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dea3101e JB |
1 | /******************************************************************* |
2 | * This file is part of the Emulex Linux Device Driver for * | |
c44ce173 JSEC |
3 | * Fibre Channel Host Bus Adapters. * |
4 | * Copyright (C) 2004-2005 Emulex. All rights reserved. * | |
5 | * EMULEX and SLI are trademarks of Emulex. * | |
dea3101e | 6 | * www.emulex.com * |
c44ce173 | 7 | * Portions Copyright (C) 2004-2005 Christoph Hellwig * |
dea3101e JB |
8 | * * |
9 | * This program is free software; you can redistribute it and/or * | |
c44ce173 JSEC |
10 | * modify it under the terms of version 2 of the GNU General * |
11 | * Public License as published by the Free Software Foundation. * | |
12 | * This program is distributed in the hope that it will be useful. * | |
13 | * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * | |
14 | * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * | |
15 | * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * | |
16 | * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * | |
17 | * TO BE LEGALLY INVALID. See the GNU General Public License for * | |
18 | * more details, a copy of which can be found in the file COPYING * | |
19 | * included with this package. * | |
dea3101e JB |
20 | *******************************************************************/ |
21 | ||
dea3101e JB |
22 | #include <linux/blkdev.h> |
23 | #include <linux/pci.h> | |
24 | #include <linux/interrupt.h> | |
25 | ||
91886523 | 26 | #include <scsi/scsi.h> |
dea3101e JB |
27 | #include <scsi/scsi_device.h> |
28 | #include <scsi/scsi_host.h> | |
29 | #include <scsi/scsi_transport_fc.h> | |
30 | ||
31 | #include "lpfc_hw.h" | |
32 | #include "lpfc_sli.h" | |
33 | #include "lpfc_disc.h" | |
34 | #include "lpfc_scsi.h" | |
35 | #include "lpfc.h" | |
36 | #include "lpfc_logmsg.h" | |
37 | #include "lpfc_crtn.h" | |
38 | ||
39 | static int lpfc_els_retry(struct lpfc_hba *, struct lpfc_iocbq *, | |
40 | struct lpfc_iocbq *); | |
41 | static int lpfc_max_els_tries = 3; | |
42 | ||
43 | static int | |
44 | lpfc_els_chk_latt(struct lpfc_hba * phba) | |
45 | { | |
46 | struct lpfc_sli *psli; | |
47 | LPFC_MBOXQ_t *mbox; | |
48 | uint32_t ha_copy; | |
49 | int rc; | |
50 | ||
51 | psli = &phba->sli; | |
52 | ||
53 | if ((phba->hba_state >= LPFC_HBA_READY) || | |
54 | (phba->hba_state == LPFC_LINK_DOWN)) | |
55 | return 0; | |
56 | ||
57 | /* Read the HBA Host Attention Register */ | |
58 | spin_lock_irq(phba->host->host_lock); | |
59 | ha_copy = readl(phba->HAregaddr); | |
60 | spin_unlock_irq(phba->host->host_lock); | |
61 | ||
62 | if (!(ha_copy & HA_LATT)) | |
63 | return 0; | |
64 | ||
65 | /* Pending Link Event during Discovery */ | |
66 | lpfc_printf_log(phba, KERN_WARNING, LOG_DISCOVERY, | |
67 | "%d:0237 Pending Link Event during " | |
68 | "Discovery: State x%x\n", | |
69 | phba->brd_no, phba->hba_state); | |
70 | ||
71 | /* CLEAR_LA should re-enable link attention events and | |
72 | * we should then imediately take a LATT event. The | |
73 | * LATT processing should call lpfc_linkdown() which | |
74 | * will cleanup any left over in-progress discovery | |
75 | * events. | |
76 | */ | |
77 | spin_lock_irq(phba->host->host_lock); | |
78 | phba->fc_flag |= FC_ABORT_DISCOVERY; | |
79 | spin_unlock_irq(phba->host->host_lock); | |
80 | ||
81 | if (phba->hba_state != LPFC_CLEAR_LA) { | |
82 | if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) { | |
83 | phba->hba_state = LPFC_CLEAR_LA; | |
84 | lpfc_clear_la(phba, mbox); | |
85 | mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la; | |
86 | rc = lpfc_sli_issue_mbox (phba, mbox, | |
87 | (MBX_NOWAIT | MBX_STOP_IOCB)); | |
88 | if (rc == MBX_NOT_FINISHED) { | |
89 | mempool_free(mbox, phba->mbox_mem_pool); | |
90 | phba->hba_state = LPFC_HBA_ERROR; | |
91 | } | |
92 | } | |
93 | } | |
94 | ||
95 | return (1); | |
96 | ||
97 | } | |
98 | ||
99 | static struct lpfc_iocbq * | |
100 | lpfc_prep_els_iocb(struct lpfc_hba * phba, | |
101 | uint8_t expectRsp, | |
102 | uint16_t cmdSize, | |
103 | uint8_t retry, struct lpfc_nodelist * ndlp, uint32_t elscmd) | |
104 | { | |
dea3101e | 105 | struct lpfc_sli_ring *pring; |
0bd4ca25 | 106 | struct lpfc_iocbq *elsiocb; |
dea3101e JB |
107 | struct lpfc_dmabuf *pcmd, *prsp, *pbuflist; |
108 | struct ulp_bde64 *bpl; | |
109 | IOCB_t *icmd; | |
110 | ||
111 | pring = &phba->sli.ring[LPFC_ELS_RING]; | |
112 | ||
113 | if (phba->hba_state < LPFC_LINK_UP) | |
114 | return NULL; | |
115 | ||
dea3101e JB |
116 | /* Allocate buffer for command iocb */ |
117 | spin_lock_irq(phba->host->host_lock); | |
0bd4ca25 | 118 | elsiocb = lpfc_sli_get_iocbq(phba); |
dea3101e JB |
119 | spin_unlock_irq(phba->host->host_lock); |
120 | ||
121 | if (elsiocb == NULL) | |
122 | return NULL; | |
dea3101e JB |
123 | icmd = &elsiocb->iocb; |
124 | ||
125 | /* fill in BDEs for command */ | |
126 | /* Allocate buffer for command payload */ | |
127 | if (((pcmd = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL)) == 0) || | |
128 | ((pcmd->virt = lpfc_mbuf_alloc(phba, | |
129 | MEM_PRI, &(pcmd->phys))) == 0)) { | |
c9475cb0 | 130 | kfree(pcmd); |
dea3101e | 131 | |
604a3e30 JB |
132 | spin_lock_irq(phba->host->host_lock); |
133 | lpfc_sli_release_iocbq(phba, elsiocb); | |
134 | spin_unlock_irq(phba->host->host_lock); | |
dea3101e JB |
135 | return NULL; |
136 | } | |
137 | ||
138 | INIT_LIST_HEAD(&pcmd->list); | |
139 | ||
140 | /* Allocate buffer for response payload */ | |
141 | if (expectRsp) { | |
142 | prsp = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); | |
143 | if (prsp) | |
144 | prsp->virt = lpfc_mbuf_alloc(phba, MEM_PRI, | |
145 | &prsp->phys); | |
146 | if (prsp == 0 || prsp->virt == 0) { | |
c9475cb0 | 147 | kfree(prsp); |
dea3101e JB |
148 | lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys); |
149 | kfree(pcmd); | |
604a3e30 JB |
150 | spin_lock_irq(phba->host->host_lock); |
151 | lpfc_sli_release_iocbq(phba, elsiocb); | |
152 | spin_unlock_irq(phba->host->host_lock); | |
dea3101e JB |
153 | return NULL; |
154 | } | |
155 | INIT_LIST_HEAD(&prsp->list); | |
156 | } else { | |
157 | prsp = NULL; | |
158 | } | |
159 | ||
160 | /* Allocate buffer for Buffer ptr list */ | |
161 | pbuflist = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); | |
162 | if (pbuflist) | |
163 | pbuflist->virt = lpfc_mbuf_alloc(phba, MEM_PRI, | |
164 | &pbuflist->phys); | |
165 | if (pbuflist == 0 || pbuflist->virt == 0) { | |
604a3e30 JB |
166 | spin_lock_irq(phba->host->host_lock); |
167 | lpfc_sli_release_iocbq(phba, elsiocb); | |
168 | spin_unlock_irq(phba->host->host_lock); | |
dea3101e JB |
169 | lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys); |
170 | lpfc_mbuf_free(phba, prsp->virt, prsp->phys); | |
171 | kfree(pcmd); | |
172 | kfree(prsp); | |
c9475cb0 | 173 | kfree(pbuflist); |
dea3101e JB |
174 | return NULL; |
175 | } | |
176 | ||
177 | INIT_LIST_HEAD(&pbuflist->list); | |
178 | ||
179 | icmd->un.elsreq64.bdl.addrHigh = putPaddrHigh(pbuflist->phys); | |
180 | icmd->un.elsreq64.bdl.addrLow = putPaddrLow(pbuflist->phys); | |
181 | icmd->un.elsreq64.bdl.bdeFlags = BUFF_TYPE_BDL; | |
182 | if (expectRsp) { | |
183 | icmd->un.elsreq64.bdl.bdeSize = (2 * sizeof (struct ulp_bde64)); | |
184 | icmd->un.elsreq64.remoteID = ndlp->nlp_DID; /* DID */ | |
185 | icmd->ulpCommand = CMD_ELS_REQUEST64_CR; | |
186 | } else { | |
187 | icmd->un.elsreq64.bdl.bdeSize = sizeof (struct ulp_bde64); | |
188 | icmd->ulpCommand = CMD_XMIT_ELS_RSP64_CX; | |
189 | } | |
190 | ||
191 | icmd->ulpBdeCount = 1; | |
192 | icmd->ulpLe = 1; | |
193 | icmd->ulpClass = CLASS3; | |
194 | ||
195 | bpl = (struct ulp_bde64 *) pbuflist->virt; | |
196 | bpl->addrLow = le32_to_cpu(putPaddrLow(pcmd->phys)); | |
197 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(pcmd->phys)); | |
198 | bpl->tus.f.bdeSize = cmdSize; | |
199 | bpl->tus.f.bdeFlags = 0; | |
200 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
201 | ||
202 | if (expectRsp) { | |
203 | bpl++; | |
204 | bpl->addrLow = le32_to_cpu(putPaddrLow(prsp->phys)); | |
205 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(prsp->phys)); | |
206 | bpl->tus.f.bdeSize = FCELSSIZE; | |
207 | bpl->tus.f.bdeFlags = BUFF_USE_RCV; | |
208 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
209 | } | |
210 | ||
211 | /* Save for completion so we can release these resources */ | |
212 | elsiocb->context1 = (uint8_t *) ndlp; | |
213 | elsiocb->context2 = (uint8_t *) pcmd; | |
214 | elsiocb->context3 = (uint8_t *) pbuflist; | |
215 | elsiocb->retry = retry; | |
216 | elsiocb->drvrTimeout = (phba->fc_ratov << 1) + LPFC_DRVR_TIMEOUT; | |
217 | ||
218 | if (prsp) { | |
219 | list_add(&prsp->list, &pcmd->list); | |
220 | } | |
221 | ||
222 | if (expectRsp) { | |
223 | /* Xmit ELS command <elsCmd> to remote NPORT <did> */ | |
224 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS, | |
225 | "%d:0116 Xmit ELS command x%x to remote " | |
226 | "NPORT x%x Data: x%x x%x\n", | |
227 | phba->brd_no, elscmd, | |
228 | ndlp->nlp_DID, icmd->ulpIoTag, phba->hba_state); | |
229 | } else { | |
230 | /* Xmit ELS response <elsCmd> to remote NPORT <did> */ | |
231 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS, | |
232 | "%d:0117 Xmit ELS response x%x to remote " | |
233 | "NPORT x%x Data: x%x x%x\n", | |
234 | phba->brd_no, elscmd, | |
235 | ndlp->nlp_DID, icmd->ulpIoTag, cmdSize); | |
236 | } | |
237 | ||
238 | return (elsiocb); | |
239 | } | |
240 | ||
241 | ||
242 | static int | |
243 | lpfc_cmpl_els_flogi_fabric(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp, | |
244 | struct serv_parm *sp, IOCB_t *irsp) | |
245 | { | |
246 | LPFC_MBOXQ_t *mbox; | |
247 | int rc; | |
248 | ||
249 | spin_lock_irq(phba->host->host_lock); | |
250 | phba->fc_flag |= FC_FABRIC; | |
251 | spin_unlock_irq(phba->host->host_lock); | |
252 | ||
253 | phba->fc_edtov = be32_to_cpu(sp->cmn.e_d_tov); | |
254 | if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */ | |
255 | phba->fc_edtov = (phba->fc_edtov + 999999) / 1000000; | |
256 | ||
257 | phba->fc_ratov = (be32_to_cpu(sp->cmn.w2.r_a_tov) + 999) / 1000; | |
258 | ||
259 | if (phba->fc_topology == TOPOLOGY_LOOP) { | |
260 | spin_lock_irq(phba->host->host_lock); | |
261 | phba->fc_flag |= FC_PUBLIC_LOOP; | |
262 | spin_unlock_irq(phba->host->host_lock); | |
263 | } else { | |
264 | /* | |
265 | * If we are a N-port connected to a Fabric, fixup sparam's so | |
266 | * logins to devices on remote loops work. | |
267 | */ | |
268 | phba->fc_sparam.cmn.altBbCredit = 1; | |
269 | } | |
270 | ||
271 | phba->fc_myDID = irsp->un.ulpWord[4] & Mask_DID; | |
272 | memcpy(&ndlp->nlp_portname, &sp->portName, sizeof(struct lpfc_name)); | |
273 | memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof (struct lpfc_name)); | |
274 | ndlp->nlp_class_sup = 0; | |
275 | if (sp->cls1.classValid) | |
276 | ndlp->nlp_class_sup |= FC_COS_CLASS1; | |
277 | if (sp->cls2.classValid) | |
278 | ndlp->nlp_class_sup |= FC_COS_CLASS2; | |
279 | if (sp->cls3.classValid) | |
280 | ndlp->nlp_class_sup |= FC_COS_CLASS3; | |
281 | if (sp->cls4.classValid) | |
282 | ndlp->nlp_class_sup |= FC_COS_CLASS4; | |
283 | ndlp->nlp_maxframe = ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | | |
284 | sp->cmn.bbRcvSizeLsb; | |
285 | memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); | |
286 | ||
287 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
288 | if (!mbox) | |
289 | goto fail; | |
290 | ||
291 | phba->hba_state = LPFC_FABRIC_CFG_LINK; | |
292 | lpfc_config_link(phba, mbox); | |
293 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
294 | ||
295 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT | MBX_STOP_IOCB); | |
296 | if (rc == MBX_NOT_FINISHED) | |
297 | goto fail_free_mbox; | |
298 | ||
299 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
300 | if (!mbox) | |
301 | goto fail; | |
302 | ||
303 | if (lpfc_reg_login(phba, Fabric_DID, (uint8_t *) sp, mbox, 0)) | |
304 | goto fail_free_mbox; | |
305 | ||
306 | /* | |
307 | * set_slim mailbox command needs to execute first, | |
308 | * queue this command to be processed later. | |
309 | */ | |
310 | mbox->mbox_cmpl = lpfc_mbx_cmpl_fabric_reg_login; | |
311 | mbox->context2 = ndlp; | |
312 | ||
313 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT | MBX_STOP_IOCB); | |
314 | if (rc == MBX_NOT_FINISHED) | |
315 | goto fail_free_mbox; | |
316 | ||
317 | return 0; | |
318 | ||
319 | fail_free_mbox: | |
320 | mempool_free(mbox, phba->mbox_mem_pool); | |
321 | fail: | |
322 | return -ENXIO; | |
323 | } | |
324 | ||
325 | /* | |
326 | * We FLOGIed into an NPort, initiate pt2pt protocol | |
327 | */ | |
328 | static int | |
329 | lpfc_cmpl_els_flogi_nport(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp, | |
330 | struct serv_parm *sp) | |
331 | { | |
332 | LPFC_MBOXQ_t *mbox; | |
333 | int rc; | |
334 | ||
335 | spin_lock_irq(phba->host->host_lock); | |
336 | phba->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
337 | spin_unlock_irq(phba->host->host_lock); | |
338 | ||
339 | phba->fc_edtov = FF_DEF_EDTOV; | |
340 | phba->fc_ratov = FF_DEF_RATOV; | |
341 | rc = memcmp(&phba->fc_portname, &sp->portName, | |
342 | sizeof(struct lpfc_name)); | |
343 | if (rc >= 0) { | |
344 | /* This side will initiate the PLOGI */ | |
345 | spin_lock_irq(phba->host->host_lock); | |
346 | phba->fc_flag |= FC_PT2PT_PLOGI; | |
347 | spin_unlock_irq(phba->host->host_lock); | |
348 | ||
349 | /* | |
350 | * N_Port ID cannot be 0, set our to LocalID the other | |
351 | * side will be RemoteID. | |
352 | */ | |
353 | ||
354 | /* not equal */ | |
355 | if (rc) | |
356 | phba->fc_myDID = PT2PT_LocalID; | |
357 | ||
358 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
359 | if (!mbox) | |
360 | goto fail; | |
361 | ||
362 | lpfc_config_link(phba, mbox); | |
363 | ||
364 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
365 | rc = lpfc_sli_issue_mbox(phba, mbox, | |
366 | MBX_NOWAIT | MBX_STOP_IOCB); | |
367 | if (rc == MBX_NOT_FINISHED) { | |
368 | mempool_free(mbox, phba->mbox_mem_pool); | |
369 | goto fail; | |
370 | } | |
371 | mempool_free(ndlp, phba->nlp_mem_pool); | |
372 | ||
373 | ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, PT2PT_RemoteID); | |
374 | if (!ndlp) { | |
375 | /* | |
376 | * Cannot find existing Fabric ndlp, so allocate a | |
377 | * new one | |
378 | */ | |
