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Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
553448f6 | 2 | * zfcp device driver |
1da177e4 | 3 | * |
553448f6 | 4 | * Implementation of FSF commands. |
1da177e4 | 5 | * |
a53c8fab | 6 | * Copyright IBM Corp. 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 | |
259afe2e CS |
21 | struct kmem_cache *zfcp_fsf_qtcb_cache; |
22 | ||
287ac01a CS |
23 | static void zfcp_fsf_request_timeout_handler(unsigned long data) |
24 | { | |
25 | struct zfcp_adapter *adapter = (struct zfcp_adapter *) data; | |
339f4f4e | 26 | zfcp_qdio_siosl(adapter); |
5ffd51a5 | 27 | zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED, |
ea4a3a6a | 28 | "fsrth_1"); |
287ac01a CS |
29 | } |
30 | ||
31 | static void zfcp_fsf_start_timer(struct zfcp_fsf_req *fsf_req, | |
32 | unsigned long timeout) | |
33 | { | |
34 | fsf_req->timer.function = zfcp_fsf_request_timeout_handler; | |
35 | fsf_req->timer.data = (unsigned long) fsf_req->adapter; | |
36 | fsf_req->timer.expires = jiffies + timeout; | |
37 | add_timer(&fsf_req->timer); | |
38 | } | |
39 | ||
40 | static void zfcp_fsf_start_erp_timer(struct zfcp_fsf_req *fsf_req) | |
41 | { | |
42 | BUG_ON(!fsf_req->erp_action); | |
43 | fsf_req->timer.function = zfcp_erp_timeout_handler; | |
44 | fsf_req->timer.data = (unsigned long) fsf_req->erp_action; | |
45 | fsf_req->timer.expires = jiffies + 30 * HZ; | |
46 | add_timer(&fsf_req->timer); | |
47 | } | |
48 | ||
1da177e4 LT |
49 | /* association between FSF command and FSF QTCB type */ |
50 | static u32 fsf_qtcb_type[] = { | |
51 | [FSF_QTCB_FCP_CMND] = FSF_IO_COMMAND, | |
52 | [FSF_QTCB_ABORT_FCP_CMND] = FSF_SUPPORT_COMMAND, | |
53 | [FSF_QTCB_OPEN_PORT_WITH_DID] = FSF_SUPPORT_COMMAND, | |
54 | [FSF_QTCB_OPEN_LUN] = FSF_SUPPORT_COMMAND, | |
55 | [FSF_QTCB_CLOSE_LUN] = FSF_SUPPORT_COMMAND, | |
56 | [FSF_QTCB_CLOSE_PORT] = FSF_SUPPORT_COMMAND, | |
57 | [FSF_QTCB_CLOSE_PHYSICAL_PORT] = FSF_SUPPORT_COMMAND, | |
58 | [FSF_QTCB_SEND_ELS] = FSF_SUPPORT_COMMAND, | |
59 | [FSF_QTCB_SEND_GENERIC] = FSF_SUPPORT_COMMAND, | |
60 | [FSF_QTCB_EXCHANGE_CONFIG_DATA] = FSF_CONFIG_COMMAND, | |
61 | [FSF_QTCB_EXCHANGE_PORT_DATA] = FSF_PORT_COMMAND, | |
62 | [FSF_QTCB_DOWNLOAD_CONTROL_FILE] = FSF_SUPPORT_COMMAND, | |
63 | [FSF_QTCB_UPLOAD_CONTROL_FILE] = FSF_SUPPORT_COMMAND | |
64 | }; | |
65 | ||
553448f6 CS |
66 | static void zfcp_fsf_class_not_supp(struct zfcp_fsf_req *req) |
67 | { | |
ff3b24fa CS |
68 | dev_err(&req->adapter->ccw_device->dev, "FCP device not " |
69 | "operational because of an unsupported FC class\n"); | |
ea4a3a6a | 70 | zfcp_erp_adapter_shutdown(req->adapter, 0, "fscns_1"); |
553448f6 CS |
71 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
72 | } | |
73 | ||
c41f8cbd SS |
74 | /** |
75 | * zfcp_fsf_req_free - free memory used by fsf request | |
76 | * @fsf_req: pointer to struct zfcp_fsf_req | |
1da177e4 | 77 | */ |
c41f8cbd | 78 | void zfcp_fsf_req_free(struct zfcp_fsf_req *req) |
1da177e4 | 79 | { |
c41f8cbd | 80 | if (likely(req->pool)) { |
a4623c46 SS |
81 | if (likely(req->qtcb)) |
82 | mempool_free(req->qtcb, req->adapter->pool.qtcb_pool); | |
c41f8cbd | 83 | mempool_free(req, req->pool); |
dd52e0ea HC |
84 | return; |
85 | } | |
86 | ||
a4623c46 | 87 | if (likely(req->qtcb)) |
259afe2e | 88 | kmem_cache_free(zfcp_fsf_qtcb_cache, req->qtcb); |
a4623c46 | 89 | kfree(req); |
1da177e4 LT |
90 | } |
91 | ||
c41f8cbd | 92 | static void zfcp_fsf_status_read_port_closed(struct zfcp_fsf_req *req) |
1da177e4 | 93 | { |
ecf0c772 | 94 | unsigned long flags; |
c41f8cbd SS |
95 | struct fsf_status_read_buffer *sr_buf = req->data; |
96 | struct zfcp_adapter *adapter = req->adapter; | |
97 | struct zfcp_port *port; | |
800c0cad | 98 | int d_id = ntoh24(sr_buf->d_id); |
1da177e4 | 99 | |
ecf0c772 SS |
100 | read_lock_irqsave(&adapter->port_list_lock, flags); |
101 | list_for_each_entry(port, &adapter->port_list, list) | |
c41f8cbd | 102 | if (port->d_id == d_id) { |
ea4a3a6a | 103 | zfcp_erp_port_reopen(port, 0, "fssrpc1"); |
ecf0c772 | 104 | break; |
c41f8cbd | 105 | } |
ecf0c772 | 106 | read_unlock_irqrestore(&adapter->port_list_lock, flags); |
1da177e4 LT |
107 | } |
108 | ||
edaed859 | 109 | static void zfcp_fsf_link_down_info_eval(struct zfcp_fsf_req *req, |
c41f8cbd | 110 | struct fsf_link_down_info *link_down) |
aef4a983 | 111 | { |
c41f8cbd | 112 | struct zfcp_adapter *adapter = req->adapter; |
698ec016 | 113 | |
c41f8cbd | 114 | if (atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED) |
ee69ab7a MS |
115 | return; |
116 | ||
117 | atomic_set_mask(ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED, &adapter->status); | |
70932935 | 118 | |
a2fa0aed | 119 | zfcp_scsi_schedule_rports_block(adapter); |
ee69ab7a | 120 | |
c41f8cbd | 121 | if (!link_down) |
2f8f3ed5 | 122 | goto out; |
ee69ab7a | 123 | |
aef4a983 MS |
124 | switch (link_down->error_code) { |
125 | case FSF_PSQ_LINK_NO_LIGHT: | |
c41f8cbd | 126 | dev_warn(&req->adapter->ccw_device->dev, |
ff3b24fa CS |
127 | "There is no light signal from the local " |
128 | "fibre channel cable\n"); | |
aef4a983 MS |
129 | break; |
130 | case FSF_PSQ_LINK_WRAP_PLUG: | |
c41f8cbd | 131 | dev_warn(&req->adapter->ccw_device->dev, |
ff3b24fa CS |
132 | "There is a wrap plug instead of a fibre " |
133 | "channel cable\n"); | |
aef4a983 MS |
134 | break; |
135 | case FSF_PSQ_LINK_NO_FCP: | |
c41f8cbd | 136 | dev_warn(&req->adapter->ccw_device->dev, |
ff3b24fa CS |
137 | "The adjacent fibre channel node does not " |
138 | "support FCP\n"); | |
aef4a983 MS |
139 | break; |
140 | case FSF_PSQ_LINK_FIRMWARE_UPDATE: | |
c41f8cbd | 141 | dev_warn(&req->adapter->ccw_device->dev, |
ff3b24fa CS |
142 | "The FCP device is suspended because of a " |
143 | "firmware update\n"); | |
553448f6 | 144 | break; |
aef4a983 | 145 | case FSF_PSQ_LINK_INVALID_WWPN: |
c41f8cbd | 146 | dev_warn(&req->adapter->ccw_device->dev, |
ff3b24fa CS |
147 | "The FCP device detected a WWPN that is " |
148 | "duplicate or not valid\n"); | |
aef4a983 MS |
149 | break; |
150 | case FSF_PSQ_LINK_NO_NPIV_SUPPORT: | |
c41f8cbd | 151 | dev_warn(&req->adapter->ccw_device->dev, |
ff3b24fa | 152 | "The fibre channel fabric does not support NPIV\n"); |
aef4a983 MS |
153 | break; |
154 | case FSF_PSQ_LINK_NO_FCP_RESOURCES: | |
c41f8cbd | 155 | dev_warn(&req->adapter->ccw_device->dev, |
ff3b24fa | 156 | "The FCP adapter cannot support more NPIV ports\n"); |
aef4a983 MS |
157 | break; |
158 | case FSF_PSQ_LINK_NO_FABRIC_RESOURCES: | |
c41f8cbd | 159 | dev_warn(&req->adapter->ccw_device->dev, |
ff3b24fa CS |
160 | "The adjacent switch cannot support " |
161 | "more NPIV ports\n"); | |
aef4a983 MS |
162 | break; |
163 | case FSF_PSQ_LINK_FABRIC_LOGIN_UNABLE: | |
c41f8cbd | 164 | dev_warn(&req->adapter->ccw_device->dev, |
ff3b24fa CS |
165 | "The FCP adapter could not log in to the " |
166 | "fibre channel fabric\n"); | |
aef4a983 MS |
167 | break; |
168 | case FSF_PSQ_LINK_WWPN_ASSIGNMENT_CORRUPTED: | |
c41f8cbd | 169 | dev_warn(&req->adapter->ccw_device->dev, |
ff3b24fa CS |
170 | "The WWPN assignment file on the FCP adapter " |
171 | "has been damaged\n"); | |
aef4a983 MS |
172 | break; |
173 | case FSF_PSQ_LINK_MODE_TABLE_CURRUPTED: | |
c41f8cbd | 174 | dev_warn(&req->adapter->ccw_device->dev, |
ff3b24fa CS |
175 | "The mode table on the FCP adapter " |
176 | "has been damaged\n"); | |
aef4a983 MS |
177 | break; |
178 | case FSF_PSQ_LINK_NO_WWPN_ASSIGNMENT: | |
c41f8cbd | 179 | dev_warn(&req->adapter->ccw_device->dev, |
ff3b24fa CS |
180 | "All NPIV ports on the FCP adapter have " |
181 | "been assigned\n"); | |
aef4a983 MS |
182 | break; |
183 | default: | |
c41f8cbd | 184 | dev_warn(&req->adapter->ccw_device->dev, |
ff3b24fa CS |
185 | "The link between the FCP adapter and " |
186 | "the FC fabric is down\n"); | |
aef4a983 | 187 | } |
c41f8cbd | 188 | out: |
edaed859 | 189 | zfcp_erp_set_adapter_status(adapter, ZFCP_STATUS_COMMON_ERP_FAILED); |
aef4a983 MS |
190 | } |
191 | ||
c41f8cbd | 192 | static void zfcp_fsf_status_read_link_down(struct zfcp_fsf_req *req) |
1da177e4 | 193 | { |
c41f8cbd SS |
194 | struct fsf_status_read_buffer *sr_buf = req->data; |
195 | struct fsf_link_down_info *ldi = | |
196 | (struct fsf_link_down_info *) &sr_buf->payload; | |
1da177e4 | 197 | |
c41f8cbd SS |
198 | switch (sr_buf->status_subtype) { |
199 | case FSF_STATUS_READ_SUB_NO_PHYSICAL_LINK: | |
edaed859 | 200 | zfcp_fsf_link_down_info_eval(req, ldi); |
1da177e4 | 201 | break; |
c41f8cbd | 202 | case FSF_STATUS_READ_SUB_FDISC_FAILED: |
edaed859 | 203 | zfcp_fsf_link_down_info_eval(req, ldi); |
1da177e4 | 204 | break; |
c41f8cbd | 205 | case FSF_STATUS_READ_SUB_FIRMWARE_UPDATE: |
edaed859 | 206 | zfcp_fsf_link_down_info_eval(req, NULL); |
c41f8cbd SS |
207 | }; |
208 | } | |
1da177e4 | 209 | |
c41f8cbd SS |
210 | static void zfcp_fsf_status_read_handler(struct zfcp_fsf_req *req) |
211 | { | |
212 | struct zfcp_adapter *adapter = req->adapter; | |
213 | struct fsf_status_read_buffer *sr_buf = req->data; | |
1da177e4 | 214 | |
c41f8cbd | 215 | if (req->status & ZFCP_STATUS_FSFREQ_DISMISSED) { |
a54ca0f6 | 216 | zfcp_dbf_hba_fsf_uss("fssrh_1", req); |
c7b279ae | 217 | mempool_free(virt_to_page(sr_buf), adapter->pool.sr_data); |
c41f8cbd SS |
218 | zfcp_fsf_req_free(req); |
219 | return; | |
220 | } | |
1da177e4 | 221 | |
0100998d | 222 | zfcp_dbf_hba_fsf_uss("fssrh_4", req); |
1da177e4 | 223 | |
c41f8cbd SS |
224 | switch (sr_buf->status_type) { |
225 | case FSF_STATUS_READ_PORT_CLOSED: | |
226 | zfcp_fsf_status_read_port_closed(req); | |
1da177e4 | 227 | break; |
c41f8cbd SS |
228 | case FSF_STATUS_READ_INCOMING_ELS: |
229 | zfcp_fc_incoming_els(req); | |
1da177e4 | 230 | break; |
c41f8cbd | 231 | case FSF_STATUS_READ_SENSE_DATA_AVAIL: |
1da177e4 | 232 | break; |
c41f8cbd | 233 | case FSF_STATUS_READ_BIT_ERROR_THRESHOLD: |
ff3b24fa CS |
234 | dev_warn(&adapter->ccw_device->dev, |
235 | "The error threshold for checksum statistics " | |
236 | "has been exceeded\n"); | |
a54ca0f6 | 237 | zfcp_dbf_hba_bit_err("fssrh_3", req); |
1da177e4 | 238 | break; |
c41f8cbd SS |
239 | case FSF_STATUS_READ_LINK_DOWN: |
240 | zfcp_fsf_status_read_link_down(req); | |
2d1e547f | 241 | zfcp_fc_enqueue_event(adapter, FCH_EVT_LINKDOWN, 0); |
c41f8cbd SS |
242 | break; |
243 | case FSF_STATUS_READ_LINK_UP: | |
244 | dev_info(&adapter->ccw_device->dev, | |
ff3b24fa | 245 | "The local link has been restored\n"); |
c41f8cbd | 246 | /* All ports should be marked as ready to run again */ |
edaed859 SS |
247 | zfcp_erp_set_adapter_status(adapter, |
248 | ZFCP_STATUS_COMMON_RUNNING); | |
c41f8cbd SS |
249 | zfcp_erp_adapter_reopen(adapter, |
250 | ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED | | |
251 | ZFCP_STATUS_COMMON_ERP_FAILED, | |
ea4a3a6a | 252 | "fssrh_2"); |
2d1e547f SS |
253 | zfcp_fc_enqueue_event(adapter, FCH_EVT_LINKUP, 0); |
254 | ||
c41f8cbd SS |
255 | break; |
256 | case FSF_STATUS_READ_NOTIFICATION_LOST: | |
257 | if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_ACT_UPDATED) | |
a1ca4831 | 258 | zfcp_cfdc_adapter_access_changed(adapter); |
c41f8cbd | 259 | if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_INCOMING_ELS) |
43f60cbd | 260 | zfcp_fc_conditional_port_scan(adapter); |
c41f8cbd SS |
261 | break; |
262 | case FSF_STATUS_READ_CFDC_UPDATED: | |
a1ca4831 | 263 | zfcp_cfdc_adapter_access_changed(adapter); |
c41f8cbd SS |
264 | break; |
265 | case FSF_STATUS_READ_FEATURE_UPDATE_ALERT: | |
266 | adapter->adapter_features = sr_buf->payload.word[0]; | |
1da177e4 | 267 | break; |
1da177e4 LT |
268 | } |
269 | ||
c7b279ae | 270 | mempool_free(virt_to_page(sr_buf), adapter->pool.sr_data); |
c41f8cbd | 271 | zfcp_fsf_req_free(req); |
1da177e4 | 272 | |
c41f8cbd | 273 | atomic_inc(&adapter->stat_miss); |
4544683a | 274 | queue_work(adapter->work_queue, &adapter->stat_work); |
c41f8cbd | 275 | } |
1da177e4 | 276 | |
c41f8cbd SS |
277 | static void zfcp_fsf_fsfstatus_qual_eval(struct zfcp_fsf_req *req) |
278 | { | |
279 | switch (req->qtcb->header.fsf_status_qual.word[0]) { | |
280 | case FSF_SQ_FCP_RSP_AVAILABLE: | |
281 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: | |
282 | case FSF_SQ_NO_RETRY_POSSIBLE: | |
283 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: | |
284 | return; | |
285 | case FSF_SQ_COMMAND_ABORTED: | |
c41f8cbd SS |
286 | break; |
287 | case FSF_SQ_NO_RECOM: | |
288 | dev_err(&req->adapter->ccw_device->dev, | |
ff3b24fa CS |
289 | "The FCP adapter reported a problem " |
290 | "that cannot be recovered\n"); | |
339f4f4e | 291 | zfcp_qdio_siosl(req->adapter); |
ea4a3a6a | 292 | zfcp_erp_adapter_shutdown(req->adapter, 0, "fsfsqe1"); |
c41f8cbd SS |
293 | break; |
294 | } | |
295 | /* all non-return stats set FSFREQ_ERROR*/ | |
296 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; | |
1da177e4 LT |
297 | } |
298 | ||
c41f8cbd | 299 | static void zfcp_fsf_fsfstatus_eval(struct zfcp_fsf_req *req) |
1da177e4 | 300 | { |
c41f8cbd SS |
301 | if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) |
302 | return; | |
1da177e4 | 303 | |
c41f8cbd SS |
304 | switch (req->qtcb->header.fsf_status) { |
305 | case FSF_UNKNOWN_COMMAND: | |
306 | dev_err(&req->adapter->ccw_device->dev, | |
ff3b24fa | 307 | "The FCP adapter does not recognize the command 0x%x\n", |
c41f8cbd | 308 | req->qtcb->header.fsf_command); |
ea4a3a6a | 309 | zfcp_erp_adapter_shutdown(req->adapter, 0, "fsfse_1"); |
c41f8cbd SS |
310 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
311 | break; | |
