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f1c3b0fc JS |
1 | /******************************************************************* |
2 | * This file is part of the Emulex Linux Device Driver for * | |
3 | * Fibre Channel Host Bus Adapters. * | |
f25e8e79 | 4 | * Copyright (C) 2009-2015 Emulex. All rights reserved. * |
f1c3b0fc JS |
5 | * EMULEX and SLI are trademarks of Emulex. * |
6 | * www.emulex.com * | |
7 | * * | |
8 | * This program is free software; you can redistribute it and/or * | |
9 | * modify it under the terms of version 2 of the GNU General * | |
10 | * Public License as published by the Free Software Foundation. * | |
11 | * This program is distributed in the hope that it will be useful. * | |
12 | * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * | |
13 | * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * | |
14 | * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * | |
15 | * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * | |
16 | * TO BE LEGALLY INVALID. See the GNU General Public License for * | |
17 | * more details, a copy of which can be found in the file COPYING * | |
18 | * included with this package. * | |
19 | *******************************************************************/ | |
20 | ||
21 | #include <linux/interrupt.h> | |
22 | #include <linux/mempool.h> | |
23 | #include <linux/pci.h> | |
5a0e3ad6 | 24 | #include <linux/slab.h> |
277e76f1 | 25 | #include <linux/delay.h> |
7ad20aa9 | 26 | #include <linux/list.h> |
f1c3b0fc JS |
27 | |
28 | #include <scsi/scsi.h> | |
29 | #include <scsi/scsi_host.h> | |
30 | #include <scsi/scsi_transport_fc.h> | |
31 | #include <scsi/scsi_bsg_fc.h> | |
6a9c52cf | 32 | #include <scsi/fc/fc_fs.h> |
f1c3b0fc JS |
33 | |
34 | #include "lpfc_hw4.h" | |
35 | #include "lpfc_hw.h" | |
36 | #include "lpfc_sli.h" | |
37 | #include "lpfc_sli4.h" | |
38 | #include "lpfc_nl.h" | |
4fede78f | 39 | #include "lpfc_bsg.h" |
f1c3b0fc JS |
40 | #include "lpfc_disc.h" |
41 | #include "lpfc_scsi.h" | |
42 | #include "lpfc.h" | |
43 | #include "lpfc_logmsg.h" | |
44 | #include "lpfc_crtn.h" | |
b76f2dc9 | 45 | #include "lpfc_debugfs.h" |
f1c3b0fc JS |
46 | #include "lpfc_vport.h" |
47 | #include "lpfc_version.h" | |
48 | ||
4cc0e56e JS |
49 | struct lpfc_bsg_event { |
50 | struct list_head node; | |
51 | struct kref kref; | |
52 | wait_queue_head_t wq; | |
53 | ||
54 | /* Event type and waiter identifiers */ | |
55 | uint32_t type_mask; | |
56 | uint32_t req_id; | |
57 | uint32_t reg_id; | |
58 | ||
59 | /* next two flags are here for the auto-delete logic */ | |
60 | unsigned long wait_time_stamp; | |
61 | int waiting; | |
62 | ||
63 | /* seen and not seen events */ | |
64 | struct list_head events_to_get; | |
65 | struct list_head events_to_see; | |
66 | ||
a33c4f7b JS |
67 | /* driver data associated with the job */ |
68 | void *dd_data; | |
4cc0e56e JS |
69 | }; |
70 | ||
71 | struct lpfc_bsg_iocb { | |
72 | struct lpfc_iocbq *cmdiocbq; | |
a33c4f7b | 73 | struct lpfc_dmabuf *rmp; |
4cc0e56e | 74 | struct lpfc_nodelist *ndlp; |
4cc0e56e JS |
75 | }; |
76 | ||
3b5dd52a JS |
77 | struct lpfc_bsg_mbox { |
78 | LPFC_MBOXQ_t *pmboxq; | |
79 | MAILBOX_t *mb; | |
7ad20aa9 | 80 | struct lpfc_dmabuf *dmabuffers; /* for BIU diags */ |
7a470277 JS |
81 | uint8_t *ext; /* extended mailbox data */ |
82 | uint32_t mbOffset; /* from app */ | |
83 | uint32_t inExtWLen; /* from app */ | |
c7495937 | 84 | uint32_t outExtWLen; /* from app */ |
3b5dd52a JS |
85 | }; |
86 | ||
e2aed29f JS |
87 | #define MENLO_DID 0x0000FC0E |
88 | ||
89 | struct lpfc_bsg_menlo { | |
90 | struct lpfc_iocbq *cmdiocbq; | |
a33c4f7b | 91 | struct lpfc_dmabuf *rmp; |
e2aed29f JS |
92 | }; |
93 | ||
4cc0e56e JS |
94 | #define TYPE_EVT 1 |
95 | #define TYPE_IOCB 2 | |
3b5dd52a | 96 | #define TYPE_MBOX 3 |
e2aed29f | 97 | #define TYPE_MENLO 4 |
4cc0e56e JS |
98 | struct bsg_job_data { |
99 | uint32_t type; | |
a33c4f7b | 100 | struct fc_bsg_job *set_job; /* job waiting for this iocb to finish */ |
4cc0e56e JS |
101 | union { |
102 | struct lpfc_bsg_event *evt; | |
103 | struct lpfc_bsg_iocb iocb; | |
3b5dd52a | 104 | struct lpfc_bsg_mbox mbox; |
e2aed29f | 105 | struct lpfc_bsg_menlo menlo; |
4cc0e56e JS |
106 | } context_un; |
107 | }; | |
108 | ||
109 | struct event_data { | |
110 | struct list_head node; | |
111 | uint32_t type; | |
112 | uint32_t immed_dat; | |
113 | void *data; | |
114 | uint32_t len; | |
115 | }; | |
116 | ||
3b5dd52a | 117 | #define BUF_SZ_4K 4096 |
4cc0e56e JS |
118 | #define SLI_CT_ELX_LOOPBACK 0x10 |
119 | ||
120 | enum ELX_LOOPBACK_CMD { | |
121 | ELX_LOOPBACK_XRI_SETUP, | |
122 | ELX_LOOPBACK_DATA, | |
123 | }; | |
124 | ||
3b5dd52a JS |
125 | #define ELX_LOOPBACK_HEADER_SZ \ |
126 | (size_t)(&((struct lpfc_sli_ct_request *)NULL)->un) | |
127 | ||
4cc0e56e JS |
128 | struct lpfc_dmabufext { |
129 | struct lpfc_dmabuf dma; | |
130 | uint32_t size; | |
131 | uint32_t flag; | |
132 | }; | |
133 | ||
a33c4f7b JS |
134 | static void |
135 | lpfc_free_bsg_buffers(struct lpfc_hba *phba, struct lpfc_dmabuf *mlist) | |
136 | { | |
137 | struct lpfc_dmabuf *mlast, *next_mlast; | |
138 | ||
139 | if (mlist) { | |
140 | list_for_each_entry_safe(mlast, next_mlast, &mlist->list, | |
141 | list) { | |
142 | lpfc_mbuf_free(phba, mlast->virt, mlast->phys); | |
143 | list_del(&mlast->list); | |
144 | kfree(mlast); | |
145 | } | |
146 | lpfc_mbuf_free(phba, mlist->virt, mlist->phys); | |
147 | kfree(mlist); | |
148 | } | |
149 | return; | |
150 | } | |
151 | ||
152 | static struct lpfc_dmabuf * | |
153 | lpfc_alloc_bsg_buffers(struct lpfc_hba *phba, unsigned int size, | |
154 | int outbound_buffers, struct ulp_bde64 *bpl, | |
155 | int *bpl_entries) | |
156 | { | |
157 | struct lpfc_dmabuf *mlist = NULL; | |
158 | struct lpfc_dmabuf *mp; | |
159 | unsigned int bytes_left = size; | |
160 | ||
161 | /* Verify we can support the size specified */ | |
162 | if (!size || (size > (*bpl_entries * LPFC_BPL_SIZE))) | |
163 | return NULL; | |
164 | ||
165 | /* Determine the number of dma buffers to allocate */ | |
166 | *bpl_entries = (size % LPFC_BPL_SIZE ? size/LPFC_BPL_SIZE + 1 : | |
167 | size/LPFC_BPL_SIZE); | |
168 | ||
169 | /* Allocate dma buffer and place in BPL passed */ | |
170 | while (bytes_left) { | |
171 | /* Allocate dma buffer */ | |
172 | mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
173 | if (!mp) { | |
174 | if (mlist) | |
175 | lpfc_free_bsg_buffers(phba, mlist); | |
176 | return NULL; | |
177 | } | |
178 | ||
179 | INIT_LIST_HEAD(&mp->list); | |
180 | mp->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &(mp->phys)); | |
181 | ||
182 | if (!mp->virt) { | |
183 | kfree(mp); | |
184 | if (mlist) | |
185 | lpfc_free_bsg_buffers(phba, mlist); | |
186 | return NULL; | |
187 | } | |
188 | ||
189 | /* Queue it to a linked list */ | |
190 | if (!mlist) | |
191 | mlist = mp; | |
192 | else | |
193 | list_add_tail(&mp->list, &mlist->list); | |
194 | ||
195 | /* Add buffer to buffer pointer list */ | |
196 | if (outbound_buffers) | |
197 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
198 | else | |
199 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; | |
200 | bpl->addrLow = le32_to_cpu(putPaddrLow(mp->phys)); | |
201 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(mp->phys)); | |
202 | bpl->tus.f.bdeSize = (uint16_t) | |
203 | (bytes_left >= LPFC_BPL_SIZE ? LPFC_BPL_SIZE : | |
204 | bytes_left); | |
205 | bytes_left -= bpl->tus.f.bdeSize; | |
206 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
207 | bpl++; | |
208 | } | |
209 | return mlist; | |
210 | } | |
211 | ||
212 | static unsigned int | |
213 | lpfc_bsg_copy_data(struct lpfc_dmabuf *dma_buffers, | |
214 | struct fc_bsg_buffer *bsg_buffers, | |
215 | unsigned int bytes_to_transfer, int to_buffers) | |
216 | { | |
217 | ||
218 | struct lpfc_dmabuf *mp; | |
219 | unsigned int transfer_bytes, bytes_copied = 0; | |
220 | unsigned int sg_offset, dma_offset; | |
221 | unsigned char *dma_address, *sg_address; | |
a33c4f7b | 222 | LIST_HEAD(temp_list); |
d5ce53b7 JS |
223 | struct sg_mapping_iter miter; |
224 | unsigned long flags; | |
225 | unsigned int sg_flags = SG_MITER_ATOMIC; | |
226 | bool sg_valid; | |
a33c4f7b JS |
227 | |
228 | list_splice_init(&dma_buffers->list, &temp_list); | |
229 | list_add(&dma_buffers->list, &temp_list); | |
230 | sg_offset = 0; | |
d5ce53b7 JS |
231 | if (to_buffers) |
232 | sg_flags |= SG_MITER_FROM_SG; | |
233 | else | |
234 | sg_flags |= SG_MITER_TO_SG; | |
235 | sg_miter_start(&miter, bsg_buffers->sg_list, bsg_buffers->sg_cnt, | |
236 | sg_flags); | |
237 | local_irq_save(flags); | |
238 | sg_valid = sg_miter_next(&miter); | |
a33c4f7b JS |
239 | list_for_each_entry(mp, &temp_list, list) { |
240 | dma_offset = 0; | |
d5ce53b7 | 241 | while (bytes_to_transfer && sg_valid && |
a33c4f7b JS |
242 | (dma_offset < LPFC_BPL_SIZE)) { |
243 | dma_address = mp->virt + dma_offset; | |
244 | if (sg_offset) { | |
245 | /* Continue previous partial transfer of sg */ | |
d5ce53b7 JS |
246 | sg_address = miter.addr + sg_offset; |
247 | transfer_bytes = miter.length - sg_offset; | |
a33c4f7b | 248 | } else { |
d5ce53b7 JS |
249 | sg_address = miter.addr; |
250 | transfer_bytes = miter.length; | |
a33c4f7b JS |
251 | } |
252 | if (bytes_to_transfer < transfer_bytes) | |
253 | transfer_bytes = bytes_to_transfer; | |
254 | if (transfer_bytes > (LPFC_BPL_SIZE - dma_offset)) | |
255 | transfer_bytes = LPFC_BPL_SIZE - dma_offset; | |
256 | if (to_buffers) | |
257 | memcpy(dma_address, sg_address, transfer_bytes); | |
258 | else | |
259 | memcpy(sg_address, dma_address, transfer_bytes); | |
260 | dma_offset += transfer_bytes; | |
261 | sg_offset += transfer_bytes; | |
262 | bytes_to_transfer -= transfer_bytes; | |
263 | bytes_copied += transfer_bytes; | |
d5ce53b7 | 264 | if (sg_offset >= miter.length) { |
a33c4f7b | 265 | sg_offset = 0; |
d5ce53b7 | 266 | sg_valid = sg_miter_next(&miter); |
a33c4f7b JS |
267 | } |
268 | } | |
269 | } | |
d5ce53b7 JS |
270 | sg_miter_stop(&miter); |
271 | local_irq_restore(flags); | |
a33c4f7b JS |
272 | list_del_init(&dma_buffers->list); |
273 | list_splice(&temp_list, &dma_buffers->list); | |
274 | return bytes_copied; | |
275 | } | |
276 | ||
4cc0e56e JS |
277 | /** |
278 | * lpfc_bsg_send_mgmt_cmd_cmp - lpfc_bsg_send_mgmt_cmd's completion handler | |
279 | * @phba: Pointer to HBA context object. | |
280 | * @cmdiocbq: Pointer to command iocb. | |
281 | * @rspiocbq: Pointer to response iocb. | |
282 | * | |
283 | * This function is the completion handler for iocbs issued using | |
284 | * lpfc_bsg_send_mgmt_cmd function. This function is called by the | |
285 | * ring event handler function without any lock held. This function | |
286 | * can be called from both worker thread context and interrupt | |
287 | * context. This function also can be called from another thread which | |
288 | * cleans up the SLI layer objects. | |
289 | * This function copies the contents of the response iocb to the | |
290 | * response iocb memory object provided by the caller of | |
291 | * lpfc_sli_issue_iocb_wait and then wakes up the thread which | |
292 | * sleeps for the iocb completion. | |
293 | **/ | |
294 | static void | |
295 | lpfc_bsg_send_mgmt_cmd_cmp(struct lpfc_hba *phba, | |
296 | struct lpfc_iocbq *cmdiocbq, | |
297 | struct lpfc_iocbq *rspiocbq) | |
298 | { | |
4cc0e56e JS |
299 | struct bsg_job_data *dd_data; |
300 | struct fc_bsg_job *job; | |
301 | IOCB_t *rsp; | |
a33c4f7b | 302 | struct lpfc_dmabuf *bmp, *cmp, *rmp; |
4cc0e56e JS |
303 | struct lpfc_nodelist *ndlp; |
304 | struct lpfc_bsg_iocb *iocb; | |
305 | unsigned long flags; | |
a33c4f7b | 306 | unsigned int rsp_size; |
4cc0e56e JS |
307 | int rc = 0; |
308 | ||
a33c4f7b JS |
309 | dd_data = cmdiocbq->context1; |
310 | ||
311 | /* Determine if job has been aborted */ | |
4cc0e56e | 312 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
a33c4f7b JS |
313 | job = dd_data->set_job; |
314 | if (job) { | |
315 | /* Prevent timeout handling from trying to abort job */ | |
316 | job->dd_data = NULL; | |
4cc0e56e | 317 | } |
a33c4f7b | 318 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
4cc0e56e | 319 | |
b5a9b2df JS |
320 | /* Close the timeout handler abort window */ |
321 | spin_lock_irqsave(&phba->hbalock, flags); | |
1b8d11ab | 322 | cmdiocbq->iocb_flag &= ~LPFC_IO_CMD_OUTSTANDING; |
b5a9b2df JS |
323 | spin_unlock_irqrestore(&phba->hbalock, flags); |
324 | ||
4cc0e56e | 325 | iocb = &dd_data->context_un.iocb; |
a33c4f7b JS |
326 | ndlp = iocb->ndlp; |
327 | rmp = iocb->rmp; | |
328 | cmp = cmdiocbq->context2; | |
329 | bmp = cmdiocbq->context3; | |
4cc0e56e | 330 | rsp = &rspiocbq->iocb; |
4cc0e56e | 331 | |
a33c4f7b | 332 | /* Copy the completed data or set the error status */ |
4cc0e56e | 333 | |
a33c4f7b JS |
334 | if (job) { |
335 | if (rsp->ulpStatus) { | |
336 | if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) { | |
337 | switch (rsp->un.ulpWord[4] & IOERR_PARAM_MASK) { | |
338 | case IOERR_SEQUENCE_TIMEOUT: | |
339 | rc = -ETIMEDOUT; | |
340 | break; | |
341 | case IOERR_INVALID_RPI: | |
342 | rc = -EFAULT; | |
343 | break; | |
344 | default: | |
345 | rc = -EACCES; | |
346 | break; | |
347 | } | |
348 | } else { | |
4cc0e56e | 349 | rc = -EACCES; |
4cc0e56e | 350 | } |
a33c4f7b JS |
351 | } else { |
352 | rsp_size = rsp->un.genreq64.bdl.bdeSize; | |
353 | job->reply->reply_payload_rcv_len = | |
354 | lpfc_bsg_copy_data(rmp, &job->reply_payload, | |
355 | rsp_size, 0); | |
356 | } | |
357 | } | |
4cc0e56e | 358 | |
a33c4f7b JS |
359 | lpfc_free_bsg_buffers(phba, cmp); |
360 | lpfc_free_bsg_buffers(phba, rmp); | |
4cc0e56e | 361 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); |
a33c4f7b | 362 | kfree(bmp); |
4cc0e56e JS |
363 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
364 | lpfc_nlp_put(ndlp); | |
4cc0e56e | 365 | kfree(dd_data); |
a33c4f7b JS |
366 | |
367 | /* Complete the job if the job is still active */ | |
368 | ||
369 | if (job) { | |
370 | job->reply->result = rc; | |
371 | job->job_done(job); | |
372 | } | |
4cc0e56e JS |
373 | return; |
374 | } | |
375 | ||
f1c3b0fc | 376 | /** |
4cc0e56e | 377 | * lpfc_bsg_send_mgmt_cmd - send a CT command from a bsg request |
f1c3b0fc | 378 | * @job: fc_bsg_job to handle |
3b5dd52a | 379 | **/ |
f1c3b0fc | 380 | static int |
4cc0e56e | 381 | lpfc_bsg_send_mgmt_cmd(struct fc_bsg_job *job) |
f1c3b0fc | 382 | { |
f1c3b0fc JS |
383 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; |
384 | struct lpfc_hba *phba = vport->phba; | |
385 | struct lpfc_rport_data *rdata = job->rport->dd_data; | |
386 | struct lpfc_nodelist *ndlp = rdata->pnode; | |
387 | struct ulp_bde64 *bpl = NULL; | |
388 | uint32_t timeout; | |
389 | struct lpfc_iocbq *cmdiocbq = NULL; | |
f1c3b0fc | 390 | IOCB_t *cmd; |
a33c4f7b | 391 | struct lpfc_dmabuf *bmp = NULL, *cmp = NULL, *rmp = NULL; |
f1c3b0fc JS |
392 | int request_nseg; |
393 | int reply_nseg; | |
4cc0e56e | 394 | struct bsg_job_data *dd_data; |
b5a9b2df | 395 | unsigned long flags; |
4cc0e56e | 396 | uint32_t creg_val; |
f1c3b0fc | 397 | int rc = 0; |
d439d286 | 398 | int iocb_stat; |
f1c3b0fc JS |
399 | |
400 | /* in case no data is transferred */ | |
401 | job->reply->reply_payload_rcv_len = 0; | |
402 | ||
4cc0e56e JS |
403 | /* allocate our bsg tracking structure */ |
404 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); | |
405 | if (!dd_data) { | |
406 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
407 | "2733 Failed allocation of dd_data\n"); | |
408 | rc = -ENOMEM; | |
409 | goto no_dd_data; | |
410 | } | |
411 | ||
f1c3b0fc | 412 | if (!lpfc_nlp_get(ndlp)) { |
4cc0e56e JS |
413 | rc = -ENODEV; |
414 | goto no_ndlp; | |
415 | } | |
416 | ||
f1c3b0fc JS |
417 | if (ndlp->nlp_flag & NLP_ELS_SND_MASK) { |
418 | rc = -ENODEV; | |
a33c4f7b | 419 | goto free_ndlp; |
f1c3b0fc JS |
420 | } |
421 | ||
f1c3b0fc JS |
422 | cmdiocbq = lpfc_sli_get_iocbq(phba); |
423 | if (!cmdiocbq) { | |
424 | rc = -ENOMEM; | |
a33c4f7b | 425 | goto free_ndlp; |
f1c3b0fc | 426 | } |
f1c3b0fc | 427 | |
4cc0e56e | 428 | cmd = &cmdiocbq->iocb; |
a33c4f7b JS |
429 | |
430 | bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
431 | if (!bmp) { | |
432 | rc = -ENOMEM; | |
433 | goto free_cmdiocbq; | |
434 | } | |
f1c3b0fc JS |
435 | bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys); |
436 | if (!bmp->virt) { | |
437 | rc = -ENOMEM; | |
a33c4f7b | 438 | goto free_bmp; |
f1c3b0fc | 439 | } |
f1c3b0fc JS |
440 | |
441 | INIT_LIST_HEAD(&bmp->list); | |
a33c4f7b | 442 | |
f1c3b0fc | 443 | bpl = (struct ulp_bde64 *) bmp->virt; |
a33c4f7b JS |
444 | request_nseg = LPFC_BPL_SIZE/sizeof(struct ulp_bde64); |
445 | cmp = lpfc_alloc_bsg_buffers(phba, job->request_payload.payload_len, | |
446 | 1, bpl, &request_nseg); | |
447 | if (!cmp) { | |
448 | rc = -ENOMEM; | |
449 | goto free_bmp; | |
f1c3b0fc | 450 | } |
a33c4f7b JS |
451 | lpfc_bsg_copy_data(cmp, &job->request_payload, |
452 | job->request_payload.payload_len, 1); | |
f1c3b0fc | 453 | |
a33c4f7b JS |
454 | bpl += request_nseg; |
455 | reply_nseg = LPFC_BPL_SIZE/sizeof(struct ulp_bde64) - request_nseg; | |
456 | rmp = lpfc_alloc_bsg_buffers(phba, job->reply_payload.payload_len, 0, | |
457 | bpl, &reply_nseg); | |
458 | if (!rmp) { | |
459 | rc = -ENOMEM; | |
460 | goto free_cmp; | |
f1c3b0fc JS |
461 | } |
462 | ||
463 | cmd->un.genreq64.bdl.ulpIoTag32 = 0; | |
464 | cmd->un.genreq64.bdl.addrHigh = putPaddrHigh(bmp->phys); | |
465 | cmd->un.genreq64.bdl.addrLow = putPaddrLow(bmp->phys); | |
466 | cmd->un.genreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; | |
467 | cmd->un.genreq64.bdl.bdeSize = | |
468 | (request_nseg + reply_nseg) * sizeof(struct ulp_bde64); | |
469 | cmd->ulpCommand = CMD_GEN_REQUEST64_CR; | |
470 | cmd->un.genreq64.w5.hcsw.Fctl = (SI | LA); | |
471 | cmd->un.genreq64.w5.hcsw.Dfctl = 0; | |
6a9c52cf JS |
472 | cmd->un.genreq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL; |
473 | cmd->un.genreq64.w5.hcsw.Type = FC_TYPE_CT; | |
f1c3b0fc JS |
474 | cmd->ulpBdeCount = 1; |
475 | cmd->ulpLe = 1; | |
476 | cmd->ulpClass = CLASS3; | |
477 | cmd->ulpContext = ndlp->nlp_rpi; | |
6d368e53 JS |
478 | if (phba->sli_rev == LPFC_SLI_REV4) |
479 | cmd->ulpContext = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; | |
f1c3b0fc JS |
480 | cmd->ulpOwner = OWN_CHIP; |
481 | cmdiocbq->vport = phba->pport; | |
4cc0e56e | 482 | cmdiocbq->context3 = bmp; |
f1c3b0fc | 483 | cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC; |
f1c3b0fc | 484 | timeout = phba->fc_ratov * 2; |
4cc0e56e JS |
485 | cmd->ulpTimeout = timeout; |
486 | ||
487 | cmdiocbq->iocb_cmpl = lpfc_bsg_send_mgmt_cmd_cmp; | |
a33c4f7b JS |
488 | cmdiocbq->context1 = dd_data; |
489 | cmdiocbq->context2 = cmp; | |
490 | cmdiocbq->context3 = bmp; | |
d5ce53b7 | 491 | cmdiocbq->context_un.ndlp = ndlp; |
4cc0e56e | 492 | dd_data->type = TYPE_IOCB; |
a33c4f7b | 493 | dd_data->set_job = job; |
4cc0e56e | 494 | dd_data->context_un.iocb.cmdiocbq = cmdiocbq; |
a33c4f7b JS |
495 | dd_data->context_un.iocb.ndlp = ndlp; |
496 | dd_data->context_un.iocb.rmp = rmp; | |
497 | job->dd_data = dd_data; | |
4cc0e56e JS |
498 | |
499 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { | |
9940b97b JS |
500 | if (lpfc_readl(phba->HCregaddr, &creg_val)) { |
501 | rc = -EIO ; | |
a33c4f7b | 502 | goto free_rmp; |
9940b97b | 503 | } |
4cc0e56e JS |
504 | creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); |
505 | writel(creg_val, phba->HCregaddr); | |
506 | readl(phba->HCregaddr); /* flush */ | |
f1c3b0fc JS |
507 | } |
508 | ||
d439d286 | 509 | iocb_stat = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, 0); |
b5a9b2df JS |
510 | |
511 | if (iocb_stat == IOCB_SUCCESS) { | |
512 | spin_lock_irqsave(&phba->hbalock, flags); | |
513 | /* make sure the I/O had not been completed yet */ | |
514 | if (cmdiocbq->iocb_flag & LPFC_IO_LIBDFC) { | |
515 | /* open up abort window to timeout handler */ | |
1b8d11ab | 516 | cmdiocbq->iocb_flag |= LPFC_IO_CMD_OUTSTANDING; |
b5a9b2df JS |
517 | } |
518 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
4cc0e56e | 519 | return 0; /* done for now */ |
b5a9b2df | 520 | } else if (iocb_stat == IOCB_BUSY) { |
d439d286 | 521 | rc = -EAGAIN; |
b5a9b2df | 522 | } else { |
d439d286 | 523 | rc = -EIO; |
b5a9b2df | 524 | } |
2a9bf3d0 | 525 | |
4cc0e56e | 526 | /* iocb failed so cleanup */ |
b5a9b2df | 527 | job->dd_data = NULL; |
f1c3b0fc | 528 | |
a33c4f7b JS |
529 | free_rmp: |
530 | lpfc_free_bsg_buffers(phba, rmp); | |
531 | free_cmp: | |
532 | lpfc_free_bsg_buffers(phba, cmp); | |
4cc0e56e | 533 | free_bmp: |
a33c4f7b JS |
534 | if (bmp->virt) |
535 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); | |
4cc0e56e | 536 | kfree(bmp); |
a33c4f7b JS |
537 | free_cmdiocbq: |
538 | lpfc_sli_release_iocbq(phba, cmdiocbq); | |
4cc0e56e | 539 | free_ndlp: |
f1c3b0fc | 540 | lpfc_nlp_put(ndlp); |
4cc0e56e JS |
541 | no_ndlp: |
542 | kfree(dd_data); | |
543 | no_dd_data: | |
544 | /* make error code available to userspace */ | |
545 | job->reply->result = rc; | |
546 | job->dd_data = NULL; | |
547 | return rc; | |
548 | } | |
549 | ||
550 | /** | |
551 | * lpfc_bsg_rport_els_cmp - lpfc_bsg_rport_els's completion handler | |
552 | * @phba: Pointer to HBA context object. | |
553 | * @cmdiocbq: Pointer to command iocb. | |
554 | * @rspiocbq: Pointer to response iocb. | |
555 | * | |
556 | * This function is the completion handler for iocbs issued using | |
557 | * lpfc_bsg_rport_els_cmp function. This function is called by the | |
558 | * ring event handler function without any lock held. This function | |
559 | * can be called from both worker thread context and interrupt | |
560 | * context. This function also can be called from other thread which | |
561 | * cleans up the SLI layer objects. | |
3b5dd52a | 562 | * This function copies the contents of the response iocb to the |
4cc0e56e JS |
563 | * response iocb memory object provided by the caller of |
564 | * lpfc_sli_issue_iocb_wait and then wakes up the thread which | |
565 | * sleeps for the iocb completion. | |
566 | **/ | |
567 | static void | |
568 | lpfc_bsg_rport_els_cmp(struct lpfc_hba *phba, | |
569 | struct lpfc_iocbq *cmdiocbq, | |
570 | struct lpfc_iocbq *rspiocbq) | |
571 | { | |
572 | struct bsg_job_data *dd_data; | |
573 | struct fc_bsg_job *job; | |
574 | IOCB_t *rsp; | |
575 | struct lpfc_nodelist *ndlp; | |
a33c4f7b | 576 | struct lpfc_dmabuf *pcmd = NULL, *prsp = NULL; |
4cc0e56e JS |
577 | struct fc_bsg_ctels_reply *els_reply; |
578 | uint8_t *rjt_data; | |
579 | unsigned long flags; | |
a33c4f7b | 580 | unsigned int rsp_size; |
4cc0e56e JS |
581 | int rc = 0; |
582 | ||
4cc0e56e | 583 | dd_data = cmdiocbq->context1; |
a33c4f7b JS |
584 | ndlp = dd_data->context_un.iocb.ndlp; |
585 | cmdiocbq->context1 = ndlp; | |
4cc0e56e | 586 | |
a33c4f7b JS |
587 | /* Determine if job has been aborted */ |
588 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
589 | job = dd_data->set_job; | |
590 | if (job) { | |
591 | /* Prevent timeout handling from trying to abort job */ | |
592 | job->dd_data = NULL; | |
593 | } | |
594 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
4cc0e56e | 595 | |
b5a9b2df JS |
596 | /* Close the timeout handler abort window */ |
597 | spin_lock_irqsave(&phba->hbalock, flags); | |
1b8d11ab | 598 | cmdiocbq->iocb_flag &= ~LPFC_IO_CMD_OUTSTANDING; |
b5a9b2df JS |
599 | spin_unlock_irqrestore(&phba->hbalock, flags); |
600 | ||
4cc0e56e | 601 | rsp = &rspiocbq->iocb; |
a33c4f7b JS |
602 | pcmd = (struct lpfc_dmabuf *)cmdiocbq->context2; |
603 | prsp = (struct lpfc_dmabuf *)pcmd->list.next; | |
4cc0e56e | 604 | |
a33c4f7b JS |
605 | /* Copy the completed job data or determine the job status if job is |
606 | * still active | |
607 | */ | |
4cc0e56e | 608 | |
a33c4f7b JS |
609 | if (job) { |
610 | if (rsp->ulpStatus == IOSTAT_SUCCESS) { | |
611 | rsp_size = rsp->un.elsreq64.bdl.bdeSize; | |
612 | job->reply->reply_payload_rcv_len = | |
613 | sg_copy_from_buffer(job->reply_payload.sg_list, | |
614 | job->reply_payload.sg_cnt, | |
615 | prsp->virt, | |
616 | rsp_size); | |
617 | } else if (rsp->ulpStatus == IOSTAT_LS_RJT) { | |
618 | job->reply->reply_payload_rcv_len = | |
619 | sizeof(struct fc_bsg_ctels_reply); | |
620 | /* LS_RJT data returned in word 4 */ | |
621 | rjt_data = (uint8_t *)&rsp->un.ulpWord[4]; | |
622 | els_reply = &job->reply->reply_data.ctels_reply; | |
623 | els_reply->status = FC_CTELS_STATUS_REJECT; | |
624 | els_reply->rjt_data.action = rjt_data[3]; | |
625 | els_reply->rjt_data.reason_code = rjt_data[2]; | |
626 | els_reply->rjt_data.reason_explanation = rjt_data[1]; | |
627 | els_reply->rjt_data.vendor_unique = rjt_data[0]; | |
628 | } else { | |
629 | rc = -EIO; | |
630 | } | |
631 | } | |
f1c3b0fc | 632 | |
4cc0e56e | 633 | lpfc_nlp_put(ndlp); |
a33c4f7b | 634 | lpfc_els_free_iocb(phba, cmdiocbq); |
4cc0e56e | 635 | kfree(dd_data); |
a33c4f7b JS |
636 | |
637 | /* Complete the job if the job is still active */ | |
638 | ||
639 | if (job) { | |
640 | job->reply->result = rc; | |
641 | job->job_done(job); | |
642 | } | |
4cc0e56e | 643 | return; |
f1c3b0fc JS |
644 | } |
645 | ||
646 | /** | |
647 | * lpfc_bsg_rport_els - send an ELS command from a bsg request | |
648 | * @job: fc_bsg_job to handle | |
3b5dd52a | 649 | **/ |
f1c3b0fc JS |
650 | static int |
651 | lpfc_bsg_rport_els(struct fc_bsg_job *job) | |
652 | { | |
653 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
654 | struct lpfc_hba *phba = vport->phba; | |
655 | struct lpfc_rport_data *rdata = job->rport->dd_data; | |
656 | struct lpfc_nodelist *ndlp = rdata->pnode; | |
f1c3b0fc JS |
657 | uint32_t elscmd; |
658 | uint32_t cmdsize; | |
f1c3b0fc | 659 | struct lpfc_iocbq *cmdiocbq; |
f1c3b0fc | 660 | uint16_t rpi = 0; |
4cc0e56e | 661 | struct bsg_job_data *dd_data; |
b5a9b2df | 662 | unsigned long flags; |
4cc0e56e | 663 | uint32_t creg_val; |
f1c3b0fc JS |
664 | int rc = 0; |
665 | ||
666 | /* in case no data is transferred */ | |
667 | job->reply->reply_payload_rcv_len = 0; | |
668 | ||
a33c4f7b JS |
669 | /* verify the els command is not greater than the |
670 | * maximum ELS transfer size. | |
671 | */ | |
672 | ||
673 | if (job->request_payload.payload_len > FCELSSIZE) { | |
674 | rc = -EINVAL; | |
675 | goto no_dd_data; | |
676 | } | |
677 | ||
4cc0e56e JS |
678 | /* allocate our bsg tracking structure */ |
679 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); | |
680 | if (!dd_data) { | |
681 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
682 | "2735 Failed allocation of dd_data\n"); | |
683 | rc = -ENOMEM; | |
684 | goto no_dd_data; | |
685 | } | |
686 | ||
f1c3b0fc JS |
687 | elscmd = job->request->rqst_data.r_els.els_code; |
