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f1c3b0fc JS |
1 | /******************************************************************* |
2 | * This file is part of the Emulex Linux Device Driver for * | |
3 | * Fibre Channel Host Bus Adapters. * | |
4fede78f | 4 | * Copyright (C) 2009-2010 Emulex. All rights reserved. * |
f1c3b0fc JS |
5 | * EMULEX and SLI are trademarks of Emulex. * |
6 | * www.emulex.com * | |
7 | * * | |
8 | * This program is free software; you can redistribute it and/or * | |
9 | * modify it under the terms of version 2 of the GNU General * | |
10 | * Public License as published by the Free Software Foundation. * | |
11 | * This program is distributed in the hope that it will be useful. * | |
12 | * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * | |
13 | * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * | |
14 | * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * | |
15 | * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * | |
16 | * TO BE LEGALLY INVALID. See the GNU General Public License for * | |
17 | * more details, a copy of which can be found in the file COPYING * | |
18 | * included with this package. * | |
19 | *******************************************************************/ | |
20 | ||
21 | #include <linux/interrupt.h> | |
22 | #include <linux/mempool.h> | |
23 | #include <linux/pci.h> | |
5a0e3ad6 | 24 | #include <linux/slab.h> |
277e76f1 | 25 | #include <linux/delay.h> |
f1c3b0fc JS |
26 | |
27 | #include <scsi/scsi.h> | |
28 | #include <scsi/scsi_host.h> | |
29 | #include <scsi/scsi_transport_fc.h> | |
30 | #include <scsi/scsi_bsg_fc.h> | |
6a9c52cf | 31 | #include <scsi/fc/fc_fs.h> |
f1c3b0fc JS |
32 | |
33 | #include "lpfc_hw4.h" | |
34 | #include "lpfc_hw.h" | |
35 | #include "lpfc_sli.h" | |
36 | #include "lpfc_sli4.h" | |
37 | #include "lpfc_nl.h" | |
4fede78f | 38 | #include "lpfc_bsg.h" |
f1c3b0fc JS |
39 | #include "lpfc_disc.h" |
40 | #include "lpfc_scsi.h" | |
41 | #include "lpfc.h" | |
42 | #include "lpfc_logmsg.h" | |
43 | #include "lpfc_crtn.h" | |
44 | #include "lpfc_vport.h" | |
45 | #include "lpfc_version.h" | |
46 | ||
4cc0e56e JS |
47 | struct lpfc_bsg_event { |
48 | struct list_head node; | |
49 | struct kref kref; | |
50 | wait_queue_head_t wq; | |
51 | ||
52 | /* Event type and waiter identifiers */ | |
53 | uint32_t type_mask; | |
54 | uint32_t req_id; | |
55 | uint32_t reg_id; | |
56 | ||
57 | /* next two flags are here for the auto-delete logic */ | |
58 | unsigned long wait_time_stamp; | |
59 | int waiting; | |
60 | ||
61 | /* seen and not seen events */ | |
62 | struct list_head events_to_get; | |
63 | struct list_head events_to_see; | |
64 | ||
65 | /* job waiting for this event to finish */ | |
66 | struct fc_bsg_job *set_job; | |
67 | }; | |
68 | ||
69 | struct lpfc_bsg_iocb { | |
70 | struct lpfc_iocbq *cmdiocbq; | |
71 | struct lpfc_iocbq *rspiocbq; | |
72 | struct lpfc_dmabuf *bmp; | |
73 | struct lpfc_nodelist *ndlp; | |
74 | ||
75 | /* job waiting for this iocb to finish */ | |
76 | struct fc_bsg_job *set_job; | |
77 | }; | |
78 | ||
3b5dd52a JS |
79 | struct lpfc_bsg_mbox { |
80 | LPFC_MBOXQ_t *pmboxq; | |
81 | MAILBOX_t *mb; | |
7a470277 JS |
82 | struct lpfc_dmabuf *rxbmp; /* for BIU diags */ |
83 | struct lpfc_dmabufext *dmp; /* for BIU diags */ | |
84 | uint8_t *ext; /* extended mailbox data */ | |
85 | uint32_t mbOffset; /* from app */ | |
86 | uint32_t inExtWLen; /* from app */ | |
c7495937 | 87 | uint32_t outExtWLen; /* from app */ |
3b5dd52a JS |
88 | |
89 | /* job waiting for this mbox command to finish */ | |
90 | struct fc_bsg_job *set_job; | |
91 | }; | |
92 | ||
e2aed29f JS |
93 | #define MENLO_DID 0x0000FC0E |
94 | ||
95 | struct lpfc_bsg_menlo { | |
96 | struct lpfc_iocbq *cmdiocbq; | |
97 | struct lpfc_iocbq *rspiocbq; | |
98 | struct lpfc_dmabuf *bmp; | |
99 | ||
100 | /* job waiting for this iocb to finish */ | |
101 | struct fc_bsg_job *set_job; | |
102 | }; | |
103 | ||
4cc0e56e JS |
104 | #define TYPE_EVT 1 |
105 | #define TYPE_IOCB 2 | |
3b5dd52a | 106 | #define TYPE_MBOX 3 |
e2aed29f | 107 | #define TYPE_MENLO 4 |
4cc0e56e JS |
108 | struct bsg_job_data { |
109 | uint32_t type; | |
110 | union { | |
111 | struct lpfc_bsg_event *evt; | |
112 | struct lpfc_bsg_iocb iocb; | |
3b5dd52a | 113 | struct lpfc_bsg_mbox mbox; |
e2aed29f | 114 | struct lpfc_bsg_menlo menlo; |
4cc0e56e JS |
115 | } context_un; |
116 | }; | |
117 | ||
118 | struct event_data { | |
119 | struct list_head node; | |
120 | uint32_t type; | |
121 | uint32_t immed_dat; | |
122 | void *data; | |
123 | uint32_t len; | |
124 | }; | |
125 | ||
3b5dd52a | 126 | #define BUF_SZ_4K 4096 |
4cc0e56e JS |
127 | #define SLI_CT_ELX_LOOPBACK 0x10 |
128 | ||
129 | enum ELX_LOOPBACK_CMD { | |
130 | ELX_LOOPBACK_XRI_SETUP, | |
131 | ELX_LOOPBACK_DATA, | |
132 | }; | |
133 | ||
3b5dd52a JS |
134 | #define ELX_LOOPBACK_HEADER_SZ \ |
135 | (size_t)(&((struct lpfc_sli_ct_request *)NULL)->un) | |
136 | ||
4cc0e56e JS |
137 | struct lpfc_dmabufext { |
138 | struct lpfc_dmabuf dma; | |
139 | uint32_t size; | |
140 | uint32_t flag; | |
141 | }; | |
142 | ||
143 | /** | |
144 | * lpfc_bsg_send_mgmt_cmd_cmp - lpfc_bsg_send_mgmt_cmd's completion handler | |
145 | * @phba: Pointer to HBA context object. | |
146 | * @cmdiocbq: Pointer to command iocb. | |
147 | * @rspiocbq: Pointer to response iocb. | |
148 | * | |
149 | * This function is the completion handler for iocbs issued using | |
150 | * lpfc_bsg_send_mgmt_cmd function. This function is called by the | |
151 | * ring event handler function without any lock held. This function | |
152 | * can be called from both worker thread context and interrupt | |
153 | * context. This function also can be called from another thread which | |
154 | * cleans up the SLI layer objects. | |
155 | * This function copies the contents of the response iocb to the | |
156 | * response iocb memory object provided by the caller of | |
157 | * lpfc_sli_issue_iocb_wait and then wakes up the thread which | |
158 | * sleeps for the iocb completion. | |
159 | **/ | |
160 | static void | |
161 | lpfc_bsg_send_mgmt_cmd_cmp(struct lpfc_hba *phba, | |
162 | struct lpfc_iocbq *cmdiocbq, | |
163 | struct lpfc_iocbq *rspiocbq) | |
164 | { | |
4cc0e56e JS |
165 | struct bsg_job_data *dd_data; |
166 | struct fc_bsg_job *job; | |
167 | IOCB_t *rsp; | |
168 | struct lpfc_dmabuf *bmp; | |
169 | struct lpfc_nodelist *ndlp; | |
170 | struct lpfc_bsg_iocb *iocb; | |
171 | unsigned long flags; | |
172 | int rc = 0; | |
173 | ||
174 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
be858b65 | 175 | dd_data = cmdiocbq->context2; |
4cc0e56e JS |
176 | if (!dd_data) { |
177 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
be858b65 | 178 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
4cc0e56e JS |
179 | return; |
180 | } | |
181 | ||
182 | iocb = &dd_data->context_un.iocb; | |
183 | job = iocb->set_job; | |
184 | job->dd_data = NULL; /* so timeout handler does not reply */ | |
185 | ||
4cc0e56e | 186 | bmp = iocb->bmp; |
4cc0e56e | 187 | rsp = &rspiocbq->iocb; |
be858b65 | 188 | ndlp = cmdiocbq->context1; |
4cc0e56e JS |
189 | |
190 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, | |
191 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
192 | pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list, | |
193 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); | |
194 | ||
195 | if (rsp->ulpStatus) { | |
196 | if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) { | |
197 | switch (rsp->un.ulpWord[4] & 0xff) { | |
198 | case IOERR_SEQUENCE_TIMEOUT: | |
199 | rc = -ETIMEDOUT; | |
200 | break; | |
201 | case IOERR_INVALID_RPI: | |
202 | rc = -EFAULT; | |
203 | break; | |
204 | default: | |
205 | rc = -EACCES; | |
206 | break; | |
207 | } | |
208 | } else | |
209 | rc = -EACCES; | |
210 | } else | |
211 | job->reply->reply_payload_rcv_len = | |
212 | rsp->un.genreq64.bdl.bdeSize; | |
213 | ||
214 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); | |
4cc0e56e JS |
215 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
216 | lpfc_nlp_put(ndlp); | |
217 | kfree(bmp); | |
218 | kfree(dd_data); | |
219 | /* make error code available to userspace */ | |
220 | job->reply->result = rc; | |
221 | /* complete the job back to userspace */ | |
222 | job->job_done(job); | |
223 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
224 | return; | |
225 | } | |
226 | ||
f1c3b0fc | 227 | /** |
4cc0e56e | 228 | * lpfc_bsg_send_mgmt_cmd - send a CT command from a bsg request |
f1c3b0fc | 229 | * @job: fc_bsg_job to handle |
3b5dd52a | 230 | **/ |
f1c3b0fc | 231 | static int |
4cc0e56e | 232 | lpfc_bsg_send_mgmt_cmd(struct fc_bsg_job *job) |
f1c3b0fc | 233 | { |
f1c3b0fc JS |
234 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; |
235 | struct lpfc_hba *phba = vport->phba; | |
236 | struct lpfc_rport_data *rdata = job->rport->dd_data; | |
237 | struct lpfc_nodelist *ndlp = rdata->pnode; | |
238 | struct ulp_bde64 *bpl = NULL; | |
239 | uint32_t timeout; | |
240 | struct lpfc_iocbq *cmdiocbq = NULL; | |
f1c3b0fc | 241 | IOCB_t *cmd; |
f1c3b0fc JS |
242 | struct lpfc_dmabuf *bmp = NULL; |
243 | int request_nseg; | |
244 | int reply_nseg; | |
245 | struct scatterlist *sgel = NULL; | |
246 | int numbde; | |
247 | dma_addr_t busaddr; | |
4cc0e56e JS |
248 | struct bsg_job_data *dd_data; |
249 | uint32_t creg_val; | |
f1c3b0fc | 250 | int rc = 0; |
d439d286 | 251 | int iocb_stat; |
f1c3b0fc JS |
252 | |
253 | /* in case no data is transferred */ | |
254 | job->reply->reply_payload_rcv_len = 0; | |
255 | ||
4cc0e56e JS |
256 | /* allocate our bsg tracking structure */ |
257 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); | |
258 | if (!dd_data) { | |
259 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
260 | "2733 Failed allocation of dd_data\n"); | |
261 | rc = -ENOMEM; | |
262 | goto no_dd_data; | |
263 | } | |
264 | ||
f1c3b0fc | 265 | if (!lpfc_nlp_get(ndlp)) { |
4cc0e56e JS |
266 | rc = -ENODEV; |
267 | goto no_ndlp; | |
268 | } | |
269 | ||
270 | bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
271 | if (!bmp) { | |
272 | rc = -ENOMEM; | |
273 | goto free_ndlp; | |
f1c3b0fc JS |
274 | } |
275 | ||
276 | if (ndlp->nlp_flag & NLP_ELS_SND_MASK) { | |
277 | rc = -ENODEV; | |
4cc0e56e | 278 | goto free_bmp; |
f1c3b0fc JS |
279 | } |
280 | ||
f1c3b0fc JS |
281 | cmdiocbq = lpfc_sli_get_iocbq(phba); |
282 | if (!cmdiocbq) { | |
283 | rc = -ENOMEM; | |
4cc0e56e | 284 | goto free_bmp; |
f1c3b0fc | 285 | } |
f1c3b0fc | 286 | |
4cc0e56e | 287 | cmd = &cmdiocbq->iocb; |
f1c3b0fc JS |
288 | bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys); |
289 | if (!bmp->virt) { | |
290 | rc = -ENOMEM; | |
be858b65 | 291 | goto free_cmdiocbq; |
f1c3b0fc | 292 | } |
f1c3b0fc JS |
293 | |
294 | INIT_LIST_HEAD(&bmp->list); | |
295 | bpl = (struct ulp_bde64 *) bmp->virt; | |
f1c3b0fc JS |
296 | request_nseg = pci_map_sg(phba->pcidev, job->request_payload.sg_list, |
297 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
298 | for_each_sg(job->request_payload.sg_list, sgel, request_nseg, numbde) { | |
299 | busaddr = sg_dma_address(sgel); | |
300 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
301 | bpl->tus.f.bdeSize = sg_dma_len(sgel); | |
302 | bpl->tus.w = cpu_to_le32(bpl->tus.w); | |
303 | bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr)); | |
304 | bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr)); | |
305 | bpl++; | |
306 | } | |
307 | ||
308 | reply_nseg = pci_map_sg(phba->pcidev, job->reply_payload.sg_list, | |
309 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); | |
310 | for_each_sg(job->reply_payload.sg_list, sgel, reply_nseg, numbde) { | |
311 | busaddr = sg_dma_address(sgel); | |
312 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; | |
313 | bpl->tus.f.bdeSize = sg_dma_len(sgel); | |
314 | bpl->tus.w = cpu_to_le32(bpl->tus.w); | |
315 | bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr)); | |
316 | bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr)); | |
317 | bpl++; | |
318 | } | |
319 | ||
320 | cmd->un.genreq64.bdl.ulpIoTag32 = 0; | |
321 | cmd->un.genreq64.bdl.addrHigh = putPaddrHigh(bmp->phys); | |
322 | cmd->un.genreq64.bdl.addrLow = putPaddrLow(bmp->phys); | |
323 | cmd->un.genreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; | |
324 | cmd->un.genreq64.bdl.bdeSize = | |
325 | (request_nseg + reply_nseg) * sizeof(struct ulp_bde64); | |
326 | cmd->ulpCommand = CMD_GEN_REQUEST64_CR; | |
327 | cmd->un.genreq64.w5.hcsw.Fctl = (SI | LA); | |
328 | cmd->un.genreq64.w5.hcsw.Dfctl = 0; | |
6a9c52cf JS |
329 | cmd->un.genreq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL; |
330 | cmd->un.genreq64.w5.hcsw.Type = FC_TYPE_CT; | |
f1c3b0fc JS |
331 | cmd->ulpBdeCount = 1; |
332 | cmd->ulpLe = 1; | |
333 | cmd->ulpClass = CLASS3; | |
334 | cmd->ulpContext = ndlp->nlp_rpi; | |
335 | cmd->ulpOwner = OWN_CHIP; | |
336 | cmdiocbq->vport = phba->pport; | |
4cc0e56e | 337 | cmdiocbq->context3 = bmp; |
f1c3b0fc | 338 | cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC; |
f1c3b0fc | 339 | timeout = phba->fc_ratov * 2; |
4cc0e56e JS |
340 | cmd->ulpTimeout = timeout; |
341 | ||
342 | cmdiocbq->iocb_cmpl = lpfc_bsg_send_mgmt_cmd_cmp; | |
be858b65 JS |
343 | cmdiocbq->context1 = ndlp; |
344 | cmdiocbq->context2 = dd_data; | |
4cc0e56e JS |
345 | dd_data->type = TYPE_IOCB; |
346 | dd_data->context_un.iocb.cmdiocbq = cmdiocbq; | |
4cc0e56e JS |
347 | dd_data->context_un.iocb.set_job = job; |
348 | dd_data->context_un.iocb.bmp = bmp; | |
4cc0e56e JS |
349 | |
350 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { | |
351 | creg_val = readl(phba->HCregaddr); | |
352 | creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); | |
353 | writel(creg_val, phba->HCregaddr); | |
354 | readl(phba->HCregaddr); /* flush */ | |
f1c3b0fc JS |
355 | } |
356 | ||
d439d286 JS |
357 | iocb_stat = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, 0); |
358 | if (iocb_stat == IOCB_SUCCESS) | |
4cc0e56e | 359 | return 0; /* done for now */ |
d439d286 JS |
360 | else if (iocb_stat == IOCB_BUSY) |
361 | rc = -EAGAIN; | |
2a9bf3d0 | 362 | else |
d439d286 | 363 | rc = -EIO; |
2a9bf3d0 | 364 | |
f1c3b0fc | 365 | |
4cc0e56e JS |
366 | /* iocb failed so cleanup */ |
367 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, | |
368 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
369 | pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list, | |
370 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); | |
f1c3b0fc | 371 | |
f1c3b0fc | 372 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); |
4cc0e56e | 373 | |
f1c3b0fc JS |
374 | free_cmdiocbq: |
375 | lpfc_sli_release_iocbq(phba, cmdiocbq); | |
4cc0e56e JS |
376 | free_bmp: |
377 | kfree(bmp); | |
378 | free_ndlp: | |
f1c3b0fc | 379 | lpfc_nlp_put(ndlp); |
4cc0e56e JS |
380 | no_ndlp: |
381 | kfree(dd_data); | |
382 | no_dd_data: | |
383 | /* make error code available to userspace */ | |
384 | job->reply->result = rc; | |
385 | job->dd_data = NULL; | |
386 | return rc; | |
387 | } | |
388 | ||
389 | /** | |
390 | * lpfc_bsg_rport_els_cmp - lpfc_bsg_rport_els's completion handler | |
391 | * @phba: Pointer to HBA context object. | |
392 | * @cmdiocbq: Pointer to command iocb. | |
393 | * @rspiocbq: Pointer to response iocb. | |
394 | * | |
395 | * This function is the completion handler for iocbs issued using | |
396 | * lpfc_bsg_rport_els_cmp function. This function is called by the | |
397 | * ring event handler function without any lock held. This function | |
398 | * can be called from both worker thread context and interrupt | |
399 | * context. This function also can be called from other thread which | |
400 | * cleans up the SLI layer objects. | |
3b5dd52a | 401 | * This function copies the contents of the response iocb to the |
4cc0e56e JS |
402 | * response iocb memory object provided by the caller of |
403 | * lpfc_sli_issue_iocb_wait and then wakes up the thread which | |
404 | * sleeps for the iocb completion. | |
405 | **/ | |
406 | static void | |
407 | lpfc_bsg_rport_els_cmp(struct lpfc_hba *phba, | |
408 | struct lpfc_iocbq *cmdiocbq, | |
409 | struct lpfc_iocbq *rspiocbq) | |
410 | { | |
411 | struct bsg_job_data *dd_data; | |
412 | struct fc_bsg_job *job; | |
413 | IOCB_t *rsp; | |
414 | struct lpfc_nodelist *ndlp; | |
415 | struct lpfc_dmabuf *pbuflist = NULL; | |
416 | struct fc_bsg_ctels_reply *els_reply; | |
417 | uint8_t *rjt_data; | |
418 | unsigned long flags; | |
419 | int rc = 0; | |
420 | ||
421 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
422 | dd_data = cmdiocbq->context1; | |
423 | /* normal completion and timeout crossed paths, already done */ | |
424 | if (!dd_data) { | |
67221a42 | 425 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
4cc0e56e JS |
426 | return; |
427 | } | |
428 | ||
429 | cmdiocbq->iocb_flag |= LPFC_IO_WAKE; | |
430 | if (cmdiocbq->context2 && rspiocbq) | |
431 | memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb, | |
432 | &rspiocbq->iocb, sizeof(IOCB_t)); | |
433 | ||
434 | job = dd_data->context_un.iocb.set_job; | |
