Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 2 | * zfcp device driver |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3 | * |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 4 | * Implementation of FSF commands. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5 | * |
Christof Schmitt | 615f59e | 2010-02-17 11:18:56 +0100 | [diff] [blame] | 6 | * Copyright IBM Corporation 2002, 2010 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | */ |
| 8 | |
Christof Schmitt | ecf39d4 | 2008-12-25 13:39:53 +0100 | [diff] [blame] | 9 | #define KMSG_COMPONENT "zfcp" |
| 10 | #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt |
| 11 | |
Stefan Raspl | 0997f1c | 2008-10-16 08:23:39 +0200 | [diff] [blame] | 12 | #include <linux/blktrace_api.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 13 | #include <linux/slab.h> |
Christof Schmitt | 9d05ce2 | 2009-11-24 16:54:09 +0100 | [diff] [blame] | 14 | #include <scsi/fc/fc_els.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 15 | #include "zfcp_ext.h" |
Christof Schmitt | 4318e08 | 2009-11-24 16:54:08 +0100 | [diff] [blame] | 16 | #include "zfcp_fc.h" |
Christof Schmitt | dcd20e2 | 2009-08-18 15:43:08 +0200 | [diff] [blame] | 17 | #include "zfcp_dbf.h" |
Christof Schmitt | 34c2b71 | 2010-02-17 11:18:59 +0100 | [diff] [blame] | 18 | #include "zfcp_qdio.h" |
Christof Schmitt | b6bd2fb | 2010-02-17 11:18:50 +0100 | [diff] [blame] | 19 | #include "zfcp_reqlist.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 20 | |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 21 | static void zfcp_fsf_request_timeout_handler(unsigned long data) |
| 22 | { |
| 23 | struct zfcp_adapter *adapter = (struct zfcp_adapter *) data; |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 24 | zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED, |
| 25 | "fsrth_1", NULL); |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 26 | } |
| 27 | |
| 28 | static void zfcp_fsf_start_timer(struct zfcp_fsf_req *fsf_req, |
| 29 | unsigned long timeout) |
| 30 | { |
| 31 | fsf_req->timer.function = zfcp_fsf_request_timeout_handler; |
| 32 | fsf_req->timer.data = (unsigned long) fsf_req->adapter; |
| 33 | fsf_req->timer.expires = jiffies + timeout; |
| 34 | add_timer(&fsf_req->timer); |
| 35 | } |
| 36 | |
| 37 | static void zfcp_fsf_start_erp_timer(struct zfcp_fsf_req *fsf_req) |
| 38 | { |
| 39 | BUG_ON(!fsf_req->erp_action); |
| 40 | fsf_req->timer.function = zfcp_erp_timeout_handler; |
| 41 | fsf_req->timer.data = (unsigned long) fsf_req->erp_action; |
| 42 | fsf_req->timer.expires = jiffies + 30 * HZ; |
| 43 | add_timer(&fsf_req->timer); |
| 44 | } |
| 45 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 46 | /* association between FSF command and FSF QTCB type */ |
| 47 | static u32 fsf_qtcb_type[] = { |
| 48 | [FSF_QTCB_FCP_CMND] = FSF_IO_COMMAND, |
| 49 | [FSF_QTCB_ABORT_FCP_CMND] = FSF_SUPPORT_COMMAND, |
| 50 | [FSF_QTCB_OPEN_PORT_WITH_DID] = FSF_SUPPORT_COMMAND, |
| 51 | [FSF_QTCB_OPEN_LUN] = FSF_SUPPORT_COMMAND, |
| 52 | [FSF_QTCB_CLOSE_LUN] = FSF_SUPPORT_COMMAND, |
| 53 | [FSF_QTCB_CLOSE_PORT] = FSF_SUPPORT_COMMAND, |
| 54 | [FSF_QTCB_CLOSE_PHYSICAL_PORT] = FSF_SUPPORT_COMMAND, |
| 55 | [FSF_QTCB_SEND_ELS] = FSF_SUPPORT_COMMAND, |
| 56 | [FSF_QTCB_SEND_GENERIC] = FSF_SUPPORT_COMMAND, |
| 57 | [FSF_QTCB_EXCHANGE_CONFIG_DATA] = FSF_CONFIG_COMMAND, |
| 58 | [FSF_QTCB_EXCHANGE_PORT_DATA] = FSF_PORT_COMMAND, |
| 59 | [FSF_QTCB_DOWNLOAD_CONTROL_FILE] = FSF_SUPPORT_COMMAND, |
| 60 | [FSF_QTCB_UPLOAD_CONTROL_FILE] = FSF_SUPPORT_COMMAND |
| 61 | }; |
| 62 | |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 63 | static void zfcp_act_eval_err(struct zfcp_adapter *adapter, u32 table) |
| 64 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 65 | u16 subtable = table >> 16; |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 66 | u16 rule = table & 0xffff; |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 67 | const char *act_type[] = { "unknown", "OS", "WWPN", "DID", "LUN" }; |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 68 | |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 69 | if (subtable && subtable < ARRAY_SIZE(act_type)) |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 70 | dev_warn(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 71 | "Access denied according to ACT rule type %s, " |
| 72 | "rule %d\n", act_type[subtable], rule); |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 73 | } |
| 74 | |
| 75 | static void zfcp_fsf_access_denied_port(struct zfcp_fsf_req *req, |
| 76 | struct zfcp_port *port) |
| 77 | { |
| 78 | struct fsf_qtcb_header *header = &req->qtcb->header; |
| 79 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 80 | "Access denied to port 0x%016Lx\n", |
Swen Schillig | 7ba58c9 | 2008-10-01 12:42:18 +0200 | [diff] [blame] | 81 | (unsigned long long)port->wwpn); |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 82 | zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[0]); |
| 83 | zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[1]); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 84 | zfcp_erp_port_access_denied(port, "fspad_1", req); |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 85 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 86 | } |
| 87 | |
| 88 | static void zfcp_fsf_access_denied_unit(struct zfcp_fsf_req *req, |
| 89 | struct zfcp_unit *unit) |
| 90 | { |
| 91 | struct fsf_qtcb_header *header = &req->qtcb->header; |
| 92 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 93 | "Access denied to unit 0x%016Lx on port 0x%016Lx\n", |
Swen Schillig | 7ba58c9 | 2008-10-01 12:42:18 +0200 | [diff] [blame] | 94 | (unsigned long long)unit->fcp_lun, |
| 95 | (unsigned long long)unit->port->wwpn); |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 96 | zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[0]); |
| 97 | zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[1]); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 98 | zfcp_erp_unit_access_denied(unit, "fsuad_1", req); |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 99 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 100 | } |
| 101 | |
| 102 | static void zfcp_fsf_class_not_supp(struct zfcp_fsf_req *req) |
| 103 | { |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 104 | dev_err(&req->adapter->ccw_device->dev, "FCP device not " |
| 105 | "operational because of an unsupported FC class\n"); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 106 | zfcp_erp_adapter_shutdown(req->adapter, 0, "fscns_1", req); |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 107 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 108 | } |
| 109 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 110 | /** |
| 111 | * zfcp_fsf_req_free - free memory used by fsf request |
| 112 | * @fsf_req: pointer to struct zfcp_fsf_req |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 113 | */ |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 114 | void zfcp_fsf_req_free(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 115 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 116 | if (likely(req->pool)) { |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 117 | if (likely(req->qtcb)) |
| 118 | mempool_free(req->qtcb, req->adapter->pool.qtcb_pool); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 119 | mempool_free(req, req->pool); |
Heiko Carstens | dd52e0e | 2006-09-18 22:28:49 +0200 | [diff] [blame] | 120 | return; |
| 121 | } |
| 122 | |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 123 | if (likely(req->qtcb)) |
| 124 | kmem_cache_free(zfcp_data.qtcb_cache, req->qtcb); |
| 125 | kfree(req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 126 | } |
| 127 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 128 | static void zfcp_fsf_status_read_port_closed(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 129 | { |
Swen Schillig | ecf0c77 | 2009-11-24 16:53:58 +0100 | [diff] [blame] | 130 | unsigned long flags; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 131 | struct fsf_status_read_buffer *sr_buf = req->data; |
| 132 | struct zfcp_adapter *adapter = req->adapter; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 133 | struct zfcp_port *port; |
Christof Schmitt | 800c0ca | 2009-11-24 16:54:12 +0100 | [diff] [blame] | 134 | int d_id = ntoh24(sr_buf->d_id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 135 | |
Swen Schillig | ecf0c77 | 2009-11-24 16:53:58 +0100 | [diff] [blame] | 136 | read_lock_irqsave(&adapter->port_list_lock, flags); |
| 137 | list_for_each_entry(port, &adapter->port_list, list) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 138 | if (port->d_id == d_id) { |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 139 | zfcp_erp_port_reopen(port, 0, "fssrpc1", req); |
Swen Schillig | ecf0c77 | 2009-11-24 16:53:58 +0100 | [diff] [blame] | 140 | break; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 141 | } |
Swen Schillig | ecf0c77 | 2009-11-24 16:53:58 +0100 | [diff] [blame] | 142 | read_unlock_irqrestore(&adapter->port_list_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 143 | } |
| 144 | |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 145 | static void zfcp_fsf_link_down_info_eval(struct zfcp_fsf_req *req, char *id, |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 146 | struct fsf_link_down_info *link_down) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 147 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 148 | struct zfcp_adapter *adapter = req->adapter; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 149 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 150 | if (atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED) |
| 151 | return; |
| 152 | |
| 153 | atomic_set_mask(ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED, &adapter->status); |
Christof Schmitt | 7093293 | 2009-04-17 15:08:15 +0200 | [diff] [blame] | 154 | |
Christof Schmitt | a2fa0ae | 2009-03-02 13:09:08 +0100 | [diff] [blame] | 155 | zfcp_scsi_schedule_rports_block(adapter); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 156 | |
| 157 | if (!link_down) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 158 | goto out; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 159 | |
| 160 | switch (link_down->error_code) { |
| 161 | case FSF_PSQ_LINK_NO_LIGHT: |
| 162 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 163 | "There is no light signal from the local " |
| 164 | "fibre channel cable\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 165 | break; |
| 166 | case FSF_PSQ_LINK_WRAP_PLUG: |
| 167 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 168 | "There is a wrap plug instead of a fibre " |
| 169 | "channel cable\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 170 | break; |
| 171 | case FSF_PSQ_LINK_NO_FCP: |
| 172 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 173 | "The adjacent fibre channel node does not " |
| 174 | "support FCP\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 175 | break; |
| 176 | case FSF_PSQ_LINK_FIRMWARE_UPDATE: |
| 177 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 178 | "The FCP device is suspended because of a " |
| 179 | "firmware update\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 180 | break; |
| 181 | case FSF_PSQ_LINK_INVALID_WWPN: |
| 182 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 183 | "The FCP device detected a WWPN that is " |
| 184 | "duplicate or not valid\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 185 | break; |
| 186 | case FSF_PSQ_LINK_NO_NPIV_SUPPORT: |
| 187 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 188 | "The fibre channel fabric does not support NPIV\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 189 | break; |
| 190 | case FSF_PSQ_LINK_NO_FCP_RESOURCES: |
| 191 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 192 | "The FCP adapter cannot support more NPIV ports\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 193 | break; |
| 194 | case FSF_PSQ_LINK_NO_FABRIC_RESOURCES: |
| 195 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 196 | "The adjacent switch cannot support " |
| 197 | "more NPIV ports\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 198 | break; |
| 199 | case FSF_PSQ_LINK_FABRIC_LOGIN_UNABLE: |
| 200 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 201 | "The FCP adapter could not log in to the " |
| 202 | "fibre channel fabric\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 203 | break; |
| 204 | case FSF_PSQ_LINK_WWPN_ASSIGNMENT_CORRUPTED: |
| 205 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 206 | "The WWPN assignment file on the FCP adapter " |
| 207 | "has been damaged\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 208 | break; |
| 209 | case FSF_PSQ_LINK_MODE_TABLE_CURRUPTED: |
| 210 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 211 | "The mode table on the FCP adapter " |
| 212 | "has been damaged\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 213 | break; |
| 214 | case FSF_PSQ_LINK_NO_WWPN_ASSIGNMENT: |
| 215 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 216 | "All NPIV ports on the FCP adapter have " |
| 217 | "been assigned\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 218 | break; |
| 219 | default: |
| 220 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 221 | "The link between the FCP adapter and " |
| 222 | "the FC fabric is down\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 223 | } |
| 224 | out: |
| 225 | zfcp_erp_adapter_failed(adapter, id, req); |
| 226 | } |
| 227 | |
| 228 | static void zfcp_fsf_status_read_link_down(struct zfcp_fsf_req *req) |
| 229 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 230 | struct fsf_status_read_buffer *sr_buf = req->data; |
| 231 | struct fsf_link_down_info *ldi = |
| 232 | (struct fsf_link_down_info *) &sr_buf->payload; |
| 233 | |
| 234 | switch (sr_buf->status_subtype) { |
| 235 | case FSF_STATUS_READ_SUB_NO_PHYSICAL_LINK: |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 236 | zfcp_fsf_link_down_info_eval(req, "fssrld1", ldi); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 237 | break; |
| 238 | case FSF_STATUS_READ_SUB_FDISC_FAILED: |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 239 | zfcp_fsf_link_down_info_eval(req, "fssrld2", ldi); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 240 | break; |
| 241 | case FSF_STATUS_READ_SUB_FIRMWARE_UPDATE: |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 242 | zfcp_fsf_link_down_info_eval(req, "fssrld3", NULL); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 243 | }; |
| 244 | } |
| 245 | |
| 246 | static void zfcp_fsf_status_read_handler(struct zfcp_fsf_req *req) |
| 247 | { |
| 248 | struct zfcp_adapter *adapter = req->adapter; |
| 249 | struct fsf_status_read_buffer *sr_buf = req->data; |
| 250 | |
| 251 | if (req->status & ZFCP_STATUS_FSFREQ_DISMISSED) { |
Swen Schillig | 5771710 | 2009-08-18 15:43:21 +0200 | [diff] [blame] | 252 | zfcp_dbf_hba_fsf_unsol("dism", adapter->dbf, sr_buf); |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 253 | mempool_free(sr_buf, adapter->pool.status_read_data); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 254 | zfcp_fsf_req_free(req); |
| 255 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 256 | } |
| 257 | |
Swen Schillig | 5771710 | 2009-08-18 15:43:21 +0200 | [diff] [blame] | 258 | zfcp_dbf_hba_fsf_unsol("read", adapter->dbf, sr_buf); |
Maxim Shchetynin | 8a36e45 | 2005-09-13 21:50:38 +0200 | [diff] [blame] | 259 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 260 | switch (sr_buf->status_type) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 261 | case FSF_STATUS_READ_PORT_CLOSED: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 262 | zfcp_fsf_status_read_port_closed(req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 263 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 264 | case FSF_STATUS_READ_INCOMING_ELS: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 265 | zfcp_fc_incoming_els(req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 266 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 267 | case FSF_STATUS_READ_SENSE_DATA_AVAIL: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 268 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 269 | case FSF_STATUS_READ_BIT_ERROR_THRESHOLD: |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 270 | dev_warn(&adapter->ccw_device->dev, |
| 271 | "The error threshold for checksum statistics " |
| 272 | "has been exceeded\n"); |
Swen Schillig | 5771710 | 2009-08-18 15:43:21 +0200 | [diff] [blame] | 273 | zfcp_dbf_hba_berr(adapter->dbf, req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 274 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 275 | case FSF_STATUS_READ_LINK_DOWN: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 276 | zfcp_fsf_status_read_link_down(req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 277 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 278 | case FSF_STATUS_READ_LINK_UP: |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 279 | dev_info(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 280 | "The local link has been restored\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 281 | /* All ports should be marked as ready to run again */ |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 282 | zfcp_erp_modify_adapter_status(adapter, "fssrh_1", NULL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 283 | ZFCP_STATUS_COMMON_RUNNING, |
| 284 | ZFCP_SET); |
| 285 | zfcp_erp_adapter_reopen(adapter, |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 286 | ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED | |
| 287 | ZFCP_STATUS_COMMON_ERP_FAILED, |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 288 | "fssrh_2", req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 289 | break; |
Maxim Shchetynin | 9eb69af | 2006-01-05 09:56:47 +0100 | [diff] [blame] | 290 | case FSF_STATUS_READ_NOTIFICATION_LOST: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 291 | if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_ACT_UPDATED) |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 292 | zfcp_erp_adapter_access_changed(adapter, "fssrh_3", |
| 293 | req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 294 | if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_INCOMING_ELS) |
Swen Schillig | 9eae07e | 2009-11-24 16:54:06 +0100 | [diff] [blame] | 295 | queue_work(adapter->work_queue, &adapter->scan_work); |
Maxim Shchetynin | 9eb69af | 2006-01-05 09:56:47 +0100 | [diff] [blame] | 296 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 297 | case FSF_STATUS_READ_CFDC_UPDATED: |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 298 | zfcp_erp_adapter_access_changed(adapter, "fssrh_4", req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 299 | break; |
