James Smart | 9ef3e4a | 2007-05-24 19:04:44 -0400 | [diff] [blame] | 1 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2 | * FiberChannel transport specific attributes exported to sysfs. |
| 3 | * |
| 4 | * Copyright (c) 2003 Silicon Graphics, Inc. All rights reserved. |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 | * |
| 20 | * ======== |
| 21 | * |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 22 | * Copyright (C) 2004-2007 James Smart, Emulex Corporation |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 23 | * Rewrite for host, target, device, and remote port attributes, |
| 24 | * statistics, and service functions... |
James Smart | 9ef3e4a | 2007-05-24 19:04:44 -0400 | [diff] [blame] | 25 | * Add vports, etc |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | * |
| 27 | */ |
| 28 | #include <linux/module.h> |
| 29 | #include <linux/init.h> |
| 30 | #include <scsi/scsi_device.h> |
| 31 | #include <scsi/scsi_host.h> |
| 32 | #include <scsi/scsi_transport.h> |
| 33 | #include <scsi/scsi_transport_fc.h> |
James Smart | c829c39 | 2006-03-13 08:28:57 -0500 | [diff] [blame] | 34 | #include <scsi/scsi_cmnd.h> |
James Smart | 84314fd | 2006-08-18 17:30:09 -0400 | [diff] [blame] | 35 | #include <linux/netlink.h> |
| 36 | #include <net/netlink.h> |
| 37 | #include <scsi/scsi_netlink_fc.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | #include "scsi_priv.h" |
FUJITA Tomonori | 7525236 | 2007-09-01 02:02:27 +0900 | [diff] [blame] | 39 | #include "scsi_transport_fc_internal.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 40 | |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 41 | static int fc_queue_work(struct Scsi_Host *, struct work_struct *); |
James Smart | 9ef3e4a | 2007-05-24 19:04:44 -0400 | [diff] [blame] | 42 | static void fc_vport_sched_delete(struct work_struct *work); |
Andrew Vasquez | a30c3f6 | 2008-07-18 08:32:52 -0700 | [diff] [blame] | 43 | static int fc_vport_setup(struct Scsi_Host *shost, int channel, |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 44 | struct device *pdev, struct fc_vport_identifiers *ids, |
| 45 | struct fc_vport **vport); |
| 46 | |
| 47 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 48 | * Redefine so that we can have same named attributes in the |
| 49 | * sdev/starget/host objects. |
| 50 | */ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 51 | #define FC_DEVICE_ATTR(_prefix,_name,_mode,_show,_store) \ |
| 52 | struct device_attribute device_attr_##_prefix##_##_name = \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 53 | __ATTR(_name,_mode,_show,_store) |
| 54 | |
| 55 | #define fc_enum_name_search(title, table_type, table) \ |
| 56 | static const char *get_fc_##title##_name(enum table_type table_key) \ |
| 57 | { \ |
| 58 | int i; \ |
| 59 | char *name = NULL; \ |
| 60 | \ |
Tobias Klauser | 6391a11 | 2006-06-08 22:23:48 -0700 | [diff] [blame] | 61 | for (i = 0; i < ARRAY_SIZE(table); i++) { \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 62 | if (table[i].value == table_key) { \ |
| 63 | name = table[i].name; \ |
| 64 | break; \ |
| 65 | } \ |
| 66 | } \ |
| 67 | return name; \ |
| 68 | } |
| 69 | |
| 70 | #define fc_enum_name_match(title, table_type, table) \ |
| 71 | static int get_fc_##title##_match(const char *table_key, \ |
| 72 | enum table_type *value) \ |
| 73 | { \ |
| 74 | int i; \ |
| 75 | \ |
Tobias Klauser | 6391a11 | 2006-06-08 22:23:48 -0700 | [diff] [blame] | 76 | for (i = 0; i < ARRAY_SIZE(table); i++) { \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 77 | if (strncmp(table_key, table[i].name, \ |
| 78 | table[i].matchlen) == 0) { \ |
| 79 | *value = table[i].value; \ |
| 80 | return 0; /* success */ \ |
| 81 | } \ |
| 82 | } \ |
| 83 | return 1; /* failure */ \ |
| 84 | } |
| 85 | |
| 86 | |
| 87 | /* Convert fc_port_type values to ascii string name */ |
| 88 | static struct { |
| 89 | enum fc_port_type value; |
| 90 | char *name; |
| 91 | } fc_port_type_names[] = { |
| 92 | { FC_PORTTYPE_UNKNOWN, "Unknown" }, |
| 93 | { FC_PORTTYPE_OTHER, "Other" }, |
| 94 | { FC_PORTTYPE_NOTPRESENT, "Not Present" }, |
| 95 | { FC_PORTTYPE_NPORT, "NPort (fabric via point-to-point)" }, |
| 96 | { FC_PORTTYPE_NLPORT, "NLPort (fabric via loop)" }, |
| 97 | { FC_PORTTYPE_LPORT, "LPort (private loop)" }, |
| 98 | { FC_PORTTYPE_PTP, "Point-To-Point (direct nport connection" }, |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 99 | { FC_PORTTYPE_NPIV, "NPIV VPORT" }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 100 | }; |
| 101 | fc_enum_name_search(port_type, fc_port_type, fc_port_type_names) |
| 102 | #define FC_PORTTYPE_MAX_NAMELEN 50 |
| 103 | |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 104 | /* Reuse fc_port_type enum function for vport_type */ |
| 105 | #define get_fc_vport_type_name get_fc_port_type_name |
| 106 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 107 | |
James Smart | 84314fd | 2006-08-18 17:30:09 -0400 | [diff] [blame] | 108 | /* Convert fc_host_event_code values to ascii string name */ |
| 109 | static const struct { |
| 110 | enum fc_host_event_code value; |
| 111 | char *name; |
| 112 | } fc_host_event_code_names[] = { |
| 113 | { FCH_EVT_LIP, "lip" }, |
| 114 | { FCH_EVT_LINKUP, "link_up" }, |
| 115 | { FCH_EVT_LINKDOWN, "link_down" }, |
| 116 | { FCH_EVT_LIPRESET, "lip_reset" }, |
| 117 | { FCH_EVT_RSCN, "rscn" }, |
| 118 | { FCH_EVT_ADAPTER_CHANGE, "adapter_chg" }, |
| 119 | { FCH_EVT_PORT_UNKNOWN, "port_unknown" }, |
| 120 | { FCH_EVT_PORT_ONLINE, "port_online" }, |
| 121 | { FCH_EVT_PORT_OFFLINE, "port_offline" }, |
| 122 | { FCH_EVT_PORT_FABRIC, "port_fabric" }, |
| 123 | { FCH_EVT_LINK_UNKNOWN, "link_unknown" }, |
| 124 | { FCH_EVT_VENDOR_UNIQUE, "vendor_unique" }, |
| 125 | }; |
| 126 | fc_enum_name_search(host_event_code, fc_host_event_code, |
| 127 | fc_host_event_code_names) |
| 128 | #define FC_HOST_EVENT_CODE_MAX_NAMELEN 30 |
| 129 | |
| 130 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 131 | /* Convert fc_port_state values to ascii string name */ |
| 132 | static struct { |
| 133 | enum fc_port_state value; |
| 134 | char *name; |
| 135 | } fc_port_state_names[] = { |
| 136 | { FC_PORTSTATE_UNKNOWN, "Unknown" }, |
| 137 | { FC_PORTSTATE_NOTPRESENT, "Not Present" }, |
| 138 | { FC_PORTSTATE_ONLINE, "Online" }, |
| 139 | { FC_PORTSTATE_OFFLINE, "Offline" }, |
| 140 | { FC_PORTSTATE_BLOCKED, "Blocked" }, |
| 141 | { FC_PORTSTATE_BYPASSED, "Bypassed" }, |
| 142 | { FC_PORTSTATE_DIAGNOSTICS, "Diagnostics" }, |
| 143 | { FC_PORTSTATE_LINKDOWN, "Linkdown" }, |
| 144 | { FC_PORTSTATE_ERROR, "Error" }, |
| 145 | { FC_PORTSTATE_LOOPBACK, "Loopback" }, |
James.Smart@Emulex.Com | 42e3314 | 2005-12-15 09:56:22 -0500 | [diff] [blame] | 146 | { FC_PORTSTATE_DELETED, "Deleted" }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 147 | }; |
| 148 | fc_enum_name_search(port_state, fc_port_state, fc_port_state_names) |
| 149 | #define FC_PORTSTATE_MAX_NAMELEN 20 |
| 150 | |
| 151 | |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 152 | /* Convert fc_vport_state values to ascii string name */ |
| 153 | static struct { |
| 154 | enum fc_vport_state value; |
| 155 | char *name; |
| 156 | } fc_vport_state_names[] = { |
| 157 | { FC_VPORT_UNKNOWN, "Unknown" }, |
| 158 | { FC_VPORT_ACTIVE, "Active" }, |
| 159 | { FC_VPORT_DISABLED, "Disabled" }, |
| 160 | { FC_VPORT_LINKDOWN, "Linkdown" }, |
| 161 | { FC_VPORT_INITIALIZING, "Initializing" }, |
| 162 | { FC_VPORT_NO_FABRIC_SUPP, "No Fabric Support" }, |
| 163 | { FC_VPORT_NO_FABRIC_RSCS, "No Fabric Resources" }, |
| 164 | { FC_VPORT_FABRIC_LOGOUT, "Fabric Logout" }, |
| 165 | { FC_VPORT_FABRIC_REJ_WWN, "Fabric Rejected WWN" }, |
| 166 | { FC_VPORT_FAILED, "VPort Failed" }, |
| 167 | }; |
| 168 | fc_enum_name_search(vport_state, fc_vport_state, fc_vport_state_names) |
| 169 | #define FC_VPORTSTATE_MAX_NAMELEN 24 |
| 170 | |
| 171 | /* Reuse fc_vport_state enum function for vport_last_state */ |
| 172 | #define get_fc_vport_last_state_name get_fc_vport_state_name |
| 173 | |
| 174 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 175 | /* Convert fc_tgtid_binding_type values to ascii string name */ |
Arjan van de Ven | 0ad7820 | 2005-11-28 16:22:25 +0100 | [diff] [blame] | 176 | static const struct { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 177 | enum fc_tgtid_binding_type value; |
| 178 | char *name; |
| 179 | int matchlen; |
| 180 | } fc_tgtid_binding_type_names[] = { |
| 181 | { FC_TGTID_BIND_NONE, "none", 4 }, |
| 182 | { FC_TGTID_BIND_BY_WWPN, "wwpn (World Wide Port Name)", 4 }, |
| 183 | { FC_TGTID_BIND_BY_WWNN, "wwnn (World Wide Node Name)", 4 }, |
| 184 | { FC_TGTID_BIND_BY_ID, "port_id (FC Address)", 7 }, |
| 185 | }; |
| 186 | fc_enum_name_search(tgtid_bind_type, fc_tgtid_binding_type, |
| 187 | fc_tgtid_binding_type_names) |
| 188 | fc_enum_name_match(tgtid_bind_type, fc_tgtid_binding_type, |
| 189 | fc_tgtid_binding_type_names) |
| 190 | #define FC_BINDTYPE_MAX_NAMELEN 30 |
| 191 | |
| 192 | |
| 193 | #define fc_bitfield_name_search(title, table) \ |
| 194 | static ssize_t \ |
| 195 | get_fc_##title##_names(u32 table_key, char *buf) \ |
| 196 | { \ |
| 197 | char *prefix = ""; \ |
| 198 | ssize_t len = 0; \ |
| 199 | int i; \ |
| 200 | \ |
Tobias Klauser | 6391a11 | 2006-06-08 22:23:48 -0700 | [diff] [blame] | 201 | for (i = 0; i < ARRAY_SIZE(table); i++) { \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 202 | if (table[i].value & table_key) { \ |
| 203 | len += sprintf(buf + len, "%s%s", \ |
| 204 | prefix, table[i].name); \ |
| 205 | prefix = ", "; \ |
| 206 | } \ |
| 207 | } \ |
| 208 | len += sprintf(buf + len, "\n"); \ |
| 209 | return len; \ |
| 210 | } |
| 211 | |
| 212 | |
| 213 | /* Convert FC_COS bit values to ascii string name */ |
Arjan van de Ven | 0ad7820 | 2005-11-28 16:22:25 +0100 | [diff] [blame] | 214 | static const struct { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 215 | u32 value; |
| 216 | char *name; |
| 217 | } fc_cos_names[] = { |
| 218 | { FC_COS_CLASS1, "Class 1" }, |
| 219 | { FC_COS_CLASS2, "Class 2" }, |
| 220 | { FC_COS_CLASS3, "Class 3" }, |
| 221 | { FC_COS_CLASS4, "Class 4" }, |
| 222 | { FC_COS_CLASS6, "Class 6" }, |
| 223 | }; |
| 224 | fc_bitfield_name_search(cos, fc_cos_names) |
| 225 | |
| 226 | |
| 227 | /* Convert FC_PORTSPEED bit values to ascii string name */ |
Arjan van de Ven | 0ad7820 | 2005-11-28 16:22:25 +0100 | [diff] [blame] | 228 | static const struct { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 229 | u32 value; |
| 230 | char *name; |
| 231 | } fc_port_speed_names[] = { |
| 232 | { FC_PORTSPEED_1GBIT, "1 Gbit" }, |
| 233 | { FC_PORTSPEED_2GBIT, "2 Gbit" }, |
| 234 | { FC_PORTSPEED_4GBIT, "4 Gbit" }, |
| 235 | { FC_PORTSPEED_10GBIT, "10 Gbit" }, |
James Smart | c3d2350 | 2007-03-12 14:16:35 -0500 | [diff] [blame] | 236 | { FC_PORTSPEED_8GBIT, "8 Gbit" }, |
| 237 | { FC_PORTSPEED_16GBIT, "16 Gbit" }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 238 | { FC_PORTSPEED_NOT_NEGOTIATED, "Not Negotiated" }, |
| 239 | }; |
| 240 | fc_bitfield_name_search(port_speed, fc_port_speed_names) |
| 241 | |
| 242 | |
| 243 | static int |
| 244 | show_fc_fc4s (char *buf, u8 *fc4_list) |
| 245 | { |
| 246 | int i, len=0; |
| 247 | |
| 248 | for (i = 0; i < FC_FC4_LIST_SIZE; i++, fc4_list++) |
| 249 | len += sprintf(buf + len , "0x%02x ", *fc4_list); |
| 250 | len += sprintf(buf + len, "\n"); |
| 251 | return len; |
| 252 | } |
| 253 | |
| 254 | |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 255 | /* Convert FC_PORT_ROLE bit values to ascii string name */ |
Arjan van de Ven | 0ad7820 | 2005-11-28 16:22:25 +0100 | [diff] [blame] | 256 | static const struct { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 257 | u32 value; |
| 258 | char *name; |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 259 | } fc_port_role_names[] = { |
| 260 | { FC_PORT_ROLE_FCP_TARGET, "FCP Target" }, |
| 261 | { FC_PORT_ROLE_FCP_INITIATOR, "FCP Initiator" }, |
| 262 | { FC_PORT_ROLE_IP_PORT, "IP Port" }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 263 | }; |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 264 | fc_bitfield_name_search(port_roles, fc_port_role_names) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 265 | |
| 266 | /* |
| 267 | * Define roles that are specific to port_id. Values are relative to ROLE_MASK. |
| 268 | */ |
| 269 | #define FC_WELLKNOWN_PORTID_MASK 0xfffff0 |
| 270 | #define FC_WELLKNOWN_ROLE_MASK 0x00000f |
| 271 | #define FC_FPORT_PORTID 0x00000e |
| 272 | #define FC_FABCTLR_PORTID 0x00000d |
| 273 | #define FC_DIRSRVR_PORTID 0x00000c |
| 274 | #define FC_TIMESRVR_PORTID 0x00000b |
| 275 | #define FC_MGMTSRVR_PORTID 0x00000a |
| 276 | |
| 277 | |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 278 | static void fc_timeout_deleted_rport(struct work_struct *work); |
| 279 | static void fc_timeout_fail_rport_io(struct work_struct *work); |
| 280 | static void fc_scsi_scan_rport(struct work_struct *work); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 281 | |
| 282 | /* |
| 283 | * Attribute counts pre object type... |
| 284 | * Increase these values if you add attributes |
| 285 | */ |
| 286 | #define FC_STARGET_NUM_ATTRS 3 |
James Smart | 0f29b96 | 2006-08-18 17:33:29 -0400 | [diff] [blame] | 287 | #define FC_RPORT_NUM_ATTRS 10 |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 288 | #define FC_VPORT_NUM_ATTRS 9 |
| 289 | #define FC_HOST_NUM_ATTRS 21 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 290 | |
| 291 | struct fc_internal { |
| 292 | struct scsi_transport_template t; |
| 293 | struct fc_function_template *f; |
| 294 | |
| 295 | /* |
| 296 | * For attributes : each object has : |
| 297 | * An array of the actual attributes structures |
| 298 | * An array of null-terminated pointers to the attribute |
| 299 | * structures - used for mid-layer interaction. |
| 300 | * |
| 301 | * The attribute containers for the starget and host are are |
| 302 | * part of the midlayer. As the remote port is specific to the |
| 303 | * fc transport, we must provide the attribute container. |
| 304 | */ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 305 | struct device_attribute private_starget_attrs[ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 306 | FC_STARGET_NUM_ATTRS]; |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 307 | struct device_attribute *starget_attrs[FC_STARGET_NUM_ATTRS + 1]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 308 | |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 309 | struct device_attribute private_host_attrs[FC_HOST_NUM_ATTRS]; |
| 310 | struct device_attribute *host_attrs[FC_HOST_NUM_ATTRS + 1]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 311 | |
| 312 | struct transport_container rport_attr_cont; |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 313 | struct device_attribute private_rport_attrs[FC_RPORT_NUM_ATTRS]; |
| 314 | struct device_attribute *rport_attrs[FC_RPORT_NUM_ATTRS + 1]; |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 315 | |
| 316 | struct transport_container vport_attr_cont; |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 317 | struct device_attribute private_vport_attrs[FC_VPORT_NUM_ATTRS]; |
| 318 | struct device_attribute *vport_attrs[FC_VPORT_NUM_ATTRS + 1]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 319 | }; |
| 320 | |
| 321 | #define to_fc_internal(tmpl) container_of(tmpl, struct fc_internal, t) |
| 322 | |
James Bottomley | d0a7e57 | 2005-08-14 17:09:01 -0500 | [diff] [blame] | 323 | static int fc_target_setup(struct transport_container *tc, struct device *dev, |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 324 | struct device *cdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 325 | { |
| 326 | struct scsi_target *starget = to_scsi_target(dev); |
| 327 | struct fc_rport *rport = starget_to_rport(starget); |
| 328 | |
| 329 | /* |
| 330 | * if parent is remote port, use values from remote port. |
| 331 | * Otherwise, this host uses the fc_transport, but not the |
| 332 | * remote port interface. As such, initialize to known non-values. |
| 333 | */ |
| 334 | if (rport) { |
| 335 | fc_starget_node_name(starget) = rport->node_name; |
| 336 | fc_starget_port_name(starget) = rport->port_name; |
| 337 | fc_starget_port_id(starget) = rport->port_id; |
| 338 | } else { |
| 339 | fc_starget_node_name(starget) = -1; |
| 340 | fc_starget_port_name(starget) = -1; |
| 341 | fc_starget_port_id(starget) = -1; |
| 342 | } |
| 343 | |
| 344 | return 0; |
| 345 | } |
| 346 | |
| 347 | static DECLARE_TRANSPORT_CLASS(fc_transport_class, |
| 348 | "fc_transport", |
| 349 | fc_target_setup, |
| 350 | NULL, |
| 351 | NULL); |
| 352 | |
James Bottomley | d0a7e57 | 2005-08-14 17:09:01 -0500 | [diff] [blame] | 353 | static int fc_host_setup(struct transport_container *tc, struct device *dev, |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 354 | struct device *cdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 355 | { |
| 356 | struct Scsi_Host *shost = dev_to_shost(dev); |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 357 | struct fc_host_attrs *fc_host = shost_to_fc_host(shost); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 358 | |
James Smart | 9ef3e4a | 2007-05-24 19:04:44 -0400 | [diff] [blame] | 359 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 360 | * Set default values easily detected by the midlayer as |
| 361 | * failure cases. The scsi lldd is responsible for initializing |
| 362 | * all transport attributes to valid values per host. |
| 363 | */ |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 364 | fc_host->node_name = -1; |
| 365 | fc_host->port_name = -1; |
| 366 | fc_host->permanent_port_name = -1; |
| 367 | fc_host->supported_classes = FC_COS_UNSPECIFIED; |
| 368 | memset(fc_host->supported_fc4s, 0, |
| 369 | sizeof(fc_host->supported_fc4s)); |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 370 | fc_host->supported_speeds = FC_PORTSPEED_UNKNOWN; |
| 371 | fc_host->maxframe_size = -1; |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 372 | fc_host->max_npiv_vports = 0; |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 373 | memset(fc_host->serial_number, 0, |
| 374 | sizeof(fc_host->serial_number)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 375 | |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 376 | fc_host->port_id = -1; |
| 377 | fc_host->port_type = FC_PORTTYPE_UNKNOWN; |
| 378 | fc_host->port_state = FC_PORTSTATE_UNKNOWN; |
| 379 | memset(fc_host->active_fc4s, 0, |
| 380 | sizeof(fc_host->active_fc4s)); |
| 381 | fc_host->speed = FC_PORTSPEED_UNKNOWN; |
| 382 | fc_host->fabric_name = -1; |
James Smart | b8d0821 | 2006-08-17 08:00:43 -0400 | [diff] [blame] | 383 | memset(fc_host->symbolic_name, 0, sizeof(fc_host->symbolic_name)); |
| 384 | memset(fc_host->system_hostname, 0, sizeof(fc_host->system_hostname)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 385 | |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 386 | fc_host->tgtid_bind_type = FC_TGTID_BIND_BY_WWPN; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 387 | |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 388 | INIT_LIST_HEAD(&fc_host->rports); |
| 389 | INIT_LIST_HEAD(&fc_host->rport_bindings); |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 390 | INIT_LIST_HEAD(&fc_host->vports); |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 391 | fc_host->next_rport_number = 0; |
| 392 | fc_host->next_target_id = 0; |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 393 | fc_host->next_vport_number = 0; |
| 394 | fc_host->npiv_vports_inuse = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 395 | |
Kay Sievers | aab0de2 | 2008-05-02 06:02:41 +0200 | [diff] [blame] | 396 | snprintf(fc_host->work_q_name, sizeof(fc_host->work_q_name), |
| 397 | "fc_wq_%d", shost->host_no); |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 398 | fc_host->work_q = create_singlethread_workqueue( |
| 399 | fc_host->work_q_name); |
| 400 | if (!fc_host->work_q) |
| 401 | return -ENOMEM; |
| 402 | |
Kay Sievers | aab0de2 | 2008-05-02 06:02:41 +0200 | [diff] [blame] | 403 | snprintf(fc_host->devloss_work_q_name, |
| 404 | sizeof(fc_host->devloss_work_q_name), |
| 405 | "fc_dl_%d", shost->host_no); |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 406 | fc_host->devloss_work_q = create_singlethread_workqueue( |
| 407 | fc_host->devloss_work_q_name); |
| 408 | if (!fc_host->devloss_work_q) { |
| 409 | destroy_workqueue(fc_host->work_q); |
| 410 | fc_host->work_q = NULL; |
| 411 | return -ENOMEM; |
| 412 | } |
| 413 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 414 | return 0; |
| 415 | } |
| 416 | |
| 417 | static DECLARE_TRANSPORT_CLASS(fc_host_class, |
| 418 | "fc_host", |
| 419 | fc_host_setup, |
| 420 | NULL, |
| 421 | NULL); |
| 422 | |
| 423 | /* |
| 424 | * Setup and Remove actions for remote ports are handled |
| 425 | * in the service functions below. |
| 426 | */ |
| 427 | static DECLARE_TRANSPORT_CLASS(fc_rport_class, |
| 428 | "fc_remote_ports", |
| 429 | NULL, |
| 430 | NULL, |
| 431 | NULL); |
| 432 | |
| 433 | /* |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 434 | * Setup and Remove actions for virtual ports are handled |
| 435 | * in the service functions below. |
| 436 | */ |
| 437 | static DECLARE_TRANSPORT_CLASS(fc_vport_class, |
| 438 | "fc_vports", |
| 439 | NULL, |
| 440 | NULL, |
| 441 | NULL); |
| 442 | |
| 443 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 444 | * Module Parameters |
| 445 | */ |
| 446 | |
| 447 | /* |
| 448 | * dev_loss_tmo: the default number of seconds that the FC transport |
| 449 | * should insulate the loss of a remote port. |
| 450 | * The maximum will be capped by the value of SCSI_DEVICE_BLOCK_MAX_TIMEOUT. |
| 451 | */ |
James Smart | 1c9e16e | 2006-05-16 16:13:36 -0400 | [diff] [blame] | 452 | static unsigned int fc_dev_loss_tmo = 60; /* seconds */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 453 | |
Masatake YAMATO | 10f4b89 | 2007-09-19 22:59:16 +0900 | [diff] [blame] | 454 | module_param_named(dev_loss_tmo, fc_dev_loss_tmo, uint, S_IRUGO|S_IWUSR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 455 | MODULE_PARM_DESC(dev_loss_tmo, |
| 456 | "Maximum number of seconds that the FC transport should" |