688 | cmdsize = job->request_payload.payload_len; | |
a33c4f7b JS |
689 | |
690 | if (!lpfc_nlp_get(ndlp)) { | |
691 | rc = -ENODEV; | |
4cc0e56e | 692 | goto free_dd_data; |
f1c3b0fc JS |
693 | } |
694 | ||
a33c4f7b JS |
695 | /* We will use the allocated dma buffers by prep els iocb for command |
696 | * and response to ensure if the job times out and the request is freed, | |
697 | * we won't be dma into memory that is no longer allocated to for the | |
698 | * request. | |
699 | */ | |
f1c3b0fc | 700 | |
4cc0e56e | 701 | cmdiocbq = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, |
f1c3b0fc | 702 | ndlp->nlp_DID, elscmd); |
f1c3b0fc | 703 | if (!cmdiocbq) { |
4cc0e56e | 704 | rc = -EIO; |
a33c4f7b | 705 | goto release_ndlp; |
f1c3b0fc JS |
706 | } |
707 | ||
a33c4f7b JS |
708 | rpi = ndlp->nlp_rpi; |
709 | ||
710 | /* Transfer the request payload to allocated command dma buffer */ | |
711 | ||
712 | sg_copy_to_buffer(job->request_payload.sg_list, | |
713 | job->request_payload.sg_cnt, | |
714 | ((struct lpfc_dmabuf *)cmdiocbq->context2)->virt, | |
715 | cmdsize); | |
f1c3b0fc | 716 | |
3ef6d24c JS |
717 | if (phba->sli_rev == LPFC_SLI_REV4) |
718 | cmdiocbq->iocb.ulpContext = phba->sli4_hba.rpi_ids[rpi]; | |
719 | else | |
720 | cmdiocbq->iocb.ulpContext = rpi; | |
f1c3b0fc | 721 | cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC; |
4cc0e56e | 722 | cmdiocbq->context1 = dd_data; |
93d1379e | 723 | cmdiocbq->context_un.ndlp = ndlp; |
a33c4f7b | 724 | cmdiocbq->iocb_cmpl = lpfc_bsg_rport_els_cmp; |
4cc0e56e | 725 | dd_data->type = TYPE_IOCB; |
a33c4f7b | 726 | dd_data->set_job = job; |
4cc0e56e | 727 | dd_data->context_un.iocb.cmdiocbq = cmdiocbq; |
4cc0e56e | 728 | dd_data->context_un.iocb.ndlp = ndlp; |
a33c4f7b JS |
729 | dd_data->context_un.iocb.rmp = NULL; |
730 | job->dd_data = dd_data; | |
4cc0e56e JS |
731 | |
732 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { | |
9940b97b JS |
733 | if (lpfc_readl(phba->HCregaddr, &creg_val)) { |
734 | rc = -EIO; | |
735 | goto linkdown_err; | |
736 | } | |
4cc0e56e JS |
737 | creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); |
738 | writel(creg_val, phba->HCregaddr); | |
739 | readl(phba->HCregaddr); /* flush */ | |
740 | } | |
a33c4f7b | 741 | |
4cc0e56e | 742 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, 0); |
a33c4f7b | 743 | |
b5a9b2df JS |
744 | if (rc == IOCB_SUCCESS) { |
745 | spin_lock_irqsave(&phba->hbalock, flags); | |
746 | /* make sure the I/O had not been completed/released */ | |
747 | if (cmdiocbq->iocb_flag & LPFC_IO_LIBDFC) { | |
748 | /* open up abort window to timeout handler */ | |
1b8d11ab | 749 | cmdiocbq->iocb_flag |= LPFC_IO_CMD_OUTSTANDING; |
b5a9b2df JS |
750 | } |
751 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
4cc0e56e | 752 | return 0; /* done for now */ |
b5a9b2df | 753 | } else if (rc == IOCB_BUSY) { |
d439d286 | 754 | rc = -EAGAIN; |
b5a9b2df | 755 | } else { |
d439d286 | 756 | rc = -EIO; |
b5a9b2df | 757 | } |
f1c3b0fc | 758 | |
b5a9b2df JS |
759 | /* iocb failed so cleanup */ |
760 | job->dd_data = NULL; | |
f1c3b0fc | 761 | |
b5a9b2df | 762 | linkdown_err: |
a33c4f7b JS |
763 | cmdiocbq->context1 = ndlp; |
764 | lpfc_els_free_iocb(phba, cmdiocbq); | |
f1c3b0fc | 765 | |
a33c4f7b JS |
766 | release_ndlp: |
767 | lpfc_nlp_put(ndlp); | |
f1c3b0fc | 768 | |
4cc0e56e JS |
769 | free_dd_data: |
770 | kfree(dd_data); | |
f1c3b0fc | 771 | |
4cc0e56e JS |
772 | no_dd_data: |
773 | /* make error code available to userspace */ | |
774 | job->reply->result = rc; | |
775 | job->dd_data = NULL; | |
776 | return rc; | |
f1c3b0fc JS |
777 | } |
778 | ||
3b5dd52a JS |
779 | /** |
780 | * lpfc_bsg_event_free - frees an allocated event structure | |
781 | * @kref: Pointer to a kref. | |
782 | * | |
783 | * Called from kref_put. Back cast the kref into an event structure address. | |
784 | * Free any events to get, delete associated nodes, free any events to see, | |
785 | * free any data then free the event itself. | |
786 | **/ | |
f1c3b0fc | 787 | static void |
4cc0e56e | 788 | lpfc_bsg_event_free(struct kref *kref) |
f1c3b0fc | 789 | { |
4cc0e56e JS |
790 | struct lpfc_bsg_event *evt = container_of(kref, struct lpfc_bsg_event, |
791 | kref); | |
f1c3b0fc JS |
792 | struct event_data *ed; |
793 | ||
794 | list_del(&evt->node); | |
795 | ||
796 | while (!list_empty(&evt->events_to_get)) { | |
797 | ed = list_entry(evt->events_to_get.next, typeof(*ed), node); | |
798 | list_del(&ed->node); | |
799 | kfree(ed->data); | |
800 | kfree(ed); | |
801 | } | |
802 | ||
803 | while (!list_empty(&evt->events_to_see)) { | |
804 | ed = list_entry(evt->events_to_see.next, typeof(*ed), node); | |
805 | list_del(&ed->node); | |
806 | kfree(ed->data); | |
807 | kfree(ed); | |
808 | } | |
809 | ||
a33c4f7b | 810 | kfree(evt->dd_data); |
f1c3b0fc JS |
811 | kfree(evt); |
812 | } | |
813 | ||
3b5dd52a JS |
814 | /** |
815 | * lpfc_bsg_event_ref - increments the kref for an event | |
816 | * @evt: Pointer to an event structure. | |
817 | **/ | |
f1c3b0fc | 818 | static inline void |
4cc0e56e | 819 | lpfc_bsg_event_ref(struct lpfc_bsg_event *evt) |
f1c3b0fc | 820 | { |
4cc0e56e | 821 | kref_get(&evt->kref); |
f1c3b0fc JS |
822 | } |
823 | ||
3b5dd52a JS |
824 | /** |
825 | * lpfc_bsg_event_unref - Uses kref_put to free an event structure | |
826 | * @evt: Pointer to an event structure. | |
827 | **/ | |
f1c3b0fc | 828 | static inline void |
4cc0e56e | 829 | lpfc_bsg_event_unref(struct lpfc_bsg_event *evt) |
f1c3b0fc | 830 | { |
4cc0e56e | 831 | kref_put(&evt->kref, lpfc_bsg_event_free); |
f1c3b0fc JS |
832 | } |
833 | ||
3b5dd52a JS |
834 | /** |
835 | * lpfc_bsg_event_new - allocate and initialize a event structure | |
836 | * @ev_mask: Mask of events. | |
837 | * @ev_reg_id: Event reg id. | |
838 | * @ev_req_id: Event request id. | |
839 | **/ | |
4cc0e56e JS |
840 | static struct lpfc_bsg_event * |
841 | lpfc_bsg_event_new(uint32_t ev_mask, int ev_reg_id, uint32_t ev_req_id) | |
842 | { | |
843 | struct lpfc_bsg_event *evt = kzalloc(sizeof(*evt), GFP_KERNEL); | |
f1c3b0fc | 844 | |
4cc0e56e JS |
845 | if (!evt) |
846 | return NULL; | |
847 | ||
848 | INIT_LIST_HEAD(&evt->events_to_get); | |
849 | INIT_LIST_HEAD(&evt->events_to_see); | |
850 | evt->type_mask = ev_mask; | |
851 | evt->req_id = ev_req_id; | |
852 | evt->reg_id = ev_reg_id; | |
853 | evt->wait_time_stamp = jiffies; | |
a33c4f7b | 854 | evt->dd_data = NULL; |
4cc0e56e JS |
855 | init_waitqueue_head(&evt->wq); |
856 | kref_init(&evt->kref); | |
857 | return evt; | |
858 | } | |
859 | ||
3b5dd52a JS |
860 | /** |
861 | * diag_cmd_data_free - Frees an lpfc dma buffer extension | |
862 | * @phba: Pointer to HBA context object. | |
863 | * @mlist: Pointer to an lpfc dma buffer extension. | |
864 | **/ | |
4cc0e56e | 865 | static int |
3b5dd52a | 866 | diag_cmd_data_free(struct lpfc_hba *phba, struct lpfc_dmabufext *mlist) |
4cc0e56e JS |
867 | { |
868 | struct lpfc_dmabufext *mlast; | |
869 | struct pci_dev *pcidev; | |
870 | struct list_head head, *curr, *next; | |
871 | ||
872 | if ((!mlist) || (!lpfc_is_link_up(phba) && | |
873 | (phba->link_flag & LS_LOOPBACK_MODE))) { | |
874 | return 0; | |
875 | } | |
876 | ||
877 | pcidev = phba->pcidev; | |
878 | list_add_tail(&head, &mlist->dma.list); | |
879 | ||
880 | list_for_each_safe(curr, next, &head) { | |
881 | mlast = list_entry(curr, struct lpfc_dmabufext , dma.list); | |
882 | if (mlast->dma.virt) | |
883 | dma_free_coherent(&pcidev->dev, | |
884 | mlast->size, | |
885 | mlast->dma.virt, | |
886 | mlast->dma.phys); | |
887 | kfree(mlast); | |
888 | } | |
889 | return 0; | |
890 | } | |
f1c3b0fc JS |
891 | |
892 | /** | |
893 | * lpfc_bsg_ct_unsol_event - process an unsolicited CT command | |
894 | * @phba: | |
895 | * @pring: | |
896 | * @piocbq: | |
897 | * | |
898 | * This function is called when an unsolicited CT command is received. It | |
4cc0e56e | 899 | * forwards the event to any processes registered to receive CT events. |
3b5dd52a | 900 | **/ |
4fede78f | 901 | int |
f1c3b0fc JS |
902 | lpfc_bsg_ct_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
903 | struct lpfc_iocbq *piocbq) | |
904 | { | |
905 | uint32_t evt_req_id = 0; | |
906 | uint32_t cmd; | |
f1c3b0fc | 907 | struct lpfc_dmabuf *dmabuf = NULL; |
4cc0e56e | 908 | struct lpfc_bsg_event *evt; |
f1c3b0fc JS |
909 | struct event_data *evt_dat = NULL; |
910 | struct lpfc_iocbq *iocbq; | |
911 | size_t offset = 0; | |
912 | struct list_head head; | |
913 | struct ulp_bde64 *bde; | |
914 | dma_addr_t dma_addr; | |
915 | int i; | |
916 | struct lpfc_dmabuf *bdeBuf1 = piocbq->context2; | |
917 | struct lpfc_dmabuf *bdeBuf2 = piocbq->context3; | |
918 | struct lpfc_hbq_entry *hbqe; | |
919 | struct lpfc_sli_ct_request *ct_req; | |
4cc0e56e | 920 | struct fc_bsg_job *job = NULL; |
a33c4f7b | 921 | struct bsg_job_data *dd_data = NULL; |
4fede78f | 922 | unsigned long flags; |
4cc0e56e | 923 | int size = 0; |
f1c3b0fc JS |
924 | |
925 | INIT_LIST_HEAD(&head); | |
926 | list_add_tail(&head, &piocbq->list); | |
927 | ||
928 | if (piocbq->iocb.ulpBdeCount == 0 || | |
929 | piocbq->iocb.un.cont64[0].tus.f.bdeSize == 0) | |
930 | goto error_ct_unsol_exit; | |
931 | ||
4cc0e56e JS |
932 | if (phba->link_state == LPFC_HBA_ERROR || |
933 | (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE))) | |
934 | goto error_ct_unsol_exit; | |
935 | ||
f1c3b0fc JS |
936 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) |
937 | dmabuf = bdeBuf1; | |
938 | else { | |
939 | dma_addr = getPaddr(piocbq->iocb.un.cont64[0].addrHigh, | |
940 | piocbq->iocb.un.cont64[0].addrLow); | |
941 | dmabuf = lpfc_sli_ringpostbuf_get(phba, pring, dma_addr); | |
942 | } | |
4cc0e56e JS |
943 | if (dmabuf == NULL) |
944 | goto error_ct_unsol_exit; | |
f1c3b0fc JS |
945 | ct_req = (struct lpfc_sli_ct_request *)dmabuf->virt; |
946 | evt_req_id = ct_req->FsType; | |
947 | cmd = ct_req->CommandResponse.bits.CmdRsp; | |
f1c3b0fc JS |
948 | if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) |
949 | lpfc_sli_ringpostbuf_put(phba, pring, dmabuf); | |
950 | ||
4fede78f | 951 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
f1c3b0fc | 952 | list_for_each_entry(evt, &phba->ct_ev_waiters, node) { |
4cc0e56e JS |
953 | if (!(evt->type_mask & FC_REG_CT_EVENT) || |
954 | evt->req_id != evt_req_id) | |
f1c3b0fc JS |
955 | continue; |
956 | ||
4cc0e56e JS |
957 | lpfc_bsg_event_ref(evt); |
958 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
f1c3b0fc | 959 | evt_dat = kzalloc(sizeof(*evt_dat), GFP_KERNEL); |
4cc0e56e JS |
960 | if (evt_dat == NULL) { |
961 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
962 | lpfc_bsg_event_unref(evt); | |
f1c3b0fc JS |
963 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
964 | "2614 Memory allocation failed for " | |
965 | "CT event\n"); | |
966 | break; | |
967 | } | |
968 | ||
f1c3b0fc JS |
969 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
970 | /* take accumulated byte count from the last iocbq */ | |
971 | iocbq = list_entry(head.prev, typeof(*iocbq), list); | |
972 | evt_dat->len = iocbq->iocb.unsli3.rcvsli3.acc_len; | |
973 | } else { | |
974 | list_for_each_entry(iocbq, &head, list) { | |
975 | for (i = 0; i < iocbq->iocb.ulpBdeCount; i++) | |
976 | evt_dat->len += | |
977 | iocbq->iocb.un.cont64[i].tus.f.bdeSize; | |
978 | } | |
979 | } | |
980 | ||
981 | evt_dat->data = kzalloc(evt_dat->len, GFP_KERNEL); | |
4cc0e56e | 982 | if (evt_dat->data == NULL) { |
f1c3b0fc JS |
983 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
984 | "2615 Memory allocation failed for " | |
985 | "CT event data, size %d\n", | |
986 | evt_dat->len); | |
987 | kfree(evt_dat); | |
4fede78f | 988 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
4cc0e56e | 989 | lpfc_bsg_event_unref(evt); |
4fede78f | 990 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
f1c3b0fc JS |
991 | goto error_ct_unsol_exit; |
992 | } | |
993 | ||
994 | list_for_each_entry(iocbq, &head, list) { | |
4cc0e56e | 995 | size = 0; |
f1c3b0fc JS |
996 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
997 | bdeBuf1 = iocbq->context2; | |
998 | bdeBuf2 = iocbq->context3; | |
999 | } | |
1000 | for (i = 0; i < iocbq->iocb.ulpBdeCount; i++) { | |
f1c3b0fc JS |
1001 | if (phba->sli3_options & |
1002 | LPFC_SLI3_HBQ_ENABLED) { | |
1003 | if (i == 0) { | |
1004 | hbqe = (struct lpfc_hbq_entry *) | |
1005 | &iocbq->iocb.un.ulpWord[0]; | |
1006 | size = hbqe->bde.tus.f.bdeSize; | |
1007 | dmabuf = bdeBuf1; | |
1008 | } else if (i == 1) { | |
1009 | hbqe = (struct lpfc_hbq_entry *) | |
1010 | &iocbq->iocb.unsli3. | |
1011 | sli3Words[4]; | |
1012 | size = hbqe->bde.tus.f.bdeSize; | |
1013 | dmabuf = bdeBuf2; | |
1014 | } | |
1015 | if ((offset + size) > evt_dat->len) | |
1016 | size = evt_dat->len - offset; | |
1017 | } else { | |
1018 | size = iocbq->iocb.un.cont64[i]. | |
1019 | tus.f.bdeSize; | |
1020 | bde = &iocbq->iocb.un.cont64[i]; | |
1021 | dma_addr = getPaddr(bde->addrHigh, | |
1022 | bde->addrLow); | |
1023 | dmabuf = lpfc_sli_ringpostbuf_get(phba, | |
1024 | pring, dma_addr); | |
1025 | } | |
1026 | if (!dmabuf) { | |
1027 | lpfc_printf_log(phba, KERN_ERR, | |
1028 | LOG_LIBDFC, "2616 No dmabuf " | |
1029 | "found for iocbq 0x%p\n", | |
1030 | iocbq); | |
1031 | kfree(evt_dat->data); | |
1032 | kfree(evt_dat); | |
4fede78f JS |
1033 | spin_lock_irqsave(&phba->ct_ev_lock, |
1034 | flags); | |
4cc0e56e | 1035 | lpfc_bsg_event_unref(evt); |
4fede78f JS |
1036 | spin_unlock_irqrestore( |
1037 | &phba->ct_ev_lock, flags); | |
f1c3b0fc JS |
1038 | goto error_ct_unsol_exit; |
1039 | } | |
1040 | memcpy((char *)(evt_dat->data) + offset, | |
1041 | dmabuf->virt, size); | |
1042 | offset += size; | |
1043 | if (evt_req_id != SLI_CT_ELX_LOOPBACK && | |
1044 | !(phba->sli3_options & | |
1045 | LPFC_SLI3_HBQ_ENABLED)) { | |
1046 | lpfc_sli_ringpostbuf_put(phba, pring, | |
1047 | dmabuf); | |
1048 | } else { | |
1049 | switch (cmd) { | |
4cc0e56e | 1050 | case ELX_LOOPBACK_DATA: |
1b51197d JS |
1051 | if (phba->sli_rev < |
1052 | LPFC_SLI_REV4) | |
1053 | diag_cmd_data_free(phba, | |
1054 | (struct lpfc_dmabufext | |
1055 | *)dmabuf); | |
4cc0e56e | 1056 | break; |
f1c3b0fc | 1057 | case ELX_LOOPBACK_XRI_SETUP: |
4cc0e56e JS |
1058 | if ((phba->sli_rev == |
1059 | LPFC_SLI_REV2) || | |
1060 | (phba->sli3_options & | |
1061 | LPFC_SLI3_HBQ_ENABLED | |
1062 | )) { | |
1063 | lpfc_in_buf_free(phba, | |
1064 | dmabuf); | |
1065 | } else { | |
f1c3b0fc JS |
1066 | lpfc_post_buffer(phba, |
1067 | pring, | |
1068 | 1); | |
4cc0e56e | 1069 | } |
f1c3b0fc JS |
1070 | break; |
1071 | default: | |
1072 | if (!(phba->sli3_options & | |
1073 | LPFC_SLI3_HBQ_ENABLED)) | |
1074 | lpfc_post_buffer(phba, | |
1075 | pring, | |
1076 | 1); | |
1077 | break; | |
1078 | } | |
1079 | } | |
1080 | } | |
1081 | } | |
1082 | ||
4fede78f | 1083 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
f1c3b0fc JS |
1084 | if (phba->sli_rev == LPFC_SLI_REV4) { |
1085 | evt_dat->immed_dat = phba->ctx_idx; | |
6dd9e31c | 1086 | phba->ctx_idx = (phba->ctx_idx + 1) % LPFC_CT_CTX_MAX; |
589a52d6 | 1087 | /* Provide warning for over-run of the ct_ctx array */ |
6dd9e31c | 1088 | if (phba->ct_ctx[evt_dat->immed_dat].valid == |
589a52d6 JS |
1089 | UNSOL_VALID) |
1090 | lpfc_printf_log(phba, KERN_WARNING, LOG_ELS, | |
1091 | "2717 CT context array entry " | |
1092 | "[%d] over-run: oxid:x%x, " | |
1093 | "sid:x%x\n", phba->ctx_idx, | |
1094 | phba->ct_ctx[ | |
1095 | evt_dat->immed_dat].oxid, | |
1096 | phba->ct_ctx[ | |
1097 | evt_dat->immed_dat].SID); | |
7851fe2c JS |
1098 | phba->ct_ctx[evt_dat->immed_dat].rxid = |
1099 | piocbq->iocb.ulpContext; | |
f1c3b0fc | 1100 | phba->ct_ctx[evt_dat->immed_dat].oxid = |
7851fe2c | 1101 | piocbq->iocb.unsli3.rcvsli3.ox_id; |
f1c3b0fc JS |
1102 | phba->ct_ctx[evt_dat->immed_dat].SID = |
1103 | piocbq->iocb.un.rcvels.remoteID; | |
6dd9e31c | 1104 | phba->ct_ctx[evt_dat->immed_dat].valid = UNSOL_VALID; |
f1c3b0fc JS |
1105 | } else |
1106 | evt_dat->immed_dat = piocbq->iocb.ulpContext; | |
1107 | ||
1108 | evt_dat->type = FC_REG_CT_EVENT; | |
1109 | list_add(&evt_dat->node, &evt->events_to_see); | |
4cc0e56e JS |
1110 | if (evt_req_id == SLI_CT_ELX_LOOPBACK) { |
1111 | wake_up_interruptible(&evt->wq); | |
1112 | lpfc_bsg_event_unref(evt); | |
f1c3b0fc | 1113 | break; |
4cc0e56e JS |
1114 | } |
1115 | ||
1116 | list_move(evt->events_to_see.prev, &evt->events_to_get); | |
4cc0e56e | 1117 | |
a33c4f7b JS |
1118 | dd_data = (struct bsg_job_data *)evt->dd_data; |
1119 | job = dd_data->set_job; | |
1120 | dd_data->set_job = NULL; | |
1121 | lpfc_bsg_event_unref(evt); | |
4cc0e56e JS |
1122 | if (job) { |
1123 | job->reply->reply_payload_rcv_len = size; | |
1124 | /* make error code available to userspace */ | |
1125 | job->reply->result = 0; | |
1126 | job->dd_data = NULL; | |
1127 | /* complete the job back to userspace */ | |
1128 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
1129 | job->job_done(job); | |
1130 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
1131 | } | |
f1c3b0fc | 1132 | } |
4fede78f | 1133 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
f1c3b0fc JS |
1134 | |
1135 | error_ct_unsol_exit: | |
1136 | if (!list_empty(&head)) | |
1137 | list_del(&head); | |
1b51197d JS |
1138 | if ((phba->sli_rev < LPFC_SLI_REV4) && |
1139 | (evt_req_id == SLI_CT_ELX_LOOPBACK)) | |
4cc0e56e | 1140 | return 0; |
4fede78f | 1141 | return 1; |
f1c3b0fc JS |
1142 | } |
1143 | ||
6dd9e31c JS |
1144 | /** |
1145 | * lpfc_bsg_ct_unsol_abort - handler ct abort to management plane | |
1146 | * @phba: Pointer to HBA context object. | |
1147 | * @dmabuf: pointer to a dmabuf that describes the FC sequence | |
1148 | * | |
1149 | * This function handles abort to the CT command toward management plane | |
1150 | * for SLI4 port. | |
1151 | * | |
1152 | * If the pending context of a CT command to management plane present, clears | |
1153 | * such context and returns 1 for handled; otherwise, it returns 0 indicating | |
1154 | * no context exists. | |
1155 | **/ | |
1156 | int | |
1157 | lpfc_bsg_ct_unsol_abort(struct lpfc_hba *phba, struct hbq_dmabuf *dmabuf) | |
1158 | { | |
1159 | struct fc_frame_header fc_hdr; | |
1160 | struct fc_frame_header *fc_hdr_ptr = &fc_hdr; | |
1161 | int ctx_idx, handled = 0; | |
1162 | uint16_t oxid, rxid; | |
1163 | uint32_t sid; | |
1164 | ||
1165 | memcpy(fc_hdr_ptr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header)); | |
1166 | sid = sli4_sid_from_fc_hdr(fc_hdr_ptr); | |
1167 | oxid = be16_to_cpu(fc_hdr_ptr->fh_ox_id); | |
1168 | rxid = be16_to_cpu(fc_hdr_ptr->fh_rx_id); | |
1169 | ||
1170 | for (ctx_idx = 0; ctx_idx < LPFC_CT_CTX_MAX; ctx_idx++) { | |
1171 | if (phba->ct_ctx[ctx_idx].valid != UNSOL_VALID) | |
1172 | continue; | |
1173 | if (phba->ct_ctx[ctx_idx].rxid != rxid) | |
1174 | continue; | |
1175 | if (phba->ct_ctx[ctx_idx].oxid != oxid) | |
1176 | continue; | |
1177 | if (phba->ct_ctx[ctx_idx].SID != sid) | |
1178 | continue; | |
1179 | phba->ct_ctx[ctx_idx].valid = UNSOL_INVALID; | |
1180 | handled = 1; | |
1181 | } | |
1182 | return handled; | |
1183 | } | |
1184 | ||
f1c3b0fc | 1185 | /** |
4cc0e56e | 1186 | * lpfc_bsg_hba_set_event - process a SET_EVENT bsg vendor command |
f1c3b0fc | 1187 | * @job: SET_EVENT fc_bsg_job |
3b5dd52a | 1188 | **/ |
f1c3b0fc | 1189 | static int |
4cc0e56e | 1190 | lpfc_bsg_hba_set_event(struct fc_bsg_job *job) |
f1c3b0fc JS |
1191 | { |
1192 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
1193 | struct lpfc_hba *phba = vport->phba; | |
1194 | struct set_ct_event *event_req; | |
4cc0e56e | 1195 | struct lpfc_bsg_event *evt; |
f1c3b0fc | 1196 | int rc = 0; |
4cc0e56e JS |
1197 | struct bsg_job_data *dd_data = NULL; |
1198 | uint32_t ev_mask; | |
1199 | unsigned long flags; | |
f1c3b0fc JS |
1200 | |
1201 | if (job->request_len < | |
1202 | sizeof(struct fc_bsg_request) + sizeof(struct set_ct_event)) { | |
1203 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1204 | "2612 Received SET_CT_EVENT below minimum " | |
1205 | "size\n"); | |
4cc0e56e JS |
1206 | rc = -EINVAL; |
1207 | goto job_error; | |
1208 | } | |
1209 | ||
f1c3b0fc JS |
1210 | event_req = (struct set_ct_event *) |
1211 | job->request->rqst_data.h_vendor.vendor_cmd; | |
4cc0e56e JS |
1212 | ev_mask = ((uint32_t)(unsigned long)event_req->type_mask & |
1213 | FC_REG_EVENT_MASK); | |
4fede78f | 1214 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
f1c3b0fc JS |
1215 | list_for_each_entry(evt, &phba->ct_ev_waiters, node) { |
1216 | if (evt->reg_id == event_req->ev_reg_id) { | |
4cc0e56e | 1217 | lpfc_bsg_event_ref(evt); |
f1c3b0fc | 1218 | evt->wait_time_stamp = jiffies; |
a33c4f7b | 1219 | dd_data = (struct bsg_job_data *)evt->dd_data; |
f1c3b0fc JS |
1220 | break; |
1221 | } | |
1222 | } | |
4fede78f | 1223 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
f1c3b0fc JS |
1224 | |
1225 | if (&evt->node == &phba->ct_ev_waiters) { | |
1226 | /* no event waiting struct yet - first call */ | |
a33c4f7b JS |
1227 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); |
1228 | if (dd_data == NULL) { | |
1229 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1230 | "2734 Failed allocation of dd_data\n"); | |
1231 | rc = -ENOMEM; | |
1232 | goto job_error; | |
1233 | } | |
4cc0e56e | 1234 | evt = lpfc_bsg_event_new(ev_mask, event_req->ev_reg_id, |
f1c3b0fc JS |
1235 | event_req->ev_req_id); |
1236 | if (!evt) { | |
1237 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1238 | "2617 Failed allocation of event " | |
1239 | "waiter\n"); | |
4cc0e56e JS |
1240 | rc = -ENOMEM; |
1241 | goto job_error; | |
f1c3b0fc | 1242 | } |
a33c4f7b JS |
1243 | dd_data->type = TYPE_EVT; |
1244 | dd_data->set_job = NULL; | |
1245 | dd_data->context_un.evt = evt; | |
1246 | evt->dd_data = (void *)dd_data; | |
4fede78f | 1247 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
f1c3b0fc | 1248 | list_add(&evt->node, &phba->ct_ev_waiters); |
4cc0e56e JS |
1249 | lpfc_bsg_event_ref(evt); |
1250 | evt->wait_time_stamp = jiffies; | |
4fede78f | 1251 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
f1c3b0fc JS |
1252 | } |
1253 | ||
4fede78f | 1254 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
4cc0e56e | 1255 | evt->waiting = 1; |
a33c4f7b | 1256 | dd_data->set_job = job; /* for unsolicited command */ |
4cc0e56e | 1257 | job->dd_data = dd_data; /* for fc transport timeout callback*/ |
4fede78f | 1258 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
4cc0e56e | 1259 | return 0; /* call job done later */ |
f1c3b0fc | 1260 | |
4cc0e56e JS |
1261 | job_error: |
1262 | if (dd_data != NULL) | |
1263 | kfree(dd_data); | |
f1c3b0fc | 1264 | |
4cc0e56e JS |
1265 | job->dd_data = NULL; |
1266 | return rc; | |
f1c3b0fc JS |
1267 | } |
1268 | ||
1269 | /** | |
4cc0e56e | 1270 | * lpfc_bsg_hba_get_event - process a GET_EVENT bsg vendor command |
f1c3b0fc | 1271 | * @job: GET_EVENT fc_bsg_job |
3b5dd52a | 1272 | **/ |
f1c3b0fc | 1273 | static int |
4cc0e56e | 1274 | lpfc_bsg_hba_get_event(struct fc_bsg_job *job) |
f1c3b0fc JS |
1275 | { |
1276 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
1277 | struct lpfc_hba *phba = vport->phba; | |
1278 | struct get_ct_event *event_req; | |
1279 | struct get_ct_event_reply *event_reply; | |
9a803a74 | 1280 | struct lpfc_bsg_event *evt, *evt_next; |
f1c3b0fc | 1281 | struct event_data *evt_dat = NULL; |
4fede78f | 1282 | unsigned long flags; |
4cc0e56e | 1283 | uint32_t rc = 0; |
f1c3b0fc JS |
1284 | |
1285 | if (job->request_len < | |
1286 | sizeof(struct fc_bsg_request) + sizeof(struct get_ct_event)) { | |
1287 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1288 | "2613 Received GET_CT_EVENT request below " | |
1289 | "minimum size\n"); | |
4cc0e56e JS |
1290 | rc = -EINVAL; |
1291 | goto job_error; | |
f1c3b0fc JS |
1292 | } |
1293 | ||
1294 | event_req = (struct get_ct_event *) | |
1295 | job->request->rqst_data.h_vendor.vendor_cmd; | |
1296 | ||
1297 | event_reply = (struct get_ct_event_reply *) | |
1298 | job->reply->reply_data.vendor_reply.vendor_rsp; | |
4fede78f | 1299 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
9a803a74 | 1300 | list_for_each_entry_safe(evt, evt_next, &phba->ct_ev_waiters, node) { |
f1c3b0fc JS |
1301 | if (evt->reg_id == event_req->ev_reg_id) { |
1302 | if (list_empty(&evt->events_to_get)) | |
1303 | break; | |
4cc0e56e | 1304 | lpfc_bsg_event_ref(evt); |
f1c3b0fc JS |
1305 | evt->wait_time_stamp = jiffies; |
1306 | evt_dat = list_entry(evt->events_to_get.prev, | |
1307 | struct event_data, node); | |
1308 | list_del(&evt_dat->node); | |
1309 | break; | |
1310 | } | |
1311 | } | |
4fede78f | 1312 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
f1c3b0fc | 1313 | |
4cc0e56e JS |
1314 | /* The app may continue to ask for event data until it gets |
1315 | * an error indicating that there isn't anymore | |
1316 | */ | |
1317 | if (evt_dat == NULL) { | |
f1c3b0fc JS |
1318 | job->reply->reply_payload_rcv_len = 0; |
1319 | rc = -ENOENT; | |
4cc0e56e | 1320 | goto job_error; |
f1c3b0fc JS |
1321 | } |
1322 | ||
4cc0e56e JS |
1323 | if (evt_dat->len > job->request_payload.payload_len) { |
1324 | evt_dat->len = job->request_payload.payload_len; | |
1325 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1326 | "2618 Truncated event data at %d " | |
1327 | "bytes\n", | |
1328 | job->request_payload.payload_len); | |
f1c3b0fc JS |
1329 | } |
1330 | ||
4cc0e56e | 1331 | event_reply->type = evt_dat->type; |
f1c3b0fc | 1332 | event_reply->immed_data = evt_dat->immed_dat; |
f1c3b0fc JS |
1333 | if (evt_dat->len > 0) |
1334 | job->reply->reply_payload_rcv_len = | |
4cc0e56e JS |
1335 | sg_copy_from_buffer(job->request_payload.sg_list, |
1336 | job->request_payload.sg_cnt, | |
f1c3b0fc JS |
1337 | evt_dat->data, evt_dat->len); |
1338 | else | |
1339 | job->reply->reply_payload_rcv_len = 0; | |
f1c3b0fc | 1340 | |
4cc0e56e | 1341 | if (evt_dat) { |
f1c3b0fc | 1342 | kfree(evt_dat->data); |
4cc0e56e JS |
1343 | kfree(evt_dat); |
1344 | } | |
1345 | ||
4fede78f | 1346 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
4cc0e56e | 1347 | lpfc_bsg_event_unref(evt); |
4fede78f | 1348 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
4cc0e56e JS |
1349 | job->dd_data = NULL; |
1350 | job->reply->result = 0; | |
f1c3b0fc | 1351 | job->job_done(job); |
4cc0e56e | 1352 | return 0; |
f1c3b0fc | 1353 | |
4cc0e56e JS |
1354 | job_error: |
1355 | job->dd_data = NULL; | |
1356 | job->reply->result = rc; | |
f1c3b0fc JS |
1357 | return rc; |
1358 | } | |
1359 | ||
1360 | /** | |
3b5dd52a JS |
1361 | * lpfc_issue_ct_rsp_cmp - lpfc_issue_ct_rsp's completion handler |
1362 | * @phba: Pointer to HBA context object. | |
1363 | * @cmdiocbq: Pointer to command iocb. | |
1364 | * @rspiocbq: Pointer to response iocb. | |
1365 | * | |
