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Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
553448f6 | 2 | * zfcp device driver |
1da177e4 | 3 | * |
553448f6 | 4 | * Implementation of FSF commands. |
1da177e4 | 5 | * |
615f59e0 | 6 | * Copyright IBM Corporation 2002, 2010 |
1da177e4 LT |
7 | */ |
8 | ||
ecf39d42 CS |
9 | #define KMSG_COMPONENT "zfcp" |
10 | #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt | |
11 | ||
0997f1c5 | 12 | #include <linux/blktrace_api.h> |
5a0e3ad6 | 13 | #include <linux/slab.h> |
9d05ce2c | 14 | #include <scsi/fc/fc_els.h> |
1da177e4 | 15 | #include "zfcp_ext.h" |
4318e08c | 16 | #include "zfcp_fc.h" |
dcd20e23 | 17 | #include "zfcp_dbf.h" |
34c2b712 | 18 | #include "zfcp_qdio.h" |
b6bd2fb9 | 19 | #include "zfcp_reqlist.h" |
1da177e4 | 20 | |
287ac01a CS |
21 | static void zfcp_fsf_request_timeout_handler(unsigned long data) |
22 | { | |
23 | struct zfcp_adapter *adapter = (struct zfcp_adapter *) data; | |
339f4f4e | 24 | zfcp_qdio_siosl(adapter); |
5ffd51a5 SS |
25 | zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED, |
26 | "fsrth_1", NULL); | |
287ac01a CS |
27 | } |
28 | ||
29 | static void zfcp_fsf_start_timer(struct zfcp_fsf_req *fsf_req, | |
30 | unsigned long timeout) | |
31 | { | |
32 | fsf_req->timer.function = zfcp_fsf_request_timeout_handler; | |
33 | fsf_req->timer.data = (unsigned long) fsf_req->adapter; | |
34 | fsf_req->timer.expires = jiffies + timeout; | |
35 | add_timer(&fsf_req->timer); | |
36 | } | |
37 | ||
38 | static void zfcp_fsf_start_erp_timer(struct zfcp_fsf_req *fsf_req) | |
39 | { | |
40 | BUG_ON(!fsf_req->erp_action); | |
41 | fsf_req->timer.function = zfcp_erp_timeout_handler; | |
42 | fsf_req->timer.data = (unsigned long) fsf_req->erp_action; | |
43 | fsf_req->timer.expires = jiffies + 30 * HZ; | |
44 | add_timer(&fsf_req->timer); | |
45 | } | |
46 | ||
1da177e4 LT |
47 | /* association between FSF command and FSF QTCB type */ |
48 | static u32 fsf_qtcb_type[] = { | |
49 | [FSF_QTCB_FCP_CMND] = FSF_IO_COMMAND, | |
50 | [FSF_QTCB_ABORT_FCP_CMND] = FSF_SUPPORT_COMMAND, | |
51 | [FSF_QTCB_OPEN_PORT_WITH_DID] = FSF_SUPPORT_COMMAND, | |
52 | [FSF_QTCB_OPEN_LUN] = FSF_SUPPORT_COMMAND, | |
53 | [FSF_QTCB_CLOSE_LUN] = FSF_SUPPORT_COMMAND, | |
54 | [FSF_QTCB_CLOSE_PORT] = FSF_SUPPORT_COMMAND, | |
55 | [FSF_QTCB_CLOSE_PHYSICAL_PORT] = FSF_SUPPORT_COMMAND, | |
56 | [FSF_QTCB_SEND_ELS] = FSF_SUPPORT_COMMAND, | |
57 | [FSF_QTCB_SEND_GENERIC] = FSF_SUPPORT_COMMAND, | |
58 | [FSF_QTCB_EXCHANGE_CONFIG_DATA] = FSF_CONFIG_COMMAND, | |
59 | [FSF_QTCB_EXCHANGE_PORT_DATA] = FSF_PORT_COMMAND, | |
60 | [FSF_QTCB_DOWNLOAD_CONTROL_FILE] = FSF_SUPPORT_COMMAND, | |
61 | [FSF_QTCB_UPLOAD_CONTROL_FILE] = FSF_SUPPORT_COMMAND | |
62 | }; | |
63 | ||
553448f6 CS |
64 | static void zfcp_act_eval_err(struct zfcp_adapter *adapter, u32 table) |
65 | { | |
c41f8cbd | 66 | u16 subtable = table >> 16; |
553448f6 | 67 | u16 rule = table & 0xffff; |
ff3b24fa | 68 | const char *act_type[] = { "unknown", "OS", "WWPN", "DID", "LUN" }; |
553448f6 | 69 | |
ff3b24fa | 70 | if (subtable && subtable < ARRAY_SIZE(act_type)) |
553448f6 | 71 | dev_warn(&adapter->ccw_device->dev, |
ff3b24fa CS |
72 | "Access denied according to ACT rule type %s, " |
73 | "rule %d\n", act_type[subtable], rule); | |
553448f6 CS |
74 | } |
75 | ||
76 | static void zfcp_fsf_access_denied_port(struct zfcp_fsf_req *req, | |
77 | struct zfcp_port *port) | |
78 | { | |
79 | struct fsf_qtcb_header *header = &req->qtcb->header; | |
80 | dev_warn(&req->adapter->ccw_device->dev, | |
ff3b24fa | 81 | "Access denied to port 0x%016Lx\n", |
7ba58c9c | 82 | (unsigned long long)port->wwpn); |
553448f6 CS |
83 | zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[0]); |
84 | zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[1]); | |
5ffd51a5 | 85 | zfcp_erp_port_access_denied(port, "fspad_1", req); |
553448f6 CS |
86 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
87 | } | |
88 | ||
b62a8d9b CS |
89 | static void zfcp_fsf_access_denied_lun(struct zfcp_fsf_req *req, |
90 | struct scsi_device *sdev) | |
553448f6 | 91 | { |
b62a8d9b CS |
92 | struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); |
93 | ||
553448f6 CS |
94 | struct fsf_qtcb_header *header = &req->qtcb->header; |
95 | dev_warn(&req->adapter->ccw_device->dev, | |
b62a8d9b CS |
96 | "Access denied to LUN 0x%016Lx on port 0x%016Lx\n", |
97 | (unsigned long long)zfcp_scsi_dev_lun(sdev), | |
98 | (unsigned long long)zfcp_sdev->port->wwpn); | |
553448f6 CS |
99 | zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[0]); |
100 | zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[1]); | |
b62a8d9b | 101 | zfcp_erp_lun_access_denied(sdev, "fsadl_1", req); |
553448f6 CS |
102 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
103 | } | |
104 | ||
105 | static void zfcp_fsf_class_not_supp(struct zfcp_fsf_req *req) | |
106 | { | |
ff3b24fa CS |
107 | dev_err(&req->adapter->ccw_device->dev, "FCP device not " |
108 | "operational because of an unsupported FC class\n"); | |
5ffd51a5 | 109 | zfcp_erp_adapter_shutdown(req->adapter, 0, "fscns_1", req); |
553448f6 CS |
110 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
111 | } | |
112 | ||
c41f8cbd SS |
113 | /** |
114 | * zfcp_fsf_req_free - free memory used by fsf request | |
115 | * @fsf_req: pointer to struct zfcp_fsf_req | |
1da177e4 | 116 | */ |
c41f8cbd | 117 | void zfcp_fsf_req_free(struct zfcp_fsf_req *req) |
1da177e4 | 118 | { |
c41f8cbd | 119 | if (likely(req->pool)) { |
a4623c46 SS |
120 | if (likely(req->qtcb)) |
121 | mempool_free(req->qtcb, req->adapter->pool.qtcb_pool); | |
c41f8cbd | 122 | mempool_free(req, req->pool); |
dd52e0ea HC |
123 | return; |
124 | } | |
125 | ||
a4623c46 SS |
126 | if (likely(req->qtcb)) |
127 | kmem_cache_free(zfcp_data.qtcb_cache, req->qtcb); | |
128 | kfree(req); | |
1da177e4 LT |
129 | } |
130 | ||
c41f8cbd | 131 | static void zfcp_fsf_status_read_port_closed(struct zfcp_fsf_req *req) |
1da177e4 | 132 | { |
ecf0c772 | 133 | unsigned long flags; |
c41f8cbd SS |
134 | struct fsf_status_read_buffer *sr_buf = req->data; |
135 | struct zfcp_adapter *adapter = req->adapter; | |
136 | struct zfcp_port *port; | |
800c0cad | 137 | int d_id = ntoh24(sr_buf->d_id); |
1da177e4 | 138 | |
ecf0c772 SS |
139 | read_lock_irqsave(&adapter->port_list_lock, flags); |
140 | list_for_each_entry(port, &adapter->port_list, list) | |
c41f8cbd | 141 | if (port->d_id == d_id) { |
5ffd51a5 | 142 | zfcp_erp_port_reopen(port, 0, "fssrpc1", req); |
ecf0c772 | 143 | break; |
c41f8cbd | 144 | } |
ecf0c772 | 145 | read_unlock_irqrestore(&adapter->port_list_lock, flags); |
1da177e4 LT |
146 | } |
147 | ||
5ffd51a5 | 148 | static void zfcp_fsf_link_down_info_eval(struct zfcp_fsf_req *req, char *id, |
c41f8cbd | 149 | struct fsf_link_down_info *link_down) |
aef4a983 | 150 | { |
c41f8cbd | 151 | struct zfcp_adapter *adapter = req->adapter; |
698ec016 | 152 | |
c41f8cbd | 153 | if (atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED) |
ee69ab7a MS |
154 | return; |
155 | ||
156 | atomic_set_mask(ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED, &adapter->status); | |
70932935 | 157 | |
a2fa0aed | 158 | zfcp_scsi_schedule_rports_block(adapter); |
ee69ab7a | 159 | |
c41f8cbd | 160 | if (!link_down) |
2f8f3ed5 | 161 | goto out; |
ee69ab7a | 162 | |
aef4a983 MS |
163 | switch (link_down->error_code) { |
164 | case FSF_PSQ_LINK_NO_LIGHT: | |
c41f8cbd | 165 | dev_warn(&req->adapter->ccw_device->dev, |
ff3b24fa CS |
166 | "There is no light signal from the local " |
167 | "fibre channel cable\n"); | |
aef4a983 MS |
168 | break; |
169 | case FSF_PSQ_LINK_WRAP_PLUG: | |
c41f8cbd | 170 | dev_warn(&req->adapter->ccw_device->dev, |
ff3b24fa CS |
171 | "There is a wrap plug instead of a fibre " |
172 | "channel cable\n"); | |
aef4a983 MS |
173 | break; |
174 | case FSF_PSQ_LINK_NO_FCP: | |
c41f8cbd | 175 | dev_warn(&req->adapter->ccw_device->dev, |
ff3b24fa CS |
176 | "The adjacent fibre channel node does not " |
177 | "support FCP\n"); | |
aef4a983 MS |
178 | break; |
179 | case FSF_PSQ_LINK_FIRMWARE_UPDATE: | |
c41f8cbd | 180 | dev_warn(&req->adapter->ccw_device->dev, |
ff3b24fa CS |
181 | "The FCP device is suspended because of a " |
182 | "firmware update\n"); | |
553448f6 | 183 | break; |
aef4a983 | 184 | case FSF_PSQ_LINK_INVALID_WWPN: |
c41f8cbd | 185 | dev_warn(&req->adapter->ccw_device->dev, |
ff3b24fa CS |
186 | "The FCP device detected a WWPN that is " |
187 | "duplicate or not valid\n"); | |
aef4a983 MS |
188 | break; |
189 | case FSF_PSQ_LINK_NO_NPIV_SUPPORT: | |
c41f8cbd | 190 | dev_warn(&req->adapter->ccw_device->dev, |
ff3b24fa | 191 | "The fibre channel fabric does not support NPIV\n"); |
aef4a983 MS |
192 | break; |
193 | case FSF_PSQ_LINK_NO_FCP_RESOURCES: | |
c41f8cbd | 194 | dev_warn(&req->adapter->ccw_device->dev, |
ff3b24fa | 195 | "The FCP adapter cannot support more NPIV ports\n"); |
aef4a983 MS |
196 | break; |
197 | case FSF_PSQ_LINK_NO_FABRIC_RESOURCES: | |
c41f8cbd | 198 | dev_warn(&req->adapter->ccw_device->dev, |
ff3b24fa CS |
199 | "The adjacent switch cannot support " |
200 | "more NPIV ports\n"); | |
aef4a983 MS |
201 | break; |
202 | case FSF_PSQ_LINK_FABRIC_LOGIN_UNABLE: | |
c41f8cbd | 203 | dev_warn(&req->adapter->ccw_device->dev, |
ff3b24fa CS |
204 | "The FCP adapter could not log in to the " |
205 | "fibre channel fabric\n"); | |
aef4a983 MS |
206 | break; |
207 | case FSF_PSQ_LINK_WWPN_ASSIGNMENT_CORRUPTED: | |
c41f8cbd | 208 | dev_warn(&req->adapter->ccw_device->dev, |
ff3b24fa CS |
209 | "The WWPN assignment file on the FCP adapter " |
210 | "has been damaged\n"); | |
aef4a983 MS |
211 | break; |
212 | case FSF_PSQ_LINK_MODE_TABLE_CURRUPTED: | |
c41f8cbd | 213 | dev_warn(&req->adapter->ccw_device->dev, |
ff3b24fa CS |
214 | "The mode table on the FCP adapter " |
215 | "has been damaged\n"); | |
aef4a983 MS |
216 | break; |
217 | case FSF_PSQ_LINK_NO_WWPN_ASSIGNMENT: | |
c41f8cbd | 218 | dev_warn(&req->adapter->ccw_device->dev, |
ff3b24fa CS |
219 | "All NPIV ports on the FCP adapter have " |
220 | "been assigned\n"); | |
aef4a983 MS |
221 | break; |
222 | default: | |
c41f8cbd | 223 | dev_warn(&req->adapter->ccw_device->dev, |
ff3b24fa CS |
224 | "The link between the FCP adapter and " |
225 | "the FC fabric is down\n"); | |
aef4a983 | 226 | } |
c41f8cbd SS |
227 | out: |
228 | zfcp_erp_adapter_failed(adapter, id, req); | |
aef4a983 MS |
229 | } |
230 | ||
c41f8cbd | 231 | static void zfcp_fsf_status_read_link_down(struct zfcp_fsf_req *req) |
1da177e4 | 232 | { |
c41f8cbd SS |
233 | struct fsf_status_read_buffer *sr_buf = req->data; |
234 | struct fsf_link_down_info *ldi = | |
235 | (struct fsf_link_down_info *) &sr_buf->payload; | |
1da177e4 | 236 | |
c41f8cbd SS |
237 | switch (sr_buf->status_subtype) { |
238 | case FSF_STATUS_READ_SUB_NO_PHYSICAL_LINK: | |
5ffd51a5 | 239 | zfcp_fsf_link_down_info_eval(req, "fssrld1", ldi); |
1da177e4 | 240 | break; |
c41f8cbd | 241 | case FSF_STATUS_READ_SUB_FDISC_FAILED: |
5ffd51a5 | 242 | zfcp_fsf_link_down_info_eval(req, "fssrld2", ldi); |
1da177e4 | 243 | break; |
c41f8cbd | 244 | case FSF_STATUS_READ_SUB_FIRMWARE_UPDATE: |
5ffd51a5 | 245 | zfcp_fsf_link_down_info_eval(req, "fssrld3", NULL); |
c41f8cbd SS |
246 | }; |
247 | } | |
1da177e4 | 248 | |
c41f8cbd SS |
249 | static void zfcp_fsf_status_read_handler(struct zfcp_fsf_req *req) |
250 | { | |
251 | struct zfcp_adapter *adapter = req->adapter; | |
252 | struct fsf_status_read_buffer *sr_buf = req->data; | |
1da177e4 | 253 | |
c41f8cbd | 254 | if (req->status & ZFCP_STATUS_FSFREQ_DISMISSED) { |
5771710b | 255 | zfcp_dbf_hba_fsf_unsol("dism", adapter->dbf, sr_buf); |
a4623c46 | 256 | mempool_free(sr_buf, adapter->pool.status_read_data); |
c41f8cbd SS |
257 | zfcp_fsf_req_free(req); |
258 | return; | |
259 | } | |
1da177e4 | 260 | |
5771710b | 261 | zfcp_dbf_hba_fsf_unsol("read", adapter->dbf, sr_buf); |
1da177e4 | 262 | |
c41f8cbd SS |
263 | switch (sr_buf->status_type) { |
264 | case FSF_STATUS_READ_PORT_CLOSED: | |
265 | zfcp_fsf_status_read_port_closed(req); | |
1da177e4 | 266 | break; |
c41f8cbd SS |
267 | case FSF_STATUS_READ_INCOMING_ELS: |
268 | zfcp_fc_incoming_els(req); | |
1da177e4 | 269 | break; |
c41f8cbd | 270 | case FSF_STATUS_READ_SENSE_DATA_AVAIL: |
1da177e4 | 271 | break; |
c41f8cbd | 272 | case FSF_STATUS_READ_BIT_ERROR_THRESHOLD: |
ff3b24fa CS |
273 | dev_warn(&adapter->ccw_device->dev, |
274 | "The error threshold for checksum statistics " | |
275 | "has been exceeded\n"); | |
5771710b | 276 | zfcp_dbf_hba_berr(adapter->dbf, req); |
1da177e4 | 277 | break; |
c41f8cbd SS |
278 | case FSF_STATUS_READ_LINK_DOWN: |
279 | zfcp_fsf_status_read_link_down(req); | |
2d1e547f | 280 | zfcp_fc_enqueue_event(adapter, FCH_EVT_LINKDOWN, 0); |
c41f8cbd SS |
281 | break; |
282 | case FSF_STATUS_READ_LINK_UP: | |
283 | dev_info(&adapter->ccw_device->dev, | |
ff3b24fa | 284 | "The local link has been restored\n"); |
c41f8cbd | 285 | /* All ports should be marked as ready to run again */ |
5ffd51a5 | 286 | zfcp_erp_modify_adapter_status(adapter, "fssrh_1", NULL, |
c41f8cbd SS |
287 | ZFCP_STATUS_COMMON_RUNNING, |
288 | ZFCP_SET); | |
289 | zfcp_erp_adapter_reopen(adapter, | |
290 | ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED | | |
291 | ZFCP_STATUS_COMMON_ERP_FAILED, | |
5ffd51a5 | 292 | "fssrh_2", req); |
2d1e547f SS |
293 | zfcp_fc_enqueue_event(adapter, FCH_EVT_LINKUP, 0); |
294 | ||
c41f8cbd SS |
295 | break; |
296 | case FSF_STATUS_READ_NOTIFICATION_LOST: | |
297 | if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_ACT_UPDATED) | |
5ffd51a5 SS |
298 | zfcp_erp_adapter_access_changed(adapter, "fssrh_3", |
299 | req); | |
c41f8cbd | 300 | if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_INCOMING_ELS) |
