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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. * | |
792581de | 4 | * Copyright (C) 2009-2011 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 | ||
67 | /* job waiting for this event to finish */ | |
68 | struct fc_bsg_job *set_job; | |
69 | }; | |
70 | ||
71 | struct lpfc_bsg_iocb { | |
72 | struct lpfc_iocbq *cmdiocbq; | |
73 | struct lpfc_iocbq *rspiocbq; | |
74 | struct lpfc_dmabuf *bmp; | |
75 | struct lpfc_nodelist *ndlp; | |
76 | ||
77 | /* job waiting for this iocb to finish */ | |
78 | struct fc_bsg_job *set_job; | |
79 | }; | |
80 | ||
3b5dd52a JS |
81 | struct lpfc_bsg_mbox { |
82 | LPFC_MBOXQ_t *pmboxq; | |
83 | MAILBOX_t *mb; | |
7ad20aa9 | 84 | struct lpfc_dmabuf *dmabuffers; /* for BIU diags */ |
7a470277 JS |
85 | uint8_t *ext; /* extended mailbox data */ |
86 | uint32_t mbOffset; /* from app */ | |
87 | uint32_t inExtWLen; /* from app */ | |
c7495937 | 88 | uint32_t outExtWLen; /* from app */ |
3b5dd52a JS |
89 | |
90 | /* job waiting for this mbox command to finish */ | |
91 | struct fc_bsg_job *set_job; | |
92 | }; | |
93 | ||
e2aed29f JS |
94 | #define MENLO_DID 0x0000FC0E |
95 | ||
96 | struct lpfc_bsg_menlo { | |
97 | struct lpfc_iocbq *cmdiocbq; | |
98 | struct lpfc_iocbq *rspiocbq; | |
99 | struct lpfc_dmabuf *bmp; | |
100 | ||
101 | /* job waiting for this iocb to finish */ | |
102 | struct fc_bsg_job *set_job; | |
103 | }; | |
104 | ||
4cc0e56e JS |
105 | #define TYPE_EVT 1 |
106 | #define TYPE_IOCB 2 | |
3b5dd52a | 107 | #define TYPE_MBOX 3 |
e2aed29f | 108 | #define TYPE_MENLO 4 |
4cc0e56e JS |
109 | struct bsg_job_data { |
110 | uint32_t type; | |
111 | union { | |
112 | struct lpfc_bsg_event *evt; | |
113 | struct lpfc_bsg_iocb iocb; | |
3b5dd52a | 114 | struct lpfc_bsg_mbox mbox; |
e2aed29f | 115 | struct lpfc_bsg_menlo menlo; |
4cc0e56e JS |
116 | } context_un; |
117 | }; | |
118 | ||
119 | struct event_data { | |
120 | struct list_head node; | |
121 | uint32_t type; | |
122 | uint32_t immed_dat; | |
123 | void *data; | |
124 | uint32_t len; | |
125 | }; | |
126 | ||
3b5dd52a | 127 | #define BUF_SZ_4K 4096 |
4cc0e56e JS |
128 | #define SLI_CT_ELX_LOOPBACK 0x10 |
129 | ||
130 | enum ELX_LOOPBACK_CMD { | |
131 | ELX_LOOPBACK_XRI_SETUP, | |
132 | ELX_LOOPBACK_DATA, | |
133 | }; | |
134 | ||
3b5dd52a JS |
135 | #define ELX_LOOPBACK_HEADER_SZ \ |
136 | (size_t)(&((struct lpfc_sli_ct_request *)NULL)->un) | |
137 | ||
4cc0e56e JS |
138 | struct lpfc_dmabufext { |
139 | struct lpfc_dmabuf dma; | |
140 | uint32_t size; | |
141 | uint32_t flag; | |
142 | }; | |
143 | ||
144 | /** | |
145 | * lpfc_bsg_send_mgmt_cmd_cmp - lpfc_bsg_send_mgmt_cmd's completion handler | |
146 | * @phba: Pointer to HBA context object. | |
147 | * @cmdiocbq: Pointer to command iocb. | |
148 | * @rspiocbq: Pointer to response iocb. | |
149 | * | |
150 | * This function is the completion handler for iocbs issued using | |
151 | * lpfc_bsg_send_mgmt_cmd function. This function is called by the | |
152 | * ring event handler function without any lock held. This function | |
153 | * can be called from both worker thread context and interrupt | |
154 | * context. This function also can be called from another thread which | |
155 | * cleans up the SLI layer objects. | |
156 | * This function copies the contents of the response iocb to the | |
157 | * response iocb memory object provided by the caller of | |
158 | * lpfc_sli_issue_iocb_wait and then wakes up the thread which | |
159 | * sleeps for the iocb completion. | |
160 | **/ | |
161 | static void | |
162 | lpfc_bsg_send_mgmt_cmd_cmp(struct lpfc_hba *phba, | |
163 | struct lpfc_iocbq *cmdiocbq, | |
164 | struct lpfc_iocbq *rspiocbq) | |
165 | { | |
4cc0e56e JS |
166 | struct bsg_job_data *dd_data; |
167 | struct fc_bsg_job *job; | |
168 | IOCB_t *rsp; | |
169 | struct lpfc_dmabuf *bmp; | |
170 | struct lpfc_nodelist *ndlp; | |
171 | struct lpfc_bsg_iocb *iocb; | |
172 | unsigned long flags; | |
173 | int rc = 0; | |
174 | ||
175 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
be858b65 | 176 | dd_data = cmdiocbq->context2; |
4cc0e56e JS |
177 | if (!dd_data) { |
178 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
be858b65 | 179 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
4cc0e56e JS |
180 | return; |
181 | } | |
182 | ||
183 | iocb = &dd_data->context_un.iocb; | |
184 | job = iocb->set_job; | |
185 | job->dd_data = NULL; /* so timeout handler does not reply */ | |
186 | ||
4cc0e56e | 187 | bmp = iocb->bmp; |
4cc0e56e | 188 | rsp = &rspiocbq->iocb; |
be858b65 | 189 | ndlp = cmdiocbq->context1; |
4cc0e56e JS |
190 | |
191 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, | |
192 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
193 | pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list, | |
194 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); | |
195 | ||
196 | if (rsp->ulpStatus) { | |
197 | if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) { | |
198 | switch (rsp->un.ulpWord[4] & 0xff) { | |
199 | case IOERR_SEQUENCE_TIMEOUT: | |
200 | rc = -ETIMEDOUT; | |
201 | break; | |
202 | case IOERR_INVALID_RPI: | |
203 | rc = -EFAULT; | |
204 | break; | |
205 | default: | |
206 | rc = -EACCES; | |
207 | break; | |
208 | } | |
209 | } else | |
210 | rc = -EACCES; | |
211 | } else | |
212 | job->reply->reply_payload_rcv_len = | |
213 | rsp->un.genreq64.bdl.bdeSize; | |
214 | ||
215 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); | |
4cc0e56e JS |
216 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
217 | lpfc_nlp_put(ndlp); | |
218 | kfree(bmp); | |
219 | kfree(dd_data); | |
220 | /* make error code available to userspace */ | |
221 | job->reply->result = rc; | |
222 | /* complete the job back to userspace */ | |
223 | job->job_done(job); | |
224 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
225 | return; | |
226 | } | |
227 | ||
f1c3b0fc | 228 | /** |
4cc0e56e | 229 | * lpfc_bsg_send_mgmt_cmd - send a CT command from a bsg request |
f1c3b0fc | 230 | * @job: fc_bsg_job to handle |
3b5dd52a | 231 | **/ |
f1c3b0fc | 232 | static int |
4cc0e56e | 233 | lpfc_bsg_send_mgmt_cmd(struct fc_bsg_job *job) |
f1c3b0fc | 234 | { |
f1c3b0fc JS |
235 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; |
236 | struct lpfc_hba *phba = vport->phba; | |
237 | struct lpfc_rport_data *rdata = job->rport->dd_data; | |
238 | struct lpfc_nodelist *ndlp = rdata->pnode; | |
239 | struct ulp_bde64 *bpl = NULL; | |
240 | uint32_t timeout; | |
241 | struct lpfc_iocbq *cmdiocbq = NULL; | |
f1c3b0fc | 242 | IOCB_t *cmd; |
f1c3b0fc JS |
243 | struct lpfc_dmabuf *bmp = NULL; |
244 | int request_nseg; | |
245 | int reply_nseg; | |
246 | struct scatterlist *sgel = NULL; | |
247 | int numbde; | |
248 | dma_addr_t busaddr; | |
4cc0e56e JS |
249 | struct bsg_job_data *dd_data; |
250 | uint32_t creg_val; | |
f1c3b0fc | 251 | int rc = 0; |
d439d286 | 252 | int iocb_stat; |
f1c3b0fc JS |
253 | |
254 | /* in case no data is transferred */ | |
255 | job->reply->reply_payload_rcv_len = 0; | |
256 | ||
4cc0e56e JS |
257 | /* allocate our bsg tracking structure */ |
258 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); | |
259 | if (!dd_data) { | |
260 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
261 | "2733 Failed allocation of dd_data\n"); | |
262 | rc = -ENOMEM; | |
263 | goto no_dd_data; | |
264 | } | |
265 | ||
f1c3b0fc | 266 | if (!lpfc_nlp_get(ndlp)) { |
4cc0e56e JS |
267 | rc = -ENODEV; |
268 | goto no_ndlp; | |
269 | } | |
270 | ||
271 | bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
272 | if (!bmp) { | |
273 | rc = -ENOMEM; | |
274 | goto free_ndlp; | |
f1c3b0fc JS |
275 | } |
276 | ||
277 | if (ndlp->nlp_flag & NLP_ELS_SND_MASK) { | |
278 | rc = -ENODEV; | |
4cc0e56e | 279 | goto free_bmp; |
f1c3b0fc JS |
280 | } |
281 | ||
f1c3b0fc JS |
282 | cmdiocbq = lpfc_sli_get_iocbq(phba); |
283 | if (!cmdiocbq) { | |
284 | rc = -ENOMEM; | |
4cc0e56e | 285 | goto free_bmp; |
f1c3b0fc | 286 | } |
f1c3b0fc | 287 | |
4cc0e56e | 288 | cmd = &cmdiocbq->iocb; |
f1c3b0fc JS |
289 | bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys); |
290 | if (!bmp->virt) { | |
291 | rc = -ENOMEM; | |
be858b65 | 292 | goto free_cmdiocbq; |
f1c3b0fc | 293 | } |
f1c3b0fc JS |
294 | |
295 | INIT_LIST_HEAD(&bmp->list); | |
296 | bpl = (struct ulp_bde64 *) bmp->virt; | |
f1c3b0fc JS |
297 | request_nseg = pci_map_sg(phba->pcidev, job->request_payload.sg_list, |
298 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
299 | for_each_sg(job->request_payload.sg_list, sgel, request_nseg, numbde) { | |
300 | busaddr = sg_dma_address(sgel); | |
301 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
302 | bpl->tus.f.bdeSize = sg_dma_len(sgel); | |
303 | bpl->tus.w = cpu_to_le32(bpl->tus.w); | |
304 | bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr)); | |
305 | bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr)); | |
306 | bpl++; | |
307 | } | |
308 | ||
309 | reply_nseg = pci_map_sg(phba->pcidev, job->reply_payload.sg_list, | |
310 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); | |
311 | for_each_sg(job->reply_payload.sg_list, sgel, reply_nseg, numbde) { | |
312 | busaddr = sg_dma_address(sgel); | |
313 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; | |
314 | bpl->tus.f.bdeSize = sg_dma_len(sgel); | |
315 | bpl->tus.w = cpu_to_le32(bpl->tus.w); | |
316 | bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr)); | |
317 | bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr)); | |
318 | bpl++; | |
319 | } | |
320 | ||
321 | cmd->un.genreq64.bdl.ulpIoTag32 = 0; | |
322 | cmd->un.genreq64.bdl.addrHigh = putPaddrHigh(bmp->phys); | |
323 | cmd->un.genreq64.bdl.addrLow = putPaddrLow(bmp->phys); | |
324 | cmd->un.genreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; | |
325 | cmd->un.genreq64.bdl.bdeSize = | |
326 | (request_nseg + reply_nseg) * sizeof(struct ulp_bde64); | |
327 | cmd->ulpCommand = CMD_GEN_REQUEST64_CR; | |
328 | cmd->un.genreq64.w5.hcsw.Fctl = (SI | LA); | |
329 | cmd->un.genreq64.w5.hcsw.Dfctl = 0; | |
6a9c52cf JS |
330 | cmd->un.genreq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL; |
331 | cmd->un.genreq64.w5.hcsw.Type = FC_TYPE_CT; | |
f1c3b0fc JS |
332 | cmd->ulpBdeCount = 1; |
333 | cmd->ulpLe = 1; | |
334 | cmd->ulpClass = CLASS3; | |
335 | cmd->ulpContext = ndlp->nlp_rpi; | |
6d368e53 JS |
336 | if (phba->sli_rev == LPFC_SLI_REV4) |
337 | cmd->ulpContext = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; | |
f1c3b0fc JS |
338 | cmd->ulpOwner = OWN_CHIP; |
339 | cmdiocbq->vport = phba->pport; | |
4cc0e56e | 340 | cmdiocbq->context3 = bmp; |
f1c3b0fc | 341 | cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC; |
f1c3b0fc | 342 | timeout = phba->fc_ratov * 2; |
4cc0e56e JS |
343 | cmd->ulpTimeout = timeout; |
344 | ||
345 | cmdiocbq->iocb_cmpl = lpfc_bsg_send_mgmt_cmd_cmp; | |
be858b65 JS |
346 | cmdiocbq->context1 = ndlp; |
347 | cmdiocbq->context2 = dd_data; | |
4cc0e56e JS |
348 | dd_data->type = TYPE_IOCB; |
349 | dd_data->context_un.iocb.cmdiocbq = cmdiocbq; | |
4cc0e56e JS |
350 | dd_data->context_un.iocb.set_job = job; |
351 | dd_data->context_un.iocb.bmp = bmp; | |
4cc0e56e JS |
352 | |
353 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { | |
9940b97b JS |
354 | if (lpfc_readl(phba->HCregaddr, &creg_val)) { |
355 | rc = -EIO ; | |
356 | goto free_cmdiocbq; | |
357 | } | |
4cc0e56e JS |
358 | creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); |
359 | writel(creg_val, phba->HCregaddr); | |
360 | readl(phba->HCregaddr); /* flush */ | |
f1c3b0fc JS |
361 | } |
362 | ||
d439d286 JS |
363 | iocb_stat = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, 0); |
364 | if (iocb_stat == IOCB_SUCCESS) | |
4cc0e56e | 365 | return 0; /* done for now */ |
d439d286 JS |
366 | else if (iocb_stat == IOCB_BUSY) |
367 | rc = -EAGAIN; | |
2a9bf3d0 | 368 | else |
d439d286 | 369 | rc = -EIO; |
2a9bf3d0 | 370 | |
f1c3b0fc | 371 | |
4cc0e56e JS |
372 | /* iocb failed so cleanup */ |
373 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, | |
374 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
375 | pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list, | |
376 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); | |
f1c3b0fc | 377 | |
f1c3b0fc | 378 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); |
4cc0e56e | 379 | |
f1c3b0fc JS |
380 | free_cmdiocbq: |
381 | lpfc_sli_release_iocbq(phba, cmdiocbq); | |
4cc0e56e JS |
382 | free_bmp: |
383 | kfree(bmp); | |
384 | free_ndlp: | |
f1c3b0fc | 385 | lpfc_nlp_put(ndlp); |
4cc0e56e JS |
386 | no_ndlp: |
387 | kfree(dd_data); | |
388 | no_dd_data: | |
389 | /* make error code available to userspace */ | |
390 | job->reply->result = rc; | |
391 | job->dd_data = NULL; | |
392 | return rc; | |
393 | } | |
394 | ||
395 | /** | |
396 | * lpfc_bsg_rport_els_cmp - lpfc_bsg_rport_els's completion handler | |
397 | * @phba: Pointer to HBA context object. | |
398 | * @cmdiocbq: Pointer to command iocb. | |
399 | * @rspiocbq: Pointer to response iocb. | |
400 | * | |
401 | * This function is the completion handler for iocbs issued using | |
402 | * lpfc_bsg_rport_els_cmp function. This function is called by the | |
403 | * ring event handler function without any lock held. This function | |
404 | * can be called from both worker thread context and interrupt | |
405 | * context. This function also can be called from other thread which | |
406 | * cleans up the SLI layer objects. | |
3b5dd52a | 407 | * This function copies the contents of the response iocb to the |
4cc0e56e JS |
408 | * response iocb memory object provided by the caller of |
409 | * lpfc_sli_issue_iocb_wait and then wakes up the thread which | |
410 | * sleeps for the iocb completion. | |
411 | **/ | |
412 | static void | |
413 | lpfc_bsg_rport_els_cmp(struct lpfc_hba *phba, | |
414 | struct lpfc_iocbq *cmdiocbq, | |
415 | struct lpfc_iocbq *rspiocbq) | |
416 | { | |
417 | struct bsg_job_data *dd_data; | |
418 | struct fc_bsg_job *job; | |
419 | IOCB_t *rsp; | |
420 | struct lpfc_nodelist *ndlp; | |
421 | struct lpfc_dmabuf *pbuflist = NULL; | |
422 | struct fc_bsg_ctels_reply *els_reply; | |
423 | uint8_t *rjt_data; | |
424 | unsigned long flags; | |
425 | int rc = 0; | |
426 | ||
427 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
428 | dd_data = cmdiocbq->context1; | |
429 | /* normal completion and timeout crossed paths, already done */ | |
430 | if (!dd_data) { | |
67221a42 | 431 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
4cc0e56e JS |
432 | return; |
433 | } | |
434 | ||
435 | cmdiocbq->iocb_flag |= LPFC_IO_WAKE; | |
436 | if (cmdiocbq->context2 && rspiocbq) | |
437 | memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb, | |
438 | &rspiocbq->iocb, sizeof(IOCB_t)); | |
439 | ||
440 | job = dd_data->context_un.iocb.set_job; | |
441 | cmdiocbq = dd_data->context_un.iocb.cmdiocbq; | |
442 | rspiocbq = dd_data->context_un.iocb.rspiocbq; | |
443 | rsp = &rspiocbq->iocb; | |
444 | ndlp = dd_data->context_un.iocb.ndlp; | |
445 | ||
446 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, | |
447 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
448 | pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list, | |
449 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); | |
450 | ||
451 | if (job->reply->result == -EAGAIN) | |
452 | rc = -EAGAIN; | |
453 | else if (rsp->ulpStatus == IOSTAT_SUCCESS) | |
454 | job->reply->reply_payload_rcv_len = | |
455 | rsp->un.elsreq64.bdl.bdeSize; | |
456 | else if (rsp->ulpStatus == IOSTAT_LS_RJT) { | |
457 | job->reply->reply_payload_rcv_len = | |
458 | sizeof(struct fc_bsg_ctels_reply); | |
459 | /* LS_RJT data returned in word 4 */ | |
460 | rjt_data = (uint8_t *)&rsp->un.ulpWord[4]; | |
461 | els_reply = &job->reply->reply_data.ctels_reply; | |
462 | els_reply->status = FC_CTELS_STATUS_REJECT; | |
463 | els_reply->rjt_data.action = rjt_data[3]; | |
464 | els_reply->rjt_data.reason_code = rjt_data[2]; | |
465 | els_reply->rjt_data.reason_explanation = rjt_data[1]; | |
466 | els_reply->rjt_data.vendor_unique = rjt_data[0]; | |
467 | } else | |
468 | rc = -EIO; | |
f1c3b0fc | 469 | |
4cc0e56e JS |
470 | pbuflist = (struct lpfc_dmabuf *) cmdiocbq->context3; |
471 | lpfc_mbuf_free(phba, pbuflist->virt, pbuflist->phys); | |
472 | lpfc_sli_release_iocbq(phba, rspiocbq); | |
473 | lpfc_sli_release_iocbq(phba, cmdiocbq); | |
474 | lpfc_nlp_put(ndlp); | |
475 | kfree(dd_data); | |
f1c3b0fc JS |
476 | /* make error code available to userspace */ |
477 | job->reply->result = rc; | |
4cc0e56e | 478 | job->dd_data = NULL; |
f1c3b0fc JS |
479 | /* complete the job back to userspace */ |
480 | job->job_done(job); | |
4cc0e56e JS |
481 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
482 | return; | |
f1c3b0fc JS |
483 | } |
484 | ||
485 | /** | |
486 | * lpfc_bsg_rport_els - send an ELS command from a bsg request | |
487 | * @job: fc_bsg_job to handle | |
3b5dd52a | 488 | **/ |
f1c3b0fc JS |
489 | static int |
490 | lpfc_bsg_rport_els(struct fc_bsg_job *job) | |
491 | { | |
492 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
493 | struct lpfc_hba *phba = vport->phba; | |
494 | struct lpfc_rport_data *rdata = job->rport->dd_data; | |
495 | struct lpfc_nodelist *ndlp = rdata->pnode; | |
f1c3b0fc JS |
496 | uint32_t elscmd; |
497 | uint32_t cmdsize; | |
498 | uint32_t rspsize; | |
499 | struct lpfc_iocbq *rspiocbq; | |
500 | struct lpfc_iocbq *cmdiocbq; | |
501 | IOCB_t *rsp; | |
502 | uint16_t rpi = 0; | |
503 | struct lpfc_dmabuf *pcmd; | |
504 | struct lpfc_dmabuf *prsp; | |
505 | struct lpfc_dmabuf *pbuflist = NULL; | |
506 | struct ulp_bde64 *bpl; | |
f1c3b0fc JS |
507 | int request_nseg; |
508 | int reply_nseg; | |
509 | struct scatterlist *sgel = NULL; | |
510 | int numbde; | |
511 | dma_addr_t busaddr; | |
4cc0e56e JS |
512 | struct bsg_job_data *dd_data; |
513 | uint32_t creg_val; | |
f1c3b0fc JS |
514 | int rc = 0; |
515 | ||
516 | /* in case no data is transferred */ | |
517 | job->reply->reply_payload_rcv_len = 0; | |
518 | ||
4cc0e56e JS |
519 | /* allocate our bsg tracking structure */ |
520 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); | |
521 | if (!dd_data) { | |
522 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
523 | "2735 Failed allocation of dd_data\n"); | |
524 | rc = -ENOMEM; | |
525 | goto no_dd_data; | |
526 | } | |
527 | ||
f1c3b0fc JS |
528 | if (!lpfc_nlp_get(ndlp)) { |
529 | rc = -ENODEV; | |
4cc0e56e | 530 | goto free_dd_data; |
f1c3b0fc JS |
531 | } |
532 | ||
533 | elscmd = job->request->rqst_data.r_els.els_code; | |
534 | cmdsize = job->request_payload.payload_len; | |
535 | rspsize = job->reply_payload.payload_len; | |
536 | rspiocbq = lpfc_sli_get_iocbq(phba); | |
537 | if (!rspiocbq) { | |
538 | lpfc_nlp_put(ndlp); | |
539 | rc = -ENOMEM; | |
4cc0e56e | 540 | goto free_dd_data; |
f1c3b0fc JS |
541 | } |
542 | ||
543 | rsp = &rspiocbq->iocb; | |
544 | rpi = ndlp->nlp_rpi; | |
545 | ||
4cc0e56e | 546 | cmdiocbq = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, |
f1c3b0fc | 547 | ndlp->nlp_DID, elscmd); |
f1c3b0fc | 548 | if (!cmdiocbq) { |
4cc0e56e JS |
549 | rc = -EIO; |
550 | goto free_rspiocbq; | |
f1c3b0fc JS |
551 | } |
552 | ||
4cc0e56e | 553 | /* prep els iocb set context1 to the ndlp, context2 to the command |
3b5dd52a JS |
554 | * dmabuf, context3 holds the data dmabuf |
555 | */ | |
f1c3b0fc JS |
556 | pcmd = (struct lpfc_dmabuf *) cmdiocbq->context2; |
557 | prsp = (struct lpfc_dmabuf *) pcmd->list.next; | |
f1c3b0fc JS |
558 | lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys); |
559 | kfree(pcmd); | |
560 | lpfc_mbuf_free(phba, prsp->virt, prsp->phys); | |
561 | kfree(prsp); | |
562 | cmdiocbq->context2 = NULL; | |
563 | ||
564 | pbuflist = (struct lpfc_dmabuf *) cmdiocbq->context3; | |
565 | bpl = (struct ulp_bde64 *) pbuflist->virt; | |
566 | ||
567 | request_nseg = pci_map_sg(phba->pcidev, job->request_payload.sg_list, | |
568 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
f1c3b0fc JS |
569 | for_each_sg(job->request_payload.sg_list, sgel, request_nseg, numbde) { |
570 | busaddr = sg_dma_address(sgel); | |
571 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
572 | bpl->tus.f.bdeSize = sg_dma_len(sgel); | |
573 | bpl->tus.w = cpu_to_le32(bpl->tus.w); | |
574 | bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr)); | |
575 | bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr)); | |
576 | bpl++; | |
577 | } | |
578 | ||
579 | reply_nseg = pci_map_sg(phba->pcidev, job->reply_payload.sg_list, | |
580 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); | |
581 | for_each_sg(job->reply_payload.sg_list, sgel, reply_nseg, numbde) { | |
582 | busaddr = sg_dma_address(sgel); | |
583 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; | |
584 | bpl->tus.f.bdeSize = sg_dma_len(sgel); | |
585 | bpl->tus.w = cpu_to_le32(bpl->tus.w); | |
586 | bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr)); | |
587 | bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr)); | |
588 | bpl++; | |
589 | } | |
f1c3b0fc JS |
590 | cmdiocbq->iocb.un.elsreq64.bdl.bdeSize = |
591 | (request_nseg + reply_nseg) * sizeof(struct ulp_bde64); | |
3ef6d24c JS |
592 | if (phba->sli_rev == LPFC_SLI_REV4) |
593 | cmdiocbq->iocb.ulpContext = phba->sli4_hba.rpi_ids[rpi]; | |
594 | else | |
595 | cmdiocbq->iocb.ulpContext = rpi; | |
f1c3b0fc JS |
596 | cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC; |
597 | cmdiocbq->context1 = NULL; | |
598 | cmdiocbq->context2 = NULL; | |
599 | ||
4cc0e56e JS |
600 | cmdiocbq->iocb_cmpl = lpfc_bsg_rport_els_cmp; |
601 | cmdiocbq->context1 = dd_data; | |
602 | cmdiocbq->context2 = rspiocbq; | |
603 | dd_data->type = TYPE_IOCB; | |
604 | dd_data->context_un.iocb.cmdiocbq = cmdiocbq; | |
605 | dd_data->context_un.iocb.rspiocbq = rspiocbq; | |
606 | dd_data->context_un.iocb.set_job = job; | |
6eab04a8 | 607 | dd_data->context_un.iocb.bmp = NULL; |
4cc0e56e JS |
608 | dd_data->context_un.iocb.ndlp = ndlp; |
609 | ||
610 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { | |
9940b97b JS |
611 | if (lpfc_readl(phba->HCregaddr, &creg_val)) { |
612 | rc = -EIO; | |
613 | goto linkdown_err; | |
614 | } | |
4cc0e56e JS |
615 | creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); |
616 | writel(creg_val, phba->HCregaddr); | |
617 | readl(phba->HCregaddr); /* flush */ | |
618 | } | |
619 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, 0); | |
f1c3b0fc | 620 | lpfc_nlp_put(ndlp); |
4cc0e56e JS |
621 | if (rc == IOCB_SUCCESS) |
622 | return 0; /* done for now */ | |
2a9bf3d0 | 623 | else if (rc == IOCB_BUSY) |
d439d286 | 624 | rc = -EAGAIN; |
2a9bf3d0 | 625 | else |
d439d286 | 626 | rc = -EIO; |
f1c3b0fc | 627 | |
9940b97b | 628 | linkdown_err: |
4cc0e56e JS |
629 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, |
630 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
631 | pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list, | |
632 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); | |
f1c3b0fc | 633 | |
4cc0e56e | 634 | lpfc_mbuf_free(phba, pbuflist->virt, pbuflist->phys); |
f1c3b0fc | 635 | |
4cc0e56e | 636 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
f1c3b0fc | 637 | |
4cc0e56e JS |
638 | free_rspiocbq: |
639 | lpfc_sli_release_iocbq(phba, rspiocbq); | |
f1c3b0fc | 640 | |
4cc0e56e JS |
641 | free_dd_data: |
642 | kfree(dd_data); | |
f1c3b0fc | 643 | |
4cc0e56e JS |
644 | no_dd_data: |
645 | /* make error code available to userspace */ | |
646 | job->reply->result = rc; | |
647 | job->dd_data = NULL; | |
648 | return rc; | |
f1c3b0fc JS |
649 | } |
650 | ||
3b5dd52a JS |
651 | /** |
652 | * lpfc_bsg_event_free - frees an allocated event structure | |
653 | * @kref: Pointer to a kref. | |
654 | * | |
655 | * Called from kref_put. Back cast the kref into an event structure address. | |
656 | * Free any events to get, delete associated nodes, free any events to see, | |
657 | * free any data then free the event itself. | |
658 | **/ | |
f1c3b0fc | 659 | static void |
4cc0e56e | 660 | lpfc_bsg_event_free(struct kref *kref) |
f1c3b0fc | 661 | { |
4cc0e56e JS |
662 | struct lpfc_bsg_event *evt = container_of(kref, struct lpfc_bsg_event, |
663 | kref); | |
f1c3b0fc JS |
664 | struct event_data *ed; |
665 | ||
666 | list_del(&evt->node); | |
667 | ||
668 | while (!list_empty(&evt->events_to_get)) { | |
669 | ed = list_entry(evt->events_to_get.next, typeof(*ed), node); | |
670 | list_del(&ed->node); | |
671 | kfree(ed->data); | |
672 | kfree(ed); | |
673 | } | |
674 | ||
675 | while (!list_empty(&evt->events_to_see)) { | |
676 | ed = list_entry(evt->events_to_see.next, typeof(*ed), node); | |
677 | list_del(&ed->node); | |
678 | kfree(ed->data); | |
679 | kfree(ed); | |
680 | } | |
681 | ||
682 | kfree(evt); | |
683 | } | |
684 | ||
3b5dd52a JS |
685 | /** |
686 | * lpfc_bsg_event_ref - increments the kref for an event | |
687 | * @evt: Pointer to an event structure. | |
688 | **/ | |
f1c3b0fc | 689 | static inline void |
4cc0e56e | 690 | lpfc_bsg_event_ref(struct lpfc_bsg_event *evt) |
f1c3b0fc | 691 | { |
4cc0e56e | 692 | kref_get(&evt->kref); |
f1c3b0fc JS |
693 | } |
694 | ||
3b5dd52a JS |
695 | /** |
696 | * lpfc_bsg_event_unref - Uses kref_put to free an event structure | |
697 | * @evt: Pointer to an event structure. | |
698 | **/ | |
f1c3b0fc | 699 | static inline void |