435 | cmdiocbq = dd_data->context_un.iocb.cmdiocbq; | |
436 | rspiocbq = dd_data->context_un.iocb.rspiocbq; | |
437 | rsp = &rspiocbq->iocb; | |
438 | ndlp = dd_data->context_un.iocb.ndlp; | |
439 | ||
440 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, | |
441 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
442 | pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list, | |
443 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); | |
444 | ||
445 | if (job->reply->result == -EAGAIN) | |
446 | rc = -EAGAIN; | |
447 | else if (rsp->ulpStatus == IOSTAT_SUCCESS) | |
448 | job->reply->reply_payload_rcv_len = | |
449 | rsp->un.elsreq64.bdl.bdeSize; | |
450 | else if (rsp->ulpStatus == IOSTAT_LS_RJT) { | |
451 | job->reply->reply_payload_rcv_len = | |
452 | sizeof(struct fc_bsg_ctels_reply); | |
453 | /* LS_RJT data returned in word 4 */ | |
454 | rjt_data = (uint8_t *)&rsp->un.ulpWord[4]; | |
455 | els_reply = &job->reply->reply_data.ctels_reply; | |
456 | els_reply->status = FC_CTELS_STATUS_REJECT; | |
457 | els_reply->rjt_data.action = rjt_data[3]; | |
458 | els_reply->rjt_data.reason_code = rjt_data[2]; | |
459 | els_reply->rjt_data.reason_explanation = rjt_data[1]; | |
460 | els_reply->rjt_data.vendor_unique = rjt_data[0]; | |
461 | } else | |
462 | rc = -EIO; | |
f1c3b0fc | 463 | |
4cc0e56e JS |
464 | pbuflist = (struct lpfc_dmabuf *) cmdiocbq->context3; |
465 | lpfc_mbuf_free(phba, pbuflist->virt, pbuflist->phys); | |
466 | lpfc_sli_release_iocbq(phba, rspiocbq); | |
467 | lpfc_sli_release_iocbq(phba, cmdiocbq); | |
468 | lpfc_nlp_put(ndlp); | |
469 | kfree(dd_data); | |
f1c3b0fc JS |
470 | /* make error code available to userspace */ |
471 | job->reply->result = rc; | |
4cc0e56e | 472 | job->dd_data = NULL; |
f1c3b0fc JS |
473 | /* complete the job back to userspace */ |
474 | job->job_done(job); | |
4cc0e56e JS |
475 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
476 | return; | |
f1c3b0fc JS |
477 | } |
478 | ||
479 | /** | |
480 | * lpfc_bsg_rport_els - send an ELS command from a bsg request | |
481 | * @job: fc_bsg_job to handle | |
3b5dd52a | 482 | **/ |
f1c3b0fc JS |
483 | static int |
484 | lpfc_bsg_rport_els(struct fc_bsg_job *job) | |
485 | { | |
486 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
487 | struct lpfc_hba *phba = vport->phba; | |
488 | struct lpfc_rport_data *rdata = job->rport->dd_data; | |
489 | struct lpfc_nodelist *ndlp = rdata->pnode; | |
f1c3b0fc JS |
490 | uint32_t elscmd; |
491 | uint32_t cmdsize; | |
492 | uint32_t rspsize; | |
493 | struct lpfc_iocbq *rspiocbq; | |
494 | struct lpfc_iocbq *cmdiocbq; | |
495 | IOCB_t *rsp; | |
496 | uint16_t rpi = 0; | |
497 | struct lpfc_dmabuf *pcmd; | |
498 | struct lpfc_dmabuf *prsp; | |
499 | struct lpfc_dmabuf *pbuflist = NULL; | |
500 | struct ulp_bde64 *bpl; | |
f1c3b0fc JS |
501 | int request_nseg; |
502 | int reply_nseg; | |
503 | struct scatterlist *sgel = NULL; | |
504 | int numbde; | |
505 | dma_addr_t busaddr; | |
4cc0e56e JS |
506 | struct bsg_job_data *dd_data; |
507 | uint32_t creg_val; | |
f1c3b0fc JS |
508 | int rc = 0; |
509 | ||
510 | /* in case no data is transferred */ | |
511 | job->reply->reply_payload_rcv_len = 0; | |
512 | ||
4cc0e56e JS |
513 | /* allocate our bsg tracking structure */ |
514 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); | |
515 | if (!dd_data) { | |
516 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
517 | "2735 Failed allocation of dd_data\n"); | |
518 | rc = -ENOMEM; | |
519 | goto no_dd_data; | |
520 | } | |
521 | ||
f1c3b0fc JS |
522 | if (!lpfc_nlp_get(ndlp)) { |
523 | rc = -ENODEV; | |
4cc0e56e | 524 | goto free_dd_data; |
f1c3b0fc JS |
525 | } |
526 | ||
527 | elscmd = job->request->rqst_data.r_els.els_code; | |
528 | cmdsize = job->request_payload.payload_len; | |
529 | rspsize = job->reply_payload.payload_len; | |
530 | rspiocbq = lpfc_sli_get_iocbq(phba); | |
531 | if (!rspiocbq) { | |
532 | lpfc_nlp_put(ndlp); | |
533 | rc = -ENOMEM; | |
4cc0e56e | 534 | goto free_dd_data; |
f1c3b0fc JS |
535 | } |
536 | ||
537 | rsp = &rspiocbq->iocb; | |
538 | rpi = ndlp->nlp_rpi; | |
539 | ||
4cc0e56e | 540 | cmdiocbq = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, |
f1c3b0fc | 541 | ndlp->nlp_DID, elscmd); |
f1c3b0fc | 542 | if (!cmdiocbq) { |
4cc0e56e JS |
543 | rc = -EIO; |
544 | goto free_rspiocbq; | |
f1c3b0fc JS |
545 | } |
546 | ||
4cc0e56e | 547 | /* prep els iocb set context1 to the ndlp, context2 to the command |
3b5dd52a JS |
548 | * dmabuf, context3 holds the data dmabuf |
549 | */ | |
f1c3b0fc JS |
550 | pcmd = (struct lpfc_dmabuf *) cmdiocbq->context2; |
551 | prsp = (struct lpfc_dmabuf *) pcmd->list.next; | |
f1c3b0fc JS |
552 | lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys); |
553 | kfree(pcmd); | |
554 | lpfc_mbuf_free(phba, prsp->virt, prsp->phys); | |
555 | kfree(prsp); | |
556 | cmdiocbq->context2 = NULL; | |
557 | ||
558 | pbuflist = (struct lpfc_dmabuf *) cmdiocbq->context3; | |
559 | bpl = (struct ulp_bde64 *) pbuflist->virt; | |
560 | ||
561 | request_nseg = pci_map_sg(phba->pcidev, job->request_payload.sg_list, | |
562 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
f1c3b0fc JS |
563 | for_each_sg(job->request_payload.sg_list, sgel, request_nseg, numbde) { |
564 | busaddr = sg_dma_address(sgel); | |
565 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
566 | bpl->tus.f.bdeSize = sg_dma_len(sgel); | |
567 | bpl->tus.w = cpu_to_le32(bpl->tus.w); | |
568 | bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr)); | |
569 | bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr)); | |
570 | bpl++; | |
571 | } | |
572 | ||
573 | reply_nseg = pci_map_sg(phba->pcidev, job->reply_payload.sg_list, | |
574 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); | |
575 | for_each_sg(job->reply_payload.sg_list, sgel, reply_nseg, numbde) { | |
576 | busaddr = sg_dma_address(sgel); | |
577 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; | |
578 | bpl->tus.f.bdeSize = sg_dma_len(sgel); | |
579 | bpl->tus.w = cpu_to_le32(bpl->tus.w); | |
580 | bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr)); | |
581 | bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr)); | |
582 | bpl++; | |
583 | } | |
f1c3b0fc JS |
584 | cmdiocbq->iocb.un.elsreq64.bdl.bdeSize = |
585 | (request_nseg + reply_nseg) * sizeof(struct ulp_bde64); | |
586 | cmdiocbq->iocb.ulpContext = rpi; | |
587 | cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC; | |
588 | cmdiocbq->context1 = NULL; | |
589 | cmdiocbq->context2 = NULL; | |
590 | ||
4cc0e56e JS |
591 | cmdiocbq->iocb_cmpl = lpfc_bsg_rport_els_cmp; |
592 | cmdiocbq->context1 = dd_data; | |
593 | cmdiocbq->context2 = rspiocbq; | |
594 | dd_data->type = TYPE_IOCB; | |
595 | dd_data->context_un.iocb.cmdiocbq = cmdiocbq; | |
596 | dd_data->context_un.iocb.rspiocbq = rspiocbq; | |
597 | dd_data->context_un.iocb.set_job = job; | |
598 | dd_data->context_un.iocb.bmp = NULL;; | |
599 | dd_data->context_un.iocb.ndlp = ndlp; | |
600 | ||
601 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { | |
602 | creg_val = readl(phba->HCregaddr); | |
603 | creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); | |
604 | writel(creg_val, phba->HCregaddr); | |
605 | readl(phba->HCregaddr); /* flush */ | |
606 | } | |
607 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, 0); | |
f1c3b0fc | 608 | lpfc_nlp_put(ndlp); |
4cc0e56e JS |
609 | if (rc == IOCB_SUCCESS) |
610 | return 0; /* done for now */ | |
2a9bf3d0 | 611 | else if (rc == IOCB_BUSY) |
d439d286 | 612 | rc = -EAGAIN; |
2a9bf3d0 | 613 | else |
d439d286 | 614 | rc = -EIO; |
f1c3b0fc | 615 | |
4cc0e56e JS |
616 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, |
617 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
618 | pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list, | |
619 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); | |
f1c3b0fc | 620 | |
4cc0e56e | 621 | lpfc_mbuf_free(phba, pbuflist->virt, pbuflist->phys); |
f1c3b0fc | 622 | |
4cc0e56e | 623 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
f1c3b0fc | 624 | |
4cc0e56e JS |
625 | free_rspiocbq: |
626 | lpfc_sli_release_iocbq(phba, rspiocbq); | |
f1c3b0fc | 627 | |
4cc0e56e JS |
628 | free_dd_data: |
629 | kfree(dd_data); | |
f1c3b0fc | 630 | |
4cc0e56e JS |
631 | no_dd_data: |
632 | /* make error code available to userspace */ | |
633 | job->reply->result = rc; | |
634 | job->dd_data = NULL; | |
635 | return rc; | |
f1c3b0fc JS |
636 | } |
637 | ||
3b5dd52a JS |
638 | /** |
639 | * lpfc_bsg_event_free - frees an allocated event structure | |
640 | * @kref: Pointer to a kref. | |
641 | * | |
642 | * Called from kref_put. Back cast the kref into an event structure address. | |
643 | * Free any events to get, delete associated nodes, free any events to see, | |
644 | * free any data then free the event itself. | |
645 | **/ | |
f1c3b0fc | 646 | static void |
4cc0e56e | 647 | lpfc_bsg_event_free(struct kref *kref) |
f1c3b0fc | 648 | { |
4cc0e56e JS |
649 | struct lpfc_bsg_event *evt = container_of(kref, struct lpfc_bsg_event, |
650 | kref); | |
f1c3b0fc JS |
651 | struct event_data *ed; |
652 | ||
653 | list_del(&evt->node); | |
654 | ||
655 | while (!list_empty(&evt->events_to_get)) { | |
656 | ed = list_entry(evt->events_to_get.next, typeof(*ed), node); | |
657 | list_del(&ed->node); | |
658 | kfree(ed->data); | |
659 | kfree(ed); | |
660 | } | |
661 | ||
662 | while (!list_empty(&evt->events_to_see)) { | |
663 | ed = list_entry(evt->events_to_see.next, typeof(*ed), node); | |
664 | list_del(&ed->node); | |
665 | kfree(ed->data); | |
666 | kfree(ed); | |
667 | } | |
668 | ||
669 | kfree(evt); | |
670 | } | |
671 | ||
3b5dd52a JS |
672 | /** |
673 | * lpfc_bsg_event_ref - increments the kref for an event | |
674 | * @evt: Pointer to an event structure. | |
675 | **/ | |
f1c3b0fc | 676 | static inline void |
4cc0e56e | 677 | lpfc_bsg_event_ref(struct lpfc_bsg_event *evt) |
f1c3b0fc | 678 | { |
4cc0e56e | 679 | kref_get(&evt->kref); |
f1c3b0fc JS |
680 | } |
681 | ||
3b5dd52a JS |
682 | /** |
683 | * lpfc_bsg_event_unref - Uses kref_put to free an event structure | |
684 | * @evt: Pointer to an event structure. | |
685 | **/ | |
f1c3b0fc | 686 | static inline void |
4cc0e56e | 687 | lpfc_bsg_event_unref(struct lpfc_bsg_event *evt) |
f1c3b0fc | 688 | { |
4cc0e56e | 689 | kref_put(&evt->kref, lpfc_bsg_event_free); |
f1c3b0fc JS |
690 | } |
691 | ||
3b5dd52a JS |
692 | /** |
693 | * lpfc_bsg_event_new - allocate and initialize a event structure | |
694 | * @ev_mask: Mask of events. | |
695 | * @ev_reg_id: Event reg id. | |
696 | * @ev_req_id: Event request id. | |
697 | **/ | |
4cc0e56e JS |
698 | static struct lpfc_bsg_event * |
699 | lpfc_bsg_event_new(uint32_t ev_mask, int ev_reg_id, uint32_t ev_req_id) | |
700 | { | |
701 | struct lpfc_bsg_event *evt = kzalloc(sizeof(*evt), GFP_KERNEL); | |
f1c3b0fc | 702 | |
4cc0e56e JS |
703 | if (!evt) |
704 | return NULL; | |
705 | ||
706 | INIT_LIST_HEAD(&evt->events_to_get); | |
707 | INIT_LIST_HEAD(&evt->events_to_see); | |
708 | evt->type_mask = ev_mask; | |
709 | evt->req_id = ev_req_id; | |
710 | evt->reg_id = ev_reg_id; | |
711 | evt->wait_time_stamp = jiffies; | |
712 | init_waitqueue_head(&evt->wq); | |
713 | kref_init(&evt->kref); | |
714 | return evt; | |
715 | } | |
716 | ||
3b5dd52a JS |
717 | /** |
718 | * diag_cmd_data_free - Frees an lpfc dma buffer extension | |
719 | * @phba: Pointer to HBA context object. | |
720 | * @mlist: Pointer to an lpfc dma buffer extension. | |
721 | **/ | |
4cc0e56e | 722 | static int |
3b5dd52a | 723 | diag_cmd_data_free(struct lpfc_hba *phba, struct lpfc_dmabufext *mlist) |
4cc0e56e JS |
724 | { |
725 | struct lpfc_dmabufext *mlast; | |
726 | struct pci_dev *pcidev; | |
727 | struct list_head head, *curr, *next; | |
728 | ||
729 | if ((!mlist) || (!lpfc_is_link_up(phba) && | |
730 | (phba->link_flag & LS_LOOPBACK_MODE))) { | |
731 | return 0; | |
732 | } | |
733 | ||
734 | pcidev = phba->pcidev; | |
735 | list_add_tail(&head, &mlist->dma.list); | |
736 | ||
737 | list_for_each_safe(curr, next, &head) { | |
738 | mlast = list_entry(curr, struct lpfc_dmabufext , dma.list); | |
739 | if (mlast->dma.virt) | |
740 | dma_free_coherent(&pcidev->dev, | |
741 | mlast->size, | |
742 | mlast->dma.virt, | |
743 | mlast->dma.phys); | |
744 | kfree(mlast); | |
745 | } | |
746 | return 0; | |
747 | } | |
f1c3b0fc JS |
748 | |
749 | /** | |
750 | * lpfc_bsg_ct_unsol_event - process an unsolicited CT command | |
751 | * @phba: | |
752 | * @pring: | |
753 | * @piocbq: | |
754 | * | |
755 | * This function is called when an unsolicited CT command is received. It | |
4cc0e56e | 756 | * forwards the event to any processes registered to receive CT events. |
3b5dd52a | 757 | **/ |
4fede78f | 758 | int |
f1c3b0fc JS |
759 | lpfc_bsg_ct_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
760 | struct lpfc_iocbq *piocbq) | |
761 | { | |
762 | uint32_t evt_req_id = 0; | |
763 | uint32_t cmd; | |
764 | uint32_t len; | |
765 | struct lpfc_dmabuf *dmabuf = NULL; | |
4cc0e56e | 766 | struct lpfc_bsg_event *evt; |
f1c3b0fc JS |
767 | struct event_data *evt_dat = NULL; |
768 | struct lpfc_iocbq *iocbq; | |
769 | size_t offset = 0; | |
770 | struct list_head head; | |
771 | struct ulp_bde64 *bde; | |
772 | dma_addr_t dma_addr; | |
773 | int i; | |
774 | struct lpfc_dmabuf *bdeBuf1 = piocbq->context2; | |
775 | struct lpfc_dmabuf *bdeBuf2 = piocbq->context3; | |
776 | struct lpfc_hbq_entry *hbqe; | |
777 | struct lpfc_sli_ct_request *ct_req; | |
4cc0e56e | 778 | struct fc_bsg_job *job = NULL; |
4fede78f | 779 | unsigned long flags; |
4cc0e56e | 780 | int size = 0; |
f1c3b0fc JS |
781 | |
782 | INIT_LIST_HEAD(&head); | |
783 | list_add_tail(&head, &piocbq->list); | |
784 | ||
785 | if (piocbq->iocb.ulpBdeCount == 0 || | |
786 | piocbq->iocb.un.cont64[0].tus.f.bdeSize == 0) | |
787 | goto error_ct_unsol_exit; | |
788 | ||
4cc0e56e JS |
789 | if (phba->link_state == LPFC_HBA_ERROR || |
790 | (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE))) | |
791 | goto error_ct_unsol_exit; | |
792 | ||
f1c3b0fc JS |
793 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) |
794 | dmabuf = bdeBuf1; | |
795 | else { | |
796 | dma_addr = getPaddr(piocbq->iocb.un.cont64[0].addrHigh, | |
797 | piocbq->iocb.un.cont64[0].addrLow); | |
798 | dmabuf = lpfc_sli_ringpostbuf_get(phba, pring, dma_addr); | |
799 | } | |
4cc0e56e JS |
800 | if (dmabuf == NULL) |
801 | goto error_ct_unsol_exit; | |
f1c3b0fc JS |
802 | ct_req = (struct lpfc_sli_ct_request *)dmabuf->virt; |
803 | evt_req_id = ct_req->FsType; | |
804 | cmd = ct_req->CommandResponse.bits.CmdRsp; | |
805 | len = ct_req->CommandResponse.bits.Size; | |
806 | if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) | |
807 | lpfc_sli_ringpostbuf_put(phba, pring, dmabuf); | |
808 | ||
4fede78f | 809 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
f1c3b0fc | 810 | list_for_each_entry(evt, &phba->ct_ev_waiters, node) { |
4cc0e56e JS |
811 | if (!(evt->type_mask & FC_REG_CT_EVENT) || |
812 | evt->req_id != evt_req_id) | |
f1c3b0fc JS |
813 | continue; |
814 | ||
4cc0e56e JS |
815 | lpfc_bsg_event_ref(evt); |
816 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
f1c3b0fc | 817 | evt_dat = kzalloc(sizeof(*evt_dat), GFP_KERNEL); |
4cc0e56e JS |
818 | if (evt_dat == NULL) { |
819 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
820 | lpfc_bsg_event_unref(evt); | |
f1c3b0fc JS |
821 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
822 | "2614 Memory allocation failed for " | |
823 | "CT event\n"); | |
824 | break; | |
825 | } | |
826 | ||
f1c3b0fc JS |
827 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
828 | /* take accumulated byte count from the last iocbq */ | |
829 | iocbq = list_entry(head.prev, typeof(*iocbq), list); | |
830 | evt_dat->len = iocbq->iocb.unsli3.rcvsli3.acc_len; | |
831 | } else { | |
832 | list_for_each_entry(iocbq, &head, list) { | |
833 | for (i = 0; i < iocbq->iocb.ulpBdeCount; i++) | |
834 | evt_dat->len += | |
835 | iocbq->iocb.un.cont64[i].tus.f.bdeSize; | |
836 | } | |
837 | } | |
838 | ||
839 | evt_dat->data = kzalloc(evt_dat->len, GFP_KERNEL); | |
4cc0e56e | 840 | if (evt_dat->data == NULL) { |
f1c3b0fc JS |
841 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
842 | "2615 Memory allocation failed for " | |
843 | "CT event data, size %d\n", | |
844 | evt_dat->len); | |
845 | kfree(evt_dat); | |
4fede78f | 846 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
4cc0e56e | 847 | lpfc_bsg_event_unref(evt); |
4fede78f | 848 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
f1c3b0fc JS |
849 | goto error_ct_unsol_exit; |
850 | } | |
851 | ||
852 | list_for_each_entry(iocbq, &head, list) { | |
4cc0e56e | 853 | size = 0; |
f1c3b0fc JS |
854 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
855 | bdeBuf1 = iocbq->context2; | |
856 | bdeBuf2 = iocbq->context3; | |
857 | } | |
858 | for (i = 0; i < iocbq->iocb.ulpBdeCount; i++) { | |
f1c3b0fc JS |
859 | if (phba->sli3_options & |
860 | LPFC_SLI3_HBQ_ENABLED) { | |
861 | if (i == 0) { | |
862 | hbqe = (struct lpfc_hbq_entry *) | |
863 | &iocbq->iocb.un.ulpWord[0]; | |
