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dea3101e | 1 | /******************************************************************* |
2 | * This file is part of the Emulex Linux Device Driver for * | |
c44ce173 | 3 | * Fibre Channel Host Bus Adapters. * |
16a59fb3 | 4 | * Copyright (C) 2004-2014 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 | 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 | 22 | #include <linux/blkdev.h> |
23 | #include <linux/pci.h> | |
5a0e3ad6 | 24 | #include <linux/slab.h> |
dea3101e | 25 | #include <linux/interrupt.h> |
26 | ||
91886523 | 27 | #include <scsi/scsi.h> |
dea3101e | 28 | #include <scsi/scsi_device.h> |
29 | #include <scsi/scsi_host.h> | |
30 | #include <scsi/scsi_transport_fc.h> | |
31 | ||
e74c03c8 | 32 | |
da0436e9 | 33 | #include "lpfc_hw4.h" |
dea3101e | 34 | #include "lpfc_hw.h" |
35 | #include "lpfc_sli.h" | |
da0436e9 | 36 | #include "lpfc_sli4.h" |
ea2151b4 | 37 | #include "lpfc_nl.h" |
dea3101e | 38 | #include "lpfc_disc.h" |
39 | #include "lpfc_scsi.h" | |
40 | #include "lpfc.h" | |
41 | #include "lpfc_logmsg.h" | |
42 | #include "lpfc_crtn.h" | |
92d7f7b0 | 43 | #include "lpfc_vport.h" |
858c9f6c | 44 | #include "lpfc_debugfs.h" |
dea3101e | 45 | |
46 | static int lpfc_els_retry(struct lpfc_hba *, struct lpfc_iocbq *, | |
47 | struct lpfc_iocbq *); | |
92d7f7b0 JS |
48 | static void lpfc_cmpl_fabric_iocb(struct lpfc_hba *, struct lpfc_iocbq *, |
49 | struct lpfc_iocbq *); | |
a6ababd2 AB |
50 | static void lpfc_fabric_abort_vport(struct lpfc_vport *vport); |
51 | static int lpfc_issue_els_fdisc(struct lpfc_vport *vport, | |
52 | struct lpfc_nodelist *ndlp, uint8_t retry); | |
53 | static int lpfc_issue_fabric_iocb(struct lpfc_hba *phba, | |
54 | struct lpfc_iocbq *iocb); | |
92d7f7b0 | 55 | |
dea3101e | 56 | static int lpfc_max_els_tries = 3; |
57 | ||
e59058c4 | 58 | /** |
3621a710 | 59 | * lpfc_els_chk_latt - Check host link attention event for a vport |
e59058c4 JS |
60 | * @vport: pointer to a host virtual N_Port data structure. |
61 | * | |
62 | * This routine checks whether there is an outstanding host link | |
63 | * attention event during the discovery process with the @vport. It is done | |
64 | * by reading the HBA's Host Attention (HA) register. If there is any host | |
65 | * link attention events during this @vport's discovery process, the @vport | |
66 | * shall be marked as FC_ABORT_DISCOVERY, a host link attention clear shall | |
67 | * be issued if the link state is not already in host link cleared state, | |
68 | * and a return code shall indicate whether the host link attention event | |
69 | * had happened. | |
70 | * | |
71 | * Note that, if either the host link is in state LPFC_LINK_DOWN or @vport | |
72 | * state in LPFC_VPORT_READY, the request for checking host link attention | |
73 | * event will be ignored and a return code shall indicate no host link | |
74 | * attention event had happened. | |
75 | * | |
76 | * Return codes | |
77 | * 0 - no host link attention event happened | |
78 | * 1 - host link attention event happened | |
79 | **/ | |
858c9f6c | 80 | int |
2e0fef85 | 81 | lpfc_els_chk_latt(struct lpfc_vport *vport) |
dea3101e | 82 | { |
2e0fef85 JS |
83 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
84 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 85 | uint32_t ha_copy; |
dea3101e | 86 | |
2e0fef85 | 87 | if (vport->port_state >= LPFC_VPORT_READY || |
3772a991 JS |
88 | phba->link_state == LPFC_LINK_DOWN || |
89 | phba->sli_rev > LPFC_SLI_REV3) | |
dea3101e | 90 | return 0; |
91 | ||
92 | /* Read the HBA Host Attention Register */ | |
9940b97b JS |
93 | if (lpfc_readl(phba->HAregaddr, &ha_copy)) |
94 | return 1; | |
dea3101e | 95 | |
96 | if (!(ha_copy & HA_LATT)) | |
97 | return 0; | |
98 | ||
99 | /* Pending Link Event during Discovery */ | |
e8b62011 JS |
100 | lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, |
101 | "0237 Pending Link Event during " | |
102 | "Discovery: State x%x\n", | |
103 | phba->pport->port_state); | |
dea3101e | 104 | |
105 | /* CLEAR_LA should re-enable link attention events and | |
25985edc | 106 | * we should then immediately take a LATT event. The |
dea3101e | 107 | * LATT processing should call lpfc_linkdown() which |
108 | * will cleanup any left over in-progress discovery | |
109 | * events. | |
110 | */ | |
2e0fef85 JS |
111 | spin_lock_irq(shost->host_lock); |
112 | vport->fc_flag |= FC_ABORT_DISCOVERY; | |
113 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 114 | |
92d7f7b0 | 115 | if (phba->link_state != LPFC_CLEAR_LA) |
ed957684 | 116 | lpfc_issue_clear_la(phba, vport); |
dea3101e | 117 | |
c9f8735b | 118 | return 1; |
dea3101e | 119 | } |
120 | ||
e59058c4 | 121 | /** |
3621a710 | 122 | * lpfc_prep_els_iocb - Allocate and prepare a lpfc iocb data structure |
e59058c4 JS |
123 | * @vport: pointer to a host virtual N_Port data structure. |
124 | * @expectRsp: flag indicating whether response is expected. | |
125 | * @cmdSize: size of the ELS command. | |
126 | * @retry: number of retries to the command IOCB when it fails. | |
127 | * @ndlp: pointer to a node-list data structure. | |
128 | * @did: destination identifier. | |
129 | * @elscmd: the ELS command code. | |
130 | * | |
131 | * This routine is used for allocating a lpfc-IOCB data structure from | |
132 | * the driver lpfc-IOCB free-list and prepare the IOCB with the parameters | |
133 | * passed into the routine for discovery state machine to issue an Extended | |
134 | * Link Service (ELS) commands. It is a generic lpfc-IOCB allocation | |
135 | * and preparation routine that is used by all the discovery state machine | |
136 | * routines and the ELS command-specific fields will be later set up by | |
137 | * the individual discovery machine routines after calling this routine | |
138 | * allocating and preparing a generic IOCB data structure. It fills in the | |
139 | * Buffer Descriptor Entries (BDEs), allocates buffers for both command | |
140 | * payload and response payload (if expected). The reference count on the | |
141 | * ndlp is incremented by 1 and the reference to the ndlp is put into | |
142 | * context1 of the IOCB data structure for this IOCB to hold the ndlp | |
143 | * reference for the command's callback function to access later. | |
144 | * | |
145 | * Return code | |
146 | * Pointer to the newly allocated/prepared els iocb data structure | |
147 | * NULL - when els iocb data structure allocation/preparation failed | |
148 | **/ | |
f1c3b0fc | 149 | struct lpfc_iocbq * |
2e0fef85 JS |
150 | lpfc_prep_els_iocb(struct lpfc_vport *vport, uint8_t expectRsp, |
151 | uint16_t cmdSize, uint8_t retry, | |
152 | struct lpfc_nodelist *ndlp, uint32_t did, | |
153 | uint32_t elscmd) | |
dea3101e | 154 | { |
2e0fef85 | 155 | struct lpfc_hba *phba = vport->phba; |
0bd4ca25 | 156 | struct lpfc_iocbq *elsiocb; |
dea3101e | 157 | struct lpfc_dmabuf *pcmd, *prsp, *pbuflist; |
158 | struct ulp_bde64 *bpl; | |
159 | IOCB_t *icmd; | |
160 | ||
dea3101e | 161 | |
2e0fef85 JS |
162 | if (!lpfc_is_link_up(phba)) |
163 | return NULL; | |
dea3101e | 164 | |
dea3101e | 165 | /* Allocate buffer for command iocb */ |
0bd4ca25 | 166 | elsiocb = lpfc_sli_get_iocbq(phba); |
dea3101e | 167 | |
168 | if (elsiocb == NULL) | |
169 | return NULL; | |
e47c9093 | 170 | |
0c287589 JS |
171 | /* |
172 | * If this command is for fabric controller and HBA running | |
173 | * in FIP mode send FLOGI, FDISC and LOGO as FIP frames. | |
174 | */ | |
175 | if ((did == Fabric_DID) && | |
45ed1190 | 176 | (phba->hba_flag & HBA_FIP_SUPPORT) && |
0c287589 JS |
177 | ((elscmd == ELS_CMD_FLOGI) || |
178 | (elscmd == ELS_CMD_FDISC) || | |
179 | (elscmd == ELS_CMD_LOGO))) | |
c868595d JS |
180 | switch (elscmd) { |
181 | case ELS_CMD_FLOGI: | |
f0d9bccc JS |
182 | elsiocb->iocb_flag |= |
183 | ((LPFC_ELS_ID_FLOGI << LPFC_FIP_ELS_ID_SHIFT) | |
c868595d JS |
184 | & LPFC_FIP_ELS_ID_MASK); |
185 | break; | |
186 | case ELS_CMD_FDISC: | |
f0d9bccc JS |
187 | elsiocb->iocb_flag |= |
188 | ((LPFC_ELS_ID_FDISC << LPFC_FIP_ELS_ID_SHIFT) | |
c868595d JS |
189 | & LPFC_FIP_ELS_ID_MASK); |
190 | break; | |
191 | case ELS_CMD_LOGO: | |
f0d9bccc JS |
192 | elsiocb->iocb_flag |= |
193 | ((LPFC_ELS_ID_LOGO << LPFC_FIP_ELS_ID_SHIFT) | |
c868595d JS |
194 | & LPFC_FIP_ELS_ID_MASK); |
195 | break; | |
196 | } | |
0c287589 | 197 | else |
c868595d | 198 | elsiocb->iocb_flag &= ~LPFC_FIP_ELS_ID_MASK; |
0c287589 | 199 | |
dea3101e | 200 | icmd = &elsiocb->iocb; |
201 | ||
202 | /* fill in BDEs for command */ | |
203 | /* Allocate buffer for command payload */ | |
98c9ea5c JS |
204 | pcmd = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
205 | if (pcmd) | |
206 | pcmd->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &pcmd->phys); | |
fa4066b6 JS |
207 | if (!pcmd || !pcmd->virt) |
208 | goto els_iocb_free_pcmb_exit; | |
dea3101e | 209 | |
210 | INIT_LIST_HEAD(&pcmd->list); | |
211 | ||
212 | /* Allocate buffer for response payload */ | |
213 | if (expectRsp) { | |
92d7f7b0 | 214 | prsp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
dea3101e | 215 | if (prsp) |
216 | prsp->virt = lpfc_mbuf_alloc(phba, MEM_PRI, | |
217 | &prsp->phys); | |
fa4066b6 JS |
218 | if (!prsp || !prsp->virt) |
219 | goto els_iocb_free_prsp_exit; | |
dea3101e | 220 | INIT_LIST_HEAD(&prsp->list); |
e47c9093 | 221 | } else |
dea3101e | 222 | prsp = NULL; |
dea3101e | 223 | |
224 | /* Allocate buffer for Buffer ptr list */ | |
92d7f7b0 | 225 | pbuflist = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
dea3101e | 226 | if (pbuflist) |
ed957684 JS |
227 | pbuflist->virt = lpfc_mbuf_alloc(phba, MEM_PRI, |
228 | &pbuflist->phys); | |
fa4066b6 JS |
229 | if (!pbuflist || !pbuflist->virt) |
230 | goto els_iocb_free_pbuf_exit; | |
dea3101e | 231 | |
232 | INIT_LIST_HEAD(&pbuflist->list); | |
233 | ||
dea3101e | 234 | if (expectRsp) { |
939723a4 JS |
235 | icmd->un.elsreq64.bdl.addrHigh = putPaddrHigh(pbuflist->phys); |
236 | icmd->un.elsreq64.bdl.addrLow = putPaddrLow(pbuflist->phys); | |
237 | icmd->un.elsreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; | |
92d7f7b0 | 238 | icmd->un.elsreq64.bdl.bdeSize = (2 * sizeof(struct ulp_bde64)); |
939723a4 JS |
239 | |
240 | icmd->un.elsreq64.remoteID = did; /* DID */ | |
dea3101e | 241 | icmd->ulpCommand = CMD_ELS_REQUEST64_CR; |
88f43a08 JS |
242 | if (elscmd == ELS_CMD_FLOGI) |
243 | icmd->ulpTimeout = FF_DEF_RATOV * 2; | |
244 | else | |
245 | icmd->ulpTimeout = phba->fc_ratov * 2; | |
dea3101e | 246 | } else { |
939723a4 JS |
247 | icmd->un.xseq64.bdl.addrHigh = putPaddrHigh(pbuflist->phys); |
248 | icmd->un.xseq64.bdl.addrLow = putPaddrLow(pbuflist->phys); | |
249 | icmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; | |
250 | icmd->un.xseq64.bdl.bdeSize = sizeof(struct ulp_bde64); | |
251 | icmd->un.xseq64.xmit_els_remoteID = did; /* DID */ | |
dea3101e | 252 | icmd->ulpCommand = CMD_XMIT_ELS_RSP64_CX; |
253 | } | |
dea3101e | 254 | icmd->ulpBdeCount = 1; |
255 | icmd->ulpLe = 1; | |
256 | icmd->ulpClass = CLASS3; | |
257 | ||
939723a4 JS |
258 | /* |
259 | * If we have NPIV enabled, we want to send ELS traffic by VPI. | |
260 | * For SLI4, since the driver controls VPIs we also want to include | |
261 | * all ELS pt2pt protocol traffic as well. | |
262 | */ | |
263 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) || | |
264 | ((phba->sli_rev == LPFC_SLI_REV4) && | |
265 | (vport->fc_flag & FC_PT2PT))) { | |
266 | ||
267 | if (expectRsp) { | |
268 | icmd->un.elsreq64.myID = vport->fc_myDID; | |
269 | ||
270 | /* For ELS_REQUEST64_CR, use the VPI by default */ | |
271 | icmd->ulpContext = phba->vpi_ids[vport->vpi]; | |
272 | } | |
92d7f7b0 | 273 | |
92d7f7b0 | 274 | icmd->ulpCt_h = 0; |
eada272d JS |
275 | /* The CT field must be 0=INVALID_RPI for the ECHO cmd */ |
276 | if (elscmd == ELS_CMD_ECHO) | |
277 | icmd->ulpCt_l = 0; /* context = invalid RPI */ | |
278 | else | |
279 | icmd->ulpCt_l = 1; /* context = VPI */ | |
92d7f7b0 JS |
280 | } |
281 | ||
dea3101e | 282 | bpl = (struct ulp_bde64 *) pbuflist->virt; |
283 | bpl->addrLow = le32_to_cpu(putPaddrLow(pcmd->phys)); | |
284 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(pcmd->phys)); | |
285 | bpl->tus.f.bdeSize = cmdSize; | |
286 | bpl->tus.f.bdeFlags = 0; | |
287 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
288 | ||
289 | if (expectRsp) { | |
290 | bpl++; | |
291 | bpl->addrLow = le32_to_cpu(putPaddrLow(prsp->phys)); | |
292 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(prsp->phys)); | |
293 | bpl->tus.f.bdeSize = FCELSSIZE; | |
34b02dcd | 294 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; |
dea3101e | 295 | bpl->tus.w = le32_to_cpu(bpl->tus.w); |
296 | } | |
297 | ||
fa4066b6 | 298 | /* prevent preparing iocb with NULL ndlp reference */ |
51ef4c26 | 299 | elsiocb->context1 = lpfc_nlp_get(ndlp); |
fa4066b6 JS |
300 | if (!elsiocb->context1) |
301 | goto els_iocb_free_pbuf_exit; | |
329f9bc7 JS |
302 | elsiocb->context2 = pcmd; |
303 | elsiocb->context3 = pbuflist; | |
dea3101e | 304 | elsiocb->retry = retry; |
2e0fef85 | 305 | elsiocb->vport = vport; |
dea3101e | 306 | elsiocb->drvrTimeout = (phba->fc_ratov << 1) + LPFC_DRVR_TIMEOUT; |
307 | ||
308 | if (prsp) { | |
309 | list_add(&prsp->list, &pcmd->list); | |
310 | } | |
dea3101e | 311 | if (expectRsp) { |
312 | /* Xmit ELS command <elsCmd> to remote NPORT <did> */ | |
e8b62011 JS |
313 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
314 | "0116 Xmit ELS command x%x to remote " | |
e74c03c8 JS |
315 | "NPORT x%x I/O tag: x%x, port state:x%x" |
316 | " fc_flag:x%x\n", | |
e8b62011 | 317 | elscmd, did, elsiocb->iotag, |
e74c03c8 JS |
318 | vport->port_state, |
319 | vport->fc_flag); | |
dea3101e | 320 | } else { |
321 | /* Xmit ELS response <elsCmd> to remote NPORT <did> */ | |
e8b62011 JS |
322 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
323 | "0117 Xmit ELS response x%x to remote " | |
e74c03c8 JS |
324 | "NPORT x%x I/O tag: x%x, size: x%x " |
325 | "port_state x%x fc_flag x%x\n", | |
e8b62011 | 326 | elscmd, ndlp->nlp_DID, elsiocb->iotag, |
e74c03c8 JS |
327 | cmdSize, vport->port_state, |
328 | vport->fc_flag); | |
dea3101e | 329 | } |
c9f8735b | 330 | return elsiocb; |
dea3101e | 331 | |
fa4066b6 | 332 | els_iocb_free_pbuf_exit: |
eaf15d5b JS |
333 | if (expectRsp) |
334 | lpfc_mbuf_free(phba, prsp->virt, prsp->phys); | |
fa4066b6 JS |
335 | kfree(pbuflist); |
336 | ||
337 | els_iocb_free_prsp_exit: | |
338 | lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys); | |
339 | kfree(prsp); | |
340 | ||
341 | els_iocb_free_pcmb_exit: | |
342 | kfree(pcmd); | |
343 | lpfc_sli_release_iocbq(phba, elsiocb); | |
344 | return NULL; | |
345 | } | |
dea3101e | 346 | |
e59058c4 | 347 | /** |
3621a710 | 348 | * lpfc_issue_fabric_reglogin - Issue fabric registration login for a vport |
e59058c4 JS |
349 | * @vport: pointer to a host virtual N_Port data structure. |
350 | * | |
351 | * This routine issues a fabric registration login for a @vport. An | |
352 | * active ndlp node with Fabric_DID must already exist for this @vport. | |
353 | * The routine invokes two mailbox commands to carry out fabric registration | |
354 | * login through the HBA firmware: the first mailbox command requests the | |
355 | * HBA to perform link configuration for the @vport; and the second mailbox | |
356 | * command requests the HBA to perform the actual fabric registration login | |
357 | * with the @vport. | |
358 | * | |
359 | * Return code | |
360 | * 0 - successfully issued fabric registration login for @vport | |
361 | * -ENXIO -- failed to issue fabric registration login for @vport | |
362 | **/ | |
3772a991 | 363 | int |
92d7f7b0 | 364 | lpfc_issue_fabric_reglogin(struct lpfc_vport *vport) |
dea3101e | 365 | { |
2e0fef85 | 366 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 367 | LPFC_MBOXQ_t *mbox; |
14691150 | 368 | struct lpfc_dmabuf *mp; |
92d7f7b0 JS |
369 | struct lpfc_nodelist *ndlp; |
370 | struct serv_parm *sp; | |
dea3101e | 371 | int rc; |
98c9ea5c | 372 | int err = 0; |
dea3101e | 373 | |
92d7f7b0 JS |
374 | sp = &phba->fc_fabparam; |
375 | ndlp = lpfc_findnode_did(vport, Fabric_DID); | |
e47c9093 | 376 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { |
98c9ea5c | 377 | err = 1; |
92d7f7b0 | 378 | goto fail; |
98c9ea5c | 379 | } |
92d7f7b0 JS |
380 | |
381 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
98c9ea5c JS |
382 | if (!mbox) { |
383 | err = 2; | |
92d7f7b0 | 384 | goto fail; |
98c9ea5c | 385 | } |
92d7f7b0 JS |
386 | |
387 | vport->port_state = LPFC_FABRIC_CFG_LINK; | |
388 | lpfc_config_link(phba, mbox); | |
389 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
390 | mbox->vport = vport; | |
391 | ||
0b727fea | 392 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
98c9ea5c JS |
393 | if (rc == MBX_NOT_FINISHED) { |
394 | err = 3; | |
92d7f7b0 | 395 | goto fail_free_mbox; |
98c9ea5c | 396 | } |
92d7f7b0 JS |
397 | |
398 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
98c9ea5c JS |
399 | if (!mbox) { |
400 | err = 4; | |
92d7f7b0 | 401 | goto fail; |
98c9ea5c | 402 | } |
4042629e JS |
403 | rc = lpfc_reg_rpi(phba, vport->vpi, Fabric_DID, (uint8_t *)sp, mbox, |
404 | ndlp->nlp_rpi); | |
98c9ea5c JS |
405 | if (rc) { |
406 | err = 5; | |
92d7f7b0 | 407 | goto fail_free_mbox; |
98c9ea5c | 408 | } |
92d7f7b0 JS |
409 | |
410 | mbox->mbox_cmpl = lpfc_mbx_cmpl_fabric_reg_login; | |
411 | mbox->vport = vport; | |
e47c9093 JS |
412 | /* increment the reference count on ndlp to hold reference |
413 | * for the callback routine. | |
414 | */ | |
92d7f7b0 JS |
415 | mbox->context2 = lpfc_nlp_get(ndlp); |
416 | ||
0b727fea | 417 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
98c9ea5c JS |
418 | if (rc == MBX_NOT_FINISHED) { |
419 | err = 6; | |
92d7f7b0 | 420 | goto fail_issue_reg_login; |
98c9ea5c | 421 | } |
92d7f7b0 JS |
422 | |
423 | return 0; | |
424 | ||
425 | fail_issue_reg_login: | |
e47c9093 JS |
426 | /* decrement the reference count on ndlp just incremented |
427 | * for the failed mbox command. | |
428 | */ | |
92d7f7b0 JS |
429 | lpfc_nlp_put(ndlp); |
430 | mp = (struct lpfc_dmabuf *) mbox->context1; | |
431 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
432 | kfree(mp); | |
433 | fail_free_mbox: | |
434 | mempool_free(mbox, phba->mbox_mem_pool); | |
435 | ||
436 | fail: | |
437 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
e8b62011 | 438 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
98c9ea5c | 439 | "0249 Cannot issue Register Fabric login: Err %d\n", err); |
92d7f7b0 JS |
440 | return -ENXIO; |
441 | } | |
442 | ||
6fb120a7 JS |
443 | /** |
444 | * lpfc_issue_reg_vfi - Register VFI for this vport's fabric login | |
445 | * @vport: pointer to a host virtual N_Port data structure. | |
446 | * | |
447 | * This routine issues a REG_VFI mailbox for the vfi, vpi, fcfi triplet for | |
1b51197d | 448 | * the @vport. This mailbox command is necessary for SLI4 port only. |
6fb120a7 JS |
449 | * |
450 | * Return code | |
451 | * 0 - successfully issued REG_VFI for @vport | |
452 | * A failure code otherwise. | |
453 | **/ | |
1b51197d | 454 | int |
6fb120a7 JS |
455 | lpfc_issue_reg_vfi(struct lpfc_vport *vport) |
456 | { | |
457 | struct lpfc_hba *phba = vport->phba; | |
458 | LPFC_MBOXQ_t *mboxq; | |
459 | struct lpfc_nodelist *ndlp; | |
460 | struct serv_parm *sp; | |
461 | struct lpfc_dmabuf *dmabuf; | |
462 | int rc = 0; | |
463 | ||
464 | sp = &phba->fc_fabparam; | |
939723a4 | 465 | /* move forward in case of SLI4 FC port loopback test and pt2pt mode */ |
1b51197d | 466 | if ((phba->sli_rev == LPFC_SLI_REV4) && |
939723a4 JS |
467 | !(phba->link_flag & LS_LOOPBACK_MODE) && |
468 | !(vport->fc_flag & FC_PT2PT)) { | |
1b51197d JS |
469 | ndlp = lpfc_findnode_did(vport, Fabric_DID); |
470 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { | |
471 | rc = -ENODEV; | |
472 | goto fail; | |
473 | } | |
6fb120a7 JS |
474 | } |
475 | ||
476 | dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
477 | if (!dmabuf) { | |
478 | rc = -ENOMEM; | |
479 | goto fail; | |
480 | } | |
481 | dmabuf->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &dmabuf->phys); | |
482 | if (!dmabuf->virt) { | |
483 | rc = -ENOMEM; | |
484 | goto fail_free_dmabuf; | |
485 | } | |
6d368e53 | 486 | |
6fb120a7 JS |
487 | mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
488 | if (!mboxq) { | |
489 | rc = -ENOMEM; | |
490 | goto fail_free_coherent; | |
491 | } | |
492 | vport->port_state = LPFC_FABRIC_CFG_LINK; | |
493 | memcpy(dmabuf->virt, &phba->fc_fabparam, sizeof(vport->fc_sparam)); | |
494 | lpfc_reg_vfi(mboxq, vport, dmabuf->phys); | |
ae05ebe3 | 495 | |
6fb120a7 JS |
496 | mboxq->mbox_cmpl = lpfc_mbx_cmpl_reg_vfi; |
497 | mboxq->vport = vport; | |
498 | mboxq->context1 = dmabuf; | |
499 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); | |
500 | if (rc == MBX_NOT_FINISHED) { | |
501 | rc = -ENXIO; | |
502 | goto fail_free_mbox; | |
503 | } | |
504 | return 0; | |
505 | ||
506 | fail_free_mbox: | |
507 | mempool_free(mboxq, phba->mbox_mem_pool); | |
508 | fail_free_coherent: | |
509 | lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys); | |
510 | fail_free_dmabuf: | |
511 | kfree(dmabuf); | |
512 | fail: | |
513 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
514 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
515 | "0289 Issue Register VFI failed: Err %d\n", rc); | |
516 | return rc; | |
517 | } | |
518 | ||
1b51197d JS |
519 | /** |
520 | * lpfc_issue_unreg_vfi - Unregister VFI for this vport's fabric login | |
521 | * @vport: pointer to a host virtual N_Port data structure. | |
522 | * | |
523 | * This routine issues a UNREG_VFI mailbox with the vfi, vpi, fcfi triplet for | |
524 | * the @vport. This mailbox command is necessary for SLI4 port only. | |
525 | * | |
526 | * Return code | |
527 | * 0 - successfully issued REG_VFI for @vport | |
528 | * A failure code otherwise. | |
529 | **/ | |
530 | int | |
531 | lpfc_issue_unreg_vfi(struct lpfc_vport *vport) | |
532 | { | |
533 | struct lpfc_hba *phba = vport->phba; | |
534 | struct Scsi_Host *shost; | |
535 | LPFC_MBOXQ_t *mboxq; | |
536 | int rc; | |
537 | ||
538 | mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
539 | if (!mboxq) { | |
540 | lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, | |
541 | "2556 UNREG_VFI mbox allocation failed" | |
542 | "HBA state x%x\n", phba->pport->port_state); | |
543 | return -ENOMEM; | |
544 | } | |
545 | ||
546 | lpfc_unreg_vfi(mboxq, vport); | |
547 | mboxq->vport = vport; | |
548 | mboxq->mbox_cmpl = lpfc_unregister_vfi_cmpl; | |
549 | ||
550 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); | |
551 | if (rc == MBX_NOT_FINISHED) { | |
552 | lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, | |
553 | "2557 UNREG_VFI issue mbox failed rc x%x " | |
554 | "HBA state x%x\n", | |
555 | rc, phba->pport->port_state); | |
556 | mempool_free(mboxq, phba->mbox_mem_pool); | |
557 | return -EIO; | |
558 | } | |
559 | ||
560 | shost = lpfc_shost_from_vport(vport); | |
561 | spin_lock_irq(shost->host_lock); | |
562 | vport->fc_flag &= ~FC_VFI_REGISTERED; | |
563 | spin_unlock_irq(shost->host_lock); | |
564 | return 0; | |
565 | } | |
566 | ||
92494144 JS |
567 | /** |
568 | * lpfc_check_clean_addr_bit - Check whether assigned FCID is clean. | |
569 | * @vport: pointer to a host virtual N_Port data structure. | |
570 | * @sp: pointer to service parameter data structure. | |
571 | * | |
572 | * This routine is called from FLOGI/FDISC completion handler functions. | |
573 | * lpfc_check_clean_addr_bit return 1 when FCID/Fabric portname/ Fabric | |
574 | * node nodename is changed in the completion service parameter else return | |
575 | * 0. This function also set flag in the vport data structure to delay | |
576 | * NP_Port discovery after the FLOGI/FDISC completion if Clean address bit | |
577 | * in FLOGI/FDISC response is cleared and FCID/Fabric portname/ Fabric | |
578 | * node nodename is changed in the completion service parameter. | |
579 | * | |
580 | * Return code | |
581 | * 0 - FCID and Fabric Nodename and Fabric portname is not changed. | |
582 | * 1 - FCID or Fabric Nodename or Fabric portname is changed. | |
583 | * | |
584 | **/ | |
585 | static uint8_t | |
586 | lpfc_check_clean_addr_bit(struct lpfc_vport *vport, | |
587 | struct serv_parm *sp) | |
588 | { | |
589 | uint8_t fabric_param_changed = 0; | |
590 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
591 | ||
592 | if ((vport->fc_prevDID != vport->fc_myDID) || | |
593 | memcmp(&vport->fabric_portname, &sp->portName, | |
594 | sizeof(struct lpfc_name)) || | |
595 | memcmp(&vport->fabric_nodename, &sp->nodeName, | |
596 | sizeof(struct lpfc_name))) | |
597 | fabric_param_changed = 1; | |
598 | ||
599 | /* | |
600 | * Word 1 Bit 31 in common service parameter is overloaded. | |
601 | * Word 1 Bit 31 in FLOGI request is multiple NPort request | |
602 | * Word 1 Bit 31 in FLOGI response is clean address bit | |
603 | * | |
604 | * If fabric parameter is changed and clean address bit is | |
605 | * cleared delay nport discovery if | |
606 | * - vport->fc_prevDID != 0 (not initial discovery) OR | |
607 | * - lpfc_delay_discovery module parameter is set. | |
608 | */ | |
609 | if (fabric_param_changed && !sp->cmn.clean_address_bit && | |
610 | (vport->fc_prevDID || lpfc_delay_discovery)) { | |
611 | spin_lock_irq(shost->host_lock); | |
612 | vport->fc_flag |= FC_DISC_DELAYED; | |
613 | spin_unlock_irq(shost->host_lock); | |
614 | } | |
615 | ||
616 | return fabric_param_changed; | |
617 | } | |
618 | ||
619 | ||
e59058c4 | 620 | /** |
3621a710 | 621 | * lpfc_cmpl_els_flogi_fabric - Completion function for flogi to a fabric port |
e59058c4 JS |
622 | * @vport: pointer to a host virtual N_Port data structure. |
623 | * @ndlp: pointer to a node-list data structure. | |
624 | * @sp: pointer to service parameter data structure. | |
625 | * @irsp: pointer to the IOCB within the lpfc response IOCB. | |
626 | * | |
627 | * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback | |
628 | * function to handle the completion of a Fabric Login (FLOGI) into a fabric | |
629 | * port in a fabric topology. It properly sets up the parameters to the @ndlp | |
630 | * from the IOCB response. It also check the newly assigned N_Port ID to the | |
631 | * @vport against the previously assigned N_Port ID. If it is different from | |
632 | * the previously assigned Destination ID (DID), the lpfc_unreg_rpi() routine | |
633 | * is invoked on all the remaining nodes with the @vport to unregister the | |
634 | * Remote Port Indicators (RPIs). Finally, the lpfc_issue_fabric_reglogin() | |
635 | * is invoked to register login to the fabric. | |
636 | * | |
637 | * Return code | |
638 | * 0 - Success (currently, always return 0) | |
639 | **/ | |
92d7f7b0 JS |
640 | static int |
641 | lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, | |
642 | struct serv_parm *sp, IOCB_t *irsp) | |
643 | { | |
644 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
645 | struct lpfc_hba *phba = vport->phba; | |
646 | struct lpfc_nodelist *np; | |
647 | struct lpfc_nodelist *next_np; | |
92494144 | 648 | uint8_t fabric_param_changed; |
92d7f7b0 | 649 | |
2e0fef85 JS |
650 | spin_lock_irq(shost->host_lock); |
651 | vport->fc_flag |= FC_FABRIC; | |
652 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 653 | |
654 | phba->fc_edtov = be32_to_cpu(sp->cmn.e_d_tov); | |
655 | if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */ | |
656 | phba->fc_edtov = (phba->fc_edtov + 999999) / 1000000; | |
657 | ||
12265f68 | 658 | phba->fc_edtovResol = sp->cmn.edtovResolution; |
dea3101e | 659 | phba->fc_ratov = (be32_to_cpu(sp->cmn.w2.r_a_tov) + 999) / 1000; |
660 | ||
76a95d75 | 661 | if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { |
2e0fef85 JS |
662 | spin_lock_irq(shost->host_lock); |
663 | vport->fc_flag |= FC_PUBLIC_LOOP; | |
664 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 665 | } |
666 | ||
2e0fef85 | 667 | vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID; |
dea3101e | 668 | memcpy(&ndlp->nlp_portname, &sp->portName, sizeof(struct lpfc_name)); |
92d7f7b0 | 669 | memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof(struct lpfc_name)); |
dea3101e | 670 | ndlp->nlp_class_sup = 0; |
671 | if (sp->cls1.classValid) | |
672 | ndlp->nlp_class_sup |= FC_COS_CLASS1; | |
673 | if (sp->cls2.classValid) | |
674 | ndlp->nlp_class_sup |= FC_COS_CLASS2; | |
675 | if (sp->cls3.classValid) | |
676 | ndlp->nlp_class_sup |= FC_COS_CLASS3; | |
677 | if (sp->cls4.classValid) | |
678 | ndlp->nlp_class_sup |= FC_COS_CLASS4; | |
679 | ndlp->nlp_maxframe = ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | | |
680 | sp->cmn.bbRcvSizeLsb; | |
92494144 JS |
681 | |
682 | fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp); | |
683 | memcpy(&vport->fabric_portname, &sp->portName, | |
684 | sizeof(struct lpfc_name)); | |
685 | memcpy(&vport->fabric_nodename, &sp->nodeName, | |
686 | sizeof(struct lpfc_name)); | |
dea3101e | 687 | memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); |
688 | ||
92d7f7b0 JS |
689 | if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { |
690 | if (sp->cmn.response_multiple_NPort) { | |
e8b62011 JS |
691 | lpfc_printf_vlog(vport, KERN_WARNING, |
692 | LOG_ELS | LOG_VPORT, | |
693 | "1816 FLOGI NPIV supported, " | |
694 | "response data 0x%x\n", | |
695 | sp->cmn.response_multiple_NPort); | |
1b51197d | 696 | spin_lock_irq(&phba->hbalock); |
92d7f7b0 | 697 | phba->link_flag |= LS_NPIV_FAB_SUPPORTED; |
1b51197d | 698 | spin_unlock_irq(&phba->hbalock); |
92d7f7b0 JS |
699 | } else { |
700 | /* Because we asked f/w for NPIV it still expects us | |
e8b62011 JS |
701 | to call reg_vnpid atleast for the physcial host */ |
702 | lpfc_printf_vlog(vport, KERN_WARNING, | |
703 | LOG_ELS | LOG_VPORT, | |
704 | "1817 Fabric does not support NPIV " | |
705 | "- configuring single port mode.\n"); | |
1b51197d | 706 | spin_lock_irq(&phba->hbalock); |
92d7f7b0 | 707 | phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED; |
1b51197d | 708 | spin_unlock_irq(&phba->hbalock); |
92d7f7b0 JS |
709 | } |
710 | } | |
dea3101e | 711 | |
ae05ebe3 JS |
712 | /* |
713 | * For FC we need to do some special processing because of the SLI | |
714 | * Port's default settings of the Common Service Parameters. | |
715 | */ | |
716 | if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC) { | |
717 | /* If physical FC port changed, unreg VFI and ALL VPIs / RPIs */ | |
718 | if ((phba->sli_rev == LPFC_SLI_REV4) && fabric_param_changed) | |
719 | lpfc_unregister_fcf_prep(phba); | |
720 | ||
721 | /* This should just update the VFI CSPs*/ | |
722 | if (vport->fc_flag & FC_VFI_REGISTERED) | |
723 | lpfc_issue_reg_vfi(vport); | |
724 | } | |
725 | ||
92494144 | 726 | if (fabric_param_changed && |
92d7f7b0 | 727 | !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { |
dea3101e | 728 | |
92d7f7b0 JS |
729 | /* If our NportID changed, we need to ensure all |
730 | * remaining NPORTs get unreg_login'ed. | |
731 | */ | |
732 | list_for_each_entry_safe(np, next_np, | |
733 | &vport->fc_nodes, nlp_listp) { | |
d7c255b2 | 734 | if (!NLP_CHK_NODE_ACT(np)) |
e47c9093 | 735 | continue; |
92d7f7b0 JS |
736 | if ((np->nlp_state != NLP_STE_NPR_NODE) || |
737 | !(np->nlp_flag & NLP_NPR_ADISC)) | |
738 | continue; | |
739 | spin_lock_irq(shost->host_lock); | |
740 | np->nlp_flag &= ~NLP_NPR_ADISC; | |
741 | spin_unlock_irq(shost->host_lock); | |
742 | lpfc_unreg_rpi(vport, np); | |
743 | } | |
78730cfe | 744 | lpfc_cleanup_pending_mbox(vport); |
5af5eee7 | 745 | |
5248a749 | 746 | if (phba->sli_rev == LPFC_SLI_REV4) { |
5af5eee7 | 747 | lpfc_sli4_unreg_all_rpis(vport); |
92d7f7b0 | 748 | lpfc_mbx_unreg_vpi(vport); |
09372820 | 749 | spin_lock_irq(shost->host_lock); |
ecfd03c6 JS |
750 | vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; |
751 | spin_unlock_irq(shost->host_lock); | |
752 | } | |
27aa1b73 JS |
753 | |
754 | /* | |
755 | * For SLI3 and SLI4, the VPI needs to be reregistered in | |
756 | * response to this fabric parameter change event. | |
757 | */ | |
758 | spin_lock_irq(shost->host_lock); | |
759 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; | |
760 | spin_unlock_irq(shost->host_lock); | |
38b92ef8 JS |
761 | } else if ((phba->sli_rev == LPFC_SLI_REV4) && |
762 | !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { | |
763 | /* | |
764 | * Driver needs to re-reg VPI in order for f/w | |
765 | * to update the MAC address. | |
766 | */ | |
9589b062 | 767 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); |
38b92ef8 JS |
768 | lpfc_register_new_vport(phba, vport, ndlp); |
769 | return 0; | |
92d7f7b0 | 770 | } |
dea3101e | 771 | |
6fb120a7 JS |
772 | if (phba->sli_rev < LPFC_SLI_REV4) { |
773 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_REG_LOGIN_ISSUE); | |
774 | if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED && | |
775 | vport->fc_flag & FC_VPORT_NEEDS_REG_VPI) | |
776 | lpfc_register_new_vport(phba, vport, ndlp); | |
777 | else | |
778 | lpfc_issue_fabric_reglogin(vport); | |
779 | } else { | |
780 | ndlp->nlp_type |= NLP_FABRIC; | |
781 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); | |
695a814e JS |
782 | if ((!(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) && |
783 | (vport->vpi_state & LPFC_VPI_REGISTERED)) { | |
6fb120a7 JS |
784 | lpfc_start_fdiscs(phba); |
785 | lpfc_do_scr_ns_plogi(phba, vport); | |
695a814e | 786 | } else if (vport->fc_flag & FC_VFI_REGISTERED) |
ecfd03c6 | 787 | lpfc_issue_init_vpi(vport); |
1b51197d JS |
788 | else { |
789 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
790 | "3135 Need register VFI: (x%x/%x)\n", | |
791 | vport->fc_prevDID, vport->fc_myDID); | |
6fb120a7 | 792 | lpfc_issue_reg_vfi(vport); |
1b51197d | 793 | } |
92d7f7b0 | 794 | } |
dea3101e | 795 | return 0; |
dea3101e | 796 | } |
1b51197d | 797 | |
e59058c4 | 798 | /** |
