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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> | |
277e76f1 | 24 | #include <linux/delay.h> |
f1c3b0fc JS |
25 | |
26 | #include <scsi/scsi.h> | |
27 | #include <scsi/scsi_host.h> | |
28 | #include <scsi/scsi_transport_fc.h> | |
29 | #include <scsi/scsi_bsg_fc.h> | |
6a9c52cf | 30 | #include <scsi/fc/fc_fs.h> |
f1c3b0fc JS |
31 | |
32 | #include "lpfc_hw4.h" | |
33 | #include "lpfc_hw.h" | |
34 | #include "lpfc_sli.h" | |
35 | #include "lpfc_sli4.h" | |
36 | #include "lpfc_nl.h" | |
4fede78f | 37 | #include "lpfc_bsg.h" |
f1c3b0fc JS |
38 | #include "lpfc_disc.h" |
39 | #include "lpfc_scsi.h" | |
40 | #include "lpfc.h" | |
41 | #include "lpfc_logmsg.h" | |
42 | #include "lpfc_crtn.h" | |
43 | #include "lpfc_vport.h" | |
44 | #include "lpfc_version.h" | |
45 | ||
4cc0e56e JS |
46 | struct lpfc_bsg_event { |
47 | struct list_head node; | |
48 | struct kref kref; | |
49 | wait_queue_head_t wq; | |
50 | ||
51 | /* Event type and waiter identifiers */ | |
52 | uint32_t type_mask; | |
53 | uint32_t req_id; | |
54 | uint32_t reg_id; | |
55 | ||
56 | /* next two flags are here for the auto-delete logic */ | |
57 | unsigned long wait_time_stamp; | |
58 | int waiting; | |
59 | ||
60 | /* seen and not seen events */ | |
61 | struct list_head events_to_get; | |
62 | struct list_head events_to_see; | |
63 | ||
64 | /* job waiting for this event to finish */ | |
65 | struct fc_bsg_job *set_job; | |
66 | }; | |
67 | ||
68 | struct lpfc_bsg_iocb { | |
69 | struct lpfc_iocbq *cmdiocbq; | |
70 | struct lpfc_iocbq *rspiocbq; | |
71 | struct lpfc_dmabuf *bmp; | |
72 | struct lpfc_nodelist *ndlp; | |
73 | ||
74 | /* job waiting for this iocb to finish */ | |
75 | struct fc_bsg_job *set_job; | |
76 | }; | |
77 | ||
3b5dd52a JS |
78 | struct lpfc_bsg_mbox { |
79 | LPFC_MBOXQ_t *pmboxq; | |
80 | MAILBOX_t *mb; | |
81 | ||
82 | /* job waiting for this mbox command to finish */ | |
83 | struct fc_bsg_job *set_job; | |
84 | }; | |
85 | ||
e2aed29f JS |
86 | #define MENLO_DID 0x0000FC0E |
87 | ||
88 | struct lpfc_bsg_menlo { | |
89 | struct lpfc_iocbq *cmdiocbq; | |
90 | struct lpfc_iocbq *rspiocbq; | |
91 | struct lpfc_dmabuf *bmp; | |
92 | ||
93 | /* job waiting for this iocb to finish */ | |
94 | struct fc_bsg_job *set_job; | |
95 | }; | |
96 | ||
4cc0e56e JS |
97 | #define TYPE_EVT 1 |
98 | #define TYPE_IOCB 2 | |
3b5dd52a | 99 | #define TYPE_MBOX 3 |
e2aed29f | 100 | #define TYPE_MENLO 4 |
4cc0e56e JS |
101 | struct bsg_job_data { |
102 | uint32_t type; | |
103 | union { | |
104 | struct lpfc_bsg_event *evt; | |
105 | struct lpfc_bsg_iocb iocb; | |
3b5dd52a | 106 | struct lpfc_bsg_mbox mbox; |
e2aed29f | 107 | struct lpfc_bsg_menlo menlo; |
4cc0e56e JS |
108 | } context_un; |
109 | }; | |
110 | ||
111 | struct event_data { | |
112 | struct list_head node; | |
113 | uint32_t type; | |
114 | uint32_t immed_dat; | |
115 | void *data; | |
116 | uint32_t len; | |
117 | }; | |
118 | ||
3b5dd52a | 119 | #define BUF_SZ_4K 4096 |
4cc0e56e JS |
120 | #define SLI_CT_ELX_LOOPBACK 0x10 |
121 | ||
122 | enum ELX_LOOPBACK_CMD { | |
123 | ELX_LOOPBACK_XRI_SETUP, | |
124 | ELX_LOOPBACK_DATA, | |
125 | }; | |
126 | ||
3b5dd52a JS |
127 | #define ELX_LOOPBACK_HEADER_SZ \ |
128 | (size_t)(&((struct lpfc_sli_ct_request *)NULL)->un) | |
129 | ||
4cc0e56e JS |
130 | struct lpfc_dmabufext { |
131 | struct lpfc_dmabuf dma; | |
132 | uint32_t size; | |
133 | uint32_t flag; | |
134 | }; | |
135 | ||
136 | /** | |
137 | * lpfc_bsg_send_mgmt_cmd_cmp - lpfc_bsg_send_mgmt_cmd's completion handler | |
138 | * @phba: Pointer to HBA context object. | |
139 | * @cmdiocbq: Pointer to command iocb. | |
140 | * @rspiocbq: Pointer to response iocb. | |
141 | * | |
142 | * This function is the completion handler for iocbs issued using | |
143 | * lpfc_bsg_send_mgmt_cmd function. This function is called by the | |
144 | * ring event handler function without any lock held. This function | |
145 | * can be called from both worker thread context and interrupt | |
146 | * context. This function also can be called from another thread which | |
147 | * cleans up the SLI layer objects. | |
148 | * This function copies the contents of the response iocb to the | |
149 | * response iocb memory object provided by the caller of | |
150 | * lpfc_sli_issue_iocb_wait and then wakes up the thread which | |
151 | * sleeps for the iocb completion. | |
152 | **/ | |
153 | static void | |
154 | lpfc_bsg_send_mgmt_cmd_cmp(struct lpfc_hba *phba, | |
155 | struct lpfc_iocbq *cmdiocbq, | |
156 | struct lpfc_iocbq *rspiocbq) | |
157 | { | |
158 | unsigned long iflags; | |
159 | struct bsg_job_data *dd_data; | |
160 | struct fc_bsg_job *job; | |
161 | IOCB_t *rsp; | |
162 | struct lpfc_dmabuf *bmp; | |
163 | struct lpfc_nodelist *ndlp; | |
164 | struct lpfc_bsg_iocb *iocb; | |
165 | unsigned long flags; | |
166 | int rc = 0; | |
167 | ||
168 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
169 | dd_data = cmdiocbq->context1; | |
170 | if (!dd_data) { | |
171 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
172 | return; | |
173 | } | |
174 | ||
175 | iocb = &dd_data->context_un.iocb; | |
176 | job = iocb->set_job; | |
177 | job->dd_data = NULL; /* so timeout handler does not reply */ | |
178 | ||
179 | spin_lock_irqsave(&phba->hbalock, iflags); | |
180 | cmdiocbq->iocb_flag |= LPFC_IO_WAKE; | |
181 | if (cmdiocbq->context2 && rspiocbq) | |
182 | memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb, | |
183 | &rspiocbq->iocb, sizeof(IOCB_t)); | |
184 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
185 | ||
186 | bmp = iocb->bmp; | |
187 | rspiocbq = iocb->rspiocbq; | |
188 | rsp = &rspiocbq->iocb; | |
189 | ndlp = iocb->ndlp; | |
190 | ||
191 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, | |
192 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
193 | pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list, | |
194 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); | |
195 | ||
196 | if (rsp->ulpStatus) { | |
197 | if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) { | |
198 | switch (rsp->un.ulpWord[4] & 0xff) { | |
199 | case IOERR_SEQUENCE_TIMEOUT: | |
200 | rc = -ETIMEDOUT; | |
201 | break; | |
202 | case IOERR_INVALID_RPI: | |
203 | rc = -EFAULT; | |
204 | break; | |
205 | default: | |
206 | rc = -EACCES; | |
207 | break; | |
208 | } | |
209 | } else | |
210 | rc = -EACCES; | |
211 | } else | |
212 | job->reply->reply_payload_rcv_len = | |
213 | rsp->un.genreq64.bdl.bdeSize; | |
214 | ||
215 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); | |
216 | lpfc_sli_release_iocbq(phba, rspiocbq); | |
217 | lpfc_sli_release_iocbq(phba, cmdiocbq); | |
218 | lpfc_nlp_put(ndlp); | |
219 | kfree(bmp); | |
220 | kfree(dd_data); | |
221 | /* make error code available to userspace */ | |
222 | job->reply->result = rc; | |
223 | /* complete the job back to userspace */ | |
224 | job->job_done(job); | |
225 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
226 | return; | |
227 | } | |
228 | ||
f1c3b0fc | 229 | /** |
4cc0e56e | 230 | * lpfc_bsg_send_mgmt_cmd - send a CT command from a bsg request |
f1c3b0fc | 231 | * @job: fc_bsg_job to handle |
3b5dd52a | 232 | **/ |
f1c3b0fc | 233 | static int |
4cc0e56e | 234 | lpfc_bsg_send_mgmt_cmd(struct fc_bsg_job *job) |
f1c3b0fc | 235 | { |
f1c3b0fc JS |
236 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; |
237 | struct lpfc_hba *phba = vport->phba; | |
238 | struct lpfc_rport_data *rdata = job->rport->dd_data; | |
239 | struct lpfc_nodelist *ndlp = rdata->pnode; | |
240 | struct ulp_bde64 *bpl = NULL; | |
241 | uint32_t timeout; | |
242 | struct lpfc_iocbq *cmdiocbq = NULL; | |
243 | struct lpfc_iocbq *rspiocbq = NULL; | |
244 | IOCB_t *cmd; | |
245 | IOCB_t *rsp; | |
246 | struct lpfc_dmabuf *bmp = NULL; | |
247 | int request_nseg; | |
248 | int reply_nseg; | |
249 | struct scatterlist *sgel = NULL; | |
250 | int numbde; | |
251 | dma_addr_t busaddr; | |
4cc0e56e JS |
252 | struct bsg_job_data *dd_data; |
253 | uint32_t creg_val; | |
f1c3b0fc JS |
254 | int rc = 0; |
255 | ||
256 | /* in case no data is transferred */ | |
257 | job->reply->reply_payload_rcv_len = 0; | |
258 | ||
4cc0e56e JS |
259 | /* allocate our bsg tracking structure */ |
260 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); | |
261 | if (!dd_data) { | |
262 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
263 | "2733 Failed allocation of dd_data\n"); | |
264 | rc = -ENOMEM; | |
265 | goto no_dd_data; | |
266 | } | |
267 | ||
f1c3b0fc | 268 | if (!lpfc_nlp_get(ndlp)) { |
4cc0e56e JS |
269 | rc = -ENODEV; |
270 | goto no_ndlp; | |
271 | } | |
272 | ||
273 | bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
274 | if (!bmp) { | |
275 | rc = -ENOMEM; | |
276 | goto free_ndlp; | |
f1c3b0fc JS |
277 | } |
278 | ||
279 | if (ndlp->nlp_flag & NLP_ELS_SND_MASK) { | |
280 | rc = -ENODEV; | |
4cc0e56e | 281 | goto free_bmp; |
f1c3b0fc JS |
282 | } |
283 | ||
f1c3b0fc JS |
284 | cmdiocbq = lpfc_sli_get_iocbq(phba); |
285 | if (!cmdiocbq) { | |
286 | rc = -ENOMEM; | |
4cc0e56e | 287 | goto free_bmp; |
f1c3b0fc | 288 | } |
f1c3b0fc | 289 | |
4cc0e56e | 290 | cmd = &cmdiocbq->iocb; |
f1c3b0fc JS |
291 | rspiocbq = lpfc_sli_get_iocbq(phba); |
292 | if (!rspiocbq) { | |
293 | rc = -ENOMEM; | |
294 | goto free_cmdiocbq; | |
295 | } | |
f1c3b0fc JS |
296 | |
297 | rsp = &rspiocbq->iocb; | |
f1c3b0fc JS |
298 | bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys); |
299 | if (!bmp->virt) { | |
300 | rc = -ENOMEM; | |
4cc0e56e | 301 | goto free_rspiocbq; |
f1c3b0fc | 302 | } |
f1c3b0fc JS |
303 | |
304 | INIT_LIST_HEAD(&bmp->list); | |
305 | bpl = (struct ulp_bde64 *) bmp->virt; | |
f1c3b0fc JS |
306 | request_nseg = pci_map_sg(phba->pcidev, job->request_payload.sg_list, |
307 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
308 | for_each_sg(job->request_payload.sg_list, sgel, request_nseg, numbde) { | |
309 | busaddr = sg_dma_address(sgel); | |
310 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
311 | bpl->tus.f.bdeSize = sg_dma_len(sgel); | |
312 | bpl->tus.w = cpu_to_le32(bpl->tus.w); | |
313 | bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr)); | |
314 | bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr)); | |
315 | bpl++; | |
316 | } | |
317 | ||
318 | reply_nseg = pci_map_sg(phba->pcidev, job->reply_payload.sg_list, | |
319 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); | |
320 | for_each_sg(job->reply_payload.sg_list, sgel, reply_nseg, numbde) { | |
321 | busaddr = sg_dma_address(sgel); | |
322 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; | |
323 | bpl->tus.f.bdeSize = sg_dma_len(sgel); | |
324 | bpl->tus.w = cpu_to_le32(bpl->tus.w); | |
325 | bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr)); | |
326 | bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr)); | |
327 | bpl++; | |
328 | } | |
329 | ||
330 | cmd->un.genreq64.bdl.ulpIoTag32 = 0; | |
331 | cmd->un.genreq64.bdl.addrHigh = putPaddrHigh(bmp->phys); | |
332 | cmd->un.genreq64.bdl.addrLow = putPaddrLow(bmp->phys); | |
333 | cmd->un.genreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; | |
334 | cmd->un.genreq64.bdl.bdeSize = | |
335 | (request_nseg + reply_nseg) * sizeof(struct ulp_bde64); | |
336 | cmd->ulpCommand = CMD_GEN_REQUEST64_CR; | |
337 | cmd->un.genreq64.w5.hcsw.Fctl = (SI | LA); | |
338 | cmd->un.genreq64.w5.hcsw.Dfctl = 0; | |
6a9c52cf JS |
339 | cmd->un.genreq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL; |
340 | cmd->un.genreq64.w5.hcsw.Type = FC_TYPE_CT; | |
f1c3b0fc JS |
341 | cmd->ulpBdeCount = 1; |
342 | cmd->ulpLe = 1; | |
343 | cmd->ulpClass = CLASS3; | |
344 | cmd->ulpContext = ndlp->nlp_rpi; | |
345 | cmd->ulpOwner = OWN_CHIP; | |
346 | cmdiocbq->vport = phba->pport; | |
4cc0e56e | 347 | cmdiocbq->context3 = bmp; |
f1c3b0fc | 348 | cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC; |
f1c3b0fc | 349 | timeout = phba->fc_ratov * 2; |
4cc0e56e JS |
350 | cmd->ulpTimeout = timeout; |
351 | ||
352 | cmdiocbq->iocb_cmpl = lpfc_bsg_send_mgmt_cmd_cmp; | |
353 | cmdiocbq->context1 = dd_data; | |
354 | cmdiocbq->context2 = rspiocbq; | |
355 | dd_data->type = TYPE_IOCB; | |
356 | dd_data->context_un.iocb.cmdiocbq = cmdiocbq; | |
357 | dd_data->context_un.iocb.rspiocbq = rspiocbq; | |
358 | dd_data->context_un.iocb.set_job = job; | |
359 | dd_data->context_un.iocb.bmp = bmp; | |
360 | dd_data->context_un.iocb.ndlp = ndlp; | |
361 | ||
362 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { | |
363 | creg_val = readl(phba->HCregaddr); | |
364 | creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); | |
365 | writel(creg_val, phba->HCregaddr); | |
366 | readl(phba->HCregaddr); /* flush */ | |
f1c3b0fc JS |
367 | } |
368 | ||
4cc0e56e | 369 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, 0); |
f1c3b0fc | 370 | |
4cc0e56e JS |
371 | if (rc == IOCB_SUCCESS) |
372 | return 0; /* done for now */ | |
f1c3b0fc | 373 | |
4cc0e56e JS |
374 | /* iocb failed so cleanup */ |
375 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, | |
376 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
377 | pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list, | |
378 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); | |
f1c3b0fc | 379 | |
f1c3b0fc | 380 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); |
4cc0e56e | 381 | |
f1c3b0fc JS |
382 | free_rspiocbq: |
383 | lpfc_sli_release_iocbq(phba, rspiocbq); | |
384 | free_cmdiocbq: | |
385 | lpfc_sli_release_iocbq(phba, cmdiocbq); | |
4cc0e56e JS |
386 | free_bmp: |
387 | kfree(bmp); | |
388 | free_ndlp: | |
f1c3b0fc | 389 | lpfc_nlp_put(ndlp); |
4cc0e56e JS |
390 | no_ndlp: |
391 | kfree(dd_data); | |
392 | no_dd_data: | |
393 | /* make error code available to userspace */ | |
394 | job->reply->result = rc; | |
395 | job->dd_data = NULL; | |
396 | return rc; | |
397 | } | |
398 | ||
399 | /** | |
400 | * lpfc_bsg_rport_els_cmp - lpfc_bsg_rport_els's completion handler | |
401 | * @phba: Pointer to HBA context object. | |
402 | * @cmdiocbq: Pointer to command iocb. | |
403 | * @rspiocbq: Pointer to response iocb. | |
404 | * | |
405 | * This function is the completion handler for iocbs issued using | |
406 | * lpfc_bsg_rport_els_cmp function. This function is called by the | |
407 | * ring event handler function without any lock held. This function | |
408 | * can be called from both worker thread context and interrupt | |
409 | * context. This function also can be called from other thread which | |
410 | * cleans up the SLI layer objects. | |
3b5dd52a | 411 | * This function copies the contents of the response iocb to the |
4cc0e56e JS |