864 | size = hbqe->bde.tus.f.bdeSize; | |
865 | dmabuf = bdeBuf1; | |
866 | } else if (i == 1) { | |
867 | hbqe = (struct lpfc_hbq_entry *) | |
868 | &iocbq->iocb.unsli3. | |
869 | sli3Words[4]; | |
870 | size = hbqe->bde.tus.f.bdeSize; | |
871 | dmabuf = bdeBuf2; | |
872 | } | |
873 | if ((offset + size) > evt_dat->len) | |
874 | size = evt_dat->len - offset; | |
875 | } else { | |
876 | size = iocbq->iocb.un.cont64[i]. | |
877 | tus.f.bdeSize; | |
878 | bde = &iocbq->iocb.un.cont64[i]; | |
879 | dma_addr = getPaddr(bde->addrHigh, | |
880 | bde->addrLow); | |
881 | dmabuf = lpfc_sli_ringpostbuf_get(phba, | |
882 | pring, dma_addr); | |
883 | } | |
884 | if (!dmabuf) { | |
885 | lpfc_printf_log(phba, KERN_ERR, | |
886 | LOG_LIBDFC, "2616 No dmabuf " | |
887 | "found for iocbq 0x%p\n", | |
888 | iocbq); | |
889 | kfree(evt_dat->data); | |
890 | kfree(evt_dat); | |
4fede78f JS |
891 | spin_lock_irqsave(&phba->ct_ev_lock, |
892 | flags); | |
4cc0e56e | 893 | lpfc_bsg_event_unref(evt); |
4fede78f JS |
894 | spin_unlock_irqrestore( |
895 | &phba->ct_ev_lock, flags); | |
f1c3b0fc JS |
896 | goto error_ct_unsol_exit; |
897 | } | |
898 | memcpy((char *)(evt_dat->data) + offset, | |
899 | dmabuf->virt, size); | |
900 | offset += size; | |
901 | if (evt_req_id != SLI_CT_ELX_LOOPBACK && | |
902 | !(phba->sli3_options & | |
903 | LPFC_SLI3_HBQ_ENABLED)) { | |
904 | lpfc_sli_ringpostbuf_put(phba, pring, | |
905 | dmabuf); | |
906 | } else { | |
907 | switch (cmd) { | |
4cc0e56e | 908 | case ELX_LOOPBACK_DATA: |
3b5dd52a | 909 | diag_cmd_data_free(phba, |
4cc0e56e JS |
910 | (struct lpfc_dmabufext *) |
911 | dmabuf); | |
912 | break; | |
f1c3b0fc | 913 | case ELX_LOOPBACK_XRI_SETUP: |
4cc0e56e JS |
914 | if ((phba->sli_rev == |
915 | LPFC_SLI_REV2) || | |
916 | (phba->sli3_options & | |
917 | LPFC_SLI3_HBQ_ENABLED | |
918 | )) { | |
919 | lpfc_in_buf_free(phba, | |
920 | dmabuf); | |
921 | } else { | |
f1c3b0fc JS |
922 | lpfc_post_buffer(phba, |
923 | pring, | |
924 | 1); | |
4cc0e56e | 925 | } |
f1c3b0fc JS |
926 | break; |
927 | default: | |
928 | if (!(phba->sli3_options & | |
929 | LPFC_SLI3_HBQ_ENABLED)) | |
930 | lpfc_post_buffer(phba, | |
931 | pring, | |
932 | 1); | |
933 | break; | |
934 | } | |
935 | } | |
936 | } | |
937 | } | |
938 | ||
4fede78f | 939 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
f1c3b0fc JS |
940 | if (phba->sli_rev == LPFC_SLI_REV4) { |
941 | evt_dat->immed_dat = phba->ctx_idx; | |
942 | phba->ctx_idx = (phba->ctx_idx + 1) % 64; | |
589a52d6 JS |
943 | /* Provide warning for over-run of the ct_ctx array */ |
944 | if (phba->ct_ctx[evt_dat->immed_dat].flags & | |
945 | UNSOL_VALID) | |
946 | lpfc_printf_log(phba, KERN_WARNING, LOG_ELS, | |
947 | "2717 CT context array entry " | |
948 | "[%d] over-run: oxid:x%x, " | |
949 | "sid:x%x\n", phba->ctx_idx, | |
950 | phba->ct_ctx[ | |
951 | evt_dat->immed_dat].oxid, | |
952 | phba->ct_ctx[ | |
953 | evt_dat->immed_dat].SID); | |
f1c3b0fc JS |
954 | phba->ct_ctx[evt_dat->immed_dat].oxid = |
955 | piocbq->iocb.ulpContext; | |
956 | phba->ct_ctx[evt_dat->immed_dat].SID = | |
957 | piocbq->iocb.un.rcvels.remoteID; | |
589a52d6 | 958 | phba->ct_ctx[evt_dat->immed_dat].flags = UNSOL_VALID; |
f1c3b0fc JS |
959 | } else |
960 | evt_dat->immed_dat = piocbq->iocb.ulpContext; | |
961 | ||
962 | evt_dat->type = FC_REG_CT_EVENT; | |
963 | list_add(&evt_dat->node, &evt->events_to_see); | |
4cc0e56e JS |
964 | if (evt_req_id == SLI_CT_ELX_LOOPBACK) { |
965 | wake_up_interruptible(&evt->wq); | |
966 | lpfc_bsg_event_unref(evt); | |
f1c3b0fc | 967 | break; |
4cc0e56e JS |
968 | } |
969 | ||
970 | list_move(evt->events_to_see.prev, &evt->events_to_get); | |
971 | lpfc_bsg_event_unref(evt); | |
972 | ||
973 | job = evt->set_job; | |
974 | evt->set_job = NULL; | |
975 | if (job) { | |
976 | job->reply->reply_payload_rcv_len = size; | |
977 | /* make error code available to userspace */ | |
978 | job->reply->result = 0; | |
979 | job->dd_data = NULL; | |
980 | /* complete the job back to userspace */ | |
981 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
982 | job->job_done(job); | |
983 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
984 | } | |
f1c3b0fc | 985 | } |
4fede78f | 986 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
f1c3b0fc JS |
987 | |
988 | error_ct_unsol_exit: | |
989 | if (!list_empty(&head)) | |
990 | list_del(&head); | |
4cc0e56e JS |
991 | if (evt_req_id == SLI_CT_ELX_LOOPBACK) |
992 | return 0; | |
4fede78f | 993 | return 1; |
f1c3b0fc JS |
994 | } |
995 | ||
996 | /** | |
4cc0e56e | 997 | * lpfc_bsg_hba_set_event - process a SET_EVENT bsg vendor command |
f1c3b0fc | 998 | * @job: SET_EVENT fc_bsg_job |
3b5dd52a | 999 | **/ |
f1c3b0fc | 1000 | static int |
4cc0e56e | 1001 | lpfc_bsg_hba_set_event(struct fc_bsg_job *job) |
f1c3b0fc JS |
1002 | { |
1003 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
1004 | struct lpfc_hba *phba = vport->phba; | |
1005 | struct set_ct_event *event_req; | |
4cc0e56e | 1006 | struct lpfc_bsg_event *evt; |
f1c3b0fc | 1007 | int rc = 0; |
4cc0e56e JS |
1008 | struct bsg_job_data *dd_data = NULL; |
1009 | uint32_t ev_mask; | |
1010 | unsigned long flags; | |
f1c3b0fc JS |
1011 | |
1012 | if (job->request_len < | |
1013 | sizeof(struct fc_bsg_request) + sizeof(struct set_ct_event)) { | |
1014 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1015 | "2612 Received SET_CT_EVENT below minimum " | |
1016 | "size\n"); | |
4cc0e56e JS |
1017 | rc = -EINVAL; |
1018 | goto job_error; | |
1019 | } | |
1020 | ||
1021 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); | |
1022 | if (dd_data == NULL) { | |
1023 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1024 | "2734 Failed allocation of dd_data\n"); | |
1025 | rc = -ENOMEM; | |
1026 | goto job_error; | |
f1c3b0fc JS |
1027 | } |
1028 | ||
1029 | event_req = (struct set_ct_event *) | |
1030 | job->request->rqst_data.h_vendor.vendor_cmd; | |
4cc0e56e JS |
1031 | ev_mask = ((uint32_t)(unsigned long)event_req->type_mask & |
1032 | FC_REG_EVENT_MASK); | |
4fede78f | 1033 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
f1c3b0fc JS |
1034 | list_for_each_entry(evt, &phba->ct_ev_waiters, node) { |
1035 | if (evt->reg_id == event_req->ev_reg_id) { | |
4cc0e56e | 1036 | lpfc_bsg_event_ref(evt); |
f1c3b0fc JS |
1037 | evt->wait_time_stamp = jiffies; |
1038 | break; | |
1039 | } | |
1040 | } | |
4fede78f | 1041 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
f1c3b0fc JS |
1042 | |
1043 | if (&evt->node == &phba->ct_ev_waiters) { | |
1044 | /* no event waiting struct yet - first call */ | |
4cc0e56e | 1045 | evt = lpfc_bsg_event_new(ev_mask, event_req->ev_reg_id, |
f1c3b0fc JS |
1046 | event_req->ev_req_id); |
1047 | if (!evt) { | |
1048 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1049 | "2617 Failed allocation of event " | |
1050 | "waiter\n"); | |
4cc0e56e JS |
1051 | rc = -ENOMEM; |
1052 | goto job_error; | |
f1c3b0fc JS |
1053 | } |
1054 | ||
4fede78f | 1055 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
f1c3b0fc | 1056 | list_add(&evt->node, &phba->ct_ev_waiters); |
4cc0e56e JS |
1057 | lpfc_bsg_event_ref(evt); |
1058 | evt->wait_time_stamp = jiffies; | |
4fede78f | 1059 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
f1c3b0fc JS |
1060 | } |
1061 | ||
4fede78f | 1062 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
4cc0e56e JS |
1063 | evt->waiting = 1; |
1064 | dd_data->type = TYPE_EVT; | |
1065 | dd_data->context_un.evt = evt; | |
1066 | evt->set_job = job; /* for unsolicited command */ | |
1067 | job->dd_data = dd_data; /* for fc transport timeout callback*/ | |
4fede78f | 1068 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
4cc0e56e | 1069 | return 0; /* call job done later */ |
f1c3b0fc | 1070 | |
4cc0e56e JS |
1071 | job_error: |
1072 | if (dd_data != NULL) | |
1073 | kfree(dd_data); | |
f1c3b0fc | 1074 | |
4cc0e56e JS |
1075 | job->dd_data = NULL; |
1076 | return rc; | |
f1c3b0fc JS |
1077 | } |
1078 | ||
1079 | /** | |
4cc0e56e | 1080 | * lpfc_bsg_hba_get_event - process a GET_EVENT bsg vendor command |
f1c3b0fc | 1081 | * @job: GET_EVENT fc_bsg_job |
3b5dd52a | 1082 | **/ |
f1c3b0fc | 1083 | static int |
4cc0e56e | 1084 | lpfc_bsg_hba_get_event(struct fc_bsg_job *job) |
f1c3b0fc JS |
1085 | { |
1086 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
1087 | struct lpfc_hba *phba = vport->phba; | |
1088 | struct get_ct_event *event_req; | |
1089 | struct get_ct_event_reply *event_reply; | |
4cc0e56e | 1090 | struct lpfc_bsg_event *evt; |
f1c3b0fc | 1091 | struct event_data *evt_dat = NULL; |
4fede78f | 1092 | unsigned long flags; |
4cc0e56e | 1093 | uint32_t rc = 0; |
f1c3b0fc JS |
1094 | |
1095 | if (job->request_len < | |
1096 | sizeof(struct fc_bsg_request) + sizeof(struct get_ct_event)) { | |
1097 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1098 | "2613 Received GET_CT_EVENT request below " | |
1099 | "minimum size\n"); | |
4cc0e56e JS |
1100 | rc = -EINVAL; |
1101 | goto job_error; | |
f1c3b0fc JS |
1102 | } |
1103 | ||
1104 | event_req = (struct get_ct_event *) | |
1105 | job->request->rqst_data.h_vendor.vendor_cmd; | |
1106 | ||
1107 | event_reply = (struct get_ct_event_reply *) | |
1108 | job->reply->reply_data.vendor_reply.vendor_rsp; | |
4fede78f | 1109 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
f1c3b0fc JS |
1110 | list_for_each_entry(evt, &phba->ct_ev_waiters, node) { |
1111 | if (evt->reg_id == event_req->ev_reg_id) { | |
1112 | if (list_empty(&evt->events_to_get)) | |
1113 | break; | |
4cc0e56e | 1114 | lpfc_bsg_event_ref(evt); |
f1c3b0fc JS |
1115 | evt->wait_time_stamp = jiffies; |
1116 | evt_dat = list_entry(evt->events_to_get.prev, | |
1117 | struct event_data, node); | |
1118 | list_del(&evt_dat->node); | |
1119 | break; | |
1120 | } | |
1121 | } | |
4fede78f | 1122 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
f1c3b0fc | 1123 | |
4cc0e56e JS |
1124 | /* The app may continue to ask for event data until it gets |
1125 | * an error indicating that there isn't anymore | |
1126 | */ | |
1127 | if (evt_dat == NULL) { | |
f1c3b0fc JS |
1128 | job->reply->reply_payload_rcv_len = 0; |
1129 | rc = -ENOENT; | |
4cc0e56e | 1130 | goto job_error; |
f1c3b0fc JS |
1131 | } |
1132 | ||
4cc0e56e JS |
1133 | if (evt_dat->len > job->request_payload.payload_len) { |
1134 | evt_dat->len = job->request_payload.payload_len; | |
1135 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1136 | "2618 Truncated event data at %d " | |
1137 | "bytes\n", | |
1138 | job->request_payload.payload_len); | |
f1c3b0fc JS |
1139 | } |
1140 | ||
4cc0e56e | 1141 | event_reply->type = evt_dat->type; |
f1c3b0fc | 1142 | event_reply->immed_data = evt_dat->immed_dat; |
f1c3b0fc JS |
1143 | if (evt_dat->len > 0) |
1144 | job->reply->reply_payload_rcv_len = | |
4cc0e56e JS |
1145 | sg_copy_from_buffer(job->request_payload.sg_list, |
1146 | job->request_payload.sg_cnt, | |
f1c3b0fc JS |
1147 | evt_dat->data, evt_dat->len); |
1148 | else | |
1149 | job->reply->reply_payload_rcv_len = 0; | |
f1c3b0fc | 1150 | |
4cc0e56e | 1151 | if (evt_dat) { |
f1c3b0fc | 1152 | kfree(evt_dat->data); |
4cc0e56e JS |
1153 | kfree(evt_dat); |
1154 | } | |
1155 | ||
4fede78f | 1156 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
4cc0e56e | 1157 | lpfc_bsg_event_unref(evt); |
4fede78f | 1158 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
4cc0e56e JS |
1159 | job->dd_data = NULL; |
1160 | job->reply->result = 0; | |
f1c3b0fc | 1161 | job->job_done(job); |
4cc0e56e | 1162 | return 0; |
f1c3b0fc | 1163 | |
4cc0e56e JS |
1164 | job_error: |
1165 | job->dd_data = NULL; | |
1166 | job->reply->result = rc; | |
f1c3b0fc JS |
1167 | return rc; |
1168 | } | |
1169 | ||
1170 | /** | |
3b5dd52a JS |
1171 | * lpfc_issue_ct_rsp_cmp - lpfc_issue_ct_rsp's completion handler |
1172 | * @phba: Pointer to HBA context object. | |
1173 | * @cmdiocbq: Pointer to command iocb. | |
1174 | * @rspiocbq: Pointer to response iocb. | |
1175 | * | |
1176 | * This function is the completion handler for iocbs issued using | |
1177 | * lpfc_issue_ct_rsp_cmp function. This function is called by the | |
1178 | * ring event handler function without any lock held. This function | |
1179 | * can be called from both worker thread context and interrupt | |
1180 | * context. This function also can be called from other thread which | |
1181 | * cleans up the SLI layer objects. | |
1182 | * This function copy the contents of the response iocb to the | |
1183 | * response iocb memory object provided by the caller of | |
1184 | * lpfc_sli_issue_iocb_wait and then wakes up the thread which | |
1185 | * sleeps for the iocb completion. | |
1186 | **/ | |
1187 | static void | |
1188 | lpfc_issue_ct_rsp_cmp(struct lpfc_hba *phba, | |
1189 | struct lpfc_iocbq *cmdiocbq, | |
1190 | struct lpfc_iocbq *rspiocbq) | |
1191 | { | |
1192 | struct bsg_job_data *dd_data; | |
1193 | struct fc_bsg_job *job; | |
1194 | IOCB_t *rsp; | |
1195 | struct lpfc_dmabuf *bmp; | |
1196 | struct lpfc_nodelist *ndlp; | |
1197 | unsigned long flags; | |
1198 | int rc = 0; | |
1199 | ||
1200 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
be858b65 | 1201 | dd_data = cmdiocbq->context2; |
3b5dd52a JS |
1202 | /* normal completion and timeout crossed paths, already done */ |
1203 | if (!dd_data) { | |
67221a42 | 1204 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
3b5dd52a JS |
1205 | return; |
1206 | } | |
1207 | ||
1208 | job = dd_data->context_un.iocb.set_job; | |
1209 | bmp = dd_data->context_un.iocb.bmp; | |
1210 | rsp = &rspiocbq->iocb; | |
1211 | ndlp = dd_data->context_un.iocb.ndlp; | |
1212 | ||
1213 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, | |
1214 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
1215 | ||
1216 | if (rsp->ulpStatus) { | |
1217 | if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) { | |
1218 | switch (rsp->un.ulpWord[4] & 0xff) { | |
1219 | case IOERR_SEQUENCE_TIMEOUT: | |
1220 | rc = -ETIMEDOUT; | |
1221 | break; | |
1222 | case IOERR_INVALID_RPI: | |
1223 | rc = -EFAULT; | |
1224 | break; | |
1225 | default: | |
1226 | rc = -EACCES; | |
1227 | break; | |
1228 | } | |
1229 | } else | |
1230 | rc = -EACCES; | |
1231 | } else | |
1232 | job->reply->reply_payload_rcv_len = | |
1233 | rsp->un.genreq64.bdl.bdeSize; | |
1234 | ||
1235 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); | |
1236 | lpfc_sli_release_iocbq(phba, cmdiocbq); | |
1237 | lpfc_nlp_put(ndlp); | |
1238 | kfree(bmp); | |
1239 | kfree(dd_data); | |
1240 | /* make error code available to userspace */ | |
1241 | job->reply->result = rc; | |
1242 | job->dd_data = NULL; | |
1243 | /* complete the job back to userspace */ | |
1244 | job->job_done(job); | |
1245 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
1246 | return; | |
1247 | } | |
1248 | ||
1249 | /** | |
1250 | * lpfc_issue_ct_rsp - issue a ct response | |
1251 | * @phba: Pointer to HBA context object. | |
1252 | * @job: Pointer to the job object. | |
1253 | * @tag: tag index value into the ports context exchange array. | |
1254 | * @bmp: Pointer to a dma buffer descriptor. | |
1255 | * @num_entry: Number of enties in the bde. | |
1256 | **/ | |
f1c3b0fc | 1257 | static int |
3b5dd52a JS |
1258 | lpfc_issue_ct_rsp(struct lpfc_hba *phba, struct fc_bsg_job *job, uint32_t tag, |
1259 | struct lpfc_dmabuf *bmp, int num_entry) | |
f1c3b0fc | 1260 | { |
3b5dd52a JS |
1261 | IOCB_t *icmd; |
1262 | struct lpfc_iocbq *ctiocb = NULL; | |
1263 | int rc = 0; | |
1264 | struct lpfc_nodelist *ndlp = NULL; | |
1265 | struct bsg_job_data *dd_data; | |
1266 | uint32_t creg_val; | |
f1c3b0fc | 1267 | |
3b5dd52a JS |
1268 | /* allocate our bsg tracking structure */ |
1269 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); | |
1270 | if (!dd_data) { | |
1271 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1272 | "2736 Failed allocation of dd_data\n"); | |
1273 | rc = -ENOMEM; | |
1274 | goto no_dd_data; | |
1275 | } | |
f1c3b0fc | 1276 | |
3b5dd52a JS |
1277 | /* Allocate buffer for command iocb */ |
1278 | ctiocb = lpfc_sli_get_iocbq(phba); | |
1279 | if (!ctiocb) { | |
d439d286 | 1280 | rc = -ENOMEM; |
3b5dd52a JS |
1281 | goto no_ctiocb; |
1282 | } | |
1283 | ||
1284 | icmd = &ctiocb->iocb; | |
1285 | icmd->un.xseq64.bdl.ulpIoTag32 = 0; | |
1286 | icmd->un.xseq64.bdl.addrHigh = putPaddrHigh(bmp->phys); | |
1287 | icmd->un.xseq64.bdl.addrLow = putPaddrLow(bmp->phys); | |
1288 | icmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; | |
1289 | icmd->un.xseq64.bdl.bdeSize = (num_entry * sizeof(struct ulp_bde64)); | |
1290 | icmd->un.xseq64.w5.hcsw.Fctl = (LS | LA); | |
1291 | icmd->un.xseq64.w5.hcsw.Dfctl = 0; | |
1292 | icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_SOL_CTL; | |
1293 | icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT; | |
1294 | ||
1295 | /* Fill in rest of iocb */ | |
1296 | icmd->ulpCommand = CMD_XMIT_SEQUENCE64_CX; | |
1297 | icmd->ulpBdeCount = 1; | |
1298 | icmd->ulpLe = 1; | |
1299 | icmd->ulpClass = CLASS3; | |
1300 | if (phba->sli_rev == LPFC_SLI_REV4) { | |
1301 | /* Do not issue unsol response if oxid not marked as valid */ | |