3621a710 | 799 | * lpfc_cmpl_els_flogi_nport - Completion function for flogi to an N_Port |
e59058c4 JS |
800 | * @vport: pointer to a host virtual N_Port data structure. |
801 | * @ndlp: pointer to a node-list data structure. | |
802 | * @sp: pointer to service parameter data structure. | |
803 | * | |
804 | * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback | |
805 | * function to handle the completion of a Fabric Login (FLOGI) into an N_Port | |
806 | * in a point-to-point topology. First, the @vport's N_Port Name is compared | |
807 | * with the received N_Port Name: if the @vport's N_Port Name is greater than | |
808 | * the received N_Port Name lexicographically, this node shall assign local | |
809 | * N_Port ID (PT2PT_LocalID: 1) and remote N_Port ID (PT2PT_RemoteID: 2) and | |
810 | * will send out Port Login (PLOGI) with the N_Port IDs assigned. Otherwise, | |
811 | * this node shall just wait for the remote node to issue PLOGI and assign | |
812 | * N_Port IDs. | |
813 | * | |
814 | * Return code | |
815 | * 0 - Success | |
816 | * -ENXIO - Fail | |
817 | **/ | |
dea3101e | 818 | static int |
2e0fef85 JS |
819 | lpfc_cmpl_els_flogi_nport(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
820 | struct serv_parm *sp) | |
dea3101e | 821 | { |
2e0fef85 JS |
822 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
823 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 824 | LPFC_MBOXQ_t *mbox; |
825 | int rc; | |
826 | ||
2e0fef85 JS |
827 | spin_lock_irq(shost->host_lock); |
828 | vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
829 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 830 | |
831 | phba->fc_edtov = FF_DEF_EDTOV; | |
832 | phba->fc_ratov = FF_DEF_RATOV; | |
2e0fef85 | 833 | rc = memcmp(&vport->fc_portname, &sp->portName, |
92d7f7b0 | 834 | sizeof(vport->fc_portname)); |
2eb6862a JS |
835 | memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); |
836 | ||
dea3101e | 837 | if (rc >= 0) { |
838 | /* This side will initiate the PLOGI */ | |
2e0fef85 JS |
839 | spin_lock_irq(shost->host_lock); |
840 | vport->fc_flag |= FC_PT2PT_PLOGI; | |
841 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 842 | |
843 | /* | |
844 | * N_Port ID cannot be 0, set our to LocalID the other | |
845 | * side will be RemoteID. | |
846 | */ | |
847 | ||
848 | /* not equal */ | |
849 | if (rc) | |
2e0fef85 | 850 | vport->fc_myDID = PT2PT_LocalID; |
dea3101e | 851 | |
852 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
853 | if (!mbox) | |
854 | goto fail; | |
855 | ||
856 | lpfc_config_link(phba, mbox); | |
857 | ||
858 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
ed957684 | 859 | mbox->vport = vport; |
0b727fea | 860 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
dea3101e | 861 | if (rc == MBX_NOT_FINISHED) { |
862 | mempool_free(mbox, phba->mbox_mem_pool); | |
863 | goto fail; | |
864 | } | |
939723a4 JS |
865 | |
866 | /* | |
867 | * For SLI4, the VFI/VPI are registered AFTER the | |
868 | * Nport with the higher WWPN sends the PLOGI with | |
869 | * an assigned NPortId. | |
870 | */ | |
871 | ||
872 | /* not equal */ | |
873 | if ((phba->sli_rev == LPFC_SLI_REV4) && rc) | |
874 | lpfc_issue_reg_vfi(vport); | |
875 | ||
e47c9093 JS |
876 | /* Decrement ndlp reference count indicating that ndlp can be |
877 | * safely released when other references to it are done. | |
878 | */ | |
329f9bc7 | 879 | lpfc_nlp_put(ndlp); |
dea3101e | 880 | |
2e0fef85 | 881 | ndlp = lpfc_findnode_did(vport, PT2PT_RemoteID); |
dea3101e | 882 | if (!ndlp) { |
883 | /* | |
884 | * Cannot find existing Fabric ndlp, so allocate a | |
885 | * new one | |
886 | */ | |
887 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
888 | if (!ndlp) | |
889 | goto fail; | |
2e0fef85 | 890 | lpfc_nlp_init(vport, ndlp, PT2PT_RemoteID); |
e47c9093 JS |
891 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { |
892 | ndlp = lpfc_enable_node(vport, ndlp, | |
893 | NLP_STE_UNUSED_NODE); | |
894 | if(!ndlp) | |
895 | goto fail; | |
dea3101e | 896 | } |
897 | ||
898 | memcpy(&ndlp->nlp_portname, &sp->portName, | |
2e0fef85 | 899 | sizeof(struct lpfc_name)); |
dea3101e | 900 | memcpy(&ndlp->nlp_nodename, &sp->nodeName, |
2e0fef85 | 901 | sizeof(struct lpfc_name)); |
e47c9093 | 902 | /* Set state will put ndlp onto node list if not already done */ |
2e0fef85 JS |
903 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
904 | spin_lock_irq(shost->host_lock); | |
dea3101e | 905 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 | 906 | spin_unlock_irq(shost->host_lock); |
e47c9093 JS |
907 | } else |
908 | /* This side will wait for the PLOGI, decrement ndlp reference | |
909 | * count indicating that ndlp can be released when other | |
910 | * references to it are done. | |
911 | */ | |
329f9bc7 | 912 | lpfc_nlp_put(ndlp); |
dea3101e | 913 | |
09372820 JS |
914 | /* If we are pt2pt with another NPort, force NPIV off! */ |
915 | phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED; | |
916 | ||
2e0fef85 JS |
917 | spin_lock_irq(shost->host_lock); |
918 | vport->fc_flag |= FC_PT2PT; | |
919 | spin_unlock_irq(shost->host_lock); | |
e74c03c8 JS |
920 | /* If physical FC port changed, unreg VFI and ALL VPIs / RPIs */ |
921 | if ((phba->sli_rev == LPFC_SLI_REV4) && phba->fc_topology_changed) { | |
922 | lpfc_unregister_fcf_prep(phba); | |
923 | ||
924 | /* The FC_VFI_REGISTERED flag will get clear in the cmpl | |
925 | * handler for unreg_vfi, but if we don't force the | |
926 | * FC_VFI_REGISTERED flag then the reg_vfi mailbox could be | |
927 | * built with the update bit set instead of just the vp bit to | |
928 | * change the Nport ID. We need to have the vp set and the | |
929 | * Upd cleared on topology changes. | |
930 | */ | |
931 | spin_lock_irq(shost->host_lock); | |
932 | vport->fc_flag &= ~FC_VFI_REGISTERED; | |
933 | spin_unlock_irq(shost->host_lock); | |
934 | phba->fc_topology_changed = 0; | |
935 | lpfc_issue_reg_vfi(vport); | |
936 | } | |
dea3101e | 937 | |
938 | /* Start discovery - this should just do CLEAR_LA */ | |
2e0fef85 | 939 | lpfc_disc_start(vport); |
dea3101e | 940 | return 0; |
92d7f7b0 | 941 | fail: |
dea3101e | 942 | return -ENXIO; |
943 | } | |
944 | ||
e59058c4 | 945 | /** |
3621a710 | 946 | * lpfc_cmpl_els_flogi - Completion callback function for flogi |
e59058c4 JS |
947 | * @phba: pointer to lpfc hba data structure. |
948 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
949 | * @rspiocb: pointer to lpfc response iocb data structure. | |
950 | * | |
951 | * This routine is the top-level completion callback function for issuing | |
952 | * a Fabric Login (FLOGI) command. If the response IOCB reported error, | |
953 | * the lpfc_els_retry() routine shall be invoked to retry the FLOGI. If | |
954 | * retry has been made (either immediately or delayed with lpfc_els_retry() | |
955 | * returning 1), the command IOCB will be released and function returned. | |
956 | * If the retry attempt has been given up (possibly reach the maximum | |
957 | * number of retries), one additional decrement of ndlp reference shall be | |
958 | * invoked before going out after releasing the command IOCB. This will | |
959 | * actually release the remote node (Note, lpfc_els_free_iocb() will also | |
960 | * invoke one decrement of ndlp reference count). If no error reported in | |
961 | * the IOCB status, the command Port ID field is used to determine whether | |
962 | * this is a point-to-point topology or a fabric topology: if the Port ID | |
963 | * field is assigned, it is a fabric topology; otherwise, it is a | |
964 | * point-to-point topology. The routine lpfc_cmpl_els_flogi_fabric() or | |
965 | * lpfc_cmpl_els_flogi_nport() shall be invoked accordingly to handle the | |
966 | * specific topology completion conditions. | |
967 | **/ | |
dea3101e | 968 | static void |
329f9bc7 JS |
969 | lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
970 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 971 | { |
2e0fef85 JS |
972 | struct lpfc_vport *vport = cmdiocb->vport; |
973 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e | 974 | IOCB_t *irsp = &rspiocb->iocb; |
975 | struct lpfc_nodelist *ndlp = cmdiocb->context1; | |
976 | struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp; | |
977 | struct serv_parm *sp; | |
0c9ab6f5 | 978 | uint16_t fcf_index; |
dea3101e | 979 | int rc; |
980 | ||
981 | /* Check to see if link went down during discovery */ | |
2e0fef85 | 982 | if (lpfc_els_chk_latt(vport)) { |
fa4066b6 JS |
983 | /* One additional decrement on node reference count to |
984 | * trigger the release of the node | |
985 | */ | |
329f9bc7 | 986 | lpfc_nlp_put(ndlp); |
dea3101e | 987 | goto out; |
988 | } | |
989 | ||
858c9f6c JS |
990 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
991 | "FLOGI cmpl: status:x%x/x%x state:x%x", | |
992 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
993 | vport->port_state); | |
994 | ||
dea3101e | 995 | if (irsp->ulpStatus) { |
0c9ab6f5 | 996 | /* |
a93ff37a | 997 | * In case of FIP mode, perform roundrobin FCF failover |
0c9ab6f5 JS |
998 | * due to new FCF discovery |
999 | */ | |
1000 | if ((phba->hba_flag & HBA_FIP_SUPPORT) && | |
80c17849 JS |
1001 | (phba->fcf.fcf_flag & FCF_DISCOVERY)) { |
1002 | if (phba->link_state < LPFC_LINK_UP) | |
1003 | goto stop_rr_fcf_flogi; | |
1004 | if ((phba->fcoe_cvl_eventtag_attn == | |
1005 | phba->fcoe_cvl_eventtag) && | |
1006 | (irsp->ulpStatus == IOSTAT_LOCAL_REJECT) && | |
e3d2b802 JS |
1007 | ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) == |
1008 | IOERR_SLI_ABORTED)) | |
80c17849 JS |
1009 | goto stop_rr_fcf_flogi; |
1010 | else | |
1011 | phba->fcoe_cvl_eventtag_attn = | |
1012 | phba->fcoe_cvl_eventtag; | |
0c9ab6f5 | 1013 | lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS, |
a93ff37a JS |
1014 | "2611 FLOGI failed on FCF (x%x), " |
1015 | "status:x%x/x%x, tmo:x%x, perform " | |
1016 | "roundrobin FCF failover\n", | |
38b92ef8 JS |
1017 | phba->fcf.current_rec.fcf_indx, |
1018 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1019 | irsp->ulpTimeout); | |
7d791df7 JS |
1020 | lpfc_sli4_set_fcf_flogi_fail(phba, |
1021 | phba->fcf.current_rec.fcf_indx); | |
0c9ab6f5 | 1022 | fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba); |
a93ff37a JS |
1023 | rc = lpfc_sli4_fcf_rr_next_proc(vport, fcf_index); |
1024 | if (rc) | |
1025 | goto out; | |
0c9ab6f5 JS |
1026 | } |
1027 | ||
80c17849 | 1028 | stop_rr_fcf_flogi: |
38b92ef8 JS |
1029 | /* FLOGI failure */ |
1030 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
1031 | "2858 FLOGI failure Status:x%x/x%x TMO:x%x\n", | |
1032 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1033 | irsp->ulpTimeout); | |
1034 | ||
dea3101e | 1035 | /* Check for retry */ |
2e0fef85 | 1036 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) |
dea3101e | 1037 | goto out; |
2e0fef85 | 1038 | |
76a95d75 JS |
1039 | /* FLOGI failure */ |
1040 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
1041 | "0100 FLOGI failure Status:x%x/x%x TMO:x%x\n", | |
1042 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1043 | irsp->ulpTimeout); | |
1044 | ||
dea3101e | 1045 | /* FLOGI failed, so there is no fabric */ |
2e0fef85 JS |
1046 | spin_lock_irq(shost->host_lock); |
1047 | vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
1048 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 1049 | |
329f9bc7 | 1050 | /* If private loop, then allow max outstanding els to be |
dea3101e | 1051 | * LPFC_MAX_DISC_THREADS (32). Scanning in the case of no |
1052 | * alpa map would take too long otherwise. | |
1053 | */ | |
1b51197d | 1054 | if (phba->alpa_map[0] == 0) |
3de2a653 | 1055 | vport->cfg_discovery_threads = LPFC_MAX_DISC_THREADS; |
ff78d8f9 JS |
1056 | if ((phba->sli_rev == LPFC_SLI_REV4) && |
1057 | (!(vport->fc_flag & FC_VFI_REGISTERED) || | |
e74c03c8 JS |
1058 | (vport->fc_prevDID != vport->fc_myDID) || |
1059 | phba->fc_topology_changed)) { | |
1060 | if (vport->fc_flag & FC_VFI_REGISTERED) { | |
1061 | if (phba->fc_topology_changed) { | |
1062 | lpfc_unregister_fcf_prep(phba); | |
1063 | spin_lock_irq(shost->host_lock); | |
1064 | vport->fc_flag &= ~FC_VFI_REGISTERED; | |
1065 | spin_unlock_irq(shost->host_lock); | |
1066 | phba->fc_topology_changed = 0; | |
1067 | } else { | |
1068 | lpfc_sli4_unreg_all_rpis(vport); | |
1069 | } | |
1070 | } | |
ff78d8f9 JS |
1071 | lpfc_issue_reg_vfi(vport); |
1072 | lpfc_nlp_put(ndlp); | |
1073 | goto out; | |
dea3101e | 1074 | } |
dea3101e | 1075 | goto flogifail; |
1076 | } | |
695a814e JS |
1077 | spin_lock_irq(shost->host_lock); |
1078 | vport->fc_flag &= ~FC_VPORT_CVL_RCVD; | |
4b40c59e | 1079 | vport->fc_flag &= ~FC_VPORT_LOGO_RCVD; |
695a814e | 1080 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1081 | |
1082 | /* | |
1083 | * The FLogI succeeded. Sync the data for the CPU before | |
1084 | * accessing it. | |
1085 | */ | |
1086 | prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); | |
a2fc4aef JS |
1087 | if (!prsp) |
1088 | goto out; | |
dea3101e | 1089 | sp = prsp->virt + sizeof(uint32_t); |
1090 | ||
1091 | /* FLOGI completes successfully */ | |
e8b62011 | 1092 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
88f43a08 JS |
1093 | "0101 FLOGI completes successfully, I/O tag:x%x, " |
1094 | "Data: x%x x%x x%x x%x x%x x%x\n", cmdiocb->iotag, | |
e8b62011 | 1095 | irsp->un.ulpWord[4], sp->cmn.e_d_tov, |
e74c03c8 JS |
1096 | sp->cmn.w2.r_a_tov, sp->cmn.edtovResolution, |
1097 | vport->port_state, vport->fc_flag); | |
dea3101e | 1098 | |
2e0fef85 | 1099 | if (vport->port_state == LPFC_FLOGI) { |
dea3101e | 1100 | /* |
1101 | * If Common Service Parameters indicate Nport | |
1102 | * we are point to point, if Fport we are Fabric. | |
1103 | */ | |
1104 | if (sp->cmn.fPort) | |
2e0fef85 | 1105 | rc = lpfc_cmpl_els_flogi_fabric(vport, ndlp, sp, irsp); |
76a95d75 | 1106 | else if (!(phba->hba_flag & HBA_FCOE_MODE)) |
2e0fef85 | 1107 | rc = lpfc_cmpl_els_flogi_nport(vport, ndlp, sp); |
dbb6b3ab JS |
1108 | else { |
1109 | lpfc_printf_vlog(vport, KERN_ERR, | |
1110 | LOG_FIP | LOG_ELS, | |
1111 | "2831 FLOGI response with cleared Fabric " | |
1112 | "bit fcf_index 0x%x " | |
1113 | "Switch Name %02x%02x%02x%02x%02x%02x%02x%02x " | |
1114 | "Fabric Name " | |
1115 | "%02x%02x%02x%02x%02x%02x%02x%02x\n", | |
1116 | phba->fcf.current_rec.fcf_indx, | |
1117 | phba->fcf.current_rec.switch_name[0], | |
1118 | phba->fcf.current_rec.switch_name[1], | |
1119 | phba->fcf.current_rec.switch_name[2], | |
1120 | phba->fcf.current_rec.switch_name[3], | |
1121 | phba->fcf.current_rec.switch_name[4], | |
1122 | phba->fcf.current_rec.switch_name[5], | |
1123 | phba->fcf.current_rec.switch_name[6], | |
1124 | phba->fcf.current_rec.switch_name[7], | |
1125 | phba->fcf.current_rec.fabric_name[0], | |
1126 | phba->fcf.current_rec.fabric_name[1], | |
1127 | phba->fcf.current_rec.fabric_name[2], | |
1128 | phba->fcf.current_rec.fabric_name[3], | |
1129 | phba->fcf.current_rec.fabric_name[4], | |
1130 | phba->fcf.current_rec.fabric_name[5], | |
1131 | phba->fcf.current_rec.fabric_name[6], | |
1132 | phba->fcf.current_rec.fabric_name[7]); | |
1133 | lpfc_nlp_put(ndlp); | |
1134 | spin_lock_irq(&phba->hbalock); | |
1135 | phba->fcf.fcf_flag &= ~FCF_DISCOVERY; | |
a93ff37a | 1136 | phba->hba_flag &= ~(FCF_RR_INPROG | HBA_DEVLOSS_TMO); |
dbb6b3ab JS |
1137 | spin_unlock_irq(&phba->hbalock); |
1138 | goto out; | |
1139 | } | |
0c9ab6f5 JS |
1140 | if (!rc) { |
1141 | /* Mark the FCF discovery process done */ | |
999d813f JS |
1142 | if (phba->hba_flag & HBA_FIP_SUPPORT) |
1143 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FIP | | |
1144 | LOG_ELS, | |
a93ff37a JS |
1145 | "2769 FLOGI to FCF (x%x) " |
1146 | "completed successfully\n", | |
999d813f | 1147 | phba->fcf.current_rec.fcf_indx); |
0c9ab6f5 JS |
1148 | spin_lock_irq(&phba->hbalock); |
1149 | phba->fcf.fcf_flag &= ~FCF_DISCOVERY; | |
a93ff37a | 1150 | phba->hba_flag &= ~(FCF_RR_INPROG | HBA_DEVLOSS_TMO); |
0c9ab6f5 | 1151 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 1152 | goto out; |
0c9ab6f5 | 1153 | } |
dea3101e | 1154 | } |
1155 | ||
1156 | flogifail: | |
329f9bc7 | 1157 | lpfc_nlp_put(ndlp); |
dea3101e | 1158 | |
858c9f6c | 1159 | if (!lpfc_error_lost_link(irsp)) { |
dea3101e | 1160 | /* FLOGI failed, so just use loop map to make discovery list */ |
2e0fef85 | 1161 | lpfc_disc_list_loopmap(vport); |
dea3101e | 1162 | |
1163 | /* Start discovery */ | |
2e0fef85 | 1164 | lpfc_disc_start(vport); |
87af33fe | 1165 | } else if (((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) || |
e3d2b802 JS |
1166 | (((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) != |
1167 | IOERR_SLI_ABORTED) && | |
1168 | ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) != | |
1169 | IOERR_SLI_DOWN))) && | |
87af33fe JS |
1170 | (phba->link_state != LPFC_CLEAR_LA)) { |
1171 | /* If FLOGI failed enable link interrupt. */ | |
1172 | lpfc_issue_clear_la(phba, vport); | |
dea3101e | 1173 | } |
dea3101e | 1174 | out: |
1175 | lpfc_els_free_iocb(phba, cmdiocb); | |
1176 | } | |
1177 | ||
e59058c4 | 1178 | /** |
3621a710 | 1179 | * lpfc_issue_els_flogi - Issue an flogi iocb command for a vport |
e59058c4 JS |
1180 | * @vport: pointer to a host virtual N_Port data structure. |
1181 | * @ndlp: pointer to a node-list data structure. | |
1182 | * @retry: number of retries to the command IOCB. | |
1183 | * | |
1184 | * This routine issues a Fabric Login (FLOGI) Request ELS command | |
1185 | * for a @vport. The initiator service parameters are put into the payload | |
1186 | * of the FLOGI Request IOCB and the top-level callback function pointer | |
1187 | * to lpfc_cmpl_els_flogi() routine is put to the IOCB completion callback | |
1188 | * function field. The lpfc_issue_fabric_iocb routine is invoked to send | |
1189 | * out FLOGI ELS command with one outstanding fabric IOCB at a time. | |
1190 | * | |
1191 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
1192 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
1193 | * will be stored into the context1 field of the IOCB for the completion | |
1194 | * callback function to the FLOGI ELS command. | |
1195 | * | |
1196 | * Return code | |
1197 | * 0 - successfully issued flogi iocb for @vport | |
1198 | * 1 - failed to issue flogi iocb for @vport | |
1199 | **/ | |
dea3101e | 1200 | static int |
2e0fef85 | 1201 | lpfc_issue_els_flogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
dea3101e | 1202 | uint8_t retry) |
1203 | { | |
2e0fef85 | 1204 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 1205 | struct serv_parm *sp; |
1206 | IOCB_t *icmd; | |
1207 | struct lpfc_iocbq *elsiocb; | |
1208 | struct lpfc_sli_ring *pring; | |
1209 | uint8_t *pcmd; | |
1210 | uint16_t cmdsize; | |
1211 | uint32_t tmo; | |
1212 | int rc; | |
1213 | ||
1214 | pring = &phba->sli.ring[LPFC_ELS_RING]; | |
1215 | ||
92d7f7b0 | 1216 | cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); |
2e0fef85 JS |
1217 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
1218 | ndlp->nlp_DID, ELS_CMD_FLOGI); | |
92d7f7b0 | 1219 | |
488d1469 | 1220 | if (!elsiocb) |
c9f8735b | 1221 | return 1; |
dea3101e | 1222 | |
1223 | icmd = &elsiocb->iocb; | |
1224 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
1225 | ||
1226 | /* For FLOGI request, remainder of payload is service parameters */ | |
1227 | *((uint32_t *) (pcmd)) = ELS_CMD_FLOGI; | |
92d7f7b0 JS |
1228 | pcmd += sizeof(uint32_t); |
1229 | memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); | |
dea3101e | 1230 | sp = (struct serv_parm *) pcmd; |
1231 | ||
1232 | /* Setup CSPs accordingly for Fabric */ | |
1233 | sp->cmn.e_d_tov = 0; | |
1234 | sp->cmn.w2.r_a_tov = 0; | |
df9e1b59 | 1235 | sp->cmn.virtual_fabric_support = 0; |
dea3101e | 1236 | sp->cls1.classValid = 0; |
dea3101e | 1237 | if (sp->cmn.fcphLow < FC_PH3) |
1238 | sp->cmn.fcphLow = FC_PH3; | |
1239 | if (sp->cmn.fcphHigh < FC_PH3) | |
1240 | sp->cmn.fcphHigh = FC_PH3; | |
1241 | ||
c31098ce JS |
1242 | if (phba->sli_rev == LPFC_SLI_REV4) { |
1243 | if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == | |
1244 | LPFC_SLI_INTF_IF_TYPE_0) { | |
1245 | elsiocb->iocb.ulpCt_h = ((SLI4_CT_FCFI >> 1) & 1); | |
1246 | elsiocb->iocb.ulpCt_l = (SLI4_CT_FCFI & 1); | |
1247 | /* FLOGI needs to be 3 for WQE FCFI */ | |
1248 | /* Set the fcfi to the fcfi we registered with */ | |
1249 | elsiocb->iocb.ulpContext = phba->fcf.fcfi; | |
1250 | } | |
0f37887e JS |
1251 | /* Can't do SLI4 class2 without support sequence coalescing */ |
1252 | sp->cls2.classValid = 0; | |
1253 | sp->cls2.seqDelivery = 0; | |
5248a749 | 1254 | } else { |
0f37887e JS |
1255 | /* Historical, setting sequential-delivery bit for SLI3 */ |
1256 | sp->cls2.seqDelivery = (sp->cls2.classValid) ? 1 : 0; | |
1257 | sp->cls3.seqDelivery = (sp->cls3.classValid) ? 1 : 0; | |
5248a749 JS |
1258 | if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { |
1259 | sp->cmn.request_multiple_Nport = 1; | |
1260 | /* For FLOGI, Let FLOGI rsp set the NPortID for VPI 0 */ | |
1261 | icmd->ulpCt_h = 1; | |
1262 | icmd->ulpCt_l = 0; | |
1263 | } else | |
1264 | sp->cmn.request_multiple_Nport = 0; | |
92d7f7b0 JS |
1265 | } |
1266 | ||
76a95d75 | 1267 | if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) { |
858c9f6c JS |
1268 | icmd->un.elsreq64.myID = 0; |
1269 | icmd->un.elsreq64.fl = 1; | |
1270 | } | |
1271 | ||
dea3101e | 1272 | tmo = phba->fc_ratov; |
1273 | phba->fc_ratov = LPFC_DISC_FLOGI_TMO; | |
2e0fef85 | 1274 | lpfc_set_disctmo(vport); |
dea3101e | 1275 | phba->fc_ratov = tmo; |
1276 | ||
1277 | phba->fc_stat.elsXmitFLOGI++; | |
1278 | elsiocb->iocb_cmpl = lpfc_cmpl_els_flogi; | |
858c9f6c JS |
1279 | |
1280 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, | |
1281 | "Issue FLOGI: opt:x%x", | |
1282 | phba->sli3_options, 0, 0); | |
1283 | ||
92d7f7b0 | 1284 | rc = lpfc_issue_fabric_iocb(phba, elsiocb); |
dea3101e | 1285 | if (rc == IOCB_ERROR) { |
1286 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 1287 | return 1; |
dea3101e | 1288 | } |
c9f8735b | 1289 | return 0; |
dea3101e | 1290 | } |
1291 | ||
e59058c4 | 1292 | /** |
3621a710 | 1293 | * lpfc_els_abort_flogi - Abort all outstanding flogi iocbs |
e59058c4 JS |
1294 | * @phba: pointer to lpfc hba data structure. |
1295 | * | |
1296 | * This routine aborts all the outstanding Fabric Login (FLOGI) IOCBs | |
1297 | * with a @phba. This routine walks all the outstanding IOCBs on the txcmplq | |
1298 | * list and issues an abort IOCB commond on each outstanding IOCB that | |
1299 | * contains a active Fabric_DID ndlp. Note that this function is to issue | |
1300 | * the abort IOCB command on all the outstanding IOCBs, thus when this | |
1301 | * function returns, it does not guarantee all the IOCBs are actually aborted. | |
1302 | * | |
1303 | * Return code | |
3ad2f3fb | 1304 | * 0 - Successfully issued abort iocb on all outstanding flogis (Always 0) |
e59058c4 | 1305 | **/ |
dea3101e | 1306 | int |
2e0fef85 | 1307 | lpfc_els_abort_flogi(struct lpfc_hba *phba) |
dea3101e | 1308 | { |
1309 | struct lpfc_sli_ring *pring; | |
1310 | struct lpfc_iocbq *iocb, *next_iocb; | |
1311 | struct lpfc_nodelist *ndlp; | |
1312 | IOCB_t *icmd; | |
1313 | ||
1314 | /* Abort outstanding I/O on NPort <nlp_DID> */ | |
1315 | lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, | |
e8b62011 JS |
1316 | "0201 Abort outstanding I/O on NPort x%x\n", |
1317 | Fabric_DID); | |
dea3101e | 1318 | |
1319 | pring = &phba->sli.ring[LPFC_ELS_RING]; | |
1320 | ||
1321 | /* | |
1322 | * Check the txcmplq for an iocb that matches the nport the driver is | |
1323 | * searching for. | |
1324 | */ | |
2e0fef85 | 1325 | spin_lock_irq(&phba->hbalock); |
dea3101e | 1326 | list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { |
1327 | icmd = &iocb->iocb; | |
1b51197d | 1328 | if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR) { |
dea3101e | 1329 | ndlp = (struct lpfc_nodelist *)(iocb->context1); |
58da1ffb JS |
1330 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && |
1331 | (ndlp->nlp_DID == Fabric_DID)) | |
07951076 | 1332 | lpfc_sli_issue_abort_iotag(phba, pring, iocb); |
dea3101e | 1333 | } |
1334 | } | |
2e0fef85 | 1335 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 1336 | |
1337 | return 0; | |
1338 | } | |
1339 | ||
e59058c4 | 1340 | /** |
3621a710 | 1341 | * lpfc_initial_flogi - Issue an initial fabric login for a vport |
e59058c4 JS |
1342 | * @vport: pointer to a host virtual N_Port data structure. |
1343 | * | |
1344 | * This routine issues an initial Fabric Login (FLOGI) for the @vport | |
1345 | * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from | |
1346 | * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and | |
1347 | * put it into the @vport's ndlp list. If an inactive ndlp found on the list, | |
1348 | * it will just be enabled and made active. The lpfc_issue_els_flogi() routine | |
1349 | * is then invoked with the @vport and the ndlp to perform the FLOGI for the | |
1350 | * @vport. | |
1351 | * | |
1352 | * Return code | |
1353 | * 0 - failed to issue initial flogi for @vport | |
1354 | * 1 - successfully issued initial flogi for @vport | |
1355 | **/ | |
dea3101e | 1356 | int |
2e0fef85 | 1357 | lpfc_initial_flogi(struct lpfc_vport *vport) |
dea3101e | 1358 | { |
2e0fef85 | 1359 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 1360 | struct lpfc_nodelist *ndlp; |
1361 | ||
98c9ea5c JS |
1362 | vport->port_state = LPFC_FLOGI; |
1363 | lpfc_set_disctmo(vport); | |
1364 | ||
c9f8735b | 1365 | /* First look for the Fabric ndlp */ |
2e0fef85 | 1366 | ndlp = lpfc_findnode_did(vport, Fabric_DID); |
c9f8735b | 1367 | if (!ndlp) { |
dea3101e | 1368 | /* Cannot find existing Fabric ndlp, so allocate a new one */ |
c9f8735b JW |
1369 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); |
1370 | if (!ndlp) | |
1371 | return 0; | |
2e0fef85 | 1372 | lpfc_nlp_init(vport, ndlp, Fabric_DID); |
6fb120a7 JS |
1373 | /* Set the node type */ |
1374 | ndlp->nlp_type |= NLP_FABRIC; | |
e47c9093 JS |
1375 | /* Put ndlp onto node list */ |
1376 | lpfc_enqueue_node(vport, ndlp); | |
1377 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
1378 | /* re-setup ndlp without removing from node list */ | |
1379 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
1380 | if (!ndlp) | |
1381 | return 0; | |
dea3101e | 1382 | } |
87af33fe | 1383 | |
5ac6b303 | 1384 | if (lpfc_issue_els_flogi(vport, ndlp, 0)) { |
fa4066b6 JS |
1385 | /* This decrement of reference count to node shall kick off |
1386 | * the release of the node. | |
1387 | */ | |
329f9bc7 | 1388 | lpfc_nlp_put(ndlp); |
5ac6b303 JS |
1389 | return 0; |
1390 | } | |
c9f8735b | 1391 | return 1; |
dea3101e | 1392 | } |
1393 | ||
e59058c4 | 1394 | /** |
3621a710 | 1395 | * lpfc_initial_fdisc - Issue an initial fabric discovery for a vport |
e59058c4 JS |
1396 | * @vport: pointer to a host virtual N_Port data structure. |
1397 | * | |
1398 | * This routine issues an initial Fabric Discover (FDISC) for the @vport | |
1399 | * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from | |
1400 | * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and | |
1401 | * put it into the @vport's ndlp list. If an inactive ndlp found on the list, | |
1402 | * it will just be enabled and made active. The lpfc_issue_els_fdisc() routine | |
1403 | * is then invoked with the @vport and the ndlp to perform the FDISC for the | |
1404 | * @vport. | |
1405 | * | |
1406 | * Return code | |
1407 | * 0 - failed to issue initial fdisc for @vport | |
1408 | * 1 - successfully issued initial fdisc for @vport | |
1409 | **/ | |
92d7f7b0 JS |
1410 | int |
1411 | lpfc_initial_fdisc(struct lpfc_vport *vport) | |
1412 | { | |
1413 | struct lpfc_hba *phba = vport->phba; | |
1414 | struct lpfc_nodelist *ndlp; | |
1415 | ||
1416 | /* First look for the Fabric ndlp */ | |
1417 | ndlp = lpfc_findnode_did(vport, Fabric_DID); | |
1418 | if (!ndlp) { | |
1419 | /* Cannot find existing Fabric ndlp, so allocate a new one */ | |
1420 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
1421 | if (!ndlp) | |
1422 | return 0; | |
1423 | lpfc_nlp_init(vport, ndlp, Fabric_DID); | |
e47c9093 JS |
1424 | /* Put ndlp onto node list */ |
1425 | lpfc_enqueue_node(vport, ndlp); | |
1426 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
1427 | /* re-setup ndlp without removing from node list */ | |
1428 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
1429 | if (!ndlp) | |
1430 | return 0; | |
92d7f7b0 | 1431 | } |
e47c9093 | 1432 | |
92d7f7b0 | 1433 | if (lpfc_issue_els_fdisc(vport, ndlp, 0)) { |
fa4066b6 JS |
1434 | /* decrement node reference count to trigger the release of |
1435 | * the node. | |
1436 | */ | |
92d7f7b0 | 1437 | lpfc_nlp_put(ndlp); |
fa4066b6 | 1438 | return 0; |
92d7f7b0 JS |
1439 | } |
1440 | return 1; | |
1441 | } | |
87af33fe | 1442 | |
e59058c4 | 1443 | /** |
3621a710 | 1444 | * lpfc_more_plogi - Check and issue remaining plogis for a vport |
e59058c4 JS |
1445 | * @vport: pointer to a host virtual N_Port data structure. |
1446 | * | |
1447 | * This routine checks whether there are more remaining Port Logins | |
1448 | * (PLOGI) to be issued for the @vport. If so, it will invoke the routine | |
1449 | * lpfc_els_disc_plogi() to go through the Node Port Recovery (NPR) nodes | |
1450 | * to issue ELS PLOGIs up to the configured discover threads with the | |
1451 | * @vport (@vport->cfg_discovery_threads). The function also decrement | |
1452 | * the @vport's num_disc_node by 1 if it is not already 0. | |
1453 | **/ | |
87af33fe | 1454 | void |
2e0fef85 | 1455 | lpfc_more_plogi(struct lpfc_vport *vport) |
dea3101e | 1456 | { |
1457 | int sentplogi; | |
1458 | ||
2e0fef85 JS |
1459 | if (vport->num_disc_nodes) |
1460 | vport->num_disc_nodes--; | |
dea3101e | 1461 | |
1462 | /* Continue discovery with <num_disc_nodes> PLOGIs to go */ | |
e8b62011 JS |
1463 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
1464 | "0232 Continue discovery with %d PLOGIs to go " | |
1465 | "Data: x%x x%x x%x\n", | |
1466 | vport->num_disc_nodes, vport->fc_plogi_cnt, | |
1467 | vport->fc_flag, vport->port_state); | |
dea3101e | 1468 | /* Check to see if there are more PLOGIs to be sent */ |
2e0fef85 JS |
1469 | if (vport->fc_flag & FC_NLP_MORE) |
1470 | /* go thru NPR nodes and issue any remaining ELS PLOGIs */ | |
1471 | sentplogi = lpfc_els_disc_plogi(vport); | |
1472 | ||
dea3101e | 1473 | return; |
1474 | } | |
1475 | ||
e59058c4 | 1476 | /** |
3621a710 | 1477 | * lpfc_plogi_confirm_nport - Confirm pologi wwpn matches stored ndlp |
e59058c4 JS |
1478 | * @phba: pointer to lpfc hba data structure. |
1479 | * @prsp: pointer to response IOCB payload. | |
1480 | * @ndlp: pointer to a node-list data structure. | |
1481 | * | |
1482 | * This routine checks and indicates whether the WWPN of an N_Port, retrieved | |
1483 | * from a PLOGI, matches the WWPN that is stored in the @ndlp for that N_POrt. | |
1484 | * The following cases are considered N_Port confirmed: | |
1485 | * 1) The N_Port is a Fabric ndlp; 2) The @ndlp is on vport list and matches | |
1486 | * the WWPN of the N_Port logged into; 3) The @ndlp is not on vport list but | |
1487 | * it does not have WWPN assigned either. If the WWPN is confirmed, the | |
1488 | * pointer to the @ndlp will be returned. If the WWPN is not confirmed: | |
1489 | * 1) if there is a node on vport list other than the @ndlp with the same | |
1490 | * WWPN of the N_Port PLOGI logged into, the lpfc_unreg_rpi() will be invoked | |
1491 | * on that node to release the RPI associated with the node; 2) if there is | |
1492 | * no node found on vport list with the same WWPN of the N_Port PLOGI logged | |
1493 | * into, a new node shall be allocated (or activated). In either case, the | |
1494 | * parameters of the @ndlp shall be copied to the new_ndlp, the @ndlp shall | |
1495 | * be released and the new_ndlp shall be put on to the vport node list and | |
1496 | * its pointer returned as the confirmed node. | |
1497 | * | |
1498 | * Note that before the @ndlp got "released", the keepDID from not-matching | |
1499 | * or inactive "new_ndlp" on the vport node list is assigned to the nlp_DID | |
1500 | * of the @ndlp. This is because the release of @ndlp is actually to put it | |
1501 | * into an inactive state on the vport node list and the vport node list | |
1502 | * management algorithm does not allow two node with a same DID. | |
1503 | * | |
1504 | * Return code | |
1505 | * pointer to the PLOGI N_Port @ndlp | |
1506 | **/ | |
488d1469 | 1507 | static struct lpfc_nodelist * |
92d7f7b0 | 1508 | lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp, |
488d1469 JS |
1509 | struct lpfc_nodelist *ndlp) |
1510 | { | |
2e0fef85 | 1511 | struct lpfc_vport *vport = ndlp->vport; |
488d1469 | 1512 | struct lpfc_nodelist *new_ndlp; |
0ff10d46 JS |
1513 | struct lpfc_rport_data *rdata; |
1514 | struct fc_rport *rport; | |
488d1469 | 1515 | struct serv_parm *sp; |
92d7f7b0 | 1516 | uint8_t name[sizeof(struct lpfc_name)]; |
58da1ffb | 1517 | uint32_t rc, keepDID = 0; |
38b92ef8 JS |
1518 | int put_node; |
1519 | int put_rport; | |
cff261f6 | 1520 | unsigned long *active_rrqs_xri_bitmap = NULL; |
488d1469 | 1521 | |
2fb9bd8b JS |
1522 | /* Fabric nodes can have the same WWPN so we don't bother searching |
1523 | * by WWPN. Just return the ndlp that was given to us. | |
1524 | */ | |
1525 | if (ndlp->nlp_type & NLP_FABRIC) | |
1526 | return ndlp; | |
1527 | ||
92d7f7b0 | 1528 | sp = (struct serv_parm *) ((uint8_t *) prsp + sizeof(uint32_t)); |
685f0bf7 | 1529 | memset(name, 0, sizeof(struct lpfc_name)); |
488d1469 | 1530 | |
685f0bf7 | 1531 | /* Now we find out if the NPort we are logging into, matches the WWPN |
488d1469 JS |
1532 | * we have for that ndlp. If not, we have some work to do. |
1533 | */ | |
2e0fef85 | 1534 | new_ndlp = lpfc_findnode_wwpn(vport, &sp->portName); |
488d1469 | 1535 | |
e47c9093 | 1536 | if (new_ndlp == ndlp && NLP_CHK_NODE_ACT(new_ndlp)) |
488d1469 | 1537 | return ndlp; |
