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dea3101e JB |
1 | /******************************************************************* |
2 | * This file is part of the Emulex Linux Device Driver for * | |
c44ce173 | 3 | * Fibre Channel Host Bus Adapters. * |
d4379acd | 4 | * Copyright (C) 2004-2012 Emulex. All rights reserved. * |
c44ce173 | 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 | 20 | *******************************************************************/ |
09372820 | 21 | /* See Fibre Channel protocol T11 FC-LS for details */ |
dea3101e JB |
22 | #include <linux/blkdev.h> |
23 | #include <linux/pci.h> | |
5a0e3ad6 | 24 | #include <linux/slab.h> |
dea3101e JB |
25 | #include <linux/interrupt.h> |
26 | ||
91886523 | 27 | #include <scsi/scsi.h> |
dea3101e JB |
28 | #include <scsi/scsi_device.h> |
29 | #include <scsi/scsi_host.h> | |
30 | #include <scsi/scsi_transport_fc.h> | |
31 | ||
da0436e9 | 32 | #include "lpfc_hw4.h" |
dea3101e JB |
33 | #include "lpfc_hw.h" |
34 | #include "lpfc_sli.h" | |
da0436e9 | 35 | #include "lpfc_sli4.h" |
ea2151b4 | 36 | #include "lpfc_nl.h" |
dea3101e JB |
37 | #include "lpfc_disc.h" |
38 | #include "lpfc_scsi.h" | |
39 | #include "lpfc.h" | |
40 | #include "lpfc_logmsg.h" | |
41 | #include "lpfc_crtn.h" | |
92d7f7b0 | 42 | #include "lpfc_vport.h" |
858c9f6c | 43 | #include "lpfc_debugfs.h" |
dea3101e JB |
44 | |
45 | static int lpfc_els_retry(struct lpfc_hba *, struct lpfc_iocbq *, | |
46 | struct lpfc_iocbq *); | |
92d7f7b0 JS |
47 | static void lpfc_cmpl_fabric_iocb(struct lpfc_hba *, struct lpfc_iocbq *, |
48 | struct lpfc_iocbq *); | |
a6ababd2 AB |
49 | static void lpfc_fabric_abort_vport(struct lpfc_vport *vport); |
50 | static int lpfc_issue_els_fdisc(struct lpfc_vport *vport, | |
51 | struct lpfc_nodelist *ndlp, uint8_t retry); | |
52 | static int lpfc_issue_fabric_iocb(struct lpfc_hba *phba, | |
53 | struct lpfc_iocbq *iocb); | |
92d7f7b0 | 54 | |
dea3101e JB |
55 | static int lpfc_max_els_tries = 3; |
56 | ||
e59058c4 | 57 | /** |
3621a710 | 58 | * lpfc_els_chk_latt - Check host link attention event for a vport |
e59058c4 JS |
59 | * @vport: pointer to a host virtual N_Port data structure. |
60 | * | |
61 | * This routine checks whether there is an outstanding host link | |
62 | * attention event during the discovery process with the @vport. It is done | |
63 | * by reading the HBA's Host Attention (HA) register. If there is any host | |
64 | * link attention events during this @vport's discovery process, the @vport | |
65 | * shall be marked as FC_ABORT_DISCOVERY, a host link attention clear shall | |
66 | * be issued if the link state is not already in host link cleared state, | |
67 | * and a return code shall indicate whether the host link attention event | |
68 | * had happened. | |
69 | * | |
70 | * Note that, if either the host link is in state LPFC_LINK_DOWN or @vport | |
71 | * state in LPFC_VPORT_READY, the request for checking host link attention | |
72 | * event will be ignored and a return code shall indicate no host link | |
73 | * attention event had happened. | |
74 | * | |
75 | * Return codes | |
76 | * 0 - no host link attention event happened | |
77 | * 1 - host link attention event happened | |
78 | **/ | |
858c9f6c | 79 | int |
2e0fef85 | 80 | lpfc_els_chk_latt(struct lpfc_vport *vport) |
dea3101e | 81 | { |
2e0fef85 JS |
82 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
83 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 84 | uint32_t ha_copy; |
dea3101e | 85 | |
2e0fef85 | 86 | if (vport->port_state >= LPFC_VPORT_READY || |
3772a991 JS |
87 | phba->link_state == LPFC_LINK_DOWN || |
88 | phba->sli_rev > LPFC_SLI_REV3) | |
dea3101e JB |
89 | return 0; |
90 | ||
91 | /* Read the HBA Host Attention Register */ | |
9940b97b JS |
92 | if (lpfc_readl(phba->HAregaddr, &ha_copy)) |
93 | return 1; | |
dea3101e JB |
94 | |
95 | if (!(ha_copy & HA_LATT)) | |
96 | return 0; | |
97 | ||
98 | /* Pending Link Event during Discovery */ | |
e8b62011 JS |
99 | lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, |
100 | "0237 Pending Link Event during " | |
101 | "Discovery: State x%x\n", | |
102 | phba->pport->port_state); | |
dea3101e JB |
103 | |
104 | /* CLEAR_LA should re-enable link attention events and | |
25985edc | 105 | * we should then immediately take a LATT event. The |
dea3101e JB |
106 | * LATT processing should call lpfc_linkdown() which |
107 | * will cleanup any left over in-progress discovery | |
108 | * events. | |
109 | */ | |
2e0fef85 JS |
110 | spin_lock_irq(shost->host_lock); |
111 | vport->fc_flag |= FC_ABORT_DISCOVERY; | |
112 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 113 | |
92d7f7b0 | 114 | if (phba->link_state != LPFC_CLEAR_LA) |
ed957684 | 115 | lpfc_issue_clear_la(phba, vport); |
dea3101e | 116 | |
c9f8735b | 117 | return 1; |
dea3101e JB |
118 | } |
119 | ||
e59058c4 | 120 | /** |
3621a710 | 121 | * lpfc_prep_els_iocb - Allocate and prepare a lpfc iocb data structure |
e59058c4 JS |
122 | * @vport: pointer to a host virtual N_Port data structure. |
123 | * @expectRsp: flag indicating whether response is expected. | |
124 | * @cmdSize: size of the ELS command. | |
125 | * @retry: number of retries to the command IOCB when it fails. | |
126 | * @ndlp: pointer to a node-list data structure. | |
127 | * @did: destination identifier. | |
128 | * @elscmd: the ELS command code. | |
129 | * | |
130 | * This routine is used for allocating a lpfc-IOCB data structure from | |
131 | * the driver lpfc-IOCB free-list and prepare the IOCB with the parameters | |
132 | * passed into the routine for discovery state machine to issue an Extended | |
133 | * Link Service (ELS) commands. It is a generic lpfc-IOCB allocation | |
134 | * and preparation routine that is used by all the discovery state machine | |
135 | * routines and the ELS command-specific fields will be later set up by | |
136 | * the individual discovery machine routines after calling this routine | |
137 | * allocating and preparing a generic IOCB data structure. It fills in the | |
138 | * Buffer Descriptor Entries (BDEs), allocates buffers for both command | |
139 | * payload and response payload (if expected). The reference count on the | |
140 | * ndlp is incremented by 1 and the reference to the ndlp is put into | |
141 | * context1 of the IOCB data structure for this IOCB to hold the ndlp | |
142 | * reference for the command's callback function to access later. | |
143 | * | |
144 | * Return code | |
145 | * Pointer to the newly allocated/prepared els iocb data structure | |
146 | * NULL - when els iocb data structure allocation/preparation failed | |
147 | **/ | |
f1c3b0fc | 148 | struct lpfc_iocbq * |
2e0fef85 JS |
149 | lpfc_prep_els_iocb(struct lpfc_vport *vport, uint8_t expectRsp, |
150 | uint16_t cmdSize, uint8_t retry, | |
151 | struct lpfc_nodelist *ndlp, uint32_t did, | |
152 | uint32_t elscmd) | |
dea3101e | 153 | { |
2e0fef85 | 154 | struct lpfc_hba *phba = vport->phba; |
0bd4ca25 | 155 | struct lpfc_iocbq *elsiocb; |
dea3101e JB |
156 | struct lpfc_dmabuf *pcmd, *prsp, *pbuflist; |
157 | struct ulp_bde64 *bpl; | |
158 | IOCB_t *icmd; | |
159 | ||
dea3101e | 160 | |
2e0fef85 JS |
161 | if (!lpfc_is_link_up(phba)) |
162 | return NULL; | |
dea3101e | 163 | |
dea3101e | 164 | /* Allocate buffer for command iocb */ |
0bd4ca25 | 165 | elsiocb = lpfc_sli_get_iocbq(phba); |
dea3101e JB |
166 | |
167 | if (elsiocb == NULL) | |
168 | return NULL; | |
e47c9093 | 169 | |
0c287589 JS |
170 | /* |
171 | * If this command is for fabric controller and HBA running | |
172 | * in FIP mode send FLOGI, FDISC and LOGO as FIP frames. | |
173 | */ | |
174 | if ((did == Fabric_DID) && | |
45ed1190 | 175 | (phba->hba_flag & HBA_FIP_SUPPORT) && |
0c287589 JS |
176 | ((elscmd == ELS_CMD_FLOGI) || |
177 | (elscmd == ELS_CMD_FDISC) || | |
178 | (elscmd == ELS_CMD_LOGO))) | |
c868595d JS |
179 | switch (elscmd) { |
180 | case ELS_CMD_FLOGI: | |
f0d9bccc JS |
181 | elsiocb->iocb_flag |= |
182 | ((LPFC_ELS_ID_FLOGI << LPFC_FIP_ELS_ID_SHIFT) | |
c868595d JS |
183 | & LPFC_FIP_ELS_ID_MASK); |
184 | break; | |
185 | case ELS_CMD_FDISC: | |
f0d9bccc JS |
186 | elsiocb->iocb_flag |= |
187 | ((LPFC_ELS_ID_FDISC << LPFC_FIP_ELS_ID_SHIFT) | |
c868595d JS |
188 | & LPFC_FIP_ELS_ID_MASK); |
189 | break; | |
190 | case ELS_CMD_LOGO: | |
f0d9bccc JS |
191 | elsiocb->iocb_flag |= |
192 | ((LPFC_ELS_ID_LOGO << LPFC_FIP_ELS_ID_SHIFT) | |
c868595d JS |
193 | & LPFC_FIP_ELS_ID_MASK); |
194 | break; | |
195 | } | |
0c287589 | 196 | else |
c868595d | 197 | elsiocb->iocb_flag &= ~LPFC_FIP_ELS_ID_MASK; |
0c287589 | 198 | |
dea3101e JB |
199 | icmd = &elsiocb->iocb; |
200 | ||
201 | /* fill in BDEs for command */ | |
202 | /* Allocate buffer for command payload */ | |
98c9ea5c JS |
203 | pcmd = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
204 | if (pcmd) | |
205 | pcmd->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &pcmd->phys); | |
fa4066b6 JS |
206 | if (!pcmd || !pcmd->virt) |
207 | goto els_iocb_free_pcmb_exit; | |
dea3101e JB |
208 | |
209 | INIT_LIST_HEAD(&pcmd->list); | |
210 | ||
211 | /* Allocate buffer for response payload */ | |
212 | if (expectRsp) { | |
92d7f7b0 | 213 | prsp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
dea3101e JB |
214 | if (prsp) |
215 | prsp->virt = lpfc_mbuf_alloc(phba, MEM_PRI, | |
216 | &prsp->phys); | |
fa4066b6 JS |
217 | if (!prsp || !prsp->virt) |
218 | goto els_iocb_free_prsp_exit; | |
dea3101e | 219 | INIT_LIST_HEAD(&prsp->list); |
e47c9093 | 220 | } else |
dea3101e | 221 | prsp = NULL; |
dea3101e JB |
222 | |
223 | /* Allocate buffer for Buffer ptr list */ | |
92d7f7b0 | 224 | pbuflist = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
dea3101e | 225 | if (pbuflist) |
ed957684 JS |
226 | pbuflist->virt = lpfc_mbuf_alloc(phba, MEM_PRI, |
227 | &pbuflist->phys); | |
fa4066b6 JS |
228 | if (!pbuflist || !pbuflist->virt) |
229 | goto els_iocb_free_pbuf_exit; | |
dea3101e JB |
230 | |
231 | INIT_LIST_HEAD(&pbuflist->list); | |
232 | ||
dea3101e | 233 | if (expectRsp) { |
939723a4 JS |
234 | icmd->un.elsreq64.bdl.addrHigh = putPaddrHigh(pbuflist->phys); |
235 | icmd->un.elsreq64.bdl.addrLow = putPaddrLow(pbuflist->phys); | |
236 | icmd->un.elsreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; | |
92d7f7b0 | 237 | icmd->un.elsreq64.bdl.bdeSize = (2 * sizeof(struct ulp_bde64)); |
939723a4 JS |
238 | |
239 | icmd->un.elsreq64.remoteID = did; /* DID */ | |
dea3101e | 240 | icmd->ulpCommand = CMD_ELS_REQUEST64_CR; |
2680eeaa | 241 | icmd->ulpTimeout = phba->fc_ratov * 2; |
dea3101e | 242 | } else { |
939723a4 JS |
243 | icmd->un.xseq64.bdl.addrHigh = putPaddrHigh(pbuflist->phys); |
244 | icmd->un.xseq64.bdl.addrLow = putPaddrLow(pbuflist->phys); | |
245 | icmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; | |
246 | icmd->un.xseq64.bdl.bdeSize = sizeof(struct ulp_bde64); | |
247 | icmd->un.xseq64.xmit_els_remoteID = did; /* DID */ | |
dea3101e JB |
248 | icmd->ulpCommand = CMD_XMIT_ELS_RSP64_CX; |
249 | } | |
dea3101e JB |
250 | icmd->ulpBdeCount = 1; |
251 | icmd->ulpLe = 1; | |
252 | icmd->ulpClass = CLASS3; | |
253 | ||
939723a4 JS |
254 | /* |
255 | * If we have NPIV enabled, we want to send ELS traffic by VPI. | |
256 | * For SLI4, since the driver controls VPIs we also want to include | |
257 | * all ELS pt2pt protocol traffic as well. | |
258 | */ | |
259 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) || | |
260 | ((phba->sli_rev == LPFC_SLI_REV4) && | |
261 | (vport->fc_flag & FC_PT2PT))) { | |
262 | ||
263 | if (expectRsp) { | |
264 | icmd->un.elsreq64.myID = vport->fc_myDID; | |
265 | ||
266 | /* For ELS_REQUEST64_CR, use the VPI by default */ | |
267 | icmd->ulpContext = phba->vpi_ids[vport->vpi]; | |
268 | } | |
92d7f7b0 | 269 | |
92d7f7b0 | 270 | icmd->ulpCt_h = 0; |
eada272d JS |
271 | /* The CT field must be 0=INVALID_RPI for the ECHO cmd */ |
272 | if (elscmd == ELS_CMD_ECHO) | |
273 | icmd->ulpCt_l = 0; /* context = invalid RPI */ | |
274 | else | |
275 | icmd->ulpCt_l = 1; /* context = VPI */ | |
92d7f7b0 JS |
276 | } |
277 | ||
dea3101e JB |
278 | bpl = (struct ulp_bde64 *) pbuflist->virt; |
279 | bpl->addrLow = le32_to_cpu(putPaddrLow(pcmd->phys)); | |
280 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(pcmd->phys)); | |
281 | bpl->tus.f.bdeSize = cmdSize; | |
282 | bpl->tus.f.bdeFlags = 0; | |
283 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
284 | ||
285 | if (expectRsp) { | |
286 | bpl++; | |
287 | bpl->addrLow = le32_to_cpu(putPaddrLow(prsp->phys)); | |
288 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(prsp->phys)); | |
289 | bpl->tus.f.bdeSize = FCELSSIZE; | |
34b02dcd | 290 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; |
dea3101e JB |
291 | bpl->tus.w = le32_to_cpu(bpl->tus.w); |
292 | } | |
293 | ||
fa4066b6 | 294 | /* prevent preparing iocb with NULL ndlp reference */ |
51ef4c26 | 295 | elsiocb->context1 = lpfc_nlp_get(ndlp); |
fa4066b6 JS |
296 | if (!elsiocb->context1) |
297 | goto els_iocb_free_pbuf_exit; | |
329f9bc7 JS |
298 | elsiocb->context2 = pcmd; |
299 | elsiocb->context3 = pbuflist; | |
dea3101e | 300 | elsiocb->retry = retry; |
2e0fef85 | 301 | elsiocb->vport = vport; |
dea3101e JB |
302 | elsiocb->drvrTimeout = (phba->fc_ratov << 1) + LPFC_DRVR_TIMEOUT; |
303 | ||
304 | if (prsp) { | |
305 | list_add(&prsp->list, &pcmd->list); | |
306 | } | |
dea3101e JB |
307 | if (expectRsp) { |
308 | /* Xmit ELS command <elsCmd> to remote NPORT <did> */ | |
e8b62011 JS |
309 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
310 | "0116 Xmit ELS command x%x to remote " | |
311 | "NPORT x%x I/O tag: x%x, port state: x%x\n", | |
312 | elscmd, did, elsiocb->iotag, | |
313 | vport->port_state); | |
dea3101e JB |
314 | } else { |
315 | /* Xmit ELS response <elsCmd> to remote NPORT <did> */ | |
e8b62011 JS |
316 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
317 | "0117 Xmit ELS response x%x to remote " | |
318 | "NPORT x%x I/O tag: x%x, size: x%x\n", | |
319 | elscmd, ndlp->nlp_DID, elsiocb->iotag, | |
320 | cmdSize); | |
dea3101e | 321 | } |
c9f8735b | 322 | return elsiocb; |
dea3101e | 323 | |
fa4066b6 | 324 | els_iocb_free_pbuf_exit: |
eaf15d5b JS |
325 | if (expectRsp) |
326 | lpfc_mbuf_free(phba, prsp->virt, prsp->phys); | |
fa4066b6 JS |
327 | kfree(pbuflist); |
328 | ||
329 | els_iocb_free_prsp_exit: | |
330 | lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys); | |
331 | kfree(prsp); | |
332 | ||
333 | els_iocb_free_pcmb_exit: | |
334 | kfree(pcmd); | |
335 | lpfc_sli_release_iocbq(phba, elsiocb); | |
336 | return NULL; | |
337 | } | |
dea3101e | 338 | |
e59058c4 | 339 | /** |
3621a710 | 340 | * lpfc_issue_fabric_reglogin - Issue fabric registration login for a vport |
e59058c4 JS |
341 | * @vport: pointer to a host virtual N_Port data structure. |
342 | * | |
343 | * This routine issues a fabric registration login for a @vport. An | |
344 | * active ndlp node with Fabric_DID must already exist for this @vport. | |
345 | * The routine invokes two mailbox commands to carry out fabric registration | |
346 | * login through the HBA firmware: the first mailbox command requests the | |
347 | * HBA to perform link configuration for the @vport; and the second mailbox | |
348 | * command requests the HBA to perform the actual fabric registration login | |
349 | * with the @vport. | |
350 | * | |
351 | * Return code | |
352 | * 0 - successfully issued fabric registration login for @vport | |
353 | * -ENXIO -- failed to issue fabric registration login for @vport | |
354 | **/ | |
3772a991 | 355 | int |
92d7f7b0 | 356 | lpfc_issue_fabric_reglogin(struct lpfc_vport *vport) |
dea3101e | 357 | { |
2e0fef85 | 358 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 359 | LPFC_MBOXQ_t *mbox; |
14691150 | 360 | struct lpfc_dmabuf *mp; |
92d7f7b0 JS |
361 | struct lpfc_nodelist *ndlp; |
362 | struct serv_parm *sp; | |
dea3101e | 363 | int rc; |
98c9ea5c | 364 | int err = 0; |
dea3101e | 365 | |
92d7f7b0 JS |
366 | sp = &phba->fc_fabparam; |
367 | ndlp = lpfc_findnode_did(vport, Fabric_DID); | |
e47c9093 | 368 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { |
98c9ea5c | 369 | err = 1; |
92d7f7b0 | 370 | goto fail; |
98c9ea5c | 371 | } |
92d7f7b0 JS |
372 | |
373 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
98c9ea5c JS |
374 | if (!mbox) { |
375 | err = 2; | |
92d7f7b0 | 376 | goto fail; |
98c9ea5c | 377 | } |
92d7f7b0 JS |
378 | |
379 | vport->port_state = LPFC_FABRIC_CFG_LINK; | |
380 | lpfc_config_link(phba, mbox); | |
381 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
382 | mbox->vport = vport; | |
383 | ||
0b727fea | 384 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
98c9ea5c JS |
385 | if (rc == MBX_NOT_FINISHED) { |
386 | err = 3; | |
92d7f7b0 | 387 | goto fail_free_mbox; |
98c9ea5c | 388 | } |
92d7f7b0 JS |
389 | |
390 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
98c9ea5c JS |
391 | if (!mbox) { |
392 | err = 4; | |
92d7f7b0 | 393 | goto fail; |
98c9ea5c | 394 | } |
4042629e JS |
395 | rc = lpfc_reg_rpi(phba, vport->vpi, Fabric_DID, (uint8_t *)sp, mbox, |
396 | ndlp->nlp_rpi); | |
98c9ea5c JS |
397 | if (rc) { |
398 | err = 5; | |
92d7f7b0 | 399 | goto fail_free_mbox; |
98c9ea5c | 400 | } |
92d7f7b0 JS |
401 | |
402 | mbox->mbox_cmpl = lpfc_mbx_cmpl_fabric_reg_login; | |
403 | mbox->vport = vport; | |
e47c9093 JS |
404 | /* increment the reference count on ndlp to hold reference |
405 | * for the callback routine. | |
406 | */ | |
92d7f7b0 JS |
407 | mbox->context2 = lpfc_nlp_get(ndlp); |
408 | ||
0b727fea | 409 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
98c9ea5c JS |
410 | if (rc == MBX_NOT_FINISHED) { |
411 | err = 6; | |
92d7f7b0 | 412 | goto fail_issue_reg_login; |
98c9ea5c | 413 | } |
92d7f7b0 JS |
414 | |
415 | return 0; | |
416 | ||
417 | fail_issue_reg_login: | |
e47c9093 JS |
418 | /* decrement the reference count on ndlp just incremented |
419 | * for the failed mbox command. | |
420 | */ | |
92d7f7b0 JS |
421 | lpfc_nlp_put(ndlp); |
422 | mp = (struct lpfc_dmabuf *) mbox->context1; | |
423 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
424 | kfree(mp); | |
425 | fail_free_mbox: | |
426 | mempool_free(mbox, phba->mbox_mem_pool); | |
427 | ||
428 | fail: | |
429 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
e8b62011 | 430 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
98c9ea5c | 431 | "0249 Cannot issue Register Fabric login: Err %d\n", err); |
92d7f7b0 JS |
432 | return -ENXIO; |
433 | } | |
434 | ||
6fb120a7 JS |
435 | /** |
436 | * lpfc_issue_reg_vfi - Register VFI for this vport's fabric login | |
437 | * @vport: pointer to a host virtual N_Port data structure. | |
438 | * | |
439 | * This routine issues a REG_VFI mailbox for the vfi, vpi, fcfi triplet for | |
1b51197d | 440 | * the @vport. This mailbox command is necessary for SLI4 port only. |
6fb120a7 JS |
441 | * |
442 | * Return code | |
443 | * 0 - successfully issued REG_VFI for @vport | |
444 | * A failure code otherwise. | |
445 | **/ | |
1b51197d | 446 | int |
6fb120a7 JS |
447 | lpfc_issue_reg_vfi(struct lpfc_vport *vport) |
448 | { | |
449 | struct lpfc_hba *phba = vport->phba; | |
450 | LPFC_MBOXQ_t *mboxq; | |
451 | struct lpfc_nodelist *ndlp; | |
452 | struct serv_parm *sp; | |
453 | struct lpfc_dmabuf *dmabuf; | |
454 | int rc = 0; | |
455 | ||
456 | sp = &phba->fc_fabparam; | |
939723a4 | 457 | /* move forward in case of SLI4 FC port loopback test and pt2pt mode */ |
1b51197d | 458 | if ((phba->sli_rev == LPFC_SLI_REV4) && |
939723a4 JS |
459 | !(phba->link_flag & LS_LOOPBACK_MODE) && |
460 | !(vport->fc_flag & FC_PT2PT)) { | |
1b51197d JS |
461 | ndlp = lpfc_findnode_did(vport, Fabric_DID); |
462 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { | |
463 | rc = -ENODEV; | |
464 | goto fail; | |
465 | } | |
6fb120a7 JS |
466 | } |
467 | ||
468 | dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
469 | if (!dmabuf) { | |
470 | rc = -ENOMEM; | |
471 | goto fail; | |
472 | } | |
473 | dmabuf->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &dmabuf->phys); | |
474 | if (!dmabuf->virt) { | |
475 | rc = -ENOMEM; | |
476 | goto fail_free_dmabuf; | |
477 | } | |
6d368e53 | 478 | |
6fb120a7 JS |
479 | mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
480 | if (!mboxq) { | |
481 | rc = -ENOMEM; | |
482 | goto fail_free_coherent; | |
483 | } | |
484 | vport->port_state = LPFC_FABRIC_CFG_LINK; | |
485 | memcpy(dmabuf->virt, &phba->fc_fabparam, sizeof(vport->fc_sparam)); | |
486 | lpfc_reg_vfi(mboxq, vport, dmabuf->phys); | |
487 | mboxq->mbox_cmpl = lpfc_mbx_cmpl_reg_vfi; | |
488 | mboxq->vport = vport; | |
489 | mboxq->context1 = dmabuf; | |
490 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); | |
491 | if (rc == MBX_NOT_FINISHED) { | |
492 | rc = -ENXIO; | |
493 | goto fail_free_mbox; | |
494 | } | |
495 | return 0; | |
496 | ||
497 | fail_free_mbox: | |
498 | mempool_free(mboxq, phba->mbox_mem_pool); | |
499 | fail_free_coherent: | |
500 | lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys); | |
501 | fail_free_dmabuf: | |
502 | kfree(dmabuf); | |
503 | fail: | |
504 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
505 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
506 | "0289 Issue Register VFI failed: Err %d\n", rc); | |
507 | return rc; | |
508 | } | |
509 | ||
1b51197d JS |
510 | /** |
511 | * lpfc_issue_unreg_vfi - Unregister VFI for this vport's fabric login | |
512 | * @vport: pointer to a host virtual N_Port data structure. | |
513 | * | |
514 | * This routine issues a UNREG_VFI mailbox with the vfi, vpi, fcfi triplet for | |
515 | * the @vport. This mailbox command is necessary for SLI4 port only. | |
516 | * | |
517 | * Return code | |
518 | * 0 - successfully issued REG_VFI for @vport | |
519 | * A failure code otherwise. | |
520 | **/ | |
521 | int | |
522 | lpfc_issue_unreg_vfi(struct lpfc_vport *vport) | |
523 | { | |
524 | struct lpfc_hba *phba = vport->phba; | |
525 | struct Scsi_Host *shost; | |
526 | LPFC_MBOXQ_t *mboxq; | |
527 | int rc; | |
528 | ||
529 | mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
530 | if (!mboxq) { | |
531 | lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, | |
532 | "2556 UNREG_VFI mbox allocation failed" | |
533 | "HBA state x%x\n", phba->pport->port_state); | |
534 | return -ENOMEM; | |
535 | } | |
536 | ||
537 | lpfc_unreg_vfi(mboxq, vport); | |
538 | mboxq->vport = vport; | |
539 | mboxq->mbox_cmpl = lpfc_unregister_vfi_cmpl; | |
540 | ||
541 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); | |
542 | if (rc == MBX_NOT_FINISHED) { | |
543 | lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, | |
544 | "2557 UNREG_VFI issue mbox failed rc x%x " | |
545 | "HBA state x%x\n", | |
546 | rc, phba->pport->port_state); | |
547 | mempool_free(mboxq, phba->mbox_mem_pool); | |
548 | return -EIO; | |
549 | } | |
550 | ||
551 | shost = lpfc_shost_from_vport(vport); | |
552 | spin_lock_irq(shost->host_lock); | |
553 | vport->fc_flag &= ~FC_VFI_REGISTERED; | |
554 | spin_unlock_irq(shost->host_lock); | |
555 | return 0; | |
556 | } | |
557 | ||
92494144 JS |
558 | /** |
559 | * lpfc_check_clean_addr_bit - Check whether assigned FCID is clean. | |
560 | * @vport: pointer to a host virtual N_Port data structure. | |
561 | * @sp: pointer to service parameter data structure. | |
562 | * | |
563 | * This routine is called from FLOGI/FDISC completion handler functions. | |
564 | * lpfc_check_clean_addr_bit return 1 when FCID/Fabric portname/ Fabric | |
565 | * node nodename is changed in the completion service parameter else return | |
566 | * 0. This function also set flag in the vport data structure to delay | |
567 | * NP_Port discovery after the FLOGI/FDISC completion if Clean address bit | |
568 | * in FLOGI/FDISC response is cleared and FCID/Fabric portname/ Fabric | |
569 | * node nodename is changed in the completion service parameter. | |
570 | * | |
571 | * Return code | |
572 | * 0 - FCID and Fabric Nodename and Fabric portname is not changed. | |
573 | * 1 - FCID or Fabric Nodename or Fabric portname is changed. | |
574 | * | |
575 | **/ | |
576 | static uint8_t | |
577 | lpfc_check_clean_addr_bit(struct lpfc_vport *vport, | |
578 | struct serv_parm *sp) | |
579 | { | |
580 | uint8_t fabric_param_changed = 0; | |
581 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
582 | ||
583 | if ((vport->fc_prevDID != vport->fc_myDID) || | |
584 | memcmp(&vport->fabric_portname, &sp->portName, | |
585 | sizeof(struct lpfc_name)) || | |
586 | memcmp(&vport->fabric_nodename, &sp->nodeName, | |
587 | sizeof(struct lpfc_name))) | |
588 | fabric_param_changed = 1; | |
589 | ||
590 | /* | |
591 | * Word 1 Bit 31 in common service parameter is overloaded. | |
592 | * Word 1 Bit 31 in FLOGI request is multiple NPort request | |
593 | * Word 1 Bit 31 in FLOGI response is clean address bit | |
594 | * | |
595 | * If fabric parameter is changed and clean address bit is | |
596 | * cleared delay nport discovery if | |
597 | * - vport->fc_prevDID != 0 (not initial discovery) OR | |
598 | * - lpfc_delay_discovery module parameter is set. | |
599 | */ | |
600 | if (fabric_param_changed && !sp->cmn.clean_address_bit && | |
601 | (vport->fc_prevDID || lpfc_delay_discovery)) { | |
602 | spin_lock_irq(shost->host_lock); | |
603 | vport->fc_flag |= FC_DISC_DELAYED; | |
604 | spin_unlock_irq(shost->host_lock); | |
605 | } | |
606 | ||
607 | return fabric_param_changed; | |
608 | } | |
609 | ||
610 | ||
e59058c4 | 611 | /** |
3621a710 | 612 | * lpfc_cmpl_els_flogi_fabric - Completion function for flogi to a fabric port |
e59058c4 JS |
613 | * @vport: pointer to a host virtual N_Port data structure. |
614 | * @ndlp: pointer to a node-list data structure. | |
615 | * @sp: pointer to service parameter data structure. | |
616 | * @irsp: pointer to the IOCB within the lpfc response IOCB. | |
617 | * | |
618 | * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback | |
619 | * function to handle the completion of a Fabric Login (FLOGI) into a fabric | |
620 | * port in a fabric topology. It properly sets up the parameters to the @ndlp | |
621 | * from the IOCB response. It also check the newly assigned N_Port ID to the | |
622 | * @vport against the previously assigned N_Port ID. If it is different from | |
623 | * the previously assigned Destination ID (DID), the lpfc_unreg_rpi() routine | |
624 | * is invoked on all the remaining nodes with the @vport to unregister the | |
625 | * Remote Port Indicators (RPIs). Finally, the lpfc_issue_fabric_reglogin() | |
626 | * is invoked to register login to the fabric. | |
627 | * | |
628 | * Return code | |
629 | * 0 - Success (currently, always return 0) | |
630 | **/ | |
92d7f7b0 JS |
631 | static int |
632 | lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, | |
633 | struct serv_parm *sp, IOCB_t *irsp) | |
634 | { | |
635 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
636 | struct lpfc_hba *phba = vport->phba; | |
637 | struct lpfc_nodelist *np; | |
638 | struct lpfc_nodelist *next_np; | |
92494144 | 639 | uint8_t fabric_param_changed; |
92d7f7b0 | 640 | |
2e0fef85 JS |
641 | spin_lock_irq(shost->host_lock); |
642 | vport->fc_flag |= FC_FABRIC; | |
643 | spin_unlock_irq(shost->host_lock); | |
dea3101e JB |
644 | |
645 | phba->fc_edtov = be32_to_cpu(sp->cmn.e_d_tov); | |
646 | if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */ | |
647 | phba->fc_edtov = (phba->fc_edtov + 999999) / 1000000; | |
648 | ||
12265f68 | 649 | phba->fc_edtovResol = sp->cmn.edtovResolution; |
dea3101e JB |
650 | phba->fc_ratov = (be32_to_cpu(sp->cmn.w2.r_a_tov) + 999) / 1000; |
651 | ||
76a95d75 | 652 | if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { |
2e0fef85 JS |
653 | spin_lock_irq(shost->host_lock); |
654 | vport->fc_flag |= FC_PUBLIC_LOOP; | |
655 | spin_unlock_irq(shost->host_lock); | |
dea3101e JB |
656 | } |
657 | ||
2e0fef85 | 658 | vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID; |
dea3101e | 659 | memcpy(&ndlp->nlp_portname, &sp->portName, sizeof(struct lpfc_name)); |
92d7f7b0 | 660 | memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof(struct lpfc_name)); |
dea3101e JB |
661 | ndlp->nlp_class_sup = 0; |
662 | if (sp->cls1.classValid) | |
663 | ndlp->nlp_class_sup |= FC_COS_CLASS1; | |
664 | if (sp->cls2.classValid) | |
665 | ndlp->nlp_class_sup |= FC_COS_CLASS2; | |
666 | if (sp->cls3.classValid) | |
667 | ndlp->nlp_class_sup |= FC_COS_CLASS3; | |
668 | if (sp->cls4.classValid) | |
669 | ndlp->nlp_class_sup |= FC_COS_CLASS4; | |
670 | ndlp->nlp_maxframe = ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | | |
671 | sp->cmn.bbRcvSizeLsb; | |
92494144 JS |
672 | |
673 | fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp); | |
674 | memcpy(&vport->fabric_portname, &sp->portName, | |
675 | sizeof(struct lpfc_name)); | |
676 | memcpy(&vport->fabric_nodename, &sp->nodeName, | |
677 | sizeof(struct lpfc_name)); | |
dea3101e JB |
678 | memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); |
679 | ||
92d7f7b0 JS |
680 | if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { |
681 | if (sp->cmn.response_multiple_NPort) { | |
e8b62011 JS |
682 | lpfc_printf_vlog(vport, KERN_WARNING, |
683 | LOG_ELS | LOG_VPORT, | |
684 | "1816 FLOGI NPIV supported, " | |
685 | "response data 0x%x\n", | |
686 | sp->cmn.response_multiple_NPort); | |
1b51197d | 687 | spin_lock_irq(&phba->hbalock); |
92d7f7b0 | 688 | phba->link_flag |= LS_NPIV_FAB_SUPPORTED; |
1b51197d | 689 | spin_unlock_irq(&phba->hbalock); |
92d7f7b0 JS |
690 | } else { |
691 | /* Because we asked f/w for NPIV it still expects us | |
e8b62011 JS |
692 | to call reg_vnpid atleast for the physcial host */ |
693 | lpfc_printf_vlog(vport, KERN_WARNING, | |
694 | LOG_ELS | LOG_VPORT, | |
695 | "1817 Fabric does not support NPIV " | |
696 | "- configuring single port mode.\n"); | |
1b51197d | 697 | spin_lock_irq(&phba->hbalock); |
92d7f7b0 | 698 | phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED; |
1b51197d | 699 | spin_unlock_irq(&phba->hbalock); |
92d7f7b0 JS |
700 | } |
701 | } | |
dea3101e | 702 | |
92494144 | 703 | if (fabric_param_changed && |
92d7f7b0 | 704 | !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { |
dea3101e | 705 | |
92d7f7b0 JS |
706 | /* If our NportID changed, we need to ensure all |
707 | * remaining NPORTs get unreg_login'ed. | |
708 | */ | |
709 | list_for_each_entry_safe(np, next_np, | |
710 | &vport->fc_nodes, nlp_listp) { | |
d7c255b2 | 711 | if (!NLP_CHK_NODE_ACT(np)) |
e47c9093 | 712 | continue; |
92d7f7b0 JS |
713 | if ((np->nlp_state != NLP_STE_NPR_NODE) || |
714 | !(np->nlp_flag & NLP_NPR_ADISC)) | |
715 | continue; | |
716 | spin_lock_irq(shost->host_lock); | |
717 | np->nlp_flag &= ~NLP_NPR_ADISC; | |
718 | spin_unlock_irq(shost->host_lock); | |
719 | lpfc_unreg_rpi(vport, np); | |
720 | } | |
78730cfe | 721 | lpfc_cleanup_pending_mbox(vport); |
5af5eee7 | 722 | |
5248a749 | 723 | if (phba->sli_rev == LPFC_SLI_REV4) { |
5af5eee7 | 724 | lpfc_sli4_unreg_all_rpis(vport); |
92d7f7b0 | 725 | lpfc_mbx_unreg_vpi(vport); |
09372820 | 726 | spin_lock_irq(shost->host_lock); |
ecfd03c6 JS |
727 | vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; |
728 | spin_unlock_irq(shost->host_lock); | |
729 | } | |
27aa1b73 JS |
730 | |
731 | /* | |
732 | * For SLI3 and SLI4, the VPI needs to be reregistered in | |
733 | * response to this fabric parameter change event. | |
734 | */ | |
735 | spin_lock_irq(shost->host_lock); | |
736 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; | |
737 | spin_unlock_irq(shost->host_lock); | |
38b92ef8 JS |
738 | } else if ((phba->sli_rev == LPFC_SLI_REV4) && |
739 | !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { | |
740 | /* | |
741 | * Driver needs to re-reg VPI in order for f/w | |
742 | * to update the MAC address. | |
743 | */ | |
9589b062 | 744 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); |
38b92ef8 JS |
745 | lpfc_register_new_vport(phba, vport, ndlp); |
746 | return 0; | |
92d7f7b0 | 747 | } |
dea3101e | 748 | |
6fb120a7 JS |
749 | if (phba->sli_rev < LPFC_SLI_REV4) { |
750 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_REG_LOGIN_ISSUE); | |
751 | if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED && | |
752 | vport->fc_flag & FC_VPORT_NEEDS_REG_VPI) | |
753 | lpfc_register_new_vport(phba, vport, ndlp); | |
754 | else | |
755 | lpfc_issue_fabric_reglogin(vport); | |
756 | } else { | |
757 | ndlp->nlp_type |= NLP_FABRIC; | |
758 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); | |
695a814e JS |
759 | if ((!(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) && |
760 | (vport->vpi_state & LPFC_VPI_REGISTERED)) { | |
6fb120a7 JS |
761 | lpfc_start_fdiscs(phba); |
762 | lpfc_do_scr_ns_plogi(phba, vport); | |
695a814e | 763 | } else if (vport->fc_flag & FC_VFI_REGISTERED) |
ecfd03c6 | 764 | lpfc_issue_init_vpi(vport); |
1b51197d JS |
765 | else { |
766 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
767 | "3135 Need register VFI: (x%x/%x)\n", | |
768 | vport->fc_prevDID, vport->fc_myDID); | |
6fb120a7 | 769 | lpfc_issue_reg_vfi(vport); |
1b51197d | 770 | } |
92d7f7b0 | 771 | } |
dea3101e | 772 | return 0; |
dea3101e | 773 | } |
1b51197d | 774 | |
e59058c4 | 775 | /** |
3621a710 | 776 | * lpfc_cmpl_els_flogi_nport - Completion function for flogi to an N_Port |
e59058c4 JS |
777 | * @vport: pointer to a host virtual N_Port data structure. |
778 | * @ndlp: pointer to a node-list data structure. | |
779 | * @sp: pointer to service parameter data structure. | |
780 | * | |
781 | * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback | |
782 | * function to handle the completion of a Fabric Login (FLOGI) into an N_Port | |
783 | * in a point-to-point topology. First, the @vport's N_Port Name is compared | |
784 | * with the received N_Port Name: if the @vport's N_Port Name is greater than | |
785 | * the received N_Port Name lexicographically, this node shall assign local | |
786 | * N_Port ID (PT2PT_LocalID: 1) and remote N_Port ID (PT2PT_RemoteID: 2) and | |
787 | * will send out Port Login (PLOGI) with the N_Port IDs assigned. Otherwise, | |
788 | * this node shall just wait for the remote node to issue PLOGI and assign | |
789 | * N_Port IDs. | |
790 | * | |
791 | * Return code | |
792 | * 0 - Success | |
793 | * -ENXIO - Fail | |
794 | **/ | |
dea3101e | 795 | static int |
2e0fef85 JS |
796 | lpfc_cmpl_els_flogi_nport(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
797 | struct serv_parm *sp) | |
dea3101e | 798 | { |
2e0fef85 JS |
799 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
800 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
801 | LPFC_MBOXQ_t *mbox; |
802 | int rc; | |
803 | ||
2e0fef85 JS |
804 | spin_lock_irq(shost->host_lock); |
805 | vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
806 | spin_unlock_irq(shost->host_lock); | |
dea3101e JB |
807 | |
808 | phba->fc_edtov = FF_DEF_EDTOV; | |
809 | phba->fc_ratov = FF_DEF_RATOV; | |
2e0fef85 | 810 | rc = memcmp(&vport->fc_portname, &sp->portName, |
92d7f7b0 | 811 | sizeof(vport->fc_portname)); |
2eb6862a JS |
812 | memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); |
813 | ||
dea3101e JB |
814 | if (rc >= 0) { |
815 | /* This side will initiate the PLOGI */ | |
2e0fef85 JS |
816 | spin_lock_irq(shost->host_lock); |
817 | vport->fc_flag |= FC_PT2PT_PLOGI; | |
818 | spin_unlock_irq(shost->host_lock); | |
dea3101e JB |
819 | |
820 | /* | |
821 | * N_Port ID cannot be 0, set our to LocalID the other | |
822 | * side will be RemoteID. | |
823 | */ | |
824 | ||
825 | /* not equal */ | |
826 | if (rc) | |
2e0fef85 | 827 | vport->fc_myDID = PT2PT_LocalID; |
dea3101e JB |
828 | |
829 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
830 | if (!mbox) | |
831 | goto fail; | |
832 | ||
833 | lpfc_config_link(phba, mbox); | |
834 | ||
835 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
ed957684 | 836 | mbox->vport = vport; |
0b727fea | 837 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
dea3101e JB |
838 | if (rc == MBX_NOT_FINISHED) { |
839 | mempool_free(mbox, phba->mbox_mem_pool); | |
840 | goto fail; | |
841 | } | |
939723a4 JS |
842 | |
843 | /* | |
844 | * For SLI4, the VFI/VPI are registered AFTER the | |
845 | * Nport with the higher WWPN sends the PLOGI with | |
846 | * an assigned NPortId. | |
847 | */ | |
848 | ||
849 | /* not equal */ | |
850 | if ((phba->sli_rev == LPFC_SLI_REV4) && rc) | |
851 | lpfc_issue_reg_vfi(vport); | |
852 | ||
e47c9093 JS |
853 | /* Decrement ndlp reference count indicating that ndlp can be |
854 | * safely released when other references to it are done. | |
855 | */ | |
329f9bc7 | 856 | lpfc_nlp_put(ndlp); |
dea3101e | 857 | |
2e0fef85 | 858 | ndlp = lpfc_findnode_did(vport, PT2PT_RemoteID); |
dea3101e JB |
859 | if (!ndlp) { |
860 | /* | |
861 | * Cannot find existing Fabric ndlp, so allocate a | |
862 | * new one | |
863 | */ | |
864 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
865 | if (!ndlp) | |
866 | goto fail; | |
2e0fef85 | 867 | lpfc_nlp_init(vport, ndlp, PT2PT_RemoteID); |
e47c9093 JS |
868 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { |
869 | ndlp = lpfc_enable_node(vport, ndlp, | |
870 | NLP_STE_UNUSED_NODE); | |
871 | if(!ndlp) | |
872 | goto fail; | |
dea3101e JB |
873 | } |
874 | ||
875 | memcpy(&ndlp->nlp_portname, &sp->portName, | |
2e0fef85 | 876 | sizeof(struct lpfc_name)); |
dea3101e | 877 | memcpy(&ndlp->nlp_nodename, &sp->nodeName, |
2e0fef85 | 878 | sizeof(struct lpfc_name)); |
e47c9093 | 879 | /* Set state will put ndlp onto node list if not already done */ |
2e0fef85 JS |
880 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
881 | spin_lock_irq(shost->host_lock); | |
dea3101e | 882 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 | 883 | spin_unlock_irq(shost->host_lock); |
e47c9093 JS |
884 | } else |
885 | /* This side will wait for the PLOGI, decrement ndlp reference | |
886 | * count indicating that ndlp can be released when other | |
887 | * references to it are done. | |
888 | */ | |
329f9bc7 | 889 | lpfc_nlp_put(ndlp); |
dea3101e | 890 | |
09372820 JS |
891 | /* If we are pt2pt with another NPort, force NPIV off! */ |
892 | phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED; | |
893 | ||
2e0fef85 JS |
894 | spin_lock_irq(shost->host_lock); |
895 | vport->fc_flag |= FC_PT2PT; | |
896 | spin_unlock_irq(shost->host_lock); | |
dea3101e JB |
897 | |
898 | /* Start discovery - this should just do CLEAR_LA */ | |
2e0fef85 | 899 | lpfc_disc_start(vport); |
dea3101e | 900 | return 0; |
92d7f7b0 | 901 | fail: |
dea3101e JB |
902 | return -ENXIO; |
903 | } | |
904 | ||
e59058c4 | 905 | /** |
3621a710 | 906 | * lpfc_cmpl_els_flogi - Completion callback function for flogi |
e59058c4 JS |
907 | * @phba: pointer to lpfc hba data structure. |
908 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
909 | * @rspiocb: pointer to lpfc response iocb data structure. | |
910 | * | |
911 | * This routine is the top-level completion callback function for issuing | |
912 | * a Fabric Login (FLOGI) command. If the response IOCB reported error, | |
913 | * the lpfc_els_retry() routine shall be invoked to retry the FLOGI. If | |
914 | * retry has been made (either immediately or delayed with lpfc_els_retry() | |
915 | * returning 1), the command IOCB will be released and function returned. | |
916 | * If the retry attempt has been given up (possibly reach the maximum | |
917 | * number of retries), one additional decrement of ndlp reference shall be | |
918 | * invoked before going out after releasing the command IOCB. This will | |
919 | * actually release the remote node (Note, lpfc_els_free_iocb() will also | |
920 | * invoke one decrement of ndlp reference count). If no error reported in | |
921 | * the IOCB status, the command Port ID field is used to determine whether | |
922 | * this is a point-to-point topology or a fabric topology: if the Port ID | |
923 | * field is assigned, it is a fabric topology; otherwise, it is a | |
924 | * point-to-point topology. The routine lpfc_cmpl_els_flogi_fabric() or | |
925 | * lpfc_cmpl_els_flogi_nport() shall be invoked accordingly to handle the | |
926 | * specific topology completion conditions. | |
927 | **/ | |
dea3101e | 928 | static void |
329f9bc7 JS |
929 | lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
930 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 931 | { |
2e0fef85 JS |
932 | struct lpfc_vport *vport = cmdiocb->vport; |
933 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e JB |
934 | IOCB_t *irsp = &rspiocb->iocb; |
935 | struct lpfc_nodelist *ndlp = cmdiocb->context1; | |
936 | struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp; | |
937 | struct serv_parm *sp; | |
0c9ab6f5 | 938 | uint16_t fcf_index; |
dea3101e JB |
939 | int rc; |
940 | ||
941 | /* Check to see if link went down during discovery */ | |
2e0fef85 | 942 | if (lpfc_els_chk_latt(vport)) { |
fa4066b6 JS |
943 | /* One additional decrement on node reference count to |
944 | * trigger the release of the node | |
945 | */ | |
329f9bc7 | 946 | lpfc_nlp_put(ndlp); |
dea3101e JB |
947 | goto out; |
948 | } | |
949 | ||
858c9f6c JS |
950 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
951 | "FLOGI cmpl: status:x%x/x%x state:x%x", | |
952 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
953 | vport->port_state); | |
954 | ||
dea3101e | 955 | if (irsp->ulpStatus) { |
0c9ab6f5 | 956 | /* |
a93ff37a | 957 | * In case of FIP mode, perform roundrobin FCF failover |
0c9ab6f5 JS |
958 | * due to new FCF discovery |
959 | */ | |
960 | if ((phba->hba_flag & HBA_FIP_SUPPORT) && | |
80c17849 JS |
961 | (phba->fcf.fcf_flag & FCF_DISCOVERY)) { |
962 | if (phba->link_state < LPFC_LINK_UP) | |
963 | goto stop_rr_fcf_flogi; | |
964 | if ((phba->fcoe_cvl_eventtag_attn == | |
965 | phba->fcoe_cvl_eventtag) && | |
966 | (irsp->ulpStatus == IOSTAT_LOCAL_REJECT) && | |
e3d2b802 JS |
967 | ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) == |
968 | IOERR_SLI_ABORTED)) | |
80c17849 JS |
969 | goto stop_rr_fcf_flogi; |
970 | else | |
971 | phba->fcoe_cvl_eventtag_attn = | |
972 | phba->fcoe_cvl_eventtag; | |
0c9ab6f5 | 973 | lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS, |
a93ff37a JS |
974 | "2611 FLOGI failed on FCF (x%x), " |
975 | "status:x%x/x%x, tmo:x%x, perform " | |
976 | "roundrobin FCF failover\n", | |
38b92ef8 JS |
977 | phba->fcf.current_rec.fcf_indx, |
978 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
979 | irsp->ulpTimeout); | |
7d791df7 JS |
980 | lpfc_sli4_set_fcf_flogi_fail(phba, |
981 | phba->fcf.current_rec.fcf_indx); | |
0c9ab6f5 | 982 | fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba); |
a93ff37a JS |
983 | rc = lpfc_sli4_fcf_rr_next_proc(vport, fcf_index); |
984 | if (rc) | |
985 | goto out; | |
0c9ab6f5 JS |
986 | } |
987 | ||
80c17849 | 988 | stop_rr_fcf_flogi: |
38b92ef8 JS |
989 | /* FLOGI failure */ |
990 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
991 | "2858 FLOGI failure Status:x%x/x%x TMO:x%x\n", | |
992 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
993 | irsp->ulpTimeout); | |
994 | ||
dea3101e | 995 | /* Check for retry */ |
2e0fef85 | 996 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) |
dea3101e | 997 | goto out; |
2e0fef85 | 998 | |
76a95d75 JS |
999 | /* FLOGI failure */ |
1000 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
1001 | "0100 FLOGI failure Status:x%x/x%x TMO:x%x\n", | |
1002 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1003 | irsp->ulpTimeout); | |
1004 | ||
dea3101e | 1005 | /* FLOGI failed, so there is no fabric */ |
2e0fef85 JS |
1006 | spin_lock_irq(shost->host_lock); |
1007 | vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
1008 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 1009 | |
329f9bc7 | 1010 | /* If private loop, then allow max outstanding els to be |
dea3101e JB |
1011 | * LPFC_MAX_DISC_THREADS (32). Scanning in the case of no |
1012 | * alpa map would take too long otherwise. | |
1013 | */ | |
1b51197d | 1014 | if (phba->alpa_map[0] == 0) |
3de2a653 | 1015 | vport->cfg_discovery_threads = LPFC_MAX_DISC_THREADS; |
ff78d8f9 JS |
1016 | if ((phba->sli_rev == LPFC_SLI_REV4) && |
1017 | (!(vport->fc_flag & FC_VFI_REGISTERED) || | |
1018 | (vport->fc_prevDID != vport->fc_myDID))) { | |
1019 | if (vport->fc_flag & FC_VFI_REGISTERED) | |
1020 | lpfc_sli4_unreg_all_rpis(vport); | |
1021 | lpfc_issue_reg_vfi(vport); | |
1022 | lpfc_nlp_put(ndlp); | |
1023 | goto out; | |
dea3101e | 1024 | } |
dea3101e JB |
1025 | goto flogifail; |
1026 | } | |
695a814e JS |
1027 | spin_lock_irq(shost->host_lock); |
1028 | vport->fc_flag &= ~FC_VPORT_CVL_RCVD; | |
4b40c59e | 1029 | vport->fc_flag &= ~FC_VPORT_LOGO_RCVD; |
695a814e | 1030 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
1031 | |
1032 | /* | |
1033 | * The FLogI succeeded. Sync the data for the CPU before | |
1034 | * accessing it. | |
1035 | */ | |
1036 | prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); | |
1037 | ||
1038 | sp = prsp->virt + sizeof(uint32_t); | |
1039 | ||
1040 | /* FLOGI completes successfully */ | |
e8b62011 | 1041 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
af901ca1 | 1042 | "0101 FLOGI completes successfully " |
e8b62011 JS |
1043 | "Data: x%x x%x x%x x%x\n", |
