unlock(&subsystem_mutex);
- return s;
+ if (tb->ops->owner && !try_module_get(tb->ops->owner))
+ tb = NULL;
+ mutex_unlock(&backend_mutex);
+ return tb;
}
struct se_hba *
@@ -117,13 +128,13 @@
hba->hba_index = scsi_get_new_index(SCSI_INST_INDEX);
hba->hba_flags |= hba_flags;
- hba->transport = core_get_backend(plugin_name);
- if (!hba->transport) {
+ hba->backend = core_get_backend(plugin_name);
+ if (!hba->backend) {
ret = -EINVAL;
goto out_free_hba;
}
- ret = hba->transport->attach_hba(hba, plugin_dep_id);
+ ret = hba->backend->ops->attach_hba(hba, plugin_dep_id);
if (ret < 0)
goto out_module_put;
@@ -138,8 +149,8 @@
return hba;
out_module_put:
- module_put(hba->transport->owner);
- hba->transport = NULL;
+ module_put(hba->backend->ops->owner);
+ hba->backend = NULL;
out_free_hba:
kfree(hba);
return ERR_PTR(ret);
@@ -150,7 +161,7 @@
{
WARN_ON(hba->dev_count);
- hba->transport->detach_hba(hba);
+ hba->backend->ops->detach_hba(hba);
spin_lock(&hba_lock);
list_del(&hba->hba_node);
@@ -159,9 +170,9 @@
pr_debug("CORE_HBA[%d] - Detached HBA from Generic Target"
" Core\n", hba->hba_id);
- module_put(hba->transport->owner);
+ module_put(hba->backend->ops->owner);
- hba->transport = NULL;
+ hba->backend = NULL;
kfree(hba);
return 0;
}
diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c
index 972ed17..6d88d24 100644
--- a/drivers/target/target_core_iblock.c
+++ b/drivers/target/target_core_iblock.c
@@ -40,7 +40,6 @@
#include <target/target_core_base.h>
#include <target/target_core_backend.h>
-#include <target/target_core_backend_configfs.h>
#include "target_core_iblock.h"
@@ -53,17 +52,11 @@
}
-static struct se_subsystem_api iblock_template;
-
-/* iblock_attach_hba(): (Part of se_subsystem_api_t template)
- *
- *
- */
static int iblock_attach_hba(struct se_hba *hba, u32 host_id)
{
pr_debug("CORE_HBA[%d] - TCM iBlock HBA Driver %s on"
" Generic Target Core Stack %s\n", hba->hba_id,
- IBLOCK_VERSION, TARGET_CORE_MOD_VERSION);
+ IBLOCK_VERSION, TARGET_CORE_VERSION);
return 0;
}
@@ -197,6 +190,14 @@
return ret;
}
+static void iblock_dev_call_rcu(struct rcu_head *p)
+{
+ struct se_device *dev = container_of(p, struct se_device, rcu_head);
+ struct iblock_dev *ib_dev = IBLOCK_DEV(dev);
+
+ kfree(ib_dev);
+}
+
static void iblock_free_device(struct se_device *dev)
{
struct iblock_dev *ib_dev = IBLOCK_DEV(dev);
@@ -206,7 +207,7 @@
if (ib_dev->ibd_bio_set != NULL)
bioset_free(ib_dev->ibd_bio_set);
- kfree(ib_dev);
+ call_rcu(&dev->rcu_head, iblock_dev_call_rcu);
}
static unsigned long long iblock_emulate_read_cap_with_block_size(
@@ -414,10 +415,9 @@
}
static sense_reason_t
-iblock_do_unmap(struct se_cmd *cmd, void *priv,
- sector_t lba, sector_t nolb)
+iblock_execute_unmap(struct se_cmd *cmd, sector_t lba, sector_t nolb)
{
- struct block_device *bdev = priv;
+ struct block_device *bdev = IBLOCK_DEV(cmd->se_dev)->ibd_bd;
int ret;
ret = blkdev_issue_discard(bdev, lba, nolb, GFP_KERNEL, 0);
@@ -430,30 +430,6 @@
}
static sense_reason_t
-iblock_execute_unmap(struct se_cmd *cmd)
-{
- struct block_device *bdev = IBLOCK_DEV(cmd->se_dev)->ibd_bd;
-
- return sbc_execute_unmap(cmd, iblock_do_unmap, bdev);
-}
-
-static sense_reason_t
-iblock_execute_write_same_unmap(struct se_cmd *cmd)
-{
- struct block_device *bdev = IBLOCK_DEV(cmd->se_dev)->ibd_bd;
- sector_t lba = cmd->t_task_lba;
- sector_t nolb = sbc_get_write_same_sectors(cmd);
- sense_reason_t ret;
-
- ret = iblock_do_unmap(cmd, bdev, lba, nolb);
- if (ret)
- return ret;
-
- target_complete_cmd(cmd, GOOD);
- return 0;
-}
-
-static sense_reason_t
iblock_execute_write_same(struct se_cmd *cmd)
{
struct iblock_req *ibr;
@@ -844,7 +820,6 @@
.execute_rw = iblock_execute_rw,
.execute_sync_cache = iblock_execute_sync_cache,
.execute_write_same = iblock_execute_write_same,
- .execute_write_same_unmap = iblock_execute_write_same_unmap,
.execute_unmap = iblock_execute_unmap,
};
@@ -863,42 +838,7 @@
return q->flush_flags & REQ_FLUSH;
}
-DEF_TB_DEFAULT_ATTRIBS(iblock);
-
-static struct configfs_attribute *iblock_backend_dev_attrs[] = {
- &iblock_dev_attrib_emulate_model_alias.attr,
- &iblock_dev_attrib_emulate_dpo.attr,
- &iblock_dev_attrib_emulate_fua_write.attr,
- &iblock_dev_attrib_emulate_fua_read.attr,
- &iblock_dev_attrib_emulate_write_cache.attr,
- &iblock_dev_attrib_emulate_ua_intlck_ctrl.attr,
- &iblock_dev_attrib_emulate_tas.attr,
- &iblock_dev_attrib_emulate_tpu.attr,
- &iblock_dev_attrib_emulate_tpws.attr,
- &iblock_dev_attrib_emulate_caw.attr,
- &iblock_dev_attrib_emulate_3pc.attr,
- &iblock_dev_attrib_pi_prot_type.attr,
- &iblock_dev_attrib_hw_pi_prot_type.attr,
- &iblock_dev_attrib_pi_prot_format.attr,
- &iblock_dev_attrib_enforce_pr_isids.attr,
- &iblock_dev_attrib_is_nonrot.attr,
- &iblock_dev_attrib_emulate_rest_reord.attr,
- &iblock_dev_attrib_force_pr_aptpl.attr,
- &iblock_dev_attrib_hw_block_size.attr,
- &iblock_dev_attrib_block_size.attr,
- &iblock_dev_attrib_hw_max_sectors.attr,
- &iblock_dev_attrib_optimal_sectors.attr,
- &iblock_dev_attrib_hw_queue_depth.attr,
- &iblock_dev_attrib_queue_depth.attr,
- &iblock_dev_attrib_max_unmap_lba_count.attr,
- &iblock_dev_attrib_max_unmap_block_desc_count.attr,
- &iblock_dev_attrib_unmap_granularity.attr,
- &iblock_dev_attrib_unmap_granularity_alignment.attr,
- &iblock_dev_attrib_max_write_same_len.attr,
- NULL,
-};
-
-static struct se_subsystem_api iblock_template = {
+static const struct target_backend_ops iblock_ops = {
.name = "iblock",
.inquiry_prod = "IBLOCK",
.inquiry_rev = IBLOCK_VERSION,
@@ -918,21 +858,17 @@
.get_io_min = iblock_get_io_min,
.get_io_opt = iblock_get_io_opt,
.get_write_cache = iblock_get_write_cache,
+ .tb_dev_attrib_attrs = sbc_attrib_attrs,
};
static int __init iblock_module_init(void)
{
- struct target_backend_cits *tbc = &iblock_template.tb_cits;
-
- target_core_setup_sub_cits(&iblock_template);
- tbc->tb_dev_attrib_cit.ct_attrs = iblock_backend_dev_attrs;
-
- return transport_subsystem_register(&iblock_template);
+ return transport_backend_register(&iblock_ops);
}
static void __exit iblock_module_exit(void)
{
- transport_subsystem_release(&iblock_template);
+ target_backend_unregister(&iblock_ops);
}
MODULE_DESCRIPTION("TCM IBLOCK subsystem plugin");
diff --git a/drivers/target/target_core_internal.h b/drivers/target/target_core_internal.h
index 68bd7f5..99c24ac 100644
--- a/drivers/target/target_core_internal.h
+++ b/drivers/target/target_core_internal.h
@@ -1,6 +1,53 @@
#ifndef TARGET_CORE_INTERNAL_H
#define TARGET_CORE_INTERNAL_H
+#define TARGET_CORE_NAME_MAX_LEN 64
+#define TARGET_FABRIC_NAME_SIZE 32
+
+struct target_backend {
+ struct list_head list;
+
+ const struct target_backend_ops *ops;
+
+ struct config_item_type tb_dev_cit;
+ struct config_item_type tb_dev_attrib_cit;
+ struct config_item_type tb_dev_pr_cit;
+ struct config_item_type tb_dev_wwn_cit;
+ struct config_item_type tb_dev_alua_tg_pt_gps_cit;
+ struct config_item_type tb_dev_stat_cit;
+};
+
+struct target_fabric_configfs {
+ atomic_t tf_access_cnt;
+ struct list_head tf_list;
+ struct config_group tf_group;
+ struct config_group tf_disc_group;
+ struct config_group *tf_default_groups[2];
+ const struct target_core_fabric_ops *tf_ops;
+
+ struct config_item_type tf_discovery_cit;
+ struct config_item_type tf_wwn_cit;
+ struct config_item_type tf_wwn_fabric_stats_cit;
+ struct config_item_type tf_tpg_cit;
+ struct config_item_type tf_tpg_base_cit;
+ struct config_item_type tf_tpg_lun_cit;
+ struct config_item_type tf_tpg_port_cit;
+ struct config_item_type tf_tpg_port_stat_cit;
+ struct config_item_type tf_tpg_np_cit;
+ struct config_item_type tf_tpg_np_base_cit;
+ struct config_item_type tf_tpg_attrib_cit;
+ struct config_item_type tf_tpg_auth_cit;
+ struct config_item_type tf_tpg_param_cit;
+ struct config_item_type tf_tpg_nacl_cit;
+ struct config_item_type tf_tpg_nacl_base_cit;
+ struct config_item_type tf_tpg_nacl_attrib_cit;
+ struct config_item_type tf_tpg_nacl_auth_cit;
+ struct config_item_type tf_tpg_nacl_param_cit;
+ struct config_item_type tf_tpg_nacl_stat_cit;
+ struct config_item_type tf_tpg_mappedlun_cit;
+ struct config_item_type tf_tpg_mappedlun_stat_cit;
+};
+
/* target_core_alua.c */
extern struct t10_alua_lu_gp *default_lu_gp;
@@ -8,28 +55,27 @@
extern struct mutex g_device_mutex;
extern struct list_head g_device_list;
+int core_alloc_rtpi(struct se_lun *lun, struct se_device *dev);
struct se_dev_entry *core_get_se_deve_from_rtpi(struct se_node_acl *, u16);
-int core_free_device_list_for_node(struct se_node_acl *,
+void target_pr_kref_release(struct kref *);
+void core_free_device_list_for_node(struct se_node_acl *,
struct se_portal_group *);
-void core_update_device_list_access(u32, u32, struct se_node_acl *);
+void core_update_device_list_access(u64, u32, struct se_node_acl *);
+struct se_dev_entry *target_nacl_find_deve(struct se_node_acl *, u64);
int core_enable_device_list_for_node(struct se_lun *, struct se_lun_acl *,
- u32, u32, struct se_node_acl *, struct se_portal_group *);
-int core_disable_device_list_for_node(struct se_lun *, struct se_lun_acl *,
- u32, u32, struct se_node_acl *, struct se_portal_group *);
+ u64, u32, struct se_node_acl *, struct se_portal_group *);
+void core_disable_device_list_for_node(struct se_lun *, struct se_dev_entry *,
+ struct se_node_acl *, struct se_portal_group *);
void core_clear_lun_from_tpg(struct se_lun *, struct se_portal_group *);
-int core_dev_export(struct se_device *, struct se_portal_group *,
- struct se_lun *);
-void core_dev_unexport(struct se_device *, struct se_portal_group *,
- struct se_lun *);
-struct se_lun *core_dev_add_lun(struct se_portal_group *, struct se_device *, u32);
+int core_dev_add_lun(struct se_portal_group *, struct se_device *,
+ struct se_lun *lun);
void core_dev_del_lun(struct se_portal_group *, struct se_lun *);
-struct se_lun *core_get_lun_from_tpg(struct se_portal_group *, u32);
struct se_lun_acl *core_dev_init_initiator_node_lun_acl(struct se_portal_group *,
- struct se_node_acl *, u32, int *);
+ struct se_node_acl *, u64, int *);
int core_dev_add_initiator_node_lun_acl(struct se_portal_group *,
- struct se_lun_acl *, u32, u32);
-int core_dev_del_initiator_node_lun_acl(struct se_portal_group *,
- struct se_lun *, struct se_lun_acl *);
+ struct se_lun_acl *, struct se_lun *lun, u32);
+int core_dev_del_initiator_node_lun_acl(struct se_lun *,
+ struct se_lun_acl *);
void core_dev_free_initiator_node_lun_acl(struct se_portal_group *,
struct se_lun_acl *lacl);
int core_dev_setup_virtual_lun0(void);
@@ -38,6 +84,18 @@
int target_configure_device(struct se_device *dev);
void target_free_device(struct se_device *);
+/* target_core_configfs.c */
+void target_setup_backend_cits(struct target_backend *);
+
+/* target_core_fabric_lib.c */
+int target_get_pr_transport_id_len(struct se_node_acl *nacl,
+ struct t10_pr_registration *pr_reg, int *format_code);
+int target_get_pr_transport_id(struct se_node_acl *nacl,
+ struct t10_pr_registration *pr_reg, int *format_code,
+ unsigned char *buf);
+const char *target_parse_pr_out_transport_id(struct se_portal_group *tpg,
+ const char *buf, u32 *out_tid_len, char **port_nexus_ptr);
+
/* target_core_hba.c */
struct se_hba *core_alloc_hba(const char *, u32, u32);
int core_delete_hba(struct se_hba *);
@@ -53,12 +111,16 @@
struct se_node_acl *__core_tpg_get_initiator_node_acl(struct se_portal_group *tpg,
const char *);
-void core_tpg_add_node_to_devs(struct se_node_acl *, struct se_portal_group *);
+void core_tpg_add_node_to_devs(struct se_node_acl *, struct se_portal_group *,
+ struct se_lun *);
void core_tpg_wait_for_nacl_pr_ref(struct se_node_acl *);
-struct se_lun *core_tpg_alloc_lun(struct se_portal_group *, u32);
+struct se_lun *core_tpg_alloc_lun(struct se_portal_group *, u64);
int core_tpg_add_lun(struct se_portal_group *, struct se_lun *,
u32, struct se_device *);
void core_tpg_remove_lun(struct se_portal_group *, struct se_lun *);
+struct se_node_acl *core_tpg_add_initiator_node_acl(struct se_portal_group *tpg,
+ const char *initiatorname);
+void core_tpg_del_initiator_node_acl(struct se_node_acl *acl);
/* target_core_transport.c */
extern struct kmem_cache *se_tmr_req_cache;
@@ -77,14 +139,19 @@
int transport_dump_vpd_ident_type(struct t10_vpd *, unsigned char *, int);
int transport_dump_vpd_ident(struct t10_vpd *, unsigned char *, int);
bool target_stop_cmd(struct se_cmd *cmd, unsigned long *flags);
-int transport_clear_lun_ref(struct se_lun *);
+void transport_clear_lun_ref(struct se_lun *);
void transport_send_task_abort(struct se_cmd *);
sense_reason_t target_cmd_size_check(struct se_cmd *cmd, unsigned int size);
void target_qf_do_work(struct work_struct *work);
+bool target_check_wce(struct se_device *dev);
+bool target_check_fua(struct se_device *dev);
/* target_core_stat.c */
void target_stat_setup_dev_default_groups(struct se_device *);
void target_stat_setup_port_default_groups(struct se_lun *);
void target_stat_setup_mappedlun_default_groups(struct se_lun_acl *);
+/* target_core_xcopy.c */
+extern struct se_portal_group xcopy_pt_tpg;
+
#endif /* TARGET_CORE_INTERNAL_H */
diff --git a/drivers/target/target_core_pr.c b/drivers/target/target_core_pr.c
index 8e5fa29..0fdbe43 100644
--- a/drivers/target/target_core_pr.c
+++ b/drivers/target/target_core_pr.c
@@ -35,7 +35,6 @@
#include <target/target_core_base.h>
#include <target/target_core_backend.h>
#include <target/target_core_fabric.h>
-#include <target/target_core_configfs.h>
#include "target_core_internal.h"
#include "target_core_pr.h"
@@ -45,7 +44,6 @@
* Used for Specify Initiator Ports Capable Bit (SPEC_I_PT)
*/
struct pr_transport_id_holder {
- int dest_local_nexus;
struct t10_pr_registration *dest_pr_reg;
struct se_portal_group *dest_tpg;
struct se_node_acl *dest_node_acl;
@@ -231,9 +229,10 @@
dev->dev_reservation_flags &= ~DRF_SPC2_RESERVATIONS_WITH_ISID;
}
tpg = sess->se_tpg;
- pr_debug("SCSI-2 Released reservation for %s LUN: %u ->"
- " MAPPED LUN: %u for %s\n", tpg->se_tpg_tfo->get_fabric_name(),
- cmd->se_lun->unpacked_lun, cmd->se_deve->mapped_lun,
+ pr_debug("SCSI-2 Released reservation for %s LUN: %llu ->"
+ " MAPPED LUN: %llu for %s\n",
+ tpg->se_tpg_tfo->get_fabric_name(),
+ cmd->se_lun->unpacked_lun, cmd->orig_fe_lun,
sess->se_node_acl->initiatorname);
out_unlock:
@@ -277,12 +276,12 @@
(dev->dev_reserved_node_acl != sess->se_node_acl)) {
pr_err("SCSI-2 RESERVATION CONFLIFT for %s fabric\n",
tpg->se_tpg_tfo->get_fabric_name());
- pr_err("Original reserver LUN: %u %s\n",
+ pr_err("Original reserver LUN: %llu %s\n",
cmd->se_lun->unpacked_lun,
dev->dev_reserved_node_acl->initiatorname);
- pr_err("Current attempt - LUN: %u -> MAPPED LUN: %u"
+ pr_err("Current attempt - LUN: %llu -> MAPPED LUN: %llu"
" from %s \n", cmd->se_lun->unpacked_lun,
- cmd->se_deve->mapped_lun,
+ cmd->orig_fe_lun,
sess->se_node_acl->initiatorname);
ret = TCM_RESERVATION_CONFLICT;
goto out_unlock;
@@ -294,9 +293,9 @@
dev->dev_res_bin_isid = sess->sess_bin_isid;
dev->dev_reservation_flags |= DRF_SPC2_RESERVATIONS_WITH_ISID;
}
- pr_debug("SCSI-2 Reserved %s LUN: %u -> MAPPED LUN: %u"
+ pr_debug("SCSI-2 Reserved %s LUN: %llu -> MAPPED LUN: %llu"
" for %s\n", tpg->se_tpg_tfo->get_fabric_name(),
- cmd->se_lun->unpacked_lun, cmd->se_deve->mapped_lun,
+ cmd->se_lun->unpacked_lun, cmd->orig_fe_lun,
sess->se_node_acl->initiatorname);
out_unlock:
@@ -314,28 +313,31 @@
* This function is called by those initiator ports who are *NOT*
* the active PR reservation holder when a reservation is present.
*/
-static int core_scsi3_pr_seq_non_holder(
- struct se_cmd *cmd,
- u32 pr_reg_type)
+static int core_scsi3_pr_seq_non_holder(struct se_cmd *cmd, u32 pr_reg_type,
+ bool isid_mismatch)
{
unsigned char *cdb = cmd->t_task_cdb;
- struct se_dev_entry *se_deve;
struct se_session *se_sess = cmd->se_sess;
- int other_cdb = 0, ignore_reg;
+ struct se_node_acl *nacl = se_sess->se_node_acl;
+ int other_cdb = 0;
int registered_nexus = 0, ret = 1; /* Conflict by default */
int all_reg = 0, reg_only = 0; /* ALL_REG, REG_ONLY */
int we = 0; /* Write Exclusive */
int legacy = 0; /* Act like a legacy device and return
* RESERVATION CONFLICT on some CDBs */
- se_deve = se_sess->se_node_acl->device_list[cmd->orig_fe_lun];
- /*
- * Determine if the registration should be ignored due to
- * non-matching ISIDs in target_scsi3_pr_reservation_check().
- */
- ignore_reg = (pr_reg_type & 0x80000000);
- if (ignore_reg)
- pr_reg_type &= ~0x80000000;
+ if (isid_mismatch) {
+ registered_nexus = 0;
+ } else {
+ struct se_dev_entry *se_deve;
+
+ rcu_read_lock();
+ se_deve = target_nacl_find_deve(nacl, cmd->orig_fe_lun);
+ if (se_deve)
+ registered_nexus = test_bit(DEF_PR_REG_ACTIVE,
+ &se_deve->deve_flags);
+ rcu_read_unlock();
+ }
switch (pr_reg_type) {
case PR_TYPE_WRITE_EXCLUSIVE:
@@ -345,8 +347,6 @@
* Some commands are only allowed for the persistent reservation
* holder.
*/
- if ((se_deve->def_pr_registered) && !(ignore_reg))
- registered_nexus = 1;
break;
case PR_TYPE_WRITE_EXCLUSIVE_REGONLY:
we = 1;
@@ -355,8 +355,6 @@
* Some commands are only allowed for registered I_T Nexuses.
*/
reg_only = 1;
- if ((se_deve->def_pr_registered) && !(ignore_reg))
- registered_nexus = 1;
break;
case PR_TYPE_WRITE_EXCLUSIVE_ALLREG:
we = 1;
@@ -365,8 +363,6 @@
* Each registered I_T Nexus is a reservation holder.
*/
all_reg = 1;
- if ((se_deve->def_pr_registered) && !(ignore_reg))
- registered_nexus = 1;
break;
default:
return -EINVAL;
@@ -572,6 +568,7 @@
struct se_device *dev = cmd->se_dev;
struct se_session *sess = cmd->se_sess;
u32 pr_reg_type;
+ bool isid_mismatch = false;
if (!dev->dev_pr_res_holder)
return 0;
@@ -584,7 +581,7 @@
if (dev->dev_pr_res_holder->isid_present_at_reg) {
if (dev->dev_pr_res_holder->pr_reg_bin_isid !=
sess->sess_bin_isid) {
- pr_reg_type |= 0x80000000;
+ isid_mismatch = true;
goto check_nonholder;
}
}
@@ -592,7 +589,7 @@
return 0;
check_nonholder:
- if (core_scsi3_pr_seq_non_holder(cmd, pr_reg_type))
+ if (core_scsi3_pr_seq_non_holder(cmd, pr_reg_type, isid_mismatch))
return TCM_RESERVATION_CONFLICT;
return 0;
}
@@ -620,7 +617,9 @@
static struct t10_pr_registration *__core_scsi3_do_alloc_registration(
struct se_device *dev,
struct se_node_acl *nacl,
+ struct se_lun *lun,
struct se_dev_entry *deve,
+ u64 mapped_lun,
unsigned char *isid,
u64 sa_res_key,
int all_tg_pt,
@@ -642,12 +641,12 @@
atomic_set(&pr_reg->pr_res_holders, 0);
pr_reg->pr_reg_nacl = nacl;
pr_reg->pr_reg_deve = deve;
- pr_reg->pr_res_mapped_lun = deve->mapped_lun;
- pr_reg->pr_aptpl_target_lun = deve->se_lun->unpacked_lun;
+ pr_reg->pr_res_mapped_lun = mapped_lun;
+ pr_reg->pr_aptpl_target_lun = lun->unpacked_lun;
+ pr_reg->tg_pt_sep_rtpi = lun->lun_rtpi;
pr_reg->pr_res_key = sa_res_key;
pr_reg->pr_reg_all_tg_pt = all_tg_pt;
pr_reg->pr_reg_aptpl = aptpl;
- pr_reg->pr_reg_tg_pt_lun = deve->se_lun;
/*
* If an ISID value for this SCSI Initiator Port exists,
* save it to the registration now.
@@ -671,7 +670,9 @@
static struct t10_pr_registration *__core_scsi3_alloc_registration(
struct se_device *dev,
struct se_node_acl *nacl,
+ struct se_lun *lun,
struct se_dev_entry *deve,
+ u64 mapped_lun,
unsigned char *isid,
u64 sa_res_key,
int all_tg_pt,
@@ -679,7 +680,8 @@
{
struct se_dev_entry *deve_tmp;
struct se_node_acl *nacl_tmp;
- struct se_port *port, *port_tmp;
+ struct se_lun_acl *lacl_tmp;
+ struct se_lun *lun_tmp, *next, *dest_lun;
const struct target_core_fabric_ops *tfo = nacl->se_tpg->se_tpg_tfo;
struct t10_pr_registration *pr_reg, *pr_reg_atp, *pr_reg_tmp, *pr_reg_tmp_safe;
int ret;
@@ -687,8 +689,9 @@
* Create a registration for the I_T Nexus upon which the
* PROUT REGISTER was received.
*/
- pr_reg = __core_scsi3_do_alloc_registration(dev, nacl, deve, isid,
- sa_res_key, all_tg_pt, aptpl);
+ pr_reg = __core_scsi3_do_alloc_registration(dev, nacl, lun, deve, mapped_lun,
+ isid, sa_res_key, all_tg_pt,
+ aptpl);
if (!pr_reg)
return NULL;
/*
@@ -701,13 +704,13 @@
* for ALL_TG_PT=1
*/
spin_lock(&dev->se_port_lock);
- list_for_each_entry_safe(port, port_tmp, &dev->dev_sep_list, sep_list) {
- atomic_inc_mb(&port->sep_tg_pt_ref_cnt);
+ list_for_each_entry_safe(lun_tmp, next, &dev->dev_sep_list, lun_dev_link) {
+ if (!percpu_ref_tryget_live(&lun_tmp->lun_ref))
+ continue;
spin_unlock(&dev->se_port_lock);
- spin_lock_bh(&port->sep_alua_lock);
- list_for_each_entry(deve_tmp, &port->sep_alua_list,
- alua_port_list) {
+ spin_lock(&lun_tmp->lun_deve_lock);
+ list_for_each_entry(deve_tmp, &lun_tmp->lun_deve_list, lun_link) {
/*
* This pointer will be NULL for demo mode MappedLUNs
* that have not been make explicit via a ConfigFS
@@ -716,7 +719,9 @@
if (!deve_tmp->se_lun_acl)
continue;
- nacl_tmp = deve_tmp->se_lun_acl->se_lun_nacl;
+ lacl_tmp = rcu_dereference_check(deve_tmp->se_lun_acl,
+ lockdep_is_held(&lun_tmp->lun_deve_lock));
+ nacl_tmp = lacl_tmp->se_lun_nacl;
/*
* Skip the matching struct se_node_acl that is allocated
* above..
@@ -736,8 +741,8 @@
if (strcmp(nacl->initiatorname, nacl_tmp->initiatorname))
continue;
- atomic_inc_mb(&deve_tmp->pr_ref_count);
- spin_unlock_bh(&port->sep_alua_lock);
+ kref_get(&deve_tmp->pr_kref);
+ spin_unlock(&lun_tmp->lun_deve_lock);
/*
* Grab a configfs group dependency that is released
* for the exception path at label out: below, or upon
@@ -748,8 +753,8 @@
if (ret < 0) {
pr_err("core_scsi3_lunacl_depend"
"_item() failed\n");
- atomic_dec_mb(&port->sep_tg_pt_ref_cnt);
- atomic_dec_mb(&deve_tmp->pr_ref_count);
+ percpu_ref_put(&lun_tmp->lun_ref);
+ kref_put(&deve_tmp->pr_kref, target_pr_kref_release);
goto out;
}
/*
@@ -759,24 +764,27 @@
* the original *pr_reg is processed in
* __core_scsi3_add_registration()
*/
+ dest_lun = rcu_dereference_check(deve_tmp->se_lun,
+ atomic_read(&deve_tmp->pr_kref.refcount) != 0);
+
pr_reg_atp = __core_scsi3_do_alloc_registration(dev,
- nacl_tmp, deve_tmp, NULL,
+ nacl_tmp, dest_lun, deve_tmp,
+ deve_tmp->mapped_lun, NULL,
sa_res_key, all_tg_pt, aptpl);
if (!pr_reg_atp) {
- atomic_dec_mb(&port->sep_tg_pt_ref_cnt);
- atomic_dec_mb(&deve_tmp->pr_ref_count);
+ percpu_ref_put(&lun_tmp->lun_ref);
core_scsi3_lunacl_undepend_item(deve_tmp);
goto out;
}
list_add_tail(&pr_reg_atp->pr_reg_atp_mem_list,
&pr_reg->pr_reg_atp_list);
- spin_lock_bh(&port->sep_alua_lock);
+ spin_lock(&lun_tmp->lun_deve_lock);
}
- spin_unlock_bh(&port->sep_alua_lock);
+ spin_unlock(&lun_tmp->lun_deve_lock);
spin_lock(&dev->se_port_lock);
- atomic_dec_mb(&port->sep_tg_pt_ref_cnt);
+ percpu_ref_put(&lun_tmp->lun_ref);
}
spin_unlock(&dev->se_port_lock);
@@ -797,10 +805,10 @@
u64 sa_res_key,
unsigned char *i_port,
unsigned char *isid,
- u32 mapped_lun,
+ u64 mapped_lun,
unsigned char *t_port,
u16 tpgt,
- u32 target_lun,
+ u64 target_lun,
int res_holder,
int all_tg_pt,
u8 type)
@@ -831,7 +839,6 @@
pr_reg->pr_res_key = sa_res_key;
pr_reg->pr_reg_all_tg_pt = all_tg_pt;
pr_reg->pr_reg_aptpl = 1;
- pr_reg->pr_reg_tg_pt_lun = NULL;
pr_reg->pr_res_scope = 0; /* Always LUN_SCOPE */
pr_reg->pr_res_type = type;
/*
@@ -895,9 +902,9 @@
struct se_device *dev,
struct se_portal_group *tpg,
struct se_lun *lun,
- u32 target_lun,
+ u64 target_lun,
struct se_node_acl *nacl,
- struct se_dev_entry *deve)
+ u64 mapped_lun)
{
struct t10_pr_registration *pr_reg, *pr_reg_tmp;
struct t10_reservation *pr_tmpl = &dev->t10_pr;
@@ -925,14 +932,13 @@
pr_reg_aptpl_list) {
if (!strcmp(pr_reg->pr_iport, i_port) &&
- (pr_reg->pr_res_mapped_lun == deve->mapped_lun) &&
+ (pr_reg->pr_res_mapped_lun == mapped_lun) &&
!(strcmp(pr_reg->pr_tport, t_port)) &&
(pr_reg->pr_reg_tpgt == tpgt) &&
(pr_reg->pr_aptpl_target_lun == target_lun)) {
pr_reg->pr_reg_nacl = nacl;
- pr_reg->pr_reg_deve = deve;
- pr_reg->pr_reg_tg_pt_lun = lun;
+ pr_reg->tg_pt_sep_rtpi = lun->lun_rtpi;
list_del(&pr_reg->pr_reg_aptpl_list);
spin_unlock(&pr_tmpl->aptpl_reg_lock);
@@ -967,15 +973,14 @@
struct se_portal_group *tpg,
struct se_lun *lun,
struct se_node_acl *nacl,
- u32 mapped_lun)
+ u64 mapped_lun)
{
- struct se_dev_entry *deve = nacl->device_list[mapped_lun];
-
if (dev->dev_reservation_flags & DRF_SPC2_RESERVATIONS)
return 0;
return __core_scsi3_check_aptpl_registration(dev, tpg, lun,
- lun->unpacked_lun, nacl, deve);
+ lun->unpacked_lun, nacl,
+ mapped_lun);
}
static void __core_scsi3_dump_registration(
@@ -1009,10 +1014,6 @@
pr_reg->pr_reg_aptpl);
}
-/*
- * this function can be called with struct se_device->dev_reservation_lock
- * when register_move = 1
- */
static void __core_scsi3_add_registration(
struct se_device *dev,
struct se_node_acl *nacl,
@@ -1023,6 +1024,7 @@
const struct target_core_fabric_ops *tfo = nacl->se_tpg->se_tpg_tfo;
struct t10_pr_registration *pr_reg_tmp, *pr_reg_tmp_safe;
struct t10_reservation *pr_tmpl = &dev->t10_pr;
+ struct se_dev_entry *deve;
/*
* Increment PRgeneration counter for struct se_device upon a successful
@@ -1039,10 +1041,16 @@
spin_lock(&pr_tmpl->registration_lock);
list_add_tail(&pr_reg->pr_reg_list, &pr_tmpl->registration_list);
- pr_reg->pr_reg_deve->def_pr_registered = 1;
__core_scsi3_dump_registration(tfo, dev, nacl, pr_reg, register_type);
spin_unlock(&pr_tmpl->registration_lock);
+
+ rcu_read_lock();
+ deve = pr_reg->pr_reg_deve;
+ if (deve)
+ set_bit(DEF_PR_REG_ACTIVE, &deve->deve_flags);
+ rcu_read_unlock();
+
/*
* Skip extra processing for ALL_TG_PT=0 or REGISTER_AND_MOVE.
*/
@@ -1054,6 +1062,8 @@
*/
list_for_each_entry_safe(pr_reg_tmp, pr_reg_tmp_safe,
&pr_reg->pr_reg_atp_list, pr_reg_atp_mem_list) {
+ struct se_node_acl *nacl_tmp = pr_reg_tmp->pr_reg_nacl;
+
list_del(&pr_reg_tmp->pr_reg_atp_mem_list);
pr_reg_tmp->pr_res_generation = core_scsi3_pr_generation(dev);
@@ -1061,12 +1071,17 @@
spin_lock(&pr_tmpl->registration_lock);
list_add_tail(&pr_reg_tmp->pr_reg_list,
&pr_tmpl->registration_list);
- pr_reg_tmp->pr_reg_deve->def_pr_registered = 1;
- __core_scsi3_dump_registration(tfo, dev,
- pr_reg_tmp->pr_reg_nacl, pr_reg_tmp,
- register_type);
+ __core_scsi3_dump_registration(tfo, dev, nacl_tmp, pr_reg_tmp,
+ register_type);
spin_unlock(&pr_tmpl->registration_lock);
+
+ rcu_read_lock();
+ deve = pr_reg_tmp->pr_reg_deve;
+ if (deve)
+ set_bit(DEF_PR_REG_ACTIVE, &deve->deve_flags);
+ rcu_read_unlock();
+
/*
* Drop configfs group dependency reference from
* __core_scsi3_alloc_registration()
@@ -1078,7 +1093,9 @@
static int core_scsi3_alloc_registration(
struct se_device *dev,
struct se_node_acl *nacl,
+ struct se_lun *lun,
struct se_dev_entry *deve,
+ u64 mapped_lun,
unsigned char *isid,
u64 sa_res_key,
int all_tg_pt,
@@ -1088,8 +1105,9 @@
{
struct t10_pr_registration *pr_reg;
- pr_reg = __core_scsi3_alloc_registration(dev, nacl, deve, isid,
- sa_res_key, all_tg_pt, aptpl);
+ pr_reg = __core_scsi3_alloc_registration(dev, nacl, lun, deve, mapped_lun,
+ isid, sa_res_key, all_tg_pt,
+ aptpl);
if (!pr_reg)
return -EPERM;
@@ -1242,13 +1260,13 @@
const struct target_core_fabric_ops *tfo =
pr_reg->pr_reg_nacl->se_tpg->se_tpg_tfo;
struct t10_reservation *pr_tmpl = &dev->t10_pr;
+ struct se_node_acl *nacl = pr_reg->pr_reg_nacl;
+ struct se_dev_entry *deve;
char i_buf[PR_REG_ISID_ID_LEN];
memset(i_buf, 0, PR_REG_ISID_ID_LEN);
core_pr_dump_initiator_port(pr_reg, i_buf, PR_REG_ISID_ID_LEN);
- pr_reg->pr_reg_deve->def_pr_registered = 0;
- pr_reg->pr_reg_deve->pr_res_key = 0;
if (!list_empty(&pr_reg->pr_reg_list))
list_del(&pr_reg->pr_reg_list);
/*
@@ -1257,6 +1275,8 @@
*/
if (dec_holders)
core_scsi3_put_pr_reg(pr_reg);
+
+ spin_unlock(&pr_tmpl->registration_lock);
/*
* Wait until all reference from any other I_T nexuses for this
* *pr_reg have been released. Because list_del() is called above,
@@ -1264,13 +1284,18 @@
* count back to zero, and we release *pr_reg.