412 | * response iocb memory object provided by the caller of |
413 | * lpfc_sli_issue_iocb_wait and then wakes up the thread which | |
414 | * sleeps for the iocb completion. | |
415 | **/ | |
416 | static void | |
417 | lpfc_bsg_rport_els_cmp(struct lpfc_hba *phba, | |
418 | struct lpfc_iocbq *cmdiocbq, | |
419 | struct lpfc_iocbq *rspiocbq) | |
420 | { | |
421 | struct bsg_job_data *dd_data; | |
422 | struct fc_bsg_job *job; | |
423 | IOCB_t *rsp; | |
424 | struct lpfc_nodelist *ndlp; | |
425 | struct lpfc_dmabuf *pbuflist = NULL; | |
426 | struct fc_bsg_ctels_reply *els_reply; | |
427 | uint8_t *rjt_data; | |
428 | unsigned long flags; | |
429 | int rc = 0; | |
430 | ||
431 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
432 | dd_data = cmdiocbq->context1; | |
433 | /* normal completion and timeout crossed paths, already done */ | |
434 | if (!dd_data) { | |
435 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
436 | return; | |
437 | } | |
438 | ||
439 | cmdiocbq->iocb_flag |= LPFC_IO_WAKE; | |
440 | if (cmdiocbq->context2 && rspiocbq) | |
441 | memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb, | |
442 | &rspiocbq->iocb, sizeof(IOCB_t)); | |
443 | ||
444 | job = dd_data->context_un.iocb.set_job; | |
445 | cmdiocbq = dd_data->context_un.iocb.cmdiocbq; | |
446 | rspiocbq = dd_data->context_un.iocb.rspiocbq; | |
447 | rsp = &rspiocbq->iocb; | |
448 | ndlp = dd_data->context_un.iocb.ndlp; | |
449 | ||
450 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, | |
451 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
452 | pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list, | |
453 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); | |
454 | ||
455 | if (job->reply->result == -EAGAIN) | |
456 | rc = -EAGAIN; | |
457 | else if (rsp->ulpStatus == IOSTAT_SUCCESS) | |
458 | job->reply->reply_payload_rcv_len = | |
459 | rsp->un.elsreq64.bdl.bdeSize; | |
460 | else if (rsp->ulpStatus == IOSTAT_LS_RJT) { | |
461 | job->reply->reply_payload_rcv_len = | |
462 | sizeof(struct fc_bsg_ctels_reply); | |
463 | /* LS_RJT data returned in word 4 */ | |
464 | rjt_data = (uint8_t *)&rsp->un.ulpWord[4]; | |
465 | els_reply = &job->reply->reply_data.ctels_reply; | |
466 | els_reply->status = FC_CTELS_STATUS_REJECT; | |
467 | els_reply->rjt_data.action = rjt_data[3]; | |
468 | els_reply->rjt_data.reason_code = rjt_data[2]; | |
469 | els_reply->rjt_data.reason_explanation = rjt_data[1]; | |
470 | els_reply->rjt_data.vendor_unique = rjt_data[0]; | |
471 | } else | |
472 | rc = -EIO; | |
f1c3b0fc | 473 | |
4cc0e56e JS |
474 | pbuflist = (struct lpfc_dmabuf *) cmdiocbq->context3; |
475 | lpfc_mbuf_free(phba, pbuflist->virt, pbuflist->phys); | |
476 | lpfc_sli_release_iocbq(phba, rspiocbq); | |
477 | lpfc_sli_release_iocbq(phba, cmdiocbq); | |
478 | lpfc_nlp_put(ndlp); | |
479 | kfree(dd_data); | |
f1c3b0fc JS |
480 | /* make error code available to userspace */ |
481 | job->reply->result = rc; | |
4cc0e56e | 482 | job->dd_data = NULL; |
f1c3b0fc JS |
483 | /* complete the job back to userspace */ |
484 | job->job_done(job); | |
4cc0e56e JS |
485 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
486 | return; | |
f1c3b0fc JS |
487 | } |
488 | ||
489 | /** | |
490 | * lpfc_bsg_rport_els - send an ELS command from a bsg request | |
491 | * @job: fc_bsg_job to handle | |
3b5dd52a | 492 | **/ |
f1c3b0fc JS |
493 | static int |
494 | lpfc_bsg_rport_els(struct fc_bsg_job *job) | |
495 | { | |
496 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
497 | struct lpfc_hba *phba = vport->phba; | |
498 | struct lpfc_rport_data *rdata = job->rport->dd_data; | |
499 | struct lpfc_nodelist *ndlp = rdata->pnode; | |
f1c3b0fc JS |
500 | uint32_t elscmd; |
501 | uint32_t cmdsize; | |
502 | uint32_t rspsize; | |
503 | struct lpfc_iocbq *rspiocbq; | |
504 | struct lpfc_iocbq *cmdiocbq; | |
505 | IOCB_t *rsp; | |
506 | uint16_t rpi = 0; | |
507 | struct lpfc_dmabuf *pcmd; | |
508 | struct lpfc_dmabuf *prsp; | |
509 | struct lpfc_dmabuf *pbuflist = NULL; | |
510 | struct ulp_bde64 *bpl; | |
f1c3b0fc JS |
511 | int request_nseg; |
512 | int reply_nseg; | |
513 | struct scatterlist *sgel = NULL; | |
514 | int numbde; | |
515 | dma_addr_t busaddr; | |
4cc0e56e JS |
516 | struct bsg_job_data *dd_data; |
517 | uint32_t creg_val; | |
f1c3b0fc JS |
518 | int rc = 0; |
519 | ||
520 | /* in case no data is transferred */ | |
521 | job->reply->reply_payload_rcv_len = 0; | |
522 | ||
4cc0e56e JS |
523 | /* allocate our bsg tracking structure */ |
524 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); | |
525 | if (!dd_data) { | |
526 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
527 | "2735 Failed allocation of dd_data\n"); | |
528 | rc = -ENOMEM; | |
529 | goto no_dd_data; | |
530 | } | |
531 | ||
f1c3b0fc JS |
532 | if (!lpfc_nlp_get(ndlp)) { |
533 | rc = -ENODEV; | |
4cc0e56e | 534 | goto free_dd_data; |
f1c3b0fc JS |
535 | } |
536 | ||
537 | elscmd = job->request->rqst_data.r_els.els_code; | |
538 | cmdsize = job->request_payload.payload_len; | |
539 | rspsize = job->reply_payload.payload_len; | |
540 | rspiocbq = lpfc_sli_get_iocbq(phba); | |
541 | if (!rspiocbq) { | |
542 | lpfc_nlp_put(ndlp); | |
543 | rc = -ENOMEM; | |
4cc0e56e | 544 | goto free_dd_data; |
f1c3b0fc JS |
545 | } |
546 | ||
547 | rsp = &rspiocbq->iocb; | |
548 | rpi = ndlp->nlp_rpi; | |
549 | ||
4cc0e56e | 550 | cmdiocbq = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, |
f1c3b0fc | 551 | ndlp->nlp_DID, elscmd); |
f1c3b0fc | 552 | if (!cmdiocbq) { |
4cc0e56e JS |
553 | rc = -EIO; |
554 | goto free_rspiocbq; | |
f1c3b0fc JS |
555 | } |
556 | ||
4cc0e56e | 557 | /* prep els iocb set context1 to the ndlp, context2 to the command |
3b5dd52a JS |
558 | * dmabuf, context3 holds the data dmabuf |
559 | */ | |
f1c3b0fc JS |
560 | pcmd = (struct lpfc_dmabuf *) cmdiocbq->context2; |
561 | prsp = (struct lpfc_dmabuf *) pcmd->list.next; | |
f1c3b0fc JS |
562 | lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys); |
563 | kfree(pcmd); | |
564 | lpfc_mbuf_free(phba, prsp->virt, prsp->phys); | |
565 | kfree(prsp); | |
566 | cmdiocbq->context2 = NULL; | |
567 | ||
568 | pbuflist = (struct lpfc_dmabuf *) cmdiocbq->context3; | |
569 | bpl = (struct ulp_bde64 *) pbuflist->virt; | |
570 | ||
571 | request_nseg = pci_map_sg(phba->pcidev, job->request_payload.sg_list, | |
572 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
f1c3b0fc JS |
573 | for_each_sg(job->request_payload.sg_list, sgel, request_nseg, numbde) { |
574 | busaddr = sg_dma_address(sgel); | |
575 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
576 | bpl->tus.f.bdeSize = sg_dma_len(sgel); | |
577 | bpl->tus.w = cpu_to_le32(bpl->tus.w); | |
578 | bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr)); | |
579 | bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr)); | |
580 | bpl++; | |
581 | } | |
582 | ||
583 | reply_nseg = pci_map_sg(phba->pcidev, job->reply_payload.sg_list, | |
584 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); | |
585 | for_each_sg(job->reply_payload.sg_list, sgel, reply_nseg, numbde) { | |
586 | busaddr = sg_dma_address(sgel); | |
587 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; | |
588 | bpl->tus.f.bdeSize = sg_dma_len(sgel); | |
589 | bpl->tus.w = cpu_to_le32(bpl->tus.w); | |
590 | bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr)); | |
591 | bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr)); | |
592 | bpl++; | |
593 | } | |
f1c3b0fc JS |
594 | cmdiocbq->iocb.un.elsreq64.bdl.bdeSize = |
595 | (request_nseg + reply_nseg) * sizeof(struct ulp_bde64); | |
596 | cmdiocbq->iocb.ulpContext = rpi; | |
597 | cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC; | |
598 | cmdiocbq->context1 = NULL; | |
599 | cmdiocbq->context2 = NULL; | |
600 | ||
4cc0e56e JS |
601 | cmdiocbq->iocb_cmpl = lpfc_bsg_rport_els_cmp; |
602 | cmdiocbq->context1 = dd_data; | |
603 | cmdiocbq->context2 = rspiocbq; | |
604 | dd_data->type = TYPE_IOCB; | |
605 | dd_data->context_un.iocb.cmdiocbq = cmdiocbq; | |
606 | dd_data->context_un.iocb.rspiocbq = rspiocbq; | |
607 | dd_data->context_un.iocb.set_job = job; | |
608 | dd_data->context_un.iocb.bmp = NULL;; | |
609 | dd_data->context_un.iocb.ndlp = ndlp; | |
610 | ||
611 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { | |
612 | creg_val = readl(phba->HCregaddr); | |
613 | creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); | |
614 | writel(creg_val, phba->HCregaddr); | |
615 | readl(phba->HCregaddr); /* flush */ | |
616 | } | |
617 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, 0); | |
f1c3b0fc | 618 | lpfc_nlp_put(ndlp); |
4cc0e56e JS |
619 | if (rc == IOCB_SUCCESS) |
620 | return 0; /* done for now */ | |
f1c3b0fc | 621 | |
4cc0e56e JS |
622 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, |
623 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
624 | pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list, | |
625 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); | |
f1c3b0fc | 626 | |
4cc0e56e | 627 | lpfc_mbuf_free(phba, pbuflist->virt, pbuflist->phys); |
f1c3b0fc | 628 | |
4cc0e56e | 629 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
f1c3b0fc | 630 | |
4cc0e56e JS |
631 | free_rspiocbq: |
632 | lpfc_sli_release_iocbq(phba, rspiocbq); | |
f1c3b0fc | 633 | |
4cc0e56e JS |
634 | free_dd_data: |
635 | kfree(dd_data); | |
f1c3b0fc | 636 | |
4cc0e56e JS |
637 | no_dd_data: |
638 | /* make error code available to userspace */ | |
639 | job->reply->result = rc; | |
640 | job->dd_data = NULL; | |
641 | return rc; | |
f1c3b0fc JS |
642 | } |
643 | ||
3b5dd52a JS |
644 | /** |
645 | * lpfc_bsg_event_free - frees an allocated event structure | |
646 | * @kref: Pointer to a kref. | |
647 | * | |
648 | * Called from kref_put. Back cast the kref into an event structure address. | |
649 | * Free any events to get, delete associated nodes, free any events to see, | |
650 | * free any data then free the event itself. | |
651 | **/ | |
f1c3b0fc | 652 | static void |
4cc0e56e | 653 | lpfc_bsg_event_free(struct kref *kref) |
f1c3b0fc | 654 | { |
4cc0e56e JS |
655 | struct lpfc_bsg_event *evt = container_of(kref, struct lpfc_bsg_event, |
656 | kref); | |
f1c3b0fc JS |
657 | struct event_data *ed; |
658 | ||
659 | list_del(&evt->node); | |
660 | ||
661 | while (!list_empty(&evt->events_to_get)) { | |
662 | ed = list_entry(evt->events_to_get.next, typeof(*ed), node); | |
663 | list_del(&ed->node); | |
664 | kfree(ed->data); | |
665 | kfree(ed); | |
666 | } | |
667 | ||
668 | while (!list_empty(&evt->events_to_see)) { | |
669 | ed = list_entry(evt->events_to_see.next, typeof(*ed), node); | |
670 | list_del(&ed->node); | |
671 | kfree(ed->data); | |
672 | kfree(ed); | |
673 | } | |
674 | ||
675 | kfree(evt); | |
676 | } | |
677 | ||
3b5dd52a JS |
678 | /** |
679 | * lpfc_bsg_event_ref - increments the kref for an event | |
680 | * @evt: Pointer to an event structure. | |
681 | **/ | |
f1c3b0fc | 682 | static inline void |
4cc0e56e | 683 | lpfc_bsg_event_ref(struct lpfc_bsg_event *evt) |
f1c3b0fc | 684 | { |
4cc0e56e | 685 | kref_get(&evt->kref); |
f1c3b0fc JS |
686 | } |
687 | ||
3b5dd52a JS |
688 | /** |
689 | * lpfc_bsg_event_unref - Uses kref_put to free an event structure | |
690 | * @evt: Pointer to an event structure. | |
691 | **/ | |
f1c3b0fc | 692 | static inline void |
4cc0e56e | 693 | lpfc_bsg_event_unref(struct lpfc_bsg_event *evt) |
f1c3b0fc | 694 | { |
4cc0e56e | 695 | kref_put(&evt->kref, lpfc_bsg_event_free); |
f1c3b0fc JS |
696 | } |
697 | ||
3b5dd52a JS |
698 | /** |
699 | * lpfc_bsg_event_new - allocate and initialize a event structure | |
700 | * @ev_mask: Mask of events. | |
701 | * @ev_reg_id: Event reg id. | |
702 | * @ev_req_id: Event request id. | |
703 | **/ | |
4cc0e56e JS |
704 | static struct lpfc_bsg_event * |
705 | lpfc_bsg_event_new(uint32_t ev_mask, int ev_reg_id, uint32_t ev_req_id) | |
706 | { | |
707 | struct lpfc_bsg_event *evt = kzalloc(sizeof(*evt), GFP_KERNEL); | |
f1c3b0fc | 708 | |
4cc0e56e JS |
709 | if (!evt) |
710 | return NULL; | |
711 | ||
712 | INIT_LIST_HEAD(&evt->events_to_get); | |
713 | INIT_LIST_HEAD(&evt->events_to_see); | |
714 | evt->type_mask = ev_mask; | |
715 | evt->req_id = ev_req_id; | |
716 | evt->reg_id = ev_reg_id; | |
717 | evt->wait_time_stamp = jiffies; | |
718 | init_waitqueue_head(&evt->wq); | |
719 | kref_init(&evt->kref); | |
720 | return evt; | |
721 | } | |
722 | ||
3b5dd52a JS |
723 | /** |
724 | * diag_cmd_data_free - Frees an lpfc dma buffer extension | |
725 | * @phba: Pointer to HBA context object. | |
726 | * @mlist: Pointer to an lpfc dma buffer extension. | |
727 | **/ | |
4cc0e56e | 728 | static int |
3b5dd52a | 729 | diag_cmd_data_free(struct lpfc_hba *phba, struct lpfc_dmabufext *mlist) |
4cc0e56e JS |
730 | { |
731 | struct lpfc_dmabufext *mlast; | |
732 | struct pci_dev *pcidev; | |
733 | struct list_head head, *curr, *next; | |
734 | ||
735 | if ((!mlist) || (!lpfc_is_link_up(phba) && | |
736 | (phba->link_flag & LS_LOOPBACK_MODE))) { | |
737 | return 0; | |
738 | } | |
739 | ||
740 | pcidev = phba->pcidev; | |
741 | list_add_tail(&head, &mlist->dma.list); | |
742 | ||
743 | list_for_each_safe(curr, next, &head) { | |
744 | mlast = list_entry(curr, struct lpfc_dmabufext , dma.list); | |
745 | if (mlast->dma.virt) | |
746 | dma_free_coherent(&pcidev->dev, | |
747 | mlast->size, | |
748 | mlast->dma.virt, | |
749 | mlast->dma.phys); | |
750 | kfree(mlast); | |
751 | } | |
752 | return 0; | |
753 | } | |
f1c3b0fc JS |
754 | |
755 | /** | |
756 | * lpfc_bsg_ct_unsol_event - process an unsolicited CT command | |
757 | * @phba: | |
758 | * @pring: | |
759 | * @piocbq: | |
760 | * | |
761 | * This function is called when an unsolicited CT command is received. It | |
4cc0e56e | 762 | * forwards the event to any processes registered to receive CT events. |
3b5dd52a | 763 | **/ |
4fede78f | 764 | int |
f1c3b0fc JS |
765 | lpfc_bsg_ct_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
766 | struct lpfc_iocbq *piocbq) | |
767 | { | |
768 | uint32_t evt_req_id = 0; | |
769 | uint32_t cmd; | |
770 | uint32_t len; | |
771 | struct lpfc_dmabuf *dmabuf = NULL; | |
4cc0e56e | 772 | struct lpfc_bsg_event *evt; |
f1c3b0fc JS |
773 | struct event_data *evt_dat = NULL; |
774 | struct lpfc_iocbq *iocbq; | |
775 | size_t offset = 0; | |
776 | struct list_head head; | |
777 | struct ulp_bde64 *bde; | |
778 | dma_addr_t dma_addr; | |
779 | int i; | |
780 | struct lpfc_dmabuf *bdeBuf1 = piocbq->context2; | |
781 | struct lpfc_dmabuf *bdeBuf2 = piocbq->context3; | |
782 | struct lpfc_hbq_entry *hbqe; | |
783 | struct lpfc_sli_ct_request *ct_req; | |
4cc0e56e | 784 | struct fc_bsg_job *job = NULL; |
4fede78f | 785 | unsigned long flags; |