1044 | irsp->un.ulpWord[4], sp->cmn.e_d_tov, | |
1045 | sp->cmn.w2.r_a_tov, sp->cmn.edtovResolution); | |
dea3101e | 1046 | |
2e0fef85 | 1047 | if (vport->port_state == LPFC_FLOGI) { |
dea3101e JB |
1048 | /* |
1049 | * If Common Service Parameters indicate Nport | |
1050 | * we are point to point, if Fport we are Fabric. | |
1051 | */ | |
1052 | if (sp->cmn.fPort) | |
2e0fef85 | 1053 | rc = lpfc_cmpl_els_flogi_fabric(vport, ndlp, sp, irsp); |
76a95d75 | 1054 | else if (!(phba->hba_flag & HBA_FCOE_MODE)) |
2e0fef85 | 1055 | rc = lpfc_cmpl_els_flogi_nport(vport, ndlp, sp); |
dbb6b3ab JS |
1056 | else { |
1057 | lpfc_printf_vlog(vport, KERN_ERR, | |
1058 | LOG_FIP | LOG_ELS, | |
1059 | "2831 FLOGI response with cleared Fabric " | |
1060 | "bit fcf_index 0x%x " | |
1061 | "Switch Name %02x%02x%02x%02x%02x%02x%02x%02x " | |
1062 | "Fabric Name " | |
1063 | "%02x%02x%02x%02x%02x%02x%02x%02x\n", | |
1064 | phba->fcf.current_rec.fcf_indx, | |
1065 | phba->fcf.current_rec.switch_name[0], | |
1066 | phba->fcf.current_rec.switch_name[1], | |
1067 | phba->fcf.current_rec.switch_name[2], | |
1068 | phba->fcf.current_rec.switch_name[3], | |
1069 | phba->fcf.current_rec.switch_name[4], | |
1070 | phba->fcf.current_rec.switch_name[5], | |
1071 | phba->fcf.current_rec.switch_name[6], | |
1072 | phba->fcf.current_rec.switch_name[7], | |
1073 | phba->fcf.current_rec.fabric_name[0], | |
1074 | phba->fcf.current_rec.fabric_name[1], | |
1075 | phba->fcf.current_rec.fabric_name[2], | |
1076 | phba->fcf.current_rec.fabric_name[3], | |
1077 | phba->fcf.current_rec.fabric_name[4], | |
1078 | phba->fcf.current_rec.fabric_name[5], | |
1079 | phba->fcf.current_rec.fabric_name[6], | |
1080 | phba->fcf.current_rec.fabric_name[7]); | |
1081 | lpfc_nlp_put(ndlp); | |
1082 | spin_lock_irq(&phba->hbalock); | |
1083 | phba->fcf.fcf_flag &= ~FCF_DISCOVERY; | |
a93ff37a | 1084 | phba->hba_flag &= ~(FCF_RR_INPROG | HBA_DEVLOSS_TMO); |
dbb6b3ab JS |
1085 | spin_unlock_irq(&phba->hbalock); |
1086 | goto out; | |
1087 | } | |
0c9ab6f5 JS |
1088 | if (!rc) { |
1089 | /* Mark the FCF discovery process done */ | |
999d813f JS |
1090 | if (phba->hba_flag & HBA_FIP_SUPPORT) |
1091 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FIP | | |
1092 | LOG_ELS, | |
a93ff37a JS |
1093 | "2769 FLOGI to FCF (x%x) " |
1094 | "completed successfully\n", | |
999d813f | 1095 | phba->fcf.current_rec.fcf_indx); |
0c9ab6f5 JS |
1096 | spin_lock_irq(&phba->hbalock); |
1097 | phba->fcf.fcf_flag &= ~FCF_DISCOVERY; | |
a93ff37a | 1098 | phba->hba_flag &= ~(FCF_RR_INPROG | HBA_DEVLOSS_TMO); |
0c9ab6f5 | 1099 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 1100 | goto out; |
0c9ab6f5 | 1101 | } |
dea3101e JB |
1102 | } |
1103 | ||
1104 | flogifail: | |
329f9bc7 | 1105 | lpfc_nlp_put(ndlp); |
dea3101e | 1106 | |
858c9f6c | 1107 | if (!lpfc_error_lost_link(irsp)) { |
dea3101e | 1108 | /* FLOGI failed, so just use loop map to make discovery list */ |
2e0fef85 | 1109 | lpfc_disc_list_loopmap(vport); |
dea3101e JB |
1110 | |
1111 | /* Start discovery */ | |
2e0fef85 | 1112 | lpfc_disc_start(vport); |
87af33fe | 1113 | } else if (((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) || |
e3d2b802 JS |
1114 | (((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) != |
1115 | IOERR_SLI_ABORTED) && | |
1116 | ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) != | |
1117 | IOERR_SLI_DOWN))) && | |
87af33fe JS |
1118 | (phba->link_state != LPFC_CLEAR_LA)) { |
1119 | /* If FLOGI failed enable link interrupt. */ | |
1120 | lpfc_issue_clear_la(phba, vport); | |
dea3101e | 1121 | } |
dea3101e JB |
1122 | out: |
1123 | lpfc_els_free_iocb(phba, cmdiocb); | |
1124 | } | |
1125 | ||
e59058c4 | 1126 | /** |
3621a710 | 1127 | * lpfc_issue_els_flogi - Issue an flogi iocb command for a vport |
e59058c4 JS |
1128 | * @vport: pointer to a host virtual N_Port data structure. |
1129 | * @ndlp: pointer to a node-list data structure. | |
1130 | * @retry: number of retries to the command IOCB. | |
1131 | * | |
1132 | * This routine issues a Fabric Login (FLOGI) Request ELS command | |
1133 | * for a @vport. The initiator service parameters are put into the payload | |
1134 | * of the FLOGI Request IOCB and the top-level callback function pointer | |
1135 | * to lpfc_cmpl_els_flogi() routine is put to the IOCB completion callback | |
1136 | * function field. The lpfc_issue_fabric_iocb routine is invoked to send | |
1137 | * out FLOGI ELS command with one outstanding fabric IOCB at a time. | |
1138 | * | |
1139 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
1140 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
1141 | * will be stored into the context1 field of the IOCB for the completion | |
1142 | * callback function to the FLOGI ELS command. | |
1143 | * | |
1144 | * Return code | |
1145 | * 0 - successfully issued flogi iocb for @vport | |
1146 | * 1 - failed to issue flogi iocb for @vport | |
1147 | **/ | |
dea3101e | 1148 | static int |
2e0fef85 | 1149 | lpfc_issue_els_flogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
dea3101e JB |
1150 | uint8_t retry) |
1151 | { | |
2e0fef85 | 1152 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
1153 | struct serv_parm *sp; |
1154 | IOCB_t *icmd; | |
1155 | struct lpfc_iocbq *elsiocb; | |
1156 | struct lpfc_sli_ring *pring; | |
1157 | uint8_t *pcmd; | |
1158 | uint16_t cmdsize; | |
1159 | uint32_t tmo; | |
1160 | int rc; | |
1161 | ||
1162 | pring = &phba->sli.ring[LPFC_ELS_RING]; | |
1163 | ||
92d7f7b0 | 1164 | cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); |
2e0fef85 JS |
1165 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
1166 | ndlp->nlp_DID, ELS_CMD_FLOGI); | |
92d7f7b0 | 1167 | |
488d1469 | 1168 | if (!elsiocb) |
c9f8735b | 1169 | return 1; |
dea3101e JB |
1170 | |
1171 | icmd = &elsiocb->iocb; | |
1172 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
1173 | ||
1174 | /* For FLOGI request, remainder of payload is service parameters */ | |
1175 | *((uint32_t *) (pcmd)) = ELS_CMD_FLOGI; | |
92d7f7b0 JS |
1176 | pcmd += sizeof(uint32_t); |
1177 | memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); | |
dea3101e JB |
1178 | sp = (struct serv_parm *) pcmd; |
1179 | ||
1180 | /* Setup CSPs accordingly for Fabric */ | |
1181 | sp->cmn.e_d_tov = 0; | |
1182 | sp->cmn.w2.r_a_tov = 0; | |
df9e1b59 | 1183 | sp->cmn.virtual_fabric_support = 0; |
dea3101e | 1184 | sp->cls1.classValid = 0; |
dea3101e JB |
1185 | if (sp->cmn.fcphLow < FC_PH3) |
1186 | sp->cmn.fcphLow = FC_PH3; | |
1187 | if (sp->cmn.fcphHigh < FC_PH3) | |
1188 | sp->cmn.fcphHigh = FC_PH3; | |
1189 | ||
c31098ce JS |
1190 | if (phba->sli_rev == LPFC_SLI_REV4) { |
1191 | if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == | |
1192 | LPFC_SLI_INTF_IF_TYPE_0) { | |
1193 | elsiocb->iocb.ulpCt_h = ((SLI4_CT_FCFI >> 1) & 1); | |
1194 | elsiocb->iocb.ulpCt_l = (SLI4_CT_FCFI & 1); | |
1195 | /* FLOGI needs to be 3 for WQE FCFI */ | |
1196 | /* Set the fcfi to the fcfi we registered with */ | |
1197 | elsiocb->iocb.ulpContext = phba->fcf.fcfi; | |
1198 | } | |
0f37887e JS |
1199 | /* Can't do SLI4 class2 without support sequence coalescing */ |
1200 | sp->cls2.classValid = 0; | |
1201 | sp->cls2.seqDelivery = 0; | |
5248a749 | 1202 | } else { |
0f37887e JS |
1203 | /* Historical, setting sequential-delivery bit for SLI3 */ |
1204 | sp->cls2.seqDelivery = (sp->cls2.classValid) ? 1 : 0; | |
1205 | sp->cls3.seqDelivery = (sp->cls3.classValid) ? 1 : 0; | |
5248a749 JS |
1206 | if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { |
1207 | sp->cmn.request_multiple_Nport = 1; | |
1208 | /* For FLOGI, Let FLOGI rsp set the NPortID for VPI 0 */ | |
1209 | icmd->ulpCt_h = 1; | |
1210 | icmd->ulpCt_l = 0; | |
1211 | } else | |
1212 | sp->cmn.request_multiple_Nport = 0; | |
92d7f7b0 JS |
1213 | } |
1214 | ||
76a95d75 | 1215 | if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) { |
858c9f6c JS |
1216 | icmd->un.elsreq64.myID = 0; |
1217 | icmd->un.elsreq64.fl = 1; | |
1218 | } | |
1219 | ||
dea3101e JB |
1220 | tmo = phba->fc_ratov; |
1221 | phba->fc_ratov = LPFC_DISC_FLOGI_TMO; | |
2e0fef85 | 1222 | lpfc_set_disctmo(vport); |
dea3101e JB |
1223 | phba->fc_ratov = tmo; |
1224 | ||
1225 | phba->fc_stat.elsXmitFLOGI++; | |
1226 | elsiocb->iocb_cmpl = lpfc_cmpl_els_flogi; | |
858c9f6c JS |
1227 | |
1228 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, | |
1229 | "Issue FLOGI: opt:x%x", | |
1230 | phba->sli3_options, 0, 0); | |
1231 | ||
92d7f7b0 | 1232 | rc = lpfc_issue_fabric_iocb(phba, elsiocb); |
dea3101e JB |
1233 | if (rc == IOCB_ERROR) { |
1234 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 1235 | return 1; |
dea3101e | 1236 | } |
c9f8735b | 1237 | return 0; |
dea3101e JB |
1238 | } |
1239 | ||
e59058c4 | 1240 | /** |
3621a710 | 1241 | * lpfc_els_abort_flogi - Abort all outstanding flogi iocbs |
e59058c4 JS |
1242 | * @phba: pointer to lpfc hba data structure. |
1243 | * | |
1244 | * This routine aborts all the outstanding Fabric Login (FLOGI) IOCBs | |
1245 | * with a @phba. This routine walks all the outstanding IOCBs on the txcmplq | |
1246 | * list and issues an abort IOCB commond on each outstanding IOCB that | |
1247 | * contains a active Fabric_DID ndlp. Note that this function is to issue | |
1248 | * the abort IOCB command on all the outstanding IOCBs, thus when this | |
1249 | * function returns, it does not guarantee all the IOCBs are actually aborted. | |
1250 | * | |
1251 | * Return code | |
3ad2f3fb | 1252 | * 0 - Successfully issued abort iocb on all outstanding flogis (Always 0) |
e59058c4 | 1253 | **/ |
dea3101e | 1254 | int |
2e0fef85 | 1255 | lpfc_els_abort_flogi(struct lpfc_hba *phba) |
dea3101e JB |
1256 | { |
1257 | struct lpfc_sli_ring *pring; | |
1258 | struct lpfc_iocbq *iocb, *next_iocb; | |
1259 | struct lpfc_nodelist *ndlp; | |
1260 | IOCB_t *icmd; | |
1261 | ||
1262 | /* Abort outstanding I/O on NPort <nlp_DID> */ | |
1263 | lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, | |
e8b62011 JS |
1264 | "0201 Abort outstanding I/O on NPort x%x\n", |
1265 | Fabric_DID); | |
dea3101e JB |
1266 | |
1267 | pring = &phba->sli.ring[LPFC_ELS_RING]; | |
1268 | ||
1269 | /* | |
1270 | * Check the txcmplq for an iocb that matches the nport the driver is | |
1271 | * searching for. | |
1272 | */ | |
2e0fef85 | 1273 | spin_lock_irq(&phba->hbalock); |
dea3101e JB |
1274 | list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { |
1275 | icmd = &iocb->iocb; | |
1b51197d | 1276 | if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR) { |
dea3101e | 1277 | ndlp = (struct lpfc_nodelist *)(iocb->context1); |
58da1ffb JS |
1278 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && |
1279 | (ndlp->nlp_DID == Fabric_DID)) | |
07951076 | 1280 | lpfc_sli_issue_abort_iotag(phba, pring, iocb); |
dea3101e JB |
1281 | } |
1282 | } | |
2e0fef85 | 1283 | spin_unlock_irq(&phba->hbalock); |
dea3101e JB |
1284 | |
1285 | return 0; | |
1286 | } | |
1287 | ||
e59058c4 | 1288 | /** |
3621a710 | 1289 | * lpfc_initial_flogi - Issue an initial fabric login for a vport |
e59058c4 JS |
1290 | * @vport: pointer to a host virtual N_Port data structure. |
1291 | * | |
1292 | * This routine issues an initial Fabric Login (FLOGI) for the @vport | |
1293 | * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from | |
1294 | * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and | |
1295 | * put it into the @vport's ndlp list. If an inactive ndlp found on the list, | |
1296 | * it will just be enabled and made active. The lpfc_issue_els_flogi() routine | |
1297 | * is then invoked with the @vport and the ndlp to perform the FLOGI for the | |
1298 | * @vport. | |
1299 | * | |
1300 | * Return code | |
1301 | * 0 - failed to issue initial flogi for @vport | |
1302 | * 1 - successfully issued initial flogi for @vport | |
1303 | **/ | |
dea3101e | 1304 | int |
2e0fef85 | 1305 | lpfc_initial_flogi(struct lpfc_vport *vport) |
dea3101e | 1306 | { |
2e0fef85 | 1307 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
1308 | struct lpfc_nodelist *ndlp; |
1309 | ||
98c9ea5c JS |
1310 | vport->port_state = LPFC_FLOGI; |
1311 | lpfc_set_disctmo(vport); | |
1312 | ||
c9f8735b | 1313 | /* First look for the Fabric ndlp */ |
2e0fef85 | 1314 | ndlp = lpfc_findnode_did(vport, Fabric_DID); |
c9f8735b | 1315 | if (!ndlp) { |
dea3101e | 1316 | /* Cannot find existing Fabric ndlp, so allocate a new one */ |
c9f8735b JW |
1317 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); |
1318 | if (!ndlp) | |
1319 | return 0; | |
2e0fef85 | 1320 | lpfc_nlp_init(vport, ndlp, Fabric_DID); |
6fb120a7 JS |
1321 | /* Set the node type */ |
1322 | ndlp->nlp_type |= NLP_FABRIC; | |
e47c9093 JS |
1323 | /* Put ndlp onto node list */ |
1324 | lpfc_enqueue_node(vport, ndlp); | |
1325 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
1326 | /* re-setup ndlp without removing from node list */ | |
1327 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
1328 | if (!ndlp) | |
1329 | return 0; | |
dea3101e | 1330 | } |
87af33fe | 1331 | |
5ac6b303 | 1332 | if (lpfc_issue_els_flogi(vport, ndlp, 0)) { |
fa4066b6 JS |
1333 | /* This decrement of reference count to node shall kick off |
1334 | * the release of the node. | |
1335 | */ | |
329f9bc7 | 1336 | lpfc_nlp_put(ndlp); |
5ac6b303 JS |
1337 | return 0; |
1338 | } | |
c9f8735b | 1339 | return 1; |
dea3101e JB |
1340 | } |
1341 | ||
e59058c4 | 1342 | /** |
3621a710 | 1343 | * lpfc_initial_fdisc - Issue an initial fabric discovery for a vport |
e59058c4 JS |
1344 | * @vport: pointer to a host virtual N_Port data structure. |
1345 | * | |
1346 | * This routine issues an initial Fabric Discover (FDISC) for the @vport | |
1347 | * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from | |
1348 | * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and | |
1349 | * put it into the @vport's ndlp list. If an inactive ndlp found on the list, | |
1350 | * it will just be enabled and made active. The lpfc_issue_els_fdisc() routine | |
1351 | * is then invoked with the @vport and the ndlp to perform the FDISC for the | |
1352 | * @vport. | |
1353 | * | |
1354 | * Return code | |
1355 | * 0 - failed to issue initial fdisc for @vport | |
1356 | * 1 - successfully issued initial fdisc for @vport | |
1357 | **/ | |
92d7f7b0 JS |
1358 | int |
1359 | lpfc_initial_fdisc(struct lpfc_vport *vport) | |
1360 | { | |
1361 | struct lpfc_hba *phba = vport->phba; | |
1362 | struct lpfc_nodelist *ndlp; | |
1363 | ||
1364 | /* First look for the Fabric ndlp */ | |
1365 | ndlp = lpfc_findnode_did(vport, Fabric_DID); | |
1366 | if (!ndlp) { | |
1367 | /* Cannot find existing Fabric ndlp, so allocate a new one */ | |
1368 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
1369 | if (!ndlp) | |
1370 | return 0; | |
1371 | lpfc_nlp_init(vport, ndlp, Fabric_DID); | |
e47c9093 JS |
1372 | /* Put ndlp onto node list */ |
1373 | lpfc_enqueue_node(vport, ndlp); | |
1374 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
1375 | /* re-setup ndlp without removing from node list */ | |
1376 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
1377 | if (!ndlp) | |
1378 | return 0; | |
92d7f7b0 | 1379 | } |
e47c9093 | 1380 | |
92d7f7b0 | 1381 | if (lpfc_issue_els_fdisc(vport, ndlp, 0)) { |
fa4066b6 JS |
1382 | /* decrement node reference count to trigger the release of |
1383 | * the node. | |
1384 | */ | |
92d7f7b0 | 1385 | lpfc_nlp_put(ndlp); |
fa4066b6 | 1386 | return 0; |
92d7f7b0 JS |
1387 | } |
1388 | return 1; | |
1389 | } | |
87af33fe | 1390 | |
e59058c4 | 1391 | /** |
3621a710 | 1392 | * lpfc_more_plogi - Check and issue remaining plogis for a vport |
e59058c4 JS |
1393 | * @vport: pointer to a host virtual N_Port data structure. |
1394 | * | |
1395 | * This routine checks whether there are more remaining Port Logins | |
1396 | * (PLOGI) to be issued for the @vport. If so, it will invoke the routine | |
1397 | * lpfc_els_disc_plogi() to go through the Node Port Recovery (NPR) nodes | |
1398 | * to issue ELS PLOGIs up to the configured discover threads with the | |
1399 | * @vport (@vport->cfg_discovery_threads). The function also decrement | |
1400 | * the @vport's num_disc_node by 1 if it is not already 0. | |
1401 | **/ | |
87af33fe | 1402 | void |
2e0fef85 | 1403 | lpfc_more_plogi(struct lpfc_vport *vport) |
dea3101e JB |
1404 | { |
1405 | int sentplogi; | |
1406 | ||
2e0fef85 JS |
1407 | if (vport->num_disc_nodes) |
1408 | vport->num_disc_nodes--; | |
dea3101e JB |
1409 | |
1410 | /* Continue discovery with <num_disc_nodes> PLOGIs to go */ | |
e8b62011 JS |
1411 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
1412 | "0232 Continue discovery with %d PLOGIs to go " | |
1413 | "Data: x%x x%x x%x\n", | |
1414 | vport->num_disc_nodes, vport->fc_plogi_cnt, | |
1415 | vport->fc_flag, vport->port_state); | |
dea3101e | 1416 | /* Check to see if there are more PLOGIs to be sent */ |
2e0fef85 JS |
1417 | if (vport->fc_flag & FC_NLP_MORE) |
1418 | /* go thru NPR nodes and issue any remaining ELS PLOGIs */ | |
1419 | sentplogi = lpfc_els_disc_plogi(vport); | |
1420 | ||
dea3101e JB |
1421 | return; |
1422 | } | |
1423 | ||
e59058c4 | 1424 | /** |
3621a710 | 1425 | * lpfc_plogi_confirm_nport - Confirm pologi wwpn matches stored ndlp |
e59058c4 JS |
1426 | * @phba: pointer to lpfc hba data structure. |
1427 | * @prsp: pointer to response IOCB payload. | |
1428 | * @ndlp: pointer to a node-list data structure. | |
1429 | * | |
1430 | * This routine checks and indicates whether the WWPN of an N_Port, retrieved | |
1431 | * from a PLOGI, matches the WWPN that is stored in the @ndlp for that N_POrt. | |
1432 | * The following cases are considered N_Port confirmed: | |
1433 | * 1) The N_Port is a Fabric ndlp; 2) The @ndlp is on vport list and matches | |
1434 | * the WWPN of the N_Port logged into; 3) The @ndlp is not on vport list but | |
1435 | * it does not have WWPN assigned either. If the WWPN is confirmed, the | |
1436 | * pointer to the @ndlp will be returned. If the WWPN is not confirmed: | |
1437 | * 1) if there is a node on vport list other than the @ndlp with the same | |
1438 | * WWPN of the N_Port PLOGI logged into, the lpfc_unreg_rpi() will be invoked | |
1439 | * on that node to release the RPI associated with the node; 2) if there is | |
1440 | * no node found on vport list with the same WWPN of the N_Port PLOGI logged | |
1441 | * into, a new node shall be allocated (or activated). In either case, the | |
1442 | * parameters of the @ndlp shall be copied to the new_ndlp, the @ndlp shall | |
1443 | * be released and the new_ndlp shall be put on to the vport node list and | |
1444 | * its pointer returned as the confirmed node. | |
1445 | * | |
1446 | * Note that before the @ndlp got "released", the keepDID from not-matching | |
1447 | * or inactive "new_ndlp" on the vport node list is assigned to the nlp_DID | |
1448 | * of the @ndlp. This is because the release of @ndlp is actually to put it | |
1449 | * into an inactive state on the vport node list and the vport node list | |
1450 | * management algorithm does not allow two node with a same DID. | |
1451 | * | |
1452 | * Return code | |
1453 | * pointer to the PLOGI N_Port @ndlp | |
1454 | **/ | |
488d1469 | 1455 | static struct lpfc_nodelist * |
92d7f7b0 | 1456 | lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp, |
488d1469 JS |
1457 | struct lpfc_nodelist *ndlp) |
1458 | { | |
2e0fef85 | 1459 | struct lpfc_vport *vport = ndlp->vport; |
488d1469 | 1460 | struct lpfc_nodelist *new_ndlp; |
0ff10d46 JS |
1461 | struct lpfc_rport_data *rdata; |
1462 | struct fc_rport *rport; | |
488d1469 | 1463 | struct serv_parm *sp; |
92d7f7b0 | 1464 | uint8_t name[sizeof(struct lpfc_name)]; |
58da1ffb | 1465 | uint32_t rc, keepDID = 0; |
38b92ef8 JS |
1466 | int put_node; |
1467 | int put_rport; | |
19ca7609 | 1468 | struct lpfc_node_rrqs rrq; |
488d1469 | 1469 | |
2fb9bd8b JS |
1470 | /* Fabric nodes can have the same WWPN so we don't bother searching |
1471 | * by WWPN. Just return the ndlp that was given to us. | |
1472 | */ | |
1473 | if (ndlp->nlp_type & NLP_FABRIC) | |
1474 | return ndlp; | |
1475 | ||
92d7f7b0 | 1476 | sp = (struct serv_parm *) ((uint8_t *) prsp + sizeof(uint32_t)); |
685f0bf7 | 1477 | memset(name, 0, sizeof(struct lpfc_name)); |
488d1469 | 1478 | |
685f0bf7 | 1479 | /* Now we find out if the NPort we are logging into, matches the WWPN |
488d1469 JS |
1480 | * we have for that ndlp. If not, we have some work to do. |
1481 | */ | |
2e0fef85 | 1482 | new_ndlp = lpfc_findnode_wwpn(vport, &sp->portName); |
488d1469 | 1483 | |
e47c9093 | 1484 | if (new_ndlp == ndlp && NLP_CHK_NODE_ACT(new_ndlp)) |
488d1469 | 1485 | return ndlp; |
19ca7609 | 1486 | memset(&rrq.xri_bitmap, 0, sizeof(new_ndlp->active_rrqs.xri_bitmap)); |
488d1469 | 1487 | |
34f5ad8b JS |
1488 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
1489 | "3178 PLOGI confirm: ndlp %p x%x: new_ndlp %p\n", | |
1490 | ndlp, ndlp->nlp_DID, new_ndlp); | |
1491 | ||
488d1469 | 1492 | if (!new_ndlp) { |
2e0fef85 JS |
1493 | rc = memcmp(&ndlp->nlp_portname, name, |
1494 | sizeof(struct lpfc_name)); | |
92795650 JS |
1495 | if (!rc) |
1496 | return ndlp; | |
488d1469 JS |
1497 | new_ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_ATOMIC); |
1498 | if (!new_ndlp) | |
1499 | return ndlp; | |
2e0fef85 | 1500 | lpfc_nlp_init(vport, new_ndlp, ndlp->nlp_DID); |
e47c9093 | 1501 | } else if (!NLP_CHK_NODE_ACT(new_ndlp)) { |
58da1ffb JS |
1502 | rc = memcmp(&ndlp->nlp_portname, name, |
1503 | sizeof(struct lpfc_name)); | |
1504 | if (!rc) | |
1505 | return ndlp; | |
e47c9093 JS |
1506 | new_ndlp = lpfc_enable_node(vport, new_ndlp, |
1507 | NLP_STE_UNUSED_NODE); | |
1508 | if (!new_ndlp) | |
1509 | return ndlp; | |
58da1ffb | 1510 | keepDID = new_ndlp->nlp_DID; |
19ca7609 JS |
1511 | if (phba->sli_rev == LPFC_SLI_REV4) |
1512 | memcpy(&rrq.xri_bitmap, | |
1513 | &new_ndlp->active_rrqs.xri_bitmap, | |
1514 | sizeof(new_ndlp->active_rrqs.xri_bitmap)); | |
1515 | } else { | |
58da1ffb | 1516 | keepDID = new_ndlp->nlp_DID; |
19ca7609 JS |
1517 | if (phba->sli_rev == LPFC_SLI_REV4) |
1518 | memcpy(&rrq.xri_bitmap, | |
1519 | &new_ndlp->active_rrqs.xri_bitmap, | |
1520 | sizeof(new_ndlp->active_rrqs.xri_bitmap)); | |
1521 | } | |
488d1469 | 1522 | |
2e0fef85 | 1523 | lpfc_unreg_rpi(vport, new_ndlp); |
488d1469 | 1524 | new_ndlp->nlp_DID = ndlp->nlp_DID; |
92795650 | 1525 | new_ndlp->nlp_prev_state = ndlp->nlp_prev_state; |
19ca7609 JS |
1526 | if (phba->sli_rev == LPFC_SLI_REV4) |
1527 | memcpy(new_ndlp->active_rrqs.xri_bitmap, | |
1528 | &ndlp->active_rrqs.xri_bitmap, | |
1529 | sizeof(ndlp->active_rrqs.xri_bitmap)); | |
0ff10d46 JS |
1530 | |
1531 | if (ndlp->nlp_flag & NLP_NPR_2B_DISC) | |
1532 | new_ndlp->nlp_flag |= NLP_NPR_2B_DISC; | |
1533 | ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; | |
1534 | ||
e47c9093 | 1535 | /* Set state will put new_ndlp on to node list if not already done */ |
2e0fef85 | 1536 | lpfc_nlp_set_state(vport, new_ndlp, ndlp->nlp_state); |
488d1469 | 1537 | |
2e0fef85 | 1538 | /* Move this back to NPR state */ |
87af33fe JS |
1539 | if (memcmp(&ndlp->nlp_portname, name, sizeof(struct lpfc_name)) == 0) { |
1540 | /* The new_ndlp is replacing ndlp totally, so we need | |
1541 | * to put ndlp on UNUSED list and try to free it. | |
1542 | */ | |
34f5ad8b JS |
1543 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
1544 | "3179 PLOGI confirm NEW: %x %x\n", | |
1545 | new_ndlp->nlp_DID, keepDID); | |
0ff10d46 JS |
1546 | |
1547 | /* Fix up the rport accordingly */ | |
1548 | rport = ndlp->rport; | |
1549 | if (rport) { | |
1550 | rdata = rport->dd_data; | |
1551 | if (rdata->pnode == ndlp) { | |
1552 | lpfc_nlp_put(ndlp); | |
1553 | ndlp->rport = NULL; | |
1554 | rdata->pnode = lpfc_nlp_get(new_ndlp); | |
1555 | new_ndlp->rport = rport; | |
1556 | } | |
1557 | new_ndlp->nlp_type = ndlp->nlp_type; | |
1558 | } | |
58da1ffb JS |
1559 | /* We shall actually free the ndlp with both nlp_DID and |
1560 | * nlp_portname fields equals 0 to avoid any ndlp on the | |
1561 | * nodelist never to be used. | |
1562 | */ | |
1563 | if (ndlp->nlp_DID == 0) { | |
1564 | spin_lock_irq(&phba->ndlp_lock); | |
1565 | NLP_SET_FREE_REQ(ndlp); | |
1566 | spin_unlock_irq(&phba->ndlp_lock); | |
1567 | } | |
0ff10d46 | 1568 | |
58da1ffb JS |
1569 | /* Two ndlps cannot have the same did on the nodelist */ |
1570 | ndlp->nlp_DID = keepDID; | |
19ca7609 JS |
1571 | if (phba->sli_rev == LPFC_SLI_REV4) |
1572 | memcpy(&ndlp->active_rrqs.xri_bitmap, | |
1573 | &rrq.xri_bitmap, | |
1574 | sizeof(ndlp->active_rrqs.xri_bitmap)); | |
2e0fef85 | 1575 | lpfc_drop_node(vport, ndlp); |
87af33fe | 1576 | } |
92795650 | 1577 | else { |
34f5ad8b JS |
1578 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
1579 | "3180 PLOGI confirm SWAP: %x %x\n", | |
1580 | new_ndlp->nlp_DID, keepDID); | |
1581 | ||
2e0fef85 | 1582 | lpfc_unreg_rpi(vport, ndlp); |
34f5ad8b | 1583 | |
58da1ffb JS |
1584 | /* Two ndlps cannot have the same did */ |
1585 | ndlp->nlp_DID = keepDID; | |
19ca7609 JS |
1586 | if (phba->sli_rev == LPFC_SLI_REV4) |
1587 | memcpy(&ndlp->active_rrqs.xri_bitmap, | |
1588 | &rrq.xri_bitmap, | |
1589 | sizeof(ndlp->active_rrqs.xri_bitmap)); | |
34f5ad8b | 1590 | |
38b92ef8 | 1591 | /* Since we are swapping the ndlp passed in with the new one |
34f5ad8b JS |
1592 | * and the did has already been swapped, copy over state. |
1593 | * The new WWNs are already in new_ndlp since thats what | |
1594 | * we looked it up by in the begining of this routine. | |
38b92ef8 | 1595 | */ |
38b92ef8 | 1596 | new_ndlp->nlp_state = ndlp->nlp_state; |
34f5ad8b JS |
1597 | |
1598 | /* Since we are switching over to the new_ndlp, the old | |
1599 | * ndlp should be put in the NPR state, unless we have | |
1600 | * already started re-discovery on it. | |
1601 | */ | |
1602 | if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) || | |
1603 | (ndlp->nlp_state == NLP_STE_MAPPED_NODE)) | |
1604 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); | |
1605 | ||
38b92ef8 JS |
1606 | /* Fix up the rport accordingly */ |
1607 | rport = ndlp->rport; | |
1608 | if (rport) { | |
1609 | rdata = rport->dd_data; | |
1610 | put_node = rdata->pnode != NULL; | |
1611 | put_rport = ndlp->rport != NULL; | |
1612 | rdata->pnode = NULL; | |
1613 | ndlp->rport = NULL; | |
1614 | if (put_node) | |
1615 | lpfc_nlp_put(ndlp); | |
1616 | if (put_rport) | |
1617 | put_device(&rport->dev); | |
1618 | } | |
92795650 | 1619 | } |
488d1469 JS |
1620 | return new_ndlp; |
1621 | } | |
1622 | ||
e59058c4 | 1623 | /** |
3621a710 | 1624 | * lpfc_end_rscn - Check and handle more rscn for a vport |
e59058c4 JS |
1625 | * @vport: pointer to a host virtual N_Port data structure. |
1626 | * | |
1627 | * This routine checks whether more Registration State Change | |
1628 | * Notifications (RSCNs) came in while the discovery state machine was in | |
1629 | * the FC_RSCN_MODE. If so, the lpfc_els_handle_rscn() routine will be | |
1630 | * invoked to handle the additional RSCNs for the @vport. Otherwise, the | |
1631 | * FC_RSCN_MODE bit will be cleared with the @vport to mark as the end of | |
1632 | * handling the RSCNs. | |
1633 | **/ | |
87af33fe JS |
1634 | void |
1635 | lpfc_end_rscn(struct lpfc_vport *vport) | |
1636 | { | |
1637 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
1638 | ||
1639 | if (vport->fc_flag & FC_RSCN_MODE) { | |
1640 | /* | |
1641 | * Check to see if more RSCNs came in while we were | |
1642 | * processing this one. | |
1643 | */ | |
1644 | if (vport->fc_rscn_id_cnt || | |
1645 | (vport->fc_flag & FC_RSCN_DISCOVERY) != 0) | |
1646 | lpfc_els_handle_rscn(vport); | |
1647 | else { | |
1648 | spin_lock_irq(shost->host_lock); | |
1649 | vport->fc_flag &= ~FC_RSCN_MODE; | |
1650 | spin_unlock_irq(shost->host_lock); | |
1651 | } | |
1652 | } | |
1653 | } | |
1654 | ||
19ca7609 JS |
1655 | /** |
1656 | * lpfc_cmpl_els_rrq - Completion handled for els RRQs. | |
1657 | * @phba: pointer to lpfc hba data structure. | |
1658 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
1659 | * @rspiocb: pointer to lpfc response iocb data structure. | |
1660 | * | |
1661 | * This routine will call the clear rrq function to free the rrq and | |
1662 | * clear the xri's bit in the ndlp's xri_bitmap. If the ndlp does not | |
1663 | * exist then the clear_rrq is still called because the rrq needs to | |
1664 | * be freed. | |
1665 | **/ | |
1666 | ||
1667 | static void | |
1668 | lpfc_cmpl_els_rrq(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
1669 | struct lpfc_iocbq *rspiocb) | |
1670 | { | |
1671 | struct lpfc_vport *vport = cmdiocb->vport; | |
1672 | IOCB_t *irsp; | |
1673 | struct lpfc_nodelist *ndlp; | |
1674 | struct lpfc_node_rrq *rrq; | |
1675 | ||
1676 | /* we pass cmdiocb to state machine which needs rspiocb as well */ | |
1677 | rrq = cmdiocb->context_un.rrq; | |
1678 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
1679 | ||
1680 | irsp = &rspiocb->iocb; | |
1681 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, | |
1682 | "RRQ cmpl: status:x%x/x%x did:x%x", | |
1683 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1684 | irsp->un.elsreq64.remoteID); | |
1685 | ||
1686 | ndlp = lpfc_findnode_did(vport, irsp->un.elsreq64.remoteID); | |
1687 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || ndlp != rrq->ndlp) { | |
1688 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
1689 | "2882 RRQ completes to NPort x%x " | |
1690 | "with no ndlp. Data: x%x x%x x%x\n", | |
1691 | irsp->un.elsreq64.remoteID, | |
1692 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1693 | irsp->ulpIoTag); | |
1694 | goto out; | |
1695 | } | |
1696 | ||
1697 | /* rrq completes to NPort <nlp_DID> */ | |
1698 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
1699 | "2880 RRQ completes to NPort x%x " | |
1700 | "Data: x%x x%x x%x x%x x%x\n", | |
1701 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
1702 | irsp->ulpTimeout, rrq->xritag, rrq->rxid); | |
1703 | ||
1704 | if (irsp->ulpStatus) { | |
1705 | /* Check for retry */ | |
1706 | /* RRQ failed Don't print the vport to vport rjts */ | |
1707 | if (irsp->ulpStatus != IOSTAT_LS_RJT || | |
1708 | (((irsp->un.ulpWord[4]) >> 16 != LSRJT_INVALID_CMD) && | |
1709 | ((irsp->un.ulpWord[4]) >> 16 != LSRJT_UNABLE_TPC)) || | |
1710 | (phba)->pport->cfg_log_verbose & LOG_ELS) | |
1711 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
1712 | "2881 RRQ failure DID:%06X Status:x%x/x%x\n", | |
1713 | ndlp->nlp_DID, irsp->ulpStatus, | |
1714 | irsp->un.ulpWord[4]); | |
1715 | } | |
1716 | out: | |
1717 | if (rrq) | |
1718 | lpfc_clr_rrq_active(phba, rrq->xritag, rrq); | |
1719 | lpfc_els_free_iocb(phba, cmdiocb); | |
1720 | return; | |
1721 | } | |
e59058c4 | 1722 | /** |
3621a710 | 1723 | * lpfc_cmpl_els_plogi - Completion callback function for plogi |
e59058c4 JS |
1724 | * @phba: pointer to lpfc hba data structure. |
1725 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
1726 | * @rspiocb: pointer to lpfc response iocb data structure. | |
1727 | * | |
1728 | * This routine is the completion callback function for issuing the Port | |
1729 | * Login (PLOGI) command. For PLOGI completion, there must be an active | |
1730 | * ndlp on the vport node list that matches the remote node ID from the | |
25985edc | 1731 | * PLOGI response IOCB. If such ndlp does not exist, the PLOGI is simply |
e59058c4 JS |
1732 | * ignored and command IOCB released. The PLOGI response IOCB status is |
1733 | * checked for error conditons. If there is error status reported, PLOGI | |
1734 | * retry shall be attempted by invoking the lpfc_els_retry() routine. | |
1735 | * Otherwise, the lpfc_plogi_confirm_nport() routine shall be invoked on | |
1736 | * the ndlp and the NLP_EVT_CMPL_PLOGI state to the Discover State Machine | |
1737 | * (DSM) is set for this PLOGI completion. Finally, it checks whether | |
1738 | * there are additional N_Port nodes with the vport that need to perform | |
1739 | * PLOGI. If so, the lpfc_more_plogi() routine is invoked to issue addition | |
1740 | * PLOGIs. | |
1741 | **/ | |
dea3101e | 1742 | static void |
2e0fef85 JS |
1743 | lpfc_cmpl_els_plogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
1744 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 1745 | { |
2e0fef85 JS |
1746 | struct lpfc_vport *vport = cmdiocb->vport; |
1747 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e | 1748 | IOCB_t *irsp; |
dea3101e | 1749 | struct lpfc_nodelist *ndlp; |
92795650 | 1750 | struct lpfc_dmabuf *prsp; |
dea3101e JB |
1751 | int disc, rc, did, type; |
1752 | ||
dea3101e JB |
1753 | /* we pass cmdiocb to state machine which needs rspiocb as well */ |
1754 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
1755 | ||
1756 | irsp = &rspiocb->iocb; | |
858c9f6c JS |
1757 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1758 | "PLOGI cmpl: status:x%x/x%x did:x%x", | |
1759 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1760 | irsp->un.elsreq64.remoteID); | |
1761 | ||
2e0fef85 | 1762 | ndlp = lpfc_findnode_did(vport, irsp->un.elsreq64.remoteID); |
e47c9093 | 1763 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { |
e8b62011 JS |
1764 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
1765 | "0136 PLOGI completes to NPort x%x " | |
1766 | "with no ndlp. Data: x%x x%x x%x\n", | |
1767 | irsp->un.elsreq64.remoteID, | |
1768 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1769 | irsp->ulpIoTag); | |
488d1469 | 1770 | goto out; |
ed957684 | 1771 | } |
dea3101e JB |
1772 | |
1773 | /* Since ndlp can be freed in the disc state machine, note if this node | |
1774 | * is being used during discovery. | |
1775 | */ | |
2e0fef85 | 1776 | spin_lock_irq(shost->host_lock); |
dea3101e | 1777 | disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC); |
488d1469 | 1778 | ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; |
2e0fef85 | 1779 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
1780 | rc = 0; |
1781 | ||
1782 | /* PLOGI completes to NPort <nlp_DID> */ | |
e8b62011 JS |
1783 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
1784 | "0102 PLOGI completes to NPort x%x " | |
1785 | "Data: x%x x%x x%x x%x x%x\n", | |
1786 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
1787 | irsp->ulpTimeout, disc, vport->num_disc_nodes); | |
dea3101e | 1788 | /* Check to see if link went down during discovery */ |
2e0fef85 JS |
1789 | if (lpfc_els_chk_latt(vport)) { |
1790 | spin_lock_irq(shost->host_lock); | |
dea3101e | 1791 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 | 1792 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
1793 | goto out; |
1794 | } | |
1795 | ||
1796 | /* ndlp could be freed in DSM, save these values now */ | |
1797 | type = ndlp->nlp_type; | |
1798 | did = ndlp->nlp_DID; | |
1799 | ||
1800 | if (irsp->ulpStatus) { | |
1801 | /* Check for retry */ | |
1802 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { | |
1803 | /* ELS command is being retried */ | |
1804 | if (disc) { | |
2e0fef85 | 1805 | spin_lock_irq(shost->host_lock); |
dea3101e | 1806 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 | 1807 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
1808 | } |
1809 | goto out; | |
1810 | } | |
2a9bf3d0 JS |
1811 | /* PLOGI failed Don't print the vport to vport rjts */ |
1812 | if (irsp->ulpStatus != IOSTAT_LS_RJT || | |
1813 | (((irsp->un.ulpWord[4]) >> 16 != LSRJT_INVALID_CMD) && | |
1814 | ((irsp->un.ulpWord[4]) >> 16 != LSRJT_UNABLE_TPC)) || | |
1815 | (phba)->pport->cfg_log_verbose & LOG_ELS) | |
1816 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
e40a02c1 JS |
1817 | "2753 PLOGI failure DID:%06X Status:x%x/x%x\n", |
1818 | ndlp->nlp_DID, irsp->ulpStatus, | |
1819 | irsp->un.ulpWord[4]); | |
dea3101e | 1820 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ |
e47c9093 | 1821 | if (lpfc_error_lost_link(irsp)) |
c9f8735b | 1822 | rc = NLP_STE_FREED_NODE; |
e47c9093 | 1823 | else |
2e0fef85 | 1824 | rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 1825 | NLP_EVT_CMPL_PLOGI); |
dea3101e JB |
1826 | } else { |
1827 | /* Good status, call state machine */ | |
92795650 | 1828 | prsp = list_entry(((struct lpfc_dmabuf *) |
92d7f7b0 JS |
1829 | cmdiocb->context2)->list.next, |
1830 | struct lpfc_dmabuf, list); | |
1831 | ndlp = lpfc_plogi_confirm_nport(phba, prsp->virt, ndlp); | |
2e0fef85 | 1832 | rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 1833 | NLP_EVT_CMPL_PLOGI); |
dea3101e JB |
1834 | } |
1835 | ||
2e0fef85 | 1836 | if (disc && vport->num_disc_nodes) { |
dea3101e | 1837 | /* Check to see if there are more PLOGIs to be sent */ |
2e0fef85 | 1838 | lpfc_more_plogi(vport); |
dea3101e | 1839 | |
2e0fef85 JS |
1840 | if (vport->num_disc_nodes == 0) { |
1841 | spin_lock_irq(shost->host_lock); | |
1842 | vport->fc_flag &= ~FC_NDISC_ACTIVE; | |
1843 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 1844 | |
2e0fef85 | 1845 | lpfc_can_disctmo(vport); |
87af33fe | 1846 | lpfc_end_rscn(vport); |
dea3101e JB |
1847 | } |
1848 | } | |
1849 | ||
1850 | out: | |
1851 | lpfc_els_free_iocb(phba, cmdiocb); | |
1852 | return; | |
1853 | } | |
1854 | ||
e59058c4 | 1855 | /** |
3621a710 | 1856 | * lpfc_issue_els_plogi - Issue an plogi iocb command for a vport |
e59058c4 JS |
1857 | * @vport: pointer to a host virtual N_Port data structure. |
1858 | * @did: destination port identifier. | |
1859 | * @retry: number of retries to the command IOCB. | |
1860 | * | |
1861 | * This routine issues a Port Login (PLOGI) command to a remote N_Port | |
1862 | * (with the @did) for a @vport. Before issuing a PLOGI to a remote N_Port, | |
1863 | * the ndlp with the remote N_Port DID must exist on the @vport's ndlp list. | |
1864 | * This routine constructs the proper feilds of the PLOGI IOCB and invokes | |
1865 | * the lpfc_sli_issue_iocb() routine to send out PLOGI ELS command. | |
1866 | * | |
1867 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
1868 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
1869 | * will be stored into the context1 field of the IOCB for the completion | |
1870 | * callback function to the PLOGI ELS command. | |
1871 | * | |
1872 | * Return code | |
1873 | * 0 - Successfully issued a plogi for @vport | |
1874 | * 1 - failed to issue a plogi for @vport | |
1875 | **/ | |
dea3101e | 1876 | int |
2e0fef85 | 1877 | lpfc_issue_els_plogi(struct lpfc_vport *vport, uint32_t did, uint8_t retry) |
dea3101e | 1878 | { |
2e0fef85 | 1879 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
1880 | struct serv_parm *sp; |
1881 | IOCB_t *icmd; | |
98c9ea5c | 1882 | struct lpfc_nodelist *ndlp; |
dea3101e | 1883 | struct lpfc_iocbq *elsiocb; |
dea3101e JB |
1884 | struct lpfc_sli *psli; |
1885 | uint8_t *pcmd; | |
1886 | uint16_t cmdsize; | |
92d7f7b0 | 1887 | int ret; |
dea3101e JB |
1888 | |
1889 | psli = &phba->sli; | |
dea3101e | 1890 | |
98c9ea5c | 1891 | ndlp = lpfc_findnode_did(vport, did); |
e47c9093 JS |
1892 | if (ndlp && !NLP_CHK_NODE_ACT(ndlp)) |
1893 | ndlp = NULL; | |
98c9ea5c | 1894 | |
e47c9093 | 1895 | /* If ndlp is not NULL, we will bump the reference count on it */ |
92d7f7b0 | 1896 | cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); |
98c9ea5c | 1897 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did, |
2e0fef85 | 1898 | ELS_CMD_PLOGI); |
c9f8735b JW |
1899 | if (!elsiocb) |
1900 | return 1; | |
dea3101e JB |
1901 | |
1902 | icmd = &elsiocb->iocb; | |
1903 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
1904 | ||
1905 | /* For PLOGI request, remainder of payload is service parameters */ | |
1906 | *((uint32_t *) (pcmd)) = ELS_CMD_PLOGI; | |
92d7f7b0 JS |
1907 | pcmd += sizeof(uint32_t); |
1908 | memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); | |
dea3101e JB |
1909 | sp = (struct serv_parm *) pcmd; |
1910 | ||
5ac6b303 JS |
1911 | /* |
1912 | * If we are a N-port connected to a Fabric, fix-up paramm's so logins | |
1913 | * to device on remote loops work. | |
1914 | */ | |
1915 | if ((vport->fc_flag & FC_FABRIC) && !(vport->fc_flag & FC_PUBLIC_LOOP)) | |
1916 | sp->cmn.altBbCredit = 1; | |
1917 | ||
dea3101e JB |
1918 | if (sp->cmn.fcphLow < FC_PH_4_3) |
1919 | sp->cmn.fcphLow = FC_PH_4_3; | |
1920 | ||
1921 | if (sp->cmn.fcphHigh < FC_PH3) | |
1922 | sp->cmn.fcphHigh = FC_PH3; | |
1923 | ||
858c9f6c JS |
1924 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1925 | "Issue PLOGI: did:x%x", | |
1926 | did, 0, 0); | |
1927 | ||
dea3101e JB |
1928 | phba->fc_stat.elsXmitPLOGI++; |
1929 | elsiocb->iocb_cmpl = lpfc_cmpl_els_plogi; | |
3772a991 | 1930 | ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
92d7f7b0 JS |
1931 | |
1932 | if (ret == IOCB_ERROR) { | |
dea3101e | 1933 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 1934 | return 1; |
dea3101e | 1935 | } |
c9f8735b | 1936 | return 0; |
dea3101e JB |
1937 | } |
1938 | ||
e59058c4 | 1939 | /** |
3621a710 | 1940 | * lpfc_cmpl_els_prli - Completion callback function for prli |
e59058c4 JS |
1941 | * @phba: pointer to lpfc hba data structure. |
1942 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
1943 | * @rspiocb: pointer to lpfc response iocb data structure. | |
1944 | * | |
1945 | * This routine is the completion callback function for a Process Login | |
1946 | * (PRLI) ELS command. The PRLI response IOCB status is checked for error | |
1947 | * status. If there is error status reported, PRLI retry shall be attempted | |
1948 | * by invoking the lpfc_els_retry() routine. Otherwise, the state | |
1949 | * NLP_EVT_CMPL_PRLI is sent to the Discover State Machine (DSM) for this | |
1950 | * ndlp to mark the PRLI completion. | |
1951 | **/ | |
dea3101e | 1952 | static void |
2e0fef85 JS |
1953 | lpfc_cmpl_els_prli(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
1954 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 1955 | { |
2e0fef85 JS |
1956 | struct lpfc_vport *vport = cmdiocb->vport; |
1957 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e JB |
1958 | IOCB_t *irsp; |
1959 | struct lpfc_sli *psli; | |
1960 | struct lpfc_nodelist *ndlp; | |
1961 | ||
1962 | psli = &phba->sli; | |
1963 | /* we pass cmdiocb to state machine which needs rspiocb as well */ | |
1964 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
1965 | ||
1966 | irsp = &(rspiocb->iocb); | |
1967 | ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
2e0fef85 | 1968 | spin_lock_irq(shost->host_lock); |
dea3101e | 1969 | ndlp->nlp_flag &= ~NLP_PRLI_SND; |
2e0fef85 | 1970 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1971 | |
858c9f6c JS |
1972 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1973 | "PRLI cmpl: status:x%x/x%x did:x%x", | |
1974 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1975 | ndlp->nlp_DID); | |
dea3101e | 1976 | /* PRLI completes to NPort <nlp_DID> */ |
e8b62011 JS |
1977 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
1978 | "0103 PRLI completes to NPort x%x " | |
1979 | "Data: x%x x%x x%x x%x\n", | |
1980 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
1981 | irsp->ulpTimeout, vport->num_disc_nodes); | |
dea3101e | 1982 | |
2e0fef85 | 1983 | vport->fc_prli_sent--; |
dea3101e | 1984 | /* Check to see if link went down during discovery */ |
2e0fef85 | 1985 | if (lpfc_els_chk_latt(vport)) |
dea3101e JB |
1986 | goto out; |
1987 | ||
1988 | if (irsp->ulpStatus) { | |
1989 | /* Check for retry */ | |
1990 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { | |
1991 | /* ELS command is being retried */ | |
1992 | goto out; | |
1993 | } | |
1994 | /* PRLI failed */ | |
e40a02c1 JS |
1995 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
1996 | "2754 PRLI failure DID:%06X Status:x%x/x%x\n", | |
1997 | ndlp->nlp_DID, irsp->ulpStatus, | |
1998 | irsp->un.ulpWord[4]); | |
dea3101e | 1999 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ |
e47c9093 | 2000 | if (lpfc_error_lost_link(irsp)) |
dea3101e | 2001 | goto out; |
e47c9093 | 2002 | else |
2e0fef85 | 2003 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 2004 | NLP_EVT_CMPL_PRLI); |
e47c9093 | 2005 | } else |
dea3101e | 2006 | /* Good status, call state machine */ |
2e0fef85 | 2007 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 2008 | NLP_EVT_CMPL_PRLI); |
dea3101e JB |
2009 | out: |
2010 | lpfc_els_free_iocb(phba, cmdiocb); | |
2011 | return; | |
2012 | } | |
2013 | ||
e59058c4 | 2014 | /** |
3621a710 | 2015 | * lpfc_issue_els_prli - Issue a prli iocb command for a vport |
e59058c4 JS |
2016 | * @vport: pointer to a host virtual N_Port data structure. |
2017 | * @ndlp: pointer to a node-list data structure. | |
2018 | * @retry: number of retries to the command IOCB. | |
2019 | * | |
2020 | * This routine issues a Process Login (PRLI) ELS command for the | |
2021 | * @vport. The PRLI service parameters are set up in the payload of the | |
2022 | * PRLI Request command and the pointer to lpfc_cmpl_els_prli() routine | |
2023 | * is put to the IOCB completion callback func field before invoking the | |
2024 | * routine lpfc_sli_issue_iocb() to send out PRLI command. | |
2025 | * | |
2026 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
2027 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
2028 | * will be stored into the context1 field of the IOCB for the completion | |
2029 | * callback function to the PRLI ELS command. | |
2030 | * | |
2031 | * Return code | |