*/
while (atomic_read(&pr_reg->pr_res_holders) != 0) {
- spin_unlock(&pr_tmpl->registration_lock);
pr_debug("SPC-3 PR [%s] waiting for pr_res_holders\n",
tfo->get_fabric_name());
cpu_relax();
- spin_lock(&pr_tmpl->registration_lock);
}
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, pr_reg->pr_res_mapped_lun);
+ if (deve)
+ clear_bit(DEF_PR_REG_ACTIVE, &deve->deve_flags);
+ rcu_read_unlock();
+
+ spin_lock(&pr_tmpl->registration_lock);
pr_debug("SPC-3 PR [%s] Service Action: UNREGISTER Initiator"
" Node: %s%s\n", tfo->get_fabric_name(),
pr_reg->pr_reg_nacl->initiatorname,
@@ -1392,12 +1417,14 @@
static int core_scsi3_lunacl_depend_item(struct se_dev_entry *se_deve)
{
- struct se_lun_acl *lun_acl = se_deve->se_lun_acl;
+ struct se_lun_acl *lun_acl;
struct se_node_acl *nacl;
struct se_portal_group *tpg;
/*
* For nacl->dynamic_node_acl=1
*/
+ lun_acl = rcu_dereference_check(se_deve->se_lun_acl,
+ atomic_read(&se_deve->pr_kref.refcount) != 0);
if (!lun_acl)
return 0;
@@ -1409,21 +1436,23 @@
static void core_scsi3_lunacl_undepend_item(struct se_dev_entry *se_deve)
{
- struct se_lun_acl *lun_acl = se_deve->se_lun_acl;
+ struct se_lun_acl *lun_acl;
struct se_node_acl *nacl;
struct se_portal_group *tpg;
/*
* For nacl->dynamic_node_acl=1
*/
+ lun_acl = rcu_dereference_check(se_deve->se_lun_acl,
+ atomic_read(&se_deve->pr_kref.refcount) != 0);
if (!lun_acl) {
- atomic_dec_mb(&se_deve->pr_ref_count);
+ kref_put(&se_deve->pr_kref, target_pr_kref_release);
return;
}
nacl = lun_acl->se_lun_nacl;
tpg = nacl->se_tpg;
target_undepend_item(&lun_acl->se_lun_group.cg_item);
- atomic_dec_mb(&se_deve->pr_ref_count);
+ kref_put(&se_deve->pr_kref, target_pr_kref_release);
}
static sense_reason_t
@@ -1436,30 +1465,25 @@
int aptpl)
{
struct se_device *dev = cmd->se_dev;
- struct se_port *tmp_port;
struct se_portal_group *dest_tpg = NULL, *tmp_tpg;
struct se_session *se_sess = cmd->se_sess;
struct se_node_acl *dest_node_acl = NULL;
- struct se_dev_entry *dest_se_deve = NULL, *local_se_deve;
+ struct se_dev_entry *dest_se_deve = NULL;
struct t10_pr_registration *dest_pr_reg, *local_pr_reg, *pr_reg_e;
struct t10_pr_registration *pr_reg_tmp, *pr_reg_tmp_safe;
LIST_HEAD(tid_dest_list);
struct pr_transport_id_holder *tidh_new, *tidh, *tidh_tmp;
- const struct target_core_fabric_ops *tmp_tf_ops;
- unsigned char *buf;
- unsigned char *ptr, *i_str = NULL, proto_ident, tmp_proto_ident;
+ unsigned char *buf, *ptr, proto_ident;
+ const unsigned char *i_str;
char *iport_ptr = NULL, i_buf[PR_REG_ISID_ID_LEN];
sense_reason_t ret;
u32 tpdl, tid_len = 0;
- int dest_local_nexus;
u32 dest_rtpi = 0;
- local_se_deve = se_sess->se_node_acl->device_list[cmd->orig_fe_lun];
/*
* Allocate a struct pr_transport_id_holder and setup the
- * local_node_acl and local_se_deve pointers and add to
- * struct list_head tid_dest_list for add registration
- * processing in the loop of tid_dest_list below.
+ * local_node_acl pointer and add to struct list_head tid_dest_list
+ * for add registration processing in the loop of tid_dest_list below.
*/
tidh_new = kzalloc(sizeof(struct pr_transport_id_holder), GFP_KERNEL);
if (!tidh_new) {
@@ -1469,10 +1493,10 @@
INIT_LIST_HEAD(&tidh_new->dest_list);
tidh_new->dest_tpg = tpg;
tidh_new->dest_node_acl = se_sess->se_node_acl;
- tidh_new->dest_se_deve = local_se_deve;
local_pr_reg = __core_scsi3_alloc_registration(cmd->se_dev,
- se_sess->se_node_acl, local_se_deve, l_isid,
+ se_sess->se_node_acl, cmd->se_lun,
+ NULL, cmd->orig_fe_lun, l_isid,
sa_res_key, all_tg_pt, aptpl);
if (!local_pr_reg) {
kfree(tidh_new);
@@ -1481,10 +1505,10 @@
tidh_new->dest_pr_reg = local_pr_reg;
/*
* The local I_T nexus does not hold any configfs dependances,
- * so we set tid_h->dest_local_nexus=1 to prevent the
+ * so we set tidh_new->dest_se_deve to NULL to prevent the
* configfs_undepend_item() calls in the tid_dest_list loops below.
*/
- tidh_new->dest_local_nexus = 1;
+ tidh_new->dest_se_deve = NULL;
list_add_tail(&tidh_new->dest_list, &tid_dest_list);
if (cmd->data_length < 28) {
@@ -1525,32 +1549,25 @@
ptr = &buf[28];
while (tpdl > 0) {
+ struct se_lun *dest_lun, *tmp_lun;
+
proto_ident = (ptr[0] & 0x0f);
dest_tpg = NULL;
spin_lock(&dev->se_port_lock);
- list_for_each_entry(tmp_port, &dev->dev_sep_list, sep_list) {
- tmp_tpg = tmp_port->sep_tpg;
- if (!tmp_tpg)
- continue;
- tmp_tf_ops = tmp_tpg->se_tpg_tfo;
- if (!tmp_tf_ops)
- continue;
- if (!tmp_tf_ops->get_fabric_proto_ident ||
- !tmp_tf_ops->tpg_parse_pr_out_transport_id)
- continue;
+ list_for_each_entry(tmp_lun, &dev->dev_sep_list, lun_dev_link) {
+ tmp_tpg = tmp_lun->lun_tpg;
+
/*
* Look for the matching proto_ident provided by
* the received TransportID
*/
- tmp_proto_ident = tmp_tf_ops->get_fabric_proto_ident(tmp_tpg);
- if (tmp_proto_ident != proto_ident)
+ if (tmp_tpg->proto_id != proto_ident)
continue;
- dest_rtpi = tmp_port->sep_rtpi;
+ dest_rtpi = tmp_lun->lun_rtpi;
- i_str = tmp_tf_ops->tpg_parse_pr_out_transport_id(
- tmp_tpg, (const char *)ptr, &tid_len,
- &iport_ptr);
+ i_str = target_parse_pr_out_transport_id(tmp_tpg,
+ (const char *)ptr, &tid_len, &iport_ptr);
if (!i_str)
continue;
@@ -1569,12 +1586,12 @@
* from the decoded fabric module specific TransportID
* at *i_str.
*/
- spin_lock_irq(&tmp_tpg->acl_node_lock);
+ mutex_lock(&tmp_tpg->acl_node_mutex);
dest_node_acl = __core_tpg_get_initiator_node_acl(
tmp_tpg, i_str);
if (dest_node_acl)
atomic_inc_mb(&dest_node_acl->acl_pr_ref_count);
- spin_unlock_irq(&tmp_tpg->acl_node_lock);
+ mutex_unlock(&tmp_tpg->acl_node_mutex);
if (!dest_node_acl) {
core_scsi3_tpg_undepend_item(tmp_tpg);
@@ -1644,7 +1661,7 @@
if (core_scsi3_lunacl_depend_item(dest_se_deve)) {
pr_err("core_scsi3_lunacl_depend_item()"
" failed\n");
- atomic_dec_mb(&dest_se_deve->pr_ref_count);
+ kref_put(&dest_se_deve->pr_kref, target_pr_kref_release);
core_scsi3_nodeacl_undepend_item(dest_node_acl);
core_scsi3_tpg_undepend_item(dest_tpg);
ret = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
@@ -1652,7 +1669,7 @@
}
pr_debug("SPC-3 PR SPEC_I_PT: Located %s Node: %s"
- " dest_se_deve mapped_lun: %u\n",
+ " dest_se_deve mapped_lun: %llu\n",
dest_tpg->se_tpg_tfo->get_fabric_name(),
dest_node_acl->initiatorname, dest_se_deve->mapped_lun);
@@ -1708,9 +1725,13 @@
* and then call __core_scsi3_add_registration() in the
* 2nd loop which will never fail.
*/
+ dest_lun = rcu_dereference_check(dest_se_deve->se_lun,
+ atomic_read(&dest_se_deve->pr_kref.refcount) != 0);
+
dest_pr_reg = __core_scsi3_alloc_registration(cmd->se_dev,
- dest_node_acl, dest_se_deve, iport_ptr,
- sa_res_key, all_tg_pt, aptpl);
+ dest_node_acl, dest_lun, dest_se_deve,
+ dest_se_deve->mapped_lun, iport_ptr,
+ sa_res_key, all_tg_pt, aptpl);
if (!dest_pr_reg) {
core_scsi3_lunacl_undepend_item(dest_se_deve);
core_scsi3_nodeacl_undepend_item(dest_node_acl);
@@ -1748,7 +1769,6 @@
dest_node_acl = tidh->dest_node_acl;
dest_se_deve = tidh->dest_se_deve;
dest_pr_reg = tidh->dest_pr_reg;
- dest_local_nexus = tidh->dest_local_nexus;
list_del(&tidh->dest_list);
kfree(tidh);
@@ -1761,10 +1781,11 @@
pr_debug("SPC-3 PR [%s] SPEC_I_PT: Successfully"
" registered Transport ID for Node: %s%s Mapped LUN:"
- " %u\n", dest_tpg->se_tpg_tfo->get_fabric_name(),
- dest_node_acl->initiatorname, i_buf, dest_se_deve->mapped_lun);
+ " %llu\n", dest_tpg->se_tpg_tfo->get_fabric_name(),
+ dest_node_acl->initiatorname, i_buf, (dest_se_deve) ?
+ dest_se_deve->mapped_lun : 0);
- if (dest_local_nexus)
+ if (!dest_se_deve)
continue;
core_scsi3_lunacl_undepend_item(dest_se_deve);
@@ -1785,7 +1806,6 @@
dest_node_acl = tidh->dest_node_acl;
dest_se_deve = tidh->dest_se_deve;
dest_pr_reg = tidh->dest_pr_reg;
- dest_local_nexus = tidh->dest_local_nexus;
list_del(&tidh->dest_list);
kfree(tidh);
@@ -1803,7 +1823,7 @@
kmem_cache_free(t10_pr_reg_cache, dest_pr_reg);
- if (dest_local_nexus)
+ if (!dest_se_deve)
continue;
core_scsi3_lunacl_undepend_item(dest_se_deve);
@@ -1818,7 +1838,6 @@
unsigned char *buf,
u32 pr_aptpl_buf_len)
{
- struct se_lun *lun;
struct se_portal_group *tpg;
struct t10_pr_registration *pr_reg;
unsigned char tmp[512], isid_buf[32];
@@ -1837,7 +1856,6 @@
tmp[0] = '\0';
isid_buf[0] = '\0';
tpg = pr_reg->pr_reg_nacl->se_tpg;
- lun = pr_reg->pr_reg_tg_pt_lun;
/*
* Write out any ISID value to APTPL metadata that was included
* in the original registration.
@@ -1856,7 +1874,7 @@
"sa_res_key=%llu\n"
"res_holder=1\nres_type=%02x\n"
"res_scope=%02x\nres_all_tg_pt=%d\n"
- "mapped_lun=%u\n", reg_count,
+ "mapped_lun=%llu\n", reg_count,
tpg->se_tpg_tfo->get_fabric_name(),
pr_reg->pr_reg_nacl->initiatorname, isid_buf,
pr_reg->pr_res_key, pr_reg->pr_res_type,
@@ -1866,7 +1884,7 @@
snprintf(tmp, 512, "PR_REG_START: %d\n"
"initiator_fabric=%s\ninitiator_node=%s\n%s"
"sa_res_key=%llu\nres_holder=0\n"
- "res_all_tg_pt=%d\nmapped_lun=%u\n",
+ "res_all_tg_pt=%d\nmapped_lun=%llu\n",
reg_count, tpg->se_tpg_tfo->get_fabric_name(),
pr_reg->pr_reg_nacl->initiatorname, isid_buf,
pr_reg->pr_res_key, pr_reg->pr_reg_all_tg_pt,
@@ -1885,11 +1903,12 @@
* Include information about the associated SCSI target port.
*/
snprintf(tmp, 512, "target_fabric=%s\ntarget_node=%s\n"
- "tpgt=%hu\nport_rtpi=%hu\ntarget_lun=%u\nPR_REG_END:"
+ "tpgt=%hu\nport_rtpi=%hu\ntarget_lun=%llu\nPR_REG_END:"
" %d\n", tpg->se_tpg_tfo->get_fabric_name(),
tpg->se_tpg_tfo->tpg_get_wwn(tpg),
tpg->se_tpg_tfo->tpg_get_tag(tpg),
- lun->lun_sep->sep_rtpi, lun->unpacked_lun, reg_count);
+ pr_reg->tg_pt_sep_rtpi, pr_reg->pr_aptpl_target_lun,
+ reg_count);
if ((len + strlen(tmp) >= pr_aptpl_buf_len)) {
pr_err("Unable to update renaming APTPL metadata,"
@@ -2000,7 +2019,6 @@
{
struct se_session *se_sess = cmd->se_sess;
struct se_device *dev = cmd->se_dev;
- struct se_dev_entry *se_deve;
struct se_lun *se_lun = cmd->se_lun;
struct se_portal_group *se_tpg;
struct t10_pr_registration *pr_reg, *pr_reg_p, *pr_reg_tmp;
@@ -2014,7 +2032,6 @@
return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
}
se_tpg = se_sess->se_tpg;
- se_deve = se_sess->se_node_acl->device_list[cmd->orig_fe_lun];
if (se_tpg->se_tpg_tfo->sess_get_initiator_sid) {
memset(&isid_buf[0], 0, PR_REG_ISID_LEN);
@@ -2045,7 +2062,8 @@
* Logical Unit of the SCSI device server.
*/
if (core_scsi3_alloc_registration(cmd->se_dev,
- se_sess->se_node_acl, se_deve, isid_ptr,
+ se_sess->se_node_acl, cmd->se_lun,
+ NULL, cmd->orig_fe_lun, isid_ptr,
sa_res_key, all_tg_pt, aptpl,
register_type, 0)) {
pr_err("Unable to allocate"
@@ -2066,7 +2084,6 @@
if (ret != 0)
return ret;
}
-
return core_scsi3_update_and_write_aptpl(dev, aptpl);
}
@@ -2180,7 +2197,7 @@
&pr_tmpl->registration_list,
pr_reg_list) {
- core_scsi3_ua_allocate(
+ target_ua_allocate_lun(
pr_reg_p->pr_reg_nacl,
pr_reg_p->pr_res_mapped_lun,
0x2A,
@@ -2607,7 +2624,7 @@
if (pr_reg_p == pr_reg)
continue;
- core_scsi3_ua_allocate(pr_reg_p->pr_reg_nacl,
+ target_ua_allocate_lun(pr_reg_p->pr_reg_nacl,
pr_reg_p->pr_res_mapped_lun,
0x2A, ASCQ_2AH_RESERVATIONS_RELEASED);
}
@@ -2630,7 +2647,7 @@
struct se_session *se_sess = cmd->se_sess;
struct t10_reservation *pr_tmpl = &dev->t10_pr;
struct t10_pr_registration *pr_reg, *pr_reg_tmp, *pr_reg_n, *pr_res_holder;
- u32 pr_res_mapped_lun = 0;
+ u64 pr_res_mapped_lun = 0;
int calling_it_nexus = 0;
/*
* Locate the existing *pr_reg via struct se_node_acl pointers
@@ -2692,7 +2709,7 @@
* additional sense code set to RESERVATIONS PREEMPTED.
*/
if (!calling_it_nexus)
- core_scsi3_ua_allocate(pr_reg_nacl, pr_res_mapped_lun,
+ target_ua_allocate_lun(pr_reg_nacl, pr_res_mapped_lun,
0x2A, ASCQ_2AH_RESERVATIONS_PREEMPTED);
}
spin_unlock(&pr_tmpl->registration_lock);
@@ -2786,7 +2803,7 @@
LIST_HEAD(preempt_and_abort_list);
struct t10_pr_registration *pr_reg, *pr_reg_tmp, *pr_reg_n, *pr_res_holder;
struct t10_reservation *pr_tmpl = &dev->t10_pr;
- u32 pr_res_mapped_lun = 0;
+ u64 pr_res_mapped_lun = 0;
int all_reg = 0, calling_it_nexus = 0;
bool sa_res_key_unmatched = sa_res_key != 0;
int prh_type = 0, prh_scope = 0;
@@ -2901,7 +2918,7 @@
NULL, 0);
}
if (!calling_it_nexus)
- core_scsi3_ua_allocate(pr_reg_nacl,
+ target_ua_allocate_lun(pr_reg_nacl,
pr_res_mapped_lun, 0x2A,
ASCQ_2AH_REGISTRATIONS_PREEMPTED);
}
@@ -3007,7 +3024,7 @@
* persistent reservation and/or registration, with the
* additional sense code set to REGISTRATIONS PREEMPTED;
*/
- core_scsi3_ua_allocate(pr_reg_nacl, pr_res_mapped_lun, 0x2A,
+ target_ua_allocate_lun(pr_reg_nacl, pr_res_mapped_lun, 0x2A,
ASCQ_2AH_REGISTRATIONS_PREEMPTED);
}
spin_unlock(&pr_tmpl->registration_lock);
@@ -3040,7 +3057,7 @@
if (calling_it_nexus)
continue;
- core_scsi3_ua_allocate(pr_reg->pr_reg_nacl,
+ target_ua_allocate_lun(pr_reg->pr_reg_nacl,
pr_reg->pr_res_mapped_lun, 0x2A,
ASCQ_2AH_RESERVATIONS_RELEASED);
}
@@ -3099,15 +3116,14 @@
struct se_session *se_sess = cmd->se_sess;
struct se_device *dev = cmd->se_dev;
struct se_dev_entry *dest_se_deve = NULL;
- struct se_lun *se_lun = cmd->se_lun;
+ struct se_lun *se_lun = cmd->se_lun, *tmp_lun;
struct se_node_acl *pr_res_nacl, *pr_reg_nacl, *dest_node_acl = NULL;
- struct se_port *se_port;
struct se_portal_group *se_tpg, *dest_se_tpg = NULL;
const struct target_core_fabric_ops *dest_tf_ops = NULL, *tf_ops;
struct t10_pr_registration *pr_reg, *pr_res_holder, *dest_pr_reg;
struct t10_reservation *pr_tmpl = &dev->t10_pr;
unsigned char *buf;
- unsigned char *initiator_str;
+ const unsigned char *initiator_str;
char *iport_ptr = NULL, i_buf[PR_REG_ISID_ID_LEN];
u32 tid_len, tmp_tid_len;
int new_reg = 0, type, scope, matching_iname;
@@ -3186,12 +3202,10 @@
}
spin_lock(&dev->se_port_lock);
- list_for_each_entry(se_port, &dev->dev_sep_list, sep_list) {
- if (se_port->sep_rtpi != rtpi)
+ list_for_each_entry(tmp_lun, &dev->dev_sep_list, lun_dev_link) {
+ if (tmp_lun->lun_rtpi != rtpi)
continue;
- dest_se_tpg = se_port->sep_tpg;
- if (!dest_se_tpg)
- continue;
+ dest_se_tpg = tmp_lun->lun_tpg;
dest_tf_ops = dest_se_tpg->se_tpg_tfo;
if (!dest_tf_ops)
continue;
@@ -3230,23 +3244,16 @@
pr_debug("SPC-3 PR REGISTER_AND_MOVE: Extracted Protocol Identifier:"
" 0x%02x\n", proto_ident);
- if (proto_ident != dest_tf_ops->get_fabric_proto_ident(dest_se_tpg)) {
+ if (proto_ident != dest_se_tpg->proto_id) {
pr_err("SPC-3 PR REGISTER_AND_MOVE: Received"
" proto_ident: 0x%02x does not match ident: 0x%02x"
" from fabric: %s\n", proto_ident,
- dest_tf_ops->get_fabric_proto_ident(dest_se_tpg),
+ dest_se_tpg->proto_id,
dest_tf_ops->get_fabric_name());
ret = TCM_INVALID_PARAMETER_LIST;
goto out;
}
- if (dest_tf_ops->tpg_parse_pr_out_transport_id == NULL) {
- pr_err("SPC-3 PR REGISTER_AND_MOVE: Fabric does not"
- " containg a valid tpg_parse_pr_out_transport_id"
- " function pointer\n");
- ret = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
- goto out;
- }
- initiator_str = dest_tf_ops->tpg_parse_pr_out_transport_id(dest_se_tpg,
+ initiator_str = target_parse_pr_out_transport_id(dest_se_tpg,
(const char *)&buf[24], &tmp_tid_len, &iport_ptr);
if (!initiator_str) {
pr_err("SPC-3 PR REGISTER_AND_MOVE: Unable to locate"
@@ -3295,12 +3302,12 @@
/*
* Locate the destination struct se_node_acl from the received Transport ID
*/
- spin_lock_irq(&dest_se_tpg->acl_node_lock);
+ mutex_lock(&dest_se_tpg->acl_node_mutex);
dest_node_acl = __core_tpg_get_initiator_node_acl(dest_se_tpg,
initiator_str);
if (dest_node_acl)
atomic_inc_mb(&dest_node_acl->acl_pr_ref_count);
- spin_unlock_irq(&dest_se_tpg->acl_node_lock);
+ mutex_unlock(&dest_se_tpg->acl_node_mutex);
if (!dest_node_acl) {
pr_err("Unable to locate %s dest_node_acl for"
@@ -3337,14 +3344,14 @@
if (core_scsi3_lunacl_depend_item(dest_se_deve)) {
pr_err("core_scsi3_lunacl_depend_item() failed\n");
- atomic_dec_mb(&dest_se_deve->pr_ref_count);
+ kref_put(&dest_se_deve->pr_kref, target_pr_kref_release);
dest_se_deve = NULL;
ret = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
goto out;
}
pr_debug("SPC-3 PR REGISTER_AND_MOVE: Located %s node %s LUN"
- " ACL for dest_se_deve->mapped_lun: %u\n",
+ " ACL for dest_se_deve->mapped_lun: %llu\n",
dest_tf_ops->get_fabric_name(), dest_node_acl->initiatorname,
dest_se_deve->mapped_lun);
@@ -3421,13 +3428,17 @@
dest_pr_reg = __core_scsi3_locate_pr_reg(dev, dest_node_acl,
iport_ptr);
if (!dest_pr_reg) {
- if (core_scsi3_alloc_registration(cmd->se_dev,
- dest_node_acl, dest_se_deve, iport_ptr,
- sa_res_key, 0, aptpl, 2, 1)) {
- spin_unlock(&dev->dev_reservation_lock);
+ struct se_lun *dest_lun = rcu_dereference_check(dest_se_deve->se_lun,
+ atomic_read(&dest_se_deve->pr_kref.refcount) != 0);
+
+ spin_unlock(&dev->dev_reservation_lock);
+ if (core_scsi3_alloc_registration(cmd->se_dev, dest_node_acl,
+ dest_lun, dest_se_deve, dest_se_deve->mapped_lun,
+ iport_ptr, sa_res_key, 0, aptpl, 2, 1)) {
ret = TCM_INVALID_PARAMETER_LIST;
goto out;
}
+ spin_lock(&dev->dev_reservation_lock);
dest_pr_reg = __core_scsi3_locate_pr_reg(dev, dest_node_acl,
iport_ptr);
new_reg = 1;
@@ -3883,9 +3894,10 @@
struct t10_pr_registration *pr_reg, *pr_reg_tmp;
struct t10_reservation *pr_tmpl = &dev->t10_pr;
unsigned char *buf;
- u32 add_desc_len = 0, add_len = 0, desc_len, exp_desc_len;
+ u32 add_desc_len = 0, add_len = 0;
u32 off = 8; /* off into first Full Status descriptor */
int format_code = 0, pr_res_type = 0, pr_res_scope = 0;
+ int exp_desc_len, desc_len;
bool all_reg = false;
if (cmd->data_length < 8) {
@@ -3930,10 +3942,10 @@
* Determine expected length of $FABRIC_MOD specific
* TransportID full status descriptor..
*/
- exp_desc_len = se_tpg->se_tpg_tfo->tpg_get_pr_transport_id_len(
- se_tpg, se_nacl, pr_reg, &format_code);
-
- if ((exp_desc_len + add_len) > cmd->data_length) {
+ exp_desc_len = target_get_pr_transport_id_len(se_nacl, pr_reg,
+ &format_code);
+ if (exp_desc_len < 0 ||
+ exp_desc_len + add_len > cmd->data_length) {
pr_warn("SPC-3 PRIN READ_FULL_STATUS ran"
" out of buffer: %d\n", cmd->data_length);
spin_lock(&pr_tmpl->registration_lock);
@@ -3990,21 +4002,26 @@
* IDENTIFIER field are not defined by this standard.
*/
if (!pr_reg->pr_reg_all_tg_pt) {
- struct se_port *port = pr_reg->pr_reg_tg_pt_lun->lun_sep;
+ u16 sep_rtpi = pr_reg->tg_pt_sep_rtpi;
- buf[off++] = ((port->sep_rtpi >> 8) & 0xff);
- buf[off++] = (port->sep_rtpi & 0xff);
+ buf[off++] = ((sep_rtpi >> 8) & 0xff);
+ buf[off++] = (sep_rtpi & 0xff);
} else
off += 2; /* Skip over RELATIVE TARGET PORT IDENTIFIER */
+ buf[off+4] = se_tpg->proto_id;
+
/*
- * Now, have the $FABRIC_MOD fill in the protocol identifier
+ * Now, have the $FABRIC_MOD fill in the transport ID.
*/
- desc_len = se_tpg->se_tpg_tfo->tpg_get_pr_transport_id(se_tpg,
- se_nacl, pr_reg, &format_code, &buf[off+4]);
+ desc_len = target_get_pr_transport_id(se_nacl, pr_reg,
+ &format_code, &buf[off+4]);
spin_lock(&pr_tmpl->registration_lock);
atomic_dec_mb(&pr_reg->pr_res_holders);
+
+ if (desc_len < 0)
+ break;
/*
* Set the ADDITIONAL DESCRIPTOR LENGTH
*/
diff --git a/drivers/target/target_core_pr.h b/drivers/target/target_core_pr.h
index 749fd7b..e3d26e9 100644
--- a/drivers/target/target_core_pr.h
+++ b/drivers/target/target_core_pr.h
@@ -56,11 +56,11 @@
extern sense_reason_t target_scsi2_reservation_reserve(struct se_cmd *);
extern int core_scsi3_alloc_aptpl_registration(
struct t10_reservation *, u64,
- unsigned char *, unsigned char *, u32,
- unsigned char *, u16, u32, int, int, u8);
+ unsigned char *, unsigned char *, u64,
+ unsigned char *, u16, u64, int, int, u8);
extern int core_scsi3_check_aptpl_registration(struct se_device *,
struct se_portal_group *, struct se_lun *,
- struct se_node_acl *, u32);
+ struct se_node_acl *, u64);
extern void core_scsi3_free_pr_reg_from_nacl(struct se_device *,
struct se_node_acl *);
extern void core_scsi3_free_all_registrations(struct se_device *);
diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c
index 26581e2..08e9084 100644
--- a/drivers/target/target_core_pscsi.c
+++ b/drivers/target/target_core_pscsi.c
@@ -42,9 +42,9 @@
#include <target/target_core_base.h>
#include <target/target_core_backend.h>
-#include <target/target_core_backend_configfs.h>
#include "target_core_alua.h"
+#include "target_core_internal.h"
#include "target_core_pscsi.h"
#define ISPRINT(a) ((a >= ' ') && (a <= '~'))
@@ -54,8 +54,6 @@
return container_of(dev, struct pscsi_dev_virt, dev);
}
-static struct se_subsystem_api pscsi_template;
-
static sense_reason_t pscsi_execute_cmd(struct se_cmd *cmd);
static void pscsi_req_done(struct request *, int);
@@ -80,7 +78,7 @@
pr_debug("CORE_HBA[%d] - TCM SCSI HBA Driver %s on"
" Generic Target Core Stack %s\n", hba->hba_id,
- PSCSI_VERSION, TARGET_CORE_MOD_VERSION);
+ PSCSI_VERSION, TARGET_CORE_VERSION);
pr_debug("CORE_HBA[%d] - Attached SCSI HBA to Generic\n",
hba->hba_id);
@@ -579,6 +577,14 @@
return -ENODEV;
}
+static void pscsi_dev_call_rcu(struct rcu_head *p)
+{
+ struct se_device *dev = container_of(p, struct se_device, rcu_head);
+ struct pscsi_dev_virt *pdv = PSCSI_DEV(dev);
+
+ kfree(pdv);
+}
+
static void pscsi_free_device(struct se_device *dev)
{
struct pscsi_dev_virt *pdv = PSCSI_DEV(dev);
@@ -610,8 +616,7 @@
pdv->pdv_sd = NULL;
}
-
- kfree(pdv);
+ call_rcu(&dev->rcu_head, pscsi_dev_call_rcu);
}
static void pscsi_transport_complete(struct se_cmd *cmd, struct scatterlist *sg,
@@ -635,12 +640,14 @@
* Hack to make sure that Write-Protect modepage is set if R/O mode is
* forced.
*/
- if (!cmd->se_deve || !cmd->data_length)
+ if (!cmd->data_length)
goto after_mode_sense;
if (((cdb[0] == MODE_SENSE) || (cdb[0] == MODE_SENSE_10)) &&
(status_byte(result) << 1) == SAM_STAT_GOOD) {
- if (cmd->se_deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY) {
+ bool read_only = target_lun_is_rdonly(cmd);
+
+ if (read_only) {
unsigned char *buf;
buf = transport_kmap_data_sg(cmd);
@@ -1116,27 +1123,7 @@
kfree(pt);
}
-DEF_TB_DEV_ATTRIB_RO(pscsi, hw_pi_prot_type);
-TB_DEV_ATTR_RO(pscsi, hw_pi_prot_type);
-
-DEF_TB_DEV_ATTRIB_RO(pscsi, hw_block_size);
-TB_DEV_ATTR_RO(pscsi, hw_block_size);
-
-DEF_TB_DEV_ATTRIB_RO(pscsi, hw_max_sectors);
-TB_DEV_ATTR_RO(pscsi, hw_max_sectors);
-
-DEF_TB_DEV_ATTRIB_RO(pscsi, hw_queue_depth);
-TB_DEV_ATTR_RO(pscsi, hw_queue_depth);
-
-static struct configfs_attribute *pscsi_backend_dev_attrs[] = {
- &pscsi_dev_attrib_hw_pi_prot_type.attr,
- &pscsi_dev_attrib_hw_block_size.attr,
- &pscsi_dev_attrib_hw_max_sectors.attr,
- &pscsi_dev_attrib_hw_queue_depth.attr,
- NULL,
-};
-
-static struct se_subsystem_api pscsi_template = {
+static const struct target_backend_ops pscsi_ops = {
.name = "pscsi",
.owner = THIS_MODULE,
.transport_flags = TRANSPORT_FLAG_PASSTHROUGH,
@@ -1152,21 +1139,17 @@
.show_configfs_dev_params = pscsi_show_configfs_dev_params,
.get_device_type = pscsi_get_device_type,
.get_blocks = pscsi_get_blocks,
+ .tb_dev_attrib_attrs = passthrough_attrib_attrs,
};
static int __init pscsi_module_init(void)
{
- struct target_backend_cits *tbc = &pscsi_template.tb_cits;
-
- target_core_setup_sub_cits(&pscsi_template);
- tbc->tb_dev_attrib_cit.ct_attrs = pscsi_backend_dev_attrs;
-
- return transport_subsystem_register(&pscsi_template);
+ return transport_backend_register(&pscsi_ops);
}
static void __exit pscsi_module_exit(void)
{
- transport_subsystem_release(&pscsi_template);
+ target_backend_unregister(&pscsi_ops);
}
MODULE_DESCRIPTION("TCM PSCSI subsystem plugin");
diff --git a/drivers/target/target_core_rd.c b/drivers/target/target_core_rd.c
index b2d8f6f..4703f40 100644
--- a/drivers/target/target_core_rd.c
+++ b/drivers/target/target_core_rd.c
@@ -33,7 +33,6 @@
#include <target/target_core_base.h>
#include <target/target_core_backend.h>
-#include <target/target_core_backend_configfs.h>
#include "target_core_rd.h"
@@ -42,10 +41,6 @@
return container_of(dev, struct rd_dev, dev);
}
-/* rd_attach_hba(): (Part of se_subsystem_api_t template)
- *
- *
- */
static int rd_attach_hba(struct se_hba *hba, u32 host_id)
{
struct rd_host *rd_host;
@@ -62,7 +57,7 @@
pr_debug("CORE_HBA[%d] - TCM Ramdisk HBA Driver %s on"
" Generic Target Core Stack %s\n", hba->hba_id,
- RD_HBA_VERSION, TARGET_CORE_MOD_VERSION);
+ RD_HBA_VERSION, TARGET_CORE_VERSION);
return 0;
}
@@ -354,12 +349,20 @@
return ret;
}
+static void rd_dev_call_rcu(struct rcu_head *p)
+{
+ struct se_device *dev = container_of(p, struct se_device, rcu_head);
+ struct rd_dev *rd_dev = RD_DEV(dev);
+
+ kfree(rd_dev);
+}
+
static void rd_free_device(struct se_device *dev)
{
struct rd_dev *rd_dev = RD_DEV(dev);
rd_release_device_space(rd_dev);
- kfree(rd_dev);
+ call_rcu(&dev->rcu_head, rd_dev_call_rcu);
}
static struct rd_dev_sg_table *rd_get_sg_table(struct rd_dev *rd_dev, u32 page)
@@ -402,10 +405,7 @@
return NULL;
}
-typedef sense_reason_t (*dif_verify)(struct se_cmd *, sector_t, unsigned int,
- unsigned int, struct scatterlist *, int);
-
-static sense_reason_t rd_do_prot_rw(struct se_cmd *cmd, dif_verify dif_verify)
+static sense_reason_t rd_do_prot_rw(struct se_cmd *cmd, bool is_read)
{
struct se_device *se_dev = cmd->se_dev;
struct rd_dev *dev = RD_DEV(se_dev);
@@ -465,7 +465,16 @@
#endif /* !CONFIG_ARCH_HAS_SG_CHAIN */
- rc = dif_verify(cmd, cmd->t_task_lba, sectors, 0, prot_sg, prot_offset);
+ if (is_read)
+ rc = sbc_dif_verify(cmd, cmd->t_task_lba, sectors, 0,
+ prot_sg, prot_offset);
+ else
+ rc = sbc_dif_verify(cmd, cmd->t_task_lba, sectors, 0,
+ cmd->t_prot_sg, 0);
+
+ if (!rc)
+ sbc_dif_copy_prot(cmd, sectors, is_read, prot_sg, prot_offset);
+
if (need_to_release)
kfree(prot_sg);
@@ -511,7 +520,7 @@
if (cmd->prot_type && se_dev->dev_attrib.pi_prot_type &&
data_direction == DMA_TO_DEVICE) {
- rc = rd_do_prot_rw(cmd, sbc_dif_verify_write);
+ rc = rd_do_prot_rw(cmd, false);
if (rc)
return rc;
}
@@ -579,7 +588,7 @@
if (cmd->prot_type && se_dev->dev_attrib.pi_prot_type &&
data_direction == DMA_FROM_DEVICE) {
- rc = rd_do_prot_rw(cmd, sbc_dif_verify_read);
+ rc = rd_do_prot_rw(cmd, true);
if (rc)
return rc;
}
@@ -693,42 +702,7 @@
return sbc_parse_cdb(cmd, &rd_sbc_ops);
}
-DEF_TB_DEFAULT_ATTRIBS(rd_mcp);
-
-static struct configfs_attribute *rd_mcp_backend_dev_attrs[] = {
- &rd_mcp_dev_attrib_emulate_model_alias.attr,
- &rd_mcp_dev_attrib_emulate_dpo.attr,
- &rd_mcp_dev_attrib_emulate_fua_write.attr,
- &rd_mcp_dev_attrib_emulate_fua_read.attr,
- &rd_mcp_dev_attrib_emulate_write_cache.attr,
- &rd_mcp_dev_attrib_emulate_ua_intlck_ctrl.attr,
- &rd_mcp_dev_attrib_emulate_tas.attr,
- &rd_mcp_dev_attrib_emulate_tpu.attr,
- &rd_mcp_dev_attrib_emulate_tpws.attr,
- &rd_mcp_dev_attrib_emulate_caw.attr,
- &rd_mcp_dev_attrib_emulate_3pc.attr,
- &rd_mcp_dev_attrib_pi_prot_type.attr,
- &rd_mcp_dev_attrib_hw_pi_prot_type.attr,
- &rd_mcp_dev_attrib_pi_prot_format.attr,
- &rd_mcp_dev_attrib_enforce_pr_isids.attr,
- &rd_mcp_dev_attrib_is_nonrot.attr,
- &rd_mcp_dev_attrib_emulate_rest_reord.attr,
- &rd_mcp_dev_attrib_force_pr_aptpl.attr,
- &rd_mcp_dev_attrib_hw_block_size.attr,
- &rd_mcp_dev_attrib_block_size.attr,
- &rd_mcp_dev_attrib_hw_max_sectors.attr,
- &rd_mcp_dev_attrib_optimal_sectors.attr,
- &rd_mcp_dev_attrib_hw_queue_depth.attr,
- &rd_mcp_dev_attrib_queue_depth.attr,
- &rd_mcp_dev_attrib_max_unmap_lba_count.attr,
- &rd_mcp_dev_attrib_max_unmap_block_desc_count.attr,
- &rd_mcp_dev_attrib_unmap_granularity.attr,
- &rd_mcp_dev_attrib_unmap_granularity_alignment.attr,
- &rd_mcp_dev_attrib_max_write_same_len.attr,
- NULL,
-};
-
-static struct se_subsystem_api rd_mcp_template = {
+static const struct target_backend_ops rd_mcp_ops = {
.name = "rd_mcp",
.inquiry_prod = "RAMDISK-MCP",
.inquiry_rev = RD_MCP_VERSION,
@@ -744,25 +718,15 @@
.get_blocks = rd_get_blocks,
.init_prot = rd_init_prot,
.free_prot = rd_free_prot,
+ .tb_dev_attrib_attrs = sbc_attrib_attrs,
};
int __init rd_module_init(void)
{
- struct target_backend_cits *tbc = &rd_mcp_template.tb_cits;
- int ret;
-
- target_core_setup_sub_cits(&rd_mcp_template);
- tbc->tb_dev_attrib_cit.ct_attrs = rd_mcp_backend_dev_attrs;
-
- ret = transport_subsystem_register(&rd_mcp_template);
- if (ret < 0) {
- return ret;
- }
-
- return 0;
+ return transport_backend_register(&rd_mcp_ops);
}
void rd_module_exit(void)
{
- transport_subsystem_release(&rd_mcp_template);
+ target_backend_unregister(&rd_mcp_ops);
}
diff --git a/drivers/target/target_core_sbc.c b/drivers/target/target_core_sbc.c
index 43719b3..e318ddb 100644
--- a/drivers/target/target_core_sbc.c
+++ b/drivers/target/target_core_sbc.c
@@ -38,6 +38,7 @@
static sense_reason_t
sbc_check_prot(struct se_device *, struct se_cmd *, unsigned char *, u32, bool);
+static sense_reason_t sbc_execute_unmap(struct se_cmd *cmd);
static sense_reason_t
sbc_emulate_readcapacity(struct se_cmd *cmd)
@@ -177,6 +178,23 @@
EXPORT_SYMBOL(sbc_get_write_same_sectors);
static sense_reason_t
+sbc_execute_write_same_unmap(struct se_cmd *cmd)
+{
+ struct sbc_ops *ops = cmd->protocol_data;
+ sector_t nolb = sbc_get_write_same_sectors(cmd);
+ sense_reason_t ret;
+
+ if (nolb) {
+ ret = ops->execute_unmap(cmd, cmd->t_task_lba, nolb);
+ if (ret)
+ return ret;
+ }
+
+ target_complete_cmd(cmd, GOOD);
+ return 0;
+}
+
+static sense_reason_t
sbc_emulate_noop(struct se_cmd *cmd)
{
target_complete_cmd(cmd, GOOD);
@@ -299,7 +317,7 @@
* translated into block discard requests within backend code.
