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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)); |
dea3101e JB |
812 | if (rc >= 0) { |
813 | /* This side will initiate the PLOGI */ | |
2e0fef85 JS |
814 | spin_lock_irq(shost->host_lock); |
815 | vport->fc_flag |= FC_PT2PT_PLOGI; | |
816 | spin_unlock_irq(shost->host_lock); | |
dea3101e JB |
817 | |
818 | /* | |
819 | * N_Port ID cannot be 0, set our to LocalID the other | |
820 | * side will be RemoteID. | |
821 | */ | |
822 | ||
823 | /* not equal */ | |
824 | if (rc) | |
2e0fef85 | 825 | vport->fc_myDID = PT2PT_LocalID; |
dea3101e JB |
826 | |
827 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
828 | if (!mbox) | |
829 | goto fail; | |
830 | ||
831 | lpfc_config_link(phba, mbox); | |
832 | ||
833 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
ed957684 | 834 | mbox->vport = vport; |
0b727fea | 835 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
dea3101e JB |
836 | if (rc == MBX_NOT_FINISHED) { |
837 | mempool_free(mbox, phba->mbox_mem_pool); | |
838 | goto fail; | |
839 | } | |
939723a4 JS |
840 | |
841 | /* | |
842 | * For SLI4, the VFI/VPI are registered AFTER the | |
843 | * Nport with the higher WWPN sends the PLOGI with | |
844 | * an assigned NPortId. | |
845 | */ | |
846 | ||
847 | /* not equal */ | |
848 | if ((phba->sli_rev == LPFC_SLI_REV4) && rc) | |
849 | lpfc_issue_reg_vfi(vport); | |
850 | ||
e47c9093 JS |
851 | /* Decrement ndlp reference count indicating that ndlp can be |
852 | * safely released when other references to it are done. | |
853 | */ | |
329f9bc7 | 854 | lpfc_nlp_put(ndlp); |
dea3101e | 855 | |
2e0fef85 | 856 | ndlp = lpfc_findnode_did(vport, PT2PT_RemoteID); |
dea3101e JB |
857 | if (!ndlp) { |
858 | /* | |
859 | * Cannot find existing Fabric ndlp, so allocate a | |
860 | * new one | |
861 | */ | |
862 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
863 | if (!ndlp) | |
864 | goto fail; | |
2e0fef85 | 865 | lpfc_nlp_init(vport, ndlp, PT2PT_RemoteID); |
e47c9093 JS |
866 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { |
867 | ndlp = lpfc_enable_node(vport, ndlp, | |
868 | NLP_STE_UNUSED_NODE); | |
869 | if(!ndlp) | |
870 | goto fail; | |
dea3101e JB |
871 | } |
872 | ||
873 | memcpy(&ndlp->nlp_portname, &sp->portName, | |
2e0fef85 | 874 | sizeof(struct lpfc_name)); |
dea3101e | 875 | memcpy(&ndlp->nlp_nodename, &sp->nodeName, |
2e0fef85 | 876 | sizeof(struct lpfc_name)); |
e47c9093 | 877 | /* Set state will put ndlp onto node list if not already done */ |
2e0fef85 JS |
878 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
879 | spin_lock_irq(shost->host_lock); | |
dea3101e | 880 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 | 881 | spin_unlock_irq(shost->host_lock); |
e47c9093 JS |
882 | } else |
883 | /* This side will wait for the PLOGI, decrement ndlp reference | |
884 | * count indicating that ndlp can be released when other | |
885 | * references to it are done. | |
886 | */ | |
329f9bc7 | 887 | lpfc_nlp_put(ndlp); |
dea3101e | 888 | |
09372820 JS |
889 | /* If we are pt2pt with another NPort, force NPIV off! */ |
890 | phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED; | |
891 | ||
2e0fef85 JS |
892 | spin_lock_irq(shost->host_lock); |
893 | vport->fc_flag |= FC_PT2PT; | |
894 | spin_unlock_irq(shost->host_lock); | |
dea3101e JB |
895 | |
896 | /* Start discovery - this should just do CLEAR_LA */ | |
2e0fef85 | 897 | lpfc_disc_start(vport); |
dea3101e | 898 | return 0; |
92d7f7b0 | 899 | fail: |
dea3101e JB |
900 | return -ENXIO; |
901 | } | |
902 | ||
e59058c4 | 903 | /** |
3621a710 | 904 | * lpfc_cmpl_els_flogi - Completion callback function for flogi |
e59058c4 JS |
905 | * @phba: pointer to lpfc hba data structure. |
906 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
907 | * @rspiocb: pointer to lpfc response iocb data structure. | |
908 | * | |
909 | * This routine is the top-level completion callback function for issuing | |
910 | * a Fabric Login (FLOGI) command. If the response IOCB reported error, | |
911 | * the lpfc_els_retry() routine shall be invoked to retry the FLOGI. If | |
912 | * retry has been made (either immediately or delayed with lpfc_els_retry() | |
913 | * returning 1), the command IOCB will be released and function returned. | |
914 | * If the retry attempt has been given up (possibly reach the maximum | |
915 | * number of retries), one additional decrement of ndlp reference shall be | |
916 | * invoked before going out after releasing the command IOCB. This will | |
917 | * actually release the remote node (Note, lpfc_els_free_iocb() will also | |
918 | * invoke one decrement of ndlp reference count). If no error reported in | |
919 | * the IOCB status, the command Port ID field is used to determine whether | |
920 | * this is a point-to-point topology or a fabric topology: if the Port ID | |
921 | * field is assigned, it is a fabric topology; otherwise, it is a | |
922 | * point-to-point topology. The routine lpfc_cmpl_els_flogi_fabric() or | |
923 | * lpfc_cmpl_els_flogi_nport() shall be invoked accordingly to handle the | |
924 | * specific topology completion conditions. | |
925 | **/ | |
dea3101e | 926 | static void |
329f9bc7 JS |
927 | lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
928 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 929 | { |
2e0fef85 JS |
930 | struct lpfc_vport *vport = cmdiocb->vport; |
931 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e JB |
932 | IOCB_t *irsp = &rspiocb->iocb; |
933 | struct lpfc_nodelist *ndlp = cmdiocb->context1; | |
934 | struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp; | |
935 | struct serv_parm *sp; | |
0c9ab6f5 | 936 | uint16_t fcf_index; |
dea3101e JB |
937 | int rc; |
938 | ||
939 | /* Check to see if link went down during discovery */ | |
2e0fef85 | 940 | if (lpfc_els_chk_latt(vport)) { |
fa4066b6 JS |
941 | /* One additional decrement on node reference count to |
942 | * trigger the release of the node | |
943 | */ | |
329f9bc7 | 944 | lpfc_nlp_put(ndlp); |
dea3101e JB |
945 | goto out; |
946 | } | |
947 | ||
858c9f6c JS |
948 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
949 | "FLOGI cmpl: status:x%x/x%x state:x%x", | |
950 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
951 | vport->port_state); | |
952 | ||
dea3101e | 953 | if (irsp->ulpStatus) { |
0c9ab6f5 | 954 | /* |
a93ff37a | 955 | * In case of FIP mode, perform roundrobin FCF failover |
0c9ab6f5 JS |
956 | * due to new FCF discovery |
957 | */ | |
958 | if ((phba->hba_flag & HBA_FIP_SUPPORT) && | |
80c17849 JS |
959 | (phba->fcf.fcf_flag & FCF_DISCOVERY)) { |
960 | if (phba->link_state < LPFC_LINK_UP) | |
961 | goto stop_rr_fcf_flogi; | |
962 | if ((phba->fcoe_cvl_eventtag_attn == | |
963 | phba->fcoe_cvl_eventtag) && | |
964 | (irsp->ulpStatus == IOSTAT_LOCAL_REJECT) && | |
965 | (irsp->un.ulpWord[4] == IOERR_SLI_ABORTED)) | |
966 | goto stop_rr_fcf_flogi; | |
967 | else | |
968 | phba->fcoe_cvl_eventtag_attn = | |
969 | phba->fcoe_cvl_eventtag; | |
0c9ab6f5 | 970 | lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS, |
a93ff37a JS |
971 | "2611 FLOGI failed on FCF (x%x), " |
972 | "status:x%x/x%x, tmo:x%x, perform " | |
973 | "roundrobin FCF failover\n", | |
38b92ef8 JS |
974 | phba->fcf.current_rec.fcf_indx, |
975 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
976 | irsp->ulpTimeout); | |
7d791df7 JS |
977 | lpfc_sli4_set_fcf_flogi_fail(phba, |
978 | phba->fcf.current_rec.fcf_indx); | |
0c9ab6f5 | 979 | fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba); |
a93ff37a JS |
980 | rc = lpfc_sli4_fcf_rr_next_proc(vport, fcf_index); |
981 | if (rc) | |
982 | goto out; | |
0c9ab6f5 JS |
983 | } |
984 | ||
80c17849 | 985 | stop_rr_fcf_flogi: |
38b92ef8 JS |
986 | /* FLOGI failure */ |
987 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
988 | "2858 FLOGI failure Status:x%x/x%x TMO:x%x\n", | |
989 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
990 | irsp->ulpTimeout); | |
991 | ||
dea3101e | 992 | /* Check for retry */ |
2e0fef85 | 993 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) |
dea3101e | 994 | goto out; |
2e0fef85 | 995 | |
76a95d75 JS |
996 | /* FLOGI failure */ |
997 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
998 | "0100 FLOGI failure Status:x%x/x%x TMO:x%x\n", | |
999 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1000 | irsp->ulpTimeout); | |
1001 | ||
dea3101e | 1002 | /* FLOGI failed, so there is no fabric */ |
2e0fef85 JS |
1003 | spin_lock_irq(shost->host_lock); |
1004 | vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
1005 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 1006 | |
329f9bc7 | 1007 | /* If private loop, then allow max outstanding els to be |
dea3101e JB |
1008 | * LPFC_MAX_DISC_THREADS (32). Scanning in the case of no |
1009 | * alpa map would take too long otherwise. | |
1010 | */ | |
1b51197d | 1011 | if (phba->alpa_map[0] == 0) |
3de2a653 | 1012 | vport->cfg_discovery_threads = LPFC_MAX_DISC_THREADS; |
ff78d8f9 JS |
1013 | if ((phba->sli_rev == LPFC_SLI_REV4) && |
1014 | (!(vport->fc_flag & FC_VFI_REGISTERED) || | |
1015 | (vport->fc_prevDID != vport->fc_myDID))) { | |
1016 | if (vport->fc_flag & FC_VFI_REGISTERED) | |
1017 | lpfc_sli4_unreg_all_rpis(vport); | |
1018 | lpfc_issue_reg_vfi(vport); | |
1019 | lpfc_nlp_put(ndlp); | |
1020 | goto out; | |
dea3101e | 1021 | } |
dea3101e JB |
1022 | goto flogifail; |
1023 | } | |
695a814e JS |
1024 | spin_lock_irq(shost->host_lock); |
1025 | vport->fc_flag &= ~FC_VPORT_CVL_RCVD; | |
4b40c59e | 1026 | vport->fc_flag &= ~FC_VPORT_LOGO_RCVD; |
695a814e | 1027 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
1028 | |
1029 | /* | |
1030 | * The FLogI succeeded. Sync the data for the CPU before | |
1031 | * accessing it. | |
1032 | */ | |
1033 | prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); | |
1034 | ||
1035 | sp = prsp->virt + sizeof(uint32_t); | |
1036 | ||
1037 | /* FLOGI completes successfully */ | |
e8b62011 | 1038 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
af901ca1 | 1039 | "0101 FLOGI completes successfully " |
e8b62011 JS |
1040 | "Data: x%x x%x x%x x%x\n", |
1041 | irsp->un.ulpWord[4], sp->cmn.e_d_tov, | |
1042 | sp->cmn.w2.r_a_tov, sp->cmn.edtovResolution); | |
dea3101e | 1043 | |
2e0fef85 | 1044 | if (vport->port_state == LPFC_FLOGI) { |
dea3101e JB |
1045 | /* |
1046 | * If Common Service Parameters indicate Nport | |
1047 | * we are point to point, if Fport we are Fabric. | |
1048 | */ | |
1049 | if (sp->cmn.fPort) | |
2e0fef85 | 1050 | rc = lpfc_cmpl_els_flogi_fabric(vport, ndlp, sp, irsp); |
76a95d75 | 1051 | else if (!(phba->hba_flag & HBA_FCOE_MODE)) |
2e0fef85 | 1052 | rc = lpfc_cmpl_els_flogi_nport(vport, ndlp, sp); |
dbb6b3ab JS |
1053 | else { |
1054 | lpfc_printf_vlog(vport, KERN_ERR, | |
1055 | LOG_FIP | LOG_ELS, | |
1056 | "2831 FLOGI response with cleared Fabric " | |
1057 | "bit fcf_index 0x%x " | |
1058 | "Switch Name %02x%02x%02x%02x%02x%02x%02x%02x " | |
1059 | "Fabric Name " | |
1060 | "%02x%02x%02x%02x%02x%02x%02x%02x\n", | |
1061 | phba->fcf.current_rec.fcf_indx, | |
1062 | phba->fcf.current_rec.switch_name[0], | |
1063 | phba->fcf.current_rec.switch_name[1], | |
1064 | phba->fcf.current_rec.switch_name[2], | |
1065 | phba->fcf.current_rec.switch_name[3], | |
1066 | phba->fcf.current_rec.switch_name[4], | |
1067 | phba->fcf.current_rec.switch_name[5], | |
1068 | phba->fcf.current_rec.switch_name[6], | |
1069 | phba->fcf.current_rec.switch_name[7], | |
1070 | phba->fcf.current_rec.fabric_name[0], | |
1071 | phba->fcf.current_rec.fabric_name[1], | |
1072 | phba->fcf.current_rec.fabric_name[2], | |
1073 | phba->fcf.current_rec.fabric_name[3], | |
1074 | phba->fcf.current_rec.fabric_name[4], | |
1075 | phba->fcf.current_rec.fabric_name[5], | |
1076 | phba->fcf.current_rec.fabric_name[6], | |
1077 | phba->fcf.current_rec.fabric_name[7]); | |
1078 | lpfc_nlp_put(ndlp); | |
1079 | spin_lock_irq(&phba->hbalock); | |
1080 | phba->fcf.fcf_flag &= ~FCF_DISCOVERY; | |
a93ff37a | 1081 | phba->hba_flag &= ~(FCF_RR_INPROG | HBA_DEVLOSS_TMO); |
dbb6b3ab JS |
1082 | spin_unlock_irq(&phba->hbalock); |
1083 | goto out; | |
1084 | } | |
0c9ab6f5 JS |
1085 | if (!rc) { |
1086 | /* Mark the FCF discovery process done */ | |
999d813f JS |
1087 | if (phba->hba_flag & HBA_FIP_SUPPORT) |
1088 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FIP | | |
1089 | LOG_ELS, | |
a93ff37a JS |
1090 | "2769 FLOGI to FCF (x%x) " |
1091 | "completed successfully\n", | |
999d813f | 1092 | phba->fcf.current_rec.fcf_indx); |
0c9ab6f5 JS |
1093 | spin_lock_irq(&phba->hbalock); |
1094 | phba->fcf.fcf_flag &= ~FCF_DISCOVERY; | |
a93ff37a | 1095 | phba->hba_flag &= ~(FCF_RR_INPROG | HBA_DEVLOSS_TMO); |
0c9ab6f5 | 1096 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 1097 | goto out; |
0c9ab6f5 | 1098 | } |
dea3101e JB |
1099 | } |
1100 | ||
1101 | flogifail: | |
329f9bc7 | 1102 | lpfc_nlp_put(ndlp); |
dea3101e | 1103 | |
858c9f6c | 1104 | if (!lpfc_error_lost_link(irsp)) { |
dea3101e | 1105 | /* FLOGI failed, so just use loop map to make discovery list */ |
2e0fef85 | 1106 | lpfc_disc_list_loopmap(vport); |
dea3101e JB |
1107 | |
1108 | /* Start discovery */ | |
2e0fef85 | 1109 | lpfc_disc_start(vport); |
87af33fe JS |
1110 | } else if (((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) || |
1111 | ((irsp->un.ulpWord[4] != IOERR_SLI_ABORTED) && | |
1112 | (irsp->un.ulpWord[4] != IOERR_SLI_DOWN))) && | |
1113 | (phba->link_state != LPFC_CLEAR_LA)) { | |
1114 | /* If FLOGI failed enable link interrupt. */ | |
1115 | lpfc_issue_clear_la(phba, vport); | |
dea3101e | 1116 | } |
dea3101e JB |
1117 | out: |
1118 | lpfc_els_free_iocb(phba, cmdiocb); | |
1119 | } | |
1120 | ||
e59058c4 | 1121 | /** |
3621a710 | 1122 | * lpfc_issue_els_flogi - Issue an flogi iocb command for a vport |
e59058c4 JS |
1123 | * @vport: pointer to a host virtual N_Port data structure. |
1124 | * @ndlp: pointer to a node-list data structure. | |
1125 | * @retry: number of retries to the command IOCB. | |
1126 | * | |
1127 | * This routine issues a Fabric Login (FLOGI) Request ELS command | |
1128 | * for a @vport. The initiator service parameters are put into the payload | |
1129 | * of the FLOGI Request IOCB and the top-level callback function pointer | |
1130 | * to lpfc_cmpl_els_flogi() routine is put to the IOCB completion callback | |
1131 | * function field. The lpfc_issue_fabric_iocb routine is invoked to send | |
1132 | * out FLOGI ELS command with one outstanding fabric IOCB at a time. | |
1133 | * | |
1134 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
1135 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
1136 | * will be stored into the context1 field of the IOCB for the completion | |
1137 | * callback function to the FLOGI ELS command. | |
1138 | * | |
1139 | * Return code | |
1140 | * 0 - successfully issued flogi iocb for @vport | |
1141 | * 1 - failed to issue flogi iocb for @vport | |
1142 | **/ | |
dea3101e | 1143 | static int |
2e0fef85 | 1144 | lpfc_issue_els_flogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
dea3101e JB |
1145 | uint8_t retry) |
1146 | { | |
2e0fef85 | 1147 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
1148 | struct serv_parm *sp; |
1149 | IOCB_t *icmd; | |
1150 | struct lpfc_iocbq *elsiocb; | |
1151 | struct lpfc_sli_ring *pring; | |
1152 | uint8_t *pcmd; | |
1153 | uint16_t cmdsize; | |
1154 | uint32_t tmo; | |
1155 | int rc; | |
1156 | ||
1157 | pring = &phba->sli.ring[LPFC_ELS_RING]; | |
1158 | ||
92d7f7b0 | 1159 | cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); |
2e0fef85 JS |
1160 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
1161 | ndlp->nlp_DID, ELS_CMD_FLOGI); | |
92d7f7b0 | 1162 | |
488d1469 | 1163 | if (!elsiocb) |
c9f8735b | 1164 | return 1; |
dea3101e JB |
1165 | |
1166 | icmd = &elsiocb->iocb; | |
1167 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
1168 | ||
1169 | /* For FLOGI request, remainder of payload is service parameters */ | |
1170 | *((uint32_t *) (pcmd)) = ELS_CMD_FLOGI; | |
92d7f7b0 JS |
1171 | pcmd += sizeof(uint32_t); |
1172 | memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); | |
dea3101e JB |
1173 | sp = (struct serv_parm *) pcmd; |
1174 | ||
1175 | /* Setup CSPs accordingly for Fabric */ | |
1176 | sp->cmn.e_d_tov = 0; | |
1177 | sp->cmn.w2.r_a_tov = 0; | |
df9e1b59 | 1178 | sp->cmn.virtual_fabric_support = 0; |
dea3101e JB |
1179 | sp->cls1.classValid = 0; |
1180 | sp->cls2.seqDelivery = 1; | |
1181 | sp->cls3.seqDelivery = 1; | |
1182 | if (sp->cmn.fcphLow < FC_PH3) | |
1183 | sp->cmn.fcphLow = FC_PH3; | |
1184 | if (sp->cmn.fcphHigh < FC_PH3) | |
1185 | sp->cmn.fcphHigh = FC_PH3; | |
1186 | ||
c31098ce JS |
1187 | if (phba->sli_rev == LPFC_SLI_REV4) { |
1188 | if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == | |
1189 | LPFC_SLI_INTF_IF_TYPE_0) { | |
1190 | elsiocb->iocb.ulpCt_h = ((SLI4_CT_FCFI >> 1) & 1); | |
1191 | elsiocb->iocb.ulpCt_l = (SLI4_CT_FCFI & 1); | |
1192 | /* FLOGI needs to be 3 for WQE FCFI */ | |
1193 | /* Set the fcfi to the fcfi we registered with */ | |
1194 | elsiocb->iocb.ulpContext = phba->fcf.fcfi; | |
1195 | } | |
5248a749 JS |
1196 | } else { |
1197 | if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { | |
1198 | sp->cmn.request_multiple_Nport = 1; | |
1199 | /* For FLOGI, Let FLOGI rsp set the NPortID for VPI 0 */ | |
1200 | icmd->ulpCt_h = 1; | |
1201 | icmd->ulpCt_l = 0; | |
1202 | } else | |
1203 | sp->cmn.request_multiple_Nport = 0; | |
92d7f7b0 JS |
1204 | } |
1205 | ||
76a95d75 | 1206 | if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) { |
858c9f6c JS |
1207 | icmd->un.elsreq64.myID = 0; |
1208 | icmd->un.elsreq64.fl = 1; | |
1209 | } | |
1210 | ||
dea3101e JB |
1211 | tmo = phba->fc_ratov; |
1212 | phba->fc_ratov = LPFC_DISC_FLOGI_TMO; | |
2e0fef85 | 1213 | lpfc_set_disctmo(vport); |
dea3101e JB |
1214 | phba->fc_ratov = tmo; |
1215 | ||
1216 | phba->fc_stat.elsXmitFLOGI++; | |
1217 | elsiocb->iocb_cmpl = lpfc_cmpl_els_flogi; | |
858c9f6c JS |
1218 | |
1219 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, | |
1220 | "Issue FLOGI: opt:x%x", | |
1221 | phba->sli3_options, 0, 0); | |
1222 | ||
92d7f7b0 | 1223 | rc = lpfc_issue_fabric_iocb(phba, elsiocb); |
dea3101e JB |
1224 | if (rc == IOCB_ERROR) { |
1225 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 1226 | return 1; |
dea3101e | 1227 | } |
c9f8735b | 1228 | return 0; |
dea3101e JB |
1229 | } |
1230 | ||
e59058c4 | 1231 | /** |
3621a710 | 1232 | * lpfc_els_abort_flogi - Abort all outstanding flogi iocbs |
e59058c4 JS |
1233 | * @phba: pointer to lpfc hba data structure. |
1234 | * | |
1235 | * This routine aborts all the outstanding Fabric Login (FLOGI) IOCBs | |
1236 | * with a @phba. This routine walks all the outstanding IOCBs on the txcmplq | |
1237 | * list and issues an abort IOCB commond on each outstanding IOCB that | |
1238 | * contains a active Fabric_DID ndlp. Note that this function is to issue | |
1239 | * the abort IOCB command on all the outstanding IOCBs, thus when this | |
1240 | * function returns, it does not guarantee all the IOCBs are actually aborted. | |
1241 | * | |
1242 | * Return code | |
3ad2f3fb | 1243 | * 0 - Successfully issued abort iocb on all outstanding flogis (Always 0) |
e59058c4 | 1244 | **/ |
dea3101e | 1245 | int |
2e0fef85 | 1246 | lpfc_els_abort_flogi(struct lpfc_hba *phba) |
dea3101e JB |
1247 | { |
1248 | struct lpfc_sli_ring *pring; | |
1249 | struct lpfc_iocbq *iocb, *next_iocb; | |
1250 | struct lpfc_nodelist *ndlp; | |
1251 | IOCB_t *icmd; | |
1252 | ||
1253 | /* Abort outstanding I/O on NPort <nlp_DID> */ | |
1254 | lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, | |
e8b62011 JS |
1255 | "0201 Abort outstanding I/O on NPort x%x\n", |
1256 | Fabric_DID); | |
dea3101e JB |
1257 | |
1258 | pring = &phba->sli.ring[LPFC_ELS_RING]; | |
1259 | ||
1260 | /* | |
1261 | * Check the txcmplq for an iocb that matches the nport the driver is | |
1262 | * searching for. | |
1263 | */ | |
2e0fef85 | 1264 | spin_lock_irq(&phba->hbalock); |
dea3101e JB |
1265 | list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { |
1266 | icmd = &iocb->iocb; | |
1b51197d | 1267 | if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR) { |
dea3101e | 1268 | ndlp = (struct lpfc_nodelist *)(iocb->context1); |
58da1ffb JS |
1269 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && |
1270 | (ndlp->nlp_DID == Fabric_DID)) | |
07951076 | 1271 | lpfc_sli_issue_abort_iotag(phba, pring, iocb); |
dea3101e JB |
1272 | } |
1273 | } | |
2e0fef85 | 1274 | spin_unlock_irq(&phba->hbalock); |
dea3101e JB |
1275 | |
1276 | return 0; | |
1277 | } | |
1278 | ||
e59058c4 | 1279 | /** |
3621a710 | 1280 | * lpfc_initial_flogi - Issue an initial fabric login for a vport |
e59058c4 JS |
1281 | * @vport: pointer to a host virtual N_Port data structure. |
1282 | * | |
1283 | * This routine issues an initial Fabric Login (FLOGI) for the @vport | |
1284 | * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from | |
1285 | * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and | |
1286 | * put it into the @vport's ndlp list. If an inactive ndlp found on the list, | |
1287 | * it will just be enabled and made active. The lpfc_issue_els_flogi() routine | |
1288 | * is then invoked with the @vport and the ndlp to perform the FLOGI for the | |
1289 | * @vport. | |
1290 | * | |
1291 | * Return code | |
1292 | * 0 - failed to issue initial flogi for @vport | |
1293 | * 1 - successfully issued initial flogi for @vport | |
1294 | **/ | |
dea3101e | 1295 | int |
2e0fef85 | 1296 | lpfc_initial_flogi(struct lpfc_vport *vport) |
dea3101e | 1297 | { |
2e0fef85 | 1298 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
1299 | struct lpfc_nodelist *ndlp; |
1300 | ||
98c9ea5c JS |
1301 | vport->port_state = LPFC_FLOGI; |
1302 | lpfc_set_disctmo(vport); | |
1303 | ||
c9f8735b | 1304 | /* First look for the Fabric ndlp */ |
2e0fef85 | 1305 | ndlp = lpfc_findnode_did(vport, Fabric_DID); |
c9f8735b | 1306 | if (!ndlp) { |
dea3101e | 1307 | /* Cannot find existing Fabric ndlp, so allocate a new one */ |
c9f8735b JW |
1308 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); |
1309 | if (!ndlp) | |
1310 | return 0; | |
2e0fef85 | 1311 | lpfc_nlp_init(vport, ndlp, Fabric_DID); |
6fb120a7 JS |
1312 | /* Set the node type */ |
1313 | ndlp->nlp_type |= NLP_FABRIC; | |
e47c9093 JS |
1314 | /* Put ndlp onto node list */ |
1315 | lpfc_enqueue_node(vport, ndlp); | |
1316 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
1317 | /* re-setup ndlp without removing from node list */ | |
1318 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
1319 | if (!ndlp) | |
1320 | return 0; | |
dea3101e | 1321 | } |
87af33fe | 1322 | |
5ac6b303 | 1323 | if (lpfc_issue_els_flogi(vport, ndlp, 0)) { |
fa4066b6 JS |
1324 | /* This decrement of reference count to node shall kick off |
1325 | * the release of the node. | |
1326 | */ | |
329f9bc7 | 1327 | lpfc_nlp_put(ndlp); |
5ac6b303 JS |
1328 | return 0; |
1329 | } | |
c9f8735b | 1330 | return 1; |
dea3101e JB |
1331 | } |
1332 | ||
e59058c4 | 1333 | /** |
3621a710 | 1334 | * lpfc_initial_fdisc - Issue an initial fabric discovery for a vport |
e59058c4 JS |
1335 | * @vport: pointer to a host virtual N_Port data structure. |
1336 | * | |
1337 | * This routine issues an initial Fabric Discover (FDISC) for the @vport | |
1338 | * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from | |
1339 | * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and | |
1340 | * put it into the @vport's ndlp list. If an inactive ndlp found on the list, | |
1341 | * it will just be enabled and made active. The lpfc_issue_els_fdisc() routine | |
1342 | * is then invoked with the @vport and the ndlp to perform the FDISC for the | |
1343 | * @vport. | |
1344 | * | |
1345 | * Return code | |
1346 | * 0 - failed to issue initial fdisc for @vport | |
1347 | * 1 - successfully issued initial fdisc for @vport | |
1348 | **/ | |
92d7f7b0 JS |
1349 | int |
1350 | lpfc_initial_fdisc(struct lpfc_vport *vport) | |
1351 | { | |
1352 | struct lpfc_hba *phba = vport->phba; | |
1353 | struct lpfc_nodelist *ndlp; | |
1354 | ||
1355 | /* First look for the Fabric ndlp */ | |
1356 | ndlp = lpfc_findnode_did(vport, Fabric_DID); | |
1357 | if (!ndlp) { | |
1358 | /* Cannot find existing Fabric ndlp, so allocate a new one */ | |
1359 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
1360 | if (!ndlp) | |
1361 | return 0; | |
1362 | lpfc_nlp_init(vport, ndlp, Fabric_DID); | |
e47c9093 JS |
1363 | /* Put ndlp onto node list */ |
1364 | lpfc_enqueue_node(vport, ndlp); | |
1365 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
1366 | /* re-setup ndlp without removing from node list */ | |
1367 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
1368 | if (!ndlp) | |
1369 | return 0; | |
92d7f7b0 | 1370 | } |
e47c9093 | 1371 | |
92d7f7b0 | 1372 | if (lpfc_issue_els_fdisc(vport, ndlp, 0)) { |
fa4066b6 JS |
1373 | /* decrement node reference count to trigger the release of |
1374 | * the node. | |
1375 | */ | |
92d7f7b0 | 1376 | lpfc_nlp_put(ndlp); |
fa4066b6 | 1377 | return 0; |
92d7f7b0 JS |
1378 | } |
1379 | return 1; | |
1380 | } | |
87af33fe | 1381 | |
e59058c4 | 1382 | /** |
3621a710 | 1383 | * lpfc_more_plogi - Check and issue remaining plogis for a vport |
e59058c4 JS |
1384 | * @vport: pointer to a host virtual N_Port data structure. |
1385 | * | |
1386 | * This routine checks whether there are more remaining Port Logins | |
1387 | * (PLOGI) to be issued for the @vport. If so, it will invoke the routine | |
1388 | * lpfc_els_disc_plogi() to go through the Node Port Recovery (NPR) nodes | |
1389 | * to issue ELS PLOGIs up to the configured discover threads with the | |
1390 | * @vport (@vport->cfg_discovery_threads). The function also decrement | |
1391 | * the @vport's num_disc_node by 1 if it is not already 0. | |
1392 | **/ | |
87af33fe | 1393 | void |
2e0fef85 | 1394 | lpfc_more_plogi(struct lpfc_vport *vport) |
dea3101e JB |
1395 | { |
1396 | int sentplogi; | |
1397 | ||
2e0fef85 JS |
1398 | if (vport->num_disc_nodes) |
1399 | vport->num_disc_nodes--; | |
dea3101e JB |
1400 | |
1401 | /* Continue discovery with <num_disc_nodes> PLOGIs to go */ | |
e8b62011 JS |
1402 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
1403 | "0232 Continue discovery with %d PLOGIs to go " | |
1404 | "Data: x%x x%x x%x\n", | |
1405 | vport->num_disc_nodes, vport->fc_plogi_cnt, | |
1406 | vport->fc_flag, vport->port_state); | |
dea3101e | 1407 | /* Check to see if there are more PLOGIs to be sent */ |
2e0fef85 JS |
1408 | if (vport->fc_flag & FC_NLP_MORE) |
1409 | /* go thru NPR nodes and issue any remaining ELS PLOGIs */ | |
1410 | sentplogi = lpfc_els_disc_plogi(vport); | |
1411 | ||
dea3101e JB |
1412 | return; |
1413 | } | |
1414 | ||
e59058c4 | 1415 | /** |
3621a710 | 1416 | * lpfc_plogi_confirm_nport - Confirm pologi wwpn matches stored ndlp |
e59058c4 JS |
1417 | * @phba: pointer to lpfc hba data structure. |
1418 | * @prsp: pointer to response IOCB payload. | |
1419 | * @ndlp: pointer to a node-list data structure. | |
1420 | * | |
1421 | * This routine checks and indicates whether the WWPN of an N_Port, retrieved | |
1422 | * from a PLOGI, matches the WWPN that is stored in the @ndlp for that N_POrt. | |
1423 | * The following cases are considered N_Port confirmed: | |
1424 | * 1) The N_Port is a Fabric ndlp; 2) The @ndlp is on vport list and matches | |
1425 | * the WWPN of the N_Port logged into; 3) The @ndlp is not on vport list but | |
1426 | * it does not have WWPN assigned either. If the WWPN is confirmed, the | |
1427 | * pointer to the @ndlp will be returned. If the WWPN is not confirmed: | |
1428 | * 1) if there is a node on vport list other than the @ndlp with the same | |
1429 | * WWPN of the N_Port PLOGI logged into, the lpfc_unreg_rpi() will be invoked | |
1430 | * on that node to release the RPI associated with the node; 2) if there is | |
1431 | * no node found on vport list with the same WWPN of the N_Port PLOGI logged | |
1432 | * into, a new node shall be allocated (or activated). In either case, the | |
1433 | * parameters of the @ndlp shall be copied to the new_ndlp, the @ndlp shall | |
1434 | * be released and the new_ndlp shall be put on to the vport node list and | |
1435 | * its pointer returned as the confirmed node. | |
1436 | * | |
1437 | * Note that before the @ndlp got "released", the keepDID from not-matching | |
1438 | * or inactive "new_ndlp" on the vport node list is assigned to the nlp_DID | |
1439 | * of the @ndlp. This is because the release of @ndlp is actually to put it | |
1440 | * into an inactive state on the vport node list and the vport node list | |
1441 | * management algorithm does not allow two node with a same DID. | |
1442 | * | |
1443 | * Return code | |
1444 | * pointer to the PLOGI N_Port @ndlp | |
1445 | **/ | |
488d1469 | 1446 | static struct lpfc_nodelist * |
92d7f7b0 | 1447 | lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp, |
488d1469 JS |
1448 | struct lpfc_nodelist *ndlp) |
1449 | { | |
2e0fef85 | 1450 | struct lpfc_vport *vport = ndlp->vport; |
488d1469 | 1451 | struct lpfc_nodelist *new_ndlp; |
0ff10d46 JS |
1452 | struct lpfc_rport_data *rdata; |
1453 | struct fc_rport *rport; | |
488d1469 | 1454 | struct serv_parm *sp; |
92d7f7b0 | 1455 | uint8_t name[sizeof(struct lpfc_name)]; |
58da1ffb | 1456 | uint32_t rc, keepDID = 0; |
38b92ef8 JS |
1457 | int put_node; |
1458 | int put_rport; | |
19ca7609 | 1459 | struct lpfc_node_rrqs rrq; |
488d1469 | 1460 | |
2fb9bd8b JS |
1461 | /* Fabric nodes can have the same WWPN so we don't bother searching |
1462 | * by WWPN. Just return the ndlp that was given to us. | |
1463 | */ | |
1464 | if (ndlp->nlp_type & NLP_FABRIC) | |
1465 | return ndlp; | |
1466 | ||
92d7f7b0 | 1467 | sp = (struct serv_parm *) ((uint8_t *) prsp + sizeof(uint32_t)); |
685f0bf7 | 1468 | memset(name, 0, sizeof(struct lpfc_name)); |
488d1469 | 1469 | |
685f0bf7 | 1470 | /* Now we find out if the NPort we are logging into, matches the WWPN |
488d1469 JS |
1471 | * we have for that ndlp. If not, we have some work to do. |
1472 | */ | |
2e0fef85 | 1473 | new_ndlp = lpfc_findnode_wwpn(vport, &sp->portName); |
488d1469 | 1474 | |
e47c9093 | 1475 | if (new_ndlp == ndlp && NLP_CHK_NODE_ACT(new_ndlp)) |
488d1469 | 1476 | return ndlp; |
19ca7609 | 1477 | memset(&rrq.xri_bitmap, 0, sizeof(new_ndlp->active_rrqs.xri_bitmap)); |
488d1469 JS |
1478 | |
1479 | if (!new_ndlp) { | |
2e0fef85 JS |
1480 | rc = memcmp(&ndlp->nlp_portname, name, |
1481 | sizeof(struct lpfc_name)); | |
92795650 JS |
1482 | if (!rc) |
1483 | return ndlp; | |
488d1469 JS |
1484 | new_ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_ATOMIC); |
1485 | if (!new_ndlp) | |
1486 | return ndlp; | |
2e0fef85 | 1487 | lpfc_nlp_init(vport, new_ndlp, ndlp->nlp_DID); |
e47c9093 | 1488 | } else if (!NLP_CHK_NODE_ACT(new_ndlp)) { |
58da1ffb JS |
1489 | rc = memcmp(&ndlp->nlp_portname, name, |
1490 | sizeof(struct lpfc_name)); | |
1491 | if (!rc) | |
1492 | return ndlp; | |
e47c9093 JS |
1493 | new_ndlp = lpfc_enable_node(vport, new_ndlp, |
1494 | NLP_STE_UNUSED_NODE); | |
1495 | if (!new_ndlp) | |
1496 | return ndlp; | |
58da1ffb | 1497 | keepDID = new_ndlp->nlp_DID; |
19ca7609 JS |
1498 | if (phba->sli_rev == LPFC_SLI_REV4) |
1499 | memcpy(&rrq.xri_bitmap, | |
1500 | &new_ndlp->active_rrqs.xri_bitmap, | |
1501 | sizeof(new_ndlp->active_rrqs.xri_bitmap)); | |
1502 | } else { | |
58da1ffb | 1503 | keepDID = new_ndlp->nlp_DID; |
19ca7609 JS |
1504 | if (phba->sli_rev == LPFC_SLI_REV4) |
1505 | memcpy(&rrq.xri_bitmap, | |
1506 | &new_ndlp->active_rrqs.xri_bitmap, | |
1507 | sizeof(new_ndlp->active_rrqs.xri_bitmap)); | |
1508 | } | |
488d1469 | 1509 | |
2e0fef85 | 1510 | lpfc_unreg_rpi(vport, new_ndlp); |
488d1469 | 1511 | new_ndlp->nlp_DID = ndlp->nlp_DID; |
92795650 | 1512 | new_ndlp->nlp_prev_state = ndlp->nlp_prev_state; |
19ca7609 JS |
1513 | if (phba->sli_rev == LPFC_SLI_REV4) |
1514 | memcpy(new_ndlp->active_rrqs.xri_bitmap, | |
1515 | &ndlp->active_rrqs.xri_bitmap, | |
1516 | sizeof(ndlp->active_rrqs.xri_bitmap)); | |
0ff10d46 JS |
1517 | |
1518 | if (ndlp->nlp_flag & NLP_NPR_2B_DISC) | |
1519 | new_ndlp->nlp_flag |= NLP_NPR_2B_DISC; | |
1520 | ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; | |
1521 | ||
e47c9093 | 1522 | /* Set state will put new_ndlp on to node list if not already done */ |
2e0fef85 | 1523 | lpfc_nlp_set_state(vport, new_ndlp, ndlp->nlp_state); |
488d1469 | 1524 | |
2e0fef85 | 1525 | /* Move this back to NPR state */ |
87af33fe JS |
1526 | if (memcmp(&ndlp->nlp_portname, name, sizeof(struct lpfc_name)) == 0) { |
1527 | /* The new_ndlp is replacing ndlp totally, so we need | |
1528 | * to put ndlp on UNUSED list and try to free it. | |
1529 | */ | |
0ff10d46 JS |
1530 | |
1531 | /* Fix up the rport accordingly */ | |
1532 | rport = ndlp->rport; | |
1533 | if (rport) { | |
1534 | rdata = rport->dd_data; | |
1535 | if (rdata->pnode == ndlp) { | |
1536 | lpfc_nlp_put(ndlp); | |
1537 | ndlp->rport = NULL; | |
1538 | rdata->pnode = lpfc_nlp_get(new_ndlp); | |
1539 | new_ndlp->rport = rport; | |
1540 | } | |
1541 | new_ndlp->nlp_type = ndlp->nlp_type; | |
1542 | } | |
58da1ffb JS |
1543 | /* We shall actually free the ndlp with both nlp_DID and |
1544 | * nlp_portname fields equals 0 to avoid any ndlp on the | |
1545 | * nodelist never to be used. | |
1546 | */ | |
1547 | if (ndlp->nlp_DID == 0) { | |
1548 | spin_lock_irq(&phba->ndlp_lock); | |
1549 | NLP_SET_FREE_REQ(ndlp); | |
1550 | spin_unlock_irq(&phba->ndlp_lock); | |
1551 | } | |
0ff10d46 | 1552 | |
58da1ffb JS |
1553 | /* Two ndlps cannot have the same did on the nodelist */ |
1554 | ndlp->nlp_DID = keepDID; | |
19ca7609 JS |
1555 | if (phba->sli_rev == LPFC_SLI_REV4) |
1556 | memcpy(&ndlp->active_rrqs.xri_bitmap, | |
1557 | &rrq.xri_bitmap, | |
1558 | sizeof(ndlp->active_rrqs.xri_bitmap)); | |
2e0fef85 | 1559 | lpfc_drop_node(vport, ndlp); |
87af33fe | 1560 | } |
92795650 | 1561 | else { |
2e0fef85 | 1562 | lpfc_unreg_rpi(vport, ndlp); |
58da1ffb JS |
1563 | /* Two ndlps cannot have the same did */ |
1564 | ndlp->nlp_DID = keepDID; | |
19ca7609 JS |
1565 | if (phba->sli_rev == LPFC_SLI_REV4) |
1566 | memcpy(&ndlp->active_rrqs.xri_bitmap, | |
1567 | &rrq.xri_bitmap, | |
1568 | sizeof(ndlp->active_rrqs.xri_bitmap)); | |
38b92ef8 JS |
1569 | /* Since we are swapping the ndlp passed in with the new one |
1570 | * and the did has already been swapped, copy over the | |
1571 | * state and names. | |
1572 | */ | |
1573 | memcpy(&new_ndlp->nlp_portname, &ndlp->nlp_portname, | |
1574 | sizeof(struct lpfc_name)); | |
1575 | memcpy(&new_ndlp->nlp_nodename, &ndlp->nlp_nodename, | |
1576 | sizeof(struct lpfc_name)); | |
1577 | new_ndlp->nlp_state = ndlp->nlp_state; | |
eff4a01b | 1578 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
38b92ef8 JS |
1579 | /* Fix up the rport accordingly */ |
1580 | rport = ndlp->rport; | |
1581 | if (rport) { | |
1582 | rdata = rport->dd_data; | |
1583 | put_node = rdata->pnode != NULL; | |
1584 | put_rport = ndlp->rport != NULL; | |
1585 | rdata->pnode = NULL; | |
1586 | ndlp->rport = NULL; | |
1587 | if (put_node) | |
1588 | lpfc_nlp_put(ndlp); | |
1589 | if (put_rport) | |
1590 | put_device(&rport->dev); | |
1591 | } | |
92795650 | 1592 | } |
488d1469 JS |
1593 | return new_ndlp; |
1594 | } | |
1595 | ||
e59058c4 | 1596 | /** |
3621a710 | 1597 | * lpfc_end_rscn - Check and handle more rscn for a vport |
e59058c4 JS |
1598 | * @vport: pointer to a host virtual N_Port data structure. |
1599 | * | |
1600 | * This routine checks whether more Registration State Change | |
1601 | * Notifications (RSCNs) came in while the discovery state machine was in | |
1602 | * the FC_RSCN_MODE. If so, the lpfc_els_handle_rscn() routine will be | |
1603 | * invoked to handle the additional RSCNs for the @vport. Otherwise, the | |
1604 | * FC_RSCN_MODE bit will be cleared with the @vport to mark as the end of | |
1605 | * handling the RSCNs. | |
1606 | **/ | |
87af33fe JS |
1607 | void |
1608 | lpfc_end_rscn(struct lpfc_vport *vport) | |
1609 | { | |
1610 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
1611 | ||
1612 | if (vport->fc_flag & FC_RSCN_MODE) { | |
1613 | /* | |
1614 | * Check to see if more RSCNs came in while we were | |
1615 | * processing this one. | |
1616 | */ | |
1617 | if (vport->fc_rscn_id_cnt || | |
1618 | (vport->fc_flag & FC_RSCN_DISCOVERY) != 0) | |
1619 | lpfc_els_handle_rscn(vport); | |
1620 | else { | |
1621 | spin_lock_irq(shost->host_lock); | |
1622 | vport->fc_flag &= ~FC_RSCN_MODE; | |
1623 | spin_unlock_irq(shost->host_lock); | |
1624 | } | |
1625 | } | |
1626 | } | |
1627 | ||
19ca7609 JS |
1628 | /** |
1629 | * lpfc_cmpl_els_rrq - Completion handled for els RRQs. | |
1630 | * @phba: pointer to lpfc hba data structure. | |
1631 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
1632 | * @rspiocb: pointer to lpfc response iocb data structure. | |
1633 | * | |
1634 | * This routine will call the clear rrq function to free the rrq and | |
1635 | * clear the xri's bit in the ndlp's xri_bitmap. If the ndlp does not | |
1636 | * exist then the clear_rrq is still called because the rrq needs to | |
1637 | * be freed. | |
1638 | **/ | |
1639 | ||
1640 | static void | |
1641 | lpfc_cmpl_els_rrq(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
1642 | struct lpfc_iocbq *rspiocb) | |
1643 | { | |
1644 | struct lpfc_vport *vport = cmdiocb->vport; | |
1645 | IOCB_t *irsp; | |
1646 | struct lpfc_nodelist *ndlp; | |
1647 | struct lpfc_node_rrq *rrq; | |
1648 | ||
1649 | /* we pass cmdiocb to state machine which needs rspiocb as well */ | |
1650 | rrq = cmdiocb->context_un.rrq; | |
1651 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
1652 | ||
1653 | irsp = &rspiocb->iocb; | |
1654 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, | |
1655 | "RRQ cmpl: status:x%x/x%x did:x%x", | |
1656 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1657 | irsp->un.elsreq64.remoteID); | |
1658 | ||
1659 | ndlp = lpfc_findnode_did(vport, irsp->un.elsreq64.remoteID); | |
1660 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || ndlp != rrq->ndlp) { | |
1661 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
1662 | "2882 RRQ completes to NPort x%x " | |
1663 | "with no ndlp. Data: x%x x%x x%x\n", | |
1664 | irsp->un.elsreq64.remoteID, | |
1665 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1666 | irsp->ulpIoTag); | |
1667 | goto out; | |
1668 | } | |
1669 | ||
1670 | /* rrq completes to NPort <nlp_DID> */ | |
1671 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
1672 | "2880 RRQ completes to NPort x%x " | |
1673 | "Data: x%x x%x x%x x%x x%x\n", | |
1674 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
1675 | irsp->ulpTimeout, rrq->xritag, rrq->rxid); | |
1676 | ||
1677 | if (irsp->ulpStatus) { | |
1678 | /* Check for retry */ | |
1679 | /* RRQ failed Don't print the vport to vport rjts */ | |
1680 | if (irsp->ulpStatus != IOSTAT_LS_RJT || | |
1681 | (((irsp->un.ulpWord[4]) >> 16 != LSRJT_INVALID_CMD) && | |
1682 | ((irsp->un.ulpWord[4]) >> 16 != LSRJT_UNABLE_TPC)) || | |
1683 | (phba)->pport->cfg_log_verbose & LOG_ELS) | |
1684 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
1685 | "2881 RRQ failure DID:%06X Status:x%x/x%x\n", | |
1686 | ndlp->nlp_DID, irsp->ulpStatus, | |
1687 | irsp->un.ulpWord[4]); | |
1688 | } | |
1689 | out: | |
1690 | if (rrq) | |
1691 | lpfc_clr_rrq_active(phba, rrq->xritag, rrq); | |
1692 | lpfc_els_free_iocb(phba, cmdiocb); | |
1693 | return; | |
1694 | } | |
e59058c4 | 1695 | /** |
3621a710 | 1696 | * lpfc_cmpl_els_plogi - Completion callback function for plogi |
e59058c4 JS |
1697 | * @phba: pointer to lpfc hba data structure. |
1698 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
1699 | * @rspiocb: pointer to lpfc response iocb data structure. | |
1700 | * | |
1701 | * This routine is the completion callback function for issuing the Port | |
1702 | * Login (PLOGI) command. For PLOGI completion, there must be an active | |
1703 | * ndlp on the vport node list that matches the remote node ID from the | |
25985edc | 1704 | * PLOGI response IOCB. If such ndlp does not exist, the PLOGI is simply |
