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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; | |
907 | uint32_t len; | |
908 | struct lpfc_dmabuf *dmabuf = NULL; | |
4cc0e56e | 909 | struct lpfc_bsg_event *evt; |
f1c3b0fc JS |
910 | struct event_data *evt_dat = NULL; |
911 | struct lpfc_iocbq *iocbq; | |
912 | size_t offset = 0; | |
913 | struct list_head head; | |
914 | struct ulp_bde64 *bde; | |
915 | dma_addr_t dma_addr; | |
916 | int i; | |
917 | struct lpfc_dmabuf *bdeBuf1 = piocbq->context2; | |
918 | struct lpfc_dmabuf *bdeBuf2 = piocbq->context3; | |
919 | struct lpfc_hbq_entry *hbqe; | |
920 | struct lpfc_sli_ct_request *ct_req; | |
4cc0e56e | 921 | struct fc_bsg_job *job = NULL; |
a33c4f7b | 922 | struct bsg_job_data *dd_data = NULL; |
4fede78f | 923 | unsigned long flags; |
4cc0e56e | 924 | int size = 0; |
f1c3b0fc JS |
925 | |
926 | INIT_LIST_HEAD(&head); | |
927 | list_add_tail(&head, &piocbq->list); | |
928 | ||
929 | if (piocbq->iocb.ulpBdeCount == 0 || | |
930 | piocbq->iocb.un.cont64[0].tus.f.bdeSize == 0) | |
931 | goto error_ct_unsol_exit; | |
932 | ||
4cc0e56e JS |
933 | if (phba->link_state == LPFC_HBA_ERROR || |
934 | (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE))) | |
935 | goto error_ct_unsol_exit; | |
936 | ||
f1c3b0fc JS |
937 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) |
938 | dmabuf = bdeBuf1; | |
939 | else { | |
940 | dma_addr = getPaddr(piocbq->iocb.un.cont64[0].addrHigh, | |
941 | piocbq->iocb.un.cont64[0].addrLow); | |
942 | dmabuf = lpfc_sli_ringpostbuf_get(phba, pring, dma_addr); | |
943 | } | |
4cc0e56e JS |
944 | if (dmabuf == NULL) |
945 | goto error_ct_unsol_exit; | |
f1c3b0fc JS |
946 | ct_req = (struct lpfc_sli_ct_request *)dmabuf->virt; |
947 | evt_req_id = ct_req->FsType; | |
948 | cmd = ct_req->CommandResponse.bits.CmdRsp; | |
949 | len = ct_req->CommandResponse.bits.Size; | |
950 | if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) | |
951 | lpfc_sli_ringpostbuf_put(phba, pring, dmabuf); | |
952 | ||
4fede78f | 953 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
f1c3b0fc | 954 | list_for_each_entry(evt, &phba->ct_ev_waiters, node) { |
4cc0e56e JS |
955 | if (!(evt->type_mask & FC_REG_CT_EVENT) || |
956 | evt->req_id != evt_req_id) | |
f1c3b0fc JS |
957 | continue; |
958 | ||
4cc0e56e JS |
959 | lpfc_bsg_event_ref(evt); |
960 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
f1c3b0fc | 961 | evt_dat = kzalloc(sizeof(*evt_dat), GFP_KERNEL); |
4cc0e56e JS |
962 | if (evt_dat == NULL) { |
963 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
964 | lpfc_bsg_event_unref(evt); | |
f1c3b0fc JS |
965 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
966 | "2614 Memory allocation failed for " | |
967 | "CT event\n"); | |
968 | break; | |
969 | } | |
970 | ||
f1c3b0fc JS |
971 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
972 | /* take accumulated byte count from the last iocbq */ | |
973 | iocbq = list_entry(head.prev, typeof(*iocbq), list); | |
974 | evt_dat->len = iocbq->iocb.unsli3.rcvsli3.acc_len; | |
975 | } else { | |
976 | list_for_each_entry(iocbq, &head, list) { | |
977 | for (i = 0; i < iocbq->iocb.ulpBdeCount; i++) | |
978 | evt_dat->len += | |
979 | iocbq->iocb.un.cont64[i].tus.f.bdeSize; | |
980 | } | |
981 | } | |
982 | ||
983 | evt_dat->data = kzalloc(evt_dat->len, GFP_KERNEL); | |
4cc0e56e | 984 | if (evt_dat->data == NULL) { |
f1c3b0fc JS |
985 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
986 | "2615 Memory allocation failed for " | |
987 | "CT event data, size %d\n", | |
988 | evt_dat->len); | |
989 | kfree(evt_dat); | |
4fede78f | 990 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
4cc0e56e | 991 | lpfc_bsg_event_unref(evt); |
4fede78f | 992 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
f1c3b0fc JS |
993 | goto error_ct_unsol_exit; |
994 | } | |
995 | ||
996 | list_for_each_entry(iocbq, &head, list) { | |
4cc0e56e | 997 | size = 0; |
f1c3b0fc JS |
998 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
999 | bdeBuf1 = iocbq->context2; | |
1000 | bdeBuf2 = iocbq->context3; | |
1001 | } | |
1002 | for (i = 0; i < iocbq->iocb.ulpBdeCount; i++) { | |
f1c3b0fc JS |
1003 | if (phba->sli3_options & |
1004 | LPFC_SLI3_HBQ_ENABLED) { | |
1005 | if (i == 0) { | |
1006 | hbqe = (struct lpfc_hbq_entry *) | |
1007 | &iocbq->iocb.un.ulpWord[0]; | |
1008 | size = hbqe->bde.tus.f.bdeSize; | |
1009 | dmabuf = bdeBuf1; | |
1010 | } else if (i == 1) { | |
1011 | hbqe = (struct lpfc_hbq_entry *) | |
1012 | &iocbq->iocb.unsli3. | |
1013 | sli3Words[4]; | |
1014 | size = hbqe->bde.tus.f.bdeSize; | |
1015 | dmabuf = bdeBuf2; | |
1016 | } | |
1017 | if ((offset + size) > evt_dat->len) | |
1018 | size = evt_dat->len - offset; | |
1019 | } else { | |
1020 | size = iocbq->iocb.un.cont64[i]. | |
1021 | tus.f.bdeSize; | |
1022 | bde = &iocbq->iocb.un.cont64[i]; | |
1023 | dma_addr = getPaddr(bde->addrHigh, | |
1024 | bde->addrLow); | |
1025 | dmabuf = lpfc_sli_ringpostbuf_get(phba, | |
1026 | pring, dma_addr); | |
1027 | } | |
1028 | if (!dmabuf) { | |
1029 | lpfc_printf_log(phba, KERN_ERR, | |
1030 | LOG_LIBDFC, "2616 No dmabuf " | |
1031 | "found for iocbq 0x%p\n", | |
1032 | iocbq); | |
1033 | kfree(evt_dat->data); | |
1034 | kfree(evt_dat); | |
4fede78f JS |
1035 | spin_lock_irqsave(&phba->ct_ev_lock, |
1036 | flags); | |
4cc0e56e | 1037 | lpfc_bsg_event_unref(evt); |
4fede78f JS |
1038 | spin_unlock_irqrestore( |
1039 | &phba->ct_ev_lock, flags); | |
f1c3b0fc JS |
1040 | goto error_ct_unsol_exit; |
1041 | } | |
1042 | memcpy((char *)(evt_dat->data) + offset, | |
1043 | dmabuf->virt, size); | |
1044 | offset += size; | |
1045 | if (evt_req_id != SLI_CT_ELX_LOOPBACK && | |
1046 | !(phba->sli3_options & | |
1047 | LPFC_SLI3_HBQ_ENABLED)) { | |
1048 | lpfc_sli_ringpostbuf_put(phba, pring, | |
1049 | dmabuf); | |
1050 | } else { | |
1051 | switch (cmd) { | |
4cc0e56e | 1052 | case ELX_LOOPBACK_DATA: |
1b51197d JS |
1053 | if (phba->sli_rev < |
1054 | LPFC_SLI_REV4) | |
1055 | diag_cmd_data_free(phba, | |
1056 | (struct lpfc_dmabufext | |
1057 | *)dmabuf); | |
4cc0e56e | 1058 | break; |
f1c3b0fc | 1059 | case ELX_LOOPBACK_XRI_SETUP: |
4cc0e56e JS |
1060 | if ((phba->sli_rev == |
1061 | LPFC_SLI_REV2) || | |
1062 | (phba->sli3_options & | |
1063 | LPFC_SLI3_HBQ_ENABLED | |
1064 | )) { | |
1065 | lpfc_in_buf_free(phba, | |
1066 | dmabuf); | |
1067 | } else { | |
f1c3b0fc JS |
1068 | lpfc_post_buffer(phba, |
1069 | pring, | |
1070 | 1); | |
4cc0e56e | 1071 | } |
f1c3b0fc JS |
1072 | break; |
1073 | default: | |
1074 | if (!(phba->sli3_options & | |
1075 | LPFC_SLI3_HBQ_ENABLED)) | |
1076 | lpfc_post_buffer(phba, | |
1077 | pring, | |
1078 | 1); | |
1079 | break; | |
1080 | } | |
1081 | } | |
1082 | } | |
1083 | } | |
1084 | ||
4fede78f | 1085 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
f1c3b0fc JS |
1086 | if (phba->sli_rev == LPFC_SLI_REV4) { |
1087 | evt_dat->immed_dat = phba->ctx_idx; | |
6dd9e31c | 1088 | phba->ctx_idx = (phba->ctx_idx + 1) % LPFC_CT_CTX_MAX; |
589a52d6 | 1089 | /* Provide warning for over-run of the ct_ctx array */ |
6dd9e31c | 1090 | if (phba->ct_ctx[evt_dat->immed_dat].valid == |
589a52d6 JS |
1091 | UNSOL_VALID) |
1092 | lpfc_printf_log(phba, KERN_WARNING, LOG_ELS, | |
1093 | "2717 CT context array entry " | |
1094 | "[%d] over-run: oxid:x%x, " | |
1095 | "sid:x%x\n", phba->ctx_idx, | |
1096 | phba->ct_ctx[ | |
1097 | evt_dat->immed_dat].oxid, | |
1098 | phba->ct_ctx[ | |
1099 | evt_dat->immed_dat].SID); | |
7851fe2c JS |
1100 | phba->ct_ctx[evt_dat->immed_dat].rxid = |
1101 | piocbq->iocb.ulpContext; | |
f1c3b0fc | 1102 | phba->ct_ctx[evt_dat->immed_dat].oxid = |
7851fe2c | 1103 | piocbq->iocb.unsli3.rcvsli3.ox_id; |
f1c3b0fc JS |
1104 | phba->ct_ctx[evt_dat->immed_dat].SID = |
1105 | piocbq->iocb.un.rcvels.remoteID; | |
6dd9e31c | 1106 | phba->ct_ctx[evt_dat->immed_dat].valid = UNSOL_VALID; |
f1c3b0fc JS |
1107 | } else |
1108 | evt_dat->immed_dat = piocbq->iocb.ulpContext; | |
1109 | ||
1110 | evt_dat->type = FC_REG_CT_EVENT; | |
1111 | list_add(&evt_dat->node, &evt->events_to_see); | |
4cc0e56e JS |
1112 | if (evt_req_id == SLI_CT_ELX_LOOPBACK) { |
1113 | wake_up_interruptible(&evt->wq); | |
1114 | lpfc_bsg_event_unref(evt); | |
f1c3b0fc | 1115 | break; |
4cc0e56e JS |
1116 | } |
1117 | ||
1118 | list_move(evt->events_to_see.prev, &evt->events_to_get); | |
4cc0e56e | 1119 | |
a33c4f7b JS |
1120 | dd_data = (struct bsg_job_data *)evt->dd_data; |
1121 | job = dd_data->set_job; | |
1122 | dd_data->set_job = NULL; | |
1123 | lpfc_bsg_event_unref(evt); | |
4cc0e56e JS |
1124 | if (job) { |
1125 | job->reply->reply_payload_rcv_len = size; | |
1126 | /* make error code available to userspace */ | |
1127 | job->reply->result = 0; | |
1128 | job->dd_data = NULL; | |
1129 | /* complete the job back to userspace */ | |
1130 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
1131 | job->job_done(job); | |
1132 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
1133 | } | |
f1c3b0fc | 1134 | } |
4fede78f | 1135 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
f1c3b0fc JS |
1136 | |
1137 | error_ct_unsol_exit: | |
1138 | if (!list_empty(&head)) | |
1139 | list_del(&head); | |
1b51197d JS |
1140 | if ((phba->sli_rev < LPFC_SLI_REV4) && |
1141 | (evt_req_id == SLI_CT_ELX_LOOPBACK)) | |
4cc0e56e | 1142 | return 0; |
4fede78f | 1143 | return 1; |
f1c3b0fc JS |
1144 | } |
1145 | ||
6dd9e31c JS |
1146 | /** |
1147 | * lpfc_bsg_ct_unsol_abort - handler ct abort to management plane | |
1148 | * @phba: Pointer to HBA context object. | |
1149 | * @dmabuf: pointer to a dmabuf that describes the FC sequence | |
1150 | * | |
1151 | * This function handles abort to the CT command toward management plane | |
1152 | * for SLI4 port. | |
1153 | * | |
1154 | * If the pending context of a CT command to management plane present, clears | |
1155 | * such context and returns 1 for handled; otherwise, it returns 0 indicating | |
1156 | * no context exists. | |
1157 | **/ | |
1158 | int | |
1159 | lpfc_bsg_ct_unsol_abort(struct lpfc_hba *phba, struct hbq_dmabuf *dmabuf) | |
1160 | { | |
1161 | struct fc_frame_header fc_hdr; | |
1162 | struct fc_frame_header *fc_hdr_ptr = &fc_hdr; | |
1163 | int ctx_idx, handled = 0; | |
1164 | uint16_t oxid, rxid; | |
1165 | uint32_t sid; | |
1166 | ||
1167 | memcpy(fc_hdr_ptr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header)); | |
1168 | sid = sli4_sid_from_fc_hdr(fc_hdr_ptr); | |
1169 | oxid = be16_to_cpu(fc_hdr_ptr->fh_ox_id); | |
1170 | rxid = be16_to_cpu(fc_hdr_ptr->fh_rx_id); | |
1171 | ||
1172 | for (ctx_idx = 0; ctx_idx < LPFC_CT_CTX_MAX; ctx_idx++) { | |
1173 | if (phba->ct_ctx[ctx_idx].valid != UNSOL_VALID) | |
1174 | continue; | |
1175 | if (phba->ct_ctx[ctx_idx].rxid != rxid) | |
1176 | continue; | |
1177 | if (phba->ct_ctx[ctx_idx].oxid != oxid) | |
1178 | continue; | |
1179 | if (phba->ct_ctx[ctx_idx].SID != sid) | |
1180 | continue; | |
1181 | phba->ct_ctx[ctx_idx].valid = UNSOL_INVALID; | |
1182 | handled = 1; | |
1183 | } | |
1184 | return handled; | |
1185 | } | |
1186 | ||
f1c3b0fc | 1187 | /** |
4cc0e56e | 1188 | * lpfc_bsg_hba_set_event - process a SET_EVENT bsg vendor command |
f1c3b0fc | 1189 | * @job: SET_EVENT fc_bsg_job |
3b5dd52a | 1190 | **/ |
f1c3b0fc | 1191 | static int |
4cc0e56e | 1192 | lpfc_bsg_hba_set_event(struct fc_bsg_job *job) |
f1c3b0fc JS |
1193 | { |
1194 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
1195 | struct lpfc_hba *phba = vport->phba; | |
1196 | struct set_ct_event *event_req; | |
4cc0e56e | 1197 | struct lpfc_bsg_event *evt; |
f1c3b0fc | 1198 | int rc = 0; |
4cc0e56e JS |
1199 | struct bsg_job_data *dd_data = NULL; |
1200 | uint32_t ev_mask; | |
1201 | unsigned long flags; | |
f1c3b0fc JS |
1202 | |
1203 | if (job->request_len < | |
1204 | sizeof(struct fc_bsg_request) + sizeof(struct set_ct_event)) { | |
1205 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1206 | "2612 Received SET_CT_EVENT below minimum " | |
1207 | "size\n"); | |
4cc0e56e JS |
1208 | rc = -EINVAL; |
1209 | goto job_error; | |
1210 | } | |
1211 | ||
f1c3b0fc JS |
1212 | event_req = (struct set_ct_event *) |
1213 | job->request->rqst_data.h_vendor.vendor_cmd; | |
4cc0e56e JS |
1214 | ev_mask = ((uint32_t)(unsigned long)event_req->type_mask & |
1215 | FC_REG_EVENT_MASK); | |
4fede78f | 1216 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
f1c3b0fc JS |
1217 | list_for_each_entry(evt, &phba->ct_ev_waiters, node) { |
1218 | if (evt->reg_id == event_req->ev_reg_id) { | |
4cc0e56e | 1219 | lpfc_bsg_event_ref(evt); |
f1c3b0fc | 1220 | evt->wait_time_stamp = jiffies; |
a33c4f7b | 1221 | dd_data = (struct bsg_job_data *)evt->dd_data; |
f1c3b0fc JS |
1222 | break; |
1223 | } | |
1224 | } | |
4fede78f | 1225 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
f1c3b0fc JS |
1226 | |
1227 | if (&evt->node == &phba->ct_ev_waiters) { | |
1228 | /* no event waiting struct yet - first call */ | |
a33c4f7b JS |
1229 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); |
1230 | if (dd_data == NULL) { | |
1231 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1232 | "2734 Failed allocation of dd_data\n"); | |
1233 | rc = -ENOMEM; | |
1234 | goto job_error; | |
1235 | } | |
4cc0e56e | 1236 | evt = lpfc_bsg_event_new(ev_mask, event_req->ev_reg_id, |
f1c3b0fc JS |
1237 | event_req->ev_req_id); |
1238 | if (!evt) { | |
1239 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1240 | "2617 Failed allocation of event " | |
1241 | "waiter\n"); | |
4cc0e56e JS |
1242 | rc = -ENOMEM; |
1243 | goto job_error; | |
f1c3b0fc | 1244 | } |
a33c4f7b JS |
1245 | dd_data->type = TYPE_EVT; |
1246 | dd_data->set_job = NULL; | |
1247 | dd_data->context_un.evt = evt; | |
1248 | evt->dd_data = (void *)dd_data; | |
4fede78f | 1249 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
f1c3b0fc | 1250 | list_add(&evt->node, &phba->ct_ev_waiters); |
4cc0e56e JS |
1251 | lpfc_bsg_event_ref(evt); |
1252 | evt->wait_time_stamp = jiffies; | |
4fede78f | 1253 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
f1c3b0fc JS |
1254 | } |
1255 | ||
4fede78f | 1256 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
4cc0e56e | 1257 | evt->waiting = 1; |
a33c4f7b | 1258 | dd_data->set_job = job; /* for unsolicited command */ |
4cc0e56e | 1259 | job->dd_data = dd_data; /* for fc transport timeout callback*/ |
4fede78f | 1260 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
4cc0e56e | 1261 | return 0; /* call job done later */ |
f1c3b0fc | 1262 | |
4cc0e56e JS |
1263 | job_error: |
1264 | if (dd_data != NULL) | |
1265 | kfree(dd_data); | |
f1c3b0fc | 1266 | |
4cc0e56e JS |
1267 | job->dd_data = NULL; |
1268 | return rc; | |
f1c3b0fc JS |
1269 | } |
1270 | ||
1271 | /** | |
4cc0e56e | 1272 | * lpfc_bsg_hba_get_event - process a GET_EVENT bsg vendor command |
f1c3b0fc | 1273 | * @job: GET_EVENT fc_bsg_job |
3b5dd52a | 1274 | **/ |
f1c3b0fc | 1275 | static int |
4cc0e56e | 1276 | lpfc_bsg_hba_get_event(struct fc_bsg_job *job) |
f1c3b0fc JS |
1277 | { |
1278 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
1279 | struct lpfc_hba *phba = vport->phba; | |
1280 | struct get_ct_event *event_req; | |
1281 | struct get_ct_event_reply *event_reply; | |
9a803a74 | 1282 | struct lpfc_bsg_event *evt, *evt_next; |
f1c3b0fc | 1283 | struct event_data *evt_dat = NULL; |
4fede78f | 1284 | unsigned long flags; |
4cc0e56e | 1285 | uint32_t rc = 0; |
f1c3b0fc JS |
1286 | |
1287 | if (job->request_len < | |
1288 | sizeof(struct fc_bsg_request) + sizeof(struct get_ct_event)) { | |
1289 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1290 | "2613 Received GET_CT_EVENT request below " | |
1291 | "minimum size\n"); | |
4cc0e56e JS |
1292 | rc = -EINVAL; |
1293 | goto job_error; | |
f1c3b0fc JS |
1294 | } |
1295 | ||
1296 | event_req = (struct get_ct_event *) | |
1297 | job->request->rqst_data.h_vendor.vendor_cmd; | |
1298 | ||
1299 | event_reply = (struct get_ct_event_reply *) | |
1300 | job->reply->reply_data.vendor_reply.vendor_rsp; | |
4fede78f | 1301 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
9a803a74 | 1302 | list_for_each_entry_safe(evt, evt_next, &phba->ct_ev_waiters, node) { |
f1c3b0fc JS |
1303 | if (evt->reg_id == event_req->ev_reg_id) { |
1304 | if (list_empty(&evt->events_to_get)) | |
1305 | break; | |
4cc0e56e | 1306 | lpfc_bsg_event_ref(evt); |
f1c3b0fc JS |
1307 | evt->wait_time_stamp = jiffies; |
1308 | evt_dat = list_entry(evt->events_to_get.prev, | |
1309 | struct event_data, node); | |
1310 | list_del(&evt_dat->node); | |
1311 | break; | |
1312 | } | |
1313 | } | |
4fede78f | 1314 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
f1c3b0fc | 1315 | |
4cc0e56e JS |
1316 | /* The app may continue to ask for event data until it gets |
1317 | * an error indicating that there isn't anymore | |
1318 | */ | |
1319 | if (evt_dat == NULL) { | |
f1c3b0fc JS |
1320 | job->reply->reply_payload_rcv_len = 0; |
1321 | rc = -ENOENT; | |
4cc0e56e | 1322 | goto job_error; |
f1c3b0fc JS |
1323 | } |
1324 | ||
4cc0e56e JS |
1325 | if (evt_dat->len > job->request_payload.payload_len) { |
1326 | evt_dat->len = job->request_payload.payload_len; | |
1327 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1328 | "2618 Truncated event data at %d " | |
1329 | "bytes\n", | |
1330 | job->request_payload.payload_len); | |
f1c3b0fc JS |
1331 | } |
1332 | ||
4cc0e56e | 1333 | event_reply->type = evt_dat->type; |
f1c3b0fc | 1334 | event_reply->immed_data = evt_dat->immed_dat; |
f1c3b0fc JS |
1335 | if (evt_dat->len > 0) |
1336 | job->reply->reply_payload_rcv_len = | |
4cc0e56e JS |
1337 | sg_copy_from_buffer(job->request_payload.sg_list, |
1338 | job->request_payload.sg_cnt, | |
f1c3b0fc JS |
1339 | evt_dat->data, evt_dat->len); |
1340 | else | |
1341 | job->reply->reply_payload_rcv_len = 0; | |
f1c3b0fc | 1342 | |
4cc0e56e | 1343 | if (evt_dat) { |
f1c3b0fc | 1344 | kfree(evt_dat->data); |
4cc0e56e JS |
1345 | kfree(evt_dat); |
1346 | } | |
1347 | ||
4fede78f | 1348 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
4cc0e56e | 1349 | lpfc_bsg_event_unref(evt); |
4fede78f | 1350 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
4cc0e56e JS |
1351 | job->dd_data = NULL; |
1352 | job->reply->result = 0; | |
f1c3b0fc | 1353 | job->job_done(job); |
4cc0e56e | 1354 | return 0; |
f1c3b0fc | 1355 | |
4cc0e56e JS |
1356 | job_error: |
1357 | job->dd_data = NULL; | |
1358 | job->reply->result = rc; | |
f1c3b0fc JS |
1359 | return rc; |
1360 | } | |
1361 | ||
1362 | /** | |
3b5dd52a JS |
1363 | * lpfc_issue_ct_rsp_cmp - lpfc_issue_ct_rsp's completion handler |
1364 | * @phba: Pointer to HBA context object. | |
1365 | * @cmdiocbq: Pointer to command iocb. | |
1366 | * @rspiocbq: Pointer to response iocb. | |
1367 | * | |
1368 | * This function is the completion handler for iocbs issued using | |
1369 | * lpfc_issue_ct_rsp_cmp function. This function is called by the | |
1370 | * ring event handler function without any lock held. This function | |
1371 | * can be called from both worker thread context and interrupt | |
1372 | * context. This function also can be called from other thread which | |
1373 | * cleans up the SLI layer objects. | |
1374 | * This function copy the contents of the response iocb to the | |
1375 | * response iocb memory object provided by the caller of | |
1376 | * lpfc_sli_issue_iocb_wait and then wakes up the thread which | |
1377 | * sleeps for the iocb completion. | |
1378 | **/ | |
1379 | static void | |
1380 | lpfc_issue_ct_rsp_cmp(struct lpfc_hba *phba, | |
1381 | struct lpfc_iocbq *cmdiocbq, | |
1382 | struct lpfc_iocbq *rspiocbq) | |
1383 | { | |
1384 | struct bsg_job_data *dd_data; | |
1385 | struct fc_bsg_job *job; | |
1386 | IOCB_t *rsp; | |
a33c4f7b | 1387 | struct lpfc_dmabuf *bmp, *cmp; |
3b5dd52a JS |
1388 | struct lpfc_nodelist *ndlp; |
1389 | unsigned long flags; | |
1390 | int rc = 0; | |
1391 | ||
a33c4f7b JS |
1392 | dd_data = cmdiocbq->context1; |
1393 | ||
1394 | /* Determine if job has been aborted */ | |
3b5dd52a | 1395 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
a33c4f7b JS |
1396 | job = dd_data->set_job; |
1397 | if (job) { | |
1398 | /* Prevent timeout handling from trying to abort job */ | |
1399 | job->dd_data = NULL; | |
3b5dd52a | 1400 | } |
a33c4f7b | 1401 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
3b5dd52a | 1402 | |
b5a9b2df JS |
1403 | /* Close the timeout handler abort window */ |
1404 | spin_lock_irqsave(&phba->hbalock, flags); | |
1b8d11ab | 1405 | cmdiocbq->iocb_flag &= ~LPFC_IO_CMD_OUTSTANDING; |
b5a9b2df JS |
1406 | spin_unlock_irqrestore(&phba->hbalock, flags); |
1407 | ||
3b5dd52a | 1408 | ndlp = dd_data->context_un.iocb.ndlp; |
a33c4f7b JS |
1409 | cmp = cmdiocbq->context2; |
1410 | bmp = cmdiocbq->context3; | |
1411 | rsp = &rspiocbq->iocb; | |
3b5dd52a | 1412 | |
a33c4f7b | 1413 | /* Copy the completed job data or set the error status */ |
3b5dd52a | 1414 | |
a33c4f7b JS |
1415 | if (job) { |
1416 | if (rsp->ulpStatus) { | |
1417 | if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) { | |
1418 | switch (rsp->un.ulpWord[4] & IOERR_PARAM_MASK) { | |
1419 | case IOERR_SEQUENCE_TIMEOUT: | |
1420 | rc = -ETIMEDOUT; | |
1421 | break; | |
1422 | case IOERR_INVALID_RPI: | |
1423 | rc = -EFAULT; | |
1424 | break; | |
1425 | default: | |
1426 | rc = -EACCES; | |
1427 | break; | |
1428 | } | |
1429 | } else { | |
3b5dd52a | 1430 | rc = -EACCES; |
3b5dd52a | 1431 | } |
a33c4f7b JS |
1432 | } else { |
1433 | job->reply->reply_payload_rcv_len = 0; | |
1434 | } | |
1435 | } | |
3b5dd52a | 1436 | |
a33c4f7b | 1437 | lpfc_free_bsg_buffers(phba, cmp); |
3b5dd52a | 1438 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); |
a33c4f7b | 1439 | kfree(bmp); |
3b5dd52a JS |
1440 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
1441 | lpfc_nlp_put(ndlp); | |
3b5dd52a | 1442 | kfree(dd_data); |
a33c4f7b JS |
1443 | |
1444 | /* Complete the job if the job is still active */ | |
1445 | ||
1446 | if (job) { | |
1447 | job->reply->result = rc; | |
1448 | job->job_done(job); | |
1449 | } | |
3b5dd52a JS |
1450 | return; |
1451 | } | |
1452 | ||
1453 | /** | |
1454 | * lpfc_issue_ct_rsp - issue a ct response | |
1455 | * @phba: Pointer to HBA context object. | |
1456 | * @job: Pointer to the job object. | |
1457 | * @tag: tag index value into the ports context exchange array. | |
1458 | * @bmp: Pointer to a dma buffer descriptor. | |
1459 | * @num_entry: Number of enties in the bde. | |
1460 | **/ | |
f1c3b0fc | 1461 | static int |