cff261f6 JS |
1538 | if (phba->sli_rev == LPFC_SLI_REV4) { |
1539 | active_rrqs_xri_bitmap = mempool_alloc(phba->active_rrq_pool, | |
1540 | GFP_KERNEL); | |
1541 | if (active_rrqs_xri_bitmap) | |
1542 | memset(active_rrqs_xri_bitmap, 0, | |
1543 | phba->cfg_rrq_xri_bitmap_sz); | |
1544 | } | |
488d1469 | 1545 | |
34f5ad8b JS |
1546 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
1547 | "3178 PLOGI confirm: ndlp %p x%x: new_ndlp %p\n", | |
1548 | ndlp, ndlp->nlp_DID, new_ndlp); | |
1549 | ||
488d1469 | 1550 | if (!new_ndlp) { |
2e0fef85 JS |
1551 | rc = memcmp(&ndlp->nlp_portname, name, |
1552 | sizeof(struct lpfc_name)); | |
cff261f6 JS |
1553 | if (!rc) { |
1554 | if (active_rrqs_xri_bitmap) | |
1555 | mempool_free(active_rrqs_xri_bitmap, | |
1556 | phba->active_rrq_pool); | |
92795650 | 1557 | return ndlp; |
cff261f6 | 1558 | } |
488d1469 | 1559 | new_ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_ATOMIC); |
cff261f6 JS |
1560 | if (!new_ndlp) { |
1561 | if (active_rrqs_xri_bitmap) | |
1562 | mempool_free(active_rrqs_xri_bitmap, | |
1563 | phba->active_rrq_pool); | |
488d1469 | 1564 | return ndlp; |
cff261f6 | 1565 | } |
2e0fef85 | 1566 | lpfc_nlp_init(vport, new_ndlp, ndlp->nlp_DID); |
e47c9093 | 1567 | } else if (!NLP_CHK_NODE_ACT(new_ndlp)) { |
58da1ffb JS |
1568 | rc = memcmp(&ndlp->nlp_portname, name, |
1569 | sizeof(struct lpfc_name)); | |
cff261f6 JS |
1570 | if (!rc) { |
1571 | if (active_rrqs_xri_bitmap) | |
1572 | mempool_free(active_rrqs_xri_bitmap, | |
1573 | phba->active_rrq_pool); | |
58da1ffb | 1574 | return ndlp; |
cff261f6 | 1575 | } |
e47c9093 JS |
1576 | new_ndlp = lpfc_enable_node(vport, new_ndlp, |
1577 | NLP_STE_UNUSED_NODE); | |
cff261f6 JS |
1578 | if (!new_ndlp) { |
1579 | if (active_rrqs_xri_bitmap) | |
1580 | mempool_free(active_rrqs_xri_bitmap, | |
1581 | phba->active_rrq_pool); | |
e47c9093 | 1582 | return ndlp; |
cff261f6 | 1583 | } |
58da1ffb | 1584 | keepDID = new_ndlp->nlp_DID; |
cff261f6 JS |
1585 | if ((phba->sli_rev == LPFC_SLI_REV4) && active_rrqs_xri_bitmap) |
1586 | memcpy(active_rrqs_xri_bitmap, | |
1587 | new_ndlp->active_rrqs_xri_bitmap, | |
1588 | phba->cfg_rrq_xri_bitmap_sz); | |
19ca7609 | 1589 | } else { |
58da1ffb | 1590 | keepDID = new_ndlp->nlp_DID; |
cff261f6 JS |
1591 | if (phba->sli_rev == LPFC_SLI_REV4 && |
1592 | active_rrqs_xri_bitmap) | |
1593 | memcpy(active_rrqs_xri_bitmap, | |
1594 | new_ndlp->active_rrqs_xri_bitmap, | |
1595 | phba->cfg_rrq_xri_bitmap_sz); | |
19ca7609 | 1596 | } |
488d1469 | 1597 | |
2e0fef85 | 1598 | lpfc_unreg_rpi(vport, new_ndlp); |
488d1469 | 1599 | new_ndlp->nlp_DID = ndlp->nlp_DID; |
92795650 | 1600 | new_ndlp->nlp_prev_state = ndlp->nlp_prev_state; |
19ca7609 | 1601 | if (phba->sli_rev == LPFC_SLI_REV4) |
cff261f6 JS |
1602 | memcpy(new_ndlp->active_rrqs_xri_bitmap, |
1603 | ndlp->active_rrqs_xri_bitmap, | |
1604 | phba->cfg_rrq_xri_bitmap_sz); | |
0ff10d46 JS |
1605 | |
1606 | if (ndlp->nlp_flag & NLP_NPR_2B_DISC) | |
1607 | new_ndlp->nlp_flag |= NLP_NPR_2B_DISC; | |
1608 | ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; | |
1609 | ||
e47c9093 | 1610 | /* Set state will put new_ndlp on to node list if not already done */ |
2e0fef85 | 1611 | lpfc_nlp_set_state(vport, new_ndlp, ndlp->nlp_state); |
488d1469 | 1612 | |
2e0fef85 | 1613 | /* Move this back to NPR state */ |
87af33fe JS |
1614 | if (memcmp(&ndlp->nlp_portname, name, sizeof(struct lpfc_name)) == 0) { |
1615 | /* The new_ndlp is replacing ndlp totally, so we need | |
1616 | * to put ndlp on UNUSED list and try to free it. | |
1617 | */ | |
34f5ad8b JS |
1618 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
1619 | "3179 PLOGI confirm NEW: %x %x\n", | |
1620 | new_ndlp->nlp_DID, keepDID); | |
0ff10d46 JS |
1621 | |
1622 | /* Fix up the rport accordingly */ | |
1623 | rport = ndlp->rport; | |
1624 | if (rport) { | |
1625 | rdata = rport->dd_data; | |
1626 | if (rdata->pnode == ndlp) { | |
1627 | lpfc_nlp_put(ndlp); | |
1628 | ndlp->rport = NULL; | |
1629 | rdata->pnode = lpfc_nlp_get(new_ndlp); | |
1630 | new_ndlp->rport = rport; | |
1631 | } | |
1632 | new_ndlp->nlp_type = ndlp->nlp_type; | |
1633 | } | |
58da1ffb JS |
1634 | /* We shall actually free the ndlp with both nlp_DID and |
1635 | * nlp_portname fields equals 0 to avoid any ndlp on the | |
1636 | * nodelist never to be used. | |
1637 | */ | |
1638 | if (ndlp->nlp_DID == 0) { | |
1639 | spin_lock_irq(&phba->ndlp_lock); | |
1640 | NLP_SET_FREE_REQ(ndlp); | |
1641 | spin_unlock_irq(&phba->ndlp_lock); | |
1642 | } | |
0ff10d46 | 1643 | |
58da1ffb JS |
1644 | /* Two ndlps cannot have the same did on the nodelist */ |
1645 | ndlp->nlp_DID = keepDID; | |
cff261f6 JS |
1646 | if (phba->sli_rev == LPFC_SLI_REV4 && |
1647 | active_rrqs_xri_bitmap) | |
1648 | memcpy(ndlp->active_rrqs_xri_bitmap, | |
1649 | active_rrqs_xri_bitmap, | |
1650 | phba->cfg_rrq_xri_bitmap_sz); | |
2e0fef85 | 1651 | lpfc_drop_node(vport, ndlp); |
87af33fe | 1652 | } |
92795650 | 1653 | else { |
34f5ad8b JS |
1654 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
1655 | "3180 PLOGI confirm SWAP: %x %x\n", | |
1656 | new_ndlp->nlp_DID, keepDID); | |
1657 | ||
2e0fef85 | 1658 | lpfc_unreg_rpi(vport, ndlp); |
34f5ad8b | 1659 | |
58da1ffb JS |
1660 | /* Two ndlps cannot have the same did */ |
1661 | ndlp->nlp_DID = keepDID; | |
cff261f6 JS |
1662 | if (phba->sli_rev == LPFC_SLI_REV4 && |
1663 | active_rrqs_xri_bitmap) | |
1664 | memcpy(ndlp->active_rrqs_xri_bitmap, | |
1665 | active_rrqs_xri_bitmap, | |
1666 | phba->cfg_rrq_xri_bitmap_sz); | |
34f5ad8b | 1667 | |
38b92ef8 | 1668 | /* Since we are swapping the ndlp passed in with the new one |
34f5ad8b JS |
1669 | * and the did has already been swapped, copy over state. |
1670 | * The new WWNs are already in new_ndlp since thats what | |
1671 | * we looked it up by in the begining of this routine. | |
38b92ef8 | 1672 | */ |
38b92ef8 | 1673 | new_ndlp->nlp_state = ndlp->nlp_state; |
34f5ad8b JS |
1674 | |
1675 | /* Since we are switching over to the new_ndlp, the old | |
1676 | * ndlp should be put in the NPR state, unless we have | |
1677 | * already started re-discovery on it. | |
1678 | */ | |
1679 | if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) || | |
1680 | (ndlp->nlp_state == NLP_STE_MAPPED_NODE)) | |
1681 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); | |
1682 | ||
38b92ef8 JS |
1683 | /* Fix up the rport accordingly */ |
1684 | rport = ndlp->rport; | |
1685 | if (rport) { | |
1686 | rdata = rport->dd_data; | |
1687 | put_node = rdata->pnode != NULL; | |
1688 | put_rport = ndlp->rport != NULL; | |
1689 | rdata->pnode = NULL; | |
1690 | ndlp->rport = NULL; | |
1691 | if (put_node) | |
1692 | lpfc_nlp_put(ndlp); | |
1693 | if (put_rport) | |
1694 | put_device(&rport->dev); | |
1695 | } | |
92795650 | 1696 | } |
cff261f6 JS |
1697 | if (phba->sli_rev == LPFC_SLI_REV4 && |
1698 | active_rrqs_xri_bitmap) | |
1699 | mempool_free(active_rrqs_xri_bitmap, | |
1700 | phba->active_rrq_pool); | |
488d1469 JS |
1701 | return new_ndlp; |
1702 | } | |
1703 | ||
e59058c4 | 1704 | /** |
3621a710 | 1705 | * lpfc_end_rscn - Check and handle more rscn for a vport |
e59058c4 JS |
1706 | * @vport: pointer to a host virtual N_Port data structure. |
1707 | * | |
1708 | * This routine checks whether more Registration State Change | |
1709 | * Notifications (RSCNs) came in while the discovery state machine was in | |
1710 | * the FC_RSCN_MODE. If so, the lpfc_els_handle_rscn() routine will be | |
1711 | * invoked to handle the additional RSCNs for the @vport. Otherwise, the | |
1712 | * FC_RSCN_MODE bit will be cleared with the @vport to mark as the end of | |
1713 | * handling the RSCNs. | |
1714 | **/ | |
87af33fe JS |
1715 | void |
1716 | lpfc_end_rscn(struct lpfc_vport *vport) | |
1717 | { | |
1718 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
1719 | ||
1720 | if (vport->fc_flag & FC_RSCN_MODE) { | |
1721 | /* | |
1722 | * Check to see if more RSCNs came in while we were | |
1723 | * processing this one. | |
1724 | */ | |
1725 | if (vport->fc_rscn_id_cnt || | |
1726 | (vport->fc_flag & FC_RSCN_DISCOVERY) != 0) | |
1727 | lpfc_els_handle_rscn(vport); | |
1728 | else { | |
1729 | spin_lock_irq(shost->host_lock); | |
1730 | vport->fc_flag &= ~FC_RSCN_MODE; | |
1731 | spin_unlock_irq(shost->host_lock); | |
1732 | } | |
1733 | } | |
1734 | } | |
1735 | ||
19ca7609 JS |
1736 | /** |
1737 | * lpfc_cmpl_els_rrq - Completion handled for els RRQs. | |
1738 | * @phba: pointer to lpfc hba data structure. | |
1739 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
1740 | * @rspiocb: pointer to lpfc response iocb data structure. | |
1741 | * | |
1742 | * This routine will call the clear rrq function to free the rrq and | |
1743 | * clear the xri's bit in the ndlp's xri_bitmap. If the ndlp does not | |
1744 | * exist then the clear_rrq is still called because the rrq needs to | |
1745 | * be freed. | |
1746 | **/ | |
1747 | ||
1748 | static void | |
1749 | lpfc_cmpl_els_rrq(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
1750 | struct lpfc_iocbq *rspiocb) | |
1751 | { | |
1752 | struct lpfc_vport *vport = cmdiocb->vport; | |
1753 | IOCB_t *irsp; | |
1754 | struct lpfc_nodelist *ndlp; | |
1755 | struct lpfc_node_rrq *rrq; | |
1756 | ||
1757 | /* we pass cmdiocb to state machine which needs rspiocb as well */ | |
1758 | rrq = cmdiocb->context_un.rrq; | |
1759 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
1760 | ||
1761 | irsp = &rspiocb->iocb; | |
1762 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, | |
1763 | "RRQ cmpl: status:x%x/x%x did:x%x", | |
1764 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1765 | irsp->un.elsreq64.remoteID); | |
1766 | ||
1767 | ndlp = lpfc_findnode_did(vport, irsp->un.elsreq64.remoteID); | |
1768 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || ndlp != rrq->ndlp) { | |
1769 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
1770 | "2882 RRQ completes to NPort x%x " | |
1771 | "with no ndlp. Data: x%x x%x x%x\n", | |
1772 | irsp->un.elsreq64.remoteID, | |
1773 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1774 | irsp->ulpIoTag); | |
1775 | goto out; | |
1776 | } | |
1777 | ||
1778 | /* rrq completes to NPort <nlp_DID> */ | |
1779 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
1780 | "2880 RRQ completes to NPort x%x " | |
1781 | "Data: x%x x%x x%x x%x x%x\n", | |
1782 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
1783 | irsp->ulpTimeout, rrq->xritag, rrq->rxid); | |
1784 | ||
1785 | if (irsp->ulpStatus) { | |
1786 | /* Check for retry */ | |
1787 | /* RRQ failed Don't print the vport to vport rjts */ | |
1788 | if (irsp->ulpStatus != IOSTAT_LS_RJT || | |
1789 | (((irsp->un.ulpWord[4]) >> 16 != LSRJT_INVALID_CMD) && | |
1790 | ((irsp->un.ulpWord[4]) >> 16 != LSRJT_UNABLE_TPC)) || | |
1791 | (phba)->pport->cfg_log_verbose & LOG_ELS) | |
1792 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
1793 | "2881 RRQ failure DID:%06X Status:x%x/x%x\n", | |
1794 | ndlp->nlp_DID, irsp->ulpStatus, | |
1795 | irsp->un.ulpWord[4]); | |
1796 | } | |
1797 | out: | |
1798 | if (rrq) | |
1799 | lpfc_clr_rrq_active(phba, rrq->xritag, rrq); | |
1800 | lpfc_els_free_iocb(phba, cmdiocb); | |
1801 | return; | |
1802 | } | |
e59058c4 | 1803 | /** |
3621a710 | 1804 | * lpfc_cmpl_els_plogi - Completion callback function for plogi |
e59058c4 JS |
1805 | * @phba: pointer to lpfc hba data structure. |
1806 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
1807 | * @rspiocb: pointer to lpfc response iocb data structure. | |
1808 | * | |
1809 | * This routine is the completion callback function for issuing the Port | |
1810 | * Login (PLOGI) command. For PLOGI completion, there must be an active | |
1811 | * ndlp on the vport node list that matches the remote node ID from the | |
25985edc | 1812 | * PLOGI response IOCB. If such ndlp does not exist, the PLOGI is simply |
e59058c4 JS |
1813 | * ignored and command IOCB released. The PLOGI response IOCB status is |
1814 | * checked for error conditons. If there is error status reported, PLOGI | |
1815 | * retry shall be attempted by invoking the lpfc_els_retry() routine. | |
1816 | * Otherwise, the lpfc_plogi_confirm_nport() routine shall be invoked on | |
1817 | * the ndlp and the NLP_EVT_CMPL_PLOGI state to the Discover State Machine | |
1818 | * (DSM) is set for this PLOGI completion. Finally, it checks whether | |
1819 | * there are additional N_Port nodes with the vport that need to perform | |
1820 | * PLOGI. If so, the lpfc_more_plogi() routine is invoked to issue addition | |
1821 | * PLOGIs. | |
1822 | **/ | |
dea3101e | 1823 | static void |
2e0fef85 JS |
1824 | lpfc_cmpl_els_plogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
1825 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 1826 | { |
2e0fef85 JS |
1827 | struct lpfc_vport *vport = cmdiocb->vport; |
1828 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e | 1829 | IOCB_t *irsp; |
dea3101e | 1830 | struct lpfc_nodelist *ndlp; |
92795650 | 1831 | struct lpfc_dmabuf *prsp; |
eb016566 | 1832 | int disc, rc; |
dea3101e | 1833 | |
dea3101e | 1834 | /* we pass cmdiocb to state machine which needs rspiocb as well */ |
1835 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
1836 | ||
1837 | irsp = &rspiocb->iocb; | |
858c9f6c JS |
1838 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1839 | "PLOGI cmpl: status:x%x/x%x did:x%x", | |
1840 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1841 | irsp->un.elsreq64.remoteID); | |
1842 | ||
2e0fef85 | 1843 | ndlp = lpfc_findnode_did(vport, irsp->un.elsreq64.remoteID); |
e47c9093 | 1844 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { |
e8b62011 JS |
1845 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
1846 | "0136 PLOGI completes to NPort x%x " | |
1847 | "with no ndlp. Data: x%x x%x x%x\n", | |
1848 | irsp->un.elsreq64.remoteID, | |
1849 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1850 | irsp->ulpIoTag); | |
488d1469 | 1851 | goto out; |
ed957684 | 1852 | } |
dea3101e | 1853 | |
1854 | /* Since ndlp can be freed in the disc state machine, note if this node | |
1855 | * is being used during discovery. | |
1856 | */ | |
2e0fef85 | 1857 | spin_lock_irq(shost->host_lock); |
dea3101e | 1858 | disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC); |
488d1469 | 1859 | ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; |
2e0fef85 | 1860 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1861 | rc = 0; |
1862 | ||
1863 | /* PLOGI completes to NPort <nlp_DID> */ | |
e8b62011 JS |
1864 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
1865 | "0102 PLOGI completes to NPort x%x " | |
1866 | "Data: x%x x%x x%x x%x x%x\n", | |
1867 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
1868 | irsp->ulpTimeout, disc, vport->num_disc_nodes); | |
dea3101e | 1869 | /* Check to see if link went down during discovery */ |
2e0fef85 JS |
1870 | if (lpfc_els_chk_latt(vport)) { |
1871 | spin_lock_irq(shost->host_lock); | |
dea3101e | 1872 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 | 1873 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1874 | goto out; |
1875 | } | |
1876 | ||
dea3101e | 1877 | if (irsp->ulpStatus) { |
1878 | /* Check for retry */ | |
1879 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { | |
1880 | /* ELS command is being retried */ | |
1881 | if (disc) { | |
2e0fef85 | 1882 | spin_lock_irq(shost->host_lock); |
dea3101e | 1883 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 | 1884 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1885 | } |
1886 | goto out; | |
1887 | } | |
2a9bf3d0 JS |
1888 | /* PLOGI failed Don't print the vport to vport rjts */ |
1889 | if (irsp->ulpStatus != IOSTAT_LS_RJT || | |
1890 | (((irsp->un.ulpWord[4]) >> 16 != LSRJT_INVALID_CMD) && | |
1891 | ((irsp->un.ulpWord[4]) >> 16 != LSRJT_UNABLE_TPC)) || | |
1892 | (phba)->pport->cfg_log_verbose & LOG_ELS) | |
1893 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
e40a02c1 JS |
1894 | "2753 PLOGI failure DID:%06X Status:x%x/x%x\n", |
1895 | ndlp->nlp_DID, irsp->ulpStatus, | |
1896 | irsp->un.ulpWord[4]); | |
dea3101e | 1897 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ |
e47c9093 | 1898 | if (lpfc_error_lost_link(irsp)) |
c9f8735b | 1899 | rc = NLP_STE_FREED_NODE; |
e47c9093 | 1900 | else |
2e0fef85 | 1901 | rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 1902 | NLP_EVT_CMPL_PLOGI); |
dea3101e | 1903 | } else { |
1904 | /* Good status, call state machine */ | |
92795650 | 1905 | prsp = list_entry(((struct lpfc_dmabuf *) |
92d7f7b0 JS |
1906 | cmdiocb->context2)->list.next, |
1907 | struct lpfc_dmabuf, list); | |
1908 | ndlp = lpfc_plogi_confirm_nport(phba, prsp->virt, ndlp); | |
2e0fef85 | 1909 | rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 1910 | NLP_EVT_CMPL_PLOGI); |
dea3101e | 1911 | } |
1912 | ||
2e0fef85 | 1913 | if (disc && vport->num_disc_nodes) { |
dea3101e | 1914 | /* Check to see if there are more PLOGIs to be sent */ |
2e0fef85 | 1915 | lpfc_more_plogi(vport); |
dea3101e | 1916 | |
2e0fef85 JS |
1917 | if (vport->num_disc_nodes == 0) { |
1918 | spin_lock_irq(shost->host_lock); | |
1919 | vport->fc_flag &= ~FC_NDISC_ACTIVE; | |
1920 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 1921 | |
2e0fef85 | 1922 | lpfc_can_disctmo(vport); |
87af33fe | 1923 | lpfc_end_rscn(vport); |
dea3101e | 1924 | } |
1925 | } | |
1926 | ||
1927 | out: | |
1928 | lpfc_els_free_iocb(phba, cmdiocb); | |
1929 | return; | |
1930 | } | |
1931 | ||
e59058c4 | 1932 | /** |
3621a710 | 1933 | * lpfc_issue_els_plogi - Issue an plogi iocb command for a vport |
e59058c4 JS |
1934 | * @vport: pointer to a host virtual N_Port data structure. |
1935 | * @did: destination port identifier. | |
1936 | * @retry: number of retries to the command IOCB. | |
1937 | * | |
1938 | * This routine issues a Port Login (PLOGI) command to a remote N_Port | |
1939 | * (with the @did) for a @vport. Before issuing a PLOGI to a remote N_Port, | |
1940 | * the ndlp with the remote N_Port DID must exist on the @vport's ndlp list. | |
1941 | * This routine constructs the proper feilds of the PLOGI IOCB and invokes | |
1942 | * the lpfc_sli_issue_iocb() routine to send out PLOGI ELS command. | |
1943 | * | |
1944 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
1945 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
1946 | * will be stored into the context1 field of the IOCB for the completion | |
1947 | * callback function to the PLOGI ELS command. | |
1948 | * | |
1949 | * Return code | |
1950 | * 0 - Successfully issued a plogi for @vport | |
1951 | * 1 - failed to issue a plogi for @vport | |
1952 | **/ | |
dea3101e | 1953 | int |
2e0fef85 | 1954 | lpfc_issue_els_plogi(struct lpfc_vport *vport, uint32_t did, uint8_t retry) |
dea3101e | 1955 | { |
2e0fef85 | 1956 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 1957 | struct serv_parm *sp; |
1958 | IOCB_t *icmd; | |
98c9ea5c | 1959 | struct lpfc_nodelist *ndlp; |
dea3101e | 1960 | struct lpfc_iocbq *elsiocb; |
dea3101e | 1961 | struct lpfc_sli *psli; |
1962 | uint8_t *pcmd; | |
1963 | uint16_t cmdsize; | |
92d7f7b0 | 1964 | int ret; |
dea3101e | 1965 | |
1966 | psli = &phba->sli; | |
dea3101e | 1967 | |
98c9ea5c | 1968 | ndlp = lpfc_findnode_did(vport, did); |
e47c9093 JS |
1969 | if (ndlp && !NLP_CHK_NODE_ACT(ndlp)) |
1970 | ndlp = NULL; | |
98c9ea5c | 1971 | |
e47c9093 | 1972 | /* If ndlp is not NULL, we will bump the reference count on it */ |
92d7f7b0 | 1973 | cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); |
98c9ea5c | 1974 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did, |
2e0fef85 | 1975 | ELS_CMD_PLOGI); |
c9f8735b JW |
1976 | if (!elsiocb) |
1977 | return 1; | |
dea3101e | 1978 | |
1979 | icmd = &elsiocb->iocb; | |
1980 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
1981 | ||
1982 | /* For PLOGI request, remainder of payload is service parameters */ | |
1983 | *((uint32_t *) (pcmd)) = ELS_CMD_PLOGI; | |
92d7f7b0 JS |
1984 | pcmd += sizeof(uint32_t); |
1985 | memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); | |
dea3101e | 1986 | sp = (struct serv_parm *) pcmd; |
1987 | ||
5ac6b303 JS |
1988 | /* |
1989 | * If we are a N-port connected to a Fabric, fix-up paramm's so logins | |
1990 | * to device on remote loops work. | |
1991 | */ | |
1992 | if ((vport->fc_flag & FC_FABRIC) && !(vport->fc_flag & FC_PUBLIC_LOOP)) | |
1993 | sp->cmn.altBbCredit = 1; | |
1994 | ||
dea3101e | 1995 | if (sp->cmn.fcphLow < FC_PH_4_3) |
1996 | sp->cmn.fcphLow = FC_PH_4_3; | |
1997 | ||
1998 | if (sp->cmn.fcphHigh < FC_PH3) | |
1999 | sp->cmn.fcphHigh = FC_PH3; | |
2000 | ||
858c9f6c JS |
2001 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2002 | "Issue PLOGI: did:x%x", | |
2003 | did, 0, 0); | |
2004 | ||
dea3101e | 2005 | phba->fc_stat.elsXmitPLOGI++; |
2006 | elsiocb->iocb_cmpl = lpfc_cmpl_els_plogi; | |
3772a991 | 2007 | ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
92d7f7b0 JS |
2008 | |
2009 | if (ret == IOCB_ERROR) { | |
dea3101e | 2010 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 2011 | return 1; |
dea3101e | 2012 | } |
c9f8735b | 2013 | return 0; |
dea3101e | 2014 | } |
2015 | ||
e59058c4 | 2016 | /** |
3621a710 | 2017 | * lpfc_cmpl_els_prli - Completion callback function for prli |
e59058c4 JS |
2018 | * @phba: pointer to lpfc hba data structure. |
2019 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
2020 | * @rspiocb: pointer to lpfc response iocb data structure. | |
2021 | * | |
2022 | * This routine is the completion callback function for a Process Login | |
2023 | * (PRLI) ELS command. The PRLI response IOCB status is checked for error | |
2024 | * status. If there is error status reported, PRLI retry shall be attempted | |
2025 | * by invoking the lpfc_els_retry() routine. Otherwise, the state | |
2026 | * NLP_EVT_CMPL_PRLI is sent to the Discover State Machine (DSM) for this | |
2027 | * ndlp to mark the PRLI completion. | |
2028 | **/ | |
dea3101e | 2029 | static void |
2e0fef85 JS |
2030 | lpfc_cmpl_els_prli(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
2031 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 2032 | { |
2e0fef85 JS |
2033 | struct lpfc_vport *vport = cmdiocb->vport; |
2034 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e | 2035 | IOCB_t *irsp; |
2036 | struct lpfc_sli *psli; | |
2037 | struct lpfc_nodelist *ndlp; | |
2038 | ||
2039 | psli = &phba->sli; | |
2040 | /* we pass cmdiocb to state machine which needs rspiocb as well */ | |
2041 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
2042 | ||
2043 | irsp = &(rspiocb->iocb); | |
2044 | ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
2e0fef85 | 2045 | spin_lock_irq(shost->host_lock); |
dea3101e | 2046 | ndlp->nlp_flag &= ~NLP_PRLI_SND; |
2e0fef85 | 2047 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2048 | |
858c9f6c JS |
2049 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2050 | "PRLI cmpl: status:x%x/x%x did:x%x", | |
2051 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
2052 | ndlp->nlp_DID); | |
dea3101e | 2053 | /* PRLI completes to NPort <nlp_DID> */ |
e8b62011 JS |
2054 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
2055 | "0103 PRLI completes to NPort x%x " | |
2056 | "Data: x%x x%x x%x x%x\n", | |
2057 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
2058 | irsp->ulpTimeout, vport->num_disc_nodes); | |
dea3101e | 2059 | |
2e0fef85 | 2060 | vport->fc_prli_sent--; |
dea3101e | 2061 | /* Check to see if link went down during discovery */ |
2e0fef85 | 2062 | if (lpfc_els_chk_latt(vport)) |
dea3101e | 2063 | goto out; |
2064 | ||
2065 | if (irsp->ulpStatus) { | |
2066 | /* Check for retry */ | |
2067 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { | |
2068 | /* ELS command is being retried */ | |
2069 | goto out; | |
2070 | } | |
2071 | /* PRLI failed */ | |
e40a02c1 JS |
2072 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
2073 | "2754 PRLI failure DID:%06X Status:x%x/x%x\n", | |
2074 | ndlp->nlp_DID, irsp->ulpStatus, | |
2075 | irsp->un.ulpWord[4]); | |
dea3101e | 2076 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ |
e47c9093 | 2077 | if (lpfc_error_lost_link(irsp)) |
dea3101e | 2078 | goto out; |
e47c9093 | 2079 | else |
2e0fef85 | 2080 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 2081 | NLP_EVT_CMPL_PRLI); |
e47c9093 | 2082 | } else |
dea3101e | 2083 | /* Good status, call state machine */ |
2e0fef85 | 2084 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 2085 | NLP_EVT_CMPL_PRLI); |
dea3101e | 2086 | out: |
2087 | lpfc_els_free_iocb(phba, cmdiocb); | |
2088 | return; | |
2089 | } | |
2090 | ||
e59058c4 | 2091 | /** |
3621a710 | 2092 | * lpfc_issue_els_prli - Issue a prli iocb command for a vport |
e59058c4 JS |
2093 | * @vport: pointer to a host virtual N_Port data structure. |
2094 | * @ndlp: pointer to a node-list data structure. | |
2095 | * @retry: number of retries to the command IOCB. | |
2096 | * | |
2097 | * This routine issues a Process Login (PRLI) ELS command for the | |
2098 | * @vport. The PRLI service parameters are set up in the payload of the | |
2099 | * PRLI Request command and the pointer to lpfc_cmpl_els_prli() routine | |
2100 | * is put to the IOCB completion callback func field before invoking the | |
2101 | * routine lpfc_sli_issue_iocb() to send out PRLI command. | |
2102 | * | |
2103 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
2104 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
2105 | * will be stored into the context1 field of the IOCB for the completion | |
2106 | * callback function to the PRLI ELS command. | |
2107 | * | |
2108 | * Return code | |
2109 | * 0 - successfully issued prli iocb command for @vport | |
2110 | * 1 - failed to issue prli iocb command for @vport | |
2111 | **/ | |
dea3101e | 2112 | int |
2e0fef85 | 2113 | lpfc_issue_els_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
dea3101e | 2114 | uint8_t retry) |
2115 | { | |
2e0fef85 JS |
2116 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
2117 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 2118 | PRLI *npr; |
2119 | IOCB_t *icmd; | |
2120 | struct lpfc_iocbq *elsiocb; | |
dea3101e | 2121 | uint8_t *pcmd; |
2122 | uint16_t cmdsize; | |
2123 | ||
92d7f7b0 | 2124 | cmdsize = (sizeof(uint32_t) + sizeof(PRLI)); |
2e0fef85 JS |
2125 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
2126 | ndlp->nlp_DID, ELS_CMD_PRLI); | |
488d1469 | 2127 | if (!elsiocb) |
c9f8735b | 2128 | return 1; |
dea3101e | 2129 | |
2130 | icmd = &elsiocb->iocb; | |
2131 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
2132 | ||
2133 | /* For PRLI request, remainder of payload is service parameters */ | |
92d7f7b0 | 2134 | memset(pcmd, 0, (sizeof(PRLI) + sizeof(uint32_t))); |
dea3101e | 2135 | *((uint32_t *) (pcmd)) = ELS_CMD_PRLI; |
92d7f7b0 | 2136 | pcmd += sizeof(uint32_t); |
dea3101e | 2137 | |
2138 | /* For PRLI, remainder of payload is PRLI parameter page */ | |
2139 | npr = (PRLI *) pcmd; | |
2140 | /* | |
2141 | * If our firmware version is 3.20 or later, | |
2142 | * set the following bits for FC-TAPE support. | |
2143 | */ | |
2144 | if (phba->vpd.rev.feaLevelHigh >= 0x02) { | |
2145 | npr->ConfmComplAllowed = 1; | |
2146 | npr->Retry = 1; | |
2147 | npr->TaskRetryIdReq = 1; | |
2148 | } | |
2149 | npr->estabImagePair = 1; | |
2150 | npr->readXferRdyDis = 1; | |
3cb01c57 JS |
2151 | if (vport->cfg_first_burst_size) |
2152 | npr->writeXferRdyDis = 1; | |
dea3101e | 2153 | |
2154 | /* For FCP support */ | |
2155 | npr->prliType = PRLI_FCP_TYPE; | |
2156 | npr->initiatorFunc = 1; | |
2157 | ||
858c9f6c JS |
2158 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2159 | "Issue PRLI: did:x%x", | |
2160 | ndlp->nlp_DID, 0, 0); | |
2161 | ||
dea3101e | 2162 | phba->fc_stat.elsXmitPRLI++; |
2163 | elsiocb->iocb_cmpl = lpfc_cmpl_els_prli; | |
2e0fef85 | 2164 | spin_lock_irq(shost->host_lock); |
dea3101e | 2165 | ndlp->nlp_flag |= NLP_PRLI_SND; |
2e0fef85 | 2166 | spin_unlock_irq(shost->host_lock); |
3772a991 JS |
2167 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
2168 | IOCB_ERROR) { | |
2e0fef85 | 2169 | spin_lock_irq(shost->host_lock); |
dea3101e | 2170 | ndlp->nlp_flag &= ~NLP_PRLI_SND; |
2e0fef85 | 2171 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2172 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 2173 | return 1; |
dea3101e | 2174 | } |
2e0fef85 | 2175 | vport->fc_prli_sent++; |
c9f8735b | 2176 | return 0; |
dea3101e | 2177 | } |
2178 | ||
90160e01 | 2179 | /** |
3621a710 | 2180 | * lpfc_rscn_disc - Perform rscn discovery for a vport |
90160e01 JS |
2181 | * @vport: pointer to a host virtual N_Port data structure. |
2182 | * | |
2183 | * This routine performs Registration State Change Notification (RSCN) | |
2184 | * discovery for a @vport. If the @vport's node port recovery count is not | |
2185 | * zero, it will invoke the lpfc_els_disc_plogi() to perform PLOGI for all | |
2186 | * the nodes that need recovery. If none of the PLOGI were needed through | |
2187 | * the lpfc_els_disc_plogi() routine, the lpfc_end_rscn() routine shall be | |
2188 | * invoked to check and handle possible more RSCN came in during the period | |
2189 | * of processing the current ones. | |
2190 | **/ | |
2191 | static void | |
2192 | lpfc_rscn_disc(struct lpfc_vport *vport) | |
2193 | { | |
2194 | lpfc_can_disctmo(vport); | |
2195 | ||
2196 | /* RSCN discovery */ | |
2197 | /* go thru NPR nodes and issue ELS PLOGIs */ | |
2198 | if (vport->fc_npr_cnt) | |
2199 | if (lpfc_els_disc_plogi(vport)) | |
2200 | return; | |
2201 | ||
2202 | lpfc_end_rscn(vport); | |
2203 | } | |
2204 | ||
2205 | /** | |
3621a710 | 2206 | * lpfc_adisc_done - Complete the adisc phase of discovery |
90160e01 JS |
2207 | * @vport: pointer to lpfc_vport hba data structure that finished all ADISCs. |
2208 | * | |
2209 | * This function is called when the final ADISC is completed during discovery. | |
2210 | * This function handles clearing link attention or issuing reg_vpi depending | |
2211 | * on whether npiv is enabled. This function also kicks off the PLOGI phase of | |
2212 | * discovery. | |
2213 | * This function is called with no locks held. | |
2214 | **/ | |
2215 | static void | |
2216 | lpfc_adisc_done(struct lpfc_vport *vport) | |
2217 | { | |
2218 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
2219 | struct lpfc_hba *phba = vport->phba; | |
2220 | ||
2221 | /* | |
2222 | * For NPIV, cmpl_reg_vpi will set port_state to READY, | |
2223 | * and continue discovery. | |
2224 | */ | |
2225 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && | |
6fb120a7 JS |
2226 | !(vport->fc_flag & FC_RSCN_MODE) && |
2227 | (phba->sli_rev < LPFC_SLI_REV4)) { | |
d454c91f JS |
2228 | /* The ADISCs are complete. Doesn't matter if they |
2229 | * succeeded or failed because the ADISC completion | |
2230 | * routine guarantees to call the state machine and | |
2231 | * the RPI is either unregistered (failed ADISC response) | |
2232 | * or the RPI is still valid and the node is marked | |
2233 | * mapped for a target. The exchanges should be in the | |
2234 | * correct state. This code is specific to SLI3. | |
2235 | */ | |
2236 | lpfc_issue_clear_la(phba, vport); | |
90160e01 JS |
2237 | lpfc_issue_reg_vpi(phba, vport); |
2238 | return; | |
2239 | } | |
2240 | /* | |
2241 | * For SLI2, we need to set port_state to READY | |
2242 | * and continue discovery. | |
2243 | */ | |
2244 | if (vport->port_state < LPFC_VPORT_READY) { | |
2245 | /* If we get here, there is nothing to ADISC */ | |
2246 | if (vport->port_type == LPFC_PHYSICAL_PORT) | |
2247 | lpfc_issue_clear_la(phba, vport); | |
2248 | if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) { | |
2249 | vport->num_disc_nodes = 0; | |
2250 | /* go thru NPR list, issue ELS PLOGIs */ | |
2251 | if (vport->fc_npr_cnt) | |
2252 | lpfc_els_disc_plogi(vport); | |
2253 | if (!vport->num_disc_nodes) { | |
2254 | spin_lock_irq(shost->host_lock); | |
2255 | vport->fc_flag &= ~FC_NDISC_ACTIVE; | |
2256 | spin_unlock_irq(shost->host_lock); | |
2257 | lpfc_can_disctmo(vport); | |
2258 | lpfc_end_rscn(vport); | |
2259 | } | |
2260 | } | |
2261 | vport->port_state = LPFC_VPORT_READY; | |
2262 | } else | |
2263 | lpfc_rscn_disc(vport); | |
2264 | } | |
2265 | ||
e59058c4 | 2266 | /** |
3621a710 | 2267 | * lpfc_more_adisc - Issue more adisc as needed |
e59058c4 JS |
2268 | * @vport: pointer to a host virtual N_Port data structure. |
2269 | * | |
2270 | * This routine determines whether there are more ndlps on a @vport | |
2271 | * node list need to have Address Discover (ADISC) issued. If so, it will | |
2272 | * invoke the lpfc_els_disc_adisc() routine to issue ADISC on the @vport's | |
2273 | * remaining nodes which need to have ADISC sent. | |
2274 | **/ | |
0ff10d46 | 2275 | void |
2e0fef85 | 2276 | lpfc_more_adisc(struct lpfc_vport *vport) |
dea3101e | 2277 | { |
2e0fef85 JS |
2278 | if (vport->num_disc_nodes) |
2279 | vport->num_disc_nodes--; | |
dea3101e | 2280 | /* Continue discovery with <num_disc_nodes> ADISCs to go */ |
e8b62011 JS |
2281 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
2282 | "0210 Continue discovery with %d ADISCs to go " | |
2283 | "Data: x%x x%x x%x\n", | |
2284 | vport->num_disc_nodes, vport->fc_adisc_cnt, | |
2285 | vport->fc_flag, vport->port_state); | |
dea3101e | 2286 | /* Check to see if there are more ADISCs to be sent */ |
2e0fef85 JS |
2287 | if (vport->fc_flag & FC_NLP_MORE) { |
2288 | lpfc_set_disctmo(vport); | |
2289 | /* go thru NPR nodes and issue any remaining ELS ADISCs */ | |
eb016566 | 2290 | lpfc_els_disc_adisc(vport); |
dea3101e | 2291 | } |
90160e01 JS |
2292 | if (!vport->num_disc_nodes) |
2293 | lpfc_adisc_done(vport); | |
dea3101e | 2294 | return; |
2295 | } | |
2296 | ||
e59058c4 | 2297 | /** |
3621a710 | 2298 | * lpfc_cmpl_els_adisc - Completion callback function for adisc |
e59058c4 JS |
2299 | * @phba: pointer to lpfc hba data structure. |
2300 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