4cc0e56e | 700 | lpfc_bsg_event_unref(struct lpfc_bsg_event *evt) |
f1c3b0fc | 701 | { |
4cc0e56e | 702 | kref_put(&evt->kref, lpfc_bsg_event_free); |
f1c3b0fc JS |
703 | } |
704 | ||
3b5dd52a JS |
705 | /** |
706 | * lpfc_bsg_event_new - allocate and initialize a event structure | |
707 | * @ev_mask: Mask of events. | |
708 | * @ev_reg_id: Event reg id. | |
709 | * @ev_req_id: Event request id. | |
710 | **/ | |
4cc0e56e JS |
711 | static struct lpfc_bsg_event * |
712 | lpfc_bsg_event_new(uint32_t ev_mask, int ev_reg_id, uint32_t ev_req_id) | |
713 | { | |
714 | struct lpfc_bsg_event *evt = kzalloc(sizeof(*evt), GFP_KERNEL); | |
f1c3b0fc | 715 | |
4cc0e56e JS |
716 | if (!evt) |
717 | return NULL; | |
718 | ||
719 | INIT_LIST_HEAD(&evt->events_to_get); | |
720 | INIT_LIST_HEAD(&evt->events_to_see); | |
721 | evt->type_mask = ev_mask; | |
722 | evt->req_id = ev_req_id; | |
723 | evt->reg_id = ev_reg_id; | |
724 | evt->wait_time_stamp = jiffies; | |
725 | init_waitqueue_head(&evt->wq); | |
726 | kref_init(&evt->kref); | |
727 | return evt; | |
728 | } | |
729 | ||
3b5dd52a JS |
730 | /** |
731 | * diag_cmd_data_free - Frees an lpfc dma buffer extension | |
732 | * @phba: Pointer to HBA context object. | |
733 | * @mlist: Pointer to an lpfc dma buffer extension. | |
734 | **/ | |
4cc0e56e | 735 | static int |
3b5dd52a | 736 | diag_cmd_data_free(struct lpfc_hba *phba, struct lpfc_dmabufext *mlist) |
4cc0e56e JS |
737 | { |
738 | struct lpfc_dmabufext *mlast; | |
739 | struct pci_dev *pcidev; | |
740 | struct list_head head, *curr, *next; | |
741 | ||
742 | if ((!mlist) || (!lpfc_is_link_up(phba) && | |
743 | (phba->link_flag & LS_LOOPBACK_MODE))) { | |
744 | return 0; | |
745 | } | |
746 | ||
747 | pcidev = phba->pcidev; | |
748 | list_add_tail(&head, &mlist->dma.list); | |
749 | ||
750 | list_for_each_safe(curr, next, &head) { | |
751 | mlast = list_entry(curr, struct lpfc_dmabufext , dma.list); | |
752 | if (mlast->dma.virt) | |
753 | dma_free_coherent(&pcidev->dev, | |
754 | mlast->size, | |
755 | mlast->dma.virt, | |
756 | mlast->dma.phys); | |
757 | kfree(mlast); | |
758 | } | |
759 | return 0; | |
760 | } | |
f1c3b0fc JS |
761 | |
762 | /** | |
763 | * lpfc_bsg_ct_unsol_event - process an unsolicited CT command | |
764 | * @phba: | |
765 | * @pring: | |
766 | * @piocbq: | |
767 | * | |
768 | * This function is called when an unsolicited CT command is received. It | |
4cc0e56e | 769 | * forwards the event to any processes registered to receive CT events. |
3b5dd52a | 770 | **/ |
4fede78f | 771 | int |
f1c3b0fc JS |
772 | lpfc_bsg_ct_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
773 | struct lpfc_iocbq *piocbq) | |
774 | { | |
775 | uint32_t evt_req_id = 0; | |
776 | uint32_t cmd; | |
777 | uint32_t len; | |
778 | struct lpfc_dmabuf *dmabuf = NULL; | |
4cc0e56e | 779 | struct lpfc_bsg_event *evt; |
f1c3b0fc JS |
780 | struct event_data *evt_dat = NULL; |
781 | struct lpfc_iocbq *iocbq; | |
782 | size_t offset = 0; | |
783 | struct list_head head; | |
784 | struct ulp_bde64 *bde; | |
785 | dma_addr_t dma_addr; | |
786 | int i; | |
787 | struct lpfc_dmabuf *bdeBuf1 = piocbq->context2; | |
788 | struct lpfc_dmabuf *bdeBuf2 = piocbq->context3; | |
789 | struct lpfc_hbq_entry *hbqe; | |
790 | struct lpfc_sli_ct_request *ct_req; | |
4cc0e56e | 791 | struct fc_bsg_job *job = NULL; |
4fede78f | 792 | unsigned long flags; |
4cc0e56e | 793 | int size = 0; |
f1c3b0fc JS |
794 | |
795 | INIT_LIST_HEAD(&head); | |
796 | list_add_tail(&head, &piocbq->list); | |
797 | ||
798 | if (piocbq->iocb.ulpBdeCount == 0 || | |
799 | piocbq->iocb.un.cont64[0].tus.f.bdeSize == 0) | |
800 | goto error_ct_unsol_exit; | |
801 | ||
4cc0e56e JS |
802 | if (phba->link_state == LPFC_HBA_ERROR || |
803 | (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE))) | |
804 | goto error_ct_unsol_exit; | |
805 | ||
f1c3b0fc JS |
806 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) |
807 | dmabuf = bdeBuf1; | |
808 | else { | |
809 | dma_addr = getPaddr(piocbq->iocb.un.cont64[0].addrHigh, | |
810 | piocbq->iocb.un.cont64[0].addrLow); | |
811 | dmabuf = lpfc_sli_ringpostbuf_get(phba, pring, dma_addr); | |
812 | } | |
4cc0e56e JS |
813 | if (dmabuf == NULL) |
814 | goto error_ct_unsol_exit; | |
f1c3b0fc JS |
815 | ct_req = (struct lpfc_sli_ct_request *)dmabuf->virt; |
816 | evt_req_id = ct_req->FsType; | |
817 | cmd = ct_req->CommandResponse.bits.CmdRsp; | |
818 | len = ct_req->CommandResponse.bits.Size; | |
819 | if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) | |
820 | lpfc_sli_ringpostbuf_put(phba, pring, dmabuf); | |
821 | ||
4fede78f | 822 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
f1c3b0fc | 823 | list_for_each_entry(evt, &phba->ct_ev_waiters, node) { |
4cc0e56e JS |
824 | if (!(evt->type_mask & FC_REG_CT_EVENT) || |
825 | evt->req_id != evt_req_id) | |
f1c3b0fc JS |
826 | continue; |
827 | ||
4cc0e56e JS |
828 | lpfc_bsg_event_ref(evt); |
829 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
f1c3b0fc | 830 | evt_dat = kzalloc(sizeof(*evt_dat), GFP_KERNEL); |
4cc0e56e JS |
831 | if (evt_dat == NULL) { |
832 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
833 | lpfc_bsg_event_unref(evt); | |
f1c3b0fc JS |
834 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
835 | "2614 Memory allocation failed for " | |
836 | "CT event\n"); | |
837 | break; | |
838 | } | |
839 | ||
f1c3b0fc JS |
840 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
841 | /* take accumulated byte count from the last iocbq */ | |
842 | iocbq = list_entry(head.prev, typeof(*iocbq), list); | |
843 | evt_dat->len = iocbq->iocb.unsli3.rcvsli3.acc_len; | |
844 | } else { | |
845 | list_for_each_entry(iocbq, &head, list) { | |
846 | for (i = 0; i < iocbq->iocb.ulpBdeCount; i++) | |
847 | evt_dat->len += | |
848 | iocbq->iocb.un.cont64[i].tus.f.bdeSize; | |
849 | } | |
850 | } | |
851 | ||
852 | evt_dat->data = kzalloc(evt_dat->len, GFP_KERNEL); | |
4cc0e56e | 853 | if (evt_dat->data == NULL) { |
f1c3b0fc JS |
854 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
855 | "2615 Memory allocation failed for " | |
856 | "CT event data, size %d\n", | |
857 | evt_dat->len); | |
858 | kfree(evt_dat); | |
4fede78f | 859 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
4cc0e56e | 860 | lpfc_bsg_event_unref(evt); |
4fede78f | 861 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
f1c3b0fc JS |
862 | goto error_ct_unsol_exit; |
863 | } | |
864 | ||
865 | list_for_each_entry(iocbq, &head, list) { | |
4cc0e56e | 866 | size = 0; |
f1c3b0fc JS |
867 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
868 | bdeBuf1 = iocbq->context2; | |
869 | bdeBuf2 = iocbq->context3; | |
870 | } | |
871 | for (i = 0; i < iocbq->iocb.ulpBdeCount; i++) { | |
f1c3b0fc JS |
872 | if (phba->sli3_options & |
873 | LPFC_SLI3_HBQ_ENABLED) { | |
874 | if (i == 0) { | |
875 | hbqe = (struct lpfc_hbq_entry *) | |
876 | &iocbq->iocb.un.ulpWord[0]; | |
877 | size = hbqe->bde.tus.f.bdeSize; | |
878 | dmabuf = bdeBuf1; | |
879 | } else if (i == 1) { | |
880 | hbqe = (struct lpfc_hbq_entry *) | |
881 | &iocbq->iocb.unsli3. | |
882 | sli3Words[4]; | |
883 | size = hbqe->bde.tus.f.bdeSize; | |
884 | dmabuf = bdeBuf2; | |
885 | } | |
886 | if ((offset + size) > evt_dat->len) | |
887 | size = evt_dat->len - offset; | |
888 | } else { | |
889 | size = iocbq->iocb.un.cont64[i]. | |
890 | tus.f.bdeSize; | |
891 | bde = &iocbq->iocb.un.cont64[i]; | |
892 | dma_addr = getPaddr(bde->addrHigh, | |
893 | bde->addrLow); | |
894 | dmabuf = lpfc_sli_ringpostbuf_get(phba, | |
895 | pring, dma_addr); | |
896 | } | |
897 | if (!dmabuf) { | |
898 | lpfc_printf_log(phba, KERN_ERR, | |
899 | LOG_LIBDFC, "2616 No dmabuf " | |
900 | "found for iocbq 0x%p\n", | |
901 | iocbq); | |
902 | kfree(evt_dat->data); | |
903 | kfree(evt_dat); | |
4fede78f JS |
904 | spin_lock_irqsave(&phba->ct_ev_lock, |
905 | flags); | |
4cc0e56e | 906 | lpfc_bsg_event_unref(evt); |
4fede78f JS |
907 | spin_unlock_irqrestore( |
908 | &phba->ct_ev_lock, flags); | |
f1c3b0fc JS |
909 | goto error_ct_unsol_exit; |
910 | } | |
911 | memcpy((char *)(evt_dat->data) + offset, | |
912 | dmabuf->virt, size); | |
913 | offset += size; | |
914 | if (evt_req_id != SLI_CT_ELX_LOOPBACK && | |
915 | !(phba->sli3_options & | |
916 | LPFC_SLI3_HBQ_ENABLED)) { | |
917 | lpfc_sli_ringpostbuf_put(phba, pring, | |
918 | dmabuf); | |
919 | } else { | |
920 | switch (cmd) { | |
4cc0e56e | 921 | case ELX_LOOPBACK_DATA: |
1b51197d JS |
922 | if (phba->sli_rev < |
923 | LPFC_SLI_REV4) | |
924 | diag_cmd_data_free(phba, | |
925 | (struct lpfc_dmabufext | |
926 | *)dmabuf); | |
4cc0e56e | 927 | break; |
f1c3b0fc | 928 | case ELX_LOOPBACK_XRI_SETUP: |
4cc0e56e JS |
929 | if ((phba->sli_rev == |
930 | LPFC_SLI_REV2) || | |
931 | (phba->sli3_options & | |
932 | LPFC_SLI3_HBQ_ENABLED | |
933 | )) { | |
934 | lpfc_in_buf_free(phba, | |
935 | dmabuf); | |
936 | } else { | |
f1c3b0fc JS |
937 | lpfc_post_buffer(phba, |
938 | pring, | |
939 | 1); | |
4cc0e56e | 940 | } |
f1c3b0fc JS |
941 | break; |
942 | default: | |
943 | if (!(phba->sli3_options & | |
944 | LPFC_SLI3_HBQ_ENABLED)) | |
945 | lpfc_post_buffer(phba, | |
946 | pring, | |
947 | 1); | |
948 | break; | |
949 | } | |
950 | } | |
951 | } | |
952 | } | |
953 | ||
4fede78f | 954 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
f1c3b0fc JS |
955 | if (phba->sli_rev == LPFC_SLI_REV4) { |
956 | evt_dat->immed_dat = phba->ctx_idx; | |
957 | phba->ctx_idx = (phba->ctx_idx + 1) % 64; | |
589a52d6 JS |
958 | /* Provide warning for over-run of the ct_ctx array */ |
959 | if (phba->ct_ctx[evt_dat->immed_dat].flags & | |
960 | UNSOL_VALID) | |
961 | lpfc_printf_log(phba, KERN_WARNING, LOG_ELS, | |
962 | "2717 CT context array entry " | |
963 | "[%d] over-run: oxid:x%x, " | |
964 | "sid:x%x\n", phba->ctx_idx, | |
965 | phba->ct_ctx[ | |
966 | evt_dat->immed_dat].oxid, | |
967 | phba->ct_ctx[ | |
968 | evt_dat->immed_dat].SID); | |
7851fe2c JS |
969 | phba->ct_ctx[evt_dat->immed_dat].rxid = |
970 | piocbq->iocb.ulpContext; | |
f1c3b0fc | 971 | phba->ct_ctx[evt_dat->immed_dat].oxid = |
7851fe2c | 972 | piocbq->iocb.unsli3.rcvsli3.ox_id; |
f1c3b0fc JS |
973 | phba->ct_ctx[evt_dat->immed_dat].SID = |
974 | piocbq->iocb.un.rcvels.remoteID; | |
589a52d6 | 975 | phba->ct_ctx[evt_dat->immed_dat].flags = UNSOL_VALID; |
f1c3b0fc JS |
976 | } else |
977 | evt_dat->immed_dat = piocbq->iocb.ulpContext; | |
978 | ||
979 | evt_dat->type = FC_REG_CT_EVENT; | |
980 | list_add(&evt_dat->node, &evt->events_to_see); | |
4cc0e56e JS |
981 | if (evt_req_id == SLI_CT_ELX_LOOPBACK) { |
982 | wake_up_interruptible(&evt->wq); | |
983 | lpfc_bsg_event_unref(evt); | |
f1c3b0fc | 984 | break; |
4cc0e56e JS |
985 | } |
986 | ||
987 | list_move(evt->events_to_see.prev, &evt->events_to_get); | |
988 | lpfc_bsg_event_unref(evt); | |
989 | ||
990 | job = evt->set_job; | |
991 | evt->set_job = NULL; | |
992 | if (job) { | |
993 | job->reply->reply_payload_rcv_len = size; | |
994 | /* make error code available to userspace */ | |
995 | job->reply->result = 0; | |
996 | job->dd_data = NULL; | |
997 | /* complete the job back to userspace */ | |
998 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
999 | job->job_done(job); | |
1000 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
1001 | } | |
f1c3b0fc | 1002 | } |
4fede78f | 1003 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
f1c3b0fc JS |
1004 | |
1005 | error_ct_unsol_exit: | |
1006 | if (!list_empty(&head)) | |
1007 | list_del(&head); | |
1b51197d JS |
1008 | if ((phba->sli_rev < LPFC_SLI_REV4) && |
1009 | (evt_req_id == SLI_CT_ELX_LOOPBACK)) | |
4cc0e56e | 1010 | return 0; |
4fede78f | 1011 | return 1; |
f1c3b0fc JS |
1012 | } |
1013 | ||
1014 | /** | |
4cc0e56e | 1015 | * lpfc_bsg_hba_set_event - process a SET_EVENT bsg vendor command |
f1c3b0fc | 1016 | * @job: SET_EVENT fc_bsg_job |
3b5dd52a | 1017 | **/ |
f1c3b0fc | 1018 | static int |
4cc0e56e | 1019 | lpfc_bsg_hba_set_event(struct fc_bsg_job *job) |
f1c3b0fc JS |
1020 | { |
1021 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
1022 | struct lpfc_hba *phba = vport->phba; | |
1023 | struct set_ct_event *event_req; | |
4cc0e56e | 1024 | struct lpfc_bsg_event *evt; |
f1c3b0fc | 1025 | int rc = 0; |
4cc0e56e JS |
1026 | struct bsg_job_data *dd_data = NULL; |
1027 | uint32_t ev_mask; | |
1028 | unsigned long flags; | |
f1c3b0fc JS |
1029 | |
1030 | if (job->request_len < | |
1031 | sizeof(struct fc_bsg_request) + sizeof(struct set_ct_event)) { | |
1032 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1033 | "2612 Received SET_CT_EVENT below minimum " | |
1034 | "size\n"); | |
4cc0e56e JS |
1035 | rc = -EINVAL; |
1036 | goto job_error; | |
1037 | } | |
1038 | ||
1039 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); | |
1040 | if (dd_data == NULL) { | |
1041 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1042 | "2734 Failed allocation of dd_data\n"); | |
1043 | rc = -ENOMEM; | |
1044 | goto job_error; | |
f1c3b0fc JS |
1045 | } |
1046 | ||
1047 | event_req = (struct set_ct_event *) | |
1048 | job->request->rqst_data.h_vendor.vendor_cmd; | |
4cc0e56e JS |
1049 | ev_mask = ((uint32_t)(unsigned long)event_req->type_mask & |
1050 | FC_REG_EVENT_MASK); | |
4fede78f | 1051 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
f1c3b0fc JS |
1052 | list_for_each_entry(evt, &phba->ct_ev_waiters, node) { |
1053 | if (evt->reg_id == event_req->ev_reg_id) { | |
4cc0e56e | 1054 | lpfc_bsg_event_ref(evt); |
f1c3b0fc JS |
1055 | evt->wait_time_stamp = jiffies; |
1056 | break; | |
1057 | } | |
1058 | } | |
4fede78f | 1059 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
f1c3b0fc JS |
1060 | |
1061 | if (&evt->node == &phba->ct_ev_waiters) { | |
1062 | /* no event waiting struct yet - first call */ | |
4cc0e56e | 1063 | evt = lpfc_bsg_event_new(ev_mask, event_req->ev_reg_id, |
f1c3b0fc JS |
1064 | event_req->ev_req_id); |
1065 | if (!evt) { | |
1066 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1067 | "2617 Failed allocation of event " | |
1068 | "waiter\n"); | |
4cc0e56e JS |
1069 | rc = -ENOMEM; |
1070 | goto job_error; | |
f1c3b0fc JS |
1071 | } |
1072 | ||
4fede78f | 1073 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
f1c3b0fc | 1074 | list_add(&evt->node, &phba->ct_ev_waiters); |
4cc0e56e JS |
1075 | lpfc_bsg_event_ref(evt); |
1076 | evt->wait_time_stamp = jiffies; | |
4fede78f | 1077 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
f1c3b0fc JS |
1078 | } |
1079 | ||
4fede78f | 1080 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
4cc0e56e JS |
1081 | evt->waiting = 1; |
1082 | dd_data->type = TYPE_EVT; | |
1083 | dd_data->context_un.evt = evt; | |
1084 | evt->set_job = job; /* for unsolicited command */ | |
1085 | job->dd_data = dd_data; /* for fc transport timeout callback*/ | |
4fede78f | 1086 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
4cc0e56e | 1087 | return 0; /* call job done later */ |
f1c3b0fc | 1088 | |
4cc0e56e JS |
1089 | job_error: |
1090 | if (dd_data != NULL) | |
1091 | kfree(dd_data); | |
f1c3b0fc | 1092 | |
4cc0e56e JS |
1093 | job->dd_data = NULL; |
1094 | return rc; | |
f1c3b0fc JS |
1095 | } |
1096 | ||
1097 | /** | |
4cc0e56e | 1098 | * lpfc_bsg_hba_get_event - process a GET_EVENT bsg vendor command |
f1c3b0fc | 1099 | * @job: GET_EVENT fc_bsg_job |
3b5dd52a | 1100 | **/ |
f1c3b0fc | 1101 | static int |
4cc0e56e | 1102 | lpfc_bsg_hba_get_event(struct fc_bsg_job *job) |
f1c3b0fc JS |
1103 | { |
1104 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
1105 | struct lpfc_hba *phba = vport->phba; | |
1106 | struct get_ct_event *event_req; | |
1107 | struct get_ct_event_reply *event_reply; | |
4cc0e56e | 1108 | struct lpfc_bsg_event *evt; |
f1c3b0fc | 1109 | struct event_data *evt_dat = NULL; |
4fede78f | 1110 | unsigned long flags; |
4cc0e56e | 1111 | uint32_t rc = 0; |
f1c3b0fc JS |
1112 | |
1113 | if (job->request_len < | |
1114 | sizeof(struct fc_bsg_request) + sizeof(struct get_ct_event)) { | |
1115 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1116 | "2613 Received GET_CT_EVENT request below " | |
1117 | "minimum size\n"); | |
4cc0e56e JS |
1118 | rc = -EINVAL; |
1119 | goto job_error; | |
f1c3b0fc JS |
1120 | } |
1121 | ||
1122 | event_req = (struct get_ct_event *) | |
1123 | job->request->rqst_data.h_vendor.vendor_cmd; | |
1124 | ||
1125 | event_reply = (struct get_ct_event_reply *) | |
1126 | job->reply->reply_data.vendor_reply.vendor_rsp; | |
4fede78f | 1127 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
f1c3b0fc JS |
1128 | list_for_each_entry(evt, &phba->ct_ev_waiters, node) { |
1129 | if (evt->reg_id == event_req->ev_reg_id) { | |
1130 | if (list_empty(&evt->events_to_get)) | |
1131 | break; | |
4cc0e56e | 1132 | lpfc_bsg_event_ref(evt); |
f1c3b0fc JS |
1133 | evt->wait_time_stamp = jiffies; |
1134 | evt_dat = list_entry(evt->events_to_get.prev, | |
1135 | struct event_data, node); | |
1136 | list_del(&evt_dat->node); | |
1137 | break; | |
1138 | } | |
1139 | } | |
4fede78f | 1140 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
f1c3b0fc | 1141 | |
4cc0e56e JS |
1142 | /* The app may continue to ask for event data until it gets |
1143 | * an error indicating that there isn't anymore | |
1144 | */ | |
1145 | if (evt_dat == NULL) { | |
f1c3b0fc JS |
1146 | job->reply->reply_payload_rcv_len = 0; |
1147 | rc = -ENOENT; | |
4cc0e56e | 1148 | goto job_error; |
f1c3b0fc JS |
1149 | } |
1150 | ||
4cc0e56e JS |
1151 | if (evt_dat->len > job->request_payload.payload_len) { |
1152 | evt_dat->len = job->request_payload.payload_len; | |
1153 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1154 | "2618 Truncated event data at %d " | |
1155 | "bytes\n", | |
1156 | job->request_payload.payload_len); | |
f1c3b0fc JS |
1157 | } |
1158 | ||
4cc0e56e | 1159 | event_reply->type = evt_dat->type; |
f1c3b0fc | 1160 | event_reply->immed_data = evt_dat->immed_dat; |
f1c3b0fc JS |
1161 | if (evt_dat->len > 0) |
1162 | job->reply->reply_payload_rcv_len = | |
4cc0e56e JS |
1163 | sg_copy_from_buffer(job->request_payload.sg_list, |
1164 | job->request_payload.sg_cnt, | |
f1c3b0fc JS |
1165 | evt_dat->data, evt_dat->len); |
1166 | else | |
1167 | job->reply->reply_payload_rcv_len = 0; | |
f1c3b0fc | 1168 | |
4cc0e56e | 1169 | if (evt_dat) { |
f1c3b0fc | 1170 | kfree(evt_dat->data); |
4cc0e56e JS |
1171 | kfree(evt_dat); |
1172 | } | |
1173 | ||
4fede78f | 1174 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
4cc0e56e | 1175 | lpfc_bsg_event_unref(evt); |
4fede78f | 1176 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
4cc0e56e JS |
1177 | job->dd_data = NULL; |
1178 | job->reply->result = 0; | |
f1c3b0fc | 1179 | job->job_done(job); |
4cc0e56e | 1180 | return 0; |
f1c3b0fc | 1181 | |
4cc0e56e JS |
1182 | job_error: |
1183 | job->dd_data = NULL; | |
1184 | job->reply->result = rc; | |
f1c3b0fc JS |
1185 | return rc; |
1186 | } | |
1187 | ||
1188 | /** | |
3b5dd52a JS |
1189 | * lpfc_issue_ct_rsp_cmp - lpfc_issue_ct_rsp's completion handler |
1190 | * @phba: Pointer to HBA context object. | |
1191 | * @cmdiocbq: Pointer to command iocb. | |
1192 | * @rspiocbq: Pointer to response iocb. | |
1193 | * | |
1194 | * This function is the completion handler for iocbs issued using | |
1195 | * lpfc_issue_ct_rsp_cmp function. This function is called by the | |
1196 | * ring event handler function without any lock held. This function | |
1197 | * can be called from both worker thread context and interrupt | |
1198 | * context. This function also can be called from other thread which | |
1199 | * cleans up the SLI layer objects. | |
1200 | * This function copy the contents of the response iocb to the | |
1201 | * response iocb memory object provided by the caller of | |
1202 | * lpfc_sli_issue_iocb_wait and then wakes up the thread which | |
1203 | * sleeps for the iocb completion. | |
1204 | **/ | |
1205 | static void | |
1206 | lpfc_issue_ct_rsp_cmp(struct lpfc_hba *phba, | |
1207 | struct lpfc_iocbq *cmdiocbq, | |
1208 | struct lpfc_iocbq *rspiocbq) | |
1209 | { | |
1210 | struct bsg_job_data *dd_data; | |
1211 | struct fc_bsg_job *job; | |
1212 | IOCB_t *rsp; | |
1213 | struct lpfc_dmabuf *bmp; | |
1214 | struct lpfc_nodelist *ndlp; | |
1215 | unsigned long flags; | |
1216 | int rc = 0; | |
1217 | ||
1218 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
be858b65 | 1219 | dd_data = cmdiocbq->context2; |
3b5dd52a JS |
1220 | /* normal completion and timeout crossed paths, already done */ |
1221 | if (!dd_data) { | |
67221a42 | 1222 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
3b5dd52a JS |
1223 | return; |
1224 | } | |
1225 | ||
1226 | job = dd_data->context_un.iocb.set_job; | |
1227 | bmp = dd_data->context_un.iocb.bmp; | |
1228 | rsp = &rspiocbq->iocb; | |
1229 | ndlp = dd_data->context_un.iocb.ndlp; | |
1230 | ||
1231 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, | |
1232 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
1233 | ||
1234 | if (rsp->ulpStatus) { | |
1235 | if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) { | |
1236 | switch (rsp->un.ulpWord[4] & 0xff) { | |
1237 | case IOERR_SEQUENCE_TIMEOUT: | |
1238 | rc = -ETIMEDOUT; | |
1239 | break; | |
1240 | case IOERR_INVALID_RPI: | |
1241 | rc = -EFAULT; | |
1242 | break; | |
1243 | default: | |
1244 | rc = -EACCES; | |
1245 | break; | |
1246 | } | |
1247 | } else | |
1248 | rc = -EACCES; | |
1249 | } else | |
1250 | job->reply->reply_payload_rcv_len = | |
1251 | rsp->un.genreq64.bdl.bdeSize; | |
1252 | ||
1253 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); | |
1254 | lpfc_sli_release_iocbq(phba, cmdiocbq); | |
1255 | lpfc_nlp_put(ndlp); | |
1256 | kfree(bmp); | |
1257 | kfree(dd_data); | |
1258 | /* make error code available to userspace */ | |
1259 | job->reply->result = rc; | |
1260 | job->dd_data = NULL; | |
1261 | /* complete the job back to userspace */ | |
1262 | job->job_done(job); | |
1263 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
1264 | return; | |
1265 | } | |
1266 | ||
1267 | /** | |
1268 | * lpfc_issue_ct_rsp - issue a ct response | |
1269 | * @phba: Pointer to HBA context object. | |
1270 | * @job: Pointer to the job object. | |
1271 | * @tag: tag index value into the ports context exchange array. | |
1272 | * @bmp: Pointer to a dma buffer descriptor. | |
1273 | * @num_entry: Number of enties in the bde. | |
1274 | **/ | |
f1c3b0fc | 1275 | static int |
3b5dd52a JS |
1276 | lpfc_issue_ct_rsp(struct lpfc_hba *phba, struct fc_bsg_job *job, uint32_t tag, |
1277 | struct lpfc_dmabuf *bmp, int num_entry) | |
f1c3b0fc | 1278 | { |
3b5dd52a JS |
1279 | IOCB_t *icmd; |
1280 | struct lpfc_iocbq *ctiocb = NULL; | |
1281 | int rc = 0; | |
1282 | struct lpfc_nodelist *ndlp = NULL; | |
1283 | struct bsg_job_data *dd_data; | |
1284 | uint32_t creg_val; | |
f1c3b0fc | 1285 | |
3b5dd52a JS |
1286 | /* allocate our bsg tracking structure */ |
1287 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); | |
1288 | if (!dd_data) { | |
1289 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1290 | "2736 Failed allocation of dd_data\n"); | |
1291 | rc = -ENOMEM; | |
1292 | goto no_dd_data; | |
1293 | } | |
f1c3b0fc | 1294 | |
3b5dd52a JS |
1295 | /* Allocate buffer for command iocb */ |
1296 | ctiocb = lpfc_sli_get_iocbq(phba); | |
1297 | if (!ctiocb) { | |
d439d286 | 1298 | rc = -ENOMEM; |
3b5dd52a JS |
1299 | goto no_ctiocb; |
1300 | } | |
1301 | ||
1302 | icmd = &ctiocb->iocb; | |
1303 | icmd->un.xseq64.bdl.ulpIoTag32 = 0; | |
1304 | icmd->un.xseq64.bdl.addrHigh = putPaddrHigh(bmp->phys); | |
1305 | icmd->un.xseq64.bdl.addrLow = putPaddrLow(bmp->phys); | |
1306 | icmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; | |
1307 | icmd->un.xseq64.bdl.bdeSize = (num_entry * sizeof(struct ulp_bde64)); | |
1308 | icmd->un.xseq64.w5.hcsw.Fctl = (LS | LA); | |
1309 | icmd->un.xseq64.w5.hcsw.Dfctl = 0; | |
1310 | icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_SOL_CTL; | |
1311 | icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT; | |
1312 | ||
1313 | /* Fill in rest of iocb */ | |
1314 | icmd->ulpCommand = CMD_XMIT_SEQUENCE64_CX; | |
1315 | icmd->ulpBdeCount = 1; | |
1316 | icmd->ulpLe = 1; | |
1317 | icmd->ulpClass = CLASS3; | |
1318 | if (phba->sli_rev == LPFC_SLI_REV4) { | |
1319 | /* Do not issue unsol response if oxid not marked as valid */ | |
1320 | if (!(phba->ct_ctx[tag].flags & UNSOL_VALID)) { | |
1321 | rc = IOCB_ERROR; | |
1322 | goto issue_ct_rsp_exit; | |
1323 | } | |
7851fe2c JS |
1324 | icmd->ulpContext = phba->ct_ctx[tag].rxid; |
1325 | icmd->unsli3.rcvsli3.ox_id = phba->ct_ctx[tag].oxid; | |
3b5dd52a JS |
1326 | ndlp = lpfc_findnode_did(phba->pport, phba->ct_ctx[tag].SID); |
1327 | if (!ndlp) { | |
1328 | lpfc_printf_log(phba, KERN_WARNING, LOG_ELS, | |
1329 | "2721 ndlp null for oxid %x SID %x\n", | |
1330 | icmd->ulpContext, | |
1331 | phba->ct_ctx[tag].SID); | |
1332 | rc = IOCB_ERROR; | |
1333 | goto issue_ct_rsp_exit; | |
1334 | } | |
589a52d6 JS |
1335 | |
1336 | /* Check if the ndlp is active */ | |
1337 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { | |
1338 | rc = -IOCB_ERROR; | |
1339 | goto issue_ct_rsp_exit; | |
1340 | } | |
1341 | ||
1342 | /* get a refernece count so the ndlp doesn't go away while | |
1343 | * we respond | |
1344 | */ | |
1345 | if (!lpfc_nlp_get(ndlp)) { | |
1346 | rc = -IOCB_ERROR; | |
1347 | goto issue_ct_rsp_exit; | |
1348 | } | |
1349 | ||
7851fe2c | 1350 | icmd->un.ulpWord[3] = |