1366 | * This function is the completion handler for iocbs issued using | |
1367 | * lpfc_issue_ct_rsp_cmp function. This function is called by the | |
1368 | * ring event handler function without any lock held. This function | |
1369 | * can be called from both worker thread context and interrupt | |
1370 | * context. This function also can be called from other thread which | |
1371 | * cleans up the SLI layer objects. | |
1372 | * This function copy the contents of the response iocb to the | |
1373 | * response iocb memory object provided by the caller of | |
1374 | * lpfc_sli_issue_iocb_wait and then wakes up the thread which | |
1375 | * sleeps for the iocb completion. | |
1376 | **/ | |
1377 | static void | |
1378 | lpfc_issue_ct_rsp_cmp(struct lpfc_hba *phba, | |
1379 | struct lpfc_iocbq *cmdiocbq, | |
1380 | struct lpfc_iocbq *rspiocbq) | |
1381 | { | |
1382 | struct bsg_job_data *dd_data; | |
1383 | struct fc_bsg_job *job; | |
1384 | IOCB_t *rsp; | |
a33c4f7b | 1385 | struct lpfc_dmabuf *bmp, *cmp; |
3b5dd52a JS |
1386 | struct lpfc_nodelist *ndlp; |
1387 | unsigned long flags; | |
1388 | int rc = 0; | |
1389 | ||
a33c4f7b JS |
1390 | dd_data = cmdiocbq->context1; |
1391 | ||
1392 | /* Determine if job has been aborted */ | |
3b5dd52a | 1393 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
a33c4f7b JS |
1394 | job = dd_data->set_job; |
1395 | if (job) { | |
1396 | /* Prevent timeout handling from trying to abort job */ | |
1397 | job->dd_data = NULL; | |
3b5dd52a | 1398 | } |
a33c4f7b | 1399 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
3b5dd52a | 1400 | |
b5a9b2df JS |
1401 | /* Close the timeout handler abort window */ |
1402 | spin_lock_irqsave(&phba->hbalock, flags); | |
1b8d11ab | 1403 | cmdiocbq->iocb_flag &= ~LPFC_IO_CMD_OUTSTANDING; |
b5a9b2df JS |
1404 | spin_unlock_irqrestore(&phba->hbalock, flags); |
1405 | ||
3b5dd52a | 1406 | ndlp = dd_data->context_un.iocb.ndlp; |
a33c4f7b JS |
1407 | cmp = cmdiocbq->context2; |
1408 | bmp = cmdiocbq->context3; | |
1409 | rsp = &rspiocbq->iocb; | |
3b5dd52a | 1410 | |
a33c4f7b | 1411 | /* Copy the completed job data or set the error status */ |
3b5dd52a | 1412 | |
a33c4f7b JS |
1413 | if (job) { |
1414 | if (rsp->ulpStatus) { | |
1415 | if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) { | |
1416 | switch (rsp->un.ulpWord[4] & IOERR_PARAM_MASK) { | |
1417 | case IOERR_SEQUENCE_TIMEOUT: | |
1418 | rc = -ETIMEDOUT; | |
1419 | break; | |
1420 | case IOERR_INVALID_RPI: | |
1421 | rc = -EFAULT; | |
1422 | break; | |
1423 | default: | |
1424 | rc = -EACCES; | |
1425 | break; | |
1426 | } | |
1427 | } else { | |
3b5dd52a | 1428 | rc = -EACCES; |
3b5dd52a | 1429 | } |
a33c4f7b JS |
1430 | } else { |
1431 | job->reply->reply_payload_rcv_len = 0; | |
1432 | } | |
1433 | } | |
3b5dd52a | 1434 | |
a33c4f7b | 1435 | lpfc_free_bsg_buffers(phba, cmp); |
3b5dd52a | 1436 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); |
a33c4f7b | 1437 | kfree(bmp); |
3b5dd52a JS |
1438 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
1439 | lpfc_nlp_put(ndlp); | |
3b5dd52a | 1440 | kfree(dd_data); |
a33c4f7b JS |
1441 | |
1442 | /* Complete the job if the job is still active */ | |
1443 | ||
1444 | if (job) { | |
1445 | job->reply->result = rc; | |
1446 | job->job_done(job); | |
1447 | } | |
3b5dd52a JS |
1448 | return; |
1449 | } | |
1450 | ||
1451 | /** | |
1452 | * lpfc_issue_ct_rsp - issue a ct response | |
1453 | * @phba: Pointer to HBA context object. | |
1454 | * @job: Pointer to the job object. | |
1455 | * @tag: tag index value into the ports context exchange array. | |
1456 | * @bmp: Pointer to a dma buffer descriptor. | |
1457 | * @num_entry: Number of enties in the bde. | |
1458 | **/ | |
f1c3b0fc | 1459 | static int |
3b5dd52a | 1460 | lpfc_issue_ct_rsp(struct lpfc_hba *phba, struct fc_bsg_job *job, uint32_t tag, |
a33c4f7b JS |
1461 | struct lpfc_dmabuf *cmp, struct lpfc_dmabuf *bmp, |
1462 | int num_entry) | |
f1c3b0fc | 1463 | { |
3b5dd52a JS |
1464 | IOCB_t *icmd; |
1465 | struct lpfc_iocbq *ctiocb = NULL; | |
1466 | int rc = 0; | |
1467 | struct lpfc_nodelist *ndlp = NULL; | |
1468 | struct bsg_job_data *dd_data; | |
b5a9b2df | 1469 | unsigned long flags; |
3b5dd52a | 1470 | uint32_t creg_val; |
f1c3b0fc | 1471 | |
3b5dd52a JS |
1472 | /* allocate our bsg tracking structure */ |
1473 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); | |
1474 | if (!dd_data) { | |
1475 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1476 | "2736 Failed allocation of dd_data\n"); | |
1477 | rc = -ENOMEM; | |
1478 | goto no_dd_data; | |
1479 | } | |
f1c3b0fc | 1480 | |
3b5dd52a JS |
1481 | /* Allocate buffer for command iocb */ |
1482 | ctiocb = lpfc_sli_get_iocbq(phba); | |
1483 | if (!ctiocb) { | |
d439d286 | 1484 | rc = -ENOMEM; |
3b5dd52a JS |
1485 | goto no_ctiocb; |
1486 | } | |
1487 | ||
1488 | icmd = &ctiocb->iocb; | |
1489 | icmd->un.xseq64.bdl.ulpIoTag32 = 0; | |
1490 | icmd->un.xseq64.bdl.addrHigh = putPaddrHigh(bmp->phys); | |
1491 | icmd->un.xseq64.bdl.addrLow = putPaddrLow(bmp->phys); | |
1492 | icmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; | |
1493 | icmd->un.xseq64.bdl.bdeSize = (num_entry * sizeof(struct ulp_bde64)); | |
1494 | icmd->un.xseq64.w5.hcsw.Fctl = (LS | LA); | |
1495 | icmd->un.xseq64.w5.hcsw.Dfctl = 0; | |
1496 | icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_SOL_CTL; | |
1497 | icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT; | |
1498 | ||
1499 | /* Fill in rest of iocb */ | |
1500 | icmd->ulpCommand = CMD_XMIT_SEQUENCE64_CX; | |
1501 | icmd->ulpBdeCount = 1; | |
1502 | icmd->ulpLe = 1; | |
1503 | icmd->ulpClass = CLASS3; | |
1504 | if (phba->sli_rev == LPFC_SLI_REV4) { | |
1505 | /* Do not issue unsol response if oxid not marked as valid */ | |
6dd9e31c | 1506 | if (phba->ct_ctx[tag].valid != UNSOL_VALID) { |
3b5dd52a JS |
1507 | rc = IOCB_ERROR; |
1508 | goto issue_ct_rsp_exit; | |
1509 | } | |
7851fe2c JS |
1510 | icmd->ulpContext = phba->ct_ctx[tag].rxid; |
1511 | icmd->unsli3.rcvsli3.ox_id = phba->ct_ctx[tag].oxid; | |
3b5dd52a JS |
1512 | ndlp = lpfc_findnode_did(phba->pport, phba->ct_ctx[tag].SID); |
1513 | if (!ndlp) { | |
1514 | lpfc_printf_log(phba, KERN_WARNING, LOG_ELS, | |
1515 | "2721 ndlp null for oxid %x SID %x\n", | |
1516 | icmd->ulpContext, | |
1517 | phba->ct_ctx[tag].SID); | |
1518 | rc = IOCB_ERROR; | |
1519 | goto issue_ct_rsp_exit; | |
1520 | } | |
589a52d6 JS |
1521 | |
1522 | /* Check if the ndlp is active */ | |
1523 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { | |
a33c4f7b | 1524 | rc = IOCB_ERROR; |
589a52d6 JS |
1525 | goto issue_ct_rsp_exit; |
1526 | } | |
1527 | ||
1528 | /* get a refernece count so the ndlp doesn't go away while | |
1529 | * we respond | |
1530 | */ | |
1531 | if (!lpfc_nlp_get(ndlp)) { | |
a33c4f7b | 1532 | rc = IOCB_ERROR; |
589a52d6 JS |
1533 | goto issue_ct_rsp_exit; |
1534 | } | |
1535 | ||
7851fe2c | 1536 | icmd->un.ulpWord[3] = |
6d368e53 JS |
1537 | phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; |
1538 | ||
3b5dd52a | 1539 | /* The exchange is done, mark the entry as invalid */ |
6dd9e31c | 1540 | phba->ct_ctx[tag].valid = UNSOL_INVALID; |
3b5dd52a JS |
1541 | } else |
1542 | icmd->ulpContext = (ushort) tag; | |
1543 | ||
1544 | icmd->ulpTimeout = phba->fc_ratov * 2; | |
1545 | ||
1546 | /* Xmit CT response on exchange <xid> */ | |
1547 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS, | |
7851fe2c JS |
1548 | "2722 Xmit CT response on exchange x%x Data: x%x x%x x%x\n", |
1549 | icmd->ulpContext, icmd->ulpIoTag, tag, phba->link_state); | |
3b5dd52a JS |
1550 | |
1551 | ctiocb->iocb_cmpl = NULL; | |
1552 | ctiocb->iocb_flag |= LPFC_IO_LIBDFC; | |
1553 | ctiocb->vport = phba->pport; | |
a33c4f7b JS |
1554 | ctiocb->context1 = dd_data; |
1555 | ctiocb->context2 = cmp; | |
3b5dd52a | 1556 | ctiocb->context3 = bmp; |
d5ce53b7 | 1557 | ctiocb->context_un.ndlp = ndlp; |
3b5dd52a | 1558 | ctiocb->iocb_cmpl = lpfc_issue_ct_rsp_cmp; |
a33c4f7b | 1559 | |
3b5dd52a | 1560 | dd_data->type = TYPE_IOCB; |
a33c4f7b | 1561 | dd_data->set_job = job; |
3b5dd52a | 1562 | dd_data->context_un.iocb.cmdiocbq = ctiocb; |
3b5dd52a | 1563 | dd_data->context_un.iocb.ndlp = ndlp; |
a33c4f7b JS |
1564 | dd_data->context_un.iocb.rmp = NULL; |
1565 | job->dd_data = dd_data; | |
3b5dd52a JS |
1566 | |
1567 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { | |
9940b97b JS |
1568 | if (lpfc_readl(phba->HCregaddr, &creg_val)) { |
1569 | rc = -IOCB_ERROR; | |
1570 | goto issue_ct_rsp_exit; | |
1571 | } | |
3b5dd52a JS |
1572 | creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); |
1573 | writel(creg_val, phba->HCregaddr); | |
1574 | readl(phba->HCregaddr); /* flush */ | |
f1c3b0fc | 1575 | } |
4cc0e56e | 1576 | |
3b5dd52a JS |
1577 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0); |
1578 | ||
b5a9b2df JS |
1579 | if (rc == IOCB_SUCCESS) { |
1580 | spin_lock_irqsave(&phba->hbalock, flags); | |
1581 | /* make sure the I/O had not been completed/released */ | |
1582 | if (ctiocb->iocb_flag & LPFC_IO_LIBDFC) { | |
1583 | /* open up abort window to timeout handler */ | |
1b8d11ab | 1584 | ctiocb->iocb_flag |= LPFC_IO_CMD_OUTSTANDING; |
b5a9b2df JS |
1585 | } |
1586 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
3b5dd52a | 1587 | return 0; /* done for now */ |
b5a9b2df JS |
1588 | } |
1589 | ||
1590 | /* iocb failed so cleanup */ | |
1591 | job->dd_data = NULL; | |
3b5dd52a JS |
1592 | |
1593 | issue_ct_rsp_exit: | |
1594 | lpfc_sli_release_iocbq(phba, ctiocb); | |
1595 | no_ctiocb: | |
1596 | kfree(dd_data); | |
1597 | no_dd_data: | |
4cc0e56e | 1598 | return rc; |
f1c3b0fc JS |
1599 | } |
1600 | ||
1601 | /** | |
3b5dd52a JS |
1602 | * lpfc_bsg_send_mgmt_rsp - process a SEND_MGMT_RESP bsg vendor command |
1603 | * @job: SEND_MGMT_RESP fc_bsg_job | |
1604 | **/ | |
1605 | static int | |
1606 | lpfc_bsg_send_mgmt_rsp(struct fc_bsg_job *job) | |
f1c3b0fc | 1607 | { |
3b5dd52a JS |
1608 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; |
1609 | struct lpfc_hba *phba = vport->phba; | |
1610 | struct send_mgmt_resp *mgmt_resp = (struct send_mgmt_resp *) | |
1611 | job->request->rqst_data.h_vendor.vendor_cmd; | |
1612 | struct ulp_bde64 *bpl; | |
a33c4f7b JS |
1613 | struct lpfc_dmabuf *bmp = NULL, *cmp = NULL; |
1614 | int bpl_entries; | |
3b5dd52a JS |
1615 | uint32_t tag = mgmt_resp->tag; |
1616 | unsigned long reqbfrcnt = | |
1617 | (unsigned long)job->request_payload.payload_len; | |
1618 | int rc = 0; | |
f1c3b0fc | 1619 | |
3b5dd52a JS |
1620 | /* in case no data is transferred */ |
1621 | job->reply->reply_payload_rcv_len = 0; | |
1622 | ||
1623 | if (!reqbfrcnt || (reqbfrcnt > (80 * BUF_SZ_4K))) { | |
1624 | rc = -ERANGE; | |
1625 | goto send_mgmt_rsp_exit; | |
1626 | } | |
1627 | ||
1628 | bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
1629 | if (!bmp) { | |
1630 | rc = -ENOMEM; | |
1631 | goto send_mgmt_rsp_exit; | |
1632 | } | |
1633 | ||
1634 | bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys); | |
1635 | if (!bmp->virt) { | |
1636 | rc = -ENOMEM; | |
1637 | goto send_mgmt_rsp_free_bmp; | |
1638 | } | |
1639 | ||
1640 | INIT_LIST_HEAD(&bmp->list); | |
1641 | bpl = (struct ulp_bde64 *) bmp->virt; | |
a33c4f7b JS |
1642 | bpl_entries = (LPFC_BPL_SIZE/sizeof(struct ulp_bde64)); |
1643 | cmp = lpfc_alloc_bsg_buffers(phba, job->request_payload.payload_len, | |
1644 | 1, bpl, &bpl_entries); | |
1645 | if (!cmp) { | |
1646 | rc = -ENOMEM; | |
1647 | goto send_mgmt_rsp_free_bmp; | |
f1c3b0fc | 1648 | } |
a33c4f7b JS |
1649 | lpfc_bsg_copy_data(cmp, &job->request_payload, |
1650 | job->request_payload.payload_len, 1); | |
f1c3b0fc | 1651 | |
a33c4f7b | 1652 | rc = lpfc_issue_ct_rsp(phba, job, tag, cmp, bmp, bpl_entries); |
3b5dd52a JS |
1653 | |
1654 | if (rc == IOCB_SUCCESS) | |
1655 | return 0; /* done for now */ | |
1656 | ||
3b5dd52a | 1657 | rc = -EACCES; |
a33c4f7b JS |
1658 | |
1659 | lpfc_free_bsg_buffers(phba, cmp); | |
3b5dd52a JS |
1660 | |
1661 | send_mgmt_rsp_free_bmp: | |
a33c4f7b JS |
1662 | if (bmp->virt) |
1663 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); | |
3b5dd52a JS |
1664 | kfree(bmp); |
1665 | send_mgmt_rsp_exit: | |
1666 | /* make error code available to userspace */ | |
1667 | job->reply->result = rc; | |
1668 | job->dd_data = NULL; | |
f1c3b0fc JS |
1669 | return rc; |
1670 | } | |
1671 | ||
1672 | /** | |
7ad20aa9 JS |
1673 | * lpfc_bsg_diag_mode_enter - process preparing into device diag loopback mode |
1674 | * @phba: Pointer to HBA context object. | |
7ad20aa9 JS |
1675 | * |
1676 | * This function is responsible for preparing driver for diag loopback | |
1677 | * on device. | |
1678 | */ | |
1679 | static int | |
88a2cfbb | 1680 | lpfc_bsg_diag_mode_enter(struct lpfc_hba *phba) |
7ad20aa9 JS |
1681 | { |
1682 | struct lpfc_vport **vports; | |
1683 | struct Scsi_Host *shost; | |
1684 | struct lpfc_sli *psli; | |
1685 | struct lpfc_sli_ring *pring; | |
1686 | int i = 0; | |
1687 | ||
1688 | psli = &phba->sli; | |
1689 | if (!psli) | |
1690 | return -ENODEV; | |
1691 | ||
1692 | pring = &psli->ring[LPFC_FCP_RING]; | |
1693 | if (!pring) | |
1694 | return -ENODEV; | |
1695 | ||
1696 | if ((phba->link_state == LPFC_HBA_ERROR) || | |
1697 | (psli->sli_flag & LPFC_BLOCK_MGMT_IO) || | |
1698 | (!(psli->sli_flag & LPFC_SLI_ACTIVE))) | |
1699 | return -EACCES; | |
1700 | ||
1701 | vports = lpfc_create_vport_work_array(phba); | |
1702 | if (vports) { | |
1703 | for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) { | |
1704 | shost = lpfc_shost_from_vport(vports[i]); | |
1705 | scsi_block_requests(shost); | |
1706 | } | |
1707 | lpfc_destroy_vport_work_array(phba, vports); | |
1708 | } else { | |
1709 | shost = lpfc_shost_from_vport(phba->pport); | |
1710 | scsi_block_requests(shost); | |
1711 | } | |
1712 | ||
0e9bb8d7 | 1713 | while (!list_empty(&pring->txcmplq)) { |
7ad20aa9 JS |
1714 | if (i++ > 500) /* wait up to 5 seconds */ |
1715 | break; | |
1716 | msleep(10); | |
1717 | } | |
1718 | return 0; | |
1719 | } | |
1720 | ||
1721 | /** | |
1722 | * lpfc_bsg_diag_mode_exit - exit process from device diag loopback mode | |
1723 | * @phba: Pointer to HBA context object. | |
7ad20aa9 JS |
1724 | * |
1725 | * This function is responsible for driver exit processing of setting up | |
1726 | * diag loopback mode on device. | |
1727 | */ | |
1728 | static void | |
1729 | lpfc_bsg_diag_mode_exit(struct lpfc_hba *phba) | |
1730 | { | |
1731 | struct Scsi_Host *shost; | |
1732 | struct lpfc_vport **vports; | |
1733 | int i; | |
1734 | ||
1735 | vports = lpfc_create_vport_work_array(phba); | |
1736 | if (vports) { | |
1737 | for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) { | |
1738 | shost = lpfc_shost_from_vport(vports[i]); | |
1739 | scsi_unblock_requests(shost); | |
1740 | } | |
1741 | lpfc_destroy_vport_work_array(phba, vports); | |
1742 | } else { | |
1743 | shost = lpfc_shost_from_vport(phba->pport); | |
1744 | scsi_unblock_requests(shost); | |
1745 | } | |
1746 | return; | |
1747 | } | |
1748 | ||
1749 | /** | |
1750 | * lpfc_sli3_bsg_diag_loopback_mode - process an sli3 bsg vendor command | |
1751 | * @phba: Pointer to HBA context object. | |
3b5dd52a | 1752 | * @job: LPFC_BSG_VENDOR_DIAG_MODE |
f1c3b0fc | 1753 | * |
7ad20aa9 JS |
1754 | * This function is responsible for placing an sli3 port into diagnostic |
1755 | * loopback mode in order to perform a diagnostic loopback test. | |
3b5dd52a JS |
1756 | * All new scsi requests are blocked, a small delay is used to allow the |
1757 | * scsi requests to complete then the link is brought down. If the link is | |
1758 | * is placed in loopback mode then scsi requests are again allowed | |
1759 | * so the scsi mid-layer doesn't give up on the port. | |
1760 | * All of this is done in-line. | |
f1c3b0fc | 1761 | */ |
3b5dd52a | 1762 | static int |
7ad20aa9 | 1763 | lpfc_sli3_bsg_diag_loopback_mode(struct lpfc_hba *phba, struct fc_bsg_job *job) |
f1c3b0fc | 1764 | { |
3b5dd52a | 1765 | struct diag_mode_set *loopback_mode; |
3b5dd52a JS |
1766 | uint32_t link_flags; |
1767 | uint32_t timeout; | |
1b51197d | 1768 | LPFC_MBOXQ_t *pmboxq = NULL; |
b76f2dc9 | 1769 | int mbxstatus = MBX_SUCCESS; |
3b5dd52a JS |
1770 | int i = 0; |
1771 | int rc = 0; | |
f1c3b0fc | 1772 | |
3b5dd52a JS |
1773 | /* no data to return just the return code */ |
1774 | job->reply->reply_payload_rcv_len = 0; | |
1775 | ||
7ad20aa9 JS |
1776 | if (job->request_len < sizeof(struct fc_bsg_request) + |
1777 | sizeof(struct diag_mode_set)) { | |
3b5dd52a | 1778 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
7ad20aa9 JS |
1779 | "2738 Received DIAG MODE request size:%d " |
1780 | "below the minimum size:%d\n", | |
1781 | job->request_len, | |
1782 | (int)(sizeof(struct fc_bsg_request) + | |
1783 | sizeof(struct diag_mode_set))); | |
3b5dd52a JS |
1784 | rc = -EINVAL; |
1785 | goto job_error; | |
1786 | } | |
1787 | ||
88a2cfbb | 1788 | rc = lpfc_bsg_diag_mode_enter(phba); |
7ad20aa9 JS |
1789 | if (rc) |
1790 | goto job_error; | |
1791 | ||
1792 | /* bring the link to diagnostic mode */ | |
3b5dd52a JS |
1793 | loopback_mode = (struct diag_mode_set *) |
1794 | job->request->rqst_data.h_vendor.vendor_cmd; | |
1795 | link_flags = loopback_mode->type; | |
515e0aa2 | 1796 | timeout = loopback_mode->timeout * 100; |
3b5dd52a | 1797 | |
3b5dd52a JS |
1798 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
1799 | if (!pmboxq) { | |
1800 | rc = -ENOMEM; | |
7ad20aa9 | 1801 | goto loopback_mode_exit; |
3b5dd52a | 1802 | } |
3b5dd52a JS |
1803 | memset((void *)pmboxq, 0, sizeof(LPFC_MBOXQ_t)); |
1804 | pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK; | |
1805 | pmboxq->u.mb.mbxOwner = OWN_HOST; | |
1806 | ||
1807 | mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO); | |
1808 | ||
1809 | if ((mbxstatus == MBX_SUCCESS) && (pmboxq->u.mb.mbxStatus == 0)) { | |
1810 | /* wait for link down before proceeding */ | |
1811 | i = 0; | |
1812 | while (phba->link_state != LPFC_LINK_DOWN) { | |
1813 | if (i++ > timeout) { | |
1814 | rc = -ETIMEDOUT; | |
1815 | goto loopback_mode_exit; | |
1816 | } | |
3b5dd52a JS |
1817 | msleep(10); |
1818 | } | |
1819 | ||
1820 | memset((void *)pmboxq, 0, sizeof(LPFC_MBOXQ_t)); | |
1821 | if (link_flags == INTERNAL_LOOP_BACK) | |
1822 | pmboxq->u.mb.un.varInitLnk.link_flags = FLAGS_LOCAL_LB; | |
1823 | else | |
1824 | pmboxq->u.mb.un.varInitLnk.link_flags = | |
1825 | FLAGS_TOPOLOGY_MODE_LOOP; | |
1826 | ||
1827 | pmboxq->u.mb.mbxCommand = MBX_INIT_LINK; | |
1828 | pmboxq->u.mb.mbxOwner = OWN_HOST; | |
1829 | ||
1830 | mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, | |
1831 | LPFC_MBOX_TMO); | |
1832 | ||
1833 | if ((mbxstatus != MBX_SUCCESS) || (pmboxq->u.mb.mbxStatus)) | |
1834 | rc = -ENODEV; | |
1835 | else { | |
1b51197d | 1836 | spin_lock_irq(&phba->hbalock); |
3b5dd52a | 1837 | phba->link_flag |= LS_LOOPBACK_MODE; |
1b51197d | 1838 | spin_unlock_irq(&phba->hbalock); |
3b5dd52a JS |
1839 | /* wait for the link attention interrupt */ |
1840 | msleep(100); | |
1841 | ||
1842 | i = 0; | |
1843 | while (phba->link_state != LPFC_HBA_READY) { | |
1844 | if (i++ > timeout) { | |
1845 | rc = -ETIMEDOUT; | |
1846 | break; | |
1847 | } | |
1848 | ||
1849 | msleep(10); | |
1850 | } | |
1851 | } | |
1852 | ||
1853 | } else | |
1854 | rc = -ENODEV; | |
1855 | ||
1856 | loopback_mode_exit: | |
7ad20aa9 | 1857 | lpfc_bsg_diag_mode_exit(phba); |
3b5dd52a JS |
1858 | |
1859 | /* | |
1860 | * Let SLI layer release mboxq if mbox command completed after timeout. | |
1861 | */ | |
1b51197d | 1862 | if (pmboxq && mbxstatus != MBX_TIMEOUT) |
3b5dd52a JS |
1863 | mempool_free(pmboxq, phba->mbox_mem_pool); |
1864 | ||
1865 | job_error: | |
1866 | /* make error code available to userspace */ | |
1867 | job->reply->result = rc; | |
1868 | /* complete the job back to userspace if no error */ | |
1869 | if (rc == 0) | |
1870 | job->job_done(job); | |
1871 | return rc; | |
1872 | } | |
1873 | ||
1874 | /** | |
7ad20aa9 JS |
1875 | * lpfc_sli4_bsg_set_link_diag_state - set sli4 link diag state |
1876 | * @phba: Pointer to HBA context object. | |
1877 | * @diag: Flag for set link to diag or nomral operation state. | |
3b5dd52a | 1878 | * |
7ad20aa9 JS |
1879 | * This function is responsible for issuing a sli4 mailbox command for setting |
1880 | * link to either diag state or normal operation state. | |
1881 | */ | |
1882 | static int | |
1883 | lpfc_sli4_bsg_set_link_diag_state(struct lpfc_hba *phba, uint32_t diag) | |
3b5dd52a | 1884 | { |
7ad20aa9 JS |
1885 | LPFC_MBOXQ_t *pmboxq; |
1886 | struct lpfc_mbx_set_link_diag_state *link_diag_state; | |
1887 | uint32_t req_len, alloc_len; | |
1888 | int mbxstatus = MBX_SUCCESS, rc; | |
3b5dd52a | 1889 | |
7ad20aa9 JS |
1890 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
1891 | if (!pmboxq) | |
d439d286 | 1892 | return -ENOMEM; |
3b5dd52a | 1893 | |
7ad20aa9 JS |
1894 | req_len = (sizeof(struct lpfc_mbx_set_link_diag_state) - |
1895 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
1896 | alloc_len = lpfc_sli4_config(phba, pmboxq, LPFC_MBOX_SUBSYSTEM_FCOE, | |
1897 | LPFC_MBOX_OPCODE_FCOE_LINK_DIAG_STATE, | |
1898 | req_len, LPFC_SLI4_MBX_EMBED); | |
1899 | if (alloc_len != req_len) { | |
1900 | rc = -ENOMEM; | |
1901 | goto link_diag_state_set_out; | |
3b5dd52a | 1902 | } |
1b51197d JS |
1903 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
1904 | "3128 Set link to diagnostic state:x%x (x%x/x%x)\n", | |
1905 | diag, phba->sli4_hba.lnk_info.lnk_tp, | |
1906 | phba->sli4_hba.lnk_info.lnk_no); | |
1907 | ||
7ad20aa9 | 1908 | link_diag_state = &pmboxq->u.mqe.un.link_diag_state; |
9731592b JS |
1909 | bf_set(lpfc_mbx_set_diag_state_diag_bit_valid, &link_diag_state->u.req, |
1910 | LPFC_DIAG_STATE_DIAG_BIT_VALID_CHANGE); | |
7ad20aa9 | 1911 | bf_set(lpfc_mbx_set_diag_state_link_num, &link_diag_state->u.req, |
1b51197d | 1912 | phba->sli4_hba.lnk_info.lnk_no); |
7ad20aa9 | 1913 | bf_set(lpfc_mbx_set_diag_state_link_type, &link_diag_state->u.req, |
1b51197d | 1914 | phba->sli4_hba.lnk_info.lnk_tp); |
7ad20aa9 JS |
1915 | if (diag) |
1916 | bf_set(lpfc_mbx_set_diag_state_diag, | |
1917 | &link_diag_state->u.req, 1); | |
1918 | else | |
1919 | bf_set(lpfc_mbx_set_diag_state_diag, | |
1920 | &link_diag_state->u.req, 0); | |
3b5dd52a | 1921 | |
7ad20aa9 | 1922 | mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO); |
3b5dd52a | 1923 | |
7ad20aa9 JS |
1924 | if ((mbxstatus == MBX_SUCCESS) && (pmboxq->u.mb.mbxStatus == 0)) |
1925 | rc = 0; | |
1926 | else | |
1927 | rc = -ENODEV; | |
3b5dd52a | 1928 | |
7ad20aa9 JS |
1929 | link_diag_state_set_out: |
1930 | if (pmboxq && (mbxstatus != MBX_TIMEOUT)) | |
1931 | mempool_free(pmboxq, phba->mbox_mem_pool); | |
3b5dd52a | 1932 | |
7ad20aa9 | 1933 | return rc; |
3b5dd52a JS |
1934 | } |
1935 | ||
1b51197d JS |
1936 | /** |
1937 | * lpfc_sli4_bsg_set_internal_loopback - set sli4 internal loopback diagnostic | |
1938 | * @phba: Pointer to HBA context object. | |
1939 | * | |
1940 | * This function is responsible for issuing a sli4 mailbox command for setting | |
1941 | * up internal loopback diagnostic. | |
1942 | */ | |
1943 | static int | |
1944 | lpfc_sli4_bsg_set_internal_loopback(struct lpfc_hba *phba) | |
1945 | { | |
1946 | LPFC_MBOXQ_t *pmboxq; | |
1947 | uint32_t req_len, alloc_len; | |
1948 | struct lpfc_mbx_set_link_diag_loopback *link_diag_loopback; | |
1949 | int mbxstatus = MBX_SUCCESS, rc = 0; | |
1950 | ||
1951 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
1952 | if (!pmboxq) | |
1953 | return -ENOMEM; | |
1954 | req_len = (sizeof(struct lpfc_mbx_set_link_diag_loopback) - | |
1955 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
1956 | alloc_len = lpfc_sli4_config(phba, pmboxq, LPFC_MBOX_SUBSYSTEM_FCOE, | |
1957 | LPFC_MBOX_OPCODE_FCOE_LINK_DIAG_LOOPBACK, | |
1958 | req_len, LPFC_SLI4_MBX_EMBED); | |
1959 | if (alloc_len != req_len) { | |
1960 | mempool_free(pmboxq, phba->mbox_mem_pool); | |
1961 | return -ENOMEM; | |
1962 | } | |
1963 | link_diag_loopback = &pmboxq->u.mqe.un.link_diag_loopback; | |
1964 | bf_set(lpfc_mbx_set_diag_state_link_num, | |
1965 | &link_diag_loopback->u.req, phba->sli4_hba.lnk_info.lnk_no); | |
1966 | bf_set(lpfc_mbx_set_diag_state_link_type, | |
1967 | &link_diag_loopback->u.req, phba->sli4_hba.lnk_info.lnk_tp); | |
1968 | bf_set(lpfc_mbx_set_diag_lpbk_type, &link_diag_loopback->u.req, | |
3ef6d24c | 1969 | LPFC_DIAG_LOOPBACK_TYPE_INTERNAL); |
1b51197d JS |
1970 | |
1971 | mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO); | |
1972 | if ((mbxstatus != MBX_SUCCESS) || (pmboxq->u.mb.mbxStatus)) { | |
1973 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1974 | "3127 Failed setup loopback mode mailbox " | |
1975 | "command, rc:x%x, status:x%x\n", mbxstatus, | |
1976 | pmboxq->u.mb.mbxStatus); | |
1977 | rc = -ENODEV; | |
1978 | } | |
1979 | if (pmboxq && (mbxstatus != MBX_TIMEOUT)) | |
1980 | mempool_free(pmboxq, phba->mbox_mem_pool); | |
1981 | return rc; | |
1982 | } | |
1983 | ||
1984 | /** | |
1985 | * lpfc_sli4_diag_fcport_reg_setup - setup port registrations for diagnostic | |
1986 | * @phba: Pointer to HBA context object. | |
1987 | * | |
1988 | * This function set up SLI4 FC port registrations for diagnostic run, which | |
1989 | * includes all the rpis, vfi, and also vpi. | |
1990 | */ | |
1991 | static int | |
1992 | lpfc_sli4_diag_fcport_reg_setup(struct lpfc_hba *phba) | |
1993 | { | |
1994 | int rc; | |
1995 | ||
1996 | if (phba->pport->fc_flag & FC_VFI_REGISTERED) { | |
1997 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1998 | "3136 Port still had vfi registered: " | |
1999 | "mydid:x%x, fcfi:%d, vfi:%d, vpi:%d\n", | |
2000 | phba->pport->fc_myDID, phba->fcf.fcfi, | |
2001 | phba->sli4_hba.vfi_ids[phba->pport->vfi], | |
2002 | phba->vpi_ids[phba->pport->vpi]); | |
2003 | return -EINVAL; | |
2004 | } | |
2005 | rc = lpfc_issue_reg_vfi(phba->pport); | |
2006 | return rc; | |
2007 | } | |
2008 | ||
3b5dd52a | 2009 | /** |
7ad20aa9 JS |
2010 | * lpfc_sli4_bsg_diag_loopback_mode - process an sli4 bsg vendor command |
2011 | * @phba: Pointer to HBA context object. | |
2012 | * @job: LPFC_BSG_VENDOR_DIAG_MODE | |
3b5dd52a | 2013 | * |
7ad20aa9 JS |
2014 | * This function is responsible for placing an sli4 port into diagnostic |
2015 | * loopback mode in order to perform a diagnostic loopback test. | |
2016 | */ | |
2017 | static int | |
2018 | lpfc_sli4_bsg_diag_loopback_mode(struct lpfc_hba *phba, struct fc_bsg_job *job) | |
3b5dd52a | 2019 | { |
7ad20aa9 | 2020 | struct diag_mode_set *loopback_mode; |
1b51197d JS |
2021 | uint32_t link_flags, timeout; |
2022 | int i, rc = 0; | |
3b5dd52a | 2023 | |
7ad20aa9 JS |
2024 | /* no data to return just the return code */ |