1302 | if (!(phba->ct_ctx[tag].flags & UNSOL_VALID)) { | |
1303 | rc = IOCB_ERROR; | |
1304 | goto issue_ct_rsp_exit; | |
1305 | } | |
1306 | icmd->ulpContext = phba->ct_ctx[tag].oxid; | |
1307 | ndlp = lpfc_findnode_did(phba->pport, phba->ct_ctx[tag].SID); | |
1308 | if (!ndlp) { | |
1309 | lpfc_printf_log(phba, KERN_WARNING, LOG_ELS, | |
1310 | "2721 ndlp null for oxid %x SID %x\n", | |
1311 | icmd->ulpContext, | |
1312 | phba->ct_ctx[tag].SID); | |
1313 | rc = IOCB_ERROR; | |
1314 | goto issue_ct_rsp_exit; | |
1315 | } | |
589a52d6 JS |
1316 | |
1317 | /* Check if the ndlp is active */ | |
1318 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { | |
1319 | rc = -IOCB_ERROR; | |
1320 | goto issue_ct_rsp_exit; | |
1321 | } | |
1322 | ||
1323 | /* get a refernece count so the ndlp doesn't go away while | |
1324 | * we respond | |
1325 | */ | |
1326 | if (!lpfc_nlp_get(ndlp)) { | |
1327 | rc = -IOCB_ERROR; | |
1328 | goto issue_ct_rsp_exit; | |
1329 | } | |
1330 | ||
3b5dd52a JS |
1331 | icmd->un.ulpWord[3] = ndlp->nlp_rpi; |
1332 | /* The exchange is done, mark the entry as invalid */ | |
1333 | phba->ct_ctx[tag].flags &= ~UNSOL_VALID; | |
1334 | } else | |
1335 | icmd->ulpContext = (ushort) tag; | |
1336 | ||
1337 | icmd->ulpTimeout = phba->fc_ratov * 2; | |
1338 | ||
1339 | /* Xmit CT response on exchange <xid> */ | |
1340 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS, | |
1341 | "2722 Xmit CT response on exchange x%x Data: x%x x%x\n", | |
1342 | icmd->ulpContext, icmd->ulpIoTag, phba->link_state); | |
1343 | ||
1344 | ctiocb->iocb_cmpl = NULL; | |
1345 | ctiocb->iocb_flag |= LPFC_IO_LIBDFC; | |
1346 | ctiocb->vport = phba->pport; | |
1347 | ctiocb->context3 = bmp; | |
1348 | ||
1349 | ctiocb->iocb_cmpl = lpfc_issue_ct_rsp_cmp; | |
be858b65 JS |
1350 | ctiocb->context2 = dd_data; |
1351 | ctiocb->context1 = ndlp; | |
3b5dd52a JS |
1352 | dd_data->type = TYPE_IOCB; |
1353 | dd_data->context_un.iocb.cmdiocbq = ctiocb; | |
1354 | dd_data->context_un.iocb.rspiocbq = NULL; | |
1355 | dd_data->context_un.iocb.set_job = job; | |
1356 | dd_data->context_un.iocb.bmp = bmp; | |
1357 | dd_data->context_un.iocb.ndlp = ndlp; | |
1358 | ||
1359 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { | |
1360 | creg_val = readl(phba->HCregaddr); | |
1361 | creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); | |
1362 | writel(creg_val, phba->HCregaddr); | |
1363 | readl(phba->HCregaddr); /* flush */ | |
f1c3b0fc | 1364 | } |
4cc0e56e | 1365 | |
3b5dd52a JS |
1366 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0); |
1367 | ||
1368 | if (rc == IOCB_SUCCESS) | |
1369 | return 0; /* done for now */ | |
1370 | ||
1371 | issue_ct_rsp_exit: | |
1372 | lpfc_sli_release_iocbq(phba, ctiocb); | |
1373 | no_ctiocb: | |
1374 | kfree(dd_data); | |
1375 | no_dd_data: | |
4cc0e56e | 1376 | return rc; |
f1c3b0fc JS |
1377 | } |
1378 | ||
1379 | /** | |
3b5dd52a JS |
1380 | * lpfc_bsg_send_mgmt_rsp - process a SEND_MGMT_RESP bsg vendor command |
1381 | * @job: SEND_MGMT_RESP fc_bsg_job | |
1382 | **/ | |
1383 | static int | |
1384 | lpfc_bsg_send_mgmt_rsp(struct fc_bsg_job *job) | |
f1c3b0fc | 1385 | { |
3b5dd52a JS |
1386 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; |
1387 | struct lpfc_hba *phba = vport->phba; | |
1388 | struct send_mgmt_resp *mgmt_resp = (struct send_mgmt_resp *) | |
1389 | job->request->rqst_data.h_vendor.vendor_cmd; | |
1390 | struct ulp_bde64 *bpl; | |
1391 | struct lpfc_dmabuf *bmp = NULL; | |
1392 | struct scatterlist *sgel = NULL; | |
1393 | int request_nseg; | |
1394 | int numbde; | |
1395 | dma_addr_t busaddr; | |
1396 | uint32_t tag = mgmt_resp->tag; | |
1397 | unsigned long reqbfrcnt = | |
1398 | (unsigned long)job->request_payload.payload_len; | |
1399 | int rc = 0; | |
f1c3b0fc | 1400 | |
3b5dd52a JS |
1401 | /* in case no data is transferred */ |
1402 | job->reply->reply_payload_rcv_len = 0; | |
1403 | ||
1404 | if (!reqbfrcnt || (reqbfrcnt > (80 * BUF_SZ_4K))) { | |
1405 | rc = -ERANGE; | |
1406 | goto send_mgmt_rsp_exit; | |
1407 | } | |
1408 | ||
1409 | bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
1410 | if (!bmp) { | |
1411 | rc = -ENOMEM; | |
1412 | goto send_mgmt_rsp_exit; | |
1413 | } | |
1414 | ||
1415 | bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys); | |
1416 | if (!bmp->virt) { | |
1417 | rc = -ENOMEM; | |
1418 | goto send_mgmt_rsp_free_bmp; | |
1419 | } | |
1420 | ||
1421 | INIT_LIST_HEAD(&bmp->list); | |
1422 | bpl = (struct ulp_bde64 *) bmp->virt; | |
1423 | request_nseg = pci_map_sg(phba->pcidev, job->request_payload.sg_list, | |
1424 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
1425 | for_each_sg(job->request_payload.sg_list, sgel, request_nseg, numbde) { | |
1426 | busaddr = sg_dma_address(sgel); | |
1427 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
1428 | bpl->tus.f.bdeSize = sg_dma_len(sgel); | |
1429 | bpl->tus.w = cpu_to_le32(bpl->tus.w); | |
1430 | bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr)); | |
1431 | bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr)); | |
1432 | bpl++; | |
f1c3b0fc JS |
1433 | } |
1434 | ||
3b5dd52a JS |
1435 | rc = lpfc_issue_ct_rsp(phba, job, tag, bmp, request_nseg); |
1436 | ||
1437 | if (rc == IOCB_SUCCESS) | |
1438 | return 0; /* done for now */ | |
1439 | ||
1440 | /* TBD need to handle a timeout */ | |
1441 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, | |
1442 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
1443 | rc = -EACCES; | |
1444 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); | |
1445 | ||
1446 | send_mgmt_rsp_free_bmp: | |
1447 | kfree(bmp); | |
1448 | send_mgmt_rsp_exit: | |
1449 | /* make error code available to userspace */ | |
1450 | job->reply->result = rc; | |
1451 | job->dd_data = NULL; | |
f1c3b0fc JS |
1452 | return rc; |
1453 | } | |
1454 | ||
1455 | /** | |
3b5dd52a JS |
1456 | * lpfc_bsg_diag_mode - process a LPFC_BSG_VENDOR_DIAG_MODE bsg vendor command |
1457 | * @job: LPFC_BSG_VENDOR_DIAG_MODE | |
f1c3b0fc | 1458 | * |
3b5dd52a JS |
1459 | * This function is responsible for placing a port into diagnostic loopback |
1460 | * mode in order to perform a diagnostic loopback test. | |
1461 | * All new scsi requests are blocked, a small delay is used to allow the | |
1462 | * scsi requests to complete then the link is brought down. If the link is | |
1463 | * is placed in loopback mode then scsi requests are again allowed | |
1464 | * so the scsi mid-layer doesn't give up on the port. | |
1465 | * All of this is done in-line. | |
f1c3b0fc | 1466 | */ |
3b5dd52a JS |
1467 | static int |
1468 | lpfc_bsg_diag_mode(struct fc_bsg_job *job) | |
f1c3b0fc | 1469 | { |
3b5dd52a | 1470 | struct Scsi_Host *shost = job->shost; |
f1c3b0fc JS |
1471 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; |
1472 | struct lpfc_hba *phba = vport->phba; | |
3b5dd52a JS |
1473 | struct diag_mode_set *loopback_mode; |
1474 | struct lpfc_sli *psli = &phba->sli; | |
1475 | struct lpfc_sli_ring *pring = &psli->ring[LPFC_FCP_RING]; | |
1476 | uint32_t link_flags; | |
1477 | uint32_t timeout; | |
1478 | struct lpfc_vport **vports; | |
1479 | LPFC_MBOXQ_t *pmboxq; | |
1480 | int mbxstatus; | |
1481 | int i = 0; | |
1482 | int rc = 0; | |
f1c3b0fc | 1483 | |
3b5dd52a JS |
1484 | /* no data to return just the return code */ |
1485 | job->reply->reply_payload_rcv_len = 0; | |
1486 | ||
1487 | if (job->request_len < | |
1488 | sizeof(struct fc_bsg_request) + sizeof(struct diag_mode_set)) { | |
1489 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
1490 | "2738 Received DIAG MODE request below minimum " | |
1491 | "size\n"); | |
1492 | rc = -EINVAL; | |
1493 | goto job_error; | |
1494 | } | |
1495 | ||
1496 | loopback_mode = (struct diag_mode_set *) | |
1497 | job->request->rqst_data.h_vendor.vendor_cmd; | |
1498 | link_flags = loopback_mode->type; | |
515e0aa2 | 1499 | timeout = loopback_mode->timeout * 100; |
3b5dd52a JS |
1500 | |
1501 | if ((phba->link_state == LPFC_HBA_ERROR) || | |
1502 | (psli->sli_flag & LPFC_BLOCK_MGMT_IO) || | |
1503 | (!(psli->sli_flag & LPFC_SLI_ACTIVE))) { | |
1504 | rc = -EACCES; | |
1505 | goto job_error; | |
1506 | } | |
1507 | ||
1508 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
1509 | if (!pmboxq) { | |
1510 | rc = -ENOMEM; | |
1511 | goto job_error; | |
1512 | } | |
1513 | ||
1514 | vports = lpfc_create_vport_work_array(phba); | |
1515 | if (vports) { | |
1516 | for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) { | |
1517 | shost = lpfc_shost_from_vport(vports[i]); | |
1518 | scsi_block_requests(shost); | |
1519 | } | |
1520 | ||
1521 | lpfc_destroy_vport_work_array(phba, vports); | |
1522 | } else { | |
1523 | shost = lpfc_shost_from_vport(phba->pport); | |
1524 | scsi_block_requests(shost); | |
1525 | } | |
1526 | ||
1527 | while (pring->txcmplq_cnt) { | |
1528 | if (i++ > 500) /* wait up to 5 seconds */ | |
1529 | break; | |
1530 | ||
1531 | msleep(10); | |
1532 | } | |
1533 | ||
1534 | memset((void *)pmboxq, 0, sizeof(LPFC_MBOXQ_t)); | |
1535 | pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK; | |
1536 | pmboxq->u.mb.mbxOwner = OWN_HOST; | |
1537 | ||
1538 | mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO); | |
1539 | ||
1540 | if ((mbxstatus == MBX_SUCCESS) && (pmboxq->u.mb.mbxStatus == 0)) { | |
1541 | /* wait for link down before proceeding */ | |
1542 | i = 0; | |
1543 | while (phba->link_state != LPFC_LINK_DOWN) { | |
1544 | if (i++ > timeout) { | |
1545 | rc = -ETIMEDOUT; | |
1546 | goto loopback_mode_exit; | |
1547 | } | |
1548 | ||
1549 | msleep(10); | |
1550 | } | |
1551 | ||
1552 | memset((void *)pmboxq, 0, sizeof(LPFC_MBOXQ_t)); | |
1553 | if (link_flags == INTERNAL_LOOP_BACK) | |
1554 | pmboxq->u.mb.un.varInitLnk.link_flags = FLAGS_LOCAL_LB; | |
1555 | else | |
1556 | pmboxq->u.mb.un.varInitLnk.link_flags = | |
1557 | FLAGS_TOPOLOGY_MODE_LOOP; | |
1558 | ||
1559 | pmboxq->u.mb.mbxCommand = MBX_INIT_LINK; | |
1560 | pmboxq->u.mb.mbxOwner = OWN_HOST; | |
1561 | ||
1562 | mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, | |
1563 | LPFC_MBOX_TMO); | |
1564 | ||
1565 | if ((mbxstatus != MBX_SUCCESS) || (pmboxq->u.mb.mbxStatus)) | |
1566 | rc = -ENODEV; | |
1567 | else { | |
1568 | phba->link_flag |= LS_LOOPBACK_MODE; | |
1569 | /* wait for the link attention interrupt */ | |
1570 | msleep(100); | |
1571 | ||
1572 | i = 0; | |
1573 | while (phba->link_state != LPFC_HBA_READY) { | |
1574 | if (i++ > timeout) { | |
1575 | rc = -ETIMEDOUT; | |
1576 | break; | |
1577 | } | |
1578 | ||
1579 | msleep(10); | |
1580 | } | |
1581 | } | |
1582 | ||
1583 | } else | |
1584 | rc = -ENODEV; | |
1585 | ||
1586 | loopback_mode_exit: | |
1587 | vports = lpfc_create_vport_work_array(phba); | |
1588 | if (vports) { | |
1589 | for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) { | |
1590 | shost = lpfc_shost_from_vport(vports[i]); | |
1591 | scsi_unblock_requests(shost); | |
1592 | } | |
1593 | lpfc_destroy_vport_work_array(phba, vports); | |
1594 | } else { | |
1595 | shost = lpfc_shost_from_vport(phba->pport); | |
1596 | scsi_unblock_requests(shost); | |
1597 | } | |
1598 | ||
1599 | /* | |
1600 | * Let SLI layer release mboxq if mbox command completed after timeout. | |
1601 | */ | |
1602 | if (mbxstatus != MBX_TIMEOUT) | |
1603 | mempool_free(pmboxq, phba->mbox_mem_pool); | |
1604 | ||
1605 | job_error: | |
1606 | /* make error code available to userspace */ | |
1607 | job->reply->result = rc; | |
1608 | /* complete the job back to userspace if no error */ | |
1609 | if (rc == 0) | |
1610 | job->job_done(job); | |
1611 | return rc; | |
1612 | } | |
1613 | ||
1614 | /** | |
1615 | * lpfcdiag_loop_self_reg - obtains a remote port login id | |
1616 | * @phba: Pointer to HBA context object | |
1617 | * @rpi: Pointer to a remote port login id | |
1618 | * | |
1619 | * This function obtains a remote port login id so the diag loopback test | |
1620 | * can send and receive its own unsolicited CT command. | |
1621 | **/ | |
4042629e | 1622 | static int lpfcdiag_loop_self_reg(struct lpfc_hba *phba, uint16_t *rpi) |
3b5dd52a JS |
1623 | { |
1624 | LPFC_MBOXQ_t *mbox; | |
1625 | struct lpfc_dmabuf *dmabuff; | |
1626 | int status; | |
1627 | ||
1628 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
1629 | if (!mbox) | |
d439d286 | 1630 | return -ENOMEM; |
3b5dd52a | 1631 | |
4042629e JS |
1632 | if (phba->sli_rev == LPFC_SLI_REV4) |
1633 | *rpi = lpfc_sli4_alloc_rpi(phba); | |
3b5dd52a | 1634 | status = lpfc_reg_rpi(phba, 0, phba->pport->fc_myDID, |
4042629e | 1635 | (uint8_t *)&phba->pport->fc_sparam, mbox, *rpi); |
3b5dd52a JS |
1636 | if (status) { |
1637 | mempool_free(mbox, phba->mbox_mem_pool); | |
4042629e JS |
1638 | if (phba->sli_rev == LPFC_SLI_REV4) |
1639 | lpfc_sli4_free_rpi(phba, *rpi); | |
d439d286 | 1640 | return -ENOMEM; |
3b5dd52a JS |
1641 | } |
1642 | ||
1643 | dmabuff = (struct lpfc_dmabuf *) mbox->context1; | |
1644 | mbox->context1 = NULL; | |
d439d286 | 1645 | mbox->context2 = NULL; |
3b5dd52a JS |
1646 | status = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); |
1647 | ||
1648 | if ((status != MBX_SUCCESS) || (mbox->u.mb.mbxStatus)) { | |
1649 | lpfc_mbuf_free(phba, dmabuff->virt, dmabuff->phys); | |
1650 | kfree(dmabuff); | |
1651 | if (status != MBX_TIMEOUT) | |
1652 | mempool_free(mbox, phba->mbox_mem_pool); | |
4042629e JS |
1653 | if (phba->sli_rev == LPFC_SLI_REV4) |
1654 | lpfc_sli4_free_rpi(phba, *rpi); | |
d439d286 | 1655 | return -ENODEV; |
3b5dd52a JS |
1656 | } |
1657 | ||
1658 | *rpi = mbox->u.mb.un.varWords[0]; | |
1659 | ||
1660 | lpfc_mbuf_free(phba, dmabuff->virt, dmabuff->phys); | |
1661 | kfree(dmabuff); | |
1662 | mempool_free(mbox, phba->mbox_mem_pool); | |
1663 | return 0; | |
1664 | } | |
1665 | ||
1666 | /** | |
1667 | * lpfcdiag_loop_self_unreg - unregs from the rpi | |
1668 | * @phba: Pointer to HBA context object | |
1669 | * @rpi: Remote port login id | |
1670 | * | |
1671 | * This function unregisters the rpi obtained in lpfcdiag_loop_self_reg | |
1672 | **/ | |
1673 | static int lpfcdiag_loop_self_unreg(struct lpfc_hba *phba, uint16_t rpi) | |
1674 | { | |
1675 | LPFC_MBOXQ_t *mbox; | |
1676 | int status; | |
1677 | ||
1678 | /* Allocate mboxq structure */ | |
1679 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
1680 | if (mbox == NULL) | |
d439d286 | 1681 | return -ENOMEM; |
3b5dd52a JS |
1682 | |
1683 | lpfc_unreg_login(phba, 0, rpi, mbox); | |
1684 | status = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); | |
1685 | ||
1686 | if ((status != MBX_SUCCESS) || (mbox->u.mb.mbxStatus)) { | |
1687 | if (status != MBX_TIMEOUT) | |
1688 | mempool_free(mbox, phba->mbox_mem_pool); | |
d439d286 | 1689 | return -EIO; |
3b5dd52a | 1690 | } |
3b5dd52a | 1691 | mempool_free(mbox, phba->mbox_mem_pool); |
4042629e JS |
1692 | if (phba->sli_rev == LPFC_SLI_REV4) |
1693 | lpfc_sli4_free_rpi(phba, rpi); | |
3b5dd52a JS |
1694 | return 0; |
1695 | } | |
1696 | ||
1697 | /** | |
1698 | * lpfcdiag_loop_get_xri - obtains the transmit and receive ids | |
1699 | * @phba: Pointer to HBA context object | |
1700 | * @rpi: Remote port login id | |
1701 | * @txxri: Pointer to transmit exchange id | |
1702 | * @rxxri: Pointer to response exchabge id | |
1703 | * | |
1704 | * This function obtains the transmit and receive ids required to send | |
1705 | * an unsolicited ct command with a payload. A special lpfc FsType and CmdRsp | |
1706 | * flags are used to the unsolicted response handler is able to process | |
1707 | * the ct command sent on the same port. | |
1708 | **/ | |
1709 | static int lpfcdiag_loop_get_xri(struct lpfc_hba *phba, uint16_t rpi, | |
1710 | uint16_t *txxri, uint16_t * rxxri) | |
1711 | { | |
1712 | struct lpfc_bsg_event *evt; | |
1713 | struct lpfc_iocbq *cmdiocbq, *rspiocbq; | |
1714 | IOCB_t *cmd, *rsp; | |
1715 | struct lpfc_dmabuf *dmabuf; | |
1716 | struct ulp_bde64 *bpl = NULL; | |
1717 | struct lpfc_sli_ct_request *ctreq = NULL; | |
1718 | int ret_val = 0; | |
d439d286 | 1719 | int time_left; |
515e0aa2 | 1720 | int iocb_stat = 0; |
3b5dd52a JS |
1721 | unsigned long flags; |
1722 | ||
1723 | *txxri = 0; | |
1724 | *rxxri = 0; | |
1725 | evt = lpfc_bsg_event_new(FC_REG_CT_EVENT, current->pid, | |
1726 | SLI_CT_ELX_LOOPBACK); | |
1727 | if (!evt) | |
d439d286 | 1728 | return -ENOMEM; |
3b5dd52a JS |
1729 | |
1730 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
1731 | list_add(&evt->node, &phba->ct_ev_waiters); | |
1732 | lpfc_bsg_event_ref(evt); | |
1733 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
1734 | ||
1735 | cmdiocbq = lpfc_sli_get_iocbq(phba); | |
1736 | rspiocbq = lpfc_sli_get_iocbq(phba); | |
1737 | ||
1738 | dmabuf = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
1739 | if (dmabuf) { | |
1740 | dmabuf->virt = lpfc_mbuf_alloc(phba, 0, &dmabuf->phys); | |
c7495937 JS |
1741 | if (dmabuf->virt) { |
1742 | INIT_LIST_HEAD(&dmabuf->list); | |
1743 | bpl = (struct ulp_bde64 *) dmabuf->virt; | |
1744 | memset(bpl, 0, sizeof(*bpl)); | |
1745 | ctreq = (struct lpfc_sli_ct_request *)(bpl + 1); | |
1746 | bpl->addrHigh = | |
1747 | le32_to_cpu(putPaddrHigh(dmabuf->phys + | |