9eae07ef | 301 | queue_work(adapter->work_queue, &adapter->scan_work); |
c41f8cbd SS |
302 | break; |
303 | case FSF_STATUS_READ_CFDC_UPDATED: | |
5ffd51a5 | 304 | zfcp_erp_adapter_access_changed(adapter, "fssrh_4", req); |
c41f8cbd SS |
305 | break; |
306 | case FSF_STATUS_READ_FEATURE_UPDATE_ALERT: | |
307 | adapter->adapter_features = sr_buf->payload.word[0]; | |
1da177e4 | 308 | break; |
1da177e4 LT |
309 | } |
310 | ||
a4623c46 | 311 | mempool_free(sr_buf, adapter->pool.status_read_data); |
c41f8cbd | 312 | zfcp_fsf_req_free(req); |
1da177e4 | 313 | |
c41f8cbd | 314 | atomic_inc(&adapter->stat_miss); |
4544683a | 315 | queue_work(adapter->work_queue, &adapter->stat_work); |
c41f8cbd | 316 | } |
1da177e4 | 317 | |
c41f8cbd SS |
318 | static void zfcp_fsf_fsfstatus_qual_eval(struct zfcp_fsf_req *req) |
319 | { | |
320 | switch (req->qtcb->header.fsf_status_qual.word[0]) { | |
321 | case FSF_SQ_FCP_RSP_AVAILABLE: | |
322 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: | |
323 | case FSF_SQ_NO_RETRY_POSSIBLE: | |
324 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: | |
325 | return; | |
326 | case FSF_SQ_COMMAND_ABORTED: | |
c41f8cbd SS |
327 | break; |
328 | case FSF_SQ_NO_RECOM: | |
329 | dev_err(&req->adapter->ccw_device->dev, | |
ff3b24fa CS |
330 | "The FCP adapter reported a problem " |
331 | "that cannot be recovered\n"); | |
339f4f4e | 332 | zfcp_qdio_siosl(req->adapter); |
5ffd51a5 | 333 | zfcp_erp_adapter_shutdown(req->adapter, 0, "fsfsqe1", req); |
c41f8cbd SS |
334 | break; |
335 | } | |
336 | /* all non-return stats set FSFREQ_ERROR*/ | |
337 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; | |
1da177e4 LT |
338 | } |
339 | ||
c41f8cbd | 340 | static void zfcp_fsf_fsfstatus_eval(struct zfcp_fsf_req *req) |
1da177e4 | 341 | { |
c41f8cbd SS |
342 | if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) |
343 | return; | |
1da177e4 | 344 | |
c41f8cbd SS |
345 | switch (req->qtcb->header.fsf_status) { |
346 | case FSF_UNKNOWN_COMMAND: | |
347 | dev_err(&req->adapter->ccw_device->dev, | |
ff3b24fa | 348 | "The FCP adapter does not recognize the command 0x%x\n", |
c41f8cbd | 349 | req->qtcb->header.fsf_command); |
5ffd51a5 | 350 | zfcp_erp_adapter_shutdown(req->adapter, 0, "fsfse_1", req); |
c41f8cbd SS |
351 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
352 | break; | |
353 | case FSF_ADAPTER_STATUS_AVAILABLE: | |
354 | zfcp_fsf_fsfstatus_qual_eval(req); | |
355 | break; | |
356 | } | |
357 | } | |
1da177e4 | 358 | |
c41f8cbd SS |
359 | static void zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *req) |
360 | { | |
361 | struct zfcp_adapter *adapter = req->adapter; | |
362 | struct fsf_qtcb *qtcb = req->qtcb; | |
363 | union fsf_prot_status_qual *psq = &qtcb->prefix.prot_status_qual; | |
1da177e4 | 364 | |
5771710b | 365 | zfcp_dbf_hba_fsf_response(req); |
1da177e4 | 366 | |
c41f8cbd | 367 | if (req->status & ZFCP_STATUS_FSFREQ_DISMISSED) { |
4c571c65 | 368 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
c41f8cbd SS |
369 | return; |
370 | } | |
1da177e4 | 371 | |
c41f8cbd SS |
372 | switch (qtcb->prefix.prot_status) { |
373 | case FSF_PROT_GOOD: | |
374 | case FSF_PROT_FSF_STATUS_PRESENTED: | |
375 | return; | |
376 | case FSF_PROT_QTCB_VERSION_ERROR: | |
377 | dev_err(&adapter->ccw_device->dev, | |
ff3b24fa CS |
378 | "QTCB version 0x%x not supported by FCP adapter " |
379 | "(0x%x to 0x%x)\n", FSF_QTCB_CURRENT_VERSION, | |
380 | psq->word[0], psq->word[1]); | |
5ffd51a5 | 381 | zfcp_erp_adapter_shutdown(adapter, 0, "fspse_1", req); |
c41f8cbd SS |
382 | break; |
383 | case FSF_PROT_ERROR_STATE: | |
384 | case FSF_PROT_SEQ_NUMB_ERROR: | |
5ffd51a5 | 385 | zfcp_erp_adapter_reopen(adapter, 0, "fspse_2", req); |
4c571c65 | 386 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
c41f8cbd SS |
387 | break; |
388 | case FSF_PROT_UNSUPP_QTCB_TYPE: | |
389 | dev_err(&adapter->ccw_device->dev, | |
ff3b24fa | 390 | "The QTCB type is not supported by the FCP adapter\n"); |
5ffd51a5 | 391 | zfcp_erp_adapter_shutdown(adapter, 0, "fspse_3", req); |
c41f8cbd SS |
392 | break; |
393 | case FSF_PROT_HOST_CONNECTION_INITIALIZING: | |
394 | atomic_set_mask(ZFCP_STATUS_ADAPTER_HOST_CON_INIT, | |
395 | &adapter->status); | |
396 | break; | |
397 | case FSF_PROT_DUPLICATE_REQUEST_ID: | |
398 | dev_err(&adapter->ccw_device->dev, | |
ff3b24fa | 399 | "0x%Lx is an ambiguous request identifier\n", |
c41f8cbd | 400 | (unsigned long long)qtcb->bottom.support.req_handle); |
5ffd51a5 | 401 | zfcp_erp_adapter_shutdown(adapter, 0, "fspse_4", req); |
c41f8cbd SS |
402 | break; |
403 | case FSF_PROT_LINK_DOWN: | |
5ffd51a5 SS |
404 | zfcp_fsf_link_down_info_eval(req, "fspse_5", |
405 | &psq->link_down_info); | |
452b505c | 406 | /* go through reopen to flush pending requests */ |
5ffd51a5 | 407 | zfcp_erp_adapter_reopen(adapter, 0, "fspse_6", req); |
c41f8cbd SS |
408 | break; |
409 | case FSF_PROT_REEST_QUEUE: | |
410 | /* All ports should be marked as ready to run again */ | |
5ffd51a5 | 411 | zfcp_erp_modify_adapter_status(adapter, "fspse_7", NULL, |
c41f8cbd SS |
412 | ZFCP_STATUS_COMMON_RUNNING, |
413 | ZFCP_SET); | |
414 | zfcp_erp_adapter_reopen(adapter, | |
415 | ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED | | |
5ffd51a5 SS |
416 | ZFCP_STATUS_COMMON_ERP_FAILED, |
417 | "fspse_8", req); | |
c41f8cbd SS |
418 | break; |
419 | default: | |
420 | dev_err(&adapter->ccw_device->dev, | |
ff3b24fa | 421 | "0x%x is not a valid transfer protocol status\n", |
c41f8cbd | 422 | qtcb->prefix.prot_status); |
339f4f4e | 423 | zfcp_qdio_siosl(adapter); |
5ffd51a5 | 424 | zfcp_erp_adapter_shutdown(adapter, 0, "fspse_9", req); |
c41f8cbd SS |
425 | } |
426 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; | |
1da177e4 LT |
427 | } |
428 | ||
c41f8cbd SS |
429 | /** |
430 | * zfcp_fsf_req_complete - process completion of a FSF request | |
431 | * @fsf_req: The FSF request that has been completed. | |
432 | * | |
433 | * When a request has been completed either from the FCP adapter, | |
434 | * or it has been dismissed due to a queue shutdown, this function | |
435 | * is called to process the completion status and trigger further | |
436 | * events related to the FSF request. | |
437 | */ | |
bd63eaf4 | 438 | static void zfcp_fsf_req_complete(struct zfcp_fsf_req *req) |
1da177e4 | 439 | { |
c41f8cbd SS |
440 | if (unlikely(req->fsf_command == FSF_QTCB_UNSOLICITED_STATUS)) { |
441 | zfcp_fsf_status_read_handler(req); | |
442 | return; | |
443 | } | |
1da177e4 | 444 | |
c41f8cbd SS |
445 | del_timer(&req->timer); |
446 | zfcp_fsf_protstatus_eval(req); | |
447 | zfcp_fsf_fsfstatus_eval(req); | |
448 | req->handler(req); | |
1da177e4 | 449 | |
c41f8cbd | 450 | if (req->erp_action) |
287ac01a | 451 | zfcp_erp_notify(req->erp_action, 0); |
1da177e4 | 452 | |
c41f8cbd SS |
453 | if (likely(req->status & ZFCP_STATUS_FSFREQ_CLEANUP)) |
454 | zfcp_fsf_req_free(req); | |
455 | else | |
058b8647 | 456 | complete(&req->completion); |
c41f8cbd | 457 | } |
1da177e4 | 458 | |
bd63eaf4 SS |
459 | /** |
460 | * zfcp_fsf_req_dismiss_all - dismiss all fsf requests | |
461 | * @adapter: pointer to struct zfcp_adapter | |
462 | * | |
463 | * Never ever call this without shutting down the adapter first. | |
464 | * Otherwise the adapter would continue using and corrupting s390 storage. | |
465 | * Included BUG_ON() call to ensure this is done. | |
466 | * ERP is supposed to be the only user of this function. | |
467 | */ | |
468 | void zfcp_fsf_req_dismiss_all(struct zfcp_adapter *adapter) | |
469 | { | |
470 | struct zfcp_fsf_req *req, *tmp; | |
bd63eaf4 | 471 | LIST_HEAD(remove_queue); |
bd63eaf4 SS |
472 | |
473 | BUG_ON(atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP); | |
b6bd2fb9 | 474 | zfcp_reqlist_move(adapter->req_list, &remove_queue); |
bd63eaf4 SS |
475 | |
476 | list_for_each_entry_safe(req, tmp, &remove_queue, list) { | |
477 | list_del(&req->list); | |
478 | req->status |= ZFCP_STATUS_FSFREQ_DISMISSED; | |
479 | zfcp_fsf_req_complete(req); | |
480 | } | |
481 | } | |
482 | ||
c41f8cbd SS |
483 | static int zfcp_fsf_exchange_config_evaluate(struct zfcp_fsf_req *req) |
484 | { | |
9d05ce2c | 485 | struct fsf_qtcb_bottom_config *bottom = &req->qtcb->bottom.config; |
c41f8cbd SS |
486 | struct zfcp_adapter *adapter = req->adapter; |
487 | struct Scsi_Host *shost = adapter->scsi_host; | |
9d05ce2c | 488 | struct fc_els_flogi *nsp, *plogi; |
1da177e4 | 489 | |
9d05ce2c CS |
490 | /* adjust pointers for missing command code */ |
491 | nsp = (struct fc_els_flogi *) ((u8 *)&bottom->nport_serv_param | |
492 | - sizeof(u32)); | |
493 | plogi = (struct fc_els_flogi *) ((u8 *)&bottom->plogi_payload | |
494 | - sizeof(u32)); | |
1da177e4 | 495 | |
c41f8cbd SS |
496 | if (req->data) |
497 | memcpy(req->data, bottom, sizeof(*bottom)); | |
498 | ||
9d05ce2c CS |
499 | fc_host_port_name(shost) = nsp->fl_wwpn; |
500 | fc_host_node_name(shost) = nsp->fl_wwnn; | |
800c0cad | 501 | fc_host_port_id(shost) = ntoh24(bottom->s_id); |
c41f8cbd SS |
502 | fc_host_speed(shost) = bottom->fc_link_speed; |
503 | fc_host_supported_classes(shost) = FC_COS_CLASS2 | FC_COS_CLASS3; | |
504 | ||
505 | adapter->hydra_version = bottom->adapter_type; | |
faf4cd85 | 506 | adapter->timer_ticks = bottom->timer_interval & ZFCP_FSF_TIMER_INT_MASK; |
8d88cf3f CS |
507 | adapter->stat_read_buf_num = max(bottom->status_read_buf_num, |
508 | (u16)FSF_STATUS_READS_RECOM); | |
c41f8cbd SS |
509 | |
510 | if (fc_host_permanent_port_name(shost) == -1) | |
511 | fc_host_permanent_port_name(shost) = fc_host_port_name(shost); | |
512 | ||
513 | switch (bottom->fc_topology) { | |
514 | case FSF_TOPO_P2P: | |
800c0cad | 515 | adapter->peer_d_id = ntoh24(bottom->peer_d_id); |
9d05ce2c CS |
516 | adapter->peer_wwpn = plogi->fl_wwpn; |
517 | adapter->peer_wwnn = plogi->fl_wwnn; | |
c41f8cbd | 518 | fc_host_port_type(shost) = FC_PORTTYPE_PTP; |
c41f8cbd SS |
519 | break; |
520 | case FSF_TOPO_FABRIC: | |
521 | fc_host_port_type(shost) = FC_PORTTYPE_NPORT; | |
c41f8cbd SS |
522 | break; |
523 | case FSF_TOPO_AL: | |
524 | fc_host_port_type(shost) = FC_PORTTYPE_NLPORT; | |
dceab655 | 525 | /* fall through */ |
c41f8cbd | 526 | default: |
c41f8cbd | 527 | dev_err(&adapter->ccw_device->dev, |
ff3b24fa CS |
528 | "Unknown or unsupported arbitrated loop " |
529 | "fibre channel topology detected\n"); | |
5ffd51a5 | 530 | zfcp_erp_adapter_shutdown(adapter, 0, "fsece_1", req); |
c41f8cbd | 531 | return -EIO; |
1da177e4 | 532 | } |
c41f8cbd | 533 | |
ef3eb71d FB |
534 | zfcp_scsi_set_prot(adapter); |
535 | ||
1da177e4 LT |
536 | return 0; |
537 | } | |
538 | ||
c41f8cbd | 539 | static void zfcp_fsf_exchange_config_data_handler(struct zfcp_fsf_req *req) |
553448f6 CS |
540 | { |
541 | struct zfcp_adapter *adapter = req->adapter; | |
c41f8cbd SS |
542 | struct fsf_qtcb *qtcb = req->qtcb; |
543 | struct fsf_qtcb_bottom_config *bottom = &qtcb->bottom.config; | |
544 | struct Scsi_Host *shost = adapter->scsi_host; | |
553448f6 | 545 | |
c41f8cbd SS |
546 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
547 | return; | |
1da177e4 | 548 | |
c41f8cbd SS |
549 | adapter->fsf_lic_version = bottom->lic_version; |
550 | adapter->adapter_features = bottom->adapter_features; | |
551 | adapter->connection_features = bottom->connection_features; | |
552 | adapter->peer_wwpn = 0; | |
553 | adapter->peer_wwnn = 0; | |
554 | adapter->peer_d_id = 0; | |
8a36e453 | 555 | |
c41f8cbd SS |
556 | switch (qtcb->header.fsf_status) { |
557 | case FSF_GOOD: | |
558 | if (zfcp_fsf_exchange_config_evaluate(req)) | |
559 | return; | |
1da177e4 | 560 | |
c41f8cbd SS |
561 | if (bottom->max_qtcb_size < sizeof(struct fsf_qtcb)) { |
562 | dev_err(&adapter->ccw_device->dev, | |
ff3b24fa CS |
563 | "FCP adapter maximum QTCB size (%d bytes) " |
564 | "is too small\n", | |
565 | bottom->max_qtcb_size); | |
5ffd51a5 | 566 | zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh1", req); |
c41f8cbd SS |
567 | return; |
568 | } | |
569 | atomic_set_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK, | |
570 | &adapter->status); | |
1da177e4 | 571 | break; |
c41f8cbd SS |
572 | case FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE: |
573 | fc_host_node_name(shost) = 0; | |
574 | fc_host_port_name(shost) = 0; | |
575 | fc_host_port_id(shost) = 0; | |
576 | fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; | |
577 | fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN; | |
578 | adapter->hydra_version = 0; | |
1da177e4 | 579 | |
c41f8cbd SS |
580 | atomic_set_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK, |
581 | &adapter->status); | |
1da177e4 | 582 | |
5ffd51a5 | 583 | zfcp_fsf_link_down_info_eval(req, "fsecdh2", |
c41f8cbd | 584 | &qtcb->header.fsf_status_qual.link_down_info); |
1da177e4 | 585 | break; |
c41f8cbd | 586 | default: |
5ffd51a5 | 587 | zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh3", req); |
c41f8cbd SS |
588 | return; |
589 | } | |
1da177e4 | 590 | |
c41f8cbd SS |
591 | if (adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT) { |
592 | adapter->hardware_version = bottom->hardware_version; | |
593 | memcpy(fc_host_serial_number(shost), bottom->serial_number, | |
594 | min(FC_SERIAL_NUMBER_SIZE, 17)); | |
595 | EBCASC(fc_host_serial_number(shost), | |
596 | min(FC_SERIAL_NUMBER_SIZE, 17)); | |
597 | } | |
1da177e4 | 598 | |
c41f8cbd SS |
599 | if (FSF_QTCB_CURRENT_VERSION < bottom->low_qtcb_version) { |
600 | dev_err(&adapter->ccw_device->dev, | |
ff3b24fa CS |
601 | "The FCP adapter only supports newer " |
602 | "control block versions\n"); | |
5ffd51a5 | 603 | zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh4", req); |
c41f8cbd SS |