4cc0e56e | 786 | int size = 0; |
f1c3b0fc JS |
787 | |
788 | INIT_LIST_HEAD(&head); | |
789 | list_add_tail(&head, &piocbq->list); | |
790 | ||
791 | if (piocbq->iocb.ulpBdeCount == 0 || | |
792 | piocbq->iocb.un.cont64[0].tus.f.bdeSize == 0) | |
793 | goto error_ct_unsol_exit; | |
794 | ||
4cc0e56e JS |
795 | if (phba->link_state == LPFC_HBA_ERROR || |
796 | (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE))) | |
797 | goto error_ct_unsol_exit; | |
798 | ||
f1c3b0fc JS |
799 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) |
800 | dmabuf = bdeBuf1; | |
801 | else { | |
802 | dma_addr = getPaddr(piocbq->iocb.un.cont64[0].addrHigh, | |
803 | piocbq->iocb.un.cont64[0].addrLow); | |
804 | dmabuf = lpfc_sli_ringpostbuf_get(phba, pring, dma_addr); | |
805 | } | |
4cc0e56e JS |
806 | if (dmabuf == NULL) |
807 | goto error_ct_unsol_exit; | |
f1c3b0fc JS |
808 | ct_req = (struct lpfc_sli_ct_request *)dmabuf->virt; |
809 | evt_req_id = ct_req->FsType; | |
810 | cmd = ct_req->CommandResponse.bits.CmdRsp; | |
811 | len = ct_req->CommandResponse.bits.Size; | |
812 | if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) | |
813 | lpfc_sli_ringpostbuf_put(phba, pring, dmabuf); | |
814 | ||
4fede78f | 815 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
f1c3b0fc | 816 | list_for_each_entry(evt, &phba->ct_ev_waiters, node) { |
4cc0e56e JS |
817 | if (!(evt->type_mask & FC_REG_CT_EVENT) || |
818 | evt->req_id != evt_req_id) | |
f1c3b0fc JS |
819 | continue; |
820 | ||
4cc0e56e JS |
821 | lpfc_bsg_event_ref(evt); |
822 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
f1c3b0fc | 823 | evt_dat = kzalloc(sizeof(*evt_dat), GFP_KERNEL); |
4cc0e56e JS |
824 | if (evt_dat == NULL) { |
825 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
826 | lpfc_bsg_event_unref(evt); | |
f1c3b0fc JS |
827 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
828 | "2614 Memory allocation failed for " | |
829 | "CT event\n"); | |
830 | break; | |
831 | } | |
832 | ||
f1c3b0fc JS |
833 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
834 | /* take accumulated byte count from the last iocbq */ | |
835 | iocbq = list_entry(head.prev, typeof(*iocbq), list); | |
836 | evt_dat->len = iocbq->iocb.unsli3.rcvsli3.acc_len; | |
837 | } else { | |
838 | list_for_each_entry(iocbq, &head, list) { | |
839 | for (i = 0; i < iocbq->iocb.ulpBdeCount; i++) | |
840 | evt_dat->len += | |
841 | iocbq->iocb.un.cont64[i].tus.f.bdeSize; | |
842 | } | |
843 | } | |
844 | ||
845 | evt_dat->data = kzalloc(evt_dat->len, GFP_KERNEL); | |
4cc0e56e | 846 | if (evt_dat->data == NULL) { |
f1c3b0fc JS |
847 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
848 | "2615 Memory allocation failed for " | |
849 | "CT event data, size %d\n", | |
850 | evt_dat->len); | |
851 | kfree(evt_dat); | |
4fede78f | 852 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
4cc0e56e | 853 | lpfc_bsg_event_unref(evt); |
4fede78f | 854 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
f1c3b0fc JS |
855 | goto error_ct_unsol_exit; |
856 | } | |
857 | ||
858 | list_for_each_entry(iocbq, &head, list) { | |
4cc0e56e | 859 | size = 0; |
f1c3b0fc JS |
860 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
861 | bdeBuf1 = iocbq->context2; | |
862 | bdeBuf2 = iocbq->context3; | |
863 | } | |
864 | for (i = 0; i < iocbq->iocb.ulpBdeCount; i++) { | |
f1c3b0fc JS |
865 | if (phba->sli3_options & |
866 | LPFC_SLI3_HBQ_ENABLED) { | |
867 | if (i == 0) { | |
868 | hbqe = (struct lpfc_hbq_entry *) | |
869 | &iocbq->iocb.un.ulpWord[0]; | |
870 | size = hbqe->bde.tus.f.bdeSize; | |
871 | dmabuf = bdeBuf1; | |
872 | } else if (i == 1) { | |
873 | hbqe = (struct lpfc_hbq_entry *) | |
874 | &iocbq->iocb.unsli3. | |
875 | sli3Words[4]; | |
876 | size = hbqe->bde.tus.f.bdeSize; | |
877 | dmabuf = bdeBuf2; | |
878 | } | |
879 | if ((offset + size) > evt_dat->len) | |
880 | size = evt_dat->len - offset; | |
881 | } else { | |
882 | size = iocbq->iocb.un.cont64[i]. | |
883 | tus.f.bdeSize; | |
884 | bde = &iocbq->iocb.un.cont64[i]; | |
885 | dma_addr = getPaddr(bde->addrHigh, | |
886 | bde->addrLow); | |
887 | dmabuf = lpfc_sli_ringpostbuf_get(phba, | |
888 | pring, dma_addr); | |
889 | } | |
890 | if (!dmabuf) { | |
891 | lpfc_printf_log(phba, KERN_ERR, | |
892 | LOG_LIBDFC, "2616 No dmabuf " | |
893 | "found for iocbq 0x%p\n", | |
894 | iocbq); | |
895 | kfree(evt_dat->data); | |
896 | kfree(evt_dat); | |
4fede78f JS |
897 | spin_lock_irqsave(&phba->ct_ev_lock, |
898 | flags); | |
4cc0e56e | 899 | lpfc_bsg_event_unref(evt); |
4fede78f JS |
900 | spin_unlock_irqrestore( |
901 | &phba->ct_ev_lock, flags); | |
f1c3b0fc JS |
902 | goto error_ct_unsol_exit; |
903 | } | |
904 | memcpy((char *)(evt_dat->data) + offset, | |
905 | dmabuf->virt, size); | |
906 | offset += size; | |
907 | if (evt_req_id != SLI_CT_ELX_LOOPBACK && | |
908 | !(phba->sli3_options & | |
909 | LPFC_SLI3_HBQ_ENABLED)) { | |
910 | lpfc_sli_ringpostbuf_put(phba, pring, | |
911 | dmabuf); | |
912 | } else { | |
913 | switch (cmd) { | |
4cc0e56e | 914 | case ELX_LOOPBACK_DATA: |
3b5dd52a | 915 | diag_cmd_data_free(phba, |
4cc0e56e JS |
916 | (struct lpfc_dmabufext *) |
917 | dmabuf); | |
918 | break; | |
f1c3b0fc | 919 | case ELX_LOOPBACK_XRI_SETUP: |
4cc0e56e JS |
920 | if ((phba->sli_rev == |
921 | LPFC_SLI_REV2) || | |
922 | (phba->sli3_options & | |
923 | LPFC_SLI3_HBQ_ENABLED | |
924 | )) { | |
925 | lpfc_in_buf_free(phba, | |
926 | dmabuf); | |
927 | } else { | |
f1c3b0fc JS |
928 | lpfc_post_buffer(phba, |
929 | pring, | |
930 | 1); | |
4cc0e56e | 931 | } |
f1c3b0fc JS |
932 | break; |
933 | default: | |
934 | if (!(phba->sli3_options & | |
935 | LPFC_SLI3_HBQ_ENABLED)) | |
936 | lpfc_post_buffer(phba, | |
937 | pring, | |
938 | 1); | |
939 | break; | |
940 | } | |
941 | } | |
942 | } | |
943 | } | |
944 | ||
4fede78f | 945 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
f1c3b0fc JS |
946 | if (phba->sli_rev == LPFC_SLI_REV4) { |
947 | evt_dat->immed_dat = phba->ctx_idx; | |
948 | phba->ctx_idx = (phba->ctx_idx + 1) % 64; | |
949 | phba->ct_ctx[evt_dat->immed_dat].oxid = | |
950 | piocbq->iocb.ulpContext; | |
951 | phba->ct_ctx[evt_dat->immed_dat].SID = | |
952 | piocbq->iocb.un.rcvels.remoteID; | |
953 | } else | |
954 | evt_dat->immed_dat = piocbq->iocb.ulpContext; | |
955 | ||
956 | evt_dat->type = FC_REG_CT_EVENT; | |
957 | list_add(&evt_dat->node, &evt->events_to_see); | |
4cc0e56e JS |
958 | if (evt_req_id == SLI_CT_ELX_LOOPBACK) { |
959 | wake_up_interruptible(&evt->wq); | |
960 | lpfc_bsg_event_unref(evt); | |
f1c3b0fc | 961 | break; |
4cc0e56e JS |
962 | } |
963 | ||
964 | list_move(evt->events_to_see.prev, &evt->events_to_get); | |
965 | lpfc_bsg_event_unref(evt); | |
966 | ||
967 | job = evt->set_job; | |
968 | evt->set_job = NULL; | |
969 | if (job) { | |
970 | job->reply->reply_payload_rcv_len = size; | |
971 | /* make error code available to userspace */ | |
972 | job->reply->result = 0; | |
973 | job->dd_data = NULL; | |
974 | /* complete the job back to userspace */ | |
975 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
976 | job->job_done(job); | |
977 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
978 | } | |
f1c3b0fc | 979 | } |
4fede78f | 980 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
f1c3b0fc JS |
981 | |
982 | error_ct_unsol_exit: | |
983 | if (!list_empty(&head)) | |
984 | list_del(&head); | |
4cc0e56e JS |
985 | if (evt_req_id == SLI_CT_ELX_LOOPBACK) |
986 | return 0; | |
4fede78f | 987 | return 1; |
f1c3b0fc JS |
988 | } |
989 | ||
990 | /** | |
4cc0e56e | 991 | * lpfc_bsg_hba_set_event - process a SET_EVENT bsg vendor command |
f1c3b0fc | 992 | * @job: SET_EVENT fc_bsg_job |
3b5dd52a | 993 | **/ |
f1c3b0fc | 994 | static int |
4cc0e56e | 995 | lpfc_bsg_hba_set_event(struct fc_bsg_job *job) |
f1c3b0fc JS |
996 | { |
997 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
998 | struct lpfc_hba *phba = vport->phba; | |
999 | struct set_ct_event *event_req; | |
4cc0e56e | 1000 | struct lpfc_bsg_event *evt; |
f1c3b0fc | 1001 | int rc = 0; |
4cc0e56e JS |
1002 | struct bsg_job_data *dd_data = NULL; |
1003 | uint32_t ev_mask; | |
1004 | unsigned long flags; | |
f1c3b0fc JS |
1005 | |
1006 | if (job->request_len < | |
1007 | sizeof(struct fc_bsg_request) + sizeof(struct set_ct_event)) { | |
1008 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1009 | "2612 Received SET_CT_EVENT below minimum " | |
1010 | "size\n"); | |
4cc0e56e JS |
1011 | rc = -EINVAL; |
1012 | goto job_error; | |
1013 | } | |
1014 | ||
1015 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); | |
1016 | if (dd_data == NULL) { | |
1017 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1018 | "2734 Failed allocation of dd_data\n"); | |
1019 | rc = -ENOMEM; | |
1020 | goto job_error; | |
f1c3b0fc JS |
1021 | } |
1022 | ||
1023 | event_req = (struct set_ct_event *) | |
1024 | job->request->rqst_data.h_vendor.vendor_cmd; | |
4cc0e56e JS |
1025 | ev_mask = ((uint32_t)(unsigned long)event_req->type_mask & |
1026 | FC_REG_EVENT_MASK); | |
4fede78f | 1027 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
f1c3b0fc JS |
1028 | list_for_each_entry(evt, &phba->ct_ev_waiters, node) { |
1029 | if (evt->reg_id == event_req->ev_reg_id) { | |
4cc0e56e | 1030 | lpfc_bsg_event_ref(evt); |
f1c3b0fc JS |
1031 | evt->wait_time_stamp = jiffies; |
1032 | break; | |
1033 | } | |
1034 | } | |
4fede78f | 1035 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
f1c3b0fc JS |
1036 | |
1037 | if (&evt->node == &phba->ct_ev_waiters) { | |
1038 | /* no event waiting struct yet - first call */ | |
4cc0e56e | 1039 | evt = lpfc_bsg_event_new(ev_mask, event_req->ev_reg_id, |
f1c3b0fc JS |
1040 | event_req->ev_req_id); |
1041 | if (!evt) { | |
1042 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1043 | "2617 Failed allocation of event " | |
1044 | "waiter\n"); | |
4cc0e56e JS |
1045 | rc = -ENOMEM; |
1046 | goto job_error; | |
f1c3b0fc JS |
1047 | } |
1048 | ||
4fede78f | 1049 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
f1c3b0fc | 1050 | list_add(&evt->node, &phba->ct_ev_waiters); |
4cc0e56e JS |
1051 | lpfc_bsg_event_ref(evt); |
1052 | evt->wait_time_stamp = jiffies; | |
4fede78f | 1053 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
f1c3b0fc JS |
1054 | } |
1055 | ||
4fede78f | 1056 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
4cc0e56e JS |
1057 | evt->waiting = 1; |
1058 | dd_data->type = TYPE_EVT; | |
1059 | dd_data->context_un.evt = evt; | |
1060 | evt->set_job = job; /* for unsolicited command */ | |
1061 | job->dd_data = dd_data; /* for fc transport timeout callback*/ | |
4fede78f | 1062 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
4cc0e56e | 1063 | return 0; /* call job done later */ |
f1c3b0fc | 1064 | |
4cc0e56e JS |
1065 | job_error: |
1066 | if (dd_data != NULL) | |
1067 | kfree(dd_data); | |
f1c3b0fc | 1068 | |
4cc0e56e JS |
1069 | job->dd_data = NULL; |
1070 | return rc; | |
f1c3b0fc JS |
1071 | } |
1072 | ||
1073 | /** | |
4cc0e56e | 1074 | * lpfc_bsg_hba_get_event - process a GET_EVENT bsg vendor command |
f1c3b0fc | 1075 | * @job: GET_EVENT fc_bsg_job |
3b5dd52a | 1076 | **/ |
f1c3b0fc | 1077 | static int |
4cc0e56e | 1078 | lpfc_bsg_hba_get_event(struct fc_bsg_job *job) |
f1c3b0fc JS |
1079 | { |
1080 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
1081 | struct lpfc_hba *phba = vport->phba; | |
1082 | struct get_ct_event *event_req; | |
1083 | struct get_ct_event_reply *event_reply; | |
4cc0e56e | 1084 | struct lpfc_bsg_event *evt; |
f1c3b0fc | 1085 | struct event_data *evt_dat = NULL; |
4fede78f | 1086 | unsigned long flags; |
4cc0e56e | 1087 | uint32_t rc = 0; |
f1c3b0fc JS |
1088 | |
1089 | if (job->request_len < | |
1090 | sizeof(struct fc_bsg_request) + sizeof(struct get_ct_event)) { | |
1091 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1092 | "2613 Received GET_CT_EVENT request below " | |
1093 | "minimum size\n"); | |
4cc0e56e JS |
1094 | rc = -EINVAL; |
1095 | goto job_error; | |
f1c3b0fc JS |
1096 | } |
1097 | ||
1098 | event_req = (struct get_ct_event *) | |
1099 | job->request->rqst_data.h_vendor.vendor_cmd; | |
1100 | ||
1101 | event_reply = (struct get_ct_event_reply *) | |
1102 | job->reply->reply_data.vendor_reply.vendor_rsp; | |
4fede78f | 1103 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
f1c3b0fc JS |
1104 | list_for_each_entry(evt, &phba->ct_ev_waiters, node) { |
1105 | if (evt->reg_id == event_req->ev_reg_id) { | |
1106 | if (list_empty(&evt->events_to_get)) | |
1107 | break; | |
4cc0e56e | 1108 | lpfc_bsg_event_ref(evt); |
f1c3b0fc JS |
1109 | evt->wait_time_stamp = jiffies; |
1110 | evt_dat = list_entry(evt->events_to_get.prev, | |
1111 | struct event_data, node); | |
1112 | list_del(&evt_dat->node); | |
1113 | break; | |
1114 | } | |
1115 | } | |
4fede78f | 1116 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
f1c3b0fc | 1117 | |
4cc0e56e JS |
1118 | /* The app may continue to ask for event data until it gets |
1119 | * an error indicating that there isn't anymore | |
1120 | */ | |
1121 | if (evt_dat == NULL) { | |
f1c3b0fc JS |
1122 | job->reply->reply_payload_rcv_len = 0; |
1123 | rc = -ENOENT; | |
4cc0e56e | 1124 | goto job_error; |
f1c3b0fc JS |
1125 | } |
1126 | ||
4cc0e56e JS |
1127 | if (evt_dat->len > job->request_payload.payload_len) { |
1128 | evt_dat->len = job->request_payload.payload_len; | |
1129 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1130 | "2618 Truncated event data at %d " | |
1131 | "bytes\n", | |
1132 | job->request_payload.payload_len); | |
f1c3b0fc JS |
1133 | } |
1134 | ||
4cc0e56e | 1135 | event_reply->type = evt_dat->type; |
f1c3b0fc | 1136 | event_reply->immed_data = evt_dat->immed_dat; |
f1c3b0fc JS |
1137 | if (evt_dat->len > 0) |
1138 | job->reply->reply_payload_rcv_len = | |
4cc0e56e JS |
1139 | sg_copy_from_buffer(job->request_payload.sg_list, |
1140 | job->request_payload.sg_cnt, | |
f1c3b0fc JS |
1141 | evt_dat->data, evt_dat->len); |
1142 | else | |
1143 | job->reply->reply_payload_rcv_len = 0; | |
f1c3b0fc | 1144 | |
4cc0e56e | 1145 | if (evt_dat) { |
f1c3b0fc | 1146 | kfree(evt_dat->data); |
4cc0e56e JS |
1147 | kfree(evt_dat); |
1148 | } | |
1149 | ||
4fede78f | 1150 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
4cc0e56e | 1151 | lpfc_bsg_event_unref(evt); |
4fede78f | 1152 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
4cc0e56e JS |
1153 | job->dd_data = NULL; |
1154 | job->reply->result = 0; | |
f1c3b0fc | 1155 | job->job_done(job); |
4cc0e56e | 1156 | return 0; |
f1c3b0fc | 1157 | |
4cc0e56e JS |
1158 | job_error: |
1159 | job->dd_data = NULL; | |
1160 | job->reply->result = rc; | |
f1c3b0fc JS |
1161 | return rc; |
1162 | } | |