1748 | sizeof(*bpl))); | |
1749 | bpl->addrLow = | |
1750 | le32_to_cpu(putPaddrLow(dmabuf->phys + | |
1751 | sizeof(*bpl))); | |
1752 | bpl->tus.f.bdeFlags = 0; | |
1753 | bpl->tus.f.bdeSize = ELX_LOOPBACK_HEADER_SZ; | |
1754 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
1755 | } | |
3b5dd52a JS |
1756 | } |
1757 | ||
1758 | if (cmdiocbq == NULL || rspiocbq == NULL || | |
c7495937 JS |
1759 | dmabuf == NULL || bpl == NULL || ctreq == NULL || |
1760 | dmabuf->virt == NULL) { | |
d439d286 | 1761 | ret_val = -ENOMEM; |
3b5dd52a JS |
1762 | goto err_get_xri_exit; |
1763 | } | |
1764 | ||
1765 | cmd = &cmdiocbq->iocb; | |
1766 | rsp = &rspiocbq->iocb; | |
1767 | ||
1768 | memset(ctreq, 0, ELX_LOOPBACK_HEADER_SZ); | |
1769 | ||
1770 | ctreq->RevisionId.bits.Revision = SLI_CT_REVISION; | |
1771 | ctreq->RevisionId.bits.InId = 0; | |
1772 | ctreq->FsType = SLI_CT_ELX_LOOPBACK; | |
1773 | ctreq->FsSubType = 0; | |
1774 | ctreq->CommandResponse.bits.CmdRsp = ELX_LOOPBACK_XRI_SETUP; | |
1775 | ctreq->CommandResponse.bits.Size = 0; | |
1776 | ||
1777 | ||
1778 | cmd->un.xseq64.bdl.addrHigh = putPaddrHigh(dmabuf->phys); | |
1779 | cmd->un.xseq64.bdl.addrLow = putPaddrLow(dmabuf->phys); | |
1780 | cmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; | |
1781 | cmd->un.xseq64.bdl.bdeSize = sizeof(*bpl); | |
1782 | ||
1783 | cmd->un.xseq64.w5.hcsw.Fctl = LA; | |
1784 | cmd->un.xseq64.w5.hcsw.Dfctl = 0; | |
1785 | cmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL; | |
1786 | cmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT; | |
1787 | ||
1788 | cmd->ulpCommand = CMD_XMIT_SEQUENCE64_CR; | |
1789 | cmd->ulpBdeCount = 1; | |
1790 | cmd->ulpLe = 1; | |
1791 | cmd->ulpClass = CLASS3; | |
1792 | cmd->ulpContext = rpi; | |
1793 | ||
1794 | cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC; | |
1795 | cmdiocbq->vport = phba->pport; | |
1796 | ||
d439d286 | 1797 | iocb_stat = lpfc_sli_issue_iocb_wait(phba, LPFC_ELS_RING, cmdiocbq, |
3b5dd52a JS |
1798 | rspiocbq, |
1799 | (phba->fc_ratov * 2) | |
1800 | + LPFC_DRVR_TIMEOUT); | |
d439d286 JS |
1801 | if (iocb_stat) { |
1802 | ret_val = -EIO; | |
3b5dd52a | 1803 | goto err_get_xri_exit; |
d439d286 | 1804 | } |
3b5dd52a JS |
1805 | *txxri = rsp->ulpContext; |
1806 | ||
1807 | evt->waiting = 1; | |
1808 | evt->wait_time_stamp = jiffies; | |
d439d286 | 1809 | time_left = wait_event_interruptible_timeout( |
3b5dd52a JS |
1810 | evt->wq, !list_empty(&evt->events_to_see), |
1811 | ((phba->fc_ratov * 2) + LPFC_DRVR_TIMEOUT) * HZ); | |
1812 | if (list_empty(&evt->events_to_see)) | |
d439d286 | 1813 | ret_val = (time_left) ? -EINTR : -ETIMEDOUT; |
3b5dd52a | 1814 | else { |
3b5dd52a JS |
1815 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
1816 | list_move(evt->events_to_see.prev, &evt->events_to_get); | |
1817 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
1818 | *rxxri = (list_entry(evt->events_to_get.prev, | |
1819 | typeof(struct event_data), | |
1820 | node))->immed_dat; | |
1821 | } | |
1822 | evt->waiting = 0; | |
1823 | ||
1824 | err_get_xri_exit: | |
1825 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
1826 | lpfc_bsg_event_unref(evt); /* release ref */ | |
1827 | lpfc_bsg_event_unref(evt); /* delete */ | |
1828 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
1829 | ||
1830 | if (dmabuf) { | |
1831 | if (dmabuf->virt) | |
1832 | lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys); | |
1833 | kfree(dmabuf); | |
1834 | } | |
1835 | ||
d439d286 | 1836 | if (cmdiocbq && (iocb_stat != IOCB_TIMEDOUT)) |
3b5dd52a JS |
1837 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
1838 | if (rspiocbq) | |
1839 | lpfc_sli_release_iocbq(phba, rspiocbq); | |
1840 | return ret_val; | |
1841 | } | |
1842 | ||
1843 | /** | |
1844 | * diag_cmd_data_alloc - fills in a bde struct with dma buffers | |
1845 | * @phba: Pointer to HBA context object | |
1846 | * @bpl: Pointer to 64 bit bde structure | |
1847 | * @size: Number of bytes to process | |
1848 | * @nocopydata: Flag to copy user data into the allocated buffer | |
1849 | * | |
1850 | * This function allocates page size buffers and populates an lpfc_dmabufext. | |
1851 | * If allowed the user data pointed to with indataptr is copied into the kernel | |
1852 | * memory. The chained list of page size buffers is returned. | |
1853 | **/ | |
1854 | static struct lpfc_dmabufext * | |
1855 | diag_cmd_data_alloc(struct lpfc_hba *phba, | |
1856 | struct ulp_bde64 *bpl, uint32_t size, | |
1857 | int nocopydata) | |
1858 | { | |
1859 | struct lpfc_dmabufext *mlist = NULL; | |
1860 | struct lpfc_dmabufext *dmp; | |
1861 | int cnt, offset = 0, i = 0; | |
1862 | struct pci_dev *pcidev; | |
1863 | ||
1864 | pcidev = phba->pcidev; | |
1865 | ||
1866 | while (size) { | |
1867 | /* We get chunks of 4K */ | |
1868 | if (size > BUF_SZ_4K) | |
1869 | cnt = BUF_SZ_4K; | |
1870 | else | |
1871 | cnt = size; | |
1872 | ||
1873 | /* allocate struct lpfc_dmabufext buffer header */ | |
1874 | dmp = kmalloc(sizeof(struct lpfc_dmabufext), GFP_KERNEL); | |
1875 | if (!dmp) | |
1876 | goto out; | |
1877 | ||
1878 | INIT_LIST_HEAD(&dmp->dma.list); | |
1879 | ||
1880 | /* Queue it to a linked list */ | |
1881 | if (mlist) | |
1882 | list_add_tail(&dmp->dma.list, &mlist->dma.list); | |
1883 | else | |
1884 | mlist = dmp; | |
1885 | ||
1886 | /* allocate buffer */ | |
1887 | dmp->dma.virt = dma_alloc_coherent(&pcidev->dev, | |
1888 | cnt, | |
1889 | &(dmp->dma.phys), | |
1890 | GFP_KERNEL); | |
1891 | ||
1892 | if (!dmp->dma.virt) | |
1893 | goto out; | |
1894 | ||
1895 | dmp->size = cnt; | |
1896 | ||
1897 | if (nocopydata) { | |
1898 | bpl->tus.f.bdeFlags = 0; | |
1899 | pci_dma_sync_single_for_device(phba->pcidev, | |
1900 | dmp->dma.phys, LPFC_BPL_SIZE, PCI_DMA_TODEVICE); | |
1901 | ||
1902 | } else { | |
1903 | memset((uint8_t *)dmp->dma.virt, 0, cnt); | |
1904 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; | |
1905 | } | |
1906 | ||
1907 | /* build buffer ptr list for IOCB */ | |
1908 | bpl->addrLow = le32_to_cpu(putPaddrLow(dmp->dma.phys)); | |
1909 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(dmp->dma.phys)); | |
1910 | bpl->tus.f.bdeSize = (ushort) cnt; | |
1911 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
1912 | bpl++; | |
1913 | ||
1914 | i++; | |
1915 | offset += cnt; | |
1916 | size -= cnt; | |
1917 | } | |
1918 | ||
1919 | mlist->flag = i; | |
1920 | return mlist; | |
1921 | out: | |
1922 | diag_cmd_data_free(phba, mlist); | |
1923 | return NULL; | |
1924 | } | |
1925 | ||
1926 | /** | |
1927 | * lpfcdiag_loop_post_rxbufs - post the receive buffers for an unsol CT cmd | |
1928 | * @phba: Pointer to HBA context object | |
1929 | * @rxxri: Receive exchange id | |
1930 | * @len: Number of data bytes | |
1931 | * | |
1932 | * This function allocates and posts a data buffer of sufficient size to recieve | |
1933 | * an unsolicted CT command. | |
1934 | **/ | |
1935 | static int lpfcdiag_loop_post_rxbufs(struct lpfc_hba *phba, uint16_t rxxri, | |
1936 | size_t len) | |
1937 | { | |
1938 | struct lpfc_sli *psli = &phba->sli; | |
1939 | struct lpfc_sli_ring *pring = &psli->ring[LPFC_ELS_RING]; | |
1940 | struct lpfc_iocbq *cmdiocbq; | |
1941 | IOCB_t *cmd = NULL; | |
1942 | struct list_head head, *curr, *next; | |
1943 | struct lpfc_dmabuf *rxbmp; | |
1944 | struct lpfc_dmabuf *dmp; | |
1945 | struct lpfc_dmabuf *mp[2] = {NULL, NULL}; | |
1946 | struct ulp_bde64 *rxbpl = NULL; | |
1947 | uint32_t num_bde; | |
1948 | struct lpfc_dmabufext *rxbuffer = NULL; | |
1949 | int ret_val = 0; | |
d439d286 | 1950 | int iocb_stat; |
3b5dd52a JS |
1951 | int i = 0; |
1952 | ||
1953 | cmdiocbq = lpfc_sli_get_iocbq(phba); | |
1954 | rxbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
1955 | if (rxbmp != NULL) { | |
1956 | rxbmp->virt = lpfc_mbuf_alloc(phba, 0, &rxbmp->phys); | |
c7495937 JS |
1957 | if (rxbmp->virt) { |
1958 | INIT_LIST_HEAD(&rxbmp->list); | |
1959 | rxbpl = (struct ulp_bde64 *) rxbmp->virt; | |
1960 | rxbuffer = diag_cmd_data_alloc(phba, rxbpl, len, 0); | |
1961 | } | |
3b5dd52a JS |
1962 | } |
1963 | ||
1964 | if (!cmdiocbq || !rxbmp || !rxbpl || !rxbuffer) { | |
d439d286 | 1965 | ret_val = -ENOMEM; |
3b5dd52a JS |
1966 | goto err_post_rxbufs_exit; |
1967 | } | |
1968 | ||
1969 | /* Queue buffers for the receive exchange */ | |
1970 | num_bde = (uint32_t)rxbuffer->flag; | |
1971 | dmp = &rxbuffer->dma; | |
1972 | ||
1973 | cmd = &cmdiocbq->iocb; | |
1974 | i = 0; | |
1975 | ||
1976 | INIT_LIST_HEAD(&head); | |
1977 | list_add_tail(&head, &dmp->list); | |
1978 | list_for_each_safe(curr, next, &head) { | |
1979 | mp[i] = list_entry(curr, struct lpfc_dmabuf, list); | |
1980 | list_del(curr); | |
1981 | ||
1982 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { | |
1983 | mp[i]->buffer_tag = lpfc_sli_get_buffer_tag(phba); | |
1984 | cmd->un.quexri64cx.buff.bde.addrHigh = | |
1985 | putPaddrHigh(mp[i]->phys); | |
1986 | cmd->un.quexri64cx.buff.bde.addrLow = | |
1987 | putPaddrLow(mp[i]->phys); | |
1988 | cmd->un.quexri64cx.buff.bde.tus.f.bdeSize = | |
1989 | ((struct lpfc_dmabufext *)mp[i])->size; | |
1990 | cmd->un.quexri64cx.buff.buffer_tag = mp[i]->buffer_tag; | |
1991 | cmd->ulpCommand = CMD_QUE_XRI64_CX; | |
1992 | cmd->ulpPU = 0; | |
1993 | cmd->ulpLe = 1; | |
1994 | cmd->ulpBdeCount = 1; | |
1995 | cmd->unsli3.que_xri64cx_ext_words.ebde_count = 0; | |
1996 | ||
1997 | } else { | |
1998 | cmd->un.cont64[i].addrHigh = putPaddrHigh(mp[i]->phys); | |
1999 | cmd->un.cont64[i].addrLow = putPaddrLow(mp[i]->phys); | |
2000 | cmd->un.cont64[i].tus.f.bdeSize = | |
2001 | ((struct lpfc_dmabufext *)mp[i])->size; | |
2002 | cmd->ulpBdeCount = ++i; | |
2003 | ||
2004 | if ((--num_bde > 0) && (i < 2)) | |
2005 | continue; | |
2006 | ||
2007 | cmd->ulpCommand = CMD_QUE_XRI_BUF64_CX; | |
2008 | cmd->ulpLe = 1; | |
2009 | } | |
2010 | ||
2011 | cmd->ulpClass = CLASS3; | |
2012 | cmd->ulpContext = rxxri; | |
2013 | ||
d439d286 JS |
2014 | iocb_stat = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, |
2015 | 0); | |
2016 | if (iocb_stat == IOCB_ERROR) { | |
3b5dd52a JS |
2017 | diag_cmd_data_free(phba, |
2018 | (struct lpfc_dmabufext *)mp[0]); | |
2019 | if (mp[1]) | |
2020 | diag_cmd_data_free(phba, | |
2021 | (struct lpfc_dmabufext *)mp[1]); | |
2022 | dmp = list_entry(next, struct lpfc_dmabuf, list); | |
d439d286 | 2023 | ret_val = -EIO; |
3b5dd52a JS |
2024 | goto err_post_rxbufs_exit; |
2025 | } | |
2026 | ||
2027 | lpfc_sli_ringpostbuf_put(phba, pring, mp[0]); | |
2028 | if (mp[1]) { | |
2029 | lpfc_sli_ringpostbuf_put(phba, pring, mp[1]); | |
2030 | mp[1] = NULL; | |
2031 | } | |
2032 | ||
2033 | /* The iocb was freed by lpfc_sli_issue_iocb */ | |
2034 | cmdiocbq = lpfc_sli_get_iocbq(phba); | |
2035 | if (!cmdiocbq) { | |
2036 | dmp = list_entry(next, struct lpfc_dmabuf, list); | |
d439d286 | 2037 | ret_val = -EIO; |
3b5dd52a JS |
2038 | goto err_post_rxbufs_exit; |
2039 | } | |
2040 | ||
2041 | cmd = &cmdiocbq->iocb; | |
2042 | i = 0; | |
2043 | } | |
2044 | list_del(&head); | |
2045 | ||
2046 | err_post_rxbufs_exit: | |
2047 | ||
2048 | if (rxbmp) { | |
2049 | if (rxbmp->virt) | |
2050 | lpfc_mbuf_free(phba, rxbmp->virt, rxbmp->phys); | |
2051 | kfree(rxbmp); | |
2052 | } | |
2053 | ||
2054 | if (cmdiocbq) | |
2055 | lpfc_sli_release_iocbq(phba, cmdiocbq); | |
2056 | return ret_val; | |
2057 | } | |
2058 | ||
2059 | /** | |
2060 | * lpfc_bsg_diag_test - with a port in loopback issues a Ct cmd to itself | |
2061 | * @job: LPFC_BSG_VENDOR_DIAG_TEST fc_bsg_job | |
2062 | * | |
2063 | * This function receives a user data buffer to be transmitted and received on | |
2064 | * the same port, the link must be up and in loopback mode prior | |
2065 | * to being called. | |
2066 | * 1. A kernel buffer is allocated to copy the user data into. | |
2067 | * 2. The port registers with "itself". | |
2068 | * 3. The transmit and receive exchange ids are obtained. | |
2069 | * 4. The receive exchange id is posted. | |
2070 | * 5. A new els loopback event is created. | |
2071 | * 6. The command and response iocbs are allocated. | |
2072 | * 7. The cmd iocb FsType is set to elx loopback and the CmdRsp to looppback. | |
2073 | * | |
2074 | * This function is meant to be called n times while the port is in loopback | |
2075 | * so it is the apps responsibility to issue a reset to take the port out | |
2076 | * of loopback mode. | |
2077 | **/ | |
2078 | static int | |
2079 | lpfc_bsg_diag_test(struct fc_bsg_job *job) | |
2080 | { | |
2081 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
2082 | struct lpfc_hba *phba = vport->phba; | |
2083 | struct diag_mode_test *diag_mode; | |
2084 | struct lpfc_bsg_event *evt; | |
2085 | struct event_data *evdat; | |
2086 | struct lpfc_sli *psli = &phba->sli; | |
2087 | uint32_t size; | |
2088 | uint32_t full_size; | |
2089 | size_t segment_len = 0, segment_offset = 0, current_offset = 0; | |
4042629e | 2090 | uint16_t rpi = 0; |
3b5dd52a JS |
2091 | struct lpfc_iocbq *cmdiocbq, *rspiocbq; |
2092 | IOCB_t *cmd, *rsp; | |
2093 | struct lpfc_sli_ct_request *ctreq; | |
2094 | struct lpfc_dmabuf *txbmp; | |
2095 | struct ulp_bde64 *txbpl = NULL; | |
2096 | struct lpfc_dmabufext *txbuffer = NULL; | |
2097 | struct list_head head; | |
2098 | struct lpfc_dmabuf *curr; | |
2099 | uint16_t txxri, rxxri; | |
2100 | uint32_t num_bde; | |
2101 | uint8_t *ptr = NULL, *rx_databuf = NULL; | |
2102 | int rc = 0; | |
d439d286 JS |
2103 | int time_left; |
2104 | int iocb_stat; | |
3b5dd52a JS |
2105 | unsigned long flags; |
2106 | void *dataout = NULL; | |
2107 | uint32_t total_mem; | |
2108 | ||
2109 | /* in case no data is returned return just the return code */ | |
2110 | job->reply->reply_payload_rcv_len = 0; | |
2111 | ||
2112 | if (job->request_len < | |
2113 | sizeof(struct fc_bsg_request) + sizeof(struct diag_mode_test)) { | |
2114 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
2115 | "2739 Received DIAG TEST request below minimum " | |
2116 | "size\n"); | |
2117 | rc = -EINVAL; | |
2118 | goto loopback_test_exit; | |
2119 | } | |
2120 | ||
2121 | if (job->request_payload.payload_len != | |
2122 | job->reply_payload.payload_len) { | |
2123 | rc = -EINVAL; | |
2124 | goto loopback_test_exit; | |
2125 | } | |
2126 | ||
2127 | diag_mode = (struct diag_mode_test *) | |
2128 | job->request->rqst_data.h_vendor.vendor_cmd; | |
2129 | ||
2130 | if ((phba->link_state == LPFC_HBA_ERROR) || | |
2131 | (psli->sli_flag & LPFC_BLOCK_MGMT_IO) || | |
2132 | (!(psli->sli_flag & LPFC_SLI_ACTIVE))) { | |
2133 | rc = -EACCES; | |
2134 | goto loopback_test_exit; | |
2135 | } | |
2136 | ||
2137 | if (!lpfc_is_link_up(phba) || !(phba->link_flag & LS_LOOPBACK_MODE)) { | |
2138 | rc = -EACCES; | |
2139 | goto loopback_test_exit; | |
2140 | } | |
2141 | ||
2142 | size = job->request_payload.payload_len; | |
2143 | full_size = size + ELX_LOOPBACK_HEADER_SZ; /* plus the header */ | |
2144 | ||
2145 | if ((size == 0) || (size > 80 * BUF_SZ_4K)) { | |
2146 | rc = -ERANGE; | |
2147 | goto loopback_test_exit; | |
2148 | } | |
2149 | ||
63e801ce | 2150 | if (full_size >= BUF_SZ_4K) { |
3b5dd52a JS |
2151 | /* |
2152 | * Allocate memory for ioctl data. If buffer is bigger than 64k, | |
2153 | * then we allocate 64k and re-use that buffer over and over to | |
2154 | * xfer the whole block. This is because Linux kernel has a | |
2155 | * problem allocating more than 120k of kernel space memory. Saw | |
2156 | * problem with GET_FCPTARGETMAPPING... | |
2157 | */ | |
2158 | if (size <= (64 * 1024)) | |
63e801ce | 2159 | total_mem = full_size; |
3b5dd52a JS |
2160 | else |
2161 | total_mem = 64 * 1024; | |
2162 | } else | |
2163 | /* Allocate memory for ioctl data */ | |
2164 | total_mem = BUF_SZ_4K; | |
2165 | ||
2166 | dataout = kmalloc(total_mem, GFP_KERNEL); | |
2167 | if (dataout == NULL) { | |
2168 | rc = -ENOMEM; | |
2169 | goto loopback_test_exit; | |
2170 | } | |
2171 | ||
2172 | ptr = dataout; | |
2173 | ptr += ELX_LOOPBACK_HEADER_SZ; | |
2174 | sg_copy_to_buffer(job->request_payload.sg_list, | |
2175 | job->request_payload.sg_cnt, | |
2176 | ptr, size); | |
3b5dd52a | 2177 | rc = lpfcdiag_loop_self_reg(phba, &rpi); |
d439d286 | 2178 | if (rc) |
3b5dd52a | 2179 | goto loopback_test_exit; |
3b5dd52a JS |
2180 | |
2181 | rc = lpfcdiag_loop_get_xri(phba, rpi, &txxri, &rxxri); | |
2182 | if (rc) { | |
2183 | lpfcdiag_loop_self_unreg(phba, rpi); | |
3b5dd52a JS |
2184 | goto loopback_test_exit; |
2185 | } | |
2186 | ||
2187 | rc = lpfcdiag_loop_post_rxbufs(phba, rxxri, full_size); | |
2188 | if (rc) { | |
2189 | lpfcdiag_loop_self_unreg(phba, rpi); | |
3b5dd52a JS |
2190 | goto loopback_test_exit; |
2191 | } | |
2192 | ||
2193 | evt = lpfc_bsg_event_new(FC_REG_CT_EVENT, current->pid, | |
2194 | SLI_CT_ELX_LOOPBACK); | |
2195 | if (!evt) { | |
2196 | lpfcdiag_loop_self_unreg(phba, rpi); | |
2197 | rc = -ENOMEM; | |
2198 | goto loopback_test_exit; | |
2199 | } | |
2200 | ||
2201 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
2202 | list_add(&evt->node, &phba->ct_ev_waiters); | |
2203 | lpfc_bsg_event_ref(evt); | |
2204 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
2205 | ||
