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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. * | |
4fede78f | 4 | * Copyright (C) 2009-2010 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> |
f1c3b0fc JS |
26 | |
27 | #include <scsi/scsi.h> | |
28 | #include <scsi/scsi_host.h> | |
29 | #include <scsi/scsi_transport_fc.h> | |
30 | #include <scsi/scsi_bsg_fc.h> | |
6a9c52cf | 31 | #include <scsi/fc/fc_fs.h> |
f1c3b0fc JS |
32 | |
33 | #include "lpfc_hw4.h" | |
34 | #include "lpfc_hw.h" | |
35 | #include "lpfc_sli.h" | |
36 | #include "lpfc_sli4.h" | |
37 | #include "lpfc_nl.h" | |
4fede78f | 38 | #include "lpfc_bsg.h" |
f1c3b0fc JS |
39 | #include "lpfc_disc.h" |
40 | #include "lpfc_scsi.h" | |
41 | #include "lpfc.h" | |
42 | #include "lpfc_logmsg.h" | |
43 | #include "lpfc_crtn.h" | |
44 | #include "lpfc_vport.h" | |
45 | #include "lpfc_version.h" | |
46 | ||
4cc0e56e JS |
47 | struct lpfc_bsg_event { |
48 | struct list_head node; | |
49 | struct kref kref; | |
50 | wait_queue_head_t wq; | |
51 | ||
52 | /* Event type and waiter identifiers */ | |
53 | uint32_t type_mask; | |
54 | uint32_t req_id; | |
55 | uint32_t reg_id; | |
56 | ||
57 | /* next two flags are here for the auto-delete logic */ | |
58 | unsigned long wait_time_stamp; | |
59 | int waiting; | |
60 | ||
61 | /* seen and not seen events */ | |
62 | struct list_head events_to_get; | |
63 | struct list_head events_to_see; | |
64 | ||
65 | /* job waiting for this event to finish */ | |
66 | struct fc_bsg_job *set_job; | |
67 | }; | |
68 | ||
69 | struct lpfc_bsg_iocb { | |
70 | struct lpfc_iocbq *cmdiocbq; | |
71 | struct lpfc_iocbq *rspiocbq; | |
72 | struct lpfc_dmabuf *bmp; | |
73 | struct lpfc_nodelist *ndlp; | |
74 | ||
75 | /* job waiting for this iocb to finish */ | |
76 | struct fc_bsg_job *set_job; | |
77 | }; | |
78 | ||
3b5dd52a JS |
79 | struct lpfc_bsg_mbox { |
80 | LPFC_MBOXQ_t *pmboxq; | |
81 | MAILBOX_t *mb; | |
7a470277 JS |
82 | struct lpfc_dmabuf *rxbmp; /* for BIU diags */ |
83 | struct lpfc_dmabufext *dmp; /* for BIU diags */ | |
84 | uint8_t *ext; /* extended mailbox data */ | |
85 | uint32_t mbOffset; /* from app */ | |
86 | uint32_t inExtWLen; /* from app */ | |
c7495937 | 87 | uint32_t outExtWLen; /* from app */ |
3b5dd52a JS |
88 | |
89 | /* job waiting for this mbox command to finish */ | |
90 | struct fc_bsg_job *set_job; | |
91 | }; | |
92 | ||
e2aed29f JS |
93 | #define MENLO_DID 0x0000FC0E |
94 | ||
95 | struct lpfc_bsg_menlo { | |
96 | struct lpfc_iocbq *cmdiocbq; | |
97 | struct lpfc_iocbq *rspiocbq; | |
98 | struct lpfc_dmabuf *bmp; | |
99 | ||
100 | /* job waiting for this iocb to finish */ | |
101 | struct fc_bsg_job *set_job; | |
102 | }; | |
103 | ||
4cc0e56e JS |
104 | #define TYPE_EVT 1 |
105 | #define TYPE_IOCB 2 | |
3b5dd52a | 106 | #define TYPE_MBOX 3 |
e2aed29f | 107 | #define TYPE_MENLO 4 |
4cc0e56e JS |
108 | struct bsg_job_data { |
109 | uint32_t type; | |
110 | union { | |
111 | struct lpfc_bsg_event *evt; | |
112 | struct lpfc_bsg_iocb iocb; | |
3b5dd52a | 113 | struct lpfc_bsg_mbox mbox; |
e2aed29f | 114 | struct lpfc_bsg_menlo menlo; |
4cc0e56e JS |
115 | } context_un; |
116 | }; | |
117 | ||
118 | struct event_data { | |
119 | struct list_head node; | |
120 | uint32_t type; | |
121 | uint32_t immed_dat; | |
122 | void *data; | |
123 | uint32_t len; | |
124 | }; | |
125 | ||
3b5dd52a | 126 | #define BUF_SZ_4K 4096 |
4cc0e56e JS |
127 | #define SLI_CT_ELX_LOOPBACK 0x10 |
128 | ||
129 | enum ELX_LOOPBACK_CMD { | |
130 | ELX_LOOPBACK_XRI_SETUP, | |
131 | ELX_LOOPBACK_DATA, | |
132 | }; | |
133 | ||
3b5dd52a JS |
134 | #define ELX_LOOPBACK_HEADER_SZ \ |
135 | (size_t)(&((struct lpfc_sli_ct_request *)NULL)->un) | |
136 | ||
4cc0e56e JS |
137 | struct lpfc_dmabufext { |
138 | struct lpfc_dmabuf dma; | |
139 | uint32_t size; | |
140 | uint32_t flag; | |
141 | }; | |
142 | ||
143 | /** | |
144 | * lpfc_bsg_send_mgmt_cmd_cmp - lpfc_bsg_send_mgmt_cmd's completion handler | |
145 | * @phba: Pointer to HBA context object. | |
146 | * @cmdiocbq: Pointer to command iocb. | |
147 | * @rspiocbq: Pointer to response iocb. | |
148 | * | |
149 | * This function is the completion handler for iocbs issued using | |
150 | * lpfc_bsg_send_mgmt_cmd function. This function is called by the | |
151 | * ring event handler function without any lock held. This function | |
152 | * can be called from both worker thread context and interrupt | |
153 | * context. This function also can be called from another thread which | |
154 | * cleans up the SLI layer objects. | |
155 | * This function copies the contents of the response iocb to the | |
156 | * response iocb memory object provided by the caller of | |
157 | * lpfc_sli_issue_iocb_wait and then wakes up the thread which | |
158 | * sleeps for the iocb completion. | |
159 | **/ | |
160 | static void | |
161 | lpfc_bsg_send_mgmt_cmd_cmp(struct lpfc_hba *phba, | |
162 | struct lpfc_iocbq *cmdiocbq, | |
163 | struct lpfc_iocbq *rspiocbq) | |
164 | { | |
4cc0e56e JS |
165 | struct bsg_job_data *dd_data; |
166 | struct fc_bsg_job *job; | |
167 | IOCB_t *rsp; | |
168 | struct lpfc_dmabuf *bmp; | |
169 | struct lpfc_nodelist *ndlp; | |
170 | struct lpfc_bsg_iocb *iocb; | |
171 | unsigned long flags; | |
172 | int rc = 0; | |
173 | ||
174 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
be858b65 | 175 | dd_data = cmdiocbq->context2; |
4cc0e56e JS |
176 | if (!dd_data) { |
177 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
be858b65 | 178 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
4cc0e56e JS |
179 | return; |
180 | } | |
181 | ||
182 | iocb = &dd_data->context_un.iocb; | |
183 | job = iocb->set_job; | |
184 | job->dd_data = NULL; /* so timeout handler does not reply */ | |
185 | ||
4cc0e56e | 186 | bmp = iocb->bmp; |
4cc0e56e | 187 | rsp = &rspiocbq->iocb; |
be858b65 | 188 | ndlp = cmdiocbq->context1; |
4cc0e56e JS |
189 | |
190 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, | |
191 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
192 | pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list, | |
193 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); | |
194 | ||
195 | if (rsp->ulpStatus) { | |
196 | if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) { | |
197 | switch (rsp->un.ulpWord[4] & 0xff) { | |
198 | case IOERR_SEQUENCE_TIMEOUT: | |
199 | rc = -ETIMEDOUT; | |
200 | break; | |
201 | case IOERR_INVALID_RPI: | |
202 | rc = -EFAULT; | |
203 | break; | |
204 | default: | |
205 | rc = -EACCES; | |
206 | break; | |
207 | } | |
208 | } else | |
209 | rc = -EACCES; | |
210 | } else | |
211 | job->reply->reply_payload_rcv_len = | |
212 | rsp->un.genreq64.bdl.bdeSize; | |
213 | ||
214 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); | |
4cc0e56e JS |
215 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
216 | lpfc_nlp_put(ndlp); | |
217 | kfree(bmp); | |
218 | kfree(dd_data); | |
219 | /* make error code available to userspace */ | |
220 | job->reply->result = rc; | |
221 | /* complete the job back to userspace */ | |
222 | job->job_done(job); | |
223 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
224 | return; | |
225 | } | |
226 | ||
f1c3b0fc | 227 | /** |
4cc0e56e | 228 | * lpfc_bsg_send_mgmt_cmd - send a CT command from a bsg request |
f1c3b0fc | 229 | * @job: fc_bsg_job to handle |
3b5dd52a | 230 | **/ |
f1c3b0fc | 231 | static int |
4cc0e56e | 232 | lpfc_bsg_send_mgmt_cmd(struct fc_bsg_job *job) |
f1c3b0fc | 233 | { |
f1c3b0fc JS |
234 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; |
235 | struct lpfc_hba *phba = vport->phba; | |
236 | struct lpfc_rport_data *rdata = job->rport->dd_data; | |
237 | struct lpfc_nodelist *ndlp = rdata->pnode; | |
238 | struct ulp_bde64 *bpl = NULL; | |
239 | uint32_t timeout; | |
240 | struct lpfc_iocbq *cmdiocbq = NULL; | |
f1c3b0fc | 241 | IOCB_t *cmd; |
f1c3b0fc JS |
242 | struct lpfc_dmabuf *bmp = NULL; |
243 | int request_nseg; | |
244 | int reply_nseg; | |
245 | struct scatterlist *sgel = NULL; | |
246 | int numbde; | |
247 | dma_addr_t busaddr; | |
4cc0e56e JS |
248 | struct bsg_job_data *dd_data; |
249 | uint32_t creg_val; | |
f1c3b0fc | 250 | int rc = 0; |
d439d286 | 251 | int iocb_stat; |
f1c3b0fc JS |
252 | |
253 | /* in case no data is transferred */ | |
254 | job->reply->reply_payload_rcv_len = 0; | |
255 | ||
4cc0e56e JS |
256 | /* allocate our bsg tracking structure */ |
257 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); | |
258 | if (!dd_data) { | |
259 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
260 | "2733 Failed allocation of dd_data\n"); | |
261 | rc = -ENOMEM; | |
262 | goto no_dd_data; | |
263 | } | |
264 | ||
f1c3b0fc | 265 | if (!lpfc_nlp_get(ndlp)) { |
4cc0e56e JS |
266 | rc = -ENODEV; |
267 | goto no_ndlp; | |
268 | } | |
269 | ||
270 | bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
271 | if (!bmp) { | |
272 | rc = -ENOMEM; | |
273 | goto free_ndlp; | |
f1c3b0fc JS |
274 | } |
275 | ||
276 | if (ndlp->nlp_flag & NLP_ELS_SND_MASK) { | |
277 | rc = -ENODEV; | |
4cc0e56e | 278 | goto free_bmp; |
f1c3b0fc JS |
279 | } |
280 | ||
f1c3b0fc JS |
281 | cmdiocbq = lpfc_sli_get_iocbq(phba); |
282 | if (!cmdiocbq) { | |
283 | rc = -ENOMEM; | |
4cc0e56e | 284 | goto free_bmp; |
f1c3b0fc | 285 | } |
f1c3b0fc | 286 | |
4cc0e56e | 287 | cmd = &cmdiocbq->iocb; |
f1c3b0fc JS |
288 | bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys); |
289 | if (!bmp->virt) { | |
290 | rc = -ENOMEM; | |
be858b65 | 291 | goto free_cmdiocbq; |
f1c3b0fc | 292 | } |
f1c3b0fc JS |
293 | |
294 | INIT_LIST_HEAD(&bmp->list); | |
295 | bpl = (struct ulp_bde64 *) bmp->virt; | |
f1c3b0fc JS |
296 | request_nseg = pci_map_sg(phba->pcidev, job->request_payload.sg_list, |
297 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
298 | for_each_sg(job->request_payload.sg_list, sgel, request_nseg, numbde) { | |
299 | busaddr = sg_dma_address(sgel); | |
300 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
301 | bpl->tus.f.bdeSize = sg_dma_len(sgel); | |
302 | bpl->tus.w = cpu_to_le32(bpl->tus.w); | |
303 | bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr)); | |
304 | bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr)); | |
305 | bpl++; | |
306 | } | |
307 | ||
308 | reply_nseg = pci_map_sg(phba->pcidev, job->reply_payload.sg_list, | |
309 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); | |
310 | for_each_sg(job->reply_payload.sg_list, sgel, reply_nseg, numbde) { | |
311 | busaddr = sg_dma_address(sgel); | |
312 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; | |
313 | bpl->tus.f.bdeSize = sg_dma_len(sgel); | |
314 | bpl->tus.w = cpu_to_le32(bpl->tus.w); | |
315 | bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr)); | |
316 | bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr)); | |
317 | bpl++; | |
318 | } | |
319 | ||
320 | cmd->un.genreq64.bdl.ulpIoTag32 = 0; | |
321 | cmd->un.genreq64.bdl.addrHigh = putPaddrHigh(bmp->phys); | |
322 | cmd->un.genreq64.bdl.addrLow = putPaddrLow(bmp->phys); | |
323 | cmd->un.genreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; | |
324 | cmd->un.genreq64.bdl.bdeSize = | |
325 | (request_nseg + reply_nseg) * sizeof(struct ulp_bde64); | |
326 | cmd->ulpCommand = CMD_GEN_REQUEST64_CR; | |
327 | cmd->un.genreq64.w5.hcsw.Fctl = (SI | LA); | |
328 | cmd->un.genreq64.w5.hcsw.Dfctl = 0; | |
6a9c52cf JS |
329 | cmd->un.genreq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL; |
330 | cmd->un.genreq64.w5.hcsw.Type = FC_TYPE_CT; | |
f1c3b0fc JS |
331 | cmd->ulpBdeCount = 1; |
332 | cmd->ulpLe = 1; | |
333 | cmd->ulpClass = CLASS3; | |
334 | cmd->ulpContext = ndlp->nlp_rpi; | |
335 | cmd->ulpOwner = OWN_CHIP; | |
336 | cmdiocbq->vport = phba->pport; | |
4cc0e56e | 337 | cmdiocbq->context3 = bmp; |
f1c3b0fc | 338 | cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC; |
f1c3b0fc | 339 | timeout = phba->fc_ratov * 2; |
4cc0e56e JS |
340 | cmd->ulpTimeout = timeout; |
341 | ||
342 | cmdiocbq->iocb_cmpl = lpfc_bsg_send_mgmt_cmd_cmp; | |
be858b65 JS |
343 | cmdiocbq->context1 = ndlp; |
344 | cmdiocbq->context2 = dd_data; | |
4cc0e56e JS |
345 | dd_data->type = TYPE_IOCB; |
346 | dd_data->context_un.iocb.cmdiocbq = cmdiocbq; | |
4cc0e56e JS |
347 | dd_data->context_un.iocb.set_job = job; |
348 | dd_data->context_un.iocb.bmp = bmp; | |
4cc0e56e JS |
349 | |
350 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { | |
9940b97b JS |
351 | if (lpfc_readl(phba->HCregaddr, &creg_val)) { |
352 | rc = -EIO ; | |
353 | goto free_cmdiocbq; | |
354 | } | |
4cc0e56e JS |
355 | creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); |
356 | writel(creg_val, phba->HCregaddr); | |
357 | readl(phba->HCregaddr); /* flush */ | |
f1c3b0fc JS |
358 | } |
359 | ||
d439d286 JS |
360 | iocb_stat = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, 0); |
361 | if (iocb_stat == IOCB_SUCCESS) | |
4cc0e56e | 362 | return 0; /* done for now */ |
d439d286 JS |
363 | else if (iocb_stat == IOCB_BUSY) |
364 | rc = -EAGAIN; | |
2a9bf3d0 | 365 | else |
d439d286 | 366 | rc = -EIO; |
2a9bf3d0 | 367 | |
f1c3b0fc | 368 | |
4cc0e56e JS |
369 | /* iocb failed so cleanup */ |
370 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, | |
371 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
372 | pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list, | |
373 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); | |
f1c3b0fc | 374 | |
f1c3b0fc | 375 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); |
4cc0e56e | 376 | |
f1c3b0fc JS |
377 | free_cmdiocbq: |
378 | lpfc_sli_release_iocbq(phba, cmdiocbq); | |
4cc0e56e JS |
379 | free_bmp: |
380 | kfree(bmp); | |
381 | free_ndlp: | |
f1c3b0fc | 382 | lpfc_nlp_put(ndlp); |
4cc0e56e JS |
383 | no_ndlp: |
384 | kfree(dd_data); | |
385 | no_dd_data: | |
386 | /* make error code available to userspace */ | |
387 | job->reply->result = rc; | |
388 | job->dd_data = NULL; | |
389 | return rc; | |
390 | } | |
391 | ||
392 | /** | |
393 | * lpfc_bsg_rport_els_cmp - lpfc_bsg_rport_els's completion handler | |
394 | * @phba: Pointer to HBA context object. | |
395 | * @cmdiocbq: Pointer to command iocb. | |
396 | * @rspiocbq: Pointer to response iocb. | |
397 | * | |
398 | * This function is the completion handler for iocbs issued using | |
399 | * lpfc_bsg_rport_els_cmp function. This function is called by the | |
400 | * ring event handler function without any lock held. This function | |
401 | * can be called from both worker thread context and interrupt | |
402 | * context. This function also can be called from other thread which | |
403 | * cleans up the SLI layer objects. | |
3b5dd52a | 404 | * This function copies the contents of the response iocb to the |
4cc0e56e JS |
405 | * response iocb memory object provided by the caller of |
406 | * lpfc_sli_issue_iocb_wait and then wakes up the thread which | |
407 | * sleeps for the iocb completion. | |
408 | **/ | |
409 | static void | |
410 | lpfc_bsg_rport_els_cmp(struct lpfc_hba *phba, | |
411 | struct lpfc_iocbq *cmdiocbq, | |
412 | struct lpfc_iocbq *rspiocbq) | |
413 | { | |
414 | struct bsg_job_data *dd_data; | |
415 | struct fc_bsg_job *job; | |
416 | IOCB_t *rsp; | |
417 | struct lpfc_nodelist *ndlp; | |
418 | struct lpfc_dmabuf *pbuflist = NULL; | |
419 | struct fc_bsg_ctels_reply *els_reply; | |
420 | uint8_t *rjt_data; | |
421 | unsigned long flags; | |
422 | int rc = 0; | |
423 | ||
424 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
425 | dd_data = cmdiocbq->context1; | |
426 | /* normal completion and timeout crossed paths, already done */ | |
427 | if (!dd_data) { | |
67221a42 | 428 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
4cc0e56e JS |
429 | return; |
430 | } | |
431 | ||
432 | cmdiocbq->iocb_flag |= LPFC_IO_WAKE; | |
433 | if (cmdiocbq->context2 && rspiocbq) | |
434 | memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb, | |
435 | &rspiocbq->iocb, sizeof(IOCB_t)); | |
436 | ||
437 | job = dd_data->context_un.iocb.set_job; | |
438 | cmdiocbq = dd_data->context_un.iocb.cmdiocbq; | |
439 | rspiocbq = dd_data->context_un.iocb.rspiocbq; | |
440 | rsp = &rspiocbq->iocb; | |
441 | ndlp = dd_data->context_un.iocb.ndlp; | |
442 | ||
443 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, | |
444 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
445 | pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list, | |
446 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); | |
447 | ||
448 | if (job->reply->result == -EAGAIN) | |
449 | rc = -EAGAIN; | |
450 | else if (rsp->ulpStatus == IOSTAT_SUCCESS) | |
451 | job->reply->reply_payload_rcv_len = | |
452 | rsp->un.elsreq64.bdl.bdeSize; | |
453 | else if (rsp->ulpStatus == IOSTAT_LS_RJT) { | |
454 | job->reply->reply_payload_rcv_len = | |
455 | sizeof(struct fc_bsg_ctels_reply); | |
456 | /* LS_RJT data returned in word 4 */ | |
457 | rjt_data = (uint8_t *)&rsp->un.ulpWord[4]; | |
458 | els_reply = &job->reply->reply_data.ctels_reply; | |
459 | els_reply->status = FC_CTELS_STATUS_REJECT; | |