| 457 | " insulate the loss of a remote port. Once this value is" |
| 458 | " exceeded, the scsi target is removed. Value should be" |
| 459 | " between 1 and SCSI_DEVICE_BLOCK_MAX_TIMEOUT."); |
| 460 | |
Rob Landley | eb44820 | 2007-11-03 13:30:39 -0500 | [diff] [blame] | 461 | /* |
James Smart | 84314fd | 2006-08-18 17:30:09 -0400 | [diff] [blame] | 462 | * Netlink Infrastructure |
Rob Landley | eb44820 | 2007-11-03 13:30:39 -0500 | [diff] [blame] | 463 | */ |
James Smart | 84314fd | 2006-08-18 17:30:09 -0400 | [diff] [blame] | 464 | |
| 465 | static atomic_t fc_event_seq; |
| 466 | |
| 467 | /** |
| 468 | * fc_get_event_number - Obtain the next sequential FC event number |
| 469 | * |
| 470 | * Notes: |
Rob Landley | eb44820 | 2007-11-03 13:30:39 -0500 | [diff] [blame] | 471 | * We could have inlined this, but it would have required fc_event_seq to |
James Smart | 84314fd | 2006-08-18 17:30:09 -0400 | [diff] [blame] | 472 | * be exposed. For now, live with the subroutine call. |
| 473 | * Atomic used to avoid lock/unlock... |
Rob Landley | eb44820 | 2007-11-03 13:30:39 -0500 | [diff] [blame] | 474 | */ |
James Smart | 84314fd | 2006-08-18 17:30:09 -0400 | [diff] [blame] | 475 | u32 |
| 476 | fc_get_event_number(void) |
| 477 | { |
| 478 | return atomic_add_return(1, &fc_event_seq); |
| 479 | } |
| 480 | EXPORT_SYMBOL(fc_get_event_number); |
| 481 | |
| 482 | |
| 483 | /** |
| 484 | * fc_host_post_event - called to post an even on an fc_host. |
James Smart | 84314fd | 2006-08-18 17:30:09 -0400 | [diff] [blame] | 485 | * @shost: host the event occurred on |
| 486 | * @event_number: fc event number obtained from get_fc_event_number() |
| 487 | * @event_code: fc_host event being posted |
| 488 | * @event_data: 32bits of data for the event being posted |
| 489 | * |
| 490 | * Notes: |
| 491 | * This routine assumes no locks are held on entry. |
Rob Landley | eb44820 | 2007-11-03 13:30:39 -0500 | [diff] [blame] | 492 | */ |
James Smart | 84314fd | 2006-08-18 17:30:09 -0400 | [diff] [blame] | 493 | void |
| 494 | fc_host_post_event(struct Scsi_Host *shost, u32 event_number, |
| 495 | enum fc_host_event_code event_code, u32 event_data) |
| 496 | { |
| 497 | struct sk_buff *skb; |
| 498 | struct nlmsghdr *nlh; |
| 499 | struct fc_nl_event *event; |
| 500 | const char *name; |
| 501 | u32 len, skblen; |
| 502 | int err; |
| 503 | |
| 504 | if (!scsi_nl_sock) { |
| 505 | err = -ENOENT; |
| 506 | goto send_fail; |
| 507 | } |
| 508 | |
| 509 | len = FC_NL_MSGALIGN(sizeof(*event)); |
| 510 | skblen = NLMSG_SPACE(len); |
| 511 | |
| 512 | skb = alloc_skb(skblen, GFP_KERNEL); |
| 513 | if (!skb) { |
| 514 | err = -ENOBUFS; |
| 515 | goto send_fail; |
| 516 | } |
| 517 | |
| 518 | nlh = nlmsg_put(skb, 0, 0, SCSI_TRANSPORT_MSG, |
| 519 | skblen - sizeof(*nlh), 0); |
| 520 | if (!nlh) { |
| 521 | err = -ENOBUFS; |
| 522 | goto send_fail_skb; |
| 523 | } |
| 524 | event = NLMSG_DATA(nlh); |
| 525 | |
| 526 | INIT_SCSI_NL_HDR(&event->snlh, SCSI_NL_TRANSPORT_FC, |
| 527 | FC_NL_ASYNC_EVENT, len); |
| 528 | event->seconds = get_seconds(); |
| 529 | event->vendor_id = 0; |
| 530 | event->host_no = shost->host_no; |
| 531 | event->event_datalen = sizeof(u32); /* bytes */ |
| 532 | event->event_num = event_number; |
| 533 | event->event_code = event_code; |
| 534 | event->event_data = event_data; |
| 535 | |
Pablo Neira Ayuso | ff491a7 | 2009-02-05 23:56:36 -0800 | [diff] [blame^] | 536 | nlmsg_multicast(scsi_nl_sock, skb, 0, SCSI_NL_GRP_FC_EVENTS, |
| 537 | GFP_KERNEL); |
James Smart | 84314fd | 2006-08-18 17:30:09 -0400 | [diff] [blame] | 538 | return; |
| 539 | |
| 540 | send_fail_skb: |
| 541 | kfree_skb(skb); |
| 542 | send_fail: |
| 543 | name = get_fc_host_event_code_name(event_code); |
| 544 | printk(KERN_WARNING |
| 545 | "%s: Dropped Event : host %d %s data 0x%08x - err %d\n", |
Harvey Harrison | cadbd4a | 2008-07-03 23:47:27 -0700 | [diff] [blame] | 546 | __func__, shost->host_no, |
James Smart | 84314fd | 2006-08-18 17:30:09 -0400 | [diff] [blame] | 547 | (name) ? name : "<unknown>", event_data, err); |
| 548 | return; |
| 549 | } |
| 550 | EXPORT_SYMBOL(fc_host_post_event); |
| 551 | |
| 552 | |
| 553 | /** |
Rob Landley | eb44820 | 2007-11-03 13:30:39 -0500 | [diff] [blame] | 554 | * fc_host_post_vendor_event - called to post a vendor unique event on an fc_host |
James Smart | 84314fd | 2006-08-18 17:30:09 -0400 | [diff] [blame] | 555 | * @shost: host the event occurred on |
| 556 | * @event_number: fc event number obtained from get_fc_event_number() |
| 557 | * @data_len: amount, in bytes, of vendor unique data |
| 558 | * @data_buf: pointer to vendor unique data |
Rob Landley | eb44820 | 2007-11-03 13:30:39 -0500 | [diff] [blame] | 559 | * @vendor_id: Vendor id |
James Smart | 84314fd | 2006-08-18 17:30:09 -0400 | [diff] [blame] | 560 | * |
| 561 | * Notes: |
| 562 | * This routine assumes no locks are held on entry. |
Rob Landley | eb44820 | 2007-11-03 13:30:39 -0500 | [diff] [blame] | 563 | */ |
James Smart | 84314fd | 2006-08-18 17:30:09 -0400 | [diff] [blame] | 564 | void |
| 565 | fc_host_post_vendor_event(struct Scsi_Host *shost, u32 event_number, |
James Smart | f14e2e2 | 2006-08-22 09:55:23 -0400 | [diff] [blame] | 566 | u32 data_len, char * data_buf, u64 vendor_id) |
James Smart | 84314fd | 2006-08-18 17:30:09 -0400 | [diff] [blame] | 567 | { |
| 568 | struct sk_buff *skb; |
| 569 | struct nlmsghdr *nlh; |
| 570 | struct fc_nl_event *event; |
| 571 | u32 len, skblen; |
| 572 | int err; |
| 573 | |
| 574 | if (!scsi_nl_sock) { |
| 575 | err = -ENOENT; |
| 576 | goto send_vendor_fail; |
| 577 | } |
| 578 | |
| 579 | len = FC_NL_MSGALIGN(sizeof(*event) + data_len); |
| 580 | skblen = NLMSG_SPACE(len); |
| 581 | |
| 582 | skb = alloc_skb(skblen, GFP_KERNEL); |
| 583 | if (!skb) { |
| 584 | err = -ENOBUFS; |
| 585 | goto send_vendor_fail; |
| 586 | } |
| 587 | |
| 588 | nlh = nlmsg_put(skb, 0, 0, SCSI_TRANSPORT_MSG, |
| 589 | skblen - sizeof(*nlh), 0); |
| 590 | if (!nlh) { |
| 591 | err = -ENOBUFS; |
| 592 | goto send_vendor_fail_skb; |
| 593 | } |
| 594 | event = NLMSG_DATA(nlh); |
| 595 | |
| 596 | INIT_SCSI_NL_HDR(&event->snlh, SCSI_NL_TRANSPORT_FC, |
| 597 | FC_NL_ASYNC_EVENT, len); |
| 598 | event->seconds = get_seconds(); |
| 599 | event->vendor_id = vendor_id; |
| 600 | event->host_no = shost->host_no; |
| 601 | event->event_datalen = data_len; /* bytes */ |
| 602 | event->event_num = event_number; |
| 603 | event->event_code = FCH_EVT_VENDOR_UNIQUE; |
| 604 | memcpy(&event->event_data, data_buf, data_len); |
| 605 | |
Pablo Neira Ayuso | ff491a7 | 2009-02-05 23:56:36 -0800 | [diff] [blame^] | 606 | nlmsg_multicast(scsi_nl_sock, skb, 0, SCSI_NL_GRP_FC_EVENTS, |
| 607 | GFP_KERNEL); |
James Smart | 84314fd | 2006-08-18 17:30:09 -0400 | [diff] [blame] | 608 | return; |
| 609 | |
| 610 | send_vendor_fail_skb: |
| 611 | kfree_skb(skb); |
| 612 | send_vendor_fail: |
| 613 | printk(KERN_WARNING |
| 614 | "%s: Dropped Event : host %d vendor_unique - err %d\n", |
Harvey Harrison | cadbd4a | 2008-07-03 23:47:27 -0700 | [diff] [blame] | 615 | __func__, shost->host_no, err); |
James Smart | 84314fd | 2006-08-18 17:30:09 -0400 | [diff] [blame] | 616 | return; |
| 617 | } |
| 618 | EXPORT_SYMBOL(fc_host_post_vendor_event); |
| 619 | |
| 620 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 621 | |
| 622 | static __init int fc_transport_init(void) |
| 623 | { |
James Smart | 84314fd | 2006-08-18 17:30:09 -0400 | [diff] [blame] | 624 | int error; |
| 625 | |
| 626 | atomic_set(&fc_event_seq, 0); |
| 627 | |
| 628 | error = transport_class_register(&fc_host_class); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 629 | if (error) |
| 630 | return error; |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 631 | error = transport_class_register(&fc_vport_class); |
| 632 | if (error) |
| 633 | return error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 634 | error = transport_class_register(&fc_rport_class); |
| 635 | if (error) |
| 636 | return error; |
| 637 | return transport_class_register(&fc_transport_class); |
| 638 | } |
| 639 | |
| 640 | static void __exit fc_transport_exit(void) |
| 641 | { |
| 642 | transport_class_unregister(&fc_transport_class); |
| 643 | transport_class_unregister(&fc_rport_class); |
| 644 | transport_class_unregister(&fc_host_class); |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 645 | transport_class_unregister(&fc_vport_class); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 646 | } |
| 647 | |
| 648 | /* |
| 649 | * FC Remote Port Attribute Management |
| 650 | */ |
| 651 | |
| 652 | #define fc_rport_show_function(field, format_string, sz, cast) \ |
| 653 | static ssize_t \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 654 | show_fc_rport_##field (struct device *dev, \ |
| 655 | struct device_attribute *attr, char *buf) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 656 | { \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 657 | struct fc_rport *rport = transport_class_to_rport(dev); \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 658 | struct Scsi_Host *shost = rport_to_shost(rport); \ |
| 659 | struct fc_internal *i = to_fc_internal(shost->transportt); \ |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 660 | if ((i->f->get_rport_##field) && \ |
| 661 | !((rport->port_state == FC_PORTSTATE_BLOCKED) || \ |
James.Smart@Emulex.Com | 42e3314 | 2005-12-15 09:56:22 -0500 | [diff] [blame] | 662 | (rport->port_state == FC_PORTSTATE_DELETED) || \ |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 663 | (rport->port_state == FC_PORTSTATE_NOTPRESENT))) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 664 | i->f->get_rport_##field(rport); \ |
| 665 | return snprintf(buf, sz, format_string, cast rport->field); \ |
| 666 | } |
| 667 | |
| 668 | #define fc_rport_store_function(field) \ |
| 669 | static ssize_t \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 670 | store_fc_rport_##field(struct device *dev, \ |
| 671 | struct device_attribute *attr, \ |
| 672 | const char *buf, size_t count) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 673 | { \ |
| 674 | int val; \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 675 | struct fc_rport *rport = transport_class_to_rport(dev); \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 676 | struct Scsi_Host *shost = rport_to_shost(rport); \ |
| 677 | struct fc_internal *i = to_fc_internal(shost->transportt); \ |
James Smart | 0f29b96 | 2006-08-18 17:33:29 -0400 | [diff] [blame] | 678 | char *cp; \ |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 679 | if ((rport->port_state == FC_PORTSTATE_BLOCKED) || \ |
James.Smart@Emulex.Com | 42e3314 | 2005-12-15 09:56:22 -0500 | [diff] [blame] | 680 | (rport->port_state == FC_PORTSTATE_DELETED) || \ |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 681 | (rport->port_state == FC_PORTSTATE_NOTPRESENT)) \ |
| 682 | return -EBUSY; \ |
James Smart | 0f29b96 | 2006-08-18 17:33:29 -0400 | [diff] [blame] | 683 | val = simple_strtoul(buf, &cp, 0); \ |
| 684 | if (*cp && (*cp != '\n')) \ |
| 685 | return -EINVAL; \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 686 | i->f->set_rport_##field(rport, val); \ |
| 687 | return count; \ |
| 688 | } |
| 689 | |
| 690 | #define fc_rport_rd_attr(field, format_string, sz) \ |
| 691 | fc_rport_show_function(field, format_string, sz, ) \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 692 | static FC_DEVICE_ATTR(rport, field, S_IRUGO, \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 693 | show_fc_rport_##field, NULL) |
| 694 | |
| 695 | #define fc_rport_rd_attr_cast(field, format_string, sz, cast) \ |
| 696 | fc_rport_show_function(field, format_string, sz, (cast)) \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 697 | static FC_DEVICE_ATTR(rport, field, S_IRUGO, \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 698 | show_fc_rport_##field, NULL) |
| 699 | |
| 700 | #define fc_rport_rw_attr(field, format_string, sz) \ |
| 701 | fc_rport_show_function(field, format_string, sz, ) \ |
| 702 | fc_rport_store_function(field) \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 703 | static FC_DEVICE_ATTR(rport, field, S_IRUGO | S_IWUSR, \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 704 | show_fc_rport_##field, \ |
| 705 | store_fc_rport_##field) |
| 706 | |
| 707 | |
| 708 | #define fc_private_rport_show_function(field, format_string, sz, cast) \ |
| 709 | static ssize_t \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 710 | show_fc_rport_##field (struct device *dev, \ |
| 711 | struct device_attribute *attr, char *buf) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 712 | { \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 713 | struct fc_rport *rport = transport_class_to_rport(dev); \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 714 | return snprintf(buf, sz, format_string, cast rport->field); \ |
| 715 | } |
| 716 | |
| 717 | #define fc_private_rport_rd_attr(field, format_string, sz) \ |
| 718 | fc_private_rport_show_function(field, format_string, sz, ) \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 719 | static FC_DEVICE_ATTR(rport, field, S_IRUGO, \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 720 | show_fc_rport_##field, NULL) |
| 721 | |
| 722 | #define fc_private_rport_rd_attr_cast(field, format_string, sz, cast) \ |
| 723 | fc_private_rport_show_function(field, format_string, sz, (cast)) \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 724 | static FC_DEVICE_ATTR(rport, field, S_IRUGO, \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 725 | show_fc_rport_##field, NULL) |
| 726 | |
| 727 | |
| 728 | #define fc_private_rport_rd_enum_attr(title, maxlen) \ |
| 729 | static ssize_t \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 730 | show_fc_rport_##title (struct device *dev, \ |
| 731 | struct device_attribute *attr, char *buf) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 732 | { \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 733 | struct fc_rport *rport = transport_class_to_rport(dev); \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 734 | const char *name; \ |
| 735 | name = get_fc_##title##_name(rport->title); \ |
| 736 | if (!name) \ |
| 737 | return -EINVAL; \ |
| 738 | return snprintf(buf, maxlen, "%s\n", name); \ |
| 739 | } \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 740 | static FC_DEVICE_ATTR(rport, title, S_IRUGO, \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 741 | show_fc_rport_##title, NULL) |
| 742 | |
| 743 | |
| 744 | #define SETUP_RPORT_ATTRIBUTE_RD(field) \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 745 | i->private_rport_attrs[count] = device_attr_rport_##field; \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 746 | i->private_rport_attrs[count].attr.mode = S_IRUGO; \ |
| 747 | i->private_rport_attrs[count].store = NULL; \ |
| 748 | i->rport_attrs[count] = &i->private_rport_attrs[count]; \ |
| 749 | if (i->f->show_rport_##field) \ |
| 750 | count++ |
| 751 | |
| 752 | #define SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(field) \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 753 | i->private_rport_attrs[count] = device_attr_rport_##field; \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 754 | i->private_rport_attrs[count].attr.mode = S_IRUGO; \ |
| 755 | i->private_rport_attrs[count].store = NULL; \ |
| 756 | i->rport_attrs[count] = &i->private_rport_attrs[count]; \ |
| 757 | count++ |
| 758 | |
| 759 | #define SETUP_RPORT_ATTRIBUTE_RW(field) \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 760 | i->private_rport_attrs[count] = device_attr_rport_##field; \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 761 | if (!i->f->set_rport_##field) { \ |
| 762 | i->private_rport_attrs[count].attr.mode = S_IRUGO; \ |
| 763 | i->private_rport_attrs[count].store = NULL; \ |
| 764 | } \ |
| 765 | i->rport_attrs[count] = &i->private_rport_attrs[count]; \ |
| 766 | if (i->f->show_rport_##field) \ |
| 767 | count++ |
| 768 | |
James Smart | 0f29b96 | 2006-08-18 17:33:29 -0400 | [diff] [blame] | 769 | #define SETUP_PRIVATE_RPORT_ATTRIBUTE_RW(field) \ |
| 770 | { \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 771 | i->private_rport_attrs[count] = device_attr_rport_##field; \ |
James Smart | 0f29b96 | 2006-08-18 17:33:29 -0400 | [diff] [blame] | 772 | i->rport_attrs[count] = &i->private_rport_attrs[count]; \ |
| 773 | count++; \ |
| 774 | } |
| 775 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 776 | |
| 777 | /* The FC Transport Remote Port Attributes: */ |
| 778 | |
| 779 | /* Fixed Remote Port Attributes */ |
| 780 | |
| 781 | fc_private_rport_rd_attr(maxframe_size, "%u bytes\n", 20); |
| 782 | |
| 783 | static ssize_t |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 784 | show_fc_rport_supported_classes (struct device *dev, |
| 785 | struct device_attribute *attr, char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 786 | { |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 787 | struct fc_rport *rport = transport_class_to_rport(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 788 | if (rport->supported_classes == FC_COS_UNSPECIFIED) |
| 789 | return snprintf(buf, 20, "unspecified\n"); |
| 790 | return get_fc_cos_names(rport->supported_classes, buf); |
| 791 | } |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 792 | static FC_DEVICE_ATTR(rport, supported_classes, S_IRUGO, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 793 | show_fc_rport_supported_classes, NULL); |
| 794 | |
| 795 | /* Dynamic Remote Port Attributes */ |
| 796 | |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 797 | /* |
| 798 | * dev_loss_tmo attribute |
| 799 | */ |
| 800 | fc_rport_show_function(dev_loss_tmo, "%d\n", 20, ) |
| 801 | static ssize_t |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 802 | store_fc_rport_dev_loss_tmo(struct device *dev, struct device_attribute *attr, |
| 803 | const char *buf, size_t count) |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 804 | { |
| 805 | int val; |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 806 | struct fc_rport *rport = transport_class_to_rport(dev); |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 807 | struct Scsi_Host *shost = rport_to_shost(rport); |
| 808 | struct fc_internal *i = to_fc_internal(shost->transportt); |
James Smart | 0f29b96 | 2006-08-18 17:33:29 -0400 | [diff] [blame] | 809 | char *cp; |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 810 | if ((rport->port_state == FC_PORTSTATE_BLOCKED) || |
James.Smart@Emulex.Com | 42e3314 | 2005-12-15 09:56:22 -0500 | [diff] [blame] | 811 | (rport->port_state == FC_PORTSTATE_DELETED) || |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 812 | (rport->port_state == FC_PORTSTATE_NOTPRESENT)) |
| 813 | return -EBUSY; |
James Smart | 0f29b96 | 2006-08-18 17:33:29 -0400 | [diff] [blame] | 814 | val = simple_strtoul(buf, &cp, 0); |
| 815 | if ((*cp && (*cp != '\n')) || |
| 816 | (val < 0) || (val > SCSI_DEVICE_BLOCK_MAX_TIMEOUT)) |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 817 | return -EINVAL; |
| 818 | i->f->set_rport_dev_loss_tmo(rport, val); |
| 819 | return count; |
| 820 | } |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 821 | static FC_DEVICE_ATTR(rport, dev_loss_tmo, S_IRUGO | S_IWUSR, |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 822 | show_fc_rport_dev_loss_tmo, store_fc_rport_dev_loss_tmo); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 823 | |
| 824 | |
| 825 | /* Private Remote Port Attributes */ |
| 826 | |
| 827 | fc_private_rport_rd_attr_cast(node_name, "0x%llx\n", 20, unsigned long long); |
| 828 | fc_private_rport_rd_attr_cast(port_name, "0x%llx\n", 20, unsigned long long); |
| 829 | fc_private_rport_rd_attr(port_id, "0x%06x\n", 20); |
| 830 | |
| 831 | static ssize_t |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 832 | show_fc_rport_roles (struct device *dev, struct device_attribute *attr, |
| 833 | char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 834 | { |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 835 | struct fc_rport *rport = transport_class_to_rport(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 836 | |
| 837 | /* identify any roles that are port_id specific */ |
| 838 | if ((rport->port_id != -1) && |
| 839 | (rport->port_id & FC_WELLKNOWN_PORTID_MASK) == |
| 840 | FC_WELLKNOWN_PORTID_MASK) { |
| 841 | switch (rport->port_id & FC_WELLKNOWN_ROLE_MASK) { |
| 842 | case FC_FPORT_PORTID: |
| 843 | return snprintf(buf, 30, "Fabric Port\n"); |
| 844 | case FC_FABCTLR_PORTID: |
| 845 | return snprintf(buf, 30, "Fabric Controller\n"); |
| 846 | case FC_DIRSRVR_PORTID: |
| 847 | return snprintf(buf, 30, "Directory Server\n"); |
| 848 | case FC_TIMESRVR_PORTID: |
| 849 | return snprintf(buf, 30, "Time Server\n"); |
| 850 | case FC_MGMTSRVR_PORTID: |
| 851 | return snprintf(buf, 30, "Management Server\n"); |
| 852 | default: |
| 853 | return snprintf(buf, 30, "Unknown Fabric Entity\n"); |
| 854 | } |
| 855 | } else { |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 856 | if (rport->roles == FC_PORT_ROLE_UNKNOWN) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 857 | return snprintf(buf, 20, "unknown\n"); |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 858 | return get_fc_port_roles_names(rport->roles, buf); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 859 | } |
| 860 | } |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 861 | static FC_DEVICE_ATTR(rport, roles, S_IRUGO, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 862 | show_fc_rport_roles, NULL); |
| 863 | |
| 864 | fc_private_rport_rd_enum_attr(port_state, FC_PORTSTATE_MAX_NAMELEN); |
| 865 | fc_private_rport_rd_attr(scsi_target_id, "%d\n", 20); |
| 866 | |
James Smart | 0f29b96 | 2006-08-18 17:33:29 -0400 | [diff] [blame] | 867 | /* |
| 868 | * fast_io_fail_tmo attribute |
| 869 | */ |
| 870 | static ssize_t |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 871 | show_fc_rport_fast_io_fail_tmo (struct device *dev, |
| 872 | struct device_attribute *attr, char *buf) |
James Smart | 0f29b96 | 2006-08-18 17:33:29 -0400 | [diff] [blame] | 873 | { |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 874 | struct fc_rport *rport = transport_class_to_rport(dev); |