e59058c4 JS |
1705 | * ignored and command IOCB released. The PLOGI response IOCB status is |
1706 | * checked for error conditons. If there is error status reported, PLOGI | |
1707 | * retry shall be attempted by invoking the lpfc_els_retry() routine. | |
1708 | * Otherwise, the lpfc_plogi_confirm_nport() routine shall be invoked on | |
1709 | * the ndlp and the NLP_EVT_CMPL_PLOGI state to the Discover State Machine | |
1710 | * (DSM) is set for this PLOGI completion. Finally, it checks whether | |
1711 | * there are additional N_Port nodes with the vport that need to perform | |
1712 | * PLOGI. If so, the lpfc_more_plogi() routine is invoked to issue addition | |
1713 | * PLOGIs. | |
1714 | **/ | |
dea3101e | 1715 | static void |
2e0fef85 JS |
1716 | lpfc_cmpl_els_plogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
1717 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 1718 | { |
2e0fef85 JS |
1719 | struct lpfc_vport *vport = cmdiocb->vport; |
1720 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e | 1721 | IOCB_t *irsp; |
dea3101e | 1722 | struct lpfc_nodelist *ndlp; |
92795650 | 1723 | struct lpfc_dmabuf *prsp; |
dea3101e JB |
1724 | int disc, rc, did, type; |
1725 | ||
dea3101e JB |
1726 | /* we pass cmdiocb to state machine which needs rspiocb as well */ |
1727 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
1728 | ||
1729 | irsp = &rspiocb->iocb; | |
858c9f6c JS |
1730 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1731 | "PLOGI cmpl: status:x%x/x%x did:x%x", | |
1732 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1733 | irsp->un.elsreq64.remoteID); | |
1734 | ||
2e0fef85 | 1735 | ndlp = lpfc_findnode_did(vport, irsp->un.elsreq64.remoteID); |
e47c9093 | 1736 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { |
e8b62011 JS |
1737 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
1738 | "0136 PLOGI completes to NPort x%x " | |
1739 | "with no ndlp. Data: x%x x%x x%x\n", | |
1740 | irsp->un.elsreq64.remoteID, | |
1741 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1742 | irsp->ulpIoTag); | |
488d1469 | 1743 | goto out; |
ed957684 | 1744 | } |
dea3101e JB |
1745 | |
1746 | /* Since ndlp can be freed in the disc state machine, note if this node | |
1747 | * is being used during discovery. | |
1748 | */ | |
2e0fef85 | 1749 | spin_lock_irq(shost->host_lock); |
dea3101e | 1750 | disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC); |
488d1469 | 1751 | ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; |
2e0fef85 | 1752 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
1753 | rc = 0; |
1754 | ||
1755 | /* PLOGI completes to NPort <nlp_DID> */ | |
e8b62011 JS |
1756 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
1757 | "0102 PLOGI completes to NPort x%x " | |
1758 | "Data: x%x x%x x%x x%x x%x\n", | |
1759 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
1760 | irsp->ulpTimeout, disc, vport->num_disc_nodes); | |
dea3101e | 1761 | /* Check to see if link went down during discovery */ |
2e0fef85 JS |
1762 | if (lpfc_els_chk_latt(vport)) { |
1763 | spin_lock_irq(shost->host_lock); | |
dea3101e | 1764 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 | 1765 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
1766 | goto out; |
1767 | } | |
1768 | ||
1769 | /* ndlp could be freed in DSM, save these values now */ | |
1770 | type = ndlp->nlp_type; | |
1771 | did = ndlp->nlp_DID; | |
1772 | ||
1773 | if (irsp->ulpStatus) { | |
1774 | /* Check for retry */ | |
1775 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { | |
1776 | /* ELS command is being retried */ | |
1777 | if (disc) { | |
2e0fef85 | 1778 | spin_lock_irq(shost->host_lock); |
dea3101e | 1779 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 | 1780 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
1781 | } |
1782 | goto out; | |
1783 | } | |
2a9bf3d0 JS |
1784 | /* PLOGI failed Don't print the vport to vport rjts */ |
1785 | if (irsp->ulpStatus != IOSTAT_LS_RJT || | |
1786 | (((irsp->un.ulpWord[4]) >> 16 != LSRJT_INVALID_CMD) && | |
1787 | ((irsp->un.ulpWord[4]) >> 16 != LSRJT_UNABLE_TPC)) || | |
1788 | (phba)->pport->cfg_log_verbose & LOG_ELS) | |
1789 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
e40a02c1 JS |
1790 | "2753 PLOGI failure DID:%06X Status:x%x/x%x\n", |
1791 | ndlp->nlp_DID, irsp->ulpStatus, | |
1792 | irsp->un.ulpWord[4]); | |
dea3101e | 1793 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ |
e47c9093 | 1794 | if (lpfc_error_lost_link(irsp)) |
c9f8735b | 1795 | rc = NLP_STE_FREED_NODE; |
e47c9093 | 1796 | else |
2e0fef85 | 1797 | rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 1798 | NLP_EVT_CMPL_PLOGI); |
dea3101e JB |
1799 | } else { |
1800 | /* Good status, call state machine */ | |
92795650 | 1801 | prsp = list_entry(((struct lpfc_dmabuf *) |
92d7f7b0 JS |
1802 | cmdiocb->context2)->list.next, |
1803 | struct lpfc_dmabuf, list); | |
1804 | ndlp = lpfc_plogi_confirm_nport(phba, prsp->virt, ndlp); | |
2e0fef85 | 1805 | rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 1806 | NLP_EVT_CMPL_PLOGI); |
dea3101e JB |
1807 | } |
1808 | ||
2e0fef85 | 1809 | if (disc && vport->num_disc_nodes) { |
dea3101e | 1810 | /* Check to see if there are more PLOGIs to be sent */ |
2e0fef85 | 1811 | lpfc_more_plogi(vport); |
dea3101e | 1812 | |
2e0fef85 JS |
1813 | if (vport->num_disc_nodes == 0) { |
1814 | spin_lock_irq(shost->host_lock); | |
1815 | vport->fc_flag &= ~FC_NDISC_ACTIVE; | |
1816 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 1817 | |
2e0fef85 | 1818 | lpfc_can_disctmo(vport); |
87af33fe | 1819 | lpfc_end_rscn(vport); |
dea3101e JB |
1820 | } |
1821 | } | |
1822 | ||
1823 | out: | |
1824 | lpfc_els_free_iocb(phba, cmdiocb); | |
1825 | return; | |
1826 | } | |
1827 | ||
e59058c4 | 1828 | /** |
3621a710 | 1829 | * lpfc_issue_els_plogi - Issue an plogi iocb command for a vport |
e59058c4 JS |
1830 | * @vport: pointer to a host virtual N_Port data structure. |
1831 | * @did: destination port identifier. | |
1832 | * @retry: number of retries to the command IOCB. | |
1833 | * | |
1834 | * This routine issues a Port Login (PLOGI) command to a remote N_Port | |
1835 | * (with the @did) for a @vport. Before issuing a PLOGI to a remote N_Port, | |
1836 | * the ndlp with the remote N_Port DID must exist on the @vport's ndlp list. | |
1837 | * This routine constructs the proper feilds of the PLOGI IOCB and invokes | |
1838 | * the lpfc_sli_issue_iocb() routine to send out PLOGI ELS command. | |
1839 | * | |
1840 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
1841 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
1842 | * will be stored into the context1 field of the IOCB for the completion | |
1843 | * callback function to the PLOGI ELS command. | |
1844 | * | |
1845 | * Return code | |
1846 | * 0 - Successfully issued a plogi for @vport | |
1847 | * 1 - failed to issue a plogi for @vport | |
1848 | **/ | |
dea3101e | 1849 | int |
2e0fef85 | 1850 | lpfc_issue_els_plogi(struct lpfc_vport *vport, uint32_t did, uint8_t retry) |
dea3101e | 1851 | { |
2e0fef85 | 1852 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
1853 | struct serv_parm *sp; |
1854 | IOCB_t *icmd; | |
98c9ea5c | 1855 | struct lpfc_nodelist *ndlp; |
dea3101e | 1856 | struct lpfc_iocbq *elsiocb; |
dea3101e JB |
1857 | struct lpfc_sli *psli; |
1858 | uint8_t *pcmd; | |
1859 | uint16_t cmdsize; | |
92d7f7b0 | 1860 | int ret; |
dea3101e JB |
1861 | |
1862 | psli = &phba->sli; | |
dea3101e | 1863 | |
98c9ea5c | 1864 | ndlp = lpfc_findnode_did(vport, did); |
e47c9093 JS |
1865 | if (ndlp && !NLP_CHK_NODE_ACT(ndlp)) |
1866 | ndlp = NULL; | |
98c9ea5c | 1867 | |
e47c9093 | 1868 | /* If ndlp is not NULL, we will bump the reference count on it */ |
92d7f7b0 | 1869 | cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); |
98c9ea5c | 1870 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did, |
2e0fef85 | 1871 | ELS_CMD_PLOGI); |
c9f8735b JW |
1872 | if (!elsiocb) |
1873 | return 1; | |
dea3101e JB |
1874 | |
1875 | icmd = &elsiocb->iocb; | |
1876 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
1877 | ||
1878 | /* For PLOGI request, remainder of payload is service parameters */ | |
1879 | *((uint32_t *) (pcmd)) = ELS_CMD_PLOGI; | |
92d7f7b0 JS |
1880 | pcmd += sizeof(uint32_t); |
1881 | memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); | |
dea3101e JB |
1882 | sp = (struct serv_parm *) pcmd; |
1883 | ||
5ac6b303 JS |
1884 | /* |
1885 | * If we are a N-port connected to a Fabric, fix-up paramm's so logins | |
1886 | * to device on remote loops work. | |
1887 | */ | |
1888 | if ((vport->fc_flag & FC_FABRIC) && !(vport->fc_flag & FC_PUBLIC_LOOP)) | |
1889 | sp->cmn.altBbCredit = 1; | |
1890 | ||
dea3101e JB |
1891 | if (sp->cmn.fcphLow < FC_PH_4_3) |
1892 | sp->cmn.fcphLow = FC_PH_4_3; | |
1893 | ||
1894 | if (sp->cmn.fcphHigh < FC_PH3) | |
1895 | sp->cmn.fcphHigh = FC_PH3; | |
1896 | ||
858c9f6c JS |
1897 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1898 | "Issue PLOGI: did:x%x", | |
1899 | did, 0, 0); | |
1900 | ||
dea3101e JB |
1901 | phba->fc_stat.elsXmitPLOGI++; |
1902 | elsiocb->iocb_cmpl = lpfc_cmpl_els_plogi; | |
3772a991 | 1903 | ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
92d7f7b0 JS |
1904 | |
1905 | if (ret == IOCB_ERROR) { | |
dea3101e | 1906 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 1907 | return 1; |
dea3101e | 1908 | } |
c9f8735b | 1909 | return 0; |
dea3101e JB |
1910 | } |
1911 | ||
e59058c4 | 1912 | /** |
3621a710 | 1913 | * lpfc_cmpl_els_prli - Completion callback function for prli |
e59058c4 JS |
1914 | * @phba: pointer to lpfc hba data structure. |
1915 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
1916 | * @rspiocb: pointer to lpfc response iocb data structure. | |
1917 | * | |
1918 | * This routine is the completion callback function for a Process Login | |
1919 | * (PRLI) ELS command. The PRLI response IOCB status is checked for error | |
1920 | * status. If there is error status reported, PRLI retry shall be attempted | |
1921 | * by invoking the lpfc_els_retry() routine. Otherwise, the state | |
1922 | * NLP_EVT_CMPL_PRLI is sent to the Discover State Machine (DSM) for this | |
1923 | * ndlp to mark the PRLI completion. | |
1924 | **/ | |
dea3101e | 1925 | static void |
2e0fef85 JS |
1926 | lpfc_cmpl_els_prli(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
1927 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 1928 | { |
2e0fef85 JS |
1929 | struct lpfc_vport *vport = cmdiocb->vport; |
1930 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e JB |
1931 | IOCB_t *irsp; |
1932 | struct lpfc_sli *psli; | |
1933 | struct lpfc_nodelist *ndlp; | |
1934 | ||
1935 | psli = &phba->sli; | |
1936 | /* we pass cmdiocb to state machine which needs rspiocb as well */ | |
1937 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
1938 | ||
1939 | irsp = &(rspiocb->iocb); | |
1940 | ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
2e0fef85 | 1941 | spin_lock_irq(shost->host_lock); |
dea3101e | 1942 | ndlp->nlp_flag &= ~NLP_PRLI_SND; |
2e0fef85 | 1943 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1944 | |
858c9f6c JS |
1945 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1946 | "PRLI cmpl: status:x%x/x%x did:x%x", | |
1947 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1948 | ndlp->nlp_DID); | |
dea3101e | 1949 | /* PRLI completes to NPort <nlp_DID> */ |
e8b62011 JS |
1950 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
1951 | "0103 PRLI completes to NPort x%x " | |
1952 | "Data: x%x x%x x%x x%x\n", | |
1953 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
1954 | irsp->ulpTimeout, vport->num_disc_nodes); | |
dea3101e | 1955 | |
2e0fef85 | 1956 | vport->fc_prli_sent--; |
dea3101e | 1957 | /* Check to see if link went down during discovery */ |
2e0fef85 | 1958 | if (lpfc_els_chk_latt(vport)) |
dea3101e JB |
1959 | goto out; |
1960 | ||
1961 | if (irsp->ulpStatus) { | |
1962 | /* Check for retry */ | |
1963 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { | |
1964 | /* ELS command is being retried */ | |
1965 | goto out; | |
1966 | } | |
1967 | /* PRLI failed */ | |
e40a02c1 JS |
1968 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
1969 | "2754 PRLI failure DID:%06X Status:x%x/x%x\n", | |
1970 | ndlp->nlp_DID, irsp->ulpStatus, | |
1971 | irsp->un.ulpWord[4]); | |
dea3101e | 1972 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ |
e47c9093 | 1973 | if (lpfc_error_lost_link(irsp)) |
dea3101e | 1974 | goto out; |
e47c9093 | 1975 | else |
2e0fef85 | 1976 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 1977 | NLP_EVT_CMPL_PRLI); |
e47c9093 | 1978 | } else |
dea3101e | 1979 | /* Good status, call state machine */ |
2e0fef85 | 1980 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 1981 | NLP_EVT_CMPL_PRLI); |
dea3101e JB |
1982 | out: |
1983 | lpfc_els_free_iocb(phba, cmdiocb); | |
1984 | return; | |
1985 | } | |
1986 | ||
e59058c4 | 1987 | /** |
3621a710 | 1988 | * lpfc_issue_els_prli - Issue a prli iocb command for a vport |
e59058c4 JS |
1989 | * @vport: pointer to a host virtual N_Port data structure. |
1990 | * @ndlp: pointer to a node-list data structure. | |
1991 | * @retry: number of retries to the command IOCB. | |
1992 | * | |
1993 | * This routine issues a Process Login (PRLI) ELS command for the | |
1994 | * @vport. The PRLI service parameters are set up in the payload of the | |
1995 | * PRLI Request command and the pointer to lpfc_cmpl_els_prli() routine | |
1996 | * is put to the IOCB completion callback func field before invoking the | |
1997 | * routine lpfc_sli_issue_iocb() to send out PRLI command. | |
1998 | * | |
1999 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
2000 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
2001 | * will be stored into the context1 field of the IOCB for the completion | |
2002 | * callback function to the PRLI ELS command. | |
2003 | * | |
2004 | * Return code | |
2005 | * 0 - successfully issued prli iocb command for @vport | |
2006 | * 1 - failed to issue prli iocb command for @vport | |
2007 | **/ | |
dea3101e | 2008 | int |
2e0fef85 | 2009 | lpfc_issue_els_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
dea3101e JB |
2010 | uint8_t retry) |
2011 | { | |
2e0fef85 JS |
2012 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
2013 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
2014 | PRLI *npr; |
2015 | IOCB_t *icmd; | |
2016 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
2017 | uint8_t *pcmd; |
2018 | uint16_t cmdsize; | |
2019 | ||
92d7f7b0 | 2020 | cmdsize = (sizeof(uint32_t) + sizeof(PRLI)); |
2e0fef85 JS |
2021 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
2022 | ndlp->nlp_DID, ELS_CMD_PRLI); | |
488d1469 | 2023 | if (!elsiocb) |
c9f8735b | 2024 | return 1; |
dea3101e JB |
2025 | |
2026 | icmd = &elsiocb->iocb; | |
2027 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
2028 | ||
2029 | /* For PRLI request, remainder of payload is service parameters */ | |
92d7f7b0 | 2030 | memset(pcmd, 0, (sizeof(PRLI) + sizeof(uint32_t))); |
dea3101e | 2031 | *((uint32_t *) (pcmd)) = ELS_CMD_PRLI; |
92d7f7b0 | 2032 | pcmd += sizeof(uint32_t); |
dea3101e JB |
2033 | |
2034 | /* For PRLI, remainder of payload is PRLI parameter page */ | |
2035 | npr = (PRLI *) pcmd; | |
2036 | /* | |
2037 | * If our firmware version is 3.20 or later, | |
2038 | * set the following bits for FC-TAPE support. | |
2039 | */ | |
2040 | if (phba->vpd.rev.feaLevelHigh >= 0x02) { | |
2041 | npr->ConfmComplAllowed = 1; | |
2042 | npr->Retry = 1; | |
2043 | npr->TaskRetryIdReq = 1; | |
2044 | } | |
2045 | npr->estabImagePair = 1; | |
2046 | npr->readXferRdyDis = 1; | |
2047 | ||
2048 | /* For FCP support */ | |
2049 | npr->prliType = PRLI_FCP_TYPE; | |
2050 | npr->initiatorFunc = 1; | |
2051 | ||
858c9f6c JS |
2052 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2053 | "Issue PRLI: did:x%x", | |
2054 | ndlp->nlp_DID, 0, 0); | |
2055 | ||
dea3101e JB |
2056 | phba->fc_stat.elsXmitPRLI++; |
2057 | elsiocb->iocb_cmpl = lpfc_cmpl_els_prli; | |
2e0fef85 | 2058 | spin_lock_irq(shost->host_lock); |
dea3101e | 2059 | ndlp->nlp_flag |= NLP_PRLI_SND; |
2e0fef85 | 2060 | spin_unlock_irq(shost->host_lock); |
3772a991 JS |
2061 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
2062 | IOCB_ERROR) { | |
2e0fef85 | 2063 | spin_lock_irq(shost->host_lock); |
dea3101e | 2064 | ndlp->nlp_flag &= ~NLP_PRLI_SND; |
2e0fef85 | 2065 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2066 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 2067 | return 1; |
dea3101e | 2068 | } |
2e0fef85 | 2069 | vport->fc_prli_sent++; |
c9f8735b | 2070 | return 0; |
dea3101e JB |
2071 | } |
2072 | ||
90160e01 | 2073 | /** |
3621a710 | 2074 | * lpfc_rscn_disc - Perform rscn discovery for a vport |
90160e01 JS |
2075 | * @vport: pointer to a host virtual N_Port data structure. |
2076 | * | |
2077 | * This routine performs Registration State Change Notification (RSCN) | |
2078 | * discovery for a @vport. If the @vport's node port recovery count is not | |
2079 | * zero, it will invoke the lpfc_els_disc_plogi() to perform PLOGI for all | |
2080 | * the nodes that need recovery. If none of the PLOGI were needed through | |
2081 | * the lpfc_els_disc_plogi() routine, the lpfc_end_rscn() routine shall be | |
2082 | * invoked to check and handle possible more RSCN came in during the period | |
2083 | * of processing the current ones. | |
2084 | **/ | |
2085 | static void | |
2086 | lpfc_rscn_disc(struct lpfc_vport *vport) | |
2087 | { | |
2088 | lpfc_can_disctmo(vport); | |
2089 | ||
2090 | /* RSCN discovery */ | |
2091 | /* go thru NPR nodes and issue ELS PLOGIs */ | |
2092 | if (vport->fc_npr_cnt) | |
2093 | if (lpfc_els_disc_plogi(vport)) | |
2094 | return; | |
2095 | ||
2096 | lpfc_end_rscn(vport); | |
2097 | } | |
2098 | ||
2099 | /** | |
3621a710 | 2100 | * lpfc_adisc_done - Complete the adisc phase of discovery |
90160e01 JS |
2101 | * @vport: pointer to lpfc_vport hba data structure that finished all ADISCs. |
2102 | * | |
2103 | * This function is called when the final ADISC is completed during discovery. | |
2104 | * This function handles clearing link attention or issuing reg_vpi depending | |
2105 | * on whether npiv is enabled. This function also kicks off the PLOGI phase of | |
2106 | * discovery. | |
2107 | * This function is called with no locks held. | |
2108 | **/ | |
2109 | static void | |
2110 | lpfc_adisc_done(struct lpfc_vport *vport) | |
2111 | { | |
2112 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
2113 | struct lpfc_hba *phba = vport->phba; | |
2114 | ||
2115 | /* | |
2116 | * For NPIV, cmpl_reg_vpi will set port_state to READY, | |
2117 | * and continue discovery. | |
2118 | */ | |
2119 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && | |
6fb120a7 JS |
2120 | !(vport->fc_flag & FC_RSCN_MODE) && |
2121 | (phba->sli_rev < LPFC_SLI_REV4)) { | |
90160e01 JS |
2122 | lpfc_issue_reg_vpi(phba, vport); |
2123 | return; | |
2124 | } | |
2125 | /* | |
2126 | * For SLI2, we need to set port_state to READY | |
2127 | * and continue discovery. | |
2128 | */ | |
2129 | if (vport->port_state < LPFC_VPORT_READY) { | |
2130 | /* If we get here, there is nothing to ADISC */ | |
2131 | if (vport->port_type == LPFC_PHYSICAL_PORT) | |
2132 | lpfc_issue_clear_la(phba, vport); | |
2133 | if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) { | |
2134 | vport->num_disc_nodes = 0; | |
2135 | /* go thru NPR list, issue ELS PLOGIs */ | |
2136 | if (vport->fc_npr_cnt) | |
2137 | lpfc_els_disc_plogi(vport); | |
2138 | if (!vport->num_disc_nodes) { | |
2139 | spin_lock_irq(shost->host_lock); | |
2140 | vport->fc_flag &= ~FC_NDISC_ACTIVE; | |
2141 | spin_unlock_irq(shost->host_lock); | |
2142 | lpfc_can_disctmo(vport); | |
2143 | lpfc_end_rscn(vport); | |
2144 | } | |
2145 | } | |
2146 | vport->port_state = LPFC_VPORT_READY; | |
2147 | } else | |
2148 | lpfc_rscn_disc(vport); | |
2149 | } | |
2150 | ||
e59058c4 | 2151 | /** |
3621a710 | 2152 | * lpfc_more_adisc - Issue more adisc as needed |
e59058c4 JS |
2153 | * @vport: pointer to a host virtual N_Port data structure. |
2154 | * | |
2155 | * This routine determines whether there are more ndlps on a @vport | |
2156 | * node list need to have Address Discover (ADISC) issued. If so, it will | |
2157 | * invoke the lpfc_els_disc_adisc() routine to issue ADISC on the @vport's | |
2158 | * remaining nodes which need to have ADISC sent. | |
2159 | **/ | |
0ff10d46 | 2160 | void |
2e0fef85 | 2161 | lpfc_more_adisc(struct lpfc_vport *vport) |
dea3101e JB |
2162 | { |
2163 | int sentadisc; | |
2164 | ||
2e0fef85 JS |
2165 | if (vport->num_disc_nodes) |
2166 | vport->num_disc_nodes--; | |
dea3101e | 2167 | /* Continue discovery with <num_disc_nodes> ADISCs to go */ |
e8b62011 JS |
2168 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
2169 | "0210 Continue discovery with %d ADISCs to go " | |
2170 | "Data: x%x x%x x%x\n", | |
2171 | vport->num_disc_nodes, vport->fc_adisc_cnt, | |
2172 | vport->fc_flag, vport->port_state); | |
dea3101e | 2173 | /* Check to see if there are more ADISCs to be sent */ |
2e0fef85 JS |
2174 | if (vport->fc_flag & FC_NLP_MORE) { |
2175 | lpfc_set_disctmo(vport); | |
2176 | /* go thru NPR nodes and issue any remaining ELS ADISCs */ | |
2177 | sentadisc = lpfc_els_disc_adisc(vport); | |
dea3101e | 2178 | } |
90160e01 JS |
2179 | if (!vport->num_disc_nodes) |
2180 | lpfc_adisc_done(vport); | |
dea3101e JB |
2181 | return; |
2182 | } | |
2183 | ||
e59058c4 | 2184 | /** |
3621a710 | 2185 | * lpfc_cmpl_els_adisc - Completion callback function for adisc |
e59058c4 JS |
2186 | * @phba: pointer to lpfc hba data structure. |
2187 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
2188 | * @rspiocb: pointer to lpfc response iocb data structure. | |
2189 | * | |
2190 | * This routine is the completion function for issuing the Address Discover | |
2191 | * (ADISC) command. It first checks to see whether link went down during | |
2192 | * the discovery process. If so, the node will be marked as node port | |
2193 | * recovery for issuing discover IOCB by the link attention handler and | |
2194 | * exit. Otherwise, the response status is checked. If error was reported | |
2195 | * in the response status, the ADISC command shall be retried by invoking | |
2196 | * the lpfc_els_retry() routine. Otherwise, if no error was reported in | |
2197 | * the response status, the state machine is invoked to set transition | |
2198 | * with respect to NLP_EVT_CMPL_ADISC event. | |
2199 | **/ | |
dea3101e | 2200 | static void |
2e0fef85 JS |
2201 | lpfc_cmpl_els_adisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
2202 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 2203 | { |
2e0fef85 JS |
2204 | struct lpfc_vport *vport = cmdiocb->vport; |
2205 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e | 2206 | IOCB_t *irsp; |
dea3101e | 2207 | struct lpfc_nodelist *ndlp; |
2e0fef85 | 2208 | int disc; |
dea3101e JB |
2209 | |
2210 | /* we pass cmdiocb to state machine which needs rspiocb as well */ | |
2211 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
2212 | ||
2213 | irsp = &(rspiocb->iocb); | |
2214 | ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
dea3101e | 2215 | |
858c9f6c JS |
2216 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2217 | "ADISC cmpl: status:x%x/x%x did:x%x", | |
2218 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
2219 | ndlp->nlp_DID); | |
2220 | ||
dea3101e JB |
2221 | /* Since ndlp can be freed in the disc state machine, note if this node |
2222 | * is being used during discovery. | |
2223 | */ | |
2e0fef85 | 2224 | spin_lock_irq(shost->host_lock); |
dea3101e | 2225 | disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC); |
c9f8735b | 2226 | ndlp->nlp_flag &= ~(NLP_ADISC_SND | NLP_NPR_2B_DISC); |
2e0fef85 | 2227 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2228 | /* ADISC completes to NPort <nlp_DID> */ |
e8b62011 JS |
2229 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
2230 | "0104 ADISC completes to NPort x%x " | |
2231 | "Data: x%x x%x x%x x%x x%x\n", | |
2232 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
2233 | irsp->ulpTimeout, disc, vport->num_disc_nodes); | |
dea3101e | 2234 | /* Check to see if link went down during discovery */ |
2e0fef85 JS |
2235 | if (lpfc_els_chk_latt(vport)) { |
2236 | spin_lock_irq(shost->host_lock); | |
dea3101e | 2237 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 | 2238 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
2239 | goto out; |
2240 | } | |
2241 | ||
2242 | if (irsp->ulpStatus) { | |
2243 | /* Check for retry */ | |
2244 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { | |
2245 | /* ELS command is being retried */ | |
2246 | if (disc) { | |
2e0fef85 | 2247 | spin_lock_irq(shost->host_lock); |
dea3101e | 2248 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 JS |
2249 | spin_unlock_irq(shost->host_lock); |
2250 | lpfc_set_disctmo(vport); | |
dea3101e JB |
2251 | } |
2252 | goto out; | |
2253 | } | |
2254 | /* ADISC failed */ | |
e40a02c1 JS |
2255 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
2256 | "2755 ADISC failure DID:%06X Status:x%x/x%x\n", | |
2257 | ndlp->nlp_DID, irsp->ulpStatus, | |
2258 | irsp->un.ulpWord[4]); | |
dea3101e | 2259 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ |
e47c9093 | 2260 | if (!lpfc_error_lost_link(irsp)) |
2e0fef85 | 2261 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
858c9f6c | 2262 | NLP_EVT_CMPL_ADISC); |
e47c9093 | 2263 | } else |
dea3101e | 2264 | /* Good status, call state machine */ |
2e0fef85 | 2265 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
dea3101e | 2266 | NLP_EVT_CMPL_ADISC); |
dea3101e | 2267 | |
90160e01 JS |
2268 | /* Check to see if there are more ADISCs to be sent */ |
2269 | if (disc && vport->num_disc_nodes) | |
2e0fef85 | 2270 | lpfc_more_adisc(vport); |
dea3101e JB |
2271 | out: |
2272 | lpfc_els_free_iocb(phba, cmdiocb); | |
2273 | return; | |
2274 | } | |
2275 | ||
e59058c4 | 2276 | /** |
3621a710 | 2277 | * lpfc_issue_els_adisc - Issue an address discover iocb to an node on a vport |
e59058c4 JS |
2278 | * @vport: pointer to a virtual N_Port data structure. |
2279 | * @ndlp: pointer to a node-list data structure. | |
2280 | * @retry: number of retries to the command IOCB. | |
2281 | * | |
2282 | * This routine issues an Address Discover (ADISC) for an @ndlp on a | |
2283 | * @vport. It prepares the payload of the ADISC ELS command, updates the | |
2284 | * and states of the ndlp, and invokes the lpfc_sli_issue_iocb() routine | |
2285 | * to issue the ADISC ELS command. | |
2286 | * | |
2287 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
2288 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
2289 | * will be stored into the context1 field of the IOCB for the completion | |
2290 | * callback function to the ADISC ELS command. | |
2291 | * | |
2292 | * Return code | |
2293 | * 0 - successfully issued adisc | |
2294 | * 1 - failed to issue adisc | |
2295 | **/ | |
dea3101e | 2296 | int |
2e0fef85 | 2297 | lpfc_issue_els_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
dea3101e JB |
2298 | uint8_t retry) |
2299 | { | |
2e0fef85 JS |
2300 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
2301 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
2302 | ADISC *ap; |
2303 | IOCB_t *icmd; | |
2304 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
2305 | uint8_t *pcmd; |
2306 | uint16_t cmdsize; | |
2307 | ||
92d7f7b0 | 2308 | cmdsize = (sizeof(uint32_t) + sizeof(ADISC)); |
2e0fef85 JS |
2309 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
2310 | ndlp->nlp_DID, ELS_CMD_ADISC); | |
488d1469 | 2311 | if (!elsiocb) |
c9f8735b | 2312 | return 1; |
dea3101e JB |
2313 | |
2314 | icmd = &elsiocb->iocb; | |
2315 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
2316 | ||
2317 | /* For ADISC request, remainder of payload is service parameters */ | |
2318 | *((uint32_t *) (pcmd)) = ELS_CMD_ADISC; | |
92d7f7b0 | 2319 | pcmd += sizeof(uint32_t); |
dea3101e JB |
2320 | |
2321 | /* Fill in ADISC payload */ | |
2322 | ap = (ADISC *) pcmd; | |
2323 | ap->hardAL_PA = phba->fc_pref_ALPA; | |
92d7f7b0 JS |
2324 | memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name)); |
2325 | memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
2e0fef85 | 2326 | ap->DID = be32_to_cpu(vport->fc_myDID); |
dea3101e | 2327 | |
858c9f6c JS |
2328 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2329 | "Issue ADISC: did:x%x", | |
2330 | ndlp->nlp_DID, 0, 0); | |
2331 | ||
dea3101e JB |
2332 | phba->fc_stat.elsXmitADISC++; |
2333 | elsiocb->iocb_cmpl = lpfc_cmpl_els_adisc; | |
2e0fef85 | 2334 | spin_lock_irq(shost->host_lock); |
dea3101e | 2335 | ndlp->nlp_flag |= NLP_ADISC_SND; |
2e0fef85 | 2336 | spin_unlock_irq(shost->host_lock); |
3772a991 JS |
2337 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
2338 | IOCB_ERROR) { | |
2e0fef85 | 2339 | spin_lock_irq(shost->host_lock); |
dea3101e | 2340 | ndlp->nlp_flag &= ~NLP_ADISC_SND; |
2e0fef85 | 2341 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2342 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 2343 | return 1; |
dea3101e | 2344 | } |
c9f8735b | 2345 | return 0; |
dea3101e JB |
2346 | } |
2347 | ||
e59058c4 | 2348 | /** |
3621a710 | 2349 | * lpfc_cmpl_els_logo - Completion callback function for logo |
e59058c4 JS |
2350 | * @phba: pointer to lpfc hba data structure. |
2351 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
2352 | * @rspiocb: pointer to lpfc response iocb data structure. | |
2353 | * | |
2354 | * This routine is the completion function for issuing the ELS Logout (LOGO) | |
2355 | * command. If no error status was reported from the LOGO response, the | |
2356 | * state machine of the associated ndlp shall be invoked for transition with | |
2357 | * respect to NLP_EVT_CMPL_LOGO event. Otherwise, if error status was reported, | |
2358 | * the lpfc_els_retry() routine will be invoked to retry the LOGO command. | |
2359 | **/ | |
dea3101e | 2360 | static void |
2e0fef85 JS |
2361 | lpfc_cmpl_els_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
2362 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 2363 | { |
2e0fef85 JS |
2364 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; |
2365 | struct lpfc_vport *vport = ndlp->vport; | |
2366 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e JB |
2367 | IOCB_t *irsp; |
2368 | struct lpfc_sli *psli; | |
92494144 | 2369 | struct lpfcMboxq *mbox; |
dea3101e JB |
2370 | |
2371 | psli = &phba->sli; | |
2372 | /* we pass cmdiocb to state machine which needs rspiocb as well */ | |
2373 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
2374 | ||
2375 | irsp = &(rspiocb->iocb); | |
2e0fef85 | 2376 | spin_lock_irq(shost->host_lock); |
dea3101e | 2377 | ndlp->nlp_flag &= ~NLP_LOGO_SND; |
2e0fef85 | 2378 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2379 | |
858c9f6c JS |
2380 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2381 | "LOGO cmpl: status:x%x/x%x did:x%x", | |
2382 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
2383 | ndlp->nlp_DID); | |
dea3101e | 2384 | /* LOGO completes to NPort <nlp_DID> */ |
e8b62011 JS |
2385 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
2386 | "0105 LOGO completes to NPort x%x " | |
2387 | "Data: x%x x%x x%x x%x\n", | |
2388 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
2389 | irsp->ulpTimeout, vport->num_disc_nodes); | |
dea3101e | 2390 | /* Check to see if link went down during discovery */ |
2e0fef85 | 2391 | if (lpfc_els_chk_latt(vport)) |
dea3101e JB |
2392 | goto out; |
2393 | ||
92d7f7b0 JS |
2394 | if (ndlp->nlp_flag & NLP_TARGET_REMOVE) { |
2395 | /* NLP_EVT_DEVICE_RM should unregister the RPI | |
2396 | * which should abort all outstanding IOs. | |
2397 | */ | |
2398 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, | |
2399 | NLP_EVT_DEVICE_RM); | |
2400 | goto out; | |
2401 | } | |
2402 | ||
dea3101e JB |
2403 | if (irsp->ulpStatus) { |
2404 | /* Check for retry */ | |
2e0fef85 | 2405 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) |
dea3101e JB |
2406 | /* ELS command is being retried */ |
2407 | goto out; | |
dea3101e | 2408 | /* LOGO failed */ |
e40a02c1 JS |
2409 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
2410 | "2756 LOGO failure DID:%06X Status:x%x/x%x\n", | |
2411 | ndlp->nlp_DID, irsp->ulpStatus, | |
2412 | irsp->un.ulpWord[4]); | |
dea3101e | 2413 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ |
858c9f6c | 2414 | if (lpfc_error_lost_link(irsp)) |
dea3101e | 2415 | goto out; |
858c9f6c | 2416 | else |
2e0fef85 | 2417 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 2418 | NLP_EVT_CMPL_LOGO); |
e47c9093 | 2419 | } else |
5024ab17 JW |
2420 | /* Good status, call state machine. |
2421 | * This will unregister the rpi if needed. | |
2422 | */ | |
2e0fef85 | 2423 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 2424 | NLP_EVT_CMPL_LOGO); |
dea3101e JB |
2425 | out: |
2426 | lpfc_els_free_iocb(phba, cmdiocb); | |
92494144 JS |
2427 | /* If we are in pt2pt mode, we could rcv new S_ID on PLOGI */ |
2428 | if ((vport->fc_flag & FC_PT2PT) && | |
2429 | !(vport->fc_flag & FC_PT2PT_PLOGI)) { | |
2430 | phba->pport->fc_myDID = 0; | |
2431 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
2432 | if (mbox) { | |
2433 | lpfc_config_link(phba, mbox); | |
2434 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
2435 | mbox->vport = vport; | |
2436 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) == | |
2437 | MBX_NOT_FINISHED) { | |
2438 | mempool_free(mbox, phba->mbox_mem_pool); | |
2439 | } | |
2440 | } | |
2441 | } | |
dea3101e JB |
2442 | return; |
2443 | } | |
2444 | ||
e59058c4 | 2445 | /** |
3621a710 | 2446 | * lpfc_issue_els_logo - Issue a logo to an node on a vport |
e59058c4 JS |
2447 | * @vport: pointer to a virtual N_Port data structure. |
2448 | * @ndlp: pointer to a node-list data structure. | |
2449 | * @retry: number of retries to the command IOCB. | |
2450 | * | |
2451 | * This routine constructs and issues an ELS Logout (LOGO) iocb command | |
2452 | * to a remote node, referred by an @ndlp on a @vport. It constructs the | |
2453 | * payload of the IOCB, properly sets up the @ndlp state, and invokes the | |
2454 | * lpfc_sli_issue_iocb() routine to send out the LOGO ELS command. | |
2455 | * | |
2456 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
2457 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
2458 | * will be stored into the context1 field of the IOCB for the completion | |
2459 | * callback function to the LOGO ELS command. | |
2460 | * | |
2461 | * Return code | |
2462 | * 0 - successfully issued logo | |
2463 | * 1 - failed to issue logo | |
2464 | **/ | |
dea3101e | 2465 | int |
2e0fef85 | 2466 | lpfc_issue_els_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
dea3101e JB |
2467 | uint8_t retry) |
2468 | { | |
2e0fef85 JS |
2469 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
2470 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
2471 | IOCB_t *icmd; |
2472 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
2473 | uint8_t *pcmd; |
2474 | uint16_t cmdsize; | |
92d7f7b0 | 2475 | int rc; |
dea3101e | 2476 | |
98c9ea5c JS |
2477 | spin_lock_irq(shost->host_lock); |
2478 | if (ndlp->nlp_flag & NLP_LOGO_SND) { | |
2479 | spin_unlock_irq(shost->host_lock); | |
2480 | return 0; | |
2481 | } | |
2482 | spin_unlock_irq(shost->host_lock); | |
2483 | ||
92d7f7b0 | 2484 | cmdsize = (2 * sizeof(uint32_t)) + sizeof(struct lpfc_name); |
2e0fef85 JS |
2485 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
2486 | ndlp->nlp_DID, ELS_CMD_LOGO); | |
488d1469 | 2487 | if (!elsiocb) |
c9f8735b | 2488 | return 1; |
dea3101e JB |
2489 | |
2490 | icmd = &elsiocb->iocb; | |
2491 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
2492 | *((uint32_t *) (pcmd)) = ELS_CMD_LOGO; | |
92d7f7b0 | 2493 | pcmd += sizeof(uint32_t); |
dea3101e JB |
2494 | |
2495 | /* Fill in LOGO payload */ | |
2e0fef85 | 2496 | *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID); |
92d7f7b0 JS |
2497 | pcmd += sizeof(uint32_t); |
2498 | memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name)); | |
dea3101e | 2499 | |
858c9f6c JS |
2500 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2501 | "Issue LOGO: did:x%x", | |
2502 | ndlp->nlp_DID, 0, 0); | |
2503 | ||
dea3101e JB |
2504 | phba->fc_stat.elsXmitLOGO++; |
2505 | elsiocb->iocb_cmpl = lpfc_cmpl_els_logo; | |
2e0fef85 | 2506 | spin_lock_irq(shost->host_lock); |
dea3101e | 2507 | ndlp->nlp_flag |= NLP_LOGO_SND; |
2e0fef85 | 2508 | spin_unlock_irq(shost->host_lock); |
3772a991 | 2509 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
92d7f7b0 JS |
2510 | |
2511 | if (rc == IOCB_ERROR) { | |
2e0fef85 | 2512 | spin_lock_irq(shost->host_lock); |
dea3101e | 2513 | ndlp->nlp_flag &= ~NLP_LOGO_SND; |
2e0fef85 | 2514 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2515 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 2516 | return 1; |
dea3101e | 2517 | } |
c9f8735b | 2518 | return 0; |
dea3101e JB |
2519 | } |
2520 | ||
e59058c4 | 2521 | /** |
3621a710 | 2522 | * lpfc_cmpl_els_cmd - Completion callback function for generic els command |
e59058c4 JS |
2523 | * @phba: pointer to lpfc hba data structure. |
2524 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
2525 | * @rspiocb: pointer to lpfc response iocb data structure. | |
2526 | * | |
2527 | * This routine is a generic completion callback function for ELS commands. | |
2528 | * Specifically, it is the callback function which does not need to perform | |
2529 | * any command specific operations. It is currently used by the ELS command | |
2530 | * issuing routines for the ELS State Change Request (SCR), | |
2531 | * lpfc_issue_els_scr(), and the ELS Fibre Channel Address Resolution | |
2532 | * Protocol Response (FARPR) routine, lpfc_issue_els_farpr(). Other than | |
2533 | * certain debug loggings, this callback function simply invokes the | |
2534 | * lpfc_els_chk_latt() routine to check whether link went down during the | |
2535 | * discovery process. | |
2536 | **/ | |
dea3101e | 2537 | static void |
2e0fef85 JS |
2538 | lpfc_cmpl_els_cmd(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
2539 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 2540 | { |
2e0fef85 | 2541 | struct lpfc_vport *vport = cmdiocb->vport; |
dea3101e JB |
2542 | IOCB_t *irsp; |
2543 | ||
2544 | irsp = &rspiocb->iocb; | |
2545 | ||
858c9f6c JS |
2546 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2547 | "ELS cmd cmpl: status:x%x/x%x did:x%x", | |
2548 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
2549 | irsp->un.elsreq64.remoteID); | |
dea3101e | 2550 | /* ELS cmd tag <ulpIoTag> completes */ |
e8b62011 JS |
2551 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
2552 | "0106 ELS cmd tag x%x completes Data: x%x x%x x%x\n", | |
2553 | irsp->ulpIoTag, irsp->ulpStatus, | |
2554 | irsp->un.ulpWord[4], irsp->ulpTimeout); | |
dea3101e | 2555 | /* Check to see if link went down during discovery */ |
2e0fef85 | 2556 | lpfc_els_chk_latt(vport); |
dea3101e JB |
2557 | lpfc_els_free_iocb(phba, cmdiocb); |
2558 | return; | |
2559 | } | |
2560 | ||
e59058c4 | 2561 | /** |
3621a710 | 2562 | * lpfc_issue_els_scr - Issue a scr to an node on a vport |
e59058c4 JS |
2563 | * @vport: pointer to a host virtual N_Port data structure. |
2564 | * @nportid: N_Port identifier to the remote node. | |
2565 | * @retry: number of retries to the command IOCB. | |
2566 | * | |
2567 | * This routine issues a State Change Request (SCR) to a fabric node | |
2568 | * on a @vport. The remote node @nportid is passed into the function. It | |
2569 | * first search the @vport node list to find the matching ndlp. If no such | |
2570 | * ndlp is found, a new ndlp shall be created for this (SCR) purpose. An | |
2571 | * IOCB is allocated, payload prepared, and the lpfc_sli_issue_iocb() | |
2572 | * routine is invoked to send the SCR IOCB. | |
2573 | * | |
2574 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
2575 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
2576 | * will be stored into the context1 field of the IOCB for the completion | |