460 | els_reply->rjt_data.action = rjt_data[3]; | |
461 | els_reply->rjt_data.reason_code = rjt_data[2]; | |
462 | els_reply->rjt_data.reason_explanation = rjt_data[1]; | |
463 | els_reply->rjt_data.vendor_unique = rjt_data[0]; | |
464 | } else | |
465 | rc = -EIO; | |
f1c3b0fc | 466 | |
4cc0e56e JS |
467 | pbuflist = (struct lpfc_dmabuf *) cmdiocbq->context3; |
468 | lpfc_mbuf_free(phba, pbuflist->virt, pbuflist->phys); | |
469 | lpfc_sli_release_iocbq(phba, rspiocbq); | |
470 | lpfc_sli_release_iocbq(phba, cmdiocbq); | |
471 | lpfc_nlp_put(ndlp); | |
472 | kfree(dd_data); | |
f1c3b0fc JS |
473 | /* make error code available to userspace */ |
474 | job->reply->result = rc; | |
4cc0e56e | 475 | job->dd_data = NULL; |
f1c3b0fc JS |
476 | /* complete the job back to userspace */ |
477 | job->job_done(job); | |
4cc0e56e JS |
478 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
479 | return; | |
f1c3b0fc JS |
480 | } |
481 | ||
482 | /** | |
483 | * lpfc_bsg_rport_els - send an ELS command from a bsg request | |
484 | * @job: fc_bsg_job to handle | |
3b5dd52a | 485 | **/ |
f1c3b0fc JS |
486 | static int |
487 | lpfc_bsg_rport_els(struct fc_bsg_job *job) | |
488 | { | |
489 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
490 | struct lpfc_hba *phba = vport->phba; | |
491 | struct lpfc_rport_data *rdata = job->rport->dd_data; | |
492 | struct lpfc_nodelist *ndlp = rdata->pnode; | |
f1c3b0fc JS |
493 | uint32_t elscmd; |
494 | uint32_t cmdsize; | |
495 | uint32_t rspsize; | |
496 | struct lpfc_iocbq *rspiocbq; | |
497 | struct lpfc_iocbq *cmdiocbq; | |
498 | IOCB_t *rsp; | |
499 | uint16_t rpi = 0; | |
500 | struct lpfc_dmabuf *pcmd; | |
501 | struct lpfc_dmabuf *prsp; | |
502 | struct lpfc_dmabuf *pbuflist = NULL; | |
503 | struct ulp_bde64 *bpl; | |
f1c3b0fc JS |
504 | int request_nseg; |
505 | int reply_nseg; | |
506 | struct scatterlist *sgel = NULL; | |
507 | int numbde; | |
508 | dma_addr_t busaddr; | |
4cc0e56e JS |
509 | struct bsg_job_data *dd_data; |
510 | uint32_t creg_val; | |
f1c3b0fc JS |
511 | int rc = 0; |
512 | ||
513 | /* in case no data is transferred */ | |
514 | job->reply->reply_payload_rcv_len = 0; | |
515 | ||
4cc0e56e JS |
516 | /* allocate our bsg tracking structure */ |
517 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); | |
518 | if (!dd_data) { | |
519 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
520 | "2735 Failed allocation of dd_data\n"); | |
521 | rc = -ENOMEM; | |
522 | goto no_dd_data; | |
523 | } | |
524 | ||
f1c3b0fc JS |
525 | if (!lpfc_nlp_get(ndlp)) { |
526 | rc = -ENODEV; | |
4cc0e56e | 527 | goto free_dd_data; |
f1c3b0fc JS |
528 | } |
529 | ||
530 | elscmd = job->request->rqst_data.r_els.els_code; | |
531 | cmdsize = job->request_payload.payload_len; | |
532 | rspsize = job->reply_payload.payload_len; | |
533 | rspiocbq = lpfc_sli_get_iocbq(phba); | |
534 | if (!rspiocbq) { | |
535 | lpfc_nlp_put(ndlp); | |
536 | rc = -ENOMEM; | |
4cc0e56e | 537 | goto free_dd_data; |
f1c3b0fc JS |
538 | } |
539 | ||
540 | rsp = &rspiocbq->iocb; | |
541 | rpi = ndlp->nlp_rpi; | |
542 | ||
4cc0e56e | 543 | cmdiocbq = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, |
f1c3b0fc | 544 | ndlp->nlp_DID, elscmd); |
f1c3b0fc | 545 | if (!cmdiocbq) { |
4cc0e56e JS |
546 | rc = -EIO; |
547 | goto free_rspiocbq; | |
f1c3b0fc JS |
548 | } |
549 | ||
4cc0e56e | 550 | /* prep els iocb set context1 to the ndlp, context2 to the command |
3b5dd52a JS |
551 | * dmabuf, context3 holds the data dmabuf |
552 | */ | |
f1c3b0fc JS |
553 | pcmd = (struct lpfc_dmabuf *) cmdiocbq->context2; |
554 | prsp = (struct lpfc_dmabuf *) pcmd->list.next; | |
f1c3b0fc JS |
555 | lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys); |
556 | kfree(pcmd); | |
557 | lpfc_mbuf_free(phba, prsp->virt, prsp->phys); | |
558 | kfree(prsp); | |
559 | cmdiocbq->context2 = NULL; | |
560 | ||
561 | pbuflist = (struct lpfc_dmabuf *) cmdiocbq->context3; | |
562 | bpl = (struct ulp_bde64 *) pbuflist->virt; | |
563 | ||
564 | request_nseg = pci_map_sg(phba->pcidev, job->request_payload.sg_list, | |
565 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
f1c3b0fc JS |
566 | for_each_sg(job->request_payload.sg_list, sgel, request_nseg, numbde) { |
567 | busaddr = sg_dma_address(sgel); | |
568 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
569 | bpl->tus.f.bdeSize = sg_dma_len(sgel); | |
570 | bpl->tus.w = cpu_to_le32(bpl->tus.w); | |
571 | bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr)); | |
572 | bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr)); | |
573 | bpl++; | |
574 | } | |
575 | ||
576 | reply_nseg = pci_map_sg(phba->pcidev, job->reply_payload.sg_list, | |
577 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); | |
578 | for_each_sg(job->reply_payload.sg_list, sgel, reply_nseg, numbde) { | |
579 | busaddr = sg_dma_address(sgel); | |
580 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; | |
581 | bpl->tus.f.bdeSize = sg_dma_len(sgel); | |
582 | bpl->tus.w = cpu_to_le32(bpl->tus.w); | |
583 | bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr)); | |
584 | bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr)); | |
585 | bpl++; | |
586 | } | |
f1c3b0fc JS |
587 | cmdiocbq->iocb.un.elsreq64.bdl.bdeSize = |
588 | (request_nseg + reply_nseg) * sizeof(struct ulp_bde64); | |
589 | cmdiocbq->iocb.ulpContext = rpi; | |
590 | cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC; | |
591 | cmdiocbq->context1 = NULL; | |
592 | cmdiocbq->context2 = NULL; | |
593 | ||
4cc0e56e JS |
594 | cmdiocbq->iocb_cmpl = lpfc_bsg_rport_els_cmp; |
595 | cmdiocbq->context1 = dd_data; | |
596 | cmdiocbq->context2 = rspiocbq; | |
597 | dd_data->type = TYPE_IOCB; | |
598 | dd_data->context_un.iocb.cmdiocbq = cmdiocbq; | |
599 | dd_data->context_un.iocb.rspiocbq = rspiocbq; | |
600 | dd_data->context_un.iocb.set_job = job; | |
601 | dd_data->context_un.iocb.bmp = NULL;; | |
602 | dd_data->context_un.iocb.ndlp = ndlp; | |
603 | ||
604 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { | |
9940b97b JS |
605 | if (lpfc_readl(phba->HCregaddr, &creg_val)) { |
606 | rc = -EIO; | |
607 | goto linkdown_err; | |
608 | } | |
4cc0e56e JS |
609 | creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); |
610 | writel(creg_val, phba->HCregaddr); | |
611 | readl(phba->HCregaddr); /* flush */ | |
612 | } | |
613 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, 0); | |
f1c3b0fc | 614 | lpfc_nlp_put(ndlp); |
4cc0e56e JS |
615 | if (rc == IOCB_SUCCESS) |
616 | return 0; /* done for now */ | |
2a9bf3d0 | 617 | else if (rc == IOCB_BUSY) |
d439d286 | 618 | rc = -EAGAIN; |
2a9bf3d0 | 619 | else |
d439d286 | 620 | rc = -EIO; |
f1c3b0fc | 621 | |
9940b97b | 622 | linkdown_err: |
4cc0e56e JS |
623 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, |
624 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
625 | pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list, | |
626 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); | |
f1c3b0fc | 627 | |
4cc0e56e | 628 | lpfc_mbuf_free(phba, pbuflist->virt, pbuflist->phys); |
f1c3b0fc | 629 | |
4cc0e56e | 630 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
f1c3b0fc | 631 | |
4cc0e56e JS |
632 | free_rspiocbq: |
633 | lpfc_sli_release_iocbq(phba, rspiocbq); | |
f1c3b0fc | 634 | |
4cc0e56e JS |
635 | free_dd_data: |
636 | kfree(dd_data); | |
f1c3b0fc | 637 | |
4cc0e56e JS |
638 | no_dd_data: |
639 | /* make error code available to userspace */ | |
640 | job->reply->result = rc; | |
641 | job->dd_data = NULL; | |
642 | return rc; | |
f1c3b0fc JS |
643 | } |
644 | ||
3b5dd52a JS |
645 | /** |
646 | * lpfc_bsg_event_free - frees an allocated event structure | |
647 | * @kref: Pointer to a kref. | |
648 | * | |
649 | * Called from kref_put. Back cast the kref into an event structure address. | |
650 | * Free any events to get, delete associated nodes, free any events to see, | |
651 | * free any data then free the event itself. | |
652 | **/ | |
f1c3b0fc | 653 | static void |
4cc0e56e | 654 | lpfc_bsg_event_free(struct kref *kref) |
f1c3b0fc | 655 | { |
4cc0e56e JS |
656 | struct lpfc_bsg_event *evt = container_of(kref, struct lpfc_bsg_event, |
657 | kref); | |
f1c3b0fc JS |
658 | struct event_data *ed; |
659 | ||
660 | list_del(&evt->node); | |
661 | ||
662 | while (!list_empty(&evt->events_to_get)) { | |
663 | ed = list_entry(evt->events_to_get.next, typeof(*ed), node); | |
664 | list_del(&ed->node); | |
665 | kfree(ed->data); | |
666 | kfree(ed); | |
667 | } | |
668 | ||
669 | while (!list_empty(&evt->events_to_see)) { | |
670 | ed = list_entry(evt->events_to_see.next, typeof(*ed), node); | |
671 | list_del(&ed->node); | |
672 | kfree(ed->data); | |
673 | kfree(ed); | |
674 | } | |
675 | ||
676 | kfree(evt); | |
677 | } | |
678 | ||
3b5dd52a JS |
679 | /** |
680 | * lpfc_bsg_event_ref - increments the kref for an event | |
681 | * @evt: Pointer to an event structure. | |
682 | **/ | |
f1c3b0fc | 683 | static inline void |
4cc0e56e | 684 | lpfc_bsg_event_ref(struct lpfc_bsg_event *evt) |
f1c3b0fc | 685 | { |
4cc0e56e | 686 | kref_get(&evt->kref); |
f1c3b0fc JS |
687 | } |
688 | ||
3b5dd52a JS |
689 | /** |
690 | * lpfc_bsg_event_unref - Uses kref_put to free an event structure | |
691 | * @evt: Pointer to an event structure. | |
692 | **/ | |
f1c3b0fc | 693 | static inline void |
4cc0e56e | 694 | lpfc_bsg_event_unref(struct lpfc_bsg_event *evt) |
f1c3b0fc | 695 | { |
4cc0e56e | 696 | kref_put(&evt->kref, lpfc_bsg_event_free); |
f1c3b0fc JS |
697 | } |
698 | ||
3b5dd52a JS |
699 | /** |
700 | * lpfc_bsg_event_new - allocate and initialize a event structure | |
701 | * @ev_mask: Mask of events. | |
702 | * @ev_reg_id: Event reg id. | |
703 | * @ev_req_id: Event request id. | |
704 | **/ | |
4cc0e56e JS |
705 | static struct lpfc_bsg_event * |
706 | lpfc_bsg_event_new(uint32_t ev_mask, int ev_reg_id, uint32_t ev_req_id) | |
707 | { | |
708 | struct lpfc_bsg_event *evt = kzalloc(sizeof(*evt), GFP_KERNEL); | |
f1c3b0fc | 709 | |
4cc0e56e JS |
710 | if (!evt) |
711 | return NULL; | |
712 | ||
713 | INIT_LIST_HEAD(&evt->events_to_get); | |
714 | INIT_LIST_HEAD(&evt->events_to_see); | |
715 | evt->type_mask = ev_mask; | |
716 | evt->req_id = ev_req_id; | |
717 | evt->reg_id = ev_reg_id; | |
718 | evt->wait_time_stamp = jiffies; | |
719 | init_waitqueue_head(&evt->wq); | |
720 | kref_init(&evt->kref); | |
721 | return evt; | |
722 | } | |
723 | ||
3b5dd52a JS |
724 | /** |
725 | * diag_cmd_data_free - Frees an lpfc dma buffer extension | |
726 | * @phba: Pointer to HBA context object. | |
727 | * @mlist: Pointer to an lpfc dma buffer extension. | |
728 | **/ | |
4cc0e56e | 729 | static int |
3b5dd52a | 730 | diag_cmd_data_free(struct lpfc_hba *phba, struct lpfc_dmabufext *mlist) |
4cc0e56e JS |
731 | { |
732 | struct lpfc_dmabufext *mlast; | |
733 | struct pci_dev *pcidev; | |
734 | struct list_head head, *curr, *next; | |
735 | ||
736 | if ((!mlist) || (!lpfc_is_link_up(phba) && | |
737 | (phba->link_flag & LS_LOOPBACK_MODE))) { | |
738 | return 0; | |
739 | } | |
740 | ||
741 | pcidev = phba->pcidev; | |
742 | list_add_tail(&head, &mlist->dma.list); | |
743 | ||
744 | list_for_each_safe(curr, next, &head) { | |
745 | mlast = list_entry(curr, struct lpfc_dmabufext , dma.list); | |
746 | if (mlast->dma.virt) | |
747 | dma_free_coherent(&pcidev->dev, | |
748 | mlast->size, | |
749 | mlast->dma.virt, | |
750 | mlast->dma.phys); | |
751 | kfree(mlast); | |
752 | } | |
753 | return 0; | |
754 | } | |
f1c3b0fc JS |
755 | |
756 | /** | |
757 | * lpfc_bsg_ct_unsol_event - process an unsolicited CT command | |
758 | * @phba: | |
759 | * @pring: | |
760 | * @piocbq: | |
761 | * | |
762 | * This function is called when an unsolicited CT command is received. It | |
4cc0e56e | 763 | * forwards the event to any processes registered to receive CT events. |
3b5dd52a | 764 | **/ |
4fede78f | 765 | int |
f1c3b0fc JS |
766 | lpfc_bsg_ct_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
767 | struct lpfc_iocbq *piocbq) | |
768 | { | |
769 | uint32_t evt_req_id = 0; | |
770 | uint32_t cmd; | |
771 | uint32_t len; | |
772 | struct lpfc_dmabuf *dmabuf = NULL; | |
4cc0e56e | 773 | struct lpfc_bsg_event *evt; |
f1c3b0fc JS |
774 | struct event_data *evt_dat = NULL; |
775 | struct lpfc_iocbq *iocbq; | |
776 | size_t offset = 0; | |
777 | struct list_head head; | |
778 | struct ulp_bde64 *bde; | |
779 | dma_addr_t dma_addr; | |
780 | int i; | |
781 | struct lpfc_dmabuf *bdeBuf1 = piocbq->context2; | |
782 | struct lpfc_dmabuf *bdeBuf2 = piocbq->context3; | |
783 | struct lpfc_hbq_entry *hbqe; | |
784 | struct lpfc_sli_ct_request *ct_req; | |
4cc0e56e | 785 | struct fc_bsg_job *job = NULL; |
4fede78f | 786 | unsigned long flags; |
4cc0e56e | 787 | int size = 0; |
f1c3b0fc JS |
788 | |
789 | INIT_LIST_HEAD(&head); | |
790 | list_add_tail(&head, &piocbq->list); | |
791 | ||
792 | if (piocbq->iocb.ulpBdeCount == 0 || | |
793 | piocbq->iocb.un.cont64[0].tus.f.bdeSize == 0) | |
794 | goto error_ct_unsol_exit; | |
795 | ||
4cc0e56e JS |
796 | if (phba->link_state == LPFC_HBA_ERROR || |
797 | (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE))) | |
798 | goto error_ct_unsol_exit; | |
799 | ||
f1c3b0fc JS |
800 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) |
801 | dmabuf = bdeBuf1; | |
802 | else { | |
803 | dma_addr = getPaddr(piocbq->iocb.un.cont64[0].addrHigh, | |
804 | piocbq->iocb.un.cont64[0].addrLow); | |
805 | dmabuf = lpfc_sli_ringpostbuf_get(phba, pring, dma_addr); | |
806 | } | |
4cc0e56e JS |
807 | if (dmabuf == NULL) |
808 | goto error_ct_unsol_exit; | |
f1c3b0fc JS |
809 | ct_req = (struct lpfc_sli_ct_request *)dmabuf->virt; |
810 | evt_req_id = ct_req->FsType; | |
811 | cmd = ct_req->CommandResponse.bits.CmdRsp; | |
812 | len = ct_req->CommandResponse.bits.Size; | |
813 | if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) | |
814 | lpfc_sli_ringpostbuf_put(phba, pring, dmabuf); | |
815 | ||
4fede78f | 816 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
f1c3b0fc | 817 | list_for_each_entry(evt, &phba->ct_ev_waiters, node) { |
4cc0e56e JS |
818 | if (!(evt->type_mask & FC_REG_CT_EVENT) || |
819 | evt->req_id != evt_req_id) | |
f1c3b0fc JS |
820 | continue; |
821 | ||
4cc0e56e JS |
822 | lpfc_bsg_event_ref(evt); |
823 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
f1c3b0fc | 824 | evt_dat = kzalloc(sizeof(*evt_dat), GFP_KERNEL); |
4cc0e56e JS |
825 | if (evt_dat == NULL) { |
826 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
827 | lpfc_bsg_event_unref(evt); | |
f1c3b0fc JS |
828 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
829 | "2614 Memory allocation failed for " | |
830 | "CT event\n"); | |
831 | break; | |
832 | } | |
833 | ||
f1c3b0fc JS |
834 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
835 | /* take accumulated byte count from the last iocbq */ | |
836 | iocbq = list_entry(head.prev, typeof(*iocbq), list); | |
837 | evt_dat->len = iocbq->iocb.unsli3.rcvsli3.acc_len; | |
838 | } else { | |
839 | list_for_each_entry(iocbq, &head, list) { | |
840 | for (i = 0; i < iocbq->iocb.ulpBdeCount; i++) | |
841 | evt_dat->len += | |
842 | iocbq->iocb.un.cont64[i].tus.f.bdeSize; | |
843 | } | |
844 | } | |
845 | ||
846 | evt_dat->data = kzalloc(evt_dat->len, GFP_KERNEL); | |
4cc0e56e | 847 | if (evt_dat->data == NULL) { |
f1c3b0fc JS |
848 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
849 | "2615 Memory allocation failed for " | |
850 | "CT event data, size %d\n", | |
851 | evt_dat->len); | |
852 | kfree(evt_dat); | |
4fede78f | 853 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
4cc0e56e | 854 | lpfc_bsg_event_unref(evt); |
4fede78f | 855 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
f1c3b0fc JS |
856 | goto error_ct_unsol_exit; |
857 | } | |
858 | ||
859 | list_for_each_entry(iocbq, &head, list) { | |
4cc0e56e | 860 | size = 0; |
f1c3b0fc JS |
861 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
862 | bdeBuf1 = iocbq->context2; | |
863 | bdeBuf2 = iocbq->context3; | |
864 | } | |
865 | for (i = 0; i < iocbq->iocb.ulpBdeCount; i++) { | |
f1c3b0fc JS |
866 | if (phba->sli3_options & |
867 | LPFC_SLI3_HBQ_ENABLED) { | |
868 | if (i == 0) { | |
869 | hbqe = (struct lpfc_hbq_entry *) | |
870 | &iocbq->iocb.un.ulpWord[0]; | |
871 | size = hbqe->bde.tus.f.bdeSize; | |
872 | dmabuf = bdeBuf1; | |
873 | } else if (i == 1) { | |
874 | hbqe = (struct lpfc_hbq_entry *) | |
875 | &iocbq->iocb.unsli3. | |
876 | sli3Words[4]; | |
877 | size = hbqe->bde.tus.f.bdeSize; | |
878 | dmabuf = bdeBuf2; | |
879 | } | |
880 | if ((offset + size) > evt_dat->len) | |
881 | size = evt_dat->len - offset; | |
882 | } else { | |
883 | size = iocbq->iocb.un.cont64[i]. | |
884 | tus.f.bdeSize; | |
885 | bde = &iocbq->iocb.un.cont64[i]; | |
886 | dma_addr = getPaddr(bde->addrHigh, | |
887 | bde->addrLow); | |
888 | dmabuf = lpfc_sli_ringpostbuf_get(phba, | |
889 | pring, dma_addr); | |
890 | } | |
891 | if (!dmabuf) { | |
892 | lpfc_printf_log(phba, KERN_ERR, | |
893 | LOG_LIBDFC, "2616 No dmabuf " | |