604 | return; |
605 | } | |
606 | if (FSF_QTCB_CURRENT_VERSION > bottom->high_qtcb_version) { | |
607 | dev_err(&adapter->ccw_device->dev, | |
ff3b24fa CS |
608 | "The FCP adapter only supports older " |
609 | "control block versions\n"); | |
5ffd51a5 | 610 | zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh5", req); |
c41f8cbd SS |
611 | } |
612 | } | |
1da177e4 | 613 | |
c41f8cbd SS |
614 | static void zfcp_fsf_exchange_port_evaluate(struct zfcp_fsf_req *req) |
615 | { | |
616 | struct zfcp_adapter *adapter = req->adapter; | |
617 | struct fsf_qtcb_bottom_port *bottom = &req->qtcb->bottom.port; | |
618 | struct Scsi_Host *shost = adapter->scsi_host; | |
1da177e4 | 619 | |
c41f8cbd SS |
620 | if (req->data) |
621 | memcpy(req->data, bottom, sizeof(*bottom)); | |
9eb69aff | 622 | |
0282985d | 623 | if (adapter->connection_features & FSF_FEATURE_NPIV_MODE) { |
c41f8cbd | 624 | fc_host_permanent_port_name(shost) = bottom->wwpn; |
0282985d CS |
625 | fc_host_port_type(shost) = FC_PORTTYPE_NPIV; |
626 | } else | |
c41f8cbd SS |
627 | fc_host_permanent_port_name(shost) = fc_host_port_name(shost); |
628 | fc_host_maxframe_size(shost) = bottom->maximum_frame_size; | |
629 | fc_host_supported_speeds(shost) = bottom->supported_speed; | |
2d8e62bb CS |
630 | memcpy(fc_host_supported_fc4s(shost), bottom->supported_fc4_types, |
631 | FC_FC4_LIST_SIZE); | |
632 | memcpy(fc_host_active_fc4s(shost), bottom->active_fc4_types, | |
633 | FC_FC4_LIST_SIZE); | |
c41f8cbd | 634 | } |
1da177e4 | 635 | |
c41f8cbd SS |
636 | static void zfcp_fsf_exchange_port_data_handler(struct zfcp_fsf_req *req) |
637 | { | |
c41f8cbd SS |
638 | struct fsf_qtcb *qtcb = req->qtcb; |
639 | ||
640 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) | |
641 | return; | |
642 | ||
643 | switch (qtcb->header.fsf_status) { | |
644 | case FSF_GOOD: | |
645 | zfcp_fsf_exchange_port_evaluate(req); | |
c41f8cbd SS |
646 | break; |
647 | case FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE: | |
648 | zfcp_fsf_exchange_port_evaluate(req); | |
5ffd51a5 | 649 | zfcp_fsf_link_down_info_eval(req, "fsepdh1", |
c41f8cbd | 650 | &qtcb->header.fsf_status_qual.link_down_info); |
aef4a983 | 651 | break; |
1da177e4 | 652 | } |
c41f8cbd | 653 | } |
d26ab06e | 654 | |
a4623c46 | 655 | static struct zfcp_fsf_req *zfcp_fsf_alloc(mempool_t *pool) |
c41f8cbd SS |
656 | { |
657 | struct zfcp_fsf_req *req; | |
a4623c46 SS |
658 | |
659 | if (likely(pool)) | |
660 | req = mempool_alloc(pool, GFP_ATOMIC); | |
661 | else | |
662 | req = kmalloc(sizeof(*req), GFP_ATOMIC); | |
663 | ||
664 | if (unlikely(!req)) | |
c41f8cbd | 665 | return NULL; |
a4623c46 | 666 | |
c41f8cbd | 667 | memset(req, 0, sizeof(*req)); |
88f2a977 | 668 | req->pool = pool; |
c41f8cbd SS |
669 | return req; |
670 | } | |
671 | ||
a4623c46 | 672 | static struct fsf_qtcb *zfcp_qtcb_alloc(mempool_t *pool) |
c41f8cbd | 673 | { |
a4623c46 | 674 | struct fsf_qtcb *qtcb; |
c41f8cbd SS |
675 | |
676 | if (likely(pool)) | |
677 | qtcb = mempool_alloc(pool, GFP_ATOMIC); | |
678 | else | |
a4623c46 SS |
679 | qtcb = kmem_cache_alloc(zfcp_data.qtcb_cache, GFP_ATOMIC); |
680 | ||
c41f8cbd SS |
681 | if (unlikely(!qtcb)) |
682 | return NULL; | |
683 | ||
684 | memset(qtcb, 0, sizeof(*qtcb)); | |
a4623c46 | 685 | return qtcb; |
c41f8cbd SS |
686 | } |
687 | ||
564e1c86 | 688 | static struct zfcp_fsf_req *zfcp_fsf_req_create(struct zfcp_qdio *qdio, |
1674b405 CS |
689 | u32 fsf_cmd, u32 sbtype, |
690 | mempool_t *pool) | |
1da177e4 | 691 | { |
564e1c86 | 692 | struct zfcp_adapter *adapter = qdio->adapter; |
a4623c46 | 693 | struct zfcp_fsf_req *req = zfcp_fsf_alloc(pool); |
1da177e4 | 694 | |
c41f8cbd | 695 | if (unlikely(!req)) |
1e9b1643 | 696 | return ERR_PTR(-ENOMEM); |
1da177e4 | 697 | |
c41f8cbd SS |
698 | if (adapter->req_no == 0) |
699 | adapter->req_no++; | |
1da177e4 | 700 | |
c41f8cbd SS |
701 | INIT_LIST_HEAD(&req->list); |
702 | init_timer(&req->timer); | |
058b8647 | 703 | init_completion(&req->completion); |
1da177e4 | 704 | |
c41f8cbd SS |
705 | req->adapter = adapter; |
706 | req->fsf_command = fsf_cmd; | |
52bfb558 | 707 | req->req_id = adapter->req_no; |
c41f8cbd | 708 | |
a4623c46 SS |
709 | if (likely(fsf_cmd != FSF_QTCB_UNSOLICITED_STATUS)) { |
710 | if (likely(pool)) | |
711 | req->qtcb = zfcp_qtcb_alloc(adapter->pool.qtcb_pool); | |
712 | else | |
713 | req->qtcb = zfcp_qtcb_alloc(NULL); | |
714 | ||
715 | if (unlikely(!req->qtcb)) { | |
716 | zfcp_fsf_req_free(req); | |
717 | return ERR_PTR(-ENOMEM); | |
718 | } | |
719 | ||
5bdecd22 | 720 | req->seq_no = adapter->fsf_req_seq_no; |
564e1c86 | 721 | req->qtcb->prefix.req_seq_no = adapter->fsf_req_seq_no; |
c41f8cbd SS |
722 | req->qtcb->prefix.req_id = req->req_id; |
723 | req->qtcb->prefix.ulp_info = 26; | |
724 | req->qtcb->prefix.qtcb_type = fsf_qtcb_type[req->fsf_command]; | |
725 | req->qtcb->prefix.qtcb_version = FSF_QTCB_CURRENT_VERSION; | |
726 | req->qtcb->header.req_handle = req->req_id; | |
727 | req->qtcb->header.fsf_command = req->fsf_command; | |
c41f8cbd SS |
728 | } |
729 | ||
1674b405 CS |
730 | zfcp_qdio_req_init(adapter->qdio, &req->qdio_req, req->req_id, sbtype, |
731 | req->qtcb, sizeof(struct fsf_qtcb)); | |
732 | ||
c41f8cbd | 733 | return req; |
1da177e4 LT |
734 | } |
735 | ||
c41f8cbd SS |
736 | static int zfcp_fsf_req_send(struct zfcp_fsf_req *req) |
737 | { | |
738 | struct zfcp_adapter *adapter = req->adapter; | |
564e1c86 | 739 | struct zfcp_qdio *qdio = adapter->qdio; |
b6bd2fb9 | 740 | int with_qtcb = (req->qtcb != NULL); |
e60a6d69 | 741 | int req_id = req->req_id; |
c41f8cbd | 742 | |
b6bd2fb9 | 743 | zfcp_reqlist_add(adapter->req_list, req); |
c41f8cbd | 744 | |
706eca49 | 745 | req->qdio_req.qdio_outb_usage = atomic_read(&qdio->req_q_free); |
c41f8cbd | 746 | req->issued = get_clock(); |
34c2b712 | 747 | if (zfcp_qdio_send(qdio, &req->qdio_req)) { |
c41f8cbd | 748 | del_timer(&req->timer); |
3765138a | 749 | /* lookup request again, list might have changed */ |
b6bd2fb9 | 750 | zfcp_reqlist_find_rm(adapter->req_list, req_id); |
5ffd51a5 | 751 | zfcp_erp_adapter_reopen(adapter, 0, "fsrs__1", req); |
c41f8cbd SS |
752 | return -EIO; |
753 | } | |
754 | ||
755 | /* Don't increase for unsolicited status */ | |
135ea137 | 756 | if (with_qtcb) |
c41f8cbd | 757 | adapter->fsf_req_seq_no++; |
52bfb558 | 758 | adapter->req_no++; |
c41f8cbd SS |
759 | |
760 | return 0; | |
761 | } | |
762 | ||
763 | /** | |
764 | * zfcp_fsf_status_read - send status read request | |
765 | * @adapter: pointer to struct zfcp_adapter | |
766 | * @req_flags: request flags | |
767 | * Returns: 0 on success, ERROR otherwise | |
1da177e4 | 768 | */ |
564e1c86 | 769 | int zfcp_fsf_status_read(struct zfcp_qdio *qdio) |
1da177e4 | 770 | { |
564e1c86 | 771 | struct zfcp_adapter *adapter = qdio->adapter; |
c41f8cbd SS |
772 | struct zfcp_fsf_req *req; |
773 | struct fsf_status_read_buffer *sr_buf; | |
c41f8cbd | 774 | int retval = -EIO; |
1da177e4 | 775 | |
44a24cb3 | 776 | spin_lock_irq(&qdio->req_q_lock); |
6b9e1520 | 777 | if (zfcp_qdio_sbal_get(qdio)) |
c41f8cbd SS |
778 | goto out; |
779 | ||
1674b405 | 780 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_UNSOLICITED_STATUS, 0, |
a4623c46 | 781 | adapter->pool.status_read_req); |
025270f0 | 782 | if (IS_ERR(req)) { |
c41f8cbd SS |
783 | retval = PTR_ERR(req); |
784 | goto out; | |
1da177e4 LT |
785 | } |
786 | ||
a4623c46 | 787 | sr_buf = mempool_alloc(adapter->pool.status_read_data, GFP_ATOMIC); |
c41f8cbd SS |
788 | if (!sr_buf) { |
789 | retval = -ENOMEM; | |
790 | goto failed_buf; | |
791 | } | |
792 | memset(sr_buf, 0, sizeof(*sr_buf)); | |
793 | req->data = sr_buf; | |
1674b405 CS |
794 | |
795 | zfcp_qdio_fill_next(qdio, &req->qdio_req, sr_buf, sizeof(*sr_buf)); | |
796 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); | |
059c97d0 | 797 | |
c41f8cbd SS |
798 | retval = zfcp_fsf_req_send(req); |
799 | if (retval) | |
800 | goto failed_req_send; | |
1da177e4 | 801 | |
c41f8cbd SS |
802 | goto out; |
803 | ||
804 | failed_req_send: | |
a4623c46 | 805 | mempool_free(sr_buf, adapter->pool.status_read_data); |
c41f8cbd SS |
806 | failed_buf: |
807 | zfcp_fsf_req_free(req); | |
5771710b | 808 | zfcp_dbf_hba_fsf_unsol("fail", adapter->dbf, NULL); |
c41f8cbd | 809 | out: |
44a24cb3 | 810 | spin_unlock_irq(&qdio->req_q_lock); |
c41f8cbd SS |
811 | return retval; |
812 | } | |
813 | ||
814 | static void zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *req) | |
815 | { | |
b62a8d9b CS |
816 | struct scsi_device *sdev = req->data; |
817 | struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); | |
c41f8cbd SS |
818 | union fsf_status_qual *fsq = &req->qtcb->header.fsf_status_qual; |
819 | ||
820 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) | |
821 | return; | |
822 | ||
823 | switch (req->qtcb->header.fsf_status) { | |
1da177e4 | 824 | case FSF_PORT_HANDLE_NOT_VALID: |
c41f8cbd | 825 | if (fsq->word[0] == fsq->word[1]) { |
b62a8d9b | 826 | zfcp_erp_adapter_reopen(zfcp_sdev->port->adapter, 0, |
5ffd51a5 | 827 | "fsafch1", req); |
c41f8cbd | 828 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 LT |
829 | } |
830 | break; | |
1da177e4 | 831 | case FSF_LUN_HANDLE_NOT_VALID: |
c41f8cbd | 832 | if (fsq->word[0] == fsq->word[1]) { |
b62a8d9b CS |
833 | zfcp_erp_port_reopen(zfcp_sdev->port, 0, "fsafch2", |
834 | req); | |
c41f8cbd | 835 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 LT |
836 | } |
837 | break; | |
1da177e4 | 838 | case FSF_FCP_COMMAND_DOES_NOT_EXIST: |
c41f8cbd | 839 | req->status |= ZFCP_STATUS_FSFREQ_ABORTNOTNEEDED; |
1da177e4 | 840 | break; |
1da177e4 | 841 | case FSF_PORT_BOXED: |
b62a8d9b | 842 | zfcp_erp_port_boxed(zfcp_sdev->port, "fsafch3", req); |
4c571c65 | 843 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 | 844 | break; |
1da177e4 | 845 | case FSF_LUN_BOXED: |
b62a8d9b | 846 | zfcp_erp_lun_boxed(sdev, "fsafch4", req); |
4c571c65 | 847 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 | 848 | break; |
1da177e4 | 849 | case FSF_ADAPTER_STATUS_AVAILABLE: |
c41f8cbd | 850 | switch (fsq->word[0]) { |
1da177e4 | 851 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: |
b62a8d9b | 852 | zfcp_fc_test_link(zfcp_sdev->port); |
dceab655 | 853 | /* fall through */ |
1da177e4 | 854 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
c41f8cbd | 855 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 | 856 | break; |
1da177e4 LT |
857 | } |
858 | break; | |
1da177e4 | 859 | case FSF_GOOD: |
c41f8cbd | 860 | req->status |= ZFCP_STATUS_FSFREQ_ABORTSUCCEEDED; |
1da177e4 | 861 | break; |
1da177e4 | 862 | } |
1da177e4 LT |
863 | } |
864 | ||
865 | /** | |
b62a8d9b CS |
866 | * zfcp_fsf_abort_fcp_cmnd - abort running SCSI command |
867 | * @scmnd: The SCSI command to abort | |
c41f8cbd | 868 | * Returns: pointer to struct zfcp_fsf_req |
1da177e4 | 869 | */ |
1da177e4 | 870 | |
b62a8d9b | 871 | struct zfcp_fsf_req *zfcp_fsf_abort_fcp_cmnd(struct scsi_cmnd *scmnd) |
1da177e4 | 872 | { |
c41f8cbd | 873 | struct zfcp_fsf_req *req = NULL; |
b62a8d9b CS |
874 | struct scsi_device *sdev = scmnd->device; |
875 | struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); | |
876 | struct zfcp_qdio *qdio = zfcp_sdev->port->adapter->qdio; | |
877 | unsigned long old_req_id = (unsigned long) scmnd->host_scribble; | |
8a36e453 | 878 | |
44a24cb3 | 879 | spin_lock_irq(&qdio->req_q_lock); |
6b9e1520 | 880 | if (zfcp_qdio_sbal_get(qdio)) |
c41f8cbd | 881 | goto out; |
564e1c86 | 882 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_ABORT_FCP_CMND, |
1674b405 | 883 | SBAL_FLAGS0_TYPE_READ, |
564e1c86 | 884 | qdio->adapter->pool.scsi_abort); |
633528c3 SS |
885 | if (IS_ERR(req)) { |
886 | req = NULL; | |
c41f8cbd | 887 | goto out; |
633528c3 | 888 | } |
2abbe866 | 889 | |
b62a8d9b | 890 | if (unlikely(!(atomic_read(&zfcp_sdev->status) & |
c41f8cbd SS |
891 | ZFCP_STATUS_COMMON_UNBLOCKED))) |
892 | goto out_error_free; | |
1da177e4 | 893 | |
1674b405 | 894 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
1da177e4 | 895 | |
b62a8d9b | 896 | req->data = zfcp_sdev; |
c41f8cbd | 897 | req->handler = zfcp_fsf_abort_fcp_command_handler; |
b62a8d9b CS |
898 | req->qtcb->header.lun_handle = zfcp_sdev->lun_handle; |
899 | req->qtcb->header.port_handle = zfcp_sdev->port->handle; | |
c41f8cbd SS |
900 | req->qtcb->bottom.support.req_handle = (u64) old_req_id; |
901 | ||
902 | zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT); | |
903 | if (!zfcp_fsf_req_send(req)) | |
904 | goto out; | |
905 | ||
906 | out_error_free: | |
907 | zfcp_fsf_req_free(req); | |
908 | req = NULL; | |
909 | out: | |
44a24cb3 | 910 | spin_unlock_irq(&qdio->req_q_lock); |
c41f8cbd | 911 | return req; |
1da177e4 LT |
912 | } |
913 | ||
c41f8cbd | 914 | static void zfcp_fsf_send_ct_handler(struct zfcp_fsf_req *req) |
1da177e4 | 915 | { |
c41f8cbd | 916 | struct zfcp_adapter *adapter = req->adapter; |
7c7dc196 | 917 | struct zfcp_fsf_ct_els *ct = req->data; |
c41f8cbd | 918 | struct fsf_qtcb_header *header = &req->qtcb->header; |
1da177e4 | 919 | |
7c7dc196 | 920 | ct->status = -EINVAL; |
1da177e4 | 921 | |
c41f8cbd | 922 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
1da177e4 LT |
923 | goto skip_fsfstatus; |
924 | ||
1da177e4 | 925 | switch (header->fsf_status) { |
1da177e4 | 926 | case FSF_GOOD: |
5771710b | 927 | zfcp_dbf_san_ct_response(req); |
7c7dc196 | 928 | ct->status = 0; |
1da177e4 | 929 | break; |
1da177e4 | 930 | case FSF_SERVICE_CLASS_NOT_SUPPORTED: |
c41f8cbd | 931 | zfcp_fsf_class_not_supp(req); |
1da177e4 | 932 | break; |
1da177e4 | 933 | case FSF_ADAPTER_STATUS_AVAILABLE: |
1da177e4 LT |
934 | switch (header->fsf_status_qual.word[0]){ |
935 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: | |