*/
if (flags[0] & 0x08) {
- if (!ops->execute_write_same_unmap)
+ if (!ops->execute_unmap)
return TCM_UNSUPPORTED_SCSI_OPCODE;
if (!dev->dev_attrib.emulate_tpws) {
@@ -307,7 +325,7 @@
" has emulate_tpws disabled\n");
return TCM_UNSUPPORTED_SCSI_OPCODE;
}
- cmd->execute_cmd = ops->execute_write_same_unmap;
+ cmd->execute_cmd = sbc_execute_write_same_unmap;
return 0;
}
if (!ops->execute_write_same)
@@ -381,7 +399,9 @@
static sense_reason_t
sbc_execute_rw(struct se_cmd *cmd)
{
- return cmd->execute_rw(cmd, cmd->t_data_sg, cmd->t_data_nents,
+ struct sbc_ops *ops = cmd->protocol_data;
+
+ return ops->execute_rw(cmd, cmd->t_data_sg, cmd->t_data_nents,
cmd->data_direction);
}
@@ -560,6 +580,7 @@
static sense_reason_t
sbc_compare_and_write(struct se_cmd *cmd)
{
+ struct sbc_ops *ops = cmd->protocol_data;
struct se_device *dev = cmd->se_dev;
sense_reason_t ret;
int rc;
@@ -579,7 +600,7 @@
*/
cmd->data_length = cmd->t_task_nolb * dev->dev_attrib.block_size;
- ret = cmd->execute_rw(cmd, cmd->t_bidi_data_sg, cmd->t_bidi_data_nents,
+ ret = ops->execute_rw(cmd, cmd->t_bidi_data_sg, cmd->t_bidi_data_nents,
DMA_FROM_DEVICE);
if (ret) {
cmd->transport_complete_callback = NULL;
@@ -738,14 +759,15 @@
sbc_check_dpofua(struct se_device *dev, struct se_cmd *cmd, unsigned char *cdb)
{
if (cdb[1] & 0x10) {
- if (!dev->dev_attrib.emulate_dpo) {
+ /* see explanation in spc_emulate_modesense */
+ if (!target_check_fua(dev)) {
pr_err("Got CDB: 0x%02x with DPO bit set, but device"
" does not advertise support for DPO\n", cdb[0]);
return -EINVAL;
}
}
if (cdb[1] & 0x8) {
- if (!dev->dev_attrib.emulate_fua_write || !se_dev_check_wce(dev)) {
+ if (!target_check_fua(dev)) {
pr_err("Got CDB: 0x%02x with FUA bit set, but device"
" does not advertise support for FUA write\n",
cdb[0]);
@@ -765,12 +787,13 @@
u32 sectors = 0;
sense_reason_t ret;
+ cmd->protocol_data = ops;
+
switch (cdb[0]) {
case READ_6:
sectors = transport_get_sectors_6(cdb);
cmd->t_task_lba = transport_lba_21(cdb);
cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB;
- cmd->execute_rw = ops->execute_rw;
cmd->execute_cmd = sbc_execute_rw;
break;
case READ_10:
@@ -785,7 +808,6 @@
return ret;
cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB;
- cmd->execute_rw = ops->execute_rw;
cmd->execute_cmd = sbc_execute_rw;
break;
case READ_12:
@@ -800,7 +822,6 @@
return ret;
cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB;
- cmd->execute_rw = ops->execute_rw;
cmd->execute_cmd = sbc_execute_rw;
break;
case READ_16:
@@ -815,14 +836,12 @@
return ret;
cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB;
- cmd->execute_rw = ops->execute_rw;
cmd->execute_cmd = sbc_execute_rw;
break;
case WRITE_6:
sectors = transport_get_sectors_6(cdb);
cmd->t_task_lba = transport_lba_21(cdb);
cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB;
- cmd->execute_rw = ops->execute_rw;
cmd->execute_cmd = sbc_execute_rw;
break;
case WRITE_10:
@@ -838,7 +857,6 @@
return ret;
cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB;
- cmd->execute_rw = ops->execute_rw;
cmd->execute_cmd = sbc_execute_rw;
break;
case WRITE_12:
@@ -853,7 +871,6 @@
return ret;
cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB;
- cmd->execute_rw = ops->execute_rw;
cmd->execute_cmd = sbc_execute_rw;
break;
case WRITE_16:
@@ -868,7 +885,6 @@
return ret;
cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB;
- cmd->execute_rw = ops->execute_rw;
cmd->execute_cmd = sbc_execute_rw;
break;
case XDWRITEREAD_10:
@@ -886,7 +902,6 @@
/*
* Setup BIDI XOR callback to be run after I/O completion.
*/
- cmd->execute_rw = ops->execute_rw;
cmd->execute_cmd = sbc_execute_rw;
cmd->transport_complete_callback = &xdreadwrite_callback;
break;
@@ -910,7 +925,6 @@
* Setup BIDI XOR callback to be run during after I/O
* completion.
*/
- cmd->execute_rw = ops->execute_rw;
cmd->execute_cmd = sbc_execute_rw;
cmd->transport_complete_callback = &xdreadwrite_callback;
break;
@@ -954,7 +968,6 @@
cmd->t_task_lba = get_unaligned_be64(&cdb[2]);
cmd->t_task_nolb = sectors;
cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB | SCF_COMPARE_AND_WRITE;
- cmd->execute_rw = ops->execute_rw;
cmd->execute_cmd = sbc_compare_and_write;
cmd->transport_complete_callback = compare_and_write_callback;
break;
@@ -1004,7 +1017,7 @@
return TCM_UNSUPPORTED_SCSI_OPCODE;
}
size = get_unaligned_be16(&cdb[7]);
- cmd->execute_cmd = ops->execute_unmap;
+ cmd->execute_cmd = sbc_execute_unmap;
break;
case WRITE_SAME_16:
sectors = transport_get_sectors_16(cdb);
@@ -1092,12 +1105,10 @@
}
EXPORT_SYMBOL(sbc_get_device_type);
-sense_reason_t
-sbc_execute_unmap(struct se_cmd *cmd,
- sense_reason_t (*do_unmap_fn)(struct se_cmd *, void *,
- sector_t, sector_t),
- void *priv)
+static sense_reason_t
+sbc_execute_unmap(struct se_cmd *cmd)
{
+ struct sbc_ops *ops = cmd->protocol_data;
struct se_device *dev = cmd->se_dev;
unsigned char *buf, *ptr = NULL;
sector_t lba;
@@ -1161,7 +1172,7 @@
goto err;
}
- ret = do_unmap_fn(cmd, priv, lba, range);
+ ret = ops->execute_unmap(cmd, lba, range);
if (ret)
goto err;
@@ -1175,34 +1186,56 @@
target_complete_cmd(cmd, GOOD);
return ret;
}
-EXPORT_SYMBOL(sbc_execute_unmap);
void
sbc_dif_generate(struct se_cmd *cmd)
{
struct se_device *dev = cmd->se_dev;
struct se_dif_v1_tuple *sdt;
- struct scatterlist *dsg, *psg = cmd->t_prot_sg;
+ struct scatterlist *dsg = cmd->t_data_sg, *psg;
sector_t sector = cmd->t_task_lba;
void *daddr, *paddr;
int i, j, offset = 0;
+ unsigned int block_size = dev->dev_attrib.block_size;
- for_each_sg(cmd->t_data_sg, dsg, cmd->t_data_nents, i) {
- daddr = kmap_atomic(sg_page(dsg)) + dsg->offset;
+ for_each_sg(cmd->t_prot_sg, psg, cmd->t_prot_nents, i) {
paddr = kmap_atomic(sg_page(psg)) + psg->offset;
+ daddr = kmap_atomic(sg_page(dsg)) + dsg->offset;
- for (j = 0; j < dsg->length; j += dev->dev_attrib.block_size) {
+ for (j = 0; j < psg->length;
+ j += sizeof(struct se_dif_v1_tuple)) {
+ __u16 crc;
+ unsigned int avail;
- if (offset >= psg->length) {
- kunmap_atomic(paddr);
- psg = sg_next(psg);
- paddr = kmap_atomic(sg_page(psg)) + psg->offset;
- offset = 0;
+ if (offset >= dsg->length) {
+ offset -= dsg->length;
+ kunmap_atomic(daddr - dsg->offset);
+ dsg = sg_next(dsg);
+ if (!dsg) {
+ kunmap_atomic(paddr - psg->offset);
+ return;
+ }
+ daddr = kmap_atomic(sg_page(dsg)) + dsg->offset;
}
- sdt = paddr + offset;
- sdt->guard_tag = cpu_to_be16(crc_t10dif(daddr + j,
- dev->dev_attrib.block_size));
+ sdt = paddr + j;
+ avail = min(block_size, dsg->length - offset);
+ crc = crc_t10dif(daddr + offset, avail);
+ if (avail < block_size) {
+ kunmap_atomic(daddr - dsg->offset);
+ dsg = sg_next(dsg);
+ if (!dsg) {
+ kunmap_atomic(paddr - psg->offset);
+ return;
+ }
+ daddr = kmap_atomic(sg_page(dsg)) + dsg->offset;
+ offset = block_size - avail;
+ crc = crc_t10dif_update(crc, daddr, offset);
+ } else {
+ offset += block_size;
+ }
+
+ sdt->guard_tag = cpu_to_be16(crc);
if (cmd->prot_type == TARGET_DIF_TYPE1_PROT)
sdt->ref_tag = cpu_to_be32(sector & 0xffffffff);
sdt->app_tag = 0;
@@ -1215,26 +1248,23 @@
be32_to_cpu(sdt->ref_tag));
sector++;
- offset += sizeof(struct se_dif_v1_tuple);
}
- kunmap_atomic(paddr);
- kunmap_atomic(daddr);
+ kunmap_atomic(daddr - dsg->offset);
+ kunmap_atomic(paddr - psg->offset);
}
}
static sense_reason_t
sbc_dif_v1_verify(struct se_cmd *cmd, struct se_dif_v1_tuple *sdt,
- const void *p, sector_t sector, unsigned int ei_lba)
+ __u16 crc, sector_t sector, unsigned int ei_lba)
{
- struct se_device *dev = cmd->se_dev;
- int block_size = dev->dev_attrib.block_size;
__be16 csum;
if (!(cmd->prot_checks & TARGET_DIF_CHECK_GUARD))
goto check_ref;
- csum = cpu_to_be16(crc_t10dif(p, block_size));
+ csum = cpu_to_be16(crc);
if (sdt->guard_tag != csum) {
pr_err("DIFv1 checksum failed on sector %llu guard tag 0x%04x"
@@ -1266,9 +1296,8 @@
return 0;
}
-static void
-sbc_dif_copy_prot(struct se_cmd *cmd, unsigned int sectors, bool read,
- struct scatterlist *sg, int sg_off)
+void sbc_dif_copy_prot(struct se_cmd *cmd, unsigned int sectors, bool read,
+ struct scatterlist *sg, int sg_off)
{
struct se_device *dev = cmd->se_dev;
struct scatterlist *psg;
@@ -1300,100 +1329,54 @@
copied += len;
psg_len -= len;
+ kunmap_atomic(addr - sg->offset - offset);
+
if (offset >= sg->length) {
sg = sg_next(sg);
offset = 0;
}
- kunmap_atomic(addr);
}
- kunmap_atomic(paddr);
+ kunmap_atomic(paddr - psg->offset);
}
}
+EXPORT_SYMBOL(sbc_dif_copy_prot);
sense_reason_t
-sbc_dif_verify_write(struct se_cmd *cmd, sector_t start, unsigned int sectors,
- unsigned int ei_lba, struct scatterlist *sg, int sg_off)
+sbc_dif_verify(struct se_cmd *cmd, sector_t start, unsigned int sectors,
+ unsigned int ei_lba, struct scatterlist *psg, int psg_off)
{
struct se_device *dev = cmd->se_dev;
struct se_dif_v1_tuple *sdt;
- struct scatterlist *dsg, *psg = cmd->t_prot_sg;
+ struct scatterlist *dsg = cmd->t_data_sg;
sector_t sector = start;
void *daddr, *paddr;
- int i, j, offset = 0;
+ int i;
sense_reason_t rc;
+ int dsg_off = 0;
+ unsigned int block_size = dev->dev_attrib.block_size;
- for_each_sg(cmd->t_data_sg, dsg, cmd->t_data_nents, i) {
- daddr = kmap_atomic(sg_page(dsg)) + dsg->offset;
+ for (; psg && sector < start + sectors; psg = sg_next(psg)) {
paddr = kmap_atomic(sg_page(psg)) + psg->offset;
-
- for (j = 0; j < dsg->length; j += dev->dev_attrib.block_size) {
-
- if (offset >= psg->length) {
- kunmap_atomic(paddr);
- psg = sg_next(psg);
- paddr = kmap_atomic(sg_page(psg)) + psg->offset;
- offset = 0;
- }
-
- sdt = paddr + offset;
-
- pr_debug("DIF WRITE sector: %llu guard_tag: 0x%04x"
- " app_tag: 0x%04x ref_tag: %u\n",
- (unsigned long long)sector, sdt->guard_tag,
- sdt->app_tag, be32_to_cpu(sdt->ref_tag));
-
- rc = sbc_dif_v1_verify(cmd, sdt, daddr + j, sector,
- ei_lba);
- if (rc) {
- kunmap_atomic(paddr);
- kunmap_atomic(daddr);
- cmd->bad_sector = sector;
- return rc;
- }
-
- sector++;
- ei_lba++;
- offset += sizeof(struct se_dif_v1_tuple);
- }
-
- kunmap_atomic(paddr);
- kunmap_atomic(daddr);
- }
- if (!sg)
- return 0;
-
- sbc_dif_copy_prot(cmd, sectors, false, sg, sg_off);
-
- return 0;
-}
-EXPORT_SYMBOL(sbc_dif_verify_write);
-
-static sense_reason_t
-__sbc_dif_verify_read(struct se_cmd *cmd, sector_t start, unsigned int sectors,
- unsigned int ei_lba, struct scatterlist *sg, int sg_off)
-{
- struct se_device *dev = cmd->se_dev;
- struct se_dif_v1_tuple *sdt;
- struct scatterlist *dsg, *psg = sg;
- sector_t sector = start;
- void *daddr, *paddr;
- int i, j, offset = sg_off;
- sense_reason_t rc;
-
- for_each_sg(cmd->t_data_sg, dsg, cmd->t_data_nents, i) {
daddr = kmap_atomic(sg_page(dsg)) + dsg->offset;
- paddr = kmap_atomic(sg_page(psg)) + sg->offset;
- for (j = 0; j < dsg->length; j += dev->dev_attrib.block_size) {
+ for (i = psg_off; i < psg->length &&
+ sector < start + sectors;
+ i += sizeof(struct se_dif_v1_tuple)) {
+ __u16 crc;
+ unsigned int avail;
- if (offset >= psg->length) {
- kunmap_atomic(paddr);
- psg = sg_next(psg);
- paddr = kmap_atomic(sg_page(psg)) + psg->offset;
- offset = 0;
+ if (dsg_off >= dsg->length) {
+ dsg_off -= dsg->length;
+ kunmap_atomic(daddr - dsg->offset);
+ dsg = sg_next(dsg);
+ if (!dsg) {
+ kunmap_atomic(paddr - psg->offset);
+ return 0;
+ }
+ daddr = kmap_atomic(sg_page(dsg)) + dsg->offset;
}
- sdt = paddr + offset;
+ sdt = paddr + i;
pr_debug("DIF READ sector: %llu guard_tag: 0x%04x"
" app_tag: 0x%04x ref_tag: %u\n",
@@ -1401,53 +1384,43 @@
sdt->app_tag, be32_to_cpu(sdt->ref_tag));
if (sdt->app_tag == cpu_to_be16(0xffff)) {
- sector++;
- offset += sizeof(struct se_dif_v1_tuple);
- continue;
+ dsg_off += block_size;
+ goto next;
}
- rc = sbc_dif_v1_verify(cmd, sdt, daddr + j, sector,
- ei_lba);
+ avail = min(block_size, dsg->length - dsg_off);
+ crc = crc_t10dif(daddr + dsg_off, avail);
+ if (avail < block_size) {
+ kunmap_atomic(daddr - dsg->offset);
+ dsg = sg_next(dsg);
+ if (!dsg) {
+ kunmap_atomic(paddr - psg->offset);
+ return 0;
+ }
+ daddr = kmap_atomic(sg_page(dsg)) + dsg->offset;
+ dsg_off = block_size - avail;
+ crc = crc_t10dif_update(crc, daddr, dsg_off);
+ } else {
+ dsg_off += block_size;
+ }
+
+ rc = sbc_dif_v1_verify(cmd, sdt, crc, sector, ei_lba);
if (rc) {
- kunmap_atomic(paddr);
- kunmap_atomic(daddr);
+ kunmap_atomic(daddr - dsg->offset);
+ kunmap_atomic(paddr - psg->offset);
cmd->bad_sector = sector;
return rc;
}
-
+next:
sector++;
ei_lba++;
- offset += sizeof(struct se_dif_v1_tuple);
}
- kunmap_atomic(paddr);
- kunmap_atomic(daddr);
+ psg_off = 0;
+ kunmap_atomic(daddr - dsg->offset);
+ kunmap_atomic(paddr - psg->offset);
}
return 0;
}
-
-sense_reason_t
-sbc_dif_read_strip(struct se_cmd *cmd)
-{
- struct se_device *dev = cmd->se_dev;
- u32 sectors = cmd->prot_length / dev->prot_length;
-
- return __sbc_dif_verify_read(cmd, cmd->t_task_lba, sectors, 0,
- cmd->t_prot_sg, 0);
-}
-
-sense_reason_t
-sbc_dif_verify_read(struct se_cmd *cmd, sector_t start, unsigned int sectors,
- unsigned int ei_lba, struct scatterlist *sg, int sg_off)
-{
- sense_reason_t rc;
-
- rc = __sbc_dif_verify_read(cmd, start, sectors, ei_lba, sg, sg_off);
- if (rc)
- return rc;
-
- sbc_dif_copy_prot(cmd, sectors, true, sg, sg_off);
- return 0;
-}
-EXPORT_SYMBOL(sbc_dif_verify_read);
+EXPORT_SYMBOL(sbc_dif_verify);
diff --git a/drivers/target/target_core_spc.c b/drivers/target/target_core_spc.c
index 52ea640..b074443 100644
--- a/drivers/target/target_core_spc.c
+++ b/drivers/target/target_core_spc.c
@@ -38,10 +38,9 @@
#include "target_core_ua.h"
#include "target_core_xcopy.h"
-static void spc_fill_alua_data(struct se_port *port, unsigned char *buf)
+static void spc_fill_alua_data(struct se_lun *lun, unsigned char *buf)
{
struct t10_alua_tg_pt_gp *tg_pt_gp;
- struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem;
/*
* Set SCCS for MAINTENANCE_IN + REPORT_TARGET_PORT_GROUPS.
@@ -54,17 +53,11 @@
*
* See spc4r17 section 6.4.2 Table 135
*/
- if (!port)
- return;
- tg_pt_gp_mem = port->sep_alua_tg_pt_gp_mem;
- if (!tg_pt_gp_mem)
- return;
-
- spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
- tg_pt_gp = tg_pt_gp_mem->tg_pt_gp;
+ spin_lock(&lun->lun_tg_pt_gp_lock);
+ tg_pt_gp = lun->lun_tg_pt_gp;
if (tg_pt_gp)
buf[5] |= tg_pt_gp->tg_pt_gp_alua_access_type;
- spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
+ spin_unlock(&lun->lun_tg_pt_gp_lock);
}
sense_reason_t
@@ -95,7 +88,7 @@
/*
* Enable SCCS and TPGS fields for Emulated ALUA
*/
- spc_fill_alua_data(lun->lun_sep, buf);
+ spc_fill_alua_data(lun, buf);
/*
* Set Third-Party Copy (3PC) bit to indicate support for EXTENDED_COPY
@@ -182,11 +175,9 @@
{
struct se_device *dev = cmd->se_dev;
struct se_lun *lun = cmd->se_lun;
- struct se_port *port = NULL;
struct se_portal_group *tpg = NULL;
struct t10_alua_lu_gp_member *lu_gp_mem;
struct t10_alua_tg_pt_gp *tg_pt_gp;
- struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem;
unsigned char *prod = &dev->t10_wwn.model[0];
u32 prod_len;
u32 unit_serial_len, off = 0;
@@ -268,18 +259,15 @@
/* Header size for Designation descriptor */
len += (id_len + 4);
off += (id_len + 4);
- /*
- * struct se_port is only set for INQUIRY VPD=1 through $FABRIC_MOD
- */
- port = lun->lun_sep;
- if (port) {
+
+ if (1) {
struct t10_alua_lu_gp *lu_gp;
u32 padding, scsi_name_len, scsi_target_len;
u16 lu_gp_id = 0;
u16 tg_pt_gp_id = 0;
u16 tpgt;
- tpg = port->sep_tpg;
+ tpg = lun->lun_tpg;
/*
* Relative target port identifer, see spc4r17
* section 7.7.3.7
@@ -287,8 +275,7 @@
* Get the PROTOCOL IDENTIFIER as defined by spc4r17
* section 7.5.1 Table 362
*/
- buf[off] =
- (tpg->se_tpg_tfo->get_fabric_proto_ident(tpg) << 4);
+ buf[off] = tpg->proto_id << 4;
buf[off++] |= 0x1; /* CODE SET == Binary */
buf[off] = 0x80; /* Set PIV=1 */
/* Set ASSOCIATION == target port: 01b */
@@ -300,8 +287,8 @@
/* Skip over Obsolete field in RTPI payload
* in Table 472 */
off += 2;
- buf[off++] = ((port->sep_rtpi >> 8) & 0xff);
- buf[off++] = (port->sep_rtpi & 0xff);
+ buf[off++] = ((lun->lun_rtpi >> 8) & 0xff);
+ buf[off++] = (lun->lun_rtpi & 0xff);
len += 8; /* Header size + Designation descriptor */
/*
* Target port group identifier, see spc4r17
@@ -310,21 +297,16 @@
* Get the PROTOCOL IDENTIFIER as defined by spc4r17
* section 7.5.1 Table 362
*/
- tg_pt_gp_mem = port->sep_alua_tg_pt_gp_mem;
- if (!tg_pt_gp_mem)
- goto check_lu_gp;
-
- spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
- tg_pt_gp = tg_pt_gp_mem->tg_pt_gp;
+ spin_lock(&lun->lun_tg_pt_gp_lock);
+ tg_pt_gp = lun->lun_tg_pt_gp;
if (!tg_pt_gp) {
- spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
+ spin_unlock(&lun->lun_tg_pt_gp_lock);
goto check_lu_gp;
}
tg_pt_gp_id = tg_pt_gp->tg_pt_gp_id;
- spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
+ spin_unlock(&lun->lun_tg_pt_gp_lock);
- buf[off] =
- (tpg->se_tpg_tfo->get_fabric_proto_ident(tpg) << 4);
+ buf[off] = tpg->proto_id << 4;
buf[off++] |= 0x1; /* CODE SET == Binary */
buf[off] = 0x80; /* Set PIV=1 */
/* Set ASSOCIATION == target port: 01b */
@@ -372,8 +354,7 @@
* section 7.5.1 Table 362
*/
check_scsi_name:
- buf[off] =
- (tpg->se_tpg_tfo->get_fabric_proto_ident(tpg) << 4);
+ buf[off] = tpg->proto_id << 4;
buf[off++] |= 0x3; /* CODE SET == UTF-8 */
buf[off] = 0x80; /* Set PIV=1 */
/* Set ASSOCIATION == target port: 01b */
@@ -413,8 +394,7 @@
/*
* Target device designator
*/
- buf[off] =
- (tpg->se_tpg_tfo->get_fabric_proto_ident(tpg) << 4);
+ buf[off] = tpg->proto_id << 4;
buf[off++] |= 0x3; /* CODE SET == UTF-8 */
buf[off] = 0x80; /* Set PIV=1 */
/* Set ASSOCIATION == target device: 10b */
@@ -482,7 +462,7 @@
buf[5] = 0x07;
/* If WriteCache emulation is enabled, set V_SUP */
- if (se_dev_check_wce(dev))
+ if (target_check_wce(dev))
buf[6] = 0x01;
/* If an LBA map is present set R_SUP */
spin_lock(&cmd->se_dev->t10_alua.lba_map_lock);
@@ -699,7 +679,7 @@
spc_emulate_inquiry(struct se_cmd *cmd)
{
struct se_device *dev = cmd->se_dev;
- struct se_portal_group *tpg = cmd->se_lun->lun_sep->sep_tpg;
+ struct se_portal_group *tpg = cmd->se_lun->lun_tpg;
unsigned char *rbuf;
unsigned char *cdb = cmd->t_task_cdb;
unsigned char *buf;
@@ -713,7 +693,7 @@
return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
}
- if (dev == tpg->tpg_virt_lun0.lun_se_dev)
+ if (dev == rcu_access_pointer(tpg->tpg_virt_lun0->lun_se_dev))
buf[0] = 0x3f; /* Not connected */
else
buf[0] = dev->transport->get_device_type(dev);
@@ -889,7 +869,7 @@
if (pc == 1)
goto out;
- if (se_dev_check_wce(dev))
+ if (target_check_wce(dev))
p[2] = 0x04; /* Write Cache Enable */
p[12] = 0x20; /* Disabled Read Ahead */
@@ -986,6 +966,7 @@
int length = 0;
int ret;
int i;
+ bool read_only = target_lun_is_rdonly(cmd);;
memset(buf, 0, SE_MODE_PAGE_BUF);
@@ -996,13 +977,15 @@
length = ten ? 3 : 2;
/* DEVICE-SPECIFIC PARAMETER */
- if ((cmd->se_lun->lun_access & TRANSPORT_LUNFLAGS_READ_ONLY) ||
- (cmd->se_deve &&
- (cmd->se_deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY)))
+ if ((cmd->se_lun->lun_access & TRANSPORT_LUNFLAGS_READ_ONLY) || read_only)
spc_modesense_write_protect(&buf[length], type);
- if ((se_dev_check_wce(dev)) &&
- (dev->dev_attrib.emulate_fua_write > 0))
+ /*
+ * SBC only allows us to enable FUA and DPO together. Fortunately
+ * DPO is explicitly specified as a hint, so a noop is a perfectly
+ * valid implementation.
+ */
+ if (target_check_fua(dev))
spc_modesense_dpofua(&buf[length], type);
++length;
@@ -1212,8 +1195,9 @@
{
struct se_dev_entry *deve;
struct se_session *sess = cmd->se_sess;
+ struct se_node_acl *nacl;
unsigned char *buf;
- u32 lun_count = 0, offset = 8, i;
+ u32 lun_count = 0, offset = 8;
if (cmd->data_length < 16) {
pr_warn("REPORT LUNS allocation length %u too small\n",
@@ -1235,12 +1219,10 @@
lun_count = 1;
goto done;
}
+ nacl = sess->se_node_acl;
- spin_lock_irq(&sess->se_node_acl->device_list_lock);
- for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) {
- deve = sess->se_node_acl->device_list[i];
- if (!(deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS))
- continue;
+ rcu_read_lock();
+ hlist_for_each_entry_rcu(deve, &nacl->lun_entry_hlist, link) {
/*
* We determine the correct LUN LIST LENGTH even once we
* have reached the initial allocation length.
@@ -1253,7 +1235,7 @@
int_to_scsilun(deve->mapped_lun, (struct scsi_lun *)&buf[offset]);
offset += 8;
}
- spin_unlock_irq(&sess->se_node_acl->device_list_lock);
+ rcu_read_unlock();
/*
* See SPC3 r07, page 159.