894 | "found for iocbq 0x%p\n", | |
895 | iocbq); | |
896 | kfree(evt_dat->data); | |
897 | kfree(evt_dat); | |
4fede78f JS |
898 | spin_lock_irqsave(&phba->ct_ev_lock, |
899 | flags); | |
4cc0e56e | 900 | lpfc_bsg_event_unref(evt); |
4fede78f JS |
901 | spin_unlock_irqrestore( |
902 | &phba->ct_ev_lock, flags); | |
f1c3b0fc JS |
903 | goto error_ct_unsol_exit; |
904 | } | |
905 | memcpy((char *)(evt_dat->data) + offset, | |
906 | dmabuf->virt, size); | |
907 | offset += size; | |
908 | if (evt_req_id != SLI_CT_ELX_LOOPBACK && | |
909 | !(phba->sli3_options & | |
910 | LPFC_SLI3_HBQ_ENABLED)) { | |
911 | lpfc_sli_ringpostbuf_put(phba, pring, | |
912 | dmabuf); | |
913 | } else { | |
914 | switch (cmd) { | |
4cc0e56e | 915 | case ELX_LOOPBACK_DATA: |
3b5dd52a | 916 | diag_cmd_data_free(phba, |
4cc0e56e JS |
917 | (struct lpfc_dmabufext *) |
918 | dmabuf); | |
919 | break; | |
f1c3b0fc | 920 | case ELX_LOOPBACK_XRI_SETUP: |
4cc0e56e JS |
921 | if ((phba->sli_rev == |
922 | LPFC_SLI_REV2) || | |
923 | (phba->sli3_options & | |
924 | LPFC_SLI3_HBQ_ENABLED | |
925 | )) { | |
926 | lpfc_in_buf_free(phba, | |
927 | dmabuf); | |
928 | } else { | |
f1c3b0fc JS |
929 | lpfc_post_buffer(phba, |
930 | pring, | |
931 | 1); | |
4cc0e56e | 932 | } |
f1c3b0fc JS |
933 | break; |
934 | default: | |
935 | if (!(phba->sli3_options & | |
936 | LPFC_SLI3_HBQ_ENABLED)) | |
937 | lpfc_post_buffer(phba, | |
938 | pring, | |
939 | 1); | |
940 | break; | |
941 | } | |
942 | } | |
943 | } | |
944 | } | |
945 | ||
4fede78f | 946 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
f1c3b0fc JS |
947 | if (phba->sli_rev == LPFC_SLI_REV4) { |
948 | evt_dat->immed_dat = phba->ctx_idx; | |
949 | phba->ctx_idx = (phba->ctx_idx + 1) % 64; | |
589a52d6 JS |
950 | /* Provide warning for over-run of the ct_ctx array */ |
951 | if (phba->ct_ctx[evt_dat->immed_dat].flags & | |
952 | UNSOL_VALID) | |
953 | lpfc_printf_log(phba, KERN_WARNING, LOG_ELS, | |
954 | "2717 CT context array entry " | |
955 | "[%d] over-run: oxid:x%x, " | |
956 | "sid:x%x\n", phba->ctx_idx, | |
957 | phba->ct_ctx[ | |
958 | evt_dat->immed_dat].oxid, | |
959 | phba->ct_ctx[ | |
960 | evt_dat->immed_dat].SID); | |
f1c3b0fc JS |
961 | phba->ct_ctx[evt_dat->immed_dat].oxid = |
962 | piocbq->iocb.ulpContext; | |
963 | phba->ct_ctx[evt_dat->immed_dat].SID = | |
964 | piocbq->iocb.un.rcvels.remoteID; | |
589a52d6 | 965 | phba->ct_ctx[evt_dat->immed_dat].flags = UNSOL_VALID; |
f1c3b0fc JS |
966 | } else |
967 | evt_dat->immed_dat = piocbq->iocb.ulpContext; | |
968 | ||
969 | evt_dat->type = FC_REG_CT_EVENT; | |
970 | list_add(&evt_dat->node, &evt->events_to_see); | |
4cc0e56e JS |
971 | if (evt_req_id == SLI_CT_ELX_LOOPBACK) { |
972 | wake_up_interruptible(&evt->wq); | |
973 | lpfc_bsg_event_unref(evt); | |
f1c3b0fc | 974 | break; |
4cc0e56e JS |
975 | } |
976 | ||
977 | list_move(evt->events_to_see.prev, &evt->events_to_get); | |
978 | lpfc_bsg_event_unref(evt); | |
979 | ||
980 | job = evt->set_job; | |
981 | evt->set_job = NULL; | |
982 | if (job) { | |
983 | job->reply->reply_payload_rcv_len = size; | |
984 | /* make error code available to userspace */ | |
985 | job->reply->result = 0; | |
986 | job->dd_data = NULL; | |
987 | /* complete the job back to userspace */ | |
988 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
989 | job->job_done(job); | |
990 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
991 | } | |
f1c3b0fc | 992 | } |
4fede78f | 993 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
f1c3b0fc JS |
994 | |
995 | error_ct_unsol_exit: | |
996 | if (!list_empty(&head)) | |
997 | list_del(&head); | |
4cc0e56e JS |
998 | if (evt_req_id == SLI_CT_ELX_LOOPBACK) |
999 | return 0; | |
4fede78f | 1000 | return 1; |
f1c3b0fc JS |
1001 | } |
1002 | ||
1003 | /** | |
4cc0e56e | 1004 | * lpfc_bsg_hba_set_event - process a SET_EVENT bsg vendor command |
f1c3b0fc | 1005 | * @job: SET_EVENT fc_bsg_job |
3b5dd52a | 1006 | **/ |
f1c3b0fc | 1007 | static int |
4cc0e56e | 1008 | lpfc_bsg_hba_set_event(struct fc_bsg_job *job) |
f1c3b0fc JS |
1009 | { |
1010 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
1011 | struct lpfc_hba *phba = vport->phba; | |
1012 | struct set_ct_event *event_req; | |
4cc0e56e | 1013 | struct lpfc_bsg_event *evt; |
f1c3b0fc | 1014 | int rc = 0; |
4cc0e56e JS |
1015 | struct bsg_job_data *dd_data = NULL; |
1016 | uint32_t ev_mask; | |
1017 | unsigned long flags; | |
f1c3b0fc JS |
1018 | |
1019 | if (job->request_len < | |
1020 | sizeof(struct fc_bsg_request) + sizeof(struct set_ct_event)) { | |
1021 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1022 | "2612 Received SET_CT_EVENT below minimum " | |
1023 | "size\n"); | |
4cc0e56e JS |
1024 | rc = -EINVAL; |
1025 | goto job_error; | |
1026 | } | |
1027 | ||
1028 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); | |
1029 | if (dd_data == NULL) { | |
1030 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1031 | "2734 Failed allocation of dd_data\n"); | |
1032 | rc = -ENOMEM; | |
1033 | goto job_error; | |
f1c3b0fc JS |
1034 | } |
1035 | ||
1036 | event_req = (struct set_ct_event *) | |
1037 | job->request->rqst_data.h_vendor.vendor_cmd; | |
4cc0e56e JS |
1038 | ev_mask = ((uint32_t)(unsigned long)event_req->type_mask & |
1039 | FC_REG_EVENT_MASK); | |
4fede78f | 1040 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
f1c3b0fc JS |
1041 | list_for_each_entry(evt, &phba->ct_ev_waiters, node) { |
1042 | if (evt->reg_id == event_req->ev_reg_id) { | |
4cc0e56e | 1043 | lpfc_bsg_event_ref(evt); |
f1c3b0fc JS |
1044 | evt->wait_time_stamp = jiffies; |
1045 | break; | |
1046 | } | |
1047 | } | |
4fede78f | 1048 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
f1c3b0fc JS |
1049 | |
1050 | if (&evt->node == &phba->ct_ev_waiters) { | |
1051 | /* no event waiting struct yet - first call */ | |
4cc0e56e | 1052 | evt = lpfc_bsg_event_new(ev_mask, event_req->ev_reg_id, |
f1c3b0fc JS |
1053 | event_req->ev_req_id); |
1054 | if (!evt) { | |
1055 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1056 | "2617 Failed allocation of event " | |
1057 | "waiter\n"); | |
4cc0e56e JS |
1058 | rc = -ENOMEM; |
1059 | goto job_error; | |
f1c3b0fc JS |
1060 | } |
1061 | ||
4fede78f | 1062 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
f1c3b0fc | 1063 | list_add(&evt->node, &phba->ct_ev_waiters); |
4cc0e56e JS |
1064 | lpfc_bsg_event_ref(evt); |
1065 | evt->wait_time_stamp = jiffies; | |
4fede78f | 1066 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
f1c3b0fc JS |
1067 | } |
1068 | ||
4fede78f | 1069 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
4cc0e56e JS |
1070 | evt->waiting = 1; |
1071 | dd_data->type = TYPE_EVT; | |
1072 | dd_data->context_un.evt = evt; | |
1073 | evt->set_job = job; /* for unsolicited command */ | |
1074 | job->dd_data = dd_data; /* for fc transport timeout callback*/ | |
4fede78f | 1075 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
4cc0e56e | 1076 | return 0; /* call job done later */ |
f1c3b0fc | 1077 | |
4cc0e56e JS |
1078 | job_error: |
1079 | if (dd_data != NULL) | |
1080 | kfree(dd_data); | |
f1c3b0fc | 1081 | |
4cc0e56e JS |
1082 | job->dd_data = NULL; |
1083 | return rc; | |
f1c3b0fc JS |
1084 | } |
1085 | ||
1086 | /** | |
4cc0e56e | 1087 | * lpfc_bsg_hba_get_event - process a GET_EVENT bsg vendor command |
f1c3b0fc | 1088 | * @job: GET_EVENT fc_bsg_job |
3b5dd52a | 1089 | **/ |
f1c3b0fc | 1090 | static int |
4cc0e56e | 1091 | lpfc_bsg_hba_get_event(struct fc_bsg_job *job) |
f1c3b0fc JS |
1092 | { |
1093 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
1094 | struct lpfc_hba *phba = vport->phba; | |
1095 | struct get_ct_event *event_req; | |
1096 | struct get_ct_event_reply *event_reply; | |
4cc0e56e | 1097 | struct lpfc_bsg_event *evt; |
f1c3b0fc | 1098 | struct event_data *evt_dat = NULL; |
4fede78f | 1099 | unsigned long flags; |
4cc0e56e | 1100 | uint32_t rc = 0; |
f1c3b0fc JS |
1101 | |
1102 | if (job->request_len < | |
1103 | sizeof(struct fc_bsg_request) + sizeof(struct get_ct_event)) { | |
1104 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1105 | "2613 Received GET_CT_EVENT request below " | |
1106 | "minimum size\n"); | |
4cc0e56e JS |
1107 | rc = -EINVAL; |
1108 | goto job_error; | |
f1c3b0fc JS |
1109 | } |
1110 | ||
1111 | event_req = (struct get_ct_event *) | |
1112 | job->request->rqst_data.h_vendor.vendor_cmd; | |
1113 | ||
1114 | event_reply = (struct get_ct_event_reply *) | |
1115 | job->reply->reply_data.vendor_reply.vendor_rsp; | |
4fede78f | 1116 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
f1c3b0fc JS |
1117 | list_for_each_entry(evt, &phba->ct_ev_waiters, node) { |
1118 | if (evt->reg_id == event_req->ev_reg_id) { | |
1119 | if (list_empty(&evt->events_to_get)) | |
1120 | break; | |
4cc0e56e | 1121 | lpfc_bsg_event_ref(evt); |
f1c3b0fc JS |
1122 | evt->wait_time_stamp = jiffies; |
1123 | evt_dat = list_entry(evt->events_to_get.prev, | |
1124 | struct event_data, node); | |
1125 | list_del(&evt_dat->node); | |
1126 | break; | |
1127 | } | |
1128 | } | |
4fede78f | 1129 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
f1c3b0fc | 1130 | |
4cc0e56e JS |
1131 | /* The app may continue to ask for event data until it gets |
1132 | * an error indicating that there isn't anymore | |
1133 | */ | |
1134 | if (evt_dat == NULL) { | |
f1c3b0fc JS |
1135 | job->reply->reply_payload_rcv_len = 0; |
1136 | rc = -ENOENT; | |
4cc0e56e | 1137 | goto job_error; |
f1c3b0fc JS |
1138 | } |
1139 | ||
4cc0e56e JS |
1140 | if (evt_dat->len > job->request_payload.payload_len) { |
1141 | evt_dat->len = job->request_payload.payload_len; | |
1142 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1143 | "2618 Truncated event data at %d " | |
1144 | "bytes\n", | |
1145 | job->request_payload.payload_len); | |
f1c3b0fc JS |
1146 | } |
1147 | ||
4cc0e56e | 1148 | event_reply->type = evt_dat->type; |
f1c3b0fc | 1149 | event_reply->immed_data = evt_dat->immed_dat; |
f1c3b0fc JS |
1150 | if (evt_dat->len > 0) |
1151 | job->reply->reply_payload_rcv_len = | |
4cc0e56e JS |
1152 | sg_copy_from_buffer(job->request_payload.sg_list, |
1153 | job->request_payload.sg_cnt, | |
f1c3b0fc JS |
1154 | evt_dat->data, evt_dat->len); |
1155 | else | |
1156 | job->reply->reply_payload_rcv_len = 0; | |
f1c3b0fc | 1157 | |
4cc0e56e | 1158 | if (evt_dat) { |
f1c3b0fc | 1159 | kfree(evt_dat->data); |
4cc0e56e JS |
1160 | kfree(evt_dat); |
1161 | } | |
1162 | ||
4fede78f | 1163 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
4cc0e56e | 1164 | lpfc_bsg_event_unref(evt); |
4fede78f | 1165 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
4cc0e56e JS |
1166 | job->dd_data = NULL; |
1167 | job->reply->result = 0; | |
f1c3b0fc | 1168 | job->job_done(job); |
4cc0e56e | 1169 | return 0; |
f1c3b0fc | 1170 | |
4cc0e56e JS |
1171 | job_error: |
1172 | job->dd_data = NULL; | |
1173 | job->reply->result = rc; | |
f1c3b0fc JS |
1174 | return rc; |
1175 | } | |
1176 | ||
1177 | /** | |
3b5dd52a JS |
1178 | * lpfc_issue_ct_rsp_cmp - lpfc_issue_ct_rsp's completion handler |
1179 | * @phba: Pointer to HBA context object. | |
1180 | * @cmdiocbq: Pointer to command iocb. | |
1181 | * @rspiocbq: Pointer to response iocb. | |
1182 | * | |
1183 | * This function is the completion handler for iocbs issued using | |
1184 | * lpfc_issue_ct_rsp_cmp function. This function is called by the | |
1185 | * ring event handler function without any lock held. This function | |
1186 | * can be called from both worker thread context and interrupt | |
1187 | * context. This function also can be called from other thread which | |
1188 | * cleans up the SLI layer objects. | |
1189 | * This function copy the contents of the response iocb to the | |
1190 | * response iocb memory object provided by the caller of | |
1191 | * lpfc_sli_issue_iocb_wait and then wakes up the thread which | |
1192 | * sleeps for the iocb completion. | |
1193 | **/ | |
1194 | static void | |
1195 | lpfc_issue_ct_rsp_cmp(struct lpfc_hba *phba, | |
1196 | struct lpfc_iocbq *cmdiocbq, | |
1197 | struct lpfc_iocbq *rspiocbq) | |
1198 | { | |
1199 | struct bsg_job_data *dd_data; | |
1200 | struct fc_bsg_job *job; | |
1201 | IOCB_t *rsp; | |
1202 | struct lpfc_dmabuf *bmp; | |
1203 | struct lpfc_nodelist *ndlp; | |
1204 | unsigned long flags; | |
1205 | int rc = 0; | |
1206 | ||
1207 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
be858b65 | 1208 | dd_data = cmdiocbq->context2; |
3b5dd52a JS |
1209 | /* normal completion and timeout crossed paths, already done */ |
1210 | if (!dd_data) { | |
67221a42 | 1211 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
3b5dd52a JS |
1212 | return; |
1213 | } | |
1214 | ||
1215 | job = dd_data->context_un.iocb.set_job; | |
1216 | bmp = dd_data->context_un.iocb.bmp; | |
1217 | rsp = &rspiocbq->iocb; | |
1218 | ndlp = dd_data->context_un.iocb.ndlp; | |
1219 | ||
1220 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, | |
1221 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
1222 | ||
1223 | if (rsp->ulpStatus) { | |
1224 | if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) { | |
1225 | switch (rsp->un.ulpWord[4] & 0xff) { | |
1226 | case IOERR_SEQUENCE_TIMEOUT: | |
1227 | rc = -ETIMEDOUT; | |
1228 | break; | |
1229 | case IOERR_INVALID_RPI: | |
1230 | rc = -EFAULT; | |
1231 | break; | |
1232 | default: | |
1233 | rc = -EACCES; | |
1234 | break; | |
1235 | } | |
1236 | } else | |
1237 | rc = -EACCES; | |
1238 | } else | |
1239 | job->reply->reply_payload_rcv_len = | |
1240 | rsp->un.genreq64.bdl.bdeSize; | |
1241 | ||
1242 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); | |
1243 | lpfc_sli_release_iocbq(phba, cmdiocbq); | |
1244 | lpfc_nlp_put(ndlp); | |
1245 | kfree(bmp); | |
1246 | kfree(dd_data); | |
1247 | /* make error code available to userspace */ | |
1248 | job->reply->result = rc; | |
1249 | job->dd_data = NULL; | |
1250 | /* complete the job back to userspace */ | |
1251 | job->job_done(job); | |
1252 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
1253 | return; | |
1254 | } | |
1255 | ||
1256 | /** | |
1257 | * lpfc_issue_ct_rsp - issue a ct response | |
1258 | * @phba: Pointer to HBA context object. | |
1259 | * @job: Pointer to the job object. | |
1260 | * @tag: tag index value into the ports context exchange array. | |
1261 | * @bmp: Pointer to a dma buffer descriptor. | |
1262 | * @num_entry: Number of enties in the bde. | |
1263 | **/ | |
f1c3b0fc | 1264 | static int |
3b5dd52a JS |
1265 | lpfc_issue_ct_rsp(struct lpfc_hba *phba, struct fc_bsg_job *job, uint32_t tag, |
1266 | struct lpfc_dmabuf *bmp, int num_entry) | |
f1c3b0fc | 1267 | { |
3b5dd52a JS |
1268 | IOCB_t *icmd; |
1269 | struct lpfc_iocbq *ctiocb = NULL; | |
1270 | int rc = 0; | |
1271 | struct lpfc_nodelist *ndlp = NULL; | |
1272 | struct bsg_job_data *dd_data; | |
1273 | uint32_t creg_val; | |
f1c3b0fc | 1274 | |
3b5dd52a JS |
1275 | /* allocate our bsg tracking structure */ |
1276 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); | |
1277 | if (!dd_data) { | |
1278 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1279 | "2736 Failed allocation of dd_data\n"); | |
1280 | rc = -ENOMEM; | |
1281 | goto no_dd_data; | |
1282 | } | |
f1c3b0fc | 1283 | |
3b5dd52a JS |
1284 | /* Allocate buffer for command iocb */ |
1285 | ctiocb = lpfc_sli_get_iocbq(phba); | |
1286 | if (!ctiocb) { | |
d439d286 | 1287 | rc = -ENOMEM; |
3b5dd52a JS |
1288 | goto no_ctiocb; |
1289 | } | |
1290 | ||
1291 | icmd = &ctiocb->iocb; | |
1292 | icmd->un.xseq64.bdl.ulpIoTag32 = 0; | |
1293 | icmd->un.xseq64.bdl.addrHigh = putPaddrHigh(bmp->phys); | |
1294 | icmd->un.xseq64.bdl.addrLow = putPaddrLow(bmp->phys); | |
1295 | icmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; | |
1296 | icmd->un.xseq64.bdl.bdeSize = (num_entry * sizeof(struct ulp_bde64)); | |
1297 | icmd->un.xseq64.w5.hcsw.Fctl = (LS | LA); | |
1298 | icmd->un.xseq64.w5.hcsw.Dfctl = 0; | |
1299 | icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_SOL_CTL; | |
1300 | icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT; | |
1301 | ||
1302 | /* Fill in rest of iocb */ | |
1303 | icmd->ulpCommand = CMD_XMIT_SEQUENCE64_CX; | |
1304 | icmd->ulpBdeCount = 1; | |
1305 | icmd->ulpLe = 1; | |
1306 | icmd->ulpClass = CLASS3; | |
1307 | if (phba->sli_rev == LPFC_SLI_REV4) { | |
1308 | /* Do not issue unsol response if oxid not marked as valid */ | |
1309 | if (!(phba->ct_ctx[tag].flags & UNSOL_VALID)) { | |
1310 | rc = IOCB_ERROR; | |
1311 | goto issue_ct_rsp_exit; | |
1312 | } | |
1313 | icmd->ulpContext = phba->ct_ctx[tag].oxid; | |
1314 | ndlp = lpfc_findnode_did(phba->pport, phba->ct_ctx[tag].SID); | |
1315 | if (!ndlp) { | |
1316 | lpfc_printf_log(phba, KERN_WARNING, LOG_ELS, | |
1317 | "2721 ndlp null for oxid %x SID %x\n", | |
1318 | icmd->ulpContext, | |
1319 | phba->ct_ctx[tag].SID); | |
1320 | rc = IOCB_ERROR; | |
1321 | goto issue_ct_rsp_exit; | |
1322 | } | |
589a52d6 JS |
1323 | |
1324 | /* Check if the ndlp is active */ | |
1325 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { | |
1326 | rc = -IOCB_ERROR; | |
1327 | goto issue_ct_rsp_exit; | |
1328 | } | |
1329 | ||
1330 | /* get a refernece count so the ndlp doesn't go away while | |
1331 | * we respond | |
1332 | */ | |
1333 | if (!lpfc_nlp_get(ndlp)) { | |
1334 | rc = -IOCB_ERROR; | |
1335 | goto issue_ct_rsp_exit; | |
1336 | } | |
1337 | ||
3b5dd52a JS |
1338 | icmd->un.ulpWord[3] = ndlp->nlp_rpi; |
1339 | /* The exchange is done, mark the entry as invalid */ | |
1340 | phba->ct_ctx[tag].flags &= ~UNSOL_VALID; | |
1341 | } else | |
1342 | icmd->ulpContext = (ushort) tag; | |
1343 | ||
1344 | icmd->ulpTimeout = phba->fc_ratov * 2; | |
1345 | ||
1346 | /* Xmit CT response on exchange <xid> */ | |
1347 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS, | |
1348 | "2722 Xmit CT response on exchange x%x Data: x%x x%x\n", | |
1349 | icmd->ulpContext, icmd->ulpIoTag, phba->link_state); | |
1350 | ||
1351 | ctiocb->iocb_cmpl = NULL; | |
1352 | ctiocb->iocb_flag |= LPFC_IO_LIBDFC; | |
1353 | ctiocb->vport = phba->pport; | |
1354 | ctiocb->context3 = bmp; | |
1355 | ||
1356 | ctiocb->iocb_cmpl = lpfc_issue_ct_rsp_cmp; | |
be858b65 JS |
1357 | ctiocb->context2 = dd_data; |
1358 | ctiocb->context1 = ndlp; | |
3b5dd52a JS |
1359 | dd_data->type = TYPE_IOCB; |
1360 | dd_data->context_un.iocb.cmdiocbq = ctiocb; | |
1361 | dd_data->context_un.iocb.rspiocbq = NULL; | |
1362 | dd_data->context_un.iocb.set_job = job; | |
1363 | dd_data->context_un.iocb.bmp = bmp; | |
1364 | dd_data->context_un.iocb.ndlp = ndlp; | |
1365 | ||
1366 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { | |
9940b97b JS |
1367 | if (lpfc_readl(phba->HCregaddr, &creg_val)) { |
1368 | rc = -IOCB_ERROR; | |
1369 | goto issue_ct_rsp_exit; | |
1370 | } | |
3b5dd52a JS |
1371 | creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); |
1372 | writel(creg_val, phba->HCregaddr); | |
1373 | readl(phba->HCregaddr); /* flush */ | |
f1c3b0fc | 1374 | } |
4cc0e56e | 1375 | |
3b5dd52a JS |
1376 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0); |
1377 | ||
1378 | if (rc == IOCB_SUCCESS) | |
1379 | return 0; /* done for now */ | |
1380 | ||
1381 | issue_ct_rsp_exit: | |
1382 | lpfc_sli_release_iocbq(phba, ctiocb); | |
1383 | no_ctiocb: | |
1384 | kfree(dd_data); | |
1385 | no_dd_data: | |
4cc0e56e | 1386 | return rc; |
f1c3b0fc JS |
1387 | } |
1388 | ||
1389 | /** | |
3b5dd52a JS |
1390 | * lpfc_bsg_send_mgmt_rsp - process a SEND_MGMT_RESP bsg vendor command |
1391 | * @job: SEND_MGMT_RESP fc_bsg_job | |
1392 | **/ | |
1393 | static int | |
1394 | lpfc_bsg_send_mgmt_rsp(struct fc_bsg_job *job) | |
f1c3b0fc | 1395 | { |
3b5dd52a JS |
1396 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; |
1397 | struct lpfc_hba *phba = vport->phba; | |
1398 | struct send_mgmt_resp *mgmt_resp = (struct send_mgmt_resp *) | |
1399 | job->request->rqst_data.h_vendor.vendor_cmd; | |
1400 | struct ulp_bde64 *bpl; | |
1401 | struct lpfc_dmabuf *bmp = NULL; | |
1402 | struct scatterlist *sgel = NULL; | |
1403 | int request_nseg; | |
1404 | int numbde; | |
1405 | dma_addr_t busaddr; | |
1406 | uint32_t tag = mgmt_resp->tag; | |
1407 | unsigned long reqbfrcnt = | |
1408 | (unsigned long)job->request_payload.payload_len; | |
1409 | int rc = 0; | |
f1c3b0fc | 1410 | |
3b5dd52a JS |
1411 | /* in case no data is transferred */ |
1412 | job->reply->reply_payload_rcv_len = 0; | |
1413 | ||
1414 | if (!reqbfrcnt || (reqbfrcnt > (80 * BUF_SZ_4K))) { | |
1415 | rc = -ERANGE; | |
1416 | goto send_mgmt_rsp_exit; | |
1417 | } | |
1418 | ||
1419 | bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
1420 | if (!bmp) { | |
1421 | rc = -ENOMEM; | |
1422 | goto send_mgmt_rsp_exit; | |
1423 | } | |
1424 | ||
1425 | bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys); | |
1426 | if (!bmp->virt) { | |
1427 | rc = -ENOMEM; | |
1428 | goto send_mgmt_rsp_free_bmp; | |
1429 | } | |
1430 | ||
1431 | INIT_LIST_HEAD(&bmp->list); | |
1432 | bpl = (struct ulp_bde64 *) bmp->virt; | |
1433 | request_nseg = pci_map_sg(phba->pcidev, job->request_payload.sg_list, | |
1434 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
1435 | for_each_sg(job->request_payload.sg_list, sgel, request_nseg, numbde) { | |
1436 | busaddr = sg_dma_address(sgel); | |
1437 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
1438 | bpl->tus.f.bdeSize = sg_dma_len(sgel); | |
1439 | bpl->tus.w = cpu_to_le32(bpl->tus.w); | |
1440 | bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr)); | |
1441 | bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr)); | |
1442 | bpl++; | |
f1c3b0fc JS |
1443 | } |
1444 | ||
3b5dd52a JS |
1445 | rc = lpfc_issue_ct_rsp(phba, job, tag, bmp, request_nseg); |
1446 | ||
1447 | if (rc == IOCB_SUCCESS) | |
1448 | return 0; /* done for now */ | |
1449 | ||
1450 | /* TBD need to handle a timeout */ | |
1451 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, | |
1452 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
1453 | rc = -EACCES; | |
1454 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); | |
1455 | ||
1456 | send_mgmt_rsp_free_bmp: | |
1457 | kfree(bmp); | |
1458 | send_mgmt_rsp_exit: | |
1459 | /* make error code available to userspace */ | |
1460 | job->reply->result = rc; | |
1461 | job->dd_data = NULL; | |
f1c3b0fc JS |
1462 | return rc; |
1463 | } | |
1464 | ||
1465 | /** | |
3b5dd52a JS |
1466 | * lpfc_bsg_diag_mode - process a LPFC_BSG_VENDOR_DIAG_MODE bsg vendor command |
1467 | * @job: LPFC_BSG_VENDOR_DIAG_MODE | |
f1c3b0fc | 1468 | * |
3b5dd52a JS |
1469 | * This function is responsible for placing a port into diagnostic loopback |
1470 | * mode in order to perform a diagnostic loopback test. | |
1471 | * All new scsi requests are blocked, a small delay is used to allow the | |
1472 | * scsi requests to complete then the link is brought down. If the link is | |
1473 | * is placed in loopback mode then scsi requests are again allowed | |
1474 | * so the scsi mid-layer doesn't give up on the port. | |
1475 | * All of this is done in-line. | |
f1c3b0fc | 1476 | */ |
3b5dd52a JS |
1477 | static int |
1478 | lpfc_bsg_diag_mode(struct fc_bsg_job *job) | |
f1c3b0fc | 1479 | { |
3b5dd52a | 1480 | struct Scsi_Host *shost = job->shost; |
f1c3b0fc JS |
1481 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; |
1482 | struct lpfc_hba *phba = vport->phba; | |
3b5dd52a JS |
1483 | struct diag_mode_set *loopback_mode; |
1484 | struct lpfc_sli *psli = &phba->sli; | |
1485 | struct lpfc_sli_ring *pring = &psli->ring[LPFC_FCP_RING]; | |
1486 | uint32_t link_flags; | |
1487 | uint32_t timeout; | |
1488 | struct lpfc_vport **vports; | |
1489 | LPFC_MBOXQ_t *pmboxq; | |
1490 | int mbxstatus; | |
1491 | int i = 0; | |
1492 | int rc = 0; | |
f1c3b0fc | 1493 | |
3b5dd52a JS |
1494 | /* no data to return just the return code */ |
1495 | job->reply->reply_payload_rcv_len = 0; | |
1496 | ||
1497 | if (job->request_len < | |
1498 | sizeof(struct fc_bsg_request) + sizeof(struct diag_mode_set)) { | |
1499 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1500 | "2738 Received DIAG MODE request below minimum " | |
1501 | "size\n"); | |
1502 | rc = -EINVAL; | |
1503 | goto job_error; | |
1504 | } | |
1505 | ||
1506 | loopback_mode = (struct diag_mode_set *) | |
1507 | job->request->rqst_data.h_vendor.vendor_cmd; | |
1508 | link_flags = loopback_mode->type; | |
515e0aa2 | 1509 | timeout = loopback_mode->timeout * 100; |
3b5dd52a JS |
1510 | |
1511 | if ((phba->link_state == LPFC_HBA_ERROR) || | |
1512 | (psli->sli_flag & LPFC_BLOCK_MGMT_IO) || | |
1513 | (!(psli->sli_flag & LPFC_SLI_ACTIVE))) { | |
1514 | rc = -EACCES; | |
1515 | goto job_error; | |
1516 | } | |
1517 | ||
1518 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
1519 | if (!pmboxq) { | |
1520 | rc = -ENOMEM; | |
1521 | goto job_error; | |
1522 | } | |
1523 | ||
1524 | vports = lpfc_create_vport_work_array(phba); | |
1525 | if (vports) { | |
1526 | for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) { | |
1527 | shost = lpfc_shost_from_vport(vports[i]); | |
1528 | scsi_block_requests(shost); | |
1529 | } | |
1530 | ||
1531 | lpfc_destroy_vport_work_array(phba, vports); | |
1532 | } else { | |
1533 | shost = lpfc_shost_from_vport(phba->pport); | |
1534 | scsi_block_requests(shost); | |
1535 | } | |
1536 | ||
1537 | while (pring->txcmplq_cnt) { | |
1538 | if (i++ > 500) /* wait up to 5 seconds */ | |
1539 | break; | |
1540 | ||
1541 | msleep(10); | |
1542 | } | |
1543 | ||
1544 | memset((void *)pmboxq, 0, sizeof(LPFC_MBOXQ_t)); | |
1545 | pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK; | |
1546 | pmboxq->u.mb.mbxOwner = OWN_HOST; | |
1547 | ||
1548 | mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO); | |
1549 | ||
1550 | if ((mbxstatus == MBX_SUCCESS) && (pmboxq->u.mb.mbxStatus == 0)) { | |
1551 | /* wait for link down before proceeding */ | |
1552 | i = 0; | |
1553 | while (phba->link_state != LPFC_LINK_DOWN) { | |
1554 | if (i++ > timeout) { | |
1555 | rc = -ETIMEDOUT; | |
1556 | goto loopback_mode_exit; | |
1557 | } | |
1558 | ||
1559 | msleep(10); | |
1560 | } | |
1561 | ||
1562 | memset((void *)pmboxq, 0, sizeof(LPFC_MBOXQ_t)); | |
1563 | if (link_flags == INTERNAL_LOOP_BACK) | |
1564 | pmboxq->u.mb.un.varInitLnk.link_flags = FLAGS_LOCAL_LB; | |
1565 | else | |
1566 | pmboxq->u.mb.un.varInitLnk.link_flags = | |
1567 | FLAGS_TOPOLOGY_MODE_LOOP; | |
1568 | ||
1569 | pmboxq->u.mb.mbxCommand = MBX_INIT_LINK; | |
1570 | pmboxq->u.mb.mbxOwner = OWN_HOST; | |
1571 | ||
1572 | mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, | |
1573 | LPFC_MBOX_TMO); | |
1574 | ||
1575 | if ((mbxstatus != MBX_SUCCESS) || (pmboxq->u.mb.mbxStatus)) | |
1576 | rc = -ENODEV; | |
1577 | else { | |
1578 | phba->link_flag |= LS_LOOPBACK_MODE; | |
1579 | /* wait for the link attention interrupt */ | |
1580 | msleep(100); | |
1581 | ||
1582 | i = 0; | |
1583 | while (phba->link_state != LPFC_HBA_READY) { | |
1584 | if (i++ > timeout) { | |
1585 | rc = -ETIMEDOUT; | |
1586 | break; | |
1587 | } | |
1588 | ||
1589 | msleep(10); | |
1590 | } | |
1591 | } | |
1592 | ||
1593 | } else | |
1594 | rc = -ENODEV; | |
1595 | ||
1596 | loopback_mode_exit: | |
1597 | vports = lpfc_create_vport_work_array(phba); | |
1598 | if (vports) { | |
1599 | for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) { | |
1600 | shost = lpfc_shost_from_vport(vports[i]); | |
1601 | scsi_unblock_requests(shost); | |
1602 | } | |
1603 | lpfc_destroy_vport_work_array(phba, vports); | |
1604 | } else { | |
1605 | shost = lpfc_shost_from_vport(phba->pport); | |
1606 | scsi_unblock_requests(shost); | |
1607 | } | |
1608 | ||
1609 | /* | |
1610 | * Let SLI layer release mboxq if mbox command completed after timeout. | |
1611 | */ | |
1612 | if (mbxstatus != MBX_TIMEOUT) | |
1613 | mempool_free(pmboxq, phba->mbox_mem_pool); | |
1614 | ||
1615 | job_error: | |
1616 | /* make error code available to userspace */ | |
1617 | job->reply->result = rc; | |
1618 | /* complete the job back to userspace if no error */ | |
1619 | if (rc == 0) | |
1620 | job->job_done(job); | |
1621 | return rc; | |
1622 | } | |
1623 | ||
1624 | /** | |
1625 | * lpfcdiag_loop_self_reg - obtains a remote port login id | |
1626 | * @phba: Pointer to HBA context object | |
1627 | * @rpi: Pointer to a remote port login id | |
1628 | * | |
1629 | * This function obtains a remote port login id so the diag loopback test | |
1630 | * can send and receive its own unsolicited CT command. | |
1631 | **/ | |
4042629e | 1632 | static int lpfcdiag_loop_self_reg(struct lpfc_hba *phba, uint16_t *rpi) |
3b5dd52a JS |
1633 | { |
1634 | LPFC_MBOXQ_t *mbox; | |
1635 | struct lpfc_dmabuf *dmabuff; | |
1636 | int status; | |
1637 | ||
1638 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
1639 | if (!mbox) | |
d439d286 | 1640 | return -ENOMEM; |
3b5dd52a | 1641 | |
4042629e JS |
1642 | if (phba->sli_rev == LPFC_SLI_REV4) |
1643 | *rpi = lpfc_sli4_alloc_rpi(phba); | |
3b5dd52a | 1644 | status = lpfc_reg_rpi(phba, 0, phba->pport->fc_myDID, |
4042629e | 1645 | (uint8_t *)&phba->pport->fc_sparam, mbox, *rpi); |
3b5dd52a JS |
1646 | if (status) { |
1647 | mempool_free(mbox, phba->mbox_mem_pool); | |
4042629e JS |
1648 | if (phba->sli_rev == LPFC_SLI_REV4) |
1649 | lpfc_sli4_free_rpi(phba, *rpi); | |
d439d286 | 1650 | return -ENOMEM; |
3b5dd52a JS |
1651 | } |
1652 | ||
1653 | dmabuff = (struct lpfc_dmabuf *) mbox->context1; | |
1654 | mbox->context1 = NULL; | |
d439d286 | 1655 | mbox->context2 = NULL; |
3b5dd52a JS |
1656 | status = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); |
1657 | ||
1658 | if ((status != MBX_SUCCESS) || (mbox->u.mb.mbxStatus)) { | |
1659 | lpfc_mbuf_free(phba, dmabuff->virt, dmabuff->phys); | |
1660 | kfree(dmabuff); | |
1661 | if (status != MBX_TIMEOUT) | |
1662 | mempool_free(mbox, phba->mbox_mem_pool); | |
4042629e JS |
1663 | if (phba->sli_rev == LPFC_SLI_REV4) |
1664 | lpfc_sli4_free_rpi(phba, *rpi); | |
d439d286 | 1665 | return -ENODEV; |
3b5dd52a JS |
1666 | } |
1667 | ||
1668 | *rpi = mbox->u.mb.un.varWords[0]; | |
1669 | ||
1670 | lpfc_mbuf_free(phba, dmabuff->virt, dmabuff->phys); | |
1671 | kfree(dmabuff); | |
1672 | mempool_free(mbox, phba->mbox_mem_pool); | |
1673 | return 0; | |
1674 | } | |
1675 | ||
1676 | /** | |
1677 | * lpfcdiag_loop_self_unreg - unregs from the rpi | |
1678 | * @phba: Pointer to HBA context object | |
1679 | * @rpi: Remote port login id | |
1680 | * | |
1681 | * This function unregisters the rpi obtained in lpfcdiag_loop_self_reg | |
1682 | **/ | |
1683 | static int lpfcdiag_loop_self_unreg(struct lpfc_hba *phba, uint16_t rpi) | |
1684 | { | |
1685 | LPFC_MBOXQ_t *mbox; | |
1686 | int status; | |
1687 | ||
1688 | /* Allocate mboxq structure */ | |
1689 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
1690 | if (mbox == NULL) | |
d439d286 | 1691 | return -ENOMEM; |
3b5dd52a JS |
1692 | |
1693 | lpfc_unreg_login(phba, 0, rpi, mbox); | |
1694 | status = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); | |
1695 | ||
1696 | if ((status != MBX_SUCCESS) || (mbox->u.mb.mbxStatus)) { | |
1697 | if (status != MBX_TIMEOUT) | |
1698 | mempool_free(mbox, phba->mbox_mem_pool); | |
d439d286 | 1699 | return -EIO; |
3b5dd52a | 1700 | } |
3b5dd52a | 1701 | mempool_free(mbox, phba->mbox_mem_pool); |
4042629e JS |
1702 | if (phba->sli_rev == LPFC_SLI_REV4) |
1703 | lpfc_sli4_free_rpi(phba, rpi); | |
3b5dd52a JS |
1704 | return 0; |
1705 | } | |
1706 | ||
1707 | /** | |
1708 | * lpfcdiag_loop_get_xri - obtains the transmit and receive ids | |
1709 | * @phba: Pointer to HBA context object | |
1710 | * @rpi: Remote port login id | |
1711 | * @txxri: Pointer to transmit exchange id | |
1712 | * @rxxri: Pointer to response exchabge id | |
1713 | * | |
1714 | * This function obtains the transmit and receive ids required to send | |
1715 | * an unsolicited ct command with a payload. A special lpfc FsType and CmdRsp | |
1716 | * flags are used to the unsolicted response handler is able to process | |
1717 | * the ct command sent on the same port. | |
1718 | **/ | |
1719 | static int lpfcdiag_loop_get_xri(struct lpfc_hba *phba, uint16_t rpi, | |
1720 | uint16_t *txxri, uint16_t * rxxri) | |
1721 | { | |
1722 | struct lpfc_bsg_event *evt; | |
1723 | struct lpfc_iocbq *cmdiocbq, *rspiocbq; | |
1724 | IOCB_t *cmd, *rsp; | |
1725 | struct lpfc_dmabuf *dmabuf; | |
1726 | struct ulp_bde64 *bpl = NULL; | |
1727 | struct lpfc_sli_ct_request *ctreq = NULL; | |
1728 | int ret_val = 0; | |
d439d286 | 1729 | int time_left; |
515e0aa2 | 1730 | int iocb_stat = 0; |
3b5dd52a JS |
1731 | unsigned long flags; |
1732 | ||
1733 | *txxri = 0; | |
1734 | *rxxri = 0; | |
1735 | evt = lpfc_bsg_event_new(FC_REG_CT_EVENT, current->pid, | |
1736 | SLI_CT_ELX_LOOPBACK); | |
1737 | if (!evt) | |
d439d286 | 1738 | return -ENOMEM; |
3b5dd52a JS |
1739 | |
1740 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
1741 | list_add(&evt->node, &phba->ct_ev_waiters); | |
1742 | lpfc_bsg_event_ref(evt); | |
1743 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
1744 | ||
1745 | cmdiocbq = lpfc_sli_get_iocbq(phba); | |
1746 | rspiocbq = lpfc_sli_get_iocbq(phba); | |
1747 | ||
1748 | dmabuf = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
1749 | if (dmabuf) { | |
1750 | dmabuf->virt = lpfc_mbuf_alloc(phba, 0, &dmabuf->phys); | |
c7495937 JS |
1751 | if (dmabuf->virt) { |
1752 | INIT_LIST_HEAD(&dmabuf->list); | |
1753 | bpl = (struct ulp_bde64 *) dmabuf->virt; | |
1754 | memset(bpl, 0, sizeof(*bpl)); | |
1755 | ctreq = (struct lpfc_sli_ct_request *)(bpl + 1); | |
1756 | bpl->addrHigh = | |
1757 | le32_to_cpu(putPaddrHigh(dmabuf->phys + | |
1758 | sizeof(*bpl))); | |
1759 | bpl->addrLow = | |
1760 | le32_to_cpu(putPaddrLow(dmabuf->phys + | |
1761 | sizeof(*bpl))); | |
1762 | bpl->tus.f.bdeFlags = 0; | |
1763 | bpl->tus.f.bdeSize = ELX_LOOPBACK_HEADER_SZ; | |
1764 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
1765 | } | |
3b5dd52a JS |
1766 | } |
1767 | ||
1768 | if (cmdiocbq == NULL || rspiocbq == NULL || | |
c7495937 JS |
1769 | dmabuf == NULL || bpl == NULL || ctreq == NULL || |