3b5dd52a | 1462 | lpfc_issue_ct_rsp(struct lpfc_hba *phba, struct fc_bsg_job *job, uint32_t tag, |
a33c4f7b JS |
1463 | struct lpfc_dmabuf *cmp, struct lpfc_dmabuf *bmp, |
1464 | int num_entry) | |
f1c3b0fc | 1465 | { |
3b5dd52a JS |
1466 | IOCB_t *icmd; |
1467 | struct lpfc_iocbq *ctiocb = NULL; | |
1468 | int rc = 0; | |
1469 | struct lpfc_nodelist *ndlp = NULL; | |
1470 | struct bsg_job_data *dd_data; | |
b5a9b2df | 1471 | unsigned long flags; |
3b5dd52a | 1472 | uint32_t creg_val; |
f1c3b0fc | 1473 | |
3b5dd52a JS |
1474 | /* allocate our bsg tracking structure */ |
1475 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); | |
1476 | if (!dd_data) { | |
1477 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1478 | "2736 Failed allocation of dd_data\n"); | |
1479 | rc = -ENOMEM; | |
1480 | goto no_dd_data; | |
1481 | } | |
f1c3b0fc | 1482 | |
3b5dd52a JS |
1483 | /* Allocate buffer for command iocb */ |
1484 | ctiocb = lpfc_sli_get_iocbq(phba); | |
1485 | if (!ctiocb) { | |
d439d286 | 1486 | rc = -ENOMEM; |
3b5dd52a JS |
1487 | goto no_ctiocb; |
1488 | } | |
1489 | ||
1490 | icmd = &ctiocb->iocb; | |
1491 | icmd->un.xseq64.bdl.ulpIoTag32 = 0; | |
1492 | icmd->un.xseq64.bdl.addrHigh = putPaddrHigh(bmp->phys); | |
1493 | icmd->un.xseq64.bdl.addrLow = putPaddrLow(bmp->phys); | |
1494 | icmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; | |
1495 | icmd->un.xseq64.bdl.bdeSize = (num_entry * sizeof(struct ulp_bde64)); | |
1496 | icmd->un.xseq64.w5.hcsw.Fctl = (LS | LA); | |
1497 | icmd->un.xseq64.w5.hcsw.Dfctl = 0; | |
1498 | icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_SOL_CTL; | |
1499 | icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT; | |
1500 | ||
1501 | /* Fill in rest of iocb */ | |
1502 | icmd->ulpCommand = CMD_XMIT_SEQUENCE64_CX; | |
1503 | icmd->ulpBdeCount = 1; | |
1504 | icmd->ulpLe = 1; | |
1505 | icmd->ulpClass = CLASS3; | |
1506 | if (phba->sli_rev == LPFC_SLI_REV4) { | |
1507 | /* Do not issue unsol response if oxid not marked as valid */ | |
6dd9e31c | 1508 | if (phba->ct_ctx[tag].valid != UNSOL_VALID) { |
3b5dd52a JS |
1509 | rc = IOCB_ERROR; |
1510 | goto issue_ct_rsp_exit; | |
1511 | } | |
7851fe2c JS |
1512 | icmd->ulpContext = phba->ct_ctx[tag].rxid; |
1513 | icmd->unsli3.rcvsli3.ox_id = phba->ct_ctx[tag].oxid; | |
3b5dd52a JS |
1514 | ndlp = lpfc_findnode_did(phba->pport, phba->ct_ctx[tag].SID); |
1515 | if (!ndlp) { | |
1516 | lpfc_printf_log(phba, KERN_WARNING, LOG_ELS, | |
1517 | "2721 ndlp null for oxid %x SID %x\n", | |
1518 | icmd->ulpContext, | |
1519 | phba->ct_ctx[tag].SID); | |
1520 | rc = IOCB_ERROR; | |
1521 | goto issue_ct_rsp_exit; | |
1522 | } | |
589a52d6 JS |
1523 | |
1524 | /* Check if the ndlp is active */ | |
1525 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { | |
a33c4f7b | 1526 | rc = IOCB_ERROR; |
589a52d6 JS |
1527 | goto issue_ct_rsp_exit; |
1528 | } | |
1529 | ||
1530 | /* get a refernece count so the ndlp doesn't go away while | |
1531 | * we respond | |
1532 | */ | |
1533 | if (!lpfc_nlp_get(ndlp)) { | |
a33c4f7b | 1534 | rc = IOCB_ERROR; |
589a52d6 JS |
1535 | goto issue_ct_rsp_exit; |
1536 | } | |
1537 | ||
7851fe2c | 1538 | icmd->un.ulpWord[3] = |
6d368e53 JS |
1539 | phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; |
1540 | ||
3b5dd52a | 1541 | /* The exchange is done, mark the entry as invalid */ |
6dd9e31c | 1542 | phba->ct_ctx[tag].valid = UNSOL_INVALID; |
3b5dd52a JS |
1543 | } else |
1544 | icmd->ulpContext = (ushort) tag; | |
1545 | ||
1546 | icmd->ulpTimeout = phba->fc_ratov * 2; | |
1547 | ||
1548 | /* Xmit CT response on exchange <xid> */ | |
1549 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS, | |
7851fe2c JS |
1550 | "2722 Xmit CT response on exchange x%x Data: x%x x%x x%x\n", |
1551 | icmd->ulpContext, icmd->ulpIoTag, tag, phba->link_state); | |
3b5dd52a JS |
1552 | |
1553 | ctiocb->iocb_cmpl = NULL; | |
1554 | ctiocb->iocb_flag |= LPFC_IO_LIBDFC; | |
1555 | ctiocb->vport = phba->pport; | |
a33c4f7b JS |
1556 | ctiocb->context1 = dd_data; |
1557 | ctiocb->context2 = cmp; | |
3b5dd52a | 1558 | ctiocb->context3 = bmp; |
d5ce53b7 | 1559 | ctiocb->context_un.ndlp = ndlp; |
3b5dd52a | 1560 | ctiocb->iocb_cmpl = lpfc_issue_ct_rsp_cmp; |
a33c4f7b | 1561 | |
3b5dd52a | 1562 | dd_data->type = TYPE_IOCB; |
a33c4f7b | 1563 | dd_data->set_job = job; |
3b5dd52a | 1564 | dd_data->context_un.iocb.cmdiocbq = ctiocb; |
3b5dd52a | 1565 | dd_data->context_un.iocb.ndlp = ndlp; |
a33c4f7b JS |
1566 | dd_data->context_un.iocb.rmp = NULL; |
1567 | job->dd_data = dd_data; | |
3b5dd52a JS |
1568 | |
1569 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { | |
9940b97b JS |
1570 | if (lpfc_readl(phba->HCregaddr, &creg_val)) { |
1571 | rc = -IOCB_ERROR; | |
1572 | goto issue_ct_rsp_exit; | |
1573 | } | |
3b5dd52a JS |
1574 | creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); |
1575 | writel(creg_val, phba->HCregaddr); | |
1576 | readl(phba->HCregaddr); /* flush */ | |
f1c3b0fc | 1577 | } |
4cc0e56e | 1578 | |
3b5dd52a JS |
1579 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0); |
1580 | ||
b5a9b2df JS |
1581 | if (rc == IOCB_SUCCESS) { |
1582 | spin_lock_irqsave(&phba->hbalock, flags); | |
1583 | /* make sure the I/O had not been completed/released */ | |
1584 | if (ctiocb->iocb_flag & LPFC_IO_LIBDFC) { | |
1585 | /* open up abort window to timeout handler */ | |
1b8d11ab | 1586 | ctiocb->iocb_flag |= LPFC_IO_CMD_OUTSTANDING; |
b5a9b2df JS |
1587 | } |
1588 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
3b5dd52a | 1589 | return 0; /* done for now */ |
b5a9b2df JS |
1590 | } |
1591 | ||
1592 | /* iocb failed so cleanup */ | |
1593 | job->dd_data = NULL; | |
3b5dd52a JS |
1594 | |
1595 | issue_ct_rsp_exit: | |
1596 | lpfc_sli_release_iocbq(phba, ctiocb); | |
1597 | no_ctiocb: | |
1598 | kfree(dd_data); | |
1599 | no_dd_data: | |
4cc0e56e | 1600 | return rc; |
f1c3b0fc JS |
1601 | } |
1602 | ||
1603 | /** | |
3b5dd52a JS |
1604 | * lpfc_bsg_send_mgmt_rsp - process a SEND_MGMT_RESP bsg vendor command |
1605 | * @job: SEND_MGMT_RESP fc_bsg_job | |
1606 | **/ | |
1607 | static int | |
1608 | lpfc_bsg_send_mgmt_rsp(struct fc_bsg_job *job) | |
f1c3b0fc | 1609 | { |
3b5dd52a JS |
1610 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; |
1611 | struct lpfc_hba *phba = vport->phba; | |
1612 | struct send_mgmt_resp *mgmt_resp = (struct send_mgmt_resp *) | |
1613 | job->request->rqst_data.h_vendor.vendor_cmd; | |
1614 | struct ulp_bde64 *bpl; | |
a33c4f7b JS |
1615 | struct lpfc_dmabuf *bmp = NULL, *cmp = NULL; |
1616 | int bpl_entries; | |
3b5dd52a JS |
1617 | uint32_t tag = mgmt_resp->tag; |
1618 | unsigned long reqbfrcnt = | |
1619 | (unsigned long)job->request_payload.payload_len; | |
1620 | int rc = 0; | |
f1c3b0fc | 1621 | |
3b5dd52a JS |
1622 | /* in case no data is transferred */ |
1623 | job->reply->reply_payload_rcv_len = 0; | |
1624 | ||
1625 | if (!reqbfrcnt || (reqbfrcnt > (80 * BUF_SZ_4K))) { | |
1626 | rc = -ERANGE; | |
1627 | goto send_mgmt_rsp_exit; | |
1628 | } | |
1629 | ||
1630 | bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
1631 | if (!bmp) { | |
1632 | rc = -ENOMEM; | |
1633 | goto send_mgmt_rsp_exit; | |
1634 | } | |
1635 | ||
1636 | bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys); | |
1637 | if (!bmp->virt) { | |
1638 | rc = -ENOMEM; | |
1639 | goto send_mgmt_rsp_free_bmp; | |
1640 | } | |
1641 | ||
1642 | INIT_LIST_HEAD(&bmp->list); | |
1643 | bpl = (struct ulp_bde64 *) bmp->virt; | |
a33c4f7b JS |
1644 | bpl_entries = (LPFC_BPL_SIZE/sizeof(struct ulp_bde64)); |
1645 | cmp = lpfc_alloc_bsg_buffers(phba, job->request_payload.payload_len, | |
1646 | 1, bpl, &bpl_entries); | |
1647 | if (!cmp) { | |
1648 | rc = -ENOMEM; | |
1649 | goto send_mgmt_rsp_free_bmp; | |
f1c3b0fc | 1650 | } |
a33c4f7b JS |
1651 | lpfc_bsg_copy_data(cmp, &job->request_payload, |
1652 | job->request_payload.payload_len, 1); | |
f1c3b0fc | 1653 | |
a33c4f7b | 1654 | rc = lpfc_issue_ct_rsp(phba, job, tag, cmp, bmp, bpl_entries); |
3b5dd52a JS |
1655 | |
1656 | if (rc == IOCB_SUCCESS) | |
1657 | return 0; /* done for now */ | |
1658 | ||
3b5dd52a | 1659 | rc = -EACCES; |
a33c4f7b JS |
1660 | |
1661 | lpfc_free_bsg_buffers(phba, cmp); | |
3b5dd52a JS |
1662 | |
1663 | send_mgmt_rsp_free_bmp: | |
a33c4f7b JS |
1664 | if (bmp->virt) |
1665 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); | |
3b5dd52a JS |
1666 | kfree(bmp); |
1667 | send_mgmt_rsp_exit: | |
1668 | /* make error code available to userspace */ | |
1669 | job->reply->result = rc; | |
1670 | job->dd_data = NULL; | |
f1c3b0fc JS |
1671 | return rc; |
1672 | } | |
1673 | ||
1674 | /** | |
7ad20aa9 JS |
1675 | * lpfc_bsg_diag_mode_enter - process preparing into device diag loopback mode |
1676 | * @phba: Pointer to HBA context object. | |
7ad20aa9 JS |
1677 | * |
1678 | * This function is responsible for preparing driver for diag loopback | |
1679 | * on device. | |
1680 | */ | |
1681 | static int | |
88a2cfbb | 1682 | lpfc_bsg_diag_mode_enter(struct lpfc_hba *phba) |
7ad20aa9 JS |
1683 | { |
1684 | struct lpfc_vport **vports; | |
1685 | struct Scsi_Host *shost; | |
1686 | struct lpfc_sli *psli; | |
1687 | struct lpfc_sli_ring *pring; | |
1688 | int i = 0; | |
1689 | ||
1690 | psli = &phba->sli; | |
1691 | if (!psli) | |
1692 | return -ENODEV; | |
1693 | ||
1694 | pring = &psli->ring[LPFC_FCP_RING]; | |
1695 | if (!pring) | |
1696 | return -ENODEV; | |
1697 | ||
1698 | if ((phba->link_state == LPFC_HBA_ERROR) || | |
1699 | (psli->sli_flag & LPFC_BLOCK_MGMT_IO) || | |
1700 | (!(psli->sli_flag & LPFC_SLI_ACTIVE))) | |
1701 | return -EACCES; | |
1702 | ||
1703 | vports = lpfc_create_vport_work_array(phba); | |
1704 | if (vports) { | |
1705 | for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) { | |
1706 | shost = lpfc_shost_from_vport(vports[i]); | |
1707 | scsi_block_requests(shost); | |
1708 | } | |
1709 | lpfc_destroy_vport_work_array(phba, vports); | |
1710 | } else { | |
1711 | shost = lpfc_shost_from_vport(phba->pport); | |
1712 | scsi_block_requests(shost); | |
1713 | } | |
1714 | ||
0e9bb8d7 | 1715 | while (!list_empty(&pring->txcmplq)) { |
7ad20aa9 JS |
1716 | if (i++ > 500) /* wait up to 5 seconds */ |
1717 | break; | |
1718 | msleep(10); | |
1719 | } | |
1720 | return 0; | |
1721 | } | |
1722 | ||
1723 | /** | |
1724 | * lpfc_bsg_diag_mode_exit - exit process from device diag loopback mode | |
1725 | * @phba: Pointer to HBA context object. | |
7ad20aa9 JS |
1726 | * |
1727 | * This function is responsible for driver exit processing of setting up | |
1728 | * diag loopback mode on device. | |
1729 | */ | |
1730 | static void | |
1731 | lpfc_bsg_diag_mode_exit(struct lpfc_hba *phba) | |
1732 | { | |
1733 | struct Scsi_Host *shost; | |
1734 | struct lpfc_vport **vports; | |
1735 | int i; | |
1736 | ||
1737 | vports = lpfc_create_vport_work_array(phba); | |
1738 | if (vports) { | |
1739 | for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) { | |
1740 | shost = lpfc_shost_from_vport(vports[i]); | |
1741 | scsi_unblock_requests(shost); | |
1742 | } | |
1743 | lpfc_destroy_vport_work_array(phba, vports); | |
1744 | } else { | |
1745 | shost = lpfc_shost_from_vport(phba->pport); | |
1746 | scsi_unblock_requests(shost); | |
1747 | } | |
1748 | return; | |
1749 | } | |
1750 | ||
1751 | /** | |
1752 | * lpfc_sli3_bsg_diag_loopback_mode - process an sli3 bsg vendor command | |
1753 | * @phba: Pointer to HBA context object. | |
3b5dd52a | 1754 | * @job: LPFC_BSG_VENDOR_DIAG_MODE |
f1c3b0fc | 1755 | * |
7ad20aa9 JS |
1756 | * This function is responsible for placing an sli3 port into diagnostic |
1757 | * loopback mode in order to perform a diagnostic loopback test. | |
3b5dd52a JS |
1758 | * All new scsi requests are blocked, a small delay is used to allow the |
1759 | * scsi requests to complete then the link is brought down. If the link is | |
1760 | * is placed in loopback mode then scsi requests are again allowed | |
1761 | * so the scsi mid-layer doesn't give up on the port. | |
1762 | * All of this is done in-line. | |
f1c3b0fc | 1763 | */ |
3b5dd52a | 1764 | static int |
7ad20aa9 | 1765 | lpfc_sli3_bsg_diag_loopback_mode(struct lpfc_hba *phba, struct fc_bsg_job *job) |
f1c3b0fc | 1766 | { |
3b5dd52a | 1767 | struct diag_mode_set *loopback_mode; |
3b5dd52a JS |
1768 | uint32_t link_flags; |
1769 | uint32_t timeout; | |
1b51197d | 1770 | LPFC_MBOXQ_t *pmboxq = NULL; |
b76f2dc9 | 1771 | int mbxstatus = MBX_SUCCESS; |
3b5dd52a JS |
1772 | int i = 0; |
1773 | int rc = 0; | |
f1c3b0fc | 1774 | |
3b5dd52a JS |
1775 | /* no data to return just the return code */ |
1776 | job->reply->reply_payload_rcv_len = 0; | |
1777 | ||
7ad20aa9 JS |
1778 | if (job->request_len < sizeof(struct fc_bsg_request) + |
1779 | sizeof(struct diag_mode_set)) { | |
3b5dd52a | 1780 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
7ad20aa9 JS |
1781 | "2738 Received DIAG MODE request size:%d " |
1782 | "below the minimum size:%d\n", | |
1783 | job->request_len, | |
1784 | (int)(sizeof(struct fc_bsg_request) + | |
1785 | sizeof(struct diag_mode_set))); | |
3b5dd52a JS |
1786 | rc = -EINVAL; |
1787 | goto job_error; | |
1788 | } | |
1789 | ||
88a2cfbb | 1790 | rc = lpfc_bsg_diag_mode_enter(phba); |
7ad20aa9 JS |
1791 | if (rc) |
1792 | goto job_error; | |
1793 | ||
1794 | /* bring the link to diagnostic mode */ | |
3b5dd52a JS |
1795 | loopback_mode = (struct diag_mode_set *) |
1796 | job->request->rqst_data.h_vendor.vendor_cmd; | |
1797 | link_flags = loopback_mode->type; | |
515e0aa2 | 1798 | timeout = loopback_mode->timeout * 100; |
3b5dd52a | 1799 | |
3b5dd52a JS |
1800 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
1801 | if (!pmboxq) { | |
1802 | rc = -ENOMEM; | |
7ad20aa9 | 1803 | goto loopback_mode_exit; |
3b5dd52a | 1804 | } |
3b5dd52a JS |
1805 | memset((void *)pmboxq, 0, sizeof(LPFC_MBOXQ_t)); |
1806 | pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK; | |
1807 | pmboxq->u.mb.mbxOwner = OWN_HOST; | |
1808 | ||
1809 | mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO); | |
1810 | ||
1811 | if ((mbxstatus == MBX_SUCCESS) && (pmboxq->u.mb.mbxStatus == 0)) { | |
1812 | /* wait for link down before proceeding */ | |
1813 | i = 0; | |
1814 | while (phba->link_state != LPFC_LINK_DOWN) { | |
1815 | if (i++ > timeout) { | |
1816 | rc = -ETIMEDOUT; | |
1817 | goto loopback_mode_exit; | |
1818 | } | |
3b5dd52a JS |
1819 | msleep(10); |
1820 | } | |
1821 | ||
1822 | memset((void *)pmboxq, 0, sizeof(LPFC_MBOXQ_t)); | |
1823 | if (link_flags == INTERNAL_LOOP_BACK) | |
1824 | pmboxq->u.mb.un.varInitLnk.link_flags = FLAGS_LOCAL_LB; | |
1825 | else | |
1826 | pmboxq->u.mb.un.varInitLnk.link_flags = | |
1827 | FLAGS_TOPOLOGY_MODE_LOOP; | |
1828 | ||
1829 | pmboxq->u.mb.mbxCommand = MBX_INIT_LINK; | |
1830 | pmboxq->u.mb.mbxOwner = OWN_HOST; | |
1831 | ||
1832 | mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, | |
1833 | LPFC_MBOX_TMO); | |
1834 | ||
1835 | if ((mbxstatus != MBX_SUCCESS) || (pmboxq->u.mb.mbxStatus)) | |
1836 | rc = -ENODEV; | |
1837 | else { | |
1b51197d | 1838 | spin_lock_irq(&phba->hbalock); |
3b5dd52a | 1839 | phba->link_flag |= LS_LOOPBACK_MODE; |
1b51197d | 1840 | spin_unlock_irq(&phba->hbalock); |
3b5dd52a JS |
1841 | /* wait for the link attention interrupt */ |
1842 | msleep(100); | |
1843 | ||
1844 | i = 0; | |
1845 | while (phba->link_state != LPFC_HBA_READY) { | |
1846 | if (i++ > timeout) { | |
1847 | rc = -ETIMEDOUT; | |
1848 | break; | |
1849 | } | |
1850 | ||
1851 | msleep(10); | |
1852 | } | |
1853 | } | |
1854 | ||
1855 | } else | |
1856 | rc = -ENODEV; | |
1857 | ||
1858 | loopback_mode_exit: | |
7ad20aa9 | 1859 | lpfc_bsg_diag_mode_exit(phba); |
3b5dd52a JS |
1860 | |
1861 | /* | |
1862 | * Let SLI layer release mboxq if mbox command completed after timeout. | |
1863 | */ | |
1b51197d | 1864 | if (pmboxq && mbxstatus != MBX_TIMEOUT) |
3b5dd52a JS |
1865 | mempool_free(pmboxq, phba->mbox_mem_pool); |
1866 | ||
1867 | job_error: | |
1868 | /* make error code available to userspace */ | |
1869 | job->reply->result = rc; | |
1870 | /* complete the job back to userspace if no error */ | |
1871 | if (rc == 0) | |
1872 | job->job_done(job); | |
1873 | return rc; | |
1874 | } | |
1875 | ||
1876 | /** | |
7ad20aa9 JS |
1877 | * lpfc_sli4_bsg_set_link_diag_state - set sli4 link diag state |
1878 | * @phba: Pointer to HBA context object. | |
1879 | * @diag: Flag for set link to diag or nomral operation state. | |
3b5dd52a | 1880 | * |
7ad20aa9 JS |
1881 | * This function is responsible for issuing a sli4 mailbox command for setting |
1882 | * link to either diag state or normal operation state. | |
1883 | */ | |
1884 | static int | |
1885 | lpfc_sli4_bsg_set_link_diag_state(struct lpfc_hba *phba, uint32_t diag) | |
3b5dd52a | 1886 | { |
7ad20aa9 JS |
1887 | LPFC_MBOXQ_t *pmboxq; |
1888 | struct lpfc_mbx_set_link_diag_state *link_diag_state; | |
1889 | uint32_t req_len, alloc_len; | |
1890 | int mbxstatus = MBX_SUCCESS, rc; | |
3b5dd52a | 1891 | |
7ad20aa9 JS |
1892 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
1893 | if (!pmboxq) | |
d439d286 | 1894 | return -ENOMEM; |
3b5dd52a | 1895 | |
7ad20aa9 JS |
1896 | req_len = (sizeof(struct lpfc_mbx_set_link_diag_state) - |
1897 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
1898 | alloc_len = lpfc_sli4_config(phba, pmboxq, LPFC_MBOX_SUBSYSTEM_FCOE, | |
1899 | LPFC_MBOX_OPCODE_FCOE_LINK_DIAG_STATE, | |
1900 | req_len, LPFC_SLI4_MBX_EMBED); | |
1901 | if (alloc_len != req_len) { | |
1902 | rc = -ENOMEM; | |
1903 | goto link_diag_state_set_out; | |
3b5dd52a | 1904 | } |
1b51197d JS |
1905 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
1906 | "3128 Set link to diagnostic state:x%x (x%x/x%x)\n", | |
1907 | diag, phba->sli4_hba.lnk_info.lnk_tp, | |
1908 | phba->sli4_hba.lnk_info.lnk_no); | |
1909 | ||
7ad20aa9 | 1910 | link_diag_state = &pmboxq->u.mqe.un.link_diag_state; |
9731592b JS |
1911 | bf_set(lpfc_mbx_set_diag_state_diag_bit_valid, &link_diag_state->u.req, |
1912 | LPFC_DIAG_STATE_DIAG_BIT_VALID_CHANGE); | |
7ad20aa9 | 1913 | bf_set(lpfc_mbx_set_diag_state_link_num, &link_diag_state->u.req, |
1b51197d | 1914 | phba->sli4_hba.lnk_info.lnk_no); |
7ad20aa9 | 1915 | bf_set(lpfc_mbx_set_diag_state_link_type, &link_diag_state->u.req, |
1b51197d | 1916 | phba->sli4_hba.lnk_info.lnk_tp); |
7ad20aa9 JS |
1917 | if (diag) |
1918 | bf_set(lpfc_mbx_set_diag_state_diag, | |
1919 | &link_diag_state->u.req, 1); | |
1920 | else | |
1921 | bf_set(lpfc_mbx_set_diag_state_diag, | |
1922 | &link_diag_state->u.req, 0); | |
3b5dd52a | 1923 | |
7ad20aa9 | 1924 | mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO); |
3b5dd52a | 1925 | |
7ad20aa9 JS |
1926 | if ((mbxstatus == MBX_SUCCESS) && (pmboxq->u.mb.mbxStatus == 0)) |
1927 | rc = 0; | |
1928 | else | |
1929 | rc = -ENODEV; | |
3b5dd52a | 1930 | |
7ad20aa9 JS |
1931 | link_diag_state_set_out: |
1932 | if (pmboxq && (mbxstatus != MBX_TIMEOUT)) | |
1933 | mempool_free(pmboxq, phba->mbox_mem_pool); | |
3b5dd52a | 1934 | |
7ad20aa9 | 1935 | return rc; |
3b5dd52a JS |
1936 | } |
1937 | ||
1b51197d JS |
1938 | /** |
1939 | * lpfc_sli4_bsg_set_internal_loopback - set sli4 internal loopback diagnostic | |
1940 | * @phba: Pointer to HBA context object. | |
1941 | * | |
1942 | * This function is responsible for issuing a sli4 mailbox command for setting | |
1943 | * up internal loopback diagnostic. | |
1944 | */ | |
1945 | static int | |
1946 | lpfc_sli4_bsg_set_internal_loopback(struct lpfc_hba *phba) | |
1947 | { | |
1948 | LPFC_MBOXQ_t *pmboxq; | |
1949 | uint32_t req_len, alloc_len; | |
1950 | struct lpfc_mbx_set_link_diag_loopback *link_diag_loopback; | |
1951 | int mbxstatus = MBX_SUCCESS, rc = 0; | |
1952 | ||
1953 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
1954 | if (!pmboxq) | |
1955 | return -ENOMEM; | |
1956 | req_len = (sizeof(struct lpfc_mbx_set_link_diag_loopback) - | |
1957 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
1958 | alloc_len = lpfc_sli4_config(phba, pmboxq, LPFC_MBOX_SUBSYSTEM_FCOE, | |
1959 | LPFC_MBOX_OPCODE_FCOE_LINK_DIAG_LOOPBACK, | |
1960 | req_len, LPFC_SLI4_MBX_EMBED); | |
1961 | if (alloc_len != req_len) { | |
1962 | mempool_free(pmboxq, phba->mbox_mem_pool); | |
1963 | return -ENOMEM; | |
1964 | } | |
1965 | link_diag_loopback = &pmboxq->u.mqe.un.link_diag_loopback; | |
1966 | bf_set(lpfc_mbx_set_diag_state_link_num, | |
1967 | &link_diag_loopback->u.req, phba->sli4_hba.lnk_info.lnk_no); | |
1968 | bf_set(lpfc_mbx_set_diag_state_link_type, | |
1969 | &link_diag_loopback->u.req, phba->sli4_hba.lnk_info.lnk_tp); | |
1970 | bf_set(lpfc_mbx_set_diag_lpbk_type, &link_diag_loopback->u.req, | |
3ef6d24c | 1971 | LPFC_DIAG_LOOPBACK_TYPE_INTERNAL); |
1b51197d JS |
1972 | |
1973 | mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO); | |
1974 | if ((mbxstatus != MBX_SUCCESS) || (pmboxq->u.mb.mbxStatus)) { | |
1975 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1976 | "3127 Failed setup loopback mode mailbox " | |
1977 | "command, rc:x%x, status:x%x\n", mbxstatus, | |
1978 | pmboxq->u.mb.mbxStatus); | |
1979 | rc = -ENODEV; | |
1980 | } | |
1981 | if (pmboxq && (mbxstatus != MBX_TIMEOUT)) | |
1982 | mempool_free(pmboxq, phba->mbox_mem_pool); | |
1983 | return rc; | |
1984 | } | |
1985 | ||
1986 | /** | |
1987 | * lpfc_sli4_diag_fcport_reg_setup - setup port registrations for diagnostic | |
1988 | * @phba: Pointer to HBA context object. | |
1989 | * | |
1990 | * This function set up SLI4 FC port registrations for diagnostic run, which | |
1991 | * includes all the rpis, vfi, and also vpi. | |
1992 | */ | |
1993 | static int | |
1994 | lpfc_sli4_diag_fcport_reg_setup(struct lpfc_hba *phba) | |
1995 | { | |
1996 | int rc; | |
1997 | ||
1998 | if (phba->pport->fc_flag & FC_VFI_REGISTERED) { | |
1999 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
2000 | "3136 Port still had vfi registered: " | |
2001 | "mydid:x%x, fcfi:%d, vfi:%d, vpi:%d\n", | |
2002 | phba->pport->fc_myDID, phba->fcf.fcfi, | |
2003 | phba->sli4_hba.vfi_ids[phba->pport->vfi], | |
2004 | phba->vpi_ids[phba->pport->vpi]); | |
2005 | return -EINVAL; | |
2006 | } | |
2007 | rc = lpfc_issue_reg_vfi(phba->pport); | |
2008 | return rc; | |
2009 | } | |
2010 | ||
3b5dd52a | 2011 | /** |
7ad20aa9 JS |
2012 | * lpfc_sli4_bsg_diag_loopback_mode - process an sli4 bsg vendor command |
2013 | * @phba: Pointer to HBA context object. | |
2014 | * @job: LPFC_BSG_VENDOR_DIAG_MODE | |
3b5dd52a | 2015 | * |
7ad20aa9 JS |
2016 | * This function is responsible for placing an sli4 port into diagnostic |