6d368e53 JS |
1351 | phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; |
1352 | ||
3b5dd52a JS |
1353 | /* The exchange is done, mark the entry as invalid */ |
1354 | phba->ct_ctx[tag].flags &= ~UNSOL_VALID; | |
1355 | } else | |
1356 | icmd->ulpContext = (ushort) tag; | |
1357 | ||
1358 | icmd->ulpTimeout = phba->fc_ratov * 2; | |
1359 | ||
1360 | /* Xmit CT response on exchange <xid> */ | |
1361 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS, | |
7851fe2c JS |
1362 | "2722 Xmit CT response on exchange x%x Data: x%x x%x x%x\n", |
1363 | icmd->ulpContext, icmd->ulpIoTag, tag, phba->link_state); | |
3b5dd52a JS |
1364 | |
1365 | ctiocb->iocb_cmpl = NULL; | |
1366 | ctiocb->iocb_flag |= LPFC_IO_LIBDFC; | |
1367 | ctiocb->vport = phba->pport; | |
1368 | ctiocb->context3 = bmp; | |
1369 | ||
1370 | ctiocb->iocb_cmpl = lpfc_issue_ct_rsp_cmp; | |
be858b65 JS |
1371 | ctiocb->context2 = dd_data; |
1372 | ctiocb->context1 = ndlp; | |
3b5dd52a JS |
1373 | dd_data->type = TYPE_IOCB; |
1374 | dd_data->context_un.iocb.cmdiocbq = ctiocb; | |
1375 | dd_data->context_un.iocb.rspiocbq = NULL; | |
1376 | dd_data->context_un.iocb.set_job = job; | |
1377 | dd_data->context_un.iocb.bmp = bmp; | |
1378 | dd_data->context_un.iocb.ndlp = ndlp; | |
1379 | ||
1380 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { | |
9940b97b JS |
1381 | if (lpfc_readl(phba->HCregaddr, &creg_val)) { |
1382 | rc = -IOCB_ERROR; | |
1383 | goto issue_ct_rsp_exit; | |
1384 | } | |
3b5dd52a JS |
1385 | creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); |
1386 | writel(creg_val, phba->HCregaddr); | |
1387 | readl(phba->HCregaddr); /* flush */ | |
f1c3b0fc | 1388 | } |
4cc0e56e | 1389 | |
3b5dd52a JS |
1390 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0); |
1391 | ||
1392 | if (rc == IOCB_SUCCESS) | |
1393 | return 0; /* done for now */ | |
1394 | ||
1395 | issue_ct_rsp_exit: | |
1396 | lpfc_sli_release_iocbq(phba, ctiocb); | |
1397 | no_ctiocb: | |
1398 | kfree(dd_data); | |
1399 | no_dd_data: | |
4cc0e56e | 1400 | return rc; |
f1c3b0fc JS |
1401 | } |
1402 | ||
1403 | /** | |
3b5dd52a JS |
1404 | * lpfc_bsg_send_mgmt_rsp - process a SEND_MGMT_RESP bsg vendor command |
1405 | * @job: SEND_MGMT_RESP fc_bsg_job | |
1406 | **/ | |
1407 | static int | |
1408 | lpfc_bsg_send_mgmt_rsp(struct fc_bsg_job *job) | |
f1c3b0fc | 1409 | { |
3b5dd52a JS |
1410 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; |
1411 | struct lpfc_hba *phba = vport->phba; | |
1412 | struct send_mgmt_resp *mgmt_resp = (struct send_mgmt_resp *) | |
1413 | job->request->rqst_data.h_vendor.vendor_cmd; | |
1414 | struct ulp_bde64 *bpl; | |
1415 | struct lpfc_dmabuf *bmp = NULL; | |
1416 | struct scatterlist *sgel = NULL; | |
1417 | int request_nseg; | |
1418 | int numbde; | |
1419 | dma_addr_t busaddr; | |
1420 | uint32_t tag = mgmt_resp->tag; | |
1421 | unsigned long reqbfrcnt = | |
1422 | (unsigned long)job->request_payload.payload_len; | |
1423 | int rc = 0; | |
f1c3b0fc | 1424 | |
3b5dd52a JS |
1425 | /* in case no data is transferred */ |
1426 | job->reply->reply_payload_rcv_len = 0; | |
1427 | ||
1428 | if (!reqbfrcnt || (reqbfrcnt > (80 * BUF_SZ_4K))) { | |
1429 | rc = -ERANGE; | |
1430 | goto send_mgmt_rsp_exit; | |
1431 | } | |
1432 | ||
1433 | bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
1434 | if (!bmp) { | |
1435 | rc = -ENOMEM; | |
1436 | goto send_mgmt_rsp_exit; | |
1437 | } | |
1438 | ||
1439 | bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys); | |
1440 | if (!bmp->virt) { | |
1441 | rc = -ENOMEM; | |
1442 | goto send_mgmt_rsp_free_bmp; | |
1443 | } | |
1444 | ||
1445 | INIT_LIST_HEAD(&bmp->list); | |
1446 | bpl = (struct ulp_bde64 *) bmp->virt; | |
1447 | request_nseg = pci_map_sg(phba->pcidev, job->request_payload.sg_list, | |
1448 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
1449 | for_each_sg(job->request_payload.sg_list, sgel, request_nseg, numbde) { | |
1450 | busaddr = sg_dma_address(sgel); | |
1451 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
1452 | bpl->tus.f.bdeSize = sg_dma_len(sgel); | |
1453 | bpl->tus.w = cpu_to_le32(bpl->tus.w); | |
1454 | bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr)); | |
1455 | bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr)); | |
1456 | bpl++; | |
f1c3b0fc JS |
1457 | } |
1458 | ||
3b5dd52a JS |
1459 | rc = lpfc_issue_ct_rsp(phba, job, tag, bmp, request_nseg); |
1460 | ||
1461 | if (rc == IOCB_SUCCESS) | |
1462 | return 0; /* done for now */ | |
1463 | ||
1464 | /* TBD need to handle a timeout */ | |
1465 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, | |
1466 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
1467 | rc = -EACCES; | |
1468 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); | |
1469 | ||
1470 | send_mgmt_rsp_free_bmp: | |
1471 | kfree(bmp); | |
1472 | send_mgmt_rsp_exit: | |
1473 | /* make error code available to userspace */ | |
1474 | job->reply->result = rc; | |
1475 | job->dd_data = NULL; | |
f1c3b0fc JS |
1476 | return rc; |
1477 | } | |
1478 | ||
1479 | /** | |
7ad20aa9 JS |
1480 | * lpfc_bsg_diag_mode_enter - process preparing into device diag loopback mode |
1481 | * @phba: Pointer to HBA context object. | |
7ad20aa9 JS |
1482 | * |
1483 | * This function is responsible for preparing driver for diag loopback | |
1484 | * on device. | |
1485 | */ | |
1486 | static int | |
88a2cfbb | 1487 | lpfc_bsg_diag_mode_enter(struct lpfc_hba *phba) |
7ad20aa9 JS |
1488 | { |
1489 | struct lpfc_vport **vports; | |
1490 | struct Scsi_Host *shost; | |
1491 | struct lpfc_sli *psli; | |
1492 | struct lpfc_sli_ring *pring; | |
1493 | int i = 0; | |
1494 | ||
1495 | psli = &phba->sli; | |
1496 | if (!psli) | |
1497 | return -ENODEV; | |
1498 | ||
1499 | pring = &psli->ring[LPFC_FCP_RING]; | |
1500 | if (!pring) | |
1501 | return -ENODEV; | |
1502 | ||
1503 | if ((phba->link_state == LPFC_HBA_ERROR) || | |
1504 | (psli->sli_flag & LPFC_BLOCK_MGMT_IO) || | |
1505 | (!(psli->sli_flag & LPFC_SLI_ACTIVE))) | |
1506 | return -EACCES; | |
1507 | ||
1508 | vports = lpfc_create_vport_work_array(phba); | |
1509 | if (vports) { | |
1510 | for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) { | |
1511 | shost = lpfc_shost_from_vport(vports[i]); | |
1512 | scsi_block_requests(shost); | |
1513 | } | |
1514 | lpfc_destroy_vport_work_array(phba, vports); | |
1515 | } else { | |
1516 | shost = lpfc_shost_from_vport(phba->pport); | |
1517 | scsi_block_requests(shost); | |
1518 | } | |
1519 | ||
1520 | while (pring->txcmplq_cnt) { | |
1521 | if (i++ > 500) /* wait up to 5 seconds */ | |
1522 | break; | |
1523 | msleep(10); | |
1524 | } | |
1525 | return 0; | |
1526 | } | |
1527 | ||
1528 | /** | |
1529 | * lpfc_bsg_diag_mode_exit - exit process from device diag loopback mode | |
1530 | * @phba: Pointer to HBA context object. | |
7ad20aa9 JS |
1531 | * |
1532 | * This function is responsible for driver exit processing of setting up | |
1533 | * diag loopback mode on device. | |
1534 | */ | |
1535 | static void | |
1536 | lpfc_bsg_diag_mode_exit(struct lpfc_hba *phba) | |
1537 | { | |
1538 | struct Scsi_Host *shost; | |
1539 | struct lpfc_vport **vports; | |
1540 | int i; | |
1541 | ||
1542 | vports = lpfc_create_vport_work_array(phba); | |
1543 | if (vports) { | |
1544 | for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) { | |
1545 | shost = lpfc_shost_from_vport(vports[i]); | |
1546 | scsi_unblock_requests(shost); | |
1547 | } | |
1548 | lpfc_destroy_vport_work_array(phba, vports); | |
1549 | } else { | |
1550 | shost = lpfc_shost_from_vport(phba->pport); | |
1551 | scsi_unblock_requests(shost); | |
1552 | } | |
1553 | return; | |
1554 | } | |
1555 | ||
1556 | /** | |
1557 | * lpfc_sli3_bsg_diag_loopback_mode - process an sli3 bsg vendor command | |
1558 | * @phba: Pointer to HBA context object. | |
3b5dd52a | 1559 | * @job: LPFC_BSG_VENDOR_DIAG_MODE |
f1c3b0fc | 1560 | * |
7ad20aa9 JS |
1561 | * This function is responsible for placing an sli3 port into diagnostic |
1562 | * loopback mode in order to perform a diagnostic loopback test. | |
3b5dd52a JS |
1563 | * All new scsi requests are blocked, a small delay is used to allow the |
1564 | * scsi requests to complete then the link is brought down. If the link is | |
1565 | * is placed in loopback mode then scsi requests are again allowed | |
1566 | * so the scsi mid-layer doesn't give up on the port. | |
1567 | * All of this is done in-line. | |
f1c3b0fc | 1568 | */ |
3b5dd52a | 1569 | static int |
7ad20aa9 | 1570 | lpfc_sli3_bsg_diag_loopback_mode(struct lpfc_hba *phba, struct fc_bsg_job *job) |
f1c3b0fc | 1571 | { |
3b5dd52a | 1572 | struct diag_mode_set *loopback_mode; |
3b5dd52a JS |
1573 | uint32_t link_flags; |
1574 | uint32_t timeout; | |
1b51197d | 1575 | LPFC_MBOXQ_t *pmboxq = NULL; |
b76f2dc9 | 1576 | int mbxstatus = MBX_SUCCESS; |
3b5dd52a JS |
1577 | int i = 0; |
1578 | int rc = 0; | |
f1c3b0fc | 1579 | |
3b5dd52a JS |
1580 | /* no data to return just the return code */ |
1581 | job->reply->reply_payload_rcv_len = 0; | |
1582 | ||
7ad20aa9 JS |
1583 | if (job->request_len < sizeof(struct fc_bsg_request) + |
1584 | sizeof(struct diag_mode_set)) { | |
3b5dd52a | 1585 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
7ad20aa9 JS |
1586 | "2738 Received DIAG MODE request size:%d " |
1587 | "below the minimum size:%d\n", | |
1588 | job->request_len, | |
1589 | (int)(sizeof(struct fc_bsg_request) + | |
1590 | sizeof(struct diag_mode_set))); | |
3b5dd52a JS |
1591 | rc = -EINVAL; |
1592 | goto job_error; | |
1593 | } | |
1594 | ||
88a2cfbb | 1595 | rc = lpfc_bsg_diag_mode_enter(phba); |
7ad20aa9 JS |
1596 | if (rc) |
1597 | goto job_error; | |
1598 | ||
1599 | /* bring the link to diagnostic mode */ | |
3b5dd52a JS |
1600 | loopback_mode = (struct diag_mode_set *) |
1601 | job->request->rqst_data.h_vendor.vendor_cmd; | |
1602 | link_flags = loopback_mode->type; | |
515e0aa2 | 1603 | timeout = loopback_mode->timeout * 100; |
3b5dd52a | 1604 | |
3b5dd52a JS |
1605 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
1606 | if (!pmboxq) { | |
1607 | rc = -ENOMEM; | |
7ad20aa9 | 1608 | goto loopback_mode_exit; |
3b5dd52a | 1609 | } |
3b5dd52a JS |
1610 | memset((void *)pmboxq, 0, sizeof(LPFC_MBOXQ_t)); |
1611 | pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK; | |
1612 | pmboxq->u.mb.mbxOwner = OWN_HOST; | |
1613 | ||
1614 | mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO); | |
1615 | ||
1616 | if ((mbxstatus == MBX_SUCCESS) && (pmboxq->u.mb.mbxStatus == 0)) { | |
1617 | /* wait for link down before proceeding */ | |
1618 | i = 0; | |
1619 | while (phba->link_state != LPFC_LINK_DOWN) { | |
1620 | if (i++ > timeout) { | |
1621 | rc = -ETIMEDOUT; | |
1622 | goto loopback_mode_exit; | |
1623 | } | |
3b5dd52a JS |
1624 | msleep(10); |
1625 | } | |
1626 | ||
1627 | memset((void *)pmboxq, 0, sizeof(LPFC_MBOXQ_t)); | |
1628 | if (link_flags == INTERNAL_LOOP_BACK) | |
1629 | pmboxq->u.mb.un.varInitLnk.link_flags = FLAGS_LOCAL_LB; | |
1630 | else | |
1631 | pmboxq->u.mb.un.varInitLnk.link_flags = | |
1632 | FLAGS_TOPOLOGY_MODE_LOOP; | |
1633 | ||
1634 | pmboxq->u.mb.mbxCommand = MBX_INIT_LINK; | |
1635 | pmboxq->u.mb.mbxOwner = OWN_HOST; | |
1636 | ||
1637 | mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, | |
1638 | LPFC_MBOX_TMO); | |
1639 | ||
1640 | if ((mbxstatus != MBX_SUCCESS) || (pmboxq->u.mb.mbxStatus)) | |
1641 | rc = -ENODEV; | |
1642 | else { | |
1b51197d | 1643 | spin_lock_irq(&phba->hbalock); |
3b5dd52a | 1644 | phba->link_flag |= LS_LOOPBACK_MODE; |
1b51197d | 1645 | spin_unlock_irq(&phba->hbalock); |
3b5dd52a JS |
1646 | /* wait for the link attention interrupt */ |
1647 | msleep(100); | |
1648 | ||
1649 | i = 0; | |
1650 | while (phba->link_state != LPFC_HBA_READY) { | |
1651 | if (i++ > timeout) { | |
1652 | rc = -ETIMEDOUT; | |
1653 | break; | |
1654 | } | |
1655 | ||
1656 | msleep(10); | |
1657 | } | |
1658 | } | |
1659 | ||
1660 | } else | |
1661 | rc = -ENODEV; | |
1662 | ||
1663 | loopback_mode_exit: | |
7ad20aa9 | 1664 | lpfc_bsg_diag_mode_exit(phba); |
3b5dd52a JS |
1665 | |
1666 | /* | |
1667 | * Let SLI layer release mboxq if mbox command completed after timeout. | |
1668 | */ | |
1b51197d | 1669 | if (pmboxq && mbxstatus != MBX_TIMEOUT) |
3b5dd52a JS |
1670 | mempool_free(pmboxq, phba->mbox_mem_pool); |
1671 | ||
1672 | job_error: | |
1673 | /* make error code available to userspace */ | |
1674 | job->reply->result = rc; | |
1675 | /* complete the job back to userspace if no error */ | |
1676 | if (rc == 0) | |
1677 | job->job_done(job); | |
1678 | return rc; | |
1679 | } | |
1680 | ||
1681 | /** | |
7ad20aa9 JS |
1682 | * lpfc_sli4_bsg_set_link_diag_state - set sli4 link diag state |
1683 | * @phba: Pointer to HBA context object. | |
1684 | * @diag: Flag for set link to diag or nomral operation state. | |
3b5dd52a | 1685 | * |
7ad20aa9 JS |
1686 | * This function is responsible for issuing a sli4 mailbox command for setting |
1687 | * link to either diag state or normal operation state. | |
1688 | */ | |
1689 | static int | |
1690 | lpfc_sli4_bsg_set_link_diag_state(struct lpfc_hba *phba, uint32_t diag) | |
3b5dd52a | 1691 | { |
7ad20aa9 JS |
1692 | LPFC_MBOXQ_t *pmboxq; |
1693 | struct lpfc_mbx_set_link_diag_state *link_diag_state; | |
1694 | uint32_t req_len, alloc_len; | |
1695 | int mbxstatus = MBX_SUCCESS, rc; | |
3b5dd52a | 1696 | |
7ad20aa9 JS |
1697 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
1698 | if (!pmboxq) | |
d439d286 | 1699 | return -ENOMEM; |
3b5dd52a | 1700 | |
7ad20aa9 JS |
1701 | req_len = (sizeof(struct lpfc_mbx_set_link_diag_state) - |
1702 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
1703 | alloc_len = lpfc_sli4_config(phba, pmboxq, LPFC_MBOX_SUBSYSTEM_FCOE, | |
1704 | LPFC_MBOX_OPCODE_FCOE_LINK_DIAG_STATE, | |
1705 | req_len, LPFC_SLI4_MBX_EMBED); | |
1706 | if (alloc_len != req_len) { | |
1707 | rc = -ENOMEM; | |
1708 | goto link_diag_state_set_out; | |
3b5dd52a | 1709 | } |
1b51197d JS |
1710 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
1711 | "3128 Set link to diagnostic state:x%x (x%x/x%x)\n", | |
1712 | diag, phba->sli4_hba.lnk_info.lnk_tp, | |
1713 | phba->sli4_hba.lnk_info.lnk_no); | |
1714 | ||
7ad20aa9 JS |
1715 | link_diag_state = &pmboxq->u.mqe.un.link_diag_state; |
1716 | bf_set(lpfc_mbx_set_diag_state_link_num, &link_diag_state->u.req, | |
1b51197d | 1717 | phba->sli4_hba.lnk_info.lnk_no); |
7ad20aa9 | 1718 | bf_set(lpfc_mbx_set_diag_state_link_type, &link_diag_state->u.req, |
1b51197d | 1719 | phba->sli4_hba.lnk_info.lnk_tp); |
7ad20aa9 JS |
1720 | if (diag) |
1721 | bf_set(lpfc_mbx_set_diag_state_diag, | |
1722 | &link_diag_state->u.req, 1); | |
1723 | else | |
1724 | bf_set(lpfc_mbx_set_diag_state_diag, | |
1725 | &link_diag_state->u.req, 0); | |
3b5dd52a | 1726 | |
7ad20aa9 | 1727 | mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO); |
3b5dd52a | 1728 | |
7ad20aa9 JS |
1729 | if ((mbxstatus == MBX_SUCCESS) && (pmboxq->u.mb.mbxStatus == 0)) |
1730 | rc = 0; | |
1731 | else | |
1732 | rc = -ENODEV; | |
3b5dd52a | 1733 | |
7ad20aa9 JS |
1734 | link_diag_state_set_out: |
1735 | if (pmboxq && (mbxstatus != MBX_TIMEOUT)) | |
1736 | mempool_free(pmboxq, phba->mbox_mem_pool); | |
3b5dd52a | 1737 | |
7ad20aa9 | 1738 | return rc; |
3b5dd52a JS |
1739 | } |
1740 | ||
1b51197d JS |
1741 | /** |
1742 | * lpfc_sli4_bsg_set_internal_loopback - set sli4 internal loopback diagnostic | |
1743 | * @phba: Pointer to HBA context object. | |
1744 | * | |
1745 | * This function is responsible for issuing a sli4 mailbox command for setting | |
1746 | * up internal loopback diagnostic. | |
1747 | */ | |
1748 | static int | |
1749 | lpfc_sli4_bsg_set_internal_loopback(struct lpfc_hba *phba) | |
1750 | { | |
1751 | LPFC_MBOXQ_t *pmboxq; | |
1752 | uint32_t req_len, alloc_len; | |
1753 | struct lpfc_mbx_set_link_diag_loopback *link_diag_loopback; | |
1754 | int mbxstatus = MBX_SUCCESS, rc = 0; | |
1755 | ||
1756 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
1757 | if (!pmboxq) | |
1758 | return -ENOMEM; | |
1759 | req_len = (sizeof(struct lpfc_mbx_set_link_diag_loopback) - | |
1760 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
1761 | alloc_len = lpfc_sli4_config(phba, pmboxq, LPFC_MBOX_SUBSYSTEM_FCOE, | |
1762 | LPFC_MBOX_OPCODE_FCOE_LINK_DIAG_LOOPBACK, | |
1763 | req_len, LPFC_SLI4_MBX_EMBED); | |
1764 | if (alloc_len != req_len) { | |
1765 | mempool_free(pmboxq, phba->mbox_mem_pool); | |
1766 | return -ENOMEM; | |
1767 | } | |
1768 | link_diag_loopback = &pmboxq->u.mqe.un.link_diag_loopback; | |
1769 | bf_set(lpfc_mbx_set_diag_state_link_num, | |
1770 | &link_diag_loopback->u.req, phba->sli4_hba.lnk_info.lnk_no); | |
1771 | bf_set(lpfc_mbx_set_diag_state_link_type, | |
1772 | &link_diag_loopback->u.req, phba->sli4_hba.lnk_info.lnk_tp); | |
1773 | bf_set(lpfc_mbx_set_diag_lpbk_type, &link_diag_loopback->u.req, | |
3ef6d24c | 1774 | LPFC_DIAG_LOOPBACK_TYPE_INTERNAL); |
1b51197d JS |
1775 | |
1776 | mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO); | |
1777 | if ((mbxstatus != MBX_SUCCESS) || (pmboxq->u.mb.mbxStatus)) { | |
1778 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1779 | "3127 Failed setup loopback mode mailbox " | |
1780 | "command, rc:x%x, status:x%x\n", mbxstatus, | |
1781 | pmboxq->u.mb.mbxStatus); | |
1782 | rc = -ENODEV; | |
1783 | } | |
1784 | if (pmboxq && (mbxstatus != MBX_TIMEOUT)) | |
1785 | mempool_free(pmboxq, phba->mbox_mem_pool); | |
1786 | return rc; | |
1787 | } | |
1788 | ||
1789 | /** | |
1790 | * lpfc_sli4_diag_fcport_reg_setup - setup port registrations for diagnostic | |
1791 | * @phba: Pointer to HBA context object. | |
1792 | * | |
1793 | * This function set up SLI4 FC port registrations for diagnostic run, which | |
1794 | * includes all the rpis, vfi, and also vpi. | |
1795 | */ | |
1796 | static int | |
1797 | lpfc_sli4_diag_fcport_reg_setup(struct lpfc_hba *phba) | |
1798 | { | |
1799 | int rc; | |
1800 | ||
1801 | if (phba->pport->fc_flag & FC_VFI_REGISTERED) { | |
1802 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1803 | "3136 Port still had vfi registered: " | |
1804 | "mydid:x%x, fcfi:%d, vfi:%d, vpi:%d\n", | |
1805 | phba->pport->fc_myDID, phba->fcf.fcfi, | |
1806 | phba->sli4_hba.vfi_ids[phba->pport->vfi], | |
1807 | phba->vpi_ids[phba->pport->vpi]); | |
1808 | return -EINVAL; | |
1809 | } | |
1810 | rc = lpfc_issue_reg_vfi(phba->pport); | |
1811 | return rc; | |
1812 | } | |
1813 | ||
3b5dd52a | 1814 | /** |
7ad20aa9 JS |
1815 | * lpfc_sli4_bsg_diag_loopback_mode - process an sli4 bsg vendor command |
1816 | * @phba: Pointer to HBA context object. | |
1817 | * @job: LPFC_BSG_VENDOR_DIAG_MODE | |
3b5dd52a | 1818 | * |
7ad20aa9 JS |
1819 | * This function is responsible for placing an sli4 port into diagnostic |
1820 | * loopback mode in order to perform a diagnostic loopback test. | |
1821 | */ | |
1822 | static int | |
1823 | lpfc_sli4_bsg_diag_loopback_mode(struct lpfc_hba *phba, struct fc_bsg_job *job) | |
3b5dd52a | 1824 | { |
7ad20aa9 | 1825 | struct diag_mode_set *loopback_mode; |
1b51197d JS |
1826 | uint32_t link_flags, timeout; |
1827 | int i, rc = 0; | |
3b5dd52a | 1828 | |
7ad20aa9 JS |
1829 | /* no data to return just the return code */ |
1830 | job->reply->reply_payload_rcv_len = 0; | |
3b5dd52a | 1831 | |
7ad20aa9 JS |
1832 | if (job->request_len < sizeof(struct fc_bsg_request) + |
1833 | sizeof(struct diag_mode_set)) { | |
1834 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1835 | "3011 Received DIAG MODE request size:%d " | |
1836 | "below the minimum size:%d\n", | |
1837 | job->request_len, | |
1838 | (int)(sizeof(struct fc_bsg_request) + | |
1839 | sizeof(struct diag_mode_set))); | |
1840 | rc = -EINVAL; | |
1841 | goto job_error; | |
1842 | } | |
3b5dd52a | 1843 | |
88a2cfbb | 1844 | rc = lpfc_bsg_diag_mode_enter(phba); |
7ad20aa9 JS |
1845 | if (rc) |
1846 | goto job_error; | |
1847 | ||
1b51197d JS |
1848 | /* indicate we are in loobpack diagnostic mode */ |
1849 | spin_lock_irq(&phba->hbalock); | |
1850 | phba->link_flag |= LS_LOOPBACK_MODE; | |
1851 | spin_unlock_irq(&phba->hbalock); | |
1852 | ||
1853 | /* reset port to start frome scratch */ | |
1854 | rc = lpfc_selective_reset(phba); | |
1855 | if (rc) | |
1856 | goto job_error; | |
1857 | ||
7ad20aa9 | 1858 | /* bring the link to diagnostic mode */ |
1b51197d JS |
1859 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
1860 | "3129 Bring link to diagnostic state.\n"); | |
7ad20aa9 JS |
1861 | loopback_mode = (struct diag_mode_set *) |
1862 | job->request->rqst_data.h_vendor.vendor_cmd; | |
1863 | link_flags = loopback_mode->type; | |
1864 | timeout = loopback_mode->timeout * 100; | |
1865 | ||
1866 | rc = lpfc_sli4_bsg_set_link_diag_state(phba, 1); | |
1b51197d JS |
1867 | if (rc) { |
1868 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1869 | "3130 Failed to bring link to diagnostic " | |
1870 | "state, rc:x%x\n", rc); | |
7ad20aa9 | 1871 | goto loopback_mode_exit; |
1b51197d | 1872 | } |
7ad20aa9 JS |
1873 | |
1874 | /* wait for link down before proceeding */ | |
1875 | i = 0; | |
1876 | while (phba->link_state != LPFC_LINK_DOWN) { | |
1877 | if (i++ > timeout) { | |
1878 | rc = -ETIMEDOUT; | |
1b51197d JS |
1879 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
1880 | "3131 Timeout waiting for link to " | |
1881 | "diagnostic mode, timeout:%d ms\n", | |
1882 | timeout * 10); | |
7ad20aa9 JS |
1883 | goto loopback_mode_exit; |
1884 | } | |
1885 | msleep(10); | |
3b5dd52a | 1886 | } |
1b51197d | 1887 | |
7ad20aa9 | 1888 | /* set up loopback mode */ |
1b51197d JS |
1889 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
1890 | "3132 Set up loopback mode:x%x\n", link_flags); | |
1891 | ||
1892 | if (link_flags == INTERNAL_LOOP_BACK) | |
1893 | rc = lpfc_sli4_bsg_set_internal_loopback(phba); | |
1894 | else if (link_flags == EXTERNAL_LOOP_BACK) | |
1895 | rc = lpfc_hba_init_link_fc_topology(phba, | |
1896 | FLAGS_TOPOLOGY_MODE_PT_PT, | |
1897 | MBX_NOWAIT); | |
1898 | else { | |
1899 | rc = -EINVAL; | |
1900 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, | |
1901 | "3141 Loopback mode:x%x not supported\n", | |
1902 | link_flags); | |
7ad20aa9 JS |
1903 | goto loopback_mode_exit; |
1904 | } | |
7ad20aa9 | 1905 | |
1b51197d | 1906 | if (!rc) { |
7ad20aa9 JS |
1907 | /* wait for the link attention interrupt */ |
1908 | msleep(100); | |
1909 | i = 0; | |
1b51197d JS |
1910 | while (phba->link_state < LPFC_LINK_UP) { |
1911 | if (i++ > timeout) { | |
1912 | rc = -ETIMEDOUT; | |
1913 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
1914 | "3137 Timeout waiting for link up " | |
1915 | "in loopback mode, timeout:%d ms\n", | |
1916 | timeout * 10); | |
1917 | break; | |
1918 | } | |
1919 | msleep(10); | |
1920 | } | |
1921 | } | |
1922 | ||
1923 | /* port resource registration setup for loopback diagnostic */ | |
1924 | if (!rc) { | |
1925 | /* set up a none zero myDID for loopback test */ | |
1926 | phba->pport->fc_myDID = 1; | |
1927 | rc = lpfc_sli4_diag_fcport_reg_setup(phba); | |
1928 | } else | |
1929 | goto loopback_mode_exit; | |
1930 | ||
1931 | if (!rc) { | |
1932 | /* wait for the port ready */ | |
1933 | msleep(100); | |
1934 | i = 0; | |
7ad20aa9 JS |
1935 | while (phba->link_state != LPFC_HBA_READY) { |
1936 | if (i++ > timeout) { | |
1937 | rc = -ETIMEDOUT; | |
1b51197d JS |
1938 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
1939 | "3133 Timeout waiting for port " | |
1940 | "loopback mode ready, timeout:%d ms\n", | |
1941 | timeout * 10); | |
7ad20aa9 JS |
1942 | break; |
1943 | } | |
1944 | msleep(10); | |
1945 | } | |
1946 | } | |
1947 | ||
1948 | loopback_mode_exit: | |
1b51197d JS |
1949 | /* clear loopback diagnostic mode */ |
1950 | if (rc) { | |
1951 | spin_lock_irq(&phba->hbalock); | |
1952 | phba->link_flag &= ~LS_LOOPBACK_MODE; | |
1953 | spin_unlock_irq(&phba->hbalock); | |
1954 | } | |
7ad20aa9 JS |
1955 | lpfc_bsg_diag_mode_exit(phba); |
1956 | ||
7ad20aa9 JS |
1957 | job_error: |
1958 | /* make error code available to userspace */ | |
1959 | job->reply->result = rc; | |
1960 | /* complete the job back to userspace if no error */ | |
1961 | if (rc == 0) | |
1962 | job->job_done(job); | |
1963 | return rc; | |
3b5dd52a JS |
1964 | } |
1965 | ||
1966 | /** | |
7ad20aa9 JS |
1967 | * lpfc_bsg_diag_loopback_mode - bsg vendor command for diag loopback mode |
1968 | * @job: LPFC_BSG_VENDOR_DIAG_MODE | |
3b5dd52a | 1969 | * |
7ad20aa9 JS |
1970 | * This function is responsible for responding to check and dispatch bsg diag |
1971 | * command from the user to proper driver action routines. | |
1972 | */ | |
1973 | static int | |
1974 | lpfc_bsg_diag_loopback_mode(struct fc_bsg_job *job) | |
1975 | { | |
1976 | struct Scsi_Host *shost; | |
1977 | struct lpfc_vport *vport; | |
1978 | struct lpfc_hba *phba; | |
1979 | int rc; | |
1980 | ||
1981 | shost = job->shost; | |
1982 | if (!shost) | |
1983 | return -ENODEV; | |
1984 | vport = (struct lpfc_vport *)job->shost->hostdata; | |
1985 | if (!vport) | |
1986 | return -ENODEV; | |
1987 | phba = vport->phba; | |
1988 | if (!phba) | |
1989 | return -ENODEV; | |
1990 | ||
1991 | if (phba->sli_rev < LPFC_SLI_REV4) | |
1992 | rc = lpfc_sli3_bsg_diag_loopback_mode(phba, job); | |
1993 | else if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == | |
1994 | LPFC_SLI_INTF_IF_TYPE_2) | |
1995 | rc = lpfc_sli4_bsg_diag_loopback_mode(phba, job); | |