1163 | ||
1164 | /** | |
3b5dd52a JS |
1165 | * lpfc_issue_ct_rsp_cmp - lpfc_issue_ct_rsp's completion handler |
1166 | * @phba: Pointer to HBA context object. | |
1167 | * @cmdiocbq: Pointer to command iocb. | |
1168 | * @rspiocbq: Pointer to response iocb. | |
1169 | * | |
1170 | * This function is the completion handler for iocbs issued using | |
1171 | * lpfc_issue_ct_rsp_cmp function. This function is called by the | |
1172 | * ring event handler function without any lock held. This function | |
1173 | * can be called from both worker thread context and interrupt | |
1174 | * context. This function also can be called from other thread which | |
1175 | * cleans up the SLI layer objects. | |
1176 | * This function copy the contents of the response iocb to the | |
1177 | * response iocb memory object provided by the caller of | |
1178 | * lpfc_sli_issue_iocb_wait and then wakes up the thread which | |
1179 | * sleeps for the iocb completion. | |
1180 | **/ | |
1181 | static void | |
1182 | lpfc_issue_ct_rsp_cmp(struct lpfc_hba *phba, | |
1183 | struct lpfc_iocbq *cmdiocbq, | |
1184 | struct lpfc_iocbq *rspiocbq) | |
1185 | { | |
1186 | struct bsg_job_data *dd_data; | |
1187 | struct fc_bsg_job *job; | |
1188 | IOCB_t *rsp; | |
1189 | struct lpfc_dmabuf *bmp; | |
1190 | struct lpfc_nodelist *ndlp; | |
1191 | unsigned long flags; | |
1192 | int rc = 0; | |
1193 | ||
1194 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
1195 | dd_data = cmdiocbq->context1; | |
1196 | /* normal completion and timeout crossed paths, already done */ | |
1197 | if (!dd_data) { | |
1198 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
1199 | return; | |
1200 | } | |
1201 | ||
1202 | job = dd_data->context_un.iocb.set_job; | |
1203 | bmp = dd_data->context_un.iocb.bmp; | |
1204 | rsp = &rspiocbq->iocb; | |
1205 | ndlp = dd_data->context_un.iocb.ndlp; | |
1206 | ||
1207 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, | |
1208 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
1209 | ||
1210 | if (rsp->ulpStatus) { | |
1211 | if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) { | |
1212 | switch (rsp->un.ulpWord[4] & 0xff) { | |
1213 | case IOERR_SEQUENCE_TIMEOUT: | |
1214 | rc = -ETIMEDOUT; | |
1215 | break; | |
1216 | case IOERR_INVALID_RPI: | |
1217 | rc = -EFAULT; | |
1218 | break; | |
1219 | default: | |
1220 | rc = -EACCES; | |
1221 | break; | |
1222 | } | |
1223 | } else | |
1224 | rc = -EACCES; | |
1225 | } else | |
1226 | job->reply->reply_payload_rcv_len = | |
1227 | rsp->un.genreq64.bdl.bdeSize; | |
1228 | ||
1229 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); | |
1230 | lpfc_sli_release_iocbq(phba, cmdiocbq); | |
1231 | lpfc_nlp_put(ndlp); | |
1232 | kfree(bmp); | |
1233 | kfree(dd_data); | |
1234 | /* make error code available to userspace */ | |
1235 | job->reply->result = rc; | |
1236 | job->dd_data = NULL; | |
1237 | /* complete the job back to userspace */ | |
1238 | job->job_done(job); | |
1239 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
1240 | return; | |
1241 | } | |
1242 | ||
1243 | /** | |
1244 | * lpfc_issue_ct_rsp - issue a ct response | |
1245 | * @phba: Pointer to HBA context object. | |
1246 | * @job: Pointer to the job object. | |
1247 | * @tag: tag index value into the ports context exchange array. | |
1248 | * @bmp: Pointer to a dma buffer descriptor. | |
1249 | * @num_entry: Number of enties in the bde. | |
1250 | **/ | |
f1c3b0fc | 1251 | static int |
3b5dd52a JS |
1252 | lpfc_issue_ct_rsp(struct lpfc_hba *phba, struct fc_bsg_job *job, uint32_t tag, |
1253 | struct lpfc_dmabuf *bmp, int num_entry) | |
f1c3b0fc | 1254 | { |
3b5dd52a JS |
1255 | IOCB_t *icmd; |
1256 | struct lpfc_iocbq *ctiocb = NULL; | |
1257 | int rc = 0; | |
1258 | struct lpfc_nodelist *ndlp = NULL; | |
1259 | struct bsg_job_data *dd_data; | |
1260 | uint32_t creg_val; | |
f1c3b0fc | 1261 | |
3b5dd52a JS |
1262 | /* allocate our bsg tracking structure */ |
1263 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); | |
1264 | if (!dd_data) { | |
1265 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1266 | "2736 Failed allocation of dd_data\n"); | |
1267 | rc = -ENOMEM; | |
1268 | goto no_dd_data; | |
1269 | } | |
f1c3b0fc | 1270 | |
3b5dd52a JS |
1271 | /* Allocate buffer for command iocb */ |
1272 | ctiocb = lpfc_sli_get_iocbq(phba); | |
1273 | if (!ctiocb) { | |
1274 | rc = ENOMEM; | |
1275 | goto no_ctiocb; | |
1276 | } | |
1277 | ||
1278 | icmd = &ctiocb->iocb; | |
1279 | icmd->un.xseq64.bdl.ulpIoTag32 = 0; | |
1280 | icmd->un.xseq64.bdl.addrHigh = putPaddrHigh(bmp->phys); | |
1281 | icmd->un.xseq64.bdl.addrLow = putPaddrLow(bmp->phys); | |
1282 | icmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; | |
1283 | icmd->un.xseq64.bdl.bdeSize = (num_entry * sizeof(struct ulp_bde64)); | |
1284 | icmd->un.xseq64.w5.hcsw.Fctl = (LS | LA); | |
1285 | icmd->un.xseq64.w5.hcsw.Dfctl = 0; | |
1286 | icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_SOL_CTL; | |
1287 | icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT; | |
1288 | ||
1289 | /* Fill in rest of iocb */ | |
1290 | icmd->ulpCommand = CMD_XMIT_SEQUENCE64_CX; | |
1291 | icmd->ulpBdeCount = 1; | |
1292 | icmd->ulpLe = 1; | |
1293 | icmd->ulpClass = CLASS3; | |
1294 | if (phba->sli_rev == LPFC_SLI_REV4) { | |
1295 | /* Do not issue unsol response if oxid not marked as valid */ | |
1296 | if (!(phba->ct_ctx[tag].flags & UNSOL_VALID)) { | |
1297 | rc = IOCB_ERROR; | |
1298 | goto issue_ct_rsp_exit; | |
1299 | } | |
1300 | icmd->ulpContext = phba->ct_ctx[tag].oxid; | |
1301 | ndlp = lpfc_findnode_did(phba->pport, phba->ct_ctx[tag].SID); | |
1302 | if (!ndlp) { | |
1303 | lpfc_printf_log(phba, KERN_WARNING, LOG_ELS, | |
1304 | "2721 ndlp null for oxid %x SID %x\n", | |
1305 | icmd->ulpContext, | |
1306 | phba->ct_ctx[tag].SID); | |
1307 | rc = IOCB_ERROR; | |
1308 | goto issue_ct_rsp_exit; | |
1309 | } | |
1310 | icmd->un.ulpWord[3] = ndlp->nlp_rpi; | |
1311 | /* The exchange is done, mark the entry as invalid */ | |
1312 | phba->ct_ctx[tag].flags &= ~UNSOL_VALID; | |
1313 | } else | |
1314 | icmd->ulpContext = (ushort) tag; | |
1315 | ||
1316 | icmd->ulpTimeout = phba->fc_ratov * 2; | |
1317 | ||
1318 | /* Xmit CT response on exchange <xid> */ | |
1319 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS, | |
1320 | "2722 Xmit CT response on exchange x%x Data: x%x x%x\n", | |
1321 | icmd->ulpContext, icmd->ulpIoTag, phba->link_state); | |
1322 | ||
1323 | ctiocb->iocb_cmpl = NULL; | |
1324 | ctiocb->iocb_flag |= LPFC_IO_LIBDFC; | |
1325 | ctiocb->vport = phba->pport; | |
1326 | ctiocb->context3 = bmp; | |
1327 | ||
1328 | ctiocb->iocb_cmpl = lpfc_issue_ct_rsp_cmp; | |
1329 | ctiocb->context1 = dd_data; | |
1330 | ctiocb->context2 = NULL; | |
1331 | dd_data->type = TYPE_IOCB; | |
1332 | dd_data->context_un.iocb.cmdiocbq = ctiocb; | |
1333 | dd_data->context_un.iocb.rspiocbq = NULL; | |
1334 | dd_data->context_un.iocb.set_job = job; | |
1335 | dd_data->context_un.iocb.bmp = bmp; | |
1336 | dd_data->context_un.iocb.ndlp = ndlp; | |
1337 | ||
1338 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { | |
1339 | creg_val = readl(phba->HCregaddr); | |
1340 | creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); | |
1341 | writel(creg_val, phba->HCregaddr); | |
1342 | readl(phba->HCregaddr); /* flush */ | |
f1c3b0fc | 1343 | } |
4cc0e56e | 1344 | |
3b5dd52a JS |
1345 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0); |
1346 | ||
1347 | if (rc == IOCB_SUCCESS) | |
1348 | return 0; /* done for now */ | |
1349 | ||
1350 | issue_ct_rsp_exit: | |
1351 | lpfc_sli_release_iocbq(phba, ctiocb); | |
1352 | no_ctiocb: | |
1353 | kfree(dd_data); | |
1354 | no_dd_data: | |
4cc0e56e | 1355 | return rc; |
f1c3b0fc JS |
1356 | } |
1357 | ||
1358 | /** | |
3b5dd52a JS |
1359 | * lpfc_bsg_send_mgmt_rsp - process a SEND_MGMT_RESP bsg vendor command |
1360 | * @job: SEND_MGMT_RESP fc_bsg_job | |
1361 | **/ | |
1362 | static int | |
1363 | lpfc_bsg_send_mgmt_rsp(struct fc_bsg_job *job) | |
f1c3b0fc | 1364 | { |
3b5dd52a JS |
1365 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; |
1366 | struct lpfc_hba *phba = vport->phba; | |
1367 | struct send_mgmt_resp *mgmt_resp = (struct send_mgmt_resp *) | |
1368 | job->request->rqst_data.h_vendor.vendor_cmd; | |
1369 | struct ulp_bde64 *bpl; | |
1370 | struct lpfc_dmabuf *bmp = NULL; | |
1371 | struct scatterlist *sgel = NULL; | |
1372 | int request_nseg; | |
1373 | int numbde; | |
1374 | dma_addr_t busaddr; | |
1375 | uint32_t tag = mgmt_resp->tag; | |
1376 | unsigned long reqbfrcnt = | |
1377 | (unsigned long)job->request_payload.payload_len; | |
1378 | int rc = 0; | |
f1c3b0fc | 1379 | |
3b5dd52a JS |
1380 | /* in case no data is transferred */ |
1381 | job->reply->reply_payload_rcv_len = 0; | |
1382 | ||
1383 | if (!reqbfrcnt || (reqbfrcnt > (80 * BUF_SZ_4K))) { | |
1384 | rc = -ERANGE; | |
1385 | goto send_mgmt_rsp_exit; | |
1386 | } | |
1387 | ||
1388 | bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
1389 | if (!bmp) { | |
1390 | rc = -ENOMEM; | |
1391 | goto send_mgmt_rsp_exit; | |
1392 | } | |
1393 | ||
1394 | bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys); | |
1395 | if (!bmp->virt) { | |
1396 | rc = -ENOMEM; | |
1397 | goto send_mgmt_rsp_free_bmp; | |
1398 | } | |
1399 | ||
1400 | INIT_LIST_HEAD(&bmp->list); | |
1401 | bpl = (struct ulp_bde64 *) bmp->virt; | |
1402 | request_nseg = pci_map_sg(phba->pcidev, job->request_payload.sg_list, | |
1403 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
1404 | for_each_sg(job->request_payload.sg_list, sgel, request_nseg, numbde) { | |
1405 | busaddr = sg_dma_address(sgel); | |
1406 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
1407 | bpl->tus.f.bdeSize = sg_dma_len(sgel); | |
1408 | bpl->tus.w = cpu_to_le32(bpl->tus.w); | |
1409 | bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr)); | |
1410 | bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr)); | |
1411 | bpl++; | |
f1c3b0fc JS |
1412 | } |
1413 | ||
3b5dd52a JS |
1414 | rc = lpfc_issue_ct_rsp(phba, job, tag, bmp, request_nseg); |
1415 | ||
1416 | if (rc == IOCB_SUCCESS) | |
1417 | return 0; /* done for now */ | |
1418 | ||
1419 | /* TBD need to handle a timeout */ | |
1420 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, | |
1421 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
1422 | rc = -EACCES; | |
1423 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); | |
1424 | ||
1425 | send_mgmt_rsp_free_bmp: | |
1426 | kfree(bmp); | |
1427 | send_mgmt_rsp_exit: | |
1428 | /* make error code available to userspace */ | |
1429 | job->reply->result = rc; | |
1430 | job->dd_data = NULL; | |
f1c3b0fc JS |
1431 | return rc; |
1432 | } | |
1433 | ||
1434 | /** | |
3b5dd52a JS |
1435 | * lpfc_bsg_diag_mode - process a LPFC_BSG_VENDOR_DIAG_MODE bsg vendor command |
1436 | * @job: LPFC_BSG_VENDOR_DIAG_MODE | |
f1c3b0fc | 1437 | * |
3b5dd52a JS |
1438 | * This function is responsible for placing a port into diagnostic loopback |
1439 | * mode in order to perform a diagnostic loopback test. | |
1440 | * All new scsi requests are blocked, a small delay is used to allow the | |
1441 | * scsi requests to complete then the link is brought down. If the link is | |
1442 | * is placed in loopback mode then scsi requests are again allowed | |
1443 | * so the scsi mid-layer doesn't give up on the port. | |
1444 | * All of this is done in-line. | |
f1c3b0fc | 1445 | */ |
3b5dd52a JS |
1446 | static int |
1447 | lpfc_bsg_diag_mode(struct fc_bsg_job *job) | |
f1c3b0fc | 1448 | { |
3b5dd52a | 1449 | struct Scsi_Host *shost = job->shost; |
f1c3b0fc JS |
1450 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; |
1451 | struct lpfc_hba *phba = vport->phba; | |
3b5dd52a JS |
1452 | struct diag_mode_set *loopback_mode; |
1453 | struct lpfc_sli *psli = &phba->sli; | |
1454 | struct lpfc_sli_ring *pring = &psli->ring[LPFC_FCP_RING]; | |
1455 | uint32_t link_flags; | |
1456 | uint32_t timeout; | |
1457 | struct lpfc_vport **vports; | |
1458 | LPFC_MBOXQ_t *pmboxq; | |
1459 | int mbxstatus; | |
1460 | int i = 0; | |
1461 | int rc = 0; | |
f1c3b0fc | 1462 | |
3b5dd52a JS |
1463 | /* no data to return just the return code */ |
1464 | job->reply->reply_payload_rcv_len = 0; | |
1465 | ||
1466 | if (job->request_len < | |
1467 | sizeof(struct fc_bsg_request) + sizeof(struct diag_mode_set)) { | |
1468 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1469 | "2738 Received DIAG MODE request below minimum " | |
1470 | "size\n"); | |
1471 | rc = -EINVAL; | |
1472 | goto job_error; | |
1473 | } | |
1474 | ||
1475 | loopback_mode = (struct diag_mode_set *) | |
1476 | job->request->rqst_data.h_vendor.vendor_cmd; | |
1477 | link_flags = loopback_mode->type; | |
1478 | timeout = loopback_mode->timeout; | |
1479 | ||
1480 | if ((phba->link_state == LPFC_HBA_ERROR) || | |
1481 | (psli->sli_flag & LPFC_BLOCK_MGMT_IO) || | |
1482 | (!(psli->sli_flag & LPFC_SLI_ACTIVE))) { | |
1483 | rc = -EACCES; | |
1484 | goto job_error; | |
1485 | } | |
1486 | ||
1487 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
1488 | if (!pmboxq) { | |
1489 | rc = -ENOMEM; | |
1490 | goto job_error; | |
1491 | } | |
1492 | ||
1493 | vports = lpfc_create_vport_work_array(phba); | |
1494 | if (vports) { | |
1495 | for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) { | |
1496 | shost = lpfc_shost_from_vport(vports[i]); | |
1497 | scsi_block_requests(shost); | |
1498 | } | |
1499 | ||
1500 | lpfc_destroy_vport_work_array(phba, vports); | |
1501 | } else { | |
1502 | shost = lpfc_shost_from_vport(phba->pport); | |
1503 | scsi_block_requests(shost); | |
1504 | } | |
1505 | ||
1506 | while (pring->txcmplq_cnt) { | |
1507 | if (i++ > 500) /* wait up to 5 seconds */ | |
1508 | break; | |
1509 | ||
1510 | msleep(10); | |
1511 | } | |
1512 | ||
1513 | memset((void *)pmboxq, 0, sizeof(LPFC_MBOXQ_t)); | |
1514 | pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK; | |
1515 | pmboxq->u.mb.mbxOwner = OWN_HOST; | |
1516 | ||
1517 | mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO); | |
1518 | ||
1519 | if ((mbxstatus == MBX_SUCCESS) && (pmboxq->u.mb.mbxStatus == 0)) { | |
1520 | /* wait for link down before proceeding */ | |
1521 | i = 0; | |
1522 | while (phba->link_state != LPFC_LINK_DOWN) { | |
1523 | if (i++ > timeout) { | |
1524 | rc = -ETIMEDOUT; | |
1525 | goto loopback_mode_exit; | |
1526 | } | |
1527 | ||
1528 | msleep(10); | |
1529 | } | |
1530 | ||
1531 | memset((void *)pmboxq, 0, sizeof(LPFC_MBOXQ_t)); | |
1532 | if (link_flags == INTERNAL_LOOP_BACK) | |
1533 | pmboxq->u.mb.un.varInitLnk.link_flags = FLAGS_LOCAL_LB; | |
1534 | else | |
1535 | pmboxq->u.mb.un.varInitLnk.link_flags = | |