diff --git a/drivers/target/target_core_stat.c b/drivers/target/target_core_stat.c
index 40f6c13..20ed5d2 100644
--- a/drivers/target/target_core_stat.c
+++ b/drivers/target/target_core_stat.c
@@ -37,7 +37,6 @@
#include <target/target_core_base.h>
#include <target/target_core_backend.h>
#include <target/target_core_fabric.h>
-#include <target/target_core_configfs.h>
#include <target/configfs_macros.h>
#include "target_core_internal.h"
@@ -104,7 +103,7 @@
struct se_device *dev =
container_of(sgrps, struct se_device, dev_stat_grps);
- return snprintf(page, PAGE_SIZE, "%u\n", dev->dev_port_count);
+ return snprintf(page, PAGE_SIZE, "%u\n", dev->export_count);
}
DEV_STAT_SCSI_DEV_ATTR_RO(ports);
@@ -540,20 +539,14 @@
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
- struct se_port *sep;
- struct se_device *dev = lun->lun_se_dev;
- struct se_hba *hba;
- ssize_t ret;
+ struct se_device *dev;
+ ssize_t ret = -ENODEV;
- spin_lock(&lun->lun_sep_lock);
- sep = lun->lun_sep;
- if (!sep) {
- spin_unlock(&lun->lun_sep_lock);
- return -ENODEV;
- }
- hba = dev->se_hba;
- ret = snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index);
- spin_unlock(&lun->lun_sep_lock);
+ rcu_read_lock();
+ dev = rcu_dereference(lun->lun_se_dev);
+ if (dev)
+ ret = snprintf(page, PAGE_SIZE, "%u\n", dev->hba_index);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_PORT_ATTR_RO(inst);
@@ -562,18 +555,14 @@
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
- struct se_port *sep;
- struct se_device *dev = lun->lun_se_dev;
- ssize_t ret;
+ struct se_device *dev;
+ ssize_t ret = -ENODEV;
- spin_lock(&lun->lun_sep_lock);
- sep = lun->lun_sep;
- if (!sep) {
- spin_unlock(&lun->lun_sep_lock);
- return -ENODEV;
- }
- ret = snprintf(page, PAGE_SIZE, "%u\n", dev->dev_index);
- spin_unlock(&lun->lun_sep_lock);
+ rcu_read_lock();
+ dev = rcu_dereference(lun->lun_se_dev);
+ if (dev)
+ ret = snprintf(page, PAGE_SIZE, "%u\n", dev->dev_index);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_PORT_ATTR_RO(dev);
@@ -582,17 +571,14 @@
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
- struct se_port *sep;
- ssize_t ret;
+ struct se_device *dev;
+ ssize_t ret = -ENODEV;
- spin_lock(&lun->lun_sep_lock);
- sep = lun->lun_sep;
- if (!sep) {
- spin_unlock(&lun->lun_sep_lock);
- return -ENODEV;
- }
- ret = snprintf(page, PAGE_SIZE, "%u\n", sep->sep_index);
- spin_unlock(&lun->lun_sep_lock);
+ rcu_read_lock();
+ dev = rcu_dereference(lun->lun_se_dev);
+ if (dev)
+ ret = snprintf(page, PAGE_SIZE, "%u\n", lun->lun_rtpi);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_PORT_ATTR_RO(indx);
@@ -601,21 +587,14 @@
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
- struct se_device *dev = lun->lun_se_dev;
- struct se_port *sep;
- ssize_t ret;
+ struct se_device *dev;
+ ssize_t ret = -ENODEV;
- if (!dev)
- return -ENODEV;
-
- spin_lock(&lun->lun_sep_lock);
- sep = lun->lun_sep;
- if (!sep) {
- spin_unlock(&lun->lun_sep_lock);
- return -ENODEV;
- }
- ret = snprintf(page, PAGE_SIZE, "%s%u\n", "Device", dev->dev_index);
- spin_unlock(&lun->lun_sep_lock);
+ rcu_read_lock();
+ dev = rcu_dereference(lun->lun_se_dev);
+ if (dev)
+ ret = snprintf(page, PAGE_SIZE, "%s%u\n", "Device", dev->dev_index);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_PORT_ATTR_RO(role);
@@ -624,18 +603,16 @@
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
- struct se_port *sep;
- ssize_t ret;
+ struct se_device *dev;
+ ssize_t ret = -ENODEV;
- spin_lock(&lun->lun_sep_lock);
- sep = lun->lun_sep;
- if (!sep) {
- spin_unlock(&lun->lun_sep_lock);
- return -ENODEV;
+ rcu_read_lock();
+ dev = rcu_dereference(lun->lun_se_dev);
+ if (dev) {
+ /* FIXME: scsiPortBusyStatuses */
+ ret = snprintf(page, PAGE_SIZE, "%u\n", 0);
}
- /* FIXME: scsiPortBusyStatuses */
- ret = snprintf(page, PAGE_SIZE, "%u\n", 0);
- spin_unlock(&lun->lun_sep_lock);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_PORT_ATTR_RO(busy_count);
@@ -683,20 +660,14 @@
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
- struct se_device *dev = lun->lun_se_dev;
- struct se_port *sep;
- struct se_hba *hba;
- ssize_t ret;
+ struct se_device *dev;
+ ssize_t ret = -ENODEV;
- spin_lock(&lun->lun_sep_lock);
- sep = lun->lun_sep;
- if (!sep) {
- spin_unlock(&lun->lun_sep_lock);
- return -ENODEV;
- }
- hba = dev->se_hba;
- ret = snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index);
- spin_unlock(&lun->lun_sep_lock);
+ rcu_read_lock();
+ dev = rcu_dereference(lun->lun_se_dev);
+ if (dev)
+ ret = snprintf(page, PAGE_SIZE, "%u\n", dev->hba_index);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_TGT_PORT_ATTR_RO(inst);
@@ -705,18 +676,14 @@
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
- struct se_device *dev = lun->lun_se_dev;
- struct se_port *sep;
- ssize_t ret;
+ struct se_device *dev;
+ ssize_t ret = -ENODEV;
- spin_lock(&lun->lun_sep_lock);
- sep = lun->lun_sep;
- if (!sep) {
- spin_unlock(&lun->lun_sep_lock);
- return -ENODEV;
- }
- ret = snprintf(page, PAGE_SIZE, "%u\n", dev->dev_index);
- spin_unlock(&lun->lun_sep_lock);
+ rcu_read_lock();
+ dev = rcu_dereference(lun->lun_se_dev);
+ if (dev)
+ ret = snprintf(page, PAGE_SIZE, "%u\n", dev->dev_index);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_TGT_PORT_ATTR_RO(dev);
@@ -725,17 +692,14 @@
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
- struct se_port *sep;
- ssize_t ret;
+ struct se_device *dev;
+ ssize_t ret = -ENODEV;
- spin_lock(&lun->lun_sep_lock);
- sep = lun->lun_sep;
- if (!sep) {
- spin_unlock(&lun->lun_sep_lock);
- return -ENODEV;
- }
- ret = snprintf(page, PAGE_SIZE, "%u\n", sep->sep_index);
- spin_unlock(&lun->lun_sep_lock);
+ rcu_read_lock();
+ dev = rcu_dereference(lun->lun_se_dev);
+ if (dev)
+ ret = snprintf(page, PAGE_SIZE, "%u\n", lun->lun_rtpi);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_TGT_PORT_ATTR_RO(indx);
@@ -744,21 +708,17 @@
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
- struct se_port *sep;
- struct se_portal_group *tpg;
- ssize_t ret;
+ struct se_portal_group *tpg = lun->lun_tpg;
+ struct se_device *dev;
+ ssize_t ret = -ENODEV;
- spin_lock(&lun->lun_sep_lock);
- sep = lun->lun_sep;
- if (!sep) {
- spin_unlock(&lun->lun_sep_lock);
- return -ENODEV;
- }
- tpg = sep->sep_tpg;
-
- ret = snprintf(page, PAGE_SIZE, "%sPort#%u\n",
- tpg->se_tpg_tfo->get_fabric_name(), sep->sep_index);
- spin_unlock(&lun->lun_sep_lock);
+ rcu_read_lock();
+ dev = rcu_dereference(lun->lun_se_dev);
+ if (dev)
+ ret = snprintf(page, PAGE_SIZE, "%sPort#%u\n",
+ tpg->se_tpg_tfo->get_fabric_name(),
+ lun->lun_rtpi);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_TGT_PORT_ATTR_RO(name);
@@ -767,22 +727,17 @@
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
- struct se_port *sep;
- struct se_portal_group *tpg;
- ssize_t ret;
+ struct se_portal_group *tpg = lun->lun_tpg;
+ struct se_device *dev;
+ ssize_t ret = -ENODEV;
- spin_lock(&lun->lun_sep_lock);
- sep = lun->lun_sep;
- if (!sep) {
- spin_unlock(&lun->lun_sep_lock);
- return -ENODEV;
- }
- tpg = sep->sep_tpg;
-
- ret = snprintf(page, PAGE_SIZE, "%s%s%d\n",
- tpg->se_tpg_tfo->tpg_get_wwn(tpg), "+t+",
- tpg->se_tpg_tfo->tpg_get_tag(tpg));
- spin_unlock(&lun->lun_sep_lock);
+ rcu_read_lock();
+ dev = rcu_dereference(lun->lun_se_dev);
+ if (dev)
+ ret = snprintf(page, PAGE_SIZE, "%s%s%d\n",
+ tpg->se_tpg_tfo->tpg_get_wwn(tpg), "+t+",
+ tpg->se_tpg_tfo->tpg_get_tag(tpg));
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_TGT_PORT_ATTR_RO(port_index);
@@ -791,18 +746,15 @@
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
- struct se_port *sep;
- ssize_t ret;
+ struct se_device *dev;
+ ssize_t ret = -ENODEV;
- spin_lock(&lun->lun_sep_lock);
- sep = lun->lun_sep;
- if (!sep) {
- spin_unlock(&lun->lun_sep_lock);
- return -ENODEV;
- }
-
- ret = snprintf(page, PAGE_SIZE, "%llu\n", sep->sep_stats.cmd_pdus);
- spin_unlock(&lun->lun_sep_lock);
+ rcu_read_lock();
+ dev = rcu_dereference(lun->lun_se_dev);
+ if (dev)
+ ret = snprintf(page, PAGE_SIZE, "%lu\n",
+ atomic_long_read(&lun->lun_stats.cmd_pdus));
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_TGT_PORT_ATTR_RO(in_cmds);
@@ -811,19 +763,15 @@
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
- struct se_port *sep;
- ssize_t ret;
+ struct se_device *dev;
+ ssize_t ret = -ENODEV;
- spin_lock(&lun->lun_sep_lock);
- sep = lun->lun_sep;
- if (!sep) {
- spin_unlock(&lun->lun_sep_lock);
- return -ENODEV;
- }
-
- ret = snprintf(page, PAGE_SIZE, "%u\n",
- (u32)(sep->sep_stats.rx_data_octets >> 20));
- spin_unlock(&lun->lun_sep_lock);
+ rcu_read_lock();
+ dev = rcu_dereference(lun->lun_se_dev);
+ if (dev)
+ ret = snprintf(page, PAGE_SIZE, "%u\n",
+ (u32)(atomic_long_read(&lun->lun_stats.rx_data_octets) >> 20));
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_TGT_PORT_ATTR_RO(write_mbytes);
@@ -832,19 +780,15 @@
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
- struct se_port *sep;
- ssize_t ret;
+ struct se_device *dev;
+ ssize_t ret = -ENODEV;
- spin_lock(&lun->lun_sep_lock);
- sep = lun->lun_sep;
- if (!sep) {
- spin_unlock(&lun->lun_sep_lock);
- return -ENODEV;
- }
-
- ret = snprintf(page, PAGE_SIZE, "%u\n",
- (u32)(sep->sep_stats.tx_data_octets >> 20));
- spin_unlock(&lun->lun_sep_lock);
+ rcu_read_lock();
+ dev = rcu_dereference(lun->lun_se_dev);
+ if (dev)
+ ret = snprintf(page, PAGE_SIZE, "%u\n",
+ (u32)(atomic_long_read(&lun->lun_stats.tx_data_octets) >> 20));
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_TGT_PORT_ATTR_RO(read_mbytes);
@@ -853,19 +797,16 @@
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
- struct se_port *sep;
- ssize_t ret;
+ struct se_device *dev;
+ ssize_t ret = -ENODEV;
- spin_lock(&lun->lun_sep_lock);
- sep = lun->lun_sep;
- if (!sep) {
- spin_unlock(&lun->lun_sep_lock);
- return -ENODEV;
+ rcu_read_lock();
+ dev = rcu_dereference(lun->lun_se_dev);
+ if (dev) {
+ /* FIXME: scsiTgtPortHsInCommands */
+ ret = snprintf(page, PAGE_SIZE, "%u\n", 0);
}
-
- /* FIXME: scsiTgtPortHsInCommands */
- ret = snprintf(page, PAGE_SIZE, "%u\n", 0);
- spin_unlock(&lun->lun_sep_lock);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_TGT_PORT_ATTR_RO(hs_in_cmds);
@@ -919,21 +860,14 @@
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
- struct se_device *dev = lun->lun_se_dev;
- struct se_port *sep;
- struct se_hba *hba;
- ssize_t ret;
+ struct se_device *dev;
+ ssize_t ret = -ENODEV;
- spin_lock(&lun->lun_sep_lock);
- sep = lun->lun_sep;
- if (!sep) {
- spin_unlock(&lun->lun_sep_lock);
- return -ENODEV;
- }
-
- hba = dev->se_hba;
- ret = snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index);
- spin_unlock(&lun->lun_sep_lock);
+ rcu_read_lock();
+ dev = rcu_dereference(lun->lun_se_dev);
+ if (dev)
+ ret = snprintf(page, PAGE_SIZE, "%u\n", dev->hba_index);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_TRANSPORT_ATTR_RO(inst);
@@ -942,21 +876,18 @@
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
- struct se_port *sep;
- struct se_portal_group *tpg;
- ssize_t ret;
+ struct se_device *dev;
+ struct se_portal_group *tpg = lun->lun_tpg;
+ ssize_t ret = -ENODEV;
- spin_lock(&lun->lun_sep_lock);
- sep = lun->lun_sep;
- if (!sep) {
- spin_unlock(&lun->lun_sep_lock);
- return -ENODEV;
+ rcu_read_lock();
+ dev = rcu_dereference(lun->lun_se_dev);
+ if (dev) {
+ /* scsiTransportType */
+ ret = snprintf(page, PAGE_SIZE, "scsiTransport%s\n",
+ tpg->se_tpg_tfo->get_fabric_name());
}
- tpg = sep->sep_tpg;
- /* scsiTransportType */
- ret = snprintf(page, PAGE_SIZE, "scsiTransport%s\n",
- tpg->se_tpg_tfo->get_fabric_name());
- spin_unlock(&lun->lun_sep_lock);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_TRANSPORT_ATTR_RO(device);
@@ -965,20 +896,16 @@
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
- struct se_port *sep;
- struct se_portal_group *tpg;
- ssize_t ret;
+ struct se_device *dev;
+ struct se_portal_group *tpg = lun->lun_tpg;
+ ssize_t ret = -ENODEV;
- spin_lock(&lun->lun_sep_lock);
- sep = lun->lun_sep;
- if (!sep) {
- spin_unlock(&lun->lun_sep_lock);
- return -ENODEV;
- }
- tpg = sep->sep_tpg;
- ret = snprintf(page, PAGE_SIZE, "%u\n",
- tpg->se_tpg_tfo->tpg_get_inst_index(tpg));
- spin_unlock(&lun->lun_sep_lock);
+ rcu_read_lock();
+ dev = rcu_dereference(lun->lun_se_dev);
+ if (dev)
+ ret = snprintf(page, PAGE_SIZE, "%u\n",
+ tpg->se_tpg_tfo->tpg_get_inst_index(tpg));
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_TRANSPORT_ATTR_RO(indx);
@@ -987,26 +914,22 @@
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
- struct se_device *dev = lun->lun_se_dev;
- struct se_port *sep;
- struct se_portal_group *tpg;
+ struct se_device *dev;
+ struct se_portal_group *tpg = lun->lun_tpg;
struct t10_wwn *wwn;
- ssize_t ret;
+ ssize_t ret = -ENODEV;
- spin_lock(&lun->lun_sep_lock);
- sep = lun->lun_sep;
- if (!sep) {
- spin_unlock(&lun->lun_sep_lock);
- return -ENODEV;
+ rcu_read_lock();
+ dev = rcu_dereference(lun->lun_se_dev);
+ if (dev) {
+ wwn = &dev->t10_wwn;
+ /* scsiTransportDevName */
+ ret = snprintf(page, PAGE_SIZE, "%s+%s\n",
+ tpg->se_tpg_tfo->tpg_get_wwn(tpg),
+ (strlen(wwn->unit_serial)) ? wwn->unit_serial :
+ wwn->vendor);
}
- tpg = sep->sep_tpg;
- wwn = &dev->t10_wwn;
- /* scsiTransportDevName */
- ret = snprintf(page, PAGE_SIZE, "%s+%s\n",
- tpg->se_tpg_tfo->tpg_get_wwn(tpg),
- (strlen(wwn->unit_serial)) ? wwn->unit_serial :
- wwn->vendor);
- spin_unlock(&lun->lun_sep_lock);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_TRANSPORT_ATTR_RO(dev_name);
@@ -1082,17 +1005,17 @@
struct se_portal_group *tpg;
ssize_t ret;
- spin_lock_irq(&nacl->device_list_lock);
- deve = nacl->device_list[lacl->mapped_lun];
- if (!deve->se_lun || !deve->se_lun_acl) {
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
+ if (!deve) {
+ rcu_read_unlock();
return -ENODEV;
}
tpg = nacl->se_tpg;
/* scsiInstIndex */
ret = snprintf(page, PAGE_SIZE, "%u\n",
tpg->se_tpg_tfo->tpg_get_inst_index(tpg));
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(inst);
@@ -1107,16 +1030,16 @@
struct se_lun *lun;
ssize_t ret;
- spin_lock_irq(&nacl->device_list_lock);
- deve = nacl->device_list[lacl->mapped_lun];
- if (!deve->se_lun || !deve->se_lun_acl) {
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
+ if (!deve) {
+ rcu_read_unlock();
return -ENODEV;
}
- lun = deve->se_lun;
+ lun = rcu_dereference(deve->se_lun);
/* scsiDeviceIndex */
- ret = snprintf(page, PAGE_SIZE, "%u\n", lun->lun_se_dev->dev_index);
- spin_unlock_irq(&nacl->device_list_lock);
+ ret = snprintf(page, PAGE_SIZE, "%u\n", lun->lun_index);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(dev);
@@ -1131,16 +1054,16 @@
struct se_portal_group *tpg;
ssize_t ret;
- spin_lock_irq(&nacl->device_list_lock);
- deve = nacl->device_list[lacl->mapped_lun];
- if (!deve->se_lun || !deve->se_lun_acl) {
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
+ if (!deve) {
+ rcu_read_unlock();
return -ENODEV;
}
tpg = nacl->se_tpg;
/* scsiAuthIntrTgtPortIndex */
ret = snprintf(page, PAGE_SIZE, "%u\n", tpg->se_tpg_tfo->tpg_get_tag(tpg));
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(port);
@@ -1154,15 +1077,15 @@
struct se_dev_entry *deve;
ssize_t ret;
- spin_lock_irq(&nacl->device_list_lock);
- deve = nacl->device_list[lacl->mapped_lun];
- if (!deve->se_lun || !deve->se_lun_acl) {
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
+ if (!deve) {
+ rcu_read_unlock();
return -ENODEV;
}
/* scsiAuthIntrIndex */
ret = snprintf(page, PAGE_SIZE, "%u\n", nacl->acl_index);
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(indx);
@@ -1176,15 +1099,15 @@
struct se_dev_entry *deve;
ssize_t ret;
- spin_lock_irq(&nacl->device_list_lock);
- deve = nacl->device_list[lacl->mapped_lun];
- if (!deve->se_lun || !deve->se_lun_acl) {
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
+ if (!deve) {
+ rcu_read_unlock();
return -ENODEV;
}
/* scsiAuthIntrDevOrPort */
ret = snprintf(page, PAGE_SIZE, "%u\n", 1);
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(dev_or_port);
@@ -1198,15 +1121,15 @@
struct se_dev_entry *deve;
ssize_t ret;
- spin_lock_irq(&nacl->device_list_lock);
- deve = nacl->device_list[lacl->mapped_lun];
- if (!deve->se_lun || !deve->se_lun_acl) {
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
+ if (!deve) {
+ rcu_read_unlock();
return -ENODEV;
}
/* scsiAuthIntrName */
ret = snprintf(page, PAGE_SIZE, "%s\n", nacl->initiatorname);
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(intr_name);
@@ -1220,15 +1143,15 @@
struct se_dev_entry *deve;
ssize_t ret;
- spin_lock_irq(&nacl->device_list_lock);
- deve = nacl->device_list[lacl->mapped_lun];
- if (!deve->se_lun || !deve->se_lun_acl) {
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
+ if (!deve) {
+ rcu_read_unlock();
return -ENODEV;
}
/* FIXME: scsiAuthIntrLunMapIndex */
ret = snprintf(page, PAGE_SIZE, "%u\n", 0);
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(map_indx);
@@ -1242,15 +1165,15 @@
struct se_dev_entry *deve;
ssize_t ret;
- spin_lock_irq(&nacl->device_list_lock);
- deve = nacl->device_list[lacl->mapped_lun];
- if (!deve->se_lun || !deve->se_lun_acl) {
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
+ if (!deve) {
+ rcu_read_unlock();
return -ENODEV;
}
/* scsiAuthIntrAttachedTimes */
ret = snprintf(page, PAGE_SIZE, "%u\n", deve->attach_count);
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(att_count);
@@ -1264,15 +1187,16 @@
struct se_dev_entry *deve;
ssize_t ret;
- spin_lock_irq(&nacl->device_list_lock);
- deve = nacl->device_list[lacl->mapped_lun];
- if (!deve->se_lun || !deve->se_lun_acl) {
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
+ if (!deve) {
+ rcu_read_unlock();
return -ENODEV;
}
/* scsiAuthIntrOutCommands */
- ret = snprintf(page, PAGE_SIZE, "%u\n", deve->total_cmds);
- spin_unlock_irq(&nacl->device_list_lock);
+ ret = snprintf(page, PAGE_SIZE, "%lu\n",
+ atomic_long_read(&deve->total_cmds));
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(num_cmds);
@@ -1286,15 +1210,16 @@
struct se_dev_entry *deve;
ssize_t ret;
- spin_lock_irq(&nacl->device_list_lock);
- deve = nacl->device_list[lacl->mapped_lun];
- if (!deve->se_lun || !deve->se_lun_acl) {
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
+ if (!deve) {
+ rcu_read_unlock();
return -ENODEV;
}
/* scsiAuthIntrReadMegaBytes */
- ret = snprintf(page, PAGE_SIZE, "%u\n", (u32)(deve->read_bytes >> 20));
- spin_unlock_irq(&nacl->device_list_lock);
+ ret = snprintf(page, PAGE_SIZE, "%u\n",
+ (u32)(atomic_long_read(&deve->read_bytes) >> 20));
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(read_mbytes);
@@ -1308,15 +1233,16 @@
struct se_dev_entry *deve;
ssize_t ret;
- spin_lock_irq(&nacl->device_list_lock);
- deve = nacl->device_list[lacl->mapped_lun];
- if (!deve->se_lun || !deve->se_lun_acl) {
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
+ if (!deve) {
+ rcu_read_unlock();
return -ENODEV;
}
/* scsiAuthIntrWrittenMegaBytes */
- ret = snprintf(page, PAGE_SIZE, "%u\n", (u32)(deve->write_bytes >> 20));
- spin_unlock_irq(&nacl->device_list_lock);
+ ret = snprintf(page, PAGE_SIZE, "%u\n",
+ (u32)(atomic_long_read(&deve->write_bytes) >> 20));
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(write_mbytes);
@@ -1330,15 +1256,15 @@
struct se_dev_entry *deve;
ssize_t ret;
- spin_lock_irq(&nacl->device_list_lock);
- deve = nacl->device_list[lacl->mapped_lun];
- if (!deve->se_lun || !deve->se_lun_acl) {
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
+ if (!deve) {
+ rcu_read_unlock();
return -ENODEV;
}
/* FIXME: scsiAuthIntrHSOutCommands */
ret = snprintf(page, PAGE_SIZE, "%u\n", 0);
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(hs_num_cmds);
@@ -1352,16 +1278,16 @@
struct se_dev_entry *deve;
ssize_t ret;
- spin_lock_irq(&nacl->device_list_lock);
- deve = nacl->device_list[lacl->mapped_lun];
- if (!deve->se_lun || !deve->se_lun_acl) {
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
+ if (!deve) {
+ rcu_read_unlock();
return -ENODEV;
}
/* scsiAuthIntrLastCreation */
ret = snprintf(page, PAGE_SIZE, "%u\n", (u32)(((u32)deve->creation_time -
INITIAL_JIFFIES) * 100 / HZ));
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(creation_time);
@@ -1375,15 +1301,15 @@
struct se_dev_entry *deve;
ssize_t ret;
- spin_lock_irq(&nacl->device_list_lock);
- deve = nacl->device_list[lacl->mapped_lun];
- if (!deve->se_lun || !deve->se_lun_acl) {
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
+ if (!deve) {
+ rcu_read_unlock();
return -ENODEV;
}
/* FIXME: scsiAuthIntrRowStatus */
ret = snprintf(page, PAGE_SIZE, "Ready\n");
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(row_status);
@@ -1448,17 +1374,17 @@
struct se_portal_group *tpg;
ssize_t ret;
- spin_lock_irq(&nacl->device_list_lock);
- deve = nacl->device_list[lacl->mapped_lun];
- if (!deve->se_lun || !deve->se_lun_acl) {
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
+ if (!deve) {
+ rcu_read_unlock();
return -ENODEV;
}
tpg = nacl->se_tpg;
/* scsiInstIndex */
ret = snprintf(page, PAGE_SIZE, "%u\n",
tpg->se_tpg_tfo->tpg_get_inst_index(tpg));
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(inst);
@@ -1473,16 +1399,16 @@
struct se_lun *lun;
ssize_t ret;
- spin_lock_irq(&nacl->device_list_lock);
- deve = nacl->device_list[lacl->mapped_lun];
- if (!deve->se_lun || !deve->se_lun_acl) {
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
+ if (!deve) {
+ rcu_read_unlock();
return -ENODEV;
}
- lun = deve->se_lun;
+ lun = rcu_dereference(deve->se_lun);
/* scsiDeviceIndex */
- ret = snprintf(page, PAGE_SIZE, "%u\n", lun->lun_se_dev->dev_index);
- spin_unlock_irq(&nacl->device_list_lock);
+ ret = snprintf(page, PAGE_SIZE, "%u\n", lun->lun_index);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(dev);
@@ -1497,16 +1423,16 @@
struct se_portal_group *tpg;
ssize_t ret;
- spin_lock_irq(&nacl->device_list_lock);
- deve = nacl->device_list[lacl->mapped_lun];
- if (!deve->se_lun || !deve->se_lun_acl) {
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
+ if (!deve) {
+ rcu_read_unlock();
return -ENODEV;
}
tpg = nacl->se_tpg;
/* scsiPortIndex */
ret = snprintf(page, PAGE_SIZE, "%u\n", tpg->se_tpg_tfo->tpg_get_tag(tpg));
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(port);
@@ -1546,15 +1472,15 @@
struct se_dev_entry *deve;
ssize_t ret;
- spin_lock_irq(&nacl->device_list_lock);
- deve = nacl->device_list[lacl->mapped_lun];
- if (!deve->se_lun || !deve->se_lun_acl) {
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
+ if (!deve) {
+ rcu_read_unlock();
return -ENODEV;
}
/* scsiAttIntrPortAuthIntrIdx */
ret = snprintf(page, PAGE_SIZE, "%u\n", nacl->acl_index);
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(port_auth_indx);
diff --git a/drivers/target/target_core_tmr.c b/drivers/target/target_core_tmr.c
index a5bb0c4..5b28203 100644
--- a/drivers/target/target_core_tmr.c
+++ b/drivers/target/target_core_tmr.c
@@ -31,7 +31,6 @@
#include <target/target_core_base.h>
#include <target/target_core_backend.h>
#include <target/target_core_fabric.h>
-#include <target/target_core_configfs.h>
#include "target_core_internal.h"
#include "target_core_alua.h"
@@ -115,7 +114,7 @@
{
struct se_cmd *se_cmd;
unsigned long flags;
- int ref_tag;
+ u64 ref_tag;
spin_lock_irqsave(&se_sess->sess_cmd_lock, flags);
list_for_each_entry(se_cmd, &se_sess->sess_cmd_list, se_cmd_list) {
@@ -127,16 +126,17 @@
if (se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)
continue;
- ref_tag = se_cmd->se_tfo->get_task_tag(se_cmd);
+ ref_tag = se_cmd->tag;
if (tmr->ref_task_tag != ref_tag)
continue;
- printk("ABORT_TASK: Found referenced %s task_tag: %u\n",
+ printk("ABORT_TASK: Found referenced %s task_tag: %llu\n",
se_cmd->se_tfo->get_fabric_name(), ref_tag);
spin_lock(&se_cmd->t_state_lock);
if (se_cmd->transport_state & CMD_T_COMPLETE) {
- printk("ABORT_TASK: ref_tag: %u already complete, skipping\n", ref_tag);
+ printk("ABORT_TASK: ref_tag: %llu already complete,"
+ " skipping\n", ref_tag);
spin_unlock(&se_cmd->t_state_lock);
spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
goto out;
@@ -151,18 +151,18 @@
cancel_work_sync(&se_cmd->work);
transport_wait_for_tasks(se_cmd);
- target_put_sess_cmd(se_sess, se_cmd);
+ target_put_sess_cmd(se_cmd);
transport_cmd_finish_abort(se_cmd, true);
printk("ABORT_TASK: Sending TMR_FUNCTION_COMPLETE for"
- " ref_tag: %d\n", ref_tag);
+ " ref_tag: %llu\n", ref_tag);
tmr->response = TMR_FUNCTION_COMPLETE;
return;
}
spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
out:
- printk("ABORT_TASK: Sending TMR_TASK_DOES_NOT_EXIST for ref_tag: %d\n",
+ printk("ABORT_TASK: Sending TMR_TASK_DOES_NOT_EXIST for ref_tag: %lld\n",
tmr->ref_task_tag);
tmr->response = TMR_TASK_DOES_NOT_EXIST;
}
@@ -287,16 +287,16 @@
list_del(&cmd->state_list);
pr_debug("LUN_RESET: %s cmd: %p"
- " ITT/CmdSN: 0x%08x/0x%08x, i_state: %d, t_state: %d"
+ " ITT/CmdSN: 0x%08llx/0x%08x, i_state: %d, t_state: %d"
"cdb: 0x%02x\n",
(preempt_and_abort_list) ? "Preempt" : "", cmd,
- cmd->se_tfo->get_task_tag(cmd), 0,
+ cmd->tag, 0,
cmd->se_tfo->get_cmd_state(cmd), cmd->t_state,
cmd->t_task_cdb[0]);
- pr_debug("LUN_RESET: ITT[0x%08x] - pr_res_key: 0x%016Lx"
+ pr_debug("LUN_RESET: ITT[0x%08llx] - pr_res_key: 0x%016Lx"
" -- CMD_T_ACTIVE: %d"
" CMD_T_STOP: %d CMD_T_SENT: %d\n",
- cmd->se_tfo->get_task_tag(cmd), cmd->pr_res_key,
+ cmd->tag, cmd->pr_res_key,
(cmd->transport_state & CMD_T_ACTIVE) != 0,
(cmd->transport_state & CMD_T_STOP) != 0,
(cmd->transport_state & CMD_T_SENT) != 0);
diff --git a/drivers/target/target_core_tpg.c b/drivers/target/target_core_tpg.c
index 84de757..babde4a 100644
--- a/drivers/target/target_core_tpg.c
+++ b/drivers/target/target_core_tpg.c
@@ -39,6 +39,7 @@
#include <target/target_core_fabric.h>
#include "target_core_internal.h"
+#include "target_core_alua.h"
#include "target_core_pr.h"
extern struct se_device *g_lun0_dev;
@@ -46,45 +47,9 @@
static DEFINE_SPINLOCK(tpg_lock);
static LIST_HEAD(tpg_list);
-/* core_clear_initiator_node_from_tpg():
- *
- *
- */
-static void core_clear_initiator_node_from_tpg(
- struct se_node_acl *nacl,
- struct se_portal_group *tpg)
-{
- int i;
- struct se_dev_entry *deve;
- struct se_lun *lun;
-
- spin_lock_irq(&nacl->device_list_lock);
- for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) {
- deve = nacl->device_list[i];
-
- if (!(deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS))
- continue;
-
- if (!deve->se_lun) {
- pr_err("%s device entries device pointer is"
- " NULL, but Initiator has access.\n",
- tpg->se_tpg_tfo->get_fabric_name());
- continue;
- }
-
- lun = deve->se_lun;
- spin_unlock_irq(&nacl->device_list_lock);
- core_disable_device_list_for_node(lun, NULL, deve->mapped_lun,
- TRANSPORT_LUNFLAGS_NO_ACCESS, nacl, tpg);
-
- spin_lock_irq(&nacl->device_list_lock);
- }
- spin_unlock_irq(&nacl->device_list_lock);
-}
-
/* __core_tpg_get_initiator_node_acl():
*
- * spin_lock_bh(&tpg->acl_node_lock); must be held when calling
+ * mutex_lock(&tpg->acl_node_mutex); must be held when calling
*/
struct se_node_acl *__core_tpg_get_initiator_node_acl(
struct se_portal_group *tpg,
@@ -110,9 +75,9 @@
{
struct se_node_acl *acl;
- spin_lock_irq(&tpg->acl_node_lock);
+ mutex_lock(&tpg->acl_node_mutex);
acl = __core_tpg_get_initiator_node_acl(tpg, initiatorname);
- spin_unlock_irq(&tpg->acl_node_lock);
+ mutex_unlock(&tpg->acl_node_mutex);
return acl;
}
@@ -124,22 +89,20 @@
*/
void core_tpg_add_node_to_devs(
struct se_node_acl *acl,
- struct se_portal_group *tpg)
+ struct se_portal_group *tpg,
+ struct se_lun *lun_orig)
{
- int i = 0;
u32 lun_access = 0;
struct se_lun *lun;
struct se_device *dev;
- spin_lock(&tpg->tpg_lun_lock);
- for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) {
- lun = tpg->tpg_lun_list[i];
- if (lun->lun_status != TRANSPORT_LUN_STATUS_ACTIVE)
+ mutex_lock(&tpg->tpg_lun_mutex);
+ hlist_for_each_entry_rcu(lun, &tpg->tpg_lun_hlist, link) {
+ if (lun_orig && lun != lun_orig)
continue;
- spin_unlock(&tpg->tpg_lun_lock);
-
- dev = lun->lun_se_dev;
+ dev = rcu_dereference_check(lun->lun_se_dev,
+ lockdep_is_held(&tpg->tpg_lun_mutex));
/*
* By default in LIO-Target $FABRIC_MOD,
* demo_mode_write_protect is ON, or READ_ONLY;
@@ -157,7 +120,7 @@
lun_access = TRANSPORT_LUNFLAGS_READ_WRITE;
}
- pr_debug("TARGET_CORE[%s]->TPG[%u]_LUN[%u] - Adding %s"
+ pr_debug("TARGET_CORE[%s]->TPG[%u]_LUN[%llu] - Adding %s"
" access for LUN in Demo Mode\n",
tpg->se_tpg_tfo->get_fabric_name(),
tpg->se_tpg_tfo->tpg_get_tag(tpg), lun->unpacked_lun,
@@ -165,7 +128,7 @@
"READ-WRITE" : "READ-ONLY");
core_enable_device_list_for_node(lun, NULL, lun->unpacked_lun,
- lun_access, acl, tpg);
+ lun_access, acl, tpg);
/*
* Check to see if there are any existing persistent reservation
* APTPL pre-registrations that need to be enabled for this dynamic
@@ -173,9 +136,8 @@
*/
core_scsi3_check_aptpl_registration(dev, tpg, lun, acl,
lun->unpacked_lun);
- spin_lock(&tpg->tpg_lun_lock);
}
- spin_unlock(&tpg->tpg_lun_lock);
+ mutex_unlock(&tpg->tpg_lun_mutex);
}
/* core_set_queue_depth_for_node():
@@ -196,67 +158,63 @@
return 0;
}
-void array_free(void *array, int n)
+static struct se_node_acl *target_alloc_node_acl(struct se_portal_group *tpg,
+ const unsigned char *initiatorname)
{
- void **a = array;
- int i;
+ struct se_node_acl *acl;
- for (i = 0; i < n; i++)
- kfree(a[i]);
- kfree(a);
-}
-
-static void *array_zalloc(int n, size_t size, gfp_t flags)
-{
- void **a;
- int i;
-
- a = kzalloc(n * sizeof(void*), flags);
- if (!a)
+ acl = kzalloc(max(sizeof(*acl), tpg->se_tpg_tfo->node_acl_size),
+ GFP_KERNEL);
+ if (!acl)
return NULL;
- for (i = 0; i < n; i++) {
- a[i] = kzalloc(size, flags);
- if (!a[i]) {
- array_free(a, n);
- return NULL;
- }
- }
- return a;
+
+ INIT_LIST_HEAD(&acl->acl_list);
+ INIT_LIST_HEAD(&acl->acl_sess_list);
+ INIT_HLIST_HEAD(&acl->lun_entry_hlist);
+ kref_init(&acl->acl_kref);
+ init_completion(&acl->acl_free_comp);
+ spin_lock_init(&acl->nacl_sess_lock);
+ mutex_init(&acl->lun_entry_mutex);
+ atomic_set(&acl->acl_pr_ref_count, 0);
+ if (tpg->se_tpg_tfo->tpg_get_default_depth)
+ acl->queue_depth = tpg->se_tpg_tfo->tpg_get_default_depth(tpg);
+ else
+ acl->queue_depth = 1;
+ snprintf(acl->initiatorname, TRANSPORT_IQN_LEN, "%s", initiatorname);
+ acl->se_tpg = tpg;
+ acl->acl_index = scsi_get_new_index(SCSI_AUTH_INTR_INDEX);
+
+ tpg->se_tpg_tfo->set_default_node_attributes(acl);
+
+ if (core_set_queue_depth_for_node(tpg, acl) < 0)
+ goto out_free_acl;
+
+ return acl;
+
+out_free_acl:
+ kfree(acl);
+ return NULL;
}
-/* core_create_device_list_for_node():
- *
- *
- */
-static int core_create_device_list_for_node(struct se_node_acl *nacl)
+static void target_add_node_acl(struct se_node_acl *acl)
{
- struct se_dev_entry *deve;
- int i;
+ struct se_portal_group *tpg = acl->se_tpg;
- nacl->device_list = array_zalloc(TRANSPORT_MAX_LUNS_PER_TPG,
- sizeof(struct se_dev_entry), GFP_KERNEL);
- if (!nacl->device_list) {
- pr_err("Unable to allocate memory for"
- " struct se_node_acl->device_list\n");
- return -ENOMEM;
- }
- for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) {
- deve = nacl->device_list[i];
+ mutex_lock(&tpg->acl_node_mutex);
+ list_add_tail(&acl->acl_list, &tpg->acl_node_list);
+ tpg->num_node_acls++;
+ mutex_unlock(&tpg->acl_node_mutex);
- atomic_set(&deve->ua_count, 0);
- atomic_set(&deve->pr_ref_count, 0);
- spin_lock_init(&deve->ua_lock);
- INIT_LIST_HEAD(&deve->alua_port_list);
- INIT_LIST_HEAD(&deve->ua_list);
- }
-
- return 0;
+ pr_debug("%s_TPG[%hu] - Added %s ACL with TCQ Depth: %d for %s"
+ " Initiator Node: %s\n",
+ tpg->se_tpg_tfo->get_fabric_name(),
+ tpg->se_tpg_tfo->tpg_get_tag(tpg),
+ acl->dynamic_node_acl ? "DYNAMIC" : "",
+ acl->queue_depth,
+ tpg->se_tpg_tfo->get_fabric_name(),
+ acl->initiatorname);
}
-/* core_tpg_check_initiator_node_acl()
- *
- *
- */
struct se_node_acl *core_tpg_check_initiator_node_acl(
struct se_portal_group *tpg,
unsigned char *initiatorname)
@@ -270,35 +228,11 @@
if (!tpg->se_tpg_tfo->tpg_check_demo_mode(tpg))
return NULL;
- acl = tpg->se_tpg_tfo->tpg_alloc_fabric_acl(tpg);
+ acl = target_alloc_node_acl(tpg, initiatorname);
if (!acl)
return NULL;
-
- INIT_LIST_HEAD(&acl->acl_list);
- INIT_LIST_HEAD(&acl->acl_sess_list);
- kref_init(&acl->acl_kref);
- init_completion(&acl->acl_free_comp);
- spin_lock_init(&acl->device_list_lock);
- spin_lock_init(&acl->nacl_sess_lock);
- atomic_set(&acl->acl_pr_ref_count, 0);
- acl->queue_depth = tpg->se_tpg_tfo->tpg_get_default_depth(tpg);
- snprintf(acl->initiatorname, TRANSPORT_IQN_LEN, "%s", initiatorname);
- acl->se_tpg = tpg;
- acl->acl_index = scsi_get_new_index(SCSI_AUTH_INTR_INDEX);
acl->dynamic_node_acl = 1;
- tpg->se_tpg_tfo->set_default_node_attributes(acl);
-
- if (core_create_device_list_for_node(acl) < 0) {
- tpg->se_tpg_tfo->tpg_release_fabric_acl(tpg, acl);
- return NULL;
- }
-
- if (core_set_queue_depth_for_node(tpg, acl) < 0) {
- core_free_device_list_for_node(acl, tpg);
- tpg->se_tpg_tfo->tpg_release_fabric_acl(tpg, acl);
- return NULL;
- }
/*
* Here we only create demo-mode MappedLUNs from the active
* TPG LUNs if the fabric is not explicitly asking for
@@ -306,18 +240,9 @@
*/
if ((tpg->se_tpg_tfo->tpg_check_demo_mode_login_only == NULL) ||
(tpg->se_tpg_tfo->tpg_check_demo_mode_login_only(tpg) != 1))
- core_tpg_add_node_to_devs(acl, tpg);
+ core_tpg_add_node_to_devs(acl, tpg, NULL);
- spin_lock_irq(&tpg->acl_node_lock);
- list_add_tail(&acl->acl_list, &tpg->acl_node_list);
- tpg->num_node_acls++;
- spin_unlock_irq(&tpg->acl_node_lock);
-
- pr_debug("%s_TPG[%u] - Added DYNAMIC ACL with TCQ Depth: %d for %s"
- " Initiator Node: %s\n", tpg->se_tpg_tfo->get_fabric_name(),
- tpg->se_tpg_tfo->tpg_get_tag(tpg), acl->queue_depth,
- tpg->se_tpg_tfo->get_fabric_name(), initiatorname);
-
+ target_add_node_acl(acl);
return acl;
}
EXPORT_SYMBOL(core_tpg_check_initiator_node_acl);
@@ -328,40 +253,13 @@
cpu_relax();
}
-void core_tpg_clear_object_luns(struct se_portal_group *tpg)
-{
- int i;
- struct se_lun *lun;
-
- spin_lock(&tpg->tpg_lun_lock);
- for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) {
- lun = tpg->tpg_lun_list[i];
-
- if ((lun->lun_status != TRANSPORT_LUN_STATUS_ACTIVE) ||
- (lun->lun_se_dev == NULL))
- continue;
-
- spin_unlock(&tpg->tpg_lun_lock);
- core_dev_del_lun(tpg, lun);
- spin_lock(&tpg->tpg_lun_lock);
- }
- spin_unlock(&tpg->tpg_lun_lock);
-}
-EXPORT_SYMBOL(core_tpg_clear_object_luns);
-
-/* core_tpg_add_initiator_node_acl():
- *
- *
- */
struct se_node_acl *core_tpg_add_initiator_node_acl(
struct se_portal_group *tpg,
- struct se_node_acl *se_nacl,
- const char *initiatorname,
- u32 queue_depth)
+ const char *initiatorname)
{
- struct se_node_acl *acl = NULL;
+ struct se_node_acl *acl;
- spin_lock_irq(&tpg->acl_node_lock);
+ mutex_lock(&tpg->acl_node_mutex);
acl = __core_tpg_get_initiator_node_acl(tpg, initiatorname);
if (acl) {
if (acl->dynamic_node_acl) {
@@ -369,99 +267,42 @@
pr_debug("%s_TPG[%u] - Replacing dynamic ACL"
" for %s\n", tpg->se_tpg_tfo->get_fabric_name(),
tpg->se_tpg_tfo->tpg_get_tag(tpg), initiatorname);
- spin_unlock_irq(&tpg->acl_node_lock);
- /*
- * Release the locally allocated struct se_node_acl
- * because * core_tpg_add_initiator_node_acl() returned
- * a pointer to an existing demo mode node ACL.