379 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
380 | if (!ndlp) | |
381 | goto fail; | |
382 | ||
383 | lpfc_nlp_init(phba, ndlp, PT2PT_RemoteID); | |
384 | } | |
385 | ||
386 | memcpy(&ndlp->nlp_portname, &sp->portName, | |
387 | sizeof(struct lpfc_name)); | |
388 | memcpy(&ndlp->nlp_nodename, &sp->nodeName, | |
389 | sizeof(struct lpfc_name)); | |
390 | ndlp->nlp_state = NLP_STE_NPR_NODE; | |
391 | lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST); | |
392 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; | |
393 | } else { | |
394 | /* This side will wait for the PLOGI */ | |
395 | mempool_free( ndlp, phba->nlp_mem_pool); | |
396 | } | |
397 | ||
398 | spin_lock_irq(phba->host->host_lock); | |
399 | phba->fc_flag |= FC_PT2PT; | |
400 | spin_unlock_irq(phba->host->host_lock); | |
401 | ||
402 | /* Start discovery - this should just do CLEAR_LA */ | |
403 | lpfc_disc_start(phba); | |
404 | return 0; | |
405 | fail: | |
406 | return -ENXIO; | |
407 | } | |
408 | ||
409 | static void | |
410 | lpfc_cmpl_els_flogi(struct lpfc_hba * phba, | |
411 | struct lpfc_iocbq * cmdiocb, struct lpfc_iocbq * rspiocb) | |
412 | { | |
413 | IOCB_t *irsp = &rspiocb->iocb; | |
414 | struct lpfc_nodelist *ndlp = cmdiocb->context1; | |
415 | struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp; | |
416 | struct serv_parm *sp; | |
417 | int rc; | |
418 | ||
419 | /* Check to see if link went down during discovery */ | |
420 | if (lpfc_els_chk_latt(phba)) { | |
421 | lpfc_nlp_remove(phba, ndlp); | |
422 | goto out; | |
423 | } | |
424 | ||
425 | if (irsp->ulpStatus) { | |
426 | /* Check for retry */ | |
427 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { | |
428 | /* ELS command is being retried */ | |
429 | goto out; | |
430 | } | |
431 | /* FLOGI failed, so there is no fabric */ | |
432 | spin_lock_irq(phba->host->host_lock); | |
433 | phba->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
434 | spin_unlock_irq(phba->host->host_lock); | |
435 | ||
436 | /* If private loop, then allow max outstandting els to be | |
437 | * LPFC_MAX_DISC_THREADS (32). Scanning in the case of no | |
438 | * alpa map would take too long otherwise. | |
439 | */ | |
440 | if (phba->alpa_map[0] == 0) { | |
441 | phba->cfg_discovery_threads = | |
442 | LPFC_MAX_DISC_THREADS; | |
443 | } | |
444 | ||
445 | /* FLOGI failure */ | |
446 | lpfc_printf_log(phba, | |
447 | KERN_INFO, | |
448 | LOG_ELS, | |
449 | "%d:0100 FLOGI failure Data: x%x x%x\n", | |
450 | phba->brd_no, | |
451 | irsp->ulpStatus, irsp->un.ulpWord[4]); | |
452 | goto flogifail; | |
453 | } | |
454 | ||
455 | /* | |
456 | * The FLogI succeeded. Sync the data for the CPU before | |
457 | * accessing it. | |
458 | */ | |
459 | prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); | |
460 | ||
461 | sp = prsp->virt + sizeof(uint32_t); | |
462 | ||
463 | /* FLOGI completes successfully */ | |
464 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS, | |
465 | "%d:0101 FLOGI completes sucessfully " | |
466 | "Data: x%x x%x x%x x%x\n", | |
467 | phba->brd_no, | |
468 | irsp->un.ulpWord[4], sp->cmn.e_d_tov, | |
469 | sp->cmn.w2.r_a_tov, sp->cmn.edtovResolution); | |
470 | ||
471 | if (phba->hba_state == LPFC_FLOGI) { | |
472 | /* | |
473 | * If Common Service Parameters indicate Nport | |
474 | * we are point to point, if Fport we are Fabric. | |
475 | */ | |
476 | if (sp->cmn.fPort) | |
477 | rc = lpfc_cmpl_els_flogi_fabric(phba, ndlp, sp, irsp); | |
478 | else | |
479 | rc = lpfc_cmpl_els_flogi_nport(phba, ndlp, sp); | |
480 | ||
481 | if (!rc) | |
482 | goto out; | |
483 | } | |
484 | ||
485 | flogifail: | |
486 | lpfc_nlp_remove(phba, ndlp); | |
487 | ||
488 | if (irsp->ulpStatus != IOSTAT_LOCAL_REJECT || | |
489 | (irsp->un.ulpWord[4] != IOERR_SLI_ABORTED && | |
490 | irsp->un.ulpWord[4] != IOERR_SLI_DOWN)) { | |
491 | /* FLOGI failed, so just use loop map to make discovery list */ | |
492 | lpfc_disc_list_loopmap(phba); | |
493 | ||
494 | /* Start discovery */ | |
495 | lpfc_disc_start(phba); | |
496 | } | |
497 | ||
498 | out: | |
499 | lpfc_els_free_iocb(phba, cmdiocb); | |
500 | } | |
501 | ||
502 | static int | |
503 | lpfc_issue_els_flogi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, | |
504 | uint8_t retry) | |
505 | { | |
506 | struct serv_parm *sp; | |
507 | IOCB_t *icmd; | |
508 | struct lpfc_iocbq *elsiocb; | |
509 | struct lpfc_sli_ring *pring; | |
510 | uint8_t *pcmd; | |
511 | uint16_t cmdsize; | |
512 | uint32_t tmo; | |
513 | int rc; | |
514 | ||
515 | pring = &phba->sli.ring[LPFC_ELS_RING]; | |
516 | ||
517 | cmdsize = (sizeof (uint32_t) + sizeof (struct serv_parm)); | |
518 | if ((elsiocb = lpfc_prep_els_iocb(phba, 1, cmdsize, retry, | |
519 | ndlp, ELS_CMD_FLOGI)) == 0) { | |
520 | return (1); | |
521 | } | |
522 | ||
523 | icmd = &elsiocb->iocb; | |
524 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
525 | ||
526 | /* For FLOGI request, remainder of payload is service parameters */ | |
527 | *((uint32_t *) (pcmd)) = ELS_CMD_FLOGI; | |
528 | pcmd += sizeof (uint32_t); | |
529 | memcpy(pcmd, &phba->fc_sparam, sizeof (struct serv_parm)); | |
530 | sp = (struct serv_parm *) pcmd; | |
531 | ||
532 | /* Setup CSPs accordingly for Fabric */ | |
533 | sp->cmn.e_d_tov = 0; | |
534 | sp->cmn.w2.r_a_tov = 0; | |
535 | sp->cls1.classValid = 0; | |
536 | sp->cls2.seqDelivery = 1; | |
537 | sp->cls3.seqDelivery = 1; | |
538 | if (sp->cmn.fcphLow < FC_PH3) | |
539 | sp->cmn.fcphLow = FC_PH3; | |
540 | if (sp->cmn.fcphHigh < FC_PH3) | |
541 | sp->cmn.fcphHigh = FC_PH3; | |
542 | ||
543 | tmo = phba->fc_ratov; | |
544 | phba->fc_ratov = LPFC_DISC_FLOGI_TMO; | |
545 | lpfc_set_disctmo(phba); | |
546 | phba->fc_ratov = tmo; | |
547 | ||
548 | phba->fc_stat.elsXmitFLOGI++; | |
549 | elsiocb->iocb_cmpl = lpfc_cmpl_els_flogi; | |
550 | spin_lock_irq(phba->host->host_lock); | |
551 | rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0); | |
552 | spin_unlock_irq(phba->host->host_lock); | |
553 | if (rc == IOCB_ERROR) { | |
554 | lpfc_els_free_iocb(phba, elsiocb); | |
555 | return (1); | |
556 | } | |
557 | return (0); | |
558 | } | |
559 | ||
560 | int | |
561 | lpfc_els_abort_flogi(struct lpfc_hba * phba) | |
562 | { | |
563 | struct lpfc_sli_ring *pring; | |
564 | struct lpfc_iocbq *iocb, *next_iocb; | |
565 | struct lpfc_nodelist *ndlp; | |
566 | IOCB_t *icmd; | |
567 | ||
568 | /* Abort outstanding I/O on NPort <nlp_DID> */ | |
569 | lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, | |
570 | "%d:0201 Abort outstanding I/O on NPort x%x\n", | |
571 | phba->brd_no, Fabric_DID); | |
572 | ||
573 | pring = &phba->sli.ring[LPFC_ELS_RING]; | |
574 | ||
575 | /* | |
576 | * Check the txcmplq for an iocb that matches the nport the driver is | |
577 | * searching for. | |
578 | */ | |
579 | spin_lock_irq(phba->host->host_lock); | |
580 | list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { | |
581 | icmd = &iocb->iocb; | |
582 | if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR) { | |
583 | ndlp = (struct lpfc_nodelist *)(iocb->context1); | |
584 | if (ndlp && (ndlp->nlp_DID == Fabric_DID)) { | |
585 | list_del(&iocb->list); | |
586 | pring->txcmplq_cnt--; | |
587 | ||
588 | if ((icmd->un.elsreq64.bdl.ulpIoTag32)) { | |
589 | lpfc_sli_issue_abort_iotag32 | |
590 | (phba, pring, iocb); | |
591 | } | |
592 | if (iocb->iocb_cmpl) { | |
593 | icmd->ulpStatus = IOSTAT_LOCAL_REJECT; | |
594 | icmd->un.ulpWord[4] = | |
595 | IOERR_SLI_ABORTED; | |
596 | spin_unlock_irq(phba->host->host_lock); | |
597 | (iocb->iocb_cmpl) (phba, iocb, iocb); | |
598 | spin_lock_irq(phba->host->host_lock); | |
604a3e30 JB |
599 | } else |
600 | lpfc_sli_release_iocbq(phba, iocb); | |
dea3101e JB |
601 | } |
602 | } | |
603 | } | |
604 | spin_unlock_irq(phba->host->host_lock); | |
605 | ||
606 | return 0; | |
607 | } | |
608 | ||
609 | int | |
610 | lpfc_initial_flogi(struct lpfc_hba * phba) | |
611 | { | |
612 | struct lpfc_nodelist *ndlp; | |
613 | ||
614 | /* First look for Fabric ndlp on the unmapped list */ | |
615 | ||
616 | if ((ndlp = | |
617 | lpfc_findnode_did(phba, NLP_SEARCH_UNMAPPED, | |
618 | Fabric_DID)) == 0) { | |
619 | /* Cannot find existing Fabric ndlp, so allocate a new one */ | |
620 | if ((ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL)) | |
621 | == 0) { | |
622 | return (0); | |
623 | } | |
624 | lpfc_nlp_init(phba, ndlp, Fabric_DID); | |
625 | } | |
626 | else { | |
627 | phba->fc_unmap_cnt--; | |
628 | list_del(&ndlp->nlp_listp); | |
629 | spin_lock_irq(phba->host->host_lock); | |
630 | ndlp->nlp_flag &= ~NLP_LIST_MASK; | |
631 | spin_unlock_irq(phba->host->host_lock); | |
632 | } | |
633 | if (lpfc_issue_els_flogi(phba, ndlp, 0)) { | |
634 | mempool_free( ndlp, phba->nlp_mem_pool); | |
635 | } | |
636 | return (1); | |
637 | } | |
638 | ||
639 | static void | |
640 | lpfc_more_plogi(struct lpfc_hba * phba) | |
641 | { | |
642 | int sentplogi; | |
643 | ||
644 | if (phba->num_disc_nodes) | |
645 | phba->num_disc_nodes--; | |
646 | ||
647 | /* Continue discovery with <num_disc_nodes> PLOGIs to go */ | |
648 | lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, | |
649 | "%d:0232 Continue discovery with %d PLOGIs to go " | |
650 | "Data: x%x x%x x%x\n", | |
651 | phba->brd_no, phba->num_disc_nodes, phba->fc_plogi_cnt, | |
652 | phba->fc_flag, phba->hba_state); | |
653 | ||
654 | /* Check to see if there are more PLOGIs to be sent */ | |
655 | if (phba->fc_flag & FC_NLP_MORE) { | |
656 | /* go thru NPR list and issue any remaining ELS PLOGIs */ | |
657 | sentplogi = lpfc_els_disc_plogi(phba); | |
658 | } | |
659 | return; | |
660 | } | |
661 | ||
662 | static void | |
663 | lpfc_cmpl_els_plogi(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb, | |
664 | struct lpfc_iocbq * rspiocb) | |
665 | { | |
666 | IOCB_t *irsp; | |
667 | struct lpfc_sli *psli; | |
668 | struct lpfc_nodelist *ndlp; | |
669 | int disc, rc, did, type; | |
670 | ||
671 | psli = &phba->sli; | |
672 | ||
673 | /* we pass cmdiocb to state machine which needs rspiocb as well */ | |
674 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
675 | ||
676 | irsp = &rspiocb->iocb; | |
677 | ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
678 | spin_lock_irq(phba->host->host_lock); | |
679 | ndlp->nlp_flag &= ~NLP_PLOGI_SND; | |
680 | spin_unlock_irq(phba->host->host_lock); | |
681 | ||
682 | /* Since ndlp can be freed in the disc state machine, note if this node | |
683 | * is being used during discovery. | |
684 | */ | |
685 | disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC); | |
686 | rc = 0; | |
687 | ||
688 | /* PLOGI completes to NPort <nlp_DID> */ | |
689 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS, | |
690 | "%d:0102 PLOGI completes to NPort x%x " | |
691 | "Data: x%x x%x x%x x%x\n", | |
692 | phba->brd_no, ndlp->nlp_DID, irsp->ulpStatus, | |
693 | irsp->un.ulpWord[4], disc, phba->num_disc_nodes); | |
694 | ||
695 | /* Check to see if link went down during discovery */ | |
696 | if (lpfc_els_chk_latt(phba)) { | |
697 | spin_lock_irq(phba->host->host_lock); | |
698 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; | |
699 | spin_unlock_irq(phba->host->host_lock); | |
700 | goto out; | |
701 | } | |
702 | ||
703 | /* ndlp could be freed in DSM, save these values now */ | |
704 | type = ndlp->nlp_type; | |
705 | did = ndlp->nlp_DID; | |
706 | ||
707 | if (irsp->ulpStatus) { | |
708 | /* Check for retry */ | |
709 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { | |
710 | /* ELS command is being retried */ | |
711 | if (disc) { | |
712 | spin_lock_irq(phba->host->host_lock); | |
713 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; | |
714 | spin_unlock_irq(phba->host->host_lock); | |
715 | } | |
716 | goto out; | |
717 | } | |
718 | ||
719 | /* PLOGI failed */ | |
720 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ | |
721 | if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) && | |
722 | ((irsp->un.ulpWord[4] == IOERR_SLI_ABORTED) || | |
6281bfe0 | 723 | (irsp->un.ulpWord[4] == IOERR_LINK_DOWN) || |
dea3101e JB |
724 | (irsp->un.ulpWord[4] == IOERR_SLI_DOWN))) { |
725 | disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC); | |
726 | } | |
727 | else { | |
728 | rc = lpfc_disc_state_machine(phba, ndlp, cmdiocb, | |
729 | NLP_EVT_CMPL_PLOGI); | |
730 | } | |
731 | } else { | |
732 | /* Good status, call state machine */ | |
733 | rc = lpfc_disc_state_machine(phba, ndlp, cmdiocb, | |
734 | NLP_EVT_CMPL_PLOGI); | |
735 | } | |
736 | ||
737 | if (type & NLP_FABRIC) { | |
738 | /* If we cannot login to Nameserver, kick off discovery now */ | |
739 | if ((did == NameServer_DID) && (rc == NLP_STE_FREED_NODE)) { | |
740 | lpfc_disc_start(phba); | |
741 | } | |
742 | goto out; | |
743 | } | |
744 | ||
745 | if (disc && phba->num_disc_nodes) { | |
746 | /* Check to see if there are more PLOGIs to be sent */ | |
747 | lpfc_more_plogi(phba); | |
748 | } | |
749 | ||
750 | if (rc != NLP_STE_FREED_NODE) { | |
751 | spin_lock_irq(phba->host->host_lock); | |
752 | ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; | |
753 | spin_unlock_irq(phba->host->host_lock); | |
754 | } | |
755 | ||
756 | if (phba->num_disc_nodes == 0) { | |
757 | if(disc) { | |
758 | spin_lock_irq(phba->host->host_lock); | |
759 | phba->fc_flag &= ~FC_NDISC_ACTIVE; | |
760 | spin_unlock_irq(phba->host->host_lock); | |
761 | } | |
762 | lpfc_can_disctmo(phba); | |
763 | if (phba->fc_flag & FC_RSCN_MODE) { | |
764 | /* Check to see if more RSCNs came in while we were | |
765 | * processing this one. | |
766 | */ | |
767 | if ((phba->fc_rscn_id_cnt == 0) && | |
768 | (!(phba->fc_flag & FC_RSCN_DISCOVERY))) { | |
769 | spin_lock_irq(phba->host->host_lock); | |
770 | phba->fc_flag &= ~FC_RSCN_MODE; | |
771 | spin_unlock_irq(phba->host->host_lock); | |
772 | } else { | |
773 | lpfc_els_handle_rscn(phba); | |
774 | } | |
775 | } | |
776 | } | |
777 | ||
778 | out: | |
779 | lpfc_els_free_iocb(phba, cmdiocb); | |
780 | return; | |
781 | } | |
782 | ||
783 | int | |
784 | lpfc_issue_els_plogi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, | |
785 | uint8_t retry) | |
786 | { | |
787 | struct serv_parm *sp; | |
788 | IOCB_t *icmd; | |
789 | struct lpfc_iocbq *elsiocb; | |
790 | struct lpfc_sli_ring *pring; | |
791 | struct lpfc_sli *psli; | |
792 | uint8_t *pcmd; | |
793 | uint16_t cmdsize; | |
794 | ||
795 | psli = &phba->sli; | |