1770 | dmabuf->virt == NULL) { | |
d439d286 | 1771 | ret_val = -ENOMEM; |
3b5dd52a JS |
1772 | goto err_get_xri_exit; |
1773 | } | |
1774 | ||
1775 | cmd = &cmdiocbq->iocb; | |
1776 | rsp = &rspiocbq->iocb; | |
1777 | ||
1778 | memset(ctreq, 0, ELX_LOOPBACK_HEADER_SZ); | |
1779 | ||
1780 | ctreq->RevisionId.bits.Revision = SLI_CT_REVISION; | |
1781 | ctreq->RevisionId.bits.InId = 0; | |
1782 | ctreq->FsType = SLI_CT_ELX_LOOPBACK; | |
1783 | ctreq->FsSubType = 0; | |
1784 | ctreq->CommandResponse.bits.CmdRsp = ELX_LOOPBACK_XRI_SETUP; | |
1785 | ctreq->CommandResponse.bits.Size = 0; | |
1786 | ||
1787 | ||
1788 | cmd->un.xseq64.bdl.addrHigh = putPaddrHigh(dmabuf->phys); | |
1789 | cmd->un.xseq64.bdl.addrLow = putPaddrLow(dmabuf->phys); | |
1790 | cmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; | |
1791 | cmd->un.xseq64.bdl.bdeSize = sizeof(*bpl); | |
1792 | ||
1793 | cmd->un.xseq64.w5.hcsw.Fctl = LA; | |
1794 | cmd->un.xseq64.w5.hcsw.Dfctl = 0; | |
1795 | cmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL; | |
1796 | cmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT; | |
1797 | ||
1798 | cmd->ulpCommand = CMD_XMIT_SEQUENCE64_CR; | |
1799 | cmd->ulpBdeCount = 1; | |
1800 | cmd->ulpLe = 1; | |
1801 | cmd->ulpClass = CLASS3; | |
1802 | cmd->ulpContext = rpi; | |
1803 | ||
1804 | cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC; | |
1805 | cmdiocbq->vport = phba->pport; | |
1806 | ||
d439d286 | 1807 | iocb_stat = lpfc_sli_issue_iocb_wait(phba, LPFC_ELS_RING, cmdiocbq, |
3b5dd52a JS |
1808 | rspiocbq, |
1809 | (phba->fc_ratov * 2) | |
1810 | + LPFC_DRVR_TIMEOUT); | |
d439d286 JS |
1811 | if (iocb_stat) { |
1812 | ret_val = -EIO; | |
3b5dd52a | 1813 | goto err_get_xri_exit; |
d439d286 | 1814 | } |
3b5dd52a JS |
1815 | *txxri = rsp->ulpContext; |
1816 | ||
1817 | evt->waiting = 1; | |
1818 | evt->wait_time_stamp = jiffies; | |
d439d286 | 1819 | time_left = wait_event_interruptible_timeout( |
3b5dd52a JS |
1820 | evt->wq, !list_empty(&evt->events_to_see), |
1821 | ((phba->fc_ratov * 2) + LPFC_DRVR_TIMEOUT) * HZ); | |
1822 | if (list_empty(&evt->events_to_see)) | |
d439d286 | 1823 | ret_val = (time_left) ? -EINTR : -ETIMEDOUT; |
3b5dd52a | 1824 | else { |
3b5dd52a JS |
1825 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
1826 | list_move(evt->events_to_see.prev, &evt->events_to_get); | |
1827 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
1828 | *rxxri = (list_entry(evt->events_to_get.prev, | |
1829 | typeof(struct event_data), | |
1830 | node))->immed_dat; | |
1831 | } | |
1832 | evt->waiting = 0; | |
1833 | ||
1834 | err_get_xri_exit: | |
1835 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
1836 | lpfc_bsg_event_unref(evt); /* release ref */ | |
1837 | lpfc_bsg_event_unref(evt); /* delete */ | |
1838 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
1839 | ||
1840 | if (dmabuf) { | |
1841 | if (dmabuf->virt) | |
1842 | lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys); | |
1843 | kfree(dmabuf); | |
1844 | } | |
1845 | ||
d439d286 | 1846 | if (cmdiocbq && (iocb_stat != IOCB_TIMEDOUT)) |
3b5dd52a JS |
1847 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
1848 | if (rspiocbq) | |
1849 | lpfc_sli_release_iocbq(phba, rspiocbq); | |
1850 | return ret_val; | |
1851 | } | |
1852 | ||
1853 | /** | |
1854 | * diag_cmd_data_alloc - fills in a bde struct with dma buffers | |
1855 | * @phba: Pointer to HBA context object | |
1856 | * @bpl: Pointer to 64 bit bde structure | |
1857 | * @size: Number of bytes to process | |
1858 | * @nocopydata: Flag to copy user data into the allocated buffer | |
1859 | * | |
1860 | * This function allocates page size buffers and populates an lpfc_dmabufext. | |
1861 | * If allowed the user data pointed to with indataptr is copied into the kernel | |
1862 | * memory. The chained list of page size buffers is returned. | |
1863 | **/ | |
1864 | static struct lpfc_dmabufext * | |
1865 | diag_cmd_data_alloc(struct lpfc_hba *phba, | |
1866 | struct ulp_bde64 *bpl, uint32_t size, | |
1867 | int nocopydata) | |
1868 | { | |
1869 | struct lpfc_dmabufext *mlist = NULL; | |
1870 | struct lpfc_dmabufext *dmp; | |
1871 | int cnt, offset = 0, i = 0; | |
1872 | struct pci_dev *pcidev; | |
1873 | ||
1874 | pcidev = phba->pcidev; | |
1875 | ||
1876 | while (size) { | |
1877 | /* We get chunks of 4K */ | |
1878 | if (size > BUF_SZ_4K) | |
1879 | cnt = BUF_SZ_4K; | |
1880 | else | |
1881 | cnt = size; | |
1882 | ||
1883 | /* allocate struct lpfc_dmabufext buffer header */ | |
1884 | dmp = kmalloc(sizeof(struct lpfc_dmabufext), GFP_KERNEL); | |
1885 | if (!dmp) | |
1886 | goto out; | |
1887 | ||
1888 | INIT_LIST_HEAD(&dmp->dma.list); | |
1889 | ||
1890 | /* Queue it to a linked list */ | |
1891 | if (mlist) | |
1892 | list_add_tail(&dmp->dma.list, &mlist->dma.list); | |
1893 | else | |
1894 | mlist = dmp; | |
1895 | ||
1896 | /* allocate buffer */ | |
1897 | dmp->dma.virt = dma_alloc_coherent(&pcidev->dev, | |
1898 | cnt, | |
1899 | &(dmp->dma.phys), | |
1900 | GFP_KERNEL); | |
1901 | ||
1902 | if (!dmp->dma.virt) | |
1903 | goto out; | |
1904 | ||
1905 | dmp->size = cnt; | |
1906 | ||
1907 | if (nocopydata) { | |
1908 | bpl->tus.f.bdeFlags = 0; | |
1909 | pci_dma_sync_single_for_device(phba->pcidev, | |
1910 | dmp->dma.phys, LPFC_BPL_SIZE, PCI_DMA_TODEVICE); | |
1911 | ||
1912 | } else { | |
1913 | memset((uint8_t *)dmp->dma.virt, 0, cnt); | |
1914 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; | |
1915 | } | |
1916 | ||
1917 | /* build buffer ptr list for IOCB */ | |
1918 | bpl->addrLow = le32_to_cpu(putPaddrLow(dmp->dma.phys)); | |
1919 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(dmp->dma.phys)); | |
1920 | bpl->tus.f.bdeSize = (ushort) cnt; | |
1921 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
1922 | bpl++; | |
1923 | ||
1924 | i++; | |
1925 | offset += cnt; | |
1926 | size -= cnt; | |
1927 | } | |
1928 | ||
1929 | mlist->flag = i; | |
1930 | return mlist; | |
1931 | out: | |
1932 | diag_cmd_data_free(phba, mlist); | |
1933 | return NULL; | |
1934 | } | |
1935 | ||
1936 | /** | |
1937 | * lpfcdiag_loop_post_rxbufs - post the receive buffers for an unsol CT cmd | |
1938 | * @phba: Pointer to HBA context object | |
1939 | * @rxxri: Receive exchange id | |
1940 | * @len: Number of data bytes | |
1941 | * | |
1942 | * This function allocates and posts a data buffer of sufficient size to recieve | |
1943 | * an unsolicted CT command. | |
1944 | **/ | |
1945 | static int lpfcdiag_loop_post_rxbufs(struct lpfc_hba *phba, uint16_t rxxri, | |
1946 | size_t len) | |
1947 | { | |
1948 | struct lpfc_sli *psli = &phba->sli; | |
1949 | struct lpfc_sli_ring *pring = &psli->ring[LPFC_ELS_RING]; | |
1950 | struct lpfc_iocbq *cmdiocbq; | |
1951 | IOCB_t *cmd = NULL; | |
1952 | struct list_head head, *curr, *next; | |
1953 | struct lpfc_dmabuf *rxbmp; | |
1954 | struct lpfc_dmabuf *dmp; | |
1955 | struct lpfc_dmabuf *mp[2] = {NULL, NULL}; | |
1956 | struct ulp_bde64 *rxbpl = NULL; | |
1957 | uint32_t num_bde; | |
1958 | struct lpfc_dmabufext *rxbuffer = NULL; | |
1959 | int ret_val = 0; | |
d439d286 | 1960 | int iocb_stat; |
3b5dd52a JS |
1961 | int i = 0; |
1962 | ||
1963 | cmdiocbq = lpfc_sli_get_iocbq(phba); | |
1964 | rxbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
1965 | if (rxbmp != NULL) { | |
1966 | rxbmp->virt = lpfc_mbuf_alloc(phba, 0, &rxbmp->phys); | |
c7495937 JS |
1967 | if (rxbmp->virt) { |
1968 | INIT_LIST_HEAD(&rxbmp->list); | |
1969 | rxbpl = (struct ulp_bde64 *) rxbmp->virt; | |
1970 | rxbuffer = diag_cmd_data_alloc(phba, rxbpl, len, 0); | |
1971 | } | |
3b5dd52a JS |
1972 | } |
1973 | ||
1974 | if (!cmdiocbq || !rxbmp || !rxbpl || !rxbuffer) { | |
d439d286 | 1975 | ret_val = -ENOMEM; |
3b5dd52a JS |
1976 | goto err_post_rxbufs_exit; |
1977 | } | |
1978 | ||
1979 | /* Queue buffers for the receive exchange */ | |
1980 | num_bde = (uint32_t)rxbuffer->flag; | |
1981 | dmp = &rxbuffer->dma; | |
1982 | ||
1983 | cmd = &cmdiocbq->iocb; | |
1984 | i = 0; | |
1985 | ||
1986 | INIT_LIST_HEAD(&head); | |
1987 | list_add_tail(&head, &dmp->list); | |
1988 | list_for_each_safe(curr, next, &head) { | |
1989 | mp[i] = list_entry(curr, struct lpfc_dmabuf, list); | |
1990 | list_del(curr); | |
1991 | ||
1992 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { | |
1993 | mp[i]->buffer_tag = lpfc_sli_get_buffer_tag(phba); | |
1994 | cmd->un.quexri64cx.buff.bde.addrHigh = | |
1995 | putPaddrHigh(mp[i]->phys); | |
1996 | cmd->un.quexri64cx.buff.bde.addrLow = | |
1997 | putPaddrLow(mp[i]->phys); | |
1998 | cmd->un.quexri64cx.buff.bde.tus.f.bdeSize = | |
1999 | ((struct lpfc_dmabufext *)mp[i])->size; | |
2000 | cmd->un.quexri64cx.buff.buffer_tag = mp[i]->buffer_tag; | |
2001 | cmd->ulpCommand = CMD_QUE_XRI64_CX; | |
2002 | cmd->ulpPU = 0; | |
2003 | cmd->ulpLe = 1; | |
2004 | cmd->ulpBdeCount = 1; | |
2005 | cmd->unsli3.que_xri64cx_ext_words.ebde_count = 0; | |
2006 | ||
2007 | } else { | |
2008 | cmd->un.cont64[i].addrHigh = putPaddrHigh(mp[i]->phys); | |
2009 | cmd->un.cont64[i].addrLow = putPaddrLow(mp[i]->phys); | |
2010 | cmd->un.cont64[i].tus.f.bdeSize = | |
2011 | ((struct lpfc_dmabufext *)mp[i])->size; | |
2012 | cmd->ulpBdeCount = ++i; | |
2013 | ||
2014 | if ((--num_bde > 0) && (i < 2)) | |
2015 | continue; | |
2016 | ||
2017 | cmd->ulpCommand = CMD_QUE_XRI_BUF64_CX; | |
2018 | cmd->ulpLe = 1; | |
2019 | } | |
2020 | ||
2021 | cmd->ulpClass = CLASS3; | |
2022 | cmd->ulpContext = rxxri; | |
2023 | ||
d439d286 JS |
2024 | iocb_stat = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, |
2025 | 0); | |
2026 | if (iocb_stat == IOCB_ERROR) { | |
3b5dd52a JS |
2027 | diag_cmd_data_free(phba, |
2028 | (struct lpfc_dmabufext *)mp[0]); | |
2029 | if (mp[1]) | |
2030 | diag_cmd_data_free(phba, | |
2031 | (struct lpfc_dmabufext *)mp[1]); | |
2032 | dmp = list_entry(next, struct lpfc_dmabuf, list); | |
d439d286 | 2033 | ret_val = -EIO; |
3b5dd52a JS |
2034 | goto err_post_rxbufs_exit; |
2035 | } | |
2036 | ||
2037 | lpfc_sli_ringpostbuf_put(phba, pring, mp[0]); | |
2038 | if (mp[1]) { | |
2039 | lpfc_sli_ringpostbuf_put(phba, pring, mp[1]); | |
2040 | mp[1] = NULL; | |
2041 | } | |
2042 | ||
2043 | /* The iocb was freed by lpfc_sli_issue_iocb */ | |
2044 | cmdiocbq = lpfc_sli_get_iocbq(phba); | |
2045 | if (!cmdiocbq) { | |
2046 | dmp = list_entry(next, struct lpfc_dmabuf, list); | |
d439d286 | 2047 | ret_val = -EIO; |
3b5dd52a JS |
2048 | goto err_post_rxbufs_exit; |
2049 | } | |
2050 | ||
2051 | cmd = &cmdiocbq->iocb; | |
2052 | i = 0; | |
2053 | } | |
2054 | list_del(&head); | |
2055 | ||
2056 | err_post_rxbufs_exit: | |
2057 | ||
2058 | if (rxbmp) { | |
2059 | if (rxbmp->virt) | |
2060 | lpfc_mbuf_free(phba, rxbmp->virt, rxbmp->phys); | |
2061 | kfree(rxbmp); | |
2062 | } | |
2063 | ||
2064 | if (cmdiocbq) | |
2065 | lpfc_sli_release_iocbq(phba, cmdiocbq); | |
2066 | return ret_val; | |
2067 | } | |
2068 | ||
2069 | /** | |
2070 | * lpfc_bsg_diag_test - with a port in loopback issues a Ct cmd to itself | |
2071 | * @job: LPFC_BSG_VENDOR_DIAG_TEST fc_bsg_job | |
2072 | * | |
2073 | * This function receives a user data buffer to be transmitted and received on | |
2074 | * the same port, the link must be up and in loopback mode prior | |
2075 | * to being called. | |
2076 | * 1. A kernel buffer is allocated to copy the user data into. | |
2077 | * 2. The port registers with "itself". | |
2078 | * 3. The transmit and receive exchange ids are obtained. | |
2079 | * 4. The receive exchange id is posted. | |
2080 | * 5. A new els loopback event is created. | |
2081 | * 6. The command and response iocbs are allocated. | |
2082 | * 7. The cmd iocb FsType is set to elx loopback and the CmdRsp to looppback. | |
2083 | * | |
2084 | * This function is meant to be called n times while the port is in loopback | |
2085 | * so it is the apps responsibility to issue a reset to take the port out | |
2086 | * of loopback mode. | |
2087 | **/ | |
2088 | static int | |
2089 | lpfc_bsg_diag_test(struct fc_bsg_job *job) | |
2090 | { | |
2091 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
2092 | struct lpfc_hba *phba = vport->phba; | |
2093 | struct diag_mode_test *diag_mode; | |
2094 | struct lpfc_bsg_event *evt; | |
2095 | struct event_data *evdat; | |
2096 | struct lpfc_sli *psli = &phba->sli; | |
2097 | uint32_t size; | |
2098 | uint32_t full_size; | |
2099 | size_t segment_len = 0, segment_offset = 0, current_offset = 0; | |
4042629e | 2100 | uint16_t rpi = 0; |
3b5dd52a JS |
2101 | struct lpfc_iocbq *cmdiocbq, *rspiocbq; |
2102 | IOCB_t *cmd, *rsp; | |
2103 | struct lpfc_sli_ct_request *ctreq; | |
2104 | struct lpfc_dmabuf *txbmp; | |
2105 | struct ulp_bde64 *txbpl = NULL; | |
2106 | struct lpfc_dmabufext *txbuffer = NULL; | |
2107 | struct list_head head; | |
2108 | struct lpfc_dmabuf *curr; | |
2109 | uint16_t txxri, rxxri; | |
2110 | uint32_t num_bde; | |
2111 | uint8_t *ptr = NULL, *rx_databuf = NULL; | |
2112 | int rc = 0; | |
d439d286 JS |
2113 | int time_left; |
2114 | int iocb_stat; | |
3b5dd52a JS |
2115 | unsigned long flags; |
2116 | void *dataout = NULL; | |
2117 | uint32_t total_mem; | |
2118 | ||
2119 | /* in case no data is returned return just the return code */ | |
2120 | job->reply->reply_payload_rcv_len = 0; | |
2121 | ||
2122 | if (job->request_len < | |
2123 | sizeof(struct fc_bsg_request) + sizeof(struct diag_mode_test)) { | |
2124 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
2125 | "2739 Received DIAG TEST request below minimum " | |
2126 | "size\n"); | |
2127 | rc = -EINVAL; | |
2128 | goto loopback_test_exit; | |
2129 | } | |
2130 | ||
2131 | if (job->request_payload.payload_len != | |
2132 | job->reply_payload.payload_len) { | |
2133 | rc = -EINVAL; | |
2134 | goto loopback_test_exit; | |
2135 | } | |
2136 | ||
2137 | diag_mode = (struct diag_mode_test *) | |
2138 | job->request->rqst_data.h_vendor.vendor_cmd; | |
2139 | ||
2140 | if ((phba->link_state == LPFC_HBA_ERROR) || | |
2141 | (psli->sli_flag & LPFC_BLOCK_MGMT_IO) || | |
2142 | (!(psli->sli_flag & LPFC_SLI_ACTIVE))) { | |
2143 | rc = -EACCES; | |
2144 | goto loopback_test_exit; | |
2145 | } | |
2146 | ||
2147 | if (!lpfc_is_link_up(phba) || !(phba->link_flag & LS_LOOPBACK_MODE)) { | |
2148 | rc = -EACCES; | |
2149 | goto loopback_test_exit; | |
2150 | } | |
2151 | ||
2152 | size = job->request_payload.payload_len; | |
2153 | full_size = size + ELX_LOOPBACK_HEADER_SZ; /* plus the header */ | |
2154 | ||
2155 | if ((size == 0) || (size > 80 * BUF_SZ_4K)) { | |
2156 | rc = -ERANGE; | |
2157 | goto loopback_test_exit; | |
2158 | } | |
2159 | ||
63e801ce | 2160 | if (full_size >= BUF_SZ_4K) { |
3b5dd52a JS |
2161 | /* |
2162 | * Allocate memory for ioctl data. If buffer is bigger than 64k, | |
2163 | * then we allocate 64k and re-use that buffer over and over to | |
2164 | * xfer the whole block. This is because Linux kernel has a | |
2165 | * problem allocating more than 120k of kernel space memory. Saw | |
2166 | * problem with GET_FCPTARGETMAPPING... | |
2167 | */ | |
2168 | if (size <= (64 * 1024)) | |
63e801ce | 2169 | total_mem = full_size; |
3b5dd52a JS |
2170 | else |
2171 | total_mem = 64 * 1024; | |
2172 | } else | |
2173 | /* Allocate memory for ioctl data */ | |
2174 | total_mem = BUF_SZ_4K; | |
2175 | ||
2176 | dataout = kmalloc(total_mem, GFP_KERNEL); | |
2177 | if (dataout == NULL) { | |
2178 | rc = -ENOMEM; | |
2179 | goto loopback_test_exit; | |
2180 | } | |
2181 | ||
2182 | ptr = dataout; | |
2183 | ptr += ELX_LOOPBACK_HEADER_SZ; | |
2184 | sg_copy_to_buffer(job->request_payload.sg_list, | |
2185 | job->request_payload.sg_cnt, | |
2186 | ptr, size); | |
3b5dd52a | 2187 | rc = lpfcdiag_loop_self_reg(phba, &rpi); |
d439d286 | 2188 | if (rc) |
3b5dd52a | 2189 | goto loopback_test_exit; |
3b5dd52a JS |
2190 | |
2191 | rc = lpfcdiag_loop_get_xri(phba, rpi, &txxri, &rxxri); | |
2192 | if (rc) { | |
2193 | lpfcdiag_loop_self_unreg(phba, rpi); | |
3b5dd52a JS |
2194 | goto loopback_test_exit; |
2195 | } | |
2196 | ||
2197 | rc = lpfcdiag_loop_post_rxbufs(phba, rxxri, full_size); | |
2198 | if (rc) { | |
2199 | lpfcdiag_loop_self_unreg(phba, rpi); | |
3b5dd52a JS |
2200 | goto loopback_test_exit; |
2201 | } | |
2202 | ||
2203 | evt = lpfc_bsg_event_new(FC_REG_CT_EVENT, current->pid, | |
2204 | SLI_CT_ELX_LOOPBACK); | |
2205 | if (!evt) { | |
2206 | lpfcdiag_loop_self_unreg(phba, rpi); | |
2207 | rc = -ENOMEM; | |
2208 | goto loopback_test_exit; | |
2209 | } | |
2210 | ||
2211 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
2212 | list_add(&evt->node, &phba->ct_ev_waiters); | |
2213 | lpfc_bsg_event_ref(evt); | |
2214 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
2215 | ||
2216 | cmdiocbq = lpfc_sli_get_iocbq(phba); | |
2217 | rspiocbq = lpfc_sli_get_iocbq(phba); | |
2218 | txbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
2219 | ||
2220 | if (txbmp) { | |
2221 | txbmp->virt = lpfc_mbuf_alloc(phba, 0, &txbmp->phys); | |
c7495937 JS |
2222 | if (txbmp->virt) { |
2223 | INIT_LIST_HEAD(&txbmp->list); | |