- */
- if (se_nacl)
- tpg->se_tpg_tfo->tpg_release_fabric_acl(tpg,
- se_nacl);
- goto done;
+ mutex_unlock(&tpg->acl_node_mutex);
+ return acl;
}
pr_err("ACL entry for %s Initiator"
" Node %s already exists for TPG %u, ignoring"
" request.\n", tpg->se_tpg_tfo->get_fabric_name(),
initiatorname, tpg->se_tpg_tfo->tpg_get_tag(tpg));
- spin_unlock_irq(&tpg->acl_node_lock);
+ mutex_unlock(&tpg->acl_node_mutex);
return ERR_PTR(-EEXIST);
}
- spin_unlock_irq(&tpg->acl_node_lock);
+ mutex_unlock(&tpg->acl_node_mutex);
- if (!se_nacl) {
- pr_err("struct se_node_acl pointer is NULL\n");
- return ERR_PTR(-EINVAL);
- }
- /*
- * For v4.x logic the se_node_acl_s is hanging off a fabric
- * dependent structure allocated via
- * struct target_core_fabric_ops->fabric_make_nodeacl()
- */
- acl = se_nacl;
-
- INIT_LIST_HEAD(&acl->acl_list);
- INIT_LIST_HEAD(&acl->acl_sess_list);
- kref_init(&acl->acl_kref);
- init_completion(&acl->acl_free_comp);
- spin_lock_init(&acl->device_list_lock);
- spin_lock_init(&acl->nacl_sess_lock);
- atomic_set(&acl->acl_pr_ref_count, 0);
- acl->queue_depth = queue_depth;
- snprintf(acl->initiatorname, TRANSPORT_IQN_LEN, "%s", initiatorname);
- acl->se_tpg = tpg;
- acl->acl_index = scsi_get_new_index(SCSI_AUTH_INTR_INDEX);
-
- tpg->se_tpg_tfo->set_default_node_attributes(acl);
-
- if (core_create_device_list_for_node(acl) < 0) {
- tpg->se_tpg_tfo->tpg_release_fabric_acl(tpg, acl);
+ acl = target_alloc_node_acl(tpg, initiatorname);
+ if (!acl)
return ERR_PTR(-ENOMEM);
- }
- if (core_set_queue_depth_for_node(tpg, acl) < 0) {
- core_free_device_list_for_node(acl, tpg);
- tpg->se_tpg_tfo->tpg_release_fabric_acl(tpg, acl);
- return ERR_PTR(-EINVAL);
- }
-
- spin_lock_irq(&tpg->acl_node_lock);
- list_add_tail(&acl->acl_list, &tpg->acl_node_list);
- tpg->num_node_acls++;
- spin_unlock_irq(&tpg->acl_node_lock);
-
-done:
- pr_debug("%s_TPG[%hu] - Added ACL with TCQ Depth: %d for %s"
- " Initiator Node: %s\n", tpg->se_tpg_tfo->get_fabric_name(),
- tpg->se_tpg_tfo->tpg_get_tag(tpg), acl->queue_depth,
- tpg->se_tpg_tfo->get_fabric_name(), initiatorname);
-
+ target_add_node_acl(acl);
return acl;
}
-EXPORT_SYMBOL(core_tpg_add_initiator_node_acl);
-/* core_tpg_del_initiator_node_acl():
- *
- *
- */
-int core_tpg_del_initiator_node_acl(
- struct se_portal_group *tpg,
- struct se_node_acl *acl,
- int force)
+void core_tpg_del_initiator_node_acl(struct se_node_acl *acl)
{
+ struct se_portal_group *tpg = acl->se_tpg;
LIST_HEAD(sess_list);
struct se_session *sess, *sess_tmp;
unsigned long flags;
int rc;
- spin_lock_irq(&tpg->acl_node_lock);
+ mutex_lock(&tpg->acl_node_mutex);
if (acl->dynamic_node_acl) {
acl->dynamic_node_acl = 0;
}
list_del(&acl->acl_list);
tpg->num_node_acls--;
- spin_unlock_irq(&tpg->acl_node_lock);
+ mutex_unlock(&tpg->acl_node_mutex);
spin_lock_irqsave(&acl->nacl_sess_lock, flags);
acl->acl_stop = 1;
@@ -493,7 +334,6 @@
wait_for_completion(&acl->acl_free_comp);
core_tpg_wait_for_nacl_pr_ref(acl);
- core_clear_initiator_node_from_tpg(acl, tpg);
core_free_device_list_for_node(acl, tpg);
pr_debug("%s_TPG[%hu] - Deleted ACL with TCQ Depth: %d for %s"
@@ -501,9 +341,8 @@
tpg->se_tpg_tfo->tpg_get_tag(tpg), acl->queue_depth,
tpg->se_tpg_tfo->get_fabric_name(), acl->initiatorname);
- return 0;
+ kfree(acl);
}
-EXPORT_SYMBOL(core_tpg_del_initiator_node_acl);
/* core_tpg_set_initiator_node_queue_depth():
*
@@ -520,21 +359,21 @@
unsigned long flags;
int dynamic_acl = 0;
- spin_lock_irq(&tpg->acl_node_lock);
+ mutex_lock(&tpg->acl_node_mutex);
acl = __core_tpg_get_initiator_node_acl(tpg, initiatorname);
if (!acl) {
pr_err("Access Control List entry for %s Initiator"
" Node %s does not exists for TPG %hu, ignoring"
" request.\n", tpg->se_tpg_tfo->get_fabric_name(),
initiatorname, tpg->se_tpg_tfo->tpg_get_tag(tpg));
- spin_unlock_irq(&tpg->acl_node_lock);
+ mutex_unlock(&tpg->acl_node_mutex);
return -ENODEV;
}
if (acl->dynamic_node_acl) {
acl->dynamic_node_acl = 0;
dynamic_acl = 1;
}
- spin_unlock_irq(&tpg->acl_node_lock);
+ mutex_unlock(&tpg->acl_node_mutex);
spin_lock_irqsave(&tpg->session_lock, flags);
list_for_each_entry(sess, &tpg->tpg_sess_list, sess_list) {
@@ -550,10 +389,10 @@
tpg->se_tpg_tfo->get_fabric_name(), initiatorname);
spin_unlock_irqrestore(&tpg->session_lock, flags);
- spin_lock_irq(&tpg->acl_node_lock);
+ mutex_lock(&tpg->acl_node_mutex);
if (dynamic_acl)
acl->dynamic_node_acl = 1;
- spin_unlock_irq(&tpg->acl_node_lock);
+ mutex_unlock(&tpg->acl_node_mutex);
return -EEXIST;
}
/*
@@ -588,10 +427,10 @@
if (init_sess)
tpg->se_tpg_tfo->close_session(init_sess);
- spin_lock_irq(&tpg->acl_node_lock);
+ mutex_lock(&tpg->acl_node_mutex);
if (dynamic_acl)
acl->dynamic_node_acl = 1;
- spin_unlock_irq(&tpg->acl_node_lock);
+ mutex_unlock(&tpg->acl_node_mutex);
return -EINVAL;
}
spin_unlock_irqrestore(&tpg->session_lock, flags);
@@ -607,10 +446,10 @@
initiatorname, tpg->se_tpg_tfo->get_fabric_name(),
tpg->se_tpg_tfo->tpg_get_tag(tpg));
- spin_lock_irq(&tpg->acl_node_lock);
+ mutex_lock(&tpg->acl_node_mutex);
if (dynamic_acl)
acl->dynamic_node_acl = 1;
- spin_unlock_irq(&tpg->acl_node_lock);
+ mutex_unlock(&tpg->acl_node_mutex);
return 0;
}
@@ -646,78 +485,54 @@
complete(&lun->lun_ref_comp);
}
-static int core_tpg_setup_virtual_lun0(struct se_portal_group *se_tpg)
-{
- /* Set in core_dev_setup_virtual_lun0() */
- struct se_device *dev = g_lun0_dev;
- struct se_lun *lun = &se_tpg->tpg_virt_lun0;
- u32 lun_access = TRANSPORT_LUNFLAGS_READ_ONLY;
- int ret;
-
- lun->unpacked_lun = 0;
- lun->lun_status = TRANSPORT_LUN_STATUS_FREE;
- atomic_set(&lun->lun_acl_count, 0);
- init_completion(&lun->lun_shutdown_comp);
- INIT_LIST_HEAD(&lun->lun_acl_list);
- spin_lock_init(&lun->lun_acl_lock);
- spin_lock_init(&lun->lun_sep_lock);
- init_completion(&lun->lun_ref_comp);
-
- ret = core_tpg_add_lun(se_tpg, lun, lun_access, dev);
- if (ret < 0)
- return ret;
-
- return 0;
-}
-
int core_tpg_register(
- const struct target_core_fabric_ops *tfo,
struct se_wwn *se_wwn,
struct se_portal_group *se_tpg,
- void *tpg_fabric_ptr,
- int se_tpg_type)
+ int proto_id)
{
- struct se_lun *lun;
- u32 i;
+ int ret;
- se_tpg->tpg_lun_list = array_zalloc(TRANSPORT_MAX_LUNS_PER_TPG,
- sizeof(struct se_lun), GFP_KERNEL);
- if (!se_tpg->tpg_lun_list) {
- pr_err("Unable to allocate struct se_portal_group->"
- "tpg_lun_list\n");
- return -ENOMEM;
+ if (!se_tpg)
+ return -EINVAL;
+ /*
+ * For the typical case where core_tpg_register() is called by a
+ * fabric driver from target_core_fabric_ops->fabric_make_tpg()
+ * configfs context, use the original tf_ops pointer already saved
+ * by target-core in target_fabric_make_wwn().
+ *
+ * Otherwise, for special cases like iscsi-target discovery TPGs
+ * the caller is responsible for setting ->se_tpg_tfo ahead of
+ * calling core_tpg_register().
+ */
+ if (se_wwn)
+ se_tpg->se_tpg_tfo = se_wwn->wwn_tf->tf_ops;
+
+ if (!se_tpg->se_tpg_tfo) {
+ pr_err("Unable to locate se_tpg->se_tpg_tfo pointer\n");
+ return -EINVAL;
}
- for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) {
- lun = se_tpg->tpg_lun_list[i];
- lun->unpacked_lun = i;
- lun->lun_link_magic = SE_LUN_LINK_MAGIC;
- lun->lun_status = TRANSPORT_LUN_STATUS_FREE;
- atomic_set(&lun->lun_acl_count, 0);
- init_completion(&lun->lun_shutdown_comp);
- INIT_LIST_HEAD(&lun->lun_acl_list);
- spin_lock_init(&lun->lun_acl_lock);
- spin_lock_init(&lun->lun_sep_lock);
- init_completion(&lun->lun_ref_comp);
- }
-
- se_tpg->se_tpg_type = se_tpg_type;
- se_tpg->se_tpg_fabric_ptr = tpg_fabric_ptr;
- se_tpg->se_tpg_tfo = tfo;
+ INIT_HLIST_HEAD(&se_tpg->tpg_lun_hlist);
+ se_tpg->proto_id = proto_id;
se_tpg->se_tpg_wwn = se_wwn;
atomic_set(&se_tpg->tpg_pr_ref_count, 0);
INIT_LIST_HEAD(&se_tpg->acl_node_list);
INIT_LIST_HEAD(&se_tpg->se_tpg_node);
INIT_LIST_HEAD(&se_tpg->tpg_sess_list);
- spin_lock_init(&se_tpg->acl_node_lock);
spin_lock_init(&se_tpg->session_lock);
- spin_lock_init(&se_tpg->tpg_lun_lock);
+ mutex_init(&se_tpg->tpg_lun_mutex);
+ mutex_init(&se_tpg->acl_node_mutex);
- if (se_tpg->se_tpg_type == TRANSPORT_TPG_TYPE_NORMAL) {
- if (core_tpg_setup_virtual_lun0(se_tpg) < 0) {
- array_free(se_tpg->tpg_lun_list,
- TRANSPORT_MAX_LUNS_PER_TPG);
- return -ENOMEM;
+ if (se_tpg->proto_id >= 0) {
+ se_tpg->tpg_virt_lun0 = core_tpg_alloc_lun(se_tpg, 0);
+ if (IS_ERR(se_tpg->tpg_virt_lun0))
+ return PTR_ERR(se_tpg->tpg_virt_lun0);
+
+ ret = core_tpg_add_lun(se_tpg, se_tpg->tpg_virt_lun0,
+ TRANSPORT_LUNFLAGS_READ_ONLY, g_lun0_dev);
+ if (ret < 0) {
+ kfree(se_tpg->tpg_virt_lun0);
+ return ret;
}
}
@@ -725,11 +540,11 @@
list_add_tail(&se_tpg->se_tpg_node, &tpg_list);
spin_unlock_bh(&tpg_lock);
- pr_debug("TARGET_CORE[%s]: Allocated %s struct se_portal_group for"
- " endpoint: %s, Portal Tag: %u\n", tfo->get_fabric_name(),
- (se_tpg->se_tpg_type == TRANSPORT_TPG_TYPE_NORMAL) ?
- "Normal" : "Discovery", (tfo->tpg_get_wwn(se_tpg) == NULL) ?
- "None" : tfo->tpg_get_wwn(se_tpg), tfo->tpg_get_tag(se_tpg));
+ pr_debug("TARGET_CORE[%s]: Allocated portal_group for endpoint: %s, "
+ "Proto: %d, Portal Tag: %u\n", se_tpg->se_tpg_tfo->get_fabric_name(),
+ se_tpg->se_tpg_tfo->tpg_get_wwn(se_tpg) ?
+ se_tpg->se_tpg_tfo->tpg_get_wwn(se_tpg) : NULL,
+ se_tpg->proto_id, se_tpg->se_tpg_tfo->tpg_get_tag(se_tpg));
return 0;
}
@@ -737,14 +552,14 @@
int core_tpg_deregister(struct se_portal_group *se_tpg)
{
+ const struct target_core_fabric_ops *tfo = se_tpg->se_tpg_tfo;
struct se_node_acl *nacl, *nacl_tmp;
+ LIST_HEAD(node_list);
- pr_debug("TARGET_CORE[%s]: Deallocating %s struct se_portal_group"
- " for endpoint: %s Portal Tag %u\n",
- (se_tpg->se_tpg_type == TRANSPORT_TPG_TYPE_NORMAL) ?
- "Normal" : "Discovery", se_tpg->se_tpg_tfo->get_fabric_name(),
- se_tpg->se_tpg_tfo->tpg_get_wwn(se_tpg),
- se_tpg->se_tpg_tfo->tpg_get_tag(se_tpg));
+ pr_debug("TARGET_CORE[%s]: Deallocating portal_group for endpoint: %s, "
+ "Proto: %d, Portal Tag: %u\n", tfo->get_fabric_name(),
+ tfo->tpg_get_wwn(se_tpg) ? tfo->tpg_get_wwn(se_tpg) : NULL,
+ se_tpg->proto_id, tfo->tpg_get_tag(se_tpg));
spin_lock_bh(&tpg_lock);
list_del(&se_tpg->se_tpg_node);
@@ -752,61 +567,56 @@
while (atomic_read(&se_tpg->tpg_pr_ref_count) != 0)
cpu_relax();
+
+ mutex_lock(&se_tpg->acl_node_mutex);
+ list_splice_init(&se_tpg->acl_node_list, &node_list);
+ mutex_unlock(&se_tpg->acl_node_mutex);
/*
* Release any remaining demo-mode generated se_node_acl that have
* not been released because of TFO->tpg_check_demo_mode_cache() == 1
* in transport_deregister_session().
*/
- spin_lock_irq(&se_tpg->acl_node_lock);
- list_for_each_entry_safe(nacl, nacl_tmp, &se_tpg->acl_node_list,
- acl_list) {
+ list_for_each_entry_safe(nacl, nacl_tmp, &node_list, acl_list) {
list_del(&nacl->acl_list);
se_tpg->num_node_acls--;
- spin_unlock_irq(&se_tpg->acl_node_lock);
core_tpg_wait_for_nacl_pr_ref(nacl);
core_free_device_list_for_node(nacl, se_tpg);
- se_tpg->se_tpg_tfo->tpg_release_fabric_acl(se_tpg, nacl);
-
- spin_lock_irq(&se_tpg->acl_node_lock);
+ kfree(nacl);
}
- spin_unlock_irq(&se_tpg->acl_node_lock);
- if (se_tpg->se_tpg_type == TRANSPORT_TPG_TYPE_NORMAL)
- core_tpg_remove_lun(se_tpg, &se_tpg->tpg_virt_lun0);
+ if (se_tpg->proto_id >= 0) {
+ core_tpg_remove_lun(se_tpg, se_tpg->tpg_virt_lun0);
+ kfree_rcu(se_tpg->tpg_virt_lun0, rcu_head);
+ }
- se_tpg->se_tpg_fabric_ptr = NULL;
- array_free(se_tpg->tpg_lun_list, TRANSPORT_MAX_LUNS_PER_TPG);
return 0;
}
EXPORT_SYMBOL(core_tpg_deregister);
struct se_lun *core_tpg_alloc_lun(
struct se_portal_group *tpg,
- u32 unpacked_lun)
+ u64 unpacked_lun)
{
struct se_lun *lun;
- if (unpacked_lun > (TRANSPORT_MAX_LUNS_PER_TPG-1)) {
- pr_err("%s LUN: %u exceeds TRANSPORT_MAX_LUNS_PER_TPG"
- "-1: %u for Target Portal Group: %u\n",
- tpg->se_tpg_tfo->get_fabric_name(),
- unpacked_lun, TRANSPORT_MAX_LUNS_PER_TPG-1,
- tpg->se_tpg_tfo->tpg_get_tag(tpg));
- return ERR_PTR(-EOVERFLOW);
+ lun = kzalloc(sizeof(*lun), GFP_KERNEL);
+ if (!lun) {
+ pr_err("Unable to allocate se_lun memory\n");
+ return ERR_PTR(-ENOMEM);
}
-
- spin_lock(&tpg->tpg_lun_lock);
- lun = tpg->tpg_lun_list[unpacked_lun];
- if (lun->lun_status == TRANSPORT_LUN_STATUS_ACTIVE) {
- pr_err("TPG Logical Unit Number: %u is already active"
- " on %s Target Portal Group: %u, ignoring request.\n",
- unpacked_lun, tpg->se_tpg_tfo->get_fabric_name(),
- tpg->se_tpg_tfo->tpg_get_tag(tpg));
- spin_unlock(&tpg->tpg_lun_lock);
- return ERR_PTR(-EINVAL);
- }
- spin_unlock(&tpg->tpg_lun_lock);
+ lun->unpacked_lun = unpacked_lun;
+ lun->lun_link_magic = SE_LUN_LINK_MAGIC;
+ atomic_set(&lun->lun_acl_count, 0);
+ init_completion(&lun->lun_ref_comp);
+ INIT_LIST_HEAD(&lun->lun_deve_list);
+ INIT_LIST_HEAD(&lun->lun_dev_link);
+ atomic_set(&lun->lun_tg_pt_secondary_offline, 0);
+ spin_lock_init(&lun->lun_deve_lock);
+ mutex_init(&lun->lun_tg_pt_md_mutex);
+ INIT_LIST_HEAD(&lun->lun_tg_pt_gp_link);
+ spin_lock_init(&lun->lun_tg_pt_gp_lock);
+ lun->lun_tpg = tpg;
return lun;
}
@@ -822,34 +632,70 @@
ret = percpu_ref_init(&lun->lun_ref, core_tpg_lun_ref_release, 0,
GFP_KERNEL);
if (ret < 0)
- return ret;
+ goto out;
- ret = core_dev_export(dev, tpg, lun);
- if (ret < 0) {
- percpu_ref_exit(&lun->lun_ref);
- return ret;
- }
+ ret = core_alloc_rtpi(lun, dev);
+ if (ret)
+ goto out_kill_ref;
- spin_lock(&tpg->tpg_lun_lock);
+ if (!(dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH) &&
+ !(dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE))
+ target_attach_tg_pt_gp(lun, dev->t10_alua.default_tg_pt_gp);
+
+ mutex_lock(&tpg->tpg_lun_mutex);
+
+ spin_lock(&dev->se_port_lock);
+ lun->lun_index = dev->dev_index;
+ rcu_assign_pointer(lun->lun_se_dev, dev);
+ dev->export_count++;
+ list_add_tail(&lun->lun_dev_link, &dev->dev_sep_list);
+ spin_unlock(&dev->se_port_lock);
+
lun->lun_access = lun_access;
- lun->lun_status = TRANSPORT_LUN_STATUS_ACTIVE;
- spin_unlock(&tpg->tpg_lun_lock);
+ if (!(dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE))
+ hlist_add_head_rcu(&lun->link, &tpg->tpg_lun_hlist);
+ mutex_unlock(&tpg->tpg_lun_mutex);
return 0;
+
+out_kill_ref:
+ percpu_ref_exit(&lun->lun_ref);
+out:
+ return ret;
}
void core_tpg_remove_lun(
struct se_portal_group *tpg,
struct se_lun *lun)
{
+ /*
+ * rcu_dereference_raw protected by se_lun->lun_group symlink
+ * reference to se_device->dev_group.
+ */
+ struct se_device *dev = rcu_dereference_raw(lun->lun_se_dev);
+
core_clear_lun_from_tpg(lun, tpg);
+ /*
+ * Wait for any active I/O references to percpu se_lun->lun_ref to
+ * be released. Also, se_lun->lun_ref is now used by PR and ALUA
+ * logic when referencing a remote target port during ALL_TGT_PT=1
+ * and generating UNIT_ATTENTIONs for ALUA access state transition.
+ */
transport_clear_lun_ref(lun);
- core_dev_unexport(lun->lun_se_dev, tpg, lun);
+ mutex_lock(&tpg->tpg_lun_mutex);
+ if (lun->lun_se_dev) {
+ target_detach_tg_pt_gp(lun);
- spin_lock(&tpg->tpg_lun_lock);
- lun->lun_status = TRANSPORT_LUN_STATUS_FREE;
- spin_unlock(&tpg->tpg_lun_lock);
+ spin_lock(&dev->se_port_lock);
+ list_del(&lun->lun_dev_link);
+ dev->export_count--;
+ rcu_assign_pointer(lun->lun_se_dev, NULL);
+ spin_unlock(&dev->se_port_lock);
+ }
+ if (!(dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE))
+ hlist_del_rcu(&lun->link);
+ mutex_unlock(&tpg->tpg_lun_mutex);
percpu_ref_exit(&lun->lun_ref);
}
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index cd3bfc1..ce8574b 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -43,7 +43,6 @@
#include <target/target_core_base.h>
#include <target/target_core_backend.h>
#include <target/target_core_fabric.h>
-#include <target/target_core_configfs.h>
#include "target_core_internal.h"
#include "target_core_alua.h"
@@ -60,7 +59,6 @@
struct kmem_cache *t10_alua_lu_gp_cache;
struct kmem_cache *t10_alua_lu_gp_mem_cache;
struct kmem_cache *t10_alua_tg_pt_gp_cache;
-struct kmem_cache *t10_alua_tg_pt_gp_mem_cache;
struct kmem_cache *t10_alua_lba_map_cache;
struct kmem_cache *t10_alua_lba_map_mem_cache;
@@ -119,16 +117,6 @@
"cache failed\n");
goto out_free_lu_gp_mem_cache;
}
- t10_alua_tg_pt_gp_mem_cache = kmem_cache_create(
- "t10_alua_tg_pt_gp_mem_cache",
- sizeof(struct t10_alua_tg_pt_gp_member),
- __alignof__(struct t10_alua_tg_pt_gp_member),
- 0, NULL);
- if (!t10_alua_tg_pt_gp_mem_cache) {
- pr_err("kmem_cache_create() for t10_alua_tg_pt_gp_"
- "mem_t failed\n");
- goto out_free_tg_pt_gp_cache;
- }
t10_alua_lba_map_cache = kmem_cache_create(
"t10_alua_lba_map_cache",
sizeof(struct t10_alua_lba_map),
@@ -136,7 +124,7 @@
if (!t10_alua_lba_map_cache) {
pr_err("kmem_cache_create() for t10_alua_lba_map_"
"cache failed\n");
- goto out_free_tg_pt_gp_mem_cache;
+ goto out_free_tg_pt_gp_cache;
}
t10_alua_lba_map_mem_cache = kmem_cache_create(
"t10_alua_lba_map_mem_cache",
@@ -159,8 +147,6 @@
kmem_cache_destroy(t10_alua_lba_map_mem_cache);
out_free_lba_map_cache:
kmem_cache_destroy(t10_alua_lba_map_cache);
-out_free_tg_pt_gp_mem_cache:
- kmem_cache_destroy(t10_alua_tg_pt_gp_mem_cache);
out_free_tg_pt_gp_cache:
kmem_cache_destroy(t10_alua_tg_pt_gp_cache);
out_free_lu_gp_mem_cache:
@@ -186,7 +172,6 @@
kmem_cache_destroy(t10_alua_lu_gp_cache);
kmem_cache_destroy(t10_alua_lu_gp_mem_cache);
kmem_cache_destroy(t10_alua_tg_pt_gp_cache);
- kmem_cache_destroy(t10_alua_tg_pt_gp_mem_cache);
kmem_cache_destroy(t10_alua_lba_map_cache);
kmem_cache_destroy(t10_alua_lba_map_mem_cache);
}
@@ -406,12 +391,6 @@
void target_put_session(struct se_session *se_sess)
{
- struct se_portal_group *tpg = se_sess->se_tpg;
-
- if (tpg->se_tpg_tfo->put_session != NULL) {
- tpg->se_tpg_tfo->put_session(se_sess);
- return;
- }
kref_put(&se_sess->sess_kref, target_release_session);
}
EXPORT_SYMBOL(target_put_session);
@@ -498,7 +477,7 @@
const struct target_core_fabric_ops *se_tfo;
struct se_node_acl *se_nacl;
unsigned long flags;
- bool comp_nacl = true;
+ bool comp_nacl = true, drop_nacl = false;
if (!se_tpg) {
transport_free_session(se_sess);
@@ -518,22 +497,22 @@
*/
se_nacl = se_sess->se_node_acl;
- spin_lock_irqsave(&se_tpg->acl_node_lock, flags);
+ mutex_lock(&se_tpg->acl_node_mutex);
if (se_nacl && se_nacl->dynamic_node_acl) {
if (!se_tfo->tpg_check_demo_mode_cache(se_tpg)) {
list_del(&se_nacl->acl_list);
se_tpg->num_node_acls--;
- spin_unlock_irqrestore(&se_tpg->acl_node_lock, flags);
- core_tpg_wait_for_nacl_pr_ref(se_nacl);
- core_free_device_list_for_node(se_nacl, se_tpg);
- se_tfo->tpg_release_fabric_acl(se_tpg, se_nacl);
-
- comp_nacl = false;
- spin_lock_irqsave(&se_tpg->acl_node_lock, flags);
+ drop_nacl = true;
}
}
- spin_unlock_irqrestore(&se_tpg->acl_node_lock, flags);
+ mutex_unlock(&se_tpg->acl_node_mutex);
+ if (drop_nacl) {
+ core_tpg_wait_for_nacl_pr_ref(se_nacl);
+ core_free_device_list_for_node(se_nacl, se_tpg);
+ kfree(se_nacl);
+ comp_nacl = false;
+ }
pr_debug("TARGET_CORE[%s]: Deregistered fabric_sess\n",
se_tpg->se_tpg_tfo->get_fabric_name());
/*
@@ -593,9 +572,8 @@
* this command for frontend exceptions.
*/
if (cmd->transport_state & CMD_T_STOP) {
- pr_debug("%s:%d CMD_T_STOP for ITT: 0x%08x\n",
- __func__, __LINE__,
- cmd->se_tfo->get_task_tag(cmd));
+ pr_debug("%s:%d CMD_T_STOP for ITT: 0x%08llx\n",
+ __func__, __LINE__, cmd->tag);
spin_unlock_irqrestore(&cmd->t_state_lock, flags);
@@ -1148,6 +1126,8 @@
/*
* Used by fabric modules containing a local struct se_cmd within their
* fabric dependent per I/O descriptor.
+ *
+ * Preserves the value of @cmd->tag.
*/
void transport_init_se_cmd(
struct se_cmd *cmd,
@@ -1274,11 +1254,7 @@
return ret;
cmd->se_cmd_flags |= SCF_SUPPORTED_SAM_OPCODE;
-
- spin_lock(&cmd->se_lun->lun_sep_lock);
- if (cmd->se_lun->lun_sep)
- cmd->se_lun->lun_sep->sep_stats.cmd_pdus++;
- spin_unlock(&cmd->se_lun->lun_sep_lock);
+ atomic_long_inc(&cmd->se_lun->lun_stats.cmd_pdus);
return 0;
}
EXPORT_SYMBOL(target_setup_cmd_from_cdb);
@@ -1346,11 +1322,9 @@
cmd->t_data_sg = sgl;
cmd->t_data_nents = sgl_count;
+ cmd->t_bidi_data_sg = sgl_bidi;
+ cmd->t_bidi_data_nents = sgl_bidi_count;
- if (sgl_bidi && sgl_bidi_count) {
- cmd->t_bidi_data_sg = sgl_bidi;
- cmd->t_bidi_data_nents = sgl_bidi_count;
- }
cmd->se_cmd_flags |= SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC;
return 0;
}
@@ -1375,6 +1349,8 @@
* @sgl_prot: struct scatterlist memory protection information
* @sgl_prot_count: scatterlist count for protection information
*
+ * Task tags are supported if the caller has set @se_cmd->tag.
+ *
* Returns non zero to signal active I/O shutdown failure. All other
* setup exceptions will be returned as a SCSI CHECK_CONDITION response,
* but still return zero here.
@@ -1383,7 +1359,7 @@
* assumes internal allocation of fabric payload buffer by target-core.
*/
int target_submit_cmd_map_sgls(struct se_cmd *se_cmd, struct se_session *se_sess,
- unsigned char *cdb, unsigned char *sense, u32 unpacked_lun,
+ unsigned char *cdb, unsigned char *sense, u64 unpacked_lun,
u32 data_length, int task_attr, int data_dir, int flags,
struct scatterlist *sgl, u32 sgl_count,
struct scatterlist *sgl_bidi, u32 sgl_bidi_count,
@@ -1412,7 +1388,7 @@
* for fabrics using TARGET_SCF_ACK_KREF that expect a second
* kref_put() to happen during fabric packet acknowledgement.
*/
- ret = target_get_sess_cmd(se_sess, se_cmd, (flags & TARGET_SCF_ACK_KREF));
+ ret = target_get_sess_cmd(se_cmd, flags & TARGET_SCF_ACK_KREF);
if (ret)
return ret;
/*
@@ -1426,7 +1402,7 @@
rc = transport_lookup_cmd_lun(se_cmd, unpacked_lun);
if (rc) {
transport_send_check_condition_and_sense(se_cmd, rc, 0);
- target_put_sess_cmd(se_sess, se_cmd);
+ target_put_sess_cmd(se_cmd);
return 0;
}
@@ -1443,6 +1419,7 @@
if (sgl_prot_count) {
se_cmd->t_prot_sg = sgl_prot;
se_cmd->t_prot_nents = sgl_prot_count;
+ se_cmd->se_cmd_flags |= SCF_PASSTHROUGH_PROT_SG_TO_MEM_NOALLOC;
}
/*
@@ -1506,6 +1483,8 @@
* @data_dir: DMA data direction
* @flags: flags for command submission from target_sc_flags_tables
*
+ * Task tags are supported if the caller has set @se_cmd->tag.
+ *
* Returns non zero to signal active I/O shutdown failure. All other
* setup exceptions will be returned as a SCSI CHECK_CONDITION response,
* but still return zero here.
@@ -1516,7 +1495,7 @@
* It also assumes interal target core SGL memory allocation.
*/
int target_submit_cmd(struct se_cmd *se_cmd, struct se_session *se_sess,
- unsigned char *cdb, unsigned char *sense, u32 unpacked_lun,
+ unsigned char *cdb, unsigned char *sense, u64 unpacked_lun,
u32 data_length, int task_attr, int data_dir, int flags)
{
return target_submit_cmd_map_sgls(se_cmd, se_sess, cdb, sense,
@@ -1553,7 +1532,7 @@
**/
int target_submit_tmr(struct se_cmd *se_cmd, struct se_session *se_sess,
- unsigned char *sense, u32 unpacked_lun,
+ unsigned char *sense, u64 unpacked_lun,
void *fabric_tmr_ptr, unsigned char tm_type,
gfp_t gfp, unsigned int tag, int flags)
{
@@ -1577,7 +1556,7 @@
se_cmd->se_tmr_req->ref_task_tag = tag;
/* See target_submit_cmd for commentary */
- ret = target_get_sess_cmd(se_sess, se_cmd, (flags & TARGET_SCF_ACK_KREF));
+ ret = target_get_sess_cmd(se_cmd, flags & TARGET_SCF_ACK_KREF);
if (ret) {
core_tmr_release_req(se_cmd->se_tmr_req);
return ret;
@@ -1633,9 +1612,8 @@
{
int ret = 0;
- pr_debug("-----[ Storage Engine Exception for cmd: %p ITT: 0x%08x"
- " CDB: 0x%02x\n", cmd, cmd->se_tfo->get_task_tag(cmd),
- cmd->t_task_cdb[0]);
+ pr_debug("-----[ Storage Engine Exception for cmd: %p ITT: 0x%08llx"
+ " CDB: 0x%02x\n", cmd, cmd->tag, cmd->t_task_cdb[0]);
pr_debug("-----[ i_state: %d t_state: %d sense_reason: %d\n",
cmd->se_tfo->get_cmd_state(cmd),
cmd->t_state, sense_reason);
@@ -1692,13 +1670,13 @@
* See spc4r17, section 7.4.6 Control Mode Page, Table 349
*/
if (cmd->se_sess &&
- cmd->se_dev->dev_attrib.emulate_ua_intlck_ctrl == 2)
- core_scsi3_ua_allocate(cmd->se_sess->se_node_acl,
- cmd->orig_fe_lun, 0x2C,
- ASCQ_2CH_PREVIOUS_RESERVATION_CONFLICT_STATUS);
-
+ cmd->se_dev->dev_attrib.emulate_ua_intlck_ctrl == 2) {
+ target_ua_allocate_lun(cmd->se_sess->se_node_acl,
+ cmd->orig_fe_lun, 0x2C,
+ ASCQ_2CH_PREVIOUS_RESERVATION_CONFLICT_STATUS);
+ }
trace_target_cmd_complete(cmd);
- ret = cmd->se_tfo-> queue_status(cmd);
+ ret = cmd->se_tfo->queue_status(cmd);
if (ret == -EAGAIN || ret == -ENOMEM)
goto queue_full;
goto check_stop;
@@ -1759,8 +1737,8 @@
break;
sectors = cmd->data_length >> ilog2(cmd->se_dev->dev_attrib.block_size);
- cmd->pi_err = sbc_dif_verify_write(cmd, cmd->t_task_lba,
- sectors, 0, NULL, 0);
+ cmd->pi_err = sbc_dif_verify(cmd, cmd->t_task_lba,
+ sectors, 0, cmd->t_prot_sg, 0);
if (unlikely(cmd->pi_err)) {
spin_lock_irq(&cmd->t_state_lock);
cmd->transport_state &= ~(CMD_T_BUSY|CMD_T_SENT);
@@ -1843,9 +1821,8 @@
*/
spin_lock_irq(&cmd->t_state_lock);
if (cmd->transport_state & CMD_T_STOP) {
- pr_debug("%s:%d CMD_T_STOP for ITT: 0x%08x\n",
- __func__, __LINE__,
- cmd->se_tfo->get_task_tag(cmd));
+ pr_debug("%s:%d CMD_T_STOP for ITT: 0x%08llx\n",
+ __func__, __LINE__, cmd->tag);
spin_unlock_irq(&cmd->t_state_lock);
complete_all(&cmd->t_transport_stop_comp);
@@ -1984,16 +1961,17 @@
static bool target_read_prot_action(struct se_cmd *cmd)
{
- sense_reason_t rc;
-
switch (cmd->prot_op) {
case TARGET_PROT_DIN_STRIP:
if (!(cmd->se_sess->sup_prot_ops & TARGET_PROT_DIN_STRIP)) {
- rc = sbc_dif_read_strip(cmd);
- if (rc) {
- cmd->pi_err = rc;
+ u32 sectors = cmd->data_length >>
+ ilog2(cmd->se_dev->dev_attrib.block_size);
+
+ cmd->pi_err = sbc_dif_verify(cmd, cmd->t_task_lba,
+ sectors, 0, cmd->t_prot_sg,
+ 0);
+ if (cmd->pi_err)
return true;
- }
}
break;
case TARGET_PROT_DIN_INSERT:
@@ -2072,12 +2050,8 @@
queue_rsp:
switch (cmd->data_direction) {
case DMA_FROM_DEVICE:
- spin_lock(&cmd->se_lun->lun_sep_lock);
- if (cmd->se_lun->lun_sep) {
- cmd->se_lun->lun_sep->sep_stats.tx_data_octets +=
- cmd->data_length;
- }
- spin_unlock(&cmd->se_lun->lun_sep_lock);
+ atomic_long_add(cmd->data_length,
+ &cmd->se_lun->lun_stats.tx_data_octets);
/*
* Perform READ_STRIP of PI using software emulation when
* backend had PI enabled, if the transport will not be
@@ -2100,22 +2074,14 @@
goto queue_full;
break;
case DMA_TO_DEVICE:
- spin_lock(&cmd->se_lun->lun_sep_lock);
- if (cmd->se_lun->lun_sep) {
- cmd->se_lun->lun_sep->sep_stats.rx_data_octets +=
- cmd->data_length;
- }
- spin_unlock(&cmd->se_lun->lun_sep_lock);
+ atomic_long_add(cmd->data_length,
+ &cmd->se_lun->lun_stats.rx_data_octets);
/*
* Check if we need to send READ payload for BIDI-COMMAND
*/
if (cmd->se_cmd_flags & SCF_BIDI) {
- spin_lock(&cmd->se_lun->lun_sep_lock);
- if (cmd->se_lun->lun_sep) {
- cmd->se_lun->lun_sep->sep_stats.tx_data_octets +=
- cmd->data_length;
- }
- spin_unlock(&cmd->se_lun->lun_sep_lock);
+ atomic_long_add(cmd->data_length,
+ &cmd->se_lun->lun_stats.tx_data_octets);
ret = cmd->se_tfo->queue_data_in(cmd);
if (ret == -EAGAIN || ret == -ENOMEM)
goto queue_full;
@@ -2172,6 +2138,12 @@
static inline void transport_free_pages(struct se_cmd *cmd)
{
+ if (!(cmd->se_cmd_flags & SCF_PASSTHROUGH_PROT_SG_TO_MEM_NOALLOC)) {
+ transport_free_sgl(cmd->t_prot_sg, cmd->t_prot_nents);
+ cmd->t_prot_sg = NULL;
+ cmd->t_prot_nents = 0;
+ }
+
if (cmd->se_cmd_flags & SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC) {
/*
* Release special case READ buffer payload required for
@@ -2195,10 +2167,6 @@
transport_free_sgl(cmd->t_bidi_data_sg, cmd->t_bidi_data_nents);
cmd->t_bidi_data_sg = NULL;
cmd->t_bidi_data_nents = 0;
-
- transport_free_sgl(cmd->t_prot_sg, cmd->t_prot_nents);
- cmd->t_prot_sg = NULL;
- cmd->t_prot_nents = 0;
}
/**
@@ -2220,7 +2188,7 @@
* If this cmd has been setup with target_get_sess_cmd(), drop
* the kref and call ->release_cmd() in kref callback.