2025 | job->reply->reply_payload_rcv_len = 0; | |
3b5dd52a | 2026 | |
7ad20aa9 JS |
2027 | if (job->request_len < sizeof(struct fc_bsg_request) + |
2028 | sizeof(struct diag_mode_set)) { | |
2029 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
2030 | "3011 Received DIAG MODE request size:%d " | |
2031 | "below the minimum size:%d\n", | |
2032 | job->request_len, | |
2033 | (int)(sizeof(struct fc_bsg_request) + | |
2034 | sizeof(struct diag_mode_set))); | |
2035 | rc = -EINVAL; | |
2036 | goto job_error; | |
2037 | } | |
3b5dd52a | 2038 | |
88a2cfbb | 2039 | rc = lpfc_bsg_diag_mode_enter(phba); |
7ad20aa9 JS |
2040 | if (rc) |
2041 | goto job_error; | |
2042 | ||
1b51197d JS |
2043 | /* indicate we are in loobpack diagnostic mode */ |
2044 | spin_lock_irq(&phba->hbalock); | |
2045 | phba->link_flag |= LS_LOOPBACK_MODE; | |
2046 | spin_unlock_irq(&phba->hbalock); | |
2047 | ||
2048 | /* reset port to start frome scratch */ | |
2049 | rc = lpfc_selective_reset(phba); | |
2050 | if (rc) | |
2051 | goto job_error; | |
2052 | ||
7ad20aa9 | 2053 | /* bring the link to diagnostic mode */ |
1b51197d JS |
2054 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
2055 | "3129 Bring link to diagnostic state.\n"); | |
7ad20aa9 JS |
2056 | loopback_mode = (struct diag_mode_set *) |
2057 | job->request->rqst_data.h_vendor.vendor_cmd; | |
2058 | link_flags = loopback_mode->type; | |
2059 | timeout = loopback_mode->timeout * 100; | |
2060 | ||
2061 | rc = lpfc_sli4_bsg_set_link_diag_state(phba, 1); | |
1b51197d JS |
2062 | if (rc) { |
2063 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
2064 | "3130 Failed to bring link to diagnostic " | |
2065 | "state, rc:x%x\n", rc); | |
7ad20aa9 | 2066 | goto loopback_mode_exit; |
1b51197d | 2067 | } |
7ad20aa9 JS |
2068 | |
2069 | /* wait for link down before proceeding */ | |
2070 | i = 0; | |
2071 | while (phba->link_state != LPFC_LINK_DOWN) { | |
2072 | if (i++ > timeout) { | |
2073 | rc = -ETIMEDOUT; | |
1b51197d JS |
2074 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
2075 | "3131 Timeout waiting for link to " | |
2076 | "diagnostic mode, timeout:%d ms\n", | |
2077 | timeout * 10); | |
7ad20aa9 JS |
2078 | goto loopback_mode_exit; |
2079 | } | |
2080 | msleep(10); | |
3b5dd52a | 2081 | } |
1b51197d | 2082 | |
7ad20aa9 | 2083 | /* set up loopback mode */ |
1b51197d JS |
2084 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
2085 | "3132 Set up loopback mode:x%x\n", link_flags); | |
2086 | ||
2087 | if (link_flags == INTERNAL_LOOP_BACK) | |
2088 | rc = lpfc_sli4_bsg_set_internal_loopback(phba); | |
2089 | else if (link_flags == EXTERNAL_LOOP_BACK) | |
2090 | rc = lpfc_hba_init_link_fc_topology(phba, | |
2091 | FLAGS_TOPOLOGY_MODE_PT_PT, | |
2092 | MBX_NOWAIT); | |
2093 | else { | |
2094 | rc = -EINVAL; | |
2095 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, | |
2096 | "3141 Loopback mode:x%x not supported\n", | |
2097 | link_flags); | |
7ad20aa9 JS |
2098 | goto loopback_mode_exit; |
2099 | } | |
7ad20aa9 | 2100 | |
1b51197d | 2101 | if (!rc) { |
7ad20aa9 JS |
2102 | /* wait for the link attention interrupt */ |
2103 | msleep(100); | |
2104 | i = 0; | |
1b51197d JS |
2105 | while (phba->link_state < LPFC_LINK_UP) { |
2106 | if (i++ > timeout) { | |
2107 | rc = -ETIMEDOUT; | |
2108 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
2109 | "3137 Timeout waiting for link up " | |
2110 | "in loopback mode, timeout:%d ms\n", | |
2111 | timeout * 10); | |
2112 | break; | |
2113 | } | |
2114 | msleep(10); | |
2115 | } | |
2116 | } | |
2117 | ||
2118 | /* port resource registration setup for loopback diagnostic */ | |
2119 | if (!rc) { | |
2120 | /* set up a none zero myDID for loopback test */ | |
2121 | phba->pport->fc_myDID = 1; | |
2122 | rc = lpfc_sli4_diag_fcport_reg_setup(phba); | |
2123 | } else | |
2124 | goto loopback_mode_exit; | |
2125 | ||
2126 | if (!rc) { | |
2127 | /* wait for the port ready */ | |
2128 | msleep(100); | |
2129 | i = 0; | |
7ad20aa9 JS |
2130 | while (phba->link_state != LPFC_HBA_READY) { |
2131 | if (i++ > timeout) { | |
2132 | rc = -ETIMEDOUT; | |
1b51197d JS |
2133 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
2134 | "3133 Timeout waiting for port " | |
2135 | "loopback mode ready, timeout:%d ms\n", | |
2136 | timeout * 10); | |
7ad20aa9 JS |
2137 | break; |
2138 | } | |
2139 | msleep(10); | |
2140 | } | |
2141 | } | |
2142 | ||
2143 | loopback_mode_exit: | |
1b51197d JS |
2144 | /* clear loopback diagnostic mode */ |
2145 | if (rc) { | |
2146 | spin_lock_irq(&phba->hbalock); | |
2147 | phba->link_flag &= ~LS_LOOPBACK_MODE; | |
2148 | spin_unlock_irq(&phba->hbalock); | |
2149 | } | |
7ad20aa9 JS |
2150 | lpfc_bsg_diag_mode_exit(phba); |
2151 | ||
7ad20aa9 JS |
2152 | job_error: |
2153 | /* make error code available to userspace */ | |
2154 | job->reply->result = rc; | |
2155 | /* complete the job back to userspace if no error */ | |
2156 | if (rc == 0) | |
2157 | job->job_done(job); | |
2158 | return rc; | |
3b5dd52a JS |
2159 | } |
2160 | ||
2161 | /** | |
7ad20aa9 JS |
2162 | * lpfc_bsg_diag_loopback_mode - bsg vendor command for diag loopback mode |
2163 | * @job: LPFC_BSG_VENDOR_DIAG_MODE | |
3b5dd52a | 2164 | * |
7ad20aa9 JS |
2165 | * This function is responsible for responding to check and dispatch bsg diag |
2166 | * command from the user to proper driver action routines. | |
2167 | */ | |
2168 | static int | |
2169 | lpfc_bsg_diag_loopback_mode(struct fc_bsg_job *job) | |
2170 | { | |
2171 | struct Scsi_Host *shost; | |
2172 | struct lpfc_vport *vport; | |
2173 | struct lpfc_hba *phba; | |
2174 | int rc; | |
2175 | ||
2176 | shost = job->shost; | |
2177 | if (!shost) | |
2178 | return -ENODEV; | |
2179 | vport = (struct lpfc_vport *)job->shost->hostdata; | |
2180 | if (!vport) | |
2181 | return -ENODEV; | |
2182 | phba = vport->phba; | |
2183 | if (!phba) | |
2184 | return -ENODEV; | |
2185 | ||
2186 | if (phba->sli_rev < LPFC_SLI_REV4) | |
2187 | rc = lpfc_sli3_bsg_diag_loopback_mode(phba, job); | |
2188 | else if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == | |
2189 | LPFC_SLI_INTF_IF_TYPE_2) | |
2190 | rc = lpfc_sli4_bsg_diag_loopback_mode(phba, job); | |
2191 | else | |
2192 | rc = -ENODEV; | |
2193 | ||
2194 | return rc; | |
7ad20aa9 JS |
2195 | } |
2196 | ||
2197 | /** | |
2198 | * lpfc_sli4_bsg_diag_mode_end - sli4 bsg vendor command for ending diag mode | |
2199 | * @job: LPFC_BSG_VENDOR_DIAG_MODE_END | |
2200 | * | |
2201 | * This function is responsible for responding to check and dispatch bsg diag | |
2202 | * command from the user to proper driver action routines. | |
2203 | */ | |
2204 | static int | |
2205 | lpfc_sli4_bsg_diag_mode_end(struct fc_bsg_job *job) | |
2206 | { | |
2207 | struct Scsi_Host *shost; | |
2208 | struct lpfc_vport *vport; | |
2209 | struct lpfc_hba *phba; | |
1b51197d JS |
2210 | struct diag_mode_set *loopback_mode_end_cmd; |
2211 | uint32_t timeout; | |
2212 | int rc, i; | |
7ad20aa9 JS |
2213 | |
2214 | shost = job->shost; | |
2215 | if (!shost) | |
2216 | return -ENODEV; | |
2217 | vport = (struct lpfc_vport *)job->shost->hostdata; | |
2218 | if (!vport) | |
2219 | return -ENODEV; | |
2220 | phba = vport->phba; | |
2221 | if (!phba) | |
2222 | return -ENODEV; | |
2223 | ||
2224 | if (phba->sli_rev < LPFC_SLI_REV4) | |
2225 | return -ENODEV; | |
2226 | if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != | |
2227 | LPFC_SLI_INTF_IF_TYPE_2) | |
2228 | return -ENODEV; | |
2229 | ||
1b51197d JS |
2230 | /* clear loopback diagnostic mode */ |
2231 | spin_lock_irq(&phba->hbalock); | |
2232 | phba->link_flag &= ~LS_LOOPBACK_MODE; | |
2233 | spin_unlock_irq(&phba->hbalock); | |
2234 | loopback_mode_end_cmd = (struct diag_mode_set *) | |
2235 | job->request->rqst_data.h_vendor.vendor_cmd; | |
2236 | timeout = loopback_mode_end_cmd->timeout * 100; | |
2237 | ||
7ad20aa9 | 2238 | rc = lpfc_sli4_bsg_set_link_diag_state(phba, 0); |
1b51197d JS |
2239 | if (rc) { |
2240 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
2241 | "3139 Failed to bring link to diagnostic " | |
2242 | "state, rc:x%x\n", rc); | |
2243 | goto loopback_mode_end_exit; | |
2244 | } | |
7ad20aa9 | 2245 | |
1b51197d JS |
2246 | /* wait for link down before proceeding */ |
2247 | i = 0; | |
2248 | while (phba->link_state != LPFC_LINK_DOWN) { | |
2249 | if (i++ > timeout) { | |
1b51197d JS |
2250 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
2251 | "3140 Timeout waiting for link to " | |
2252 | "diagnostic mode_end, timeout:%d ms\n", | |
2253 | timeout * 10); | |
2254 | /* there is nothing much we can do here */ | |
2255 | break; | |
2256 | } | |
2257 | msleep(10); | |
2258 | } | |
7ad20aa9 | 2259 | |
1b51197d JS |
2260 | /* reset port resource registrations */ |
2261 | rc = lpfc_selective_reset(phba); | |
2262 | phba->pport->fc_myDID = 0; | |
2263 | ||
2264 | loopback_mode_end_exit: | |
2265 | /* make return code available to userspace */ | |
2266 | job->reply->result = rc; | |
2267 | /* complete the job back to userspace if no error */ | |
2268 | if (rc == 0) | |
2269 | job->job_done(job); | |
7ad20aa9 JS |
2270 | return rc; |
2271 | } | |
2272 | ||
2273 | /** | |
2274 | * lpfc_sli4_bsg_link_diag_test - sli4 bsg vendor command for diag link test | |
2275 | * @job: LPFC_BSG_VENDOR_DIAG_LINK_TEST | |
2276 | * | |
2277 | * This function is to perform SLI4 diag link test request from the user | |
2278 | * applicaiton. | |
2279 | */ | |
2280 | static int | |
2281 | lpfc_sli4_bsg_link_diag_test(struct fc_bsg_job *job) | |
2282 | { | |
2283 | struct Scsi_Host *shost; | |
2284 | struct lpfc_vport *vport; | |
2285 | struct lpfc_hba *phba; | |
2286 | LPFC_MBOXQ_t *pmboxq; | |
2287 | struct sli4_link_diag *link_diag_test_cmd; | |
2288 | uint32_t req_len, alloc_len; | |
7ad20aa9 JS |
2289 | struct lpfc_mbx_run_link_diag_test *run_link_diag_test; |
2290 | union lpfc_sli4_cfg_shdr *shdr; | |
2291 | uint32_t shdr_status, shdr_add_status; | |
2292 | struct diag_status *diag_status_reply; | |
2293 | int mbxstatus, rc = 0; | |
2294 | ||
2295 | shost = job->shost; | |
2296 | if (!shost) { | |
2297 | rc = -ENODEV; | |
2298 | goto job_error; | |
2299 | } | |
2300 | vport = (struct lpfc_vport *)job->shost->hostdata; | |
2301 | if (!vport) { | |
2302 | rc = -ENODEV; | |
2303 | goto job_error; | |
2304 | } | |
2305 | phba = vport->phba; | |
2306 | if (!phba) { | |
2307 | rc = -ENODEV; | |
2308 | goto job_error; | |
2309 | } | |
2310 | ||
2311 | if (phba->sli_rev < LPFC_SLI_REV4) { | |
2312 | rc = -ENODEV; | |
2313 | goto job_error; | |
2314 | } | |
2315 | if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != | |
2316 | LPFC_SLI_INTF_IF_TYPE_2) { | |
2317 | rc = -ENODEV; | |
2318 | goto job_error; | |
2319 | } | |
2320 | ||
2321 | if (job->request_len < sizeof(struct fc_bsg_request) + | |
2322 | sizeof(struct sli4_link_diag)) { | |
2323 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
2324 | "3013 Received LINK DIAG TEST request " | |
2325 | " size:%d below the minimum size:%d\n", | |
2326 | job->request_len, | |
2327 | (int)(sizeof(struct fc_bsg_request) + | |
2328 | sizeof(struct sli4_link_diag))); | |
2329 | rc = -EINVAL; | |
2330 | goto job_error; | |
2331 | } | |
2332 | ||
88a2cfbb | 2333 | rc = lpfc_bsg_diag_mode_enter(phba); |
7ad20aa9 JS |
2334 | if (rc) |
2335 | goto job_error; | |
2336 | ||
2337 | link_diag_test_cmd = (struct sli4_link_diag *) | |
2338 | job->request->rqst_data.h_vendor.vendor_cmd; | |
7ad20aa9 JS |
2339 | |
2340 | rc = lpfc_sli4_bsg_set_link_diag_state(phba, 1); | |
2341 | ||
2342 | if (rc) | |
2343 | goto job_error; | |
2344 | ||
2345 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
2346 | if (!pmboxq) { | |
2347 | rc = -ENOMEM; | |
2348 | goto link_diag_test_exit; | |
2349 | } | |
2350 | ||
2351 | req_len = (sizeof(struct lpfc_mbx_set_link_diag_state) - | |
2352 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
2353 | alloc_len = lpfc_sli4_config(phba, pmboxq, LPFC_MBOX_SUBSYSTEM_FCOE, | |
2354 | LPFC_MBOX_OPCODE_FCOE_LINK_DIAG_STATE, | |
2355 | req_len, LPFC_SLI4_MBX_EMBED); | |
2356 | if (alloc_len != req_len) { | |
2357 | rc = -ENOMEM; | |
2358 | goto link_diag_test_exit; | |
2359 | } | |
2360 | run_link_diag_test = &pmboxq->u.mqe.un.link_diag_test; | |
2361 | bf_set(lpfc_mbx_run_diag_test_link_num, &run_link_diag_test->u.req, | |
1b51197d | 2362 | phba->sli4_hba.lnk_info.lnk_no); |
7ad20aa9 | 2363 | bf_set(lpfc_mbx_run_diag_test_link_type, &run_link_diag_test->u.req, |
1b51197d | 2364 | phba->sli4_hba.lnk_info.lnk_tp); |
7ad20aa9 JS |
2365 | bf_set(lpfc_mbx_run_diag_test_test_id, &run_link_diag_test->u.req, |
2366 | link_diag_test_cmd->test_id); | |
2367 | bf_set(lpfc_mbx_run_diag_test_loops, &run_link_diag_test->u.req, | |
2368 | link_diag_test_cmd->loops); | |
2369 | bf_set(lpfc_mbx_run_diag_test_test_ver, &run_link_diag_test->u.req, | |
2370 | link_diag_test_cmd->test_version); | |
2371 | bf_set(lpfc_mbx_run_diag_test_err_act, &run_link_diag_test->u.req, | |
2372 | link_diag_test_cmd->error_action); | |
2373 | ||
2374 | mbxstatus = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); | |
2375 | ||
2376 | shdr = (union lpfc_sli4_cfg_shdr *) | |
2377 | &pmboxq->u.mqe.un.sli4_config.header.cfg_shdr; | |
2378 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
2379 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
2380 | if (shdr_status || shdr_add_status || mbxstatus) { | |
2381 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, | |
2382 | "3010 Run link diag test mailbox failed with " | |
2383 | "mbx_status x%x status x%x, add_status x%x\n", | |
2384 | mbxstatus, shdr_status, shdr_add_status); | |
2385 | } | |
2386 | ||
2387 | diag_status_reply = (struct diag_status *) | |
2388 | job->reply->reply_data.vendor_reply.vendor_rsp; | |
2389 | ||
2390 | if (job->reply_len < | |
2391 | sizeof(struct fc_bsg_request) + sizeof(struct diag_status)) { | |
2392 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
2393 | "3012 Received Run link diag test reply " | |
2394 | "below minimum size (%d): reply_len:%d\n", | |
2395 | (int)(sizeof(struct fc_bsg_request) + | |
2396 | sizeof(struct diag_status)), | |
2397 | job->reply_len); | |
2398 | rc = -EINVAL; | |
2399 | goto job_error; | |
2400 | } | |
2401 | ||
2402 | diag_status_reply->mbox_status = mbxstatus; | |
2403 | diag_status_reply->shdr_status = shdr_status; | |
2404 | diag_status_reply->shdr_add_status = shdr_add_status; | |
2405 | ||
2406 | link_diag_test_exit: | |
2407 | rc = lpfc_sli4_bsg_set_link_diag_state(phba, 0); | |
2408 | ||
2409 | if (pmboxq) | |
2410 | mempool_free(pmboxq, phba->mbox_mem_pool); | |
2411 | ||
2412 | lpfc_bsg_diag_mode_exit(phba); | |
2413 | ||
2414 | job_error: | |
2415 | /* make error code available to userspace */ | |
2416 | job->reply->result = rc; | |
2417 | /* complete the job back to userspace if no error */ | |
2418 | if (rc == 0) | |
2419 | job->job_done(job); | |
2420 | return rc; | |
2421 | } | |
2422 | ||
2423 | /** | |
2424 | * lpfcdiag_loop_self_reg - obtains a remote port login id | |
2425 | * @phba: Pointer to HBA context object | |
2426 | * @rpi: Pointer to a remote port login id | |
2427 | * | |
2428 | * This function obtains a remote port login id so the diag loopback test | |
2429 | * can send and receive its own unsolicited CT command. | |
2430 | **/ | |
2431 | static int lpfcdiag_loop_self_reg(struct lpfc_hba *phba, uint16_t *rpi) | |
2432 | { | |
2433 | LPFC_MBOXQ_t *mbox; | |
2434 | struct lpfc_dmabuf *dmabuff; | |
2435 | int status; | |
2436 | ||
2437 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
2438 | if (!mbox) | |
2439 | return -ENOMEM; | |
2440 | ||
1b51197d JS |
2441 | if (phba->sli_rev < LPFC_SLI_REV4) |
2442 | status = lpfc_reg_rpi(phba, 0, phba->pport->fc_myDID, | |
2443 | (uint8_t *)&phba->pport->fc_sparam, | |
2444 | mbox, *rpi); | |
2445 | else { | |
7ad20aa9 | 2446 | *rpi = lpfc_sli4_alloc_rpi(phba); |
1b51197d JS |
2447 | status = lpfc_reg_rpi(phba, phba->pport->vpi, |
2448 | phba->pport->fc_myDID, | |
2449 | (uint8_t *)&phba->pport->fc_sparam, | |
2450 | mbox, *rpi); | |
2451 | } | |
2452 | ||
7ad20aa9 JS |
2453 | if (status) { |
2454 | mempool_free(mbox, phba->mbox_mem_pool); | |
2455 | if (phba->sli_rev == LPFC_SLI_REV4) | |
2456 | lpfc_sli4_free_rpi(phba, *rpi); | |
2457 | return -ENOMEM; | |
2458 | } | |
2459 | ||
2460 | dmabuff = (struct lpfc_dmabuf *) mbox->context1; | |
2461 | mbox->context1 = NULL; | |
2462 | mbox->context2 = NULL; | |
2463 | status = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); | |
2464 | ||
2465 | if ((status != MBX_SUCCESS) || (mbox->u.mb.mbxStatus)) { | |
2466 | lpfc_mbuf_free(phba, dmabuff->virt, dmabuff->phys); | |
2467 | kfree(dmabuff); | |
2468 | if (status != MBX_TIMEOUT) | |
2469 | mempool_free(mbox, phba->mbox_mem_pool); | |
2470 | if (phba->sli_rev == LPFC_SLI_REV4) | |
2471 | lpfc_sli4_free_rpi(phba, *rpi); | |
2472 | return -ENODEV; | |
2473 | } | |
2474 | ||
1b51197d JS |
2475 | if (phba->sli_rev < LPFC_SLI_REV4) |
2476 | *rpi = mbox->u.mb.un.varWords[0]; | |
7ad20aa9 JS |
2477 | |
2478 | lpfc_mbuf_free(phba, dmabuff->virt, dmabuff->phys); | |
2479 | kfree(dmabuff); | |
2480 | mempool_free(mbox, phba->mbox_mem_pool); | |
2481 | return 0; | |
2482 | } | |
2483 | ||
2484 | /** | |
2485 | * lpfcdiag_loop_self_unreg - unregs from the rpi | |
2486 | * @phba: Pointer to HBA context object | |
2487 | * @rpi: Remote port login id | |
2488 | * | |
2489 | * This function unregisters the rpi obtained in lpfcdiag_loop_self_reg | |
2490 | **/ | |
2491 | static int lpfcdiag_loop_self_unreg(struct lpfc_hba *phba, uint16_t rpi) | |
2492 | { | |
2493 | LPFC_MBOXQ_t *mbox; | |
2494 | int status; | |
2495 | ||
2496 | /* Allocate mboxq structure */ | |
2497 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
2498 | if (mbox == NULL) | |
2499 | return -ENOMEM; | |
2500 | ||
1b51197d JS |
2501 | if (phba->sli_rev < LPFC_SLI_REV4) |
2502 | lpfc_unreg_login(phba, 0, rpi, mbox); | |
2503 | else | |
2504 | lpfc_unreg_login(phba, phba->pport->vpi, | |
2505 | phba->sli4_hba.rpi_ids[rpi], mbox); | |
2506 | ||
7ad20aa9 JS |
2507 | status = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); |
2508 | ||
2509 | if ((status != MBX_SUCCESS) || (mbox->u.mb.mbxStatus)) { | |
2510 | if (status != MBX_TIMEOUT) | |
2511 | mempool_free(mbox, phba->mbox_mem_pool); | |
2512 | return -EIO; | |
2513 | } | |
2514 | mempool_free(mbox, phba->mbox_mem_pool); | |
2515 | if (phba->sli_rev == LPFC_SLI_REV4) | |
2516 | lpfc_sli4_free_rpi(phba, rpi); | |
2517 | return 0; | |
2518 | } | |
2519 | ||
2520 | /** | |
2521 | * lpfcdiag_loop_get_xri - obtains the transmit and receive ids | |
2522 | * @phba: Pointer to HBA context object | |
2523 | * @rpi: Remote port login id | |
2524 | * @txxri: Pointer to transmit exchange id | |
2525 | * @rxxri: Pointer to response exchabge id | |
2526 | * | |
2527 | * This function obtains the transmit and receive ids required to send | |
2528 | * an unsolicited ct command with a payload. A special lpfc FsType and CmdRsp | |
2529 | * flags are used to the unsolicted response handler is able to process | |
2530 | * the ct command sent on the same port. | |
2531 | **/ | |
2532 | static int lpfcdiag_loop_get_xri(struct lpfc_hba *phba, uint16_t rpi, | |
2533 | uint16_t *txxri, uint16_t * rxxri) | |
3b5dd52a JS |
2534 | { |
2535 | struct lpfc_bsg_event *evt; | |
2536 | struct lpfc_iocbq *cmdiocbq, *rspiocbq; | |
2537 | IOCB_t *cmd, *rsp; | |
2538 | struct lpfc_dmabuf *dmabuf; | |
2539 | struct ulp_bde64 *bpl = NULL; | |
2540 | struct lpfc_sli_ct_request *ctreq = NULL; | |
2541 | int ret_val = 0; | |
d439d286 | 2542 | int time_left; |
5a0916b4 | 2543 | int iocb_stat = IOCB_SUCCESS; |
3b5dd52a JS |
2544 | unsigned long flags; |
2545 | ||
2546 | *txxri = 0; | |
2547 | *rxxri = 0; | |
2548 | evt = lpfc_bsg_event_new(FC_REG_CT_EVENT, current->pid, | |
2549 | SLI_CT_ELX_LOOPBACK); | |
2550 | if (!evt) | |
d439d286 | 2551 | return -ENOMEM; |
3b5dd52a JS |
2552 | |
2553 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
2554 | list_add(&evt->node, &phba->ct_ev_waiters); | |
2555 | lpfc_bsg_event_ref(evt); | |
2556 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
2557 | ||
2558 | cmdiocbq = lpfc_sli_get_iocbq(phba); | |
2559 | rspiocbq = lpfc_sli_get_iocbq(phba); | |
2560 | ||
2561 | dmabuf = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
2562 | if (dmabuf) { | |
2563 | dmabuf->virt = lpfc_mbuf_alloc(phba, 0, &dmabuf->phys); | |
c7495937 JS |
2564 | if (dmabuf->virt) { |
2565 | INIT_LIST_HEAD(&dmabuf->list); | |
2566 | bpl = (struct ulp_bde64 *) dmabuf->virt; | |
2567 | memset(bpl, 0, sizeof(*bpl)); | |
2568 | ctreq = (struct lpfc_sli_ct_request *)(bpl + 1); | |
2569 | bpl->addrHigh = | |
2570 | le32_to_cpu(putPaddrHigh(dmabuf->phys + | |
2571 | sizeof(*bpl))); | |
2572 | bpl->addrLow = | |
2573 | le32_to_cpu(putPaddrLow(dmabuf->phys + | |
2574 | sizeof(*bpl))); | |
2575 | bpl->tus.f.bdeFlags = 0; | |
2576 | bpl->tus.f.bdeSize = ELX_LOOPBACK_HEADER_SZ; | |
2577 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
2578 | } | |
3b5dd52a JS |
2579 | } |
2580 | ||
2581 | if (cmdiocbq == NULL || rspiocbq == NULL || | |
c7495937 JS |
2582 | dmabuf == NULL || bpl == NULL || ctreq == NULL || |
2583 | dmabuf->virt == NULL) { | |
d439d286 | 2584 | ret_val = -ENOMEM; |
3b5dd52a JS |
2585 | goto err_get_xri_exit; |
2586 | } | |
2587 | ||
2588 | cmd = &cmdiocbq->iocb; | |
2589 | rsp = &rspiocbq->iocb; | |
2590 | ||
2591 | memset(ctreq, 0, ELX_LOOPBACK_HEADER_SZ); | |
2592 | ||
2593 | ctreq->RevisionId.bits.Revision = SLI_CT_REVISION; | |
2594 | ctreq->RevisionId.bits.InId = 0; | |
2595 | ctreq->FsType = SLI_CT_ELX_LOOPBACK; | |
2596 | ctreq->FsSubType = 0; | |
2597 | ctreq->CommandResponse.bits.CmdRsp = ELX_LOOPBACK_XRI_SETUP; | |
2598 | ctreq->CommandResponse.bits.Size = 0; | |
2599 | ||
2600 | ||
2601 | cmd->un.xseq64.bdl.addrHigh = putPaddrHigh(dmabuf->phys); | |
2602 | cmd->un.xseq64.bdl.addrLow = putPaddrLow(dmabuf->phys); | |
2603 | cmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; | |
2604 | cmd->un.xseq64.bdl.bdeSize = sizeof(*bpl); | |
2605 | ||
2606 | cmd->un.xseq64.w5.hcsw.Fctl = LA; | |
2607 | cmd->un.xseq64.w5.hcsw.Dfctl = 0; | |
2608 | cmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL; | |
2609 | cmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT; | |
2610 | ||
2611 | cmd->ulpCommand = CMD_XMIT_SEQUENCE64_CR; | |
2612 | cmd->ulpBdeCount = 1; | |
2613 | cmd->ulpLe = 1; | |
2614 | cmd->ulpClass = CLASS3; | |
2615 | cmd->ulpContext = rpi; | |
2616 | ||
2617 | cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC; | |
2618 | cmdiocbq->vport = phba->pport; | |
5a0916b4 | 2619 | cmdiocbq->iocb_cmpl = NULL; |
3b5dd52a | 2620 | |
d439d286 | 2621 | iocb_stat = lpfc_sli_issue_iocb_wait(phba, LPFC_ELS_RING, cmdiocbq, |
3b5dd52a JS |
2622 | rspiocbq, |
2623 | (phba->fc_ratov * 2) | |
2624 | + LPFC_DRVR_TIMEOUT); | |
53151bbb | 2625 | if ((iocb_stat != IOCB_SUCCESS) || (rsp->ulpStatus != IOSTAT_SUCCESS)) { |
d439d286 | 2626 | ret_val = -EIO; |
3b5dd52a | 2627 | goto err_get_xri_exit; |
d439d286 | 2628 | } |
3b5dd52a JS |
2629 | *txxri = rsp->ulpContext; |
2630 | ||
2631 | evt->waiting = 1; | |
2632 | evt->wait_time_stamp = jiffies; | |
d439d286 | 2633 | time_left = wait_event_interruptible_timeout( |
3b5dd52a | 2634 | evt->wq, !list_empty(&evt->events_to_see), |
256ec0d0 JS |
2635 | msecs_to_jiffies(1000 * |
2636 | ((phba->fc_ratov * 2) + LPFC_DRVR_TIMEOUT))); | |
3b5dd52a | 2637 | if (list_empty(&evt->events_to_see)) |
d439d286 | 2638 | ret_val = (time_left) ? -EINTR : -ETIMEDOUT; |
3b5dd52a | 2639 | else { |
3b5dd52a JS |
2640 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
2641 | list_move(evt->events_to_see.prev, &evt->events_to_get); | |
2642 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
2643 | *rxxri = (list_entry(evt->events_to_get.prev, | |
2644 | typeof(struct event_data), | |
2645 | node))->immed_dat; | |
2646 | } | |
2647 | evt->waiting = 0; | |
2648 | ||
2649 | err_get_xri_exit: | |
2650 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
2651 | lpfc_bsg_event_unref(evt); /* release ref */ | |
2652 | lpfc_bsg_event_unref(evt); /* delete */ | |
2653 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
2654 | ||
2655 | if (dmabuf) { | |
2656 | if (dmabuf->virt) | |
2657 | lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys); | |
2658 | kfree(dmabuf); | |
2659 | } | |
2660 | ||
d439d286 | 2661 | if (cmdiocbq && (iocb_stat != IOCB_TIMEDOUT)) |
3b5dd52a JS |
2662 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
2663 | if (rspiocbq) | |
2664 | lpfc_sli_release_iocbq(phba, rspiocbq); | |
2665 | return ret_val; | |
2666 | } | |
2667 | ||
7ad20aa9 JS |
2668 | /** |
2669 | * lpfc_bsg_dma_page_alloc - allocate a bsg mbox page sized dma buffers | |
2670 | * @phba: Pointer to HBA context object | |
2671 | * | |
2672 | * This function allocates BSG_MBOX_SIZE (4KB) page size dma buffer and. | |
9e03aa2f | 2673 | * returns the pointer to the buffer. |
7ad20aa9 JS |
2674 | **/ |
2675 | static struct lpfc_dmabuf * | |
2676 | lpfc_bsg_dma_page_alloc(struct lpfc_hba *phba) | |
2677 | { | |
2678 | struct lpfc_dmabuf *dmabuf; | |
2679 | struct pci_dev *pcidev = phba->pcidev; | |
2680 | ||
2681 | /* allocate dma buffer struct */ | |
2682 | dmabuf = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
2683 | if (!dmabuf) | |
2684 | return NULL; | |
2685 | ||
2686 | INIT_LIST_HEAD(&dmabuf->list); | |
2687 | ||
2688 | /* now, allocate dma buffer */ | |
1aee383d JP |
2689 | dmabuf->virt = dma_zalloc_coherent(&pcidev->dev, BSG_MBOX_SIZE, |
2690 | &(dmabuf->phys), GFP_KERNEL); | |
7ad20aa9 JS |
2691 | |
2692 | if (!dmabuf->virt) { | |
2693 | kfree(dmabuf); | |
2694 | return NULL; | |
2695 | } | |
7ad20aa9 JS |
2696 | |
2697 | return dmabuf; | |
2698 | } | |
2699 | ||
2700 | /** | |
2701 | * lpfc_bsg_dma_page_free - free a bsg mbox page sized dma buffer | |
2702 | * @phba: Pointer to HBA context object. | |
2703 | * @dmabuf: Pointer to the bsg mbox page sized dma buffer descriptor. | |
2704 | * | |
2705 | * This routine just simply frees a dma buffer and its associated buffer | |
2706 | * descriptor referred by @dmabuf. | |
2707 | **/ | |
2708 | static void | |
2709 | lpfc_bsg_dma_page_free(struct lpfc_hba *phba, struct lpfc_dmabuf *dmabuf) | |
2710 | { | |
2711 | struct pci_dev *pcidev = phba->pcidev; | |
2712 | ||
2713 | if (!dmabuf) | |
2714 | return; | |
2715 | ||
2716 | if (dmabuf->virt) | |
2717 | dma_free_coherent(&pcidev->dev, BSG_MBOX_SIZE, | |
2718 | dmabuf->virt, dmabuf->phys); | |
2719 | kfree(dmabuf); | |
2720 | return; | |
2721 | } | |
2722 | ||
2723 | /** | |
2724 | * lpfc_bsg_dma_page_list_free - free a list of bsg mbox page sized dma buffers | |
2725 | * @phba: Pointer to HBA context object. | |