1996 | else | |
1997 | rc = -ENODEV; | |
1998 | ||
1999 | return rc; | |
7ad20aa9 JS |
2000 | } |
2001 | ||
2002 | /** | |
2003 | * lpfc_sli4_bsg_diag_mode_end - sli4 bsg vendor command for ending diag mode | |
2004 | * @job: LPFC_BSG_VENDOR_DIAG_MODE_END | |
2005 | * | |
2006 | * This function is responsible for responding to check and dispatch bsg diag | |
2007 | * command from the user to proper driver action routines. | |
2008 | */ | |
2009 | static int | |
2010 | lpfc_sli4_bsg_diag_mode_end(struct fc_bsg_job *job) | |
2011 | { | |
2012 | struct Scsi_Host *shost; | |
2013 | struct lpfc_vport *vport; | |
2014 | struct lpfc_hba *phba; | |
1b51197d JS |
2015 | struct diag_mode_set *loopback_mode_end_cmd; |
2016 | uint32_t timeout; | |
2017 | int rc, i; | |
7ad20aa9 JS |
2018 | |
2019 | shost = job->shost; | |
2020 | if (!shost) | |
2021 | return -ENODEV; | |
2022 | vport = (struct lpfc_vport *)job->shost->hostdata; | |
2023 | if (!vport) | |
2024 | return -ENODEV; | |
2025 | phba = vport->phba; | |
2026 | if (!phba) | |
2027 | return -ENODEV; | |
2028 | ||
2029 | if (phba->sli_rev < LPFC_SLI_REV4) | |
2030 | return -ENODEV; | |
2031 | if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != | |
2032 | LPFC_SLI_INTF_IF_TYPE_2) | |
2033 | return -ENODEV; | |
2034 | ||
1b51197d JS |
2035 | /* clear loopback diagnostic mode */ |
2036 | spin_lock_irq(&phba->hbalock); | |
2037 | phba->link_flag &= ~LS_LOOPBACK_MODE; | |
2038 | spin_unlock_irq(&phba->hbalock); | |
2039 | loopback_mode_end_cmd = (struct diag_mode_set *) | |
2040 | job->request->rqst_data.h_vendor.vendor_cmd; | |
2041 | timeout = loopback_mode_end_cmd->timeout * 100; | |
2042 | ||
7ad20aa9 | 2043 | rc = lpfc_sli4_bsg_set_link_diag_state(phba, 0); |
1b51197d JS |
2044 | if (rc) { |
2045 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
2046 | "3139 Failed to bring link to diagnostic " | |
2047 | "state, rc:x%x\n", rc); | |
2048 | goto loopback_mode_end_exit; | |
2049 | } | |
7ad20aa9 | 2050 | |
1b51197d JS |
2051 | /* wait for link down before proceeding */ |
2052 | i = 0; | |
2053 | while (phba->link_state != LPFC_LINK_DOWN) { | |
2054 | if (i++ > timeout) { | |
2055 | rc = -ETIMEDOUT; | |
2056 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
2057 | "3140 Timeout waiting for link to " | |
2058 | "diagnostic mode_end, timeout:%d ms\n", | |
2059 | timeout * 10); | |
2060 | /* there is nothing much we can do here */ | |
2061 | break; | |
2062 | } | |
2063 | msleep(10); | |
2064 | } | |
7ad20aa9 | 2065 | |
1b51197d JS |
2066 | /* reset port resource registrations */ |
2067 | rc = lpfc_selective_reset(phba); | |
2068 | phba->pport->fc_myDID = 0; | |
2069 | ||
2070 | loopback_mode_end_exit: | |
2071 | /* make return code available to userspace */ | |
2072 | job->reply->result = rc; | |
2073 | /* complete the job back to userspace if no error */ | |
2074 | if (rc == 0) | |
2075 | job->job_done(job); | |
7ad20aa9 JS |
2076 | return rc; |
2077 | } | |
2078 | ||
2079 | /** | |
2080 | * lpfc_sli4_bsg_link_diag_test - sli4 bsg vendor command for diag link test | |
2081 | * @job: LPFC_BSG_VENDOR_DIAG_LINK_TEST | |
2082 | * | |
2083 | * This function is to perform SLI4 diag link test request from the user | |
2084 | * applicaiton. | |
2085 | */ | |
2086 | static int | |
2087 | lpfc_sli4_bsg_link_diag_test(struct fc_bsg_job *job) | |
2088 | { | |
2089 | struct Scsi_Host *shost; | |
2090 | struct lpfc_vport *vport; | |
2091 | struct lpfc_hba *phba; | |
2092 | LPFC_MBOXQ_t *pmboxq; | |
2093 | struct sli4_link_diag *link_diag_test_cmd; | |
2094 | uint32_t req_len, alloc_len; | |
2095 | uint32_t timeout; | |
2096 | struct lpfc_mbx_run_link_diag_test *run_link_diag_test; | |
2097 | union lpfc_sli4_cfg_shdr *shdr; | |
2098 | uint32_t shdr_status, shdr_add_status; | |
2099 | struct diag_status *diag_status_reply; | |
2100 | int mbxstatus, rc = 0; | |
2101 | ||
2102 | shost = job->shost; | |
2103 | if (!shost) { | |
2104 | rc = -ENODEV; | |
2105 | goto job_error; | |
2106 | } | |
2107 | vport = (struct lpfc_vport *)job->shost->hostdata; | |
2108 | if (!vport) { | |
2109 | rc = -ENODEV; | |
2110 | goto job_error; | |
2111 | } | |
2112 | phba = vport->phba; | |
2113 | if (!phba) { | |
2114 | rc = -ENODEV; | |
2115 | goto job_error; | |
2116 | } | |
2117 | ||
2118 | if (phba->sli_rev < LPFC_SLI_REV4) { | |
2119 | rc = -ENODEV; | |
2120 | goto job_error; | |
2121 | } | |
2122 | if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != | |
2123 | LPFC_SLI_INTF_IF_TYPE_2) { | |
2124 | rc = -ENODEV; | |
2125 | goto job_error; | |
2126 | } | |
2127 | ||
2128 | if (job->request_len < sizeof(struct fc_bsg_request) + | |
2129 | sizeof(struct sli4_link_diag)) { | |
2130 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
2131 | "3013 Received LINK DIAG TEST request " | |
2132 | " size:%d below the minimum size:%d\n", | |
2133 | job->request_len, | |
2134 | (int)(sizeof(struct fc_bsg_request) + | |
2135 | sizeof(struct sli4_link_diag))); | |
2136 | rc = -EINVAL; | |
2137 | goto job_error; | |
2138 | } | |
2139 | ||
88a2cfbb | 2140 | rc = lpfc_bsg_diag_mode_enter(phba); |
7ad20aa9 JS |
2141 | if (rc) |
2142 | goto job_error; | |
2143 | ||
2144 | link_diag_test_cmd = (struct sli4_link_diag *) | |
2145 | job->request->rqst_data.h_vendor.vendor_cmd; | |
2146 | timeout = link_diag_test_cmd->timeout * 100; | |
2147 | ||
2148 | rc = lpfc_sli4_bsg_set_link_diag_state(phba, 1); | |
2149 | ||
2150 | if (rc) | |
2151 | goto job_error; | |
2152 | ||
2153 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
2154 | if (!pmboxq) { | |
2155 | rc = -ENOMEM; | |
2156 | goto link_diag_test_exit; | |
2157 | } | |
2158 | ||
2159 | req_len = (sizeof(struct lpfc_mbx_set_link_diag_state) - | |
2160 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
2161 | alloc_len = lpfc_sli4_config(phba, pmboxq, LPFC_MBOX_SUBSYSTEM_FCOE, | |
2162 | LPFC_MBOX_OPCODE_FCOE_LINK_DIAG_STATE, | |
2163 | req_len, LPFC_SLI4_MBX_EMBED); | |
2164 | if (alloc_len != req_len) { | |
2165 | rc = -ENOMEM; | |
2166 | goto link_diag_test_exit; | |
2167 | } | |
2168 | run_link_diag_test = &pmboxq->u.mqe.un.link_diag_test; | |
2169 | bf_set(lpfc_mbx_run_diag_test_link_num, &run_link_diag_test->u.req, | |
1b51197d | 2170 | phba->sli4_hba.lnk_info.lnk_no); |
7ad20aa9 | 2171 | bf_set(lpfc_mbx_run_diag_test_link_type, &run_link_diag_test->u.req, |
1b51197d | 2172 | phba->sli4_hba.lnk_info.lnk_tp); |
7ad20aa9 JS |
2173 | bf_set(lpfc_mbx_run_diag_test_test_id, &run_link_diag_test->u.req, |
2174 | link_diag_test_cmd->test_id); | |
2175 | bf_set(lpfc_mbx_run_diag_test_loops, &run_link_diag_test->u.req, | |
2176 | link_diag_test_cmd->loops); | |
2177 | bf_set(lpfc_mbx_run_diag_test_test_ver, &run_link_diag_test->u.req, | |
2178 | link_diag_test_cmd->test_version); | |
2179 | bf_set(lpfc_mbx_run_diag_test_err_act, &run_link_diag_test->u.req, | |
2180 | link_diag_test_cmd->error_action); | |
2181 | ||
2182 | mbxstatus = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); | |
2183 | ||
2184 | shdr = (union lpfc_sli4_cfg_shdr *) | |
2185 | &pmboxq->u.mqe.un.sli4_config.header.cfg_shdr; | |
2186 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
2187 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
2188 | if (shdr_status || shdr_add_status || mbxstatus) { | |
2189 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, | |
2190 | "3010 Run link diag test mailbox failed with " | |
2191 | "mbx_status x%x status x%x, add_status x%x\n", | |
2192 | mbxstatus, shdr_status, shdr_add_status); | |
2193 | } | |
2194 | ||
2195 | diag_status_reply = (struct diag_status *) | |
2196 | job->reply->reply_data.vendor_reply.vendor_rsp; | |
2197 | ||
2198 | if (job->reply_len < | |
2199 | sizeof(struct fc_bsg_request) + sizeof(struct diag_status)) { | |
2200 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
2201 | "3012 Received Run link diag test reply " | |
2202 | "below minimum size (%d): reply_len:%d\n", | |
2203 | (int)(sizeof(struct fc_bsg_request) + | |
2204 | sizeof(struct diag_status)), | |
2205 | job->reply_len); | |
2206 | rc = -EINVAL; | |
2207 | goto job_error; | |
2208 | } | |
2209 | ||
2210 | diag_status_reply->mbox_status = mbxstatus; | |
2211 | diag_status_reply->shdr_status = shdr_status; | |
2212 | diag_status_reply->shdr_add_status = shdr_add_status; | |
2213 | ||
2214 | link_diag_test_exit: | |
2215 | rc = lpfc_sli4_bsg_set_link_diag_state(phba, 0); | |
2216 | ||
2217 | if (pmboxq) | |
2218 | mempool_free(pmboxq, phba->mbox_mem_pool); | |
2219 | ||
2220 | lpfc_bsg_diag_mode_exit(phba); | |
2221 | ||
2222 | job_error: | |
2223 | /* make error code available to userspace */ | |
2224 | job->reply->result = rc; | |
2225 | /* complete the job back to userspace if no error */ | |
2226 | if (rc == 0) | |
2227 | job->job_done(job); | |
2228 | return rc; | |
2229 | } | |
2230 | ||
2231 | /** | |
2232 | * lpfcdiag_loop_self_reg - obtains a remote port login id | |
2233 | * @phba: Pointer to HBA context object | |
2234 | * @rpi: Pointer to a remote port login id | |
2235 | * | |
2236 | * This function obtains a remote port login id so the diag loopback test | |
2237 | * can send and receive its own unsolicited CT command. | |
2238 | **/ | |
2239 | static int lpfcdiag_loop_self_reg(struct lpfc_hba *phba, uint16_t *rpi) | |
2240 | { | |
2241 | LPFC_MBOXQ_t *mbox; | |
2242 | struct lpfc_dmabuf *dmabuff; | |
2243 | int status; | |
2244 | ||
2245 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
2246 | if (!mbox) | |
2247 | return -ENOMEM; | |
2248 | ||
1b51197d JS |
2249 | if (phba->sli_rev < LPFC_SLI_REV4) |
2250 | status = lpfc_reg_rpi(phba, 0, phba->pport->fc_myDID, | |
2251 | (uint8_t *)&phba->pport->fc_sparam, | |
2252 | mbox, *rpi); | |
2253 | else { | |
7ad20aa9 | 2254 | *rpi = lpfc_sli4_alloc_rpi(phba); |
1b51197d JS |
2255 | status = lpfc_reg_rpi(phba, phba->pport->vpi, |
2256 | phba->pport->fc_myDID, | |
2257 | (uint8_t *)&phba->pport->fc_sparam, | |
2258 | mbox, *rpi); | |
2259 | } | |
2260 | ||
7ad20aa9 JS |
2261 | if (status) { |
2262 | mempool_free(mbox, phba->mbox_mem_pool); | |
2263 | if (phba->sli_rev == LPFC_SLI_REV4) | |
2264 | lpfc_sli4_free_rpi(phba, *rpi); | |
2265 | return -ENOMEM; | |
2266 | } | |
2267 | ||
2268 | dmabuff = (struct lpfc_dmabuf *) mbox->context1; | |
2269 | mbox->context1 = NULL; | |
2270 | mbox->context2 = NULL; | |
2271 | status = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); | |
2272 | ||
2273 | if ((status != MBX_SUCCESS) || (mbox->u.mb.mbxStatus)) { | |
2274 | lpfc_mbuf_free(phba, dmabuff->virt, dmabuff->phys); | |
2275 | kfree(dmabuff); | |
2276 | if (status != MBX_TIMEOUT) | |
2277 | mempool_free(mbox, phba->mbox_mem_pool); | |
2278 | if (phba->sli_rev == LPFC_SLI_REV4) | |
2279 | lpfc_sli4_free_rpi(phba, *rpi); | |
2280 | return -ENODEV; | |
2281 | } | |
2282 | ||
1b51197d JS |
2283 | if (phba->sli_rev < LPFC_SLI_REV4) |
2284 | *rpi = mbox->u.mb.un.varWords[0]; | |
7ad20aa9 JS |
2285 | |
2286 | lpfc_mbuf_free(phba, dmabuff->virt, dmabuff->phys); | |
2287 | kfree(dmabuff); | |
2288 | mempool_free(mbox, phba->mbox_mem_pool); | |
2289 | return 0; | |
2290 | } | |
2291 | ||
2292 | /** | |
2293 | * lpfcdiag_loop_self_unreg - unregs from the rpi | |
2294 | * @phba: Pointer to HBA context object | |
2295 | * @rpi: Remote port login id | |
2296 | * | |
2297 | * This function unregisters the rpi obtained in lpfcdiag_loop_self_reg | |
2298 | **/ | |
2299 | static int lpfcdiag_loop_self_unreg(struct lpfc_hba *phba, uint16_t rpi) | |
2300 | { | |
2301 | LPFC_MBOXQ_t *mbox; | |
2302 | int status; | |
2303 | ||
2304 | /* Allocate mboxq structure */ | |
2305 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
2306 | if (mbox == NULL) | |
2307 | return -ENOMEM; | |
2308 | ||
1b51197d JS |
2309 | if (phba->sli_rev < LPFC_SLI_REV4) |
2310 | lpfc_unreg_login(phba, 0, rpi, mbox); | |
2311 | else | |
2312 | lpfc_unreg_login(phba, phba->pport->vpi, | |
2313 | phba->sli4_hba.rpi_ids[rpi], mbox); | |
2314 | ||
7ad20aa9 JS |
2315 | status = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); |
2316 | ||
2317 | if ((status != MBX_SUCCESS) || (mbox->u.mb.mbxStatus)) { | |
2318 | if (status != MBX_TIMEOUT) | |
2319 | mempool_free(mbox, phba->mbox_mem_pool); | |
2320 | return -EIO; | |
2321 | } | |
2322 | mempool_free(mbox, phba->mbox_mem_pool); | |
2323 | if (phba->sli_rev == LPFC_SLI_REV4) | |
2324 | lpfc_sli4_free_rpi(phba, rpi); | |
2325 | return 0; | |
2326 | } | |
2327 | ||
2328 | /** | |
2329 | * lpfcdiag_loop_get_xri - obtains the transmit and receive ids | |
2330 | * @phba: Pointer to HBA context object | |
2331 | * @rpi: Remote port login id | |
2332 | * @txxri: Pointer to transmit exchange id | |
2333 | * @rxxri: Pointer to response exchabge id | |
2334 | * | |
2335 | * This function obtains the transmit and receive ids required to send | |
2336 | * an unsolicited ct command with a payload. A special lpfc FsType and CmdRsp | |
2337 | * flags are used to the unsolicted response handler is able to process | |
2338 | * the ct command sent on the same port. | |
2339 | **/ | |
2340 | static int lpfcdiag_loop_get_xri(struct lpfc_hba *phba, uint16_t rpi, | |
2341 | uint16_t *txxri, uint16_t * rxxri) | |
3b5dd52a JS |
2342 | { |
2343 | struct lpfc_bsg_event *evt; | |
2344 | struct lpfc_iocbq *cmdiocbq, *rspiocbq; | |
2345 | IOCB_t *cmd, *rsp; | |
2346 | struct lpfc_dmabuf *dmabuf; | |
2347 | struct ulp_bde64 *bpl = NULL; | |
2348 | struct lpfc_sli_ct_request *ctreq = NULL; | |
2349 | int ret_val = 0; | |
d439d286 | 2350 | int time_left; |
515e0aa2 | 2351 | int iocb_stat = 0; |
3b5dd52a JS |
2352 | unsigned long flags; |
2353 | ||
2354 | *txxri = 0; | |
2355 | *rxxri = 0; | |
2356 | evt = lpfc_bsg_event_new(FC_REG_CT_EVENT, current->pid, | |
2357 | SLI_CT_ELX_LOOPBACK); | |
2358 | if (!evt) | |
d439d286 | 2359 | return -ENOMEM; |
3b5dd52a JS |
2360 | |
2361 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
2362 | list_add(&evt->node, &phba->ct_ev_waiters); | |
2363 | lpfc_bsg_event_ref(evt); | |
2364 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
2365 | ||
2366 | cmdiocbq = lpfc_sli_get_iocbq(phba); | |
2367 | rspiocbq = lpfc_sli_get_iocbq(phba); | |
2368 | ||
2369 | dmabuf = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
2370 | if (dmabuf) { | |
2371 | dmabuf->virt = lpfc_mbuf_alloc(phba, 0, &dmabuf->phys); | |
c7495937 JS |
2372 | if (dmabuf->virt) { |
2373 | INIT_LIST_HEAD(&dmabuf->list); | |
2374 | bpl = (struct ulp_bde64 *) dmabuf->virt; | |
2375 | memset(bpl, 0, sizeof(*bpl)); | |
2376 | ctreq = (struct lpfc_sli_ct_request *)(bpl + 1); | |
2377 | bpl->addrHigh = | |
2378 | le32_to_cpu(putPaddrHigh(dmabuf->phys + | |
2379 | sizeof(*bpl))); | |
2380 | bpl->addrLow = | |
2381 | le32_to_cpu(putPaddrLow(dmabuf->phys + | |
2382 | sizeof(*bpl))); | |
2383 | bpl->tus.f.bdeFlags = 0; | |
2384 | bpl->tus.f.bdeSize = ELX_LOOPBACK_HEADER_SZ; | |
2385 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
2386 | } | |
3b5dd52a JS |
2387 | } |
2388 | ||
2389 | if (cmdiocbq == NULL || rspiocbq == NULL || | |
c7495937 JS |
2390 | dmabuf == NULL || bpl == NULL || ctreq == NULL || |
2391 | dmabuf->virt == NULL) { | |
d439d286 | 2392 | ret_val = -ENOMEM; |
3b5dd52a JS |
2393 | goto err_get_xri_exit; |
2394 | } | |
2395 | ||
2396 | cmd = &cmdiocbq->iocb; | |
2397 | rsp = &rspiocbq->iocb; | |
2398 | ||
2399 | memset(ctreq, 0, ELX_LOOPBACK_HEADER_SZ); | |
2400 | ||
2401 | ctreq->RevisionId.bits.Revision = SLI_CT_REVISION; | |
2402 | ctreq->RevisionId.bits.InId = 0; | |
2403 | ctreq->FsType = SLI_CT_ELX_LOOPBACK; | |
2404 | ctreq->FsSubType = 0; | |
2405 | ctreq->CommandResponse.bits.CmdRsp = ELX_LOOPBACK_XRI_SETUP; | |
2406 | ctreq->CommandResponse.bits.Size = 0; | |
2407 | ||
2408 | ||
2409 | cmd->un.xseq64.bdl.addrHigh = putPaddrHigh(dmabuf->phys); | |
2410 | cmd->un.xseq64.bdl.addrLow = putPaddrLow(dmabuf->phys); | |
2411 | cmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; | |
2412 | cmd->un.xseq64.bdl.bdeSize = sizeof(*bpl); | |
2413 | ||
2414 | cmd->un.xseq64.w5.hcsw.Fctl = LA; | |
2415 | cmd->un.xseq64.w5.hcsw.Dfctl = 0; | |
2416 | cmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL; | |
2417 | cmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT; | |
2418 | ||
2419 | cmd->ulpCommand = CMD_XMIT_SEQUENCE64_CR; | |
2420 | cmd->ulpBdeCount = 1; | |
2421 | cmd->ulpLe = 1; | |
2422 | cmd->ulpClass = CLASS3; | |
2423 | cmd->ulpContext = rpi; | |
2424 | ||
2425 | cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC; | |
2426 | cmdiocbq->vport = phba->pport; | |
2427 | ||
d439d286 | 2428 | iocb_stat = lpfc_sli_issue_iocb_wait(phba, LPFC_ELS_RING, cmdiocbq, |
3b5dd52a JS |
2429 | rspiocbq, |
2430 | (phba->fc_ratov * 2) | |
2431 | + LPFC_DRVR_TIMEOUT); | |
d439d286 JS |
2432 | if (iocb_stat) { |
2433 | ret_val = -EIO; | |
3b5dd52a | 2434 | goto err_get_xri_exit; |
d439d286 | 2435 | } |
3b5dd52a JS |
2436 | *txxri = rsp->ulpContext; |
2437 | ||
2438 | evt->waiting = 1; | |
2439 | evt->wait_time_stamp = jiffies; | |
d439d286 | 2440 | time_left = wait_event_interruptible_timeout( |
3b5dd52a JS |
2441 | evt->wq, !list_empty(&evt->events_to_see), |
2442 | ((phba->fc_ratov * 2) + LPFC_DRVR_TIMEOUT) * HZ); | |
2443 | if (list_empty(&evt->events_to_see)) | |
d439d286 | 2444 | ret_val = (time_left) ? -EINTR : -ETIMEDOUT; |
3b5dd52a | 2445 | else { |
3b5dd52a JS |
2446 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
2447 | list_move(evt->events_to_see.prev, &evt->events_to_get); | |
2448 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
2449 | *rxxri = (list_entry(evt->events_to_get.prev, | |
2450 | typeof(struct event_data), | |
2451 | node))->immed_dat; | |
2452 | } | |
2453 | evt->waiting = 0; | |
2454 | ||
2455 | err_get_xri_exit: | |
2456 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
2457 | lpfc_bsg_event_unref(evt); /* release ref */ | |
2458 | lpfc_bsg_event_unref(evt); /* delete */ | |
2459 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
2460 | ||
2461 | if (dmabuf) { | |
2462 | if (dmabuf->virt) | |
2463 | lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys); | |
2464 | kfree(dmabuf); | |
2465 | } | |
2466 | ||
d439d286 | 2467 | if (cmdiocbq && (iocb_stat != IOCB_TIMEDOUT)) |
3b5dd52a JS |
2468 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
2469 | if (rspiocbq) | |
2470 | lpfc_sli_release_iocbq(phba, rspiocbq); | |
2471 | return ret_val; | |
2472 | } | |
2473 | ||
7ad20aa9 JS |
2474 | /** |
2475 | * lpfc_bsg_dma_page_alloc - allocate a bsg mbox page sized dma buffers | |
2476 | * @phba: Pointer to HBA context object | |
2477 | * | |
2478 | * This function allocates BSG_MBOX_SIZE (4KB) page size dma buffer and. | |
2479 | * retruns the pointer to the buffer. | |
2480 | **/ | |
2481 | static struct lpfc_dmabuf * | |
2482 | lpfc_bsg_dma_page_alloc(struct lpfc_hba *phba) | |
2483 | { | |
2484 | struct lpfc_dmabuf *dmabuf; | |
2485 | struct pci_dev *pcidev = phba->pcidev; | |
2486 | ||
2487 | /* allocate dma buffer struct */ | |
2488 | dmabuf = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
2489 | if (!dmabuf) | |
2490 | return NULL; | |
2491 | ||
2492 | INIT_LIST_HEAD(&dmabuf->list); | |
2493 | ||
2494 | /* now, allocate dma buffer */ | |
2495 | dmabuf->virt = dma_alloc_coherent(&pcidev->dev, BSG_MBOX_SIZE, | |
2496 | &(dmabuf->phys), GFP_KERNEL); | |
2497 | ||
2498 | if (!dmabuf->virt) { | |
2499 | kfree(dmabuf); | |
2500 | return NULL; | |
2501 | } | |
2502 | memset((uint8_t *)dmabuf->virt, 0, BSG_MBOX_SIZE); | |
2503 | ||
2504 | return dmabuf; | |
2505 | } | |
2506 | ||
2507 | /** | |
2508 | * lpfc_bsg_dma_page_free - free a bsg mbox page sized dma buffer | |
2509 | * @phba: Pointer to HBA context object. | |
2510 | * @dmabuf: Pointer to the bsg mbox page sized dma buffer descriptor. | |
2511 | * | |
2512 | * This routine just simply frees a dma buffer and its associated buffer | |
2513 | * descriptor referred by @dmabuf. | |
2514 | **/ | |
2515 | static void | |
2516 | lpfc_bsg_dma_page_free(struct lpfc_hba *phba, struct lpfc_dmabuf *dmabuf) | |
2517 | { | |
2518 | struct pci_dev *pcidev = phba->pcidev; | |
2519 | ||
2520 | if (!dmabuf) | |
2521 | return; | |
2522 | ||
2523 | if (dmabuf->virt) | |
2524 | dma_free_coherent(&pcidev->dev, BSG_MBOX_SIZE, | |
2525 | dmabuf->virt, dmabuf->phys); | |
2526 | kfree(dmabuf); | |
2527 | return; | |
2528 | } | |
2529 | ||
2530 | /** | |
2531 | * lpfc_bsg_dma_page_list_free - free a list of bsg mbox page sized dma buffers | |
2532 | * @phba: Pointer to HBA context object. | |
2533 | * @dmabuf_list: Pointer to a list of bsg mbox page sized dma buffer descs. | |
2534 | * | |
2535 | * This routine just simply frees all dma buffers and their associated buffer | |
2536 | * descriptors referred by @dmabuf_list. | |
2537 | **/ | |
2538 | static void | |
2539 | lpfc_bsg_dma_page_list_free(struct lpfc_hba *phba, | |
2540 | struct list_head *dmabuf_list) | |
2541 | { | |
2542 | struct lpfc_dmabuf *dmabuf, *next_dmabuf; | |
2543 | ||
2544 | if (list_empty(dmabuf_list)) | |
2545 | return; | |
2546 | ||
2547 | list_for_each_entry_safe(dmabuf, next_dmabuf, dmabuf_list, list) { | |
2548 | list_del_init(&dmabuf->list); | |
2549 | lpfc_bsg_dma_page_free(phba, dmabuf); | |
2550 | } | |
2551 | return; | |
2552 | } | |
2553 | ||
3b5dd52a JS |
2554 | /** |
2555 | * diag_cmd_data_alloc - fills in a bde struct with dma buffers | |
2556 | * @phba: Pointer to HBA context object | |
2557 | * @bpl: Pointer to 64 bit bde structure | |
2558 | * @size: Number of bytes to process | |
2559 | * @nocopydata: Flag to copy user data into the allocated buffer | |
2560 | * | |
2561 | * This function allocates page size buffers and populates an lpfc_dmabufext. | |
2562 | * If allowed the user data pointed to with indataptr is copied into the kernel | |
2563 | * memory. The chained list of page size buffers is returned. | |
2564 | **/ | |
2565 | static struct lpfc_dmabufext * | |
2566 | diag_cmd_data_alloc(struct lpfc_hba *phba, | |
2567 | struct ulp_bde64 *bpl, uint32_t size, | |
2568 | int nocopydata) | |
2569 | { | |
2570 | struct lpfc_dmabufext *mlist = NULL; | |
2571 | struct lpfc_dmabufext *dmp; | |
2572 | int cnt, offset = 0, i = 0; | |
2573 | struct pci_dev *pcidev; | |
2574 | ||
2575 | pcidev = phba->pcidev; | |
2576 | ||
2577 | while (size) { | |
2578 | /* We get chunks of 4K */ | |
2579 | if (size > BUF_SZ_4K) | |
2580 | cnt = BUF_SZ_4K; | |
2581 | else | |
2582 | cnt = size; | |
2583 | ||
2584 | /* allocate struct lpfc_dmabufext buffer header */ | |
2585 | dmp = kmalloc(sizeof(struct lpfc_dmabufext), GFP_KERNEL); | |
2586 | if (!dmp) | |
2587 | goto out; | |
2588 | ||
2589 | INIT_LIST_HEAD(&dmp->dma.list); | |
2590 | ||
2591 | /* Queue it to a linked list */ | |
2592 | if (mlist) | |
2593 | list_add_tail(&dmp->dma.list, &mlist->dma.list); | |
2594 | else | |
2595 | mlist = dmp; | |
2596 | ||
2597 | /* allocate buffer */ | |
2598 | dmp->dma.virt = dma_alloc_coherent(&pcidev->dev, | |
2599 | cnt, | |
2600 | &(dmp->dma.phys), | |
2601 | GFP_KERNEL); | |
2602 | ||
2603 | if (!dmp->dma.virt) | |
2604 | goto out; | |
2605 | ||
2606 | dmp->size = cnt; | |
2607 | ||
2608 | if (nocopydata) { | |
2609 | bpl->tus.f.bdeFlags = 0; | |
2610 | pci_dma_sync_single_for_device(phba->pcidev, | |
2611 | dmp->dma.phys, LPFC_BPL_SIZE, PCI_DMA_TODEVICE); | |
2612 | ||
2613 | } else { | |
2614 | memset((uint8_t *)dmp->dma.virt, 0, cnt); | |
2615 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; | |
2616 | } | |
2617 | ||
2618 | /* build buffer ptr list for IOCB */ | |
2619 | bpl->addrLow = le32_to_cpu(putPaddrLow(dmp->dma.phys)); | |
2620 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(dmp->dma.phys)); | |
2621 | bpl->tus.f.bdeSize = (ushort) cnt; | |
2622 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
2623 | bpl++; | |
2624 | ||
2625 | i++; | |
2626 | offset += cnt; | |
2627 | size -= cnt; | |
2628 | } | |
2629 | ||
2630 | mlist->flag = i; | |
2631 | return mlist; | |
2632 | out: | |
2633 | diag_cmd_data_free(phba, mlist); | |
2634 | return NULL; | |
2635 | } | |
2636 | ||
2637 | /** | |
2638 | * lpfcdiag_loop_post_rxbufs - post the receive buffers for an unsol CT cmd | |
2639 | * @phba: Pointer to HBA context object | |
2640 | * @rxxri: Receive exchange id | |
2641 | * @len: Number of data bytes | |
2642 | * | |
25985edc | 2643 | * This function allocates and posts a data buffer of sufficient size to receive |
3b5dd52a JS |
2644 | * an unsolicted CT command. |
2645 | **/ | |
2646 | static int lpfcdiag_loop_post_rxbufs(struct lpfc_hba *phba, uint16_t rxxri, | |
2647 | size_t len) | |
2648 | { | |
2649 | struct lpfc_sli *psli = &phba->sli; | |
2650 | struct lpfc_sli_ring *pring = &psli->ring[LPFC_ELS_RING]; | |
2651 | struct lpfc_iocbq *cmdiocbq; | |
2652 | IOCB_t *cmd = NULL; | |
2653 | struct list_head head, *curr, *next; | |
2654 | struct lpfc_dmabuf *rxbmp; | |
2655 | struct lpfc_dmabuf *dmp; | |
2656 | struct lpfc_dmabuf *mp[2] = {NULL, NULL}; | |
2657 | struct ulp_bde64 *rxbpl = NULL; | |
2658 | uint32_t num_bde; | |
2659 | struct lpfc_dmabufext *rxbuffer = NULL; | |
2660 | int ret_val = 0; | |
d439d286 | 2661 | int iocb_stat; |
3b5dd52a JS |
2662 | int i = 0; |
2663 | ||
2664 | cmdiocbq = lpfc_sli_get_iocbq(phba); | |
2665 | rxbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
2666 | if (rxbmp != NULL) { | |
2667 | rxbmp->virt = lpfc_mbuf_alloc(phba, 0, &rxbmp->phys); | |
c7495937 JS |
2668 | if (rxbmp->virt) { |