2224 | txbpl = (struct ulp_bde64 *) txbmp->virt; | |
3b5dd52a JS |
2225 | txbuffer = diag_cmd_data_alloc(phba, |
2226 | txbpl, full_size, 0); | |
c7495937 | 2227 | } |
3b5dd52a JS |
2228 | } |
2229 | ||
c7495937 JS |
2230 | if (!cmdiocbq || !rspiocbq || !txbmp || !txbpl || !txbuffer || |
2231 | !txbmp->virt) { | |
3b5dd52a JS |
2232 | rc = -ENOMEM; |
2233 | goto err_loopback_test_exit; | |
2234 | } | |
2235 | ||
2236 | cmd = &cmdiocbq->iocb; | |
2237 | rsp = &rspiocbq->iocb; | |
2238 | ||
2239 | INIT_LIST_HEAD(&head); | |
2240 | list_add_tail(&head, &txbuffer->dma.list); | |
2241 | list_for_each_entry(curr, &head, list) { | |
2242 | segment_len = ((struct lpfc_dmabufext *)curr)->size; | |
2243 | if (current_offset == 0) { | |
2244 | ctreq = curr->virt; | |
2245 | memset(ctreq, 0, ELX_LOOPBACK_HEADER_SZ); | |
2246 | ctreq->RevisionId.bits.Revision = SLI_CT_REVISION; | |
2247 | ctreq->RevisionId.bits.InId = 0; | |
2248 | ctreq->FsType = SLI_CT_ELX_LOOPBACK; | |
2249 | ctreq->FsSubType = 0; | |
2250 | ctreq->CommandResponse.bits.CmdRsp = ELX_LOOPBACK_DATA; | |
2251 | ctreq->CommandResponse.bits.Size = size; | |
2252 | segment_offset = ELX_LOOPBACK_HEADER_SZ; | |
2253 | } else | |
2254 | segment_offset = 0; | |
2255 | ||
2256 | BUG_ON(segment_offset >= segment_len); | |
2257 | memcpy(curr->virt + segment_offset, | |
2258 | ptr + current_offset, | |
2259 | segment_len - segment_offset); | |
2260 | ||
2261 | current_offset += segment_len - segment_offset; | |
2262 | BUG_ON(current_offset > size); | |
2263 | } | |
2264 | list_del(&head); | |
2265 | ||
2266 | /* Build the XMIT_SEQUENCE iocb */ | |
2267 | ||
2268 | num_bde = (uint32_t)txbuffer->flag; | |
2269 | ||
2270 | cmd->un.xseq64.bdl.addrHigh = putPaddrHigh(txbmp->phys); | |
2271 | cmd->un.xseq64.bdl.addrLow = putPaddrLow(txbmp->phys); | |
2272 | cmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; | |
2273 | cmd->un.xseq64.bdl.bdeSize = (num_bde * sizeof(struct ulp_bde64)); | |
2274 | ||
2275 | cmd->un.xseq64.w5.hcsw.Fctl = (LS | LA); | |
2276 | cmd->un.xseq64.w5.hcsw.Dfctl = 0; | |
2277 | cmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL; | |
2278 | cmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT; | |
2279 | ||
2280 | cmd->ulpCommand = CMD_XMIT_SEQUENCE64_CX; | |
2281 | cmd->ulpBdeCount = 1; | |
2282 | cmd->ulpLe = 1; | |
2283 | cmd->ulpClass = CLASS3; | |
2284 | cmd->ulpContext = txxri; | |
2285 | ||
2286 | cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC; | |
2287 | cmdiocbq->vport = phba->pport; | |
2288 | ||
d439d286 JS |
2289 | iocb_stat = lpfc_sli_issue_iocb_wait(phba, LPFC_ELS_RING, cmdiocbq, |
2290 | rspiocbq, (phba->fc_ratov * 2) + | |
2291 | LPFC_DRVR_TIMEOUT); | |
3b5dd52a | 2292 | |
d439d286 | 2293 | if ((iocb_stat != IOCB_SUCCESS) || (rsp->ulpStatus != IOCB_SUCCESS)) { |
3b5dd52a JS |
2294 | rc = -EIO; |
2295 | goto err_loopback_test_exit; | |
2296 | } | |
2297 | ||
2298 | evt->waiting = 1; | |
d439d286 | 2299 | time_left = wait_event_interruptible_timeout( |
3b5dd52a JS |
2300 | evt->wq, !list_empty(&evt->events_to_see), |
2301 | ((phba->fc_ratov * 2) + LPFC_DRVR_TIMEOUT) * HZ); | |
2302 | evt->waiting = 0; | |
2303 | if (list_empty(&evt->events_to_see)) | |
d439d286 | 2304 | rc = (time_left) ? -EINTR : -ETIMEDOUT; |
3b5dd52a JS |
2305 | else { |
2306 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
2307 | list_move(evt->events_to_see.prev, &evt->events_to_get); | |
2308 | evdat = list_entry(evt->events_to_get.prev, | |
2309 | typeof(*evdat), node); | |
2310 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
2311 | rx_databuf = evdat->data; | |
2312 | if (evdat->len != full_size) { | |
2313 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, | |
2314 | "1603 Loopback test did not receive expected " | |
2315 | "data length. actual length 0x%x expected " | |
2316 | "length 0x%x\n", | |
2317 | evdat->len, full_size); | |
2318 | rc = -EIO; | |
2319 | } else if (rx_databuf == NULL) | |
2320 | rc = -EIO; | |
2321 | else { | |
2322 | rc = IOCB_SUCCESS; | |
2323 | /* skip over elx loopback header */ | |
2324 | rx_databuf += ELX_LOOPBACK_HEADER_SZ; | |
2325 | job->reply->reply_payload_rcv_len = | |
2326 | sg_copy_from_buffer(job->reply_payload.sg_list, | |
2327 | job->reply_payload.sg_cnt, | |
2328 | rx_databuf, size); | |
2329 | job->reply->reply_payload_rcv_len = size; | |
2330 | } | |
2331 | } | |
2332 | ||
2333 | err_loopback_test_exit: | |
2334 | lpfcdiag_loop_self_unreg(phba, rpi); | |
2335 | ||
2336 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
2337 | lpfc_bsg_event_unref(evt); /* release ref */ | |
2338 | lpfc_bsg_event_unref(evt); /* delete */ | |
2339 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
2340 | ||
2341 | if (cmdiocbq != NULL) | |
2342 | lpfc_sli_release_iocbq(phba, cmdiocbq); | |
2343 | ||
2344 | if (rspiocbq != NULL) | |
2345 | lpfc_sli_release_iocbq(phba, rspiocbq); | |
2346 | ||
2347 | if (txbmp != NULL) { | |
2348 | if (txbpl != NULL) { | |
2349 | if (txbuffer != NULL) | |
2350 | diag_cmd_data_free(phba, txbuffer); | |
2351 | lpfc_mbuf_free(phba, txbmp->virt, txbmp->phys); | |
2352 | } | |
2353 | kfree(txbmp); | |
2354 | } | |
2355 | ||
2356 | loopback_test_exit: | |
2357 | kfree(dataout); | |
2358 | /* make error code available to userspace */ | |
2359 | job->reply->result = rc; | |
2360 | job->dd_data = NULL; | |
2361 | /* complete the job back to userspace if no error */ | |
2362 | if (rc == 0) | |
2363 | job->job_done(job); | |
2364 | return rc; | |
2365 | } | |
2366 | ||
2367 | /** | |
2368 | * lpfc_bsg_get_dfc_rev - process a GET_DFC_REV bsg vendor command | |
2369 | * @job: GET_DFC_REV fc_bsg_job | |
2370 | **/ | |
2371 | static int | |
2372 | lpfc_bsg_get_dfc_rev(struct fc_bsg_job *job) | |
2373 | { | |
2374 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
2375 | struct lpfc_hba *phba = vport->phba; | |
2376 | struct get_mgmt_rev *event_req; | |
2377 | struct get_mgmt_rev_reply *event_reply; | |
2378 | int rc = 0; | |
2379 | ||
2380 | if (job->request_len < | |
2381 | sizeof(struct fc_bsg_request) + sizeof(struct get_mgmt_rev)) { | |
2382 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
2383 | "2740 Received GET_DFC_REV request below " | |
2384 | "minimum size\n"); | |
2385 | rc = -EINVAL; | |
2386 | goto job_error; | |
2387 | } | |
2388 | ||
2389 | event_req = (struct get_mgmt_rev *) | |
2390 | job->request->rqst_data.h_vendor.vendor_cmd; | |
2391 | ||
2392 | event_reply = (struct get_mgmt_rev_reply *) | |
2393 | job->reply->reply_data.vendor_reply.vendor_rsp; | |
2394 | ||
2395 | if (job->reply_len < | |
2396 | sizeof(struct fc_bsg_request) + sizeof(struct get_mgmt_rev_reply)) { | |
2397 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
2398 | "2741 Received GET_DFC_REV reply below " | |
2399 | "minimum size\n"); | |
2400 | rc = -EINVAL; | |
2401 | goto job_error; | |
2402 | } | |
2403 | ||
2404 | event_reply->info.a_Major = MANAGEMENT_MAJOR_REV; | |
2405 | event_reply->info.a_Minor = MANAGEMENT_MINOR_REV; | |
2406 | job_error: | |
2407 | job->reply->result = rc; | |
2408 | if (rc == 0) | |
2409 | job->job_done(job); | |
2410 | return rc; | |
2411 | } | |
2412 | ||
2413 | /** | |
2414 | * lpfc_bsg_wake_mbox_wait - lpfc_bsg_issue_mbox mbox completion handler | |
2415 | * @phba: Pointer to HBA context object. | |
2416 | * @pmboxq: Pointer to mailbox command. | |
2417 | * | |
2418 | * This is completion handler function for mailbox commands issued from | |
2419 | * lpfc_bsg_issue_mbox function. This function is called by the | |
2420 | * mailbox event handler function with no lock held. This function | |
2421 | * will wake up thread waiting on the wait queue pointed by context1 | |
2422 | * of the mailbox. | |
2423 | **/ | |
2424 | void | |
2425 | lpfc_bsg_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) | |
2426 | { | |
2427 | struct bsg_job_data *dd_data; | |
3b5dd52a JS |
2428 | struct fc_bsg_job *job; |
2429 | uint32_t size; | |
2430 | unsigned long flags; | |
7a470277 JS |
2431 | uint8_t *to; |
2432 | uint8_t *from; | |
3b5dd52a JS |
2433 | |
2434 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
2435 | dd_data = pmboxq->context1; | |
7a470277 | 2436 | /* job already timed out? */ |
3b5dd52a JS |
2437 | if (!dd_data) { |
2438 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
2439 | return; | |
2440 | } | |
2441 | ||
7a470277 JS |
2442 | /* build the outgoing buffer to do an sg copy |
2443 | * the format is the response mailbox followed by any extended | |
2444 | * mailbox data | |
2445 | */ | |
2446 | from = (uint8_t *)&pmboxq->u.mb; | |
2447 | to = (uint8_t *)dd_data->context_un.mbox.mb; | |
2448 | memcpy(to, from, sizeof(MAILBOX_t)); | |
c7495937 JS |
2449 | if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS) { |
2450 | /* copy the extended data if any, count is in words */ | |
2451 | if (dd_data->context_un.mbox.outExtWLen) { | |
2452 | from = (uint8_t *)dd_data->context_un.mbox.ext; | |
2453 | to += sizeof(MAILBOX_t); | |
2454 | size = dd_data->context_un.mbox.outExtWLen * | |
2455 | sizeof(uint32_t); | |
2456 | memcpy(to, from, size); | |
2457 | } else if (pmboxq->u.mb.mbxCommand == MBX_RUN_BIU_DIAG64) { | |
2458 | from = (uint8_t *)dd_data->context_un.mbox. | |
2459 | dmp->dma.virt; | |
2460 | to += sizeof(MAILBOX_t); | |
2461 | size = dd_data->context_un.mbox.dmp->size; | |
2462 | memcpy(to, from, size); | |
2463 | } else if ((phba->sli_rev == LPFC_SLI_REV4) && | |
2464 | (pmboxq->u.mb.mbxCommand == MBX_DUMP_MEMORY)) { | |
2465 | from = (uint8_t *)dd_data->context_un.mbox.dmp->dma. | |
2466 | virt; | |
2467 | to += sizeof(MAILBOX_t); | |
2468 | size = pmboxq->u.mb.un.varWords[5]; | |
2469 | memcpy(to, from, size); | |
515e0aa2 JS |
2470 | } else if ((phba->sli_rev == LPFC_SLI_REV4) && |
2471 | (pmboxq->u.mb.mbxCommand == MBX_SLI4_CONFIG)) { | |
2472 | struct lpfc_mbx_nembed_cmd *nembed_sge = | |
2473 | (struct lpfc_mbx_nembed_cmd *) | |
2474 | &pmboxq->u.mb.un.varWords[0]; | |
2475 | ||
2476 | from = (uint8_t *)dd_data->context_un.mbox.dmp->dma. | |
2477 | virt; | |
2478 | to += sizeof(MAILBOX_t); | |
2479 | size = nembed_sge->sge[0].length; | |
2480 | memcpy(to, from, size); | |
c7495937 JS |
2481 | } else if (pmboxq->u.mb.mbxCommand == MBX_READ_EVENT_LOG) { |
2482 | from = (uint8_t *)dd_data->context_un. | |
2483 | mbox.dmp->dma.virt; | |
2484 | to += sizeof(MAILBOX_t); | |
2485 | size = dd_data->context_un.mbox.dmp->size; | |
2486 | memcpy(to, from, size); | |
2487 | } | |
7a470277 JS |
2488 | } |
2489 | ||
2490 | from = (uint8_t *)dd_data->context_un.mbox.mb; | |
3b5dd52a | 2491 | job = dd_data->context_un.mbox.set_job; |
5a6f133e JS |
2492 | if (job) { |
2493 | size = job->reply_payload.payload_len; | |
2494 | job->reply->reply_payload_rcv_len = | |
2495 | sg_copy_from_buffer(job->reply_payload.sg_list, | |
2496 | job->reply_payload.sg_cnt, | |
2497 | from, size); | |
2498 | job->reply->result = 0; | |
7a470277 | 2499 | |
5a6f133e JS |
2500 | job->dd_data = NULL; |
2501 | job->job_done(job); | |
2502 | } | |
3b5dd52a | 2503 | dd_data->context_un.mbox.set_job = NULL; |
7a470277 JS |
2504 | /* need to hold the lock until we call job done to hold off |
2505 | * the timeout handler returning to the midlayer while | |
2506 | * we are stillprocessing the job | |
2507 | */ | |
3b5dd52a | 2508 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
7a470277 JS |
2509 | |
2510 | kfree(dd_data->context_un.mbox.mb); | |
3b5dd52a | 2511 | mempool_free(dd_data->context_un.mbox.pmboxq, phba->mbox_mem_pool); |
7a470277 JS |
2512 | kfree(dd_data->context_un.mbox.ext); |
2513 | if (dd_data->context_un.mbox.dmp) { | |
2514 | dma_free_coherent(&phba->pcidev->dev, | |
2515 | dd_data->context_un.mbox.dmp->size, | |
2516 | dd_data->context_un.mbox.dmp->dma.virt, | |
2517 | dd_data->context_un.mbox.dmp->dma.phys); | |
2518 | kfree(dd_data->context_un.mbox.dmp); | |
2519 | } | |
2520 | if (dd_data->context_un.mbox.rxbmp) { | |
2521 | lpfc_mbuf_free(phba, dd_data->context_un.mbox.rxbmp->virt, | |
2522 | dd_data->context_un.mbox.rxbmp->phys); | |
2523 | kfree(dd_data->context_un.mbox.rxbmp); | |
2524 | } | |
3b5dd52a JS |
2525 | kfree(dd_data); |
2526 | return; | |
2527 | } | |
2528 | ||
2529 | /** | |
2530 | * lpfc_bsg_check_cmd_access - test for a supported mailbox command | |
2531 | * @phba: Pointer to HBA context object. | |
2532 | * @mb: Pointer to a mailbox object. | |
2533 | * @vport: Pointer to a vport object. | |
2534 | * | |
2535 | * Some commands require the port to be offline, some may not be called from | |
2536 | * the application. | |
2537 | **/ | |
2538 | static int lpfc_bsg_check_cmd_access(struct lpfc_hba *phba, | |
2539 | MAILBOX_t *mb, struct lpfc_vport *vport) | |
2540 | { | |
2541 | /* return negative error values for bsg job */ | |
2542 | switch (mb->mbxCommand) { | |
2543 | /* Offline only */ | |
2544 | case MBX_INIT_LINK: | |
2545 | case MBX_DOWN_LINK: | |
2546 | case MBX_CONFIG_LINK: | |
2547 | case MBX_CONFIG_RING: | |
2548 | case MBX_RESET_RING: | |
2549 | case MBX_UNREG_LOGIN: | |
2550 | case MBX_CLEAR_LA: | |
2551 | case MBX_DUMP_CONTEXT: | |
2552 | case MBX_RUN_DIAGS: | |
2553 | case MBX_RESTART: | |
2554 | case MBX_SET_MASK: | |
2555 | if (!(vport->fc_flag & FC_OFFLINE_MODE)) { | |
2556 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
2557 | "2743 Command 0x%x is illegal in on-line " | |
2558 | "state\n", | |
2559 | mb->mbxCommand); | |
2560 | return -EPERM; | |
2561 | } | |
2562 | case MBX_WRITE_NV: | |
2563 | case MBX_WRITE_VPARMS: | |
2564 | case MBX_LOAD_SM: | |
2565 | case MBX_READ_NV: | |
2566 | case MBX_READ_CONFIG: | |
2567 | case MBX_READ_RCONFIG: | |
2568 | case MBX_READ_STATUS: | |
2569 | case MBX_READ_XRI: | |
2570 | case MBX_READ_REV: | |
2571 | case MBX_READ_LNK_STAT: | |
2572 | case MBX_DUMP_MEMORY: | |
2573 | case MBX_DOWN_LOAD: | |
2574 | case MBX_UPDATE_CFG: | |
2575 | case MBX_KILL_BOARD: | |
2576 | case MBX_LOAD_AREA: | |
2577 | case MBX_LOAD_EXP_ROM: | |
2578 | case MBX_BEACON: | |
2579 | case MBX_DEL_LD_ENTRY: | |
2580 | case MBX_SET_DEBUG: | |
2581 | case MBX_WRITE_WWN: | |
2582 | case MBX_SLI4_CONFIG: | |
c7495937 | 2583 | case MBX_READ_EVENT_LOG: |
3b5dd52a JS |
2584 | case MBX_READ_EVENT_LOG_STATUS: |
2585 | case MBX_WRITE_EVENT_LOG: | |
2586 | case MBX_PORT_CAPABILITIES: | |
2587 | case MBX_PORT_IOV_CONTROL: | |
7a470277 | 2588 | case MBX_RUN_BIU_DIAG64: |
3b5dd52a JS |
2589 | break; |
2590 | case MBX_SET_VARIABLE: | |
e2aed29f JS |
2591 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
2592 | "1226 mbox: set_variable 0x%x, 0x%x\n", | |
2593 | mb->un.varWords[0], | |
2594 | mb->un.varWords[1]); | |
2595 | if ((mb->un.varWords[0] == SETVAR_MLOMNT) | |
2596 | && (mb->un.varWords[1] == 1)) { | |
2597 | phba->wait_4_mlo_maint_flg = 1; | |
2598 | } else if (mb->un.varWords[0] == SETVAR_MLORST) { | |
2599 | phba->link_flag &= ~LS_LOOPBACK_MODE; | |
76a95d75 | 2600 | phba->fc_topology = LPFC_TOPOLOGY_PT_PT; |
e2aed29f JS |
2601 | } |
2602 | break; | |
3b5dd52a | 2603 | case MBX_READ_SPARM64: |
76a95d75 | 2604 | case MBX_READ_TOPOLOGY: |
3b5dd52a JS |
2605 | case MBX_REG_LOGIN: |
2606 | case MBX_REG_LOGIN64: | |
2607 | case MBX_CONFIG_PORT: | |
2608 | case MBX_RUN_BIU_DIAG: | |
2609 | default: | |
2610 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
2611 | "2742 Unknown Command 0x%x\n", | |
2612 | mb->mbxCommand); | |
2613 | return -EPERM; | |
2614 | } | |
2615 | ||
2616 | return 0; /* ok */ | |
2617 | } | |
2618 | ||
2619 | /** | |
2620 | * lpfc_bsg_issue_mbox - issues a mailbox command on behalf of an app | |
2621 | * @phba: Pointer to HBA context object. | |
2622 | * @mb: Pointer to a mailbox object. | |
2623 | * @vport: Pointer to a vport object. | |
2624 | * | |
2625 | * Allocate a tracking object, mailbox command memory, get a mailbox | |
2626 | * from the mailbox pool, copy the caller mailbox command. | |
2627 | * | |
2628 | * If offline and the sli is active we need to poll for the command (port is | |
2629 | * being reset) and com-plete the job, otherwise issue the mailbox command and | |
2630 | * let our completion handler finish the command. | |
2631 | **/ | |
2632 | static uint32_t | |
2633 | lpfc_bsg_issue_mbox(struct lpfc_hba *phba, struct fc_bsg_job *job, | |
2634 | struct lpfc_vport *vport) | |
2635 | { | |
7a470277 JS |
2636 | LPFC_MBOXQ_t *pmboxq = NULL; /* internal mailbox queue */ |
2637 | MAILBOX_t *pmb; /* shortcut to the pmboxq mailbox */ | |
2638 | /* a 4k buffer to hold the mb and extended data from/to the bsg */ | |
2639 | MAILBOX_t *mb = NULL; | |
2640 | struct bsg_job_data *dd_data = NULL; /* bsg data tracking structure */ | |
3b5dd52a | 2641 | uint32_t size; |
7a470277 JS |
2642 | struct lpfc_dmabuf *rxbmp = NULL; /* for biu diag */ |
2643 | struct lpfc_dmabufext *dmp = NULL; /* for biu diag */ | |
2644 | struct ulp_bde64 *rxbpl = NULL; | |
2645 | struct dfc_mbox_req *mbox_req = (struct dfc_mbox_req *) | |
2646 | job->request->rqst_data.h_vendor.vendor_cmd; | |
2647 | uint8_t *ext = NULL; | |
3b5dd52a | 2648 | int rc = 0; |
7a470277 JS |