Maxim Shchetynin | aef4a98 | 2005-09-13 21:51:16 +0200 | [diff] [blame] | 300 | case FSF_STATUS_READ_FEATURE_UPDATE_ALERT: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 301 | adapter->adapter_features = sr_buf->payload.word[0]; |
Maxim Shchetynin | aef4a98 | 2005-09-13 21:51:16 +0200 | [diff] [blame] | 302 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 303 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 304 | |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 305 | mempool_free(sr_buf, adapter->pool.status_read_data); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 306 | zfcp_fsf_req_free(req); |
Swen Schillig | d26ab06 | 2008-05-19 12:17:37 +0200 | [diff] [blame] | 307 | |
| 308 | atomic_inc(&adapter->stat_miss); |
Swen Schillig | 4544683 | 2009-08-18 15:43:17 +0200 | [diff] [blame] | 309 | queue_work(adapter->work_queue, &adapter->stat_work); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 310 | } |
| 311 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 312 | static void zfcp_fsf_fsfstatus_qual_eval(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 313 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 314 | switch (req->qtcb->header.fsf_status_qual.word[0]) { |
| 315 | case FSF_SQ_FCP_RSP_AVAILABLE: |
| 316 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: |
| 317 | case FSF_SQ_NO_RETRY_POSSIBLE: |
| 318 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
| 319 | return; |
| 320 | case FSF_SQ_COMMAND_ABORTED: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 321 | break; |
| 322 | case FSF_SQ_NO_RECOM: |
| 323 | dev_err(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 324 | "The FCP adapter reported a problem " |
| 325 | "that cannot be recovered\n"); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 326 | zfcp_erp_adapter_shutdown(req->adapter, 0, "fsfsqe1", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 327 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 328 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 329 | /* all non-return stats set FSFREQ_ERROR*/ |
| 330 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 331 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 332 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 333 | static void zfcp_fsf_fsfstatus_eval(struct zfcp_fsf_req *req) |
| 334 | { |
| 335 | if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) |
| 336 | return; |
Andreas Herrmann | 059c97d | 2005-09-13 21:47:52 +0200 | [diff] [blame] | 337 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 338 | switch (req->qtcb->header.fsf_status) { |
| 339 | case FSF_UNKNOWN_COMMAND: |
| 340 | dev_err(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 341 | "The FCP adapter does not recognize the command 0x%x\n", |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 342 | req->qtcb->header.fsf_command); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 343 | zfcp_erp_adapter_shutdown(req->adapter, 0, "fsfse_1", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 344 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 345 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 346 | case FSF_ADAPTER_STATUS_AVAILABLE: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 347 | zfcp_fsf_fsfstatus_qual_eval(req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 348 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 349 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 350 | } |
| 351 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 352 | static void zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 353 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 354 | struct zfcp_adapter *adapter = req->adapter; |
| 355 | struct fsf_qtcb *qtcb = req->qtcb; |
| 356 | union fsf_prot_status_qual *psq = &qtcb->prefix.prot_status_qual; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 357 | |
Swen Schillig | 5771710 | 2009-08-18 15:43:21 +0200 | [diff] [blame] | 358 | zfcp_dbf_hba_fsf_response(req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 359 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 360 | if (req->status & ZFCP_STATUS_FSFREQ_DISMISSED) { |
Christof Schmitt | 4c571c6 | 2009-11-24 16:54:15 +0100 | [diff] [blame] | 361 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 362 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 363 | } |
| 364 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 365 | switch (qtcb->prefix.prot_status) { |
| 366 | case FSF_PROT_GOOD: |
| 367 | case FSF_PROT_FSF_STATUS_PRESENTED: |
| 368 | return; |
| 369 | case FSF_PROT_QTCB_VERSION_ERROR: |
| 370 | dev_err(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 371 | "QTCB version 0x%x not supported by FCP adapter " |
| 372 | "(0x%x to 0x%x)\n", FSF_QTCB_CURRENT_VERSION, |
| 373 | psq->word[0], psq->word[1]); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 374 | zfcp_erp_adapter_shutdown(adapter, 0, "fspse_1", req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 375 | break; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 376 | case FSF_PROT_ERROR_STATE: |
| 377 | case FSF_PROT_SEQ_NUMB_ERROR: |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 378 | zfcp_erp_adapter_reopen(adapter, 0, "fspse_2", req); |
Christof Schmitt | 4c571c6 | 2009-11-24 16:54:15 +0100 | [diff] [blame] | 379 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 380 | break; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 381 | case FSF_PROT_UNSUPP_QTCB_TYPE: |
| 382 | dev_err(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 383 | "The QTCB type is not supported by the FCP adapter\n"); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 384 | zfcp_erp_adapter_shutdown(adapter, 0, "fspse_3", req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 385 | break; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 386 | case FSF_PROT_HOST_CONNECTION_INITIALIZING: |
| 387 | atomic_set_mask(ZFCP_STATUS_ADAPTER_HOST_CON_INIT, |
| 388 | &adapter->status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 389 | break; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 390 | case FSF_PROT_DUPLICATE_REQUEST_ID: |
| 391 | dev_err(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 392 | "0x%Lx is an ambiguous request identifier\n", |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 393 | (unsigned long long)qtcb->bottom.support.req_handle); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 394 | zfcp_erp_adapter_shutdown(adapter, 0, "fspse_4", req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 395 | break; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 396 | case FSF_PROT_LINK_DOWN: |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 397 | zfcp_fsf_link_down_info_eval(req, "fspse_5", |
| 398 | &psq->link_down_info); |
Christof Schmitt | 452b505 | 2010-02-17 11:18:51 +0100 | [diff] [blame] | 399 | /* go through reopen to flush pending requests */ |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 400 | zfcp_erp_adapter_reopen(adapter, 0, "fspse_6", req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 401 | break; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 402 | case FSF_PROT_REEST_QUEUE: |
| 403 | /* All ports should be marked as ready to run again */ |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 404 | zfcp_erp_modify_adapter_status(adapter, "fspse_7", NULL, |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 405 | ZFCP_STATUS_COMMON_RUNNING, |
| 406 | ZFCP_SET); |
| 407 | zfcp_erp_adapter_reopen(adapter, |
| 408 | ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED | |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 409 | ZFCP_STATUS_COMMON_ERP_FAILED, |
| 410 | "fspse_8", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 411 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 412 | default: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 413 | dev_err(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 414 | "0x%x is not a valid transfer protocol status\n", |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 415 | qtcb->prefix.prot_status); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 416 | zfcp_erp_adapter_shutdown(adapter, 0, "fspse_9", req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 417 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 418 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 419 | } |
| 420 | |
| 421 | /** |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 422 | * zfcp_fsf_req_complete - process completion of a FSF request |
| 423 | * @fsf_req: The FSF request that has been completed. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 424 | * |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 425 | * When a request has been completed either from the FCP adapter, |
| 426 | * or it has been dismissed due to a queue shutdown, this function |
| 427 | * is called to process the completion status and trigger further |
| 428 | * events related to the FSF request. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 429 | */ |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 430 | static void zfcp_fsf_req_complete(struct zfcp_fsf_req *req) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 431 | { |
| 432 | if (unlikely(req->fsf_command == FSF_QTCB_UNSOLICITED_STATUS)) { |
| 433 | zfcp_fsf_status_read_handler(req); |
| 434 | return; |
| 435 | } |
| 436 | |
| 437 | del_timer(&req->timer); |
| 438 | zfcp_fsf_protstatus_eval(req); |
| 439 | zfcp_fsf_fsfstatus_eval(req); |
| 440 | req->handler(req); |
| 441 | |
| 442 | if (req->erp_action) |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 443 | zfcp_erp_notify(req->erp_action, 0); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 444 | |
| 445 | if (likely(req->status & ZFCP_STATUS_FSFREQ_CLEANUP)) |
| 446 | zfcp_fsf_req_free(req); |
| 447 | else |
Swen Schillig | 058b864 | 2009-08-18 15:43:14 +0200 | [diff] [blame] | 448 | complete(&req->completion); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 449 | } |
| 450 | |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 451 | /** |
| 452 | * zfcp_fsf_req_dismiss_all - dismiss all fsf requests |
| 453 | * @adapter: pointer to struct zfcp_adapter |
| 454 | * |
| 455 | * Never ever call this without shutting down the adapter first. |
| 456 | * Otherwise the adapter would continue using and corrupting s390 storage. |
| 457 | * Included BUG_ON() call to ensure this is done. |
| 458 | * ERP is supposed to be the only user of this function. |
| 459 | */ |
| 460 | void zfcp_fsf_req_dismiss_all(struct zfcp_adapter *adapter) |
| 461 | { |
| 462 | struct zfcp_fsf_req *req, *tmp; |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 463 | LIST_HEAD(remove_queue); |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 464 | |
| 465 | BUG_ON(atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP); |
Christof Schmitt | b6bd2fb | 2010-02-17 11:18:50 +0100 | [diff] [blame] | 466 | zfcp_reqlist_move(adapter->req_list, &remove_queue); |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 467 | |
| 468 | list_for_each_entry_safe(req, tmp, &remove_queue, list) { |
| 469 | list_del(&req->list); |
| 470 | req->status |= ZFCP_STATUS_FSFREQ_DISMISSED; |
| 471 | zfcp_fsf_req_complete(req); |
| 472 | } |
| 473 | } |
| 474 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 475 | static int zfcp_fsf_exchange_config_evaluate(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 476 | { |
Christof Schmitt | 9d05ce2 | 2009-11-24 16:54:09 +0100 | [diff] [blame] | 477 | struct fsf_qtcb_bottom_config *bottom = &req->qtcb->bottom.config; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 478 | struct zfcp_adapter *adapter = req->adapter; |
Andreas Herrmann | 13e1e1f | 2005-09-19 16:56:17 +0200 | [diff] [blame] | 479 | struct Scsi_Host *shost = adapter->scsi_host; |
Christof Schmitt | 9d05ce2 | 2009-11-24 16:54:09 +0100 | [diff] [blame] | 480 | struct fc_els_flogi *nsp, *plogi; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 481 | |
Christof Schmitt | 9d05ce2 | 2009-11-24 16:54:09 +0100 | [diff] [blame] | 482 | /* adjust pointers for missing command code */ |
| 483 | nsp = (struct fc_els_flogi *) ((u8 *)&bottom->nport_serv_param |
| 484 | - sizeof(u32)); |
| 485 | plogi = (struct fc_els_flogi *) ((u8 *)&bottom->plogi_payload |
| 486 | - sizeof(u32)); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 487 | |
| 488 | if (req->data) |
| 489 | memcpy(req->data, bottom, sizeof(*bottom)); |
| 490 | |
Christof Schmitt | 9d05ce2 | 2009-11-24 16:54:09 +0100 | [diff] [blame] | 491 | fc_host_port_name(shost) = nsp->fl_wwpn; |
| 492 | fc_host_node_name(shost) = nsp->fl_wwnn; |
Christof Schmitt | 800c0ca | 2009-11-24 16:54:12 +0100 | [diff] [blame] | 493 | fc_host_port_id(shost) = ntoh24(bottom->s_id); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 494 | fc_host_speed(shost) = bottom->fc_link_speed; |
| 495 | fc_host_supported_classes(shost) = FC_COS_CLASS2 | FC_COS_CLASS3; |
| 496 | |
| 497 | adapter->hydra_version = bottom->adapter_type; |
Christof Schmitt | faf4cd8 | 2010-07-16 15:37:36 +0200 | [diff] [blame] | 498 | adapter->timer_ticks = bottom->timer_interval & ZFCP_FSF_TIMER_INT_MASK; |
Christof Schmitt | 8d88cf3 | 2010-06-21 10:11:33 +0200 | [diff] [blame] | 499 | adapter->stat_read_buf_num = max(bottom->status_read_buf_num, |
| 500 | (u16)FSF_STATUS_READS_RECOM); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 501 | |
| 502 | if (fc_host_permanent_port_name(shost) == -1) |
| 503 | fc_host_permanent_port_name(shost) = fc_host_port_name(shost); |
| 504 | |
| 505 | switch (bottom->fc_topology) { |
| 506 | case FSF_TOPO_P2P: |
Christof Schmitt | 800c0ca | 2009-11-24 16:54:12 +0100 | [diff] [blame] | 507 | adapter->peer_d_id = ntoh24(bottom->peer_d_id); |
Christof Schmitt | 9d05ce2 | 2009-11-24 16:54:09 +0100 | [diff] [blame] | 508 | adapter->peer_wwpn = plogi->fl_wwpn; |
| 509 | adapter->peer_wwnn = plogi->fl_wwnn; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 510 | fc_host_port_type(shost) = FC_PORTTYPE_PTP; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 511 | break; |
| 512 | case FSF_TOPO_FABRIC: |
| 513 | fc_host_port_type(shost) = FC_PORTTYPE_NPORT; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 514 | break; |
| 515 | case FSF_TOPO_AL: |
| 516 | fc_host_port_type(shost) = FC_PORTTYPE_NLPORT; |
Christof Schmitt | dceab65 | 2009-05-15 13:18:18 +0200 | [diff] [blame] | 517 | /* fall through */ |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 518 | default: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 519 | dev_err(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 520 | "Unknown or unsupported arbitrated loop " |
| 521 | "fibre channel topology detected\n"); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 522 | zfcp_erp_adapter_shutdown(adapter, 0, "fsece_1", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 523 | return -EIO; |
| 524 | } |
| 525 | |
| 526 | return 0; |
| 527 | } |
| 528 | |
| 529 | static void zfcp_fsf_exchange_config_data_handler(struct zfcp_fsf_req *req) |
| 530 | { |
| 531 | struct zfcp_adapter *adapter = req->adapter; |
| 532 | struct fsf_qtcb *qtcb = req->qtcb; |
| 533 | struct fsf_qtcb_bottom_config *bottom = &qtcb->bottom.config; |
| 534 | struct Scsi_Host *shost = adapter->scsi_host; |
| 535 | |
| 536 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
| 537 | return; |
| 538 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 539 | adapter->fsf_lic_version = bottom->lic_version; |
Maxim Shchetynin | aef4a98 | 2005-09-13 21:51:16 +0200 | [diff] [blame] | 540 | adapter->adapter_features = bottom->adapter_features; |
| 541 | adapter->connection_features = bottom->connection_features; |
| 6f71d9b | 2005-04-10 23:04:28 -0500 | [diff] [blame] | 542 | adapter->peer_wwpn = 0; |
| 543 | adapter->peer_wwnn = 0; |
| 544 | adapter->peer_d_id = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 545 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 546 | switch (qtcb->header.fsf_status) { |
| 547 | case FSF_GOOD: |
| 548 | if (zfcp_fsf_exchange_config_evaluate(req)) |
| 549 | return; |
Swen Schillig | 52ef11a | 2007-08-28 09:31:09 +0200 | [diff] [blame] | 550 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 551 | if (bottom->max_qtcb_size < sizeof(struct fsf_qtcb)) { |
| 552 | dev_err(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 553 | "FCP adapter maximum QTCB size (%d bytes) " |
| 554 | "is too small\n", |
| 555 | bottom->max_qtcb_size); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 556 | zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh1", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 557 | return; |
| 558 | } |
| 559 | atomic_set_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK, |
| 560 | &adapter->status); |
| 561 | break; |
| 562 | case FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE: |
Andreas Herrmann | 13e1e1f | 2005-09-19 16:56:17 +0200 | [diff] [blame] | 563 | fc_host_node_name(shost) = 0; |
| 564 | fc_host_port_name(shost) = 0; |
| 565 | fc_host_port_id(shost) = 0; |
| 566 | fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; |
Andreas Herrmann | ad757cd | 2006-01-13 02:26:11 +0100 | [diff] [blame] | 567 | fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 568 | adapter->hydra_version = 0; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 569 | |
| 570 | atomic_set_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK, |
| 571 | &adapter->status); |
| 572 | |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 573 | zfcp_fsf_link_down_info_eval(req, "fsecdh2", |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 574 | &qtcb->header.fsf_status_qual.link_down_info); |
| 575 | break; |
| 576 | default: |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 577 | zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh3", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 578 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 579 | } |
| 580 | |
Maxim Shchetynin | aef4a98 | 2005-09-13 21:51:16 +0200 | [diff] [blame] | 581 | if (adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 582 | adapter->hardware_version = bottom->hardware_version; |
Andreas Herrmann | 13e1e1f | 2005-09-19 16:56:17 +0200 | [diff] [blame] | 583 | memcpy(fc_host_serial_number(shost), bottom->serial_number, |
| 584 | min(FC_SERIAL_NUMBER_SIZE, 17)); |
| 585 | EBCASC(fc_host_serial_number(shost), |
| 586 | min(FC_SERIAL_NUMBER_SIZE, 17)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 587 | } |
| 588 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 589 | if (FSF_QTCB_CURRENT_VERSION < bottom->low_qtcb_version) { |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 590 | dev_err(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 591 | "The FCP adapter only supports newer " |
| 592 | "control block versions\n"); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 593 | zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh4", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 594 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 595 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 596 | if (FSF_QTCB_CURRENT_VERSION > bottom->high_qtcb_version) { |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 597 | dev_err(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 598 | "The FCP adapter only supports older " |