796 | pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */ | |
797 | ||
798 | cmdsize = (sizeof (uint32_t) + sizeof (struct serv_parm)); | |
799 | if ((elsiocb = lpfc_prep_els_iocb(phba, 1, cmdsize, retry, | |
800 | ndlp, ELS_CMD_PLOGI)) == 0) { | |
801 | return (1); | |
802 | } | |
803 | ||
804 | icmd = &elsiocb->iocb; | |
805 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
806 | ||
807 | /* For PLOGI request, remainder of payload is service parameters */ | |
808 | *((uint32_t *) (pcmd)) = ELS_CMD_PLOGI; | |
809 | pcmd += sizeof (uint32_t); | |
810 | memcpy(pcmd, &phba->fc_sparam, sizeof (struct serv_parm)); | |
811 | sp = (struct serv_parm *) pcmd; | |
812 | ||
813 | if (sp->cmn.fcphLow < FC_PH_4_3) | |
814 | sp->cmn.fcphLow = FC_PH_4_3; | |
815 | ||
816 | if (sp->cmn.fcphHigh < FC_PH3) | |
817 | sp->cmn.fcphHigh = FC_PH3; | |
818 | ||
819 | phba->fc_stat.elsXmitPLOGI++; | |
820 | elsiocb->iocb_cmpl = lpfc_cmpl_els_plogi; | |
821 | spin_lock_irq(phba->host->host_lock); | |
822 | ndlp->nlp_flag |= NLP_PLOGI_SND; | |
823 | if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) { | |
824 | ndlp->nlp_flag &= ~NLP_PLOGI_SND; | |
825 | spin_unlock_irq(phba->host->host_lock); | |
826 | lpfc_els_free_iocb(phba, elsiocb); | |
827 | return (1); | |
828 | } | |
829 | spin_unlock_irq(phba->host->host_lock); | |
830 | return (0); | |
831 | } | |
832 | ||
833 | static void | |
834 | lpfc_cmpl_els_prli(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb, | |
835 | struct lpfc_iocbq * rspiocb) | |
836 | { | |
837 | IOCB_t *irsp; | |
838 | struct lpfc_sli *psli; | |
839 | struct lpfc_nodelist *ndlp; | |
840 | ||
841 | psli = &phba->sli; | |
842 | /* we pass cmdiocb to state machine which needs rspiocb as well */ | |
843 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
844 | ||
845 | irsp = &(rspiocb->iocb); | |
846 | ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
847 | spin_lock_irq(phba->host->host_lock); | |
848 | ndlp->nlp_flag &= ~NLP_PRLI_SND; | |
849 | spin_unlock_irq(phba->host->host_lock); | |
850 | ||
851 | /* PRLI completes to NPort <nlp_DID> */ | |
852 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS, | |
853 | "%d:0103 PRLI completes to NPort x%x " | |
854 | "Data: x%x x%x x%x\n", | |
855 | phba->brd_no, ndlp->nlp_DID, irsp->ulpStatus, | |
856 | irsp->un.ulpWord[4], phba->num_disc_nodes); | |
857 | ||
858 | phba->fc_prli_sent--; | |
859 | /* Check to see if link went down during discovery */ | |
860 | if (lpfc_els_chk_latt(phba)) | |
861 | goto out; | |
862 | ||
863 | if (irsp->ulpStatus) { | |
864 | /* Check for retry */ | |
865 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { | |
866 | /* ELS command is being retried */ | |
867 | goto out; | |
868 | } | |
869 | /* PRLI failed */ | |
870 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ | |
871 | if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) && | |
872 | ((irsp->un.ulpWord[4] == IOERR_SLI_ABORTED) || | |
6281bfe0 | 873 | (irsp->un.ulpWord[4] == IOERR_LINK_DOWN) || |
dea3101e JB |
874 | (irsp->un.ulpWord[4] == IOERR_SLI_DOWN))) { |
875 | goto out; | |
876 | } | |
877 | else { | |
878 | lpfc_disc_state_machine(phba, ndlp, cmdiocb, | |
879 | NLP_EVT_CMPL_PRLI); | |
880 | } | |
881 | } else { | |
882 | /* Good status, call state machine */ | |
883 | lpfc_disc_state_machine(phba, ndlp, cmdiocb, NLP_EVT_CMPL_PRLI); | |
884 | } | |
885 | ||
886 | out: | |
887 | lpfc_els_free_iocb(phba, cmdiocb); | |
888 | return; | |
889 | } | |
890 | ||
891 | int | |
892 | lpfc_issue_els_prli(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, | |
893 | uint8_t retry) | |
894 | { | |
895 | PRLI *npr; | |
896 | IOCB_t *icmd; | |
897 | struct lpfc_iocbq *elsiocb; | |
898 | struct lpfc_sli_ring *pring; | |
899 | struct lpfc_sli *psli; | |
900 | uint8_t *pcmd; | |
901 | uint16_t cmdsize; | |
902 | ||
903 | psli = &phba->sli; | |
904 | pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */ | |
905 | ||
906 | cmdsize = (sizeof (uint32_t) + sizeof (PRLI)); | |
907 | if ((elsiocb = lpfc_prep_els_iocb(phba, 1, cmdsize, retry, | |
908 | ndlp, ELS_CMD_PRLI)) == 0) { | |
909 | return (1); | |
910 | } | |
911 | ||
912 | icmd = &elsiocb->iocb; | |
913 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
914 | ||
915 | /* For PRLI request, remainder of payload is service parameters */ | |
916 | memset(pcmd, 0, (sizeof (PRLI) + sizeof (uint32_t))); | |
917 | *((uint32_t *) (pcmd)) = ELS_CMD_PRLI; | |
918 | pcmd += sizeof (uint32_t); | |
919 | ||
920 | /* For PRLI, remainder of payload is PRLI parameter page */ | |
921 | npr = (PRLI *) pcmd; | |
922 | /* | |
923 | * If our firmware version is 3.20 or later, | |
924 | * set the following bits for FC-TAPE support. | |
925 | */ | |
926 | if (phba->vpd.rev.feaLevelHigh >= 0x02) { | |
927 | npr->ConfmComplAllowed = 1; | |
928 | npr->Retry = 1; | |
929 | npr->TaskRetryIdReq = 1; | |
930 | } | |
931 | npr->estabImagePair = 1; | |
932 | npr->readXferRdyDis = 1; | |
933 | ||
934 | /* For FCP support */ | |
935 | npr->prliType = PRLI_FCP_TYPE; | |
936 | npr->initiatorFunc = 1; | |
937 | ||
938 | phba->fc_stat.elsXmitPRLI++; | |
939 | elsiocb->iocb_cmpl = lpfc_cmpl_els_prli; | |
940 | spin_lock_irq(phba->host->host_lock); | |
941 | ndlp->nlp_flag |= NLP_PRLI_SND; | |
942 | if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) { | |
943 | ndlp->nlp_flag &= ~NLP_PRLI_SND; | |
944 | spin_unlock_irq(phba->host->host_lock); | |
945 | lpfc_els_free_iocb(phba, elsiocb); | |
946 | return (1); | |
947 | } | |
948 | spin_unlock_irq(phba->host->host_lock); | |
949 | phba->fc_prli_sent++; | |
950 | return (0); | |
951 | } | |
952 | ||
953 | static void | |
954 | lpfc_more_adisc(struct lpfc_hba * phba) | |
955 | { | |
956 | int sentadisc; | |
957 | ||
958 | if (phba->num_disc_nodes) | |
959 | phba->num_disc_nodes--; | |
960 | ||
961 | /* Continue discovery with <num_disc_nodes> ADISCs to go */ | |
962 | lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, | |
963 | "%d:0210 Continue discovery with %d ADISCs to go " | |
964 | "Data: x%x x%x x%x\n", | |
965 | phba->brd_no, phba->num_disc_nodes, phba->fc_adisc_cnt, | |
966 | phba->fc_flag, phba->hba_state); | |
967 | ||
968 | /* Check to see if there are more ADISCs to be sent */ | |
969 | if (phba->fc_flag & FC_NLP_MORE) { | |
970 | lpfc_set_disctmo(phba); | |
971 | ||
972 | /* go thru NPR list and issue any remaining ELS ADISCs */ | |
973 | sentadisc = lpfc_els_disc_adisc(phba); | |
974 | } | |
975 | return; | |
976 | } | |
977 | ||
978 | static void | |
979 | lpfc_rscn_disc(struct lpfc_hba * phba) | |
980 | { | |
981 | /* RSCN discovery */ | |
982 | /* go thru NPR list and issue ELS PLOGIs */ | |
983 | if (phba->fc_npr_cnt) { | |
984 | if (lpfc_els_disc_plogi(phba)) | |
985 | return; | |
986 | } | |
987 | if (phba->fc_flag & FC_RSCN_MODE) { | |
988 | /* Check to see if more RSCNs came in while we were | |
989 | * processing this one. | |
990 | */ | |
991 | if ((phba->fc_rscn_id_cnt == 0) && | |
992 | (!(phba->fc_flag & FC_RSCN_DISCOVERY))) { | |
993 | spin_lock_irq(phba->host->host_lock); | |
994 | phba->fc_flag &= ~FC_RSCN_MODE; | |
995 | spin_unlock_irq(phba->host->host_lock); | |
996 | } else { | |
997 | lpfc_els_handle_rscn(phba); | |
998 | } | |
999 | } | |
1000 | } | |
1001 | ||
1002 | static void | |
1003 | lpfc_cmpl_els_adisc(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb, | |
1004 | struct lpfc_iocbq * rspiocb) | |
1005 | { | |
1006 | IOCB_t *irsp; | |
1007 | struct lpfc_sli *psli; | |
1008 | struct lpfc_nodelist *ndlp; | |
1009 | LPFC_MBOXQ_t *mbox; | |
1010 | int disc, rc; | |
1011 | ||
1012 | psli = &phba->sli; | |
1013 | ||
1014 | /* we pass cmdiocb to state machine which needs rspiocb as well */ | |
1015 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
1016 | ||
1017 | irsp = &(rspiocb->iocb); | |
1018 | ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
1019 | spin_lock_irq(phba->host->host_lock); | |
1020 | ndlp->nlp_flag &= ~NLP_ADISC_SND; | |
1021 | spin_unlock_irq(phba->host->host_lock); | |
1022 | ||
1023 | /* Since ndlp can be freed in the disc state machine, note if this node | |
1024 | * is being used during discovery. | |
1025 | */ | |
1026 | disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC); | |
1027 | ||
1028 | /* ADISC completes to NPort <nlp_DID> */ | |
1029 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS, | |
1030 | "%d:0104 ADISC completes to NPort x%x " | |
1031 | "Data: x%x x%x x%x x%x\n", | |
1032 | phba->brd_no, ndlp->nlp_DID, irsp->ulpStatus, | |
1033 | irsp->un.ulpWord[4], disc, phba->num_disc_nodes); | |
1034 | ||
1035 | /* Check to see if link went down during discovery */ | |
1036 | if (lpfc_els_chk_latt(phba)) { | |
1037 | spin_lock_irq(phba->host->host_lock); | |
1038 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; | |
1039 | spin_unlock_irq(phba->host->host_lock); | |
1040 | goto out; | |
1041 | } | |
1042 | ||
1043 | if (irsp->ulpStatus) { | |
1044 | /* Check for retry */ | |
1045 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { | |
1046 | /* ELS command is being retried */ | |
1047 | if (disc) { | |
1048 | spin_lock_irq(phba->host->host_lock); | |
1049 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; | |
1050 | spin_unlock_irq(phba->host->host_lock); | |
1051 | lpfc_set_disctmo(phba); | |
1052 | } | |
1053 | goto out; | |
1054 | } | |
1055 | /* ADISC failed */ | |
1056 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ | |
1057 | if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) && | |
1058 | ((irsp->un.ulpWord[4] == IOERR_SLI_ABORTED) || | |
6281bfe0 | 1059 | (irsp->un.ulpWord[4] == IOERR_LINK_DOWN) || |
dea3101e JB |
1060 | (irsp->un.ulpWord[4] == IOERR_SLI_DOWN))) { |
1061 | disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC); | |
1062 | } | |
1063 | else { | |
1064 | lpfc_disc_state_machine(phba, ndlp, cmdiocb, | |
1065 | NLP_EVT_CMPL_ADISC); | |
1066 | } | |
1067 | } else { | |
1068 | /* Good status, call state machine */ | |
1069 | lpfc_disc_state_machine(phba, ndlp, cmdiocb, | |
1070 | NLP_EVT_CMPL_ADISC); | |
1071 | } | |
1072 | ||
1073 | if (disc && phba->num_disc_nodes) { | |
1074 | /* Check to see if there are more ADISCs to be sent */ | |
1075 | lpfc_more_adisc(phba); | |
1076 | ||
1077 | /* Check to see if we are done with ADISC authentication */ | |
1078 | if (phba->num_disc_nodes == 0) { | |
1079 | lpfc_can_disctmo(phba); | |
1080 | /* If we get here, there is nothing left to wait for */ | |
1081 | if ((phba->hba_state < LPFC_HBA_READY) && | |
1082 | (phba->hba_state != LPFC_CLEAR_LA)) { | |
1083 | /* Link up discovery */ | |
1084 | if ((mbox = mempool_alloc(phba->mbox_mem_pool, | |
1085 | GFP_KERNEL))) { | |
1086 | phba->hba_state = LPFC_CLEAR_LA; | |
1087 | lpfc_clear_la(phba, mbox); | |
1088 | mbox->mbox_cmpl = | |
1089 | lpfc_mbx_cmpl_clear_la; | |
1090 | rc = lpfc_sli_issue_mbox | |
1091 | (phba, mbox, | |
1092 | (MBX_NOWAIT | MBX_STOP_IOCB)); | |
1093 | if (rc == MBX_NOT_FINISHED) { | |
1094 | mempool_free(mbox, | |
1095 | phba->mbox_mem_pool); | |
1096 | lpfc_disc_flush_list(phba); | |
1097 | psli->ring[(psli->ip_ring)]. | |
1098 | flag &= | |
1099 | ~LPFC_STOP_IOCB_EVENT; | |
1100 | psli->ring[(psli->fcp_ring)]. | |
1101 | flag &= | |
1102 | ~LPFC_STOP_IOCB_EVENT; | |
1103 | psli->ring[(psli->next_ring)]. | |
1104 | flag &= | |
1105 | ~LPFC_STOP_IOCB_EVENT; | |
1106 | phba->hba_state = | |
1107 | LPFC_HBA_READY; | |
1108 | } | |
1109 | } | |
1110 | } else { | |
1111 | lpfc_rscn_disc(phba); | |
1112 | } | |
1113 | } | |
1114 | } | |
1115 | spin_lock_irq(phba->host->host_lock); | |
1116 | ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; | |
1117 | spin_unlock_irq(phba->host->host_lock); | |
1118 | out: | |
1119 | lpfc_els_free_iocb(phba, cmdiocb); | |
1120 | return; | |
1121 | } | |
1122 | ||
1123 | int | |
1124 | lpfc_issue_els_adisc(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, | |
1125 | uint8_t retry) | |
1126 | { | |
1127 | ADISC *ap; | |
1128 | IOCB_t *icmd; | |
1129 | struct lpfc_iocbq *elsiocb; | |
1130 | struct lpfc_sli_ring *pring; | |
1131 | struct lpfc_sli *psli; | |
1132 | uint8_t *pcmd; | |
1133 | uint16_t cmdsize; | |
1134 | ||
1135 | psli = &phba->sli; | |
1136 | pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */ | |
1137 | ||
1138 | cmdsize = (sizeof (uint32_t) + sizeof (ADISC)); | |
1139 | if ((elsiocb = lpfc_prep_els_iocb(phba, 1, cmdsize, retry, | |
1140 | ndlp, ELS_CMD_ADISC)) == 0) { | |
1141 | return (1); | |
1142 | } | |
1143 | ||
1144 | icmd = &elsiocb->iocb; | |
1145 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
1146 | ||
1147 | /* For ADISC request, remainder of payload is service parameters */ | |
1148 | *((uint32_t *) (pcmd)) = ELS_CMD_ADISC; | |
1149 | pcmd += sizeof (uint32_t); | |
1150 | ||
1151 | /* Fill in ADISC payload */ | |
1152 | ap = (ADISC *) pcmd; | |
1153 | ap->hardAL_PA = phba->fc_pref_ALPA; | |
1154 | memcpy(&ap->portName, &phba->fc_portname, sizeof (struct lpfc_name)); | |
1155 | memcpy(&ap->nodeName, &phba->fc_nodename, sizeof (struct lpfc_name)); | |
1156 | ap->DID = be32_to_cpu(phba->fc_myDID); | |
1157 | ||
1158 | phba->fc_stat.elsXmitADISC++; | |
1159 | elsiocb->iocb_cmpl = lpfc_cmpl_els_adisc; | |
1160 | spin_lock_irq(phba->host->host_lock); | |
1161 | ndlp->nlp_flag |= NLP_ADISC_SND; | |
1162 | if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) { | |
1163 | ndlp->nlp_flag &= ~NLP_ADISC_SND; | |
1164 | spin_unlock_irq(phba->host->host_lock); | |
1165 | lpfc_els_free_iocb(phba, elsiocb); | |
1166 | return (1); | |
1167 | } | |
1168 | spin_unlock_irq(phba->host->host_lock); | |
1169 | return (0); | |
1170 | } | |
1171 | ||
1172 | static void | |
1173 | lpfc_cmpl_els_logo(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb, | |
1174 | struct lpfc_iocbq * rspiocb) | |
1175 | { | |
1176 | IOCB_t *irsp; | |
1177 | struct lpfc_sli *psli; | |
1178 | struct lpfc_nodelist *ndlp; | |
1179 | ||
1180 | psli = &phba->sli; | |
1181 | /* we pass cmdiocb to state machine which needs rspiocb as well */ | |
1182 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
1183 | ||
1184 | irsp = &(rspiocb->iocb); | |
1185 | ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
1186 | spin_lock_irq(phba->host->host_lock); | |
1187 | ndlp->nlp_flag &= ~NLP_LOGO_SND; | |
1188 | spin_unlock_irq(phba->host->host_lock); | |
1189 | ||
1190 | /* LOGO completes to NPort <nlp_DID> */ | |