2017 | * loopback mode in order to perform a diagnostic loopback test. | |
2018 | */ | |
2019 | static int | |
2020 | lpfc_sli4_bsg_diag_loopback_mode(struct lpfc_hba *phba, struct fc_bsg_job *job) | |
3b5dd52a | 2021 | { |
7ad20aa9 | 2022 | struct diag_mode_set *loopback_mode; |
1b51197d JS |
2023 | uint32_t link_flags, timeout; |
2024 | int i, rc = 0; | |
3b5dd52a | 2025 | |
7ad20aa9 JS |
2026 | /* no data to return just the return code */ |
2027 | job->reply->reply_payload_rcv_len = 0; | |
3b5dd52a | 2028 | |
7ad20aa9 JS |
2029 | if (job->request_len < sizeof(struct fc_bsg_request) + |
2030 | sizeof(struct diag_mode_set)) { | |
2031 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
2032 | "3011 Received DIAG MODE request size:%d " | |
2033 | "below the minimum size:%d\n", | |
2034 | job->request_len, | |
2035 | (int)(sizeof(struct fc_bsg_request) + | |
2036 | sizeof(struct diag_mode_set))); | |
2037 | rc = -EINVAL; | |
2038 | goto job_error; | |
2039 | } | |
3b5dd52a | 2040 | |
88a2cfbb | 2041 | rc = lpfc_bsg_diag_mode_enter(phba); |
7ad20aa9 JS |
2042 | if (rc) |
2043 | goto job_error; | |
2044 | ||
1b51197d JS |
2045 | /* indicate we are in loobpack diagnostic mode */ |
2046 | spin_lock_irq(&phba->hbalock); | |
2047 | phba->link_flag |= LS_LOOPBACK_MODE; | |
2048 | spin_unlock_irq(&phba->hbalock); | |
2049 | ||
2050 | /* reset port to start frome scratch */ | |
2051 | rc = lpfc_selective_reset(phba); | |
2052 | if (rc) | |
2053 | goto job_error; | |
2054 | ||
7ad20aa9 | 2055 | /* bring the link to diagnostic mode */ |
1b51197d JS |
2056 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
2057 | "3129 Bring link to diagnostic state.\n"); | |
7ad20aa9 JS |
2058 | loopback_mode = (struct diag_mode_set *) |
2059 | job->request->rqst_data.h_vendor.vendor_cmd; | |
2060 | link_flags = loopback_mode->type; | |
2061 | timeout = loopback_mode->timeout * 100; | |
2062 | ||
2063 | rc = lpfc_sli4_bsg_set_link_diag_state(phba, 1); | |
1b51197d JS |
2064 | if (rc) { |
2065 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
2066 | "3130 Failed to bring link to diagnostic " | |
2067 | "state, rc:x%x\n", rc); | |
7ad20aa9 | 2068 | goto loopback_mode_exit; |
1b51197d | 2069 | } |
7ad20aa9 JS |
2070 | |
2071 | /* wait for link down before proceeding */ | |
2072 | i = 0; | |
2073 | while (phba->link_state != LPFC_LINK_DOWN) { | |
2074 | if (i++ > timeout) { | |
2075 | rc = -ETIMEDOUT; | |
1b51197d JS |
2076 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
2077 | "3131 Timeout waiting for link to " | |
2078 | "diagnostic mode, timeout:%d ms\n", | |
2079 | timeout * 10); | |
7ad20aa9 JS |
2080 | goto loopback_mode_exit; |
2081 | } | |
2082 | msleep(10); | |
3b5dd52a | 2083 | } |
1b51197d | 2084 | |
7ad20aa9 | 2085 | /* set up loopback mode */ |
1b51197d JS |
2086 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
2087 | "3132 Set up loopback mode:x%x\n", link_flags); | |
2088 | ||
2089 | if (link_flags == INTERNAL_LOOP_BACK) | |
2090 | rc = lpfc_sli4_bsg_set_internal_loopback(phba); | |
2091 | else if (link_flags == EXTERNAL_LOOP_BACK) | |
2092 | rc = lpfc_hba_init_link_fc_topology(phba, | |
2093 | FLAGS_TOPOLOGY_MODE_PT_PT, | |
2094 | MBX_NOWAIT); | |
2095 | else { | |
2096 | rc = -EINVAL; | |
2097 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, | |
2098 | "3141 Loopback mode:x%x not supported\n", | |
2099 | link_flags); | |
7ad20aa9 JS |
2100 | goto loopback_mode_exit; |
2101 | } | |
7ad20aa9 | 2102 | |
1b51197d | 2103 | if (!rc) { |
7ad20aa9 JS |
2104 | /* wait for the link attention interrupt */ |
2105 | msleep(100); | |
2106 | i = 0; | |
1b51197d JS |
2107 | while (phba->link_state < LPFC_LINK_UP) { |
2108 | if (i++ > timeout) { | |
2109 | rc = -ETIMEDOUT; | |
2110 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
2111 | "3137 Timeout waiting for link up " | |
2112 | "in loopback mode, timeout:%d ms\n", | |
2113 | timeout * 10); | |
2114 | break; | |
2115 | } | |
2116 | msleep(10); | |
2117 | } | |
2118 | } | |
2119 | ||
2120 | /* port resource registration setup for loopback diagnostic */ | |
2121 | if (!rc) { | |
2122 | /* set up a none zero myDID for loopback test */ | |
2123 | phba->pport->fc_myDID = 1; | |
2124 | rc = lpfc_sli4_diag_fcport_reg_setup(phba); | |
2125 | } else | |
2126 | goto loopback_mode_exit; | |
2127 | ||
2128 | if (!rc) { | |
2129 | /* wait for the port ready */ | |
2130 | msleep(100); | |
2131 | i = 0; | |
7ad20aa9 JS |
2132 | while (phba->link_state != LPFC_HBA_READY) { |
2133 | if (i++ > timeout) { | |
2134 | rc = -ETIMEDOUT; | |
1b51197d JS |
2135 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
2136 | "3133 Timeout waiting for port " | |
2137 | "loopback mode ready, timeout:%d ms\n", | |
2138 | timeout * 10); | |
7ad20aa9 JS |
2139 | break; |
2140 | } | |
2141 | msleep(10); | |
2142 | } | |
2143 | } | |
2144 | ||
2145 | loopback_mode_exit: | |
1b51197d JS |
2146 | /* clear loopback diagnostic mode */ |
2147 | if (rc) { | |
2148 | spin_lock_irq(&phba->hbalock); | |
2149 | phba->link_flag &= ~LS_LOOPBACK_MODE; | |
2150 | spin_unlock_irq(&phba->hbalock); | |
2151 | } | |
7ad20aa9 JS |
2152 | lpfc_bsg_diag_mode_exit(phba); |
2153 | ||
7ad20aa9 JS |
2154 | job_error: |
2155 | /* make error code available to userspace */ | |
2156 | job->reply->result = rc; | |
2157 | /* complete the job back to userspace if no error */ | |
2158 | if (rc == 0) | |
2159 | job->job_done(job); | |
2160 | return rc; | |
3b5dd52a JS |
2161 | } |
2162 | ||
2163 | /** | |
7ad20aa9 JS |
2164 | * lpfc_bsg_diag_loopback_mode - bsg vendor command for diag loopback mode |
2165 | * @job: LPFC_BSG_VENDOR_DIAG_MODE | |
3b5dd52a | 2166 | * |
7ad20aa9 JS |
2167 | * This function is responsible for responding to check and dispatch bsg diag |
2168 | * command from the user to proper driver action routines. | |
2169 | */ | |
2170 | static int | |
2171 | lpfc_bsg_diag_loopback_mode(struct fc_bsg_job *job) | |
2172 | { | |
2173 | struct Scsi_Host *shost; | |
2174 | struct lpfc_vport *vport; | |
2175 | struct lpfc_hba *phba; | |
2176 | int rc; | |
2177 | ||
2178 | shost = job->shost; | |
2179 | if (!shost) | |
2180 | return -ENODEV; | |
2181 | vport = (struct lpfc_vport *)job->shost->hostdata; | |
2182 | if (!vport) | |
2183 | return -ENODEV; | |
2184 | phba = vport->phba; | |
2185 | if (!phba) | |
2186 | return -ENODEV; | |
2187 | ||
2188 | if (phba->sli_rev < LPFC_SLI_REV4) | |
2189 | rc = lpfc_sli3_bsg_diag_loopback_mode(phba, job); | |
2190 | else if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == | |
2191 | LPFC_SLI_INTF_IF_TYPE_2) | |
2192 | rc = lpfc_sli4_bsg_diag_loopback_mode(phba, job); | |
2193 | else | |
2194 | rc = -ENODEV; | |
2195 | ||
2196 | return rc; | |
7ad20aa9 JS |
2197 | } |
2198 | ||
2199 | /** | |
2200 | * lpfc_sli4_bsg_diag_mode_end - sli4 bsg vendor command for ending diag mode | |
2201 | * @job: LPFC_BSG_VENDOR_DIAG_MODE_END | |
2202 | * | |
2203 | * This function is responsible for responding to check and dispatch bsg diag | |
2204 | * command from the user to proper driver action routines. | |
2205 | */ | |
2206 | static int | |
2207 | lpfc_sli4_bsg_diag_mode_end(struct fc_bsg_job *job) | |
2208 | { | |
2209 | struct Scsi_Host *shost; | |
2210 | struct lpfc_vport *vport; | |
2211 | struct lpfc_hba *phba; | |
1b51197d JS |
2212 | struct diag_mode_set *loopback_mode_end_cmd; |
2213 | uint32_t timeout; | |
2214 | int rc, i; | |
7ad20aa9 JS |
2215 | |
2216 | shost = job->shost; | |
2217 | if (!shost) | |
2218 | return -ENODEV; | |
2219 | vport = (struct lpfc_vport *)job->shost->hostdata; | |
2220 | if (!vport) | |
2221 | return -ENODEV; | |
2222 | phba = vport->phba; | |
2223 | if (!phba) | |
2224 | return -ENODEV; | |
2225 | ||
2226 | if (phba->sli_rev < LPFC_SLI_REV4) | |
2227 | return -ENODEV; | |
2228 | if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != | |
2229 | LPFC_SLI_INTF_IF_TYPE_2) | |
2230 | return -ENODEV; | |
2231 | ||
1b51197d JS |
2232 | /* clear loopback diagnostic mode */ |
2233 | spin_lock_irq(&phba->hbalock); | |
2234 | phba->link_flag &= ~LS_LOOPBACK_MODE; | |
2235 | spin_unlock_irq(&phba->hbalock); | |
2236 | loopback_mode_end_cmd = (struct diag_mode_set *) | |
2237 | job->request->rqst_data.h_vendor.vendor_cmd; | |
2238 | timeout = loopback_mode_end_cmd->timeout * 100; | |
2239 | ||
7ad20aa9 | 2240 | rc = lpfc_sli4_bsg_set_link_diag_state(phba, 0); |
1b51197d JS |
2241 | if (rc) { |
2242 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
2243 | "3139 Failed to bring link to diagnostic " | |
2244 | "state, rc:x%x\n", rc); | |
2245 | goto loopback_mode_end_exit; | |
2246 | } | |
7ad20aa9 | 2247 | |
1b51197d JS |
2248 | /* wait for link down before proceeding */ |
2249 | i = 0; | |
2250 | while (phba->link_state != LPFC_LINK_DOWN) { | |
2251 | if (i++ > timeout) { | |
1b51197d JS |
2252 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
2253 | "3140 Timeout waiting for link to " | |
2254 | "diagnostic mode_end, timeout:%d ms\n", | |
2255 | timeout * 10); | |
2256 | /* there is nothing much we can do here */ | |
2257 | break; | |
2258 | } | |
2259 | msleep(10); | |
2260 | } | |
7ad20aa9 | 2261 | |
1b51197d JS |
2262 | /* reset port resource registrations */ |
2263 | rc = lpfc_selective_reset(phba); | |
2264 | phba->pport->fc_myDID = 0; | |
2265 | ||
2266 | loopback_mode_end_exit: | |
2267 | /* make return code available to userspace */ | |
2268 | job->reply->result = rc; | |
2269 | /* complete the job back to userspace if no error */ | |
2270 | if (rc == 0) | |
2271 | job->job_done(job); | |
7ad20aa9 JS |
2272 | return rc; |
2273 | } | |
2274 | ||
2275 | /** | |
2276 | * lpfc_sli4_bsg_link_diag_test - sli4 bsg vendor command for diag link test | |
2277 | * @job: LPFC_BSG_VENDOR_DIAG_LINK_TEST | |
2278 | * | |
2279 | * This function is to perform SLI4 diag link test request from the user | |
2280 | * applicaiton. | |
2281 | */ | |
2282 | static int | |
2283 | lpfc_sli4_bsg_link_diag_test(struct fc_bsg_job *job) | |
2284 | { | |
2285 | struct Scsi_Host *shost; | |
2286 | struct lpfc_vport *vport; | |
2287 | struct lpfc_hba *phba; | |
2288 | LPFC_MBOXQ_t *pmboxq; | |
2289 | struct sli4_link_diag *link_diag_test_cmd; | |
2290 | uint32_t req_len, alloc_len; | |
7ad20aa9 JS |
2291 | struct lpfc_mbx_run_link_diag_test *run_link_diag_test; |
2292 | union lpfc_sli4_cfg_shdr *shdr; | |
2293 | uint32_t shdr_status, shdr_add_status; | |
2294 | struct diag_status *diag_status_reply; | |
2295 | int mbxstatus, rc = 0; | |
2296 | ||
2297 | shost = job->shost; | |
2298 | if (!shost) { | |
2299 | rc = -ENODEV; | |
2300 | goto job_error; | |
2301 | } | |
2302 | vport = (struct lpfc_vport *)job->shost->hostdata; | |
2303 | if (!vport) { | |
2304 | rc = -ENODEV; | |
2305 | goto job_error; | |
2306 | } | |
2307 | phba = vport->phba; | |
2308 | if (!phba) { | |
2309 | rc = -ENODEV; | |
2310 | goto job_error; | |
2311 | } | |
2312 | ||
2313 | if (phba->sli_rev < LPFC_SLI_REV4) { | |
2314 | rc = -ENODEV; | |
2315 | goto job_error; | |
2316 | } | |
2317 | if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != | |
2318 | LPFC_SLI_INTF_IF_TYPE_2) { | |
2319 | rc = -ENODEV; | |
2320 | goto job_error; | |
2321 | } | |
2322 | ||
2323 | if (job->request_len < sizeof(struct fc_bsg_request) + | |
2324 | sizeof(struct sli4_link_diag)) { | |
2325 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
2326 | "3013 Received LINK DIAG TEST request " | |
2327 | " size:%d below the minimum size:%d\n", | |
2328 | job->request_len, | |
2329 | (int)(sizeof(struct fc_bsg_request) + | |
2330 | sizeof(struct sli4_link_diag))); | |
2331 | rc = -EINVAL; | |
2332 | goto job_error; | |
2333 | } | |
2334 | ||
88a2cfbb | 2335 | rc = lpfc_bsg_diag_mode_enter(phba); |
7ad20aa9 JS |
2336 | if (rc) |
2337 | goto job_error; | |
2338 | ||
2339 | link_diag_test_cmd = (struct sli4_link_diag *) | |
2340 | job->request->rqst_data.h_vendor.vendor_cmd; | |
7ad20aa9 JS |
2341 | |
2342 | rc = lpfc_sli4_bsg_set_link_diag_state(phba, 1); | |
2343 | ||
2344 | if (rc) | |
2345 | goto job_error; | |
2346 | ||
2347 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
2348 | if (!pmboxq) { | |
2349 | rc = -ENOMEM; | |
2350 | goto link_diag_test_exit; | |
2351 | } | |
2352 | ||
2353 | req_len = (sizeof(struct lpfc_mbx_set_link_diag_state) - | |
2354 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
2355 | alloc_len = lpfc_sli4_config(phba, pmboxq, LPFC_MBOX_SUBSYSTEM_FCOE, | |
2356 | LPFC_MBOX_OPCODE_FCOE_LINK_DIAG_STATE, | |
2357 | req_len, LPFC_SLI4_MBX_EMBED); | |
2358 | if (alloc_len != req_len) { | |
2359 | rc = -ENOMEM; | |
2360 | goto link_diag_test_exit; | |
2361 | } | |
2362 | run_link_diag_test = &pmboxq->u.mqe.un.link_diag_test; | |
2363 | bf_set(lpfc_mbx_run_diag_test_link_num, &run_link_diag_test->u.req, | |
1b51197d | 2364 | phba->sli4_hba.lnk_info.lnk_no); |
7ad20aa9 | 2365 | bf_set(lpfc_mbx_run_diag_test_link_type, &run_link_diag_test->u.req, |
1b51197d | 2366 | phba->sli4_hba.lnk_info.lnk_tp); |
7ad20aa9 JS |
2367 | bf_set(lpfc_mbx_run_diag_test_test_id, &run_link_diag_test->u.req, |
2368 | link_diag_test_cmd->test_id); | |
2369 | bf_set(lpfc_mbx_run_diag_test_loops, &run_link_diag_test->u.req, | |
2370 | link_diag_test_cmd->loops); | |
2371 | bf_set(lpfc_mbx_run_diag_test_test_ver, &run_link_diag_test->u.req, | |
2372 | link_diag_test_cmd->test_version); | |
2373 | bf_set(lpfc_mbx_run_diag_test_err_act, &run_link_diag_test->u.req, | |
2374 | link_diag_test_cmd->error_action); | |
2375 | ||
2376 | mbxstatus = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); | |
2377 | ||
2378 | shdr = (union lpfc_sli4_cfg_shdr *) | |
2379 | &pmboxq->u.mqe.un.sli4_config.header.cfg_shdr; | |
2380 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
2381 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
2382 | if (shdr_status || shdr_add_status || mbxstatus) { | |
2383 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, | |
2384 | "3010 Run link diag test mailbox failed with " | |
2385 | "mbx_status x%x status x%x, add_status x%x\n", | |
2386 | mbxstatus, shdr_status, shdr_add_status); | |
2387 | } | |
2388 | ||
2389 | diag_status_reply = (struct diag_status *) | |
2390 | job->reply->reply_data.vendor_reply.vendor_rsp; | |
2391 | ||
2392 | if (job->reply_len < | |
2393 | sizeof(struct fc_bsg_request) + sizeof(struct diag_status)) { | |
2394 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
2395 | "3012 Received Run link diag test reply " | |
2396 | "below minimum size (%d): reply_len:%d\n", | |
2397 | (int)(sizeof(struct fc_bsg_request) + | |
2398 | sizeof(struct diag_status)), | |
2399 | job->reply_len); | |
2400 | rc = -EINVAL; | |
2401 | goto job_error; | |
2402 | } | |
2403 | ||
2404 | diag_status_reply->mbox_status = mbxstatus; | |
2405 | diag_status_reply->shdr_status = shdr_status; | |
2406 | diag_status_reply->shdr_add_status = shdr_add_status; | |
2407 | ||
2408 | link_diag_test_exit: | |
2409 | rc = lpfc_sli4_bsg_set_link_diag_state(phba, 0); | |
2410 | ||
2411 | if (pmboxq) | |
2412 | mempool_free(pmboxq, phba->mbox_mem_pool); | |
2413 | ||
2414 | lpfc_bsg_diag_mode_exit(phba); | |
2415 | ||
2416 | job_error: | |
2417 | /* make error code available to userspace */ | |
2418 | job->reply->result = rc; | |
2419 | /* complete the job back to userspace if no error */ | |
2420 | if (rc == 0) | |
2421 | job->job_done(job); | |
2422 | return rc; | |
2423 | } | |
2424 | ||
2425 | /** | |
2426 | * lpfcdiag_loop_self_reg - obtains a remote port login id | |
2427 | * @phba: Pointer to HBA context object | |
2428 | * @rpi: Pointer to a remote port login id | |
2429 | * | |
2430 | * This function obtains a remote port login id so the diag loopback test | |
2431 | * can send and receive its own unsolicited CT command. | |
2432 | **/ | |
2433 | static int lpfcdiag_loop_self_reg(struct lpfc_hba *phba, uint16_t *rpi) | |
2434 | { | |
2435 | LPFC_MBOXQ_t *mbox; | |
2436 | struct lpfc_dmabuf *dmabuff; | |
2437 | int status; | |
2438 | ||
2439 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
2440 | if (!mbox) | |
2441 | return -ENOMEM; | |
2442 | ||
1b51197d JS |
2443 | if (phba->sli_rev < LPFC_SLI_REV4) |
2444 | status = lpfc_reg_rpi(phba, 0, phba->pport->fc_myDID, | |
2445 | (uint8_t *)&phba->pport->fc_sparam, | |
2446 | mbox, *rpi); | |
2447 | else { | |
7ad20aa9 | 2448 | *rpi = lpfc_sli4_alloc_rpi(phba); |
1b51197d JS |
2449 | status = lpfc_reg_rpi(phba, phba->pport->vpi, |
2450 | phba->pport->fc_myDID, | |
2451 | (uint8_t *)&phba->pport->fc_sparam, | |
2452 | mbox, *rpi); | |
2453 | } | |
2454 | ||
7ad20aa9 JS |
2455 | if (status) { |
2456 | mempool_free(mbox, phba->mbox_mem_pool); | |
2457 | if (phba->sli_rev == LPFC_SLI_REV4) | |
2458 | lpfc_sli4_free_rpi(phba, *rpi); | |
2459 | return -ENOMEM; | |
2460 | } | |
2461 | ||
2462 | dmabuff = (struct lpfc_dmabuf *) mbox->context1; | |
2463 | mbox->context1 = NULL; | |
2464 | mbox->context2 = NULL; | |
2465 | status = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); | |
2466 | ||
2467 | if ((status != MBX_SUCCESS) || (mbox->u.mb.mbxStatus)) { | |
2468 | lpfc_mbuf_free(phba, dmabuff->virt, dmabuff->phys); | |
2469 | kfree(dmabuff); | |
2470 | if (status != MBX_TIMEOUT) | |
2471 | mempool_free(mbox, phba->mbox_mem_pool); | |
2472 | if (phba->sli_rev == LPFC_SLI_REV4) | |
2473 | lpfc_sli4_free_rpi(phba, *rpi); | |
2474 | return -ENODEV; | |
2475 | } | |
2476 | ||
1b51197d JS |
2477 | if (phba->sli_rev < LPFC_SLI_REV4) |
2478 | *rpi = mbox->u.mb.un.varWords[0]; | |
7ad20aa9 JS |
2479 | |
2480 | lpfc_mbuf_free(phba, dmabuff->virt, dmabuff->phys); | |
2481 | kfree(dmabuff); | |
2482 | mempool_free(mbox, phba->mbox_mem_pool); | |
2483 | return 0; | |
2484 | } | |
2485 | ||
2486 | /** | |
2487 | * lpfcdiag_loop_self_unreg - unregs from the rpi | |
2488 | * @phba: Pointer to HBA context object | |
2489 | * @rpi: Remote port login id | |
2490 | * | |
2491 | * This function unregisters the rpi obtained in lpfcdiag_loop_self_reg | |
2492 | **/ | |
2493 | static int lpfcdiag_loop_self_unreg(struct lpfc_hba *phba, uint16_t rpi) | |
2494 | { | |
2495 | LPFC_MBOXQ_t *mbox; | |
2496 | int status; | |
2497 | ||
2498 | /* Allocate mboxq structure */ | |
2499 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
2500 | if (mbox == NULL) | |
2501 | return -ENOMEM; | |
2502 | ||
1b51197d JS |
2503 | if (phba->sli_rev < LPFC_SLI_REV4) |
2504 | lpfc_unreg_login(phba, 0, rpi, mbox); | |
2505 | else | |
2506 | lpfc_unreg_login(phba, phba->pport->vpi, | |
2507 | phba->sli4_hba.rpi_ids[rpi], mbox); | |
2508 | ||
7ad20aa9 JS |
2509 | status = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); |
2510 | ||
2511 | if ((status != MBX_SUCCESS) || (mbox->u.mb.mbxStatus)) { | |
2512 | if (status != MBX_TIMEOUT) | |
2513 | mempool_free(mbox, phba->mbox_mem_pool); | |
2514 | return -EIO; | |
2515 | } | |
2516 | mempool_free(mbox, phba->mbox_mem_pool); | |
2517 | if (phba->sli_rev == LPFC_SLI_REV4) | |
2518 | lpfc_sli4_free_rpi(phba, rpi); | |
2519 | return 0; | |
2520 | } | |
2521 | ||
2522 | /** | |
2523 | * lpfcdiag_loop_get_xri - obtains the transmit and receive ids | |
2524 | * @phba: Pointer to HBA context object | |
2525 | * @rpi: Remote port login id | |
2526 | * @txxri: Pointer to transmit exchange id | |
2527 | * @rxxri: Pointer to response exchabge id | |
2528 | * | |
2529 | * This function obtains the transmit and receive ids required to send | |
2530 | * an unsolicited ct command with a payload. A special lpfc FsType and CmdRsp | |
2531 | * flags are used to the unsolicted response handler is able to process | |
2532 | * the ct command sent on the same port. | |
2533 | **/ | |
2534 | static int lpfcdiag_loop_get_xri(struct lpfc_hba *phba, uint16_t rpi, | |
2535 | uint16_t *txxri, uint16_t * rxxri) | |
3b5dd52a JS |
2536 | { |
2537 | struct lpfc_bsg_event *evt; | |
2538 | struct lpfc_iocbq *cmdiocbq, *rspiocbq; | |
2539 | IOCB_t *cmd, *rsp; | |
2540 | struct lpfc_dmabuf *dmabuf; | |
2541 | struct ulp_bde64 *bpl = NULL; | |
2542 | struct lpfc_sli_ct_request *ctreq = NULL; | |
2543 | int ret_val = 0; | |
d439d286 | 2544 | int time_left; |
5a0916b4 | 2545 | int iocb_stat = IOCB_SUCCESS; |
3b5dd52a JS |
2546 | unsigned long flags; |
2547 | ||
2548 | *txxri = 0; | |
2549 | *rxxri = 0; | |
2550 | evt = lpfc_bsg_event_new(FC_REG_CT_EVENT, current->pid, | |
2551 | SLI_CT_ELX_LOOPBACK); | |
2552 | if (!evt) | |
d439d286 | 2553 | return -ENOMEM; |
3b5dd52a JS |
2554 | |
2555 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
2556 | list_add(&evt->node, &phba->ct_ev_waiters); | |
2557 | lpfc_bsg_event_ref(evt); | |
2558 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
2559 | ||
2560 | cmdiocbq = lpfc_sli_get_iocbq(phba); | |
2561 | rspiocbq = lpfc_sli_get_iocbq(phba); | |
2562 | ||
2563 | dmabuf = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
2564 | if (dmabuf) { | |
2565 | dmabuf->virt = lpfc_mbuf_alloc(phba, 0, &dmabuf->phys); | |
c7495937 JS |
2566 | if (dmabuf->virt) { |
2567 | INIT_LIST_HEAD(&dmabuf->list); | |
2568 | bpl = (struct ulp_bde64 *) dmabuf->virt; | |
2569 | memset(bpl, 0, sizeof(*bpl)); | |
2570 | ctreq = (struct lpfc_sli_ct_request *)(bpl + 1); | |
2571 | bpl->addrHigh = | |
2572 | le32_to_cpu(putPaddrHigh(dmabuf->phys + | |
2573 | sizeof(*bpl))); | |
2574 | bpl->addrLow = | |
2575 | le32_to_cpu(putPaddrLow(dmabuf->phys + | |
2576 | sizeof(*bpl))); | |
2577 | bpl->tus.f.bdeFlags = 0; | |
2578 | bpl->tus.f.bdeSize = ELX_LOOPBACK_HEADER_SZ; | |
2579 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
2580 | } | |
3b5dd52a JS |
2581 | } |
2582 | ||
2583 | if (cmdiocbq == NULL || rspiocbq == NULL || | |
c7495937 JS |
2584 | dmabuf == NULL || bpl == NULL || ctreq == NULL || |
2585 | dmabuf->virt == NULL) { | |
d439d286 | 2586 | ret_val = -ENOMEM; |
3b5dd52a JS |
2587 | goto err_get_xri_exit; |
2588 | } | |
2589 | ||
2590 | cmd = &cmdiocbq->iocb; | |
2591 | rsp = &rspiocbq->iocb; | |
2592 | ||
2593 | memset(ctreq, 0, ELX_LOOPBACK_HEADER_SZ); | |
2594 | ||
2595 | ctreq->RevisionId.bits.Revision = SLI_CT_REVISION; | |
2596 | ctreq->RevisionId.bits.InId = 0; | |
2597 | ctreq->FsType = SLI_CT_ELX_LOOPBACK; | |
2598 | ctreq->FsSubType = 0; | |
2599 | ctreq->CommandResponse.bits.CmdRsp = ELX_LOOPBACK_XRI_SETUP; | |
2600 | ctreq->CommandResponse.bits.Size = 0; | |
2601 | ||
2602 | ||
2603 | cmd->un.xseq64.bdl.addrHigh = putPaddrHigh(dmabuf->phys); | |
2604 | cmd->un.xseq64.bdl.addrLow = putPaddrLow(dmabuf->phys); | |
2605 | cmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; | |