James Smart | 0f29b96 | 2006-08-18 17:33:29 -0400 | [diff] [blame] | 875 | |
| 876 | if (rport->fast_io_fail_tmo == -1) |
| 877 | return snprintf(buf, 5, "off\n"); |
| 878 | return snprintf(buf, 20, "%d\n", rport->fast_io_fail_tmo); |
| 879 | } |
| 880 | |
| 881 | static ssize_t |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 882 | store_fc_rport_fast_io_fail_tmo(struct device *dev, |
| 883 | struct device_attribute *attr, const char *buf, |
| 884 | size_t count) |
James Smart | 0f29b96 | 2006-08-18 17:33:29 -0400 | [diff] [blame] | 885 | { |
| 886 | int val; |
| 887 | char *cp; |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 888 | struct fc_rport *rport = transport_class_to_rport(dev); |
James Smart | 0f29b96 | 2006-08-18 17:33:29 -0400 | [diff] [blame] | 889 | |
| 890 | if ((rport->port_state == FC_PORTSTATE_BLOCKED) || |
| 891 | (rport->port_state == FC_PORTSTATE_DELETED) || |
| 892 | (rport->port_state == FC_PORTSTATE_NOTPRESENT)) |
| 893 | return -EBUSY; |
| 894 | if (strncmp(buf, "off", 3) == 0) |
| 895 | rport->fast_io_fail_tmo = -1; |
| 896 | else { |
| 897 | val = simple_strtoul(buf, &cp, 0); |
| 898 | if ((*cp && (*cp != '\n')) || |
| 899 | (val < 0) || (val >= rport->dev_loss_tmo)) |
| 900 | return -EINVAL; |
| 901 | rport->fast_io_fail_tmo = val; |
| 902 | } |
| 903 | return count; |
| 904 | } |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 905 | static FC_DEVICE_ATTR(rport, fast_io_fail_tmo, S_IRUGO | S_IWUSR, |
James Smart | 0f29b96 | 2006-08-18 17:33:29 -0400 | [diff] [blame] | 906 | show_fc_rport_fast_io_fail_tmo, store_fc_rport_fast_io_fail_tmo); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 907 | |
| 908 | |
| 909 | /* |
| 910 | * FC SCSI Target Attribute Management |
| 911 | */ |
| 912 | |
| 913 | /* |
| 914 | * Note: in the target show function we recognize when the remote |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 915 | * port is in the heirarchy and do not allow the driver to get |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 916 | * involved in sysfs functions. The driver only gets involved if |
| 917 | * it's the "old" style that doesn't use rports. |
| 918 | */ |
| 919 | #define fc_starget_show_function(field, format_string, sz, cast) \ |
| 920 | static ssize_t \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 921 | show_fc_starget_##field (struct device *dev, \ |
| 922 | struct device_attribute *attr, char *buf) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 923 | { \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 924 | struct scsi_target *starget = transport_class_to_starget(dev); \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 925 | struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); \ |
| 926 | struct fc_internal *i = to_fc_internal(shost->transportt); \ |
| 927 | struct fc_rport *rport = starget_to_rport(starget); \ |
| 928 | if (rport) \ |
| 929 | fc_starget_##field(starget) = rport->field; \ |
| 930 | else if (i->f->get_starget_##field) \ |
| 931 | i->f->get_starget_##field(starget); \ |
| 932 | return snprintf(buf, sz, format_string, \ |
| 933 | cast fc_starget_##field(starget)); \ |
| 934 | } |
| 935 | |
| 936 | #define fc_starget_rd_attr(field, format_string, sz) \ |
| 937 | fc_starget_show_function(field, format_string, sz, ) \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 938 | static FC_DEVICE_ATTR(starget, field, S_IRUGO, \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 939 | show_fc_starget_##field, NULL) |
| 940 | |
| 941 | #define fc_starget_rd_attr_cast(field, format_string, sz, cast) \ |
| 942 | fc_starget_show_function(field, format_string, sz, (cast)) \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 943 | static FC_DEVICE_ATTR(starget, field, S_IRUGO, \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 944 | show_fc_starget_##field, NULL) |
| 945 | |
| 946 | #define SETUP_STARGET_ATTRIBUTE_RD(field) \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 947 | i->private_starget_attrs[count] = device_attr_starget_##field; \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 948 | i->private_starget_attrs[count].attr.mode = S_IRUGO; \ |
| 949 | i->private_starget_attrs[count].store = NULL; \ |
| 950 | i->starget_attrs[count] = &i->private_starget_attrs[count]; \ |
| 951 | if (i->f->show_starget_##field) \ |
| 952 | count++ |
| 953 | |
| 954 | #define SETUP_STARGET_ATTRIBUTE_RW(field) \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 955 | i->private_starget_attrs[count] = device_attr_starget_##field; \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 956 | if (!i->f->set_starget_##field) { \ |
| 957 | i->private_starget_attrs[count].attr.mode = S_IRUGO; \ |
| 958 | i->private_starget_attrs[count].store = NULL; \ |
| 959 | } \ |
| 960 | i->starget_attrs[count] = &i->private_starget_attrs[count]; \ |
| 961 | if (i->f->show_starget_##field) \ |
| 962 | count++ |
| 963 | |
| 964 | /* The FC Transport SCSI Target Attributes: */ |
| 965 | fc_starget_rd_attr_cast(node_name, "0x%llx\n", 20, unsigned long long); |
| 966 | fc_starget_rd_attr_cast(port_name, "0x%llx\n", 20, unsigned long long); |
| 967 | fc_starget_rd_attr(port_id, "0x%06x\n", 20); |
| 968 | |
| 969 | |
| 970 | /* |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 971 | * FC Virtual Port Attribute Management |
| 972 | */ |
| 973 | |
| 974 | #define fc_vport_show_function(field, format_string, sz, cast) \ |
| 975 | static ssize_t \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 976 | show_fc_vport_##field (struct device *dev, \ |
| 977 | struct device_attribute *attr, char *buf) \ |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 978 | { \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 979 | struct fc_vport *vport = transport_class_to_vport(dev); \ |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 980 | struct Scsi_Host *shost = vport_to_shost(vport); \ |
| 981 | struct fc_internal *i = to_fc_internal(shost->transportt); \ |
| 982 | if ((i->f->get_vport_##field) && \ |
| 983 | !(vport->flags & (FC_VPORT_DEL | FC_VPORT_CREATING))) \ |
| 984 | i->f->get_vport_##field(vport); \ |
| 985 | return snprintf(buf, sz, format_string, cast vport->field); \ |
| 986 | } |
| 987 | |
| 988 | #define fc_vport_store_function(field) \ |
| 989 | static ssize_t \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 990 | store_fc_vport_##field(struct device *dev, \ |
| 991 | struct device_attribute *attr, \ |
| 992 | const char *buf, size_t count) \ |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 993 | { \ |
| 994 | int val; \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 995 | struct fc_vport *vport = transport_class_to_vport(dev); \ |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 996 | struct Scsi_Host *shost = vport_to_shost(vport); \ |
| 997 | struct fc_internal *i = to_fc_internal(shost->transportt); \ |
| 998 | char *cp; \ |
| 999 | if (vport->flags & (FC_VPORT_DEL | FC_VPORT_CREATING)) \ |
| 1000 | return -EBUSY; \ |
| 1001 | val = simple_strtoul(buf, &cp, 0); \ |
| 1002 | if (*cp && (*cp != '\n')) \ |
| 1003 | return -EINVAL; \ |
| 1004 | i->f->set_vport_##field(vport, val); \ |
| 1005 | return count; \ |
| 1006 | } |
| 1007 | |
| 1008 | #define fc_vport_store_str_function(field, slen) \ |
| 1009 | static ssize_t \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1010 | store_fc_vport_##field(struct device *dev, \ |
| 1011 | struct device_attribute *attr, \ |
| 1012 | const char *buf, size_t count) \ |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 1013 | { \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1014 | struct fc_vport *vport = transport_class_to_vport(dev); \ |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 1015 | struct Scsi_Host *shost = vport_to_shost(vport); \ |
| 1016 | struct fc_internal *i = to_fc_internal(shost->transportt); \ |
| 1017 | unsigned int cnt=count; \ |
| 1018 | \ |
| 1019 | /* count may include a LF at end of string */ \ |
| 1020 | if (buf[cnt-1] == '\n') \ |
| 1021 | cnt--; \ |
| 1022 | if (cnt > ((slen) - 1)) \ |
| 1023 | return -EINVAL; \ |
| 1024 | memcpy(vport->field, buf, cnt); \ |
| 1025 | i->f->set_vport_##field(vport); \ |
| 1026 | return count; \ |
| 1027 | } |
| 1028 | |
| 1029 | #define fc_vport_rd_attr(field, format_string, sz) \ |
| 1030 | fc_vport_show_function(field, format_string, sz, ) \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1031 | static FC_DEVICE_ATTR(vport, field, S_IRUGO, \ |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 1032 | show_fc_vport_##field, NULL) |
| 1033 | |
| 1034 | #define fc_vport_rd_attr_cast(field, format_string, sz, cast) \ |
| 1035 | fc_vport_show_function(field, format_string, sz, (cast)) \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1036 | static FC_DEVICE_ATTR(vport, field, S_IRUGO, \ |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 1037 | show_fc_vport_##field, NULL) |
| 1038 | |
| 1039 | #define fc_vport_rw_attr(field, format_string, sz) \ |
| 1040 | fc_vport_show_function(field, format_string, sz, ) \ |
| 1041 | fc_vport_store_function(field) \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1042 | static FC_DEVICE_ATTR(vport, field, S_IRUGO | S_IWUSR, \ |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 1043 | show_fc_vport_##field, \ |
| 1044 | store_fc_vport_##field) |
| 1045 | |
| 1046 | #define fc_private_vport_show_function(field, format_string, sz, cast) \ |
| 1047 | static ssize_t \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1048 | show_fc_vport_##field (struct device *dev, \ |
| 1049 | struct device_attribute *attr, char *buf) \ |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 1050 | { \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1051 | struct fc_vport *vport = transport_class_to_vport(dev); \ |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 1052 | return snprintf(buf, sz, format_string, cast vport->field); \ |
| 1053 | } |
| 1054 | |
| 1055 | #define fc_private_vport_store_u32_function(field) \ |
| 1056 | static ssize_t \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1057 | store_fc_vport_##field(struct device *dev, \ |
| 1058 | struct device_attribute *attr, \ |
| 1059 | const char *buf, size_t count) \ |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 1060 | { \ |
| 1061 | u32 val; \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1062 | struct fc_vport *vport = transport_class_to_vport(dev); \ |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 1063 | char *cp; \ |
| 1064 | if (vport->flags & (FC_VPORT_DEL | FC_VPORT_CREATING)) \ |
| 1065 | return -EBUSY; \ |
| 1066 | val = simple_strtoul(buf, &cp, 0); \ |
| 1067 | if (*cp && (*cp != '\n')) \ |
| 1068 | return -EINVAL; \ |
| 1069 | vport->field = val; \ |
| 1070 | return count; \ |
| 1071 | } |
| 1072 | |
| 1073 | |
| 1074 | #define fc_private_vport_rd_attr(field, format_string, sz) \ |
| 1075 | fc_private_vport_show_function(field, format_string, sz, ) \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1076 | static FC_DEVICE_ATTR(vport, field, S_IRUGO, \ |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 1077 | show_fc_vport_##field, NULL) |
| 1078 | |
| 1079 | #define fc_private_vport_rd_attr_cast(field, format_string, sz, cast) \ |
| 1080 | fc_private_vport_show_function(field, format_string, sz, (cast)) \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1081 | static FC_DEVICE_ATTR(vport, field, S_IRUGO, \ |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 1082 | show_fc_vport_##field, NULL) |
| 1083 | |
| 1084 | #define fc_private_vport_rw_u32_attr(field, format_string, sz) \ |
| 1085 | fc_private_vport_show_function(field, format_string, sz, ) \ |
| 1086 | fc_private_vport_store_u32_function(field) \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1087 | static FC_DEVICE_ATTR(vport, field, S_IRUGO | S_IWUSR, \ |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 1088 | show_fc_vport_##field, \ |
| 1089 | store_fc_vport_##field) |
| 1090 | |
| 1091 | |
| 1092 | #define fc_private_vport_rd_enum_attr(title, maxlen) \ |
| 1093 | static ssize_t \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1094 | show_fc_vport_##title (struct device *dev, \ |
| 1095 | struct device_attribute *attr, \ |
| 1096 | char *buf) \ |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 1097 | { \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1098 | struct fc_vport *vport = transport_class_to_vport(dev); \ |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 1099 | const char *name; \ |
| 1100 | name = get_fc_##title##_name(vport->title); \ |
| 1101 | if (!name) \ |
| 1102 | return -EINVAL; \ |
| 1103 | return snprintf(buf, maxlen, "%s\n", name); \ |
| 1104 | } \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1105 | static FC_DEVICE_ATTR(vport, title, S_IRUGO, \ |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 1106 | show_fc_vport_##title, NULL) |
| 1107 | |
| 1108 | |
| 1109 | #define SETUP_VPORT_ATTRIBUTE_RD(field) \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1110 | i->private_vport_attrs[count] = device_attr_vport_##field; \ |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 1111 | i->private_vport_attrs[count].attr.mode = S_IRUGO; \ |
| 1112 | i->private_vport_attrs[count].store = NULL; \ |
| 1113 | i->vport_attrs[count] = &i->private_vport_attrs[count]; \ |
| 1114 | if (i->f->get_##field) \ |
| 1115 | count++ |
| 1116 | /* NOTE: Above MACRO differs: checks function not show bit */ |
| 1117 | |
| 1118 | #define SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(field) \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1119 | i->private_vport_attrs[count] = device_attr_vport_##field; \ |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 1120 | i->private_vport_attrs[count].attr.mode = S_IRUGO; \ |
| 1121 | i->private_vport_attrs[count].store = NULL; \ |
| 1122 | i->vport_attrs[count] = &i->private_vport_attrs[count]; \ |
| 1123 | count++ |
| 1124 | |
| 1125 | #define SETUP_VPORT_ATTRIBUTE_WR(field) \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1126 | i->private_vport_attrs[count] = device_attr_vport_##field; \ |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 1127 | i->vport_attrs[count] = &i->private_vport_attrs[count]; \ |
| 1128 | if (i->f->field) \ |
| 1129 | count++ |
| 1130 | /* NOTE: Above MACRO differs: checks function */ |
| 1131 | |
| 1132 | #define SETUP_VPORT_ATTRIBUTE_RW(field) \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1133 | i->private_vport_attrs[count] = device_attr_vport_##field; \ |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 1134 | if (!i->f->set_vport_##field) { \ |
| 1135 | i->private_vport_attrs[count].attr.mode = S_IRUGO; \ |
| 1136 | i->private_vport_attrs[count].store = NULL; \ |
| 1137 | } \ |
| 1138 | i->vport_attrs[count] = &i->private_vport_attrs[count]; \ |
| 1139 | count++ |
| 1140 | /* NOTE: Above MACRO differs: does not check show bit */ |
| 1141 | |
| 1142 | #define SETUP_PRIVATE_VPORT_ATTRIBUTE_RW(field) \ |
| 1143 | { \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1144 | i->private_vport_attrs[count] = device_attr_vport_##field; \ |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 1145 | i->vport_attrs[count] = &i->private_vport_attrs[count]; \ |
| 1146 | count++; \ |
| 1147 | } |
| 1148 | |
| 1149 | |
| 1150 | /* The FC Transport Virtual Port Attributes: */ |
| 1151 | |
| 1152 | /* Fixed Virtual Port Attributes */ |
| 1153 | |
| 1154 | /* Dynamic Virtual Port Attributes */ |
| 1155 | |
| 1156 | /* Private Virtual Port Attributes */ |
| 1157 | |
| 1158 | fc_private_vport_rd_enum_attr(vport_state, FC_VPORTSTATE_MAX_NAMELEN); |
| 1159 | fc_private_vport_rd_enum_attr(vport_last_state, FC_VPORTSTATE_MAX_NAMELEN); |
| 1160 | fc_private_vport_rd_attr_cast(node_name, "0x%llx\n", 20, unsigned long long); |
| 1161 | fc_private_vport_rd_attr_cast(port_name, "0x%llx\n", 20, unsigned long long); |
| 1162 | |
| 1163 | static ssize_t |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1164 | show_fc_vport_roles (struct device *dev, struct device_attribute *attr, |
| 1165 | char *buf) |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 1166 | { |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1167 | struct fc_vport *vport = transport_class_to_vport(dev); |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 1168 | |
| 1169 | if (vport->roles == FC_PORT_ROLE_UNKNOWN) |
| 1170 | return snprintf(buf, 20, "unknown\n"); |
| 1171 | return get_fc_port_roles_names(vport->roles, buf); |
| 1172 | } |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1173 | static FC_DEVICE_ATTR(vport, roles, S_IRUGO, show_fc_vport_roles, NULL); |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 1174 | |
| 1175 | fc_private_vport_rd_enum_attr(vport_type, FC_PORTTYPE_MAX_NAMELEN); |
| 1176 | |
| 1177 | fc_private_vport_show_function(symbolic_name, "%s\n", |
| 1178 | FC_VPORT_SYMBOLIC_NAMELEN + 1, ) |
| 1179 | fc_vport_store_str_function(symbolic_name, FC_VPORT_SYMBOLIC_NAMELEN) |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1180 | static FC_DEVICE_ATTR(vport, symbolic_name, S_IRUGO | S_IWUSR, |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 1181 | show_fc_vport_symbolic_name, store_fc_vport_symbolic_name); |
| 1182 | |
| 1183 | static ssize_t |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1184 | store_fc_vport_delete(struct device *dev, struct device_attribute *attr, |
| 1185 | const char *buf, size_t count) |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 1186 | { |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1187 | struct fc_vport *vport = transport_class_to_vport(dev); |
James Smart | 9ef3e4a | 2007-05-24 19:04:44 -0400 | [diff] [blame] | 1188 | struct Scsi_Host *shost = vport_to_shost(vport); |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 1189 | |
James Smart | 9ef3e4a | 2007-05-24 19:04:44 -0400 | [diff] [blame] | 1190 | fc_queue_work(shost, &vport->vport_delete_work); |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 1191 | return count; |
| 1192 | } |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1193 | static FC_DEVICE_ATTR(vport, vport_delete, S_IWUSR, |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 1194 | NULL, store_fc_vport_delete); |
| 1195 | |
| 1196 | |
| 1197 | /* |
| 1198 | * Enable/Disable vport |
| 1199 | * Write "1" to disable, write "0" to enable |
| 1200 | */ |
| 1201 | static ssize_t |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1202 | store_fc_vport_disable(struct device *dev, struct device_attribute *attr, |
| 1203 | const char *buf, |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 1204 | size_t count) |
| 1205 | { |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1206 | struct fc_vport *vport = transport_class_to_vport(dev); |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 1207 | struct Scsi_Host *shost = vport_to_shost(vport); |
| 1208 | struct fc_internal *i = to_fc_internal(shost->transportt); |
| 1209 | int stat; |
| 1210 | |
| 1211 | if (vport->flags & (FC_VPORT_DEL | FC_VPORT_CREATING)) |
| 1212 | return -EBUSY; |
| 1213 | |
| 1214 | if (*buf == '0') { |
| 1215 | if (vport->vport_state != FC_VPORT_DISABLED) |
| 1216 | return -EALREADY; |
| 1217 | } else if (*buf == '1') { |
| 1218 | if (vport->vport_state == FC_VPORT_DISABLED) |
| 1219 | return -EALREADY; |
| 1220 | } else |
| 1221 | return -EINVAL; |
| 1222 | |
| 1223 | stat = i->f->vport_disable(vport, ((*buf == '0') ? false : true)); |
| 1224 | return stat ? stat : count; |
| 1225 | } |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1226 | static FC_DEVICE_ATTR(vport, vport_disable, S_IWUSR, |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 1227 | NULL, store_fc_vport_disable); |
| 1228 | |
| 1229 | |
| 1230 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1231 | * Host Attribute Management |
| 1232 | */ |
| 1233 | |
| 1234 | #define fc_host_show_function(field, format_string, sz, cast) \ |
| 1235 | static ssize_t \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1236 | show_fc_host_##field (struct device *dev, \ |
| 1237 | struct device_attribute *attr, char *buf) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1238 | { \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1239 | struct Scsi_Host *shost = transport_class_to_shost(dev); \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1240 | struct fc_internal *i = to_fc_internal(shost->transportt); \ |
| 1241 | if (i->f->get_host_##field) \ |
| 1242 | i->f->get_host_##field(shost); \ |
| 1243 | return snprintf(buf, sz, format_string, cast fc_host_##field(shost)); \ |
| 1244 | } |
| 1245 | |
| 1246 | #define fc_host_store_function(field) \ |
| 1247 | static ssize_t \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1248 | store_fc_host_##field(struct device *dev, \ |
| 1249 | struct device_attribute *attr, \ |
| 1250 | const char *buf, size_t count) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1251 | { \ |
| 1252 | int val; \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1253 | struct Scsi_Host *shost = transport_class_to_shost(dev); \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1254 | struct fc_internal *i = to_fc_internal(shost->transportt); \ |
James Smart | 0f29b96 | 2006-08-18 17:33:29 -0400 | [diff] [blame] | 1255 | char *cp; \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1256 | \ |
James Smart | 0f29b96 | 2006-08-18 17:33:29 -0400 | [diff] [blame] | 1257 | val = simple_strtoul(buf, &cp, 0); \ |
| 1258 | if (*cp && (*cp != '\n')) \ |
| 1259 | return -EINVAL; \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1260 | i->f->set_host_##field(shost, val); \ |
| 1261 | return count; \ |
| 1262 | } |
| 1263 | |
James Smart | b8d0821 | 2006-08-17 08:00:43 -0400 | [diff] [blame] | 1264 | #define fc_host_store_str_function(field, slen) \ |
| 1265 | static ssize_t \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1266 | store_fc_host_##field(struct device *dev, \ |
| 1267 | struct device_attribute *attr, \ |
| 1268 | const char *buf, size_t count) \ |
James Smart | b8d0821 | 2006-08-17 08:00:43 -0400 | [diff] [blame] | 1269 | { \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1270 | struct Scsi_Host *shost = transport_class_to_shost(dev); \ |
James Smart | b8d0821 | 2006-08-17 08:00:43 -0400 | [diff] [blame] | 1271 | struct fc_internal *i = to_fc_internal(shost->transportt); \ |