| 599 | "control block versions\n"); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 600 | zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh5", req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 601 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 602 | } |
| 603 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 604 | static void zfcp_fsf_exchange_port_evaluate(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 605 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 606 | struct zfcp_adapter *adapter = req->adapter; |
| 607 | struct fsf_qtcb_bottom_port *bottom = &req->qtcb->bottom.port; |
| 608 | struct Scsi_Host *shost = adapter->scsi_host; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 609 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 610 | if (req->data) |
| 611 | memcpy(req->data, bottom, sizeof(*bottom)); |
Andreas Herrmann | 2f8f3ed | 2006-02-11 01:41:50 +0100 | [diff] [blame] | 612 | |
Christof Schmitt | 0282985 | 2009-03-02 13:09:06 +0100 | [diff] [blame] | 613 | if (adapter->connection_features & FSF_FEATURE_NPIV_MODE) { |
Andreas Herrmann | 2f8f3ed | 2006-02-11 01:41:50 +0100 | [diff] [blame] | 614 | fc_host_permanent_port_name(shost) = bottom->wwpn; |
Christof Schmitt | 0282985 | 2009-03-02 13:09:06 +0100 | [diff] [blame] | 615 | fc_host_port_type(shost) = FC_PORTTYPE_NPIV; |
| 616 | } else |
Andreas Herrmann | 2f8f3ed | 2006-02-11 01:41:50 +0100 | [diff] [blame] | 617 | fc_host_permanent_port_name(shost) = fc_host_port_name(shost); |
| 618 | fc_host_maxframe_size(shost) = bottom->maximum_frame_size; |
| 619 | fc_host_supported_speeds(shost) = bottom->supported_speed; |
Christof Schmitt | 2d8e62b | 2010-02-17 11:18:58 +0100 | [diff] [blame] | 620 | memcpy(fc_host_supported_fc4s(shost), bottom->supported_fc4_types, |
| 621 | FC_FC4_LIST_SIZE); |
| 622 | memcpy(fc_host_active_fc4s(shost), bottom->active_fc4_types, |
| 623 | FC_FC4_LIST_SIZE); |
Andreas Herrmann | 2f8f3ed | 2006-02-11 01:41:50 +0100 | [diff] [blame] | 624 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 625 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 626 | static void zfcp_fsf_exchange_port_data_handler(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 627 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 628 | struct fsf_qtcb *qtcb = req->qtcb; |
Andreas Herrmann | 2f8f3ed | 2006-02-11 01:41:50 +0100 | [diff] [blame] | 629 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 630 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 631 | return; |
| 632 | |
Maxim Shchetynin | aef4a98 | 2005-09-13 21:51:16 +0200 | [diff] [blame] | 633 | switch (qtcb->header.fsf_status) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 634 | case FSF_GOOD: |
| 635 | zfcp_fsf_exchange_port_evaluate(req); |
Maxim Shchetynin | aef4a98 | 2005-09-13 21:51:16 +0200 | [diff] [blame] | 636 | break; |
Maxim Shchetynin | aef4a98 | 2005-09-13 21:51:16 +0200 | [diff] [blame] | 637 | case FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 638 | zfcp_fsf_exchange_port_evaluate(req); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 639 | zfcp_fsf_link_down_info_eval(req, "fsepdh1", |
Maxim Shchetynin | aef4a98 | 2005-09-13 21:51:16 +0200 | [diff] [blame] | 640 | &qtcb->header.fsf_status_qual.link_down_info); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 641 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 642 | } |
| 643 | } |
| 644 | |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 645 | static struct zfcp_fsf_req *zfcp_fsf_alloc(mempool_t *pool) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 646 | { |
| 647 | struct zfcp_fsf_req *req; |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 648 | |
| 649 | if (likely(pool)) |
| 650 | req = mempool_alloc(pool, GFP_ATOMIC); |
| 651 | else |
| 652 | req = kmalloc(sizeof(*req), GFP_ATOMIC); |
| 653 | |
| 654 | if (unlikely(!req)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 655 | return NULL; |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 656 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 657 | memset(req, 0, sizeof(*req)); |
Christof Schmitt | 88f2a97 | 2008-11-04 16:35:07 +0100 | [diff] [blame] | 658 | req->pool = pool; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 659 | return req; |
| 660 | } |
| 661 | |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 662 | static struct fsf_qtcb *zfcp_qtcb_alloc(mempool_t *pool) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 663 | { |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 664 | struct fsf_qtcb *qtcb; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 665 | |
| 666 | if (likely(pool)) |
| 667 | qtcb = mempool_alloc(pool, GFP_ATOMIC); |
| 668 | else |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 669 | qtcb = kmem_cache_alloc(zfcp_data.qtcb_cache, GFP_ATOMIC); |
| 670 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 671 | if (unlikely(!qtcb)) |
| 672 | return NULL; |
| 673 | |
| 674 | memset(qtcb, 0, sizeof(*qtcb)); |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 675 | return qtcb; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 676 | } |
| 677 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 678 | static struct zfcp_fsf_req *zfcp_fsf_req_create(struct zfcp_qdio *qdio, |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 679 | u32 fsf_cmd, u32 sbtype, |
| 680 | mempool_t *pool) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 681 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 682 | struct zfcp_adapter *adapter = qdio->adapter; |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 683 | struct zfcp_fsf_req *req = zfcp_fsf_alloc(pool); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 684 | |
| 685 | if (unlikely(!req)) |
Christof Schmitt | 1e9b164 | 2009-07-13 15:06:04 +0200 | [diff] [blame] | 686 | return ERR_PTR(-ENOMEM); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 687 | |
| 688 | if (adapter->req_no == 0) |
| 689 | adapter->req_no++; |
| 690 | |
| 691 | INIT_LIST_HEAD(&req->list); |
| 692 | init_timer(&req->timer); |
Swen Schillig | 058b864 | 2009-08-18 15:43:14 +0200 | [diff] [blame] | 693 | init_completion(&req->completion); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 694 | |
| 695 | req->adapter = adapter; |
| 696 | req->fsf_command = fsf_cmd; |
Christof Schmitt | 52bfb55 | 2009-03-02 13:08:58 +0100 | [diff] [blame] | 697 | req->req_id = adapter->req_no; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 698 | |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 699 | if (likely(fsf_cmd != FSF_QTCB_UNSOLICITED_STATUS)) { |
| 700 | if (likely(pool)) |
| 701 | req->qtcb = zfcp_qtcb_alloc(adapter->pool.qtcb_pool); |
| 702 | else |
| 703 | req->qtcb = zfcp_qtcb_alloc(NULL); |
| 704 | |
| 705 | if (unlikely(!req->qtcb)) { |
| 706 | zfcp_fsf_req_free(req); |
| 707 | return ERR_PTR(-ENOMEM); |
| 708 | } |
| 709 | |
Christof Schmitt | 5bdecd2 | 2010-02-17 11:18:55 +0100 | [diff] [blame] | 710 | req->seq_no = adapter->fsf_req_seq_no; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 711 | req->qtcb->prefix.req_seq_no = adapter->fsf_req_seq_no; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 712 | req->qtcb->prefix.req_id = req->req_id; |
| 713 | req->qtcb->prefix.ulp_info = 26; |
| 714 | req->qtcb->prefix.qtcb_type = fsf_qtcb_type[req->fsf_command]; |
| 715 | req->qtcb->prefix.qtcb_version = FSF_QTCB_CURRENT_VERSION; |
| 716 | req->qtcb->header.req_handle = req->req_id; |
| 717 | req->qtcb->header.fsf_command = req->fsf_command; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 718 | } |
| 719 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 720 | zfcp_qdio_req_init(adapter->qdio, &req->qdio_req, req->req_id, sbtype, |
| 721 | req->qtcb, sizeof(struct fsf_qtcb)); |
| 722 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 723 | return req; |
| 724 | } |
| 725 | |
| 726 | static int zfcp_fsf_req_send(struct zfcp_fsf_req *req) |
| 727 | { |
| 728 | struct zfcp_adapter *adapter = req->adapter; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 729 | struct zfcp_qdio *qdio = adapter->qdio; |
Christof Schmitt | b6bd2fb | 2010-02-17 11:18:50 +0100 | [diff] [blame] | 730 | int with_qtcb = (req->qtcb != NULL); |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 731 | int req_id = req->req_id; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 732 | |
Christof Schmitt | b6bd2fb | 2010-02-17 11:18:50 +0100 | [diff] [blame] | 733 | zfcp_reqlist_add(adapter->req_list, req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 734 | |
Christof Schmitt | 34c2b71 | 2010-02-17 11:18:59 +0100 | [diff] [blame] | 735 | req->qdio_req.qdio_outb_usage = atomic_read(&qdio->req_q.count); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 736 | req->issued = get_clock(); |
Christof Schmitt | 34c2b71 | 2010-02-17 11:18:59 +0100 | [diff] [blame] | 737 | if (zfcp_qdio_send(qdio, &req->qdio_req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 738 | del_timer(&req->timer); |
Christof Schmitt | 3765138 | 2008-11-04 16:35:08 +0100 | [diff] [blame] | 739 | /* lookup request again, list might have changed */ |
Christof Schmitt | b6bd2fb | 2010-02-17 11:18:50 +0100 | [diff] [blame] | 740 | zfcp_reqlist_find_rm(adapter->req_list, req_id); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 741 | zfcp_erp_adapter_reopen(adapter, 0, "fsrs__1", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 742 | return -EIO; |
| 743 | } |
| 744 | |
| 745 | /* Don't increase for unsolicited status */ |
Martin Petermann | 135ea13 | 2009-04-17 15:08:01 +0200 | [diff] [blame] | 746 | if (with_qtcb) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 747 | adapter->fsf_req_seq_no++; |
Christof Schmitt | 52bfb55 | 2009-03-02 13:08:58 +0100 | [diff] [blame] | 748 | adapter->req_no++; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 749 | |
| 750 | return 0; |
| 751 | } |
| 752 | |
| 753 | /** |
| 754 | * zfcp_fsf_status_read - send status read request |
| 755 | * @adapter: pointer to struct zfcp_adapter |
| 756 | * @req_flags: request flags |
| 757 | * Returns: 0 on success, ERROR otherwise |
| 758 | */ |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 759 | int zfcp_fsf_status_read(struct zfcp_qdio *qdio) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 760 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 761 | struct zfcp_adapter *adapter = qdio->adapter; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 762 | struct zfcp_fsf_req *req; |
| 763 | struct fsf_status_read_buffer *sr_buf; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 764 | int retval = -EIO; |
| 765 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 766 | spin_lock_bh(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 767 | if (zfcp_qdio_sbal_get(qdio)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 768 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 769 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 770 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_UNSOLICITED_STATUS, 0, |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 771 | adapter->pool.status_read_req); |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 772 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 773 | retval = PTR_ERR(req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 774 | goto out; |
| 775 | } |
| 776 | |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 777 | sr_buf = mempool_alloc(adapter->pool.status_read_data, GFP_ATOMIC); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 778 | if (!sr_buf) { |
| 779 | retval = -ENOMEM; |
| 780 | goto failed_buf; |
| 781 | } |
| 782 | memset(sr_buf, 0, sizeof(*sr_buf)); |
| 783 | req->data = sr_buf; |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 784 | |
| 785 | zfcp_qdio_fill_next(qdio, &req->qdio_req, sr_buf, sizeof(*sr_buf)); |
| 786 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 787 | |
| 788 | retval = zfcp_fsf_req_send(req); |
| 789 | if (retval) |
| 790 | goto failed_req_send; |
| 791 | |
| 792 | goto out; |
| 793 | |
| 794 | failed_req_send: |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 795 | mempool_free(sr_buf, adapter->pool.status_read_data); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 796 | failed_buf: |
| 797 | zfcp_fsf_req_free(req); |
Swen Schillig | 5771710 | 2009-08-18 15:43:21 +0200 | [diff] [blame] | 798 | zfcp_dbf_hba_fsf_unsol("fail", adapter->dbf, NULL); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 799 | out: |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 800 | spin_unlock_bh(&qdio->req_q_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 801 | return retval; |
| 802 | } |
| 803 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 804 | static void zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 805 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 806 | struct zfcp_unit *unit = req->data; |
| 807 | union fsf_status_qual *fsq = &req->qtcb->header.fsf_status_qual; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 808 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 809 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
| 810 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 811 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 812 | switch (req->qtcb->header.fsf_status) { |
| 813 | case FSF_PORT_HANDLE_NOT_VALID: |
| 814 | if (fsq->word[0] == fsq->word[1]) { |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 815 | zfcp_erp_adapter_reopen(unit->port->adapter, 0, |
| 816 | "fsafch1", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 817 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 818 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 819 | break; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 820 | case FSF_LUN_HANDLE_NOT_VALID: |
| 821 | if (fsq->word[0] == fsq->word[1]) { |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 822 | zfcp_erp_port_reopen(unit->port, 0, "fsafch2", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 823 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 824 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 825 | break; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 826 | case FSF_FCP_COMMAND_DOES_NOT_EXIST: |
| 827 | req->status |= ZFCP_STATUS_FSFREQ_ABORTNOTNEEDED; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 828 | break; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 829 | case FSF_PORT_BOXED: |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 830 | zfcp_erp_port_boxed(unit->port, "fsafch3", req); |
Christof Schmitt | 4c571c6 | 2009-11-24 16:54:15 +0100 | [diff] [blame] | 831 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 832 | break; |
| 833 | case FSF_LUN_BOXED: |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 834 | zfcp_erp_unit_boxed(unit, "fsafch4", req); |
Christof Schmitt | 4c571c6 | 2009-11-24 16:54:15 +0100 | [diff] [blame] | 835 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 836 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 837 | case FSF_ADAPTER_STATUS_AVAILABLE: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 838 | switch (fsq->word[0]) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 839 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: |
Swen Schillig | 6f53a2d | 2009-08-18 15:43:23 +0200 | [diff] [blame] | 840 | zfcp_fc_test_link(unit->port); |
Christof Schmitt | dceab65 | 2009-05-15 13:18:18 +0200 | [diff] [blame] | 841 | /* fall through */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 842 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 843 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 844 | break; |
| 845 | } |
| 846 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 847 | case FSF_GOOD: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 848 | req->status |= ZFCP_STATUS_FSFREQ_ABORTSUCCEEDED; |
| 849 | break; |
| 850 | } |
| 851 | } |
| 852 | |
| 853 | /** |
| 854 | * zfcp_fsf_abort_fcp_command - abort running SCSI command |
| 855 | * @old_req_id: unsigned long |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 856 | * @unit: pointer to struct zfcp_unit |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 857 | * Returns: pointer to struct zfcp_fsf_req |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 858 | */ |
| 859 | |
| 860 | struct zfcp_fsf_req *zfcp_fsf_abort_fcp_command(unsigned long old_req_id, |
Christof Schmitt | 63caf36 | 2009-03-02 13:09:00 +0100 | [diff] [blame] | 861 | struct zfcp_unit *unit) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 862 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 863 | struct zfcp_fsf_req *req = NULL; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 864 | struct zfcp_qdio *qdio = unit->port->adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 865 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 866 | spin_lock_bh(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 867 | if (zfcp_qdio_sbal_get(qdio)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 868 | goto out; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 869 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_ABORT_FCP_CMND, |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 870 | SBAL_FLAGS0_TYPE_READ, |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 871 | qdio->adapter->pool.scsi_abort); |
Swen Schillig | 633528c | 2008-11-26 18:07:37 +0100 | [diff] [blame] | 872 | if (IS_ERR(req)) { |
| 873 | req = NULL; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 874 | goto out; |
Swen Schillig | 633528c | 2008-11-26 18:07:37 +0100 | [diff] [blame] | 875 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 876 | |
| 877 | if (unlikely(!(atomic_read(&unit->status) & |
| 878 | ZFCP_STATUS_COMMON_UNBLOCKED))) |
| 879 | goto out_error_free; |
| 880 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 881 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 882 | |
| 883 | req->data = unit; |
| 884 | req->handler = zfcp_fsf_abort_fcp_command_handler; |
| 885 | req->qtcb->header.lun_handle = unit->handle; |
| 886 | req->qtcb->header.port_handle = unit->port->handle; |
| 887 | req->qtcb->bottom.support.req_handle = (u64) old_req_id; |
| 888 | |
| 889 | zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT); |
| 890 | if (!zfcp_fsf_req_send(req)) |
| 891 | goto out; |
| 892 | |
| 893 | out_error_free: |
| 894 | zfcp_fsf_req_free(req); |
| 895 | req = NULL; |
| 896 | out: |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 897 | spin_unlock_bh(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 898 | return req; |
| 899 | } |
| 900 | |
| 901 | static void zfcp_fsf_send_ct_handler(struct zfcp_fsf_req *req) |
| 902 | { |
| 903 | struct zfcp_adapter *adapter = req->adapter; |