1191 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS, | |
1192 | "%d:0105 LOGO completes to NPort x%x " | |
1193 | "Data: x%x x%x x%x\n", | |
1194 | phba->brd_no, ndlp->nlp_DID, irsp->ulpStatus, | |
1195 | irsp->un.ulpWord[4], phba->num_disc_nodes); | |
1196 | ||
1197 | /* Check to see if link went down during discovery */ | |
1198 | if (lpfc_els_chk_latt(phba)) | |
1199 | goto out; | |
1200 | ||
1201 | if (irsp->ulpStatus) { | |
1202 | /* Check for retry */ | |
1203 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { | |
1204 | /* ELS command is being retried */ | |
1205 | goto out; | |
1206 | } | |
1207 | /* LOGO failed */ | |
1208 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ | |
1209 | if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) && | |
1210 | ((irsp->un.ulpWord[4] == IOERR_SLI_ABORTED) || | |
6281bfe0 | 1211 | (irsp->un.ulpWord[4] == IOERR_LINK_DOWN) || |
dea3101e JB |
1212 | (irsp->un.ulpWord[4] == IOERR_SLI_DOWN))) { |
1213 | goto out; | |
1214 | } | |
1215 | else { | |
1216 | lpfc_disc_state_machine(phba, ndlp, cmdiocb, | |
1217 | NLP_EVT_CMPL_LOGO); | |
1218 | } | |
1219 | } else { | |
1220 | /* Good status, call state machine */ | |
1221 | lpfc_disc_state_machine(phba, ndlp, cmdiocb, NLP_EVT_CMPL_LOGO); | |
1222 | ||
1223 | if (ndlp->nlp_flag & NLP_DELAY_TMO) { | |
1224 | lpfc_unreg_rpi(phba, ndlp); | |
1225 | } | |
1226 | } | |
1227 | ||
1228 | out: | |
1229 | lpfc_els_free_iocb(phba, cmdiocb); | |
1230 | return; | |
1231 | } | |
1232 | ||
1233 | int | |
1234 | lpfc_issue_els_logo(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, | |
1235 | uint8_t retry) | |
1236 | { | |
1237 | IOCB_t *icmd; | |
1238 | struct lpfc_iocbq *elsiocb; | |
1239 | struct lpfc_sli_ring *pring; | |
1240 | struct lpfc_sli *psli; | |
1241 | uint8_t *pcmd; | |
1242 | uint16_t cmdsize; | |
1243 | ||
1244 | psli = &phba->sli; | |
1245 | pring = &psli->ring[LPFC_ELS_RING]; | |
1246 | ||
1247 | cmdsize = 2 * (sizeof (uint32_t) + sizeof (struct lpfc_name)); | |
1248 | if ((elsiocb = lpfc_prep_els_iocb(phba, 1, cmdsize, retry, | |
1249 | ndlp, ELS_CMD_LOGO)) == 0) { | |
1250 | return (1); | |
1251 | } | |
1252 | ||
1253 | icmd = &elsiocb->iocb; | |
1254 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
1255 | *((uint32_t *) (pcmd)) = ELS_CMD_LOGO; | |
1256 | pcmd += sizeof (uint32_t); | |
1257 | ||
1258 | /* Fill in LOGO payload */ | |
1259 | *((uint32_t *) (pcmd)) = be32_to_cpu(phba->fc_myDID); | |
1260 | pcmd += sizeof (uint32_t); | |
1261 | memcpy(pcmd, &phba->fc_portname, sizeof (struct lpfc_name)); | |
1262 | ||
1263 | phba->fc_stat.elsXmitLOGO++; | |
1264 | elsiocb->iocb_cmpl = lpfc_cmpl_els_logo; | |
1265 | spin_lock_irq(phba->host->host_lock); | |
1266 | ndlp->nlp_flag |= NLP_LOGO_SND; | |
1267 | if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) { | |
1268 | ndlp->nlp_flag &= ~NLP_LOGO_SND; | |
1269 | spin_unlock_irq(phba->host->host_lock); | |
1270 | lpfc_els_free_iocb(phba, elsiocb); | |
1271 | return (1); | |
1272 | } | |
1273 | spin_unlock_irq(phba->host->host_lock); | |
1274 | return (0); | |
1275 | } | |
1276 | ||
1277 | static void | |
1278 | lpfc_cmpl_els_cmd(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb, | |
1279 | struct lpfc_iocbq * rspiocb) | |
1280 | { | |
1281 | IOCB_t *irsp; | |
1282 | ||
1283 | irsp = &rspiocb->iocb; | |
1284 | ||
1285 | /* ELS cmd tag <ulpIoTag> completes */ | |
1286 | lpfc_printf_log(phba, | |
1287 | KERN_INFO, | |
1288 | LOG_ELS, | |
1289 | "%d:0106 ELS cmd tag x%x completes Data: x%x x%x\n", | |
1290 | phba->brd_no, | |
1291 | irsp->ulpIoTag, irsp->ulpStatus, irsp->un.ulpWord[4]); | |
1292 | ||
1293 | /* Check to see if link went down during discovery */ | |
1294 | lpfc_els_chk_latt(phba); | |
1295 | lpfc_els_free_iocb(phba, cmdiocb); | |
1296 | return; | |
1297 | } | |
1298 | ||
1299 | int | |
1300 | lpfc_issue_els_scr(struct lpfc_hba * phba, uint32_t nportid, uint8_t retry) | |
1301 | { | |
1302 | IOCB_t *icmd; | |
1303 | struct lpfc_iocbq *elsiocb; | |
1304 | struct lpfc_sli_ring *pring; | |
1305 | struct lpfc_sli *psli; | |
1306 | uint8_t *pcmd; | |
1307 | uint16_t cmdsize; | |
1308 | struct lpfc_nodelist *ndlp; | |
1309 | ||
1310 | psli = &phba->sli; | |
1311 | pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */ | |
1312 | cmdsize = (sizeof (uint32_t) + sizeof (SCR)); | |
1313 | if ((ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL)) == 0) { | |
1314 | return (1); | |
1315 | } | |
1316 | ||
1317 | lpfc_nlp_init(phba, ndlp, nportid); | |
1318 | ||
1319 | if ((elsiocb = lpfc_prep_els_iocb(phba, 1, cmdsize, retry, | |
1320 | ndlp, ELS_CMD_SCR)) == 0) { | |
1321 | mempool_free( ndlp, phba->nlp_mem_pool); | |
1322 | return (1); | |
1323 | } | |
1324 | ||
1325 | icmd = &elsiocb->iocb; | |
1326 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
1327 | ||
1328 | *((uint32_t *) (pcmd)) = ELS_CMD_SCR; | |
1329 | pcmd += sizeof (uint32_t); | |
1330 | ||
1331 | /* For SCR, remainder of payload is SCR parameter page */ | |
1332 | memset(pcmd, 0, sizeof (SCR)); | |
1333 | ((SCR *) pcmd)->Function = SCR_FUNC_FULL; | |
1334 | ||
1335 | phba->fc_stat.elsXmitSCR++; | |
1336 | elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd; | |
1337 | spin_lock_irq(phba->host->host_lock); | |
1338 | if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) { | |
1339 | spin_unlock_irq(phba->host->host_lock); | |
1340 | mempool_free( ndlp, phba->nlp_mem_pool); | |
1341 | lpfc_els_free_iocb(phba, elsiocb); | |
1342 | return (1); | |
1343 | } | |
1344 | spin_unlock_irq(phba->host->host_lock); | |
1345 | mempool_free( ndlp, phba->nlp_mem_pool); | |
1346 | return (0); | |
1347 | } | |
1348 | ||
1349 | static int | |
1350 | lpfc_issue_els_farpr(struct lpfc_hba * phba, uint32_t nportid, uint8_t retry) | |
1351 | { | |
1352 | IOCB_t *icmd; | |
1353 | struct lpfc_iocbq *elsiocb; | |
1354 | struct lpfc_sli_ring *pring; | |
1355 | struct lpfc_sli *psli; | |
1356 | FARP *fp; | |
1357 | uint8_t *pcmd; | |
1358 | uint32_t *lp; | |
1359 | uint16_t cmdsize; | |
1360 | struct lpfc_nodelist *ondlp; | |
1361 | struct lpfc_nodelist *ndlp; | |
1362 | ||
1363 | psli = &phba->sli; | |
1364 | pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */ | |
1365 | cmdsize = (sizeof (uint32_t) + sizeof (FARP)); | |
1366 | if ((ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL)) == 0) { | |
1367 | return (1); | |
1368 | } | |
1369 | lpfc_nlp_init(phba, ndlp, nportid); | |
1370 | ||
1371 | if ((elsiocb = lpfc_prep_els_iocb(phba, 1, cmdsize, retry, | |
1372 | ndlp, ELS_CMD_RNID)) == 0) { | |
1373 | mempool_free( ndlp, phba->nlp_mem_pool); | |
1374 | return (1); | |
1375 | } | |
1376 | ||
1377 | icmd = &elsiocb->iocb; | |
1378 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
1379 | ||
1380 | *((uint32_t *) (pcmd)) = ELS_CMD_FARPR; | |
1381 | pcmd += sizeof (uint32_t); | |
1382 | ||
1383 | /* Fill in FARPR payload */ | |
1384 | fp = (FARP *) (pcmd); | |
1385 | memset(fp, 0, sizeof (FARP)); | |
1386 | lp = (uint32_t *) pcmd; | |
1387 | *lp++ = be32_to_cpu(nportid); | |
1388 | *lp++ = be32_to_cpu(phba->fc_myDID); | |
1389 | fp->Rflags = 0; | |
1390 | fp->Mflags = (FARP_MATCH_PORT | FARP_MATCH_NODE); | |
1391 | ||
1392 | memcpy(&fp->RportName, &phba->fc_portname, sizeof (struct lpfc_name)); | |
1393 | memcpy(&fp->RnodeName, &phba->fc_nodename, sizeof (struct lpfc_name)); | |
1394 | if ((ondlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, nportid))) { | |
1395 | memcpy(&fp->OportName, &ondlp->nlp_portname, | |
1396 | sizeof (struct lpfc_name)); | |
1397 | memcpy(&fp->OnodeName, &ondlp->nlp_nodename, | |
1398 | sizeof (struct lpfc_name)); | |
1399 | } | |
1400 | ||
1401 | phba->fc_stat.elsXmitFARPR++; | |
1402 | elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd; | |
1403 | spin_lock_irq(phba->host->host_lock); | |
1404 | if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) { | |
1405 | spin_unlock_irq(phba->host->host_lock); | |
1406 | mempool_free( ndlp, phba->nlp_mem_pool); | |
1407 | lpfc_els_free_iocb(phba, elsiocb); | |
1408 | return (1); | |
1409 | } | |
1410 | spin_unlock_irq(phba->host->host_lock); | |
1411 | mempool_free( ndlp, phba->nlp_mem_pool); | |
1412 | return (0); | |
1413 | } | |
1414 | ||
1415 | void | |
1416 | lpfc_els_retry_delay(unsigned long ptr) | |
1417 | { | |
1418 | struct lpfc_nodelist *ndlp; | |
1419 | struct lpfc_hba *phba; | |
1420 | unsigned long iflag; | |
1421 | struct lpfc_work_evt *evtp; | |
1422 | ||
1423 | ndlp = (struct lpfc_nodelist *)ptr; | |
1424 | phba = ndlp->nlp_phba; | |
1425 | evtp = &ndlp->els_retry_evt; | |
1426 | ||
1427 | spin_lock_irqsave(phba->host->host_lock, iflag); | |
1428 | if (!list_empty(&evtp->evt_listp)) { | |
1429 | spin_unlock_irqrestore(phba->host->host_lock, iflag); | |
1430 | return; | |
1431 | } | |
1432 | ||
1433 | evtp->evt_arg1 = ndlp; | |
1434 | evtp->evt = LPFC_EVT_ELS_RETRY; | |
1435 | list_add_tail(&evtp->evt_listp, &phba->work_list); | |
1436 | if (phba->work_wait) | |
1437 | wake_up(phba->work_wait); | |
1438 | ||
1439 | spin_unlock_irqrestore(phba->host->host_lock, iflag); | |
1440 | return; | |
1441 | } | |
1442 | ||
1443 | void | |
1444 | lpfc_els_retry_delay_handler(struct lpfc_nodelist *ndlp) | |
1445 | { | |
1446 | struct lpfc_hba *phba; | |
1447 | uint32_t cmd; | |
1448 | uint32_t did; | |
1449 | uint8_t retry; | |
1450 | ||
1451 | phba = ndlp->nlp_phba; | |
1452 | spin_lock_irq(phba->host->host_lock); | |
1453 | did = (uint32_t) (ndlp->nlp_DID); | |
1454 | cmd = (uint32_t) (ndlp->nlp_last_elscmd); | |
1455 | ||
1456 | if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { | |
1457 | spin_unlock_irq(phba->host->host_lock); | |
1458 | return; | |
1459 | } | |
1460 | ||
1461 | ndlp->nlp_flag &= ~NLP_DELAY_TMO; | |
1462 | spin_unlock_irq(phba->host->host_lock); | |
1463 | retry = ndlp->nlp_retry; | |
1464 | ||
1465 | switch (cmd) { | |
1466 | case ELS_CMD_FLOGI: | |
1467 | lpfc_issue_els_flogi(phba, ndlp, retry); | |
1468 | break; | |
1469 | case ELS_CMD_PLOGI: | |
1470 | ndlp->nlp_state = NLP_STE_PLOGI_ISSUE; | |
1471 | lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST); | |
1472 | lpfc_issue_els_plogi(phba, ndlp, retry); | |
1473 | break; | |
1474 | case ELS_CMD_ADISC: | |
1475 | ndlp->nlp_state = NLP_STE_ADISC_ISSUE; | |
1476 | lpfc_nlp_list(phba, ndlp, NLP_ADISC_LIST); | |
1477 | lpfc_issue_els_adisc(phba, ndlp, retry); | |
1478 | break; | |
1479 | case ELS_CMD_PRLI: | |
1480 | ndlp->nlp_state = NLP_STE_PRLI_ISSUE; | |
1481 | lpfc_nlp_list(phba, ndlp, NLP_PRLI_LIST); | |
1482 | lpfc_issue_els_prli(phba, ndlp, retry); | |
1483 | break; | |
1484 | case ELS_CMD_LOGO: | |
1485 | ndlp->nlp_state = NLP_STE_NPR_NODE; | |
1486 | lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST); | |
1487 | lpfc_issue_els_logo(phba, ndlp, retry); | |
1488 | break; | |
1489 | } | |
1490 | return; | |
1491 | } | |
1492 | ||
1493 | static int | |
1494 | lpfc_els_retry(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb, | |
1495 | struct lpfc_iocbq * rspiocb) | |
1496 | { | |
1497 | IOCB_t *irsp; | |
1498 | struct lpfc_dmabuf *pcmd; | |
1499 | struct lpfc_nodelist *ndlp; | |
1500 | uint32_t *elscmd; | |
1501 | struct ls_rjt stat; | |
1502 | int retry, maxretry; | |
1503 | int delay; | |
1504 | uint32_t cmd; | |
1505 | ||
1506 | retry = 0; | |
1507 | delay = 0; | |
1508 | maxretry = lpfc_max_els_tries; | |
1509 | irsp = &rspiocb->iocb; | |
1510 | ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
1511 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
1512 | cmd = 0; | |
1513 | /* Note: context2 may be 0 for internal driver abort | |
1514 | * of delays ELS command. | |
1515 | */ | |
1516 | ||
1517 | if (pcmd && pcmd->virt) { | |
1518 | elscmd = (uint32_t *) (pcmd->virt); | |
1519 | cmd = *elscmd++; | |
1520 | } | |
1521 | ||
1522 | switch (irsp->ulpStatus) { | |
1523 | case IOSTAT_FCP_RSP_ERROR: | |
1524 | case IOSTAT_REMOTE_STOP: | |
1525 | break; | |
1526 | ||
1527 | case IOSTAT_LOCAL_REJECT: | |
1528 | switch ((irsp->un.ulpWord[4] & 0xff)) { | |
1529 | case IOERR_LOOP_OPEN_FAILURE: | |
1530 | if (cmd == ELS_CMD_PLOGI) { | |
1531 | if (cmdiocb->retry == 0) { | |
1532 | delay = 1; | |
1533 | } | |
1534 | } | |
1535 | retry = 1; | |
1536 | break; | |
1537 | ||
1538 | case IOERR_SEQUENCE_TIMEOUT: | |
1539 | retry = 1; | |
1540 | if ((cmd == ELS_CMD_FLOGI) | |
1541 | && (phba->fc_topology != TOPOLOGY_LOOP)) { | |
1542 | delay = 1; | |
1543 | maxretry = 48; | |
1544 | } | |
1545 | break; | |
1546 | ||
1547 | case IOERR_NO_RESOURCES: | |
1548 | if (cmd == ELS_CMD_PLOGI) { | |
1549 | delay = 1; | |
1550 | } | |
1551 | retry = 1; | |
1552 | break; | |
1553 | ||
1554 | case IOERR_INVALID_RPI: | |
1555 | retry = 1; | |
1556 | break; | |
1557 | } | |
1558 | break; | |
1559 | ||
1560 | case IOSTAT_NPORT_RJT: | |
1561 | case IOSTAT_FABRIC_RJT: | |
1562 | if (irsp->un.ulpWord[4] & RJT_UNAVAIL_TEMP) { | |
1563 | retry = 1; | |
1564 | break; | |
1565 | } | |
1566 | break; | |
1567 | ||
1568 | case IOSTAT_NPORT_BSY: | |
1569 | case IOSTAT_FABRIC_BSY: | |
1570 | retry = 1; | |
1571 | break; | |
1572 | ||
1573 | case IOSTAT_LS_RJT: | |
1574 | stat.un.lsRjtError = be32_to_cpu(irsp->un.ulpWord[4]); | |
1575 | /* Added for Vendor specifc support | |
1576 | * Just keep retrying for these Rsn / Exp codes | |
1577 | */ | |
1578 | switch (stat.un.b.lsRjtRsnCode) { | |
1579 | case LSRJT_UNABLE_TPC: | |
1580 | if (stat.un.b.lsRjtRsnCodeExp == | |
1581 | LSEXP_CMD_IN_PROGRESS) { | |
1582 | if (cmd == ELS_CMD_PLOGI) { | |
1583 | delay = 1; | |
1584 | maxretry = 48; | |
1585 | } | |
1586 | retry = 1; | |
1587 | break; | |
1588 | } | |
1589 | if (cmd == ELS_CMD_PLOGI) { | |
1590 | delay = 1; | |
1591 | maxretry = lpfc_max_els_tries + 1; | |
1592 | retry = 1; | |
1593 | break; | |
1594 | } | |
1595 | break; | |
1596 | ||
1597 | case LSRJT_LOGICAL_BSY: | |
1598 | if (cmd == ELS_CMD_PLOGI) { | |
1599 | delay = 1; | |
1600 | maxretry = 48; | |
1601 | } | |
1602 | retry = 1; | |
1603 | break; | |
1604 | } | |
1605 | break; | |
1606 | ||
1607 | case IOSTAT_INTERMED_RSP: | |
1608 | case IOSTAT_BA_RJT: | |
1609 | break; | |
1610 | ||
1611 | default: | |
1612 | break; | |
1613 | } | |
1614 | ||
1615 | if (ndlp->nlp_DID == FDMI_DID) { | |
1616 | retry = 1; | |
1617 | } | |
1618 | ||
1619 | if ((++cmdiocb->retry) >= maxretry) { | |
1620 | phba->fc_stat.elsRetryExceeded++; | |
1621 | retry = 0; | |
1622 | } | |
1623 | ||