| 1272 | unsigned int cnt=count; \ |
| 1273 | \ |
| 1274 | /* count may include a LF at end of string */ \ |
| 1275 | if (buf[cnt-1] == '\n') \ |
| 1276 | cnt--; \ |
| 1277 | if (cnt > ((slen) - 1)) \ |
| 1278 | return -EINVAL; \ |
| 1279 | memcpy(fc_host_##field(shost), buf, cnt); \ |
| 1280 | i->f->set_host_##field(shost); \ |
| 1281 | return count; \ |
| 1282 | } |
| 1283 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1284 | #define fc_host_rd_attr(field, format_string, sz) \ |
| 1285 | fc_host_show_function(field, format_string, sz, ) \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1286 | static FC_DEVICE_ATTR(host, field, S_IRUGO, \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1287 | show_fc_host_##field, NULL) |
| 1288 | |
| 1289 | #define fc_host_rd_attr_cast(field, format_string, sz, cast) \ |
| 1290 | fc_host_show_function(field, format_string, sz, (cast)) \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1291 | static FC_DEVICE_ATTR(host, field, S_IRUGO, \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1292 | show_fc_host_##field, NULL) |
| 1293 | |
| 1294 | #define fc_host_rw_attr(field, format_string, sz) \ |
| 1295 | fc_host_show_function(field, format_string, sz, ) \ |
| 1296 | fc_host_store_function(field) \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1297 | static FC_DEVICE_ATTR(host, field, S_IRUGO | S_IWUSR, \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1298 | show_fc_host_##field, \ |
| 1299 | store_fc_host_##field) |
| 1300 | |
| 1301 | #define fc_host_rd_enum_attr(title, maxlen) \ |
| 1302 | static ssize_t \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1303 | show_fc_host_##title (struct device *dev, \ |
| 1304 | struct device_attribute *attr, char *buf) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1305 | { \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1306 | struct Scsi_Host *shost = transport_class_to_shost(dev); \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1307 | struct fc_internal *i = to_fc_internal(shost->transportt); \ |
| 1308 | const char *name; \ |
| 1309 | if (i->f->get_host_##title) \ |
| 1310 | i->f->get_host_##title(shost); \ |
| 1311 | name = get_fc_##title##_name(fc_host_##title(shost)); \ |
| 1312 | if (!name) \ |
| 1313 | return -EINVAL; \ |
| 1314 | return snprintf(buf, maxlen, "%s\n", name); \ |
| 1315 | } \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1316 | static FC_DEVICE_ATTR(host, title, S_IRUGO, show_fc_host_##title, NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1317 | |
| 1318 | #define SETUP_HOST_ATTRIBUTE_RD(field) \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1319 | i->private_host_attrs[count] = device_attr_host_##field; \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1320 | i->private_host_attrs[count].attr.mode = S_IRUGO; \ |
| 1321 | i->private_host_attrs[count].store = NULL; \ |
| 1322 | i->host_attrs[count] = &i->private_host_attrs[count]; \ |
| 1323 | if (i->f->show_host_##field) \ |
| 1324 | count++ |
| 1325 | |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 1326 | #define SETUP_HOST_ATTRIBUTE_RD_NS(field) \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1327 | i->private_host_attrs[count] = device_attr_host_##field; \ |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 1328 | i->private_host_attrs[count].attr.mode = S_IRUGO; \ |
| 1329 | i->private_host_attrs[count].store = NULL; \ |
| 1330 | i->host_attrs[count] = &i->private_host_attrs[count]; \ |
| 1331 | count++ |
| 1332 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1333 | #define SETUP_HOST_ATTRIBUTE_RW(field) \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1334 | i->private_host_attrs[count] = device_attr_host_##field; \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1335 | if (!i->f->set_host_##field) { \ |
| 1336 | i->private_host_attrs[count].attr.mode = S_IRUGO; \ |
| 1337 | i->private_host_attrs[count].store = NULL; \ |
| 1338 | } \ |
| 1339 | i->host_attrs[count] = &i->private_host_attrs[count]; \ |
| 1340 | if (i->f->show_host_##field) \ |
| 1341 | count++ |
| 1342 | |
| 1343 | |
| 1344 | #define fc_private_host_show_function(field, format_string, sz, cast) \ |
| 1345 | static ssize_t \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1346 | show_fc_host_##field (struct device *dev, \ |
| 1347 | struct device_attribute *attr, char *buf) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1348 | { \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1349 | struct Scsi_Host *shost = transport_class_to_shost(dev); \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1350 | return snprintf(buf, sz, format_string, cast fc_host_##field(shost)); \ |
| 1351 | } |
| 1352 | |
| 1353 | #define fc_private_host_rd_attr(field, format_string, sz) \ |
| 1354 | fc_private_host_show_function(field, format_string, sz, ) \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1355 | static FC_DEVICE_ATTR(host, field, S_IRUGO, \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1356 | show_fc_host_##field, NULL) |
| 1357 | |
| 1358 | #define fc_private_host_rd_attr_cast(field, format_string, sz, cast) \ |
| 1359 | fc_private_host_show_function(field, format_string, sz, (cast)) \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1360 | static FC_DEVICE_ATTR(host, field, S_IRUGO, \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1361 | show_fc_host_##field, NULL) |
| 1362 | |
| 1363 | #define SETUP_PRIVATE_HOST_ATTRIBUTE_RD(field) \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1364 | i->private_host_attrs[count] = device_attr_host_##field; \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1365 | i->private_host_attrs[count].attr.mode = S_IRUGO; \ |
| 1366 | i->private_host_attrs[count].store = NULL; \ |
| 1367 | i->host_attrs[count] = &i->private_host_attrs[count]; \ |
| 1368 | count++ |
| 1369 | |
| 1370 | #define SETUP_PRIVATE_HOST_ATTRIBUTE_RW(field) \ |
Andrew Vasquez | 91ca7b0 | 2005-10-27 16:03:37 -0700 | [diff] [blame] | 1371 | { \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1372 | i->private_host_attrs[count] = device_attr_host_##field; \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1373 | i->host_attrs[count] = &i->private_host_attrs[count]; \ |
Andrew Vasquez | 91ca7b0 | 2005-10-27 16:03:37 -0700 | [diff] [blame] | 1374 | count++; \ |
| 1375 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1376 | |
| 1377 | |
| 1378 | /* Fixed Host Attributes */ |
| 1379 | |
| 1380 | static ssize_t |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1381 | show_fc_host_supported_classes (struct device *dev, |
| 1382 | struct device_attribute *attr, char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1383 | { |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1384 | struct Scsi_Host *shost = transport_class_to_shost(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1385 | |
| 1386 | if (fc_host_supported_classes(shost) == FC_COS_UNSPECIFIED) |
| 1387 | return snprintf(buf, 20, "unspecified\n"); |
| 1388 | |
| 1389 | return get_fc_cos_names(fc_host_supported_classes(shost), buf); |
| 1390 | } |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1391 | static FC_DEVICE_ATTR(host, supported_classes, S_IRUGO, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1392 | show_fc_host_supported_classes, NULL); |
| 1393 | |
| 1394 | static ssize_t |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1395 | show_fc_host_supported_fc4s (struct device *dev, |
| 1396 | struct device_attribute *attr, char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1397 | { |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1398 | struct Scsi_Host *shost = transport_class_to_shost(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1399 | return (ssize_t)show_fc_fc4s(buf, fc_host_supported_fc4s(shost)); |
| 1400 | } |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1401 | static FC_DEVICE_ATTR(host, supported_fc4s, S_IRUGO, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1402 | show_fc_host_supported_fc4s, NULL); |
| 1403 | |
| 1404 | static ssize_t |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1405 | show_fc_host_supported_speeds (struct device *dev, |
| 1406 | struct device_attribute *attr, char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1407 | { |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1408 | struct Scsi_Host *shost = transport_class_to_shost(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1409 | |
| 1410 | if (fc_host_supported_speeds(shost) == FC_PORTSPEED_UNKNOWN) |
| 1411 | return snprintf(buf, 20, "unknown\n"); |
| 1412 | |
| 1413 | return get_fc_port_speed_names(fc_host_supported_speeds(shost), buf); |
| 1414 | } |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1415 | static FC_DEVICE_ATTR(host, supported_speeds, S_IRUGO, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1416 | show_fc_host_supported_speeds, NULL); |
| 1417 | |
| 1418 | |
| 1419 | fc_private_host_rd_attr_cast(node_name, "0x%llx\n", 20, unsigned long long); |
| 1420 | fc_private_host_rd_attr_cast(port_name, "0x%llx\n", 20, unsigned long long); |
Andreas Herrmann | 6b7281d | 2006-01-13 02:16:54 +0100 | [diff] [blame] | 1421 | fc_private_host_rd_attr_cast(permanent_port_name, "0x%llx\n", 20, |
| 1422 | unsigned long long); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1423 | fc_private_host_rd_attr(maxframe_size, "%u bytes\n", 20); |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 1424 | fc_private_host_rd_attr(max_npiv_vports, "%u\n", 20); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1425 | fc_private_host_rd_attr(serial_number, "%s\n", (FC_SERIAL_NUMBER_SIZE +1)); |
| 1426 | |
| 1427 | |
| 1428 | /* Dynamic Host Attributes */ |
| 1429 | |
| 1430 | static ssize_t |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1431 | show_fc_host_active_fc4s (struct device *dev, |
| 1432 | struct device_attribute *attr, char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1433 | { |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1434 | struct Scsi_Host *shost = transport_class_to_shost(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1435 | struct fc_internal *i = to_fc_internal(shost->transportt); |
| 1436 | |
| 1437 | if (i->f->get_host_active_fc4s) |
| 1438 | i->f->get_host_active_fc4s(shost); |
| 1439 | |
| 1440 | return (ssize_t)show_fc_fc4s(buf, fc_host_active_fc4s(shost)); |
| 1441 | } |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1442 | static FC_DEVICE_ATTR(host, active_fc4s, S_IRUGO, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1443 | show_fc_host_active_fc4s, NULL); |
| 1444 | |
| 1445 | static ssize_t |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1446 | show_fc_host_speed (struct device *dev, |
| 1447 | struct device_attribute *attr, char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1448 | { |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1449 | struct Scsi_Host *shost = transport_class_to_shost(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1450 | struct fc_internal *i = to_fc_internal(shost->transportt); |
| 1451 | |
| 1452 | if (i->f->get_host_speed) |
| 1453 | i->f->get_host_speed(shost); |
| 1454 | |
| 1455 | if (fc_host_speed(shost) == FC_PORTSPEED_UNKNOWN) |
| 1456 | return snprintf(buf, 20, "unknown\n"); |
| 1457 | |
| 1458 | return get_fc_port_speed_names(fc_host_speed(shost), buf); |
| 1459 | } |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1460 | static FC_DEVICE_ATTR(host, speed, S_IRUGO, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1461 | show_fc_host_speed, NULL); |
| 1462 | |
| 1463 | |
| 1464 | fc_host_rd_attr(port_id, "0x%06x\n", 20); |
| 1465 | fc_host_rd_enum_attr(port_type, FC_PORTTYPE_MAX_NAMELEN); |
| 1466 | fc_host_rd_enum_attr(port_state, FC_PORTSTATE_MAX_NAMELEN); |
| 1467 | fc_host_rd_attr_cast(fabric_name, "0x%llx\n", 20, unsigned long long); |
James Smart | 016131b | 2006-08-14 08:20:25 -0400 | [diff] [blame] | 1468 | fc_host_rd_attr(symbolic_name, "%s\n", FC_SYMBOLIC_NAME_SIZE + 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1469 | |
James Smart | b8d0821 | 2006-08-17 08:00:43 -0400 | [diff] [blame] | 1470 | fc_private_host_show_function(system_hostname, "%s\n", |
| 1471 | FC_SYMBOLIC_NAME_SIZE + 1, ) |
| 1472 | fc_host_store_str_function(system_hostname, FC_SYMBOLIC_NAME_SIZE) |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1473 | static FC_DEVICE_ATTR(host, system_hostname, S_IRUGO | S_IWUSR, |
James Smart | b8d0821 | 2006-08-17 08:00:43 -0400 | [diff] [blame] | 1474 | show_fc_host_system_hostname, store_fc_host_system_hostname); |
| 1475 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1476 | |
| 1477 | /* Private Host Attributes */ |
| 1478 | |
| 1479 | static ssize_t |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1480 | show_fc_private_host_tgtid_bind_type(struct device *dev, |
| 1481 | struct device_attribute *attr, char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1482 | { |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1483 | struct Scsi_Host *shost = transport_class_to_shost(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1484 | const char *name; |
| 1485 | |
| 1486 | name = get_fc_tgtid_bind_type_name(fc_host_tgtid_bind_type(shost)); |
| 1487 | if (!name) |
| 1488 | return -EINVAL; |
| 1489 | return snprintf(buf, FC_BINDTYPE_MAX_NAMELEN, "%s\n", name); |
| 1490 | } |
| 1491 | |
James.Smart@Emulex.Com | d16794f6a | 2005-10-05 13:50:08 -0400 | [diff] [blame] | 1492 | #define get_list_head_entry(pos, head, member) \ |
| 1493 | pos = list_entry((head)->next, typeof(*pos), member) |
| 1494 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1495 | static ssize_t |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1496 | store_fc_private_host_tgtid_bind_type(struct device *dev, |
| 1497 | struct device_attribute *attr, const char *buf, size_t count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1498 | { |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1499 | struct Scsi_Host *shost = transport_class_to_shost(dev); |
James.Smart@Emulex.Com | d16794f6a | 2005-10-05 13:50:08 -0400 | [diff] [blame] | 1500 | struct fc_rport *rport; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1501 | enum fc_tgtid_binding_type val; |
| 1502 | unsigned long flags; |
| 1503 | |
| 1504 | if (get_fc_tgtid_bind_type_match(buf, &val)) |
| 1505 | return -EINVAL; |
| 1506 | |
| 1507 | /* if changing bind type, purge all unused consistent bindings */ |
| 1508 | if (val != fc_host_tgtid_bind_type(shost)) { |
| 1509 | spin_lock_irqsave(shost->host_lock, flags); |
James.Smart@Emulex.Com | d16794f6a | 2005-10-05 13:50:08 -0400 | [diff] [blame] | 1510 | while (!list_empty(&fc_host_rport_bindings(shost))) { |
| 1511 | get_list_head_entry(rport, |
| 1512 | &fc_host_rport_bindings(shost), peers); |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 1513 | list_del(&rport->peers); |
| 1514 | rport->port_state = FC_PORTSTATE_DELETED; |
| 1515 | fc_queue_work(shost, &rport->rport_delete_work); |
James.Smart@Emulex.Com | d16794f6a | 2005-10-05 13:50:08 -0400 | [diff] [blame] | 1516 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1517 | spin_unlock_irqrestore(shost->host_lock, flags); |
| 1518 | } |
| 1519 | |
| 1520 | fc_host_tgtid_bind_type(shost) = val; |
| 1521 | return count; |
| 1522 | } |
| 1523 | |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1524 | static FC_DEVICE_ATTR(host, tgtid_bind_type, S_IRUGO | S_IWUSR, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1525 | show_fc_private_host_tgtid_bind_type, |
| 1526 | store_fc_private_host_tgtid_bind_type); |
| 1527 | |
Andrew Vasquez | 91ca7b0 | 2005-10-27 16:03:37 -0700 | [diff] [blame] | 1528 | static ssize_t |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1529 | store_fc_private_host_issue_lip(struct device *dev, |
| 1530 | struct device_attribute *attr, const char *buf, size_t count) |
Andrew Vasquez | 91ca7b0 | 2005-10-27 16:03:37 -0700 | [diff] [blame] | 1531 | { |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1532 | struct Scsi_Host *shost = transport_class_to_shost(dev); |
Andrew Vasquez | 91ca7b0 | 2005-10-27 16:03:37 -0700 | [diff] [blame] | 1533 | struct fc_internal *i = to_fc_internal(shost->transportt); |
| 1534 | int ret; |
| 1535 | |
| 1536 | /* ignore any data value written to the attribute */ |
| 1537 | if (i->f->issue_fc_host_lip) { |
| 1538 | ret = i->f->issue_fc_host_lip(shost); |
| 1539 | return ret ? ret: count; |
| 1540 | } |
| 1541 | |
| 1542 | return -ENOENT; |
| 1543 | } |
| 1544 | |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1545 | static FC_DEVICE_ATTR(host, issue_lip, S_IWUSR, NULL, |
Andrew Vasquez | 91ca7b0 | 2005-10-27 16:03:37 -0700 | [diff] [blame] | 1546 | store_fc_private_host_issue_lip); |
| 1547 | |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 1548 | fc_private_host_rd_attr(npiv_vports_inuse, "%u\n", 20); |
| 1549 | |
| 1550 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1551 | /* |
| 1552 | * Host Statistics Management |
| 1553 | */ |
| 1554 | |
| 1555 | /* Show a given an attribute in the statistics group */ |
| 1556 | static ssize_t |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1557 | fc_stat_show(const struct device *dev, char *buf, unsigned long offset) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1558 | { |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1559 | struct Scsi_Host *shost = transport_class_to_shost(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1560 | struct fc_internal *i = to_fc_internal(shost->transportt); |
| 1561 | struct fc_host_statistics *stats; |
| 1562 | ssize_t ret = -ENOENT; |
| 1563 | |
| 1564 | if (offset > sizeof(struct fc_host_statistics) || |
| 1565 | offset % sizeof(u64) != 0) |
| 1566 | WARN_ON(1); |
| 1567 | |
| 1568 | if (i->f->get_fc_host_stats) { |
| 1569 | stats = (i->f->get_fc_host_stats)(shost); |
| 1570 | if (stats) |
| 1571 | ret = snprintf(buf, 20, "0x%llx\n", |
| 1572 | (unsigned long long)*(u64 *)(((u8 *) stats) + offset)); |
| 1573 | } |
| 1574 | return ret; |
| 1575 | } |
| 1576 | |
| 1577 | |
| 1578 | /* generate a read-only statistics attribute */ |
| 1579 | #define fc_host_statistic(name) \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1580 | static ssize_t show_fcstat_##name(struct device *cd, \ |
| 1581 | struct device_attribute *attr, \ |
| 1582 | char *buf) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1583 | { \ |
| 1584 | return fc_stat_show(cd, buf, \ |
| 1585 | offsetof(struct fc_host_statistics, name)); \ |
| 1586 | } \ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1587 | static FC_DEVICE_ATTR(host, name, S_IRUGO, show_fcstat_##name, NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1588 | |
| 1589 | fc_host_statistic(seconds_since_last_reset); |
| 1590 | fc_host_statistic(tx_frames); |
| 1591 | fc_host_statistic(tx_words); |
| 1592 | fc_host_statistic(rx_frames); |
| 1593 | fc_host_statistic(rx_words); |
| 1594 | fc_host_statistic(lip_count); |
| 1595 | fc_host_statistic(nos_count); |
| 1596 | fc_host_statistic(error_frames); |
| 1597 | fc_host_statistic(dumped_frames); |
| 1598 | fc_host_statistic(link_failure_count); |
| 1599 | fc_host_statistic(loss_of_sync_count); |
| 1600 | fc_host_statistic(loss_of_signal_count); |
| 1601 | fc_host_statistic(prim_seq_protocol_err_count); |
| 1602 | fc_host_statistic(invalid_tx_word_count); |
| 1603 | fc_host_statistic(invalid_crc_count); |
| 1604 | fc_host_statistic(fcp_input_requests); |
| 1605 | fc_host_statistic(fcp_output_requests); |
| 1606 | fc_host_statistic(fcp_control_requests); |
| 1607 | fc_host_statistic(fcp_input_megabytes); |
| 1608 | fc_host_statistic(fcp_output_megabytes); |
| 1609 | |
| 1610 | static ssize_t |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1611 | fc_reset_statistics(struct device *dev, struct device_attribute *attr, |
| 1612 | const char *buf, size_t count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1613 | { |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1614 | struct Scsi_Host *shost = transport_class_to_shost(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1615 | struct fc_internal *i = to_fc_internal(shost->transportt); |
| 1616 | |
| 1617 | /* ignore any data value written to the attribute */ |
| 1618 | if (i->f->reset_fc_host_stats) { |
| 1619 | i->f->reset_fc_host_stats(shost); |
| 1620 | return count; |
| 1621 | } |
| 1622 | |
| 1623 | return -ENOENT; |
| 1624 | } |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1625 | static FC_DEVICE_ATTR(host, reset_statistics, S_IWUSR, NULL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1626 | fc_reset_statistics); |
| 1627 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1628 | static struct attribute *fc_statistics_attrs[] = { |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1629 | &device_attr_host_seconds_since_last_reset.attr, |
| 1630 | &device_attr_host_tx_frames.attr, |
| 1631 | &device_attr_host_tx_words.attr, |
| 1632 | &device_attr_host_rx_frames.attr, |
| 1633 | &device_attr_host_rx_words.attr, |
| 1634 | &device_attr_host_lip_count.attr, |
| 1635 | &device_attr_host_nos_count.attr, |
| 1636 | &device_attr_host_error_frames.attr, |
| 1637 | &device_attr_host_dumped_frames.attr, |
| 1638 | &device_attr_host_link_failure_count.attr, |
| 1639 | &device_attr_host_loss_of_sync_count.attr, |
| 1640 | &device_attr_host_loss_of_signal_count.attr, |
| 1641 | &device_attr_host_prim_seq_protocol_err_count.attr, |
| 1642 | &device_attr_host_invalid_tx_word_count.attr, |
| 1643 | &device_attr_host_invalid_crc_count.attr, |
| 1644 | &device_attr_host_fcp_input_requests.attr, |
| 1645 | &device_attr_host_fcp_output_requests.attr, |
| 1646 | &device_attr_host_fcp_control_requests.attr, |
| 1647 | &device_attr_host_fcp_input_megabytes.attr, |
| 1648 | &device_attr_host_fcp_output_megabytes.attr, |
| 1649 | &device_attr_host_reset_statistics.attr, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1650 | NULL |
| 1651 | }; |
| 1652 | |
| 1653 | static struct attribute_group fc_statistics_group = { |
| 1654 | .name = "statistics", |
| 1655 | .attrs = fc_statistics_attrs, |
| 1656 | }; |
| 1657 | |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 1658 | |
| 1659 | /* Host Vport Attributes */ |
| 1660 | |
| 1661 | static int |
| 1662 | fc_parse_wwn(const char *ns, u64 *nm) |