2606 | cmd->un.xseq64.bdl.bdeSize = sizeof(*bpl); | |
2607 | ||
2608 | cmd->un.xseq64.w5.hcsw.Fctl = LA; | |
2609 | cmd->un.xseq64.w5.hcsw.Dfctl = 0; | |
2610 | cmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL; | |
2611 | cmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT; | |
2612 | ||
2613 | cmd->ulpCommand = CMD_XMIT_SEQUENCE64_CR; | |
2614 | cmd->ulpBdeCount = 1; | |
2615 | cmd->ulpLe = 1; | |
2616 | cmd->ulpClass = CLASS3; | |
2617 | cmd->ulpContext = rpi; | |
2618 | ||
2619 | cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC; | |
2620 | cmdiocbq->vport = phba->pport; | |
5a0916b4 | 2621 | cmdiocbq->iocb_cmpl = NULL; |
3b5dd52a | 2622 | |
d439d286 | 2623 | iocb_stat = lpfc_sli_issue_iocb_wait(phba, LPFC_ELS_RING, cmdiocbq, |
3b5dd52a JS |
2624 | rspiocbq, |
2625 | (phba->fc_ratov * 2) | |
2626 | + LPFC_DRVR_TIMEOUT); | |
53151bbb | 2627 | if ((iocb_stat != IOCB_SUCCESS) || (rsp->ulpStatus != IOSTAT_SUCCESS)) { |
d439d286 | 2628 | ret_val = -EIO; |
3b5dd52a | 2629 | goto err_get_xri_exit; |
d439d286 | 2630 | } |
3b5dd52a JS |
2631 | *txxri = rsp->ulpContext; |
2632 | ||
2633 | evt->waiting = 1; | |
2634 | evt->wait_time_stamp = jiffies; | |
d439d286 | 2635 | time_left = wait_event_interruptible_timeout( |
3b5dd52a | 2636 | evt->wq, !list_empty(&evt->events_to_see), |
256ec0d0 JS |
2637 | msecs_to_jiffies(1000 * |
2638 | ((phba->fc_ratov * 2) + LPFC_DRVR_TIMEOUT))); | |
3b5dd52a | 2639 | if (list_empty(&evt->events_to_see)) |
d439d286 | 2640 | ret_val = (time_left) ? -EINTR : -ETIMEDOUT; |
3b5dd52a | 2641 | else { |
3b5dd52a JS |
2642 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
2643 | list_move(evt->events_to_see.prev, &evt->events_to_get); | |
2644 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
2645 | *rxxri = (list_entry(evt->events_to_get.prev, | |
2646 | typeof(struct event_data), | |
2647 | node))->immed_dat; | |
2648 | } | |
2649 | evt->waiting = 0; | |
2650 | ||
2651 | err_get_xri_exit: | |
2652 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
2653 | lpfc_bsg_event_unref(evt); /* release ref */ | |
2654 | lpfc_bsg_event_unref(evt); /* delete */ | |
2655 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
2656 | ||
2657 | if (dmabuf) { | |
2658 | if (dmabuf->virt) | |
2659 | lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys); | |
2660 | kfree(dmabuf); | |
2661 | } | |
2662 | ||
d439d286 | 2663 | if (cmdiocbq && (iocb_stat != IOCB_TIMEDOUT)) |
3b5dd52a JS |
2664 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
2665 | if (rspiocbq) | |
2666 | lpfc_sli_release_iocbq(phba, rspiocbq); | |
2667 | return ret_val; | |
2668 | } | |
2669 | ||
7ad20aa9 JS |
2670 | /** |
2671 | * lpfc_bsg_dma_page_alloc - allocate a bsg mbox page sized dma buffers | |
2672 | * @phba: Pointer to HBA context object | |
2673 | * | |
2674 | * This function allocates BSG_MBOX_SIZE (4KB) page size dma buffer and. | |
9e03aa2f | 2675 | * returns the pointer to the buffer. |
7ad20aa9 JS |
2676 | **/ |
2677 | static struct lpfc_dmabuf * | |
2678 | lpfc_bsg_dma_page_alloc(struct lpfc_hba *phba) | |
2679 | { | |
2680 | struct lpfc_dmabuf *dmabuf; | |
2681 | struct pci_dev *pcidev = phba->pcidev; | |
2682 | ||
2683 | /* allocate dma buffer struct */ | |
2684 | dmabuf = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
2685 | if (!dmabuf) | |
2686 | return NULL; | |
2687 | ||
2688 | INIT_LIST_HEAD(&dmabuf->list); | |
2689 | ||
2690 | /* now, allocate dma buffer */ | |
1aee383d JP |
2691 | dmabuf->virt = dma_zalloc_coherent(&pcidev->dev, BSG_MBOX_SIZE, |
2692 | &(dmabuf->phys), GFP_KERNEL); | |
7ad20aa9 JS |
2693 | |
2694 | if (!dmabuf->virt) { | |
2695 | kfree(dmabuf); | |
2696 | return NULL; | |
2697 | } | |
7ad20aa9 JS |
2698 | |
2699 | return dmabuf; | |
2700 | } | |
2701 | ||
2702 | /** | |
2703 | * lpfc_bsg_dma_page_free - free a bsg mbox page sized dma buffer | |
2704 | * @phba: Pointer to HBA context object. | |
2705 | * @dmabuf: Pointer to the bsg mbox page sized dma buffer descriptor. | |
2706 | * | |
2707 | * This routine just simply frees a dma buffer and its associated buffer | |
2708 | * descriptor referred by @dmabuf. | |
2709 | **/ | |
2710 | static void | |
2711 | lpfc_bsg_dma_page_free(struct lpfc_hba *phba, struct lpfc_dmabuf *dmabuf) | |
2712 | { | |
2713 | struct pci_dev *pcidev = phba->pcidev; | |
2714 | ||
2715 | if (!dmabuf) | |
2716 | return; | |
2717 | ||
2718 | if (dmabuf->virt) | |
2719 | dma_free_coherent(&pcidev->dev, BSG_MBOX_SIZE, | |
2720 | dmabuf->virt, dmabuf->phys); | |
2721 | kfree(dmabuf); | |
2722 | return; | |
2723 | } | |
2724 | ||
2725 | /** | |
2726 | * lpfc_bsg_dma_page_list_free - free a list of bsg mbox page sized dma buffers | |
2727 | * @phba: Pointer to HBA context object. | |
2728 | * @dmabuf_list: Pointer to a list of bsg mbox page sized dma buffer descs. | |
2729 | * | |
2730 | * This routine just simply frees all dma buffers and their associated buffer | |
2731 | * descriptors referred by @dmabuf_list. | |
2732 | **/ | |
2733 | static void | |
2734 | lpfc_bsg_dma_page_list_free(struct lpfc_hba *phba, | |
2735 | struct list_head *dmabuf_list) | |
2736 | { | |
2737 | struct lpfc_dmabuf *dmabuf, *next_dmabuf; | |
2738 | ||
2739 | if (list_empty(dmabuf_list)) | |
2740 | return; | |
2741 | ||
2742 | list_for_each_entry_safe(dmabuf, next_dmabuf, dmabuf_list, list) { | |
2743 | list_del_init(&dmabuf->list); | |
2744 | lpfc_bsg_dma_page_free(phba, dmabuf); | |
2745 | } | |
2746 | return; | |
2747 | } | |
2748 | ||
3b5dd52a JS |
2749 | /** |
2750 | * diag_cmd_data_alloc - fills in a bde struct with dma buffers | |
2751 | * @phba: Pointer to HBA context object | |
2752 | * @bpl: Pointer to 64 bit bde structure | |
2753 | * @size: Number of bytes to process | |
2754 | * @nocopydata: Flag to copy user data into the allocated buffer | |
2755 | * | |
2756 | * This function allocates page size buffers and populates an lpfc_dmabufext. | |
2757 | * If allowed the user data pointed to with indataptr is copied into the kernel | |
2758 | * memory. The chained list of page size buffers is returned. | |
2759 | **/ | |
2760 | static struct lpfc_dmabufext * | |
2761 | diag_cmd_data_alloc(struct lpfc_hba *phba, | |
2762 | struct ulp_bde64 *bpl, uint32_t size, | |
2763 | int nocopydata) | |
2764 | { | |
2765 | struct lpfc_dmabufext *mlist = NULL; | |
2766 | struct lpfc_dmabufext *dmp; | |
2767 | int cnt, offset = 0, i = 0; | |
2768 | struct pci_dev *pcidev; | |
2769 | ||
2770 | pcidev = phba->pcidev; | |
2771 | ||
2772 | while (size) { | |
2773 | /* We get chunks of 4K */ | |
2774 | if (size > BUF_SZ_4K) | |
2775 | cnt = BUF_SZ_4K; | |
2776 | else | |
2777 | cnt = size; | |
2778 | ||
2779 | /* allocate struct lpfc_dmabufext buffer header */ | |
2780 | dmp = kmalloc(sizeof(struct lpfc_dmabufext), GFP_KERNEL); | |
2781 | if (!dmp) | |
2782 | goto out; | |
2783 | ||
2784 | INIT_LIST_HEAD(&dmp->dma.list); | |
2785 | ||
2786 | /* Queue it to a linked list */ | |
2787 | if (mlist) | |
2788 | list_add_tail(&dmp->dma.list, &mlist->dma.list); | |
2789 | else | |
2790 | mlist = dmp; | |
2791 | ||
2792 | /* allocate buffer */ | |
2793 | dmp->dma.virt = dma_alloc_coherent(&pcidev->dev, | |
2794 | cnt, | |
2795 | &(dmp->dma.phys), | |
2796 | GFP_KERNEL); | |
2797 | ||
2798 | if (!dmp->dma.virt) | |
2799 | goto out; | |
2800 | ||
2801 | dmp->size = cnt; | |
2802 | ||
2803 | if (nocopydata) { | |
2804 | bpl->tus.f.bdeFlags = 0; | |
2805 | pci_dma_sync_single_for_device(phba->pcidev, | |
2806 | dmp->dma.phys, LPFC_BPL_SIZE, PCI_DMA_TODEVICE); | |
2807 | ||
2808 | } else { | |
2809 | memset((uint8_t *)dmp->dma.virt, 0, cnt); | |
2810 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; | |
2811 | } | |
2812 | ||
2813 | /* build buffer ptr list for IOCB */ | |
2814 | bpl->addrLow = le32_to_cpu(putPaddrLow(dmp->dma.phys)); | |
2815 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(dmp->dma.phys)); | |
2816 | bpl->tus.f.bdeSize = (ushort) cnt; | |
2817 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
2818 | bpl++; | |
2819 | ||
2820 | i++; | |
2821 | offset += cnt; | |
2822 | size -= cnt; | |
2823 | } | |
2824 | ||
a2fc4aef JS |
2825 | if (mlist) { |
2826 | mlist->flag = i; | |
2827 | return mlist; | |
2828 | } | |
3b5dd52a JS |
2829 | out: |
2830 | diag_cmd_data_free(phba, mlist); | |
2831 | return NULL; | |
2832 | } | |
2833 | ||
2834 | /** | |
2835 | * lpfcdiag_loop_post_rxbufs - post the receive buffers for an unsol CT cmd | |
2836 | * @phba: Pointer to HBA context object | |
2837 | * @rxxri: Receive exchange id | |
2838 | * @len: Number of data bytes | |
2839 | * | |
25985edc | 2840 | * This function allocates and posts a data buffer of sufficient size to receive |
3b5dd52a JS |
2841 | * an unsolicted CT command. |
2842 | **/ | |
2843 | static int lpfcdiag_loop_post_rxbufs(struct lpfc_hba *phba, uint16_t rxxri, | |
2844 | size_t len) | |
2845 | { | |
2846 | struct lpfc_sli *psli = &phba->sli; | |
2847 | struct lpfc_sli_ring *pring = &psli->ring[LPFC_ELS_RING]; | |
2848 | struct lpfc_iocbq *cmdiocbq; | |
2849 | IOCB_t *cmd = NULL; | |
2850 | struct list_head head, *curr, *next; | |
2851 | struct lpfc_dmabuf *rxbmp; | |
2852 | struct lpfc_dmabuf *dmp; | |
2853 | struct lpfc_dmabuf *mp[2] = {NULL, NULL}; | |
2854 | struct ulp_bde64 *rxbpl = NULL; | |
2855 | uint32_t num_bde; | |
2856 | struct lpfc_dmabufext *rxbuffer = NULL; | |
2857 | int ret_val = 0; | |
d439d286 | 2858 | int iocb_stat; |
3b5dd52a JS |
2859 | int i = 0; |
2860 | ||
2861 | cmdiocbq = lpfc_sli_get_iocbq(phba); | |
2862 | rxbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
2863 | if (rxbmp != NULL) { | |
2864 | rxbmp->virt = lpfc_mbuf_alloc(phba, 0, &rxbmp->phys); | |
c7495937 JS |
2865 | if (rxbmp->virt) { |
2866 | INIT_LIST_HEAD(&rxbmp->list); | |
2867 | rxbpl = (struct ulp_bde64 *) rxbmp->virt; | |
2868 | rxbuffer = diag_cmd_data_alloc(phba, rxbpl, len, 0); | |
2869 | } | |
3b5dd52a JS |
2870 | } |
2871 | ||
2872 | if (!cmdiocbq || !rxbmp || !rxbpl || !rxbuffer) { | |
d439d286 | 2873 | ret_val = -ENOMEM; |
3b5dd52a JS |
2874 | goto err_post_rxbufs_exit; |
2875 | } | |
2876 | ||
2877 | /* Queue buffers for the receive exchange */ | |
2878 | num_bde = (uint32_t)rxbuffer->flag; | |
2879 | dmp = &rxbuffer->dma; | |
2880 | ||
2881 | cmd = &cmdiocbq->iocb; | |
2882 | i = 0; | |
2883 | ||
2884 | INIT_LIST_HEAD(&head); | |
2885 | list_add_tail(&head, &dmp->list); | |
2886 | list_for_each_safe(curr, next, &head) { | |
2887 | mp[i] = list_entry(curr, struct lpfc_dmabuf, list); | |
2888 | list_del(curr); | |
2889 | ||
2890 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { | |
2891 | mp[i]->buffer_tag = lpfc_sli_get_buffer_tag(phba); | |
2892 | cmd->un.quexri64cx.buff.bde.addrHigh = | |
2893 | putPaddrHigh(mp[i]->phys); | |
2894 | cmd->un.quexri64cx.buff.bde.addrLow = | |
2895 | putPaddrLow(mp[i]->phys); | |
2896 | cmd->un.quexri64cx.buff.bde.tus.f.bdeSize = | |
2897 | ((struct lpfc_dmabufext *)mp[i])->size; | |
2898 | cmd->un.quexri64cx.buff.buffer_tag = mp[i]->buffer_tag; | |
2899 | cmd->ulpCommand = CMD_QUE_XRI64_CX; | |
2900 | cmd->ulpPU = 0; | |
2901 | cmd->ulpLe = 1; | |
2902 | cmd->ulpBdeCount = 1; | |
2903 | cmd->unsli3.que_xri64cx_ext_words.ebde_count = 0; | |
2904 | ||
2905 | } else { | |
2906 | cmd->un.cont64[i].addrHigh = putPaddrHigh(mp[i]->phys); | |
2907 | cmd->un.cont64[i].addrLow = putPaddrLow(mp[i]->phys); | |
2908 | cmd->un.cont64[i].tus.f.bdeSize = | |
2909 | ((struct lpfc_dmabufext *)mp[i])->size; | |
2910 | cmd->ulpBdeCount = ++i; | |
2911 | ||
2912 | if ((--num_bde > 0) && (i < 2)) | |
2913 | continue; | |
2914 | ||
2915 | cmd->ulpCommand = CMD_QUE_XRI_BUF64_CX; | |
2916 | cmd->ulpLe = 1; | |
2917 | } | |
2918 | ||
2919 | cmd->ulpClass = CLASS3; | |
2920 | cmd->ulpContext = rxxri; | |
2921 | ||
d439d286 JS |
2922 | iocb_stat = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, |
2923 | 0); | |
2924 | if (iocb_stat == IOCB_ERROR) { | |
3b5dd52a JS |
2925 | diag_cmd_data_free(phba, |
2926 | (struct lpfc_dmabufext *)mp[0]); | |
2927 | if (mp[1]) | |
2928 | diag_cmd_data_free(phba, | |
2929 | (struct lpfc_dmabufext *)mp[1]); | |
2930 | dmp = list_entry(next, struct lpfc_dmabuf, list); | |
d439d286 | 2931 | ret_val = -EIO; |
3b5dd52a JS |
2932 | goto err_post_rxbufs_exit; |
2933 | } | |
2934 | ||
2935 | lpfc_sli_ringpostbuf_put(phba, pring, mp[0]); | |
2936 | if (mp[1]) { | |
2937 | lpfc_sli_ringpostbuf_put(phba, pring, mp[1]); | |
2938 | mp[1] = NULL; | |
2939 | } | |
2940 | ||
2941 | /* The iocb was freed by lpfc_sli_issue_iocb */ | |
2942 | cmdiocbq = lpfc_sli_get_iocbq(phba); | |
2943 | if (!cmdiocbq) { | |
2944 | dmp = list_entry(next, struct lpfc_dmabuf, list); | |
d439d286 | 2945 | ret_val = -EIO; |
3b5dd52a JS |
2946 | goto err_post_rxbufs_exit; |
2947 | } | |
2948 | ||
2949 | cmd = &cmdiocbq->iocb; | |
2950 | i = 0; | |
2951 | } | |
2952 | list_del(&head); | |
2953 | ||
2954 | err_post_rxbufs_exit: | |
2955 | ||
2956 | if (rxbmp) { | |
2957 | if (rxbmp->virt) | |
2958 | lpfc_mbuf_free(phba, rxbmp->virt, rxbmp->phys); | |
2959 | kfree(rxbmp); | |
2960 | } | |
2961 | ||
2962 | if (cmdiocbq) | |
2963 | lpfc_sli_release_iocbq(phba, cmdiocbq); | |
2964 | return ret_val; | |
2965 | } | |
2966 | ||
2967 | /** | |
7ad20aa9 | 2968 | * lpfc_bsg_diag_loopback_run - run loopback on a port by issue ct cmd to itself |
3b5dd52a JS |
2969 | * @job: LPFC_BSG_VENDOR_DIAG_TEST fc_bsg_job |
2970 | * | |
2971 | * This function receives a user data buffer to be transmitted and received on | |
2972 | * the same port, the link must be up and in loopback mode prior | |
2973 | * to being called. | |
2974 | * 1. A kernel buffer is allocated to copy the user data into. | |
2975 | * 2. The port registers with "itself". | |
2976 | * 3. The transmit and receive exchange ids are obtained. | |
2977 | * 4. The receive exchange id is posted. | |
2978 | * 5. A new els loopback event is created. | |
2979 | * 6. The command and response iocbs are allocated. | |
2980 | * 7. The cmd iocb FsType is set to elx loopback and the CmdRsp to looppback. | |
2981 | * | |
2982 | * This function is meant to be called n times while the port is in loopback | |
2983 | * so it is the apps responsibility to issue a reset to take the port out | |
2984 | * of loopback mode. | |
2985 | **/ | |
2986 | static int | |
7ad20aa9 | 2987 | lpfc_bsg_diag_loopback_run(struct fc_bsg_job *job) |
3b5dd52a JS |
2988 | { |
2989 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
2990 | struct lpfc_hba *phba = vport->phba; | |
2991 | struct diag_mode_test *diag_mode; | |
2992 | struct lpfc_bsg_event *evt; | |
2993 | struct event_data *evdat; | |
2994 | struct lpfc_sli *psli = &phba->sli; | |
2995 | uint32_t size; | |
2996 | uint32_t full_size; | |
2997 | size_t segment_len = 0, segment_offset = 0, current_offset = 0; | |
4042629e | 2998 | uint16_t rpi = 0; |
1b51197d JS |
2999 | struct lpfc_iocbq *cmdiocbq, *rspiocbq = NULL; |
3000 | IOCB_t *cmd, *rsp = NULL; | |
3b5dd52a JS |
3001 | struct lpfc_sli_ct_request *ctreq; |
3002 | struct lpfc_dmabuf *txbmp; | |
3003 | struct ulp_bde64 *txbpl = NULL; | |
3004 | struct lpfc_dmabufext *txbuffer = NULL; | |
3005 | struct list_head head; | |
3006 | struct lpfc_dmabuf *curr; | |
1b51197d | 3007 | uint16_t txxri = 0, rxxri; |
3b5dd52a JS |
3008 | uint32_t num_bde; |
3009 | uint8_t *ptr = NULL, *rx_databuf = NULL; | |
3010 | int rc = 0; | |
d439d286 | 3011 | int time_left; |
5a0916b4 | 3012 | int iocb_stat = IOCB_SUCCESS; |
3b5dd52a JS |
3013 | unsigned long flags; |
3014 | void *dataout = NULL; | |
3015 | uint32_t total_mem; | |
3016 | ||
3017 | /* in case no data is returned return just the return code */ | |
3018 | job->reply->reply_payload_rcv_len = 0; | |
3019 | ||
3020 | if (job->request_len < | |
3021 | sizeof(struct fc_bsg_request) + sizeof(struct diag_mode_test)) { | |
3022 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
3023 | "2739 Received DIAG TEST request below minimum " | |
3024 | "size\n"); | |
3025 | rc = -EINVAL; | |
3026 | goto loopback_test_exit; | |
3027 | } | |
3028 | ||
3029 | if (job->request_payload.payload_len != | |
3030 | job->reply_payload.payload_len) { | |
3031 | rc = -EINVAL; | |
3032 | goto loopback_test_exit; | |
3033 | } | |
3b5dd52a JS |
3034 | diag_mode = (struct diag_mode_test *) |
3035 | job->request->rqst_data.h_vendor.vendor_cmd; | |
3036 | ||
3037 | if ((phba->link_state == LPFC_HBA_ERROR) || | |
3038 | (psli->sli_flag & LPFC_BLOCK_MGMT_IO) || | |
3039 | (!(psli->sli_flag & LPFC_SLI_ACTIVE))) { | |
3040 | rc = -EACCES; | |
3041 | goto loopback_test_exit; | |
3042 | } | |
3043 | ||
3044 | if (!lpfc_is_link_up(phba) || !(phba->link_flag & LS_LOOPBACK_MODE)) { | |
3045 | rc = -EACCES; | |
3046 | goto loopback_test_exit; | |
3047 | } | |
3048 | ||
3049 | size = job->request_payload.payload_len; | |
3050 | full_size = size + ELX_LOOPBACK_HEADER_SZ; /* plus the header */ | |
3051 | ||
3052 | if ((size == 0) || (size > 80 * BUF_SZ_4K)) { | |
3053 | rc = -ERANGE; | |
3054 | goto loopback_test_exit; | |
3055 | } | |
3056 | ||
63e801ce | 3057 | if (full_size >= BUF_SZ_4K) { |
3b5dd52a JS |
3058 | /* |
3059 | * Allocate memory for ioctl data. If buffer is bigger than 64k, | |
3060 | * then we allocate 64k and re-use that buffer over and over to | |
3061 | * xfer the whole block. This is because Linux kernel has a | |
3062 | * problem allocating more than 120k of kernel space memory. Saw | |
3063 | * problem with GET_FCPTARGETMAPPING... | |
3064 | */ | |
3065 | if (size <= (64 * 1024)) | |
63e801ce | 3066 | total_mem = full_size; |
3b5dd52a JS |
3067 | else |
3068 | total_mem = 64 * 1024; | |
3069 | } else | |
3070 | /* Allocate memory for ioctl data */ | |
3071 | total_mem = BUF_SZ_4K; | |
3072 | ||
3073 | dataout = kmalloc(total_mem, GFP_KERNEL); | |
3074 | if (dataout == NULL) { | |
3075 | rc = -ENOMEM; | |
3076 | goto loopback_test_exit; | |
3077 | } | |
3078 | ||
3079 | ptr = dataout; | |
3080 | ptr += ELX_LOOPBACK_HEADER_SZ; | |
3081 | sg_copy_to_buffer(job->request_payload.sg_list, | |
3082 | job->request_payload.sg_cnt, | |
3083 | ptr, size); | |
3b5dd52a | 3084 | rc = lpfcdiag_loop_self_reg(phba, &rpi); |
d439d286 | 3085 | if (rc) |
3b5dd52a | 3086 | goto loopback_test_exit; |
3b5dd52a | 3087 | |
1b51197d JS |
3088 | if (phba->sli_rev < LPFC_SLI_REV4) { |
3089 | rc = lpfcdiag_loop_get_xri(phba, rpi, &txxri, &rxxri); | |
3090 | if (rc) { | |
3091 | lpfcdiag_loop_self_unreg(phba, rpi); | |
3092 | goto loopback_test_exit; | |
3093 | } | |
3b5dd52a | 3094 | |
1b51197d JS |
3095 | rc = lpfcdiag_loop_post_rxbufs(phba, rxxri, full_size); |
3096 | if (rc) { | |
3097 | lpfcdiag_loop_self_unreg(phba, rpi); | |
3098 | goto loopback_test_exit; | |
3099 | } | |
3b5dd52a | 3100 | } |
3b5dd52a JS |
3101 | evt = lpfc_bsg_event_new(FC_REG_CT_EVENT, current->pid, |
3102 | SLI_CT_ELX_LOOPBACK); | |
3103 | if (!evt) { | |
3104 | lpfcdiag_loop_self_unreg(phba, rpi); | |
3105 | rc = -ENOMEM; | |
3106 | goto loopback_test_exit; | |
3107 | } | |
3108 | ||
3109 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
3110 | list_add(&evt->node, &phba->ct_ev_waiters); | |
3111 | lpfc_bsg_event_ref(evt); | |
3112 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
3113 | ||
3114 | cmdiocbq = lpfc_sli_get_iocbq(phba); | |
1b51197d JS |
3115 | if (phba->sli_rev < LPFC_SLI_REV4) |
3116 | rspiocbq = lpfc_sli_get_iocbq(phba); | |
3b5dd52a JS |
3117 | txbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
3118 | ||
3119 | if (txbmp) { | |
3120 | txbmp->virt = lpfc_mbuf_alloc(phba, 0, &txbmp->phys); | |
c7495937 JS |
3121 | if (txbmp->virt) { |
3122 | INIT_LIST_HEAD(&txbmp->list); | |
3123 | txbpl = (struct ulp_bde64 *) txbmp->virt; | |
3b5dd52a JS |
3124 | txbuffer = diag_cmd_data_alloc(phba, |
3125 | txbpl, full_size, 0); | |
c7495937 | 3126 | } |
3b5dd52a JS |
3127 | } |
3128 | ||
1b51197d JS |
3129 | if (!cmdiocbq || !txbmp || !txbpl || !txbuffer || !txbmp->virt) { |
3130 | rc = -ENOMEM; | |
3131 | goto err_loopback_test_exit; | |
3132 | } | |
3133 | if ((phba->sli_rev < LPFC_SLI_REV4) && !rspiocbq) { | |
3b5dd52a JS |
3134 | rc = -ENOMEM; |
3135 | goto err_loopback_test_exit; | |
3136 | } | |
3137 | ||
3138 | cmd = &cmdiocbq->iocb; | |
1b51197d JS |
3139 | if (phba->sli_rev < LPFC_SLI_REV4) |
3140 | rsp = &rspiocbq->iocb; | |
3b5dd52a JS |
3141 | |
3142 | INIT_LIST_HEAD(&head); | |
3143 | list_add_tail(&head, &txbuffer->dma.list); | |
3144 | list_for_each_entry(curr, &head, list) { | |
3145 | segment_len = ((struct lpfc_dmabufext *)curr)->size; | |
3146 | if (current_offset == 0) { | |
3147 | ctreq = curr->virt; | |
3148 | memset(ctreq, 0, ELX_LOOPBACK_HEADER_SZ); | |
3149 | ctreq->RevisionId.bits.Revision = SLI_CT_REVISION; | |
3150 | ctreq->RevisionId.bits.InId = 0; | |
3151 | ctreq->FsType = SLI_CT_ELX_LOOPBACK; | |
3152 | ctreq->FsSubType = 0; | |
3153 | ctreq->CommandResponse.bits.CmdRsp = ELX_LOOPBACK_DATA; | |
3154 | ctreq->CommandResponse.bits.Size = size; | |
3155 | segment_offset = ELX_LOOPBACK_HEADER_SZ; | |
3156 | } else | |
3157 | segment_offset = 0; | |
3158 | ||
3159 | BUG_ON(segment_offset >= segment_len); | |
3160 | memcpy(curr->virt + segment_offset, | |
3161 | ptr + current_offset, | |
3162 | segment_len - segment_offset); | |
3163 | ||
3164 | current_offset += segment_len - segment_offset; | |
3165 | BUG_ON(current_offset > size); | |
3166 | } | |
3167 | list_del(&head); | |
3168 | ||
3169 | /* Build the XMIT_SEQUENCE iocb */ | |
3b5dd52a JS |
3170 | num_bde = (uint32_t)txbuffer->flag; |
3171 | ||
3172 | cmd->un.xseq64.bdl.addrHigh = putPaddrHigh(txbmp->phys); | |
3173 | cmd->un.xseq64.bdl.addrLow = putPaddrLow(txbmp->phys); | |
3174 | cmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; | |
3175 | cmd->un.xseq64.bdl.bdeSize = (num_bde * sizeof(struct ulp_bde64)); | |
3176 | ||
3177 | cmd->un.xseq64.w5.hcsw.Fctl = (LS | LA); | |
3178 | cmd->un.xseq64.w5.hcsw.Dfctl = 0; | |
3179 | cmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL; | |
3180 | cmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT; | |
3181 | ||
3182 | cmd->ulpCommand = CMD_XMIT_SEQUENCE64_CX; | |
3183 | cmd->ulpBdeCount = 1; | |
3184 | cmd->ulpLe = 1; | |
3185 | cmd->ulpClass = CLASS3; | |
3b5dd52a | 3186 | |
1b51197d JS |
3187 | if (phba->sli_rev < LPFC_SLI_REV4) { |
3188 | cmd->ulpContext = txxri; | |
3189 | } else { | |
3190 | cmd->un.xseq64.bdl.ulpIoTag32 = 0; | |
3191 | cmd->un.ulpWord[3] = phba->sli4_hba.rpi_ids[rpi]; | |
3192 | cmdiocbq->context3 = txbmp; | |
3193 | cmdiocbq->sli4_xritag = NO_XRI; | |