2577 | * callback function to the SCR ELS command. | |
2578 | * | |
2579 | * Return code | |
2580 | * 0 - Successfully issued scr command | |
2581 | * 1 - Failed to issue scr command | |
2582 | **/ | |
dea3101e | 2583 | int |
2e0fef85 | 2584 | lpfc_issue_els_scr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry) |
dea3101e | 2585 | { |
2e0fef85 | 2586 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
2587 | IOCB_t *icmd; |
2588 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
2589 | struct lpfc_sli *psli; |
2590 | uint8_t *pcmd; | |
2591 | uint16_t cmdsize; | |
2592 | struct lpfc_nodelist *ndlp; | |
2593 | ||
2594 | psli = &phba->sli; | |
92d7f7b0 | 2595 | cmdsize = (sizeof(uint32_t) + sizeof(SCR)); |
dea3101e | 2596 | |
e47c9093 JS |
2597 | ndlp = lpfc_findnode_did(vport, nportid); |
2598 | if (!ndlp) { | |
2599 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
2600 | if (!ndlp) | |
2601 | return 1; | |
2602 | lpfc_nlp_init(vport, ndlp, nportid); | |
2603 | lpfc_enqueue_node(vport, ndlp); | |
2604 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
2605 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
2606 | if (!ndlp) | |
2607 | return 1; | |
2608 | } | |
2e0fef85 JS |
2609 | |
2610 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, | |
2611 | ndlp->nlp_DID, ELS_CMD_SCR); | |
dea3101e | 2612 | |
488d1469 | 2613 | if (!elsiocb) { |
fa4066b6 JS |
2614 | /* This will trigger the release of the node just |
2615 | * allocated | |
2616 | */ | |
329f9bc7 | 2617 | lpfc_nlp_put(ndlp); |
c9f8735b | 2618 | return 1; |
dea3101e JB |
2619 | } |
2620 | ||
2621 | icmd = &elsiocb->iocb; | |
2622 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
2623 | ||
2624 | *((uint32_t *) (pcmd)) = ELS_CMD_SCR; | |
92d7f7b0 | 2625 | pcmd += sizeof(uint32_t); |
dea3101e JB |
2626 | |
2627 | /* For SCR, remainder of payload is SCR parameter page */ | |
92d7f7b0 | 2628 | memset(pcmd, 0, sizeof(SCR)); |
dea3101e JB |
2629 | ((SCR *) pcmd)->Function = SCR_FUNC_FULL; |
2630 | ||
858c9f6c JS |
2631 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2632 | "Issue SCR: did:x%x", | |
2633 | ndlp->nlp_DID, 0, 0); | |
2634 | ||
dea3101e JB |
2635 | phba->fc_stat.elsXmitSCR++; |
2636 | elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd; | |
3772a991 JS |
2637 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
2638 | IOCB_ERROR) { | |
fa4066b6 JS |
2639 | /* The additional lpfc_nlp_put will cause the following |
2640 | * lpfc_els_free_iocb routine to trigger the rlease of | |
2641 | * the node. | |
2642 | */ | |
329f9bc7 | 2643 | lpfc_nlp_put(ndlp); |
dea3101e | 2644 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 2645 | return 1; |
dea3101e | 2646 | } |
fa4066b6 JS |
2647 | /* This will cause the callback-function lpfc_cmpl_els_cmd to |
2648 | * trigger the release of node. | |
2649 | */ | |
329f9bc7 | 2650 | lpfc_nlp_put(ndlp); |
c9f8735b | 2651 | return 0; |
dea3101e JB |
2652 | } |
2653 | ||
e59058c4 | 2654 | /** |
3621a710 | 2655 | * lpfc_issue_els_farpr - Issue a farp to an node on a vport |
e59058c4 JS |
2656 | * @vport: pointer to a host virtual N_Port data structure. |
2657 | * @nportid: N_Port identifier to the remote node. | |
2658 | * @retry: number of retries to the command IOCB. | |
2659 | * | |
2660 | * This routine issues a Fibre Channel Address Resolution Response | |
2661 | * (FARPR) to a node on a vport. The remote node N_Port identifier (@nportid) | |
2662 | * is passed into the function. It first search the @vport node list to find | |
2663 | * the matching ndlp. If no such ndlp is found, a new ndlp shall be created | |
2664 | * for this (FARPR) purpose. An IOCB is allocated, payload prepared, and the | |
2665 | * lpfc_sli_issue_iocb() routine is invoked to send the FARPR ELS command. | |
2666 | * | |
2667 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
2668 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
2669 | * will be stored into the context1 field of the IOCB for the completion | |
2670 | * callback function to the PARPR ELS command. | |
2671 | * | |
2672 | * Return code | |
2673 | * 0 - Successfully issued farpr command | |
2674 | * 1 - Failed to issue farpr command | |
2675 | **/ | |
dea3101e | 2676 | static int |
2e0fef85 | 2677 | lpfc_issue_els_farpr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry) |
dea3101e | 2678 | { |
2e0fef85 | 2679 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
2680 | IOCB_t *icmd; |
2681 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
2682 | struct lpfc_sli *psli; |
2683 | FARP *fp; | |
2684 | uint8_t *pcmd; | |
2685 | uint32_t *lp; | |
2686 | uint16_t cmdsize; | |
2687 | struct lpfc_nodelist *ondlp; | |
2688 | struct lpfc_nodelist *ndlp; | |
2689 | ||
2690 | psli = &phba->sli; | |
92d7f7b0 | 2691 | cmdsize = (sizeof(uint32_t) + sizeof(FARP)); |
dea3101e | 2692 | |
e47c9093 JS |
2693 | ndlp = lpfc_findnode_did(vport, nportid); |
2694 | if (!ndlp) { | |
2695 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
2696 | if (!ndlp) | |
2697 | return 1; | |
2698 | lpfc_nlp_init(vport, ndlp, nportid); | |
2699 | lpfc_enqueue_node(vport, ndlp); | |
2700 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
2701 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
2702 | if (!ndlp) | |
2703 | return 1; | |
2704 | } | |
2e0fef85 JS |
2705 | |
2706 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, | |
2707 | ndlp->nlp_DID, ELS_CMD_RNID); | |
488d1469 | 2708 | if (!elsiocb) { |
fa4066b6 JS |
2709 | /* This will trigger the release of the node just |
2710 | * allocated | |
2711 | */ | |
329f9bc7 | 2712 | lpfc_nlp_put(ndlp); |
c9f8735b | 2713 | return 1; |
dea3101e JB |
2714 | } |
2715 | ||
2716 | icmd = &elsiocb->iocb; | |
2717 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
2718 | ||
2719 | *((uint32_t *) (pcmd)) = ELS_CMD_FARPR; | |
92d7f7b0 | 2720 | pcmd += sizeof(uint32_t); |
dea3101e JB |
2721 | |
2722 | /* Fill in FARPR payload */ | |
2723 | fp = (FARP *) (pcmd); | |
92d7f7b0 | 2724 | memset(fp, 0, sizeof(FARP)); |
dea3101e JB |
2725 | lp = (uint32_t *) pcmd; |
2726 | *lp++ = be32_to_cpu(nportid); | |
2e0fef85 | 2727 | *lp++ = be32_to_cpu(vport->fc_myDID); |
dea3101e JB |
2728 | fp->Rflags = 0; |
2729 | fp->Mflags = (FARP_MATCH_PORT | FARP_MATCH_NODE); | |
2730 | ||
92d7f7b0 JS |
2731 | memcpy(&fp->RportName, &vport->fc_portname, sizeof(struct lpfc_name)); |
2732 | memcpy(&fp->RnodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
2e0fef85 | 2733 | ondlp = lpfc_findnode_did(vport, nportid); |
e47c9093 | 2734 | if (ondlp && NLP_CHK_NODE_ACT(ondlp)) { |
dea3101e | 2735 | memcpy(&fp->OportName, &ondlp->nlp_portname, |
92d7f7b0 | 2736 | sizeof(struct lpfc_name)); |
dea3101e | 2737 | memcpy(&fp->OnodeName, &ondlp->nlp_nodename, |
92d7f7b0 | 2738 | sizeof(struct lpfc_name)); |
dea3101e JB |
2739 | } |
2740 | ||
858c9f6c JS |
2741 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2742 | "Issue FARPR: did:x%x", | |
2743 | ndlp->nlp_DID, 0, 0); | |
2744 | ||
dea3101e JB |
2745 | phba->fc_stat.elsXmitFARPR++; |
2746 | elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd; | |
3772a991 JS |
2747 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
2748 | IOCB_ERROR) { | |
fa4066b6 JS |
2749 | /* The additional lpfc_nlp_put will cause the following |
2750 | * lpfc_els_free_iocb routine to trigger the release of | |
2751 | * the node. | |
2752 | */ | |
329f9bc7 | 2753 | lpfc_nlp_put(ndlp); |
dea3101e | 2754 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 2755 | return 1; |
dea3101e | 2756 | } |
fa4066b6 JS |
2757 | /* This will cause the callback-function lpfc_cmpl_els_cmd to |
2758 | * trigger the release of the node. | |
2759 | */ | |
329f9bc7 | 2760 | lpfc_nlp_put(ndlp); |
c9f8735b | 2761 | return 0; |
dea3101e JB |
2762 | } |
2763 | ||
e59058c4 | 2764 | /** |
3621a710 | 2765 | * lpfc_cancel_retry_delay_tmo - Cancel the timer with delayed iocb-cmd retry |
e59058c4 JS |
2766 | * @vport: pointer to a host virtual N_Port data structure. |
2767 | * @nlp: pointer to a node-list data structure. | |
2768 | * | |
2769 | * This routine cancels the timer with a delayed IOCB-command retry for | |
2770 | * a @vport's @ndlp. It stops the timer for the delayed function retrial and | |
2771 | * removes the ELS retry event if it presents. In addition, if the | |
2772 | * NLP_NPR_2B_DISC bit is set in the @nlp's nlp_flag bitmap, ADISC IOCB | |
2773 | * commands are sent for the @vport's nodes that require issuing discovery | |
2774 | * ADISC. | |
2775 | **/ | |
fdcebe28 | 2776 | void |
2e0fef85 | 2777 | lpfc_cancel_retry_delay_tmo(struct lpfc_vport *vport, struct lpfc_nodelist *nlp) |
fdcebe28 | 2778 | { |
2e0fef85 | 2779 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
e47c9093 | 2780 | struct lpfc_work_evt *evtp; |
2e0fef85 | 2781 | |
0d2b6b83 JS |
2782 | if (!(nlp->nlp_flag & NLP_DELAY_TMO)) |
2783 | return; | |
2e0fef85 | 2784 | spin_lock_irq(shost->host_lock); |
fdcebe28 | 2785 | nlp->nlp_flag &= ~NLP_DELAY_TMO; |
2e0fef85 | 2786 | spin_unlock_irq(shost->host_lock); |
fdcebe28 JS |
2787 | del_timer_sync(&nlp->nlp_delayfunc); |
2788 | nlp->nlp_last_elscmd = 0; | |
e47c9093 | 2789 | if (!list_empty(&nlp->els_retry_evt.evt_listp)) { |
fdcebe28 | 2790 | list_del_init(&nlp->els_retry_evt.evt_listp); |
e47c9093 JS |
2791 | /* Decrement nlp reference count held for the delayed retry */ |
2792 | evtp = &nlp->els_retry_evt; | |
2793 | lpfc_nlp_put((struct lpfc_nodelist *)evtp->evt_arg1); | |
2794 | } | |
fdcebe28 | 2795 | if (nlp->nlp_flag & NLP_NPR_2B_DISC) { |
2e0fef85 | 2796 | spin_lock_irq(shost->host_lock); |
fdcebe28 | 2797 | nlp->nlp_flag &= ~NLP_NPR_2B_DISC; |
2e0fef85 JS |
2798 | spin_unlock_irq(shost->host_lock); |
2799 | if (vport->num_disc_nodes) { | |
0d2b6b83 JS |
2800 | if (vport->port_state < LPFC_VPORT_READY) { |
2801 | /* Check if there are more ADISCs to be sent */ | |
2802 | lpfc_more_adisc(vport); | |
0d2b6b83 JS |
2803 | } else { |
2804 | /* Check if there are more PLOGIs to be sent */ | |
2805 | lpfc_more_plogi(vport); | |
90160e01 JS |
2806 | if (vport->num_disc_nodes == 0) { |
2807 | spin_lock_irq(shost->host_lock); | |
2808 | vport->fc_flag &= ~FC_NDISC_ACTIVE; | |
2809 | spin_unlock_irq(shost->host_lock); | |
2810 | lpfc_can_disctmo(vport); | |
2811 | lpfc_end_rscn(vport); | |
2812 | } | |
fdcebe28 JS |
2813 | } |
2814 | } | |
2815 | } | |
2816 | return; | |
2817 | } | |
2818 | ||
e59058c4 | 2819 | /** |
3621a710 | 2820 | * lpfc_els_retry_delay - Timer function with a ndlp delayed function timer |
e59058c4 JS |
2821 | * @ptr: holder for the pointer to the timer function associated data (ndlp). |
2822 | * | |
2823 | * This routine is invoked by the ndlp delayed-function timer to check | |
2824 | * whether there is any pending ELS retry event(s) with the node. If not, it | |
2825 | * simply returns. Otherwise, if there is at least one ELS delayed event, it | |
2826 | * adds the delayed events to the HBA work list and invokes the | |
2827 | * lpfc_worker_wake_up() routine to wake up worker thread to process the | |
2828 | * event. Note that lpfc_nlp_get() is called before posting the event to | |
2829 | * the work list to hold reference count of ndlp so that it guarantees the | |
2830 | * reference to ndlp will still be available when the worker thread gets | |
2831 | * to the event associated with the ndlp. | |
2832 | **/ | |
dea3101e JB |
2833 | void |
2834 | lpfc_els_retry_delay(unsigned long ptr) | |
2835 | { | |
2e0fef85 JS |
2836 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) ptr; |
2837 | struct lpfc_vport *vport = ndlp->vport; | |
2e0fef85 | 2838 | struct lpfc_hba *phba = vport->phba; |
92d7f7b0 | 2839 | unsigned long flags; |
2e0fef85 | 2840 | struct lpfc_work_evt *evtp = &ndlp->els_retry_evt; |
dea3101e | 2841 | |
92d7f7b0 | 2842 | spin_lock_irqsave(&phba->hbalock, flags); |
dea3101e | 2843 | if (!list_empty(&evtp->evt_listp)) { |
92d7f7b0 | 2844 | spin_unlock_irqrestore(&phba->hbalock, flags); |
dea3101e JB |
2845 | return; |
2846 | } | |
2847 | ||
fa4066b6 JS |
2848 | /* We need to hold the node by incrementing the reference |
2849 | * count until the queued work is done | |
2850 | */ | |
2851 | evtp->evt_arg1 = lpfc_nlp_get(ndlp); | |
5e9d9b82 JS |
2852 | if (evtp->evt_arg1) { |
2853 | evtp->evt = LPFC_EVT_ELS_RETRY; | |
2854 | list_add_tail(&evtp->evt_listp, &phba->work_list); | |
92d7f7b0 | 2855 | lpfc_worker_wake_up(phba); |
5e9d9b82 | 2856 | } |
92d7f7b0 | 2857 | spin_unlock_irqrestore(&phba->hbalock, flags); |
dea3101e JB |
2858 | return; |
2859 | } | |
2860 | ||
e59058c4 | 2861 | /** |
3621a710 | 2862 | * lpfc_els_retry_delay_handler - Work thread handler for ndlp delayed function |
e59058c4 JS |
2863 | * @ndlp: pointer to a node-list data structure. |
2864 | * | |
2865 | * This routine is the worker-thread handler for processing the @ndlp delayed | |
2866 | * event(s), posted by the lpfc_els_retry_delay() routine. It simply retrieves | |
2867 | * the last ELS command from the associated ndlp and invokes the proper ELS | |
2868 | * function according to the delayed ELS command to retry the command. | |
2869 | **/ | |
dea3101e JB |
2870 | void |
2871 | lpfc_els_retry_delay_handler(struct lpfc_nodelist *ndlp) | |
2872 | { | |
2e0fef85 JS |
2873 | struct lpfc_vport *vport = ndlp->vport; |
2874 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
2875 | uint32_t cmd, did, retry; | |
dea3101e | 2876 | |
2e0fef85 | 2877 | spin_lock_irq(shost->host_lock); |
5024ab17 JW |
2878 | did = ndlp->nlp_DID; |
2879 | cmd = ndlp->nlp_last_elscmd; | |
2880 | ndlp->nlp_last_elscmd = 0; | |
dea3101e JB |
2881 | |
2882 | if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { | |
2e0fef85 | 2883 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
2884 | return; |
2885 | } | |
2886 | ||
2887 | ndlp->nlp_flag &= ~NLP_DELAY_TMO; | |
2e0fef85 | 2888 | spin_unlock_irq(shost->host_lock); |
1a169689 JS |
2889 | /* |
2890 | * If a discovery event readded nlp_delayfunc after timer | |
2891 | * firing and before processing the timer, cancel the | |
2892 | * nlp_delayfunc. | |
2893 | */ | |
2894 | del_timer_sync(&ndlp->nlp_delayfunc); | |
dea3101e | 2895 | retry = ndlp->nlp_retry; |
4d9ab994 | 2896 | ndlp->nlp_retry = 0; |
dea3101e JB |
2897 | |
2898 | switch (cmd) { | |
2899 | case ELS_CMD_FLOGI: | |
2e0fef85 | 2900 | lpfc_issue_els_flogi(vport, ndlp, retry); |
dea3101e JB |
2901 | break; |
2902 | case ELS_CMD_PLOGI: | |
2e0fef85 | 2903 | if (!lpfc_issue_els_plogi(vport, ndlp->nlp_DID, retry)) { |
5024ab17 | 2904 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 2905 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); |
6ad42535 | 2906 | } |
dea3101e JB |
2907 | break; |
2908 | case ELS_CMD_ADISC: | |
2e0fef85 | 2909 | if (!lpfc_issue_els_adisc(vport, ndlp, retry)) { |
5024ab17 | 2910 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 2911 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); |
6ad42535 | 2912 | } |
dea3101e JB |
2913 | break; |
2914 | case ELS_CMD_PRLI: | |
2e0fef85 | 2915 | if (!lpfc_issue_els_prli(vport, ndlp, retry)) { |
5024ab17 | 2916 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 2917 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); |
6ad42535 | 2918 | } |
dea3101e JB |
2919 | break; |
2920 | case ELS_CMD_LOGO: | |
2e0fef85 | 2921 | if (!lpfc_issue_els_logo(vport, ndlp, retry)) { |
5024ab17 | 2922 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 2923 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
6ad42535 | 2924 | } |
dea3101e | 2925 | break; |
92d7f7b0 | 2926 | case ELS_CMD_FDISC: |
fedd3b7b JS |
2927 | if (!(vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI)) |
2928 | lpfc_issue_els_fdisc(vport, ndlp, retry); | |
92d7f7b0 | 2929 | break; |
dea3101e JB |
2930 | } |
2931 | return; | |
2932 | } | |
2933 | ||
e59058c4 | 2934 | /** |
3621a710 | 2935 | * lpfc_els_retry - Make retry decision on an els command iocb |
e59058c4 JS |
2936 | * @phba: pointer to lpfc hba data structure. |
2937 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
2938 | * @rspiocb: pointer to lpfc response iocb data structure. | |
2939 | * | |
2940 | * This routine makes a retry decision on an ELS command IOCB, which has | |
2941 | * failed. The following ELS IOCBs use this function for retrying the command | |
2942 | * when previously issued command responsed with error status: FLOGI, PLOGI, | |
2943 | * PRLI, ADISC, LOGO, and FDISC. Based on the ELS command type and the | |
2944 | * returned error status, it makes the decision whether a retry shall be | |
2945 | * issued for the command, and whether a retry shall be made immediately or | |
2946 | * delayed. In the former case, the corresponding ELS command issuing-function | |
2947 | * is called to retry the command. In the later case, the ELS command shall | |
2948 | * be posted to the ndlp delayed event and delayed function timer set to the | |
2949 | * ndlp for the delayed command issusing. | |
2950 | * | |
2951 | * Return code | |
2952 | * 0 - No retry of els command is made | |
2953 | * 1 - Immediate or delayed retry of els command is made | |
2954 | **/ | |
dea3101e | 2955 | static int |
2e0fef85 JS |
2956 | lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
2957 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 2958 | { |
2e0fef85 JS |
2959 | struct lpfc_vport *vport = cmdiocb->vport; |
2960 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
2961 | IOCB_t *irsp = &rspiocb->iocb; | |
2962 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
2963 | struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
dea3101e JB |
2964 | uint32_t *elscmd; |
2965 | struct ls_rjt stat; | |
2e0fef85 | 2966 | int retry = 0, maxretry = lpfc_max_els_tries, delay = 0; |
98c9ea5c | 2967 | int logerr = 0; |
2e0fef85 | 2968 | uint32_t cmd = 0; |
488d1469 | 2969 | uint32_t did; |
dea3101e | 2970 | |
488d1469 | 2971 | |
dea3101e JB |
2972 | /* Note: context2 may be 0 for internal driver abort |
2973 | * of delays ELS command. | |
2974 | */ | |
2975 | ||
2976 | if (pcmd && pcmd->virt) { | |
2977 | elscmd = (uint32_t *) (pcmd->virt); | |
2978 | cmd = *elscmd++; | |
2979 | } | |
2980 | ||
e47c9093 | 2981 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) |
488d1469 JS |
2982 | did = ndlp->nlp_DID; |
2983 | else { | |
2984 | /* We should only hit this case for retrying PLOGI */ | |
2985 | did = irsp->un.elsreq64.remoteID; | |
2e0fef85 | 2986 | ndlp = lpfc_findnode_did(vport, did); |
e47c9093 JS |
2987 | if ((!ndlp || !NLP_CHK_NODE_ACT(ndlp)) |
2988 | && (cmd != ELS_CMD_PLOGI)) | |
488d1469 JS |
2989 | return 1; |
2990 | } | |
2991 | ||
858c9f6c JS |
2992 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2993 | "Retry ELS: wd7:x%x wd4:x%x did:x%x", | |
2994 | *(((uint32_t *) irsp) + 7), irsp->un.ulpWord[4], ndlp->nlp_DID); | |
2995 | ||
dea3101e JB |
2996 | switch (irsp->ulpStatus) { |
2997 | case IOSTAT_FCP_RSP_ERROR: | |
1151e3ec | 2998 | break; |
dea3101e | 2999 | case IOSTAT_REMOTE_STOP: |
1151e3ec JS |
3000 | if (phba->sli_rev == LPFC_SLI_REV4) { |
3001 | /* This IO was aborted by the target, we don't | |
3002 | * know the rxid and because we did not send the | |
3003 | * ABTS we cannot generate and RRQ. | |
3004 | */ | |
3005 | lpfc_set_rrq_active(phba, ndlp, | |
ee0f4fe1 | 3006 | cmdiocb->sli4_lxritag, 0, 0); |
1151e3ec | 3007 | } |
dea3101e | 3008 | break; |
dea3101e JB |
3009 | case IOSTAT_LOCAL_REJECT: |
3010 | switch ((irsp->un.ulpWord[4] & 0xff)) { | |
3011 | case IOERR_LOOP_OPEN_FAILURE: | |
eaf15d5b JS |
3012 | if (cmd == ELS_CMD_FLOGI) { |
3013 | if (PCI_DEVICE_ID_HORNET == | |
3014 | phba->pcidev->device) { | |
76a95d75 | 3015 | phba->fc_topology = LPFC_TOPOLOGY_LOOP; |
eaf15d5b JS |
3016 | phba->pport->fc_myDID = 0; |
3017 | phba->alpa_map[0] = 0; | |
3018 | phba->alpa_map[1] = 0; | |
3019 | } | |
3020 | } | |
2e0fef85 | 3021 | if (cmd == ELS_CMD_PLOGI && cmdiocb->retry == 0) |
92d7f7b0 | 3022 | delay = 1000; |
dea3101e JB |
3023 | retry = 1; |
3024 | break; | |
3025 | ||
92d7f7b0 | 3026 | case IOERR_ILLEGAL_COMMAND: |
7f5f3d0d JS |
3027 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
3028 | "0124 Retry illegal cmd x%x " | |
3029 | "retry:x%x delay:x%x\n", | |
3030 | cmd, cmdiocb->retry, delay); | |
3031 | retry = 1; | |
3032 | /* All command's retry policy */ | |
3033 | maxretry = 8; | |
3034 | if (cmdiocb->retry > 2) | |
3035 | delay = 1000; | |
92d7f7b0 JS |
3036 | break; |
3037 | ||
dea3101e | 3038 | case IOERR_NO_RESOURCES: |
98c9ea5c | 3039 | logerr = 1; /* HBA out of resources */ |
858c9f6c JS |
3040 | retry = 1; |
3041 | if (cmdiocb->retry > 100) | |
3042 | delay = 100; | |
3043 | maxretry = 250; | |
3044 | break; | |
3045 | ||
3046 | case IOERR_ILLEGAL_FRAME: | |
92d7f7b0 | 3047 | delay = 100; |
dea3101e JB |
3048 | retry = 1; |
3049 | break; | |
3050 | ||
858c9f6c | 3051 | case IOERR_SEQUENCE_TIMEOUT: |
dea3101e JB |
3052 | case IOERR_INVALID_RPI: |
3053 | retry = 1; | |
3054 | break; | |
3055 | } | |
3056 | break; | |
3057 | ||
3058 | case IOSTAT_NPORT_RJT: | |
3059 | case IOSTAT_FABRIC_RJT: | |
3060 | if (irsp->un.ulpWord[4] & RJT_UNAVAIL_TEMP) { | |
3061 | retry = 1; | |
3062 | break; | |
3063 | } | |
3064 | break; | |
3065 | ||
3066 | case IOSTAT_NPORT_BSY: | |
3067 | case IOSTAT_FABRIC_BSY: | |
98c9ea5c | 3068 | logerr = 1; /* Fabric / Remote NPort out of resources */ |
dea3101e JB |
3069 | retry = 1; |
3070 | break; | |
3071 | ||
3072 | case IOSTAT_LS_RJT: | |
3073 | stat.un.lsRjtError = be32_to_cpu(irsp->un.ulpWord[4]); | |
3074 | /* Added for Vendor specifc support | |
3075 | * Just keep retrying for these Rsn / Exp codes | |
3076 | */ | |
3077 | switch (stat.un.b.lsRjtRsnCode) { | |
3078 | case LSRJT_UNABLE_TPC: | |
3079 | if (stat.un.b.lsRjtRsnCodeExp == | |
3080 | LSEXP_CMD_IN_PROGRESS) { | |
3081 | if (cmd == ELS_CMD_PLOGI) { | |
92d7f7b0 | 3082 | delay = 1000; |
dea3101e JB |
3083 | maxretry = 48; |
3084 | } | |
3085 | retry = 1; | |
3086 | break; | |
3087 | } | |
ffc95493 JS |
3088 | if (stat.un.b.lsRjtRsnCodeExp == |
3089 | LSEXP_CANT_GIVE_DATA) { | |
3090 | if (cmd == ELS_CMD_PLOGI) { | |
3091 | delay = 1000; | |
3092 | maxretry = 48; | |
3093 | } | |
3094 | retry = 1; | |
3095 | break; | |
3096 | } | |
dea3101e | 3097 | if (cmd == ELS_CMD_PLOGI) { |
92d7f7b0 | 3098 | delay = 1000; |
dea3101e JB |
3099 | maxretry = lpfc_max_els_tries + 1; |
3100 | retry = 1; | |
3101 | break; | |
3102 | } | |
92d7f7b0 JS |
3103 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && |
3104 | (cmd == ELS_CMD_FDISC) && | |
3105 | (stat.un.b.lsRjtRsnCodeExp == LSEXP_OUT_OF_RESOURCE)){ | |
e8b62011 JS |
3106 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
3107 | "0125 FDISC Failed (x%x). " | |
3108 | "Fabric out of resources\n", | |
3109 | stat.un.lsRjtError); | |
92d7f7b0 JS |
3110 | lpfc_vport_set_state(vport, |
3111 | FC_VPORT_NO_FABRIC_RSCS); | |
3112 | } | |
dea3101e JB |
3113 | break; |
3114 | ||
3115 | case LSRJT_LOGICAL_BSY: | |
858c9f6c JS |
3116 | if ((cmd == ELS_CMD_PLOGI) || |
3117 | (cmd == ELS_CMD_PRLI)) { | |
92d7f7b0 | 3118 | delay = 1000; |
dea3101e | 3119 | maxretry = 48; |
92d7f7b0 | 3120 | } else if (cmd == ELS_CMD_FDISC) { |
51ef4c26 JS |
3121 | /* FDISC retry policy */ |
3122 | maxretry = 48; | |
3123 | if (cmdiocb->retry >= 32) | |
3124 | delay = 1000; | |
dea3101e JB |
3125 | } |
3126 | retry = 1; | |
3127 | break; | |
92d7f7b0 JS |
3128 | |
3129 | case LSRJT_LOGICAL_ERR: | |
7f5f3d0d JS |
3130 | /* There are some cases where switches return this |
3131 | * error when they are not ready and should be returning | |
3132 | * Logical Busy. We should delay every time. | |
3133 | */ | |
3134 | if (cmd == ELS_CMD_FDISC && | |
3135 | stat.un.b.lsRjtRsnCodeExp == LSEXP_PORT_LOGIN_REQ) { | |
3136 | maxretry = 3; | |
3137 | delay = 1000; | |
3138 | retry = 1; | |
3139 | break; | |
3140 | } | |
92d7f7b0 JS |
3141 | case LSRJT_PROTOCOL_ERR: |
3142 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && | |
3143 | (cmd == ELS_CMD_FDISC) && | |
3144 | ((stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_PNAME) || | |
3145 | (stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_NPORT_ID)) | |
3146 | ) { | |
e8b62011 | 3147 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
d7c255b2 | 3148 | "0122 FDISC Failed (x%x). " |
e8b62011 JS |
3149 | "Fabric Detected Bad WWN\n", |
3150 | stat.un.lsRjtError); | |
92d7f7b0 JS |
3151 | lpfc_vport_set_state(vport, |
3152 | FC_VPORT_FABRIC_REJ_WWN); | |
3153 | } | |
3154 | break; | |
dea3101e JB |
3155 | } |
3156 | break; | |
3157 | ||
3158 | case IOSTAT_INTERMED_RSP: | |
3159 | case IOSTAT_BA_RJT: | |
3160 | break; | |
3161 | ||
3162 | default: | |
3163 | break; | |
3164 | } | |
3165 | ||
488d1469 | 3166 | if (did == FDMI_DID) |
dea3101e | 3167 | retry = 1; |
dea3101e | 3168 | |
df9e1b59 | 3169 | if ((cmd == ELS_CMD_FLOGI) && |
76a95d75 | 3170 | (phba->fc_topology != LPFC_TOPOLOGY_LOOP) && |
1b32f6aa | 3171 | !lpfc_error_lost_link(irsp)) { |
98c9ea5c JS |
3172 | /* FLOGI retry policy */ |
3173 | retry = 1; | |
df9e1b59 | 3174 | /* retry FLOGI forever */ |
6669f9bb JS |
3175 | maxretry = 0; |
3176 | if (cmdiocb->retry >= 100) | |
3177 | delay = 5000; | |
3178 | else if (cmdiocb->retry >= 32) | |
98c9ea5c | 3179 | delay = 1000; |
df9e1b59 JS |
3180 | } else if ((cmd == ELS_CMD_FDISC) && !lpfc_error_lost_link(irsp)) { |
3181 | /* retry FDISCs every second up to devloss */ | |
3182 | retry = 1; | |
3183 | maxretry = vport->cfg_devloss_tmo; | |
3184 | delay = 1000; | |
98c9ea5c JS |
3185 | } |
3186 | ||
6669f9bb JS |
3187 | cmdiocb->retry++; |
3188 | if (maxretry && (cmdiocb->retry >= maxretry)) { | |
dea3101e JB |
3189 | phba->fc_stat.elsRetryExceeded++; |
3190 | retry = 0; | |
3191 | } | |
3192 | ||
ed957684 JS |
3193 | if ((vport->load_flag & FC_UNLOADING) != 0) |
3194 | retry = 0; | |
3195 | ||
dea3101e | 3196 | if (retry) { |
38b92ef8 JS |
3197 | if ((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_FDISC)) { |
3198 | /* Stop retrying PLOGI and FDISC if in FCF discovery */ | |
3199 | if (phba->fcf.fcf_flag & FCF_DISCOVERY) { | |
3200 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
3201 | "2849 Stop retry ELS command " | |
3202 | "x%x to remote NPORT x%x, " | |
3203 | "Data: x%x x%x\n", cmd, did, | |
3204 | cmdiocb->retry, delay); | |
3205 | return 0; | |
3206 | } | |
3207 | } | |
dea3101e JB |
3208 | |
3209 | /* Retry ELS command <elsCmd> to remote NPORT <did> */ | |
e8b62011 JS |
3210 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3211 | "0107 Retry ELS command x%x to remote " | |
3212 | "NPORT x%x Data: x%x x%x\n", | |
3213 | cmd, did, cmdiocb->retry, delay); | |
dea3101e | 3214 | |
858c9f6c JS |
3215 | if (((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_ADISC)) && |
3216 | ((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) || | |
3217 | ((irsp->un.ulpWord[4] & 0xff) != IOERR_NO_RESOURCES))) { | |
3218 | /* Don't reset timer for no resources */ | |
3219 | ||
dea3101e | 3220 | /* If discovery / RSCN timer is running, reset it */ |
2e0fef85 | 3221 | if (timer_pending(&vport->fc_disctmo) || |
92d7f7b0 | 3222 | (vport->fc_flag & FC_RSCN_MODE)) |
2e0fef85 | 3223 | lpfc_set_disctmo(vport); |
dea3101e JB |
3224 | } |
3225 | ||
3226 | phba->fc_stat.elsXmitRetry++; | |
58da1ffb | 3227 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && delay) { |
dea3101e JB |
3228 | phba->fc_stat.elsDelayRetry++; |
3229 | ndlp->nlp_retry = cmdiocb->retry; | |
3230 | ||
92d7f7b0 JS |
3231 | /* delay is specified in milliseconds */ |
3232 | mod_timer(&ndlp->nlp_delayfunc, | |
3233 | jiffies + msecs_to_jiffies(delay)); | |
2e0fef85 | 3234 | spin_lock_irq(shost->host_lock); |
dea3101e | 3235 | ndlp->nlp_flag |= NLP_DELAY_TMO; |
2e0fef85 | 3236 | spin_unlock_irq(shost->host_lock); |
dea3101e | 3237 | |
5024ab17 | 3238 | ndlp->nlp_prev_state = ndlp->nlp_state; |
858c9f6c JS |
3239 | if (cmd == ELS_CMD_PRLI) |
3240 | lpfc_nlp_set_state(vport, ndlp, | |
3241 | NLP_STE_REG_LOGIN_ISSUE); | |
3242 | else | |
3243 | lpfc_nlp_set_state(vport, ndlp, | |
3244 | NLP_STE_NPR_NODE); | |
dea3101e JB |
3245 | ndlp->nlp_last_elscmd = cmd; |
3246 | ||
c9f8735b | 3247 | return 1; |
dea3101e JB |
3248 | } |
3249 | switch (cmd) { | |
3250 | case ELS_CMD_FLOGI: | |
2e0fef85 | 3251 | lpfc_issue_els_flogi(vport, ndlp, cmdiocb->retry); |
c9f8735b | 3252 | return 1; |
92d7f7b0 JS |
3253 | case ELS_CMD_FDISC: |
3254 | lpfc_issue_els_fdisc(vport, ndlp, cmdiocb->retry); | |
3255 | return 1; | |
dea3101e | 3256 | case ELS_CMD_PLOGI: |
58da1ffb | 3257 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) { |
488d1469 | 3258 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 3259 | lpfc_nlp_set_state(vport, ndlp, |
de0c5b32 | 3260 | NLP_STE_PLOGI_ISSUE); |
488d1469 | 3261 | } |
2e0fef85 | 3262 | lpfc_issue_els_plogi(vport, did, cmdiocb->retry); |
c9f8735b | 3263 | return 1; |
dea3101e | 3264 | case ELS_CMD_ADISC: |
5024ab17 | 3265 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 JS |
3266 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); |
3267 | lpfc_issue_els_adisc(vport, ndlp, cmdiocb->retry); | |
c9f8735b | 3268 | return 1; |
dea3101e | 3269 | case ELS_CMD_PRLI: |
5024ab17 | 3270 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 JS |
3271 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); |
3272 | lpfc_issue_els_prli(vport, ndlp, cmdiocb->retry); | |
c9f8735b | 3273 | return 1; |
dea3101e | 3274 | case ELS_CMD_LOGO: |
5024ab17 | 3275 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 JS |
3276 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
3277 | lpfc_issue_els_logo(vport, ndlp, cmdiocb->retry); | |
c9f8735b | 3278 | return 1; |
dea3101e JB |
3279 | } |
3280 | } | |
dea3101e | 3281 | /* No retry ELS command <elsCmd> to remote NPORT <did> */ |
98c9ea5c JS |
3282 | if (logerr) { |
3283 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
3284 | "0137 No retry ELS command x%x to remote " | |
3285 | "NPORT x%x: Out of Resources: Error:x%x/%x\n", | |
3286 | cmd, did, irsp->ulpStatus, | |
3287 | irsp->un.ulpWord[4]); | |
3288 | } | |
3289 | else { | |
3290 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
a58cbd52 JS |
3291 | "0108 No retry ELS command x%x to remote " |
3292 | "NPORT x%x Retried:%d Error:x%x/%x\n", | |
3293 | cmd, did, cmdiocb->retry, irsp->ulpStatus, | |
3294 | irsp->un.ulpWord[4]); | |
98c9ea5c | 3295 | } |
c9f8735b | 3296 | return 0; |
dea3101e JB |
3297 | } |
3298 | ||
e59058c4 | 3299 | /** |
3621a710 | 3300 | * lpfc_els_free_data - Free lpfc dma buffer and data structure with an iocb |
e59058c4 JS |
3301 | * @phba: pointer to lpfc hba data structure. |
3302 | * @buf_ptr1: pointer to the lpfc DMA buffer data structure. | |
3303 | * | |
3304 | * This routine releases the lpfc DMA (Direct Memory Access) buffer(s) | |
3305 | * associated with a command IOCB back to the lpfc DMA buffer pool. It first | |
3306 | * checks to see whether there is a lpfc DMA buffer associated with the | |
3307 | * response of the command IOCB. If so, it will be released before releasing | |
3308 | * the lpfc DMA buffer associated with the IOCB itself. | |
3309 | * | |
3310 | * Return code | |
3311 | * 0 - Successfully released lpfc DMA buffer (currently, always return 0) | |
3312 | **/ | |
09372820 | 3313 | static int |
87af33fe JS |
3314 | lpfc_els_free_data(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr1) |
3315 | { | |
3316 | struct lpfc_dmabuf *buf_ptr; | |
3317 | ||
e59058c4 | 3318 | /* Free the response before processing the command. */ |
87af33fe JS |
3319 | if (!list_empty(&buf_ptr1->list)) { |
3320 | list_remove_head(&buf_ptr1->list, buf_ptr, | |
3321 | struct lpfc_dmabuf, | |
3322 | list); | |
3323 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); | |
3324 | kfree(buf_ptr); | |
3325 | } | |
3326 | lpfc_mbuf_free(phba, buf_ptr1->virt, buf_ptr1->phys); | |
3327 | kfree(buf_ptr1); | |
3328 | return 0; | |
3329 | } | |
3330 | ||
e59058c4 | 3331 | /** |
3621a710 | 3332 | * lpfc_els_free_bpl - Free lpfc dma buffer and data structure with bpl |
e59058c4 JS |
3333 | * @phba: pointer to lpfc hba data structure. |
3334 | * @buf_ptr: pointer to the lpfc dma buffer data structure. | |
3335 | * | |
3336 | * This routine releases the lpfc Direct Memory Access (DMA) buffer | |
3337 | * associated with a Buffer Pointer List (BPL) back to the lpfc DMA buffer | |
3338 | * pool. | |
3339 | * | |
3340 | * Return code | |
3341 | * 0 - Successfully released lpfc DMA buffer (currently, always return 0) | |
3342 | **/ | |
09372820 | 3343 | static int |
87af33fe JS |
3344 | lpfc_els_free_bpl(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr) |
3345 | { | |
3346 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); | |
3347 | kfree(buf_ptr); | |
3348 | return 0; | |
3349 | } | |
3350 | ||
e59058c4 | 3351 | /** |
3621a710 | 3352 | * lpfc_els_free_iocb - Free a command iocb and its associated resources |
e59058c4 JS |
3353 | * @phba: pointer to lpfc hba data structure. |
3354 | * @elsiocb: pointer to lpfc els command iocb data structure. | |
3355 | * | |
3356 | * This routine frees a command IOCB and its associated resources. The | |
3357 | * command IOCB data structure contains the reference to various associated | |
3358 | * resources, these fields must be set to NULL if the associated reference | |
3359 | * not present: | |
3360 | * context1 - reference to ndlp | |
3361 | * context2 - reference to cmd | |
3362 | * context2->next - reference to rsp | |
3363 | * context3 - reference to bpl | |
3364 | * | |
3365 | * It first properly decrements the reference count held on ndlp for the | |
3366 | * IOCB completion callback function. If LPFC_DELAY_MEM_FREE flag is not | |
3367 | * set, it invokes the lpfc_els_free_data() routine to release the Direct | |
3368 | * Memory Access (DMA) buffers associated with the IOCB. Otherwise, it | |
3369 | * adds the DMA buffer the @phba data structure for the delayed release. | |
3370 | * If reference to the Buffer Pointer List (BPL) is present, the | |
3371 | * lpfc_els_free_bpl() routine is invoked to release the DMA memory | |
3372 | * associated with BPL. Finally, the lpfc_sli_release_iocbq() routine is | |
3373 | * invoked to release the IOCB data structure back to @phba IOCBQ list. | |
3374 | * | |
3375 | * Return code | |
3376 | * 0 - Success (currently, always return 0) | |
3377 | **/ | |
dea3101e | 3378 | int |
329f9bc7 | 3379 | lpfc_els_free_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *elsiocb) |
dea3101e JB |
3380 | { |
3381 | struct lpfc_dmabuf *buf_ptr, *buf_ptr1; | |
a8adb832 JS |
3382 | struct lpfc_nodelist *ndlp; |
3383 | ||
3384 | ndlp = (struct lpfc_nodelist *)elsiocb->context1; | |
3385 | if (ndlp) { | |
3386 | if (ndlp->nlp_flag & NLP_DEFER_RM) { | |
3387 | lpfc_nlp_put(ndlp); | |
dea3101e | 3388 | |
a8adb832 JS |
3389 | /* If the ndlp is not being used by another discovery |
3390 | * thread, free it. | |
3391 | */ | |
3392 | if (!lpfc_nlp_not_used(ndlp)) { | |
3393 | /* If ndlp is being used by another discovery | |
3394 | * thread, just clear NLP_DEFER_RM | |
3395 | */ | |
3396 | ndlp->nlp_flag &= ~NLP_DEFER_RM; | |
3397 | } | |
3398 | } | |
3399 | else | |
3400 | lpfc_nlp_put(ndlp); | |
329f9bc7 JS |
3401 | elsiocb->context1 = NULL; |
3402 | } | |
dea3101e JB |
3403 | /* context2 = cmd, context2->next = rsp, context3 = bpl */ |
3404 | if (elsiocb->context2) { | |
0ff10d46 JS |
3405 | if (elsiocb->iocb_flag & LPFC_DELAY_MEM_FREE) { |
3406 | /* Firmware could still be in progress of DMAing | |
3407 | * payload, so don't free data buffer till after | |
3408 | * a hbeat. | |
3409 | */ | |
3410 | elsiocb->iocb_flag &= ~LPFC_DELAY_MEM_FREE; | |
3411 | buf_ptr = elsiocb->context2; | |
3412 | elsiocb->context2 = NULL; | |
3413 | if (buf_ptr) { | |
3414 | buf_ptr1 = NULL; | |
3415 | spin_lock_irq(&phba->hbalock); | |
3416 | if (!list_empty(&buf_ptr->list)) { | |
3417 | list_remove_head(&buf_ptr->list, | |
3418 | buf_ptr1, struct lpfc_dmabuf, | |
3419 | list); | |
3420 | INIT_LIST_HEAD(&buf_ptr1->list); | |
3421 | list_add_tail(&buf_ptr1->list, | |
3422 | &phba->elsbuf); | |
3423 | phba->elsbuf_cnt++; | |
3424 | } | |
3425 | INIT_LIST_HEAD(&buf_ptr->list); | |
3426 | list_add_tail(&buf_ptr->list, &phba->elsbuf); | |
3427 | phba->elsbuf_cnt++; | |
3428 | spin_unlock_irq(&phba->hbalock); | |
3429 | } | |
3430 | } else { | |
3431 | buf_ptr1 = (struct lpfc_dmabuf *) elsiocb->context2; | |
3432 | lpfc_els_free_data(phba, buf_ptr1); | |
3433 | } | |
dea3101e JB |
3434 | } |
3435 | ||
3436 | if (elsiocb->context3) { | |
3437 | buf_ptr = (struct lpfc_dmabuf *) elsiocb->context3; | |
87af33fe | 3438 | lpfc_els_free_bpl(phba, buf_ptr); |
dea3101e | 3439 | } |
604a3e30 | 3440 | lpfc_sli_release_iocbq(phba, elsiocb); |
dea3101e JB |
3441 | return 0; |
3442 | } | |
3443 | ||
e59058c4 | 3444 | /** |
3621a710 | 3445 | * lpfc_cmpl_els_logo_acc - Completion callback function to logo acc response |
e59058c4 JS |
3446 | * @phba: pointer to lpfc hba data structure. |
3447 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
3448 | * @rspiocb: pointer to lpfc response iocb data structure. | |
3449 | * | |
3450 | * This routine is the completion callback function to the Logout (LOGO) | |
3451 | * Accept (ACC) Response ELS command. This routine is invoked to indicate | |
3452 | * the completion of the LOGO process. It invokes the lpfc_nlp_not_used() to | |
3453 | * release the ndlp if it has the last reference remaining (reference count | |
3454 | * is 1). If succeeded (meaning ndlp released), it sets the IOCB context1 | |
3455 | * field to NULL to inform the following lpfc_els_free_iocb() routine no | |
3456 | * ndlp reference count needs to be decremented. Otherwise, the ndlp | |
3457 | * reference use-count shall be decremented by the lpfc_els_free_iocb() | |
3458 | * routine. Finally, the lpfc_els_free_iocb() is invoked to release the | |
3459 | * IOCB data structure. | |
3460 | **/ | |
dea3101e | 3461 | static void |
2e0fef85 JS |
3462 | lpfc_cmpl_els_logo_acc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
3463 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 3464 | { |
2e0fef85 JS |
3465 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; |
3466 | struct lpfc_vport *vport = cmdiocb->vport; | |
858c9f6c JS |
3467 | IOCB_t *irsp; |
3468 | ||
3469 | irsp = &rspiocb->iocb; | |
3470 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
3471 | "ACC LOGO cmpl: status:x%x/x%x did:x%x", | |
3472 | irsp->ulpStatus, irsp->un.ulpWord[4], ndlp->nlp_DID); | |
dea3101e | 3473 | /* ACC to LOGO completes to NPort <nlp_DID> */ |
e8b62011 JS |
3474 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3475 | "0109 ACC to LOGO completes to NPort x%x " | |
3476 | "Data: x%x x%x x%x\n", | |
3477 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3478 | ndlp->nlp_rpi); | |
87af33fe JS |
3479 | |
3480 | if (ndlp->nlp_state == NLP_STE_NPR_NODE) { | |
3481 | /* NPort Recovery mode or node is just allocated */ | |
3482 | if (!lpfc_nlp_not_used(ndlp)) { | |
3483 | /* If the ndlp is being used by another discovery | |
3484 | * thread, just unregister the RPI. | |
3485 | */ | |
3486 | lpfc_unreg_rpi(vport, ndlp); | |
fa4066b6 JS |
3487 | } else { |
3488 | /* Indicate the node has already released, should | |
3489 | * not reference to it from within lpfc_els_free_iocb. | |
3490 | */ | |
3491 | cmdiocb->context1 = NULL; | |
87af33fe | 3492 | } |
dea3101e | 3493 | } |
73d91e50 JS |
3494 | |
3495 | /* | |
3496 | * The driver received a LOGO from the rport and has ACK'd it. | |
df9e1b59 | 3497 | * At this point, the driver is done so release the IOCB |
73d91e50 | 3498 | */ |
dea3101e | 3499 | lpfc_els_free_iocb(phba, cmdiocb); |
df9e1b59 JS |
3500 | |
3501 | /* | |
3502 | * Remove the ndlp reference if it's a fabric node that has | |
3503 | * sent us an unsolicted LOGO. | |
3504 | */ | |
3505 | if (ndlp->nlp_type & NLP_FABRIC) | |
3506 | lpfc_nlp_put(ndlp); | |
3507 | ||
dea3101e JB |
3508 | return; |
3509 | } | |
3510 | ||
e59058c4 | 3511 | /** |
3621a710 | 3512 | * lpfc_mbx_cmpl_dflt_rpi - Completion callbk func for unreg dflt rpi mbox cmd |
e59058c4 JS |
3513 | * @phba: pointer to lpfc hba data structure. |
3514 | * @pmb: pointer to the driver internal queue element for mailbox command. | |
3515 | * | |
3516 | * This routine is the completion callback function for unregister default | |