2726 | * @dmabuf_list: Pointer to a list of bsg mbox page sized dma buffer descs. | |
2727 | * | |
2728 | * This routine just simply frees all dma buffers and their associated buffer | |
2729 | * descriptors referred by @dmabuf_list. | |
2730 | **/ | |
2731 | static void | |
2732 | lpfc_bsg_dma_page_list_free(struct lpfc_hba *phba, | |
2733 | struct list_head *dmabuf_list) | |
2734 | { | |
2735 | struct lpfc_dmabuf *dmabuf, *next_dmabuf; | |
2736 | ||
2737 | if (list_empty(dmabuf_list)) | |
2738 | return; | |
2739 | ||
2740 | list_for_each_entry_safe(dmabuf, next_dmabuf, dmabuf_list, list) { | |
2741 | list_del_init(&dmabuf->list); | |
2742 | lpfc_bsg_dma_page_free(phba, dmabuf); | |
2743 | } | |
2744 | return; | |
2745 | } | |
2746 | ||
3b5dd52a JS |
2747 | /** |
2748 | * diag_cmd_data_alloc - fills in a bde struct with dma buffers | |
2749 | * @phba: Pointer to HBA context object | |
2750 | * @bpl: Pointer to 64 bit bde structure | |
2751 | * @size: Number of bytes to process | |
2752 | * @nocopydata: Flag to copy user data into the allocated buffer | |
2753 | * | |
2754 | * This function allocates page size buffers and populates an lpfc_dmabufext. | |
2755 | * If allowed the user data pointed to with indataptr is copied into the kernel | |
2756 | * memory. The chained list of page size buffers is returned. | |
2757 | **/ | |
2758 | static struct lpfc_dmabufext * | |
2759 | diag_cmd_data_alloc(struct lpfc_hba *phba, | |
2760 | struct ulp_bde64 *bpl, uint32_t size, | |
2761 | int nocopydata) | |
2762 | { | |
2763 | struct lpfc_dmabufext *mlist = NULL; | |
2764 | struct lpfc_dmabufext *dmp; | |
2765 | int cnt, offset = 0, i = 0; | |
2766 | struct pci_dev *pcidev; | |
2767 | ||
2768 | pcidev = phba->pcidev; | |
2769 | ||
2770 | while (size) { | |
2771 | /* We get chunks of 4K */ | |
2772 | if (size > BUF_SZ_4K) | |
2773 | cnt = BUF_SZ_4K; | |
2774 | else | |
2775 | cnt = size; | |
2776 | ||
2777 | /* allocate struct lpfc_dmabufext buffer header */ | |
2778 | dmp = kmalloc(sizeof(struct lpfc_dmabufext), GFP_KERNEL); | |
2779 | if (!dmp) | |
2780 | goto out; | |
2781 | ||
2782 | INIT_LIST_HEAD(&dmp->dma.list); | |
2783 | ||
2784 | /* Queue it to a linked list */ | |
2785 | if (mlist) | |
2786 | list_add_tail(&dmp->dma.list, &mlist->dma.list); | |
2787 | else | |
2788 | mlist = dmp; | |
2789 | ||
2790 | /* allocate buffer */ | |
2791 | dmp->dma.virt = dma_alloc_coherent(&pcidev->dev, | |
2792 | cnt, | |
2793 | &(dmp->dma.phys), | |
2794 | GFP_KERNEL); | |
2795 | ||
2796 | if (!dmp->dma.virt) | |
2797 | goto out; | |
2798 | ||
2799 | dmp->size = cnt; | |
2800 | ||
2801 | if (nocopydata) { | |
2802 | bpl->tus.f.bdeFlags = 0; | |
2803 | pci_dma_sync_single_for_device(phba->pcidev, | |
2804 | dmp->dma.phys, LPFC_BPL_SIZE, PCI_DMA_TODEVICE); | |
2805 | ||
2806 | } else { | |
2807 | memset((uint8_t *)dmp->dma.virt, 0, cnt); | |
2808 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; | |
2809 | } | |
2810 | ||
2811 | /* build buffer ptr list for IOCB */ | |
2812 | bpl->addrLow = le32_to_cpu(putPaddrLow(dmp->dma.phys)); | |
2813 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(dmp->dma.phys)); | |
2814 | bpl->tus.f.bdeSize = (ushort) cnt; | |
2815 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
2816 | bpl++; | |
2817 | ||
2818 | i++; | |
2819 | offset += cnt; | |
2820 | size -= cnt; | |
2821 | } | |
2822 | ||
a2fc4aef JS |
2823 | if (mlist) { |
2824 | mlist->flag = i; | |
2825 | return mlist; | |
2826 | } | |
3b5dd52a JS |
2827 | out: |
2828 | diag_cmd_data_free(phba, mlist); | |
2829 | return NULL; | |
2830 | } | |
2831 | ||
2832 | /** | |
2833 | * lpfcdiag_loop_post_rxbufs - post the receive buffers for an unsol CT cmd | |
2834 | * @phba: Pointer to HBA context object | |
2835 | * @rxxri: Receive exchange id | |
2836 | * @len: Number of data bytes | |
2837 | * | |
25985edc | 2838 | * This function allocates and posts a data buffer of sufficient size to receive |
3b5dd52a JS |
2839 | * an unsolicted CT command. |
2840 | **/ | |
2841 | static int lpfcdiag_loop_post_rxbufs(struct lpfc_hba *phba, uint16_t rxxri, | |
2842 | size_t len) | |
2843 | { | |
2844 | struct lpfc_sli *psli = &phba->sli; | |
2845 | struct lpfc_sli_ring *pring = &psli->ring[LPFC_ELS_RING]; | |
2846 | struct lpfc_iocbq *cmdiocbq; | |
2847 | IOCB_t *cmd = NULL; | |
2848 | struct list_head head, *curr, *next; | |
2849 | struct lpfc_dmabuf *rxbmp; | |
2850 | struct lpfc_dmabuf *dmp; | |
2851 | struct lpfc_dmabuf *mp[2] = {NULL, NULL}; | |
2852 | struct ulp_bde64 *rxbpl = NULL; | |
2853 | uint32_t num_bde; | |
2854 | struct lpfc_dmabufext *rxbuffer = NULL; | |
2855 | int ret_val = 0; | |
d439d286 | 2856 | int iocb_stat; |
3b5dd52a JS |
2857 | int i = 0; |
2858 | ||
2859 | cmdiocbq = lpfc_sli_get_iocbq(phba); | |
2860 | rxbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
2861 | if (rxbmp != NULL) { | |
2862 | rxbmp->virt = lpfc_mbuf_alloc(phba, 0, &rxbmp->phys); | |
c7495937 JS |
2863 | if (rxbmp->virt) { |
2864 | INIT_LIST_HEAD(&rxbmp->list); | |
2865 | rxbpl = (struct ulp_bde64 *) rxbmp->virt; | |
2866 | rxbuffer = diag_cmd_data_alloc(phba, rxbpl, len, 0); | |
2867 | } | |
3b5dd52a JS |
2868 | } |
2869 | ||
2870 | if (!cmdiocbq || !rxbmp || !rxbpl || !rxbuffer) { | |
d439d286 | 2871 | ret_val = -ENOMEM; |
3b5dd52a JS |
2872 | goto err_post_rxbufs_exit; |
2873 | } | |
2874 | ||
2875 | /* Queue buffers for the receive exchange */ | |
2876 | num_bde = (uint32_t)rxbuffer->flag; | |
2877 | dmp = &rxbuffer->dma; | |
2878 | ||
2879 | cmd = &cmdiocbq->iocb; | |
2880 | i = 0; | |
2881 | ||
2882 | INIT_LIST_HEAD(&head); | |
2883 | list_add_tail(&head, &dmp->list); | |
2884 | list_for_each_safe(curr, next, &head) { | |
2885 | mp[i] = list_entry(curr, struct lpfc_dmabuf, list); | |
2886 | list_del(curr); | |
2887 | ||
2888 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { | |
2889 | mp[i]->buffer_tag = lpfc_sli_get_buffer_tag(phba); | |
2890 | cmd->un.quexri64cx.buff.bde.addrHigh = | |
2891 | putPaddrHigh(mp[i]->phys); | |
2892 | cmd->un.quexri64cx.buff.bde.addrLow = | |
2893 | putPaddrLow(mp[i]->phys); | |
2894 | cmd->un.quexri64cx.buff.bde.tus.f.bdeSize = | |
2895 | ((struct lpfc_dmabufext *)mp[i])->size; | |
2896 | cmd->un.quexri64cx.buff.buffer_tag = mp[i]->buffer_tag; | |
2897 | cmd->ulpCommand = CMD_QUE_XRI64_CX; | |
2898 | cmd->ulpPU = 0; | |
2899 | cmd->ulpLe = 1; | |
2900 | cmd->ulpBdeCount = 1; | |
2901 | cmd->unsli3.que_xri64cx_ext_words.ebde_count = 0; | |
2902 | ||
2903 | } else { | |
2904 | cmd->un.cont64[i].addrHigh = putPaddrHigh(mp[i]->phys); | |
2905 | cmd->un.cont64[i].addrLow = putPaddrLow(mp[i]->phys); | |
2906 | cmd->un.cont64[i].tus.f.bdeSize = | |
2907 | ((struct lpfc_dmabufext *)mp[i])->size; | |
2908 | cmd->ulpBdeCount = ++i; | |
2909 | ||
2910 | if ((--num_bde > 0) && (i < 2)) | |
2911 | continue; | |
2912 | ||
2913 | cmd->ulpCommand = CMD_QUE_XRI_BUF64_CX; | |
2914 | cmd->ulpLe = 1; | |
2915 | } | |
2916 | ||
2917 | cmd->ulpClass = CLASS3; | |
2918 | cmd->ulpContext = rxxri; | |
2919 | ||
d439d286 JS |
2920 | iocb_stat = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, |
2921 | 0); | |
2922 | if (iocb_stat == IOCB_ERROR) { | |
3b5dd52a JS |
2923 | diag_cmd_data_free(phba, |
2924 | (struct lpfc_dmabufext *)mp[0]); | |
2925 | if (mp[1]) | |
2926 | diag_cmd_data_free(phba, | |
2927 | (struct lpfc_dmabufext *)mp[1]); | |
2928 | dmp = list_entry(next, struct lpfc_dmabuf, list); | |
d439d286 | 2929 | ret_val = -EIO; |
3b5dd52a JS |
2930 | goto err_post_rxbufs_exit; |
2931 | } | |
2932 | ||
2933 | lpfc_sli_ringpostbuf_put(phba, pring, mp[0]); | |
2934 | if (mp[1]) { | |
2935 | lpfc_sli_ringpostbuf_put(phba, pring, mp[1]); | |
2936 | mp[1] = NULL; | |
2937 | } | |
2938 | ||
2939 | /* The iocb was freed by lpfc_sli_issue_iocb */ | |
2940 | cmdiocbq = lpfc_sli_get_iocbq(phba); | |
2941 | if (!cmdiocbq) { | |
2942 | dmp = list_entry(next, struct lpfc_dmabuf, list); | |
d439d286 | 2943 | ret_val = -EIO; |
3b5dd52a JS |
2944 | goto err_post_rxbufs_exit; |
2945 | } | |
2946 | ||
2947 | cmd = &cmdiocbq->iocb; | |
2948 | i = 0; | |
2949 | } | |
2950 | list_del(&head); | |
2951 | ||
2952 | err_post_rxbufs_exit: | |
2953 | ||
2954 | if (rxbmp) { | |
2955 | if (rxbmp->virt) | |
2956 | lpfc_mbuf_free(phba, rxbmp->virt, rxbmp->phys); | |
2957 | kfree(rxbmp); | |
2958 | } | |
2959 | ||
2960 | if (cmdiocbq) | |
2961 | lpfc_sli_release_iocbq(phba, cmdiocbq); | |
2962 | return ret_val; | |
2963 | } | |
2964 | ||
2965 | /** | |
7ad20aa9 | 2966 | * lpfc_bsg_diag_loopback_run - run loopback on a port by issue ct cmd to itself |
3b5dd52a JS |
2967 | * @job: LPFC_BSG_VENDOR_DIAG_TEST fc_bsg_job |
2968 | * | |
2969 | * This function receives a user data buffer to be transmitted and received on | |
2970 | * the same port, the link must be up and in loopback mode prior | |
2971 | * to being called. | |
2972 | * 1. A kernel buffer is allocated to copy the user data into. | |
2973 | * 2. The port registers with "itself". | |
2974 | * 3. The transmit and receive exchange ids are obtained. | |
2975 | * 4. The receive exchange id is posted. | |
2976 | * 5. A new els loopback event is created. | |
2977 | * 6. The command and response iocbs are allocated. | |
2978 | * 7. The cmd iocb FsType is set to elx loopback and the CmdRsp to looppback. | |
2979 | * | |
2980 | * This function is meant to be called n times while the port is in loopback | |
2981 | * so it is the apps responsibility to issue a reset to take the port out | |
2982 | * of loopback mode. | |
2983 | **/ | |
2984 | static int | |
7ad20aa9 | 2985 | lpfc_bsg_diag_loopback_run(struct fc_bsg_job *job) |
3b5dd52a JS |
2986 | { |
2987 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
2988 | struct lpfc_hba *phba = vport->phba; | |
3b5dd52a JS |
2989 | struct lpfc_bsg_event *evt; |
2990 | struct event_data *evdat; | |
2991 | struct lpfc_sli *psli = &phba->sli; | |
2992 | uint32_t size; | |
2993 | uint32_t full_size; | |
2994 | size_t segment_len = 0, segment_offset = 0, current_offset = 0; | |
4042629e | 2995 | uint16_t rpi = 0; |
1b51197d JS |
2996 | struct lpfc_iocbq *cmdiocbq, *rspiocbq = NULL; |
2997 | IOCB_t *cmd, *rsp = NULL; | |
3b5dd52a JS |
2998 | struct lpfc_sli_ct_request *ctreq; |
2999 | struct lpfc_dmabuf *txbmp; | |
3000 | struct ulp_bde64 *txbpl = NULL; | |
3001 | struct lpfc_dmabufext *txbuffer = NULL; | |
3002 | struct list_head head; | |
3003 | struct lpfc_dmabuf *curr; | |
1b51197d | 3004 | uint16_t txxri = 0, rxxri; |
3b5dd52a JS |
3005 | uint32_t num_bde; |
3006 | uint8_t *ptr = NULL, *rx_databuf = NULL; | |
3007 | int rc = 0; | |
d439d286 | 3008 | int time_left; |
5a0916b4 | 3009 | int iocb_stat = IOCB_SUCCESS; |
3b5dd52a JS |
3010 | unsigned long flags; |
3011 | void *dataout = NULL; | |
3012 | uint32_t total_mem; | |
3013 | ||
3014 | /* in case no data is returned return just the return code */ | |
3015 | job->reply->reply_payload_rcv_len = 0; | |
3016 | ||
3017 | if (job->request_len < | |
3018 | sizeof(struct fc_bsg_request) + sizeof(struct diag_mode_test)) { | |
3019 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
3020 | "2739 Received DIAG TEST request below minimum " | |
3021 | "size\n"); | |
3022 | rc = -EINVAL; | |
3023 | goto loopback_test_exit; | |
3024 | } | |
3025 | ||
3026 | if (job->request_payload.payload_len != | |
3027 | job->reply_payload.payload_len) { | |
3028 | rc = -EINVAL; | |
3029 | goto loopback_test_exit; | |
3030 | } | |
3b5dd52a JS |
3031 | |
3032 | if ((phba->link_state == LPFC_HBA_ERROR) || | |
3033 | (psli->sli_flag & LPFC_BLOCK_MGMT_IO) || | |
3034 | (!(psli->sli_flag & LPFC_SLI_ACTIVE))) { | |
3035 | rc = -EACCES; | |
3036 | goto loopback_test_exit; | |
3037 | } | |
3038 | ||
3039 | if (!lpfc_is_link_up(phba) || !(phba->link_flag & LS_LOOPBACK_MODE)) { | |
3040 | rc = -EACCES; | |
3041 | goto loopback_test_exit; | |
3042 | } | |
3043 | ||
3044 | size = job->request_payload.payload_len; | |
3045 | full_size = size + ELX_LOOPBACK_HEADER_SZ; /* plus the header */ | |
3046 | ||
3047 | if ((size == 0) || (size > 80 * BUF_SZ_4K)) { | |
3048 | rc = -ERANGE; | |
3049 | goto loopback_test_exit; | |
3050 | } | |
3051 | ||
63e801ce | 3052 | if (full_size >= BUF_SZ_4K) { |
3b5dd52a JS |
3053 | /* |
3054 | * Allocate memory for ioctl data. If buffer is bigger than 64k, | |
3055 | * then we allocate 64k and re-use that buffer over and over to | |
3056 | * xfer the whole block. This is because Linux kernel has a | |
3057 | * problem allocating more than 120k of kernel space memory. Saw | |
3058 | * problem with GET_FCPTARGETMAPPING... | |
3059 | */ | |
3060 | if (size <= (64 * 1024)) | |
63e801ce | 3061 | total_mem = full_size; |
3b5dd52a JS |
3062 | else |
3063 | total_mem = 64 * 1024; | |
3064 | } else | |
3065 | /* Allocate memory for ioctl data */ | |
3066 | total_mem = BUF_SZ_4K; | |
3067 | ||
3068 | dataout = kmalloc(total_mem, GFP_KERNEL); | |
3069 | if (dataout == NULL) { | |
3070 | rc = -ENOMEM; | |
3071 | goto loopback_test_exit; | |
3072 | } | |
3073 | ||
3074 | ptr = dataout; | |
3075 | ptr += ELX_LOOPBACK_HEADER_SZ; | |
3076 | sg_copy_to_buffer(job->request_payload.sg_list, | |
3077 | job->request_payload.sg_cnt, | |
3078 | ptr, size); | |
3b5dd52a | 3079 | rc = lpfcdiag_loop_self_reg(phba, &rpi); |
d439d286 | 3080 | if (rc) |
3b5dd52a | 3081 | goto loopback_test_exit; |
3b5dd52a | 3082 | |
1b51197d JS |
3083 | if (phba->sli_rev < LPFC_SLI_REV4) { |
3084 | rc = lpfcdiag_loop_get_xri(phba, rpi, &txxri, &rxxri); | |
3085 | if (rc) { | |
3086 | lpfcdiag_loop_self_unreg(phba, rpi); | |
3087 | goto loopback_test_exit; | |
3088 | } | |
3b5dd52a | 3089 | |
1b51197d JS |
3090 | rc = lpfcdiag_loop_post_rxbufs(phba, rxxri, full_size); |
3091 | if (rc) { | |
3092 | lpfcdiag_loop_self_unreg(phba, rpi); | |
3093 | goto loopback_test_exit; | |
3094 | } | |
3b5dd52a | 3095 | } |
3b5dd52a JS |
3096 | evt = lpfc_bsg_event_new(FC_REG_CT_EVENT, current->pid, |
3097 | SLI_CT_ELX_LOOPBACK); | |
3098 | if (!evt) { | |
3099 | lpfcdiag_loop_self_unreg(phba, rpi); | |
3100 | rc = -ENOMEM; | |
3101 | goto loopback_test_exit; | |
3102 | } | |
3103 | ||
3104 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
3105 | list_add(&evt->node, &phba->ct_ev_waiters); | |
3106 | lpfc_bsg_event_ref(evt); | |
3107 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
3108 | ||
3109 | cmdiocbq = lpfc_sli_get_iocbq(phba); | |
1b51197d JS |
3110 | if (phba->sli_rev < LPFC_SLI_REV4) |
3111 | rspiocbq = lpfc_sli_get_iocbq(phba); | |
3b5dd52a JS |
3112 | txbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
3113 | ||
3114 | if (txbmp) { | |
3115 | txbmp->virt = lpfc_mbuf_alloc(phba, 0, &txbmp->phys); | |
c7495937 JS |
3116 | if (txbmp->virt) { |
3117 | INIT_LIST_HEAD(&txbmp->list); | |
3118 | txbpl = (struct ulp_bde64 *) txbmp->virt; | |
3b5dd52a JS |
3119 | txbuffer = diag_cmd_data_alloc(phba, |
3120 | txbpl, full_size, 0); | |
c7495937 | 3121 | } |
3b5dd52a JS |
3122 | } |
3123 | ||
1b51197d JS |
3124 | if (!cmdiocbq || !txbmp || !txbpl || !txbuffer || !txbmp->virt) { |
3125 | rc = -ENOMEM; | |
3126 | goto err_loopback_test_exit; | |
3127 | } | |
3128 | if ((phba->sli_rev < LPFC_SLI_REV4) && !rspiocbq) { | |
3b5dd52a JS |
3129 | rc = -ENOMEM; |
3130 | goto err_loopback_test_exit; | |
3131 | } | |
3132 | ||
3133 | cmd = &cmdiocbq->iocb; | |
1b51197d JS |
3134 | if (phba->sli_rev < LPFC_SLI_REV4) |
3135 | rsp = &rspiocbq->iocb; | |
3b5dd52a JS |
3136 | |
3137 | INIT_LIST_HEAD(&head); | |
3138 | list_add_tail(&head, &txbuffer->dma.list); | |
3139 | list_for_each_entry(curr, &head, list) { | |
3140 | segment_len = ((struct lpfc_dmabufext *)curr)->size; | |
3141 | if (current_offset == 0) { | |
3142 | ctreq = curr->virt; | |
3143 | memset(ctreq, 0, ELX_LOOPBACK_HEADER_SZ); | |
3144 | ctreq->RevisionId.bits.Revision = SLI_CT_REVISION; | |
3145 | ctreq->RevisionId.bits.InId = 0; | |
3146 | ctreq->FsType = SLI_CT_ELX_LOOPBACK; | |
3147 | ctreq->FsSubType = 0; | |
3148 | ctreq->CommandResponse.bits.CmdRsp = ELX_LOOPBACK_DATA; | |
3149 | ctreq->CommandResponse.bits.Size = size; | |
3150 | segment_offset = ELX_LOOPBACK_HEADER_SZ; | |
3151 | } else | |
3152 | segment_offset = 0; | |
3153 | ||
3154 | BUG_ON(segment_offset >= segment_len); | |
3155 | memcpy(curr->virt + segment_offset, | |
3156 | ptr + current_offset, | |
3157 | segment_len - segment_offset); | |
3158 | ||
3159 | current_offset += segment_len - segment_offset; | |
3160 | BUG_ON(current_offset > size); | |
3161 | } | |
3162 | list_del(&head); | |
3163 | ||
3164 | /* Build the XMIT_SEQUENCE iocb */ | |
3b5dd52a JS |
3165 | num_bde = (uint32_t)txbuffer->flag; |
3166 | ||
3167 | cmd->un.xseq64.bdl.addrHigh = putPaddrHigh(txbmp->phys); | |
3168 | cmd->un.xseq64.bdl.addrLow = putPaddrLow(txbmp->phys); | |
3169 | cmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; | |
3170 | cmd->un.xseq64.bdl.bdeSize = (num_bde * sizeof(struct ulp_bde64)); | |
3171 | ||
3172 | cmd->un.xseq64.w5.hcsw.Fctl = (LS | LA); | |
3173 | cmd->un.xseq64.w5.hcsw.Dfctl = 0; | |
3174 | cmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL; | |
3175 | cmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT; | |
3176 | ||
3177 | cmd->ulpCommand = CMD_XMIT_SEQUENCE64_CX; | |
3178 | cmd->ulpBdeCount = 1; | |
3179 | cmd->ulpLe = 1; | |
3180 | cmd->ulpClass = CLASS3; | |
3b5dd52a | 3181 | |
1b51197d JS |
3182 | if (phba->sli_rev < LPFC_SLI_REV4) { |
3183 | cmd->ulpContext = txxri; | |
3184 | } else { | |
3185 | cmd->un.xseq64.bdl.ulpIoTag32 = 0; | |
3186 | cmd->un.ulpWord[3] = phba->sli4_hba.rpi_ids[rpi]; | |
3187 | cmdiocbq->context3 = txbmp; | |
3188 | cmdiocbq->sli4_xritag = NO_XRI; | |
3189 | cmd->unsli3.rcvsli3.ox_id = 0xffff; | |
3190 | } | |
3b5dd52a | 3191 | cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC; |
6c7cf486 | 3192 | cmdiocbq->iocb_flag |= LPFC_IO_LOOPBACK; |
3b5dd52a | 3193 | cmdiocbq->vport = phba->pport; |
5a0916b4 | 3194 | cmdiocbq->iocb_cmpl = NULL; |
d439d286 JS |
3195 | iocb_stat = lpfc_sli_issue_iocb_wait(phba, LPFC_ELS_RING, cmdiocbq, |
3196 | rspiocbq, (phba->fc_ratov * 2) + | |
3197 | LPFC_DRVR_TIMEOUT); | |
3b5dd52a | 3198 | |
53151bbb JS |
3199 | if ((iocb_stat != IOCB_SUCCESS) || |
3200 | ((phba->sli_rev < LPFC_SLI_REV4) && | |
3201 | (rsp->ulpStatus != IOSTAT_SUCCESS))) { | |
1b51197d JS |
3202 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, |
3203 | "3126 Failed loopback test issue iocb: " | |
3204 | "iocb_stat:x%x\n", iocb_stat); | |
3b5dd52a JS |
3205 | rc = -EIO; |
3206 | goto err_loopback_test_exit; | |
3207 | } | |
3208 | ||
3209 | evt->waiting = 1; | |
d439d286 | 3210 | time_left = wait_event_interruptible_timeout( |
3b5dd52a | 3211 | evt->wq, !list_empty(&evt->events_to_see), |
256ec0d0 JS |
3212 | msecs_to_jiffies(1000 * |
3213 | ((phba->fc_ratov * 2) + LPFC_DRVR_TIMEOUT))); | |
3b5dd52a | 3214 | evt->waiting = 0; |
1b51197d | 3215 | if (list_empty(&evt->events_to_see)) { |
d439d286 | 3216 | rc = (time_left) ? -EINTR : -ETIMEDOUT; |
1b51197d JS |
3217 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, |
3218 | "3125 Not receiving unsolicited event, " | |
3219 | "rc:x%x\n", rc); | |
3220 | } else { | |
3b5dd52a JS |
3221 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
3222 | list_move(evt->events_to_see.prev, &evt->events_to_get); | |
3223 | evdat = list_entry(evt->events_to_get.prev, | |
3224 | typeof(*evdat), node); | |
3225 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
3226 | rx_databuf = evdat->data; | |
3227 | if (evdat->len != full_size) { | |
3228 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, | |
3229 | "1603 Loopback test did not receive expected " | |
3230 | "data length. actual length 0x%x expected " | |
3231 | "length 0x%x\n", | |
3232 | evdat->len, full_size); | |
3233 | rc = -EIO; | |
3234 | } else if (rx_databuf == NULL) | |
3235 | rc = -EIO; | |
3236 | else { | |
3237 | rc = IOCB_SUCCESS; | |
3238 | /* skip over elx loopback header */ | |
3239 | rx_databuf += ELX_LOOPBACK_HEADER_SZ; | |
3240 | job->reply->reply_payload_rcv_len = | |
3241 | sg_copy_from_buffer(job->reply_payload.sg_list, | |
3242 | job->reply_payload.sg_cnt, | |
3243 | rx_databuf, size); | |
3244 | job->reply->reply_payload_rcv_len = size; | |
3245 | } | |
3246 | } | |
3247 | ||
3248 | err_loopback_test_exit: | |
3249 | lpfcdiag_loop_self_unreg(phba, rpi); | |
3250 | ||
3251 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
3252 | lpfc_bsg_event_unref(evt); /* release ref */ | |
3253 | lpfc_bsg_event_unref(evt); /* delete */ | |
3254 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
3255 | ||
5a0916b4 | 3256 | if ((cmdiocbq != NULL) && (iocb_stat != IOCB_TIMEDOUT)) |
3b5dd52a JS |
3257 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
3258 | ||
3259 | if (rspiocbq != NULL) | |
3260 | lpfc_sli_release_iocbq(phba, rspiocbq); | |
3261 | ||
3262 | if (txbmp != NULL) { | |
3263 | if (txbpl != NULL) { | |
3264 | if (txbuffer != NULL) | |
3265 | diag_cmd_data_free(phba, txbuffer); | |
3266 | lpfc_mbuf_free(phba, txbmp->virt, txbmp->phys); | |
3267 | } | |
3268 | kfree(txbmp); | |
3269 | } | |
3270 | ||
3271 | loopback_test_exit: | |
3272 | kfree(dataout); | |
3273 | /* make error code available to userspace */ | |
3274 | job->reply->result = rc; | |
3275 | job->dd_data = NULL; | |
3276 | /* complete the job back to userspace if no error */ | |
1b51197d | 3277 | if (rc == IOCB_SUCCESS) |
3b5dd52a JS |
3278 | job->job_done(job); |
3279 | return rc; | |
3280 | } | |
3281 | ||
3282 | /** | |
3283 | * lpfc_bsg_get_dfc_rev - process a GET_DFC_REV bsg vendor command | |
3284 | * @job: GET_DFC_REV fc_bsg_job | |
3285 | **/ | |
3286 | static int | |
3287 | lpfc_bsg_get_dfc_rev(struct fc_bsg_job *job) | |
3288 | { | |
3289 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
3290 | struct lpfc_hba *phba = vport->phba; | |
3b5dd52a JS |
3291 | struct get_mgmt_rev_reply *event_reply; |
3292 | int rc = 0; | |
3293 | ||
3294 | if (job->request_len < | |
3295 | sizeof(struct fc_bsg_request) + sizeof(struct get_mgmt_rev)) { | |
3296 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
3297 | "2740 Received GET_DFC_REV request below " | |
3298 | "minimum size\n"); | |
3299 | rc = -EINVAL; | |
3300 | goto job_error; | |
3301 | } | |
3302 | ||
3b5dd52a JS |
3303 | event_reply = (struct get_mgmt_rev_reply *) |
3304 | job->reply->reply_data.vendor_reply.vendor_rsp; | |
3305 | ||
3306 | if (job->reply_len < | |
3307 | sizeof(struct fc_bsg_request) + sizeof(struct get_mgmt_rev_reply)) { | |
3308 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
3309 | "2741 Received GET_DFC_REV reply below " | |
3310 | "minimum size\n"); | |
3311 | rc = -EINVAL; | |
3312 | goto job_error; | |
3313 | } | |
3314 | ||
3315 | event_reply->info.a_Major = MANAGEMENT_MAJOR_REV; | |
3316 | event_reply->info.a_Minor = MANAGEMENT_MINOR_REV; | |
3317 | job_error: | |
3318 | job->reply->result = rc; | |
3319 | if (rc == 0) | |
3320 | job->job_done(job); | |
3321 | return rc; | |
3322 | } | |
3323 | ||
3324 | /** | |
7ad20aa9 | 3325 | * lpfc_bsg_issue_mbox_cmpl - lpfc_bsg_issue_mbox mbox completion handler |
3b5dd52a JS |
3326 | * @phba: Pointer to HBA context object. |
3327 | * @pmboxq: Pointer to mailbox command. | |
3328 | * | |
3329 | * This is completion handler function for mailbox commands issued from | |
3330 | * lpfc_bsg_issue_mbox function. This function is called by the | |
3331 | * mailbox event handler function with no lock held. This function | |
3332 | * will wake up thread waiting on the wait queue pointed by context1 | |
3333 | * of the mailbox. | |
3334 | **/ | |
9ab9b134 | 3335 | static void |
7ad20aa9 | 3336 | lpfc_bsg_issue_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) |
3b5dd52a JS |
3337 | { |
3338 | struct bsg_job_data *dd_data; | |
3b5dd52a JS |
3339 | struct fc_bsg_job *job; |
3340 | uint32_t size; | |
3341 | unsigned long flags; | |
7ad20aa9 | 3342 | uint8_t *pmb, *pmb_buf; |
3b5dd52a | 3343 | |
3b5dd52a | 3344 | dd_data = pmboxq->context1; |
3b5dd52a | 3345 | |
7ad20aa9 JS |
3346 | /* |
3347 | * The outgoing buffer is readily referred from the dma buffer, | |
3348 | * just need to get header part from mailboxq structure. | |
7a470277 | 3349 | */ |
7ad20aa9 JS |
3350 | pmb = (uint8_t *)&pmboxq->u.mb; |
3351 | pmb_buf = (uint8_t *)dd_data->context_un.mbox.mb; | |
3352 | memcpy(pmb_buf, pmb, sizeof(MAILBOX_t)); | |
7a470277 | 3353 | |
a33c4f7b JS |
3354 | /* Determine if job has been aborted */ |
3355 | ||
3356 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
3357 | job = dd_data->set_job; | |
3358 | if (job) { | |
3359 | /* Prevent timeout handling from trying to abort job */ | |
3360 | job->dd_data = NULL; | |
3361 | } | |
3362 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
3363 | ||
3364 | /* Copy the mailbox data to the job if it is still active */ | |
3365 | ||
5a6f133e JS |
3366 | if (job) { |
3367 | size = job->reply_payload.payload_len; | |
3368 | job->reply->reply_payload_rcv_len = | |
3369 | sg_copy_from_buffer(job->reply_payload.sg_list, | |
7ad20aa9 JS |
3370 | job->reply_payload.sg_cnt, |
3371 | pmb_buf, size); | |
5a6f133e | 3372 | } |
7a470277 | 3373 | |
a33c4f7b | 3374 | dd_data->set_job = NULL; |
3b5dd52a | 3375 | mempool_free(dd_data->context_un.mbox.pmboxq, phba->mbox_mem_pool); |
7ad20aa9 JS |
3376 | lpfc_bsg_dma_page_free(phba, dd_data->context_un.mbox.dmabuffers); |
3377 | kfree(dd_data); | |
3378 | ||
a33c4f7b JS |
3379 | /* Complete the job if the job is still active */ |
3380 | ||
7ad20aa9 JS |
3381 | if (job) { |
3382 | job->reply->result = 0; | |
3383 | job->job_done(job); | |
3384 | } | |
3385 | return; | |
3386 | } | |
3387 | ||
3388 | /** | |
3389 | * lpfc_bsg_check_cmd_access - test for a supported mailbox command | |
3390 | * @phba: Pointer to HBA context object. | |
3391 | * @mb: Pointer to a mailbox object. | |
3392 | * @vport: Pointer to a vport object. | |
3393 | * | |
3394 | * Some commands require the port to be offline, some may not be called from | |
3395 | * the application. | |
3396 | **/ | |
3397 | static int lpfc_bsg_check_cmd_access(struct lpfc_hba *phba, | |
3398 | MAILBOX_t *mb, struct lpfc_vport *vport) | |
3399 | { | |
3400 | /* return negative error values for bsg job */ | |
3401 | switch (mb->mbxCommand) { | |
3402 | /* Offline only */ | |
3403 | case MBX_INIT_LINK: | |
3404 | case MBX_DOWN_LINK: | |
3405 | case MBX_CONFIG_LINK: | |
3406 | case MBX_CONFIG_RING: | |
3407 | case MBX_RESET_RING: | |
3408 | case MBX_UNREG_LOGIN: | |
3409 | case MBX_CLEAR_LA: | |
3410 | case MBX_DUMP_CONTEXT: | |
3411 | case MBX_RUN_DIAGS: | |
3412 | case MBX_RESTART: | |
3413 | case MBX_SET_MASK: | |
3414 | if (!(vport->fc_flag & FC_OFFLINE_MODE)) { | |
3415 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
3416 | "2743 Command 0x%x is illegal in on-line " | |
3417 | "state\n", | |
3418 | mb->mbxCommand); | |