*/
- return target_put_sess_cmd(cmd->se_sess, cmd);
+ return target_put_sess_cmd(cmd);
}
/**
@@ -2337,6 +2305,14 @@
int ret = 0;
bool zero_flag = !(cmd->se_cmd_flags & SCF_SCSI_DATA_CDB);
+ if (cmd->prot_op != TARGET_PROT_NORMAL &&
+ !(cmd->se_cmd_flags & SCF_PASSTHROUGH_PROT_SG_TO_MEM_NOALLOC)) {
+ ret = target_alloc_sgl(&cmd->t_prot_sg, &cmd->t_prot_nents,
+ cmd->prot_length, true);
+ if (ret < 0)
+ return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+ }
+
/*
* Determine is the TCM fabric module has already allocated physical
* memory, and is directly calling transport_generic_map_mem_to_cmd()
@@ -2362,14 +2338,6 @@
return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
}
- if (cmd->prot_op != TARGET_PROT_NORMAL) {
- ret = target_alloc_sgl(&cmd->t_prot_sg,
- &cmd->t_prot_nents,
- cmd->prot_length, true);
- if (ret < 0)
- return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
- }
-
ret = target_alloc_sgl(&cmd->t_data_sg, &cmd->t_data_nents,
cmd->data_length, zero_flag);
if (ret < 0)
@@ -2464,13 +2432,12 @@
EXPORT_SYMBOL(transport_generic_free_cmd);
/* target_get_sess_cmd - Add command to active ->sess_cmd_list
- * @se_sess: session to reference
* @se_cmd: command descriptor to add
* @ack_kref: Signal that fabric will perform an ack target_put_sess_cmd()
*/
-int target_get_sess_cmd(struct se_session *se_sess, struct se_cmd *se_cmd,
- bool ack_kref)
+int target_get_sess_cmd(struct se_cmd *se_cmd, bool ack_kref)
{
+ struct se_session *se_sess = se_cmd->se_sess;
unsigned long flags;
int ret = 0;
@@ -2492,7 +2459,7 @@
spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
if (ret && ack_kref)
- target_put_sess_cmd(se_sess, se_cmd);
+ target_put_sess_cmd(se_cmd);
return ret;
}
@@ -2521,11 +2488,12 @@
}
/* target_put_sess_cmd - Check for active I/O shutdown via kref_put
- * @se_sess: session to reference
* @se_cmd: command descriptor to drop
*/
-int target_put_sess_cmd(struct se_session *se_sess, struct se_cmd *se_cmd)
+int target_put_sess_cmd(struct se_cmd *se_cmd)
{
+ struct se_session *se_sess = se_cmd->se_sess;
+
if (!se_sess) {
se_cmd->se_tfo->release_cmd(se_cmd);
return 1;
@@ -2591,31 +2559,10 @@
}
EXPORT_SYMBOL(target_wait_for_sess_cmds);
-static int transport_clear_lun_ref_thread(void *p)
+void transport_clear_lun_ref(struct se_lun *lun)
{
- struct se_lun *lun = p;
-
percpu_ref_kill(&lun->lun_ref);
-
wait_for_completion(&lun->lun_ref_comp);
- complete(&lun->lun_shutdown_comp);
-
- return 0;
-}
-
-int transport_clear_lun_ref(struct se_lun *lun)
-{
- struct task_struct *kt;
-
- kt = kthread_run(transport_clear_lun_ref_thread, lun,
- "tcm_cl_%u", lun->unpacked_lun);
- if (IS_ERR(kt)) {
- pr_err("Unable to start clear_lun thread\n");
- return PTR_ERR(kt);
- }
- wait_for_completion(&lun->lun_shutdown_comp);
-
- return 0;
}
/**
@@ -2649,10 +2596,8 @@
cmd->transport_state |= CMD_T_STOP;
- pr_debug("wait_for_tasks: Stopping %p ITT: 0x%08x"
- " i_state: %d, t_state: %d, CMD_T_STOP\n",
- cmd, cmd->se_tfo->get_task_tag(cmd),
- cmd->se_tfo->get_cmd_state(cmd), cmd->t_state);
+ pr_debug("wait_for_tasks: Stopping %p ITT: 0x%08llx i_state: %d, t_state: %d, CMD_T_STOP\n",
+ cmd, cmd->tag, cmd->se_tfo->get_cmd_state(cmd), cmd->t_state);
spin_unlock_irqrestore(&cmd->t_state_lock, flags);
@@ -2661,9 +2606,8 @@
spin_lock_irqsave(&cmd->t_state_lock, flags);
cmd->transport_state &= ~(CMD_T_ACTIVE | CMD_T_STOP);
- pr_debug("wait_for_tasks: Stopped wait_for_completion("
- "&cmd->t_transport_stop_comp) for ITT: 0x%08x\n",
- cmd->se_tfo->get_task_tag(cmd));
+ pr_debug("wait_for_tasks: Stopped wait_for_completion(&cmd->t_transport_stop_comp) for ITT: 0x%08llx\n",
+ cmd->tag);
spin_unlock_irqrestore(&cmd->t_state_lock, flags);
@@ -2965,8 +2909,8 @@
if (!send_status || !(cmd->se_cmd_flags & SCF_SEND_DELAYED_TAS))
return 1;
- pr_debug("Sending delayed SAM_STAT_TASK_ABORTED status for CDB: 0x%02x ITT: 0x%08x\n",
- cmd->t_task_cdb[0], cmd->se_tfo->get_task_tag(cmd));
+ pr_debug("Sending delayed SAM_STAT_TASK_ABORTED status for CDB: 0x%02x ITT: 0x%08llx\n",
+ cmd->t_task_cdb[0], cmd->tag);
cmd->se_cmd_flags &= ~SCF_SEND_DELAYED_TAS;
cmd->scsi_status = SAM_STAT_TASK_ABORTED;
@@ -3005,9 +2949,8 @@
transport_lun_remove_cmd(cmd);
- pr_debug("Setting SAM_STAT_TASK_ABORTED status for CDB: 0x%02x,"
- " ITT: 0x%08x\n", cmd->t_task_cdb[0],
- cmd->se_tfo->get_task_tag(cmd));
+ pr_debug("Setting SAM_STAT_TASK_ABORTED status for CDB: 0x%02x, ITT: 0x%08llx\n",
+ cmd->t_task_cdb[0], cmd->tag);
trace_target_cmd_complete(cmd);
cmd->se_tfo->queue_status(cmd);
@@ -3033,6 +2976,11 @@
ret = core_tmr_lun_reset(dev, tmr, NULL, NULL);
tmr->response = (!ret) ? TMR_FUNCTION_COMPLETE :
TMR_FUNCTION_REJECTED;
+ if (tmr->response == TMR_FUNCTION_COMPLETE) {
+ target_ua_allocate_lun(cmd->se_sess->se_node_acl,
+ cmd->orig_fe_lun, 0x29,
+ ASCQ_29H_BUS_DEVICE_RESET_FUNCTION_OCCURRED);
+ }
break;
case TMR_TARGET_WARM_RESET:
tmr->response = TMR_FUNCTION_REJECTED;
@@ -3067,3 +3015,22 @@
return 0;
}
EXPORT_SYMBOL(transport_generic_handle_tmr);
+
+bool
+target_check_wce(struct se_device *dev)
+{
+ bool wce = false;
+
+ if (dev->transport->get_write_cache)
+ wce = dev->transport->get_write_cache(dev);
+ else if (dev->dev_attrib.emulate_write_cache > 0)
+ wce = true;
+
+ return wce;
+}
+
+bool
+target_check_fua(struct se_device *dev)
+{
+ return target_check_wce(dev) && dev->dev_attrib.emulate_fua_write > 0;
+}
diff --git a/drivers/target/target_core_ua.c b/drivers/target/target_core_ua.c
index e44cc94..be25eb8 100644
--- a/drivers/target/target_core_ua.c
+++ b/drivers/target/target_core_ua.c
@@ -29,7 +29,6 @@
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
-#include <target/target_core_configfs.h>
#include "target_core_internal.h"
#include "target_core_alua.h"
@@ -50,9 +49,17 @@
if (!nacl)
return 0;
- deve = nacl->device_list[cmd->orig_fe_lun];
- if (!atomic_read(&deve->ua_count))
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, cmd->orig_fe_lun);
+ if (!deve) {
+ rcu_read_unlock();
return 0;
+ }
+ if (!atomic_read(&deve->ua_count)) {
+ rcu_read_unlock();
+ return 0;
+ }
+ rcu_read_unlock();
/*
* From sam4r14, section 5.14 Unit attention condition:
*
@@ -79,18 +86,11 @@
}
int core_scsi3_ua_allocate(
- struct se_node_acl *nacl,
- u32 unpacked_lun,
+ struct se_dev_entry *deve,
u8 asc,
u8 ascq)
{
- struct se_dev_entry *deve;
struct se_ua *ua, *ua_p, *ua_tmp;
- /*
- * PASSTHROUGH OPS
- */
- if (!nacl)
- return -EINVAL;
ua = kmem_cache_zalloc(se_ua_cache, GFP_ATOMIC);
if (!ua) {
@@ -99,13 +99,9 @@
}
INIT_LIST_HEAD(&ua->ua_nacl_list);
- ua->ua_nacl = nacl;
ua->ua_asc = asc;
ua->ua_ascq = ascq;
- spin_lock_irq(&nacl->device_list_lock);
- deve = nacl->device_list[unpacked_lun];
-
spin_lock(&deve->ua_lock);
list_for_each_entry_safe(ua_p, ua_tmp, &deve->ua_list, ua_nacl_list) {
/*
@@ -113,7 +109,6 @@
*/
if ((ua_p->ua_asc == asc) && (ua_p->ua_ascq == ascq)) {
spin_unlock(&deve->ua_lock);
- spin_unlock_irq(&nacl->device_list_lock);
kmem_cache_free(se_ua_cache, ua);
return 0;
}
@@ -158,24 +153,40 @@
list_add_tail(&ua->ua_nacl_list,
&deve->ua_list);
spin_unlock(&deve->ua_lock);
- spin_unlock_irq(&nacl->device_list_lock);
atomic_inc_mb(&deve->ua_count);
return 0;
}
list_add_tail(&ua->ua_nacl_list, &deve->ua_list);
spin_unlock(&deve->ua_lock);
- spin_unlock_irq(&nacl->device_list_lock);
- pr_debug("[%s]: Allocated UNIT ATTENTION, mapped LUN: %u, ASC:"
- " 0x%02x, ASCQ: 0x%02x\n",
- nacl->se_tpg->se_tpg_tfo->get_fabric_name(), unpacked_lun,
+ pr_debug("Allocated UNIT ATTENTION, mapped LUN: %llu, ASC:"
+ " 0x%02x, ASCQ: 0x%02x\n", deve->mapped_lun,
asc, ascq);
atomic_inc_mb(&deve->ua_count);
return 0;
}
+void target_ua_allocate_lun(struct se_node_acl *nacl,
+ u32 unpacked_lun, u8 asc, u8 ascq)
+{
+ struct se_dev_entry *deve;
+
+ if (!nacl)
+ return;
+
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, unpacked_lun);
+ if (!deve) {
+ rcu_read_unlock();
+ return;
+ }
+
+ core_scsi3_ua_allocate(deve, asc, ascq);
+ rcu_read_unlock();
+}
+
void core_scsi3_ua_release_all(
struct se_dev_entry *deve)
{
@@ -210,10 +221,14 @@
if (!nacl)
return;
- spin_lock_irq(&nacl->device_list_lock);
- deve = nacl->device_list[cmd->orig_fe_lun];
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, cmd->orig_fe_lun);
+ if (!deve) {
+ rcu_read_unlock();
+ return;
+ }
if (!atomic_read(&deve->ua_count)) {
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_unlock();
return;
}
/*
@@ -249,10 +264,10 @@
atomic_dec_mb(&deve->ua_count);
}
spin_unlock(&deve->ua_lock);
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_unlock();
pr_debug("[%s]: %s UNIT ATTENTION condition with"
- " INTLCK_CTRL: %d, mapped LUN: %u, got CDB: 0x%02x"
+ " INTLCK_CTRL: %d, mapped LUN: %llu, got CDB: 0x%02x"
" reported ASC: 0x%02x, ASCQ: 0x%02x\n",
nacl->se_tpg->se_tpg_tfo->get_fabric_name(),
(dev->dev_attrib.emulate_ua_intlck_ctrl != 0) ? "Reporting" :
@@ -278,10 +293,14 @@
if (!nacl)
return -EINVAL;
- spin_lock_irq(&nacl->device_list_lock);
- deve = nacl->device_list[cmd->orig_fe_lun];
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, cmd->orig_fe_lun);
+ if (!deve) {
+ rcu_read_unlock();
+ return -EINVAL;
+ }
if (!atomic_read(&deve->ua_count)) {
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_unlock();
return -EPERM;
}
/*
@@ -307,10 +326,10 @@
atomic_dec_mb(&deve->ua_count);
}
spin_unlock(&deve->ua_lock);
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_unlock();
pr_debug("[%s]: Released UNIT ATTENTION condition, mapped"
- " LUN: %u, got REQUEST_SENSE reported ASC: 0x%02x,"
+ " LUN: %llu, got REQUEST_SENSE reported ASC: 0x%02x,"
" ASCQ: 0x%02x\n", nacl->se_tpg->se_tpg_tfo->get_fabric_name(),
cmd->orig_fe_lun, *asc, *ascq);
diff --git a/drivers/target/target_core_ua.h b/drivers/target/target_core_ua.h
index a6b56b3..bd6e78b 100644
--- a/drivers/target/target_core_ua.h
+++ b/drivers/target/target_core_ua.h
@@ -25,10 +25,14 @@
#define ASCQ_2CH_PREVIOUS_RESERVATION_CONFLICT_STATUS 0x09
+#define ASCQ_3FH_INQUIRY_DATA_HAS_CHANGED 0x03
+#define ASCQ_3FH_REPORTED_LUNS_DATA_HAS_CHANGED 0x0E
+
extern struct kmem_cache *se_ua_cache;
extern sense_reason_t target_scsi3_ua_check(struct se_cmd *);
-extern int core_scsi3_ua_allocate(struct se_node_acl *, u32, u8, u8);
+extern int core_scsi3_ua_allocate(struct se_dev_entry *, u8, u8);
+extern void target_ua_allocate_lun(struct se_node_acl *, u32, u8, u8);
extern void core_scsi3_ua_release_all(struct se_dev_entry *);
extern void core_scsi3_ua_for_check_condition(struct se_cmd *, u8 *, u8 *);
extern int core_scsi3_ua_clear_for_request_sense(struct se_cmd *,
diff --git a/drivers/target/target_core_user.c b/drivers/target/target_core_user.c
index 549af98..c448ef4 100644
--- a/drivers/target/target_core_user.c
+++ b/drivers/target/target_core_user.c
@@ -1,6 +1,7 @@
/*
* Copyright (C) 2013 Shaohua Li <shli@kernel.org>
* Copyright (C) 2014 Red Hat, Inc.
+ * Copyright (C) 2015 Arrikto, Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
@@ -30,7 +31,6 @@
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
#include <target/target_core_backend.h>
-#include <target/target_core_backend_configfs.h>
#include <linux/target_core_user.h>
@@ -168,6 +168,11 @@
tcmu_cmd->tcmu_dev = udev;
tcmu_cmd->data_length = se_cmd->data_length;
+ if (se_cmd->se_cmd_flags & SCF_BIDI) {
+ BUG_ON(!(se_cmd->t_bidi_data_sg && se_cmd->t_bidi_data_nents));
+ tcmu_cmd->data_length += se_cmd->t_bidi_data_sg->length;
+ }
+
tcmu_cmd->deadline = jiffies + msecs_to_jiffies(TCMU_TIME_OUT);
idr_preload(GFP_KERNEL);
@@ -226,9 +231,106 @@
#define UPDATE_HEAD(head, used, size) smp_store_release(&head, ((head % size) + used) % size)
+static void alloc_and_scatter_data_area(struct tcmu_dev *udev,
+ struct scatterlist *data_sg, unsigned int data_nents,
+ struct iovec **iov, int *iov_cnt, bool copy_data)
+{
+ int i;
+ void *from, *to;
+ size_t copy_bytes;
+ struct scatterlist *sg;
+
+ for_each_sg(data_sg, sg, data_nents, i) {
+ copy_bytes = min_t(size_t, sg->length,
+ head_to_end(udev->data_head, udev->data_size));
+ from = kmap_atomic(sg_page(sg)) + sg->offset;
+ to = (void *) udev->mb_addr + udev->data_off + udev->data_head;
+
+ if (copy_data) {
+ memcpy(to, from, copy_bytes);
+ tcmu_flush_dcache_range(to, copy_bytes);
+ }
+
+ /* Even iov_base is relative to mb_addr */
+ (*iov)->iov_len = copy_bytes;
+ (*iov)->iov_base = (void __user *) udev->data_off +
+ udev->data_head;
+ (*iov_cnt)++;
+ (*iov)++;
+
+ UPDATE_HEAD(udev->data_head, copy_bytes, udev->data_size);
+
+ /* Uh oh, we wrapped the buffer. Must split sg across 2 iovs. */
+ if (sg->length != copy_bytes) {
+ void *from_skip = from + copy_bytes;
+
+ copy_bytes = sg->length - copy_bytes;
+
+ (*iov)->iov_len = copy_bytes;
+ (*iov)->iov_base = (void __user *) udev->data_off +
+ udev->data_head;
+
+ if (copy_data) {
+ to = (void *) udev->mb_addr +
+ udev->data_off + udev->data_head;
+ memcpy(to, from_skip, copy_bytes);
+ tcmu_flush_dcache_range(to, copy_bytes);
+ }
+
+ (*iov_cnt)++;
+ (*iov)++;
+
+ UPDATE_HEAD(udev->data_head,
+ copy_bytes, udev->data_size);
+ }
+
+ kunmap_atomic(from - sg->offset);
+ }
+}
+
+static void gather_and_free_data_area(struct tcmu_dev *udev,
+ struct scatterlist *data_sg, unsigned int data_nents)
+{
+ int i;
+ void *from, *to;
+ size_t copy_bytes;
+ struct scatterlist *sg;
+
+ /* It'd be easier to look at entry's iovec again, but UAM */
+ for_each_sg(data_sg, sg, data_nents, i) {
+ copy_bytes = min_t(size_t, sg->length,
+ head_to_end(udev->data_tail, udev->data_size));
+
+ to = kmap_atomic(sg_page(sg)) + sg->offset;
+ WARN_ON(sg->length + sg->offset > PAGE_SIZE);
+ from = (void *) udev->mb_addr +
+ udev->data_off + udev->data_tail;
+ tcmu_flush_dcache_range(from, copy_bytes);
+ memcpy(to, from, copy_bytes);
+
+ UPDATE_HEAD(udev->data_tail, copy_bytes, udev->data_size);
+
+ /* Uh oh, wrapped the data buffer for this sg's data */
+ if (sg->length != copy_bytes) {
+ void *to_skip = to + copy_bytes;
+
+ from = (void *) udev->mb_addr +
+ udev->data_off + udev->data_tail;
+ WARN_ON(udev->data_tail);
+ copy_bytes = sg->length - copy_bytes;
+ tcmu_flush_dcache_range(from, copy_bytes);
+ memcpy(to_skip, from, copy_bytes);
+
+ UPDATE_HEAD(udev->data_tail,
+ copy_bytes, udev->data_size);
+ }
+ kunmap_atomic(to - sg->offset);
+ }
+}
+
/*
- * We can't queue a command until we have space available on the cmd ring *and* space
- * space avail on the data ring.
+ * We can't queue a command until we have space available on the cmd ring *and*
+ * space available on the data ring.
*
* Called with ring lock held.
*/
@@ -276,12 +378,11 @@
size_t base_command_size, command_size;
struct tcmu_mailbox *mb;
struct tcmu_cmd_entry *entry;
- int i;
- struct scatterlist *sg;
struct iovec *iov;
- int iov_cnt = 0;
+ int iov_cnt;
uint32_t cmd_head;
uint64_t cdb_off;
+ bool copy_to_data_area;
if (test_bit(TCMU_DEV_BIT_BROKEN, &udev->flags))
return -EINVAL;
@@ -294,7 +395,8 @@
* b/c size == offsetof one-past-element.
*/
base_command_size = max(offsetof(struct tcmu_cmd_entry,
- req.iov[se_cmd->t_data_nents + 2]),
+ req.iov[se_cmd->t_bidi_data_nents +
+ se_cmd->t_data_nents + 2]),
sizeof(struct tcmu_cmd_entry));
command_size = base_command_size
+ round_up(scsi_command_size(se_cmd->t_task_cdb), TCMU_OP_ALIGN_SIZE);
@@ -362,53 +464,20 @@
* Fix up iovecs, and handle if allocation in data ring wrapped.
*/
iov = &entry->req.iov[0];
- for_each_sg(se_cmd->t_data_sg, sg, se_cmd->t_data_nents, i) {
- size_t copy_bytes = min((size_t)sg->length,
- head_to_end(udev->data_head, udev->data_size));
- void *from = kmap_atomic(sg_page(sg)) + sg->offset;
- void *to = (void *) mb + udev->data_off + udev->data_head;
-
- if (tcmu_cmd->se_cmd->data_direction == DMA_TO_DEVICE) {
- memcpy(to, from, copy_bytes);
- tcmu_flush_dcache_range(to, copy_bytes);
- }
-
- /* Even iov_base is relative to mb_addr */
- iov->iov_len = copy_bytes;
- iov->iov_base = (void __user *) udev->data_off +
- udev->data_head;
- iov_cnt++;
- iov++;
-
- UPDATE_HEAD(udev->data_head, copy_bytes, udev->data_size);
-
- /* Uh oh, we wrapped the buffer. Must split sg across 2 iovs. */
- if (sg->length != copy_bytes) {
- from += copy_bytes;
- copy_bytes = sg->length - copy_bytes;
-
- iov->iov_len = copy_bytes;
- iov->iov_base = (void __user *) udev->data_off +
- udev->data_head;
-
- if (se_cmd->data_direction == DMA_TO_DEVICE) {
- to = (void *) mb + udev->data_off + udev->data_head;
- memcpy(to, from, copy_bytes);
- tcmu_flush_dcache_range(to, copy_bytes);
- }
-
- iov_cnt++;
- iov++;
-
- UPDATE_HEAD(udev->data_head, copy_bytes, udev->data_size);
- }
-
- kunmap_atomic(from);
- }
+ iov_cnt = 0;
+ copy_to_data_area = (se_cmd->data_direction == DMA_TO_DEVICE
+ || se_cmd->se_cmd_flags & SCF_BIDI);
+ alloc_and_scatter_data_area(udev, se_cmd->t_data_sg,
+ se_cmd->t_data_nents, &iov, &iov_cnt, copy_to_data_area);
entry->req.iov_cnt = iov_cnt;
- entry->req.iov_bidi_cnt = 0;
entry->req.iov_dif_cnt = 0;
+ /* Handle BIDI commands */
+ iov_cnt = 0;
+ alloc_and_scatter_data_area(udev, se_cmd->t_bidi_data_sg,
+ se_cmd->t_bidi_data_nents, &iov, &iov_cnt, false);
+ entry->req.iov_bidi_cnt = iov_cnt;
+
/* All offsets relative to mb_addr, not start of entry! */
cdb_off = CMDR_OFF + cmd_head + base_command_size;
memcpy((void *) mb + cdb_off, se_cmd->t_task_cdb, scsi_command_size(se_cmd->t_task_cdb));
@@ -481,47 +550,22 @@
se_cmd->scsi_sense_length);
UPDATE_HEAD(udev->data_tail, cmd->data_length, udev->data_size);
- }
- else if (se_cmd->data_direction == DMA_FROM_DEVICE) {
- struct scatterlist *sg;
- int i;
+ } else if (se_cmd->se_cmd_flags & SCF_BIDI) {
+ /* Discard data_out buffer */
+ UPDATE_HEAD(udev->data_tail,
+ (size_t)se_cmd->t_data_sg->length, udev->data_size);
- /* It'd be easier to look at entry's iovec again, but UAM */
- for_each_sg(se_cmd->t_data_sg, sg, se_cmd->t_data_nents, i) {
- size_t copy_bytes;
- void *to;
- void *from;
-
- copy_bytes = min((size_t)sg->length,
- head_to_end(udev->data_tail, udev->data_size));
-
- to = kmap_atomic(sg_page(sg)) + sg->offset;
- WARN_ON(sg->length + sg->offset > PAGE_SIZE);
- from = (void *) udev->mb_addr + udev->data_off + udev->data_tail;
- tcmu_flush_dcache_range(from, copy_bytes);
- memcpy(to, from, copy_bytes);
-
- UPDATE_HEAD(udev->data_tail, copy_bytes, udev->data_size);
-
- /* Uh oh, wrapped the data buffer for this sg's data */
- if (sg->length != copy_bytes) {
- from = (void *) udev->mb_addr + udev->data_off + udev->data_tail;
- WARN_ON(udev->data_tail);
- to += copy_bytes;
- copy_bytes = sg->length - copy_bytes;
- tcmu_flush_dcache_range(from, copy_bytes);
- memcpy(to, from, copy_bytes);
-
- UPDATE_HEAD(udev->data_tail, copy_bytes, udev->data_size);
- }
-
- kunmap_atomic(to);
- }
-
+ /* Get Data-In buffer */
+ gather_and_free_data_area(udev,
+ se_cmd->t_bidi_data_sg, se_cmd->t_bidi_data_nents);
+ } else if (se_cmd->data_direction == DMA_FROM_DEVICE) {
+ gather_and_free_data_area(udev,
+ se_cmd->t_data_sg, se_cmd->t_data_nents);
} else if (se_cmd->data_direction == DMA_TO_DEVICE) {
UPDATE_HEAD(udev->data_tail, cmd->data_length, udev->data_size);
- } else {
- pr_warn("TCMU: data direction was %d!\n", se_cmd->data_direction);
+ } else if (se_cmd->data_direction != DMA_NONE) {
+ pr_warn("TCMU: data direction was %d!\n",
+ se_cmd->data_direction);
}
target_complete_cmd(cmd->se_cmd, entry->rsp.scsi_status);
@@ -910,6 +954,14 @@
return -EINVAL;
}
+static void tcmu_dev_call_rcu(struct rcu_head *p)
+{
+ struct se_device *dev = container_of(p, struct se_device, rcu_head);
+ struct tcmu_dev *udev = TCMU_DEV(dev);
+
+ kfree(udev);
+}
+
static void tcmu_free_device(struct se_device *dev)
{
struct tcmu_dev *udev = TCMU_DEV(dev);
@@ -935,8 +987,7 @@
kfree(udev->uio_info.name);
kfree(udev->name);
}
-
- kfree(udev);
+ call_rcu(&dev->rcu_head, tcmu_dev_call_rcu);
}
enum {
@@ -1054,27 +1105,7 @@
return passthrough_parse_cdb(cmd, tcmu_pass_op);
}
-DEF_TB_DEV_ATTRIB_RO(tcmu, hw_pi_prot_type);
-TB_DEV_ATTR_RO(tcmu, hw_pi_prot_type);
-
-DEF_TB_DEV_ATTRIB_RO(tcmu, hw_block_size);
-TB_DEV_ATTR_RO(tcmu, hw_block_size);
-
-DEF_TB_DEV_ATTRIB_RO(tcmu, hw_max_sectors);
-TB_DEV_ATTR_RO(tcmu, hw_max_sectors);
-
-DEF_TB_DEV_ATTRIB_RO(tcmu, hw_queue_depth);
-TB_DEV_ATTR_RO(tcmu, hw_queue_depth);
-
-static struct configfs_attribute *tcmu_backend_dev_attrs[] = {
- &tcmu_dev_attrib_hw_pi_prot_type.attr,
- &tcmu_dev_attrib_hw_block_size.attr,
- &tcmu_dev_attrib_hw_max_sectors.attr,
- &tcmu_dev_attrib_hw_queue_depth.attr,
- NULL,
-};
-
-static struct se_subsystem_api tcmu_template = {
+static const struct target_backend_ops tcmu_ops = {
.name = "user",
.inquiry_prod = "USER",
.inquiry_rev = TCMU_VERSION,
@@ -1090,11 +1121,11 @@
.show_configfs_dev_params = tcmu_show_configfs_dev_params,
.get_device_type = sbc_get_device_type,
.get_blocks = tcmu_get_blocks,
+ .tb_dev_attrib_attrs = passthrough_attrib_attrs,
};
static int __init tcmu_module_init(void)
{
- struct target_backend_cits *tbc = &tcmu_template.tb_cits;
int ret;
BUILD_BUG_ON((sizeof(struct tcmu_cmd_entry) % TCMU_OP_ALIGN_SIZE) != 0);
@@ -1117,10 +1148,7 @@
goto out_unreg_device;
}
- target_core_setup_sub_cits(&tcmu_template);
- tbc->tb_dev_attrib_cit.ct_attrs = tcmu_backend_dev_attrs;
-
- ret = transport_subsystem_register(&tcmu_template);
+ ret = transport_backend_register(&tcmu_ops);
if (ret)
goto out_unreg_genl;
@@ -1138,7 +1166,7 @@
static void __exit tcmu_module_exit(void)
{
- transport_subsystem_release(&tcmu_template);
+ target_backend_unregister(&tcmu_ops);
genl_unregister_family(&tcmu_genl_family);
root_device_unregister(tcmu_root_device);
kmem_cache_destroy(tcmu_cmd_cache);
diff --git a/drivers/target/target_core_xcopy.c b/drivers/target/target_core_xcopy.c
index 5ec0d00..4515f52 100644
--- a/drivers/target/target_core_xcopy.c
+++ b/drivers/target/target_core_xcopy.c
@@ -31,7 +31,6 @@
#include <target/target_core_base.h>
#include <target/target_core_backend.h>
#include <target/target_core_fabric.h>
-#include <target/target_core_configfs.h>
#include "target_core_internal.h"
#include "target_core_pr.h"
@@ -348,8 +347,7 @@
unsigned char sense_buffer[TRANSPORT_SENSE_BUFFER];
};
-static struct se_port xcopy_pt_port;
-static struct se_portal_group xcopy_pt_tpg;
+struct se_portal_group xcopy_pt_tpg;
static struct se_session xcopy_pt_sess;
static struct se_node_acl xcopy_pt_nacl;
@@ -358,11 +356,6 @@
return "xcopy-pt";
}
-static u32 xcopy_pt_get_tag(struct se_cmd *se_cmd)
-{
- return 0;
-}
-
static int xcopy_pt_get_cmd_state(struct se_cmd *se_cmd)
{
return 0;
@@ -423,7 +416,6 @@
static const struct target_core_fabric_ops xcopy_pt_tfo = {
.get_fabric_name = xcopy_pt_get_fabric_name,
- .get_task_tag = xcopy_pt_get_tag,
.get_cmd_state = xcopy_pt_get_cmd_state,
.release_cmd = xcopy_pt_release_cmd,
.check_stop_free = xcopy_pt_check_stop_free,
@@ -445,17 +437,11 @@
return -ENOMEM;
}
- memset(&xcopy_pt_port, 0, sizeof(struct se_port));
- INIT_LIST_HEAD(&xcopy_pt_port.sep_alua_list);
- INIT_LIST_HEAD(&xcopy_pt_port.sep_list);
- mutex_init(&xcopy_pt_port.sep_tg_pt_md_mutex);
-
memset(&xcopy_pt_tpg, 0, sizeof(struct se_portal_group));
INIT_LIST_HEAD(&xcopy_pt_tpg.se_tpg_node);
INIT_LIST_HEAD(&xcopy_pt_tpg.acl_node_list);
INIT_LIST_HEAD(&xcopy_pt_tpg.tpg_sess_list);
- xcopy_pt_port.sep_tpg = &xcopy_pt_tpg;
xcopy_pt_tpg.se_tpg_tfo = &xcopy_pt_tfo;
memset(&xcopy_pt_nacl, 0, sizeof(struct se_node_acl));
@@ -496,10 +482,6 @@
*/
if (remote_port) {
xpt_cmd->remote_port = remote_port;
- pt_cmd->se_lun->lun_sep = &xcopy_pt_port;
- pr_debug("Setup emulated remote DEST xcopy_pt_port: %p to"
- " cmd->se_lun->lun_sep for X-COPY data PUSH\n",
- pt_cmd->se_lun->lun_sep);
} else {
pt_cmd->se_lun = ec_cmd->se_lun;
pt_cmd->se_dev = ec_cmd->se_dev;
@@ -519,10 +501,6 @@
*/
if (remote_port) {
xpt_cmd->remote_port = remote_port;
- pt_cmd->se_lun->lun_sep = &xcopy_pt_port;
- pr_debug("Setup emulated remote SRC xcopy_pt_port: %p to"
- " cmd->se_lun->lun_sep for X-COPY data PULL\n",
- pt_cmd->se_lun->lun_sep);
} else {
pt_cmd->se_lun = ec_cmd->se_lun;
pt_cmd->se_dev = ec_cmd->se_dev;
@@ -574,6 +552,7 @@
xpt_cmd->xcopy_op = xop;
target_xcopy_setup_pt_port(xpt_cmd, xop, remote_port);
+ cmd->tag = 0;
sense_rc = target_setup_cmd_from_cdb(cmd, cdb);
if (sense_rc) {
ret = -EINVAL;
diff --git a/drivers/target/tcm_fc/tcm_fc.h b/drivers/target/tcm_fc/tcm_fc.h
index 881deb3..39909da 100644
--- a/drivers/target/tcm_fc/tcm_fc.h
+++ b/drivers/target/tcm_fc/tcm_fc.h
@@ -80,8 +80,8 @@
* Node ACL for FC remote port session.
*/
struct ft_node_acl {
- struct ft_node_auth node_auth;
struct se_node_acl se_node_acl;
+ struct ft_node_auth node_auth;
};
struct ft_lun {
@@ -157,7 +157,6 @@
int ft_queue_data_in(struct se_cmd *);
int ft_write_pending(struct se_cmd *);
int ft_write_pending_status(struct se_cmd *);
-u32 ft_get_task_tag(struct se_cmd *);
int ft_get_cmd_state(struct se_cmd *);
void ft_queue_tm_resp(struct se_cmd *);
void ft_aborted_task(struct se_cmd *);
diff --git a/drivers/target/tcm_fc/tfc_cmd.c b/drivers/target/tcm_fc/tfc_cmd.c
index 1bf78e7..6803172 100644
--- a/drivers/target/tcm_fc/tfc_cmd.c
+++ b/drivers/target/tcm_fc/tfc_cmd.c
@@ -36,7 +36,6 @@
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
-#include <target/target_core_configfs.h>
#include <target/configfs_macros.h>
#include "tcm_fc.h"
@@ -243,15 +242,6 @@
return 0;
}
-u32 ft_get_task_tag(struct se_cmd *se_cmd)
-{
- struct ft_cmd *cmd = container_of(se_cmd, struct ft_cmd, se_cmd);
-
- if (cmd->aborted)
- return ~0;
- return fc_seq_exch(cmd->seq)->rxid;
-}
-
int ft_get_cmd_state(struct se_cmd *se_cmd)
{
return 0;
@@ -564,6 +554,7 @@
}
fc_seq_exch(cmd->seq)->lp->tt.seq_set_resp(cmd->seq, ft_recv_seq, cmd);
+ cmd->se_cmd.tag = fc_seq_exch(cmd->seq)->rxid;
/*
* Use a single se_cmd->cmd_kref as we expect to release se_cmd
* directly from ft_check_stop_free callback in response path.
diff --git a/drivers/target/tcm_fc/tfc_conf.c b/drivers/target/tcm_fc/tfc_conf.c
index 86b699b..1667093 100644
--- a/drivers/target/tcm_fc/tfc_conf.c
+++ b/drivers/target/tcm_fc/tfc_conf.c
@@ -39,13 +39,10 @@
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
#include <target/target_core_fabric_configfs.h>
-#include <target/target_core_configfs.h>
#include <target/configfs_macros.h>
#include "tcm_fc.h"
-static const struct target_core_fabric_ops ft_fabric_ops;
-
static LIST_HEAD(ft_wwn_list);
DEFINE_MUTEX(ft_lport_lock);
@@ -194,48 +191,17 @@
* Add ACL for an initiator. The ACL is named arbitrarily.
* The port_name and/or node_name are attributes.
*/
-static struct se_node_acl *ft_add_acl(
- struct se_portal_group *se_tpg,
- struct config_group *group,
- const char *name)
+static int ft_init_nodeacl(struct se_node_acl *nacl, const char *name)
{
- struct ft_node_acl *acl;
- struct ft_tpg *tpg;
+ struct ft_node_acl *acl =
+ container_of(nacl, struct ft_node_acl, se_node_acl);
u64 wwpn;
- u32 q_depth;
-
- pr_debug("add acl %s\n", name);
- tpg = container_of(se_tpg, struct ft_tpg, se_tpg);
if (ft_parse_wwn(name, &wwpn, 1) < 0)
- return ERR_PTR(-EINVAL);
+ return -EINVAL;
- acl = kzalloc(sizeof(struct ft_node_acl), GFP_KERNEL);
- if (!acl)
- return ERR_PTR(-ENOMEM);
acl->node_auth.port_name = wwpn;
-
- q_depth = 32; /* XXX bogus default - get from tpg? */
- return core_tpg_add_initiator_node_acl(&tpg->se_tpg,
- &acl->se_node_acl, name, q_depth);
-}
-
-static void ft_del_acl(struct se_node_acl *se_acl)
-{
- struct se_portal_group *se_tpg = se_acl->se_tpg;
- struct ft_tpg *tpg;
- struct ft_node_acl *acl = container_of(se_acl,
- struct ft_node_acl, se_node_acl);
-
- pr_debug("del acl %s\n",
- config_item_name(&se_acl->acl_group.cg_item));
-
- tpg = container_of(se_tpg, struct ft_tpg, se_tpg);
- pr_debug("del acl %p se_acl %p tpg %p se_tpg %p\n",
- acl, se_acl, tpg, &tpg->se_tpg);
-
- core_tpg_del_initiator_node_acl(&tpg->se_tpg, se_acl, 1);
- kfree(acl);
+ return 0;
}
struct ft_node_acl *ft_acl_get(struct ft_tpg *tpg, struct fc_rport_priv *rdata)
@@ -245,7 +211,7 @@
struct se_portal_group *se_tpg = &tpg->se_tpg;
struct se_node_acl *se_acl;
- spin_lock_irq(&se_tpg->acl_node_lock);
+ mutex_lock(&se_tpg->acl_node_mutex);
list_for_each_entry(se_acl, &se_tpg->acl_node_list, acl_list) {
acl = container_of(se_acl, struct ft_node_acl, se_node_acl);
pr_debug("acl %p port_name %llx\n",
@@ -259,33 +225,10 @@
break;
}
}
- spin_unlock_irq(&se_tpg->acl_node_lock);
+ mutex_unlock(&se_tpg->acl_node_mutex);
return found;
}
-static struct se_node_acl *ft_tpg_alloc_fabric_acl(struct se_portal_group *se_tpg)
-{
- struct ft_node_acl *acl;
-
- acl = kzalloc(sizeof(*acl), GFP_KERNEL);
- if (!acl) {
- pr_err("Unable to allocate struct ft_node_acl\n");
- return NULL;
- }
- pr_debug("acl %p\n", acl);
- return &acl->se_node_acl;
-}
-
-static void ft_tpg_release_fabric_acl(struct se_portal_group *se_tpg,
- struct se_node_acl *se_acl)
-{
- struct ft_node_acl *acl = container_of(se_acl,
- struct ft_node_acl, se_node_acl);
-
- pr_debug("acl %p\n", acl);
- kfree(acl);
-}
-
/*
* local_port port_group (tpg) ops.
*/
@@ -333,8 +276,7 @@
return NULL;
}
- ret = core_tpg_register(&ft_fabric_ops, wwn, &tpg->se_tpg,
- tpg, TRANSPORT_TPG_TYPE_NORMAL);
+ ret = core_tpg_register(wwn, &tpg->se_tpg, SCSI_PROTOCOL_FCP);
if (ret < 0) {
destroy_workqueue(wq);
kfree(tpg);
@@ -459,6 +401,11 @@
NULL,
};
+static inline struct ft_tpg *ft_tpg(struct se_portal_group *se_tpg)
+{
+ return container_of(se_tpg, struct ft_tpg, se_tpg);
+}
+
static char *ft_get_fabric_name(void)
{
return "fc";
@@ -466,25 +413,16 @@
static char *ft_get_fabric_wwn(struct se_portal_group *se_tpg)
{
- struct ft_tpg *tpg = se_tpg->se_tpg_fabric_ptr;
-
- return tpg->lport_wwn->name;
+ return ft_tpg(se_tpg)->lport_wwn->name;
}
static u16 ft_get_tag(struct se_portal_group *se_tpg)
{
- struct ft_tpg *tpg = se_tpg->se_tpg_fabric_ptr;
-
/*
* This tag is used when forming SCSI Name identifier in EVPD=1 0x83
* to represent the SCSI Target Port.