2669 | INIT_LIST_HEAD(&rxbmp->list); | |
2670 | rxbpl = (struct ulp_bde64 *) rxbmp->virt; | |
2671 | rxbuffer = diag_cmd_data_alloc(phba, rxbpl, len, 0); | |
2672 | } | |
3b5dd52a JS |
2673 | } |
2674 | ||
2675 | if (!cmdiocbq || !rxbmp || !rxbpl || !rxbuffer) { | |
d439d286 | 2676 | ret_val = -ENOMEM; |
3b5dd52a JS |
2677 | goto err_post_rxbufs_exit; |
2678 | } | |
2679 | ||
2680 | /* Queue buffers for the receive exchange */ | |
2681 | num_bde = (uint32_t)rxbuffer->flag; | |
2682 | dmp = &rxbuffer->dma; | |
2683 | ||
2684 | cmd = &cmdiocbq->iocb; | |
2685 | i = 0; | |
2686 | ||
2687 | INIT_LIST_HEAD(&head); | |
2688 | list_add_tail(&head, &dmp->list); | |
2689 | list_for_each_safe(curr, next, &head) { | |
2690 | mp[i] = list_entry(curr, struct lpfc_dmabuf, list); | |
2691 | list_del(curr); | |
2692 | ||
2693 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { | |
2694 | mp[i]->buffer_tag = lpfc_sli_get_buffer_tag(phba); | |
2695 | cmd->un.quexri64cx.buff.bde.addrHigh = | |
2696 | putPaddrHigh(mp[i]->phys); | |
2697 | cmd->un.quexri64cx.buff.bde.addrLow = | |
2698 | putPaddrLow(mp[i]->phys); | |
2699 | cmd->un.quexri64cx.buff.bde.tus.f.bdeSize = | |
2700 | ((struct lpfc_dmabufext *)mp[i])->size; | |
2701 | cmd->un.quexri64cx.buff.buffer_tag = mp[i]->buffer_tag; | |
2702 | cmd->ulpCommand = CMD_QUE_XRI64_CX; | |
2703 | cmd->ulpPU = 0; | |
2704 | cmd->ulpLe = 1; | |
2705 | cmd->ulpBdeCount = 1; | |
2706 | cmd->unsli3.que_xri64cx_ext_words.ebde_count = 0; | |
2707 | ||
2708 | } else { | |
2709 | cmd->un.cont64[i].addrHigh = putPaddrHigh(mp[i]->phys); | |
2710 | cmd->un.cont64[i].addrLow = putPaddrLow(mp[i]->phys); | |
2711 | cmd->un.cont64[i].tus.f.bdeSize = | |
2712 | ((struct lpfc_dmabufext *)mp[i])->size; | |
2713 | cmd->ulpBdeCount = ++i; | |
2714 | ||
2715 | if ((--num_bde > 0) && (i < 2)) | |
2716 | continue; | |
2717 | ||
2718 | cmd->ulpCommand = CMD_QUE_XRI_BUF64_CX; | |
2719 | cmd->ulpLe = 1; | |
2720 | } | |
2721 | ||
2722 | cmd->ulpClass = CLASS3; | |
2723 | cmd->ulpContext = rxxri; | |
2724 | ||
d439d286 JS |
2725 | iocb_stat = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, |
2726 | 0); | |
2727 | if (iocb_stat == IOCB_ERROR) { | |
3b5dd52a JS |
2728 | diag_cmd_data_free(phba, |
2729 | (struct lpfc_dmabufext *)mp[0]); | |
2730 | if (mp[1]) | |
2731 | diag_cmd_data_free(phba, | |
2732 | (struct lpfc_dmabufext *)mp[1]); | |
2733 | dmp = list_entry(next, struct lpfc_dmabuf, list); | |
d439d286 | 2734 | ret_val = -EIO; |
3b5dd52a JS |
2735 | goto err_post_rxbufs_exit; |
2736 | } | |
2737 | ||
2738 | lpfc_sli_ringpostbuf_put(phba, pring, mp[0]); | |
2739 | if (mp[1]) { | |
2740 | lpfc_sli_ringpostbuf_put(phba, pring, mp[1]); | |
2741 | mp[1] = NULL; | |
2742 | } | |
2743 | ||
2744 | /* The iocb was freed by lpfc_sli_issue_iocb */ | |
2745 | cmdiocbq = lpfc_sli_get_iocbq(phba); | |
2746 | if (!cmdiocbq) { | |
2747 | dmp = list_entry(next, struct lpfc_dmabuf, list); | |
d439d286 | 2748 | ret_val = -EIO; |
3b5dd52a JS |
2749 | goto err_post_rxbufs_exit; |
2750 | } | |
2751 | ||
2752 | cmd = &cmdiocbq->iocb; | |
2753 | i = 0; | |
2754 | } | |
2755 | list_del(&head); | |
2756 | ||
2757 | err_post_rxbufs_exit: | |
2758 | ||
2759 | if (rxbmp) { | |
2760 | if (rxbmp->virt) | |
2761 | lpfc_mbuf_free(phba, rxbmp->virt, rxbmp->phys); | |
2762 | kfree(rxbmp); | |
2763 | } | |
2764 | ||
2765 | if (cmdiocbq) | |
2766 | lpfc_sli_release_iocbq(phba, cmdiocbq); | |
2767 | return ret_val; | |
2768 | } | |
2769 | ||
2770 | /** | |
7ad20aa9 | 2771 | * lpfc_bsg_diag_loopback_run - run loopback on a port by issue ct cmd to itself |
3b5dd52a JS |
2772 | * @job: LPFC_BSG_VENDOR_DIAG_TEST fc_bsg_job |
2773 | * | |
2774 | * This function receives a user data buffer to be transmitted and received on | |
2775 | * the same port, the link must be up and in loopback mode prior | |
2776 | * to being called. | |
2777 | * 1. A kernel buffer is allocated to copy the user data into. | |
2778 | * 2. The port registers with "itself". | |
2779 | * 3. The transmit and receive exchange ids are obtained. | |
2780 | * 4. The receive exchange id is posted. | |
2781 | * 5. A new els loopback event is created. | |
2782 | * 6. The command and response iocbs are allocated. | |
2783 | * 7. The cmd iocb FsType is set to elx loopback and the CmdRsp to looppback. | |
2784 | * | |
2785 | * This function is meant to be called n times while the port is in loopback | |
2786 | * so it is the apps responsibility to issue a reset to take the port out | |
2787 | * of loopback mode. | |
2788 | **/ | |
2789 | static int | |
7ad20aa9 | 2790 | lpfc_bsg_diag_loopback_run(struct fc_bsg_job *job) |
3b5dd52a JS |
2791 | { |
2792 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
2793 | struct lpfc_hba *phba = vport->phba; | |
2794 | struct diag_mode_test *diag_mode; | |
2795 | struct lpfc_bsg_event *evt; | |
2796 | struct event_data *evdat; | |
2797 | struct lpfc_sli *psli = &phba->sli; | |
2798 | uint32_t size; | |
2799 | uint32_t full_size; | |
2800 | size_t segment_len = 0, segment_offset = 0, current_offset = 0; | |
4042629e | 2801 | uint16_t rpi = 0; |
1b51197d JS |
2802 | struct lpfc_iocbq *cmdiocbq, *rspiocbq = NULL; |
2803 | IOCB_t *cmd, *rsp = NULL; | |
3b5dd52a JS |
2804 | struct lpfc_sli_ct_request *ctreq; |
2805 | struct lpfc_dmabuf *txbmp; | |
2806 | struct ulp_bde64 *txbpl = NULL; | |
2807 | struct lpfc_dmabufext *txbuffer = NULL; | |
2808 | struct list_head head; | |
2809 | struct lpfc_dmabuf *curr; | |
1b51197d | 2810 | uint16_t txxri = 0, rxxri; |
3b5dd52a JS |
2811 | uint32_t num_bde; |
2812 | uint8_t *ptr = NULL, *rx_databuf = NULL; | |
2813 | int rc = 0; | |
d439d286 JS |
2814 | int time_left; |
2815 | int iocb_stat; | |
3b5dd52a JS |
2816 | unsigned long flags; |
2817 | void *dataout = NULL; | |
2818 | uint32_t total_mem; | |
2819 | ||
2820 | /* in case no data is returned return just the return code */ | |
2821 | job->reply->reply_payload_rcv_len = 0; | |
2822 | ||
2823 | if (job->request_len < | |
2824 | sizeof(struct fc_bsg_request) + sizeof(struct diag_mode_test)) { | |
2825 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
2826 | "2739 Received DIAG TEST request below minimum " | |
2827 | "size\n"); | |
2828 | rc = -EINVAL; | |
2829 | goto loopback_test_exit; | |
2830 | } | |
2831 | ||
2832 | if (job->request_payload.payload_len != | |
2833 | job->reply_payload.payload_len) { | |
2834 | rc = -EINVAL; | |
2835 | goto loopback_test_exit; | |
2836 | } | |
3b5dd52a JS |
2837 | diag_mode = (struct diag_mode_test *) |
2838 | job->request->rqst_data.h_vendor.vendor_cmd; | |
2839 | ||
2840 | if ((phba->link_state == LPFC_HBA_ERROR) || | |
2841 | (psli->sli_flag & LPFC_BLOCK_MGMT_IO) || | |
2842 | (!(psli->sli_flag & LPFC_SLI_ACTIVE))) { | |
2843 | rc = -EACCES; | |
2844 | goto loopback_test_exit; | |
2845 | } | |
2846 | ||
2847 | if (!lpfc_is_link_up(phba) || !(phba->link_flag & LS_LOOPBACK_MODE)) { | |
2848 | rc = -EACCES; | |
2849 | goto loopback_test_exit; | |
2850 | } | |
2851 | ||
2852 | size = job->request_payload.payload_len; | |
2853 | full_size = size + ELX_LOOPBACK_HEADER_SZ; /* plus the header */ | |
2854 | ||
2855 | if ((size == 0) || (size > 80 * BUF_SZ_4K)) { | |
2856 | rc = -ERANGE; | |
2857 | goto loopback_test_exit; | |
2858 | } | |
2859 | ||
63e801ce | 2860 | if (full_size >= BUF_SZ_4K) { |
3b5dd52a JS |
2861 | /* |
2862 | * Allocate memory for ioctl data. If buffer is bigger than 64k, | |
2863 | * then we allocate 64k and re-use that buffer over and over to | |
2864 | * xfer the whole block. This is because Linux kernel has a | |
2865 | * problem allocating more than 120k of kernel space memory. Saw | |
2866 | * problem with GET_FCPTARGETMAPPING... | |
2867 | */ | |
2868 | if (size <= (64 * 1024)) | |
63e801ce | 2869 | total_mem = full_size; |
3b5dd52a JS |
2870 | else |
2871 | total_mem = 64 * 1024; | |
2872 | } else | |
2873 | /* Allocate memory for ioctl data */ | |
2874 | total_mem = BUF_SZ_4K; | |
2875 | ||
2876 | dataout = kmalloc(total_mem, GFP_KERNEL); | |
2877 | if (dataout == NULL) { | |
2878 | rc = -ENOMEM; | |
2879 | goto loopback_test_exit; | |
2880 | } | |
2881 | ||
2882 | ptr = dataout; | |
2883 | ptr += ELX_LOOPBACK_HEADER_SZ; | |
2884 | sg_copy_to_buffer(job->request_payload.sg_list, | |
2885 | job->request_payload.sg_cnt, | |
2886 | ptr, size); | |
3b5dd52a | 2887 | rc = lpfcdiag_loop_self_reg(phba, &rpi); |
d439d286 | 2888 | if (rc) |
3b5dd52a | 2889 | goto loopback_test_exit; |
3b5dd52a | 2890 | |
1b51197d JS |
2891 | if (phba->sli_rev < LPFC_SLI_REV4) { |
2892 | rc = lpfcdiag_loop_get_xri(phba, rpi, &txxri, &rxxri); | |
2893 | if (rc) { | |
2894 | lpfcdiag_loop_self_unreg(phba, rpi); | |
2895 | goto loopback_test_exit; | |
2896 | } | |
3b5dd52a | 2897 | |
1b51197d JS |
2898 | rc = lpfcdiag_loop_post_rxbufs(phba, rxxri, full_size); |
2899 | if (rc) { | |
2900 | lpfcdiag_loop_self_unreg(phba, rpi); | |
2901 | goto loopback_test_exit; | |
2902 | } | |
3b5dd52a | 2903 | } |
3b5dd52a JS |
2904 | evt = lpfc_bsg_event_new(FC_REG_CT_EVENT, current->pid, |
2905 | SLI_CT_ELX_LOOPBACK); | |
2906 | if (!evt) { | |
2907 | lpfcdiag_loop_self_unreg(phba, rpi); | |
2908 | rc = -ENOMEM; | |
2909 | goto loopback_test_exit; | |
2910 | } | |
2911 | ||
2912 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
2913 | list_add(&evt->node, &phba->ct_ev_waiters); | |
2914 | lpfc_bsg_event_ref(evt); | |
2915 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
2916 | ||
2917 | cmdiocbq = lpfc_sli_get_iocbq(phba); | |
1b51197d JS |
2918 | if (phba->sli_rev < LPFC_SLI_REV4) |
2919 | rspiocbq = lpfc_sli_get_iocbq(phba); | |
3b5dd52a JS |
2920 | txbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
2921 | ||
2922 | if (txbmp) { | |
2923 | txbmp->virt = lpfc_mbuf_alloc(phba, 0, &txbmp->phys); | |
c7495937 JS |
2924 | if (txbmp->virt) { |
2925 | INIT_LIST_HEAD(&txbmp->list); | |
2926 | txbpl = (struct ulp_bde64 *) txbmp->virt; | |
3b5dd52a JS |
2927 | txbuffer = diag_cmd_data_alloc(phba, |
2928 | txbpl, full_size, 0); | |
c7495937 | 2929 | } |
3b5dd52a JS |
2930 | } |
2931 | ||
1b51197d JS |
2932 | if (!cmdiocbq || !txbmp || !txbpl || !txbuffer || !txbmp->virt) { |
2933 | rc = -ENOMEM; | |
2934 | goto err_loopback_test_exit; | |
2935 | } | |
2936 | if ((phba->sli_rev < LPFC_SLI_REV4) && !rspiocbq) { | |
3b5dd52a JS |
2937 | rc = -ENOMEM; |
2938 | goto err_loopback_test_exit; | |
2939 | } | |
2940 | ||
2941 | cmd = &cmdiocbq->iocb; | |
1b51197d JS |
2942 | if (phba->sli_rev < LPFC_SLI_REV4) |
2943 | rsp = &rspiocbq->iocb; | |
3b5dd52a JS |
2944 | |
2945 | INIT_LIST_HEAD(&head); | |
2946 | list_add_tail(&head, &txbuffer->dma.list); | |
2947 | list_for_each_entry(curr, &head, list) { | |
2948 | segment_len = ((struct lpfc_dmabufext *)curr)->size; | |
2949 | if (current_offset == 0) { | |
2950 | ctreq = curr->virt; | |
2951 | memset(ctreq, 0, ELX_LOOPBACK_HEADER_SZ); | |
2952 | ctreq->RevisionId.bits.Revision = SLI_CT_REVISION; | |
2953 | ctreq->RevisionId.bits.InId = 0; | |
2954 | ctreq->FsType = SLI_CT_ELX_LOOPBACK; | |
2955 | ctreq->FsSubType = 0; | |
2956 | ctreq->CommandResponse.bits.CmdRsp = ELX_LOOPBACK_DATA; | |
2957 | ctreq->CommandResponse.bits.Size = size; | |
2958 | segment_offset = ELX_LOOPBACK_HEADER_SZ; | |
2959 | } else | |
2960 | segment_offset = 0; | |
2961 | ||
2962 | BUG_ON(segment_offset >= segment_len); | |
2963 | memcpy(curr->virt + segment_offset, | |
2964 | ptr + current_offset, | |
2965 | segment_len - segment_offset); | |
2966 | ||
2967 | current_offset += segment_len - segment_offset; | |
2968 | BUG_ON(current_offset > size); | |
2969 | } | |
2970 | list_del(&head); | |
2971 | ||
2972 | /* Build the XMIT_SEQUENCE iocb */ | |
3b5dd52a JS |
2973 | num_bde = (uint32_t)txbuffer->flag; |
2974 | ||
2975 | cmd->un.xseq64.bdl.addrHigh = putPaddrHigh(txbmp->phys); | |
2976 | cmd->un.xseq64.bdl.addrLow = putPaddrLow(txbmp->phys); | |
2977 | cmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; | |
2978 | cmd->un.xseq64.bdl.bdeSize = (num_bde * sizeof(struct ulp_bde64)); | |
2979 | ||
2980 | cmd->un.xseq64.w5.hcsw.Fctl = (LS | LA); | |
2981 | cmd->un.xseq64.w5.hcsw.Dfctl = 0; | |
2982 | cmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL; | |
2983 | cmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT; | |
2984 | ||
2985 | cmd->ulpCommand = CMD_XMIT_SEQUENCE64_CX; | |
2986 | cmd->ulpBdeCount = 1; | |
2987 | cmd->ulpLe = 1; | |
2988 | cmd->ulpClass = CLASS3; | |
3b5dd52a | 2989 | |
1b51197d JS |
2990 | if (phba->sli_rev < LPFC_SLI_REV4) { |
2991 | cmd->ulpContext = txxri; | |
2992 | } else { | |
2993 | cmd->un.xseq64.bdl.ulpIoTag32 = 0; | |
2994 | cmd->un.ulpWord[3] = phba->sli4_hba.rpi_ids[rpi]; | |
2995 | cmdiocbq->context3 = txbmp; | |
2996 | cmdiocbq->sli4_xritag = NO_XRI; | |
2997 | cmd->unsli3.rcvsli3.ox_id = 0xffff; | |
2998 | } | |
3b5dd52a JS |
2999 | cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC; |
3000 | cmdiocbq->vport = phba->pport; | |
d439d286 JS |
3001 | iocb_stat = lpfc_sli_issue_iocb_wait(phba, LPFC_ELS_RING, cmdiocbq, |
3002 | rspiocbq, (phba->fc_ratov * 2) + | |
3003 | LPFC_DRVR_TIMEOUT); | |
3b5dd52a | 3004 | |
1b51197d JS |
3005 | if ((iocb_stat != IOCB_SUCCESS) || ((phba->sli_rev < LPFC_SLI_REV4) && |
3006 | (rsp->ulpStatus != IOCB_SUCCESS))) { | |
3007 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, | |
3008 | "3126 Failed loopback test issue iocb: " | |
3009 | "iocb_stat:x%x\n", iocb_stat); | |
3b5dd52a JS |
3010 | rc = -EIO; |
3011 | goto err_loopback_test_exit; | |
3012 | } | |
3013 | ||
3014 | evt->waiting = 1; | |
d439d286 | 3015 | time_left = wait_event_interruptible_timeout( |
3b5dd52a JS |
3016 | evt->wq, !list_empty(&evt->events_to_see), |
3017 | ((phba->fc_ratov * 2) + LPFC_DRVR_TIMEOUT) * HZ); | |
3018 | evt->waiting = 0; | |
1b51197d | 3019 | if (list_empty(&evt->events_to_see)) { |
d439d286 | 3020 | rc = (time_left) ? -EINTR : -ETIMEDOUT; |
1b51197d JS |
3021 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, |
3022 | "3125 Not receiving unsolicited event, " | |
3023 | "rc:x%x\n", rc); | |
3024 | } else { | |
3b5dd52a JS |
3025 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
3026 | list_move(evt->events_to_see.prev, &evt->events_to_get); | |
3027 | evdat = list_entry(evt->events_to_get.prev, | |
3028 | typeof(*evdat), node); | |
3029 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
3030 | rx_databuf = evdat->data; | |
3031 | if (evdat->len != full_size) { | |
3032 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, | |
3033 | "1603 Loopback test did not receive expected " | |
3034 | "data length. actual length 0x%x expected " | |
3035 | "length 0x%x\n", | |
3036 | evdat->len, full_size); | |
3037 | rc = -EIO; | |
3038 | } else if (rx_databuf == NULL) | |
3039 | rc = -EIO; | |
3040 | else { | |
3041 | rc = IOCB_SUCCESS; | |
3042 | /* skip over elx loopback header */ | |
3043 | rx_databuf += ELX_LOOPBACK_HEADER_SZ; | |
3044 | job->reply->reply_payload_rcv_len = | |
3045 | sg_copy_from_buffer(job->reply_payload.sg_list, | |
3046 | job->reply_payload.sg_cnt, | |
3047 | rx_databuf, size); | |
3048 | job->reply->reply_payload_rcv_len = size; | |
3049 | } | |
3050 | } | |
3051 | ||
3052 | err_loopback_test_exit: | |
3053 | lpfcdiag_loop_self_unreg(phba, rpi); | |
3054 | ||
3055 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
3056 | lpfc_bsg_event_unref(evt); /* release ref */ | |
3057 | lpfc_bsg_event_unref(evt); /* delete */ | |
3058 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
3059 | ||
3060 | if (cmdiocbq != NULL) | |
3061 | lpfc_sli_release_iocbq(phba, cmdiocbq); | |
3062 | ||
3063 | if (rspiocbq != NULL) | |
3064 | lpfc_sli_release_iocbq(phba, rspiocbq); | |
3065 | ||
3066 | if (txbmp != NULL) { | |
3067 | if (txbpl != NULL) { | |
3068 | if (txbuffer != NULL) | |
3069 | diag_cmd_data_free(phba, txbuffer); | |
3070 | lpfc_mbuf_free(phba, txbmp->virt, txbmp->phys); | |
3071 | } | |
3072 | kfree(txbmp); | |
3073 | } | |
3074 | ||
3075 | loopback_test_exit: | |
3076 | kfree(dataout); | |
3077 | /* make error code available to userspace */ | |
3078 | job->reply->result = rc; | |
3079 | job->dd_data = NULL; | |
3080 | /* complete the job back to userspace if no error */ | |
1b51197d | 3081 | if (rc == IOCB_SUCCESS) |
3b5dd52a JS |
3082 | job->job_done(job); |
3083 | return rc; | |
3084 | } | |
3085 | ||
3086 | /** | |
3087 | * lpfc_bsg_get_dfc_rev - process a GET_DFC_REV bsg vendor command | |
3088 | * @job: GET_DFC_REV fc_bsg_job | |
3089 | **/ | |
3090 | static int | |
3091 | lpfc_bsg_get_dfc_rev(struct fc_bsg_job *job) | |
3092 | { | |
3093 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
3094 | struct lpfc_hba *phba = vport->phba; | |
3095 | struct get_mgmt_rev *event_req; | |
3096 | struct get_mgmt_rev_reply *event_reply; | |
3097 | int rc = 0; | |
3098 | ||
3099 | if (job->request_len < | |
3100 | sizeof(struct fc_bsg_request) + sizeof(struct get_mgmt_rev)) { | |
3101 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
3102 | "2740 Received GET_DFC_REV request below " | |
3103 | "minimum size\n"); | |
3104 | rc = -EINVAL; | |
3105 | goto job_error; | |
3106 | } | |
3107 | ||
3108 | event_req = (struct get_mgmt_rev *) | |
3109 | job->request->rqst_data.h_vendor.vendor_cmd; | |
3110 | ||
3111 | event_reply = (struct get_mgmt_rev_reply *) | |
3112 | job->reply->reply_data.vendor_reply.vendor_rsp; | |
3113 | ||
3114 | if (job->reply_len < | |
3115 | sizeof(struct fc_bsg_request) + sizeof(struct get_mgmt_rev_reply)) { | |
3116 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
3117 | "2741 Received GET_DFC_REV reply below " | |
3118 | "minimum size\n"); | |
3119 | rc = -EINVAL; | |
3120 | goto job_error; | |
3121 | } | |
3122 | ||
3123 | event_reply->info.a_Major = MANAGEMENT_MAJOR_REV; | |
3124 | event_reply->info.a_Minor = MANAGEMENT_MINOR_REV; | |
3125 | job_error: | |
3126 | job->reply->result = rc; | |
3127 | if (rc == 0) | |
3128 | job->job_done(job); | |
3129 | return rc; | |
3130 | } | |
3131 | ||
3132 | /** | |
7ad20aa9 | 3133 | * lpfc_bsg_issue_mbox_cmpl - lpfc_bsg_issue_mbox mbox completion handler |
3b5dd52a JS |
3134 | * @phba: Pointer to HBA context object. |
3135 | * @pmboxq: Pointer to mailbox command. | |
3136 | * | |
3137 | * This is completion handler function for mailbox commands issued from | |
3138 | * lpfc_bsg_issue_mbox function. This function is called by the | |
3139 | * mailbox event handler function with no lock held. This function | |
3140 | * will wake up thread waiting on the wait queue pointed by context1 | |
3141 | * of the mailbox. | |
3142 | **/ | |
3143 | void | |
7ad20aa9 | 3144 | lpfc_bsg_issue_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) |
3b5dd52a JS |
3145 | { |
3146 | struct bsg_job_data *dd_data; | |
3b5dd52a JS |
3147 | struct fc_bsg_job *job; |
3148 | uint32_t size; | |
3149 | unsigned long flags; | |
7ad20aa9 | 3150 | uint8_t *pmb, *pmb_buf; |
3b5dd52a JS |
3151 | |
3152 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
3153 | dd_data = pmboxq->context1; | |
7a470277 | 3154 | /* job already timed out? */ |
3b5dd52a JS |
3155 | if (!dd_data) { |
3156 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
3157 | return; | |
3158 | } | |
3159 | ||
7ad20aa9 JS |
3160 | /* |
3161 | * The outgoing buffer is readily referred from the dma buffer, | |
3162 | * just need to get header part from mailboxq structure. | |
7a470277 | 3163 | */ |
7ad20aa9 JS |
3164 | pmb = (uint8_t *)&pmboxq->u.mb; |
3165 | pmb_buf = (uint8_t *)dd_data->context_un.mbox.mb; | |
3166 | memcpy(pmb_buf, pmb, sizeof(MAILBOX_t)); | |
7a470277 | 3167 | |
3b5dd52a | 3168 | job = dd_data->context_un.mbox.set_job; |
5a6f133e JS |
3169 | if (job) { |
3170 | size = job->reply_payload.payload_len; | |
3171 | job->reply->reply_payload_rcv_len = | |
3172 | sg_copy_from_buffer(job->reply_payload.sg_list, | |
7ad20aa9 JS |
3173 | job->reply_payload.sg_cnt, |
3174 | pmb_buf, size); | |
b6e3b9c6 JS |
3175 | /* need to hold the lock until we set job->dd_data to NULL |
3176 | * to hold off the timeout handler returning to the mid-layer | |
3177 | * while we are still processing the job. | |
3178 | */ | |
5a6f133e | 3179 | job->dd_data = NULL; |
b6e3b9c6 JS |
3180 | dd_data->context_un.mbox.set_job = NULL; |
3181 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
b6e3b9c6 JS |
3182 | } else { |
3183 | dd_data->context_un.mbox.set_job = NULL; | |
3184 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
5a6f133e | 3185 | } |
7a470277 | 3186 | |
3b5dd52a | 3187 | mempool_free(dd_data->context_un.mbox.pmboxq, phba->mbox_mem_pool); |
7ad20aa9 JS |
3188 | lpfc_bsg_dma_page_free(phba, dd_data->context_un.mbox.dmabuffers); |
3189 | kfree(dd_data); | |
3190 | ||
3191 | if (job) { | |
3192 | job->reply->result = 0; | |
3193 | job->job_done(job); | |
3194 | } | |
3195 | return; | |
3196 | } | |
3197 | ||
3198 | /** | |
3199 | * lpfc_bsg_check_cmd_access - test for a supported mailbox command | |
3200 | * @phba: Pointer to HBA context object. | |
3201 | * @mb: Pointer to a mailbox object. | |
3202 | * @vport: Pointer to a vport object. | |
3203 | * | |
3204 | * Some commands require the port to be offline, some may not be called from | |
3205 | * the application. | |
3206 | **/ | |
3207 | static int lpfc_bsg_check_cmd_access(struct lpfc_hba *phba, | |
3208 | MAILBOX_t *mb, struct lpfc_vport *vport) | |
3209 | { | |
3210 | /* return negative error values for bsg job */ | |
3211 | switch (mb->mbxCommand) { | |
3212 | /* Offline only */ | |
3213 | case MBX_INIT_LINK: | |
3214 | case MBX_DOWN_LINK: | |
3215 | case MBX_CONFIG_LINK: | |
3216 | case MBX_CONFIG_RING: | |
3217 | case MBX_RESET_RING: | |
3218 | case MBX_UNREG_LOGIN: | |
3219 | case MBX_CLEAR_LA: | |
3220 | case MBX_DUMP_CONTEXT: | |
3221 | case MBX_RUN_DIAGS: | |
3222 | case MBX_RESTART: | |
3223 | case MBX_SET_MASK: | |
3224 | if (!(vport->fc_flag & FC_OFFLINE_MODE)) { | |
3225 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
3226 | "2743 Command 0x%x is illegal in on-line " | |
3227 | "state\n", | |
3228 | mb->mbxCommand); | |
3229 | return -EPERM; | |
3230 | } | |
3231 | case MBX_WRITE_NV: | |
3232 | case MBX_WRITE_VPARMS: | |
3233 | case MBX_LOAD_SM: | |
3234 | case MBX_READ_NV: | |
3235 | case MBX_READ_CONFIG: | |
3236 | case MBX_READ_RCONFIG: | |
3237 | case MBX_READ_STATUS: | |
3238 | case MBX_READ_XRI: | |
3239 | case MBX_READ_REV: | |
3240 | case MBX_READ_LNK_STAT: | |
3241 | case MBX_DUMP_MEMORY: | |
3242 | case MBX_DOWN_LOAD: | |
3243 | case MBX_UPDATE_CFG: | |
3244 | case MBX_KILL_BOARD: | |
3245 | case MBX_LOAD_AREA: | |
3246 | case MBX_LOAD_EXP_ROM: | |
3247 | case MBX_BEACON: | |
3248 | case MBX_DEL_LD_ENTRY: | |
3249 | case MBX_SET_DEBUG: | |
3250 | case MBX_WRITE_WWN: | |
3251 | case MBX_SLI4_CONFIG: | |
3252 | case MBX_READ_EVENT_LOG: | |
3253 | case MBX_READ_EVENT_LOG_STATUS: | |
3254 | case MBX_WRITE_EVENT_LOG: | |
3255 | case MBX_PORT_CAPABILITIES: | |
3256 | case MBX_PORT_IOV_CONTROL: | |
3257 | case MBX_RUN_BIU_DIAG64: | |
3258 | break; | |
3259 | case MBX_SET_VARIABLE: | |
3260 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
3261 | "1226 mbox: set_variable 0x%x, 0x%x\n", | |
3262 | mb->un.varWords[0], | |
3263 | mb->un.varWords[1]); | |
3264 | if ((mb->un.varWords[0] == SETVAR_MLOMNT) | |
3265 | && (mb->un.varWords[1] == 1)) { | |
3266 | phba->wait_4_mlo_maint_flg = 1; | |
3267 | } else if (mb->un.varWords[0] == SETVAR_MLORST) { | |
1b51197d | 3268 | spin_lock_irq(&phba->hbalock); |
7ad20aa9 | 3269 | phba->link_flag &= ~LS_LOOPBACK_MODE; |
1b51197d | 3270 | spin_unlock_irq(&phba->hbalock); |
7ad20aa9 JS |
3271 | phba->fc_topology = LPFC_TOPOLOGY_PT_PT; |
3272 | } | |
3273 | break; | |
3274 | case MBX_READ_SPARM64: | |
3275 | case MBX_READ_TOPOLOGY: | |
3276 | case MBX_REG_LOGIN: | |
3277 | case MBX_REG_LOGIN64: | |
3278 | case MBX_CONFIG_PORT: | |
3279 | case MBX_RUN_BIU_DIAG: | |
3280 | default: | |
3281 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
3282 | "2742 Unknown Command 0x%x\n", | |
3283 | mb->mbxCommand); | |
3284 | return -EPERM; | |
3285 | } | |
3286 | ||
3287 | return 0; /* ok */ | |
3288 | } | |
3289 | ||
3290 | /** | |
3291 | * lpfc_bsg_mbox_ext_cleanup - clean up context of multi-buffer mbox session | |
3292 | * @phba: Pointer to HBA context object. | |
3293 | * | |
3294 | * This is routine clean up and reset BSG handling of multi-buffer mbox | |
3295 | * command session. | |
3296 | **/ | |
3297 | static void | |
3298 | lpfc_bsg_mbox_ext_session_reset(struct lpfc_hba *phba) | |
3299 | { | |
3300 | if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_IDLE) | |
3301 | return; | |
3302 | ||
3303 | /* free all memory, including dma buffers */ | |
3304 | lpfc_bsg_dma_page_list_free(phba, | |
3305 | &phba->mbox_ext_buf_ctx.ext_dmabuf_list); | |
3306 | lpfc_bsg_dma_page_free(phba, phba->mbox_ext_buf_ctx.mbx_dmabuf); | |
3307 | /* multi-buffer write mailbox command pass-through complete */ | |
3308 | memset((char *)&phba->mbox_ext_buf_ctx, 0, | |
3309 | sizeof(struct lpfc_mbox_ext_buf_ctx)); | |
3310 | INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list); | |
3311 | ||
3312 | return; | |
3313 | } | |
3314 | ||
3315 | /** | |
3316 | * lpfc_bsg_issue_mbox_ext_handle_job - job handler for multi-buffer mbox cmpl | |
3317 | * @phba: Pointer to HBA context object. | |
3318 | * @pmboxq: Pointer to mailbox command. | |
3319 | * | |
3320 | * This is routine handles BSG job for mailbox commands completions with | |