3517 | * RPI (Remote Port Index) mailbox command to the @phba. It simply releases | |
3518 | * the associated lpfc Direct Memory Access (DMA) buffer back to the pool and | |
3519 | * decrements the ndlp reference count held for this completion callback | |
3520 | * function. After that, it invokes the lpfc_nlp_not_used() to check | |
3521 | * whether there is only one reference left on the ndlp. If so, it will | |
3522 | * perform one more decrement and trigger the release of the ndlp. | |
3523 | **/ | |
858c9f6c JS |
3524 | void |
3525 | lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) | |
3526 | { | |
3527 | struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); | |
3528 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; | |
3529 | ||
3530 | pmb->context1 = NULL; | |
d439d286 JS |
3531 | pmb->context2 = NULL; |
3532 | ||
858c9f6c JS |
3533 | lpfc_mbuf_free(phba, mp->virt, mp->phys); |
3534 | kfree(mp); | |
3535 | mempool_free(pmb, phba->mbox_mem_pool); | |
58da1ffb | 3536 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) { |
a8adb832 | 3537 | lpfc_nlp_put(ndlp); |
a8adb832 JS |
3538 | /* This is the end of the default RPI cleanup logic for this |
3539 | * ndlp. If no other discovery threads are using this ndlp. | |
3540 | * we should free all resources associated with it. | |
3541 | */ | |
3542 | lpfc_nlp_not_used(ndlp); | |
3543 | } | |
3772a991 | 3544 | |
858c9f6c JS |
3545 | return; |
3546 | } | |
3547 | ||
e59058c4 | 3548 | /** |
3621a710 | 3549 | * lpfc_cmpl_els_rsp - Completion callback function for els response iocb cmd |
e59058c4 JS |
3550 | * @phba: pointer to lpfc hba data structure. |
3551 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
3552 | * @rspiocb: pointer to lpfc response iocb data structure. | |
3553 | * | |
3554 | * This routine is the completion callback function for ELS Response IOCB | |
3555 | * command. In normal case, this callback function just properly sets the | |
3556 | * nlp_flag bitmap in the ndlp data structure, if the mbox command reference | |
3557 | * field in the command IOCB is not NULL, the referred mailbox command will | |
3558 | * be send out, and then invokes the lpfc_els_free_iocb() routine to release | |
3559 | * the IOCB. Under error conditions, such as when a LS_RJT is returned or a | |
3560 | * link down event occurred during the discovery, the lpfc_nlp_not_used() | |
3561 | * routine shall be invoked trying to release the ndlp if no other threads | |
3562 | * are currently referring it. | |
3563 | **/ | |
dea3101e | 3564 | static void |
858c9f6c | 3565 | lpfc_cmpl_els_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
329f9bc7 | 3566 | struct lpfc_iocbq *rspiocb) |
dea3101e | 3567 | { |
2e0fef85 JS |
3568 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; |
3569 | struct lpfc_vport *vport = ndlp ? ndlp->vport : NULL; | |
3570 | struct Scsi_Host *shost = vport ? lpfc_shost_from_vport(vport) : NULL; | |
87af33fe JS |
3571 | IOCB_t *irsp; |
3572 | uint8_t *pcmd; | |
dea3101e | 3573 | LPFC_MBOXQ_t *mbox = NULL; |
2e0fef85 | 3574 | struct lpfc_dmabuf *mp = NULL; |
87af33fe | 3575 | uint32_t ls_rjt = 0; |
dea3101e | 3576 | |
33ccf8d1 JS |
3577 | irsp = &rspiocb->iocb; |
3578 | ||
dea3101e JB |
3579 | if (cmdiocb->context_un.mbox) |
3580 | mbox = cmdiocb->context_un.mbox; | |
3581 | ||
fa4066b6 JS |
3582 | /* First determine if this is a LS_RJT cmpl. Note, this callback |
3583 | * function can have cmdiocb->contest1 (ndlp) field set to NULL. | |
3584 | */ | |
87af33fe | 3585 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt); |
58da1ffb JS |
3586 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && |
3587 | (*((uint32_t *) (pcmd)) == ELS_CMD_LS_RJT)) { | |
fa4066b6 | 3588 | /* A LS_RJT associated with Default RPI cleanup has its own |
3ad2f3fb | 3589 | * separate code path. |
87af33fe JS |
3590 | */ |
3591 | if (!(ndlp->nlp_flag & NLP_RM_DFLT_RPI)) | |
3592 | ls_rjt = 1; | |
3593 | } | |
3594 | ||
dea3101e | 3595 | /* Check to see if link went down during discovery */ |
58da1ffb | 3596 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || lpfc_els_chk_latt(vport)) { |
dea3101e | 3597 | if (mbox) { |
14691150 JS |
3598 | mp = (struct lpfc_dmabuf *) mbox->context1; |
3599 | if (mp) { | |
3600 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
3601 | kfree(mp); | |
3602 | } | |
329f9bc7 | 3603 | mempool_free(mbox, phba->mbox_mem_pool); |
dea3101e | 3604 | } |
58da1ffb JS |
3605 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && |
3606 | (ndlp->nlp_flag & NLP_RM_DFLT_RPI)) | |
fa4066b6 | 3607 | if (lpfc_nlp_not_used(ndlp)) { |
98c9ea5c | 3608 | ndlp = NULL; |
fa4066b6 JS |
3609 | /* Indicate the node has already released, |
3610 | * should not reference to it from within | |
3611 | * the routine lpfc_els_free_iocb. | |
3612 | */ | |
3613 | cmdiocb->context1 = NULL; | |
3614 | } | |
dea3101e JB |
3615 | goto out; |
3616 | } | |
3617 | ||
858c9f6c | 3618 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
51ef4c26 | 3619 | "ELS rsp cmpl: status:x%x/x%x did:x%x", |
858c9f6c | 3620 | irsp->ulpStatus, irsp->un.ulpWord[4], |
51ef4c26 | 3621 | cmdiocb->iocb.un.elsreq64.remoteID); |
dea3101e | 3622 | /* ELS response tag <ulpIoTag> completes */ |
e8b62011 JS |
3623 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3624 | "0110 ELS response tag x%x completes " | |
3625 | "Data: x%x x%x x%x x%x x%x x%x x%x\n", | |
3626 | cmdiocb->iocb.ulpIoTag, rspiocb->iocb.ulpStatus, | |
3627 | rspiocb->iocb.un.ulpWord[4], rspiocb->iocb.ulpTimeout, | |
3628 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3629 | ndlp->nlp_rpi); | |
dea3101e JB |
3630 | if (mbox) { |
3631 | if ((rspiocb->iocb.ulpStatus == 0) | |
3632 | && (ndlp->nlp_flag & NLP_ACC_REGLOGIN)) { | |
2e0fef85 | 3633 | lpfc_unreg_rpi(vport, ndlp); |
e47c9093 JS |
3634 | /* Increment reference count to ndlp to hold the |
3635 | * reference to ndlp for the callback function. | |
3636 | */ | |
329f9bc7 | 3637 | mbox->context2 = lpfc_nlp_get(ndlp); |
2e0fef85 | 3638 | mbox->vport = vport; |
858c9f6c JS |
3639 | if (ndlp->nlp_flag & NLP_RM_DFLT_RPI) { |
3640 | mbox->mbox_flag |= LPFC_MBX_IMED_UNREG; | |
3641 | mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi; | |
3642 | } | |
3643 | else { | |
3644 | mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; | |
3645 | ndlp->nlp_prev_state = ndlp->nlp_state; | |
3646 | lpfc_nlp_set_state(vport, ndlp, | |
2e0fef85 | 3647 | NLP_STE_REG_LOGIN_ISSUE); |
858c9f6c | 3648 | } |
0b727fea | 3649 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) |
e47c9093 | 3650 | != MBX_NOT_FINISHED) |
dea3101e | 3651 | goto out; |
e47c9093 JS |
3652 | else |
3653 | /* Decrement the ndlp reference count we | |
3654 | * set for this failed mailbox command. | |
3655 | */ | |
3656 | lpfc_nlp_put(ndlp); | |
98c9ea5c JS |
3657 | |
3658 | /* ELS rsp: Cannot issue reg_login for <NPortid> */ | |
3659 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
3660 | "0138 ELS rsp: Cannot issue reg_login for x%x " | |
3661 | "Data: x%x x%x x%x\n", | |
3662 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3663 | ndlp->nlp_rpi); | |
3664 | ||
fa4066b6 | 3665 | if (lpfc_nlp_not_used(ndlp)) { |
98c9ea5c | 3666 | ndlp = NULL; |
fa4066b6 JS |
3667 | /* Indicate node has already been released, |
3668 | * should not reference to it from within | |
3669 | * the routine lpfc_els_free_iocb. | |
3670 | */ | |
3671 | cmdiocb->context1 = NULL; | |
3672 | } | |
dea3101e | 3673 | } else { |
858c9f6c JS |
3674 | /* Do not drop node for lpfc_els_abort'ed ELS cmds */ |
3675 | if (!lpfc_error_lost_link(irsp) && | |
3676 | ndlp->nlp_flag & NLP_ACC_REGLOGIN) { | |
fa4066b6 | 3677 | if (lpfc_nlp_not_used(ndlp)) { |
98c9ea5c | 3678 | ndlp = NULL; |
fa4066b6 JS |
3679 | /* Indicate node has already been |
3680 | * released, should not reference | |
3681 | * to it from within the routine | |
3682 | * lpfc_els_free_iocb. | |
3683 | */ | |
3684 | cmdiocb->context1 = NULL; | |
3685 | } | |
dea3101e JB |
3686 | } |
3687 | } | |
14691150 JS |
3688 | mp = (struct lpfc_dmabuf *) mbox->context1; |
3689 | if (mp) { | |
3690 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
3691 | kfree(mp); | |
3692 | } | |
3693 | mempool_free(mbox, phba->mbox_mem_pool); | |
dea3101e JB |
3694 | } |
3695 | out: | |
58da1ffb | 3696 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) { |
2e0fef85 | 3697 | spin_lock_irq(shost->host_lock); |
858c9f6c | 3698 | ndlp->nlp_flag &= ~(NLP_ACC_REGLOGIN | NLP_RM_DFLT_RPI); |
2e0fef85 | 3699 | spin_unlock_irq(shost->host_lock); |
87af33fe JS |
3700 | |
3701 | /* If the node is not being used by another discovery thread, | |
3702 | * and we are sending a reject, we are done with it. | |
3703 | * Release driver reference count here and free associated | |
3704 | * resources. | |
3705 | */ | |
3706 | if (ls_rjt) | |
fa4066b6 JS |
3707 | if (lpfc_nlp_not_used(ndlp)) |
3708 | /* Indicate node has already been released, | |
3709 | * should not reference to it from within | |
3710 | * the routine lpfc_els_free_iocb. | |
3711 | */ | |
3712 | cmdiocb->context1 = NULL; | |
dea3101e | 3713 | } |
87af33fe | 3714 | |
dea3101e JB |
3715 | lpfc_els_free_iocb(phba, cmdiocb); |
3716 | return; | |
3717 | } | |
3718 | ||
e59058c4 | 3719 | /** |
3621a710 | 3720 | * lpfc_els_rsp_acc - Prepare and issue an acc response iocb command |
e59058c4 JS |
3721 | * @vport: pointer to a host virtual N_Port data structure. |
3722 | * @flag: the els command code to be accepted. | |
3723 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3724 | * @ndlp: pointer to a node-list data structure. | |
3725 | * @mbox: pointer to the driver internal queue element for mailbox command. | |
3726 | * | |
3727 | * This routine prepares and issues an Accept (ACC) response IOCB | |
3728 | * command. It uses the @flag to properly set up the IOCB field for the | |
3729 | * specific ACC response command to be issued and invokes the | |
3730 | * lpfc_sli_issue_iocb() routine to send out ACC response IOCB. If a | |
3731 | * @mbox pointer is passed in, it will be put into the context_un.mbox | |
3732 | * field of the IOCB for the completion callback function to issue the | |
3733 | * mailbox command to the HBA later when callback is invoked. | |
3734 | * | |
3735 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
3736 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
3737 | * will be stored into the context1 field of the IOCB for the completion | |
3738 | * callback function to the corresponding response ELS IOCB command. | |
3739 | * | |
3740 | * Return code | |
3741 | * 0 - Successfully issued acc response | |
3742 | * 1 - Failed to issue acc response | |
3743 | **/ | |
dea3101e | 3744 | int |
2e0fef85 JS |
3745 | lpfc_els_rsp_acc(struct lpfc_vport *vport, uint32_t flag, |
3746 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp, | |
51ef4c26 | 3747 | LPFC_MBOXQ_t *mbox) |
dea3101e | 3748 | { |
2e0fef85 JS |
3749 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
3750 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
3751 | IOCB_t *icmd; |
3752 | IOCB_t *oldcmd; | |
3753 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
3754 | struct lpfc_sli *psli; |
3755 | uint8_t *pcmd; | |
3756 | uint16_t cmdsize; | |
3757 | int rc; | |
82d9a2a2 | 3758 | ELS_PKT *els_pkt_ptr; |
dea3101e JB |
3759 | |
3760 | psli = &phba->sli; | |
dea3101e JB |
3761 | oldcmd = &oldiocb->iocb; |
3762 | ||
3763 | switch (flag) { | |
3764 | case ELS_CMD_ACC: | |
92d7f7b0 | 3765 | cmdsize = sizeof(uint32_t); |
2e0fef85 JS |
3766 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, |
3767 | ndlp, ndlp->nlp_DID, ELS_CMD_ACC); | |
488d1469 | 3768 | if (!elsiocb) { |
2e0fef85 | 3769 | spin_lock_irq(shost->host_lock); |
5024ab17 | 3770 | ndlp->nlp_flag &= ~NLP_LOGO_ACC; |
2e0fef85 | 3771 | spin_unlock_irq(shost->host_lock); |
c9f8735b | 3772 | return 1; |
dea3101e | 3773 | } |
2e0fef85 | 3774 | |
dea3101e | 3775 | icmd = &elsiocb->iocb; |
7851fe2c JS |
3776 | icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ |
3777 | icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id; | |
dea3101e JB |
3778 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
3779 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 | 3780 | pcmd += sizeof(uint32_t); |
858c9f6c JS |
3781 | |
3782 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
3783 | "Issue ACC: did:x%x flg:x%x", | |
3784 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
dea3101e JB |
3785 | break; |
3786 | case ELS_CMD_PLOGI: | |
92d7f7b0 | 3787 | cmdsize = (sizeof(struct serv_parm) + sizeof(uint32_t)); |
2e0fef85 JS |
3788 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, |
3789 | ndlp, ndlp->nlp_DID, ELS_CMD_ACC); | |
488d1469 | 3790 | if (!elsiocb) |
c9f8735b | 3791 | return 1; |
488d1469 | 3792 | |
dea3101e | 3793 | icmd = &elsiocb->iocb; |
7851fe2c JS |
3794 | icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ |
3795 | icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id; | |
dea3101e JB |
3796 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
3797 | ||
3798 | if (mbox) | |
3799 | elsiocb->context_un.mbox = mbox; | |
3800 | ||
3801 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 JS |
3802 | pcmd += sizeof(uint32_t); |
3803 | memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); | |
858c9f6c JS |
3804 | |
3805 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
3806 | "Issue ACC PLOGI: did:x%x flg:x%x", | |
3807 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
dea3101e | 3808 | break; |
82d9a2a2 | 3809 | case ELS_CMD_PRLO: |
92d7f7b0 | 3810 | cmdsize = sizeof(uint32_t) + sizeof(PRLO); |
2e0fef85 | 3811 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, |
82d9a2a2 JS |
3812 | ndlp, ndlp->nlp_DID, ELS_CMD_PRLO); |
3813 | if (!elsiocb) | |
3814 | return 1; | |
3815 | ||
3816 | icmd = &elsiocb->iocb; | |
7851fe2c JS |
3817 | icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ |
3818 | icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id; | |
82d9a2a2 JS |
3819 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
3820 | ||
3821 | memcpy(pcmd, ((struct lpfc_dmabuf *) oldiocb->context2)->virt, | |
92d7f7b0 | 3822 | sizeof(uint32_t) + sizeof(PRLO)); |
82d9a2a2 JS |
3823 | *((uint32_t *) (pcmd)) = ELS_CMD_PRLO_ACC; |
3824 | els_pkt_ptr = (ELS_PKT *) pcmd; | |
3825 | els_pkt_ptr->un.prlo.acceptRspCode = PRLO_REQ_EXECUTED; | |
858c9f6c JS |
3826 | |
3827 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
3828 | "Issue ACC PRLO: did:x%x flg:x%x", | |
3829 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
82d9a2a2 | 3830 | break; |
dea3101e | 3831 | default: |
c9f8735b | 3832 | return 1; |
dea3101e | 3833 | } |
dea3101e | 3834 | /* Xmit ELS ACC response tag <ulpIoTag> */ |
e8b62011 JS |
3835 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3836 | "0128 Xmit ELS ACC response tag x%x, XRI: x%x, " | |
e6446439 JS |
3837 | "DID: x%x, nlp_flag: x%x nlp_state: x%x RPI: x%x " |
3838 | "fc_flag x%x\n", | |
e8b62011 JS |
3839 | elsiocb->iotag, elsiocb->iocb.ulpContext, |
3840 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
e6446439 | 3841 | ndlp->nlp_rpi, vport->fc_flag); |
dea3101e | 3842 | if (ndlp->nlp_flag & NLP_LOGO_ACC) { |
2e0fef85 | 3843 | spin_lock_irq(shost->host_lock); |
c9f8735b | 3844 | ndlp->nlp_flag &= ~NLP_LOGO_ACC; |
2e0fef85 | 3845 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
3846 | elsiocb->iocb_cmpl = lpfc_cmpl_els_logo_acc; |
3847 | } else { | |
858c9f6c | 3848 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
dea3101e JB |
3849 | } |
3850 | ||
3851 | phba->fc_stat.elsXmitACC++; | |
3772a991 | 3852 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
dea3101e JB |
3853 | if (rc == IOCB_ERROR) { |
3854 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 3855 | return 1; |
dea3101e | 3856 | } |
c9f8735b | 3857 | return 0; |
dea3101e JB |
3858 | } |
3859 | ||
e59058c4 | 3860 | /** |
3621a710 | 3861 | * lpfc_els_rsp_reject - Propare and issue a rjt response iocb command |
e59058c4 JS |
3862 | * @vport: pointer to a virtual N_Port data structure. |
3863 | * @rejectError: | |
3864 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3865 | * @ndlp: pointer to a node-list data structure. | |
3866 | * @mbox: pointer to the driver internal queue element for mailbox command. | |
3867 | * | |
3868 | * This routine prepares and issue an Reject (RJT) response IOCB | |
3869 | * command. If a @mbox pointer is passed in, it will be put into the | |
3870 | * context_un.mbox field of the IOCB for the completion callback function | |
3871 | * to issue to the HBA later. | |
3872 | * | |
3873 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
3874 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
3875 | * will be stored into the context1 field of the IOCB for the completion | |
3876 | * callback function to the reject response ELS IOCB command. | |
3877 | * | |
3878 | * Return code | |
3879 | * 0 - Successfully issued reject response | |
3880 | * 1 - Failed to issue reject response | |
3881 | **/ | |
dea3101e | 3882 | int |
2e0fef85 | 3883 | lpfc_els_rsp_reject(struct lpfc_vport *vport, uint32_t rejectError, |
858c9f6c JS |
3884 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp, |
3885 | LPFC_MBOXQ_t *mbox) | |
dea3101e | 3886 | { |
2e0fef85 | 3887 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
3888 | IOCB_t *icmd; |
3889 | IOCB_t *oldcmd; | |
3890 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
3891 | struct lpfc_sli *psli; |
3892 | uint8_t *pcmd; | |
3893 | uint16_t cmdsize; | |
3894 | int rc; | |
3895 | ||
3896 | psli = &phba->sli; | |
92d7f7b0 | 3897 | cmdsize = 2 * sizeof(uint32_t); |
2e0fef85 JS |
3898 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
3899 | ndlp->nlp_DID, ELS_CMD_LS_RJT); | |
488d1469 | 3900 | if (!elsiocb) |
c9f8735b | 3901 | return 1; |
dea3101e JB |
3902 | |
3903 | icmd = &elsiocb->iocb; | |
3904 | oldcmd = &oldiocb->iocb; | |
7851fe2c JS |
3905 | icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ |
3906 | icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id; | |
dea3101e JB |
3907 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
3908 | ||
3909 | *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT; | |
92d7f7b0 | 3910 | pcmd += sizeof(uint32_t); |
dea3101e JB |
3911 | *((uint32_t *) (pcmd)) = rejectError; |
3912 | ||
51ef4c26 | 3913 | if (mbox) |
858c9f6c | 3914 | elsiocb->context_un.mbox = mbox; |
858c9f6c | 3915 | |
dea3101e | 3916 | /* Xmit ELS RJT <err> response tag <ulpIoTag> */ |
e8b62011 JS |
3917 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3918 | "0129 Xmit ELS RJT x%x response tag x%x " | |
3919 | "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, " | |
3920 | "rpi x%x\n", | |
3921 | rejectError, elsiocb->iotag, | |
3922 | elsiocb->iocb.ulpContext, ndlp->nlp_DID, | |
3923 | ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi); | |
858c9f6c JS |
3924 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
3925 | "Issue LS_RJT: did:x%x flg:x%x err:x%x", | |
3926 | ndlp->nlp_DID, ndlp->nlp_flag, rejectError); | |
3927 | ||
dea3101e | 3928 | phba->fc_stat.elsXmitLSRJT++; |
858c9f6c | 3929 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
3772a991 | 3930 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
51ef4c26 | 3931 | |
dea3101e JB |
3932 | if (rc == IOCB_ERROR) { |
3933 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 3934 | return 1; |
dea3101e | 3935 | } |
c9f8735b | 3936 | return 0; |
dea3101e JB |
3937 | } |
3938 | ||
e59058c4 | 3939 | /** |
3621a710 | 3940 | * lpfc_els_rsp_adisc_acc - Prepare and issue acc response to adisc iocb cmd |
e59058c4 JS |
3941 | * @vport: pointer to a virtual N_Port data structure. |
3942 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3943 | * @ndlp: pointer to a node-list data structure. | |
3944 | * | |
3945 | * This routine prepares and issues an Accept (ACC) response to Address | |
3946 | * Discover (ADISC) ELS command. It simply prepares the payload of the IOCB | |
3947 | * and invokes the lpfc_sli_issue_iocb() routine to send out the command. | |
3948 | * | |
3949 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
3950 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
3951 | * will be stored into the context1 field of the IOCB for the completion | |
3952 | * callback function to the ADISC Accept response ELS IOCB command. | |
3953 | * | |
3954 | * Return code | |
3955 | * 0 - Successfully issued acc adisc response | |
3956 | * 1 - Failed to issue adisc acc response | |
3957 | **/ | |
dea3101e | 3958 | int |
2e0fef85 JS |
3959 | lpfc_els_rsp_adisc_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb, |
3960 | struct lpfc_nodelist *ndlp) | |
dea3101e | 3961 | { |
2e0fef85 | 3962 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 3963 | ADISC *ap; |
2e0fef85 | 3964 | IOCB_t *icmd, *oldcmd; |
dea3101e | 3965 | struct lpfc_iocbq *elsiocb; |
dea3101e JB |
3966 | uint8_t *pcmd; |
3967 | uint16_t cmdsize; | |
3968 | int rc; | |
3969 | ||
92d7f7b0 | 3970 | cmdsize = sizeof(uint32_t) + sizeof(ADISC); |
2e0fef85 JS |
3971 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
3972 | ndlp->nlp_DID, ELS_CMD_ACC); | |
488d1469 | 3973 | if (!elsiocb) |
c9f8735b | 3974 | return 1; |
dea3101e | 3975 | |
5b8bd0c9 JS |
3976 | icmd = &elsiocb->iocb; |
3977 | oldcmd = &oldiocb->iocb; | |
7851fe2c JS |
3978 | icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ |
3979 | icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id; | |
5b8bd0c9 | 3980 | |
dea3101e | 3981 | /* Xmit ADISC ACC response tag <ulpIoTag> */ |
e8b62011 JS |
3982 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3983 | "0130 Xmit ADISC ACC response iotag x%x xri: " | |
3984 | "x%x, did x%x, nlp_flag x%x, nlp_state x%x rpi x%x\n", | |
3985 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
3986 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3987 | ndlp->nlp_rpi); | |
dea3101e JB |
3988 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
3989 | ||
3990 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 | 3991 | pcmd += sizeof(uint32_t); |
dea3101e JB |
3992 | |
3993 | ap = (ADISC *) (pcmd); | |
3994 | ap->hardAL_PA = phba->fc_pref_ALPA; | |
92d7f7b0 JS |
3995 | memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name)); |
3996 | memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
2e0fef85 | 3997 | ap->DID = be32_to_cpu(vport->fc_myDID); |
dea3101e | 3998 | |
858c9f6c JS |
3999 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
4000 | "Issue ACC ADISC: did:x%x flg:x%x", | |
4001 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
4002 | ||
dea3101e | 4003 | phba->fc_stat.elsXmitACC++; |
858c9f6c | 4004 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
3772a991 | 4005 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
dea3101e JB |
4006 | if (rc == IOCB_ERROR) { |
4007 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 4008 | return 1; |
dea3101e | 4009 | } |
c9f8735b | 4010 | return 0; |
dea3101e JB |
4011 | } |
4012 | ||
e59058c4 | 4013 | /** |
3621a710 | 4014 | * lpfc_els_rsp_prli_acc - Prepare and issue acc response to prli iocb cmd |
e59058c4 JS |
4015 | * @vport: pointer to a virtual N_Port data structure. |
4016 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
4017 | * @ndlp: pointer to a node-list data structure. | |
4018 | * | |
4019 | * This routine prepares and issues an Accept (ACC) response to Process | |
4020 | * Login (PRLI) ELS command. It simply prepares the payload of the IOCB | |
4021 | * and invokes the lpfc_sli_issue_iocb() routine to send out the command. | |
4022 | * | |
4023 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
4024 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
4025 | * will be stored into the context1 field of the IOCB for the completion | |
4026 | * callback function to the PRLI Accept response ELS IOCB command. | |
4027 | * | |
4028 | * Return code | |
4029 | * 0 - Successfully issued acc prli response | |
4030 | * 1 - Failed to issue acc prli response | |
4031 | **/ | |
dea3101e | 4032 | int |
2e0fef85 | 4033 | lpfc_els_rsp_prli_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb, |
5b8bd0c9 | 4034 | struct lpfc_nodelist *ndlp) |
dea3101e | 4035 | { |
2e0fef85 | 4036 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
4037 | PRLI *npr; |
4038 | lpfc_vpd_t *vpd; | |
4039 | IOCB_t *icmd; | |
4040 | IOCB_t *oldcmd; | |
4041 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
4042 | struct lpfc_sli *psli; |
4043 | uint8_t *pcmd; | |
4044 | uint16_t cmdsize; | |
4045 | int rc; | |
4046 | ||
4047 | psli = &phba->sli; | |
dea3101e | 4048 | |
92d7f7b0 | 4049 | cmdsize = sizeof(uint32_t) + sizeof(PRLI); |
2e0fef85 | 4050 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
92d7f7b0 | 4051 | ndlp->nlp_DID, (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK))); |
c9f8735b JW |
4052 | if (!elsiocb) |
4053 | return 1; | |
dea3101e | 4054 | |
5b8bd0c9 JS |
4055 | icmd = &elsiocb->iocb; |
4056 | oldcmd = &oldiocb->iocb; | |
7851fe2c JS |
4057 | icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ |
4058 | icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id; | |
4059 | ||
dea3101e | 4060 | /* Xmit PRLI ACC response tag <ulpIoTag> */ |
e8b62011 JS |
4061 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
4062 | "0131 Xmit PRLI ACC response tag x%x xri x%x, " | |
4063 | "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n", | |
4064 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
4065 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
4066 | ndlp->nlp_rpi); | |
dea3101e JB |
4067 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
4068 | ||
4069 | *((uint32_t *) (pcmd)) = (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK)); | |
92d7f7b0 | 4070 | pcmd += sizeof(uint32_t); |
dea3101e JB |
4071 | |
4072 | /* For PRLI, remainder of payload is PRLI parameter page */ | |
92d7f7b0 | 4073 | memset(pcmd, 0, sizeof(PRLI)); |
dea3101e JB |
4074 | |
4075 | npr = (PRLI *) pcmd; | |
4076 | vpd = &phba->vpd; | |
4077 | /* | |
0d2b6b83 JS |
4078 | * If the remote port is a target and our firmware version is 3.20 or |
4079 | * later, set the following bits for FC-TAPE support. | |
dea3101e | 4080 | */ |
0d2b6b83 JS |
4081 | if ((ndlp->nlp_type & NLP_FCP_TARGET) && |
4082 | (vpd->rev.feaLevelHigh >= 0x02)) { | |
dea3101e JB |
4083 | npr->ConfmComplAllowed = 1; |
4084 | npr->Retry = 1; | |
4085 | npr->TaskRetryIdReq = 1; | |
4086 | } | |
4087 | ||
4088 | npr->acceptRspCode = PRLI_REQ_EXECUTED; | |
4089 | npr->estabImagePair = 1; | |
4090 | npr->readXferRdyDis = 1; | |
4091 | npr->ConfmComplAllowed = 1; | |
4092 | ||
4093 | npr->prliType = PRLI_FCP_TYPE; | |
4094 | npr->initiatorFunc = 1; | |
4095 | ||
858c9f6c JS |
4096 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
4097 | "Issue ACC PRLI: did:x%x flg:x%x", | |
4098 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
4099 | ||
dea3101e | 4100 | phba->fc_stat.elsXmitACC++; |
858c9f6c | 4101 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
dea3101e | 4102 | |
3772a991 | 4103 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
dea3101e JB |
4104 | if (rc == IOCB_ERROR) { |
4105 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 4106 | return 1; |
dea3101e | 4107 | } |
c9f8735b | 4108 | return 0; |
dea3101e JB |
4109 | } |
4110 | ||
e59058c4 | 4111 | /** |
3621a710 | 4112 | * lpfc_els_rsp_rnid_acc - Issue rnid acc response iocb command |
e59058c4 JS |
4113 | * @vport: pointer to a virtual N_Port data structure. |
4114 | * @format: rnid command format. | |
4115 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
4116 | * @ndlp: pointer to a node-list data structure. | |
4117 | * | |
4118 | * This routine issues a Request Node Identification Data (RNID) Accept | |
4119 | * (ACC) response. It constructs the RNID ACC response command according to | |
4120 | * the proper @format and then calls the lpfc_sli_issue_iocb() routine to | |
4121 | * issue the response. Note that this command does not need to hold the ndlp | |
4122 | * reference count for the callback. So, the ndlp reference count taken by | |
4123 | * the lpfc_prep_els_iocb() routine is put back and the context1 field of | |
4124 | * IOCB is set to NULL to indicate to the lpfc_els_free_iocb() routine that | |
4125 | * there is no ndlp reference available. | |
4126 | * | |
4127 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
4128 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
4129 | * will be stored into the context1 field of the IOCB for the completion | |
4130 | * callback function. However, for the RNID Accept Response ELS command, | |
4131 | * this is undone later by this routine after the IOCB is allocated. | |
4132 | * | |
4133 | * Return code | |
4134 | * 0 - Successfully issued acc rnid response | |
4135 | * 1 - Failed to issue acc rnid response | |
4136 | **/ | |
dea3101e | 4137 | static int |
2e0fef85 | 4138 | lpfc_els_rsp_rnid_acc(struct lpfc_vport *vport, uint8_t format, |
329f9bc7 | 4139 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) |
dea3101e | 4140 | { |
2e0fef85 | 4141 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 4142 | RNID *rn; |
2e0fef85 | 4143 | IOCB_t *icmd, *oldcmd; |
dea3101e | 4144 | struct lpfc_iocbq *elsiocb; |
dea3101e JB |
4145 | struct lpfc_sli *psli; |
4146 | uint8_t *pcmd; | |
4147 | uint16_t cmdsize; | |
4148 | int rc; | |
4149 | ||
4150 | psli = &phba->sli; | |
92d7f7b0 JS |
4151 | cmdsize = sizeof(uint32_t) + sizeof(uint32_t) |
4152 | + (2 * sizeof(struct lpfc_name)); | |
dea3101e | 4153 | if (format) |
92d7f7b0 | 4154 | cmdsize += sizeof(RNID_TOP_DISC); |
dea3101e | 4155 | |
2e0fef85 JS |
4156 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
4157 | ndlp->nlp_DID, ELS_CMD_ACC); | |
488d1469 | 4158 | if (!elsiocb) |
c9f8735b | 4159 | return 1; |
dea3101e | 4160 | |
5b8bd0c9 JS |
4161 | icmd = &elsiocb->iocb; |
4162 | oldcmd = &oldiocb->iocb; | |
7851fe2c JS |
4163 | icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ |
4164 | icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id; | |
4165 | ||
dea3101e | 4166 | /* Xmit RNID ACC response tag <ulpIoTag> */ |
e8b62011 JS |
4167 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
4168 | "0132 Xmit RNID ACC response tag x%x xri x%x\n", | |
4169 | elsiocb->iotag, elsiocb->iocb.ulpContext); | |
dea3101e | 4170 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
dea3101e | 4171 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; |
92d7f7b0 | 4172 | pcmd += sizeof(uint32_t); |
dea3101e | 4173 | |
92d7f7b0 | 4174 | memset(pcmd, 0, sizeof(RNID)); |
dea3101e JB |
4175 | rn = (RNID *) (pcmd); |
4176 | rn->Format = format; | |
92d7f7b0 JS |
4177 | rn->CommonLen = (2 * sizeof(struct lpfc_name)); |
4178 | memcpy(&rn->portName, &vport->fc_portname, sizeof(struct lpfc_name)); | |
4179 | memcpy(&rn->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
dea3101e JB |
4180 | switch (format) { |
4181 | case 0: | |
4182 | rn->SpecificLen = 0; | |
4183 | break; | |
4184 | case RNID_TOPOLOGY_DISC: | |
92d7f7b0 | 4185 | rn->SpecificLen = sizeof(RNID_TOP_DISC); |
dea3101e | 4186 | memcpy(&rn->un.topologyDisc.portName, |
92d7f7b0 | 4187 | &vport->fc_portname, sizeof(struct lpfc_name)); |
dea3101e JB |
4188 | rn->un.topologyDisc.unitType = RNID_HBA; |
4189 | rn->un.topologyDisc.physPort = 0; | |
4190 | rn->un.topologyDisc.attachedNodes = 0; | |
4191 | break; | |
4192 | default: | |
4193 | rn->CommonLen = 0; | |
4194 | rn->SpecificLen = 0; | |
4195 | break; | |
4196 | } | |
4197 | ||
858c9f6c JS |
4198 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
4199 | "Issue ACC RNID: did:x%x flg:x%x", | |
4200 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
4201 | ||
dea3101e | 4202 | phba->fc_stat.elsXmitACC++; |
858c9f6c | 4203 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
dea3101e | 4204 | |
3772a991 | 4205 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
dea3101e JB |
4206 | if (rc == IOCB_ERROR) { |
4207 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 4208 | return 1; |
dea3101e | 4209 | } |
c9f8735b | 4210 | return 0; |
dea3101e JB |
4211 | } |
4212 | ||
19ca7609 JS |
4213 | /** |
4214 | * lpfc_els_clear_rrq - Clear the rq that this rrq describes. | |
4215 | * @vport: pointer to a virtual N_Port data structure. | |
4216 | * @iocb: pointer to the lpfc command iocb data structure. | |
4217 | * @ndlp: pointer to a node-list data structure. | |
4218 | * | |
4219 | * Return | |
4220 | **/ | |
4221 | static void | |
4222 | lpfc_els_clear_rrq(struct lpfc_vport *vport, | |
4223 | struct lpfc_iocbq *iocb, struct lpfc_nodelist *ndlp) | |
4224 | { | |
4225 | struct lpfc_hba *phba = vport->phba; | |
4226 | uint8_t *pcmd; | |
4227 | struct RRQ *rrq; | |
4228 | uint16_t rxid; | |
1151e3ec | 4229 | uint16_t xri; |
19ca7609 JS |
4230 | struct lpfc_node_rrq *prrq; |
4231 | ||
4232 | ||
4233 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) iocb->context2)->virt); | |
4234 | pcmd += sizeof(uint32_t); | |
4235 | rrq = (struct RRQ *)pcmd; | |
1151e3ec | 4236 | rrq->rrq_exchg = be32_to_cpu(rrq->rrq_exchg); |
9589b062 | 4237 | rxid = bf_get(rrq_rxid, rrq); |
19ca7609 JS |
4238 | |
4239 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
4240 | "2883 Clear RRQ for SID:x%x OXID:x%x RXID:x%x" | |
4241 | " x%x x%x\n", | |
1151e3ec | 4242 | be32_to_cpu(bf_get(rrq_did, rrq)), |
9589b062 | 4243 | bf_get(rrq_oxid, rrq), |
19ca7609 JS |
4244 | rxid, |
4245 | iocb->iotag, iocb->iocb.ulpContext); | |
4246 | ||
4247 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
4248 | "Clear RRQ: did:x%x flg:x%x exchg:x%.08x", | |
4249 | ndlp->nlp_DID, ndlp->nlp_flag, rrq->rrq_exchg); | |
1151e3ec | 4250 | if (vport->fc_myDID == be32_to_cpu(bf_get(rrq_did, rrq))) |
9589b062 | 4251 | xri = bf_get(rrq_oxid, rrq); |
1151e3ec JS |
4252 | else |
4253 | xri = rxid; | |
4254 | prrq = lpfc_get_active_rrq(vport, xri, ndlp->nlp_DID); | |
19ca7609 | 4255 | if (prrq) |
1151e3ec | 4256 | lpfc_clr_rrq_active(phba, xri, prrq); |
19ca7609 JS |
4257 | return; |
4258 | } | |
4259 | ||
12265f68 JS |
4260 | /** |
4261 | * lpfc_els_rsp_echo_acc - Issue echo acc response | |
4262 | * @vport: pointer to a virtual N_Port data structure. | |
4263 | * @data: pointer to echo data to return in the accept. | |
4264 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
4265 | * @ndlp: pointer to a node-list data structure. | |
4266 | * | |
4267 | * Return code | |
4268 | * 0 - Successfully issued acc echo response | |
4269 | * 1 - Failed to issue acc echo response | |
4270 | **/ | |
4271 | static int | |
4272 | lpfc_els_rsp_echo_acc(struct lpfc_vport *vport, uint8_t *data, | |
4273 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) | |
4274 | { | |
4275 | struct lpfc_hba *phba = vport->phba; | |
4276 | struct lpfc_iocbq *elsiocb; | |
4277 | struct lpfc_sli *psli; | |
4278 | uint8_t *pcmd; | |
4279 | uint16_t cmdsize; | |
4280 | int rc; | |
4281 | ||
4282 | psli = &phba->sli; | |
4283 | cmdsize = oldiocb->iocb.unsli3.rcvsli3.acc_len; | |
4284 | ||
bf08611b JS |
4285 | /* The accumulated length can exceed the BPL_SIZE. For |
4286 | * now, use this as the limit | |
4287 | */ | |
4288 | if (cmdsize > LPFC_BPL_SIZE) | |
4289 | cmdsize = LPFC_BPL_SIZE; | |
12265f68 JS |
4290 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
4291 | ndlp->nlp_DID, ELS_CMD_ACC); | |
4292 | if (!elsiocb) | |
4293 | return 1; | |
4294 | ||
7851fe2c JS |
4295 | elsiocb->iocb.ulpContext = oldiocb->iocb.ulpContext; /* Xri / rx_id */ |
4296 | elsiocb->iocb.unsli3.rcvsli3.ox_id = oldiocb->iocb.unsli3.rcvsli3.ox_id; | |
4297 | ||
12265f68 JS |
4298 | /* Xmit ECHO ACC response tag <ulpIoTag> */ |
4299 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
4300 | "2876 Xmit ECHO ACC response tag x%x xri x%x\n", | |
4301 | elsiocb->iotag, elsiocb->iocb.ulpContext); | |
4302 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
4303 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
4304 | pcmd += sizeof(uint32_t); | |
4305 | memcpy(pcmd, data, cmdsize - sizeof(uint32_t)); | |
4306 | ||
4307 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
4308 | "Issue ACC ECHO: did:x%x flg:x%x", | |
4309 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
4310 | ||
4311 | phba->fc_stat.elsXmitACC++; | |
4312 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; | |
12265f68 JS |
4313 | |
4314 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); | |
4315 | if (rc == IOCB_ERROR) { | |
4316 | lpfc_els_free_iocb(phba, elsiocb); | |
4317 | return 1; | |
4318 | } | |
4319 | return 0; | |
4320 | } | |
4321 | ||
e59058c4 | 4322 | /** |
3621a710 | 4323 | * lpfc_els_disc_adisc - Issue remaining adisc iocbs to npr nodes of a vport |
e59058c4 JS |
4324 | * @vport: pointer to a host virtual N_Port data structure. |
4325 | * | |
4326 | * This routine issues Address Discover (ADISC) ELS commands to those | |
4327 | * N_Ports which are in node port recovery state and ADISC has not been issued | |
4328 | * for the @vport. Each time an ELS ADISC IOCB is issued by invoking the | |
4329 | * lpfc_issue_els_adisc() routine, the per @vport number of discover count | |
4330 | * (num_disc_nodes) shall be incremented. If the num_disc_nodes reaches a | |
4331 | * pre-configured threshold (cfg_discovery_threads), the @vport fc_flag will | |
4332 | * be marked with FC_NLP_MORE bit and the process of issuing remaining ADISC | |
4333 | * IOCBs quit for later pick up. On the other hand, after walking through | |
4334 | * all the ndlps with the @vport and there is none ADISC IOCB issued, the | |
4335 | * @vport fc_flag shall be cleared with FC_NLP_MORE bit indicating there is | |
4336 | * no more ADISC need to be sent. | |
4337 | * | |
4338 | * Return code | |
4339 | * The number of N_Ports with adisc issued. | |
4340 | **/ | |
dea3101e | 4341 | int |
2e0fef85 | 4342 | lpfc_els_disc_adisc(struct lpfc_vport *vport) |
dea3101e | 4343 | { |
2e0fef85 | 4344 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
dea3101e | 4345 | struct lpfc_nodelist *ndlp, *next_ndlp; |
2e0fef85 | 4346 | int sentadisc = 0; |
dea3101e | 4347 | |
685f0bf7 | 4348 | /* go thru NPR nodes and issue any remaining ELS ADISCs */ |
2e0fef85 | 4349 | list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { |
e47c9093 JS |
4350 | if (!NLP_CHK_NODE_ACT(ndlp)) |
4351 | continue; | |
685f0bf7 JS |
4352 | if (ndlp->nlp_state == NLP_STE_NPR_NODE && |
4353 | (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 && | |
4354 | (ndlp->nlp_flag & NLP_NPR_ADISC) != 0) { | |
2e0fef85 | 4355 | spin_lock_irq(shost->host_lock); |
685f0bf7 | 4356 | ndlp->nlp_flag &= ~NLP_NPR_ADISC; |
2e0fef85 | 4357 | spin_unlock_irq(shost->host_lock); |
685f0bf7 | 4358 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 JS |
4359 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); |
4360 | lpfc_issue_els_adisc(vport, ndlp, 0); | |
685f0bf7 | 4361 | sentadisc++; |
2e0fef85 JS |
4362 | vport->num_disc_nodes++; |
4363 | if (vport->num_disc_nodes >= | |
3de2a653 | 4364 | vport->cfg_discovery_threads) { |
2e0fef85 JS |
4365 | spin_lock_irq(shost->host_lock); |
4366 | vport->fc_flag |= FC_NLP_MORE; | |
4367 | spin_unlock_irq(shost->host_lock); | |
685f0bf7 | 4368 | break; |
dea3101e JB |
4369 | } |
4370 | } | |
4371 | } | |
4372 | if (sentadisc == 0) { | |
2e0fef85 JS |
4373 | spin_lock_irq(shost->host_lock); |
4374 | vport->fc_flag &= ~FC_NLP_MORE; | |
4375 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 4376 | } |
2fe165b6 | 4377 | return sentadisc; |
dea3101e JB |
4378 | } |
4379 | ||
e59058c4 | 4380 | /** |
3621a710 | 4381 | * lpfc_els_disc_plogi - Issue plogi for all npr nodes of a vport before adisc |
e59058c4 JS |
4382 | * @vport: pointer to a host virtual N_Port data structure. |
4383 | * | |
4384 | * This routine issues Port Login (PLOGI) ELS commands to all the N_Ports | |
4385 | * which are in node port recovery state, with a @vport. Each time an ELS | |
4386 | * ADISC PLOGI IOCB is issued by invoking the lpfc_issue_els_plogi() routine, | |
4387 | * the per @vport number of discover count (num_disc_nodes) shall be | |
4388 | * incremented. If the num_disc_nodes reaches a pre-configured threshold | |
4389 | * (cfg_discovery_threads), the @vport fc_flag will be marked with FC_NLP_MORE | |