2032 | * 0 - successfully issued prli iocb command for @vport | |
2033 | * 1 - failed to issue prli iocb command for @vport | |
2034 | **/ | |
dea3101e | 2035 | int |
2e0fef85 | 2036 | lpfc_issue_els_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
dea3101e JB |
2037 | uint8_t retry) |
2038 | { | |
2e0fef85 JS |
2039 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
2040 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
2041 | PRLI *npr; |
2042 | IOCB_t *icmd; | |
2043 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
2044 | uint8_t *pcmd; |
2045 | uint16_t cmdsize; | |
2046 | ||
92d7f7b0 | 2047 | cmdsize = (sizeof(uint32_t) + sizeof(PRLI)); |
2e0fef85 JS |
2048 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
2049 | ndlp->nlp_DID, ELS_CMD_PRLI); | |
488d1469 | 2050 | if (!elsiocb) |
c9f8735b | 2051 | return 1; |
dea3101e JB |
2052 | |
2053 | icmd = &elsiocb->iocb; | |
2054 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
2055 | ||
2056 | /* For PRLI request, remainder of payload is service parameters */ | |
92d7f7b0 | 2057 | memset(pcmd, 0, (sizeof(PRLI) + sizeof(uint32_t))); |
dea3101e | 2058 | *((uint32_t *) (pcmd)) = ELS_CMD_PRLI; |
92d7f7b0 | 2059 | pcmd += sizeof(uint32_t); |
dea3101e JB |
2060 | |
2061 | /* For PRLI, remainder of payload is PRLI parameter page */ | |
2062 | npr = (PRLI *) pcmd; | |
2063 | /* | |
2064 | * If our firmware version is 3.20 or later, | |
2065 | * set the following bits for FC-TAPE support. | |
2066 | */ | |
2067 | if (phba->vpd.rev.feaLevelHigh >= 0x02) { | |
2068 | npr->ConfmComplAllowed = 1; | |
2069 | npr->Retry = 1; | |
2070 | npr->TaskRetryIdReq = 1; | |
2071 | } | |
2072 | npr->estabImagePair = 1; | |
2073 | npr->readXferRdyDis = 1; | |
2074 | ||
2075 | /* For FCP support */ | |
2076 | npr->prliType = PRLI_FCP_TYPE; | |
2077 | npr->initiatorFunc = 1; | |
2078 | ||
858c9f6c JS |
2079 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2080 | "Issue PRLI: did:x%x", | |
2081 | ndlp->nlp_DID, 0, 0); | |
2082 | ||
dea3101e JB |
2083 | phba->fc_stat.elsXmitPRLI++; |
2084 | elsiocb->iocb_cmpl = lpfc_cmpl_els_prli; | |
2e0fef85 | 2085 | spin_lock_irq(shost->host_lock); |
dea3101e | 2086 | ndlp->nlp_flag |= NLP_PRLI_SND; |
2e0fef85 | 2087 | spin_unlock_irq(shost->host_lock); |
3772a991 JS |
2088 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
2089 | IOCB_ERROR) { | |
2e0fef85 | 2090 | spin_lock_irq(shost->host_lock); |
dea3101e | 2091 | ndlp->nlp_flag &= ~NLP_PRLI_SND; |
2e0fef85 | 2092 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2093 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 2094 | return 1; |
dea3101e | 2095 | } |
2e0fef85 | 2096 | vport->fc_prli_sent++; |
c9f8735b | 2097 | return 0; |
dea3101e JB |
2098 | } |
2099 | ||
90160e01 | 2100 | /** |
3621a710 | 2101 | * lpfc_rscn_disc - Perform rscn discovery for a vport |
90160e01 JS |
2102 | * @vport: pointer to a host virtual N_Port data structure. |
2103 | * | |
2104 | * This routine performs Registration State Change Notification (RSCN) | |
2105 | * discovery for a @vport. If the @vport's node port recovery count is not | |
2106 | * zero, it will invoke the lpfc_els_disc_plogi() to perform PLOGI for all | |
2107 | * the nodes that need recovery. If none of the PLOGI were needed through | |
2108 | * the lpfc_els_disc_plogi() routine, the lpfc_end_rscn() routine shall be | |
2109 | * invoked to check and handle possible more RSCN came in during the period | |
2110 | * of processing the current ones. | |
2111 | **/ | |
2112 | static void | |
2113 | lpfc_rscn_disc(struct lpfc_vport *vport) | |
2114 | { | |
2115 | lpfc_can_disctmo(vport); | |
2116 | ||
2117 | /* RSCN discovery */ | |
2118 | /* go thru NPR nodes and issue ELS PLOGIs */ | |
2119 | if (vport->fc_npr_cnt) | |
2120 | if (lpfc_els_disc_plogi(vport)) | |
2121 | return; | |
2122 | ||
2123 | lpfc_end_rscn(vport); | |
2124 | } | |
2125 | ||
2126 | /** | |
3621a710 | 2127 | * lpfc_adisc_done - Complete the adisc phase of discovery |
90160e01 JS |
2128 | * @vport: pointer to lpfc_vport hba data structure that finished all ADISCs. |
2129 | * | |
2130 | * This function is called when the final ADISC is completed during discovery. | |
2131 | * This function handles clearing link attention or issuing reg_vpi depending | |
2132 | * on whether npiv is enabled. This function also kicks off the PLOGI phase of | |
2133 | * discovery. | |
2134 | * This function is called with no locks held. | |
2135 | **/ | |
2136 | static void | |
2137 | lpfc_adisc_done(struct lpfc_vport *vport) | |
2138 | { | |
2139 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
2140 | struct lpfc_hba *phba = vport->phba; | |
2141 | ||
2142 | /* | |
2143 | * For NPIV, cmpl_reg_vpi will set port_state to READY, | |
2144 | * and continue discovery. | |
2145 | */ | |
2146 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && | |
6fb120a7 JS |
2147 | !(vport->fc_flag & FC_RSCN_MODE) && |
2148 | (phba->sli_rev < LPFC_SLI_REV4)) { | |
90160e01 JS |
2149 | lpfc_issue_reg_vpi(phba, vport); |
2150 | return; | |
2151 | } | |
2152 | /* | |
2153 | * For SLI2, we need to set port_state to READY | |
2154 | * and continue discovery. | |
2155 | */ | |
2156 | if (vport->port_state < LPFC_VPORT_READY) { | |
2157 | /* If we get here, there is nothing to ADISC */ | |
2158 | if (vport->port_type == LPFC_PHYSICAL_PORT) | |
2159 | lpfc_issue_clear_la(phba, vport); | |
2160 | if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) { | |
2161 | vport->num_disc_nodes = 0; | |
2162 | /* go thru NPR list, issue ELS PLOGIs */ | |
2163 | if (vport->fc_npr_cnt) | |
2164 | lpfc_els_disc_plogi(vport); | |
2165 | if (!vport->num_disc_nodes) { | |
2166 | spin_lock_irq(shost->host_lock); | |
2167 | vport->fc_flag &= ~FC_NDISC_ACTIVE; | |
2168 | spin_unlock_irq(shost->host_lock); | |
2169 | lpfc_can_disctmo(vport); | |
2170 | lpfc_end_rscn(vport); | |
2171 | } | |
2172 | } | |
2173 | vport->port_state = LPFC_VPORT_READY; | |
2174 | } else | |
2175 | lpfc_rscn_disc(vport); | |
2176 | } | |
2177 | ||
e59058c4 | 2178 | /** |
3621a710 | 2179 | * lpfc_more_adisc - Issue more adisc as needed |
e59058c4 JS |
2180 | * @vport: pointer to a host virtual N_Port data structure. |
2181 | * | |
2182 | * This routine determines whether there are more ndlps on a @vport | |
2183 | * node list need to have Address Discover (ADISC) issued. If so, it will | |
2184 | * invoke the lpfc_els_disc_adisc() routine to issue ADISC on the @vport's | |
2185 | * remaining nodes which need to have ADISC sent. | |
2186 | **/ | |
0ff10d46 | 2187 | void |
2e0fef85 | 2188 | lpfc_more_adisc(struct lpfc_vport *vport) |
dea3101e JB |
2189 | { |
2190 | int sentadisc; | |
2191 | ||
2e0fef85 JS |
2192 | if (vport->num_disc_nodes) |
2193 | vport->num_disc_nodes--; | |
dea3101e | 2194 | /* Continue discovery with <num_disc_nodes> ADISCs to go */ |
e8b62011 JS |
2195 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
2196 | "0210 Continue discovery with %d ADISCs to go " | |
2197 | "Data: x%x x%x x%x\n", | |
2198 | vport->num_disc_nodes, vport->fc_adisc_cnt, | |
2199 | vport->fc_flag, vport->port_state); | |
dea3101e | 2200 | /* Check to see if there are more ADISCs to be sent */ |
2e0fef85 JS |
2201 | if (vport->fc_flag & FC_NLP_MORE) { |
2202 | lpfc_set_disctmo(vport); | |
2203 | /* go thru NPR nodes and issue any remaining ELS ADISCs */ | |
2204 | sentadisc = lpfc_els_disc_adisc(vport); | |
dea3101e | 2205 | } |
90160e01 JS |
2206 | if (!vport->num_disc_nodes) |
2207 | lpfc_adisc_done(vport); | |
dea3101e JB |
2208 | return; |
2209 | } | |
2210 | ||
e59058c4 | 2211 | /** |
3621a710 | 2212 | * lpfc_cmpl_els_adisc - Completion callback function for adisc |
e59058c4 JS |
2213 | * @phba: pointer to lpfc hba data structure. |
2214 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
2215 | * @rspiocb: pointer to lpfc response iocb data structure. | |
2216 | * | |
2217 | * This routine is the completion function for issuing the Address Discover | |
2218 | * (ADISC) command. It first checks to see whether link went down during | |
2219 | * the discovery process. If so, the node will be marked as node port | |
2220 | * recovery for issuing discover IOCB by the link attention handler and | |
2221 | * exit. Otherwise, the response status is checked. If error was reported | |
2222 | * in the response status, the ADISC command shall be retried by invoking | |
2223 | * the lpfc_els_retry() routine. Otherwise, if no error was reported in | |
2224 | * the response status, the state machine is invoked to set transition | |
2225 | * with respect to NLP_EVT_CMPL_ADISC event. | |
2226 | **/ | |
dea3101e | 2227 | static void |
2e0fef85 JS |
2228 | lpfc_cmpl_els_adisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
2229 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 2230 | { |
2e0fef85 JS |
2231 | struct lpfc_vport *vport = cmdiocb->vport; |
2232 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e | 2233 | IOCB_t *irsp; |
dea3101e | 2234 | struct lpfc_nodelist *ndlp; |
2e0fef85 | 2235 | int disc; |
dea3101e JB |
2236 | |
2237 | /* we pass cmdiocb to state machine which needs rspiocb as well */ | |
2238 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
2239 | ||
2240 | irsp = &(rspiocb->iocb); | |
2241 | ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
dea3101e | 2242 | |
858c9f6c JS |
2243 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2244 | "ADISC cmpl: status:x%x/x%x did:x%x", | |
2245 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
2246 | ndlp->nlp_DID); | |
2247 | ||
dea3101e JB |
2248 | /* Since ndlp can be freed in the disc state machine, note if this node |
2249 | * is being used during discovery. | |
2250 | */ | |
2e0fef85 | 2251 | spin_lock_irq(shost->host_lock); |
dea3101e | 2252 | disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC); |
c9f8735b | 2253 | ndlp->nlp_flag &= ~(NLP_ADISC_SND | NLP_NPR_2B_DISC); |
2e0fef85 | 2254 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2255 | /* ADISC completes to NPort <nlp_DID> */ |
e8b62011 JS |
2256 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
2257 | "0104 ADISC completes to NPort x%x " | |
2258 | "Data: x%x x%x x%x x%x x%x\n", | |
2259 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
2260 | irsp->ulpTimeout, disc, vport->num_disc_nodes); | |
dea3101e | 2261 | /* Check to see if link went down during discovery */ |
2e0fef85 JS |
2262 | if (lpfc_els_chk_latt(vport)) { |
2263 | spin_lock_irq(shost->host_lock); | |
dea3101e | 2264 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 | 2265 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
2266 | goto out; |
2267 | } | |
2268 | ||
2269 | if (irsp->ulpStatus) { | |
2270 | /* Check for retry */ | |
2271 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { | |
2272 | /* ELS command is being retried */ | |
2273 | if (disc) { | |
2e0fef85 | 2274 | spin_lock_irq(shost->host_lock); |
dea3101e | 2275 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 JS |
2276 | spin_unlock_irq(shost->host_lock); |
2277 | lpfc_set_disctmo(vport); | |
dea3101e JB |
2278 | } |
2279 | goto out; | |
2280 | } | |
2281 | /* ADISC failed */ | |
e40a02c1 JS |
2282 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
2283 | "2755 ADISC failure DID:%06X Status:x%x/x%x\n", | |
2284 | ndlp->nlp_DID, irsp->ulpStatus, | |
2285 | irsp->un.ulpWord[4]); | |
dea3101e | 2286 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ |
e47c9093 | 2287 | if (!lpfc_error_lost_link(irsp)) |
2e0fef85 | 2288 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
858c9f6c | 2289 | NLP_EVT_CMPL_ADISC); |
e47c9093 | 2290 | } else |
dea3101e | 2291 | /* Good status, call state machine */ |
2e0fef85 | 2292 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
dea3101e | 2293 | NLP_EVT_CMPL_ADISC); |
dea3101e | 2294 | |
90160e01 JS |
2295 | /* Check to see if there are more ADISCs to be sent */ |
2296 | if (disc && vport->num_disc_nodes) | |
2e0fef85 | 2297 | lpfc_more_adisc(vport); |
dea3101e JB |
2298 | out: |
2299 | lpfc_els_free_iocb(phba, cmdiocb); | |
2300 | return; | |
2301 | } | |
2302 | ||
e59058c4 | 2303 | /** |
3621a710 | 2304 | * lpfc_issue_els_adisc - Issue an address discover iocb to an node on a vport |
e59058c4 JS |
2305 | * @vport: pointer to a virtual N_Port data structure. |
2306 | * @ndlp: pointer to a node-list data structure. | |
2307 | * @retry: number of retries to the command IOCB. | |
2308 | * | |
2309 | * This routine issues an Address Discover (ADISC) for an @ndlp on a | |
2310 | * @vport. It prepares the payload of the ADISC ELS command, updates the | |
2311 | * and states of the ndlp, and invokes the lpfc_sli_issue_iocb() routine | |
2312 | * to issue the ADISC ELS command. | |
2313 | * | |
2314 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
2315 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
2316 | * will be stored into the context1 field of the IOCB for the completion | |
2317 | * callback function to the ADISC ELS command. | |
2318 | * | |
2319 | * Return code | |
2320 | * 0 - successfully issued adisc | |
2321 | * 1 - failed to issue adisc | |
2322 | **/ | |
dea3101e | 2323 | int |
2e0fef85 | 2324 | lpfc_issue_els_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
dea3101e JB |
2325 | uint8_t retry) |
2326 | { | |
2e0fef85 JS |
2327 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
2328 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
2329 | ADISC *ap; |
2330 | IOCB_t *icmd; | |
2331 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
2332 | uint8_t *pcmd; |
2333 | uint16_t cmdsize; | |
2334 | ||
92d7f7b0 | 2335 | cmdsize = (sizeof(uint32_t) + sizeof(ADISC)); |
2e0fef85 JS |
2336 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
2337 | ndlp->nlp_DID, ELS_CMD_ADISC); | |
488d1469 | 2338 | if (!elsiocb) |
c9f8735b | 2339 | return 1; |
dea3101e JB |
2340 | |
2341 | icmd = &elsiocb->iocb; | |
2342 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
2343 | ||
2344 | /* For ADISC request, remainder of payload is service parameters */ | |
2345 | *((uint32_t *) (pcmd)) = ELS_CMD_ADISC; | |
92d7f7b0 | 2346 | pcmd += sizeof(uint32_t); |
dea3101e JB |
2347 | |
2348 | /* Fill in ADISC payload */ | |
2349 | ap = (ADISC *) pcmd; | |
2350 | ap->hardAL_PA = phba->fc_pref_ALPA; | |
92d7f7b0 JS |
2351 | memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name)); |
2352 | memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
2e0fef85 | 2353 | ap->DID = be32_to_cpu(vport->fc_myDID); |
dea3101e | 2354 | |
858c9f6c JS |
2355 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2356 | "Issue ADISC: did:x%x", | |
2357 | ndlp->nlp_DID, 0, 0); | |
2358 | ||
dea3101e JB |
2359 | phba->fc_stat.elsXmitADISC++; |
2360 | elsiocb->iocb_cmpl = lpfc_cmpl_els_adisc; | |
2e0fef85 | 2361 | spin_lock_irq(shost->host_lock); |
dea3101e | 2362 | ndlp->nlp_flag |= NLP_ADISC_SND; |
2e0fef85 | 2363 | spin_unlock_irq(shost->host_lock); |
3772a991 JS |
2364 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
2365 | IOCB_ERROR) { | |
2e0fef85 | 2366 | spin_lock_irq(shost->host_lock); |
dea3101e | 2367 | ndlp->nlp_flag &= ~NLP_ADISC_SND; |
2e0fef85 | 2368 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2369 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 2370 | return 1; |
dea3101e | 2371 | } |
c9f8735b | 2372 | return 0; |
dea3101e JB |
2373 | } |
2374 | ||
e59058c4 | 2375 | /** |
3621a710 | 2376 | * lpfc_cmpl_els_logo - Completion callback function for logo |
e59058c4 JS |
2377 | * @phba: pointer to lpfc hba data structure. |
2378 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
2379 | * @rspiocb: pointer to lpfc response iocb data structure. | |
2380 | * | |
2381 | * This routine is the completion function for issuing the ELS Logout (LOGO) | |
2382 | * command. If no error status was reported from the LOGO response, the | |
2383 | * state machine of the associated ndlp shall be invoked for transition with | |
2384 | * respect to NLP_EVT_CMPL_LOGO event. Otherwise, if error status was reported, | |
2385 | * the lpfc_els_retry() routine will be invoked to retry the LOGO command. | |
2386 | **/ | |
dea3101e | 2387 | static void |
2e0fef85 JS |
2388 | lpfc_cmpl_els_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
2389 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 2390 | { |
2e0fef85 JS |
2391 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; |
2392 | struct lpfc_vport *vport = ndlp->vport; | |
2393 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e JB |
2394 | IOCB_t *irsp; |
2395 | struct lpfc_sli *psli; | |
92494144 | 2396 | struct lpfcMboxq *mbox; |
086a345f JS |
2397 | unsigned long flags; |
2398 | uint32_t skip_recovery = 0; | |
dea3101e JB |
2399 | |
2400 | psli = &phba->sli; | |
2401 | /* we pass cmdiocb to state machine which needs rspiocb as well */ | |
2402 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
2403 | ||
2404 | irsp = &(rspiocb->iocb); | |
2e0fef85 | 2405 | spin_lock_irq(shost->host_lock); |
dea3101e | 2406 | ndlp->nlp_flag &= ~NLP_LOGO_SND; |
2e0fef85 | 2407 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2408 | |
858c9f6c JS |
2409 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2410 | "LOGO cmpl: status:x%x/x%x did:x%x", | |
2411 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
2412 | ndlp->nlp_DID); | |
086a345f | 2413 | |
dea3101e | 2414 | /* LOGO completes to NPort <nlp_DID> */ |
e8b62011 JS |
2415 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
2416 | "0105 LOGO completes to NPort x%x " | |
2417 | "Data: x%x x%x x%x x%x\n", | |
2418 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
2419 | irsp->ulpTimeout, vport->num_disc_nodes); | |
086a345f JS |
2420 | |
2421 | if (lpfc_els_chk_latt(vport)) { | |
2422 | skip_recovery = 1; | |
dea3101e | 2423 | goto out; |
086a345f | 2424 | } |
dea3101e | 2425 | |
086a345f | 2426 | /* Check to see if link went down during discovery */ |
92d7f7b0 JS |
2427 | if (ndlp->nlp_flag & NLP_TARGET_REMOVE) { |
2428 | /* NLP_EVT_DEVICE_RM should unregister the RPI | |
2429 | * which should abort all outstanding IOs. | |
2430 | */ | |
2431 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, | |
2432 | NLP_EVT_DEVICE_RM); | |
086a345f | 2433 | skip_recovery = 1; |
92d7f7b0 JS |
2434 | goto out; |
2435 | } | |
2436 | ||
dea3101e JB |
2437 | if (irsp->ulpStatus) { |
2438 | /* Check for retry */ | |
086a345f | 2439 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { |
dea3101e | 2440 | /* ELS command is being retried */ |
086a345f | 2441 | skip_recovery = 1; |
dea3101e | 2442 | goto out; |
086a345f | 2443 | } |
dea3101e | 2444 | /* LOGO failed */ |
e40a02c1 JS |
2445 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
2446 | "2756 LOGO failure DID:%06X Status:x%x/x%x\n", | |
2447 | ndlp->nlp_DID, irsp->ulpStatus, | |
2448 | irsp->un.ulpWord[4]); | |
dea3101e | 2449 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ |
086a345f JS |
2450 | if (lpfc_error_lost_link(irsp)) { |
2451 | skip_recovery = 1; | |
dea3101e | 2452 | goto out; |
086a345f JS |
2453 | } |
2454 | } | |
2455 | ||
2456 | /* Call state machine. This will unregister the rpi if needed. */ | |
2457 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, NLP_EVT_CMPL_LOGO); | |
2458 | ||
dea3101e JB |
2459 | out: |
2460 | lpfc_els_free_iocb(phba, cmdiocb); | |
92494144 JS |
2461 | /* If we are in pt2pt mode, we could rcv new S_ID on PLOGI */ |
2462 | if ((vport->fc_flag & FC_PT2PT) && | |
2463 | !(vport->fc_flag & FC_PT2PT_PLOGI)) { | |
2464 | phba->pport->fc_myDID = 0; | |
2465 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
2466 | if (mbox) { | |
2467 | lpfc_config_link(phba, mbox); | |
2468 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
2469 | mbox->vport = vport; | |
2470 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) == | |
2471 | MBX_NOT_FINISHED) { | |
2472 | mempool_free(mbox, phba->mbox_mem_pool); | |
086a345f | 2473 | skip_recovery = 1; |
92494144 JS |
2474 | } |
2475 | } | |
2476 | } | |
086a345f JS |
2477 | |
2478 | /* | |
2479 | * If the node is a target, the handling attempts to recover the port. | |
2480 | * For any other port type, the rpi is unregistered as an implicit | |
2481 | * LOGO. | |
2482 | */ | |
2483 | if ((ndlp->nlp_type & NLP_FCP_TARGET) && (skip_recovery == 0)) { | |
2484 | lpfc_cancel_retry_delay_tmo(vport, ndlp); | |
2485 | spin_lock_irqsave(shost->host_lock, flags); | |
2486 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; | |
2487 | spin_unlock_irqrestore(shost->host_lock, flags); | |
2488 | ||
2489 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
2490 | "3187 LOGO completes to NPort x%x: Start " | |
2491 | "Recovery Data: x%x x%x x%x x%x\n", | |
2492 | ndlp->nlp_DID, irsp->ulpStatus, | |
2493 | irsp->un.ulpWord[4], irsp->ulpTimeout, | |
2494 | vport->num_disc_nodes); | |
2495 | lpfc_disc_start(vport); | |
2496 | } | |
dea3101e JB |
2497 | return; |
2498 | } | |
2499 | ||
e59058c4 | 2500 | /** |
3621a710 | 2501 | * lpfc_issue_els_logo - Issue a logo to an node on a vport |
e59058c4 JS |
2502 | * @vport: pointer to a virtual N_Port data structure. |
2503 | * @ndlp: pointer to a node-list data structure. | |
2504 | * @retry: number of retries to the command IOCB. | |
2505 | * | |
2506 | * This routine constructs and issues an ELS Logout (LOGO) iocb command | |
2507 | * to a remote node, referred by an @ndlp on a @vport. It constructs the | |
2508 | * payload of the IOCB, properly sets up the @ndlp state, and invokes the | |
2509 | * lpfc_sli_issue_iocb() routine to send out the LOGO ELS command. | |
2510 | * | |
2511 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
2512 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
2513 | * will be stored into the context1 field of the IOCB for the completion | |
2514 | * callback function to the LOGO ELS command. | |
2515 | * | |
2516 | * Return code | |
2517 | * 0 - successfully issued logo | |
2518 | * 1 - failed to issue logo | |
2519 | **/ | |
dea3101e | 2520 | int |
2e0fef85 | 2521 | lpfc_issue_els_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
dea3101e JB |
2522 | uint8_t retry) |
2523 | { | |
2e0fef85 JS |
2524 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
2525 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
2526 | IOCB_t *icmd; |
2527 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
2528 | uint8_t *pcmd; |
2529 | uint16_t cmdsize; | |
92d7f7b0 | 2530 | int rc; |
dea3101e | 2531 | |
98c9ea5c JS |
2532 | spin_lock_irq(shost->host_lock); |
2533 | if (ndlp->nlp_flag & NLP_LOGO_SND) { | |
2534 | spin_unlock_irq(shost->host_lock); | |
2535 | return 0; | |
2536 | } | |
2537 | spin_unlock_irq(shost->host_lock); | |
2538 | ||
92d7f7b0 | 2539 | cmdsize = (2 * sizeof(uint32_t)) + sizeof(struct lpfc_name); |
2e0fef85 JS |
2540 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
2541 | ndlp->nlp_DID, ELS_CMD_LOGO); | |
488d1469 | 2542 | if (!elsiocb) |
c9f8735b | 2543 | return 1; |
dea3101e JB |
2544 | |
2545 | icmd = &elsiocb->iocb; | |
2546 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
2547 | *((uint32_t *) (pcmd)) = ELS_CMD_LOGO; | |
92d7f7b0 | 2548 | pcmd += sizeof(uint32_t); |
dea3101e JB |
2549 | |
2550 | /* Fill in LOGO payload */ | |
2e0fef85 | 2551 | *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID); |
92d7f7b0 JS |
2552 | pcmd += sizeof(uint32_t); |
2553 | memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name)); | |
dea3101e | 2554 | |
858c9f6c JS |
2555 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2556 | "Issue LOGO: did:x%x", | |
2557 | ndlp->nlp_DID, 0, 0); | |
2558 | ||
086a345f JS |
2559 | /* |
2560 | * If we are issuing a LOGO, we may try to recover the remote NPort | |
2561 | * by issuing a PLOGI later. Even though we issue ELS cmds by the | |
2562 | * VPI, if we have a valid RPI, and that RPI gets unreg'ed while | |
2563 | * that ELS command is in-flight, the HBA returns a IOERR_INVALID_RPI | |
2564 | * for that ELS cmd. To avoid this situation, lets get rid of the | |
2565 | * RPI right now, before any ELS cmds are sent. | |
2566 | */ | |
2567 | spin_lock_irq(shost->host_lock); | |
2568 | ndlp->nlp_flag |= NLP_ISSUE_LOGO; | |
2569 | spin_unlock_irq(shost->host_lock); | |
2570 | if (lpfc_unreg_rpi(vport, ndlp)) { | |
2571 | lpfc_els_free_iocb(phba, elsiocb); | |
2572 | return 0; | |
2573 | } | |
2574 | ||
dea3101e JB |
2575 | phba->fc_stat.elsXmitLOGO++; |
2576 | elsiocb->iocb_cmpl = lpfc_cmpl_els_logo; | |
2e0fef85 | 2577 | spin_lock_irq(shost->host_lock); |
dea3101e | 2578 | ndlp->nlp_flag |= NLP_LOGO_SND; |
086a345f | 2579 | ndlp->nlp_flag &= ~NLP_ISSUE_LOGO; |
2e0fef85 | 2580 | spin_unlock_irq(shost->host_lock); |
3772a991 | 2581 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
92d7f7b0 JS |
2582 | |
2583 | if (rc == IOCB_ERROR) { | |
2e0fef85 | 2584 | spin_lock_irq(shost->host_lock); |
dea3101e | 2585 | ndlp->nlp_flag &= ~NLP_LOGO_SND; |
2e0fef85 | 2586 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2587 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 2588 | return 1; |
dea3101e | 2589 | } |
c9f8735b | 2590 | return 0; |
dea3101e JB |
2591 | } |
2592 | ||
e59058c4 | 2593 | /** |
3621a710 | 2594 | * lpfc_cmpl_els_cmd - Completion callback function for generic els command |
e59058c4 JS |
2595 | * @phba: pointer to lpfc hba data structure. |
2596 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
2597 | * @rspiocb: pointer to lpfc response iocb data structure. | |
2598 | * | |
2599 | * This routine is a generic completion callback function for ELS commands. | |
2600 | * Specifically, it is the callback function which does not need to perform | |
2601 | * any command specific operations. It is currently used by the ELS command | |
2602 | * issuing routines for the ELS State Change Request (SCR), | |
2603 | * lpfc_issue_els_scr(), and the ELS Fibre Channel Address Resolution | |
2604 | * Protocol Response (FARPR) routine, lpfc_issue_els_farpr(). Other than | |
2605 | * certain debug loggings, this callback function simply invokes the | |
2606 | * lpfc_els_chk_latt() routine to check whether link went down during the | |
2607 | * discovery process. | |
2608 | **/ | |
dea3101e | 2609 | static void |
2e0fef85 JS |
2610 | lpfc_cmpl_els_cmd(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
2611 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 2612 | { |
2e0fef85 | 2613 | struct lpfc_vport *vport = cmdiocb->vport; |
dea3101e JB |
2614 | IOCB_t *irsp; |
2615 | ||
2616 | irsp = &rspiocb->iocb; | |
2617 | ||
858c9f6c JS |
2618 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2619 | "ELS cmd cmpl: status:x%x/x%x did:x%x", | |
2620 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
2621 | irsp->un.elsreq64.remoteID); | |
dea3101e | 2622 | /* ELS cmd tag <ulpIoTag> completes */ |
e8b62011 JS |
2623 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
2624 | "0106 ELS cmd tag x%x completes Data: x%x x%x x%x\n", | |
2625 | irsp->ulpIoTag, irsp->ulpStatus, | |
2626 | irsp->un.ulpWord[4], irsp->ulpTimeout); | |
dea3101e | 2627 | /* Check to see if link went down during discovery */ |
2e0fef85 | 2628 | lpfc_els_chk_latt(vport); |
dea3101e JB |
2629 | lpfc_els_free_iocb(phba, cmdiocb); |
2630 | return; | |
2631 | } | |
2632 | ||
e59058c4 | 2633 | /** |
3621a710 | 2634 | * lpfc_issue_els_scr - Issue a scr to an node on a vport |
e59058c4 JS |
2635 | * @vport: pointer to a host virtual N_Port data structure. |
2636 | * @nportid: N_Port identifier to the remote node. | |
2637 | * @retry: number of retries to the command IOCB. | |
2638 | * | |
2639 | * This routine issues a State Change Request (SCR) to a fabric node | |
2640 | * on a @vport. The remote node @nportid is passed into the function. It | |
2641 | * first search the @vport node list to find the matching ndlp. If no such | |
2642 | * ndlp is found, a new ndlp shall be created for this (SCR) purpose. An | |
2643 | * IOCB is allocated, payload prepared, and the lpfc_sli_issue_iocb() | |
2644 | * routine is invoked to send the SCR IOCB. | |
2645 | * | |
2646 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
2647 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
2648 | * will be stored into the context1 field of the IOCB for the completion | |
2649 | * callback function to the SCR ELS command. | |
2650 | * | |
2651 | * Return code | |
2652 | * 0 - Successfully issued scr command | |
2653 | * 1 - Failed to issue scr command | |
2654 | **/ | |
dea3101e | 2655 | int |
2e0fef85 | 2656 | lpfc_issue_els_scr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry) |
dea3101e | 2657 | { |
2e0fef85 | 2658 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
2659 | IOCB_t *icmd; |
2660 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
2661 | struct lpfc_sli *psli; |
2662 | uint8_t *pcmd; | |
2663 | uint16_t cmdsize; | |
2664 | struct lpfc_nodelist *ndlp; | |
2665 | ||
2666 | psli = &phba->sli; | |
92d7f7b0 | 2667 | cmdsize = (sizeof(uint32_t) + sizeof(SCR)); |
dea3101e | 2668 | |
e47c9093 JS |
2669 | ndlp = lpfc_findnode_did(vport, nportid); |
2670 | if (!ndlp) { | |
2671 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
2672 | if (!ndlp) | |
2673 | return 1; | |
2674 | lpfc_nlp_init(vport, ndlp, nportid); | |
2675 | lpfc_enqueue_node(vport, ndlp); | |
2676 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
2677 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
2678 | if (!ndlp) | |
2679 | return 1; | |
2680 | } | |
2e0fef85 JS |
2681 | |
2682 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, | |
2683 | ndlp->nlp_DID, ELS_CMD_SCR); | |
dea3101e | 2684 | |
488d1469 | 2685 | if (!elsiocb) { |
fa4066b6 JS |
2686 | /* This will trigger the release of the node just |
2687 | * allocated | |
2688 | */ | |
329f9bc7 | 2689 | lpfc_nlp_put(ndlp); |
c9f8735b | 2690 | return 1; |
dea3101e JB |
2691 | } |
2692 | ||
2693 | icmd = &elsiocb->iocb; | |
2694 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
2695 | ||
2696 | *((uint32_t *) (pcmd)) = ELS_CMD_SCR; | |
92d7f7b0 | 2697 | pcmd += sizeof(uint32_t); |
dea3101e JB |
2698 | |
2699 | /* For SCR, remainder of payload is SCR parameter page */ | |
92d7f7b0 | 2700 | memset(pcmd, 0, sizeof(SCR)); |
dea3101e JB |
2701 | ((SCR *) pcmd)->Function = SCR_FUNC_FULL; |
2702 | ||
858c9f6c JS |
2703 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2704 | "Issue SCR: did:x%x", | |
2705 | ndlp->nlp_DID, 0, 0); | |
2706 | ||
dea3101e JB |
2707 | phba->fc_stat.elsXmitSCR++; |
2708 | elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd; | |
3772a991 JS |
2709 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
2710 | IOCB_ERROR) { | |
fa4066b6 JS |
2711 | /* The additional lpfc_nlp_put will cause the following |
2712 | * lpfc_els_free_iocb routine to trigger the rlease of | |
2713 | * the node. | |
2714 | */ | |
329f9bc7 | 2715 | lpfc_nlp_put(ndlp); |
dea3101e | 2716 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 2717 | return 1; |
dea3101e | 2718 | } |
fa4066b6 JS |
2719 | /* This will cause the callback-function lpfc_cmpl_els_cmd to |
2720 | * trigger the release of node. | |
2721 | */ | |
329f9bc7 | 2722 | lpfc_nlp_put(ndlp); |
c9f8735b | 2723 | return 0; |
dea3101e JB |
2724 | } |
2725 | ||
e59058c4 | 2726 | /** |
3621a710 | 2727 | * lpfc_issue_els_farpr - Issue a farp to an node on a vport |
e59058c4 JS |
2728 | * @vport: pointer to a host virtual N_Port data structure. |
2729 | * @nportid: N_Port identifier to the remote node. | |
2730 | * @retry: number of retries to the command IOCB. | |
2731 | * | |
2732 | * This routine issues a Fibre Channel Address Resolution Response | |
2733 | * (FARPR) to a node on a vport. The remote node N_Port identifier (@nportid) | |
2734 | * is passed into the function. It first search the @vport node list to find | |
2735 | * the matching ndlp. If no such ndlp is found, a new ndlp shall be created | |
2736 | * for this (FARPR) purpose. An IOCB is allocated, payload prepared, and the | |
2737 | * lpfc_sli_issue_iocb() routine is invoked to send the FARPR ELS command. | |
2738 | * | |
2739 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
2740 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
2741 | * will be stored into the context1 field of the IOCB for the completion | |
2742 | * callback function to the PARPR ELS command. | |
2743 | * | |
2744 | * Return code | |
2745 | * 0 - Successfully issued farpr command | |
2746 | * 1 - Failed to issue farpr command | |
2747 | **/ | |
dea3101e | 2748 | static int |
2e0fef85 | 2749 | lpfc_issue_els_farpr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry) |
dea3101e | 2750 | { |
2e0fef85 | 2751 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
2752 | IOCB_t *icmd; |
2753 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
2754 | struct lpfc_sli *psli; |
2755 | FARP *fp; | |
2756 | uint8_t *pcmd; | |
2757 | uint32_t *lp; | |
2758 | uint16_t cmdsize; | |
2759 | struct lpfc_nodelist *ondlp; | |
2760 | struct lpfc_nodelist *ndlp; | |
2761 | ||
2762 | psli = &phba->sli; | |
92d7f7b0 | 2763 | cmdsize = (sizeof(uint32_t) + sizeof(FARP)); |
dea3101e | 2764 | |
e47c9093 JS |
2765 | ndlp = lpfc_findnode_did(vport, nportid); |
2766 | if (!ndlp) { | |
2767 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
2768 | if (!ndlp) | |
2769 | return 1; | |
2770 | lpfc_nlp_init(vport, ndlp, nportid); | |
2771 | lpfc_enqueue_node(vport, ndlp); | |
2772 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
2773 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
2774 | if (!ndlp) | |
2775 | return 1; | |
2776 | } | |
2e0fef85 JS |
2777 | |
2778 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, | |
2779 | ndlp->nlp_DID, ELS_CMD_RNID); | |
488d1469 | 2780 | if (!elsiocb) { |
fa4066b6 JS |
2781 | /* This will trigger the release of the node just |
2782 | * allocated | |
2783 | */ | |
329f9bc7 | 2784 | lpfc_nlp_put(ndlp); |
c9f8735b | 2785 | return 1; |
dea3101e JB |
2786 | } |
2787 | ||
2788 | icmd = &elsiocb->iocb; | |
2789 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
2790 | ||
2791 | *((uint32_t *) (pcmd)) = ELS_CMD_FARPR; | |
92d7f7b0 | 2792 | pcmd += sizeof(uint32_t); |
dea3101e JB |
2793 | |
2794 | /* Fill in FARPR payload */ | |
2795 | fp = (FARP *) (pcmd); | |
92d7f7b0 | 2796 | memset(fp, 0, sizeof(FARP)); |
dea3101e JB |
2797 | lp = (uint32_t *) pcmd; |
2798 | *lp++ = be32_to_cpu(nportid); | |
2e0fef85 | 2799 | *lp++ = be32_to_cpu(vport->fc_myDID); |
dea3101e JB |
2800 | fp->Rflags = 0; |
2801 | fp->Mflags = (FARP_MATCH_PORT | FARP_MATCH_NODE); | |
2802 | ||
92d7f7b0 JS |
2803 | memcpy(&fp->RportName, &vport->fc_portname, sizeof(struct lpfc_name)); |
2804 | memcpy(&fp->RnodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
2e0fef85 | 2805 | ondlp = lpfc_findnode_did(vport, nportid); |
e47c9093 | 2806 | if (ondlp && NLP_CHK_NODE_ACT(ondlp)) { |
dea3101e | 2807 | memcpy(&fp->OportName, &ondlp->nlp_portname, |
92d7f7b0 | 2808 | sizeof(struct lpfc_name)); |
dea3101e | 2809 | memcpy(&fp->OnodeName, &ondlp->nlp_nodename, |
92d7f7b0 | 2810 | sizeof(struct lpfc_name)); |
dea3101e JB |
2811 | } |
2812 | ||
858c9f6c JS |
2813 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2814 | "Issue FARPR: did:x%x", | |
2815 | ndlp->nlp_DID, 0, 0); | |
2816 | ||
dea3101e JB |
2817 | phba->fc_stat.elsXmitFARPR++; |
2818 | elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd; | |
3772a991 JS |
2819 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
2820 | IOCB_ERROR) { | |
fa4066b6 JS |
2821 | /* The additional lpfc_nlp_put will cause the following |
2822 | * lpfc_els_free_iocb routine to trigger the release of | |
2823 | * the node. | |
2824 | */ | |
329f9bc7 | 2825 | lpfc_nlp_put(ndlp); |
dea3101e | 2826 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 2827 | return 1; |
dea3101e | 2828 | } |
fa4066b6 JS |
2829 | /* This will cause the callback-function lpfc_cmpl_els_cmd to |
2830 | * trigger the release of the node. | |
2831 | */ | |
329f9bc7 | 2832 | lpfc_nlp_put(ndlp); |
c9f8735b | 2833 | return 0; |
dea3101e JB |
2834 | } |
2835 | ||
e59058c4 | 2836 | /** |
3621a710 | 2837 | * lpfc_cancel_retry_delay_tmo - Cancel the timer with delayed iocb-cmd retry |
e59058c4 JS |
2838 | * @vport: pointer to a host virtual N_Port data structure. |
2839 | * @nlp: pointer to a node-list data structure. | |
2840 | * | |
2841 | * This routine cancels the timer with a delayed IOCB-command retry for | |
2842 | * a @vport's @ndlp. It stops the timer for the delayed function retrial and | |
2843 | * removes the ELS retry event if it presents. In addition, if the | |
2844 | * NLP_NPR_2B_DISC bit is set in the @nlp's nlp_flag bitmap, ADISC IOCB | |
2845 | * commands are sent for the @vport's nodes that require issuing discovery | |
2846 | * ADISC. | |
2847 | **/ | |
fdcebe28 | 2848 | void |
2e0fef85 | 2849 | lpfc_cancel_retry_delay_tmo(struct lpfc_vport *vport, struct lpfc_nodelist *nlp) |
fdcebe28 | 2850 | { |
2e0fef85 | 2851 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
e47c9093 | 2852 | struct lpfc_work_evt *evtp; |
2e0fef85 | 2853 | |
0d2b6b83 JS |
2854 | if (!(nlp->nlp_flag & NLP_DELAY_TMO)) |
2855 | return; | |
2e0fef85 | 2856 | spin_lock_irq(shost->host_lock); |
fdcebe28 | 2857 | nlp->nlp_flag &= ~NLP_DELAY_TMO; |
2e0fef85 | 2858 | spin_unlock_irq(shost->host_lock); |
fdcebe28 JS |
2859 | del_timer_sync(&nlp->nlp_delayfunc); |
2860 | nlp->nlp_last_elscmd = 0; | |
e47c9093 | 2861 | if (!list_empty(&nlp->els_retry_evt.evt_listp)) { |
fdcebe28 | 2862 | list_del_init(&nlp->els_retry_evt.evt_listp); |
e47c9093 JS |
2863 | /* Decrement nlp reference count held for the delayed retry */ |
2864 | evtp = &nlp->els_retry_evt; | |
2865 | lpfc_nlp_put((struct lpfc_nodelist *)evtp->evt_arg1); | |
2866 | } | |
fdcebe28 | 2867 | if (nlp->nlp_flag & NLP_NPR_2B_DISC) { |
2e0fef85 | 2868 | spin_lock_irq(shost->host_lock); |
fdcebe28 | 2869 | nlp->nlp_flag &= ~NLP_NPR_2B_DISC; |
2e0fef85 JS |
2870 | spin_unlock_irq(shost->host_lock); |
2871 | if (vport->num_disc_nodes) { | |
0d2b6b83 JS |
2872 | if (vport->port_state < LPFC_VPORT_READY) { |
2873 | /* Check if there are more ADISCs to be sent */ | |
2874 | lpfc_more_adisc(vport); | |
0d2b6b83 JS |
2875 | } else { |
2876 | /* Check if there are more PLOGIs to be sent */ | |
2877 | lpfc_more_plogi(vport); | |
90160e01 JS |
2878 | if (vport->num_disc_nodes == 0) { |
2879 | spin_lock_irq(shost->host_lock); | |
2880 | vport->fc_flag &= ~FC_NDISC_ACTIVE; | |
2881 | spin_unlock_irq(shost->host_lock); | |
2882 | lpfc_can_disctmo(vport); | |
2883 | lpfc_end_rscn(vport); | |
2884 | } | |
fdcebe28 JS |
2885 | } |
2886 | } | |
2887 | } | |
2888 | return; | |
2889 | } | |
2890 | ||
e59058c4 | 2891 | /** |
3621a710 | 2892 | * lpfc_els_retry_delay - Timer function with a ndlp delayed function timer |
e59058c4 JS |
2893 | * @ptr: holder for the pointer to the timer function associated data (ndlp). |
2894 | * | |
2895 | * This routine is invoked by the ndlp delayed-function timer to check | |
2896 | * whether there is any pending ELS retry event(s) with the node. If not, it | |
2897 | * simply returns. Otherwise, if there is at least one ELS delayed event, it | |
2898 | * adds the delayed events to the HBA work list and invokes the | |
2899 | * lpfc_worker_wake_up() routine to wake up worker thread to process the | |
2900 | * event. Note that lpfc_nlp_get() is called before posting the event to | |
2901 | * the work list to hold reference count of ndlp so that it guarantees the | |
2902 | * reference to ndlp will still be available when the worker thread gets | |
2903 | * to the event associated with the ndlp. | |
2904 | **/ | |
dea3101e JB |
2905 | void |
2906 | lpfc_els_retry_delay(unsigned long ptr) | |
2907 | { | |
2e0fef85 JS |
2908 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) ptr; |
2909 | struct lpfc_vport *vport = ndlp->vport; | |
2e0fef85 | 2910 | struct lpfc_hba *phba = vport->phba; |
92d7f7b0 | 2911 | unsigned long flags; |
2e0fef85 | 2912 | struct lpfc_work_evt *evtp = &ndlp->els_retry_evt; |
dea3101e | 2913 | |
92d7f7b0 | 2914 | spin_lock_irqsave(&phba->hbalock, flags); |
dea3101e | 2915 | if (!list_empty(&evtp->evt_listp)) { |
92d7f7b0 | 2916 | spin_unlock_irqrestore(&phba->hbalock, flags); |
dea3101e JB |
2917 | return; |
2918 | } | |
2919 | ||
fa4066b6 JS |
2920 | /* We need to hold the node by incrementing the reference |
2921 | * count until the queued work is done | |
2922 | */ | |
2923 | evtp->evt_arg1 = lpfc_nlp_get(ndlp); | |
5e9d9b82 JS |
2924 | if (evtp->evt_arg1) { |
2925 | evtp->evt = LPFC_EVT_ELS_RETRY; | |
2926 | list_add_tail(&evtp->evt_listp, &phba->work_list); | |
92d7f7b0 | 2927 | lpfc_worker_wake_up(phba); |
5e9d9b82 | 2928 | } |
92d7f7b0 | 2929 | spin_unlock_irqrestore(&phba->hbalock, flags); |
dea3101e JB |
2930 | return; |
2931 | } | |
2932 | ||
e59058c4 | 2933 | /** |
3621a710 | 2934 | * lpfc_els_retry_delay_handler - Work thread handler for ndlp delayed function |
e59058c4 JS |
2935 | * @ndlp: pointer to a node-list data structure. |
2936 | * | |
2937 | * This routine is the worker-thread handler for processing the @ndlp delayed | |
2938 | * event(s), posted by the lpfc_els_retry_delay() routine. It simply retrieves | |
2939 | * the last ELS command from the associated ndlp and invokes the proper ELS | |
2940 | * function according to the delayed ELS command to retry the command. | |
2941 | **/ | |
dea3101e JB |
2942 | void |
2943 | lpfc_els_retry_delay_handler(struct lpfc_nodelist *ndlp) | |
2944 | { | |
2e0fef85 JS |
2945 | struct lpfc_vport *vport = ndlp->vport; |
2946 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
2947 | uint32_t cmd, did, retry; | |
dea3101e | 2948 | |
2e0fef85 | 2949 | spin_lock_irq(shost->host_lock); |
5024ab17 JW |
2950 | did = ndlp->nlp_DID; |
2951 | cmd = ndlp->nlp_last_elscmd; | |
2952 | ndlp->nlp_last_elscmd = 0; | |
dea3101e JB |
2953 | |
2954 | if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { | |
2e0fef85 | 2955 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
2956 | return; |
2957 | } | |
2958 | ||
2959 | ndlp->nlp_flag &= ~NLP_DELAY_TMO; | |
2e0fef85 | 2960 | spin_unlock_irq(shost->host_lock); |
1a169689 JS |
2961 | /* |
2962 | * If a discovery event readded nlp_delayfunc after timer | |
2963 | * firing and before processing the timer, cancel the | |
2964 | * nlp_delayfunc. | |
2965 | */ | |
2966 | del_timer_sync(&ndlp->nlp_delayfunc); | |
dea3101e | 2967 | retry = ndlp->nlp_retry; |
4d9ab994 | 2968 | ndlp->nlp_retry = 0; |
dea3101e JB |
2969 | |
2970 | switch (cmd) { | |
2971 | case ELS_CMD_FLOGI: | |
2e0fef85 | 2972 | lpfc_issue_els_flogi(vport, ndlp, retry); |
dea3101e JB |
2973 | break; |
2974 | case ELS_CMD_PLOGI: | |
2e0fef85 | 2975 | if (!lpfc_issue_els_plogi(vport, ndlp->nlp_DID, retry)) { |
5024ab17 | 2976 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 2977 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); |
6ad42535 | 2978 | } |
dea3101e JB |
2979 | break; |
2980 | case ELS_CMD_ADISC: | |
2e0fef85 | 2981 | if (!lpfc_issue_els_adisc(vport, ndlp, retry)) { |
5024ab17 | 2982 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 2983 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); |
6ad42535 | 2984 | } |
dea3101e JB |
2985 | break; |
2986 | case ELS_CMD_PRLI: | |
2e0fef85 | 2987 | if (!lpfc_issue_els_prli(vport, ndlp, retry)) { |
5024ab17 | 2988 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 2989 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); |
6ad42535 | 2990 | } |
dea3101e JB |
2991 | break; |
2992 | case ELS_CMD_LOGO: | |
2e0fef85 | 2993 | if (!lpfc_issue_els_logo(vport, ndlp, retry)) { |
5024ab17 | 2994 | ndlp->nlp_prev_state = ndlp->nlp_state; |
086a345f | 2995 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE); |
6ad42535 | 2996 | } |
dea3101e | 2997 | break; |
92d7f7b0 | 2998 | case ELS_CMD_FDISC: |
fedd3b7b JS |
2999 | if (!(vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI)) |
3000 | lpfc_issue_els_fdisc(vport, ndlp, retry); | |
92d7f7b0 | 3001 | break; |
dea3101e JB |
3002 | } |
3003 | return; | |
3004 | } | |
3005 | ||
e59058c4 | 3006 | /** |
3621a710 | 3007 | * lpfc_els_retry - Make retry decision on an els command iocb |
e59058c4 JS |
3008 | * @phba: pointer to lpfc hba data structure. |
3009 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
3010 | * @rspiocb: pointer to lpfc response iocb data structure. | |
3011 | * | |
3012 | * This routine makes a retry decision on an ELS command IOCB, which has | |
3013 | * failed. The following ELS IOCBs use this function for retrying the command | |
3014 | * when previously issued command responsed with error status: FLOGI, PLOGI, | |
3015 | * PRLI, ADISC, LOGO, and FDISC. Based on the ELS command type and the | |
3016 | * returned error status, it makes the decision whether a retry shall be | |
3017 | * issued for the command, and whether a retry shall be made immediately or | |
3018 | * delayed. In the former case, the corresponding ELS command issuing-function | |
3019 | * is called to retry the command. In the later case, the ELS command shall | |
3020 | * be posted to the ndlp delayed event and delayed function timer set to the | |
3021 | * ndlp for the delayed command issusing. | |
3022 | * | |
3023 | * Return code | |
3024 | * 0 - No retry of els command is made | |
3025 | * 1 - Immediate or delayed retry of els command is made | |
3026 | **/ | |