Christof Schmitt | 7c7dc19 | 2009-11-24 16:54:13 +0100 | [diff] [blame] | 904 | struct zfcp_fsf_ct_els *ct = req->data; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 905 | struct fsf_qtcb_header *header = &req->qtcb->header; |
| 906 | |
Christof Schmitt | 7c7dc19 | 2009-11-24 16:54:13 +0100 | [diff] [blame] | 907 | ct->status = -EINVAL; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 908 | |
| 909 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
| 910 | goto skip_fsfstatus; |
| 911 | |
| 912 | switch (header->fsf_status) { |
| 913 | case FSF_GOOD: |
Swen Schillig | 5771710 | 2009-08-18 15:43:21 +0200 | [diff] [blame] | 914 | zfcp_dbf_san_ct_response(req); |
Christof Schmitt | 7c7dc19 | 2009-11-24 16:54:13 +0100 | [diff] [blame] | 915 | ct->status = 0; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 916 | break; |
| 917 | case FSF_SERVICE_CLASS_NOT_SUPPORTED: |
| 918 | zfcp_fsf_class_not_supp(req); |
| 919 | break; |
| 920 | case FSF_ADAPTER_STATUS_AVAILABLE: |
| 921 | switch (header->fsf_status_qual.word[0]){ |
| 922 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 923 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
| 924 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 925 | break; |
| 926 | } |
| 927 | break; |
| 928 | case FSF_ACCESS_DENIED: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 929 | break; |
| 930 | case FSF_PORT_BOXED: |
Christof Schmitt | 4c571c6 | 2009-11-24 16:54:15 +0100 | [diff] [blame] | 931 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 932 | break; |
| 933 | case FSF_PORT_HANDLE_NOT_VALID: |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 934 | zfcp_erp_adapter_reopen(adapter, 0, "fsscth1", req); |
Christof Schmitt | dceab65 | 2009-05-15 13:18:18 +0200 | [diff] [blame] | 935 | /* fall through */ |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 936 | case FSF_GENERIC_COMMAND_REJECTED: |
| 937 | case FSF_PAYLOAD_SIZE_MISMATCH: |
| 938 | case FSF_REQUEST_SIZE_TOO_LARGE: |
| 939 | case FSF_RESPONSE_SIZE_TOO_LARGE: |
| 940 | case FSF_SBAL_MISMATCH: |
| 941 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 942 | break; |
| 943 | } |
| 944 | |
| 945 | skip_fsfstatus: |
Christof Schmitt | 7c7dc19 | 2009-11-24 16:54:13 +0100 | [diff] [blame] | 946 | if (ct->handler) |
| 947 | ct->handler(ct->handler_data); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 948 | } |
| 949 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 950 | static void zfcp_fsf_setup_ct_els_unchained(struct zfcp_qdio *qdio, |
| 951 | struct zfcp_qdio_req *q_req, |
Christof Schmitt | 426f605 | 2009-07-13 15:06:06 +0200 | [diff] [blame] | 952 | struct scatterlist *sg_req, |
| 953 | struct scatterlist *sg_resp) |
| 954 | { |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 955 | zfcp_qdio_fill_next(qdio, q_req, sg_virt(sg_req), sg_req->length); |
| 956 | zfcp_qdio_fill_next(qdio, q_req, sg_virt(sg_resp), sg_resp->length); |
| 957 | zfcp_qdio_set_sbale_last(qdio, q_req); |
Christof Schmitt | 426f605 | 2009-07-13 15:06:06 +0200 | [diff] [blame] | 958 | } |
| 959 | |
Christof Schmitt | 39eb7e9a | 2008-12-19 16:57:01 +0100 | [diff] [blame] | 960 | static int zfcp_fsf_setup_ct_els_sbals(struct zfcp_fsf_req *req, |
| 961 | struct scatterlist *sg_req, |
Swen Schillig | 01b0475 | 2010-07-16 15:37:37 +0200 | [diff] [blame^] | 962 | struct scatterlist *sg_resp) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 963 | { |
Swen Schillig | 42428f7 | 2009-08-18 15:43:18 +0200 | [diff] [blame] | 964 | struct zfcp_adapter *adapter = req->adapter; |
Swen Schillig | 42428f7 | 2009-08-18 15:43:18 +0200 | [diff] [blame] | 965 | u32 feat = adapter->adapter_features; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 966 | int bytes; |
| 967 | |
Christof Schmitt | 39eb7e9a | 2008-12-19 16:57:01 +0100 | [diff] [blame] | 968 | if (!(feat & FSF_FEATURE_ELS_CT_CHAINED_SBALS)) { |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 969 | if (!zfcp_qdio_sg_one_sbale(sg_req) || |
| 970 | !zfcp_qdio_sg_one_sbale(sg_resp)) |
Christof Schmitt | 39eb7e9a | 2008-12-19 16:57:01 +0100 | [diff] [blame] | 971 | return -EOPNOTSUPP; |
| 972 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 973 | zfcp_fsf_setup_ct_els_unchained(adapter->qdio, &req->qdio_req, |
| 974 | sg_req, sg_resp); |
Christof Schmitt | 426f605 | 2009-07-13 15:06:06 +0200 | [diff] [blame] | 975 | return 0; |
| 976 | } |
| 977 | |
| 978 | /* use single, unchained SBAL if it can hold the request */ |
Swen Schillig | 30b6777 | 2010-06-21 10:11:31 +0200 | [diff] [blame] | 979 | if (zfcp_qdio_sg_one_sbale(sg_req) && zfcp_qdio_sg_one_sbale(sg_resp)) { |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 980 | zfcp_fsf_setup_ct_els_unchained(adapter->qdio, &req->qdio_req, |
| 981 | sg_req, sg_resp); |
Christof Schmitt | 39eb7e9a | 2008-12-19 16:57:01 +0100 | [diff] [blame] | 982 | return 0; |
| 983 | } |
| 984 | |
Swen Schillig | 01b0475 | 2010-07-16 15:37:37 +0200 | [diff] [blame^] | 985 | bytes = zfcp_qdio_sbals_from_sg(adapter->qdio, &req->qdio_req, sg_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 986 | if (bytes <= 0) |
Christof Schmitt | 9072df4 | 2009-07-13 15:06:07 +0200 | [diff] [blame] | 987 | return -EIO; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 988 | req->qtcb->bottom.support.req_buf_length = bytes; |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 989 | zfcp_qdio_skip_to_last_sbale(&req->qdio_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 990 | |
Christof Schmitt | 34c2b71 | 2010-02-17 11:18:59 +0100 | [diff] [blame] | 991 | bytes = zfcp_qdio_sbals_from_sg(adapter->qdio, &req->qdio_req, |
Swen Schillig | 01b0475 | 2010-07-16 15:37:37 +0200 | [diff] [blame^] | 992 | sg_resp); |
Christof Schmitt | b1a5898 | 2009-09-24 10:23:21 +0200 | [diff] [blame] | 993 | req->qtcb->bottom.support.resp_buf_length = bytes; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 994 | if (bytes <= 0) |
Christof Schmitt | 9072df4 | 2009-07-13 15:06:07 +0200 | [diff] [blame] | 995 | return -EIO; |
Christof Schmitt | 98fc4d5 | 2009-08-18 15:43:26 +0200 | [diff] [blame] | 996 | |
Christof Schmitt | b1a5898 | 2009-09-24 10:23:21 +0200 | [diff] [blame] | 997 | return 0; |
| 998 | } |
| 999 | |
| 1000 | static int zfcp_fsf_setup_ct_els(struct zfcp_fsf_req *req, |
| 1001 | struct scatterlist *sg_req, |
| 1002 | struct scatterlist *sg_resp, |
Swen Schillig | 01b0475 | 2010-07-16 15:37:37 +0200 | [diff] [blame^] | 1003 | unsigned int timeout) |
Christof Schmitt | b1a5898 | 2009-09-24 10:23:21 +0200 | [diff] [blame] | 1004 | { |
| 1005 | int ret; |
| 1006 | |
Swen Schillig | 01b0475 | 2010-07-16 15:37:37 +0200 | [diff] [blame^] | 1007 | ret = zfcp_fsf_setup_ct_els_sbals(req, sg_req, sg_resp); |
Christof Schmitt | b1a5898 | 2009-09-24 10:23:21 +0200 | [diff] [blame] | 1008 | if (ret) |
| 1009 | return ret; |
| 1010 | |
Christof Schmitt | 98fc4d5 | 2009-08-18 15:43:26 +0200 | [diff] [blame] | 1011 | /* common settings for ct/gs and els requests */ |
Swen Schillig | 51375ee | 2010-01-14 17:19:02 +0100 | [diff] [blame] | 1012 | if (timeout > 255) |
| 1013 | timeout = 255; /* max value accepted by hardware */ |
Christof Schmitt | 98fc4d5 | 2009-08-18 15:43:26 +0200 | [diff] [blame] | 1014 | req->qtcb->bottom.support.service_class = FSF_CLASS_3; |
Swen Schillig | 51375ee | 2010-01-14 17:19:02 +0100 | [diff] [blame] | 1015 | req->qtcb->bottom.support.timeout = timeout; |
| 1016 | zfcp_fsf_start_timer(req, (timeout + 10) * HZ); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1017 | |
| 1018 | return 0; |
| 1019 | } |
| 1020 | |
| 1021 | /** |
| 1022 | * zfcp_fsf_send_ct - initiate a Generic Service request (FC-GS) |
| 1023 | * @ct: pointer to struct zfcp_send_ct with data for request |
| 1024 | * @pool: if non-null this mempool is used to allocate struct zfcp_fsf_req |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1025 | */ |
Christof Schmitt | 7c7dc19 | 2009-11-24 16:54:13 +0100 | [diff] [blame] | 1026 | int zfcp_fsf_send_ct(struct zfcp_fc_wka_port *wka_port, |
Swen Schillig | 51375ee | 2010-01-14 17:19:02 +0100 | [diff] [blame] | 1027 | struct zfcp_fsf_ct_els *ct, mempool_t *pool, |
| 1028 | unsigned int timeout) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1029 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1030 | struct zfcp_qdio *qdio = wka_port->adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1031 | struct zfcp_fsf_req *req; |
| 1032 | int ret = -EIO; |
| 1033 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1034 | spin_lock_bh(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1035 | if (zfcp_qdio_sbal_get(qdio)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1036 | goto out; |
| 1037 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1038 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_SEND_GENERIC, |
| 1039 | SBAL_FLAGS0_TYPE_WRITE_READ, pool); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1040 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1041 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1042 | ret = PTR_ERR(req); |
| 1043 | goto out; |
| 1044 | } |
| 1045 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1046 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Swen Schillig | 01b0475 | 2010-07-16 15:37:37 +0200 | [diff] [blame^] | 1047 | ret = zfcp_fsf_setup_ct_els(req, ct->req, ct->resp, timeout); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1048 | if (ret) |
| 1049 | goto failed_send; |
| 1050 | |
| 1051 | req->handler = zfcp_fsf_send_ct_handler; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1052 | req->qtcb->header.port_handle = wka_port->handle; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1053 | req->data = ct; |
| 1054 | |
Christof Schmitt | 7c7dc19 | 2009-11-24 16:54:13 +0100 | [diff] [blame] | 1055 | zfcp_dbf_san_ct_request(req, wka_port->d_id); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1056 | |
| 1057 | ret = zfcp_fsf_req_send(req); |
| 1058 | if (ret) |
| 1059 | goto failed_send; |
| 1060 | |
| 1061 | goto out; |
| 1062 | |
| 1063 | failed_send: |
| 1064 | zfcp_fsf_req_free(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1065 | out: |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1066 | spin_unlock_bh(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1067 | return ret; |
| 1068 | } |
| 1069 | |
| 1070 | static void zfcp_fsf_send_els_handler(struct zfcp_fsf_req *req) |
| 1071 | { |
Christof Schmitt | 7c7dc19 | 2009-11-24 16:54:13 +0100 | [diff] [blame] | 1072 | struct zfcp_fsf_ct_els *send_els = req->data; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1073 | struct zfcp_port *port = send_els->port; |
| 1074 | struct fsf_qtcb_header *header = &req->qtcb->header; |
| 1075 | |
| 1076 | send_els->status = -EINVAL; |
| 1077 | |
| 1078 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
| 1079 | goto skip_fsfstatus; |
| 1080 | |
| 1081 | switch (header->fsf_status) { |
| 1082 | case FSF_GOOD: |
Swen Schillig | 5771710 | 2009-08-18 15:43:21 +0200 | [diff] [blame] | 1083 | zfcp_dbf_san_els_response(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1084 | send_els->status = 0; |
| 1085 | break; |
| 1086 | case FSF_SERVICE_CLASS_NOT_SUPPORTED: |
| 1087 | zfcp_fsf_class_not_supp(req); |
| 1088 | break; |
| 1089 | case FSF_ADAPTER_STATUS_AVAILABLE: |
| 1090 | switch (header->fsf_status_qual.word[0]){ |
| 1091 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1092 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
| 1093 | case FSF_SQ_RETRY_IF_POSSIBLE: |
| 1094 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 1095 | break; |
| 1096 | } |
| 1097 | break; |
| 1098 | case FSF_ELS_COMMAND_REJECTED: |
| 1099 | case FSF_PAYLOAD_SIZE_MISMATCH: |
| 1100 | case FSF_REQUEST_SIZE_TOO_LARGE: |
| 1101 | case FSF_RESPONSE_SIZE_TOO_LARGE: |
| 1102 | break; |
| 1103 | case FSF_ACCESS_DENIED: |
Christof Schmitt | dc577d5 | 2009-05-15 13:18:22 +0200 | [diff] [blame] | 1104 | if (port) |
| 1105 | zfcp_fsf_access_denied_port(req, port); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1106 | break; |
| 1107 | case FSF_SBAL_MISMATCH: |
| 1108 | /* should never occure, avoided in zfcp_fsf_send_els */ |
| 1109 | /* fall through */ |
| 1110 | default: |
| 1111 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 1112 | break; |
| 1113 | } |
| 1114 | skip_fsfstatus: |
| 1115 | if (send_els->handler) |
| 1116 | send_els->handler(send_els->handler_data); |
| 1117 | } |
| 1118 | |
| 1119 | /** |
| 1120 | * zfcp_fsf_send_els - initiate an ELS command (FC-FS) |
| 1121 | * @els: pointer to struct zfcp_send_els with data for the command |
| 1122 | */ |
Christof Schmitt | 7c7dc19 | 2009-11-24 16:54:13 +0100 | [diff] [blame] | 1123 | int zfcp_fsf_send_els(struct zfcp_adapter *adapter, u32 d_id, |
Swen Schillig | 51375ee | 2010-01-14 17:19:02 +0100 | [diff] [blame] | 1124 | struct zfcp_fsf_ct_els *els, unsigned int timeout) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1125 | { |
| 1126 | struct zfcp_fsf_req *req; |
Christof Schmitt | 7c7dc19 | 2009-11-24 16:54:13 +0100 | [diff] [blame] | 1127 | struct zfcp_qdio *qdio = adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1128 | int ret = -EIO; |
| 1129 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1130 | spin_lock_bh(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1131 | if (zfcp_qdio_sbal_get(qdio)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1132 | goto out; |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1133 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1134 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_SEND_ELS, |
| 1135 | SBAL_FLAGS0_TYPE_WRITE_READ, NULL); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1136 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1137 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1138 | ret = PTR_ERR(req); |
| 1139 | goto out; |
| 1140 | } |
| 1141 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1142 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Swen Schillig | 01b0475 | 2010-07-16 15:37:37 +0200 | [diff] [blame^] | 1143 | |
| 1144 | zfcp_qdio_sbal_limit(qdio, &req->qdio_req, 2); |
| 1145 | |
| 1146 | ret = zfcp_fsf_setup_ct_els(req, els->req, els->resp, timeout); |
Swen Schillig | 44cc76f | 2008-10-01 12:42:16 +0200 | [diff] [blame] | 1147 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1148 | if (ret) |
| 1149 | goto failed_send; |
| 1150 | |
Christof Schmitt | 7c7dc19 | 2009-11-24 16:54:13 +0100 | [diff] [blame] | 1151 | hton24(req->qtcb->bottom.support.d_id, d_id); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1152 | req->handler = zfcp_fsf_send_els_handler; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1153 | req->data = els; |
| 1154 | |
Swen Schillig | 5771710 | 2009-08-18 15:43:21 +0200 | [diff] [blame] | 1155 | zfcp_dbf_san_els_request(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1156 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1157 | ret = zfcp_fsf_req_send(req); |
| 1158 | if (ret) |
| 1159 | goto failed_send; |
| 1160 | |
| 1161 | goto out; |
| 1162 | |
| 1163 | failed_send: |
| 1164 | zfcp_fsf_req_free(req); |
| 1165 | out: |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1166 | spin_unlock_bh(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1167 | return ret; |
| 1168 | } |
| 1169 | |
| 1170 | int zfcp_fsf_exchange_config_data(struct zfcp_erp_action *erp_action) |
| 1171 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1172 | struct zfcp_fsf_req *req; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1173 | struct zfcp_qdio *qdio = erp_action->adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1174 | int retval = -EIO; |
| 1175 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1176 | spin_lock_bh(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1177 | if (zfcp_qdio_sbal_get(qdio)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1178 | goto out; |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1179 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1180 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_CONFIG_DATA, |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1181 | SBAL_FLAGS0_TYPE_READ, |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1182 | qdio->adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1183 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1184 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1185 | retval = PTR_ERR(req); |
| 1186 | goto out; |
| 1187 | } |
| 1188 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1189 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1190 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1191 | |
| 1192 | req->qtcb->bottom.config.feature_selection = |
| 1193 | FSF_FEATURE_CFDC | |
| 1194 | FSF_FEATURE_LUN_SHARING | |
| 1195 | FSF_FEATURE_NOTIFICATION_LOST | |
| 1196 | FSF_FEATURE_UPDATE_ALERT; |
| 1197 | req->erp_action = erp_action; |
| 1198 | req->handler = zfcp_fsf_exchange_config_data_handler; |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1199 | erp_action->fsf_req_id = req->req_id; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1200 | |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 1201 | zfcp_fsf_start_erp_timer(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1202 | retval = zfcp_fsf_req_send(req); |
| 1203 | if (retval) { |
| 1204 | zfcp_fsf_req_free(req); |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1205 | erp_action->fsf_req_id = 0; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1206 | } |
| 1207 | out: |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1208 | spin_unlock_bh(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1209 | return retval; |
| 1210 | } |
| 1211 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1212 | int zfcp_fsf_exchange_config_data_sync(struct zfcp_qdio *qdio, |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1213 | struct fsf_qtcb_bottom_config *data) |
| 1214 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1215 | struct zfcp_fsf_req *req = NULL; |
| 1216 | int retval = -EIO; |
| 1217 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1218 | spin_lock_bh(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1219 | if (zfcp_qdio_sbal_get(qdio)) |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1220 | goto out_unlock; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1221 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1222 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_CONFIG_DATA, |
| 1223 | SBAL_FLAGS0_TYPE_READ, NULL); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1224 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1225 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1226 | retval = PTR_ERR(req); |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1227 | goto out_unlock; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1228 | } |
| 1229 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1230 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1231 | req->handler = zfcp_fsf_exchange_config_data_handler; |