2649 | uint8_t *from; |
2650 | ||
2651 | /* in case no data is transferred */ | |
2652 | job->reply->reply_payload_rcv_len = 0; | |
2653 | ||
2654 | /* check if requested extended data lengths are valid */ | |
2655 | if ((mbox_req->inExtWLen > MAILBOX_EXT_SIZE) || | |
c7495937 | 2656 | (mbox_req->outExtWLen > MAILBOX_EXT_SIZE)) { |
7a470277 JS |
2657 | rc = -ERANGE; |
2658 | goto job_done; | |
2659 | } | |
3b5dd52a JS |
2660 | |
2661 | /* allocate our bsg tracking structure */ | |
2662 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); | |
2663 | if (!dd_data) { | |
2664 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
2665 | "2727 Failed allocation of dd_data\n"); | |
7a470277 JS |
2666 | rc = -ENOMEM; |
2667 | goto job_done; | |
3b5dd52a JS |
2668 | } |
2669 | ||
49198b37 | 2670 | mb = kzalloc(BSG_MBOX_SIZE, GFP_KERNEL); |
3b5dd52a | 2671 | if (!mb) { |
7a470277 JS |
2672 | rc = -ENOMEM; |
2673 | goto job_done; | |
3b5dd52a JS |
2674 | } |
2675 | ||
2676 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
2677 | if (!pmboxq) { | |
7a470277 JS |
2678 | rc = -ENOMEM; |
2679 | goto job_done; | |
3b5dd52a | 2680 | } |
7a470277 | 2681 | memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); |
3b5dd52a JS |
2682 | |
2683 | size = job->request_payload.payload_len; | |
7a470277 JS |
2684 | sg_copy_to_buffer(job->request_payload.sg_list, |
2685 | job->request_payload.sg_cnt, | |
2686 | mb, size); | |
3b5dd52a JS |
2687 | |
2688 | rc = lpfc_bsg_check_cmd_access(phba, mb, vport); | |
7a470277 JS |
2689 | if (rc != 0) |
2690 | goto job_done; /* must be negative */ | |
3b5dd52a | 2691 | |
3b5dd52a JS |
2692 | pmb = &pmboxq->u.mb; |
2693 | memcpy(pmb, mb, sizeof(*pmb)); | |
2694 | pmb->mbxOwner = OWN_HOST; | |
3b5dd52a JS |
2695 | pmboxq->vport = vport; |
2696 | ||
c7495937 JS |
2697 | /* If HBA encountered an error attention, allow only DUMP |
2698 | * or RESTART mailbox commands until the HBA is restarted. | |
2699 | */ | |
2700 | if (phba->pport->stopped && | |
2701 | pmb->mbxCommand != MBX_DUMP_MEMORY && | |
2702 | pmb->mbxCommand != MBX_RESTART && | |
2703 | pmb->mbxCommand != MBX_WRITE_VPARMS && | |
2704 | pmb->mbxCommand != MBX_WRITE_WWN) | |
2705 | lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, | |
2706 | "2797 mbox: Issued mailbox cmd " | |
2707 | "0x%x while in stopped state.\n", | |
2708 | pmb->mbxCommand); | |
2709 | ||
2710 | /* Don't allow mailbox commands to be sent when blocked | |
2711 | * or when in the middle of discovery | |
2712 | */ | |
2713 | if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) { | |
2714 | rc = -EAGAIN; | |
2715 | goto job_done; | |
2716 | } | |
2717 | ||
7a470277 | 2718 | /* extended mailbox commands will need an extended buffer */ |
c7495937 | 2719 | if (mbox_req->inExtWLen || mbox_req->outExtWLen) { |
7a470277 JS |
2720 | ext = kzalloc(MAILBOX_EXT_SIZE, GFP_KERNEL); |
2721 | if (!ext) { | |
2722 | rc = -ENOMEM; | |
2723 | goto job_done; | |
2724 | } | |
2725 | ||
2726 | /* any data for the device? */ | |
2727 | if (mbox_req->inExtWLen) { | |
2728 | from = (uint8_t *)mb; | |
2729 | from += sizeof(MAILBOX_t); | |
2730 | memcpy((uint8_t *)ext, from, | |
2731 | mbox_req->inExtWLen * sizeof(uint32_t)); | |
2732 | } | |
2733 | ||
7a470277 JS |
2734 | pmboxq->context2 = ext; |
2735 | pmboxq->in_ext_byte_len = | |
2736 | mbox_req->inExtWLen * sizeof(uint32_t); | |
2737 | pmboxq->out_ext_byte_len = | |
c7495937 | 2738 | mbox_req->outExtWLen * sizeof(uint32_t); |
7a470277 JS |
2739 | pmboxq->mbox_offset_word = mbox_req->mbOffset; |
2740 | } | |
2741 | ||
2742 | /* biu diag will need a kernel buffer to transfer the data | |
2743 | * allocate our own buffer and setup the mailbox command to | |
2744 | * use ours | |
2745 | */ | |
2746 | if (pmb->mbxCommand == MBX_RUN_BIU_DIAG64) { | |
c7495937 JS |
2747 | uint32_t transmit_length = pmb->un.varWords[1]; |
2748 | uint32_t receive_length = pmb->un.varWords[4]; | |
2749 | /* transmit length cannot be greater than receive length or | |
2750 | * mailbox extension size | |
2751 | */ | |
2752 | if ((transmit_length > receive_length) || | |
2753 | (transmit_length > MAILBOX_EXT_SIZE)) { | |
2754 | rc = -ERANGE; | |
2755 | goto job_done; | |
2756 | } | |
2757 | ||
7a470277 JS |
2758 | rxbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
2759 | if (!rxbmp) { | |
2760 | rc = -ENOMEM; | |
2761 | goto job_done; | |
2762 | } | |
2763 | ||
2764 | rxbmp->virt = lpfc_mbuf_alloc(phba, 0, &rxbmp->phys); | |
c7495937 JS |
2765 | if (!rxbmp->virt) { |
2766 | rc = -ENOMEM; | |
2767 | goto job_done; | |
2768 | } | |
2769 | ||
7a470277 JS |
2770 | INIT_LIST_HEAD(&rxbmp->list); |
2771 | rxbpl = (struct ulp_bde64 *) rxbmp->virt; | |
c7495937 | 2772 | dmp = diag_cmd_data_alloc(phba, rxbpl, transmit_length, 0); |
7a470277 JS |
2773 | if (!dmp) { |
2774 | rc = -ENOMEM; | |
2775 | goto job_done; | |
2776 | } | |
2777 | ||
7a470277 JS |
2778 | INIT_LIST_HEAD(&dmp->dma.list); |
2779 | pmb->un.varBIUdiag.un.s2.xmit_bde64.addrHigh = | |
2780 | putPaddrHigh(dmp->dma.phys); | |
2781 | pmb->un.varBIUdiag.un.s2.xmit_bde64.addrLow = | |
2782 | putPaddrLow(dmp->dma.phys); | |
2783 | ||
2784 | pmb->un.varBIUdiag.un.s2.rcv_bde64.addrHigh = | |
2785 | putPaddrHigh(dmp->dma.phys + | |
2786 | pmb->un.varBIUdiag.un.s2. | |
2787 | xmit_bde64.tus.f.bdeSize); | |
2788 | pmb->un.varBIUdiag.un.s2.rcv_bde64.addrLow = | |
2789 | putPaddrLow(dmp->dma.phys + | |
2790 | pmb->un.varBIUdiag.un.s2. | |
2791 | xmit_bde64.tus.f.bdeSize); | |
c7495937 JS |
2792 | |
2793 | /* copy the transmit data found in the mailbox extension area */ | |
2794 | from = (uint8_t *)mb; | |
2795 | from += sizeof(MAILBOX_t); | |
2796 | memcpy((uint8_t *)dmp->dma.virt, from, transmit_length); | |
2797 | } else if (pmb->mbxCommand == MBX_READ_EVENT_LOG) { | |
2798 | struct READ_EVENT_LOG_VAR *rdEventLog = | |
2799 | &pmb->un.varRdEventLog ; | |
2800 | uint32_t receive_length = rdEventLog->rcv_bde64.tus.f.bdeSize; | |
2801 | uint32_t mode = bf_get(lpfc_event_log, rdEventLog); | |
2802 | ||
2803 | /* receive length cannot be greater than mailbox | |
2804 | * extension size | |
2805 | */ | |
2806 | if (receive_length > MAILBOX_EXT_SIZE) { | |
2807 | rc = -ERANGE; | |
2808 | goto job_done; | |
2809 | } | |
2810 | ||
2811 | /* mode zero uses a bde like biu diags command */ | |
2812 | if (mode == 0) { | |
2813 | ||
2814 | /* rebuild the command for sli4 using our own buffers | |
2815 | * like we do for biu diags | |
2816 | */ | |
2817 | ||
2818 | rxbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
2819 | if (!rxbmp) { | |
2820 | rc = -ENOMEM; | |
2821 | goto job_done; | |
2822 | } | |
2823 | ||
2824 | rxbmp->virt = lpfc_mbuf_alloc(phba, 0, &rxbmp->phys); | |
2825 | rxbpl = (struct ulp_bde64 *) rxbmp->virt; | |
2826 | if (rxbpl) { | |
2827 | INIT_LIST_HEAD(&rxbmp->list); | |
2828 | dmp = diag_cmd_data_alloc(phba, rxbpl, | |
2829 | receive_length, 0); | |
2830 | } | |
2831 | ||
2832 | if (!dmp) { | |
2833 | rc = -ENOMEM; | |
2834 | goto job_done; | |
2835 | } | |
2836 | ||
2837 | INIT_LIST_HEAD(&dmp->dma.list); | |
2838 | pmb->un.varWords[3] = putPaddrLow(dmp->dma.phys); | |
2839 | pmb->un.varWords[4] = putPaddrHigh(dmp->dma.phys); | |
2840 | } | |
2841 | } else if (phba->sli_rev == LPFC_SLI_REV4) { | |
2842 | if (pmb->mbxCommand == MBX_DUMP_MEMORY) { | |
2843 | /* rebuild the command for sli4 using our own buffers | |
2844 | * like we do for biu diags | |
2845 | */ | |
2846 | uint32_t receive_length = pmb->un.varWords[2]; | |
2847 | /* receive length cannot be greater than mailbox | |
2848 | * extension size | |
2849 | */ | |
2850 | if ((receive_length == 0) || | |
2851 | (receive_length > MAILBOX_EXT_SIZE)) { | |
2852 | rc = -ERANGE; | |
2853 | goto job_done; | |
2854 | } | |
2855 | ||
2856 | rxbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
2857 | if (!rxbmp) { | |
2858 | rc = -ENOMEM; | |
2859 | goto job_done; | |
2860 | } | |
2861 | ||
2862 | rxbmp->virt = lpfc_mbuf_alloc(phba, 0, &rxbmp->phys); | |
2863 | if (!rxbmp->virt) { | |
2864 | rc = -ENOMEM; | |
2865 | goto job_done; | |
2866 | } | |
2867 | ||
2868 | INIT_LIST_HEAD(&rxbmp->list); | |
2869 | rxbpl = (struct ulp_bde64 *) rxbmp->virt; | |
2870 | dmp = diag_cmd_data_alloc(phba, rxbpl, receive_length, | |
2871 | 0); | |
2872 | if (!dmp) { | |
2873 | rc = -ENOMEM; | |
2874 | goto job_done; | |
2875 | } | |
2876 | ||
2877 | INIT_LIST_HEAD(&dmp->dma.list); | |
2878 | pmb->un.varWords[3] = putPaddrLow(dmp->dma.phys); | |
2879 | pmb->un.varWords[4] = putPaddrHigh(dmp->dma.phys); | |
2880 | } else if ((pmb->mbxCommand == MBX_UPDATE_CFG) && | |
2881 | pmb->un.varUpdateCfg.co) { | |
2882 | struct ulp_bde64 *bde = | |
2883 | (struct ulp_bde64 *)&pmb->un.varWords[4]; | |
2884 | ||
2885 | /* bde size cannot be greater than mailbox ext size */ | |
2886 | if (bde->tus.f.bdeSize > MAILBOX_EXT_SIZE) { | |
2887 | rc = -ERANGE; | |
2888 | goto job_done; | |
2889 | } | |
2890 | ||
2891 | rxbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
2892 | if (!rxbmp) { | |
2893 | rc = -ENOMEM; | |
2894 | goto job_done; | |
2895 | } | |
2896 | ||
2897 | rxbmp->virt = lpfc_mbuf_alloc(phba, 0, &rxbmp->phys); | |
2898 | if (!rxbmp->virt) { | |
2899 | rc = -ENOMEM; | |
2900 | goto job_done; | |
2901 | } | |
2902 | ||
2903 | INIT_LIST_HEAD(&rxbmp->list); | |
2904 | rxbpl = (struct ulp_bde64 *) rxbmp->virt; | |
2905 | dmp = diag_cmd_data_alloc(phba, rxbpl, | |
2906 | bde->tus.f.bdeSize, 0); | |
2907 | if (!dmp) { | |
2908 | rc = -ENOMEM; | |
2909 | goto job_done; | |
2910 | } | |
2911 | ||
2912 | INIT_LIST_HEAD(&dmp->dma.list); | |
2913 | bde->addrHigh = putPaddrHigh(dmp->dma.phys); | |
2914 | bde->addrLow = putPaddrLow(dmp->dma.phys); | |
2915 | ||
2916 | /* copy the transmit data found in the mailbox | |
2917 | * extension area | |
2918 | */ | |
2919 | from = (uint8_t *)mb; | |
2920 | from += sizeof(MAILBOX_t); | |
2921 | memcpy((uint8_t *)dmp->dma.virt, from, | |
2922 | bde->tus.f.bdeSize); | |
515e0aa2 JS |
2923 | } else if (pmb->mbxCommand == MBX_SLI4_CONFIG) { |
2924 | struct lpfc_mbx_nembed_cmd *nembed_sge; | |
2925 | struct mbox_header *header; | |
2926 | uint32_t receive_length; | |
2927 | ||
2928 | /* rebuild the command for sli4 using our own buffers | |
2929 | * like we do for biu diags | |
2930 | */ | |
2931 | header = (struct mbox_header *)&pmb->un.varWords[0]; | |
2932 | nembed_sge = (struct lpfc_mbx_nembed_cmd *) | |
2933 | &pmb->un.varWords[0]; | |
2934 | receive_length = nembed_sge->sge[0].length; | |
2935 | ||
2936 | /* receive length cannot be greater than mailbox | |
2937 | * extension size | |
2938 | */ | |
2939 | if ((receive_length == 0) || | |
2940 | (receive_length > MAILBOX_EXT_SIZE)) { | |
2941 | rc = -ERANGE; | |
2942 | goto job_done; | |
2943 | } | |
2944 | ||
2945 | rxbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
2946 | if (!rxbmp) { | |
2947 | rc = -ENOMEM; | |
2948 | goto job_done; | |
2949 | } | |
2950 | ||
2951 | rxbmp->virt = lpfc_mbuf_alloc(phba, 0, &rxbmp->phys); | |
2952 | if (!rxbmp->virt) { | |
2953 | rc = -ENOMEM; | |
2954 | goto job_done; | |
2955 | } | |
2956 | ||
2957 | INIT_LIST_HEAD(&rxbmp->list); | |
2958 | rxbpl = (struct ulp_bde64 *) rxbmp->virt; | |
2959 | dmp = diag_cmd_data_alloc(phba, rxbpl, receive_length, | |
2960 | 0); | |
2961 | if (!dmp) { | |
2962 | rc = -ENOMEM; | |
2963 | goto job_done; | |
2964 | } | |
2965 | ||
2966 | INIT_LIST_HEAD(&dmp->dma.list); | |
2967 | nembed_sge->sge[0].pa_hi = putPaddrHigh(dmp->dma.phys); | |
2968 | nembed_sge->sge[0].pa_lo = putPaddrLow(dmp->dma.phys); | |
2969 | /* copy the transmit data found in the mailbox | |
2970 | * extension area | |
2971 | */ | |
2972 | from = (uint8_t *)mb; | |
2973 | from += sizeof(MAILBOX_t); | |
2974 | memcpy((uint8_t *)dmp->dma.virt, from, | |
2975 | header->cfg_mhdr.payload_length); | |
c7495937 | 2976 | } |
7a470277 JS |
2977 | } |
2978 | ||
c7495937 JS |
2979 | dd_data->context_un.mbox.rxbmp = rxbmp; |
2980 | dd_data->context_un.mbox.dmp = dmp; | |
2981 | ||
7a470277 JS |
2982 | /* setup wake call as IOCB callback */ |
2983 | pmboxq->mbox_cmpl = lpfc_bsg_wake_mbox_wait; | |
2984 | ||
2985 | /* setup context field to pass wait_queue pointer to wake function */ | |
2986 | pmboxq->context1 = dd_data; | |
2987 | dd_data->type = TYPE_MBOX; | |
2988 | dd_data->context_un.mbox.pmboxq = pmboxq; | |
2989 | dd_data->context_un.mbox.mb = mb; | |
2990 | dd_data->context_un.mbox.set_job = job; | |
2991 | dd_data->context_un.mbox.ext = ext; | |
2992 | dd_data->context_un.mbox.mbOffset = mbox_req->mbOffset; | |
2993 | dd_data->context_un.mbox.inExtWLen = mbox_req->inExtWLen; | |
c7495937 | 2994 | dd_data->context_un.mbox.outExtWLen = mbox_req->outExtWLen; |
7a470277 JS |
2995 | job->dd_data = dd_data; |
2996 | ||
3b5dd52a JS |
2997 | if ((vport->fc_flag & FC_OFFLINE_MODE) || |
2998 | (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE))) { | |
2999 | rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); | |
3000 | if (rc != MBX_SUCCESS) { | |
7a470277 JS |
3001 | rc = (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV; |
3002 | goto job_done; | |
3b5dd52a JS |
3003 | } |
3004 | ||
7a470277 | 3005 | /* job finished, copy the data */ |
3b5dd52a JS |
3006 | memcpy(mb, pmb, sizeof(*pmb)); |
3007 | job->reply->reply_payload_rcv_len = | |
3008 | sg_copy_from_buffer(job->reply_payload.sg_list, | |
3009 | job->reply_payload.sg_cnt, | |
3010 | mb, size); | |
3b5dd52a | 3011 | /* not waiting mbox already done */ |
7a470277 JS |
3012 | rc = 0; |
3013 | goto job_done; | |
3b5dd52a JS |
3014 | } |
3015 | ||
3b5dd52a | 3016 | rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); |
7a470277 JS |
3017 | if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY)) |
3018 | return 1; /* job started */ | |
3019 | ||
3020 | job_done: | |
3021 | /* common exit for error or job completed inline */ | |
3022 | kfree(mb); | |
3023 | if (pmboxq) | |
3b5dd52a | 3024 | mempool_free(pmboxq, phba->mbox_mem_pool); |
7a470277 JS |
3025 | kfree(ext); |
3026 | if (dmp) { | |
3027 | dma_free_coherent(&phba->pcidev->dev, | |
3028 | dmp->size, dmp->dma.virt, | |
3029 | dmp->dma.phys); | |
3030 | kfree(dmp); | |
3031 | } | |
3032 | if (rxbmp) { | |
3033 | lpfc_mbuf_free(phba, rxbmp->virt, rxbmp->phys); | |
3034 | kfree(rxbmp); | |
3b5dd52a | 3035 | } |
7a470277 | 3036 | kfree(dd_data); |
3b5dd52a | 3037 | |
7a470277 | 3038 | return rc; |
3b5dd52a JS |
3039 | } |
3040 | ||
3041 | /** | |
3042 | * lpfc_bsg_mbox_cmd - process an fc bsg LPFC_BSG_VENDOR_MBOX command | |
3043 | * @job: MBOX fc_bsg_job for LPFC_BSG_VENDOR_MBOX. | |
3044 | **/ | |
3045 | static int | |
3046 | lpfc_bsg_mbox_cmd(struct fc_bsg_job *job) | |
3047 | { | |
3048 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
3049 | struct lpfc_hba *phba = vport->phba; | |
3050 | int rc = 0; | |
3051 | ||
3052 | /* in case no data is transferred */ | |
3053 | job->reply->reply_payload_rcv_len = 0; | |
3054 | if (job->request_len < | |
3055 | sizeof(struct fc_bsg_request) + sizeof(struct dfc_mbox_req)) { | |
3056 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
3057 | "2737 Received MBOX_REQ request below " | |
3058 | "minimum size\n"); | |
3059 | rc = -EINVAL; | |
3060 | goto job_error; | |
3061 | } | |
3062 | ||
49198b37 | 3063 | if (job->request_payload.payload_len != BSG_MBOX_SIZE) { |
3b5dd52a JS |
3064 | rc = -EINVAL; |
3065 | goto job_error; | |
3066 | } | |
3067 | ||
49198b37 | 3068 | if (job->reply_payload.payload_len != BSG_MBOX_SIZE) { |
7a470277 JS |
3069 | rc = -EINVAL; |
3070 | goto job_error; | |
3071 | } | |
3072 | ||
3b5dd52a JS |
3073 | if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) { |
3074 | rc = -EAGAIN; | |
3075 | goto job_error; | |
3076 | } | |
3077 | ||
3078 | rc = lpfc_bsg_issue_mbox(phba, job, vport); | |
3079 | ||
3080 | job_error: | |
3081 | if (rc == 0) { | |
3082 | /* job done */ | |
3083 | job->reply->result = 0; | |
3084 | job->dd_data = NULL; | |
3085 | job->job_done(job); | |
3086 | } else if (rc == 1) | |
3087 | /* job submitted, will complete later*/ | |
3088 | rc = 0; /* return zero, no error */ | |
3089 | else { | |
3090 | /* some error occurred */ | |
3091 | job->reply->result = rc; | |
3092 | job->dd_data = NULL; | |
3093 | } | |
3094 | ||
3095 | return rc; | |
3096 | } | |
3097 | ||
e2aed29f JS |
3098 | /** |
3099 | * lpfc_bsg_menlo_cmd_cmp - lpfc_menlo_cmd completion handler | |
3100 | * @phba: Pointer to HBA context object. | |
3101 | * @cmdiocbq: Pointer to command iocb. | |
3102 | * @rspiocbq: Pointer to response iocb. | |
3103 | * | |
3104 | * This function is the completion handler for iocbs issued using | |
3105 | * lpfc_menlo_cmd function. This function is called by the | |
3106 | * ring event handler function without any lock held. This function | |
3107 | * can be called from both worker thread context and interrupt | |
3108 | * context. This function also can be called from another thread which | |
3109 | * cleans up the SLI layer objects. | |
3110 | * This function copies the contents of the response iocb to the | |