3194 | cmd->unsli3.rcvsli3.ox_id = 0xffff; | |
3195 | } | |
3b5dd52a | 3196 | cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC; |
6c7cf486 | 3197 | cmdiocbq->iocb_flag |= LPFC_IO_LOOPBACK; |
3b5dd52a | 3198 | cmdiocbq->vport = phba->pport; |
5a0916b4 | 3199 | cmdiocbq->iocb_cmpl = NULL; |
d439d286 JS |
3200 | iocb_stat = lpfc_sli_issue_iocb_wait(phba, LPFC_ELS_RING, cmdiocbq, |
3201 | rspiocbq, (phba->fc_ratov * 2) + | |
3202 | LPFC_DRVR_TIMEOUT); | |
3b5dd52a | 3203 | |
53151bbb JS |
3204 | if ((iocb_stat != IOCB_SUCCESS) || |
3205 | ((phba->sli_rev < LPFC_SLI_REV4) && | |
3206 | (rsp->ulpStatus != IOSTAT_SUCCESS))) { | |
1b51197d JS |
3207 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, |
3208 | "3126 Failed loopback test issue iocb: " | |
3209 | "iocb_stat:x%x\n", iocb_stat); | |
3b5dd52a JS |
3210 | rc = -EIO; |
3211 | goto err_loopback_test_exit; | |
3212 | } | |
3213 | ||
3214 | evt->waiting = 1; | |
d439d286 | 3215 | time_left = wait_event_interruptible_timeout( |
3b5dd52a | 3216 | evt->wq, !list_empty(&evt->events_to_see), |
256ec0d0 JS |
3217 | msecs_to_jiffies(1000 * |
3218 | ((phba->fc_ratov * 2) + LPFC_DRVR_TIMEOUT))); | |
3b5dd52a | 3219 | evt->waiting = 0; |
1b51197d | 3220 | if (list_empty(&evt->events_to_see)) { |
d439d286 | 3221 | rc = (time_left) ? -EINTR : -ETIMEDOUT; |
1b51197d JS |
3222 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, |
3223 | "3125 Not receiving unsolicited event, " | |
3224 | "rc:x%x\n", rc); | |
3225 | } else { | |
3b5dd52a JS |
3226 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
3227 | list_move(evt->events_to_see.prev, &evt->events_to_get); | |
3228 | evdat = list_entry(evt->events_to_get.prev, | |
3229 | typeof(*evdat), node); | |
3230 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
3231 | rx_databuf = evdat->data; | |
3232 | if (evdat->len != full_size) { | |
3233 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, | |
3234 | "1603 Loopback test did not receive expected " | |
3235 | "data length. actual length 0x%x expected " | |
3236 | "length 0x%x\n", | |
3237 | evdat->len, full_size); | |
3238 | rc = -EIO; | |
3239 | } else if (rx_databuf == NULL) | |
3240 | rc = -EIO; | |
3241 | else { | |
3242 | rc = IOCB_SUCCESS; | |
3243 | /* skip over elx loopback header */ | |
3244 | rx_databuf += ELX_LOOPBACK_HEADER_SZ; | |
3245 | job->reply->reply_payload_rcv_len = | |
3246 | sg_copy_from_buffer(job->reply_payload.sg_list, | |
3247 | job->reply_payload.sg_cnt, | |
3248 | rx_databuf, size); | |
3249 | job->reply->reply_payload_rcv_len = size; | |
3250 | } | |
3251 | } | |
3252 | ||
3253 | err_loopback_test_exit: | |
3254 | lpfcdiag_loop_self_unreg(phba, rpi); | |
3255 | ||
3256 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
3257 | lpfc_bsg_event_unref(evt); /* release ref */ | |
3258 | lpfc_bsg_event_unref(evt); /* delete */ | |
3259 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
3260 | ||
5a0916b4 | 3261 | if ((cmdiocbq != NULL) && (iocb_stat != IOCB_TIMEDOUT)) |
3b5dd52a JS |
3262 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
3263 | ||
3264 | if (rspiocbq != NULL) | |
3265 | lpfc_sli_release_iocbq(phba, rspiocbq); | |
3266 | ||
3267 | if (txbmp != NULL) { | |
3268 | if (txbpl != NULL) { | |
3269 | if (txbuffer != NULL) | |
3270 | diag_cmd_data_free(phba, txbuffer); | |
3271 | lpfc_mbuf_free(phba, txbmp->virt, txbmp->phys); | |
3272 | } | |
3273 | kfree(txbmp); | |
3274 | } | |
3275 | ||
3276 | loopback_test_exit: | |
3277 | kfree(dataout); | |
3278 | /* make error code available to userspace */ | |
3279 | job->reply->result = rc; | |
3280 | job->dd_data = NULL; | |
3281 | /* complete the job back to userspace if no error */ | |
1b51197d | 3282 | if (rc == IOCB_SUCCESS) |
3b5dd52a JS |
3283 | job->job_done(job); |
3284 | return rc; | |
3285 | } | |
3286 | ||
3287 | /** | |
3288 | * lpfc_bsg_get_dfc_rev - process a GET_DFC_REV bsg vendor command | |
3289 | * @job: GET_DFC_REV fc_bsg_job | |
3290 | **/ | |
3291 | static int | |
3292 | lpfc_bsg_get_dfc_rev(struct fc_bsg_job *job) | |
3293 | { | |
3294 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
3295 | struct lpfc_hba *phba = vport->phba; | |
3296 | struct get_mgmt_rev *event_req; | |
3297 | struct get_mgmt_rev_reply *event_reply; | |
3298 | int rc = 0; | |
3299 | ||
3300 | if (job->request_len < | |
3301 | sizeof(struct fc_bsg_request) + sizeof(struct get_mgmt_rev)) { | |
3302 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
3303 | "2740 Received GET_DFC_REV request below " | |
3304 | "minimum size\n"); | |
3305 | rc = -EINVAL; | |
3306 | goto job_error; | |
3307 | } | |
3308 | ||
3309 | event_req = (struct get_mgmt_rev *) | |
3310 | job->request->rqst_data.h_vendor.vendor_cmd; | |
3311 | ||
3312 | event_reply = (struct get_mgmt_rev_reply *) | |
3313 | job->reply->reply_data.vendor_reply.vendor_rsp; | |
3314 | ||
3315 | if (job->reply_len < | |
3316 | sizeof(struct fc_bsg_request) + sizeof(struct get_mgmt_rev_reply)) { | |
3317 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
3318 | "2741 Received GET_DFC_REV reply below " | |
3319 | "minimum size\n"); | |
3320 | rc = -EINVAL; | |
3321 | goto job_error; | |
3322 | } | |
3323 | ||
3324 | event_reply->info.a_Major = MANAGEMENT_MAJOR_REV; | |
3325 | event_reply->info.a_Minor = MANAGEMENT_MINOR_REV; | |
3326 | job_error: | |
3327 | job->reply->result = rc; | |
3328 | if (rc == 0) | |
3329 | job->job_done(job); | |
3330 | return rc; | |
3331 | } | |
3332 | ||
3333 | /** | |
7ad20aa9 | 3334 | * lpfc_bsg_issue_mbox_cmpl - lpfc_bsg_issue_mbox mbox completion handler |
3b5dd52a JS |
3335 | * @phba: Pointer to HBA context object. |
3336 | * @pmboxq: Pointer to mailbox command. | |
3337 | * | |
3338 | * This is completion handler function for mailbox commands issued from | |
3339 | * lpfc_bsg_issue_mbox function. This function is called by the | |
3340 | * mailbox event handler function with no lock held. This function | |
3341 | * will wake up thread waiting on the wait queue pointed by context1 | |
3342 | * of the mailbox. | |
3343 | **/ | |
9ab9b134 | 3344 | static void |
7ad20aa9 | 3345 | lpfc_bsg_issue_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) |
3b5dd52a JS |
3346 | { |
3347 | struct bsg_job_data *dd_data; | |
3b5dd52a JS |
3348 | struct fc_bsg_job *job; |
3349 | uint32_t size; | |
3350 | unsigned long flags; | |
7ad20aa9 | 3351 | uint8_t *pmb, *pmb_buf; |
3b5dd52a | 3352 | |
3b5dd52a | 3353 | dd_data = pmboxq->context1; |
3b5dd52a | 3354 | |
7ad20aa9 JS |
3355 | /* |
3356 | * The outgoing buffer is readily referred from the dma buffer, | |
3357 | * just need to get header part from mailboxq structure. | |
7a470277 | 3358 | */ |
7ad20aa9 JS |
3359 | pmb = (uint8_t *)&pmboxq->u.mb; |
3360 | pmb_buf = (uint8_t *)dd_data->context_un.mbox.mb; | |
3361 | memcpy(pmb_buf, pmb, sizeof(MAILBOX_t)); | |
7a470277 | 3362 | |
a33c4f7b JS |
3363 | /* Determine if job has been aborted */ |
3364 | ||
3365 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
3366 | job = dd_data->set_job; | |
3367 | if (job) { | |
3368 | /* Prevent timeout handling from trying to abort job */ | |
3369 | job->dd_data = NULL; | |
3370 | } | |
3371 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
3372 | ||
3373 | /* Copy the mailbox data to the job if it is still active */ | |
3374 | ||
5a6f133e JS |
3375 | if (job) { |
3376 | size = job->reply_payload.payload_len; | |
3377 | job->reply->reply_payload_rcv_len = | |
3378 | sg_copy_from_buffer(job->reply_payload.sg_list, | |
7ad20aa9 JS |
3379 | job->reply_payload.sg_cnt, |
3380 | pmb_buf, size); | |
5a6f133e | 3381 | } |
7a470277 | 3382 | |
a33c4f7b | 3383 | dd_data->set_job = NULL; |
3b5dd52a | 3384 | mempool_free(dd_data->context_un.mbox.pmboxq, phba->mbox_mem_pool); |
7ad20aa9 JS |
3385 | lpfc_bsg_dma_page_free(phba, dd_data->context_un.mbox.dmabuffers); |
3386 | kfree(dd_data); | |
3387 | ||
a33c4f7b JS |
3388 | /* Complete the job if the job is still active */ |
3389 | ||
7ad20aa9 JS |
3390 | if (job) { |
3391 | job->reply->result = 0; | |
3392 | job->job_done(job); | |
3393 | } | |
3394 | return; | |
3395 | } | |
3396 | ||
3397 | /** | |
3398 | * lpfc_bsg_check_cmd_access - test for a supported mailbox command | |
3399 | * @phba: Pointer to HBA context object. | |
3400 | * @mb: Pointer to a mailbox object. | |
3401 | * @vport: Pointer to a vport object. | |
3402 | * | |
3403 | * Some commands require the port to be offline, some may not be called from | |
3404 | * the application. | |
3405 | **/ | |
3406 | static int lpfc_bsg_check_cmd_access(struct lpfc_hba *phba, | |
3407 | MAILBOX_t *mb, struct lpfc_vport *vport) | |
3408 | { | |
3409 | /* return negative error values for bsg job */ | |
3410 | switch (mb->mbxCommand) { | |
3411 | /* Offline only */ | |
3412 | case MBX_INIT_LINK: | |
3413 | case MBX_DOWN_LINK: | |
3414 | case MBX_CONFIG_LINK: | |
3415 | case MBX_CONFIG_RING: | |
3416 | case MBX_RESET_RING: | |
3417 | case MBX_UNREG_LOGIN: | |
3418 | case MBX_CLEAR_LA: | |
3419 | case MBX_DUMP_CONTEXT: | |
3420 | case MBX_RUN_DIAGS: | |
3421 | case MBX_RESTART: | |
3422 | case MBX_SET_MASK: | |
3423 | if (!(vport->fc_flag & FC_OFFLINE_MODE)) { | |
3424 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
3425 | "2743 Command 0x%x is illegal in on-line " | |
3426 | "state\n", | |
3427 | mb->mbxCommand); | |
3428 | return -EPERM; | |
3429 | } | |
3430 | case MBX_WRITE_NV: | |
3431 | case MBX_WRITE_VPARMS: | |
3432 | case MBX_LOAD_SM: | |
3433 | case MBX_READ_NV: | |
3434 | case MBX_READ_CONFIG: | |
3435 | case MBX_READ_RCONFIG: | |
3436 | case MBX_READ_STATUS: | |
3437 | case MBX_READ_XRI: | |
3438 | case MBX_READ_REV: | |
3439 | case MBX_READ_LNK_STAT: | |
3440 | case MBX_DUMP_MEMORY: | |
3441 | case MBX_DOWN_LOAD: | |
3442 | case MBX_UPDATE_CFG: | |
3443 | case MBX_KILL_BOARD: | |
06f35551 | 3444 | case MBX_READ_TOPOLOGY: |
7ad20aa9 JS |
3445 | case MBX_LOAD_AREA: |
3446 | case MBX_LOAD_EXP_ROM: | |
3447 | case MBX_BEACON: | |
3448 | case MBX_DEL_LD_ENTRY: | |
3449 | case MBX_SET_DEBUG: | |
3450 | case MBX_WRITE_WWN: | |
3451 | case MBX_SLI4_CONFIG: | |
3452 | case MBX_READ_EVENT_LOG: | |
3453 | case MBX_READ_EVENT_LOG_STATUS: | |
3454 | case MBX_WRITE_EVENT_LOG: | |
3455 | case MBX_PORT_CAPABILITIES: | |
3456 | case MBX_PORT_IOV_CONTROL: | |
3457 | case MBX_RUN_BIU_DIAG64: | |
3458 | break; | |
3459 | case MBX_SET_VARIABLE: | |
3460 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
3461 | "1226 mbox: set_variable 0x%x, 0x%x\n", | |
3462 | mb->un.varWords[0], | |
3463 | mb->un.varWords[1]); | |
3464 | if ((mb->un.varWords[0] == SETVAR_MLOMNT) | |
3465 | && (mb->un.varWords[1] == 1)) { | |
3466 | phba->wait_4_mlo_maint_flg = 1; | |
3467 | } else if (mb->un.varWords[0] == SETVAR_MLORST) { | |
1b51197d | 3468 | spin_lock_irq(&phba->hbalock); |
7ad20aa9 | 3469 | phba->link_flag &= ~LS_LOOPBACK_MODE; |
1b51197d | 3470 | spin_unlock_irq(&phba->hbalock); |
7ad20aa9 JS |
3471 | phba->fc_topology = LPFC_TOPOLOGY_PT_PT; |
3472 | } | |
3473 | break; | |
3474 | case MBX_READ_SPARM64: | |
7ad20aa9 JS |
3475 | case MBX_REG_LOGIN: |
3476 | case MBX_REG_LOGIN64: | |
3477 | case MBX_CONFIG_PORT: | |
3478 | case MBX_RUN_BIU_DIAG: | |
3479 | default: | |
3480 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
3481 | "2742 Unknown Command 0x%x\n", | |
3482 | mb->mbxCommand); | |
3483 | return -EPERM; | |
3484 | } | |
3485 | ||
3486 | return 0; /* ok */ | |
3487 | } | |
3488 | ||
3489 | /** | |
3490 | * lpfc_bsg_mbox_ext_cleanup - clean up context of multi-buffer mbox session | |
3491 | * @phba: Pointer to HBA context object. | |
3492 | * | |
3493 | * This is routine clean up and reset BSG handling of multi-buffer mbox | |
3494 | * command session. | |
3495 | **/ | |
3496 | static void | |
3497 | lpfc_bsg_mbox_ext_session_reset(struct lpfc_hba *phba) | |
3498 | { | |
3499 | if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_IDLE) | |
3500 | return; | |
3501 | ||
3502 | /* free all memory, including dma buffers */ | |
3503 | lpfc_bsg_dma_page_list_free(phba, | |
3504 | &phba->mbox_ext_buf_ctx.ext_dmabuf_list); | |
3505 | lpfc_bsg_dma_page_free(phba, phba->mbox_ext_buf_ctx.mbx_dmabuf); | |
3506 | /* multi-buffer write mailbox command pass-through complete */ | |
3507 | memset((char *)&phba->mbox_ext_buf_ctx, 0, | |
3508 | sizeof(struct lpfc_mbox_ext_buf_ctx)); | |
3509 | INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list); | |
3510 | ||
3511 | return; | |
3512 | } | |
3513 | ||
3514 | /** | |
3515 | * lpfc_bsg_issue_mbox_ext_handle_job - job handler for multi-buffer mbox cmpl | |
3516 | * @phba: Pointer to HBA context object. | |
3517 | * @pmboxq: Pointer to mailbox command. | |
3518 | * | |
3519 | * This is routine handles BSG job for mailbox commands completions with | |
3520 | * multiple external buffers. | |
3521 | **/ | |
3522 | static struct fc_bsg_job * | |
3523 | lpfc_bsg_issue_mbox_ext_handle_job(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) | |
3524 | { | |
3525 | struct bsg_job_data *dd_data; | |
3526 | struct fc_bsg_job *job; | |
3527 | uint8_t *pmb, *pmb_buf; | |
3528 | unsigned long flags; | |
3529 | uint32_t size; | |
3530 | int rc = 0; | |
026abb87 JS |
3531 | struct lpfc_dmabuf *dmabuf; |
3532 | struct lpfc_sli_config_mbox *sli_cfg_mbx; | |
3533 | uint8_t *pmbx; | |
7ad20aa9 | 3534 | |
7ad20aa9 | 3535 | dd_data = pmboxq->context1; |
a33c4f7b JS |
3536 | |
3537 | /* Determine if job has been aborted */ | |
3538 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
3539 | job = dd_data->set_job; | |
3540 | if (job) { | |
3541 | /* Prevent timeout handling from trying to abort job */ | |
3542 | job->dd_data = NULL; | |
7ad20aa9 | 3543 | } |
a33c4f7b | 3544 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
7ad20aa9 JS |
3545 | |
3546 | /* | |
3547 | * The outgoing buffer is readily referred from the dma buffer, | |
3548 | * just need to get header part from mailboxq structure. | |
3549 | */ | |
a33c4f7b | 3550 | |
7ad20aa9 JS |
3551 | pmb = (uint8_t *)&pmboxq->u.mb; |
3552 | pmb_buf = (uint8_t *)dd_data->context_un.mbox.mb; | |
026abb87 | 3553 | /* Copy the byte swapped response mailbox back to the user */ |
7ad20aa9 | 3554 | memcpy(pmb_buf, pmb, sizeof(MAILBOX_t)); |
026abb87 JS |
3555 | /* if there is any non-embedded extended data copy that too */ |
3556 | dmabuf = phba->mbox_ext_buf_ctx.mbx_dmabuf; | |
3557 | sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt; | |
3558 | if (!bsg_bf_get(lpfc_mbox_hdr_emb, | |
3559 | &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr)) { | |
3560 | pmbx = (uint8_t *)dmabuf->virt; | |
3561 | /* byte swap the extended data following the mailbox command */ | |
3562 | lpfc_sli_pcimem_bcopy(&pmbx[sizeof(MAILBOX_t)], | |
3563 | &pmbx[sizeof(MAILBOX_t)], | |
3564 | sli_cfg_mbx->un.sli_config_emb0_subsys.mse[0].buf_len); | |
3565 | } | |
7ad20aa9 | 3566 | |
a33c4f7b JS |
3567 | /* Complete the job if the job is still active */ |
3568 | ||
7ad20aa9 JS |
3569 | if (job) { |
3570 | size = job->reply_payload.payload_len; | |
3571 | job->reply->reply_payload_rcv_len = | |
3572 | sg_copy_from_buffer(job->reply_payload.sg_list, | |
3573 | job->reply_payload.sg_cnt, | |
3574 | pmb_buf, size); | |
a33c4f7b | 3575 | |
7ad20aa9 JS |
3576 | /* result for successful */ |
3577 | job->reply->result = 0; | |
a33c4f7b | 3578 | |
7ad20aa9 JS |
3579 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
3580 | "2937 SLI_CONFIG ext-buffer maibox command " | |
3581 | "(x%x/x%x) complete bsg job done, bsize:%d\n", | |
3582 | phba->mbox_ext_buf_ctx.nembType, | |
3583 | phba->mbox_ext_buf_ctx.mboxType, size); | |
b76f2dc9 JS |
3584 | lpfc_idiag_mbxacc_dump_bsg_mbox(phba, |
3585 | phba->mbox_ext_buf_ctx.nembType, | |
3586 | phba->mbox_ext_buf_ctx.mboxType, | |
3587 | dma_ebuf, sta_pos_addr, | |
3588 | phba->mbox_ext_buf_ctx.mbx_dmabuf, 0); | |
a33c4f7b | 3589 | } else { |
7ad20aa9 JS |
3590 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, |
3591 | "2938 SLI_CONFIG ext-buffer maibox " | |
3592 | "command (x%x/x%x) failure, rc:x%x\n", | |
3593 | phba->mbox_ext_buf_ctx.nembType, | |
3594 | phba->mbox_ext_buf_ctx.mboxType, rc); | |
a33c4f7b JS |
3595 | } |
3596 | ||
3597 | ||
7ad20aa9 JS |
3598 | /* state change */ |
3599 | phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_DONE; | |
3600 | kfree(dd_data); | |
7ad20aa9 JS |
3601 | return job; |
3602 | } | |
3603 | ||
3604 | /** | |
3605 | * lpfc_bsg_issue_read_mbox_ext_cmpl - compl handler for multi-buffer read mbox | |
3606 | * @phba: Pointer to HBA context object. | |
3607 | * @pmboxq: Pointer to mailbox command. | |
3608 | * | |
3609 | * This is completion handler function for mailbox read commands with multiple | |
3610 | * external buffers. | |
3611 | **/ | |
3612 | static void | |
3613 | lpfc_bsg_issue_read_mbox_ext_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) | |
3614 | { | |
3615 | struct fc_bsg_job *job; | |
3616 | ||
a33c4f7b JS |
3617 | job = lpfc_bsg_issue_mbox_ext_handle_job(phba, pmboxq); |
3618 | ||
7ad20aa9 | 3619 | /* handle the BSG job with mailbox command */ |
a33c4f7b | 3620 | if (!job) |
7ad20aa9 JS |
3621 | pmboxq->u.mb.mbxStatus = MBXERR_ERROR; |
3622 | ||
3623 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
3624 | "2939 SLI_CONFIG ext-buffer rd maibox command " | |
3625 | "complete, ctxState:x%x, mbxStatus:x%x\n", | |
3626 | phba->mbox_ext_buf_ctx.state, pmboxq->u.mb.mbxStatus); | |
3627 | ||
7ad20aa9 JS |
3628 | if (pmboxq->u.mb.mbxStatus || phba->mbox_ext_buf_ctx.numBuf == 1) |
3629 | lpfc_bsg_mbox_ext_session_reset(phba); | |
3630 | ||
3631 | /* free base driver mailbox structure memory */ | |
3632 | mempool_free(pmboxq, phba->mbox_mem_pool); | |
3633 | ||
a33c4f7b | 3634 | /* if the job is still active, call job done */ |
7ad20aa9 JS |
3635 | if (job) |
3636 | job->job_done(job); | |
3637 | ||
3638 | return; | |
3639 | } | |
3640 | ||
3641 | /** | |
3642 | * lpfc_bsg_issue_write_mbox_ext_cmpl - cmpl handler for multi-buffer write mbox | |
3643 | * @phba: Pointer to HBA context object. | |
3644 | * @pmboxq: Pointer to mailbox command. | |
3645 | * | |
3646 | * This is completion handler function for mailbox write commands with multiple | |
3647 | * external buffers. | |
3648 | **/ | |
3649 | static void | |
3650 | lpfc_bsg_issue_write_mbox_ext_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) | |
3651 | { | |
3652 | struct fc_bsg_job *job; | |
3653 | ||
a33c4f7b JS |
3654 | job = lpfc_bsg_issue_mbox_ext_handle_job(phba, pmboxq); |
3655 | ||
7ad20aa9 | 3656 | /* handle the BSG job with the mailbox command */ |
a33c4f7b | 3657 | if (!job) |
7ad20aa9 JS |
3658 | pmboxq->u.mb.mbxStatus = MBXERR_ERROR; |
3659 | ||
3660 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
3661 | "2940 SLI_CONFIG ext-buffer wr maibox command " | |
3662 | "complete, ctxState:x%x, mbxStatus:x%x\n", | |
3663 | phba->mbox_ext_buf_ctx.state, pmboxq->u.mb.mbxStatus); | |
3664 | ||
7ad20aa9 JS |
3665 | /* free all memory, including dma buffers */ |
3666 | mempool_free(pmboxq, phba->mbox_mem_pool); | |
3667 | lpfc_bsg_mbox_ext_session_reset(phba); | |
3668 | ||
a33c4f7b | 3669 | /* if the job is still active, call job done */ |
7ad20aa9 JS |
3670 | if (job) |
3671 | job->job_done(job); | |
3672 | ||
3673 | return; | |
3674 | } | |
3675 | ||
3676 | static void | |
3677 | lpfc_bsg_sli_cfg_dma_desc_setup(struct lpfc_hba *phba, enum nemb_type nemb_tp, | |
3678 | uint32_t index, struct lpfc_dmabuf *mbx_dmabuf, | |
3679 | struct lpfc_dmabuf *ext_dmabuf) | |
3680 | { | |
3681 | struct lpfc_sli_config_mbox *sli_cfg_mbx; | |
3682 | ||
3683 | /* pointer to the start of mailbox command */ | |
3684 | sli_cfg_mbx = (struct lpfc_sli_config_mbox *)mbx_dmabuf->virt; | |
3685 | ||
3686 | if (nemb_tp == nemb_mse) { | |
3687 | if (index == 0) { | |
3688 | sli_cfg_mbx->un.sli_config_emb0_subsys. | |
3689 | mse[index].pa_hi = | |
3690 | putPaddrHigh(mbx_dmabuf->phys + | |
3691 | sizeof(MAILBOX_t)); | |
3692 | sli_cfg_mbx->un.sli_config_emb0_subsys. | |
3693 | mse[index].pa_lo = | |
3694 | putPaddrLow(mbx_dmabuf->phys + | |
3695 | sizeof(MAILBOX_t)); | |
3696 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
3697 | "2943 SLI_CONFIG(mse)[%d], " | |
3698 | "bufLen:%d, addrHi:x%x, addrLo:x%x\n", | |
3699 | index, | |
3700 | sli_cfg_mbx->un.sli_config_emb0_subsys. | |
3701 | mse[index].buf_len, | |
3702 | sli_cfg_mbx->un.sli_config_emb0_subsys. | |
3703 | mse[index].pa_hi, | |
3704 | sli_cfg_mbx->un.sli_config_emb0_subsys. | |
3705 | mse[index].pa_lo); | |
3706 | } else { | |
3707 | sli_cfg_mbx->un.sli_config_emb0_subsys. | |
3708 | mse[index].pa_hi = | |
3709 | putPaddrHigh(ext_dmabuf->phys); | |
3710 | sli_cfg_mbx->un.sli_config_emb0_subsys. | |
3711 | mse[index].pa_lo = | |
3712 | putPaddrLow(ext_dmabuf->phys); | |
3713 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
3714 | "2944 SLI_CONFIG(mse)[%d], " | |
3715 | "bufLen:%d, addrHi:x%x, addrLo:x%x\n", | |
3716 | index, | |
3717 | sli_cfg_mbx->un.sli_config_emb0_subsys. | |
3718 | mse[index].buf_len, | |
3719 | sli_cfg_mbx->un.sli_config_emb0_subsys. | |
3720 | mse[index].pa_hi, | |
3721 | sli_cfg_mbx->un.sli_config_emb0_subsys. | |
3722 | mse[index].pa_lo); | |
3723 | } | |
3724 | } else { | |
3725 | if (index == 0) { | |
3726 | sli_cfg_mbx->un.sli_config_emb1_subsys. | |
3727 | hbd[index].pa_hi = | |
3728 | putPaddrHigh(mbx_dmabuf->phys + | |
3729 | sizeof(MAILBOX_t)); | |
3730 | sli_cfg_mbx->un.sli_config_emb1_subsys. | |
3731 | hbd[index].pa_lo = | |
3732 | putPaddrLow(mbx_dmabuf->phys + | |
3733 | sizeof(MAILBOX_t)); | |
3734 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
3735 | "3007 SLI_CONFIG(hbd)[%d], " | |
3736 | "bufLen:%d, addrHi:x%x, addrLo:x%x\n", | |
3737 | index, | |
3738 | bsg_bf_get(lpfc_mbox_sli_config_ecmn_hbd_len, | |
3739 | &sli_cfg_mbx->un. | |
3740 | sli_config_emb1_subsys.hbd[index]), | |
3741 | sli_cfg_mbx->un.sli_config_emb1_subsys. | |
3742 | hbd[index].pa_hi, | |
3743 | sli_cfg_mbx->un.sli_config_emb1_subsys. | |
3744 | hbd[index].pa_lo); | |
3745 | ||
3746 | } else { | |
3747 | sli_cfg_mbx->un.sli_config_emb1_subsys. | |
3748 | hbd[index].pa_hi = | |
3749 | putPaddrHigh(ext_dmabuf->phys); | |
3750 | sli_cfg_mbx->un.sli_config_emb1_subsys. | |
3751 | hbd[index].pa_lo = | |
3752 | putPaddrLow(ext_dmabuf->phys); | |
3753 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
3754 | "3008 SLI_CONFIG(hbd)[%d], " | |
3755 | "bufLen:%d, addrHi:x%x, addrLo:x%x\n", | |
3756 | index, | |
3757 | bsg_bf_get(lpfc_mbox_sli_config_ecmn_hbd_len, | |
3758 | &sli_cfg_mbx->un. | |