2206 | cmdiocbq = lpfc_sli_get_iocbq(phba); | |
2207 | rspiocbq = lpfc_sli_get_iocbq(phba); | |
2208 | txbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
2209 | ||
2210 | if (txbmp) { | |
2211 | txbmp->virt = lpfc_mbuf_alloc(phba, 0, &txbmp->phys); | |
c7495937 JS |
2212 | if (txbmp->virt) { |
2213 | INIT_LIST_HEAD(&txbmp->list); | |
2214 | txbpl = (struct ulp_bde64 *) txbmp->virt; | |
3b5dd52a JS |
2215 | txbuffer = diag_cmd_data_alloc(phba, |
2216 | txbpl, full_size, 0); | |
c7495937 | 2217 | } |
3b5dd52a JS |
2218 | } |
2219 | ||
c7495937 JS |
2220 | if (!cmdiocbq || !rspiocbq || !txbmp || !txbpl || !txbuffer || |
2221 | !txbmp->virt) { | |
3b5dd52a JS |
2222 | rc = -ENOMEM; |
2223 | goto err_loopback_test_exit; | |
2224 | } | |
2225 | ||
2226 | cmd = &cmdiocbq->iocb; | |
2227 | rsp = &rspiocbq->iocb; | |
2228 | ||
2229 | INIT_LIST_HEAD(&head); | |
2230 | list_add_tail(&head, &txbuffer->dma.list); | |
2231 | list_for_each_entry(curr, &head, list) { | |
2232 | segment_len = ((struct lpfc_dmabufext *)curr)->size; | |
2233 | if (current_offset == 0) { | |
2234 | ctreq = curr->virt; | |
2235 | memset(ctreq, 0, ELX_LOOPBACK_HEADER_SZ); | |
2236 | ctreq->RevisionId.bits.Revision = SLI_CT_REVISION; | |
2237 | ctreq->RevisionId.bits.InId = 0; | |
2238 | ctreq->FsType = SLI_CT_ELX_LOOPBACK; | |
2239 | ctreq->FsSubType = 0; | |
2240 | ctreq->CommandResponse.bits.CmdRsp = ELX_LOOPBACK_DATA; | |
2241 | ctreq->CommandResponse.bits.Size = size; | |
2242 | segment_offset = ELX_LOOPBACK_HEADER_SZ; | |
2243 | } else | |
2244 | segment_offset = 0; | |
2245 | ||
2246 | BUG_ON(segment_offset >= segment_len); | |
2247 | memcpy(curr->virt + segment_offset, | |
2248 | ptr + current_offset, | |
2249 | segment_len - segment_offset); | |
2250 | ||
2251 | current_offset += segment_len - segment_offset; | |
2252 | BUG_ON(current_offset > size); | |
2253 | } | |
2254 | list_del(&head); | |
2255 | ||
2256 | /* Build the XMIT_SEQUENCE iocb */ | |
2257 | ||
2258 | num_bde = (uint32_t)txbuffer->flag; | |
2259 | ||
2260 | cmd->un.xseq64.bdl.addrHigh = putPaddrHigh(txbmp->phys); | |
2261 | cmd->un.xseq64.bdl.addrLow = putPaddrLow(txbmp->phys); | |
2262 | cmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; | |
2263 | cmd->un.xseq64.bdl.bdeSize = (num_bde * sizeof(struct ulp_bde64)); | |
2264 | ||
2265 | cmd->un.xseq64.w5.hcsw.Fctl = (LS | LA); | |
2266 | cmd->un.xseq64.w5.hcsw.Dfctl = 0; | |
2267 | cmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL; | |
2268 | cmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT; | |
2269 | ||
2270 | cmd->ulpCommand = CMD_XMIT_SEQUENCE64_CX; | |
2271 | cmd->ulpBdeCount = 1; | |
2272 | cmd->ulpLe = 1; | |
2273 | cmd->ulpClass = CLASS3; | |
2274 | cmd->ulpContext = txxri; | |
2275 | ||
2276 | cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC; | |
2277 | cmdiocbq->vport = phba->pport; | |
2278 | ||
d439d286 JS |
2279 | iocb_stat = lpfc_sli_issue_iocb_wait(phba, LPFC_ELS_RING, cmdiocbq, |
2280 | rspiocbq, (phba->fc_ratov * 2) + | |
2281 | LPFC_DRVR_TIMEOUT); | |
3b5dd52a | 2282 | |
d439d286 | 2283 | if ((iocb_stat != IOCB_SUCCESS) || (rsp->ulpStatus != IOCB_SUCCESS)) { |
3b5dd52a JS |
2284 | rc = -EIO; |
2285 | goto err_loopback_test_exit; | |
2286 | } | |
2287 | ||
2288 | evt->waiting = 1; | |
d439d286 | 2289 | time_left = wait_event_interruptible_timeout( |
3b5dd52a JS |
2290 | evt->wq, !list_empty(&evt->events_to_see), |
2291 | ((phba->fc_ratov * 2) + LPFC_DRVR_TIMEOUT) * HZ); | |
2292 | evt->waiting = 0; | |
2293 | if (list_empty(&evt->events_to_see)) | |
d439d286 | 2294 | rc = (time_left) ? -EINTR : -ETIMEDOUT; |
3b5dd52a JS |
2295 | else { |
2296 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
2297 | list_move(evt->events_to_see.prev, &evt->events_to_get); | |
2298 | evdat = list_entry(evt->events_to_get.prev, | |
2299 | typeof(*evdat), node); | |
2300 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
2301 | rx_databuf = evdat->data; | |
2302 | if (evdat->len != full_size) { | |
2303 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, | |
2304 | "1603 Loopback test did not receive expected " | |
2305 | "data length. actual length 0x%x expected " | |
2306 | "length 0x%x\n", | |
2307 | evdat->len, full_size); | |
2308 | rc = -EIO; | |
2309 | } else if (rx_databuf == NULL) | |
2310 | rc = -EIO; | |
2311 | else { | |
2312 | rc = IOCB_SUCCESS; | |
2313 | /* skip over elx loopback header */ | |
2314 | rx_databuf += ELX_LOOPBACK_HEADER_SZ; | |
2315 | job->reply->reply_payload_rcv_len = | |
2316 | sg_copy_from_buffer(job->reply_payload.sg_list, | |
2317 | job->reply_payload.sg_cnt, | |
2318 | rx_databuf, size); | |
2319 | job->reply->reply_payload_rcv_len = size; | |
2320 | } | |
2321 | } | |
2322 | ||
2323 | err_loopback_test_exit: | |
2324 | lpfcdiag_loop_self_unreg(phba, rpi); | |
2325 | ||
2326 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
2327 | lpfc_bsg_event_unref(evt); /* release ref */ | |
2328 | lpfc_bsg_event_unref(evt); /* delete */ | |
2329 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
2330 | ||
2331 | if (cmdiocbq != NULL) | |
2332 | lpfc_sli_release_iocbq(phba, cmdiocbq); | |
2333 | ||
2334 | if (rspiocbq != NULL) | |
2335 | lpfc_sli_release_iocbq(phba, rspiocbq); | |
2336 | ||
2337 | if (txbmp != NULL) { | |
2338 | if (txbpl != NULL) { | |
2339 | if (txbuffer != NULL) | |
2340 | diag_cmd_data_free(phba, txbuffer); | |
2341 | lpfc_mbuf_free(phba, txbmp->virt, txbmp->phys); | |
2342 | } | |
2343 | kfree(txbmp); | |
2344 | } | |
2345 | ||
2346 | loopback_test_exit: | |
2347 | kfree(dataout); | |
2348 | /* make error code available to userspace */ | |
2349 | job->reply->result = rc; | |
2350 | job->dd_data = NULL; | |
2351 | /* complete the job back to userspace if no error */ | |
2352 | if (rc == 0) | |
2353 | job->job_done(job); | |
2354 | return rc; | |
2355 | } | |
2356 | ||
2357 | /** | |
2358 | * lpfc_bsg_get_dfc_rev - process a GET_DFC_REV bsg vendor command | |
2359 | * @job: GET_DFC_REV fc_bsg_job | |
2360 | **/ | |
2361 | static int | |
2362 | lpfc_bsg_get_dfc_rev(struct fc_bsg_job *job) | |
2363 | { | |
2364 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
2365 | struct lpfc_hba *phba = vport->phba; | |
2366 | struct get_mgmt_rev *event_req; | |
2367 | struct get_mgmt_rev_reply *event_reply; | |
2368 | int rc = 0; | |
2369 | ||
2370 | if (job->request_len < | |
2371 | sizeof(struct fc_bsg_request) + sizeof(struct get_mgmt_rev)) { | |
2372 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
2373 | "2740 Received GET_DFC_REV request below " | |
2374 | "minimum size\n"); | |
2375 | rc = -EINVAL; | |
2376 | goto job_error; | |
2377 | } | |
2378 | ||
2379 | event_req = (struct get_mgmt_rev *) | |
2380 | job->request->rqst_data.h_vendor.vendor_cmd; | |
2381 | ||
2382 | event_reply = (struct get_mgmt_rev_reply *) | |
2383 | job->reply->reply_data.vendor_reply.vendor_rsp; | |
2384 | ||
2385 | if (job->reply_len < | |
2386 | sizeof(struct fc_bsg_request) + sizeof(struct get_mgmt_rev_reply)) { | |
2387 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
2388 | "2741 Received GET_DFC_REV reply below " | |
2389 | "minimum size\n"); | |
2390 | rc = -EINVAL; | |
2391 | goto job_error; | |
2392 | } | |
2393 | ||
2394 | event_reply->info.a_Major = MANAGEMENT_MAJOR_REV; | |
2395 | event_reply->info.a_Minor = MANAGEMENT_MINOR_REV; | |
2396 | job_error: | |
2397 | job->reply->result = rc; | |
2398 | if (rc == 0) | |
2399 | job->job_done(job); | |
2400 | return rc; | |
2401 | } | |
2402 | ||
2403 | /** | |
2404 | * lpfc_bsg_wake_mbox_wait - lpfc_bsg_issue_mbox mbox completion handler | |
2405 | * @phba: Pointer to HBA context object. | |
2406 | * @pmboxq: Pointer to mailbox command. | |
2407 | * | |
2408 | * This is completion handler function for mailbox commands issued from | |
2409 | * lpfc_bsg_issue_mbox function. This function is called by the | |
2410 | * mailbox event handler function with no lock held. This function | |
2411 | * will wake up thread waiting on the wait queue pointed by context1 | |
2412 | * of the mailbox. | |
2413 | **/ | |
2414 | void | |
2415 | lpfc_bsg_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) | |
2416 | { | |
2417 | struct bsg_job_data *dd_data; | |
3b5dd52a JS |
2418 | struct fc_bsg_job *job; |
2419 | uint32_t size; | |
2420 | unsigned long flags; | |
7a470277 JS |
2421 | uint8_t *to; |
2422 | uint8_t *from; | |
3b5dd52a JS |
2423 | |
2424 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
2425 | dd_data = pmboxq->context1; | |
7a470277 | 2426 | /* job already timed out? */ |
3b5dd52a JS |
2427 | if (!dd_data) { |
2428 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
2429 | return; | |
2430 | } | |
2431 | ||
7a470277 JS |
2432 | /* build the outgoing buffer to do an sg copy |
2433 | * the format is the response mailbox followed by any extended | |
2434 | * mailbox data | |
2435 | */ | |
2436 | from = (uint8_t *)&pmboxq->u.mb; | |
2437 | to = (uint8_t *)dd_data->context_un.mbox.mb; | |
2438 | memcpy(to, from, sizeof(MAILBOX_t)); | |
c7495937 JS |
2439 | if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS) { |
2440 | /* copy the extended data if any, count is in words */ | |
2441 | if (dd_data->context_un.mbox.outExtWLen) { | |
2442 | from = (uint8_t *)dd_data->context_un.mbox.ext; | |
2443 | to += sizeof(MAILBOX_t); | |
2444 | size = dd_data->context_un.mbox.outExtWLen * | |
2445 | sizeof(uint32_t); | |
2446 | memcpy(to, from, size); | |
2447 | } else if (pmboxq->u.mb.mbxCommand == MBX_RUN_BIU_DIAG64) { | |
2448 | from = (uint8_t *)dd_data->context_un.mbox. | |
2449 | dmp->dma.virt; | |
2450 | to += sizeof(MAILBOX_t); | |
2451 | size = dd_data->context_un.mbox.dmp->size; | |
2452 | memcpy(to, from, size); | |
2453 | } else if ((phba->sli_rev == LPFC_SLI_REV4) && | |
2454 | (pmboxq->u.mb.mbxCommand == MBX_DUMP_MEMORY)) { | |
2455 | from = (uint8_t *)dd_data->context_un.mbox.dmp->dma. | |
2456 | virt; | |
2457 | to += sizeof(MAILBOX_t); | |
2458 | size = pmboxq->u.mb.un.varWords[5]; | |
2459 | memcpy(to, from, size); | |
515e0aa2 JS |
2460 | } else if ((phba->sli_rev == LPFC_SLI_REV4) && |
2461 | (pmboxq->u.mb.mbxCommand == MBX_SLI4_CONFIG)) { | |
2462 | struct lpfc_mbx_nembed_cmd *nembed_sge = | |
2463 | (struct lpfc_mbx_nembed_cmd *) | |
2464 | &pmboxq->u.mb.un.varWords[0]; | |
2465 | ||
2466 | from = (uint8_t *)dd_data->context_un.mbox.dmp->dma. | |
2467 | virt; | |
2468 | to += sizeof(MAILBOX_t); | |
2469 | size = nembed_sge->sge[0].length; | |
2470 | memcpy(to, from, size); | |
c7495937 JS |
2471 | } else if (pmboxq->u.mb.mbxCommand == MBX_READ_EVENT_LOG) { |
2472 | from = (uint8_t *)dd_data->context_un. | |
2473 | mbox.dmp->dma.virt; | |
2474 | to += sizeof(MAILBOX_t); | |
2475 | size = dd_data->context_un.mbox.dmp->size; | |
2476 | memcpy(to, from, size); | |
2477 | } | |
7a470277 JS |
2478 | } |
2479 | ||
2480 | from = (uint8_t *)dd_data->context_un.mbox.mb; | |
3b5dd52a | 2481 | job = dd_data->context_un.mbox.set_job; |
7a470277 | 2482 | size = job->reply_payload.payload_len; |
3b5dd52a JS |
2483 | job->reply->reply_payload_rcv_len = |
2484 | sg_copy_from_buffer(job->reply_payload.sg_list, | |
2485 | job->reply_payload.sg_cnt, | |
7a470277 | 2486 | from, size); |
3b5dd52a | 2487 | job->reply->result = 0; |
7a470277 | 2488 | |
3b5dd52a JS |
2489 | dd_data->context_un.mbox.set_job = NULL; |
2490 | job->dd_data = NULL; | |
2491 | job->job_done(job); | |
7a470277 JS |
2492 | /* need to hold the lock until we call job done to hold off |
2493 | * the timeout handler returning to the midlayer while | |
2494 | * we are stillprocessing the job | |
2495 | */ | |
3b5dd52a | 2496 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
7a470277 JS |
2497 | |
2498 | kfree(dd_data->context_un.mbox.mb); | |
3b5dd52a | 2499 | mempool_free(dd_data->context_un.mbox.pmboxq, phba->mbox_mem_pool); |
7a470277 JS |
2500 | kfree(dd_data->context_un.mbox.ext); |
2501 | if (dd_data->context_un.mbox.dmp) { | |
2502 | dma_free_coherent(&phba->pcidev->dev, | |
2503 | dd_data->context_un.mbox.dmp->size, | |
2504 | dd_data->context_un.mbox.dmp->dma.virt, | |
2505 | dd_data->context_un.mbox.dmp->dma.phys); | |
2506 | kfree(dd_data->context_un.mbox.dmp); | |
2507 | } | |
2508 | if (dd_data->context_un.mbox.rxbmp) { | |
2509 | lpfc_mbuf_free(phba, dd_data->context_un.mbox.rxbmp->virt, | |
2510 | dd_data->context_un.mbox.rxbmp->phys); | |
2511 | kfree(dd_data->context_un.mbox.rxbmp); | |
2512 | } | |
3b5dd52a JS |
2513 | kfree(dd_data); |
2514 | return; | |
2515 | } | |
2516 | ||
2517 | /** | |
2518 | * lpfc_bsg_check_cmd_access - test for a supported mailbox command | |
2519 | * @phba: Pointer to HBA context object. | |
2520 | * @mb: Pointer to a mailbox object. | |
2521 | * @vport: Pointer to a vport object. | |
2522 | * | |
2523 | * Some commands require the port to be offline, some may not be called from | |
2524 | * the application. | |
2525 | **/ | |
2526 | static int lpfc_bsg_check_cmd_access(struct lpfc_hba *phba, | |
2527 | MAILBOX_t *mb, struct lpfc_vport *vport) | |
2528 | { | |
2529 | /* return negative error values for bsg job */ | |
2530 | switch (mb->mbxCommand) { | |
2531 | /* Offline only */ | |
2532 | case MBX_INIT_LINK: | |
2533 | case MBX_DOWN_LINK: | |
2534 | case MBX_CONFIG_LINK: | |
2535 | case MBX_CONFIG_RING: | |
2536 | case MBX_RESET_RING: | |
2537 | case MBX_UNREG_LOGIN: | |
2538 | case MBX_CLEAR_LA: | |
2539 | case MBX_DUMP_CONTEXT: | |
2540 | case MBX_RUN_DIAGS: | |
2541 | case MBX_RESTART: | |
2542 | case MBX_SET_MASK: | |
2543 | if (!(vport->fc_flag & FC_OFFLINE_MODE)) { | |
2544 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
2545 | "2743 Command 0x%x is illegal in on-line " | |
2546 | "state\n", | |
2547 | mb->mbxCommand); | |
2548 | return -EPERM; | |
2549 | } | |
2550 | case MBX_WRITE_NV: | |
2551 | case MBX_WRITE_VPARMS: | |
2552 | case MBX_LOAD_SM: | |
2553 | case MBX_READ_NV: | |
2554 | case MBX_READ_CONFIG: | |
2555 | case MBX_READ_RCONFIG: | |
2556 | case MBX_READ_STATUS: | |
2557 | case MBX_READ_XRI: | |
2558 | case MBX_READ_REV: | |
2559 | case MBX_READ_LNK_STAT: | |
2560 | case MBX_DUMP_MEMORY: | |
2561 | case MBX_DOWN_LOAD: | |
2562 | case MBX_UPDATE_CFG: | |
2563 | case MBX_KILL_BOARD: | |
2564 | case MBX_LOAD_AREA: | |
2565 | case MBX_LOAD_EXP_ROM: | |
2566 | case MBX_BEACON: | |
2567 | case MBX_DEL_LD_ENTRY: | |
2568 | case MBX_SET_DEBUG: | |
2569 | case MBX_WRITE_WWN: | |
2570 | case MBX_SLI4_CONFIG: | |
c7495937 | 2571 | case MBX_READ_EVENT_LOG: |
3b5dd52a JS |
2572 | case MBX_READ_EVENT_LOG_STATUS: |
2573 | case MBX_WRITE_EVENT_LOG: | |
2574 | case MBX_PORT_CAPABILITIES: | |
2575 | case MBX_PORT_IOV_CONTROL: | |
7a470277 | 2576 | case MBX_RUN_BIU_DIAG64: |
3b5dd52a JS |
2577 | break; |
2578 | case MBX_SET_VARIABLE: | |
e2aed29f JS |
2579 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
2580 | "1226 mbox: set_variable 0x%x, 0x%x\n", | |
2581 | mb->un.varWords[0], | |
2582 | mb->un.varWords[1]); | |
2583 | if ((mb->un.varWords[0] == SETVAR_MLOMNT) | |
2584 | && (mb->un.varWords[1] == 1)) { | |
2585 | phba->wait_4_mlo_maint_flg = 1; | |
2586 | } else if (mb->un.varWords[0] == SETVAR_MLORST) { | |
2587 | phba->link_flag &= ~LS_LOOPBACK_MODE; | |
76a95d75 | 2588 | phba->fc_topology = LPFC_TOPOLOGY_PT_PT; |
e2aed29f JS |
2589 | } |
2590 | break; | |
3b5dd52a | 2591 | case MBX_READ_SPARM64: |
76a95d75 | 2592 | case MBX_READ_TOPOLOGY: |
3b5dd52a JS |
2593 | case MBX_REG_LOGIN: |
2594 | case MBX_REG_LOGIN64: | |
2595 | case MBX_CONFIG_PORT: | |
2596 | case MBX_RUN_BIU_DIAG: | |
2597 | default: | |
2598 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
2599 | "2742 Unknown Command 0x%x\n", | |
2600 | mb->mbxCommand); | |
2601 | return -EPERM; | |
2602 | } | |
2603 | ||
2604 | return 0; /* ok */ | |
2605 | } | |
2606 | ||
2607 | /** | |
2608 | * lpfc_bsg_issue_mbox - issues a mailbox command on behalf of an app | |
2609 | * @phba: Pointer to HBA context object. | |
2610 | * @mb: Pointer to a mailbox object. | |
2611 | * @vport: Pointer to a vport object. | |
2612 | * | |
2613 | * Allocate a tracking object, mailbox command memory, get a mailbox | |
2614 | * from the mailbox pool, copy the caller mailbox command. | |
2615 | * | |
2616 | * If offline and the sli is active we need to poll for the command (port is | |
2617 | * being reset) and com-plete the job, otherwise issue the mailbox command and | |
2618 | * let our completion handler finish the command. | |
2619 | **/ | |
2620 | static uint32_t | |
2621 | lpfc_bsg_issue_mbox(struct lpfc_hba *phba, struct fc_bsg_job *job, | |
2622 | struct lpfc_vport *vport) | |
2623 | { | |
7a470277 JS |
2624 | LPFC_MBOXQ_t *pmboxq = NULL; /* internal mailbox queue */ |
2625 | MAILBOX_t *pmb; /* shortcut to the pmboxq mailbox */ | |
2626 | /* a 4k buffer to hold the mb and extended data from/to the bsg */ | |
2627 | MAILBOX_t *mb = NULL; | |
2628 | struct bsg_job_data *dd_data = NULL; /* bsg data tracking structure */ | |
3b5dd52a | 2629 | uint32_t size; |
7a470277 JS |
2630 | struct lpfc_dmabuf *rxbmp = NULL; /* for biu diag */ |
2631 | struct lpfc_dmabufext *dmp = NULL; /* for biu diag */ | |
2632 | struct ulp_bde64 *rxbpl = NULL; | |