1536 | FLAGS_TOPOLOGY_MODE_LOOP; | |
1537 | ||
1538 | pmboxq->u.mb.mbxCommand = MBX_INIT_LINK; | |
1539 | pmboxq->u.mb.mbxOwner = OWN_HOST; | |
1540 | ||
1541 | mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, | |
1542 | LPFC_MBOX_TMO); | |
1543 | ||
1544 | if ((mbxstatus != MBX_SUCCESS) || (pmboxq->u.mb.mbxStatus)) | |
1545 | rc = -ENODEV; | |
1546 | else { | |
1547 | phba->link_flag |= LS_LOOPBACK_MODE; | |
1548 | /* wait for the link attention interrupt */ | |
1549 | msleep(100); | |
1550 | ||
1551 | i = 0; | |
1552 | while (phba->link_state != LPFC_HBA_READY) { | |
1553 | if (i++ > timeout) { | |
1554 | rc = -ETIMEDOUT; | |
1555 | break; | |
1556 | } | |
1557 | ||
1558 | msleep(10); | |
1559 | } | |
1560 | } | |
1561 | ||
1562 | } else | |
1563 | rc = -ENODEV; | |
1564 | ||
1565 | loopback_mode_exit: | |
1566 | vports = lpfc_create_vport_work_array(phba); | |
1567 | if (vports) { | |
1568 | for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) { | |
1569 | shost = lpfc_shost_from_vport(vports[i]); | |
1570 | scsi_unblock_requests(shost); | |
1571 | } | |
1572 | lpfc_destroy_vport_work_array(phba, vports); | |
1573 | } else { | |
1574 | shost = lpfc_shost_from_vport(phba->pport); | |
1575 | scsi_unblock_requests(shost); | |
1576 | } | |
1577 | ||
1578 | /* | |
1579 | * Let SLI layer release mboxq if mbox command completed after timeout. | |
1580 | */ | |
1581 | if (mbxstatus != MBX_TIMEOUT) | |
1582 | mempool_free(pmboxq, phba->mbox_mem_pool); | |
1583 | ||
1584 | job_error: | |
1585 | /* make error code available to userspace */ | |
1586 | job->reply->result = rc; | |
1587 | /* complete the job back to userspace if no error */ | |
1588 | if (rc == 0) | |
1589 | job->job_done(job); | |
1590 | return rc; | |
1591 | } | |
1592 | ||
1593 | /** | |
1594 | * lpfcdiag_loop_self_reg - obtains a remote port login id | |
1595 | * @phba: Pointer to HBA context object | |
1596 | * @rpi: Pointer to a remote port login id | |
1597 | * | |
1598 | * This function obtains a remote port login id so the diag loopback test | |
1599 | * can send and receive its own unsolicited CT command. | |
1600 | **/ | |
1601 | static int lpfcdiag_loop_self_reg(struct lpfc_hba *phba, uint16_t * rpi) | |
1602 | { | |
1603 | LPFC_MBOXQ_t *mbox; | |
1604 | struct lpfc_dmabuf *dmabuff; | |
1605 | int status; | |
1606 | ||
1607 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
1608 | if (!mbox) | |
1609 | return ENOMEM; | |
1610 | ||
1611 | status = lpfc_reg_rpi(phba, 0, phba->pport->fc_myDID, | |
1612 | (uint8_t *)&phba->pport->fc_sparam, mbox, 0); | |
1613 | if (status) { | |
1614 | mempool_free(mbox, phba->mbox_mem_pool); | |
1615 | return ENOMEM; | |
1616 | } | |
1617 | ||
1618 | dmabuff = (struct lpfc_dmabuf *) mbox->context1; | |
1619 | mbox->context1 = NULL; | |
1620 | status = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); | |
1621 | ||
1622 | if ((status != MBX_SUCCESS) || (mbox->u.mb.mbxStatus)) { | |
1623 | lpfc_mbuf_free(phba, dmabuff->virt, dmabuff->phys); | |
1624 | kfree(dmabuff); | |
1625 | if (status != MBX_TIMEOUT) | |
1626 | mempool_free(mbox, phba->mbox_mem_pool); | |
1627 | return ENODEV; | |
1628 | } | |
1629 | ||
1630 | *rpi = mbox->u.mb.un.varWords[0]; | |
1631 | ||
1632 | lpfc_mbuf_free(phba, dmabuff->virt, dmabuff->phys); | |
1633 | kfree(dmabuff); | |
1634 | mempool_free(mbox, phba->mbox_mem_pool); | |
1635 | return 0; | |
1636 | } | |
1637 | ||
1638 | /** | |
1639 | * lpfcdiag_loop_self_unreg - unregs from the rpi | |
1640 | * @phba: Pointer to HBA context object | |
1641 | * @rpi: Remote port login id | |
1642 | * | |
1643 | * This function unregisters the rpi obtained in lpfcdiag_loop_self_reg | |
1644 | **/ | |
1645 | static int lpfcdiag_loop_self_unreg(struct lpfc_hba *phba, uint16_t rpi) | |
1646 | { | |
1647 | LPFC_MBOXQ_t *mbox; | |
1648 | int status; | |
1649 | ||
1650 | /* Allocate mboxq structure */ | |
1651 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
1652 | if (mbox == NULL) | |
1653 | return ENOMEM; | |
1654 | ||
1655 | lpfc_unreg_login(phba, 0, rpi, mbox); | |
1656 | status = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); | |
1657 | ||
1658 | if ((status != MBX_SUCCESS) || (mbox->u.mb.mbxStatus)) { | |
1659 | if (status != MBX_TIMEOUT) | |
1660 | mempool_free(mbox, phba->mbox_mem_pool); | |
1661 | return EIO; | |
1662 | } | |
1663 | ||
1664 | mempool_free(mbox, phba->mbox_mem_pool); | |
1665 | return 0; | |
1666 | } | |
1667 | ||
1668 | /** | |
1669 | * lpfcdiag_loop_get_xri - obtains the transmit and receive ids | |
1670 | * @phba: Pointer to HBA context object | |
1671 | * @rpi: Remote port login id | |
1672 | * @txxri: Pointer to transmit exchange id | |
1673 | * @rxxri: Pointer to response exchabge id | |
1674 | * | |
1675 | * This function obtains the transmit and receive ids required to send | |
1676 | * an unsolicited ct command with a payload. A special lpfc FsType and CmdRsp | |
1677 | * flags are used to the unsolicted response handler is able to process | |
1678 | * the ct command sent on the same port. | |
1679 | **/ | |
1680 | static int lpfcdiag_loop_get_xri(struct lpfc_hba *phba, uint16_t rpi, | |
1681 | uint16_t *txxri, uint16_t * rxxri) | |
1682 | { | |
1683 | struct lpfc_bsg_event *evt; | |
1684 | struct lpfc_iocbq *cmdiocbq, *rspiocbq; | |
1685 | IOCB_t *cmd, *rsp; | |
1686 | struct lpfc_dmabuf *dmabuf; | |
1687 | struct ulp_bde64 *bpl = NULL; | |
1688 | struct lpfc_sli_ct_request *ctreq = NULL; | |
1689 | int ret_val = 0; | |
1690 | unsigned long flags; | |
1691 | ||
1692 | *txxri = 0; | |
1693 | *rxxri = 0; | |
1694 | evt = lpfc_bsg_event_new(FC_REG_CT_EVENT, current->pid, | |
1695 | SLI_CT_ELX_LOOPBACK); | |
1696 | if (!evt) | |
1697 | return ENOMEM; | |
1698 | ||
1699 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
1700 | list_add(&evt->node, &phba->ct_ev_waiters); | |
1701 | lpfc_bsg_event_ref(evt); | |
1702 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
1703 | ||
1704 | cmdiocbq = lpfc_sli_get_iocbq(phba); | |
1705 | rspiocbq = lpfc_sli_get_iocbq(phba); | |
1706 | ||
1707 | dmabuf = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
1708 | if (dmabuf) { | |
1709 | dmabuf->virt = lpfc_mbuf_alloc(phba, 0, &dmabuf->phys); | |
1710 | INIT_LIST_HEAD(&dmabuf->list); | |
1711 | bpl = (struct ulp_bde64 *) dmabuf->virt; | |
1712 | memset(bpl, 0, sizeof(*bpl)); | |
1713 | ctreq = (struct lpfc_sli_ct_request *)(bpl + 1); | |
1714 | bpl->addrHigh = | |
1715 | le32_to_cpu(putPaddrHigh(dmabuf->phys + sizeof(*bpl))); | |
1716 | bpl->addrLow = | |
1717 | le32_to_cpu(putPaddrLow(dmabuf->phys + sizeof(*bpl))); | |
1718 | bpl->tus.f.bdeFlags = 0; | |
1719 | bpl->tus.f.bdeSize = ELX_LOOPBACK_HEADER_SZ; | |
1720 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
1721 | } | |
1722 | ||
1723 | if (cmdiocbq == NULL || rspiocbq == NULL || | |
1724 | dmabuf == NULL || bpl == NULL || ctreq == NULL) { | |
1725 | ret_val = ENOMEM; | |
1726 | goto err_get_xri_exit; | |
1727 | } | |
1728 | ||
1729 | cmd = &cmdiocbq->iocb; | |
1730 | rsp = &rspiocbq->iocb; | |
1731 | ||
1732 | memset(ctreq, 0, ELX_LOOPBACK_HEADER_SZ); | |
1733 | ||
1734 | ctreq->RevisionId.bits.Revision = SLI_CT_REVISION; | |
1735 | ctreq->RevisionId.bits.InId = 0; | |
1736 | ctreq->FsType = SLI_CT_ELX_LOOPBACK; | |
1737 | ctreq->FsSubType = 0; | |
1738 | ctreq->CommandResponse.bits.CmdRsp = ELX_LOOPBACK_XRI_SETUP; | |
1739 | ctreq->CommandResponse.bits.Size = 0; | |
1740 | ||
1741 | ||
1742 | cmd->un.xseq64.bdl.addrHigh = putPaddrHigh(dmabuf->phys); | |
1743 | cmd->un.xseq64.bdl.addrLow = putPaddrLow(dmabuf->phys); | |
1744 | cmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; | |
1745 | cmd->un.xseq64.bdl.bdeSize = sizeof(*bpl); | |
1746 | ||
1747 | cmd->un.xseq64.w5.hcsw.Fctl = LA; | |
1748 | cmd->un.xseq64.w5.hcsw.Dfctl = 0; | |
1749 | cmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL; | |
1750 | cmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT; | |
1751 | ||
1752 | cmd->ulpCommand = CMD_XMIT_SEQUENCE64_CR; | |
1753 | cmd->ulpBdeCount = 1; | |
1754 | cmd->ulpLe = 1; | |
1755 | cmd->ulpClass = CLASS3; | |
1756 | cmd->ulpContext = rpi; | |
1757 | ||
1758 | cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC; | |
1759 | cmdiocbq->vport = phba->pport; | |
1760 | ||
1761 | ret_val = lpfc_sli_issue_iocb_wait(phba, LPFC_ELS_RING, cmdiocbq, | |
1762 | rspiocbq, | |
1763 | (phba->fc_ratov * 2) | |
1764 | + LPFC_DRVR_TIMEOUT); | |
1765 | if (ret_val) | |
1766 | goto err_get_xri_exit; | |
1767 | ||
1768 | *txxri = rsp->ulpContext; | |
1769 | ||
1770 | evt->waiting = 1; | |
1771 | evt->wait_time_stamp = jiffies; | |
1772 | ret_val = wait_event_interruptible_timeout( | |
1773 | evt->wq, !list_empty(&evt->events_to_see), | |
1774 | ((phba->fc_ratov * 2) + LPFC_DRVR_TIMEOUT) * HZ); | |
1775 | if (list_empty(&evt->events_to_see)) | |
1776 | ret_val = (ret_val) ? EINTR : ETIMEDOUT; | |
1777 | else { | |
1778 | ret_val = IOCB_SUCCESS; | |
1779 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
1780 | list_move(evt->events_to_see.prev, &evt->events_to_get); | |
1781 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
1782 | *rxxri = (list_entry(evt->events_to_get.prev, | |
1783 | typeof(struct event_data), | |
1784 | node))->immed_dat; | |
1785 | } | |
1786 | evt->waiting = 0; | |
1787 | ||
1788 | err_get_xri_exit: | |
1789 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
1790 | lpfc_bsg_event_unref(evt); /* release ref */ | |
1791 | lpfc_bsg_event_unref(evt); /* delete */ | |
1792 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
1793 | ||
1794 | if (dmabuf) { | |
1795 | if (dmabuf->virt) | |
1796 | lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys); | |
1797 | kfree(dmabuf); | |
1798 | } | |
1799 | ||
1800 | if (cmdiocbq && (ret_val != IOCB_TIMEDOUT)) | |
1801 | lpfc_sli_release_iocbq(phba, cmdiocbq); | |
1802 | if (rspiocbq) | |
1803 | lpfc_sli_release_iocbq(phba, rspiocbq); | |
1804 | return ret_val; | |
1805 | } | |
1806 | ||
1807 | /** | |
1808 | * diag_cmd_data_alloc - fills in a bde struct with dma buffers | |
1809 | * @phba: Pointer to HBA context object | |
1810 | * @bpl: Pointer to 64 bit bde structure | |
1811 | * @size: Number of bytes to process | |
1812 | * @nocopydata: Flag to copy user data into the allocated buffer | |
1813 | * | |
1814 | * This function allocates page size buffers and populates an lpfc_dmabufext. | |
1815 | * If allowed the user data pointed to with indataptr is copied into the kernel | |
1816 | * memory. The chained list of page size buffers is returned. | |
1817 | **/ | |
1818 | static struct lpfc_dmabufext * | |
1819 | diag_cmd_data_alloc(struct lpfc_hba *phba, | |
1820 | struct ulp_bde64 *bpl, uint32_t size, | |
1821 | int nocopydata) | |
1822 | { | |
1823 | struct lpfc_dmabufext *mlist = NULL; | |
1824 | struct lpfc_dmabufext *dmp; | |
1825 | int cnt, offset = 0, i = 0; | |
1826 | struct pci_dev *pcidev; | |
1827 | ||
1828 | pcidev = phba->pcidev; | |
1829 | ||
1830 | while (size) { | |
1831 | /* We get chunks of 4K */ | |
1832 | if (size > BUF_SZ_4K) | |
1833 | cnt = BUF_SZ_4K; | |
1834 | else | |
1835 | cnt = size; | |
1836 | ||
1837 | /* allocate struct lpfc_dmabufext buffer header */ | |
1838 | dmp = kmalloc(sizeof(struct lpfc_dmabufext), GFP_KERNEL); | |
1839 | if (!dmp) | |
1840 | goto out; | |
1841 | ||
1842 | INIT_LIST_HEAD(&dmp->dma.list); | |
1843 | ||
1844 | /* Queue it to a linked list */ | |
1845 | if (mlist) | |
1846 | list_add_tail(&dmp->dma.list, &mlist->dma.list); | |
1847 | else | |
1848 | mlist = dmp; | |
1849 | ||
1850 | /* allocate buffer */ | |
1851 | dmp->dma.virt = dma_alloc_coherent(&pcidev->dev, | |
1852 | cnt, | |
1853 | &(dmp->dma.phys), | |
1854 | GFP_KERNEL); | |
1855 | ||
1856 | if (!dmp->dma.virt) | |
1857 | goto out; | |
1858 | ||
1859 | dmp->size = cnt; | |
1860 | ||
1861 | if (nocopydata) { | |
1862 | bpl->tus.f.bdeFlags = 0; | |
1863 | pci_dma_sync_single_for_device(phba->pcidev, | |
1864 | dmp->dma.phys, LPFC_BPL_SIZE, PCI_DMA_TODEVICE); | |
1865 | ||
1866 | } else { | |
1867 | memset((uint8_t *)dmp->dma.virt, 0, cnt); | |
1868 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; | |
1869 | } | |
1870 | ||
1871 | /* build buffer ptr list for IOCB */ | |
1872 | bpl->addrLow = le32_to_cpu(putPaddrLow(dmp->dma.phys)); | |
1873 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(dmp->dma.phys)); | |
1874 | bpl->tus.f.bdeSize = (ushort) cnt; | |
1875 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
1876 | bpl++; | |
1877 | ||
1878 | i++; | |
1879 | offset += cnt; | |
1880 | size -= cnt; | |
1881 | } | |
1882 | ||
1883 | mlist->flag = i; | |
1884 | return mlist; | |
1885 | out: | |
1886 | diag_cmd_data_free(phba, mlist); | |
1887 | return NULL; | |
1888 | } | |
1889 | ||
1890 | /** | |
1891 | * lpfcdiag_loop_post_rxbufs - post the receive buffers for an unsol CT cmd | |
1892 | * @phba: Pointer to HBA context object | |
1893 | * @rxxri: Receive exchange id | |
1894 | * @len: Number of data bytes | |
1895 | * | |
1896 | * This function allocates and posts a data buffer of sufficient size to recieve | |
1897 | * an unsolicted CT command. | |
1898 | **/ | |
1899 | static int lpfcdiag_loop_post_rxbufs(struct lpfc_hba *phba, uint16_t rxxri, | |
1900 | size_t len) | |
1901 | { | |
1902 | struct lpfc_sli *psli = &phba->sli; | |
1903 | struct lpfc_sli_ring *pring = &psli->ring[LPFC_ELS_RING]; | |
1904 | struct lpfc_iocbq *cmdiocbq; | |
1905 | IOCB_t *cmd = NULL; | |
1906 | struct list_head head, *curr, *next; | |
1907 | struct lpfc_dmabuf *rxbmp; | |
1908 | struct lpfc_dmabuf *dmp; | |
1909 | struct lpfc_dmabuf *mp[2] = {NULL, NULL}; | |
1910 | struct ulp_bde64 *rxbpl = NULL; | |
1911 | uint32_t num_bde; | |
1912 | struct lpfc_dmabufext *rxbuffer = NULL; | |
1913 | int ret_val = 0; | |
1914 | int i = 0; | |
1915 | ||
1916 | cmdiocbq = lpfc_sli_get_iocbq(phba); | |
1917 | rxbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
1918 | if (rxbmp != NULL) { | |
1919 | rxbmp->virt = lpfc_mbuf_alloc(phba, 0, &rxbmp->phys); | |
1920 | INIT_LIST_HEAD(&rxbmp->list); | |
1921 | rxbpl = (struct ulp_bde64 *) rxbmp->virt; | |
1922 | rxbuffer = diag_cmd_data_alloc(phba, rxbpl, len, 0); | |
1923 | } | |
1924 | ||
1925 | if (!cmdiocbq || !rxbmp || !rxbpl || !rxbuffer) { | |
1926 | ret_val = ENOMEM; | |
1927 | goto err_post_rxbufs_exit; | |
1928 | } | |
1929 | ||
1930 | /* Queue buffers for the receive exchange */ | |
1931 | num_bde = (uint32_t)rxbuffer->flag; | |
1932 | dmp = &rxbuffer->dma; | |
1933 | ||
1934 | cmd = &cmdiocbq->iocb; | |
1935 | i = 0; | |
1936 | ||
1937 | INIT_LIST_HEAD(&head); | |
1938 | list_add_tail(&head, &dmp->list); | |
1939 | list_for_each_safe(curr, next, &head) { | |