1624 | if (retry) { | |
1625 | ||
1626 | /* Retry ELS command <elsCmd> to remote NPORT <did> */ | |
1627 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS, | |
1628 | "%d:0107 Retry ELS command x%x to remote " | |
1629 | "NPORT x%x Data: x%x x%x\n", | |
1630 | phba->brd_no, | |
1631 | cmd, ndlp->nlp_DID, cmdiocb->retry, delay); | |
1632 | ||
1633 | if ((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_ADISC)) { | |
1634 | /* If discovery / RSCN timer is running, reset it */ | |
1635 | if (timer_pending(&phba->fc_disctmo) || | |
1636 | (phba->fc_flag & FC_RSCN_MODE)) { | |
1637 | lpfc_set_disctmo(phba); | |
1638 | } | |
1639 | } | |
1640 | ||
1641 | phba->fc_stat.elsXmitRetry++; | |
1642 | if (delay) { | |
1643 | phba->fc_stat.elsDelayRetry++; | |
1644 | ndlp->nlp_retry = cmdiocb->retry; | |
1645 | ||
1646 | mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ); | |
1647 | ndlp->nlp_flag |= NLP_DELAY_TMO; | |
1648 | ||
1649 | ndlp->nlp_state = NLP_STE_NPR_NODE; | |
1650 | lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST); | |
1651 | ndlp->nlp_last_elscmd = cmd; | |
1652 | ||
1653 | return (1); | |
1654 | } | |
1655 | switch (cmd) { | |
1656 | case ELS_CMD_FLOGI: | |
1657 | lpfc_issue_els_flogi(phba, ndlp, cmdiocb->retry); | |
1658 | return (1); | |
1659 | case ELS_CMD_PLOGI: | |
1660 | ndlp->nlp_state = NLP_STE_PLOGI_ISSUE; | |
1661 | lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST); | |
1662 | lpfc_issue_els_plogi(phba, ndlp, cmdiocb->retry); | |
1663 | return (1); | |
1664 | case ELS_CMD_ADISC: | |
1665 | ndlp->nlp_state = NLP_STE_ADISC_ISSUE; | |
1666 | lpfc_nlp_list(phba, ndlp, NLP_ADISC_LIST); | |
1667 | lpfc_issue_els_adisc(phba, ndlp, cmdiocb->retry); | |
1668 | return (1); | |
1669 | case ELS_CMD_PRLI: | |
1670 | ndlp->nlp_state = NLP_STE_PRLI_ISSUE; | |
1671 | lpfc_nlp_list(phba, ndlp, NLP_PRLI_LIST); | |
1672 | lpfc_issue_els_prli(phba, ndlp, cmdiocb->retry); | |
1673 | return (1); | |
1674 | case ELS_CMD_LOGO: | |
1675 | ndlp->nlp_state = NLP_STE_NPR_NODE; | |
1676 | lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST); | |
1677 | lpfc_issue_els_logo(phba, ndlp, cmdiocb->retry); | |
1678 | return (1); | |
1679 | } | |
1680 | } | |
1681 | ||
1682 | /* No retry ELS command <elsCmd> to remote NPORT <did> */ | |
1683 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS, | |
1684 | "%d:0108 No retry ELS command x%x to remote NPORT x%x " | |
1685 | "Data: x%x x%x\n", | |
1686 | phba->brd_no, | |
1687 | cmd, ndlp->nlp_DID, cmdiocb->retry, ndlp->nlp_flag); | |
1688 | ||
1689 | return (0); | |
1690 | } | |
1691 | ||
1692 | int | |
1693 | lpfc_els_free_iocb(struct lpfc_hba * phba, struct lpfc_iocbq * elsiocb) | |
1694 | { | |
1695 | struct lpfc_dmabuf *buf_ptr, *buf_ptr1; | |
1696 | ||
1697 | /* context2 = cmd, context2->next = rsp, context3 = bpl */ | |
1698 | if (elsiocb->context2) { | |
1699 | buf_ptr1 = (struct lpfc_dmabuf *) elsiocb->context2; | |
1700 | /* Free the response before processing the command. */ | |
1701 | if (!list_empty(&buf_ptr1->list)) { | |
1702 | list_remove_head(&buf_ptr1->list, buf_ptr, | |
1703 | struct lpfc_dmabuf, | |
1704 | list); | |
1705 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); | |
1706 | kfree(buf_ptr); | |
1707 | } | |
1708 | lpfc_mbuf_free(phba, buf_ptr1->virt, buf_ptr1->phys); | |
1709 | kfree(buf_ptr1); | |
1710 | } | |
1711 | ||
1712 | if (elsiocb->context3) { | |
1713 | buf_ptr = (struct lpfc_dmabuf *) elsiocb->context3; | |
1714 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); | |
1715 | kfree(buf_ptr); | |
1716 | } | |
1717 | spin_lock_irq(phba->host->host_lock); | |
604a3e30 | 1718 | lpfc_sli_release_iocbq(phba, elsiocb); |
dea3101e JB |
1719 | spin_unlock_irq(phba->host->host_lock); |
1720 | return 0; | |
1721 | } | |
1722 | ||
1723 | static void | |
1724 | lpfc_cmpl_els_logo_acc(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb, | |
1725 | struct lpfc_iocbq * rspiocb) | |
1726 | { | |
1727 | struct lpfc_nodelist *ndlp; | |
1728 | ||
1729 | ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
1730 | ||
1731 | /* ACC to LOGO completes to NPort <nlp_DID> */ | |
1732 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS, | |
1733 | "%d:0109 ACC to LOGO completes to NPort x%x " | |
1734 | "Data: x%x x%x x%x\n", | |
1735 | phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag, | |
1736 | ndlp->nlp_state, ndlp->nlp_rpi); | |
1737 | ||
1738 | spin_lock_irq(phba->host->host_lock); | |
1739 | ndlp->nlp_flag &= ~NLP_LOGO_ACC; | |
1740 | spin_unlock_irq(phba->host->host_lock); | |
1741 | ||
1742 | switch (ndlp->nlp_state) { | |
1743 | case NLP_STE_UNUSED_NODE: /* node is just allocated */ | |
1744 | lpfc_nlp_list(phba, ndlp, NLP_NO_LIST); | |
1745 | break; | |
1746 | case NLP_STE_NPR_NODE: /* NPort Recovery mode */ | |
1747 | lpfc_unreg_rpi(phba, ndlp); | |
1748 | break; | |
1749 | default: | |
1750 | break; | |
1751 | } | |
1752 | lpfc_els_free_iocb(phba, cmdiocb); | |
1753 | return; | |
1754 | } | |
1755 | ||
1756 | static void | |
1757 | lpfc_cmpl_els_acc(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb, | |
1758 | struct lpfc_iocbq * rspiocb) | |
1759 | { | |
1760 | struct lpfc_nodelist *ndlp; | |
1761 | LPFC_MBOXQ_t *mbox = NULL; | |
1762 | ||
1763 | ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
1764 | if (cmdiocb->context_un.mbox) | |
1765 | mbox = cmdiocb->context_un.mbox; | |
1766 | ||
1767 | ||
1768 | /* Check to see if link went down during discovery */ | |
1769 | if ((lpfc_els_chk_latt(phba)) || !ndlp) { | |
1770 | if (mbox) { | |
1771 | mempool_free( mbox, phba->mbox_mem_pool); | |
1772 | } | |
1773 | goto out; | |
1774 | } | |
1775 | ||
1776 | /* ELS response tag <ulpIoTag> completes */ | |
1777 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS, | |
1778 | "%d:0110 ELS response tag x%x completes " | |
1779 | "Data: x%x x%x x%x x%x x%x x%x\n", | |
1780 | phba->brd_no, | |
1781 | cmdiocb->iocb.ulpIoTag, rspiocb->iocb.ulpStatus, | |
1782 | rspiocb->iocb.un.ulpWord[4], ndlp->nlp_DID, | |
1783 | ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi); | |
1784 | ||
1785 | if (mbox) { | |
1786 | if ((rspiocb->iocb.ulpStatus == 0) | |
1787 | && (ndlp->nlp_flag & NLP_ACC_REGLOGIN)) { | |
1788 | /* set_slim mailbox command needs to execute first, | |
1789 | * queue this command to be processed later. | |
1790 | */ | |
1791 | lpfc_unreg_rpi(phba, ndlp); | |
1792 | mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; | |
1793 | mbox->context2 = ndlp; | |
1794 | ndlp->nlp_state = NLP_STE_REG_LOGIN_ISSUE; | |
1795 | lpfc_nlp_list(phba, ndlp, NLP_REGLOGIN_LIST); | |
1796 | if (lpfc_sli_issue_mbox(phba, mbox, | |
1797 | (MBX_NOWAIT | MBX_STOP_IOCB)) | |
1798 | != MBX_NOT_FINISHED) { | |
1799 | goto out; | |
1800 | } | |
1801 | /* NOTE: we should have messages for unsuccessful | |
1802 | reglogin */ | |
1803 | mempool_free( mbox, phba->mbox_mem_pool); | |
1804 | } else { | |
1805 | mempool_free( mbox, phba->mbox_mem_pool); | |
1806 | if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) { | |
1807 | lpfc_nlp_list(phba, ndlp, NLP_NO_LIST); | |
1808 | } | |
1809 | } | |
1810 | } | |
1811 | out: | |
1812 | if (ndlp) { | |
1813 | spin_lock_irq(phba->host->host_lock); | |
1814 | ndlp->nlp_flag &= ~NLP_ACC_REGLOGIN; | |
1815 | spin_unlock_irq(phba->host->host_lock); | |
1816 | } | |
1817 | lpfc_els_free_iocb(phba, cmdiocb); | |
1818 | return; | |
1819 | } | |
1820 | ||
1821 | int | |
1822 | lpfc_els_rsp_acc(struct lpfc_hba * phba, uint32_t flag, | |
1823 | struct lpfc_iocbq * oldiocb, struct lpfc_nodelist * ndlp, | |
1824 | LPFC_MBOXQ_t * mbox, uint8_t newnode) | |
1825 | { | |
1826 | IOCB_t *icmd; | |
1827 | IOCB_t *oldcmd; | |
1828 | struct lpfc_iocbq *elsiocb; | |
1829 | struct lpfc_sli_ring *pring; | |
1830 | struct lpfc_sli *psli; | |
1831 | uint8_t *pcmd; | |
1832 | uint16_t cmdsize; | |
1833 | int rc; | |
1834 | ||
1835 | psli = &phba->sli; | |
1836 | pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */ | |
1837 | oldcmd = &oldiocb->iocb; | |
1838 | ||
1839 | switch (flag) { | |
1840 | case ELS_CMD_ACC: | |
1841 | cmdsize = sizeof (uint32_t); | |
1842 | if ((elsiocb = | |
1843 | lpfc_prep_els_iocb(phba, 0, cmdsize, oldiocb->retry, | |
1844 | ndlp, ELS_CMD_ACC)) == 0) { | |
1845 | return (1); | |
1846 | } | |
1847 | icmd = &elsiocb->iocb; | |
1848 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
1849 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
1850 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
1851 | pcmd += sizeof (uint32_t); | |
1852 | break; | |
1853 | case ELS_CMD_PLOGI: | |
1854 | cmdsize = (sizeof (struct serv_parm) + sizeof (uint32_t)); | |
1855 | if ((elsiocb = | |
1856 | lpfc_prep_els_iocb(phba, 0, cmdsize, oldiocb->retry, | |
1857 | ndlp, ELS_CMD_ACC)) == 0) { | |
1858 | return (1); | |
1859 | } | |
1860 | icmd = &elsiocb->iocb; | |
1861 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
1862 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
1863 | ||
1864 | if (mbox) | |
1865 | elsiocb->context_un.mbox = mbox; | |
1866 | ||
1867 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
1868 | pcmd += sizeof (uint32_t); | |
1869 | memcpy(pcmd, &phba->fc_sparam, sizeof (struct serv_parm)); | |
1870 | break; | |
1871 | default: | |
1872 | return (1); | |
1873 | } | |
1874 | ||
1875 | if (newnode) | |
1876 | elsiocb->context1 = NULL; | |
1877 | ||
1878 | /* Xmit ELS ACC response tag <ulpIoTag> */ | |
1879 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS, | |
1880 | "%d:0128 Xmit ELS ACC response tag x%x " | |
1881 | "Data: x%x x%x x%x x%x x%x\n", | |
1882 | phba->brd_no, | |
1883 | elsiocb->iocb.ulpIoTag, | |
1884 | elsiocb->iocb.ulpContext, ndlp->nlp_DID, | |
1885 | ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi); | |
1886 | ||
1887 | if (ndlp->nlp_flag & NLP_LOGO_ACC) { | |
1888 | elsiocb->iocb_cmpl = lpfc_cmpl_els_logo_acc; | |
1889 | } else { | |
1890 | elsiocb->iocb_cmpl = lpfc_cmpl_els_acc; | |
1891 | } | |
1892 | ||
1893 | phba->fc_stat.elsXmitACC++; | |
1894 | spin_lock_irq(phba->host->host_lock); | |
1895 | rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0); | |
1896 | spin_unlock_irq(phba->host->host_lock); | |
1897 | if (rc == IOCB_ERROR) { | |
1898 | lpfc_els_free_iocb(phba, elsiocb); | |
1899 | return (1); | |
1900 | } | |
1901 | return (0); | |
1902 | } | |
1903 | ||
1904 | int | |
1905 | lpfc_els_rsp_reject(struct lpfc_hba * phba, uint32_t rejectError, | |
1906 | struct lpfc_iocbq * oldiocb, struct lpfc_nodelist * ndlp) | |
1907 | { | |
1908 | IOCB_t *icmd; | |
1909 | IOCB_t *oldcmd; | |
1910 | struct lpfc_iocbq *elsiocb; | |
1911 | struct lpfc_sli_ring *pring; | |
1912 | struct lpfc_sli *psli; | |
1913 | uint8_t *pcmd; | |
1914 | uint16_t cmdsize; | |
1915 | int rc; | |
1916 | ||
1917 | psli = &phba->sli; | |
1918 | pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */ | |
1919 | ||
1920 | cmdsize = 2 * sizeof (uint32_t); | |
1921 | if ((elsiocb = lpfc_prep_els_iocb(phba, 0, cmdsize, oldiocb->retry, | |
1922 | ndlp, ELS_CMD_LS_RJT)) == 0) { | |
1923 | return (1); | |
1924 | } | |
1925 | ||
1926 | icmd = &elsiocb->iocb; | |
1927 | oldcmd = &oldiocb->iocb; | |
1928 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
1929 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
1930 | ||
1931 | *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT; | |
1932 | pcmd += sizeof (uint32_t); | |
1933 | *((uint32_t *) (pcmd)) = rejectError; | |
1934 | ||
1935 | /* Xmit ELS RJT <err> response tag <ulpIoTag> */ | |
1936 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS, | |
1937 | "%d:0129 Xmit ELS RJT x%x response tag x%x " | |
1938 | "Data: x%x x%x x%x x%x x%x\n", | |
1939 | phba->brd_no, | |
1940 | rejectError, elsiocb->iocb.ulpIoTag, | |
1941 | elsiocb->iocb.ulpContext, ndlp->nlp_DID, | |
1942 | ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi); | |
1943 | ||
1944 | phba->fc_stat.elsXmitLSRJT++; | |
1945 | elsiocb->iocb_cmpl = lpfc_cmpl_els_acc; | |
1946 | spin_lock_irq(phba->host->host_lock); | |
1947 | rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0); | |
1948 | spin_unlock_irq(phba->host->host_lock); | |
1949 | if (rc == IOCB_ERROR) { | |
1950 | lpfc_els_free_iocb(phba, elsiocb); | |
1951 | return (1); | |
1952 | } | |
1953 | return (0); | |
1954 | } | |
1955 | ||
1956 | int | |
1957 | lpfc_els_rsp_adisc_acc(struct lpfc_hba * phba, | |
1958 | struct lpfc_iocbq * oldiocb, struct lpfc_nodelist * ndlp) | |
1959 | { | |
1960 | ADISC *ap; | |
1961 | IOCB_t *icmd; | |
1962 | IOCB_t *oldcmd; | |
1963 | struct lpfc_iocbq *elsiocb; | |
1964 | struct lpfc_sli_ring *pring; | |
1965 | struct lpfc_sli *psli; | |
1966 | uint8_t *pcmd; | |
1967 | uint16_t cmdsize; | |
1968 | int rc; | |
1969 | ||
1970 | psli = &phba->sli; | |
1971 | pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */ | |
1972 | ||
1973 | cmdsize = sizeof (uint32_t) + sizeof (ADISC); | |
1974 | if ((elsiocb = lpfc_prep_els_iocb(phba, 0, cmdsize, oldiocb->retry, | |
1975 | ndlp, ELS_CMD_ACC)) == 0) { | |
1976 | return (1); | |
1977 | } | |
1978 | ||
1979 | /* Xmit ADISC ACC response tag <ulpIoTag> */ | |
1980 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS, | |
1981 | "%d:0130 Xmit ADISC ACC response tag x%x " | |
1982 | "Data: x%x x%x x%x x%x x%x\n", | |
1983 | phba->brd_no, | |
1984 | elsiocb->iocb.ulpIoTag, | |
1985 | elsiocb->iocb.ulpContext, ndlp->nlp_DID, | |
1986 | ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi); | |
1987 | ||
1988 | icmd = &elsiocb->iocb; | |
1989 | oldcmd = &oldiocb->iocb; | |
1990 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
1991 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
1992 | ||
1993 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
1994 | pcmd += sizeof (uint32_t); | |
1995 | ||
1996 | ap = (ADISC *) (pcmd); | |
1997 | ap->hardAL_PA = phba->fc_pref_ALPA; | |
1998 | memcpy(&ap->portName, &phba->fc_portname, sizeof (struct lpfc_name)); | |
1999 | memcpy(&ap->nodeName, &phba->fc_nodename, sizeof (struct lpfc_name)); | |
2000 | ap->DID = be32_to_cpu(phba->fc_myDID); | |
2001 | ||
2002 | phba->fc_stat.elsXmitACC++; | |
2003 | elsiocb->iocb_cmpl = lpfc_cmpl_els_acc; | |
2004 | spin_lock_irq(phba->host->host_lock); | |
2005 | rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0); | |
2006 | spin_unlock_irq(phba->host->host_lock); | |
2007 | if (rc == IOCB_ERROR) { | |