| 1663 | { |
| 1664 | unsigned int i, j; |
| 1665 | u8 wwn[8]; |
| 1666 | |
| 1667 | memset(wwn, 0, sizeof(wwn)); |
| 1668 | |
| 1669 | /* Validate and store the new name */ |
| 1670 | for (i=0, j=0; i < 16; i++) { |
| 1671 | if ((*ns >= 'a') && (*ns <= 'f')) |
| 1672 | j = ((j << 4) | ((*ns++ -'a') + 10)); |
| 1673 | else if ((*ns >= 'A') && (*ns <= 'F')) |
| 1674 | j = ((j << 4) | ((*ns++ -'A') + 10)); |
| 1675 | else if ((*ns >= '0') && (*ns <= '9')) |
| 1676 | j = ((j << 4) | (*ns++ -'0')); |
| 1677 | else |
| 1678 | return -EINVAL; |
| 1679 | if (i % 2) { |
| 1680 | wwn[i/2] = j & 0xff; |
| 1681 | j = 0; |
| 1682 | } |
| 1683 | } |
| 1684 | |
| 1685 | *nm = wwn_to_u64(wwn); |
| 1686 | |
| 1687 | return 0; |
| 1688 | } |
| 1689 | |
| 1690 | |
| 1691 | /* |
| 1692 | * "Short-cut" sysfs variable to create a new vport on a FC Host. |
| 1693 | * Input is a string of the form "<WWPN>:<WWNN>". Other attributes |
| 1694 | * will default to a NPIV-based FCP_Initiator; The WWNs are specified |
| 1695 | * as hex characters, and may *not* contain any prefixes (e.g. 0x, x, etc) |
| 1696 | */ |
| 1697 | static ssize_t |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1698 | store_fc_host_vport_create(struct device *dev, struct device_attribute *attr, |
| 1699 | const char *buf, size_t count) |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 1700 | { |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1701 | struct Scsi_Host *shost = transport_class_to_shost(dev); |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 1702 | struct fc_vport_identifiers vid; |
| 1703 | struct fc_vport *vport; |
| 1704 | unsigned int cnt=count; |
| 1705 | int stat; |
| 1706 | |
| 1707 | memset(&vid, 0, sizeof(vid)); |
| 1708 | |
| 1709 | /* count may include a LF at end of string */ |
| 1710 | if (buf[cnt-1] == '\n') |
| 1711 | cnt--; |
| 1712 | |
| 1713 | /* validate we have enough characters for WWPN */ |
| 1714 | if ((cnt != (16+1+16)) || (buf[16] != ':')) |
| 1715 | return -EINVAL; |
| 1716 | |
| 1717 | stat = fc_parse_wwn(&buf[0], &vid.port_name); |
| 1718 | if (stat) |
| 1719 | return stat; |
| 1720 | |
| 1721 | stat = fc_parse_wwn(&buf[17], &vid.node_name); |
| 1722 | if (stat) |
| 1723 | return stat; |
| 1724 | |
| 1725 | vid.roles = FC_PORT_ROLE_FCP_INITIATOR; |
| 1726 | vid.vport_type = FC_PORTTYPE_NPIV; |
| 1727 | /* vid.symbolic_name is already zero/NULL's */ |
| 1728 | vid.disable = false; /* always enabled */ |
| 1729 | |
| 1730 | /* we only allow support on Channel 0 !!! */ |
Andrew Vasquez | a30c3f6 | 2008-07-18 08:32:52 -0700 | [diff] [blame] | 1731 | stat = fc_vport_setup(shost, 0, &shost->shost_gendev, &vid, &vport); |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 1732 | return stat ? stat : count; |
| 1733 | } |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1734 | static FC_DEVICE_ATTR(host, vport_create, S_IWUSR, NULL, |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 1735 | store_fc_host_vport_create); |
| 1736 | |
| 1737 | |
| 1738 | /* |
| 1739 | * "Short-cut" sysfs variable to delete a vport on a FC Host. |
| 1740 | * Vport is identified by a string containing "<WWPN>:<WWNN>". |
| 1741 | * The WWNs are specified as hex characters, and may *not* contain |
| 1742 | * any prefixes (e.g. 0x, x, etc) |
| 1743 | */ |
| 1744 | static ssize_t |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1745 | store_fc_host_vport_delete(struct device *dev, struct device_attribute *attr, |
| 1746 | const char *buf, size_t count) |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 1747 | { |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1748 | struct Scsi_Host *shost = transport_class_to_shost(dev); |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 1749 | struct fc_host_attrs *fc_host = shost_to_fc_host(shost); |
| 1750 | struct fc_vport *vport; |
| 1751 | u64 wwpn, wwnn; |
| 1752 | unsigned long flags; |
| 1753 | unsigned int cnt=count; |
| 1754 | int stat, match; |
| 1755 | |
| 1756 | /* count may include a LF at end of string */ |
| 1757 | if (buf[cnt-1] == '\n') |
| 1758 | cnt--; |
| 1759 | |
| 1760 | /* validate we have enough characters for WWPN */ |
| 1761 | if ((cnt != (16+1+16)) || (buf[16] != ':')) |
| 1762 | return -EINVAL; |
| 1763 | |
| 1764 | stat = fc_parse_wwn(&buf[0], &wwpn); |
| 1765 | if (stat) |
| 1766 | return stat; |
| 1767 | |
| 1768 | stat = fc_parse_wwn(&buf[17], &wwnn); |
| 1769 | if (stat) |
| 1770 | return stat; |
| 1771 | |
| 1772 | spin_lock_irqsave(shost->host_lock, flags); |
| 1773 | match = 0; |
| 1774 | /* we only allow support on Channel 0 !!! */ |
| 1775 | list_for_each_entry(vport, &fc_host->vports, peers) { |
| 1776 | if ((vport->channel == 0) && |
| 1777 | (vport->port_name == wwpn) && (vport->node_name == wwnn)) { |
| 1778 | match = 1; |
| 1779 | break; |
| 1780 | } |
| 1781 | } |
| 1782 | spin_unlock_irqrestore(shost->host_lock, flags); |
| 1783 | |
| 1784 | if (!match) |
| 1785 | return -ENODEV; |
| 1786 | |
| 1787 | stat = fc_vport_terminate(vport); |
| 1788 | return stat ? stat : count; |
| 1789 | } |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1790 | static FC_DEVICE_ATTR(host, vport_delete, S_IWUSR, NULL, |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 1791 | store_fc_host_vport_delete); |
| 1792 | |
| 1793 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1794 | static int fc_host_match(struct attribute_container *cont, |
| 1795 | struct device *dev) |
| 1796 | { |
| 1797 | struct Scsi_Host *shost; |
| 1798 | struct fc_internal *i; |
| 1799 | |
| 1800 | if (!scsi_is_host_device(dev)) |
| 1801 | return 0; |
| 1802 | |
| 1803 | shost = dev_to_shost(dev); |
| 1804 | if (!shost->transportt || shost->transportt->host_attrs.ac.class |
| 1805 | != &fc_host_class.class) |
| 1806 | return 0; |
| 1807 | |
| 1808 | i = to_fc_internal(shost->transportt); |
| 1809 | |
| 1810 | return &i->t.host_attrs.ac == cont; |
| 1811 | } |
| 1812 | |
| 1813 | static int fc_target_match(struct attribute_container *cont, |
| 1814 | struct device *dev) |
| 1815 | { |
| 1816 | struct Scsi_Host *shost; |
| 1817 | struct fc_internal *i; |
| 1818 | |
| 1819 | if (!scsi_is_target_device(dev)) |
| 1820 | return 0; |
| 1821 | |
| 1822 | shost = dev_to_shost(dev->parent); |
| 1823 | if (!shost->transportt || shost->transportt->host_attrs.ac.class |
| 1824 | != &fc_host_class.class) |
| 1825 | return 0; |
| 1826 | |
| 1827 | i = to_fc_internal(shost->transportt); |
| 1828 | |
| 1829 | return &i->t.target_attrs.ac == cont; |
| 1830 | } |
| 1831 | |
| 1832 | static void fc_rport_dev_release(struct device *dev) |
| 1833 | { |
| 1834 | struct fc_rport *rport = dev_to_rport(dev); |
| 1835 | put_device(dev->parent); |
| 1836 | kfree(rport); |
| 1837 | } |
| 1838 | |
| 1839 | int scsi_is_fc_rport(const struct device *dev) |
| 1840 | { |
| 1841 | return dev->release == fc_rport_dev_release; |
| 1842 | } |
| 1843 | EXPORT_SYMBOL(scsi_is_fc_rport); |
| 1844 | |
| 1845 | static int fc_rport_match(struct attribute_container *cont, |
| 1846 | struct device *dev) |
| 1847 | { |
| 1848 | struct Scsi_Host *shost; |
| 1849 | struct fc_internal *i; |
| 1850 | |
| 1851 | if (!scsi_is_fc_rport(dev)) |
| 1852 | return 0; |
| 1853 | |
| 1854 | shost = dev_to_shost(dev->parent); |
| 1855 | if (!shost->transportt || shost->transportt->host_attrs.ac.class |
| 1856 | != &fc_host_class.class) |
| 1857 | return 0; |
| 1858 | |
| 1859 | i = to_fc_internal(shost->transportt); |
| 1860 | |
| 1861 | return &i->rport_attr_cont.ac == cont; |
| 1862 | } |
| 1863 | |
James.Smart@Emulex.Com | 5c44cd2 | 2005-06-10 22:24:30 -0400 | [diff] [blame] | 1864 | |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 1865 | static void fc_vport_dev_release(struct device *dev) |
| 1866 | { |
| 1867 | struct fc_vport *vport = dev_to_vport(dev); |
| 1868 | put_device(dev->parent); /* release kobj parent */ |
| 1869 | kfree(vport); |
| 1870 | } |
| 1871 | |
| 1872 | int scsi_is_fc_vport(const struct device *dev) |
| 1873 | { |
| 1874 | return dev->release == fc_vport_dev_release; |
| 1875 | } |
| 1876 | EXPORT_SYMBOL(scsi_is_fc_vport); |
| 1877 | |
| 1878 | static int fc_vport_match(struct attribute_container *cont, |
| 1879 | struct device *dev) |
| 1880 | { |
| 1881 | struct fc_vport *vport; |
| 1882 | struct Scsi_Host *shost; |
| 1883 | struct fc_internal *i; |
| 1884 | |
| 1885 | if (!scsi_is_fc_vport(dev)) |
| 1886 | return 0; |
| 1887 | vport = dev_to_vport(dev); |
| 1888 | |
| 1889 | shost = vport_to_shost(vport); |
| 1890 | if (!shost->transportt || shost->transportt->host_attrs.ac.class |
| 1891 | != &fc_host_class.class) |
| 1892 | return 0; |
| 1893 | |
| 1894 | i = to_fc_internal(shost->transportt); |
| 1895 | return &i->vport_attr_cont.ac == cont; |
| 1896 | } |
| 1897 | |
| 1898 | |
James Smart | c829c39 | 2006-03-13 08:28:57 -0500 | [diff] [blame] | 1899 | /** |
| 1900 | * fc_timed_out - FC Transport I/O timeout intercept handler |
James Smart | c829c39 | 2006-03-13 08:28:57 -0500 | [diff] [blame] | 1901 | * @scmd: The SCSI command which timed out |
| 1902 | * |
| 1903 | * This routine protects against error handlers getting invoked while a |
| 1904 | * rport is in a blocked state, typically due to a temporarily loss of |
| 1905 | * connectivity. If the error handlers are allowed to proceed, requests |
| 1906 | * to abort i/o, reset the target, etc will likely fail as there is no way |
| 1907 | * to communicate with the device to perform the requested function. These |
| 1908 | * failures may result in the midlayer taking the device offline, requiring |
| 1909 | * manual intervention to restore operation. |
| 1910 | * |
| 1911 | * This routine, called whenever an i/o times out, validates the state of |
| 1912 | * the underlying rport. If the rport is blocked, it returns |
| 1913 | * EH_RESET_TIMER, which will continue to reschedule the timeout. |
| 1914 | * Eventually, either the device will return, or devloss_tmo will fire, |
| 1915 | * and when the timeout then fires, it will be handled normally. |
| 1916 | * If the rport is not blocked, normal error handling continues. |
| 1917 | * |
| 1918 | * Notes: |
| 1919 | * This routine assumes no locks are held on entry. |
Rob Landley | eb44820 | 2007-11-03 13:30:39 -0500 | [diff] [blame] | 1920 | */ |
Jens Axboe | 242f9dc | 2008-09-14 05:55:09 -0700 | [diff] [blame] | 1921 | static enum blk_eh_timer_return |
James Smart | c829c39 | 2006-03-13 08:28:57 -0500 | [diff] [blame] | 1922 | fc_timed_out(struct scsi_cmnd *scmd) |
| 1923 | { |
| 1924 | struct fc_rport *rport = starget_to_rport(scsi_target(scmd->device)); |
| 1925 | |
| 1926 | if (rport->port_state == FC_PORTSTATE_BLOCKED) |
Jens Axboe | 242f9dc | 2008-09-14 05:55:09 -0700 | [diff] [blame] | 1927 | return BLK_EH_RESET_TIMER; |
James Smart | c829c39 | 2006-03-13 08:28:57 -0500 | [diff] [blame] | 1928 | |
Jens Axboe | 242f9dc | 2008-09-14 05:55:09 -0700 | [diff] [blame] | 1929 | return BLK_EH_NOT_HANDLED; |
James Smart | c829c39 | 2006-03-13 08:28:57 -0500 | [diff] [blame] | 1930 | } |
| 1931 | |
James.Smart@Emulex.Com | 5c44cd2 | 2005-06-10 22:24:30 -0400 | [diff] [blame] | 1932 | /* |
James Smart | bda2325 | 2008-04-24 12:12:46 -0400 | [diff] [blame] | 1933 | * Called by fc_user_scan to locate an rport on the shost that |
| 1934 | * matches the channel and target id, and invoke scsi_scan_target() |
| 1935 | * on the rport. |
James.Smart@Emulex.Com | 5c44cd2 | 2005-06-10 22:24:30 -0400 | [diff] [blame] | 1936 | */ |
James Smart | bda2325 | 2008-04-24 12:12:46 -0400 | [diff] [blame] | 1937 | static void |
| 1938 | fc_user_scan_tgt(struct Scsi_Host *shost, uint channel, uint id, uint lun) |
James.Smart@Emulex.Com | 5c44cd2 | 2005-06-10 22:24:30 -0400 | [diff] [blame] | 1939 | { |
| 1940 | struct fc_rport *rport; |
James Smart | bda2325 | 2008-04-24 12:12:46 -0400 | [diff] [blame] | 1941 | unsigned long flags; |
| 1942 | |
| 1943 | spin_lock_irqsave(shost->host_lock, flags); |
James.Smart@Emulex.Com | 5c44cd2 | 2005-06-10 22:24:30 -0400 | [diff] [blame] | 1944 | |
Christoph Hellwig | e02f3f5 | 2006-01-13 19:04:00 +0100 | [diff] [blame] | 1945 | list_for_each_entry(rport, &fc_host_rports(shost), peers) { |
| 1946 | if (rport->scsi_target_id == -1) |
| 1947 | continue; |
James.Smart@Emulex.Com | 5c44cd2 | 2005-06-10 22:24:30 -0400 | [diff] [blame] | 1948 | |
Hannes Reinecke | 0d2fcd9 | 2007-06-14 15:16:45 +0200 | [diff] [blame] | 1949 | if (rport->port_state != FC_PORTSTATE_ONLINE) |
| 1950 | continue; |
| 1951 | |
James Smart | bda2325 | 2008-04-24 12:12:46 -0400 | [diff] [blame] | 1952 | if ((channel == rport->channel) && |
| 1953 | (id == rport->scsi_target_id)) { |
| 1954 | spin_unlock_irqrestore(shost->host_lock, flags); |
| 1955 | scsi_scan_target(&rport->dev, channel, id, lun, 1); |
| 1956 | return; |
Christoph Hellwig | e02f3f5 | 2006-01-13 19:04:00 +0100 | [diff] [blame] | 1957 | } |
| 1958 | } |
| 1959 | |
James Smart | bda2325 | 2008-04-24 12:12:46 -0400 | [diff] [blame] | 1960 | spin_unlock_irqrestore(shost->host_lock, flags); |
| 1961 | } |
| 1962 | |
| 1963 | /* |
| 1964 | * Called via sysfs scan routines. Necessary, as the FC transport |
| 1965 | * wants to place all target objects below the rport object. So this |
| 1966 | * routine must invoke the scsi_scan_target() routine with the rport |
| 1967 | * object as the parent. |
| 1968 | */ |
| 1969 | static int |
| 1970 | fc_user_scan(struct Scsi_Host *shost, uint channel, uint id, uint lun) |
| 1971 | { |
| 1972 | uint chlo, chhi; |
| 1973 | uint tgtlo, tgthi; |
| 1974 | |
| 1975 | if (((channel != SCAN_WILD_CARD) && (channel > shost->max_channel)) || |
| 1976 | ((id != SCAN_WILD_CARD) && (id >= shost->max_id)) || |
| 1977 | ((lun != SCAN_WILD_CARD) && (lun > shost->max_lun))) |
| 1978 | return -EINVAL; |
| 1979 | |
| 1980 | if (channel == SCAN_WILD_CARD) { |
| 1981 | chlo = 0; |
| 1982 | chhi = shost->max_channel + 1; |
| 1983 | } else { |
| 1984 | chlo = channel; |
| 1985 | chhi = channel + 1; |
| 1986 | } |
| 1987 | |
| 1988 | if (id == SCAN_WILD_CARD) { |
| 1989 | tgtlo = 0; |
| 1990 | tgthi = shost->max_id; |
| 1991 | } else { |
| 1992 | tgtlo = id; |
| 1993 | tgthi = id + 1; |
| 1994 | } |
| 1995 | |
| 1996 | for ( ; chlo < chhi; chlo++) |
| 1997 | for ( ; tgtlo < tgthi; tgtlo++) |
| 1998 | fc_user_scan_tgt(shost, chlo, tgtlo, lun); |
| 1999 | |
Christoph Hellwig | e02f3f5 | 2006-01-13 19:04:00 +0100 | [diff] [blame] | 2000 | return 0; |
James.Smart@Emulex.Com | 5c44cd2 | 2005-06-10 22:24:30 -0400 | [diff] [blame] | 2001 | } |
| 2002 | |
FUJITA Tomonori | 7525236 | 2007-09-01 02:02:27 +0900 | [diff] [blame] | 2003 | static int fc_tsk_mgmt_response(struct Scsi_Host *shost, u64 nexus, u64 tm_id, |
| 2004 | int result) |
| 2005 | { |
| 2006 | struct fc_internal *i = to_fc_internal(shost->transportt); |
| 2007 | return i->f->tsk_mgmt_response(shost, nexus, tm_id, result); |
| 2008 | } |
| 2009 | |
| 2010 | static int fc_it_nexus_response(struct Scsi_Host *shost, u64 nexus, int result) |
| 2011 | { |
| 2012 | struct fc_internal *i = to_fc_internal(shost->transportt); |
| 2013 | return i->f->it_nexus_response(shost, nexus, result); |
| 2014 | } |
| 2015 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2016 | struct scsi_transport_template * |
| 2017 | fc_attach_transport(struct fc_function_template *ft) |
| 2018 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2019 | int count; |
Jes Sorensen | 24669f75 | 2006-01-16 10:31:18 -0500 | [diff] [blame] | 2020 | struct fc_internal *i = kzalloc(sizeof(struct fc_internal), |
| 2021 | GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2022 | |
| 2023 | if (unlikely(!i)) |
| 2024 | return NULL; |
| 2025 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2026 | i->t.target_attrs.ac.attrs = &i->starget_attrs[0]; |
| 2027 | i->t.target_attrs.ac.class = &fc_transport_class.class; |
| 2028 | i->t.target_attrs.ac.match = fc_target_match; |
| 2029 | i->t.target_size = sizeof(struct fc_starget_attrs); |
| 2030 | transport_container_register(&i->t.target_attrs); |
| 2031 | |
| 2032 | i->t.host_attrs.ac.attrs = &i->host_attrs[0]; |
| 2033 | i->t.host_attrs.ac.class = &fc_host_class.class; |
| 2034 | i->t.host_attrs.ac.match = fc_host_match; |
| 2035 | i->t.host_size = sizeof(struct fc_host_attrs); |
| 2036 | if (ft->get_fc_host_stats) |
| 2037 | i->t.host_attrs.statistics = &fc_statistics_group; |
| 2038 | transport_container_register(&i->t.host_attrs); |
| 2039 | |
| 2040 | i->rport_attr_cont.ac.attrs = &i->rport_attrs[0]; |
| 2041 | i->rport_attr_cont.ac.class = &fc_rport_class.class; |
| 2042 | i->rport_attr_cont.ac.match = fc_rport_match; |
| 2043 | transport_container_register(&i->rport_attr_cont); |
| 2044 | |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 2045 | i->vport_attr_cont.ac.attrs = &i->vport_attrs[0]; |
| 2046 | i->vport_attr_cont.ac.class = &fc_vport_class.class; |
| 2047 | i->vport_attr_cont.ac.match = fc_vport_match; |
| 2048 | transport_container_register(&i->vport_attr_cont); |
| 2049 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2050 | i->f = ft; |
| 2051 | |
| 2052 | /* Transport uses the shost workq for scsi scanning */ |
| 2053 | i->t.create_work_queue = 1; |
James.Smart@Emulex.Com | 5c44cd2 | 2005-06-10 22:24:30 -0400 | [diff] [blame] | 2054 | |
James Smart | c829c39 | 2006-03-13 08:28:57 -0500 | [diff] [blame] | 2055 | i->t.eh_timed_out = fc_timed_out; |
| 2056 | |
Christoph Hellwig | e02f3f5 | 2006-01-13 19:04:00 +0100 | [diff] [blame] | 2057 | i->t.user_scan = fc_user_scan; |
James Smart | 9ef3e4a | 2007-05-24 19:04:44 -0400 | [diff] [blame] | 2058 | |
FUJITA Tomonori | 7525236 | 2007-09-01 02:02:27 +0900 | [diff] [blame] | 2059 | /* target-mode drivers' functions */ |
| 2060 | i->t.tsk_mgmt_response = fc_tsk_mgmt_response; |
| 2061 | i->t.it_nexus_response = fc_it_nexus_response; |
| 2062 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2063 | /* |
| 2064 | * Setup SCSI Target Attributes. |
| 2065 | */ |
| 2066 | count = 0; |
| 2067 | SETUP_STARGET_ATTRIBUTE_RD(node_name); |
| 2068 | SETUP_STARGET_ATTRIBUTE_RD(port_name); |
| 2069 | SETUP_STARGET_ATTRIBUTE_RD(port_id); |
| 2070 | |
| 2071 | BUG_ON(count > FC_STARGET_NUM_ATTRS); |
| 2072 | |
| 2073 | i->starget_attrs[count] = NULL; |
| 2074 | |
| 2075 | |
| 2076 | /* |
| 2077 | * Setup SCSI Host Attributes. |
| 2078 | */ |
| 2079 | count=0; |
| 2080 | SETUP_HOST_ATTRIBUTE_RD(node_name); |
| 2081 | SETUP_HOST_ATTRIBUTE_RD(port_name); |
Andreas Herrmann | 6b7281d | 2006-01-13 02:16:54 +0100 | [diff] [blame] | 2082 | SETUP_HOST_ATTRIBUTE_RD(permanent_port_name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2083 | SETUP_HOST_ATTRIBUTE_RD(supported_classes); |
| 2084 | SETUP_HOST_ATTRIBUTE_RD(supported_fc4s); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2085 | SETUP_HOST_ATTRIBUTE_RD(supported_speeds); |
| 2086 | SETUP_HOST_ATTRIBUTE_RD(maxframe_size); |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 2087 | if (ft->vport_create) { |
| 2088 | SETUP_HOST_ATTRIBUTE_RD_NS(max_npiv_vports); |
| 2089 | SETUP_HOST_ATTRIBUTE_RD_NS(npiv_vports_inuse); |
| 2090 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2091 | SETUP_HOST_ATTRIBUTE_RD(serial_number); |
| 2092 | |
| 2093 | SETUP_HOST_ATTRIBUTE_RD(port_id); |
| 2094 | SETUP_HOST_ATTRIBUTE_RD(port_type); |
| 2095 | SETUP_HOST_ATTRIBUTE_RD(port_state); |
| 2096 | SETUP_HOST_ATTRIBUTE_RD(active_fc4s); |
| 2097 | SETUP_HOST_ATTRIBUTE_RD(speed); |
| 2098 | SETUP_HOST_ATTRIBUTE_RD(fabric_name); |
James Smart | 016131b | 2006-08-14 08:20:25 -0400 | [diff] [blame] | 2099 | SETUP_HOST_ATTRIBUTE_RD(symbolic_name); |
James Smart | b8d0821 | 2006-08-17 08:00:43 -0400 | [diff] [blame] | 2100 | SETUP_HOST_ATTRIBUTE_RW(system_hostname); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2101 | |
| 2102 | /* Transport-managed attributes */ |
| 2103 | SETUP_PRIVATE_HOST_ATTRIBUTE_RW(tgtid_bind_type); |
Andrew Vasquez | 91ca7b0 | 2005-10-27 16:03:37 -0700 | [diff] [blame] | 2104 | if (ft->issue_fc_host_lip) |
| 2105 | SETUP_PRIVATE_HOST_ATTRIBUTE_RW(issue_lip); |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 2106 | if (ft->vport_create) |
| 2107 | SETUP_PRIVATE_HOST_ATTRIBUTE_RW(vport_create); |
| 2108 | if (ft->vport_delete) |
| 2109 | SETUP_PRIVATE_HOST_ATTRIBUTE_RW(vport_delete); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2110 | |
| 2111 | BUG_ON(count > FC_HOST_NUM_ATTRS); |
| 2112 | |
| 2113 | i->host_attrs[count] = NULL; |
| 2114 | |
| 2115 | /* |
| 2116 | * Setup Remote Port Attributes. |
| 2117 | */ |
| 2118 | count=0; |
| 2119 | SETUP_RPORT_ATTRIBUTE_RD(maxframe_size); |
| 2120 | SETUP_RPORT_ATTRIBUTE_RD(supported_classes); |
| 2121 | SETUP_RPORT_ATTRIBUTE_RW(dev_loss_tmo); |
| 2122 | SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(node_name); |
| 2123 | SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(port_name); |
| 2124 | SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(port_id); |
| 2125 | SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(roles); |
| 2126 | SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(port_state); |
| 2127 | SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(scsi_target_id); |
Mike Christie | fff9d40 | 2008-08-19 18:45:23 -0500 | [diff] [blame] | 2128 | SETUP_PRIVATE_RPORT_ATTRIBUTE_RW(fast_io_fail_tmo); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2129 | |
| 2130 | BUG_ON(count > FC_RPORT_NUM_ATTRS); |
| 2131 | |
| 2132 | i->rport_attrs[count] = NULL; |
| 2133 | |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 2134 | /* |
| 2135 | * Setup Virtual Port Attributes. |
| 2136 | */ |
| 2137 | count=0; |
| 2138 | SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(vport_state); |
| 2139 | SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(vport_last_state); |
| 2140 | SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(node_name); |
| 2141 | SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(port_name); |
| 2142 | SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(roles); |
| 2143 | SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(vport_type); |
| 2144 | SETUP_VPORT_ATTRIBUTE_RW(symbolic_name); |
| 2145 | SETUP_VPORT_ATTRIBUTE_WR(vport_delete); |
| 2146 | SETUP_VPORT_ATTRIBUTE_WR(vport_disable); |
| 2147 | |
| 2148 | BUG_ON(count > FC_VPORT_NUM_ATTRS); |
| 2149 | |
| 2150 | i->vport_attrs[count] = NULL; |