3759 | sli_config_emb1_subsys.hbd[index]), | |
3760 | sli_cfg_mbx->un.sli_config_emb1_subsys. | |
3761 | hbd[index].pa_hi, | |
3762 | sli_cfg_mbx->un.sli_config_emb1_subsys. | |
3763 | hbd[index].pa_lo); | |
3764 | } | |
3765 | } | |
3766 | return; | |
3767 | } | |
3768 | ||
3769 | /** | |
3770 | * lpfc_bsg_sli_cfg_mse_read_cmd_ext - sli_config non-embedded mailbox cmd read | |
3771 | * @phba: Pointer to HBA context object. | |
3772 | * @mb: Pointer to a BSG mailbox object. | |
3773 | * @nemb_tp: Enumerate of non-embedded mailbox command type. | |
3774 | * @dmabuff: Pointer to a DMA buffer descriptor. | |
3775 | * | |
3776 | * This routine performs SLI_CONFIG (0x9B) read mailbox command operation with | |
3777 | * non-embedded external bufffers. | |
3778 | **/ | |
3779 | static int | |
3780 | lpfc_bsg_sli_cfg_read_cmd_ext(struct lpfc_hba *phba, struct fc_bsg_job *job, | |
3781 | enum nemb_type nemb_tp, | |
3782 | struct lpfc_dmabuf *dmabuf) | |
3783 | { | |
3784 | struct lpfc_sli_config_mbox *sli_cfg_mbx; | |
3785 | struct dfc_mbox_req *mbox_req; | |
3786 | struct lpfc_dmabuf *curr_dmabuf, *next_dmabuf; | |
3787 | uint32_t ext_buf_cnt, ext_buf_index; | |
3788 | struct lpfc_dmabuf *ext_dmabuf = NULL; | |
3789 | struct bsg_job_data *dd_data = NULL; | |
3790 | LPFC_MBOXQ_t *pmboxq = NULL; | |
3791 | MAILBOX_t *pmb; | |
3792 | uint8_t *pmbx; | |
3793 | int rc, i; | |
3794 | ||
3795 | mbox_req = | |
3796 | (struct dfc_mbox_req *)job->request->rqst_data.h_vendor.vendor_cmd; | |
3797 | ||
3798 | /* pointer to the start of mailbox command */ | |
3799 | sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt; | |
3800 | ||
3801 | if (nemb_tp == nemb_mse) { | |
3802 | ext_buf_cnt = bsg_bf_get(lpfc_mbox_hdr_mse_cnt, | |
3803 | &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr); | |
3804 | if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_MSE) { | |
3805 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, | |
3806 | "2945 Handled SLI_CONFIG(mse) rd, " | |
3807 | "ext_buf_cnt(%d) out of range(%d)\n", | |
3808 | ext_buf_cnt, | |
3809 | LPFC_MBX_SLI_CONFIG_MAX_MSE); | |
3810 | rc = -ERANGE; | |
3811 | goto job_error; | |
3812 | } | |
3813 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
3814 | "2941 Handled SLI_CONFIG(mse) rd, " | |
3815 | "ext_buf_cnt:%d\n", ext_buf_cnt); | |
3816 | } else { | |
3817 | /* sanity check on interface type for support */ | |
3818 | if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != | |
3819 | LPFC_SLI_INTF_IF_TYPE_2) { | |
3820 | rc = -ENODEV; | |
3821 | goto job_error; | |
3822 | } | |
3823 | /* nemb_tp == nemb_hbd */ | |
3824 | ext_buf_cnt = sli_cfg_mbx->un.sli_config_emb1_subsys.hbd_count; | |
3825 | if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_HBD) { | |
3826 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, | |
3827 | "2946 Handled SLI_CONFIG(hbd) rd, " | |
3828 | "ext_buf_cnt(%d) out of range(%d)\n", | |
3829 | ext_buf_cnt, | |
3830 | LPFC_MBX_SLI_CONFIG_MAX_HBD); | |
3831 | rc = -ERANGE; | |
3832 | goto job_error; | |
3833 | } | |
3834 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
3835 | "2942 Handled SLI_CONFIG(hbd) rd, " | |
3836 | "ext_buf_cnt:%d\n", ext_buf_cnt); | |
3837 | } | |
3838 | ||
b76f2dc9 JS |
3839 | /* before dma descriptor setup */ |
3840 | lpfc_idiag_mbxacc_dump_bsg_mbox(phba, nemb_tp, mbox_rd, dma_mbox, | |
3841 | sta_pre_addr, dmabuf, ext_buf_cnt); | |
3842 | ||
7ad20aa9 JS |
3843 | /* reject non-embedded mailbox command with none external buffer */ |
3844 | if (ext_buf_cnt == 0) { | |
3845 | rc = -EPERM; | |
3846 | goto job_error; | |
3847 | } else if (ext_buf_cnt > 1) { | |
3848 | /* additional external read buffers */ | |
3849 | for (i = 1; i < ext_buf_cnt; i++) { | |
3850 | ext_dmabuf = lpfc_bsg_dma_page_alloc(phba); | |
3851 | if (!ext_dmabuf) { | |
3852 | rc = -ENOMEM; | |
3853 | goto job_error; | |
3854 | } | |
3855 | list_add_tail(&ext_dmabuf->list, | |
3856 | &phba->mbox_ext_buf_ctx.ext_dmabuf_list); | |
3857 | } | |
3858 | } | |
3859 | ||
3860 | /* bsg tracking structure */ | |
3861 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); | |
3862 | if (!dd_data) { | |
3863 | rc = -ENOMEM; | |
3864 | goto job_error; | |
3865 | } | |
3866 | ||
3867 | /* mailbox command structure for base driver */ | |
3868 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
3869 | if (!pmboxq) { | |
3870 | rc = -ENOMEM; | |
3871 | goto job_error; | |
3872 | } | |
3873 | memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); | |
3874 | ||
3875 | /* for the first external buffer */ | |
3876 | lpfc_bsg_sli_cfg_dma_desc_setup(phba, nemb_tp, 0, dmabuf, dmabuf); | |
3877 | ||
3878 | /* for the rest of external buffer descriptors if any */ | |
3879 | if (ext_buf_cnt > 1) { | |
3880 | ext_buf_index = 1; | |
3881 | list_for_each_entry_safe(curr_dmabuf, next_dmabuf, | |
3882 | &phba->mbox_ext_buf_ctx.ext_dmabuf_list, list) { | |
3883 | lpfc_bsg_sli_cfg_dma_desc_setup(phba, nemb_tp, | |
3884 | ext_buf_index, dmabuf, | |
3885 | curr_dmabuf); | |
3886 | ext_buf_index++; | |
3887 | } | |
3888 | } | |
3889 | ||
b76f2dc9 JS |
3890 | /* after dma descriptor setup */ |
3891 | lpfc_idiag_mbxacc_dump_bsg_mbox(phba, nemb_tp, mbox_rd, dma_mbox, | |
3892 | sta_pos_addr, dmabuf, ext_buf_cnt); | |
3893 | ||
7ad20aa9 JS |
3894 | /* construct base driver mbox command */ |
3895 | pmb = &pmboxq->u.mb; | |
3896 | pmbx = (uint8_t *)dmabuf->virt; | |
3897 | memcpy(pmb, pmbx, sizeof(*pmb)); | |
3898 | pmb->mbxOwner = OWN_HOST; | |
3899 | pmboxq->vport = phba->pport; | |
3900 | ||
3901 | /* multi-buffer handling context */ | |
3902 | phba->mbox_ext_buf_ctx.nembType = nemb_tp; | |
3903 | phba->mbox_ext_buf_ctx.mboxType = mbox_rd; | |
3904 | phba->mbox_ext_buf_ctx.numBuf = ext_buf_cnt; | |
3905 | phba->mbox_ext_buf_ctx.mbxTag = mbox_req->extMboxTag; | |
3906 | phba->mbox_ext_buf_ctx.seqNum = mbox_req->extSeqNum; | |
3907 | phba->mbox_ext_buf_ctx.mbx_dmabuf = dmabuf; | |
3908 | ||
3909 | /* callback for multi-buffer read mailbox command */ | |
3910 | pmboxq->mbox_cmpl = lpfc_bsg_issue_read_mbox_ext_cmpl; | |
3911 | ||
3912 | /* context fields to callback function */ | |
3913 | pmboxq->context1 = dd_data; | |
3914 | dd_data->type = TYPE_MBOX; | |
a33c4f7b | 3915 | dd_data->set_job = job; |
7ad20aa9 JS |
3916 | dd_data->context_un.mbox.pmboxq = pmboxq; |
3917 | dd_data->context_un.mbox.mb = (MAILBOX_t *)pmbx; | |
7ad20aa9 JS |
3918 | job->dd_data = dd_data; |
3919 | ||
3920 | /* state change */ | |
3921 | phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_PORT; | |
3922 | ||
026abb87 JS |
3923 | /* |
3924 | * Non-embedded mailbox subcommand data gets byte swapped here because | |
3925 | * the lower level driver code only does the first 64 mailbox words. | |
3926 | */ | |
3927 | if ((!bsg_bf_get(lpfc_mbox_hdr_emb, | |
3928 | &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr)) && | |
3929 | (nemb_tp == nemb_mse)) | |
3930 | lpfc_sli_pcimem_bcopy(&pmbx[sizeof(MAILBOX_t)], | |
3931 | &pmbx[sizeof(MAILBOX_t)], | |
3932 | sli_cfg_mbx->un.sli_config_emb0_subsys. | |
3933 | mse[0].buf_len); | |
3934 | ||
7ad20aa9 JS |
3935 | rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); |
3936 | if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY)) { | |
3937 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
3938 | "2947 Issued SLI_CONFIG ext-buffer " | |
3939 | "maibox command, rc:x%x\n", rc); | |
88a2cfbb | 3940 | return SLI_CONFIG_HANDLED; |
7ad20aa9 JS |
3941 | } |
3942 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, | |
3943 | "2948 Failed to issue SLI_CONFIG ext-buffer " | |
3944 | "maibox command, rc:x%x\n", rc); | |
3945 | rc = -EPIPE; | |
3946 | ||
3947 | job_error: | |
3948 | if (pmboxq) | |
3949 | mempool_free(pmboxq, phba->mbox_mem_pool); | |
3950 | lpfc_bsg_dma_page_list_free(phba, | |
3951 | &phba->mbox_ext_buf_ctx.ext_dmabuf_list); | |
3952 | kfree(dd_data); | |
3953 | phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_IDLE; | |
3954 | return rc; | |
3955 | } | |
3956 | ||
3957 | /** | |
3958 | * lpfc_bsg_sli_cfg_write_cmd_ext - sli_config non-embedded mailbox cmd write | |
3959 | * @phba: Pointer to HBA context object. | |
3960 | * @mb: Pointer to a BSG mailbox object. | |
3961 | * @dmabuff: Pointer to a DMA buffer descriptor. | |
3962 | * | |
3963 | * This routine performs SLI_CONFIG (0x9B) write mailbox command operation with | |
3964 | * non-embedded external bufffers. | |
3965 | **/ | |
3966 | static int | |
3967 | lpfc_bsg_sli_cfg_write_cmd_ext(struct lpfc_hba *phba, struct fc_bsg_job *job, | |
3968 | enum nemb_type nemb_tp, | |
3969 | struct lpfc_dmabuf *dmabuf) | |
3970 | { | |
3971 | struct dfc_mbox_req *mbox_req; | |
3972 | struct lpfc_sli_config_mbox *sli_cfg_mbx; | |
3973 | uint32_t ext_buf_cnt; | |
3974 | struct bsg_job_data *dd_data = NULL; | |
3975 | LPFC_MBOXQ_t *pmboxq = NULL; | |
3976 | MAILBOX_t *pmb; | |
3977 | uint8_t *mbx; | |
88a2cfbb | 3978 | int rc = SLI_CONFIG_NOT_HANDLED, i; |
7ad20aa9 JS |
3979 | |
3980 | mbox_req = | |
3981 | (struct dfc_mbox_req *)job->request->rqst_data.h_vendor.vendor_cmd; | |
3982 | ||
3983 | /* pointer to the start of mailbox command */ | |
3984 | sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt; | |
3985 | ||
3986 | if (nemb_tp == nemb_mse) { | |
3987 | ext_buf_cnt = bsg_bf_get(lpfc_mbox_hdr_mse_cnt, | |
3988 | &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr); | |
3989 | if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_MSE) { | |
3990 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, | |
026abb87 | 3991 | "2953 Failed SLI_CONFIG(mse) wr, " |
7ad20aa9 JS |
3992 | "ext_buf_cnt(%d) out of range(%d)\n", |
3993 | ext_buf_cnt, | |
3994 | LPFC_MBX_SLI_CONFIG_MAX_MSE); | |
3995 | return -ERANGE; | |
3996 | } | |
3997 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
3998 | "2949 Handled SLI_CONFIG(mse) wr, " | |
3999 | "ext_buf_cnt:%d\n", ext_buf_cnt); | |
4000 | } else { | |
4001 | /* sanity check on interface type for support */ | |
4002 | if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != | |
4003 | LPFC_SLI_INTF_IF_TYPE_2) | |
4004 | return -ENODEV; | |
4005 | /* nemb_tp == nemb_hbd */ | |
4006 | ext_buf_cnt = sli_cfg_mbx->un.sli_config_emb1_subsys.hbd_count; | |
4007 | if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_HBD) { | |
4008 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, | |
026abb87 | 4009 | "2954 Failed SLI_CONFIG(hbd) wr, " |
7ad20aa9 JS |
4010 | "ext_buf_cnt(%d) out of range(%d)\n", |
4011 | ext_buf_cnt, | |
4012 | LPFC_MBX_SLI_CONFIG_MAX_HBD); | |
4013 | return -ERANGE; | |
4014 | } | |
4015 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4016 | "2950 Handled SLI_CONFIG(hbd) wr, " | |
4017 | "ext_buf_cnt:%d\n", ext_buf_cnt); | |
4018 | } | |
4019 | ||
b76f2dc9 JS |
4020 | /* before dma buffer descriptor setup */ |
4021 | lpfc_idiag_mbxacc_dump_bsg_mbox(phba, nemb_tp, mbox_wr, dma_mbox, | |
4022 | sta_pre_addr, dmabuf, ext_buf_cnt); | |
4023 | ||
7ad20aa9 JS |
4024 | if (ext_buf_cnt == 0) |
4025 | return -EPERM; | |
4026 | ||
4027 | /* for the first external buffer */ | |
4028 | lpfc_bsg_sli_cfg_dma_desc_setup(phba, nemb_tp, 0, dmabuf, dmabuf); | |
4029 | ||
b76f2dc9 JS |
4030 | /* after dma descriptor setup */ |
4031 | lpfc_idiag_mbxacc_dump_bsg_mbox(phba, nemb_tp, mbox_wr, dma_mbox, | |
4032 | sta_pos_addr, dmabuf, ext_buf_cnt); | |
4033 | ||
7ad20aa9 JS |
4034 | /* log for looking forward */ |
4035 | for (i = 1; i < ext_buf_cnt; i++) { | |
4036 | if (nemb_tp == nemb_mse) | |
4037 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4038 | "2951 SLI_CONFIG(mse), buf[%d]-length:%d\n", | |
4039 | i, sli_cfg_mbx->un.sli_config_emb0_subsys. | |
4040 | mse[i].buf_len); | |
4041 | else | |
4042 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4043 | "2952 SLI_CONFIG(hbd), buf[%d]-length:%d\n", | |
4044 | i, bsg_bf_get(lpfc_mbox_sli_config_ecmn_hbd_len, | |
4045 | &sli_cfg_mbx->un.sli_config_emb1_subsys. | |
4046 | hbd[i])); | |
4047 | } | |
4048 | ||
4049 | /* multi-buffer handling context */ | |
4050 | phba->mbox_ext_buf_ctx.nembType = nemb_tp; | |
4051 | phba->mbox_ext_buf_ctx.mboxType = mbox_wr; | |
4052 | phba->mbox_ext_buf_ctx.numBuf = ext_buf_cnt; | |
4053 | phba->mbox_ext_buf_ctx.mbxTag = mbox_req->extMboxTag; | |
4054 | phba->mbox_ext_buf_ctx.seqNum = mbox_req->extSeqNum; | |
4055 | phba->mbox_ext_buf_ctx.mbx_dmabuf = dmabuf; | |
4056 | ||
4057 | if (ext_buf_cnt == 1) { | |
4058 | /* bsg tracking structure */ | |
4059 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); | |
4060 | if (!dd_data) { | |
4061 | rc = -ENOMEM; | |
4062 | goto job_error; | |
4063 | } | |
4064 | ||
4065 | /* mailbox command structure for base driver */ | |
4066 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
4067 | if (!pmboxq) { | |
4068 | rc = -ENOMEM; | |
4069 | goto job_error; | |
4070 | } | |
4071 | memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); | |
4072 | pmb = &pmboxq->u.mb; | |
4073 | mbx = (uint8_t *)dmabuf->virt; | |
4074 | memcpy(pmb, mbx, sizeof(*pmb)); | |
4075 | pmb->mbxOwner = OWN_HOST; | |
4076 | pmboxq->vport = phba->pport; | |
4077 | ||
4078 | /* callback for multi-buffer read mailbox command */ | |
4079 | pmboxq->mbox_cmpl = lpfc_bsg_issue_write_mbox_ext_cmpl; | |
4080 | ||
4081 | /* context fields to callback function */ | |
4082 | pmboxq->context1 = dd_data; | |
4083 | dd_data->type = TYPE_MBOX; | |
a33c4f7b | 4084 | dd_data->set_job = job; |
7ad20aa9 JS |
4085 | dd_data->context_un.mbox.pmboxq = pmboxq; |
4086 | dd_data->context_un.mbox.mb = (MAILBOX_t *)mbx; | |
7ad20aa9 JS |
4087 | job->dd_data = dd_data; |
4088 | ||
4089 | /* state change */ | |
7ad20aa9 | 4090 | |
a33c4f7b | 4091 | phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_PORT; |
7ad20aa9 JS |
4092 | rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); |
4093 | if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY)) { | |
4094 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4095 | "2955 Issued SLI_CONFIG ext-buffer " | |
4096 | "maibox command, rc:x%x\n", rc); | |
88a2cfbb | 4097 | return SLI_CONFIG_HANDLED; |
7ad20aa9 JS |
4098 | } |
4099 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, | |
4100 | "2956 Failed to issue SLI_CONFIG ext-buffer " | |
4101 | "maibox command, rc:x%x\n", rc); | |
4102 | rc = -EPIPE; | |
026abb87 | 4103 | goto job_error; |
7ad20aa9 JS |
4104 | } |
4105 | ||
88a2cfbb | 4106 | /* wait for additoinal external buffers */ |
a33c4f7b | 4107 | |
88a2cfbb JS |
4108 | job->reply->result = 0; |
4109 | job->job_done(job); | |
4110 | return SLI_CONFIG_HANDLED; | |
4111 | ||
7ad20aa9 JS |
4112 | job_error: |
4113 | if (pmboxq) | |
4114 | mempool_free(pmboxq, phba->mbox_mem_pool); | |
4115 | kfree(dd_data); | |
4116 | ||
4117 | return rc; | |
4118 | } | |
4119 | ||
4120 | /** | |
4121 | * lpfc_bsg_handle_sli_cfg_mbox - handle sli-cfg mailbox cmd with ext buffer | |
4122 | * @phba: Pointer to HBA context object. | |
4123 | * @mb: Pointer to a BSG mailbox object. | |
4124 | * @dmabuff: Pointer to a DMA buffer descriptor. | |
4125 | * | |
4126 | * This routine handles SLI_CONFIG (0x9B) mailbox command with non-embedded | |
4127 | * external bufffers, including both 0x9B with non-embedded MSEs and 0x9B | |
4128 | * with embedded sussystem 0x1 and opcodes with external HBDs. | |
4129 | **/ | |
4130 | static int | |
4131 | lpfc_bsg_handle_sli_cfg_mbox(struct lpfc_hba *phba, struct fc_bsg_job *job, | |
4132 | struct lpfc_dmabuf *dmabuf) | |
4133 | { | |
4134 | struct lpfc_sli_config_mbox *sli_cfg_mbx; | |
4135 | uint32_t subsys; | |
4136 | uint32_t opcode; | |
4137 | int rc = SLI_CONFIG_NOT_HANDLED; | |
4138 | ||
026abb87 | 4139 | /* state change on new multi-buffer pass-through mailbox command */ |
7ad20aa9 JS |
4140 | phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_HOST; |
4141 | ||
4142 | sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt; | |
4143 | ||
4144 | if (!bsg_bf_get(lpfc_mbox_hdr_emb, | |
4145 | &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr)) { | |
4146 | subsys = bsg_bf_get(lpfc_emb0_subcmnd_subsys, | |
4147 | &sli_cfg_mbx->un.sli_config_emb0_subsys); | |
4148 | opcode = bsg_bf_get(lpfc_emb0_subcmnd_opcode, | |
4149 | &sli_cfg_mbx->un.sli_config_emb0_subsys); | |
4150 | if (subsys == SLI_CONFIG_SUBSYS_FCOE) { | |
4151 | switch (opcode) { | |
4152 | case FCOE_OPCODE_READ_FCF: | |
2a2719d3 | 4153 | case FCOE_OPCODE_GET_DPORT_RESULTS: |
7ad20aa9 JS |
4154 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
4155 | "2957 Handled SLI_CONFIG " | |
4156 | "subsys_fcoe, opcode:x%x\n", | |
4157 | opcode); | |
4158 | rc = lpfc_bsg_sli_cfg_read_cmd_ext(phba, job, | |
4159 | nemb_mse, dmabuf); | |
4160 | break; | |
4161 | case FCOE_OPCODE_ADD_FCF: | |
2a2719d3 JS |
4162 | case FCOE_OPCODE_SET_DPORT_MODE: |
4163 | case LPFC_MBOX_OPCODE_FCOE_LINK_DIAG_STATE: | |
7ad20aa9 JS |
4164 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
4165 | "2958 Handled SLI_CONFIG " | |
4166 | "subsys_fcoe, opcode:x%x\n", | |
4167 | opcode); | |
4168 | rc = lpfc_bsg_sli_cfg_write_cmd_ext(phba, job, | |
4169 | nemb_mse, dmabuf); | |
4170 | break; | |
4171 | default: | |
4172 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
026abb87 | 4173 | "2959 Reject SLI_CONFIG " |
7ad20aa9 JS |
4174 | "subsys_fcoe, opcode:x%x\n", |
4175 | opcode); | |
026abb87 JS |
4176 | rc = -EPERM; |
4177 | break; | |
4178 | } | |
4179 | } else if (subsys == SLI_CONFIG_SUBSYS_COMN) { | |
4180 | switch (opcode) { | |
4181 | case COMN_OPCODE_GET_CNTL_ADDL_ATTRIBUTES: | |
b99570dd | 4182 | case COMN_OPCODE_GET_CNTL_ATTRIBUTES: |
c6377970 | 4183 | case COMN_OPCODE_GET_PROFILE_CONFIG: |
026abb87 JS |
4184 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
4185 | "3106 Handled SLI_CONFIG " | |
6b5151fd | 4186 | "subsys_comn, opcode:x%x\n", |
026abb87 JS |
4187 | opcode); |
4188 | rc = lpfc_bsg_sli_cfg_read_cmd_ext(phba, job, | |
4189 | nemb_mse, dmabuf); | |
4190 | break; | |
4191 | default: | |
4192 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4193 | "3107 Reject SLI_CONFIG " | |
6b5151fd | 4194 | "subsys_comn, opcode:x%x\n", |
026abb87 JS |
4195 | opcode); |
4196 | rc = -EPERM; | |
7ad20aa9 JS |
4197 | break; |
4198 | } | |
4199 | } else { | |
4200 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
026abb87 | 4201 | "2977 Reject SLI_CONFIG " |
7ad20aa9 JS |
4202 | "subsys:x%d, opcode:x%x\n", |
4203 | subsys, opcode); | |
026abb87 | 4204 | rc = -EPERM; |
7ad20aa9 JS |
4205 | } |
4206 | } else { | |
4207 | subsys = bsg_bf_get(lpfc_emb1_subcmnd_subsys, | |
4208 | &sli_cfg_mbx->un.sli_config_emb1_subsys); | |
4209 | opcode = bsg_bf_get(lpfc_emb1_subcmnd_opcode, | |
4210 | &sli_cfg_mbx->un.sli_config_emb1_subsys); | |
4211 | if (subsys == SLI_CONFIG_SUBSYS_COMN) { | |
4212 | switch (opcode) { | |
4213 | case COMN_OPCODE_READ_OBJECT: | |
4214 | case COMN_OPCODE_READ_OBJECT_LIST: | |
4215 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4216 | "2960 Handled SLI_CONFIG " | |
4217 | "subsys_comn, opcode:x%x\n", | |
4218 | opcode); | |
4219 | rc = lpfc_bsg_sli_cfg_read_cmd_ext(phba, job, | |
4220 | nemb_hbd, dmabuf); | |
4221 | break; | |
4222 | case COMN_OPCODE_WRITE_OBJECT: | |
4223 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4224 | "2961 Handled SLI_CONFIG " | |
4225 | "subsys_comn, opcode:x%x\n", | |
4226 | opcode); | |
4227 | rc = lpfc_bsg_sli_cfg_write_cmd_ext(phba, job, | |
4228 | nemb_hbd, dmabuf); | |
4229 | break; | |
4230 | default: | |
4231 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4232 | "2962 Not handled SLI_CONFIG " | |
4233 | "subsys_comn, opcode:x%x\n", | |
4234 | opcode); | |
4235 | rc = SLI_CONFIG_NOT_HANDLED; | |
4236 | break; | |
4237 | } | |
4238 | } else { | |
4239 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
026abb87 | 4240 | "2978 Not handled SLI_CONFIG " |
7ad20aa9 JS |
4241 | "subsys:x%d, opcode:x%x\n", |
4242 | subsys, opcode); | |
4243 | rc = SLI_CONFIG_NOT_HANDLED; | |
4244 | } | |
4245 | } | |
026abb87 JS |
4246 | |
4247 | /* state reset on not handled new multi-buffer mailbox command */ | |
4248 | if (rc != SLI_CONFIG_HANDLED) | |
4249 | phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_IDLE; | |
4250 | ||
7ad20aa9 JS |
4251 | return rc; |
4252 | } | |
4253 | ||
4254 | /** | |
4255 | * lpfc_bsg_mbox_ext_abort_req - request to abort mbox command with ext buffers | |
4256 | * @phba: Pointer to HBA context object. | |
4257 | * | |
4258 | * This routine is for requesting to abort a pass-through mailbox command with | |
4259 | * multiple external buffers due to error condition. | |
4260 | **/ | |
4261 | static void | |
4262 | lpfc_bsg_mbox_ext_abort(struct lpfc_hba *phba) | |
4263 | { | |
4264 | if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_PORT) | |
4265 | phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_ABTS; | |
4266 | else | |
4267 | lpfc_bsg_mbox_ext_session_reset(phba); | |
4268 | return; | |
4269 | } | |
4270 | ||
4271 | /** | |
4272 | * lpfc_bsg_read_ebuf_get - get the next mailbox read external buffer | |
4273 | * @phba: Pointer to HBA context object. | |
4274 | * @dmabuf: Pointer to a DMA buffer descriptor. | |
4275 | * | |
4276 | * This routine extracts the next mailbox read external buffer back to | |
4277 | * user space through BSG. | |
4278 | **/ | |
4279 | static int | |
4280 | lpfc_bsg_read_ebuf_get(struct lpfc_hba *phba, struct fc_bsg_job *job) | |
4281 | { | |
4282 | struct lpfc_sli_config_mbox *sli_cfg_mbx; | |
4283 | struct lpfc_dmabuf *dmabuf; | |
4284 | uint8_t *pbuf; | |
4285 | uint32_t size; | |
4286 | uint32_t index; | |
4287 | ||
4288 | index = phba->mbox_ext_buf_ctx.seqNum; | |
4289 | phba->mbox_ext_buf_ctx.seqNum++; | |
4290 | ||
4291 | sli_cfg_mbx = (struct lpfc_sli_config_mbox *) | |
4292 | phba->mbox_ext_buf_ctx.mbx_dmabuf->virt; | |
4293 | ||
4294 | if (phba->mbox_ext_buf_ctx.nembType == nemb_mse) { | |
4295 | size = bsg_bf_get(lpfc_mbox_sli_config_mse_len, | |
4296 | &sli_cfg_mbx->un.sli_config_emb0_subsys.mse[index]); | |
4297 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4298 | "2963 SLI_CONFIG (mse) ext-buffer rd get " | |
4299 | "buffer[%d], size:%d\n", index, size); | |
4300 | } else { | |
4301 | size = bsg_bf_get(lpfc_mbox_sli_config_ecmn_hbd_len, | |
4302 | &sli_cfg_mbx->un.sli_config_emb1_subsys.hbd[index]); | |
4303 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4304 | "2964 SLI_CONFIG (hbd) ext-buffer rd get " | |
4305 | "buffer[%d], size:%d\n", index, size); | |
4306 | } | |