2008 | lpfc_els_free_iocb(phba, elsiocb); | |
2009 | return (1); | |
2010 | } | |
2011 | return (0); | |
2012 | } | |
2013 | ||
2014 | int | |
2015 | lpfc_els_rsp_prli_acc(struct lpfc_hba * phba, | |
2016 | struct lpfc_iocbq * oldiocb, struct lpfc_nodelist * ndlp) | |
2017 | { | |
2018 | PRLI *npr; | |
2019 | lpfc_vpd_t *vpd; | |
2020 | IOCB_t *icmd; | |
2021 | IOCB_t *oldcmd; | |
2022 | struct lpfc_iocbq *elsiocb; | |
2023 | struct lpfc_sli_ring *pring; | |
2024 | struct lpfc_sli *psli; | |
2025 | uint8_t *pcmd; | |
2026 | uint16_t cmdsize; | |
2027 | int rc; | |
2028 | ||
2029 | psli = &phba->sli; | |
2030 | pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */ | |
2031 | ||
2032 | cmdsize = sizeof (uint32_t) + sizeof (PRLI); | |
2033 | if ((elsiocb = lpfc_prep_els_iocb(phba, 0, cmdsize, oldiocb->retry, | |
2034 | ndlp, | |
2035 | (ELS_CMD_ACC | | |
2036 | (ELS_CMD_PRLI & ~ELS_RSP_MASK)))) == | |
2037 | 0) { | |
2038 | return (1); | |
2039 | } | |
2040 | ||
2041 | /* Xmit PRLI ACC response tag <ulpIoTag> */ | |
2042 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS, | |
2043 | "%d:0131 Xmit PRLI ACC response tag x%x " | |
2044 | "Data: x%x x%x x%x x%x x%x\n", | |
2045 | phba->brd_no, | |
2046 | elsiocb->iocb.ulpIoTag, | |
2047 | elsiocb->iocb.ulpContext, ndlp->nlp_DID, | |
2048 | ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi); | |
2049 | ||
2050 | icmd = &elsiocb->iocb; | |
2051 | oldcmd = &oldiocb->iocb; | |
2052 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
2053 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
2054 | ||
2055 | *((uint32_t *) (pcmd)) = (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK)); | |
2056 | pcmd += sizeof (uint32_t); | |
2057 | ||
2058 | /* For PRLI, remainder of payload is PRLI parameter page */ | |
2059 | memset(pcmd, 0, sizeof (PRLI)); | |
2060 | ||
2061 | npr = (PRLI *) pcmd; | |
2062 | vpd = &phba->vpd; | |
2063 | /* | |
2064 | * If our firmware version is 3.20 or later, | |
2065 | * set the following bits for FC-TAPE support. | |
2066 | */ | |
2067 | if (vpd->rev.feaLevelHigh >= 0x02) { | |
2068 | npr->ConfmComplAllowed = 1; | |
2069 | npr->Retry = 1; | |
2070 | npr->TaskRetryIdReq = 1; | |
2071 | } | |
2072 | ||
2073 | npr->acceptRspCode = PRLI_REQ_EXECUTED; | |
2074 | npr->estabImagePair = 1; | |
2075 | npr->readXferRdyDis = 1; | |
2076 | npr->ConfmComplAllowed = 1; | |
2077 | ||
2078 | npr->prliType = PRLI_FCP_TYPE; | |
2079 | npr->initiatorFunc = 1; | |
2080 | ||
2081 | phba->fc_stat.elsXmitACC++; | |
2082 | elsiocb->iocb_cmpl = lpfc_cmpl_els_acc; | |
2083 | ||
2084 | spin_lock_irq(phba->host->host_lock); | |
2085 | rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0); | |
2086 | spin_unlock_irq(phba->host->host_lock); | |
2087 | if (rc == IOCB_ERROR) { | |
2088 | lpfc_els_free_iocb(phba, elsiocb); | |
2089 | return (1); | |
2090 | } | |
2091 | return (0); | |
2092 | } | |
2093 | ||
2094 | static int | |
2095 | lpfc_els_rsp_rnid_acc(struct lpfc_hba * phba, | |
2096 | uint8_t format, | |
2097 | struct lpfc_iocbq * oldiocb, struct lpfc_nodelist * ndlp) | |
2098 | { | |
2099 | RNID *rn; | |
2100 | IOCB_t *icmd; | |
2101 | IOCB_t *oldcmd; | |
2102 | struct lpfc_iocbq *elsiocb; | |
2103 | struct lpfc_sli_ring *pring; | |
2104 | struct lpfc_sli *psli; | |
2105 | uint8_t *pcmd; | |
2106 | uint16_t cmdsize; | |
2107 | int rc; | |
2108 | ||
2109 | psli = &phba->sli; | |
2110 | pring = &psli->ring[LPFC_ELS_RING]; | |
2111 | ||
2112 | cmdsize = sizeof (uint32_t) + sizeof (uint32_t) | |
2113 | + (2 * sizeof (struct lpfc_name)); | |
2114 | if (format) | |
2115 | cmdsize += sizeof (RNID_TOP_DISC); | |
2116 | ||
2117 | if ((elsiocb = lpfc_prep_els_iocb(phba, 0, cmdsize, oldiocb->retry, | |
2118 | ndlp, ELS_CMD_ACC)) == 0) { | |
2119 | return (1); | |
2120 | } | |
2121 | ||
2122 | /* Xmit RNID ACC response tag <ulpIoTag> */ | |
2123 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS, | |
2124 | "%d:0132 Xmit RNID ACC response tag x%x " | |
2125 | "Data: x%x\n", | |
2126 | phba->brd_no, | |
2127 | elsiocb->iocb.ulpIoTag, | |
2128 | elsiocb->iocb.ulpContext); | |
2129 | ||
2130 | icmd = &elsiocb->iocb; | |
2131 | oldcmd = &oldiocb->iocb; | |
2132 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
2133 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
2134 | ||
2135 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
2136 | pcmd += sizeof (uint32_t); | |
2137 | ||
2138 | memset(pcmd, 0, sizeof (RNID)); | |
2139 | rn = (RNID *) (pcmd); | |
2140 | rn->Format = format; | |
2141 | rn->CommonLen = (2 * sizeof (struct lpfc_name)); | |
2142 | memcpy(&rn->portName, &phba->fc_portname, sizeof (struct lpfc_name)); | |
2143 | memcpy(&rn->nodeName, &phba->fc_nodename, sizeof (struct lpfc_name)); | |
2144 | switch (format) { | |
2145 | case 0: | |
2146 | rn->SpecificLen = 0; | |
2147 | break; | |
2148 | case RNID_TOPOLOGY_DISC: | |
2149 | rn->SpecificLen = sizeof (RNID_TOP_DISC); | |
2150 | memcpy(&rn->un.topologyDisc.portName, | |
2151 | &phba->fc_portname, sizeof (struct lpfc_name)); | |
2152 | rn->un.topologyDisc.unitType = RNID_HBA; | |
2153 | rn->un.topologyDisc.physPort = 0; | |
2154 | rn->un.topologyDisc.attachedNodes = 0; | |
2155 | break; | |
2156 | default: | |
2157 | rn->CommonLen = 0; | |
2158 | rn->SpecificLen = 0; | |
2159 | break; | |
2160 | } | |
2161 | ||
2162 | phba->fc_stat.elsXmitACC++; | |
2163 | elsiocb->iocb_cmpl = lpfc_cmpl_els_acc; | |
2164 | elsiocb->context1 = NULL; /* Don't need ndlp for cmpl, | |
2165 | * it could be freed */ | |
2166 | ||
2167 | spin_lock_irq(phba->host->host_lock); | |
2168 | rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0); | |
2169 | spin_unlock_irq(phba->host->host_lock); | |
2170 | if (rc == IOCB_ERROR) { | |
2171 | lpfc_els_free_iocb(phba, elsiocb); | |
2172 | return (1); | |
2173 | } | |
2174 | return (0); | |
2175 | } | |
2176 | ||
2177 | int | |
2178 | lpfc_els_disc_adisc(struct lpfc_hba * phba) | |
2179 | { | |
2180 | int sentadisc; | |
2181 | struct lpfc_nodelist *ndlp, *next_ndlp; | |
2182 | ||
2183 | sentadisc = 0; | |
2184 | /* go thru NPR list and issue any remaining ELS ADISCs */ | |
2185 | list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list, | |
2186 | nlp_listp) { | |
2187 | if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { | |
2188 | if (ndlp->nlp_flag & NLP_NPR_ADISC) { | |
2189 | ndlp->nlp_flag &= ~NLP_NPR_ADISC; | |
2190 | ndlp->nlp_state = NLP_STE_ADISC_ISSUE; | |
2191 | lpfc_nlp_list(phba, ndlp, | |
2192 | NLP_ADISC_LIST); | |
2193 | lpfc_issue_els_adisc(phba, ndlp, 0); | |
2194 | sentadisc++; | |
2195 | phba->num_disc_nodes++; | |
2196 | if (phba->num_disc_nodes >= | |
2197 | phba->cfg_discovery_threads) { | |
2198 | spin_lock_irq(phba->host->host_lock); | |
2199 | phba->fc_flag |= FC_NLP_MORE; | |
2200 | spin_unlock_irq(phba->host->host_lock); | |
2201 | break; | |
2202 | } | |
2203 | } | |
2204 | } | |
2205 | } | |
2206 | if (sentadisc == 0) { | |
2207 | spin_lock_irq(phba->host->host_lock); | |
2208 | phba->fc_flag &= ~FC_NLP_MORE; | |
2209 | spin_unlock_irq(phba->host->host_lock); | |
2210 | } | |
2211 | return(sentadisc); | |
2212 | } | |
2213 | ||
2214 | int | |
2215 | lpfc_els_disc_plogi(struct lpfc_hba * phba) | |
2216 | { | |
2217 | int sentplogi; | |
2218 | struct lpfc_nodelist *ndlp, *next_ndlp; | |
2219 | ||
2220 | sentplogi = 0; | |
2221 | /* go thru NPR list and issue any remaining ELS PLOGIs */ | |
2222 | list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list, | |
2223 | nlp_listp) { | |
2224 | if ((ndlp->nlp_flag & NLP_NPR_2B_DISC) && | |
2225 | (!(ndlp->nlp_flag & NLP_DELAY_TMO))) { | |
2226 | if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { | |
2227 | ndlp->nlp_state = NLP_STE_PLOGI_ISSUE; | |
2228 | lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST); | |
2229 | lpfc_issue_els_plogi(phba, ndlp, 0); | |
2230 | sentplogi++; | |
2231 | phba->num_disc_nodes++; | |
2232 | if (phba->num_disc_nodes >= | |
2233 | phba->cfg_discovery_threads) { | |
2234 | spin_lock_irq(phba->host->host_lock); | |
2235 | phba->fc_flag |= FC_NLP_MORE; | |
2236 | spin_unlock_irq(phba->host->host_lock); | |
2237 | break; | |
2238 | } | |
2239 | } | |
2240 | } | |
2241 | } | |
2242 | if (sentplogi == 0) { | |
2243 | spin_lock_irq(phba->host->host_lock); | |
2244 | phba->fc_flag &= ~FC_NLP_MORE; | |
2245 | spin_unlock_irq(phba->host->host_lock); | |
2246 | } | |
2247 | return(sentplogi); | |
2248 | } | |
2249 | ||
2250 | int | |
2251 | lpfc_els_flush_rscn(struct lpfc_hba * phba) | |
2252 | { | |
2253 | struct lpfc_dmabuf *mp; | |
2254 | int i; | |
2255 | ||
2256 | for (i = 0; i < phba->fc_rscn_id_cnt; i++) { | |
2257 | mp = phba->fc_rscn_id_list[i]; | |
2258 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
2259 | kfree(mp); | |
2260 | phba->fc_rscn_id_list[i] = NULL; | |
2261 | } | |
2262 | phba->fc_rscn_id_cnt = 0; | |
2263 | spin_lock_irq(phba->host->host_lock); | |
2264 | phba->fc_flag &= ~(FC_RSCN_MODE | FC_RSCN_DISCOVERY); | |
2265 | spin_unlock_irq(phba->host->host_lock); | |
2266 | lpfc_can_disctmo(phba); | |
2267 | return (0); | |
2268 | } | |
2269 | ||
2270 | int | |
2271 | lpfc_rscn_payload_check(struct lpfc_hba * phba, uint32_t did) | |
2272 | { | |
2273 | D_ID ns_did; | |
2274 | D_ID rscn_did; | |
2275 | struct lpfc_dmabuf *mp; | |
2276 | uint32_t *lp; | |
2277 | uint32_t payload_len, cmd, i, match; | |
2278 | ||
2279 | ns_did.un.word = did; | |
2280 | match = 0; | |
2281 | ||
2282 | /* Never match fabric nodes for RSCNs */ | |
2283 | if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) | |
2284 | return(0); | |
2285 | ||
2286 | /* If we are doing a FULL RSCN rediscovery, match everything */ | |
2287 | if (phba->fc_flag & FC_RSCN_DISCOVERY) { | |
2288 | return (did); | |
2289 | } | |
2290 | ||
2291 | for (i = 0; i < phba->fc_rscn_id_cnt; i++) { | |
2292 | mp = phba->fc_rscn_id_list[i]; | |
2293 | lp = (uint32_t *) mp->virt; | |
2294 | cmd = *lp++; | |
2295 | payload_len = be32_to_cpu(cmd) & 0xffff; /* payload length */ | |
2296 | payload_len -= sizeof (uint32_t); /* take off word 0 */ | |
2297 | while (payload_len) { | |
2298 | rscn_did.un.word = *lp++; | |
2299 | rscn_did.un.word = be32_to_cpu(rscn_did.un.word); | |
2300 | payload_len -= sizeof (uint32_t); | |
2301 | switch (rscn_did.un.b.resv) { | |
2302 | case 0: /* Single N_Port ID effected */ | |
2303 | if (ns_did.un.word == rscn_did.un.word) { | |
2304 | match = did; | |
2305 | } | |
2306 | break; | |
2307 | case 1: /* Whole N_Port Area effected */ | |
2308 | if ((ns_did.un.b.domain == rscn_did.un.b.domain) | |
2309 | && (ns_did.un.b.area == rscn_did.un.b.area)) | |
2310 | { | |
2311 | match = did; | |
2312 | } | |
2313 | break; | |
2314 | case 2: /* Whole N_Port Domain effected */ | |
2315 | if (ns_did.un.b.domain == rscn_did.un.b.domain) | |
2316 | { | |
2317 | match = did; | |
2318 | } | |
2319 | break; | |
2320 | case 3: /* Whole Fabric effected */ | |
2321 | match = did; | |
2322 | break; | |
2323 | default: | |
2324 | /* Unknown Identifier in RSCN list */ | |
2325 | lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, | |
2326 | "%d:0217 Unknown Identifier in " | |
2327 | "RSCN payload Data: x%x\n", | |
2328 | phba->brd_no, rscn_did.un.word); | |
2329 | break; | |
2330 | } | |
2331 | if (match) { | |
2332 | break; | |
2333 | } | |
2334 | } | |
2335 | } | |
2336 | return (match); | |
2337 | } | |
2338 | ||
2339 | static int | |
2340 | lpfc_rscn_recovery_check(struct lpfc_hba * phba) | |
2341 | { | |
2342 | struct lpfc_nodelist *ndlp = NULL, *next_ndlp; | |
2343 | struct list_head *listp; | |
2344 | struct list_head *node_list[7]; | |
2345 | int i; | |
2346 | ||
2347 | /* Look at all nodes effected by pending RSCNs and move | |
2348 | * them to NPR list. | |
2349 | */ | |
2350 | node_list[0] = &phba->fc_npr_list; /* MUST do this list first */ | |
2351 | node_list[1] = &phba->fc_nlpmap_list; | |
2352 | node_list[2] = &phba->fc_nlpunmap_list; | |
2353 | node_list[3] = &phba->fc_prli_list; | |
2354 | node_list[4] = &phba->fc_reglogin_list; | |
2355 | node_list[5] = &phba->fc_adisc_list; | |
2356 | node_list[6] = &phba->fc_plogi_list; | |
2357 | for (i = 0; i < 7; i++) { | |
2358 | listp = node_list[i]; | |
2359 | if (list_empty(listp)) | |
2360 | continue; | |
2361 | ||
2362 | list_for_each_entry_safe(ndlp, next_ndlp, listp, nlp_listp) { | |
2363 | if (!(lpfc_rscn_payload_check(phba, ndlp->nlp_DID))) | |
2364 | continue; | |
2365 | ||
2366 | lpfc_disc_state_machine(phba, ndlp, NULL, | |
2367 | NLP_EVT_DEVICE_RECOVERY); | |
2368 | if (ndlp->nlp_flag & NLP_DELAY_TMO) { | |
2369 | ndlp->nlp_flag &= ~NLP_DELAY_TMO; | |
2370 | del_timer_sync(&ndlp->nlp_delayfunc); | |
2371 | if (!list_empty(&ndlp-> | |
2372 | els_retry_evt.evt_listp)) | |
2373 | list_del_init(&ndlp-> | |
2374 | els_retry_evt.evt_listp); | |
2375 | } | |
2376 | } | |
2377 | } | |
2378 | return (0); | |
2379 | } | |
2380 | ||
2381 | static int | |
2382 | lpfc_els_rcv_rscn(struct lpfc_hba * phba, | |
2383 | struct lpfc_iocbq * cmdiocb, | |
2384 | struct lpfc_nodelist * ndlp, uint8_t newnode) | |
2385 | { | |
2386 | struct lpfc_dmabuf *pcmd; | |
2387 | uint32_t *lp; | |
2388 | IOCB_t *icmd; | |
2389 | uint32_t payload_len, cmd; | |
2390 | ||
2391 | icmd = &cmdiocb->iocb; | |
2392 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
2393 | lp = (uint32_t *) pcmd->virt; | |
2394 | ||
2395 | cmd = *lp++; | |
2396 | payload_len = be32_to_cpu(cmd) & 0xffff; /* payload length */ | |
2397 | payload_len -= sizeof (uint32_t); /* take off word 0 */ | |
2398 | cmd &= ELS_CMD_MASK; | |
2399 | ||
2400 | /* RSCN received */ | |
2401 | lpfc_printf_log(phba, | |
2402 | KERN_INFO, | |
2403 | LOG_DISCOVERY, | |
2404 | "%d:0214 RSCN received Data: x%x x%x x%x x%x\n", | |
2405 | phba->brd_no, | |
2406 | phba->fc_flag, payload_len, *lp, phba->fc_rscn_id_cnt); | |
2407 | ||
2408 | /* If we are about to begin discovery, just ACC the RSCN. | |
2409 | * Discovery processing will satisfy it. | |
2410 | */ | |
2411 | if (phba->hba_state < LPFC_NS_QRY) { | |
2412 | lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, | |
2413 | newnode); | |
2414 | return (0); | |
2415 | } | |
2416 | ||
2417 | /* If we are already processing an RSCN, save the received | |
2418 | * RSCN payload buffer, cmdiocb->context2 to process later. | |
2419 | */ | |
2420 | if (phba->fc_flag & (FC_RSCN_MODE | FC_NDISC_ACTIVE)) { | |
2421 | if ((phba->fc_rscn_id_cnt < FC_MAX_HOLD_RSCN) && | |