3321 | * multiple external buffers. | |
3322 | **/ | |
3323 | static struct fc_bsg_job * | |
3324 | lpfc_bsg_issue_mbox_ext_handle_job(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) | |
3325 | { | |
3326 | struct bsg_job_data *dd_data; | |
3327 | struct fc_bsg_job *job; | |
3328 | uint8_t *pmb, *pmb_buf; | |
3329 | unsigned long flags; | |
3330 | uint32_t size; | |
3331 | int rc = 0; | |
026abb87 JS |
3332 | struct lpfc_dmabuf *dmabuf; |
3333 | struct lpfc_sli_config_mbox *sli_cfg_mbx; | |
3334 | uint8_t *pmbx; | |
7ad20aa9 JS |
3335 | |
3336 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
3337 | dd_data = pmboxq->context1; | |
3338 | /* has the job already timed out? */ | |
3339 | if (!dd_data) { | |
3340 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
3341 | job = NULL; | |
3342 | goto job_done_out; | |
3343 | } | |
3344 | ||
3345 | /* | |
3346 | * The outgoing buffer is readily referred from the dma buffer, | |
3347 | * just need to get header part from mailboxq structure. | |
3348 | */ | |
3349 | pmb = (uint8_t *)&pmboxq->u.mb; | |
3350 | pmb_buf = (uint8_t *)dd_data->context_un.mbox.mb; | |
026abb87 | 3351 | /* Copy the byte swapped response mailbox back to the user */ |
7ad20aa9 | 3352 | memcpy(pmb_buf, pmb, sizeof(MAILBOX_t)); |
026abb87 JS |
3353 | /* if there is any non-embedded extended data copy that too */ |
3354 | dmabuf = phba->mbox_ext_buf_ctx.mbx_dmabuf; | |
3355 | sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt; | |
3356 | if (!bsg_bf_get(lpfc_mbox_hdr_emb, | |
3357 | &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr)) { | |
3358 | pmbx = (uint8_t *)dmabuf->virt; | |
3359 | /* byte swap the extended data following the mailbox command */ | |
3360 | lpfc_sli_pcimem_bcopy(&pmbx[sizeof(MAILBOX_t)], | |
3361 | &pmbx[sizeof(MAILBOX_t)], | |
3362 | sli_cfg_mbx->un.sli_config_emb0_subsys.mse[0].buf_len); | |
3363 | } | |
7ad20aa9 JS |
3364 | |
3365 | job = dd_data->context_un.mbox.set_job; | |
3366 | if (job) { | |
3367 | size = job->reply_payload.payload_len; | |
3368 | job->reply->reply_payload_rcv_len = | |
3369 | sg_copy_from_buffer(job->reply_payload.sg_list, | |
3370 | job->reply_payload.sg_cnt, | |
3371 | pmb_buf, size); | |
3372 | /* result for successful */ | |
3373 | job->reply->result = 0; | |
3374 | job->dd_data = NULL; | |
3375 | /* need to hold the lock util we set job->dd_data to NULL | |
3376 | * to hold off the timeout handler from midlayer to take | |
3377 | * any action. | |
3378 | */ | |
3379 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
3380 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
3381 | "2937 SLI_CONFIG ext-buffer maibox command " | |
3382 | "(x%x/x%x) complete bsg job done, bsize:%d\n", | |
3383 | phba->mbox_ext_buf_ctx.nembType, | |
3384 | phba->mbox_ext_buf_ctx.mboxType, size); | |
b76f2dc9 JS |
3385 | lpfc_idiag_mbxacc_dump_bsg_mbox(phba, |
3386 | phba->mbox_ext_buf_ctx.nembType, | |
3387 | phba->mbox_ext_buf_ctx.mboxType, | |
3388 | dma_ebuf, sta_pos_addr, | |
3389 | phba->mbox_ext_buf_ctx.mbx_dmabuf, 0); | |
7ad20aa9 JS |
3390 | } else |
3391 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
3392 | ||
3393 | job_done_out: | |
3394 | if (!job) | |
3395 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, | |
3396 | "2938 SLI_CONFIG ext-buffer maibox " | |
3397 | "command (x%x/x%x) failure, rc:x%x\n", | |
3398 | phba->mbox_ext_buf_ctx.nembType, | |
3399 | phba->mbox_ext_buf_ctx.mboxType, rc); | |
3400 | /* state change */ | |
3401 | phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_DONE; | |
3402 | kfree(dd_data); | |
3403 | ||
3404 | return job; | |
3405 | } | |
3406 | ||
3407 | /** | |
3408 | * lpfc_bsg_issue_read_mbox_ext_cmpl - compl handler for multi-buffer read mbox | |
3409 | * @phba: Pointer to HBA context object. | |
3410 | * @pmboxq: Pointer to mailbox command. | |
3411 | * | |
3412 | * This is completion handler function for mailbox read commands with multiple | |
3413 | * external buffers. | |
3414 | **/ | |
3415 | static void | |
3416 | lpfc_bsg_issue_read_mbox_ext_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) | |
3417 | { | |
3418 | struct fc_bsg_job *job; | |
3419 | ||
3420 | /* handle the BSG job with mailbox command */ | |
3421 | if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_ABTS) | |
3422 | pmboxq->u.mb.mbxStatus = MBXERR_ERROR; | |
3423 | ||
3424 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
3425 | "2939 SLI_CONFIG ext-buffer rd maibox command " | |
3426 | "complete, ctxState:x%x, mbxStatus:x%x\n", | |
3427 | phba->mbox_ext_buf_ctx.state, pmboxq->u.mb.mbxStatus); | |
3428 | ||
3429 | job = lpfc_bsg_issue_mbox_ext_handle_job(phba, pmboxq); | |
3430 | ||
3431 | if (pmboxq->u.mb.mbxStatus || phba->mbox_ext_buf_ctx.numBuf == 1) | |
3432 | lpfc_bsg_mbox_ext_session_reset(phba); | |
3433 | ||
3434 | /* free base driver mailbox structure memory */ | |
3435 | mempool_free(pmboxq, phba->mbox_mem_pool); | |
3436 | ||
3437 | /* complete the bsg job if we have it */ | |
3438 | if (job) | |
3439 | job->job_done(job); | |
3440 | ||
3441 | return; | |
3442 | } | |
3443 | ||
3444 | /** | |
3445 | * lpfc_bsg_issue_write_mbox_ext_cmpl - cmpl handler for multi-buffer write mbox | |
3446 | * @phba: Pointer to HBA context object. | |
3447 | * @pmboxq: Pointer to mailbox command. | |
3448 | * | |
3449 | * This is completion handler function for mailbox write commands with multiple | |
3450 | * external buffers. | |
3451 | **/ | |
3452 | static void | |
3453 | lpfc_bsg_issue_write_mbox_ext_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) | |
3454 | { | |
3455 | struct fc_bsg_job *job; | |
3456 | ||
3457 | /* handle the BSG job with the mailbox command */ | |
3458 | if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_ABTS) | |
3459 | pmboxq->u.mb.mbxStatus = MBXERR_ERROR; | |
3460 | ||
3461 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
3462 | "2940 SLI_CONFIG ext-buffer wr maibox command " | |
3463 | "complete, ctxState:x%x, mbxStatus:x%x\n", | |
3464 | phba->mbox_ext_buf_ctx.state, pmboxq->u.mb.mbxStatus); | |
3465 | ||
3466 | job = lpfc_bsg_issue_mbox_ext_handle_job(phba, pmboxq); | |
3467 | ||
3468 | /* free all memory, including dma buffers */ | |
3469 | mempool_free(pmboxq, phba->mbox_mem_pool); | |
3470 | lpfc_bsg_mbox_ext_session_reset(phba); | |
3471 | ||
3472 | /* complete the bsg job if we have it */ | |
3473 | if (job) | |
3474 | job->job_done(job); | |
3475 | ||
3476 | return; | |
3477 | } | |
3478 | ||
3479 | static void | |
3480 | lpfc_bsg_sli_cfg_dma_desc_setup(struct lpfc_hba *phba, enum nemb_type nemb_tp, | |
3481 | uint32_t index, struct lpfc_dmabuf *mbx_dmabuf, | |
3482 | struct lpfc_dmabuf *ext_dmabuf) | |
3483 | { | |
3484 | struct lpfc_sli_config_mbox *sli_cfg_mbx; | |
3485 | ||
3486 | /* pointer to the start of mailbox command */ | |
3487 | sli_cfg_mbx = (struct lpfc_sli_config_mbox *)mbx_dmabuf->virt; | |
3488 | ||
3489 | if (nemb_tp == nemb_mse) { | |
3490 | if (index == 0) { | |
3491 | sli_cfg_mbx->un.sli_config_emb0_subsys. | |
3492 | mse[index].pa_hi = | |
3493 | putPaddrHigh(mbx_dmabuf->phys + | |
3494 | sizeof(MAILBOX_t)); | |
3495 | sli_cfg_mbx->un.sli_config_emb0_subsys. | |
3496 | mse[index].pa_lo = | |
3497 | putPaddrLow(mbx_dmabuf->phys + | |
3498 | sizeof(MAILBOX_t)); | |
3499 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
3500 | "2943 SLI_CONFIG(mse)[%d], " | |
3501 | "bufLen:%d, addrHi:x%x, addrLo:x%x\n", | |
3502 | index, | |
3503 | sli_cfg_mbx->un.sli_config_emb0_subsys. | |
3504 | mse[index].buf_len, | |
3505 | sli_cfg_mbx->un.sli_config_emb0_subsys. | |
3506 | mse[index].pa_hi, | |
3507 | sli_cfg_mbx->un.sli_config_emb0_subsys. | |
3508 | mse[index].pa_lo); | |
3509 | } else { | |
3510 | sli_cfg_mbx->un.sli_config_emb0_subsys. | |
3511 | mse[index].pa_hi = | |
3512 | putPaddrHigh(ext_dmabuf->phys); | |
3513 | sli_cfg_mbx->un.sli_config_emb0_subsys. | |
3514 | mse[index].pa_lo = | |
3515 | putPaddrLow(ext_dmabuf->phys); | |
3516 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
3517 | "2944 SLI_CONFIG(mse)[%d], " | |
3518 | "bufLen:%d, addrHi:x%x, addrLo:x%x\n", | |
3519 | index, | |
3520 | sli_cfg_mbx->un.sli_config_emb0_subsys. | |
3521 | mse[index].buf_len, | |
3522 | sli_cfg_mbx->un.sli_config_emb0_subsys. | |
3523 | mse[index].pa_hi, | |
3524 | sli_cfg_mbx->un.sli_config_emb0_subsys. | |
3525 | mse[index].pa_lo); | |
3526 | } | |
3527 | } else { | |
3528 | if (index == 0) { | |
3529 | sli_cfg_mbx->un.sli_config_emb1_subsys. | |
3530 | hbd[index].pa_hi = | |
3531 | putPaddrHigh(mbx_dmabuf->phys + | |
3532 | sizeof(MAILBOX_t)); | |
3533 | sli_cfg_mbx->un.sli_config_emb1_subsys. | |
3534 | hbd[index].pa_lo = | |
3535 | putPaddrLow(mbx_dmabuf->phys + | |
3536 | sizeof(MAILBOX_t)); | |
3537 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
3538 | "3007 SLI_CONFIG(hbd)[%d], " | |
3539 | "bufLen:%d, addrHi:x%x, addrLo:x%x\n", | |
3540 | index, | |
3541 | bsg_bf_get(lpfc_mbox_sli_config_ecmn_hbd_len, | |
3542 | &sli_cfg_mbx->un. | |
3543 | sli_config_emb1_subsys.hbd[index]), | |
3544 | sli_cfg_mbx->un.sli_config_emb1_subsys. | |
3545 | hbd[index].pa_hi, | |
3546 | sli_cfg_mbx->un.sli_config_emb1_subsys. | |
3547 | hbd[index].pa_lo); | |
3548 | ||
3549 | } else { | |
3550 | sli_cfg_mbx->un.sli_config_emb1_subsys. | |
3551 | hbd[index].pa_hi = | |
3552 | putPaddrHigh(ext_dmabuf->phys); | |
3553 | sli_cfg_mbx->un.sli_config_emb1_subsys. | |
3554 | hbd[index].pa_lo = | |
3555 | putPaddrLow(ext_dmabuf->phys); | |
3556 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
3557 | "3008 SLI_CONFIG(hbd)[%d], " | |
3558 | "bufLen:%d, addrHi:x%x, addrLo:x%x\n", | |
3559 | index, | |
3560 | bsg_bf_get(lpfc_mbox_sli_config_ecmn_hbd_len, | |
3561 | &sli_cfg_mbx->un. | |
3562 | sli_config_emb1_subsys.hbd[index]), | |
3563 | sli_cfg_mbx->un.sli_config_emb1_subsys. | |
3564 | hbd[index].pa_hi, | |
3565 | sli_cfg_mbx->un.sli_config_emb1_subsys. | |
3566 | hbd[index].pa_lo); | |
3567 | } | |
3568 | } | |
3569 | return; | |
3570 | } | |
3571 | ||
3572 | /** | |
3573 | * lpfc_bsg_sli_cfg_mse_read_cmd_ext - sli_config non-embedded mailbox cmd read | |
3574 | * @phba: Pointer to HBA context object. | |
3575 | * @mb: Pointer to a BSG mailbox object. | |
3576 | * @nemb_tp: Enumerate of non-embedded mailbox command type. | |
3577 | * @dmabuff: Pointer to a DMA buffer descriptor. | |
3578 | * | |
3579 | * This routine performs SLI_CONFIG (0x9B) read mailbox command operation with | |
3580 | * non-embedded external bufffers. | |
3581 | **/ | |
3582 | static int | |
3583 | lpfc_bsg_sli_cfg_read_cmd_ext(struct lpfc_hba *phba, struct fc_bsg_job *job, | |
3584 | enum nemb_type nemb_tp, | |
3585 | struct lpfc_dmabuf *dmabuf) | |
3586 | { | |
3587 | struct lpfc_sli_config_mbox *sli_cfg_mbx; | |
3588 | struct dfc_mbox_req *mbox_req; | |
3589 | struct lpfc_dmabuf *curr_dmabuf, *next_dmabuf; | |
3590 | uint32_t ext_buf_cnt, ext_buf_index; | |
3591 | struct lpfc_dmabuf *ext_dmabuf = NULL; | |
3592 | struct bsg_job_data *dd_data = NULL; | |
3593 | LPFC_MBOXQ_t *pmboxq = NULL; | |
3594 | MAILBOX_t *pmb; | |
3595 | uint8_t *pmbx; | |
3596 | int rc, i; | |
3597 | ||
3598 | mbox_req = | |
3599 | (struct dfc_mbox_req *)job->request->rqst_data.h_vendor.vendor_cmd; | |
3600 | ||
3601 | /* pointer to the start of mailbox command */ | |
3602 | sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt; | |
3603 | ||
3604 | if (nemb_tp == nemb_mse) { | |
3605 | ext_buf_cnt = bsg_bf_get(lpfc_mbox_hdr_mse_cnt, | |
3606 | &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr); | |
3607 | if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_MSE) { | |
3608 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, | |
3609 | "2945 Handled SLI_CONFIG(mse) rd, " | |
3610 | "ext_buf_cnt(%d) out of range(%d)\n", | |
3611 | ext_buf_cnt, | |
3612 | LPFC_MBX_SLI_CONFIG_MAX_MSE); | |
3613 | rc = -ERANGE; | |
3614 | goto job_error; | |
3615 | } | |
3616 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
3617 | "2941 Handled SLI_CONFIG(mse) rd, " | |
3618 | "ext_buf_cnt:%d\n", ext_buf_cnt); | |
3619 | } else { | |
3620 | /* sanity check on interface type for support */ | |
3621 | if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != | |
3622 | LPFC_SLI_INTF_IF_TYPE_2) { | |
3623 | rc = -ENODEV; | |
3624 | goto job_error; | |
3625 | } | |
3626 | /* nemb_tp == nemb_hbd */ | |
3627 | ext_buf_cnt = sli_cfg_mbx->un.sli_config_emb1_subsys.hbd_count; | |
3628 | if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_HBD) { | |
3629 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, | |
3630 | "2946 Handled SLI_CONFIG(hbd) rd, " | |
3631 | "ext_buf_cnt(%d) out of range(%d)\n", | |
3632 | ext_buf_cnt, | |
3633 | LPFC_MBX_SLI_CONFIG_MAX_HBD); | |
3634 | rc = -ERANGE; | |
3635 | goto job_error; | |
3636 | } | |
3637 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
3638 | "2942 Handled SLI_CONFIG(hbd) rd, " | |
3639 | "ext_buf_cnt:%d\n", ext_buf_cnt); | |
3640 | } | |
3641 | ||
b76f2dc9 JS |
3642 | /* before dma descriptor setup */ |
3643 | lpfc_idiag_mbxacc_dump_bsg_mbox(phba, nemb_tp, mbox_rd, dma_mbox, | |
3644 | sta_pre_addr, dmabuf, ext_buf_cnt); | |
3645 | ||
7ad20aa9 JS |
3646 | /* reject non-embedded mailbox command with none external buffer */ |
3647 | if (ext_buf_cnt == 0) { | |
3648 | rc = -EPERM; | |
3649 | goto job_error; | |
3650 | } else if (ext_buf_cnt > 1) { | |
3651 | /* additional external read buffers */ | |
3652 | for (i = 1; i < ext_buf_cnt; i++) { | |
3653 | ext_dmabuf = lpfc_bsg_dma_page_alloc(phba); | |
3654 | if (!ext_dmabuf) { | |
3655 | rc = -ENOMEM; | |
3656 | goto job_error; | |
3657 | } | |
3658 | list_add_tail(&ext_dmabuf->list, | |
3659 | &phba->mbox_ext_buf_ctx.ext_dmabuf_list); | |
3660 | } | |
3661 | } | |
3662 | ||
3663 | /* bsg tracking structure */ | |
3664 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); | |
3665 | if (!dd_data) { | |
3666 | rc = -ENOMEM; | |
3667 | goto job_error; | |
3668 | } | |
3669 | ||
3670 | /* mailbox command structure for base driver */ | |
3671 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
3672 | if (!pmboxq) { | |
3673 | rc = -ENOMEM; | |
3674 | goto job_error; | |
3675 | } | |
3676 | memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); | |
3677 | ||
3678 | /* for the first external buffer */ | |
3679 | lpfc_bsg_sli_cfg_dma_desc_setup(phba, nemb_tp, 0, dmabuf, dmabuf); | |
3680 | ||
3681 | /* for the rest of external buffer descriptors if any */ | |
3682 | if (ext_buf_cnt > 1) { | |
3683 | ext_buf_index = 1; | |
3684 | list_for_each_entry_safe(curr_dmabuf, next_dmabuf, | |
3685 | &phba->mbox_ext_buf_ctx.ext_dmabuf_list, list) { | |
3686 | lpfc_bsg_sli_cfg_dma_desc_setup(phba, nemb_tp, | |
3687 | ext_buf_index, dmabuf, | |
3688 | curr_dmabuf); | |
3689 | ext_buf_index++; | |
3690 | } | |
3691 | } | |
3692 | ||
b76f2dc9 JS |
3693 | /* after dma descriptor setup */ |
3694 | lpfc_idiag_mbxacc_dump_bsg_mbox(phba, nemb_tp, mbox_rd, dma_mbox, | |
3695 | sta_pos_addr, dmabuf, ext_buf_cnt); | |
3696 | ||
7ad20aa9 JS |
3697 | /* construct base driver mbox command */ |
3698 | pmb = &pmboxq->u.mb; | |
3699 | pmbx = (uint8_t *)dmabuf->virt; | |
3700 | memcpy(pmb, pmbx, sizeof(*pmb)); | |
3701 | pmb->mbxOwner = OWN_HOST; | |
3702 | pmboxq->vport = phba->pport; | |
3703 | ||
3704 | /* multi-buffer handling context */ | |
3705 | phba->mbox_ext_buf_ctx.nembType = nemb_tp; | |
3706 | phba->mbox_ext_buf_ctx.mboxType = mbox_rd; | |
3707 | phba->mbox_ext_buf_ctx.numBuf = ext_buf_cnt; | |
3708 | phba->mbox_ext_buf_ctx.mbxTag = mbox_req->extMboxTag; | |
3709 | phba->mbox_ext_buf_ctx.seqNum = mbox_req->extSeqNum; | |
3710 | phba->mbox_ext_buf_ctx.mbx_dmabuf = dmabuf; | |
3711 | ||
3712 | /* callback for multi-buffer read mailbox command */ | |
3713 | pmboxq->mbox_cmpl = lpfc_bsg_issue_read_mbox_ext_cmpl; | |
3714 | ||
3715 | /* context fields to callback function */ | |
3716 | pmboxq->context1 = dd_data; | |
3717 | dd_data->type = TYPE_MBOX; | |
3718 | dd_data->context_un.mbox.pmboxq = pmboxq; | |
3719 | dd_data->context_un.mbox.mb = (MAILBOX_t *)pmbx; | |
3720 | dd_data->context_un.mbox.set_job = job; | |
3721 | job->dd_data = dd_data; | |
3722 | ||
3723 | /* state change */ | |
3724 | phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_PORT; | |
3725 | ||
026abb87 JS |
3726 | /* |
3727 | * Non-embedded mailbox subcommand data gets byte swapped here because | |
3728 | * the lower level driver code only does the first 64 mailbox words. | |
3729 | */ | |
3730 | if ((!bsg_bf_get(lpfc_mbox_hdr_emb, | |
3731 | &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr)) && | |
3732 | (nemb_tp == nemb_mse)) | |
3733 | lpfc_sli_pcimem_bcopy(&pmbx[sizeof(MAILBOX_t)], | |
3734 | &pmbx[sizeof(MAILBOX_t)], | |
3735 | sli_cfg_mbx->un.sli_config_emb0_subsys. | |
3736 | mse[0].buf_len); | |
3737 | ||
7ad20aa9 JS |
3738 | rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); |
3739 | if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY)) { | |
3740 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
3741 | "2947 Issued SLI_CONFIG ext-buffer " | |
3742 | "maibox command, rc:x%x\n", rc); | |
88a2cfbb | 3743 | return SLI_CONFIG_HANDLED; |
7ad20aa9 JS |
3744 | } |
3745 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, | |
3746 | "2948 Failed to issue SLI_CONFIG ext-buffer " | |
3747 | "maibox command, rc:x%x\n", rc); | |
3748 | rc = -EPIPE; | |
3749 | ||
3750 | job_error: | |
3751 | if (pmboxq) | |
3752 | mempool_free(pmboxq, phba->mbox_mem_pool); | |
3753 | lpfc_bsg_dma_page_list_free(phba, | |
3754 | &phba->mbox_ext_buf_ctx.ext_dmabuf_list); | |
3755 | kfree(dd_data); | |
3756 | phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_IDLE; | |
3757 | return rc; | |
3758 | } | |
3759 | ||
3760 | /** | |
3761 | * lpfc_bsg_sli_cfg_write_cmd_ext - sli_config non-embedded mailbox cmd write | |
3762 | * @phba: Pointer to HBA context object. | |
3763 | * @mb: Pointer to a BSG mailbox object. | |
3764 | * @dmabuff: Pointer to a DMA buffer descriptor. | |
3765 | * | |
3766 | * This routine performs SLI_CONFIG (0x9B) write mailbox command operation with | |
3767 | * non-embedded external bufffers. | |
3768 | **/ | |
3769 | static int | |
3770 | lpfc_bsg_sli_cfg_write_cmd_ext(struct lpfc_hba *phba, struct fc_bsg_job *job, | |
3771 | enum nemb_type nemb_tp, | |
3772 | struct lpfc_dmabuf *dmabuf) | |
3773 | { | |
3774 | struct dfc_mbox_req *mbox_req; | |
3775 | struct lpfc_sli_config_mbox *sli_cfg_mbx; | |
3776 | uint32_t ext_buf_cnt; | |
3777 | struct bsg_job_data *dd_data = NULL; | |
3778 | LPFC_MBOXQ_t *pmboxq = NULL; | |
3779 | MAILBOX_t *pmb; | |
3780 | uint8_t *mbx; | |
88a2cfbb | 3781 | int rc = SLI_CONFIG_NOT_HANDLED, i; |
7ad20aa9 JS |
3782 | |
3783 | mbox_req = | |
3784 | (struct dfc_mbox_req *)job->request->rqst_data.h_vendor.vendor_cmd; | |
3785 | ||
3786 | /* pointer to the start of mailbox command */ | |
3787 | sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt; | |
3788 | ||
3789 | if (nemb_tp == nemb_mse) { | |
3790 | ext_buf_cnt = bsg_bf_get(lpfc_mbox_hdr_mse_cnt, | |
3791 | &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr); | |
3792 | if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_MSE) { | |
3793 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, | |
026abb87 | 3794 | "2953 Failed SLI_CONFIG(mse) wr, " |
7ad20aa9 JS |
3795 | "ext_buf_cnt(%d) out of range(%d)\n", |
3796 | ext_buf_cnt, | |
3797 | LPFC_MBX_SLI_CONFIG_MAX_MSE); | |
3798 | return -ERANGE; | |
3799 | } | |
3800 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
3801 | "2949 Handled SLI_CONFIG(mse) wr, " | |
3802 | "ext_buf_cnt:%d\n", ext_buf_cnt); | |
3803 | } else { | |
3804 | /* sanity check on interface type for support */ | |
3805 | if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != | |
3806 | LPFC_SLI_INTF_IF_TYPE_2) | |
3807 | return -ENODEV; | |
3808 | /* nemb_tp == nemb_hbd */ | |
3809 | ext_buf_cnt = sli_cfg_mbx->un.sli_config_emb1_subsys.hbd_count; | |
3810 | if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_HBD) { | |
3811 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, | |
026abb87 | 3812 | "2954 Failed SLI_CONFIG(hbd) wr, " |
7ad20aa9 JS |
3813 | "ext_buf_cnt(%d) out of range(%d)\n", |
3814 | ext_buf_cnt, | |
3815 | LPFC_MBX_SLI_CONFIG_MAX_HBD); | |
3816 | return -ERANGE; | |
3817 | } | |
3818 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
3819 | "2950 Handled SLI_CONFIG(hbd) wr, " | |
3820 | "ext_buf_cnt:%d\n", ext_buf_cnt); | |
3821 | } | |
3822 | ||
b76f2dc9 JS |
3823 | /* before dma buffer descriptor setup */ |
3824 | lpfc_idiag_mbxacc_dump_bsg_mbox(phba, nemb_tp, mbox_wr, dma_mbox, | |
3825 | sta_pre_addr, dmabuf, ext_buf_cnt); | |
3826 | ||
7ad20aa9 JS |
3827 | if (ext_buf_cnt == 0) |
3828 | return -EPERM; | |
3829 | ||
3830 | /* for the first external buffer */ | |
3831 | lpfc_bsg_sli_cfg_dma_desc_setup(phba, nemb_tp, 0, dmabuf, dmabuf); | |
3832 | ||
b76f2dc9 JS |
3833 | /* after dma descriptor setup */ |
3834 | lpfc_idiag_mbxacc_dump_bsg_mbox(phba, nemb_tp, mbox_wr, dma_mbox, | |
3835 | sta_pos_addr, dmabuf, ext_buf_cnt); | |
3836 | ||
7ad20aa9 JS |
3837 | /* log for looking forward */ |
3838 | for (i = 1; i < ext_buf_cnt; i++) { | |
3839 | if (nemb_tp == nemb_mse) | |
3840 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
3841 | "2951 SLI_CONFIG(mse), buf[%d]-length:%d\n", | |
3842 | i, sli_cfg_mbx->un.sli_config_emb0_subsys. | |
3843 | mse[i].buf_len); | |
3844 | else | |
3845 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
3846 | "2952 SLI_CONFIG(hbd), buf[%d]-length:%d\n", | |
3847 | i, bsg_bf_get(lpfc_mbox_sli_config_ecmn_hbd_len, | |
3848 | &sli_cfg_mbx->un.sli_config_emb1_subsys. | |
3849 | hbd[i])); | |
3850 | } | |
3851 | ||
3852 | /* multi-buffer handling context */ | |
3853 | phba->mbox_ext_buf_ctx.nembType = nemb_tp; | |
3854 | phba->mbox_ext_buf_ctx.mboxType = mbox_wr; | |
3855 | phba->mbox_ext_buf_ctx.numBuf = ext_buf_cnt; | |
3856 | phba->mbox_ext_buf_ctx.mbxTag = mbox_req->extMboxTag; | |
3857 | phba->mbox_ext_buf_ctx.seqNum = mbox_req->extSeqNum; | |
3858 | phba->mbox_ext_buf_ctx.mbx_dmabuf = dmabuf; | |
3859 | ||
3860 | if (ext_buf_cnt == 1) { | |
3861 | /* bsg tracking structure */ | |
3862 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); | |
3863 | if (!dd_data) { | |
3864 | rc = -ENOMEM; | |
3865 | goto job_error; | |
3866 | } | |
3867 | ||
3868 | /* mailbox command structure for base driver */ | |
3869 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
3870 | if (!pmboxq) { | |
3871 | rc = -ENOMEM; | |
3872 | goto job_error; | |
3873 | } | |
3874 | memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); | |
3875 | pmb = &pmboxq->u.mb; | |
3876 | mbx = (uint8_t *)dmabuf->virt; | |
3877 | memcpy(pmb, mbx, sizeof(*pmb)); | |
3878 | pmb->mbxOwner = OWN_HOST; | |
3879 | pmboxq->vport = phba->pport; | |
3880 | ||
3881 | /* callback for multi-buffer read mailbox command */ | |
3882 | pmboxq->mbox_cmpl = lpfc_bsg_issue_write_mbox_ext_cmpl; | |
3883 | ||
3884 | /* context fields to callback function */ | |
3885 | pmboxq->context1 = dd_data; | |
3886 | dd_data->type = TYPE_MBOX; | |
3887 | dd_data->context_un.mbox.pmboxq = pmboxq; | |
3888 | dd_data->context_un.mbox.mb = (MAILBOX_t *)mbx; | |
3889 | dd_data->context_un.mbox.set_job = job; | |
3890 | job->dd_data = dd_data; | |
3891 | ||
3892 | /* state change */ | |
3893 | phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_PORT; | |
3894 | ||
3895 | rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); | |
3896 | if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY)) { | |
3897 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
3898 | "2955 Issued SLI_CONFIG ext-buffer " | |
3899 | "maibox command, rc:x%x\n", rc); | |
88a2cfbb | 3900 | return SLI_CONFIG_HANDLED; |
7ad20aa9 JS |
3901 | } |
3902 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, | |
3903 | "2956 Failed to issue SLI_CONFIG ext-buffer " | |
3904 | "maibox command, rc:x%x\n", rc); | |
3905 | rc = -EPIPE; | |
026abb87 | 3906 | goto job_error; |
7ad20aa9 JS |
3907 | } |
3908 | ||
88a2cfbb JS |
3909 | /* wait for additoinal external buffers */ |
3910 | job->reply->result = 0; | |
3911 | job->job_done(job); | |
3912 | return SLI_CONFIG_HANDLED; | |
3913 | ||
7ad20aa9 JS |
3914 | job_error: |
3915 | if (pmboxq) | |
3916 | mempool_free(pmboxq, phba->mbox_mem_pool); | |
3917 | kfree(dd_data); | |
3918 | ||
3919 | return rc; | |
3920 | } | |
3921 | ||
3922 | /** | |
3923 | * lpfc_bsg_handle_sli_cfg_mbox - handle sli-cfg mailbox cmd with ext buffer | |
3924 | * @phba: Pointer to HBA context object. | |
3925 | * @mb: Pointer to a BSG mailbox object. | |
3926 | * @dmabuff: Pointer to a DMA buffer descriptor. | |
3927 | * | |
3928 | * This routine handles SLI_CONFIG (0x9B) mailbox command with non-embedded | |
3929 | * external bufffers, including both 0x9B with non-embedded MSEs and 0x9B | |
3930 | * with embedded sussystem 0x1 and opcodes with external HBDs. | |
3931 | **/ | |
3932 | static int | |
3933 | lpfc_bsg_handle_sli_cfg_mbox(struct lpfc_hba *phba, struct fc_bsg_job *job, | |
3934 | struct lpfc_dmabuf *dmabuf) | |
3935 | { | |
3936 | struct lpfc_sli_config_mbox *sli_cfg_mbx; | |
3937 | uint32_t subsys; | |
3938 | uint32_t opcode; | |
3939 | int rc = SLI_CONFIG_NOT_HANDLED; | |
3940 | ||
026abb87 | 3941 | /* state change on new multi-buffer pass-through mailbox command */ |
7ad20aa9 JS |