3111 | * response iocb memory object provided by the caller of | |
3112 | * lpfc_sli_issue_iocb_wait and then wakes up the thread which | |
3113 | * sleeps for the iocb completion. | |
3114 | **/ | |
3115 | static void | |
3116 | lpfc_bsg_menlo_cmd_cmp(struct lpfc_hba *phba, | |
3117 | struct lpfc_iocbq *cmdiocbq, | |
3118 | struct lpfc_iocbq *rspiocbq) | |
3119 | { | |
3120 | struct bsg_job_data *dd_data; | |
3121 | struct fc_bsg_job *job; | |
3122 | IOCB_t *rsp; | |
3123 | struct lpfc_dmabuf *bmp; | |
3124 | struct lpfc_bsg_menlo *menlo; | |
3125 | unsigned long flags; | |
3126 | struct menlo_response *menlo_resp; | |
3127 | int rc = 0; | |
3128 | ||
3129 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
3130 | dd_data = cmdiocbq->context1; | |
3131 | if (!dd_data) { | |
3132 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
3133 | return; | |
3134 | } | |
3135 | ||
3136 | menlo = &dd_data->context_un.menlo; | |
3137 | job = menlo->set_job; | |
3138 | job->dd_data = NULL; /* so timeout handler does not reply */ | |
3139 | ||
5989b8d4 | 3140 | spin_lock(&phba->hbalock); |
e2aed29f JS |
3141 | cmdiocbq->iocb_flag |= LPFC_IO_WAKE; |
3142 | if (cmdiocbq->context2 && rspiocbq) | |
3143 | memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb, | |
3144 | &rspiocbq->iocb, sizeof(IOCB_t)); | |
5989b8d4 | 3145 | spin_unlock(&phba->hbalock); |
e2aed29f JS |
3146 | |
3147 | bmp = menlo->bmp; | |
3148 | rspiocbq = menlo->rspiocbq; | |
3149 | rsp = &rspiocbq->iocb; | |
3150 | ||
3151 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, | |
3152 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
3153 | pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list, | |
3154 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); | |
3155 | ||
3156 | /* always return the xri, this would be used in the case | |
3157 | * of a menlo download to allow the data to be sent as a continuation | |
3158 | * of the exchange. | |
3159 | */ | |
3160 | menlo_resp = (struct menlo_response *) | |
3161 | job->reply->reply_data.vendor_reply.vendor_rsp; | |
3162 | menlo_resp->xri = rsp->ulpContext; | |
3163 | if (rsp->ulpStatus) { | |
3164 | if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) { | |
3165 | switch (rsp->un.ulpWord[4] & 0xff) { | |
3166 | case IOERR_SEQUENCE_TIMEOUT: | |
3167 | rc = -ETIMEDOUT; | |
3168 | break; | |
3169 | case IOERR_INVALID_RPI: | |
3170 | rc = -EFAULT; | |
3171 | break; | |
3172 | default: | |
3173 | rc = -EACCES; | |
3174 | break; | |
3175 | } | |
3176 | } else | |
3177 | rc = -EACCES; | |
3178 | } else | |
3179 | job->reply->reply_payload_rcv_len = | |
3180 | rsp->un.genreq64.bdl.bdeSize; | |
3181 | ||
3182 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); | |
3183 | lpfc_sli_release_iocbq(phba, rspiocbq); | |
3184 | lpfc_sli_release_iocbq(phba, cmdiocbq); | |
3185 | kfree(bmp); | |
3186 | kfree(dd_data); | |
3187 | /* make error code available to userspace */ | |
3188 | job->reply->result = rc; | |
3189 | /* complete the job back to userspace */ | |
3190 | job->job_done(job); | |
3191 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
3192 | return; | |
3193 | } | |
3194 | ||
3195 | /** | |
3196 | * lpfc_menlo_cmd - send an ioctl for menlo hardware | |
3197 | * @job: fc_bsg_job to handle | |
3198 | * | |
3199 | * This function issues a gen request 64 CR ioctl for all menlo cmd requests, | |
3200 | * all the command completions will return the xri for the command. | |
3201 | * For menlo data requests a gen request 64 CX is used to continue the exchange | |
3202 | * supplied in the menlo request header xri field. | |
3203 | **/ | |
3204 | static int | |
3205 | lpfc_menlo_cmd(struct fc_bsg_job *job) | |
3206 | { | |
3207 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
3208 | struct lpfc_hba *phba = vport->phba; | |
3209 | struct lpfc_iocbq *cmdiocbq, *rspiocbq; | |
3210 | IOCB_t *cmd, *rsp; | |
3211 | int rc = 0; | |
3212 | struct menlo_command *menlo_cmd; | |
3213 | struct menlo_response *menlo_resp; | |
3214 | struct lpfc_dmabuf *bmp = NULL; | |
3215 | int request_nseg; | |
3216 | int reply_nseg; | |
3217 | struct scatterlist *sgel = NULL; | |
3218 | int numbde; | |
3219 | dma_addr_t busaddr; | |
3220 | struct bsg_job_data *dd_data; | |
3221 | struct ulp_bde64 *bpl = NULL; | |
3222 | ||
3223 | /* in case no data is returned return just the return code */ | |
3224 | job->reply->reply_payload_rcv_len = 0; | |
3225 | ||
3226 | if (job->request_len < | |
3227 | sizeof(struct fc_bsg_request) + | |
3228 | sizeof(struct menlo_command)) { | |
3229 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
3230 | "2784 Received MENLO_CMD request below " | |
3231 | "minimum size\n"); | |
3232 | rc = -ERANGE; | |
3233 | goto no_dd_data; | |
3234 | } | |
3235 | ||
3236 | if (job->reply_len < | |
3237 | sizeof(struct fc_bsg_request) + sizeof(struct menlo_response)) { | |
3238 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
3239 | "2785 Received MENLO_CMD reply below " | |
3240 | "minimum size\n"); | |
3241 | rc = -ERANGE; | |
3242 | goto no_dd_data; | |
3243 | } | |
3244 | ||
3245 | if (!(phba->menlo_flag & HBA_MENLO_SUPPORT)) { | |
3246 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
3247 | "2786 Adapter does not support menlo " | |
3248 | "commands\n"); | |
3249 | rc = -EPERM; | |
3250 | goto no_dd_data; | |
3251 | } | |
3252 | ||
3253 | menlo_cmd = (struct menlo_command *) | |
3254 | job->request->rqst_data.h_vendor.vendor_cmd; | |
3255 | ||
3256 | menlo_resp = (struct menlo_response *) | |
3257 | job->reply->reply_data.vendor_reply.vendor_rsp; | |
3258 | ||
3259 | /* allocate our bsg tracking structure */ | |
3260 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); | |
3261 | if (!dd_data) { | |
3262 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
3263 | "2787 Failed allocation of dd_data\n"); | |
3264 | rc = -ENOMEM; | |
3265 | goto no_dd_data; | |
3266 | } | |
3267 | ||
3268 | bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
3269 | if (!bmp) { | |
3270 | rc = -ENOMEM; | |
3271 | goto free_dd; | |
3272 | } | |
3273 | ||
3274 | cmdiocbq = lpfc_sli_get_iocbq(phba); | |
3275 | if (!cmdiocbq) { | |
3276 | rc = -ENOMEM; | |
3277 | goto free_bmp; | |
3278 | } | |
3279 | ||
3280 | rspiocbq = lpfc_sli_get_iocbq(phba); | |
3281 | if (!rspiocbq) { | |
3282 | rc = -ENOMEM; | |
3283 | goto free_cmdiocbq; | |
3284 | } | |
3285 | ||
3286 | rsp = &rspiocbq->iocb; | |
3287 | ||
3288 | bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys); | |
3289 | if (!bmp->virt) { | |
3290 | rc = -ENOMEM; | |
3291 | goto free_rspiocbq; | |
3292 | } | |
3293 | ||
3294 | INIT_LIST_HEAD(&bmp->list); | |
3295 | bpl = (struct ulp_bde64 *) bmp->virt; | |
3296 | request_nseg = pci_map_sg(phba->pcidev, job->request_payload.sg_list, | |
3297 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
3298 | for_each_sg(job->request_payload.sg_list, sgel, request_nseg, numbde) { | |
3299 | busaddr = sg_dma_address(sgel); | |
3300 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
3301 | bpl->tus.f.bdeSize = sg_dma_len(sgel); | |
3302 | bpl->tus.w = cpu_to_le32(bpl->tus.w); | |
3303 | bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr)); | |
3304 | bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr)); | |
3305 | bpl++; | |
3306 | } | |
3307 | ||
3308 | reply_nseg = pci_map_sg(phba->pcidev, job->reply_payload.sg_list, | |
3309 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); | |
3310 | for_each_sg(job->reply_payload.sg_list, sgel, reply_nseg, numbde) { | |
3311 | busaddr = sg_dma_address(sgel); | |
3312 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; | |
3313 | bpl->tus.f.bdeSize = sg_dma_len(sgel); | |
3314 | bpl->tus.w = cpu_to_le32(bpl->tus.w); | |
3315 | bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr)); | |
3316 | bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr)); | |
3317 | bpl++; | |
3318 | } | |
3319 | ||
3320 | cmd = &cmdiocbq->iocb; | |
3321 | cmd->un.genreq64.bdl.ulpIoTag32 = 0; | |
3322 | cmd->un.genreq64.bdl.addrHigh = putPaddrHigh(bmp->phys); | |
3323 | cmd->un.genreq64.bdl.addrLow = putPaddrLow(bmp->phys); | |
3324 | cmd->un.genreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; | |
3325 | cmd->un.genreq64.bdl.bdeSize = | |
3326 | (request_nseg + reply_nseg) * sizeof(struct ulp_bde64); | |
3327 | cmd->un.genreq64.w5.hcsw.Fctl = (SI | LA); | |
3328 | cmd->un.genreq64.w5.hcsw.Dfctl = 0; | |
3329 | cmd->un.genreq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CMD; | |
3330 | cmd->un.genreq64.w5.hcsw.Type = MENLO_TRANSPORT_TYPE; /* 0xfe */ | |
3331 | cmd->ulpBdeCount = 1; | |
3332 | cmd->ulpClass = CLASS3; | |
3333 | cmd->ulpOwner = OWN_CHIP; | |
3334 | cmd->ulpLe = 1; /* Limited Edition */ | |
3335 | cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC; | |
3336 | cmdiocbq->vport = phba->pport; | |
3337 | /* We want the firmware to timeout before we do */ | |
3338 | cmd->ulpTimeout = MENLO_TIMEOUT - 5; | |
3339 | cmdiocbq->context3 = bmp; | |
3340 | cmdiocbq->context2 = rspiocbq; | |
3341 | cmdiocbq->iocb_cmpl = lpfc_bsg_menlo_cmd_cmp; | |
3342 | cmdiocbq->context1 = dd_data; | |
3343 | cmdiocbq->context2 = rspiocbq; | |
3344 | if (menlo_cmd->cmd == LPFC_BSG_VENDOR_MENLO_CMD) { | |
3345 | cmd->ulpCommand = CMD_GEN_REQUEST64_CR; | |
3346 | cmd->ulpPU = MENLO_PU; /* 3 */ | |
3347 | cmd->un.ulpWord[4] = MENLO_DID; /* 0x0000FC0E */ | |
3348 | cmd->ulpContext = MENLO_CONTEXT; /* 0 */ | |
3349 | } else { | |
3350 | cmd->ulpCommand = CMD_GEN_REQUEST64_CX; | |
3351 | cmd->ulpPU = 1; | |
3352 | cmd->un.ulpWord[4] = 0; | |
3353 | cmd->ulpContext = menlo_cmd->xri; | |
3354 | } | |
3355 | ||
3356 | dd_data->type = TYPE_MENLO; | |
3357 | dd_data->context_un.menlo.cmdiocbq = cmdiocbq; | |
3358 | dd_data->context_un.menlo.rspiocbq = rspiocbq; | |
3359 | dd_data->context_un.menlo.set_job = job; | |
3360 | dd_data->context_un.menlo.bmp = bmp; | |
3361 | ||
3362 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, | |
3363 | MENLO_TIMEOUT - 5); | |
3364 | if (rc == IOCB_SUCCESS) | |
3365 | return 0; /* done for now */ | |
3366 | ||
3367 | /* iocb failed so cleanup */ | |
3368 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, | |
3369 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
3370 | pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list, | |
3371 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); | |
3372 | ||
3373 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); | |
3374 | ||
3375 | free_rspiocbq: | |
3376 | lpfc_sli_release_iocbq(phba, rspiocbq); | |
3377 | free_cmdiocbq: | |
3378 | lpfc_sli_release_iocbq(phba, cmdiocbq); | |
3379 | free_bmp: | |
3380 | kfree(bmp); | |
3381 | free_dd: | |
3382 | kfree(dd_data); | |
3383 | no_dd_data: | |
3384 | /* make error code available to userspace */ | |
3385 | job->reply->result = rc; | |
3386 | job->dd_data = NULL; | |
3387 | return rc; | |
3388 | } | |
3b5dd52a JS |
3389 | /** |
3390 | * lpfc_bsg_hst_vendor - process a vendor-specific fc_bsg_job | |
3391 | * @job: fc_bsg_job to handle | |
3392 | **/ | |
3393 | static int | |
3394 | lpfc_bsg_hst_vendor(struct fc_bsg_job *job) | |
3395 | { | |
3396 | int command = job->request->rqst_data.h_vendor.vendor_cmd[0]; | |
3397 | int rc; | |
3398 | ||
3399 | switch (command) { | |
3400 | case LPFC_BSG_VENDOR_SET_CT_EVENT: | |
3401 | rc = lpfc_bsg_hba_set_event(job); | |
3402 | break; | |
3403 | case LPFC_BSG_VENDOR_GET_CT_EVENT: | |
3404 | rc = lpfc_bsg_hba_get_event(job); | |
3405 | break; | |
3406 | case LPFC_BSG_VENDOR_SEND_MGMT_RESP: | |
3407 | rc = lpfc_bsg_send_mgmt_rsp(job); | |
3408 | break; | |
3409 | case LPFC_BSG_VENDOR_DIAG_MODE: | |
3410 | rc = lpfc_bsg_diag_mode(job); | |
3411 | break; | |
3412 | case LPFC_BSG_VENDOR_DIAG_TEST: | |
3413 | rc = lpfc_bsg_diag_test(job); | |
3414 | break; | |
3415 | case LPFC_BSG_VENDOR_GET_MGMT_REV: | |
3416 | rc = lpfc_bsg_get_dfc_rev(job); | |
3417 | break; | |
3418 | case LPFC_BSG_VENDOR_MBOX: | |
3419 | rc = lpfc_bsg_mbox_cmd(job); | |
3420 | break; | |
e2aed29f JS |
3421 | case LPFC_BSG_VENDOR_MENLO_CMD: |
3422 | case LPFC_BSG_VENDOR_MENLO_DATA: | |
3423 | rc = lpfc_menlo_cmd(job); | |
3424 | break; | |
3b5dd52a JS |
3425 | default: |
3426 | rc = -EINVAL; | |
3427 | job->reply->reply_payload_rcv_len = 0; | |
3428 | /* make error code available to userspace */ | |
3429 | job->reply->result = rc; | |
3430 | break; | |
3431 | } | |
3432 | ||
3433 | return rc; | |
3434 | } | |
3435 | ||
3436 | /** | |
3437 | * lpfc_bsg_request - handle a bsg request from the FC transport | |
3438 | * @job: fc_bsg_job to handle | |
3439 | **/ | |
3440 | int | |
3441 | lpfc_bsg_request(struct fc_bsg_job *job) | |
3442 | { | |
3443 | uint32_t msgcode; | |
3444 | int rc; | |
3445 | ||
3446 | msgcode = job->request->msgcode; | |
3447 | switch (msgcode) { | |
3448 | case FC_BSG_HST_VENDOR: | |
3449 | rc = lpfc_bsg_hst_vendor(job); | |
3450 | break; | |
3451 | case FC_BSG_RPT_ELS: | |
3452 | rc = lpfc_bsg_rport_els(job); | |
3453 | break; | |
3454 | case FC_BSG_RPT_CT: | |
3455 | rc = lpfc_bsg_send_mgmt_cmd(job); | |
3456 | break; | |
3457 | default: | |
3458 | rc = -EINVAL; | |
3459 | job->reply->reply_payload_rcv_len = 0; | |
3460 | /* make error code available to userspace */ | |
3461 | job->reply->result = rc; | |
3462 | break; | |
3463 | } | |
3464 | ||
3465 | return rc; | |
3466 | } | |
3467 | ||
3468 | /** | |
3469 | * lpfc_bsg_timeout - handle timeout of a bsg request from the FC transport | |
3470 | * @job: fc_bsg_job that has timed out | |
3471 | * | |
3472 | * This function just aborts the job's IOCB. The aborted IOCB will return to | |
3473 | * the waiting function which will handle passing the error back to userspace | |
3474 | **/ | |
3475 | int | |
3476 | lpfc_bsg_timeout(struct fc_bsg_job *job) | |
3477 | { | |
3478 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
3479 | struct lpfc_hba *phba = vport->phba; | |
3480 | struct lpfc_iocbq *cmdiocb; | |
3481 | struct lpfc_bsg_event *evt; | |
3482 | struct lpfc_bsg_iocb *iocb; | |
3483 | struct lpfc_bsg_mbox *mbox; | |
e2aed29f | 3484 | struct lpfc_bsg_menlo *menlo; |
3b5dd52a JS |
3485 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; |
3486 | struct bsg_job_data *dd_data; | |
3487 | unsigned long flags; | |
3488 | ||
3489 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
3490 | dd_data = (struct bsg_job_data *)job->dd_data; | |
3491 | /* timeout and completion crossed paths if no dd_data */ | |
3492 | if (!dd_data) { | |
3493 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
3494 | return 0; | |
4cc0e56e JS |
3495 | } |
3496 | ||
3497 | switch (dd_data->type) { | |
3498 | case TYPE_IOCB: | |
3499 | iocb = &dd_data->context_un.iocb; | |
3500 | cmdiocb = iocb->cmdiocbq; | |
3501 | /* hint to completion handler that the job timed out */ | |
3502 | job->reply->result = -EAGAIN; | |
3503 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
3504 | /* this will call our completion handler */ | |
3505 | spin_lock_irq(&phba->hbalock); | |
f1c3b0fc | 3506 | lpfc_sli_issue_abort_iotag(phba, pring, cmdiocb); |
4cc0e56e JS |
3507 | spin_unlock_irq(&phba->hbalock); |
3508 | break; | |
3509 | case TYPE_EVT: | |
3510 | evt = dd_data->context_un.evt; | |
3511 | /* this event has no job anymore */ | |
3512 | evt->set_job = NULL; | |
3513 | job->dd_data = NULL; | |
3514 | job->reply->reply_payload_rcv_len = 0; | |
3515 | /* Return -EAGAIN which is our way of signallying the | |
3516 | * app to retry. | |
3517 | */ | |
3518 | job->reply->result = -EAGAIN; | |
3519 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
3520 | job->job_done(job); | |
3521 | break; | |
3b5dd52a JS |
3522 | case TYPE_MBOX: |
3523 | mbox = &dd_data->context_un.mbox; | |
3524 | /* this mbox has no job anymore */ | |
3525 | mbox->set_job = NULL; | |
3526 | job->dd_data = NULL; | |
3527 | job->reply->reply_payload_rcv_len = 0; | |
3528 | job->reply->result = -EAGAIN; | |
7a470277 | 3529 | /* the mbox completion handler can now be run */ |
3b5dd52a JS |
3530 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
3531 | job->job_done(job); | |
3532 | break; | |
e2aed29f JS |
3533 | case TYPE_MENLO: |
3534 | menlo = &dd_data->context_un.menlo; | |
3535 | cmdiocb = menlo->cmdiocbq; | |
3536 | /* hint to completion handler that the job timed out */ | |
3537 | job->reply->result = -EAGAIN; | |
3538 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
3539 | /* this will call our completion handler */ | |
3540 | spin_lock_irq(&phba->hbalock); | |
3541 | lpfc_sli_issue_abort_iotag(phba, pring, cmdiocb); | |
3542 | spin_unlock_irq(&phba->hbalock); | |
3543 | break; | |
4cc0e56e JS |
3544 | default: |
3545 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
3546 | break; | |
3547 | } | |
f1c3b0fc | 3548 | |
4cc0e56e JS |
3549 | /* scsi transport fc fc_bsg_job_timeout expects a zero return code, |
3550 | * otherwise an error message will be displayed on the console | |
3551 | * so always return success (zero) | |
3552 | */ | |
f1c3b0fc JS |
3553 | return 0; |
3554 | } |