3419 | return -EPERM; | |
3420 | } | |
3421 | case MBX_WRITE_NV: | |
3422 | case MBX_WRITE_VPARMS: | |
3423 | case MBX_LOAD_SM: | |
3424 | case MBX_READ_NV: | |
3425 | case MBX_READ_CONFIG: | |
3426 | case MBX_READ_RCONFIG: | |
3427 | case MBX_READ_STATUS: | |
3428 | case MBX_READ_XRI: | |
3429 | case MBX_READ_REV: | |
3430 | case MBX_READ_LNK_STAT: | |
3431 | case MBX_DUMP_MEMORY: | |
3432 | case MBX_DOWN_LOAD: | |
3433 | case MBX_UPDATE_CFG: | |
3434 | case MBX_KILL_BOARD: | |
06f35551 | 3435 | case MBX_READ_TOPOLOGY: |
7ad20aa9 JS |
3436 | case MBX_LOAD_AREA: |
3437 | case MBX_LOAD_EXP_ROM: | |
3438 | case MBX_BEACON: | |
3439 | case MBX_DEL_LD_ENTRY: | |
3440 | case MBX_SET_DEBUG: | |
3441 | case MBX_WRITE_WWN: | |
3442 | case MBX_SLI4_CONFIG: | |
3443 | case MBX_READ_EVENT_LOG: | |
3444 | case MBX_READ_EVENT_LOG_STATUS: | |
3445 | case MBX_WRITE_EVENT_LOG: | |
3446 | case MBX_PORT_CAPABILITIES: | |
3447 | case MBX_PORT_IOV_CONTROL: | |
3448 | case MBX_RUN_BIU_DIAG64: | |
3449 | break; | |
3450 | case MBX_SET_VARIABLE: | |
3451 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
3452 | "1226 mbox: set_variable 0x%x, 0x%x\n", | |
3453 | mb->un.varWords[0], | |
3454 | mb->un.varWords[1]); | |
3455 | if ((mb->un.varWords[0] == SETVAR_MLOMNT) | |
3456 | && (mb->un.varWords[1] == 1)) { | |
3457 | phba->wait_4_mlo_maint_flg = 1; | |
3458 | } else if (mb->un.varWords[0] == SETVAR_MLORST) { | |
1b51197d | 3459 | spin_lock_irq(&phba->hbalock); |
7ad20aa9 | 3460 | phba->link_flag &= ~LS_LOOPBACK_MODE; |
1b51197d | 3461 | spin_unlock_irq(&phba->hbalock); |
7ad20aa9 JS |
3462 | phba->fc_topology = LPFC_TOPOLOGY_PT_PT; |
3463 | } | |
3464 | break; | |
3465 | case MBX_READ_SPARM64: | |
7ad20aa9 JS |
3466 | case MBX_REG_LOGIN: |
3467 | case MBX_REG_LOGIN64: | |
3468 | case MBX_CONFIG_PORT: | |
3469 | case MBX_RUN_BIU_DIAG: | |
3470 | default: | |
3471 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
3472 | "2742 Unknown Command 0x%x\n", | |
3473 | mb->mbxCommand); | |
3474 | return -EPERM; | |
3475 | } | |
3476 | ||
3477 | return 0; /* ok */ | |
3478 | } | |
3479 | ||
3480 | /** | |
3481 | * lpfc_bsg_mbox_ext_cleanup - clean up context of multi-buffer mbox session | |
3482 | * @phba: Pointer to HBA context object. | |
3483 | * | |
3484 | * This is routine clean up and reset BSG handling of multi-buffer mbox | |
3485 | * command session. | |
3486 | **/ | |
3487 | static void | |
3488 | lpfc_bsg_mbox_ext_session_reset(struct lpfc_hba *phba) | |
3489 | { | |
3490 | if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_IDLE) | |
3491 | return; | |
3492 | ||
3493 | /* free all memory, including dma buffers */ | |
3494 | lpfc_bsg_dma_page_list_free(phba, | |
3495 | &phba->mbox_ext_buf_ctx.ext_dmabuf_list); | |
3496 | lpfc_bsg_dma_page_free(phba, phba->mbox_ext_buf_ctx.mbx_dmabuf); | |
3497 | /* multi-buffer write mailbox command pass-through complete */ | |
3498 | memset((char *)&phba->mbox_ext_buf_ctx, 0, | |
3499 | sizeof(struct lpfc_mbox_ext_buf_ctx)); | |
3500 | INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list); | |
3501 | ||
3502 | return; | |
3503 | } | |
3504 | ||
3505 | /** | |
3506 | * lpfc_bsg_issue_mbox_ext_handle_job - job handler for multi-buffer mbox cmpl | |
3507 | * @phba: Pointer to HBA context object. | |
3508 | * @pmboxq: Pointer to mailbox command. | |
3509 | * | |
3510 | * This is routine handles BSG job for mailbox commands completions with | |
3511 | * multiple external buffers. | |
3512 | **/ | |
3513 | static struct fc_bsg_job * | |
3514 | lpfc_bsg_issue_mbox_ext_handle_job(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) | |
3515 | { | |
3516 | struct bsg_job_data *dd_data; | |
3517 | struct fc_bsg_job *job; | |
3518 | uint8_t *pmb, *pmb_buf; | |
3519 | unsigned long flags; | |
3520 | uint32_t size; | |
3521 | int rc = 0; | |
026abb87 JS |
3522 | struct lpfc_dmabuf *dmabuf; |
3523 | struct lpfc_sli_config_mbox *sli_cfg_mbx; | |
3524 | uint8_t *pmbx; | |
7ad20aa9 | 3525 | |
7ad20aa9 | 3526 | dd_data = pmboxq->context1; |
a33c4f7b JS |
3527 | |
3528 | /* Determine if job has been aborted */ | |
3529 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
3530 | job = dd_data->set_job; | |
3531 | if (job) { | |
3532 | /* Prevent timeout handling from trying to abort job */ | |
3533 | job->dd_data = NULL; | |
7ad20aa9 | 3534 | } |
a33c4f7b | 3535 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
7ad20aa9 JS |
3536 | |
3537 | /* | |
3538 | * The outgoing buffer is readily referred from the dma buffer, | |
3539 | * just need to get header part from mailboxq structure. | |
3540 | */ | |
a33c4f7b | 3541 | |
7ad20aa9 JS |
3542 | pmb = (uint8_t *)&pmboxq->u.mb; |
3543 | pmb_buf = (uint8_t *)dd_data->context_un.mbox.mb; | |
026abb87 | 3544 | /* Copy the byte swapped response mailbox back to the user */ |
7ad20aa9 | 3545 | memcpy(pmb_buf, pmb, sizeof(MAILBOX_t)); |
026abb87 JS |
3546 | /* if there is any non-embedded extended data copy that too */ |
3547 | dmabuf = phba->mbox_ext_buf_ctx.mbx_dmabuf; | |
3548 | sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt; | |
3549 | if (!bsg_bf_get(lpfc_mbox_hdr_emb, | |
3550 | &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr)) { | |
3551 | pmbx = (uint8_t *)dmabuf->virt; | |
3552 | /* byte swap the extended data following the mailbox command */ | |
3553 | lpfc_sli_pcimem_bcopy(&pmbx[sizeof(MAILBOX_t)], | |
3554 | &pmbx[sizeof(MAILBOX_t)], | |
3555 | sli_cfg_mbx->un.sli_config_emb0_subsys.mse[0].buf_len); | |
3556 | } | |
7ad20aa9 | 3557 | |
a33c4f7b JS |
3558 | /* Complete the job if the job is still active */ |
3559 | ||
7ad20aa9 JS |
3560 | if (job) { |
3561 | size = job->reply_payload.payload_len; | |
3562 | job->reply->reply_payload_rcv_len = | |
3563 | sg_copy_from_buffer(job->reply_payload.sg_list, | |
3564 | job->reply_payload.sg_cnt, | |
3565 | pmb_buf, size); | |
a33c4f7b | 3566 | |
7ad20aa9 JS |
3567 | /* result for successful */ |
3568 | job->reply->result = 0; | |
a33c4f7b | 3569 | |
7ad20aa9 JS |
3570 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
3571 | "2937 SLI_CONFIG ext-buffer maibox command " | |
3572 | "(x%x/x%x) complete bsg job done, bsize:%d\n", | |
3573 | phba->mbox_ext_buf_ctx.nembType, | |
3574 | phba->mbox_ext_buf_ctx.mboxType, size); | |
b76f2dc9 JS |
3575 | lpfc_idiag_mbxacc_dump_bsg_mbox(phba, |
3576 | phba->mbox_ext_buf_ctx.nembType, | |
3577 | phba->mbox_ext_buf_ctx.mboxType, | |
3578 | dma_ebuf, sta_pos_addr, | |
3579 | phba->mbox_ext_buf_ctx.mbx_dmabuf, 0); | |
a33c4f7b | 3580 | } else { |
7ad20aa9 JS |
3581 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, |
3582 | "2938 SLI_CONFIG ext-buffer maibox " | |
3583 | "command (x%x/x%x) failure, rc:x%x\n", | |
3584 | phba->mbox_ext_buf_ctx.nembType, | |
3585 | phba->mbox_ext_buf_ctx.mboxType, rc); | |
a33c4f7b JS |
3586 | } |
3587 | ||
3588 | ||
7ad20aa9 JS |
3589 | /* state change */ |
3590 | phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_DONE; | |
3591 | kfree(dd_data); | |
7ad20aa9 JS |
3592 | return job; |
3593 | } | |
3594 | ||
3595 | /** | |
3596 | * lpfc_bsg_issue_read_mbox_ext_cmpl - compl handler for multi-buffer read mbox | |
3597 | * @phba: Pointer to HBA context object. | |
3598 | * @pmboxq: Pointer to mailbox command. | |
3599 | * | |
3600 | * This is completion handler function for mailbox read commands with multiple | |
3601 | * external buffers. | |
3602 | **/ | |
3603 | static void | |
3604 | lpfc_bsg_issue_read_mbox_ext_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) | |
3605 | { | |
3606 | struct fc_bsg_job *job; | |
3607 | ||
a33c4f7b JS |
3608 | job = lpfc_bsg_issue_mbox_ext_handle_job(phba, pmboxq); |
3609 | ||
7ad20aa9 | 3610 | /* handle the BSG job with mailbox command */ |
a33c4f7b | 3611 | if (!job) |
7ad20aa9 JS |
3612 | pmboxq->u.mb.mbxStatus = MBXERR_ERROR; |
3613 | ||
3614 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
3615 | "2939 SLI_CONFIG ext-buffer rd maibox command " | |
3616 | "complete, ctxState:x%x, mbxStatus:x%x\n", | |
3617 | phba->mbox_ext_buf_ctx.state, pmboxq->u.mb.mbxStatus); | |
3618 | ||
7ad20aa9 JS |
3619 | if (pmboxq->u.mb.mbxStatus || phba->mbox_ext_buf_ctx.numBuf == 1) |
3620 | lpfc_bsg_mbox_ext_session_reset(phba); | |
3621 | ||
3622 | /* free base driver mailbox structure memory */ | |
3623 | mempool_free(pmboxq, phba->mbox_mem_pool); | |
3624 | ||
a33c4f7b | 3625 | /* if the job is still active, call job done */ |
7ad20aa9 JS |
3626 | if (job) |
3627 | job->job_done(job); | |
3628 | ||
3629 | return; | |
3630 | } | |
3631 | ||
3632 | /** | |
3633 | * lpfc_bsg_issue_write_mbox_ext_cmpl - cmpl handler for multi-buffer write mbox | |
3634 | * @phba: Pointer to HBA context object. | |
3635 | * @pmboxq: Pointer to mailbox command. | |
3636 | * | |
3637 | * This is completion handler function for mailbox write commands with multiple | |
3638 | * external buffers. | |
3639 | **/ | |
3640 | static void | |
3641 | lpfc_bsg_issue_write_mbox_ext_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) | |
3642 | { | |
3643 | struct fc_bsg_job *job; | |
3644 | ||
a33c4f7b JS |
3645 | job = lpfc_bsg_issue_mbox_ext_handle_job(phba, pmboxq); |
3646 | ||
7ad20aa9 | 3647 | /* handle the BSG job with the mailbox command */ |
a33c4f7b | 3648 | if (!job) |
7ad20aa9 JS |
3649 | pmboxq->u.mb.mbxStatus = MBXERR_ERROR; |
3650 | ||
3651 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
3652 | "2940 SLI_CONFIG ext-buffer wr maibox command " | |
3653 | "complete, ctxState:x%x, mbxStatus:x%x\n", | |
3654 | phba->mbox_ext_buf_ctx.state, pmboxq->u.mb.mbxStatus); | |
3655 | ||
7ad20aa9 JS |
3656 | /* free all memory, including dma buffers */ |
3657 | mempool_free(pmboxq, phba->mbox_mem_pool); | |
3658 | lpfc_bsg_mbox_ext_session_reset(phba); | |
3659 | ||
a33c4f7b | 3660 | /* if the job is still active, call job done */ |
7ad20aa9 JS |
3661 | if (job) |
3662 | job->job_done(job); | |
3663 | ||
3664 | return; | |
3665 | } | |
3666 | ||
3667 | static void | |
3668 | lpfc_bsg_sli_cfg_dma_desc_setup(struct lpfc_hba *phba, enum nemb_type nemb_tp, | |
3669 | uint32_t index, struct lpfc_dmabuf *mbx_dmabuf, | |
3670 | struct lpfc_dmabuf *ext_dmabuf) | |
3671 | { | |
3672 | struct lpfc_sli_config_mbox *sli_cfg_mbx; | |
3673 | ||
3674 | /* pointer to the start of mailbox command */ | |
3675 | sli_cfg_mbx = (struct lpfc_sli_config_mbox *)mbx_dmabuf->virt; | |
3676 | ||
3677 | if (nemb_tp == nemb_mse) { | |
3678 | if (index == 0) { | |
3679 | sli_cfg_mbx->un.sli_config_emb0_subsys. | |
3680 | mse[index].pa_hi = | |
3681 | putPaddrHigh(mbx_dmabuf->phys + | |
3682 | sizeof(MAILBOX_t)); | |
3683 | sli_cfg_mbx->un.sli_config_emb0_subsys. | |
3684 | mse[index].pa_lo = | |
3685 | putPaddrLow(mbx_dmabuf->phys + | |
3686 | sizeof(MAILBOX_t)); | |
3687 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
3688 | "2943 SLI_CONFIG(mse)[%d], " | |
3689 | "bufLen:%d, addrHi:x%x, addrLo:x%x\n", | |
3690 | index, | |
3691 | sli_cfg_mbx->un.sli_config_emb0_subsys. | |
3692 | mse[index].buf_len, | |
3693 | sli_cfg_mbx->un.sli_config_emb0_subsys. | |
3694 | mse[index].pa_hi, | |
3695 | sli_cfg_mbx->un.sli_config_emb0_subsys. | |
3696 | mse[index].pa_lo); | |
3697 | } else { | |
3698 | sli_cfg_mbx->un.sli_config_emb0_subsys. | |
3699 | mse[index].pa_hi = | |
3700 | putPaddrHigh(ext_dmabuf->phys); | |
3701 | sli_cfg_mbx->un.sli_config_emb0_subsys. | |
3702 | mse[index].pa_lo = | |
3703 | putPaddrLow(ext_dmabuf->phys); | |
3704 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
3705 | "2944 SLI_CONFIG(mse)[%d], " | |
3706 | "bufLen:%d, addrHi:x%x, addrLo:x%x\n", | |
3707 | index, | |
3708 | sli_cfg_mbx->un.sli_config_emb0_subsys. | |
3709 | mse[index].buf_len, | |
3710 | sli_cfg_mbx->un.sli_config_emb0_subsys. | |
3711 | mse[index].pa_hi, | |
3712 | sli_cfg_mbx->un.sli_config_emb0_subsys. | |
3713 | mse[index].pa_lo); | |
3714 | } | |
3715 | } else { | |
3716 | if (index == 0) { | |
3717 | sli_cfg_mbx->un.sli_config_emb1_subsys. | |
3718 | hbd[index].pa_hi = | |
3719 | putPaddrHigh(mbx_dmabuf->phys + | |
3720 | sizeof(MAILBOX_t)); | |
3721 | sli_cfg_mbx->un.sli_config_emb1_subsys. | |
3722 | hbd[index].pa_lo = | |
3723 | putPaddrLow(mbx_dmabuf->phys + | |
3724 | sizeof(MAILBOX_t)); | |
3725 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
3726 | "3007 SLI_CONFIG(hbd)[%d], " | |
3727 | "bufLen:%d, addrHi:x%x, addrLo:x%x\n", | |
3728 | index, | |
3729 | bsg_bf_get(lpfc_mbox_sli_config_ecmn_hbd_len, | |
3730 | &sli_cfg_mbx->un. | |
3731 | sli_config_emb1_subsys.hbd[index]), | |
3732 | sli_cfg_mbx->un.sli_config_emb1_subsys. | |
3733 | hbd[index].pa_hi, | |
3734 | sli_cfg_mbx->un.sli_config_emb1_subsys. | |
3735 | hbd[index].pa_lo); | |
3736 | ||
3737 | } else { | |
3738 | sli_cfg_mbx->un.sli_config_emb1_subsys. | |
3739 | hbd[index].pa_hi = | |
3740 | putPaddrHigh(ext_dmabuf->phys); | |
3741 | sli_cfg_mbx->un.sli_config_emb1_subsys. | |
3742 | hbd[index].pa_lo = | |
3743 | putPaddrLow(ext_dmabuf->phys); | |
3744 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
3745 | "3008 SLI_CONFIG(hbd)[%d], " | |
3746 | "bufLen:%d, addrHi:x%x, addrLo:x%x\n", | |
3747 | index, | |
3748 | bsg_bf_get(lpfc_mbox_sli_config_ecmn_hbd_len, | |
3749 | &sli_cfg_mbx->un. | |
3750 | sli_config_emb1_subsys.hbd[index]), | |
3751 | sli_cfg_mbx->un.sli_config_emb1_subsys. | |
3752 | hbd[index].pa_hi, | |
3753 | sli_cfg_mbx->un.sli_config_emb1_subsys. | |
3754 | hbd[index].pa_lo); | |
3755 | } | |
3756 | } | |
3757 | return; | |
3758 | } | |
3759 | ||
3760 | /** | |
3761 | * lpfc_bsg_sli_cfg_mse_read_cmd_ext - sli_config non-embedded mailbox cmd read | |
3762 | * @phba: Pointer to HBA context object. | |
3763 | * @mb: Pointer to a BSG mailbox object. | |
3764 | * @nemb_tp: Enumerate of non-embedded mailbox command type. | |
3765 | * @dmabuff: Pointer to a DMA buffer descriptor. | |
3766 | * | |
3767 | * This routine performs SLI_CONFIG (0x9B) read mailbox command operation with | |
3768 | * non-embedded external bufffers. | |
3769 | **/ | |
3770 | static int | |
3771 | lpfc_bsg_sli_cfg_read_cmd_ext(struct lpfc_hba *phba, struct fc_bsg_job *job, | |
3772 | enum nemb_type nemb_tp, | |
3773 | struct lpfc_dmabuf *dmabuf) | |
3774 | { | |
3775 | struct lpfc_sli_config_mbox *sli_cfg_mbx; | |
3776 | struct dfc_mbox_req *mbox_req; | |
3777 | struct lpfc_dmabuf *curr_dmabuf, *next_dmabuf; | |
3778 | uint32_t ext_buf_cnt, ext_buf_index; | |
3779 | struct lpfc_dmabuf *ext_dmabuf = NULL; | |
3780 | struct bsg_job_data *dd_data = NULL; | |
3781 | LPFC_MBOXQ_t *pmboxq = NULL; | |
3782 | MAILBOX_t *pmb; | |
3783 | uint8_t *pmbx; | |
3784 | int rc, i; | |
3785 | ||
3786 | mbox_req = | |
3787 | (struct dfc_mbox_req *)job->request->rqst_data.h_vendor.vendor_cmd; | |
3788 | ||
3789 | /* pointer to the start of mailbox command */ | |
3790 | sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt; | |
3791 | ||
3792 | if (nemb_tp == nemb_mse) { | |
3793 | ext_buf_cnt = bsg_bf_get(lpfc_mbox_hdr_mse_cnt, | |
3794 | &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr); | |
3795 | if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_MSE) { | |
3796 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, | |
3797 | "2945 Handled SLI_CONFIG(mse) rd, " | |
3798 | "ext_buf_cnt(%d) out of range(%d)\n", | |
3799 | ext_buf_cnt, | |
3800 | LPFC_MBX_SLI_CONFIG_MAX_MSE); | |
3801 | rc = -ERANGE; | |
3802 | goto job_error; | |
3803 | } | |
3804 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
3805 | "2941 Handled SLI_CONFIG(mse) rd, " | |
3806 | "ext_buf_cnt:%d\n", ext_buf_cnt); | |
3807 | } else { | |
3808 | /* sanity check on interface type for support */ | |
3809 | if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != | |
3810 | LPFC_SLI_INTF_IF_TYPE_2) { | |
3811 | rc = -ENODEV; | |
3812 | goto job_error; | |
3813 | } | |
3814 | /* nemb_tp == nemb_hbd */ | |
3815 | ext_buf_cnt = sli_cfg_mbx->un.sli_config_emb1_subsys.hbd_count; | |
3816 | if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_HBD) { | |
3817 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, | |
3818 | "2946 Handled SLI_CONFIG(hbd) rd, " | |
3819 | "ext_buf_cnt(%d) out of range(%d)\n", | |
3820 | ext_buf_cnt, | |
3821 | LPFC_MBX_SLI_CONFIG_MAX_HBD); | |
3822 | rc = -ERANGE; | |
3823 | goto job_error; | |
3824 | } | |
3825 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
3826 | "2942 Handled SLI_CONFIG(hbd) rd, " | |
3827 | "ext_buf_cnt:%d\n", ext_buf_cnt); | |
3828 | } | |
3829 | ||
b76f2dc9 JS |
3830 | /* before dma descriptor setup */ |
3831 | lpfc_idiag_mbxacc_dump_bsg_mbox(phba, nemb_tp, mbox_rd, dma_mbox, | |
3832 | sta_pre_addr, dmabuf, ext_buf_cnt); | |
3833 | ||
7ad20aa9 JS |
3834 | /* reject non-embedded mailbox command with none external buffer */ |
3835 | if (ext_buf_cnt == 0) { | |
3836 | rc = -EPERM; | |
3837 | goto job_error; | |
3838 | } else if (ext_buf_cnt > 1) { | |
3839 | /* additional external read buffers */ | |
3840 | for (i = 1; i < ext_buf_cnt; i++) { | |
3841 | ext_dmabuf = lpfc_bsg_dma_page_alloc(phba); | |
3842 | if (!ext_dmabuf) { | |
3843 | rc = -ENOMEM; | |
3844 | goto job_error; | |
3845 | } | |
3846 | list_add_tail(&ext_dmabuf->list, | |
3847 | &phba->mbox_ext_buf_ctx.ext_dmabuf_list); | |
3848 | } | |
3849 | } | |
3850 | ||
3851 | /* bsg tracking structure */ | |
3852 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); | |
3853 | if (!dd_data) { | |
3854 | rc = -ENOMEM; | |
3855 | goto job_error; | |
3856 | } | |
3857 | ||
3858 | /* mailbox command structure for base driver */ | |
3859 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
3860 | if (!pmboxq) { | |
3861 | rc = -ENOMEM; | |
3862 | goto job_error; | |
3863 | } | |
3864 | memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); | |
3865 | ||
3866 | /* for the first external buffer */ | |
3867 | lpfc_bsg_sli_cfg_dma_desc_setup(phba, nemb_tp, 0, dmabuf, dmabuf); | |
3868 | ||
3869 | /* for the rest of external buffer descriptors if any */ | |
3870 | if (ext_buf_cnt > 1) { | |
3871 | ext_buf_index = 1; | |
3872 | list_for_each_entry_safe(curr_dmabuf, next_dmabuf, | |
3873 | &phba->mbox_ext_buf_ctx.ext_dmabuf_list, list) { | |
3874 | lpfc_bsg_sli_cfg_dma_desc_setup(phba, nemb_tp, | |
3875 | ext_buf_index, dmabuf, | |
3876 | curr_dmabuf); | |
3877 | ext_buf_index++; | |
3878 | } | |
3879 | } | |
3880 | ||
b76f2dc9 JS |
3881 | /* after dma descriptor setup */ |
3882 | lpfc_idiag_mbxacc_dump_bsg_mbox(phba, nemb_tp, mbox_rd, dma_mbox, | |
3883 | sta_pos_addr, dmabuf, ext_buf_cnt); | |
3884 | ||
7ad20aa9 JS |
3885 | /* construct base driver mbox command */ |
3886 | pmb = &pmboxq->u.mb; | |
3887 | pmbx = (uint8_t *)dmabuf->virt; | |
3888 | memcpy(pmb, pmbx, sizeof(*pmb)); | |
3889 | pmb->mbxOwner = OWN_HOST; | |
3890 | pmboxq->vport = phba->pport; | |
3891 | ||
3892 | /* multi-buffer handling context */ | |
3893 | phba->mbox_ext_buf_ctx.nembType = nemb_tp; | |
3894 | phba->mbox_ext_buf_ctx.mboxType = mbox_rd; | |
3895 | phba->mbox_ext_buf_ctx.numBuf = ext_buf_cnt; | |
3896 | phba->mbox_ext_buf_ctx.mbxTag = mbox_req->extMboxTag; | |
3897 | phba->mbox_ext_buf_ctx.seqNum = mbox_req->extSeqNum; | |
3898 | phba->mbox_ext_buf_ctx.mbx_dmabuf = dmabuf; | |
3899 | ||
3900 | /* callback for multi-buffer read mailbox command */ | |
3901 | pmboxq->mbox_cmpl = lpfc_bsg_issue_read_mbox_ext_cmpl; | |
3902 | ||
3903 | /* context fields to callback function */ | |
3904 | pmboxq->context1 = dd_data; | |
3905 | dd_data->type = TYPE_MBOX; | |
a33c4f7b | 3906 | dd_data->set_job = job; |
7ad20aa9 JS |
3907 | dd_data->context_un.mbox.pmboxq = pmboxq; |
3908 | dd_data->context_un.mbox.mb = (MAILBOX_t *)pmbx; | |
7ad20aa9 JS |
3909 | job->dd_data = dd_data; |
3910 | ||
3911 | /* state change */ | |
3912 | phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_PORT; | |
3913 | ||
026abb87 JS |
3914 | /* |
3915 | * Non-embedded mailbox subcommand data gets byte swapped here because | |
3916 | * the lower level driver code only does the first 64 mailbox words. | |
3917 | */ | |
3918 | if ((!bsg_bf_get(lpfc_mbox_hdr_emb, | |
3919 | &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr)) && | |
3920 | (nemb_tp == nemb_mse)) | |
3921 | lpfc_sli_pcimem_bcopy(&pmbx[sizeof(MAILBOX_t)], | |
3922 | &pmbx[sizeof(MAILBOX_t)], | |
3923 | sli_cfg_mbx->un.sli_config_emb0_subsys. | |
3924 | mse[0].buf_len); | |
3925 | ||
7ad20aa9 JS |
3926 | rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); |
3927 | if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY)) { | |
3928 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
3929 | "2947 Issued SLI_CONFIG ext-buffer " | |
3930 | "maibox command, rc:x%x\n", rc); | |
88a2cfbb | 3931 | return SLI_CONFIG_HANDLED; |
7ad20aa9 JS |
3932 | } |
3933 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, | |
3934 | "2948 Failed to issue SLI_CONFIG ext-buffer " | |
3935 | "maibox command, rc:x%x\n", rc); | |
3936 | rc = -EPIPE; | |
3937 | ||
3938 | job_error: | |
3939 | if (pmboxq) | |
3940 | mempool_free(pmboxq, phba->mbox_mem_pool); | |
3941 | lpfc_bsg_dma_page_list_free(phba, | |
3942 | &phba->mbox_ext_buf_ctx.ext_dmabuf_list); | |
3943 | kfree(dd_data); | |
3944 | phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_IDLE; | |
3945 | return rc; | |
3946 | } | |
3947 | ||
3948 | /** | |
3949 | * lpfc_bsg_sli_cfg_write_cmd_ext - sli_config non-embedded mailbox cmd write | |
3950 | * @phba: Pointer to HBA context object. | |
3951 | * @mb: Pointer to a BSG mailbox object. | |
3952 | * @dmabuff: Pointer to a DMA buffer descriptor. | |
3953 | * | |
3954 | * This routine performs SLI_CONFIG (0x9B) write mailbox command operation with | |
3955 | * non-embedded external bufffers. | |
3956 | **/ | |
3957 | static int | |
3958 | lpfc_bsg_sli_cfg_write_cmd_ext(struct lpfc_hba *phba, struct fc_bsg_job *job, | |
3959 | enum nemb_type nemb_tp, | |
3960 | struct lpfc_dmabuf *dmabuf) | |
3961 | { | |
3962 | struct dfc_mbox_req *mbox_req; | |
3963 | struct lpfc_sli_config_mbox *sli_cfg_mbx; | |
3964 | uint32_t ext_buf_cnt; | |
3965 | struct bsg_job_data *dd_data = NULL; | |
3966 | LPFC_MBOXQ_t *pmboxq = NULL; | |
3967 | MAILBOX_t *pmb; | |
3968 | uint8_t *mbx; | |
88a2cfbb | 3969 | int rc = SLI_CONFIG_NOT_HANDLED, i; |
7ad20aa9 JS |
3970 | |
3971 | mbox_req = | |
3972 | (struct dfc_mbox_req *)job->request->rqst_data.h_vendor.vendor_cmd; | |
3973 | ||
3974 | /* pointer to the start of mailbox command */ | |
3975 | sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt; | |
3976 | ||
3977 | if (nemb_tp == nemb_mse) { | |
3978 | ext_buf_cnt = bsg_bf_get(lpfc_mbox_hdr_mse_cnt, | |
3979 | &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr); | |
3980 | if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_MSE) { | |
3981 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, | |
026abb87 | 3982 | "2953 Failed SLI_CONFIG(mse) wr, " |
7ad20aa9 JS |
3983 | "ext_buf_cnt(%d) out of range(%d)\n", |
3984 | ext_buf_cnt, | |
3985 | LPFC_MBX_SLI_CONFIG_MAX_MSE); | |
3986 | return -ERANGE; | |
3987 | } | |
3988 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
3989 | "2949 Handled SLI_CONFIG(mse) wr, " | |
3990 | "ext_buf_cnt:%d\n", ext_buf_cnt); | |
3991 | } else { | |
3992 | /* sanity check on interface type for support */ | |
3993 | if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != | |
3994 | LPFC_SLI_INTF_IF_TYPE_2) | |
3995 | return -ENODEV; | |
3996 | /* nemb_tp == nemb_hbd */ | |
3997 | ext_buf_cnt = sli_cfg_mbx->un.sli_config_emb1_subsys.hbd_count; | |
3998 | if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_HBD) { | |
3999 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, | |
026abb87 | 4000 | "2954 Failed SLI_CONFIG(hbd) wr, " |
7ad20aa9 JS |
4001 | "ext_buf_cnt(%d) out of range(%d)\n", |
4002 | ext_buf_cnt, | |
4003 | LPFC_MBX_SLI_CONFIG_MAX_HBD); | |
4004 | return -ERANGE; | |
4005 | } | |
4006 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4007 | "2950 Handled SLI_CONFIG(hbd) wr, " | |
4008 | "ext_buf_cnt:%d\n", ext_buf_cnt); | |
4009 | } | |
4010 | ||
b76f2dc9 JS |
4011 | /* before dma buffer descriptor setup */ |
4012 | lpfc_idiag_mbxacc_dump_bsg_mbox(phba, nemb_tp, mbox_wr, dma_mbox, | |
4013 | sta_pre_addr, dmabuf, ext_buf_cnt); | |
4014 | ||
7ad20aa9 JS |
4015 | if (ext_buf_cnt == 0) |
4016 | return -EPERM; | |
4017 | ||
4018 | /* for the first external buffer */ | |
4019 | lpfc_bsg_sli_cfg_dma_desc_setup(phba, nemb_tp, 0, dmabuf, dmabuf); | |
4020 | ||
b76f2dc9 JS |
4021 | /* after dma descriptor setup */ |
4022 | lpfc_idiag_mbxacc_dump_bsg_mbox(phba, nemb_tp, mbox_wr, dma_mbox, | |
4023 | sta_pos_addr, dmabuf, ext_buf_cnt); | |
4024 | ||
7ad20aa9 JS |
4025 | /* log for looking forward */ |
4026 | for (i = 1; i < ext_buf_cnt; i++) { | |
4027 | if (nemb_tp == nemb_mse) | |
4028 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4029 | "2951 SLI_CONFIG(mse), buf[%d]-length:%d\n", | |
4030 | i, sli_cfg_mbx->un.sli_config_emb0_subsys. | |
4031 | mse[i].buf_len); | |
4032 | else | |
4033 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4034 | "2952 SLI_CONFIG(hbd), buf[%d]-length:%d\n", | |
4035 | i, bsg_bf_get(lpfc_mbox_sli_config_ecmn_hbd_len, | |
4036 | &sli_cfg_mbx->un.sli_config_emb1_subsys. | |
4037 | hbd[i])); | |
4038 | } | |
4039 | ||
4040 | /* multi-buffer handling context */ | |
4041 | phba->mbox_ext_buf_ctx.nembType = nemb_tp; | |
4042 | phba->mbox_ext_buf_ctx.mboxType = mbox_wr; | |
4043 | phba->mbox_ext_buf_ctx.numBuf = ext_buf_cnt; | |
4044 | phba->mbox_ext_buf_ctx.mbxTag = mbox_req->extMboxTag; | |
4045 | phba->mbox_ext_buf_ctx.seqNum = mbox_req->extSeqNum; | |
4046 | phba->mbox_ext_buf_ctx.mbx_dmabuf = dmabuf; | |
4047 | ||
4048 | if (ext_buf_cnt == 1) { | |
4049 | /* bsg tracking structure */ | |
4050 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); | |
4051 | if (!dd_data) { | |
4052 | rc = -ENOMEM; | |
4053 | goto job_error; | |
4054 | } | |
4055 | ||
4056 | /* mailbox command structure for base driver */ | |
4057 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
4058 | if (!pmboxq) { | |
4059 | rc = -ENOMEM; | |
4060 | goto job_error; | |
4061 | } | |
4062 | memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); | |
4063 | pmb = &pmboxq->u.mb; | |
4064 | mbx = (uint8_t *)dmabuf->virt; | |
4065 | memcpy(pmb, mbx, sizeof(*pmb)); | |
4066 | pmb->mbxOwner = OWN_HOST; | |
4067 | pmboxq->vport = phba->pport; | |
4068 | ||
4069 | /* callback for multi-buffer read mailbox command */ | |
4070 | pmboxq->mbox_cmpl = lpfc_bsg_issue_write_mbox_ext_cmpl; | |
4071 | ||
4072 | /* context fields to callback function */ | |
4073 | pmboxq->context1 = dd_data; | |
4074 | dd_data->type = TYPE_MBOX; | |
a33c4f7b | 4075 | dd_data->set_job = job; |
7ad20aa9 JS |
4076 | dd_data->context_un.mbox.pmboxq = pmboxq; |
4077 | dd_data->context_un.mbox.mb = (MAILBOX_t *)mbx; | |