| 1232 | |
| 1233 | req->qtcb->bottom.config.feature_selection = |
| 1234 | FSF_FEATURE_CFDC | |
| 1235 | FSF_FEATURE_LUN_SHARING | |
| 1236 | FSF_FEATURE_NOTIFICATION_LOST | |
| 1237 | FSF_FEATURE_UPDATE_ALERT; |
| 1238 | |
| 1239 | if (data) |
| 1240 | req->data = data; |
| 1241 | |
| 1242 | zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); |
| 1243 | retval = zfcp_fsf_req_send(req); |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1244 | spin_unlock_bh(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1245 | if (!retval) |
Swen Schillig | 058b864 | 2009-08-18 15:43:14 +0200 | [diff] [blame] | 1246 | wait_for_completion(&req->completion); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1247 | |
| 1248 | zfcp_fsf_req_free(req); |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1249 | return retval; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1250 | |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1251 | out_unlock: |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1252 | spin_unlock_bh(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1253 | return retval; |
| 1254 | } |
| 1255 | |
| 1256 | /** |
| 1257 | * zfcp_fsf_exchange_port_data - request information about local port |
| 1258 | * @erp_action: ERP action for the adapter for which port data is requested |
| 1259 | * Returns: 0 on success, error otherwise |
| 1260 | */ |
| 1261 | int zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action) |
| 1262 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1263 | struct zfcp_qdio *qdio = erp_action->adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1264 | struct zfcp_fsf_req *req; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1265 | int retval = -EIO; |
| 1266 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1267 | if (!(qdio->adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1268 | return -EOPNOTSUPP; |
| 1269 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1270 | spin_lock_bh(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1271 | if (zfcp_qdio_sbal_get(qdio)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1272 | goto out; |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1273 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1274 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_PORT_DATA, |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1275 | SBAL_FLAGS0_TYPE_READ, |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1276 | qdio->adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1277 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1278 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1279 | retval = PTR_ERR(req); |
| 1280 | goto out; |
| 1281 | } |
| 1282 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1283 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1284 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1285 | |
| 1286 | req->handler = zfcp_fsf_exchange_port_data_handler; |
| 1287 | req->erp_action = erp_action; |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1288 | erp_action->fsf_req_id = req->req_id; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1289 | |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 1290 | zfcp_fsf_start_erp_timer(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1291 | retval = zfcp_fsf_req_send(req); |
| 1292 | if (retval) { |
| 1293 | zfcp_fsf_req_free(req); |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1294 | erp_action->fsf_req_id = 0; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1295 | } |
| 1296 | out: |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1297 | spin_unlock_bh(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1298 | return retval; |
| 1299 | } |
| 1300 | |
| 1301 | /** |
| 1302 | * zfcp_fsf_exchange_port_data_sync - request information about local port |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1303 | * @qdio: pointer to struct zfcp_qdio |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1304 | * @data: pointer to struct fsf_qtcb_bottom_port |
| 1305 | * Returns: 0 on success, error otherwise |
| 1306 | */ |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1307 | int zfcp_fsf_exchange_port_data_sync(struct zfcp_qdio *qdio, |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1308 | struct fsf_qtcb_bottom_port *data) |
| 1309 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1310 | struct zfcp_fsf_req *req = NULL; |
| 1311 | int retval = -EIO; |
| 1312 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1313 | if (!(qdio->adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1314 | return -EOPNOTSUPP; |
| 1315 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1316 | spin_lock_bh(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1317 | if (zfcp_qdio_sbal_get(qdio)) |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1318 | goto out_unlock; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1319 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1320 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_PORT_DATA, |
| 1321 | SBAL_FLAGS0_TYPE_READ, NULL); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1322 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1323 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1324 | retval = PTR_ERR(req); |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1325 | goto out_unlock; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1326 | } |
| 1327 | |
| 1328 | if (data) |
| 1329 | req->data = data; |
| 1330 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1331 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1332 | |
| 1333 | req->handler = zfcp_fsf_exchange_port_data_handler; |
| 1334 | zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); |
| 1335 | retval = zfcp_fsf_req_send(req); |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1336 | spin_unlock_bh(&qdio->req_q_lock); |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1337 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1338 | if (!retval) |
Swen Schillig | 058b864 | 2009-08-18 15:43:14 +0200 | [diff] [blame] | 1339 | wait_for_completion(&req->completion); |
| 1340 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1341 | zfcp_fsf_req_free(req); |
| 1342 | |
| 1343 | return retval; |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1344 | |
| 1345 | out_unlock: |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1346 | spin_unlock_bh(&qdio->req_q_lock); |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1347 | return retval; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1348 | } |
| 1349 | |
| 1350 | static void zfcp_fsf_open_port_handler(struct zfcp_fsf_req *req) |
| 1351 | { |
| 1352 | struct zfcp_port *port = req->data; |
| 1353 | struct fsf_qtcb_header *header = &req->qtcb->header; |
Christof Schmitt | 9d05ce2 | 2009-11-24 16:54:09 +0100 | [diff] [blame] | 1354 | struct fc_els_flogi *plogi; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1355 | |
| 1356 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
Martin Petermann | a17c585 | 2009-05-15 13:18:19 +0200 | [diff] [blame] | 1357 | goto out; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1358 | |
| 1359 | switch (header->fsf_status) { |
| 1360 | case FSF_PORT_ALREADY_OPEN: |
| 1361 | break; |
| 1362 | case FSF_ACCESS_DENIED: |
| 1363 | zfcp_fsf_access_denied_port(req, port); |
| 1364 | break; |
| 1365 | case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED: |
| 1366 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 1367 | "Not enough FCP adapter resources to open " |
Swen Schillig | 7ba58c9 | 2008-10-01 12:42:18 +0200 | [diff] [blame] | 1368 | "remote port 0x%016Lx\n", |
| 1369 | (unsigned long long)port->wwpn); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 1370 | zfcp_erp_port_failed(port, "fsoph_1", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1371 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 1372 | break; |
| 1373 | case FSF_ADAPTER_STATUS_AVAILABLE: |
| 1374 | switch (header->fsf_status_qual.word[0]) { |
| 1375 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: |
| 1376 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1377 | case FSF_SQ_NO_RETRY_POSSIBLE: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1378 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 1379 | break; |
| 1380 | } |
| 1381 | break; |
| 1382 | case FSF_GOOD: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1383 | port->handle = header->port_handle; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1384 | atomic_set_mask(ZFCP_STATUS_COMMON_OPEN | |
| 1385 | ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); |
Andreas Herrmann | d736a27b | 2005-06-13 13:23:57 +0200 | [diff] [blame] | 1386 | atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED | |
| 1387 | ZFCP_STATUS_COMMON_ACCESS_BOXED, |
| 1388 | &port->status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1389 | /* check whether D_ID has changed during open */ |
| 1390 | /* |
| 1391 | * FIXME: This check is not airtight, as the FCP channel does |
| 1392 | * not monitor closures of target port connections caused on |
| 1393 | * the remote side. Thus, they might miss out on invalidating |
| 1394 | * locally cached WWPNs (and other N_Port parameters) of gone |
| 1395 | * target ports. So, our heroic attempt to make things safe |
| 1396 | * could be undermined by 'open port' response data tagged with |
| 1397 | * obsolete WWPNs. Another reason to monitor potential |
| 1398 | * connection closures ourself at least (by interpreting |
| 1399 | * incoming ELS' and unsolicited status). It just crosses my |
| 1400 | * mind that one should be able to cross-check by means of |
| 1401 | * another GID_PN straight after a port has been opened. |
| 1402 | * Alternately, an ADISC/PDISC ELS should suffice, as well. |
| 1403 | */ |
Christof Schmitt | 9d05ce2 | 2009-11-24 16:54:09 +0100 | [diff] [blame] | 1404 | plogi = (struct fc_els_flogi *) req->qtcb->bottom.support.els; |
Christof Schmitt | 39eb7e9a | 2008-12-19 16:57:01 +0100 | [diff] [blame] | 1405 | if (req->qtcb->bottom.support.els1_length >= |
Christof Schmitt | 9d05ce2 | 2009-11-24 16:54:09 +0100 | [diff] [blame] | 1406 | FSF_PLOGI_MIN_LEN) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1407 | zfcp_fc_plogi_evaluate(port, plogi); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1408 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1409 | case FSF_UNKNOWN_OP_SUBTYPE: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1410 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1411 | break; |
| 1412 | } |
Martin Petermann | a17c585 | 2009-05-15 13:18:19 +0200 | [diff] [blame] | 1413 | |
| 1414 | out: |
Christof Schmitt | 615f59e | 2010-02-17 11:18:56 +0100 | [diff] [blame] | 1415 | put_device(&port->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1416 | } |
| 1417 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1418 | /** |
| 1419 | * zfcp_fsf_open_port - create and send open port request |
| 1420 | * @erp_action: pointer to struct zfcp_erp_action |
| 1421 | * Returns: 0 on success, error otherwise |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1422 | */ |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1423 | int zfcp_fsf_open_port(struct zfcp_erp_action *erp_action) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1424 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1425 | struct zfcp_qdio *qdio = erp_action->adapter->qdio; |
Martin Petermann | a17c585 | 2009-05-15 13:18:19 +0200 | [diff] [blame] | 1426 | struct zfcp_port *port = erp_action->port; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1427 | struct zfcp_fsf_req *req; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1428 | int retval = -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1429 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1430 | spin_lock_bh(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1431 | if (zfcp_qdio_sbal_get(qdio)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1432 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1433 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1434 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_PORT_WITH_DID, |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1435 | SBAL_FLAGS0_TYPE_READ, |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1436 | qdio->adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1437 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1438 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1439 | retval = PTR_ERR(req); |
| 1440 | goto out; |
| 1441 | } |
| 1442 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1443 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1444 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1445 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1446 | req->handler = zfcp_fsf_open_port_handler; |
Christof Schmitt | 800c0ca | 2009-11-24 16:54:12 +0100 | [diff] [blame] | 1447 | hton24(req->qtcb->bottom.support.d_id, port->d_id); |
Martin Petermann | a17c585 | 2009-05-15 13:18:19 +0200 | [diff] [blame] | 1448 | req->data = port; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1449 | req->erp_action = erp_action; |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1450 | erp_action->fsf_req_id = req->req_id; |
Christof Schmitt | 615f59e | 2010-02-17 11:18:56 +0100 | [diff] [blame] | 1451 | get_device(&port->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1452 | |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 1453 | zfcp_fsf_start_erp_timer(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1454 | retval = zfcp_fsf_req_send(req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1455 | if (retval) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1456 | zfcp_fsf_req_free(req); |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1457 | erp_action->fsf_req_id = 0; |
Christof Schmitt | 615f59e | 2010-02-17 11:18:56 +0100 | [diff] [blame] | 1458 | put_device(&port->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1459 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1460 | out: |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1461 | spin_unlock_bh(&qdio->req_q_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1462 | return retval; |
| 1463 | } |
| 1464 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1465 | static void zfcp_fsf_close_port_handler(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1466 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1467 | struct zfcp_port *port = req->data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1468 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1469 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
Swen Schillig | 44cc76f | 2008-10-01 12:42:16 +0200 | [diff] [blame] | 1470 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1471 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1472 | switch (req->qtcb->header.fsf_status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1473 | case FSF_PORT_HANDLE_NOT_VALID: |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 1474 | zfcp_erp_adapter_reopen(port->adapter, 0, "fscph_1", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1475 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1476 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1477 | case FSF_ADAPTER_STATUS_AVAILABLE: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1478 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1479 | case FSF_GOOD: |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 1480 | zfcp_erp_modify_port_status(port, "fscph_2", req, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1481 | ZFCP_STATUS_COMMON_OPEN, |
| 1482 | ZFCP_CLEAR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1483 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1484 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1485 | } |
| 1486 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1487 | /** |
| 1488 | * zfcp_fsf_close_port - create and send close port request |
| 1489 | * @erp_action: pointer to struct zfcp_erp_action |
| 1490 | * Returns: 0 on success, error otherwise |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1491 | */ |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1492 | int zfcp_fsf_close_port(struct zfcp_erp_action *erp_action) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1493 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1494 | struct zfcp_qdio *qdio = erp_action->adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1495 | struct zfcp_fsf_req *req; |
| 1496 | int retval = -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1497 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1498 | spin_lock_bh(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1499 | if (zfcp_qdio_sbal_get(qdio)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1500 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1501 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1502 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PORT, |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1503 | SBAL_FLAGS0_TYPE_READ, |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1504 | qdio->adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1505 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1506 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1507 | retval = PTR_ERR(req); |
| 1508 | goto out; |
| 1509 | } |
| 1510 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1511 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1512 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1513 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1514 | req->handler = zfcp_fsf_close_port_handler; |
| 1515 | req->data = erp_action->port; |
| 1516 | req->erp_action = erp_action; |
| 1517 | req->qtcb->header.port_handle = erp_action->port->handle; |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1518 | erp_action->fsf_req_id = req->req_id; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1519 | |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 1520 | zfcp_fsf_start_erp_timer(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1521 | retval = zfcp_fsf_req_send(req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1522 | if (retval) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1523 | zfcp_fsf_req_free(req); |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1524 | erp_action->fsf_req_id = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1525 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1526 | out: |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1527 | spin_unlock_bh(&qdio->req_q_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1528 | return retval; |
| 1529 | } |
| 1530 | |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1531 | static void zfcp_fsf_open_wka_port_handler(struct zfcp_fsf_req *req) |