2301 | * @rspiocb: pointer to lpfc response iocb data structure. | |
2302 | * | |
2303 | * This routine is the completion function for issuing the Address Discover | |
2304 | * (ADISC) command. It first checks to see whether link went down during | |
2305 | * the discovery process. If so, the node will be marked as node port | |
2306 | * recovery for issuing discover IOCB by the link attention handler and | |
2307 | * exit. Otherwise, the response status is checked. If error was reported | |
2308 | * in the response status, the ADISC command shall be retried by invoking | |
2309 | * the lpfc_els_retry() routine. Otherwise, if no error was reported in | |
2310 | * the response status, the state machine is invoked to set transition | |
2311 | * with respect to NLP_EVT_CMPL_ADISC event. | |
2312 | **/ | |
dea3101e | 2313 | static void |
2e0fef85 JS |
2314 | lpfc_cmpl_els_adisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
2315 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 2316 | { |
2e0fef85 JS |
2317 | struct lpfc_vport *vport = cmdiocb->vport; |
2318 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e | 2319 | IOCB_t *irsp; |
dea3101e | 2320 | struct lpfc_nodelist *ndlp; |
2e0fef85 | 2321 | int disc; |
dea3101e | 2322 | |
2323 | /* we pass cmdiocb to state machine which needs rspiocb as well */ | |
2324 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
2325 | ||
2326 | irsp = &(rspiocb->iocb); | |
2327 | ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
dea3101e | 2328 | |
858c9f6c JS |
2329 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2330 | "ADISC cmpl: status:x%x/x%x did:x%x", | |
2331 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
2332 | ndlp->nlp_DID); | |
2333 | ||
dea3101e | 2334 | /* Since ndlp can be freed in the disc state machine, note if this node |
2335 | * is being used during discovery. | |
2336 | */ | |
2e0fef85 | 2337 | spin_lock_irq(shost->host_lock); |
dea3101e | 2338 | disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC); |
c9f8735b | 2339 | ndlp->nlp_flag &= ~(NLP_ADISC_SND | NLP_NPR_2B_DISC); |
2e0fef85 | 2340 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2341 | /* ADISC completes to NPort <nlp_DID> */ |
e8b62011 JS |
2342 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
2343 | "0104 ADISC completes to NPort x%x " | |
2344 | "Data: x%x x%x x%x x%x x%x\n", | |
2345 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
2346 | irsp->ulpTimeout, disc, vport->num_disc_nodes); | |
dea3101e | 2347 | /* Check to see if link went down during discovery */ |
2e0fef85 JS |
2348 | if (lpfc_els_chk_latt(vport)) { |
2349 | spin_lock_irq(shost->host_lock); | |
dea3101e | 2350 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 | 2351 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2352 | goto out; |
2353 | } | |
2354 | ||
2355 | if (irsp->ulpStatus) { | |
2356 | /* Check for retry */ | |
2357 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { | |
2358 | /* ELS command is being retried */ | |
2359 | if (disc) { | |
2e0fef85 | 2360 | spin_lock_irq(shost->host_lock); |
dea3101e | 2361 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 JS |
2362 | spin_unlock_irq(shost->host_lock); |
2363 | lpfc_set_disctmo(vport); | |
dea3101e | 2364 | } |
2365 | goto out; | |
2366 | } | |
2367 | /* ADISC failed */ | |
e40a02c1 JS |
2368 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
2369 | "2755 ADISC failure DID:%06X Status:x%x/x%x\n", | |
2370 | ndlp->nlp_DID, irsp->ulpStatus, | |
2371 | irsp->un.ulpWord[4]); | |
dea3101e | 2372 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ |
e47c9093 | 2373 | if (!lpfc_error_lost_link(irsp)) |
2e0fef85 | 2374 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
858c9f6c | 2375 | NLP_EVT_CMPL_ADISC); |
e47c9093 | 2376 | } else |
dea3101e | 2377 | /* Good status, call state machine */ |
2e0fef85 | 2378 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
dea3101e | 2379 | NLP_EVT_CMPL_ADISC); |
dea3101e | 2380 | |
90160e01 JS |
2381 | /* Check to see if there are more ADISCs to be sent */ |
2382 | if (disc && vport->num_disc_nodes) | |
2e0fef85 | 2383 | lpfc_more_adisc(vport); |
dea3101e | 2384 | out: |
2385 | lpfc_els_free_iocb(phba, cmdiocb); | |
2386 | return; | |
2387 | } | |
2388 | ||
e59058c4 | 2389 | /** |
3621a710 | 2390 | * lpfc_issue_els_adisc - Issue an address discover iocb to an node on a vport |
e59058c4 JS |
2391 | * @vport: pointer to a virtual N_Port data structure. |
2392 | * @ndlp: pointer to a node-list data structure. | |
2393 | * @retry: number of retries to the command IOCB. | |
2394 | * | |
2395 | * This routine issues an Address Discover (ADISC) for an @ndlp on a | |
2396 | * @vport. It prepares the payload of the ADISC ELS command, updates the | |
2397 | * and states of the ndlp, and invokes the lpfc_sli_issue_iocb() routine | |
2398 | * to issue the ADISC ELS command. | |
2399 | * | |
2400 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
2401 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
2402 | * will be stored into the context1 field of the IOCB for the completion | |
2403 | * callback function to the ADISC ELS command. | |
2404 | * | |
2405 | * Return code | |
2406 | * 0 - successfully issued adisc | |
2407 | * 1 - failed to issue adisc | |
2408 | **/ | |
dea3101e | 2409 | int |
2e0fef85 | 2410 | lpfc_issue_els_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
dea3101e | 2411 | uint8_t retry) |
2412 | { | |
2e0fef85 JS |
2413 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
2414 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 2415 | ADISC *ap; |
2416 | IOCB_t *icmd; | |
2417 | struct lpfc_iocbq *elsiocb; | |
dea3101e | 2418 | uint8_t *pcmd; |
2419 | uint16_t cmdsize; | |
2420 | ||
92d7f7b0 | 2421 | cmdsize = (sizeof(uint32_t) + sizeof(ADISC)); |
2e0fef85 JS |
2422 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
2423 | ndlp->nlp_DID, ELS_CMD_ADISC); | |
488d1469 | 2424 | if (!elsiocb) |
c9f8735b | 2425 | return 1; |
dea3101e | 2426 | |
2427 | icmd = &elsiocb->iocb; | |
2428 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
2429 | ||
2430 | /* For ADISC request, remainder of payload is service parameters */ | |
2431 | *((uint32_t *) (pcmd)) = ELS_CMD_ADISC; | |
92d7f7b0 | 2432 | pcmd += sizeof(uint32_t); |
dea3101e | 2433 | |
2434 | /* Fill in ADISC payload */ | |
2435 | ap = (ADISC *) pcmd; | |
2436 | ap->hardAL_PA = phba->fc_pref_ALPA; | |
92d7f7b0 JS |
2437 | memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name)); |
2438 | memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
2e0fef85 | 2439 | ap->DID = be32_to_cpu(vport->fc_myDID); |
dea3101e | 2440 | |
858c9f6c JS |
2441 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2442 | "Issue ADISC: did:x%x", | |
2443 | ndlp->nlp_DID, 0, 0); | |
2444 | ||
dea3101e | 2445 | phba->fc_stat.elsXmitADISC++; |
2446 | elsiocb->iocb_cmpl = lpfc_cmpl_els_adisc; | |
2e0fef85 | 2447 | spin_lock_irq(shost->host_lock); |
dea3101e | 2448 | ndlp->nlp_flag |= NLP_ADISC_SND; |
2e0fef85 | 2449 | spin_unlock_irq(shost->host_lock); |
3772a991 JS |
2450 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
2451 | IOCB_ERROR) { | |
2e0fef85 | 2452 | spin_lock_irq(shost->host_lock); |
dea3101e | 2453 | ndlp->nlp_flag &= ~NLP_ADISC_SND; |
2e0fef85 | 2454 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2455 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 2456 | return 1; |
dea3101e | 2457 | } |
c9f8735b | 2458 | return 0; |
dea3101e | 2459 | } |
2460 | ||
e59058c4 | 2461 | /** |
3621a710 | 2462 | * lpfc_cmpl_els_logo - Completion callback function for logo |
e59058c4 JS |
2463 | * @phba: pointer to lpfc hba data structure. |
2464 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
2465 | * @rspiocb: pointer to lpfc response iocb data structure. | |
2466 | * | |
2467 | * This routine is the completion function for issuing the ELS Logout (LOGO) | |
2468 | * command. If no error status was reported from the LOGO response, the | |
2469 | * state machine of the associated ndlp shall be invoked for transition with | |
2470 | * respect to NLP_EVT_CMPL_LOGO event. Otherwise, if error status was reported, | |
2471 | * the lpfc_els_retry() routine will be invoked to retry the LOGO command. | |
2472 | **/ | |
dea3101e | 2473 | static void |
2e0fef85 JS |
2474 | lpfc_cmpl_els_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
2475 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 2476 | { |
2e0fef85 JS |
2477 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; |
2478 | struct lpfc_vport *vport = ndlp->vport; | |
2479 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e | 2480 | IOCB_t *irsp; |
2481 | struct lpfc_sli *psli; | |
92494144 | 2482 | struct lpfcMboxq *mbox; |
086a345f JS |
2483 | unsigned long flags; |
2484 | uint32_t skip_recovery = 0; | |
dea3101e | 2485 | |
2486 | psli = &phba->sli; | |
2487 | /* we pass cmdiocb to state machine which needs rspiocb as well */ | |
2488 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
2489 | ||
2490 | irsp = &(rspiocb->iocb); | |
2e0fef85 | 2491 | spin_lock_irq(shost->host_lock); |
dea3101e | 2492 | ndlp->nlp_flag &= ~NLP_LOGO_SND; |
2e0fef85 | 2493 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2494 | |
858c9f6c JS |
2495 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2496 | "LOGO cmpl: status:x%x/x%x did:x%x", | |
2497 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
2498 | ndlp->nlp_DID); | |
086a345f | 2499 | |
dea3101e | 2500 | /* LOGO completes to NPort <nlp_DID> */ |
e8b62011 JS |
2501 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
2502 | "0105 LOGO completes to NPort x%x " | |
2503 | "Data: x%x x%x x%x x%x\n", | |
2504 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
2505 | irsp->ulpTimeout, vport->num_disc_nodes); | |
086a345f JS |
2506 | |
2507 | if (lpfc_els_chk_latt(vport)) { | |
2508 | skip_recovery = 1; | |
dea3101e | 2509 | goto out; |
086a345f | 2510 | } |
dea3101e | 2511 | |
086a345f | 2512 | /* Check to see if link went down during discovery */ |
92d7f7b0 JS |
2513 | if (ndlp->nlp_flag & NLP_TARGET_REMOVE) { |
2514 | /* NLP_EVT_DEVICE_RM should unregister the RPI | |
2515 | * which should abort all outstanding IOs. | |
2516 | */ | |
2517 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, | |
2518 | NLP_EVT_DEVICE_RM); | |
086a345f | 2519 | skip_recovery = 1; |
92d7f7b0 JS |
2520 | goto out; |
2521 | } | |
2522 | ||
dea3101e | 2523 | if (irsp->ulpStatus) { |
2524 | /* Check for retry */ | |
086a345f | 2525 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { |
dea3101e | 2526 | /* ELS command is being retried */ |
086a345f | 2527 | skip_recovery = 1; |
dea3101e | 2528 | goto out; |
086a345f | 2529 | } |
dea3101e | 2530 | /* LOGO failed */ |
e40a02c1 JS |
2531 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
2532 | "2756 LOGO failure DID:%06X Status:x%x/x%x\n", | |
2533 | ndlp->nlp_DID, irsp->ulpStatus, | |
2534 | irsp->un.ulpWord[4]); | |
dea3101e | 2535 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ |
086a345f JS |
2536 | if (lpfc_error_lost_link(irsp)) { |
2537 | skip_recovery = 1; | |
dea3101e | 2538 | goto out; |
086a345f JS |
2539 | } |
2540 | } | |
2541 | ||
2542 | /* Call state machine. This will unregister the rpi if needed. */ | |
2543 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, NLP_EVT_CMPL_LOGO); | |
2544 | ||
dea3101e | 2545 | out: |
2546 | lpfc_els_free_iocb(phba, cmdiocb); | |
92494144 JS |
2547 | /* If we are in pt2pt mode, we could rcv new S_ID on PLOGI */ |
2548 | if ((vport->fc_flag & FC_PT2PT) && | |
2549 | !(vport->fc_flag & FC_PT2PT_PLOGI)) { | |
2550 | phba->pport->fc_myDID = 0; | |
2551 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
2552 | if (mbox) { | |
2553 | lpfc_config_link(phba, mbox); | |
2554 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
2555 | mbox->vport = vport; | |
2556 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) == | |
2557 | MBX_NOT_FINISHED) { | |
2558 | mempool_free(mbox, phba->mbox_mem_pool); | |
086a345f | 2559 | skip_recovery = 1; |
92494144 JS |
2560 | } |
2561 | } | |
2562 | } | |
086a345f JS |
2563 | |
2564 | /* | |
2565 | * If the node is a target, the handling attempts to recover the port. | |
2566 | * For any other port type, the rpi is unregistered as an implicit | |
2567 | * LOGO. | |
2568 | */ | |
2569 | if ((ndlp->nlp_type & NLP_FCP_TARGET) && (skip_recovery == 0)) { | |
2570 | lpfc_cancel_retry_delay_tmo(vport, ndlp); | |
2571 | spin_lock_irqsave(shost->host_lock, flags); | |
2572 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; | |
2573 | spin_unlock_irqrestore(shost->host_lock, flags); | |
2574 | ||
2575 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
2576 | "3187 LOGO completes to NPort x%x: Start " | |
2577 | "Recovery Data: x%x x%x x%x x%x\n", | |
2578 | ndlp->nlp_DID, irsp->ulpStatus, | |
2579 | irsp->un.ulpWord[4], irsp->ulpTimeout, | |
2580 | vport->num_disc_nodes); | |
2581 | lpfc_disc_start(vport); | |
2582 | } | |
dea3101e | 2583 | return; |
2584 | } | |
2585 | ||
e59058c4 | 2586 | /** |
3621a710 | 2587 | * lpfc_issue_els_logo - Issue a logo to an node on a vport |
e59058c4 JS |
2588 | * @vport: pointer to a virtual N_Port data structure. |
2589 | * @ndlp: pointer to a node-list data structure. | |
2590 | * @retry: number of retries to the command IOCB. | |
2591 | * | |
2592 | * This routine constructs and issues an ELS Logout (LOGO) iocb command | |
2593 | * to a remote node, referred by an @ndlp on a @vport. It constructs the | |
2594 | * payload of the IOCB, properly sets up the @ndlp state, and invokes the | |
2595 | * lpfc_sli_issue_iocb() routine to send out the LOGO ELS command. | |
2596 | * | |
2597 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
2598 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
2599 | * will be stored into the context1 field of the IOCB for the completion | |
2600 | * callback function to the LOGO ELS command. | |
2601 | * | |
2602 | * Return code | |
2603 | * 0 - successfully issued logo | |
2604 | * 1 - failed to issue logo | |
2605 | **/ | |
dea3101e | 2606 | int |
2e0fef85 | 2607 | lpfc_issue_els_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
dea3101e | 2608 | uint8_t retry) |
2609 | { | |
2e0fef85 JS |
2610 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
2611 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 2612 | IOCB_t *icmd; |
2613 | struct lpfc_iocbq *elsiocb; | |
dea3101e | 2614 | uint8_t *pcmd; |
2615 | uint16_t cmdsize; | |
92d7f7b0 | 2616 | int rc; |
dea3101e | 2617 | |
98c9ea5c JS |
2618 | spin_lock_irq(shost->host_lock); |
2619 | if (ndlp->nlp_flag & NLP_LOGO_SND) { | |
2620 | spin_unlock_irq(shost->host_lock); | |
2621 | return 0; | |
2622 | } | |
2623 | spin_unlock_irq(shost->host_lock); | |
2624 | ||
92d7f7b0 | 2625 | cmdsize = (2 * sizeof(uint32_t)) + sizeof(struct lpfc_name); |
2e0fef85 JS |
2626 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
2627 | ndlp->nlp_DID, ELS_CMD_LOGO); | |
488d1469 | 2628 | if (!elsiocb) |
c9f8735b | 2629 | return 1; |
dea3101e | 2630 | |
2631 | icmd = &elsiocb->iocb; | |
2632 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
2633 | *((uint32_t *) (pcmd)) = ELS_CMD_LOGO; | |
92d7f7b0 | 2634 | pcmd += sizeof(uint32_t); |
dea3101e | 2635 | |
2636 | /* Fill in LOGO payload */ | |
2e0fef85 | 2637 | *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID); |
92d7f7b0 JS |
2638 | pcmd += sizeof(uint32_t); |
2639 | memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name)); | |
dea3101e | 2640 | |
858c9f6c JS |
2641 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2642 | "Issue LOGO: did:x%x", | |
2643 | ndlp->nlp_DID, 0, 0); | |
2644 | ||
086a345f JS |
2645 | /* |
2646 | * If we are issuing a LOGO, we may try to recover the remote NPort | |
2647 | * by issuing a PLOGI later. Even though we issue ELS cmds by the | |
2648 | * VPI, if we have a valid RPI, and that RPI gets unreg'ed while | |
2649 | * that ELS command is in-flight, the HBA returns a IOERR_INVALID_RPI | |
2650 | * for that ELS cmd. To avoid this situation, lets get rid of the | |
2651 | * RPI right now, before any ELS cmds are sent. | |
2652 | */ | |
2653 | spin_lock_irq(shost->host_lock); | |
2654 | ndlp->nlp_flag |= NLP_ISSUE_LOGO; | |
2655 | spin_unlock_irq(shost->host_lock); | |
2656 | if (lpfc_unreg_rpi(vport, ndlp)) { | |
2657 | lpfc_els_free_iocb(phba, elsiocb); | |
2658 | return 0; | |
2659 | } | |
2660 | ||
dea3101e | 2661 | phba->fc_stat.elsXmitLOGO++; |
2662 | elsiocb->iocb_cmpl = lpfc_cmpl_els_logo; | |
2e0fef85 | 2663 | spin_lock_irq(shost->host_lock); |
dea3101e | 2664 | ndlp->nlp_flag |= NLP_LOGO_SND; |
086a345f | 2665 | ndlp->nlp_flag &= ~NLP_ISSUE_LOGO; |
2e0fef85 | 2666 | spin_unlock_irq(shost->host_lock); |
3772a991 | 2667 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
92d7f7b0 JS |
2668 | |
2669 | if (rc == IOCB_ERROR) { | |
2e0fef85 | 2670 | spin_lock_irq(shost->host_lock); |
dea3101e | 2671 | ndlp->nlp_flag &= ~NLP_LOGO_SND; |
2e0fef85 | 2672 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2673 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 2674 | return 1; |
dea3101e | 2675 | } |
c9f8735b | 2676 | return 0; |
dea3101e | 2677 | } |
2678 | ||
e59058c4 | 2679 | /** |
3621a710 | 2680 | * lpfc_cmpl_els_cmd - Completion callback function for generic els command |
e59058c4 JS |
2681 | * @phba: pointer to lpfc hba data structure. |
2682 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
2683 | * @rspiocb: pointer to lpfc response iocb data structure. | |
2684 | * | |
2685 | * This routine is a generic completion callback function for ELS commands. | |
2686 | * Specifically, it is the callback function which does not need to perform | |
2687 | * any command specific operations. It is currently used by the ELS command | |
2688 | * issuing routines for the ELS State Change Request (SCR), | |
2689 | * lpfc_issue_els_scr(), and the ELS Fibre Channel Address Resolution | |
2690 | * Protocol Response (FARPR) routine, lpfc_issue_els_farpr(). Other than | |
2691 | * certain debug loggings, this callback function simply invokes the | |
2692 | * lpfc_els_chk_latt() routine to check whether link went down during the | |
2693 | * discovery process. | |
2694 | **/ | |
dea3101e | 2695 | static void |
2e0fef85 JS |
2696 | lpfc_cmpl_els_cmd(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
2697 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 2698 | { |
2e0fef85 | 2699 | struct lpfc_vport *vport = cmdiocb->vport; |
dea3101e | 2700 | IOCB_t *irsp; |
2701 | ||
2702 | irsp = &rspiocb->iocb; | |
2703 | ||
858c9f6c JS |
2704 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2705 | "ELS cmd cmpl: status:x%x/x%x did:x%x", | |
2706 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
2707 | irsp->un.elsreq64.remoteID); | |
dea3101e | 2708 | /* ELS cmd tag <ulpIoTag> completes */ |
e8b62011 JS |
2709 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
2710 | "0106 ELS cmd tag x%x completes Data: x%x x%x x%x\n", | |
2711 | irsp->ulpIoTag, irsp->ulpStatus, | |
2712 | irsp->un.ulpWord[4], irsp->ulpTimeout); | |
dea3101e | 2713 | /* Check to see if link went down during discovery */ |
2e0fef85 | 2714 | lpfc_els_chk_latt(vport); |
dea3101e | 2715 | lpfc_els_free_iocb(phba, cmdiocb); |
2716 | return; | |
2717 | } | |
2718 | ||
e59058c4 | 2719 | /** |
3621a710 | 2720 | * lpfc_issue_els_scr - Issue a scr to an node on a vport |
e59058c4 JS |
2721 | * @vport: pointer to a host virtual N_Port data structure. |
2722 | * @nportid: N_Port identifier to the remote node. | |
2723 | * @retry: number of retries to the command IOCB. | |
2724 | * | |
2725 | * This routine issues a State Change Request (SCR) to a fabric node | |
2726 | * on a @vport. The remote node @nportid is passed into the function. It | |
2727 | * first search the @vport node list to find the matching ndlp. If no such | |
2728 | * ndlp is found, a new ndlp shall be created for this (SCR) purpose. An | |
2729 | * IOCB is allocated, payload prepared, and the lpfc_sli_issue_iocb() | |
2730 | * routine is invoked to send the SCR IOCB. | |
2731 | * | |
2732 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
2733 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
2734 | * will be stored into the context1 field of the IOCB for the completion | |
2735 | * callback function to the SCR ELS command. | |
2736 | * | |
2737 | * Return code | |
2738 | * 0 - Successfully issued scr command | |
2739 | * 1 - Failed to issue scr command | |
2740 | **/ | |
dea3101e | 2741 | int |
2e0fef85 | 2742 | lpfc_issue_els_scr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry) |
dea3101e | 2743 | { |
2e0fef85 | 2744 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 2745 | IOCB_t *icmd; |
2746 | struct lpfc_iocbq *elsiocb; | |
dea3101e | 2747 | struct lpfc_sli *psli; |
2748 | uint8_t *pcmd; | |
2749 | uint16_t cmdsize; | |
2750 | struct lpfc_nodelist *ndlp; | |
2751 | ||
2752 | psli = &phba->sli; | |
92d7f7b0 | 2753 | cmdsize = (sizeof(uint32_t) + sizeof(SCR)); |
dea3101e | 2754 | |
e47c9093 JS |
2755 | ndlp = lpfc_findnode_did(vport, nportid); |
2756 | if (!ndlp) { | |
2757 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
2758 | if (!ndlp) | |
2759 | return 1; | |
2760 | lpfc_nlp_init(vport, ndlp, nportid); | |
2761 | lpfc_enqueue_node(vport, ndlp); | |
2762 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
2763 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
2764 | if (!ndlp) | |
2765 | return 1; | |
2766 | } | |
2e0fef85 JS |
2767 | |
2768 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, | |
2769 | ndlp->nlp_DID, ELS_CMD_SCR); | |
dea3101e | 2770 | |
488d1469 | 2771 | if (!elsiocb) { |
fa4066b6 JS |
2772 | /* This will trigger the release of the node just |
2773 | * allocated | |
2774 | */ | |
329f9bc7 | 2775 | lpfc_nlp_put(ndlp); |
c9f8735b | 2776 | return 1; |
dea3101e | 2777 | } |
2778 | ||
2779 | icmd = &elsiocb->iocb; | |
2780 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
2781 | ||
2782 | *((uint32_t *) (pcmd)) = ELS_CMD_SCR; | |
92d7f7b0 | 2783 | pcmd += sizeof(uint32_t); |
dea3101e | 2784 | |
2785 | /* For SCR, remainder of payload is SCR parameter page */ | |
92d7f7b0 | 2786 | memset(pcmd, 0, sizeof(SCR)); |
dea3101e | 2787 | ((SCR *) pcmd)->Function = SCR_FUNC_FULL; |
2788 | ||
858c9f6c JS |
2789 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2790 | "Issue SCR: did:x%x", | |
2791 | ndlp->nlp_DID, 0, 0); | |
2792 | ||
dea3101e | 2793 | phba->fc_stat.elsXmitSCR++; |
2794 | elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd; | |
3772a991 JS |
2795 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
2796 | IOCB_ERROR) { | |
fa4066b6 JS |
2797 | /* The additional lpfc_nlp_put will cause the following |
2798 | * lpfc_els_free_iocb routine to trigger the rlease of | |
2799 | * the node. | |
2800 | */ | |
329f9bc7 | 2801 | lpfc_nlp_put(ndlp); |
dea3101e | 2802 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 2803 | return 1; |
dea3101e | 2804 | } |
fa4066b6 JS |
2805 | /* This will cause the callback-function lpfc_cmpl_els_cmd to |
2806 | * trigger the release of node. | |
2807 | */ | |
cff261f6 | 2808 | |
329f9bc7 | 2809 | lpfc_nlp_put(ndlp); |
c9f8735b | 2810 | return 0; |
dea3101e | 2811 | } |
2812 | ||
e59058c4 | 2813 | /** |
3621a710 | 2814 | * lpfc_issue_els_farpr - Issue a farp to an node on a vport |
e59058c4 JS |
2815 | * @vport: pointer to a host virtual N_Port data structure. |
2816 | * @nportid: N_Port identifier to the remote node. | |
2817 | * @retry: number of retries to the command IOCB. | |
2818 | * | |
2819 | * This routine issues a Fibre Channel Address Resolution Response | |
2820 | * (FARPR) to a node on a vport. The remote node N_Port identifier (@nportid) | |
2821 | * is passed into the function. It first search the @vport node list to find | |
2822 | * the matching ndlp. If no such ndlp is found, a new ndlp shall be created | |
2823 | * for this (FARPR) purpose. An IOCB is allocated, payload prepared, and the | |
2824 | * lpfc_sli_issue_iocb() routine is invoked to send the FARPR ELS command. | |
2825 | * | |
2826 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
2827 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
2828 | * will be stored into the context1 field of the IOCB for the completion | |
2829 | * callback function to the PARPR ELS command. | |
2830 | * | |
2831 | * Return code | |
2832 | * 0 - Successfully issued farpr command | |
2833 | * 1 - Failed to issue farpr command | |
2834 | **/ | |
dea3101e | 2835 | static int |
2e0fef85 | 2836 | lpfc_issue_els_farpr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry) |
dea3101e | 2837 | { |
2e0fef85 | 2838 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 2839 | IOCB_t *icmd; |
2840 | struct lpfc_iocbq *elsiocb; | |
dea3101e | 2841 | struct lpfc_sli *psli; |
2842 | FARP *fp; | |
2843 | uint8_t *pcmd; | |
2844 | uint32_t *lp; | |
2845 | uint16_t cmdsize; | |
2846 | struct lpfc_nodelist *ondlp; | |
2847 | struct lpfc_nodelist *ndlp; | |
2848 | ||
2849 | psli = &phba->sli; | |
92d7f7b0 | 2850 | cmdsize = (sizeof(uint32_t) + sizeof(FARP)); |
dea3101e | 2851 | |
e47c9093 JS |
2852 | ndlp = lpfc_findnode_did(vport, nportid); |
2853 | if (!ndlp) { | |
2854 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
2855 | if (!ndlp) | |
2856 | return 1; | |
2857 | lpfc_nlp_init(vport, ndlp, nportid); | |
2858 | lpfc_enqueue_node(vport, ndlp); | |
2859 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
2860 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
2861 | if (!ndlp) | |
2862 | return 1; | |
2863 | } | |
2e0fef85 JS |
2864 | |
2865 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, | |
2866 | ndlp->nlp_DID, ELS_CMD_RNID); | |
488d1469 | 2867 | if (!elsiocb) { |
fa4066b6 JS |
2868 | /* This will trigger the release of the node just |
2869 | * allocated | |
2870 | */ | |
329f9bc7 | 2871 | lpfc_nlp_put(ndlp); |
c9f8735b | 2872 | return 1; |
dea3101e | 2873 | } |
2874 | ||
2875 | icmd = &elsiocb->iocb; | |
2876 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
2877 | ||
2878 | *((uint32_t *) (pcmd)) = ELS_CMD_FARPR; | |
92d7f7b0 | 2879 | pcmd += sizeof(uint32_t); |
dea3101e | 2880 | |
2881 | /* Fill in FARPR payload */ | |
2882 | fp = (FARP *) (pcmd); | |
92d7f7b0 | 2883 | memset(fp, 0, sizeof(FARP)); |
dea3101e | 2884 | lp = (uint32_t *) pcmd; |
2885 | *lp++ = be32_to_cpu(nportid); | |
2e0fef85 | 2886 | *lp++ = be32_to_cpu(vport->fc_myDID); |
dea3101e | 2887 | fp->Rflags = 0; |
2888 | fp->Mflags = (FARP_MATCH_PORT | FARP_MATCH_NODE); | |
2889 | ||
92d7f7b0 JS |
2890 | memcpy(&fp->RportName, &vport->fc_portname, sizeof(struct lpfc_name)); |
2891 | memcpy(&fp->RnodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
2e0fef85 | 2892 | ondlp = lpfc_findnode_did(vport, nportid); |
e47c9093 | 2893 | if (ondlp && NLP_CHK_NODE_ACT(ondlp)) { |
dea3101e | 2894 | memcpy(&fp->OportName, &ondlp->nlp_portname, |
92d7f7b0 | 2895 | sizeof(struct lpfc_name)); |
dea3101e | 2896 | memcpy(&fp->OnodeName, &ondlp->nlp_nodename, |
92d7f7b0 | 2897 | sizeof(struct lpfc_name)); |
dea3101e | 2898 | } |
2899 | ||
858c9f6c JS |
2900 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2901 | "Issue FARPR: did:x%x", | |
2902 | ndlp->nlp_DID, 0, 0); | |
2903 | ||
dea3101e | 2904 | phba->fc_stat.elsXmitFARPR++; |
2905 | elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd; | |
3772a991 JS |
2906 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
2907 | IOCB_ERROR) { | |
fa4066b6 JS |
2908 | /* The additional lpfc_nlp_put will cause the following |
2909 | * lpfc_els_free_iocb routine to trigger the release of | |
2910 | * the node. | |
2911 | */ | |
329f9bc7 | 2912 | lpfc_nlp_put(ndlp); |
dea3101e | 2913 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 2914 | return 1; |
dea3101e | 2915 | } |
fa4066b6 JS |
2916 | /* This will cause the callback-function lpfc_cmpl_els_cmd to |
2917 | * trigger the release of the node. | |
2918 | */ | |
329f9bc7 | 2919 | lpfc_nlp_put(ndlp); |
c9f8735b | 2920 | return 0; |
dea3101e | 2921 | } |
2922 | ||
e59058c4 | 2923 | /** |
3621a710 | 2924 | * lpfc_cancel_retry_delay_tmo - Cancel the timer with delayed iocb-cmd retry |
e59058c4 JS |
2925 | * @vport: pointer to a host virtual N_Port data structure. |
2926 | * @nlp: pointer to a node-list data structure. | |
2927 | * | |
2928 | * This routine cancels the timer with a delayed IOCB-command retry for | |
2929 | * a @vport's @ndlp. It stops the timer for the delayed function retrial and | |
2930 | * removes the ELS retry event if it presents. In addition, if the | |
2931 | * NLP_NPR_2B_DISC bit is set in the @nlp's nlp_flag bitmap, ADISC IOCB | |
2932 | * commands are sent for the @vport's nodes that require issuing discovery | |
2933 | * ADISC. | |
2934 | **/ | |
fdcebe28 | 2935 | void |
2e0fef85 | 2936 | lpfc_cancel_retry_delay_tmo(struct lpfc_vport *vport, struct lpfc_nodelist *nlp) |
fdcebe28 | 2937 | { |
2e0fef85 | 2938 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
e47c9093 | 2939 | struct lpfc_work_evt *evtp; |
2e0fef85 | 2940 | |
0d2b6b83 JS |
2941 | if (!(nlp->nlp_flag & NLP_DELAY_TMO)) |
2942 | return; | |
2e0fef85 | 2943 | spin_lock_irq(shost->host_lock); |
fdcebe28 | 2944 | nlp->nlp_flag &= ~NLP_DELAY_TMO; |
2e0fef85 | 2945 | spin_unlock_irq(shost->host_lock); |
fdcebe28 JS |
2946 | del_timer_sync(&nlp->nlp_delayfunc); |
2947 | nlp->nlp_last_elscmd = 0; | |
e47c9093 | 2948 | if (!list_empty(&nlp->els_retry_evt.evt_listp)) { |
fdcebe28 | 2949 | list_del_init(&nlp->els_retry_evt.evt_listp); |
e47c9093 JS |
2950 | /* Decrement nlp reference count held for the delayed retry */ |
2951 | evtp = &nlp->els_retry_evt; | |
2952 | lpfc_nlp_put((struct lpfc_nodelist *)evtp->evt_arg1); | |
2953 | } | |
fdcebe28 | 2954 | if (nlp->nlp_flag & NLP_NPR_2B_DISC) { |
2e0fef85 | 2955 | spin_lock_irq(shost->host_lock); |
fdcebe28 | 2956 | nlp->nlp_flag &= ~NLP_NPR_2B_DISC; |
2e0fef85 JS |
2957 | spin_unlock_irq(shost->host_lock); |
2958 | if (vport->num_disc_nodes) { | |
0d2b6b83 JS |
2959 | if (vport->port_state < LPFC_VPORT_READY) { |
2960 | /* Check if there are more ADISCs to be sent */ | |
2961 | lpfc_more_adisc(vport); | |
0d2b6b83 JS |
2962 | } else { |
2963 | /* Check if there are more PLOGIs to be sent */ | |
2964 | lpfc_more_plogi(vport); | |
90160e01 JS |
2965 | if (vport->num_disc_nodes == 0) { |
2966 | spin_lock_irq(shost->host_lock); | |
2967 | vport->fc_flag &= ~FC_NDISC_ACTIVE; | |
2968 | spin_unlock_irq(shost->host_lock); | |
2969 | lpfc_can_disctmo(vport); | |
2970 | lpfc_end_rscn(vport); | |
2971 | } | |
fdcebe28 JS |
2972 | } |
2973 | } | |
2974 | } | |
2975 | return; | |
2976 | } | |
2977 | ||
e59058c4 | 2978 | /** |
3621a710 | 2979 | * lpfc_els_retry_delay - Timer function with a ndlp delayed function timer |
e59058c4 JS |
2980 | * @ptr: holder for the pointer to the timer function associated data (ndlp). |
2981 | * | |
2982 | * This routine is invoked by the ndlp delayed-function timer to check | |
2983 | * whether there is any pending ELS retry event(s) with the node. If not, it | |
2984 | * simply returns. Otherwise, if there is at least one ELS delayed event, it | |
2985 | * adds the delayed events to the HBA work list and invokes the | |
2986 | * lpfc_worker_wake_up() routine to wake up worker thread to process the | |
2987 | * event. Note that lpfc_nlp_get() is called before posting the event to | |
2988 | * the work list to hold reference count of ndlp so that it guarantees the | |
2989 | * reference to ndlp will still be available when the worker thread gets | |
2990 | * to the event associated with the ndlp. | |
2991 | **/ | |
dea3101e | 2992 | void |
2993 | lpfc_els_retry_delay(unsigned long ptr) | |
2994 | { | |
2e0fef85 JS |
2995 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) ptr; |
2996 | struct lpfc_vport *vport = ndlp->vport; | |
2e0fef85 | 2997 | struct lpfc_hba *phba = vport->phba; |
92d7f7b0 | 2998 | unsigned long flags; |
2e0fef85 | 2999 | struct lpfc_work_evt *evtp = &ndlp->els_retry_evt; |
dea3101e | 3000 | |
92d7f7b0 | 3001 | spin_lock_irqsave(&phba->hbalock, flags); |
dea3101e | 3002 | if (!list_empty(&evtp->evt_listp)) { |
92d7f7b0 | 3003 | spin_unlock_irqrestore(&phba->hbalock, flags); |
dea3101e | 3004 | return; |
3005 | } | |
3006 | ||
fa4066b6 JS |
3007 | /* We need to hold the node by incrementing the reference |
3008 | * count until the queued work is done | |
3009 | */ | |
3010 | evtp->evt_arg1 = lpfc_nlp_get(ndlp); | |
5e9d9b82 JS |
3011 | if (evtp->evt_arg1) { |
3012 | evtp->evt = LPFC_EVT_ELS_RETRY; | |
3013 | list_add_tail(&evtp->evt_listp, &phba->work_list); | |
92d7f7b0 | 3014 | lpfc_worker_wake_up(phba); |
5e9d9b82 | 3015 | } |
92d7f7b0 | 3016 | spin_unlock_irqrestore(&phba->hbalock, flags); |
dea3101e | 3017 | return; |
3018 | } | |
3019 | ||
e59058c4 | 3020 | /** |
3621a710 | 3021 | * lpfc_els_retry_delay_handler - Work thread handler for ndlp delayed function |
e59058c4 JS |
3022 | * @ndlp: pointer to a node-list data structure. |
3023 | * | |
3024 | * This routine is the worker-thread handler for processing the @ndlp delayed | |
3025 | * event(s), posted by the lpfc_els_retry_delay() routine. It simply retrieves | |
3026 | * the last ELS command from the associated ndlp and invokes the proper ELS | |
3027 | * function according to the delayed ELS command to retry the command. | |
3028 | **/ | |
dea3101e | 3029 | void |
3030 | lpfc_els_retry_delay_handler(struct lpfc_nodelist *ndlp) | |
3031 | { | |
2e0fef85 JS |
3032 | struct lpfc_vport *vport = ndlp->vport; |
3033 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
eb016566 | 3034 | uint32_t cmd, retry; |
dea3101e | 3035 | |
2e0fef85 | 3036 | spin_lock_irq(shost->host_lock); |
5024ab17 JW |
3037 | cmd = ndlp->nlp_last_elscmd; |
3038 | ndlp->nlp_last_elscmd = 0; | |
dea3101e | 3039 | |
3040 | if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { | |
2e0fef85 | 3041 | spin_unlock_irq(shost->host_lock); |
dea3101e | 3042 | return; |