3942 | phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_HOST; |
3943 | ||
3944 | sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt; | |
3945 | ||
3946 | if (!bsg_bf_get(lpfc_mbox_hdr_emb, | |
3947 | &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr)) { | |
3948 | subsys = bsg_bf_get(lpfc_emb0_subcmnd_subsys, | |
3949 | &sli_cfg_mbx->un.sli_config_emb0_subsys); | |
3950 | opcode = bsg_bf_get(lpfc_emb0_subcmnd_opcode, | |
3951 | &sli_cfg_mbx->un.sli_config_emb0_subsys); | |
3952 | if (subsys == SLI_CONFIG_SUBSYS_FCOE) { | |
3953 | switch (opcode) { | |
3954 | case FCOE_OPCODE_READ_FCF: | |
3955 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
3956 | "2957 Handled SLI_CONFIG " | |
3957 | "subsys_fcoe, opcode:x%x\n", | |
3958 | opcode); | |
3959 | rc = lpfc_bsg_sli_cfg_read_cmd_ext(phba, job, | |
3960 | nemb_mse, dmabuf); | |
3961 | break; | |
3962 | case FCOE_OPCODE_ADD_FCF: | |
3963 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
3964 | "2958 Handled SLI_CONFIG " | |
3965 | "subsys_fcoe, opcode:x%x\n", | |
3966 | opcode); | |
3967 | rc = lpfc_bsg_sli_cfg_write_cmd_ext(phba, job, | |
3968 | nemb_mse, dmabuf); | |
3969 | break; | |
3970 | default: | |
3971 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
026abb87 | 3972 | "2959 Reject SLI_CONFIG " |
7ad20aa9 JS |
3973 | "subsys_fcoe, opcode:x%x\n", |
3974 | opcode); | |
026abb87 JS |
3975 | rc = -EPERM; |
3976 | break; | |
3977 | } | |
3978 | } else if (subsys == SLI_CONFIG_SUBSYS_COMN) { | |
3979 | switch (opcode) { | |
3980 | case COMN_OPCODE_GET_CNTL_ADDL_ATTRIBUTES: | |
3981 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
3982 | "3106 Handled SLI_CONFIG " | |
6b5151fd | 3983 | "subsys_comn, opcode:x%x\n", |
026abb87 JS |
3984 | opcode); |
3985 | rc = lpfc_bsg_sli_cfg_read_cmd_ext(phba, job, | |
3986 | nemb_mse, dmabuf); | |
3987 | break; | |
3988 | default: | |
3989 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
3990 | "3107 Reject SLI_CONFIG " | |
6b5151fd | 3991 | "subsys_comn, opcode:x%x\n", |
026abb87 JS |
3992 | opcode); |
3993 | rc = -EPERM; | |
7ad20aa9 JS |
3994 | break; |
3995 | } | |
3996 | } else { | |
3997 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
026abb87 | 3998 | "2977 Reject SLI_CONFIG " |
7ad20aa9 JS |
3999 | "subsys:x%d, opcode:x%x\n", |
4000 | subsys, opcode); | |
026abb87 | 4001 | rc = -EPERM; |
7ad20aa9 JS |
4002 | } |
4003 | } else { | |
4004 | subsys = bsg_bf_get(lpfc_emb1_subcmnd_subsys, | |
4005 | &sli_cfg_mbx->un.sli_config_emb1_subsys); | |
4006 | opcode = bsg_bf_get(lpfc_emb1_subcmnd_opcode, | |
4007 | &sli_cfg_mbx->un.sli_config_emb1_subsys); | |
4008 | if (subsys == SLI_CONFIG_SUBSYS_COMN) { | |
4009 | switch (opcode) { | |
4010 | case COMN_OPCODE_READ_OBJECT: | |
4011 | case COMN_OPCODE_READ_OBJECT_LIST: | |
4012 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4013 | "2960 Handled SLI_CONFIG " | |
4014 | "subsys_comn, opcode:x%x\n", | |
4015 | opcode); | |
4016 | rc = lpfc_bsg_sli_cfg_read_cmd_ext(phba, job, | |
4017 | nemb_hbd, dmabuf); | |
4018 | break; | |
4019 | case COMN_OPCODE_WRITE_OBJECT: | |
4020 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4021 | "2961 Handled SLI_CONFIG " | |
4022 | "subsys_comn, opcode:x%x\n", | |
4023 | opcode); | |
4024 | rc = lpfc_bsg_sli_cfg_write_cmd_ext(phba, job, | |
4025 | nemb_hbd, dmabuf); | |
4026 | break; | |
4027 | default: | |
4028 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4029 | "2962 Not handled SLI_CONFIG " | |
4030 | "subsys_comn, opcode:x%x\n", | |
4031 | opcode); | |
4032 | rc = SLI_CONFIG_NOT_HANDLED; | |
4033 | break; | |
4034 | } | |
4035 | } else { | |
4036 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
026abb87 | 4037 | "2978 Not handled SLI_CONFIG " |
7ad20aa9 JS |
4038 | "subsys:x%d, opcode:x%x\n", |
4039 | subsys, opcode); | |
4040 | rc = SLI_CONFIG_NOT_HANDLED; | |
4041 | } | |
4042 | } | |
026abb87 JS |
4043 | |
4044 | /* state reset on not handled new multi-buffer mailbox command */ | |
4045 | if (rc != SLI_CONFIG_HANDLED) | |
4046 | phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_IDLE; | |
4047 | ||
7ad20aa9 JS |
4048 | return rc; |
4049 | } | |
4050 | ||
4051 | /** | |
4052 | * lpfc_bsg_mbox_ext_abort_req - request to abort mbox command with ext buffers | |
4053 | * @phba: Pointer to HBA context object. | |
4054 | * | |
4055 | * This routine is for requesting to abort a pass-through mailbox command with | |
4056 | * multiple external buffers due to error condition. | |
4057 | **/ | |
4058 | static void | |
4059 | lpfc_bsg_mbox_ext_abort(struct lpfc_hba *phba) | |
4060 | { | |
4061 | if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_PORT) | |
4062 | phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_ABTS; | |
4063 | else | |
4064 | lpfc_bsg_mbox_ext_session_reset(phba); | |
4065 | return; | |
4066 | } | |
4067 | ||
4068 | /** | |
4069 | * lpfc_bsg_read_ebuf_get - get the next mailbox read external buffer | |
4070 | * @phba: Pointer to HBA context object. | |
4071 | * @dmabuf: Pointer to a DMA buffer descriptor. | |
4072 | * | |
4073 | * This routine extracts the next mailbox read external buffer back to | |
4074 | * user space through BSG. | |
4075 | **/ | |
4076 | static int | |
4077 | lpfc_bsg_read_ebuf_get(struct lpfc_hba *phba, struct fc_bsg_job *job) | |
4078 | { | |
4079 | struct lpfc_sli_config_mbox *sli_cfg_mbx; | |
4080 | struct lpfc_dmabuf *dmabuf; | |
4081 | uint8_t *pbuf; | |
4082 | uint32_t size; | |
4083 | uint32_t index; | |
4084 | ||
4085 | index = phba->mbox_ext_buf_ctx.seqNum; | |
4086 | phba->mbox_ext_buf_ctx.seqNum++; | |
4087 | ||
4088 | sli_cfg_mbx = (struct lpfc_sli_config_mbox *) | |
4089 | phba->mbox_ext_buf_ctx.mbx_dmabuf->virt; | |
4090 | ||
4091 | if (phba->mbox_ext_buf_ctx.nembType == nemb_mse) { | |
4092 | size = bsg_bf_get(lpfc_mbox_sli_config_mse_len, | |
4093 | &sli_cfg_mbx->un.sli_config_emb0_subsys.mse[index]); | |
4094 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4095 | "2963 SLI_CONFIG (mse) ext-buffer rd get " | |
4096 | "buffer[%d], size:%d\n", index, size); | |
4097 | } else { | |
4098 | size = bsg_bf_get(lpfc_mbox_sli_config_ecmn_hbd_len, | |
4099 | &sli_cfg_mbx->un.sli_config_emb1_subsys.hbd[index]); | |
4100 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4101 | "2964 SLI_CONFIG (hbd) ext-buffer rd get " | |
4102 | "buffer[%d], size:%d\n", index, size); | |
4103 | } | |
4104 | if (list_empty(&phba->mbox_ext_buf_ctx.ext_dmabuf_list)) | |
4105 | return -EPIPE; | |
4106 | dmabuf = list_first_entry(&phba->mbox_ext_buf_ctx.ext_dmabuf_list, | |
4107 | struct lpfc_dmabuf, list); | |
4108 | list_del_init(&dmabuf->list); | |
b76f2dc9 JS |
4109 | |
4110 | /* after dma buffer descriptor setup */ | |
4111 | lpfc_idiag_mbxacc_dump_bsg_mbox(phba, phba->mbox_ext_buf_ctx.nembType, | |
4112 | mbox_rd, dma_ebuf, sta_pos_addr, | |
4113 | dmabuf, index); | |
4114 | ||
7ad20aa9 JS |
4115 | pbuf = (uint8_t *)dmabuf->virt; |
4116 | job->reply->reply_payload_rcv_len = | |
4117 | sg_copy_from_buffer(job->reply_payload.sg_list, | |
4118 | job->reply_payload.sg_cnt, | |
4119 | pbuf, size); | |
4120 | ||
4121 | lpfc_bsg_dma_page_free(phba, dmabuf); | |
4122 | ||
4123 | if (phba->mbox_ext_buf_ctx.seqNum == phba->mbox_ext_buf_ctx.numBuf) { | |
4124 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4125 | "2965 SLI_CONFIG (hbd) ext-buffer rd mbox " | |
4126 | "command session done\n"); | |
4127 | lpfc_bsg_mbox_ext_session_reset(phba); | |
4128 | } | |
4129 | ||
4130 | job->reply->result = 0; | |
4131 | job->job_done(job); | |
4132 | ||
4133 | return SLI_CONFIG_HANDLED; | |
4134 | } | |
4135 | ||
4136 | /** | |
4137 | * lpfc_bsg_write_ebuf_set - set the next mailbox write external buffer | |
4138 | * @phba: Pointer to HBA context object. | |
4139 | * @dmabuf: Pointer to a DMA buffer descriptor. | |
4140 | * | |
4141 | * This routine sets up the next mailbox read external buffer obtained | |
4142 | * from user space through BSG. | |
4143 | **/ | |
4144 | static int | |
4145 | lpfc_bsg_write_ebuf_set(struct lpfc_hba *phba, struct fc_bsg_job *job, | |
4146 | struct lpfc_dmabuf *dmabuf) | |
4147 | { | |
4148 | struct lpfc_sli_config_mbox *sli_cfg_mbx; | |
4149 | struct bsg_job_data *dd_data = NULL; | |
4150 | LPFC_MBOXQ_t *pmboxq = NULL; | |
4151 | MAILBOX_t *pmb; | |
4152 | enum nemb_type nemb_tp; | |
4153 | uint8_t *pbuf; | |
4154 | uint32_t size; | |
4155 | uint32_t index; | |
4156 | int rc; | |
4157 | ||
4158 | index = phba->mbox_ext_buf_ctx.seqNum; | |
4159 | phba->mbox_ext_buf_ctx.seqNum++; | |
4160 | nemb_tp = phba->mbox_ext_buf_ctx.nembType; | |
4161 | ||
4162 | sli_cfg_mbx = (struct lpfc_sli_config_mbox *) | |
4163 | phba->mbox_ext_buf_ctx.mbx_dmabuf->virt; | |
4164 | ||
4165 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); | |
4166 | if (!dd_data) { | |
4167 | rc = -ENOMEM; | |
4168 | goto job_error; | |
4169 | } | |
4170 | ||
4171 | pbuf = (uint8_t *)dmabuf->virt; | |
4172 | size = job->request_payload.payload_len; | |
4173 | sg_copy_to_buffer(job->request_payload.sg_list, | |
4174 | job->request_payload.sg_cnt, | |
4175 | pbuf, size); | |
4176 | ||
4177 | if (phba->mbox_ext_buf_ctx.nembType == nemb_mse) { | |
4178 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4179 | "2966 SLI_CONFIG (mse) ext-buffer wr set " | |
4180 | "buffer[%d], size:%d\n", | |
4181 | phba->mbox_ext_buf_ctx.seqNum, size); | |
4182 | ||
4183 | } else { | |
4184 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4185 | "2967 SLI_CONFIG (hbd) ext-buffer wr set " | |
4186 | "buffer[%d], size:%d\n", | |
4187 | phba->mbox_ext_buf_ctx.seqNum, size); | |
4188 | ||
4189 | } | |
4190 | ||
4191 | /* set up external buffer descriptor and add to external buffer list */ | |
4192 | lpfc_bsg_sli_cfg_dma_desc_setup(phba, nemb_tp, index, | |
4193 | phba->mbox_ext_buf_ctx.mbx_dmabuf, | |
4194 | dmabuf); | |
4195 | list_add_tail(&dmabuf->list, &phba->mbox_ext_buf_ctx.ext_dmabuf_list); | |
4196 | ||
b76f2dc9 JS |
4197 | /* after write dma buffer */ |
4198 | lpfc_idiag_mbxacc_dump_bsg_mbox(phba, phba->mbox_ext_buf_ctx.nembType, | |
4199 | mbox_wr, dma_ebuf, sta_pos_addr, | |
4200 | dmabuf, index); | |
4201 | ||
7ad20aa9 JS |
4202 | if (phba->mbox_ext_buf_ctx.seqNum == phba->mbox_ext_buf_ctx.numBuf) { |
4203 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4204 | "2968 SLI_CONFIG ext-buffer wr all %d " | |
4205 | "ebuffers received\n", | |
4206 | phba->mbox_ext_buf_ctx.numBuf); | |
4207 | /* mailbox command structure for base driver */ | |
4208 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
4209 | if (!pmboxq) { | |
4210 | rc = -ENOMEM; | |
4211 | goto job_error; | |
4212 | } | |
4213 | memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); | |
4214 | pbuf = (uint8_t *)phba->mbox_ext_buf_ctx.mbx_dmabuf->virt; | |
4215 | pmb = &pmboxq->u.mb; | |
4216 | memcpy(pmb, pbuf, sizeof(*pmb)); | |
4217 | pmb->mbxOwner = OWN_HOST; | |
4218 | pmboxq->vport = phba->pport; | |
4219 | ||
4220 | /* callback for multi-buffer write mailbox command */ | |
4221 | pmboxq->mbox_cmpl = lpfc_bsg_issue_write_mbox_ext_cmpl; | |
4222 | ||
4223 | /* context fields to callback function */ | |
4224 | pmboxq->context1 = dd_data; | |
4225 | dd_data->type = TYPE_MBOX; | |
4226 | dd_data->context_un.mbox.pmboxq = pmboxq; | |
4227 | dd_data->context_un.mbox.mb = (MAILBOX_t *)pbuf; | |
4228 | dd_data->context_un.mbox.set_job = job; | |
4229 | job->dd_data = dd_data; | |
4230 | ||
4231 | /* state change */ | |
4232 | phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_PORT; | |
4233 | ||
4234 | rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); | |
4235 | if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY)) { | |
4236 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4237 | "2969 Issued SLI_CONFIG ext-buffer " | |
4238 | "maibox command, rc:x%x\n", rc); | |
88a2cfbb | 4239 | return SLI_CONFIG_HANDLED; |
7ad20aa9 JS |
4240 | } |
4241 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, | |
4242 | "2970 Failed to issue SLI_CONFIG ext-buffer " | |
4243 | "maibox command, rc:x%x\n", rc); | |
4244 | rc = -EPIPE; | |
4245 | goto job_error; | |
4246 | } | |
4247 | ||
4248 | /* wait for additoinal external buffers */ | |
4249 | job->reply->result = 0; | |
4250 | job->job_done(job); | |
4251 | return SLI_CONFIG_HANDLED; | |
4252 | ||
4253 | job_error: | |
4254 | lpfc_bsg_dma_page_free(phba, dmabuf); | |
4255 | kfree(dd_data); | |
4256 | ||
4257 | return rc; | |
4258 | } | |
4259 | ||
4260 | /** | |
4261 | * lpfc_bsg_handle_sli_cfg_ebuf - handle ext buffer with sli-cfg mailbox cmd | |
4262 | * @phba: Pointer to HBA context object. | |
4263 | * @mb: Pointer to a BSG mailbox object. | |
4264 | * @dmabuff: Pointer to a DMA buffer descriptor. | |
4265 | * | |
4266 | * This routine handles the external buffer with SLI_CONFIG (0x9B) mailbox | |
4267 | * command with multiple non-embedded external buffers. | |
4268 | **/ | |
4269 | static int | |
4270 | lpfc_bsg_handle_sli_cfg_ebuf(struct lpfc_hba *phba, struct fc_bsg_job *job, | |
4271 | struct lpfc_dmabuf *dmabuf) | |
4272 | { | |
4273 | int rc; | |
4274 | ||
4275 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4276 | "2971 SLI_CONFIG buffer (type:x%x)\n", | |
4277 | phba->mbox_ext_buf_ctx.mboxType); | |
4278 | ||
4279 | if (phba->mbox_ext_buf_ctx.mboxType == mbox_rd) { | |
4280 | if (phba->mbox_ext_buf_ctx.state != LPFC_BSG_MBOX_DONE) { | |
4281 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, | |
4282 | "2972 SLI_CONFIG rd buffer state " | |
4283 | "mismatch:x%x\n", | |
4284 | phba->mbox_ext_buf_ctx.state); | |
4285 | lpfc_bsg_mbox_ext_abort(phba); | |
4286 | return -EPIPE; | |
4287 | } | |
4288 | rc = lpfc_bsg_read_ebuf_get(phba, job); | |
4289 | if (rc == SLI_CONFIG_HANDLED) | |
4290 | lpfc_bsg_dma_page_free(phba, dmabuf); | |
4291 | } else { /* phba->mbox_ext_buf_ctx.mboxType == mbox_wr */ | |
4292 | if (phba->mbox_ext_buf_ctx.state != LPFC_BSG_MBOX_HOST) { | |
4293 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, | |
4294 | "2973 SLI_CONFIG wr buffer state " | |
4295 | "mismatch:x%x\n", | |
4296 | phba->mbox_ext_buf_ctx.state); | |
4297 | lpfc_bsg_mbox_ext_abort(phba); | |
4298 | return -EPIPE; | |
4299 | } | |
4300 | rc = lpfc_bsg_write_ebuf_set(phba, job, dmabuf); | |
7a470277 | 4301 | } |
7ad20aa9 | 4302 | return rc; |
3b5dd52a JS |
4303 | } |
4304 | ||
4305 | /** | |
7ad20aa9 | 4306 | * lpfc_bsg_handle_sli_cfg_ext - handle sli-cfg mailbox with external buffer |
3b5dd52a | 4307 | * @phba: Pointer to HBA context object. |
7ad20aa9 JS |
4308 | * @mb: Pointer to a BSG mailbox object. |
4309 | * @dmabuff: Pointer to a DMA buffer descriptor. | |
3b5dd52a | 4310 | * |
7ad20aa9 JS |
4311 | * This routine checkes and handles non-embedded multi-buffer SLI_CONFIG |
4312 | * (0x9B) mailbox commands and external buffers. | |
3b5dd52a | 4313 | **/ |
7ad20aa9 JS |
4314 | static int |
4315 | lpfc_bsg_handle_sli_cfg_ext(struct lpfc_hba *phba, struct fc_bsg_job *job, | |
4316 | struct lpfc_dmabuf *dmabuf) | |
3b5dd52a | 4317 | { |
7ad20aa9 | 4318 | struct dfc_mbox_req *mbox_req; |
88a2cfbb | 4319 | int rc = SLI_CONFIG_NOT_HANDLED; |
7ad20aa9 JS |
4320 | |
4321 | mbox_req = | |
4322 | (struct dfc_mbox_req *)job->request->rqst_data.h_vendor.vendor_cmd; | |
4323 | ||
4324 | /* mbox command with/without single external buffer */ | |
4325 | if (mbox_req->extMboxTag == 0 && mbox_req->extSeqNum == 0) | |
88a2cfbb | 4326 | return rc; |
7ad20aa9 JS |
4327 | |
4328 | /* mbox command and first external buffer */ | |
4329 | if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_IDLE) { | |
4330 | if (mbox_req->extSeqNum == 1) { | |
4331 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4332 | "2974 SLI_CONFIG mailbox: tag:%d, " | |
4333 | "seq:%d\n", mbox_req->extMboxTag, | |
4334 | mbox_req->extSeqNum); | |
4335 | rc = lpfc_bsg_handle_sli_cfg_mbox(phba, job, dmabuf); | |
4336 | return rc; | |
4337 | } else | |
4338 | goto sli_cfg_ext_error; | |
3b5dd52a JS |
4339 | } |
4340 | ||
7ad20aa9 JS |
4341 | /* |
4342 | * handle additional external buffers | |
4343 | */ | |
4344 | ||
4345 | /* check broken pipe conditions */ | |
4346 | if (mbox_req->extMboxTag != phba->mbox_ext_buf_ctx.mbxTag) | |
4347 | goto sli_cfg_ext_error; | |
4348 | if (mbox_req->extSeqNum > phba->mbox_ext_buf_ctx.numBuf) | |
4349 | goto sli_cfg_ext_error; | |
4350 | if (mbox_req->extSeqNum != phba->mbox_ext_buf_ctx.seqNum + 1) | |
4351 | goto sli_cfg_ext_error; | |
4352 | ||
4353 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, | |
4354 | "2975 SLI_CONFIG mailbox external buffer: " | |
4355 | "extSta:x%x, tag:%d, seq:%d\n", | |
4356 | phba->mbox_ext_buf_ctx.state, mbox_req->extMboxTag, | |
4357 | mbox_req->extSeqNum); | |
4358 | rc = lpfc_bsg_handle_sli_cfg_ebuf(phba, job, dmabuf); | |
4359 | return rc; | |
4360 | ||
4361 | sli_cfg_ext_error: | |
4362 | /* all other cases, broken pipe */ | |
4363 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, | |
4364 | "2976 SLI_CONFIG mailbox broken pipe: " | |
4365 | "ctxSta:x%x, ctxNumBuf:%d " | |
4366 | "ctxTag:%d, ctxSeq:%d, tag:%d, seq:%d\n", | |
4367 | phba->mbox_ext_buf_ctx.state, | |
4368 | phba->mbox_ext_buf_ctx.numBuf, | |
4369 | phba->mbox_ext_buf_ctx.mbxTag, | |
4370 | phba->mbox_ext_buf_ctx.seqNum, | |
4371 | mbox_req->extMboxTag, mbox_req->extSeqNum); | |
4372 | ||
4373 | lpfc_bsg_mbox_ext_session_reset(phba); | |
4374 | ||
4375 | return -EPIPE; | |
3b5dd52a JS |
4376 | } |
4377 | ||
4378 | /** | |
4379 | * lpfc_bsg_issue_mbox - issues a mailbox command on behalf of an app | |
4380 | * @phba: Pointer to HBA context object. | |
4381 | * @mb: Pointer to a mailbox object. | |
4382 | * @vport: Pointer to a vport object. | |
4383 | * | |
4384 | * Allocate a tracking object, mailbox command memory, get a mailbox | |
4385 | * from the mailbox pool, copy the caller mailbox command. | |
4386 | * | |
4387 | * If offline and the sli is active we need to poll for the command (port is | |
4388 | * being reset) and com-plete the job, otherwise issue the mailbox command and | |
4389 | * let our completion handler finish the command. | |
4390 | **/ | |
4391 | static uint32_t | |
4392 | lpfc_bsg_issue_mbox(struct lpfc_hba *phba, struct fc_bsg_job *job, | |
4393 | struct lpfc_vport *vport) | |
4394 | { | |
7a470277 JS |
4395 | LPFC_MBOXQ_t *pmboxq = NULL; /* internal mailbox queue */ |
4396 | MAILBOX_t *pmb; /* shortcut to the pmboxq mailbox */ | |
4397 | /* a 4k buffer to hold the mb and extended data from/to the bsg */ | |
7ad20aa9 | 4398 | uint8_t *pmbx = NULL; |
7a470277 | 4399 | struct bsg_job_data *dd_data = NULL; /* bsg data tracking structure */ |
7ad20aa9 JS |
4400 | struct lpfc_dmabuf *dmabuf = NULL; |
4401 | struct dfc_mbox_req *mbox_req; | |
b6e3b9c6 JS |
4402 | struct READ_EVENT_LOG_VAR *rdEventLog; |
4403 | uint32_t transmit_length, receive_length, mode; | |
7ad20aa9 | 4404 | struct lpfc_mbx_sli4_config *sli4_config; |
b6e3b9c6 JS |
4405 | struct lpfc_mbx_nembed_cmd *nembed_sge; |
4406 | struct mbox_header *header; | |
4407 | struct ulp_bde64 *bde; | |
7a470277 | 4408 | uint8_t *ext = NULL; |
3b5dd52a | 4409 | int rc = 0; |
7a470277 | 4410 | uint8_t *from; |
7ad20aa9 JS |
4411 | uint32_t size; |
4412 | ||
7a470277 JS |
4413 | |
4414 | /* in case no data is transferred */ | |
4415 | job->reply->reply_payload_rcv_len = 0; | |
4416 | ||
b6e3b9c6 JS |
4417 | /* sanity check to protect driver */ |
4418 | if (job->reply_payload.payload_len > BSG_MBOX_SIZE || | |
4419 | job->request_payload.payload_len > BSG_MBOX_SIZE) { | |
4420 | rc = -ERANGE; | |
4421 | goto job_done; | |
4422 | } | |
4423 | ||
7ad20aa9 JS |
4424 | /* |
4425 | * Don't allow mailbox commands to be sent when blocked or when in | |
4426 | * the middle of discovery | |
4427 | */ | |
4428 | if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) { | |
4429 | rc = -EAGAIN; | |
4430 | goto job_done; | |
4431 | } | |
4432 | ||
4433 | mbox_req = | |
4434 | (struct dfc_mbox_req *)job->request->rqst_data.h_vendor.vendor_cmd; | |
4435 | ||
7a470277 | 4436 | /* check if requested extended data lengths are valid */ |
b6e3b9c6 JS |
4437 | if ((mbox_req->inExtWLen > BSG_MBOX_SIZE/sizeof(uint32_t)) || |
4438 | (mbox_req->outExtWLen > BSG_MBOX_SIZE/sizeof(uint32_t))) { | |
7a470277 JS |
4439 | rc = -ERANGE; |
4440 | goto job_done; | |
4441 | } | |
3b5dd52a | 4442 | |
7ad20aa9 JS |
4443 | dmabuf = lpfc_bsg_dma_page_alloc(phba); |
4444 | if (!dmabuf || !dmabuf->virt) { | |
4445 | rc = -ENOMEM; | |
4446 | goto job_done; | |
4447 | } | |
4448 | ||
4449 | /* Get the mailbox command or external buffer from BSG */ | |
4450 | pmbx = (uint8_t *)dmabuf->virt; | |
4451 | size = job->request_payload.payload_len; | |
4452 | sg_copy_to_buffer(job->request_payload.sg_list, | |
4453 | job->request_payload.sg_cnt, pmbx, size); | |
4454 | ||
4455 | /* Handle possible SLI_CONFIG with non-embedded payloads */ | |
4456 | if (phba->sli_rev == LPFC_SLI_REV4) { | |
4457 | rc = lpfc_bsg_handle_sli_cfg_ext(phba, job, dmabuf); | |
4458 | if (rc == SLI_CONFIG_HANDLED) | |
4459 | goto job_cont; | |
4460 | if (rc) | |
4461 | goto job_done; | |
4462 | /* SLI_CONFIG_NOT_HANDLED for other mailbox commands */ | |
4463 | } | |
4464 | ||
4465 | rc = lpfc_bsg_check_cmd_access(phba, (MAILBOX_t *)pmbx, vport); | |
4466 | if (rc != 0) | |
4467 | goto job_done; /* must be negative */ | |
4468 | ||
3b5dd52a JS |
4469 | /* allocate our bsg tracking structure */ |
4470 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); | |
4471 | if (!dd_data) { | |
4472 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
4473 | "2727 Failed allocation of dd_data\n"); | |
7a470277 JS |
4474 | rc = -ENOMEM; |
4475 | goto job_done; | |
3b5dd52a JS |
4476 | } |
4477 | ||
3b5dd52a JS |
4478 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
4479 | if (!pmboxq) { | |
7a470277 JS |
4480 | rc = -ENOMEM; |
4481 | goto job_done; | |
3b5dd52a | 4482 | } |
7a470277 | 4483 | memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); |
3b5dd52a | 4484 | |
3b5dd52a | 4485 | pmb = &pmboxq->u.mb; |
7ad20aa9 | 4486 | memcpy(pmb, pmbx, sizeof(*pmb)); |
3b5dd52a | 4487 | pmb->mbxOwner = OWN_HOST; |
3b5dd52a JS |
4488 | pmboxq->vport = vport; |
4489 | ||
c7495937 JS |
4490 | /* If HBA encountered an error attention, allow only DUMP |
4491 | * or RESTART mailbox commands until the HBA is restarted. | |
4492 | */ | |
4493 | if (phba->pport->stopped && | |
4494 | pmb->mbxCommand != MBX_DUMP_MEMORY && | |
4495 | pmb->mbxCommand != MBX_RESTART && | |
4496 | pmb->mbxCommand != MBX_WRITE_VPARMS && | |
4497 | pmb->mbxCommand != MBX_WRITE_WWN) | |
4498 | lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, | |
4499 | "2797 mbox: Issued mailbox cmd " | |
4500 | "0x%x while in stopped state.\n", | |
4501 | pmb->mbxCommand); | |
4502 | ||
7a470277 | 4503 | /* extended mailbox commands will need an extended buffer */ |
c7495937 | 4504 | if (mbox_req->inExtWLen || mbox_req->outExtWLen) { |
026abb87 JS |
4505 | from = pmbx; |
4506 | ext = from + sizeof(MAILBOX_t); | |
7a470277 JS |
4507 | pmboxq->context2 = ext; |
4508 | pmboxq->in_ext_byte_len = | |
4509 | mbox_req->inExtWLen * sizeof(uint32_t); | |
4510 | pmboxq->out_ext_byte_len = | |
c7495937 | 4511 | mbox_req->outExtWLen * sizeof(uint32_t); |
7a470277 JS |
4512 | pmboxq->mbox_offset_word = mbox_req->mbOffset; |
4513 | } | |
4514 | ||
4515 | /* biu diag will need a kernel buffer to transfer the data | |
4516 | * allocate our own buffer and setup the mailbox command to | |
4517 | * use ours | |
4518 | */ | |
4519 | if (pmb->mbxCommand == MBX_RUN_BIU_DIAG64) { | |
b6e3b9c6 JS |
4520 | transmit_length = pmb->un.varWords[1]; |
4521 | receive_length = pmb->un.varWords[4]; | |
c7495937 JS |
4522 | /* transmit length cannot be greater than receive length or |
4523 | * mailbox extension size | |
4524 | */ | |
4525 | if ((transmit_length > receive_length) || | |
88a2cfbb | 4526 | (transmit_length > BSG_MBOX_SIZE - sizeof(MAILBOX_t))) { |
c7495937 JS |
4527 | rc = -ERANGE; |
4528 | goto job_done; | |
4529 | } | |
7a470277 | 4530 | pmb->un.varBIUdiag.un.s2.xmit_bde64.addrHigh = |
7ad20aa9 | 4531 | putPaddrHigh(dmabuf->phys + sizeof(MAILBOX_t)); |
7a470277 | 4532 | pmb->un.varBIUdiag.un.s2.xmit_bde64.addrLow = |
7ad20aa9 | 4533 | putPaddrLow(dmabuf->phys + sizeof(MAILBOX_t)); |
7a470277 JS |
4534 | |
4535 | pmb->un.varBIUdiag.un.s2.rcv_bde64.addrHigh = | |
7ad20aa9 JS |
4536 | putPaddrHigh(dmabuf->phys + sizeof(MAILBOX_t) |
4537 | + pmb->un.varBIUdiag.un.s2.xmit_bde64.tus.f.bdeSize); | |
7a470277 | 4538 | pmb->un.varBIUdiag.un.s2.rcv_bde64.addrLow = |
7ad20aa9 JS |
4539 | putPaddrLow(dmabuf->phys + sizeof(MAILBOX_t) |
4540 | + pmb->un.varBIUdiag.un.s2.xmit_bde64.tus.f.bdeSize); | |
c7495937 | 4541 | } else if (pmb->mbxCommand == MBX_READ_EVENT_LOG) { |
b6e3b9c6 JS |
4542 | rdEventLog = &pmb->un.varRdEventLog; |
4543 | receive_length = rdEventLog->rcv_bde64.tus.f.bdeSize; | |
4544 | mode = bf_get(lpfc_event_log, rdEventLog); | |
c7495937 JS |
4545 | |
4546 | /* receive length cannot be greater than mailbox | |
4547 | * extension size | |
4548 | */ | |
88a2cfbb | 4549 | if (receive_length > BSG_MBOX_SIZE - sizeof(MAILBOX_t)) { |
c7495937 JS |
4550 | rc = -ERANGE; |
4551 | goto job_done; | |
4552 | } | |
4553 | ||
4554 | /* mode zero uses a bde like biu diags command */ | |
4555 | if (mode == 0) { | |
7ad20aa9 JS |
4556 | pmb->un.varWords[3] = putPaddrLow(dmabuf->phys |
4557 | + sizeof(MAILBOX_t)); | |