1940 | mp[i] = list_entry(curr, struct lpfc_dmabuf, list); | |
1941 | list_del(curr); | |
1942 | ||
1943 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { | |
1944 | mp[i]->buffer_tag = lpfc_sli_get_buffer_tag(phba); | |
1945 | cmd->un.quexri64cx.buff.bde.addrHigh = | |
1946 | putPaddrHigh(mp[i]->phys); | |
1947 | cmd->un.quexri64cx.buff.bde.addrLow = | |
1948 | putPaddrLow(mp[i]->phys); | |
1949 | cmd->un.quexri64cx.buff.bde.tus.f.bdeSize = | |
1950 | ((struct lpfc_dmabufext *)mp[i])->size; | |
1951 | cmd->un.quexri64cx.buff.buffer_tag = mp[i]->buffer_tag; | |
1952 | cmd->ulpCommand = CMD_QUE_XRI64_CX; | |
1953 | cmd->ulpPU = 0; | |
1954 | cmd->ulpLe = 1; | |
1955 | cmd->ulpBdeCount = 1; | |
1956 | cmd->unsli3.que_xri64cx_ext_words.ebde_count = 0; | |
1957 | ||
1958 | } else { | |
1959 | cmd->un.cont64[i].addrHigh = putPaddrHigh(mp[i]->phys); | |
1960 | cmd->un.cont64[i].addrLow = putPaddrLow(mp[i]->phys); | |
1961 | cmd->un.cont64[i].tus.f.bdeSize = | |
1962 | ((struct lpfc_dmabufext *)mp[i])->size; | |
1963 | cmd->ulpBdeCount = ++i; | |
1964 | ||
1965 | if ((--num_bde > 0) && (i < 2)) | |
1966 | continue; | |
1967 | ||
1968 | cmd->ulpCommand = CMD_QUE_XRI_BUF64_CX; | |
1969 | cmd->ulpLe = 1; | |
1970 | } | |
1971 | ||
1972 | cmd->ulpClass = CLASS3; | |
1973 | cmd->ulpContext = rxxri; | |
1974 | ||
1975 | ret_val = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, 0); | |
1976 | ||
1977 | if (ret_val == IOCB_ERROR) { | |
1978 | diag_cmd_data_free(phba, | |
1979 | (struct lpfc_dmabufext *)mp[0]); | |
1980 | if (mp[1]) | |
1981 | diag_cmd_data_free(phba, | |
1982 | (struct lpfc_dmabufext *)mp[1]); | |
1983 | dmp = list_entry(next, struct lpfc_dmabuf, list); | |
1984 | ret_val = EIO; | |
1985 | goto err_post_rxbufs_exit; | |
1986 | } | |
1987 | ||
1988 | lpfc_sli_ringpostbuf_put(phba, pring, mp[0]); | |
1989 | if (mp[1]) { | |
1990 | lpfc_sli_ringpostbuf_put(phba, pring, mp[1]); | |
1991 | mp[1] = NULL; | |
1992 | } | |
1993 | ||
1994 | /* The iocb was freed by lpfc_sli_issue_iocb */ | |
1995 | cmdiocbq = lpfc_sli_get_iocbq(phba); | |
1996 | if (!cmdiocbq) { | |
1997 | dmp = list_entry(next, struct lpfc_dmabuf, list); | |
1998 | ret_val = EIO; | |
1999 | goto err_post_rxbufs_exit; | |
2000 | } | |
2001 | ||
2002 | cmd = &cmdiocbq->iocb; | |
2003 | i = 0; | |
2004 | } | |
2005 | list_del(&head); | |
2006 | ||
2007 | err_post_rxbufs_exit: | |
2008 | ||
2009 | if (rxbmp) { | |
2010 | if (rxbmp->virt) | |
2011 | lpfc_mbuf_free(phba, rxbmp->virt, rxbmp->phys); | |
2012 | kfree(rxbmp); | |
2013 | } | |
2014 | ||
2015 | if (cmdiocbq) | |
2016 | lpfc_sli_release_iocbq(phba, cmdiocbq); | |
2017 | return ret_val; | |
2018 | } | |
2019 | ||
2020 | /** | |
2021 | * lpfc_bsg_diag_test - with a port in loopback issues a Ct cmd to itself | |
2022 | * @job: LPFC_BSG_VENDOR_DIAG_TEST fc_bsg_job | |
2023 | * | |
2024 | * This function receives a user data buffer to be transmitted and received on | |
2025 | * the same port, the link must be up and in loopback mode prior | |
2026 | * to being called. | |
2027 | * 1. A kernel buffer is allocated to copy the user data into. | |
2028 | * 2. The port registers with "itself". | |
2029 | * 3. The transmit and receive exchange ids are obtained. | |
2030 | * 4. The receive exchange id is posted. | |
2031 | * 5. A new els loopback event is created. | |
2032 | * 6. The command and response iocbs are allocated. | |
2033 | * 7. The cmd iocb FsType is set to elx loopback and the CmdRsp to looppback. | |
2034 | * | |
2035 | * This function is meant to be called n times while the port is in loopback | |
2036 | * so it is the apps responsibility to issue a reset to take the port out | |
2037 | * of loopback mode. | |
2038 | **/ | |
2039 | static int | |
2040 | lpfc_bsg_diag_test(struct fc_bsg_job *job) | |
2041 | { | |
2042 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
2043 | struct lpfc_hba *phba = vport->phba; | |
2044 | struct diag_mode_test *diag_mode; | |
2045 | struct lpfc_bsg_event *evt; | |
2046 | struct event_data *evdat; | |
2047 | struct lpfc_sli *psli = &phba->sli; | |
2048 | uint32_t size; | |
2049 | uint32_t full_size; | |
2050 | size_t segment_len = 0, segment_offset = 0, current_offset = 0; | |
2051 | uint16_t rpi; | |
2052 | struct lpfc_iocbq *cmdiocbq, *rspiocbq; | |
2053 | IOCB_t *cmd, *rsp; | |
2054 | struct lpfc_sli_ct_request *ctreq; | |
2055 | struct lpfc_dmabuf *txbmp; | |
2056 | struct ulp_bde64 *txbpl = NULL; | |
2057 | struct lpfc_dmabufext *txbuffer = NULL; | |
2058 | struct list_head head; | |
2059 | struct lpfc_dmabuf *curr; | |
2060 | uint16_t txxri, rxxri; | |
2061 | uint32_t num_bde; | |
2062 | uint8_t *ptr = NULL, *rx_databuf = NULL; | |
2063 | int rc = 0; | |
2064 | unsigned long flags; | |
2065 | void *dataout = NULL; | |
2066 | uint32_t total_mem; | |
2067 | ||
2068 | /* in case no data is returned return just the return code */ | |
2069 | job->reply->reply_payload_rcv_len = 0; | |
2070 | ||
2071 | if (job->request_len < | |
2072 | sizeof(struct fc_bsg_request) + sizeof(struct diag_mode_test)) { | |
2073 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
2074 | "2739 Received DIAG TEST request below minimum " | |
2075 | "size\n"); | |
2076 | rc = -EINVAL; | |
2077 | goto loopback_test_exit; | |
2078 | } | |
2079 | ||
2080 | if (job->request_payload.payload_len != | |
2081 | job->reply_payload.payload_len) { | |
2082 | rc = -EINVAL; | |
2083 | goto loopback_test_exit; | |
2084 | } | |
2085 | ||
2086 | diag_mode = (struct diag_mode_test *) | |
2087 | job->request->rqst_data.h_vendor.vendor_cmd; | |
2088 | ||
2089 | if ((phba->link_state == LPFC_HBA_ERROR) || | |
2090 | (psli->sli_flag & LPFC_BLOCK_MGMT_IO) || | |
2091 | (!(psli->sli_flag & LPFC_SLI_ACTIVE))) { | |
2092 | rc = -EACCES; | |
2093 | goto loopback_test_exit; | |
2094 | } | |
2095 | ||
2096 | if (!lpfc_is_link_up(phba) || !(phba->link_flag & LS_LOOPBACK_MODE)) { | |
2097 | rc = -EACCES; | |
2098 | goto loopback_test_exit; | |
2099 | } | |
2100 | ||
2101 | size = job->request_payload.payload_len; | |
2102 | full_size = size + ELX_LOOPBACK_HEADER_SZ; /* plus the header */ | |
2103 | ||
2104 | if ((size == 0) || (size > 80 * BUF_SZ_4K)) { | |
2105 | rc = -ERANGE; | |
2106 | goto loopback_test_exit; | |
2107 | } | |
2108 | ||
2109 | if (size >= BUF_SZ_4K) { | |
2110 | /* | |
2111 | * Allocate memory for ioctl data. If buffer is bigger than 64k, | |
2112 | * then we allocate 64k and re-use that buffer over and over to | |
2113 | * xfer the whole block. This is because Linux kernel has a | |
2114 | * problem allocating more than 120k of kernel space memory. Saw | |
2115 | * problem with GET_FCPTARGETMAPPING... | |
2116 | */ | |
2117 | if (size <= (64 * 1024)) | |
2118 | total_mem = size; | |
2119 | else | |
2120 | total_mem = 64 * 1024; | |
2121 | } else | |
2122 | /* Allocate memory for ioctl data */ | |
2123 | total_mem = BUF_SZ_4K; | |
2124 | ||
2125 | dataout = kmalloc(total_mem, GFP_KERNEL); | |
2126 | if (dataout == NULL) { | |
2127 | rc = -ENOMEM; | |
2128 | goto loopback_test_exit; | |
2129 | } | |
2130 | ||
2131 | ptr = dataout; | |
2132 | ptr += ELX_LOOPBACK_HEADER_SZ; | |
2133 | sg_copy_to_buffer(job->request_payload.sg_list, | |
2134 | job->request_payload.sg_cnt, | |
2135 | ptr, size); | |
2136 | ||
2137 | rc = lpfcdiag_loop_self_reg(phba, &rpi); | |
2138 | if (rc) { | |
2139 | rc = -ENOMEM; | |
2140 | goto loopback_test_exit; | |
2141 | } | |
2142 | ||
2143 | rc = lpfcdiag_loop_get_xri(phba, rpi, &txxri, &rxxri); | |
2144 | if (rc) { | |
2145 | lpfcdiag_loop_self_unreg(phba, rpi); | |
2146 | rc = -ENOMEM; | |
2147 | goto loopback_test_exit; | |
2148 | } | |
2149 | ||
2150 | rc = lpfcdiag_loop_post_rxbufs(phba, rxxri, full_size); | |
2151 | if (rc) { | |
2152 | lpfcdiag_loop_self_unreg(phba, rpi); | |
2153 | rc = -ENOMEM; | |
2154 | goto loopback_test_exit; | |
2155 | } | |
2156 | ||
2157 | evt = lpfc_bsg_event_new(FC_REG_CT_EVENT, current->pid, | |
2158 | SLI_CT_ELX_LOOPBACK); | |
2159 | if (!evt) { | |
2160 | lpfcdiag_loop_self_unreg(phba, rpi); | |
2161 | rc = -ENOMEM; | |
2162 | goto loopback_test_exit; | |
2163 | } | |
2164 | ||
2165 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
2166 | list_add(&evt->node, &phba->ct_ev_waiters); | |
2167 | lpfc_bsg_event_ref(evt); | |
2168 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
2169 | ||
2170 | cmdiocbq = lpfc_sli_get_iocbq(phba); | |
2171 | rspiocbq = lpfc_sli_get_iocbq(phba); | |
2172 | txbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
2173 | ||
2174 | if (txbmp) { | |
2175 | txbmp->virt = lpfc_mbuf_alloc(phba, 0, &txbmp->phys); | |
2176 | INIT_LIST_HEAD(&txbmp->list); | |
2177 | txbpl = (struct ulp_bde64 *) txbmp->virt; | |
2178 | if (txbpl) | |
2179 | txbuffer = diag_cmd_data_alloc(phba, | |
2180 | txbpl, full_size, 0); | |
2181 | } | |
2182 | ||
2183 | if (!cmdiocbq || !rspiocbq || !txbmp || !txbpl || !txbuffer) { | |
2184 | rc = -ENOMEM; | |
2185 | goto err_loopback_test_exit; | |
2186 | } | |
2187 | ||
2188 | cmd = &cmdiocbq->iocb; | |
2189 | rsp = &rspiocbq->iocb; | |
2190 | ||
2191 | INIT_LIST_HEAD(&head); | |
2192 | list_add_tail(&head, &txbuffer->dma.list); | |
2193 | list_for_each_entry(curr, &head, list) { | |
2194 | segment_len = ((struct lpfc_dmabufext *)curr)->size; | |
2195 | if (current_offset == 0) { | |
2196 | ctreq = curr->virt; | |
2197 | memset(ctreq, 0, ELX_LOOPBACK_HEADER_SZ); | |
2198 | ctreq->RevisionId.bits.Revision = SLI_CT_REVISION; | |
2199 | ctreq->RevisionId.bits.InId = 0; | |
2200 | ctreq->FsType = SLI_CT_ELX_LOOPBACK; | |
2201 | ctreq->FsSubType = 0; | |
2202 | ctreq->CommandResponse.bits.CmdRsp = ELX_LOOPBACK_DATA; | |
2203 | ctreq->CommandResponse.bits.Size = size; | |
2204 | segment_offset = ELX_LOOPBACK_HEADER_SZ; | |
2205 | } else | |
2206 | segment_offset = 0; | |
2207 | ||
2208 | BUG_ON(segment_offset >= segment_len); | |
2209 | memcpy(curr->virt + segment_offset, | |
2210 | ptr + current_offset, | |
2211 | segment_len - segment_offset); | |
2212 | ||
2213 | current_offset += segment_len - segment_offset; | |
2214 | BUG_ON(current_offset > size); | |
2215 | } | |
2216 | list_del(&head); | |
2217 | ||
2218 | /* Build the XMIT_SEQUENCE iocb */ | |
2219 | ||
2220 | num_bde = (uint32_t)txbuffer->flag; | |
2221 | ||
2222 | cmd->un.xseq64.bdl.addrHigh = putPaddrHigh(txbmp->phys); | |
2223 | cmd->un.xseq64.bdl.addrLow = putPaddrLow(txbmp->phys); | |
2224 | cmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; | |
2225 | cmd->un.xseq64.bdl.bdeSize = (num_bde * sizeof(struct ulp_bde64)); | |
2226 | ||
2227 | cmd->un.xseq64.w5.hcsw.Fctl = (LS | LA); | |
2228 | cmd->un.xseq64.w5.hcsw.Dfctl = 0; | |
2229 | cmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL; | |
2230 | cmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT; | |
2231 | ||
2232 | cmd->ulpCommand = CMD_XMIT_SEQUENCE64_CX; | |
2233 | cmd->ulpBdeCount = 1; | |
2234 | cmd->ulpLe = 1; | |
2235 | cmd->ulpClass = CLASS3; | |
2236 | cmd->ulpContext = txxri; | |
2237 | ||
2238 | cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC; | |
2239 | cmdiocbq->vport = phba->pport; | |
2240 | ||
2241 | rc = lpfc_sli_issue_iocb_wait(phba, LPFC_ELS_RING, cmdiocbq, rspiocbq, | |
2242 | (phba->fc_ratov * 2) + LPFC_DRVR_TIMEOUT); | |
2243 | ||
2244 | if ((rc != IOCB_SUCCESS) || (rsp->ulpStatus != IOCB_SUCCESS)) { | |
2245 | rc = -EIO; | |
2246 | goto err_loopback_test_exit; | |
2247 | } | |
2248 | ||
2249 | evt->waiting = 1; | |
2250 | rc = wait_event_interruptible_timeout( | |
2251 | evt->wq, !list_empty(&evt->events_to_see), | |
2252 | ((phba->fc_ratov * 2) + LPFC_DRVR_TIMEOUT) * HZ); | |
2253 | evt->waiting = 0; | |
2254 | if (list_empty(&evt->events_to_see)) | |
2255 | rc = (rc) ? -EINTR : -ETIMEDOUT; | |
2256 | else { | |
2257 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
2258 | list_move(evt->events_to_see.prev, &evt->events_to_get); | |
2259 | evdat = list_entry(evt->events_to_get.prev, | |
2260 | typeof(*evdat), node); | |
2261 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
2262 | rx_databuf = evdat->data; | |
2263 | if (evdat->len != full_size) { | |
2264 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, | |
2265 | "1603 Loopback test did not receive expected " | |
2266 | "data length. actual length 0x%x expected " | |
2267 | "length 0x%x\n", | |
2268 | evdat->len, full_size); | |
2269 | rc = -EIO; | |
2270 | } else if (rx_databuf == NULL) | |
2271 | rc = -EIO; | |
2272 | else { | |
2273 | rc = IOCB_SUCCESS; | |
2274 | /* skip over elx loopback header */ | |
2275 | rx_databuf += ELX_LOOPBACK_HEADER_SZ; | |
2276 | job->reply->reply_payload_rcv_len = | |
2277 | sg_copy_from_buffer(job->reply_payload.sg_list, | |
2278 | job->reply_payload.sg_cnt, | |
2279 | rx_databuf, size); | |
2280 | job->reply->reply_payload_rcv_len = size; | |
2281 | } | |
2282 | } | |
2283 | ||
2284 | err_loopback_test_exit: | |
2285 | lpfcdiag_loop_self_unreg(phba, rpi); | |
2286 | ||
2287 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
2288 | lpfc_bsg_event_unref(evt); /* release ref */ | |
2289 | lpfc_bsg_event_unref(evt); /* delete */ | |
2290 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
2291 | ||
2292 | if (cmdiocbq != NULL) | |
2293 | lpfc_sli_release_iocbq(phba, cmdiocbq); | |
2294 | ||
2295 | if (rspiocbq != NULL) | |
2296 | lpfc_sli_release_iocbq(phba, rspiocbq); | |
2297 | ||
2298 | if (txbmp != NULL) { | |
2299 | if (txbpl != NULL) { | |
2300 | if (txbuffer != NULL) | |
2301 | diag_cmd_data_free(phba, txbuffer); | |
2302 | lpfc_mbuf_free(phba, txbmp->virt, txbmp->phys); | |
2303 | } | |
2304 | kfree(txbmp); | |
2305 | } | |
2306 | ||
2307 | loopback_test_exit: | |
2308 | kfree(dataout); | |
2309 | /* make error code available to userspace */ | |
2310 | job->reply->result = rc; | |
2311 | job->dd_data = NULL; | |
2312 | /* complete the job back to userspace if no error */ | |
2313 | if (rc == 0) | |
2314 | job->job_done(job); | |
2315 | return rc; | |
2316 | } | |
2317 | ||
2318 | /** | |
2319 | * lpfc_bsg_get_dfc_rev - process a GET_DFC_REV bsg vendor command | |
2320 | * @job: GET_DFC_REV fc_bsg_job | |
2321 | **/ | |
2322 | static int | |
2323 | lpfc_bsg_get_dfc_rev(struct fc_bsg_job *job) | |
2324 | { | |
2325 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
2326 | struct lpfc_hba *phba = vport->phba; | |
2327 | struct get_mgmt_rev *event_req; | |
2328 | struct get_mgmt_rev_reply *event_reply; | |
2329 | int rc = 0; | |
2330 | ||
2331 | if (job->request_len < | |
2332 | sizeof(struct fc_bsg_request) + sizeof(struct get_mgmt_rev)) { | |
2333 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
2334 | "2740 Received GET_DFC_REV request below " | |
2335 | "minimum size\n"); | |
2336 | rc = -EINVAL; | |