3043 | } | |
3044 | ||
3045 | ndlp->nlp_flag &= ~NLP_DELAY_TMO; | |
2e0fef85 | 3046 | spin_unlock_irq(shost->host_lock); |
1a169689 JS |
3047 | /* |
3048 | * If a discovery event readded nlp_delayfunc after timer | |
3049 | * firing and before processing the timer, cancel the | |
3050 | * nlp_delayfunc. | |
3051 | */ | |
3052 | del_timer_sync(&ndlp->nlp_delayfunc); | |
dea3101e | 3053 | retry = ndlp->nlp_retry; |
4d9ab994 | 3054 | ndlp->nlp_retry = 0; |
dea3101e | 3055 | |
3056 | switch (cmd) { | |
3057 | case ELS_CMD_FLOGI: | |
2e0fef85 | 3058 | lpfc_issue_els_flogi(vport, ndlp, retry); |
dea3101e | 3059 | break; |
3060 | case ELS_CMD_PLOGI: | |
2e0fef85 | 3061 | if (!lpfc_issue_els_plogi(vport, ndlp->nlp_DID, retry)) { |
5024ab17 | 3062 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 3063 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); |
6ad42535 | 3064 | } |
dea3101e | 3065 | break; |
3066 | case ELS_CMD_ADISC: | |
2e0fef85 | 3067 | if (!lpfc_issue_els_adisc(vport, ndlp, retry)) { |
5024ab17 | 3068 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 3069 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); |
6ad42535 | 3070 | } |
dea3101e | 3071 | break; |
3072 | case ELS_CMD_PRLI: | |
2e0fef85 | 3073 | if (!lpfc_issue_els_prli(vport, ndlp, retry)) { |
5024ab17 | 3074 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 3075 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); |
6ad42535 | 3076 | } |
dea3101e | 3077 | break; |
3078 | case ELS_CMD_LOGO: | |
2e0fef85 | 3079 | if (!lpfc_issue_els_logo(vport, ndlp, retry)) { |
5024ab17 | 3080 | ndlp->nlp_prev_state = ndlp->nlp_state; |
086a345f | 3081 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE); |
6ad42535 | 3082 | } |
dea3101e | 3083 | break; |
92d7f7b0 | 3084 | case ELS_CMD_FDISC: |
fedd3b7b JS |
3085 | if (!(vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI)) |
3086 | lpfc_issue_els_fdisc(vport, ndlp, retry); | |
92d7f7b0 | 3087 | break; |
dea3101e | 3088 | } |
3089 | return; | |
3090 | } | |
3091 | ||
e59058c4 | 3092 | /** |
3621a710 | 3093 | * lpfc_els_retry - Make retry decision on an els command iocb |
e59058c4 JS |
3094 | * @phba: pointer to lpfc hba data structure. |
3095 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
3096 | * @rspiocb: pointer to lpfc response iocb data structure. | |
3097 | * | |
3098 | * This routine makes a retry decision on an ELS command IOCB, which has | |
3099 | * failed. The following ELS IOCBs use this function for retrying the command | |
3100 | * when previously issued command responsed with error status: FLOGI, PLOGI, | |
3101 | * PRLI, ADISC, LOGO, and FDISC. Based on the ELS command type and the | |
3102 | * returned error status, it makes the decision whether a retry shall be | |
3103 | * issued for the command, and whether a retry shall be made immediately or | |
3104 | * delayed. In the former case, the corresponding ELS command issuing-function | |
3105 | * is called to retry the command. In the later case, the ELS command shall | |
3106 | * be posted to the ndlp delayed event and delayed function timer set to the | |
3107 | * ndlp for the delayed command issusing. | |
3108 | * | |
3109 | * Return code | |
3110 | * 0 - No retry of els command is made | |
3111 | * 1 - Immediate or delayed retry of els command is made | |
3112 | **/ | |
dea3101e | 3113 | static int |
2e0fef85 JS |
3114 | lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
3115 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 3116 | { |
2e0fef85 JS |
3117 | struct lpfc_vport *vport = cmdiocb->vport; |
3118 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
3119 | IOCB_t *irsp = &rspiocb->iocb; | |
3120 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
3121 | struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
dea3101e | 3122 | uint32_t *elscmd; |
3123 | struct ls_rjt stat; | |
2e0fef85 | 3124 | int retry = 0, maxretry = lpfc_max_els_tries, delay = 0; |
98c9ea5c | 3125 | int logerr = 0; |
2e0fef85 | 3126 | uint32_t cmd = 0; |
488d1469 | 3127 | uint32_t did; |
dea3101e | 3128 | |
488d1469 | 3129 | |
dea3101e | 3130 | /* Note: context2 may be 0 for internal driver abort |
3131 | * of delays ELS command. | |
3132 | */ | |
3133 | ||
3134 | if (pcmd && pcmd->virt) { | |
3135 | elscmd = (uint32_t *) (pcmd->virt); | |
3136 | cmd = *elscmd++; | |
3137 | } | |
3138 | ||
e47c9093 | 3139 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) |
488d1469 JS |
3140 | did = ndlp->nlp_DID; |
3141 | else { | |
3142 | /* We should only hit this case for retrying PLOGI */ | |
3143 | did = irsp->un.elsreq64.remoteID; | |
2e0fef85 | 3144 | ndlp = lpfc_findnode_did(vport, did); |
e47c9093 JS |
3145 | if ((!ndlp || !NLP_CHK_NODE_ACT(ndlp)) |
3146 | && (cmd != ELS_CMD_PLOGI)) | |
488d1469 JS |
3147 | return 1; |
3148 | } | |
3149 | ||
858c9f6c JS |
3150 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
3151 | "Retry ELS: wd7:x%x wd4:x%x did:x%x", | |
3152 | *(((uint32_t *) irsp) + 7), irsp->un.ulpWord[4], ndlp->nlp_DID); | |
3153 | ||
dea3101e | 3154 | switch (irsp->ulpStatus) { |
3155 | case IOSTAT_FCP_RSP_ERROR: | |
1151e3ec | 3156 | break; |
dea3101e | 3157 | case IOSTAT_REMOTE_STOP: |
1151e3ec JS |
3158 | if (phba->sli_rev == LPFC_SLI_REV4) { |
3159 | /* This IO was aborted by the target, we don't | |
3160 | * know the rxid and because we did not send the | |
3161 | * ABTS we cannot generate and RRQ. | |
3162 | */ | |
3163 | lpfc_set_rrq_active(phba, ndlp, | |
ee0f4fe1 | 3164 | cmdiocb->sli4_lxritag, 0, 0); |
1151e3ec | 3165 | } |
dea3101e | 3166 | break; |
dea3101e | 3167 | case IOSTAT_LOCAL_REJECT: |
e3d2b802 | 3168 | switch ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK)) { |
dea3101e | 3169 | case IOERR_LOOP_OPEN_FAILURE: |
eaf15d5b JS |
3170 | if (cmd == ELS_CMD_FLOGI) { |
3171 | if (PCI_DEVICE_ID_HORNET == | |
3172 | phba->pcidev->device) { | |
76a95d75 | 3173 | phba->fc_topology = LPFC_TOPOLOGY_LOOP; |
eaf15d5b JS |
3174 | phba->pport->fc_myDID = 0; |
3175 | phba->alpa_map[0] = 0; | |
3176 | phba->alpa_map[1] = 0; | |
3177 | } | |
3178 | } | |
2e0fef85 | 3179 | if (cmd == ELS_CMD_PLOGI && cmdiocb->retry == 0) |
92d7f7b0 | 3180 | delay = 1000; |
dea3101e | 3181 | retry = 1; |
3182 | break; | |
3183 | ||
92d7f7b0 | 3184 | case IOERR_ILLEGAL_COMMAND: |
7f5f3d0d JS |
3185 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
3186 | "0124 Retry illegal cmd x%x " | |
3187 | "retry:x%x delay:x%x\n", | |
3188 | cmd, cmdiocb->retry, delay); | |
3189 | retry = 1; | |
3190 | /* All command's retry policy */ | |
3191 | maxretry = 8; | |
3192 | if (cmdiocb->retry > 2) | |
3193 | delay = 1000; | |
92d7f7b0 JS |
3194 | break; |
3195 | ||
dea3101e | 3196 | case IOERR_NO_RESOURCES: |
98c9ea5c | 3197 | logerr = 1; /* HBA out of resources */ |
858c9f6c JS |
3198 | retry = 1; |
3199 | if (cmdiocb->retry > 100) | |
3200 | delay = 100; | |
3201 | maxretry = 250; | |
3202 | break; | |
3203 | ||
3204 | case IOERR_ILLEGAL_FRAME: | |
92d7f7b0 | 3205 | delay = 100; |
dea3101e | 3206 | retry = 1; |
3207 | break; | |
3208 | ||
858c9f6c | 3209 | case IOERR_SEQUENCE_TIMEOUT: |
dea3101e | 3210 | case IOERR_INVALID_RPI: |
5b5b36a9 JS |
3211 | if (cmd == ELS_CMD_PLOGI && |
3212 | did == NameServer_DID) { | |
3213 | /* Continue forever if plogi to */ | |
3214 | /* the nameserver fails */ | |
3215 | maxretry = 0; | |
3216 | delay = 100; | |
3217 | } | |
dea3101e | 3218 | retry = 1; |
3219 | break; | |
3220 | } | |
3221 | break; | |
3222 | ||
3223 | case IOSTAT_NPORT_RJT: | |
3224 | case IOSTAT_FABRIC_RJT: | |
3225 | if (irsp->un.ulpWord[4] & RJT_UNAVAIL_TEMP) { | |
3226 | retry = 1; | |
3227 | break; | |
3228 | } | |
3229 | break; | |
3230 | ||
3231 | case IOSTAT_NPORT_BSY: | |
3232 | case IOSTAT_FABRIC_BSY: | |
98c9ea5c | 3233 | logerr = 1; /* Fabric / Remote NPort out of resources */ |
dea3101e | 3234 | retry = 1; |
3235 | break; | |
3236 | ||
3237 | case IOSTAT_LS_RJT: | |
3238 | stat.un.lsRjtError = be32_to_cpu(irsp->un.ulpWord[4]); | |
3239 | /* Added for Vendor specifc support | |
3240 | * Just keep retrying for these Rsn / Exp codes | |
3241 | */ | |
3242 | switch (stat.un.b.lsRjtRsnCode) { | |
3243 | case LSRJT_UNABLE_TPC: | |
3244 | if (stat.un.b.lsRjtRsnCodeExp == | |
3245 | LSEXP_CMD_IN_PROGRESS) { | |
3246 | if (cmd == ELS_CMD_PLOGI) { | |
92d7f7b0 | 3247 | delay = 1000; |
dea3101e | 3248 | maxretry = 48; |
3249 | } | |
3250 | retry = 1; | |
3251 | break; | |
3252 | } | |
ffc95493 JS |
3253 | if (stat.un.b.lsRjtRsnCodeExp == |
3254 | LSEXP_CANT_GIVE_DATA) { | |
3255 | if (cmd == ELS_CMD_PLOGI) { | |
3256 | delay = 1000; | |
3257 | maxretry = 48; | |
3258 | } | |
3259 | retry = 1; | |
3260 | break; | |
3261 | } | |
4c1b64ba JS |
3262 | if ((cmd == ELS_CMD_PLOGI) || |
3263 | (cmd == ELS_CMD_PRLI)) { | |
92d7f7b0 | 3264 | delay = 1000; |
dea3101e | 3265 | maxretry = lpfc_max_els_tries + 1; |
3266 | retry = 1; | |
3267 | break; | |
3268 | } | |
92d7f7b0 JS |
3269 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && |
3270 | (cmd == ELS_CMD_FDISC) && | |
3271 | (stat.un.b.lsRjtRsnCodeExp == LSEXP_OUT_OF_RESOURCE)){ | |
e8b62011 JS |
3272 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
3273 | "0125 FDISC Failed (x%x). " | |
3274 | "Fabric out of resources\n", | |
3275 | stat.un.lsRjtError); | |
92d7f7b0 JS |
3276 | lpfc_vport_set_state(vport, |
3277 | FC_VPORT_NO_FABRIC_RSCS); | |
3278 | } | |
dea3101e | 3279 | break; |
3280 | ||
3281 | case LSRJT_LOGICAL_BSY: | |
858c9f6c JS |
3282 | if ((cmd == ELS_CMD_PLOGI) || |
3283 | (cmd == ELS_CMD_PRLI)) { | |
92d7f7b0 | 3284 | delay = 1000; |
dea3101e | 3285 | maxretry = 48; |
92d7f7b0 | 3286 | } else if (cmd == ELS_CMD_FDISC) { |
51ef4c26 JS |
3287 | /* FDISC retry policy */ |
3288 | maxretry = 48; | |
3289 | if (cmdiocb->retry >= 32) | |
3290 | delay = 1000; | |
dea3101e | 3291 | } |
3292 | retry = 1; | |
3293 | break; | |
92d7f7b0 JS |
3294 | |
3295 | case LSRJT_LOGICAL_ERR: | |
7f5f3d0d JS |
3296 | /* There are some cases where switches return this |
3297 | * error when they are not ready and should be returning | |
3298 | * Logical Busy. We should delay every time. | |
3299 | */ | |
3300 | if (cmd == ELS_CMD_FDISC && | |
3301 | stat.un.b.lsRjtRsnCodeExp == LSEXP_PORT_LOGIN_REQ) { | |
3302 | maxretry = 3; | |
3303 | delay = 1000; | |
3304 | retry = 1; | |
3305 | break; | |
3306 | } | |
92d7f7b0 JS |
3307 | case LSRJT_PROTOCOL_ERR: |
3308 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && | |
3309 | (cmd == ELS_CMD_FDISC) && | |
3310 | ((stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_PNAME) || | |
3311 | (stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_NPORT_ID)) | |
3312 | ) { | |
e8b62011 | 3313 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
d7c255b2 | 3314 | "0122 FDISC Failed (x%x). " |
e8b62011 JS |
3315 | "Fabric Detected Bad WWN\n", |
3316 | stat.un.lsRjtError); | |
92d7f7b0 JS |
3317 | lpfc_vport_set_state(vport, |
3318 | FC_VPORT_FABRIC_REJ_WWN); | |
3319 | } | |
3320 | break; | |
dea3101e | 3321 | } |
3322 | break; | |
3323 | ||
3324 | case IOSTAT_INTERMED_RSP: | |
3325 | case IOSTAT_BA_RJT: | |
3326 | break; | |
3327 | ||
3328 | default: | |
3329 | break; | |
3330 | } | |
3331 | ||
488d1469 | 3332 | if (did == FDMI_DID) |
dea3101e | 3333 | retry = 1; |
dea3101e | 3334 | |
df9e1b59 | 3335 | if ((cmd == ELS_CMD_FLOGI) && |
76a95d75 | 3336 | (phba->fc_topology != LPFC_TOPOLOGY_LOOP) && |
1b32f6aa | 3337 | !lpfc_error_lost_link(irsp)) { |
98c9ea5c JS |
3338 | /* FLOGI retry policy */ |
3339 | retry = 1; | |
df9e1b59 | 3340 | /* retry FLOGI forever */ |
6669f9bb JS |
3341 | maxretry = 0; |
3342 | if (cmdiocb->retry >= 100) | |
3343 | delay = 5000; | |
3344 | else if (cmdiocb->retry >= 32) | |
98c9ea5c | 3345 | delay = 1000; |
df9e1b59 JS |
3346 | } else if ((cmd == ELS_CMD_FDISC) && !lpfc_error_lost_link(irsp)) { |
3347 | /* retry FDISCs every second up to devloss */ | |
3348 | retry = 1; | |
3349 | maxretry = vport->cfg_devloss_tmo; | |
3350 | delay = 1000; | |
98c9ea5c JS |
3351 | } |
3352 | ||
6669f9bb JS |
3353 | cmdiocb->retry++; |
3354 | if (maxretry && (cmdiocb->retry >= maxretry)) { | |
dea3101e | 3355 | phba->fc_stat.elsRetryExceeded++; |
3356 | retry = 0; | |
3357 | } | |
3358 | ||
ed957684 JS |
3359 | if ((vport->load_flag & FC_UNLOADING) != 0) |
3360 | retry = 0; | |
3361 | ||
dea3101e | 3362 | if (retry) { |
38b92ef8 JS |
3363 | if ((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_FDISC)) { |
3364 | /* Stop retrying PLOGI and FDISC if in FCF discovery */ | |
3365 | if (phba->fcf.fcf_flag & FCF_DISCOVERY) { | |
3366 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
3367 | "2849 Stop retry ELS command " | |
3368 | "x%x to remote NPORT x%x, " | |
3369 | "Data: x%x x%x\n", cmd, did, | |
3370 | cmdiocb->retry, delay); | |
3371 | return 0; | |
3372 | } | |
3373 | } | |
dea3101e | 3374 | |
3375 | /* Retry ELS command <elsCmd> to remote NPORT <did> */ | |
e8b62011 JS |
3376 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3377 | "0107 Retry ELS command x%x to remote " | |
3378 | "NPORT x%x Data: x%x x%x\n", | |
3379 | cmd, did, cmdiocb->retry, delay); | |
dea3101e | 3380 | |
858c9f6c JS |
3381 | if (((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_ADISC)) && |
3382 | ((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) || | |
e3d2b802 JS |
3383 | ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) != |
3384 | IOERR_NO_RESOURCES))) { | |
858c9f6c JS |
3385 | /* Don't reset timer for no resources */ |
3386 | ||
dea3101e | 3387 | /* If discovery / RSCN timer is running, reset it */ |
2e0fef85 | 3388 | if (timer_pending(&vport->fc_disctmo) || |
92d7f7b0 | 3389 | (vport->fc_flag & FC_RSCN_MODE)) |
2e0fef85 | 3390 | lpfc_set_disctmo(vport); |
dea3101e | 3391 | } |
3392 | ||
3393 | phba->fc_stat.elsXmitRetry++; | |
58da1ffb | 3394 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && delay) { |
dea3101e | 3395 | phba->fc_stat.elsDelayRetry++; |
3396 | ndlp->nlp_retry = cmdiocb->retry; | |
3397 | ||
92d7f7b0 JS |
3398 | /* delay is specified in milliseconds */ |
3399 | mod_timer(&ndlp->nlp_delayfunc, | |
3400 | jiffies + msecs_to_jiffies(delay)); | |
2e0fef85 | 3401 | spin_lock_irq(shost->host_lock); |
dea3101e | 3402 | ndlp->nlp_flag |= NLP_DELAY_TMO; |
2e0fef85 | 3403 | spin_unlock_irq(shost->host_lock); |
dea3101e | 3404 | |
5024ab17 | 3405 | ndlp->nlp_prev_state = ndlp->nlp_state; |
858c9f6c JS |
3406 | if (cmd == ELS_CMD_PRLI) |
3407 | lpfc_nlp_set_state(vport, ndlp, | |
4c1b64ba | 3408 | NLP_STE_PRLI_ISSUE); |
858c9f6c JS |
3409 | else |
3410 | lpfc_nlp_set_state(vport, ndlp, | |
3411 | NLP_STE_NPR_NODE); | |
dea3101e | 3412 | ndlp->nlp_last_elscmd = cmd; |
3413 | ||
c9f8735b | 3414 | return 1; |
dea3101e | 3415 | } |
3416 | switch (cmd) { | |
3417 | case ELS_CMD_FLOGI: | |
2e0fef85 | 3418 | lpfc_issue_els_flogi(vport, ndlp, cmdiocb->retry); |
c9f8735b | 3419 | return 1; |
92d7f7b0 JS |
3420 | case ELS_CMD_FDISC: |
3421 | lpfc_issue_els_fdisc(vport, ndlp, cmdiocb->retry); | |
3422 | return 1; | |
dea3101e | 3423 | case ELS_CMD_PLOGI: |
58da1ffb | 3424 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) { |
488d1469 | 3425 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 3426 | lpfc_nlp_set_state(vport, ndlp, |
de0c5b32 | 3427 | NLP_STE_PLOGI_ISSUE); |
488d1469 | 3428 | } |
2e0fef85 | 3429 | lpfc_issue_els_plogi(vport, did, cmdiocb->retry); |
c9f8735b | 3430 | return 1; |
dea3101e | 3431 | case ELS_CMD_ADISC: |
5024ab17 | 3432 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 JS |
3433 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); |
3434 | lpfc_issue_els_adisc(vport, ndlp, cmdiocb->retry); | |
c9f8735b | 3435 | return 1; |
dea3101e | 3436 | case ELS_CMD_PRLI: |
5024ab17 | 3437 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 JS |
3438 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); |
3439 | lpfc_issue_els_prli(vport, ndlp, cmdiocb->retry); | |
c9f8735b | 3440 | return 1; |
dea3101e | 3441 | case ELS_CMD_LOGO: |
5024ab17 | 3442 | ndlp->nlp_prev_state = ndlp->nlp_state; |
086a345f | 3443 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE); |
2e0fef85 | 3444 | lpfc_issue_els_logo(vport, ndlp, cmdiocb->retry); |
c9f8735b | 3445 | return 1; |
dea3101e | 3446 | } |
3447 | } | |
dea3101e | 3448 | /* No retry ELS command <elsCmd> to remote NPORT <did> */ |
98c9ea5c JS |
3449 | if (logerr) { |
3450 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
3451 | "0137 No retry ELS command x%x to remote " | |
3452 | "NPORT x%x: Out of Resources: Error:x%x/%x\n", | |
3453 | cmd, did, irsp->ulpStatus, | |
3454 | irsp->un.ulpWord[4]); | |
3455 | } | |
3456 | else { | |
3457 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
a58cbd52 JS |
3458 | "0108 No retry ELS command x%x to remote " |
3459 | "NPORT x%x Retried:%d Error:x%x/%x\n", | |
3460 | cmd, did, cmdiocb->retry, irsp->ulpStatus, | |
3461 | irsp->un.ulpWord[4]); | |
98c9ea5c | 3462 | } |
c9f8735b | 3463 | return 0; |
dea3101e | 3464 | } |
3465 | ||
e59058c4 | 3466 | /** |
3621a710 | 3467 | * lpfc_els_free_data - Free lpfc dma buffer and data structure with an iocb |
e59058c4 JS |
3468 | * @phba: pointer to lpfc hba data structure. |
3469 | * @buf_ptr1: pointer to the lpfc DMA buffer data structure. | |
3470 | * | |
3471 | * This routine releases the lpfc DMA (Direct Memory Access) buffer(s) | |
3472 | * associated with a command IOCB back to the lpfc DMA buffer pool. It first | |
3473 | * checks to see whether there is a lpfc DMA buffer associated with the | |
3474 | * response of the command IOCB. If so, it will be released before releasing | |
3475 | * the lpfc DMA buffer associated with the IOCB itself. | |
3476 | * | |
3477 | * Return code | |
3478 | * 0 - Successfully released lpfc DMA buffer (currently, always return 0) | |
3479 | **/ | |
09372820 | 3480 | static int |
87af33fe JS |
3481 | lpfc_els_free_data(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr1) |
3482 | { | |
3483 | struct lpfc_dmabuf *buf_ptr; | |
3484 | ||
e59058c4 | 3485 | /* Free the response before processing the command. */ |
87af33fe JS |
3486 | if (!list_empty(&buf_ptr1->list)) { |
3487 | list_remove_head(&buf_ptr1->list, buf_ptr, | |
3488 | struct lpfc_dmabuf, | |
3489 | list); | |
3490 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); | |
3491 | kfree(buf_ptr); | |
3492 | } | |
3493 | lpfc_mbuf_free(phba, buf_ptr1->virt, buf_ptr1->phys); | |
3494 | kfree(buf_ptr1); | |
3495 | return 0; | |
3496 | } | |
3497 | ||
e59058c4 | 3498 | /** |
3621a710 | 3499 | * lpfc_els_free_bpl - Free lpfc dma buffer and data structure with bpl |
e59058c4 JS |
3500 | * @phba: pointer to lpfc hba data structure. |
3501 | * @buf_ptr: pointer to the lpfc dma buffer data structure. | |
3502 | * | |
3503 | * This routine releases the lpfc Direct Memory Access (DMA) buffer | |
3504 | * associated with a Buffer Pointer List (BPL) back to the lpfc DMA buffer | |
3505 | * pool. | |
3506 | * | |
3507 | * Return code | |
3508 | * 0 - Successfully released lpfc DMA buffer (currently, always return 0) | |
3509 | **/ | |
09372820 | 3510 | static int |
87af33fe JS |
3511 | lpfc_els_free_bpl(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr) |
3512 | { | |
3513 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); | |
3514 | kfree(buf_ptr); | |
3515 | return 0; | |
3516 | } | |
3517 | ||
e59058c4 | 3518 | /** |
3621a710 | 3519 | * lpfc_els_free_iocb - Free a command iocb and its associated resources |
e59058c4 JS |
3520 | * @phba: pointer to lpfc hba data structure. |
3521 | * @elsiocb: pointer to lpfc els command iocb data structure. | |
3522 | * | |
3523 | * This routine frees a command IOCB and its associated resources. The | |
3524 | * command IOCB data structure contains the reference to various associated | |
3525 | * resources, these fields must be set to NULL if the associated reference | |
3526 | * not present: | |
3527 | * context1 - reference to ndlp | |
3528 | * context2 - reference to cmd | |
3529 | * context2->next - reference to rsp | |
3530 | * context3 - reference to bpl | |
3531 | * | |
3532 | * It first properly decrements the reference count held on ndlp for the | |
3533 | * IOCB completion callback function. If LPFC_DELAY_MEM_FREE flag is not | |
3534 | * set, it invokes the lpfc_els_free_data() routine to release the Direct | |
3535 | * Memory Access (DMA) buffers associated with the IOCB. Otherwise, it | |
3536 | * adds the DMA buffer the @phba data structure for the delayed release. | |
3537 | * If reference to the Buffer Pointer List (BPL) is present, the | |
3538 | * lpfc_els_free_bpl() routine is invoked to release the DMA memory | |
3539 | * associated with BPL. Finally, the lpfc_sli_release_iocbq() routine is | |
3540 | * invoked to release the IOCB data structure back to @phba IOCBQ list. | |
3541 | * | |
3542 | * Return code | |
3543 | * 0 - Success (currently, always return 0) | |
3544 | **/ | |
dea3101e | 3545 | int |
329f9bc7 | 3546 | lpfc_els_free_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *elsiocb) |
dea3101e | 3547 | { |
3548 | struct lpfc_dmabuf *buf_ptr, *buf_ptr1; | |
a8adb832 JS |
3549 | struct lpfc_nodelist *ndlp; |
3550 | ||
3551 | ndlp = (struct lpfc_nodelist *)elsiocb->context1; | |
3552 | if (ndlp) { | |
3553 | if (ndlp->nlp_flag & NLP_DEFER_RM) { | |
3554 | lpfc_nlp_put(ndlp); | |
dea3101e | 3555 | |
a8adb832 JS |
3556 | /* If the ndlp is not being used by another discovery |
3557 | * thread, free it. | |
3558 | */ | |
3559 | if (!lpfc_nlp_not_used(ndlp)) { | |
3560 | /* If ndlp is being used by another discovery | |
3561 | * thread, just clear NLP_DEFER_RM | |
3562 | */ | |
3563 | ndlp->nlp_flag &= ~NLP_DEFER_RM; | |
3564 | } | |
3565 | } | |
3566 | else | |
3567 | lpfc_nlp_put(ndlp); | |
329f9bc7 JS |
3568 | elsiocb->context1 = NULL; |
3569 | } | |
dea3101e | 3570 | /* context2 = cmd, context2->next = rsp, context3 = bpl */ |
3571 | if (elsiocb->context2) { | |
0ff10d46 JS |
3572 | if (elsiocb->iocb_flag & LPFC_DELAY_MEM_FREE) { |
3573 | /* Firmware could still be in progress of DMAing | |
3574 | * payload, so don't free data buffer till after | |
3575 | * a hbeat. | |
3576 | */ | |
3577 | elsiocb->iocb_flag &= ~LPFC_DELAY_MEM_FREE; | |
3578 | buf_ptr = elsiocb->context2; | |
3579 | elsiocb->context2 = NULL; | |
3580 | if (buf_ptr) { | |
3581 | buf_ptr1 = NULL; | |
3582 | spin_lock_irq(&phba->hbalock); | |
3583 | if (!list_empty(&buf_ptr->list)) { | |
3584 | list_remove_head(&buf_ptr->list, | |
3585 | buf_ptr1, struct lpfc_dmabuf, | |
3586 | list); | |
3587 | INIT_LIST_HEAD(&buf_ptr1->list); | |
3588 | list_add_tail(&buf_ptr1->list, | |
3589 | &phba->elsbuf); | |
3590 | phba->elsbuf_cnt++; | |
3591 | } | |
3592 | INIT_LIST_HEAD(&buf_ptr->list); | |
3593 | list_add_tail(&buf_ptr->list, &phba->elsbuf); | |
3594 | phba->elsbuf_cnt++; | |
3595 | spin_unlock_irq(&phba->hbalock); | |
3596 | } | |
3597 | } else { | |
3598 | buf_ptr1 = (struct lpfc_dmabuf *) elsiocb->context2; | |
3599 | lpfc_els_free_data(phba, buf_ptr1); | |
3600 | } | |
dea3101e | 3601 | } |
3602 | ||
3603 | if (elsiocb->context3) { | |
3604 | buf_ptr = (struct lpfc_dmabuf *) elsiocb->context3; | |
87af33fe | 3605 | lpfc_els_free_bpl(phba, buf_ptr); |
dea3101e | 3606 | } |
604a3e30 | 3607 | lpfc_sli_release_iocbq(phba, elsiocb); |
dea3101e | 3608 | return 0; |
3609 | } | |
3610 | ||
e59058c4 | 3611 | /** |
3621a710 | 3612 | * lpfc_cmpl_els_logo_acc - Completion callback function to logo acc response |
e59058c4 JS |
3613 | * @phba: pointer to lpfc hba data structure. |
3614 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
3615 | * @rspiocb: pointer to lpfc response iocb data structure. | |
3616 | * | |
3617 | * This routine is the completion callback function to the Logout (LOGO) | |
3618 | * Accept (ACC) Response ELS command. This routine is invoked to indicate | |
3619 | * the completion of the LOGO process. It invokes the lpfc_nlp_not_used() to | |
3620 | * release the ndlp if it has the last reference remaining (reference count | |
3621 | * is 1). If succeeded (meaning ndlp released), it sets the IOCB context1 | |
3622 | * field to NULL to inform the following lpfc_els_free_iocb() routine no | |
3623 | * ndlp reference count needs to be decremented. Otherwise, the ndlp | |
3624 | * reference use-count shall be decremented by the lpfc_els_free_iocb() | |
3625 | * routine. Finally, the lpfc_els_free_iocb() is invoked to release the | |
3626 | * IOCB data structure. | |
3627 | **/ | |
dea3101e | 3628 | static void |
2e0fef85 JS |
3629 | lpfc_cmpl_els_logo_acc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
3630 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 3631 | { |
2e0fef85 JS |
3632 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; |
3633 | struct lpfc_vport *vport = cmdiocb->vport; | |
858c9f6c JS |
3634 | IOCB_t *irsp; |
3635 | ||
3636 | irsp = &rspiocb->iocb; | |
3637 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
3638 | "ACC LOGO cmpl: status:x%x/x%x did:x%x", | |
3639 | irsp->ulpStatus, irsp->un.ulpWord[4], ndlp->nlp_DID); | |
dea3101e | 3640 | /* ACC to LOGO completes to NPort <nlp_DID> */ |
e8b62011 JS |
3641 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3642 | "0109 ACC to LOGO completes to NPort x%x " | |
3643 | "Data: x%x x%x x%x\n", | |
3644 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3645 | ndlp->nlp_rpi); | |
87af33fe JS |
3646 | |
3647 | if (ndlp->nlp_state == NLP_STE_NPR_NODE) { | |
3648 | /* NPort Recovery mode or node is just allocated */ | |
3649 | if (!lpfc_nlp_not_used(ndlp)) { | |
3650 | /* If the ndlp is being used by another discovery | |
3651 | * thread, just unregister the RPI. | |
3652 | */ | |
3653 | lpfc_unreg_rpi(vport, ndlp); | |
fa4066b6 JS |
3654 | } else { |
3655 | /* Indicate the node has already released, should | |
3656 | * not reference to it from within lpfc_els_free_iocb. | |
3657 | */ | |
3658 | cmdiocb->context1 = NULL; | |
87af33fe | 3659 | } |
dea3101e | 3660 | } |
73d91e50 JS |
3661 | |
3662 | /* | |
3663 | * The driver received a LOGO from the rport and has ACK'd it. | |
df9e1b59 | 3664 | * At this point, the driver is done so release the IOCB |
73d91e50 | 3665 | */ |
dea3101e | 3666 | lpfc_els_free_iocb(phba, cmdiocb); |
df9e1b59 JS |
3667 | |
3668 | /* | |
3669 | * Remove the ndlp reference if it's a fabric node that has | |
3670 | * sent us an unsolicted LOGO. | |
3671 | */ | |
3672 | if (ndlp->nlp_type & NLP_FABRIC) | |
3673 | lpfc_nlp_put(ndlp); | |
3674 | ||
dea3101e | 3675 | return; |
3676 | } | |
3677 | ||
e59058c4 | 3678 | /** |
3621a710 | 3679 | * lpfc_mbx_cmpl_dflt_rpi - Completion callbk func for unreg dflt rpi mbox cmd |
e59058c4 JS |
3680 | * @phba: pointer to lpfc hba data structure. |
3681 | * @pmb: pointer to the driver internal queue element for mailbox command. | |
3682 | * | |
3683 | * This routine is the completion callback function for unregister default | |
3684 | * RPI (Remote Port Index) mailbox command to the @phba. It simply releases | |
3685 | * the associated lpfc Direct Memory Access (DMA) buffer back to the pool and | |
3686 | * decrements the ndlp reference count held for this completion callback | |
3687 | * function. After that, it invokes the lpfc_nlp_not_used() to check | |
3688 | * whether there is only one reference left on the ndlp. If so, it will | |
3689 | * perform one more decrement and trigger the release of the ndlp. | |
3690 | **/ | |
858c9f6c JS |
3691 | void |
3692 | lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) | |
3693 | { | |
3694 | struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); | |
3695 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; | |
3696 | ||
3697 | pmb->context1 = NULL; | |
d439d286 JS |
3698 | pmb->context2 = NULL; |
3699 | ||
858c9f6c JS |
3700 | lpfc_mbuf_free(phba, mp->virt, mp->phys); |
3701 | kfree(mp); | |
3702 | mempool_free(pmb, phba->mbox_mem_pool); | |
086a345f JS |
3703 | if (ndlp) { |
3704 | if (NLP_CHK_NODE_ACT(ndlp)) { | |
3705 | lpfc_nlp_put(ndlp); | |
3706 | /* This is the end of the default RPI cleanup logic for | |
3707 | * this ndlp. If no other discovery threads are using | |
3708 | * this ndlp, free all resources associated with it. | |
3709 | */ | |
3710 | lpfc_nlp_not_used(ndlp); | |
3711 | } else { | |
3712 | lpfc_drop_node(ndlp->vport, ndlp); | |
3713 | } | |
a8adb832 | 3714 | } |
3772a991 | 3715 | |
858c9f6c JS |
3716 | return; |
3717 | } | |
3718 | ||
e59058c4 | 3719 | /** |
3621a710 | 3720 | * lpfc_cmpl_els_rsp - Completion callback function for els response iocb cmd |
e59058c4 JS |
3721 | * @phba: pointer to lpfc hba data structure. |
3722 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
3723 | * @rspiocb: pointer to lpfc response iocb data structure. | |
3724 | * | |
3725 | * This routine is the completion callback function for ELS Response IOCB | |
3726 | * command. In normal case, this callback function just properly sets the | |
3727 | * nlp_flag bitmap in the ndlp data structure, if the mbox command reference | |
3728 | * field in the command IOCB is not NULL, the referred mailbox command will | |
3729 | * be send out, and then invokes the lpfc_els_free_iocb() routine to release | |
3730 | * the IOCB. Under error conditions, such as when a LS_RJT is returned or a | |
3731 | * link down event occurred during the discovery, the lpfc_nlp_not_used() | |
3732 | * routine shall be invoked trying to release the ndlp if no other threads | |
3733 | * are currently referring it. | |
3734 | **/ | |
dea3101e | 3735 | static void |
858c9f6c | 3736 | lpfc_cmpl_els_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
329f9bc7 | 3737 | struct lpfc_iocbq *rspiocb) |
dea3101e | 3738 | { |
2e0fef85 JS |
3739 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; |
3740 | struct lpfc_vport *vport = ndlp ? ndlp->vport : NULL; | |
3741 | struct Scsi_Host *shost = vport ? lpfc_shost_from_vport(vport) : NULL; | |
87af33fe JS |
3742 | IOCB_t *irsp; |
3743 | uint8_t *pcmd; | |
dea3101e | 3744 | LPFC_MBOXQ_t *mbox = NULL; |
2e0fef85 | 3745 | struct lpfc_dmabuf *mp = NULL; |
87af33fe | 3746 | uint32_t ls_rjt = 0; |
dea3101e | 3747 | |
33ccf8d1 JS |
3748 | irsp = &rspiocb->iocb; |
3749 | ||
dea3101e | 3750 | if (cmdiocb->context_un.mbox) |
3751 | mbox = cmdiocb->context_un.mbox; | |
3752 | ||
fa4066b6 JS |
3753 | /* First determine if this is a LS_RJT cmpl. Note, this callback |
3754 | * function can have cmdiocb->contest1 (ndlp) field set to NULL. | |
3755 | */ | |
87af33fe | 3756 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt); |
58da1ffb JS |
3757 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && |
3758 | (*((uint32_t *) (pcmd)) == ELS_CMD_LS_RJT)) { | |
fa4066b6 | 3759 | /* A LS_RJT associated with Default RPI cleanup has its own |
3ad2f3fb | 3760 | * separate code path. |
87af33fe JS |
3761 | */ |
3762 | if (!(ndlp->nlp_flag & NLP_RM_DFLT_RPI)) | |
3763 | ls_rjt = 1; | |
3764 | } | |
3765 | ||
dea3101e | 3766 | /* Check to see if link went down during discovery */ |
58da1ffb | 3767 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || lpfc_els_chk_latt(vport)) { |
dea3101e | 3768 | if (mbox) { |
14691150 JS |
3769 | mp = (struct lpfc_dmabuf *) mbox->context1; |
3770 | if (mp) { | |
3771 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
3772 | kfree(mp); | |
3773 | } | |
329f9bc7 | 3774 | mempool_free(mbox, phba->mbox_mem_pool); |
dea3101e | 3775 | } |
58da1ffb JS |
3776 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && |
3777 | (ndlp->nlp_flag & NLP_RM_DFLT_RPI)) | |
fa4066b6 | 3778 | if (lpfc_nlp_not_used(ndlp)) { |
98c9ea5c | 3779 | ndlp = NULL; |
fa4066b6 JS |
3780 | /* Indicate the node has already released, |
3781 | * should not reference to it from within | |
3782 | * the routine lpfc_els_free_iocb. | |
3783 | */ | |
3784 | cmdiocb->context1 = NULL; | |
3785 | } | |
dea3101e | 3786 | goto out; |
3787 | } | |
3788 | ||
858c9f6c | 3789 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
51ef4c26 | 3790 | "ELS rsp cmpl: status:x%x/x%x did:x%x", |
858c9f6c | 3791 | irsp->ulpStatus, irsp->un.ulpWord[4], |
51ef4c26 | 3792 | cmdiocb->iocb.un.elsreq64.remoteID); |
dea3101e | 3793 | /* ELS response tag <ulpIoTag> completes */ |
e8b62011 JS |
3794 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3795 | "0110 ELS response tag x%x completes " | |
3796 | "Data: x%x x%x x%x x%x x%x x%x x%x\n", | |
3797 | cmdiocb->iocb.ulpIoTag, rspiocb->iocb.ulpStatus, | |
3798 | rspiocb->iocb.un.ulpWord[4], rspiocb->iocb.ulpTimeout, | |
3799 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3800 | ndlp->nlp_rpi); | |
dea3101e | 3801 | if (mbox) { |
3802 | if ((rspiocb->iocb.ulpStatus == 0) | |
3803 | && (ndlp->nlp_flag & NLP_ACC_REGLOGIN)) { | |
2e0fef85 | 3804 | lpfc_unreg_rpi(vport, ndlp); |
e47c9093 JS |
3805 | /* Increment reference count to ndlp to hold the |
3806 | * reference to ndlp for the callback function. | |
3807 | */ | |
329f9bc7 | 3808 | mbox->context2 = lpfc_nlp_get(ndlp); |
2e0fef85 | 3809 | mbox->vport = vport; |
858c9f6c JS |
3810 | if (ndlp->nlp_flag & NLP_RM_DFLT_RPI) { |
3811 | mbox->mbox_flag |= LPFC_MBX_IMED_UNREG; | |
3812 | mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi; | |
3813 | } | |
3814 | else { | |
3815 | mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; | |
3816 | ndlp->nlp_prev_state = ndlp->nlp_state; | |
3817 | lpfc_nlp_set_state(vport, ndlp, | |
2e0fef85 | 3818 | NLP_STE_REG_LOGIN_ISSUE); |
858c9f6c | 3819 | } |
0b727fea | 3820 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) |
e47c9093 | 3821 | != MBX_NOT_FINISHED) |
dea3101e | 3822 | goto out; |
e47c9093 JS |
3823 | else |
3824 | /* Decrement the ndlp reference count we | |
3825 | * set for this failed mailbox command. | |
3826 | */ | |
3827 | lpfc_nlp_put(ndlp); | |
98c9ea5c JS |
3828 | |
3829 | /* ELS rsp: Cannot issue reg_login for <NPortid> */ | |
3830 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
3831 | "0138 ELS rsp: Cannot issue reg_login for x%x " | |
3832 | "Data: x%x x%x x%x\n", | |
3833 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3834 | ndlp->nlp_rpi); | |