2633 | struct dfc_mbox_req *mbox_req = (struct dfc_mbox_req *) | |
2634 | job->request->rqst_data.h_vendor.vendor_cmd; | |
2635 | uint8_t *ext = NULL; | |
3b5dd52a | 2636 | int rc = 0; |
7a470277 JS |
2637 | uint8_t *from; |
2638 | ||
2639 | /* in case no data is transferred */ | |
2640 | job->reply->reply_payload_rcv_len = 0; | |
2641 | ||
2642 | /* check if requested extended data lengths are valid */ | |
2643 | if ((mbox_req->inExtWLen > MAILBOX_EXT_SIZE) || | |
c7495937 | 2644 | (mbox_req->outExtWLen > MAILBOX_EXT_SIZE)) { |
7a470277 JS |
2645 | rc = -ERANGE; |
2646 | goto job_done; | |
2647 | } | |
3b5dd52a JS |
2648 | |
2649 | /* allocate our bsg tracking structure */ | |
2650 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); | |
2651 | if (!dd_data) { | |
2652 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
2653 | "2727 Failed allocation of dd_data\n"); | |
7a470277 JS |
2654 | rc = -ENOMEM; |
2655 | goto job_done; | |
3b5dd52a JS |
2656 | } |
2657 | ||
49198b37 | 2658 | mb = kzalloc(BSG_MBOX_SIZE, GFP_KERNEL); |
3b5dd52a | 2659 | if (!mb) { |
7a470277 JS |
2660 | rc = -ENOMEM; |
2661 | goto job_done; | |
3b5dd52a JS |
2662 | } |
2663 | ||
2664 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
2665 | if (!pmboxq) { | |
7a470277 JS |
2666 | rc = -ENOMEM; |
2667 | goto job_done; | |
3b5dd52a | 2668 | } |
7a470277 | 2669 | memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); |
3b5dd52a JS |
2670 | |
2671 | size = job->request_payload.payload_len; | |
7a470277 JS |
2672 | sg_copy_to_buffer(job->request_payload.sg_list, |
2673 | job->request_payload.sg_cnt, | |
2674 | mb, size); | |
3b5dd52a JS |
2675 | |
2676 | rc = lpfc_bsg_check_cmd_access(phba, mb, vport); | |
7a470277 JS |
2677 | if (rc != 0) |
2678 | goto job_done; /* must be negative */ | |
3b5dd52a | 2679 | |
3b5dd52a JS |
2680 | pmb = &pmboxq->u.mb; |
2681 | memcpy(pmb, mb, sizeof(*pmb)); | |
2682 | pmb->mbxOwner = OWN_HOST; | |
3b5dd52a JS |
2683 | pmboxq->vport = vport; |
2684 | ||
c7495937 JS |
2685 | /* If HBA encountered an error attention, allow only DUMP |
2686 | * or RESTART mailbox commands until the HBA is restarted. | |
2687 | */ | |
2688 | if (phba->pport->stopped && | |
2689 | pmb->mbxCommand != MBX_DUMP_MEMORY && | |
2690 | pmb->mbxCommand != MBX_RESTART && | |
2691 | pmb->mbxCommand != MBX_WRITE_VPARMS && | |
2692 | pmb->mbxCommand != MBX_WRITE_WWN) | |
2693 | lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, | |
2694 | "2797 mbox: Issued mailbox cmd " | |
2695 | "0x%x while in stopped state.\n", | |
2696 | pmb->mbxCommand); | |
2697 | ||
2698 | /* Don't allow mailbox commands to be sent when blocked | |
2699 | * or when in the middle of discovery | |
2700 | */ | |
2701 | if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) { | |
2702 | rc = -EAGAIN; | |
2703 | goto job_done; | |
2704 | } | |
2705 | ||
7a470277 | 2706 | /* extended mailbox commands will need an extended buffer */ |
c7495937 | 2707 | if (mbox_req->inExtWLen || mbox_req->outExtWLen) { |
7a470277 JS |
2708 | ext = kzalloc(MAILBOX_EXT_SIZE, GFP_KERNEL); |
2709 | if (!ext) { | |
2710 | rc = -ENOMEM; | |
2711 | goto job_done; | |
2712 | } | |
2713 | ||
2714 | /* any data for the device? */ | |
2715 | if (mbox_req->inExtWLen) { | |
2716 | from = (uint8_t *)mb; | |
2717 | from += sizeof(MAILBOX_t); | |
2718 | memcpy((uint8_t *)ext, from, | |
2719 | mbox_req->inExtWLen * sizeof(uint32_t)); | |
2720 | } | |
2721 | ||
7a470277 JS |
2722 | pmboxq->context2 = ext; |
2723 | pmboxq->in_ext_byte_len = | |
2724 | mbox_req->inExtWLen * sizeof(uint32_t); | |
2725 | pmboxq->out_ext_byte_len = | |
c7495937 | 2726 | mbox_req->outExtWLen * sizeof(uint32_t); |
7a470277 JS |
2727 | pmboxq->mbox_offset_word = mbox_req->mbOffset; |
2728 | } | |
2729 | ||
2730 | /* biu diag will need a kernel buffer to transfer the data | |
2731 | * allocate our own buffer and setup the mailbox command to | |
2732 | * use ours | |
2733 | */ | |
2734 | if (pmb->mbxCommand == MBX_RUN_BIU_DIAG64) { | |
c7495937 JS |
2735 | uint32_t transmit_length = pmb->un.varWords[1]; |
2736 | uint32_t receive_length = pmb->un.varWords[4]; | |
2737 | /* transmit length cannot be greater than receive length or | |
2738 | * mailbox extension size | |
2739 | */ | |
2740 | if ((transmit_length > receive_length) || | |
2741 | (transmit_length > MAILBOX_EXT_SIZE)) { | |
2742 | rc = -ERANGE; | |
2743 | goto job_done; | |
2744 | } | |
2745 | ||
7a470277 JS |
2746 | rxbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
2747 | if (!rxbmp) { | |
2748 | rc = -ENOMEM; | |
2749 | goto job_done; | |
2750 | } | |
2751 | ||
2752 | rxbmp->virt = lpfc_mbuf_alloc(phba, 0, &rxbmp->phys); | |
c7495937 JS |
2753 | if (!rxbmp->virt) { |
2754 | rc = -ENOMEM; | |
2755 | goto job_done; | |
2756 | } | |
2757 | ||
7a470277 JS |
2758 | INIT_LIST_HEAD(&rxbmp->list); |
2759 | rxbpl = (struct ulp_bde64 *) rxbmp->virt; | |
c7495937 | 2760 | dmp = diag_cmd_data_alloc(phba, rxbpl, transmit_length, 0); |
7a470277 JS |
2761 | if (!dmp) { |
2762 | rc = -ENOMEM; | |
2763 | goto job_done; | |
2764 | } | |
2765 | ||
7a470277 JS |
2766 | INIT_LIST_HEAD(&dmp->dma.list); |
2767 | pmb->un.varBIUdiag.un.s2.xmit_bde64.addrHigh = | |
2768 | putPaddrHigh(dmp->dma.phys); | |
2769 | pmb->un.varBIUdiag.un.s2.xmit_bde64.addrLow = | |
2770 | putPaddrLow(dmp->dma.phys); | |
2771 | ||
2772 | pmb->un.varBIUdiag.un.s2.rcv_bde64.addrHigh = | |
2773 | putPaddrHigh(dmp->dma.phys + | |
2774 | pmb->un.varBIUdiag.un.s2. | |
2775 | xmit_bde64.tus.f.bdeSize); | |
2776 | pmb->un.varBIUdiag.un.s2.rcv_bde64.addrLow = | |
2777 | putPaddrLow(dmp->dma.phys + | |
2778 | pmb->un.varBIUdiag.un.s2. | |
2779 | xmit_bde64.tus.f.bdeSize); | |
c7495937 JS |
2780 | |
2781 | /* copy the transmit data found in the mailbox extension area */ | |
2782 | from = (uint8_t *)mb; | |
2783 | from += sizeof(MAILBOX_t); | |
2784 | memcpy((uint8_t *)dmp->dma.virt, from, transmit_length); | |
2785 | } else if (pmb->mbxCommand == MBX_READ_EVENT_LOG) { | |
2786 | struct READ_EVENT_LOG_VAR *rdEventLog = | |
2787 | &pmb->un.varRdEventLog ; | |
2788 | uint32_t receive_length = rdEventLog->rcv_bde64.tus.f.bdeSize; | |
2789 | uint32_t mode = bf_get(lpfc_event_log, rdEventLog); | |
2790 | ||
2791 | /* receive length cannot be greater than mailbox | |
2792 | * extension size | |
2793 | */ | |
2794 | if (receive_length > MAILBOX_EXT_SIZE) { | |
2795 | rc = -ERANGE; | |
2796 | goto job_done; | |
2797 | } | |
2798 | ||
2799 | /* mode zero uses a bde like biu diags command */ | |
2800 | if (mode == 0) { | |
2801 | ||
2802 | /* rebuild the command for sli4 using our own buffers | |
2803 | * like we do for biu diags | |
2804 | */ | |
2805 | ||
2806 | rxbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
2807 | if (!rxbmp) { | |
2808 | rc = -ENOMEM; | |
2809 | goto job_done; | |
2810 | } | |
2811 | ||
2812 | rxbmp->virt = lpfc_mbuf_alloc(phba, 0, &rxbmp->phys); | |
2813 | rxbpl = (struct ulp_bde64 *) rxbmp->virt; | |
2814 | if (rxbpl) { | |
2815 | INIT_LIST_HEAD(&rxbmp->list); | |
2816 | dmp = diag_cmd_data_alloc(phba, rxbpl, | |
2817 | receive_length, 0); | |
2818 | } | |
2819 | ||
2820 | if (!dmp) { | |
2821 | rc = -ENOMEM; | |
2822 | goto job_done; | |
2823 | } | |
2824 | ||
2825 | INIT_LIST_HEAD(&dmp->dma.list); | |
2826 | pmb->un.varWords[3] = putPaddrLow(dmp->dma.phys); | |
2827 | pmb->un.varWords[4] = putPaddrHigh(dmp->dma.phys); | |
2828 | } | |
2829 | } else if (phba->sli_rev == LPFC_SLI_REV4) { | |
2830 | if (pmb->mbxCommand == MBX_DUMP_MEMORY) { | |
2831 | /* rebuild the command for sli4 using our own buffers | |
2832 | * like we do for biu diags | |
2833 | */ | |
2834 | uint32_t receive_length = pmb->un.varWords[2]; | |
2835 | /* receive length cannot be greater than mailbox | |
2836 | * extension size | |
2837 | */ | |
2838 | if ((receive_length == 0) || | |
2839 | (receive_length > MAILBOX_EXT_SIZE)) { | |
2840 | rc = -ERANGE; | |
2841 | goto job_done; | |
2842 | } | |
2843 | ||
2844 | rxbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
2845 | if (!rxbmp) { | |
2846 | rc = -ENOMEM; | |
2847 | goto job_done; | |
2848 | } | |
2849 | ||
2850 | rxbmp->virt = lpfc_mbuf_alloc(phba, 0, &rxbmp->phys); | |
2851 | if (!rxbmp->virt) { | |
2852 | rc = -ENOMEM; | |
2853 | goto job_done; | |
2854 | } | |
2855 | ||
2856 | INIT_LIST_HEAD(&rxbmp->list); | |
2857 | rxbpl = (struct ulp_bde64 *) rxbmp->virt; | |
2858 | dmp = diag_cmd_data_alloc(phba, rxbpl, receive_length, | |
2859 | 0); | |
2860 | if (!dmp) { | |
2861 | rc = -ENOMEM; | |
2862 | goto job_done; | |
2863 | } | |
2864 | ||
2865 | INIT_LIST_HEAD(&dmp->dma.list); | |
2866 | pmb->un.varWords[3] = putPaddrLow(dmp->dma.phys); | |
2867 | pmb->un.varWords[4] = putPaddrHigh(dmp->dma.phys); | |
2868 | } else if ((pmb->mbxCommand == MBX_UPDATE_CFG) && | |
2869 | pmb->un.varUpdateCfg.co) { | |
2870 | struct ulp_bde64 *bde = | |
2871 | (struct ulp_bde64 *)&pmb->un.varWords[4]; | |
2872 | ||
2873 | /* bde size cannot be greater than mailbox ext size */ | |
2874 | if (bde->tus.f.bdeSize > MAILBOX_EXT_SIZE) { | |
2875 | rc = -ERANGE; | |
2876 | goto job_done; | |
2877 | } | |
2878 | ||
2879 | rxbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
2880 | if (!rxbmp) { | |
2881 | rc = -ENOMEM; | |
2882 | goto job_done; | |
2883 | } | |
2884 | ||
2885 | rxbmp->virt = lpfc_mbuf_alloc(phba, 0, &rxbmp->phys); | |
2886 | if (!rxbmp->virt) { | |
2887 | rc = -ENOMEM; | |
2888 | goto job_done; | |
2889 | } | |
2890 | ||
2891 | INIT_LIST_HEAD(&rxbmp->list); | |
2892 | rxbpl = (struct ulp_bde64 *) rxbmp->virt; | |
2893 | dmp = diag_cmd_data_alloc(phba, rxbpl, | |
2894 | bde->tus.f.bdeSize, 0); | |
2895 | if (!dmp) { | |
2896 | rc = -ENOMEM; | |
2897 | goto job_done; | |
2898 | } | |
2899 | ||
2900 | INIT_LIST_HEAD(&dmp->dma.list); | |
2901 | bde->addrHigh = putPaddrHigh(dmp->dma.phys); | |
2902 | bde->addrLow = putPaddrLow(dmp->dma.phys); | |
2903 | ||
2904 | /* copy the transmit data found in the mailbox | |
2905 | * extension area | |
2906 | */ | |
2907 | from = (uint8_t *)mb; | |
2908 | from += sizeof(MAILBOX_t); | |
2909 | memcpy((uint8_t *)dmp->dma.virt, from, | |
2910 | bde->tus.f.bdeSize); | |
515e0aa2 JS |
2911 | } else if (pmb->mbxCommand == MBX_SLI4_CONFIG) { |
2912 | struct lpfc_mbx_nembed_cmd *nembed_sge; | |
2913 | struct mbox_header *header; | |
2914 | uint32_t receive_length; | |
2915 | ||
2916 | /* rebuild the command for sli4 using our own buffers | |
2917 | * like we do for biu diags | |
2918 | */ | |
2919 | header = (struct mbox_header *)&pmb->un.varWords[0]; | |
2920 | nembed_sge = (struct lpfc_mbx_nembed_cmd *) | |
2921 | &pmb->un.varWords[0]; | |
2922 | receive_length = nembed_sge->sge[0].length; | |
2923 | ||
2924 | /* receive length cannot be greater than mailbox | |
2925 | * extension size | |
2926 | */ | |
2927 | if ((receive_length == 0) || | |
2928 | (receive_length > MAILBOX_EXT_SIZE)) { | |
2929 | rc = -ERANGE; | |
2930 | goto job_done; | |
2931 | } | |
2932 | ||
2933 | rxbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
2934 | if (!rxbmp) { | |
2935 | rc = -ENOMEM; | |
2936 | goto job_done; | |
2937 | } | |
2938 | ||
2939 | rxbmp->virt = lpfc_mbuf_alloc(phba, 0, &rxbmp->phys); | |
2940 | if (!rxbmp->virt) { | |
2941 | rc = -ENOMEM; | |
2942 | goto job_done; | |
2943 | } | |
2944 | ||
2945 | INIT_LIST_HEAD(&rxbmp->list); | |
2946 | rxbpl = (struct ulp_bde64 *) rxbmp->virt; | |
2947 | dmp = diag_cmd_data_alloc(phba, rxbpl, receive_length, | |
2948 | 0); | |
2949 | if (!dmp) { | |
2950 | rc = -ENOMEM; | |
2951 | goto job_done; | |
2952 | } | |
2953 | ||
2954 | INIT_LIST_HEAD(&dmp->dma.list); | |
2955 | nembed_sge->sge[0].pa_hi = putPaddrHigh(dmp->dma.phys); | |
2956 | nembed_sge->sge[0].pa_lo = putPaddrLow(dmp->dma.phys); | |
2957 | /* copy the transmit data found in the mailbox | |
2958 | * extension area | |
2959 | */ | |
2960 | from = (uint8_t *)mb; | |
2961 | from += sizeof(MAILBOX_t); | |
2962 | memcpy((uint8_t *)dmp->dma.virt, from, | |
2963 | header->cfg_mhdr.payload_length); | |
c7495937 | 2964 | } |
7a470277 JS |
2965 | } |
2966 | ||
c7495937 JS |
2967 | dd_data->context_un.mbox.rxbmp = rxbmp; |
2968 | dd_data->context_un.mbox.dmp = dmp; | |
2969 | ||
7a470277 JS |
2970 | /* setup wake call as IOCB callback */ |
2971 | pmboxq->mbox_cmpl = lpfc_bsg_wake_mbox_wait; | |
2972 | ||
2973 | /* setup context field to pass wait_queue pointer to wake function */ | |
2974 | pmboxq->context1 = dd_data; | |
2975 | dd_data->type = TYPE_MBOX; | |
2976 | dd_data->context_un.mbox.pmboxq = pmboxq; | |
2977 | dd_data->context_un.mbox.mb = mb; | |
2978 | dd_data->context_un.mbox.set_job = job; | |
2979 | dd_data->context_un.mbox.ext = ext; | |
2980 | dd_data->context_un.mbox.mbOffset = mbox_req->mbOffset; | |
2981 | dd_data->context_un.mbox.inExtWLen = mbox_req->inExtWLen; | |
c7495937 | 2982 | dd_data->context_un.mbox.outExtWLen = mbox_req->outExtWLen; |
7a470277 JS |
2983 | job->dd_data = dd_data; |
2984 | ||
3b5dd52a JS |
2985 | if ((vport->fc_flag & FC_OFFLINE_MODE) || |
2986 | (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE))) { | |
2987 | rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); | |
2988 | if (rc != MBX_SUCCESS) { | |
7a470277 JS |
2989 | rc = (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV; |
2990 | goto job_done; | |
3b5dd52a JS |
2991 | } |
2992 | ||
7a470277 | 2993 | /* job finished, copy the data */ |
3b5dd52a JS |
2994 | memcpy(mb, pmb, sizeof(*pmb)); |
2995 | job->reply->reply_payload_rcv_len = | |
2996 | sg_copy_from_buffer(job->reply_payload.sg_list, | |
2997 | job->reply_payload.sg_cnt, | |
2998 | mb, size); | |
3b5dd52a | 2999 | /* not waiting mbox already done */ |
7a470277 JS |
3000 | rc = 0; |
3001 | goto job_done; | |
3b5dd52a JS |
3002 | } |
3003 | ||
3b5dd52a | 3004 | rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); |
7a470277 JS |
3005 | if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY)) |
3006 | return 1; /* job started */ | |
3007 | ||
3008 | job_done: | |
3009 | /* common exit for error or job completed inline */ | |
3010 | kfree(mb); | |
3011 | if (pmboxq) | |
3b5dd52a | 3012 | mempool_free(pmboxq, phba->mbox_mem_pool); |
7a470277 JS |
3013 | kfree(ext); |
3014 | if (dmp) { | |
3015 | dma_free_coherent(&phba->pcidev->dev, | |
3016 | dmp->size, dmp->dma.virt, | |
3017 | dmp->dma.phys); | |
3018 | kfree(dmp); | |
3019 | } | |
3020 | if (rxbmp) { | |
3021 | lpfc_mbuf_free(phba, rxbmp->virt, rxbmp->phys); | |
3022 | kfree(rxbmp); | |
3b5dd52a | 3023 | } |
7a470277 | 3024 | kfree(dd_data); |
3b5dd52a | 3025 | |
7a470277 | 3026 | return rc; |
3b5dd52a JS |
3027 | } |
3028 | ||
3029 | /** | |
3030 | * lpfc_bsg_mbox_cmd - process an fc bsg LPFC_BSG_VENDOR_MBOX command | |
3031 | * @job: MBOX fc_bsg_job for LPFC_BSG_VENDOR_MBOX. | |
3032 | **/ | |
3033 | static int | |
3034 | lpfc_bsg_mbox_cmd(struct fc_bsg_job *job) | |
3035 | { | |
3036 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
3037 | struct lpfc_hba *phba = vport->phba; | |
3038 | int rc = 0; | |
3039 | ||
3040 | /* in case no data is transferred */ | |
3041 | job->reply->reply_payload_rcv_len = 0; | |
3042 | if (job->request_len < | |
3043 | sizeof(struct fc_bsg_request) + sizeof(struct dfc_mbox_req)) { | |
3044 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
3045 | "2737 Received MBOX_REQ request below " | |
3046 | "minimum size\n"); | |
3047 | rc = -EINVAL; | |
3048 | goto job_error; | |
3049 | } | |
3050 | ||
49198b37 | 3051 | if (job->request_payload.payload_len != BSG_MBOX_SIZE) { |
3b5dd52a JS |
3052 | rc = -EINVAL; |
3053 | goto job_error; | |
3054 | } | |
3055 | ||
49198b37 | 3056 | if (job->reply_payload.payload_len != BSG_MBOX_SIZE) { |
7a470277 JS |
3057 | rc = -EINVAL; |
3058 | goto job_error; | |
3059 | } | |
3060 | ||
3b5dd52a JS |
3061 | if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) { |
3062 | rc = -EAGAIN; | |
3063 | goto job_error; | |
3064 | } | |
3065 | ||
3066 | rc = lpfc_bsg_issue_mbox(phba, job, vport); | |
3067 | ||
3068 | job_error: | |
3069 | if (rc == 0) { | |
3070 | /* job done */ | |
3071 | job->reply->result = 0; | |
3072 | job->dd_data = NULL; | |
3073 | job->job_done(job); | |
3074 | } else if (rc == 1) | |
3075 | /* job submitted, will complete later*/ | |
3076 | rc = 0; /* return zero, no error */ | |
3077 | else { | |
3078 | /* some error occurred */ | |
3079 | job->reply->result = rc; | |
3080 | job->dd_data = NULL; | |
3081 | } | |
3082 | ||
3083 | return rc; | |
3084 | } | |
3085 | ||
e2aed29f JS |
3086 | /** |
3087 | * lpfc_bsg_menlo_cmd_cmp - lpfc_menlo_cmd completion handler | |
3088 | * @phba: Pointer to HBA context object. | |
3089 | * @cmdiocbq: Pointer to command iocb. | |
3090 | * @rspiocbq: Pointer to response iocb. | |
3091 | * | |
3092 | * This function is the completion handler for iocbs issued using | |
3093 | * lpfc_menlo_cmd function. This function is called by the | |
3094 | * ring event handler function without any lock held. This function | |
3095 | * can be called from both worker thread context and interrupt | |
3096 | * context. This function also can be called from another thread which | |