2337 | goto job_error; | |
2338 | } | |
2339 | ||
2340 | event_req = (struct get_mgmt_rev *) | |
2341 | job->request->rqst_data.h_vendor.vendor_cmd; | |
2342 | ||
2343 | event_reply = (struct get_mgmt_rev_reply *) | |
2344 | job->reply->reply_data.vendor_reply.vendor_rsp; | |
2345 | ||
2346 | if (job->reply_len < | |
2347 | sizeof(struct fc_bsg_request) + sizeof(struct get_mgmt_rev_reply)) { | |
2348 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
2349 | "2741 Received GET_DFC_REV reply below " | |
2350 | "minimum size\n"); | |
2351 | rc = -EINVAL; | |
2352 | goto job_error; | |
2353 | } | |
2354 | ||
2355 | event_reply->info.a_Major = MANAGEMENT_MAJOR_REV; | |
2356 | event_reply->info.a_Minor = MANAGEMENT_MINOR_REV; | |
2357 | job_error: | |
2358 | job->reply->result = rc; | |
2359 | if (rc == 0) | |
2360 | job->job_done(job); | |
2361 | return rc; | |
2362 | } | |
2363 | ||
2364 | /** | |
2365 | * lpfc_bsg_wake_mbox_wait - lpfc_bsg_issue_mbox mbox completion handler | |
2366 | * @phba: Pointer to HBA context object. | |
2367 | * @pmboxq: Pointer to mailbox command. | |
2368 | * | |
2369 | * This is completion handler function for mailbox commands issued from | |
2370 | * lpfc_bsg_issue_mbox function. This function is called by the | |
2371 | * mailbox event handler function with no lock held. This function | |
2372 | * will wake up thread waiting on the wait queue pointed by context1 | |
2373 | * of the mailbox. | |
2374 | **/ | |
2375 | void | |
2376 | lpfc_bsg_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) | |
2377 | { | |
2378 | struct bsg_job_data *dd_data; | |
2379 | MAILBOX_t *pmb; | |
2380 | MAILBOX_t *mb; | |
2381 | struct fc_bsg_job *job; | |
2382 | uint32_t size; | |
2383 | unsigned long flags; | |
2384 | ||
2385 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
2386 | dd_data = pmboxq->context1; | |
2387 | if (!dd_data) { | |
2388 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
2389 | return; | |
2390 | } | |
2391 | ||
2392 | pmb = &dd_data->context_un.mbox.pmboxq->u.mb; | |
2393 | mb = dd_data->context_un.mbox.mb; | |
2394 | job = dd_data->context_un.mbox.set_job; | |
2395 | memcpy(mb, pmb, sizeof(*pmb)); | |
2396 | size = job->request_payload.payload_len; | |
2397 | job->reply->reply_payload_rcv_len = | |
2398 | sg_copy_from_buffer(job->reply_payload.sg_list, | |
2399 | job->reply_payload.sg_cnt, | |
2400 | mb, size); | |
2401 | job->reply->result = 0; | |
2402 | dd_data->context_un.mbox.set_job = NULL; | |
2403 | job->dd_data = NULL; | |
2404 | job->job_done(job); | |
2405 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
2406 | mempool_free(dd_data->context_un.mbox.pmboxq, phba->mbox_mem_pool); | |
2407 | kfree(mb); | |
2408 | kfree(dd_data); | |
2409 | return; | |
2410 | } | |
2411 | ||
2412 | /** | |
2413 | * lpfc_bsg_check_cmd_access - test for a supported mailbox command | |
2414 | * @phba: Pointer to HBA context object. | |
2415 | * @mb: Pointer to a mailbox object. | |
2416 | * @vport: Pointer to a vport object. | |
2417 | * | |
2418 | * Some commands require the port to be offline, some may not be called from | |
2419 | * the application. | |
2420 | **/ | |
2421 | static int lpfc_bsg_check_cmd_access(struct lpfc_hba *phba, | |
2422 | MAILBOX_t *mb, struct lpfc_vport *vport) | |
2423 | { | |
2424 | /* return negative error values for bsg job */ | |
2425 | switch (mb->mbxCommand) { | |
2426 | /* Offline only */ | |
2427 | case MBX_INIT_LINK: | |
2428 | case MBX_DOWN_LINK: | |
2429 | case MBX_CONFIG_LINK: | |
2430 | case MBX_CONFIG_RING: | |
2431 | case MBX_RESET_RING: | |
2432 | case MBX_UNREG_LOGIN: | |
2433 | case MBX_CLEAR_LA: | |
2434 | case MBX_DUMP_CONTEXT: | |
2435 | case MBX_RUN_DIAGS: | |
2436 | case MBX_RESTART: | |
2437 | case MBX_SET_MASK: | |
2438 | if (!(vport->fc_flag & FC_OFFLINE_MODE)) { | |
2439 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
2440 | "2743 Command 0x%x is illegal in on-line " | |
2441 | "state\n", | |
2442 | mb->mbxCommand); | |
2443 | return -EPERM; | |
2444 | } | |
2445 | case MBX_WRITE_NV: | |
2446 | case MBX_WRITE_VPARMS: | |
2447 | case MBX_LOAD_SM: | |
2448 | case MBX_READ_NV: | |
2449 | case MBX_READ_CONFIG: | |
2450 | case MBX_READ_RCONFIG: | |
2451 | case MBX_READ_STATUS: | |
2452 | case MBX_READ_XRI: | |
2453 | case MBX_READ_REV: | |
2454 | case MBX_READ_LNK_STAT: | |
2455 | case MBX_DUMP_MEMORY: | |
2456 | case MBX_DOWN_LOAD: | |
2457 | case MBX_UPDATE_CFG: | |
2458 | case MBX_KILL_BOARD: | |
2459 | case MBX_LOAD_AREA: | |
2460 | case MBX_LOAD_EXP_ROM: | |
2461 | case MBX_BEACON: | |
2462 | case MBX_DEL_LD_ENTRY: | |
2463 | case MBX_SET_DEBUG: | |
2464 | case MBX_WRITE_WWN: | |
2465 | case MBX_SLI4_CONFIG: | |
2466 | case MBX_READ_EVENT_LOG_STATUS: | |
2467 | case MBX_WRITE_EVENT_LOG: | |
2468 | case MBX_PORT_CAPABILITIES: | |
2469 | case MBX_PORT_IOV_CONTROL: | |
2470 | break; | |
2471 | case MBX_SET_VARIABLE: | |
e2aed29f JS |
2472 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
2473 | "1226 mbox: set_variable 0x%x, 0x%x\n", | |
2474 | mb->un.varWords[0], | |
2475 | mb->un.varWords[1]); | |
2476 | if ((mb->un.varWords[0] == SETVAR_MLOMNT) | |
2477 | && (mb->un.varWords[1] == 1)) { | |
2478 | phba->wait_4_mlo_maint_flg = 1; | |
2479 | } else if (mb->un.varWords[0] == SETVAR_MLORST) { | |
2480 | phba->link_flag &= ~LS_LOOPBACK_MODE; | |
2481 | phba->fc_topology = TOPOLOGY_PT_PT; | |
2482 | } | |
2483 | break; | |
3b5dd52a JS |
2484 | case MBX_RUN_BIU_DIAG64: |
2485 | case MBX_READ_EVENT_LOG: | |
2486 | case MBX_READ_SPARM64: | |
2487 | case MBX_READ_LA: | |
2488 | case MBX_READ_LA64: | |
2489 | case MBX_REG_LOGIN: | |
2490 | case MBX_REG_LOGIN64: | |
2491 | case MBX_CONFIG_PORT: | |
2492 | case MBX_RUN_BIU_DIAG: | |
2493 | default: | |
2494 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
2495 | "2742 Unknown Command 0x%x\n", | |
2496 | mb->mbxCommand); | |
2497 | return -EPERM; | |
2498 | } | |
2499 | ||
2500 | return 0; /* ok */ | |
2501 | } | |
2502 | ||
2503 | /** | |
2504 | * lpfc_bsg_issue_mbox - issues a mailbox command on behalf of an app | |
2505 | * @phba: Pointer to HBA context object. | |
2506 | * @mb: Pointer to a mailbox object. | |
2507 | * @vport: Pointer to a vport object. | |
2508 | * | |
2509 | * Allocate a tracking object, mailbox command memory, get a mailbox | |
2510 | * from the mailbox pool, copy the caller mailbox command. | |
2511 | * | |
2512 | * If offline and the sli is active we need to poll for the command (port is | |
2513 | * being reset) and com-plete the job, otherwise issue the mailbox command and | |
2514 | * let our completion handler finish the command. | |
2515 | **/ | |
2516 | static uint32_t | |
2517 | lpfc_bsg_issue_mbox(struct lpfc_hba *phba, struct fc_bsg_job *job, | |
2518 | struct lpfc_vport *vport) | |
2519 | { | |
2520 | LPFC_MBOXQ_t *pmboxq; | |
2521 | MAILBOX_t *pmb; | |
2522 | MAILBOX_t *mb; | |
2523 | struct bsg_job_data *dd_data; | |
2524 | uint32_t size; | |
2525 | int rc = 0; | |
2526 | ||
2527 | /* allocate our bsg tracking structure */ | |
2528 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); | |
2529 | if (!dd_data) { | |
2530 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
2531 | "2727 Failed allocation of dd_data\n"); | |
2532 | return -ENOMEM; | |
2533 | } | |
2534 | ||
2535 | mb = kzalloc(PAGE_SIZE, GFP_KERNEL); | |
2536 | if (!mb) { | |
2537 | kfree(dd_data); | |
2538 | return -ENOMEM; | |
2539 | } | |
2540 | ||
2541 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
2542 | if (!pmboxq) { | |
2543 | kfree(dd_data); | |
2544 | kfree(mb); | |
2545 | return -ENOMEM; | |
2546 | } | |
2547 | ||
2548 | size = job->request_payload.payload_len; | |
2549 | job->reply->reply_payload_rcv_len = | |
2550 | sg_copy_to_buffer(job->request_payload.sg_list, | |
2551 | job->request_payload.sg_cnt, | |
2552 | mb, size); | |
2553 | ||
2554 | rc = lpfc_bsg_check_cmd_access(phba, mb, vport); | |
2555 | if (rc != 0) { | |
2556 | kfree(dd_data); | |
2557 | kfree(mb); | |
2558 | mempool_free(pmboxq, phba->mbox_mem_pool); | |
2559 | return rc; /* must be negative */ | |
2560 | } | |
2561 | ||
2562 | memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); | |
2563 | pmb = &pmboxq->u.mb; | |
2564 | memcpy(pmb, mb, sizeof(*pmb)); | |
2565 | pmb->mbxOwner = OWN_HOST; | |
2566 | pmboxq->context1 = NULL; | |
2567 | pmboxq->vport = vport; | |
2568 | ||
2569 | if ((vport->fc_flag & FC_OFFLINE_MODE) || | |
2570 | (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE))) { | |
2571 | rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); | |
2572 | if (rc != MBX_SUCCESS) { | |
2573 | if (rc != MBX_TIMEOUT) { | |
2574 | kfree(dd_data); | |
2575 | kfree(mb); | |
2576 | mempool_free(pmboxq, phba->mbox_mem_pool); | |
2577 | } | |
2578 | return (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV; | |
2579 | } | |
2580 | ||
2581 | memcpy(mb, pmb, sizeof(*pmb)); | |
2582 | job->reply->reply_payload_rcv_len = | |
2583 | sg_copy_from_buffer(job->reply_payload.sg_list, | |
2584 | job->reply_payload.sg_cnt, | |
2585 | mb, size); | |
2586 | kfree(dd_data); | |
2587 | kfree(mb); | |
2588 | mempool_free(pmboxq, phba->mbox_mem_pool); | |
2589 | /* not waiting mbox already done */ | |
2590 | return 0; | |
2591 | } | |
2592 | ||
2593 | /* setup wake call as IOCB callback */ | |
2594 | pmboxq->mbox_cmpl = lpfc_bsg_wake_mbox_wait; | |
2595 | /* setup context field to pass wait_queue pointer to wake function */ | |
2596 | pmboxq->context1 = dd_data; | |
2597 | dd_data->type = TYPE_MBOX; | |
2598 | dd_data->context_un.mbox.pmboxq = pmboxq; | |
2599 | dd_data->context_un.mbox.mb = mb; | |
2600 | dd_data->context_un.mbox.set_job = job; | |
2601 | job->dd_data = dd_data; | |
2602 | rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); | |
2603 | if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { | |
2604 | kfree(dd_data); | |
2605 | kfree(mb); | |
2606 | mempool_free(pmboxq, phba->mbox_mem_pool); | |
2607 | return -EIO; | |
2608 | } | |
2609 | ||
2610 | return 1; | |
2611 | } | |
2612 | ||
2613 | /** | |
2614 | * lpfc_bsg_mbox_cmd - process an fc bsg LPFC_BSG_VENDOR_MBOX command | |
2615 | * @job: MBOX fc_bsg_job for LPFC_BSG_VENDOR_MBOX. | |
2616 | **/ | |
2617 | static int | |
2618 | lpfc_bsg_mbox_cmd(struct fc_bsg_job *job) | |
2619 | { | |
2620 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
2621 | struct lpfc_hba *phba = vport->phba; | |
2622 | int rc = 0; | |
2623 | ||
2624 | /* in case no data is transferred */ | |
2625 | job->reply->reply_payload_rcv_len = 0; | |
2626 | if (job->request_len < | |
2627 | sizeof(struct fc_bsg_request) + sizeof(struct dfc_mbox_req)) { | |
2628 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
2629 | "2737 Received MBOX_REQ request below " | |
2630 | "minimum size\n"); | |
2631 | rc = -EINVAL; | |
2632 | goto job_error; | |
2633 | } | |
2634 | ||
2635 | if (job->request_payload.payload_len != PAGE_SIZE) { | |
2636 | rc = -EINVAL; | |
2637 | goto job_error; | |
2638 | } | |
2639 | ||
2640 | if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) { | |
2641 | rc = -EAGAIN; | |
2642 | goto job_error; | |
2643 | } | |
2644 | ||
2645 | rc = lpfc_bsg_issue_mbox(phba, job, vport); | |
2646 | ||
2647 | job_error: | |
2648 | if (rc == 0) { | |
2649 | /* job done */ | |
2650 | job->reply->result = 0; | |
2651 | job->dd_data = NULL; | |
2652 | job->job_done(job); | |
2653 | } else if (rc == 1) | |
2654 | /* job submitted, will complete later*/ | |
2655 | rc = 0; /* return zero, no error */ | |
2656 | else { | |
2657 | /* some error occurred */ | |
2658 | job->reply->result = rc; | |
2659 | job->dd_data = NULL; | |
2660 | } | |
2661 | ||
2662 | return rc; | |
2663 | } | |
2664 | ||
e2aed29f JS |
2665 | /** |
2666 | * lpfc_bsg_menlo_cmd_cmp - lpfc_menlo_cmd completion handler | |
2667 | * @phba: Pointer to HBA context object. | |
2668 | * @cmdiocbq: Pointer to command iocb. | |
2669 | * @rspiocbq: Pointer to response iocb. | |
2670 | * | |
2671 | * This function is the completion handler for iocbs issued using | |
2672 | * lpfc_menlo_cmd function. This function is called by the | |
2673 | * ring event handler function without any lock held. This function | |
2674 | * can be called from both worker thread context and interrupt | |
2675 | * context. This function also can be called from another thread which | |
2676 | * cleans up the SLI layer objects. | |
2677 | * This function copies the contents of the response iocb to the | |
2678 | * response iocb memory object provided by the caller of | |
2679 | * lpfc_sli_issue_iocb_wait and then wakes up the thread which | |
2680 | * sleeps for the iocb completion. | |
2681 | **/ | |
2682 | static void | |
2683 | lpfc_bsg_menlo_cmd_cmp(struct lpfc_hba *phba, | |
2684 | struct lpfc_iocbq *cmdiocbq, | |
2685 | struct lpfc_iocbq *rspiocbq) | |
2686 | { | |
2687 | struct bsg_job_data *dd_data; | |
2688 | struct fc_bsg_job *job; | |
2689 | IOCB_t *rsp; | |
2690 | struct lpfc_dmabuf *bmp; | |
2691 | struct lpfc_bsg_menlo *menlo; | |
2692 | unsigned long flags; | |
2693 | struct menlo_response *menlo_resp; | |
2694 | int rc = 0; | |
2695 | ||
2696 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
2697 | dd_data = cmdiocbq->context1; | |
2698 | if (!dd_data) { | |
2699 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
2700 | return; | |
2701 | } | |
2702 | ||
2703 | menlo = &dd_data->context_un.menlo; | |
2704 | job = menlo->set_job; | |
2705 | job->dd_data = NULL; /* so timeout handler does not reply */ | |
2706 | ||
2707 | spin_lock_irqsave(&phba->hbalock, flags); | |
2708 | cmdiocbq->iocb_flag |= LPFC_IO_WAKE; | |
2709 | if (cmdiocbq->context2 && rspiocbq) | |
2710 | memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb, | |
2711 | &rspiocbq->iocb, sizeof(IOCB_t)); | |
2712 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
2713 | ||
2714 | bmp = menlo->bmp; | |
2715 | rspiocbq = menlo->rspiocbq; | |
2716 | rsp = &rspiocbq->iocb; | |
2717 | ||
2718 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, | |
2719 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
2720 | pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list, | |
2721 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); | |
2722 | ||
2723 | /* always return the xri, this would be used in the case | |
2724 | * of a menlo download to allow the data to be sent as a continuation | |
2725 | * of the exchange. | |
2726 | */ | |
2727 | menlo_resp = (struct menlo_response *) | |
2728 | job->reply->reply_data.vendor_reply.vendor_rsp; | |
2729 | menlo_resp->xri = rsp->ulpContext; | |
2730 | if (rsp->ulpStatus) { | |
2731 | if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) { | |