4390 | * bit set and quit the process of issuing remaining ADISC PLOGIN IOCBs for | |
4391 | * later pick up. On the other hand, after walking through all the ndlps with | |
4392 | * the @vport and there is none ADISC PLOGI IOCB issued, the @vport fc_flag | |
4393 | * shall be cleared with the FC_NLP_MORE bit indicating there is no more ADISC | |
4394 | * PLOGI need to be sent. | |
4395 | * | |
4396 | * Return code | |
4397 | * The number of N_Ports with plogi issued. | |
4398 | **/ | |
dea3101e | 4399 | int |
2e0fef85 | 4400 | lpfc_els_disc_plogi(struct lpfc_vport *vport) |
dea3101e | 4401 | { |
2e0fef85 | 4402 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
dea3101e | 4403 | struct lpfc_nodelist *ndlp, *next_ndlp; |
2e0fef85 | 4404 | int sentplogi = 0; |
dea3101e | 4405 | |
2e0fef85 JS |
4406 | /* go thru NPR nodes and issue any remaining ELS PLOGIs */ |
4407 | list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { | |
e47c9093 JS |
4408 | if (!NLP_CHK_NODE_ACT(ndlp)) |
4409 | continue; | |
685f0bf7 JS |
4410 | if (ndlp->nlp_state == NLP_STE_NPR_NODE && |
4411 | (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 && | |
4412 | (ndlp->nlp_flag & NLP_DELAY_TMO) == 0 && | |
4413 | (ndlp->nlp_flag & NLP_NPR_ADISC) == 0) { | |
4414 | ndlp->nlp_prev_state = ndlp->nlp_state; | |
2e0fef85 JS |
4415 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); |
4416 | lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); | |
685f0bf7 | 4417 | sentplogi++; |
2e0fef85 JS |
4418 | vport->num_disc_nodes++; |
4419 | if (vport->num_disc_nodes >= | |
3de2a653 | 4420 | vport->cfg_discovery_threads) { |
2e0fef85 JS |
4421 | spin_lock_irq(shost->host_lock); |
4422 | vport->fc_flag |= FC_NLP_MORE; | |
4423 | spin_unlock_irq(shost->host_lock); | |
685f0bf7 | 4424 | break; |
dea3101e JB |
4425 | } |
4426 | } | |
4427 | } | |
87af33fe JS |
4428 | if (sentplogi) { |
4429 | lpfc_set_disctmo(vport); | |
4430 | } | |
4431 | else { | |
2e0fef85 JS |
4432 | spin_lock_irq(shost->host_lock); |
4433 | vport->fc_flag &= ~FC_NLP_MORE; | |
4434 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 4435 | } |
2fe165b6 | 4436 | return sentplogi; |
dea3101e JB |
4437 | } |
4438 | ||
e59058c4 | 4439 | /** |
3621a710 | 4440 | * lpfc_els_flush_rscn - Clean up any rscn activities with a vport |
e59058c4 JS |
4441 | * @vport: pointer to a host virtual N_Port data structure. |
4442 | * | |
4443 | * This routine cleans up any Registration State Change Notification | |
4444 | * (RSCN) activity with a @vport. Note that the fc_rscn_flush flag of the | |
4445 | * @vport together with the host_lock is used to prevent multiple thread | |
4446 | * trying to access the RSCN array on a same @vport at the same time. | |
4447 | **/ | |
92d7f7b0 | 4448 | void |
2e0fef85 | 4449 | lpfc_els_flush_rscn(struct lpfc_vport *vport) |
dea3101e | 4450 | { |
2e0fef85 JS |
4451 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
4452 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
4453 | int i; |
4454 | ||
7f5f3d0d JS |
4455 | spin_lock_irq(shost->host_lock); |
4456 | if (vport->fc_rscn_flush) { | |
4457 | /* Another thread is walking fc_rscn_id_list on this vport */ | |
4458 | spin_unlock_irq(shost->host_lock); | |
4459 | return; | |
4460 | } | |
4461 | /* Indicate we are walking lpfc_els_flush_rscn on this vport */ | |
4462 | vport->fc_rscn_flush = 1; | |
4463 | spin_unlock_irq(shost->host_lock); | |
4464 | ||
2e0fef85 | 4465 | for (i = 0; i < vport->fc_rscn_id_cnt; i++) { |
92d7f7b0 | 4466 | lpfc_in_buf_free(phba, vport->fc_rscn_id_list[i]); |
2e0fef85 | 4467 | vport->fc_rscn_id_list[i] = NULL; |
dea3101e | 4468 | } |
2e0fef85 JS |
4469 | spin_lock_irq(shost->host_lock); |
4470 | vport->fc_rscn_id_cnt = 0; | |
4471 | vport->fc_flag &= ~(FC_RSCN_MODE | FC_RSCN_DISCOVERY); | |
4472 | spin_unlock_irq(shost->host_lock); | |
4473 | lpfc_can_disctmo(vport); | |
7f5f3d0d JS |
4474 | /* Indicate we are done walking this fc_rscn_id_list */ |
4475 | vport->fc_rscn_flush = 0; | |
dea3101e JB |
4476 | } |
4477 | ||
e59058c4 | 4478 | /** |
3621a710 | 4479 | * lpfc_rscn_payload_check - Check whether there is a pending rscn to a did |
e59058c4 JS |
4480 | * @vport: pointer to a host virtual N_Port data structure. |
4481 | * @did: remote destination port identifier. | |
4482 | * | |
4483 | * This routine checks whether there is any pending Registration State | |
4484 | * Configuration Notification (RSCN) to a @did on @vport. | |
4485 | * | |
4486 | * Return code | |
4487 | * None zero - The @did matched with a pending rscn | |
4488 | * 0 - not able to match @did with a pending rscn | |
4489 | **/ | |
dea3101e | 4490 | int |
2e0fef85 | 4491 | lpfc_rscn_payload_check(struct lpfc_vport *vport, uint32_t did) |
dea3101e JB |
4492 | { |
4493 | D_ID ns_did; | |
4494 | D_ID rscn_did; | |
dea3101e | 4495 | uint32_t *lp; |
92d7f7b0 | 4496 | uint32_t payload_len, i; |
7f5f3d0d | 4497 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
dea3101e JB |
4498 | |
4499 | ns_did.un.word = did; | |
dea3101e JB |
4500 | |
4501 | /* Never match fabric nodes for RSCNs */ | |
4502 | if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) | |
2e0fef85 | 4503 | return 0; |
dea3101e JB |
4504 | |
4505 | /* If we are doing a FULL RSCN rediscovery, match everything */ | |
2e0fef85 | 4506 | if (vport->fc_flag & FC_RSCN_DISCOVERY) |
c9f8735b | 4507 | return did; |
dea3101e | 4508 | |
7f5f3d0d JS |
4509 | spin_lock_irq(shost->host_lock); |
4510 | if (vport->fc_rscn_flush) { | |
4511 | /* Another thread is walking fc_rscn_id_list on this vport */ | |
4512 | spin_unlock_irq(shost->host_lock); | |
4513 | return 0; | |
4514 | } | |
4515 | /* Indicate we are walking fc_rscn_id_list on this vport */ | |
4516 | vport->fc_rscn_flush = 1; | |
4517 | spin_unlock_irq(shost->host_lock); | |
2e0fef85 | 4518 | for (i = 0; i < vport->fc_rscn_id_cnt; i++) { |
92d7f7b0 JS |
4519 | lp = vport->fc_rscn_id_list[i]->virt; |
4520 | payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK); | |
4521 | payload_len -= sizeof(uint32_t); /* take off word 0 */ | |
dea3101e | 4522 | while (payload_len) { |
92d7f7b0 JS |
4523 | rscn_did.un.word = be32_to_cpu(*lp++); |
4524 | payload_len -= sizeof(uint32_t); | |
eaf15d5b JS |
4525 | switch (rscn_did.un.b.resv & RSCN_ADDRESS_FORMAT_MASK) { |
4526 | case RSCN_ADDRESS_FORMAT_PORT: | |
6fb120a7 JS |
4527 | if ((ns_did.un.b.domain == rscn_did.un.b.domain) |
4528 | && (ns_did.un.b.area == rscn_did.un.b.area) | |
4529 | && (ns_did.un.b.id == rscn_did.un.b.id)) | |
7f5f3d0d | 4530 | goto return_did_out; |
dea3101e | 4531 | break; |
eaf15d5b | 4532 | case RSCN_ADDRESS_FORMAT_AREA: |
dea3101e JB |
4533 | if ((ns_did.un.b.domain == rscn_did.un.b.domain) |
4534 | && (ns_did.un.b.area == rscn_did.un.b.area)) | |
7f5f3d0d | 4535 | goto return_did_out; |
dea3101e | 4536 | break; |
eaf15d5b | 4537 | case RSCN_ADDRESS_FORMAT_DOMAIN: |
dea3101e | 4538 | if (ns_did.un.b.domain == rscn_did.un.b.domain) |
7f5f3d0d | 4539 | goto return_did_out; |
dea3101e | 4540 | break; |
eaf15d5b | 4541 | case RSCN_ADDRESS_FORMAT_FABRIC: |
7f5f3d0d | 4542 | goto return_did_out; |
dea3101e JB |
4543 | } |
4544 | } | |
92d7f7b0 | 4545 | } |
7f5f3d0d JS |
4546 | /* Indicate we are done with walking fc_rscn_id_list on this vport */ |
4547 | vport->fc_rscn_flush = 0; | |
92d7f7b0 | 4548 | return 0; |
7f5f3d0d JS |
4549 | return_did_out: |
4550 | /* Indicate we are done with walking fc_rscn_id_list on this vport */ | |
4551 | vport->fc_rscn_flush = 0; | |
4552 | return did; | |
dea3101e JB |
4553 | } |
4554 | ||
e59058c4 | 4555 | /** |
3621a710 | 4556 | * lpfc_rscn_recovery_check - Send recovery event to vport nodes matching rscn |
e59058c4 JS |
4557 | * @vport: pointer to a host virtual N_Port data structure. |
4558 | * | |
4559 | * This routine sends recovery (NLP_EVT_DEVICE_RECOVERY) event to the | |
4560 | * state machine for a @vport's nodes that are with pending RSCN (Registration | |
4561 | * State Change Notification). | |
4562 | * | |
4563 | * Return code | |
4564 | * 0 - Successful (currently alway return 0) | |
4565 | **/ | |
dea3101e | 4566 | static int |
2e0fef85 | 4567 | lpfc_rscn_recovery_check(struct lpfc_vport *vport) |
dea3101e | 4568 | { |
685f0bf7 | 4569 | struct lpfc_nodelist *ndlp = NULL; |
dea3101e | 4570 | |
0d2b6b83 | 4571 | /* Move all affected nodes by pending RSCNs to NPR state. */ |
2e0fef85 | 4572 | list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { |
e47c9093 | 4573 | if (!NLP_CHK_NODE_ACT(ndlp) || |
0d2b6b83 JS |
4574 | (ndlp->nlp_state == NLP_STE_UNUSED_NODE) || |
4575 | !lpfc_rscn_payload_check(vport, ndlp->nlp_DID)) | |
685f0bf7 | 4576 | continue; |
2e0fef85 | 4577 | lpfc_disc_state_machine(vport, ndlp, NULL, |
0d2b6b83 JS |
4578 | NLP_EVT_DEVICE_RECOVERY); |
4579 | lpfc_cancel_retry_delay_tmo(vport, ndlp); | |
dea3101e | 4580 | } |
c9f8735b | 4581 | return 0; |
dea3101e JB |
4582 | } |
4583 | ||
ddcc50f0 | 4584 | /** |
3621a710 | 4585 | * lpfc_send_rscn_event - Send an RSCN event to management application |
ddcc50f0 JS |
4586 | * @vport: pointer to a host virtual N_Port data structure. |
4587 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4588 | * | |
4589 | * lpfc_send_rscn_event sends an RSCN netlink event to management | |
4590 | * applications. | |
4591 | */ | |
4592 | static void | |
4593 | lpfc_send_rscn_event(struct lpfc_vport *vport, | |
4594 | struct lpfc_iocbq *cmdiocb) | |
4595 | { | |
4596 | struct lpfc_dmabuf *pcmd; | |
4597 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
4598 | uint32_t *payload_ptr; | |
4599 | uint32_t payload_len; | |
4600 | struct lpfc_rscn_event_header *rscn_event_data; | |
4601 | ||
4602 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
4603 | payload_ptr = (uint32_t *) pcmd->virt; | |
4604 | payload_len = be32_to_cpu(*payload_ptr & ~ELS_CMD_MASK); | |
4605 | ||
4606 | rscn_event_data = kmalloc(sizeof(struct lpfc_rscn_event_header) + | |
4607 | payload_len, GFP_KERNEL); | |
4608 | if (!rscn_event_data) { | |
4609 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
4610 | "0147 Failed to allocate memory for RSCN event\n"); | |
4611 | return; | |
4612 | } | |
4613 | rscn_event_data->event_type = FC_REG_RSCN_EVENT; | |
4614 | rscn_event_data->payload_length = payload_len; | |
4615 | memcpy(rscn_event_data->rscn_payload, payload_ptr, | |
4616 | payload_len); | |
4617 | ||
4618 | fc_host_post_vendor_event(shost, | |
4619 | fc_get_event_number(), | |
4620 | sizeof(struct lpfc_els_event_header) + payload_len, | |
4621 | (char *)rscn_event_data, | |
4622 | LPFC_NL_VENDOR_ID); | |
4623 | ||
4624 | kfree(rscn_event_data); | |
4625 | } | |
4626 | ||
e59058c4 | 4627 | /** |
3621a710 | 4628 | * lpfc_els_rcv_rscn - Process an unsolicited rscn iocb |
e59058c4 JS |
4629 | * @vport: pointer to a host virtual N_Port data structure. |
4630 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4631 | * @ndlp: pointer to a node-list data structure. | |
4632 | * | |
4633 | * This routine processes an unsolicited RSCN (Registration State Change | |
4634 | * Notification) IOCB. First, the payload of the unsolicited RSCN is walked | |
4635 | * to invoke fc_host_post_event() routine to the FC transport layer. If the | |
4636 | * discover state machine is about to begin discovery, it just accepts the | |
4637 | * RSCN and the discovery process will satisfy the RSCN. If this RSCN only | |
4638 | * contains N_Port IDs for other vports on this HBA, it just accepts the | |
4639 | * RSCN and ignore processing it. If the state machine is in the recovery | |
4640 | * state, the fc_rscn_id_list of this @vport is walked and the | |
4641 | * lpfc_rscn_recovery_check() routine is invoked to send recovery event for | |
4642 | * all nodes that match RSCN payload. Otherwise, the lpfc_els_handle_rscn() | |
4643 | * routine is invoked to handle the RSCN event. | |
4644 | * | |
4645 | * Return code | |
4646 | * 0 - Just sent the acc response | |
4647 | * 1 - Sent the acc response and waited for name server completion | |
4648 | **/ | |
dea3101e | 4649 | static int |
2e0fef85 | 4650 | lpfc_els_rcv_rscn(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
51ef4c26 | 4651 | struct lpfc_nodelist *ndlp) |
dea3101e | 4652 | { |
2e0fef85 JS |
4653 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
4654 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 4655 | struct lpfc_dmabuf *pcmd; |
92d7f7b0 | 4656 | uint32_t *lp, *datap; |
dea3101e | 4657 | IOCB_t *icmd; |
92d7f7b0 | 4658 | uint32_t payload_len, length, nportid, *cmd; |
7f5f3d0d | 4659 | int rscn_cnt; |
92d7f7b0 | 4660 | int rscn_id = 0, hba_id = 0; |
d2873e4c | 4661 | int i; |
dea3101e JB |
4662 | |
4663 | icmd = &cmdiocb->iocb; | |
4664 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
4665 | lp = (uint32_t *) pcmd->virt; | |
4666 | ||
92d7f7b0 JS |
4667 | payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK); |
4668 | payload_len -= sizeof(uint32_t); /* take off word 0 */ | |
dea3101e | 4669 | /* RSCN received */ |
e8b62011 JS |
4670 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
4671 | "0214 RSCN received Data: x%x x%x x%x x%x\n", | |
7f5f3d0d JS |
4672 | vport->fc_flag, payload_len, *lp, |
4673 | vport->fc_rscn_id_cnt); | |
ddcc50f0 JS |
4674 | |
4675 | /* Send an RSCN event to the management application */ | |
4676 | lpfc_send_rscn_event(vport, cmdiocb); | |
4677 | ||
d2873e4c | 4678 | for (i = 0; i < payload_len/sizeof(uint32_t); i++) |
2e0fef85 | 4679 | fc_host_post_event(shost, fc_get_event_number(), |
d2873e4c JS |
4680 | FCH_EVT_RSCN, lp[i]); |
4681 | ||
dea3101e JB |
4682 | /* If we are about to begin discovery, just ACC the RSCN. |
4683 | * Discovery processing will satisfy it. | |
4684 | */ | |
2e0fef85 | 4685 | if (vport->port_state <= LPFC_NS_QRY) { |
858c9f6c JS |
4686 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
4687 | "RCV RSCN ignore: did:x%x/ste:x%x flg:x%x", | |
4688 | ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); | |
4689 | ||
51ef4c26 | 4690 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
c9f8735b | 4691 | return 0; |
dea3101e JB |
4692 | } |
4693 | ||
92d7f7b0 JS |
4694 | /* If this RSCN just contains NPortIDs for other vports on this HBA, |
4695 | * just ACC and ignore it. | |
4696 | */ | |
4697 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && | |
3de2a653 | 4698 | !(vport->cfg_peer_port_login)) { |
92d7f7b0 JS |
4699 | i = payload_len; |
4700 | datap = lp; | |
4701 | while (i > 0) { | |
4702 | nportid = *datap++; | |
4703 | nportid = ((be32_to_cpu(nportid)) & Mask_DID); | |
4704 | i -= sizeof(uint32_t); | |
4705 | rscn_id++; | |
549e55cd JS |
4706 | if (lpfc_find_vport_by_did(phba, nportid)) |
4707 | hba_id++; | |
92d7f7b0 JS |
4708 | } |
4709 | if (rscn_id == hba_id) { | |
4710 | /* ALL NPortIDs in RSCN are on HBA */ | |
e8b62011 | 4711 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
d7c255b2 | 4712 | "0219 Ignore RSCN " |
e8b62011 JS |
4713 | "Data: x%x x%x x%x x%x\n", |
4714 | vport->fc_flag, payload_len, | |
7f5f3d0d | 4715 | *lp, vport->fc_rscn_id_cnt); |
858c9f6c JS |
4716 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
4717 | "RCV RSCN vport: did:x%x/ste:x%x flg:x%x", | |
4718 | ndlp->nlp_DID, vport->port_state, | |
4719 | ndlp->nlp_flag); | |
4720 | ||
92d7f7b0 | 4721 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, |
51ef4c26 | 4722 | ndlp, NULL); |
92d7f7b0 JS |
4723 | return 0; |
4724 | } | |
4725 | } | |
4726 | ||
7f5f3d0d JS |
4727 | spin_lock_irq(shost->host_lock); |
4728 | if (vport->fc_rscn_flush) { | |
4729 | /* Another thread is walking fc_rscn_id_list on this vport */ | |
7f5f3d0d | 4730 | vport->fc_flag |= FC_RSCN_DISCOVERY; |
97957244 | 4731 | spin_unlock_irq(shost->host_lock); |
58da1ffb JS |
4732 | /* Send back ACC */ |
4733 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); | |
7f5f3d0d JS |
4734 | return 0; |
4735 | } | |
4736 | /* Indicate we are walking fc_rscn_id_list on this vport */ | |
4737 | vport->fc_rscn_flush = 1; | |
4738 | spin_unlock_irq(shost->host_lock); | |
af901ca1 | 4739 | /* Get the array count after successfully have the token */ |
7f5f3d0d | 4740 | rscn_cnt = vport->fc_rscn_id_cnt; |
dea3101e JB |
4741 | /* If we are already processing an RSCN, save the received |
4742 | * RSCN payload buffer, cmdiocb->context2 to process later. | |
4743 | */ | |
2e0fef85 | 4744 | if (vport->fc_flag & (FC_RSCN_MODE | FC_NDISC_ACTIVE)) { |
858c9f6c JS |
4745 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
4746 | "RCV RSCN defer: did:x%x/ste:x%x flg:x%x", | |
4747 | ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); | |
4748 | ||
09372820 | 4749 | spin_lock_irq(shost->host_lock); |
92d7f7b0 JS |
4750 | vport->fc_flag |= FC_RSCN_DEFERRED; |
4751 | if ((rscn_cnt < FC_MAX_HOLD_RSCN) && | |
2e0fef85 | 4752 | !(vport->fc_flag & FC_RSCN_DISCOVERY)) { |
2e0fef85 JS |
4753 | vport->fc_flag |= FC_RSCN_MODE; |
4754 | spin_unlock_irq(shost->host_lock); | |
92d7f7b0 JS |
4755 | if (rscn_cnt) { |
4756 | cmd = vport->fc_rscn_id_list[rscn_cnt-1]->virt; | |
4757 | length = be32_to_cpu(*cmd & ~ELS_CMD_MASK); | |
4758 | } | |
4759 | if ((rscn_cnt) && | |
4760 | (payload_len + length <= LPFC_BPL_SIZE)) { | |
4761 | *cmd &= ELS_CMD_MASK; | |
7f5f3d0d | 4762 | *cmd |= cpu_to_be32(payload_len + length); |
92d7f7b0 JS |
4763 | memcpy(((uint8_t *)cmd) + length, lp, |
4764 | payload_len); | |
4765 | } else { | |
4766 | vport->fc_rscn_id_list[rscn_cnt] = pcmd; | |
4767 | vport->fc_rscn_id_cnt++; | |
4768 | /* If we zero, cmdiocb->context2, the calling | |
4769 | * routine will not try to free it. | |
4770 | */ | |
4771 | cmdiocb->context2 = NULL; | |
4772 | } | |
dea3101e | 4773 | /* Deferred RSCN */ |
e8b62011 JS |
4774 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
4775 | "0235 Deferred RSCN " | |
4776 | "Data: x%x x%x x%x\n", | |
4777 | vport->fc_rscn_id_cnt, vport->fc_flag, | |
4778 | vport->port_state); | |
dea3101e | 4779 | } else { |
2e0fef85 JS |
4780 | vport->fc_flag |= FC_RSCN_DISCOVERY; |
4781 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 4782 | /* ReDiscovery RSCN */ |
e8b62011 JS |
4783 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
4784 | "0234 ReDiscovery RSCN " | |
4785 | "Data: x%x x%x x%x\n", | |
4786 | vport->fc_rscn_id_cnt, vport->fc_flag, | |
4787 | vport->port_state); | |
dea3101e | 4788 | } |
7f5f3d0d JS |
4789 | /* Indicate we are done walking fc_rscn_id_list on this vport */ |
4790 | vport->fc_rscn_flush = 0; | |
dea3101e | 4791 | /* Send back ACC */ |
51ef4c26 | 4792 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
dea3101e | 4793 | /* send RECOVERY event for ALL nodes that match RSCN payload */ |
2e0fef85 | 4794 | lpfc_rscn_recovery_check(vport); |
09372820 | 4795 | spin_lock_irq(shost->host_lock); |
92d7f7b0 | 4796 | vport->fc_flag &= ~FC_RSCN_DEFERRED; |
09372820 | 4797 | spin_unlock_irq(shost->host_lock); |
c9f8735b | 4798 | return 0; |
dea3101e | 4799 | } |
858c9f6c JS |
4800 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
4801 | "RCV RSCN: did:x%x/ste:x%x flg:x%x", | |
4802 | ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); | |
4803 | ||
2e0fef85 JS |
4804 | spin_lock_irq(shost->host_lock); |
4805 | vport->fc_flag |= FC_RSCN_MODE; | |
4806 | spin_unlock_irq(shost->host_lock); | |
4807 | vport->fc_rscn_id_list[vport->fc_rscn_id_cnt++] = pcmd; | |
7f5f3d0d JS |
4808 | /* Indicate we are done walking fc_rscn_id_list on this vport */ |
4809 | vport->fc_rscn_flush = 0; | |
dea3101e JB |
4810 | /* |
4811 | * If we zero, cmdiocb->context2, the calling routine will | |
4812 | * not try to free it. | |
4813 | */ | |
4814 | cmdiocb->context2 = NULL; | |
2e0fef85 | 4815 | lpfc_set_disctmo(vport); |
dea3101e | 4816 | /* Send back ACC */ |
51ef4c26 | 4817 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
dea3101e | 4818 | /* send RECOVERY event for ALL nodes that match RSCN payload */ |
2e0fef85 | 4819 | lpfc_rscn_recovery_check(vport); |
2e0fef85 | 4820 | return lpfc_els_handle_rscn(vport); |
dea3101e JB |
4821 | } |
4822 | ||
e59058c4 | 4823 | /** |
3621a710 | 4824 | * lpfc_els_handle_rscn - Handle rscn for a vport |
e59058c4 JS |
4825 | * @vport: pointer to a host virtual N_Port data structure. |
4826 | * | |
4827 | * This routine handles the Registration State Configuration Notification | |
4828 | * (RSCN) for a @vport. If login to NameServer does not exist, a new ndlp shall | |
4829 | * be created and a Port Login (PLOGI) to the NameServer is issued. Otherwise, | |
4830 | * if the ndlp to NameServer exists, a Common Transport (CT) command to the | |
4831 | * NameServer shall be issued. If CT command to the NameServer fails to be | |
4832 | * issued, the lpfc_els_flush_rscn() routine shall be invoked to clean up any | |
4833 | * RSCN activities with the @vport. | |
4834 | * | |
4835 | * Return code | |
4836 | * 0 - Cleaned up rscn on the @vport | |
4837 | * 1 - Wait for plogi to name server before proceed | |
4838 | **/ | |
dea3101e | 4839 | int |
2e0fef85 | 4840 | lpfc_els_handle_rscn(struct lpfc_vport *vport) |
dea3101e JB |
4841 | { |
4842 | struct lpfc_nodelist *ndlp; | |
2e0fef85 | 4843 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 4844 | |
92d7f7b0 JS |
4845 | /* Ignore RSCN if the port is being torn down. */ |
4846 | if (vport->load_flag & FC_UNLOADING) { | |
4847 | lpfc_els_flush_rscn(vport); | |
4848 | return 0; | |
4849 | } | |
4850 | ||
dea3101e | 4851 | /* Start timer for RSCN processing */ |
2e0fef85 | 4852 | lpfc_set_disctmo(vport); |
dea3101e JB |
4853 | |
4854 | /* RSCN processed */ | |
e8b62011 JS |
4855 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
4856 | "0215 RSCN processed Data: x%x x%x x%x x%x\n", | |
4857 | vport->fc_flag, 0, vport->fc_rscn_id_cnt, | |
4858 | vport->port_state); | |
dea3101e JB |
4859 | |
4860 | /* To process RSCN, first compare RSCN data with NameServer */ | |
2e0fef85 | 4861 | vport->fc_ns_retry = 0; |
0ff10d46 JS |
4862 | vport->num_disc_nodes = 0; |
4863 | ||
2e0fef85 | 4864 | ndlp = lpfc_findnode_did(vport, NameServer_DID); |
e47c9093 JS |
4865 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) |
4866 | && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) { | |
dea3101e | 4867 | /* Good ndlp, issue CT Request to NameServer */ |
92d7f7b0 | 4868 | if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0) == 0) |
dea3101e JB |
4869 | /* Wait for NameServer query cmpl before we can |
4870 | continue */ | |
c9f8735b | 4871 | return 1; |
dea3101e JB |
4872 | } else { |
4873 | /* If login to NameServer does not exist, issue one */ | |
4874 | /* Good status, issue PLOGI to NameServer */ | |
2e0fef85 | 4875 | ndlp = lpfc_findnode_did(vport, NameServer_DID); |
e47c9093 | 4876 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) |
dea3101e JB |
4877 | /* Wait for NameServer login cmpl before we can |
4878 | continue */ | |
c9f8735b | 4879 | return 1; |
2e0fef85 | 4880 | |
e47c9093 JS |
4881 | if (ndlp) { |
4882 | ndlp = lpfc_enable_node(vport, ndlp, | |
4883 | NLP_STE_PLOGI_ISSUE); | |
4884 | if (!ndlp) { | |
4885 | lpfc_els_flush_rscn(vport); | |
4886 | return 0; | |
4887 | } | |
4888 | ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE; | |
dea3101e | 4889 | } else { |
e47c9093 JS |
4890 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); |
4891 | if (!ndlp) { | |
4892 | lpfc_els_flush_rscn(vport); | |
4893 | return 0; | |
4894 | } | |
2e0fef85 | 4895 | lpfc_nlp_init(vport, ndlp, NameServer_DID); |
5024ab17 | 4896 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 4897 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); |
dea3101e | 4898 | } |
e47c9093 JS |
4899 | ndlp->nlp_type |= NLP_FABRIC; |
4900 | lpfc_issue_els_plogi(vport, NameServer_DID, 0); | |
4901 | /* Wait for NameServer login cmpl before we can | |
4902 | * continue | |
4903 | */ | |
4904 | return 1; | |
dea3101e JB |
4905 | } |
4906 | ||
2e0fef85 | 4907 | lpfc_els_flush_rscn(vport); |
c9f8735b | 4908 | return 0; |
dea3101e JB |
4909 | } |
4910 | ||
e59058c4 | 4911 | /** |
3621a710 | 4912 | * lpfc_els_rcv_flogi - Process an unsolicited flogi iocb |
e59058c4 JS |
4913 | * @vport: pointer to a host virtual N_Port data structure. |
4914 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4915 | * @ndlp: pointer to a node-list data structure. | |
4916 | * | |
4917 | * This routine processes Fabric Login (FLOGI) IOCB received as an ELS | |
4918 | * unsolicited event. An unsolicited FLOGI can be received in a point-to- | |
4919 | * point topology. As an unsolicited FLOGI should not be received in a loop | |
4920 | * mode, any unsolicited FLOGI received in loop mode shall be ignored. The | |
4921 | * lpfc_check_sparm() routine is invoked to check the parameters in the | |
4922 | * unsolicited FLOGI. If parameters validation failed, the routine | |
4923 | * lpfc_els_rsp_reject() shall be called with reject reason code set to | |
4924 | * LSEXP_SPARM_OPTIONS to reject the FLOGI. Otherwise, the Port WWN in the | |
4925 | * FLOGI shall be compared with the Port WWN of the @vport to determine who | |
4926 | * will initiate PLOGI. The higher lexicographical value party shall has | |
4927 | * higher priority (as the winning port) and will initiate PLOGI and | |
4928 | * communicate Port_IDs (Addresses) for both nodes in PLOGI. The result | |
4929 | * of this will be marked in the @vport fc_flag field with FC_PT2PT_PLOGI | |
4930 | * and then the lpfc_els_rsp_acc() routine is invoked to accept the FLOGI. | |
4931 | * | |
4932 | * Return code | |
4933 | * 0 - Successfully processed the unsolicited flogi | |
4934 | * 1 - Failed to process the unsolicited flogi | |
4935 | **/ | |
dea3101e | 4936 | static int |
2e0fef85 | 4937 | lpfc_els_rcv_flogi(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
51ef4c26 | 4938 | struct lpfc_nodelist *ndlp) |
dea3101e | 4939 | { |
2e0fef85 JS |
4940 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
4941 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
4942 | struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; |
4943 | uint32_t *lp = (uint32_t *) pcmd->virt; | |
4944 | IOCB_t *icmd = &cmdiocb->iocb; | |
4945 | struct serv_parm *sp; | |
4946 | LPFC_MBOXQ_t *mbox; | |
4947 | struct ls_rjt stat; | |
4948 | uint32_t cmd, did; | |
4949 | int rc; | |
4950 | ||
4951 | cmd = *lp++; | |
4952 | sp = (struct serv_parm *) lp; | |
4953 | ||
4954 | /* FLOGI received */ | |
4955 | ||
2e0fef85 | 4956 | lpfc_set_disctmo(vport); |
dea3101e | 4957 | |
76a95d75 | 4958 | if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { |
dea3101e JB |
4959 | /* We should never receive a FLOGI in loop mode, ignore it */ |
4960 | did = icmd->un.elsreq64.remoteID; | |
4961 | ||
4962 | /* An FLOGI ELS command <elsCmd> was received from DID <did> in | |
4963 | Loop Mode */ | |
e8b62011 JS |
4964 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
4965 | "0113 An FLOGI ELS command x%x was " | |
4966 | "received from DID x%x in Loop Mode\n", | |
4967 | cmd, did); | |
c9f8735b | 4968 | return 1; |
dea3101e JB |
4969 | } |
4970 | ||
341af102 | 4971 | if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3, 1))) { |
dea3101e JB |
4972 | /* For a FLOGI we accept, then if our portname is greater |
4973 | * then the remote portname we initiate Nport login. | |
4974 | */ | |
4975 | ||
2e0fef85 | 4976 | rc = memcmp(&vport->fc_portname, &sp->portName, |
92d7f7b0 | 4977 | sizeof(struct lpfc_name)); |
dea3101e JB |
4978 | |
4979 | if (!rc) { | |
1b51197d JS |
4980 | if (phba->sli_rev < LPFC_SLI_REV4) { |
4981 | mbox = mempool_alloc(phba->mbox_mem_pool, | |
4982 | GFP_KERNEL); | |
4983 | if (!mbox) | |
4984 | return 1; | |
4985 | lpfc_linkdown(phba); | |
4986 | lpfc_init_link(phba, mbox, | |
4987 | phba->cfg_topology, | |
4988 | phba->cfg_link_speed); | |
4989 | mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; | |
4990 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
4991 | mbox->vport = vport; | |
4992 | rc = lpfc_sli_issue_mbox(phba, mbox, | |
4993 | MBX_NOWAIT); | |
4994 | lpfc_set_loopback_flag(phba); | |
4995 | if (rc == MBX_NOT_FINISHED) | |
4996 | mempool_free(mbox, phba->mbox_mem_pool); | |
c9f8735b | 4997 | return 1; |
1b51197d JS |
4998 | } else { |
4999 | /* abort the flogi coming back to ourselves | |
5000 | * due to external loopback on the port. | |
5001 | */ | |
5002 | lpfc_els_abort_flogi(phba); | |
5003 | return 0; | |
dea3101e | 5004 | } |
2fe165b6 | 5005 | } else if (rc > 0) { /* greater than */ |
2e0fef85 JS |
5006 | spin_lock_irq(shost->host_lock); |
5007 | vport->fc_flag |= FC_PT2PT_PLOGI; | |
5008 | spin_unlock_irq(shost->host_lock); | |
939723a4 JS |
5009 | |
5010 | /* If we have the high WWPN we can assign our own | |
5011 | * myDID; otherwise, we have to WAIT for a PLOGI | |
5012 | * from the remote NPort to find out what it | |
5013 | * will be. | |
5014 | */ | |
e6446439 | 5015 | vport->fc_myDID = PT2PT_LocalID; |
939723a4 JS |
5016 | } |
5017 | ||
5018 | /* | |
5019 | * The vport state should go to LPFC_FLOGI only | |
5020 | * AFTER we issue a FLOGI, not receive one. | |
5021 | */ | |
2e0fef85 JS |
5022 | spin_lock_irq(shost->host_lock); |
5023 | vport->fc_flag |= FC_PT2PT; | |
5024 | vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
5025 | spin_unlock_irq(shost->host_lock); | |
939723a4 JS |
5026 | |
5027 | /* | |
5028 | * We temporarily set fc_myDID to make it look like we are | |
5029 | * a Fabric. This is done just so we end up with the right | |
5030 | * did / sid on the FLOGI ACC rsp. | |
5031 | */ | |
5032 | did = vport->fc_myDID; | |
5033 | vport->fc_myDID = Fabric_DID; | |
5034 | ||
dea3101e JB |
5035 | } else { |
5036 | /* Reject this request because invalid parameters */ | |
5037 | stat.un.b.lsRjtRsvd0 = 0; | |
5038 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
5039 | stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; | |
5040 | stat.un.b.vendorUnique = 0; | |
939723a4 JS |
5041 | |
5042 | /* | |
5043 | * We temporarily set fc_myDID to make it look like we are | |
5044 | * a Fabric. This is done just so we end up with the right | |
5045 | * did / sid on the FLOGI LS_RJT rsp. | |
5046 | */ | |
5047 | did = vport->fc_myDID; | |
5048 | vport->fc_myDID = Fabric_DID; | |
5049 | ||
858c9f6c JS |
5050 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, |
5051 | NULL); | |
939723a4 JS |
5052 | |
5053 | /* Now lets put fc_myDID back to what its supposed to be */ | |
5054 | vport->fc_myDID = did; | |
5055 | ||
c9f8735b | 5056 | return 1; |
dea3101e JB |
5057 | } |
5058 | ||
5059 | /* Send back ACC */ | |
51ef4c26 | 5060 | lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL); |
dea3101e | 5061 | |
939723a4 JS |
5062 | /* Now lets put fc_myDID back to what its supposed to be */ |
5063 | vport->fc_myDID = did; | |
5064 | ||
e6446439 | 5065 | if (!(vport->fc_flag & FC_PT2PT_PLOGI)) { |
939723a4 | 5066 | |
e6446439 JS |
5067 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
5068 | if (!mbox) | |
5069 | goto fail; | |
5070 | ||
5071 | lpfc_config_link(phba, mbox); | |
5072 | ||
5073 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
5074 | mbox->vport = vport; | |
5075 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); | |
5076 | if (rc == MBX_NOT_FINISHED) { | |
5077 | mempool_free(mbox, phba->mbox_mem_pool); | |
5078 | goto fail; | |
5079 | } | |
5080 | } | |
5081 | ||
c9f8735b | 5082 | return 0; |
e6446439 JS |
5083 | fail: |
5084 | return 1; | |
dea3101e JB |
5085 | } |
5086 | ||
e59058c4 | 5087 | /** |
3621a710 | 5088 | * lpfc_els_rcv_rnid - Process an unsolicited rnid iocb |
e59058c4 JS |
5089 | * @vport: pointer to a host virtual N_Port data structure. |
5090 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5091 | * @ndlp: pointer to a node-list data structure. | |
5092 | * | |
5093 | * This routine processes Request Node Identification Data (RNID) IOCB | |
5094 | * received as an ELS unsolicited event. Only when the RNID specified format | |
5095 | * 0x0 or 0xDF (Topology Discovery Specific Node Identification Data) | |
5096 | * present, this routine will invoke the lpfc_els_rsp_rnid_acc() routine to | |
5097 | * Accept (ACC) the RNID ELS command. All the other RNID formats are | |
5098 | * rejected by invoking the lpfc_els_rsp_reject() routine. | |
5099 | * | |
5100 | * Return code | |
5101 | * 0 - Successfully processed rnid iocb (currently always return 0) | |
5102 | **/ | |
dea3101e | 5103 | static int |
2e0fef85 JS |
5104 | lpfc_els_rcv_rnid(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
5105 | struct lpfc_nodelist *ndlp) | |
dea3101e JB |
5106 | { |
5107 | struct lpfc_dmabuf *pcmd; | |
5108 | uint32_t *lp; | |
5109 | IOCB_t *icmd; | |
5110 | RNID *rn; | |
5111 | struct ls_rjt stat; | |
5112 | uint32_t cmd, did; | |
5113 | ||
5114 | icmd = &cmdiocb->iocb; | |
5115 | did = icmd->un.elsreq64.remoteID; | |
5116 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
5117 | lp = (uint32_t *) pcmd->virt; | |
5118 | ||
5119 | cmd = *lp++; | |
5120 | rn = (RNID *) lp; | |
5121 | ||
5122 | /* RNID received */ | |
5123 | ||
5124 | switch (rn->Format) { | |
5125 | case 0: | |
5126 | case RNID_TOPOLOGY_DISC: | |
5127 | /* Send back ACC */ | |
2e0fef85 | 5128 | lpfc_els_rsp_rnid_acc(vport, rn->Format, cmdiocb, ndlp); |
dea3101e JB |
5129 | break; |
5130 | default: | |
5131 | /* Reject this request because format not supported */ | |
5132 | stat.un.b.lsRjtRsvd0 = 0; | |
5133 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
5134 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
5135 | stat.un.b.vendorUnique = 0; | |
858c9f6c JS |
5136 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, |
5137 | NULL); | |
dea3101e | 5138 | } |
c9f8735b | 5139 | return 0; |
dea3101e JB |
5140 | } |
5141 | ||
12265f68 JS |
5142 | /** |
5143 | * lpfc_els_rcv_echo - Process an unsolicited echo iocb | |
5144 | * @vport: pointer to a host virtual N_Port data structure. | |
5145 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5146 | * @ndlp: pointer to a node-list data structure. | |
5147 | * | |
5148 | * Return code | |
5149 | * 0 - Successfully processed echo iocb (currently always return 0) | |
5150 | **/ | |
5151 | static int | |
5152 | lpfc_els_rcv_echo(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, | |
5153 | struct lpfc_nodelist *ndlp) | |
5154 | { | |
5155 | uint8_t *pcmd; | |
5156 | ||
5157 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt); | |
5158 | ||
5159 | /* skip over first word of echo command to find echo data */ | |
5160 | pcmd += sizeof(uint32_t); | |
5161 | ||
5162 | lpfc_els_rsp_echo_acc(vport, pcmd, cmdiocb, ndlp); | |
5163 | return 0; | |
5164 | } | |
5165 | ||
e59058c4 | 5166 | /** |
3621a710 | 5167 | * lpfc_els_rcv_lirr - Process an unsolicited lirr iocb |
e59058c4 JS |
5168 | * @vport: pointer to a host virtual N_Port data structure. |
5169 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5170 | * @ndlp: pointer to a node-list data structure. | |
5171 | * | |
5172 | * This routine processes a Link Incident Report Registration(LIRR) IOCB | |
5173 | * received as an ELS unsolicited event. Currently, this function just invokes | |
5174 | * the lpfc_els_rsp_reject() routine to reject the LIRR IOCB unconditionally. | |
5175 | * | |
5176 | * Return code | |
5177 | * 0 - Successfully processed lirr iocb (currently always return 0) | |
5178 | **/ | |
dea3101e | 5179 | static int |
2e0fef85 JS |
5180 | lpfc_els_rcv_lirr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
5181 | struct lpfc_nodelist *ndlp) | |
7bb3b137 JW |
5182 | { |
5183 | struct ls_rjt stat; | |
5184 | ||
5185 | /* For now, unconditionally reject this command */ | |
5186 | stat.un.b.lsRjtRsvd0 = 0; | |
5187 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
5188 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
5189 | stat.un.b.vendorUnique = 0; | |
858c9f6c | 5190 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); |
7bb3b137 JW |
5191 | return 0; |
5192 | } | |
5193 | ||
5ffc266e JS |
5194 | /** |
5195 | * lpfc_els_rcv_rrq - Process an unsolicited rrq iocb | |
5196 | * @vport: pointer to a host virtual N_Port data structure. | |
5197 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5198 | * @ndlp: pointer to a node-list data structure. | |
5199 | * | |
5200 | * This routine processes a Reinstate Recovery Qualifier (RRQ) IOCB | |
5201 | * received as an ELS unsolicited event. A request to RRQ shall only | |
5202 | * be accepted if the Originator Nx_Port N_Port_ID or the Responder | |
5203 | * Nx_Port N_Port_ID of the target Exchange is the same as the | |
5204 | * N_Port_ID of the Nx_Port that makes the request. If the RRQ is | |
5205 | * not accepted, an LS_RJT with reason code "Unable to perform | |
5206 | * command request" and reason code explanation "Invalid Originator | |
5207 | * S_ID" shall be returned. For now, we just unconditionally accept | |
5208 | * RRQ from the target. | |
5209 | **/ | |
5210 | static void | |
5211 | lpfc_els_rcv_rrq(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, | |
5212 | struct lpfc_nodelist *ndlp) | |
5213 | { | |
5214 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); | |
19ca7609 JS |
5215 | if (vport->phba->sli_rev == LPFC_SLI_REV4) |
5216 | lpfc_els_clear_rrq(vport, cmdiocb, ndlp); | |
5ffc266e JS |
5217 | } |
5218 | ||
12265f68 JS |
5219 | /** |
5220 | * lpfc_els_rsp_rls_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd | |
5221 | * @phba: pointer to lpfc hba data structure. | |
5222 | * @pmb: pointer to the driver internal queue element for mailbox command. | |
5223 | * | |
5224 | * This routine is the completion callback function for the MBX_READ_LNK_STAT | |
5225 | * mailbox command. This callback function is to actually send the Accept | |
5226 | * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It | |
5227 | * collects the link statistics from the completion of the MBX_READ_LNK_STAT | |
5228 | * mailbox command, constructs the RPS response with the link statistics | |
5229 | * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC | |
5230 | * response to the RPS. | |
5231 | * | |
5232 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
5233 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
5234 | * will be stored into the context1 field of the IOCB for the completion | |
5235 | * callback function to the RPS Accept Response ELS IOCB command. | |
5236 | * | |
5237 | **/ | |
5238 | static void | |
5239 | lpfc_els_rsp_rls_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) | |
5240 | { | |
5241 | MAILBOX_t *mb; | |
5242 | IOCB_t *icmd; | |
5243 | struct RLS_RSP *rls_rsp; | |
5244 | uint8_t *pcmd; | |
5245 | struct lpfc_iocbq *elsiocb; | |
5246 | struct lpfc_nodelist *ndlp; | |
7851fe2c JS |
5247 | uint16_t oxid; |
5248 | uint16_t rxid; | |
12265f68 JS |
5249 | uint32_t cmdsize; |
5250 | ||
5251 | mb = &pmb->u.mb; | |
5252 | ||
5253 | ndlp = (struct lpfc_nodelist *) pmb->context2; | |
7851fe2c JS |
5254 | rxid = (uint16_t) ((unsigned long)(pmb->context1) & 0xffff); |
5255 | oxid = (uint16_t) (((unsigned long)(pmb->context1) >> 16) & 0xffff); | |
12265f68 JS |
5256 | pmb->context1 = NULL; |
5257 | pmb->context2 = NULL; | |
5258 | ||
5259 | if (mb->mbxStatus) { | |
5260 | mempool_free(pmb, phba->mbox_mem_pool); | |
5261 | return; | |
5262 | } | |
5263 | ||
5264 | cmdsize = sizeof(struct RLS_RSP) + sizeof(uint32_t); | |
12265f68 JS |
5265 | elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, |
5266 | lpfc_max_els_tries, ndlp, | |
5267 | ndlp->nlp_DID, ELS_CMD_ACC); | |
5268 | ||
5269 | /* Decrement the ndlp reference count from previous mbox command */ | |
5270 | lpfc_nlp_put(ndlp); | |
5271 | ||
37db57e3 JS |
5272 | if (!elsiocb) { |
5273 | mempool_free(pmb, phba->mbox_mem_pool); | |
12265f68 | 5274 | return; |
37db57e3 | 5275 | } |
12265f68 JS |
5276 | |
5277 | icmd = &elsiocb->iocb; | |
7851fe2c JS |
5278 | icmd->ulpContext = rxid; |
5279 | icmd->unsli3.rcvsli3.ox_id = oxid; | |
12265f68 JS |
5280 | |
5281 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
5282 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
5283 | pcmd += sizeof(uint32_t); /* Skip past command */ | |
5284 | rls_rsp = (struct RLS_RSP *)pcmd; | |
5285 | ||
5286 | rls_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt); | |
5287 | rls_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt); | |