312 | case FSF_ADAPTER_STATUS_AVAILABLE: | |
313 | zfcp_fsf_fsfstatus_qual_eval(req); | |
314 | break; | |
315 | } | |
316 | } | |
1da177e4 | 317 | |
c41f8cbd SS |
318 | static void zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *req) |
319 | { | |
320 | struct zfcp_adapter *adapter = req->adapter; | |
321 | struct fsf_qtcb *qtcb = req->qtcb; | |
322 | union fsf_prot_status_qual *psq = &qtcb->prefix.prot_status_qual; | |
1da177e4 | 323 | |
5771710b | 324 | zfcp_dbf_hba_fsf_response(req); |
1da177e4 | 325 | |
c41f8cbd | 326 | if (req->status & ZFCP_STATUS_FSFREQ_DISMISSED) { |
4c571c65 | 327 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
c41f8cbd SS |
328 | return; |
329 | } | |
1da177e4 | 330 | |
c41f8cbd SS |
331 | switch (qtcb->prefix.prot_status) { |
332 | case FSF_PROT_GOOD: | |
333 | case FSF_PROT_FSF_STATUS_PRESENTED: | |
334 | return; | |
335 | case FSF_PROT_QTCB_VERSION_ERROR: | |
336 | dev_err(&adapter->ccw_device->dev, | |
ff3b24fa CS |
337 | "QTCB version 0x%x not supported by FCP adapter " |
338 | "(0x%x to 0x%x)\n", FSF_QTCB_CURRENT_VERSION, | |
339 | psq->word[0], psq->word[1]); | |
ea4a3a6a | 340 | zfcp_erp_adapter_shutdown(adapter, 0, "fspse_1"); |
c41f8cbd SS |
341 | break; |
342 | case FSF_PROT_ERROR_STATE: | |
343 | case FSF_PROT_SEQ_NUMB_ERROR: | |
ea4a3a6a | 344 | zfcp_erp_adapter_reopen(adapter, 0, "fspse_2"); |
4c571c65 | 345 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
c41f8cbd SS |
346 | break; |
347 | case FSF_PROT_UNSUPP_QTCB_TYPE: | |
348 | dev_err(&adapter->ccw_device->dev, | |
ff3b24fa | 349 | "The QTCB type is not supported by the FCP adapter\n"); |
ea4a3a6a | 350 | zfcp_erp_adapter_shutdown(adapter, 0, "fspse_3"); |
c41f8cbd SS |
351 | break; |
352 | case FSF_PROT_HOST_CONNECTION_INITIALIZING: | |
353 | atomic_set_mask(ZFCP_STATUS_ADAPTER_HOST_CON_INIT, | |
354 | &adapter->status); | |
355 | break; | |
356 | case FSF_PROT_DUPLICATE_REQUEST_ID: | |
357 | dev_err(&adapter->ccw_device->dev, | |
ff3b24fa | 358 | "0x%Lx is an ambiguous request identifier\n", |
c41f8cbd | 359 | (unsigned long long)qtcb->bottom.support.req_handle); |
ea4a3a6a | 360 | zfcp_erp_adapter_shutdown(adapter, 0, "fspse_4"); |
c41f8cbd SS |
361 | break; |
362 | case FSF_PROT_LINK_DOWN: | |
edaed859 | 363 | zfcp_fsf_link_down_info_eval(req, &psq->link_down_info); |
452b505c | 364 | /* go through reopen to flush pending requests */ |
ea4a3a6a | 365 | zfcp_erp_adapter_reopen(adapter, 0, "fspse_6"); |
c41f8cbd SS |
366 | break; |
367 | case FSF_PROT_REEST_QUEUE: | |
368 | /* All ports should be marked as ready to run again */ | |
edaed859 SS |
369 | zfcp_erp_set_adapter_status(adapter, |
370 | ZFCP_STATUS_COMMON_RUNNING); | |
c41f8cbd SS |
371 | zfcp_erp_adapter_reopen(adapter, |
372 | ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED | | |
5ffd51a5 | 373 | ZFCP_STATUS_COMMON_ERP_FAILED, |
ea4a3a6a | 374 | "fspse_8"); |
c41f8cbd SS |
375 | break; |
376 | default: | |
377 | dev_err(&adapter->ccw_device->dev, | |
ff3b24fa | 378 | "0x%x is not a valid transfer protocol status\n", |
c41f8cbd | 379 | qtcb->prefix.prot_status); |
339f4f4e | 380 | zfcp_qdio_siosl(adapter); |
ea4a3a6a | 381 | zfcp_erp_adapter_shutdown(adapter, 0, "fspse_9"); |
c41f8cbd SS |
382 | } |
383 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; | |
1da177e4 LT |
384 | } |
385 | ||
c41f8cbd SS |
386 | /** |
387 | * zfcp_fsf_req_complete - process completion of a FSF request | |
388 | * @fsf_req: The FSF request that has been completed. | |
389 | * | |
390 | * When a request has been completed either from the FCP adapter, | |
391 | * or it has been dismissed due to a queue shutdown, this function | |
392 | * is called to process the completion status and trigger further | |
393 | * events related to the FSF request. | |
394 | */ | |
bd63eaf4 | 395 | static void zfcp_fsf_req_complete(struct zfcp_fsf_req *req) |
1da177e4 | 396 | { |
c41f8cbd SS |
397 | if (unlikely(req->fsf_command == FSF_QTCB_UNSOLICITED_STATUS)) { |
398 | zfcp_fsf_status_read_handler(req); | |
399 | return; | |
400 | } | |
1da177e4 | 401 | |
c41f8cbd SS |
402 | del_timer(&req->timer); |
403 | zfcp_fsf_protstatus_eval(req); | |
404 | zfcp_fsf_fsfstatus_eval(req); | |
405 | req->handler(req); | |
1da177e4 | 406 | |
c41f8cbd | 407 | if (req->erp_action) |
287ac01a | 408 | zfcp_erp_notify(req->erp_action, 0); |
1da177e4 | 409 | |
c41f8cbd SS |
410 | if (likely(req->status & ZFCP_STATUS_FSFREQ_CLEANUP)) |
411 | zfcp_fsf_req_free(req); | |
412 | else | |
058b8647 | 413 | complete(&req->completion); |
c41f8cbd | 414 | } |
1da177e4 | 415 | |
bd63eaf4 SS |
416 | /** |
417 | * zfcp_fsf_req_dismiss_all - dismiss all fsf requests | |
418 | * @adapter: pointer to struct zfcp_adapter | |
419 | * | |
420 | * Never ever call this without shutting down the adapter first. | |
421 | * Otherwise the adapter would continue using and corrupting s390 storage. | |
422 | * Included BUG_ON() call to ensure this is done. | |
423 | * ERP is supposed to be the only user of this function. | |
424 | */ | |
425 | void zfcp_fsf_req_dismiss_all(struct zfcp_adapter *adapter) | |
426 | { | |
427 | struct zfcp_fsf_req *req, *tmp; | |
bd63eaf4 | 428 | LIST_HEAD(remove_queue); |
bd63eaf4 SS |
429 | |
430 | BUG_ON(atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP); | |
b6bd2fb9 | 431 | zfcp_reqlist_move(adapter->req_list, &remove_queue); |
bd63eaf4 SS |
432 | |
433 | list_for_each_entry_safe(req, tmp, &remove_queue, list) { | |
434 | list_del(&req->list); | |
435 | req->status |= ZFCP_STATUS_FSFREQ_DISMISSED; | |
436 | zfcp_fsf_req_complete(req); | |
437 | } | |
438 | } | |
439 | ||
d2201977 SM |
440 | #define ZFCP_FSF_PORTSPEED_1GBIT (1 << 0) |
441 | #define ZFCP_FSF_PORTSPEED_2GBIT (1 << 1) | |
442 | #define ZFCP_FSF_PORTSPEED_4GBIT (1 << 2) | |
443 | #define ZFCP_FSF_PORTSPEED_10GBIT (1 << 3) | |
444 | #define ZFCP_FSF_PORTSPEED_8GBIT (1 << 4) | |
445 | #define ZFCP_FSF_PORTSPEED_16GBIT (1 << 5) | |
446 | #define ZFCP_FSF_PORTSPEED_NOT_NEGOTIATED (1 << 15) | |
447 | ||
448 | static u32 zfcp_fsf_convert_portspeed(u32 fsf_speed) | |
449 | { | |
450 | u32 fdmi_speed = 0; | |
451 | if (fsf_speed & ZFCP_FSF_PORTSPEED_1GBIT) | |
452 | fdmi_speed |= FC_PORTSPEED_1GBIT; | |
453 | if (fsf_speed & ZFCP_FSF_PORTSPEED_2GBIT) | |
454 | fdmi_speed |= FC_PORTSPEED_2GBIT; | |
455 | if (fsf_speed & ZFCP_FSF_PORTSPEED_4GBIT) | |
456 | fdmi_speed |= FC_PORTSPEED_4GBIT; | |
457 | if (fsf_speed & ZFCP_FSF_PORTSPEED_10GBIT) | |
458 | fdmi_speed |= FC_PORTSPEED_10GBIT; | |
459 | if (fsf_speed & ZFCP_FSF_PORTSPEED_8GBIT) | |
460 | fdmi_speed |= FC_PORTSPEED_8GBIT; | |
461 | if (fsf_speed & ZFCP_FSF_PORTSPEED_16GBIT) | |
462 | fdmi_speed |= FC_PORTSPEED_16GBIT; | |
463 | if (fsf_speed & ZFCP_FSF_PORTSPEED_NOT_NEGOTIATED) | |
464 | fdmi_speed |= FC_PORTSPEED_NOT_NEGOTIATED; | |
465 | return fdmi_speed; | |
466 | } | |
467 | ||
c41f8cbd SS |
468 | static int zfcp_fsf_exchange_config_evaluate(struct zfcp_fsf_req *req) |
469 | { | |
9d05ce2c | 470 | struct fsf_qtcb_bottom_config *bottom = &req->qtcb->bottom.config; |
c41f8cbd SS |
471 | struct zfcp_adapter *adapter = req->adapter; |
472 | struct Scsi_Host *shost = adapter->scsi_host; | |
9d05ce2c | 473 | struct fc_els_flogi *nsp, *plogi; |
1da177e4 | 474 | |
9d05ce2c CS |
475 | /* adjust pointers for missing command code */ |
476 | nsp = (struct fc_els_flogi *) ((u8 *)&bottom->nport_serv_param | |
477 | - sizeof(u32)); | |
478 | plogi = (struct fc_els_flogi *) ((u8 *)&bottom->plogi_payload | |
479 | - sizeof(u32)); | |
1da177e4 | 480 | |
c41f8cbd SS |
481 | if (req->data) |
482 | memcpy(req->data, bottom, sizeof(*bottom)); | |
483 | ||
9d05ce2c CS |
484 | fc_host_port_name(shost) = nsp->fl_wwpn; |
485 | fc_host_node_name(shost) = nsp->fl_wwnn; | |
800c0cad | 486 | fc_host_port_id(shost) = ntoh24(bottom->s_id); |
d2201977 SM |
487 | fc_host_speed(shost) = |
488 | zfcp_fsf_convert_portspeed(bottom->fc_link_speed); | |
c41f8cbd SS |
489 | fc_host_supported_classes(shost) = FC_COS_CLASS2 | FC_COS_CLASS3; |
490 | ||
491 | adapter->hydra_version = bottom->adapter_type; | |
faf4cd85 | 492 | adapter->timer_ticks = bottom->timer_interval & ZFCP_FSF_TIMER_INT_MASK; |
8d88cf3f CS |
493 | adapter->stat_read_buf_num = max(bottom->status_read_buf_num, |
494 | (u16)FSF_STATUS_READS_RECOM); | |
c41f8cbd SS |
495 | |
496 | if (fc_host_permanent_port_name(shost) == -1) | |
497 | fc_host_permanent_port_name(shost) = fc_host_port_name(shost); | |
498 | ||
499 | switch (bottom->fc_topology) { | |
500 | case FSF_TOPO_P2P: | |
800c0cad | 501 | adapter->peer_d_id = ntoh24(bottom->peer_d_id); |
9d05ce2c CS |
502 | adapter->peer_wwpn = plogi->fl_wwpn; |
503 | adapter->peer_wwnn = plogi->fl_wwnn; | |
c41f8cbd | 504 | fc_host_port_type(shost) = FC_PORTTYPE_PTP; |
c41f8cbd SS |
505 | break; |
506 | case FSF_TOPO_FABRIC: | |
507 | fc_host_port_type(shost) = FC_PORTTYPE_NPORT; | |
c41f8cbd SS |
508 | break; |
509 | case FSF_TOPO_AL: | |
510 | fc_host_port_type(shost) = FC_PORTTYPE_NLPORT; | |
dceab655 | 511 | /* fall through */ |
c41f8cbd | 512 | default: |
c41f8cbd | 513 | dev_err(&adapter->ccw_device->dev, |
ff3b24fa CS |
514 | "Unknown or unsupported arbitrated loop " |
515 | "fibre channel topology detected\n"); | |
ea4a3a6a | 516 | zfcp_erp_adapter_shutdown(adapter, 0, "fsece_1"); |
c41f8cbd | 517 | return -EIO; |
1da177e4 | 518 | } |
c41f8cbd | 519 | |
ef3eb71d FB |
520 | zfcp_scsi_set_prot(adapter); |
521 | ||
1da177e4 LT |
522 | return 0; |
523 | } | |
524 | ||
c41f8cbd | 525 | static void zfcp_fsf_exchange_config_data_handler(struct zfcp_fsf_req *req) |
553448f6 CS |
526 | { |
527 | struct zfcp_adapter *adapter = req->adapter; | |
c41f8cbd SS |
528 | struct fsf_qtcb *qtcb = req->qtcb; |
529 | struct fsf_qtcb_bottom_config *bottom = &qtcb->bottom.config; | |
530 | struct Scsi_Host *shost = adapter->scsi_host; | |
553448f6 | 531 | |
c41f8cbd SS |
532 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
533 | return; | |
1da177e4 | 534 | |
c41f8cbd SS |
535 | adapter->fsf_lic_version = bottom->lic_version; |
536 | adapter->adapter_features = bottom->adapter_features; | |
537 | adapter->connection_features = bottom->connection_features; | |
538 | adapter->peer_wwpn = 0; | |
539 | adapter->peer_wwnn = 0; | |
540 | adapter->peer_d_id = 0; | |
8a36e453 | 541 | |
c41f8cbd SS |
542 | switch (qtcb->header.fsf_status) { |
543 | case FSF_GOOD: | |
544 | if (zfcp_fsf_exchange_config_evaluate(req)) | |
545 | return; | |
1da177e4 | 546 | |
c41f8cbd SS |
547 | if (bottom->max_qtcb_size < sizeof(struct fsf_qtcb)) { |
548 | dev_err(&adapter->ccw_device->dev, | |
ff3b24fa CS |
549 | "FCP adapter maximum QTCB size (%d bytes) " |
550 | "is too small\n", | |
551 | bottom->max_qtcb_size); | |
ea4a3a6a | 552 | zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh1"); |
c41f8cbd SS |
553 | return; |
554 | } | |
555 | atomic_set_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK, | |
556 | &adapter->status); | |
1da177e4 | 557 | break; |
c41f8cbd SS |
558 | case FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE: |
559 | fc_host_node_name(shost) = 0; | |
560 | fc_host_port_name(shost) = 0; | |
561 | fc_host_port_id(shost) = 0; | |
562 | fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; | |
563 | fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN; | |
564 | adapter->hydra_version = 0; | |
1da177e4 | 565 | |
f76ccaac DH |
566 | /* avoids adapter shutdown to be able to recognize |
567 | * events such as LINK UP */ | |
568 | atomic_set_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK, | |
569 | &adapter->status); | |
edaed859 | 570 | zfcp_fsf_link_down_info_eval(req, |
c41f8cbd | 571 | &qtcb->header.fsf_status_qual.link_down_info); |
1da177e4 | 572 | break; |
c41f8cbd | 573 | default: |
ea4a3a6a | 574 | zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh3"); |
c41f8cbd SS |
575 | return; |
576 | } | |
1da177e4 | 577 | |
c41f8cbd SS |
578 | if (adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT) { |
579 | adapter->hardware_version = bottom->hardware_version; | |
580 | memcpy(fc_host_serial_number(shost), bottom->serial_number, | |
581 | min(FC_SERIAL_NUMBER_SIZE, 17)); | |
582 | EBCASC(fc_host_serial_number(shost), | |
583 | min(FC_SERIAL_NUMBER_SIZE, 17)); | |
584 | } | |
1da177e4 | 585 | |
c41f8cbd SS |
586 | if (FSF_QTCB_CURRENT_VERSION < bottom->low_qtcb_version) { |
587 | dev_err(&adapter->ccw_device->dev, | |
ff3b24fa CS |
588 | "The FCP adapter only supports newer " |
589 | "control block versions\n"); | |
ea4a3a6a | 590 | zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh4"); |
c41f8cbd SS |
591 | return; |
592 | } | |
593 | if (FSF_QTCB_CURRENT_VERSION > bottom->high_qtcb_version) { | |
594 | dev_err(&adapter->ccw_device->dev, | |
ff3b24fa CS |
595 | "The FCP adapter only supports older " |
596 | "control block versions\n"); | |
ea4a3a6a | 597 | zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh5"); |
c41f8cbd SS |
598 | } |
599 | } | |
1da177e4 | 600 | |
c41f8cbd SS |
601 | static void zfcp_fsf_exchange_port_evaluate(struct zfcp_fsf_req *req) |
602 | { | |
603 | struct zfcp_adapter *adapter = req->adapter; | |
604 | struct fsf_qtcb_bottom_port *bottom = &req->qtcb->bottom.port; | |
605 | struct Scsi_Host *shost = adapter->scsi_host; | |
1da177e4 | 606 | |
c41f8cbd SS |
607 | if (req->data) |
608 | memcpy(req->data, bottom, sizeof(*bottom)); | |
9eb69aff | 609 | |
0282985d | 610 | if (adapter->connection_features & FSF_FEATURE_NPIV_MODE) { |