| 2151 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2152 | return &i->t; |
| 2153 | } |
| 2154 | EXPORT_SYMBOL(fc_attach_transport); |
| 2155 | |
| 2156 | void fc_release_transport(struct scsi_transport_template *t) |
| 2157 | { |
| 2158 | struct fc_internal *i = to_fc_internal(t); |
| 2159 | |
| 2160 | transport_container_unregister(&i->t.target_attrs); |
| 2161 | transport_container_unregister(&i->t.host_attrs); |
| 2162 | transport_container_unregister(&i->rport_attr_cont); |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 2163 | transport_container_unregister(&i->vport_attr_cont); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2164 | |
| 2165 | kfree(i); |
| 2166 | } |
| 2167 | EXPORT_SYMBOL(fc_release_transport); |
| 2168 | |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2169 | /** |
| 2170 | * fc_queue_work - Queue work to the fc_host workqueue. |
| 2171 | * @shost: Pointer to Scsi_Host bound to fc_host. |
| 2172 | * @work: Work to queue for execution. |
| 2173 | * |
| 2174 | * Return value: |
James Smart | a0785ed | 2006-05-11 13:27:09 -0400 | [diff] [blame] | 2175 | * 1 - work queued for execution |
| 2176 | * 0 - work is already queued |
| 2177 | * -EINVAL - work queue doesn't exist |
Rob Landley | eb44820 | 2007-11-03 13:30:39 -0500 | [diff] [blame] | 2178 | */ |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2179 | static int |
| 2180 | fc_queue_work(struct Scsi_Host *shost, struct work_struct *work) |
| 2181 | { |
| 2182 | if (unlikely(!fc_host_work_q(shost))) { |
| 2183 | printk(KERN_ERR |
| 2184 | "ERROR: FC host '%s' attempted to queue work, " |
| 2185 | "when no workqueue created.\n", shost->hostt->name); |
| 2186 | dump_stack(); |
| 2187 | |
| 2188 | return -EINVAL; |
| 2189 | } |
| 2190 | |
| 2191 | return queue_work(fc_host_work_q(shost), work); |
| 2192 | } |
| 2193 | |
| 2194 | /** |
| 2195 | * fc_flush_work - Flush a fc_host's workqueue. |
| 2196 | * @shost: Pointer to Scsi_Host bound to fc_host. |
Rob Landley | eb44820 | 2007-11-03 13:30:39 -0500 | [diff] [blame] | 2197 | */ |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2198 | static void |
| 2199 | fc_flush_work(struct Scsi_Host *shost) |
| 2200 | { |
| 2201 | if (!fc_host_work_q(shost)) { |
| 2202 | printk(KERN_ERR |
| 2203 | "ERROR: FC host '%s' attempted to flush work, " |
| 2204 | "when no workqueue created.\n", shost->hostt->name); |
| 2205 | dump_stack(); |
| 2206 | return; |
| 2207 | } |
| 2208 | |
| 2209 | flush_workqueue(fc_host_work_q(shost)); |
| 2210 | } |
| 2211 | |
| 2212 | /** |
| 2213 | * fc_queue_devloss_work - Schedule work for the fc_host devloss workqueue. |
| 2214 | * @shost: Pointer to Scsi_Host bound to fc_host. |
| 2215 | * @work: Work to queue for execution. |
| 2216 | * @delay: jiffies to delay the work queuing |
| 2217 | * |
| 2218 | * Return value: |
James Smart | 0f29b96 | 2006-08-18 17:33:29 -0400 | [diff] [blame] | 2219 | * 1 on success / 0 already queued / < 0 for error |
Rob Landley | eb44820 | 2007-11-03 13:30:39 -0500 | [diff] [blame] | 2220 | */ |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2221 | static int |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 2222 | fc_queue_devloss_work(struct Scsi_Host *shost, struct delayed_work *work, |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2223 | unsigned long delay) |
| 2224 | { |
| 2225 | if (unlikely(!fc_host_devloss_work_q(shost))) { |
| 2226 | printk(KERN_ERR |
| 2227 | "ERROR: FC host '%s' attempted to queue work, " |
| 2228 | "when no workqueue created.\n", shost->hostt->name); |
| 2229 | dump_stack(); |
| 2230 | |
| 2231 | return -EINVAL; |
| 2232 | } |
| 2233 | |
| 2234 | return queue_delayed_work(fc_host_devloss_work_q(shost), work, delay); |
| 2235 | } |
| 2236 | |
| 2237 | /** |
| 2238 | * fc_flush_devloss - Flush a fc_host's devloss workqueue. |
| 2239 | * @shost: Pointer to Scsi_Host bound to fc_host. |
Rob Landley | eb44820 | 2007-11-03 13:30:39 -0500 | [diff] [blame] | 2240 | */ |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2241 | static void |
| 2242 | fc_flush_devloss(struct Scsi_Host *shost) |
| 2243 | { |
| 2244 | if (!fc_host_devloss_work_q(shost)) { |
| 2245 | printk(KERN_ERR |
| 2246 | "ERROR: FC host '%s' attempted to flush work, " |
| 2247 | "when no workqueue created.\n", shost->hostt->name); |
| 2248 | dump_stack(); |
| 2249 | return; |
| 2250 | } |
| 2251 | |
| 2252 | flush_workqueue(fc_host_devloss_work_q(shost)); |
| 2253 | } |
| 2254 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2255 | |
| 2256 | /** |
Rob Landley | eb44820 | 2007-11-03 13:30:39 -0500 | [diff] [blame] | 2257 | * fc_remove_host - called to terminate any fc_transport-related elements for a scsi host. |
| 2258 | * @shost: Which &Scsi_Host |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2259 | * |
| 2260 | * This routine is expected to be called immediately preceeding the |
| 2261 | * a driver's call to scsi_remove_host(). |
| 2262 | * |
| 2263 | * WARNING: A driver utilizing the fc_transport, which fails to call |
Rob Landley | eb44820 | 2007-11-03 13:30:39 -0500 | [diff] [blame] | 2264 | * this routine prior to scsi_remove_host(), will leave dangling |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2265 | * objects in /sys/class/fc_remote_ports. Access to any of these |
| 2266 | * objects can result in a system crash !!! |
| 2267 | * |
| 2268 | * Notes: |
| 2269 | * This routine assumes no locks are held on entry. |
Rob Landley | eb44820 | 2007-11-03 13:30:39 -0500 | [diff] [blame] | 2270 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2271 | void |
| 2272 | fc_remove_host(struct Scsi_Host *shost) |
| 2273 | { |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 2274 | struct fc_vport *vport = NULL, *next_vport = NULL; |
| 2275 | struct fc_rport *rport = NULL, *next_rport = NULL; |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2276 | struct workqueue_struct *work_q; |
| 2277 | struct fc_host_attrs *fc_host = shost_to_fc_host(shost); |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 2278 | unsigned long flags; |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 2279 | |
| 2280 | spin_lock_irqsave(shost->host_lock, flags); |
| 2281 | |
| 2282 | /* Remove any vports */ |
James Smart | 9ef3e4a | 2007-05-24 19:04:44 -0400 | [diff] [blame] | 2283 | list_for_each_entry_safe(vport, next_vport, &fc_host->vports, peers) |
| 2284 | fc_queue_work(shost, &vport->vport_delete_work); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2285 | |
| 2286 | /* Remove any remote ports */ |
| 2287 | list_for_each_entry_safe(rport, next_rport, |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2288 | &fc_host->rports, peers) { |
| 2289 | list_del(&rport->peers); |
| 2290 | rport->port_state = FC_PORTSTATE_DELETED; |
| 2291 | fc_queue_work(shost, &rport->rport_delete_work); |
| 2292 | } |
| 2293 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2294 | list_for_each_entry_safe(rport, next_rport, |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2295 | &fc_host->rport_bindings, peers) { |
| 2296 | list_del(&rport->peers); |
| 2297 | rport->port_state = FC_PORTSTATE_DELETED; |
| 2298 | fc_queue_work(shost, &rport->rport_delete_work); |
| 2299 | } |
| 2300 | |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 2301 | spin_unlock_irqrestore(shost->host_lock, flags); |
| 2302 | |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2303 | /* flush all scan work items */ |
| 2304 | scsi_flush_work(shost); |
| 2305 | |
| 2306 | /* flush all stgt delete, and rport delete work items, then kill it */ |
| 2307 | if (fc_host->work_q) { |
| 2308 | work_q = fc_host->work_q; |
| 2309 | fc_host->work_q = NULL; |
| 2310 | destroy_workqueue(work_q); |
| 2311 | } |
| 2312 | |
| 2313 | /* flush all devloss work items, then kill it */ |
| 2314 | if (fc_host->devloss_work_q) { |
| 2315 | work_q = fc_host->devloss_work_q; |
| 2316 | fc_host->devloss_work_q = NULL; |
| 2317 | destroy_workqueue(work_q); |
| 2318 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2319 | } |
| 2320 | EXPORT_SYMBOL(fc_remove_host); |
| 2321 | |
Mike Christie | fff9d40 | 2008-08-19 18:45:23 -0500 | [diff] [blame] | 2322 | static void fc_terminate_rport_io(struct fc_rport *rport) |
| 2323 | { |
| 2324 | struct Scsi_Host *shost = rport_to_shost(rport); |
| 2325 | struct fc_internal *i = to_fc_internal(shost->transportt); |
| 2326 | |
| 2327 | /* Involve the LLDD if possible to terminate all io on the rport. */ |
| 2328 | if (i->f->terminate_rport_io) |
| 2329 | i->f->terminate_rport_io(rport); |
| 2330 | |
| 2331 | /* |
| 2332 | * must unblock to flush queued IO. The caller will have set |
| 2333 | * the port_state or flags, so that fc_remote_port_chkready will |
| 2334 | * fail IO. |
| 2335 | */ |
| 2336 | scsi_target_unblock(&rport->dev); |
| 2337 | } |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2338 | |
| 2339 | /** |
| 2340 | * fc_starget_delete - called to delete the scsi decendents of an rport |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 2341 | * @work: remote port to be operated on. |
Rob Landley | eb44820 | 2007-11-03 13:30:39 -0500 | [diff] [blame] | 2342 | * |
| 2343 | * Deletes target and all sdevs. |
| 2344 | */ |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2345 | static void |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 2346 | fc_starget_delete(struct work_struct *work) |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2347 | { |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 2348 | struct fc_rport *rport = |
| 2349 | container_of(work, struct fc_rport, stgt_delete_work); |
James Smart | 0f29b96 | 2006-08-18 17:33:29 -0400 | [diff] [blame] | 2350 | |
Mike Christie | fff9d40 | 2008-08-19 18:45:23 -0500 | [diff] [blame] | 2351 | fc_terminate_rport_io(rport); |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2352 | scsi_remove_target(&rport->dev); |
| 2353 | } |
| 2354 | |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2355 | |
| 2356 | /** |
| 2357 | * fc_rport_final_delete - finish rport termination and delete it. |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 2358 | * @work: remote port to be deleted. |
Rob Landley | eb44820 | 2007-11-03 13:30:39 -0500 | [diff] [blame] | 2359 | */ |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2360 | static void |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 2361 | fc_rport_final_delete(struct work_struct *work) |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2362 | { |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 2363 | struct fc_rport *rport = |
| 2364 | container_of(work, struct fc_rport, rport_delete_work); |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2365 | struct device *dev = &rport->dev; |
| 2366 | struct Scsi_Host *shost = rport_to_shost(rport); |
James Smart | 0f29b96 | 2006-08-18 17:33:29 -0400 | [diff] [blame] | 2367 | struct fc_internal *i = to_fc_internal(shost->transportt); |
James Smart | 92740b2 | 2007-04-27 11:53:17 -0400 | [diff] [blame] | 2368 | unsigned long flags; |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2369 | |
| 2370 | /* |
James Smart | 9ef3e4a | 2007-05-24 19:04:44 -0400 | [diff] [blame] | 2371 | * if a scan is pending, flush the SCSI Host work_q so that |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2372 | * that we can reclaim the rport scan work element. |
| 2373 | */ |
| 2374 | if (rport->flags & FC_RPORT_SCAN_PENDING) |
| 2375 | scsi_flush_work(shost); |
| 2376 | |
Mike Christie | fff9d40 | 2008-08-19 18:45:23 -0500 | [diff] [blame] | 2377 | fc_terminate_rport_io(rport); |
James Smart | 92740b2 | 2007-04-27 11:53:17 -0400 | [diff] [blame] | 2378 | /* |
| 2379 | * Cancel any outstanding timers. These should really exist |
| 2380 | * only when rmmod'ing the LLDD and we're asking for |
| 2381 | * immediate termination of the rports |
| 2382 | */ |
| 2383 | spin_lock_irqsave(shost->host_lock, flags); |
| 2384 | if (rport->flags & FC_RPORT_DEVLOSS_PENDING) { |
| 2385 | spin_unlock_irqrestore(shost->host_lock, flags); |
| 2386 | if (!cancel_delayed_work(&rport->fail_io_work)) |
| 2387 | fc_flush_devloss(shost); |
| 2388 | if (!cancel_delayed_work(&rport->dev_loss_work)) |
| 2389 | fc_flush_devloss(shost); |
| 2390 | spin_lock_irqsave(shost->host_lock, flags); |
| 2391 | rport->flags &= ~FC_RPORT_DEVLOSS_PENDING; |
| 2392 | } |
| 2393 | spin_unlock_irqrestore(shost->host_lock, flags); |
| 2394 | |
James Smart | 0f29b96 | 2006-08-18 17:33:29 -0400 | [diff] [blame] | 2395 | /* Delete SCSI target and sdevs */ |
| 2396 | if (rport->scsi_target_id != -1) |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 2397 | fc_starget_delete(&rport->stgt_delete_work); |
James Smart | 92740b2 | 2007-04-27 11:53:17 -0400 | [diff] [blame] | 2398 | |
| 2399 | /* |
| 2400 | * Notify the driver that the rport is now dead. The LLDD will |
| 2401 | * also guarantee that any communication to the rport is terminated |
James Smart | 4be98c0 | 2009-01-05 12:14:18 -0500 | [diff] [blame] | 2402 | * |
| 2403 | * Avoid this call if we already called it when we preserved the |
| 2404 | * rport for the binding. |
James Smart | 92740b2 | 2007-04-27 11:53:17 -0400 | [diff] [blame] | 2405 | */ |
James Smart | 4be98c0 | 2009-01-05 12:14:18 -0500 | [diff] [blame] | 2406 | if (!(rport->flags & FC_RPORT_DEVLOSS_CALLBK_DONE) && |
| 2407 | (i->f->dev_loss_tmo_callbk)) |
James Smart | 0f29b96 | 2006-08-18 17:33:29 -0400 | [diff] [blame] | 2408 | i->f->dev_loss_tmo_callbk(rport); |
James Smart | 0f29b96 | 2006-08-18 17:33:29 -0400 | [diff] [blame] | 2409 | |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2410 | transport_remove_device(dev); |
| 2411 | device_del(dev); |
| 2412 | transport_destroy_device(dev); |
James Smart | 3bdad7b | 2006-06-26 14:19:59 -0400 | [diff] [blame] | 2413 | put_device(&shost->shost_gendev); /* for fc_host->rport list */ |
| 2414 | put_device(dev); /* for self-reference */ |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2415 | } |
| 2416 | |
| 2417 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2418 | /** |
| 2419 | * fc_rport_create - allocates and creates a remote FC port. |
| 2420 | * @shost: scsi host the remote port is connected to. |
| 2421 | * @channel: Channel on shost port connected to. |
| 2422 | * @ids: The world wide names, fc address, and FC4 port |
| 2423 | * roles for the remote port. |
| 2424 | * |
| 2425 | * Allocates and creates the remoter port structure, including the |
| 2426 | * class and sysfs creation. |
| 2427 | * |
| 2428 | * Notes: |
| 2429 | * This routine assumes no locks are held on entry. |
Rob Landley | eb44820 | 2007-11-03 13:30:39 -0500 | [diff] [blame] | 2430 | */ |
Adrian Bunk | 44818ef | 2007-07-09 11:59:59 -0700 | [diff] [blame] | 2431 | static struct fc_rport * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2432 | fc_rport_create(struct Scsi_Host *shost, int channel, |
| 2433 | struct fc_rport_identifiers *ids) |
| 2434 | { |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2435 | struct fc_host_attrs *fc_host = shost_to_fc_host(shost); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2436 | struct fc_internal *fci = to_fc_internal(shost->transportt); |
| 2437 | struct fc_rport *rport; |
| 2438 | struct device *dev; |
| 2439 | unsigned long flags; |
| 2440 | int error; |
| 2441 | size_t size; |
| 2442 | |
| 2443 | size = (sizeof(struct fc_rport) + fci->f->dd_fcrport_size); |
Jes Sorensen | 24669f75 | 2006-01-16 10:31:18 -0500 | [diff] [blame] | 2444 | rport = kzalloc(size, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2445 | if (unlikely(!rport)) { |
Harvey Harrison | cadbd4a | 2008-07-03 23:47:27 -0700 | [diff] [blame] | 2446 | printk(KERN_ERR "%s: allocation failure\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2447 | return NULL; |
| 2448 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2449 | |
| 2450 | rport->maxframe_size = -1; |
| 2451 | rport->supported_classes = FC_COS_UNSPECIFIED; |
| 2452 | rport->dev_loss_tmo = fc_dev_loss_tmo; |
| 2453 | memcpy(&rport->node_name, &ids->node_name, sizeof(rport->node_name)); |
| 2454 | memcpy(&rport->port_name, &ids->port_name, sizeof(rport->port_name)); |
| 2455 | rport->port_id = ids->port_id; |
| 2456 | rport->roles = ids->roles; |
| 2457 | rport->port_state = FC_PORTSTATE_ONLINE; |
| 2458 | if (fci->f->dd_fcrport_size) |
| 2459 | rport->dd_data = &rport[1]; |
| 2460 | rport->channel = channel; |
James Smart | 0f29b96 | 2006-08-18 17:33:29 -0400 | [diff] [blame] | 2461 | rport->fast_io_fail_tmo = -1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2462 | |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 2463 | INIT_DELAYED_WORK(&rport->dev_loss_work, fc_timeout_deleted_rport); |
| 2464 | INIT_DELAYED_WORK(&rport->fail_io_work, fc_timeout_fail_rport_io); |
| 2465 | INIT_WORK(&rport->scan_work, fc_scsi_scan_rport); |
| 2466 | INIT_WORK(&rport->stgt_delete_work, fc_starget_delete); |
| 2467 | INIT_WORK(&rport->rport_delete_work, fc_rport_final_delete); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2468 | |
| 2469 | spin_lock_irqsave(shost->host_lock, flags); |
| 2470 | |
| 2471 | rport->number = fc_host->next_rport_number++; |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 2472 | if (rport->roles & FC_PORT_ROLE_FCP_TARGET) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2473 | rport->scsi_target_id = fc_host->next_target_id++; |
| 2474 | else |
| 2475 | rport->scsi_target_id = -1; |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2476 | list_add_tail(&rport->peers, &fc_host->rports); |
James Smart | 3bdad7b | 2006-06-26 14:19:59 -0400 | [diff] [blame] | 2477 | get_device(&shost->shost_gendev); /* for fc_host->rport list */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2478 | |
| 2479 | spin_unlock_irqrestore(shost->host_lock, flags); |
| 2480 | |
| 2481 | dev = &rport->dev; |
James Smart | 3bdad7b | 2006-06-26 14:19:59 -0400 | [diff] [blame] | 2482 | device_initialize(dev); /* takes self reference */ |
| 2483 | dev->parent = get_device(&shost->shost_gendev); /* parent reference */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2484 | dev->release = fc_rport_dev_release; |
Kay Sievers | 71610f5 | 2008-12-03 22:41:36 +0100 | [diff] [blame] | 2485 | dev_set_name(dev, "rport-%d:%d-%d", |
| 2486 | shost->host_no, channel, rport->number); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2487 | transport_setup_device(dev); |
| 2488 | |
| 2489 | error = device_add(dev); |
| 2490 | if (error) { |
| 2491 | printk(KERN_ERR "FC Remote Port device_add failed\n"); |
| 2492 | goto delete_rport; |
| 2493 | } |
| 2494 | transport_add_device(dev); |
| 2495 | transport_configure_device(dev); |
| 2496 | |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 2497 | if (rport->roles & FC_PORT_ROLE_FCP_TARGET) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2498 | /* initiate a scan of the target */ |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2499 | rport->flags |= FC_RPORT_SCAN_PENDING; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2500 | scsi_queue_work(shost, &rport->scan_work); |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2501 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2502 | |
| 2503 | return rport; |
| 2504 | |
| 2505 | delete_rport: |
| 2506 | transport_destroy_device(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2507 | spin_lock_irqsave(shost->host_lock, flags); |
| 2508 | list_del(&rport->peers); |
James Smart | 3bdad7b | 2006-06-26 14:19:59 -0400 | [diff] [blame] | 2509 | put_device(&shost->shost_gendev); /* for fc_host->rport list */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2510 | spin_unlock_irqrestore(shost->host_lock, flags); |
| 2511 | put_device(dev->parent); |
| 2512 | kfree(rport); |
| 2513 | return NULL; |
| 2514 | } |
| 2515 | |
| 2516 | /** |
Rob Landley | eb44820 | 2007-11-03 13:30:39 -0500 | [diff] [blame] | 2517 | * fc_remote_port_add - notify fc transport of the existence of a remote FC port. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2518 | * @shost: scsi host the remote port is connected to. |
| 2519 | * @channel: Channel on shost port connected to. |
| 2520 | * @ids: The world wide names, fc address, and FC4 port |
| 2521 | * roles for the remote port. |
| 2522 | * |
| 2523 | * The LLDD calls this routine to notify the transport of the existence |
| 2524 | * of a remote port. The LLDD provides the unique identifiers (wwpn,wwn) |
| 2525 | * of the port, it's FC address (port_id), and the FC4 roles that are |
| 2526 | * active for the port. |
| 2527 | * |
| 2528 | * For ports that are FCP targets (aka scsi targets), the FC transport |
| 2529 | * maintains consistent target id bindings on behalf of the LLDD. |
| 2530 | * A consistent target id binding is an assignment of a target id to |
| 2531 | * a remote port identifier, which persists while the scsi host is |
| 2532 | * attached. The remote port can disappear, then later reappear, and |
| 2533 | * it's target id assignment remains the same. This allows for shifts |
| 2534 | * in FC addressing (if binding by wwpn or wwnn) with no apparent |
| 2535 | * changes to the scsi subsystem which is based on scsi host number and |
| 2536 | * target id values. Bindings are only valid during the attachment of |
| 2537 | * the scsi host. If the host detaches, then later re-attaches, target |
| 2538 | * id bindings may change. |
| 2539 | * |
| 2540 | * This routine is responsible for returning a remote port structure. |
| 2541 | * The routine will search the list of remote ports it maintains |
| 2542 | * internally on behalf of consistent target id mappings. If found, the |
| 2543 | * remote port structure will be reused. Otherwise, a new remote port |
| 2544 | * structure will be allocated. |
| 2545 | * |
| 2546 | * Whenever a remote port is allocated, a new fc_remote_port class |
| 2547 | * device is created. |
| 2548 | * |
| 2549 | * Should not be called from interrupt context. |
| 2550 | * |
| 2551 | * Notes: |
| 2552 | * This routine assumes no locks are held on entry. |
Rob Landley | eb44820 | 2007-11-03 13:30:39 -0500 | [diff] [blame] | 2553 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2554 | struct fc_rport * |
| 2555 | fc_remote_port_add(struct Scsi_Host *shost, int channel, |
| 2556 | struct fc_rport_identifiers *ids) |