2422 | !(phba->fc_flag & FC_RSCN_DISCOVERY)) { | |
2423 | spin_lock_irq(phba->host->host_lock); | |
2424 | phba->fc_flag |= FC_RSCN_MODE; | |
2425 | spin_unlock_irq(phba->host->host_lock); | |
2426 | phba->fc_rscn_id_list[phba->fc_rscn_id_cnt++] = pcmd; | |
2427 | ||
2428 | /* If we zero, cmdiocb->context2, the calling | |
2429 | * routine will not try to free it. | |
2430 | */ | |
2431 | cmdiocb->context2 = NULL; | |
2432 | ||
2433 | /* Deferred RSCN */ | |
2434 | lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, | |
2435 | "%d:0235 Deferred RSCN " | |
2436 | "Data: x%x x%x x%x\n", | |
2437 | phba->brd_no, phba->fc_rscn_id_cnt, | |
2438 | phba->fc_flag, phba->hba_state); | |
2439 | } else { | |
2440 | spin_lock_irq(phba->host->host_lock); | |
2441 | phba->fc_flag |= FC_RSCN_DISCOVERY; | |
2442 | spin_unlock_irq(phba->host->host_lock); | |
2443 | /* ReDiscovery RSCN */ | |
2444 | lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, | |
2445 | "%d:0234 ReDiscovery RSCN " | |
2446 | "Data: x%x x%x x%x\n", | |
2447 | phba->brd_no, phba->fc_rscn_id_cnt, | |
2448 | phba->fc_flag, phba->hba_state); | |
2449 | } | |
2450 | /* Send back ACC */ | |
2451 | lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, | |
2452 | newnode); | |
2453 | ||
2454 | /* send RECOVERY event for ALL nodes that match RSCN payload */ | |
2455 | lpfc_rscn_recovery_check(phba); | |
2456 | return (0); | |
2457 | } | |
2458 | ||
2459 | phba->fc_flag |= FC_RSCN_MODE; | |
2460 | phba->fc_rscn_id_list[phba->fc_rscn_id_cnt++] = pcmd; | |
2461 | /* | |
2462 | * If we zero, cmdiocb->context2, the calling routine will | |
2463 | * not try to free it. | |
2464 | */ | |
2465 | cmdiocb->context2 = NULL; | |
2466 | ||
2467 | lpfc_set_disctmo(phba); | |
2468 | ||
2469 | /* Send back ACC */ | |
2470 | lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, newnode); | |
2471 | ||
2472 | /* send RECOVERY event for ALL nodes that match RSCN payload */ | |
2473 | lpfc_rscn_recovery_check(phba); | |
2474 | ||
2475 | return (lpfc_els_handle_rscn(phba)); | |
2476 | } | |
2477 | ||
2478 | int | |
2479 | lpfc_els_handle_rscn(struct lpfc_hba * phba) | |
2480 | { | |
2481 | struct lpfc_nodelist *ndlp; | |
2482 | ||
2483 | /* Start timer for RSCN processing */ | |
2484 | lpfc_set_disctmo(phba); | |
2485 | ||
2486 | /* RSCN processed */ | |
2487 | lpfc_printf_log(phba, | |
2488 | KERN_INFO, | |
2489 | LOG_DISCOVERY, | |
2490 | "%d:0215 RSCN processed Data: x%x x%x x%x x%x\n", | |
2491 | phba->brd_no, | |
2492 | phba->fc_flag, 0, phba->fc_rscn_id_cnt, | |
2493 | phba->hba_state); | |
2494 | ||
2495 | /* To process RSCN, first compare RSCN data with NameServer */ | |
2496 | phba->fc_ns_retry = 0; | |
2497 | if ((ndlp = lpfc_findnode_did(phba, NLP_SEARCH_UNMAPPED, | |
2498 | NameServer_DID))) { | |
2499 | /* Good ndlp, issue CT Request to NameServer */ | |
2500 | if (lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT) == 0) { | |
2501 | /* Wait for NameServer query cmpl before we can | |
2502 | continue */ | |
2503 | return (1); | |
2504 | } | |
2505 | } else { | |
2506 | /* If login to NameServer does not exist, issue one */ | |
2507 | /* Good status, issue PLOGI to NameServer */ | |
2508 | if ((ndlp = | |
2509 | lpfc_findnode_did(phba, NLP_SEARCH_ALL, NameServer_DID))) { | |
2510 | /* Wait for NameServer login cmpl before we can | |
2511 | continue */ | |
2512 | return (1); | |
2513 | } | |
2514 | if ((ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL)) | |
2515 | == 0) { | |
2516 | lpfc_els_flush_rscn(phba); | |
2517 | return (0); | |
2518 | } else { | |
2519 | lpfc_nlp_init(phba, ndlp, NameServer_DID); | |
2520 | ndlp->nlp_type |= NLP_FABRIC; | |
2521 | ndlp->nlp_state = NLP_STE_PLOGI_ISSUE; | |
2522 | lpfc_issue_els_plogi(phba, ndlp, 0); | |
2523 | /* Wait for NameServer login cmpl before we can | |
2524 | continue */ | |
2525 | return (1); | |
2526 | } | |
2527 | } | |
2528 | ||
2529 | lpfc_els_flush_rscn(phba); | |
2530 | return (0); | |
2531 | } | |
2532 | ||
2533 | static int | |
2534 | lpfc_els_rcv_flogi(struct lpfc_hba * phba, | |
2535 | struct lpfc_iocbq * cmdiocb, | |
2536 | struct lpfc_nodelist * ndlp, uint8_t newnode) | |
2537 | { | |
2538 | struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
2539 | uint32_t *lp = (uint32_t *) pcmd->virt; | |
2540 | IOCB_t *icmd = &cmdiocb->iocb; | |
2541 | struct serv_parm *sp; | |
2542 | LPFC_MBOXQ_t *mbox; | |
2543 | struct ls_rjt stat; | |
2544 | uint32_t cmd, did; | |
2545 | int rc; | |
2546 | ||
2547 | cmd = *lp++; | |
2548 | sp = (struct serv_parm *) lp; | |
2549 | ||
2550 | /* FLOGI received */ | |
2551 | ||
2552 | lpfc_set_disctmo(phba); | |
2553 | ||
2554 | if (phba->fc_topology == TOPOLOGY_LOOP) { | |
2555 | /* We should never receive a FLOGI in loop mode, ignore it */ | |
2556 | did = icmd->un.elsreq64.remoteID; | |
2557 | ||
2558 | /* An FLOGI ELS command <elsCmd> was received from DID <did> in | |
2559 | Loop Mode */ | |
2560 | lpfc_printf_log(phba, KERN_ERR, LOG_ELS, | |
2561 | "%d:0113 An FLOGI ELS command x%x was received " | |
2562 | "from DID x%x in Loop Mode\n", | |
2563 | phba->brd_no, cmd, did); | |
2564 | return (1); | |
2565 | } | |
2566 | ||
2567 | did = Fabric_DID; | |
2568 | ||
2569 | if ((lpfc_check_sparm(phba, ndlp, sp, CLASS3))) { | |
2570 | /* For a FLOGI we accept, then if our portname is greater | |
2571 | * then the remote portname we initiate Nport login. | |
2572 | */ | |
2573 | ||
2574 | rc = memcmp(&phba->fc_portname, &sp->portName, | |
2575 | sizeof (struct lpfc_name)); | |
2576 | ||
2577 | if (!rc) { | |
2578 | if ((mbox = mempool_alloc(phba->mbox_mem_pool, | |
2579 | GFP_KERNEL)) == 0) { | |
2580 | return (1); | |
2581 | } | |
2582 | lpfc_linkdown(phba); | |
2583 | lpfc_init_link(phba, mbox, | |
2584 | phba->cfg_topology, | |
2585 | phba->cfg_link_speed); | |
2586 | mbox->mb.un.varInitLnk.lipsr_AL_PA = 0; | |
2587 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
2588 | rc = lpfc_sli_issue_mbox | |
2589 | (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB)); | |
2590 | if (rc == MBX_NOT_FINISHED) { | |
2591 | mempool_free( mbox, phba->mbox_mem_pool); | |
2592 | } | |
2593 | return (1); | |
2594 | } | |
2595 | else if (rc > 0) { /* greater than */ | |
2596 | spin_lock_irq(phba->host->host_lock); | |
2597 | phba->fc_flag |= FC_PT2PT_PLOGI; | |
2598 | spin_unlock_irq(phba->host->host_lock); | |
2599 | } | |
2600 | phba->fc_flag |= FC_PT2PT; | |
2601 | phba->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
2602 | } else { | |
2603 | /* Reject this request because invalid parameters */ | |
2604 | stat.un.b.lsRjtRsvd0 = 0; | |
2605 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
2606 | stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; | |
2607 | stat.un.b.vendorUnique = 0; | |
2608 | lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp); | |
2609 | return (1); | |
2610 | } | |
2611 | ||
2612 | /* Send back ACC */ | |
2613 | lpfc_els_rsp_acc(phba, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL, newnode); | |
2614 | ||
2615 | return (0); | |
2616 | } | |
2617 | ||
2618 | static int | |
2619 | lpfc_els_rcv_rnid(struct lpfc_hba * phba, | |
2620 | struct lpfc_iocbq * cmdiocb, struct lpfc_nodelist * ndlp) | |
2621 | { | |
2622 | struct lpfc_dmabuf *pcmd; | |
2623 | uint32_t *lp; | |
2624 | IOCB_t *icmd; | |
2625 | RNID *rn; | |
2626 | struct ls_rjt stat; | |
2627 | uint32_t cmd, did; | |
2628 | ||
2629 | icmd = &cmdiocb->iocb; | |
2630 | did = icmd->un.elsreq64.remoteID; | |
2631 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
2632 | lp = (uint32_t *) pcmd->virt; | |
2633 | ||
2634 | cmd = *lp++; | |
2635 | rn = (RNID *) lp; | |
2636 | ||
2637 | /* RNID received */ | |
2638 | ||
2639 | switch (rn->Format) { | |
2640 | case 0: | |
2641 | case RNID_TOPOLOGY_DISC: | |
2642 | /* Send back ACC */ | |
2643 | lpfc_els_rsp_rnid_acc(phba, rn->Format, cmdiocb, ndlp); | |
2644 | break; | |
2645 | default: | |
2646 | /* Reject this request because format not supported */ | |
2647 | stat.un.b.lsRjtRsvd0 = 0; | |
2648 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
2649 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
2650 | stat.un.b.vendorUnique = 0; | |
2651 | lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp); | |
2652 | } | |
2653 | return (0); | |
2654 | } | |
2655 | ||
2656 | static int | |
2657 | lpfc_els_rcv_rrq(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb, | |
2658 | struct lpfc_nodelist * ndlp) | |
2659 | { | |
2660 | struct lpfc_dmabuf *pcmd; | |
2661 | uint32_t *lp; | |
2662 | IOCB_t *icmd; | |
2663 | struct lpfc_sli_ring *pring; | |
2664 | struct lpfc_sli *psli; | |
2665 | RRQ *rrq; | |
2666 | uint32_t cmd, did; | |
2667 | ||
2668 | psli = &phba->sli; | |
2669 | pring = &psli->ring[LPFC_FCP_RING]; | |
2670 | icmd = &cmdiocb->iocb; | |
2671 | did = icmd->un.elsreq64.remoteID; | |
2672 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
2673 | lp = (uint32_t *) pcmd->virt; | |
2674 | ||
2675 | cmd = *lp++; | |
2676 | rrq = (RRQ *) lp; | |
2677 | ||
2678 | /* RRQ received */ | |
2679 | /* Get oxid / rxid from payload and abort it */ | |
2680 | spin_lock_irq(phba->host->host_lock); | |
2681 | if ((rrq->SID == be32_to_cpu(phba->fc_myDID))) { | |
2682 | lpfc_sli_abort_iocb(phba, pring, 0, 0, rrq->Oxid, | |
2683 | LPFC_CTX_CTX); | |
2684 | } else { | |
2685 | lpfc_sli_abort_iocb(phba, pring, 0, 0, rrq->Rxid, | |
2686 | LPFC_CTX_CTX); | |
2687 | } | |
2688 | ||
2689 | spin_unlock_irq(phba->host->host_lock); | |
2690 | /* ACCEPT the rrq request */ | |
2691 | lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0); | |
2692 | ||
2693 | return 0; | |
2694 | } | |
2695 | ||
2696 | static int | |
2697 | lpfc_els_rcv_farp(struct lpfc_hba * phba, | |
2698 | struct lpfc_iocbq * cmdiocb, struct lpfc_nodelist * ndlp) | |
2699 | { | |
2700 | struct lpfc_dmabuf *pcmd; | |
2701 | uint32_t *lp; | |
2702 | IOCB_t *icmd; | |
2703 | FARP *fp; | |
2704 | uint32_t cmd, cnt, did; | |
2705 | ||
2706 | icmd = &cmdiocb->iocb; | |
2707 | did = icmd->un.elsreq64.remoteID; | |
2708 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
2709 | lp = (uint32_t *) pcmd->virt; | |
2710 | ||
2711 | cmd = *lp++; | |
2712 | fp = (FARP *) lp; | |
2713 | ||
2714 | /* FARP-REQ received from DID <did> */ | |
2715 | lpfc_printf_log(phba, | |
2716 | KERN_INFO, | |
2717 | LOG_IP, | |
2718 | "%d:0601 FARP-REQ received from DID x%x\n", | |
2719 | phba->brd_no, did); | |
2720 | ||
2721 | /* We will only support match on WWPN or WWNN */ | |
2722 | if (fp->Mflags & ~(FARP_MATCH_NODE | FARP_MATCH_PORT)) { | |
2723 | return (0); | |
2724 | } | |
2725 | ||
2726 | cnt = 0; | |
2727 | /* If this FARP command is searching for my portname */ | |
2728 | if (fp->Mflags & FARP_MATCH_PORT) { | |
2729 | if (memcmp(&fp->RportName, &phba->fc_portname, | |
2730 | sizeof (struct lpfc_name)) == 0) | |
2731 | cnt = 1; | |
2732 | } | |
2733 | ||
2734 | /* If this FARP command is searching for my nodename */ | |
2735 | if (fp->Mflags & FARP_MATCH_NODE) { | |
2736 | if (memcmp(&fp->RnodeName, &phba->fc_nodename, | |
2737 | sizeof (struct lpfc_name)) == 0) | |
2738 | cnt = 1; | |
2739 | } | |
2740 | ||
2741 | if (cnt) { | |
2742 | if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) || | |
2743 | (ndlp->nlp_state == NLP_STE_MAPPED_NODE)) { | |
2744 | /* Log back into the node before sending the FARP. */ | |
2745 | if (fp->Rflags & FARP_REQUEST_PLOGI) { | |
2746 | ndlp->nlp_state = NLP_STE_PLOGI_ISSUE; | |
2747 | lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST); | |
2748 | lpfc_issue_els_plogi(phba, ndlp, 0); | |
2749 | } | |
2750 | ||
2751 | /* Send a FARP response to that node */ | |
2752 | if (fp->Rflags & FARP_REQUEST_FARPR) { | |
2753 | lpfc_issue_els_farpr(phba, did, 0); | |
2754 | } | |
2755 | } | |
2756 | } | |
2757 | return (0); | |
2758 | } | |
2759 | ||
2760 | static int | |
2761 | lpfc_els_rcv_farpr(struct lpfc_hba * phba, | |
2762 | struct lpfc_iocbq * cmdiocb, struct lpfc_nodelist * ndlp) | |
2763 | { | |
2764 | struct lpfc_dmabuf *pcmd; | |
2765 | uint32_t *lp; | |
2766 | IOCB_t *icmd; | |
2767 | uint32_t cmd, did; | |
2768 | ||
2769 | icmd = &cmdiocb->iocb; | |
2770 | did = icmd->un.elsreq64.remoteID; | |
2771 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
2772 | lp = (uint32_t *) pcmd->virt; | |
2773 | ||
2774 | cmd = *lp++; | |
2775 | /* FARP-RSP received from DID <did> */ | |
2776 | lpfc_printf_log(phba, | |
2777 | KERN_INFO, | |
2778 | LOG_IP, | |
2779 | "%d:0600 FARP-RSP received from DID x%x\n", | |
2780 | phba->brd_no, did); | |
2781 | ||
2782 | /* ACCEPT the Farp resp request */ | |
2783 | lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0); | |
2784 | ||
2785 | return 0; | |
2786 | } | |
2787 | ||
2788 | static int | |
2789 | lpfc_els_rcv_fan(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb, | |
2790 | struct lpfc_nodelist * ndlp) | |
2791 | { | |
2792 | struct lpfc_dmabuf *pcmd; | |
2793 | uint32_t *lp; | |
2794 | IOCB_t *icmd; | |
2795 | FAN *fp; | |
2796 | uint32_t cmd, did; | |
2797 | ||
2798 | icmd = &cmdiocb->iocb; | |
2799 | did = icmd->un.elsreq64.remoteID; | |
2800 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
2801 | lp = (uint32_t *) pcmd->virt; | |
2802 | ||
2803 | cmd = *lp++; | |
2804 | fp = (FAN *) lp; | |
2805 | ||
2806 | /* FAN received */ | |
2807 | ||
2808 | /* ACCEPT the FAN request */ | |
2809 | lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0); | |
2810 | ||
2811 | if (phba->hba_state == LPFC_LOCAL_CFG_LINK) { | |
2812 | /* The discovery state machine needs to take a different | |
2813 | * action if this node has switched fabrics | |
2814 | */ | |
2815 | if ((memcmp(&fp->FportName, &phba->fc_fabparam.portName, | |
2816 | sizeof (struct lpfc_name)) != 0) | |
2817 | || | |
2818 | (memcmp(&fp->FnodeName, &phba->fc_fabparam.nodeName, | |
2819 | sizeof (struct lpfc_name)) != 0)) { | |
2820 | /* This node has switched fabrics. An FLOGI is required | |
2821 | * after the timeout | |
2822 | */ | |
2823 | return (0); | |
2824 | } | |
2825 | ||
2826 | /* Start discovery */ | |
2827 | lpfc_disc_start(phba); | |
2828 | } | |
2829 | ||
2830 | return (0); | |
2831 | } | |
2832 | ||
2833 | void | |
2834 | lpfc_els_timeout(unsigned long ptr) | |
2835 | { | |
2836 | struct lpfc_hba *phba; | |
2837 | unsigned long iflag; | |
2838 | ||
2839 | phba = (struct lpfc_hba *)ptr; | |
2840 | if (phba == 0) | |