1da177e4 | 936 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
c41f8cbd | 937 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 | 938 | break; |
1da177e4 LT |
939 | } |
940 | break; | |
1da177e4 | 941 | case FSF_ACCESS_DENIED: |
1da177e4 | 942 | break; |
1da177e4 | 943 | case FSF_PORT_BOXED: |
4c571c65 | 944 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 | 945 | break; |
c41f8cbd | 946 | case FSF_PORT_HANDLE_NOT_VALID: |
5ffd51a5 | 947 | zfcp_erp_adapter_reopen(adapter, 0, "fsscth1", req); |
dceab655 | 948 | /* fall through */ |
c41f8cbd | 949 | case FSF_GENERIC_COMMAND_REJECTED: |
1da177e4 | 950 | case FSF_PAYLOAD_SIZE_MISMATCH: |
1da177e4 | 951 | case FSF_REQUEST_SIZE_TOO_LARGE: |
1da177e4 | 952 | case FSF_RESPONSE_SIZE_TOO_LARGE: |
1da177e4 | 953 | case FSF_SBAL_MISMATCH: |
c41f8cbd | 954 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 LT |
955 | break; |
956 | } | |
957 | ||
958 | skip_fsfstatus: | |
7c7dc196 CS |
959 | if (ct->handler) |
960 | ct->handler(ct->handler_data); | |
c41f8cbd | 961 | } |
1da177e4 | 962 | |
1674b405 CS |
963 | static void zfcp_fsf_setup_ct_els_unchained(struct zfcp_qdio *qdio, |
964 | struct zfcp_qdio_req *q_req, | |
426f6059 CS |
965 | struct scatterlist *sg_req, |
966 | struct scatterlist *sg_resp) | |
967 | { | |
1674b405 CS |
968 | zfcp_qdio_fill_next(qdio, q_req, sg_virt(sg_req), sg_req->length); |
969 | zfcp_qdio_fill_next(qdio, q_req, sg_virt(sg_resp), sg_resp->length); | |
970 | zfcp_qdio_set_sbale_last(qdio, q_req); | |
426f6059 CS |
971 | } |
972 | ||
39eb7e9a CS |
973 | static int zfcp_fsf_setup_ct_els_sbals(struct zfcp_fsf_req *req, |
974 | struct scatterlist *sg_req, | |
01b04759 | 975 | struct scatterlist *sg_resp) |
c41f8cbd | 976 | { |
42428f74 | 977 | struct zfcp_adapter *adapter = req->adapter; |
42428f74 | 978 | u32 feat = adapter->adapter_features; |
c41f8cbd SS |
979 | int bytes; |
980 | ||
39eb7e9a | 981 | if (!(feat & FSF_FEATURE_ELS_CT_CHAINED_SBALS)) { |
1674b405 CS |
982 | if (!zfcp_qdio_sg_one_sbale(sg_req) || |
983 | !zfcp_qdio_sg_one_sbale(sg_resp)) | |
39eb7e9a CS |
984 | return -EOPNOTSUPP; |
985 | ||
1674b405 CS |
986 | zfcp_fsf_setup_ct_els_unchained(adapter->qdio, &req->qdio_req, |
987 | sg_req, sg_resp); | |
426f6059 CS |
988 | return 0; |
989 | } | |
990 | ||
991 | /* use single, unchained SBAL if it can hold the request */ | |
30b6777b | 992 | if (zfcp_qdio_sg_one_sbale(sg_req) && zfcp_qdio_sg_one_sbale(sg_resp)) { |
1674b405 CS |
993 | zfcp_fsf_setup_ct_els_unchained(adapter->qdio, &req->qdio_req, |
994 | sg_req, sg_resp); | |
39eb7e9a CS |
995 | return 0; |
996 | } | |
997 | ||
01b04759 | 998 | bytes = zfcp_qdio_sbals_from_sg(adapter->qdio, &req->qdio_req, sg_req); |
c41f8cbd | 999 | if (bytes <= 0) |
9072df4d | 1000 | return -EIO; |
ef3eb71d | 1001 | zfcp_qdio_set_sbale_last(adapter->qdio, &req->qdio_req); |
c41f8cbd | 1002 | req->qtcb->bottom.support.req_buf_length = bytes; |
1674b405 | 1003 | zfcp_qdio_skip_to_last_sbale(&req->qdio_req); |
c41f8cbd | 1004 | |
34c2b712 | 1005 | bytes = zfcp_qdio_sbals_from_sg(adapter->qdio, &req->qdio_req, |
01b04759 | 1006 | sg_resp); |
b1a58985 | 1007 | req->qtcb->bottom.support.resp_buf_length = bytes; |
c41f8cbd | 1008 | if (bytes <= 0) |
9072df4d | 1009 | return -EIO; |
ef3eb71d | 1010 | zfcp_qdio_set_sbale_last(adapter->qdio, &req->qdio_req); |
98fc4d5c | 1011 | |
b1a58985 CS |
1012 | return 0; |
1013 | } | |
1014 | ||
1015 | static int zfcp_fsf_setup_ct_els(struct zfcp_fsf_req *req, | |
1016 | struct scatterlist *sg_req, | |
1017 | struct scatterlist *sg_resp, | |
01b04759 | 1018 | unsigned int timeout) |
b1a58985 CS |
1019 | { |
1020 | int ret; | |
1021 | ||
01b04759 | 1022 | ret = zfcp_fsf_setup_ct_els_sbals(req, sg_req, sg_resp); |
b1a58985 CS |
1023 | if (ret) |
1024 | return ret; | |
1025 | ||
98fc4d5c | 1026 | /* common settings for ct/gs and els requests */ |
51375ee8 SS |
1027 | if (timeout > 255) |
1028 | timeout = 255; /* max value accepted by hardware */ | |
98fc4d5c | 1029 | req->qtcb->bottom.support.service_class = FSF_CLASS_3; |
51375ee8 SS |
1030 | req->qtcb->bottom.support.timeout = timeout; |
1031 | zfcp_fsf_start_timer(req, (timeout + 10) * HZ); | |
c41f8cbd SS |
1032 | |
1033 | return 0; | |
1da177e4 LT |
1034 | } |
1035 | ||
1036 | /** | |
c41f8cbd SS |
1037 | * zfcp_fsf_send_ct - initiate a Generic Service request (FC-GS) |
1038 | * @ct: pointer to struct zfcp_send_ct with data for request | |
1039 | * @pool: if non-null this mempool is used to allocate struct zfcp_fsf_req | |
1da177e4 | 1040 | */ |
7c7dc196 | 1041 | int zfcp_fsf_send_ct(struct zfcp_fc_wka_port *wka_port, |
51375ee8 SS |
1042 | struct zfcp_fsf_ct_els *ct, mempool_t *pool, |
1043 | unsigned int timeout) | |
1da177e4 | 1044 | { |
564e1c86 | 1045 | struct zfcp_qdio *qdio = wka_port->adapter->qdio; |
c41f8cbd SS |
1046 | struct zfcp_fsf_req *req; |
1047 | int ret = -EIO; | |
1da177e4 | 1048 | |
44a24cb3 | 1049 | spin_lock_irq(&qdio->req_q_lock); |
6b9e1520 | 1050 | if (zfcp_qdio_sbal_get(qdio)) |
c41f8cbd | 1051 | goto out; |
1da177e4 | 1052 | |
1674b405 CS |
1053 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_SEND_GENERIC, |
1054 | SBAL_FLAGS0_TYPE_WRITE_READ, pool); | |
09a46c6e | 1055 | |
025270f0 | 1056 | if (IS_ERR(req)) { |
c41f8cbd SS |
1057 | ret = PTR_ERR(req); |
1058 | goto out; | |
3f0ca62a CS |
1059 | } |
1060 | ||
09a46c6e | 1061 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
01b04759 | 1062 | ret = zfcp_fsf_setup_ct_els(req, ct->req, ct->resp, timeout); |
553448f6 | 1063 | if (ret) |
1da177e4 | 1064 | goto failed_send; |
1da177e4 | 1065 | |
c41f8cbd | 1066 | req->handler = zfcp_fsf_send_ct_handler; |
5ab944f9 | 1067 | req->qtcb->header.port_handle = wka_port->handle; |
c41f8cbd SS |
1068 | req->data = ct; |
1069 | ||
7c7dc196 | 1070 | zfcp_dbf_san_ct_request(req, wka_port->d_id); |
1da177e4 | 1071 | |
c41f8cbd SS |
1072 | ret = zfcp_fsf_req_send(req); |
1073 | if (ret) | |
1074 | goto failed_send; | |
1da177e4 | 1075 | |
c41f8cbd | 1076 | goto out; |
1da177e4 | 1077 | |
c41f8cbd SS |
1078 | failed_send: |
1079 | zfcp_fsf_req_free(req); | |
c41f8cbd | 1080 | out: |
44a24cb3 | 1081 | spin_unlock_irq(&qdio->req_q_lock); |
c41f8cbd | 1082 | return ret; |
1da177e4 LT |
1083 | } |
1084 | ||
c41f8cbd | 1085 | static void zfcp_fsf_send_els_handler(struct zfcp_fsf_req *req) |
1da177e4 | 1086 | { |
7c7dc196 | 1087 | struct zfcp_fsf_ct_els *send_els = req->data; |
c41f8cbd SS |
1088 | struct zfcp_port *port = send_els->port; |
1089 | struct fsf_qtcb_header *header = &req->qtcb->header; | |
1da177e4 | 1090 | |
c41f8cbd | 1091 | send_els->status = -EINVAL; |
1da177e4 | 1092 | |
c41f8cbd | 1093 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
1da177e4 LT |
1094 | goto skip_fsfstatus; |
1095 | ||
1096 | switch (header->fsf_status) { | |
1da177e4 | 1097 | case FSF_GOOD: |
5771710b | 1098 | zfcp_dbf_san_els_response(req); |
c41f8cbd | 1099 | send_els->status = 0; |
1da177e4 | 1100 | break; |
1da177e4 | 1101 | case FSF_SERVICE_CLASS_NOT_SUPPORTED: |
c41f8cbd | 1102 | zfcp_fsf_class_not_supp(req); |
1da177e4 | 1103 | break; |
1da177e4 | 1104 | case FSF_ADAPTER_STATUS_AVAILABLE: |
1da177e4 LT |
1105 | switch (header->fsf_status_qual.word[0]){ |
1106 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: | |
1da177e4 | 1107 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
1da177e4 | 1108 | case FSF_SQ_RETRY_IF_POSSIBLE: |
c41f8cbd | 1109 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 | 1110 | break; |
1da177e4 LT |
1111 | } |
1112 | break; | |
1da177e4 | 1113 | case FSF_ELS_COMMAND_REJECTED: |
1da177e4 | 1114 | case FSF_PAYLOAD_SIZE_MISMATCH: |
1da177e4 | 1115 | case FSF_REQUEST_SIZE_TOO_LARGE: |
1da177e4 | 1116 | case FSF_RESPONSE_SIZE_TOO_LARGE: |
1da177e4 | 1117 | break; |
1da177e4 | 1118 | case FSF_ACCESS_DENIED: |
dc577d55 CS |
1119 | if (port) |
1120 | zfcp_fsf_access_denied_port(req, port); | |
1da177e4 | 1121 | break; |
c41f8cbd SS |
1122 | case FSF_SBAL_MISMATCH: |
1123 | /* should never occure, avoided in zfcp_fsf_send_els */ | |
1124 | /* fall through */ | |
1da177e4 | 1125 | default: |
c41f8cbd | 1126 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 LT |
1127 | break; |
1128 | } | |
1da177e4 | 1129 | skip_fsfstatus: |
aa551daf | 1130 | if (send_els->handler) |
1da177e4 | 1131 | send_els->handler(send_els->handler_data); |
c41f8cbd | 1132 | } |
1da177e4 | 1133 | |
c41f8cbd SS |
1134 | /** |
1135 | * zfcp_fsf_send_els - initiate an ELS command (FC-FS) | |
1136 | * @els: pointer to struct zfcp_send_els with data for the command | |
1137 | */ | |
7c7dc196 | 1138 | int zfcp_fsf_send_els(struct zfcp_adapter *adapter, u32 d_id, |
51375ee8 | 1139 | struct zfcp_fsf_ct_els *els, unsigned int timeout) |
c41f8cbd SS |
1140 | { |
1141 | struct zfcp_fsf_req *req; | |
7c7dc196 | 1142 | struct zfcp_qdio *qdio = adapter->qdio; |
c41f8cbd SS |
1143 | int ret = -EIO; |
1144 | ||
44a24cb3 | 1145 | spin_lock_irq(&qdio->req_q_lock); |
6b9e1520 | 1146 | if (zfcp_qdio_sbal_get(qdio)) |
c41f8cbd | 1147 | goto out; |
09a46c6e | 1148 | |
1674b405 CS |
1149 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_SEND_ELS, |
1150 | SBAL_FLAGS0_TYPE_WRITE_READ, NULL); | |
09a46c6e | 1151 | |
025270f0 | 1152 | if (IS_ERR(req)) { |
c41f8cbd SS |
1153 | ret = PTR_ERR(req); |
1154 | goto out; | |
1155 | } | |
1156 | ||
09a46c6e | 1157 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
01b04759 SS |
1158 | |
1159 | zfcp_qdio_sbal_limit(qdio, &req->qdio_req, 2); | |
1160 | ||
1161 | ret = zfcp_fsf_setup_ct_els(req, els->req, els->resp, timeout); | |
44cc76f2 | 1162 | |
c41f8cbd SS |
1163 | if (ret) |
1164 | goto failed_send; | |
1165 | ||
7c7dc196 | 1166 | hton24(req->qtcb->bottom.support.d_id, d_id); |
c41f8cbd | 1167 | req->handler = zfcp_fsf_send_els_handler; |
c41f8cbd SS |
1168 | req->data = els; |
1169 | ||
5771710b | 1170 | zfcp_dbf_san_els_request(req); |
c41f8cbd | 1171 | |
c41f8cbd SS |
1172 | ret = zfcp_fsf_req_send(req); |
1173 | if (ret) | |
1174 | goto failed_send; | |
1175 | ||
1176 | goto out; | |
1177 | ||
1178 | failed_send: | |
1179 | zfcp_fsf_req_free(req); | |
1180 | out: | |
44a24cb3 | 1181 | spin_unlock_irq(&qdio->req_q_lock); |
c41f8cbd | 1182 | return ret; |
1da177e4 LT |
1183 | } |
1184 | ||
c41f8cbd | 1185 | int zfcp_fsf_exchange_config_data(struct zfcp_erp_action *erp_action) |
1da177e4 | 1186 | { |
c41f8cbd | 1187 | struct zfcp_fsf_req *req; |
564e1c86 | 1188 | struct zfcp_qdio *qdio = erp_action->adapter->qdio; |
c41f8cbd SS |
1189 | int retval = -EIO; |
1190 | ||
44a24cb3 | 1191 | spin_lock_irq(&qdio->req_q_lock); |
6b9e1520 | 1192 | if (zfcp_qdio_sbal_get(qdio)) |
c41f8cbd | 1193 | goto out; |
09a46c6e | 1194 | |
564e1c86 | 1195 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_CONFIG_DATA, |
1674b405 | 1196 | SBAL_FLAGS0_TYPE_READ, |
564e1c86 | 1197 | qdio->adapter->pool.erp_req); |
09a46c6e | 1198 | |
025270f0 | 1199 | if (IS_ERR(req)) { |
c41f8cbd SS |
1200 | retval = PTR_ERR(req); |
1201 | goto out; | |
1da177e4 LT |
1202 | } |
1203 | ||
09a46c6e | 1204 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
1674b405 | 1205 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
1da177e4 | 1206 | |
c41f8cbd | 1207 | req->qtcb->bottom.config.feature_selection = |
aef4a983 MS |
1208 | FSF_FEATURE_CFDC | |
1209 | FSF_FEATURE_LUN_SHARING | | |
9eb69aff | 1210 | FSF_FEATURE_NOTIFICATION_LOST | |
aef4a983 | 1211 | FSF_FEATURE_UPDATE_ALERT; |
c41f8cbd SS |
1212 | req->erp_action = erp_action; |
1213 | req->handler = zfcp_fsf_exchange_config_data_handler; | |
e60a6d69 | 1214 | erp_action->fsf_req_id = req->req_id; |
1da177e4 | 1215 | |
287ac01a | 1216 | zfcp_fsf_start_erp_timer(req); |
c41f8cbd | 1217 | retval = zfcp_fsf_req_send(req); |
1da177e4 | 1218 | if (retval) { |
c41f8cbd | 1219 | zfcp_fsf_req_free(req); |
e60a6d69 | 1220 | erp_action->fsf_req_id = 0; |
1da177e4 | 1221 | } |
c41f8cbd | 1222 | out: |
44a24cb3 | 1223 | spin_unlock_irq(&qdio->req_q_lock); |
52ef11a7 SS |
1224 | return retval; |
1225 | } | |
1da177e4 | 1226 | |
564e1c86 | 1227 | int zfcp_fsf_exchange_config_data_sync(struct zfcp_qdio *qdio, |
c41f8cbd | 1228 | struct fsf_qtcb_bottom_config *data) |
52ef11a7 | 1229 | { |
c41f8cbd SS |
1230 | struct zfcp_fsf_req *req = NULL; |
1231 | int retval = -EIO; | |
1232 | ||
44a24cb3 | 1233 | spin_lock_irq(&qdio->req_q_lock); |
6b9e1520 | 1234 | if (zfcp_qdio_sbal_get(qdio)) |
ada81b74 | 1235 | goto out_unlock; |
c41f8cbd | 1236 | |
1674b405 CS |
1237 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_CONFIG_DATA, |
1238 | SBAL_FLAGS0_TYPE_READ, NULL); | |
09a46c6e | 1239 | |
025270f0 | 1240 | if (IS_ERR(req)) { |
c41f8cbd | 1241 | retval = PTR_ERR(req); |
ada81b74 | 1242 | goto out_unlock; |
52ef11a7 SS |
1243 | } |
1244 | ||
1674b405 | 1245 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
c41f8cbd | 1246 | req->handler = zfcp_fsf_exchange_config_data_handler; |
52ef11a7 | 1247 | |
c41f8cbd | 1248 | req->qtcb->bottom.config.feature_selection = |
52ef11a7 SS |
1249 | FSF_FEATURE_CFDC | |
1250 | FSF_FEATURE_LUN_SHARING | | |
1251 | FSF_FEATURE_NOTIFICATION_LOST | | |
1252 | FSF_FEATURE_UPDATE_ALERT; | |
1253 | ||
1254 | if (data) | |
c41f8cbd | 1255 | req->data = data; |
52ef11a7 | 1256 | |
c41f8cbd SS |
1257 | zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); |
1258 | retval = zfcp_fsf_req_send(req); | |
44a24cb3 | 1259 | spin_unlock_irq(&qdio->req_q_lock); |
553448f6 | 1260 | if (!retval) |
058b8647 | 1261 | wait_for_completion(&req->completion); |
52ef11a7 | 1262 | |
c41f8cbd | 1263 | zfcp_fsf_req_free(req); |
ada81b74 | 1264 | return retval; |
52ef11a7 | 1265 | |
ada81b74 | 1266 | out_unlock: |
44a24cb3 | 1267 | spin_unlock_irq(&qdio->req_q_lock); |
1da177e4 LT |
1268 | return retval; |