dea3101e | 3027 | static int |
2e0fef85 JS |
3028 | lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
3029 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 3030 | { |
2e0fef85 JS |
3031 | struct lpfc_vport *vport = cmdiocb->vport; |
3032 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
3033 | IOCB_t *irsp = &rspiocb->iocb; | |
3034 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
3035 | struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
dea3101e JB |
3036 | uint32_t *elscmd; |
3037 | struct ls_rjt stat; | |
2e0fef85 | 3038 | int retry = 0, maxretry = lpfc_max_els_tries, delay = 0; |
98c9ea5c | 3039 | int logerr = 0; |
2e0fef85 | 3040 | uint32_t cmd = 0; |
488d1469 | 3041 | uint32_t did; |
dea3101e | 3042 | |
488d1469 | 3043 | |
dea3101e JB |
3044 | /* Note: context2 may be 0 for internal driver abort |
3045 | * of delays ELS command. | |
3046 | */ | |
3047 | ||
3048 | if (pcmd && pcmd->virt) { | |
3049 | elscmd = (uint32_t *) (pcmd->virt); | |
3050 | cmd = *elscmd++; | |
3051 | } | |
3052 | ||
e47c9093 | 3053 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) |
488d1469 JS |
3054 | did = ndlp->nlp_DID; |
3055 | else { | |
3056 | /* We should only hit this case for retrying PLOGI */ | |
3057 | did = irsp->un.elsreq64.remoteID; | |
2e0fef85 | 3058 | ndlp = lpfc_findnode_did(vport, did); |
e47c9093 JS |
3059 | if ((!ndlp || !NLP_CHK_NODE_ACT(ndlp)) |
3060 | && (cmd != ELS_CMD_PLOGI)) | |
488d1469 JS |
3061 | return 1; |
3062 | } | |
3063 | ||
858c9f6c JS |
3064 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
3065 | "Retry ELS: wd7:x%x wd4:x%x did:x%x", | |
3066 | *(((uint32_t *) irsp) + 7), irsp->un.ulpWord[4], ndlp->nlp_DID); | |
3067 | ||
dea3101e JB |
3068 | switch (irsp->ulpStatus) { |
3069 | case IOSTAT_FCP_RSP_ERROR: | |
1151e3ec | 3070 | break; |
dea3101e | 3071 | case IOSTAT_REMOTE_STOP: |
1151e3ec JS |
3072 | if (phba->sli_rev == LPFC_SLI_REV4) { |
3073 | /* This IO was aborted by the target, we don't | |
3074 | * know the rxid and because we did not send the | |
3075 | * ABTS we cannot generate and RRQ. | |
3076 | */ | |
3077 | lpfc_set_rrq_active(phba, ndlp, | |
ee0f4fe1 | 3078 | cmdiocb->sli4_lxritag, 0, 0); |
1151e3ec | 3079 | } |
dea3101e | 3080 | break; |
dea3101e | 3081 | case IOSTAT_LOCAL_REJECT: |
e3d2b802 | 3082 | switch ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK)) { |
dea3101e | 3083 | case IOERR_LOOP_OPEN_FAILURE: |
eaf15d5b JS |
3084 | if (cmd == ELS_CMD_FLOGI) { |
3085 | if (PCI_DEVICE_ID_HORNET == | |
3086 | phba->pcidev->device) { | |
76a95d75 | 3087 | phba->fc_topology = LPFC_TOPOLOGY_LOOP; |
eaf15d5b JS |
3088 | phba->pport->fc_myDID = 0; |
3089 | phba->alpa_map[0] = 0; | |
3090 | phba->alpa_map[1] = 0; | |
3091 | } | |
3092 | } | |
2e0fef85 | 3093 | if (cmd == ELS_CMD_PLOGI && cmdiocb->retry == 0) |
92d7f7b0 | 3094 | delay = 1000; |
dea3101e JB |
3095 | retry = 1; |
3096 | break; | |
3097 | ||
92d7f7b0 | 3098 | case IOERR_ILLEGAL_COMMAND: |
7f5f3d0d JS |
3099 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
3100 | "0124 Retry illegal cmd x%x " | |
3101 | "retry:x%x delay:x%x\n", | |
3102 | cmd, cmdiocb->retry, delay); | |
3103 | retry = 1; | |
3104 | /* All command's retry policy */ | |
3105 | maxretry = 8; | |
3106 | if (cmdiocb->retry > 2) | |
3107 | delay = 1000; | |
92d7f7b0 JS |
3108 | break; |
3109 | ||
dea3101e | 3110 | case IOERR_NO_RESOURCES: |
98c9ea5c | 3111 | logerr = 1; /* HBA out of resources */ |
858c9f6c JS |
3112 | retry = 1; |
3113 | if (cmdiocb->retry > 100) | |
3114 | delay = 100; | |
3115 | maxretry = 250; | |
3116 | break; | |
3117 | ||
3118 | case IOERR_ILLEGAL_FRAME: | |
92d7f7b0 | 3119 | delay = 100; |
dea3101e JB |
3120 | retry = 1; |
3121 | break; | |
3122 | ||
858c9f6c | 3123 | case IOERR_SEQUENCE_TIMEOUT: |
dea3101e JB |
3124 | case IOERR_INVALID_RPI: |
3125 | retry = 1; | |
3126 | break; | |
3127 | } | |
3128 | break; | |
3129 | ||
3130 | case IOSTAT_NPORT_RJT: | |
3131 | case IOSTAT_FABRIC_RJT: | |
3132 | if (irsp->un.ulpWord[4] & RJT_UNAVAIL_TEMP) { | |
3133 | retry = 1; | |
3134 | break; | |
3135 | } | |
3136 | break; | |
3137 | ||
3138 | case IOSTAT_NPORT_BSY: | |
3139 | case IOSTAT_FABRIC_BSY: | |
98c9ea5c | 3140 | logerr = 1; /* Fabric / Remote NPort out of resources */ |
dea3101e JB |
3141 | retry = 1; |
3142 | break; | |
3143 | ||
3144 | case IOSTAT_LS_RJT: | |
3145 | stat.un.lsRjtError = be32_to_cpu(irsp->un.ulpWord[4]); | |
3146 | /* Added for Vendor specifc support | |
3147 | * Just keep retrying for these Rsn / Exp codes | |
3148 | */ | |
3149 | switch (stat.un.b.lsRjtRsnCode) { | |
3150 | case LSRJT_UNABLE_TPC: | |
3151 | if (stat.un.b.lsRjtRsnCodeExp == | |
3152 | LSEXP_CMD_IN_PROGRESS) { | |
3153 | if (cmd == ELS_CMD_PLOGI) { | |
92d7f7b0 | 3154 | delay = 1000; |
dea3101e JB |
3155 | maxretry = 48; |
3156 | } | |
3157 | retry = 1; | |
3158 | break; | |
3159 | } | |
ffc95493 JS |
3160 | if (stat.un.b.lsRjtRsnCodeExp == |
3161 | LSEXP_CANT_GIVE_DATA) { | |
3162 | if (cmd == ELS_CMD_PLOGI) { | |
3163 | delay = 1000; | |
3164 | maxretry = 48; | |
3165 | } | |
3166 | retry = 1; | |
3167 | break; | |
3168 | } | |
4c1b64ba JS |
3169 | if ((cmd == ELS_CMD_PLOGI) || |
3170 | (cmd == ELS_CMD_PRLI)) { | |
92d7f7b0 | 3171 | delay = 1000; |
dea3101e JB |
3172 | maxretry = lpfc_max_els_tries + 1; |
3173 | retry = 1; | |
3174 | break; | |
3175 | } | |
92d7f7b0 JS |
3176 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && |
3177 | (cmd == ELS_CMD_FDISC) && | |
3178 | (stat.un.b.lsRjtRsnCodeExp == LSEXP_OUT_OF_RESOURCE)){ | |
e8b62011 JS |
3179 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
3180 | "0125 FDISC Failed (x%x). " | |
3181 | "Fabric out of resources\n", | |
3182 | stat.un.lsRjtError); | |
92d7f7b0 JS |
3183 | lpfc_vport_set_state(vport, |
3184 | FC_VPORT_NO_FABRIC_RSCS); | |
3185 | } | |
dea3101e JB |
3186 | break; |
3187 | ||
3188 | case LSRJT_LOGICAL_BSY: | |
858c9f6c JS |
3189 | if ((cmd == ELS_CMD_PLOGI) || |
3190 | (cmd == ELS_CMD_PRLI)) { | |
92d7f7b0 | 3191 | delay = 1000; |
dea3101e | 3192 | maxretry = 48; |
92d7f7b0 | 3193 | } else if (cmd == ELS_CMD_FDISC) { |
51ef4c26 JS |
3194 | /* FDISC retry policy */ |
3195 | maxretry = 48; | |
3196 | if (cmdiocb->retry >= 32) | |
3197 | delay = 1000; | |
dea3101e JB |
3198 | } |
3199 | retry = 1; | |
3200 | break; | |
92d7f7b0 JS |
3201 | |
3202 | case LSRJT_LOGICAL_ERR: | |
7f5f3d0d JS |
3203 | /* There are some cases where switches return this |
3204 | * error when they are not ready and should be returning | |
3205 | * Logical Busy. We should delay every time. | |
3206 | */ | |
3207 | if (cmd == ELS_CMD_FDISC && | |
3208 | stat.un.b.lsRjtRsnCodeExp == LSEXP_PORT_LOGIN_REQ) { | |
3209 | maxretry = 3; | |
3210 | delay = 1000; | |
3211 | retry = 1; | |
3212 | break; | |
3213 | } | |
92d7f7b0 JS |
3214 | case LSRJT_PROTOCOL_ERR: |
3215 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && | |
3216 | (cmd == ELS_CMD_FDISC) && | |
3217 | ((stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_PNAME) || | |
3218 | (stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_NPORT_ID)) | |
3219 | ) { | |
e8b62011 | 3220 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
d7c255b2 | 3221 | "0122 FDISC Failed (x%x). " |
e8b62011 JS |
3222 | "Fabric Detected Bad WWN\n", |
3223 | stat.un.lsRjtError); | |
92d7f7b0 JS |
3224 | lpfc_vport_set_state(vport, |
3225 | FC_VPORT_FABRIC_REJ_WWN); | |
3226 | } | |
3227 | break; | |
dea3101e JB |
3228 | } |
3229 | break; | |
3230 | ||
3231 | case IOSTAT_INTERMED_RSP: | |
3232 | case IOSTAT_BA_RJT: | |
3233 | break; | |
3234 | ||
3235 | default: | |
3236 | break; | |
3237 | } | |
3238 | ||
488d1469 | 3239 | if (did == FDMI_DID) |
dea3101e | 3240 | retry = 1; |
dea3101e | 3241 | |
df9e1b59 | 3242 | if ((cmd == ELS_CMD_FLOGI) && |
76a95d75 | 3243 | (phba->fc_topology != LPFC_TOPOLOGY_LOOP) && |
1b32f6aa | 3244 | !lpfc_error_lost_link(irsp)) { |
98c9ea5c JS |
3245 | /* FLOGI retry policy */ |
3246 | retry = 1; | |
df9e1b59 | 3247 | /* retry FLOGI forever */ |
6669f9bb JS |
3248 | maxretry = 0; |
3249 | if (cmdiocb->retry >= 100) | |
3250 | delay = 5000; | |
3251 | else if (cmdiocb->retry >= 32) | |
98c9ea5c | 3252 | delay = 1000; |
df9e1b59 JS |
3253 | } else if ((cmd == ELS_CMD_FDISC) && !lpfc_error_lost_link(irsp)) { |
3254 | /* retry FDISCs every second up to devloss */ | |
3255 | retry = 1; | |
3256 | maxretry = vport->cfg_devloss_tmo; | |
3257 | delay = 1000; | |
98c9ea5c JS |
3258 | } |
3259 | ||
6669f9bb JS |
3260 | cmdiocb->retry++; |
3261 | if (maxretry && (cmdiocb->retry >= maxretry)) { | |
dea3101e JB |
3262 | phba->fc_stat.elsRetryExceeded++; |
3263 | retry = 0; | |
3264 | } | |
3265 | ||
ed957684 JS |
3266 | if ((vport->load_flag & FC_UNLOADING) != 0) |
3267 | retry = 0; | |
3268 | ||
dea3101e | 3269 | if (retry) { |
38b92ef8 JS |
3270 | if ((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_FDISC)) { |
3271 | /* Stop retrying PLOGI and FDISC if in FCF discovery */ | |
3272 | if (phba->fcf.fcf_flag & FCF_DISCOVERY) { | |
3273 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
3274 | "2849 Stop retry ELS command " | |
3275 | "x%x to remote NPORT x%x, " | |
3276 | "Data: x%x x%x\n", cmd, did, | |
3277 | cmdiocb->retry, delay); | |
3278 | return 0; | |
3279 | } | |
3280 | } | |
dea3101e JB |
3281 | |
3282 | /* Retry ELS command <elsCmd> to remote NPORT <did> */ | |
e8b62011 JS |
3283 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3284 | "0107 Retry ELS command x%x to remote " | |
3285 | "NPORT x%x Data: x%x x%x\n", | |
3286 | cmd, did, cmdiocb->retry, delay); | |
dea3101e | 3287 | |
858c9f6c JS |
3288 | if (((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_ADISC)) && |
3289 | ((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) || | |
e3d2b802 JS |
3290 | ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) != |
3291 | IOERR_NO_RESOURCES))) { | |
858c9f6c JS |
3292 | /* Don't reset timer for no resources */ |
3293 | ||
dea3101e | 3294 | /* If discovery / RSCN timer is running, reset it */ |
2e0fef85 | 3295 | if (timer_pending(&vport->fc_disctmo) || |
92d7f7b0 | 3296 | (vport->fc_flag & FC_RSCN_MODE)) |
2e0fef85 | 3297 | lpfc_set_disctmo(vport); |
dea3101e JB |
3298 | } |
3299 | ||
3300 | phba->fc_stat.elsXmitRetry++; | |
58da1ffb | 3301 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && delay) { |
dea3101e JB |
3302 | phba->fc_stat.elsDelayRetry++; |
3303 | ndlp->nlp_retry = cmdiocb->retry; | |
3304 | ||
92d7f7b0 JS |
3305 | /* delay is specified in milliseconds */ |
3306 | mod_timer(&ndlp->nlp_delayfunc, | |
3307 | jiffies + msecs_to_jiffies(delay)); | |
2e0fef85 | 3308 | spin_lock_irq(shost->host_lock); |
dea3101e | 3309 | ndlp->nlp_flag |= NLP_DELAY_TMO; |
2e0fef85 | 3310 | spin_unlock_irq(shost->host_lock); |
dea3101e | 3311 | |
5024ab17 | 3312 | ndlp->nlp_prev_state = ndlp->nlp_state; |
858c9f6c JS |
3313 | if (cmd == ELS_CMD_PRLI) |
3314 | lpfc_nlp_set_state(vport, ndlp, | |
4c1b64ba | 3315 | NLP_STE_PRLI_ISSUE); |
858c9f6c JS |
3316 | else |
3317 | lpfc_nlp_set_state(vport, ndlp, | |
3318 | NLP_STE_NPR_NODE); | |
dea3101e JB |
3319 | ndlp->nlp_last_elscmd = cmd; |
3320 | ||
c9f8735b | 3321 | return 1; |
dea3101e JB |
3322 | } |
3323 | switch (cmd) { | |
3324 | case ELS_CMD_FLOGI: | |
2e0fef85 | 3325 | lpfc_issue_els_flogi(vport, ndlp, cmdiocb->retry); |
c9f8735b | 3326 | return 1; |
92d7f7b0 JS |
3327 | case ELS_CMD_FDISC: |
3328 | lpfc_issue_els_fdisc(vport, ndlp, cmdiocb->retry); | |
3329 | return 1; | |
dea3101e | 3330 | case ELS_CMD_PLOGI: |
58da1ffb | 3331 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) { |
488d1469 | 3332 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 3333 | lpfc_nlp_set_state(vport, ndlp, |
de0c5b32 | 3334 | NLP_STE_PLOGI_ISSUE); |
488d1469 | 3335 | } |
2e0fef85 | 3336 | lpfc_issue_els_plogi(vport, did, cmdiocb->retry); |
c9f8735b | 3337 | return 1; |
dea3101e | 3338 | case ELS_CMD_ADISC: |
5024ab17 | 3339 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 JS |
3340 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); |
3341 | lpfc_issue_els_adisc(vport, ndlp, cmdiocb->retry); | |
c9f8735b | 3342 | return 1; |
dea3101e | 3343 | case ELS_CMD_PRLI: |
5024ab17 | 3344 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 JS |
3345 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); |
3346 | lpfc_issue_els_prli(vport, ndlp, cmdiocb->retry); | |
c9f8735b | 3347 | return 1; |
dea3101e | 3348 | case ELS_CMD_LOGO: |
5024ab17 | 3349 | ndlp->nlp_prev_state = ndlp->nlp_state; |
086a345f | 3350 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE); |
2e0fef85 | 3351 | lpfc_issue_els_logo(vport, ndlp, cmdiocb->retry); |
c9f8735b | 3352 | return 1; |
dea3101e JB |
3353 | } |
3354 | } | |
dea3101e | 3355 | /* No retry ELS command <elsCmd> to remote NPORT <did> */ |
98c9ea5c JS |
3356 | if (logerr) { |
3357 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
3358 | "0137 No retry ELS command x%x to remote " | |
3359 | "NPORT x%x: Out of Resources: Error:x%x/%x\n", | |
3360 | cmd, did, irsp->ulpStatus, | |
3361 | irsp->un.ulpWord[4]); | |
3362 | } | |
3363 | else { | |
3364 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
a58cbd52 JS |
3365 | "0108 No retry ELS command x%x to remote " |
3366 | "NPORT x%x Retried:%d Error:x%x/%x\n", | |
3367 | cmd, did, cmdiocb->retry, irsp->ulpStatus, | |
3368 | irsp->un.ulpWord[4]); | |
98c9ea5c | 3369 | } |
c9f8735b | 3370 | return 0; |
dea3101e JB |
3371 | } |
3372 | ||
e59058c4 | 3373 | /** |
3621a710 | 3374 | * lpfc_els_free_data - Free lpfc dma buffer and data structure with an iocb |
e59058c4 JS |
3375 | * @phba: pointer to lpfc hba data structure. |
3376 | * @buf_ptr1: pointer to the lpfc DMA buffer data structure. | |
3377 | * | |
3378 | * This routine releases the lpfc DMA (Direct Memory Access) buffer(s) | |
3379 | * associated with a command IOCB back to the lpfc DMA buffer pool. It first | |
3380 | * checks to see whether there is a lpfc DMA buffer associated with the | |
3381 | * response of the command IOCB. If so, it will be released before releasing | |
3382 | * the lpfc DMA buffer associated with the IOCB itself. | |
3383 | * | |
3384 | * Return code | |
3385 | * 0 - Successfully released lpfc DMA buffer (currently, always return 0) | |
3386 | **/ | |
09372820 | 3387 | static int |
87af33fe JS |
3388 | lpfc_els_free_data(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr1) |
3389 | { | |
3390 | struct lpfc_dmabuf *buf_ptr; | |
3391 | ||
e59058c4 | 3392 | /* Free the response before processing the command. */ |
87af33fe JS |
3393 | if (!list_empty(&buf_ptr1->list)) { |
3394 | list_remove_head(&buf_ptr1->list, buf_ptr, | |
3395 | struct lpfc_dmabuf, | |
3396 | list); | |
3397 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); | |
3398 | kfree(buf_ptr); | |
3399 | } | |
3400 | lpfc_mbuf_free(phba, buf_ptr1->virt, buf_ptr1->phys); | |
3401 | kfree(buf_ptr1); | |
3402 | return 0; | |
3403 | } | |
3404 | ||
e59058c4 | 3405 | /** |
3621a710 | 3406 | * lpfc_els_free_bpl - Free lpfc dma buffer and data structure with bpl |
e59058c4 JS |
3407 | * @phba: pointer to lpfc hba data structure. |
3408 | * @buf_ptr: pointer to the lpfc dma buffer data structure. | |
3409 | * | |
3410 | * This routine releases the lpfc Direct Memory Access (DMA) buffer | |
3411 | * associated with a Buffer Pointer List (BPL) back to the lpfc DMA buffer | |
3412 | * pool. | |
3413 | * | |
3414 | * Return code | |
3415 | * 0 - Successfully released lpfc DMA buffer (currently, always return 0) | |
3416 | **/ | |
09372820 | 3417 | static int |
87af33fe JS |
3418 | lpfc_els_free_bpl(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr) |
3419 | { | |
3420 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); | |
3421 | kfree(buf_ptr); | |
3422 | return 0; | |
3423 | } | |
3424 | ||
e59058c4 | 3425 | /** |
3621a710 | 3426 | * lpfc_els_free_iocb - Free a command iocb and its associated resources |
e59058c4 JS |
3427 | * @phba: pointer to lpfc hba data structure. |
3428 | * @elsiocb: pointer to lpfc els command iocb data structure. | |
3429 | * | |
3430 | * This routine frees a command IOCB and its associated resources. The | |
3431 | * command IOCB data structure contains the reference to various associated | |
3432 | * resources, these fields must be set to NULL if the associated reference | |
3433 | * not present: | |
3434 | * context1 - reference to ndlp | |
3435 | * context2 - reference to cmd | |
3436 | * context2->next - reference to rsp | |
3437 | * context3 - reference to bpl | |
3438 | * | |
3439 | * It first properly decrements the reference count held on ndlp for the | |
3440 | * IOCB completion callback function. If LPFC_DELAY_MEM_FREE flag is not | |
3441 | * set, it invokes the lpfc_els_free_data() routine to release the Direct | |
3442 | * Memory Access (DMA) buffers associated with the IOCB. Otherwise, it | |
3443 | * adds the DMA buffer the @phba data structure for the delayed release. | |
3444 | * If reference to the Buffer Pointer List (BPL) is present, the | |
3445 | * lpfc_els_free_bpl() routine is invoked to release the DMA memory | |
3446 | * associated with BPL. Finally, the lpfc_sli_release_iocbq() routine is | |
3447 | * invoked to release the IOCB data structure back to @phba IOCBQ list. | |
3448 | * | |
3449 | * Return code | |
3450 | * 0 - Success (currently, always return 0) | |
3451 | **/ | |
dea3101e | 3452 | int |
329f9bc7 | 3453 | lpfc_els_free_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *elsiocb) |
dea3101e JB |
3454 | { |
3455 | struct lpfc_dmabuf *buf_ptr, *buf_ptr1; | |
a8adb832 JS |
3456 | struct lpfc_nodelist *ndlp; |
3457 | ||
3458 | ndlp = (struct lpfc_nodelist *)elsiocb->context1; | |
3459 | if (ndlp) { | |
3460 | if (ndlp->nlp_flag & NLP_DEFER_RM) { | |
3461 | lpfc_nlp_put(ndlp); | |
dea3101e | 3462 | |
a8adb832 JS |
3463 | /* If the ndlp is not being used by another discovery |
3464 | * thread, free it. | |
3465 | */ | |
3466 | if (!lpfc_nlp_not_used(ndlp)) { | |
3467 | /* If ndlp is being used by another discovery | |
3468 | * thread, just clear NLP_DEFER_RM | |
3469 | */ | |
3470 | ndlp->nlp_flag &= ~NLP_DEFER_RM; | |
3471 | } | |
3472 | } | |
3473 | else | |
3474 | lpfc_nlp_put(ndlp); | |
329f9bc7 JS |
3475 | elsiocb->context1 = NULL; |
3476 | } | |
dea3101e JB |
3477 | /* context2 = cmd, context2->next = rsp, context3 = bpl */ |
3478 | if (elsiocb->context2) { | |
0ff10d46 JS |
3479 | if (elsiocb->iocb_flag & LPFC_DELAY_MEM_FREE) { |
3480 | /* Firmware could still be in progress of DMAing | |
3481 | * payload, so don't free data buffer till after | |
3482 | * a hbeat. | |
3483 | */ | |
3484 | elsiocb->iocb_flag &= ~LPFC_DELAY_MEM_FREE; | |
3485 | buf_ptr = elsiocb->context2; | |
3486 | elsiocb->context2 = NULL; | |
3487 | if (buf_ptr) { | |
3488 | buf_ptr1 = NULL; | |
3489 | spin_lock_irq(&phba->hbalock); | |
3490 | if (!list_empty(&buf_ptr->list)) { | |
3491 | list_remove_head(&buf_ptr->list, | |
3492 | buf_ptr1, struct lpfc_dmabuf, | |
3493 | list); | |
3494 | INIT_LIST_HEAD(&buf_ptr1->list); | |
3495 | list_add_tail(&buf_ptr1->list, | |
3496 | &phba->elsbuf); | |
3497 | phba->elsbuf_cnt++; | |
3498 | } | |
3499 | INIT_LIST_HEAD(&buf_ptr->list); | |
3500 | list_add_tail(&buf_ptr->list, &phba->elsbuf); | |
3501 | phba->elsbuf_cnt++; | |
3502 | spin_unlock_irq(&phba->hbalock); | |
3503 | } | |
3504 | } else { | |
3505 | buf_ptr1 = (struct lpfc_dmabuf *) elsiocb->context2; | |
3506 | lpfc_els_free_data(phba, buf_ptr1); | |
3507 | } | |
dea3101e JB |
3508 | } |
3509 | ||
3510 | if (elsiocb->context3) { | |
3511 | buf_ptr = (struct lpfc_dmabuf *) elsiocb->context3; | |
87af33fe | 3512 | lpfc_els_free_bpl(phba, buf_ptr); |
dea3101e | 3513 | } |
604a3e30 | 3514 | lpfc_sli_release_iocbq(phba, elsiocb); |
dea3101e JB |
3515 | return 0; |
3516 | } | |
3517 | ||
e59058c4 | 3518 | /** |
3621a710 | 3519 | * lpfc_cmpl_els_logo_acc - Completion callback function to logo acc response |
e59058c4 JS |
3520 | * @phba: pointer to lpfc hba data structure. |
3521 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
3522 | * @rspiocb: pointer to lpfc response iocb data structure. | |
3523 | * | |
3524 | * This routine is the completion callback function to the Logout (LOGO) | |
3525 | * Accept (ACC) Response ELS command. This routine is invoked to indicate | |
3526 | * the completion of the LOGO process. It invokes the lpfc_nlp_not_used() to | |
3527 | * release the ndlp if it has the last reference remaining (reference count | |
3528 | * is 1). If succeeded (meaning ndlp released), it sets the IOCB context1 | |
3529 | * field to NULL to inform the following lpfc_els_free_iocb() routine no | |
3530 | * ndlp reference count needs to be decremented. Otherwise, the ndlp | |
3531 | * reference use-count shall be decremented by the lpfc_els_free_iocb() | |
3532 | * routine. Finally, the lpfc_els_free_iocb() is invoked to release the | |
3533 | * IOCB data structure. | |
3534 | **/ | |
dea3101e | 3535 | static void |
2e0fef85 JS |
3536 | lpfc_cmpl_els_logo_acc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
3537 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 3538 | { |
2e0fef85 JS |
3539 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; |
3540 | struct lpfc_vport *vport = cmdiocb->vport; | |
858c9f6c JS |
3541 | IOCB_t *irsp; |
3542 | ||
3543 | irsp = &rspiocb->iocb; | |
3544 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
3545 | "ACC LOGO cmpl: status:x%x/x%x did:x%x", | |
3546 | irsp->ulpStatus, irsp->un.ulpWord[4], ndlp->nlp_DID); | |
dea3101e | 3547 | /* ACC to LOGO completes to NPort <nlp_DID> */ |
e8b62011 JS |
3548 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3549 | "0109 ACC to LOGO completes to NPort x%x " | |
3550 | "Data: x%x x%x x%x\n", | |
3551 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3552 | ndlp->nlp_rpi); | |
87af33fe JS |
3553 | |
3554 | if (ndlp->nlp_state == NLP_STE_NPR_NODE) { | |
3555 | /* NPort Recovery mode or node is just allocated */ | |
3556 | if (!lpfc_nlp_not_used(ndlp)) { | |
3557 | /* If the ndlp is being used by another discovery | |
3558 | * thread, just unregister the RPI. | |
3559 | */ | |
3560 | lpfc_unreg_rpi(vport, ndlp); | |
fa4066b6 JS |
3561 | } else { |
3562 | /* Indicate the node has already released, should | |
3563 | * not reference to it from within lpfc_els_free_iocb. | |
3564 | */ | |
3565 | cmdiocb->context1 = NULL; | |
87af33fe | 3566 | } |
dea3101e | 3567 | } |
73d91e50 JS |
3568 | |
3569 | /* | |
3570 | * The driver received a LOGO from the rport and has ACK'd it. | |
df9e1b59 | 3571 | * At this point, the driver is done so release the IOCB |
73d91e50 | 3572 | */ |
dea3101e | 3573 | lpfc_els_free_iocb(phba, cmdiocb); |
df9e1b59 JS |
3574 | |
3575 | /* | |
3576 | * Remove the ndlp reference if it's a fabric node that has | |
3577 | * sent us an unsolicted LOGO. | |
3578 | */ | |
3579 | if (ndlp->nlp_type & NLP_FABRIC) | |
3580 | lpfc_nlp_put(ndlp); | |
3581 | ||
dea3101e JB |
3582 | return; |
3583 | } | |
3584 | ||
e59058c4 | 3585 | /** |
3621a710 | 3586 | * lpfc_mbx_cmpl_dflt_rpi - Completion callbk func for unreg dflt rpi mbox cmd |
e59058c4 JS |
3587 | * @phba: pointer to lpfc hba data structure. |
3588 | * @pmb: pointer to the driver internal queue element for mailbox command. | |
3589 | * | |
3590 | * This routine is the completion callback function for unregister default | |
3591 | * RPI (Remote Port Index) mailbox command to the @phba. It simply releases | |
3592 | * the associated lpfc Direct Memory Access (DMA) buffer back to the pool and | |
3593 | * decrements the ndlp reference count held for this completion callback | |
3594 | * function. After that, it invokes the lpfc_nlp_not_used() to check | |
3595 | * whether there is only one reference left on the ndlp. If so, it will | |
3596 | * perform one more decrement and trigger the release of the ndlp. | |
3597 | **/ | |
858c9f6c JS |
3598 | void |
3599 | lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) | |
3600 | { | |
3601 | struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); | |
3602 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; | |
3603 | ||
3604 | pmb->context1 = NULL; | |
d439d286 JS |
3605 | pmb->context2 = NULL; |
3606 | ||
858c9f6c JS |
3607 | lpfc_mbuf_free(phba, mp->virt, mp->phys); |
3608 | kfree(mp); | |
3609 | mempool_free(pmb, phba->mbox_mem_pool); | |
086a345f JS |
3610 | if (ndlp) { |
3611 | if (NLP_CHK_NODE_ACT(ndlp)) { | |
3612 | lpfc_nlp_put(ndlp); | |
3613 | /* This is the end of the default RPI cleanup logic for | |
3614 | * this ndlp. If no other discovery threads are using | |
3615 | * this ndlp, free all resources associated with it. | |
3616 | */ | |
3617 | lpfc_nlp_not_used(ndlp); | |
3618 | } else { | |
3619 | lpfc_drop_node(ndlp->vport, ndlp); | |
3620 | } | |
a8adb832 | 3621 | } |
3772a991 | 3622 | |
858c9f6c JS |
3623 | return; |
3624 | } | |
3625 | ||
e59058c4 | 3626 | /** |
3621a710 | 3627 | * lpfc_cmpl_els_rsp - Completion callback function for els response iocb cmd |
e59058c4 JS |
3628 | * @phba: pointer to lpfc hba data structure. |
3629 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
3630 | * @rspiocb: pointer to lpfc response iocb data structure. | |
3631 | * | |
3632 | * This routine is the completion callback function for ELS Response IOCB | |
3633 | * command. In normal case, this callback function just properly sets the | |
3634 | * nlp_flag bitmap in the ndlp data structure, if the mbox command reference | |
3635 | * field in the command IOCB is not NULL, the referred mailbox command will | |
3636 | * be send out, and then invokes the lpfc_els_free_iocb() routine to release | |
3637 | * the IOCB. Under error conditions, such as when a LS_RJT is returned or a | |
3638 | * link down event occurred during the discovery, the lpfc_nlp_not_used() | |
3639 | * routine shall be invoked trying to release the ndlp if no other threads | |
3640 | * are currently referring it. | |
3641 | **/ | |
dea3101e | 3642 | static void |
858c9f6c | 3643 | lpfc_cmpl_els_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
329f9bc7 | 3644 | struct lpfc_iocbq *rspiocb) |
dea3101e | 3645 | { |
2e0fef85 JS |
3646 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; |
3647 | struct lpfc_vport *vport = ndlp ? ndlp->vport : NULL; | |
3648 | struct Scsi_Host *shost = vport ? lpfc_shost_from_vport(vport) : NULL; | |
87af33fe JS |
3649 | IOCB_t *irsp; |
3650 | uint8_t *pcmd; | |
dea3101e | 3651 | LPFC_MBOXQ_t *mbox = NULL; |
2e0fef85 | 3652 | struct lpfc_dmabuf *mp = NULL; |
87af33fe | 3653 | uint32_t ls_rjt = 0; |
dea3101e | 3654 | |
33ccf8d1 JS |
3655 | irsp = &rspiocb->iocb; |
3656 | ||
dea3101e JB |
3657 | if (cmdiocb->context_un.mbox) |
3658 | mbox = cmdiocb->context_un.mbox; | |
3659 | ||
fa4066b6 JS |
3660 | /* First determine if this is a LS_RJT cmpl. Note, this callback |
3661 | * function can have cmdiocb->contest1 (ndlp) field set to NULL. | |
3662 | */ | |
87af33fe | 3663 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt); |
58da1ffb JS |
3664 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && |
3665 | (*((uint32_t *) (pcmd)) == ELS_CMD_LS_RJT)) { | |
fa4066b6 | 3666 | /* A LS_RJT associated with Default RPI cleanup has its own |
3ad2f3fb | 3667 | * separate code path. |
87af33fe JS |
3668 | */ |
3669 | if (!(ndlp->nlp_flag & NLP_RM_DFLT_RPI)) | |
3670 | ls_rjt = 1; | |
3671 | } | |
3672 | ||
dea3101e | 3673 | /* Check to see if link went down during discovery */ |
58da1ffb | 3674 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || lpfc_els_chk_latt(vport)) { |
dea3101e | 3675 | if (mbox) { |
14691150 JS |
3676 | mp = (struct lpfc_dmabuf *) mbox->context1; |
3677 | if (mp) { | |
3678 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
3679 | kfree(mp); | |
3680 | } | |
329f9bc7 | 3681 | mempool_free(mbox, phba->mbox_mem_pool); |
dea3101e | 3682 | } |
58da1ffb JS |
3683 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && |
3684 | (ndlp->nlp_flag & NLP_RM_DFLT_RPI)) | |
fa4066b6 | 3685 | if (lpfc_nlp_not_used(ndlp)) { |
98c9ea5c | 3686 | ndlp = NULL; |
fa4066b6 JS |
3687 | /* Indicate the node has already released, |
3688 | * should not reference to it from within | |
3689 | * the routine lpfc_els_free_iocb. | |
3690 | */ | |
3691 | cmdiocb->context1 = NULL; | |
3692 | } | |
dea3101e JB |
3693 | goto out; |
3694 | } | |
3695 | ||
858c9f6c | 3696 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
51ef4c26 | 3697 | "ELS rsp cmpl: status:x%x/x%x did:x%x", |
858c9f6c | 3698 | irsp->ulpStatus, irsp->un.ulpWord[4], |
51ef4c26 | 3699 | cmdiocb->iocb.un.elsreq64.remoteID); |
dea3101e | 3700 | /* ELS response tag <ulpIoTag> completes */ |
e8b62011 JS |
3701 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3702 | "0110 ELS response tag x%x completes " | |
3703 | "Data: x%x x%x x%x x%x x%x x%x x%x\n", | |
3704 | cmdiocb->iocb.ulpIoTag, rspiocb->iocb.ulpStatus, | |
3705 | rspiocb->iocb.un.ulpWord[4], rspiocb->iocb.ulpTimeout, | |
3706 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3707 | ndlp->nlp_rpi); | |
dea3101e JB |
3708 | if (mbox) { |
3709 | if ((rspiocb->iocb.ulpStatus == 0) | |
3710 | && (ndlp->nlp_flag & NLP_ACC_REGLOGIN)) { | |
2e0fef85 | 3711 | lpfc_unreg_rpi(vport, ndlp); |
e47c9093 JS |
3712 | /* Increment reference count to ndlp to hold the |
3713 | * reference to ndlp for the callback function. | |
3714 | */ | |
329f9bc7 | 3715 | mbox->context2 = lpfc_nlp_get(ndlp); |
2e0fef85 | 3716 | mbox->vport = vport; |
858c9f6c JS |
3717 | if (ndlp->nlp_flag & NLP_RM_DFLT_RPI) { |
3718 | mbox->mbox_flag |= LPFC_MBX_IMED_UNREG; | |
3719 | mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi; | |
3720 | } | |
3721 | else { | |
3722 | mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; | |
3723 | ndlp->nlp_prev_state = ndlp->nlp_state; | |
3724 | lpfc_nlp_set_state(vport, ndlp, | |
2e0fef85 | 3725 | NLP_STE_REG_LOGIN_ISSUE); |
858c9f6c | 3726 | } |
0b727fea | 3727 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) |
e47c9093 | 3728 | != MBX_NOT_FINISHED) |
dea3101e | 3729 | goto out; |
e47c9093 JS |
3730 | else |
3731 | /* Decrement the ndlp reference count we | |
3732 | * set for this failed mailbox command. | |
3733 | */ | |
3734 | lpfc_nlp_put(ndlp); | |
98c9ea5c JS |
3735 | |
3736 | /* ELS rsp: Cannot issue reg_login for <NPortid> */ | |
3737 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
3738 | "0138 ELS rsp: Cannot issue reg_login for x%x " | |
3739 | "Data: x%x x%x x%x\n", | |
3740 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3741 | ndlp->nlp_rpi); | |
3742 | ||
fa4066b6 | 3743 | if (lpfc_nlp_not_used(ndlp)) { |
98c9ea5c | 3744 | ndlp = NULL; |
fa4066b6 JS |
3745 | /* Indicate node has already been released, |
3746 | * should not reference to it from within | |
3747 | * the routine lpfc_els_free_iocb. | |
3748 | */ | |
3749 | cmdiocb->context1 = NULL; | |
3750 | } | |
dea3101e | 3751 | } else { |
858c9f6c JS |
3752 | /* Do not drop node for lpfc_els_abort'ed ELS cmds */ |
3753 | if (!lpfc_error_lost_link(irsp) && | |
3754 | ndlp->nlp_flag & NLP_ACC_REGLOGIN) { | |
fa4066b6 | 3755 | if (lpfc_nlp_not_used(ndlp)) { |
98c9ea5c | 3756 | ndlp = NULL; |
fa4066b6 JS |
3757 | /* Indicate node has already been |
3758 | * released, should not reference | |
3759 | * to it from within the routine | |
3760 | * lpfc_els_free_iocb. | |
3761 | */ | |
3762 | cmdiocb->context1 = NULL; | |
3763 | } | |
dea3101e JB |
3764 | } |
3765 | } | |
14691150 JS |
3766 | mp = (struct lpfc_dmabuf *) mbox->context1; |
3767 | if (mp) { | |
3768 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
3769 | kfree(mp); | |
3770 | } | |
3771 | mempool_free(mbox, phba->mbox_mem_pool); | |
dea3101e JB |
3772 | } |
3773 | out: | |
58da1ffb | 3774 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) { |
2e0fef85 | 3775 | spin_lock_irq(shost->host_lock); |
858c9f6c | 3776 | ndlp->nlp_flag &= ~(NLP_ACC_REGLOGIN | NLP_RM_DFLT_RPI); |
2e0fef85 | 3777 | spin_unlock_irq(shost->host_lock); |
87af33fe JS |
3778 | |
3779 | /* If the node is not being used by another discovery thread, | |
3780 | * and we are sending a reject, we are done with it. | |
3781 | * Release driver reference count here and free associated | |
3782 | * resources. | |
3783 | */ | |
3784 | if (ls_rjt) | |
fa4066b6 JS |
3785 | if (lpfc_nlp_not_used(ndlp)) |
3786 | /* Indicate node has already been released, | |
3787 | * should not reference to it from within | |
3788 | * the routine lpfc_els_free_iocb. | |
3789 | */ | |
3790 | cmdiocb->context1 = NULL; | |
dea3101e | 3791 | } |
87af33fe | 3792 | |
dea3101e JB |
3793 | lpfc_els_free_iocb(phba, cmdiocb); |
3794 | return; | |
3795 | } | |
3796 | ||
e59058c4 | 3797 | /** |
3621a710 | 3798 | * lpfc_els_rsp_acc - Prepare and issue an acc response iocb command |
e59058c4 JS |
3799 | * @vport: pointer to a host virtual N_Port data structure. |
3800 | * @flag: the els command code to be accepted. | |
3801 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3802 | * @ndlp: pointer to a node-list data structure. | |
3803 | * @mbox: pointer to the driver internal queue element for mailbox command. | |
3804 | * | |
3805 | * This routine prepares and issues an Accept (ACC) response IOCB | |
3806 | * command. It uses the @flag to properly set up the IOCB field for the | |
3807 | * specific ACC response command to be issued and invokes the | |
3808 | * lpfc_sli_issue_iocb() routine to send out ACC response IOCB. If a | |
3809 | * @mbox pointer is passed in, it will be put into the context_un.mbox | |
3810 | * field of the IOCB for the completion callback function to issue the | |
3811 | * mailbox command to the HBA later when callback is invoked. | |
3812 | * | |
3813 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
3814 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
3815 | * will be stored into the context1 field of the IOCB for the completion | |
3816 | * callback function to the corresponding response ELS IOCB command. | |
3817 | * | |
3818 | * Return code | |
3819 | * 0 - Successfully issued acc response | |
3820 | * 1 - Failed to issue acc response | |
3821 | **/ | |
dea3101e | 3822 | int |
2e0fef85 JS |
3823 | lpfc_els_rsp_acc(struct lpfc_vport *vport, uint32_t flag, |
3824 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp, | |
51ef4c26 | 3825 | LPFC_MBOXQ_t *mbox) |
dea3101e | 3826 | { |
2e0fef85 JS |
3827 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
3828 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
3829 | IOCB_t *icmd; |
3830 | IOCB_t *oldcmd; | |
3831 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
3832 | struct lpfc_sli *psli; |
3833 | uint8_t *pcmd; | |
3834 | uint16_t cmdsize; | |
3835 | int rc; | |
82d9a2a2 | 3836 | ELS_PKT *els_pkt_ptr; |
dea3101e JB |
3837 | |
3838 | psli = &phba->sli; | |
dea3101e JB |
3839 | oldcmd = &oldiocb->iocb; |
3840 | ||
3841 | switch (flag) { | |
3842 | case ELS_CMD_ACC: | |
92d7f7b0 | 3843 | cmdsize = sizeof(uint32_t); |
2e0fef85 JS |
3844 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, |
3845 | ndlp, ndlp->nlp_DID, ELS_CMD_ACC); | |
488d1469 | 3846 | if (!elsiocb) { |
2e0fef85 | 3847 | spin_lock_irq(shost->host_lock); |
5024ab17 | 3848 | ndlp->nlp_flag &= ~NLP_LOGO_ACC; |
2e0fef85 | 3849 | spin_unlock_irq(shost->host_lock); |
c9f8735b | 3850 | return 1; |
dea3101e | 3851 | } |
2e0fef85 | 3852 | |
dea3101e | 3853 | icmd = &elsiocb->iocb; |
7851fe2c JS |
3854 | icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ |
3855 | icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id; | |
dea3101e JB |
3856 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
3857 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 | 3858 | pcmd += sizeof(uint32_t); |
858c9f6c JS |
3859 | |
3860 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
3861 | "Issue ACC: did:x%x flg:x%x", | |
3862 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
dea3101e JB |
3863 | break; |
3864 | case ELS_CMD_PLOGI: | |
92d7f7b0 | 3865 | cmdsize = (sizeof(struct serv_parm) + sizeof(uint32_t)); |
2e0fef85 JS |
3866 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, |
3867 | ndlp, ndlp->nlp_DID, ELS_CMD_ACC); | |
488d1469 | 3868 | if (!elsiocb) |
c9f8735b | 3869 | return 1; |
488d1469 | 3870 | |
dea3101e | 3871 | icmd = &elsiocb->iocb; |
7851fe2c JS |
3872 | icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ |
3873 | icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id; | |
dea3101e JB |
3874 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
3875 | ||
3876 | if (mbox) | |
3877 | elsiocb->context_un.mbox = mbox; | |
3878 | ||
3879 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 JS |
3880 | pcmd += sizeof(uint32_t); |
3881 | memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); | |
858c9f6c JS |
3882 | |
3883 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
3884 | "Issue ACC PLOGI: did:x%x flg:x%x", | |
3885 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
dea3101e | 3886 | break; |
82d9a2a2 | 3887 | case ELS_CMD_PRLO: |
92d7f7b0 | 3888 | cmdsize = sizeof(uint32_t) + sizeof(PRLO); |
2e0fef85 | 3889 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, |
82d9a2a2 JS |
3890 | ndlp, ndlp->nlp_DID, ELS_CMD_PRLO); |
3891 | if (!elsiocb) | |
3892 | return 1; | |
3893 | ||
3894 | icmd = &elsiocb->iocb; | |
7851fe2c JS |
3895 | icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ |
3896 | icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id; | |
82d9a2a2 JS |
3897 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
3898 | ||
3899 | memcpy(pcmd, ((struct lpfc_dmabuf *) oldiocb->context2)->virt, | |
92d7f7b0 | 3900 | sizeof(uint32_t) + sizeof(PRLO)); |
82d9a2a2 JS |
3901 | *((uint32_t *) (pcmd)) = ELS_CMD_PRLO_ACC; |
3902 | els_pkt_ptr = (ELS_PKT *) pcmd; | |
3903 | els_pkt_ptr->un.prlo.acceptRspCode = PRLO_REQ_EXECUTED; | |
858c9f6c JS |
3904 | |
3905 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
3906 | "Issue ACC PRLO: did:x%x flg:x%x", | |
3907 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
82d9a2a2 | 3908 | break; |
dea3101e | 3909 | default: |
c9f8735b | 3910 | return 1; |
dea3101e | 3911 | } |
dea3101e | 3912 | /* Xmit ELS ACC response tag <ulpIoTag> */ |
e8b62011 JS |
3913 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3914 | "0128 Xmit ELS ACC response tag x%x, XRI: x%x, " | |
e6446439 JS |
3915 | "DID: x%x, nlp_flag: x%x nlp_state: x%x RPI: x%x " |
3916 | "fc_flag x%x\n", | |
e8b62011 JS |
3917 | elsiocb->iotag, elsiocb->iocb.ulpContext, |
3918 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
e6446439 | 3919 | ndlp->nlp_rpi, vport->fc_flag); |
dea3101e | 3920 | if (ndlp->nlp_flag & NLP_LOGO_ACC) { |
2e0fef85 | 3921 | spin_lock_irq(shost->host_lock); |
c9f8735b | 3922 | ndlp->nlp_flag &= ~NLP_LOGO_ACC; |
2e0fef85 | 3923 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
3924 | elsiocb->iocb_cmpl = lpfc_cmpl_els_logo_acc; |
3925 | } else { | |
858c9f6c | 3926 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
dea3101e JB |
3927 | } |
3928 | ||
3929 | phba->fc_stat.elsXmitACC++; | |
3772a991 | 3930 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
dea3101e JB |
3931 | if (rc == IOCB_ERROR) { |
3932 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 3933 | return 1; |
dea3101e | 3934 | } |
c9f8735b | 3935 | return 0; |
dea3101e JB |
3936 | } |
3937 | ||
e59058c4 | 3938 | /** |
3621a710 | 3939 | * lpfc_els_rsp_reject - Propare and issue a rjt response iocb command |
e59058c4 JS |
3940 | * @vport: pointer to a virtual N_Port data structure. |
3941 | * @rejectError: | |
3942 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3943 | * @ndlp: pointer to a node-list data structure. | |
3944 | * @mbox: pointer to the driver internal queue element for mailbox command. | |
3945 | * | |
3946 | * This routine prepares and issue an Reject (RJT) response IOCB | |
3947 | * command. If a @mbox pointer is passed in, it will be put into the | |
3948 | * context_un.mbox field of the IOCB for the completion callback function | |
3949 | * to issue to the HBA later. | |
3950 | * | |
3951 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
3952 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
3953 | * will be stored into the context1 field of the IOCB for the completion | |
3954 | * callback function to the reject response ELS IOCB command. | |
3955 | * | |
3956 | * Return code | |
3957 | * 0 - Successfully issued reject response | |
3958 | * 1 - Failed to issue reject response | |
3959 | **/ | |
dea3101e | 3960 | int |
2e0fef85 | 3961 | lpfc_els_rsp_reject(struct lpfc_vport *vport, uint32_t rejectError, |
858c9f6c JS |
3962 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp, |
3963 | LPFC_MBOXQ_t *mbox) | |
dea3101e | 3964 | { |
2e0fef85 | 3965 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
3966 | IOCB_t *icmd; |
3967 | IOCB_t *oldcmd; | |
3968 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
3969 | struct lpfc_sli *psli; |
3970 | uint8_t *pcmd; | |
3971 | uint16_t cmdsize; | |
3972 | int rc; | |
3973 | ||
3974 | psli = &phba->sli; | |
92d7f7b0 | 3975 | cmdsize = 2 * sizeof(uint32_t); |
2e0fef85 JS |
3976 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
3977 | ndlp->nlp_DID, ELS_CMD_LS_RJT); | |
488d1469 | 3978 | if (!elsiocb) |
c9f8735b | 3979 | return 1; |
dea3101e JB |
3980 | |
3981 | icmd = &elsiocb->iocb; | |
3982 | oldcmd = &oldiocb->iocb; | |
7851fe2c JS |
3983 | icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ |
3984 | icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id; | |
dea3101e JB |
3985 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
3986 | ||
3987 | *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT; | |
92d7f7b0 | 3988 | pcmd += sizeof(uint32_t); |
dea3101e JB |
3989 | *((uint32_t *) (pcmd)) = rejectError; |
3990 | ||
51ef4c26 | 3991 | if (mbox) |
858c9f6c | 3992 | elsiocb->context_un.mbox = mbox; |
858c9f6c | 3993 | |
dea3101e | 3994 | /* Xmit ELS RJT <err> response tag <ulpIoTag> */ |
e8b62011 JS |
3995 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3996 | "0129 Xmit ELS RJT x%x response tag x%x " | |
3997 | "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, " | |
3998 | "rpi x%x\n", | |
3999 | rejectError, elsiocb->iotag, | |
4000 | elsiocb->iocb.ulpContext, ndlp->nlp_DID, | |
4001 | ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi); | |
858c9f6c JS |
4002 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
4003 | "Issue LS_RJT: did:x%x flg:x%x err:x%x", | |
4004 | ndlp->nlp_DID, ndlp->nlp_flag, rejectError); | |
4005 | ||
dea3101e | 4006 | phba->fc_stat.elsXmitLSRJT++; |
858c9f6c | 4007 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
3772a991 | 4008 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
51ef4c26 | 4009 | |
dea3101e JB |
4010 | if (rc == IOCB_ERROR) { |
4011 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 4012 | return 1; |
dea3101e | 4013 | } |
c9f8735b | 4014 | return 0; |
dea3101e JB |
4015 | } |
4016 | ||
e59058c4 | 4017 | /** |
3621a710 | 4018 | * lpfc_els_rsp_adisc_acc - Prepare and issue acc response to adisc iocb cmd |
e59058c4 JS |
4019 | * @vport: pointer to a virtual N_Port data structure. |
4020 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
4021 | * @ndlp: pointer to a node-list data structure. | |
4022 | * | |
4023 | * This routine prepares and issues an Accept (ACC) response to Address | |
4024 | * Discover (ADISC) ELS command. It simply prepares the payload of the IOCB | |
4025 | * and invokes the lpfc_sli_issue_iocb() routine to send out the command. | |
4026 | * | |
4027 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
4028 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
4029 | * will be stored into the context1 field of the IOCB for the completion | |
4030 | * callback function to the ADISC Accept response ELS IOCB command. | |
4031 | * | |
4032 | * Return code | |
4033 | * 0 - Successfully issued acc adisc response | |
4034 | * 1 - Failed to issue adisc acc response | |
4035 | **/ | |
dea3101e | 4036 | int |
2e0fef85 JS |
4037 | lpfc_els_rsp_adisc_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb, |
4038 | struct lpfc_nodelist *ndlp) | |
dea3101e | 4039 | { |
2e0fef85 | 4040 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 4041 | ADISC *ap; |
2e0fef85 | 4042 | IOCB_t *icmd, *oldcmd; |
dea3101e | 4043 | struct lpfc_iocbq *elsiocb; |
dea3101e JB |
4044 | uint8_t *pcmd; |
4045 | uint16_t cmdsize; | |
4046 | int rc; | |
4047 | ||
92d7f7b0 | 4048 | cmdsize = sizeof(uint32_t) + sizeof(ADISC); |
2e0fef85 JS |
4049 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
4050 | ndlp->nlp_DID, ELS_CMD_ACC); | |
488d1469 | 4051 | if (!elsiocb) |
c9f8735b | 4052 | return 1; |
dea3101e | 4053 | |
5b8bd0c9 JS |
4054 | icmd = &elsiocb->iocb; |
4055 | oldcmd = &oldiocb->iocb; | |
7851fe2c JS |
4056 | icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ |
4057 | icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id; | |
5b8bd0c9 | 4058 | |
dea3101e | 4059 | /* Xmit ADISC ACC response tag <ulpIoTag> */ |
e8b62011 JS |
4060 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
4061 | "0130 Xmit ADISC ACC response iotag x%x xri: " | |
4062 | "x%x, did x%x, nlp_flag x%x, nlp_state x%x rpi x%x\n", | |
4063 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
4064 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
4065 | ndlp->nlp_rpi); | |