2841 | return; | |
2842 | spin_lock_irqsave(phba->host->host_lock, iflag); | |
2843 | if (!(phba->work_hba_events & WORKER_ELS_TMO)) { | |
2844 | phba->work_hba_events |= WORKER_ELS_TMO; | |
2845 | if (phba->work_wait) | |
2846 | wake_up(phba->work_wait); | |
2847 | } | |
2848 | spin_unlock_irqrestore(phba->host->host_lock, iflag); | |
2849 | return; | |
2850 | } | |
2851 | ||
2852 | void | |
2853 | lpfc_els_timeout_handler(struct lpfc_hba *phba) | |
2854 | { | |
2855 | struct lpfc_sli_ring *pring; | |
2856 | struct lpfc_iocbq *tmp_iocb, *piocb; | |
2857 | IOCB_t *cmd = NULL; | |
2858 | struct lpfc_dmabuf *pcmd; | |
2859 | struct list_head *dlp; | |
2860 | uint32_t *elscmd; | |
2861 | uint32_t els_command; | |
2862 | uint32_t timeout; | |
2863 | uint32_t remote_ID; | |
2864 | ||
2865 | if (phba == 0) | |
2866 | return; | |
2867 | spin_lock_irq(phba->host->host_lock); | |
2868 | /* If the timer is already canceled do nothing */ | |
2869 | if (!(phba->work_hba_events & WORKER_ELS_TMO)) { | |
2870 | spin_unlock_irq(phba->host->host_lock); | |
2871 | return; | |
2872 | } | |
2873 | timeout = (uint32_t)(phba->fc_ratov << 1); | |
2874 | ||
2875 | pring = &phba->sli.ring[LPFC_ELS_RING]; | |
2876 | dlp = &pring->txcmplq; | |
2877 | ||
2878 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { | |
2879 | cmd = &piocb->iocb; | |
2880 | ||
2881 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) { | |
2882 | continue; | |
2883 | } | |
2884 | pcmd = (struct lpfc_dmabuf *) piocb->context2; | |
2885 | elscmd = (uint32_t *) (pcmd->virt); | |
2886 | els_command = *elscmd; | |
2887 | ||
2888 | if ((els_command == ELS_CMD_FARP) | |
2889 | || (els_command == ELS_CMD_FARPR)) { | |
2890 | continue; | |
2891 | } | |
2892 | ||
2893 | if (piocb->drvrTimeout > 0) { | |
2894 | if (piocb->drvrTimeout >= timeout) { | |
2895 | piocb->drvrTimeout -= timeout; | |
2896 | } else { | |
2897 | piocb->drvrTimeout = 0; | |
2898 | } | |
2899 | continue; | |
2900 | } | |
2901 | ||
2902 | list_del(&piocb->list); | |
2903 | pring->txcmplq_cnt--; | |
2904 | ||
2905 | if (cmd->ulpCommand == CMD_GEN_REQUEST64_CR) { | |
2906 | struct lpfc_nodelist *ndlp; | |
2907 | ||
2908 | ndlp = lpfc_findnode_rpi(phba, cmd->ulpContext); | |
2909 | remote_ID = ndlp->nlp_DID; | |
2910 | if (cmd->un.elsreq64.bdl.ulpIoTag32) { | |
2911 | lpfc_sli_issue_abort_iotag32(phba, | |
2912 | pring, piocb); | |
2913 | } | |
2914 | } else { | |
2915 | remote_ID = cmd->un.elsreq64.remoteID; | |
2916 | } | |
2917 | ||
2918 | lpfc_printf_log(phba, | |
2919 | KERN_ERR, | |
2920 | LOG_ELS, | |
2921 | "%d:0127 ELS timeout Data: x%x x%x x%x x%x\n", | |
2922 | phba->brd_no, els_command, | |
2923 | remote_ID, cmd->ulpCommand, cmd->ulpIoTag); | |
2924 | ||
2925 | /* | |
2926 | * The iocb has timed out; abort it. | |
2927 | */ | |
2928 | if (piocb->iocb_cmpl) { | |
2929 | cmd->ulpStatus = IOSTAT_LOCAL_REJECT; | |
2930 | cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; | |
2931 | spin_unlock_irq(phba->host->host_lock); | |
2932 | (piocb->iocb_cmpl) (phba, piocb, piocb); | |
2933 | spin_lock_irq(phba->host->host_lock); | |
604a3e30 JB |
2934 | } else |
2935 | lpfc_sli_release_iocbq(phba, piocb); | |
dea3101e JB |
2936 | } |
2937 | if (phba->sli.ring[LPFC_ELS_RING].txcmplq_cnt) { | |
2938 | phba->els_tmofunc.expires = jiffies + HZ * timeout; | |
2939 | add_timer(&phba->els_tmofunc); | |
2940 | } | |
2941 | spin_unlock_irq(phba->host->host_lock); | |
2942 | } | |
2943 | ||
2944 | void | |
2945 | lpfc_els_flush_cmd(struct lpfc_hba * phba) | |
2946 | { | |
2947 | struct lpfc_sli_ring *pring; | |
2948 | struct lpfc_iocbq *tmp_iocb, *piocb; | |
2949 | IOCB_t *cmd = NULL; | |
2950 | struct lpfc_dmabuf *pcmd; | |
2951 | uint32_t *elscmd; | |
2952 | uint32_t els_command; | |
2953 | uint32_t remote_ID; | |
2954 | ||
2955 | pring = &phba->sli.ring[LPFC_ELS_RING]; | |
2956 | spin_lock_irq(phba->host->host_lock); | |
2957 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) { | |
2958 | cmd = &piocb->iocb; | |
2959 | ||
2960 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) { | |
2961 | continue; | |
2962 | } | |
2963 | ||
2964 | /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */ | |
2965 | if ((cmd->ulpCommand == CMD_QUE_RING_BUF_CN) || | |
2966 | (cmd->ulpCommand == CMD_QUE_RING_BUF64_CN) || | |
2967 | (cmd->ulpCommand == CMD_CLOSE_XRI_CN) || | |
2968 | (cmd->ulpCommand == CMD_ABORT_XRI_CN)) { | |
2969 | continue; | |
2970 | } | |
2971 | ||
2972 | pcmd = (struct lpfc_dmabuf *) piocb->context2; | |
2973 | elscmd = (uint32_t *) (pcmd->virt); | |
2974 | els_command = *elscmd; | |
2975 | ||
2976 | if (cmd->ulpCommand == CMD_GEN_REQUEST64_CR) { | |
2977 | struct lpfc_nodelist *ndlp; | |
2978 | ||
2979 | ndlp = lpfc_findnode_rpi(phba, cmd->ulpContext); | |
2980 | remote_ID = ndlp->nlp_DID; | |
2981 | if (phba->hba_state == LPFC_HBA_READY) { | |
2982 | continue; | |
2983 | } | |
2984 | } else { | |
2985 | remote_ID = cmd->un.elsreq64.remoteID; | |
2986 | } | |
2987 | ||
2988 | list_del(&piocb->list); | |
2989 | pring->txcmplq_cnt--; | |
2990 | ||
2991 | cmd->ulpStatus = IOSTAT_LOCAL_REJECT; | |
2992 | cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; | |
2993 | ||
2994 | if (piocb->iocb_cmpl) { | |
2995 | spin_unlock_irq(phba->host->host_lock); | |
2996 | (piocb->iocb_cmpl) (phba, piocb, piocb); | |
2997 | spin_lock_irq(phba->host->host_lock); | |
2998 | } | |
2999 | else | |
604a3e30 | 3000 | lpfc_sli_release_iocbq(phba, piocb); |
dea3101e JB |
3001 | } |
3002 | ||
3003 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { | |
3004 | cmd = &piocb->iocb; | |
3005 | ||
3006 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) { | |
3007 | continue; | |
3008 | } | |
3009 | pcmd = (struct lpfc_dmabuf *) piocb->context2; | |
3010 | elscmd = (uint32_t *) (pcmd->virt); | |
3011 | els_command = *elscmd; | |
3012 | ||
3013 | if (cmd->ulpCommand == CMD_GEN_REQUEST64_CR) { | |
3014 | struct lpfc_nodelist *ndlp; | |
3015 | ||
3016 | ndlp = lpfc_findnode_rpi(phba, cmd->ulpContext); | |
3017 | remote_ID = ndlp->nlp_DID; | |
3018 | if (phba->hba_state == LPFC_HBA_READY) { | |
3019 | continue; | |
3020 | } | |
3021 | } else { | |
3022 | remote_ID = cmd->un.elsreq64.remoteID; | |
3023 | } | |
3024 | ||
3025 | list_del(&piocb->list); | |
3026 | pring->txcmplq_cnt--; | |
3027 | ||
3028 | cmd->ulpStatus = IOSTAT_LOCAL_REJECT; | |
3029 | cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; | |
3030 | ||
3031 | if (piocb->iocb_cmpl) { | |
3032 | spin_unlock_irq(phba->host->host_lock); | |
3033 | (piocb->iocb_cmpl) (phba, piocb, piocb); | |
3034 | spin_lock_irq(phba->host->host_lock); | |
3035 | } | |
3036 | else | |
604a3e30 | 3037 | lpfc_sli_release_iocbq(phba, piocb); |
dea3101e JB |
3038 | } |
3039 | spin_unlock_irq(phba->host->host_lock); | |
3040 | return; | |
3041 | } | |
3042 | ||
3043 | void | |
3044 | lpfc_els_unsol_event(struct lpfc_hba * phba, | |
3045 | struct lpfc_sli_ring * pring, struct lpfc_iocbq * elsiocb) | |
3046 | { | |
3047 | struct lpfc_sli *psli; | |
3048 | struct lpfc_nodelist *ndlp; | |
3049 | struct lpfc_dmabuf *mp; | |
3050 | uint32_t *lp; | |
3051 | IOCB_t *icmd; | |
3052 | struct ls_rjt stat; | |
3053 | uint32_t cmd; | |
3054 | uint32_t did; | |
3055 | uint32_t newnode; | |
3056 | uint32_t drop_cmd = 0; /* by default do NOT drop received cmd */ | |
3057 | uint32_t rjt_err = 0; | |
3058 | ||
3059 | psli = &phba->sli; | |
3060 | icmd = &elsiocb->iocb; | |
3061 | ||
3062 | if ((icmd->ulpStatus == IOSTAT_LOCAL_REJECT) && | |
3063 | ((icmd->un.ulpWord[4] & 0xff) == IOERR_RCV_BUFFER_WAITING)) { | |
3064 | /* Not enough posted buffers; Try posting more buffers */ | |
3065 | phba->fc_stat.NoRcvBuf++; | |
3066 | lpfc_post_buffer(phba, pring, 0, 1); | |
3067 | return; | |
3068 | } | |
3069 | ||
3070 | /* If there are no BDEs associated with this IOCB, | |
3071 | * there is nothing to do. | |
3072 | */ | |
3073 | if (icmd->ulpBdeCount == 0) | |
3074 | return; | |
3075 | ||
3076 | /* type of ELS cmd is first 32bit word in packet */ | |
3077 | mp = lpfc_sli_ringpostbuf_get(phba, pring, getPaddr(icmd->un. | |
3078 | cont64[0]. | |
3079 | addrHigh, | |
3080 | icmd->un. | |
3081 | cont64[0].addrLow)); | |
3082 | if (mp == 0) { | |
3083 | drop_cmd = 1; | |
3084 | goto dropit; | |
3085 | } | |
3086 | ||
3087 | newnode = 0; | |
3088 | lp = (uint32_t *) mp->virt; | |
3089 | cmd = *lp++; | |
3090 | lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], 1, 1); | |
3091 | ||
3092 | if (icmd->ulpStatus) { | |
3093 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
3094 | kfree(mp); | |
3095 | drop_cmd = 1; | |
3096 | goto dropit; | |
3097 | } | |
3098 | ||
3099 | /* Check to see if link went down during discovery */ | |
3100 | if (lpfc_els_chk_latt(phba)) { | |
3101 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
3102 | kfree(mp); | |
3103 | drop_cmd = 1; | |
3104 | goto dropit; | |
3105 | } | |
3106 | ||
3107 | did = icmd->un.rcvels.remoteID; | |
3108 | if ((ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, did)) == 0) { | |
3109 | /* Cannot find existing Fabric ndlp, so allocate a new one */ | |
3110 | if ((ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL)) | |
3111 | == 0) { | |
3112 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
3113 | kfree(mp); | |
3114 | drop_cmd = 1; | |
3115 | goto dropit; | |
3116 | } | |
3117 | ||
3118 | lpfc_nlp_init(phba, ndlp, did); | |
3119 | newnode = 1; | |
3120 | if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) { | |
3121 | ndlp->nlp_type |= NLP_FABRIC; | |
3122 | } | |
3123 | } | |
3124 | ||
3125 | phba->fc_stat.elsRcvFrame++; | |
3126 | elsiocb->context1 = ndlp; | |
3127 | elsiocb->context2 = mp; | |
3128 | ||
3129 | if ((cmd & ELS_CMD_MASK) == ELS_CMD_RSCN) { | |
3130 | cmd &= ELS_CMD_MASK; | |
3131 | } | |
3132 | /* ELS command <elsCmd> received from NPORT <did> */ | |
3133 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS, | |
3134 | "%d:0112 ELS command x%x received from NPORT x%x " | |
3135 | "Data: x%x\n", phba->brd_no, cmd, did, phba->hba_state); | |
3136 | ||
3137 | switch (cmd) { | |
3138 | case ELS_CMD_PLOGI: | |
3139 | phba->fc_stat.elsRcvPLOGI++; | |
3140 | if (phba->hba_state < LPFC_DISC_AUTH) { | |
1f679caf | 3141 | rjt_err = 1; |
dea3101e JB |
3142 | break; |
3143 | } | |
3144 | lpfc_disc_state_machine(phba, ndlp, elsiocb, NLP_EVT_RCV_PLOGI); | |
3145 | break; | |
3146 | case ELS_CMD_FLOGI: | |
3147 | phba->fc_stat.elsRcvFLOGI++; | |
3148 | lpfc_els_rcv_flogi(phba, elsiocb, ndlp, newnode); | |
3149 | if (newnode) { | |
3150 | mempool_free( ndlp, phba->nlp_mem_pool); | |
3151 | } | |
3152 | break; | |
3153 | case ELS_CMD_LOGO: | |
3154 | phba->fc_stat.elsRcvLOGO++; | |
3155 | if (phba->hba_state < LPFC_DISC_AUTH) { | |
1f679caf | 3156 | rjt_err = 1; |
dea3101e JB |
3157 | break; |
3158 | } | |
3159 | lpfc_disc_state_machine(phba, ndlp, elsiocb, NLP_EVT_RCV_LOGO); | |
3160 | break; | |
3161 | case ELS_CMD_PRLO: | |
3162 | phba->fc_stat.elsRcvPRLO++; | |
3163 | if (phba->hba_state < LPFC_DISC_AUTH) { | |
1f679caf | 3164 | rjt_err = 1; |
dea3101e JB |
3165 | break; |
3166 | } | |
3167 | lpfc_disc_state_machine(phba, ndlp, elsiocb, NLP_EVT_RCV_PRLO); | |
3168 | break; | |
3169 | case ELS_CMD_RSCN: | |
3170 | phba->fc_stat.elsRcvRSCN++; | |
3171 | lpfc_els_rcv_rscn(phba, elsiocb, ndlp, newnode); | |
3172 | if (newnode) { | |
3173 | mempool_free( ndlp, phba->nlp_mem_pool); | |
3174 | } | |
3175 | break; | |
3176 | case ELS_CMD_ADISC: | |
3177 | phba->fc_stat.elsRcvADISC++; | |
3178 | if (phba->hba_state < LPFC_DISC_AUTH) { | |
1f679caf | 3179 | rjt_err = 1; |
dea3101e JB |
3180 | break; |
3181 | } | |
3182 | lpfc_disc_state_machine(phba, ndlp, elsiocb, NLP_EVT_RCV_ADISC); | |
3183 | break; | |
3184 | case ELS_CMD_PDISC: | |
3185 | phba->fc_stat.elsRcvPDISC++; | |
3186 | if (phba->hba_state < LPFC_DISC_AUTH) { | |
1f679caf | 3187 | rjt_err = 1; |
dea3101e JB |
3188 | break; |
3189 | } | |
3190 | lpfc_disc_state_machine(phba, ndlp, elsiocb, NLP_EVT_RCV_PDISC); | |
3191 | break; | |
3192 | case ELS_CMD_FARPR: | |
3193 | phba->fc_stat.elsRcvFARPR++; | |
3194 | lpfc_els_rcv_farpr(phba, elsiocb, ndlp); | |
3195 | break; | |
3196 | case ELS_CMD_FARP: | |
3197 | phba->fc_stat.elsRcvFARP++; | |
3198 | lpfc_els_rcv_farp(phba, elsiocb, ndlp); | |
3199 | break; | |
3200 | case ELS_CMD_FAN: | |
3201 | phba->fc_stat.elsRcvFAN++; | |
3202 | lpfc_els_rcv_fan(phba, elsiocb, ndlp); | |
3203 | break; | |
3204 | case ELS_CMD_RRQ: | |
3205 | phba->fc_stat.elsRcvRRQ++; | |
3206 | lpfc_els_rcv_rrq(phba, elsiocb, ndlp); | |
3207 | break; | |
3208 | case ELS_CMD_PRLI: | |
3209 | phba->fc_stat.elsRcvPRLI++; | |
3210 | if (phba->hba_state < LPFC_DISC_AUTH) { | |
1f679caf | 3211 | rjt_err = 1; |
dea3101e JB |
3212 | break; |
3213 | } | |
3214 | lpfc_disc_state_machine(phba, ndlp, elsiocb, NLP_EVT_RCV_PRLI); | |
3215 | break; | |
3216 | case ELS_CMD_RNID: | |
3217 | phba->fc_stat.elsRcvRNID++; | |
3218 | lpfc_els_rcv_rnid(phba, elsiocb, ndlp); | |
3219 | break; | |
3220 | default: | |
3221 | /* Unsupported ELS command, reject */ | |
1f679caf | 3222 | rjt_err = 1; |
dea3101e JB |
3223 | |
3224 | /* Unknown ELS command <elsCmd> received from NPORT <did> */ | |
3225 | lpfc_printf_log(phba, KERN_ERR, LOG_ELS, | |
3226 | "%d:0115 Unknown ELS command x%x received from " | |
3227 | "NPORT x%x\n", phba->brd_no, cmd, did); | |
3228 | if (newnode) { | |
3229 | mempool_free( ndlp, phba->nlp_mem_pool); | |
3230 | } | |
3231 | break; | |
3232 | } | |
3233 | ||
3234 | /* check if need to LS_RJT received ELS cmd */ | |
3235 | if (rjt_err) { | |
3236 | stat.un.b.lsRjtRsvd0 = 0; | |
3237 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
1f679caf | 3238 | stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; |
dea3101e JB |
3239 | stat.un.b.vendorUnique = 0; |
3240 | lpfc_els_rsp_reject(phba, stat.un.lsRjtError, elsiocb, ndlp); | |
3241 | } | |
3242 | ||
3243 | if (elsiocb->context2) { | |
3244 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
3245 | kfree(mp); | |
3246 | } | |
3247 | dropit: | |
3248 | /* check if need to drop received ELS cmd */ | |
3249 | if (drop_cmd == 1) { | |
3250 | lpfc_printf_log(phba, KERN_ERR, LOG_ELS, | |
3251 | "%d:0111 Dropping received ELS cmd " | |
3252 | "Data: x%x x%x\n", phba->brd_no, | |
3253 | icmd->ulpStatus, icmd->un.ulpWord[4]); | |
3254 | phba->fc_stat.elsRcvDrop++; | |
3255 | } | |
3256 | return; | |
3257 | } |