1269 | } | |
1270 | ||
1da177e4 LT |
1271 | /** |
1272 | * zfcp_fsf_exchange_port_data - request information about local port | |
aef4a983 | 1273 | * @erp_action: ERP action for the adapter for which port data is requested |
c41f8cbd | 1274 | * Returns: 0 on success, error otherwise |
1da177e4 | 1275 | */ |
c41f8cbd | 1276 | int zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action) |
1da177e4 | 1277 | { |
564e1c86 | 1278 | struct zfcp_qdio *qdio = erp_action->adapter->qdio; |
c41f8cbd | 1279 | struct zfcp_fsf_req *req; |
c41f8cbd | 1280 | int retval = -EIO; |
1da177e4 | 1281 | |
564e1c86 | 1282 | if (!(qdio->adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT)) |
52ef11a7 | 1283 | return -EOPNOTSUPP; |
1da177e4 | 1284 | |
44a24cb3 | 1285 | spin_lock_irq(&qdio->req_q_lock); |
6b9e1520 | 1286 | if (zfcp_qdio_sbal_get(qdio)) |
c41f8cbd | 1287 | goto out; |
09a46c6e | 1288 | |
564e1c86 | 1289 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_PORT_DATA, |
1674b405 | 1290 | SBAL_FLAGS0_TYPE_READ, |
564e1c86 | 1291 | qdio->adapter->pool.erp_req); |
09a46c6e | 1292 | |
025270f0 | 1293 | if (IS_ERR(req)) { |
c41f8cbd SS |
1294 | retval = PTR_ERR(req); |
1295 | goto out; | |
aef4a983 MS |
1296 | } |
1297 | ||
09a46c6e | 1298 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
1674b405 | 1299 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
1da177e4 | 1300 | |
c41f8cbd SS |
1301 | req->handler = zfcp_fsf_exchange_port_data_handler; |
1302 | req->erp_action = erp_action; | |
e60a6d69 | 1303 | erp_action->fsf_req_id = req->req_id; |
52ef11a7 | 1304 | |
287ac01a | 1305 | zfcp_fsf_start_erp_timer(req); |
c41f8cbd | 1306 | retval = zfcp_fsf_req_send(req); |
1da177e4 | 1307 | if (retval) { |
c41f8cbd | 1308 | zfcp_fsf_req_free(req); |
e60a6d69 | 1309 | erp_action->fsf_req_id = 0; |
52ef11a7 | 1310 | } |
c41f8cbd | 1311 | out: |
44a24cb3 | 1312 | spin_unlock_irq(&qdio->req_q_lock); |
52ef11a7 SS |
1313 | return retval; |
1314 | } | |
1315 | ||
52ef11a7 SS |
1316 | /** |
1317 | * zfcp_fsf_exchange_port_data_sync - request information about local port | |
564e1c86 | 1318 | * @qdio: pointer to struct zfcp_qdio |
c41f8cbd SS |
1319 | * @data: pointer to struct fsf_qtcb_bottom_port |
1320 | * Returns: 0 on success, error otherwise | |
52ef11a7 | 1321 | */ |
564e1c86 | 1322 | int zfcp_fsf_exchange_port_data_sync(struct zfcp_qdio *qdio, |
c41f8cbd | 1323 | struct fsf_qtcb_bottom_port *data) |
52ef11a7 | 1324 | { |
c41f8cbd SS |
1325 | struct zfcp_fsf_req *req = NULL; |
1326 | int retval = -EIO; | |
52ef11a7 | 1327 | |
564e1c86 | 1328 | if (!(qdio->adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT)) |
52ef11a7 | 1329 | return -EOPNOTSUPP; |
52ef11a7 | 1330 | |
44a24cb3 | 1331 | spin_lock_irq(&qdio->req_q_lock); |
6b9e1520 | 1332 | if (zfcp_qdio_sbal_get(qdio)) |
ada81b74 | 1333 | goto out_unlock; |
c41f8cbd | 1334 | |
1674b405 CS |
1335 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_PORT_DATA, |
1336 | SBAL_FLAGS0_TYPE_READ, NULL); | |
09a46c6e | 1337 | |
025270f0 | 1338 | if (IS_ERR(req)) { |
c41f8cbd | 1339 | retval = PTR_ERR(req); |
ada81b74 | 1340 | goto out_unlock; |
1da177e4 LT |
1341 | } |
1342 | ||
52ef11a7 | 1343 | if (data) |
c41f8cbd | 1344 | req->data = data; |
52ef11a7 | 1345 | |
1674b405 | 1346 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
52ef11a7 | 1347 | |
c41f8cbd SS |
1348 | req->handler = zfcp_fsf_exchange_port_data_handler; |
1349 | zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); | |
1350 | retval = zfcp_fsf_req_send(req); | |
44a24cb3 | 1351 | spin_unlock_irq(&qdio->req_q_lock); |
ada81b74 | 1352 | |
553448f6 | 1353 | if (!retval) |
058b8647 SS |
1354 | wait_for_completion(&req->completion); |
1355 | ||
c41f8cbd | 1356 | zfcp_fsf_req_free(req); |
1da177e4 | 1357 | |
1da177e4 | 1358 | return retval; |
ada81b74 CS |
1359 | |
1360 | out_unlock: | |
44a24cb3 | 1361 | spin_unlock_irq(&qdio->req_q_lock); |
ada81b74 | 1362 | return retval; |
1da177e4 LT |
1363 | } |
1364 | ||
c41f8cbd | 1365 | static void zfcp_fsf_open_port_handler(struct zfcp_fsf_req *req) |
1da177e4 | 1366 | { |
c41f8cbd SS |
1367 | struct zfcp_port *port = req->data; |
1368 | struct fsf_qtcb_header *header = &req->qtcb->header; | |
9d05ce2c | 1369 | struct fc_els_flogi *plogi; |
1da177e4 | 1370 | |
c41f8cbd | 1371 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
a17c5855 | 1372 | goto out; |
1da177e4 | 1373 | |
1da177e4 | 1374 | switch (header->fsf_status) { |
1da177e4 | 1375 | case FSF_PORT_ALREADY_OPEN: |
1da177e4 | 1376 | break; |
1da177e4 | 1377 | case FSF_ACCESS_DENIED: |
c41f8cbd | 1378 | zfcp_fsf_access_denied_port(req, port); |
1da177e4 | 1379 | break; |
1da177e4 | 1380 | case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED: |
c41f8cbd | 1381 | dev_warn(&req->adapter->ccw_device->dev, |
ff3b24fa | 1382 | "Not enough FCP adapter resources to open " |
7ba58c9c SS |
1383 | "remote port 0x%016Lx\n", |
1384 | (unsigned long long)port->wwpn); | |
5ffd51a5 | 1385 | zfcp_erp_port_failed(port, "fsoph_1", req); |
c41f8cbd | 1386 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 | 1387 | break; |
1da177e4 | 1388 | case FSF_ADAPTER_STATUS_AVAILABLE: |
1da177e4 LT |
1389 | switch (header->fsf_status_qual.word[0]) { |
1390 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: | |
1da177e4 | 1391 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
1da177e4 | 1392 | case FSF_SQ_NO_RETRY_POSSIBLE: |
c41f8cbd | 1393 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 LT |
1394 | break; |
1395 | } | |
1396 | break; | |
1da177e4 | 1397 | case FSF_GOOD: |
1da177e4 | 1398 | port->handle = header->port_handle; |
1da177e4 LT |
1399 | atomic_set_mask(ZFCP_STATUS_COMMON_OPEN | |
1400 | ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); | |
d736a27b AH |
1401 | atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED | |
1402 | ZFCP_STATUS_COMMON_ACCESS_BOXED, | |
1403 | &port->status); | |
1da177e4 LT |
1404 | /* check whether D_ID has changed during open */ |
1405 | /* | |
1406 | * FIXME: This check is not airtight, as the FCP channel does | |
1407 | * not monitor closures of target port connections caused on | |
1408 | * the remote side. Thus, they might miss out on invalidating | |
1409 | * locally cached WWPNs (and other N_Port parameters) of gone | |
1410 | * target ports. So, our heroic attempt to make things safe | |
1411 | * could be undermined by 'open port' response data tagged with | |
1412 | * obsolete WWPNs. Another reason to monitor potential | |
1413 | * connection closures ourself at least (by interpreting | |
1414 | * incoming ELS' and unsolicited status). It just crosses my | |
1415 | * mind that one should be able to cross-check by means of | |
1416 | * another GID_PN straight after a port has been opened. | |
1417 | * Alternately, an ADISC/PDISC ELS should suffice, as well. | |
1418 | */ | |
9d05ce2c | 1419 | plogi = (struct fc_els_flogi *) req->qtcb->bottom.support.els; |
39eb7e9a | 1420 | if (req->qtcb->bottom.support.els1_length >= |
9d05ce2c | 1421 | FSF_PLOGI_MIN_LEN) |
c41f8cbd | 1422 | zfcp_fc_plogi_evaluate(port, plogi); |
1da177e4 | 1423 | break; |
1da177e4 | 1424 | case FSF_UNKNOWN_OP_SUBTYPE: |
c41f8cbd | 1425 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 LT |
1426 | break; |
1427 | } | |
a17c5855 MP |
1428 | |
1429 | out: | |
615f59e0 | 1430 | put_device(&port->dev); |
1da177e4 LT |
1431 | } |
1432 | ||
c41f8cbd SS |
1433 | /** |
1434 | * zfcp_fsf_open_port - create and send open port request | |
1435 | * @erp_action: pointer to struct zfcp_erp_action | |
1436 | * Returns: 0 on success, error otherwise | |
1da177e4 | 1437 | */ |
c41f8cbd | 1438 | int zfcp_fsf_open_port(struct zfcp_erp_action *erp_action) |
1da177e4 | 1439 | { |
564e1c86 | 1440 | struct zfcp_qdio *qdio = erp_action->adapter->qdio; |
a17c5855 | 1441 | struct zfcp_port *port = erp_action->port; |
564e1c86 | 1442 | struct zfcp_fsf_req *req; |
c41f8cbd SS |
1443 | int retval = -EIO; |
1444 | ||
44a24cb3 | 1445 | spin_lock_irq(&qdio->req_q_lock); |
6b9e1520 | 1446 | if (zfcp_qdio_sbal_get(qdio)) |
c41f8cbd SS |
1447 | goto out; |
1448 | ||
564e1c86 | 1449 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_PORT_WITH_DID, |
1674b405 | 1450 | SBAL_FLAGS0_TYPE_READ, |
564e1c86 | 1451 | qdio->adapter->pool.erp_req); |
09a46c6e | 1452 | |
025270f0 | 1453 | if (IS_ERR(req)) { |
c41f8cbd | 1454 | retval = PTR_ERR(req); |
1da177e4 | 1455 | goto out; |
c41f8cbd | 1456 | } |
1da177e4 | 1457 | |
09a46c6e | 1458 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
1674b405 | 1459 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
1da177e4 | 1460 | |
c41f8cbd | 1461 | req->handler = zfcp_fsf_open_port_handler; |
800c0cad | 1462 | hton24(req->qtcb->bottom.support.d_id, port->d_id); |
a17c5855 | 1463 | req->data = port; |
c41f8cbd | 1464 | req->erp_action = erp_action; |
e60a6d69 | 1465 | erp_action->fsf_req_id = req->req_id; |
615f59e0 | 1466 | get_device(&port->dev); |
c41f8cbd | 1467 | |
287ac01a | 1468 | zfcp_fsf_start_erp_timer(req); |
c41f8cbd | 1469 | retval = zfcp_fsf_req_send(req); |
1da177e4 | 1470 | if (retval) { |
c41f8cbd | 1471 | zfcp_fsf_req_free(req); |
e60a6d69 | 1472 | erp_action->fsf_req_id = 0; |
615f59e0 | 1473 | put_device(&port->dev); |
1da177e4 | 1474 | } |
c41f8cbd | 1475 | out: |
44a24cb3 | 1476 | spin_unlock_irq(&qdio->req_q_lock); |
1da177e4 LT |
1477 | return retval; |
1478 | } | |
1479 | ||
c41f8cbd | 1480 | static void zfcp_fsf_close_port_handler(struct zfcp_fsf_req *req) |
1da177e4 | 1481 | { |
c41f8cbd | 1482 | struct zfcp_port *port = req->data; |
1da177e4 | 1483 | |
c41f8cbd | 1484 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
44cc76f2 | 1485 | return; |
1da177e4 | 1486 | |
c41f8cbd | 1487 | switch (req->qtcb->header.fsf_status) { |
1da177e4 | 1488 | case FSF_PORT_HANDLE_NOT_VALID: |
5ffd51a5 | 1489 | zfcp_erp_adapter_reopen(port->adapter, 0, "fscph_1", req); |
c41f8cbd | 1490 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 | 1491 | break; |
1da177e4 | 1492 | case FSF_ADAPTER_STATUS_AVAILABLE: |
1da177e4 | 1493 | break; |
1da177e4 | 1494 | case FSF_GOOD: |
5ffd51a5 | 1495 | zfcp_erp_modify_port_status(port, "fscph_2", req, |
1da177e4 LT |
1496 | ZFCP_STATUS_COMMON_OPEN, |
1497 | ZFCP_CLEAR); | |
1da177e4 | 1498 | break; |
1da177e4 | 1499 | } |
1da177e4 LT |
1500 | } |
1501 | ||
c41f8cbd SS |
1502 | /** |
1503 | * zfcp_fsf_close_port - create and send close port request | |
1504 | * @erp_action: pointer to struct zfcp_erp_action | |
1505 | * Returns: 0 on success, error otherwise | |
1da177e4 | 1506 | */ |
c41f8cbd | 1507 | int zfcp_fsf_close_port(struct zfcp_erp_action *erp_action) |
1da177e4 | 1508 | { |
564e1c86 | 1509 | struct zfcp_qdio *qdio = erp_action->adapter->qdio; |
c41f8cbd SS |
1510 | struct zfcp_fsf_req *req; |
1511 | int retval = -EIO; | |
1512 | ||
44a24cb3 | 1513 | spin_lock_irq(&qdio->req_q_lock); |
6b9e1520 | 1514 | if (zfcp_qdio_sbal_get(qdio)) |
c41f8cbd SS |
1515 | goto out; |
1516 | ||
564e1c86 | 1517 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PORT, |
1674b405 | 1518 | SBAL_FLAGS0_TYPE_READ, |
564e1c86 | 1519 | qdio->adapter->pool.erp_req); |
09a46c6e | 1520 | |
025270f0 | 1521 | if (IS_ERR(req)) { |
c41f8cbd | 1522 | retval = PTR_ERR(req); |
1da177e4 | 1523 | goto out; |
c41f8cbd | 1524 | } |
1da177e4 | 1525 | |
09a46c6e | 1526 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
1674b405 | 1527 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
1da177e4 | 1528 | |
c41f8cbd SS |
1529 | req->handler = zfcp_fsf_close_port_handler; |
1530 | req->data = erp_action->port; | |
1531 | req->erp_action = erp_action; | |
1532 | req->qtcb->header.port_handle = erp_action->port->handle; | |
e60a6d69 | 1533 | erp_action->fsf_req_id = req->req_id; |
c41f8cbd | 1534 | |
287ac01a | 1535 | zfcp_fsf_start_erp_timer(req); |
c41f8cbd | 1536 | retval = zfcp_fsf_req_send(req); |
1da177e4 | 1537 | if (retval) { |
c41f8cbd | 1538 | zfcp_fsf_req_free(req); |
e60a6d69 | 1539 | erp_action->fsf_req_id = 0; |
1da177e4 | 1540 | } |
c41f8cbd | 1541 | out: |
44a24cb3 | 1542 | spin_unlock_irq(&qdio->req_q_lock); |
1da177e4 LT |
1543 | return retval; |
1544 | } | |
1545 | ||
5ab944f9 SS |
1546 | static void zfcp_fsf_open_wka_port_handler(struct zfcp_fsf_req *req) |
1547 | { | |
bd0072ec | 1548 | struct zfcp_fc_wka_port *wka_port = req->data; |
5ab944f9 SS |
1549 | struct fsf_qtcb_header *header = &req->qtcb->header; |
1550 | ||
1551 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) { | |
bd0072ec | 1552 | wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; |
5ab944f9 SS |
1553 | goto out; |
1554 | } | |
1555 | ||
1556 | switch (header->fsf_status) { | |
1557 | case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED: | |
1558 | dev_warn(&req->adapter->ccw_device->dev, | |
1559 | "Opening WKA port 0x%x failed\n", wka_port->d_id); | |
dceab655 | 1560 | /* fall through */ |
5ab944f9 SS |
1561 | case FSF_ADAPTER_STATUS_AVAILABLE: |
1562 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; | |
dceab655 | 1563 | /* fall through */ |
5ab944f9 | 1564 | case FSF_ACCESS_DENIED: |
bd0072ec | 1565 | wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; |
5ab944f9 | 1566 | break; |
5ab944f9 SS |
1567 | case FSF_GOOD: |
1568 | wka_port->handle = header->port_handle; | |
27f492cc SS |
1569 | /* fall through */ |
1570 | case FSF_PORT_ALREADY_OPEN: | |
bd0072ec | 1571 | wka_port->status = ZFCP_FC_WKA_PORT_ONLINE; |
5ab944f9 SS |
1572 | } |
1573 | out: | |
1574 | wake_up(&wka_port->completion_wq); | |
1575 | } | |
1576 | ||
1577 | /** | |
1578 | * zfcp_fsf_open_wka_port - create and send open wka-port request | |
bd0072ec | 1579 | * @wka_port: pointer to struct zfcp_fc_wka_port |
5ab944f9 SS |