5288 | rls_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt); | |
5289 | rls_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt); | |
5290 | rls_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord); | |
5291 | rls_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt); | |
37db57e3 | 5292 | mempool_free(pmb, phba->mbox_mem_pool); |
12265f68 JS |
5293 | /* Xmit ELS RLS ACC response tag <ulpIoTag> */ |
5294 | lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS, | |
5295 | "2874 Xmit ELS RLS ACC response tag x%x xri x%x, " | |
5296 | "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n", | |
5297 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
5298 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
5299 | ndlp->nlp_rpi); | |
5300 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; | |
5301 | phba->fc_stat.elsXmitACC++; | |
5302 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR) | |
5303 | lpfc_els_free_iocb(phba, elsiocb); | |
5304 | } | |
5305 | ||
e59058c4 | 5306 | /** |
3621a710 | 5307 | * lpfc_els_rsp_rps_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd |
e59058c4 JS |
5308 | * @phba: pointer to lpfc hba data structure. |
5309 | * @pmb: pointer to the driver internal queue element for mailbox command. | |
5310 | * | |
5311 | * This routine is the completion callback function for the MBX_READ_LNK_STAT | |
5312 | * mailbox command. This callback function is to actually send the Accept | |
5313 | * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It | |
5314 | * collects the link statistics from the completion of the MBX_READ_LNK_STAT | |
5315 | * mailbox command, constructs the RPS response with the link statistics | |
5316 | * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC | |
5317 | * response to the RPS. | |
5318 | * | |
5319 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
5320 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
5321 | * will be stored into the context1 field of the IOCB for the completion | |
5322 | * callback function to the RPS Accept Response ELS IOCB command. | |
5323 | * | |
5324 | **/ | |
082c0266 | 5325 | static void |
329f9bc7 | 5326 | lpfc_els_rsp_rps_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) |
7bb3b137 | 5327 | { |
7bb3b137 JW |
5328 | MAILBOX_t *mb; |
5329 | IOCB_t *icmd; | |
5330 | RPS_RSP *rps_rsp; | |
5331 | uint8_t *pcmd; | |
5332 | struct lpfc_iocbq *elsiocb; | |
5333 | struct lpfc_nodelist *ndlp; | |
7851fe2c JS |
5334 | uint16_t status; |
5335 | uint16_t oxid; | |
5336 | uint16_t rxid; | |
7bb3b137 JW |
5337 | uint32_t cmdsize; |
5338 | ||
04c68496 | 5339 | mb = &pmb->u.mb; |
7bb3b137 JW |
5340 | |
5341 | ndlp = (struct lpfc_nodelist *) pmb->context2; | |
7851fe2c JS |
5342 | rxid = (uint16_t) ((unsigned long)(pmb->context1) & 0xffff); |
5343 | oxid = (uint16_t) (((unsigned long)(pmb->context1) >> 16) & 0xffff); | |
041976fb RD |
5344 | pmb->context1 = NULL; |
5345 | pmb->context2 = NULL; | |
7bb3b137 JW |
5346 | |
5347 | if (mb->mbxStatus) { | |
329f9bc7 | 5348 | mempool_free(pmb, phba->mbox_mem_pool); |
7bb3b137 JW |
5349 | return; |
5350 | } | |
5351 | ||
5352 | cmdsize = sizeof(RPS_RSP) + sizeof(uint32_t); | |
329f9bc7 | 5353 | mempool_free(pmb, phba->mbox_mem_pool); |
2e0fef85 JS |
5354 | elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, |
5355 | lpfc_max_els_tries, ndlp, | |
5356 | ndlp->nlp_DID, ELS_CMD_ACC); | |
fa4066b6 JS |
5357 | |
5358 | /* Decrement the ndlp reference count from previous mbox command */ | |
329f9bc7 | 5359 | lpfc_nlp_put(ndlp); |
fa4066b6 | 5360 | |
c9f8735b | 5361 | if (!elsiocb) |
7bb3b137 | 5362 | return; |
7bb3b137 JW |
5363 | |
5364 | icmd = &elsiocb->iocb; | |
7851fe2c JS |
5365 | icmd->ulpContext = rxid; |
5366 | icmd->unsli3.rcvsli3.ox_id = oxid; | |
7bb3b137 JW |
5367 | |
5368 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
5369 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 | 5370 | pcmd += sizeof(uint32_t); /* Skip past command */ |
7bb3b137 JW |
5371 | rps_rsp = (RPS_RSP *)pcmd; |
5372 | ||
76a95d75 | 5373 | if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) |
7bb3b137 JW |
5374 | status = 0x10; |
5375 | else | |
5376 | status = 0x8; | |
2e0fef85 | 5377 | if (phba->pport->fc_flag & FC_FABRIC) |
7bb3b137 JW |
5378 | status |= 0x4; |
5379 | ||
5380 | rps_rsp->rsvd1 = 0; | |
09372820 JS |
5381 | rps_rsp->portStatus = cpu_to_be16(status); |
5382 | rps_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt); | |
5383 | rps_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt); | |
5384 | rps_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt); | |
5385 | rps_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt); | |
5386 | rps_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord); | |
5387 | rps_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt); | |
7bb3b137 | 5388 | /* Xmit ELS RPS ACC response tag <ulpIoTag> */ |
e8b62011 JS |
5389 | lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS, |
5390 | "0118 Xmit ELS RPS ACC response tag x%x xri x%x, " | |
5391 | "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n", | |
5392 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
5393 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
5394 | ndlp->nlp_rpi); | |
858c9f6c | 5395 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
7bb3b137 | 5396 | phba->fc_stat.elsXmitACC++; |
3772a991 | 5397 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR) |
7bb3b137 | 5398 | lpfc_els_free_iocb(phba, elsiocb); |
7bb3b137 JW |
5399 | return; |
5400 | } | |
5401 | ||
e59058c4 | 5402 | /** |
12265f68 JS |
5403 | * lpfc_els_rcv_rls - Process an unsolicited rls iocb |
5404 | * @vport: pointer to a host virtual N_Port data structure. | |
5405 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5406 | * @ndlp: pointer to a node-list data structure. | |
5407 | * | |
5408 | * This routine processes Read Port Status (RPL) IOCB received as an | |
5409 | * ELS unsolicited event. It first checks the remote port state. If the | |
5410 | * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE | |
5411 | * state, it invokes the lpfc_els_rsl_reject() routine to send the reject | |
5412 | * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command | |
5413 | * for reading the HBA link statistics. It is for the callback function, | |
5414 | * lpfc_els_rsp_rls_acc(), set to the MBX_READ_LNK_STAT mailbox command | |
5415 | * to actually sending out RPL Accept (ACC) response. | |
5416 | * | |
5417 | * Return codes | |
5418 | * 0 - Successfully processed rls iocb (currently always return 0) | |
5419 | **/ | |
5420 | static int | |
5421 | lpfc_els_rcv_rls(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, | |
5422 | struct lpfc_nodelist *ndlp) | |
5423 | { | |
5424 | struct lpfc_hba *phba = vport->phba; | |
5425 | LPFC_MBOXQ_t *mbox; | |
5426 | struct lpfc_dmabuf *pcmd; | |
5427 | struct ls_rjt stat; | |
5428 | ||
5429 | if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && | |
5430 | (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) | |
5431 | /* reject the unsolicited RPS request and done with it */ | |
5432 | goto reject_out; | |
5433 | ||
5434 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
5435 | ||
5436 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC); | |
5437 | if (mbox) { | |
5438 | lpfc_read_lnk_stat(phba, mbox); | |
7851fe2c JS |
5439 | mbox->context1 = (void *)((unsigned long) |
5440 | ((cmdiocb->iocb.unsli3.rcvsli3.ox_id << 16) | | |
5441 | cmdiocb->iocb.ulpContext)); /* rx_id */ | |
12265f68 JS |
5442 | mbox->context2 = lpfc_nlp_get(ndlp); |
5443 | mbox->vport = vport; | |
5444 | mbox->mbox_cmpl = lpfc_els_rsp_rls_acc; | |
5445 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) | |
5446 | != MBX_NOT_FINISHED) | |
5447 | /* Mbox completion will send ELS Response */ | |
5448 | return 0; | |
5449 | /* Decrement reference count used for the failed mbox | |
5450 | * command. | |
5451 | */ | |
5452 | lpfc_nlp_put(ndlp); | |
5453 | mempool_free(mbox, phba->mbox_mem_pool); | |
5454 | } | |
5455 | reject_out: | |
5456 | /* issue rejection response */ | |
5457 | stat.un.b.lsRjtRsvd0 = 0; | |
5458 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
5459 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
5460 | stat.un.b.vendorUnique = 0; | |
5461 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); | |
5462 | return 0; | |
5463 | } | |
5464 | ||
5465 | /** | |
5466 | * lpfc_els_rcv_rtv - Process an unsolicited rtv iocb | |
5467 | * @vport: pointer to a host virtual N_Port data structure. | |
5468 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5469 | * @ndlp: pointer to a node-list data structure. | |
5470 | * | |
5471 | * This routine processes Read Timout Value (RTV) IOCB received as an | |
5472 | * ELS unsolicited event. It first checks the remote port state. If the | |
5473 | * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE | |
5474 | * state, it invokes the lpfc_els_rsl_reject() routine to send the reject | |
5475 | * response. Otherwise, it sends the Accept(ACC) response to a Read Timeout | |
5476 | * Value (RTV) unsolicited IOCB event. | |
5477 | * | |
5478 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
5479 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
5480 | * will be stored into the context1 field of the IOCB for the completion | |
5481 | * callback function to the RPS Accept Response ELS IOCB command. | |
5482 | * | |
5483 | * Return codes | |
5484 | * 0 - Successfully processed rtv iocb (currently always return 0) | |
5485 | **/ | |
5486 | static int | |
5487 | lpfc_els_rcv_rtv(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, | |
5488 | struct lpfc_nodelist *ndlp) | |
5489 | { | |
5490 | struct lpfc_hba *phba = vport->phba; | |
5491 | struct ls_rjt stat; | |
5492 | struct RTV_RSP *rtv_rsp; | |
5493 | uint8_t *pcmd; | |
5494 | struct lpfc_iocbq *elsiocb; | |
5495 | uint32_t cmdsize; | |
5496 | ||
5497 | ||
5498 | if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && | |
5499 | (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) | |
5500 | /* reject the unsolicited RPS request and done with it */ | |
5501 | goto reject_out; | |
5502 | ||
5503 | cmdsize = sizeof(struct RTV_RSP) + sizeof(uint32_t); | |
5504 | elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, | |
5505 | lpfc_max_els_tries, ndlp, | |
5506 | ndlp->nlp_DID, ELS_CMD_ACC); | |
5507 | ||
5508 | if (!elsiocb) | |
5509 | return 1; | |
5510 | ||
5511 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
5512 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
5513 | pcmd += sizeof(uint32_t); /* Skip past command */ | |
5514 | ||
5515 | /* use the command's xri in the response */ | |
7851fe2c JS |
5516 | elsiocb->iocb.ulpContext = cmdiocb->iocb.ulpContext; /* Xri / rx_id */ |
5517 | elsiocb->iocb.unsli3.rcvsli3.ox_id = cmdiocb->iocb.unsli3.rcvsli3.ox_id; | |
12265f68 JS |
5518 | |
5519 | rtv_rsp = (struct RTV_RSP *)pcmd; | |
5520 | ||
5521 | /* populate RTV payload */ | |
5522 | rtv_rsp->ratov = cpu_to_be32(phba->fc_ratov * 1000); /* report msecs */ | |
5523 | rtv_rsp->edtov = cpu_to_be32(phba->fc_edtov); | |
5524 | bf_set(qtov_edtovres, rtv_rsp, phba->fc_edtovResol ? 1 : 0); | |
5525 | bf_set(qtov_rttov, rtv_rsp, 0); /* Field is for FC ONLY */ | |
5526 | rtv_rsp->qtov = cpu_to_be32(rtv_rsp->qtov); | |
5527 | ||
5528 | /* Xmit ELS RLS ACC response tag <ulpIoTag> */ | |
5529 | lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS, | |
5530 | "2875 Xmit ELS RTV ACC response tag x%x xri x%x, " | |
5531 | "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x, " | |
5532 | "Data: x%x x%x x%x\n", | |
5533 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
5534 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
5535 | ndlp->nlp_rpi, | |
5536 | rtv_rsp->ratov, rtv_rsp->edtov, rtv_rsp->qtov); | |
5537 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; | |
5538 | phba->fc_stat.elsXmitACC++; | |
5539 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR) | |
5540 | lpfc_els_free_iocb(phba, elsiocb); | |
5541 | return 0; | |
5542 | ||
5543 | reject_out: | |
5544 | /* issue rejection response */ | |
5545 | stat.un.b.lsRjtRsvd0 = 0; | |
5546 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
5547 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
5548 | stat.un.b.vendorUnique = 0; | |
5549 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); | |
5550 | return 0; | |
5551 | } | |
5552 | ||
5553 | /* lpfc_els_rcv_rps - Process an unsolicited rps iocb | |
e59058c4 JS |
5554 | * @vport: pointer to a host virtual N_Port data structure. |
5555 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5556 | * @ndlp: pointer to a node-list data structure. | |
5557 | * | |
5558 | * This routine processes Read Port Status (RPS) IOCB received as an | |
5559 | * ELS unsolicited event. It first checks the remote port state. If the | |
5560 | * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE | |
5561 | * state, it invokes the lpfc_els_rsp_reject() routine to send the reject | |
5562 | * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command | |
5563 | * for reading the HBA link statistics. It is for the callback function, | |
5564 | * lpfc_els_rsp_rps_acc(), set to the MBX_READ_LNK_STAT mailbox command | |
5565 | * to actually sending out RPS Accept (ACC) response. | |
5566 | * | |
5567 | * Return codes | |
5568 | * 0 - Successfully processed rps iocb (currently always return 0) | |
5569 | **/ | |
7bb3b137 | 5570 | static int |
2e0fef85 JS |
5571 | lpfc_els_rcv_rps(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
5572 | struct lpfc_nodelist *ndlp) | |
dea3101e | 5573 | { |
2e0fef85 | 5574 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 5575 | uint32_t *lp; |
7bb3b137 JW |
5576 | uint8_t flag; |
5577 | LPFC_MBOXQ_t *mbox; | |
5578 | struct lpfc_dmabuf *pcmd; | |
5579 | RPS *rps; | |
5580 | struct ls_rjt stat; | |
5581 | ||
2fe165b6 | 5582 | if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && |
90160e01 JS |
5583 | (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) |
5584 | /* reject the unsolicited RPS request and done with it */ | |
5585 | goto reject_out; | |
7bb3b137 JW |
5586 | |
5587 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
5588 | lp = (uint32_t *) pcmd->virt; | |
5589 | flag = (be32_to_cpu(*lp++) & 0xf); | |
5590 | rps = (RPS *) lp; | |
5591 | ||
5592 | if ((flag == 0) || | |
5593 | ((flag == 1) && (be32_to_cpu(rps->un.portNum) == 0)) || | |
2e0fef85 | 5594 | ((flag == 2) && (memcmp(&rps->un.portName, &vport->fc_portname, |
92d7f7b0 | 5595 | sizeof(struct lpfc_name)) == 0))) { |
2e0fef85 | 5596 | |
92d7f7b0 JS |
5597 | printk("Fix me....\n"); |
5598 | dump_stack(); | |
2e0fef85 JS |
5599 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC); |
5600 | if (mbox) { | |
7bb3b137 | 5601 | lpfc_read_lnk_stat(phba, mbox); |
7851fe2c JS |
5602 | mbox->context1 = (void *)((unsigned long) |
5603 | ((cmdiocb->iocb.unsli3.rcvsli3.ox_id << 16) | | |
5604 | cmdiocb->iocb.ulpContext)); /* rx_id */ | |
329f9bc7 | 5605 | mbox->context2 = lpfc_nlp_get(ndlp); |
92d7f7b0 | 5606 | mbox->vport = vport; |
7bb3b137 | 5607 | mbox->mbox_cmpl = lpfc_els_rsp_rps_acc; |
fa4066b6 | 5608 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) |
0b727fea | 5609 | != MBX_NOT_FINISHED) |
7bb3b137 JW |
5610 | /* Mbox completion will send ELS Response */ |
5611 | return 0; | |
fa4066b6 JS |
5612 | /* Decrement reference count used for the failed mbox |
5613 | * command. | |
5614 | */ | |
329f9bc7 | 5615 | lpfc_nlp_put(ndlp); |
7bb3b137 JW |
5616 | mempool_free(mbox, phba->mbox_mem_pool); |
5617 | } | |
5618 | } | |
90160e01 JS |
5619 | |
5620 | reject_out: | |
5621 | /* issue rejection response */ | |
7bb3b137 JW |
5622 | stat.un.b.lsRjtRsvd0 = 0; |
5623 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
5624 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
5625 | stat.un.b.vendorUnique = 0; | |
858c9f6c | 5626 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); |
7bb3b137 JW |
5627 | return 0; |
5628 | } | |
5629 | ||
19ca7609 JS |
5630 | /* lpfc_issue_els_rrq - Process an unsolicited rps iocb |
5631 | * @vport: pointer to a host virtual N_Port data structure. | |
5632 | * @ndlp: pointer to a node-list data structure. | |
5633 | * @did: DID of the target. | |
5634 | * @rrq: Pointer to the rrq struct. | |
5635 | * | |
5636 | * Build a ELS RRQ command and send it to the target. If the issue_iocb is | |
5637 | * Successful the the completion handler will clear the RRQ. | |
5638 | * | |
5639 | * Return codes | |
5640 | * 0 - Successfully sent rrq els iocb. | |
5641 | * 1 - Failed to send rrq els iocb. | |
5642 | **/ | |
5643 | static int | |
5644 | lpfc_issue_els_rrq(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, | |
5645 | uint32_t did, struct lpfc_node_rrq *rrq) | |
5646 | { | |
5647 | struct lpfc_hba *phba = vport->phba; | |
5648 | struct RRQ *els_rrq; | |
5649 | IOCB_t *icmd; | |
5650 | struct lpfc_iocbq *elsiocb; | |
5651 | uint8_t *pcmd; | |
5652 | uint16_t cmdsize; | |
5653 | int ret; | |
5654 | ||
5655 | ||
5656 | if (ndlp != rrq->ndlp) | |
5657 | ndlp = rrq->ndlp; | |
5658 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) | |
5659 | return 1; | |
5660 | ||
5661 | /* If ndlp is not NULL, we will bump the reference count on it */ | |
5662 | cmdsize = (sizeof(uint32_t) + sizeof(struct RRQ)); | |
5663 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, did, | |
5664 | ELS_CMD_RRQ); | |
5665 | if (!elsiocb) | |
5666 | return 1; | |
5667 | ||
5668 | icmd = &elsiocb->iocb; | |
5669 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
5670 | ||
5671 | /* For RRQ request, remainder of payload is Exchange IDs */ | |
5672 | *((uint32_t *) (pcmd)) = ELS_CMD_RRQ; | |
5673 | pcmd += sizeof(uint32_t); | |
5674 | els_rrq = (struct RRQ *) pcmd; | |
5675 | ||
ee0f4fe1 | 5676 | bf_set(rrq_oxid, els_rrq, phba->sli4_hba.xri_ids[rrq->xritag]); |
19ca7609 JS |
5677 | bf_set(rrq_rxid, els_rrq, rrq->rxid); |
5678 | bf_set(rrq_did, els_rrq, vport->fc_myDID); | |
5679 | els_rrq->rrq = cpu_to_be32(els_rrq->rrq); | |
5680 | els_rrq->rrq_exchg = cpu_to_be32(els_rrq->rrq_exchg); | |
5681 | ||
5682 | ||
5683 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, | |
5684 | "Issue RRQ: did:x%x", | |
5685 | did, rrq->xritag, rrq->rxid); | |
5686 | elsiocb->context_un.rrq = rrq; | |
5687 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rrq; | |
5688 | ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); | |
5689 | ||
5690 | if (ret == IOCB_ERROR) { | |
5691 | lpfc_els_free_iocb(phba, elsiocb); | |
5692 | return 1; | |
5693 | } | |
5694 | return 0; | |
5695 | } | |
5696 | ||
5697 | /** | |
5698 | * lpfc_send_rrq - Sends ELS RRQ if needed. | |
5699 | * @phba: pointer to lpfc hba data structure. | |
5700 | * @rrq: pointer to the active rrq. | |
5701 | * | |
5702 | * This routine will call the lpfc_issue_els_rrq if the rrq is | |
5703 | * still active for the xri. If this function returns a failure then | |
5704 | * the caller needs to clean up the RRQ by calling lpfc_clr_active_rrq. | |
5705 | * | |
5706 | * Returns 0 Success. | |
5707 | * 1 Failure. | |
5708 | **/ | |
5709 | int | |
5710 | lpfc_send_rrq(struct lpfc_hba *phba, struct lpfc_node_rrq *rrq) | |
5711 | { | |
5712 | struct lpfc_nodelist *ndlp = lpfc_findnode_did(rrq->vport, | |
5713 | rrq->nlp_DID); | |
5714 | if (lpfc_test_rrq_active(phba, ndlp, rrq->xritag)) | |
5715 | return lpfc_issue_els_rrq(rrq->vport, ndlp, | |
5716 | rrq->nlp_DID, rrq); | |
5717 | else | |
5718 | return 1; | |
5719 | } | |
5720 | ||
e59058c4 | 5721 | /** |
3621a710 | 5722 | * lpfc_els_rsp_rpl_acc - Issue an accept rpl els command |
e59058c4 JS |
5723 | * @vport: pointer to a host virtual N_Port data structure. |
5724 | * @cmdsize: size of the ELS command. | |
5725 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
5726 | * @ndlp: pointer to a node-list data structure. | |
5727 | * | |
5728 | * This routine issuees an Accept (ACC) Read Port List (RPL) ELS command. | |
5729 | * It is to be called by the lpfc_els_rcv_rpl() routine to accept the RPL. | |
5730 | * | |
5731 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
5732 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
5733 | * will be stored into the context1 field of the IOCB for the completion | |
5734 | * callback function to the RPL Accept Response ELS command. | |
5735 | * | |
5736 | * Return code | |
5737 | * 0 - Successfully issued ACC RPL ELS command | |
5738 | * 1 - Failed to issue ACC RPL ELS command | |
5739 | **/ | |
082c0266 | 5740 | static int |
2e0fef85 JS |
5741 | lpfc_els_rsp_rpl_acc(struct lpfc_vport *vport, uint16_t cmdsize, |
5742 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) | |
7bb3b137 | 5743 | { |
2e0fef85 JS |
5744 | struct lpfc_hba *phba = vport->phba; |
5745 | IOCB_t *icmd, *oldcmd; | |
7bb3b137 JW |
5746 | RPL_RSP rpl_rsp; |
5747 | struct lpfc_iocbq *elsiocb; | |
7bb3b137 | 5748 | uint8_t *pcmd; |
dea3101e | 5749 | |
2e0fef85 JS |
5750 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
5751 | ndlp->nlp_DID, ELS_CMD_ACC); | |
7bb3b137 | 5752 | |
488d1469 | 5753 | if (!elsiocb) |
7bb3b137 | 5754 | return 1; |
488d1469 | 5755 | |
7bb3b137 JW |
5756 | icmd = &elsiocb->iocb; |
5757 | oldcmd = &oldiocb->iocb; | |
7851fe2c JS |
5758 | icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ |
5759 | icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id; | |
7bb3b137 JW |
5760 | |
5761 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
5762 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 | 5763 | pcmd += sizeof(uint16_t); |
7bb3b137 JW |
5764 | *((uint16_t *)(pcmd)) = be16_to_cpu(cmdsize); |
5765 | pcmd += sizeof(uint16_t); | |
5766 | ||
5767 | /* Setup the RPL ACC payload */ | |
5768 | rpl_rsp.listLen = be32_to_cpu(1); | |
5769 | rpl_rsp.index = 0; | |
5770 | rpl_rsp.port_num_blk.portNum = 0; | |
2e0fef85 JS |
5771 | rpl_rsp.port_num_blk.portID = be32_to_cpu(vport->fc_myDID); |
5772 | memcpy(&rpl_rsp.port_num_blk.portName, &vport->fc_portname, | |
7bb3b137 | 5773 | sizeof(struct lpfc_name)); |
7bb3b137 | 5774 | memcpy(pcmd, &rpl_rsp, cmdsize - sizeof(uint32_t)); |
7bb3b137 | 5775 | /* Xmit ELS RPL ACC response tag <ulpIoTag> */ |
e8b62011 JS |
5776 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
5777 | "0120 Xmit ELS RPL ACC response tag x%x " | |
5778 | "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, " | |
5779 | "rpi x%x\n", | |
5780 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
5781 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
5782 | ndlp->nlp_rpi); | |
858c9f6c | 5783 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
7bb3b137 | 5784 | phba->fc_stat.elsXmitACC++; |
3772a991 JS |
5785 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
5786 | IOCB_ERROR) { | |
7bb3b137 JW |
5787 | lpfc_els_free_iocb(phba, elsiocb); |
5788 | return 1; | |
5789 | } | |
5790 | return 0; | |
5791 | } | |
5792 | ||
e59058c4 | 5793 | /** |
3621a710 | 5794 | * lpfc_els_rcv_rpl - Process an unsolicited rpl iocb |
e59058c4 JS |
5795 | * @vport: pointer to a host virtual N_Port data structure. |
5796 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5797 | * @ndlp: pointer to a node-list data structure. | |
5798 | * | |
5799 | * This routine processes Read Port List (RPL) IOCB received as an ELS | |
5800 | * unsolicited event. It first checks the remote port state. If the remote | |
5801 | * port is not in NLP_STE_UNMAPPED_NODE and NLP_STE_MAPPED_NODE states, it | |
5802 | * invokes the lpfc_els_rsp_reject() routine to send reject response. | |
5803 | * Otherwise, this routine then invokes the lpfc_els_rsp_rpl_acc() routine | |
5804 | * to accept the RPL. | |
5805 | * | |
5806 | * Return code | |
5807 | * 0 - Successfully processed rpl iocb (currently always return 0) | |
5808 | **/ | |
7bb3b137 | 5809 | static int |
2e0fef85 JS |
5810 | lpfc_els_rcv_rpl(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
5811 | struct lpfc_nodelist *ndlp) | |
7bb3b137 JW |
5812 | { |
5813 | struct lpfc_dmabuf *pcmd; | |
5814 | uint32_t *lp; | |
5815 | uint32_t maxsize; | |
5816 | uint16_t cmdsize; | |
5817 | RPL *rpl; | |
5818 | struct ls_rjt stat; | |
5819 | ||
2fe165b6 JW |
5820 | if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && |
5821 | (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) { | |
90160e01 | 5822 | /* issue rejection response */ |
7bb3b137 JW |
5823 | stat.un.b.lsRjtRsvd0 = 0; |
5824 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
5825 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
5826 | stat.un.b.vendorUnique = 0; | |
858c9f6c JS |
5827 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, |
5828 | NULL); | |
90160e01 JS |
5829 | /* rejected the unsolicited RPL request and done with it */ |
5830 | return 0; | |
7bb3b137 JW |
5831 | } |
5832 | ||
dea3101e JB |
5833 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; |
5834 | lp = (uint32_t *) pcmd->virt; | |
7bb3b137 | 5835 | rpl = (RPL *) (lp + 1); |
7bb3b137 | 5836 | maxsize = be32_to_cpu(rpl->maxsize); |
dea3101e | 5837 | |
7bb3b137 JW |
5838 | /* We support only one port */ |
5839 | if ((rpl->index == 0) && | |
5840 | ((maxsize == 0) || | |
5841 | ((maxsize * sizeof(uint32_t)) >= sizeof(RPL_RSP)))) { | |
5842 | cmdsize = sizeof(uint32_t) + sizeof(RPL_RSP); | |
2fe165b6 | 5843 | } else { |
7bb3b137 JW |
5844 | cmdsize = sizeof(uint32_t) + maxsize * sizeof(uint32_t); |
5845 | } | |
2e0fef85 | 5846 | lpfc_els_rsp_rpl_acc(vport, cmdsize, cmdiocb, ndlp); |
dea3101e JB |
5847 | |
5848 | return 0; | |
5849 | } | |
5850 | ||
e59058c4 | 5851 | /** |
3621a710 | 5852 | * lpfc_els_rcv_farp - Process an unsolicited farp request els command |
e59058c4 JS |
5853 | * @vport: pointer to a virtual N_Port data structure. |
5854 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5855 | * @ndlp: pointer to a node-list data structure. | |
5856 | * | |
5857 | * This routine processes Fibre Channel Address Resolution Protocol | |
5858 | * (FARP) Request IOCB received as an ELS unsolicited event. Currently, | |
5859 | * the lpfc driver only supports matching on WWPN or WWNN for FARP. As such, | |
5860 | * FARP_MATCH_PORT flag and FARP_MATCH_NODE flag are checked against the | |
5861 | * Match Flag in the FARP request IOCB: if FARP_MATCH_PORT flag is set, the | |
5862 | * remote PortName is compared against the FC PortName stored in the @vport | |
5863 | * data structure; if FARP_MATCH_NODE flag is set, the remote NodeName is | |
5864 | * compared against the FC NodeName stored in the @vport data structure. | |
5865 | * If any of these matches and the FARP_REQUEST_FARPR flag is set in the | |
5866 | * FARP request IOCB Response Flag, the lpfc_issue_els_farpr() routine is | |
5867 | * invoked to send out FARP Response to the remote node. Before sending the | |
5868 | * FARP Response, however, the FARP_REQUEST_PLOGI flag is check in the FARP | |
5869 | * request IOCB Response Flag and, if it is set, the lpfc_issue_els_plogi() | |
5870 | * routine is invoked to log into the remote port first. | |
5871 | * | |
5872 | * Return code | |
5873 | * 0 - Either the FARP Match Mode not supported or successfully processed | |
5874 | **/ | |
dea3101e | 5875 | static int |
2e0fef85 JS |
5876 | lpfc_els_rcv_farp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
5877 | struct lpfc_nodelist *ndlp) | |
dea3101e JB |
5878 | { |
5879 | struct lpfc_dmabuf *pcmd; | |
5880 | uint32_t *lp; | |
5881 | IOCB_t *icmd; | |
5882 | FARP *fp; | |
5883 | uint32_t cmd, cnt, did; | |
5884 | ||
5885 | icmd = &cmdiocb->iocb; | |
5886 | did = icmd->un.elsreq64.remoteID; | |
5887 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
5888 | lp = (uint32_t *) pcmd->virt; | |
5889 | ||
5890 | cmd = *lp++; | |
5891 | fp = (FARP *) lp; | |
dea3101e | 5892 | /* FARP-REQ received from DID <did> */ |
e8b62011 JS |
5893 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
5894 | "0601 FARP-REQ received from DID x%x\n", did); | |
dea3101e JB |
5895 | /* We will only support match on WWPN or WWNN */ |
5896 | if (fp->Mflags & ~(FARP_MATCH_NODE | FARP_MATCH_PORT)) { | |
c9f8735b | 5897 | return 0; |
dea3101e JB |
5898 | } |
5899 | ||
5900 | cnt = 0; | |
5901 | /* If this FARP command is searching for my portname */ | |
5902 | if (fp->Mflags & FARP_MATCH_PORT) { | |
2e0fef85 | 5903 | if (memcmp(&fp->RportName, &vport->fc_portname, |
92d7f7b0 | 5904 | sizeof(struct lpfc_name)) == 0) |
dea3101e JB |
5905 | cnt = 1; |
5906 | } | |
5907 | ||
5908 | /* If this FARP command is searching for my nodename */ | |
5909 | if (fp->Mflags & FARP_MATCH_NODE) { | |
2e0fef85 | 5910 | if (memcmp(&fp->RnodeName, &vport->fc_nodename, |
92d7f7b0 | 5911 | sizeof(struct lpfc_name)) == 0) |
dea3101e JB |
5912 | cnt = 1; |
5913 | } | |
5914 | ||
5915 | if (cnt) { | |
5916 | if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) || | |
5917 | (ndlp->nlp_state == NLP_STE_MAPPED_NODE)) { | |
5918 | /* Log back into the node before sending the FARP. */ | |
5919 | if (fp->Rflags & FARP_REQUEST_PLOGI) { | |
5024ab17 | 5920 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 5921 | lpfc_nlp_set_state(vport, ndlp, |
de0c5b32 | 5922 | NLP_STE_PLOGI_ISSUE); |
2e0fef85 | 5923 | lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); |
dea3101e JB |
5924 | } |
5925 | ||
5926 | /* Send a FARP response to that node */ | |
2e0fef85 JS |
5927 | if (fp->Rflags & FARP_REQUEST_FARPR) |
5928 | lpfc_issue_els_farpr(vport, did, 0); | |
dea3101e JB |
5929 | } |
5930 | } | |
c9f8735b | 5931 | return 0; |
dea3101e JB |
5932 | } |
5933 | ||
e59058c4 | 5934 | /** |
3621a710 | 5935 | * lpfc_els_rcv_farpr - Process an unsolicited farp response iocb |
e59058c4 JS |
5936 | * @vport: pointer to a host virtual N_Port data structure. |
5937 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5938 | * @ndlp: pointer to a node-list data structure. | |
5939 | * | |
5940 | * This routine processes Fibre Channel Address Resolution Protocol | |
5941 | * Response (FARPR) IOCB received as an ELS unsolicited event. It simply | |
5942 | * invokes the lpfc_els_rsp_acc() routine to the remote node to accept | |
5943 | * the FARP response request. | |
5944 | * | |
5945 | * Return code | |
5946 | * 0 - Successfully processed FARPR IOCB (currently always return 0) | |
5947 | **/ | |
dea3101e | 5948 | static int |
2e0fef85 JS |
5949 | lpfc_els_rcv_farpr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
5950 | struct lpfc_nodelist *ndlp) | |
dea3101e JB |
5951 | { |
5952 | struct lpfc_dmabuf *pcmd; | |
5953 | uint32_t *lp; | |
5954 | IOCB_t *icmd; | |
5955 | uint32_t cmd, did; | |
5956 | ||
5957 | icmd = &cmdiocb->iocb; | |
5958 | did = icmd->un.elsreq64.remoteID; | |
5959 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
5960 | lp = (uint32_t *) pcmd->virt; | |
5961 | ||
5962 | cmd = *lp++; | |
5963 | /* FARP-RSP received from DID <did> */ | |
e8b62011 JS |
5964 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
5965 | "0600 FARP-RSP received from DID x%x\n", did); | |
dea3101e | 5966 | /* ACCEPT the Farp resp request */ |
51ef4c26 | 5967 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
dea3101e JB |
5968 | |
5969 | return 0; | |
5970 | } | |
5971 | ||
e59058c4 | 5972 | /** |
3621a710 | 5973 | * lpfc_els_rcv_fan - Process an unsolicited fan iocb command |
e59058c4 JS |
5974 | * @vport: pointer to a host virtual N_Port data structure. |
5975 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5976 | * @fan_ndlp: pointer to a node-list data structure. | |
5977 | * | |
5978 | * This routine processes a Fabric Address Notification (FAN) IOCB | |
5979 | * command received as an ELS unsolicited event. The FAN ELS command will | |
5980 | * only be processed on a physical port (i.e., the @vport represents the | |
5981 | * physical port). The fabric NodeName and PortName from the FAN IOCB are | |
5982 | * compared against those in the phba data structure. If any of those is | |
5983 | * different, the lpfc_initial_flogi() routine is invoked to initialize | |
5984 | * Fabric Login (FLOGI) to the fabric to start the discover over. Otherwise, | |
5985 | * if both of those are identical, the lpfc_issue_fabric_reglogin() routine | |
5986 | * is invoked to register login to the fabric. | |
5987 | * | |
5988 | * Return code | |
5989 | * 0 - Successfully processed fan iocb (currently always return 0). | |
5990 | **/ | |
dea3101e | 5991 | static int |
2e0fef85 JS |
5992 | lpfc_els_rcv_fan(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
5993 | struct lpfc_nodelist *fan_ndlp) | |
dea3101e | 5994 | { |
0d2b6b83 | 5995 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 5996 | uint32_t *lp; |
5024ab17 | 5997 | FAN *fp; |
dea3101e | 5998 | |
0d2b6b83 JS |
5999 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0265 FAN received\n"); |
6000 | lp = (uint32_t *)((struct lpfc_dmabuf *)cmdiocb->context2)->virt; | |
6001 | fp = (FAN *) ++lp; | |
5024ab17 | 6002 | /* FAN received; Fan does not have a reply sequence */ |
0d2b6b83 JS |
6003 | if ((vport == phba->pport) && |
6004 | (vport->port_state == LPFC_LOCAL_CFG_LINK)) { | |
5024ab17 | 6005 | if ((memcmp(&phba->fc_fabparam.nodeName, &fp->FnodeName, |
0d2b6b83 | 6006 | sizeof(struct lpfc_name))) || |
5024ab17 | 6007 | (memcmp(&phba->fc_fabparam.portName, &fp->FportName, |
0d2b6b83 JS |
6008 | sizeof(struct lpfc_name)))) { |
6009 | /* This port has switched fabrics. FLOGI is required */ | |
76a95d75 | 6010 | lpfc_issue_init_vfi(vport); |
0d2b6b83 JS |
6011 | } else { |
6012 | /* FAN verified - skip FLOGI */ | |
6013 | vport->fc_myDID = vport->fc_prevDID; | |
6fb120a7 JS |
6014 | if (phba->sli_rev < LPFC_SLI_REV4) |
6015 | lpfc_issue_fabric_reglogin(vport); | |
1b51197d JS |
6016 | else { |
6017 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
6018 | "3138 Need register VFI: (x%x/%x)\n", | |
6019 | vport->fc_prevDID, vport->fc_myDID); | |
6fb120a7 | 6020 | lpfc_issue_reg_vfi(vport); |
1b51197d | 6021 | } |
5024ab17 | 6022 | } |
dea3101e | 6023 | } |
c9f8735b | 6024 | return 0; |
dea3101e JB |
6025 | } |
6026 | ||
e59058c4 | 6027 | /** |
3621a710 | 6028 | * lpfc_els_timeout - Handler funciton to the els timer |
e59058c4 JS |
6029 | * @ptr: holder for the timer function associated data. |
6030 | * | |
6031 | * This routine is invoked by the ELS timer after timeout. It posts the ELS | |
6032 | * timer timeout event by setting the WORKER_ELS_TMO bit to the work port | |
6033 | * event bitmap and then invokes the lpfc_worker_wake_up() routine to wake | |
6034 | * up the worker thread. It is for the worker thread to invoke the routine | |
6035 | * lpfc_els_timeout_handler() to work on the posted event WORKER_ELS_TMO. | |
6036 | **/ | |
dea3101e JB |
6037 | void |
6038 | lpfc_els_timeout(unsigned long ptr) | |
6039 | { | |
2e0fef85 JS |
6040 | struct lpfc_vport *vport = (struct lpfc_vport *) ptr; |
6041 | struct lpfc_hba *phba = vport->phba; | |
5e9d9b82 | 6042 | uint32_t tmo_posted; |
dea3101e JB |
6043 | unsigned long iflag; |
6044 | ||
2e0fef85 | 6045 | spin_lock_irqsave(&vport->work_port_lock, iflag); |
5e9d9b82 JS |
6046 | tmo_posted = vport->work_port_events & WORKER_ELS_TMO; |
6047 | if (!tmo_posted) | |
2e0fef85 | 6048 | vport->work_port_events |= WORKER_ELS_TMO; |
5e9d9b82 | 6049 | spin_unlock_irqrestore(&vport->work_port_lock, iflag); |
92d7f7b0 | 6050 | |
5e9d9b82 JS |
6051 | if (!tmo_posted) |
6052 | lpfc_worker_wake_up(phba); | |
dea3101e JB |
6053 | return; |
6054 | } | |
6055 | ||
2a9bf3d0 | 6056 | |
e59058c4 | 6057 | /** |
3621a710 | 6058 | * lpfc_els_timeout_handler - Process an els timeout event |
e59058c4 JS |
6059 | * @vport: pointer to a virtual N_Port data structure. |
6060 | * | |
6061 | * This routine is the actual handler function that processes an ELS timeout | |
6062 | * event. It walks the ELS ring to get and abort all the IOCBs (except the | |
6063 | * ABORT/CLOSE/FARP/FARPR/FDISC), which are associated with the @vport by | |
6064 | * invoking the lpfc_sli_issue_abort_iotag() routine. | |
6065 | **/ | |
dea3101e | 6066 | void |
2e0fef85 | 6067 | lpfc_els_timeout_handler(struct lpfc_vport *vport) |
dea3101e | 6068 | { |
2e0fef85 | 6069 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
6070 | struct lpfc_sli_ring *pring; |
6071 | struct lpfc_iocbq *tmp_iocb, *piocb; | |
6072 | IOCB_t *cmd = NULL; | |
6073 | struct lpfc_dmabuf *pcmd; | |
2e0fef85 | 6074 | uint32_t els_command = 0; |
dea3101e | 6075 | uint32_t timeout; |
2e0fef85 | 6076 | uint32_t remote_ID = 0xffffffff; |
2a9bf3d0 JS |
6077 | LIST_HEAD(txcmplq_completions); |
6078 | LIST_HEAD(abort_list); | |
6079 | ||
dea3101e | 6080 | |
dea3101e JB |
6081 | timeout = (uint32_t)(phba->fc_ratov << 1); |
6082 | ||
6083 | pring = &phba->sli.ring[LPFC_ELS_RING]; | |
dea3101e | 6084 | |
2a9bf3d0 JS |
6085 | spin_lock_irq(&phba->hbalock); |
6086 | list_splice_init(&pring->txcmplq, &txcmplq_completions); | |
6087 | spin_unlock_irq(&phba->hbalock); | |
6088 | ||
6089 | list_for_each_entry_safe(piocb, tmp_iocb, &txcmplq_completions, list) { | |
dea3101e JB |
6090 | cmd = &piocb->iocb; |
6091 | ||
2e0fef85 JS |
6092 | if ((piocb->iocb_flag & LPFC_IO_LIBDFC) != 0 || |
6093 | piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN || | |
6094 | piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN) | |
dea3101e | 6095 | continue; |
2e0fef85 JS |
6096 | |
6097 | if (piocb->vport != vport) | |
6098 | continue; | |
6099 | ||
dea3101e | 6100 | pcmd = (struct lpfc_dmabuf *) piocb->context2; |
2e0fef85 JS |
6101 | if (pcmd) |
6102 | els_command = *(uint32_t *) (pcmd->virt); | |
dea3101e | 6103 | |
92d7f7b0 JS |
6104 | if (els_command == ELS_CMD_FARP || |
6105 | els_command == ELS_CMD_FARPR || | |
6106 | els_command == ELS_CMD_FDISC) | |
6107 | continue; | |
6108 | ||
dea3101e | 6109 | if (piocb->drvrTimeout > 0) { |
92d7f7b0 | 6110 | if (piocb->drvrTimeout >= timeout) |
dea3101e | 6111 | piocb->drvrTimeout -= timeout; |
92d7f7b0 | 6112 | else |
dea3101e | 6113 | piocb->drvrTimeout = 0; |
dea3101e JB |
6114 | continue; |
6115 | } | |
6116 | ||
2e0fef85 JS |
6117 | remote_ID = 0xffffffff; |
6118 | if (cmd->ulpCommand != CMD_GEN_REQUEST64_CR) | |
dea3101e | 6119 | remote_ID = cmd->un.elsreq64.remoteID; |
2e0fef85 JS |
6120 | else { |
6121 | struct lpfc_nodelist *ndlp; | |
6122 | ndlp = __lpfc_findnode_rpi(vport, cmd->ulpContext); | |
58da1ffb | 6123 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) |
2e0fef85 | 6124 | remote_ID = ndlp->nlp_DID; |
dea3101e | 6125 | } |
2a9bf3d0 JS |
6126 | list_add_tail(&piocb->dlist, &abort_list); |
6127 | } | |
6128 | spin_lock_irq(&phba->hbalock); | |
6129 | list_splice(&txcmplq_completions, &pring->txcmplq); | |
6130 | spin_unlock_irq(&phba->hbalock); | |
6131 | ||
6132 | list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) { | |
e8b62011 | 6133 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
2a9bf3d0 JS |
6134 | "0127 ELS timeout Data: x%x x%x x%x " |
6135 | "x%x\n", els_command, | |
6136 | remote_ID, cmd->ulpCommand, cmd->ulpIoTag); | |
6137 | spin_lock_irq(&phba->hbalock); | |
6138 | list_del_init(&piocb->dlist); | |
07951076 | 6139 | lpfc_sli_issue_abort_iotag(phba, pring, piocb); |
2a9bf3d0 | 6140 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 6141 | } |
5a0e326d | 6142 | |
2e0fef85 JS |
6143 | if (phba->sli.ring[LPFC_ELS_RING].txcmplq_cnt) |
6144 | mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout); | |
dea3101e JB |
6145 | } |
6146 | ||
e59058c4 | 6147 | /** |
3621a710 | 6148 | * lpfc_els_flush_cmd - Clean up the outstanding els commands to a vport |
e59058c4 JS |
6149 | * @vport: pointer to a host virtual N_Port data structure. |
6150 | * | |
6151 | * This routine is used to clean up all the outstanding ELS commands on a | |
6152 | * @vport. It first aborts the @vport by invoking lpfc_fabric_abort_vport() | |
6153 | * routine. After that, it walks the ELS transmit queue to remove all the | |
6154 | * IOCBs with the @vport other than the QUE_RING and ABORT/CLOSE IOCBs. For | |
6155 | * the IOCBs with a non-NULL completion callback function, the callback | |
6156 | * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and | |
6157 | * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs with a NULL completion | |
6158 | * callback function, the IOCB will simply be released. Finally, it walks | |