3097 | * cleans up the SLI layer objects. | |
3098 | * This function copies the contents of the response iocb to the | |
3099 | * response iocb memory object provided by the caller of | |
3100 | * lpfc_sli_issue_iocb_wait and then wakes up the thread which | |
3101 | * sleeps for the iocb completion. | |
3102 | **/ | |
3103 | static void | |
3104 | lpfc_bsg_menlo_cmd_cmp(struct lpfc_hba *phba, | |
3105 | struct lpfc_iocbq *cmdiocbq, | |
3106 | struct lpfc_iocbq *rspiocbq) | |
3107 | { | |
3108 | struct bsg_job_data *dd_data; | |
3109 | struct fc_bsg_job *job; | |
3110 | IOCB_t *rsp; | |
3111 | struct lpfc_dmabuf *bmp; | |
3112 | struct lpfc_bsg_menlo *menlo; | |
3113 | unsigned long flags; | |
3114 | struct menlo_response *menlo_resp; | |
3115 | int rc = 0; | |
3116 | ||
3117 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
3118 | dd_data = cmdiocbq->context1; | |
3119 | if (!dd_data) { | |
3120 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
3121 | return; | |
3122 | } | |
3123 | ||
3124 | menlo = &dd_data->context_un.menlo; | |
3125 | job = menlo->set_job; | |
3126 | job->dd_data = NULL; /* so timeout handler does not reply */ | |
3127 | ||
5989b8d4 | 3128 | spin_lock(&phba->hbalock); |
e2aed29f JS |
3129 | cmdiocbq->iocb_flag |= LPFC_IO_WAKE; |
3130 | if (cmdiocbq->context2 && rspiocbq) | |
3131 | memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb, | |
3132 | &rspiocbq->iocb, sizeof(IOCB_t)); | |
5989b8d4 | 3133 | spin_unlock(&phba->hbalock); |
e2aed29f JS |
3134 | |
3135 | bmp = menlo->bmp; | |
3136 | rspiocbq = menlo->rspiocbq; | |
3137 | rsp = &rspiocbq->iocb; | |
3138 | ||
3139 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, | |
3140 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
3141 | pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list, | |
3142 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); | |
3143 | ||
3144 | /* always return the xri, this would be used in the case | |
3145 | * of a menlo download to allow the data to be sent as a continuation | |
3146 | * of the exchange. | |
3147 | */ | |
3148 | menlo_resp = (struct menlo_response *) | |
3149 | job->reply->reply_data.vendor_reply.vendor_rsp; | |
3150 | menlo_resp->xri = rsp->ulpContext; | |
3151 | if (rsp->ulpStatus) { | |
3152 | if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) { | |
3153 | switch (rsp->un.ulpWord[4] & 0xff) { | |
3154 | case IOERR_SEQUENCE_TIMEOUT: | |
3155 | rc = -ETIMEDOUT; | |
3156 | break; | |
3157 | case IOERR_INVALID_RPI: | |
3158 | rc = -EFAULT; | |
3159 | break; | |
3160 | default: | |
3161 | rc = -EACCES; | |
3162 | break; | |
3163 | } | |
3164 | } else | |
3165 | rc = -EACCES; | |
3166 | } else | |
3167 | job->reply->reply_payload_rcv_len = | |
3168 | rsp->un.genreq64.bdl.bdeSize; | |
3169 | ||
3170 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); | |
3171 | lpfc_sli_release_iocbq(phba, rspiocbq); | |
3172 | lpfc_sli_release_iocbq(phba, cmdiocbq); | |
3173 | kfree(bmp); | |
3174 | kfree(dd_data); | |
3175 | /* make error code available to userspace */ | |
3176 | job->reply->result = rc; | |
3177 | /* complete the job back to userspace */ | |
3178 | job->job_done(job); | |
3179 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
3180 | return; | |
3181 | } | |
3182 | ||
3183 | /** | |
3184 | * lpfc_menlo_cmd - send an ioctl for menlo hardware | |
3185 | * @job: fc_bsg_job to handle | |
3186 | * | |
3187 | * This function issues a gen request 64 CR ioctl for all menlo cmd requests, | |
3188 | * all the command completions will return the xri for the command. | |
3189 | * For menlo data requests a gen request 64 CX is used to continue the exchange | |
3190 | * supplied in the menlo request header xri field. | |
3191 | **/ | |
3192 | static int | |
3193 | lpfc_menlo_cmd(struct fc_bsg_job *job) | |
3194 | { | |
3195 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
3196 | struct lpfc_hba *phba = vport->phba; | |
3197 | struct lpfc_iocbq *cmdiocbq, *rspiocbq; | |
3198 | IOCB_t *cmd, *rsp; | |
3199 | int rc = 0; | |
3200 | struct menlo_command *menlo_cmd; | |
3201 | struct menlo_response *menlo_resp; | |
3202 | struct lpfc_dmabuf *bmp = NULL; | |
3203 | int request_nseg; | |
3204 | int reply_nseg; | |
3205 | struct scatterlist *sgel = NULL; | |
3206 | int numbde; | |
3207 | dma_addr_t busaddr; | |
3208 | struct bsg_job_data *dd_data; | |
3209 | struct ulp_bde64 *bpl = NULL; | |
3210 | ||
3211 | /* in case no data is returned return just the return code */ | |
3212 | job->reply->reply_payload_rcv_len = 0; | |
3213 | ||
3214 | if (job->request_len < | |
3215 | sizeof(struct fc_bsg_request) + | |
3216 | sizeof(struct menlo_command)) { | |
3217 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
3218 | "2784 Received MENLO_CMD request below " | |
3219 | "minimum size\n"); | |
3220 | rc = -ERANGE; | |
3221 | goto no_dd_data; | |
3222 | } | |
3223 | ||
3224 | if (job->reply_len < | |
3225 | sizeof(struct fc_bsg_request) + sizeof(struct menlo_response)) { | |
3226 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
3227 | "2785 Received MENLO_CMD reply below " | |
3228 | "minimum size\n"); | |
3229 | rc = -ERANGE; | |
3230 | goto no_dd_data; | |
3231 | } | |
3232 | ||
3233 | if (!(phba->menlo_flag & HBA_MENLO_SUPPORT)) { | |
3234 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
3235 | "2786 Adapter does not support menlo " | |
3236 | "commands\n"); | |
3237 | rc = -EPERM; | |
3238 | goto no_dd_data; | |
3239 | } | |
3240 | ||
3241 | menlo_cmd = (struct menlo_command *) | |
3242 | job->request->rqst_data.h_vendor.vendor_cmd; | |
3243 | ||
3244 | menlo_resp = (struct menlo_response *) | |
3245 | job->reply->reply_data.vendor_reply.vendor_rsp; | |
3246 | ||
3247 | /* allocate our bsg tracking structure */ | |
3248 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); | |
3249 | if (!dd_data) { | |
3250 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, | |
3251 | "2787 Failed allocation of dd_data\n"); | |
3252 | rc = -ENOMEM; | |
3253 | goto no_dd_data; | |
3254 | } | |
3255 | ||
3256 | bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
3257 | if (!bmp) { | |
3258 | rc = -ENOMEM; | |
3259 | goto free_dd; | |
3260 | } | |
3261 | ||
3262 | cmdiocbq = lpfc_sli_get_iocbq(phba); | |
3263 | if (!cmdiocbq) { | |
3264 | rc = -ENOMEM; | |
3265 | goto free_bmp; | |
3266 | } | |
3267 | ||
3268 | rspiocbq = lpfc_sli_get_iocbq(phba); | |
3269 | if (!rspiocbq) { | |
3270 | rc = -ENOMEM; | |
3271 | goto free_cmdiocbq; | |
3272 | } | |
3273 | ||
3274 | rsp = &rspiocbq->iocb; | |
3275 | ||
3276 | bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys); | |
3277 | if (!bmp->virt) { | |
3278 | rc = -ENOMEM; | |
3279 | goto free_rspiocbq; | |
3280 | } | |
3281 | ||
3282 | INIT_LIST_HEAD(&bmp->list); | |
3283 | bpl = (struct ulp_bde64 *) bmp->virt; | |
3284 | request_nseg = pci_map_sg(phba->pcidev, job->request_payload.sg_list, | |
3285 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
3286 | for_each_sg(job->request_payload.sg_list, sgel, request_nseg, numbde) { | |
3287 | busaddr = sg_dma_address(sgel); | |
3288 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
3289 | bpl->tus.f.bdeSize = sg_dma_len(sgel); | |
3290 | bpl->tus.w = cpu_to_le32(bpl->tus.w); | |
3291 | bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr)); | |
3292 | bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr)); | |
3293 | bpl++; | |
3294 | } | |
3295 | ||
3296 | reply_nseg = pci_map_sg(phba->pcidev, job->reply_payload.sg_list, | |
3297 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); | |
3298 | for_each_sg(job->reply_payload.sg_list, sgel, reply_nseg, numbde) { | |
3299 | busaddr = sg_dma_address(sgel); | |
3300 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; | |
3301 | bpl->tus.f.bdeSize = sg_dma_len(sgel); | |
3302 | bpl->tus.w = cpu_to_le32(bpl->tus.w); | |
3303 | bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr)); | |
3304 | bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr)); | |
3305 | bpl++; | |
3306 | } | |
3307 | ||
3308 | cmd = &cmdiocbq->iocb; | |
3309 | cmd->un.genreq64.bdl.ulpIoTag32 = 0; | |
3310 | cmd->un.genreq64.bdl.addrHigh = putPaddrHigh(bmp->phys); | |
3311 | cmd->un.genreq64.bdl.addrLow = putPaddrLow(bmp->phys); | |
3312 | cmd->un.genreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; | |
3313 | cmd->un.genreq64.bdl.bdeSize = | |
3314 | (request_nseg + reply_nseg) * sizeof(struct ulp_bde64); | |
3315 | cmd->un.genreq64.w5.hcsw.Fctl = (SI | LA); | |
3316 | cmd->un.genreq64.w5.hcsw.Dfctl = 0; | |
3317 | cmd->un.genreq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CMD; | |
3318 | cmd->un.genreq64.w5.hcsw.Type = MENLO_TRANSPORT_TYPE; /* 0xfe */ | |
3319 | cmd->ulpBdeCount = 1; | |
3320 | cmd->ulpClass = CLASS3; | |
3321 | cmd->ulpOwner = OWN_CHIP; | |
3322 | cmd->ulpLe = 1; /* Limited Edition */ | |
3323 | cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC; | |
3324 | cmdiocbq->vport = phba->pport; | |
3325 | /* We want the firmware to timeout before we do */ | |
3326 | cmd->ulpTimeout = MENLO_TIMEOUT - 5; | |
3327 | cmdiocbq->context3 = bmp; | |
3328 | cmdiocbq->context2 = rspiocbq; | |
3329 | cmdiocbq->iocb_cmpl = lpfc_bsg_menlo_cmd_cmp; | |
3330 | cmdiocbq->context1 = dd_data; | |
3331 | cmdiocbq->context2 = rspiocbq; | |
3332 | if (menlo_cmd->cmd == LPFC_BSG_VENDOR_MENLO_CMD) { | |
3333 | cmd->ulpCommand = CMD_GEN_REQUEST64_CR; | |
3334 | cmd->ulpPU = MENLO_PU; /* 3 */ | |
3335 | cmd->un.ulpWord[4] = MENLO_DID; /* 0x0000FC0E */ | |
3336 | cmd->ulpContext = MENLO_CONTEXT; /* 0 */ | |
3337 | } else { | |
3338 | cmd->ulpCommand = CMD_GEN_REQUEST64_CX; | |
3339 | cmd->ulpPU = 1; | |
3340 | cmd->un.ulpWord[4] = 0; | |
3341 | cmd->ulpContext = menlo_cmd->xri; | |
3342 | } | |
3343 | ||
3344 | dd_data->type = TYPE_MENLO; | |
3345 | dd_data->context_un.menlo.cmdiocbq = cmdiocbq; | |
3346 | dd_data->context_un.menlo.rspiocbq = rspiocbq; | |
3347 | dd_data->context_un.menlo.set_job = job; | |
3348 | dd_data->context_un.menlo.bmp = bmp; | |
3349 | ||
3350 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, | |
3351 | MENLO_TIMEOUT - 5); | |
3352 | if (rc == IOCB_SUCCESS) | |
3353 | return 0; /* done for now */ | |
3354 | ||
3355 | /* iocb failed so cleanup */ | |
3356 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, | |
3357 | job->request_payload.sg_cnt, DMA_TO_DEVICE); | |
3358 | pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list, | |
3359 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); | |
3360 | ||
3361 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); | |
3362 | ||
3363 | free_rspiocbq: | |
3364 | lpfc_sli_release_iocbq(phba, rspiocbq); | |
3365 | free_cmdiocbq: | |
3366 | lpfc_sli_release_iocbq(phba, cmdiocbq); | |
3367 | free_bmp: | |
3368 | kfree(bmp); | |
3369 | free_dd: | |
3370 | kfree(dd_data); | |
3371 | no_dd_data: | |
3372 | /* make error code available to userspace */ | |
3373 | job->reply->result = rc; | |
3374 | job->dd_data = NULL; | |
3375 | return rc; | |
3376 | } | |
3b5dd52a JS |
3377 | /** |
3378 | * lpfc_bsg_hst_vendor - process a vendor-specific fc_bsg_job | |
3379 | * @job: fc_bsg_job to handle | |
3380 | **/ | |
3381 | static int | |
3382 | lpfc_bsg_hst_vendor(struct fc_bsg_job *job) | |
3383 | { | |
3384 | int command = job->request->rqst_data.h_vendor.vendor_cmd[0]; | |
3385 | int rc; | |
3386 | ||
3387 | switch (command) { | |
3388 | case LPFC_BSG_VENDOR_SET_CT_EVENT: | |
3389 | rc = lpfc_bsg_hba_set_event(job); | |
3390 | break; | |
3391 | case LPFC_BSG_VENDOR_GET_CT_EVENT: | |
3392 | rc = lpfc_bsg_hba_get_event(job); | |
3393 | break; | |
3394 | case LPFC_BSG_VENDOR_SEND_MGMT_RESP: | |
3395 | rc = lpfc_bsg_send_mgmt_rsp(job); | |
3396 | break; | |
3397 | case LPFC_BSG_VENDOR_DIAG_MODE: | |
3398 | rc = lpfc_bsg_diag_mode(job); | |
3399 | break; | |
3400 | case LPFC_BSG_VENDOR_DIAG_TEST: | |
3401 | rc = lpfc_bsg_diag_test(job); | |
3402 | break; | |
3403 | case LPFC_BSG_VENDOR_GET_MGMT_REV: | |
3404 | rc = lpfc_bsg_get_dfc_rev(job); | |
3405 | break; | |
3406 | case LPFC_BSG_VENDOR_MBOX: | |
3407 | rc = lpfc_bsg_mbox_cmd(job); | |
3408 | break; | |
e2aed29f JS |
3409 | case LPFC_BSG_VENDOR_MENLO_CMD: |
3410 | case LPFC_BSG_VENDOR_MENLO_DATA: | |
3411 | rc = lpfc_menlo_cmd(job); | |
3412 | break; | |
3b5dd52a JS |
3413 | default: |
3414 | rc = -EINVAL; | |
3415 | job->reply->reply_payload_rcv_len = 0; | |
3416 | /* make error code available to userspace */ | |
3417 | job->reply->result = rc; | |
3418 | break; | |
3419 | } | |
3420 | ||
3421 | return rc; | |
3422 | } | |
3423 | ||
3424 | /** | |
3425 | * lpfc_bsg_request - handle a bsg request from the FC transport | |
3426 | * @job: fc_bsg_job to handle | |
3427 | **/ | |
3428 | int | |
3429 | lpfc_bsg_request(struct fc_bsg_job *job) | |
3430 | { | |
3431 | uint32_t msgcode; | |
3432 | int rc; | |
3433 | ||
3434 | msgcode = job->request->msgcode; | |
3435 | switch (msgcode) { | |
3436 | case FC_BSG_HST_VENDOR: | |
3437 | rc = lpfc_bsg_hst_vendor(job); | |
3438 | break; | |
3439 | case FC_BSG_RPT_ELS: | |
3440 | rc = lpfc_bsg_rport_els(job); | |
3441 | break; | |
3442 | case FC_BSG_RPT_CT: | |
3443 | rc = lpfc_bsg_send_mgmt_cmd(job); | |
3444 | break; | |
3445 | default: | |
3446 | rc = -EINVAL; | |
3447 | job->reply->reply_payload_rcv_len = 0; | |
3448 | /* make error code available to userspace */ | |
3449 | job->reply->result = rc; | |
3450 | break; | |
3451 | } | |
3452 | ||
3453 | return rc; | |
3454 | } | |
3455 | ||
3456 | /** | |
3457 | * lpfc_bsg_timeout - handle timeout of a bsg request from the FC transport | |
3458 | * @job: fc_bsg_job that has timed out | |
3459 | * | |
3460 | * This function just aborts the job's IOCB. The aborted IOCB will return to | |
3461 | * the waiting function which will handle passing the error back to userspace | |
3462 | **/ | |
3463 | int | |
3464 | lpfc_bsg_timeout(struct fc_bsg_job *job) | |
3465 | { | |
3466 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; | |
3467 | struct lpfc_hba *phba = vport->phba; | |
3468 | struct lpfc_iocbq *cmdiocb; | |
3469 | struct lpfc_bsg_event *evt; | |
3470 | struct lpfc_bsg_iocb *iocb; | |
3471 | struct lpfc_bsg_mbox *mbox; | |
e2aed29f | 3472 | struct lpfc_bsg_menlo *menlo; |
3b5dd52a JS |
3473 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; |
3474 | struct bsg_job_data *dd_data; | |
3475 | unsigned long flags; | |
3476 | ||
3477 | spin_lock_irqsave(&phba->ct_ev_lock, flags); | |
3478 | dd_data = (struct bsg_job_data *)job->dd_data; | |
3479 | /* timeout and completion crossed paths if no dd_data */ | |
3480 | if (!dd_data) { | |
3481 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
3482 | return 0; | |
4cc0e56e JS |
3483 | } |
3484 | ||
3485 | switch (dd_data->type) { | |
3486 | case TYPE_IOCB: | |
3487 | iocb = &dd_data->context_un.iocb; | |
3488 | cmdiocb = iocb->cmdiocbq; | |
3489 | /* hint to completion handler that the job timed out */ | |
3490 | job->reply->result = -EAGAIN; | |
3491 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
3492 | /* this will call our completion handler */ | |
3493 | spin_lock_irq(&phba->hbalock); | |
f1c3b0fc | 3494 | lpfc_sli_issue_abort_iotag(phba, pring, cmdiocb); |
4cc0e56e JS |
3495 | spin_unlock_irq(&phba->hbalock); |
3496 | break; | |
3497 | case TYPE_EVT: | |
3498 | evt = dd_data->context_un.evt; | |
3499 | /* this event has no job anymore */ | |
3500 | evt->set_job = NULL; | |
3501 | job->dd_data = NULL; | |
3502 | job->reply->reply_payload_rcv_len = 0; | |
3503 | /* Return -EAGAIN which is our way of signallying the | |
3504 | * app to retry. | |
3505 | */ | |
3506 | job->reply->result = -EAGAIN; | |
3507 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
3508 | job->job_done(job); | |
3509 | break; | |
3b5dd52a JS |
3510 | case TYPE_MBOX: |
3511 | mbox = &dd_data->context_un.mbox; | |
3512 | /* this mbox has no job anymore */ | |
3513 | mbox->set_job = NULL; | |
3514 | job->dd_data = NULL; | |
3515 | job->reply->reply_payload_rcv_len = 0; | |
3516 | job->reply->result = -EAGAIN; | |
7a470277 | 3517 | /* the mbox completion handler can now be run */ |
3b5dd52a JS |
3518 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
3519 | job->job_done(job); | |
3520 | break; | |
e2aed29f JS |
3521 | case TYPE_MENLO: |
3522 | menlo = &dd_data->context_un.menlo; | |
3523 | cmdiocb = menlo->cmdiocbq; | |
3524 | /* hint to completion handler that the job timed out */ | |
3525 | job->reply->result = -EAGAIN; | |
3526 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
3527 | /* this will call our completion handler */ | |
3528 | spin_lock_irq(&phba->hbalock); | |
3529 | lpfc_sli_issue_abort_iotag(phba, pring, cmdiocb); | |
3530 | spin_unlock_irq(&phba->hbalock); | |
3531 | break; | |
4cc0e56e JS |
3532 | default: |
3533 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); | |
3534 | break; | |
3535 | } | |
f1c3b0fc | 3536 | |
4cc0e56e JS |
3537 | /* scsi transport fc fc_bsg_job_timeout expects a zero return code, |
3538 | * otherwise an error message will be displayed on the console | |
3539 | * so always return success (zero) | |
3540 | */ | |
f1c3b0fc JS |
3541 | return 0; |
3542 | } |