4558 | pmb->un.varWords[4] = putPaddrHigh(dmabuf->phys | |
4559 | + sizeof(MAILBOX_t)); | |
c7495937 JS |
4560 | } |
4561 | } else if (phba->sli_rev == LPFC_SLI_REV4) { | |
3ef6d24c JS |
4562 | /* Let type 4 (well known data) through because the data is |
4563 | * returned in varwords[4-8] | |
4564 | * otherwise check the recieve length and fetch the buffer addr | |
4565 | */ | |
4566 | if ((pmb->mbxCommand == MBX_DUMP_MEMORY) && | |
4567 | (pmb->un.varDmp.type != DMP_WELL_KNOWN)) { | |
c7495937 JS |
4568 | /* rebuild the command for sli4 using our own buffers |
4569 | * like we do for biu diags | |
4570 | */ | |
b6e3b9c6 | 4571 | receive_length = pmb->un.varWords[2]; |
c7495937 JS |
4572 | /* receive length cannot be greater than mailbox |
4573 | * extension size | |
4574 | */ | |
7ad20aa9 | 4575 | if (receive_length == 0) { |
c7495937 JS |
4576 | rc = -ERANGE; |
4577 | goto job_done; | |
4578 | } | |
7ad20aa9 JS |
4579 | pmb->un.varWords[3] = putPaddrLow(dmabuf->phys |
4580 | + sizeof(MAILBOX_t)); | |
4581 | pmb->un.varWords[4] = putPaddrHigh(dmabuf->phys | |
4582 | + sizeof(MAILBOX_t)); | |
c7495937 JS |
4583 | } else if ((pmb->mbxCommand == MBX_UPDATE_CFG) && |
4584 | pmb->un.varUpdateCfg.co) { | |
b6e3b9c6 | 4585 | bde = (struct ulp_bde64 *)&pmb->un.varWords[4]; |
c7495937 JS |
4586 | |
4587 | /* bde size cannot be greater than mailbox ext size */ | |
88a2cfbb JS |
4588 | if (bde->tus.f.bdeSize > |
4589 | BSG_MBOX_SIZE - sizeof(MAILBOX_t)) { | |
c7495937 JS |
4590 | rc = -ERANGE; |
4591 | goto job_done; | |
4592 | } | |
7ad20aa9 JS |
4593 | bde->addrHigh = putPaddrHigh(dmabuf->phys |
4594 | + sizeof(MAILBOX_t)); | |
4595 | bde->addrLow = putPaddrLow(dmabuf->phys | |
4596 | + sizeof(MAILBOX_t)); | |
515e0aa2 | 4597 | } else if (pmb->mbxCommand == MBX_SLI4_CONFIG) { |
7ad20aa9 JS |
4598 | /* Handling non-embedded SLI_CONFIG mailbox command */ |
4599 | sli4_config = &pmboxq->u.mqe.un.sli4_config; | |
4600 | if (!bf_get(lpfc_mbox_hdr_emb, | |
4601 | &sli4_config->header.cfg_mhdr)) { | |
4602 | /* rebuild the command for sli4 using our | |
4603 | * own buffers like we do for biu diags | |
4604 | */ | |
4605 | header = (struct mbox_header *) | |
4606 | &pmb->un.varWords[0]; | |
4607 | nembed_sge = (struct lpfc_mbx_nembed_cmd *) | |
4608 | &pmb->un.varWords[0]; | |
4609 | receive_length = nembed_sge->sge[0].length; | |
4610 | ||
4611 | /* receive length cannot be greater than | |
4612 | * mailbox extension size | |
4613 | */ | |
4614 | if ((receive_length == 0) || | |
88a2cfbb JS |
4615 | (receive_length > |
4616 | BSG_MBOX_SIZE - sizeof(MAILBOX_t))) { | |
7ad20aa9 JS |
4617 | rc = -ERANGE; |
4618 | goto job_done; | |
4619 | } | |
515e0aa2 | 4620 | |
7ad20aa9 JS |
4621 | nembed_sge->sge[0].pa_hi = |
4622 | putPaddrHigh(dmabuf->phys | |
4623 | + sizeof(MAILBOX_t)); | |
4624 | nembed_sge->sge[0].pa_lo = | |
4625 | putPaddrLow(dmabuf->phys | |
4626 | + sizeof(MAILBOX_t)); | |
515e0aa2 | 4627 | } |
c7495937 | 4628 | } |
7a470277 JS |
4629 | } |
4630 | ||
7ad20aa9 | 4631 | dd_data->context_un.mbox.dmabuffers = dmabuf; |
c7495937 | 4632 | |
7a470277 | 4633 | /* setup wake call as IOCB callback */ |
7ad20aa9 | 4634 | pmboxq->mbox_cmpl = lpfc_bsg_issue_mbox_cmpl; |
7a470277 JS |
4635 | |
4636 | /* setup context field to pass wait_queue pointer to wake function */ | |
4637 | pmboxq->context1 = dd_data; | |
4638 | dd_data->type = TYPE_MBOX; | |
4639 | dd_data->context_un.mbox.pmboxq = pmboxq; | |
7ad20aa9 | 4640 | dd_data->context_un.mbox.mb = (MAILBOX_t *)pmbx; |
7a470277 JS |
4641 | dd_data->context_un.mbox.set_job = job; |
4642 | dd_data->context_un.mbox.ext = ext; | |
4643 | dd_data->context_un.mbox.mbOffset = mbox_req->mbOffset; | |
4644 | dd_data->context_un.mbox.inExtWLen = mbox_req->inExtWLen; | |
c7495937 | 4645 | dd_data->context_un.mbox.outExtWLen = mbox_req->outExtWLen; |
7a470277 JS |
4646 | job->dd_data = dd_data; |
4647 | ||
3b5dd52a JS |
4648 | if ((vport->fc_flag & FC_OFFLINE_MODE) || |
4649 | (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE))) { | |
4650 | rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); | |
4651 | if (rc != MBX_SUCCESS) { | |
7a470277 JS |
4652 | rc = (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV; |
4653 | goto job_done; | |
3b5dd52a JS |
4654 | } |
4655 | ||
7a470277 | 4656 | /* job finished, copy the data */ |
7ad20aa9 | 4657 | memcpy(pmbx, pmb, sizeof(*pmb)); |
3b5dd52a JS |
4658 | job->reply->reply_payload_rcv_len = |
4659 | sg_copy_from_buffer(job->reply_payload.sg_list, | |
7ad20aa9 JS |
4660 | job->reply_payload.sg_cnt, |
4661 | pmbx, size); | |
3b5dd52a | 4662 | /* not waiting mbox already done */ |
7a470277 JS |
4663 | rc = 0; |
4664 | goto job_done; | |
3b5dd52a JS |
4665 | } |
4666 | ||
3b5dd52a | 4667 | rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); |
7a470277 JS |
4668 | if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY)) |
4669 | return 1; /* job started */ | |
4670 | ||
4671 | job_done: | |
4672 | /* common exit for error or job completed inline */ | |
7a470277 | 4673 | if (pmboxq) |
3b5dd52a | 4674 | mempool_free(pmboxq, phba->mbox_mem_pool); |
7ad20aa9 | 4675 | lpfc_bsg_dma_page_free(phba, dmabuf); |
7a470277 | 4676 | kfree(dd_data); |
3b5dd52a | 4677 | |
7ad20aa9 | 4678 | job_cont: |
7a470277 | 4679 | return rc; |
3b5dd52a JS |
4680 | } |
4681 | ||
4682 | /** | |
4683 | * lpfc_bsg_mbox_cmd - process an fc bsg LPFC_BSG_VENDOR_MBOX command | |
4684 | * @job: MBOX fc_bsg_job for LPFC_BSG_VENDOR_MBOX. | |
4685 | **/ | |
4686 | static int | |
4687 | lpfc_bsg_mbox_cmd(struct fc_bsg_job *job) | |
4688 | { | |
4689 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
4690 | struct lpfc_hba *phba = vport->phba; | |
7ad20aa9 | 4691 | struct dfc_mbox_req *mbox_req; |
3b5dd52a JS |
4692 | int rc = 0; |
4693 | ||
7ad20aa9 | 4694 | /* mix-and-match backward compatibility */ |
3b5dd52a JS |
4695 | job->reply->reply_payload_rcv_len = 0; |
4696 | if (job->request_len < | |
4697 | sizeof(struct fc_bsg_request) + sizeof(struct dfc_mbox_req)) { | |
7ad20aa9 JS |
4698 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
4699 | "2737 Mix-and-match backward compability " | |
4700 | "between MBOX_REQ old size:%d and " | |
4701 | "new request size:%d\n", | |
4702 | (int)(job->request_len - | |
4703 | sizeof(struct fc_bsg_request)), | |
4704 | (int)sizeof(struct dfc_mbox_req)); | |
4705 | mbox_req = (struct dfc_mbox_req *) | |
4706 | job->request->rqst_data.h_vendor.vendor_cmd; | |
4707 | mbox_req->extMboxTag = 0; | |
4708 | mbox_req->extSeqNum = 0; | |
3b5dd52a JS |
4709 | } |
4710 | ||
4711 | rc = lpfc_bsg_issue_mbox(phba, job, vport); | |
4712 | ||
3b5dd52a JS |
4713 | if (rc == 0) { |
4714 | /* job done */ | |
4715 | job->reply->result = 0; | |
4716 | job->dd_data = NULL; | |
4717 | job->job_done(job); | |
4718 | } else if (rc == 1) | |
4719 | /* job submitted, will complete later*/ | |
4720 | rc = 0; /* return zero, no error */ | |
4721 | else { | |
4722 | /* some error occurred */ | |
4723 | job->reply->result = rc; | |
4724 | job->dd_data = NULL; | |
4725 | } | |
4726 | ||
4727 | return rc; | |
4728 | } | |
4729 | ||
e2aed29f JS |
4730 | /** |
4731 | * lpfc_bsg_menlo_cmd_cmp - lpfc_menlo_cmd completion handler | |
4732 | * @phba: Pointer to HBA context object. | |
4733 | * @cmdiocbq: Pointer to command iocb. | |
4734 | * @rspiocbq: Pointer to response iocb. | |
4735 | * | |
4736 | * This function is the completion handler for iocbs issued using | |
4737 | * lpfc_menlo_cmd function. This function is called by the | |
4738 | * ring event handler function without any lock held. This function | |
4739 | * can be called from both worker thread context and interrupt | |
4740 | * context. This function also can be called from another thread which | |
4741 | * cleans up the SLI layer objects. | |
4742 | * This function copies the contents of the response iocb to the | |
4743 | * response iocb memory object provided by the caller of | |
4744 | * lpfc_sli_issue_iocb_wait and then wakes up the thread which | |
4745 | * sleeps for the iocb completion. | |
4746 | **/ | |
4747 | static void | |
4748 | lpfc_bsg_menlo_cmd_cmp(struct lpfc_hba *phba, | |
4749 | struct lpfc_iocbq *cmdiocbq, | |
4750 | struct lpfc_iocbq *rspiocbq) | |
4751 | { | |
4752 | struct bsg_job_data *dd_data; | |
4753 | struct fc_bsg_job *job; | |
4754 | IOCB_t *rsp; | |
4755 | struct lpfc_dmabuf *bmp; | |
4756 | struct lpfc_bsg_menlo *menlo; | |
4757 | unsigned long flags; | |
4758 | struct menlo_response *menlo_resp; | |
4759 | int rc = 0; | |
4760 | ||
4761 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
4762 | dd_data = cmdiocbq->context1; | |
4763 | if (!dd_data) { | |
4764 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
4765 | return; | |
4766 | } | |
4767 | ||
4768 | menlo = &dd_data->context_un.menlo; | |
4769 | job = menlo->set_job; | |
4770 | job->dd_data = NULL; /* so timeout handler does not reply */ | |
4771 | ||
5989b8d4 | 4772 | spin_lock(&phba->hbalock); |
e2aed29f JS |
4773 | cmdiocbq->iocb_flag |= LPFC_IO_WAKE; |
4774 | if (cmdiocbq->context2 && rspiocbq) | |
4775 | memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb, | |
4776 | &rspiocbq->iocb, sizeof(IOCB_t)); | |
5989b8d4 | 4777 | spin_unlock(&phba->hbalock); |
e2aed29f JS |
4778 | |
4779 | bmp = menlo->bmp; | |
4780 | rspiocbq = menlo->rspiocbq; | |
4781 | rsp = &rspiocbq->iocb; | |
4782 | ||
4783 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, | |
4784 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
4785 | pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list, | |
4786 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); | |
4787 | ||
4788 | /* always return the xri, this would be used in the case | |
4789 | * of a menlo download to allow the data to be sent as a continuation | |
4790 | * of the exchange. | |
4791 | */ | |
4792 | menlo_resp = (struct menlo_response *) | |
4793 | job->reply->reply_data.vendor_reply.vendor_rsp; | |
4794 | menlo_resp->xri = rsp->ulpContext; | |
4795 | if (rsp->ulpStatus) { | |
4796 | if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) { | |
4797 | switch (rsp->un.ulpWord[4] & 0xff) { | |
4798 | case IOERR_SEQUENCE_TIMEOUT: | |
4799 | rc = -ETIMEDOUT; | |
4800 | break; | |
4801 | case IOERR_INVALID_RPI: | |
4802 | rc = -EFAULT; | |
4803 | break; | |
4804 | default: | |
4805 | rc = -EACCES; | |
4806 | break; | |
4807 | } | |
4808 | } else | |
4809 | rc = -EACCES; | |
4810 | } else | |
4811 | job->reply->reply_payload_rcv_len = | |
4812 | rsp->un.genreq64.bdl.bdeSize; | |
4813 | ||
4814 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); | |
4815 | lpfc_sli_release_iocbq(phba, rspiocbq); | |
4816 | lpfc_sli_release_iocbq(phba, cmdiocbq); | |
4817 | kfree(bmp); | |
4818 | kfree(dd_data); | |
4819 | /* make error code available to userspace */ | |
4820 | job->reply->result = rc; | |
4821 | /* complete the job back to userspace */ | |
4822 | job->job_done(job); | |
4823 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
4824 | return; | |
4825 | } | |
4826 | ||
4827 | /** | |
4828 | * lpfc_menlo_cmd - send an ioctl for menlo hardware | |
4829 | * @job: fc_bsg_job to handle | |
4830 | * | |
4831 | * This function issues a gen request 64 CR ioctl for all menlo cmd requests, | |
4832 | * all the command completions will return the xri for the command. | |
4833 | * For menlo data requests a gen request 64 CX is used to continue the exchange | |
4834 | * supplied in the menlo request header xri field. | |
4835 | **/ | |
4836 | static int | |
4837 | lpfc_menlo_cmd(struct fc_bsg_job *job) | |
4838 | { | |
4839 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
4840 | struct lpfc_hba *phba = vport->phba; | |
4841 | struct lpfc_iocbq *cmdiocbq, *rspiocbq; | |
4842 | IOCB_t *cmd, *rsp; | |
4843 | int rc = 0; | |
4844 | struct menlo_command *menlo_cmd; | |
4845 | struct menlo_response *menlo_resp; | |
4846 | struct lpfc_dmabuf *bmp = NULL; | |
4847 | int request_nseg; | |
4848 | int reply_nseg; | |
4849 | struct scatterlist *sgel = NULL; | |
4850 | int numbde; | |
4851 | dma_addr_t busaddr; | |
4852 | struct bsg_job_data *dd_data; | |
4853 | struct ulp_bde64 *bpl = NULL; | |
4854 | ||
4855 | /* in case no data is returned return just the return code */ | |
4856 | job->reply->reply_payload_rcv_len = 0; | |
4857 | ||
4858 | if (job->request_len < | |
4859 | sizeof(struct fc_bsg_request) + | |
4860 | sizeof(struct menlo_command)) { | |
4861 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
4862 | "2784 Received MENLO_CMD request below " | |
4863 | "minimum size\n"); | |
4864 | rc = -ERANGE; | |
4865 | goto no_dd_data; | |
4866 | } | |
4867 | ||
4868 | if (job->reply_len < | |
4869 | sizeof(struct fc_bsg_request) + sizeof(struct menlo_response)) { | |
4870 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
4871 | "2785 Received MENLO_CMD reply below " | |
4872 | "minimum size\n"); | |
4873 | rc = -ERANGE; | |
4874 | goto no_dd_data; | |
4875 | } | |
4876 | ||
4877 | if (!(phba->menlo_flag & HBA_MENLO_SUPPORT)) { | |
4878 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
4879 | "2786 Adapter does not support menlo " | |
4880 | "commands\n"); | |
4881 | rc = -EPERM; | |
4882 | goto no_dd_data; | |
4883 | } | |
4884 | ||
4885 | menlo_cmd = (struct menlo_command *) | |
4886 | job->request->rqst_data.h_vendor.vendor_cmd; | |
4887 | ||
4888 | menlo_resp = (struct menlo_response *) | |
4889 | job->reply->reply_data.vendor_reply.vendor_rsp; | |
4890 | ||
4891 | /* allocate our bsg tracking structure */ | |
4892 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); | |
4893 | if (!dd_data) { | |
4894 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
4895 | "2787 Failed allocation of dd_data\n"); | |
4896 | rc = -ENOMEM; | |
4897 | goto no_dd_data; | |
4898 | } | |
4899 | ||
4900 | bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
4901 | if (!bmp) { | |
4902 | rc = -ENOMEM; | |
4903 | goto free_dd; | |
4904 | } | |
4905 | ||
4906 | cmdiocbq = lpfc_sli_get_iocbq(phba); | |
4907 | if (!cmdiocbq) { | |
4908 | rc = -ENOMEM; | |
4909 | goto free_bmp; | |
4910 | } | |
4911 | ||
4912 | rspiocbq = lpfc_sli_get_iocbq(phba); | |
4913 | if (!rspiocbq) { | |
4914 | rc = -ENOMEM; | |
4915 | goto free_cmdiocbq; | |
4916 | } | |
4917 | ||
4918 | rsp = &rspiocbq->iocb; | |
4919 | ||
4920 | bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys); | |
4921 | if (!bmp->virt) { | |
4922 | rc = -ENOMEM; | |
4923 | goto free_rspiocbq; | |
4924 | } | |
4925 | ||
4926 | INIT_LIST_HEAD(&bmp->list); | |
4927 | bpl = (struct ulp_bde64 *) bmp->virt; | |
4928 | request_nseg = pci_map_sg(phba->pcidev, job->request_payload.sg_list, | |
4929 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
4930 | for_each_sg(job->request_payload.sg_list, sgel, request_nseg, numbde) { | |
4931 | busaddr = sg_dma_address(sgel); | |
4932 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
4933 | bpl->tus.f.bdeSize = sg_dma_len(sgel); | |
4934 | bpl->tus.w = cpu_to_le32(bpl->tus.w); | |
4935 | bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr)); | |
4936 | bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr)); | |
4937 | bpl++; | |
4938 | } | |
4939 | ||
4940 | reply_nseg = pci_map_sg(phba->pcidev, job->reply_payload.sg_list, | |
4941 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); | |
4942 | for_each_sg(job->reply_payload.sg_list, sgel, reply_nseg, numbde) { | |
4943 | busaddr = sg_dma_address(sgel); | |
4944 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; | |
4945 | bpl->tus.f.bdeSize = sg_dma_len(sgel); | |
4946 | bpl->tus.w = cpu_to_le32(bpl->tus.w); | |
4947 | bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr)); | |
4948 | bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr)); | |
4949 | bpl++; | |
4950 | } | |
4951 | ||
4952 | cmd = &cmdiocbq->iocb; | |
4953 | cmd->un.genreq64.bdl.ulpIoTag32 = 0; | |
4954 | cmd->un.genreq64.bdl.addrHigh = putPaddrHigh(bmp->phys); | |
4955 | cmd->un.genreq64.bdl.addrLow = putPaddrLow(bmp->phys); | |
4956 | cmd->un.genreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; | |
4957 | cmd->un.genreq64.bdl.bdeSize = | |
4958 | (request_nseg + reply_nseg) * sizeof(struct ulp_bde64); | |
4959 | cmd->un.genreq64.w5.hcsw.Fctl = (SI | LA); | |
4960 | cmd->un.genreq64.w5.hcsw.Dfctl = 0; | |
4961 | cmd->un.genreq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CMD; | |
4962 | cmd->un.genreq64.w5.hcsw.Type = MENLO_TRANSPORT_TYPE; /* 0xfe */ | |
4963 | cmd->ulpBdeCount = 1; | |
4964 | cmd->ulpClass = CLASS3; | |
4965 | cmd->ulpOwner = OWN_CHIP; | |
4966 | cmd->ulpLe = 1; /* Limited Edition */ | |
4967 | cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC; | |
4968 | cmdiocbq->vport = phba->pport; | |
4969 | /* We want the firmware to timeout before we do */ | |
4970 | cmd->ulpTimeout = MENLO_TIMEOUT - 5; | |
4971 | cmdiocbq->context3 = bmp; | |
4972 | cmdiocbq->context2 = rspiocbq; | |
4973 | cmdiocbq->iocb_cmpl = lpfc_bsg_menlo_cmd_cmp; | |
4974 | cmdiocbq->context1 = dd_data; | |
4975 | cmdiocbq->context2 = rspiocbq; | |
4976 | if (menlo_cmd->cmd == LPFC_BSG_VENDOR_MENLO_CMD) { | |
4977 | cmd->ulpCommand = CMD_GEN_REQUEST64_CR; | |
4978 | cmd->ulpPU = MENLO_PU; /* 3 */ | |
4979 | cmd->un.ulpWord[4] = MENLO_DID; /* 0x0000FC0E */ | |
4980 | cmd->ulpContext = MENLO_CONTEXT; /* 0 */ | |
4981 | } else { | |
4982 | cmd->ulpCommand = CMD_GEN_REQUEST64_CX; | |
4983 | cmd->ulpPU = 1; | |
4984 | cmd->un.ulpWord[4] = 0; | |
4985 | cmd->ulpContext = menlo_cmd->xri; | |
4986 | } | |
4987 | ||
4988 | dd_data->type = TYPE_MENLO; | |
4989 | dd_data->context_un.menlo.cmdiocbq = cmdiocbq; | |
4990 | dd_data->context_un.menlo.rspiocbq = rspiocbq; | |
4991 | dd_data->context_un.menlo.set_job = job; | |
4992 | dd_data->context_un.menlo.bmp = bmp; | |
4993 | ||
4994 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, | |
4995 | MENLO_TIMEOUT - 5); | |
4996 | if (rc == IOCB_SUCCESS) | |
4997 | return 0; /* done for now */ | |
4998 | ||
4999 | /* iocb failed so cleanup */ | |
5000 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, | |
5001 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
5002 | pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list, | |
5003 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); | |
5004 | ||
5005 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); | |
5006 | ||
5007 | free_rspiocbq: | |
5008 | lpfc_sli_release_iocbq(phba, rspiocbq); | |
5009 | free_cmdiocbq: | |
5010 | lpfc_sli_release_iocbq(phba, cmdiocbq); | |
5011 | free_bmp: | |
5012 | kfree(bmp); | |
5013 | free_dd: | |
5014 | kfree(dd_data); | |
5015 | no_dd_data: | |
5016 | /* make error code available to userspace */ | |
5017 | job->reply->result = rc; | |
5018 | job->dd_data = NULL; | |
5019 | return rc; | |
5020 | } | |
b6e3b9c6 | 5021 | |
3b5dd52a JS |
5022 | /** |
5023 | * lpfc_bsg_hst_vendor - process a vendor-specific fc_bsg_job | |
5024 | * @job: fc_bsg_job to handle | |
5025 | **/ | |
5026 | static int | |
5027 | lpfc_bsg_hst_vendor(struct fc_bsg_job *job) | |
5028 | { | |
5029 | int command = job->request->rqst_data.h_vendor.vendor_cmd[0]; | |
5030 | int rc; | |
5031 | ||
5032 | switch (command) { | |
5033 | case LPFC_BSG_VENDOR_SET_CT_EVENT: | |
5034 | rc = lpfc_bsg_hba_set_event(job); | |
5035 | break; | |
5036 | case LPFC_BSG_VENDOR_GET_CT_EVENT: | |
5037 | rc = lpfc_bsg_hba_get_event(job); | |
5038 | break; | |
5039 | case LPFC_BSG_VENDOR_SEND_MGMT_RESP: | |
5040 | rc = lpfc_bsg_send_mgmt_rsp(job); | |
5041 | break; | |
5042 | case LPFC_BSG_VENDOR_DIAG_MODE: | |
7ad20aa9 JS |
5043 | rc = lpfc_bsg_diag_loopback_mode(job); |
5044 | break; | |
5045 | case LPFC_BSG_VENDOR_DIAG_MODE_END: | |
5046 | rc = lpfc_sli4_bsg_diag_mode_end(job); | |
5047 | break; | |
5048 | case LPFC_BSG_VENDOR_DIAG_RUN_LOOPBACK: | |
5049 | rc = lpfc_bsg_diag_loopback_run(job); | |
3b5dd52a | 5050 | break; |
7ad20aa9 JS |
5051 | case LPFC_BSG_VENDOR_LINK_DIAG_TEST: |
5052 | rc = lpfc_sli4_bsg_link_diag_test(job); | |
3b5dd52a JS |
5053 | break; |
5054 | case LPFC_BSG_VENDOR_GET_MGMT_REV: | |
5055 | rc = lpfc_bsg_get_dfc_rev(job); | |
5056 | break; | |
5057 | case LPFC_BSG_VENDOR_MBOX: | |
5058 | rc = lpfc_bsg_mbox_cmd(job); | |
5059 | break; | |
e2aed29f JS |
5060 | case LPFC_BSG_VENDOR_MENLO_CMD: |
5061 | case LPFC_BSG_VENDOR_MENLO_DATA: | |
5062 | rc = lpfc_menlo_cmd(job); | |
5063 | break; | |
3b5dd52a JS |
5064 | default: |
5065 | rc = -EINVAL; | |
5066 | job->reply->reply_payload_rcv_len = 0; | |
5067 | /* make error code available to userspace */ | |
5068 | job->reply->result = rc; | |
5069 | break; | |
5070 | } | |
5071 | ||
5072 | return rc; | |
5073 | } | |
5074 | ||
5075 | /** | |
5076 | * lpfc_bsg_request - handle a bsg request from the FC transport | |
5077 | * @job: fc_bsg_job to handle | |
5078 | **/ | |
5079 | int | |
5080 | lpfc_bsg_request(struct fc_bsg_job *job) | |
5081 | { | |
5082 | uint32_t msgcode; | |
5083 | int rc; | |
5084 | ||
5085 | msgcode = job->request->msgcode; | |
5086 | switch (msgcode) { | |
5087 | case FC_BSG_HST_VENDOR: | |
5088 | rc = lpfc_bsg_hst_vendor(job); | |
5089 | break; | |
5090 | case FC_BSG_RPT_ELS: | |
5091 | rc = lpfc_bsg_rport_els(job); | |
5092 | break; | |
5093 | case FC_BSG_RPT_CT: | |
5094 | rc = lpfc_bsg_send_mgmt_cmd(job); | |
5095 | break; | |
5096 | default: | |
5097 | rc = -EINVAL; | |
5098 | job->reply->reply_payload_rcv_len = 0; | |
5099 | /* make error code available to userspace */ | |
5100 | job->reply->result = rc; | |
5101 | break; | |
5102 | } | |
5103 | ||
5104 | return rc; | |
5105 | } | |
5106 | ||
5107 | /** | |
5108 | * lpfc_bsg_timeout - handle timeout of a bsg request from the FC transport | |
5109 | * @job: fc_bsg_job that has timed out | |
5110 | * | |
5111 | * This function just aborts the job's IOCB. The aborted IOCB will return to | |
5112 | * the waiting function which will handle passing the error back to userspace | |
5113 | **/ | |
5114 | int | |
5115 | lpfc_bsg_timeout(struct fc_bsg_job *job) | |
5116 | { | |
5117 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
5118 | struct lpfc_hba *phba = vport->phba; | |
5119 | struct lpfc_iocbq *cmdiocb; | |
5120 | struct lpfc_bsg_event *evt; | |
5121 | struct lpfc_bsg_iocb *iocb; | |
5122 | struct lpfc_bsg_mbox *mbox; | |
e2aed29f | 5123 | struct lpfc_bsg_menlo *menlo; |
3b5dd52a JS |
5124 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; |
5125 | struct bsg_job_data *dd_data; | |
5126 | unsigned long flags; | |
5127 | ||
5128 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
5129 | dd_data = (struct bsg_job_data *)job->dd_data; | |
5130 | /* timeout and completion crossed paths if no dd_data */ | |
5131 | if (!dd_data) { | |
5132 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
5133 | return 0; | |
4cc0e56e JS |
5134 | } |
5135 | ||
5136 | switch (dd_data->type) { | |
5137 | case TYPE_IOCB: | |
5138 | iocb = &dd_data->context_un.iocb; | |
5139 | cmdiocb = iocb->cmdiocbq; | |
5140 | /* hint to completion handler that the job timed out */ | |
5141 | job->reply->result = -EAGAIN; | |
5142 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
5143 | /* this will call our completion handler */ | |
5144 | spin_lock_irq(&phba->hbalock); | |
f1c3b0fc | 5145 | lpfc_sli_issue_abort_iotag(phba, pring, cmdiocb); |
4cc0e56e JS |
5146 | spin_unlock_irq(&phba->hbalock); |
5147 | break; | |
5148 | case TYPE_EVT: | |
5149 | evt = dd_data->context_un.evt; | |
5150 | /* this event has no job anymore */ | |
5151 | evt->set_job = NULL; | |
5152 | job->dd_data = NULL; | |
5153 | job->reply->reply_payload_rcv_len = 0; | |
5154 | /* Return -EAGAIN which is our way of signallying the | |
5155 | * app to retry. | |
5156 | */ | |
5157 | job->reply->result = -EAGAIN; | |
5158 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
5159 | job->job_done(job); | |
5160 | break; | |
3b5dd52a JS |
5161 | case TYPE_MBOX: |
5162 | mbox = &dd_data->context_un.mbox; | |
5163 | /* this mbox has no job anymore */ | |
5164 | mbox->set_job = NULL; | |
5165 | job->dd_data = NULL; | |
5166 | job->reply->reply_payload_rcv_len = 0; | |
5167 | job->reply->result = -EAGAIN; | |
7a470277 | 5168 | /* the mbox completion handler can now be run */ |
3b5dd52a JS |
5169 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
5170 | job->job_done(job); | |
7ad20aa9 JS |
5171 | if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_PORT) |
5172 | phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_ABTS; | |
3b5dd52a | 5173 | break; |
e2aed29f JS |
5174 | case TYPE_MENLO: |
5175 | menlo = &dd_data->context_un.menlo; | |
5176 | cmdiocb = menlo->cmdiocbq; | |
5177 | /* hint to completion handler that the job timed out */ | |
5178 | job->reply->result = -EAGAIN; | |
5179 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
5180 | /* this will call our completion handler */ | |
5181 | spin_lock_irq(&phba->hbalock); | |
5182 | lpfc_sli_issue_abort_iotag(phba, pring, cmdiocb); | |
5183 | spin_unlock_irq(&phba->hbalock); | |
5184 | break; | |
4cc0e56e JS |
5185 | default: |
5186 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
5187 | break; | |
5188 | } | |
f1c3b0fc | 5189 | |
4cc0e56e JS |
5190 | /* scsi transport fc fc_bsg_job_timeout expects a zero return code, |
5191 | * otherwise an error message will be displayed on the console | |
5192 | * so always return success (zero) | |
5193 | */ | |
f1c3b0fc JS |
5194 | return 0; |
5195 | } |