dea3101e JB |
4066 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
4067 | ||
4068 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 | 4069 | pcmd += sizeof(uint32_t); |
dea3101e JB |
4070 | |
4071 | ap = (ADISC *) (pcmd); | |
4072 | ap->hardAL_PA = phba->fc_pref_ALPA; | |
92d7f7b0 JS |
4073 | memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name)); |
4074 | memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
2e0fef85 | 4075 | ap->DID = be32_to_cpu(vport->fc_myDID); |
dea3101e | 4076 | |
858c9f6c JS |
4077 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
4078 | "Issue ACC ADISC: did:x%x flg:x%x", | |
4079 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
4080 | ||
dea3101e | 4081 | phba->fc_stat.elsXmitACC++; |
858c9f6c | 4082 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
3772a991 | 4083 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
dea3101e JB |
4084 | if (rc == IOCB_ERROR) { |
4085 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 4086 | return 1; |
dea3101e | 4087 | } |
c9f8735b | 4088 | return 0; |
dea3101e JB |
4089 | } |
4090 | ||
e59058c4 | 4091 | /** |
3621a710 | 4092 | * lpfc_els_rsp_prli_acc - Prepare and issue acc response to prli iocb cmd |
e59058c4 JS |
4093 | * @vport: pointer to a virtual N_Port data structure. |
4094 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
4095 | * @ndlp: pointer to a node-list data structure. | |
4096 | * | |
4097 | * This routine prepares and issues an Accept (ACC) response to Process | |
4098 | * Login (PRLI) ELS command. It simply prepares the payload of the IOCB | |
4099 | * and invokes the lpfc_sli_issue_iocb() routine to send out the command. | |
4100 | * | |
4101 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
4102 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
4103 | * will be stored into the context1 field of the IOCB for the completion | |
4104 | * callback function to the PRLI Accept response ELS IOCB command. | |
4105 | * | |
4106 | * Return code | |
4107 | * 0 - Successfully issued acc prli response | |
4108 | * 1 - Failed to issue acc prli response | |
4109 | **/ | |
dea3101e | 4110 | int |
2e0fef85 | 4111 | lpfc_els_rsp_prli_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb, |
5b8bd0c9 | 4112 | struct lpfc_nodelist *ndlp) |
dea3101e | 4113 | { |
2e0fef85 | 4114 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
4115 | PRLI *npr; |
4116 | lpfc_vpd_t *vpd; | |
4117 | IOCB_t *icmd; | |
4118 | IOCB_t *oldcmd; | |
4119 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
4120 | struct lpfc_sli *psli; |
4121 | uint8_t *pcmd; | |
4122 | uint16_t cmdsize; | |
4123 | int rc; | |
4124 | ||
4125 | psli = &phba->sli; | |
dea3101e | 4126 | |
92d7f7b0 | 4127 | cmdsize = sizeof(uint32_t) + sizeof(PRLI); |
2e0fef85 | 4128 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
92d7f7b0 | 4129 | ndlp->nlp_DID, (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK))); |
c9f8735b JW |
4130 | if (!elsiocb) |
4131 | return 1; | |
dea3101e | 4132 | |
5b8bd0c9 JS |
4133 | icmd = &elsiocb->iocb; |
4134 | oldcmd = &oldiocb->iocb; | |
7851fe2c JS |
4135 | icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ |
4136 | icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id; | |
4137 | ||
dea3101e | 4138 | /* Xmit PRLI ACC response tag <ulpIoTag> */ |
e8b62011 JS |
4139 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
4140 | "0131 Xmit PRLI ACC response tag x%x xri x%x, " | |
4141 | "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n", | |
4142 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
4143 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
4144 | ndlp->nlp_rpi); | |
dea3101e JB |
4145 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
4146 | ||
4147 | *((uint32_t *) (pcmd)) = (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK)); | |
92d7f7b0 | 4148 | pcmd += sizeof(uint32_t); |
dea3101e JB |
4149 | |
4150 | /* For PRLI, remainder of payload is PRLI parameter page */ | |
92d7f7b0 | 4151 | memset(pcmd, 0, sizeof(PRLI)); |
dea3101e JB |
4152 | |
4153 | npr = (PRLI *) pcmd; | |
4154 | vpd = &phba->vpd; | |
4155 | /* | |
0d2b6b83 JS |
4156 | * If the remote port is a target and our firmware version is 3.20 or |
4157 | * later, set the following bits for FC-TAPE support. | |
dea3101e | 4158 | */ |
0d2b6b83 JS |
4159 | if ((ndlp->nlp_type & NLP_FCP_TARGET) && |
4160 | (vpd->rev.feaLevelHigh >= 0x02)) { | |
dea3101e JB |
4161 | npr->ConfmComplAllowed = 1; |
4162 | npr->Retry = 1; | |
4163 | npr->TaskRetryIdReq = 1; | |
4164 | } | |
4165 | ||
4166 | npr->acceptRspCode = PRLI_REQ_EXECUTED; | |
4167 | npr->estabImagePair = 1; | |
4168 | npr->readXferRdyDis = 1; | |
4169 | npr->ConfmComplAllowed = 1; | |
4170 | ||
4171 | npr->prliType = PRLI_FCP_TYPE; | |
4172 | npr->initiatorFunc = 1; | |
4173 | ||
858c9f6c JS |
4174 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
4175 | "Issue ACC PRLI: did:x%x flg:x%x", | |
4176 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
4177 | ||
dea3101e | 4178 | phba->fc_stat.elsXmitACC++; |
858c9f6c | 4179 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
dea3101e | 4180 | |
3772a991 | 4181 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
dea3101e JB |
4182 | if (rc == IOCB_ERROR) { |
4183 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 4184 | return 1; |
dea3101e | 4185 | } |
c9f8735b | 4186 | return 0; |
dea3101e JB |
4187 | } |
4188 | ||
e59058c4 | 4189 | /** |
3621a710 | 4190 | * lpfc_els_rsp_rnid_acc - Issue rnid acc response iocb command |
e59058c4 JS |
4191 | * @vport: pointer to a virtual N_Port data structure. |
4192 | * @format: rnid command format. | |
4193 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
4194 | * @ndlp: pointer to a node-list data structure. | |
4195 | * | |
4196 | * This routine issues a Request Node Identification Data (RNID) Accept | |
4197 | * (ACC) response. It constructs the RNID ACC response command according to | |
4198 | * the proper @format and then calls the lpfc_sli_issue_iocb() routine to | |
4199 | * issue the response. Note that this command does not need to hold the ndlp | |
4200 | * reference count for the callback. So, the ndlp reference count taken by | |
4201 | * the lpfc_prep_els_iocb() routine is put back and the context1 field of | |
4202 | * IOCB is set to NULL to indicate to the lpfc_els_free_iocb() routine that | |
4203 | * there is no ndlp reference available. | |
4204 | * | |
4205 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
4206 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
4207 | * will be stored into the context1 field of the IOCB for the completion | |
4208 | * callback function. However, for the RNID Accept Response ELS command, | |
4209 | * this is undone later by this routine after the IOCB is allocated. | |
4210 | * | |
4211 | * Return code | |
4212 | * 0 - Successfully issued acc rnid response | |
4213 | * 1 - Failed to issue acc rnid response | |
4214 | **/ | |
dea3101e | 4215 | static int |
2e0fef85 | 4216 | lpfc_els_rsp_rnid_acc(struct lpfc_vport *vport, uint8_t format, |
329f9bc7 | 4217 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) |
dea3101e | 4218 | { |
2e0fef85 | 4219 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 4220 | RNID *rn; |
2e0fef85 | 4221 | IOCB_t *icmd, *oldcmd; |
dea3101e | 4222 | struct lpfc_iocbq *elsiocb; |
dea3101e JB |
4223 | struct lpfc_sli *psli; |
4224 | uint8_t *pcmd; | |
4225 | uint16_t cmdsize; | |
4226 | int rc; | |
4227 | ||
4228 | psli = &phba->sli; | |
92d7f7b0 JS |
4229 | cmdsize = sizeof(uint32_t) + sizeof(uint32_t) |
4230 | + (2 * sizeof(struct lpfc_name)); | |
dea3101e | 4231 | if (format) |
92d7f7b0 | 4232 | cmdsize += sizeof(RNID_TOP_DISC); |
dea3101e | 4233 | |
2e0fef85 JS |
4234 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
4235 | ndlp->nlp_DID, ELS_CMD_ACC); | |
488d1469 | 4236 | if (!elsiocb) |
c9f8735b | 4237 | return 1; |
dea3101e | 4238 | |
5b8bd0c9 JS |
4239 | icmd = &elsiocb->iocb; |
4240 | oldcmd = &oldiocb->iocb; | |
7851fe2c JS |
4241 | icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ |
4242 | icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id; | |
4243 | ||
dea3101e | 4244 | /* Xmit RNID ACC response tag <ulpIoTag> */ |
e8b62011 JS |
4245 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
4246 | "0132 Xmit RNID ACC response tag x%x xri x%x\n", | |
4247 | elsiocb->iotag, elsiocb->iocb.ulpContext); | |
dea3101e | 4248 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
dea3101e | 4249 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; |
92d7f7b0 | 4250 | pcmd += sizeof(uint32_t); |
dea3101e | 4251 | |
92d7f7b0 | 4252 | memset(pcmd, 0, sizeof(RNID)); |
dea3101e JB |
4253 | rn = (RNID *) (pcmd); |
4254 | rn->Format = format; | |
92d7f7b0 JS |
4255 | rn->CommonLen = (2 * sizeof(struct lpfc_name)); |
4256 | memcpy(&rn->portName, &vport->fc_portname, sizeof(struct lpfc_name)); | |
4257 | memcpy(&rn->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
dea3101e JB |
4258 | switch (format) { |
4259 | case 0: | |
4260 | rn->SpecificLen = 0; | |
4261 | break; | |
4262 | case RNID_TOPOLOGY_DISC: | |
92d7f7b0 | 4263 | rn->SpecificLen = sizeof(RNID_TOP_DISC); |
dea3101e | 4264 | memcpy(&rn->un.topologyDisc.portName, |
92d7f7b0 | 4265 | &vport->fc_portname, sizeof(struct lpfc_name)); |
dea3101e JB |
4266 | rn->un.topologyDisc.unitType = RNID_HBA; |
4267 | rn->un.topologyDisc.physPort = 0; | |
4268 | rn->un.topologyDisc.attachedNodes = 0; | |
4269 | break; | |
4270 | default: | |
4271 | rn->CommonLen = 0; | |
4272 | rn->SpecificLen = 0; | |
4273 | break; | |
4274 | } | |
4275 | ||
858c9f6c JS |
4276 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
4277 | "Issue ACC RNID: did:x%x flg:x%x", | |
4278 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
4279 | ||
dea3101e | 4280 | phba->fc_stat.elsXmitACC++; |
858c9f6c | 4281 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
dea3101e | 4282 | |
3772a991 | 4283 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
dea3101e JB |
4284 | if (rc == IOCB_ERROR) { |
4285 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 4286 | return 1; |
dea3101e | 4287 | } |
c9f8735b | 4288 | return 0; |
dea3101e JB |
4289 | } |
4290 | ||
19ca7609 JS |
4291 | /** |
4292 | * lpfc_els_clear_rrq - Clear the rq that this rrq describes. | |
4293 | * @vport: pointer to a virtual N_Port data structure. | |
4294 | * @iocb: pointer to the lpfc command iocb data structure. | |
4295 | * @ndlp: pointer to a node-list data structure. | |
4296 | * | |
4297 | * Return | |
4298 | **/ | |
4299 | static void | |
4300 | lpfc_els_clear_rrq(struct lpfc_vport *vport, | |
4301 | struct lpfc_iocbq *iocb, struct lpfc_nodelist *ndlp) | |
4302 | { | |
4303 | struct lpfc_hba *phba = vport->phba; | |
4304 | uint8_t *pcmd; | |
4305 | struct RRQ *rrq; | |
4306 | uint16_t rxid; | |
1151e3ec | 4307 | uint16_t xri; |
19ca7609 JS |
4308 | struct lpfc_node_rrq *prrq; |
4309 | ||
4310 | ||
4311 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) iocb->context2)->virt); | |
4312 | pcmd += sizeof(uint32_t); | |
4313 | rrq = (struct RRQ *)pcmd; | |
1151e3ec | 4314 | rrq->rrq_exchg = be32_to_cpu(rrq->rrq_exchg); |
9589b062 | 4315 | rxid = bf_get(rrq_rxid, rrq); |
19ca7609 JS |
4316 | |
4317 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
4318 | "2883 Clear RRQ for SID:x%x OXID:x%x RXID:x%x" | |
4319 | " x%x x%x\n", | |
1151e3ec | 4320 | be32_to_cpu(bf_get(rrq_did, rrq)), |
9589b062 | 4321 | bf_get(rrq_oxid, rrq), |
19ca7609 JS |
4322 | rxid, |
4323 | iocb->iotag, iocb->iocb.ulpContext); | |
4324 | ||
4325 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
4326 | "Clear RRQ: did:x%x flg:x%x exchg:x%.08x", | |
4327 | ndlp->nlp_DID, ndlp->nlp_flag, rrq->rrq_exchg); | |
1151e3ec | 4328 | if (vport->fc_myDID == be32_to_cpu(bf_get(rrq_did, rrq))) |
9589b062 | 4329 | xri = bf_get(rrq_oxid, rrq); |
1151e3ec JS |
4330 | else |
4331 | xri = rxid; | |
4332 | prrq = lpfc_get_active_rrq(vport, xri, ndlp->nlp_DID); | |
19ca7609 | 4333 | if (prrq) |
1151e3ec | 4334 | lpfc_clr_rrq_active(phba, xri, prrq); |
19ca7609 JS |
4335 | return; |
4336 | } | |
4337 | ||
12265f68 JS |
4338 | /** |
4339 | * lpfc_els_rsp_echo_acc - Issue echo acc response | |
4340 | * @vport: pointer to a virtual N_Port data structure. | |
4341 | * @data: pointer to echo data to return in the accept. | |
4342 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
4343 | * @ndlp: pointer to a node-list data structure. | |
4344 | * | |
4345 | * Return code | |
4346 | * 0 - Successfully issued acc echo response | |
4347 | * 1 - Failed to issue acc echo response | |
4348 | **/ | |
4349 | static int | |
4350 | lpfc_els_rsp_echo_acc(struct lpfc_vport *vport, uint8_t *data, | |
4351 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) | |
4352 | { | |
4353 | struct lpfc_hba *phba = vport->phba; | |
4354 | struct lpfc_iocbq *elsiocb; | |
4355 | struct lpfc_sli *psli; | |
4356 | uint8_t *pcmd; | |
4357 | uint16_t cmdsize; | |
4358 | int rc; | |
4359 | ||
4360 | psli = &phba->sli; | |
4361 | cmdsize = oldiocb->iocb.unsli3.rcvsli3.acc_len; | |
4362 | ||
bf08611b JS |
4363 | /* The accumulated length can exceed the BPL_SIZE. For |
4364 | * now, use this as the limit | |
4365 | */ | |
4366 | if (cmdsize > LPFC_BPL_SIZE) | |
4367 | cmdsize = LPFC_BPL_SIZE; | |
12265f68 JS |
4368 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
4369 | ndlp->nlp_DID, ELS_CMD_ACC); | |
4370 | if (!elsiocb) | |
4371 | return 1; | |
4372 | ||
7851fe2c JS |
4373 | elsiocb->iocb.ulpContext = oldiocb->iocb.ulpContext; /* Xri / rx_id */ |
4374 | elsiocb->iocb.unsli3.rcvsli3.ox_id = oldiocb->iocb.unsli3.rcvsli3.ox_id; | |
4375 | ||
12265f68 JS |
4376 | /* Xmit ECHO ACC response tag <ulpIoTag> */ |
4377 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
4378 | "2876 Xmit ECHO ACC response tag x%x xri x%x\n", | |
4379 | elsiocb->iotag, elsiocb->iocb.ulpContext); | |
4380 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
4381 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
4382 | pcmd += sizeof(uint32_t); | |
4383 | memcpy(pcmd, data, cmdsize - sizeof(uint32_t)); | |
4384 | ||
4385 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
4386 | "Issue ACC ECHO: did:x%x flg:x%x", | |
4387 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
4388 | ||
4389 | phba->fc_stat.elsXmitACC++; | |
4390 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; | |
12265f68 JS |
4391 | |
4392 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); | |
4393 | if (rc == IOCB_ERROR) { | |
4394 | lpfc_els_free_iocb(phba, elsiocb); | |
4395 | return 1; | |
4396 | } | |
4397 | return 0; | |
4398 | } | |
4399 | ||
e59058c4 | 4400 | /** |
3621a710 | 4401 | * lpfc_els_disc_adisc - Issue remaining adisc iocbs to npr nodes of a vport |
e59058c4 JS |
4402 | * @vport: pointer to a host virtual N_Port data structure. |
4403 | * | |
4404 | * This routine issues Address Discover (ADISC) ELS commands to those | |
4405 | * N_Ports which are in node port recovery state and ADISC has not been issued | |
4406 | * for the @vport. Each time an ELS ADISC IOCB is issued by invoking the | |
4407 | * lpfc_issue_els_adisc() routine, the per @vport number of discover count | |
4408 | * (num_disc_nodes) shall be incremented. If the num_disc_nodes reaches a | |
4409 | * pre-configured threshold (cfg_discovery_threads), the @vport fc_flag will | |
4410 | * be marked with FC_NLP_MORE bit and the process of issuing remaining ADISC | |
4411 | * IOCBs quit for later pick up. On the other hand, after walking through | |
4412 | * all the ndlps with the @vport and there is none ADISC IOCB issued, the | |
4413 | * @vport fc_flag shall be cleared with FC_NLP_MORE bit indicating there is | |
4414 | * no more ADISC need to be sent. | |
4415 | * | |
4416 | * Return code | |
4417 | * The number of N_Ports with adisc issued. | |
4418 | **/ | |
dea3101e | 4419 | int |
2e0fef85 | 4420 | lpfc_els_disc_adisc(struct lpfc_vport *vport) |
dea3101e | 4421 | { |
2e0fef85 | 4422 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
dea3101e | 4423 | struct lpfc_nodelist *ndlp, *next_ndlp; |
2e0fef85 | 4424 | int sentadisc = 0; |
dea3101e | 4425 | |
685f0bf7 | 4426 | /* go thru NPR nodes and issue any remaining ELS ADISCs */ |
2e0fef85 | 4427 | list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { |
e47c9093 JS |
4428 | if (!NLP_CHK_NODE_ACT(ndlp)) |
4429 | continue; | |
685f0bf7 JS |
4430 | if (ndlp->nlp_state == NLP_STE_NPR_NODE && |
4431 | (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 && | |
4432 | (ndlp->nlp_flag & NLP_NPR_ADISC) != 0) { | |
2e0fef85 | 4433 | spin_lock_irq(shost->host_lock); |
685f0bf7 | 4434 | ndlp->nlp_flag &= ~NLP_NPR_ADISC; |
2e0fef85 | 4435 | spin_unlock_irq(shost->host_lock); |
685f0bf7 | 4436 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 JS |
4437 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); |
4438 | lpfc_issue_els_adisc(vport, ndlp, 0); | |
685f0bf7 | 4439 | sentadisc++; |
2e0fef85 JS |
4440 | vport->num_disc_nodes++; |
4441 | if (vport->num_disc_nodes >= | |
3de2a653 | 4442 | vport->cfg_discovery_threads) { |
2e0fef85 JS |
4443 | spin_lock_irq(shost->host_lock); |
4444 | vport->fc_flag |= FC_NLP_MORE; | |
4445 | spin_unlock_irq(shost->host_lock); | |
685f0bf7 | 4446 | break; |
dea3101e JB |
4447 | } |
4448 | } | |
4449 | } | |
4450 | if (sentadisc == 0) { | |
2e0fef85 JS |
4451 | spin_lock_irq(shost->host_lock); |
4452 | vport->fc_flag &= ~FC_NLP_MORE; | |
4453 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 4454 | } |
2fe165b6 | 4455 | return sentadisc; |
dea3101e JB |
4456 | } |
4457 | ||
e59058c4 | 4458 | /** |
3621a710 | 4459 | * lpfc_els_disc_plogi - Issue plogi for all npr nodes of a vport before adisc |
e59058c4 JS |
4460 | * @vport: pointer to a host virtual N_Port data structure. |
4461 | * | |
4462 | * This routine issues Port Login (PLOGI) ELS commands to all the N_Ports | |
4463 | * which are in node port recovery state, with a @vport. Each time an ELS | |
4464 | * ADISC PLOGI IOCB is issued by invoking the lpfc_issue_els_plogi() routine, | |
4465 | * the per @vport number of discover count (num_disc_nodes) shall be | |
4466 | * incremented. If the num_disc_nodes reaches a pre-configured threshold | |
4467 | * (cfg_discovery_threads), the @vport fc_flag will be marked with FC_NLP_MORE | |
4468 | * bit set and quit the process of issuing remaining ADISC PLOGIN IOCBs for | |
4469 | * later pick up. On the other hand, after walking through all the ndlps with | |
4470 | * the @vport and there is none ADISC PLOGI IOCB issued, the @vport fc_flag | |
4471 | * shall be cleared with the FC_NLP_MORE bit indicating there is no more ADISC | |
4472 | * PLOGI need to be sent. | |
4473 | * | |
4474 | * Return code | |
4475 | * The number of N_Ports with plogi issued. | |
4476 | **/ | |
dea3101e | 4477 | int |
2e0fef85 | 4478 | lpfc_els_disc_plogi(struct lpfc_vport *vport) |
dea3101e | 4479 | { |
2e0fef85 | 4480 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
dea3101e | 4481 | struct lpfc_nodelist *ndlp, *next_ndlp; |
2e0fef85 | 4482 | int sentplogi = 0; |
dea3101e | 4483 | |
2e0fef85 JS |
4484 | /* go thru NPR nodes and issue any remaining ELS PLOGIs */ |
4485 | list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { | |
e47c9093 JS |
4486 | if (!NLP_CHK_NODE_ACT(ndlp)) |
4487 | continue; | |
685f0bf7 JS |
4488 | if (ndlp->nlp_state == NLP_STE_NPR_NODE && |
4489 | (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 && | |
4490 | (ndlp->nlp_flag & NLP_DELAY_TMO) == 0 && | |
4491 | (ndlp->nlp_flag & NLP_NPR_ADISC) == 0) { | |
4492 | ndlp->nlp_prev_state = ndlp->nlp_state; | |
2e0fef85 JS |
4493 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); |
4494 | lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); | |
685f0bf7 | 4495 | sentplogi++; |
2e0fef85 JS |
4496 | vport->num_disc_nodes++; |
4497 | if (vport->num_disc_nodes >= | |
3de2a653 | 4498 | vport->cfg_discovery_threads) { |
2e0fef85 JS |
4499 | spin_lock_irq(shost->host_lock); |
4500 | vport->fc_flag |= FC_NLP_MORE; | |
4501 | spin_unlock_irq(shost->host_lock); | |
685f0bf7 | 4502 | break; |
dea3101e JB |
4503 | } |
4504 | } | |
4505 | } | |
87af33fe JS |
4506 | if (sentplogi) { |
4507 | lpfc_set_disctmo(vport); | |
4508 | } | |
4509 | else { | |
2e0fef85 JS |
4510 | spin_lock_irq(shost->host_lock); |
4511 | vport->fc_flag &= ~FC_NLP_MORE; | |
4512 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 4513 | } |
2fe165b6 | 4514 | return sentplogi; |
dea3101e JB |
4515 | } |
4516 | ||
e59058c4 | 4517 | /** |
3621a710 | 4518 | * lpfc_els_flush_rscn - Clean up any rscn activities with a vport |
e59058c4 JS |
4519 | * @vport: pointer to a host virtual N_Port data structure. |
4520 | * | |
4521 | * This routine cleans up any Registration State Change Notification | |
4522 | * (RSCN) activity with a @vport. Note that the fc_rscn_flush flag of the | |
4523 | * @vport together with the host_lock is used to prevent multiple thread | |
4524 | * trying to access the RSCN array on a same @vport at the same time. | |
4525 | **/ | |
92d7f7b0 | 4526 | void |
2e0fef85 | 4527 | lpfc_els_flush_rscn(struct lpfc_vport *vport) |
dea3101e | 4528 | { |
2e0fef85 JS |
4529 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
4530 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
4531 | int i; |
4532 | ||
7f5f3d0d JS |
4533 | spin_lock_irq(shost->host_lock); |
4534 | if (vport->fc_rscn_flush) { | |
4535 | /* Another thread is walking fc_rscn_id_list on this vport */ | |
4536 | spin_unlock_irq(shost->host_lock); | |
4537 | return; | |
4538 | } | |
4539 | /* Indicate we are walking lpfc_els_flush_rscn on this vport */ | |
4540 | vport->fc_rscn_flush = 1; | |
4541 | spin_unlock_irq(shost->host_lock); | |
4542 | ||
2e0fef85 | 4543 | for (i = 0; i < vport->fc_rscn_id_cnt; i++) { |
92d7f7b0 | 4544 | lpfc_in_buf_free(phba, vport->fc_rscn_id_list[i]); |
2e0fef85 | 4545 | vport->fc_rscn_id_list[i] = NULL; |
dea3101e | 4546 | } |
2e0fef85 JS |
4547 | spin_lock_irq(shost->host_lock); |
4548 | vport->fc_rscn_id_cnt = 0; | |
4549 | vport->fc_flag &= ~(FC_RSCN_MODE | FC_RSCN_DISCOVERY); | |
4550 | spin_unlock_irq(shost->host_lock); | |
4551 | lpfc_can_disctmo(vport); | |
7f5f3d0d JS |
4552 | /* Indicate we are done walking this fc_rscn_id_list */ |
4553 | vport->fc_rscn_flush = 0; | |
dea3101e JB |
4554 | } |
4555 | ||
e59058c4 | 4556 | /** |
3621a710 | 4557 | * lpfc_rscn_payload_check - Check whether there is a pending rscn to a did |
e59058c4 JS |
4558 | * @vport: pointer to a host virtual N_Port data structure. |
4559 | * @did: remote destination port identifier. | |
4560 | * | |
4561 | * This routine checks whether there is any pending Registration State | |
4562 | * Configuration Notification (RSCN) to a @did on @vport. | |
4563 | * | |
4564 | * Return code | |
4565 | * None zero - The @did matched with a pending rscn | |
4566 | * 0 - not able to match @did with a pending rscn | |
4567 | **/ | |
dea3101e | 4568 | int |
2e0fef85 | 4569 | lpfc_rscn_payload_check(struct lpfc_vport *vport, uint32_t did) |
dea3101e JB |
4570 | { |
4571 | D_ID ns_did; | |
4572 | D_ID rscn_did; | |
dea3101e | 4573 | uint32_t *lp; |
92d7f7b0 | 4574 | uint32_t payload_len, i; |
7f5f3d0d | 4575 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
dea3101e JB |
4576 | |
4577 | ns_did.un.word = did; | |
dea3101e JB |
4578 | |
4579 | /* Never match fabric nodes for RSCNs */ | |
4580 | if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) | |
2e0fef85 | 4581 | return 0; |
dea3101e JB |
4582 | |
4583 | /* If we are doing a FULL RSCN rediscovery, match everything */ | |
2e0fef85 | 4584 | if (vport->fc_flag & FC_RSCN_DISCOVERY) |
c9f8735b | 4585 | return did; |
dea3101e | 4586 | |
7f5f3d0d JS |
4587 | spin_lock_irq(shost->host_lock); |
4588 | if (vport->fc_rscn_flush) { | |
4589 | /* Another thread is walking fc_rscn_id_list on this vport */ | |
4590 | spin_unlock_irq(shost->host_lock); | |
4591 | return 0; | |
4592 | } | |
4593 | /* Indicate we are walking fc_rscn_id_list on this vport */ | |
4594 | vport->fc_rscn_flush = 1; | |
4595 | spin_unlock_irq(shost->host_lock); | |
2e0fef85 | 4596 | for (i = 0; i < vport->fc_rscn_id_cnt; i++) { |
92d7f7b0 JS |
4597 | lp = vport->fc_rscn_id_list[i]->virt; |
4598 | payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK); | |
4599 | payload_len -= sizeof(uint32_t); /* take off word 0 */ | |
dea3101e | 4600 | while (payload_len) { |
92d7f7b0 JS |
4601 | rscn_did.un.word = be32_to_cpu(*lp++); |
4602 | payload_len -= sizeof(uint32_t); | |
eaf15d5b JS |
4603 | switch (rscn_did.un.b.resv & RSCN_ADDRESS_FORMAT_MASK) { |
4604 | case RSCN_ADDRESS_FORMAT_PORT: | |
6fb120a7 JS |
4605 | if ((ns_did.un.b.domain == rscn_did.un.b.domain) |
4606 | && (ns_did.un.b.area == rscn_did.un.b.area) | |
4607 | && (ns_did.un.b.id == rscn_did.un.b.id)) | |
7f5f3d0d | 4608 | goto return_did_out; |
dea3101e | 4609 | break; |
eaf15d5b | 4610 | case RSCN_ADDRESS_FORMAT_AREA: |
dea3101e JB |
4611 | if ((ns_did.un.b.domain == rscn_did.un.b.domain) |
4612 | && (ns_did.un.b.area == rscn_did.un.b.area)) | |
7f5f3d0d | 4613 | goto return_did_out; |
dea3101e | 4614 | break; |
eaf15d5b | 4615 | case RSCN_ADDRESS_FORMAT_DOMAIN: |
dea3101e | 4616 | if (ns_did.un.b.domain == rscn_did.un.b.domain) |
7f5f3d0d | 4617 | goto return_did_out; |
dea3101e | 4618 | break; |
eaf15d5b | 4619 | case RSCN_ADDRESS_FORMAT_FABRIC: |
7f5f3d0d | 4620 | goto return_did_out; |
dea3101e JB |
4621 | } |
4622 | } | |
92d7f7b0 | 4623 | } |
7f5f3d0d JS |
4624 | /* Indicate we are done with walking fc_rscn_id_list on this vport */ |
4625 | vport->fc_rscn_flush = 0; | |
92d7f7b0 | 4626 | return 0; |
7f5f3d0d JS |
4627 | return_did_out: |
4628 | /* Indicate we are done with walking fc_rscn_id_list on this vport */ | |
4629 | vport->fc_rscn_flush = 0; | |
4630 | return did; | |
dea3101e JB |
4631 | } |
4632 | ||
e59058c4 | 4633 | /** |
3621a710 | 4634 | * lpfc_rscn_recovery_check - Send recovery event to vport nodes matching rscn |
e59058c4 JS |
4635 | * @vport: pointer to a host virtual N_Port data structure. |
4636 | * | |
4637 | * This routine sends recovery (NLP_EVT_DEVICE_RECOVERY) event to the | |
4638 | * state machine for a @vport's nodes that are with pending RSCN (Registration | |
4639 | * State Change Notification). | |
4640 | * | |
4641 | * Return code | |
4642 | * 0 - Successful (currently alway return 0) | |
4643 | **/ | |
dea3101e | 4644 | static int |
2e0fef85 | 4645 | lpfc_rscn_recovery_check(struct lpfc_vport *vport) |
dea3101e | 4646 | { |
685f0bf7 | 4647 | struct lpfc_nodelist *ndlp = NULL; |
dea3101e | 4648 | |
0d2b6b83 | 4649 | /* Move all affected nodes by pending RSCNs to NPR state. */ |
2e0fef85 | 4650 | list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { |
e47c9093 | 4651 | if (!NLP_CHK_NODE_ACT(ndlp) || |
0d2b6b83 JS |
4652 | (ndlp->nlp_state == NLP_STE_UNUSED_NODE) || |
4653 | !lpfc_rscn_payload_check(vport, ndlp->nlp_DID)) | |
685f0bf7 | 4654 | continue; |
2e0fef85 | 4655 | lpfc_disc_state_machine(vport, ndlp, NULL, |
0d2b6b83 JS |
4656 | NLP_EVT_DEVICE_RECOVERY); |
4657 | lpfc_cancel_retry_delay_tmo(vport, ndlp); | |
dea3101e | 4658 | } |
c9f8735b | 4659 | return 0; |
dea3101e JB |
4660 | } |
4661 | ||
ddcc50f0 | 4662 | /** |
3621a710 | 4663 | * lpfc_send_rscn_event - Send an RSCN event to management application |
ddcc50f0 JS |
4664 | * @vport: pointer to a host virtual N_Port data structure. |
4665 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4666 | * | |
4667 | * lpfc_send_rscn_event sends an RSCN netlink event to management | |
4668 | * applications. | |
4669 | */ | |
4670 | static void | |
4671 | lpfc_send_rscn_event(struct lpfc_vport *vport, | |
4672 | struct lpfc_iocbq *cmdiocb) | |
4673 | { | |
4674 | struct lpfc_dmabuf *pcmd; | |
4675 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
4676 | uint32_t *payload_ptr; | |
4677 | uint32_t payload_len; | |
4678 | struct lpfc_rscn_event_header *rscn_event_data; | |
4679 | ||
4680 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
4681 | payload_ptr = (uint32_t *) pcmd->virt; | |
4682 | payload_len = be32_to_cpu(*payload_ptr & ~ELS_CMD_MASK); | |
4683 | ||
4684 | rscn_event_data = kmalloc(sizeof(struct lpfc_rscn_event_header) + | |
4685 | payload_len, GFP_KERNEL); | |
4686 | if (!rscn_event_data) { | |
4687 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
4688 | "0147 Failed to allocate memory for RSCN event\n"); | |
4689 | return; | |
4690 | } | |
4691 | rscn_event_data->event_type = FC_REG_RSCN_EVENT; | |
4692 | rscn_event_data->payload_length = payload_len; | |
4693 | memcpy(rscn_event_data->rscn_payload, payload_ptr, | |
4694 | payload_len); | |
4695 | ||
4696 | fc_host_post_vendor_event(shost, | |
4697 | fc_get_event_number(), | |
4698 | sizeof(struct lpfc_els_event_header) + payload_len, | |
4699 | (char *)rscn_event_data, | |
4700 | LPFC_NL_VENDOR_ID); | |
4701 | ||
4702 | kfree(rscn_event_data); | |
4703 | } | |
4704 | ||
e59058c4 | 4705 | /** |
3621a710 | 4706 | * lpfc_els_rcv_rscn - Process an unsolicited rscn iocb |
e59058c4 JS |
4707 | * @vport: pointer to a host virtual N_Port data structure. |
4708 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4709 | * @ndlp: pointer to a node-list data structure. | |
4710 | * | |
4711 | * This routine processes an unsolicited RSCN (Registration State Change | |
4712 | * Notification) IOCB. First, the payload of the unsolicited RSCN is walked | |
4713 | * to invoke fc_host_post_event() routine to the FC transport layer. If the | |
4714 | * discover state machine is about to begin discovery, it just accepts the | |
4715 | * RSCN and the discovery process will satisfy the RSCN. If this RSCN only | |
4716 | * contains N_Port IDs for other vports on this HBA, it just accepts the | |
4717 | * RSCN and ignore processing it. If the state machine is in the recovery | |
4718 | * state, the fc_rscn_id_list of this @vport is walked and the | |
4719 | * lpfc_rscn_recovery_check() routine is invoked to send recovery event for | |
4720 | * all nodes that match RSCN payload. Otherwise, the lpfc_els_handle_rscn() | |
4721 | * routine is invoked to handle the RSCN event. | |
4722 | * | |
4723 | * Return code | |
4724 | * 0 - Just sent the acc response | |
4725 | * 1 - Sent the acc response and waited for name server completion | |
4726 | **/ | |
dea3101e | 4727 | static int |
2e0fef85 | 4728 | lpfc_els_rcv_rscn(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
51ef4c26 | 4729 | struct lpfc_nodelist *ndlp) |
dea3101e | 4730 | { |
2e0fef85 JS |
4731 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
4732 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 4733 | struct lpfc_dmabuf *pcmd; |
92d7f7b0 | 4734 | uint32_t *lp, *datap; |
dea3101e | 4735 | IOCB_t *icmd; |
92d7f7b0 | 4736 | uint32_t payload_len, length, nportid, *cmd; |
7f5f3d0d | 4737 | int rscn_cnt; |
92d7f7b0 | 4738 | int rscn_id = 0, hba_id = 0; |
d2873e4c | 4739 | int i; |
dea3101e JB |
4740 | |
4741 | icmd = &cmdiocb->iocb; | |
4742 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
4743 | lp = (uint32_t *) pcmd->virt; | |
4744 | ||
92d7f7b0 JS |
4745 | payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK); |
4746 | payload_len -= sizeof(uint32_t); /* take off word 0 */ | |
dea3101e | 4747 | /* RSCN received */ |
e8b62011 JS |
4748 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
4749 | "0214 RSCN received Data: x%x x%x x%x x%x\n", | |
7f5f3d0d JS |
4750 | vport->fc_flag, payload_len, *lp, |
4751 | vport->fc_rscn_id_cnt); | |
ddcc50f0 JS |
4752 | |
4753 | /* Send an RSCN event to the management application */ | |
4754 | lpfc_send_rscn_event(vport, cmdiocb); | |
4755 | ||
d2873e4c | 4756 | for (i = 0; i < payload_len/sizeof(uint32_t); i++) |
2e0fef85 | 4757 | fc_host_post_event(shost, fc_get_event_number(), |
d2873e4c JS |
4758 | FCH_EVT_RSCN, lp[i]); |
4759 | ||
dea3101e JB |
4760 | /* If we are about to begin discovery, just ACC the RSCN. |
4761 | * Discovery processing will satisfy it. | |
4762 | */ | |
2e0fef85 | 4763 | if (vport->port_state <= LPFC_NS_QRY) { |
858c9f6c JS |
4764 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
4765 | "RCV RSCN ignore: did:x%x/ste:x%x flg:x%x", | |
4766 | ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); | |
4767 | ||
51ef4c26 | 4768 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
c9f8735b | 4769 | return 0; |
dea3101e JB |
4770 | } |
4771 | ||
92d7f7b0 JS |
4772 | /* If this RSCN just contains NPortIDs for other vports on this HBA, |
4773 | * just ACC and ignore it. | |
4774 | */ | |
4775 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && | |
3de2a653 | 4776 | !(vport->cfg_peer_port_login)) { |
92d7f7b0 JS |
4777 | i = payload_len; |
4778 | datap = lp; | |
4779 | while (i > 0) { | |
4780 | nportid = *datap++; | |
4781 | nportid = ((be32_to_cpu(nportid)) & Mask_DID); | |
4782 | i -= sizeof(uint32_t); | |
4783 | rscn_id++; | |
549e55cd JS |
4784 | if (lpfc_find_vport_by_did(phba, nportid)) |
4785 | hba_id++; | |
92d7f7b0 JS |
4786 | } |
4787 | if (rscn_id == hba_id) { | |
4788 | /* ALL NPortIDs in RSCN are on HBA */ | |
e8b62011 | 4789 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
d7c255b2 | 4790 | "0219 Ignore RSCN " |
e8b62011 JS |
4791 | "Data: x%x x%x x%x x%x\n", |
4792 | vport->fc_flag, payload_len, | |
7f5f3d0d | 4793 | *lp, vport->fc_rscn_id_cnt); |
858c9f6c JS |
4794 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
4795 | "RCV RSCN vport: did:x%x/ste:x%x flg:x%x", | |
4796 | ndlp->nlp_DID, vport->port_state, | |
4797 | ndlp->nlp_flag); | |
4798 | ||
92d7f7b0 | 4799 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, |
51ef4c26 | 4800 | ndlp, NULL); |
92d7f7b0 JS |
4801 | return 0; |
4802 | } | |
4803 | } | |
4804 | ||
7f5f3d0d JS |
4805 | spin_lock_irq(shost->host_lock); |
4806 | if (vport->fc_rscn_flush) { | |
4807 | /* Another thread is walking fc_rscn_id_list on this vport */ | |
7f5f3d0d | 4808 | vport->fc_flag |= FC_RSCN_DISCOVERY; |
97957244 | 4809 | spin_unlock_irq(shost->host_lock); |
58da1ffb JS |
4810 | /* Send back ACC */ |
4811 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); | |
7f5f3d0d JS |
4812 | return 0; |
4813 | } | |
4814 | /* Indicate we are walking fc_rscn_id_list on this vport */ | |
4815 | vport->fc_rscn_flush = 1; | |
4816 | spin_unlock_irq(shost->host_lock); | |
af901ca1 | 4817 | /* Get the array count after successfully have the token */ |
7f5f3d0d | 4818 | rscn_cnt = vport->fc_rscn_id_cnt; |
dea3101e JB |
4819 | /* If we are already processing an RSCN, save the received |
4820 | * RSCN payload buffer, cmdiocb->context2 to process later. | |
4821 | */ | |
2e0fef85 | 4822 | if (vport->fc_flag & (FC_RSCN_MODE | FC_NDISC_ACTIVE)) { |
858c9f6c JS |
4823 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
4824 | "RCV RSCN defer: did:x%x/ste:x%x flg:x%x", | |
4825 | ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); | |
4826 | ||
09372820 | 4827 | spin_lock_irq(shost->host_lock); |
92d7f7b0 JS |
4828 | vport->fc_flag |= FC_RSCN_DEFERRED; |
4829 | if ((rscn_cnt < FC_MAX_HOLD_RSCN) && | |
2e0fef85 | 4830 | !(vport->fc_flag & FC_RSCN_DISCOVERY)) { |
2e0fef85 JS |
4831 | vport->fc_flag |= FC_RSCN_MODE; |
4832 | spin_unlock_irq(shost->host_lock); | |
92d7f7b0 JS |
4833 | if (rscn_cnt) { |
4834 | cmd = vport->fc_rscn_id_list[rscn_cnt-1]->virt; | |
4835 | length = be32_to_cpu(*cmd & ~ELS_CMD_MASK); | |
4836 | } | |
4837 | if ((rscn_cnt) && | |
4838 | (payload_len + length <= LPFC_BPL_SIZE)) { | |
4839 | *cmd &= ELS_CMD_MASK; | |
7f5f3d0d | 4840 | *cmd |= cpu_to_be32(payload_len + length); |
92d7f7b0 JS |
4841 | memcpy(((uint8_t *)cmd) + length, lp, |
4842 | payload_len); | |
4843 | } else { | |
4844 | vport->fc_rscn_id_list[rscn_cnt] = pcmd; | |
4845 | vport->fc_rscn_id_cnt++; | |
4846 | /* If we zero, cmdiocb->context2, the calling | |
4847 | * routine will not try to free it. | |
4848 | */ | |
4849 | cmdiocb->context2 = NULL; | |
4850 | } | |
dea3101e | 4851 | /* Deferred RSCN */ |
e8b62011 JS |
4852 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
4853 | "0235 Deferred RSCN " | |
4854 | "Data: x%x x%x x%x\n", | |
4855 | vport->fc_rscn_id_cnt, vport->fc_flag, | |
4856 | vport->port_state); | |
dea3101e | 4857 | } else { |
2e0fef85 JS |
4858 | vport->fc_flag |= FC_RSCN_DISCOVERY; |
4859 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 4860 | /* ReDiscovery RSCN */ |
e8b62011 JS |
4861 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
4862 | "0234 ReDiscovery RSCN " | |
4863 | "Data: x%x x%x x%x\n", | |
4864 | vport->fc_rscn_id_cnt, vport->fc_flag, | |
4865 | vport->port_state); | |
dea3101e | 4866 | } |
7f5f3d0d JS |
4867 | /* Indicate we are done walking fc_rscn_id_list on this vport */ |
4868 | vport->fc_rscn_flush = 0; | |
dea3101e | 4869 | /* Send back ACC */ |
51ef4c26 | 4870 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
dea3101e | 4871 | /* send RECOVERY event for ALL nodes that match RSCN payload */ |
2e0fef85 | 4872 | lpfc_rscn_recovery_check(vport); |
09372820 | 4873 | spin_lock_irq(shost->host_lock); |
92d7f7b0 | 4874 | vport->fc_flag &= ~FC_RSCN_DEFERRED; |
09372820 | 4875 | spin_unlock_irq(shost->host_lock); |
c9f8735b | 4876 | return 0; |
dea3101e | 4877 | } |
858c9f6c JS |
4878 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
4879 | "RCV RSCN: did:x%x/ste:x%x flg:x%x", | |
4880 | ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); | |
4881 | ||
2e0fef85 JS |
4882 | spin_lock_irq(shost->host_lock); |
4883 | vport->fc_flag |= FC_RSCN_MODE; | |
4884 | spin_unlock_irq(shost->host_lock); | |
4885 | vport->fc_rscn_id_list[vport->fc_rscn_id_cnt++] = pcmd; | |
7f5f3d0d JS |
4886 | /* Indicate we are done walking fc_rscn_id_list on this vport */ |
4887 | vport->fc_rscn_flush = 0; | |
dea3101e JB |
4888 | /* |
4889 | * If we zero, cmdiocb->context2, the calling routine will | |
4890 | * not try to free it. | |
4891 | */ | |
4892 | cmdiocb->context2 = NULL; | |
2e0fef85 | 4893 | lpfc_set_disctmo(vport); |
dea3101e | 4894 | /* Send back ACC */ |
51ef4c26 | 4895 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
dea3101e | 4896 | /* send RECOVERY event for ALL nodes that match RSCN payload */ |
2e0fef85 | 4897 | lpfc_rscn_recovery_check(vport); |
2e0fef85 | 4898 | return lpfc_els_handle_rscn(vport); |
dea3101e JB |
4899 | } |
4900 | ||
e59058c4 | 4901 | /** |
3621a710 | 4902 | * lpfc_els_handle_rscn - Handle rscn for a vport |
e59058c4 JS |
4903 | * @vport: pointer to a host virtual N_Port data structure. |
4904 | * | |
4905 | * This routine handles the Registration State Configuration Notification | |
4906 | * (RSCN) for a @vport. If login to NameServer does not exist, a new ndlp shall | |
4907 | * be created and a Port Login (PLOGI) to the NameServer is issued. Otherwise, | |
4908 | * if the ndlp to NameServer exists, a Common Transport (CT) command to the | |
4909 | * NameServer shall be issued. If CT command to the NameServer fails to be | |
4910 | * issued, the lpfc_els_flush_rscn() routine shall be invoked to clean up any | |
4911 | * RSCN activities with the @vport. | |
4912 | * | |
4913 | * Return code | |
4914 | * 0 - Cleaned up rscn on the @vport | |
4915 | * 1 - Wait for plogi to name server before proceed | |
4916 | **/ | |
dea3101e | 4917 | int |
2e0fef85 | 4918 | lpfc_els_handle_rscn(struct lpfc_vport *vport) |
dea3101e JB |
4919 | { |
4920 | struct lpfc_nodelist *ndlp; | |
2e0fef85 | 4921 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 4922 | |
92d7f7b0 JS |
4923 | /* Ignore RSCN if the port is being torn down. */ |
4924 | if (vport->load_flag & FC_UNLOADING) { | |
4925 | lpfc_els_flush_rscn(vport); | |
4926 | return 0; | |
4927 | } | |
4928 | ||
dea3101e | 4929 | /* Start timer for RSCN processing */ |
2e0fef85 | 4930 | lpfc_set_disctmo(vport); |
dea3101e JB |
4931 | |
4932 | /* RSCN processed */ | |
e8b62011 JS |
4933 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
4934 | "0215 RSCN processed Data: x%x x%x x%x x%x\n", | |
4935 | vport->fc_flag, 0, vport->fc_rscn_id_cnt, | |
4936 | vport->port_state); | |
dea3101e JB |
4937 | |
4938 | /* To process RSCN, first compare RSCN data with NameServer */ | |
2e0fef85 | 4939 | vport->fc_ns_retry = 0; |
0ff10d46 JS |
4940 | vport->num_disc_nodes = 0; |
4941 | ||
2e0fef85 | 4942 | ndlp = lpfc_findnode_did(vport, NameServer_DID); |
e47c9093 JS |
4943 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) |
4944 | && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) { | |
dea3101e | 4945 | /* Good ndlp, issue CT Request to NameServer */ |
92d7f7b0 | 4946 | if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0) == 0) |
dea3101e JB |
4947 | /* Wait for NameServer query cmpl before we can |
4948 | continue */ | |
c9f8735b | 4949 | return 1; |
dea3101e JB |
4950 | } else { |
4951 | /* If login to NameServer does not exist, issue one */ | |
4952 | /* Good status, issue PLOGI to NameServer */ | |
2e0fef85 | 4953 | ndlp = lpfc_findnode_did(vport, NameServer_DID); |
e47c9093 | 4954 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) |
dea3101e JB |
4955 | /* Wait for NameServer login cmpl before we can |
4956 | continue */ | |
c9f8735b | 4957 | return 1; |
2e0fef85 | 4958 | |
e47c9093 JS |
4959 | if (ndlp) { |
4960 | ndlp = lpfc_enable_node(vport, ndlp, | |
4961 | NLP_STE_PLOGI_ISSUE); | |
4962 | if (!ndlp) { | |
4963 | lpfc_els_flush_rscn(vport); | |
4964 | return 0; | |
4965 | } | |
4966 | ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE; | |
dea3101e | 4967 | } else { |
e47c9093 JS |
4968 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); |
4969 | if (!ndlp) { | |
4970 | lpfc_els_flush_rscn(vport); | |
4971 | return 0; | |
4972 | } | |
2e0fef85 | 4973 | lpfc_nlp_init(vport, ndlp, NameServer_DID); |
5024ab17 | 4974 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 4975 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); |
dea3101e | 4976 | } |
e47c9093 JS |
4977 | ndlp->nlp_type |= NLP_FABRIC; |
4978 | lpfc_issue_els_plogi(vport, NameServer_DID, 0); | |
4979 | /* Wait for NameServer login cmpl before we can | |
4980 | * continue | |
4981 | */ | |
4982 | return 1; | |
dea3101e JB |
4983 | } |
4984 | ||
2e0fef85 | 4985 | lpfc_els_flush_rscn(vport); |
c9f8735b | 4986 | return 0; |
dea3101e JB |
4987 | } |
4988 | ||
e59058c4 | 4989 | /** |
3621a710 | 4990 | * lpfc_els_rcv_flogi - Process an unsolicited flogi iocb |
e59058c4 JS |
4991 | * @vport: pointer to a host virtual N_Port data structure. |
4992 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4993 | * @ndlp: pointer to a node-list data structure. | |
4994 | * | |
4995 | * This routine processes Fabric Login (FLOGI) IOCB received as an ELS | |
4996 | * unsolicited event. An unsolicited FLOGI can be received in a point-to- | |
4997 | * point topology. As an unsolicited FLOGI should not be received in a loop | |
4998 | * mode, any unsolicited FLOGI received in loop mode shall be ignored. The | |
4999 | * lpfc_check_sparm() routine is invoked to check the parameters in the | |
5000 | * unsolicited FLOGI. If parameters validation failed, the routine | |
5001 | * lpfc_els_rsp_reject() shall be called with reject reason code set to | |
5002 | * LSEXP_SPARM_OPTIONS to reject the FLOGI. Otherwise, the Port WWN in the | |
5003 | * FLOGI shall be compared with the Port WWN of the @vport to determine who | |
5004 | * will initiate PLOGI. The higher lexicographical value party shall has | |
5005 | * higher priority (as the winning port) and will initiate PLOGI and | |
5006 | * communicate Port_IDs (Addresses) for both nodes in PLOGI. The result | |
5007 | * of this will be marked in the @vport fc_flag field with FC_PT2PT_PLOGI | |
5008 | * and then the lpfc_els_rsp_acc() routine is invoked to accept the FLOGI. | |
5009 | * | |
5010 | * Return code | |
5011 | * 0 - Successfully processed the unsolicited flogi | |
5012 | * 1 - Failed to process the unsolicited flogi | |
5013 | **/ | |
dea3101e | 5014 | static int |
2e0fef85 | 5015 | lpfc_els_rcv_flogi(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
51ef4c26 | 5016 | struct lpfc_nodelist *ndlp) |
dea3101e | 5017 | { |
2e0fef85 JS |
5018 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
5019 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
5020 | struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; |
5021 | uint32_t *lp = (uint32_t *) pcmd->virt; | |
5022 | IOCB_t *icmd = &cmdiocb->iocb; | |
5023 | struct serv_parm *sp; | |
5024 | LPFC_MBOXQ_t *mbox; | |
5025 | struct ls_rjt stat; | |
5026 | uint32_t cmd, did; | |
5027 | int rc; | |
5028 | ||
5029 | cmd = *lp++; | |
5030 | sp = (struct serv_parm *) lp; | |
5031 | ||
5032 | /* FLOGI received */ | |
5033 | ||
2e0fef85 | 5034 | lpfc_set_disctmo(vport); |
dea3101e | 5035 | |
76a95d75 | 5036 | if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { |
dea3101e JB |
5037 | /* We should never receive a FLOGI in loop mode, ignore it */ |
5038 | did = icmd->un.elsreq64.remoteID; | |
5039 | ||
5040 | /* An FLOGI ELS command <elsCmd> was received from DID <did> in | |
5041 | Loop Mode */ | |
e8b62011 JS |
5042 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
5043 | "0113 An FLOGI ELS command x%x was " | |
5044 | "received from DID x%x in Loop Mode\n", | |
5045 | cmd, did); | |
c9f8735b | 5046 | return 1; |
dea3101e JB |
5047 | } |
5048 | ||