| 1532 | { |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1533 | struct zfcp_fc_wka_port *wka_port = req->data; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1534 | struct fsf_qtcb_header *header = &req->qtcb->header; |
| 1535 | |
| 1536 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) { |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1537 | wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1538 | goto out; |
| 1539 | } |
| 1540 | |
| 1541 | switch (header->fsf_status) { |
| 1542 | case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED: |
| 1543 | dev_warn(&req->adapter->ccw_device->dev, |
| 1544 | "Opening WKA port 0x%x failed\n", wka_port->d_id); |
Christof Schmitt | dceab65 | 2009-05-15 13:18:18 +0200 | [diff] [blame] | 1545 | /* fall through */ |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1546 | case FSF_ADAPTER_STATUS_AVAILABLE: |
| 1547 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Christof Schmitt | dceab65 | 2009-05-15 13:18:18 +0200 | [diff] [blame] | 1548 | /* fall through */ |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1549 | case FSF_ACCESS_DENIED: |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1550 | wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1551 | break; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1552 | case FSF_GOOD: |
| 1553 | wka_port->handle = header->port_handle; |
Swen Schillig | 27f492c | 2009-07-13 15:06:13 +0200 | [diff] [blame] | 1554 | /* fall through */ |
| 1555 | case FSF_PORT_ALREADY_OPEN: |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1556 | wka_port->status = ZFCP_FC_WKA_PORT_ONLINE; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1557 | } |
| 1558 | out: |
| 1559 | wake_up(&wka_port->completion_wq); |
| 1560 | } |
| 1561 | |
| 1562 | /** |
| 1563 | * zfcp_fsf_open_wka_port - create and send open wka-port request |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1564 | * @wka_port: pointer to struct zfcp_fc_wka_port |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1565 | * Returns: 0 on success, error otherwise |
| 1566 | */ |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1567 | int zfcp_fsf_open_wka_port(struct zfcp_fc_wka_port *wka_port) |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1568 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1569 | struct zfcp_qdio *qdio = wka_port->adapter->qdio; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1570 | struct zfcp_fsf_req *req; |
| 1571 | int retval = -EIO; |
| 1572 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1573 | spin_lock_bh(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1574 | if (zfcp_qdio_sbal_get(qdio)) |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1575 | goto out; |
| 1576 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1577 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_PORT_WITH_DID, |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1578 | SBAL_FLAGS0_TYPE_READ, |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1579 | qdio->adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1580 | |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1581 | if (unlikely(IS_ERR(req))) { |
| 1582 | retval = PTR_ERR(req); |
| 1583 | goto out; |
| 1584 | } |
| 1585 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1586 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1587 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1588 | |
| 1589 | req->handler = zfcp_fsf_open_wka_port_handler; |
Christof Schmitt | 800c0ca | 2009-11-24 16:54:12 +0100 | [diff] [blame] | 1590 | hton24(req->qtcb->bottom.support.d_id, wka_port->d_id); |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1591 | req->data = wka_port; |
| 1592 | |
| 1593 | zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); |
| 1594 | retval = zfcp_fsf_req_send(req); |
| 1595 | if (retval) |
| 1596 | zfcp_fsf_req_free(req); |
| 1597 | out: |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1598 | spin_unlock_bh(&qdio->req_q_lock); |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1599 | return retval; |
| 1600 | } |
| 1601 | |
| 1602 | static void zfcp_fsf_close_wka_port_handler(struct zfcp_fsf_req *req) |
| 1603 | { |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1604 | struct zfcp_fc_wka_port *wka_port = req->data; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1605 | |
| 1606 | if (req->qtcb->header.fsf_status == FSF_PORT_HANDLE_NOT_VALID) { |
| 1607 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 1608 | zfcp_erp_adapter_reopen(wka_port->adapter, 0, "fscwph1", req); |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1609 | } |
| 1610 | |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1611 | wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1612 | wake_up(&wka_port->completion_wq); |
| 1613 | } |
| 1614 | |
| 1615 | /** |
| 1616 | * zfcp_fsf_close_wka_port - create and send close wka port request |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1617 | * @wka_port: WKA port to open |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1618 | * Returns: 0 on success, error otherwise |
| 1619 | */ |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1620 | int zfcp_fsf_close_wka_port(struct zfcp_fc_wka_port *wka_port) |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1621 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1622 | struct zfcp_qdio *qdio = wka_port->adapter->qdio; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1623 | struct zfcp_fsf_req *req; |
| 1624 | int retval = -EIO; |
| 1625 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1626 | spin_lock_bh(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1627 | if (zfcp_qdio_sbal_get(qdio)) |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1628 | goto out; |
| 1629 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1630 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PORT, |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1631 | SBAL_FLAGS0_TYPE_READ, |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1632 | qdio->adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1633 | |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1634 | if (unlikely(IS_ERR(req))) { |
| 1635 | retval = PTR_ERR(req); |
| 1636 | goto out; |
| 1637 | } |
| 1638 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1639 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1640 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1641 | |
| 1642 | req->handler = zfcp_fsf_close_wka_port_handler; |
| 1643 | req->data = wka_port; |
| 1644 | req->qtcb->header.port_handle = wka_port->handle; |
| 1645 | |
| 1646 | zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); |
| 1647 | retval = zfcp_fsf_req_send(req); |
| 1648 | if (retval) |
| 1649 | zfcp_fsf_req_free(req); |
| 1650 | out: |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1651 | spin_unlock_bh(&qdio->req_q_lock); |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1652 | return retval; |
| 1653 | } |
| 1654 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1655 | static void zfcp_fsf_close_physical_port_handler(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1656 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1657 | struct zfcp_port *port = req->data; |
| 1658 | struct fsf_qtcb_header *header = &req->qtcb->header; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1659 | struct zfcp_unit *unit; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1660 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1661 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
Christof Schmitt | a5b11dd | 2009-03-02 13:08:54 +0100 | [diff] [blame] | 1662 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1663 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1664 | switch (header->fsf_status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1665 | case FSF_PORT_HANDLE_NOT_VALID: |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 1666 | zfcp_erp_adapter_reopen(port->adapter, 0, "fscpph1", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1667 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1668 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1669 | case FSF_ACCESS_DENIED: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1670 | zfcp_fsf_access_denied_port(req, port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1671 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1672 | case FSF_PORT_BOXED: |
Christof Schmitt | 5c815d1 | 2008-03-10 16:18:54 +0100 | [diff] [blame] | 1673 | /* can't use generic zfcp_erp_modify_port_status because |
| 1674 | * ZFCP_STATUS_COMMON_OPEN must not be reset for the port */ |
| 1675 | atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); |
Swen Schillig | ecf0c77 | 2009-11-24 16:53:58 +0100 | [diff] [blame] | 1676 | read_lock(&port->unit_list_lock); |
| 1677 | list_for_each_entry(unit, &port->unit_list, list) |
Christof Schmitt | 5c815d1 | 2008-03-10 16:18:54 +0100 | [diff] [blame] | 1678 | atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, |
| 1679 | &unit->status); |
Swen Schillig | ecf0c77 | 2009-11-24 16:53:58 +0100 | [diff] [blame] | 1680 | read_unlock(&port->unit_list_lock); |
Swen Schillig | dfb3cf0 | 2009-07-13 15:06:02 +0200 | [diff] [blame] | 1681 | zfcp_erp_port_boxed(port, "fscpph2", req); |
Christof Schmitt | 4c571c6 | 2009-11-24 16:54:15 +0100 | [diff] [blame] | 1682 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1683 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1684 | case FSF_ADAPTER_STATUS_AVAILABLE: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1685 | switch (header->fsf_status_qual.word[0]) { |
| 1686 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1687 | /* fall through */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1688 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1689 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1690 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1691 | } |
| 1692 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1693 | case FSF_GOOD: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1694 | /* can't use generic zfcp_erp_modify_port_status because |
| 1695 | * ZFCP_STATUS_COMMON_OPEN must not be reset for the port |
| 1696 | */ |
| 1697 | atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); |
Swen Schillig | ecf0c77 | 2009-11-24 16:53:58 +0100 | [diff] [blame] | 1698 | read_lock(&port->unit_list_lock); |
| 1699 | list_for_each_entry(unit, &port->unit_list, list) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1700 | atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, |
| 1701 | &unit->status); |
Swen Schillig | ecf0c77 | 2009-11-24 16:53:58 +0100 | [diff] [blame] | 1702 | read_unlock(&port->unit_list_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1703 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1704 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1705 | } |
| 1706 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1707 | /** |
| 1708 | * zfcp_fsf_close_physical_port - close physical port |
| 1709 | * @erp_action: pointer to struct zfcp_erp_action |
| 1710 | * Returns: 0 on success |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1711 | */ |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1712 | int zfcp_fsf_close_physical_port(struct zfcp_erp_action *erp_action) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1713 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1714 | struct zfcp_qdio *qdio = erp_action->adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1715 | struct zfcp_fsf_req *req; |
| 1716 | int retval = -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1717 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1718 | spin_lock_bh(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1719 | if (zfcp_qdio_sbal_get(qdio)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1720 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1721 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1722 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PHYSICAL_PORT, |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1723 | SBAL_FLAGS0_TYPE_READ, |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1724 | qdio->adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1725 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1726 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1727 | retval = PTR_ERR(req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1728 | goto out; |
| 1729 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1730 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1731 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1732 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1733 | |
| 1734 | req->data = erp_action->port; |
| 1735 | req->qtcb->header.port_handle = erp_action->port->handle; |
| 1736 | req->erp_action = erp_action; |
| 1737 | req->handler = zfcp_fsf_close_physical_port_handler; |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1738 | erp_action->fsf_req_id = req->req_id; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1739 | |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 1740 | zfcp_fsf_start_erp_timer(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1741 | retval = zfcp_fsf_req_send(req); |
| 1742 | if (retval) { |
| 1743 | zfcp_fsf_req_free(req); |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1744 | erp_action->fsf_req_id = 0; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1745 | } |
| 1746 | out: |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1747 | spin_unlock_bh(&qdio->req_q_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1748 | return retval; |
| 1749 | } |
| 1750 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1751 | static void zfcp_fsf_open_unit_handler(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1752 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1753 | struct zfcp_adapter *adapter = req->adapter; |
| 1754 | struct zfcp_unit *unit = req->data; |
| 1755 | struct fsf_qtcb_header *header = &req->qtcb->header; |
| 1756 | struct fsf_qtcb_bottom_support *bottom = &req->qtcb->bottom.support; |
| 1757 | struct fsf_queue_designator *queue_designator = |
| 1758 | &header->fsf_status_qual.fsf_queue_designator; |
Maxim Shchetynin | aef4a98 | 2005-09-13 21:51:16 +0200 | [diff] [blame] | 1759 | int exclusive, readwrite; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1760 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1761 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
Swen Schillig | 44cc76f | 2008-10-01 12:42:16 +0200 | [diff] [blame] | 1762 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1763 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1764 | atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED | |
Heiko Carstens | b64ddf9 | 2007-05-08 11:19:57 +0200 | [diff] [blame] | 1765 | ZFCP_STATUS_COMMON_ACCESS_BOXED | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1766 | ZFCP_STATUS_UNIT_SHARED | |
| 1767 | ZFCP_STATUS_UNIT_READONLY, |
| 1768 | &unit->status); |
| 1769 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1770 | switch (header->fsf_status) { |
| 1771 | |
| 1772 | case FSF_PORT_HANDLE_NOT_VALID: |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 1773 | zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fsouh_1", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1774 | /* fall through */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1775 | case FSF_LUN_ALREADY_OPEN: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1776 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1777 | case FSF_ACCESS_DENIED: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1778 | zfcp_fsf_access_denied_unit(req, unit); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1779 | atomic_clear_mask(ZFCP_STATUS_UNIT_SHARED, &unit->status); |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 1780 | atomic_clear_mask(ZFCP_STATUS_UNIT_READONLY, &unit->status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1781 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1782 | case FSF_PORT_BOXED: |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 1783 | zfcp_erp_port_boxed(unit->port, "fsouh_2", req); |
Christof Schmitt | 4c571c6 | 2009-11-24 16:54:15 +0100 | [diff] [blame] | 1784 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1785 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1786 | case FSF_LUN_SHARING_VIOLATION: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1787 | if (header->fsf_status_qual.word[0]) |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 1788 | dev_warn(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 1789 | "LUN 0x%Lx on port 0x%Lx is already in " |
| 1790 | "use by CSS%d, MIF Image ID %x\n", |
Swen Schillig | 7ba58c9 | 2008-10-01 12:42:18 +0200 | [diff] [blame] | 1791 | (unsigned long long)unit->fcp_lun, |
| 1792 | (unsigned long long)unit->port->wwpn, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 1793 | queue_designator->cssid, |
| 1794 | queue_designator->hla); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1795 | else |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 1796 | zfcp_act_eval_err(adapter, |
| 1797 | header->fsf_status_qual.word[2]); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 1798 | zfcp_erp_unit_access_denied(unit, "fsouh_3", req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1799 | atomic_clear_mask(ZFCP_STATUS_UNIT_SHARED, &unit->status); |
| 1800 | atomic_clear_mask(ZFCP_STATUS_UNIT_READONLY, &unit->status); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1801 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1802 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1803 | case FSF_MAXIMUM_NUMBER_OF_LUNS_EXCEEDED: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1804 | dev_warn(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 1805 | "No handle is available for LUN " |
| 1806 | "0x%016Lx on port 0x%016Lx\n", |
Swen Schillig | 7ba58c9 | 2008-10-01 12:42:18 +0200 | [diff] [blame] | 1807 | (unsigned long long)unit->fcp_lun, |
| 1808 | (unsigned long long)unit->port->wwpn); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 1809 | zfcp_erp_unit_failed(unit, "fsouh_4", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1810 | /* fall through */ |
| 1811 | case FSF_INVALID_COMMAND_OPTION: |
| 1812 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1813 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1814 | case FSF_ADAPTER_STATUS_AVAILABLE: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1815 | switch (header->fsf_status_qual.word[0]) { |
| 1816 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: |
Swen Schillig | 6f53a2d | 2009-08-18 15:43:23 +0200 | [diff] [blame] | 1817 | zfcp_fc_test_link(unit->port); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1818 | /* fall through */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1819 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1820 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1821 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1822 | } |