c41f8cbd | 611 | fc_host_permanent_port_name(shost) = bottom->wwpn; |
0282985d CS |
612 | fc_host_port_type(shost) = FC_PORTTYPE_NPIV; |
613 | } else | |
c41f8cbd SS |
614 | fc_host_permanent_port_name(shost) = fc_host_port_name(shost); |
615 | fc_host_maxframe_size(shost) = bottom->maximum_frame_size; | |
d2201977 SM |
616 | fc_host_supported_speeds(shost) = |
617 | zfcp_fsf_convert_portspeed(bottom->supported_speed); | |
2d8e62bb CS |
618 | memcpy(fc_host_supported_fc4s(shost), bottom->supported_fc4_types, |
619 | FC_FC4_LIST_SIZE); | |
620 | memcpy(fc_host_active_fc4s(shost), bottom->active_fc4_types, | |
621 | FC_FC4_LIST_SIZE); | |
c41f8cbd | 622 | } |
1da177e4 | 623 | |
c41f8cbd SS |
624 | static void zfcp_fsf_exchange_port_data_handler(struct zfcp_fsf_req *req) |
625 | { | |
c41f8cbd SS |
626 | struct fsf_qtcb *qtcb = req->qtcb; |
627 | ||
628 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) | |
629 | return; | |
630 | ||
631 | switch (qtcb->header.fsf_status) { | |
632 | case FSF_GOOD: | |
633 | zfcp_fsf_exchange_port_evaluate(req); | |
c41f8cbd SS |
634 | break; |
635 | case FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE: | |
636 | zfcp_fsf_exchange_port_evaluate(req); | |
edaed859 | 637 | zfcp_fsf_link_down_info_eval(req, |
c41f8cbd | 638 | &qtcb->header.fsf_status_qual.link_down_info); |
aef4a983 | 639 | break; |
1da177e4 | 640 | } |
c41f8cbd | 641 | } |
d26ab06e | 642 | |
a4623c46 | 643 | static struct zfcp_fsf_req *zfcp_fsf_alloc(mempool_t *pool) |
c41f8cbd SS |
644 | { |
645 | struct zfcp_fsf_req *req; | |
a4623c46 SS |
646 | |
647 | if (likely(pool)) | |
648 | req = mempool_alloc(pool, GFP_ATOMIC); | |
649 | else | |
650 | req = kmalloc(sizeof(*req), GFP_ATOMIC); | |
651 | ||
652 | if (unlikely(!req)) | |
c41f8cbd | 653 | return NULL; |
a4623c46 | 654 | |
c41f8cbd | 655 | memset(req, 0, sizeof(*req)); |
88f2a977 | 656 | req->pool = pool; |
c41f8cbd SS |
657 | return req; |
658 | } | |
659 | ||
a4623c46 | 660 | static struct fsf_qtcb *zfcp_qtcb_alloc(mempool_t *pool) |
c41f8cbd | 661 | { |
a4623c46 | 662 | struct fsf_qtcb *qtcb; |
c41f8cbd SS |
663 | |
664 | if (likely(pool)) | |
665 | qtcb = mempool_alloc(pool, GFP_ATOMIC); | |
666 | else | |
259afe2e | 667 | qtcb = kmem_cache_alloc(zfcp_fsf_qtcb_cache, GFP_ATOMIC); |
a4623c46 | 668 | |
c41f8cbd SS |
669 | if (unlikely(!qtcb)) |
670 | return NULL; | |
671 | ||
672 | memset(qtcb, 0, sizeof(*qtcb)); | |
a4623c46 | 673 | return qtcb; |
c41f8cbd SS |
674 | } |
675 | ||
564e1c86 | 676 | static struct zfcp_fsf_req *zfcp_fsf_req_create(struct zfcp_qdio *qdio, |
3ec90878 | 677 | u32 fsf_cmd, u8 sbtype, |
1674b405 | 678 | mempool_t *pool) |
1da177e4 | 679 | { |
564e1c86 | 680 | struct zfcp_adapter *adapter = qdio->adapter; |
a4623c46 | 681 | struct zfcp_fsf_req *req = zfcp_fsf_alloc(pool); |
1da177e4 | 682 | |
c41f8cbd | 683 | if (unlikely(!req)) |
1e9b1643 | 684 | return ERR_PTR(-ENOMEM); |
1da177e4 | 685 | |
c41f8cbd SS |
686 | if (adapter->req_no == 0) |
687 | adapter->req_no++; | |
1da177e4 | 688 | |
c41f8cbd SS |
689 | INIT_LIST_HEAD(&req->list); |
690 | init_timer(&req->timer); | |
058b8647 | 691 | init_completion(&req->completion); |
1da177e4 | 692 | |
c41f8cbd SS |
693 | req->adapter = adapter; |
694 | req->fsf_command = fsf_cmd; | |
52bfb558 | 695 | req->req_id = adapter->req_no; |
c41f8cbd | 696 | |
a4623c46 SS |
697 | if (likely(fsf_cmd != FSF_QTCB_UNSOLICITED_STATUS)) { |
698 | if (likely(pool)) | |
699 | req->qtcb = zfcp_qtcb_alloc(adapter->pool.qtcb_pool); | |
700 | else | |
701 | req->qtcb = zfcp_qtcb_alloc(NULL); | |
702 | ||
703 | if (unlikely(!req->qtcb)) { | |
704 | zfcp_fsf_req_free(req); | |
705 | return ERR_PTR(-ENOMEM); | |
706 | } | |
707 | ||
5bdecd22 | 708 | req->seq_no = adapter->fsf_req_seq_no; |
564e1c86 | 709 | req->qtcb->prefix.req_seq_no = adapter->fsf_req_seq_no; |
c41f8cbd SS |
710 | req->qtcb->prefix.req_id = req->req_id; |
711 | req->qtcb->prefix.ulp_info = 26; | |
712 | req->qtcb->prefix.qtcb_type = fsf_qtcb_type[req->fsf_command]; | |
713 | req->qtcb->prefix.qtcb_version = FSF_QTCB_CURRENT_VERSION; | |
714 | req->qtcb->header.req_handle = req->req_id; | |
715 | req->qtcb->header.fsf_command = req->fsf_command; | |
c41f8cbd SS |
716 | } |
717 | ||
1674b405 CS |
718 | zfcp_qdio_req_init(adapter->qdio, &req->qdio_req, req->req_id, sbtype, |
719 | req->qtcb, sizeof(struct fsf_qtcb)); | |
720 | ||
c41f8cbd | 721 | return req; |
1da177e4 LT |
722 | } |
723 | ||
c41f8cbd SS |
724 | static int zfcp_fsf_req_send(struct zfcp_fsf_req *req) |
725 | { | |
726 | struct zfcp_adapter *adapter = req->adapter; | |
564e1c86 | 727 | struct zfcp_qdio *qdio = adapter->qdio; |
b6bd2fb9 | 728 | int with_qtcb = (req->qtcb != NULL); |
e60a6d69 | 729 | int req_id = req->req_id; |
c41f8cbd | 730 | |
b6bd2fb9 | 731 | zfcp_reqlist_add(adapter->req_list, req); |
c41f8cbd | 732 | |
706eca49 | 733 | req->qdio_req.qdio_outb_usage = atomic_read(&qdio->req_q_free); |
1aae0560 | 734 | req->issued = get_tod_clock(); |
34c2b712 | 735 | if (zfcp_qdio_send(qdio, &req->qdio_req)) { |
c41f8cbd | 736 | del_timer(&req->timer); |
3765138a | 737 | /* lookup request again, list might have changed */ |
b6bd2fb9 | 738 | zfcp_reqlist_find_rm(adapter->req_list, req_id); |
ea4a3a6a | 739 | zfcp_erp_adapter_reopen(adapter, 0, "fsrs__1"); |
c41f8cbd SS |
740 | return -EIO; |
741 | } | |
742 | ||
743 | /* Don't increase for unsolicited status */ | |
135ea137 | 744 | if (with_qtcb) |
c41f8cbd | 745 | adapter->fsf_req_seq_no++; |
52bfb558 | 746 | adapter->req_no++; |
c41f8cbd SS |
747 | |
748 | return 0; | |
749 | } | |
750 | ||
751 | /** | |
752 | * zfcp_fsf_status_read - send status read request | |
753 | * @adapter: pointer to struct zfcp_adapter | |
754 | * @req_flags: request flags | |
755 | * Returns: 0 on success, ERROR otherwise | |
1da177e4 | 756 | */ |
564e1c86 | 757 | int zfcp_fsf_status_read(struct zfcp_qdio *qdio) |
1da177e4 | 758 | { |
564e1c86 | 759 | struct zfcp_adapter *adapter = qdio->adapter; |
c41f8cbd SS |
760 | struct zfcp_fsf_req *req; |
761 | struct fsf_status_read_buffer *sr_buf; | |
c7b279ae | 762 | struct page *page; |
c41f8cbd | 763 | int retval = -EIO; |
1da177e4 | 764 | |
44a24cb3 | 765 | spin_lock_irq(&qdio->req_q_lock); |
6b9e1520 | 766 | if (zfcp_qdio_sbal_get(qdio)) |
c41f8cbd SS |
767 | goto out; |
768 | ||
1674b405 | 769 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_UNSOLICITED_STATUS, 0, |
a4623c46 | 770 | adapter->pool.status_read_req); |
025270f0 | 771 | if (IS_ERR(req)) { |
c41f8cbd SS |
772 | retval = PTR_ERR(req); |
773 | goto out; | |
1da177e4 LT |
774 | } |
775 | ||
c7b279ae CS |
776 | page = mempool_alloc(adapter->pool.sr_data, GFP_ATOMIC); |
777 | if (!page) { | |
c41f8cbd SS |
778 | retval = -ENOMEM; |
779 | goto failed_buf; | |
780 | } | |
c7b279ae | 781 | sr_buf = page_address(page); |
c41f8cbd SS |
782 | memset(sr_buf, 0, sizeof(*sr_buf)); |
783 | req->data = sr_buf; | |
1674b405 CS |
784 | |
785 | zfcp_qdio_fill_next(qdio, &req->qdio_req, sr_buf, sizeof(*sr_buf)); | |
786 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); | |
059c97d0 | 787 | |
c41f8cbd SS |
788 | retval = zfcp_fsf_req_send(req); |
789 | if (retval) | |
790 | goto failed_req_send; | |
1da177e4 | 791 | |
c41f8cbd SS |
792 | goto out; |
793 | ||
794 | failed_req_send: | |
a54ca0f6 | 795 | req->data = NULL; |
c7b279ae | 796 | mempool_free(virt_to_page(sr_buf), adapter->pool.sr_data); |
c41f8cbd | 797 | failed_buf: |
a54ca0f6 | 798 | zfcp_dbf_hba_fsf_uss("fssr__1", req); |
c41f8cbd | 799 | zfcp_fsf_req_free(req); |
c41f8cbd | 800 | out: |
44a24cb3 | 801 | spin_unlock_irq(&qdio->req_q_lock); |
c41f8cbd SS |
802 | return retval; |
803 | } | |
804 | ||
805 | static void zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *req) | |
806 | { | |
b62a8d9b | 807 | struct scsi_device *sdev = req->data; |
d436de8c | 808 | struct zfcp_scsi_dev *zfcp_sdev; |
c41f8cbd SS |
809 | union fsf_status_qual *fsq = &req->qtcb->header.fsf_status_qual; |
810 | ||
811 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) | |
812 | return; | |
813 | ||
d436de8c MP |
814 | zfcp_sdev = sdev_to_zfcp(sdev); |
815 | ||
c41f8cbd | 816 | switch (req->qtcb->header.fsf_status) { |
1da177e4 | 817 | case FSF_PORT_HANDLE_NOT_VALID: |
c41f8cbd | 818 | if (fsq->word[0] == fsq->word[1]) { |
b62a8d9b | 819 | zfcp_erp_adapter_reopen(zfcp_sdev->port->adapter, 0, |
ea4a3a6a | 820 | "fsafch1"); |
c41f8cbd | 821 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 LT |
822 | } |
823 | break; | |
1da177e4 | 824 | case FSF_LUN_HANDLE_NOT_VALID: |
c41f8cbd | 825 | if (fsq->word[0] == fsq->word[1]) { |
ea4a3a6a | 826 | zfcp_erp_port_reopen(zfcp_sdev->port, 0, "fsafch2"); |
c41f8cbd | 827 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 LT |
828 | } |
829 | break; | |
1da177e4 | 830 | case FSF_FCP_COMMAND_DOES_NOT_EXIST: |
c41f8cbd | 831 | req->status |= ZFCP_STATUS_FSFREQ_ABORTNOTNEEDED; |
1da177e4 | 832 | break; |
1da177e4 | 833 | case FSF_PORT_BOXED: |
edaed859 SS |
834 | zfcp_erp_set_port_status(zfcp_sdev->port, |
835 | ZFCP_STATUS_COMMON_ACCESS_BOXED); | |
836 | zfcp_erp_port_reopen(zfcp_sdev->port, | |
ea4a3a6a | 837 | ZFCP_STATUS_COMMON_ERP_FAILED, "fsafch3"); |
4c571c65 | 838 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 | 839 | break; |
1da177e4 | 840 | case FSF_LUN_BOXED: |
edaed859 SS |
841 | zfcp_erp_set_lun_status(sdev, ZFCP_STATUS_COMMON_ACCESS_BOXED); |
842 | zfcp_erp_lun_reopen(sdev, ZFCP_STATUS_COMMON_ERP_FAILED, | |
ea4a3a6a | 843 | "fsafch4"); |
4c571c65 | 844 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 | 845 | break; |
1da177e4 | 846 | case FSF_ADAPTER_STATUS_AVAILABLE: |
c41f8cbd | 847 | switch (fsq->word[0]) { |
1da177e4 | 848 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: |
b62a8d9b | 849 | zfcp_fc_test_link(zfcp_sdev->port); |
dceab655 | 850 | /* fall through */ |
1da177e4 | 851 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
c41f8cbd | 852 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 | 853 | break; |
1da177e4 LT |
854 | } |
855 | break; | |
1da177e4 | 856 | case FSF_GOOD: |
c41f8cbd | 857 | req->status |= ZFCP_STATUS_FSFREQ_ABORTSUCCEEDED; |
1da177e4 | 858 | break; |
1da177e4 | 859 | } |
1da177e4 LT |
860 | } |
861 | ||
862 | /** | |
b62a8d9b CS |
863 | * zfcp_fsf_abort_fcp_cmnd - abort running SCSI command |
864 | * @scmnd: The SCSI command to abort | |
c41f8cbd | 865 | * Returns: pointer to struct zfcp_fsf_req |
1da177e4 | 866 | */ |
1da177e4 | 867 | |
b62a8d9b | 868 | struct zfcp_fsf_req *zfcp_fsf_abort_fcp_cmnd(struct scsi_cmnd *scmnd) |
1da177e4 | 869 | { |
c41f8cbd | 870 | struct zfcp_fsf_req *req = NULL; |
b62a8d9b CS |
871 | struct scsi_device *sdev = scmnd->device; |
872 | struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); | |
873 | struct zfcp_qdio *qdio = zfcp_sdev->port->adapter->qdio; | |
874 | unsigned long old_req_id = (unsigned long) scmnd->host_scribble; | |
8a36e453 | 875 | |
44a24cb3 | 876 | spin_lock_irq(&qdio->req_q_lock); |
6b9e1520 | 877 | if (zfcp_qdio_sbal_get(qdio)) |
c41f8cbd | 878 | goto out; |
564e1c86 | 879 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_ABORT_FCP_CMND, |
3ec90878 | 880 | SBAL_SFLAGS0_TYPE_READ, |
564e1c86 | 881 | qdio->adapter->pool.scsi_abort); |
633528c3 SS |
882 | if (IS_ERR(req)) { |
883 | req = NULL; | |
c41f8cbd | 884 | goto out; |
633528c3 | 885 | } |
2abbe866 | 886 | |
b62a8d9b | 887 | if (unlikely(!(atomic_read(&zfcp_sdev->status) & |
c41f8cbd SS |
888 | ZFCP_STATUS_COMMON_UNBLOCKED))) |
889 | goto out_error_free; | |
1da177e4 | 890 | |
1674b405 | 891 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
1da177e4 | 892 | |
6fbf25e8 | 893 | req->data = sdev; |
c41f8cbd | 894 | req->handler = zfcp_fsf_abort_fcp_command_handler; |
b62a8d9b CS |
895 | req->qtcb->header.lun_handle = zfcp_sdev->lun_handle; |
896 | req->qtcb->header.port_handle = zfcp_sdev->port->handle; | |
c41f8cbd SS |
897 | req->qtcb->bottom.support.req_handle = (u64) old_req_id; |
898 | ||
899 | zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT); | |
900 | if (!zfcp_fsf_req_send(req)) | |
901 | goto out; | |
902 | ||
903 | out_error_free: | |
904 | zfcp_fsf_req_free(req); | |
905 | req = NULL; | |
906 | out: | |
44a24cb3 | 907 | spin_unlock_irq(&qdio->req_q_lock); |
c41f8cbd | 908 | return req; |
1da177e4 LT |
909 | } |
910 | ||
c41f8cbd | 911 | static void zfcp_fsf_send_ct_handler(struct zfcp_fsf_req *req) |
1da177e4 | 912 | { |
c41f8cbd | 913 | struct zfcp_adapter *adapter = req->adapter; |
7c7dc196 | 914 | struct zfcp_fsf_ct_els *ct = req->data; |
c41f8cbd | 915 | struct fsf_qtcb_header *header = &req->qtcb->header; |
1da177e4 | 916 | |
7c7dc196 | 917 | ct->status = -EINVAL; |
1da177e4 | 918 | |
c41f8cbd | 919 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
1da177e4 LT |
920 | goto skip_fsfstatus; |
921 | ||
1da177e4 | 922 | switch (header->fsf_status) { |
1da177e4 | 923 | case FSF_GOOD: |
0100998d | 924 | zfcp_dbf_san_res("fsscth2", req); |
7c7dc196 | 925 | ct->status = 0; |
1da177e4 | 926 | break; |
1da177e4 | 927 | case FSF_SERVICE_CLASS_NOT_SUPPORTED: |
c41f8cbd | 928 | zfcp_fsf_class_not_supp(req); |
1da177e4 | 929 | break; |
1da177e4 | 930 | case FSF_ADAPTER_STATUS_AVAILABLE: |
1da177e4 LT |
931 | switch (header->fsf_status_qual.word[0]){ |
932 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: | |
1da177e4 | 933 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
c41f8cbd | 934 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 | 935 | break; |
1da177e4 LT |
936 | } |
937 | break; | |