341af102 | 5049 | if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3, 1))) { |
dea3101e JB |
5050 | /* For a FLOGI we accept, then if our portname is greater |
5051 | * then the remote portname we initiate Nport login. | |
5052 | */ | |
5053 | ||
2e0fef85 | 5054 | rc = memcmp(&vport->fc_portname, &sp->portName, |
92d7f7b0 | 5055 | sizeof(struct lpfc_name)); |
dea3101e JB |
5056 | |
5057 | if (!rc) { | |
1b51197d JS |
5058 | if (phba->sli_rev < LPFC_SLI_REV4) { |
5059 | mbox = mempool_alloc(phba->mbox_mem_pool, | |
5060 | GFP_KERNEL); | |
5061 | if (!mbox) | |
5062 | return 1; | |
5063 | lpfc_linkdown(phba); | |
5064 | lpfc_init_link(phba, mbox, | |
5065 | phba->cfg_topology, | |
5066 | phba->cfg_link_speed); | |
5067 | mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; | |
5068 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
5069 | mbox->vport = vport; | |
5070 | rc = lpfc_sli_issue_mbox(phba, mbox, | |
5071 | MBX_NOWAIT); | |
5072 | lpfc_set_loopback_flag(phba); | |
5073 | if (rc == MBX_NOT_FINISHED) | |
5074 | mempool_free(mbox, phba->mbox_mem_pool); | |
c9f8735b | 5075 | return 1; |
1b51197d JS |
5076 | } else { |
5077 | /* abort the flogi coming back to ourselves | |
5078 | * due to external loopback on the port. | |
5079 | */ | |
5080 | lpfc_els_abort_flogi(phba); | |
5081 | return 0; | |
dea3101e | 5082 | } |
2fe165b6 | 5083 | } else if (rc > 0) { /* greater than */ |
2e0fef85 JS |
5084 | spin_lock_irq(shost->host_lock); |
5085 | vport->fc_flag |= FC_PT2PT_PLOGI; | |
5086 | spin_unlock_irq(shost->host_lock); | |
939723a4 JS |
5087 | |
5088 | /* If we have the high WWPN we can assign our own | |
5089 | * myDID; otherwise, we have to WAIT for a PLOGI | |
5090 | * from the remote NPort to find out what it | |
5091 | * will be. | |
5092 | */ | |
e6446439 | 5093 | vport->fc_myDID = PT2PT_LocalID; |
939723a4 JS |
5094 | } |
5095 | ||
5096 | /* | |
5097 | * The vport state should go to LPFC_FLOGI only | |
5098 | * AFTER we issue a FLOGI, not receive one. | |
5099 | */ | |
2e0fef85 JS |
5100 | spin_lock_irq(shost->host_lock); |
5101 | vport->fc_flag |= FC_PT2PT; | |
5102 | vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
5103 | spin_unlock_irq(shost->host_lock); | |
939723a4 JS |
5104 | |
5105 | /* | |
5106 | * We temporarily set fc_myDID to make it look like we are | |
5107 | * a Fabric. This is done just so we end up with the right | |
5108 | * did / sid on the FLOGI ACC rsp. | |
5109 | */ | |
5110 | did = vport->fc_myDID; | |
5111 | vport->fc_myDID = Fabric_DID; | |
5112 | ||
dea3101e JB |
5113 | } else { |
5114 | /* Reject this request because invalid parameters */ | |
5115 | stat.un.b.lsRjtRsvd0 = 0; | |
5116 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
5117 | stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; | |
5118 | stat.un.b.vendorUnique = 0; | |
939723a4 JS |
5119 | |
5120 | /* | |
5121 | * We temporarily set fc_myDID to make it look like we are | |
5122 | * a Fabric. This is done just so we end up with the right | |
5123 | * did / sid on the FLOGI LS_RJT rsp. | |
5124 | */ | |
5125 | did = vport->fc_myDID; | |
5126 | vport->fc_myDID = Fabric_DID; | |
5127 | ||
858c9f6c JS |
5128 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, |
5129 | NULL); | |
939723a4 JS |
5130 | |
5131 | /* Now lets put fc_myDID back to what its supposed to be */ | |
5132 | vport->fc_myDID = did; | |
5133 | ||
c9f8735b | 5134 | return 1; |
dea3101e JB |
5135 | } |
5136 | ||
5137 | /* Send back ACC */ | |
51ef4c26 | 5138 | lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL); |
dea3101e | 5139 | |
939723a4 JS |
5140 | /* Now lets put fc_myDID back to what its supposed to be */ |
5141 | vport->fc_myDID = did; | |
5142 | ||
e6446439 | 5143 | if (!(vport->fc_flag & FC_PT2PT_PLOGI)) { |
939723a4 | 5144 | |
e6446439 JS |
5145 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
5146 | if (!mbox) | |
5147 | goto fail; | |
5148 | ||
5149 | lpfc_config_link(phba, mbox); | |
5150 | ||
5151 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
5152 | mbox->vport = vport; | |
5153 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); | |
5154 | if (rc == MBX_NOT_FINISHED) { | |
5155 | mempool_free(mbox, phba->mbox_mem_pool); | |
5156 | goto fail; | |
5157 | } | |
5158 | } | |
5159 | ||
c9f8735b | 5160 | return 0; |
e6446439 JS |
5161 | fail: |
5162 | return 1; | |
dea3101e JB |
5163 | } |
5164 | ||
e59058c4 | 5165 | /** |
3621a710 | 5166 | * lpfc_els_rcv_rnid - Process an unsolicited rnid iocb |
e59058c4 JS |
5167 | * @vport: pointer to a host virtual N_Port data structure. |
5168 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5169 | * @ndlp: pointer to a node-list data structure. | |
5170 | * | |
5171 | * This routine processes Request Node Identification Data (RNID) IOCB | |
5172 | * received as an ELS unsolicited event. Only when the RNID specified format | |
5173 | * 0x0 or 0xDF (Topology Discovery Specific Node Identification Data) | |
5174 | * present, this routine will invoke the lpfc_els_rsp_rnid_acc() routine to | |
5175 | * Accept (ACC) the RNID ELS command. All the other RNID formats are | |
5176 | * rejected by invoking the lpfc_els_rsp_reject() routine. | |
5177 | * | |
5178 | * Return code | |
5179 | * 0 - Successfully processed rnid iocb (currently always return 0) | |
5180 | **/ | |
dea3101e | 5181 | static int |
2e0fef85 JS |
5182 | lpfc_els_rcv_rnid(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
5183 | struct lpfc_nodelist *ndlp) | |
dea3101e JB |
5184 | { |
5185 | struct lpfc_dmabuf *pcmd; | |
5186 | uint32_t *lp; | |
5187 | IOCB_t *icmd; | |
5188 | RNID *rn; | |
5189 | struct ls_rjt stat; | |
5190 | uint32_t cmd, did; | |
5191 | ||
5192 | icmd = &cmdiocb->iocb; | |
5193 | did = icmd->un.elsreq64.remoteID; | |
5194 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
5195 | lp = (uint32_t *) pcmd->virt; | |
5196 | ||
5197 | cmd = *lp++; | |
5198 | rn = (RNID *) lp; | |
5199 | ||
5200 | /* RNID received */ | |
5201 | ||
5202 | switch (rn->Format) { | |
5203 | case 0: | |
5204 | case RNID_TOPOLOGY_DISC: | |
5205 | /* Send back ACC */ | |
2e0fef85 | 5206 | lpfc_els_rsp_rnid_acc(vport, rn->Format, cmdiocb, ndlp); |
dea3101e JB |
5207 | break; |
5208 | default: | |
5209 | /* Reject this request because format not supported */ | |
5210 | stat.un.b.lsRjtRsvd0 = 0; | |
5211 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
5212 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
5213 | stat.un.b.vendorUnique = 0; | |
858c9f6c JS |
5214 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, |
5215 | NULL); | |
dea3101e | 5216 | } |
c9f8735b | 5217 | return 0; |
dea3101e JB |
5218 | } |
5219 | ||
12265f68 JS |
5220 | /** |
5221 | * lpfc_els_rcv_echo - Process an unsolicited echo iocb | |
5222 | * @vport: pointer to a host virtual N_Port data structure. | |
5223 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5224 | * @ndlp: pointer to a node-list data structure. | |
5225 | * | |
5226 | * Return code | |
5227 | * 0 - Successfully processed echo iocb (currently always return 0) | |
5228 | **/ | |
5229 | static int | |
5230 | lpfc_els_rcv_echo(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, | |
5231 | struct lpfc_nodelist *ndlp) | |
5232 | { | |
5233 | uint8_t *pcmd; | |
5234 | ||
5235 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt); | |
5236 | ||
5237 | /* skip over first word of echo command to find echo data */ | |
5238 | pcmd += sizeof(uint32_t); | |
5239 | ||
5240 | lpfc_els_rsp_echo_acc(vport, pcmd, cmdiocb, ndlp); | |
5241 | return 0; | |
5242 | } | |
5243 | ||
e59058c4 | 5244 | /** |
3621a710 | 5245 | * lpfc_els_rcv_lirr - Process an unsolicited lirr iocb |
e59058c4 JS |
5246 | * @vport: pointer to a host virtual N_Port data structure. |
5247 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5248 | * @ndlp: pointer to a node-list data structure. | |
5249 | * | |
5250 | * This routine processes a Link Incident Report Registration(LIRR) IOCB | |
5251 | * received as an ELS unsolicited event. Currently, this function just invokes | |
5252 | * the lpfc_els_rsp_reject() routine to reject the LIRR IOCB unconditionally. | |
5253 | * | |
5254 | * Return code | |
5255 | * 0 - Successfully processed lirr iocb (currently always return 0) | |
5256 | **/ | |
dea3101e | 5257 | static int |
2e0fef85 JS |
5258 | lpfc_els_rcv_lirr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
5259 | struct lpfc_nodelist *ndlp) | |
7bb3b137 JW |
5260 | { |
5261 | struct ls_rjt stat; | |
5262 | ||
5263 | /* For now, unconditionally reject this command */ | |
5264 | stat.un.b.lsRjtRsvd0 = 0; | |
5265 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
5266 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
5267 | stat.un.b.vendorUnique = 0; | |
858c9f6c | 5268 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); |
7bb3b137 JW |
5269 | return 0; |
5270 | } | |
5271 | ||
5ffc266e JS |
5272 | /** |
5273 | * lpfc_els_rcv_rrq - Process an unsolicited rrq iocb | |
5274 | * @vport: pointer to a host virtual N_Port data structure. | |
5275 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5276 | * @ndlp: pointer to a node-list data structure. | |
5277 | * | |
5278 | * This routine processes a Reinstate Recovery Qualifier (RRQ) IOCB | |
5279 | * received as an ELS unsolicited event. A request to RRQ shall only | |
5280 | * be accepted if the Originator Nx_Port N_Port_ID or the Responder | |
5281 | * Nx_Port N_Port_ID of the target Exchange is the same as the | |
5282 | * N_Port_ID of the Nx_Port that makes the request. If the RRQ is | |
5283 | * not accepted, an LS_RJT with reason code "Unable to perform | |
5284 | * command request" and reason code explanation "Invalid Originator | |
5285 | * S_ID" shall be returned. For now, we just unconditionally accept | |
5286 | * RRQ from the target. | |
5287 | **/ | |
5288 | static void | |
5289 | lpfc_els_rcv_rrq(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, | |
5290 | struct lpfc_nodelist *ndlp) | |
5291 | { | |
5292 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); | |
19ca7609 JS |
5293 | if (vport->phba->sli_rev == LPFC_SLI_REV4) |
5294 | lpfc_els_clear_rrq(vport, cmdiocb, ndlp); | |
5ffc266e JS |
5295 | } |
5296 | ||
12265f68 JS |
5297 | /** |
5298 | * lpfc_els_rsp_rls_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd | |
5299 | * @phba: pointer to lpfc hba data structure. | |
5300 | * @pmb: pointer to the driver internal queue element for mailbox command. | |
5301 | * | |
5302 | * This routine is the completion callback function for the MBX_READ_LNK_STAT | |
5303 | * mailbox command. This callback function is to actually send the Accept | |
5304 | * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It | |
5305 | * collects the link statistics from the completion of the MBX_READ_LNK_STAT | |
5306 | * mailbox command, constructs the RPS response with the link statistics | |
5307 | * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC | |
5308 | * response to the RPS. | |
5309 | * | |
5310 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
5311 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
5312 | * will be stored into the context1 field of the IOCB for the completion | |
5313 | * callback function to the RPS Accept Response ELS IOCB command. | |
5314 | * | |
5315 | **/ | |
5316 | static void | |
5317 | lpfc_els_rsp_rls_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) | |
5318 | { | |
5319 | MAILBOX_t *mb; | |
5320 | IOCB_t *icmd; | |
5321 | struct RLS_RSP *rls_rsp; | |
5322 | uint8_t *pcmd; | |
5323 | struct lpfc_iocbq *elsiocb; | |
5324 | struct lpfc_nodelist *ndlp; | |
7851fe2c JS |
5325 | uint16_t oxid; |
5326 | uint16_t rxid; | |
12265f68 JS |
5327 | uint32_t cmdsize; |
5328 | ||
5329 | mb = &pmb->u.mb; | |
5330 | ||
5331 | ndlp = (struct lpfc_nodelist *) pmb->context2; | |
7851fe2c JS |
5332 | rxid = (uint16_t) ((unsigned long)(pmb->context1) & 0xffff); |
5333 | oxid = (uint16_t) (((unsigned long)(pmb->context1) >> 16) & 0xffff); | |
12265f68 JS |
5334 | pmb->context1 = NULL; |
5335 | pmb->context2 = NULL; | |
5336 | ||
5337 | if (mb->mbxStatus) { | |
5338 | mempool_free(pmb, phba->mbox_mem_pool); | |
5339 | return; | |
5340 | } | |
5341 | ||
5342 | cmdsize = sizeof(struct RLS_RSP) + sizeof(uint32_t); | |
12265f68 JS |
5343 | elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, |
5344 | lpfc_max_els_tries, ndlp, | |
5345 | ndlp->nlp_DID, ELS_CMD_ACC); | |
5346 | ||
5347 | /* Decrement the ndlp reference count from previous mbox command */ | |
5348 | lpfc_nlp_put(ndlp); | |
5349 | ||
37db57e3 JS |
5350 | if (!elsiocb) { |
5351 | mempool_free(pmb, phba->mbox_mem_pool); | |
12265f68 | 5352 | return; |
37db57e3 | 5353 | } |
12265f68 JS |
5354 | |
5355 | icmd = &elsiocb->iocb; | |
7851fe2c JS |
5356 | icmd->ulpContext = rxid; |
5357 | icmd->unsli3.rcvsli3.ox_id = oxid; | |
12265f68 JS |
5358 | |
5359 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
5360 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
5361 | pcmd += sizeof(uint32_t); /* Skip past command */ | |
5362 | rls_rsp = (struct RLS_RSP *)pcmd; | |
5363 | ||
5364 | rls_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt); | |
5365 | rls_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt); | |
5366 | rls_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt); | |
5367 | rls_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt); | |
5368 | rls_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord); | |
5369 | rls_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt); | |
37db57e3 | 5370 | mempool_free(pmb, phba->mbox_mem_pool); |
12265f68 JS |
5371 | /* Xmit ELS RLS ACC response tag <ulpIoTag> */ |
5372 | lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS, | |
5373 | "2874 Xmit ELS RLS ACC response tag x%x xri x%x, " | |
5374 | "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n", | |
5375 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
5376 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
5377 | ndlp->nlp_rpi); | |
5378 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; | |
5379 | phba->fc_stat.elsXmitACC++; | |
5380 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR) | |
5381 | lpfc_els_free_iocb(phba, elsiocb); | |
5382 | } | |
5383 | ||
e59058c4 | 5384 | /** |
3621a710 | 5385 | * lpfc_els_rsp_rps_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd |
e59058c4 JS |
5386 | * @phba: pointer to lpfc hba data structure. |
5387 | * @pmb: pointer to the driver internal queue element for mailbox command. | |
5388 | * | |
5389 | * This routine is the completion callback function for the MBX_READ_LNK_STAT | |
5390 | * mailbox command. This callback function is to actually send the Accept | |
5391 | * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It | |
5392 | * collects the link statistics from the completion of the MBX_READ_LNK_STAT | |
5393 | * mailbox command, constructs the RPS response with the link statistics | |
5394 | * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC | |
5395 | * response to the RPS. | |
5396 | * | |
5397 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
5398 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
5399 | * will be stored into the context1 field of the IOCB for the completion | |
5400 | * callback function to the RPS Accept Response ELS IOCB command. | |
5401 | * | |
5402 | **/ | |
082c0266 | 5403 | static void |
329f9bc7 | 5404 | lpfc_els_rsp_rps_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) |
7bb3b137 | 5405 | { |
7bb3b137 JW |
5406 | MAILBOX_t *mb; |
5407 | IOCB_t *icmd; | |
5408 | RPS_RSP *rps_rsp; | |
5409 | uint8_t *pcmd; | |
5410 | struct lpfc_iocbq *elsiocb; | |
5411 | struct lpfc_nodelist *ndlp; | |
7851fe2c JS |
5412 | uint16_t status; |
5413 | uint16_t oxid; | |
5414 | uint16_t rxid; | |
7bb3b137 JW |
5415 | uint32_t cmdsize; |
5416 | ||
04c68496 | 5417 | mb = &pmb->u.mb; |
7bb3b137 JW |
5418 | |
5419 | ndlp = (struct lpfc_nodelist *) pmb->context2; | |
7851fe2c JS |
5420 | rxid = (uint16_t) ((unsigned long)(pmb->context1) & 0xffff); |
5421 | oxid = (uint16_t) (((unsigned long)(pmb->context1) >> 16) & 0xffff); | |
041976fb RD |
5422 | pmb->context1 = NULL; |
5423 | pmb->context2 = NULL; | |
7bb3b137 JW |
5424 | |
5425 | if (mb->mbxStatus) { | |
329f9bc7 | 5426 | mempool_free(pmb, phba->mbox_mem_pool); |
7bb3b137 JW |
5427 | return; |
5428 | } | |
5429 | ||
5430 | cmdsize = sizeof(RPS_RSP) + sizeof(uint32_t); | |
329f9bc7 | 5431 | mempool_free(pmb, phba->mbox_mem_pool); |
2e0fef85 JS |
5432 | elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, |
5433 | lpfc_max_els_tries, ndlp, | |
5434 | ndlp->nlp_DID, ELS_CMD_ACC); | |
fa4066b6 JS |
5435 | |
5436 | /* Decrement the ndlp reference count from previous mbox command */ | |
329f9bc7 | 5437 | lpfc_nlp_put(ndlp); |
fa4066b6 | 5438 | |
c9f8735b | 5439 | if (!elsiocb) |
7bb3b137 | 5440 | return; |
7bb3b137 JW |
5441 | |
5442 | icmd = &elsiocb->iocb; | |
7851fe2c JS |
5443 | icmd->ulpContext = rxid; |
5444 | icmd->unsli3.rcvsli3.ox_id = oxid; | |
7bb3b137 JW |
5445 | |
5446 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
5447 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 | 5448 | pcmd += sizeof(uint32_t); /* Skip past command */ |
7bb3b137 JW |
5449 | rps_rsp = (RPS_RSP *)pcmd; |
5450 | ||
76a95d75 | 5451 | if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) |
7bb3b137 JW |
5452 | status = 0x10; |
5453 | else | |
5454 | status = 0x8; | |
2e0fef85 | 5455 | if (phba->pport->fc_flag & FC_FABRIC) |
7bb3b137 JW |
5456 | status |= 0x4; |
5457 | ||
5458 | rps_rsp->rsvd1 = 0; | |
09372820 JS |
5459 | rps_rsp->portStatus = cpu_to_be16(status); |
5460 | rps_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt); | |
5461 | rps_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt); | |
5462 | rps_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt); | |
5463 | rps_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt); | |
5464 | rps_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord); | |
5465 | rps_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt); | |
7bb3b137 | 5466 | /* Xmit ELS RPS ACC response tag <ulpIoTag> */ |
e8b62011 JS |
5467 | lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS, |
5468 | "0118 Xmit ELS RPS ACC response tag x%x xri x%x, " | |
5469 | "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n", | |
5470 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
5471 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
5472 | ndlp->nlp_rpi); | |
858c9f6c | 5473 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
7bb3b137 | 5474 | phba->fc_stat.elsXmitACC++; |
3772a991 | 5475 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR) |
7bb3b137 | 5476 | lpfc_els_free_iocb(phba, elsiocb); |
7bb3b137 JW |
5477 | return; |
5478 | } | |
5479 | ||
e59058c4 | 5480 | /** |
12265f68 JS |
5481 | * lpfc_els_rcv_rls - Process an unsolicited rls iocb |
5482 | * @vport: pointer to a host virtual N_Port data structure. | |
5483 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5484 | * @ndlp: pointer to a node-list data structure. | |
5485 | * | |
5486 | * This routine processes Read Port Status (RPL) IOCB received as an | |
5487 | * ELS unsolicited event. It first checks the remote port state. If the | |
5488 | * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE | |
5489 | * state, it invokes the lpfc_els_rsl_reject() routine to send the reject | |
5490 | * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command | |
5491 | * for reading the HBA link statistics. It is for the callback function, | |
5492 | * lpfc_els_rsp_rls_acc(), set to the MBX_READ_LNK_STAT mailbox command | |
5493 | * to actually sending out RPL Accept (ACC) response. | |
5494 | * | |
5495 | * Return codes | |
5496 | * 0 - Successfully processed rls iocb (currently always return 0) | |
5497 | **/ | |
5498 | static int | |
5499 | lpfc_els_rcv_rls(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, | |
5500 | struct lpfc_nodelist *ndlp) | |
5501 | { | |
5502 | struct lpfc_hba *phba = vport->phba; | |
5503 | LPFC_MBOXQ_t *mbox; | |
5504 | struct lpfc_dmabuf *pcmd; | |
5505 | struct ls_rjt stat; | |
5506 | ||
5507 | if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && | |
5508 | (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) | |
5509 | /* reject the unsolicited RPS request and done with it */ | |
5510 | goto reject_out; | |
5511 | ||
5512 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
5513 | ||
5514 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC); | |
5515 | if (mbox) { | |
5516 | lpfc_read_lnk_stat(phba, mbox); | |
7851fe2c JS |
5517 | mbox->context1 = (void *)((unsigned long) |
5518 | ((cmdiocb->iocb.unsli3.rcvsli3.ox_id << 16) | | |
5519 | cmdiocb->iocb.ulpContext)); /* rx_id */ | |
12265f68 JS |
5520 | mbox->context2 = lpfc_nlp_get(ndlp); |
5521 | mbox->vport = vport; | |
5522 | mbox->mbox_cmpl = lpfc_els_rsp_rls_acc; | |
5523 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) | |
5524 | != MBX_NOT_FINISHED) | |
5525 | /* Mbox completion will send ELS Response */ | |
5526 | return 0; | |
5527 | /* Decrement reference count used for the failed mbox | |
5528 | * command. | |
5529 | */ | |
5530 | lpfc_nlp_put(ndlp); | |
5531 | mempool_free(mbox, phba->mbox_mem_pool); | |
5532 | } | |
5533 | reject_out: | |
5534 | /* issue rejection response */ | |
5535 | stat.un.b.lsRjtRsvd0 = 0; | |
5536 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
5537 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
5538 | stat.un.b.vendorUnique = 0; | |
5539 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); | |
5540 | return 0; | |
5541 | } | |
5542 | ||
5543 | /** | |
5544 | * lpfc_els_rcv_rtv - Process an unsolicited rtv iocb | |
5545 | * @vport: pointer to a host virtual N_Port data structure. | |
5546 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5547 | * @ndlp: pointer to a node-list data structure. | |
5548 | * | |
5549 | * This routine processes Read Timout Value (RTV) IOCB received as an | |
5550 | * ELS unsolicited event. It first checks the remote port state. If the | |
5551 | * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE | |
5552 | * state, it invokes the lpfc_els_rsl_reject() routine to send the reject | |
5553 | * response. Otherwise, it sends the Accept(ACC) response to a Read Timeout | |
5554 | * Value (RTV) unsolicited IOCB event. | |
5555 | * | |
5556 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
5557 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
5558 | * will be stored into the context1 field of the IOCB for the completion | |
5559 | * callback function to the RPS Accept Response ELS IOCB command. | |
5560 | * | |
5561 | * Return codes | |
5562 | * 0 - Successfully processed rtv iocb (currently always return 0) | |
5563 | **/ | |
5564 | static int | |
5565 | lpfc_els_rcv_rtv(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, | |
5566 | struct lpfc_nodelist *ndlp) | |
5567 | { | |
5568 | struct lpfc_hba *phba = vport->phba; | |
5569 | struct ls_rjt stat; | |
5570 | struct RTV_RSP *rtv_rsp; | |
5571 | uint8_t *pcmd; | |
5572 | struct lpfc_iocbq *elsiocb; | |
5573 | uint32_t cmdsize; | |
5574 | ||
5575 | ||
5576 | if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && | |
5577 | (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) | |
5578 | /* reject the unsolicited RPS request and done with it */ | |
5579 | goto reject_out; | |
5580 | ||
5581 | cmdsize = sizeof(struct RTV_RSP) + sizeof(uint32_t); | |
5582 | elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, | |
5583 | lpfc_max_els_tries, ndlp, | |
5584 | ndlp->nlp_DID, ELS_CMD_ACC); | |
5585 | ||
5586 | if (!elsiocb) | |
5587 | return 1; | |
5588 | ||
5589 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
5590 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
5591 | pcmd += sizeof(uint32_t); /* Skip past command */ | |
5592 | ||
5593 | /* use the command's xri in the response */ | |
7851fe2c JS |
5594 | elsiocb->iocb.ulpContext = cmdiocb->iocb.ulpContext; /* Xri / rx_id */ |
5595 | elsiocb->iocb.unsli3.rcvsli3.ox_id = cmdiocb->iocb.unsli3.rcvsli3.ox_id; | |
12265f68 JS |
5596 | |
5597 | rtv_rsp = (struct RTV_RSP *)pcmd; | |
5598 | ||
5599 | /* populate RTV payload */ | |
5600 | rtv_rsp->ratov = cpu_to_be32(phba->fc_ratov * 1000); /* report msecs */ | |
5601 | rtv_rsp->edtov = cpu_to_be32(phba->fc_edtov); | |
5602 | bf_set(qtov_edtovres, rtv_rsp, phba->fc_edtovResol ? 1 : 0); | |
5603 | bf_set(qtov_rttov, rtv_rsp, 0); /* Field is for FC ONLY */ | |
5604 | rtv_rsp->qtov = cpu_to_be32(rtv_rsp->qtov); | |
5605 | ||
5606 | /* Xmit ELS RLS ACC response tag <ulpIoTag> */ | |
5607 | lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS, | |
5608 | "2875 Xmit ELS RTV ACC response tag x%x xri x%x, " | |
5609 | "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x, " | |
5610 | "Data: x%x x%x x%x\n", | |
5611 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
5612 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
5613 | ndlp->nlp_rpi, | |
5614 | rtv_rsp->ratov, rtv_rsp->edtov, rtv_rsp->qtov); | |
5615 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; | |
5616 | phba->fc_stat.elsXmitACC++; | |
5617 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR) | |
5618 | lpfc_els_free_iocb(phba, elsiocb); | |
5619 | return 0; | |
5620 | ||
5621 | reject_out: | |
5622 | /* issue rejection response */ | |
5623 | stat.un.b.lsRjtRsvd0 = 0; | |
5624 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
5625 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
5626 | stat.un.b.vendorUnique = 0; | |
5627 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); | |
5628 | return 0; | |
5629 | } | |
5630 | ||
5631 | /* lpfc_els_rcv_rps - Process an unsolicited rps iocb | |
e59058c4 JS |
5632 | * @vport: pointer to a host virtual N_Port data structure. |
5633 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5634 | * @ndlp: pointer to a node-list data structure. | |
5635 | * | |
5636 | * This routine processes Read Port Status (RPS) IOCB received as an | |
5637 | * ELS unsolicited event. It first checks the remote port state. If the | |
5638 | * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE | |
5639 | * state, it invokes the lpfc_els_rsp_reject() routine to send the reject | |
5640 | * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command | |
5641 | * for reading the HBA link statistics. It is for the callback function, | |
5642 | * lpfc_els_rsp_rps_acc(), set to the MBX_READ_LNK_STAT mailbox command | |
5643 | * to actually sending out RPS Accept (ACC) response. | |
5644 | * | |
5645 | * Return codes | |
5646 | * 0 - Successfully processed rps iocb (currently always return 0) | |
5647 | **/ | |
7bb3b137 | 5648 | static int |
2e0fef85 JS |
5649 | lpfc_els_rcv_rps(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
5650 | struct lpfc_nodelist *ndlp) | |
dea3101e | 5651 | { |
2e0fef85 | 5652 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 5653 | uint32_t *lp; |
7bb3b137 JW |
5654 | uint8_t flag; |
5655 | LPFC_MBOXQ_t *mbox; | |
5656 | struct lpfc_dmabuf *pcmd; | |
5657 | RPS *rps; | |
5658 | struct ls_rjt stat; | |
5659 | ||
2fe165b6 | 5660 | if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && |
90160e01 JS |
5661 | (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) |
5662 | /* reject the unsolicited RPS request and done with it */ | |
5663 | goto reject_out; | |
7bb3b137 JW |
5664 | |
5665 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
5666 | lp = (uint32_t *) pcmd->virt; | |
5667 | flag = (be32_to_cpu(*lp++) & 0xf); | |
5668 | rps = (RPS *) lp; | |
5669 | ||
5670 | if ((flag == 0) || | |
5671 | ((flag == 1) && (be32_to_cpu(rps->un.portNum) == 0)) || | |
2e0fef85 | 5672 | ((flag == 2) && (memcmp(&rps->un.portName, &vport->fc_portname, |
92d7f7b0 | 5673 | sizeof(struct lpfc_name)) == 0))) { |
2e0fef85 | 5674 | |
92d7f7b0 JS |
5675 | printk("Fix me....\n"); |
5676 | dump_stack(); | |
2e0fef85 JS |
5677 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC); |
5678 | if (mbox) { | |
7bb3b137 | 5679 | lpfc_read_lnk_stat(phba, mbox); |
7851fe2c JS |
5680 | mbox->context1 = (void *)((unsigned long) |
5681 | ((cmdiocb->iocb.unsli3.rcvsli3.ox_id << 16) | | |
5682 | cmdiocb->iocb.ulpContext)); /* rx_id */ | |
329f9bc7 | 5683 | mbox->context2 = lpfc_nlp_get(ndlp); |
92d7f7b0 | 5684 | mbox->vport = vport; |
7bb3b137 | 5685 | mbox->mbox_cmpl = lpfc_els_rsp_rps_acc; |
fa4066b6 | 5686 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) |
0b727fea | 5687 | != MBX_NOT_FINISHED) |
7bb3b137 JW |
5688 | /* Mbox completion will send ELS Response */ |
5689 | return 0; | |
fa4066b6 JS |
5690 | /* Decrement reference count used for the failed mbox |
5691 | * command. | |
5692 | */ | |
329f9bc7 | 5693 | lpfc_nlp_put(ndlp); |
7bb3b137 JW |
5694 | mempool_free(mbox, phba->mbox_mem_pool); |
5695 | } | |
5696 | } | |
90160e01 JS |
5697 | |
5698 | reject_out: | |
5699 | /* issue rejection response */ | |
7bb3b137 JW |
5700 | stat.un.b.lsRjtRsvd0 = 0; |
5701 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
5702 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
5703 | stat.un.b.vendorUnique = 0; | |
858c9f6c | 5704 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); |
7bb3b137 JW |
5705 | return 0; |
5706 | } | |
5707 | ||
19ca7609 JS |
5708 | /* lpfc_issue_els_rrq - Process an unsolicited rps iocb |
5709 | * @vport: pointer to a host virtual N_Port data structure. | |
5710 | * @ndlp: pointer to a node-list data structure. | |
5711 | * @did: DID of the target. | |
5712 | * @rrq: Pointer to the rrq struct. | |
5713 | * | |
5714 | * Build a ELS RRQ command and send it to the target. If the issue_iocb is | |
5715 | * Successful the the completion handler will clear the RRQ. | |
5716 | * | |
5717 | * Return codes | |
5718 | * 0 - Successfully sent rrq els iocb. | |
5719 | * 1 - Failed to send rrq els iocb. | |
5720 | **/ | |
5721 | static int | |
5722 | lpfc_issue_els_rrq(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, | |
5723 | uint32_t did, struct lpfc_node_rrq *rrq) | |
5724 | { | |
5725 | struct lpfc_hba *phba = vport->phba; | |
5726 | struct RRQ *els_rrq; | |
5727 | IOCB_t *icmd; | |
5728 | struct lpfc_iocbq *elsiocb; | |
5729 | uint8_t *pcmd; | |
5730 | uint16_t cmdsize; | |
5731 | int ret; | |
5732 | ||
5733 | ||
5734 | if (ndlp != rrq->ndlp) | |
5735 | ndlp = rrq->ndlp; | |
5736 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) | |
5737 | return 1; | |
5738 | ||
5739 | /* If ndlp is not NULL, we will bump the reference count on it */ | |
5740 | cmdsize = (sizeof(uint32_t) + sizeof(struct RRQ)); | |
5741 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, did, | |
5742 | ELS_CMD_RRQ); | |
5743 | if (!elsiocb) | |
5744 | return 1; | |
5745 | ||
5746 | icmd = &elsiocb->iocb; | |
5747 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
5748 | ||
5749 | /* For RRQ request, remainder of payload is Exchange IDs */ | |
5750 | *((uint32_t *) (pcmd)) = ELS_CMD_RRQ; | |
5751 | pcmd += sizeof(uint32_t); | |
5752 | els_rrq = (struct RRQ *) pcmd; | |
5753 | ||
ee0f4fe1 | 5754 | bf_set(rrq_oxid, els_rrq, phba->sli4_hba.xri_ids[rrq->xritag]); |
19ca7609 JS |
5755 | bf_set(rrq_rxid, els_rrq, rrq->rxid); |
5756 | bf_set(rrq_did, els_rrq, vport->fc_myDID); | |
5757 | els_rrq->rrq = cpu_to_be32(els_rrq->rrq); | |
5758 | els_rrq->rrq_exchg = cpu_to_be32(els_rrq->rrq_exchg); | |
5759 | ||
5760 | ||
5761 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, | |
5762 | "Issue RRQ: did:x%x", | |
5763 | did, rrq->xritag, rrq->rxid); | |
5764 | elsiocb->context_un.rrq = rrq; | |
5765 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rrq; | |
5766 | ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); | |
5767 | ||
5768 | if (ret == IOCB_ERROR) { | |
5769 | lpfc_els_free_iocb(phba, elsiocb); | |
5770 | return 1; | |
5771 | } | |
5772 | return 0; | |
5773 | } | |
5774 | ||
5775 | /** | |
5776 | * lpfc_send_rrq - Sends ELS RRQ if needed. | |
5777 | * @phba: pointer to lpfc hba data structure. | |
5778 | * @rrq: pointer to the active rrq. | |
5779 | * | |
5780 | * This routine will call the lpfc_issue_els_rrq if the rrq is | |
5781 | * still active for the xri. If this function returns a failure then | |
5782 | * the caller needs to clean up the RRQ by calling lpfc_clr_active_rrq. | |
5783 | * | |
5784 | * Returns 0 Success. | |
5785 | * 1 Failure. | |
5786 | **/ | |
5787 | int | |
5788 | lpfc_send_rrq(struct lpfc_hba *phba, struct lpfc_node_rrq *rrq) | |
5789 | { | |
5790 | struct lpfc_nodelist *ndlp = lpfc_findnode_did(rrq->vport, | |
5791 | rrq->nlp_DID); | |
5792 | if (lpfc_test_rrq_active(phba, ndlp, rrq->xritag)) | |
5793 | return lpfc_issue_els_rrq(rrq->vport, ndlp, | |
5794 | rrq->nlp_DID, rrq); | |
5795 | else | |
5796 | return 1; | |
5797 | } | |
5798 | ||
e59058c4 | 5799 | /** |
3621a710 | 5800 | * lpfc_els_rsp_rpl_acc - Issue an accept rpl els command |
e59058c4 JS |
5801 | * @vport: pointer to a host virtual N_Port data structure. |
5802 | * @cmdsize: size of the ELS command. | |
5803 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
5804 | * @ndlp: pointer to a node-list data structure. | |
5805 | * | |
5806 | * This routine issuees an Accept (ACC) Read Port List (RPL) ELS command. | |
5807 | * It is to be called by the lpfc_els_rcv_rpl() routine to accept the RPL. | |
5808 | * | |
5809 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
5810 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
5811 | * will be stored into the context1 field of the IOCB for the completion | |
5812 | * callback function to the RPL Accept Response ELS command. | |
5813 | * | |
5814 | * Return code | |
5815 | * 0 - Successfully issued ACC RPL ELS command | |
5816 | * 1 - Failed to issue ACC RPL ELS command | |
5817 | **/ | |
082c0266 | 5818 | static int |
2e0fef85 JS |
5819 | lpfc_els_rsp_rpl_acc(struct lpfc_vport *vport, uint16_t cmdsize, |
5820 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) | |
7bb3b137 | 5821 | { |
2e0fef85 JS |
5822 | struct lpfc_hba *phba = vport->phba; |
5823 | IOCB_t *icmd, *oldcmd; | |
7bb3b137 JW |
5824 | RPL_RSP rpl_rsp; |
5825 | struct lpfc_iocbq *elsiocb; | |
7bb3b137 | 5826 | uint8_t *pcmd; |
dea3101e | 5827 | |
2e0fef85 JS |
5828 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
5829 | ndlp->nlp_DID, ELS_CMD_ACC); | |
7bb3b137 | 5830 | |
488d1469 | 5831 | if (!elsiocb) |
7bb3b137 | 5832 | return 1; |
488d1469 | 5833 | |
7bb3b137 JW |
5834 | icmd = &elsiocb->iocb; |
5835 | oldcmd = &oldiocb->iocb; | |
7851fe2c JS |
5836 | icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ |
5837 | icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id; | |
7bb3b137 JW |
5838 | |
5839 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
5840 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 | 5841 | pcmd += sizeof(uint16_t); |
7bb3b137 JW |
5842 | *((uint16_t *)(pcmd)) = be16_to_cpu(cmdsize); |
5843 | pcmd += sizeof(uint16_t); | |
5844 | ||
5845 | /* Setup the RPL ACC payload */ | |
5846 | rpl_rsp.listLen = be32_to_cpu(1); | |
5847 | rpl_rsp.index = 0; | |
5848 | rpl_rsp.port_num_blk.portNum = 0; | |
2e0fef85 JS |
5849 | rpl_rsp.port_num_blk.portID = be32_to_cpu(vport->fc_myDID); |
5850 | memcpy(&rpl_rsp.port_num_blk.portName, &vport->fc_portname, | |
7bb3b137 | 5851 | sizeof(struct lpfc_name)); |
7bb3b137 | 5852 | memcpy(pcmd, &rpl_rsp, cmdsize - sizeof(uint32_t)); |
7bb3b137 | 5853 | /* Xmit ELS RPL ACC response tag <ulpIoTag> */ |
e8b62011 JS |
5854 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
5855 | "0120 Xmit ELS RPL ACC response tag x%x " | |
5856 | "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, " | |
5857 | "rpi x%x\n", | |
5858 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
5859 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
5860 | ndlp->nlp_rpi); | |
858c9f6c | 5861 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
7bb3b137 | 5862 | phba->fc_stat.elsXmitACC++; |
3772a991 JS |
5863 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
5864 | IOCB_ERROR) { | |
7bb3b137 JW |
5865 | lpfc_els_free_iocb(phba, elsiocb); |
5866 | return 1; | |
5867 | } | |
5868 | return 0; | |
5869 | } | |
5870 | ||
e59058c4 | 5871 | /** |
3621a710 | 5872 | * lpfc_els_rcv_rpl - Process an unsolicited rpl iocb |
e59058c4 JS |
5873 | * @vport: pointer to a host virtual N_Port data structure. |
5874 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5875 | * @ndlp: pointer to a node-list data structure. | |
5876 | * | |
5877 | * This routine processes Read Port List (RPL) IOCB received as an ELS | |
5878 | * unsolicited event. It first checks the remote port state. If the remote | |
5879 | * port is not in NLP_STE_UNMAPPED_NODE and NLP_STE_MAPPED_NODE states, it | |
5880 | * invokes the lpfc_els_rsp_reject() routine to send reject response. | |
5881 | * Otherwise, this routine then invokes the lpfc_els_rsp_rpl_acc() routine | |
5882 | * to accept the RPL. | |
5883 | * | |
5884 | * Return code | |
5885 | * 0 - Successfully processed rpl iocb (currently always return 0) | |
5886 | **/ | |
7bb3b137 | 5887 | static int |
2e0fef85 JS |
5888 | lpfc_els_rcv_rpl(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
5889 | struct lpfc_nodelist *ndlp) | |
7bb3b137 JW |
5890 | { |
5891 | struct lpfc_dmabuf *pcmd; | |
5892 | uint32_t *lp; | |
5893 | uint32_t maxsize; | |
5894 | uint16_t cmdsize; | |
5895 | RPL *rpl; | |
5896 | struct ls_rjt stat; | |
5897 | ||
2fe165b6 JW |
5898 | if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && |
5899 | (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) { | |
90160e01 | 5900 | /* issue rejection response */ |
7bb3b137 JW |
5901 | stat.un.b.lsRjtRsvd0 = 0; |
5902 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
5903 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
5904 | stat.un.b.vendorUnique = 0; | |
858c9f6c JS |
5905 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, |
5906 | NULL); | |
90160e01 JS |
5907 | /* rejected the unsolicited RPL request and done with it */ |
5908 | return 0; | |
7bb3b137 JW |
5909 | } |
5910 | ||
dea3101e JB |
5911 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; |
5912 | lp = (uint32_t *) pcmd->virt; | |
7bb3b137 | 5913 | rpl = (RPL *) (lp + 1); |
7bb3b137 | 5914 | maxsize = be32_to_cpu(rpl->maxsize); |
dea3101e | 5915 | |
7bb3b137 JW |
5916 | /* We support only one port */ |
5917 | if ((rpl->index == 0) && | |
5918 | ((maxsize == 0) || | |
5919 | ((maxsize * sizeof(uint32_t)) >= sizeof(RPL_RSP)))) { | |
5920 | cmdsize = sizeof(uint32_t) + sizeof(RPL_RSP); | |
2fe165b6 | 5921 | } else { |
7bb3b137 JW |
5922 | cmdsize = sizeof(uint32_t) + maxsize * sizeof(uint32_t); |
5923 | } | |
2e0fef85 | 5924 | lpfc_els_rsp_rpl_acc(vport, cmdsize, cmdiocb, ndlp); |
dea3101e JB |
5925 | |
5926 | return 0; | |
5927 | } | |
5928 | ||
e59058c4 | 5929 | /** |
3621a710 | 5930 | * lpfc_els_rcv_farp - Process an unsolicited farp request els command |
e59058c4 JS |
5931 | * @vport: pointer to a virtual N_Port data structure. |
5932 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5933 | * @ndlp: pointer to a node-list data structure. | |
5934 | * | |
5935 | * This routine processes Fibre Channel Address Resolution Protocol | |
5936 | * (FARP) Request IOCB received as an ELS unsolicited event. Currently, | |
5937 | * the lpfc driver only supports matching on WWPN or WWNN for FARP. As such, | |
5938 | * FARP_MATCH_PORT flag and FARP_MATCH_NODE flag are checked against the | |
5939 | * Match Flag in the FARP request IOCB: if FARP_MATCH_PORT flag is set, the | |
5940 | * remote PortName is compared against the FC PortName stored in the @vport | |
5941 | * data structure; if FARP_MATCH_NODE flag is set, the remote NodeName is | |
5942 | * compared against the FC NodeName stored in the @vport data structure. | |
5943 | * If any of these matches and the FARP_REQUEST_FARPR flag is set in the | |
5944 | * FARP request IOCB Response Flag, the lpfc_issue_els_farpr() routine is | |
5945 | * invoked to send out FARP Response to the remote node. Before sending the | |
5946 | * FARP Response, however, the FARP_REQUEST_PLOGI flag is check in the FARP | |
5947 | * request IOCB Response Flag and, if it is set, the lpfc_issue_els_plogi() | |
5948 | * routine is invoked to log into the remote port first. | |
5949 | * | |
5950 | * Return code | |
5951 | * 0 - Either the FARP Match Mode not supported or successfully processed | |
5952 | **/ | |
dea3101e | 5953 | static int |
2e0fef85 JS |
5954 | lpfc_els_rcv_farp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
5955 | struct lpfc_nodelist *ndlp) | |
dea3101e JB |
5956 | { |
5957 | struct lpfc_dmabuf *pcmd; | |
5958 | uint32_t *lp; | |
5959 | IOCB_t *icmd; | |
5960 | FARP *fp; | |
5961 | uint32_t cmd, cnt, did; | |
5962 | ||
5963 | icmd = &cmdiocb->iocb; | |
5964 | did = icmd->un.elsreq64.remoteID; | |
5965 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
5966 | lp = (uint32_t *) pcmd->virt; | |
5967 | ||
5968 | cmd = *lp++; | |
5969 | fp = (FARP *) lp; | |
dea3101e | 5970 | /* FARP-REQ received from DID <did> */ |
e8b62011 JS |
5971 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
5972 | "0601 FARP-REQ received from DID x%x\n", did); | |
dea3101e JB |
5973 | /* We will only support match on WWPN or WWNN */ |
5974 | if (fp->Mflags & ~(FARP_MATCH_NODE | FARP_MATCH_PORT)) { | |
c9f8735b | 5975 | return 0; |
dea3101e JB |
5976 | } |
5977 | ||
5978 | cnt = 0; | |
5979 | /* If this FARP command is searching for my portname */ | |
5980 | if (fp->Mflags & FARP_MATCH_PORT) { | |
2e0fef85 | 5981 | if (memcmp(&fp->RportName, &vport->fc_portname, |
92d7f7b0 | 5982 | sizeof(struct lpfc_name)) == 0) |
dea3101e JB |
5983 | cnt = 1; |
5984 | } | |
5985 | ||
5986 | /* If this FARP command is searching for my nodename */ | |
5987 | if (fp->Mflags & FARP_MATCH_NODE) { | |
2e0fef85 | 5988 | if (memcmp(&fp->RnodeName, &vport->fc_nodename, |
92d7f7b0 | 5989 | sizeof(struct lpfc_name)) == 0) |
dea3101e JB |
5990 | cnt = 1; |
5991 | } | |
5992 | ||
5993 | if (cnt) { | |
5994 | if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) || | |
5995 | (ndlp->nlp_state == NLP_STE_MAPPED_NODE)) { | |
5996 | /* Log back into the node before sending the FARP. */ | |
5997 | if (fp->Rflags & FARP_REQUEST_PLOGI) { | |
5024ab17 | 5998 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 5999 | lpfc_nlp_set_state(vport, ndlp, |
de0c5b32 | 6000 | NLP_STE_PLOGI_ISSUE); |
2e0fef85 | 6001 | lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); |
dea3101e JB |
6002 | } |
6003 | ||
6004 | /* Send a FARP response to that node */ | |
2e0fef85 JS |
6005 | if (fp->Rflags & FARP_REQUEST_FARPR) |
6006 | lpfc_issue_els_farpr(vport, did, 0); | |
dea3101e JB |
6007 | } |
6008 | } | |
c9f8735b | 6009 | return 0; |
dea3101e JB |
6010 | } |
6011 | ||
e59058c4 | 6012 | /** |
3621a710 | 6013 | * lpfc_els_rcv_farpr - Process an unsolicited farp response iocb |
e59058c4 JS |
6014 | * @vport: pointer to a host virtual N_Port data structure. |
6015 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
6016 | * @ndlp: pointer to a node-list data structure. | |
6017 | * | |
6018 | * This routine processes Fibre Channel Address Resolution Protocol | |
6019 | * Response (FARPR) IOCB received as an ELS unsolicited event. It simply | |
6020 | * invokes the lpfc_els_rsp_acc() routine to the remote node to accept | |
6021 | * the FARP response request. | |
6022 | * | |
6023 | * Return code | |
6024 | * 0 - Successfully processed FARPR IOCB (currently always return 0) | |
6025 | **/ | |
dea3101e | 6026 | static int |
2e0fef85 JS |
6027 | lpfc_els_rcv_farpr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
6028 | struct lpfc_nodelist *ndlp) | |
dea3101e JB |
6029 | { |
6030 | struct lpfc_dmabuf *pcmd; | |
6031 | uint32_t *lp; | |
6032 | IOCB_t *icmd; | |
6033 | uint32_t cmd, did; | |
6034 | ||
6035 | icmd = &cmdiocb->iocb; | |
6036 | did = icmd->un.elsreq64.remoteID; | |
6037 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
6038 | lp = (uint32_t *) pcmd->virt; | |
6039 | ||
6040 | cmd = *lp++; | |
6041 | /* FARP-RSP received from DID <did> */ | |
e8b62011 JS |
6042 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
6043 | "0600 FARP-RSP received from DID x%x\n", did); | |
dea3101e | 6044 | /* ACCEPT the Farp resp request */ |
51ef4c26 | 6045 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
dea3101e JB |
6046 | |
6047 | return 0; | |
6048 | } | |
6049 | ||
e59058c4 | 6050 | /** |
3621a710 | 6051 | * lpfc_els_rcv_fan - Process an unsolicited fan iocb command |
e59058c4 JS |
6052 | * @vport: pointer to a host virtual N_Port data structure. |
6053 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
6054 | * @fan_ndlp: pointer to a node-list data structure. | |
6055 | * | |
6056 | * This routine processes a Fabric Address Notification (FAN) IOCB | |
6057 | * command received as an ELS unsolicited event. The FAN ELS command will | |
6058 | * only be processed on a physical port (i.e., the @vport represents the | |
6059 | * physical port). The fabric NodeName and PortName from the FAN IOCB are | |
6060 | * compared against those in the phba data structure. If any of those is | |
6061 | * different, the lpfc_initial_flogi() routine is invoked to initialize | |
6062 | * Fabric Login (FLOGI) to the fabric to start the discover over. Otherwise, | |