*/
- return tpg->index;
-}
-
-static u32 ft_get_default_depth(struct se_portal_group *se_tpg)
-{
- return 1;
+ return ft_tpg(se_tpg)->index;
}
static int ft_check_false(struct se_portal_group *se_tpg)
@@ -498,28 +436,20 @@
static u32 ft_tpg_get_inst_index(struct se_portal_group *se_tpg)
{
- struct ft_tpg *tpg = se_tpg->se_tpg_fabric_ptr;
-
- return tpg->index;
+ return ft_tpg(se_tpg)->index;
}
static const struct target_core_fabric_ops ft_fabric_ops = {
.module = THIS_MODULE,
.name = "fc",
+ .node_acl_size = sizeof(struct ft_node_acl),
.get_fabric_name = ft_get_fabric_name,
- .get_fabric_proto_ident = fc_get_fabric_proto_ident,
.tpg_get_wwn = ft_get_fabric_wwn,
.tpg_get_tag = ft_get_tag,
- .tpg_get_default_depth = ft_get_default_depth,
- .tpg_get_pr_transport_id = fc_get_pr_transport_id,
- .tpg_get_pr_transport_id_len = fc_get_pr_transport_id_len,
- .tpg_parse_pr_out_transport_id = fc_parse_pr_out_transport_id,
.tpg_check_demo_mode = ft_check_false,
.tpg_check_demo_mode_cache = ft_check_false,
.tpg_check_demo_mode_write_protect = ft_check_false,
.tpg_check_prod_mode_write_protect = ft_check_false,
- .tpg_alloc_fabric_acl = ft_tpg_alloc_fabric_acl,
- .tpg_release_fabric_acl = ft_tpg_release_fabric_acl,
.tpg_get_inst_index = ft_tpg_get_inst_index,
.check_stop_free = ft_check_stop_free,
.release_cmd = ft_release_cmd,
@@ -530,7 +460,6 @@
.write_pending = ft_write_pending,
.write_pending_status = ft_write_pending_status,
.set_default_node_attributes = ft_set_default_node_attr,
- .get_task_tag = ft_get_task_tag,
.get_cmd_state = ft_get_cmd_state,
.queue_data_in = ft_queue_data_in,
.queue_status = ft_queue_status,
@@ -544,12 +473,7 @@
.fabric_drop_wwn = &ft_del_wwn,
.fabric_make_tpg = &ft_add_tpg,
.fabric_drop_tpg = &ft_del_tpg,
- .fabric_post_link = NULL,
- .fabric_pre_unlink = NULL,
- .fabric_make_np = NULL,
- .fabric_drop_np = NULL,
- .fabric_make_nodeacl = &ft_add_acl,
- .fabric_drop_nodeacl = &ft_del_acl,
+ .fabric_init_nodeacl = &ft_init_nodeacl,
.tfc_wwn_attrs = ft_wwn_attrs,
.tfc_tpg_nacl_base_attrs = ft_nacl_base_attrs,
diff --git a/drivers/target/tcm_fc/tfc_io.c b/drivers/target/tcm_fc/tfc_io.c
index fe585d1..4b0fedd 100644
--- a/drivers/target/tcm_fc/tfc_io.c
+++ b/drivers/target/tcm_fc/tfc_io.c
@@ -44,7 +44,6 @@
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
-#include <target/target_core_configfs.h>
#include <target/configfs_macros.h>
#include "tcm_fc.h"
diff --git a/drivers/target/tcm_fc/tfc_sess.c b/drivers/target/tcm_fc/tfc_sess.c
index f2a616d..31a9e3f 100644
--- a/drivers/target/tcm_fc/tfc_sess.c
+++ b/drivers/target/tcm_fc/tfc_sess.c
@@ -36,7 +36,6 @@
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
-#include <target/target_core_configfs.h>
#include <target/configfs_macros.h>
#include "tcm_fc.h"
diff --git a/drivers/usb/gadget/legacy/tcm_usb_gadget.c b/drivers/usb/gadget/legacy/tcm_usb_gadget.c
index 6ce932f..c3c4808 100644
--- a/drivers/usb/gadget/legacy/tcm_usb_gadget.c
+++ b/drivers/usb/gadget/legacy/tcm_usb_gadget.c
@@ -20,7 +20,6 @@
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
#include <target/target_core_fabric_configfs.h>
-#include <target/target_core_configfs.h>
#include <target/configfs_macros.h>
#include <asm/unaligned.h>
@@ -28,8 +27,6 @@
USB_GADGET_COMPOSITE_OPTIONS();
-static const struct target_core_fabric_ops usbg_ops;
-
static inline struct f_uas *to_f_uas(struct usb_function *f)
{
return container_of(f, struct f_uas, function);
@@ -1111,6 +1108,7 @@
memcpy(cmd->cmd_buf, cmd_iu->cdb, cmd_len);
cmd->tag = be16_to_cpup(&cmd_iu->tag);
+ cmd->se_cmd.tag = cmd->tag;
if (fu->flags & USBG_USE_STREAMS) {
if (cmd->tag > UASP_SS_EP_COMP_NUM_STREAMS)
goto err;
@@ -1244,6 +1242,7 @@
cmd->unpacked_lun = cbw->Lun;
cmd->is_read = cbw->Flags & US_BULK_FLAG_IN ? 1 : 0;
cmd->data_len = le32_to_cpu(cbw->DataTransferLength);
+ cmd->se_cmd.tag = le32_to_cpu(cmd->bot_tag);
INIT_WORK(&cmd->work, bot_cmd_work);
ret = queue_work(tpg->workqueue, &cmd->work);
@@ -1273,23 +1272,6 @@
return "usb_gadget";
}
-static u8 usbg_get_fabric_proto_ident(struct se_portal_group *se_tpg)
-{
- struct usbg_tpg *tpg = container_of(se_tpg,
- struct usbg_tpg, se_tpg);
- struct usbg_tport *tport = tpg->tport;
- u8 proto_id;
-
- switch (tport->tport_proto_id) {
- case SCSI_PROTOCOL_SAS:
- default:
- proto_id = sas_get_fabric_proto_ident(se_tpg);
- break;
- }
-
- return proto_id;
-}
-
static char *usbg_get_fabric_wwn(struct se_portal_group *se_tpg)
{
struct usbg_tpg *tpg = container_of(se_tpg,
@@ -1306,97 +1288,6 @@
return tpg->tport_tpgt;
}
-static u32 usbg_get_default_depth(struct se_portal_group *se_tpg)
-{
- return 1;
-}
-
-static u32 usbg_get_pr_transport_id(
- struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl,
- struct t10_pr_registration *pr_reg,
- int *format_code,
- unsigned char *buf)
-{
- struct usbg_tpg *tpg = container_of(se_tpg,
- struct usbg_tpg, se_tpg);
- struct usbg_tport *tport = tpg->tport;
- int ret = 0;
-
- switch (tport->tport_proto_id) {
- case SCSI_PROTOCOL_SAS:
- default:
- ret = sas_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
- format_code, buf);
- break;
- }
-
- return ret;
-}
-
-static u32 usbg_get_pr_transport_id_len(
- struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl,
- struct t10_pr_registration *pr_reg,
- int *format_code)
-{
- struct usbg_tpg *tpg = container_of(se_tpg,
- struct usbg_tpg, se_tpg);
- struct usbg_tport *tport = tpg->tport;
- int ret = 0;
-
- switch (tport->tport_proto_id) {
- case SCSI_PROTOCOL_SAS:
- default:
- ret = sas_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
- format_code);
- break;
- }
-
- return ret;
-}
-
-static char *usbg_parse_pr_out_transport_id(
- struct se_portal_group *se_tpg,
- const char *buf,
- u32 *out_tid_len,
- char **port_nexus_ptr)
-{
- struct usbg_tpg *tpg = container_of(se_tpg,
- struct usbg_tpg, se_tpg);
- struct usbg_tport *tport = tpg->tport;
- char *tid = NULL;
-
- switch (tport->tport_proto_id) {
- case SCSI_PROTOCOL_SAS:
- default:
- tid = sas_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
- port_nexus_ptr);
- }
-
- return tid;
-}
-
-static struct se_node_acl *usbg_alloc_fabric_acl(struct se_portal_group *se_tpg)
-{
- struct usbg_nacl *nacl;
-
- nacl = kzalloc(sizeof(struct usbg_nacl), GFP_KERNEL);
- if (!nacl)
- return NULL;
-
- return &nacl->se_node_acl;
-}
-
-static void usbg_release_fabric_acl(
- struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl)
-{
- struct usbg_nacl *nacl = container_of(se_nacl,
- struct usbg_nacl, se_node_acl);
- kfree(nacl);
-}
-
static u32 usbg_tpg_get_inst_index(struct se_portal_group *se_tpg)
{
return 1;
@@ -1447,18 +1338,6 @@
return;
}
-static u32 usbg_get_task_tag(struct se_cmd *se_cmd)
-{
- struct usbg_cmd *cmd = container_of(se_cmd, struct usbg_cmd,
- se_cmd);
- struct f_uas *fu = cmd->fu;
-
- if (fu->flags & USBG_IS_BOT)
- return le32_to_cpu(cmd->bot_tag);
- else
- return cmd->tag;
-}
-
static int usbg_get_cmd_state(struct se_cmd *se_cmd)
{
return 0;
@@ -1488,50 +1367,11 @@
return n;
}
-static struct se_node_acl *usbg_make_nodeacl(
- struct se_portal_group *se_tpg,
- struct config_group *group,
- const char *name)
+static int usbg_init_nodeacl(struct se_node_acl *se_nacl, const char *name)
{
- struct se_node_acl *se_nacl, *se_nacl_new;
- struct usbg_nacl *nacl;
- u64 wwpn = 0;
- u32 nexus_depth;
- const char *wnn_name;
-
- wnn_name = usbg_check_wwn(name);
- if (!wnn_name)
- return ERR_PTR(-EINVAL);
- se_nacl_new = usbg_alloc_fabric_acl(se_tpg);
- if (!(se_nacl_new))
- return ERR_PTR(-ENOMEM);
-
- nexus_depth = 1;
- /*
- * se_nacl_new may be released by core_tpg_add_initiator_node_acl()
- * when converting a NodeACL from demo mode -> explict
- */
- se_nacl = core_tpg_add_initiator_node_acl(se_tpg, se_nacl_new,
- name, nexus_depth);
- if (IS_ERR(se_nacl)) {
- usbg_release_fabric_acl(se_tpg, se_nacl_new);
- return se_nacl;
- }
- /*
- * Locate our struct usbg_nacl and set the FC Nport WWPN
- */
- nacl = container_of(se_nacl, struct usbg_nacl, se_node_acl);
- nacl->iport_wwpn = wwpn;
- snprintf(nacl->iport_name, sizeof(nacl->iport_name), "%s", name);
- return se_nacl;
-}
-
-static void usbg_drop_nodeacl(struct se_node_acl *se_acl)
-{
- struct usbg_nacl *nacl = container_of(se_acl,
- struct usbg_nacl, se_node_acl);
- core_tpg_del_initiator_node_acl(se_acl->se_tpg, se_acl, 1);
- kfree(nacl);
+ if (!usbg_check_wwn(name))
+ return -EINVAL;
+ return 0;
}
struct usbg_tpg *the_only_tpg_I_currently_have;
@@ -1571,8 +1411,11 @@
tpg->tport = tport;
tpg->tport_tpgt = tpgt;
- ret = core_tpg_register(&usbg_ops, wwn, &tpg->se_tpg, tpg,
- TRANSPORT_TPG_TYPE_NORMAL);
+ /*
+ * SPC doesn't assign a protocol identifier for USB-SCSI, so we
+ * pretend to be SAS..
+ */
+ ret = core_tpg_register(wwn, &tpg->se_tpg, SCSI_PROTOCOL_SAS);
if (ret < 0) {
destroy_workqueue(tpg->workqueue);
kfree(tpg);
@@ -1866,19 +1709,12 @@
.module = THIS_MODULE,
.name = "usb_gadget",
.get_fabric_name = usbg_get_fabric_name,
- .get_fabric_proto_ident = usbg_get_fabric_proto_ident,
.tpg_get_wwn = usbg_get_fabric_wwn,
.tpg_get_tag = usbg_get_tag,
- .tpg_get_default_depth = usbg_get_default_depth,
- .tpg_get_pr_transport_id = usbg_get_pr_transport_id,
- .tpg_get_pr_transport_id_len = usbg_get_pr_transport_id_len,
- .tpg_parse_pr_out_transport_id = usbg_parse_pr_out_transport_id,
.tpg_check_demo_mode = usbg_check_true,
.tpg_check_demo_mode_cache = usbg_check_false,
.tpg_check_demo_mode_write_protect = usbg_check_false,
.tpg_check_prod_mode_write_protect = usbg_check_false,
- .tpg_alloc_fabric_acl = usbg_alloc_fabric_acl,
- .tpg_release_fabric_acl = usbg_release_fabric_acl,
.tpg_get_inst_index = usbg_tpg_get_inst_index,
.release_cmd = usbg_release_cmd,
.shutdown_session = usbg_shutdown_session,
@@ -1888,7 +1724,6 @@
.write_pending = usbg_send_write_request,
.write_pending_status = usbg_write_pending_status,
.set_default_node_attributes = usbg_set_default_node_attrs,
- .get_task_tag = usbg_get_task_tag,
.get_cmd_state = usbg_get_cmd_state,
.queue_data_in = usbg_send_read_response,
.queue_status = usbg_send_status_response,
@@ -1902,10 +1737,7 @@
.fabric_drop_tpg = usbg_drop_tpg,
.fabric_post_link = usbg_port_link,
.fabric_pre_unlink = usbg_port_unlink,
- .fabric_make_np = NULL,
- .fabric_drop_np = NULL,
- .fabric_make_nodeacl = usbg_make_nodeacl,
- .fabric_drop_nodeacl = usbg_drop_nodeacl,
+ .fabric_init_nodeacl = usbg_init_nodeacl,
.tfc_wwn_attrs = usbg_wwn_attrs,
.tfc_tpg_base_attrs = usbg_base_attrs,
diff --git a/drivers/usb/gadget/legacy/tcm_usb_gadget.h b/drivers/usb/gadget/legacy/tcm_usb_gadget.h
index 9fb3544..0b749e1 100644
--- a/drivers/usb/gadget/legacy/tcm_usb_gadget.h
+++ b/drivers/usb/gadget/legacy/tcm_usb_gadget.h
@@ -24,15 +24,6 @@
#define USB_G_ALT_INT_BBB 0
#define USB_G_ALT_INT_UAS 1
-struct usbg_nacl {
- /* Binary World Wide unique Port Name for SAS Initiator port */
- u64 iport_wwpn;
- /* ASCII formatted WWPN for Sas Initiator port */
- char iport_name[USBG_NAMELEN];
- /* Returned by usbg_make_nodeacl() */
- struct se_node_acl se_node_acl;
-};
-
struct tcm_usbg_nexus {
struct se_session *tvn_se_sess;
};
@@ -52,8 +43,6 @@
};
struct usbg_tport {
- /* SCSI protocol the tport is providing */
- u8 tport_proto_id;
/* Binary World Wide unique Port Name for SAS Target port */
u64 tport_wwpn;
/* ASCII formatted WWPN for SAS Target port */
diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c
index 55722fe..dfcc02c 100644
--- a/drivers/vhost/scsi.c
+++ b/drivers/vhost/scsi.c
@@ -43,7 +43,6 @@
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
#include <target/target_core_fabric_configfs.h>
-#include <target/target_core_configfs.h>
#include <target/configfs_macros.h>
#include <linux/vhost.h>
#include <linux/virtio_scsi.h>
@@ -117,15 +116,6 @@
struct se_session *tvn_se_sess;
};
-struct vhost_scsi_nacl {
- /* Binary World Wide unique Port Name for Vhost Initiator port */
- u64 iport_wwpn;
- /* ASCII formatted WWPN for Sas Initiator port */
- char iport_name[VHOST_SCSI_NAMELEN];
- /* Returned by vhost_scsi_make_nodeacl() */
- struct se_node_acl se_node_acl;
-};
-
struct vhost_scsi_tpg {
/* Vhost port target portal group tag for TCM */
u16 tport_tpgt;
@@ -218,7 +208,6 @@
int vs_events_nr; /* num of pending events, protected by vq->mutex */
};
-static struct target_core_fabric_ops vhost_scsi_ops;
static struct workqueue_struct *vhost_scsi_workqueue;
/* Global spinlock to protect vhost_scsi TPG list for vhost IOCTL access */
@@ -299,28 +288,6 @@
return "vhost";
}
-static u8 vhost_scsi_get_fabric_proto_ident(struct se_portal_group *se_tpg)
-{
- struct vhost_scsi_tpg *tpg = container_of(se_tpg,
- struct vhost_scsi_tpg, se_tpg);
- struct vhost_scsi_tport *tport = tpg->tport;
-
- switch (tport->tport_proto_id) {
- case SCSI_PROTOCOL_SAS:
- return sas_get_fabric_proto_ident(se_tpg);
- case SCSI_PROTOCOL_FCP:
- return fc_get_fabric_proto_ident(se_tpg);
- case SCSI_PROTOCOL_ISCSI:
- return iscsi_get_fabric_proto_ident(se_tpg);
- default:
- pr_err("Unknown tport_proto_id: 0x%02x, using"
- " SAS emulation\n", tport->tport_proto_id);
- break;
- }
-
- return sas_get_fabric_proto_ident(se_tpg);
-}
-
static char *vhost_scsi_get_fabric_wwn(struct se_portal_group *se_tpg)
{
struct vhost_scsi_tpg *tpg = container_of(se_tpg,
@@ -337,102 +304,6 @@
return tpg->tport_tpgt;
}
-static u32 vhost_scsi_get_default_depth(struct se_portal_group *se_tpg)
-{
- return 1;
-}
-
-static u32
-vhost_scsi_get_pr_transport_id(struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl,
- struct t10_pr_registration *pr_reg,
- int *format_code,
- unsigned char *buf)
-{
- struct vhost_scsi_tpg *tpg = container_of(se_tpg,
- struct vhost_scsi_tpg, se_tpg);
- struct vhost_scsi_tport *tport = tpg->tport;
-
- switch (tport->tport_proto_id) {
- case SCSI_PROTOCOL_SAS:
- return sas_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
- format_code, buf);
- case SCSI_PROTOCOL_FCP:
- return fc_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
- format_code, buf);
- case SCSI_PROTOCOL_ISCSI:
- return iscsi_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
- format_code, buf);
- default:
- pr_err("Unknown tport_proto_id: 0x%02x, using"
- " SAS emulation\n", tport->tport_proto_id);
- break;
- }
-
- return sas_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
- format_code, buf);
-}
-
-static u32
-vhost_scsi_get_pr_transport_id_len(struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl,
- struct t10_pr_registration *pr_reg,
- int *format_code)
-{
- struct vhost_scsi_tpg *tpg = container_of(se_tpg,
- struct vhost_scsi_tpg, se_tpg);
- struct vhost_scsi_tport *tport = tpg->tport;
-
- switch (tport->tport_proto_id) {
- case SCSI_PROTOCOL_SAS:
- return sas_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
- format_code);
- case SCSI_PROTOCOL_FCP:
- return fc_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
- format_code);
- case SCSI_PROTOCOL_ISCSI:
- return iscsi_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
- format_code);
- default:
- pr_err("Unknown tport_proto_id: 0x%02x, using"
- " SAS emulation\n", tport->tport_proto_id);
- break;
- }
-
- return sas_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
- format_code);
-}
-
-static char *
-vhost_scsi_parse_pr_out_transport_id(struct se_portal_group *se_tpg,
- const char *buf,
- u32 *out_tid_len,
- char **port_nexus_ptr)
-{
- struct vhost_scsi_tpg *tpg = container_of(se_tpg,
- struct vhost_scsi_tpg, se_tpg);
- struct vhost_scsi_tport *tport = tpg->tport;
-
- switch (tport->tport_proto_id) {
- case SCSI_PROTOCOL_SAS:
- return sas_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
- port_nexus_ptr);
- case SCSI_PROTOCOL_FCP:
- return fc_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
- port_nexus_ptr);
- case SCSI_PROTOCOL_ISCSI:
- return iscsi_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
- port_nexus_ptr);
- default:
- pr_err("Unknown tport_proto_id: 0x%02x, using"
- " SAS emulation\n", tport->tport_proto_id);
- break;
- }
-
- return sas_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
- port_nexus_ptr);
-}
-
static int vhost_scsi_check_prot_fabric_only(struct se_portal_group *se_tpg)
{
struct vhost_scsi_tpg *tpg = container_of(se_tpg,
@@ -441,29 +312,6 @@
return tpg->tv_fabric_prot_type;
}
-static struct se_node_acl *
-vhost_scsi_alloc_fabric_acl(struct se_portal_group *se_tpg)
-{
- struct vhost_scsi_nacl *nacl;
-
- nacl = kzalloc(sizeof(struct vhost_scsi_nacl), GFP_KERNEL);
- if (!nacl) {
- pr_err("Unable to allocate struct vhost_scsi_nacl\n");
- return NULL;
- }
-
- return &nacl->se_node_acl;
-}
-
-static void
-vhost_scsi_release_fabric_acl(struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl)
-{
- struct vhost_scsi_nacl *nacl = container_of(se_nacl,
- struct vhost_scsi_nacl, se_node_acl);
- kfree(nacl);
-}
-
static u32 vhost_scsi_tpg_get_inst_index(struct se_portal_group *se_tpg)
{
return 1;
@@ -521,11 +369,6 @@
return;
}
-static u32 vhost_scsi_get_task_tag(struct se_cmd *se_cmd)
-{
- return 0;
-}
-
static int vhost_scsi_get_cmd_state(struct se_cmd *se_cmd)
{
return 0;
@@ -609,7 +452,7 @@
static int vhost_scsi_check_stop_free(struct se_cmd *se_cmd)
{
- return target_put_sess_cmd(se_cmd->se_sess, se_cmd);
+ return target_put_sess_cmd(se_cmd);
}
static void
@@ -970,6 +813,7 @@
}
tv_nexus = cmd->tvc_nexus;
+ se_cmd->tag = 0;
rc = target_submit_cmd_map_sgls(se_cmd, tv_nexus->tvn_se_sess,
cmd->tvc_cdb, &cmd->tvc_sense_buf[0],
cmd->tvc_lun, cmd->tvc_exp_data_len,
@@ -1824,50 +1668,6 @@
mutex_unlock(&vhost_scsi_mutex);
}
-static struct se_node_acl *
-vhost_scsi_make_nodeacl(struct se_portal_group *se_tpg,
- struct config_group *group,
- const char *name)
-{
- struct se_node_acl *se_nacl, *se_nacl_new;
- struct vhost_scsi_nacl *nacl;
- u64 wwpn = 0;
- u32 nexus_depth;
-
- /* vhost_scsi_parse_wwn(name, &wwpn, 1) < 0)
- return ERR_PTR(-EINVAL); */
- se_nacl_new = vhost_scsi_alloc_fabric_acl(se_tpg);
- if (!se_nacl_new)
- return ERR_PTR(-ENOMEM);
-
- nexus_depth = 1;
- /*
- * se_nacl_new may be released by core_tpg_add_initiator_node_acl()
- * when converting a NodeACL from demo mode -> explict
- */
- se_nacl = core_tpg_add_initiator_node_acl(se_tpg, se_nacl_new,
- name, nexus_depth);
- if (IS_ERR(se_nacl)) {
- vhost_scsi_release_fabric_acl(se_tpg, se_nacl_new);
- return se_nacl;
- }
- /*
- * Locate our struct vhost_scsi_nacl and set the FC Nport WWPN
- */
- nacl = container_of(se_nacl, struct vhost_scsi_nacl, se_node_acl);
- nacl->iport_wwpn = wwpn;
-
- return se_nacl;
-}
-
-static void vhost_scsi_drop_nodeacl(struct se_node_acl *se_acl)
-{
- struct vhost_scsi_nacl *nacl = container_of(se_acl,
- struct vhost_scsi_nacl, se_node_acl);
- core_tpg_del_initiator_node_acl(se_acl->se_tpg, se_acl, 1);
- kfree(nacl);
-}
-
static void vhost_scsi_free_cmd_map_res(struct vhost_scsi_nexus *nexus,
struct se_session *se_sess)
{
@@ -2202,8 +2002,7 @@
tpg->tport = tport;
tpg->tport_tpgt = tpgt;
- ret = core_tpg_register(&vhost_scsi_ops, wwn,
- &tpg->se_tpg, tpg, TRANSPORT_TPG_TYPE_NORMAL);
+ ret = core_tpg_register(wwn, &tpg->se_tpg, tport->tport_proto_id);
if (ret < 0) {
kfree(tpg);
return NULL;
@@ -2327,20 +2126,13 @@
.module = THIS_MODULE,
.name = "vhost",
.get_fabric_name = vhost_scsi_get_fabric_name,
- .get_fabric_proto_ident = vhost_scsi_get_fabric_proto_ident,
.tpg_get_wwn = vhost_scsi_get_fabric_wwn,
.tpg_get_tag = vhost_scsi_get_tpgt,
- .tpg_get_default_depth = vhost_scsi_get_default_depth,
- .tpg_get_pr_transport_id = vhost_scsi_get_pr_transport_id,
- .tpg_get_pr_transport_id_len = vhost_scsi_get_pr_transport_id_len,
- .tpg_parse_pr_out_transport_id = vhost_scsi_parse_pr_out_transport_id,
.tpg_check_demo_mode = vhost_scsi_check_true,
.tpg_check_demo_mode_cache = vhost_scsi_check_true,
.tpg_check_demo_mode_write_protect = vhost_scsi_check_false,
.tpg_check_prod_mode_write_protect = vhost_scsi_check_false,
.tpg_check_prot_fabric_only = vhost_scsi_check_prot_fabric_only,
- .tpg_alloc_fabric_acl = vhost_scsi_alloc_fabric_acl,
- .tpg_release_fabric_acl = vhost_scsi_release_fabric_acl,
.tpg_get_inst_index = vhost_scsi_tpg_get_inst_index,
.release_cmd = vhost_scsi_release_cmd,
.check_stop_free = vhost_scsi_check_stop_free,
@@ -2351,7 +2143,6 @@
.write_pending = vhost_scsi_write_pending,
.write_pending_status = vhost_scsi_write_pending_status,
.set_default_node_attributes = vhost_scsi_set_default_node_attrs,
- .get_task_tag = vhost_scsi_get_task_tag,
.get_cmd_state = vhost_scsi_get_cmd_state,
.queue_data_in = vhost_scsi_queue_data_in,
.queue_status = vhost_scsi_queue_status,
@@ -2366,10 +2157,6 @@
.fabric_drop_tpg = vhost_scsi_drop_tpg,
.fabric_post_link = vhost_scsi_port_link,
.fabric_pre_unlink = vhost_scsi_port_unlink,
- .fabric_make_np = NULL,
- .fabric_drop_np = NULL,
- .fabric_make_nodeacl = vhost_scsi_make_nodeacl,
- .fabric_drop_nodeacl = vhost_scsi_drop_nodeacl,
.tfc_wwn_attrs = vhost_scsi_wwn_attrs,
.tfc_tpg_base_attrs = vhost_scsi_tpg_attrs,
diff --git a/drivers/xen/xen-scsiback.c b/drivers/xen/xen-scsiback.c
index 39223c3..9eeefd7 100644
--- a/drivers/xen/xen-scsiback.c
+++ b/drivers/xen/xen-scsiback.c
@@ -53,7 +53,6 @@
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
-#include <target/target_core_configfs.h>
#include <target/target_core_fabric_configfs.h>
#include <asm/hypervisor.h>
@@ -201,8 +200,6 @@
static DEFINE_MUTEX(scsiback_mutex);
static LIST_HEAD(scsiback_list);
-static const struct target_core_fabric_ops scsiback_ops;
-
static void scsiback_get(struct vscsibk_info *info)
{
atomic_inc(&info->nr_unreplied_reqs);
@@ -397,6 +394,7 @@
memset(se_cmd, 0, sizeof(*se_cmd));
scsiback_get(pending_req->info);
+ se_cmd->tag = pending_req->rqid;
rc = target_submit_cmd_map_sgls(se_cmd, sess, pending_req->cmnd,
pending_req->sense_buffer, pending_req->v2p->lun,
pending_req->data_len, 0,
@@ -863,7 +861,8 @@
struct list_head *head = &(info->v2p_entry_lists);
unsigned long flags;
char *lunp;
- unsigned int lun;
+ unsigned long long unpacked_lun;
+ struct se_lun *se_lun;
struct scsiback_tpg *tpg_entry, *tpg = NULL;
char *error = "doesn't exist";
@@ -874,24 +873,27 @@
}
*lunp = 0;
lunp++;
- if (kstrtouint(lunp, 10, &lun) || lun >= TRANSPORT_MAX_LUNS_PER_TPG) {
+ err = kstrtoull(lunp, 10, &unpacked_lun);
+ if (err < 0) {
pr_err("lun number not valid: %s\n", lunp);
- return -EINVAL;
+ return err;
}
mutex_lock(&scsiback_mutex);
list_for_each_entry(tpg_entry, &scsiback_list, tv_tpg_list) {
if (!strcmp(phy, tpg_entry->tport->tport_name) ||
!strcmp(phy, tpg_entry->param_alias)) {
- spin_lock(&tpg_entry->se_tpg.tpg_lun_lock);
- if (tpg_entry->se_tpg.tpg_lun_list[lun]->lun_status ==
- TRANSPORT_LUN_STATUS_ACTIVE) {
- if (!tpg_entry->tpg_nexus)
- error = "nexus undefined";
- else
- tpg = tpg_entry;
+ mutex_lock(&tpg_entry->se_tpg.tpg_lun_mutex);
+ hlist_for_each_entry(se_lun, &tpg_entry->se_tpg.tpg_lun_hlist, link) {
+ if (se_lun->unpacked_lun == unpacked_lun) {
+ if (!tpg_entry->tpg_nexus)
+ error = "nexus undefined";
+ else
+ tpg = tpg_entry;
+ break;
+ }
}
- spin_unlock(&tpg_entry->se_tpg.tpg_lun_lock);
+ mutex_unlock(&tpg_entry->se_tpg.tpg_lun_mutex);
break;
}
}
@@ -903,7 +905,7 @@
mutex_unlock(&scsiback_mutex);
if (!tpg) {
- pr_err("%s:%d %s\n", phy, lun, error);
+ pr_err("%s:%llu %s\n", phy, unpacked_lun, error);
return -ENODEV;
}
@@ -931,7 +933,7 @@
kref_init(&new->kref);
new->v = *v;
new->tpg = tpg;
- new->lun = lun;
+ new->lun = unpacked_lun;
list_add_tail(&new->l, head);
out:
@@ -1251,28 +1253,6 @@
return "Unknown";
}
-static u8 scsiback_get_fabric_proto_ident(struct se_portal_group *se_tpg)
-{
- struct scsiback_tpg *tpg = container_of(se_tpg,
- struct scsiback_tpg, se_tpg);
- struct scsiback_tport *tport = tpg->tport;
-
- switch (tport->tport_proto_id) {
- case SCSI_PROTOCOL_SAS:
- return sas_get_fabric_proto_ident(se_tpg);
- case SCSI_PROTOCOL_FCP:
- return fc_get_fabric_proto_ident(se_tpg);
- case SCSI_PROTOCOL_ISCSI:
- return iscsi_get_fabric_proto_ident(se_tpg);
- default:
- pr_err("Unknown tport_proto_id: 0x%02x, using SAS emulation\n",
- tport->tport_proto_id);
- break;
- }
-
- return sas_get_fabric_proto_ident(se_tpg);
-}
-
static char *scsiback_get_fabric_wwn(struct se_portal_group *se_tpg)
{
struct scsiback_tpg *tpg = container_of(se_tpg,
@@ -1289,102 +1269,6 @@
return tpg->tport_tpgt;
}
-static u32 scsiback_get_default_depth(struct se_portal_group *se_tpg)
-{
- return 1;
-}
-
-static u32
-scsiback_get_pr_transport_id(struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl,
- struct t10_pr_registration *pr_reg,
- int *format_code,
- unsigned char *buf)
-{
- struct scsiback_tpg *tpg = container_of(se_tpg,
- struct scsiback_tpg, se_tpg);
- struct scsiback_tport *tport = tpg->tport;
-
- switch (tport->tport_proto_id) {
- case SCSI_PROTOCOL_SAS:
- return sas_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
- format_code, buf);
- case SCSI_PROTOCOL_FCP:
- return fc_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
- format_code, buf);
- case SCSI_PROTOCOL_ISCSI:
- return iscsi_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
- format_code, buf);
- default:
- pr_err("Unknown tport_proto_id: 0x%02x, using SAS emulation\n",
- tport->tport_proto_id);
- break;
- }
-
- return sas_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
- format_code, buf);
-}
-
-static u32
-scsiback_get_pr_transport_id_len(struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl,
- struct t10_pr_registration *pr_reg,
- int *format_code)
-{
- struct scsiback_tpg *tpg = container_of(se_tpg,
- struct scsiback_tpg, se_tpg);
- struct scsiback_tport *tport = tpg->tport;
-
- switch (tport->tport_proto_id) {
- case SCSI_PROTOCOL_SAS:
- return sas_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
- format_code);
- case SCSI_PROTOCOL_FCP:
- return fc_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
- format_code);
- case SCSI_PROTOCOL_ISCSI:
- return iscsi_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
- format_code);
- default:
- pr_err("Unknown tport_proto_id: 0x%02x, using SAS emulation\n",
- tport->tport_proto_id);
- break;
- }
-
- return sas_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
- format_code);
-}
-
-static char *
-scsiback_parse_pr_out_transport_id(struct se_portal_group *se_tpg,
- const char *buf,
- u32 *out_tid_len,
- char **port_nexus_ptr)
-{
- struct scsiback_tpg *tpg = container_of(se_tpg,
- struct scsiback_tpg, se_tpg);
- struct scsiback_tport *tport = tpg->tport;
-
- switch (tport->tport_proto_id) {
- case SCSI_PROTOCOL_SAS:
- return sas_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
- port_nexus_ptr);
- case SCSI_PROTOCOL_FCP:
- return fc_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
- port_nexus_ptr);
- case SCSI_PROTOCOL_ISCSI:
- return iscsi_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
- port_nexus_ptr);
- default:
- pr_err("Unknown tport_proto_id: 0x%02x, using SAS emulation\n",
- tport->tport_proto_id);
- break;
- }
-
- return sas_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
- port_nexus_ptr);
-}
-
static struct se_wwn *
scsiback_make_tport(struct target_fabric_configfs *tf,
struct config_group *group,
@@ -1451,19 +1335,6 @@
kfree(tport);
}
-static struct se_node_acl *
-scsiback_alloc_fabric_acl(struct se_portal_group *se_tpg)
-{
- return kzalloc(sizeof(struct se_node_acl), GFP_KERNEL);
-}
-
-static void
-scsiback_release_fabric_acl(struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl)
-{
- kfree(se_nacl);
-}
-
static u32 scsiback_tpg_get_inst_index(struct se_portal_group *se_tpg)
{
return 1;
@@ -1522,14 +1393,6 @@
{
}
-static u32 scsiback_get_task_tag(struct se_cmd *se_cmd)
-{
- struct vscsibk_pend *pending_req = container_of(se_cmd,
- struct vscsibk_pend, se_cmd);
-
- return pending_req->rqid;
-}
-
static int scsiback_get_cmd_state(struct se_cmd *se_cmd)
{
return 0;
@@ -1898,8 +1761,7 @@
tpg->tport = tport;
tpg->tport_tpgt = tpgt;
- ret = core_tpg_register(&scsiback_ops, wwn,
- &tpg->se_tpg, tpg, TRANSPORT_TPG_TYPE_NORMAL);
+ ret = core_tpg_register(wwn, &tpg->se_tpg, tport->tport_proto_id);
if (ret < 0) {
kfree(tpg);
return NULL;
@@ -1944,23 +1806,15 @@
.module = THIS_MODULE,
.name = "xen-pvscsi",
.get_fabric_name = scsiback_get_fabric_name,
- .get_fabric_proto_ident = scsiback_get_fabric_proto_ident,
.tpg_get_wwn = scsiback_get_fabric_wwn,
.tpg_get_tag = scsiback_get_tag,
- .tpg_get_default_depth = scsiback_get_default_depth,
- .tpg_get_pr_transport_id = scsiback_get_pr_transport_id,
- .tpg_get_pr_transport_id_len = scsiback_get_pr_transport_id_len,
- .tpg_parse_pr_out_transport_id = scsiback_parse_pr_out_transport_id,
.tpg_check_demo_mode = scsiback_check_true,
.tpg_check_demo_mode_cache = scsiback_check_true,
.tpg_check_demo_mode_write_protect = scsiback_check_false,
.tpg_check_prod_mode_write_protect = scsiback_check_false,
- .tpg_alloc_fabric_acl = scsiback_alloc_fabric_acl,
- .tpg_release_fabric_acl = scsiback_release_fabric_acl,
.tpg_get_inst_index = scsiback_tpg_get_inst_index,
.check_stop_free = scsiback_check_stop_free,
.release_cmd = scsiback_release_cmd,
- .put_session = NULL,
.shutdown_session = scsiback_shutdown_session,
.close_session = scsiback_close_session,
.sess_get_index = scsiback_sess_get_index,
@@ -1968,7 +1822,6 @@
.write_pending = scsiback_write_pending,
.write_pending_status = scsiback_write_pending_status,
.set_default_node_attributes = scsiback_set_default_node_attrs,
- .get_task_tag = scsiback_get_task_tag,
.get_cmd_state = scsiback_get_cmd_state,
.queue_data_in = scsiback_queue_data_in,
.queue_status = scsiback_queue_status,
@@ -1983,12 +1836,6 @@
.fabric_drop_tpg = scsiback_drop_tpg,
.fabric_post_link = scsiback_port_link,
.fabric_pre_unlink = scsiback_port_unlink,
- .fabric_make_np = NULL,
- .fabric_drop_np = NULL,
-#if 0
- .fabric_make_nodeacl = scsiback_make_nodeacl,
- .fabric_drop_nodeacl = scsiback_drop_nodeacl,
-#endif
.tfc_wwn_attrs = scsiback_wwn_attrs,
.tfc_tpg_base_attrs = scsiback_tpg_attrs,
diff --git a/include/linux/crc-t10dif.h b/include/linux/crc-t10dif.h
index cf53d07..d81961e 100644
--- a/include/linux/crc-t10dif.h
+++ b/include/linux/crc-t10dif.h
@@ -9,5 +9,6 @@
extern __u16 crc_t10dif_generic(__u16 crc, const unsigned char *buffer,
size_t len);
extern __u16 crc_t10dif(unsigned char const *, size_t);
+extern __u16 crc_t10dif_update(__u16 crc, unsigned char const *, size_t);
#endif
diff --git a/include/target/iscsi/iscsi_target_core.h b/include/target/iscsi/iscsi_target_core.h
index 006983b..34117b8 100644
--- a/include/target/iscsi/iscsi_target_core.h
+++ b/include/target/iscsi/iscsi_target_core.h
@@ -247,10 +247,6 @@
u8 DataDigest; /* [0,1] == [None,CRC32C] */
u32 MaxRecvDataSegmentLength; /* [512..2**24-1] */
u32 MaxXmitDataSegmentLength; /* [512..2**24-1] */
- u8 OFMarker; /* [0,1] == [No,Yes] */
- u8 IFMarker; /* [0,1] == [No,Yes] */
- u32 OFMarkInt; /* [1..65535] */
- u32 IFMarkInt; /* [1..65535] */
/*
* iSER specific connection parameters
*/
@@ -531,12 +527,6 @@
u32 exp_statsn;
/* Per connection status sequence number */
u32 stat_sn;
- /* IFMarkInt's Current Value */
- u32 if_marker;
- /* OFMarkInt's Current Value */
- u32 of_marker;
- /* Used for calculating OFMarker offset to next PDU */
- u32 of_marker_offset;
#define IPV6_ADDRESS_SPACE 48
unsigned char login_ip[IPV6_ADDRESS_SPACE];
unsigned char local_ip[IPV6_ADDRESS_SPACE];
@@ -754,10 +744,10 @@
};
struct iscsi_node_acl {
+ struct se_node_acl se_node_acl;
struct iscsi_node_attrib node_attrib;
struct iscsi_node_auth node_auth;
struct iscsi_node_stat_grps node_stat_grps;
- struct se_node_acl se_node_acl;
};
struct iscsi_tpg_attrib {
diff --git a/include/target/target_core_backend.h b/include/target/target_core_backend.h