4307 | if (list_empty(&phba->mbox_ext_buf_ctx.ext_dmabuf_list)) | |
4308 | return -EPIPE; | |
4309 | dmabuf = list_first_entry(&phba->mbox_ext_buf_ctx.ext_dmabuf_list, | |
4310 | struct lpfc_dmabuf, list); | |
4311 | list_del_init(&dmabuf->list); | |
b76f2dc9 JS |
4312 | |
4313 | /* after dma buffer descriptor setup */ | |
4314 | lpfc_idiag_mbxacc_dump_bsg_mbox(phba, phba->mbox_ext_buf_ctx.nembType, | |
4315 | mbox_rd, dma_ebuf, sta_pos_addr, | |
4316 | dmabuf, index); | |
4317 | ||
7ad20aa9 JS |
4318 | pbuf = (uint8_t *)dmabuf->virt; |
4319 | job->reply->reply_payload_rcv_len = | |
4320 | sg_copy_from_buffer(job->reply_payload.sg_list, | |
4321 | job->reply_payload.sg_cnt, | |
4322 | pbuf, size); | |
4323 | ||
4324 | lpfc_bsg_dma_page_free(phba, dmabuf); | |
4325 | ||
4326 | if (phba->mbox_ext_buf_ctx.seqNum == phba->mbox_ext_buf_ctx.numBuf) { | |
4327 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4328 | "2965 SLI_CONFIG (hbd) ext-buffer rd mbox " | |
4329 | "command session done\n"); | |
4330 | lpfc_bsg_mbox_ext_session_reset(phba); | |
4331 | } | |
4332 | ||
4333 | job->reply->result = 0; | |
4334 | job->job_done(job); | |
4335 | ||
4336 | return SLI_CONFIG_HANDLED; | |
4337 | } | |
4338 | ||
4339 | /** | |
4340 | * lpfc_bsg_write_ebuf_set - set the next mailbox write external buffer | |
4341 | * @phba: Pointer to HBA context object. | |
4342 | * @dmabuf: Pointer to a DMA buffer descriptor. | |
4343 | * | |
4344 | * This routine sets up the next mailbox read external buffer obtained | |
4345 | * from user space through BSG. | |
4346 | **/ | |
4347 | static int | |
4348 | lpfc_bsg_write_ebuf_set(struct lpfc_hba *phba, struct fc_bsg_job *job, | |
4349 | struct lpfc_dmabuf *dmabuf) | |
4350 | { | |
4351 | struct lpfc_sli_config_mbox *sli_cfg_mbx; | |
4352 | struct bsg_job_data *dd_data = NULL; | |
4353 | LPFC_MBOXQ_t *pmboxq = NULL; | |
4354 | MAILBOX_t *pmb; | |
4355 | enum nemb_type nemb_tp; | |
4356 | uint8_t *pbuf; | |
4357 | uint32_t size; | |
4358 | uint32_t index; | |
4359 | int rc; | |
4360 | ||
4361 | index = phba->mbox_ext_buf_ctx.seqNum; | |
4362 | phba->mbox_ext_buf_ctx.seqNum++; | |
4363 | nemb_tp = phba->mbox_ext_buf_ctx.nembType; | |
4364 | ||
4365 | sli_cfg_mbx = (struct lpfc_sli_config_mbox *) | |
4366 | phba->mbox_ext_buf_ctx.mbx_dmabuf->virt; | |
4367 | ||
4368 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); | |
4369 | if (!dd_data) { | |
4370 | rc = -ENOMEM; | |
4371 | goto job_error; | |
4372 | } | |
4373 | ||
4374 | pbuf = (uint8_t *)dmabuf->virt; | |
4375 | size = job->request_payload.payload_len; | |
4376 | sg_copy_to_buffer(job->request_payload.sg_list, | |
4377 | job->request_payload.sg_cnt, | |
4378 | pbuf, size); | |
4379 | ||
4380 | if (phba->mbox_ext_buf_ctx.nembType == nemb_mse) { | |
4381 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4382 | "2966 SLI_CONFIG (mse) ext-buffer wr set " | |
4383 | "buffer[%d], size:%d\n", | |
4384 | phba->mbox_ext_buf_ctx.seqNum, size); | |
4385 | ||
4386 | } else { | |
4387 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4388 | "2967 SLI_CONFIG (hbd) ext-buffer wr set " | |
4389 | "buffer[%d], size:%d\n", | |
4390 | phba->mbox_ext_buf_ctx.seqNum, size); | |
4391 | ||
4392 | } | |
4393 | ||
4394 | /* set up external buffer descriptor and add to external buffer list */ | |
4395 | lpfc_bsg_sli_cfg_dma_desc_setup(phba, nemb_tp, index, | |
4396 | phba->mbox_ext_buf_ctx.mbx_dmabuf, | |
4397 | dmabuf); | |
4398 | list_add_tail(&dmabuf->list, &phba->mbox_ext_buf_ctx.ext_dmabuf_list); | |
4399 | ||
b76f2dc9 JS |
4400 | /* after write dma buffer */ |
4401 | lpfc_idiag_mbxacc_dump_bsg_mbox(phba, phba->mbox_ext_buf_ctx.nembType, | |
4402 | mbox_wr, dma_ebuf, sta_pos_addr, | |
4403 | dmabuf, index); | |
4404 | ||
7ad20aa9 JS |
4405 | if (phba->mbox_ext_buf_ctx.seqNum == phba->mbox_ext_buf_ctx.numBuf) { |
4406 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4407 | "2968 SLI_CONFIG ext-buffer wr all %d " | |
4408 | "ebuffers received\n", | |
4409 | phba->mbox_ext_buf_ctx.numBuf); | |
4410 | /* mailbox command structure for base driver */ | |
4411 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
4412 | if (!pmboxq) { | |
4413 | rc = -ENOMEM; | |
4414 | goto job_error; | |
4415 | } | |
4416 | memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); | |
4417 | pbuf = (uint8_t *)phba->mbox_ext_buf_ctx.mbx_dmabuf->virt; | |
4418 | pmb = &pmboxq->u.mb; | |
4419 | memcpy(pmb, pbuf, sizeof(*pmb)); | |
4420 | pmb->mbxOwner = OWN_HOST; | |
4421 | pmboxq->vport = phba->pport; | |
4422 | ||
4423 | /* callback for multi-buffer write mailbox command */ | |
4424 | pmboxq->mbox_cmpl = lpfc_bsg_issue_write_mbox_ext_cmpl; | |
4425 | ||
4426 | /* context fields to callback function */ | |
4427 | pmboxq->context1 = dd_data; | |
4428 | dd_data->type = TYPE_MBOX; | |
a33c4f7b | 4429 | dd_data->set_job = job; |
7ad20aa9 JS |
4430 | dd_data->context_un.mbox.pmboxq = pmboxq; |
4431 | dd_data->context_un.mbox.mb = (MAILBOX_t *)pbuf; | |
7ad20aa9 JS |
4432 | job->dd_data = dd_data; |
4433 | ||
4434 | /* state change */ | |
4435 | phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_PORT; | |
4436 | ||
4437 | rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); | |
4438 | if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY)) { | |
4439 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4440 | "2969 Issued SLI_CONFIG ext-buffer " | |
4441 | "maibox command, rc:x%x\n", rc); | |
88a2cfbb | 4442 | return SLI_CONFIG_HANDLED; |
7ad20aa9 JS |
4443 | } |
4444 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, | |
4445 | "2970 Failed to issue SLI_CONFIG ext-buffer " | |
4446 | "maibox command, rc:x%x\n", rc); | |
4447 | rc = -EPIPE; | |
4448 | goto job_error; | |
4449 | } | |
4450 | ||
4451 | /* wait for additoinal external buffers */ | |
4452 | job->reply->result = 0; | |
4453 | job->job_done(job); | |
4454 | return SLI_CONFIG_HANDLED; | |
4455 | ||
4456 | job_error: | |
4457 | lpfc_bsg_dma_page_free(phba, dmabuf); | |
4458 | kfree(dd_data); | |
4459 | ||
4460 | return rc; | |
4461 | } | |
4462 | ||
4463 | /** | |
4464 | * lpfc_bsg_handle_sli_cfg_ebuf - handle ext buffer with sli-cfg mailbox cmd | |
4465 | * @phba: Pointer to HBA context object. | |
4466 | * @mb: Pointer to a BSG mailbox object. | |
4467 | * @dmabuff: Pointer to a DMA buffer descriptor. | |
4468 | * | |
4469 | * This routine handles the external buffer with SLI_CONFIG (0x9B) mailbox | |
4470 | * command with multiple non-embedded external buffers. | |
4471 | **/ | |
4472 | static int | |
4473 | lpfc_bsg_handle_sli_cfg_ebuf(struct lpfc_hba *phba, struct fc_bsg_job *job, | |
4474 | struct lpfc_dmabuf *dmabuf) | |
4475 | { | |
4476 | int rc; | |
4477 | ||
4478 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4479 | "2971 SLI_CONFIG buffer (type:x%x)\n", | |
4480 | phba->mbox_ext_buf_ctx.mboxType); | |
4481 | ||
4482 | if (phba->mbox_ext_buf_ctx.mboxType == mbox_rd) { | |
4483 | if (phba->mbox_ext_buf_ctx.state != LPFC_BSG_MBOX_DONE) { | |
4484 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, | |
4485 | "2972 SLI_CONFIG rd buffer state " | |
4486 | "mismatch:x%x\n", | |
4487 | phba->mbox_ext_buf_ctx.state); | |
4488 | lpfc_bsg_mbox_ext_abort(phba); | |
4489 | return -EPIPE; | |
4490 | } | |
4491 | rc = lpfc_bsg_read_ebuf_get(phba, job); | |
4492 | if (rc == SLI_CONFIG_HANDLED) | |
4493 | lpfc_bsg_dma_page_free(phba, dmabuf); | |
4494 | } else { /* phba->mbox_ext_buf_ctx.mboxType == mbox_wr */ | |
4495 | if (phba->mbox_ext_buf_ctx.state != LPFC_BSG_MBOX_HOST) { | |
4496 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, | |
4497 | "2973 SLI_CONFIG wr buffer state " | |
4498 | "mismatch:x%x\n", | |
4499 | phba->mbox_ext_buf_ctx.state); | |
4500 | lpfc_bsg_mbox_ext_abort(phba); | |
4501 | return -EPIPE; | |
4502 | } | |
4503 | rc = lpfc_bsg_write_ebuf_set(phba, job, dmabuf); | |
7a470277 | 4504 | } |
7ad20aa9 | 4505 | return rc; |
3b5dd52a JS |
4506 | } |
4507 | ||
4508 | /** | |
7ad20aa9 | 4509 | * lpfc_bsg_handle_sli_cfg_ext - handle sli-cfg mailbox with external buffer |
3b5dd52a | 4510 | * @phba: Pointer to HBA context object. |
7ad20aa9 JS |
4511 | * @mb: Pointer to a BSG mailbox object. |
4512 | * @dmabuff: Pointer to a DMA buffer descriptor. | |
3b5dd52a | 4513 | * |
7ad20aa9 JS |
4514 | * This routine checkes and handles non-embedded multi-buffer SLI_CONFIG |
4515 | * (0x9B) mailbox commands and external buffers. | |
3b5dd52a | 4516 | **/ |
7ad20aa9 JS |
4517 | static int |
4518 | lpfc_bsg_handle_sli_cfg_ext(struct lpfc_hba *phba, struct fc_bsg_job *job, | |
4519 | struct lpfc_dmabuf *dmabuf) | |
3b5dd52a | 4520 | { |
7ad20aa9 | 4521 | struct dfc_mbox_req *mbox_req; |
88a2cfbb | 4522 | int rc = SLI_CONFIG_NOT_HANDLED; |
7ad20aa9 JS |
4523 | |
4524 | mbox_req = | |
4525 | (struct dfc_mbox_req *)job->request->rqst_data.h_vendor.vendor_cmd; | |
4526 | ||
4527 | /* mbox command with/without single external buffer */ | |
4528 | if (mbox_req->extMboxTag == 0 && mbox_req->extSeqNum == 0) | |
88a2cfbb | 4529 | return rc; |
7ad20aa9 JS |
4530 | |
4531 | /* mbox command and first external buffer */ | |
4532 | if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_IDLE) { | |
4533 | if (mbox_req->extSeqNum == 1) { | |
4534 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4535 | "2974 SLI_CONFIG mailbox: tag:%d, " | |
4536 | "seq:%d\n", mbox_req->extMboxTag, | |
4537 | mbox_req->extSeqNum); | |
4538 | rc = lpfc_bsg_handle_sli_cfg_mbox(phba, job, dmabuf); | |
4539 | return rc; | |
4540 | } else | |
4541 | goto sli_cfg_ext_error; | |
3b5dd52a JS |
4542 | } |
4543 | ||
7ad20aa9 JS |
4544 | /* |
4545 | * handle additional external buffers | |
4546 | */ | |
4547 | ||
4548 | /* check broken pipe conditions */ | |
4549 | if (mbox_req->extMboxTag != phba->mbox_ext_buf_ctx.mbxTag) | |
4550 | goto sli_cfg_ext_error; | |
4551 | if (mbox_req->extSeqNum > phba->mbox_ext_buf_ctx.numBuf) | |
4552 | goto sli_cfg_ext_error; | |
4553 | if (mbox_req->extSeqNum != phba->mbox_ext_buf_ctx.seqNum + 1) | |
4554 | goto sli_cfg_ext_error; | |
4555 | ||
4556 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4557 | "2975 SLI_CONFIG mailbox external buffer: " | |
4558 | "extSta:x%x, tag:%d, seq:%d\n", | |
4559 | phba->mbox_ext_buf_ctx.state, mbox_req->extMboxTag, | |
4560 | mbox_req->extSeqNum); | |
4561 | rc = lpfc_bsg_handle_sli_cfg_ebuf(phba, job, dmabuf); | |
4562 | return rc; | |
4563 | ||
4564 | sli_cfg_ext_error: | |
4565 | /* all other cases, broken pipe */ | |
4566 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, | |
4567 | "2976 SLI_CONFIG mailbox broken pipe: " | |
4568 | "ctxSta:x%x, ctxNumBuf:%d " | |
4569 | "ctxTag:%d, ctxSeq:%d, tag:%d, seq:%d\n", | |
4570 | phba->mbox_ext_buf_ctx.state, | |
4571 | phba->mbox_ext_buf_ctx.numBuf, | |
4572 | phba->mbox_ext_buf_ctx.mbxTag, | |
4573 | phba->mbox_ext_buf_ctx.seqNum, | |
4574 | mbox_req->extMboxTag, mbox_req->extSeqNum); | |
4575 | ||
4576 | lpfc_bsg_mbox_ext_session_reset(phba); | |
4577 | ||
4578 | return -EPIPE; | |
3b5dd52a JS |
4579 | } |
4580 | ||
4581 | /** | |
4582 | * lpfc_bsg_issue_mbox - issues a mailbox command on behalf of an app | |
4583 | * @phba: Pointer to HBA context object. | |
4584 | * @mb: Pointer to a mailbox object. | |
4585 | * @vport: Pointer to a vport object. | |
4586 | * | |
4587 | * Allocate a tracking object, mailbox command memory, get a mailbox | |
4588 | * from the mailbox pool, copy the caller mailbox command. | |
4589 | * | |
4590 | * If offline and the sli is active we need to poll for the command (port is | |
4591 | * being reset) and com-plete the job, otherwise issue the mailbox command and | |
4592 | * let our completion handler finish the command. | |
4593 | **/ | |
a2fc4aef | 4594 | static int |
3b5dd52a JS |
4595 | lpfc_bsg_issue_mbox(struct lpfc_hba *phba, struct fc_bsg_job *job, |
4596 | struct lpfc_vport *vport) | |
4597 | { | |
7a470277 JS |
4598 | LPFC_MBOXQ_t *pmboxq = NULL; /* internal mailbox queue */ |
4599 | MAILBOX_t *pmb; /* shortcut to the pmboxq mailbox */ | |
4600 | /* a 4k buffer to hold the mb and extended data from/to the bsg */ | |
7ad20aa9 | 4601 | uint8_t *pmbx = NULL; |
7a470277 | 4602 | struct bsg_job_data *dd_data = NULL; /* bsg data tracking structure */ |
7ad20aa9 JS |
4603 | struct lpfc_dmabuf *dmabuf = NULL; |
4604 | struct dfc_mbox_req *mbox_req; | |
b6e3b9c6 JS |
4605 | struct READ_EVENT_LOG_VAR *rdEventLog; |
4606 | uint32_t transmit_length, receive_length, mode; | |
7ad20aa9 | 4607 | struct lpfc_mbx_sli4_config *sli4_config; |
b6e3b9c6 JS |
4608 | struct lpfc_mbx_nembed_cmd *nembed_sge; |
4609 | struct mbox_header *header; | |
4610 | struct ulp_bde64 *bde; | |
7a470277 | 4611 | uint8_t *ext = NULL; |
3b5dd52a | 4612 | int rc = 0; |
7a470277 | 4613 | uint8_t *from; |
7ad20aa9 JS |
4614 | uint32_t size; |
4615 | ||
7a470277 JS |
4616 | /* in case no data is transferred */ |
4617 | job->reply->reply_payload_rcv_len = 0; | |
4618 | ||
b6e3b9c6 JS |
4619 | /* sanity check to protect driver */ |
4620 | if (job->reply_payload.payload_len > BSG_MBOX_SIZE || | |
4621 | job->request_payload.payload_len > BSG_MBOX_SIZE) { | |
4622 | rc = -ERANGE; | |
4623 | goto job_done; | |
4624 | } | |
4625 | ||
7ad20aa9 JS |
4626 | /* |
4627 | * Don't allow mailbox commands to be sent when blocked or when in | |
4628 | * the middle of discovery | |
4629 | */ | |
4630 | if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) { | |
4631 | rc = -EAGAIN; | |
4632 | goto job_done; | |
4633 | } | |
4634 | ||
4635 | mbox_req = | |
4636 | (struct dfc_mbox_req *)job->request->rqst_data.h_vendor.vendor_cmd; | |
4637 | ||
7a470277 | 4638 | /* check if requested extended data lengths are valid */ |
b6e3b9c6 JS |
4639 | if ((mbox_req->inExtWLen > BSG_MBOX_SIZE/sizeof(uint32_t)) || |
4640 | (mbox_req->outExtWLen > BSG_MBOX_SIZE/sizeof(uint32_t))) { | |
7a470277 JS |
4641 | rc = -ERANGE; |
4642 | goto job_done; | |
4643 | } | |
3b5dd52a | 4644 | |
7ad20aa9 JS |
4645 | dmabuf = lpfc_bsg_dma_page_alloc(phba); |
4646 | if (!dmabuf || !dmabuf->virt) { | |
4647 | rc = -ENOMEM; | |
4648 | goto job_done; | |
4649 | } | |
4650 | ||
4651 | /* Get the mailbox command or external buffer from BSG */ | |
4652 | pmbx = (uint8_t *)dmabuf->virt; | |
4653 | size = job->request_payload.payload_len; | |
4654 | sg_copy_to_buffer(job->request_payload.sg_list, | |
4655 | job->request_payload.sg_cnt, pmbx, size); | |
4656 | ||
4657 | /* Handle possible SLI_CONFIG with non-embedded payloads */ | |
4658 | if (phba->sli_rev == LPFC_SLI_REV4) { | |
4659 | rc = lpfc_bsg_handle_sli_cfg_ext(phba, job, dmabuf); | |
4660 | if (rc == SLI_CONFIG_HANDLED) | |
4661 | goto job_cont; | |
4662 | if (rc) | |
4663 | goto job_done; | |
4664 | /* SLI_CONFIG_NOT_HANDLED for other mailbox commands */ | |
4665 | } | |
4666 | ||
4667 | rc = lpfc_bsg_check_cmd_access(phba, (MAILBOX_t *)pmbx, vport); | |
4668 | if (rc != 0) | |
4669 | goto job_done; /* must be negative */ | |
4670 | ||
3b5dd52a JS |
4671 | /* allocate our bsg tracking structure */ |
4672 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); | |
4673 | if (!dd_data) { | |
4674 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
4675 | "2727 Failed allocation of dd_data\n"); | |
7a470277 JS |
4676 | rc = -ENOMEM; |
4677 | goto job_done; | |
3b5dd52a JS |
4678 | } |
4679 | ||
3b5dd52a JS |
4680 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
4681 | if (!pmboxq) { | |
7a470277 JS |
4682 | rc = -ENOMEM; |
4683 | goto job_done; | |
3b5dd52a | 4684 | } |
7a470277 | 4685 | memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); |
3b5dd52a | 4686 | |
3b5dd52a | 4687 | pmb = &pmboxq->u.mb; |
7ad20aa9 | 4688 | memcpy(pmb, pmbx, sizeof(*pmb)); |
3b5dd52a | 4689 | pmb->mbxOwner = OWN_HOST; |
3b5dd52a JS |
4690 | pmboxq->vport = vport; |
4691 | ||
c7495937 JS |
4692 | /* If HBA encountered an error attention, allow only DUMP |
4693 | * or RESTART mailbox commands until the HBA is restarted. | |
4694 | */ | |
4695 | if (phba->pport->stopped && | |
4696 | pmb->mbxCommand != MBX_DUMP_MEMORY && | |
4697 | pmb->mbxCommand != MBX_RESTART && | |
4698 | pmb->mbxCommand != MBX_WRITE_VPARMS && | |
4699 | pmb->mbxCommand != MBX_WRITE_WWN) | |
4700 | lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, | |
4701 | "2797 mbox: Issued mailbox cmd " | |
4702 | "0x%x while in stopped state.\n", | |
4703 | pmb->mbxCommand); | |
4704 | ||
7a470277 | 4705 | /* extended mailbox commands will need an extended buffer */ |
c7495937 | 4706 | if (mbox_req->inExtWLen || mbox_req->outExtWLen) { |
026abb87 JS |
4707 | from = pmbx; |
4708 | ext = from + sizeof(MAILBOX_t); | |
7a470277 JS |
4709 | pmboxq->context2 = ext; |
4710 | pmboxq->in_ext_byte_len = | |
4711 | mbox_req->inExtWLen * sizeof(uint32_t); | |
4712 | pmboxq->out_ext_byte_len = | |
c7495937 | 4713 | mbox_req->outExtWLen * sizeof(uint32_t); |
7a470277 JS |
4714 | pmboxq->mbox_offset_word = mbox_req->mbOffset; |
4715 | } | |
4716 | ||
4717 | /* biu diag will need a kernel buffer to transfer the data | |
4718 | * allocate our own buffer and setup the mailbox command to | |
4719 | * use ours | |
4720 | */ | |
4721 | if (pmb->mbxCommand == MBX_RUN_BIU_DIAG64) { | |
b6e3b9c6 JS |
4722 | transmit_length = pmb->un.varWords[1]; |
4723 | receive_length = pmb->un.varWords[4]; | |
c7495937 JS |
4724 | /* transmit length cannot be greater than receive length or |
4725 | * mailbox extension size | |
4726 | */ | |
4727 | if ((transmit_length > receive_length) || | |
88a2cfbb | 4728 | (transmit_length > BSG_MBOX_SIZE - sizeof(MAILBOX_t))) { |
c7495937 JS |
4729 | rc = -ERANGE; |
4730 | goto job_done; | |
4731 | } | |
7a470277 | 4732 | pmb->un.varBIUdiag.un.s2.xmit_bde64.addrHigh = |
7ad20aa9 | 4733 | putPaddrHigh(dmabuf->phys + sizeof(MAILBOX_t)); |
7a470277 | 4734 | pmb->un.varBIUdiag.un.s2.xmit_bde64.addrLow = |
7ad20aa9 | 4735 | putPaddrLow(dmabuf->phys + sizeof(MAILBOX_t)); |
7a470277 JS |
4736 | |
4737 | pmb->un.varBIUdiag.un.s2.rcv_bde64.addrHigh = | |
7ad20aa9 JS |
4738 | putPaddrHigh(dmabuf->phys + sizeof(MAILBOX_t) |
4739 | + pmb->un.varBIUdiag.un.s2.xmit_bde64.tus.f.bdeSize); | |
7a470277 | 4740 | pmb->un.varBIUdiag.un.s2.rcv_bde64.addrLow = |
7ad20aa9 JS |
4741 | putPaddrLow(dmabuf->phys + sizeof(MAILBOX_t) |
4742 | + pmb->un.varBIUdiag.un.s2.xmit_bde64.tus.f.bdeSize); | |
c7495937 | 4743 | } else if (pmb->mbxCommand == MBX_READ_EVENT_LOG) { |
b6e3b9c6 JS |
4744 | rdEventLog = &pmb->un.varRdEventLog; |
4745 | receive_length = rdEventLog->rcv_bde64.tus.f.bdeSize; | |
4746 | mode = bf_get(lpfc_event_log, rdEventLog); | |
c7495937 JS |
4747 | |
4748 | /* receive length cannot be greater than mailbox | |
4749 | * extension size | |
4750 | */ | |
88a2cfbb | 4751 | if (receive_length > BSG_MBOX_SIZE - sizeof(MAILBOX_t)) { |
c7495937 JS |
4752 | rc = -ERANGE; |
4753 | goto job_done; | |
4754 | } | |
4755 | ||
4756 | /* mode zero uses a bde like biu diags command */ | |
4757 | if (mode == 0) { | |
7ad20aa9 JS |
4758 | pmb->un.varWords[3] = putPaddrLow(dmabuf->phys |
4759 | + sizeof(MAILBOX_t)); | |
4760 | pmb->un.varWords[4] = putPaddrHigh(dmabuf->phys | |
4761 | + sizeof(MAILBOX_t)); | |
c7495937 JS |
4762 | } |
4763 | } else if (phba->sli_rev == LPFC_SLI_REV4) { | |
3ef6d24c JS |
4764 | /* Let type 4 (well known data) through because the data is |
4765 | * returned in varwords[4-8] | |
4766 | * otherwise check the recieve length and fetch the buffer addr | |
4767 | */ | |
4768 | if ((pmb->mbxCommand == MBX_DUMP_MEMORY) && | |
4769 | (pmb->un.varDmp.type != DMP_WELL_KNOWN)) { | |
c7495937 JS |
4770 | /* rebuild the command for sli4 using our own buffers |
4771 | * like we do for biu diags | |
4772 | */ | |
b6e3b9c6 | 4773 | receive_length = pmb->un.varWords[2]; |
c7495937 JS |
4774 | /* receive length cannot be greater than mailbox |
4775 | * extension size | |
4776 | */ | |
7ad20aa9 | 4777 | if (receive_length == 0) { |
c7495937 JS |
4778 | rc = -ERANGE; |
4779 | goto job_done; | |
4780 | } | |
7ad20aa9 JS |
4781 | pmb->un.varWords[3] = putPaddrLow(dmabuf->phys |
4782 | + sizeof(MAILBOX_t)); | |
4783 | pmb->un.varWords[4] = putPaddrHigh(dmabuf->phys | |
4784 | + sizeof(MAILBOX_t)); | |
c7495937 JS |
4785 | } else if ((pmb->mbxCommand == MBX_UPDATE_CFG) && |
4786 | pmb->un.varUpdateCfg.co) { | |
b6e3b9c6 | 4787 | bde = (struct ulp_bde64 *)&pmb->un.varWords[4]; |
c7495937 JS |
4788 | |
4789 | /* bde size cannot be greater than mailbox ext size */ | |
88a2cfbb JS |
4790 | if (bde->tus.f.bdeSize > |
4791 | BSG_MBOX_SIZE - sizeof(MAILBOX_t)) { | |
c7495937 JS |
4792 | rc = -ERANGE; |
4793 | goto job_done; | |
4794 | } | |
7ad20aa9 JS |
4795 | bde->addrHigh = putPaddrHigh(dmabuf->phys |
4796 | + sizeof(MAILBOX_t)); | |
4797 | bde->addrLow = putPaddrLow(dmabuf->phys | |
4798 | + sizeof(MAILBOX_t)); | |
515e0aa2 | 4799 | } else if (pmb->mbxCommand == MBX_SLI4_CONFIG) { |
7ad20aa9 JS |
4800 | /* Handling non-embedded SLI_CONFIG mailbox command */ |
4801 | sli4_config = &pmboxq->u.mqe.un.sli4_config; | |
4802 | if (!bf_get(lpfc_mbox_hdr_emb, | |
4803 | &sli4_config->header.cfg_mhdr)) { | |
4804 | /* rebuild the command for sli4 using our | |
4805 | * own buffers like we do for biu diags | |
4806 | */ | |
4807 | header = (struct mbox_header *) | |
4808 | &pmb->un.varWords[0]; | |
4809 | nembed_sge = (struct lpfc_mbx_nembed_cmd *) | |
4810 | &pmb->un.varWords[0]; | |
4811 | receive_length = nembed_sge->sge[0].length; | |
4812 | ||
4813 | /* receive length cannot be greater than | |
4814 | * mailbox extension size | |
4815 | */ | |
4816 | if ((receive_length == 0) || | |
88a2cfbb JS |
4817 | (receive_length > |
4818 | BSG_MBOX_SIZE - sizeof(MAILBOX_t))) { | |
7ad20aa9 JS |
4819 | rc = -ERANGE; |
4820 | goto job_done; | |
4821 | } | |
515e0aa2 | 4822 | |
7ad20aa9 JS |
4823 | nembed_sge->sge[0].pa_hi = |
4824 | putPaddrHigh(dmabuf->phys | |
4825 | + sizeof(MAILBOX_t)); | |
4826 | nembed_sge->sge[0].pa_lo = | |
4827 | putPaddrLow(dmabuf->phys | |
4828 | + sizeof(MAILBOX_t)); | |
515e0aa2 | 4829 | } |
c7495937 | 4830 | } |
7a470277 JS |
4831 | } |
4832 | ||
7ad20aa9 | 4833 | dd_data->context_un.mbox.dmabuffers = dmabuf; |
c7495937 | 4834 | |
7a470277 | 4835 | /* setup wake call as IOCB callback */ |
7ad20aa9 | 4836 | pmboxq->mbox_cmpl = lpfc_bsg_issue_mbox_cmpl; |
7a470277 JS |
4837 | |
4838 | /* setup context field to pass wait_queue pointer to wake function */ | |
4839 | pmboxq->context1 = dd_data; | |
4840 | dd_data->type = TYPE_MBOX; | |
a33c4f7b | 4841 | dd_data->set_job = job; |
7a470277 | 4842 | dd_data->context_un.mbox.pmboxq = pmboxq; |