6063 | * if both of those are identical, the lpfc_issue_fabric_reglogin() routine | |
6064 | * is invoked to register login to the fabric. | |
6065 | * | |
6066 | * Return code | |
6067 | * 0 - Successfully processed fan iocb (currently always return 0). | |
6068 | **/ | |
dea3101e | 6069 | static int |
2e0fef85 JS |
6070 | lpfc_els_rcv_fan(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
6071 | struct lpfc_nodelist *fan_ndlp) | |
dea3101e | 6072 | { |
0d2b6b83 | 6073 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 6074 | uint32_t *lp; |
5024ab17 | 6075 | FAN *fp; |
dea3101e | 6076 | |
0d2b6b83 JS |
6077 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0265 FAN received\n"); |
6078 | lp = (uint32_t *)((struct lpfc_dmabuf *)cmdiocb->context2)->virt; | |
6079 | fp = (FAN *) ++lp; | |
5024ab17 | 6080 | /* FAN received; Fan does not have a reply sequence */ |
0d2b6b83 JS |
6081 | if ((vport == phba->pport) && |
6082 | (vport->port_state == LPFC_LOCAL_CFG_LINK)) { | |
5024ab17 | 6083 | if ((memcmp(&phba->fc_fabparam.nodeName, &fp->FnodeName, |
0d2b6b83 | 6084 | sizeof(struct lpfc_name))) || |
5024ab17 | 6085 | (memcmp(&phba->fc_fabparam.portName, &fp->FportName, |
0d2b6b83 JS |
6086 | sizeof(struct lpfc_name)))) { |
6087 | /* This port has switched fabrics. FLOGI is required */ | |
76a95d75 | 6088 | lpfc_issue_init_vfi(vport); |
0d2b6b83 JS |
6089 | } else { |
6090 | /* FAN verified - skip FLOGI */ | |
6091 | vport->fc_myDID = vport->fc_prevDID; | |
6fb120a7 JS |
6092 | if (phba->sli_rev < LPFC_SLI_REV4) |
6093 | lpfc_issue_fabric_reglogin(vport); | |
1b51197d JS |
6094 | else { |
6095 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
6096 | "3138 Need register VFI: (x%x/%x)\n", | |
6097 | vport->fc_prevDID, vport->fc_myDID); | |
6fb120a7 | 6098 | lpfc_issue_reg_vfi(vport); |
1b51197d | 6099 | } |
5024ab17 | 6100 | } |
dea3101e | 6101 | } |
c9f8735b | 6102 | return 0; |
dea3101e JB |
6103 | } |
6104 | ||
e59058c4 | 6105 | /** |
3621a710 | 6106 | * lpfc_els_timeout - Handler funciton to the els timer |
e59058c4 JS |
6107 | * @ptr: holder for the timer function associated data. |
6108 | * | |
6109 | * This routine is invoked by the ELS timer after timeout. It posts the ELS | |
6110 | * timer timeout event by setting the WORKER_ELS_TMO bit to the work port | |
6111 | * event bitmap and then invokes the lpfc_worker_wake_up() routine to wake | |
6112 | * up the worker thread. It is for the worker thread to invoke the routine | |
6113 | * lpfc_els_timeout_handler() to work on the posted event WORKER_ELS_TMO. | |
6114 | **/ | |
dea3101e JB |
6115 | void |
6116 | lpfc_els_timeout(unsigned long ptr) | |
6117 | { | |
2e0fef85 JS |
6118 | struct lpfc_vport *vport = (struct lpfc_vport *) ptr; |
6119 | struct lpfc_hba *phba = vport->phba; | |
5e9d9b82 | 6120 | uint32_t tmo_posted; |
dea3101e JB |
6121 | unsigned long iflag; |
6122 | ||
2e0fef85 | 6123 | spin_lock_irqsave(&vport->work_port_lock, iflag); |
5e9d9b82 JS |
6124 | tmo_posted = vport->work_port_events & WORKER_ELS_TMO; |
6125 | if (!tmo_posted) | |
2e0fef85 | 6126 | vport->work_port_events |= WORKER_ELS_TMO; |
5e9d9b82 | 6127 | spin_unlock_irqrestore(&vport->work_port_lock, iflag); |
92d7f7b0 | 6128 | |
5e9d9b82 JS |
6129 | if (!tmo_posted) |
6130 | lpfc_worker_wake_up(phba); | |
dea3101e JB |
6131 | return; |
6132 | } | |
6133 | ||
2a9bf3d0 | 6134 | |
e59058c4 | 6135 | /** |
3621a710 | 6136 | * lpfc_els_timeout_handler - Process an els timeout event |
e59058c4 JS |
6137 | * @vport: pointer to a virtual N_Port data structure. |
6138 | * | |
6139 | * This routine is the actual handler function that processes an ELS timeout | |
6140 | * event. It walks the ELS ring to get and abort all the IOCBs (except the | |
6141 | * ABORT/CLOSE/FARP/FARPR/FDISC), which are associated with the @vport by | |
6142 | * invoking the lpfc_sli_issue_abort_iotag() routine. | |
6143 | **/ | |
dea3101e | 6144 | void |
2e0fef85 | 6145 | lpfc_els_timeout_handler(struct lpfc_vport *vport) |
dea3101e | 6146 | { |
2e0fef85 | 6147 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
6148 | struct lpfc_sli_ring *pring; |
6149 | struct lpfc_iocbq *tmp_iocb, *piocb; | |
6150 | IOCB_t *cmd = NULL; | |
6151 | struct lpfc_dmabuf *pcmd; | |
2e0fef85 | 6152 | uint32_t els_command = 0; |
dea3101e | 6153 | uint32_t timeout; |
2e0fef85 | 6154 | uint32_t remote_ID = 0xffffffff; |
2a9bf3d0 JS |
6155 | LIST_HEAD(txcmplq_completions); |
6156 | LIST_HEAD(abort_list); | |
6157 | ||
dea3101e | 6158 | |
dea3101e JB |
6159 | timeout = (uint32_t)(phba->fc_ratov << 1); |
6160 | ||
6161 | pring = &phba->sli.ring[LPFC_ELS_RING]; | |
dea3101e | 6162 | |
2a9bf3d0 JS |
6163 | spin_lock_irq(&phba->hbalock); |
6164 | list_splice_init(&pring->txcmplq, &txcmplq_completions); | |
6165 | spin_unlock_irq(&phba->hbalock); | |
6166 | ||
6167 | list_for_each_entry_safe(piocb, tmp_iocb, &txcmplq_completions, list) { | |
dea3101e JB |
6168 | cmd = &piocb->iocb; |
6169 | ||
2e0fef85 JS |
6170 | if ((piocb->iocb_flag & LPFC_IO_LIBDFC) != 0 || |
6171 | piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN || | |
6172 | piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN) | |
dea3101e | 6173 | continue; |
2e0fef85 JS |
6174 | |
6175 | if (piocb->vport != vport) | |
6176 | continue; | |
6177 | ||
dea3101e | 6178 | pcmd = (struct lpfc_dmabuf *) piocb->context2; |
2e0fef85 JS |
6179 | if (pcmd) |
6180 | els_command = *(uint32_t *) (pcmd->virt); | |
dea3101e | 6181 | |
92d7f7b0 JS |
6182 | if (els_command == ELS_CMD_FARP || |
6183 | els_command == ELS_CMD_FARPR || | |
6184 | els_command == ELS_CMD_FDISC) | |
6185 | continue; | |
6186 | ||
dea3101e | 6187 | if (piocb->drvrTimeout > 0) { |
92d7f7b0 | 6188 | if (piocb->drvrTimeout >= timeout) |
dea3101e | 6189 | piocb->drvrTimeout -= timeout; |
92d7f7b0 | 6190 | else |
dea3101e | 6191 | piocb->drvrTimeout = 0; |
dea3101e JB |
6192 | continue; |
6193 | } | |
6194 | ||
2e0fef85 JS |
6195 | remote_ID = 0xffffffff; |
6196 | if (cmd->ulpCommand != CMD_GEN_REQUEST64_CR) | |
dea3101e | 6197 | remote_ID = cmd->un.elsreq64.remoteID; |
2e0fef85 JS |
6198 | else { |
6199 | struct lpfc_nodelist *ndlp; | |
6200 | ndlp = __lpfc_findnode_rpi(vport, cmd->ulpContext); | |
58da1ffb | 6201 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) |
2e0fef85 | 6202 | remote_ID = ndlp->nlp_DID; |
dea3101e | 6203 | } |
2a9bf3d0 JS |
6204 | list_add_tail(&piocb->dlist, &abort_list); |
6205 | } | |
6206 | spin_lock_irq(&phba->hbalock); | |
6207 | list_splice(&txcmplq_completions, &pring->txcmplq); | |
6208 | spin_unlock_irq(&phba->hbalock); | |
6209 | ||
6210 | list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) { | |
e8b62011 | 6211 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
2a9bf3d0 JS |
6212 | "0127 ELS timeout Data: x%x x%x x%x " |
6213 | "x%x\n", els_command, | |
6214 | remote_ID, cmd->ulpCommand, cmd->ulpIoTag); | |
6215 | spin_lock_irq(&phba->hbalock); | |
6216 | list_del_init(&piocb->dlist); | |
07951076 | 6217 | lpfc_sli_issue_abort_iotag(phba, pring, piocb); |
2a9bf3d0 | 6218 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 6219 | } |
5a0e326d | 6220 | |
2e0fef85 JS |
6221 | if (phba->sli.ring[LPFC_ELS_RING].txcmplq_cnt) |
6222 | mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout); | |
dea3101e JB |
6223 | } |
6224 | ||
e59058c4 | 6225 | /** |
3621a710 | 6226 | * lpfc_els_flush_cmd - Clean up the outstanding els commands to a vport |
e59058c4 JS |
6227 | * @vport: pointer to a host virtual N_Port data structure. |
6228 | * | |
6229 | * This routine is used to clean up all the outstanding ELS commands on a | |
6230 | * @vport. It first aborts the @vport by invoking lpfc_fabric_abort_vport() | |
6231 | * routine. After that, it walks the ELS transmit queue to remove all the | |
6232 | * IOCBs with the @vport other than the QUE_RING and ABORT/CLOSE IOCBs. For | |
6233 | * the IOCBs with a non-NULL completion callback function, the callback | |
6234 | * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and | |
6235 | * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs with a NULL completion | |
6236 | * callback function, the IOCB will simply be released. Finally, it walks | |
6237 | * the ELS transmit completion queue to issue an abort IOCB to any transmit | |
6238 | * completion queue IOCB that is associated with the @vport and is not | |
6239 | * an IOCB from libdfc (i.e., the management plane IOCBs that are not | |
6240 | * part of the discovery state machine) out to HBA by invoking the | |
6241 | * lpfc_sli_issue_abort_iotag() routine. Note that this function issues the | |
6242 | * abort IOCB to any transmit completion queueed IOCB, it does not guarantee | |
6243 | * the IOCBs are aborted when this function returns. | |
6244 | **/ | |
dea3101e | 6245 | void |
2e0fef85 | 6246 | lpfc_els_flush_cmd(struct lpfc_vport *vport) |
dea3101e | 6247 | { |
2534ba75 | 6248 | LIST_HEAD(completions); |
2e0fef85 | 6249 | struct lpfc_hba *phba = vport->phba; |
329f9bc7 | 6250 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; |
dea3101e JB |
6251 | struct lpfc_iocbq *tmp_iocb, *piocb; |
6252 | IOCB_t *cmd = NULL; | |
92d7f7b0 JS |
6253 | |
6254 | lpfc_fabric_abort_vport(vport); | |
dea3101e | 6255 | |
2e0fef85 | 6256 | spin_lock_irq(&phba->hbalock); |
dea3101e JB |
6257 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) { |
6258 | cmd = &piocb->iocb; | |
6259 | ||
6260 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) { | |
6261 | continue; | |
6262 | } | |
6263 | ||
6264 | /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */ | |
329f9bc7 JS |
6265 | if (cmd->ulpCommand == CMD_QUE_RING_BUF_CN || |
6266 | cmd->ulpCommand == CMD_QUE_RING_BUF64_CN || | |
6267 | cmd->ulpCommand == CMD_CLOSE_XRI_CN || | |
6268 | cmd->ulpCommand == CMD_ABORT_XRI_CN) | |
dea3101e | 6269 | continue; |
dea3101e | 6270 | |
2e0fef85 JS |
6271 | if (piocb->vport != vport) |
6272 | continue; | |
6273 | ||
2534ba75 | 6274 | list_move_tail(&piocb->list, &completions); |
1dcb58e5 | 6275 | pring->txq_cnt--; |
dea3101e JB |
6276 | } |
6277 | ||
6278 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { | |
dea3101e JB |
6279 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) { |
6280 | continue; | |
6281 | } | |
dea3101e | 6282 | |
2e0fef85 JS |
6283 | if (piocb->vport != vport) |
6284 | continue; | |
6285 | ||
07951076 | 6286 | lpfc_sli_issue_abort_iotag(phba, pring, piocb); |
dea3101e | 6287 | } |
2e0fef85 | 6288 | spin_unlock_irq(&phba->hbalock); |
2534ba75 | 6289 | |
a257bf90 JS |
6290 | /* Cancell all the IOCBs from the completions list */ |
6291 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
6292 | IOERR_SLI_ABORTED); | |
2534ba75 | 6293 | |
dea3101e JB |
6294 | return; |
6295 | } | |
6296 | ||
e59058c4 | 6297 | /** |
3621a710 | 6298 | * lpfc_els_flush_all_cmd - Clean up all the outstanding els commands to a HBA |
e59058c4 JS |
6299 | * @phba: pointer to lpfc hba data structure. |
6300 | * | |
6301 | * This routine is used to clean up all the outstanding ELS commands on a | |
6302 | * @phba. It first aborts the @phba by invoking the lpfc_fabric_abort_hba() | |
6303 | * routine. After that, it walks the ELS transmit queue to remove all the | |
6304 | * IOCBs to the @phba other than the QUE_RING and ABORT/CLOSE IOCBs. For | |
6305 | * the IOCBs with the completion callback function associated, the callback | |
6306 | * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and | |
6307 | * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs without the completion | |
6308 | * callback function associated, the IOCB will simply be released. Finally, | |
6309 | * it walks the ELS transmit completion queue to issue an abort IOCB to any | |
6310 | * transmit completion queue IOCB that is not an IOCB from libdfc (i.e., the | |
6311 | * management plane IOCBs that are not part of the discovery state machine) | |
6312 | * out to HBA by invoking the lpfc_sli_issue_abort_iotag() routine. | |
6313 | **/ | |
549e55cd JS |
6314 | void |
6315 | lpfc_els_flush_all_cmd(struct lpfc_hba *phba) | |
6316 | { | |
6317 | LIST_HEAD(completions); | |
6318 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; | |
6319 | struct lpfc_iocbq *tmp_iocb, *piocb; | |
6320 | IOCB_t *cmd = NULL; | |
6321 | ||
6322 | lpfc_fabric_abort_hba(phba); | |
6323 | spin_lock_irq(&phba->hbalock); | |
6324 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) { | |
6325 | cmd = &piocb->iocb; | |
6326 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) | |
6327 | continue; | |
6328 | /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */ | |
6329 | if (cmd->ulpCommand == CMD_QUE_RING_BUF_CN || | |
6330 | cmd->ulpCommand == CMD_QUE_RING_BUF64_CN || | |
6331 | cmd->ulpCommand == CMD_CLOSE_XRI_CN || | |
6332 | cmd->ulpCommand == CMD_ABORT_XRI_CN) | |
6333 | continue; | |
6334 | list_move_tail(&piocb->list, &completions); | |
6335 | pring->txq_cnt--; | |
6336 | } | |
6337 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { | |
6338 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) | |
6339 | continue; | |
6340 | lpfc_sli_issue_abort_iotag(phba, pring, piocb); | |
6341 | } | |
6342 | spin_unlock_irq(&phba->hbalock); | |
a257bf90 JS |
6343 | |
6344 | /* Cancel all the IOCBs from the completions list */ | |
6345 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
6346 | IOERR_SLI_ABORTED); | |
6347 | ||
549e55cd JS |
6348 | return; |
6349 | } | |
6350 | ||
ea2151b4 | 6351 | /** |
3621a710 | 6352 | * lpfc_send_els_failure_event - Posts an ELS command failure event |
ea2151b4 JS |
6353 | * @phba: Pointer to hba context object. |
6354 | * @cmdiocbp: Pointer to command iocb which reported error. | |
6355 | * @rspiocbp: Pointer to response iocb which reported error. | |
6356 | * | |
6357 | * This function sends an event when there is an ELS command | |
6358 | * failure. | |
6359 | **/ | |
6360 | void | |
6361 | lpfc_send_els_failure_event(struct lpfc_hba *phba, | |
6362 | struct lpfc_iocbq *cmdiocbp, | |
6363 | struct lpfc_iocbq *rspiocbp) | |
6364 | { | |
6365 | struct lpfc_vport *vport = cmdiocbp->vport; | |
6366 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
6367 | struct lpfc_lsrjt_event lsrjt_event; | |
6368 | struct lpfc_fabric_event_header fabric_event; | |
6369 | struct ls_rjt stat; | |
6370 | struct lpfc_nodelist *ndlp; | |
6371 | uint32_t *pcmd; | |
6372 | ||
6373 | ndlp = cmdiocbp->context1; | |
6374 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) | |
6375 | return; | |
6376 | ||
6377 | if (rspiocbp->iocb.ulpStatus == IOSTAT_LS_RJT) { | |
6378 | lsrjt_event.header.event_type = FC_REG_ELS_EVENT; | |
6379 | lsrjt_event.header.subcategory = LPFC_EVENT_LSRJT_RCV; | |
6380 | memcpy(lsrjt_event.header.wwpn, &ndlp->nlp_portname, | |
6381 | sizeof(struct lpfc_name)); | |
6382 | memcpy(lsrjt_event.header.wwnn, &ndlp->nlp_nodename, | |
6383 | sizeof(struct lpfc_name)); | |
6384 | pcmd = (uint32_t *) (((struct lpfc_dmabuf *) | |
6385 | cmdiocbp->context2)->virt); | |
49198b37 | 6386 | lsrjt_event.command = (pcmd != NULL) ? *pcmd : 0; |
ea2151b4 JS |
6387 | stat.un.lsRjtError = be32_to_cpu(rspiocbp->iocb.un.ulpWord[4]); |
6388 | lsrjt_event.reason_code = stat.un.b.lsRjtRsnCode; | |
6389 | lsrjt_event.explanation = stat.un.b.lsRjtRsnCodeExp; | |
6390 | fc_host_post_vendor_event(shost, | |
6391 | fc_get_event_number(), | |
6392 | sizeof(lsrjt_event), | |
6393 | (char *)&lsrjt_event, | |
ddcc50f0 | 6394 | LPFC_NL_VENDOR_ID); |
ea2151b4 JS |
6395 | return; |
6396 | } | |
6397 | if ((rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY) || | |
6398 | (rspiocbp->iocb.ulpStatus == IOSTAT_FABRIC_BSY)) { | |
6399 | fabric_event.event_type = FC_REG_FABRIC_EVENT; | |
6400 | if (rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY) | |
6401 | fabric_event.subcategory = LPFC_EVENT_PORT_BUSY; | |
6402 | else | |
6403 | fabric_event.subcategory = LPFC_EVENT_FABRIC_BUSY; | |
6404 | memcpy(fabric_event.wwpn, &ndlp->nlp_portname, | |
6405 | sizeof(struct lpfc_name)); | |
6406 | memcpy(fabric_event.wwnn, &ndlp->nlp_nodename, | |
6407 | sizeof(struct lpfc_name)); | |
6408 | fc_host_post_vendor_event(shost, | |
6409 | fc_get_event_number(), | |
6410 | sizeof(fabric_event), | |
6411 | (char *)&fabric_event, | |
ddcc50f0 | 6412 | LPFC_NL_VENDOR_ID); |
ea2151b4 JS |
6413 | return; |
6414 | } | |
6415 | ||
6416 | } | |
6417 | ||
6418 | /** | |
3621a710 | 6419 | * lpfc_send_els_event - Posts unsolicited els event |
ea2151b4 JS |
6420 | * @vport: Pointer to vport object. |
6421 | * @ndlp: Pointer FC node object. | |
6422 | * @cmd: ELS command code. | |
6423 | * | |
6424 | * This function posts an event when there is an incoming | |
6425 | * unsolicited ELS command. | |
6426 | **/ | |
6427 | static void | |
6428 | lpfc_send_els_event(struct lpfc_vport *vport, | |
6429 | struct lpfc_nodelist *ndlp, | |
ddcc50f0 | 6430 | uint32_t *payload) |
ea2151b4 | 6431 | { |
ddcc50f0 JS |
6432 | struct lpfc_els_event_header *els_data = NULL; |
6433 | struct lpfc_logo_event *logo_data = NULL; | |
ea2151b4 JS |
6434 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
6435 | ||
ddcc50f0 JS |
6436 | if (*payload == ELS_CMD_LOGO) { |
6437 | logo_data = kmalloc(sizeof(struct lpfc_logo_event), GFP_KERNEL); | |
6438 | if (!logo_data) { | |
6439 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
6440 | "0148 Failed to allocate memory " | |
6441 | "for LOGO event\n"); | |
6442 | return; | |
6443 | } | |
6444 | els_data = &logo_data->header; | |
6445 | } else { | |
6446 | els_data = kmalloc(sizeof(struct lpfc_els_event_header), | |
6447 | GFP_KERNEL); | |
6448 | if (!els_data) { | |
6449 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
6450 | "0149 Failed to allocate memory " | |
6451 | "for ELS event\n"); | |
6452 | return; | |
6453 | } | |
6454 | } | |
6455 | els_data->event_type = FC_REG_ELS_EVENT; | |
6456 | switch (*payload) { | |
ea2151b4 | 6457 | case ELS_CMD_PLOGI: |
ddcc50f0 | 6458 | els_data->subcategory = LPFC_EVENT_PLOGI_RCV; |
ea2151b4 JS |
6459 | break; |
6460 | case ELS_CMD_PRLO: | |
ddcc50f0 | 6461 | els_data->subcategory = LPFC_EVENT_PRLO_RCV; |
ea2151b4 JS |
6462 | break; |
6463 | case ELS_CMD_ADISC: | |
ddcc50f0 JS |
6464 | els_data->subcategory = LPFC_EVENT_ADISC_RCV; |
6465 | break; | |
6466 | case ELS_CMD_LOGO: | |
6467 | els_data->subcategory = LPFC_EVENT_LOGO_RCV; | |
6468 | /* Copy the WWPN in the LOGO payload */ | |
6469 | memcpy(logo_data->logo_wwpn, &payload[2], | |
6470 | sizeof(struct lpfc_name)); | |
ea2151b4 JS |
6471 | break; |
6472 | default: | |
e916141c | 6473 | kfree(els_data); |
ea2151b4 JS |
6474 | return; |
6475 | } | |
ddcc50f0 JS |
6476 | memcpy(els_data->wwpn, &ndlp->nlp_portname, sizeof(struct lpfc_name)); |
6477 | memcpy(els_data->wwnn, &ndlp->nlp_nodename, sizeof(struct lpfc_name)); | |
6478 | if (*payload == ELS_CMD_LOGO) { | |
6479 | fc_host_post_vendor_event(shost, | |
6480 | fc_get_event_number(), | |
6481 | sizeof(struct lpfc_logo_event), | |
6482 | (char *)logo_data, | |
6483 | LPFC_NL_VENDOR_ID); | |
6484 | kfree(logo_data); | |
6485 | } else { | |
6486 | fc_host_post_vendor_event(shost, | |
6487 | fc_get_event_number(), | |
6488 | sizeof(struct lpfc_els_event_header), | |
6489 | (char *)els_data, | |
6490 | LPFC_NL_VENDOR_ID); | |
6491 | kfree(els_data); | |
6492 | } | |
ea2151b4 JS |
6493 | |
6494 | return; | |
6495 | } | |
6496 | ||
6497 | ||
e59058c4 | 6498 | /** |
3621a710 | 6499 | * lpfc_els_unsol_buffer - Process an unsolicited event data buffer |
e59058c4 JS |
6500 | * @phba: pointer to lpfc hba data structure. |
6501 | * @pring: pointer to a SLI ring. | |
6502 | * @vport: pointer to a host virtual N_Port data structure. | |
6503 | * @elsiocb: pointer to lpfc els command iocb data structure. | |
6504 | * | |
6505 | * This routine is used for processing the IOCB associated with a unsolicited | |
6506 | * event. It first determines whether there is an existing ndlp that matches | |
6507 | * the DID from the unsolicited IOCB. If not, it will create a new one with | |
6508 | * the DID from the unsolicited IOCB. The ELS command from the unsolicited | |
6509 | * IOCB is then used to invoke the proper routine and to set up proper state | |
6510 | * of the discovery state machine. | |
6511 | **/ | |
ed957684 JS |
6512 | static void |
6513 | lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
92d7f7b0 | 6514 | struct lpfc_vport *vport, struct lpfc_iocbq *elsiocb) |
dea3101e | 6515 | { |
87af33fe | 6516 | struct Scsi_Host *shost; |
dea3101e | 6517 | struct lpfc_nodelist *ndlp; |
dea3101e | 6518 | struct ls_rjt stat; |
92d7f7b0 | 6519 | uint32_t *payload; |
2e0fef85 | 6520 | uint32_t cmd, did, newnode, rjt_err = 0; |
ed957684 | 6521 | IOCB_t *icmd = &elsiocb->iocb; |
dea3101e | 6522 | |
e47c9093 | 6523 | if (!vport || !(elsiocb->context2)) |
dea3101e | 6524 | goto dropit; |
2e0fef85 | 6525 | |
dea3101e | 6526 | newnode = 0; |
92d7f7b0 JS |
6527 | payload = ((struct lpfc_dmabuf *)elsiocb->context2)->virt; |
6528 | cmd = *payload; | |
ed957684 | 6529 | if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) == 0) |
495a714c | 6530 | lpfc_post_buffer(phba, pring, 1); |
dea3101e | 6531 | |
858c9f6c JS |
6532 | did = icmd->un.rcvels.remoteID; |
6533 | if (icmd->ulpStatus) { | |
6534 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, | |
6535 | "RCV Unsol ELS: status:x%x/x%x did:x%x", | |
6536 | icmd->ulpStatus, icmd->un.ulpWord[4], did); | |
dea3101e | 6537 | goto dropit; |
858c9f6c | 6538 | } |
dea3101e JB |
6539 | |
6540 | /* Check to see if link went down during discovery */ | |
ed957684 | 6541 | if (lpfc_els_chk_latt(vport)) |
dea3101e | 6542 | goto dropit; |
dea3101e | 6543 | |
c868595d | 6544 | /* Ignore traffic received during vport shutdown. */ |
92d7f7b0 JS |
6545 | if (vport->load_flag & FC_UNLOADING) |
6546 | goto dropit; | |
6547 | ||
92494144 JS |
6548 | /* If NPort discovery is delayed drop incoming ELS */ |
6549 | if ((vport->fc_flag & FC_DISC_DELAYED) && | |
6550 | (cmd != ELS_CMD_PLOGI)) | |
6551 | goto dropit; | |
6552 | ||
2e0fef85 | 6553 | ndlp = lpfc_findnode_did(vport, did); |
c9f8735b | 6554 | if (!ndlp) { |
dea3101e | 6555 | /* Cannot find existing Fabric ndlp, so allocate a new one */ |
c9f8735b | 6556 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); |
ed957684 | 6557 | if (!ndlp) |
dea3101e | 6558 | goto dropit; |
dea3101e | 6559 | |
2e0fef85 | 6560 | lpfc_nlp_init(vport, ndlp, did); |
98c9ea5c | 6561 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
dea3101e | 6562 | newnode = 1; |
e47c9093 | 6563 | if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) |
dea3101e | 6564 | ndlp->nlp_type |= NLP_FABRIC; |
58da1ffb JS |
6565 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { |
6566 | ndlp = lpfc_enable_node(vport, ndlp, | |
6567 | NLP_STE_UNUSED_NODE); | |
6568 | if (!ndlp) | |
6569 | goto dropit; | |
6570 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); | |
6571 | newnode = 1; | |
6572 | if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) | |
6573 | ndlp->nlp_type |= NLP_FABRIC; | |
6574 | } else if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) { | |
6575 | /* This is similar to the new node path */ | |
6576 | ndlp = lpfc_nlp_get(ndlp); | |
6577 | if (!ndlp) | |
6578 | goto dropit; | |
6579 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); | |
6580 | newnode = 1; | |
87af33fe | 6581 | } |
dea3101e JB |
6582 | |
6583 | phba->fc_stat.elsRcvFrame++; | |
e47c9093 | 6584 | |
329f9bc7 | 6585 | elsiocb->context1 = lpfc_nlp_get(ndlp); |
2e0fef85 | 6586 | elsiocb->vport = vport; |
dea3101e JB |
6587 | |
6588 | if ((cmd & ELS_CMD_MASK) == ELS_CMD_RSCN) { | |
6589 | cmd &= ELS_CMD_MASK; | |
6590 | } | |
6591 | /* ELS command <elsCmd> received from NPORT <did> */ | |
e8b62011 JS |
6592 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
6593 | "0112 ELS command x%x received from NPORT x%x " | |
6594 | "Data: x%x\n", cmd, did, vport->port_state); | |
dea3101e JB |
6595 | switch (cmd) { |
6596 | case ELS_CMD_PLOGI: | |
858c9f6c JS |
6597 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6598 | "RCV PLOGI: did:x%x/ste:x%x flg:x%x", | |
6599 | did, vport->port_state, ndlp->nlp_flag); | |
6600 | ||
dea3101e | 6601 | phba->fc_stat.elsRcvPLOGI++; |
858c9f6c JS |
6602 | ndlp = lpfc_plogi_confirm_nport(phba, payload, ndlp); |
6603 | ||
ddcc50f0 | 6604 | lpfc_send_els_event(vport, ndlp, payload); |
92494144 JS |
6605 | |
6606 | /* If Nport discovery is delayed, reject PLOGIs */ | |
6607 | if (vport->fc_flag & FC_DISC_DELAYED) { | |
6608 | rjt_err = LSRJT_UNABLE_TPC; | |
6609 | break; | |
6610 | } | |
858c9f6c | 6611 | if (vport->port_state < LPFC_DISC_AUTH) { |
1b32f6aa JS |
6612 | if (!(phba->pport->fc_flag & FC_PT2PT) || |
6613 | (phba->pport->fc_flag & FC_PT2PT_PLOGI)) { | |
6614 | rjt_err = LSRJT_UNABLE_TPC; | |
6615 | break; | |
6616 | } | |
6617 | /* We get here, and drop thru, if we are PT2PT with | |
6618 | * another NPort and the other side has initiated | |
6619 | * the PLOGI before responding to our FLOGI. | |
6620 | */ | |
dea3101e | 6621 | } |
87af33fe JS |
6622 | |
6623 | shost = lpfc_shost_from_vport(vport); | |
6624 | spin_lock_irq(shost->host_lock); | |
6625 | ndlp->nlp_flag &= ~NLP_TARGET_REMOVE; | |
6626 | spin_unlock_irq(shost->host_lock); | |
6627 | ||
2e0fef85 JS |
6628 | lpfc_disc_state_machine(vport, ndlp, elsiocb, |
6629 | NLP_EVT_RCV_PLOGI); | |
858c9f6c | 6630 | |
dea3101e JB |
6631 | break; |
6632 | case ELS_CMD_FLOGI: | |
858c9f6c JS |
6633 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6634 | "RCV FLOGI: did:x%x/ste:x%x flg:x%x", | |
6635 | did, vport->port_state, ndlp->nlp_flag); | |
6636 | ||
dea3101e | 6637 | phba->fc_stat.elsRcvFLOGI++; |
51ef4c26 | 6638 | lpfc_els_rcv_flogi(vport, elsiocb, ndlp); |
87af33fe | 6639 | if (newnode) |
98c9ea5c | 6640 | lpfc_nlp_put(ndlp); |
dea3101e JB |
6641 | break; |
6642 | case ELS_CMD_LOGO: | |
858c9f6c JS |
6643 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6644 | "RCV LOGO: did:x%x/ste:x%x flg:x%x", | |
6645 | did, vport->port_state, ndlp->nlp_flag); | |
6646 | ||
dea3101e | 6647 | phba->fc_stat.elsRcvLOGO++; |
ddcc50f0 | 6648 | lpfc_send_els_event(vport, ndlp, payload); |
2e0fef85 | 6649 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 6650 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e JB |
6651 | break; |
6652 | } | |
2e0fef85 | 6653 | lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_LOGO); |
dea3101e JB |
6654 | break; |
6655 | case ELS_CMD_PRLO: | |
858c9f6c JS |
6656 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6657 | "RCV PRLO: did:x%x/ste:x%x flg:x%x", | |
6658 | did, vport->port_state, ndlp->nlp_flag); | |
6659 | ||
dea3101e | 6660 | phba->fc_stat.elsRcvPRLO++; |
ddcc50f0 | 6661 | lpfc_send_els_event(vport, ndlp, payload); |
2e0fef85 | 6662 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 6663 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e JB |
6664 | break; |
6665 | } | |
2e0fef85 | 6666 | lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLO); |
dea3101e JB |
6667 | break; |
6668 | case ELS_CMD_RSCN: | |
6669 | phba->fc_stat.elsRcvRSCN++; | |
51ef4c26 | 6670 | lpfc_els_rcv_rscn(vport, elsiocb, ndlp); |
87af33fe | 6671 | if (newnode) |
98c9ea5c | 6672 | lpfc_nlp_put(ndlp); |
dea3101e JB |
6673 | break; |
6674 | case ELS_CMD_ADISC: | |
858c9f6c JS |
6675 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6676 | "RCV ADISC: did:x%x/ste:x%x flg:x%x", | |
6677 | did, vport->port_state, ndlp->nlp_flag); | |
6678 | ||
ddcc50f0 | 6679 | lpfc_send_els_event(vport, ndlp, payload); |
dea3101e | 6680 | phba->fc_stat.elsRcvADISC++; |
2e0fef85 | 6681 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 6682 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e JB |
6683 | break; |
6684 | } | |
2e0fef85 JS |
6685 | lpfc_disc_state_machine(vport, ndlp, elsiocb, |
6686 | NLP_EVT_RCV_ADISC); | |
dea3101e JB |
6687 | break; |
6688 | case ELS_CMD_PDISC: | |
858c9f6c JS |
6689 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6690 | "RCV PDISC: did:x%x/ste:x%x flg:x%x", | |
6691 | did, vport->port_state, ndlp->nlp_flag); | |
6692 | ||
dea3101e | 6693 | phba->fc_stat.elsRcvPDISC++; |
2e0fef85 | 6694 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 6695 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e JB |
6696 | break; |
6697 | } | |
2e0fef85 JS |
6698 | lpfc_disc_state_machine(vport, ndlp, elsiocb, |
6699 | NLP_EVT_RCV_PDISC); | |
dea3101e JB |
6700 | break; |
6701 | case ELS_CMD_FARPR: | |
858c9f6c JS |
6702 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6703 | "RCV FARPR: did:x%x/ste:x%x flg:x%x", | |
6704 | did, vport->port_state, ndlp->nlp_flag); | |
6705 | ||
dea3101e | 6706 | phba->fc_stat.elsRcvFARPR++; |
2e0fef85 | 6707 | lpfc_els_rcv_farpr(vport, elsiocb, ndlp); |
dea3101e JB |
6708 | break; |
6709 | case ELS_CMD_FARP: | |
858c9f6c JS |
6710 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6711 | "RCV FARP: did:x%x/ste:x%x flg:x%x", | |
6712 | did, vport->port_state, ndlp->nlp_flag); | |
6713 | ||
dea3101e | 6714 | phba->fc_stat.elsRcvFARP++; |
2e0fef85 | 6715 | lpfc_els_rcv_farp(vport, elsiocb, ndlp); |
dea3101e JB |
6716 | break; |
6717 | case ELS_CMD_FAN: | |
858c9f6c JS |
6718 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6719 | "RCV FAN: did:x%x/ste:x%x flg:x%x", | |
6720 | did, vport->port_state, ndlp->nlp_flag); | |
6721 | ||
dea3101e | 6722 | phba->fc_stat.elsRcvFAN++; |
2e0fef85 | 6723 | lpfc_els_rcv_fan(vport, elsiocb, ndlp); |
dea3101e | 6724 | break; |
dea3101e | 6725 | case ELS_CMD_PRLI: |
858c9f6c JS |
6726 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6727 | "RCV PRLI: did:x%x/ste:x%x flg:x%x", | |
6728 | did, vport->port_state, ndlp->nlp_flag); | |
6729 | ||
dea3101e | 6730 | phba->fc_stat.elsRcvPRLI++; |
2e0fef85 | 6731 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 6732 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e JB |
6733 | break; |
6734 | } | |
2e0fef85 | 6735 | lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLI); |
dea3101e | 6736 | break; |
7bb3b137 | 6737 | case ELS_CMD_LIRR: |
858c9f6c JS |
6738 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6739 | "RCV LIRR: did:x%x/ste:x%x flg:x%x", | |
6740 | did, vport->port_state, ndlp->nlp_flag); | |
6741 | ||
7bb3b137 | 6742 | phba->fc_stat.elsRcvLIRR++; |
2e0fef85 | 6743 | lpfc_els_rcv_lirr(vport, elsiocb, ndlp); |
87af33fe | 6744 | if (newnode) |
98c9ea5c | 6745 | lpfc_nlp_put(ndlp); |
7bb3b137 | 6746 | break; |
12265f68 JS |
6747 | case ELS_CMD_RLS: |
6748 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, | |
6749 | "RCV RLS: did:x%x/ste:x%x flg:x%x", | |
6750 | did, vport->port_state, ndlp->nlp_flag); | |
6751 | ||
6752 | phba->fc_stat.elsRcvRLS++; | |
6753 | lpfc_els_rcv_rls(vport, elsiocb, ndlp); | |
6754 | if (newnode) | |
6755 | lpfc_nlp_put(ndlp); | |
6756 | break; | |
7bb3b137 | 6757 | case ELS_CMD_RPS: |
858c9f6c JS |
6758 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6759 | "RCV RPS: did:x%x/ste:x%x flg:x%x", | |
6760 | did, vport->port_state, ndlp->nlp_flag); | |
6761 | ||
7bb3b137 | 6762 | phba->fc_stat.elsRcvRPS++; |
2e0fef85 | 6763 | lpfc_els_rcv_rps(vport, elsiocb, ndlp); |
87af33fe | 6764 | if (newnode) |
98c9ea5c | 6765 | lpfc_nlp_put(ndlp); |
7bb3b137 JW |
6766 | break; |
6767 | case ELS_CMD_RPL: | |
858c9f6c JS |
6768 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6769 | "RCV RPL: did:x%x/ste:x%x flg:x%x", | |
6770 | did, vport->port_state, ndlp->nlp_flag); | |
6771 | ||
7bb3b137 | 6772 | phba->fc_stat.elsRcvRPL++; |
2e0fef85 | 6773 | lpfc_els_rcv_rpl(vport, elsiocb, ndlp); |
87af33fe | 6774 | if (newnode) |
98c9ea5c | 6775 | lpfc_nlp_put(ndlp); |
7bb3b137 | 6776 | break; |
dea3101e | 6777 | case ELS_CMD_RNID: |
858c9f6c JS |
6778 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6779 | "RCV RNID: did:x%x/ste:x%x flg:x%x", | |
6780 | did, vport->port_state, ndlp->nlp_flag); | |
6781 | ||
dea3101e | 6782 | phba->fc_stat.elsRcvRNID++; |
2e0fef85 | 6783 | lpfc_els_rcv_rnid(vport, elsiocb, ndlp); |
87af33fe | 6784 | if (newnode) |
98c9ea5c | 6785 | lpfc_nlp_put(ndlp); |
dea3101e | 6786 | break; |
12265f68 JS |
6787 | case ELS_CMD_RTV: |
6788 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, | |
6789 | "RCV RTV: did:x%x/ste:x%x flg:x%x", | |
6790 | did, vport->port_state, ndlp->nlp_flag); | |
6791 | phba->fc_stat.elsRcvRTV++; | |
6792 | lpfc_els_rcv_rtv(vport, elsiocb, ndlp); | |
6793 | if (newnode) | |
6794 | lpfc_nlp_put(ndlp); | |
6795 | break; | |
5ffc266e JS |
6796 | case ELS_CMD_RRQ: |
6797 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, | |
6798 | "RCV RRQ: did:x%x/ste:x%x flg:x%x", | |
6799 | did, vport->port_state, ndlp->nlp_flag); | |
6800 | ||
6801 | phba->fc_stat.elsRcvRRQ++; | |
6802 | lpfc_els_rcv_rrq(vport, elsiocb, ndlp); | |
6803 | if (newnode) | |
6804 | lpfc_nlp_put(ndlp); | |
6805 | break; | |
12265f68 JS |
6806 | case ELS_CMD_ECHO: |
6807 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, | |
6808 | "RCV ECHO: did:x%x/ste:x%x flg:x%x", | |
6809 | did, vport->port_state, ndlp->nlp_flag); | |
6810 | ||
6811 | phba->fc_stat.elsRcvECHO++; | |
6812 | lpfc_els_rcv_echo(vport, elsiocb, ndlp); | |
6813 | if (newnode) | |
6814 | lpfc_nlp_put(ndlp); | |
6815 | break; | |
dea3101e | 6816 | default: |
858c9f6c JS |
6817 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6818 | "RCV ELS cmd: cmd:x%x did:x%x/ste:x%x", | |
6819 | cmd, did, vport->port_state); | |
6820 | ||
dea3101e | 6821 | /* Unsupported ELS command, reject */ |
63e801ce | 6822 | rjt_err = LSRJT_CMD_UNSUPPORTED; |
dea3101e JB |
6823 | |
6824 | /* Unknown ELS command <elsCmd> received from NPORT <did> */ | |
e8b62011 JS |
6825 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
6826 | "0115 Unknown ELS command x%x " | |
6827 | "received from NPORT x%x\n", cmd, did); | |
87af33fe | 6828 | if (newnode) |
98c9ea5c | 6829 | lpfc_nlp_put(ndlp); |
dea3101e JB |
6830 | break; |
6831 | } | |
6832 | ||
6833 | /* check if need to LS_RJT received ELS cmd */ | |
6834 | if (rjt_err) { | |
92d7f7b0 | 6835 | memset(&stat, 0, sizeof(stat)); |
858c9f6c | 6836 | stat.un.b.lsRjtRsnCode = rjt_err; |
1f679caf | 6837 | stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; |
858c9f6c JS |
6838 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, elsiocb, ndlp, |
6839 | NULL); | |
dea3101e JB |
6840 | } |
6841 | ||
d7c255b2 JS |
6842 | lpfc_nlp_put(elsiocb->context1); |
6843 | elsiocb->context1 = NULL; | |
ed957684 JS |
6844 | return; |
6845 | ||
6846 | dropit: | |
98c9ea5c | 6847 | if (vport && !(vport->load_flag & FC_UNLOADING)) |
6fb120a7 JS |
6848 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
6849 | "0111 Dropping received ELS cmd " | |
ed957684 | 6850 | "Data: x%x x%x x%x\n", |
6fb120a7 | 6851 | icmd->ulpStatus, icmd->un.ulpWord[4], icmd->ulpTimeout); |
ed957684 JS |
6852 | phba->fc_stat.elsRcvDrop++; |
6853 | } | |
6854 | ||
e59058c4 | 6855 | /** |
3621a710 | 6856 | * lpfc_els_unsol_event - Process an unsolicited event from an els sli ring |
e59058c4 JS |
6857 | * @phba: pointer to lpfc hba data structure. |
6858 | * @pring: pointer to a SLI ring. | |
6859 | * @elsiocb: pointer to lpfc els iocb data structure. | |
6860 | * | |
6861 | * This routine is used to process an unsolicited event received from a SLI | |
6862 | * (Service Level Interface) ring. The actual processing of the data buffer | |
6863 | * associated with the unsolicited event is done by invoking the routine | |
6864 | * lpfc_els_unsol_buffer() after properly set up the iocb buffer from the | |
6865 | * SLI ring on which the unsolicited event was received. | |
6866 | **/ | |
ed957684 JS |
6867 | void |
6868 | lpfc_els_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
6869 | struct lpfc_iocbq *elsiocb) | |
6870 | { | |
6871 | struct lpfc_vport *vport = phba->pport; | |
ed957684 | 6872 | IOCB_t *icmd = &elsiocb->iocb; |
ed957684 | 6873 | dma_addr_t paddr; |
92d7f7b0 JS |
6874 | struct lpfc_dmabuf *bdeBuf1 = elsiocb->context2; |
6875 | struct lpfc_dmabuf *bdeBuf2 = elsiocb->context3; | |
6876 | ||
d7c255b2 | 6877 | elsiocb->context1 = NULL; |
92d7f7b0 JS |
6878 | elsiocb->context2 = NULL; |
6879 | elsiocb->context3 = NULL; | |
ed957684 | 6880 | |
92d7f7b0 JS |
6881 | if (icmd->ulpStatus == IOSTAT_NEED_BUFFER) { |
6882 | lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ); | |
6883 | } else if (icmd->ulpStatus == IOSTAT_LOCAL_REJECT && | |
e3d2b802 JS |
6884 | (icmd->un.ulpWord[4] & IOERR_PARAM_MASK) == |
6885 | IOERR_RCV_BUFFER_WAITING) { | |
ed957684 JS |
6886 | phba->fc_stat.NoRcvBuf++; |
6887 | /* Not enough posted buffers; Try posting more buffers */ | |
92d7f7b0 | 6888 | if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) |
495a714c | 6889 | lpfc_post_buffer(phba, pring, 0); |
ed957684 JS |
6890 | return; |
6891 | } | |
6892 | ||
92d7f7b0 JS |
6893 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && |
6894 | (icmd->ulpCommand == CMD_IOCB_RCV_ELS64_CX || | |
6895 | icmd->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) { | |
6896 | if (icmd->unsli3.rcvsli3.vpi == 0xffff) | |
6897 | vport = phba->pport; | |
6fb120a7 JS |
6898 | else |
6899 | vport = lpfc_find_vport_by_vpid(phba, | |
6d368e53 | 6900 | icmd->unsli3.rcvsli3.vpi); |
92d7f7b0 | 6901 | } |
6d368e53 | 6902 | |
7f5f3d0d JS |
6903 | /* If there are no BDEs associated |
6904 | * with this IOCB, there is nothing to do. | |
6905 | */ | |
ed957684 JS |
6906 | if (icmd->ulpBdeCount == 0) |
6907 | return; | |
6908 | ||
7f5f3d0d JS |
6909 | /* type of ELS cmd is first 32bit word |
6910 | * in packet | |
6911 | */ | |
ed957684 | 6912 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
92d7f7b0 | 6913 | elsiocb->context2 = bdeBuf1; |
ed957684 JS |
6914 | } else { |
6915 | paddr = getPaddr(icmd->un.cont64[0].addrHigh, | |
6916 | icmd->un.cont64[0].addrLow); | |
92d7f7b0 JS |
6917 | elsiocb->context2 = lpfc_sli_ringpostbuf_get(phba, pring, |
6918 | paddr); | |
ed957684 JS |
6919 | } |
6920 | ||
92d7f7b0 JS |
6921 | lpfc_els_unsol_buffer(phba, pring, vport, elsiocb); |
6922 | /* | |
6923 | * The different unsolicited event handlers would tell us | |
6924 | * if they are done with "mp" by setting context2 to NULL. | |
6925 | */ | |
dea3101e | 6926 | if (elsiocb->context2) { |
92d7f7b0 JS |
6927 | lpfc_in_buf_free(phba, (struct lpfc_dmabuf *)elsiocb->context2); |
6928 | elsiocb->context2 = NULL; | |
dea3101e | 6929 | } |
ed957684 JS |
6930 | |
6931 | /* RCV_ELS64_CX provide for 2 BDEs - process 2nd if included */ | |
92d7f7b0 | 6932 | if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) && |
ed957684 | 6933 | icmd->ulpBdeCount == 2) { |
92d7f7b0 JS |
6934 | elsiocb->context2 = bdeBuf2; |
6935 | lpfc_els_unsol_buffer(phba, pring, vport, elsiocb); | |
ed957684 JS |
6936 | /* free mp if we are done with it */ |
6937 | if (elsiocb->context2) { | |
92d7f7b0 JS |
6938 | lpfc_in_buf_free(phba, elsiocb->context2); |
6939 | elsiocb->context2 = NULL; | |
6940 | } | |
6941 | } | |
6942 | } | |
6943 | ||
e59058c4 | 6944 | /** |
3621a710 | 6945 | * lpfc_do_scr_ns_plogi - Issue a plogi to the name server for scr |
e59058c4 JS |
6946 | * @phba: pointer to lpfc hba data structure. |
6947 | * @vport: pointer to a virtual N_Port data structure. | |
6948 | * | |
6949 | * This routine issues a Port Login (PLOGI) to the Name Server with | |
6950 | * State Change Request (SCR) for a @vport. This routine will create an | |
6951 | * ndlp for the Name Server associated to the @vport if such node does | |
6952 | * not already exist. The PLOGI to Name Server is issued by invoking the | |
6953 | * lpfc_issue_els_plogi() routine. If Fabric-Device Management Interface | |
6954 | * (FDMI) is configured to the @vport, a FDMI node will be created and | |
6955 | * the PLOGI to FDMI is issued by invoking lpfc_issue_els_plogi() routine. | |
6956 | **/ | |
92d7f7b0 JS |
6957 | void |
6958 | lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport) | |
6959 | { | |
6960 | struct lpfc_nodelist *ndlp, *ndlp_fdmi; | |
92494144 JS |
6961 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
6962 | ||
6963 | /* | |
6964 | * If lpfc_delay_discovery parameter is set and the clean address | |
6965 | * bit is cleared and fc fabric parameters chenged, delay FC NPort | |
6966 | * discovery. | |
6967 | */ | |
6968 | spin_lock_irq(shost->host_lock); | |
6969 | if (vport->fc_flag & FC_DISC_DELAYED) { | |
6970 | spin_unlock_irq(shost->host_lock); | |
6971 | mod_timer(&vport->delayed_disc_tmo, | |
6972 | jiffies + HZ * phba->fc_ratov); | |
6973 | return; | |
6974 | } | |
6975 | spin_unlock_irq(shost->host_lock); | |
92d7f7b0 JS |
6976 | |
6977 | ndlp = lpfc_findnode_did(vport, NameServer_DID); | |
6978 | if (!ndlp) { | |
6979 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
6980 | if (!ndlp) { | |
76a95d75 | 6981 | if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { |
92d7f7b0 JS |
6982 | lpfc_disc_start(vport); |
6983 | return; | |
6984 | } | |
6985 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
e8b62011 JS |
6986 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
6987 | "0251 NameServer login: no memory\n"); | |
92d7f7b0 JS |
6988 | return; |
6989 | } | |
6990 | lpfc_nlp_init(vport, ndlp, NameServer_DID); | |
e47c9093 JS |
6991 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { |
6992 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
6993 | if (!ndlp) { | |
76a95d75 | 6994 | if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { |
e47c9093 JS |
6995 | lpfc_disc_start(vport); |
6996 | return; | |
6997 | } | |
6998 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
6999 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
7000 | "0348 NameServer login: node freed\n"); | |
7001 | return; | |
7002 | } | |
92d7f7b0 | 7003 | } |
58da1ffb | 7004 | ndlp->nlp_type |= NLP_FABRIC; |
92d7f7b0 JS |
7005 | |
7006 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); | |
7007 | ||
7008 | if (lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0)) { | |
7009 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
e8b62011 JS |
7010 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
7011 | "0252 Cannot issue NameServer login\n"); | |
92d7f7b0 JS |
7012 | return; |
7013 | } | |
7014 | ||
3de2a653 | 7015 | if (vport->cfg_fdmi_on) { |
63e801ce JS |
7016 | /* If this is the first time, allocate an ndlp and initialize |
7017 | * it. Otherwise, make sure the node is enabled and then do the | |
7018 | * login. | |
7019 | */ | |
7020 | ndlp_fdmi = lpfc_findnode_did(vport, FDMI_DID); | |
7021 | if (!ndlp_fdmi) { | |
7022 | ndlp_fdmi = mempool_alloc(phba->nlp_mem_pool, | |
7023 | GFP_KERNEL); | |
7024 | if (ndlp_fdmi) { | |
7025 | lpfc_nlp_init(vport, ndlp_fdmi, FDMI_DID); | |
7026 | ndlp_fdmi->nlp_type |= NLP_FABRIC; | |
7027 | } else | |
7028 | return; | |
7029 | } | |
7030 | if (!NLP_CHK_NODE_ACT(ndlp_fdmi)) | |
7031 | ndlp_fdmi = lpfc_enable_node(vport, | |
7032 | ndlp_fdmi, | |
7033 | NLP_STE_NPR_NODE); | |
7034 | ||
92d7f7b0 | 7035 | if (ndlp_fdmi) { |
58da1ffb | 7036 | lpfc_nlp_set_state(vport, ndlp_fdmi, |
63e801ce JS |
7037 | NLP_STE_PLOGI_ISSUE); |
7038 | lpfc_issue_els_plogi(vport, ndlp_fdmi->nlp_DID, 0); | |
92d7f7b0 JS |
7039 | } |
7040 | } | |
92d7f7b0 JS |
7041 | } |
7042 | ||
e59058c4 | 7043 | /** |
3621a710 | 7044 | * lpfc_cmpl_reg_new_vport - Completion callback function to register new vport |
e59058c4 JS |
7045 | * @phba: pointer to lpfc hba data structure. |
7046 | * @pmb: pointer to the driver internal queue element for mailbox command. | |
7047 | * | |
7048 | * This routine is the completion callback function to register new vport | |
7049 | * mailbox command. If the new vport mailbox command completes successfully, | |
7050 | * the fabric registration login shall be performed on physical port (the | |
7051 | * new vport created is actually a physical port, with VPI 0) or the port | |
7052 | * login to Name Server for State Change Request (SCR) will be performed | |
7053 | * on virtual port (real virtual port, with VPI greater than 0). | |
7054 | **/ | |
92d7f7b0 JS |
7055 | static void |
7056 | lpfc_cmpl_reg_new_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) | |
7057 | { | |
7058 | struct lpfc_vport *vport = pmb->vport; | |
7059 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
7060 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; | |
04c68496 | 7061 | MAILBOX_t *mb = &pmb->u.mb; |
695a814e | 7062 | int rc; |
92d7f7b0 | 7063 | |
09372820 | 7064 | spin_lock_irq(shost->host_lock); |
92d7f7b0 | 7065 | vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; |
09372820 | 7066 | spin_unlock_irq(shost->host_lock); |
92d7f7b0 JS |
7067 | |
7068 | if (mb->mbxStatus) { | |
e8b62011 | 7069 | lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, |
38b92ef8 JS |
7070 | "0915 Register VPI failed : Status: x%x" |
7071 | " upd bit: x%x \n", mb->mbxStatus, | |
7072 | mb->un.varRegVpi.upd); | |
7073 | if (phba->sli_rev == LPFC_SLI_REV4 && | |
7074 | mb->un.varRegVpi.upd) | |
7075 | goto mbox_err_exit ; | |
92d7f7b0 JS |
7076 | |
7077 | switch (mb->mbxStatus) { | |
7078 | case 0x11: /* unsupported feature */ | |
7079 | case 0x9603: /* max_vpi exceeded */ | |
7f5f3d0d | 7080 | case 0x9602: /* Link event since CLEAR_LA */ |
92d7f7b0 JS |
7081 | /* giving up on vport registration */ |
7082 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