index 5f12257..1e5c8f9 100644
--- a/include/target/target_core_backend.h
+++ b/include/target/target_core_backend.h
@@ -3,18 +3,7 @@
#define TRANSPORT_FLAG_PASSTHROUGH 1
-struct target_backend_cits {
- struct config_item_type tb_dev_cit;
- struct config_item_type tb_dev_attrib_cit;
- struct config_item_type tb_dev_pr_cit;
- struct config_item_type tb_dev_wwn_cit;
- struct config_item_type tb_dev_alua_tg_pt_gps_cit;
- struct config_item_type tb_dev_stat_cit;
-};
-
-struct se_subsystem_api {
- struct list_head sub_api_list;
-
+struct target_backend_ops {
char name[16];
char inquiry_prod[16];
char inquiry_rev[4];
@@ -52,7 +41,7 @@
int (*format_prot)(struct se_device *);
void (*free_prot)(struct se_device *);
- struct target_backend_cits tb_cits;
+ struct configfs_attribute **tb_dev_attrib_attrs;
};
struct sbc_ops {
@@ -60,12 +49,12 @@
u32, enum dma_data_direction);
sense_reason_t (*execute_sync_cache)(struct se_cmd *cmd);
sense_reason_t (*execute_write_same)(struct se_cmd *cmd);
- sense_reason_t (*execute_write_same_unmap)(struct se_cmd *cmd);
- sense_reason_t (*execute_unmap)(struct se_cmd *cmd);
+ sense_reason_t (*execute_unmap)(struct se_cmd *cmd,
+ sector_t lba, sector_t nolb);
};
-int transport_subsystem_register(struct se_subsystem_api *);
-void transport_subsystem_release(struct se_subsystem_api *);
+int transport_backend_register(const struct target_backend_ops *);
+void target_backend_unregister(const struct target_backend_ops *);
void target_complete_cmd(struct se_cmd *, u8);
void target_complete_cmd_with_length(struct se_cmd *, u8, int);
@@ -79,22 +68,19 @@
u32 sbc_get_device_rev(struct se_device *dev);
u32 sbc_get_device_type(struct se_device *dev);
sector_t sbc_get_write_same_sectors(struct se_cmd *cmd);
-sense_reason_t sbc_execute_unmap(struct se_cmd *cmd,
- sense_reason_t (*do_unmap_fn)(struct se_cmd *cmd, void *priv,
- sector_t lba, sector_t nolb),
- void *priv);
void sbc_dif_generate(struct se_cmd *);
-sense_reason_t sbc_dif_verify_write(struct se_cmd *, sector_t, unsigned int,
+sense_reason_t sbc_dif_verify(struct se_cmd *, sector_t, unsigned int,
unsigned int, struct scatterlist *, int);
-sense_reason_t sbc_dif_verify_read(struct se_cmd *, sector_t, unsigned int,
- unsigned int, struct scatterlist *, int);
-sense_reason_t sbc_dif_read_strip(struct se_cmd *);
-
+void sbc_dif_copy_prot(struct se_cmd *, unsigned int, bool,
+ struct scatterlist *, int);
void transport_set_vpd_proto_id(struct t10_vpd *, unsigned char *);
int transport_set_vpd_assoc(struct t10_vpd *, unsigned char *);
int transport_set_vpd_ident_type(struct t10_vpd *, unsigned char *);
int transport_set_vpd_ident(struct t10_vpd *, unsigned char *);
+extern struct configfs_attribute *sbc_attrib_attrs[];
+extern struct configfs_attribute *passthrough_attrib_attrs[];
+
/* core helpers also used by command snooping in pscsi */
void *transport_kmap_data_sg(struct se_cmd *);
void transport_kunmap_data_sg(struct se_cmd *);
@@ -103,39 +89,7 @@
sense_reason_t transport_generic_map_mem_to_cmd(struct se_cmd *,
struct scatterlist *, u32, struct scatterlist *, u32);
-void array_free(void *array, int n);
-
-/* From target_core_configfs.c to setup default backend config_item_types */
-void target_core_setup_sub_cits(struct se_subsystem_api *);
-
-/* attribute helpers from target_core_device.c for backend drivers */
-bool se_dev_check_wce(struct se_device *);
-int se_dev_set_max_unmap_lba_count(struct se_device *, u32);
-int se_dev_set_max_unmap_block_desc_count(struct se_device *, u32);
-int se_dev_set_unmap_granularity(struct se_device *, u32);
-int se_dev_set_unmap_granularity_alignment(struct se_device *, u32);
-int se_dev_set_max_write_same_len(struct se_device *, u32);
-int se_dev_set_emulate_model_alias(struct se_device *, int);
-int se_dev_set_emulate_dpo(struct se_device *, int);
-int se_dev_set_emulate_fua_write(struct se_device *, int);
-int se_dev_set_emulate_fua_read(struct se_device *, int);
-int se_dev_set_emulate_write_cache(struct se_device *, int);
-int se_dev_set_emulate_ua_intlck_ctrl(struct se_device *, int);
-int se_dev_set_emulate_tas(struct se_device *, int);
-int se_dev_set_emulate_tpu(struct se_device *, int);
-int se_dev_set_emulate_tpws(struct se_device *, int);
-int se_dev_set_emulate_caw(struct se_device *, int);
-int se_dev_set_emulate_3pc(struct se_device *, int);
-int se_dev_set_pi_prot_type(struct se_device *, int);
-int se_dev_set_pi_prot_format(struct se_device *, int);
-int se_dev_set_enforce_pr_isids(struct se_device *, int);
-int se_dev_set_force_pr_aptpl(struct se_device *, int);
-int se_dev_set_is_nonrot(struct se_device *, int);
-int se_dev_set_emulate_rest_reord(struct se_device *dev, int);
-int se_dev_set_queue_depth(struct se_device *, u32);
-int se_dev_set_max_sectors(struct se_device *, u32);
-int se_dev_set_optimal_sectors(struct se_device *, u32);
-int se_dev_set_block_size(struct se_device *, u32);
+bool target_lun_is_rdonly(struct se_cmd *);
sense_reason_t passthrough_parse_cdb(struct se_cmd *cmd,
sense_reason_t (*exec_cmd)(struct se_cmd *cmd));
diff --git a/include/target/target_core_backend_configfs.h b/include/target/target_core_backend_configfs.h
deleted file mode 100644
index 186f7a9..0000000
--- a/include/target/target_core_backend_configfs.h
+++ /dev/null
@@ -1,118 +0,0 @@
-#ifndef TARGET_CORE_BACKEND_CONFIGFS_H
-#define TARGET_CORE_BACKEND_CONFIGFS_H
-
-#include <target/configfs_macros.h>
-
-#define DEF_TB_DEV_ATTRIB_SHOW(_backend, _name) \
-static ssize_t _backend##_dev_show_attr_##_name( \
- struct se_dev_attrib *da, \
- char *page) \
-{ \
- return snprintf(page, PAGE_SIZE, "%u\n", \
- (u32)da->da_dev->dev_attrib._name); \
-}
-
-#define DEF_TB_DEV_ATTRIB_STORE(_backend, _name) \
-static ssize_t _backend##_dev_store_attr_##_name( \
- struct se_dev_attrib *da, \
- const char *page, \
- size_t count) \
-{ \
- unsigned long val; \
- int ret; \
- \
- ret = kstrtoul(page, 0, &val); \
- if (ret < 0) { \
- pr_err("kstrtoul() failed with ret: %d\n", ret); \
- return -EINVAL; \
- } \
- ret = se_dev_set_##_name(da->da_dev, (u32)val); \
- \
- return (!ret) ? count : -EINVAL; \
-}
-
-#define DEF_TB_DEV_ATTRIB(_backend, _name) \
-DEF_TB_DEV_ATTRIB_SHOW(_backend, _name); \
-DEF_TB_DEV_ATTRIB_STORE(_backend, _name);
-
-#define DEF_TB_DEV_ATTRIB_RO(_backend, name) \
-DEF_TB_DEV_ATTRIB_SHOW(_backend, name);
-
-CONFIGFS_EATTR_STRUCT(target_backend_dev_attrib, se_dev_attrib);
-#define TB_DEV_ATTR(_backend, _name, _mode) \
-static struct target_backend_dev_attrib_attribute _backend##_dev_attrib_##_name = \
- __CONFIGFS_EATTR(_name, _mode, \
- _backend##_dev_show_attr_##_name, \
- _backend##_dev_store_attr_##_name);
-
-#define TB_DEV_ATTR_RO(_backend, _name) \
-static struct target_backend_dev_attrib_attribute _backend##_dev_attrib_##_name = \
- __CONFIGFS_EATTR_RO(_name, \
- _backend##_dev_show_attr_##_name);
-
-/*
- * Default list of target backend device attributes as defined by
- * struct se_dev_attrib
- */
-
-#define DEF_TB_DEFAULT_ATTRIBS(_backend) \
- DEF_TB_DEV_ATTRIB(_backend, emulate_model_alias); \
- TB_DEV_ATTR(_backend, emulate_model_alias, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB(_backend, emulate_dpo); \
- TB_DEV_ATTR(_backend, emulate_dpo, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB(_backend, emulate_fua_write); \
- TB_DEV_ATTR(_backend, emulate_fua_write, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB(_backend, emulate_fua_read); \
- TB_DEV_ATTR(_backend, emulate_fua_read, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB(_backend, emulate_write_cache); \
- TB_DEV_ATTR(_backend, emulate_write_cache, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB(_backend, emulate_ua_intlck_ctrl); \
- TB_DEV_ATTR(_backend, emulate_ua_intlck_ctrl, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB(_backend, emulate_tas); \
- TB_DEV_ATTR(_backend, emulate_tas, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB(_backend, emulate_tpu); \
- TB_DEV_ATTR(_backend, emulate_tpu, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB(_backend, emulate_tpws); \
- TB_DEV_ATTR(_backend, emulate_tpws, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB(_backend, emulate_caw); \
- TB_DEV_ATTR(_backend, emulate_caw, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB(_backend, emulate_3pc); \
- TB_DEV_ATTR(_backend, emulate_3pc, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB(_backend, pi_prot_type); \
- TB_DEV_ATTR(_backend, pi_prot_type, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB_RO(_backend, hw_pi_prot_type); \
- TB_DEV_ATTR_RO(_backend, hw_pi_prot_type); \
- DEF_TB_DEV_ATTRIB(_backend, pi_prot_format); \
- TB_DEV_ATTR(_backend, pi_prot_format, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB(_backend, enforce_pr_isids); \
- TB_DEV_ATTR(_backend, enforce_pr_isids, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB(_backend, is_nonrot); \
- TB_DEV_ATTR(_backend, is_nonrot, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB(_backend, emulate_rest_reord); \
- TB_DEV_ATTR(_backend, emulate_rest_reord, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB(_backend, force_pr_aptpl); \
- TB_DEV_ATTR(_backend, force_pr_aptpl, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB_RO(_backend, hw_block_size); \
- TB_DEV_ATTR_RO(_backend, hw_block_size); \
- DEF_TB_DEV_ATTRIB(_backend, block_size); \
- TB_DEV_ATTR(_backend, block_size, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB_RO(_backend, hw_max_sectors); \
- TB_DEV_ATTR_RO(_backend, hw_max_sectors); \
- DEF_TB_DEV_ATTRIB(_backend, optimal_sectors); \
- TB_DEV_ATTR(_backend, optimal_sectors, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB_RO(_backend, hw_queue_depth); \
- TB_DEV_ATTR_RO(_backend, hw_queue_depth); \
- DEF_TB_DEV_ATTRIB(_backend, queue_depth); \
- TB_DEV_ATTR(_backend, queue_depth, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB(_backend, max_unmap_lba_count); \
- TB_DEV_ATTR(_backend, max_unmap_lba_count, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB(_backend, max_unmap_block_desc_count); \
- TB_DEV_ATTR(_backend, max_unmap_block_desc_count, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB(_backend, unmap_granularity); \
- TB_DEV_ATTR(_backend, unmap_granularity, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB(_backend, unmap_granularity_alignment); \
- TB_DEV_ATTR(_backend, unmap_granularity_alignment, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB(_backend, max_write_same_len); \
- TB_DEV_ATTR(_backend, max_write_same_len, S_IRUGO | S_IWUSR);
-
-#endif /* TARGET_CORE_BACKEND_CONFIGFS_H */
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index aec6f6a..17ae2d6 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -9,12 +9,8 @@
#include <net/sock.h>
#include <net/tcp.h>
-#define TARGET_CORE_MOD_VERSION "v4.1.0"
-#define TARGET_CORE_VERSION TARGET_CORE_MOD_VERSION
+#define TARGET_CORE_VERSION "v5.0"
-/* Maximum Number of LUNs per Target Portal Group */
-/* Don't raise above 511 or REPORT_LUNS needs to handle >1 page */
-#define TRANSPORT_MAX_LUNS_PER_TPG 256
/*
* Maximum size of a CDB that can be stored in se_cmd without allocating
* memory dynamically for the CDB.
@@ -70,12 +66,6 @@
#define DA_MAX_WRITE_SAME_LEN 0
/* Use a model alias based on the configfs backend device name */
#define DA_EMULATE_MODEL_ALIAS 0
-/* Emulation for Direct Page Out */
-#define DA_EMULATE_DPO 0
-/* Emulation for Forced Unit Access WRITEs */
-#define DA_EMULATE_FUA_WRITE 1
-/* Emulation for Forced Unit Access READs */
-#define DA_EMULATE_FUA_READ 0
/* Emulation for WriteCache and SYNCHRONIZE_CACHE */
#define DA_EMULATE_WRITE_CACHE 0
/* Emulation for UNIT ATTENTION Interlock Control */
@@ -116,18 +106,6 @@
HBA_FLAGS_PSCSI_MODE = 0x02,
};
-/* struct se_lun->lun_status */
-enum transport_lun_status_table {
- TRANSPORT_LUN_STATUS_FREE = 0,
- TRANSPORT_LUN_STATUS_ACTIVE = 1,
-};
-
-/* struct se_portal_group->se_tpg_type */
-enum transport_tpg_type_table {
- TRANSPORT_TPG_TYPE_NORMAL = 0,
- TRANSPORT_TPG_TYPE_DISCOVERY = 1,
-};
-
/* Special transport agnostic struct se_cmd->t_states */
enum transport_state_table {
TRANSPORT_NO_STATE = 0,
@@ -158,14 +136,13 @@
SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC = 0x00020000,
SCF_COMPARE_AND_WRITE = 0x00080000,
SCF_COMPARE_AND_WRITE_POST = 0x00100000,
+ SCF_PASSTHROUGH_PROT_SG_TO_MEM_NOALLOC = 0x00200000,
};
/* struct se_dev_entry->lun_flags and struct se_lun->lun_access */
enum transport_lunflags_table {
- TRANSPORT_LUNFLAGS_NO_ACCESS = 0x00,
- TRANSPORT_LUNFLAGS_INITIATOR_ACCESS = 0x01,
- TRANSPORT_LUNFLAGS_READ_ONLY = 0x02,
- TRANSPORT_LUNFLAGS_READ_WRITE = 0x04,
+ TRANSPORT_LUNFLAGS_READ_ONLY = 0x01,
+ TRANSPORT_LUNFLAGS_READ_WRITE = 0x02,
};
/*
@@ -314,22 +291,13 @@
struct se_device *tg_pt_gp_dev;
struct config_group tg_pt_gp_group;
struct list_head tg_pt_gp_list;
- struct list_head tg_pt_gp_mem_list;
- struct se_port *tg_pt_gp_alua_port;
+ struct list_head tg_pt_gp_lun_list;
+ struct se_lun *tg_pt_gp_alua_lun;
struct se_node_acl *tg_pt_gp_alua_nacl;
struct delayed_work tg_pt_gp_transition_work;
struct completion *tg_pt_gp_transition_complete;
};
-struct t10_alua_tg_pt_gp_member {
- bool tg_pt_gp_assoc;
- atomic_t tg_pt_gp_mem_ref_cnt;
- spinlock_t tg_pt_gp_mem_lock;
- struct t10_alua_tg_pt_gp *tg_pt_gp;
- struct se_port *tg_pt;
- struct list_head tg_pt_gp_mem_list;
-};
-
struct t10_vpd {
unsigned char device_identifier[INQUIRY_VPD_DEVICE_IDENTIFIER_LEN];
int protocol_identifier_set;
@@ -374,15 +342,16 @@
int pr_res_scope;
/* Used for fabric initiator WWPNs using a ISID */
bool isid_present_at_reg;
- u32 pr_res_mapped_lun;
- u32 pr_aptpl_target_lun;
+ u64 pr_res_mapped_lun;
+ u64 pr_aptpl_target_lun;
+ u16 tg_pt_sep_rtpi;
u32 pr_res_generation;
u64 pr_reg_bin_isid;
u64 pr_res_key;
atomic_t pr_res_holders;
struct se_node_acl *pr_reg_nacl;
+ /* Used by ALL_TG_PT=1 registration with deve->pr_ref taken */
struct se_dev_entry *pr_reg_deve;
- struct se_lun *pr_reg_tg_pt_lun;
struct list_head pr_reg_list;
struct list_head pr_reg_abort_list;
struct list_head pr_reg_aptpl_list;
@@ -422,7 +391,7 @@
u8 response;
int call_transport;
/* Reference to ITT that Task Mgmt should be performed */
- u32 ref_task_tag;
+ u64 ref_task_tag;
void *fabric_tmr_ptr;
struct se_cmd *task_cmd;
struct se_device *tmr_dev;
@@ -475,6 +444,7 @@
u8 scsi_asc;
u8 scsi_ascq;
u16 scsi_sense_length;
+ u64 tag; /* SAM command identifier aka task tag */
/* Delay for ALUA Active/NonOptimized state access in milliseconds */
int alua_nonop_delay;
/* See include/linux/dma-mapping.h */
@@ -493,7 +463,7 @@
/* Total size in bytes associated with command */
u32 data_length;
u32 residual_count;
- u32 orig_fe_lun;
+ u64 orig_fe_lun;
/* Persistent Reservation key */
u64 pr_res_key;
/* Used for sense data */
@@ -501,7 +471,6 @@
struct list_head se_delayed_node;
struct list_head se_qf_node;
struct se_device *se_dev;
- struct se_dev_entry *se_deve;
struct se_lun *se_lun;
/* Only used for internal passthrough and legacy TCM fabric modules */
struct se_session *se_sess;
@@ -511,9 +480,8 @@
struct kref cmd_kref;
const struct target_core_fabric_ops *se_tfo;
sense_reason_t (*execute_cmd)(struct se_cmd *);
- sense_reason_t (*execute_rw)(struct se_cmd *, struct scatterlist *,
- u32, enum dma_data_direction);
sense_reason_t (*transport_complete_callback)(struct se_cmd *, bool);
+ void *protocol_data;
unsigned char *t_task_cdb;
unsigned char __t_task_cdb[TCM_MAX_COMMAND_SIZE];
@@ -569,7 +537,6 @@
struct se_ua {
u8 ua_asc;
u8 ua_ascq;
- struct se_node_acl *ua_nacl;
struct list_head ua_nacl_list;
};
@@ -585,10 +552,10 @@
char acl_tag[MAX_ACL_TAG_SIZE];
/* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */
atomic_t acl_pr_ref_count;
- struct se_dev_entry **device_list;
+ struct hlist_head lun_entry_hlist;
struct se_session *nacl_sess;
struct se_portal_group *se_tpg;
- spinlock_t device_list_lock;
+ struct mutex lun_entry_mutex;
spinlock_t nacl_sess_lock;
struct config_group acl_group;
struct config_group acl_attrib_group;
@@ -632,33 +599,37 @@
struct se_lun_acl {
char initiatorname[TRANSPORT_IQN_LEN];
- u32 mapped_lun;
+ u64 mapped_lun;
struct se_node_acl *se_lun_nacl;
struct se_lun *se_lun;
- struct list_head lacl_list;
struct config_group se_lun_group;
struct se_ml_stat_grps ml_stat_grps;
};
struct se_dev_entry {
- bool def_pr_registered;
/* See transport_lunflags_table */
- u32 lun_flags;
- u32 mapped_lun;
- u32 total_cmds;
+ u64 mapped_lun;
u64 pr_res_key;
u64 creation_time;
+ u32 lun_flags;
u32 attach_count;
- u64 read_bytes;
- u64 write_bytes;
+ atomic_long_t total_cmds;
+ atomic_long_t read_bytes;
+ atomic_long_t write_bytes;
atomic_t ua_count;
/* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */
- atomic_t pr_ref_count;
- struct se_lun_acl *se_lun_acl;
+ struct kref pr_kref;
+ struct completion pr_comp;
+ struct se_lun_acl __rcu *se_lun_acl;
spinlock_t ua_lock;
- struct se_lun *se_lun;
+ struct se_lun __rcu *se_lun;
+#define DEF_PR_REG_ACTIVE 1
+ unsigned long deve_flags;
struct list_head alua_port_list;
+ struct list_head lun_link;
struct list_head ua_list;
+ struct hlist_node link;
+ struct rcu_head rcu_head;
};
struct se_dev_attrib {
@@ -703,25 +674,48 @@
struct config_group scsi_transport_group;
};
+struct scsi_port_stats {
+ atomic_long_t cmd_pdus;
+ atomic_long_t tx_data_octets;
+ atomic_long_t rx_data_octets;
+};
+
struct se_lun {
+ u64 unpacked_lun;
#define SE_LUN_LINK_MAGIC 0xffff7771
u32 lun_link_magic;
- /* See transport_lun_status_table */
- enum transport_lun_status_table lun_status;
u32 lun_access;
u32 lun_flags;
- u32 unpacked_lun;
+ u32 lun_index;
+
+ /* RELATIVE TARGET PORT IDENTIFER */
+ u16 lun_rtpi;
atomic_t lun_acl_count;
- spinlock_t lun_acl_lock;
- spinlock_t lun_sep_lock;
- struct completion lun_shutdown_comp;
- struct list_head lun_acl_list;
- struct se_device *lun_se_dev;
- struct se_port *lun_sep;
+ struct se_device __rcu *lun_se_dev;
+
+ struct list_head lun_deve_list;
+ spinlock_t lun_deve_lock;
+
+ /* ALUA state */
+ int lun_tg_pt_secondary_stat;
+ int lun_tg_pt_secondary_write_md;
+ atomic_t lun_tg_pt_secondary_offline;
+ struct mutex lun_tg_pt_md_mutex;
+
+ /* ALUA target port group linkage */
+ struct list_head lun_tg_pt_gp_link;
+ struct t10_alua_tg_pt_gp *lun_tg_pt_gp;
+ spinlock_t lun_tg_pt_gp_lock;
+
+ struct se_portal_group *lun_tpg;
+ struct scsi_port_stats lun_stats;
struct config_group lun_group;
struct se_port_stat_grps port_stat_grps;
struct completion lun_ref_comp;
struct percpu_ref lun_ref;
+ struct list_head lun_dev_link;
+ struct hlist_node link;
+ struct rcu_head rcu_head;
};
struct se_dev_stat_grps {
@@ -744,7 +738,6 @@
#define DF_EMULATED_VPD_UNIT_SERIAL 0x00000004
#define DF_USING_UDEV_PATH 0x00000008
#define DF_USING_ALIAS 0x00000010
- u32 dev_port_count;
/* Physical device queue depth */
u32 queue_depth;
/* Used for SPC-2 reservations enforce of ISIDs */
@@ -761,7 +754,7 @@
atomic_t dev_ordered_id;
atomic_t dev_ordered_sync;
atomic_t dev_qf_count;
- int export_count;
+ u32 export_count;
spinlock_t delayed_cmd_lock;
spinlock_t execute_task_lock;
spinlock_t dev_reservation_lock;
@@ -803,12 +796,15 @@
#define SE_UDEV_PATH_LEN 512 /* must be less than PAGE_SIZE */
unsigned char udev_path[SE_UDEV_PATH_LEN];
/* Pointer to template of function pointers for transport */
- struct se_subsystem_api *transport;
+ const struct target_backend_ops *transport;
/* Linked list for struct se_hba struct se_device list */
struct list_head dev_list;
struct se_lun xcopy_lun;
/* Protection Information */
int prot_length;
+ /* For se_lun->lun_se_dev RCU read-side critical access */
+ u32 hba_index;
+ struct rcu_head rcu_head;
};
struct se_hba {
@@ -825,33 +821,7 @@
spinlock_t device_lock;
struct config_group hba_group;
struct mutex hba_access_mutex;
- struct se_subsystem_api *transport;
-};
-
-struct scsi_port_stats {
- u64 cmd_pdus;
- u64 tx_data_octets;
- u64 rx_data_octets;
-};
-
-struct se_port {
- /* RELATIVE TARGET PORT IDENTIFER */
- u16 sep_rtpi;
- int sep_tg_pt_secondary_stat;
- int sep_tg_pt_secondary_write_md;
- u32 sep_index;
- struct scsi_port_stats sep_stats;
- /* Used for ALUA Target Port Groups membership */
- atomic_t sep_tg_pt_secondary_offline;
- /* Used for PR ALL_TG_PT=1 */
- atomic_t sep_tg_pt_ref_cnt;
- spinlock_t sep_alua_lock;
- struct mutex sep_tg_pt_md_mutex;
- struct t10_alua_tg_pt_gp_member *sep_alua_tg_pt_gp_mem;
- struct se_lun *sep_lun;
- struct se_portal_group *sep_tpg;
- struct list_head sep_alua_list;
- struct list_head sep_list;
+ struct target_backend *backend;
};
struct se_tpg_np {
@@ -860,24 +830,26 @@
};
struct se_portal_group {
- /* Type of target portal group, see transport_tpg_type_table */
- enum transport_tpg_type_table se_tpg_type;
+ /*
+ * PROTOCOL IDENTIFIER value per SPC4, 7.5.1.
+ *
+ * Negative values can be used by fabric drivers for internal use TPGs.
+ */
+ int proto_id;
/* Number of ACLed Initiator Nodes for this TPG */
u32 num_node_acls;
/* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */
atomic_t tpg_pr_ref_count;
/* Spinlock for adding/removing ACLed Nodes */
- spinlock_t acl_node_lock;
+ struct mutex acl_node_mutex;
/* Spinlock for adding/removing sessions */
spinlock_t session_lock;
- spinlock_t tpg_lun_lock;
- /* Pointer to $FABRIC_MOD portal group */
- void *se_tpg_fabric_ptr;
+ struct mutex tpg_lun_mutex;
struct list_head se_tpg_node;
/* linked list for initiator ACL list */
struct list_head acl_node_list;
- struct se_lun **tpg_lun_list;
- struct se_lun tpg_virt_lun0;
+ struct hlist_head tpg_lun_hlist;
+ struct se_lun *tpg_virt_lun0;
/* List of TCM sessions associated wth this TPG */
struct list_head tpg_sess_list;
/* Pointer to $FABRIC_MOD dependent code */
diff --git a/include/target/target_core_configfs.h b/include/target/target_core_configfs.h
deleted file mode 100644
index b99c011..0000000
--- a/include/target/target_core_configfs.h
+++ /dev/null
@@ -1,48 +0,0 @@
-#define TARGET_CORE_CONFIGFS_VERSION TARGET_CORE_MOD_VERSION
-
-#define TARGET_CORE_CONFIG_ROOT "/sys/kernel/config"
-
-#define TARGET_CORE_NAME_MAX_LEN 64
-#define TARGET_FABRIC_NAME_SIZE 32
-
-struct target_fabric_configfs_template {
- struct config_item_type tfc_discovery_cit;
- struct config_item_type tfc_wwn_cit;
- struct config_item_type tfc_wwn_fabric_stats_cit;
- struct config_item_type tfc_tpg_cit;
- struct config_item_type tfc_tpg_base_cit;
- struct config_item_type tfc_tpg_lun_cit;
- struct config_item_type tfc_tpg_port_cit;
- struct config_item_type tfc_tpg_port_stat_cit;
- struct config_item_type tfc_tpg_np_cit;
- struct config_item_type tfc_tpg_np_base_cit;
- struct config_item_type tfc_tpg_attrib_cit;
- struct config_item_type tfc_tpg_auth_cit;
- struct config_item_type tfc_tpg_param_cit;
- struct config_item_type tfc_tpg_nacl_cit;
- struct config_item_type tfc_tpg_nacl_base_cit;
- struct config_item_type tfc_tpg_nacl_attrib_cit;
- struct config_item_type tfc_tpg_nacl_auth_cit;
- struct config_item_type tfc_tpg_nacl_param_cit;
- struct config_item_type tfc_tpg_nacl_stat_cit;
- struct config_item_type tfc_tpg_mappedlun_cit;
- struct config_item_type tfc_tpg_mappedlun_stat_cit;
-};
-
-struct target_fabric_configfs {
- char tf_name[TARGET_FABRIC_NAME_SIZE];
- atomic_t tf_access_cnt;
- struct list_head tf_list;
- struct config_group tf_group;
- struct config_group tf_disc_group;
- struct config_group *tf_default_groups[2];
- /* Pointer to fabric's config_item */
- struct config_item *tf_fabric;
- /* Passed from fabric modules */
- struct config_item_type *tf_fabric_cit;
- /* Pointer to fabric's struct module */
- struct module *tf_module;
- struct target_core_fabric_ops tf_ops;
- struct target_fabric_configfs_template tf_cit_tmpl;
-};
-
diff --git a/include/target/target_core_fabric.h b/include/target/target_core_fabric.h
index 0f4dc37..18afef9 100644
--- a/include/target/target_core_fabric.h
+++ b/include/target/target_core_fabric.h
@@ -4,20 +4,11 @@
struct target_core_fabric_ops {
struct module *module;
const char *name;
+ size_t node_acl_size;
char *(*get_fabric_name)(void);
- u8 (*get_fabric_proto_ident)(struct se_portal_group *);
char *(*tpg_get_wwn)(struct se_portal_group *);
u16 (*tpg_get_tag)(struct se_portal_group *);
u32 (*tpg_get_default_depth)(struct se_portal_group *);
- u32 (*tpg_get_pr_transport_id)(struct se_portal_group *,
- struct se_node_acl *,
- struct t10_pr_registration *, int *,
- unsigned char *);
- u32 (*tpg_get_pr_transport_id_len)(struct se_portal_group *,
- struct se_node_acl *,
- struct t10_pr_registration *, int *);
- char *(*tpg_parse_pr_out_transport_id)(struct se_portal_group *,
- const char *, u32 *, char **);
int (*tpg_check_demo_mode)(struct se_portal_group *);
int (*tpg_check_demo_mode_cache)(struct se_portal_group *);
int (*tpg_check_demo_mode_write_protect)(struct se_portal_group *);
@@ -36,10 +27,6 @@
* WRITE_STRIP and READ_INSERT operations.
*/
int (*tpg_check_prot_fabric_only)(struct se_portal_group *);
- struct se_node_acl *(*tpg_alloc_fabric_acl)(
- struct se_portal_group *);
- void (*tpg_release_fabric_acl)(struct se_portal_group *,
- struct se_node_acl *);
u32 (*tpg_get_inst_index)(struct se_portal_group *);
/*
* Optional to release struct se_cmd and fabric dependent allocated
@@ -50,7 +37,6 @@
*/
int (*check_stop_free)(struct se_cmd *);
void (*release_cmd)(struct se_cmd *);
- void (*put_session)(struct se_session *);
/*
* Called with spin_lock_bh(struct se_portal_group->session_lock held.
*/
@@ -66,7 +52,6 @@
int (*write_pending)(struct se_cmd *);
int (*write_pending_status)(struct se_cmd *);
void (*set_default_node_attributes)(struct se_node_acl *);
- u32 (*get_task_tag)(struct se_cmd *);
int (*get_cmd_state)(struct se_cmd *);
int (*queue_data_in)(struct se_cmd *);
int (*queue_status)(struct se_cmd *);
@@ -88,9 +73,8 @@
struct se_tpg_np *(*fabric_make_np)(struct se_portal_group *,
struct config_group *, const char *);
void (*fabric_drop_np)(struct se_tpg_np *);
- struct se_node_acl *(*fabric_make_nodeacl)(struct se_portal_group *,
- struct config_group *, const char *);
- void (*fabric_drop_nodeacl)(struct se_node_acl *);
+ int (*fabric_init_nodeacl)(struct se_node_acl *, const char *);
+ void (*fabric_cleanup_nodeacl)(struct se_node_acl *);
struct configfs_attribute **tfc_discovery_attrs;
struct configfs_attribute **tfc_wwn_attrs;
@@ -132,16 +116,16 @@
void transport_init_se_cmd(struct se_cmd *,
const struct target_core_fabric_ops *,
struct se_session *, u32, int, int, unsigned char *);
-sense_reason_t transport_lookup_cmd_lun(struct se_cmd *, u32);
+sense_reason_t transport_lookup_cmd_lun(struct se_cmd *, u64);
sense_reason_t target_setup_cmd_from_cdb(struct se_cmd *, unsigned char *);
int target_submit_cmd_map_sgls(struct se_cmd *, struct se_session *,
- unsigned char *, unsigned char *, u32, u32, int, int, int,
+ unsigned char *, unsigned char *, u64, u32, int, int, int,
struct scatterlist *, u32, struct scatterlist *, u32,
struct scatterlist *, u32);
int target_submit_cmd(struct se_cmd *, struct se_session *, unsigned char *,
- unsigned char *, u32, u32, int, int, int);
+ unsigned char *, u64, u32, int, int, int);
int target_submit_tmr(struct se_cmd *se_cmd, struct se_session *se_sess,
- unsigned char *sense, u32 unpacked_lun,
+ unsigned char *sense, u64 unpacked_lun,
void *fabric_tmr_ptr, unsigned char tm_type,
gfp_t, unsigned int, int);
int transport_handle_cdb_direct(struct se_cmd *);
@@ -155,8 +139,8 @@
int transport_check_aborted_status(struct se_cmd *, int);
int transport_send_check_condition_and_sense(struct se_cmd *,
sense_reason_t, int);
-int target_get_sess_cmd(struct se_session *, struct se_cmd *, bool);
-int target_put_sess_cmd(struct se_session *, struct se_cmd *);
+int target_get_sess_cmd(struct se_cmd *, bool);
+int target_put_sess_cmd(struct se_cmd *);
void target_sess_cmd_list_set_waiting(struct se_session *);
void target_wait_for_sess_cmds(struct se_session *);
@@ -167,52 +151,19 @@
int transport_generic_handle_tmr(struct se_cmd *);
void transport_generic_request_failure(struct se_cmd *, sense_reason_t);
void __target_execute_cmd(struct se_cmd *);
-int transport_lookup_tmr_lun(struct se_cmd *, u32);
+int transport_lookup_tmr_lun(struct se_cmd *, u64);
struct se_node_acl *core_tpg_get_initiator_node_acl(struct se_portal_group *tpg,
unsigned char *);
struct se_node_acl *core_tpg_check_initiator_node_acl(struct se_portal_group *,
unsigned char *);
-void core_tpg_clear_object_luns(struct se_portal_group *);
-struct se_node_acl *core_tpg_add_initiator_node_acl(struct se_portal_group *,
- struct se_node_acl *, const char *, u32);
-int core_tpg_del_initiator_node_acl(struct se_portal_group *,
- struct se_node_acl *, int);
int core_tpg_set_initiator_node_queue_depth(struct se_portal_group *,
unsigned char *, u32, int);
int core_tpg_set_initiator_node_tag(struct se_portal_group *,
struct se_node_acl *, const char *);
-int core_tpg_register(const struct target_core_fabric_ops *,
- struct se_wwn *, struct se_portal_group *, void *, int);
+int core_tpg_register(struct se_wwn *, struct se_portal_group *, int);
int core_tpg_deregister(struct se_portal_group *);
-/* SAS helpers */
-u8 sas_get_fabric_proto_ident(struct se_portal_group *);
-u32 sas_get_pr_transport_id(struct se_portal_group *, struct se_node_acl *,
- struct t10_pr_registration *, int *, unsigned char *);
-u32 sas_get_pr_transport_id_len(struct se_portal_group *, struct se_node_acl *,
- struct t10_pr_registration *, int *);
-char *sas_parse_pr_out_transport_id(struct se_portal_group *, const char *,
- u32 *, char **);
-
-/* FC helpers */
-u8 fc_get_fabric_proto_ident(struct se_portal_group *);
-u32 fc_get_pr_transport_id(struct se_portal_group *, struct se_node_acl *,
- struct t10_pr_registration *, int *, unsigned char *);
-u32 fc_get_pr_transport_id_len(struct se_portal_group *, struct se_node_acl *,
- struct t10_pr_registration *, int *);
-char *fc_parse_pr_out_transport_id(struct se_portal_group *, const char *,
- u32 *, char **);
-
-/* iSCSI helpers */
-u8 iscsi_get_fabric_proto_ident(struct se_portal_group *);
-u32 iscsi_get_pr_transport_id(struct se_portal_group *, struct se_node_acl *,
- struct t10_pr_registration *, int *, unsigned char *);
-u32 iscsi_get_pr_transport_id_len(struct se_portal_group *, struct se_node_acl *,
- struct t10_pr_registration *, int *);
-char *iscsi_parse_pr_out_transport_id(struct se_portal_group *, const char *,
- u32 *, char **);
-
/*
* The LIO target core uses DMA_TO_DEVICE to mean that data is going
* to the target (eg handling a WRITE) and DMA_FROM_DEVICE to mean
diff --git a/lib/crc-t10dif.c b/lib/crc-t10dif.c
index dfe6ec1..1ad33e5 100644
--- a/lib/crc-t10dif.c
+++ b/lib/crc-t10dif.c
@@ -19,7 +19,7 @@
static struct crypto_shash *crct10dif_tfm;
static struct static_key crct10dif_fallback __read_mostly;
-__u16 crc_t10dif(const unsigned char *buffer, size_t len)
+__u16 crc_t10dif_update(__u16 crc, const unsigned char *buffer, size_t len)
{
struct {
struct shash_desc shash;
@@ -28,17 +28,23 @@
int err;
if (static_key_false(&crct10dif_fallback))
- return crc_t10dif_generic(0, buffer, len);
+ return crc_t10dif_generic(crc, buffer, len);
desc.shash.tfm = crct10dif_tfm;
desc.shash.flags = 0;
- *(__u16 *)desc.ctx = 0;
+ *(__u16 *)desc.ctx = crc;
err = crypto_shash_update(&desc.shash, buffer, len);
BUG_ON(err);
return *(__u16 *)desc.ctx;
}
+EXPORT_SYMBOL(crc_t10dif_update);
+
+__u16 crc_t10dif(const unsigned char *buffer, size_t len)
+{
+ return crc_t10dif_update(0, buffer, len);
+}
EXPORT_SYMBOL(crc_t10dif);
static int __init crc_t10dif_mod_init(void)