| 2557 | { |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2558 | struct fc_internal *fci = to_fc_internal(shost->transportt); |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2559 | struct fc_host_attrs *fc_host = shost_to_fc_host(shost); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2560 | struct fc_rport *rport; |
| 2561 | unsigned long flags; |
| 2562 | int match = 0; |
| 2563 | |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2564 | /* ensure any stgt delete functions are done */ |
| 2565 | fc_flush_work(shost); |
| 2566 | |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2567 | /* |
| 2568 | * Search the list of "active" rports, for an rport that has been |
| 2569 | * deleted, but we've held off the real delete while the target |
| 2570 | * is in a "blocked" state. |
| 2571 | */ |
| 2572 | spin_lock_irqsave(shost->host_lock, flags); |
| 2573 | |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2574 | list_for_each_entry(rport, &fc_host->rports, peers) { |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2575 | |
| 2576 | if ((rport->port_state == FC_PORTSTATE_BLOCKED) && |
| 2577 | (rport->channel == channel)) { |
| 2578 | |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2579 | switch (fc_host->tgtid_bind_type) { |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2580 | case FC_TGTID_BIND_BY_WWPN: |
| 2581 | case FC_TGTID_BIND_NONE: |
| 2582 | if (rport->port_name == ids->port_name) |
| 2583 | match = 1; |
| 2584 | break; |
| 2585 | case FC_TGTID_BIND_BY_WWNN: |
| 2586 | if (rport->node_name == ids->node_name) |
| 2587 | match = 1; |
| 2588 | break; |
| 2589 | case FC_TGTID_BIND_BY_ID: |
| 2590 | if (rport->port_id == ids->port_id) |
| 2591 | match = 1; |
| 2592 | break; |
| 2593 | } |
| 2594 | |
| 2595 | if (match) { |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2596 | |
| 2597 | memcpy(&rport->node_name, &ids->node_name, |
| 2598 | sizeof(rport->node_name)); |
| 2599 | memcpy(&rport->port_name, &ids->port_name, |
| 2600 | sizeof(rport->port_name)); |
| 2601 | rport->port_id = ids->port_id; |
| 2602 | |
| 2603 | rport->port_state = FC_PORTSTATE_ONLINE; |
| 2604 | rport->roles = ids->roles; |
| 2605 | |
| 2606 | spin_unlock_irqrestore(shost->host_lock, flags); |
| 2607 | |
| 2608 | if (fci->f->dd_fcrport_size) |
| 2609 | memset(rport->dd_data, 0, |
| 2610 | fci->f->dd_fcrport_size); |
| 2611 | |
| 2612 | /* |
James Smart | 92740b2 | 2007-04-27 11:53:17 -0400 | [diff] [blame] | 2613 | * If we were not a target, cancel the |
| 2614 | * io terminate and rport timers, and |
| 2615 | * we're done. |
| 2616 | * |
| 2617 | * If we were a target, but our new role |
| 2618 | * doesn't indicate a target, leave the |
| 2619 | * timers running expecting the role to |
| 2620 | * change as the target fully logs in. If |
| 2621 | * it doesn't, the target will be torn down. |
| 2622 | * |
| 2623 | * If we were a target, and our role shows |
| 2624 | * we're still a target, cancel the timers |
| 2625 | * and kick off a scan. |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2626 | */ |
James Smart | 92740b2 | 2007-04-27 11:53:17 -0400 | [diff] [blame] | 2627 | |
| 2628 | /* was a target, not in roles */ |
| 2629 | if ((rport->scsi_target_id != -1) && |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 2630 | (!(ids->roles & FC_PORT_ROLE_FCP_TARGET))) |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2631 | return rport; |
| 2632 | |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2633 | /* |
James Smart | 92740b2 | 2007-04-27 11:53:17 -0400 | [diff] [blame] | 2634 | * Stop the fail io and dev_loss timers. |
| 2635 | * If they flush, the port_state will |
| 2636 | * be checked and will NOOP the function. |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2637 | */ |
James Smart | 0f29b96 | 2006-08-18 17:33:29 -0400 | [diff] [blame] | 2638 | if (!cancel_delayed_work(&rport->fail_io_work)) |
| 2639 | fc_flush_devloss(shost); |
James Smart | 92740b2 | 2007-04-27 11:53:17 -0400 | [diff] [blame] | 2640 | if (!cancel_delayed_work(&rport->dev_loss_work)) |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2641 | fc_flush_devloss(shost); |
| 2642 | |
| 2643 | spin_lock_irqsave(shost->host_lock, flags); |
| 2644 | |
Mike Christie | fff9d40 | 2008-08-19 18:45:23 -0500 | [diff] [blame] | 2645 | rport->flags &= ~(FC_RPORT_FAST_FAIL_TIMEDOUT | |
James Smart | 4be98c0 | 2009-01-05 12:14:18 -0500 | [diff] [blame] | 2646 | FC_RPORT_DEVLOSS_PENDING | |
| 2647 | FC_RPORT_DEVLOSS_CALLBK_DONE); |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2648 | |
James Smart | 92740b2 | 2007-04-27 11:53:17 -0400 | [diff] [blame] | 2649 | /* if target, initiate a scan */ |
| 2650 | if (rport->scsi_target_id != -1) { |
| 2651 | rport->flags |= FC_RPORT_SCAN_PENDING; |
| 2652 | scsi_queue_work(shost, |
| 2653 | &rport->scan_work); |
| 2654 | spin_unlock_irqrestore(shost->host_lock, |
| 2655 | flags); |
| 2656 | scsi_target_unblock(&rport->dev); |
| 2657 | } else |
| 2658 | spin_unlock_irqrestore(shost->host_lock, |
| 2659 | flags); |
James Smart | a0785ed | 2006-05-11 13:27:09 -0400 | [diff] [blame] | 2660 | |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2661 | return rport; |
| 2662 | } |
| 2663 | } |
| 2664 | } |
| 2665 | |
James Smart | 92740b2 | 2007-04-27 11:53:17 -0400 | [diff] [blame] | 2666 | /* |
| 2667 | * Search the bindings array |
| 2668 | * Note: if never a FCP target, you won't be on this list |
| 2669 | */ |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2670 | if (fc_host->tgtid_bind_type != FC_TGTID_BIND_NONE) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2671 | |
| 2672 | /* search for a matching consistent binding */ |
| 2673 | |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2674 | list_for_each_entry(rport, &fc_host->rport_bindings, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2675 | peers) { |
| 2676 | if (rport->channel != channel) |
| 2677 | continue; |
| 2678 | |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2679 | switch (fc_host->tgtid_bind_type) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2680 | case FC_TGTID_BIND_BY_WWPN: |
| 2681 | if (rport->port_name == ids->port_name) |
| 2682 | match = 1; |
| 2683 | break; |
| 2684 | case FC_TGTID_BIND_BY_WWNN: |
| 2685 | if (rport->node_name == ids->node_name) |
| 2686 | match = 1; |
| 2687 | break; |
| 2688 | case FC_TGTID_BIND_BY_ID: |
| 2689 | if (rport->port_id == ids->port_id) |
| 2690 | match = 1; |
| 2691 | break; |
| 2692 | case FC_TGTID_BIND_NONE: /* to keep compiler happy */ |
| 2693 | break; |
| 2694 | } |
| 2695 | |
| 2696 | if (match) { |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2697 | list_move_tail(&rport->peers, &fc_host->rports); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2698 | break; |
| 2699 | } |
| 2700 | } |
| 2701 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2702 | if (match) { |
| 2703 | memcpy(&rport->node_name, &ids->node_name, |
| 2704 | sizeof(rport->node_name)); |
| 2705 | memcpy(&rport->port_name, &ids->port_name, |
| 2706 | sizeof(rport->port_name)); |
| 2707 | rport->port_id = ids->port_id; |
| 2708 | rport->roles = ids->roles; |
| 2709 | rport->port_state = FC_PORTSTATE_ONLINE; |
Mike Christie | fff9d40 | 2008-08-19 18:45:23 -0500 | [diff] [blame] | 2710 | rport->flags &= ~FC_RPORT_FAST_FAIL_TIMEDOUT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2711 | |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2712 | if (fci->f->dd_fcrport_size) |
| 2713 | memset(rport->dd_data, 0, |
| 2714 | fci->f->dd_fcrport_size); |
| 2715 | |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 2716 | if (rport->roles & FC_PORT_ROLE_FCP_TARGET) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2717 | /* initiate a scan of the target */ |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2718 | rport->flags |= FC_RPORT_SCAN_PENDING; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2719 | scsi_queue_work(shost, &rport->scan_work); |
James Smart | a0785ed | 2006-05-11 13:27:09 -0400 | [diff] [blame] | 2720 | spin_unlock_irqrestore(shost->host_lock, flags); |
| 2721 | scsi_target_unblock(&rport->dev); |
| 2722 | } else |
| 2723 | spin_unlock_irqrestore(shost->host_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2724 | |
| 2725 | return rport; |
| 2726 | } |
| 2727 | } |
| 2728 | |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2729 | spin_unlock_irqrestore(shost->host_lock, flags); |
| 2730 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2731 | /* No consistent binding found - create new remote port entry */ |
| 2732 | rport = fc_rport_create(shost, channel, ids); |
| 2733 | |
| 2734 | return rport; |
| 2735 | } |
| 2736 | EXPORT_SYMBOL(fc_remote_port_add); |
| 2737 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2738 | |
| 2739 | /** |
Rob Landley | eb44820 | 2007-11-03 13:30:39 -0500 | [diff] [blame] | 2740 | * fc_remote_port_delete - notifies the fc transport that a remote port is no longer in existence. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2741 | * @rport: The remote port that no longer exists |
| 2742 | * |
| 2743 | * The LLDD calls this routine to notify the transport that a remote |
| 2744 | * port is no longer part of the topology. Note: Although a port |
| 2745 | * may no longer be part of the topology, it may persist in the remote |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2746 | * ports displayed by the fc_host. We do this under 2 conditions: |
Rob Landley | eb44820 | 2007-11-03 13:30:39 -0500 | [diff] [blame] | 2747 | * 1) If the port was a scsi target, we delay its deletion by "blocking" it. |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2748 | * This allows the port to temporarily disappear, then reappear without |
| 2749 | * disrupting the SCSI device tree attached to it. During the "blocked" |
| 2750 | * period the port will still exist. |
Rob Landley | eb44820 | 2007-11-03 13:30:39 -0500 | [diff] [blame] | 2751 | * 2) If the port was a scsi target and disappears for longer than we |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2752 | * expect, we'll delete the port and the tear down the SCSI device tree |
| 2753 | * attached to it. However, we want to semi-persist the target id assigned |
| 2754 | * to that port if it eventually does exist. The port structure will |
| 2755 | * remain (although with minimal information) so that the target id |
| 2756 | * bindings remails. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2757 | * |
| 2758 | * If the remote port is not an FCP Target, it will be fully torn down |
| 2759 | * and deallocated, including the fc_remote_port class device. |
| 2760 | * |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2761 | * If the remote port is an FCP Target, the port will be placed in a |
| 2762 | * temporary blocked state. From the LLDD's perspective, the rport no |
| 2763 | * longer exists. From the SCSI midlayer's perspective, the SCSI target |
| 2764 | * exists, but all sdevs on it are blocked from further I/O. The following |
Rob Landley | eb44820 | 2007-11-03 13:30:39 -0500 | [diff] [blame] | 2765 | * is then expected. |
| 2766 | * |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2767 | * If the remote port does not return (signaled by a LLDD call to |
| 2768 | * fc_remote_port_add()) within the dev_loss_tmo timeout, then the |
| 2769 | * scsi target is removed - killing all outstanding i/o and removing the |
| 2770 | * scsi devices attached ot it. The port structure will be marked Not |
| 2771 | * Present and be partially cleared, leaving only enough information to |
| 2772 | * recognize the remote port relative to the scsi target id binding if |
| 2773 | * it later appears. The port will remain as long as there is a valid |
| 2774 | * binding (e.g. until the user changes the binding type or unloads the |
| 2775 | * scsi host with the binding). |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2776 | * |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2777 | * If the remote port returns within the dev_loss_tmo value (and matches |
| 2778 | * according to the target id binding type), the port structure will be |
| 2779 | * reused. If it is no longer a SCSI target, the target will be torn |
| 2780 | * down. If it continues to be a SCSI target, then the target will be |
| 2781 | * unblocked (allowing i/o to be resumed), and a scan will be activated |
| 2782 | * to ensure that all luns are detected. |
| 2783 | * |
| 2784 | * Called from normal process context only - cannot be called from interrupt. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2785 | * |
| 2786 | * Notes: |
| 2787 | * This routine assumes no locks are held on entry. |
Rob Landley | eb44820 | 2007-11-03 13:30:39 -0500 | [diff] [blame] | 2788 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2789 | void |
| 2790 | fc_remote_port_delete(struct fc_rport *rport) |
| 2791 | { |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2792 | struct Scsi_Host *shost = rport_to_shost(rport); |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2793 | int timeout = rport->dev_loss_tmo; |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2794 | unsigned long flags; |
| 2795 | |
| 2796 | /* |
| 2797 | * No need to flush the fc_host work_q's, as all adds are synchronous. |
| 2798 | * |
| 2799 | * We do need to reclaim the rport scan work element, so eventually |
| 2800 | * (in fc_rport_final_delete()) we'll flush the scsi host work_q if |
| 2801 | * there's still a scan pending. |
| 2802 | */ |
| 2803 | |
| 2804 | spin_lock_irqsave(shost->host_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2805 | |
James Smart | 92740b2 | 2007-04-27 11:53:17 -0400 | [diff] [blame] | 2806 | if (rport->port_state != FC_PORTSTATE_ONLINE) { |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2807 | spin_unlock_irqrestore(shost->host_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2808 | return; |
| 2809 | } |
| 2810 | |
James Smart | 92740b2 | 2007-04-27 11:53:17 -0400 | [diff] [blame] | 2811 | /* |
| 2812 | * In the past, we if this was not an FCP-Target, we would |
| 2813 | * unconditionally just jump to deleting the rport. |
| 2814 | * However, rports can be used as node containers by the LLDD, |
| 2815 | * and its not appropriate to just terminate the rport at the |
| 2816 | * first sign of a loss in connectivity. The LLDD may want to |
| 2817 | * send ELS traffic to re-validate the login. If the rport is |
| 2818 | * immediately deleted, it makes it inappropriate for a node |
| 2819 | * container. |
| 2820 | * So... we now unconditionally wait dev_loss_tmo before |
| 2821 | * destroying an rport. |
| 2822 | */ |
| 2823 | |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2824 | rport->port_state = FC_PORTSTATE_BLOCKED; |
| 2825 | |
| 2826 | rport->flags |= FC_RPORT_DEVLOSS_PENDING; |
| 2827 | |
| 2828 | spin_unlock_irqrestore(shost->host_lock, flags); |
| 2829 | |
FUJITA Tomonori | 7525236 | 2007-09-01 02:02:27 +0900 | [diff] [blame] | 2830 | if (rport->roles & FC_PORT_ROLE_FCP_INITIATOR && |
| 2831 | shost->active_mode & MODE_TARGET) |
| 2832 | fc_tgt_it_nexus_destroy(shost, (unsigned long)rport); |
| 2833 | |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2834 | scsi_target_block(&rport->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2835 | |
James Smart | 0f29b96 | 2006-08-18 17:33:29 -0400 | [diff] [blame] | 2836 | /* see if we need to kill io faster than waiting for device loss */ |
| 2837 | if ((rport->fast_io_fail_tmo != -1) && |
Mike Christie | fff9d40 | 2008-08-19 18:45:23 -0500 | [diff] [blame] | 2838 | (rport->fast_io_fail_tmo < timeout)) |
James Smart | 0f29b96 | 2006-08-18 17:33:29 -0400 | [diff] [blame] | 2839 | fc_queue_devloss_work(shost, &rport->fail_io_work, |
| 2840 | rport->fast_io_fail_tmo * HZ); |
| 2841 | |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2842 | /* cap the length the devices can be blocked until they are deleted */ |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2843 | fc_queue_devloss_work(shost, &rport->dev_loss_work, timeout * HZ); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2844 | } |
| 2845 | EXPORT_SYMBOL(fc_remote_port_delete); |
| 2846 | |
| 2847 | /** |
Rob Landley | eb44820 | 2007-11-03 13:30:39 -0500 | [diff] [blame] | 2848 | * fc_remote_port_rolechg - notifies the fc transport that the roles on a remote may have changed. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2849 | * @rport: The remote port that changed. |
Rob Landley | eb44820 | 2007-11-03 13:30:39 -0500 | [diff] [blame] | 2850 | * @roles: New roles for this port. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2851 | * |
Rob Landley | eb44820 | 2007-11-03 13:30:39 -0500 | [diff] [blame] | 2852 | * Description: The LLDD calls this routine to notify the transport that the |
| 2853 | * roles on a remote port may have changed. The largest effect of this is |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2854 | * if a port now becomes a FCP Target, it must be allocated a |
| 2855 | * scsi target id. If the port is no longer a FCP target, any |
| 2856 | * scsi target id value assigned to it will persist in case the |
| 2857 | * role changes back to include FCP Target. No changes in the scsi |
| 2858 | * midlayer will be invoked if the role changes (in the expectation |
| 2859 | * that the role will be resumed. If it doesn't normal error processing |
| 2860 | * will take place). |
| 2861 | * |
| 2862 | * Should not be called from interrupt context. |
| 2863 | * |
| 2864 | * Notes: |
| 2865 | * This routine assumes no locks are held on entry. |
Rob Landley | eb44820 | 2007-11-03 13:30:39 -0500 | [diff] [blame] | 2866 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2867 | void |
| 2868 | fc_remote_port_rolechg(struct fc_rport *rport, u32 roles) |
| 2869 | { |
| 2870 | struct Scsi_Host *shost = rport_to_shost(rport); |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2871 | struct fc_host_attrs *fc_host = shost_to_fc_host(shost); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2872 | unsigned long flags; |
| 2873 | int create = 0; |
FUJITA Tomonori | 7525236 | 2007-09-01 02:02:27 +0900 | [diff] [blame] | 2874 | int ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2875 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2876 | spin_lock_irqsave(shost->host_lock, flags); |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 2877 | if (roles & FC_PORT_ROLE_FCP_TARGET) { |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2878 | if (rport->scsi_target_id == -1) { |
| 2879 | rport->scsi_target_id = fc_host->next_target_id++; |
| 2880 | create = 1; |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 2881 | } else if (!(rport->roles & FC_PORT_ROLE_FCP_TARGET)) |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2882 | create = 1; |
FUJITA Tomonori | 7525236 | 2007-09-01 02:02:27 +0900 | [diff] [blame] | 2883 | } else if (shost->active_mode & MODE_TARGET) { |
| 2884 | ret = fc_tgt_it_nexus_create(shost, (unsigned long)rport, |
| 2885 | (char *)&rport->node_name); |
| 2886 | if (ret) |
| 2887 | printk(KERN_ERR "FC Remore Port tgt nexus failed %d\n", |
| 2888 | ret); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2889 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2890 | |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2891 | rport->roles = roles; |
| 2892 | |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2893 | spin_unlock_irqrestore(shost->host_lock, flags); |
| 2894 | |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2895 | if (create) { |
| 2896 | /* |
| 2897 | * There may have been a delete timer running on the |
| 2898 | * port. Ensure that it is cancelled as we now know |
| 2899 | * the port is an FCP Target. |
| 2900 | * Note: we know the rport is exists and in an online |
| 2901 | * state as the LLDD would not have had an rport |
| 2902 | * reference to pass us. |
| 2903 | * |
| 2904 | * Take no action on the del_timer failure as the state |
| 2905 | * machine state change will validate the |
| 2906 | * transaction. |
| 2907 | */ |
James Smart | 0f29b96 | 2006-08-18 17:33:29 -0400 | [diff] [blame] | 2908 | if (!cancel_delayed_work(&rport->fail_io_work)) |
| 2909 | fc_flush_devloss(shost); |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2910 | if (!cancel_delayed_work(&rport->dev_loss_work)) |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2911 | fc_flush_devloss(shost); |
| 2912 | |
| 2913 | spin_lock_irqsave(shost->host_lock, flags); |
Mike Christie | fff9d40 | 2008-08-19 18:45:23 -0500 | [diff] [blame] | 2914 | rport->flags &= ~(FC_RPORT_FAST_FAIL_TIMEDOUT | |
| 2915 | FC_RPORT_DEVLOSS_PENDING); |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2916 | spin_unlock_irqrestore(shost->host_lock, flags); |
| 2917 | |
| 2918 | /* ensure any stgt delete functions are done */ |
| 2919 | fc_flush_work(shost); |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2920 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2921 | /* initiate a scan of the target */ |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2922 | spin_lock_irqsave(shost->host_lock, flags); |
| 2923 | rport->flags |= FC_RPORT_SCAN_PENDING; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2924 | scsi_queue_work(shost, &rport->scan_work); |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2925 | spin_unlock_irqrestore(shost->host_lock, flags); |
James Smart | a0785ed | 2006-05-11 13:27:09 -0400 | [diff] [blame] | 2926 | scsi_target_unblock(&rport->dev); |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2927 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2928 | } |
| 2929 | EXPORT_SYMBOL(fc_remote_port_rolechg); |
| 2930 | |
| 2931 | /** |
Rob Landley | eb44820 | 2007-11-03 13:30:39 -0500 | [diff] [blame] | 2932 | * fc_timeout_deleted_rport - Timeout handler for a deleted remote port. |
James Smart | 92740b2 | 2007-04-27 11:53:17 -0400 | [diff] [blame] | 2933 | * @work: rport target that failed to reappear in the allotted time. |
Rob Landley | eb44820 | 2007-11-03 13:30:39 -0500 | [diff] [blame] | 2934 | * |
| 2935 | * Description: An attempt to delete a remote port blocks, and if it fails |
| 2936 | * to return in the allotted time this gets called. |
| 2937 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2938 | static void |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 2939 | fc_timeout_deleted_rport(struct work_struct *work) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2940 | { |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 2941 | struct fc_rport *rport = |