7ad20aa9 JS |
4078 | job->dd_data = dd_data; |
4079 | ||
4080 | /* state change */ | |
7ad20aa9 | 4081 | |
a33c4f7b | 4082 | phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_PORT; |
7ad20aa9 JS |
4083 | rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); |
4084 | if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY)) { | |
4085 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4086 | "2955 Issued SLI_CONFIG ext-buffer " | |
4087 | "maibox command, rc:x%x\n", rc); | |
88a2cfbb | 4088 | return SLI_CONFIG_HANDLED; |
7ad20aa9 JS |
4089 | } |
4090 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, | |
4091 | "2956 Failed to issue SLI_CONFIG ext-buffer " | |
4092 | "maibox command, rc:x%x\n", rc); | |
4093 | rc = -EPIPE; | |
026abb87 | 4094 | goto job_error; |
7ad20aa9 JS |
4095 | } |
4096 | ||
88a2cfbb | 4097 | /* wait for additoinal external buffers */ |
a33c4f7b | 4098 | |
88a2cfbb JS |
4099 | job->reply->result = 0; |
4100 | job->job_done(job); | |
4101 | return SLI_CONFIG_HANDLED; | |
4102 | ||
7ad20aa9 JS |
4103 | job_error: |
4104 | if (pmboxq) | |
4105 | mempool_free(pmboxq, phba->mbox_mem_pool); | |
4106 | kfree(dd_data); | |
4107 | ||
4108 | return rc; | |
4109 | } | |
4110 | ||
4111 | /** | |
4112 | * lpfc_bsg_handle_sli_cfg_mbox - handle sli-cfg mailbox cmd with ext buffer | |
4113 | * @phba: Pointer to HBA context object. | |
4114 | * @mb: Pointer to a BSG mailbox object. | |
4115 | * @dmabuff: Pointer to a DMA buffer descriptor. | |
4116 | * | |
4117 | * This routine handles SLI_CONFIG (0x9B) mailbox command with non-embedded | |
4118 | * external bufffers, including both 0x9B with non-embedded MSEs and 0x9B | |
4119 | * with embedded sussystem 0x1 and opcodes with external HBDs. | |
4120 | **/ | |
4121 | static int | |
4122 | lpfc_bsg_handle_sli_cfg_mbox(struct lpfc_hba *phba, struct fc_bsg_job *job, | |
4123 | struct lpfc_dmabuf *dmabuf) | |
4124 | { | |
4125 | struct lpfc_sli_config_mbox *sli_cfg_mbx; | |
4126 | uint32_t subsys; | |
4127 | uint32_t opcode; | |
4128 | int rc = SLI_CONFIG_NOT_HANDLED; | |
4129 | ||
026abb87 | 4130 | /* state change on new multi-buffer pass-through mailbox command */ |
7ad20aa9 JS |
4131 | phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_HOST; |
4132 | ||
4133 | sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt; | |
4134 | ||
4135 | if (!bsg_bf_get(lpfc_mbox_hdr_emb, | |
4136 | &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr)) { | |
4137 | subsys = bsg_bf_get(lpfc_emb0_subcmnd_subsys, | |
4138 | &sli_cfg_mbx->un.sli_config_emb0_subsys); | |
4139 | opcode = bsg_bf_get(lpfc_emb0_subcmnd_opcode, | |
4140 | &sli_cfg_mbx->un.sli_config_emb0_subsys); | |
4141 | if (subsys == SLI_CONFIG_SUBSYS_FCOE) { | |
4142 | switch (opcode) { | |
4143 | case FCOE_OPCODE_READ_FCF: | |
2a2719d3 | 4144 | case FCOE_OPCODE_GET_DPORT_RESULTS: |
7ad20aa9 JS |
4145 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
4146 | "2957 Handled SLI_CONFIG " | |
4147 | "subsys_fcoe, opcode:x%x\n", | |
4148 | opcode); | |
4149 | rc = lpfc_bsg_sli_cfg_read_cmd_ext(phba, job, | |
4150 | nemb_mse, dmabuf); | |
4151 | break; | |
4152 | case FCOE_OPCODE_ADD_FCF: | |
2a2719d3 JS |
4153 | case FCOE_OPCODE_SET_DPORT_MODE: |
4154 | case LPFC_MBOX_OPCODE_FCOE_LINK_DIAG_STATE: | |
7ad20aa9 JS |
4155 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
4156 | "2958 Handled SLI_CONFIG " | |
4157 | "subsys_fcoe, opcode:x%x\n", | |
4158 | opcode); | |
4159 | rc = lpfc_bsg_sli_cfg_write_cmd_ext(phba, job, | |
4160 | nemb_mse, dmabuf); | |
4161 | break; | |
4162 | default: | |
4163 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
026abb87 | 4164 | "2959 Reject SLI_CONFIG " |
7ad20aa9 JS |
4165 | "subsys_fcoe, opcode:x%x\n", |
4166 | opcode); | |
026abb87 JS |
4167 | rc = -EPERM; |
4168 | break; | |
4169 | } | |
4170 | } else if (subsys == SLI_CONFIG_SUBSYS_COMN) { | |
4171 | switch (opcode) { | |
4172 | case COMN_OPCODE_GET_CNTL_ADDL_ATTRIBUTES: | |
b99570dd | 4173 | case COMN_OPCODE_GET_CNTL_ATTRIBUTES: |
c6377970 | 4174 | case COMN_OPCODE_GET_PROFILE_CONFIG: |
026abb87 JS |
4175 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
4176 | "3106 Handled SLI_CONFIG " | |
6b5151fd | 4177 | "subsys_comn, opcode:x%x\n", |
026abb87 JS |
4178 | opcode); |
4179 | rc = lpfc_bsg_sli_cfg_read_cmd_ext(phba, job, | |
4180 | nemb_mse, dmabuf); | |
4181 | break; | |
4182 | default: | |
4183 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4184 | "3107 Reject SLI_CONFIG " | |
6b5151fd | 4185 | "subsys_comn, opcode:x%x\n", |
026abb87 JS |
4186 | opcode); |
4187 | rc = -EPERM; | |
7ad20aa9 JS |
4188 | break; |
4189 | } | |
4190 | } else { | |
4191 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
026abb87 | 4192 | "2977 Reject SLI_CONFIG " |
7ad20aa9 JS |
4193 | "subsys:x%d, opcode:x%x\n", |
4194 | subsys, opcode); | |
026abb87 | 4195 | rc = -EPERM; |
7ad20aa9 JS |
4196 | } |
4197 | } else { | |
4198 | subsys = bsg_bf_get(lpfc_emb1_subcmnd_subsys, | |
4199 | &sli_cfg_mbx->un.sli_config_emb1_subsys); | |
4200 | opcode = bsg_bf_get(lpfc_emb1_subcmnd_opcode, | |
4201 | &sli_cfg_mbx->un.sli_config_emb1_subsys); | |
4202 | if (subsys == SLI_CONFIG_SUBSYS_COMN) { | |
4203 | switch (opcode) { | |
4204 | case COMN_OPCODE_READ_OBJECT: | |
4205 | case COMN_OPCODE_READ_OBJECT_LIST: | |
4206 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4207 | "2960 Handled SLI_CONFIG " | |
4208 | "subsys_comn, opcode:x%x\n", | |
4209 | opcode); | |
4210 | rc = lpfc_bsg_sli_cfg_read_cmd_ext(phba, job, | |
4211 | nemb_hbd, dmabuf); | |
4212 | break; | |
4213 | case COMN_OPCODE_WRITE_OBJECT: | |
4214 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4215 | "2961 Handled SLI_CONFIG " | |
4216 | "subsys_comn, opcode:x%x\n", | |
4217 | opcode); | |
4218 | rc = lpfc_bsg_sli_cfg_write_cmd_ext(phba, job, | |
4219 | nemb_hbd, dmabuf); | |
4220 | break; | |
4221 | default: | |
4222 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4223 | "2962 Not handled SLI_CONFIG " | |
4224 | "subsys_comn, opcode:x%x\n", | |
4225 | opcode); | |
4226 | rc = SLI_CONFIG_NOT_HANDLED; | |
4227 | break; | |
4228 | } | |
4229 | } else { | |
4230 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
026abb87 | 4231 | "2978 Not handled SLI_CONFIG " |
7ad20aa9 JS |
4232 | "subsys:x%d, opcode:x%x\n", |
4233 | subsys, opcode); | |
4234 | rc = SLI_CONFIG_NOT_HANDLED; | |
4235 | } | |
4236 | } | |
026abb87 JS |
4237 | |
4238 | /* state reset on not handled new multi-buffer mailbox command */ | |
4239 | if (rc != SLI_CONFIG_HANDLED) | |
4240 | phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_IDLE; | |
4241 | ||
7ad20aa9 JS |
4242 | return rc; |
4243 | } | |
4244 | ||
4245 | /** | |
4246 | * lpfc_bsg_mbox_ext_abort_req - request to abort mbox command with ext buffers | |
4247 | * @phba: Pointer to HBA context object. | |
4248 | * | |
4249 | * This routine is for requesting to abort a pass-through mailbox command with | |
4250 | * multiple external buffers due to error condition. | |
4251 | **/ | |
4252 | static void | |
4253 | lpfc_bsg_mbox_ext_abort(struct lpfc_hba *phba) | |
4254 | { | |
4255 | if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_PORT) | |
4256 | phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_ABTS; | |
4257 | else | |
4258 | lpfc_bsg_mbox_ext_session_reset(phba); | |
4259 | return; | |
4260 | } | |
4261 | ||
4262 | /** | |
4263 | * lpfc_bsg_read_ebuf_get - get the next mailbox read external buffer | |
4264 | * @phba: Pointer to HBA context object. | |
4265 | * @dmabuf: Pointer to a DMA buffer descriptor. | |
4266 | * | |
4267 | * This routine extracts the next mailbox read external buffer back to | |
4268 | * user space through BSG. | |
4269 | **/ | |
4270 | static int | |
4271 | lpfc_bsg_read_ebuf_get(struct lpfc_hba *phba, struct fc_bsg_job *job) | |
4272 | { | |
4273 | struct lpfc_sli_config_mbox *sli_cfg_mbx; | |
4274 | struct lpfc_dmabuf *dmabuf; | |
4275 | uint8_t *pbuf; | |
4276 | uint32_t size; | |
4277 | uint32_t index; | |
4278 | ||
4279 | index = phba->mbox_ext_buf_ctx.seqNum; | |
4280 | phba->mbox_ext_buf_ctx.seqNum++; | |
4281 | ||
4282 | sli_cfg_mbx = (struct lpfc_sli_config_mbox *) | |
4283 | phba->mbox_ext_buf_ctx.mbx_dmabuf->virt; | |
4284 | ||
4285 | if (phba->mbox_ext_buf_ctx.nembType == nemb_mse) { | |
4286 | size = bsg_bf_get(lpfc_mbox_sli_config_mse_len, | |
4287 | &sli_cfg_mbx->un.sli_config_emb0_subsys.mse[index]); | |
4288 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4289 | "2963 SLI_CONFIG (mse) ext-buffer rd get " | |
4290 | "buffer[%d], size:%d\n", index, size); | |
4291 | } else { | |
4292 | size = bsg_bf_get(lpfc_mbox_sli_config_ecmn_hbd_len, | |
4293 | &sli_cfg_mbx->un.sli_config_emb1_subsys.hbd[index]); | |
4294 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4295 | "2964 SLI_CONFIG (hbd) ext-buffer rd get " | |
4296 | "buffer[%d], size:%d\n", index, size); | |
4297 | } | |
4298 | if (list_empty(&phba->mbox_ext_buf_ctx.ext_dmabuf_list)) | |
4299 | return -EPIPE; | |
4300 | dmabuf = list_first_entry(&phba->mbox_ext_buf_ctx.ext_dmabuf_list, | |
4301 | struct lpfc_dmabuf, list); | |
4302 | list_del_init(&dmabuf->list); | |
b76f2dc9 JS |
4303 | |
4304 | /* after dma buffer descriptor setup */ | |
4305 | lpfc_idiag_mbxacc_dump_bsg_mbox(phba, phba->mbox_ext_buf_ctx.nembType, | |
4306 | mbox_rd, dma_ebuf, sta_pos_addr, | |
4307 | dmabuf, index); | |
4308 | ||
7ad20aa9 JS |
4309 | pbuf = (uint8_t *)dmabuf->virt; |
4310 | job->reply->reply_payload_rcv_len = | |
4311 | sg_copy_from_buffer(job->reply_payload.sg_list, | |
4312 | job->reply_payload.sg_cnt, | |
4313 | pbuf, size); | |
4314 | ||
4315 | lpfc_bsg_dma_page_free(phba, dmabuf); | |
4316 | ||
4317 | if (phba->mbox_ext_buf_ctx.seqNum == phba->mbox_ext_buf_ctx.numBuf) { | |
4318 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4319 | "2965 SLI_CONFIG (hbd) ext-buffer rd mbox " | |
4320 | "command session done\n"); | |
4321 | lpfc_bsg_mbox_ext_session_reset(phba); | |
4322 | } | |
4323 | ||
4324 | job->reply->result = 0; | |
4325 | job->job_done(job); | |
4326 | ||
4327 | return SLI_CONFIG_HANDLED; | |
4328 | } | |
4329 | ||
4330 | /** | |
4331 | * lpfc_bsg_write_ebuf_set - set the next mailbox write external buffer | |
4332 | * @phba: Pointer to HBA context object. | |
4333 | * @dmabuf: Pointer to a DMA buffer descriptor. | |
4334 | * | |
4335 | * This routine sets up the next mailbox read external buffer obtained | |
4336 | * from user space through BSG. | |
4337 | **/ | |
4338 | static int | |
4339 | lpfc_bsg_write_ebuf_set(struct lpfc_hba *phba, struct fc_bsg_job *job, | |
4340 | struct lpfc_dmabuf *dmabuf) | |
4341 | { | |
7ad20aa9 JS |
4342 | struct bsg_job_data *dd_data = NULL; |
4343 | LPFC_MBOXQ_t *pmboxq = NULL; | |
4344 | MAILBOX_t *pmb; | |
4345 | enum nemb_type nemb_tp; | |
4346 | uint8_t *pbuf; | |
4347 | uint32_t size; | |
4348 | uint32_t index; | |
4349 | int rc; | |
4350 | ||
4351 | index = phba->mbox_ext_buf_ctx.seqNum; | |
4352 | phba->mbox_ext_buf_ctx.seqNum++; | |
4353 | nemb_tp = phba->mbox_ext_buf_ctx.nembType; | |
4354 | ||
7ad20aa9 JS |
4355 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); |
4356 | if (!dd_data) { | |
4357 | rc = -ENOMEM; | |
4358 | goto job_error; | |
4359 | } | |
4360 | ||
4361 | pbuf = (uint8_t *)dmabuf->virt; | |
4362 | size = job->request_payload.payload_len; | |
4363 | sg_copy_to_buffer(job->request_payload.sg_list, | |
4364 | job->request_payload.sg_cnt, | |
4365 | pbuf, size); | |
4366 | ||
4367 | if (phba->mbox_ext_buf_ctx.nembType == nemb_mse) { | |
4368 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4369 | "2966 SLI_CONFIG (mse) ext-buffer wr set " | |
4370 | "buffer[%d], size:%d\n", | |
4371 | phba->mbox_ext_buf_ctx.seqNum, size); | |
4372 | ||
4373 | } else { | |
4374 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4375 | "2967 SLI_CONFIG (hbd) ext-buffer wr set " | |
4376 | "buffer[%d], size:%d\n", | |
4377 | phba->mbox_ext_buf_ctx.seqNum, size); | |
4378 | ||
4379 | } | |
4380 | ||
4381 | /* set up external buffer descriptor and add to external buffer list */ | |
4382 | lpfc_bsg_sli_cfg_dma_desc_setup(phba, nemb_tp, index, | |
4383 | phba->mbox_ext_buf_ctx.mbx_dmabuf, | |
4384 | dmabuf); | |
4385 | list_add_tail(&dmabuf->list, &phba->mbox_ext_buf_ctx.ext_dmabuf_list); | |
4386 | ||
b76f2dc9 JS |
4387 | /* after write dma buffer */ |
4388 | lpfc_idiag_mbxacc_dump_bsg_mbox(phba, phba->mbox_ext_buf_ctx.nembType, | |
4389 | mbox_wr, dma_ebuf, sta_pos_addr, | |
4390 | dmabuf, index); | |
4391 | ||
7ad20aa9 JS |
4392 | if (phba->mbox_ext_buf_ctx.seqNum == phba->mbox_ext_buf_ctx.numBuf) { |
4393 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4394 | "2968 SLI_CONFIG ext-buffer wr all %d " | |
4395 | "ebuffers received\n", | |
4396 | phba->mbox_ext_buf_ctx.numBuf); | |
4397 | /* mailbox command structure for base driver */ | |
4398 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
4399 | if (!pmboxq) { | |
4400 | rc = -ENOMEM; | |
4401 | goto job_error; | |
4402 | } | |
4403 | memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); | |
4404 | pbuf = (uint8_t *)phba->mbox_ext_buf_ctx.mbx_dmabuf->virt; | |
4405 | pmb = &pmboxq->u.mb; | |
4406 | memcpy(pmb, pbuf, sizeof(*pmb)); | |
4407 | pmb->mbxOwner = OWN_HOST; | |
4408 | pmboxq->vport = phba->pport; | |
4409 | ||
4410 | /* callback for multi-buffer write mailbox command */ | |
4411 | pmboxq->mbox_cmpl = lpfc_bsg_issue_write_mbox_ext_cmpl; | |
4412 | ||
4413 | /* context fields to callback function */ | |
4414 | pmboxq->context1 = dd_data; | |
4415 | dd_data->type = TYPE_MBOX; | |
a33c4f7b | 4416 | dd_data->set_job = job; |
7ad20aa9 JS |
4417 | dd_data->context_un.mbox.pmboxq = pmboxq; |
4418 | dd_data->context_un.mbox.mb = (MAILBOX_t *)pbuf; | |
7ad20aa9 JS |
4419 | job->dd_data = dd_data; |
4420 | ||
4421 | /* state change */ | |
4422 | phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_PORT; | |
4423 | ||
4424 | rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); | |
4425 | if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY)) { | |
4426 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4427 | "2969 Issued SLI_CONFIG ext-buffer " | |
4428 | "maibox command, rc:x%x\n", rc); | |
88a2cfbb | 4429 | return SLI_CONFIG_HANDLED; |
7ad20aa9 JS |
4430 | } |
4431 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, | |
4432 | "2970 Failed to issue SLI_CONFIG ext-buffer " | |
4433 | "maibox command, rc:x%x\n", rc); | |
4434 | rc = -EPIPE; | |
4435 | goto job_error; | |
4436 | } | |
4437 | ||
4438 | /* wait for additoinal external buffers */ | |
4439 | job->reply->result = 0; | |
4440 | job->job_done(job); | |
4441 | return SLI_CONFIG_HANDLED; | |
4442 | ||
4443 | job_error: | |
4444 | lpfc_bsg_dma_page_free(phba, dmabuf); | |
4445 | kfree(dd_data); | |
4446 | ||
4447 | return rc; | |
4448 | } | |
4449 | ||
4450 | /** | |
4451 | * lpfc_bsg_handle_sli_cfg_ebuf - handle ext buffer with sli-cfg mailbox cmd | |
4452 | * @phba: Pointer to HBA context object. | |
4453 | * @mb: Pointer to a BSG mailbox object. | |
4454 | * @dmabuff: Pointer to a DMA buffer descriptor. | |
4455 | * | |
4456 | * This routine handles the external buffer with SLI_CONFIG (0x9B) mailbox | |
4457 | * command with multiple non-embedded external buffers. | |
4458 | **/ | |
4459 | static int | |
4460 | lpfc_bsg_handle_sli_cfg_ebuf(struct lpfc_hba *phba, struct fc_bsg_job *job, | |
4461 | struct lpfc_dmabuf *dmabuf) | |
4462 | { | |
4463 | int rc; | |
4464 | ||
4465 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4466 | "2971 SLI_CONFIG buffer (type:x%x)\n", | |
4467 | phba->mbox_ext_buf_ctx.mboxType); | |
4468 | ||
4469 | if (phba->mbox_ext_buf_ctx.mboxType == mbox_rd) { | |
4470 | if (phba->mbox_ext_buf_ctx.state != LPFC_BSG_MBOX_DONE) { | |
4471 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, | |
4472 | "2972 SLI_CONFIG rd buffer state " | |
4473 | "mismatch:x%x\n", | |
4474 | phba->mbox_ext_buf_ctx.state); | |
4475 | lpfc_bsg_mbox_ext_abort(phba); | |
4476 | return -EPIPE; | |
4477 | } | |
4478 | rc = lpfc_bsg_read_ebuf_get(phba, job); | |
4479 | if (rc == SLI_CONFIG_HANDLED) | |
4480 | lpfc_bsg_dma_page_free(phba, dmabuf); | |
4481 | } else { /* phba->mbox_ext_buf_ctx.mboxType == mbox_wr */ | |
4482 | if (phba->mbox_ext_buf_ctx.state != LPFC_BSG_MBOX_HOST) { | |
4483 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, | |
4484 | "2973 SLI_CONFIG wr buffer state " | |
4485 | "mismatch:x%x\n", | |
4486 | phba->mbox_ext_buf_ctx.state); | |
4487 | lpfc_bsg_mbox_ext_abort(phba); | |
4488 | return -EPIPE; | |
4489 | } | |
4490 | rc = lpfc_bsg_write_ebuf_set(phba, job, dmabuf); | |
7a470277 | 4491 | } |
7ad20aa9 | 4492 | return rc; |
3b5dd52a JS |
4493 | } |
4494 | ||
4495 | /** | |
7ad20aa9 | 4496 | * lpfc_bsg_handle_sli_cfg_ext - handle sli-cfg mailbox with external buffer |
3b5dd52a | 4497 | * @phba: Pointer to HBA context object. |
7ad20aa9 JS |
4498 | * @mb: Pointer to a BSG mailbox object. |
4499 | * @dmabuff: Pointer to a DMA buffer descriptor. | |
3b5dd52a | 4500 | * |
7ad20aa9 JS |
4501 | * This routine checkes and handles non-embedded multi-buffer SLI_CONFIG |
4502 | * (0x9B) mailbox commands and external buffers. | |
3b5dd52a | 4503 | **/ |
7ad20aa9 JS |
4504 | static int |
4505 | lpfc_bsg_handle_sli_cfg_ext(struct lpfc_hba *phba, struct fc_bsg_job *job, | |
4506 | struct lpfc_dmabuf *dmabuf) | |
3b5dd52a | 4507 | { |
7ad20aa9 | 4508 | struct dfc_mbox_req *mbox_req; |
88a2cfbb | 4509 | int rc = SLI_CONFIG_NOT_HANDLED; |
7ad20aa9 JS |
4510 | |
4511 | mbox_req = | |
4512 | (struct dfc_mbox_req *)job->request->rqst_data.h_vendor.vendor_cmd; | |
4513 | ||
4514 | /* mbox command with/without single external buffer */ | |
4515 | if (mbox_req->extMboxTag == 0 && mbox_req->extSeqNum == 0) | |
88a2cfbb | 4516 | return rc; |
7ad20aa9 JS |
4517 | |
4518 | /* mbox command and first external buffer */ | |
4519 | if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_IDLE) { | |
4520 | if (mbox_req->extSeqNum == 1) { | |
4521 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4522 | "2974 SLI_CONFIG mailbox: tag:%d, " | |
4523 | "seq:%d\n", mbox_req->extMboxTag, | |
4524 | mbox_req->extSeqNum); | |
4525 | rc = lpfc_bsg_handle_sli_cfg_mbox(phba, job, dmabuf); | |
4526 | return rc; | |
4527 | } else | |
4528 | goto sli_cfg_ext_error; | |
3b5dd52a JS |
4529 | } |
4530 | ||
7ad20aa9 JS |
4531 | /* |
4532 | * handle additional external buffers | |
4533 | */ | |
4534 | ||
4535 | /* check broken pipe conditions */ | |
4536 | if (mbox_req->extMboxTag != phba->mbox_ext_buf_ctx.mbxTag) | |
4537 | goto sli_cfg_ext_error; | |
4538 | if (mbox_req->extSeqNum > phba->mbox_ext_buf_ctx.numBuf) | |
4539 | goto sli_cfg_ext_error; | |
4540 | if (mbox_req->extSeqNum != phba->mbox_ext_buf_ctx.seqNum + 1) | |
4541 | goto sli_cfg_ext_error; | |
4542 | ||
4543 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4544 | "2975 SLI_CONFIG mailbox external buffer: " | |
4545 | "extSta:x%x, tag:%d, seq:%d\n", | |
4546 | phba->mbox_ext_buf_ctx.state, mbox_req->extMboxTag, | |
4547 | mbox_req->extSeqNum); | |
4548 | rc = lpfc_bsg_handle_sli_cfg_ebuf(phba, job, dmabuf); | |
4549 | return rc; | |
4550 | ||
4551 | sli_cfg_ext_error: | |
4552 | /* all other cases, broken pipe */ | |
4553 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, | |
4554 | "2976 SLI_CONFIG mailbox broken pipe: " | |
4555 | "ctxSta:x%x, ctxNumBuf:%d " | |
4556 | "ctxTag:%d, ctxSeq:%d, tag:%d, seq:%d\n", | |
4557 | phba->mbox_ext_buf_ctx.state, | |
4558 | phba->mbox_ext_buf_ctx.numBuf, | |
4559 | phba->mbox_ext_buf_ctx.mbxTag, | |
4560 | phba->mbox_ext_buf_ctx.seqNum, | |
4561 | mbox_req->extMboxTag, mbox_req->extSeqNum); | |
4562 | ||
4563 | lpfc_bsg_mbox_ext_session_reset(phba); | |
4564 | ||
4565 | return -EPIPE; | |
3b5dd52a JS |
4566 | } |
4567 | ||
4568 | /** | |
4569 | * lpfc_bsg_issue_mbox - issues a mailbox command on behalf of an app | |
4570 | * @phba: Pointer to HBA context object. | |
4571 | * @mb: Pointer to a mailbox object. | |
4572 | * @vport: Pointer to a vport object. | |
4573 | * | |
4574 | * Allocate a tracking object, mailbox command memory, get a mailbox | |
4575 | * from the mailbox pool, copy the caller mailbox command. | |
4576 | * | |
4577 | * If offline and the sli is active we need to poll for the command (port is | |
4578 | * being reset) and com-plete the job, otherwise issue the mailbox command and | |
4579 | * let our completion handler finish the command. | |
4580 | **/ | |
a2fc4aef | 4581 | static int |
3b5dd52a JS |
4582 | lpfc_bsg_issue_mbox(struct lpfc_hba *phba, struct fc_bsg_job *job, |
4583 | struct lpfc_vport *vport) | |
4584 | { | |
7a470277 JS |
4585 | LPFC_MBOXQ_t *pmboxq = NULL; /* internal mailbox queue */ |
4586 | MAILBOX_t *pmb; /* shortcut to the pmboxq mailbox */ | |
4587 | /* a 4k buffer to hold the mb and extended data from/to the bsg */ | |
7ad20aa9 | 4588 | uint8_t *pmbx = NULL; |
7a470277 | 4589 | struct bsg_job_data *dd_data = NULL; /* bsg data tracking structure */ |
7ad20aa9 JS |
4590 | struct lpfc_dmabuf *dmabuf = NULL; |
4591 | struct dfc_mbox_req *mbox_req; | |
b6e3b9c6 JS |
4592 | struct READ_EVENT_LOG_VAR *rdEventLog; |
4593 | uint32_t transmit_length, receive_length, mode; | |
7ad20aa9 | 4594 | struct lpfc_mbx_sli4_config *sli4_config; |
b6e3b9c6 | 4595 | struct lpfc_mbx_nembed_cmd *nembed_sge; |
b6e3b9c6 | 4596 | struct ulp_bde64 *bde; |
7a470277 | 4597 | uint8_t *ext = NULL; |
3b5dd52a | 4598 | int rc = 0; |
7a470277 | 4599 | uint8_t *from; |
7ad20aa9 JS |
4600 | uint32_t size; |
4601 | ||
7a470277 JS |
4602 | /* in case no data is transferred */ |
4603 | job->reply->reply_payload_rcv_len = 0; | |
4604 | ||
b6e3b9c6 JS |
4605 | /* sanity check to protect driver */ |
4606 | if (job->reply_payload.payload_len > BSG_MBOX_SIZE || | |
4607 | job->request_payload.payload_len > BSG_MBOX_SIZE) { | |
4608 | rc = -ERANGE; | |
4609 | goto job_done; | |
4610 | } | |
4611 | ||
7ad20aa9 JS |
4612 | /* |
4613 | * Don't allow mailbox commands to be sent when blocked or when in | |
4614 | * the middle of discovery | |
4615 | */ | |
4616 | if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) { | |
4617 | rc = -EAGAIN; | |
4618 | goto job_done; | |
4619 | } | |
4620 | ||
4621 | mbox_req = | |
4622 | (struct dfc_mbox_req *)job->request->rqst_data.h_vendor.vendor_cmd; | |
4623 | ||
7a470277 | 4624 | /* check if requested extended data lengths are valid */ |
b6e3b9c6 JS |
4625 | if ((mbox_req->inExtWLen > BSG_MBOX_SIZE/sizeof(uint32_t)) || |
4626 | (mbox_req->outExtWLen > BSG_MBOX_SIZE/sizeof(uint32_t))) { | |
7a470277 JS |
4627 | rc = -ERANGE; |
4628 | goto job_done; | |
4629 | } | |
3b5dd52a | 4630 | |
7ad20aa9 JS |
4631 | dmabuf = lpfc_bsg_dma_page_alloc(phba); |
4632 | if (!dmabuf || !dmabuf->virt) { | |
4633 | rc = -ENOMEM; | |
4634 | goto job_done; | |
4635 | } | |
4636 | ||
4637 | /* Get the mailbox command or external buffer from BSG */ | |
4638 | pmbx = (uint8_t *)dmabuf->virt; | |
4639 | size = job->request_payload.payload_len; | |
4640 | sg_copy_to_buffer(job->request_payload.sg_list, | |
4641 | job->request_payload.sg_cnt, pmbx, size); | |
4642 | ||
4643 | /* Handle possible SLI_CONFIG with non-embedded payloads */ | |
4644 | if (phba->sli_rev == LPFC_SLI_REV4) { | |
4645 | rc = lpfc_bsg_handle_sli_cfg_ext(phba, job, dmabuf); | |
4646 | if (rc == SLI_CONFIG_HANDLED) | |
4647 | goto job_cont; | |
4648 | if (rc) | |
4649 | goto job_done; | |
4650 | /* SLI_CONFIG_NOT_HANDLED for other mailbox commands */ | |
4651 | } | |
4652 | ||
4653 | rc = lpfc_bsg_check_cmd_access(phba, (MAILBOX_t *)pmbx, vport); | |
4654 | if (rc != 0) | |
4655 | goto job_done; /* must be negative */ | |
4656 | ||
3b5dd52a JS |
4657 | /* allocate our bsg tracking structure */ |
4658 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); | |
4659 | if (!dd_data) { | |
4660 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
4661 | "2727 Failed allocation of dd_data\n"); | |
7a470277 JS |
4662 | rc = -ENOMEM; |
4663 | goto job_done; | |
3b5dd52a JS |
4664 | } |
4665 | ||
3b5dd52a JS |
4666 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
4667 | if (!pmboxq) { | |
7a470277 JS |
4668 | rc = -ENOMEM; |
4669 | goto job_done; | |
3b5dd52a | 4670 | } |
7a470277 | 4671 | memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); |
3b5dd52a | 4672 | |
3b5dd52a | 4673 | pmb = &pmboxq->u.mb; |
7ad20aa9 | 4674 | memcpy(pmb, pmbx, sizeof(*pmb)); |
3b5dd52a | 4675 | pmb->mbxOwner = OWN_HOST; |
3b5dd52a JS |
4676 | pmboxq->vport = vport; |
4677 | ||
c7495937 JS |
4678 | /* If HBA encountered an error attention, allow only DUMP |
4679 | * or RESTART mailbox commands until the HBA is restarted. | |
4680 | */ | |
4681 | if (phba->pport->stopped && | |
4682 | pmb->mbxCommand != MBX_DUMP_MEMORY && | |
4683 | pmb->mbxCommand != MBX_RESTART && | |
4684 | pmb->mbxCommand != MBX_WRITE_VPARMS && | |
4685 | pmb->mbxCommand != MBX_WRITE_WWN) | |
4686 | lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, | |
4687 | "2797 mbox: Issued mailbox cmd " | |
4688 | "0x%x while in stopped state.\n", | |
4689 | pmb->mbxCommand); | |
4690 | ||
7a470277 | 4691 | /* extended mailbox commands will need an extended buffer */ |
c7495937 | 4692 | if (mbox_req->inExtWLen || mbox_req->outExtWLen) { |
026abb87 JS |
4693 | from = pmbx; |
4694 | ext = from + sizeof(MAILBOX_t); | |
7a470277 JS |
4695 | pmboxq->context2 = ext; |
4696 | pmboxq->in_ext_byte_len = | |
4697 | mbox_req->inExtWLen * sizeof(uint32_t); | |
4698 | pmboxq->out_ext_byte_len = | |
c7495937 | 4699 | mbox_req->outExtWLen * sizeof(uint32_t); |
7a470277 JS |
4700 | pmboxq->mbox_offset_word = mbox_req->mbOffset; |
4701 | } | |
4702 | ||
4703 | /* biu diag will need a kernel buffer to transfer the data | |
4704 | * allocate our own buffer and setup the mailbox command to | |
4705 | * use ours | |
4706 | */ | |
4707 | if (pmb->mbxCommand == MBX_RUN_BIU_DIAG64) { | |
b6e3b9c6 JS |
4708 | transmit_length = pmb->un.varWords[1]; |
4709 | receive_length = pmb->un.varWords[4]; | |
c7495937 JS |
4710 | /* transmit length cannot be greater than receive length or |
4711 | * mailbox extension size | |
4712 | */ | |
4713 | if ((transmit_length > receive_length) || | |
88a2cfbb | 4714 | (transmit_length > BSG_MBOX_SIZE - sizeof(MAILBOX_t))) { |
c7495937 JS |
4715 | rc = -ERANGE; |
4716 | goto job_done; | |
4717 | } | |
7a470277 | 4718 | pmb->un.varBIUdiag.un.s2.xmit_bde64.addrHigh = |
7ad20aa9 | 4719 | putPaddrHigh(dmabuf->phys + sizeof(MAILBOX_t)); |
7a470277 | 4720 | pmb->un.varBIUdiag.un.s2.xmit_bde64.addrLow = |
7ad20aa9 | 4721 | putPaddrLow(dmabuf->phys + sizeof(MAILBOX_t)); |
7a470277 JS |
4722 | |
4723 | pmb->un.varBIUdiag.un.s2.rcv_bde64.addrHigh = | |
7ad20aa9 JS |
4724 | putPaddrHigh(dmabuf->phys + sizeof(MAILBOX_t) |