| 1823 | break; |
| 1824 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1825 | case FSF_GOOD: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1826 | unit->handle = header->lun_handle; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1827 | atomic_set_mask(ZFCP_STATUS_COMMON_OPEN, &unit->status); |
Maxim Shchetynin | aef4a98 | 2005-09-13 21:51:16 +0200 | [diff] [blame] | 1828 | |
| 1829 | if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE) && |
| 1830 | (adapter->adapter_features & FSF_FEATURE_LUN_SHARING) && |
Christof Schmitt | 6fcf41d | 2009-05-15 13:18:21 +0200 | [diff] [blame] | 1831 | !zfcp_ccw_priv_sch(adapter)) { |
Maxim Shchetynin | aef4a98 | 2005-09-13 21:51:16 +0200 | [diff] [blame] | 1832 | exclusive = (bottom->lun_access_info & |
| 1833 | FSF_UNIT_ACCESS_EXCLUSIVE); |
| 1834 | readwrite = (bottom->lun_access_info & |
| 1835 | FSF_UNIT_ACCESS_OUTBOUND_TRANSFER); |
| 1836 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1837 | if (!exclusive) |
| 1838 | atomic_set_mask(ZFCP_STATUS_UNIT_SHARED, |
| 1839 | &unit->status); |
| 1840 | |
| 1841 | if (!readwrite) { |
| 1842 | atomic_set_mask(ZFCP_STATUS_UNIT_READONLY, |
| 1843 | &unit->status); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1844 | dev_info(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 1845 | "SCSI device at LUN 0x%016Lx on port " |
| 1846 | "0x%016Lx opened read-only\n", |
Swen Schillig | 7ba58c9 | 2008-10-01 12:42:18 +0200 | [diff] [blame] | 1847 | (unsigned long long)unit->fcp_lun, |
| 1848 | (unsigned long long)unit->port->wwpn); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1849 | } |
| 1850 | |
| 1851 | if (exclusive && !readwrite) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1852 | dev_err(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 1853 | "Exclusive read-only access not " |
| 1854 | "supported (unit 0x%016Lx, " |
| 1855 | "port 0x%016Lx)\n", |
Swen Schillig | 7ba58c9 | 2008-10-01 12:42:18 +0200 | [diff] [blame] | 1856 | (unsigned long long)unit->fcp_lun, |
| 1857 | (unsigned long long)unit->port->wwpn); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 1858 | zfcp_erp_unit_failed(unit, "fsouh_5", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1859 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 1860 | zfcp_erp_unit_shutdown(unit, 0, "fsouh_6", req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1861 | } else if (!exclusive && readwrite) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1862 | dev_err(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 1863 | "Shared read-write access not " |
| 1864 | "supported (unit 0x%016Lx, port " |
Christof Schmitt | 27c3f0a | 2008-12-19 16:56:52 +0100 | [diff] [blame] | 1865 | "0x%016Lx)\n", |
Swen Schillig | 7ba58c9 | 2008-10-01 12:42:18 +0200 | [diff] [blame] | 1866 | (unsigned long long)unit->fcp_lun, |
| 1867 | (unsigned long long)unit->port->wwpn); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 1868 | zfcp_erp_unit_failed(unit, "fsouh_7", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1869 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 1870 | zfcp_erp_unit_shutdown(unit, 0, "fsouh_8", req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1871 | } |
| 1872 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1873 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1874 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1875 | } |
| 1876 | |
| 1877 | /** |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1878 | * zfcp_fsf_open_unit - open unit |
| 1879 | * @erp_action: pointer to struct zfcp_erp_action |
| 1880 | * Returns: 0 on success, error otherwise |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1881 | */ |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1882 | int zfcp_fsf_open_unit(struct zfcp_erp_action *erp_action) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1883 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1884 | struct zfcp_adapter *adapter = erp_action->adapter; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1885 | struct zfcp_qdio *qdio = adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1886 | struct zfcp_fsf_req *req; |
| 1887 | int retval = -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1888 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1889 | spin_lock_bh(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1890 | if (zfcp_qdio_sbal_get(qdio)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1891 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1892 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1893 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_LUN, |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1894 | SBAL_FLAGS0_TYPE_READ, |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 1895 | adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1896 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1897 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1898 | retval = PTR_ERR(req); |
| 1899 | goto out; |
Christof Schmitt | ba17242 | 2007-12-20 12:30:26 +0100 | [diff] [blame] | 1900 | } |
| 1901 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1902 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1903 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1904 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1905 | req->qtcb->header.port_handle = erp_action->port->handle; |
| 1906 | req->qtcb->bottom.support.fcp_lun = erp_action->unit->fcp_lun; |
| 1907 | req->handler = zfcp_fsf_open_unit_handler; |
| 1908 | req->data = erp_action->unit; |
| 1909 | req->erp_action = erp_action; |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1910 | erp_action->fsf_req_id = req->req_id; |
Andreas Herrmann | 059c97d | 2005-09-13 21:47:52 +0200 | [diff] [blame] | 1911 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1912 | if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE)) |
| 1913 | req->qtcb->bottom.support.option = FSF_OPEN_LUN_SUPPRESS_BOXING; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1914 | |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 1915 | zfcp_fsf_start_erp_timer(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1916 | retval = zfcp_fsf_req_send(req); |
| 1917 | if (retval) { |
| 1918 | zfcp_fsf_req_free(req); |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1919 | erp_action->fsf_req_id = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1920 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1921 | out: |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1922 | spin_unlock_bh(&qdio->req_q_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1923 | return retval; |
| 1924 | } |
| 1925 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1926 | static void zfcp_fsf_close_unit_handler(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1927 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1928 | struct zfcp_unit *unit = req->data; |
| 1929 | |
| 1930 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
Swen Schillig | 44cc76f | 2008-10-01 12:42:16 +0200 | [diff] [blame] | 1931 | return; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1932 | |
| 1933 | switch (req->qtcb->header.fsf_status) { |
| 1934 | case FSF_PORT_HANDLE_NOT_VALID: |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 1935 | zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fscuh_1", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1936 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 1937 | break; |
| 1938 | case FSF_LUN_HANDLE_NOT_VALID: |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 1939 | zfcp_erp_port_reopen(unit->port, 0, "fscuh_2", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1940 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 1941 | break; |
| 1942 | case FSF_PORT_BOXED: |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 1943 | zfcp_erp_port_boxed(unit->port, "fscuh_3", req); |
Christof Schmitt | 4c571c6 | 2009-11-24 16:54:15 +0100 | [diff] [blame] | 1944 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1945 | break; |
| 1946 | case FSF_ADAPTER_STATUS_AVAILABLE: |
| 1947 | switch (req->qtcb->header.fsf_status_qual.word[0]) { |
| 1948 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: |
Swen Schillig | 6f53a2d | 2009-08-18 15:43:23 +0200 | [diff] [blame] | 1949 | zfcp_fc_test_link(unit->port); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1950 | /* fall through */ |
| 1951 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
| 1952 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 1953 | break; |
| 1954 | } |
| 1955 | break; |
| 1956 | case FSF_GOOD: |
| 1957 | atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, &unit->status); |
| 1958 | break; |
| 1959 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1960 | } |
| 1961 | |
| 1962 | /** |
| 1963 | * zfcp_fsf_close_unit - close zfcp unit |
| 1964 | * @erp_action: pointer to struct zfcp_unit |
| 1965 | * Returns: 0 on success, error otherwise |
| 1966 | */ |
| 1967 | int zfcp_fsf_close_unit(struct zfcp_erp_action *erp_action) |
| 1968 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1969 | struct zfcp_qdio *qdio = erp_action->adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1970 | struct zfcp_fsf_req *req; |
| 1971 | int retval = -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1972 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1973 | spin_lock_bh(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1974 | if (zfcp_qdio_sbal_get(qdio)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1975 | goto out; |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1976 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1977 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_LUN, |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1978 | SBAL_FLAGS0_TYPE_READ, |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1979 | qdio->adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1980 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1981 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1982 | retval = PTR_ERR(req); |
| 1983 | goto out; |
| 1984 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1985 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1986 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1987 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1988 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1989 | req->qtcb->header.port_handle = erp_action->port->handle; |
| 1990 | req->qtcb->header.lun_handle = erp_action->unit->handle; |
| 1991 | req->handler = zfcp_fsf_close_unit_handler; |
| 1992 | req->data = erp_action->unit; |
| 1993 | req->erp_action = erp_action; |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1994 | erp_action->fsf_req_id = req->req_id; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1995 | |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 1996 | zfcp_fsf_start_erp_timer(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1997 | retval = zfcp_fsf_req_send(req); |
| 1998 | if (retval) { |
| 1999 | zfcp_fsf_req_free(req); |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 2000 | erp_action->fsf_req_id = 0; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2001 | } |
| 2002 | out: |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2003 | spin_unlock_bh(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2004 | return retval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2005 | } |
| 2006 | |
Christof Schmitt | c961585 | 2008-05-06 11:00:05 +0200 | [diff] [blame] | 2007 | static void zfcp_fsf_update_lat(struct fsf_latency_record *lat_rec, u32 lat) |
| 2008 | { |
| 2009 | lat_rec->sum += lat; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2010 | lat_rec->min = min(lat_rec->min, lat); |
| 2011 | lat_rec->max = max(lat_rec->max, lat); |
Christof Schmitt | c961585 | 2008-05-06 11:00:05 +0200 | [diff] [blame] | 2012 | } |
| 2013 | |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 2014 | static void zfcp_fsf_req_trace(struct zfcp_fsf_req *req, struct scsi_cmnd *scsi) |
Christof Schmitt | c961585 | 2008-05-06 11:00:05 +0200 | [diff] [blame] | 2015 | { |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 2016 | struct fsf_qual_latency_info *lat_in; |
| 2017 | struct latency_cont *lat = NULL; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2018 | struct zfcp_unit *unit = req->unit; |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 2019 | struct zfcp_blk_drv_data blktrc; |
| 2020 | int ticks = req->adapter->timer_ticks; |
Christof Schmitt | c961585 | 2008-05-06 11:00:05 +0200 | [diff] [blame] | 2021 | |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 2022 | lat_in = &req->qtcb->prefix.prot_status_qual.latency_info; |
Christof Schmitt | c961585 | 2008-05-06 11:00:05 +0200 | [diff] [blame] | 2023 | |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 2024 | blktrc.flags = 0; |
| 2025 | blktrc.magic = ZFCP_BLK_DRV_DATA_MAGIC; |
| 2026 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
| 2027 | blktrc.flags |= ZFCP_BLK_REQ_ERROR; |
Christof Schmitt | 34c2b71 | 2010-02-17 11:18:59 +0100 | [diff] [blame] | 2028 | blktrc.inb_usage = req->qdio_req.qdio_inb_usage; |
| 2029 | blktrc.outb_usage = req->qdio_req.qdio_outb_usage; |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 2030 | |
Christof Schmitt | 5bbf297 | 2010-04-01 13:04:08 +0200 | [diff] [blame] | 2031 | if (req->adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA && |
| 2032 | !(req->status & ZFCP_STATUS_FSFREQ_ERROR)) { |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 2033 | blktrc.flags |= ZFCP_BLK_LAT_VALID; |
| 2034 | blktrc.channel_lat = lat_in->channel_lat * ticks; |
| 2035 | blktrc.fabric_lat = lat_in->fabric_lat * ticks; |
| 2036 | |
| 2037 | switch (req->qtcb->bottom.io.data_direction) { |
| 2038 | case FSF_DATADIR_READ: |
| 2039 | lat = &unit->latencies.read; |
| 2040 | break; |
| 2041 | case FSF_DATADIR_WRITE: |
| 2042 | lat = &unit->latencies.write; |
| 2043 | break; |
| 2044 | case FSF_DATADIR_CMND: |
| 2045 | lat = &unit->latencies.cmd; |
| 2046 | break; |
| 2047 | } |
| 2048 | |
| 2049 | if (lat) { |
| 2050 | spin_lock(&unit->latencies.lock); |
| 2051 | zfcp_fsf_update_lat(&lat->channel, lat_in->channel_lat); |
| 2052 | zfcp_fsf_update_lat(&lat->fabric, lat_in->fabric_lat); |
| 2053 | lat->counter++; |
| 2054 | spin_unlock(&unit->latencies.lock); |
| 2055 | } |
Christof Schmitt | c961585 | 2008-05-06 11:00:05 +0200 | [diff] [blame] | 2056 | } |
| 2057 | |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 2058 | blk_add_driver_data(scsi->request->q, scsi->request, &blktrc, |
| 2059 | sizeof(blktrc)); |
Christof Schmitt | c961585 | 2008-05-06 11:00:05 +0200 | [diff] [blame] | 2060 | } |
| 2061 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2062 | static void zfcp_fsf_send_fcp_command_task_handler(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2063 | { |
Swen Schillig | 0ac55aa | 2008-11-26 18:07:39 +0100 | [diff] [blame] | 2064 | struct scsi_cmnd *scpnt; |
Christof Schmitt | 4318e08 | 2009-11-24 16:54:08 +0100 | [diff] [blame] | 2065 | struct fcp_resp_with_ext *fcp_rsp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2066 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2067 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2068 | read_lock_irqsave(&req->adapter->abort_lock, flags); |
| 2069 | |
Swen Schillig | 0ac55aa | 2008-11-26 18:07:39 +0100 | [diff] [blame] | 2070 | scpnt = req->data; |
| 2071 | if (unlikely(!scpnt)) { |
| 2072 | read_unlock_irqrestore(&req->adapter->abort_lock, flags); |
| 2073 | return; |
| 2074 | } |
| 2075 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2076 | if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) { |
Christof Schmitt | 4c571c6 | 2009-11-24 16:54:15 +0100 | [diff] [blame] | 2077 | set_host_byte(scpnt, DID_TRANSPORT_DISRUPTED); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2078 | goto skip_fsfstatus; |
| 2079 | } |
| 2080 | |
Christof Schmitt | 4318e08 | 2009-11-24 16:54:08 +0100 | [diff] [blame] | 2081 | fcp_rsp = (struct fcp_resp_with_ext *) &req->qtcb->bottom.io.fcp_rsp; |
| 2082 | zfcp_fc_eval_fcp_rsp(fcp_rsp, scpnt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2083 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2084 | skip_fsfstatus: |
Christof Schmitt | 5bbf297 | 2010-04-01 13:04:08 +0200 | [diff] [blame] | 2085 | zfcp_fsf_req_trace(req, scpnt); |
Christof Schmitt | ab72528 | 2010-02-17 11:18:57 +0100 | [diff] [blame] | 2086 | zfcp_dbf_scsi_result(req->adapter->dbf, scpnt, req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2087 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2088 | scpnt->host_scribble = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2089 | (scpnt->scsi_done) (scpnt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2090 | /* |
| 2091 | * We must hold this lock until scsi_done has been called. |
| 2092 | * Otherwise we may call scsi_done after abort regarding this |
| 2093 | * command has completed. |
| 2094 | * Note: scsi_done must not block! |
| 2095 | */ |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2096 | read_unlock_irqrestore(&req->adapter->abort_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2097 | } |
| 2098 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2099 | static void zfcp_fsf_send_fcp_ctm_handler(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2100 | { |
Christof Schmitt | 4318e08 | 2009-11-24 16:54:08 +0100 | [diff] [blame] | 2101 | struct fcp_resp_with_ext *fcp_rsp; |
| 2102 | struct fcp_resp_rsp_info *rsp_info; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2103 | |
Christof Schmitt | 4318e08 | 2009-11-24 16:54:08 +0100 | [diff] [blame] | 2104 | fcp_rsp = (struct fcp_resp_with_ext *) &req->qtcb->bottom.io.fcp_rsp; |
| 2105 | rsp_info = (struct fcp_resp_rsp_info *) &fcp_rsp[1]; |
| 2106 | |
| 2107 | if ((rsp_info->rsp_code != FCP_TMF_CMPL) || |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2108 | (req->status & ZFCP_STATUS_FSFREQ_ERROR)) |
| 2109 | req->status |= ZFCP_STATUS_FSFREQ_TMFUNCFAILED; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2110 | } |
| 2111 | |
| 2112 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2113 | static void zfcp_fsf_send_fcp_command_handler(struct zfcp_fsf_req *req) |
| 2114 | { |
| 2115 | struct zfcp_unit *unit; |
| 2116 | struct fsf_qtcb_header *header = &req->qtcb->header; |
| 2117 | |
| 2118 | if (unlikely(req->status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT)) |
| 2119 | unit = req->data; |
| 2120 | else |
| 2121 | unit = req->unit; |
| 2122 | |
| 2123 | if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) |
| 2124 | goto skip_fsfstatus; |
| 2125 | |
| 2126 | switch (header->fsf_status) { |
| 2127 | case FSF_HANDLE_MISMATCH: |
| 2128 | case FSF_PORT_HANDLE_NOT_VALID: |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 2129 | zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fssfch1", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2130 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 2131 | break; |