1da177e4 | 938 | case FSF_ACCESS_DENIED: |
1da177e4 | 939 | break; |
1da177e4 | 940 | case FSF_PORT_BOXED: |
4c571c65 | 941 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 | 942 | break; |
c41f8cbd | 943 | case FSF_PORT_HANDLE_NOT_VALID: |
ea4a3a6a | 944 | zfcp_erp_adapter_reopen(adapter, 0, "fsscth1"); |
dceab655 | 945 | /* fall through */ |
c41f8cbd | 946 | case FSF_GENERIC_COMMAND_REJECTED: |
1da177e4 | 947 | case FSF_PAYLOAD_SIZE_MISMATCH: |
1da177e4 | 948 | case FSF_REQUEST_SIZE_TOO_LARGE: |
1da177e4 | 949 | case FSF_RESPONSE_SIZE_TOO_LARGE: |
1da177e4 | 950 | case FSF_SBAL_MISMATCH: |
c41f8cbd | 951 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 LT |
952 | break; |
953 | } | |
954 | ||
955 | skip_fsfstatus: | |
7c7dc196 CS |
956 | if (ct->handler) |
957 | ct->handler(ct->handler_data); | |
c41f8cbd | 958 | } |
1da177e4 | 959 | |
1674b405 CS |
960 | static void zfcp_fsf_setup_ct_els_unchained(struct zfcp_qdio *qdio, |
961 | struct zfcp_qdio_req *q_req, | |
426f6059 CS |
962 | struct scatterlist *sg_req, |
963 | struct scatterlist *sg_resp) | |
964 | { | |
1674b405 CS |
965 | zfcp_qdio_fill_next(qdio, q_req, sg_virt(sg_req), sg_req->length); |
966 | zfcp_qdio_fill_next(qdio, q_req, sg_virt(sg_resp), sg_resp->length); | |
967 | zfcp_qdio_set_sbale_last(qdio, q_req); | |
426f6059 CS |
968 | } |
969 | ||
39eb7e9a CS |
970 | static int zfcp_fsf_setup_ct_els_sbals(struct zfcp_fsf_req *req, |
971 | struct scatterlist *sg_req, | |
01b04759 | 972 | struct scatterlist *sg_resp) |
c41f8cbd | 973 | { |
42428f74 | 974 | struct zfcp_adapter *adapter = req->adapter; |
86a9668a SS |
975 | struct zfcp_qdio *qdio = adapter->qdio; |
976 | struct fsf_qtcb *qtcb = req->qtcb; | |
42428f74 | 977 | u32 feat = adapter->adapter_features; |
c41f8cbd | 978 | |
86a9668a SS |
979 | if (zfcp_adapter_multi_buffer_active(adapter)) { |
980 | if (zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, sg_req)) | |
981 | return -EIO; | |
982 | if (zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, sg_resp)) | |
983 | return -EIO; | |
39eb7e9a | 984 | |
86a9668a SS |
985 | zfcp_qdio_set_data_div(qdio, &req->qdio_req, |
986 | zfcp_qdio_sbale_count(sg_req)); | |
987 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); | |
988 | zfcp_qdio_set_scount(qdio, &req->qdio_req); | |
426f6059 CS |
989 | return 0; |
990 | } | |
991 | ||
992 | /* use single, unchained SBAL if it can hold the request */ | |
30b6777b | 993 | if (zfcp_qdio_sg_one_sbale(sg_req) && zfcp_qdio_sg_one_sbale(sg_resp)) { |
86a9668a | 994 | zfcp_fsf_setup_ct_els_unchained(qdio, &req->qdio_req, |
1674b405 | 995 | sg_req, sg_resp); |
39eb7e9a CS |
996 | return 0; |
997 | } | |
998 | ||
86a9668a SS |
999 | if (!(feat & FSF_FEATURE_ELS_CT_CHAINED_SBALS)) |
1000 | return -EOPNOTSUPP; | |
1001 | ||
1002 | if (zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, sg_req)) | |
9072df4d | 1003 | return -EIO; |
c41f8cbd | 1004 | |
86a9668a SS |
1005 | qtcb->bottom.support.req_buf_length = zfcp_qdio_real_bytes(sg_req); |
1006 | ||
1007 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); | |
1008 | zfcp_qdio_skip_to_last_sbale(qdio, &req->qdio_req); | |
1009 | ||
1010 | if (zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, sg_resp)) | |
9072df4d | 1011 | return -EIO; |
86a9668a SS |
1012 | |
1013 | qtcb->bottom.support.resp_buf_length = zfcp_qdio_real_bytes(sg_resp); | |
1014 | ||
1015 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); | |
98fc4d5c | 1016 | |
b1a58985 CS |
1017 | return 0; |
1018 | } | |
1019 | ||
1020 | static int zfcp_fsf_setup_ct_els(struct zfcp_fsf_req *req, | |
1021 | struct scatterlist *sg_req, | |
1022 | struct scatterlist *sg_resp, | |
01b04759 | 1023 | unsigned int timeout) |
b1a58985 CS |
1024 | { |
1025 | int ret; | |
1026 | ||
01b04759 | 1027 | ret = zfcp_fsf_setup_ct_els_sbals(req, sg_req, sg_resp); |
b1a58985 CS |
1028 | if (ret) |
1029 | return ret; | |
1030 | ||
98fc4d5c | 1031 | /* common settings for ct/gs and els requests */ |
51375ee8 SS |
1032 | if (timeout > 255) |
1033 | timeout = 255; /* max value accepted by hardware */ | |
98fc4d5c | 1034 | req->qtcb->bottom.support.service_class = FSF_CLASS_3; |
51375ee8 SS |
1035 | req->qtcb->bottom.support.timeout = timeout; |
1036 | zfcp_fsf_start_timer(req, (timeout + 10) * HZ); | |
c41f8cbd SS |
1037 | |
1038 | return 0; | |
1da177e4 LT |
1039 | } |
1040 | ||
1041 | /** | |
c41f8cbd SS |
1042 | * zfcp_fsf_send_ct - initiate a Generic Service request (FC-GS) |
1043 | * @ct: pointer to struct zfcp_send_ct with data for request | |
1044 | * @pool: if non-null this mempool is used to allocate struct zfcp_fsf_req | |
1da177e4 | 1045 | */ |
7c7dc196 | 1046 | int zfcp_fsf_send_ct(struct zfcp_fc_wka_port *wka_port, |
51375ee8 SS |
1047 | struct zfcp_fsf_ct_els *ct, mempool_t *pool, |
1048 | unsigned int timeout) | |
1da177e4 | 1049 | { |
564e1c86 | 1050 | struct zfcp_qdio *qdio = wka_port->adapter->qdio; |
c41f8cbd SS |
1051 | struct zfcp_fsf_req *req; |
1052 | int ret = -EIO; | |
1da177e4 | 1053 | |
44a24cb3 | 1054 | spin_lock_irq(&qdio->req_q_lock); |
6b9e1520 | 1055 | if (zfcp_qdio_sbal_get(qdio)) |
c41f8cbd | 1056 | goto out; |
1da177e4 | 1057 | |
1674b405 | 1058 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_SEND_GENERIC, |
3ec90878 | 1059 | SBAL_SFLAGS0_TYPE_WRITE_READ, pool); |
09a46c6e | 1060 | |
025270f0 | 1061 | if (IS_ERR(req)) { |
c41f8cbd SS |
1062 | ret = PTR_ERR(req); |
1063 | goto out; | |
3f0ca62a CS |
1064 | } |
1065 | ||
09a46c6e | 1066 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
01b04759 | 1067 | ret = zfcp_fsf_setup_ct_els(req, ct->req, ct->resp, timeout); |
553448f6 | 1068 | if (ret) |
1da177e4 | 1069 | goto failed_send; |
1da177e4 | 1070 | |
c41f8cbd | 1071 | req->handler = zfcp_fsf_send_ct_handler; |
5ab944f9 | 1072 | req->qtcb->header.port_handle = wka_port->handle; |
c41f8cbd SS |
1073 | req->data = ct; |
1074 | ||
2c55b750 | 1075 | zfcp_dbf_san_req("fssct_1", req, wka_port->d_id); |
1da177e4 | 1076 | |
c41f8cbd SS |
1077 | ret = zfcp_fsf_req_send(req); |
1078 | if (ret) | |
1079 | goto failed_send; | |
1da177e4 | 1080 | |
c41f8cbd | 1081 | goto out; |
1da177e4 | 1082 | |
c41f8cbd SS |
1083 | failed_send: |
1084 | zfcp_fsf_req_free(req); | |
c41f8cbd | 1085 | out: |
44a24cb3 | 1086 | spin_unlock_irq(&qdio->req_q_lock); |
c41f8cbd | 1087 | return ret; |
1da177e4 LT |
1088 | } |
1089 | ||
c41f8cbd | 1090 | static void zfcp_fsf_send_els_handler(struct zfcp_fsf_req *req) |
1da177e4 | 1091 | { |
7c7dc196 | 1092 | struct zfcp_fsf_ct_els *send_els = req->data; |
c41f8cbd SS |
1093 | struct zfcp_port *port = send_els->port; |
1094 | struct fsf_qtcb_header *header = &req->qtcb->header; | |
1da177e4 | 1095 | |
c41f8cbd | 1096 | send_els->status = -EINVAL; |
1da177e4 | 1097 | |
c41f8cbd | 1098 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
1da177e4 LT |
1099 | goto skip_fsfstatus; |
1100 | ||
1101 | switch (header->fsf_status) { | |
1da177e4 | 1102 | case FSF_GOOD: |
2c55b750 | 1103 | zfcp_dbf_san_res("fsselh1", req); |
c41f8cbd | 1104 | send_els->status = 0; |
1da177e4 | 1105 | break; |
1da177e4 | 1106 | case FSF_SERVICE_CLASS_NOT_SUPPORTED: |
c41f8cbd | 1107 | zfcp_fsf_class_not_supp(req); |
1da177e4 | 1108 | break; |
1da177e4 | 1109 | case FSF_ADAPTER_STATUS_AVAILABLE: |
1da177e4 LT |
1110 | switch (header->fsf_status_qual.word[0]){ |
1111 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: | |
1da177e4 | 1112 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
1da177e4 | 1113 | case FSF_SQ_RETRY_IF_POSSIBLE: |
c41f8cbd | 1114 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 | 1115 | break; |
1da177e4 LT |
1116 | } |
1117 | break; | |
1da177e4 | 1118 | case FSF_ELS_COMMAND_REJECTED: |
1da177e4 | 1119 | case FSF_PAYLOAD_SIZE_MISMATCH: |
1da177e4 | 1120 | case FSF_REQUEST_SIZE_TOO_LARGE: |
1da177e4 | 1121 | case FSF_RESPONSE_SIZE_TOO_LARGE: |
1da177e4 | 1122 | break; |
1da177e4 | 1123 | case FSF_ACCESS_DENIED: |
a1ca4831 CS |
1124 | if (port) { |
1125 | zfcp_cfdc_port_denied(port, &header->fsf_status_qual); | |
1126 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; | |
1127 | } | |
1da177e4 | 1128 | break; |
c41f8cbd | 1129 | case FSF_SBAL_MISMATCH: |
25985edc | 1130 | /* should never occur, avoided in zfcp_fsf_send_els */ |
c41f8cbd | 1131 | /* fall through */ |
1da177e4 | 1132 | default: |
c41f8cbd | 1133 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 LT |
1134 | break; |
1135 | } | |
1da177e4 | 1136 | skip_fsfstatus: |
aa551daf | 1137 | if (send_els->handler) |
1da177e4 | 1138 | send_els->handler(send_els->handler_data); |
c41f8cbd | 1139 | } |
1da177e4 | 1140 | |
c41f8cbd SS |
1141 | /** |
1142 | * zfcp_fsf_send_els - initiate an ELS command (FC-FS) | |
1143 | * @els: pointer to struct zfcp_send_els with data for the command | |
1144 | */ | |
7c7dc196 | 1145 | int zfcp_fsf_send_els(struct zfcp_adapter *adapter, u32 d_id, |
51375ee8 | 1146 | struct zfcp_fsf_ct_els *els, unsigned int timeout) |
c41f8cbd SS |
1147 | { |
1148 | struct zfcp_fsf_req *req; | |
7c7dc196 | 1149 | struct zfcp_qdio *qdio = adapter->qdio; |
c41f8cbd SS |
1150 | int ret = -EIO; |
1151 | ||
44a24cb3 | 1152 | spin_lock_irq(&qdio->req_q_lock); |
6b9e1520 | 1153 | if (zfcp_qdio_sbal_get(qdio)) |
c41f8cbd | 1154 | goto out; |
09a46c6e | 1155 | |
1674b405 | 1156 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_SEND_ELS, |
3ec90878 | 1157 | SBAL_SFLAGS0_TYPE_WRITE_READ, NULL); |
09a46c6e | 1158 | |
025270f0 | 1159 | if (IS_ERR(req)) { |
c41f8cbd SS |
1160 | ret = PTR_ERR(req); |
1161 | goto out; | |
1162 | } | |
1163 | ||
09a46c6e | 1164 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
01b04759 | 1165 | |
86a9668a SS |
1166 | if (!zfcp_adapter_multi_buffer_active(adapter)) |
1167 | zfcp_qdio_sbal_limit(qdio, &req->qdio_req, 2); | |
01b04759 SS |
1168 | |
1169 | ret = zfcp_fsf_setup_ct_els(req, els->req, els->resp, timeout); | |
44cc76f2 | 1170 | |
c41f8cbd SS |
1171 | if (ret) |
1172 | goto failed_send; | |
1173 | ||
7c7dc196 | 1174 | hton24(req->qtcb->bottom.support.d_id, d_id); |
c41f8cbd | 1175 | req->handler = zfcp_fsf_send_els_handler; |
c41f8cbd SS |
1176 | req->data = els; |
1177 | ||
2c55b750 | 1178 | zfcp_dbf_san_req("fssels1", req, d_id); |
c41f8cbd | 1179 | |
c41f8cbd SS |
1180 | ret = zfcp_fsf_req_send(req); |
1181 | if (ret) | |
1182 | goto failed_send; | |
1183 | ||
1184 | goto out; | |
1185 | ||
1186 | failed_send: | |
1187 | zfcp_fsf_req_free(req); | |
1188 | out: | |
44a24cb3 | 1189 | spin_unlock_irq(&qdio->req_q_lock); |
c41f8cbd | 1190 | return ret; |
1da177e4 LT |
1191 | } |
1192 | ||
c41f8cbd | 1193 | int zfcp_fsf_exchange_config_data(struct zfcp_erp_action *erp_action) |
1da177e4 | 1194 | { |
c41f8cbd | 1195 | struct zfcp_fsf_req *req; |
564e1c86 | 1196 | struct zfcp_qdio *qdio = erp_action->adapter->qdio; |
c41f8cbd SS |
1197 | int retval = -EIO; |
1198 | ||
44a24cb3 | 1199 | spin_lock_irq(&qdio->req_q_lock); |
6b9e1520 | 1200 | if (zfcp_qdio_sbal_get(qdio)) |
c41f8cbd | 1201 | goto out; |
09a46c6e | 1202 | |
564e1c86 | 1203 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_CONFIG_DATA, |
3ec90878 | 1204 | SBAL_SFLAGS0_TYPE_READ, |
564e1c86 | 1205 | qdio->adapter->pool.erp_req); |
09a46c6e | 1206 | |
025270f0 | 1207 | if (IS_ERR(req)) { |
c41f8cbd SS |
1208 | retval = PTR_ERR(req); |
1209 | goto out; | |
1da177e4 LT |
1210 | } |
1211 | ||
09a46c6e | 1212 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
1674b405 | 1213 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
1da177e4 | 1214 | |
c41f8cbd | 1215 | req->qtcb->bottom.config.feature_selection = |
aef4a983 MS |
1216 | FSF_FEATURE_CFDC | |
1217 | FSF_FEATURE_LUN_SHARING | | |
9eb69aff | 1218 | FSF_FEATURE_NOTIFICATION_LOST | |
aef4a983 | 1219 | FSF_FEATURE_UPDATE_ALERT; |
c41f8cbd SS |
1220 | req->erp_action = erp_action; |
1221 | req->handler = zfcp_fsf_exchange_config_data_handler; | |
e60a6d69 | 1222 | erp_action->fsf_req_id = req->req_id; |
1da177e4 | 1223 | |
287ac01a | 1224 | zfcp_fsf_start_erp_timer(req); |
c41f8cbd | 1225 | retval = zfcp_fsf_req_send(req); |
1da177e4 | 1226 | if (retval) { |
c41f8cbd | 1227 | zfcp_fsf_req_free(req); |
e60a6d69 | 1228 | erp_action->fsf_req_id = 0; |
1da177e4 | 1229 | } |
c41f8cbd | 1230 | out: |
44a24cb3 | 1231 | spin_unlock_irq(&qdio->req_q_lock); |
52ef11a7 SS |
1232 | return retval; |
1233 | } | |
1da177e4 | 1234 | |
564e1c86 | 1235 | int zfcp_fsf_exchange_config_data_sync(struct zfcp_qdio *qdio, |
c41f8cbd | 1236 | struct fsf_qtcb_bottom_config *data) |
52ef11a7 | 1237 | { |
c41f8cbd SS |
1238 | struct zfcp_fsf_req *req = NULL; |
1239 | int retval = -EIO; | |
1240 | ||
44a24cb3 | 1241 | spin_lock_irq(&qdio->req_q_lock); |
6b9e1520 | 1242 | if (zfcp_qdio_sbal_get(qdio)) |
ada81b74 | 1243 | goto out_unlock; |
c41f8cbd | 1244 | |
1674b405 | 1245 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_CONFIG_DATA, |
3ec90878 | 1246 | SBAL_SFLAGS0_TYPE_READ, NULL); |
09a46c6e | 1247 | |
025270f0 | 1248 | if (IS_ERR(req)) { |
c41f8cbd | 1249 | retval = PTR_ERR(req); |
ada81b74 | 1250 | goto out_unlock; |
52ef11a7 SS |
1251 | } |
1252 | ||
1674b405 | 1253 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
c41f8cbd | 1254 | req->handler = zfcp_fsf_exchange_config_data_handler; |
52ef11a7 | 1255 | |
c41f8cbd | 1256 | req->qtcb->bottom.config.feature_selection = |
52ef11a7 SS |
1257 | FSF_FEATURE_CFDC | |
1258 | FSF_FEATURE_LUN_SHARING | | |
1259 | FSF_FEATURE_NOTIFICATION_LOST | | |
1260 | FSF_FEATURE_UPDATE_ALERT; | |
1261 | ||
1262 | if (data) | |