4725 | + pmb->un.varBIUdiag.un.s2.xmit_bde64.tus.f.bdeSize); | |
7a470277 | 4726 | pmb->un.varBIUdiag.un.s2.rcv_bde64.addrLow = |
7ad20aa9 JS |
4727 | putPaddrLow(dmabuf->phys + sizeof(MAILBOX_t) |
4728 | + pmb->un.varBIUdiag.un.s2.xmit_bde64.tus.f.bdeSize); | |
c7495937 | 4729 | } else if (pmb->mbxCommand == MBX_READ_EVENT_LOG) { |
b6e3b9c6 JS |
4730 | rdEventLog = &pmb->un.varRdEventLog; |
4731 | receive_length = rdEventLog->rcv_bde64.tus.f.bdeSize; | |
4732 | mode = bf_get(lpfc_event_log, rdEventLog); | |
c7495937 JS |
4733 | |
4734 | /* receive length cannot be greater than mailbox | |
4735 | * extension size | |
4736 | */ | |
88a2cfbb | 4737 | if (receive_length > BSG_MBOX_SIZE - sizeof(MAILBOX_t)) { |
c7495937 JS |
4738 | rc = -ERANGE; |
4739 | goto job_done; | |
4740 | } | |
4741 | ||
4742 | /* mode zero uses a bde like biu diags command */ | |
4743 | if (mode == 0) { | |
7ad20aa9 JS |
4744 | pmb->un.varWords[3] = putPaddrLow(dmabuf->phys |
4745 | + sizeof(MAILBOX_t)); | |
4746 | pmb->un.varWords[4] = putPaddrHigh(dmabuf->phys | |
4747 | + sizeof(MAILBOX_t)); | |
c7495937 JS |
4748 | } |
4749 | } else if (phba->sli_rev == LPFC_SLI_REV4) { | |
3ef6d24c JS |
4750 | /* Let type 4 (well known data) through because the data is |
4751 | * returned in varwords[4-8] | |
4752 | * otherwise check the recieve length and fetch the buffer addr | |
4753 | */ | |
4754 | if ((pmb->mbxCommand == MBX_DUMP_MEMORY) && | |
4755 | (pmb->un.varDmp.type != DMP_WELL_KNOWN)) { | |
c7495937 JS |
4756 | /* rebuild the command for sli4 using our own buffers |
4757 | * like we do for biu diags | |
4758 | */ | |
b6e3b9c6 | 4759 | receive_length = pmb->un.varWords[2]; |
c7495937 JS |
4760 | /* receive length cannot be greater than mailbox |
4761 | * extension size | |
4762 | */ | |
7ad20aa9 | 4763 | if (receive_length == 0) { |
c7495937 JS |
4764 | rc = -ERANGE; |
4765 | goto job_done; | |
4766 | } | |
7ad20aa9 JS |
4767 | pmb->un.varWords[3] = putPaddrLow(dmabuf->phys |
4768 | + sizeof(MAILBOX_t)); | |
4769 | pmb->un.varWords[4] = putPaddrHigh(dmabuf->phys | |
4770 | + sizeof(MAILBOX_t)); | |
c7495937 JS |
4771 | } else if ((pmb->mbxCommand == MBX_UPDATE_CFG) && |
4772 | pmb->un.varUpdateCfg.co) { | |
b6e3b9c6 | 4773 | bde = (struct ulp_bde64 *)&pmb->un.varWords[4]; |
c7495937 JS |
4774 | |
4775 | /* bde size cannot be greater than mailbox ext size */ | |
88a2cfbb JS |
4776 | if (bde->tus.f.bdeSize > |
4777 | BSG_MBOX_SIZE - sizeof(MAILBOX_t)) { | |
c7495937 JS |
4778 | rc = -ERANGE; |
4779 | goto job_done; | |
4780 | } | |
7ad20aa9 JS |
4781 | bde->addrHigh = putPaddrHigh(dmabuf->phys |
4782 | + sizeof(MAILBOX_t)); | |
4783 | bde->addrLow = putPaddrLow(dmabuf->phys | |
4784 | + sizeof(MAILBOX_t)); | |
515e0aa2 | 4785 | } else if (pmb->mbxCommand == MBX_SLI4_CONFIG) { |
7ad20aa9 JS |
4786 | /* Handling non-embedded SLI_CONFIG mailbox command */ |
4787 | sli4_config = &pmboxq->u.mqe.un.sli4_config; | |
4788 | if (!bf_get(lpfc_mbox_hdr_emb, | |
4789 | &sli4_config->header.cfg_mhdr)) { | |
4790 | /* rebuild the command for sli4 using our | |
4791 | * own buffers like we do for biu diags | |
4792 | */ | |
7ad20aa9 JS |
4793 | nembed_sge = (struct lpfc_mbx_nembed_cmd *) |
4794 | &pmb->un.varWords[0]; | |
4795 | receive_length = nembed_sge->sge[0].length; | |
4796 | ||
4797 | /* receive length cannot be greater than | |
4798 | * mailbox extension size | |
4799 | */ | |
4800 | if ((receive_length == 0) || | |
88a2cfbb JS |
4801 | (receive_length > |
4802 | BSG_MBOX_SIZE - sizeof(MAILBOX_t))) { | |
7ad20aa9 JS |
4803 | rc = -ERANGE; |
4804 | goto job_done; | |
4805 | } | |
515e0aa2 | 4806 | |
7ad20aa9 JS |
4807 | nembed_sge->sge[0].pa_hi = |
4808 | putPaddrHigh(dmabuf->phys | |
4809 | + sizeof(MAILBOX_t)); | |
4810 | nembed_sge->sge[0].pa_lo = | |
4811 | putPaddrLow(dmabuf->phys | |
4812 | + sizeof(MAILBOX_t)); | |
515e0aa2 | 4813 | } |
c7495937 | 4814 | } |
7a470277 JS |
4815 | } |
4816 | ||
7ad20aa9 | 4817 | dd_data->context_un.mbox.dmabuffers = dmabuf; |
c7495937 | 4818 | |
7a470277 | 4819 | /* setup wake call as IOCB callback */ |
7ad20aa9 | 4820 | pmboxq->mbox_cmpl = lpfc_bsg_issue_mbox_cmpl; |
7a470277 JS |
4821 | |
4822 | /* setup context field to pass wait_queue pointer to wake function */ | |
4823 | pmboxq->context1 = dd_data; | |
4824 | dd_data->type = TYPE_MBOX; | |
a33c4f7b | 4825 | dd_data->set_job = job; |
7a470277 | 4826 | dd_data->context_un.mbox.pmboxq = pmboxq; |
7ad20aa9 | 4827 | dd_data->context_un.mbox.mb = (MAILBOX_t *)pmbx; |
7a470277 JS |
4828 | dd_data->context_un.mbox.ext = ext; |
4829 | dd_data->context_un.mbox.mbOffset = mbox_req->mbOffset; | |
4830 | dd_data->context_un.mbox.inExtWLen = mbox_req->inExtWLen; | |
c7495937 | 4831 | dd_data->context_un.mbox.outExtWLen = mbox_req->outExtWLen; |
7a470277 JS |
4832 | job->dd_data = dd_data; |
4833 | ||
3b5dd52a JS |
4834 | if ((vport->fc_flag & FC_OFFLINE_MODE) || |
4835 | (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE))) { | |
4836 | rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); | |
4837 | if (rc != MBX_SUCCESS) { | |
7a470277 JS |
4838 | rc = (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV; |
4839 | goto job_done; | |
3b5dd52a JS |
4840 | } |
4841 | ||
7a470277 | 4842 | /* job finished, copy the data */ |
7ad20aa9 | 4843 | memcpy(pmbx, pmb, sizeof(*pmb)); |
3b5dd52a JS |
4844 | job->reply->reply_payload_rcv_len = |
4845 | sg_copy_from_buffer(job->reply_payload.sg_list, | |
7ad20aa9 JS |
4846 | job->reply_payload.sg_cnt, |
4847 | pmbx, size); | |
3b5dd52a | 4848 | /* not waiting mbox already done */ |
7a470277 JS |
4849 | rc = 0; |
4850 | goto job_done; | |
3b5dd52a JS |
4851 | } |
4852 | ||
3b5dd52a | 4853 | rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); |
7a470277 JS |
4854 | if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY)) |
4855 | return 1; /* job started */ | |
4856 | ||
4857 | job_done: | |
4858 | /* common exit for error or job completed inline */ | |
7a470277 | 4859 | if (pmboxq) |
3b5dd52a | 4860 | mempool_free(pmboxq, phba->mbox_mem_pool); |
7ad20aa9 | 4861 | lpfc_bsg_dma_page_free(phba, dmabuf); |
7a470277 | 4862 | kfree(dd_data); |
3b5dd52a | 4863 | |
7ad20aa9 | 4864 | job_cont: |
7a470277 | 4865 | return rc; |
3b5dd52a JS |
4866 | } |
4867 | ||
4868 | /** | |
4869 | * lpfc_bsg_mbox_cmd - process an fc bsg LPFC_BSG_VENDOR_MBOX command | |
4870 | * @job: MBOX fc_bsg_job for LPFC_BSG_VENDOR_MBOX. | |
4871 | **/ | |
4872 | static int | |
4873 | lpfc_bsg_mbox_cmd(struct fc_bsg_job *job) | |
4874 | { | |
4875 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
4876 | struct lpfc_hba *phba = vport->phba; | |
7ad20aa9 | 4877 | struct dfc_mbox_req *mbox_req; |
3b5dd52a JS |
4878 | int rc = 0; |
4879 | ||
7ad20aa9 | 4880 | /* mix-and-match backward compatibility */ |
3b5dd52a JS |
4881 | job->reply->reply_payload_rcv_len = 0; |
4882 | if (job->request_len < | |
4883 | sizeof(struct fc_bsg_request) + sizeof(struct dfc_mbox_req)) { | |
7ad20aa9 | 4884 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
1051e9b3 | 4885 | "2737 Mix-and-match backward compatibility " |
7ad20aa9 JS |
4886 | "between MBOX_REQ old size:%d and " |
4887 | "new request size:%d\n", | |
4888 | (int)(job->request_len - | |
4889 | sizeof(struct fc_bsg_request)), | |
4890 | (int)sizeof(struct dfc_mbox_req)); | |
4891 | mbox_req = (struct dfc_mbox_req *) | |
4892 | job->request->rqst_data.h_vendor.vendor_cmd; | |
4893 | mbox_req->extMboxTag = 0; | |
4894 | mbox_req->extSeqNum = 0; | |
3b5dd52a JS |
4895 | } |
4896 | ||
4897 | rc = lpfc_bsg_issue_mbox(phba, job, vport); | |
4898 | ||
3b5dd52a JS |
4899 | if (rc == 0) { |
4900 | /* job done */ | |
4901 | job->reply->result = 0; | |
4902 | job->dd_data = NULL; | |
4903 | job->job_done(job); | |
4904 | } else if (rc == 1) | |
4905 | /* job submitted, will complete later*/ | |
4906 | rc = 0; /* return zero, no error */ | |
4907 | else { | |
4908 | /* some error occurred */ | |
4909 | job->reply->result = rc; | |
4910 | job->dd_data = NULL; | |
4911 | } | |
4912 | ||
4913 | return rc; | |
4914 | } | |
4915 | ||
e2aed29f JS |
4916 | /** |
4917 | * lpfc_bsg_menlo_cmd_cmp - lpfc_menlo_cmd completion handler | |
4918 | * @phba: Pointer to HBA context object. | |
4919 | * @cmdiocbq: Pointer to command iocb. | |
4920 | * @rspiocbq: Pointer to response iocb. | |
4921 | * | |
4922 | * This function is the completion handler for iocbs issued using | |
4923 | * lpfc_menlo_cmd function. This function is called by the | |
4924 | * ring event handler function without any lock held. This function | |
4925 | * can be called from both worker thread context and interrupt | |
4926 | * context. This function also can be called from another thread which | |
4927 | * cleans up the SLI layer objects. | |
4928 | * This function copies the contents of the response iocb to the | |
4929 | * response iocb memory object provided by the caller of | |
4930 | * lpfc_sli_issue_iocb_wait and then wakes up the thread which | |
4931 | * sleeps for the iocb completion. | |
4932 | **/ | |
4933 | static void | |
4934 | lpfc_bsg_menlo_cmd_cmp(struct lpfc_hba *phba, | |
4935 | struct lpfc_iocbq *cmdiocbq, | |
4936 | struct lpfc_iocbq *rspiocbq) | |
4937 | { | |
4938 | struct bsg_job_data *dd_data; | |
4939 | struct fc_bsg_job *job; | |
4940 | IOCB_t *rsp; | |
a33c4f7b | 4941 | struct lpfc_dmabuf *bmp, *cmp, *rmp; |
e2aed29f JS |
4942 | struct lpfc_bsg_menlo *menlo; |
4943 | unsigned long flags; | |
4944 | struct menlo_response *menlo_resp; | |
a33c4f7b | 4945 | unsigned int rsp_size; |
e2aed29f JS |
4946 | int rc = 0; |
4947 | ||
e2aed29f | 4948 | dd_data = cmdiocbq->context1; |
a33c4f7b JS |
4949 | cmp = cmdiocbq->context2; |
4950 | bmp = cmdiocbq->context3; | |
e2aed29f | 4951 | menlo = &dd_data->context_un.menlo; |
a33c4f7b | 4952 | rmp = menlo->rmp; |
e2aed29f JS |
4953 | rsp = &rspiocbq->iocb; |
4954 | ||
a33c4f7b JS |
4955 | /* Determine if job has been aborted */ |
4956 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
4957 | job = dd_data->set_job; | |
4958 | if (job) { | |
4959 | /* Prevent timeout handling from trying to abort job */ | |
4960 | job->dd_data = NULL; | |
4961 | } | |
4962 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
4963 | ||
4964 | /* Copy the job data or set the failing status for the job */ | |
e2aed29f | 4965 | |
a33c4f7b JS |
4966 | if (job) { |
4967 | /* always return the xri, this would be used in the case | |
4968 | * of a menlo download to allow the data to be sent as a | |
4969 | * continuation of the exchange. | |
4970 | */ | |
4971 | ||
4972 | menlo_resp = (struct menlo_response *) | |
4973 | job->reply->reply_data.vendor_reply.vendor_rsp; | |
4974 | menlo_resp->xri = rsp->ulpContext; | |
4975 | if (rsp->ulpStatus) { | |
4976 | if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) { | |
4977 | switch (rsp->un.ulpWord[4] & IOERR_PARAM_MASK) { | |
4978 | case IOERR_SEQUENCE_TIMEOUT: | |
4979 | rc = -ETIMEDOUT; | |
4980 | break; | |
4981 | case IOERR_INVALID_RPI: | |
4982 | rc = -EFAULT; | |
4983 | break; | |
4984 | default: | |
4985 | rc = -EACCES; | |
4986 | break; | |
4987 | } | |
4988 | } else { | |
e2aed29f | 4989 | rc = -EACCES; |
e2aed29f | 4990 | } |
a33c4f7b JS |
4991 | } else { |
4992 | rsp_size = rsp->un.genreq64.bdl.bdeSize; | |
4993 | job->reply->reply_payload_rcv_len = | |
4994 | lpfc_bsg_copy_data(rmp, &job->reply_payload, | |
4995 | rsp_size, 0); | |
4996 | } | |
4997 | ||
4998 | } | |
e2aed29f | 4999 | |
e2aed29f | 5000 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
a33c4f7b JS |
5001 | lpfc_free_bsg_buffers(phba, cmp); |
5002 | lpfc_free_bsg_buffers(phba, rmp); | |
5003 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); | |
e2aed29f JS |
5004 | kfree(bmp); |
5005 | kfree(dd_data); | |
a33c4f7b JS |
5006 | |
5007 | /* Complete the job if active */ | |
5008 | ||
5009 | if (job) { | |
5010 | job->reply->result = rc; | |
5011 | job->job_done(job); | |
5012 | } | |
5013 | ||
e2aed29f JS |
5014 | return; |
5015 | } | |
5016 | ||
5017 | /** | |
5018 | * lpfc_menlo_cmd - send an ioctl for menlo hardware | |
5019 | * @job: fc_bsg_job to handle | |
5020 | * | |
5021 | * This function issues a gen request 64 CR ioctl for all menlo cmd requests, | |
5022 | * all the command completions will return the xri for the command. | |
5023 | * For menlo data requests a gen request 64 CX is used to continue the exchange | |
5024 | * supplied in the menlo request header xri field. | |
5025 | **/ | |
5026 | static int | |
5027 | lpfc_menlo_cmd(struct fc_bsg_job *job) | |
5028 | { | |
5029 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
5030 | struct lpfc_hba *phba = vport->phba; | |
a33c4f7b JS |
5031 | struct lpfc_iocbq *cmdiocbq; |
5032 | IOCB_t *cmd; | |
e2aed29f JS |
5033 | int rc = 0; |
5034 | struct menlo_command *menlo_cmd; | |
a33c4f7b | 5035 | struct lpfc_dmabuf *bmp = NULL, *cmp = NULL, *rmp = NULL; |
e2aed29f JS |
5036 | int request_nseg; |
5037 | int reply_nseg; | |
e2aed29f JS |
5038 | struct bsg_job_data *dd_data; |
5039 | struct ulp_bde64 *bpl = NULL; | |
5040 | ||
5041 | /* in case no data is returned return just the return code */ | |
5042 | job->reply->reply_payload_rcv_len = 0; | |
5043 | ||
5044 | if (job->request_len < | |
5045 | sizeof(struct fc_bsg_request) + | |
5046 | sizeof(struct menlo_command)) { | |
5047 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
5048 | "2784 Received MENLO_CMD request below " | |
5049 | "minimum size\n"); | |
5050 | rc = -ERANGE; | |
5051 | goto no_dd_data; | |
5052 | } | |
5053 | ||
5054 | if (job->reply_len < | |
5055 | sizeof(struct fc_bsg_request) + sizeof(struct menlo_response)) { | |
5056 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
5057 | "2785 Received MENLO_CMD reply below " | |
5058 | "minimum size\n"); | |
5059 | rc = -ERANGE; | |
5060 | goto no_dd_data; | |
5061 | } | |
5062 | ||
5063 | if (!(phba->menlo_flag & HBA_MENLO_SUPPORT)) { | |
5064 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
5065 | "2786 Adapter does not support menlo " | |
5066 | "commands\n"); | |
5067 | rc = -EPERM; | |
5068 | goto no_dd_data; | |
5069 | } | |
5070 | ||
5071 | menlo_cmd = (struct menlo_command *) | |
5072 | job->request->rqst_data.h_vendor.vendor_cmd; | |
5073 | ||
e2aed29f JS |
5074 | /* allocate our bsg tracking structure */ |
5075 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); | |
5076 | if (!dd_data) { | |
5077 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
5078 | "2787 Failed allocation of dd_data\n"); | |
5079 | rc = -ENOMEM; | |
5080 | goto no_dd_data; | |
5081 | } | |
5082 | ||
5083 | bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
5084 | if (!bmp) { | |
5085 | rc = -ENOMEM; | |
5086 | goto free_dd; | |
5087 | } | |
5088 | ||
a33c4f7b JS |
5089 | bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys); |
5090 | if (!bmp->virt) { | |
e2aed29f JS |
5091 | rc = -ENOMEM; |
5092 | goto free_bmp; | |
5093 | } | |
5094 | ||
a33c4f7b | 5095 | INIT_LIST_HEAD(&bmp->list); |
e2aed29f | 5096 | |
a33c4f7b JS |
5097 | bpl = (struct ulp_bde64 *)bmp->virt; |
5098 | request_nseg = LPFC_BPL_SIZE/sizeof(struct ulp_bde64); | |
5099 | cmp = lpfc_alloc_bsg_buffers(phba, job->request_payload.payload_len, | |
5100 | 1, bpl, &request_nseg); | |
5101 | if (!cmp) { | |
e2aed29f | 5102 | rc = -ENOMEM; |
a33c4f7b | 5103 | goto free_bmp; |
e2aed29f | 5104 | } |
a33c4f7b JS |
5105 | lpfc_bsg_copy_data(cmp, &job->request_payload, |
5106 | job->request_payload.payload_len, 1); | |
e2aed29f | 5107 | |
a33c4f7b JS |
5108 | bpl += request_nseg; |
5109 | reply_nseg = LPFC_BPL_SIZE/sizeof(struct ulp_bde64) - request_nseg; | |
5110 | rmp = lpfc_alloc_bsg_buffers(phba, job->reply_payload.payload_len, 0, | |
5111 | bpl, &reply_nseg); | |
5112 | if (!rmp) { | |
5113 | rc = -ENOMEM; | |
5114 | goto free_cmp; | |
e2aed29f JS |
5115 | } |
5116 | ||
a33c4f7b JS |
5117 | cmdiocbq = lpfc_sli_get_iocbq(phba); |
5118 | if (!cmdiocbq) { | |
5119 | rc = -ENOMEM; | |
5120 | goto free_rmp; | |
e2aed29f JS |
5121 | } |
5122 | ||
5123 | cmd = &cmdiocbq->iocb; | |
5124 | cmd->un.genreq64.bdl.ulpIoTag32 = 0; | |
5125 | cmd->un.genreq64.bdl.addrHigh = putPaddrHigh(bmp->phys); | |
5126 | cmd->un.genreq64.bdl.addrLow = putPaddrLow(bmp->phys); | |
5127 | cmd->un.genreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; | |
5128 | cmd->un.genreq64.bdl.bdeSize = | |
5129 | (request_nseg + reply_nseg) * sizeof(struct ulp_bde64); | |
5130 | cmd->un.genreq64.w5.hcsw.Fctl = (SI | LA); | |
5131 | cmd->un.genreq64.w5.hcsw.Dfctl = 0; | |
5132 | cmd->un.genreq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CMD; | |
5133 | cmd->un.genreq64.w5.hcsw.Type = MENLO_TRANSPORT_TYPE; /* 0xfe */ | |
5134 | cmd->ulpBdeCount = 1; | |
5135 | cmd->ulpClass = CLASS3; | |
5136 | cmd->ulpOwner = OWN_CHIP; | |
5137 | cmd->ulpLe = 1; /* Limited Edition */ | |
5138 | cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC; | |
5139 | cmdiocbq->vport = phba->pport; | |
5140 | /* We want the firmware to timeout before we do */ | |
5141 | cmd->ulpTimeout = MENLO_TIMEOUT - 5; | |
e2aed29f JS |
5142 | cmdiocbq->iocb_cmpl = lpfc_bsg_menlo_cmd_cmp; |
5143 | cmdiocbq->context1 = dd_data; | |
a33c4f7b JS |
5144 | cmdiocbq->context2 = cmp; |
5145 | cmdiocbq->context3 = bmp; | |
e2aed29f JS |
5146 | if (menlo_cmd->cmd == LPFC_BSG_VENDOR_MENLO_CMD) { |
5147 | cmd->ulpCommand = CMD_GEN_REQUEST64_CR; | |
5148 | cmd->ulpPU = MENLO_PU; /* 3 */ | |
5149 | cmd->un.ulpWord[4] = MENLO_DID; /* 0x0000FC0E */ | |
5150 | cmd->ulpContext = MENLO_CONTEXT; /* 0 */ | |
5151 | } else { | |
5152 | cmd->ulpCommand = CMD_GEN_REQUEST64_CX; | |
5153 | cmd->ulpPU = 1; | |
5154 | cmd->un.ulpWord[4] = 0; | |
5155 | cmd->ulpContext = menlo_cmd->xri; | |
5156 | } | |
5157 | ||
5158 | dd_data->type = TYPE_MENLO; | |
a33c4f7b | 5159 | dd_data->set_job = job; |
e2aed29f | 5160 | dd_data->context_un.menlo.cmdiocbq = cmdiocbq; |
a33c4f7b JS |
5161 | dd_data->context_un.menlo.rmp = rmp; |
5162 | job->dd_data = dd_data; | |
e2aed29f JS |
5163 | |
5164 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, | |
5165 | MENLO_TIMEOUT - 5); | |
5166 | if (rc == IOCB_SUCCESS) | |
5167 | return 0; /* done for now */ | |
5168 | ||
e2aed29f | 5169 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
a33c4f7b JS |
5170 | |
5171 | free_rmp: | |
5172 | lpfc_free_bsg_buffers(phba, rmp); | |
5173 | free_cmp: | |
5174 | lpfc_free_bsg_buffers(phba, cmp); | |
e2aed29f | 5175 | free_bmp: |
a33c4f7b JS |
5176 | if (bmp->virt) |
5177 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); | |
e2aed29f JS |
5178 | kfree(bmp); |
5179 | free_dd: | |
5180 | kfree(dd_data); | |
5181 | no_dd_data: | |
5182 | /* make error code available to userspace */ | |
5183 | job->reply->result = rc; | |
5184 | job->dd_data = NULL; | |
5185 | return rc; | |
5186 | } | |
b6e3b9c6 | 5187 | |
3b5dd52a JS |
5188 | /** |
5189 | * lpfc_bsg_hst_vendor - process a vendor-specific fc_bsg_job | |
5190 | * @job: fc_bsg_job to handle | |
5191 | **/ | |
5192 | static int | |
5193 | lpfc_bsg_hst_vendor(struct fc_bsg_job *job) | |
5194 | { | |
5195 | int command = job->request->rqst_data.h_vendor.vendor_cmd[0]; | |
5196 | int rc; | |
5197 | ||
5198 | switch (command) { | |
5199 | case LPFC_BSG_VENDOR_SET_CT_EVENT: | |
5200 | rc = lpfc_bsg_hba_set_event(job); | |
5201 | break; | |
5202 | case LPFC_BSG_VENDOR_GET_CT_EVENT: | |
5203 | rc = lpfc_bsg_hba_get_event(job); | |
5204 | break; | |
5205 | case LPFC_BSG_VENDOR_SEND_MGMT_RESP: | |
5206 | rc = lpfc_bsg_send_mgmt_rsp(job); | |
5207 | break; | |
5208 | case LPFC_BSG_VENDOR_DIAG_MODE: | |
7ad20aa9 JS |
5209 | rc = lpfc_bsg_diag_loopback_mode(job); |
5210 | break; | |
5211 | case LPFC_BSG_VENDOR_DIAG_MODE_END: | |
5212 | rc = lpfc_sli4_bsg_diag_mode_end(job); | |
5213 | break; | |
5214 | case LPFC_BSG_VENDOR_DIAG_RUN_LOOPBACK: | |
5215 | rc = lpfc_bsg_diag_loopback_run(job); | |
3b5dd52a | 5216 | break; |
7ad20aa9 JS |
5217 | case LPFC_BSG_VENDOR_LINK_DIAG_TEST: |
5218 | rc = lpfc_sli4_bsg_link_diag_test(job); | |
3b5dd52a JS |
5219 | break; |
5220 | case LPFC_BSG_VENDOR_GET_MGMT_REV: | |
5221 | rc = lpfc_bsg_get_dfc_rev(job); | |
5222 | break; | |
5223 | case LPFC_BSG_VENDOR_MBOX: | |
5224 | rc = lpfc_bsg_mbox_cmd(job); | |
5225 | break; | |
e2aed29f JS |
5226 | case LPFC_BSG_VENDOR_MENLO_CMD: |
5227 | case LPFC_BSG_VENDOR_MENLO_DATA: | |
5228 | rc = lpfc_menlo_cmd(job); | |
5229 | break; | |
3b5dd52a JS |
5230 | default: |
5231 | rc = -EINVAL; | |
5232 | job->reply->reply_payload_rcv_len = 0; | |
5233 | /* make error code available to userspace */ | |
5234 | job->reply->result = rc; | |
5235 | break; | |
5236 | } | |
5237 | ||
5238 | return rc; | |
5239 | } | |
5240 | ||
5241 | /** | |
5242 | * lpfc_bsg_request - handle a bsg request from the FC transport | |
5243 | * @job: fc_bsg_job to handle | |
5244 | **/ | |
5245 | int | |
5246 | lpfc_bsg_request(struct fc_bsg_job *job) | |
5247 | { | |
5248 | uint32_t msgcode; | |
5249 | int rc; | |
5250 | ||
5251 | msgcode = job->request->msgcode; | |
5252 | switch (msgcode) { | |
5253 | case FC_BSG_HST_VENDOR: | |
5254 | rc = lpfc_bsg_hst_vendor(job); | |
5255 | break; | |
5256 | case FC_BSG_RPT_ELS: | |
5257 | rc = lpfc_bsg_rport_els(job); | |
5258 | break; | |
5259 | case FC_BSG_RPT_CT: | |
5260 | rc = lpfc_bsg_send_mgmt_cmd(job); | |
5261 | break; | |
5262 | default: | |
5263 | rc = -EINVAL; | |
5264 | job->reply->reply_payload_rcv_len = 0; | |
5265 | /* make error code available to userspace */ | |
5266 | job->reply->result = rc; | |
5267 | break; | |
5268 | } | |
5269 | ||
5270 | return rc; | |
5271 | } | |
5272 | ||
5273 | /** | |
5274 | * lpfc_bsg_timeout - handle timeout of a bsg request from the FC transport | |
5275 | * @job: fc_bsg_job that has timed out | |
5276 | * | |
5277 | * This function just aborts the job's IOCB. The aborted IOCB will return to | |
5278 | * the waiting function which will handle passing the error back to userspace | |
5279 | **/ | |
5280 | int | |
5281 | lpfc_bsg_timeout(struct fc_bsg_job *job) | |
5282 | { | |
5283 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
5284 | struct lpfc_hba *phba = vport->phba; | |
5285 | struct lpfc_iocbq *cmdiocb; | |
3b5dd52a JS |
5286 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; |
5287 | struct bsg_job_data *dd_data; | |
5288 | unsigned long flags; | |
a33c4f7b JS |
5289 | int rc = 0; |
5290 | LIST_HEAD(completions); | |
5291 | struct lpfc_iocbq *check_iocb, *next_iocb; | |
5292 | ||
5293 | /* if job's driver data is NULL, the command completed or is in the | |
5294 | * the process of completing. In this case, return status to request | |
5295 | * so the timeout is retried. This avoids double completion issues | |
5296 | * and the request will be pulled off the timer queue when the | |
5297 | * command's completion handler executes. Otherwise, prevent the | |
5298 | * command's completion handler from executing the job done callback | |
5299 | * and continue processing to abort the outstanding the command. | |
5300 | */ | |
3b5dd52a JS |
5301 | |
5302 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
5303 | dd_data = (struct bsg_job_data *)job->dd_data; | |
a33c4f7b JS |
5304 | if (dd_data) { |
5305 | dd_data->set_job = NULL; | |
5306 | job->dd_data = NULL; | |
5307 | } else { | |
3b5dd52a | 5308 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
a33c4f7b | 5309 | return -EAGAIN; |
4cc0e56e JS |
5310 | } |
5311 | ||
5312 | switch (dd_data->type) { | |
5313 | case TYPE_IOCB: | |
a33c4f7b JS |
5314 | /* Check to see if IOCB was issued to the port or not. If not, |
5315 | * remove it from the txq queue and call cancel iocbs. | |
5316 | * Otherwise, call abort iotag | |
5317 | */ | |
a33c4f7b | 5318 | cmdiocb = dd_data->context_un.iocb.cmdiocbq; |
b5a9b2df JS |
5319 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
5320 | ||
5321 | spin_lock_irqsave(&phba->hbalock, flags); | |
5322 | /* make sure the I/O abort window is still open */ | |
1b8d11ab | 5323 | if (!(cmdiocb->iocb_flag & LPFC_IO_CMD_OUTSTANDING)) { |
b5a9b2df JS |
5324 | spin_unlock_irqrestore(&phba->hbalock, flags); |
5325 | return -EAGAIN; | |
5326 | } | |
a33c4f7b JS |
5327 | list_for_each_entry_safe(check_iocb, next_iocb, &pring->txq, |
5328 | list) { | |
5329 | if (check_iocb == cmdiocb) { | |
5330 | list_move_tail(&check_iocb->list, &completions); | |
5331 | break; | |
5332 | } | |
5333 | } | |
5334 | if (list_empty(&completions)) | |
5335 | lpfc_sli_issue_abort_iotag(phba, pring, cmdiocb); | |
b5a9b2df | 5336 | spin_unlock_irqrestore(&phba->hbalock, flags); |
a33c4f7b JS |
5337 | if (!list_empty(&completions)) { |
5338 | lpfc_sli_cancel_iocbs(phba, &completions, | |
5339 | IOSTAT_LOCAL_REJECT, | |
5340 | IOERR_SLI_ABORTED); | |
5341 | } | |
4cc0e56e | 5342 | break; |
a33c4f7b | 5343 | |
4cc0e56e | 5344 | case TYPE_EVT: |
4cc0e56e | 5345 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
4cc0e56e | 5346 | break; |
a33c4f7b | 5347 | |
3b5dd52a | 5348 | case TYPE_MBOX: |
a33c4f7b JS |
5349 | /* Update the ext buf ctx state if needed */ |
5350 | ||
7ad20aa9 JS |
5351 | if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_PORT) |
5352 | phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_ABTS; | |
a33c4f7b | 5353 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
3b5dd52a | 5354 | break; |
e2aed29f | 5355 | case TYPE_MENLO: |
a33c4f7b JS |
5356 | /* Check to see if IOCB was issued to the port or not. If not, |
5357 | * remove it from the txq queue and call cancel iocbs. | |
5358 | * Otherwise, call abort iotag. | |
5359 | */ | |
a33c4f7b | 5360 | cmdiocb = dd_data->context_un.menlo.cmdiocbq; |
b5a9b2df JS |
5361 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
5362 | ||
5363 | spin_lock_irqsave(&phba->hbalock, flags); | |
a33c4f7b JS |
5364 | list_for_each_entry_safe(check_iocb, next_iocb, &pring->txq, |
5365 | list) { | |
5366 | if (check_iocb == cmdiocb) { | |
5367 | list_move_tail(&check_iocb->list, &completions); | |
5368 | break; | |
5369 | } | |
5370 | } | |
5371 | if (list_empty(&completions)) | |
5372 | lpfc_sli_issue_abort_iotag(phba, pring, cmdiocb); | |
b5a9b2df | 5373 | spin_unlock_irqrestore(&phba->hbalock, flags); |
a33c4f7b JS |
5374 | if (!list_empty(&completions)) { |
5375 | lpfc_sli_cancel_iocbs(phba, &completions, | |
5376 | IOSTAT_LOCAL_REJECT, | |
5377 | IOERR_SLI_ABORTED); | |
5378 | } | |
e2aed29f | 5379 | break; |
4cc0e56e JS |
5380 | default: |
5381 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
5382 | break; | |
5383 | } | |
f1c3b0fc | 5384 | |
4cc0e56e JS |
5385 | /* scsi transport fc fc_bsg_job_timeout expects a zero return code, |
5386 | * otherwise an error message will be displayed on the console | |
5387 | * so always return success (zero) | |
5388 | */ | |
a33c4f7b | 5389 | return rc; |
f1c3b0fc | 5390 | } |