| 2942 | container_of(work, struct fc_rport, dev_loss_work.work); |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2943 | struct Scsi_Host *shost = rport_to_shost(rport); |
James Smart | 4be98c0 | 2009-01-05 12:14:18 -0500 | [diff] [blame] | 2944 | struct fc_internal *i = to_fc_internal(shost->transportt); |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2945 | struct fc_host_attrs *fc_host = shost_to_fc_host(shost); |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2946 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2947 | |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2948 | spin_lock_irqsave(shost->host_lock, flags); |
| 2949 | |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2950 | rport->flags &= ~FC_RPORT_DEVLOSS_PENDING; |
| 2951 | |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2952 | /* |
James Smart | 92740b2 | 2007-04-27 11:53:17 -0400 | [diff] [blame] | 2953 | * If the port is ONLINE, then it came back. If it was a SCSI |
| 2954 | * target, validate it still is. If not, tear down the |
| 2955 | * scsi_target on it. |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2956 | */ |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2957 | if ((rport->port_state == FC_PORTSTATE_ONLINE) && |
James Smart | 92740b2 | 2007-04-27 11:53:17 -0400 | [diff] [blame] | 2958 | (rport->scsi_target_id != -1) && |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 2959 | !(rport->roles & FC_PORT_ROLE_FCP_TARGET)) { |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2960 | dev_printk(KERN_ERR, &rport->dev, |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2961 | "blocked FC remote port time out: no longer" |
| 2962 | " a FCP target, removing starget\n"); |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2963 | spin_unlock_irqrestore(shost->host_lock, flags); |
James Smart | a0785ed | 2006-05-11 13:27:09 -0400 | [diff] [blame] | 2964 | scsi_target_unblock(&rport->dev); |
| 2965 | fc_queue_work(shost, &rport->stgt_delete_work); |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2966 | return; |
| 2967 | } |
| 2968 | |
James Smart | 92740b2 | 2007-04-27 11:53:17 -0400 | [diff] [blame] | 2969 | /* NOOP state - we're flushing workq's */ |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2970 | if (rport->port_state != FC_PORTSTATE_BLOCKED) { |
| 2971 | spin_unlock_irqrestore(shost->host_lock, flags); |
| 2972 | dev_printk(KERN_ERR, &rport->dev, |
James Smart | 92740b2 | 2007-04-27 11:53:17 -0400 | [diff] [blame] | 2973 | "blocked FC remote port time out: leaving" |
| 2974 | " rport%s alone\n", |
| 2975 | (rport->scsi_target_id != -1) ? " and starget" : ""); |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2976 | return; |
| 2977 | } |
| 2978 | |
James Smart | 92740b2 | 2007-04-27 11:53:17 -0400 | [diff] [blame] | 2979 | if ((fc_host->tgtid_bind_type == FC_TGTID_BIND_NONE) || |
| 2980 | (rport->scsi_target_id == -1)) { |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2981 | list_del(&rport->peers); |
| 2982 | rport->port_state = FC_PORTSTATE_DELETED; |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2983 | dev_printk(KERN_ERR, &rport->dev, |
James Smart | 92740b2 | 2007-04-27 11:53:17 -0400 | [diff] [blame] | 2984 | "blocked FC remote port time out: removing" |
| 2985 | " rport%s\n", |
| 2986 | (rport->scsi_target_id != -1) ? " and starget" : ""); |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2987 | fc_queue_work(shost, &rport->rport_delete_work); |
| 2988 | spin_unlock_irqrestore(shost->host_lock, flags); |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2989 | return; |
| 2990 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2991 | |
| 2992 | dev_printk(KERN_ERR, &rport->dev, |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2993 | "blocked FC remote port time out: removing target and " |
| 2994 | "saving binding\n"); |
| 2995 | |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 2996 | list_move_tail(&rport->peers, &fc_host->rport_bindings); |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 2997 | |
| 2998 | /* |
| 2999 | * Note: We do not remove or clear the hostdata area. This allows |
| 3000 | * host-specific target data to persist along with the |
| 3001 | * scsi_target_id. It's up to the host to manage it's hostdata area. |
| 3002 | */ |
| 3003 | |
| 3004 | /* |
| 3005 | * Reinitialize port attributes that may change if the port comes back. |
| 3006 | */ |
| 3007 | rport->maxframe_size = -1; |
| 3008 | rport->supported_classes = FC_COS_UNSPECIFIED; |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 3009 | rport->roles = FC_PORT_ROLE_UNKNOWN; |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 3010 | rport->port_state = FC_PORTSTATE_NOTPRESENT; |
Mike Christie | fff9d40 | 2008-08-19 18:45:23 -0500 | [diff] [blame] | 3011 | rport->flags &= ~FC_RPORT_FAST_FAIL_TIMEDOUT; |
James Smart | 4be98c0 | 2009-01-05 12:14:18 -0500 | [diff] [blame] | 3012 | rport->flags |= FC_RPORT_DEVLOSS_CALLBK_DONE; |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 3013 | |
James Smart | f78badb | 2008-12-05 16:29:59 -0600 | [diff] [blame] | 3014 | /* |
| 3015 | * Pre-emptively kill I/O rather than waiting for the work queue |
| 3016 | * item to teardown the starget. (FCOE libFC folks prefer this |
| 3017 | * and to have the rport_port_id still set when it's done). |
| 3018 | */ |
| 3019 | spin_unlock_irqrestore(shost->host_lock, flags); |
| 3020 | fc_terminate_rport_io(rport); |
| 3021 | |
| 3022 | BUG_ON(rport->port_state != FC_PORTSTATE_NOTPRESENT); |
| 3023 | |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 3024 | /* remove the identifiers that aren't used in the consisting binding */ |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 3025 | switch (fc_host->tgtid_bind_type) { |
James.Smart@Emulex.Com | 19a7b4a | 2005-10-18 12:03:35 -0400 | [diff] [blame] | 3026 | case FC_TGTID_BIND_BY_WWPN: |
| 3027 | rport->node_name = -1; |
| 3028 | rport->port_id = -1; |
| 3029 | break; |
| 3030 | case FC_TGTID_BIND_BY_WWNN: |
| 3031 | rport->port_name = -1; |
| 3032 | rport->port_id = -1; |
| 3033 | break; |
| 3034 | case FC_TGTID_BIND_BY_ID: |
| 3035 | rport->node_name = -1; |
| 3036 | rport->port_name = -1; |
| 3037 | break; |
| 3038 | case FC_TGTID_BIND_NONE: /* to keep compiler happy */ |
| 3039 | break; |
| 3040 | } |
| 3041 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3042 | /* |
| 3043 | * As this only occurs if the remote port (scsi target) |
| 3044 | * went away and didn't come back - we'll remove |
| 3045 | * all attached scsi devices. |
| 3046 | */ |
James Smart | a0785ed | 2006-05-11 13:27:09 -0400 | [diff] [blame] | 3047 | fc_queue_work(shost, &rport->stgt_delete_work); |
James Smart | 4be98c0 | 2009-01-05 12:14:18 -0500 | [diff] [blame] | 3048 | |
| 3049 | /* |
| 3050 | * Notify the driver that the rport is now dead. The LLDD will |
| 3051 | * also guarantee that any communication to the rport is terminated |
| 3052 | * |
| 3053 | * Note: we set the CALLBK_DONE flag above to correspond |
| 3054 | */ |
| 3055 | if (i->f->dev_loss_tmo_callbk) |
| 3056 | i->f->dev_loss_tmo_callbk(rport); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3057 | } |
| 3058 | |
James Smart | 4be98c0 | 2009-01-05 12:14:18 -0500 | [diff] [blame] | 3059 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3060 | /** |
Rob Landley | eb44820 | 2007-11-03 13:30:39 -0500 | [diff] [blame] | 3061 | * fc_timeout_fail_rport_io - Timeout handler for a fast io failing on a disconnected SCSI target. |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 3062 | * @work: rport to terminate io on. |
James Smart | 0f29b96 | 2006-08-18 17:33:29 -0400 | [diff] [blame] | 3063 | * |
| 3064 | * Notes: Only requests the failure of the io, not that all are flushed |
| 3065 | * prior to returning. |
Rob Landley | eb44820 | 2007-11-03 13:30:39 -0500 | [diff] [blame] | 3066 | */ |
James Smart | 0f29b96 | 2006-08-18 17:33:29 -0400 | [diff] [blame] | 3067 | static void |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 3068 | fc_timeout_fail_rport_io(struct work_struct *work) |
James Smart | 0f29b96 | 2006-08-18 17:33:29 -0400 | [diff] [blame] | 3069 | { |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 3070 | struct fc_rport *rport = |
| 3071 | container_of(work, struct fc_rport, fail_io_work.work); |
James Smart | 0f29b96 | 2006-08-18 17:33:29 -0400 | [diff] [blame] | 3072 | |
| 3073 | if (rport->port_state != FC_PORTSTATE_BLOCKED) |
| 3074 | return; |
| 3075 | |
Mike Christie | fff9d40 | 2008-08-19 18:45:23 -0500 | [diff] [blame] | 3076 | rport->flags |= FC_RPORT_FAST_FAIL_TIMEDOUT; |
| 3077 | fc_terminate_rport_io(rport); |
James Smart | 0f29b96 | 2006-08-18 17:33:29 -0400 | [diff] [blame] | 3078 | } |
| 3079 | |
| 3080 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3081 | * fc_scsi_scan_rport - called to perform a scsi scan on a remote port. |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 3082 | * @work: remote port to be scanned. |
Rob Landley | eb44820 | 2007-11-03 13:30:39 -0500 | [diff] [blame] | 3083 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3084 | static void |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 3085 | fc_scsi_scan_rport(struct work_struct *work) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3086 | { |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 3087 | struct fc_rport *rport = |
| 3088 | container_of(work, struct fc_rport, scan_work); |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 3089 | struct Scsi_Host *shost = rport_to_shost(rport); |
Christof Schmitt | 03f002f | 2007-08-28 09:31:21 +0200 | [diff] [blame] | 3090 | struct fc_internal *i = to_fc_internal(shost->transportt); |
James.Smart@Emulex.Com | 42e3314 | 2005-12-15 09:56:22 -0500 | [diff] [blame] | 3091 | unsigned long flags; |
| 3092 | |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 3093 | if ((rport->port_state == FC_PORTSTATE_ONLINE) && |
Christof Schmitt | 03f002f | 2007-08-28 09:31:21 +0200 | [diff] [blame] | 3094 | (rport->roles & FC_PORT_ROLE_FCP_TARGET) && |
| 3095 | !(i->f->disable_target_scan)) { |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 3096 | scsi_scan_target(&rport->dev, rport->channel, |
| 3097 | rport->scsi_target_id, SCAN_WILD_CARD, 1); |
James.Smart@Emulex.Com | 42e3314 | 2005-12-15 09:56:22 -0500 | [diff] [blame] | 3098 | } |
James Smart | aedf349 | 2006-04-10 10:14:05 -0400 | [diff] [blame] | 3099 | |
| 3100 | spin_lock_irqsave(shost->host_lock, flags); |
| 3101 | rport->flags &= ~FC_RPORT_SCAN_PENDING; |
James.Smart@Emulex.Com | 42e3314 | 2005-12-15 09:56:22 -0500 | [diff] [blame] | 3102 | spin_unlock_irqrestore(shost->host_lock, flags); |
| 3103 | } |
| 3104 | |
| 3105 | |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 3106 | /** |
Andrew Vasquez | a30c3f6 | 2008-07-18 08:32:52 -0700 | [diff] [blame] | 3107 | * fc_vport_setup - allocates and creates a FC virtual port. |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 3108 | * @shost: scsi host the virtual port is connected to. |
| 3109 | * @channel: Channel on shost port connected to. |
| 3110 | * @pdev: parent device for vport |
| 3111 | * @ids: The world wide names, FC4 port roles, etc for |
| 3112 | * the virtual port. |
| 3113 | * @ret_vport: The pointer to the created vport. |
| 3114 | * |
| 3115 | * Allocates and creates the vport structure, calls the parent host |
| 3116 | * to instantiate the vport, the completes w/ class and sysfs creation. |
| 3117 | * |
| 3118 | * Notes: |
| 3119 | * This routine assumes no locks are held on entry. |
Rob Landley | eb44820 | 2007-11-03 13:30:39 -0500 | [diff] [blame] | 3120 | */ |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 3121 | static int |
Andrew Vasquez | a30c3f6 | 2008-07-18 08:32:52 -0700 | [diff] [blame] | 3122 | fc_vport_setup(struct Scsi_Host *shost, int channel, struct device *pdev, |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 3123 | struct fc_vport_identifiers *ids, struct fc_vport **ret_vport) |
| 3124 | { |
| 3125 | struct fc_host_attrs *fc_host = shost_to_fc_host(shost); |
| 3126 | struct fc_internal *fci = to_fc_internal(shost->transportt); |
| 3127 | struct fc_vport *vport; |
| 3128 | struct device *dev; |
| 3129 | unsigned long flags; |
| 3130 | size_t size; |
| 3131 | int error; |
| 3132 | |
| 3133 | *ret_vport = NULL; |
| 3134 | |
| 3135 | if ( ! fci->f->vport_create) |
| 3136 | return -ENOENT; |
| 3137 | |
| 3138 | size = (sizeof(struct fc_vport) + fci->f->dd_fcvport_size); |
| 3139 | vport = kzalloc(size, GFP_KERNEL); |
| 3140 | if (unlikely(!vport)) { |
Harvey Harrison | cadbd4a | 2008-07-03 23:47:27 -0700 | [diff] [blame] | 3141 | printk(KERN_ERR "%s: allocation failure\n", __func__); |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 3142 | return -ENOMEM; |
| 3143 | } |
| 3144 | |
| 3145 | vport->vport_state = FC_VPORT_UNKNOWN; |
| 3146 | vport->vport_last_state = FC_VPORT_UNKNOWN; |
| 3147 | vport->node_name = ids->node_name; |
| 3148 | vport->port_name = ids->port_name; |
| 3149 | vport->roles = ids->roles; |
| 3150 | vport->vport_type = ids->vport_type; |
| 3151 | if (fci->f->dd_fcvport_size) |
| 3152 | vport->dd_data = &vport[1]; |
| 3153 | vport->shost = shost; |
| 3154 | vport->channel = channel; |
| 3155 | vport->flags = FC_VPORT_CREATING; |
James Smart | 9ef3e4a | 2007-05-24 19:04:44 -0400 | [diff] [blame] | 3156 | INIT_WORK(&vport->vport_delete_work, fc_vport_sched_delete); |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 3157 | |
| 3158 | spin_lock_irqsave(shost->host_lock, flags); |
| 3159 | |
| 3160 | if (fc_host->npiv_vports_inuse >= fc_host->max_npiv_vports) { |
| 3161 | spin_unlock_irqrestore(shost->host_lock, flags); |
| 3162 | kfree(vport); |
| 3163 | return -ENOSPC; |
| 3164 | } |
| 3165 | fc_host->npiv_vports_inuse++; |
| 3166 | vport->number = fc_host->next_vport_number++; |
| 3167 | list_add_tail(&vport->peers, &fc_host->vports); |
| 3168 | get_device(&shost->shost_gendev); /* for fc_host->vport list */ |
| 3169 | |
| 3170 | spin_unlock_irqrestore(shost->host_lock, flags); |
| 3171 | |
| 3172 | dev = &vport->dev; |
| 3173 | device_initialize(dev); /* takes self reference */ |
| 3174 | dev->parent = get_device(pdev); /* takes parent reference */ |
| 3175 | dev->release = fc_vport_dev_release; |
Kay Sievers | 71610f5 | 2008-12-03 22:41:36 +0100 | [diff] [blame] | 3176 | dev_set_name(dev, "vport-%d:%d-%d", |
| 3177 | shost->host_no, channel, vport->number); |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 3178 | transport_setup_device(dev); |
| 3179 | |
| 3180 | error = device_add(dev); |
| 3181 | if (error) { |
| 3182 | printk(KERN_ERR "FC Virtual Port device_add failed\n"); |
| 3183 | goto delete_vport; |
| 3184 | } |
| 3185 | transport_add_device(dev); |
| 3186 | transport_configure_device(dev); |
| 3187 | |
| 3188 | error = fci->f->vport_create(vport, ids->disable); |
| 3189 | if (error) { |
| 3190 | printk(KERN_ERR "FC Virtual Port LLDD Create failed\n"); |
| 3191 | goto delete_vport_all; |
| 3192 | } |
| 3193 | |
| 3194 | /* |
| 3195 | * if the parent isn't the physical adapter's Scsi_Host, ensure |
| 3196 | * the Scsi_Host at least contains ia symlink to the vport. |
| 3197 | */ |
| 3198 | if (pdev != &shost->shost_gendev) { |
| 3199 | error = sysfs_create_link(&shost->shost_gendev.kobj, |
Kay Sievers | 71610f5 | 2008-12-03 22:41:36 +0100 | [diff] [blame] | 3200 | &dev->kobj, dev_name(dev)); |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 3201 | if (error) |
| 3202 | printk(KERN_ERR |
| 3203 | "%s: Cannot create vport symlinks for " |
| 3204 | "%s, err=%d\n", |
Kay Sievers | 71610f5 | 2008-12-03 22:41:36 +0100 | [diff] [blame] | 3205 | __func__, dev_name(dev), error); |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 3206 | } |
| 3207 | spin_lock_irqsave(shost->host_lock, flags); |
| 3208 | vport->flags &= ~FC_VPORT_CREATING; |
| 3209 | spin_unlock_irqrestore(shost->host_lock, flags); |
| 3210 | |
| 3211 | dev_printk(KERN_NOTICE, pdev, |
Kay Sievers | 71610f5 | 2008-12-03 22:41:36 +0100 | [diff] [blame] | 3212 | "%s created via shost%d channel %d\n", dev_name(dev), |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 3213 | shost->host_no, channel); |
| 3214 | |
| 3215 | *ret_vport = vport; |
| 3216 | |
| 3217 | return 0; |
| 3218 | |
| 3219 | delete_vport_all: |
| 3220 | transport_remove_device(dev); |
| 3221 | device_del(dev); |
| 3222 | delete_vport: |
| 3223 | transport_destroy_device(dev); |
| 3224 | spin_lock_irqsave(shost->host_lock, flags); |
| 3225 | list_del(&vport->peers); |
| 3226 | put_device(&shost->shost_gendev); /* for fc_host->vport list */ |
| 3227 | fc_host->npiv_vports_inuse--; |
| 3228 | spin_unlock_irqrestore(shost->host_lock, flags); |
| 3229 | put_device(dev->parent); |
| 3230 | kfree(vport); |
| 3231 | |
| 3232 | return error; |
| 3233 | } |
| 3234 | |
Andrew Vasquez | a30c3f6 | 2008-07-18 08:32:52 -0700 | [diff] [blame] | 3235 | /** |
| 3236 | * fc_vport_create - Admin App or LLDD requests creation of a vport |
| 3237 | * @shost: scsi host the virtual port is connected to. |
| 3238 | * @channel: channel on shost port connected to. |
| 3239 | * @ids: The world wide names, FC4 port roles, etc for |
| 3240 | * the virtual port. |
| 3241 | * |
| 3242 | * Notes: |
| 3243 | * This routine assumes no locks are held on entry. |
| 3244 | */ |
| 3245 | struct fc_vport * |
| 3246 | fc_vport_create(struct Scsi_Host *shost, int channel, |
| 3247 | struct fc_vport_identifiers *ids) |
| 3248 | { |
| 3249 | int stat; |
| 3250 | struct fc_vport *vport; |
| 3251 | |
| 3252 | stat = fc_vport_setup(shost, channel, &shost->shost_gendev, |
| 3253 | ids, &vport); |
| 3254 | return stat ? NULL : vport; |
| 3255 | } |
| 3256 | EXPORT_SYMBOL(fc_vport_create); |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 3257 | |
| 3258 | /** |
| 3259 | * fc_vport_terminate - Admin App or LLDD requests termination of a vport |
| 3260 | * @vport: fc_vport to be terminated |
| 3261 | * |
| 3262 | * Calls the LLDD vport_delete() function, then deallocates and removes |
| 3263 | * the vport from the shost and object tree. |
| 3264 | * |
| 3265 | * Notes: |
| 3266 | * This routine assumes no locks are held on entry. |
Rob Landley | eb44820 | 2007-11-03 13:30:39 -0500 | [diff] [blame] | 3267 | */ |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 3268 | int |
| 3269 | fc_vport_terminate(struct fc_vport *vport) |
| 3270 | { |
| 3271 | struct Scsi_Host *shost = vport_to_shost(vport); |
| 3272 | struct fc_host_attrs *fc_host = shost_to_fc_host(shost); |
| 3273 | struct fc_internal *i = to_fc_internal(shost->transportt); |
| 3274 | struct device *dev = &vport->dev; |
| 3275 | unsigned long flags; |
| 3276 | int stat; |
| 3277 | |
| 3278 | spin_lock_irqsave(shost->host_lock, flags); |
| 3279 | if (vport->flags & FC_VPORT_CREATING) { |
| 3280 | spin_unlock_irqrestore(shost->host_lock, flags); |
| 3281 | return -EBUSY; |
| 3282 | } |
| 3283 | if (vport->flags & (FC_VPORT_DEL)) { |
| 3284 | spin_unlock_irqrestore(shost->host_lock, flags); |
| 3285 | return -EALREADY; |
| 3286 | } |
| 3287 | vport->flags |= FC_VPORT_DELETING; |
| 3288 | spin_unlock_irqrestore(shost->host_lock, flags); |
| 3289 | |
| 3290 | if (i->f->vport_delete) |
| 3291 | stat = i->f->vport_delete(vport); |
| 3292 | else |
| 3293 | stat = -ENOENT; |
| 3294 | |
| 3295 | spin_lock_irqsave(shost->host_lock, flags); |
| 3296 | vport->flags &= ~FC_VPORT_DELETING; |
| 3297 | if (!stat) { |
| 3298 | vport->flags |= FC_VPORT_DELETED; |
| 3299 | list_del(&vport->peers); |
| 3300 | fc_host->npiv_vports_inuse--; |
| 3301 | put_device(&shost->shost_gendev); /* for fc_host->vport list */ |
| 3302 | } |
| 3303 | spin_unlock_irqrestore(shost->host_lock, flags); |
| 3304 | |
| 3305 | if (stat) |
| 3306 | return stat; |
| 3307 | |
| 3308 | if (dev->parent != &shost->shost_gendev) |
Kay Sievers | 71610f5 | 2008-12-03 22:41:36 +0100 | [diff] [blame] | 3309 | sysfs_remove_link(&shost->shost_gendev.kobj, dev_name(dev)); |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 3310 | transport_remove_device(dev); |
| 3311 | device_del(dev); |
| 3312 | transport_destroy_device(dev); |
| 3313 | |
| 3314 | /* |
| 3315 | * Removing our self-reference should mean our |
| 3316 | * release function gets called, which will drop the remaining |
| 3317 | * parent reference and free the data structure. |
| 3318 | */ |
| 3319 | put_device(dev); /* for self-reference */ |
| 3320 | |
| 3321 | return 0; /* SUCCESS */ |
| 3322 | } |
| 3323 | EXPORT_SYMBOL(fc_vport_terminate); |
| 3324 | |
James Smart | 9ef3e4a | 2007-05-24 19:04:44 -0400 | [diff] [blame] | 3325 | /** |
| 3326 | * fc_vport_sched_delete - workq-based delete request for a vport |
James Smart | 9ef3e4a | 2007-05-24 19:04:44 -0400 | [diff] [blame] | 3327 | * @work: vport to be deleted. |
Rob Landley | eb44820 | 2007-11-03 13:30:39 -0500 | [diff] [blame] | 3328 | */ |
James Smart | 9ef3e4a | 2007-05-24 19:04:44 -0400 | [diff] [blame] | 3329 | static void |
| 3330 | fc_vport_sched_delete(struct work_struct *work) |
| 3331 | { |
| 3332 | struct fc_vport *vport = |
| 3333 | container_of(work, struct fc_vport, vport_delete_work); |
| 3334 | int stat; |
James Smart | a53eb5e | 2007-04-27 12:41:09 -0400 | [diff] [blame] | 3335 | |
James Smart | 9ef3e4a | 2007-05-24 19:04:44 -0400 | [diff] [blame] | 3336 | stat = fc_vport_terminate(vport); |
| 3337 | if (stat) |
| 3338 | dev_printk(KERN_ERR, vport->dev.parent, |
| 3339 | "%s: %s could not be deleted created via " |
Harvey Harrison | cadbd4a | 2008-07-03 23:47:27 -0700 | [diff] [blame] | 3340 | "shost%d channel %d - error %d\n", __func__, |
Kay Sievers | 71610f5 | 2008-12-03 22:41:36 +0100 | [diff] [blame] | 3341 | dev_name(&vport->dev), vport->shost->host_no, |
James Smart | 9ef3e4a | 2007-05-24 19:04:44 -0400 | [diff] [blame] | 3342 | vport->channel, stat); |
| 3343 | } |
| 3344 | |
| 3345 | |
| 3346 | /* Original Author: Martin Hicks */ |
| 3347 | MODULE_AUTHOR("James Smart"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3348 | MODULE_DESCRIPTION("FC Transport Attributes"); |
| 3349 | MODULE_LICENSE("GPL"); |
| 3350 | |
| 3351 | module_init(fc_transport_init); |
| 3352 | module_exit(fc_transport_exit); |