c41f8cbd | 1263 | req->data = data; |
52ef11a7 | 1264 | |
c41f8cbd SS |
1265 | zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); |
1266 | retval = zfcp_fsf_req_send(req); | |
44a24cb3 | 1267 | spin_unlock_irq(&qdio->req_q_lock); |
553448f6 | 1268 | if (!retval) |
058b8647 | 1269 | wait_for_completion(&req->completion); |
52ef11a7 | 1270 | |
c41f8cbd | 1271 | zfcp_fsf_req_free(req); |
ada81b74 | 1272 | return retval; |
52ef11a7 | 1273 | |
ada81b74 | 1274 | out_unlock: |
44a24cb3 | 1275 | spin_unlock_irq(&qdio->req_q_lock); |
1da177e4 LT |
1276 | return retval; |
1277 | } | |
1278 | ||
1da177e4 LT |
1279 | /** |
1280 | * zfcp_fsf_exchange_port_data - request information about local port | |
aef4a983 | 1281 | * @erp_action: ERP action for the adapter for which port data is requested |
c41f8cbd | 1282 | * Returns: 0 on success, error otherwise |
1da177e4 | 1283 | */ |
c41f8cbd | 1284 | int zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action) |
1da177e4 | 1285 | { |
564e1c86 | 1286 | struct zfcp_qdio *qdio = erp_action->adapter->qdio; |
c41f8cbd | 1287 | struct zfcp_fsf_req *req; |
c41f8cbd | 1288 | int retval = -EIO; |
1da177e4 | 1289 | |
564e1c86 | 1290 | if (!(qdio->adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT)) |
52ef11a7 | 1291 | return -EOPNOTSUPP; |
1da177e4 | 1292 | |
44a24cb3 | 1293 | spin_lock_irq(&qdio->req_q_lock); |
6b9e1520 | 1294 | if (zfcp_qdio_sbal_get(qdio)) |
c41f8cbd | 1295 | goto out; |
09a46c6e | 1296 | |
564e1c86 | 1297 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_PORT_DATA, |
3ec90878 | 1298 | SBAL_SFLAGS0_TYPE_READ, |
564e1c86 | 1299 | qdio->adapter->pool.erp_req); |
09a46c6e | 1300 | |
025270f0 | 1301 | if (IS_ERR(req)) { |
c41f8cbd SS |
1302 | retval = PTR_ERR(req); |
1303 | goto out; | |
aef4a983 MS |
1304 | } |
1305 | ||
09a46c6e | 1306 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
1674b405 | 1307 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
1da177e4 | 1308 | |
c41f8cbd SS |
1309 | req->handler = zfcp_fsf_exchange_port_data_handler; |
1310 | req->erp_action = erp_action; | |
e60a6d69 | 1311 | erp_action->fsf_req_id = req->req_id; |
52ef11a7 | 1312 | |
287ac01a | 1313 | zfcp_fsf_start_erp_timer(req); |
c41f8cbd | 1314 | retval = zfcp_fsf_req_send(req); |
1da177e4 | 1315 | if (retval) { |
c41f8cbd | 1316 | zfcp_fsf_req_free(req); |
e60a6d69 | 1317 | erp_action->fsf_req_id = 0; |
52ef11a7 | 1318 | } |
c41f8cbd | 1319 | out: |
44a24cb3 | 1320 | spin_unlock_irq(&qdio->req_q_lock); |
52ef11a7 SS |
1321 | return retval; |
1322 | } | |
1323 | ||
52ef11a7 SS |
1324 | /** |
1325 | * zfcp_fsf_exchange_port_data_sync - request information about local port | |
564e1c86 | 1326 | * @qdio: pointer to struct zfcp_qdio |
c41f8cbd SS |
1327 | * @data: pointer to struct fsf_qtcb_bottom_port |
1328 | * Returns: 0 on success, error otherwise | |
52ef11a7 | 1329 | */ |
564e1c86 | 1330 | int zfcp_fsf_exchange_port_data_sync(struct zfcp_qdio *qdio, |
c41f8cbd | 1331 | struct fsf_qtcb_bottom_port *data) |
52ef11a7 | 1332 | { |
c41f8cbd SS |
1333 | struct zfcp_fsf_req *req = NULL; |
1334 | int retval = -EIO; | |
52ef11a7 | 1335 | |
564e1c86 | 1336 | if (!(qdio->adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT)) |
52ef11a7 | 1337 | return -EOPNOTSUPP; |
52ef11a7 | 1338 | |
44a24cb3 | 1339 | spin_lock_irq(&qdio->req_q_lock); |
6b9e1520 | 1340 | if (zfcp_qdio_sbal_get(qdio)) |
ada81b74 | 1341 | goto out_unlock; |
c41f8cbd | 1342 | |
1674b405 | 1343 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_PORT_DATA, |
3ec90878 | 1344 | SBAL_SFLAGS0_TYPE_READ, NULL); |
09a46c6e | 1345 | |
025270f0 | 1346 | if (IS_ERR(req)) { |
c41f8cbd | 1347 | retval = PTR_ERR(req); |
ada81b74 | 1348 | goto out_unlock; |
1da177e4 LT |
1349 | } |
1350 | ||
52ef11a7 | 1351 | if (data) |
c41f8cbd | 1352 | req->data = data; |
52ef11a7 | 1353 | |
1674b405 | 1354 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
52ef11a7 | 1355 | |
c41f8cbd SS |
1356 | req->handler = zfcp_fsf_exchange_port_data_handler; |
1357 | zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); | |
1358 | retval = zfcp_fsf_req_send(req); | |
44a24cb3 | 1359 | spin_unlock_irq(&qdio->req_q_lock); |
ada81b74 | 1360 | |
553448f6 | 1361 | if (!retval) |
058b8647 SS |
1362 | wait_for_completion(&req->completion); |
1363 | ||
c41f8cbd | 1364 | zfcp_fsf_req_free(req); |
1da177e4 | 1365 | |
1da177e4 | 1366 | return retval; |
ada81b74 CS |
1367 | |
1368 | out_unlock: | |
44a24cb3 | 1369 | spin_unlock_irq(&qdio->req_q_lock); |
ada81b74 | 1370 | return retval; |
1da177e4 LT |
1371 | } |
1372 | ||
c41f8cbd | 1373 | static void zfcp_fsf_open_port_handler(struct zfcp_fsf_req *req) |
1da177e4 | 1374 | { |
c41f8cbd SS |
1375 | struct zfcp_port *port = req->data; |
1376 | struct fsf_qtcb_header *header = &req->qtcb->header; | |
9d05ce2c | 1377 | struct fc_els_flogi *plogi; |
1da177e4 | 1378 | |
c41f8cbd | 1379 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
a17c5855 | 1380 | goto out; |
1da177e4 | 1381 | |
1da177e4 | 1382 | switch (header->fsf_status) { |
1da177e4 | 1383 | case FSF_PORT_ALREADY_OPEN: |
1da177e4 | 1384 | break; |
1da177e4 | 1385 | case FSF_ACCESS_DENIED: |
a1ca4831 CS |
1386 | zfcp_cfdc_port_denied(port, &header->fsf_status_qual); |
1387 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; | |
1da177e4 | 1388 | break; |
1da177e4 | 1389 | case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED: |
c41f8cbd | 1390 | dev_warn(&req->adapter->ccw_device->dev, |
ff3b24fa | 1391 | "Not enough FCP adapter resources to open " |
7ba58c9c SS |
1392 | "remote port 0x%016Lx\n", |
1393 | (unsigned long long)port->wwpn); | |
edaed859 SS |
1394 | zfcp_erp_set_port_status(port, |
1395 | ZFCP_STATUS_COMMON_ERP_FAILED); | |
c41f8cbd | 1396 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 | 1397 | break; |
1da177e4 | 1398 | case FSF_ADAPTER_STATUS_AVAILABLE: |
1da177e4 LT |
1399 | switch (header->fsf_status_qual.word[0]) { |
1400 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: | |
1da177e4 | 1401 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
1da177e4 | 1402 | case FSF_SQ_NO_RETRY_POSSIBLE: |
c41f8cbd | 1403 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 LT |
1404 | break; |
1405 | } | |
1406 | break; | |
1da177e4 | 1407 | case FSF_GOOD: |
1da177e4 | 1408 | port->handle = header->port_handle; |
1da177e4 LT |
1409 | atomic_set_mask(ZFCP_STATUS_COMMON_OPEN | |
1410 | ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); | |
d736a27b AH |
1411 | atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED | |
1412 | ZFCP_STATUS_COMMON_ACCESS_BOXED, | |
1413 | &port->status); | |
1da177e4 LT |
1414 | /* check whether D_ID has changed during open */ |
1415 | /* | |
1416 | * FIXME: This check is not airtight, as the FCP channel does | |
1417 | * not monitor closures of target port connections caused on | |
1418 | * the remote side. Thus, they might miss out on invalidating | |
1419 | * locally cached WWPNs (and other N_Port parameters) of gone | |
1420 | * target ports. So, our heroic attempt to make things safe | |
1421 | * could be undermined by 'open port' response data tagged with | |
1422 | * obsolete WWPNs. Another reason to monitor potential | |
1423 | * connection closures ourself at least (by interpreting | |
1424 | * incoming ELS' and unsolicited status). It just crosses my | |
1425 | * mind that one should be able to cross-check by means of | |
1426 | * another GID_PN straight after a port has been opened. | |
1427 | * Alternately, an ADISC/PDISC ELS should suffice, as well. | |
1428 | */ | |
9d05ce2c | 1429 | plogi = (struct fc_els_flogi *) req->qtcb->bottom.support.els; |
39eb7e9a | 1430 | if (req->qtcb->bottom.support.els1_length >= |
9d05ce2c | 1431 | FSF_PLOGI_MIN_LEN) |
c41f8cbd | 1432 | zfcp_fc_plogi_evaluate(port, plogi); |
1da177e4 | 1433 | break; |
1da177e4 | 1434 | case FSF_UNKNOWN_OP_SUBTYPE: |
c41f8cbd | 1435 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 LT |
1436 | break; |
1437 | } | |
a17c5855 MP |
1438 | |
1439 | out: | |
615f59e0 | 1440 | put_device(&port->dev); |
1da177e4 LT |
1441 | } |
1442 | ||
c41f8cbd SS |
1443 | /** |
1444 | * zfcp_fsf_open_port - create and send open port request | |
1445 | * @erp_action: pointer to struct zfcp_erp_action | |
1446 | * Returns: 0 on success, error otherwise | |
1da177e4 | 1447 | */ |
c41f8cbd | 1448 | int zfcp_fsf_open_port(struct zfcp_erp_action *erp_action) |
1da177e4 | 1449 | { |
564e1c86 | 1450 | struct zfcp_qdio *qdio = erp_action->adapter->qdio; |
a17c5855 | 1451 | struct zfcp_port *port = erp_action->port; |
564e1c86 | 1452 | struct zfcp_fsf_req *req; |
c41f8cbd SS |
1453 | int retval = -EIO; |
1454 | ||
44a24cb3 | 1455 | spin_lock_irq(&qdio->req_q_lock); |
6b9e1520 | 1456 | if (zfcp_qdio_sbal_get(qdio)) |
c41f8cbd SS |
1457 | goto out; |
1458 | ||
564e1c86 | 1459 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_PORT_WITH_DID, |
3ec90878 | 1460 | SBAL_SFLAGS0_TYPE_READ, |
564e1c86 | 1461 | qdio->adapter->pool.erp_req); |
09a46c6e | 1462 | |
025270f0 | 1463 | if (IS_ERR(req)) { |
c41f8cbd | 1464 | retval = PTR_ERR(req); |
1da177e4 | 1465 | goto out; |
c41f8cbd | 1466 | } |
1da177e4 | 1467 | |
09a46c6e | 1468 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
1674b405 | 1469 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
1da177e4 | 1470 | |
c41f8cbd | 1471 | req->handler = zfcp_fsf_open_port_handler; |
800c0cad | 1472 | hton24(req->qtcb->bottom.support.d_id, port->d_id); |
a17c5855 | 1473 | req->data = port; |
c41f8cbd | 1474 | req->erp_action = erp_action; |
e60a6d69 | 1475 | erp_action->fsf_req_id = req->req_id; |
615f59e0 | 1476 | get_device(&port->dev); |
c41f8cbd | 1477 | |
287ac01a | 1478 | zfcp_fsf_start_erp_timer(req); |
c41f8cbd | 1479 | retval = zfcp_fsf_req_send(req); |
1da177e4 | 1480 | if (retval) { |
c41f8cbd | 1481 | zfcp_fsf_req_free(req); |
e60a6d69 | 1482 | erp_action->fsf_req_id = 0; |
615f59e0 | 1483 | put_device(&port->dev); |
1da177e4 | 1484 | } |
c41f8cbd | 1485 | out: |
44a24cb3 | 1486 | spin_unlock_irq(&qdio->req_q_lock); |
1da177e4 LT |
1487 | return retval; |
1488 | } | |
1489 | ||
c41f8cbd | 1490 | static void zfcp_fsf_close_port_handler(struct zfcp_fsf_req *req) |
1da177e4 | 1491 | { |
c41f8cbd | 1492 | struct zfcp_port *port = req->data; |
1da177e4 | 1493 | |
c41f8cbd | 1494 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
44cc76f2 | 1495 | return; |
1da177e4 | 1496 | |
c41f8cbd | 1497 | switch (req->qtcb->header.fsf_status) { |
1da177e4 | 1498 | case FSF_PORT_HANDLE_NOT_VALID: |
ea4a3a6a | 1499 | zfcp_erp_adapter_reopen(port->adapter, 0, "fscph_1"); |
c41f8cbd | 1500 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 | 1501 | break; |
1da177e4 | 1502 | case FSF_ADAPTER_STATUS_AVAILABLE: |
1da177e4 | 1503 | break; |
1da177e4 | 1504 | case FSF_GOOD: |
edaed859 | 1505 | zfcp_erp_clear_port_status(port, ZFCP_STATUS_COMMON_OPEN); |
1da177e4 | 1506 | break; |
1da177e4 | 1507 | } |
1da177e4 LT |
1508 | } |
1509 | ||
c41f8cbd SS |
1510 | /** |
1511 | * zfcp_fsf_close_port - create and send close port request | |
1512 | * @erp_action: pointer to struct zfcp_erp_action | |
1513 | * Returns: 0 on success, error otherwise | |
1da177e4 | 1514 | */ |
c41f8cbd | 1515 | int zfcp_fsf_close_port(struct zfcp_erp_action *erp_action) |
1da177e4 | 1516 | { |
564e1c86 | 1517 | struct zfcp_qdio *qdio = erp_action->adapter->qdio; |
c41f8cbd SS |
1518 | struct zfcp_fsf_req *req; |
1519 | int retval = -EIO; | |
1520 | ||
44a24cb3 | 1521 | spin_lock_irq(&qdio->req_q_lock); |
6b9e1520 | 1522 | if (zfcp_qdio_sbal_get(qdio)) |
c41f8cbd SS |
1523 | goto out; |
1524 | ||
564e1c86 | 1525 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PORT, |
3ec90878 | 1526 | SBAL_SFLAGS0_TYPE_READ, |
564e1c86 | 1527 | qdio->adapter->pool.erp_req); |
09a46c6e | 1528 | |
025270f0 | 1529 | if (IS_ERR(req)) { |
c41f8cbd | 1530 | retval = PTR_ERR(req); |
1da177e4 | 1531 | goto out; |
c41f8cbd | 1532 | } |
1da177e4 | 1533 | |
09a46c6e | 1534 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
1674b405 | 1535 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
1da177e4 | 1536 | |
c41f8cbd SS |
1537 | req->handler = zfcp_fsf_close_port_handler; |
1538 | req->data = erp_action->port; | |
1539 | req->erp_action = erp_action; | |
1540 | req->qtcb->header.port_handle = erp_action->port->handle; | |
e60a6d69 | 1541 | erp_action->fsf_req_id = req->req_id; |
c41f8cbd | 1542 | |
287ac01a | 1543 | zfcp_fsf_start_erp_timer(req); |
c41f8cbd | 1544 | retval = zfcp_fsf_req_send(req); |
1da177e4 | 1545 | if (retval) { |
c41f8cbd | 1546 | zfcp_fsf_req_free(req); |
e60a6d69 | 1547 | erp_action->fsf_req_id = 0; |
1da177e4 | 1548 | } |
c41f8cbd | 1549 | out: |
44a24cb3 | 1550 | spin_unlock_irq(&qdio->req_q_lock); |
1da177e4 LT |
1551 | return retval; |
1552 | } | |
1553 | ||
5ab944f9 SS |
1554 | static void zfcp_fsf_open_wka_port_handler(struct zfcp_fsf_req *req) |
1555 | { | |
bd0072ec | 1556 | struct zfcp_fc_wka_port *wka_port = req->data; |
5ab944f9 SS |
1557 | struct fsf_qtcb_header *header = &req->qtcb->header; |
1558 | ||
1559 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) { | |
bd0072ec | 1560 | wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; |
5ab944f9 SS |
1561 | goto out; |
1562 | } | |
1563 | ||
1564 | switch (header->fsf_status) { | |
1565 | case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED: | |
1566 | dev_warn(&req->adapter->ccw_device->dev, | |
1567 | "Opening WKA port 0x%x failed\n", wka_port->d_id); | |