1580 | * Returns: 0 on success, error otherwise |
1581 | */ | |
bd0072ec | 1582 | int zfcp_fsf_open_wka_port(struct zfcp_fc_wka_port *wka_port) |
5ab944f9 | 1583 | { |
564e1c86 | 1584 | struct zfcp_qdio *qdio = wka_port->adapter->qdio; |
5ab944f9 SS |
1585 | struct zfcp_fsf_req *req; |
1586 | int retval = -EIO; | |
1587 | ||
44a24cb3 | 1588 | spin_lock_irq(&qdio->req_q_lock); |
6b9e1520 | 1589 | if (zfcp_qdio_sbal_get(qdio)) |
5ab944f9 SS |
1590 | goto out; |
1591 | ||
564e1c86 | 1592 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_PORT_WITH_DID, |
1674b405 | 1593 | SBAL_FLAGS0_TYPE_READ, |
564e1c86 | 1594 | qdio->adapter->pool.erp_req); |
09a46c6e | 1595 | |
5ab944f9 SS |
1596 | if (unlikely(IS_ERR(req))) { |
1597 | retval = PTR_ERR(req); | |
1598 | goto out; | |
1599 | } | |
1600 | ||
09a46c6e | 1601 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
1674b405 | 1602 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
5ab944f9 SS |
1603 | |
1604 | req->handler = zfcp_fsf_open_wka_port_handler; | |
800c0cad | 1605 | hton24(req->qtcb->bottom.support.d_id, wka_port->d_id); |
5ab944f9 SS |
1606 | req->data = wka_port; |
1607 | ||
1608 | zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); | |
1609 | retval = zfcp_fsf_req_send(req); | |
1610 | if (retval) | |
1611 | zfcp_fsf_req_free(req); | |
1612 | out: | |
44a24cb3 | 1613 | spin_unlock_irq(&qdio->req_q_lock); |
5ab944f9 SS |
1614 | return retval; |
1615 | } | |
1616 | ||
1617 | static void zfcp_fsf_close_wka_port_handler(struct zfcp_fsf_req *req) | |
1618 | { | |
bd0072ec | 1619 | struct zfcp_fc_wka_port *wka_port = req->data; |
5ab944f9 SS |
1620 | |
1621 | if (req->qtcb->header.fsf_status == FSF_PORT_HANDLE_NOT_VALID) { | |
1622 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; | |
5ffd51a5 | 1623 | zfcp_erp_adapter_reopen(wka_port->adapter, 0, "fscwph1", req); |
5ab944f9 SS |
1624 | } |
1625 | ||
bd0072ec | 1626 | wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; |
5ab944f9 SS |
1627 | wake_up(&wka_port->completion_wq); |
1628 | } | |
1629 | ||
1630 | /** | |
1631 | * zfcp_fsf_close_wka_port - create and send close wka port request | |
bd0072ec | 1632 | * @wka_port: WKA port to open |
5ab944f9 SS |
1633 | * Returns: 0 on success, error otherwise |
1634 | */ | |
bd0072ec | 1635 | int zfcp_fsf_close_wka_port(struct zfcp_fc_wka_port *wka_port) |
5ab944f9 | 1636 | { |
564e1c86 | 1637 | struct zfcp_qdio *qdio = wka_port->adapter->qdio; |
5ab944f9 SS |
1638 | struct zfcp_fsf_req *req; |
1639 | int retval = -EIO; | |
1640 | ||
44a24cb3 | 1641 | spin_lock_irq(&qdio->req_q_lock); |
6b9e1520 | 1642 | if (zfcp_qdio_sbal_get(qdio)) |
5ab944f9 SS |
1643 | goto out; |
1644 | ||
564e1c86 | 1645 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PORT, |
1674b405 | 1646 | SBAL_FLAGS0_TYPE_READ, |
564e1c86 | 1647 | qdio->adapter->pool.erp_req); |
09a46c6e | 1648 | |
5ab944f9 SS |
1649 | if (unlikely(IS_ERR(req))) { |
1650 | retval = PTR_ERR(req); | |
1651 | goto out; | |
1652 | } | |
1653 | ||
09a46c6e | 1654 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
1674b405 | 1655 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
5ab944f9 SS |
1656 | |
1657 | req->handler = zfcp_fsf_close_wka_port_handler; | |
1658 | req->data = wka_port; | |
1659 | req->qtcb->header.port_handle = wka_port->handle; | |
1660 | ||
1661 | zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); | |
1662 | retval = zfcp_fsf_req_send(req); | |
1663 | if (retval) | |
1664 | zfcp_fsf_req_free(req); | |
1665 | out: | |
44a24cb3 | 1666 | spin_unlock_irq(&qdio->req_q_lock); |
5ab944f9 SS |
1667 | return retval; |
1668 | } | |
1669 | ||
c41f8cbd | 1670 | static void zfcp_fsf_close_physical_port_handler(struct zfcp_fsf_req *req) |
1da177e4 | 1671 | { |
c41f8cbd SS |
1672 | struct zfcp_port *port = req->data; |
1673 | struct fsf_qtcb_header *header = &req->qtcb->header; | |
b62a8d9b | 1674 | struct scsi_device *sdev; |
1da177e4 | 1675 | |
c41f8cbd | 1676 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
a5b11dda | 1677 | return; |
1da177e4 | 1678 | |
1da177e4 | 1679 | switch (header->fsf_status) { |
1da177e4 | 1680 | case FSF_PORT_HANDLE_NOT_VALID: |
5ffd51a5 | 1681 | zfcp_erp_adapter_reopen(port->adapter, 0, "fscpph1", req); |
c41f8cbd | 1682 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 | 1683 | break; |
1da177e4 | 1684 | case FSF_ACCESS_DENIED: |
c41f8cbd | 1685 | zfcp_fsf_access_denied_port(req, port); |
1da177e4 | 1686 | break; |
1da177e4 | 1687 | case FSF_PORT_BOXED: |
5c815d15 CS |
1688 | /* can't use generic zfcp_erp_modify_port_status because |
1689 | * ZFCP_STATUS_COMMON_OPEN must not be reset for the port */ | |
1690 | atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); | |
b62a8d9b CS |
1691 | shost_for_each_device(sdev, port->adapter->scsi_host) |
1692 | if (sdev_to_zfcp(sdev)->port == port) | |
1693 | atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, | |
1694 | &sdev_to_zfcp(sdev)->status); | |
dfb3cf00 | 1695 | zfcp_erp_port_boxed(port, "fscpph2", req); |
4c571c65 | 1696 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 | 1697 | break; |
1da177e4 | 1698 | case FSF_ADAPTER_STATUS_AVAILABLE: |
1da177e4 LT |
1699 | switch (header->fsf_status_qual.word[0]) { |
1700 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: | |
c41f8cbd | 1701 | /* fall through */ |
1da177e4 | 1702 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
c41f8cbd | 1703 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 | 1704 | break; |
1da177e4 LT |
1705 | } |
1706 | break; | |
1da177e4 | 1707 | case FSF_GOOD: |
1da177e4 LT |
1708 | /* can't use generic zfcp_erp_modify_port_status because |
1709 | * ZFCP_STATUS_COMMON_OPEN must not be reset for the port | |
1710 | */ | |
1711 | atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); | |
b62a8d9b CS |
1712 | shost_for_each_device(sdev, port->adapter->scsi_host) |
1713 | if (sdev_to_zfcp(sdev)->port == port) | |
1714 | atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, | |
1715 | &sdev_to_zfcp(sdev)->status); | |
1da177e4 | 1716 | break; |
1da177e4 | 1717 | } |
1da177e4 LT |
1718 | } |
1719 | ||
c41f8cbd SS |
1720 | /** |
1721 | * zfcp_fsf_close_physical_port - close physical port | |
1722 | * @erp_action: pointer to struct zfcp_erp_action | |
1723 | * Returns: 0 on success | |
1da177e4 | 1724 | */ |
c41f8cbd | 1725 | int zfcp_fsf_close_physical_port(struct zfcp_erp_action *erp_action) |
1da177e4 | 1726 | { |
564e1c86 | 1727 | struct zfcp_qdio *qdio = erp_action->adapter->qdio; |
c41f8cbd SS |
1728 | struct zfcp_fsf_req *req; |
1729 | int retval = -EIO; | |
1730 | ||
44a24cb3 | 1731 | spin_lock_irq(&qdio->req_q_lock); |
6b9e1520 | 1732 | if (zfcp_qdio_sbal_get(qdio)) |
1da177e4 | 1733 | goto out; |
1da177e4 | 1734 | |
564e1c86 | 1735 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PHYSICAL_PORT, |
1674b405 | 1736 | SBAL_FLAGS0_TYPE_READ, |
564e1c86 | 1737 | qdio->adapter->pool.erp_req); |
09a46c6e | 1738 | |
025270f0 | 1739 | if (IS_ERR(req)) { |
c41f8cbd SS |
1740 | retval = PTR_ERR(req); |
1741 | goto out; | |
1742 | } | |
1da177e4 | 1743 | |
09a46c6e | 1744 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
1674b405 | 1745 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
1da177e4 | 1746 | |
c41f8cbd SS |
1747 | req->data = erp_action->port; |
1748 | req->qtcb->header.port_handle = erp_action->port->handle; | |
1749 | req->erp_action = erp_action; | |
1750 | req->handler = zfcp_fsf_close_physical_port_handler; | |
e60a6d69 | 1751 | erp_action->fsf_req_id = req->req_id; |
c41f8cbd | 1752 | |
287ac01a | 1753 | zfcp_fsf_start_erp_timer(req); |
c41f8cbd | 1754 | retval = zfcp_fsf_req_send(req); |
1da177e4 | 1755 | if (retval) { |
c41f8cbd | 1756 | zfcp_fsf_req_free(req); |
e60a6d69 | 1757 | erp_action->fsf_req_id = 0; |
1da177e4 | 1758 | } |
c41f8cbd | 1759 | out: |
44a24cb3 | 1760 | spin_unlock_irq(&qdio->req_q_lock); |
1da177e4 LT |
1761 | return retval; |
1762 | } | |
1763 | ||
b62a8d9b | 1764 | static void zfcp_fsf_open_lun_handler(struct zfcp_fsf_req *req) |
1da177e4 | 1765 | { |
c41f8cbd | 1766 | struct zfcp_adapter *adapter = req->adapter; |
b62a8d9b CS |
1767 | struct scsi_device *sdev = req->data; |
1768 | struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); | |
c41f8cbd SS |
1769 | struct fsf_qtcb_header *header = &req->qtcb->header; |
1770 | struct fsf_qtcb_bottom_support *bottom = &req->qtcb->bottom.support; | |
1771 | struct fsf_queue_designator *queue_designator = | |
1772 | &header->fsf_status_qual.fsf_queue_designator; | |
aef4a983 | 1773 | int exclusive, readwrite; |
1da177e4 | 1774 | |
c41f8cbd | 1775 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
44cc76f2 | 1776 | return; |
1da177e4 | 1777 | |
1da177e4 | 1778 | atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED | |
b64ddf96 | 1779 | ZFCP_STATUS_COMMON_ACCESS_BOXED | |
b62a8d9b CS |
1780 | ZFCP_STATUS_LUN_SHARED | |
1781 | ZFCP_STATUS_LUN_READONLY, | |
1782 | &zfcp_sdev->status); | |
1da177e4 | 1783 | |
1da177e4 LT |
1784 | switch (header->fsf_status) { |
1785 | ||
1786 | case FSF_PORT_HANDLE_NOT_VALID: | |
b62a8d9b | 1787 | zfcp_erp_adapter_reopen(adapter, 0, "fsouh_1", req); |
c41f8cbd | 1788 | /* fall through */ |
1da177e4 | 1789 | case FSF_LUN_ALREADY_OPEN: |
1da177e4 | 1790 | break; |
1da177e4 | 1791 | case FSF_ACCESS_DENIED: |
b62a8d9b CS |
1792 | zfcp_fsf_access_denied_lun(req, sdev); |
1793 | atomic_clear_mask(ZFCP_STATUS_LUN_SHARED, &zfcp_sdev->status); | |
1794 | atomic_clear_mask(ZFCP_STATUS_LUN_READONLY, &zfcp_sdev->status); | |
1da177e4 | 1795 | break; |
1da177e4 | 1796 | case FSF_PORT_BOXED: |
b62a8d9b | 1797 | zfcp_erp_port_boxed(zfcp_sdev->port, "fsouh_2", req); |
4c571c65 | 1798 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 | 1799 | break; |
1da177e4 | 1800 | case FSF_LUN_SHARING_VIOLATION: |
c41f8cbd | 1801 | if (header->fsf_status_qual.word[0]) |
553448f6 | 1802 | dev_warn(&adapter->ccw_device->dev, |
ff3b24fa CS |
1803 | "LUN 0x%Lx on port 0x%Lx is already in " |
1804 | "use by CSS%d, MIF Image ID %x\n", | |
b62a8d9b CS |
1805 | (unsigned long long)zfcp_scsi_dev_lun(sdev), |
1806 | (unsigned long long)zfcp_sdev->port->wwpn, | |
ff3b24fa CS |
1807 | queue_designator->cssid, |
1808 | queue_designator->hla); | |
c41f8cbd | 1809 | else |
553448f6 CS |
1810 | zfcp_act_eval_err(adapter, |
1811 | header->fsf_status_qual.word[2]); | |
b62a8d9b CS |
1812 | zfcp_erp_lun_access_denied(sdev, "fsolh_3", req); |
1813 | atomic_clear_mask(ZFCP_STATUS_LUN_SHARED, &zfcp_sdev->status); | |
1814 | atomic_clear_mask(ZFCP_STATUS_LUN_READONLY, &zfcp_sdev->status); | |
c41f8cbd | 1815 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 | 1816 | break; |
1da177e4 | 1817 | case FSF_MAXIMUM_NUMBER_OF_LUNS_EXCEEDED: |
c41f8cbd | 1818 | dev_warn(&adapter->ccw_device->dev, |
ff3b24fa CS |
1819 | "No handle is available for LUN " |
1820 | "0x%016Lx on port 0x%016Lx\n", | |
b62a8d9b CS |
1821 | (unsigned long long)zfcp_scsi_dev_lun(sdev), |
1822 | (unsigned long long)zfcp_sdev->port->wwpn); | |
1823 | zfcp_erp_lun_failed(sdev, "fsolh_4", req); | |
c41f8cbd SS |
1824 | /* fall through */ |
1825 | case FSF_INVALID_COMMAND_OPTION: | |
1826 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; | |
1da177e4 | 1827 | break; |
1da177e4 | 1828 | case FSF_ADAPTER_STATUS_AVAILABLE: |
1da177e4 LT |
1829 | switch (header->fsf_status_qual.word[0]) { |
1830 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: | |
b62a8d9b | 1831 | zfcp_fc_test_link(zfcp_sdev->port); |
c41f8cbd | 1832 | /* fall through */ |
1da177e4 | 1833 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
c41f8cbd | 1834 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 | 1835 | break; |
1da177e4 LT |
1836 | } |
1837 | break; | |
1838 | ||
1da177e4 | 1839 | case FSF_GOOD: |
b62a8d9b CS |
1840 | zfcp_sdev->lun_handle = header->lun_handle; |
1841 | atomic_set_mask(ZFCP_STATUS_COMMON_OPEN, &zfcp_sdev->status); | |
aef4a983 MS |
1842 | |
1843 | if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE) && | |
1844 | (adapter->adapter_features & FSF_FEATURE_LUN_SHARING) && | |
6fcf41d1 | 1845 | !zfcp_ccw_priv_sch(adapter)) { |
aef4a983 MS |
1846 | exclusive = (bottom->lun_access_info & |
1847 | FSF_UNIT_ACCESS_EXCLUSIVE); | |
1848 | readwrite = (bottom->lun_access_info & | |
1849 | FSF_UNIT_ACCESS_OUTBOUND_TRANSFER); | |
1850 | ||
1da177e4 | 1851 | if (!exclusive) |
b62a8d9b CS |
1852 | atomic_set_mask(ZFCP_STATUS_LUN_SHARED, |
1853 | &zfcp_sdev->status); | |
1da177e4 LT |
1854 | |
1855 | if (!readwrite) { | |
b62a8d9b CS |
1856 | atomic_set_mask(ZFCP_STATUS_LUN_READONLY, |
1857 | &zfcp_sdev->status); | |
c41f8cbd | 1858 | dev_info(&adapter->ccw_device->dev, |
ff3b24fa CS |
1859 | "SCSI device at LUN 0x%016Lx on port " |
1860 | "0x%016Lx opened read-only\n", | |
b62a8d9b CS |
1861 | (unsigned long long)zfcp_scsi_dev_lun(sdev), |
1862 | (unsigned long long)zfcp_sdev->port->wwpn); | |
1da177e4 LT |
1863 | } |
1864 | ||
1865 | if (exclusive && !readwrite) { | |
c41f8cbd | 1866 | dev_err(&adapter->ccw_device->dev, |
ff3b24fa | 1867 | "Exclusive read-only access not " |
b62a8d9b | 1868 | "supported (LUN 0x%016Lx, " |
ff3b24fa | 1869 | "port 0x%016Lx)\n", |
b62a8d9b CS |
1870 | (unsigned long long)zfcp_scsi_dev_lun(sdev), |
1871 | (unsigned long long)zfcp_sdev->port->wwpn); | |
1872 | zfcp_erp_lun_failed(sdev, "fsolh_5", req); | |
c41f8cbd | 1873 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
b62a8d9b | 1874 | zfcp_erp_lun_shutdown(sdev, 0, "fsolh_6", req); |
1da177e4 | 1875 | } else if (!exclusive && readwrite) { |
c41f8cbd | 1876 | dev_err(&adapter->ccw_device->dev, |
ff3b24fa | 1877 | "Shared read-write access not " |
b62a8d9b | 1878 | "supported (LUN 0x%016Lx, port " |
27c3f0a6 | 1879 | "0x%016Lx)\n", |