7083 | spin_lock_irq(shost->host_lock); | |
7084 | vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
7085 | spin_unlock_irq(shost->host_lock); | |
7086 | lpfc_can_disctmo(vport); | |
7087 | break; | |
695a814e JS |
7088 | /* If reg_vpi fail with invalid VPI status, re-init VPI */ |
7089 | case 0x20: | |
7090 | spin_lock_irq(shost->host_lock); | |
7091 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; | |
7092 | spin_unlock_irq(shost->host_lock); | |
7093 | lpfc_init_vpi(phba, pmb, vport->vpi); | |
7094 | pmb->vport = vport; | |
7095 | pmb->mbox_cmpl = lpfc_init_vpi_cmpl; | |
7096 | rc = lpfc_sli_issue_mbox(phba, pmb, | |
7097 | MBX_NOWAIT); | |
7098 | if (rc == MBX_NOT_FINISHED) { | |
7099 | lpfc_printf_vlog(vport, | |
7100 | KERN_ERR, LOG_MBOX, | |
7101 | "2732 Failed to issue INIT_VPI" | |
7102 | " mailbox command\n"); | |
7103 | } else { | |
7104 | lpfc_nlp_put(ndlp); | |
7105 | return; | |
7106 | } | |
7107 | ||
92d7f7b0 JS |
7108 | default: |
7109 | /* Try to recover from this error */ | |
5af5eee7 JS |
7110 | if (phba->sli_rev == LPFC_SLI_REV4) |
7111 | lpfc_sli4_unreg_all_rpis(vport); | |
92d7f7b0 | 7112 | lpfc_mbx_unreg_vpi(vport); |
09372820 | 7113 | spin_lock_irq(shost->host_lock); |
92d7f7b0 | 7114 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; |
09372820 | 7115 | spin_unlock_irq(shost->host_lock); |
4b40c59e JS |
7116 | if (vport->port_type == LPFC_PHYSICAL_PORT |
7117 | && !(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) | |
76a95d75 | 7118 | lpfc_issue_init_vfi(vport); |
7f5f3d0d JS |
7119 | else |
7120 | lpfc_initial_fdisc(vport); | |
92d7f7b0 JS |
7121 | break; |
7122 | } | |
92d7f7b0 | 7123 | } else { |
695a814e | 7124 | spin_lock_irq(shost->host_lock); |
1987807d | 7125 | vport->vpi_state |= LPFC_VPI_REGISTERED; |
695a814e JS |
7126 | spin_unlock_irq(shost->host_lock); |
7127 | if (vport == phba->pport) { | |
6fb120a7 JS |
7128 | if (phba->sli_rev < LPFC_SLI_REV4) |
7129 | lpfc_issue_fabric_reglogin(vport); | |
695a814e | 7130 | else { |
fc2b989b JS |
7131 | /* |
7132 | * If the physical port is instantiated using | |
7133 | * FDISC, do not start vport discovery. | |
7134 | */ | |
7135 | if (vport->port_state != LPFC_FDISC) | |
7136 | lpfc_start_fdiscs(phba); | |
695a814e JS |
7137 | lpfc_do_scr_ns_plogi(phba, vport); |
7138 | } | |
7139 | } else | |
92d7f7b0 JS |
7140 | lpfc_do_scr_ns_plogi(phba, vport); |
7141 | } | |
38b92ef8 | 7142 | mbox_err_exit: |
fa4066b6 JS |
7143 | /* Now, we decrement the ndlp reference count held for this |
7144 | * callback function | |
7145 | */ | |
7146 | lpfc_nlp_put(ndlp); | |
7147 | ||
92d7f7b0 JS |
7148 | mempool_free(pmb, phba->mbox_mem_pool); |
7149 | return; | |
7150 | } | |
7151 | ||
e59058c4 | 7152 | /** |
3621a710 | 7153 | * lpfc_register_new_vport - Register a new vport with a HBA |
e59058c4 JS |
7154 | * @phba: pointer to lpfc hba data structure. |
7155 | * @vport: pointer to a host virtual N_Port data structure. | |
7156 | * @ndlp: pointer to a node-list data structure. | |
7157 | * | |
7158 | * This routine registers the @vport as a new virtual port with a HBA. | |
7159 | * It is done through a registering vpi mailbox command. | |
7160 | **/ | |
695a814e | 7161 | void |
92d7f7b0 JS |
7162 | lpfc_register_new_vport(struct lpfc_hba *phba, struct lpfc_vport *vport, |
7163 | struct lpfc_nodelist *ndlp) | |
7164 | { | |
09372820 | 7165 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
92d7f7b0 JS |
7166 | LPFC_MBOXQ_t *mbox; |
7167 | ||
7168 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
7169 | if (mbox) { | |
6fb120a7 | 7170 | lpfc_reg_vpi(vport, mbox); |
92d7f7b0 JS |
7171 | mbox->vport = vport; |
7172 | mbox->context2 = lpfc_nlp_get(ndlp); | |
7173 | mbox->mbox_cmpl = lpfc_cmpl_reg_new_vport; | |
0b727fea | 7174 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) |
92d7f7b0 | 7175 | == MBX_NOT_FINISHED) { |
fa4066b6 JS |
7176 | /* mailbox command not success, decrement ndlp |
7177 | * reference count for this command | |
7178 | */ | |
7179 | lpfc_nlp_put(ndlp); | |
92d7f7b0 | 7180 | mempool_free(mbox, phba->mbox_mem_pool); |
92d7f7b0 | 7181 | |
e8b62011 JS |
7182 | lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, |
7183 | "0253 Register VPI: Can't send mbox\n"); | |
fa4066b6 | 7184 | goto mbox_err_exit; |
92d7f7b0 JS |
7185 | } |
7186 | } else { | |
e8b62011 JS |
7187 | lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, |
7188 | "0254 Register VPI: no memory\n"); | |
fa4066b6 | 7189 | goto mbox_err_exit; |
92d7f7b0 | 7190 | } |
fa4066b6 JS |
7191 | return; |
7192 | ||
7193 | mbox_err_exit: | |
7194 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
7195 | spin_lock_irq(shost->host_lock); | |
7196 | vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; | |
7197 | spin_unlock_irq(shost->host_lock); | |
7198 | return; | |
92d7f7b0 JS |
7199 | } |
7200 | ||
695a814e | 7201 | /** |
0c9ab6f5 | 7202 | * lpfc_cancel_all_vport_retry_delay_timer - Cancel all vport retry delay timer |
695a814e JS |
7203 | * @phba: pointer to lpfc hba data structure. |
7204 | * | |
0c9ab6f5 | 7205 | * This routine cancels the retry delay timers to all the vports. |
695a814e JS |
7206 | **/ |
7207 | void | |
0c9ab6f5 | 7208 | lpfc_cancel_all_vport_retry_delay_timer(struct lpfc_hba *phba) |
695a814e JS |
7209 | { |
7210 | struct lpfc_vport **vports; | |
7211 | struct lpfc_nodelist *ndlp; | |
695a814e | 7212 | uint32_t link_state; |
0c9ab6f5 | 7213 | int i; |
695a814e JS |
7214 | |
7215 | /* Treat this failure as linkdown for all vports */ | |
7216 | link_state = phba->link_state; | |
7217 | lpfc_linkdown(phba); | |
7218 | phba->link_state = link_state; | |
7219 | ||
7220 | vports = lpfc_create_vport_work_array(phba); | |
7221 | ||
7222 | if (vports) { | |
7223 | for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { | |
7224 | ndlp = lpfc_findnode_did(vports[i], Fabric_DID); | |
7225 | if (ndlp) | |
7226 | lpfc_cancel_retry_delay_tmo(vports[i], ndlp); | |
7227 | lpfc_els_flush_cmd(vports[i]); | |
7228 | } | |
7229 | lpfc_destroy_vport_work_array(phba, vports); | |
7230 | } | |
0c9ab6f5 JS |
7231 | } |
7232 | ||
7233 | /** | |
7234 | * lpfc_retry_pport_discovery - Start timer to retry FLOGI. | |
7235 | * @phba: pointer to lpfc hba data structure. | |
7236 | * | |
7237 | * This routine abort all pending discovery commands and | |
7238 | * start a timer to retry FLOGI for the physical port | |
7239 | * discovery. | |
7240 | **/ | |
7241 | void | |
7242 | lpfc_retry_pport_discovery(struct lpfc_hba *phba) | |
7243 | { | |
7244 | struct lpfc_nodelist *ndlp; | |
7245 | struct Scsi_Host *shost; | |
7246 | ||
7247 | /* Cancel the all vports retry delay retry timers */ | |
7248 | lpfc_cancel_all_vport_retry_delay_timer(phba); | |
695a814e JS |
7249 | |
7250 | /* If fabric require FLOGI, then re-instantiate physical login */ | |
7251 | ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); | |
7252 | if (!ndlp) | |
7253 | return; | |
7254 | ||
695a814e JS |
7255 | shost = lpfc_shost_from_vport(phba->pport); |
7256 | mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ); | |
7257 | spin_lock_irq(shost->host_lock); | |
7258 | ndlp->nlp_flag |= NLP_DELAY_TMO; | |
7259 | spin_unlock_irq(shost->host_lock); | |
7260 | ndlp->nlp_last_elscmd = ELS_CMD_FLOGI; | |
7261 | phba->pport->port_state = LPFC_FLOGI; | |
7262 | return; | |
7263 | } | |
7264 | ||
7265 | /** | |
7266 | * lpfc_fabric_login_reqd - Check if FLOGI required. | |
7267 | * @phba: pointer to lpfc hba data structure. | |
7268 | * @cmdiocb: pointer to FDISC command iocb. | |
7269 | * @rspiocb: pointer to FDISC response iocb. | |
7270 | * | |
7271 | * This routine checks if a FLOGI is reguired for FDISC | |
7272 | * to succeed. | |
7273 | **/ | |
7274 | static int | |
7275 | lpfc_fabric_login_reqd(struct lpfc_hba *phba, | |
7276 | struct lpfc_iocbq *cmdiocb, | |
7277 | struct lpfc_iocbq *rspiocb) | |
7278 | { | |
7279 | ||
7280 | if ((rspiocb->iocb.ulpStatus != IOSTAT_FABRIC_RJT) || | |
7281 | (rspiocb->iocb.un.ulpWord[4] != RJT_LOGIN_REQUIRED)) | |
7282 | return 0; | |
7283 | else | |
7284 | return 1; | |
7285 | } | |
7286 | ||
e59058c4 | 7287 | /** |
3621a710 | 7288 | * lpfc_cmpl_els_fdisc - Completion function for fdisc iocb command |
e59058c4 JS |
7289 | * @phba: pointer to lpfc hba data structure. |
7290 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
7291 | * @rspiocb: pointer to lpfc response iocb data structure. | |
7292 | * | |
7293 | * This routine is the completion callback function to a Fabric Discover | |
7294 | * (FDISC) ELS command. Since all the FDISC ELS commands are issued | |
7295 | * single threaded, each FDISC completion callback function will reset | |
7296 | * the discovery timer for all vports such that the timers will not get | |
7297 | * unnecessary timeout. The function checks the FDISC IOCB status. If error | |
7298 | * detected, the vport will be set to FC_VPORT_FAILED state. Otherwise,the | |
7299 | * vport will set to FC_VPORT_ACTIVE state. It then checks whether the DID | |
7300 | * assigned to the vport has been changed with the completion of the FDISC | |
7301 | * command. If so, both RPI (Remote Port Index) and VPI (Virtual Port Index) | |
7302 | * are unregistered from the HBA, and then the lpfc_register_new_vport() | |
7303 | * routine is invoked to register new vport with the HBA. Otherwise, the | |
7304 | * lpfc_do_scr_ns_plogi() routine is invoked to issue a PLOGI to the Name | |
7305 | * Server for State Change Request (SCR). | |
7306 | **/ | |
92d7f7b0 JS |
7307 | static void |
7308 | lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
7309 | struct lpfc_iocbq *rspiocb) | |
7310 | { | |
7311 | struct lpfc_vport *vport = cmdiocb->vport; | |
7312 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
7313 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
7314 | struct lpfc_nodelist *np; | |
7315 | struct lpfc_nodelist *next_np; | |
7316 | IOCB_t *irsp = &rspiocb->iocb; | |
7317 | struct lpfc_iocbq *piocb; | |
92494144 JS |
7318 | struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp; |
7319 | struct serv_parm *sp; | |
7320 | uint8_t fabric_param_changed; | |
92d7f7b0 | 7321 | |
e8b62011 JS |
7322 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
7323 | "0123 FDISC completes. x%x/x%x prevDID: x%x\n", | |
7324 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
7325 | vport->fc_prevDID); | |
92d7f7b0 JS |
7326 | /* Since all FDISCs are being single threaded, we |
7327 | * must reset the discovery timer for ALL vports | |
7328 | * waiting to send FDISC when one completes. | |
7329 | */ | |
7330 | list_for_each_entry(piocb, &phba->fabric_iocb_list, list) { | |
7331 | lpfc_set_disctmo(piocb->vport); | |
7332 | } | |
7333 | ||
858c9f6c JS |
7334 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
7335 | "FDISC cmpl: status:x%x/x%x prevdid:x%x", | |
7336 | irsp->ulpStatus, irsp->un.ulpWord[4], vport->fc_prevDID); | |
7337 | ||
92d7f7b0 | 7338 | if (irsp->ulpStatus) { |
695a814e JS |
7339 | |
7340 | if (lpfc_fabric_login_reqd(phba, cmdiocb, rspiocb)) { | |
7341 | lpfc_retry_pport_discovery(phba); | |
7342 | goto out; | |
7343 | } | |
7344 | ||
92d7f7b0 JS |
7345 | /* Check for retry */ |
7346 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) | |
7347 | goto out; | |
92d7f7b0 | 7348 | /* FDISC failed */ |
e8b62011 | 7349 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
6b5151fd | 7350 | "0126 FDISC failed. (x%x/x%x)\n", |
e8b62011 | 7351 | irsp->ulpStatus, irsp->un.ulpWord[4]); |
d7c255b2 JS |
7352 | goto fdisc_failed; |
7353 | } | |
d7c255b2 | 7354 | spin_lock_irq(shost->host_lock); |
695a814e | 7355 | vport->fc_flag &= ~FC_VPORT_CVL_RCVD; |
4b40c59e | 7356 | vport->fc_flag &= ~FC_VPORT_LOGO_RCVD; |
d7c255b2 | 7357 | vport->fc_flag |= FC_FABRIC; |
76a95d75 | 7358 | if (vport->phba->fc_topology == LPFC_TOPOLOGY_LOOP) |
d7c255b2 JS |
7359 | vport->fc_flag |= FC_PUBLIC_LOOP; |
7360 | spin_unlock_irq(shost->host_lock); | |
92d7f7b0 | 7361 | |
d7c255b2 JS |
7362 | vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID; |
7363 | lpfc_vport_set_state(vport, FC_VPORT_ACTIVE); | |
92494144 JS |
7364 | prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); |
7365 | sp = prsp->virt + sizeof(uint32_t); | |
7366 | fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp); | |
7367 | memcpy(&vport->fabric_portname, &sp->portName, | |
7368 | sizeof(struct lpfc_name)); | |
7369 | memcpy(&vport->fabric_nodename, &sp->nodeName, | |
7370 | sizeof(struct lpfc_name)); | |
7371 | if (fabric_param_changed && | |
d7c255b2 JS |
7372 | !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { |
7373 | /* If our NportID changed, we need to ensure all | |
7374 | * remaining NPORTs get unreg_login'ed so we can | |
7375 | * issue unreg_vpi. | |
7376 | */ | |
7377 | list_for_each_entry_safe(np, next_np, | |
7378 | &vport->fc_nodes, nlp_listp) { | |
7379 | if (!NLP_CHK_NODE_ACT(ndlp) || | |
7380 | (np->nlp_state != NLP_STE_NPR_NODE) || | |
7381 | !(np->nlp_flag & NLP_NPR_ADISC)) | |
7382 | continue; | |
09372820 | 7383 | spin_lock_irq(shost->host_lock); |
d7c255b2 | 7384 | np->nlp_flag &= ~NLP_NPR_ADISC; |
09372820 | 7385 | spin_unlock_irq(shost->host_lock); |
d7c255b2 | 7386 | lpfc_unreg_rpi(vport, np); |
92d7f7b0 | 7387 | } |
78730cfe | 7388 | lpfc_cleanup_pending_mbox(vport); |
5af5eee7 JS |
7389 | |
7390 | if (phba->sli_rev == LPFC_SLI_REV4) | |
7391 | lpfc_sli4_unreg_all_rpis(vport); | |
7392 | ||
d7c255b2 JS |
7393 | lpfc_mbx_unreg_vpi(vport); |
7394 | spin_lock_irq(shost->host_lock); | |
7395 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; | |
0f65ff68 JS |
7396 | if (phba->sli_rev == LPFC_SLI_REV4) |
7397 | vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; | |
4b40c59e JS |
7398 | else |
7399 | vport->fc_flag |= FC_LOGO_RCVD_DID_CHNG; | |
d7c255b2 | 7400 | spin_unlock_irq(shost->host_lock); |
38b92ef8 JS |
7401 | } else if ((phba->sli_rev == LPFC_SLI_REV4) && |
7402 | !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { | |
7403 | /* | |
7404 | * Driver needs to re-reg VPI in order for f/w | |
7405 | * to update the MAC address. | |
7406 | */ | |
7407 | lpfc_register_new_vport(phba, vport, ndlp); | |
5ac6b303 | 7408 | goto out; |
92d7f7b0 JS |
7409 | } |
7410 | ||
ecfd03c6 JS |
7411 | if (vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI) |
7412 | lpfc_issue_init_vpi(vport); | |
7413 | else if (vport->fc_flag & FC_VPORT_NEEDS_REG_VPI) | |
d7c255b2 JS |
7414 | lpfc_register_new_vport(phba, vport, ndlp); |
7415 | else | |
7416 | lpfc_do_scr_ns_plogi(phba, vport); | |
7417 | goto out; | |
7418 | fdisc_failed: | |
7419 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
7420 | /* Cancel discovery timer */ | |
7421 | lpfc_can_disctmo(vport); | |
7422 | lpfc_nlp_put(ndlp); | |
92d7f7b0 JS |
7423 | out: |
7424 | lpfc_els_free_iocb(phba, cmdiocb); | |
7425 | } | |
7426 | ||
e59058c4 | 7427 | /** |
3621a710 | 7428 | * lpfc_issue_els_fdisc - Issue a fdisc iocb command |
e59058c4 JS |
7429 | * @vport: pointer to a virtual N_Port data structure. |
7430 | * @ndlp: pointer to a node-list data structure. | |
7431 | * @retry: number of retries to the command IOCB. | |
7432 | * | |
7433 | * This routine prepares and issues a Fabric Discover (FDISC) IOCB to | |
7434 | * a remote node (@ndlp) off a @vport. It uses the lpfc_issue_fabric_iocb() | |
7435 | * routine to issue the IOCB, which makes sure only one outstanding fabric | |
7436 | * IOCB will be sent off HBA at any given time. | |
7437 | * | |
7438 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
7439 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
7440 | * will be stored into the context1 field of the IOCB for the completion | |
7441 | * callback function to the FDISC ELS command. | |
7442 | * | |
7443 | * Return code | |
7444 | * 0 - Successfully issued fdisc iocb command | |
7445 | * 1 - Failed to issue fdisc iocb command | |
7446 | **/ | |
a6ababd2 | 7447 | static int |
92d7f7b0 JS |
7448 | lpfc_issue_els_fdisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
7449 | uint8_t retry) | |
7450 | { | |
7451 | struct lpfc_hba *phba = vport->phba; | |
7452 | IOCB_t *icmd; | |
7453 | struct lpfc_iocbq *elsiocb; | |
7454 | struct serv_parm *sp; | |
7455 | uint8_t *pcmd; | |
7456 | uint16_t cmdsize; | |
7457 | int did = ndlp->nlp_DID; | |
7458 | int rc; | |
92d7f7b0 | 7459 | |
5ffc266e | 7460 | vport->port_state = LPFC_FDISC; |
6b5151fd | 7461 | vport->fc_myDID = 0; |
92d7f7b0 JS |
7462 | cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); |
7463 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did, | |
7464 | ELS_CMD_FDISC); | |
7465 | if (!elsiocb) { | |
92d7f7b0 | 7466 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
e8b62011 JS |
7467 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
7468 | "0255 Issue FDISC: no IOCB\n"); | |
92d7f7b0 JS |
7469 | return 1; |
7470 | } | |
7471 | ||
7472 | icmd = &elsiocb->iocb; | |
7473 | icmd->un.elsreq64.myID = 0; | |
7474 | icmd->un.elsreq64.fl = 1; | |
7475 | ||
73d91e50 JS |
7476 | /* |
7477 | * SLI3 ports require a different context type value than SLI4. | |
7478 | * Catch SLI3 ports here and override the prep. | |
7479 | */ | |
7480 | if (phba->sli_rev == LPFC_SLI_REV3) { | |
f1126688 JS |
7481 | icmd->ulpCt_h = 1; |
7482 | icmd->ulpCt_l = 0; | |
7483 | } | |
92d7f7b0 JS |
7484 | |
7485 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
7486 | *((uint32_t *) (pcmd)) = ELS_CMD_FDISC; | |
7487 | pcmd += sizeof(uint32_t); /* CSP Word 1 */ | |
7488 | memcpy(pcmd, &vport->phba->pport->fc_sparam, sizeof(struct serv_parm)); | |
7489 | sp = (struct serv_parm *) pcmd; | |
7490 | /* Setup CSPs accordingly for Fabric */ | |
7491 | sp->cmn.e_d_tov = 0; | |
7492 | sp->cmn.w2.r_a_tov = 0; | |
df9e1b59 | 7493 | sp->cmn.virtual_fabric_support = 0; |
92d7f7b0 JS |
7494 | sp->cls1.classValid = 0; |
7495 | sp->cls2.seqDelivery = 1; | |
7496 | sp->cls3.seqDelivery = 1; | |
7497 | ||
7498 | pcmd += sizeof(uint32_t); /* CSP Word 2 */ | |
7499 | pcmd += sizeof(uint32_t); /* CSP Word 3 */ | |
7500 | pcmd += sizeof(uint32_t); /* CSP Word 4 */ | |
7501 | pcmd += sizeof(uint32_t); /* Port Name */ | |
7502 | memcpy(pcmd, &vport->fc_portname, 8); | |
7503 | pcmd += sizeof(uint32_t); /* Node Name */ | |
7504 | pcmd += sizeof(uint32_t); /* Node Name */ | |
7505 | memcpy(pcmd, &vport->fc_nodename, 8); | |
7506 | ||
7507 | lpfc_set_disctmo(vport); | |
7508 | ||
7509 | phba->fc_stat.elsXmitFDISC++; | |
7510 | elsiocb->iocb_cmpl = lpfc_cmpl_els_fdisc; | |
7511 | ||
858c9f6c JS |
7512 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
7513 | "Issue FDISC: did:x%x", | |
7514 | did, 0, 0); | |
7515 | ||
92d7f7b0 JS |
7516 | rc = lpfc_issue_fabric_iocb(phba, elsiocb); |
7517 | if (rc == IOCB_ERROR) { | |
7518 | lpfc_els_free_iocb(phba, elsiocb); | |
92d7f7b0 | 7519 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
e8b62011 JS |
7520 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
7521 | "0256 Issue FDISC: Cannot send IOCB\n"); | |
92d7f7b0 JS |
7522 | return 1; |
7523 | } | |
7524 | lpfc_vport_set_state(vport, FC_VPORT_INITIALIZING); | |
92d7f7b0 JS |
7525 | return 0; |
7526 | } | |
7527 | ||
e59058c4 | 7528 | /** |
3621a710 | 7529 | * lpfc_cmpl_els_npiv_logo - Completion function with vport logo |
e59058c4 JS |
7530 | * @phba: pointer to lpfc hba data structure. |
7531 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
7532 | * @rspiocb: pointer to lpfc response iocb data structure. | |
7533 | * | |
7534 | * This routine is the completion callback function to the issuing of a LOGO | |
7535 | * ELS command off a vport. It frees the command IOCB and then decrement the | |
7536 | * reference count held on ndlp for this completion function, indicating that | |
7537 | * the reference to the ndlp is no long needed. Note that the | |
7538 | * lpfc_els_free_iocb() routine decrements the ndlp reference held for this | |
7539 | * callback function and an additional explicit ndlp reference decrementation | |
7540 | * will trigger the actual release of the ndlp. | |
7541 | **/ | |
92d7f7b0 JS |
7542 | static void |
7543 | lpfc_cmpl_els_npiv_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
7544 | struct lpfc_iocbq *rspiocb) | |
7545 | { | |
7546 | struct lpfc_vport *vport = cmdiocb->vport; | |
858c9f6c | 7547 | IOCB_t *irsp; |
e47c9093 | 7548 | struct lpfc_nodelist *ndlp; |
9589b062 | 7549 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
858c9f6c | 7550 | |
9589b062 | 7551 | ndlp = (struct lpfc_nodelist *)cmdiocb->context1; |
858c9f6c JS |
7552 | irsp = &rspiocb->iocb; |
7553 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, | |
7554 | "LOGO npiv cmpl: status:x%x/x%x did:x%x", | |
7555 | irsp->ulpStatus, irsp->un.ulpWord[4], irsp->un.rcvels.remoteID); | |
92d7f7b0 JS |
7556 | |
7557 | lpfc_els_free_iocb(phba, cmdiocb); | |
7558 | vport->unreg_vpi_cmpl = VPORT_ERROR; | |
e47c9093 JS |
7559 | |
7560 | /* Trigger the release of the ndlp after logo */ | |
7561 | lpfc_nlp_put(ndlp); | |
9589b062 JS |
7562 | |
7563 | /* NPIV LOGO completes to NPort <nlp_DID> */ | |
7564 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
7565 | "2928 NPIV LOGO completes to NPort x%x " | |
7566 | "Data: x%x x%x x%x x%x\n", | |
7567 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
7568 | irsp->ulpTimeout, vport->num_disc_nodes); | |
7569 | ||
7570 | if (irsp->ulpStatus == IOSTAT_SUCCESS) { | |
7571 | spin_lock_irq(shost->host_lock); | |
7572 | vport->fc_flag &= ~FC_FABRIC; | |
7573 | spin_unlock_irq(shost->host_lock); | |
7574 | } | |
92d7f7b0 JS |
7575 | } |
7576 | ||
e59058c4 | 7577 | /** |
3621a710 | 7578 | * lpfc_issue_els_npiv_logo - Issue a logo off a vport |
e59058c4 JS |
7579 | * @vport: pointer to a virtual N_Port data structure. |
7580 | * @ndlp: pointer to a node-list data structure. | |
7581 | * | |
7582 | * This routine issues a LOGO ELS command to an @ndlp off a @vport. | |
7583 | * | |
7584 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
7585 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
7586 | * will be stored into the context1 field of the IOCB for the completion | |
7587 | * callback function to the LOGO ELS command. | |
7588 | * | |
7589 | * Return codes | |
7590 | * 0 - Successfully issued logo off the @vport | |
7591 | * 1 - Failed to issue logo off the @vport | |
7592 | **/ | |
92d7f7b0 JS |
7593 | int |
7594 | lpfc_issue_els_npiv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) | |
7595 | { | |
7596 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
7597 | struct lpfc_hba *phba = vport->phba; | |
92d7f7b0 JS |
7598 | IOCB_t *icmd; |
7599 | struct lpfc_iocbq *elsiocb; | |
7600 | uint8_t *pcmd; | |
7601 | uint16_t cmdsize; | |
7602 | ||
7603 | cmdsize = 2 * sizeof(uint32_t) + sizeof(struct lpfc_name); | |
7604 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, ndlp->nlp_DID, | |
7605 | ELS_CMD_LOGO); | |
7606 | if (!elsiocb) | |
7607 | return 1; | |
7608 | ||
7609 | icmd = &elsiocb->iocb; | |
7610 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
7611 | *((uint32_t *) (pcmd)) = ELS_CMD_LOGO; | |
7612 | pcmd += sizeof(uint32_t); | |
7613 | ||
7614 | /* Fill in LOGO payload */ | |
7615 | *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID); | |
7616 | pcmd += sizeof(uint32_t); | |
7617 | memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name)); | |
7618 | ||
858c9f6c JS |
7619 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
7620 | "Issue LOGO npiv did:x%x flg:x%x", | |
7621 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
7622 | ||
92d7f7b0 JS |
7623 | elsiocb->iocb_cmpl = lpfc_cmpl_els_npiv_logo; |
7624 | spin_lock_irq(shost->host_lock); | |
7625 | ndlp->nlp_flag |= NLP_LOGO_SND; | |
7626 | spin_unlock_irq(shost->host_lock); | |
3772a991 JS |
7627 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
7628 | IOCB_ERROR) { | |
92d7f7b0 JS |
7629 | spin_lock_irq(shost->host_lock); |
7630 | ndlp->nlp_flag &= ~NLP_LOGO_SND; | |
7631 | spin_unlock_irq(shost->host_lock); | |
7632 | lpfc_els_free_iocb(phba, elsiocb); | |
7633 | return 1; | |
7634 | } | |
7635 | return 0; | |
7636 | } | |
7637 | ||
e59058c4 | 7638 | /** |
3621a710 | 7639 | * lpfc_fabric_block_timeout - Handler function to the fabric block timer |
e59058c4 JS |
7640 | * @ptr: holder for the timer function associated data. |
7641 | * | |
7642 | * This routine is invoked by the fabric iocb block timer after | |
7643 | * timeout. It posts the fabric iocb block timeout event by setting the | |
7644 | * WORKER_FABRIC_BLOCK_TMO bit to work port event bitmap and then invokes | |
7645 | * lpfc_worker_wake_up() routine to wake up the worker thread. It is for | |
7646 | * the worker thread to invoke the lpfc_unblock_fabric_iocbs() on the | |
7647 | * posted event WORKER_FABRIC_BLOCK_TMO. | |
7648 | **/ | |
92d7f7b0 JS |
7649 | void |
7650 | lpfc_fabric_block_timeout(unsigned long ptr) | |
7651 | { | |
7652 | struct lpfc_hba *phba = (struct lpfc_hba *) ptr; | |
7653 | unsigned long iflags; | |
7654 | uint32_t tmo_posted; | |
5e9d9b82 | 7655 | |
92d7f7b0 JS |
7656 | spin_lock_irqsave(&phba->pport->work_port_lock, iflags); |
7657 | tmo_posted = phba->pport->work_port_events & WORKER_FABRIC_BLOCK_TMO; | |
7658 | if (!tmo_posted) | |
7659 | phba->pport->work_port_events |= WORKER_FABRIC_BLOCK_TMO; | |
7660 | spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags); | |
7661 | ||
5e9d9b82 JS |
7662 | if (!tmo_posted) |
7663 | lpfc_worker_wake_up(phba); | |
7664 | return; | |
92d7f7b0 JS |
7665 | } |
7666 | ||
e59058c4 | 7667 | /** |
3621a710 | 7668 | * lpfc_resume_fabric_iocbs - Issue a fabric iocb from driver internal list |
e59058c4 JS |
7669 | * @phba: pointer to lpfc hba data structure. |
7670 | * | |
7671 | * This routine issues one fabric iocb from the driver internal list to | |
7672 | * the HBA. It first checks whether it's ready to issue one fabric iocb to | |
7673 | * the HBA (whether there is no outstanding fabric iocb). If so, it shall | |
7674 | * remove one pending fabric iocb from the driver internal list and invokes | |
7675 | * lpfc_sli_issue_iocb() routine to send the fabric iocb to the HBA. | |
7676 | **/ | |
92d7f7b0 JS |
7677 | static void |
7678 | lpfc_resume_fabric_iocbs(struct lpfc_hba *phba) | |
7679 | { | |
7680 | struct lpfc_iocbq *iocb; | |
7681 | unsigned long iflags; | |
7682 | int ret; | |
92d7f7b0 JS |
7683 | IOCB_t *cmd; |
7684 | ||
7685 | repeat: | |
7686 | iocb = NULL; | |
7687 | spin_lock_irqsave(&phba->hbalock, iflags); | |
7f5f3d0d | 7688 | /* Post any pending iocb to the SLI layer */ |
92d7f7b0 JS |
7689 | if (atomic_read(&phba->fabric_iocb_count) == 0) { |
7690 | list_remove_head(&phba->fabric_iocb_list, iocb, typeof(*iocb), | |
7691 | list); | |
7692 | if (iocb) | |
7f5f3d0d | 7693 | /* Increment fabric iocb count to hold the position */ |
92d7f7b0 JS |
7694 | atomic_inc(&phba->fabric_iocb_count); |
7695 | } | |
7696 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
7697 | if (iocb) { | |
7698 | iocb->fabric_iocb_cmpl = iocb->iocb_cmpl; | |
7699 | iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb; | |
7700 | iocb->iocb_flag |= LPFC_IO_FABRIC; | |
7701 | ||
858c9f6c JS |
7702 | lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD, |
7703 | "Fabric sched1: ste:x%x", | |
7704 | iocb->vport->port_state, 0, 0); | |
7705 | ||
3772a991 | 7706 | ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0); |
92d7f7b0 JS |
7707 | |
7708 | if (ret == IOCB_ERROR) { | |
7709 | iocb->iocb_cmpl = iocb->fabric_iocb_cmpl; | |
7710 | iocb->fabric_iocb_cmpl = NULL; | |
7711 | iocb->iocb_flag &= ~LPFC_IO_FABRIC; | |
7712 | cmd = &iocb->iocb; | |
7713 | cmd->ulpStatus = IOSTAT_LOCAL_REJECT; | |
7714 | cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; | |
7715 | iocb->iocb_cmpl(phba, iocb, iocb); | |
7716 | ||
7717 | atomic_dec(&phba->fabric_iocb_count); | |
7718 | goto repeat; | |
7719 | } | |
7720 | } | |
7721 | ||
7722 | return; | |
7723 | } | |
7724 | ||
e59058c4 | 7725 | /** |
3621a710 | 7726 | * lpfc_unblock_fabric_iocbs - Unblock issuing fabric iocb command |
e59058c4 JS |
7727 | * @phba: pointer to lpfc hba data structure. |
7728 | * | |
7729 | * This routine unblocks the issuing fabric iocb command. The function | |
7730 | * will clear the fabric iocb block bit and then invoke the routine | |
7731 | * lpfc_resume_fabric_iocbs() to issue one of the pending fabric iocb | |
7732 | * from the driver internal fabric iocb list. | |
7733 | **/ | |
92d7f7b0 JS |
7734 | void |
7735 | lpfc_unblock_fabric_iocbs(struct lpfc_hba *phba) | |
7736 | { | |
7737 | clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); | |
7738 | ||
7739 | lpfc_resume_fabric_iocbs(phba); | |
7740 | return; | |
7741 | } | |
7742 | ||
e59058c4 | 7743 | /** |
3621a710 | 7744 | * lpfc_block_fabric_iocbs - Block issuing fabric iocb command |
e59058c4 JS |
7745 | * @phba: pointer to lpfc hba data structure. |
7746 | * | |
7747 | * This routine blocks the issuing fabric iocb for a specified amount of | |
7748 | * time (currently 100 ms). This is done by set the fabric iocb block bit | |
7749 | * and set up a timeout timer for 100ms. When the block bit is set, no more | |
7750 | * fabric iocb will be issued out of the HBA. | |
7751 | **/ | |
92d7f7b0 JS |
7752 | static void |
7753 | lpfc_block_fabric_iocbs(struct lpfc_hba *phba) | |
7754 | { | |
7755 | int blocked; | |
7756 | ||
7757 | blocked = test_and_set_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); | |
7f5f3d0d | 7758 | /* Start a timer to unblock fabric iocbs after 100ms */ |
92d7f7b0 JS |
7759 | if (!blocked) |
7760 | mod_timer(&phba->fabric_block_timer, jiffies + HZ/10 ); | |
7761 | ||
7762 | return; | |
7763 | } | |
7764 | ||
e59058c4 | 7765 | /** |
3621a710 | 7766 | * lpfc_cmpl_fabric_iocb - Completion callback function for fabric iocb |
e59058c4 JS |
7767 | * @phba: pointer to lpfc hba data structure. |
7768 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
7769 | * @rspiocb: pointer to lpfc response iocb data structure. | |
7770 | * | |
7771 | * This routine is the callback function that is put to the fabric iocb's | |
7772 | * callback function pointer (iocb->iocb_cmpl). The original iocb's callback | |
7773 | * function pointer has been stored in iocb->fabric_iocb_cmpl. This callback | |
7774 | * function first restores and invokes the original iocb's callback function | |
7775 | * and then invokes the lpfc_resume_fabric_iocbs() routine to issue the next | |
7776 | * fabric bound iocb from the driver internal fabric iocb list onto the wire. | |
7777 | **/ | |
92d7f7b0 JS |
7778 | static void |
7779 | lpfc_cmpl_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
7780 | struct lpfc_iocbq *rspiocb) | |
7781 | { | |
7782 | struct ls_rjt stat; | |
7783 | ||
7784 | if ((cmdiocb->iocb_flag & LPFC_IO_FABRIC) != LPFC_IO_FABRIC) | |
7785 | BUG(); | |
7786 | ||
7787 | switch (rspiocb->iocb.ulpStatus) { | |
7788 | case IOSTAT_NPORT_RJT: | |
7789 | case IOSTAT_FABRIC_RJT: | |
7790 | if (rspiocb->iocb.un.ulpWord[4] & RJT_UNAVAIL_TEMP) { | |
7791 | lpfc_block_fabric_iocbs(phba); | |
ed957684 | 7792 | } |
92d7f7b0 JS |
7793 | break; |
7794 | ||
7795 | case IOSTAT_NPORT_BSY: | |
7796 | case IOSTAT_FABRIC_BSY: | |
7797 | lpfc_block_fabric_iocbs(phba); | |
7798 | break; | |
7799 | ||
7800 | case IOSTAT_LS_RJT: | |
7801 | stat.un.lsRjtError = | |
7802 | be32_to_cpu(rspiocb->iocb.un.ulpWord[4]); | |
7803 | if ((stat.un.b.lsRjtRsnCode == LSRJT_UNABLE_TPC) || | |
7804 | (stat.un.b.lsRjtRsnCode == LSRJT_LOGICAL_BSY)) | |
7805 | lpfc_block_fabric_iocbs(phba); | |
7806 | break; | |
7807 | } | |
7808 | ||
7809 | if (atomic_read(&phba->fabric_iocb_count) == 0) | |
7810 | BUG(); | |
7811 | ||
7812 | cmdiocb->iocb_cmpl = cmdiocb->fabric_iocb_cmpl; | |
7813 | cmdiocb->fabric_iocb_cmpl = NULL; | |
7814 | cmdiocb->iocb_flag &= ~LPFC_IO_FABRIC; | |
7815 | cmdiocb->iocb_cmpl(phba, cmdiocb, rspiocb); | |
7816 | ||
7817 | atomic_dec(&phba->fabric_iocb_count); | |
7818 | if (!test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags)) { | |
7f5f3d0d JS |
7819 | /* Post any pending iocbs to HBA */ |
7820 | lpfc_resume_fabric_iocbs(phba); | |
92d7f7b0 JS |
7821 | } |
7822 | } | |
7823 | ||
e59058c4 | 7824 | /** |
3621a710 | 7825 | * lpfc_issue_fabric_iocb - Issue a fabric iocb command |
e59058c4 JS |
7826 | * @phba: pointer to lpfc hba data structure. |
7827 | * @iocb: pointer to lpfc command iocb data structure. | |
7828 | * | |
7829 | * This routine is used as the top-level API for issuing a fabric iocb command | |
7830 | * such as FLOGI and FDISC. To accommodate certain switch fabric, this driver | |
7831 | * function makes sure that only one fabric bound iocb will be outstanding at | |
7832 | * any given time. As such, this function will first check to see whether there | |
7833 | * is already an outstanding fabric iocb on the wire. If so, it will put the | |
7834 | * newly issued iocb onto the driver internal fabric iocb list, waiting to be | |
7835 | * issued later. Otherwise, it will issue the iocb on the wire and update the | |
7836 | * fabric iocb count it indicate that there is one fabric iocb on the wire. | |
7837 | * | |
7838 | * Note, this implementation has a potential sending out fabric IOCBs out of | |
7839 | * order. The problem is caused by the construction of the "ready" boolen does | |
7840 | * not include the condition that the internal fabric IOCB list is empty. As | |
7841 | * such, it is possible a fabric IOCB issued by this routine might be "jump" | |
7842 | * ahead of the fabric IOCBs in the internal list. | |
7843 | * | |
7844 | * Return code | |
7845 | * IOCB_SUCCESS - either fabric iocb put on the list or issued successfully | |
7846 | * IOCB_ERROR - failed to issue fabric iocb | |
7847 | **/ | |
a6ababd2 | 7848 | static int |
92d7f7b0 JS |
7849 | lpfc_issue_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *iocb) |
7850 | { | |
7851 | unsigned long iflags; | |
92d7f7b0 JS |
7852 | int ready; |
7853 | int ret; | |
7854 | ||
7855 | if (atomic_read(&phba->fabric_iocb_count) > 1) | |
7856 | BUG(); | |
7857 | ||
7858 | spin_lock_irqsave(&phba->hbalock, iflags); | |
7859 | ready = atomic_read(&phba->fabric_iocb_count) == 0 && | |
7860 | !test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); | |
7861 | ||
7f5f3d0d JS |
7862 | if (ready) |
7863 | /* Increment fabric iocb count to hold the position */ | |
7864 | atomic_inc(&phba->fabric_iocb_count); | |
92d7f7b0 JS |
7865 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
7866 | if (ready) { | |
7867 | iocb->fabric_iocb_cmpl = iocb->iocb_cmpl; | |
7868 | iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb; | |
7869 | iocb->iocb_flag |= LPFC_IO_FABRIC; | |
7870 | ||
858c9f6c JS |
7871 | lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD, |
7872 | "Fabric sched2: ste:x%x", | |
7873 | iocb->vport->port_state, 0, 0); | |
7874 | ||
3772a991 | 7875 | ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0); |
92d7f7b0 JS |
7876 | |
7877 | if (ret == IOCB_ERROR) { | |
7878 | iocb->iocb_cmpl = iocb->fabric_iocb_cmpl; | |
7879 | iocb->fabric_iocb_cmpl = NULL; | |
7880 | iocb->iocb_flag &= ~LPFC_IO_FABRIC; | |
7881 | atomic_dec(&phba->fabric_iocb_count); | |
7882 | } | |
7883 | } else { | |
7884 | spin_lock_irqsave(&phba->hbalock, iflags); | |
7885 | list_add_tail(&iocb->list, &phba->fabric_iocb_list); | |
7886 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
7887 | ret = IOCB_SUCCESS; | |
7888 | } | |
7889 | return ret; | |
7890 | } | |
7891 | ||
e59058c4 | 7892 | /** |
3621a710 | 7893 | * lpfc_fabric_abort_vport - Abort a vport's iocbs from driver fabric iocb list |
e59058c4 JS |
7894 | * @vport: pointer to a virtual N_Port data structure. |
7895 | * | |
7896 | * This routine aborts all the IOCBs associated with a @vport from the | |
7897 | * driver internal fabric IOCB list. The list contains fabric IOCBs to be | |
7898 | * issued to the ELS IOCB ring. This abort function walks the fabric IOCB | |
7899 | * list, removes each IOCB associated with the @vport off the list, set the | |
7900 | * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function | |
7901 | * associated with the IOCB. | |
7902 | **/ | |
a6ababd2 | 7903 | static void lpfc_fabric_abort_vport(struct lpfc_vport *vport) |
92d7f7b0 JS |
7904 | { |
7905 | LIST_HEAD(completions); | |
7906 | struct lpfc_hba *phba = vport->phba; | |
7907 | struct lpfc_iocbq *tmp_iocb, *piocb; | |
92d7f7b0 JS |
7908 | |
7909 | spin_lock_irq(&phba->hbalock); | |
7910 | list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list, | |
7911 | list) { | |
7912 | ||
7913 | if (piocb->vport != vport) | |
7914 | continue; | |
7915 | ||
7916 | list_move_tail(&piocb->list, &completions); | |
7917 | } | |
7918 | spin_unlock_irq(&phba->hbalock); | |
7919 | ||
a257bf90 JS |
7920 | /* Cancel all the IOCBs from the completions list */ |
7921 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
7922 | IOERR_SLI_ABORTED); | |
92d7f7b0 JS |
7923 | } |
7924 | ||
e59058c4 | 7925 | /** |
3621a710 | 7926 | * lpfc_fabric_abort_nport - Abort a ndlp's iocbs from driver fabric iocb list |
e59058c4 JS |
7927 | * @ndlp: pointer to a node-list data structure. |
7928 | * | |
7929 | * This routine aborts all the IOCBs associated with an @ndlp from the | |
7930 | * driver internal fabric IOCB list. The list contains fabric IOCBs to be | |
7931 | * issued to the ELS IOCB ring. This abort function walks the fabric IOCB | |
7932 | * list, removes each IOCB associated with the @ndlp off the list, set the | |
7933 | * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function | |
7934 | * associated with the IOCB. | |
7935 | **/ | |
92d7f7b0 JS |
7936 | void lpfc_fabric_abort_nport(struct lpfc_nodelist *ndlp) |
7937 | { | |
7938 | LIST_HEAD(completions); | |
a257bf90 | 7939 | struct lpfc_hba *phba = ndlp->phba; |
92d7f7b0 JS |
7940 | struct lpfc_iocbq *tmp_iocb, *piocb; |
7941 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; | |
92d7f7b0 JS |
7942 | |
7943 | spin_lock_irq(&phba->hbalock); | |
7944 | list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list, | |
7945 | list) { | |
7946 | if ((lpfc_check_sli_ndlp(phba, pring, piocb, ndlp))) { | |
7947 | ||
7948 | list_move_tail(&piocb->list, &completions); | |
ed957684 | 7949 | } |
dea3101e | 7950 | } |
92d7f7b0 JS |
7951 | spin_unlock_irq(&phba->hbalock); |
7952 | ||
a257bf90 JS |
7953 | /* Cancel all the IOCBs from the completions list */ |
7954 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
7955 | IOERR_SLI_ABORTED); | |
92d7f7b0 JS |
7956 | } |
7957 | ||
e59058c4 | 7958 | /** |
3621a710 | 7959 | * lpfc_fabric_abort_hba - Abort all iocbs on driver fabric iocb list |
e59058c4 JS |
7960 | * @phba: pointer to lpfc hba data structure. |
7961 | * | |
7962 | * This routine aborts all the IOCBs currently on the driver internal | |
7963 | * fabric IOCB list. The list contains fabric IOCBs to be issued to the ELS | |
7964 | * IOCB ring. This function takes the entire IOCB list off the fabric IOCB | |
7965 | * list, removes IOCBs off the list, set the status feild to | |
7966 | * IOSTAT_LOCAL_REJECT, and invokes the callback function associated with | |
7967 | * the IOCB. | |
7968 | **/ | |
92d7f7b0 JS |
7969 | void lpfc_fabric_abort_hba(struct lpfc_hba *phba) |
7970 | { | |
7971 | LIST_HEAD(completions); | |
92d7f7b0 JS |
7972 | |
7973 | spin_lock_irq(&phba->hbalock); | |
7974 | list_splice_init(&phba->fabric_iocb_list, &completions); | |
7975 | spin_unlock_irq(&phba->hbalock); | |
7976 | ||
a257bf90 JS |
7977 | /* Cancel all the IOCBs from the completions list */ |
7978 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
7979 | IOERR_SLI_ABORTED); | |
dea3101e | 7980 | } |
6fb120a7 | 7981 | |
1151e3ec JS |
7982 | /** |
7983 | * lpfc_sli4_vport_delete_els_xri_aborted -Remove all ndlp references for vport | |
7984 | * @vport: pointer to lpfc vport data structure. | |
7985 | * | |
7986 | * This routine is invoked by the vport cleanup for deletions and the cleanup | |
7987 | * for an ndlp on removal. | |
7988 | **/ | |
7989 | void | |
7990 | lpfc_sli4_vport_delete_els_xri_aborted(struct lpfc_vport *vport) | |
7991 | { | |
7992 | struct lpfc_hba *phba = vport->phba; | |
7993 | struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; | |
7994 | unsigned long iflag = 0; | |
7995 | ||
7996 | spin_lock_irqsave(&phba->hbalock, iflag); | |
7997 | spin_lock(&phba->sli4_hba.abts_sgl_list_lock); | |
7998 | list_for_each_entry_safe(sglq_entry, sglq_next, | |
7999 | &phba->sli4_hba.lpfc_abts_els_sgl_list, list) { | |
8000 | if (sglq_entry->ndlp && sglq_entry->ndlp->vport == vport) | |
8001 | sglq_entry->ndlp = NULL; | |
8002 | } | |
8003 | spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); | |
8004 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
8005 | return; | |
8006 | } | |
8007 | ||
6fb120a7 JS |
8008 | /** |
8009 | * lpfc_sli4_els_xri_aborted - Slow-path process of els xri abort | |
8010 | * @phba: pointer to lpfc hba data structure. | |
8011 | * @axri: pointer to the els xri abort wcqe structure. | |
8012 | * | |
8013 | * This routine is invoked by the worker thread to process a SLI4 slow-path | |
8014 | * ELS aborted xri. | |
8015 | **/ | |
8016 | void | |
8017 | lpfc_sli4_els_xri_aborted(struct lpfc_hba *phba, | |
8018 | struct sli4_wcqe_xri_aborted *axri) | |
8019 | { | |
8020 | uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri); | |
19ca7609 | 8021 | uint16_t rxid = bf_get(lpfc_wcqe_xa_remote_xid, axri); |
7851fe2c | 8022 | uint16_t lxri = 0; |
19ca7609 | 8023 | |
6fb120a7 JS |
8024 | struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; |
8025 | unsigned long iflag = 0; | |
19ca7609 | 8026 | struct lpfc_nodelist *ndlp; |
589a52d6 | 8027 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; |
6fb120a7 | 8028 | |
0f65ff68 JS |
8029 | spin_lock_irqsave(&phba->hbalock, iflag); |
8030 | spin_lock(&phba->sli4_hba.abts_sgl_list_lock); | |
6fb120a7 JS |
8031 | list_for_each_entry_safe(sglq_entry, sglq_next, |
8032 | &phba->sli4_hba.lpfc_abts_els_sgl_list, list) { | |
8033 | if (sglq_entry->sli4_xritag == xri) { | |
8034 | list_del(&sglq_entry->list); | |
19ca7609 JS |
8035 | ndlp = sglq_entry->ndlp; |
8036 | sglq_entry->ndlp = NULL; | |
6fb120a7 JS |
8037 | list_add_tail(&sglq_entry->list, |
8038 | &phba->sli4_hba.lpfc_sgl_list); | |
0f65ff68 JS |
8039 | sglq_entry->state = SGL_FREED; |
8040 | spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); | |
6fb120a7 | 8041 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
ee0f4fe1 JS |
8042 | lpfc_set_rrq_active(phba, ndlp, |
8043 | sglq_entry->sli4_lxritag, | |
8044 | rxid, 1); | |
589a52d6 JS |
8045 | |
8046 | /* Check if TXQ queue needs to be serviced */ | |
8047 | if (pring->txq_cnt) | |
8048 | lpfc_worker_wake_up(phba); | |
6fb120a7 JS |
8049 | return; |
8050 | } | |
8051 | } | |
0f65ff68 | 8052 | spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); |
7851fe2c JS |
8053 | lxri = lpfc_sli4_xri_inrange(phba, xri); |
8054 | if (lxri == NO_XRI) { | |
8055 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
8056 | return; | |
8057 | } | |
8058 | sglq_entry = __lpfc_get_active_sglq(phba, lxri); | |
0f65ff68 JS |
8059 | if (!sglq_entry || (sglq_entry->sli4_xritag != xri)) { |
8060 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
8061 | return; | |
8062 | } | |
8063 | sglq_entry->state = SGL_XRI_ABORTED; | |
8064 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
8065 | return; | |
6fb120a7 | 8066 | } |
086a345f JS |
8067 | |
8068 | /* lpfc_sli_abts_recover_port - Recover a port that failed a BLS_ABORT req. | |
8069 | * @vport: pointer to virtual port object. | |
8070 | * @ndlp: nodelist pointer for the impacted node. | |
8071 | * | |
8072 | * The driver calls this routine in response to an SLI4 XRI ABORT CQE | |
8073 | * or an SLI3 ASYNC_STATUS_CN event from the port. For either event, | |
8074 | * the driver is required to send a LOGO to the remote node before it | |
8075 | * attempts to recover its login to the remote node. | |
8076 | */ | |
8077 | void | |
8078 | lpfc_sli_abts_recover_port(struct lpfc_vport *vport, | |
8079 | struct lpfc_nodelist *ndlp) | |
8080 | { | |
8081 | struct Scsi_Host *shost; | |
8082 | struct lpfc_hba *phba; | |
8083 | unsigned long flags = 0; | |
8084 | ||
8085 | shost = lpfc_shost_from_vport(vport); | |
8086 | phba = vport->phba; | |
8087 | if (ndlp->nlp_state != NLP_STE_MAPPED_NODE) { | |
8088 | lpfc_printf_log(phba, KERN_INFO, | |
8089 | LOG_SLI, "3093 No rport recovery needed. " | |
8090 | "rport in state 0x%x\n", ndlp->nlp_state); | |
8091 | return; | |
8092 | } | |
8093 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
8094 | "3094 Start rport recovery on shost id 0x%x " | |
8095 | "fc_id 0x%06x vpi 0x%x rpi 0x%x state 0x%x " | |
8096 | "flags 0x%x\n", | |
8097 | shost->host_no, ndlp->nlp_DID, | |
8098 | vport->vpi, ndlp->nlp_rpi, ndlp->nlp_state, | |
8099 | ndlp->nlp_flag); | |
8100 | /* | |
8101 | * The rport is not responding. Remove the FCP-2 flag to prevent | |
8102 | * an ADISC in the follow-up recovery code. | |
8103 | */ | |
8104 | spin_lock_irqsave(shost->host_lock, flags); | |
8105 | ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; | |
8106 | spin_unlock_irqrestore(shost->host_lock, flags); | |
8107 | lpfc_issue_els_logo(vport, ndlp, 0); | |
8108 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE); | |
8109 | } | |
8110 |