dceab655 | 1568 | /* fall through */ |
5ab944f9 SS |
1569 | case FSF_ADAPTER_STATUS_AVAILABLE: |
1570 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; | |
dceab655 | 1571 | /* fall through */ |
5ab944f9 | 1572 | case FSF_ACCESS_DENIED: |
bd0072ec | 1573 | wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; |
5ab944f9 | 1574 | break; |
5ab944f9 SS |
1575 | case FSF_GOOD: |
1576 | wka_port->handle = header->port_handle; | |
27f492cc SS |
1577 | /* fall through */ |
1578 | case FSF_PORT_ALREADY_OPEN: | |
bd0072ec | 1579 | wka_port->status = ZFCP_FC_WKA_PORT_ONLINE; |
5ab944f9 SS |
1580 | } |
1581 | out: | |
1582 | wake_up(&wka_port->completion_wq); | |
1583 | } | |
1584 | ||
1585 | /** | |
1586 | * zfcp_fsf_open_wka_port - create and send open wka-port request | |
bd0072ec | 1587 | * @wka_port: pointer to struct zfcp_fc_wka_port |
5ab944f9 SS |
1588 | * Returns: 0 on success, error otherwise |
1589 | */ | |
bd0072ec | 1590 | int zfcp_fsf_open_wka_port(struct zfcp_fc_wka_port *wka_port) |
5ab944f9 | 1591 | { |
564e1c86 | 1592 | struct zfcp_qdio *qdio = wka_port->adapter->qdio; |
5ab944f9 SS |
1593 | struct zfcp_fsf_req *req; |
1594 | int retval = -EIO; | |
1595 | ||
44a24cb3 | 1596 | spin_lock_irq(&qdio->req_q_lock); |
6b9e1520 | 1597 | if (zfcp_qdio_sbal_get(qdio)) |
5ab944f9 SS |
1598 | goto out; |
1599 | ||
564e1c86 | 1600 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_PORT_WITH_DID, |
3ec90878 | 1601 | SBAL_SFLAGS0_TYPE_READ, |
564e1c86 | 1602 | qdio->adapter->pool.erp_req); |
09a46c6e | 1603 | |
4e7d7af4 | 1604 | if (IS_ERR(req)) { |
5ab944f9 SS |
1605 | retval = PTR_ERR(req); |
1606 | goto out; | |
1607 | } | |
1608 | ||
09a46c6e | 1609 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
1674b405 | 1610 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
5ab944f9 SS |
1611 | |
1612 | req->handler = zfcp_fsf_open_wka_port_handler; | |
800c0cad | 1613 | hton24(req->qtcb->bottom.support.d_id, wka_port->d_id); |
5ab944f9 SS |
1614 | req->data = wka_port; |
1615 | ||
1616 | zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); | |
1617 | retval = zfcp_fsf_req_send(req); | |
1618 | if (retval) | |
1619 | zfcp_fsf_req_free(req); | |
1620 | out: | |
44a24cb3 | 1621 | spin_unlock_irq(&qdio->req_q_lock); |
5ab944f9 SS |
1622 | return retval; |
1623 | } | |
1624 | ||
1625 | static void zfcp_fsf_close_wka_port_handler(struct zfcp_fsf_req *req) | |
1626 | { | |
bd0072ec | 1627 | struct zfcp_fc_wka_port *wka_port = req->data; |
5ab944f9 SS |
1628 | |
1629 | if (req->qtcb->header.fsf_status == FSF_PORT_HANDLE_NOT_VALID) { | |
1630 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; | |
ea4a3a6a | 1631 | zfcp_erp_adapter_reopen(wka_port->adapter, 0, "fscwph1"); |
5ab944f9 SS |
1632 | } |
1633 | ||
bd0072ec | 1634 | wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; |
5ab944f9 SS |
1635 | wake_up(&wka_port->completion_wq); |
1636 | } | |
1637 | ||
1638 | /** | |
1639 | * zfcp_fsf_close_wka_port - create and send close wka port request | |
bd0072ec | 1640 | * @wka_port: WKA port to open |
5ab944f9 SS |
1641 | * Returns: 0 on success, error otherwise |
1642 | */ | |
bd0072ec | 1643 | int zfcp_fsf_close_wka_port(struct zfcp_fc_wka_port *wka_port) |
5ab944f9 | 1644 | { |
564e1c86 | 1645 | struct zfcp_qdio *qdio = wka_port->adapter->qdio; |
5ab944f9 SS |
1646 | struct zfcp_fsf_req *req; |
1647 | int retval = -EIO; | |
1648 | ||
44a24cb3 | 1649 | spin_lock_irq(&qdio->req_q_lock); |
6b9e1520 | 1650 | if (zfcp_qdio_sbal_get(qdio)) |
5ab944f9 SS |
1651 | goto out; |
1652 | ||
564e1c86 | 1653 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PORT, |
3ec90878 | 1654 | SBAL_SFLAGS0_TYPE_READ, |
564e1c86 | 1655 | qdio->adapter->pool.erp_req); |
09a46c6e | 1656 | |
4e7d7af4 | 1657 | if (IS_ERR(req)) { |
5ab944f9 SS |
1658 | retval = PTR_ERR(req); |
1659 | goto out; | |
1660 | } | |
1661 | ||
09a46c6e | 1662 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
1674b405 | 1663 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
5ab944f9 SS |
1664 | |
1665 | req->handler = zfcp_fsf_close_wka_port_handler; | |
1666 | req->data = wka_port; | |
1667 | req->qtcb->header.port_handle = wka_port->handle; | |
1668 | ||
1669 | zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); | |
1670 | retval = zfcp_fsf_req_send(req); | |
1671 | if (retval) | |
1672 | zfcp_fsf_req_free(req); | |
1673 | out: | |
44a24cb3 | 1674 | spin_unlock_irq(&qdio->req_q_lock); |
5ab944f9 SS |
1675 | return retval; |
1676 | } | |
1677 | ||
c41f8cbd | 1678 | static void zfcp_fsf_close_physical_port_handler(struct zfcp_fsf_req *req) |
1da177e4 | 1679 | { |
c41f8cbd SS |
1680 | struct zfcp_port *port = req->data; |
1681 | struct fsf_qtcb_header *header = &req->qtcb->header; | |
b62a8d9b | 1682 | struct scsi_device *sdev; |
1da177e4 | 1683 | |
c41f8cbd | 1684 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
a5b11dda | 1685 | return; |
1da177e4 | 1686 | |
1da177e4 | 1687 | switch (header->fsf_status) { |
1da177e4 | 1688 | case FSF_PORT_HANDLE_NOT_VALID: |
ea4a3a6a | 1689 | zfcp_erp_adapter_reopen(port->adapter, 0, "fscpph1"); |
c41f8cbd | 1690 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 | 1691 | break; |
1da177e4 | 1692 | case FSF_ACCESS_DENIED: |
a1ca4831 | 1693 | zfcp_cfdc_port_denied(port, &header->fsf_status_qual); |
1da177e4 | 1694 | break; |
1da177e4 | 1695 | case FSF_PORT_BOXED: |
5c815d15 CS |
1696 | /* can't use generic zfcp_erp_modify_port_status because |
1697 | * ZFCP_STATUS_COMMON_OPEN must not be reset for the port */ | |
1698 | atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); | |
b62a8d9b CS |
1699 | shost_for_each_device(sdev, port->adapter->scsi_host) |
1700 | if (sdev_to_zfcp(sdev)->port == port) | |
1701 | atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, | |
1702 | &sdev_to_zfcp(sdev)->status); | |
edaed859 SS |
1703 | zfcp_erp_set_port_status(port, ZFCP_STATUS_COMMON_ACCESS_BOXED); |
1704 | zfcp_erp_port_reopen(port, ZFCP_STATUS_COMMON_ERP_FAILED, | |
ea4a3a6a | 1705 | "fscpph2"); |
4c571c65 | 1706 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 | 1707 | break; |
1da177e4 | 1708 | case FSF_ADAPTER_STATUS_AVAILABLE: |
1da177e4 LT |
1709 | switch (header->fsf_status_qual.word[0]) { |
1710 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: | |
c41f8cbd | 1711 | /* fall through */ |
1da177e4 | 1712 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
c41f8cbd | 1713 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 | 1714 | break; |
1da177e4 LT |
1715 | } |
1716 | break; | |
1da177e4 | 1717 | case FSF_GOOD: |
1da177e4 LT |
1718 | /* can't use generic zfcp_erp_modify_port_status because |
1719 | * ZFCP_STATUS_COMMON_OPEN must not be reset for the port | |
1720 | */ | |
1721 | atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); | |
b62a8d9b CS |
1722 | shost_for_each_device(sdev, port->adapter->scsi_host) |
1723 | if (sdev_to_zfcp(sdev)->port == port) | |
1724 | atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, | |
1725 | &sdev_to_zfcp(sdev)->status); | |
1da177e4 | 1726 | break; |
1da177e4 | 1727 | } |
1da177e4 LT |
1728 | } |
1729 | ||
c41f8cbd SS |
1730 | /** |
1731 | * zfcp_fsf_close_physical_port - close physical port | |
1732 | * @erp_action: pointer to struct zfcp_erp_action | |
1733 | * Returns: 0 on success | |
1da177e4 | 1734 | */ |
c41f8cbd | 1735 | int zfcp_fsf_close_physical_port(struct zfcp_erp_action *erp_action) |
1da177e4 | 1736 | { |
564e1c86 | 1737 | struct zfcp_qdio *qdio = erp_action->adapter->qdio; |
c41f8cbd SS |
1738 | struct zfcp_fsf_req *req; |
1739 | int retval = -EIO; | |
1740 | ||
44a24cb3 | 1741 | spin_lock_irq(&qdio->req_q_lock); |
6b9e1520 | 1742 | if (zfcp_qdio_sbal_get(qdio)) |
1da177e4 | 1743 | goto out; |
1da177e4 | 1744 | |
564e1c86 | 1745 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PHYSICAL_PORT, |
3ec90878 | 1746 | SBAL_SFLAGS0_TYPE_READ, |
564e1c86 | 1747 | qdio->adapter->pool.erp_req); |
09a46c6e | 1748 | |
025270f0 | 1749 | if (IS_ERR(req)) { |
c41f8cbd SS |
1750 | retval = PTR_ERR(req); |
1751 | goto out; | |
1752 | } | |
1da177e4 | 1753 | |
09a46c6e | 1754 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
1674b405 | 1755 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
1da177e4 | 1756 | |
c41f8cbd SS |
1757 | req->data = erp_action->port; |
1758 | req->qtcb->header.port_handle = erp_action->port->handle; | |
1759 | req->erp_action = erp_action; | |
1760 | req->handler = zfcp_fsf_close_physical_port_handler; | |
e60a6d69 | 1761 | erp_action->fsf_req_id = req->req_id; |
c41f8cbd | 1762 | |
287ac01a | 1763 | zfcp_fsf_start_erp_timer(req); |
c41f8cbd | 1764 | retval = zfcp_fsf_req_send(req); |
1da177e4 | 1765 | if (retval) { |
c41f8cbd | 1766 | zfcp_fsf_req_free(req); |
e60a6d69 | 1767 | erp_action->fsf_req_id = 0; |
1da177e4 | 1768 | } |
c41f8cbd | 1769 | out: |
44a24cb3 | 1770 | spin_unlock_irq(&qdio->req_q_lock); |
1da177e4 LT |
1771 | return retval; |
1772 | } | |
1773 | ||
b62a8d9b | 1774 | static void zfcp_fsf_open_lun_handler(struct zfcp_fsf_req *req) |
1da177e4 | 1775 | { |
c41f8cbd | 1776 | struct zfcp_adapter *adapter = req->adapter; |
b62a8d9b | 1777 | struct scsi_device *sdev = req->data; |
d436de8c | 1778 | struct zfcp_scsi_dev *zfcp_sdev; |
c41f8cbd SS |
1779 | struct fsf_qtcb_header *header = &req->qtcb->header; |
1780 | struct fsf_qtcb_bottom_support *bottom = &req->qtcb->bottom.support; | |
1da177e4 | 1781 | |
c41f8cbd | 1782 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
44cc76f2 | 1783 | return; |
1da177e4 | 1784 | |
d436de8c MP |
1785 | zfcp_sdev = sdev_to_zfcp(sdev); |
1786 | ||
1da177e4 | 1787 | atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED | |
b64ddf96 | 1788 | ZFCP_STATUS_COMMON_ACCESS_BOXED | |
b62a8d9b CS |
1789 | ZFCP_STATUS_LUN_SHARED | |
1790 | ZFCP_STATUS_LUN_READONLY, | |
1791 | &zfcp_sdev->status); | |
1da177e4 | 1792 | |
1da177e4 LT |
1793 | switch (header->fsf_status) { |
1794 | ||
1795 | case FSF_PORT_HANDLE_NOT_VALID: | |
ea4a3a6a | 1796 | zfcp_erp_adapter_reopen(adapter, 0, "fsouh_1"); |
c41f8cbd | 1797 | /* fall through */ |
1da177e4 | 1798 | case FSF_LUN_ALREADY_OPEN: |
1da177e4 | 1799 | break; |
1da177e4 | 1800 | case FSF_ACCESS_DENIED: |
a1ca4831 CS |
1801 | zfcp_cfdc_lun_denied(sdev, &header->fsf_status_qual); |
1802 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; | |
1da177e4 | 1803 | break; |
1da177e4 | 1804 | case FSF_PORT_BOXED: |
edaed859 SS |
1805 | zfcp_erp_set_port_status(zfcp_sdev->port, |
1806 | ZFCP_STATUS_COMMON_ACCESS_BOXED); | |
1807 | zfcp_erp_port_reopen(zfcp_sdev->port, | |
ea4a3a6a | 1808 | ZFCP_STATUS_COMMON_ERP_FAILED, "fsouh_2"); |
4c571c65 | 1809 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 | 1810 | break; |
1da177e4 | 1811 | case FSF_LUN_SHARING_VIOLATION: |
a1ca4831 | 1812 | zfcp_cfdc_lun_shrng_vltn(sdev, &header->fsf_status_qual); |
c41f8cbd | 1813 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 | 1814 | break; |
1da177e4 | 1815 | case FSF_MAXIMUM_NUMBER_OF_LUNS_EXCEEDED: |
c41f8cbd | 1816 | dev_warn(&adapter->ccw_device->dev, |
ff3b24fa CS |
1817 | "No handle is available for LUN " |
1818 | "0x%016Lx on port 0x%016Lx\n", | |
b62a8d9b CS |
1819 | (unsigned long long)zfcp_scsi_dev_lun(sdev), |
1820 | (unsigned long long)zfcp_sdev->port->wwpn); | |
edaed859 | 1821 | zfcp_erp_set_lun_status(sdev, ZFCP_STATUS_COMMON_ERP_FAILED); |
c41f8cbd SS |
1822 | /* fall through */ |
1823 | case FSF_INVALID_COMMAND_OPTION: | |
1824 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; | |
1da177e4 | 1825 | break; |
1da177e4 | 1826 | case FSF_ADAPTER_STATUS_AVAILABLE: |
1da177e4 LT |
1827 | switch (header->fsf_status_qual.word[0]) { |
1828 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: | |
b62a8d9b | 1829 | zfcp_fc_test_link(zfcp_sdev->port); |
c41f8cbd | 1830 | /* fall through */ |
1da177e4 | 1831 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
c41f8cbd | 1832 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 | 1833 | break; |
1da177e4 LT |
1834 | } |
1835 | break; | |
1836 | ||
1da177e4 | 1837 | case FSF_GOOD: |
b62a8d9b CS |
1838 | zfcp_sdev->lun_handle = header->lun_handle; |
1839 | atomic_set_mask(ZFCP_STATUS_COMMON_OPEN, &zfcp_sdev->status); | |
a1ca4831 | 1840 | zfcp_cfdc_open_lun_eval(sdev, bottom); |
1da177e4 | 1841 | break; |
1da177e4 | 1842 | } |
1da177e4 LT |
1843 | } |
1844 | ||
c41f8cbd | 1845 | /** |
b62a8d9b | 1846 | * zfcp_fsf_open_lun - open LUN |
c41f8cbd SS |
1847 | * @erp_action: pointer to struct zfcp_erp_action |
1848 | * Returns: 0 on success, error otherwise | |
1da177e4 | 1849 | */ |
b62a8d9b | 1850 | int zfcp_fsf_open_lun(struct zfcp_erp_action *erp_action) |
1da177e4 | 1851 | { |
c41f8cbd | 1852 | struct zfcp_adapter *adapter = erp_action->adapter; |
564e1c86 | 1853 | struct zfcp_qdio *qdio = adapter->qdio; |
c41f8cbd SS |
1854 | struct zfcp_fsf_req *req; |
1855 | int retval = -EIO; | |
1856 | ||
44a24cb3 | 1857 | spin_lock_irq(&qdio->req_q_lock); |
6b9e1520 | 1858 | if (zfcp_qdio_sbal_get(qdio)) |
1da177e4 | 1859 | goto out; |
1da177e4 | 1860 | |
564e1c86 | 1861 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_LUN, |
3ec90878 | 1862 | SBAL_SFLAGS0_TYPE_READ, |
a4623c46 | 1863 | adapter->pool.erp_req); |
09a46c6e | 1864 | |
025270f0 | 1865 | if (IS_ERR(req)) { |
c41f8cbd SS |
1866 | retval = PTR_ERR(req); |
1867 | goto out; | |
1868 | } | |
1869 | ||
09a46c6e | 1870 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
1674b405 | 1871 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