3835 | ||
fa4066b6 | 3836 | if (lpfc_nlp_not_used(ndlp)) { |
98c9ea5c | 3837 | ndlp = NULL; |
fa4066b6 JS |
3838 | /* Indicate node has already been released, |
3839 | * should not reference to it from within | |
3840 | * the routine lpfc_els_free_iocb. | |
3841 | */ | |
3842 | cmdiocb->context1 = NULL; | |
3843 | } | |
dea3101e | 3844 | } else { |
858c9f6c JS |
3845 | /* Do not drop node for lpfc_els_abort'ed ELS cmds */ |
3846 | if (!lpfc_error_lost_link(irsp) && | |
3847 | ndlp->nlp_flag & NLP_ACC_REGLOGIN) { | |
fa4066b6 | 3848 | if (lpfc_nlp_not_used(ndlp)) { |
98c9ea5c | 3849 | ndlp = NULL; |
fa4066b6 JS |
3850 | /* Indicate node has already been |
3851 | * released, should not reference | |
3852 | * to it from within the routine | |
3853 | * lpfc_els_free_iocb. | |
3854 | */ | |
3855 | cmdiocb->context1 = NULL; | |
3856 | } | |
dea3101e | 3857 | } |
3858 | } | |
14691150 JS |
3859 | mp = (struct lpfc_dmabuf *) mbox->context1; |
3860 | if (mp) { | |
3861 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
3862 | kfree(mp); | |
3863 | } | |
3864 | mempool_free(mbox, phba->mbox_mem_pool); | |
dea3101e | 3865 | } |
3866 | out: | |
58da1ffb | 3867 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) { |
2e0fef85 | 3868 | spin_lock_irq(shost->host_lock); |
858c9f6c | 3869 | ndlp->nlp_flag &= ~(NLP_ACC_REGLOGIN | NLP_RM_DFLT_RPI); |
2e0fef85 | 3870 | spin_unlock_irq(shost->host_lock); |
87af33fe JS |
3871 | |
3872 | /* If the node is not being used by another discovery thread, | |
3873 | * and we are sending a reject, we are done with it. | |
3874 | * Release driver reference count here and free associated | |
3875 | * resources. | |
3876 | */ | |
3877 | if (ls_rjt) | |
fa4066b6 JS |
3878 | if (lpfc_nlp_not_used(ndlp)) |
3879 | /* Indicate node has already been released, | |
3880 | * should not reference to it from within | |
3881 | * the routine lpfc_els_free_iocb. | |
3882 | */ | |
3883 | cmdiocb->context1 = NULL; | |
dea3101e | 3884 | } |
87af33fe | 3885 | |
dea3101e | 3886 | lpfc_els_free_iocb(phba, cmdiocb); |
3887 | return; | |
3888 | } | |
3889 | ||
e59058c4 | 3890 | /** |
3621a710 | 3891 | * lpfc_els_rsp_acc - Prepare and issue an acc response iocb command |
e59058c4 JS |
3892 | * @vport: pointer to a host virtual N_Port data structure. |
3893 | * @flag: the els command code to be accepted. | |
3894 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3895 | * @ndlp: pointer to a node-list data structure. | |
3896 | * @mbox: pointer to the driver internal queue element for mailbox command. | |
3897 | * | |
3898 | * This routine prepares and issues an Accept (ACC) response IOCB | |
3899 | * command. It uses the @flag to properly set up the IOCB field for the | |
3900 | * specific ACC response command to be issued and invokes the | |
3901 | * lpfc_sli_issue_iocb() routine to send out ACC response IOCB. If a | |
3902 | * @mbox pointer is passed in, it will be put into the context_un.mbox | |
3903 | * field of the IOCB for the completion callback function to issue the | |
3904 | * mailbox command to the HBA later when callback is invoked. | |
3905 | * | |
3906 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
3907 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
3908 | * will be stored into the context1 field of the IOCB for the completion | |
3909 | * callback function to the corresponding response ELS IOCB command. | |
3910 | * | |
3911 | * Return code | |
3912 | * 0 - Successfully issued acc response | |
3913 | * 1 - Failed to issue acc response | |
3914 | **/ | |
dea3101e | 3915 | int |
2e0fef85 JS |
3916 | lpfc_els_rsp_acc(struct lpfc_vport *vport, uint32_t flag, |
3917 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp, | |
51ef4c26 | 3918 | LPFC_MBOXQ_t *mbox) |
dea3101e | 3919 | { |
2e0fef85 JS |
3920 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
3921 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 3922 | IOCB_t *icmd; |
3923 | IOCB_t *oldcmd; | |
3924 | struct lpfc_iocbq *elsiocb; | |
dea3101e | 3925 | struct lpfc_sli *psli; |
3926 | uint8_t *pcmd; | |
3927 | uint16_t cmdsize; | |
3928 | int rc; | |
82d9a2a2 | 3929 | ELS_PKT *els_pkt_ptr; |
dea3101e | 3930 | |
3931 | psli = &phba->sli; | |
dea3101e | 3932 | oldcmd = &oldiocb->iocb; |
3933 | ||
3934 | switch (flag) { | |
3935 | case ELS_CMD_ACC: | |
92d7f7b0 | 3936 | cmdsize = sizeof(uint32_t); |
2e0fef85 JS |
3937 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, |
3938 | ndlp, ndlp->nlp_DID, ELS_CMD_ACC); | |
488d1469 | 3939 | if (!elsiocb) { |
2e0fef85 | 3940 | spin_lock_irq(shost->host_lock); |
5024ab17 | 3941 | ndlp->nlp_flag &= ~NLP_LOGO_ACC; |
2e0fef85 | 3942 | spin_unlock_irq(shost->host_lock); |
c9f8735b | 3943 | return 1; |
dea3101e | 3944 | } |
2e0fef85 | 3945 | |
dea3101e | 3946 | icmd = &elsiocb->iocb; |
7851fe2c JS |
3947 | icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ |
3948 | icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id; | |
dea3101e | 3949 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
3950 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 | 3951 | pcmd += sizeof(uint32_t); |
858c9f6c JS |
3952 | |
3953 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
3954 | "Issue ACC: did:x%x flg:x%x", | |
3955 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
dea3101e | 3956 | break; |
3957 | case ELS_CMD_PLOGI: | |
92d7f7b0 | 3958 | cmdsize = (sizeof(struct serv_parm) + sizeof(uint32_t)); |
2e0fef85 JS |
3959 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, |
3960 | ndlp, ndlp->nlp_DID, ELS_CMD_ACC); | |
488d1469 | 3961 | if (!elsiocb) |
c9f8735b | 3962 | return 1; |
488d1469 | 3963 | |
dea3101e | 3964 | icmd = &elsiocb->iocb; |
7851fe2c JS |
3965 | icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ |
3966 | icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id; | |
dea3101e | 3967 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
3968 | ||
3969 | if (mbox) | |
3970 | elsiocb->context_un.mbox = mbox; | |
3971 | ||
3972 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 JS |
3973 | pcmd += sizeof(uint32_t); |
3974 | memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); | |
858c9f6c JS |
3975 | |
3976 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
3977 | "Issue ACC PLOGI: did:x%x flg:x%x", | |
3978 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
dea3101e | 3979 | break; |
82d9a2a2 | 3980 | case ELS_CMD_PRLO: |
92d7f7b0 | 3981 | cmdsize = sizeof(uint32_t) + sizeof(PRLO); |
2e0fef85 | 3982 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, |
82d9a2a2 JS |
3983 | ndlp, ndlp->nlp_DID, ELS_CMD_PRLO); |
3984 | if (!elsiocb) | |
3985 | return 1; | |
3986 | ||
3987 | icmd = &elsiocb->iocb; | |
7851fe2c JS |
3988 | icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ |
3989 | icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id; | |
82d9a2a2 JS |
3990 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
3991 | ||
3992 | memcpy(pcmd, ((struct lpfc_dmabuf *) oldiocb->context2)->virt, | |
92d7f7b0 | 3993 | sizeof(uint32_t) + sizeof(PRLO)); |
82d9a2a2 JS |
3994 | *((uint32_t *) (pcmd)) = ELS_CMD_PRLO_ACC; |
3995 | els_pkt_ptr = (ELS_PKT *) pcmd; | |
3996 | els_pkt_ptr->un.prlo.acceptRspCode = PRLO_REQ_EXECUTED; | |
858c9f6c JS |
3997 | |
3998 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
3999 | "Issue ACC PRLO: did:x%x flg:x%x", | |
4000 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
82d9a2a2 | 4001 | break; |
dea3101e | 4002 | default: |
c9f8735b | 4003 | return 1; |
dea3101e | 4004 | } |
dea3101e | 4005 | /* Xmit ELS ACC response tag <ulpIoTag> */ |
e8b62011 JS |
4006 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
4007 | "0128 Xmit ELS ACC response tag x%x, XRI: x%x, " | |
e6446439 JS |
4008 | "DID: x%x, nlp_flag: x%x nlp_state: x%x RPI: x%x " |
4009 | "fc_flag x%x\n", | |
e8b62011 JS |
4010 | elsiocb->iotag, elsiocb->iocb.ulpContext, |
4011 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
e6446439 | 4012 | ndlp->nlp_rpi, vport->fc_flag); |
dea3101e | 4013 | if (ndlp->nlp_flag & NLP_LOGO_ACC) { |
2e0fef85 | 4014 | spin_lock_irq(shost->host_lock); |
c9f8735b | 4015 | ndlp->nlp_flag &= ~NLP_LOGO_ACC; |
2e0fef85 | 4016 | spin_unlock_irq(shost->host_lock); |
dea3101e | 4017 | elsiocb->iocb_cmpl = lpfc_cmpl_els_logo_acc; |
4018 | } else { | |
858c9f6c | 4019 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
dea3101e | 4020 | } |
4021 | ||
4022 | phba->fc_stat.elsXmitACC++; | |
3772a991 | 4023 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
dea3101e | 4024 | if (rc == IOCB_ERROR) { |
4025 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 4026 | return 1; |
dea3101e | 4027 | } |
c9f8735b | 4028 | return 0; |
dea3101e | 4029 | } |
4030 | ||
e59058c4 | 4031 | /** |
3621a710 | 4032 | * lpfc_els_rsp_reject - Propare and issue a rjt response iocb command |
e59058c4 JS |
4033 | * @vport: pointer to a virtual N_Port data structure. |
4034 | * @rejectError: | |
4035 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
4036 | * @ndlp: pointer to a node-list data structure. | |
4037 | * @mbox: pointer to the driver internal queue element for mailbox command. | |
4038 | * | |
4039 | * This routine prepares and issue an Reject (RJT) response IOCB | |
4040 | * command. If a @mbox pointer is passed in, it will be put into the | |
4041 | * context_un.mbox field of the IOCB for the completion callback function | |
4042 | * to issue to the HBA later. | |
4043 | * | |
4044 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
4045 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
4046 | * will be stored into the context1 field of the IOCB for the completion | |
4047 | * callback function to the reject response ELS IOCB command. | |
4048 | * | |
4049 | * Return code | |
4050 | * 0 - Successfully issued reject response | |
4051 | * 1 - Failed to issue reject response | |
4052 | **/ | |
dea3101e | 4053 | int |
2e0fef85 | 4054 | lpfc_els_rsp_reject(struct lpfc_vport *vport, uint32_t rejectError, |
858c9f6c JS |
4055 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp, |
4056 | LPFC_MBOXQ_t *mbox) | |
dea3101e | 4057 | { |
2e0fef85 | 4058 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 4059 | IOCB_t *icmd; |
4060 | IOCB_t *oldcmd; | |
4061 | struct lpfc_iocbq *elsiocb; | |
dea3101e | 4062 | struct lpfc_sli *psli; |
4063 | uint8_t *pcmd; | |
4064 | uint16_t cmdsize; | |
4065 | int rc; | |
4066 | ||
4067 | psli = &phba->sli; | |
92d7f7b0 | 4068 | cmdsize = 2 * sizeof(uint32_t); |
2e0fef85 JS |
4069 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
4070 | ndlp->nlp_DID, ELS_CMD_LS_RJT); | |
488d1469 | 4071 | if (!elsiocb) |
c9f8735b | 4072 | return 1; |
dea3101e | 4073 | |
4074 | icmd = &elsiocb->iocb; | |
4075 | oldcmd = &oldiocb->iocb; | |
7851fe2c JS |
4076 | icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ |
4077 | icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id; | |
dea3101e | 4078 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
4079 | ||
4080 | *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT; | |
92d7f7b0 | 4081 | pcmd += sizeof(uint32_t); |
dea3101e | 4082 | *((uint32_t *) (pcmd)) = rejectError; |
4083 | ||
51ef4c26 | 4084 | if (mbox) |
858c9f6c | 4085 | elsiocb->context_un.mbox = mbox; |
858c9f6c | 4086 | |
dea3101e | 4087 | /* Xmit ELS RJT <err> response tag <ulpIoTag> */ |
e8b62011 JS |
4088 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
4089 | "0129 Xmit ELS RJT x%x response tag x%x " | |
4090 | "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, " | |
4091 | "rpi x%x\n", | |
4092 | rejectError, elsiocb->iotag, | |
4093 | elsiocb->iocb.ulpContext, ndlp->nlp_DID, | |
4094 | ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi); | |
858c9f6c JS |
4095 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
4096 | "Issue LS_RJT: did:x%x flg:x%x err:x%x", | |
4097 | ndlp->nlp_DID, ndlp->nlp_flag, rejectError); | |
4098 | ||
dea3101e | 4099 | phba->fc_stat.elsXmitLSRJT++; |
858c9f6c | 4100 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
3772a991 | 4101 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
51ef4c26 | 4102 | |
dea3101e | 4103 | if (rc == IOCB_ERROR) { |
4104 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 4105 | return 1; |
dea3101e | 4106 | } |
c9f8735b | 4107 | return 0; |
dea3101e | 4108 | } |
4109 | ||
e59058c4 | 4110 | /** |
3621a710 | 4111 | * lpfc_els_rsp_adisc_acc - Prepare and issue acc response to adisc iocb cmd |
e59058c4 JS |
4112 | * @vport: pointer to a virtual N_Port data structure. |
4113 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
4114 | * @ndlp: pointer to a node-list data structure. | |
4115 | * | |
4116 | * This routine prepares and issues an Accept (ACC) response to Address | |
4117 | * Discover (ADISC) ELS command. It simply prepares the payload of the IOCB | |
4118 | * and invokes the lpfc_sli_issue_iocb() routine to send out the command. | |
4119 | * | |
4120 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
4121 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
4122 | * will be stored into the context1 field of the IOCB for the completion | |
4123 | * callback function to the ADISC Accept response ELS IOCB command. | |
4124 | * | |
4125 | * Return code | |
4126 | * 0 - Successfully issued acc adisc response | |
4127 | * 1 - Failed to issue adisc acc response | |
4128 | **/ | |
dea3101e | 4129 | int |
2e0fef85 JS |
4130 | lpfc_els_rsp_adisc_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb, |
4131 | struct lpfc_nodelist *ndlp) | |
dea3101e | 4132 | { |
2e0fef85 | 4133 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 4134 | ADISC *ap; |
2e0fef85 | 4135 | IOCB_t *icmd, *oldcmd; |
dea3101e | 4136 | struct lpfc_iocbq *elsiocb; |
dea3101e | 4137 | uint8_t *pcmd; |
4138 | uint16_t cmdsize; | |
4139 | int rc; | |
4140 | ||
92d7f7b0 | 4141 | cmdsize = sizeof(uint32_t) + sizeof(ADISC); |
2e0fef85 JS |
4142 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
4143 | ndlp->nlp_DID, ELS_CMD_ACC); | |
488d1469 | 4144 | if (!elsiocb) |
c9f8735b | 4145 | return 1; |
dea3101e | 4146 | |
5b8bd0c9 JS |
4147 | icmd = &elsiocb->iocb; |
4148 | oldcmd = &oldiocb->iocb; | |
7851fe2c JS |
4149 | icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ |
4150 | icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id; | |
5b8bd0c9 | 4151 | |
dea3101e | 4152 | /* Xmit ADISC ACC response tag <ulpIoTag> */ |
e8b62011 JS |
4153 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
4154 | "0130 Xmit ADISC ACC response iotag x%x xri: " | |
4155 | "x%x, did x%x, nlp_flag x%x, nlp_state x%x rpi x%x\n", | |
4156 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
4157 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
4158 | ndlp->nlp_rpi); | |
dea3101e | 4159 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
4160 | ||
4161 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 | 4162 | pcmd += sizeof(uint32_t); |
dea3101e | 4163 | |
4164 | ap = (ADISC *) (pcmd); | |
4165 | ap->hardAL_PA = phba->fc_pref_ALPA; | |
92d7f7b0 JS |
4166 | memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name)); |
4167 | memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
2e0fef85 | 4168 | ap->DID = be32_to_cpu(vport->fc_myDID); |
dea3101e | 4169 | |
858c9f6c JS |
4170 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
4171 | "Issue ACC ADISC: did:x%x flg:x%x", | |
4172 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
4173 | ||
dea3101e | 4174 | phba->fc_stat.elsXmitACC++; |
858c9f6c | 4175 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
3772a991 | 4176 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
dea3101e | 4177 | if (rc == IOCB_ERROR) { |
4178 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 4179 | return 1; |
dea3101e | 4180 | } |
c9f8735b | 4181 | return 0; |
dea3101e | 4182 | } |
4183 | ||
e59058c4 | 4184 | /** |
3621a710 | 4185 | * lpfc_els_rsp_prli_acc - Prepare and issue acc response to prli iocb cmd |
e59058c4 JS |
4186 | * @vport: pointer to a virtual N_Port data structure. |
4187 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
4188 | * @ndlp: pointer to a node-list data structure. | |
4189 | * | |
4190 | * This routine prepares and issues an Accept (ACC) response to Process | |
4191 | * Login (PRLI) ELS command. It simply prepares the payload of the IOCB | |
4192 | * and invokes the lpfc_sli_issue_iocb() routine to send out the command. | |
4193 | * | |
4194 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
4195 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
4196 | * will be stored into the context1 field of the IOCB for the completion | |
4197 | * callback function to the PRLI Accept response ELS IOCB command. | |
4198 | * | |
4199 | * Return code | |
4200 | * 0 - Successfully issued acc prli response | |
4201 | * 1 - Failed to issue acc prli response | |
4202 | **/ | |
dea3101e | 4203 | int |
2e0fef85 | 4204 | lpfc_els_rsp_prli_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb, |
5b8bd0c9 | 4205 | struct lpfc_nodelist *ndlp) |
dea3101e | 4206 | { |
2e0fef85 | 4207 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 4208 | PRLI *npr; |
4209 | lpfc_vpd_t *vpd; | |
4210 | IOCB_t *icmd; | |
4211 | IOCB_t *oldcmd; | |
4212 | struct lpfc_iocbq *elsiocb; | |
dea3101e | 4213 | struct lpfc_sli *psli; |
4214 | uint8_t *pcmd; | |
4215 | uint16_t cmdsize; | |
4216 | int rc; | |
4217 | ||
4218 | psli = &phba->sli; | |
dea3101e | 4219 | |
92d7f7b0 | 4220 | cmdsize = sizeof(uint32_t) + sizeof(PRLI); |
2e0fef85 | 4221 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
92d7f7b0 | 4222 | ndlp->nlp_DID, (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK))); |
c9f8735b JW |
4223 | if (!elsiocb) |
4224 | return 1; | |
dea3101e | 4225 | |
5b8bd0c9 JS |
4226 | icmd = &elsiocb->iocb; |
4227 | oldcmd = &oldiocb->iocb; | |
7851fe2c JS |
4228 | icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ |
4229 | icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id; | |
4230 | ||
dea3101e | 4231 | /* Xmit PRLI ACC response tag <ulpIoTag> */ |
e8b62011 JS |
4232 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
4233 | "0131 Xmit PRLI ACC response tag x%x xri x%x, " | |
4234 | "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n", | |
4235 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
4236 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
4237 | ndlp->nlp_rpi); | |
dea3101e | 4238 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
4239 | ||
4240 | *((uint32_t *) (pcmd)) = (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK)); | |
92d7f7b0 | 4241 | pcmd += sizeof(uint32_t); |
dea3101e | 4242 | |
4243 | /* For PRLI, remainder of payload is PRLI parameter page */ | |
92d7f7b0 | 4244 | memset(pcmd, 0, sizeof(PRLI)); |
dea3101e | 4245 | |
4246 | npr = (PRLI *) pcmd; | |
4247 | vpd = &phba->vpd; | |
4248 | /* | |
0d2b6b83 JS |
4249 | * If the remote port is a target and our firmware version is 3.20 or |
4250 | * later, set the following bits for FC-TAPE support. | |
dea3101e | 4251 | */ |
0d2b6b83 JS |
4252 | if ((ndlp->nlp_type & NLP_FCP_TARGET) && |
4253 | (vpd->rev.feaLevelHigh >= 0x02)) { | |
dea3101e | 4254 | npr->ConfmComplAllowed = 1; |
4255 | npr->Retry = 1; | |
4256 | npr->TaskRetryIdReq = 1; | |
4257 | } | |
4258 | ||
4259 | npr->acceptRspCode = PRLI_REQ_EXECUTED; | |
4260 | npr->estabImagePair = 1; | |
4261 | npr->readXferRdyDis = 1; | |
4262 | npr->ConfmComplAllowed = 1; | |
4263 | ||
4264 | npr->prliType = PRLI_FCP_TYPE; | |
4265 | npr->initiatorFunc = 1; | |
4266 | ||
858c9f6c JS |
4267 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
4268 | "Issue ACC PRLI: did:x%x flg:x%x", | |
4269 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
4270 | ||
dea3101e | 4271 | phba->fc_stat.elsXmitACC++; |
858c9f6c | 4272 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
dea3101e | 4273 | |
3772a991 | 4274 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
dea3101e | 4275 | if (rc == IOCB_ERROR) { |
4276 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 4277 | return 1; |
dea3101e | 4278 | } |
c9f8735b | 4279 | return 0; |
dea3101e | 4280 | } |
4281 | ||
e59058c4 | 4282 | /** |
3621a710 | 4283 | * lpfc_els_rsp_rnid_acc - Issue rnid acc response iocb command |
e59058c4 JS |
4284 | * @vport: pointer to a virtual N_Port data structure. |
4285 | * @format: rnid command format. | |
4286 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
4287 | * @ndlp: pointer to a node-list data structure. | |
4288 | * | |
4289 | * This routine issues a Request Node Identification Data (RNID) Accept | |
4290 | * (ACC) response. It constructs the RNID ACC response command according to | |
4291 | * the proper @format and then calls the lpfc_sli_issue_iocb() routine to | |
4292 | * issue the response. Note that this command does not need to hold the ndlp | |
4293 | * reference count for the callback. So, the ndlp reference count taken by | |
4294 | * the lpfc_prep_els_iocb() routine is put back and the context1 field of | |
4295 | * IOCB is set to NULL to indicate to the lpfc_els_free_iocb() routine that | |
4296 | * there is no ndlp reference available. | |
4297 | * | |
4298 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
4299 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
4300 | * will be stored into the context1 field of the IOCB for the completion | |
4301 | * callback function. However, for the RNID Accept Response ELS command, | |
4302 | * this is undone later by this routine after the IOCB is allocated. | |
4303 | * | |
4304 | * Return code | |
4305 | * 0 - Successfully issued acc rnid response | |
4306 | * 1 - Failed to issue acc rnid response | |
4307 | **/ | |
dea3101e | 4308 | static int |
2e0fef85 | 4309 | lpfc_els_rsp_rnid_acc(struct lpfc_vport *vport, uint8_t format, |
329f9bc7 | 4310 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) |
dea3101e | 4311 | { |
2e0fef85 | 4312 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 4313 | RNID *rn; |
2e0fef85 | 4314 | IOCB_t *icmd, *oldcmd; |
dea3101e | 4315 | struct lpfc_iocbq *elsiocb; |
dea3101e | 4316 | struct lpfc_sli *psli; |
4317 | uint8_t *pcmd; | |
4318 | uint16_t cmdsize; | |
4319 | int rc; | |
4320 | ||
4321 | psli = &phba->sli; | |
92d7f7b0 JS |
4322 | cmdsize = sizeof(uint32_t) + sizeof(uint32_t) |
4323 | + (2 * sizeof(struct lpfc_name)); | |
dea3101e | 4324 | if (format) |
92d7f7b0 | 4325 | cmdsize += sizeof(RNID_TOP_DISC); |
dea3101e | 4326 | |
2e0fef85 JS |
4327 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
4328 | ndlp->nlp_DID, ELS_CMD_ACC); | |
488d1469 | 4329 | if (!elsiocb) |
c9f8735b | 4330 | return 1; |
dea3101e | 4331 | |
5b8bd0c9 JS |
4332 | icmd = &elsiocb->iocb; |
4333 | oldcmd = &oldiocb->iocb; | |
7851fe2c JS |
4334 | icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ |
4335 | icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id; | |
4336 | ||
dea3101e | 4337 | /* Xmit RNID ACC response tag <ulpIoTag> */ |
e8b62011 JS |
4338 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
4339 | "0132 Xmit RNID ACC response tag x%x xri x%x\n", | |
4340 | elsiocb->iotag, elsiocb->iocb.ulpContext); | |
dea3101e | 4341 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
dea3101e | 4342 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; |
92d7f7b0 | 4343 | pcmd += sizeof(uint32_t); |
dea3101e | 4344 | |
92d7f7b0 | 4345 | memset(pcmd, 0, sizeof(RNID)); |
dea3101e | 4346 | rn = (RNID *) (pcmd); |
4347 | rn->Format = format; | |
92d7f7b0 JS |
4348 | rn->CommonLen = (2 * sizeof(struct lpfc_name)); |
4349 | memcpy(&rn->portName, &vport->fc_portname, sizeof(struct lpfc_name)); | |
4350 | memcpy(&rn->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
dea3101e | 4351 | switch (format) { |
4352 | case 0: | |
4353 | rn->SpecificLen = 0; | |
4354 | break; | |
4355 | case RNID_TOPOLOGY_DISC: | |
92d7f7b0 | 4356 | rn->SpecificLen = sizeof(RNID_TOP_DISC); |
dea3101e | 4357 | memcpy(&rn->un.topologyDisc.portName, |
92d7f7b0 | 4358 | &vport->fc_portname, sizeof(struct lpfc_name)); |
dea3101e | 4359 | rn->un.topologyDisc.unitType = RNID_HBA; |
4360 | rn->un.topologyDisc.physPort = 0; | |
4361 | rn->un.topologyDisc.attachedNodes = 0; | |
4362 | break; | |
4363 | default: | |
4364 | rn->CommonLen = 0; | |
4365 | rn->SpecificLen = 0; | |
4366 | break; | |
4367 | } | |
4368 | ||
858c9f6c JS |
4369 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
4370 | "Issue ACC RNID: did:x%x flg:x%x", | |
4371 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
4372 | ||
dea3101e | 4373 | phba->fc_stat.elsXmitACC++; |
858c9f6c | 4374 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
dea3101e | 4375 | |
3772a991 | 4376 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
dea3101e | 4377 | if (rc == IOCB_ERROR) { |
4378 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 4379 | return 1; |
dea3101e | 4380 | } |
c9f8735b | 4381 | return 0; |
dea3101e | 4382 | } |
4383 | ||
19ca7609 JS |
4384 | /** |
4385 | * lpfc_els_clear_rrq - Clear the rq that this rrq describes. | |
4386 | * @vport: pointer to a virtual N_Port data structure. | |
4387 | * @iocb: pointer to the lpfc command iocb data structure. | |
4388 | * @ndlp: pointer to a node-list data structure. | |
4389 | * | |
4390 | * Return | |
4391 | **/ | |
4392 | static void | |
4393 | lpfc_els_clear_rrq(struct lpfc_vport *vport, | |
4394 | struct lpfc_iocbq *iocb, struct lpfc_nodelist *ndlp) | |
4395 | { | |
4396 | struct lpfc_hba *phba = vport->phba; | |
4397 | uint8_t *pcmd; | |
4398 | struct RRQ *rrq; | |
4399 | uint16_t rxid; | |
1151e3ec | 4400 | uint16_t xri; |
19ca7609 JS |
4401 | struct lpfc_node_rrq *prrq; |
4402 | ||
4403 | ||
4404 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) iocb->context2)->virt); | |
4405 | pcmd += sizeof(uint32_t); | |
4406 | rrq = (struct RRQ *)pcmd; | |
1151e3ec | 4407 | rrq->rrq_exchg = be32_to_cpu(rrq->rrq_exchg); |
9589b062 | 4408 | rxid = bf_get(rrq_rxid, rrq); |
19ca7609 JS |
4409 | |
4410 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
4411 | "2883 Clear RRQ for SID:x%x OXID:x%x RXID:x%x" | |
4412 | " x%x x%x\n", | |
1151e3ec | 4413 | be32_to_cpu(bf_get(rrq_did, rrq)), |
9589b062 | 4414 | bf_get(rrq_oxid, rrq), |
19ca7609 JS |
4415 | rxid, |
4416 | iocb->iotag, iocb->iocb.ulpContext); | |
4417 | ||
4418 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
4419 | "Clear RRQ: did:x%x flg:x%x exchg:x%.08x", | |
4420 | ndlp->nlp_DID, ndlp->nlp_flag, rrq->rrq_exchg); | |
1151e3ec | 4421 | if (vport->fc_myDID == be32_to_cpu(bf_get(rrq_did, rrq))) |
9589b062 | 4422 | xri = bf_get(rrq_oxid, rrq); |
1151e3ec JS |
4423 | else |
4424 | xri = rxid; | |
4425 | prrq = lpfc_get_active_rrq(vport, xri, ndlp->nlp_DID); | |
19ca7609 | 4426 | if (prrq) |
1151e3ec | 4427 | lpfc_clr_rrq_active(phba, xri, prrq); |
19ca7609 JS |
4428 | return; |
4429 | } | |
4430 | ||
12265f68 JS |
4431 | /** |
4432 | * lpfc_els_rsp_echo_acc - Issue echo acc response | |
4433 | * @vport: pointer to a virtual N_Port data structure. | |
4434 | * @data: pointer to echo data to return in the accept. | |
4435 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
4436 | * @ndlp: pointer to a node-list data structure. | |
4437 | * | |
4438 | * Return code | |
4439 | * 0 - Successfully issued acc echo response | |
4440 | * 1 - Failed to issue acc echo response | |
4441 | **/ | |
4442 | static int | |
4443 | lpfc_els_rsp_echo_acc(struct lpfc_vport *vport, uint8_t *data, | |
4444 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) | |
4445 | { | |
4446 | struct lpfc_hba *phba = vport->phba; | |
4447 | struct lpfc_iocbq *elsiocb; | |
4448 | struct lpfc_sli *psli; | |
4449 | uint8_t *pcmd; | |
4450 | uint16_t cmdsize; | |
4451 | int rc; | |
4452 | ||
4453 | psli = &phba->sli; | |
4454 | cmdsize = oldiocb->iocb.unsli3.rcvsli3.acc_len; | |
4455 | ||
bf08611b JS |
4456 | /* The accumulated length can exceed the BPL_SIZE. For |
4457 | * now, use this as the limit | |
4458 | */ | |
4459 | if (cmdsize > LPFC_BPL_SIZE) | |
4460 | cmdsize = LPFC_BPL_SIZE; | |
12265f68 JS |
4461 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
4462 | ndlp->nlp_DID, ELS_CMD_ACC); | |
4463 | if (!elsiocb) | |
4464 | return 1; | |
4465 | ||
7851fe2c JS |
4466 | elsiocb->iocb.ulpContext = oldiocb->iocb.ulpContext; /* Xri / rx_id */ |
4467 | elsiocb->iocb.unsli3.rcvsli3.ox_id = oldiocb->iocb.unsli3.rcvsli3.ox_id; | |
4468 | ||
12265f68 JS |
4469 | /* Xmit ECHO ACC response tag <ulpIoTag> */ |
4470 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
4471 | "2876 Xmit ECHO ACC response tag x%x xri x%x\n", | |
4472 | elsiocb->iotag, elsiocb->iocb.ulpContext); | |
4473 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
4474 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
4475 | pcmd += sizeof(uint32_t); | |
4476 | memcpy(pcmd, data, cmdsize - sizeof(uint32_t)); | |
4477 | ||
4478 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
4479 | "Issue ACC ECHO: did:x%x flg:x%x", | |
4480 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
4481 | ||
4482 | phba->fc_stat.elsXmitACC++; | |
4483 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; | |
12265f68 JS |
4484 | |
4485 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); | |
4486 | if (rc == IOCB_ERROR) { | |
4487 | lpfc_els_free_iocb(phba, elsiocb); | |
4488 | return 1; | |
4489 | } | |
4490 | return 0; | |
4491 | } | |
4492 | ||
e59058c4 | 4493 | /** |
3621a710 | 4494 | * lpfc_els_disc_adisc - Issue remaining adisc iocbs to npr nodes of a vport |
e59058c4 JS |
4495 | * @vport: pointer to a host virtual N_Port data structure. |
4496 | * | |
4497 | * This routine issues Address Discover (ADISC) ELS commands to those | |
4498 | * N_Ports which are in node port recovery state and ADISC has not been issued | |
4499 | * for the @vport. Each time an ELS ADISC IOCB is issued by invoking the | |
4500 | * lpfc_issue_els_adisc() routine, the per @vport number of discover count | |
4501 | * (num_disc_nodes) shall be incremented. If the num_disc_nodes reaches a | |
4502 | * pre-configured threshold (cfg_discovery_threads), the @vport fc_flag will | |
4503 | * be marked with FC_NLP_MORE bit and the process of issuing remaining ADISC | |
4504 | * IOCBs quit for later pick up. On the other hand, after walking through | |
4505 | * all the ndlps with the @vport and there is none ADISC IOCB issued, the | |
4506 | * @vport fc_flag shall be cleared with FC_NLP_MORE bit indicating there is | |
4507 | * no more ADISC need to be sent. | |
4508 | * | |
4509 | * Return code | |
4510 | * The number of N_Ports with adisc issued. | |
4511 | **/ | |
dea3101e | 4512 | int |
2e0fef85 | 4513 | lpfc_els_disc_adisc(struct lpfc_vport *vport) |
dea3101e | 4514 | { |
2e0fef85 | 4515 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
dea3101e | 4516 | struct lpfc_nodelist *ndlp, *next_ndlp; |
2e0fef85 | 4517 | int sentadisc = 0; |
dea3101e | 4518 | |
685f0bf7 | 4519 | /* go thru NPR nodes and issue any remaining ELS ADISCs */ |
2e0fef85 | 4520 | list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { |
e47c9093 JS |
4521 | if (!NLP_CHK_NODE_ACT(ndlp)) |
4522 | continue; | |
685f0bf7 JS |
4523 | if (ndlp->nlp_state == NLP_STE_NPR_NODE && |
4524 | (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 && | |
4525 | (ndlp->nlp_flag & NLP_NPR_ADISC) != 0) { | |
2e0fef85 | 4526 | spin_lock_irq(shost->host_lock); |
685f0bf7 | 4527 | ndlp->nlp_flag &= ~NLP_NPR_ADISC; |
2e0fef85 | 4528 | spin_unlock_irq(shost->host_lock); |
685f0bf7 | 4529 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 JS |
4530 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); |
4531 | lpfc_issue_els_adisc(vport, ndlp, 0); | |
685f0bf7 | 4532 | sentadisc++; |
2e0fef85 JS |
4533 | vport->num_disc_nodes++; |
4534 | if (vport->num_disc_nodes >= | |
3de2a653 | 4535 | vport->cfg_discovery_threads) { |
2e0fef85 JS |
4536 | spin_lock_irq(shost->host_lock); |
4537 | vport->fc_flag |= FC_NLP_MORE; | |
4538 | spin_unlock_irq(shost->host_lock); | |
685f0bf7 | 4539 | break; |
dea3101e | 4540 | } |
4541 | } | |
4542 | } | |
4543 | if (sentadisc == 0) { | |
2e0fef85 JS |
4544 | spin_lock_irq(shost->host_lock); |
4545 | vport->fc_flag &= ~FC_NLP_MORE; | |
4546 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 4547 | } |
2fe165b6 | 4548 | return sentadisc; |
dea3101e | 4549 | } |
4550 | ||
e59058c4 | 4551 | /** |
3621a710 | 4552 | * lpfc_els_disc_plogi - Issue plogi for all npr nodes of a vport before adisc |
e59058c4 JS |
4553 | * @vport: pointer to a host virtual N_Port data structure. |
4554 | * | |
4555 | * This routine issues Port Login (PLOGI) ELS commands to all the N_Ports | |
4556 | * which are in node port recovery state, with a @vport. Each time an ELS | |
4557 | * ADISC PLOGI IOCB is issued by invoking the lpfc_issue_els_plogi() routine, | |
4558 | * the per @vport number of discover count (num_disc_nodes) shall be | |
4559 | * incremented. If the num_disc_nodes reaches a pre-configured threshold | |
4560 | * (cfg_discovery_threads), the @vport fc_flag will be marked with FC_NLP_MORE | |
4561 | * bit set and quit the process of issuing remaining ADISC PLOGIN IOCBs for | |
4562 | * later pick up. On the other hand, after walking through all the ndlps with | |
4563 | * the @vport and there is none ADISC PLOGI IOCB issued, the @vport fc_flag | |
4564 | * shall be cleared with the FC_NLP_MORE bit indicating there is no more ADISC | |
4565 | * PLOGI need to be sent. | |
4566 | * | |
4567 | * Return code | |
4568 | * The number of N_Ports with plogi issued. | |
4569 | **/ | |
dea3101e | 4570 | int |
2e0fef85 | 4571 | lpfc_els_disc_plogi(struct lpfc_vport *vport) |
dea3101e | 4572 | { |
2e0fef85 | 4573 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
dea3101e | 4574 | struct lpfc_nodelist *ndlp, *next_ndlp; |
2e0fef85 | 4575 | int sentplogi = 0; |
dea3101e | 4576 | |
2e0fef85 JS |
4577 | /* go thru NPR nodes and issue any remaining ELS PLOGIs */ |
4578 | list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { | |
e47c9093 JS |