b62a8d9b CS |
1880 | (unsigned long long)zfcp_scsi_dev_lun(sdev), |
1881 | (unsigned long long)zfcp_sdev->port->wwpn); | |
1882 | zfcp_erp_lun_failed(sdev, "fsolh_7", req); | |
c41f8cbd | 1883 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
b62a8d9b | 1884 | zfcp_erp_lun_shutdown(sdev, 0, "fsolh_8", req); |
1da177e4 LT |
1885 | } |
1886 | } | |
1da177e4 | 1887 | break; |
1da177e4 | 1888 | } |
1da177e4 LT |
1889 | } |
1890 | ||
c41f8cbd | 1891 | /** |
b62a8d9b | 1892 | * zfcp_fsf_open_lun - open LUN |
c41f8cbd SS |
1893 | * @erp_action: pointer to struct zfcp_erp_action |
1894 | * Returns: 0 on success, error otherwise | |
1da177e4 | 1895 | */ |
b62a8d9b | 1896 | int zfcp_fsf_open_lun(struct zfcp_erp_action *erp_action) |
1da177e4 | 1897 | { |
c41f8cbd | 1898 | struct zfcp_adapter *adapter = erp_action->adapter; |
564e1c86 | 1899 | struct zfcp_qdio *qdio = adapter->qdio; |
c41f8cbd SS |
1900 | struct zfcp_fsf_req *req; |
1901 | int retval = -EIO; | |
1902 | ||
44a24cb3 | 1903 | spin_lock_irq(&qdio->req_q_lock); |
6b9e1520 | 1904 | if (zfcp_qdio_sbal_get(qdio)) |
1da177e4 | 1905 | goto out; |
1da177e4 | 1906 | |
564e1c86 | 1907 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_LUN, |
1674b405 | 1908 | SBAL_FLAGS0_TYPE_READ, |
a4623c46 | 1909 | adapter->pool.erp_req); |
09a46c6e | 1910 | |
025270f0 | 1911 | if (IS_ERR(req)) { |
c41f8cbd SS |
1912 | retval = PTR_ERR(req); |
1913 | goto out; | |
1914 | } | |
1915 | ||
09a46c6e | 1916 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
1674b405 | 1917 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
1da177e4 | 1918 | |
c41f8cbd | 1919 | req->qtcb->header.port_handle = erp_action->port->handle; |
b62a8d9b CS |
1920 | req->qtcb->bottom.support.fcp_lun = zfcp_scsi_dev_lun(erp_action->sdev); |
1921 | req->handler = zfcp_fsf_open_lun_handler; | |
1922 | req->data = erp_action->sdev; | |
c41f8cbd | 1923 | req->erp_action = erp_action; |
e60a6d69 | 1924 | erp_action->fsf_req_id = req->req_id; |
c41f8cbd SS |
1925 | |
1926 | if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE)) | |
1927 | req->qtcb->bottom.support.option = FSF_OPEN_LUN_SUPPRESS_BOXING; | |
1928 | ||
287ac01a | 1929 | zfcp_fsf_start_erp_timer(req); |
c41f8cbd | 1930 | retval = zfcp_fsf_req_send(req); |
1da177e4 | 1931 | if (retval) { |
c41f8cbd | 1932 | zfcp_fsf_req_free(req); |
e60a6d69 | 1933 | erp_action->fsf_req_id = 0; |
1da177e4 | 1934 | } |
c41f8cbd | 1935 | out: |
44a24cb3 | 1936 | spin_unlock_irq(&qdio->req_q_lock); |
1da177e4 LT |
1937 | return retval; |
1938 | } | |
1939 | ||
b62a8d9b | 1940 | static void zfcp_fsf_close_lun_handler(struct zfcp_fsf_req *req) |
1da177e4 | 1941 | { |
b62a8d9b CS |
1942 | struct scsi_device *sdev = req->data; |
1943 | struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); | |
1da177e4 | 1944 | |
c41f8cbd | 1945 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
44cc76f2 | 1946 | return; |
1da177e4 | 1947 | |
c41f8cbd | 1948 | switch (req->qtcb->header.fsf_status) { |
1da177e4 | 1949 | case FSF_PORT_HANDLE_NOT_VALID: |
b62a8d9b CS |
1950 | zfcp_erp_adapter_reopen(zfcp_sdev->port->adapter, 0, "fscuh_1", |
1951 | req); | |
c41f8cbd | 1952 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 | 1953 | break; |
1da177e4 | 1954 | case FSF_LUN_HANDLE_NOT_VALID: |
b62a8d9b | 1955 | zfcp_erp_port_reopen(zfcp_sdev->port, 0, "fscuh_2", req); |
c41f8cbd | 1956 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 | 1957 | break; |
1da177e4 | 1958 | case FSF_PORT_BOXED: |
b62a8d9b | 1959 | zfcp_erp_port_boxed(zfcp_sdev->port, "fscuh_3", req); |
4c571c65 | 1960 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 | 1961 | break; |
1da177e4 | 1962 | case FSF_ADAPTER_STATUS_AVAILABLE: |
c41f8cbd | 1963 | switch (req->qtcb->header.fsf_status_qual.word[0]) { |
1da177e4 | 1964 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: |
b62a8d9b | 1965 | zfcp_fc_test_link(zfcp_sdev->port); |
c41f8cbd | 1966 | /* fall through */ |
1da177e4 | 1967 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
c41f8cbd | 1968 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 LT |
1969 | break; |
1970 | } | |
1971 | break; | |
1da177e4 | 1972 | case FSF_GOOD: |
b62a8d9b | 1973 | atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, &zfcp_sdev->status); |
1da177e4 | 1974 | break; |
1da177e4 | 1975 | } |
1da177e4 LT |
1976 | } |
1977 | ||
1978 | /** | |
b62a8d9b CS |
1979 | * zfcp_fsf_close_LUN - close LUN |
1980 | * @erp_action: pointer to erp_action triggering the "close LUN" | |
c41f8cbd | 1981 | * Returns: 0 on success, error otherwise |
1da177e4 | 1982 | */ |
b62a8d9b | 1983 | int zfcp_fsf_close_lun(struct zfcp_erp_action *erp_action) |
1da177e4 | 1984 | { |
564e1c86 | 1985 | struct zfcp_qdio *qdio = erp_action->adapter->qdio; |
b62a8d9b | 1986 | struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(erp_action->sdev); |
c41f8cbd SS |
1987 | struct zfcp_fsf_req *req; |
1988 | int retval = -EIO; | |
1da177e4 | 1989 | |
44a24cb3 | 1990 | spin_lock_irq(&qdio->req_q_lock); |
6b9e1520 | 1991 | if (zfcp_qdio_sbal_get(qdio)) |
1da177e4 | 1992 | goto out; |
09a46c6e | 1993 | |
564e1c86 | 1994 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_LUN, |
1674b405 | 1995 | SBAL_FLAGS0_TYPE_READ, |
564e1c86 | 1996 | qdio->adapter->pool.erp_req); |
09a46c6e | 1997 | |
025270f0 | 1998 | if (IS_ERR(req)) { |
c41f8cbd SS |
1999 | retval = PTR_ERR(req); |
2000 | goto out; | |
2001 | } | |
1da177e4 | 2002 | |
09a46c6e | 2003 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
1674b405 | 2004 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
1da177e4 | 2005 | |
c41f8cbd | 2006 | req->qtcb->header.port_handle = erp_action->port->handle; |
b62a8d9b CS |
2007 | req->qtcb->header.lun_handle = zfcp_sdev->lun_handle; |
2008 | req->handler = zfcp_fsf_close_lun_handler; | |
2009 | req->data = erp_action->sdev; | |
c41f8cbd | 2010 | req->erp_action = erp_action; |
e60a6d69 | 2011 | erp_action->fsf_req_id = req->req_id; |
fdf23452 | 2012 | |
287ac01a | 2013 | zfcp_fsf_start_erp_timer(req); |
c41f8cbd SS |
2014 | retval = zfcp_fsf_req_send(req); |
2015 | if (retval) { | |
2016 | zfcp_fsf_req_free(req); | |
e60a6d69 | 2017 | erp_action->fsf_req_id = 0; |
c41f8cbd SS |
2018 | } |
2019 | out: | |
44a24cb3 | 2020 | spin_unlock_irq(&qdio->req_q_lock); |
c41f8cbd | 2021 | return retval; |
1da177e4 LT |
2022 | } |
2023 | ||
c9615858 CS |
2024 | static void zfcp_fsf_update_lat(struct fsf_latency_record *lat_rec, u32 lat) |
2025 | { | |
2026 | lat_rec->sum += lat; | |
c41f8cbd SS |
2027 | lat_rec->min = min(lat_rec->min, lat); |
2028 | lat_rec->max = max(lat_rec->max, lat); | |
c9615858 CS |
2029 | } |
2030 | ||
d9742b42 | 2031 | static void zfcp_fsf_req_trace(struct zfcp_fsf_req *req, struct scsi_cmnd *scsi) |
c9615858 | 2032 | { |
d9742b42 CS |
2033 | struct fsf_qual_latency_info *lat_in; |
2034 | struct latency_cont *lat = NULL; | |
b62a8d9b | 2035 | struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(scsi->device); |
d9742b42 CS |
2036 | struct zfcp_blk_drv_data blktrc; |
2037 | int ticks = req->adapter->timer_ticks; | |
c9615858 | 2038 | |
d9742b42 | 2039 | lat_in = &req->qtcb->prefix.prot_status_qual.latency_info; |
c9615858 | 2040 | |
d9742b42 CS |
2041 | blktrc.flags = 0; |
2042 | blktrc.magic = ZFCP_BLK_DRV_DATA_MAGIC; | |
2043 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) | |
2044 | blktrc.flags |= ZFCP_BLK_REQ_ERROR; | |
706eca49 | 2045 | blktrc.inb_usage = 0; |
34c2b712 | 2046 | blktrc.outb_usage = req->qdio_req.qdio_outb_usage; |
d9742b42 | 2047 | |
5bbf297c CS |
2048 | if (req->adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA && |
2049 | !(req->status & ZFCP_STATUS_FSFREQ_ERROR)) { | |
d9742b42 CS |
2050 | blktrc.flags |= ZFCP_BLK_LAT_VALID; |
2051 | blktrc.channel_lat = lat_in->channel_lat * ticks; | |
2052 | blktrc.fabric_lat = lat_in->fabric_lat * ticks; | |
2053 | ||
2054 | switch (req->qtcb->bottom.io.data_direction) { | |
ef3eb71d FB |
2055 | case FSF_DATADIR_DIF_READ_STRIP: |
2056 | case FSF_DATADIR_DIF_READ_CONVERT: | |
d9742b42 | 2057 | case FSF_DATADIR_READ: |
b62a8d9b | 2058 | lat = &zfcp_sdev->latencies.read; |
d9742b42 | 2059 | break; |
ef3eb71d FB |
2060 | case FSF_DATADIR_DIF_WRITE_INSERT: |
2061 | case FSF_DATADIR_DIF_WRITE_CONVERT: | |
d9742b42 | 2062 | case FSF_DATADIR_WRITE: |
b62a8d9b | 2063 | lat = &zfcp_sdev->latencies.write; |
d9742b42 CS |
2064 | break; |
2065 | case FSF_DATADIR_CMND: | |
b62a8d9b | 2066 | lat = &zfcp_sdev->latencies.cmd; |
d9742b42 CS |
2067 | break; |
2068 | } | |
1da177e4 | 2069 | |
d9742b42 | 2070 | if (lat) { |
b62a8d9b | 2071 | spin_lock(&zfcp_sdev->latencies.lock); |
d9742b42 CS |
2072 | zfcp_fsf_update_lat(&lat->channel, lat_in->channel_lat); |
2073 | zfcp_fsf_update_lat(&lat->fabric, lat_in->fabric_lat); | |
2074 | lat->counter++; | |
b62a8d9b | 2075 | spin_unlock(&zfcp_sdev->latencies.lock); |
d9742b42 | 2076 | } |
0997f1c5 | 2077 | } |
0997f1c5 | 2078 | |
d9742b42 CS |
2079 | blk_add_driver_data(scsi->request->q, scsi->request, &blktrc, |
2080 | sizeof(blktrc)); | |
0997f1c5 | 2081 | } |
0997f1c5 | 2082 | |
c41f8cbd | 2083 | static void zfcp_fsf_send_fcp_command_task_handler(struct zfcp_fsf_req *req) |
1da177e4 | 2084 | { |
0ac55aa9 | 2085 | struct scsi_cmnd *scpnt; |
4318e08c | 2086 | struct fcp_resp_with_ext *fcp_rsp; |
1da177e4 | 2087 | unsigned long flags; |
1da177e4 | 2088 | |
c41f8cbd SS |
2089 | read_lock_irqsave(&req->adapter->abort_lock, flags); |
2090 | ||
0ac55aa9 SS |
2091 | scpnt = req->data; |
2092 | if (unlikely(!scpnt)) { | |
2093 | read_unlock_irqrestore(&req->adapter->abort_lock, flags); | |
2094 | return; | |
2095 | } | |
2096 | ||
c41f8cbd | 2097 | if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) { |
4c571c65 | 2098 | set_host_byte(scpnt, DID_TRANSPORT_DISRUPTED); |
1da177e4 LT |
2099 | goto skip_fsfstatus; |
2100 | } | |
2101 | ||
ef3eb71d FB |
2102 | switch (req->qtcb->header.fsf_status) { |
2103 | case FSF_INCONSISTENT_PROT_DATA: | |
2104 | case FSF_INVALID_PROT_PARM: | |
2105 | set_host_byte(scpnt, DID_ERROR); | |
2106 | goto skip_fsfstatus; | |
2107 | case FSF_BLOCK_GUARD_CHECK_FAILURE: | |
2108 | zfcp_scsi_dif_sense_error(scpnt, 0x1); | |
2109 | goto skip_fsfstatus; | |
2110 | case FSF_APP_TAG_CHECK_FAILURE: | |
2111 | zfcp_scsi_dif_sense_error(scpnt, 0x2); | |
2112 | goto skip_fsfstatus; | |
2113 | case FSF_REF_TAG_CHECK_FAILURE: | |
2114 | zfcp_scsi_dif_sense_error(scpnt, 0x3); | |
2115 | goto skip_fsfstatus; | |
2116 | } | |
4318e08c CS |
2117 | fcp_rsp = (struct fcp_resp_with_ext *) &req->qtcb->bottom.io.fcp_rsp; |
2118 | zfcp_fc_eval_fcp_rsp(fcp_rsp, scpnt); | |
1da177e4 | 2119 | |
c41f8cbd | 2120 | skip_fsfstatus: |
5bbf297c | 2121 | zfcp_fsf_req_trace(req, scpnt); |
ab72528a | 2122 | zfcp_dbf_scsi_result(req->adapter->dbf, scpnt, req); |
1da177e4 | 2123 | |
1da177e4 | 2124 | scpnt->host_scribble = NULL; |
1da177e4 | 2125 | (scpnt->scsi_done) (scpnt); |
1da177e4 LT |
2126 | /* |
2127 | * We must hold this lock until scsi_done has been called. | |
2128 | * Otherwise we may call scsi_done after abort regarding this | |
2129 | * command has completed. | |
2130 | * Note: scsi_done must not block! | |
2131 | */ | |
c41f8cbd | 2132 | read_unlock_irqrestore(&req->adapter->abort_lock, flags); |
1da177e4 LT |
2133 | } |
2134 | ||
c41f8cbd | 2135 | static void zfcp_fsf_send_fcp_ctm_handler(struct zfcp_fsf_req *req) |
1da177e4 | 2136 | { |
4318e08c CS |
2137 | struct fcp_resp_with_ext *fcp_rsp; |
2138 | struct fcp_resp_rsp_info *rsp_info; | |
1da177e4 | 2139 | |
4318e08c CS |
2140 | fcp_rsp = (struct fcp_resp_with_ext *) &req->qtcb->bottom.io.fcp_rsp; |
2141 | rsp_info = (struct fcp_resp_rsp_info *) &fcp_rsp[1]; | |
2142 | ||
2143 | if ((rsp_info->rsp_code != FCP_TMF_CMPL) || | |
c41f8cbd SS |
2144 | (req->status & ZFCP_STATUS_FSFREQ_ERROR)) |
2145 | req->status |= ZFCP_STATUS_FSFREQ_TMFUNCFAILED; | |
2146 | } | |
2147 | ||
2148 | ||
2149 | static void zfcp_fsf_send_fcp_command_handler(struct zfcp_fsf_req *req) | |
2150 | { | |
b62a8d9b CS |
2151 | struct scsi_cmnd *scmnd = req->data; |
2152 | struct scsi_device *sdev = scmnd->device; | |
2153 | struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); | |
c41f8cbd SS |
2154 | struct fsf_qtcb_header *header = &req->qtcb->header; |
2155 | ||
c41f8cbd | 2156 | if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) |
1da177e4 | 2157 | goto skip_fsfstatus; |
1da177e4 | 2158 | |
c41f8cbd SS |
2159 | switch (header->fsf_status) { |
2160 | case FSF_HANDLE_MISMATCH: | |
2161 | case FSF_PORT_HANDLE_NOT_VALID: | |
b62a8d9b CS |
2162 | zfcp_erp_adapter_reopen(zfcp_sdev->port->adapter, 0, "fssfch1", |
2163 | req); | |
c41f8cbd SS |
2164 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
2165 | break; | |
2166 | case FSF_FCPLUN_NOT_VALID: | |
2167 | case FSF_LUN_HANDLE_NOT_VALID: | |
b62a8d9b | 2168 | zfcp_erp_port_reopen(zfcp_sdev->port, 0, "fssfch2", req); |
c41f8cbd | 2169 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 | 2170 | break; |
c41f8cbd SS |
2171 | case FSF_SERVICE_CLASS_NOT_SUPPORTED: |
2172 | zfcp_fsf_class_not_supp(req); | |
1da177e4 | 2173 | break; |
c41f8cbd | 2174 | case FSF_ACCESS_DENIED: |
b62a8d9b | 2175 | zfcp_fsf_access_denied_lun(req, sdev); |
c41f8cbd SS |
2176 | break; |
2177 | case FSF_DIRECTION_INDICATOR_NOT_VALID: | |
2178 | dev_err(&req->adapter->ccw_device->dev, | |
b62a8d9b | 2179 | "Incorrect direction %d, LUN 0x%016Lx on port " |
ff3b24fa | 2180 | "0x%016Lx closed\n", |
c41f8cbd | 2181 | req->qtcb->bottom.io.data_direction, |
b62a8d9b CS |
2182 | (unsigned long long)zfcp_scsi_dev_lun(sdev), |
2183 | (unsigned long long)zfcp_sdev->port->wwpn); | |
2184 | zfcp_erp_adapter_shutdown(zfcp_sdev->port->adapter, 0, | |
2185 | "fssfch3", req); | |