1da177e4 | 1872 | |
c41f8cbd | 1873 | req->qtcb->header.port_handle = erp_action->port->handle; |
b62a8d9b CS |
1874 | req->qtcb->bottom.support.fcp_lun = zfcp_scsi_dev_lun(erp_action->sdev); |
1875 | req->handler = zfcp_fsf_open_lun_handler; | |
1876 | req->data = erp_action->sdev; | |
c41f8cbd | 1877 | req->erp_action = erp_action; |
e60a6d69 | 1878 | erp_action->fsf_req_id = req->req_id; |
c41f8cbd SS |
1879 | |
1880 | if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE)) | |
1881 | req->qtcb->bottom.support.option = FSF_OPEN_LUN_SUPPRESS_BOXING; | |
1882 | ||
287ac01a | 1883 | zfcp_fsf_start_erp_timer(req); |
c41f8cbd | 1884 | retval = zfcp_fsf_req_send(req); |
1da177e4 | 1885 | if (retval) { |
c41f8cbd | 1886 | zfcp_fsf_req_free(req); |
e60a6d69 | 1887 | erp_action->fsf_req_id = 0; |
1da177e4 | 1888 | } |
c41f8cbd | 1889 | out: |
44a24cb3 | 1890 | spin_unlock_irq(&qdio->req_q_lock); |
1da177e4 LT |
1891 | return retval; |
1892 | } | |
1893 | ||
b62a8d9b | 1894 | static void zfcp_fsf_close_lun_handler(struct zfcp_fsf_req *req) |
1da177e4 | 1895 | { |
b62a8d9b | 1896 | struct scsi_device *sdev = req->data; |
d436de8c | 1897 | struct zfcp_scsi_dev *zfcp_sdev; |
1da177e4 | 1898 | |
c41f8cbd | 1899 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
44cc76f2 | 1900 | return; |
1da177e4 | 1901 | |
d436de8c MP |
1902 | zfcp_sdev = sdev_to_zfcp(sdev); |
1903 | ||
c41f8cbd | 1904 | switch (req->qtcb->header.fsf_status) { |
1da177e4 | 1905 | case FSF_PORT_HANDLE_NOT_VALID: |
ea4a3a6a | 1906 | zfcp_erp_adapter_reopen(zfcp_sdev->port->adapter, 0, "fscuh_1"); |
c41f8cbd | 1907 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 | 1908 | break; |
1da177e4 | 1909 | case FSF_LUN_HANDLE_NOT_VALID: |
ea4a3a6a | 1910 | zfcp_erp_port_reopen(zfcp_sdev->port, 0, "fscuh_2"); |
c41f8cbd | 1911 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 | 1912 | break; |
1da177e4 | 1913 | case FSF_PORT_BOXED: |
edaed859 SS |
1914 | zfcp_erp_set_port_status(zfcp_sdev->port, |
1915 | ZFCP_STATUS_COMMON_ACCESS_BOXED); | |
1916 | zfcp_erp_port_reopen(zfcp_sdev->port, | |
ea4a3a6a | 1917 | ZFCP_STATUS_COMMON_ERP_FAILED, "fscuh_3"); |
4c571c65 | 1918 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 | 1919 | break; |
1da177e4 | 1920 | case FSF_ADAPTER_STATUS_AVAILABLE: |
c41f8cbd | 1921 | switch (req->qtcb->header.fsf_status_qual.word[0]) { |
1da177e4 | 1922 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: |
b62a8d9b | 1923 | zfcp_fc_test_link(zfcp_sdev->port); |
c41f8cbd | 1924 | /* fall through */ |
1da177e4 | 1925 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
c41f8cbd | 1926 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 LT |
1927 | break; |
1928 | } | |
1929 | break; | |
1da177e4 | 1930 | case FSF_GOOD: |
b62a8d9b | 1931 | atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, &zfcp_sdev->status); |
1da177e4 | 1932 | break; |
1da177e4 | 1933 | } |
1da177e4 LT |
1934 | } |
1935 | ||
1936 | /** | |
b62a8d9b CS |
1937 | * zfcp_fsf_close_LUN - close LUN |
1938 | * @erp_action: pointer to erp_action triggering the "close LUN" | |
c41f8cbd | 1939 | * Returns: 0 on success, error otherwise |
1da177e4 | 1940 | */ |
b62a8d9b | 1941 | int zfcp_fsf_close_lun(struct zfcp_erp_action *erp_action) |
1da177e4 | 1942 | { |
564e1c86 | 1943 | struct zfcp_qdio *qdio = erp_action->adapter->qdio; |
b62a8d9b | 1944 | struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(erp_action->sdev); |
c41f8cbd SS |
1945 | struct zfcp_fsf_req *req; |
1946 | int retval = -EIO; | |
1da177e4 | 1947 | |
44a24cb3 | 1948 | spin_lock_irq(&qdio->req_q_lock); |
6b9e1520 | 1949 | if (zfcp_qdio_sbal_get(qdio)) |
1da177e4 | 1950 | goto out; |
09a46c6e | 1951 | |
564e1c86 | 1952 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_LUN, |
3ec90878 | 1953 | SBAL_SFLAGS0_TYPE_READ, |
564e1c86 | 1954 | qdio->adapter->pool.erp_req); |
09a46c6e | 1955 | |
025270f0 | 1956 | if (IS_ERR(req)) { |
c41f8cbd SS |
1957 | retval = PTR_ERR(req); |
1958 | goto out; | |
1959 | } | |
1da177e4 | 1960 | |
09a46c6e | 1961 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
1674b405 | 1962 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
1da177e4 | 1963 | |
c41f8cbd | 1964 | req->qtcb->header.port_handle = erp_action->port->handle; |
b62a8d9b CS |
1965 | req->qtcb->header.lun_handle = zfcp_sdev->lun_handle; |
1966 | req->handler = zfcp_fsf_close_lun_handler; | |
1967 | req->data = erp_action->sdev; | |
c41f8cbd | 1968 | req->erp_action = erp_action; |
e60a6d69 | 1969 | erp_action->fsf_req_id = req->req_id; |
fdf23452 | 1970 | |
287ac01a | 1971 | zfcp_fsf_start_erp_timer(req); |
c41f8cbd SS |
1972 | retval = zfcp_fsf_req_send(req); |
1973 | if (retval) { | |
1974 | zfcp_fsf_req_free(req); | |
e60a6d69 | 1975 | erp_action->fsf_req_id = 0; |
c41f8cbd SS |
1976 | } |
1977 | out: | |
44a24cb3 | 1978 | spin_unlock_irq(&qdio->req_q_lock); |
c41f8cbd | 1979 | return retval; |
1da177e4 LT |
1980 | } |
1981 | ||
c9615858 CS |
1982 | static void zfcp_fsf_update_lat(struct fsf_latency_record *lat_rec, u32 lat) |
1983 | { | |
1984 | lat_rec->sum += lat; | |
c41f8cbd SS |
1985 | lat_rec->min = min(lat_rec->min, lat); |
1986 | lat_rec->max = max(lat_rec->max, lat); | |
c9615858 CS |
1987 | } |
1988 | ||
d9742b42 | 1989 | static void zfcp_fsf_req_trace(struct zfcp_fsf_req *req, struct scsi_cmnd *scsi) |
c9615858 | 1990 | { |
d9742b42 CS |
1991 | struct fsf_qual_latency_info *lat_in; |
1992 | struct latency_cont *lat = NULL; | |
d436de8c | 1993 | struct zfcp_scsi_dev *zfcp_sdev; |
d9742b42 CS |
1994 | struct zfcp_blk_drv_data blktrc; |
1995 | int ticks = req->adapter->timer_ticks; | |
c9615858 | 1996 | |
d9742b42 | 1997 | lat_in = &req->qtcb->prefix.prot_status_qual.latency_info; |
c9615858 | 1998 | |
d9742b42 CS |
1999 | blktrc.flags = 0; |
2000 | blktrc.magic = ZFCP_BLK_DRV_DATA_MAGIC; | |
2001 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) | |
2002 | blktrc.flags |= ZFCP_BLK_REQ_ERROR; | |
706eca49 | 2003 | blktrc.inb_usage = 0; |
34c2b712 | 2004 | blktrc.outb_usage = req->qdio_req.qdio_outb_usage; |
d9742b42 | 2005 | |
5bbf297c CS |
2006 | if (req->adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA && |
2007 | !(req->status & ZFCP_STATUS_FSFREQ_ERROR)) { | |
d436de8c | 2008 | zfcp_sdev = sdev_to_zfcp(scsi->device); |
d9742b42 CS |
2009 | blktrc.flags |= ZFCP_BLK_LAT_VALID; |
2010 | blktrc.channel_lat = lat_in->channel_lat * ticks; | |
2011 | blktrc.fabric_lat = lat_in->fabric_lat * ticks; | |
2012 | ||
2013 | switch (req->qtcb->bottom.io.data_direction) { | |
ef3eb71d FB |
2014 | case FSF_DATADIR_DIF_READ_STRIP: |
2015 | case FSF_DATADIR_DIF_READ_CONVERT: | |
d9742b42 | 2016 | case FSF_DATADIR_READ: |
b62a8d9b | 2017 | lat = &zfcp_sdev->latencies.read; |
d9742b42 | 2018 | break; |
ef3eb71d FB |
2019 | case FSF_DATADIR_DIF_WRITE_INSERT: |
2020 | case FSF_DATADIR_DIF_WRITE_CONVERT: | |
d9742b42 | 2021 | case FSF_DATADIR_WRITE: |
b62a8d9b | 2022 | lat = &zfcp_sdev->latencies.write; |
d9742b42 CS |
2023 | break; |
2024 | case FSF_DATADIR_CMND: | |
b62a8d9b | 2025 | lat = &zfcp_sdev->latencies.cmd; |
d9742b42 CS |
2026 | break; |
2027 | } | |
1da177e4 | 2028 | |
d9742b42 | 2029 | if (lat) { |
b62a8d9b | 2030 | spin_lock(&zfcp_sdev->latencies.lock); |
d9742b42 CS |
2031 | zfcp_fsf_update_lat(&lat->channel, lat_in->channel_lat); |
2032 | zfcp_fsf_update_lat(&lat->fabric, lat_in->fabric_lat); | |
2033 | lat->counter++; | |
b62a8d9b | 2034 | spin_unlock(&zfcp_sdev->latencies.lock); |
d9742b42 | 2035 | } |
0997f1c5 | 2036 | } |
0997f1c5 | 2037 | |
d9742b42 CS |
2038 | blk_add_driver_data(scsi->request->q, scsi->request, &blktrc, |
2039 | sizeof(blktrc)); | |
0997f1c5 | 2040 | } |
0997f1c5 | 2041 | |
c61b536c | 2042 | static void zfcp_fsf_fcp_handler_common(struct zfcp_fsf_req *req) |
c41f8cbd | 2043 | { |
b62a8d9b CS |
2044 | struct scsi_cmnd *scmnd = req->data; |
2045 | struct scsi_device *sdev = scmnd->device; | |
d436de8c | 2046 | struct zfcp_scsi_dev *zfcp_sdev; |
c41f8cbd SS |
2047 | struct fsf_qtcb_header *header = &req->qtcb->header; |
2048 | ||
c41f8cbd | 2049 | if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) |
c61b536c | 2050 | return; |
1da177e4 | 2051 | |
d436de8c MP |
2052 | zfcp_sdev = sdev_to_zfcp(sdev); |
2053 | ||
c41f8cbd SS |
2054 | switch (header->fsf_status) { |
2055 | case FSF_HANDLE_MISMATCH: | |
2056 | case FSF_PORT_HANDLE_NOT_VALID: | |
ea4a3a6a | 2057 | zfcp_erp_adapter_reopen(zfcp_sdev->port->adapter, 0, "fssfch1"); |
c41f8cbd SS |
2058 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
2059 | break; | |
2060 | case FSF_FCPLUN_NOT_VALID: | |
2061 | case FSF_LUN_HANDLE_NOT_VALID: | |
ea4a3a6a | 2062 | zfcp_erp_port_reopen(zfcp_sdev->port, 0, "fssfch2"); |
c41f8cbd | 2063 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 | 2064 | break; |
c41f8cbd SS |
2065 | case FSF_SERVICE_CLASS_NOT_SUPPORTED: |
2066 | zfcp_fsf_class_not_supp(req); | |
1da177e4 | 2067 | break; |
c41f8cbd | 2068 | case FSF_ACCESS_DENIED: |
a1ca4831 CS |
2069 | zfcp_cfdc_lun_denied(sdev, &header->fsf_status_qual); |
2070 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; | |
c41f8cbd SS |
2071 | break; |
2072 | case FSF_DIRECTION_INDICATOR_NOT_VALID: | |
2073 | dev_err(&req->adapter->ccw_device->dev, | |
b62a8d9b | 2074 | "Incorrect direction %d, LUN 0x%016Lx on port " |
ff3b24fa | 2075 | "0x%016Lx closed\n", |
c41f8cbd | 2076 | req->qtcb->bottom.io.data_direction, |
b62a8d9b CS |
2077 | (unsigned long long)zfcp_scsi_dev_lun(sdev), |
2078 | (unsigned long long)zfcp_sdev->port->wwpn); | |
2079 | zfcp_erp_adapter_shutdown(zfcp_sdev->port->adapter, 0, | |
ea4a3a6a | 2080 | "fssfch3"); |
c41f8cbd SS |
2081 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
2082 | break; | |
2083 | case FSF_CMND_LENGTH_NOT_VALID: | |
2084 | dev_err(&req->adapter->ccw_device->dev, | |
b62a8d9b | 2085 | "Incorrect CDB length %d, LUN 0x%016Lx on " |
ff3b24fa | 2086 | "port 0x%016Lx closed\n", |
c41f8cbd | 2087 | req->qtcb->bottom.io.fcp_cmnd_length, |
b62a8d9b CS |
2088 | (unsigned long long)zfcp_scsi_dev_lun(sdev), |
2089 | (unsigned long long)zfcp_sdev->port->wwpn); | |
2090 | zfcp_erp_adapter_shutdown(zfcp_sdev->port->adapter, 0, | |
ea4a3a6a | 2091 | "fssfch4"); |
c41f8cbd SS |
2092 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
2093 | break; | |
2094 | case FSF_PORT_BOXED: | |
edaed859 SS |
2095 | zfcp_erp_set_port_status(zfcp_sdev->port, |
2096 | ZFCP_STATUS_COMMON_ACCESS_BOXED); | |
2097 | zfcp_erp_port_reopen(zfcp_sdev->port, | |
ea4a3a6a | 2098 | ZFCP_STATUS_COMMON_ERP_FAILED, "fssfch5"); |
4c571c65 | 2099 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
c41f8cbd SS |
2100 | break; |
2101 | case FSF_LUN_BOXED: | |
edaed859 SS |
2102 | zfcp_erp_set_lun_status(sdev, ZFCP_STATUS_COMMON_ACCESS_BOXED); |
2103 | zfcp_erp_lun_reopen(sdev, ZFCP_STATUS_COMMON_ERP_FAILED, | |
ea4a3a6a | 2104 | "fssfch6"); |
4c571c65 | 2105 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
c41f8cbd SS |
2106 | break; |
2107 | case FSF_ADAPTER_STATUS_AVAILABLE: | |
2108 | if (header->fsf_status_qual.word[0] == | |
2109 | FSF_SQ_INVOKE_LINK_TEST_PROCEDURE) | |
b62a8d9b | 2110 | zfcp_fc_test_link(zfcp_sdev->port); |
c41f8cbd | 2111 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
1da177e4 | 2112 | break; |
1da177e4 | 2113 | } |
c61b536c CS |
2114 | } |
2115 | ||
2116 | static void zfcp_fsf_fcp_cmnd_handler(struct zfcp_fsf_req *req) | |
2117 | { | |
2118 | struct scsi_cmnd *scpnt; | |
2119 | struct fcp_resp_with_ext *fcp_rsp; | |
2120 | unsigned long flags; | |
2121 | ||
c61b536c CS |
2122 | read_lock_irqsave(&req->adapter->abort_lock, flags); |
2123 | ||
2124 | scpnt = req->data; | |
2125 | if (unlikely(!scpnt)) { | |
2126 | read_unlock_irqrestore(&req->adapter->abort_lock, flags); | |
2127 | return; | |
c41f8cbd | 2128 | } |
c61b536c | 2129 | |
5bfb2c31 SS |
2130 | zfcp_fsf_fcp_handler_common(req); |
2131 | ||
c61b536c CS |
2132 | if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) { |
2133 | set_host_byte(scpnt, DID_TRANSPORT_DISRUPTED); | |
2134 | goto skip_fsfstatus; | |
2135 | } | |
2136 | ||
2137 | switch (req->qtcb->header.fsf_status) { | |
2138 | case FSF_INCONSISTENT_PROT_DATA: | |
2139 | case FSF_INVALID_PROT_PARM: | |
2140 | set_host_byte(scpnt, DID_ERROR); | |
2141 | goto skip_fsfstatus; | |
2142 | case FSF_BLOCK_GUARD_CHECK_FAILURE: | |
2143 | zfcp_scsi_dif_sense_error(scpnt, 0x1); | |
2144 | goto skip_fsfstatus; | |
2145 | case FSF_APP_TAG_CHECK_FAILURE: | |
2146 | zfcp_scsi_dif_sense_error(scpnt, 0x2); | |
2147 | goto skip_fsfstatus; | |
2148 | case FSF_REF_TAG_CHECK_FAILURE: | |
2149 | zfcp_scsi_dif_sense_error(scpnt, 0x3); | |
2150 | goto skip_fsfstatus; | |
2151 | } | |
2152 | fcp_rsp = (struct fcp_resp_with_ext *) &req->qtcb->bottom.io.fcp_rsp; | |
2153 | zfcp_fc_eval_fcp_rsp(fcp_rsp, scpnt); | |
2154 | ||
2155 | skip_fsfstatus: | |
2156 | zfcp_fsf_req_trace(req, scpnt); | |
250a1352 | 2157 | zfcp_dbf_scsi_result(scpnt, req); |
c61b536c CS |
2158 | |
2159 | scpnt->host_scribble = NULL; | |
2160 | (scpnt->scsi_done) (scpnt); | |
2161 | /* | |
2162 | * We must hold this lock until scsi_done has been called. | |
2163 | * Otherwise we may call scsi_done after abort regarding this | |
2164 | * command has completed. | |
2165 | * Note: scsi_done must not block! | |
2166 | */ | |
2167 | read_unlock_irqrestore(&req->adapter->abort_lock, flags); | |
1da177e4 LT |
2168 | } |
2169 | ||
ef3eb71d FB |
2170 | static int zfcp_fsf_set_data_dir(struct scsi_cmnd *scsi_cmnd, u32 *data_dir) |