4579 | if (!NLP_CHK_NODE_ACT(ndlp)) |
4580 | continue; | |
685f0bf7 JS |
4581 | if (ndlp->nlp_state == NLP_STE_NPR_NODE && |
4582 | (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 && | |
4583 | (ndlp->nlp_flag & NLP_DELAY_TMO) == 0 && | |
4584 | (ndlp->nlp_flag & NLP_NPR_ADISC) == 0) { | |
4585 | ndlp->nlp_prev_state = ndlp->nlp_state; | |
2e0fef85 JS |
4586 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); |
4587 | lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); | |
685f0bf7 | 4588 | sentplogi++; |
2e0fef85 JS |
4589 | vport->num_disc_nodes++; |
4590 | if (vport->num_disc_nodes >= | |
3de2a653 | 4591 | vport->cfg_discovery_threads) { |
2e0fef85 JS |
4592 | spin_lock_irq(shost->host_lock); |
4593 | vport->fc_flag |= FC_NLP_MORE; | |
4594 | spin_unlock_irq(shost->host_lock); | |
685f0bf7 | 4595 | break; |
dea3101e | 4596 | } |
4597 | } | |
4598 | } | |
87af33fe JS |
4599 | if (sentplogi) { |
4600 | lpfc_set_disctmo(vport); | |
4601 | } | |
4602 | else { | |
2e0fef85 JS |
4603 | spin_lock_irq(shost->host_lock); |
4604 | vport->fc_flag &= ~FC_NLP_MORE; | |
4605 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 4606 | } |
2fe165b6 | 4607 | return sentplogi; |
dea3101e | 4608 | } |
4609 | ||
e59058c4 | 4610 | /** |
3621a710 | 4611 | * lpfc_els_flush_rscn - Clean up any rscn activities with a vport |
e59058c4 JS |
4612 | * @vport: pointer to a host virtual N_Port data structure. |
4613 | * | |
4614 | * This routine cleans up any Registration State Change Notification | |
4615 | * (RSCN) activity with a @vport. Note that the fc_rscn_flush flag of the | |
4616 | * @vport together with the host_lock is used to prevent multiple thread | |
4617 | * trying to access the RSCN array on a same @vport at the same time. | |
4618 | **/ | |
92d7f7b0 | 4619 | void |
2e0fef85 | 4620 | lpfc_els_flush_rscn(struct lpfc_vport *vport) |
dea3101e | 4621 | { |
2e0fef85 JS |
4622 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
4623 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 4624 | int i; |
4625 | ||
7f5f3d0d JS |
4626 | spin_lock_irq(shost->host_lock); |
4627 | if (vport->fc_rscn_flush) { | |
4628 | /* Another thread is walking fc_rscn_id_list on this vport */ | |
4629 | spin_unlock_irq(shost->host_lock); | |
4630 | return; | |
4631 | } | |
4632 | /* Indicate we are walking lpfc_els_flush_rscn on this vport */ | |
4633 | vport->fc_rscn_flush = 1; | |
4634 | spin_unlock_irq(shost->host_lock); | |
4635 | ||
2e0fef85 | 4636 | for (i = 0; i < vport->fc_rscn_id_cnt; i++) { |
92d7f7b0 | 4637 | lpfc_in_buf_free(phba, vport->fc_rscn_id_list[i]); |
2e0fef85 | 4638 | vport->fc_rscn_id_list[i] = NULL; |
dea3101e | 4639 | } |
2e0fef85 JS |
4640 | spin_lock_irq(shost->host_lock); |
4641 | vport->fc_rscn_id_cnt = 0; | |
4642 | vport->fc_flag &= ~(FC_RSCN_MODE | FC_RSCN_DISCOVERY); | |
4643 | spin_unlock_irq(shost->host_lock); | |
4644 | lpfc_can_disctmo(vport); | |
7f5f3d0d JS |
4645 | /* Indicate we are done walking this fc_rscn_id_list */ |
4646 | vport->fc_rscn_flush = 0; | |
dea3101e | 4647 | } |
4648 | ||
e59058c4 | 4649 | /** |
3621a710 | 4650 | * lpfc_rscn_payload_check - Check whether there is a pending rscn to a did |
e59058c4 JS |
4651 | * @vport: pointer to a host virtual N_Port data structure. |
4652 | * @did: remote destination port identifier. | |
4653 | * | |
4654 | * This routine checks whether there is any pending Registration State | |
4655 | * Configuration Notification (RSCN) to a @did on @vport. | |
4656 | * | |
4657 | * Return code | |
4658 | * None zero - The @did matched with a pending rscn | |
4659 | * 0 - not able to match @did with a pending rscn | |
4660 | **/ | |
dea3101e | 4661 | int |
2e0fef85 | 4662 | lpfc_rscn_payload_check(struct lpfc_vport *vport, uint32_t did) |
dea3101e | 4663 | { |
4664 | D_ID ns_did; | |
4665 | D_ID rscn_did; | |
dea3101e | 4666 | uint32_t *lp; |
92d7f7b0 | 4667 | uint32_t payload_len, i; |
7f5f3d0d | 4668 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
dea3101e | 4669 | |
4670 | ns_did.un.word = did; | |
dea3101e | 4671 | |
4672 | /* Never match fabric nodes for RSCNs */ | |
4673 | if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) | |
2e0fef85 | 4674 | return 0; |
dea3101e | 4675 | |
4676 | /* If we are doing a FULL RSCN rediscovery, match everything */ | |
2e0fef85 | 4677 | if (vport->fc_flag & FC_RSCN_DISCOVERY) |
c9f8735b | 4678 | return did; |
dea3101e | 4679 | |
7f5f3d0d JS |
4680 | spin_lock_irq(shost->host_lock); |
4681 | if (vport->fc_rscn_flush) { | |
4682 | /* Another thread is walking fc_rscn_id_list on this vport */ | |
4683 | spin_unlock_irq(shost->host_lock); | |
4684 | return 0; | |
4685 | } | |
4686 | /* Indicate we are walking fc_rscn_id_list on this vport */ | |
4687 | vport->fc_rscn_flush = 1; | |
4688 | spin_unlock_irq(shost->host_lock); | |
2e0fef85 | 4689 | for (i = 0; i < vport->fc_rscn_id_cnt; i++) { |
92d7f7b0 JS |
4690 | lp = vport->fc_rscn_id_list[i]->virt; |
4691 | payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK); | |
4692 | payload_len -= sizeof(uint32_t); /* take off word 0 */ | |
dea3101e | 4693 | while (payload_len) { |
92d7f7b0 JS |
4694 | rscn_did.un.word = be32_to_cpu(*lp++); |
4695 | payload_len -= sizeof(uint32_t); | |
eaf15d5b JS |
4696 | switch (rscn_did.un.b.resv & RSCN_ADDRESS_FORMAT_MASK) { |
4697 | case RSCN_ADDRESS_FORMAT_PORT: | |
6fb120a7 JS |
4698 | if ((ns_did.un.b.domain == rscn_did.un.b.domain) |
4699 | && (ns_did.un.b.area == rscn_did.un.b.area) | |
4700 | && (ns_did.un.b.id == rscn_did.un.b.id)) | |
7f5f3d0d | 4701 | goto return_did_out; |
dea3101e | 4702 | break; |
eaf15d5b | 4703 | case RSCN_ADDRESS_FORMAT_AREA: |
dea3101e | 4704 | if ((ns_did.un.b.domain == rscn_did.un.b.domain) |
4705 | && (ns_did.un.b.area == rscn_did.un.b.area)) | |
7f5f3d0d | 4706 | goto return_did_out; |
dea3101e | 4707 | break; |
eaf15d5b | 4708 | case RSCN_ADDRESS_FORMAT_DOMAIN: |
dea3101e | 4709 | if (ns_did.un.b.domain == rscn_did.un.b.domain) |
7f5f3d0d | 4710 | goto return_did_out; |
dea3101e | 4711 | break; |
eaf15d5b | 4712 | case RSCN_ADDRESS_FORMAT_FABRIC: |
7f5f3d0d | 4713 | goto return_did_out; |
dea3101e | 4714 | } |
4715 | } | |
92d7f7b0 | 4716 | } |
7f5f3d0d JS |
4717 | /* Indicate we are done with walking fc_rscn_id_list on this vport */ |
4718 | vport->fc_rscn_flush = 0; | |
92d7f7b0 | 4719 | return 0; |
7f5f3d0d JS |
4720 | return_did_out: |
4721 | /* Indicate we are done with walking fc_rscn_id_list on this vport */ | |
4722 | vport->fc_rscn_flush = 0; | |
4723 | return did; | |
dea3101e | 4724 | } |
4725 | ||
e59058c4 | 4726 | /** |
3621a710 | 4727 | * lpfc_rscn_recovery_check - Send recovery event to vport nodes matching rscn |
e59058c4 JS |
4728 | * @vport: pointer to a host virtual N_Port data structure. |
4729 | * | |
4730 | * This routine sends recovery (NLP_EVT_DEVICE_RECOVERY) event to the | |
4731 | * state machine for a @vport's nodes that are with pending RSCN (Registration | |
4732 | * State Change Notification). | |
4733 | * | |
4734 | * Return code | |
4735 | * 0 - Successful (currently alway return 0) | |
4736 | **/ | |
dea3101e | 4737 | static int |
2e0fef85 | 4738 | lpfc_rscn_recovery_check(struct lpfc_vport *vport) |
dea3101e | 4739 | { |
685f0bf7 | 4740 | struct lpfc_nodelist *ndlp = NULL; |
dea3101e | 4741 | |
0d2b6b83 | 4742 | /* Move all affected nodes by pending RSCNs to NPR state. */ |
2e0fef85 | 4743 | list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { |
e47c9093 | 4744 | if (!NLP_CHK_NODE_ACT(ndlp) || |
0d2b6b83 JS |
4745 | (ndlp->nlp_state == NLP_STE_UNUSED_NODE) || |
4746 | !lpfc_rscn_payload_check(vport, ndlp->nlp_DID)) | |
685f0bf7 | 4747 | continue; |
2e0fef85 | 4748 | lpfc_disc_state_machine(vport, ndlp, NULL, |
0d2b6b83 JS |
4749 | NLP_EVT_DEVICE_RECOVERY); |
4750 | lpfc_cancel_retry_delay_tmo(vport, ndlp); | |
dea3101e | 4751 | } |
c9f8735b | 4752 | return 0; |
dea3101e | 4753 | } |
4754 | ||
ddcc50f0 | 4755 | /** |
3621a710 | 4756 | * lpfc_send_rscn_event - Send an RSCN event to management application |
ddcc50f0 JS |
4757 | * @vport: pointer to a host virtual N_Port data structure. |
4758 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4759 | * | |
4760 | * lpfc_send_rscn_event sends an RSCN netlink event to management | |
4761 | * applications. | |
4762 | */ | |
4763 | static void | |
4764 | lpfc_send_rscn_event(struct lpfc_vport *vport, | |
4765 | struct lpfc_iocbq *cmdiocb) | |
4766 | { | |
4767 | struct lpfc_dmabuf *pcmd; | |
4768 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
4769 | uint32_t *payload_ptr; | |
4770 | uint32_t payload_len; | |
4771 | struct lpfc_rscn_event_header *rscn_event_data; | |
4772 | ||
4773 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
4774 | payload_ptr = (uint32_t *) pcmd->virt; | |
4775 | payload_len = be32_to_cpu(*payload_ptr & ~ELS_CMD_MASK); | |
4776 | ||
4777 | rscn_event_data = kmalloc(sizeof(struct lpfc_rscn_event_header) + | |
4778 | payload_len, GFP_KERNEL); | |
4779 | if (!rscn_event_data) { | |
4780 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
4781 | "0147 Failed to allocate memory for RSCN event\n"); | |
4782 | return; | |
4783 | } | |
4784 | rscn_event_data->event_type = FC_REG_RSCN_EVENT; | |
4785 | rscn_event_data->payload_length = payload_len; | |
4786 | memcpy(rscn_event_data->rscn_payload, payload_ptr, | |
4787 | payload_len); | |
4788 | ||
4789 | fc_host_post_vendor_event(shost, | |
4790 | fc_get_event_number(), | |
4791 | sizeof(struct lpfc_els_event_header) + payload_len, | |
4792 | (char *)rscn_event_data, | |
4793 | LPFC_NL_VENDOR_ID); | |
4794 | ||
4795 | kfree(rscn_event_data); | |
4796 | } | |
4797 | ||
e59058c4 | 4798 | /** |
3621a710 | 4799 | * lpfc_els_rcv_rscn - Process an unsolicited rscn iocb |
e59058c4 JS |
4800 | * @vport: pointer to a host virtual N_Port data structure. |
4801 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4802 | * @ndlp: pointer to a node-list data structure. | |
4803 | * | |
4804 | * This routine processes an unsolicited RSCN (Registration State Change | |
4805 | * Notification) IOCB. First, the payload of the unsolicited RSCN is walked | |
4806 | * to invoke fc_host_post_event() routine to the FC transport layer. If the | |
4807 | * discover state machine is about to begin discovery, it just accepts the | |
4808 | * RSCN and the discovery process will satisfy the RSCN. If this RSCN only | |
4809 | * contains N_Port IDs for other vports on this HBA, it just accepts the | |
4810 | * RSCN and ignore processing it. If the state machine is in the recovery | |
4811 | * state, the fc_rscn_id_list of this @vport is walked and the | |
4812 | * lpfc_rscn_recovery_check() routine is invoked to send recovery event for | |
4813 | * all nodes that match RSCN payload. Otherwise, the lpfc_els_handle_rscn() | |
4814 | * routine is invoked to handle the RSCN event. | |
4815 | * | |
4816 | * Return code | |
4817 | * 0 - Just sent the acc response | |
4818 | * 1 - Sent the acc response and waited for name server completion | |
4819 | **/ | |
dea3101e | 4820 | static int |
2e0fef85 | 4821 | lpfc_els_rcv_rscn(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
51ef4c26 | 4822 | struct lpfc_nodelist *ndlp) |
dea3101e | 4823 | { |
2e0fef85 JS |
4824 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
4825 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 4826 | struct lpfc_dmabuf *pcmd; |
92d7f7b0 | 4827 | uint32_t *lp, *datap; |
dea3101e | 4828 | IOCB_t *icmd; |
92d7f7b0 | 4829 | uint32_t payload_len, length, nportid, *cmd; |
7f5f3d0d | 4830 | int rscn_cnt; |
92d7f7b0 | 4831 | int rscn_id = 0, hba_id = 0; |
d2873e4c | 4832 | int i; |
dea3101e | 4833 | |
4834 | icmd = &cmdiocb->iocb; | |
4835 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
4836 | lp = (uint32_t *) pcmd->virt; | |
4837 | ||
92d7f7b0 JS |
4838 | payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK); |
4839 | payload_len -= sizeof(uint32_t); /* take off word 0 */ | |
dea3101e | 4840 | /* RSCN received */ |
e8b62011 JS |
4841 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
4842 | "0214 RSCN received Data: x%x x%x x%x x%x\n", | |
7f5f3d0d JS |
4843 | vport->fc_flag, payload_len, *lp, |
4844 | vport->fc_rscn_id_cnt); | |
ddcc50f0 JS |
4845 | |
4846 | /* Send an RSCN event to the management application */ | |
4847 | lpfc_send_rscn_event(vport, cmdiocb); | |
4848 | ||
d2873e4c | 4849 | for (i = 0; i < payload_len/sizeof(uint32_t); i++) |
2e0fef85 | 4850 | fc_host_post_event(shost, fc_get_event_number(), |
d2873e4c JS |
4851 | FCH_EVT_RSCN, lp[i]); |
4852 | ||
dea3101e | 4853 | /* If we are about to begin discovery, just ACC the RSCN. |
4854 | * Discovery processing will satisfy it. | |
4855 | */ | |
2e0fef85 | 4856 | if (vport->port_state <= LPFC_NS_QRY) { |
858c9f6c JS |
4857 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
4858 | "RCV RSCN ignore: did:x%x/ste:x%x flg:x%x", | |
4859 | ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); | |
4860 | ||
51ef4c26 | 4861 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
c9f8735b | 4862 | return 0; |
dea3101e | 4863 | } |
4864 | ||
92d7f7b0 JS |
4865 | /* If this RSCN just contains NPortIDs for other vports on this HBA, |
4866 | * just ACC and ignore it. | |
4867 | */ | |
4868 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && | |
3de2a653 | 4869 | !(vport->cfg_peer_port_login)) { |
92d7f7b0 JS |
4870 | i = payload_len; |
4871 | datap = lp; | |
4872 | while (i > 0) { | |
4873 | nportid = *datap++; | |
4874 | nportid = ((be32_to_cpu(nportid)) & Mask_DID); | |
4875 | i -= sizeof(uint32_t); | |
4876 | rscn_id++; | |
549e55cd JS |
4877 | if (lpfc_find_vport_by_did(phba, nportid)) |
4878 | hba_id++; | |
92d7f7b0 JS |
4879 | } |
4880 | if (rscn_id == hba_id) { | |
4881 | /* ALL NPortIDs in RSCN are on HBA */ | |
e8b62011 | 4882 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
d7c255b2 | 4883 | "0219 Ignore RSCN " |
e8b62011 JS |
4884 | "Data: x%x x%x x%x x%x\n", |
4885 | vport->fc_flag, payload_len, | |
7f5f3d0d | 4886 | *lp, vport->fc_rscn_id_cnt); |
858c9f6c JS |
4887 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
4888 | "RCV RSCN vport: did:x%x/ste:x%x flg:x%x", | |
4889 | ndlp->nlp_DID, vport->port_state, | |
4890 | ndlp->nlp_flag); | |
4891 | ||
92d7f7b0 | 4892 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, |
51ef4c26 | 4893 | ndlp, NULL); |
92d7f7b0 JS |
4894 | return 0; |
4895 | } | |
4896 | } | |
4897 | ||
7f5f3d0d JS |
4898 | spin_lock_irq(shost->host_lock); |
4899 | if (vport->fc_rscn_flush) { | |
4900 | /* Another thread is walking fc_rscn_id_list on this vport */ | |
7f5f3d0d | 4901 | vport->fc_flag |= FC_RSCN_DISCOVERY; |
97957244 | 4902 | spin_unlock_irq(shost->host_lock); |
58da1ffb JS |
4903 | /* Send back ACC */ |
4904 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); | |
7f5f3d0d JS |
4905 | return 0; |
4906 | } | |
4907 | /* Indicate we are walking fc_rscn_id_list on this vport */ | |
4908 | vport->fc_rscn_flush = 1; | |
4909 | spin_unlock_irq(shost->host_lock); | |
af901ca1 | 4910 | /* Get the array count after successfully have the token */ |
7f5f3d0d | 4911 | rscn_cnt = vport->fc_rscn_id_cnt; |
dea3101e | 4912 | /* If we are already processing an RSCN, save the received |
4913 | * RSCN payload buffer, cmdiocb->context2 to process later. | |
4914 | */ | |
2e0fef85 | 4915 | if (vport->fc_flag & (FC_RSCN_MODE | FC_NDISC_ACTIVE)) { |
858c9f6c JS |
4916 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
4917 | "RCV RSCN defer: did:x%x/ste:x%x flg:x%x", | |
4918 | ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); | |
4919 | ||
09372820 | 4920 | spin_lock_irq(shost->host_lock); |
92d7f7b0 JS |
4921 | vport->fc_flag |= FC_RSCN_DEFERRED; |
4922 | if ((rscn_cnt < FC_MAX_HOLD_RSCN) && | |
2e0fef85 | 4923 | !(vport->fc_flag & FC_RSCN_DISCOVERY)) { |
2e0fef85 JS |
4924 | vport->fc_flag |= FC_RSCN_MODE; |
4925 | spin_unlock_irq(shost->host_lock); | |
92d7f7b0 JS |
4926 | if (rscn_cnt) { |
4927 | cmd = vport->fc_rscn_id_list[rscn_cnt-1]->virt; | |
4928 | length = be32_to_cpu(*cmd & ~ELS_CMD_MASK); | |
4929 | } | |
4930 | if ((rscn_cnt) && | |
4931 | (payload_len + length <= LPFC_BPL_SIZE)) { | |
4932 | *cmd &= ELS_CMD_MASK; | |
7f5f3d0d | 4933 | *cmd |= cpu_to_be32(payload_len + length); |
92d7f7b0 JS |
4934 | memcpy(((uint8_t *)cmd) + length, lp, |
4935 | payload_len); | |
4936 | } else { | |
4937 | vport->fc_rscn_id_list[rscn_cnt] = pcmd; | |
4938 | vport->fc_rscn_id_cnt++; | |
4939 | /* If we zero, cmdiocb->context2, the calling | |
4940 | * routine will not try to free it. | |
4941 | */ | |
4942 | cmdiocb->context2 = NULL; | |
4943 | } | |
dea3101e | 4944 | /* Deferred RSCN */ |
e8b62011 JS |
4945 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
4946 | "0235 Deferred RSCN " | |
4947 | "Data: x%x x%x x%x\n", | |
4948 | vport->fc_rscn_id_cnt, vport->fc_flag, | |
4949 | vport->port_state); | |
dea3101e | 4950 | } else { |
2e0fef85 JS |
4951 | vport->fc_flag |= FC_RSCN_DISCOVERY; |
4952 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 4953 | /* ReDiscovery RSCN */ |
e8b62011 JS |
4954 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
4955 | "0234 ReDiscovery RSCN " | |
4956 | "Data: x%x x%x x%x\n", | |
4957 | vport->fc_rscn_id_cnt, vport->fc_flag, | |
4958 | vport->port_state); | |
dea3101e | 4959 | } |
7f5f3d0d JS |
4960 | /* Indicate we are done walking fc_rscn_id_list on this vport */ |
4961 | vport->fc_rscn_flush = 0; | |
dea3101e | 4962 | /* Send back ACC */ |
51ef4c26 | 4963 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
dea3101e | 4964 | /* send RECOVERY event for ALL nodes that match RSCN payload */ |
2e0fef85 | 4965 | lpfc_rscn_recovery_check(vport); |
09372820 | 4966 | spin_lock_irq(shost->host_lock); |
92d7f7b0 | 4967 | vport->fc_flag &= ~FC_RSCN_DEFERRED; |
09372820 | 4968 | spin_unlock_irq(shost->host_lock); |
c9f8735b | 4969 | return 0; |
dea3101e | 4970 | } |
858c9f6c JS |
4971 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
4972 | "RCV RSCN: did:x%x/ste:x%x flg:x%x", | |
4973 | ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); | |
4974 | ||
2e0fef85 JS |
4975 | spin_lock_irq(shost->host_lock); |
4976 | vport->fc_flag |= FC_RSCN_MODE; | |
4977 | spin_unlock_irq(shost->host_lock); | |
4978 | vport->fc_rscn_id_list[vport->fc_rscn_id_cnt++] = pcmd; | |
7f5f3d0d JS |
4979 | /* Indicate we are done walking fc_rscn_id_list on this vport */ |
4980 | vport->fc_rscn_flush = 0; | |
dea3101e | 4981 | /* |
4982 | * If we zero, cmdiocb->context2, the calling routine will | |
4983 | * not try to free it. | |
4984 | */ | |
4985 | cmdiocb->context2 = NULL; | |
2e0fef85 | 4986 | lpfc_set_disctmo(vport); |
dea3101e | 4987 | /* Send back ACC */ |
51ef4c26 | 4988 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
dea3101e | 4989 | /* send RECOVERY event for ALL nodes that match RSCN payload */ |
2e0fef85 | 4990 | lpfc_rscn_recovery_check(vport); |
2e0fef85 | 4991 | return lpfc_els_handle_rscn(vport); |
dea3101e | 4992 | } |
4993 | ||
e59058c4 | 4994 | /** |
3621a710 | 4995 | * lpfc_els_handle_rscn - Handle rscn for a vport |
e59058c4 JS |
4996 | * @vport: pointer to a host virtual N_Port data structure. |
4997 | * | |
4998 | * This routine handles the Registration State Configuration Notification | |
4999 | * (RSCN) for a @vport. If login to NameServer does not exist, a new ndlp shall | |
5000 | * be created and a Port Login (PLOGI) to the NameServer is issued. Otherwise, | |
5001 | * if the ndlp to NameServer exists, a Common Transport (CT) command to the | |
5002 | * NameServer shall be issued. If CT command to the NameServer fails to be | |
5003 | * issued, the lpfc_els_flush_rscn() routine shall be invoked to clean up any | |
5004 | * RSCN activities with the @vport. | |
5005 | * | |
5006 | * Return code | |
5007 | * 0 - Cleaned up rscn on the @vport | |
5008 | * 1 - Wait for plogi to name server before proceed | |
5009 | **/ | |
dea3101e | 5010 | int |
2e0fef85 | 5011 | lpfc_els_handle_rscn(struct lpfc_vport *vport) |
dea3101e | 5012 | { |
5013 | struct lpfc_nodelist *ndlp; | |
2e0fef85 | 5014 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 5015 | |
92d7f7b0 JS |
5016 | /* Ignore RSCN if the port is being torn down. */ |
5017 | if (vport->load_flag & FC_UNLOADING) { | |
5018 | lpfc_els_flush_rscn(vport); | |
5019 | return 0; | |
5020 | } | |
5021 | ||
dea3101e | 5022 | /* Start timer for RSCN processing */ |
2e0fef85 | 5023 | lpfc_set_disctmo(vport); |
dea3101e | 5024 | |
5025 | /* RSCN processed */ | |
e8b62011 JS |
5026 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
5027 | "0215 RSCN processed Data: x%x x%x x%x x%x\n", | |
5028 | vport->fc_flag, 0, vport->fc_rscn_id_cnt, | |
5029 | vport->port_state); | |
dea3101e | 5030 | |
5031 | /* To process RSCN, first compare RSCN data with NameServer */ | |
2e0fef85 | 5032 | vport->fc_ns_retry = 0; |
0ff10d46 JS |
5033 | vport->num_disc_nodes = 0; |
5034 | ||
2e0fef85 | 5035 | ndlp = lpfc_findnode_did(vport, NameServer_DID); |
e47c9093 JS |
5036 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) |
5037 | && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) { | |
dea3101e | 5038 | /* Good ndlp, issue CT Request to NameServer */ |
92d7f7b0 | 5039 | if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0) == 0) |
dea3101e | 5040 | /* Wait for NameServer query cmpl before we can |
5041 | continue */ | |
c9f8735b | 5042 | return 1; |
dea3101e | 5043 | } else { |
5044 | /* If login to NameServer does not exist, issue one */ | |
5045 | /* Good status, issue PLOGI to NameServer */ | |
2e0fef85 | 5046 | ndlp = lpfc_findnode_did(vport, NameServer_DID); |
e47c9093 | 5047 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) |
dea3101e | 5048 | /* Wait for NameServer login cmpl before we can |
5049 | continue */ | |
c9f8735b | 5050 | return 1; |
2e0fef85 | 5051 | |
e47c9093 JS |
5052 | if (ndlp) { |
5053 | ndlp = lpfc_enable_node(vport, ndlp, | |
5054 | NLP_STE_PLOGI_ISSUE); | |
5055 | if (!ndlp) { | |
5056 | lpfc_els_flush_rscn(vport); | |
5057 | return 0; | |
5058 | } | |
5059 | ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE; | |
dea3101e | 5060 | } else { |
e47c9093 JS |
5061 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); |
5062 | if (!ndlp) { | |
5063 | lpfc_els_flush_rscn(vport); | |
5064 | return 0; | |
5065 | } | |
2e0fef85 | 5066 | lpfc_nlp_init(vport, ndlp, NameServer_DID); |
5024ab17 | 5067 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 5068 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); |
dea3101e | 5069 | } |
e47c9093 JS |
5070 | ndlp->nlp_type |= NLP_FABRIC; |
5071 | lpfc_issue_els_plogi(vport, NameServer_DID, 0); | |
5072 | /* Wait for NameServer login cmpl before we can | |
5073 | * continue | |
5074 | */ | |
5075 | return 1; | |
dea3101e | 5076 | } |
5077 | ||
2e0fef85 | 5078 | lpfc_els_flush_rscn(vport); |
c9f8735b | 5079 | return 0; |
dea3101e | 5080 | } |
5081 | ||
e59058c4 | 5082 | /** |
3621a710 | 5083 | * lpfc_els_rcv_flogi - Process an unsolicited flogi iocb |
e59058c4 JS |
5084 | * @vport: pointer to a host virtual N_Port data structure. |
5085 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5086 | * @ndlp: pointer to a node-list data structure. | |
5087 | * | |
5088 | * This routine processes Fabric Login (FLOGI) IOCB received as an ELS | |
5089 | * unsolicited event. An unsolicited FLOGI can be received in a point-to- | |
5090 | * point topology. As an unsolicited FLOGI should not be received in a loop | |
5091 | * mode, any unsolicited FLOGI received in loop mode shall be ignored. The | |
5092 | * lpfc_check_sparm() routine is invoked to check the parameters in the | |
5093 | * unsolicited FLOGI. If parameters validation failed, the routine | |
5094 | * lpfc_els_rsp_reject() shall be called with reject reason code set to | |
5095 | * LSEXP_SPARM_OPTIONS to reject the FLOGI. Otherwise, the Port WWN in the | |
5096 | * FLOGI shall be compared with the Port WWN of the @vport to determine who | |
5097 | * will initiate PLOGI. The higher lexicographical value party shall has | |
5098 | * higher priority (as the winning port) and will initiate PLOGI and | |
5099 | * communicate Port_IDs (Addresses) for both nodes in PLOGI. The result | |
5100 | * of this will be marked in the @vport fc_flag field with FC_PT2PT_PLOGI | |
5101 | * and then the lpfc_els_rsp_acc() routine is invoked to accept the FLOGI. | |
5102 | * | |
5103 | * Return code | |
5104 | * 0 - Successfully processed the unsolicited flogi | |
5105 | * 1 - Failed to process the unsolicited flogi | |
5106 | **/ | |
dea3101e | 5107 | static int |
2e0fef85 | 5108 | lpfc_els_rcv_flogi(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
51ef4c26 | 5109 | struct lpfc_nodelist *ndlp) |
dea3101e | 5110 | { |
2e0fef85 JS |
5111 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
5112 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 5113 | struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; |
5114 | uint32_t *lp = (uint32_t *) pcmd->virt; | |
5115 | IOCB_t *icmd = &cmdiocb->iocb; | |
5116 | struct serv_parm *sp; | |
5117 | LPFC_MBOXQ_t *mbox; | |
5118 | struct ls_rjt stat; | |
5119 | uint32_t cmd, did; | |
5120 | int rc; | |
e74c03c8 JS |
5121 | uint32_t fc_flag = 0; |
5122 | uint32_t port_state = 0; | |
dea3101e | 5123 | |
5124 | cmd = *lp++; | |
5125 | sp = (struct serv_parm *) lp; | |
5126 | ||
5127 | /* FLOGI received */ | |
5128 | ||
2e0fef85 | 5129 | lpfc_set_disctmo(vport); |
dea3101e | 5130 | |
76a95d75 | 5131 | if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { |
dea3101e | 5132 | /* We should never receive a FLOGI in loop mode, ignore it */ |
5133 | did = icmd->un.elsreq64.remoteID; | |
5134 | ||
5135 | /* An FLOGI ELS command <elsCmd> was received from DID <did> in | |
5136 | Loop Mode */ | |
e8b62011 JS |
5137 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
5138 | "0113 An FLOGI ELS command x%x was " | |
5139 | "received from DID x%x in Loop Mode\n", | |
5140 | cmd, did); | |
c9f8735b | 5141 | return 1; |
dea3101e | 5142 | } |
5143 | ||
341af102 | 5144 | if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3, 1))) { |
dea3101e | 5145 | /* For a FLOGI we accept, then if our portname is greater |
5146 | * then the remote portname we initiate Nport login. | |
5147 | */ | |
5148 | ||
2e0fef85 | 5149 | rc = memcmp(&vport->fc_portname, &sp->portName, |
92d7f7b0 | 5150 | sizeof(struct lpfc_name)); |
dea3101e | 5151 | |
5152 | if (!rc) { | |
1b51197d JS |
5153 | if (phba->sli_rev < LPFC_SLI_REV4) { |
5154 | mbox = mempool_alloc(phba->mbox_mem_pool, | |
5155 | GFP_KERNEL); | |
5156 | if (!mbox) | |
5157 | return 1; | |
5158 | lpfc_linkdown(phba); | |
5159 | lpfc_init_link(phba, mbox, | |
5160 | phba->cfg_topology, | |
5161 | phba->cfg_link_speed); | |
5162 | mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; | |
5163 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
5164 | mbox->vport = vport; | |
5165 | rc = lpfc_sli_issue_mbox(phba, mbox, | |
5166 | MBX_NOWAIT); | |
5167 | lpfc_set_loopback_flag(phba); | |
5168 | if (rc == MBX_NOT_FINISHED) | |
5169 | mempool_free(mbox, phba->mbox_mem_pool); | |
c9f8735b | 5170 | return 1; |
1b51197d JS |
5171 | } else { |
5172 | /* abort the flogi coming back to ourselves | |
5173 | * due to external loopback on the port. | |
5174 | */ | |
5175 | lpfc_els_abort_flogi(phba); | |
5176 | return 0; | |
dea3101e | 5177 | } |
2fe165b6 | 5178 | } else if (rc > 0) { /* greater than */ |
2e0fef85 JS |
5179 | spin_lock_irq(shost->host_lock); |
5180 | vport->fc_flag |= FC_PT2PT_PLOGI; | |
5181 | spin_unlock_irq(shost->host_lock); | |
939723a4 JS |
5182 | |
5183 | /* If we have the high WWPN we can assign our own | |
5184 | * myDID; otherwise, we have to WAIT for a PLOGI | |
5185 | * from the remote NPort to find out what it | |
5186 | * will be. | |
5187 | */ | |
e6446439 | 5188 | vport->fc_myDID = PT2PT_LocalID; |
e74c03c8 JS |
5189 | } else |
5190 | vport->fc_myDID = PT2PT_RemoteID; | |
939723a4 JS |
5191 | |
5192 | /* | |
5193 | * The vport state should go to LPFC_FLOGI only | |
5194 | * AFTER we issue a FLOGI, not receive one. | |
5195 | */ | |
2e0fef85 | 5196 | spin_lock_irq(shost->host_lock); |
e74c03c8 JS |
5197 | fc_flag = vport->fc_flag; |
5198 | port_state = vport->port_state; | |
2e0fef85 JS |
5199 | vport->fc_flag |= FC_PT2PT; |
5200 | vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
e74c03c8 | 5201 | vport->port_state = LPFC_FLOGI; |
2e0fef85 | 5202 | spin_unlock_irq(shost->host_lock); |
e74c03c8 JS |
5203 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
5204 | "3311 Rcv Flogi PS x%x new PS x%x " | |
5205 | "fc_flag x%x new fc_flag x%x\n", | |
5206 | port_state, vport->port_state, | |
5207 | fc_flag, vport->fc_flag); | |
939723a4 JS |
5208 | |
5209 | /* | |
5210 | * We temporarily set fc_myDID to make it look like we are | |
5211 | * a Fabric. This is done just so we end up with the right | |
5212 | * did / sid on the FLOGI ACC rsp. | |
5213 | */ | |
5214 | did = vport->fc_myDID; | |
5215 | vport->fc_myDID = Fabric_DID; | |
5216 | ||
dea3101e | 5217 | } else { |
5218 | /* Reject this request because invalid parameters */ | |
5219 | stat.un.b.lsRjtRsvd0 = 0; | |
5220 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
5221 | stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; | |
5222 | stat.un.b.vendorUnique = 0; | |
939723a4 JS |
5223 | |
5224 | /* | |
5225 | * We temporarily set fc_myDID to make it look like we are | |
5226 | * a Fabric. This is done just so we end up with the right | |
5227 | * did / sid on the FLOGI LS_RJT rsp. | |
5228 | */ | |
5229 | did = vport->fc_myDID; | |
5230 | vport->fc_myDID = Fabric_DID; | |
5231 | ||
858c9f6c JS |
5232 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, |
5233 | NULL); | |
939723a4 JS |
5234 | |
5235 | /* Now lets put fc_myDID back to what its supposed to be */ | |
5236 | vport->fc_myDID = did; | |
5237 | ||
c9f8735b | 5238 | return 1; |
dea3101e | 5239 | } |
5240 | ||
5241 | /* Send back ACC */ | |
51ef4c26 | 5242 | lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL); |
dea3101e | 5243 | |
939723a4 JS |
5244 | /* Now lets put fc_myDID back to what its supposed to be */ |
5245 | vport->fc_myDID = did; | |
5246 | ||
e6446439 | 5247 | if (!(vport->fc_flag & FC_PT2PT_PLOGI)) { |
939723a4 | 5248 | |
e6446439 JS |
5249 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
5250 | if (!mbox) | |
5251 | goto fail; | |
5252 | ||
5253 | lpfc_config_link(phba, mbox); | |
5254 | ||
5255 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
5256 | mbox->vport = vport; | |
5257 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); | |
5258 | if (rc == MBX_NOT_FINISHED) { | |
5259 | mempool_free(mbox, phba->mbox_mem_pool); | |
5260 | goto fail; | |
5261 | } | |
5262 | } | |
5263 | ||
c9f8735b | 5264 | return 0; |
e6446439 JS |
5265 | fail: |
5266 | return 1; | |
dea3101e | 5267 | } |
5268 | ||
e59058c4 | 5269 | /** |
3621a710 | 5270 | * lpfc_els_rcv_rnid - Process an unsolicited rnid iocb |
e59058c4 JS |
5271 | * @vport: pointer to a host virtual N_Port data structure. |
5272 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5273 | * @ndlp: pointer to a node-list data structure. | |
5274 | * | |
5275 | * This routine processes Request Node Identification Data (RNID) IOCB | |
5276 | * received as an ELS unsolicited event. Only when the RNID specified format | |
5277 | * 0x0 or 0xDF (Topology Discovery Specific Node Identification Data) | |
5278 | * present, this routine will invoke the lpfc_els_rsp_rnid_acc() routine to | |
5279 | * Accept (ACC) the RNID ELS command. All the other RNID formats are | |
5280 | * rejected by invoking the lpfc_els_rsp_reject() routine. | |
5281 | * | |
5282 | * Return code | |
5283 | * 0 - Successfully processed rnid iocb (currently always return 0) | |
5284 | **/ | |
dea3101e | 5285 | static int |
2e0fef85 JS |
5286 | lpfc_els_rcv_rnid(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
5287 | struct lpfc_nodelist *ndlp) | |
dea3101e | 5288 | { |
5289 | struct lpfc_dmabuf *pcmd; | |
5290 | uint32_t *lp; | |
5291 | IOCB_t *icmd; | |
5292 | RNID *rn; | |
5293 | struct ls_rjt stat; | |
eb016566 | 5294 | uint32_t cmd; |
dea3101e | 5295 | |
5296 | icmd = &cmdiocb->iocb; | |
dea3101e | 5297 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; |
5298 | lp = (uint32_t *) pcmd->virt; | |
5299 | ||
5300 | cmd = *lp++; | |
5301 | rn = (RNID *) lp; | |
5302 | ||
5303 | /* RNID received */ | |
5304 | ||
5305 | switch (rn->Format) { | |
5306 | case 0: | |
5307 | case RNID_TOPOLOGY_DISC: | |
5308 | /* Send back ACC */ | |
2e0fef85 | 5309 | lpfc_els_rsp_rnid_acc(vport, rn->Format, cmdiocb, ndlp); |
dea3101e | 5310 | break; |
5311 | default: | |
5312 | /* Reject this request because format not supported */ | |
5313 | stat.un.b.lsRjtRsvd0 = 0; | |
5314 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
5315 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
5316 | stat.un.b.vendorUnique = 0; | |
858c9f6c JS |
5317 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, |
5318 | NULL); | |
dea3101e | 5319 | } |
c9f8735b | 5320 | return 0; |
dea3101e | 5321 | } |
5322 | ||
12265f68 JS |
5323 | /** |
5324 | * lpfc_els_rcv_echo - Process an unsolicited echo iocb | |
5325 | * @vport: pointer to a host virtual N_Port data structure. | |
5326 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5327 | * @ndlp: pointer to a node-list data structure. | |
5328 | * | |
5329 | * Return code | |
5330 | * 0 - Successfully processed echo iocb (currently always return 0) | |
5331 | **/ | |
5332 | static int | |
5333 | lpfc_els_rcv_echo(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, | |
5334 | struct lpfc_nodelist *ndlp) | |
5335 | { | |
5336 | uint8_t *pcmd; | |
5337 | ||
5338 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt); | |
5339 | ||
5340 | /* skip over first word of echo command to find echo data */ | |
5341 | pcmd += sizeof(uint32_t); | |
5342 | ||
5343 | lpfc_els_rsp_echo_acc(vport, pcmd, cmdiocb, ndlp); | |
5344 | return 0; | |
5345 | } | |
5346 | ||