7ad20aa9 | 4843 | dd_data->context_un.mbox.mb = (MAILBOX_t *)pmbx; |
7a470277 JS |
4844 | dd_data->context_un.mbox.ext = ext; |
4845 | dd_data->context_un.mbox.mbOffset = mbox_req->mbOffset; | |
4846 | dd_data->context_un.mbox.inExtWLen = mbox_req->inExtWLen; | |
c7495937 | 4847 | dd_data->context_un.mbox.outExtWLen = mbox_req->outExtWLen; |
7a470277 JS |
4848 | job->dd_data = dd_data; |
4849 | ||
3b5dd52a JS |
4850 | if ((vport->fc_flag & FC_OFFLINE_MODE) || |
4851 | (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE))) { | |
4852 | rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); | |
4853 | if (rc != MBX_SUCCESS) { | |
7a470277 JS |
4854 | rc = (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV; |
4855 | goto job_done; | |
3b5dd52a JS |
4856 | } |
4857 | ||
7a470277 | 4858 | /* job finished, copy the data */ |
7ad20aa9 | 4859 | memcpy(pmbx, pmb, sizeof(*pmb)); |
3b5dd52a JS |
4860 | job->reply->reply_payload_rcv_len = |
4861 | sg_copy_from_buffer(job->reply_payload.sg_list, | |
7ad20aa9 JS |
4862 | job->reply_payload.sg_cnt, |
4863 | pmbx, size); | |
3b5dd52a | 4864 | /* not waiting mbox already done */ |
7a470277 JS |
4865 | rc = 0; |
4866 | goto job_done; | |
3b5dd52a JS |
4867 | } |
4868 | ||
3b5dd52a | 4869 | rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); |
7a470277 JS |
4870 | if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY)) |
4871 | return 1; /* job started */ | |
4872 | ||
4873 | job_done: | |
4874 | /* common exit for error or job completed inline */ | |
7a470277 | 4875 | if (pmboxq) |
3b5dd52a | 4876 | mempool_free(pmboxq, phba->mbox_mem_pool); |
7ad20aa9 | 4877 | lpfc_bsg_dma_page_free(phba, dmabuf); |
7a470277 | 4878 | kfree(dd_data); |
3b5dd52a | 4879 | |
7ad20aa9 | 4880 | job_cont: |
7a470277 | 4881 | return rc; |
3b5dd52a JS |
4882 | } |
4883 | ||
4884 | /** | |
4885 | * lpfc_bsg_mbox_cmd - process an fc bsg LPFC_BSG_VENDOR_MBOX command | |
4886 | * @job: MBOX fc_bsg_job for LPFC_BSG_VENDOR_MBOX. | |
4887 | **/ | |
4888 | static int | |
4889 | lpfc_bsg_mbox_cmd(struct fc_bsg_job *job) | |
4890 | { | |
4891 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
4892 | struct lpfc_hba *phba = vport->phba; | |
7ad20aa9 | 4893 | struct dfc_mbox_req *mbox_req; |
3b5dd52a JS |
4894 | int rc = 0; |
4895 | ||
7ad20aa9 | 4896 | /* mix-and-match backward compatibility */ |
3b5dd52a JS |
4897 | job->reply->reply_payload_rcv_len = 0; |
4898 | if (job->request_len < | |
4899 | sizeof(struct fc_bsg_request) + sizeof(struct dfc_mbox_req)) { | |
7ad20aa9 | 4900 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
1051e9b3 | 4901 | "2737 Mix-and-match backward compatibility " |
7ad20aa9 JS |
4902 | "between MBOX_REQ old size:%d and " |
4903 | "new request size:%d\n", | |
4904 | (int)(job->request_len - | |
4905 | sizeof(struct fc_bsg_request)), | |
4906 | (int)sizeof(struct dfc_mbox_req)); | |
4907 | mbox_req = (struct dfc_mbox_req *) | |
4908 | job->request->rqst_data.h_vendor.vendor_cmd; | |
4909 | mbox_req->extMboxTag = 0; | |
4910 | mbox_req->extSeqNum = 0; | |
3b5dd52a JS |
4911 | } |
4912 | ||
4913 | rc = lpfc_bsg_issue_mbox(phba, job, vport); | |
4914 | ||
3b5dd52a JS |
4915 | if (rc == 0) { |
4916 | /* job done */ | |
4917 | job->reply->result = 0; | |
4918 | job->dd_data = NULL; | |
4919 | job->job_done(job); | |
4920 | } else if (rc == 1) | |
4921 | /* job submitted, will complete later*/ | |
4922 | rc = 0; /* return zero, no error */ | |
4923 | else { | |
4924 | /* some error occurred */ | |
4925 | job->reply->result = rc; | |
4926 | job->dd_data = NULL; | |
4927 | } | |
4928 | ||
4929 | return rc; | |
4930 | } | |
4931 | ||
e2aed29f JS |
4932 | /** |
4933 | * lpfc_bsg_menlo_cmd_cmp - lpfc_menlo_cmd completion handler | |
4934 | * @phba: Pointer to HBA context object. | |
4935 | * @cmdiocbq: Pointer to command iocb. | |
4936 | * @rspiocbq: Pointer to response iocb. | |
4937 | * | |
4938 | * This function is the completion handler for iocbs issued using | |
4939 | * lpfc_menlo_cmd function. This function is called by the | |
4940 | * ring event handler function without any lock held. This function | |
4941 | * can be called from both worker thread context and interrupt | |
4942 | * context. This function also can be called from another thread which | |
4943 | * cleans up the SLI layer objects. | |
4944 | * This function copies the contents of the response iocb to the | |
4945 | * response iocb memory object provided by the caller of | |
4946 | * lpfc_sli_issue_iocb_wait and then wakes up the thread which | |
4947 | * sleeps for the iocb completion. | |
4948 | **/ | |
4949 | static void | |
4950 | lpfc_bsg_menlo_cmd_cmp(struct lpfc_hba *phba, | |
4951 | struct lpfc_iocbq *cmdiocbq, | |
4952 | struct lpfc_iocbq *rspiocbq) | |
4953 | { | |
4954 | struct bsg_job_data *dd_data; | |
4955 | struct fc_bsg_job *job; | |
4956 | IOCB_t *rsp; | |
a33c4f7b | 4957 | struct lpfc_dmabuf *bmp, *cmp, *rmp; |
e2aed29f JS |
4958 | struct lpfc_bsg_menlo *menlo; |
4959 | unsigned long flags; | |
4960 | struct menlo_response *menlo_resp; | |
a33c4f7b | 4961 | unsigned int rsp_size; |
e2aed29f JS |
4962 | int rc = 0; |
4963 | ||
e2aed29f | 4964 | dd_data = cmdiocbq->context1; |
a33c4f7b JS |
4965 | cmp = cmdiocbq->context2; |
4966 | bmp = cmdiocbq->context3; | |
e2aed29f | 4967 | menlo = &dd_data->context_un.menlo; |
a33c4f7b | 4968 | rmp = menlo->rmp; |
e2aed29f JS |
4969 | rsp = &rspiocbq->iocb; |
4970 | ||
a33c4f7b JS |
4971 | /* Determine if job has been aborted */ |
4972 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
4973 | job = dd_data->set_job; | |
4974 | if (job) { | |
4975 | /* Prevent timeout handling from trying to abort job */ | |
4976 | job->dd_data = NULL; | |
4977 | } | |
4978 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
4979 | ||
4980 | /* Copy the job data or set the failing status for the job */ | |
e2aed29f | 4981 | |
a33c4f7b JS |
4982 | if (job) { |
4983 | /* always return the xri, this would be used in the case | |
4984 | * of a menlo download to allow the data to be sent as a | |
4985 | * continuation of the exchange. | |
4986 | */ | |
4987 | ||
4988 | menlo_resp = (struct menlo_response *) | |
4989 | job->reply->reply_data.vendor_reply.vendor_rsp; | |
4990 | menlo_resp->xri = rsp->ulpContext; | |
4991 | if (rsp->ulpStatus) { | |
4992 | if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) { | |
4993 | switch (rsp->un.ulpWord[4] & IOERR_PARAM_MASK) { | |
4994 | case IOERR_SEQUENCE_TIMEOUT: | |
4995 | rc = -ETIMEDOUT; | |
4996 | break; | |
4997 | case IOERR_INVALID_RPI: | |
4998 | rc = -EFAULT; | |
4999 | break; | |
5000 | default: | |
5001 | rc = -EACCES; | |
5002 | break; | |
5003 | } | |
5004 | } else { | |
e2aed29f | 5005 | rc = -EACCES; |
e2aed29f | 5006 | } |
a33c4f7b JS |
5007 | } else { |
5008 | rsp_size = rsp->un.genreq64.bdl.bdeSize; | |
5009 | job->reply->reply_payload_rcv_len = | |
5010 | lpfc_bsg_copy_data(rmp, &job->reply_payload, | |
5011 | rsp_size, 0); | |
5012 | } | |
5013 | ||
5014 | } | |
e2aed29f | 5015 | |
e2aed29f | 5016 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
a33c4f7b JS |
5017 | lpfc_free_bsg_buffers(phba, cmp); |
5018 | lpfc_free_bsg_buffers(phba, rmp); | |
5019 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); | |
e2aed29f JS |
5020 | kfree(bmp); |
5021 | kfree(dd_data); | |
a33c4f7b JS |
5022 | |
5023 | /* Complete the job if active */ | |
5024 | ||
5025 | if (job) { | |
5026 | job->reply->result = rc; | |
5027 | job->job_done(job); | |
5028 | } | |
5029 | ||
e2aed29f JS |
5030 | return; |
5031 | } | |
5032 | ||
5033 | /** | |
5034 | * lpfc_menlo_cmd - send an ioctl for menlo hardware | |
5035 | * @job: fc_bsg_job to handle | |
5036 | * | |
5037 | * This function issues a gen request 64 CR ioctl for all menlo cmd requests, | |
5038 | * all the command completions will return the xri for the command. | |
5039 | * For menlo data requests a gen request 64 CX is used to continue the exchange | |
5040 | * supplied in the menlo request header xri field. | |
5041 | **/ | |
5042 | static int | |
5043 | lpfc_menlo_cmd(struct fc_bsg_job *job) | |
5044 | { | |
5045 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
5046 | struct lpfc_hba *phba = vport->phba; | |
a33c4f7b JS |
5047 | struct lpfc_iocbq *cmdiocbq; |
5048 | IOCB_t *cmd; | |
e2aed29f JS |
5049 | int rc = 0; |
5050 | struct menlo_command *menlo_cmd; | |
5051 | struct menlo_response *menlo_resp; | |
a33c4f7b | 5052 | struct lpfc_dmabuf *bmp = NULL, *cmp = NULL, *rmp = NULL; |
e2aed29f JS |
5053 | int request_nseg; |
5054 | int reply_nseg; | |
e2aed29f JS |
5055 | struct bsg_job_data *dd_data; |
5056 | struct ulp_bde64 *bpl = NULL; | |
5057 | ||
5058 | /* in case no data is returned return just the return code */ | |
5059 | job->reply->reply_payload_rcv_len = 0; | |
5060 | ||
5061 | if (job->request_len < | |
5062 | sizeof(struct fc_bsg_request) + | |
5063 | sizeof(struct menlo_command)) { | |
5064 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
5065 | "2784 Received MENLO_CMD request below " | |
5066 | "minimum size\n"); | |
5067 | rc = -ERANGE; | |
5068 | goto no_dd_data; | |
5069 | } | |
5070 | ||
5071 | if (job->reply_len < | |
5072 | sizeof(struct fc_bsg_request) + sizeof(struct menlo_response)) { | |
5073 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
5074 | "2785 Received MENLO_CMD reply below " | |
5075 | "minimum size\n"); | |
5076 | rc = -ERANGE; | |
5077 | goto no_dd_data; | |
5078 | } | |
5079 | ||
5080 | if (!(phba->menlo_flag & HBA_MENLO_SUPPORT)) { | |
5081 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
5082 | "2786 Adapter does not support menlo " | |
5083 | "commands\n"); | |
5084 | rc = -EPERM; | |
5085 | goto no_dd_data; | |
5086 | } | |
5087 | ||
5088 | menlo_cmd = (struct menlo_command *) | |
5089 | job->request->rqst_data.h_vendor.vendor_cmd; | |
5090 | ||
5091 | menlo_resp = (struct menlo_response *) | |
5092 | job->reply->reply_data.vendor_reply.vendor_rsp; | |
5093 | ||
5094 | /* allocate our bsg tracking structure */ | |
5095 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); | |
5096 | if (!dd_data) { | |
5097 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
5098 | "2787 Failed allocation of dd_data\n"); | |
5099 | rc = -ENOMEM; | |
5100 | goto no_dd_data; | |
5101 | } | |
5102 | ||
5103 | bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
5104 | if (!bmp) { | |
5105 | rc = -ENOMEM; | |
5106 | goto free_dd; | |
5107 | } | |
5108 | ||
a33c4f7b JS |
5109 | bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys); |
5110 | if (!bmp->virt) { | |
e2aed29f JS |
5111 | rc = -ENOMEM; |
5112 | goto free_bmp; | |
5113 | } | |
5114 | ||
a33c4f7b | 5115 | INIT_LIST_HEAD(&bmp->list); |
e2aed29f | 5116 | |
a33c4f7b JS |
5117 | bpl = (struct ulp_bde64 *)bmp->virt; |
5118 | request_nseg = LPFC_BPL_SIZE/sizeof(struct ulp_bde64); | |
5119 | cmp = lpfc_alloc_bsg_buffers(phba, job->request_payload.payload_len, | |
5120 | 1, bpl, &request_nseg); | |
5121 | if (!cmp) { | |
e2aed29f | 5122 | rc = -ENOMEM; |
a33c4f7b | 5123 | goto free_bmp; |
e2aed29f | 5124 | } |
a33c4f7b JS |
5125 | lpfc_bsg_copy_data(cmp, &job->request_payload, |
5126 | job->request_payload.payload_len, 1); | |
e2aed29f | 5127 | |
a33c4f7b JS |
5128 | bpl += request_nseg; |
5129 | reply_nseg = LPFC_BPL_SIZE/sizeof(struct ulp_bde64) - request_nseg; | |
5130 | rmp = lpfc_alloc_bsg_buffers(phba, job->reply_payload.payload_len, 0, | |
5131 | bpl, &reply_nseg); | |
5132 | if (!rmp) { | |
5133 | rc = -ENOMEM; | |
5134 | goto free_cmp; | |
e2aed29f JS |
5135 | } |
5136 | ||
a33c4f7b JS |
5137 | cmdiocbq = lpfc_sli_get_iocbq(phba); |
5138 | if (!cmdiocbq) { | |
5139 | rc = -ENOMEM; | |
5140 | goto free_rmp; | |
e2aed29f JS |
5141 | } |
5142 | ||
5143 | cmd = &cmdiocbq->iocb; | |
5144 | cmd->un.genreq64.bdl.ulpIoTag32 = 0; | |
5145 | cmd->un.genreq64.bdl.addrHigh = putPaddrHigh(bmp->phys); | |
5146 | cmd->un.genreq64.bdl.addrLow = putPaddrLow(bmp->phys); | |
5147 | cmd->un.genreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; | |
5148 | cmd->un.genreq64.bdl.bdeSize = | |
5149 | (request_nseg + reply_nseg) * sizeof(struct ulp_bde64); | |
5150 | cmd->un.genreq64.w5.hcsw.Fctl = (SI | LA); | |
5151 | cmd->un.genreq64.w5.hcsw.Dfctl = 0; | |
5152 | cmd->un.genreq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CMD; | |
5153 | cmd->un.genreq64.w5.hcsw.Type = MENLO_TRANSPORT_TYPE; /* 0xfe */ | |
5154 | cmd->ulpBdeCount = 1; | |
5155 | cmd->ulpClass = CLASS3; | |
5156 | cmd->ulpOwner = OWN_CHIP; | |
5157 | cmd->ulpLe = 1; /* Limited Edition */ | |
5158 | cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC; | |
5159 | cmdiocbq->vport = phba->pport; | |
5160 | /* We want the firmware to timeout before we do */ | |
5161 | cmd->ulpTimeout = MENLO_TIMEOUT - 5; | |
e2aed29f JS |
5162 | cmdiocbq->iocb_cmpl = lpfc_bsg_menlo_cmd_cmp; |
5163 | cmdiocbq->context1 = dd_data; | |
a33c4f7b JS |
5164 | cmdiocbq->context2 = cmp; |
5165 | cmdiocbq->context3 = bmp; | |
e2aed29f JS |
5166 | if (menlo_cmd->cmd == LPFC_BSG_VENDOR_MENLO_CMD) { |
5167 | cmd->ulpCommand = CMD_GEN_REQUEST64_CR; | |
5168 | cmd->ulpPU = MENLO_PU; /* 3 */ | |
5169 | cmd->un.ulpWord[4] = MENLO_DID; /* 0x0000FC0E */ | |
5170 | cmd->ulpContext = MENLO_CONTEXT; /* 0 */ | |
5171 | } else { | |
5172 | cmd->ulpCommand = CMD_GEN_REQUEST64_CX; | |
5173 | cmd->ulpPU = 1; | |
5174 | cmd->un.ulpWord[4] = 0; | |
5175 | cmd->ulpContext = menlo_cmd->xri; | |
5176 | } | |
5177 | ||
5178 | dd_data->type = TYPE_MENLO; | |
a33c4f7b | 5179 | dd_data->set_job = job; |
e2aed29f | 5180 | dd_data->context_un.menlo.cmdiocbq = cmdiocbq; |
a33c4f7b JS |
5181 | dd_data->context_un.menlo.rmp = rmp; |
5182 | job->dd_data = dd_data; | |
e2aed29f JS |
5183 | |
5184 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, | |
5185 | MENLO_TIMEOUT - 5); | |
5186 | if (rc == IOCB_SUCCESS) | |
5187 | return 0; /* done for now */ | |
5188 | ||
e2aed29f | 5189 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
a33c4f7b JS |
5190 | |
5191 | free_rmp: | |
5192 | lpfc_free_bsg_buffers(phba, rmp); | |
5193 | free_cmp: | |
5194 | lpfc_free_bsg_buffers(phba, cmp); | |
e2aed29f | 5195 | free_bmp: |
a33c4f7b JS |
5196 | if (bmp->virt) |
5197 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); | |
e2aed29f JS |
5198 | kfree(bmp); |
5199 | free_dd: | |
5200 | kfree(dd_data); | |
5201 | no_dd_data: | |
5202 | /* make error code available to userspace */ | |
5203 | job->reply->result = rc; | |
5204 | job->dd_data = NULL; | |
5205 | return rc; | |
5206 | } | |
b6e3b9c6 | 5207 | |
3b5dd52a JS |
5208 | /** |
5209 | * lpfc_bsg_hst_vendor - process a vendor-specific fc_bsg_job | |
5210 | * @job: fc_bsg_job to handle | |
5211 | **/ | |
5212 | static int | |
5213 | lpfc_bsg_hst_vendor(struct fc_bsg_job *job) | |
5214 | { | |
5215 | int command = job->request->rqst_data.h_vendor.vendor_cmd[0]; | |
5216 | int rc; | |
5217 | ||
5218 | switch (command) { | |
5219 | case LPFC_BSG_VENDOR_SET_CT_EVENT: | |
5220 | rc = lpfc_bsg_hba_set_event(job); | |
5221 | break; | |
5222 | case LPFC_BSG_VENDOR_GET_CT_EVENT: | |
5223 | rc = lpfc_bsg_hba_get_event(job); | |
5224 | break; | |
5225 | case LPFC_BSG_VENDOR_SEND_MGMT_RESP: | |
5226 | rc = lpfc_bsg_send_mgmt_rsp(job); | |
5227 | break; | |
5228 | case LPFC_BSG_VENDOR_DIAG_MODE: | |
7ad20aa9 JS |
5229 | rc = lpfc_bsg_diag_loopback_mode(job); |
5230 | break; | |
5231 | case LPFC_BSG_VENDOR_DIAG_MODE_END: | |
5232 | rc = lpfc_sli4_bsg_diag_mode_end(job); | |
5233 | break; | |
5234 | case LPFC_BSG_VENDOR_DIAG_RUN_LOOPBACK: | |
5235 | rc = lpfc_bsg_diag_loopback_run(job); | |
3b5dd52a | 5236 | break; |
7ad20aa9 JS |
5237 | case LPFC_BSG_VENDOR_LINK_DIAG_TEST: |
5238 | rc = lpfc_sli4_bsg_link_diag_test(job); | |
3b5dd52a JS |
5239 | break; |
5240 | case LPFC_BSG_VENDOR_GET_MGMT_REV: | |
5241 | rc = lpfc_bsg_get_dfc_rev(job); | |
5242 | break; | |
5243 | case LPFC_BSG_VENDOR_MBOX: | |
5244 | rc = lpfc_bsg_mbox_cmd(job); | |
5245 | break; | |
e2aed29f JS |
5246 | case LPFC_BSG_VENDOR_MENLO_CMD: |
5247 | case LPFC_BSG_VENDOR_MENLO_DATA: | |
5248 | rc = lpfc_menlo_cmd(job); | |
5249 | break; | |
3b5dd52a JS |
5250 | default: |
5251 | rc = -EINVAL; | |
5252 | job->reply->reply_payload_rcv_len = 0; | |
5253 | /* make error code available to userspace */ | |
5254 | job->reply->result = rc; | |
5255 | break; | |
5256 | } | |
5257 | ||
5258 | return rc; | |
5259 | } | |
5260 | ||
5261 | /** | |
5262 | * lpfc_bsg_request - handle a bsg request from the FC transport | |
5263 | * @job: fc_bsg_job to handle | |
5264 | **/ | |
5265 | int | |
5266 | lpfc_bsg_request(struct fc_bsg_job *job) | |
5267 | { | |
5268 | uint32_t msgcode; | |
5269 | int rc; | |
5270 | ||
5271 | msgcode = job->request->msgcode; | |
5272 | switch (msgcode) { | |
5273 | case FC_BSG_HST_VENDOR: | |
5274 | rc = lpfc_bsg_hst_vendor(job); | |
5275 | break; | |
5276 | case FC_BSG_RPT_ELS: | |
5277 | rc = lpfc_bsg_rport_els(job); | |
5278 | break; | |
5279 | case FC_BSG_RPT_CT: | |
5280 | rc = lpfc_bsg_send_mgmt_cmd(job); | |
5281 | break; | |
5282 | default: | |
5283 | rc = -EINVAL; | |
5284 | job->reply->reply_payload_rcv_len = 0; | |
5285 | /* make error code available to userspace */ | |
5286 | job->reply->result = rc; | |
5287 | break; | |
5288 | } | |
5289 | ||
5290 | return rc; | |
5291 | } | |
5292 | ||
5293 | /** | |
5294 | * lpfc_bsg_timeout - handle timeout of a bsg request from the FC transport | |
5295 | * @job: fc_bsg_job that has timed out | |
5296 | * | |
5297 | * This function just aborts the job's IOCB. The aborted IOCB will return to | |
5298 | * the waiting function which will handle passing the error back to userspace | |
5299 | **/ | |
5300 | int | |
5301 | lpfc_bsg_timeout(struct fc_bsg_job *job) | |
5302 | { | |
5303 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
5304 | struct lpfc_hba *phba = vport->phba; | |
5305 | struct lpfc_iocbq *cmdiocb; | |
3b5dd52a JS |
5306 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; |
5307 | struct bsg_job_data *dd_data; | |
5308 | unsigned long flags; | |
a33c4f7b JS |
5309 | int rc = 0; |
5310 | LIST_HEAD(completions); | |
5311 | struct lpfc_iocbq *check_iocb, *next_iocb; | |
5312 | ||
5313 | /* if job's driver data is NULL, the command completed or is in the | |
5314 | * the process of completing. In this case, return status to request | |
5315 | * so the timeout is retried. This avoids double completion issues | |
5316 | * and the request will be pulled off the timer queue when the | |
5317 | * command's completion handler executes. Otherwise, prevent the | |
5318 | * command's completion handler from executing the job done callback | |
5319 | * and continue processing to abort the outstanding the command. | |
5320 | */ | |
3b5dd52a JS |
5321 | |
5322 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
5323 | dd_data = (struct bsg_job_data *)job->dd_data; | |
a33c4f7b JS |
5324 | if (dd_data) { |
5325 | dd_data->set_job = NULL; | |
5326 | job->dd_data = NULL; | |
5327 | } else { | |
3b5dd52a | 5328 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
a33c4f7b | 5329 | return -EAGAIN; |
4cc0e56e JS |
5330 | } |
5331 | ||
5332 | switch (dd_data->type) { | |
5333 | case TYPE_IOCB: | |
a33c4f7b JS |
5334 | /* Check to see if IOCB was issued to the port or not. If not, |
5335 | * remove it from the txq queue and call cancel iocbs. | |
5336 | * Otherwise, call abort iotag | |
5337 | */ | |
a33c4f7b | 5338 | cmdiocb = dd_data->context_un.iocb.cmdiocbq; |
b5a9b2df JS |
5339 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
5340 | ||
5341 | spin_lock_irqsave(&phba->hbalock, flags); | |
5342 | /* make sure the I/O abort window is still open */ | |
1b8d11ab | 5343 | if (!(cmdiocb->iocb_flag & LPFC_IO_CMD_OUTSTANDING)) { |
b5a9b2df JS |
5344 | spin_unlock_irqrestore(&phba->hbalock, flags); |
5345 | return -EAGAIN; | |
5346 | } | |
a33c4f7b JS |
5347 | list_for_each_entry_safe(check_iocb, next_iocb, &pring->txq, |
5348 | list) { | |
5349 | if (check_iocb == cmdiocb) { | |
5350 | list_move_tail(&check_iocb->list, &completions); | |
5351 | break; | |
5352 | } | |
5353 | } | |
5354 | if (list_empty(&completions)) | |
5355 | lpfc_sli_issue_abort_iotag(phba, pring, cmdiocb); | |
b5a9b2df | 5356 | spin_unlock_irqrestore(&phba->hbalock, flags); |
a33c4f7b JS |
5357 | if (!list_empty(&completions)) { |
5358 | lpfc_sli_cancel_iocbs(phba, &completions, | |
5359 | IOSTAT_LOCAL_REJECT, | |
5360 | IOERR_SLI_ABORTED); | |
5361 | } | |
4cc0e56e | 5362 | break; |
a33c4f7b | 5363 | |
4cc0e56e | 5364 | case TYPE_EVT: |
4cc0e56e | 5365 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
4cc0e56e | 5366 | break; |
a33c4f7b | 5367 | |
3b5dd52a | 5368 | case TYPE_MBOX: |
a33c4f7b JS |
5369 | /* Update the ext buf ctx state if needed */ |
5370 | ||
7ad20aa9 JS |
5371 | if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_PORT) |
5372 | phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_ABTS; | |
a33c4f7b | 5373 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
3b5dd52a | 5374 | break; |
e2aed29f | 5375 | case TYPE_MENLO: |
a33c4f7b JS |
5376 | /* Check to see if IOCB was issued to the port or not. If not, |
5377 | * remove it from the txq queue and call cancel iocbs. | |
5378 | * Otherwise, call abort iotag. | |
5379 | */ | |
a33c4f7b | 5380 | cmdiocb = dd_data->context_un.menlo.cmdiocbq; |
b5a9b2df JS |
5381 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
5382 | ||
5383 | spin_lock_irqsave(&phba->hbalock, flags); | |
a33c4f7b JS |
5384 | list_for_each_entry_safe(check_iocb, next_iocb, &pring->txq, |
5385 | list) { | |
5386 | if (check_iocb == cmdiocb) { | |
5387 | list_move_tail(&check_iocb->list, &completions); | |
5388 | break; | |
5389 | } | |
5390 | } | |
5391 | if (list_empty(&completions)) | |
5392 | lpfc_sli_issue_abort_iotag(phba, pring, cmdiocb); | |
b5a9b2df | 5393 | spin_unlock_irqrestore(&phba->hbalock, flags); |
a33c4f7b JS |
5394 | if (!list_empty(&completions)) { |
5395 | lpfc_sli_cancel_iocbs(phba, &completions, | |
5396 | IOSTAT_LOCAL_REJECT, | |
5397 | IOERR_SLI_ABORTED); | |
5398 | } | |
e2aed29f | 5399 | break; |
4cc0e56e JS |
5400 | default: |
5401 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
5402 | break; | |
5403 | } | |
f1c3b0fc | 5404 | |
4cc0e56e JS |
5405 | /* scsi transport fc fc_bsg_job_timeout expects a zero return code, |
5406 | * otherwise an error message will be displayed on the console | |
5407 | * so always return success (zero) | |
5408 | */ | |
a33c4f7b | 5409 | return rc; |
f1c3b0fc | 5410 | } |