| 2132 | case FSF_FCPLUN_NOT_VALID: |
| 2133 | case FSF_LUN_HANDLE_NOT_VALID: |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 2134 | zfcp_erp_port_reopen(unit->port, 0, "fssfch2", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2135 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 2136 | break; |
| 2137 | case FSF_SERVICE_CLASS_NOT_SUPPORTED: |
| 2138 | zfcp_fsf_class_not_supp(req); |
| 2139 | break; |
| 2140 | case FSF_ACCESS_DENIED: |
| 2141 | zfcp_fsf_access_denied_unit(req, unit); |
| 2142 | break; |
| 2143 | case FSF_DIRECTION_INDICATOR_NOT_VALID: |
| 2144 | dev_err(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 2145 | "Incorrect direction %d, unit 0x%016Lx on port " |
| 2146 | "0x%016Lx closed\n", |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2147 | req->qtcb->bottom.io.data_direction, |
Swen Schillig | 7ba58c9 | 2008-10-01 12:42:18 +0200 | [diff] [blame] | 2148 | (unsigned long long)unit->fcp_lun, |
| 2149 | (unsigned long long)unit->port->wwpn); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 2150 | zfcp_erp_adapter_shutdown(unit->port->adapter, 0, "fssfch3", |
| 2151 | req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2152 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 2153 | break; |
| 2154 | case FSF_CMND_LENGTH_NOT_VALID: |
| 2155 | dev_err(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 2156 | "Incorrect CDB length %d, unit 0x%016Lx on " |
| 2157 | "port 0x%016Lx closed\n", |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2158 | req->qtcb->bottom.io.fcp_cmnd_length, |
Swen Schillig | 7ba58c9 | 2008-10-01 12:42:18 +0200 | [diff] [blame] | 2159 | (unsigned long long)unit->fcp_lun, |
| 2160 | (unsigned long long)unit->port->wwpn); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 2161 | zfcp_erp_adapter_shutdown(unit->port->adapter, 0, "fssfch4", |
| 2162 | req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2163 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 2164 | break; |
| 2165 | case FSF_PORT_BOXED: |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 2166 | zfcp_erp_port_boxed(unit->port, "fssfch5", req); |
Christof Schmitt | 4c571c6 | 2009-11-24 16:54:15 +0100 | [diff] [blame] | 2167 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2168 | break; |
| 2169 | case FSF_LUN_BOXED: |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 2170 | zfcp_erp_unit_boxed(unit, "fssfch6", req); |
Christof Schmitt | 4c571c6 | 2009-11-24 16:54:15 +0100 | [diff] [blame] | 2171 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2172 | break; |
| 2173 | case FSF_ADAPTER_STATUS_AVAILABLE: |
| 2174 | if (header->fsf_status_qual.word[0] == |
| 2175 | FSF_SQ_INVOKE_LINK_TEST_PROCEDURE) |
Swen Schillig | 6f53a2d | 2009-08-18 15:43:23 +0200 | [diff] [blame] | 2176 | zfcp_fc_test_link(unit->port); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2177 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 2178 | break; |
| 2179 | } |
| 2180 | skip_fsfstatus: |
| 2181 | if (req->status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT) |
| 2182 | zfcp_fsf_send_fcp_ctm_handler(req); |
| 2183 | else { |
| 2184 | zfcp_fsf_send_fcp_command_task_handler(req); |
| 2185 | req->unit = NULL; |
Christof Schmitt | 615f59e | 2010-02-17 11:18:56 +0100 | [diff] [blame] | 2186 | put_device(&unit->dev); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2187 | } |
| 2188 | } |
| 2189 | |
| 2190 | /** |
| 2191 | * zfcp_fsf_send_fcp_command_task - initiate an FCP command (for a SCSI command) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2192 | * @unit: unit where command is sent to |
| 2193 | * @scsi_cmnd: scsi command to be sent |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2194 | */ |
Christof Schmitt | 63caf36 | 2009-03-02 13:09:00 +0100 | [diff] [blame] | 2195 | int zfcp_fsf_send_fcp_command_task(struct zfcp_unit *unit, |
| 2196 | struct scsi_cmnd *scsi_cmnd) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2197 | { |
| 2198 | struct zfcp_fsf_req *req; |
Christof Schmitt | 4318e08 | 2009-11-24 16:54:08 +0100 | [diff] [blame] | 2199 | struct fcp_cmnd *fcp_cmnd; |
Christof Schmitt | bc90c86 | 2009-05-15 13:18:17 +0200 | [diff] [blame] | 2200 | unsigned int sbtype = SBAL_FLAGS0_TYPE_READ; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2201 | int real_bytes, retval = -EIO; |
Christof Schmitt | 63caf36 | 2009-03-02 13:09:00 +0100 | [diff] [blame] | 2202 | struct zfcp_adapter *adapter = unit->port->adapter; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2203 | struct zfcp_qdio *qdio = adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2204 | |
| 2205 | if (unlikely(!(atomic_read(&unit->status) & |
| 2206 | ZFCP_STATUS_COMMON_UNBLOCKED))) |
| 2207 | return -EBUSY; |
| 2208 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2209 | spin_lock(&qdio->req_q_lock); |
| 2210 | if (atomic_read(&qdio->req_q.count) <= 0) { |
| 2211 | atomic_inc(&qdio->req_q_full); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2212 | goto out; |
Christof Schmitt | 8fdf30d | 2009-03-02 13:09:01 +0100 | [diff] [blame] | 2213 | } |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 2214 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 2215 | if (scsi_cmnd->sc_data_direction == DMA_TO_DEVICE) |
| 2216 | sbtype = SBAL_FLAGS0_TYPE_WRITE; |
| 2217 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2218 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_FCP_CMND, |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 2219 | sbtype, adapter->pool.scsi_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 2220 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 2221 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2222 | retval = PTR_ERR(req); |
| 2223 | goto out; |
| 2224 | } |
| 2225 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 2226 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2227 | req->unit = unit; |
| 2228 | req->data = scsi_cmnd; |
| 2229 | req->handler = zfcp_fsf_send_fcp_command_handler; |
| 2230 | req->qtcb->header.lun_handle = unit->handle; |
| 2231 | req->qtcb->header.port_handle = unit->port->handle; |
| 2232 | req->qtcb->bottom.io.service_class = FSF_CLASS_3; |
Christof Schmitt | 4318e08 | 2009-11-24 16:54:08 +0100 | [diff] [blame] | 2233 | req->qtcb->bottom.io.fcp_cmnd_length = FCP_CMND_LEN; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2234 | |
| 2235 | scsi_cmnd->host_scribble = (unsigned char *) req->req_id; |
| 2236 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2237 | /* |
| 2238 | * set depending on data direction: |
| 2239 | * data direction bits in SBALE (SB Type) |
| 2240 | * data direction bits in QTCB |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2241 | */ |
| 2242 | switch (scsi_cmnd->sc_data_direction) { |
| 2243 | case DMA_NONE: |
| 2244 | req->qtcb->bottom.io.data_direction = FSF_DATADIR_CMND; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2245 | break; |
| 2246 | case DMA_FROM_DEVICE: |
| 2247 | req->qtcb->bottom.io.data_direction = FSF_DATADIR_READ; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2248 | break; |
| 2249 | case DMA_TO_DEVICE: |
| 2250 | req->qtcb->bottom.io.data_direction = FSF_DATADIR_WRITE; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2251 | break; |
| 2252 | case DMA_BIDIRECTIONAL: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2253 | goto failed_scsi_cmnd; |
| 2254 | } |
| 2255 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 2256 | get_device(&unit->dev); |
| 2257 | |
Christof Schmitt | 4318e08 | 2009-11-24 16:54:08 +0100 | [diff] [blame] | 2258 | fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd; |
| 2259 | zfcp_fc_scsi_to_fcp(fcp_cmnd, scsi_cmnd); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2260 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 2261 | real_bytes = zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, |
Swen Schillig | 01b0475 | 2010-07-16 15:37:37 +0200 | [diff] [blame^] | 2262 | scsi_sglist(scsi_cmnd)); |
| 2263 | if (unlikely(real_bytes < 0)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2264 | goto failed_scsi_cmnd; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2265 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2266 | retval = zfcp_fsf_req_send(req); |
| 2267 | if (unlikely(retval)) |
| 2268 | goto failed_scsi_cmnd; |
| 2269 | |
| 2270 | goto out; |
| 2271 | |
| 2272 | failed_scsi_cmnd: |
Christof Schmitt | 615f59e | 2010-02-17 11:18:56 +0100 | [diff] [blame] | 2273 | put_device(&unit->dev); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2274 | zfcp_fsf_req_free(req); |
| 2275 | scsi_cmnd->host_scribble = NULL; |
| 2276 | out: |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2277 | spin_unlock(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2278 | return retval; |
| 2279 | } |
| 2280 | |
| 2281 | /** |
| 2282 | * zfcp_fsf_send_fcp_ctm - send SCSI task management command |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2283 | * @unit: pointer to struct zfcp_unit |
| 2284 | * @tm_flags: unsigned byte for task management flags |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2285 | * Returns: on success pointer to struct fsf_req, NULL otherwise |
| 2286 | */ |
Christof Schmitt | 63caf36 | 2009-03-02 13:09:00 +0100 | [diff] [blame] | 2287 | struct zfcp_fsf_req *zfcp_fsf_send_fcp_ctm(struct zfcp_unit *unit, u8 tm_flags) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2288 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2289 | struct zfcp_fsf_req *req = NULL; |
Christof Schmitt | 4318e08 | 2009-11-24 16:54:08 +0100 | [diff] [blame] | 2290 | struct fcp_cmnd *fcp_cmnd; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2291 | struct zfcp_qdio *qdio = unit->port->adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2292 | |
| 2293 | if (unlikely(!(atomic_read(&unit->status) & |
| 2294 | ZFCP_STATUS_COMMON_UNBLOCKED))) |
| 2295 | return NULL; |
| 2296 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2297 | spin_lock_bh(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 2298 | if (zfcp_qdio_sbal_get(qdio)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2299 | goto out; |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 2300 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2301 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_FCP_CMND, |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 2302 | SBAL_FLAGS0_TYPE_WRITE, |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2303 | qdio->adapter->pool.scsi_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 2304 | |
Swen Schillig | 633528c | 2008-11-26 18:07:37 +0100 | [diff] [blame] | 2305 | if (IS_ERR(req)) { |
| 2306 | req = NULL; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2307 | goto out; |
Swen Schillig | 633528c | 2008-11-26 18:07:37 +0100 | [diff] [blame] | 2308 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2309 | |
| 2310 | req->status |= ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT; |
| 2311 | req->data = unit; |
| 2312 | req->handler = zfcp_fsf_send_fcp_command_handler; |
| 2313 | req->qtcb->header.lun_handle = unit->handle; |
| 2314 | req->qtcb->header.port_handle = unit->port->handle; |
| 2315 | req->qtcb->bottom.io.data_direction = FSF_DATADIR_CMND; |
| 2316 | req->qtcb->bottom.io.service_class = FSF_CLASS_3; |
Christof Schmitt | 4318e08 | 2009-11-24 16:54:08 +0100 | [diff] [blame] | 2317 | req->qtcb->bottom.io.fcp_cmnd_length = FCP_CMND_LEN; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2318 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 2319 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2320 | |
Christof Schmitt | 4318e08 | 2009-11-24 16:54:08 +0100 | [diff] [blame] | 2321 | fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd; |
| 2322 | zfcp_fc_fcp_tm(fcp_cmnd, unit->device, tm_flags); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2323 | |
| 2324 | zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT); |
| 2325 | if (!zfcp_fsf_req_send(req)) |
| 2326 | goto out; |
| 2327 | |
| 2328 | zfcp_fsf_req_free(req); |
| 2329 | req = NULL; |
| 2330 | out: |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2331 | spin_unlock_bh(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2332 | return req; |
| 2333 | } |
| 2334 | |
| 2335 | static void zfcp_fsf_control_file_handler(struct zfcp_fsf_req *req) |
| 2336 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2337 | } |
| 2338 | |
| 2339 | /** |
| 2340 | * zfcp_fsf_control_file - control file upload/download |
| 2341 | * @adapter: pointer to struct zfcp_adapter |
| 2342 | * @fsf_cfdc: pointer to struct zfcp_fsf_cfdc |
| 2343 | * Returns: on success pointer to struct zfcp_fsf_req, NULL otherwise |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2344 | */ |
Christof Schmitt | 45633fd | 2008-06-10 18:20:55 +0200 | [diff] [blame] | 2345 | struct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *adapter, |
| 2346 | struct zfcp_fsf_cfdc *fsf_cfdc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2347 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2348 | struct zfcp_qdio *qdio = adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2349 | struct zfcp_fsf_req *req = NULL; |
| 2350 | struct fsf_qtcb_bottom_support *bottom; |
| 2351 | int direction, retval = -EIO, bytes; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2352 | |
Christof Schmitt | 45633fd | 2008-06-10 18:20:55 +0200 | [diff] [blame] | 2353 | if (!(adapter->adapter_features & FSF_FEATURE_CFDC)) |
| 2354 | return ERR_PTR(-EOPNOTSUPP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2355 | |
Christof Schmitt | 45633fd | 2008-06-10 18:20:55 +0200 | [diff] [blame] | 2356 | switch (fsf_cfdc->command) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2357 | case FSF_QTCB_DOWNLOAD_CONTROL_FILE: |
| 2358 | direction = SBAL_FLAGS0_TYPE_WRITE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2359 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2360 | case FSF_QTCB_UPLOAD_CONTROL_FILE: |
| 2361 | direction = SBAL_FLAGS0_TYPE_READ; |
| 2362 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2363 | default: |
Christof Schmitt | 45633fd | 2008-06-10 18:20:55 +0200 | [diff] [blame] | 2364 | return ERR_PTR(-EINVAL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2365 | } |
| 2366 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2367 | spin_lock_bh(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 2368 | if (zfcp_qdio_sbal_get(qdio)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2369 | goto out; |
| 2370 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 2371 | req = zfcp_fsf_req_create(qdio, fsf_cfdc->command, direction, NULL); |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 2372 | if (IS_ERR(req)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2373 | retval = -EPERM; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2374 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2375 | } |
| 2376 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2377 | req->handler = zfcp_fsf_control_file_handler; |
| 2378 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2379 | bottom = &req->qtcb->bottom.support; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2380 | bottom->operation_subtype = FSF_CFDC_OPERATION_SUBTYPE; |
Christof Schmitt | 45633fd | 2008-06-10 18:20:55 +0200 | [diff] [blame] | 2381 | bottom->option = fsf_cfdc->option; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2382 | |
Swen Schillig | 01b0475 | 2010-07-16 15:37:37 +0200 | [diff] [blame^] | 2383 | bytes = zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, fsf_cfdc->sg); |
| 2384 | |
Christof Schmitt | 45633fd | 2008-06-10 18:20:55 +0200 | [diff] [blame] | 2385 | if (bytes != ZFCP_CFDC_MAX_SIZE) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2386 | zfcp_fsf_req_free(req); |
| 2387 | goto out; |
Christof Schmitt | 45633fd | 2008-06-10 18:20:55 +0200 | [diff] [blame] | 2388 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2389 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2390 | zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); |
| 2391 | retval = zfcp_fsf_req_send(req); |
| 2392 | out: |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2393 | spin_unlock_bh(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2394 | |
| 2395 | if (!retval) { |
Swen Schillig | 058b864 | 2009-08-18 15:43:14 +0200 | [diff] [blame] | 2396 | wait_for_completion(&req->completion); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2397 | return req; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2398 | } |
Christof Schmitt | 45633fd | 2008-06-10 18:20:55 +0200 | [diff] [blame] | 2399 | return ERR_PTR(retval); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2400 | } |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 2401 | |
| 2402 | /** |
| 2403 | * zfcp_fsf_reqid_check - validate req_id contained in SBAL returned by QDIO |
| 2404 | * @adapter: pointer to struct zfcp_adapter |
| 2405 | * @sbal_idx: response queue index of SBAL to be processed |
| 2406 | */ |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2407 | void zfcp_fsf_reqid_check(struct zfcp_qdio *qdio, int sbal_idx) |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 2408 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2409 | struct zfcp_adapter *adapter = qdio->adapter; |
| 2410 | struct qdio_buffer *sbal = qdio->resp_q.sbal[sbal_idx]; |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 2411 | struct qdio_buffer_element *sbale; |
| 2412 | struct zfcp_fsf_req *fsf_req; |
Christof Schmitt | b6bd2fb | 2010-02-17 11:18:50 +0100 | [diff] [blame] | 2413 | unsigned long req_id; |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 2414 | int idx; |
| 2415 | |
| 2416 | for (idx = 0; idx < QDIO_MAX_ELEMENTS_PER_BUFFER; idx++) { |
| 2417 | |
| 2418 | sbale = &sbal->element[idx]; |
| 2419 | req_id = (unsigned long) sbale->addr; |
Christof Schmitt | b6bd2fb | 2010-02-17 11:18:50 +0100 | [diff] [blame] | 2420 | fsf_req = zfcp_reqlist_find_rm(adapter->req_list, req_id); |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 2421 | |
| 2422 | if (!fsf_req) |
| 2423 | /* |
| 2424 | * Unknown request means that we have potentially memory |
| 2425 | * corruption and must stop the machine immediately. |
| 2426 | */ |
| 2427 | panic("error: unknown req_id (%lx) on adapter %s.\n", |
| 2428 | req_id, dev_name(&adapter->ccw_device->dev)); |
| 2429 | |
Christof Schmitt | 34c2b71 | 2010-02-17 11:18:59 +0100 | [diff] [blame] | 2430 | fsf_req->qdio_req.sbal_response = sbal_idx; |
| 2431 | fsf_req->qdio_req.qdio_inb_usage = |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2432 | atomic_read(&qdio->resp_q.count); |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 2433 | zfcp_fsf_req_complete(fsf_req); |
| 2434 | |
| 2435 | if (likely(sbale->flags & SBAL_FLAGS_LAST_ENTRY)) |
| 2436 | break; |
| 2437 | } |
| 2438 | } |