6159 | * the ELS transmit completion queue to issue an abort IOCB to any transmit | |
6160 | * completion queue IOCB that is associated with the @vport and is not | |
6161 | * an IOCB from libdfc (i.e., the management plane IOCBs that are not | |
6162 | * part of the discovery state machine) out to HBA by invoking the | |
6163 | * lpfc_sli_issue_abort_iotag() routine. Note that this function issues the | |
6164 | * abort IOCB to any transmit completion queueed IOCB, it does not guarantee | |
6165 | * the IOCBs are aborted when this function returns. | |
6166 | **/ | |
dea3101e | 6167 | void |
2e0fef85 | 6168 | lpfc_els_flush_cmd(struct lpfc_vport *vport) |
dea3101e | 6169 | { |
2534ba75 | 6170 | LIST_HEAD(completions); |
2e0fef85 | 6171 | struct lpfc_hba *phba = vport->phba; |
329f9bc7 | 6172 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; |
dea3101e JB |
6173 | struct lpfc_iocbq *tmp_iocb, *piocb; |
6174 | IOCB_t *cmd = NULL; | |
92d7f7b0 JS |
6175 | |
6176 | lpfc_fabric_abort_vport(vport); | |
dea3101e | 6177 | |
2e0fef85 | 6178 | spin_lock_irq(&phba->hbalock); |
dea3101e JB |
6179 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) { |
6180 | cmd = &piocb->iocb; | |
6181 | ||
6182 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) { | |
6183 | continue; | |
6184 | } | |
6185 | ||
6186 | /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */ | |
329f9bc7 JS |
6187 | if (cmd->ulpCommand == CMD_QUE_RING_BUF_CN || |
6188 | cmd->ulpCommand == CMD_QUE_RING_BUF64_CN || | |
6189 | cmd->ulpCommand == CMD_CLOSE_XRI_CN || | |
6190 | cmd->ulpCommand == CMD_ABORT_XRI_CN) | |
dea3101e | 6191 | continue; |
dea3101e | 6192 | |
2e0fef85 JS |
6193 | if (piocb->vport != vport) |
6194 | continue; | |
6195 | ||
2534ba75 | 6196 | list_move_tail(&piocb->list, &completions); |
1dcb58e5 | 6197 | pring->txq_cnt--; |
dea3101e JB |
6198 | } |
6199 | ||
6200 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { | |
dea3101e JB |
6201 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) { |
6202 | continue; | |
6203 | } | |
dea3101e | 6204 | |
2e0fef85 JS |
6205 | if (piocb->vport != vport) |
6206 | continue; | |
6207 | ||
07951076 | 6208 | lpfc_sli_issue_abort_iotag(phba, pring, piocb); |
dea3101e | 6209 | } |
2e0fef85 | 6210 | spin_unlock_irq(&phba->hbalock); |
2534ba75 | 6211 | |
a257bf90 JS |
6212 | /* Cancell all the IOCBs from the completions list */ |
6213 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
6214 | IOERR_SLI_ABORTED); | |
2534ba75 | 6215 | |
dea3101e JB |
6216 | return; |
6217 | } | |
6218 | ||
e59058c4 | 6219 | /** |
3621a710 | 6220 | * lpfc_els_flush_all_cmd - Clean up all the outstanding els commands to a HBA |
e59058c4 JS |
6221 | * @phba: pointer to lpfc hba data structure. |
6222 | * | |
6223 | * This routine is used to clean up all the outstanding ELS commands on a | |
6224 | * @phba. It first aborts the @phba by invoking the lpfc_fabric_abort_hba() | |
6225 | * routine. After that, it walks the ELS transmit queue to remove all the | |
6226 | * IOCBs to the @phba other than the QUE_RING and ABORT/CLOSE IOCBs. For | |
6227 | * the IOCBs with the completion callback function associated, the callback | |
6228 | * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and | |
6229 | * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs without the completion | |
6230 | * callback function associated, the IOCB will simply be released. Finally, | |
6231 | * it walks the ELS transmit completion queue to issue an abort IOCB to any | |
6232 | * transmit completion queue IOCB that is not an IOCB from libdfc (i.e., the | |
6233 | * management plane IOCBs that are not part of the discovery state machine) | |
6234 | * out to HBA by invoking the lpfc_sli_issue_abort_iotag() routine. | |
6235 | **/ | |
549e55cd JS |
6236 | void |
6237 | lpfc_els_flush_all_cmd(struct lpfc_hba *phba) | |
6238 | { | |
6239 | LIST_HEAD(completions); | |
6240 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; | |
6241 | struct lpfc_iocbq *tmp_iocb, *piocb; | |
6242 | IOCB_t *cmd = NULL; | |
6243 | ||
6244 | lpfc_fabric_abort_hba(phba); | |
6245 | spin_lock_irq(&phba->hbalock); | |
6246 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) { | |
6247 | cmd = &piocb->iocb; | |
6248 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) | |
6249 | continue; | |
6250 | /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */ | |
6251 | if (cmd->ulpCommand == CMD_QUE_RING_BUF_CN || | |
6252 | cmd->ulpCommand == CMD_QUE_RING_BUF64_CN || | |
6253 | cmd->ulpCommand == CMD_CLOSE_XRI_CN || | |
6254 | cmd->ulpCommand == CMD_ABORT_XRI_CN) | |
6255 | continue; | |
6256 | list_move_tail(&piocb->list, &completions); | |
6257 | pring->txq_cnt--; | |
6258 | } | |
6259 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { | |
6260 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) | |
6261 | continue; | |
6262 | lpfc_sli_issue_abort_iotag(phba, pring, piocb); | |
6263 | } | |
6264 | spin_unlock_irq(&phba->hbalock); | |
a257bf90 JS |
6265 | |
6266 | /* Cancel all the IOCBs from the completions list */ | |
6267 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
6268 | IOERR_SLI_ABORTED); | |
6269 | ||
549e55cd JS |
6270 | return; |
6271 | } | |
6272 | ||
ea2151b4 | 6273 | /** |
3621a710 | 6274 | * lpfc_send_els_failure_event - Posts an ELS command failure event |
ea2151b4 JS |
6275 | * @phba: Pointer to hba context object. |
6276 | * @cmdiocbp: Pointer to command iocb which reported error. | |
6277 | * @rspiocbp: Pointer to response iocb which reported error. | |
6278 | * | |
6279 | * This function sends an event when there is an ELS command | |
6280 | * failure. | |
6281 | **/ | |
6282 | void | |
6283 | lpfc_send_els_failure_event(struct lpfc_hba *phba, | |
6284 | struct lpfc_iocbq *cmdiocbp, | |
6285 | struct lpfc_iocbq *rspiocbp) | |
6286 | { | |
6287 | struct lpfc_vport *vport = cmdiocbp->vport; | |
6288 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
6289 | struct lpfc_lsrjt_event lsrjt_event; | |
6290 | struct lpfc_fabric_event_header fabric_event; | |
6291 | struct ls_rjt stat; | |
6292 | struct lpfc_nodelist *ndlp; | |
6293 | uint32_t *pcmd; | |
6294 | ||
6295 | ndlp = cmdiocbp->context1; | |
6296 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) | |
6297 | return; | |
6298 | ||
6299 | if (rspiocbp->iocb.ulpStatus == IOSTAT_LS_RJT) { | |
6300 | lsrjt_event.header.event_type = FC_REG_ELS_EVENT; | |
6301 | lsrjt_event.header.subcategory = LPFC_EVENT_LSRJT_RCV; | |
6302 | memcpy(lsrjt_event.header.wwpn, &ndlp->nlp_portname, | |
6303 | sizeof(struct lpfc_name)); | |
6304 | memcpy(lsrjt_event.header.wwnn, &ndlp->nlp_nodename, | |
6305 | sizeof(struct lpfc_name)); | |
6306 | pcmd = (uint32_t *) (((struct lpfc_dmabuf *) | |
6307 | cmdiocbp->context2)->virt); | |
49198b37 | 6308 | lsrjt_event.command = (pcmd != NULL) ? *pcmd : 0; |
ea2151b4 JS |
6309 | stat.un.lsRjtError = be32_to_cpu(rspiocbp->iocb.un.ulpWord[4]); |
6310 | lsrjt_event.reason_code = stat.un.b.lsRjtRsnCode; | |
6311 | lsrjt_event.explanation = stat.un.b.lsRjtRsnCodeExp; | |
6312 | fc_host_post_vendor_event(shost, | |
6313 | fc_get_event_number(), | |
6314 | sizeof(lsrjt_event), | |
6315 | (char *)&lsrjt_event, | |
ddcc50f0 | 6316 | LPFC_NL_VENDOR_ID); |
ea2151b4 JS |
6317 | return; |
6318 | } | |
6319 | if ((rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY) || | |
6320 | (rspiocbp->iocb.ulpStatus == IOSTAT_FABRIC_BSY)) { | |
6321 | fabric_event.event_type = FC_REG_FABRIC_EVENT; | |
6322 | if (rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY) | |
6323 | fabric_event.subcategory = LPFC_EVENT_PORT_BUSY; | |
6324 | else | |
6325 | fabric_event.subcategory = LPFC_EVENT_FABRIC_BUSY; | |
6326 | memcpy(fabric_event.wwpn, &ndlp->nlp_portname, | |
6327 | sizeof(struct lpfc_name)); | |
6328 | memcpy(fabric_event.wwnn, &ndlp->nlp_nodename, | |
6329 | sizeof(struct lpfc_name)); | |
6330 | fc_host_post_vendor_event(shost, | |
6331 | fc_get_event_number(), | |
6332 | sizeof(fabric_event), | |
6333 | (char *)&fabric_event, | |
ddcc50f0 | 6334 | LPFC_NL_VENDOR_ID); |
ea2151b4 JS |
6335 | return; |
6336 | } | |
6337 | ||
6338 | } | |
6339 | ||
6340 | /** | |
3621a710 | 6341 | * lpfc_send_els_event - Posts unsolicited els event |
ea2151b4 JS |
6342 | * @vport: Pointer to vport object. |
6343 | * @ndlp: Pointer FC node object. | |
6344 | * @cmd: ELS command code. | |
6345 | * | |
6346 | * This function posts an event when there is an incoming | |
6347 | * unsolicited ELS command. | |
6348 | **/ | |
6349 | static void | |
6350 | lpfc_send_els_event(struct lpfc_vport *vport, | |
6351 | struct lpfc_nodelist *ndlp, | |
ddcc50f0 | 6352 | uint32_t *payload) |
ea2151b4 | 6353 | { |
ddcc50f0 JS |
6354 | struct lpfc_els_event_header *els_data = NULL; |
6355 | struct lpfc_logo_event *logo_data = NULL; | |
ea2151b4 JS |
6356 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
6357 | ||
ddcc50f0 JS |
6358 | if (*payload == ELS_CMD_LOGO) { |
6359 | logo_data = kmalloc(sizeof(struct lpfc_logo_event), GFP_KERNEL); | |
6360 | if (!logo_data) { | |
6361 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
6362 | "0148 Failed to allocate memory " | |
6363 | "for LOGO event\n"); | |
6364 | return; | |
6365 | } | |
6366 | els_data = &logo_data->header; | |
6367 | } else { | |
6368 | els_data = kmalloc(sizeof(struct lpfc_els_event_header), | |
6369 | GFP_KERNEL); | |
6370 | if (!els_data) { | |
6371 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
6372 | "0149 Failed to allocate memory " | |
6373 | "for ELS event\n"); | |
6374 | return; | |
6375 | } | |
6376 | } | |
6377 | els_data->event_type = FC_REG_ELS_EVENT; | |
6378 | switch (*payload) { | |
ea2151b4 | 6379 | case ELS_CMD_PLOGI: |
ddcc50f0 | 6380 | els_data->subcategory = LPFC_EVENT_PLOGI_RCV; |
ea2151b4 JS |
6381 | break; |
6382 | case ELS_CMD_PRLO: | |
ddcc50f0 | 6383 | els_data->subcategory = LPFC_EVENT_PRLO_RCV; |
ea2151b4 JS |
6384 | break; |
6385 | case ELS_CMD_ADISC: | |
ddcc50f0 JS |
6386 | els_data->subcategory = LPFC_EVENT_ADISC_RCV; |
6387 | break; | |
6388 | case ELS_CMD_LOGO: | |
6389 | els_data->subcategory = LPFC_EVENT_LOGO_RCV; | |
6390 | /* Copy the WWPN in the LOGO payload */ | |
6391 | memcpy(logo_data->logo_wwpn, &payload[2], | |
6392 | sizeof(struct lpfc_name)); | |
ea2151b4 JS |
6393 | break; |
6394 | default: | |
e916141c | 6395 | kfree(els_data); |
ea2151b4 JS |
6396 | return; |
6397 | } | |
ddcc50f0 JS |
6398 | memcpy(els_data->wwpn, &ndlp->nlp_portname, sizeof(struct lpfc_name)); |
6399 | memcpy(els_data->wwnn, &ndlp->nlp_nodename, sizeof(struct lpfc_name)); | |
6400 | if (*payload == ELS_CMD_LOGO) { | |
6401 | fc_host_post_vendor_event(shost, | |
6402 | fc_get_event_number(), | |
6403 | sizeof(struct lpfc_logo_event), | |
6404 | (char *)logo_data, | |
6405 | LPFC_NL_VENDOR_ID); | |
6406 | kfree(logo_data); | |
6407 | } else { | |
6408 | fc_host_post_vendor_event(shost, | |
6409 | fc_get_event_number(), | |
6410 | sizeof(struct lpfc_els_event_header), | |
6411 | (char *)els_data, | |
6412 | LPFC_NL_VENDOR_ID); | |
6413 | kfree(els_data); | |
6414 | } | |
ea2151b4 JS |
6415 | |
6416 | return; | |
6417 | } | |
6418 | ||
6419 | ||
e59058c4 | 6420 | /** |
3621a710 | 6421 | * lpfc_els_unsol_buffer - Process an unsolicited event data buffer |
e59058c4 JS |
6422 | * @phba: pointer to lpfc hba data structure. |
6423 | * @pring: pointer to a SLI ring. | |
6424 | * @vport: pointer to a host virtual N_Port data structure. | |
6425 | * @elsiocb: pointer to lpfc els command iocb data structure. | |
6426 | * | |
6427 | * This routine is used for processing the IOCB associated with a unsolicited | |
6428 | * event. It first determines whether there is an existing ndlp that matches | |
6429 | * the DID from the unsolicited IOCB. If not, it will create a new one with | |
6430 | * the DID from the unsolicited IOCB. The ELS command from the unsolicited | |
6431 | * IOCB is then used to invoke the proper routine and to set up proper state | |
6432 | * of the discovery state machine. | |
6433 | **/ | |
ed957684 JS |
6434 | static void |
6435 | lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
92d7f7b0 | 6436 | struct lpfc_vport *vport, struct lpfc_iocbq *elsiocb) |
dea3101e | 6437 | { |
87af33fe | 6438 | struct Scsi_Host *shost; |
dea3101e | 6439 | struct lpfc_nodelist *ndlp; |
dea3101e | 6440 | struct ls_rjt stat; |
92d7f7b0 | 6441 | uint32_t *payload; |
2e0fef85 | 6442 | uint32_t cmd, did, newnode, rjt_err = 0; |
ed957684 | 6443 | IOCB_t *icmd = &elsiocb->iocb; |
dea3101e | 6444 | |
e47c9093 | 6445 | if (!vport || !(elsiocb->context2)) |
dea3101e | 6446 | goto dropit; |
2e0fef85 | 6447 | |
dea3101e | 6448 | newnode = 0; |
92d7f7b0 JS |
6449 | payload = ((struct lpfc_dmabuf *)elsiocb->context2)->virt; |
6450 | cmd = *payload; | |
ed957684 | 6451 | if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) == 0) |
495a714c | 6452 | lpfc_post_buffer(phba, pring, 1); |
dea3101e | 6453 | |
858c9f6c JS |
6454 | did = icmd->un.rcvels.remoteID; |
6455 | if (icmd->ulpStatus) { | |
6456 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, | |
6457 | "RCV Unsol ELS: status:x%x/x%x did:x%x", | |
6458 | icmd->ulpStatus, icmd->un.ulpWord[4], did); | |
dea3101e | 6459 | goto dropit; |
858c9f6c | 6460 | } |
dea3101e JB |
6461 | |
6462 | /* Check to see if link went down during discovery */ | |
ed957684 | 6463 | if (lpfc_els_chk_latt(vport)) |
dea3101e | 6464 | goto dropit; |
dea3101e | 6465 | |
c868595d | 6466 | /* Ignore traffic received during vport shutdown. */ |
92d7f7b0 JS |
6467 | if (vport->load_flag & FC_UNLOADING) |
6468 | goto dropit; | |
6469 | ||
92494144 JS |
6470 | /* If NPort discovery is delayed drop incoming ELS */ |
6471 | if ((vport->fc_flag & FC_DISC_DELAYED) && | |
6472 | (cmd != ELS_CMD_PLOGI)) | |
6473 | goto dropit; | |
6474 | ||
2e0fef85 | 6475 | ndlp = lpfc_findnode_did(vport, did); |
c9f8735b | 6476 | if (!ndlp) { |
dea3101e | 6477 | /* Cannot find existing Fabric ndlp, so allocate a new one */ |
c9f8735b | 6478 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); |
ed957684 | 6479 | if (!ndlp) |
dea3101e | 6480 | goto dropit; |
dea3101e | 6481 | |
2e0fef85 | 6482 | lpfc_nlp_init(vport, ndlp, did); |
98c9ea5c | 6483 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
dea3101e | 6484 | newnode = 1; |
e47c9093 | 6485 | if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) |
dea3101e | 6486 | ndlp->nlp_type |= NLP_FABRIC; |
58da1ffb JS |
6487 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { |
6488 | ndlp = lpfc_enable_node(vport, ndlp, | |
6489 | NLP_STE_UNUSED_NODE); | |
6490 | if (!ndlp) | |
6491 | goto dropit; | |
6492 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); | |
6493 | newnode = 1; | |
6494 | if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) | |
6495 | ndlp->nlp_type |= NLP_FABRIC; | |
6496 | } else if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) { | |
6497 | /* This is similar to the new node path */ | |
6498 | ndlp = lpfc_nlp_get(ndlp); | |
6499 | if (!ndlp) | |
6500 | goto dropit; | |
6501 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); | |
6502 | newnode = 1; | |
87af33fe | 6503 | } |
dea3101e JB |
6504 | |
6505 | phba->fc_stat.elsRcvFrame++; | |
e47c9093 | 6506 | |
329f9bc7 | 6507 | elsiocb->context1 = lpfc_nlp_get(ndlp); |
2e0fef85 | 6508 | elsiocb->vport = vport; |
dea3101e JB |
6509 | |
6510 | if ((cmd & ELS_CMD_MASK) == ELS_CMD_RSCN) { | |
6511 | cmd &= ELS_CMD_MASK; | |
6512 | } | |
6513 | /* ELS command <elsCmd> received from NPORT <did> */ | |
e8b62011 JS |
6514 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
6515 | "0112 ELS command x%x received from NPORT x%x " | |
6516 | "Data: x%x\n", cmd, did, vport->port_state); | |
dea3101e JB |
6517 | switch (cmd) { |
6518 | case ELS_CMD_PLOGI: | |
858c9f6c JS |
6519 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6520 | "RCV PLOGI: did:x%x/ste:x%x flg:x%x", | |
6521 | did, vport->port_state, ndlp->nlp_flag); | |
6522 | ||
dea3101e | 6523 | phba->fc_stat.elsRcvPLOGI++; |
858c9f6c JS |
6524 | ndlp = lpfc_plogi_confirm_nport(phba, payload, ndlp); |
6525 | ||
ddcc50f0 | 6526 | lpfc_send_els_event(vport, ndlp, payload); |
92494144 JS |
6527 | |
6528 | /* If Nport discovery is delayed, reject PLOGIs */ | |
6529 | if (vport->fc_flag & FC_DISC_DELAYED) { | |
6530 | rjt_err = LSRJT_UNABLE_TPC; | |
6531 | break; | |
6532 | } | |
858c9f6c | 6533 | if (vport->port_state < LPFC_DISC_AUTH) { |
1b32f6aa JS |
6534 | if (!(phba->pport->fc_flag & FC_PT2PT) || |
6535 | (phba->pport->fc_flag & FC_PT2PT_PLOGI)) { | |
6536 | rjt_err = LSRJT_UNABLE_TPC; | |
6537 | break; | |
6538 | } | |
6539 | /* We get here, and drop thru, if we are PT2PT with | |
6540 | * another NPort and the other side has initiated | |
6541 | * the PLOGI before responding to our FLOGI. | |
6542 | */ | |
dea3101e | 6543 | } |
87af33fe JS |
6544 | |
6545 | shost = lpfc_shost_from_vport(vport); | |
6546 | spin_lock_irq(shost->host_lock); | |
6547 | ndlp->nlp_flag &= ~NLP_TARGET_REMOVE; | |
6548 | spin_unlock_irq(shost->host_lock); | |
6549 | ||
2e0fef85 JS |
6550 | lpfc_disc_state_machine(vport, ndlp, elsiocb, |
6551 | NLP_EVT_RCV_PLOGI); | |
858c9f6c | 6552 | |
dea3101e JB |
6553 | break; |
6554 | case ELS_CMD_FLOGI: | |
858c9f6c JS |
6555 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6556 | "RCV FLOGI: did:x%x/ste:x%x flg:x%x", | |
6557 | did, vport->port_state, ndlp->nlp_flag); | |
6558 | ||
dea3101e | 6559 | phba->fc_stat.elsRcvFLOGI++; |
51ef4c26 | 6560 | lpfc_els_rcv_flogi(vport, elsiocb, ndlp); |
87af33fe | 6561 | if (newnode) |
98c9ea5c | 6562 | lpfc_nlp_put(ndlp); |
dea3101e JB |
6563 | break; |
6564 | case ELS_CMD_LOGO: | |
858c9f6c JS |
6565 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6566 | "RCV LOGO: did:x%x/ste:x%x flg:x%x", | |
6567 | did, vport->port_state, ndlp->nlp_flag); | |
6568 | ||
dea3101e | 6569 | phba->fc_stat.elsRcvLOGO++; |
ddcc50f0 | 6570 | lpfc_send_els_event(vport, ndlp, payload); |
2e0fef85 | 6571 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 6572 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e JB |
6573 | break; |
6574 | } | |
2e0fef85 | 6575 | lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_LOGO); |
dea3101e JB |
6576 | break; |
6577 | case ELS_CMD_PRLO: | |
858c9f6c JS |
6578 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6579 | "RCV PRLO: did:x%x/ste:x%x flg:x%x", | |
6580 | did, vport->port_state, ndlp->nlp_flag); | |
6581 | ||
dea3101e | 6582 | phba->fc_stat.elsRcvPRLO++; |
ddcc50f0 | 6583 | lpfc_send_els_event(vport, ndlp, payload); |
2e0fef85 | 6584 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 6585 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e JB |
6586 | break; |
6587 | } | |
2e0fef85 | 6588 | lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLO); |
dea3101e JB |
6589 | break; |
6590 | case ELS_CMD_RSCN: | |
6591 | phba->fc_stat.elsRcvRSCN++; | |
51ef4c26 | 6592 | lpfc_els_rcv_rscn(vport, elsiocb, ndlp); |
87af33fe | 6593 | if (newnode) |
98c9ea5c | 6594 | lpfc_nlp_put(ndlp); |
dea3101e JB |
6595 | break; |
6596 | case ELS_CMD_ADISC: | |
858c9f6c JS |
6597 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6598 | "RCV ADISC: did:x%x/ste:x%x flg:x%x", | |
6599 | did, vport->port_state, ndlp->nlp_flag); | |
6600 | ||
ddcc50f0 | 6601 | lpfc_send_els_event(vport, ndlp, payload); |
dea3101e | 6602 | phba->fc_stat.elsRcvADISC++; |
2e0fef85 | 6603 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 6604 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e JB |
6605 | break; |
6606 | } | |
2e0fef85 JS |
6607 | lpfc_disc_state_machine(vport, ndlp, elsiocb, |
6608 | NLP_EVT_RCV_ADISC); | |
dea3101e JB |
6609 | break; |
6610 | case ELS_CMD_PDISC: | |
858c9f6c JS |
6611 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6612 | "RCV PDISC: did:x%x/ste:x%x flg:x%x", | |
6613 | did, vport->port_state, ndlp->nlp_flag); | |
6614 | ||
dea3101e | 6615 | phba->fc_stat.elsRcvPDISC++; |
2e0fef85 | 6616 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 6617 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e JB |
6618 | break; |
6619 | } | |
2e0fef85 JS |
6620 | lpfc_disc_state_machine(vport, ndlp, elsiocb, |
6621 | NLP_EVT_RCV_PDISC); | |
dea3101e JB |
6622 | break; |
6623 | case ELS_CMD_FARPR: | |
858c9f6c JS |
6624 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6625 | "RCV FARPR: did:x%x/ste:x%x flg:x%x", | |
6626 | did, vport->port_state, ndlp->nlp_flag); | |
6627 | ||
dea3101e | 6628 | phba->fc_stat.elsRcvFARPR++; |
2e0fef85 | 6629 | lpfc_els_rcv_farpr(vport, elsiocb, ndlp); |
dea3101e JB |
6630 | break; |
6631 | case ELS_CMD_FARP: | |
858c9f6c JS |
6632 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6633 | "RCV FARP: did:x%x/ste:x%x flg:x%x", | |
6634 | did, vport->port_state, ndlp->nlp_flag); | |
6635 | ||
dea3101e | 6636 | phba->fc_stat.elsRcvFARP++; |
2e0fef85 | 6637 | lpfc_els_rcv_farp(vport, elsiocb, ndlp); |
dea3101e JB |
6638 | break; |
6639 | case ELS_CMD_FAN: | |
858c9f6c JS |
6640 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6641 | "RCV FAN: did:x%x/ste:x%x flg:x%x", | |
6642 | did, vport->port_state, ndlp->nlp_flag); | |
6643 | ||
dea3101e | 6644 | phba->fc_stat.elsRcvFAN++; |
2e0fef85 | 6645 | lpfc_els_rcv_fan(vport, elsiocb, ndlp); |
dea3101e | 6646 | break; |
dea3101e | 6647 | case ELS_CMD_PRLI: |
858c9f6c JS |
6648 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6649 | "RCV PRLI: did:x%x/ste:x%x flg:x%x", | |
6650 | did, vport->port_state, ndlp->nlp_flag); | |
6651 | ||
dea3101e | 6652 | phba->fc_stat.elsRcvPRLI++; |
2e0fef85 | 6653 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 6654 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e JB |
6655 | break; |
6656 | } | |
2e0fef85 | 6657 | lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLI); |
dea3101e | 6658 | break; |
7bb3b137 | 6659 | case ELS_CMD_LIRR: |
858c9f6c JS |
6660 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6661 | "RCV LIRR: did:x%x/ste:x%x flg:x%x", | |
6662 | did, vport->port_state, ndlp->nlp_flag); | |
6663 | ||
7bb3b137 | 6664 | phba->fc_stat.elsRcvLIRR++; |
2e0fef85 | 6665 | lpfc_els_rcv_lirr(vport, elsiocb, ndlp); |
87af33fe | 6666 | if (newnode) |
98c9ea5c | 6667 | lpfc_nlp_put(ndlp); |
7bb3b137 | 6668 | break; |
12265f68 JS |
6669 | case ELS_CMD_RLS: |
6670 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, | |
6671 | "RCV RLS: did:x%x/ste:x%x flg:x%x", | |
6672 | did, vport->port_state, ndlp->nlp_flag); | |
6673 | ||
6674 | phba->fc_stat.elsRcvRLS++; | |
6675 | lpfc_els_rcv_rls(vport, elsiocb, ndlp); | |
6676 | if (newnode) | |
6677 | lpfc_nlp_put(ndlp); | |
6678 | break; | |
7bb3b137 | 6679 | case ELS_CMD_RPS: |
858c9f6c JS |
6680 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6681 | "RCV RPS: did:x%x/ste:x%x flg:x%x", | |
6682 | did, vport->port_state, ndlp->nlp_flag); | |
6683 | ||
7bb3b137 | 6684 | phba->fc_stat.elsRcvRPS++; |
2e0fef85 | 6685 | lpfc_els_rcv_rps(vport, elsiocb, ndlp); |
87af33fe | 6686 | if (newnode) |
98c9ea5c | 6687 | lpfc_nlp_put(ndlp); |
7bb3b137 JW |
6688 | break; |
6689 | case ELS_CMD_RPL: | |
858c9f6c JS |
6690 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6691 | "RCV RPL: did:x%x/ste:x%x flg:x%x", | |
6692 | did, vport->port_state, ndlp->nlp_flag); | |
6693 | ||
7bb3b137 | 6694 | phba->fc_stat.elsRcvRPL++; |
2e0fef85 | 6695 | lpfc_els_rcv_rpl(vport, elsiocb, ndlp); |
87af33fe | 6696 | if (newnode) |
98c9ea5c | 6697 | lpfc_nlp_put(ndlp); |
7bb3b137 | 6698 | break; |
dea3101e | 6699 | case ELS_CMD_RNID: |
858c9f6c JS |
6700 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6701 | "RCV RNID: did:x%x/ste:x%x flg:x%x", | |
6702 | did, vport->port_state, ndlp->nlp_flag); | |
6703 | ||
dea3101e | 6704 | phba->fc_stat.elsRcvRNID++; |
2e0fef85 | 6705 | lpfc_els_rcv_rnid(vport, elsiocb, ndlp); |
87af33fe | 6706 | if (newnode) |
98c9ea5c | 6707 | lpfc_nlp_put(ndlp); |
dea3101e | 6708 | break; |
12265f68 JS |
6709 | case ELS_CMD_RTV: |
6710 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, | |
6711 | "RCV RTV: did:x%x/ste:x%x flg:x%x", | |
6712 | did, vport->port_state, ndlp->nlp_flag); | |
6713 | phba->fc_stat.elsRcvRTV++; | |
6714 | lpfc_els_rcv_rtv(vport, elsiocb, ndlp); | |
6715 | if (newnode) | |
6716 | lpfc_nlp_put(ndlp); | |
6717 | break; | |
5ffc266e JS |
6718 | case ELS_CMD_RRQ: |
6719 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, | |
6720 | "RCV RRQ: did:x%x/ste:x%x flg:x%x", | |
6721 | did, vport->port_state, ndlp->nlp_flag); | |
6722 | ||
6723 | phba->fc_stat.elsRcvRRQ++; | |
6724 | lpfc_els_rcv_rrq(vport, elsiocb, ndlp); | |
6725 | if (newnode) | |
6726 | lpfc_nlp_put(ndlp); | |
6727 | break; | |
12265f68 JS |
6728 | case ELS_CMD_ECHO: |
6729 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, | |
6730 | "RCV ECHO: did:x%x/ste:x%x flg:x%x", | |
6731 | did, vport->port_state, ndlp->nlp_flag); | |
6732 | ||
6733 | phba->fc_stat.elsRcvECHO++; | |
6734 | lpfc_els_rcv_echo(vport, elsiocb, ndlp); | |
6735 | if (newnode) | |
6736 | lpfc_nlp_put(ndlp); | |
6737 | break; | |
dea3101e | 6738 | default: |
858c9f6c JS |
6739 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6740 | "RCV ELS cmd: cmd:x%x did:x%x/ste:x%x", | |
6741 | cmd, did, vport->port_state); | |
6742 | ||
dea3101e | 6743 | /* Unsupported ELS command, reject */ |
63e801ce | 6744 | rjt_err = LSRJT_CMD_UNSUPPORTED; |
dea3101e JB |
6745 | |
6746 | /* Unknown ELS command <elsCmd> received from NPORT <did> */ | |
e8b62011 JS |
6747 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
6748 | "0115 Unknown ELS command x%x " | |
6749 | "received from NPORT x%x\n", cmd, did); | |
87af33fe | 6750 | if (newnode) |
98c9ea5c | 6751 | lpfc_nlp_put(ndlp); |
dea3101e JB |
6752 | break; |
6753 | } | |
6754 | ||
6755 | /* check if need to LS_RJT received ELS cmd */ | |
6756 | if (rjt_err) { | |
92d7f7b0 | 6757 | memset(&stat, 0, sizeof(stat)); |
858c9f6c | 6758 | stat.un.b.lsRjtRsnCode = rjt_err; |
1f679caf | 6759 | stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; |
858c9f6c JS |
6760 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, elsiocb, ndlp, |
6761 | NULL); | |
dea3101e JB |
6762 | } |
6763 | ||
d7c255b2 JS |
6764 | lpfc_nlp_put(elsiocb->context1); |
6765 | elsiocb->context1 = NULL; | |
ed957684 JS |
6766 | return; |
6767 | ||
6768 | dropit: | |
98c9ea5c | 6769 | if (vport && !(vport->load_flag & FC_UNLOADING)) |
6fb120a7 JS |
6770 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
6771 | "0111 Dropping received ELS cmd " | |
ed957684 | 6772 | "Data: x%x x%x x%x\n", |
6fb120a7 | 6773 | icmd->ulpStatus, icmd->un.ulpWord[4], icmd->ulpTimeout); |
ed957684 JS |
6774 | phba->fc_stat.elsRcvDrop++; |
6775 | } | |
6776 | ||
e59058c4 | 6777 | /** |
3621a710 | 6778 | * lpfc_els_unsol_event - Process an unsolicited event from an els sli ring |
e59058c4 JS |
6779 | * @phba: pointer to lpfc hba data structure. |
6780 | * @pring: pointer to a SLI ring. | |
6781 | * @elsiocb: pointer to lpfc els iocb data structure. | |
6782 | * | |
6783 | * This routine is used to process an unsolicited event received from a SLI | |
6784 | * (Service Level Interface) ring. The actual processing of the data buffer | |
6785 | * associated with the unsolicited event is done by invoking the routine | |
6786 | * lpfc_els_unsol_buffer() after properly set up the iocb buffer from the | |
6787 | * SLI ring on which the unsolicited event was received. | |
6788 | **/ | |
ed957684 JS |
6789 | void |
6790 | lpfc_els_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
6791 | struct lpfc_iocbq *elsiocb) | |
6792 | { | |
6793 | struct lpfc_vport *vport = phba->pport; | |
ed957684 | 6794 | IOCB_t *icmd = &elsiocb->iocb; |
ed957684 | 6795 | dma_addr_t paddr; |
92d7f7b0 JS |
6796 | struct lpfc_dmabuf *bdeBuf1 = elsiocb->context2; |
6797 | struct lpfc_dmabuf *bdeBuf2 = elsiocb->context3; | |
6798 | ||
d7c255b2 | 6799 | elsiocb->context1 = NULL; |
92d7f7b0 JS |
6800 | elsiocb->context2 = NULL; |
6801 | elsiocb->context3 = NULL; | |
ed957684 | 6802 | |
92d7f7b0 JS |
6803 | if (icmd->ulpStatus == IOSTAT_NEED_BUFFER) { |
6804 | lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ); | |
6805 | } else if (icmd->ulpStatus == IOSTAT_LOCAL_REJECT && | |
6806 | (icmd->un.ulpWord[4] & 0xff) == IOERR_RCV_BUFFER_WAITING) { | |
ed957684 JS |
6807 | phba->fc_stat.NoRcvBuf++; |
6808 | /* Not enough posted buffers; Try posting more buffers */ | |
92d7f7b0 | 6809 | if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) |
495a714c | 6810 | lpfc_post_buffer(phba, pring, 0); |
ed957684 JS |
6811 | return; |
6812 | } | |
6813 | ||
92d7f7b0 JS |
6814 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && |
6815 | (icmd->ulpCommand == CMD_IOCB_RCV_ELS64_CX || | |
6816 | icmd->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) { | |
6817 | if (icmd->unsli3.rcvsli3.vpi == 0xffff) | |
6818 | vport = phba->pport; | |
6fb120a7 JS |
6819 | else |
6820 | vport = lpfc_find_vport_by_vpid(phba, | |
6d368e53 | 6821 | icmd->unsli3.rcvsli3.vpi); |
92d7f7b0 | 6822 | } |
6d368e53 | 6823 | |
7f5f3d0d JS |
6824 | /* If there are no BDEs associated |
6825 | * with this IOCB, there is nothing to do. | |
6826 | */ | |
ed957684 JS |
6827 | if (icmd->ulpBdeCount == 0) |
6828 | return; | |
6829 | ||
7f5f3d0d JS |
6830 | /* type of ELS cmd is first 32bit word |
6831 | * in packet | |
6832 | */ | |
ed957684 | 6833 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
92d7f7b0 | 6834 | elsiocb->context2 = bdeBuf1; |
ed957684 JS |
6835 | } else { |
6836 | paddr = getPaddr(icmd->un.cont64[0].addrHigh, | |
6837 | icmd->un.cont64[0].addrLow); | |
92d7f7b0 JS |
6838 | elsiocb->context2 = lpfc_sli_ringpostbuf_get(phba, pring, |
6839 | paddr); | |
ed957684 JS |
6840 | } |
6841 | ||
92d7f7b0 JS |
6842 | lpfc_els_unsol_buffer(phba, pring, vport, elsiocb); |
6843 | /* | |
6844 | * The different unsolicited event handlers would tell us | |
6845 | * if they are done with "mp" by setting context2 to NULL. | |
6846 | */ | |
dea3101e | 6847 | if (elsiocb->context2) { |
92d7f7b0 JS |
6848 | lpfc_in_buf_free(phba, (struct lpfc_dmabuf *)elsiocb->context2); |
6849 | elsiocb->context2 = NULL; | |
dea3101e | 6850 | } |
ed957684 JS |
6851 | |
6852 | /* RCV_ELS64_CX provide for 2 BDEs - process 2nd if included */ | |
92d7f7b0 | 6853 | if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) && |
ed957684 | 6854 | icmd->ulpBdeCount == 2) { |
92d7f7b0 JS |
6855 | elsiocb->context2 = bdeBuf2; |
6856 | lpfc_els_unsol_buffer(phba, pring, vport, elsiocb); | |
ed957684 JS |
6857 | /* free mp if we are done with it */ |
6858 | if (elsiocb->context2) { | |
92d7f7b0 JS |
6859 | lpfc_in_buf_free(phba, elsiocb->context2); |
6860 | elsiocb->context2 = NULL; | |
6861 | } | |
6862 | } | |
6863 | } | |
6864 | ||
e59058c4 | 6865 | /** |
3621a710 | 6866 | * lpfc_do_scr_ns_plogi - Issue a plogi to the name server for scr |
e59058c4 JS |
6867 | * @phba: pointer to lpfc hba data structure. |
6868 | * @vport: pointer to a virtual N_Port data structure. | |
6869 | * | |
6870 | * This routine issues a Port Login (PLOGI) to the Name Server with | |
6871 | * State Change Request (SCR) for a @vport. This routine will create an | |
6872 | * ndlp for the Name Server associated to the @vport if such node does | |
6873 | * not already exist. The PLOGI to Name Server is issued by invoking the | |
6874 | * lpfc_issue_els_plogi() routine. If Fabric-Device Management Interface | |
6875 | * (FDMI) is configured to the @vport, a FDMI node will be created and | |
6876 | * the PLOGI to FDMI is issued by invoking lpfc_issue_els_plogi() routine. | |
6877 | **/ | |
92d7f7b0 JS |
6878 | void |
6879 | lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport) | |
6880 | { | |
6881 | struct lpfc_nodelist *ndlp, *ndlp_fdmi; | |
92494144 JS |
6882 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
6883 | ||
6884 | /* | |
6885 | * If lpfc_delay_discovery parameter is set and the clean address | |
6886 | * bit is cleared and fc fabric parameters chenged, delay FC NPort | |
6887 | * discovery. | |
6888 | */ | |
6889 | spin_lock_irq(shost->host_lock); | |
6890 | if (vport->fc_flag & FC_DISC_DELAYED) { | |
6891 | spin_unlock_irq(shost->host_lock); | |
6892 | mod_timer(&vport->delayed_disc_tmo, | |
6893 | jiffies + HZ * phba->fc_ratov); | |
6894 | return; | |
6895 | } | |
6896 | spin_unlock_irq(shost->host_lock); | |
92d7f7b0 JS |
6897 | |
6898 | ndlp = lpfc_findnode_did(vport, NameServer_DID); | |
6899 | if (!ndlp) { | |
6900 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
6901 | if (!ndlp) { | |
76a95d75 | 6902 | if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { |
92d7f7b0 JS |
6903 | lpfc_disc_start(vport); |
6904 | return; | |
6905 | } | |
6906 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
e8b62011 JS |
6907 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
6908 | "0251 NameServer login: no memory\n"); | |
92d7f7b0 JS |
6909 | return; |
6910 | } | |
6911 | lpfc_nlp_init(vport, ndlp, NameServer_DID); | |
e47c9093 JS |
6912 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { |
6913 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
6914 | if (!ndlp) { | |
76a95d75 | 6915 | if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { |
e47c9093 JS |
6916 | lpfc_disc_start(vport); |
6917 | return; | |
6918 | } | |
6919 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
6920 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
6921 | "0348 NameServer login: node freed\n"); | |
6922 | return; | |
6923 | } | |
92d7f7b0 | 6924 | } |
58da1ffb | 6925 | ndlp->nlp_type |= NLP_FABRIC; |
92d7f7b0 JS |
6926 | |
6927 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); | |
6928 | ||
6929 | if (lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0)) { | |
6930 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
e8b62011 JS |
6931 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
6932 | "0252 Cannot issue NameServer login\n"); | |
92d7f7b0 JS |
6933 | return; |
6934 | } | |
6935 | ||
3de2a653 | 6936 | if (vport->cfg_fdmi_on) { |
63e801ce JS |
6937 | /* If this is the first time, allocate an ndlp and initialize |
6938 | * it. Otherwise, make sure the node is enabled and then do the | |
6939 | * login. | |
6940 | */ | |
6941 | ndlp_fdmi = lpfc_findnode_did(vport, FDMI_DID); | |
6942 | if (!ndlp_fdmi) { | |
6943 | ndlp_fdmi = mempool_alloc(phba->nlp_mem_pool, | |
6944 | GFP_KERNEL); | |
6945 | if (ndlp_fdmi) { | |
6946 | lpfc_nlp_init(vport, ndlp_fdmi, FDMI_DID); | |
6947 | ndlp_fdmi->nlp_type |= NLP_FABRIC; | |
6948 | } else | |
6949 | return; | |
6950 | } | |
6951 | if (!NLP_CHK_NODE_ACT(ndlp_fdmi)) | |
6952 | ndlp_fdmi = lpfc_enable_node(vport, | |
6953 | ndlp_fdmi, | |
6954 | NLP_STE_NPR_NODE); | |
6955 | ||
92d7f7b0 | 6956 | if (ndlp_fdmi) { |
58da1ffb | 6957 | lpfc_nlp_set_state(vport, ndlp_fdmi, |
63e801ce JS |
6958 | NLP_STE_PLOGI_ISSUE); |
6959 | lpfc_issue_els_plogi(vport, ndlp_fdmi->nlp_DID, 0); | |
92d7f7b0 JS |
6960 | } |
6961 | } | |
92d7f7b0 JS |
6962 | } |
6963 | ||
e59058c4 | 6964 | /** |
3621a710 | 6965 | * lpfc_cmpl_reg_new_vport - Completion callback function to register new vport |
e59058c4 JS |
6966 | * @phba: pointer to lpfc hba data structure. |
6967 | * @pmb: pointer to the driver internal queue element for mailbox command. | |
6968 | * | |
6969 | * This routine is the completion callback function to register new vport | |
6970 | * mailbox command. If the new vport mailbox command completes successfully, | |
6971 | * the fabric registration login shall be performed on physical port (the | |
6972 | * new vport created is actually a physical port, with VPI 0) or the port | |
6973 | * login to Name Server for State Change Request (SCR) will be performed | |
6974 | * on virtual port (real virtual port, with VPI greater than 0). | |
6975 | **/ | |
92d7f7b0 JS |
6976 | static void |
6977 | lpfc_cmpl_reg_new_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) | |
6978 | { | |
6979 | struct lpfc_vport *vport = pmb->vport; | |
6980 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
6981 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; | |
04c68496 | 6982 | MAILBOX_t *mb = &pmb->u.mb; |
695a814e | 6983 | int rc; |
92d7f7b0 | 6984 | |
09372820 | 6985 | spin_lock_irq(shost->host_lock); |
92d7f7b0 | 6986 | vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; |
09372820 | 6987 | spin_unlock_irq(shost->host_lock); |
92d7f7b0 JS |
6988 | |
6989 | if (mb->mbxStatus) { | |
e8b62011 | 6990 | lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, |
38b92ef8 JS |
6991 | "0915 Register VPI failed : Status: x%x" |
6992 | " upd bit: x%x \n", mb->mbxStatus, | |
6993 | mb->un.varRegVpi.upd); | |
6994 | if (phba->sli_rev == LPFC_SLI_REV4 && | |
6995 | mb->un.varRegVpi.upd) | |
6996 | goto mbox_err_exit ; | |
92d7f7b0 JS |
6997 | |
6998 | switch (mb->mbxStatus) { | |
6999 | case 0x11: /* unsupported feature */ | |
7000 | case 0x9603: /* max_vpi exceeded */ | |
7f5f3d0d | 7001 | case 0x9602: /* Link event since CLEAR_LA */ |
92d7f7b0 JS |
7002 | /* giving up on vport registration */ |
7003 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
7004 | spin_lock_irq(shost->host_lock); | |
7005 | vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
7006 | spin_unlock_irq(shost->host_lock); | |
7007 | lpfc_can_disctmo(vport); | |
7008 | break; | |
695a814e JS |
7009 | /* If reg_vpi fail with invalid VPI status, re-init VPI */ |
7010 | case 0x20: | |
7011 | spin_lock_irq(shost->host_lock); | |
7012 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; | |
7013 | spin_unlock_irq(shost->host_lock); | |
7014 | lpfc_init_vpi(phba, pmb, vport->vpi); | |
7015 | pmb->vport = vport; | |
7016 | pmb->mbox_cmpl = lpfc_init_vpi_cmpl; | |
7017 | rc = lpfc_sli_issue_mbox(phba, pmb, | |
7018 | MBX_NOWAIT); | |
7019 | if (rc == MBX_NOT_FINISHED) { | |
7020 | lpfc_printf_vlog(vport, | |
7021 | KERN_ERR, LOG_MBOX, | |
7022 | "2732 Failed to issue INIT_VPI" | |
7023 | " mailbox command\n"); | |
7024 | } else { | |
7025 | lpfc_nlp_put(ndlp); | |
7026 | return; | |
7027 | } | |
7028 | ||
92d7f7b0 JS |
7029 | default: |
7030 | /* Try to recover from this error */ | |
5af5eee7 JS |
7031 | if (phba->sli_rev == LPFC_SLI_REV4) |
7032 | lpfc_sli4_unreg_all_rpis(vport); | |
92d7f7b0 | 7033 | lpfc_mbx_unreg_vpi(vport); |
09372820 | 7034 | spin_lock_irq(shost->host_lock); |
92d7f7b0 | 7035 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; |
09372820 | 7036 | spin_unlock_irq(shost->host_lock); |
4b40c59e JS |
7037 | if (vport->port_type == LPFC_PHYSICAL_PORT |
7038 | && !(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) | |
76a95d75 | 7039 | lpfc_issue_init_vfi(vport); |
7f5f3d0d JS |
7040 | else |
7041 | lpfc_initial_fdisc(vport); | |
92d7f7b0 JS |
7042 | break; |
7043 | } | |
92d7f7b0 | 7044 | } else { |
695a814e | 7045 | spin_lock_irq(shost->host_lock); |
1987807d | 7046 | vport->vpi_state |= LPFC_VPI_REGISTERED; |
695a814e JS |
7047 | spin_unlock_irq(shost->host_lock); |
7048 | if (vport == phba->pport) { | |
6fb120a7 JS |
7049 | if (phba->sli_rev < LPFC_SLI_REV4) |
7050 | lpfc_issue_fabric_reglogin(vport); | |
695a814e | 7051 | else { |
fc2b989b JS |
7052 | /* |
7053 | * If the physical port is instantiated using | |
7054 | * FDISC, do not start vport discovery. | |
7055 | */ | |
7056 | if (vport->port_state != LPFC_FDISC) | |
7057 | lpfc_start_fdiscs(phba); | |
695a814e JS |
7058 | lpfc_do_scr_ns_plogi(phba, vport); |
7059 | } | |
7060 | } else | |
92d7f7b0 JS |
7061 | lpfc_do_scr_ns_plogi(phba, vport); |
7062 | } | |
38b92ef8 | 7063 | mbox_err_exit: |
fa4066b6 JS |
7064 | /* Now, we decrement the ndlp reference count held for this |
7065 | * callback function | |
7066 | */ | |
7067 | lpfc_nlp_put(ndlp); | |
7068 | ||
92d7f7b0 JS |
7069 | mempool_free(pmb, phba->mbox_mem_pool); |
7070 | return; | |
7071 | } | |
7072 | ||
e59058c4 | 7073 | /** |
3621a710 | 7074 | * lpfc_register_new_vport - Register a new vport with a HBA |
e59058c4 JS |
7075 | * @phba: pointer to lpfc hba data structure. |
7076 | * @vport: pointer to a host virtual N_Port data structure. | |
7077 | * @ndlp: pointer to a node-list data structure. | |
7078 | * | |
7079 | * This routine registers the @vport as a new virtual port with a HBA. | |
7080 | * It is done through a registering vpi mailbox command. | |