c41f8cbd SS |
2186 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
2187 | break; | |
2188 | case FSF_CMND_LENGTH_NOT_VALID: | |
2189 | dev_err(&req->adapter->ccw_device->dev, | |
b62a8d9b | 2190 | "Incorrect CDB length %d, LUN 0x%016Lx on " |
ff3b24fa | 2191 | "port 0x%016Lx closed\n", |
c41f8cbd | 2192 | req->qtcb->bottom.io.fcp_cmnd_length, |
b62a8d9b CS |
2193 | (unsigned long long)zfcp_scsi_dev_lun(sdev), |
2194 | (unsigned long long)zfcp_sdev->port->wwpn); | |
2195 | zfcp_erp_adapter_shutdown(zfcp_sdev->port->adapter, 0, | |
2196 | "fssfch4", req); | |
c41f8cbd SS |
2197 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
2198 | break; | |
2199 | case FSF_PORT_BOXED: | |
b62a8d9b | 2200 | zfcp_erp_port_boxed(zfcp_sdev->port, "fssfch5", req); |
4c571c65 | 2201 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
c41f8cbd SS |
2202 | break; |
2203 | case FSF_LUN_BOXED: | |
b62a8d9b | 2204 | zfcp_erp_lun_boxed(sdev, "fssfch6", req); |
4c571c65 | 2205 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
c41f8cbd SS |
2206 | break; |
2207 | case FSF_ADAPTER_STATUS_AVAILABLE: | |
2208 | if (header->fsf_status_qual.word[0] == | |
2209 | FSF_SQ_INVOKE_LINK_TEST_PROCEDURE) | |
b62a8d9b | 2210 | zfcp_fc_test_link(zfcp_sdev->port); |
c41f8cbd | 2211 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 | 2212 | break; |
1da177e4 | 2213 | } |
c41f8cbd SS |
2214 | skip_fsfstatus: |
2215 | if (req->status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT) | |
2216 | zfcp_fsf_send_fcp_ctm_handler(req); | |
2217 | else { | |
2218 | zfcp_fsf_send_fcp_command_task_handler(req); | |
c41f8cbd | 2219 | } |
1da177e4 LT |
2220 | } |
2221 | ||
ef3eb71d FB |
2222 | static int zfcp_fsf_set_data_dir(struct scsi_cmnd *scsi_cmnd, u32 *data_dir) |
2223 | { | |
2224 | switch (scsi_get_prot_op(scsi_cmnd)) { | |
2225 | case SCSI_PROT_NORMAL: | |
2226 | switch (scsi_cmnd->sc_data_direction) { | |
2227 | case DMA_NONE: | |
2228 | *data_dir = FSF_DATADIR_CMND; | |
2229 | break; | |
2230 | case DMA_FROM_DEVICE: | |
2231 | *data_dir = FSF_DATADIR_READ; | |
2232 | break; | |
2233 | case DMA_TO_DEVICE: | |
2234 | *data_dir = FSF_DATADIR_WRITE; | |
2235 | break; | |
2236 | case DMA_BIDIRECTIONAL: | |
2237 | return -EINVAL; | |
2238 | } | |
2239 | break; | |
2240 | ||
2241 | case SCSI_PROT_READ_STRIP: | |
2242 | *data_dir = FSF_DATADIR_DIF_READ_STRIP; | |
2243 | break; | |
2244 | case SCSI_PROT_WRITE_INSERT: | |
2245 | *data_dir = FSF_DATADIR_DIF_WRITE_INSERT; | |
2246 | break; | |
2247 | case SCSI_PROT_READ_PASS: | |
2248 | *data_dir = FSF_DATADIR_DIF_READ_CONVERT; | |
2249 | break; | |
2250 | case SCSI_PROT_WRITE_PASS: | |
2251 | *data_dir = FSF_DATADIR_DIF_WRITE_CONVERT; | |
2252 | break; | |
2253 | default: | |
2254 | return -EINVAL; | |
2255 | } | |
2256 | ||
2257 | return 0; | |
2258 | } | |
2259 | ||
c41f8cbd | 2260 | /** |
b62a8d9b | 2261 | * zfcp_fsf_fcp_cmnd - initiate an FCP command (for a SCSI command) |
c41f8cbd | 2262 | * @scsi_cmnd: scsi command to be sent |
1da177e4 | 2263 | */ |
b62a8d9b | 2264 | int zfcp_fsf_fcp_cmnd(struct scsi_cmnd *scsi_cmnd) |
1da177e4 | 2265 | { |
c41f8cbd | 2266 | struct zfcp_fsf_req *req; |
4318e08c | 2267 | struct fcp_cmnd *fcp_cmnd; |
bc90c863 | 2268 | unsigned int sbtype = SBAL_FLAGS0_TYPE_READ; |
ef3eb71d | 2269 | int real_bytes, retval = -EIO, dix_bytes = 0; |
b62a8d9b CS |
2270 | struct scsi_device *sdev = scsi_cmnd->device; |
2271 | struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); | |
2272 | struct zfcp_adapter *adapter = zfcp_sdev->port->adapter; | |
564e1c86 | 2273 | struct zfcp_qdio *qdio = adapter->qdio; |
ef3eb71d | 2274 | struct fsf_qtcb_bottom_io *io; |
1da177e4 | 2275 | |
b62a8d9b | 2276 | if (unlikely(!(atomic_read(&zfcp_sdev->status) & |
c41f8cbd SS |
2277 | ZFCP_STATUS_COMMON_UNBLOCKED))) |
2278 | return -EBUSY; | |
1da177e4 | 2279 | |
564e1c86 | 2280 | spin_lock(&qdio->req_q_lock); |
706eca49 | 2281 | if (atomic_read(&qdio->req_q_free) <= 0) { |
564e1c86 | 2282 | atomic_inc(&qdio->req_q_full); |
c41f8cbd | 2283 | goto out; |
8fdf30d5 | 2284 | } |
09a46c6e | 2285 | |
1674b405 CS |
2286 | if (scsi_cmnd->sc_data_direction == DMA_TO_DEVICE) |
2287 | sbtype = SBAL_FLAGS0_TYPE_WRITE; | |
2288 | ||
564e1c86 | 2289 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_FCP_CMND, |
1674b405 | 2290 | sbtype, adapter->pool.scsi_req); |
09a46c6e | 2291 | |
025270f0 | 2292 | if (IS_ERR(req)) { |
c41f8cbd SS |
2293 | retval = PTR_ERR(req); |
2294 | goto out; | |
2295 | } | |
2296 | ||
ef3eb71d FB |
2297 | scsi_cmnd->host_scribble = (unsigned char *) req->req_id; |
2298 | ||
2299 | io = &req->qtcb->bottom.io; | |
09a46c6e | 2300 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
c41f8cbd SS |
2301 | req->data = scsi_cmnd; |
2302 | req->handler = zfcp_fsf_send_fcp_command_handler; | |
b62a8d9b CS |
2303 | req->qtcb->header.lun_handle = zfcp_sdev->lun_handle; |
2304 | req->qtcb->header.port_handle = zfcp_sdev->port->handle; | |
ef3eb71d FB |
2305 | io->service_class = FSF_CLASS_3; |
2306 | io->fcp_cmnd_length = FCP_CMND_LEN; | |
c41f8cbd | 2307 | |
ef3eb71d FB |
2308 | if (scsi_get_prot_op(scsi_cmnd) != SCSI_PROT_NORMAL) { |
2309 | io->data_block_length = scsi_cmnd->device->sector_size; | |
2310 | io->ref_tag_value = scsi_get_lba(scsi_cmnd) & 0xFFFFFFFF; | |
1da177e4 LT |
2311 | } |
2312 | ||
ef3eb71d FB |
2313 | zfcp_fsf_set_data_dir(scsi_cmnd, &io->data_direction); |
2314 | ||
4318e08c CS |
2315 | fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd; |
2316 | zfcp_fc_scsi_to_fcp(fcp_cmnd, scsi_cmnd); | |
1da177e4 | 2317 | |
ef3eb71d FB |
2318 | if (scsi_prot_sg_count(scsi_cmnd)) { |
2319 | zfcp_qdio_set_data_div(qdio, &req->qdio_req, | |
2320 | scsi_prot_sg_count(scsi_cmnd)); | |
2321 | dix_bytes = zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, | |
2322 | scsi_prot_sglist(scsi_cmnd)); | |
2323 | io->prot_data_length = dix_bytes; | |
2324 | } | |
2325 | ||
1674b405 | 2326 | real_bytes = zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, |
01b04759 | 2327 | scsi_sglist(scsi_cmnd)); |
ef3eb71d FB |
2328 | |
2329 | if (unlikely(real_bytes < 0) || unlikely(dix_bytes < 0)) | |
c41f8cbd | 2330 | goto failed_scsi_cmnd; |
1da177e4 | 2331 | |
ef3eb71d FB |
2332 | zfcp_qdio_set_sbale_last(adapter->qdio, &req->qdio_req); |
2333 | ||
c41f8cbd SS |
2334 | retval = zfcp_fsf_req_send(req); |
2335 | if (unlikely(retval)) | |
2336 | goto failed_scsi_cmnd; | |
1da177e4 | 2337 | |
c41f8cbd | 2338 | goto out; |
1da177e4 | 2339 | |
c41f8cbd | 2340 | failed_scsi_cmnd: |
c41f8cbd SS |
2341 | zfcp_fsf_req_free(req); |
2342 | scsi_cmnd->host_scribble = NULL; | |
2343 | out: | |
564e1c86 | 2344 | spin_unlock(&qdio->req_q_lock); |
c41f8cbd | 2345 | return retval; |
1da177e4 LT |
2346 | } |
2347 | ||
2348 | /** | |
b62a8d9b CS |
2349 | * zfcp_fsf_fcp_task_mgmt - send SCSI task management command |
2350 | * @scmnd: SCSI command to send the task management command for | |
c41f8cbd | 2351 | * @tm_flags: unsigned byte for task management flags |
c41f8cbd | 2352 | * Returns: on success pointer to struct fsf_req, NULL otherwise |
1da177e4 | 2353 | */ |
b62a8d9b CS |
2354 | struct zfcp_fsf_req *zfcp_fsf_fcp_task_mgmt(struct scsi_cmnd *scmnd, |
2355 | u8 tm_flags) | |
1da177e4 | 2356 | { |
c41f8cbd | 2357 | struct zfcp_fsf_req *req = NULL; |
4318e08c | 2358 | struct fcp_cmnd *fcp_cmnd; |
b62a8d9b CS |
2359 | struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(scmnd->device); |
2360 | struct zfcp_qdio *qdio = zfcp_sdev->port->adapter->qdio; | |
1da177e4 | 2361 | |
b62a8d9b | 2362 | if (unlikely(!(atomic_read(&zfcp_sdev->status) & |
c41f8cbd SS |
2363 | ZFCP_STATUS_COMMON_UNBLOCKED))) |
2364 | return NULL; | |
1da177e4 | 2365 | |
44a24cb3 | 2366 | spin_lock_irq(&qdio->req_q_lock); |
6b9e1520 | 2367 | if (zfcp_qdio_sbal_get(qdio)) |
c41f8cbd | 2368 | goto out; |
09a46c6e | 2369 | |
564e1c86 | 2370 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_FCP_CMND, |
1674b405 | 2371 | SBAL_FLAGS0_TYPE_WRITE, |
564e1c86 | 2372 | qdio->adapter->pool.scsi_req); |
09a46c6e | 2373 | |
633528c3 SS |
2374 | if (IS_ERR(req)) { |
2375 | req = NULL; | |
c41f8cbd | 2376 | goto out; |
633528c3 | 2377 | } |
1da177e4 | 2378 | |
c41f8cbd | 2379 | req->status |= ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT; |
b62a8d9b | 2380 | req->data = scmnd; |
c41f8cbd | 2381 | req->handler = zfcp_fsf_send_fcp_command_handler; |
b62a8d9b CS |
2382 | req->qtcb->header.lun_handle = zfcp_sdev->lun_handle; |
2383 | req->qtcb->header.port_handle = zfcp_sdev->port->handle; | |
c41f8cbd SS |
2384 | req->qtcb->bottom.io.data_direction = FSF_DATADIR_CMND; |
2385 | req->qtcb->bottom.io.service_class = FSF_CLASS_3; | |
4318e08c | 2386 | req->qtcb->bottom.io.fcp_cmnd_length = FCP_CMND_LEN; |
c41f8cbd | 2387 | |
1674b405 | 2388 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
1da177e4 | 2389 | |
4318e08c | 2390 | fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd; |
b62a8d9b | 2391 | zfcp_fc_fcp_tm(fcp_cmnd, scmnd->device, tm_flags); |
1da177e4 | 2392 | |
c41f8cbd SS |
2393 | zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT); |
2394 | if (!zfcp_fsf_req_send(req)) | |
2395 | goto out; | |
1da177e4 | 2396 | |
c41f8cbd SS |
2397 | zfcp_fsf_req_free(req); |
2398 | req = NULL; | |
2399 | out: | |
44a24cb3 | 2400 | spin_unlock_irq(&qdio->req_q_lock); |
c41f8cbd SS |
2401 | return req; |
2402 | } | |
1da177e4 | 2403 | |
c41f8cbd SS |
2404 | static void zfcp_fsf_control_file_handler(struct zfcp_fsf_req *req) |
2405 | { | |
1da177e4 LT |
2406 | } |
2407 | ||
c41f8cbd SS |
2408 | /** |
2409 | * zfcp_fsf_control_file - control file upload/download | |
2410 | * @adapter: pointer to struct zfcp_adapter | |
2411 | * @fsf_cfdc: pointer to struct zfcp_fsf_cfdc | |
2412 | * Returns: on success pointer to struct zfcp_fsf_req, NULL otherwise | |
1da177e4 | 2413 | */ |
c41f8cbd SS |
2414 | struct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *adapter, |
2415 | struct zfcp_fsf_cfdc *fsf_cfdc) | |
1da177e4 | 2416 | { |
564e1c86 | 2417 | struct zfcp_qdio *qdio = adapter->qdio; |
c41f8cbd SS |
2418 | struct zfcp_fsf_req *req = NULL; |
2419 | struct fsf_qtcb_bottom_support *bottom; | |
2420 | int direction, retval = -EIO, bytes; | |
2421 | ||
2422 | if (!(adapter->adapter_features & FSF_FEATURE_CFDC)) | |
2423 | return ERR_PTR(-EOPNOTSUPP); | |
2424 | ||
2425 | switch (fsf_cfdc->command) { | |
2426 | case FSF_QTCB_DOWNLOAD_CONTROL_FILE: | |
2427 | direction = SBAL_FLAGS0_TYPE_WRITE; | |
2428 | break; | |
2429 | case FSF_QTCB_UPLOAD_CONTROL_FILE: | |
2430 | direction = SBAL_FLAGS0_TYPE_READ; | |
2431 | break; | |
2432 | default: | |
2433 | return ERR_PTR(-EINVAL); | |
2434 | } | |
1da177e4 | 2435 | |
44a24cb3 | 2436 | spin_lock_irq(&qdio->req_q_lock); |
6b9e1520 | 2437 | if (zfcp_qdio_sbal_get(qdio)) |
c41f8cbd | 2438 | goto out; |
1da177e4 | 2439 | |
1674b405 | 2440 | req = zfcp_fsf_req_create(qdio, fsf_cfdc->command, direction, NULL); |
025270f0 | 2441 | if (IS_ERR(req)) { |
c41f8cbd SS |
2442 | retval = -EPERM; |
2443 | goto out; | |
2444 | } | |
1da177e4 | 2445 | |
c41f8cbd | 2446 | req->handler = zfcp_fsf_control_file_handler; |
1da177e4 | 2447 | |
c41f8cbd SS |
2448 | bottom = &req->qtcb->bottom.support; |
2449 | bottom->operation_subtype = FSF_CFDC_OPERATION_SUBTYPE; | |
2450 | bottom->option = fsf_cfdc->option; | |
8a36e453 | 2451 | |
01b04759 SS |
2452 | bytes = zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, fsf_cfdc->sg); |
2453 | ||
c41f8cbd | 2454 | if (bytes != ZFCP_CFDC_MAX_SIZE) { |
c41f8cbd SS |
2455 | zfcp_fsf_req_free(req); |
2456 | goto out; | |
2457 | } | |
ef3eb71d | 2458 | zfcp_qdio_set_sbale_last(adapter->qdio, &req->qdio_req); |
1da177e4 | 2459 | |
c41f8cbd SS |
2460 | zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); |
2461 | retval = zfcp_fsf_req_send(req); | |
2462 | out: | |
44a24cb3 | 2463 | spin_unlock_irq(&qdio->req_q_lock); |
8a36e453 | 2464 | |
c41f8cbd | 2465 | if (!retval) { |
058b8647 | 2466 | wait_for_completion(&req->completion); |
c41f8cbd | 2467 | return req; |
1da177e4 | 2468 | } |
c41f8cbd | 2469 | return ERR_PTR(retval); |
1da177e4 | 2470 | } |
bd63eaf4 SS |
2471 | |
2472 | /** | |
2473 | * zfcp_fsf_reqid_check - validate req_id contained in SBAL returned by QDIO | |
2474 | * @adapter: pointer to struct zfcp_adapter | |
2475 | * @sbal_idx: response queue index of SBAL to be processed | |
2476 | */ | |
564e1c86 | 2477 | void zfcp_fsf_reqid_check(struct zfcp_qdio *qdio, int sbal_idx) |
bd63eaf4 | 2478 | { |
564e1c86 | 2479 | struct zfcp_adapter *adapter = qdio->adapter; |
706eca49 | 2480 | struct qdio_buffer *sbal = qdio->res_q[sbal_idx]; |
bd63eaf4 SS |
2481 | struct qdio_buffer_element *sbale; |
2482 | struct zfcp_fsf_req *fsf_req; | |
b6bd2fb9 | 2483 | unsigned long req_id; |
bd63eaf4 SS |
2484 | int idx; |
2485 | ||
2486 | for (idx = 0; idx < QDIO_MAX_ELEMENTS_PER_BUFFER; idx++) { | |
2487 | ||
2488 | sbale = &sbal->element[idx]; | |
2489 | req_id = (unsigned long) sbale->addr; | |
b6bd2fb9 | 2490 | fsf_req = zfcp_reqlist_find_rm(adapter->req_list, req_id); |
bd63eaf4 | 2491 | |
339f4f4e | 2492 | if (!fsf_req) { |
bd63eaf4 SS |
2493 | /* |
2494 | * Unknown request means that we have potentially memory | |
2495 | * corruption and must stop the machine immediately. | |
2496 | */ | |
339f4f4e | 2497 | zfcp_qdio_siosl(adapter); |
bd63eaf4 SS |
2498 | panic("error: unknown req_id (%lx) on adapter %s.\n", |
2499 | req_id, dev_name(&adapter->ccw_device->dev)); | |
339f4f4e | 2500 | } |
bd63eaf4 | 2501 | |
34c2b712 | 2502 | fsf_req->qdio_req.sbal_response = sbal_idx; |
bd63eaf4 SS |
2503 | zfcp_fsf_req_complete(fsf_req); |
2504 | ||
2505 | if (likely(sbale->flags & SBAL_FLAGS_LAST_ENTRY)) | |
2506 | break; | |
2507 | } | |
2508 | } |