2171 | { | |
2172 | switch (scsi_get_prot_op(scsi_cmnd)) { | |
2173 | case SCSI_PROT_NORMAL: | |
2174 | switch (scsi_cmnd->sc_data_direction) { | |
2175 | case DMA_NONE: | |
2176 | *data_dir = FSF_DATADIR_CMND; | |
2177 | break; | |
2178 | case DMA_FROM_DEVICE: | |
2179 | *data_dir = FSF_DATADIR_READ; | |
2180 | break; | |
2181 | case DMA_TO_DEVICE: | |
2182 | *data_dir = FSF_DATADIR_WRITE; | |
2183 | break; | |
2184 | case DMA_BIDIRECTIONAL: | |
2185 | return -EINVAL; | |
2186 | } | |
2187 | break; | |
2188 | ||
2189 | case SCSI_PROT_READ_STRIP: | |
2190 | *data_dir = FSF_DATADIR_DIF_READ_STRIP; | |
2191 | break; | |
2192 | case SCSI_PROT_WRITE_INSERT: | |
2193 | *data_dir = FSF_DATADIR_DIF_WRITE_INSERT; | |
2194 | break; | |
2195 | case SCSI_PROT_READ_PASS: | |
2196 | *data_dir = FSF_DATADIR_DIF_READ_CONVERT; | |
2197 | break; | |
2198 | case SCSI_PROT_WRITE_PASS: | |
2199 | *data_dir = FSF_DATADIR_DIF_WRITE_CONVERT; | |
2200 | break; | |
2201 | default: | |
2202 | return -EINVAL; | |
2203 | } | |
2204 | ||
2205 | return 0; | |
2206 | } | |
2207 | ||
c41f8cbd | 2208 | /** |
b62a8d9b | 2209 | * zfcp_fsf_fcp_cmnd - initiate an FCP command (for a SCSI command) |
c41f8cbd | 2210 | * @scsi_cmnd: scsi command to be sent |
1da177e4 | 2211 | */ |
b62a8d9b | 2212 | int zfcp_fsf_fcp_cmnd(struct scsi_cmnd *scsi_cmnd) |
1da177e4 | 2213 | { |
c41f8cbd | 2214 | struct zfcp_fsf_req *req; |
4318e08c | 2215 | struct fcp_cmnd *fcp_cmnd; |
3ec90878 | 2216 | u8 sbtype = SBAL_SFLAGS0_TYPE_READ; |
86a9668a | 2217 | int retval = -EIO; |
b62a8d9b CS |
2218 | struct scsi_device *sdev = scsi_cmnd->device; |
2219 | struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); | |
2220 | struct zfcp_adapter *adapter = zfcp_sdev->port->adapter; | |
564e1c86 | 2221 | struct zfcp_qdio *qdio = adapter->qdio; |
ef3eb71d | 2222 | struct fsf_qtcb_bottom_io *io; |
e55f8753 | 2223 | unsigned long flags; |
1da177e4 | 2224 | |
b62a8d9b | 2225 | if (unlikely(!(atomic_read(&zfcp_sdev->status) & |
c41f8cbd SS |
2226 | ZFCP_STATUS_COMMON_UNBLOCKED))) |
2227 | return -EBUSY; | |
1da177e4 | 2228 | |
e55f8753 | 2229 | spin_lock_irqsave(&qdio->req_q_lock, flags); |
706eca49 | 2230 | if (atomic_read(&qdio->req_q_free) <= 0) { |
564e1c86 | 2231 | atomic_inc(&qdio->req_q_full); |
c41f8cbd | 2232 | goto out; |
8fdf30d5 | 2233 | } |
09a46c6e | 2234 | |
1674b405 | 2235 | if (scsi_cmnd->sc_data_direction == DMA_TO_DEVICE) |
3ec90878 | 2236 | sbtype = SBAL_SFLAGS0_TYPE_WRITE; |
1674b405 | 2237 | |
564e1c86 | 2238 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_FCP_CMND, |
1674b405 | 2239 | sbtype, adapter->pool.scsi_req); |
09a46c6e | 2240 | |
025270f0 | 2241 | if (IS_ERR(req)) { |
c41f8cbd SS |
2242 | retval = PTR_ERR(req); |
2243 | goto out; | |
2244 | } | |
2245 | ||
ef3eb71d FB |
2246 | scsi_cmnd->host_scribble = (unsigned char *) req->req_id; |
2247 | ||
2248 | io = &req->qtcb->bottom.io; | |
09a46c6e | 2249 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
c41f8cbd | 2250 | req->data = scsi_cmnd; |
c61b536c | 2251 | req->handler = zfcp_fsf_fcp_cmnd_handler; |
b62a8d9b CS |
2252 | req->qtcb->header.lun_handle = zfcp_sdev->lun_handle; |
2253 | req->qtcb->header.port_handle = zfcp_sdev->port->handle; | |
ef3eb71d FB |
2254 | io->service_class = FSF_CLASS_3; |
2255 | io->fcp_cmnd_length = FCP_CMND_LEN; | |
c41f8cbd | 2256 | |
ef3eb71d FB |
2257 | if (scsi_get_prot_op(scsi_cmnd) != SCSI_PROT_NORMAL) { |
2258 | io->data_block_length = scsi_cmnd->device->sector_size; | |
2259 | io->ref_tag_value = scsi_get_lba(scsi_cmnd) & 0xFFFFFFFF; | |
1da177e4 LT |
2260 | } |
2261 | ||
cc405ace SM |
2262 | if (zfcp_fsf_set_data_dir(scsi_cmnd, &io->data_direction)) |
2263 | goto failed_scsi_cmnd; | |
ef3eb71d | 2264 | |
4318e08c | 2265 | fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd; |
2443c8b2 | 2266 | zfcp_fc_scsi_to_fcp(fcp_cmnd, scsi_cmnd, 0); |
1da177e4 | 2267 | |
ef3eb71d FB |
2268 | if (scsi_prot_sg_count(scsi_cmnd)) { |
2269 | zfcp_qdio_set_data_div(qdio, &req->qdio_req, | |
2270 | scsi_prot_sg_count(scsi_cmnd)); | |
86a9668a SS |
2271 | retval = zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, |
2272 | scsi_prot_sglist(scsi_cmnd)); | |
2273 | if (retval) | |
2274 | goto failed_scsi_cmnd; | |
2275 | io->prot_data_length = zfcp_qdio_real_bytes( | |
ef3eb71d | 2276 | scsi_prot_sglist(scsi_cmnd)); |
ef3eb71d FB |
2277 | } |
2278 | ||
86a9668a SS |
2279 | retval = zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, |
2280 | scsi_sglist(scsi_cmnd)); | |
2281 | if (unlikely(retval)) | |
c41f8cbd | 2282 | goto failed_scsi_cmnd; |
1da177e4 | 2283 | |
ef3eb71d | 2284 | zfcp_qdio_set_sbale_last(adapter->qdio, &req->qdio_req); |
86a9668a SS |
2285 | if (zfcp_adapter_multi_buffer_active(adapter)) |
2286 | zfcp_qdio_set_scount(qdio, &req->qdio_req); | |
ef3eb71d | 2287 | |
c41f8cbd SS |
2288 | retval = zfcp_fsf_req_send(req); |
2289 | if (unlikely(retval)) | |
2290 | goto failed_scsi_cmnd; | |
1da177e4 | 2291 | |
c41f8cbd | 2292 | goto out; |
1da177e4 | 2293 | |
c41f8cbd | 2294 | failed_scsi_cmnd: |
c41f8cbd SS |
2295 | zfcp_fsf_req_free(req); |
2296 | scsi_cmnd->host_scribble = NULL; | |
2297 | out: | |
e55f8753 | 2298 | spin_unlock_irqrestore(&qdio->req_q_lock, flags); |
c41f8cbd | 2299 | return retval; |
1da177e4 LT |
2300 | } |
2301 | ||
c61b536c CS |
2302 | static void zfcp_fsf_fcp_task_mgmt_handler(struct zfcp_fsf_req *req) |
2303 | { | |
2304 | struct fcp_resp_with_ext *fcp_rsp; | |
2305 | struct fcp_resp_rsp_info *rsp_info; | |
2306 | ||
2307 | zfcp_fsf_fcp_handler_common(req); | |
2308 | ||
2309 | fcp_rsp = (struct fcp_resp_with_ext *) &req->qtcb->bottom.io.fcp_rsp; | |
2310 | rsp_info = (struct fcp_resp_rsp_info *) &fcp_rsp[1]; | |
2311 | ||
2312 | if ((rsp_info->rsp_code != FCP_TMF_CMPL) || | |
2313 | (req->status & ZFCP_STATUS_FSFREQ_ERROR)) | |
2314 | req->status |= ZFCP_STATUS_FSFREQ_TMFUNCFAILED; | |
2315 | } | |
2316 | ||
1da177e4 | 2317 | /** |
b62a8d9b CS |
2318 | * zfcp_fsf_fcp_task_mgmt - send SCSI task management command |
2319 | * @scmnd: SCSI command to send the task management command for | |
c41f8cbd | 2320 | * @tm_flags: unsigned byte for task management flags |
c41f8cbd | 2321 | * Returns: on success pointer to struct fsf_req, NULL otherwise |
1da177e4 | 2322 | */ |
b62a8d9b CS |
2323 | struct zfcp_fsf_req *zfcp_fsf_fcp_task_mgmt(struct scsi_cmnd *scmnd, |
2324 | u8 tm_flags) | |
1da177e4 | 2325 | { |
c41f8cbd | 2326 | struct zfcp_fsf_req *req = NULL; |
4318e08c | 2327 | struct fcp_cmnd *fcp_cmnd; |
b62a8d9b CS |
2328 | struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(scmnd->device); |
2329 | struct zfcp_qdio *qdio = zfcp_sdev->port->adapter->qdio; | |
1da177e4 | 2330 | |
b62a8d9b | 2331 | if (unlikely(!(atomic_read(&zfcp_sdev->status) & |
c41f8cbd SS |
2332 | ZFCP_STATUS_COMMON_UNBLOCKED))) |
2333 | return NULL; | |
1da177e4 | 2334 | |
44a24cb3 | 2335 | spin_lock_irq(&qdio->req_q_lock); |
6b9e1520 | 2336 | if (zfcp_qdio_sbal_get(qdio)) |
c41f8cbd | 2337 | goto out; |
09a46c6e | 2338 | |
564e1c86 | 2339 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_FCP_CMND, |
3ec90878 | 2340 | SBAL_SFLAGS0_TYPE_WRITE, |
564e1c86 | 2341 | qdio->adapter->pool.scsi_req); |
09a46c6e | 2342 | |
633528c3 SS |
2343 | if (IS_ERR(req)) { |
2344 | req = NULL; | |
c41f8cbd | 2345 | goto out; |
633528c3 | 2346 | } |
1da177e4 | 2347 | |
b62a8d9b | 2348 | req->data = scmnd; |
c61b536c | 2349 | req->handler = zfcp_fsf_fcp_task_mgmt_handler; |
b62a8d9b CS |
2350 | req->qtcb->header.lun_handle = zfcp_sdev->lun_handle; |
2351 | req->qtcb->header.port_handle = zfcp_sdev->port->handle; | |
c41f8cbd SS |
2352 | req->qtcb->bottom.io.data_direction = FSF_DATADIR_CMND; |
2353 | req->qtcb->bottom.io.service_class = FSF_CLASS_3; | |
4318e08c | 2354 | req->qtcb->bottom.io.fcp_cmnd_length = FCP_CMND_LEN; |
c41f8cbd | 2355 | |
1674b405 | 2356 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
1da177e4 | 2357 | |
4318e08c | 2358 | fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd; |
2443c8b2 | 2359 | zfcp_fc_scsi_to_fcp(fcp_cmnd, scmnd, tm_flags); |
1da177e4 | 2360 | |
c41f8cbd SS |
2361 | zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT); |
2362 | if (!zfcp_fsf_req_send(req)) | |
2363 | goto out; | |
1da177e4 | 2364 | |
c41f8cbd SS |
2365 | zfcp_fsf_req_free(req); |
2366 | req = NULL; | |
2367 | out: | |
44a24cb3 | 2368 | spin_unlock_irq(&qdio->req_q_lock); |
c41f8cbd SS |
2369 | return req; |
2370 | } | |
1da177e4 | 2371 | |
c41f8cbd SS |
2372 | static void zfcp_fsf_control_file_handler(struct zfcp_fsf_req *req) |
2373 | { | |
1da177e4 LT |
2374 | } |
2375 | ||
c41f8cbd SS |
2376 | /** |
2377 | * zfcp_fsf_control_file - control file upload/download | |
2378 | * @adapter: pointer to struct zfcp_adapter | |
2379 | * @fsf_cfdc: pointer to struct zfcp_fsf_cfdc | |
2380 | * Returns: on success pointer to struct zfcp_fsf_req, NULL otherwise | |
1da177e4 | 2381 | */ |
c41f8cbd SS |
2382 | struct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *adapter, |
2383 | struct zfcp_fsf_cfdc *fsf_cfdc) | |
1da177e4 | 2384 | { |
564e1c86 | 2385 | struct zfcp_qdio *qdio = adapter->qdio; |
c41f8cbd SS |
2386 | struct zfcp_fsf_req *req = NULL; |
2387 | struct fsf_qtcb_bottom_support *bottom; | |
86a9668a | 2388 | int retval = -EIO; |
3ec90878 | 2389 | u8 direction; |
c41f8cbd SS |
2390 | |
2391 | if (!(adapter->adapter_features & FSF_FEATURE_CFDC)) | |
2392 | return ERR_PTR(-EOPNOTSUPP); | |
2393 | ||
2394 | switch (fsf_cfdc->command) { | |
2395 | case FSF_QTCB_DOWNLOAD_CONTROL_FILE: | |
3ec90878 | 2396 | direction = SBAL_SFLAGS0_TYPE_WRITE; |
c41f8cbd SS |
2397 | break; |
2398 | case FSF_QTCB_UPLOAD_CONTROL_FILE: | |
3ec90878 | 2399 | direction = SBAL_SFLAGS0_TYPE_READ; |
c41f8cbd SS |
2400 | break; |
2401 | default: | |
2402 | return ERR_PTR(-EINVAL); | |
2403 | } | |
1da177e4 | 2404 | |
44a24cb3 | 2405 | spin_lock_irq(&qdio->req_q_lock); |
6b9e1520 | 2406 | if (zfcp_qdio_sbal_get(qdio)) |
c41f8cbd | 2407 | goto out; |
1da177e4 | 2408 | |
1674b405 | 2409 | req = zfcp_fsf_req_create(qdio, fsf_cfdc->command, direction, NULL); |
025270f0 | 2410 | if (IS_ERR(req)) { |
c41f8cbd SS |
2411 | retval = -EPERM; |
2412 | goto out; | |
2413 | } | |
1da177e4 | 2414 | |
c41f8cbd | 2415 | req->handler = zfcp_fsf_control_file_handler; |
1da177e4 | 2416 | |
c41f8cbd SS |
2417 | bottom = &req->qtcb->bottom.support; |
2418 | bottom->operation_subtype = FSF_CFDC_OPERATION_SUBTYPE; | |
2419 | bottom->option = fsf_cfdc->option; | |
8a36e453 | 2420 | |
86a9668a | 2421 | retval = zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, fsf_cfdc->sg); |
01b04759 | 2422 | |
86a9668a SS |
2423 | if (retval || |
2424 | (zfcp_qdio_real_bytes(fsf_cfdc->sg) != ZFCP_CFDC_MAX_SIZE)) { | |
c41f8cbd | 2425 | zfcp_fsf_req_free(req); |
86a9668a | 2426 | retval = -EIO; |
c41f8cbd SS |
2427 | goto out; |
2428 | } | |
86a9668a SS |
2429 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
2430 | if (zfcp_adapter_multi_buffer_active(adapter)) | |
2431 | zfcp_qdio_set_scount(qdio, &req->qdio_req); | |
1da177e4 | 2432 | |
c41f8cbd SS |
2433 | zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); |
2434 | retval = zfcp_fsf_req_send(req); | |
2435 | out: | |
44a24cb3 | 2436 | spin_unlock_irq(&qdio->req_q_lock); |
8a36e453 | 2437 | |
c41f8cbd | 2438 | if (!retval) { |
058b8647 | 2439 | wait_for_completion(&req->completion); |
c41f8cbd | 2440 | return req; |
1da177e4 | 2441 | } |
c41f8cbd | 2442 | return ERR_PTR(retval); |
1da177e4 | 2443 | } |
bd63eaf4 SS |
2444 | |
2445 | /** | |
2446 | * zfcp_fsf_reqid_check - validate req_id contained in SBAL returned by QDIO | |
2447 | * @adapter: pointer to struct zfcp_adapter | |
2448 | * @sbal_idx: response queue index of SBAL to be processed | |
2449 | */ | |
564e1c86 | 2450 | void zfcp_fsf_reqid_check(struct zfcp_qdio *qdio, int sbal_idx) |
bd63eaf4 | 2451 | { |
564e1c86 | 2452 | struct zfcp_adapter *adapter = qdio->adapter; |
706eca49 | 2453 | struct qdio_buffer *sbal = qdio->res_q[sbal_idx]; |
bd63eaf4 SS |
2454 | struct qdio_buffer_element *sbale; |
2455 | struct zfcp_fsf_req *fsf_req; | |
b6bd2fb9 | 2456 | unsigned long req_id; |
bd63eaf4 SS |
2457 | int idx; |
2458 | ||
2459 | for (idx = 0; idx < QDIO_MAX_ELEMENTS_PER_BUFFER; idx++) { | |
2460 | ||
2461 | sbale = &sbal->element[idx]; | |
2462 | req_id = (unsigned long) sbale->addr; | |
b6bd2fb9 | 2463 | fsf_req = zfcp_reqlist_find_rm(adapter->req_list, req_id); |
bd63eaf4 | 2464 | |
339f4f4e | 2465 | if (!fsf_req) { |
bd63eaf4 SS |
2466 | /* |
2467 | * Unknown request means that we have potentially memory | |
2468 | * corruption and must stop the machine immediately. | |
2469 | */ | |
339f4f4e | 2470 | zfcp_qdio_siosl(adapter); |
bd63eaf4 SS |
2471 | panic("error: unknown req_id (%lx) on adapter %s.\n", |
2472 | req_id, dev_name(&adapter->ccw_device->dev)); | |
339f4f4e | 2473 | } |
bd63eaf4 | 2474 | |
34c2b712 | 2475 | fsf_req->qdio_req.sbal_response = sbal_idx; |
bd63eaf4 SS |
2476 | zfcp_fsf_req_complete(fsf_req); |
2477 | ||
3ec90878 | 2478 | if (likely(sbale->eflags & SBAL_EFLAGS_LAST_ENTRY)) |
bd63eaf4 SS |
2479 | break; |
2480 | } | |
2481 | } | |
a54ca0f6 SS |
2482 | |
2483 | struct zfcp_fsf_req *zfcp_fsf_get_req(struct zfcp_qdio *qdio, | |
2484 | struct qdio_buffer *sbal) | |
2485 | { | |
2486 | struct qdio_buffer_element *sbale = &sbal->element[0]; | |
2487 | u64 req_id = (unsigned long) sbale->addr; | |
2488 | ||
2489 | return zfcp_reqlist_find(qdio->adapter->req_list, req_id); | |
2490 | } |