7081 | **/ | |
695a814e | 7082 | void |
92d7f7b0 JS |
7083 | lpfc_register_new_vport(struct lpfc_hba *phba, struct lpfc_vport *vport, |
7084 | struct lpfc_nodelist *ndlp) | |
7085 | { | |
09372820 | 7086 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
92d7f7b0 JS |
7087 | LPFC_MBOXQ_t *mbox; |
7088 | ||
7089 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
7090 | if (mbox) { | |
6fb120a7 | 7091 | lpfc_reg_vpi(vport, mbox); |
92d7f7b0 JS |
7092 | mbox->vport = vport; |
7093 | mbox->context2 = lpfc_nlp_get(ndlp); | |
7094 | mbox->mbox_cmpl = lpfc_cmpl_reg_new_vport; | |
0b727fea | 7095 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) |
92d7f7b0 | 7096 | == MBX_NOT_FINISHED) { |
fa4066b6 JS |
7097 | /* mailbox command not success, decrement ndlp |
7098 | * reference count for this command | |
7099 | */ | |
7100 | lpfc_nlp_put(ndlp); | |
92d7f7b0 | 7101 | mempool_free(mbox, phba->mbox_mem_pool); |
92d7f7b0 | 7102 | |
e8b62011 JS |
7103 | lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, |
7104 | "0253 Register VPI: Can't send mbox\n"); | |
fa4066b6 | 7105 | goto mbox_err_exit; |
92d7f7b0 JS |
7106 | } |
7107 | } else { | |
e8b62011 JS |
7108 | lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, |
7109 | "0254 Register VPI: no memory\n"); | |
fa4066b6 | 7110 | goto mbox_err_exit; |
92d7f7b0 | 7111 | } |
fa4066b6 JS |
7112 | return; |
7113 | ||
7114 | mbox_err_exit: | |
7115 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
7116 | spin_lock_irq(shost->host_lock); | |
7117 | vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; | |
7118 | spin_unlock_irq(shost->host_lock); | |
7119 | return; | |
92d7f7b0 JS |
7120 | } |
7121 | ||
695a814e | 7122 | /** |
0c9ab6f5 | 7123 | * lpfc_cancel_all_vport_retry_delay_timer - Cancel all vport retry delay timer |
695a814e JS |
7124 | * @phba: pointer to lpfc hba data structure. |
7125 | * | |
0c9ab6f5 | 7126 | * This routine cancels the retry delay timers to all the vports. |
695a814e JS |
7127 | **/ |
7128 | void | |
0c9ab6f5 | 7129 | lpfc_cancel_all_vport_retry_delay_timer(struct lpfc_hba *phba) |
695a814e JS |
7130 | { |
7131 | struct lpfc_vport **vports; | |
7132 | struct lpfc_nodelist *ndlp; | |
695a814e | 7133 | uint32_t link_state; |
0c9ab6f5 | 7134 | int i; |
695a814e JS |
7135 | |
7136 | /* Treat this failure as linkdown for all vports */ | |
7137 | link_state = phba->link_state; | |
7138 | lpfc_linkdown(phba); | |
7139 | phba->link_state = link_state; | |
7140 | ||
7141 | vports = lpfc_create_vport_work_array(phba); | |
7142 | ||
7143 | if (vports) { | |
7144 | for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { | |
7145 | ndlp = lpfc_findnode_did(vports[i], Fabric_DID); | |
7146 | if (ndlp) | |
7147 | lpfc_cancel_retry_delay_tmo(vports[i], ndlp); | |
7148 | lpfc_els_flush_cmd(vports[i]); | |
7149 | } | |
7150 | lpfc_destroy_vport_work_array(phba, vports); | |
7151 | } | |
0c9ab6f5 JS |
7152 | } |
7153 | ||
7154 | /** | |
7155 | * lpfc_retry_pport_discovery - Start timer to retry FLOGI. | |
7156 | * @phba: pointer to lpfc hba data structure. | |
7157 | * | |
7158 | * This routine abort all pending discovery commands and | |
7159 | * start a timer to retry FLOGI for the physical port | |
7160 | * discovery. | |
7161 | **/ | |
7162 | void | |
7163 | lpfc_retry_pport_discovery(struct lpfc_hba *phba) | |
7164 | { | |
7165 | struct lpfc_nodelist *ndlp; | |
7166 | struct Scsi_Host *shost; | |
7167 | ||
7168 | /* Cancel the all vports retry delay retry timers */ | |
7169 | lpfc_cancel_all_vport_retry_delay_timer(phba); | |
695a814e JS |
7170 | |
7171 | /* If fabric require FLOGI, then re-instantiate physical login */ | |
7172 | ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); | |
7173 | if (!ndlp) | |
7174 | return; | |
7175 | ||
695a814e JS |
7176 | shost = lpfc_shost_from_vport(phba->pport); |
7177 | mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ); | |
7178 | spin_lock_irq(shost->host_lock); | |
7179 | ndlp->nlp_flag |= NLP_DELAY_TMO; | |
7180 | spin_unlock_irq(shost->host_lock); | |
7181 | ndlp->nlp_last_elscmd = ELS_CMD_FLOGI; | |
7182 | phba->pport->port_state = LPFC_FLOGI; | |
7183 | return; | |
7184 | } | |
7185 | ||
7186 | /** | |
7187 | * lpfc_fabric_login_reqd - Check if FLOGI required. | |
7188 | * @phba: pointer to lpfc hba data structure. | |
7189 | * @cmdiocb: pointer to FDISC command iocb. | |
7190 | * @rspiocb: pointer to FDISC response iocb. | |
7191 | * | |
7192 | * This routine checks if a FLOGI is reguired for FDISC | |
7193 | * to succeed. | |
7194 | **/ | |
7195 | static int | |
7196 | lpfc_fabric_login_reqd(struct lpfc_hba *phba, | |
7197 | struct lpfc_iocbq *cmdiocb, | |
7198 | struct lpfc_iocbq *rspiocb) | |
7199 | { | |
7200 | ||
7201 | if ((rspiocb->iocb.ulpStatus != IOSTAT_FABRIC_RJT) || | |
7202 | (rspiocb->iocb.un.ulpWord[4] != RJT_LOGIN_REQUIRED)) | |
7203 | return 0; | |
7204 | else | |
7205 | return 1; | |
7206 | } | |
7207 | ||
e59058c4 | 7208 | /** |
3621a710 | 7209 | * lpfc_cmpl_els_fdisc - Completion function for fdisc iocb command |
e59058c4 JS |
7210 | * @phba: pointer to lpfc hba data structure. |
7211 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
7212 | * @rspiocb: pointer to lpfc response iocb data structure. | |
7213 | * | |
7214 | * This routine is the completion callback function to a Fabric Discover | |
7215 | * (FDISC) ELS command. Since all the FDISC ELS commands are issued | |
7216 | * single threaded, each FDISC completion callback function will reset | |
7217 | * the discovery timer for all vports such that the timers will not get | |
7218 | * unnecessary timeout. The function checks the FDISC IOCB status. If error | |
7219 | * detected, the vport will be set to FC_VPORT_FAILED state. Otherwise,the | |
7220 | * vport will set to FC_VPORT_ACTIVE state. It then checks whether the DID | |
7221 | * assigned to the vport has been changed with the completion of the FDISC | |
7222 | * command. If so, both RPI (Remote Port Index) and VPI (Virtual Port Index) | |
7223 | * are unregistered from the HBA, and then the lpfc_register_new_vport() | |
7224 | * routine is invoked to register new vport with the HBA. Otherwise, the | |
7225 | * lpfc_do_scr_ns_plogi() routine is invoked to issue a PLOGI to the Name | |
7226 | * Server for State Change Request (SCR). | |
7227 | **/ | |
92d7f7b0 JS |
7228 | static void |
7229 | lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
7230 | struct lpfc_iocbq *rspiocb) | |
7231 | { | |
7232 | struct lpfc_vport *vport = cmdiocb->vport; | |
7233 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
7234 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
7235 | struct lpfc_nodelist *np; | |
7236 | struct lpfc_nodelist *next_np; | |
7237 | IOCB_t *irsp = &rspiocb->iocb; | |
7238 | struct lpfc_iocbq *piocb; | |
92494144 JS |
7239 | struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp; |
7240 | struct serv_parm *sp; | |
7241 | uint8_t fabric_param_changed; | |
92d7f7b0 | 7242 | |
e8b62011 JS |
7243 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
7244 | "0123 FDISC completes. x%x/x%x prevDID: x%x\n", | |
7245 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
7246 | vport->fc_prevDID); | |
92d7f7b0 JS |
7247 | /* Since all FDISCs are being single threaded, we |
7248 | * must reset the discovery timer for ALL vports | |
7249 | * waiting to send FDISC when one completes. | |
7250 | */ | |
7251 | list_for_each_entry(piocb, &phba->fabric_iocb_list, list) { | |
7252 | lpfc_set_disctmo(piocb->vport); | |
7253 | } | |
7254 | ||
858c9f6c JS |
7255 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
7256 | "FDISC cmpl: status:x%x/x%x prevdid:x%x", | |
7257 | irsp->ulpStatus, irsp->un.ulpWord[4], vport->fc_prevDID); | |
7258 | ||
92d7f7b0 | 7259 | if (irsp->ulpStatus) { |
695a814e JS |
7260 | |
7261 | if (lpfc_fabric_login_reqd(phba, cmdiocb, rspiocb)) { | |
7262 | lpfc_retry_pport_discovery(phba); | |
7263 | goto out; | |
7264 | } | |
7265 | ||
92d7f7b0 JS |
7266 | /* Check for retry */ |
7267 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) | |
7268 | goto out; | |
92d7f7b0 | 7269 | /* FDISC failed */ |
e8b62011 | 7270 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
6b5151fd | 7271 | "0126 FDISC failed. (x%x/x%x)\n", |
e8b62011 | 7272 | irsp->ulpStatus, irsp->un.ulpWord[4]); |
d7c255b2 JS |
7273 | goto fdisc_failed; |
7274 | } | |
d7c255b2 | 7275 | spin_lock_irq(shost->host_lock); |
695a814e | 7276 | vport->fc_flag &= ~FC_VPORT_CVL_RCVD; |
4b40c59e | 7277 | vport->fc_flag &= ~FC_VPORT_LOGO_RCVD; |
d7c255b2 | 7278 | vport->fc_flag |= FC_FABRIC; |
76a95d75 | 7279 | if (vport->phba->fc_topology == LPFC_TOPOLOGY_LOOP) |
d7c255b2 JS |
7280 | vport->fc_flag |= FC_PUBLIC_LOOP; |
7281 | spin_unlock_irq(shost->host_lock); | |
92d7f7b0 | 7282 | |
d7c255b2 JS |
7283 | vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID; |
7284 | lpfc_vport_set_state(vport, FC_VPORT_ACTIVE); | |
92494144 JS |
7285 | prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); |
7286 | sp = prsp->virt + sizeof(uint32_t); | |
7287 | fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp); | |
7288 | memcpy(&vport->fabric_portname, &sp->portName, | |
7289 | sizeof(struct lpfc_name)); | |
7290 | memcpy(&vport->fabric_nodename, &sp->nodeName, | |
7291 | sizeof(struct lpfc_name)); | |
7292 | if (fabric_param_changed && | |
d7c255b2 JS |
7293 | !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { |
7294 | /* If our NportID changed, we need to ensure all | |
7295 | * remaining NPORTs get unreg_login'ed so we can | |
7296 | * issue unreg_vpi. | |
7297 | */ | |
7298 | list_for_each_entry_safe(np, next_np, | |
7299 | &vport->fc_nodes, nlp_listp) { | |
7300 | if (!NLP_CHK_NODE_ACT(ndlp) || | |
7301 | (np->nlp_state != NLP_STE_NPR_NODE) || | |
7302 | !(np->nlp_flag & NLP_NPR_ADISC)) | |
7303 | continue; | |
09372820 | 7304 | spin_lock_irq(shost->host_lock); |
d7c255b2 | 7305 | np->nlp_flag &= ~NLP_NPR_ADISC; |
09372820 | 7306 | spin_unlock_irq(shost->host_lock); |
d7c255b2 | 7307 | lpfc_unreg_rpi(vport, np); |
92d7f7b0 | 7308 | } |
78730cfe | 7309 | lpfc_cleanup_pending_mbox(vport); |
5af5eee7 JS |
7310 | |
7311 | if (phba->sli_rev == LPFC_SLI_REV4) | |
7312 | lpfc_sli4_unreg_all_rpis(vport); | |
7313 | ||
d7c255b2 JS |
7314 | lpfc_mbx_unreg_vpi(vport); |
7315 | spin_lock_irq(shost->host_lock); | |
7316 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; | |
0f65ff68 JS |
7317 | if (phba->sli_rev == LPFC_SLI_REV4) |
7318 | vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; | |
4b40c59e JS |
7319 | else |
7320 | vport->fc_flag |= FC_LOGO_RCVD_DID_CHNG; | |
d7c255b2 | 7321 | spin_unlock_irq(shost->host_lock); |
38b92ef8 JS |
7322 | } else if ((phba->sli_rev == LPFC_SLI_REV4) && |
7323 | !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { | |
7324 | /* | |
7325 | * Driver needs to re-reg VPI in order for f/w | |
7326 | * to update the MAC address. | |
7327 | */ | |
7328 | lpfc_register_new_vport(phba, vport, ndlp); | |
5ac6b303 | 7329 | goto out; |
92d7f7b0 JS |
7330 | } |
7331 | ||
ecfd03c6 JS |
7332 | if (vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI) |
7333 | lpfc_issue_init_vpi(vport); | |
7334 | else if (vport->fc_flag & FC_VPORT_NEEDS_REG_VPI) | |
d7c255b2 JS |
7335 | lpfc_register_new_vport(phba, vport, ndlp); |
7336 | else | |
7337 | lpfc_do_scr_ns_plogi(phba, vport); | |
7338 | goto out; | |
7339 | fdisc_failed: | |
7340 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
7341 | /* Cancel discovery timer */ | |
7342 | lpfc_can_disctmo(vport); | |
7343 | lpfc_nlp_put(ndlp); | |
92d7f7b0 JS |
7344 | out: |
7345 | lpfc_els_free_iocb(phba, cmdiocb); | |
7346 | } | |
7347 | ||
e59058c4 | 7348 | /** |
3621a710 | 7349 | * lpfc_issue_els_fdisc - Issue a fdisc iocb command |
e59058c4 JS |
7350 | * @vport: pointer to a virtual N_Port data structure. |
7351 | * @ndlp: pointer to a node-list data structure. | |
7352 | * @retry: number of retries to the command IOCB. | |
7353 | * | |
7354 | * This routine prepares and issues a Fabric Discover (FDISC) IOCB to | |
7355 | * a remote node (@ndlp) off a @vport. It uses the lpfc_issue_fabric_iocb() | |
7356 | * routine to issue the IOCB, which makes sure only one outstanding fabric | |
7357 | * IOCB will be sent off HBA at any given time. | |
7358 | * | |
7359 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
7360 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
7361 | * will be stored into the context1 field of the IOCB for the completion | |
7362 | * callback function to the FDISC ELS command. | |
7363 | * | |
7364 | * Return code | |
7365 | * 0 - Successfully issued fdisc iocb command | |
7366 | * 1 - Failed to issue fdisc iocb command | |
7367 | **/ | |
a6ababd2 | 7368 | static int |
92d7f7b0 JS |
7369 | lpfc_issue_els_fdisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
7370 | uint8_t retry) | |
7371 | { | |
7372 | struct lpfc_hba *phba = vport->phba; | |
7373 | IOCB_t *icmd; | |
7374 | struct lpfc_iocbq *elsiocb; | |
7375 | struct serv_parm *sp; | |
7376 | uint8_t *pcmd; | |
7377 | uint16_t cmdsize; | |
7378 | int did = ndlp->nlp_DID; | |
7379 | int rc; | |
92d7f7b0 | 7380 | |
5ffc266e | 7381 | vport->port_state = LPFC_FDISC; |
6b5151fd | 7382 | vport->fc_myDID = 0; |
92d7f7b0 JS |
7383 | cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); |
7384 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did, | |
7385 | ELS_CMD_FDISC); | |
7386 | if (!elsiocb) { | |
92d7f7b0 | 7387 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
e8b62011 JS |
7388 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
7389 | "0255 Issue FDISC: no IOCB\n"); | |
92d7f7b0 JS |
7390 | return 1; |
7391 | } | |
7392 | ||
7393 | icmd = &elsiocb->iocb; | |
7394 | icmd->un.elsreq64.myID = 0; | |
7395 | icmd->un.elsreq64.fl = 1; | |
7396 | ||
73d91e50 JS |
7397 | /* |
7398 | * SLI3 ports require a different context type value than SLI4. | |
7399 | * Catch SLI3 ports here and override the prep. | |
7400 | */ | |
7401 | if (phba->sli_rev == LPFC_SLI_REV3) { | |
f1126688 JS |
7402 | icmd->ulpCt_h = 1; |
7403 | icmd->ulpCt_l = 0; | |
7404 | } | |
92d7f7b0 JS |
7405 | |
7406 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
7407 | *((uint32_t *) (pcmd)) = ELS_CMD_FDISC; | |
7408 | pcmd += sizeof(uint32_t); /* CSP Word 1 */ | |
7409 | memcpy(pcmd, &vport->phba->pport->fc_sparam, sizeof(struct serv_parm)); | |
7410 | sp = (struct serv_parm *) pcmd; | |
7411 | /* Setup CSPs accordingly for Fabric */ | |
7412 | sp->cmn.e_d_tov = 0; | |
7413 | sp->cmn.w2.r_a_tov = 0; | |
df9e1b59 | 7414 | sp->cmn.virtual_fabric_support = 0; |
92d7f7b0 JS |
7415 | sp->cls1.classValid = 0; |
7416 | sp->cls2.seqDelivery = 1; | |
7417 | sp->cls3.seqDelivery = 1; | |
7418 | ||
7419 | pcmd += sizeof(uint32_t); /* CSP Word 2 */ | |
7420 | pcmd += sizeof(uint32_t); /* CSP Word 3 */ | |
7421 | pcmd += sizeof(uint32_t); /* CSP Word 4 */ | |
7422 | pcmd += sizeof(uint32_t); /* Port Name */ | |
7423 | memcpy(pcmd, &vport->fc_portname, 8); | |
7424 | pcmd += sizeof(uint32_t); /* Node Name */ | |
7425 | pcmd += sizeof(uint32_t); /* Node Name */ | |
7426 | memcpy(pcmd, &vport->fc_nodename, 8); | |
7427 | ||
7428 | lpfc_set_disctmo(vport); | |
7429 | ||
7430 | phba->fc_stat.elsXmitFDISC++; | |
7431 | elsiocb->iocb_cmpl = lpfc_cmpl_els_fdisc; | |
7432 | ||
858c9f6c JS |
7433 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
7434 | "Issue FDISC: did:x%x", | |
7435 | did, 0, 0); | |
7436 | ||
92d7f7b0 JS |
7437 | rc = lpfc_issue_fabric_iocb(phba, elsiocb); |
7438 | if (rc == IOCB_ERROR) { | |
7439 | lpfc_els_free_iocb(phba, elsiocb); | |
92d7f7b0 | 7440 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
e8b62011 JS |
7441 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
7442 | "0256 Issue FDISC: Cannot send IOCB\n"); | |
92d7f7b0 JS |
7443 | return 1; |
7444 | } | |
7445 | lpfc_vport_set_state(vport, FC_VPORT_INITIALIZING); | |
92d7f7b0 JS |
7446 | return 0; |
7447 | } | |
7448 | ||
e59058c4 | 7449 | /** |
3621a710 | 7450 | * lpfc_cmpl_els_npiv_logo - Completion function with vport logo |
e59058c4 JS |
7451 | * @phba: pointer to lpfc hba data structure. |
7452 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
7453 | * @rspiocb: pointer to lpfc response iocb data structure. | |
7454 | * | |
7455 | * This routine is the completion callback function to the issuing of a LOGO | |
7456 | * ELS command off a vport. It frees the command IOCB and then decrement the | |
7457 | * reference count held on ndlp for this completion function, indicating that | |
7458 | * the reference to the ndlp is no long needed. Note that the | |
7459 | * lpfc_els_free_iocb() routine decrements the ndlp reference held for this | |
7460 | * callback function and an additional explicit ndlp reference decrementation | |
7461 | * will trigger the actual release of the ndlp. | |
7462 | **/ | |
92d7f7b0 JS |
7463 | static void |
7464 | lpfc_cmpl_els_npiv_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
7465 | struct lpfc_iocbq *rspiocb) | |
7466 | { | |
7467 | struct lpfc_vport *vport = cmdiocb->vport; | |
858c9f6c | 7468 | IOCB_t *irsp; |
e47c9093 | 7469 | struct lpfc_nodelist *ndlp; |
9589b062 | 7470 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
858c9f6c | 7471 | |
9589b062 | 7472 | ndlp = (struct lpfc_nodelist *)cmdiocb->context1; |
858c9f6c JS |
7473 | irsp = &rspiocb->iocb; |
7474 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, | |
7475 | "LOGO npiv cmpl: status:x%x/x%x did:x%x", | |
7476 | irsp->ulpStatus, irsp->un.ulpWord[4], irsp->un.rcvels.remoteID); | |
92d7f7b0 JS |
7477 | |
7478 | lpfc_els_free_iocb(phba, cmdiocb); | |
7479 | vport->unreg_vpi_cmpl = VPORT_ERROR; | |
e47c9093 JS |
7480 | |
7481 | /* Trigger the release of the ndlp after logo */ | |
7482 | lpfc_nlp_put(ndlp); | |
9589b062 JS |
7483 | |
7484 | /* NPIV LOGO completes to NPort <nlp_DID> */ | |
7485 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
7486 | "2928 NPIV LOGO completes to NPort x%x " | |
7487 | "Data: x%x x%x x%x x%x\n", | |
7488 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
7489 | irsp->ulpTimeout, vport->num_disc_nodes); | |
7490 | ||
7491 | if (irsp->ulpStatus == IOSTAT_SUCCESS) { | |
7492 | spin_lock_irq(shost->host_lock); | |
7493 | vport->fc_flag &= ~FC_FABRIC; | |
7494 | spin_unlock_irq(shost->host_lock); | |
7495 | } | |
92d7f7b0 JS |
7496 | } |
7497 | ||
e59058c4 | 7498 | /** |
3621a710 | 7499 | * lpfc_issue_els_npiv_logo - Issue a logo off a vport |
e59058c4 JS |
7500 | * @vport: pointer to a virtual N_Port data structure. |
7501 | * @ndlp: pointer to a node-list data structure. | |
7502 | * | |
7503 | * This routine issues a LOGO ELS command to an @ndlp off a @vport. | |
7504 | * | |
7505 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
7506 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
7507 | * will be stored into the context1 field of the IOCB for the completion | |
7508 | * callback function to the LOGO ELS command. | |
7509 | * | |
7510 | * Return codes | |
7511 | * 0 - Successfully issued logo off the @vport | |
7512 | * 1 - Failed to issue logo off the @vport | |
7513 | **/ | |
92d7f7b0 JS |
7514 | int |
7515 | lpfc_issue_els_npiv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) | |
7516 | { | |
7517 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
7518 | struct lpfc_hba *phba = vport->phba; | |
92d7f7b0 JS |
7519 | IOCB_t *icmd; |
7520 | struct lpfc_iocbq *elsiocb; | |
7521 | uint8_t *pcmd; | |
7522 | uint16_t cmdsize; | |
7523 | ||
7524 | cmdsize = 2 * sizeof(uint32_t) + sizeof(struct lpfc_name); | |
7525 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, ndlp->nlp_DID, | |
7526 | ELS_CMD_LOGO); | |
7527 | if (!elsiocb) | |
7528 | return 1; | |
7529 | ||
7530 | icmd = &elsiocb->iocb; | |
7531 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
7532 | *((uint32_t *) (pcmd)) = ELS_CMD_LOGO; | |
7533 | pcmd += sizeof(uint32_t); | |
7534 | ||
7535 | /* Fill in LOGO payload */ | |
7536 | *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID); | |
7537 | pcmd += sizeof(uint32_t); | |
7538 | memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name)); | |
7539 | ||
858c9f6c JS |
7540 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
7541 | "Issue LOGO npiv did:x%x flg:x%x", | |
7542 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
7543 | ||
92d7f7b0 JS |
7544 | elsiocb->iocb_cmpl = lpfc_cmpl_els_npiv_logo; |
7545 | spin_lock_irq(shost->host_lock); | |
7546 | ndlp->nlp_flag |= NLP_LOGO_SND; | |
7547 | spin_unlock_irq(shost->host_lock); | |
3772a991 JS |
7548 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
7549 | IOCB_ERROR) { | |
92d7f7b0 JS |
7550 | spin_lock_irq(shost->host_lock); |
7551 | ndlp->nlp_flag &= ~NLP_LOGO_SND; | |
7552 | spin_unlock_irq(shost->host_lock); | |
7553 | lpfc_els_free_iocb(phba, elsiocb); | |
7554 | return 1; | |
7555 | } | |
7556 | return 0; | |
7557 | } | |
7558 | ||
e59058c4 | 7559 | /** |
3621a710 | 7560 | * lpfc_fabric_block_timeout - Handler function to the fabric block timer |
e59058c4 JS |
7561 | * @ptr: holder for the timer function associated data. |
7562 | * | |
7563 | * This routine is invoked by the fabric iocb block timer after | |
7564 | * timeout. It posts the fabric iocb block timeout event by setting the | |
7565 | * WORKER_FABRIC_BLOCK_TMO bit to work port event bitmap and then invokes | |
7566 | * lpfc_worker_wake_up() routine to wake up the worker thread. It is for | |
7567 | * the worker thread to invoke the lpfc_unblock_fabric_iocbs() on the | |
7568 | * posted event WORKER_FABRIC_BLOCK_TMO. | |
7569 | **/ | |
92d7f7b0 JS |
7570 | void |
7571 | lpfc_fabric_block_timeout(unsigned long ptr) | |
7572 | { | |
7573 | struct lpfc_hba *phba = (struct lpfc_hba *) ptr; | |
7574 | unsigned long iflags; | |
7575 | uint32_t tmo_posted; | |
5e9d9b82 | 7576 | |
92d7f7b0 JS |
7577 | spin_lock_irqsave(&phba->pport->work_port_lock, iflags); |
7578 | tmo_posted = phba->pport->work_port_events & WORKER_FABRIC_BLOCK_TMO; | |
7579 | if (!tmo_posted) | |
7580 | phba->pport->work_port_events |= WORKER_FABRIC_BLOCK_TMO; | |
7581 | spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags); | |
7582 | ||
5e9d9b82 JS |
7583 | if (!tmo_posted) |
7584 | lpfc_worker_wake_up(phba); | |
7585 | return; | |
92d7f7b0 JS |
7586 | } |
7587 | ||
e59058c4 | 7588 | /** |
3621a710 | 7589 | * lpfc_resume_fabric_iocbs - Issue a fabric iocb from driver internal list |
e59058c4 JS |
7590 | * @phba: pointer to lpfc hba data structure. |
7591 | * | |
7592 | * This routine issues one fabric iocb from the driver internal list to | |
7593 | * the HBA. It first checks whether it's ready to issue one fabric iocb to | |
7594 | * the HBA (whether there is no outstanding fabric iocb). If so, it shall | |
7595 | * remove one pending fabric iocb from the driver internal list and invokes | |
7596 | * lpfc_sli_issue_iocb() routine to send the fabric iocb to the HBA. | |
7597 | **/ | |
92d7f7b0 JS |
7598 | static void |
7599 | lpfc_resume_fabric_iocbs(struct lpfc_hba *phba) | |
7600 | { | |
7601 | struct lpfc_iocbq *iocb; | |
7602 | unsigned long iflags; | |
7603 | int ret; | |
92d7f7b0 JS |
7604 | IOCB_t *cmd; |
7605 | ||
7606 | repeat: | |
7607 | iocb = NULL; | |
7608 | spin_lock_irqsave(&phba->hbalock, iflags); | |
7f5f3d0d | 7609 | /* Post any pending iocb to the SLI layer */ |
92d7f7b0 JS |
7610 | if (atomic_read(&phba->fabric_iocb_count) == 0) { |
7611 | list_remove_head(&phba->fabric_iocb_list, iocb, typeof(*iocb), | |
7612 | list); | |
7613 | if (iocb) | |
7f5f3d0d | 7614 | /* Increment fabric iocb count to hold the position */ |
92d7f7b0 JS |
7615 | atomic_inc(&phba->fabric_iocb_count); |
7616 | } | |
7617 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
7618 | if (iocb) { | |
7619 | iocb->fabric_iocb_cmpl = iocb->iocb_cmpl; | |
7620 | iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb; | |
7621 | iocb->iocb_flag |= LPFC_IO_FABRIC; | |
7622 | ||
858c9f6c JS |
7623 | lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD, |
7624 | "Fabric sched1: ste:x%x", | |
7625 | iocb->vport->port_state, 0, 0); | |
7626 | ||
3772a991 | 7627 | ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0); |
92d7f7b0 JS |
7628 | |
7629 | if (ret == IOCB_ERROR) { | |
7630 | iocb->iocb_cmpl = iocb->fabric_iocb_cmpl; | |
7631 | iocb->fabric_iocb_cmpl = NULL; | |
7632 | iocb->iocb_flag &= ~LPFC_IO_FABRIC; | |
7633 | cmd = &iocb->iocb; | |
7634 | cmd->ulpStatus = IOSTAT_LOCAL_REJECT; | |
7635 | cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; | |
7636 | iocb->iocb_cmpl(phba, iocb, iocb); | |
7637 | ||
7638 | atomic_dec(&phba->fabric_iocb_count); | |
7639 | goto repeat; | |
7640 | } | |
7641 | } | |
7642 | ||
7643 | return; | |
7644 | } | |
7645 | ||
e59058c4 | 7646 | /** |
3621a710 | 7647 | * lpfc_unblock_fabric_iocbs - Unblock issuing fabric iocb command |
e59058c4 JS |
7648 | * @phba: pointer to lpfc hba data structure. |
7649 | * | |
7650 | * This routine unblocks the issuing fabric iocb command. The function | |
7651 | * will clear the fabric iocb block bit and then invoke the routine | |
7652 | * lpfc_resume_fabric_iocbs() to issue one of the pending fabric iocb | |
7653 | * from the driver internal fabric iocb list. | |
7654 | **/ | |
92d7f7b0 JS |
7655 | void |
7656 | lpfc_unblock_fabric_iocbs(struct lpfc_hba *phba) | |
7657 | { | |
7658 | clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); | |
7659 | ||
7660 | lpfc_resume_fabric_iocbs(phba); | |
7661 | return; | |
7662 | } | |
7663 | ||
e59058c4 | 7664 | /** |
3621a710 | 7665 | * lpfc_block_fabric_iocbs - Block issuing fabric iocb command |
e59058c4 JS |
7666 | * @phba: pointer to lpfc hba data structure. |
7667 | * | |
7668 | * This routine blocks the issuing fabric iocb for a specified amount of | |
7669 | * time (currently 100 ms). This is done by set the fabric iocb block bit | |
7670 | * and set up a timeout timer for 100ms. When the block bit is set, no more | |
7671 | * fabric iocb will be issued out of the HBA. | |
7672 | **/ | |
92d7f7b0 JS |
7673 | static void |
7674 | lpfc_block_fabric_iocbs(struct lpfc_hba *phba) | |
7675 | { | |
7676 | int blocked; | |
7677 | ||
7678 | blocked = test_and_set_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); | |
7f5f3d0d | 7679 | /* Start a timer to unblock fabric iocbs after 100ms */ |
92d7f7b0 JS |
7680 | if (!blocked) |
7681 | mod_timer(&phba->fabric_block_timer, jiffies + HZ/10 ); | |
7682 | ||
7683 | return; | |
7684 | } | |
7685 | ||
e59058c4 | 7686 | /** |
3621a710 | 7687 | * lpfc_cmpl_fabric_iocb - Completion callback function for fabric iocb |
e59058c4 JS |
7688 | * @phba: pointer to lpfc hba data structure. |
7689 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
7690 | * @rspiocb: pointer to lpfc response iocb data structure. | |
7691 | * | |
7692 | * This routine is the callback function that is put to the fabric iocb's | |
7693 | * callback function pointer (iocb->iocb_cmpl). The original iocb's callback | |
7694 | * function pointer has been stored in iocb->fabric_iocb_cmpl. This callback | |
7695 | * function first restores and invokes the original iocb's callback function | |
7696 | * and then invokes the lpfc_resume_fabric_iocbs() routine to issue the next | |
7697 | * fabric bound iocb from the driver internal fabric iocb list onto the wire. | |
7698 | **/ | |
92d7f7b0 JS |
7699 | static void |
7700 | lpfc_cmpl_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
7701 | struct lpfc_iocbq *rspiocb) | |
7702 | { | |
7703 | struct ls_rjt stat; | |
7704 | ||
7705 | if ((cmdiocb->iocb_flag & LPFC_IO_FABRIC) != LPFC_IO_FABRIC) | |
7706 | BUG(); | |
7707 | ||
7708 | switch (rspiocb->iocb.ulpStatus) { | |
7709 | case IOSTAT_NPORT_RJT: | |
7710 | case IOSTAT_FABRIC_RJT: | |
7711 | if (rspiocb->iocb.un.ulpWord[4] & RJT_UNAVAIL_TEMP) { | |
7712 | lpfc_block_fabric_iocbs(phba); | |
ed957684 | 7713 | } |
92d7f7b0 JS |
7714 | break; |
7715 | ||
7716 | case IOSTAT_NPORT_BSY: | |
7717 | case IOSTAT_FABRIC_BSY: | |
7718 | lpfc_block_fabric_iocbs(phba); | |
7719 | break; | |
7720 | ||
7721 | case IOSTAT_LS_RJT: | |
7722 | stat.un.lsRjtError = | |
7723 | be32_to_cpu(rspiocb->iocb.un.ulpWord[4]); | |
7724 | if ((stat.un.b.lsRjtRsnCode == LSRJT_UNABLE_TPC) || | |
7725 | (stat.un.b.lsRjtRsnCode == LSRJT_LOGICAL_BSY)) | |
7726 | lpfc_block_fabric_iocbs(phba); | |
7727 | break; | |
7728 | } | |
7729 | ||
7730 | if (atomic_read(&phba->fabric_iocb_count) == 0) | |
7731 | BUG(); | |
7732 | ||
7733 | cmdiocb->iocb_cmpl = cmdiocb->fabric_iocb_cmpl; | |
7734 | cmdiocb->fabric_iocb_cmpl = NULL; | |
7735 | cmdiocb->iocb_flag &= ~LPFC_IO_FABRIC; | |
7736 | cmdiocb->iocb_cmpl(phba, cmdiocb, rspiocb); | |
7737 | ||
7738 | atomic_dec(&phba->fabric_iocb_count); | |
7739 | if (!test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags)) { | |
7f5f3d0d JS |
7740 | /* Post any pending iocbs to HBA */ |
7741 | lpfc_resume_fabric_iocbs(phba); | |
92d7f7b0 JS |
7742 | } |
7743 | } | |
7744 | ||
e59058c4 | 7745 | /** |
3621a710 | 7746 | * lpfc_issue_fabric_iocb - Issue a fabric iocb command |
e59058c4 JS |
7747 | * @phba: pointer to lpfc hba data structure. |
7748 | * @iocb: pointer to lpfc command iocb data structure. | |
7749 | * | |
7750 | * This routine is used as the top-level API for issuing a fabric iocb command | |
7751 | * such as FLOGI and FDISC. To accommodate certain switch fabric, this driver | |
7752 | * function makes sure that only one fabric bound iocb will be outstanding at | |
7753 | * any given time. As such, this function will first check to see whether there | |
7754 | * is already an outstanding fabric iocb on the wire. If so, it will put the | |
7755 | * newly issued iocb onto the driver internal fabric iocb list, waiting to be | |
7756 | * issued later. Otherwise, it will issue the iocb on the wire and update the | |
7757 | * fabric iocb count it indicate that there is one fabric iocb on the wire. | |
7758 | * | |
7759 | * Note, this implementation has a potential sending out fabric IOCBs out of | |
7760 | * order. The problem is caused by the construction of the "ready" boolen does | |
7761 | * not include the condition that the internal fabric IOCB list is empty. As | |
7762 | * such, it is possible a fabric IOCB issued by this routine might be "jump" | |
7763 | * ahead of the fabric IOCBs in the internal list. | |
7764 | * | |
7765 | * Return code | |
7766 | * IOCB_SUCCESS - either fabric iocb put on the list or issued successfully | |
7767 | * IOCB_ERROR - failed to issue fabric iocb | |
7768 | **/ | |
a6ababd2 | 7769 | static int |
92d7f7b0 JS |
7770 | lpfc_issue_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *iocb) |
7771 | { | |
7772 | unsigned long iflags; | |
92d7f7b0 JS |
7773 | int ready; |
7774 | int ret; | |
7775 | ||
7776 | if (atomic_read(&phba->fabric_iocb_count) > 1) | |
7777 | BUG(); | |
7778 | ||
7779 | spin_lock_irqsave(&phba->hbalock, iflags); | |
7780 | ready = atomic_read(&phba->fabric_iocb_count) == 0 && | |
7781 | !test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); | |
7782 | ||
7f5f3d0d JS |
7783 | if (ready) |
7784 | /* Increment fabric iocb count to hold the position */ | |
7785 | atomic_inc(&phba->fabric_iocb_count); | |
92d7f7b0 JS |
7786 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
7787 | if (ready) { | |
7788 | iocb->fabric_iocb_cmpl = iocb->iocb_cmpl; | |
7789 | iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb; | |
7790 | iocb->iocb_flag |= LPFC_IO_FABRIC; | |
7791 | ||
858c9f6c JS |
7792 | lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD, |
7793 | "Fabric sched2: ste:x%x", | |
7794 | iocb->vport->port_state, 0, 0); | |
7795 | ||
3772a991 | 7796 | ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0); |
92d7f7b0 JS |
7797 | |
7798 | if (ret == IOCB_ERROR) { | |
7799 | iocb->iocb_cmpl = iocb->fabric_iocb_cmpl; | |
7800 | iocb->fabric_iocb_cmpl = NULL; | |
7801 | iocb->iocb_flag &= ~LPFC_IO_FABRIC; | |
7802 | atomic_dec(&phba->fabric_iocb_count); | |
7803 | } | |
7804 | } else { | |
7805 | spin_lock_irqsave(&phba->hbalock, iflags); | |
7806 | list_add_tail(&iocb->list, &phba->fabric_iocb_list); | |
7807 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
7808 | ret = IOCB_SUCCESS; | |
7809 | } | |
7810 | return ret; | |
7811 | } | |
7812 | ||
e59058c4 | 7813 | /** |
3621a710 | 7814 | * lpfc_fabric_abort_vport - Abort a vport's iocbs from driver fabric iocb list |
e59058c4 JS |
7815 | * @vport: pointer to a virtual N_Port data structure. |
7816 | * | |
7817 | * This routine aborts all the IOCBs associated with a @vport from the | |
7818 | * driver internal fabric IOCB list. The list contains fabric IOCBs to be | |
7819 | * issued to the ELS IOCB ring. This abort function walks the fabric IOCB | |
7820 | * list, removes each IOCB associated with the @vport off the list, set the | |
7821 | * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function | |
7822 | * associated with the IOCB. | |
7823 | **/ | |
a6ababd2 | 7824 | static void lpfc_fabric_abort_vport(struct lpfc_vport *vport) |
92d7f7b0 JS |
7825 | { |
7826 | LIST_HEAD(completions); | |
7827 | struct lpfc_hba *phba = vport->phba; | |
7828 | struct lpfc_iocbq *tmp_iocb, *piocb; | |
92d7f7b0 JS |
7829 | |
7830 | spin_lock_irq(&phba->hbalock); | |
7831 | list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list, | |
7832 | list) { | |
7833 | ||
7834 | if (piocb->vport != vport) | |
7835 | continue; | |
7836 | ||
7837 | list_move_tail(&piocb->list, &completions); | |
7838 | } | |
7839 | spin_unlock_irq(&phba->hbalock); | |
7840 | ||
a257bf90 JS |
7841 | /* Cancel all the IOCBs from the completions list */ |
7842 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
7843 | IOERR_SLI_ABORTED); | |
92d7f7b0 JS |
7844 | } |
7845 | ||
e59058c4 | 7846 | /** |
3621a710 | 7847 | * lpfc_fabric_abort_nport - Abort a ndlp's iocbs from driver fabric iocb list |
e59058c4 JS |
7848 | * @ndlp: pointer to a node-list data structure. |
7849 | * | |
7850 | * This routine aborts all the IOCBs associated with an @ndlp from the | |
7851 | * driver internal fabric IOCB list. The list contains fabric IOCBs to be | |
7852 | * issued to the ELS IOCB ring. This abort function walks the fabric IOCB | |
7853 | * list, removes each IOCB associated with the @ndlp off the list, set the | |
7854 | * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function | |
7855 | * associated with the IOCB. | |
7856 | **/ | |
92d7f7b0 JS |
7857 | void lpfc_fabric_abort_nport(struct lpfc_nodelist *ndlp) |
7858 | { | |
7859 | LIST_HEAD(completions); | |
a257bf90 | 7860 | struct lpfc_hba *phba = ndlp->phba; |
92d7f7b0 JS |
7861 | struct lpfc_iocbq *tmp_iocb, *piocb; |
7862 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; | |
92d7f7b0 JS |
7863 | |
7864 | spin_lock_irq(&phba->hbalock); | |
7865 | list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list, | |
7866 | list) { | |
7867 | if ((lpfc_check_sli_ndlp(phba, pring, piocb, ndlp))) { | |
7868 | ||
7869 | list_move_tail(&piocb->list, &completions); | |
ed957684 | 7870 | } |
dea3101e | 7871 | } |
92d7f7b0 JS |
7872 | spin_unlock_irq(&phba->hbalock); |
7873 | ||
a257bf90 JS |
7874 | /* Cancel all the IOCBs from the completions list */ |
7875 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
7876 | IOERR_SLI_ABORTED); | |
92d7f7b0 JS |
7877 | } |
7878 | ||
e59058c4 | 7879 | /** |
3621a710 | 7880 | * lpfc_fabric_abort_hba - Abort all iocbs on driver fabric iocb list |
e59058c4 JS |
7881 | * @phba: pointer to lpfc hba data structure. |
7882 | * | |
7883 | * This routine aborts all the IOCBs currently on the driver internal | |
7884 | * fabric IOCB list. The list contains fabric IOCBs to be issued to the ELS | |
7885 | * IOCB ring. This function takes the entire IOCB list off the fabric IOCB | |
7886 | * list, removes IOCBs off the list, set the status feild to | |
7887 | * IOSTAT_LOCAL_REJECT, and invokes the callback function associated with | |
7888 | * the IOCB. | |
7889 | **/ | |
92d7f7b0 JS |
7890 | void lpfc_fabric_abort_hba(struct lpfc_hba *phba) |
7891 | { | |
7892 | LIST_HEAD(completions); | |
92d7f7b0 JS |
7893 | |
7894 | spin_lock_irq(&phba->hbalock); | |
7895 | list_splice_init(&phba->fabric_iocb_list, &completions); | |
7896 | spin_unlock_irq(&phba->hbalock); | |
7897 | ||
a257bf90 JS |
7898 | /* Cancel all the IOCBs from the completions list */ |
7899 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
7900 | IOERR_SLI_ABORTED); | |
dea3101e | 7901 | } |
6fb120a7 | 7902 | |
1151e3ec JS |
7903 | /** |
7904 | * lpfc_sli4_vport_delete_els_xri_aborted -Remove all ndlp references for vport | |
7905 | * @vport: pointer to lpfc vport data structure. | |
7906 | * | |
7907 | * This routine is invoked by the vport cleanup for deletions and the cleanup | |
7908 | * for an ndlp on removal. | |
7909 | **/ | |
7910 | void | |
7911 | lpfc_sli4_vport_delete_els_xri_aborted(struct lpfc_vport *vport) | |
7912 | { | |
7913 | struct lpfc_hba *phba = vport->phba; | |
7914 | struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; | |
7915 | unsigned long iflag = 0; | |
7916 | ||
7917 | spin_lock_irqsave(&phba->hbalock, iflag); | |
7918 | spin_lock(&phba->sli4_hba.abts_sgl_list_lock); | |
7919 | list_for_each_entry_safe(sglq_entry, sglq_next, | |
7920 | &phba->sli4_hba.lpfc_abts_els_sgl_list, list) { | |
7921 | if (sglq_entry->ndlp && sglq_entry->ndlp->vport == vport) | |
7922 | sglq_entry->ndlp = NULL; | |
7923 | } | |
7924 | spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); | |
7925 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
7926 | return; | |
7927 | } | |
7928 | ||
6fb120a7 JS |
7929 | /** |
7930 | * lpfc_sli4_els_xri_aborted - Slow-path process of els xri abort | |
7931 | * @phba: pointer to lpfc hba data structure. | |
7932 | * @axri: pointer to the els xri abort wcqe structure. | |
7933 | * | |
7934 | * This routine is invoked by the worker thread to process a SLI4 slow-path | |
7935 | * ELS aborted xri. | |
7936 | **/ | |
7937 | void | |
7938 | lpfc_sli4_els_xri_aborted(struct lpfc_hba *phba, | |
7939 | struct sli4_wcqe_xri_aborted *axri) | |
7940 | { | |
7941 | uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri); | |
19ca7609 | 7942 | uint16_t rxid = bf_get(lpfc_wcqe_xa_remote_xid, axri); |
7851fe2c | 7943 | uint16_t lxri = 0; |
19ca7609 | 7944 | |
6fb120a7 JS |
7945 | struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; |
7946 | unsigned long iflag = 0; | |
19ca7609 | 7947 | struct lpfc_nodelist *ndlp; |
589a52d6 | 7948 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; |
6fb120a7 | 7949 | |
0f65ff68 JS |
7950 | spin_lock_irqsave(&phba->hbalock, iflag); |
7951 | spin_lock(&phba->sli4_hba.abts_sgl_list_lock); | |
6fb120a7 JS |
7952 | list_for_each_entry_safe(sglq_entry, sglq_next, |
7953 | &phba->sli4_hba.lpfc_abts_els_sgl_list, list) { | |
7954 | if (sglq_entry->sli4_xritag == xri) { | |
7955 | list_del(&sglq_entry->list); | |
19ca7609 JS |
7956 | ndlp = sglq_entry->ndlp; |
7957 | sglq_entry->ndlp = NULL; | |
6fb120a7 JS |
7958 | list_add_tail(&sglq_entry->list, |
7959 | &phba->sli4_hba.lpfc_sgl_list); | |
0f65ff68 JS |
7960 | sglq_entry->state = SGL_FREED; |
7961 | spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); | |
6fb120a7 | 7962 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
ee0f4fe1 JS |
7963 | lpfc_set_rrq_active(phba, ndlp, |
7964 | sglq_entry->sli4_lxritag, | |
7965 | rxid, 1); | |
589a52d6 JS |
7966 | |
7967 | /* Check if TXQ queue needs to be serviced */ | |
7968 | if (pring->txq_cnt) | |
7969 | lpfc_worker_wake_up(phba); | |
6fb120a7 JS |
7970 | return; |
7971 | } | |
7972 | } | |
0f65ff68 | 7973 | spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); |
7851fe2c JS |
7974 | lxri = lpfc_sli4_xri_inrange(phba, xri); |
7975 | if (lxri == NO_XRI) { | |
7976 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
7977 | return; | |
7978 | } | |
7979 | sglq_entry = __lpfc_get_active_sglq(phba, lxri); | |
0f65ff68 JS |
7980 | if (!sglq_entry || (sglq_entry->sli4_xritag != xri)) { |
7981 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
7982 | return; | |
7983 | } | |
7984 | sglq_entry->state = SGL_XRI_ABORTED; | |
7985 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
7986 | return; | |
6fb120a7 | 7987 | } |