2732 | switch (rsp->un.ulpWord[4] & 0xff) { | |
2733 | case IOERR_SEQUENCE_TIMEOUT: | |
2734 | rc = -ETIMEDOUT; | |
2735 | break; | |
2736 | case IOERR_INVALID_RPI: | |
2737 | rc = -EFAULT; | |
2738 | break; | |
2739 | default: | |
2740 | rc = -EACCES; | |
2741 | break; | |
2742 | } | |
2743 | } else | |
2744 | rc = -EACCES; | |
2745 | } else | |
2746 | job->reply->reply_payload_rcv_len = | |
2747 | rsp->un.genreq64.bdl.bdeSize; | |
2748 | ||
2749 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); | |
2750 | lpfc_sli_release_iocbq(phba, rspiocbq); | |
2751 | lpfc_sli_release_iocbq(phba, cmdiocbq); | |
2752 | kfree(bmp); | |
2753 | kfree(dd_data); | |
2754 | /* make error code available to userspace */ | |
2755 | job->reply->result = rc; | |
2756 | /* complete the job back to userspace */ | |
2757 | job->job_done(job); | |
2758 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
2759 | return; | |
2760 | } | |
2761 | ||
2762 | /** | |
2763 | * lpfc_menlo_cmd - send an ioctl for menlo hardware | |
2764 | * @job: fc_bsg_job to handle | |
2765 | * | |
2766 | * This function issues a gen request 64 CR ioctl for all menlo cmd requests, | |
2767 | * all the command completions will return the xri for the command. | |
2768 | * For menlo data requests a gen request 64 CX is used to continue the exchange | |
2769 | * supplied in the menlo request header xri field. | |
2770 | **/ | |
2771 | static int | |
2772 | lpfc_menlo_cmd(struct fc_bsg_job *job) | |
2773 | { | |
2774 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
2775 | struct lpfc_hba *phba = vport->phba; | |
2776 | struct lpfc_iocbq *cmdiocbq, *rspiocbq; | |
2777 | IOCB_t *cmd, *rsp; | |
2778 | int rc = 0; | |
2779 | struct menlo_command *menlo_cmd; | |
2780 | struct menlo_response *menlo_resp; | |
2781 | struct lpfc_dmabuf *bmp = NULL; | |
2782 | int request_nseg; | |
2783 | int reply_nseg; | |
2784 | struct scatterlist *sgel = NULL; | |
2785 | int numbde; | |
2786 | dma_addr_t busaddr; | |
2787 | struct bsg_job_data *dd_data; | |
2788 | struct ulp_bde64 *bpl = NULL; | |
2789 | ||
2790 | /* in case no data is returned return just the return code */ | |
2791 | job->reply->reply_payload_rcv_len = 0; | |
2792 | ||
2793 | if (job->request_len < | |
2794 | sizeof(struct fc_bsg_request) + | |
2795 | sizeof(struct menlo_command)) { | |
2796 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
2797 | "2784 Received MENLO_CMD request below " | |
2798 | "minimum size\n"); | |
2799 | rc = -ERANGE; | |
2800 | goto no_dd_data; | |
2801 | } | |
2802 | ||
2803 | if (job->reply_len < | |
2804 | sizeof(struct fc_bsg_request) + sizeof(struct menlo_response)) { | |
2805 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
2806 | "2785 Received MENLO_CMD reply below " | |
2807 | "minimum size\n"); | |
2808 | rc = -ERANGE; | |
2809 | goto no_dd_data; | |
2810 | } | |
2811 | ||
2812 | if (!(phba->menlo_flag & HBA_MENLO_SUPPORT)) { | |
2813 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
2814 | "2786 Adapter does not support menlo " | |
2815 | "commands\n"); | |
2816 | rc = -EPERM; | |
2817 | goto no_dd_data; | |
2818 | } | |
2819 | ||
2820 | menlo_cmd = (struct menlo_command *) | |
2821 | job->request->rqst_data.h_vendor.vendor_cmd; | |
2822 | ||
2823 | menlo_resp = (struct menlo_response *) | |
2824 | job->reply->reply_data.vendor_reply.vendor_rsp; | |
2825 | ||
2826 | /* allocate our bsg tracking structure */ | |
2827 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); | |
2828 | if (!dd_data) { | |
2829 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
2830 | "2787 Failed allocation of dd_data\n"); | |
2831 | rc = -ENOMEM; | |
2832 | goto no_dd_data; | |
2833 | } | |
2834 | ||
2835 | bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
2836 | if (!bmp) { | |
2837 | rc = -ENOMEM; | |
2838 | goto free_dd; | |
2839 | } | |
2840 | ||
2841 | cmdiocbq = lpfc_sli_get_iocbq(phba); | |
2842 | if (!cmdiocbq) { | |
2843 | rc = -ENOMEM; | |
2844 | goto free_bmp; | |
2845 | } | |
2846 | ||
2847 | rspiocbq = lpfc_sli_get_iocbq(phba); | |
2848 | if (!rspiocbq) { | |
2849 | rc = -ENOMEM; | |
2850 | goto free_cmdiocbq; | |
2851 | } | |
2852 | ||
2853 | rsp = &rspiocbq->iocb; | |
2854 | ||
2855 | bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys); | |
2856 | if (!bmp->virt) { | |
2857 | rc = -ENOMEM; | |
2858 | goto free_rspiocbq; | |
2859 | } | |
2860 | ||
2861 | INIT_LIST_HEAD(&bmp->list); | |
2862 | bpl = (struct ulp_bde64 *) bmp->virt; | |
2863 | request_nseg = pci_map_sg(phba->pcidev, job->request_payload.sg_list, | |
2864 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
2865 | for_each_sg(job->request_payload.sg_list, sgel, request_nseg, numbde) { | |
2866 | busaddr = sg_dma_address(sgel); | |
2867 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
2868 | bpl->tus.f.bdeSize = sg_dma_len(sgel); | |
2869 | bpl->tus.w = cpu_to_le32(bpl->tus.w); | |
2870 | bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr)); | |
2871 | bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr)); | |
2872 | bpl++; | |
2873 | } | |
2874 | ||
2875 | reply_nseg = pci_map_sg(phba->pcidev, job->reply_payload.sg_list, | |
2876 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); | |
2877 | for_each_sg(job->reply_payload.sg_list, sgel, reply_nseg, numbde) { | |
2878 | busaddr = sg_dma_address(sgel); | |
2879 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; | |
2880 | bpl->tus.f.bdeSize = sg_dma_len(sgel); | |
2881 | bpl->tus.w = cpu_to_le32(bpl->tus.w); | |
2882 | bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr)); | |
2883 | bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr)); | |
2884 | bpl++; | |
2885 | } | |
2886 | ||
2887 | cmd = &cmdiocbq->iocb; | |
2888 | cmd->un.genreq64.bdl.ulpIoTag32 = 0; | |
2889 | cmd->un.genreq64.bdl.addrHigh = putPaddrHigh(bmp->phys); | |
2890 | cmd->un.genreq64.bdl.addrLow = putPaddrLow(bmp->phys); | |
2891 | cmd->un.genreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; | |
2892 | cmd->un.genreq64.bdl.bdeSize = | |
2893 | (request_nseg + reply_nseg) * sizeof(struct ulp_bde64); | |
2894 | cmd->un.genreq64.w5.hcsw.Fctl = (SI | LA); | |
2895 | cmd->un.genreq64.w5.hcsw.Dfctl = 0; | |
2896 | cmd->un.genreq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CMD; | |
2897 | cmd->un.genreq64.w5.hcsw.Type = MENLO_TRANSPORT_TYPE; /* 0xfe */ | |
2898 | cmd->ulpBdeCount = 1; | |
2899 | cmd->ulpClass = CLASS3; | |
2900 | cmd->ulpOwner = OWN_CHIP; | |
2901 | cmd->ulpLe = 1; /* Limited Edition */ | |
2902 | cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC; | |
2903 | cmdiocbq->vport = phba->pport; | |
2904 | /* We want the firmware to timeout before we do */ | |
2905 | cmd->ulpTimeout = MENLO_TIMEOUT - 5; | |
2906 | cmdiocbq->context3 = bmp; | |
2907 | cmdiocbq->context2 = rspiocbq; | |
2908 | cmdiocbq->iocb_cmpl = lpfc_bsg_menlo_cmd_cmp; | |
2909 | cmdiocbq->context1 = dd_data; | |
2910 | cmdiocbq->context2 = rspiocbq; | |
2911 | if (menlo_cmd->cmd == LPFC_BSG_VENDOR_MENLO_CMD) { | |
2912 | cmd->ulpCommand = CMD_GEN_REQUEST64_CR; | |
2913 | cmd->ulpPU = MENLO_PU; /* 3 */ | |
2914 | cmd->un.ulpWord[4] = MENLO_DID; /* 0x0000FC0E */ | |
2915 | cmd->ulpContext = MENLO_CONTEXT; /* 0 */ | |
2916 | } else { | |
2917 | cmd->ulpCommand = CMD_GEN_REQUEST64_CX; | |
2918 | cmd->ulpPU = 1; | |
2919 | cmd->un.ulpWord[4] = 0; | |
2920 | cmd->ulpContext = menlo_cmd->xri; | |
2921 | } | |
2922 | ||
2923 | dd_data->type = TYPE_MENLO; | |
2924 | dd_data->context_un.menlo.cmdiocbq = cmdiocbq; | |
2925 | dd_data->context_un.menlo.rspiocbq = rspiocbq; | |
2926 | dd_data->context_un.menlo.set_job = job; | |
2927 | dd_data->context_un.menlo.bmp = bmp; | |
2928 | ||
2929 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, | |
2930 | MENLO_TIMEOUT - 5); | |
2931 | if (rc == IOCB_SUCCESS) | |
2932 | return 0; /* done for now */ | |
2933 | ||
2934 | /* iocb failed so cleanup */ | |
2935 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, | |
2936 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
2937 | pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list, | |
2938 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); | |
2939 | ||
2940 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); | |
2941 | ||
2942 | free_rspiocbq: | |
2943 | lpfc_sli_release_iocbq(phba, rspiocbq); | |
2944 | free_cmdiocbq: | |
2945 | lpfc_sli_release_iocbq(phba, cmdiocbq); | |
2946 | free_bmp: | |
2947 | kfree(bmp); | |
2948 | free_dd: | |
2949 | kfree(dd_data); | |
2950 | no_dd_data: | |
2951 | /* make error code available to userspace */ | |
2952 | job->reply->result = rc; | |
2953 | job->dd_data = NULL; | |
2954 | return rc; | |
2955 | } | |
3b5dd52a JS |
2956 | /** |
2957 | * lpfc_bsg_hst_vendor - process a vendor-specific fc_bsg_job | |
2958 | * @job: fc_bsg_job to handle | |
2959 | **/ | |
2960 | static int | |
2961 | lpfc_bsg_hst_vendor(struct fc_bsg_job *job) | |
2962 | { | |
2963 | int command = job->request->rqst_data.h_vendor.vendor_cmd[0]; | |
2964 | int rc; | |
2965 | ||
2966 | switch (command) { | |
2967 | case LPFC_BSG_VENDOR_SET_CT_EVENT: | |
2968 | rc = lpfc_bsg_hba_set_event(job); | |
2969 | break; | |
2970 | case LPFC_BSG_VENDOR_GET_CT_EVENT: | |
2971 | rc = lpfc_bsg_hba_get_event(job); | |
2972 | break; | |
2973 | case LPFC_BSG_VENDOR_SEND_MGMT_RESP: | |
2974 | rc = lpfc_bsg_send_mgmt_rsp(job); | |
2975 | break; | |
2976 | case LPFC_BSG_VENDOR_DIAG_MODE: | |
2977 | rc = lpfc_bsg_diag_mode(job); | |
2978 | break; | |
2979 | case LPFC_BSG_VENDOR_DIAG_TEST: | |
2980 | rc = lpfc_bsg_diag_test(job); | |
2981 | break; | |
2982 | case LPFC_BSG_VENDOR_GET_MGMT_REV: | |
2983 | rc = lpfc_bsg_get_dfc_rev(job); | |
2984 | break; | |
2985 | case LPFC_BSG_VENDOR_MBOX: | |
2986 | rc = lpfc_bsg_mbox_cmd(job); | |
2987 | break; | |
e2aed29f JS |
2988 | case LPFC_BSG_VENDOR_MENLO_CMD: |
2989 | case LPFC_BSG_VENDOR_MENLO_DATA: | |
2990 | rc = lpfc_menlo_cmd(job); | |
2991 | break; | |
3b5dd52a JS |
2992 | default: |
2993 | rc = -EINVAL; | |
2994 | job->reply->reply_payload_rcv_len = 0; | |
2995 | /* make error code available to userspace */ | |
2996 | job->reply->result = rc; | |
2997 | break; | |
2998 | } | |
2999 | ||
3000 | return rc; | |
3001 | } | |
3002 | ||
3003 | /** | |
3004 | * lpfc_bsg_request - handle a bsg request from the FC transport | |
3005 | * @job: fc_bsg_job to handle | |
3006 | **/ | |
3007 | int | |
3008 | lpfc_bsg_request(struct fc_bsg_job *job) | |
3009 | { | |
3010 | uint32_t msgcode; | |
3011 | int rc; | |
3012 | ||
3013 | msgcode = job->request->msgcode; | |
3014 | switch (msgcode) { | |
3015 | case FC_BSG_HST_VENDOR: | |
3016 | rc = lpfc_bsg_hst_vendor(job); | |
3017 | break; | |
3018 | case FC_BSG_RPT_ELS: | |
3019 | rc = lpfc_bsg_rport_els(job); | |
3020 | break; | |
3021 | case FC_BSG_RPT_CT: | |
3022 | rc = lpfc_bsg_send_mgmt_cmd(job); | |
3023 | break; | |
3024 | default: | |
3025 | rc = -EINVAL; | |
3026 | job->reply->reply_payload_rcv_len = 0; | |
3027 | /* make error code available to userspace */ | |
3028 | job->reply->result = rc; | |
3029 | break; | |
3030 | } | |
3031 | ||
3032 | return rc; | |
3033 | } | |
3034 | ||
3035 | /** | |
3036 | * lpfc_bsg_timeout - handle timeout of a bsg request from the FC transport | |
3037 | * @job: fc_bsg_job that has timed out | |
3038 | * | |
3039 | * This function just aborts the job's IOCB. The aborted IOCB will return to | |
3040 | * the waiting function which will handle passing the error back to userspace | |
3041 | **/ | |
3042 | int | |
3043 | lpfc_bsg_timeout(struct fc_bsg_job *job) | |
3044 | { | |
3045 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
3046 | struct lpfc_hba *phba = vport->phba; | |
3047 | struct lpfc_iocbq *cmdiocb; | |
3048 | struct lpfc_bsg_event *evt; | |
3049 | struct lpfc_bsg_iocb *iocb; | |
3050 | struct lpfc_bsg_mbox *mbox; | |
e2aed29f | 3051 | struct lpfc_bsg_menlo *menlo; |
3b5dd52a JS |
3052 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; |
3053 | struct bsg_job_data *dd_data; | |
3054 | unsigned long flags; | |
3055 | ||
3056 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
3057 | dd_data = (struct bsg_job_data *)job->dd_data; | |
3058 | /* timeout and completion crossed paths if no dd_data */ | |
3059 | if (!dd_data) { | |
3060 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
3061 | return 0; | |
4cc0e56e JS |
3062 | } |
3063 | ||
3064 | switch (dd_data->type) { | |
3065 | case TYPE_IOCB: | |
3066 | iocb = &dd_data->context_un.iocb; | |
3067 | cmdiocb = iocb->cmdiocbq; | |
3068 | /* hint to completion handler that the job timed out */ | |
3069 | job->reply->result = -EAGAIN; | |
3070 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
3071 | /* this will call our completion handler */ | |
3072 | spin_lock_irq(&phba->hbalock); | |
f1c3b0fc | 3073 | lpfc_sli_issue_abort_iotag(phba, pring, cmdiocb); |
4cc0e56e JS |
3074 | spin_unlock_irq(&phba->hbalock); |
3075 | break; | |
3076 | case TYPE_EVT: | |
3077 | evt = dd_data->context_un.evt; | |
3078 | /* this event has no job anymore */ | |
3079 | evt->set_job = NULL; | |
3080 | job->dd_data = NULL; | |
3081 | job->reply->reply_payload_rcv_len = 0; | |
3082 | /* Return -EAGAIN which is our way of signallying the | |
3083 | * app to retry. | |
3084 | */ | |
3085 | job->reply->result = -EAGAIN; | |
3086 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
3087 | job->job_done(job); | |
3088 | break; | |
3b5dd52a JS |
3089 | case TYPE_MBOX: |
3090 | mbox = &dd_data->context_un.mbox; | |
3091 | /* this mbox has no job anymore */ | |
3092 | mbox->set_job = NULL; | |
3093 | job->dd_data = NULL; | |
3094 | job->reply->reply_payload_rcv_len = 0; | |
3095 | job->reply->result = -EAGAIN; | |
3096 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
3097 | job->job_done(job); | |
3098 | break; | |
e2aed29f JS |
3099 | case TYPE_MENLO: |
3100 | menlo = &dd_data->context_un.menlo; | |
3101 | cmdiocb = menlo->cmdiocbq; | |
3102 | /* hint to completion handler that the job timed out */ | |
3103 | job->reply->result = -EAGAIN; | |
3104 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
3105 | /* this will call our completion handler */ | |
3106 | spin_lock_irq(&phba->hbalock); | |
3107 | lpfc_sli_issue_abort_iotag(phba, pring, cmdiocb); | |
3108 | spin_unlock_irq(&phba->hbalock); | |
3109 | break; | |
4cc0e56e JS |
3110 | default: |
3111 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
3112 | break; | |
3113 | } | |
f1c3b0fc | 3114 | |
4cc0e56e JS |
3115 | /* scsi transport fc fc_bsg_job_timeout expects a zero return code, |
3116 | * otherwise an error message will be displayed on the console | |
3117 | * so always return success (zero) | |
3118 | */ | |
f1c3b0fc JS |
3119 | return 0; |
3120 | } |