e59058c4 | 5347 | /** |
3621a710 | 5348 | * lpfc_els_rcv_lirr - Process an unsolicited lirr iocb |
e59058c4 JS |
5349 | * @vport: pointer to a host virtual N_Port data structure. |
5350 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5351 | * @ndlp: pointer to a node-list data structure. | |
5352 | * | |
5353 | * This routine processes a Link Incident Report Registration(LIRR) IOCB | |
5354 | * received as an ELS unsolicited event. Currently, this function just invokes | |
5355 | * the lpfc_els_rsp_reject() routine to reject the LIRR IOCB unconditionally. | |
5356 | * | |
5357 | * Return code | |
5358 | * 0 - Successfully processed lirr iocb (currently always return 0) | |
5359 | **/ | |
dea3101e | 5360 | static int |
2e0fef85 JS |
5361 | lpfc_els_rcv_lirr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
5362 | struct lpfc_nodelist *ndlp) | |
7bb3b137 JW |
5363 | { |
5364 | struct ls_rjt stat; | |
5365 | ||
5366 | /* For now, unconditionally reject this command */ | |
5367 | stat.un.b.lsRjtRsvd0 = 0; | |
5368 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
5369 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
5370 | stat.un.b.vendorUnique = 0; | |
858c9f6c | 5371 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); |
7bb3b137 JW |
5372 | return 0; |
5373 | } | |
5374 | ||
5ffc266e JS |
5375 | /** |
5376 | * lpfc_els_rcv_rrq - Process an unsolicited rrq iocb | |
5377 | * @vport: pointer to a host virtual N_Port data structure. | |
5378 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5379 | * @ndlp: pointer to a node-list data structure. | |
5380 | * | |
5381 | * This routine processes a Reinstate Recovery Qualifier (RRQ) IOCB | |
5382 | * received as an ELS unsolicited event. A request to RRQ shall only | |
5383 | * be accepted if the Originator Nx_Port N_Port_ID or the Responder | |
5384 | * Nx_Port N_Port_ID of the target Exchange is the same as the | |
5385 | * N_Port_ID of the Nx_Port that makes the request. If the RRQ is | |
5386 | * not accepted, an LS_RJT with reason code "Unable to perform | |
5387 | * command request" and reason code explanation "Invalid Originator | |
5388 | * S_ID" shall be returned. For now, we just unconditionally accept | |
5389 | * RRQ from the target. | |
5390 | **/ | |
5391 | static void | |
5392 | lpfc_els_rcv_rrq(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, | |
5393 | struct lpfc_nodelist *ndlp) | |
5394 | { | |
5395 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); | |
19ca7609 JS |
5396 | if (vport->phba->sli_rev == LPFC_SLI_REV4) |
5397 | lpfc_els_clear_rrq(vport, cmdiocb, ndlp); | |
5ffc266e JS |
5398 | } |
5399 | ||
12265f68 JS |
5400 | /** |
5401 | * lpfc_els_rsp_rls_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd | |
5402 | * @phba: pointer to lpfc hba data structure. | |
5403 | * @pmb: pointer to the driver internal queue element for mailbox command. | |
5404 | * | |
5405 | * This routine is the completion callback function for the MBX_READ_LNK_STAT | |
5406 | * mailbox command. This callback function is to actually send the Accept | |
5407 | * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It | |
5408 | * collects the link statistics from the completion of the MBX_READ_LNK_STAT | |
5409 | * mailbox command, constructs the RPS response with the link statistics | |
5410 | * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC | |
5411 | * response to the RPS. | |
5412 | * | |
5413 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
5414 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
5415 | * will be stored into the context1 field of the IOCB for the completion | |
5416 | * callback function to the RPS Accept Response ELS IOCB command. | |
5417 | * | |
5418 | **/ | |
5419 | static void | |
5420 | lpfc_els_rsp_rls_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) | |
5421 | { | |
5422 | MAILBOX_t *mb; | |
5423 | IOCB_t *icmd; | |
5424 | struct RLS_RSP *rls_rsp; | |
5425 | uint8_t *pcmd; | |
5426 | struct lpfc_iocbq *elsiocb; | |
5427 | struct lpfc_nodelist *ndlp; | |
7851fe2c JS |
5428 | uint16_t oxid; |
5429 | uint16_t rxid; | |
12265f68 JS |
5430 | uint32_t cmdsize; |
5431 | ||
5432 | mb = &pmb->u.mb; | |
5433 | ||
5434 | ndlp = (struct lpfc_nodelist *) pmb->context2; | |
7851fe2c JS |
5435 | rxid = (uint16_t) ((unsigned long)(pmb->context1) & 0xffff); |
5436 | oxid = (uint16_t) (((unsigned long)(pmb->context1) >> 16) & 0xffff); | |
12265f68 JS |
5437 | pmb->context1 = NULL; |
5438 | pmb->context2 = NULL; | |
5439 | ||
5440 | if (mb->mbxStatus) { | |
5441 | mempool_free(pmb, phba->mbox_mem_pool); | |
5442 | return; | |
5443 | } | |
5444 | ||
5445 | cmdsize = sizeof(struct RLS_RSP) + sizeof(uint32_t); | |
12265f68 JS |
5446 | elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, |
5447 | lpfc_max_els_tries, ndlp, | |
5448 | ndlp->nlp_DID, ELS_CMD_ACC); | |
5449 | ||
5450 | /* Decrement the ndlp reference count from previous mbox command */ | |
5451 | lpfc_nlp_put(ndlp); | |
5452 | ||
37db57e3 JS |
5453 | if (!elsiocb) { |
5454 | mempool_free(pmb, phba->mbox_mem_pool); | |
12265f68 | 5455 | return; |
37db57e3 | 5456 | } |
12265f68 JS |
5457 | |
5458 | icmd = &elsiocb->iocb; | |
7851fe2c JS |
5459 | icmd->ulpContext = rxid; |
5460 | icmd->unsli3.rcvsli3.ox_id = oxid; | |
12265f68 JS |
5461 | |
5462 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
5463 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
5464 | pcmd += sizeof(uint32_t); /* Skip past command */ | |
5465 | rls_rsp = (struct RLS_RSP *)pcmd; | |
5466 | ||
5467 | rls_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt); | |
5468 | rls_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt); | |
5469 | rls_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt); | |
5470 | rls_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt); | |
5471 | rls_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord); | |
5472 | rls_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt); | |
37db57e3 | 5473 | mempool_free(pmb, phba->mbox_mem_pool); |
12265f68 JS |
5474 | /* Xmit ELS RLS ACC response tag <ulpIoTag> */ |
5475 | lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS, | |
5476 | "2874 Xmit ELS RLS ACC response tag x%x xri x%x, " | |
5477 | "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n", | |
5478 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
5479 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
5480 | ndlp->nlp_rpi); | |
5481 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; | |
5482 | phba->fc_stat.elsXmitACC++; | |
5483 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR) | |
5484 | lpfc_els_free_iocb(phba, elsiocb); | |
5485 | } | |
5486 | ||
e59058c4 | 5487 | /** |
3621a710 | 5488 | * lpfc_els_rsp_rps_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd |
e59058c4 JS |
5489 | * @phba: pointer to lpfc hba data structure. |
5490 | * @pmb: pointer to the driver internal queue element for mailbox command. | |
5491 | * | |
5492 | * This routine is the completion callback function for the MBX_READ_LNK_STAT | |
5493 | * mailbox command. This callback function is to actually send the Accept | |
5494 | * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It | |
5495 | * collects the link statistics from the completion of the MBX_READ_LNK_STAT | |
5496 | * mailbox command, constructs the RPS response with the link statistics | |
5497 | * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC | |
5498 | * response to the RPS. | |
5499 | * | |
5500 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
5501 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
5502 | * will be stored into the context1 field of the IOCB for the completion | |
5503 | * callback function to the RPS Accept Response ELS IOCB command. | |
5504 | * | |
5505 | **/ | |
082c0266 | 5506 | static void |
329f9bc7 | 5507 | lpfc_els_rsp_rps_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) |
7bb3b137 | 5508 | { |
7bb3b137 JW |
5509 | MAILBOX_t *mb; |
5510 | IOCB_t *icmd; | |
5511 | RPS_RSP *rps_rsp; | |
5512 | uint8_t *pcmd; | |
5513 | struct lpfc_iocbq *elsiocb; | |
5514 | struct lpfc_nodelist *ndlp; | |
7851fe2c JS |
5515 | uint16_t status; |
5516 | uint16_t oxid; | |
5517 | uint16_t rxid; | |
7bb3b137 JW |
5518 | uint32_t cmdsize; |
5519 | ||
04c68496 | 5520 | mb = &pmb->u.mb; |
7bb3b137 JW |
5521 | |
5522 | ndlp = (struct lpfc_nodelist *) pmb->context2; | |
7851fe2c JS |
5523 | rxid = (uint16_t) ((unsigned long)(pmb->context1) & 0xffff); |
5524 | oxid = (uint16_t) (((unsigned long)(pmb->context1) >> 16) & 0xffff); | |
041976fb RD |
5525 | pmb->context1 = NULL; |
5526 | pmb->context2 = NULL; | |
7bb3b137 JW |
5527 | |
5528 | if (mb->mbxStatus) { | |
329f9bc7 | 5529 | mempool_free(pmb, phba->mbox_mem_pool); |
7bb3b137 JW |
5530 | return; |
5531 | } | |
5532 | ||
5533 | cmdsize = sizeof(RPS_RSP) + sizeof(uint32_t); | |
329f9bc7 | 5534 | mempool_free(pmb, phba->mbox_mem_pool); |
2e0fef85 JS |
5535 | elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, |
5536 | lpfc_max_els_tries, ndlp, | |
5537 | ndlp->nlp_DID, ELS_CMD_ACC); | |
fa4066b6 JS |
5538 | |
5539 | /* Decrement the ndlp reference count from previous mbox command */ | |
329f9bc7 | 5540 | lpfc_nlp_put(ndlp); |
fa4066b6 | 5541 | |
c9f8735b | 5542 | if (!elsiocb) |
7bb3b137 | 5543 | return; |
7bb3b137 JW |
5544 | |
5545 | icmd = &elsiocb->iocb; | |
7851fe2c JS |
5546 | icmd->ulpContext = rxid; |
5547 | icmd->unsli3.rcvsli3.ox_id = oxid; | |
7bb3b137 JW |
5548 | |
5549 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
5550 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 | 5551 | pcmd += sizeof(uint32_t); /* Skip past command */ |
7bb3b137 JW |
5552 | rps_rsp = (RPS_RSP *)pcmd; |
5553 | ||
76a95d75 | 5554 | if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) |
7bb3b137 JW |
5555 | status = 0x10; |
5556 | else | |
5557 | status = 0x8; | |
2e0fef85 | 5558 | if (phba->pport->fc_flag & FC_FABRIC) |
7bb3b137 JW |
5559 | status |= 0x4; |
5560 | ||
5561 | rps_rsp->rsvd1 = 0; | |
09372820 JS |
5562 | rps_rsp->portStatus = cpu_to_be16(status); |
5563 | rps_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt); | |
5564 | rps_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt); | |
5565 | rps_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt); | |
5566 | rps_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt); | |
5567 | rps_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord); | |
5568 | rps_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt); | |
7bb3b137 | 5569 | /* Xmit ELS RPS ACC response tag <ulpIoTag> */ |
e8b62011 JS |
5570 | lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS, |
5571 | "0118 Xmit ELS RPS ACC response tag x%x xri x%x, " | |
5572 | "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n", | |
5573 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
5574 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
5575 | ndlp->nlp_rpi); | |
858c9f6c | 5576 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
7bb3b137 | 5577 | phba->fc_stat.elsXmitACC++; |
3772a991 | 5578 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR) |
7bb3b137 | 5579 | lpfc_els_free_iocb(phba, elsiocb); |
7bb3b137 JW |
5580 | return; |
5581 | } | |
5582 | ||
e59058c4 | 5583 | /** |
12265f68 JS |
5584 | * lpfc_els_rcv_rls - Process an unsolicited rls iocb |
5585 | * @vport: pointer to a host virtual N_Port data structure. | |
5586 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5587 | * @ndlp: pointer to a node-list data structure. | |
5588 | * | |
5589 | * This routine processes Read Port Status (RPL) IOCB received as an | |
5590 | * ELS unsolicited event. It first checks the remote port state. If the | |
5591 | * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE | |
5592 | * state, it invokes the lpfc_els_rsl_reject() routine to send the reject | |
5593 | * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command | |
5594 | * for reading the HBA link statistics. It is for the callback function, | |
5595 | * lpfc_els_rsp_rls_acc(), set to the MBX_READ_LNK_STAT mailbox command | |
5596 | * to actually sending out RPL Accept (ACC) response. | |
5597 | * | |
5598 | * Return codes | |
5599 | * 0 - Successfully processed rls iocb (currently always return 0) | |
5600 | **/ | |
5601 | static int | |
5602 | lpfc_els_rcv_rls(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, | |
5603 | struct lpfc_nodelist *ndlp) | |
5604 | { | |
5605 | struct lpfc_hba *phba = vport->phba; | |
5606 | LPFC_MBOXQ_t *mbox; | |
5607 | struct lpfc_dmabuf *pcmd; | |
5608 | struct ls_rjt stat; | |
5609 | ||
5610 | if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && | |
5611 | (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) | |
5612 | /* reject the unsolicited RPS request and done with it */ | |
5613 | goto reject_out; | |
5614 | ||
5615 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
5616 | ||
5617 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC); | |
5618 | if (mbox) { | |
5619 | lpfc_read_lnk_stat(phba, mbox); | |
7851fe2c JS |
5620 | mbox->context1 = (void *)((unsigned long) |
5621 | ((cmdiocb->iocb.unsli3.rcvsli3.ox_id << 16) | | |
5622 | cmdiocb->iocb.ulpContext)); /* rx_id */ | |
12265f68 JS |
5623 | mbox->context2 = lpfc_nlp_get(ndlp); |
5624 | mbox->vport = vport; | |
5625 | mbox->mbox_cmpl = lpfc_els_rsp_rls_acc; | |
5626 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) | |
5627 | != MBX_NOT_FINISHED) | |
5628 | /* Mbox completion will send ELS Response */ | |
5629 | return 0; | |
5630 | /* Decrement reference count used for the failed mbox | |
5631 | * command. | |
5632 | */ | |
5633 | lpfc_nlp_put(ndlp); | |
5634 | mempool_free(mbox, phba->mbox_mem_pool); | |
5635 | } | |
5636 | reject_out: | |
5637 | /* issue rejection response */ | |
5638 | stat.un.b.lsRjtRsvd0 = 0; | |
5639 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
5640 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
5641 | stat.un.b.vendorUnique = 0; | |
5642 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); | |
5643 | return 0; | |
5644 | } | |
5645 | ||
5646 | /** | |
5647 | * lpfc_els_rcv_rtv - Process an unsolicited rtv iocb | |
5648 | * @vport: pointer to a host virtual N_Port data structure. | |
5649 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5650 | * @ndlp: pointer to a node-list data structure. | |
5651 | * | |
5652 | * This routine processes Read Timout Value (RTV) IOCB received as an | |
5653 | * ELS unsolicited event. It first checks the remote port state. If the | |
5654 | * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE | |
5655 | * state, it invokes the lpfc_els_rsl_reject() routine to send the reject | |
5656 | * response. Otherwise, it sends the Accept(ACC) response to a Read Timeout | |
5657 | * Value (RTV) unsolicited IOCB event. | |
5658 | * | |
5659 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
5660 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
5661 | * will be stored into the context1 field of the IOCB for the completion | |
5662 | * callback function to the RPS Accept Response ELS IOCB command. | |
5663 | * | |
5664 | * Return codes | |
5665 | * 0 - Successfully processed rtv iocb (currently always return 0) | |
5666 | **/ | |
5667 | static int | |
5668 | lpfc_els_rcv_rtv(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, | |
5669 | struct lpfc_nodelist *ndlp) | |
5670 | { | |
5671 | struct lpfc_hba *phba = vport->phba; | |
5672 | struct ls_rjt stat; | |
5673 | struct RTV_RSP *rtv_rsp; | |
5674 | uint8_t *pcmd; | |
5675 | struct lpfc_iocbq *elsiocb; | |
5676 | uint32_t cmdsize; | |
5677 | ||
5678 | ||
5679 | if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && | |
5680 | (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) | |
5681 | /* reject the unsolicited RPS request and done with it */ | |
5682 | goto reject_out; | |
5683 | ||
5684 | cmdsize = sizeof(struct RTV_RSP) + sizeof(uint32_t); | |
5685 | elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, | |
5686 | lpfc_max_els_tries, ndlp, | |
5687 | ndlp->nlp_DID, ELS_CMD_ACC); | |
5688 | ||
5689 | if (!elsiocb) | |
5690 | return 1; | |
5691 | ||
5692 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
5693 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
5694 | pcmd += sizeof(uint32_t); /* Skip past command */ | |
5695 | ||
5696 | /* use the command's xri in the response */ | |
7851fe2c JS |
5697 | elsiocb->iocb.ulpContext = cmdiocb->iocb.ulpContext; /* Xri / rx_id */ |
5698 | elsiocb->iocb.unsli3.rcvsli3.ox_id = cmdiocb->iocb.unsli3.rcvsli3.ox_id; | |
12265f68 JS |
5699 | |
5700 | rtv_rsp = (struct RTV_RSP *)pcmd; | |
5701 | ||
5702 | /* populate RTV payload */ | |
5703 | rtv_rsp->ratov = cpu_to_be32(phba->fc_ratov * 1000); /* report msecs */ | |
5704 | rtv_rsp->edtov = cpu_to_be32(phba->fc_edtov); | |
5705 | bf_set(qtov_edtovres, rtv_rsp, phba->fc_edtovResol ? 1 : 0); | |
5706 | bf_set(qtov_rttov, rtv_rsp, 0); /* Field is for FC ONLY */ | |
5707 | rtv_rsp->qtov = cpu_to_be32(rtv_rsp->qtov); | |
5708 | ||
5709 | /* Xmit ELS RLS ACC response tag <ulpIoTag> */ | |
5710 | lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS, | |
5711 | "2875 Xmit ELS RTV ACC response tag x%x xri x%x, " | |
5712 | "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x, " | |
5713 | "Data: x%x x%x x%x\n", | |
5714 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
5715 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
5716 | ndlp->nlp_rpi, | |
5717 | rtv_rsp->ratov, rtv_rsp->edtov, rtv_rsp->qtov); | |
5718 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; | |
5719 | phba->fc_stat.elsXmitACC++; | |
5720 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR) | |
5721 | lpfc_els_free_iocb(phba, elsiocb); | |
5722 | return 0; | |
5723 | ||
5724 | reject_out: | |
5725 | /* issue rejection response */ | |
5726 | stat.un.b.lsRjtRsvd0 = 0; | |
5727 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
5728 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
5729 | stat.un.b.vendorUnique = 0; | |
5730 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); | |
5731 | return 0; | |
5732 | } | |
5733 | ||
5734 | /* lpfc_els_rcv_rps - Process an unsolicited rps iocb | |
e59058c4 JS |
5735 | * @vport: pointer to a host virtual N_Port data structure. |
5736 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5737 | * @ndlp: pointer to a node-list data structure. | |
5738 | * | |
5739 | * This routine processes Read Port Status (RPS) IOCB received as an | |
5740 | * ELS unsolicited event. It first checks the remote port state. If the | |
5741 | * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE | |
5742 | * state, it invokes the lpfc_els_rsp_reject() routine to send the reject | |
5743 | * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command | |
5744 | * for reading the HBA link statistics. It is for the callback function, | |
5745 | * lpfc_els_rsp_rps_acc(), set to the MBX_READ_LNK_STAT mailbox command | |
5746 | * to actually sending out RPS Accept (ACC) response. | |
5747 | * | |
5748 | * Return codes | |
5749 | * 0 - Successfully processed rps iocb (currently always return 0) | |
5750 | **/ | |
7bb3b137 | 5751 | static int |
2e0fef85 JS |
5752 | lpfc_els_rcv_rps(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
5753 | struct lpfc_nodelist *ndlp) | |
dea3101e | 5754 | { |
2e0fef85 | 5755 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 5756 | uint32_t *lp; |
7bb3b137 JW |
5757 | uint8_t flag; |
5758 | LPFC_MBOXQ_t *mbox; | |
5759 | struct lpfc_dmabuf *pcmd; | |
5760 | RPS *rps; | |
5761 | struct ls_rjt stat; | |
5762 | ||
2fe165b6 | 5763 | if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && |
90160e01 JS |
5764 | (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) |
5765 | /* reject the unsolicited RPS request and done with it */ | |
5766 | goto reject_out; | |
7bb3b137 JW |
5767 | |
5768 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
5769 | lp = (uint32_t *) pcmd->virt; | |
5770 | flag = (be32_to_cpu(*lp++) & 0xf); | |
5771 | rps = (RPS *) lp; | |
5772 | ||
5773 | if ((flag == 0) || | |
5774 | ((flag == 1) && (be32_to_cpu(rps->un.portNum) == 0)) || | |
2e0fef85 | 5775 | ((flag == 2) && (memcmp(&rps->un.portName, &vport->fc_portname, |
92d7f7b0 | 5776 | sizeof(struct lpfc_name)) == 0))) { |
2e0fef85 | 5777 | |
92d7f7b0 JS |
5778 | printk("Fix me....\n"); |
5779 | dump_stack(); | |
2e0fef85 JS |
5780 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC); |
5781 | if (mbox) { | |
7bb3b137 | 5782 | lpfc_read_lnk_stat(phba, mbox); |
7851fe2c JS |
5783 | mbox->context1 = (void *)((unsigned long) |
5784 | ((cmdiocb->iocb.unsli3.rcvsli3.ox_id << 16) | | |
5785 | cmdiocb->iocb.ulpContext)); /* rx_id */ | |
329f9bc7 | 5786 | mbox->context2 = lpfc_nlp_get(ndlp); |
92d7f7b0 | 5787 | mbox->vport = vport; |
7bb3b137 | 5788 | mbox->mbox_cmpl = lpfc_els_rsp_rps_acc; |
fa4066b6 | 5789 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) |
0b727fea | 5790 | != MBX_NOT_FINISHED) |
7bb3b137 JW |
5791 | /* Mbox completion will send ELS Response */ |
5792 | return 0; | |
fa4066b6 JS |
5793 | /* Decrement reference count used for the failed mbox |
5794 | * command. | |
5795 | */ | |
329f9bc7 | 5796 | lpfc_nlp_put(ndlp); |
7bb3b137 JW |
5797 | mempool_free(mbox, phba->mbox_mem_pool); |
5798 | } | |
5799 | } | |
90160e01 JS |
5800 | |
5801 | reject_out: | |
5802 | /* issue rejection response */ | |
7bb3b137 JW |
5803 | stat.un.b.lsRjtRsvd0 = 0; |
5804 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
5805 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
5806 | stat.un.b.vendorUnique = 0; | |
858c9f6c | 5807 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); |
7bb3b137 JW |
5808 | return 0; |
5809 | } | |
5810 | ||
19ca7609 JS |
5811 | /* lpfc_issue_els_rrq - Process an unsolicited rps iocb |
5812 | * @vport: pointer to a host virtual N_Port data structure. | |
5813 | * @ndlp: pointer to a node-list data structure. | |
5814 | * @did: DID of the target. | |
5815 | * @rrq: Pointer to the rrq struct. | |
5816 | * | |
5817 | * Build a ELS RRQ command and send it to the target. If the issue_iocb is | |
5818 | * Successful the the completion handler will clear the RRQ. | |
5819 | * | |
5820 | * Return codes | |
5821 | * 0 - Successfully sent rrq els iocb. | |
5822 | * 1 - Failed to send rrq els iocb. | |
5823 | **/ | |
5824 | static int | |
5825 | lpfc_issue_els_rrq(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, | |
5826 | uint32_t did, struct lpfc_node_rrq *rrq) | |
5827 | { | |
5828 | struct lpfc_hba *phba = vport->phba; | |
5829 | struct RRQ *els_rrq; | |
5830 | IOCB_t *icmd; | |
5831 | struct lpfc_iocbq *elsiocb; | |
5832 | uint8_t *pcmd; | |
5833 | uint16_t cmdsize; | |
5834 | int ret; | |
5835 | ||
5836 | ||
5837 | if (ndlp != rrq->ndlp) | |
5838 | ndlp = rrq->ndlp; | |
5839 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) | |
5840 | return 1; | |
5841 | ||
5842 | /* If ndlp is not NULL, we will bump the reference count on it */ | |
5843 | cmdsize = (sizeof(uint32_t) + sizeof(struct RRQ)); | |
5844 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, did, | |
5845 | ELS_CMD_RRQ); | |
5846 | if (!elsiocb) | |
5847 | return 1; | |
5848 | ||
5849 | icmd = &elsiocb->iocb; | |
5850 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
5851 | ||
5852 | /* For RRQ request, remainder of payload is Exchange IDs */ | |
5853 | *((uint32_t *) (pcmd)) = ELS_CMD_RRQ; | |
5854 | pcmd += sizeof(uint32_t); | |
5855 | els_rrq = (struct RRQ *) pcmd; | |
5856 | ||
ee0f4fe1 | 5857 | bf_set(rrq_oxid, els_rrq, phba->sli4_hba.xri_ids[rrq->xritag]); |
19ca7609 JS |
5858 | bf_set(rrq_rxid, els_rrq, rrq->rxid); |
5859 | bf_set(rrq_did, els_rrq, vport->fc_myDID); | |
5860 | els_rrq->rrq = cpu_to_be32(els_rrq->rrq); | |
5861 | els_rrq->rrq_exchg = cpu_to_be32(els_rrq->rrq_exchg); | |
5862 | ||
5863 | ||
5864 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, | |
5865 | "Issue RRQ: did:x%x", | |
5866 | did, rrq->xritag, rrq->rxid); | |
5867 | elsiocb->context_un.rrq = rrq; | |
5868 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rrq; | |
5869 | ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); | |
5870 | ||
5871 | if (ret == IOCB_ERROR) { | |
5872 | lpfc_els_free_iocb(phba, elsiocb); | |
5873 | return 1; | |
5874 | } | |
5875 | return 0; | |
5876 | } | |
5877 | ||
5878 | /** | |
5879 | * lpfc_send_rrq - Sends ELS RRQ if needed. | |
5880 | * @phba: pointer to lpfc hba data structure. | |
5881 | * @rrq: pointer to the active rrq. | |
5882 | * | |
5883 | * This routine will call the lpfc_issue_els_rrq if the rrq is | |
5884 | * still active for the xri. If this function returns a failure then | |
5885 | * the caller needs to clean up the RRQ by calling lpfc_clr_active_rrq. | |
5886 | * | |
5887 | * Returns 0 Success. | |
5888 | * 1 Failure. | |
5889 | **/ | |
5890 | int | |
5891 | lpfc_send_rrq(struct lpfc_hba *phba, struct lpfc_node_rrq *rrq) | |
5892 | { | |
5893 | struct lpfc_nodelist *ndlp = lpfc_findnode_did(rrq->vport, | |
5894 | rrq->nlp_DID); | |
5895 | if (lpfc_test_rrq_active(phba, ndlp, rrq->xritag)) | |
5896 | return lpfc_issue_els_rrq(rrq->vport, ndlp, | |
5897 | rrq->nlp_DID, rrq); | |
5898 | else | |
5899 | return 1; | |
5900 | } | |
5901 | ||
e59058c4 | 5902 | /** |
3621a710 | 5903 | * lpfc_els_rsp_rpl_acc - Issue an accept rpl els command |
e59058c4 JS |
5904 | * @vport: pointer to a host virtual N_Port data structure. |
5905 | * @cmdsize: size of the ELS command. | |
5906 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
5907 | * @ndlp: pointer to a node-list data structure. | |
5908 | * | |
5909 | * This routine issuees an Accept (ACC) Read Port List (RPL) ELS command. | |
5910 | * It is to be called by the lpfc_els_rcv_rpl() routine to accept the RPL. | |
5911 | * | |
5912 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
5913 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
5914 | * will be stored into the context1 field of the IOCB for the completion | |
5915 | * callback function to the RPL Accept Response ELS command. | |
5916 | * | |
5917 | * Return code | |
5918 | * 0 - Successfully issued ACC RPL ELS command | |
5919 | * 1 - Failed to issue ACC RPL ELS command | |
5920 | **/ | |
082c0266 | 5921 | static int |
2e0fef85 JS |
5922 | lpfc_els_rsp_rpl_acc(struct lpfc_vport *vport, uint16_t cmdsize, |
5923 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) | |
7bb3b137 | 5924 | { |
2e0fef85 JS |
5925 | struct lpfc_hba *phba = vport->phba; |
5926 | IOCB_t *icmd, *oldcmd; | |
7bb3b137 JW |
5927 | RPL_RSP rpl_rsp; |
5928 | struct lpfc_iocbq *elsiocb; | |
7bb3b137 | 5929 | uint8_t *pcmd; |
dea3101e | 5930 | |
2e0fef85 JS |
5931 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
5932 | ndlp->nlp_DID, ELS_CMD_ACC); | |
7bb3b137 | 5933 | |
488d1469 | 5934 | if (!elsiocb) |
7bb3b137 | 5935 | return 1; |
488d1469 | 5936 | |
7bb3b137 JW |
5937 | icmd = &elsiocb->iocb; |
5938 | oldcmd = &oldiocb->iocb; | |
7851fe2c JS |
5939 | icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ |
5940 | icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id; | |
7bb3b137 JW |
5941 | |
5942 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
5943 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 | 5944 | pcmd += sizeof(uint16_t); |
7bb3b137 JW |
5945 | *((uint16_t *)(pcmd)) = be16_to_cpu(cmdsize); |
5946 | pcmd += sizeof(uint16_t); | |
5947 | ||
5948 | /* Setup the RPL ACC payload */ | |
5949 | rpl_rsp.listLen = be32_to_cpu(1); | |
5950 | rpl_rsp.index = 0; | |
5951 | rpl_rsp.port_num_blk.portNum = 0; | |
2e0fef85 JS |
5952 | rpl_rsp.port_num_blk.portID = be32_to_cpu(vport->fc_myDID); |
5953 | memcpy(&rpl_rsp.port_num_blk.portName, &vport->fc_portname, | |
7bb3b137 | 5954 | sizeof(struct lpfc_name)); |
7bb3b137 | 5955 | memcpy(pcmd, &rpl_rsp, cmdsize - sizeof(uint32_t)); |
7bb3b137 | 5956 | /* Xmit ELS RPL ACC response tag <ulpIoTag> */ |
e8b62011 JS |
5957 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
5958 | "0120 Xmit ELS RPL ACC response tag x%x " | |
5959 | "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, " | |
5960 | "rpi x%x\n", | |
5961 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
5962 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
5963 | ndlp->nlp_rpi); | |
858c9f6c | 5964 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
7bb3b137 | 5965 | phba->fc_stat.elsXmitACC++; |
3772a991 JS |
5966 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
5967 | IOCB_ERROR) { | |
7bb3b137 JW |
5968 | lpfc_els_free_iocb(phba, elsiocb); |
5969 | return 1; | |
5970 | } | |
5971 | return 0; | |
5972 | } | |
5973 | ||
e59058c4 | 5974 | /** |
3621a710 | 5975 | * lpfc_els_rcv_rpl - Process an unsolicited rpl iocb |
e59058c4 JS |
5976 | * @vport: pointer to a host virtual N_Port data structure. |
5977 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5978 | * @ndlp: pointer to a node-list data structure. | |
5979 | * | |
5980 | * This routine processes Read Port List (RPL) IOCB received as an ELS | |
5981 | * unsolicited event. It first checks the remote port state. If the remote | |
5982 | * port is not in NLP_STE_UNMAPPED_NODE and NLP_STE_MAPPED_NODE states, it | |
5983 | * invokes the lpfc_els_rsp_reject() routine to send reject response. | |
5984 | * Otherwise, this routine then invokes the lpfc_els_rsp_rpl_acc() routine | |
5985 | * to accept the RPL. | |
5986 | * | |
5987 | * Return code | |
5988 | * 0 - Successfully processed rpl iocb (currently always return 0) | |
5989 | **/ | |
7bb3b137 | 5990 | static int |
2e0fef85 JS |
5991 | lpfc_els_rcv_rpl(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
5992 | struct lpfc_nodelist *ndlp) | |
7bb3b137 JW |
5993 | { |
5994 | struct lpfc_dmabuf *pcmd; | |
5995 | uint32_t *lp; | |
5996 | uint32_t maxsize; | |
5997 | uint16_t cmdsize; | |
5998 | RPL *rpl; | |
5999 | struct ls_rjt stat; | |
6000 | ||
2fe165b6 JW |
6001 | if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && |
6002 | (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) { | |
90160e01 | 6003 | /* issue rejection response */ |
7bb3b137 JW |
6004 | stat.un.b.lsRjtRsvd0 = 0; |
6005 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
6006 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
6007 | stat.un.b.vendorUnique = 0; | |
858c9f6c JS |
6008 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, |
6009 | NULL); | |
90160e01 JS |
6010 | /* rejected the unsolicited RPL request and done with it */ |
6011 | return 0; | |
7bb3b137 JW |
6012 | } |
6013 | ||
dea3101e | 6014 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; |
6015 | lp = (uint32_t *) pcmd->virt; | |
7bb3b137 | 6016 | rpl = (RPL *) (lp + 1); |
7bb3b137 | 6017 | maxsize = be32_to_cpu(rpl->maxsize); |
dea3101e | 6018 | |
7bb3b137 JW |
6019 | /* We support only one port */ |
6020 | if ((rpl->index == 0) && | |
6021 | ((maxsize == 0) || | |
6022 | ((maxsize * sizeof(uint32_t)) >= sizeof(RPL_RSP)))) { | |
6023 | cmdsize = sizeof(uint32_t) + sizeof(RPL_RSP); | |
2fe165b6 | 6024 | } else { |
7bb3b137 JW |
6025 | cmdsize = sizeof(uint32_t) + maxsize * sizeof(uint32_t); |
6026 | } | |
2e0fef85 | 6027 | lpfc_els_rsp_rpl_acc(vport, cmdsize, cmdiocb, ndlp); |
dea3101e | 6028 | |
6029 | return 0; | |
6030 | } | |
6031 | ||
e59058c4 | 6032 | /** |
3621a710 | 6033 | * lpfc_els_rcv_farp - Process an unsolicited farp request els command |
e59058c4 JS |
6034 | * @vport: pointer to a virtual N_Port data structure. |
6035 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
6036 | * @ndlp: pointer to a node-list data structure. | |
6037 | * | |
6038 | * This routine processes Fibre Channel Address Resolution Protocol | |
6039 | * (FARP) Request IOCB received as an ELS unsolicited event. Currently, | |
6040 | * the lpfc driver only supports matching on WWPN or WWNN for FARP. As such, | |
6041 | * FARP_MATCH_PORT flag and FARP_MATCH_NODE flag are checked against the | |
6042 | * Match Flag in the FARP request IOCB: if FARP_MATCH_PORT flag is set, the | |
6043 | * remote PortName is compared against the FC PortName stored in the @vport | |
6044 | * data structure; if FARP_MATCH_NODE flag is set, the remote NodeName is | |
6045 | * compared against the FC NodeName stored in the @vport data structure. | |
6046 | * If any of these matches and the FARP_REQUEST_FARPR flag is set in the | |
6047 | * FARP request IOCB Response Flag, the lpfc_issue_els_farpr() routine is | |
6048 | * invoked to send out FARP Response to the remote node. Before sending the | |
6049 | * FARP Response, however, the FARP_REQUEST_PLOGI flag is check in the FARP | |
6050 | * request IOCB Response Flag and, if it is set, the lpfc_issue_els_plogi() | |
6051 | * routine is invoked to log into the remote port first. | |
6052 | * | |
6053 | * Return code | |
6054 | * 0 - Either the FARP Match Mode not supported or successfully processed | |
6055 | **/ | |
dea3101e | 6056 | static int |
2e0fef85 JS |
6057 | lpfc_els_rcv_farp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
6058 | struct lpfc_nodelist *ndlp) | |
dea3101e | 6059 | { |
6060 | struct lpfc_dmabuf *pcmd; | |
6061 | uint32_t *lp; | |
6062 | IOCB_t *icmd; | |
6063 | FARP *fp; | |
6064 | uint32_t cmd, cnt, did; | |
6065 | ||
6066 | icmd = &cmdiocb->iocb; | |
6067 | did = icmd->un.elsreq64.remoteID; | |
6068 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
6069 | lp = (uint32_t *) pcmd->virt; | |
6070 | ||
6071 | cmd = *lp++; | |
6072 | fp = (FARP *) lp; | |
dea3101e | 6073 | /* FARP-REQ received from DID <did> */ |
e8b62011 JS |
6074 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
6075 | "0601 FARP-REQ received from DID x%x\n", did); | |
dea3101e | 6076 | /* We will only support match on WWPN or WWNN */ |
6077 | if (fp->Mflags & ~(FARP_MATCH_NODE | FARP_MATCH_PORT)) { | |
c9f8735b | 6078 | return 0; |
dea3101e | 6079 | } |
6080 | ||
6081 | cnt = 0; | |
6082 | /* If this FARP command is searching for my portname */ | |
6083 | if (fp->Mflags & FARP_MATCH_PORT) { | |
2e0fef85 | 6084 | if (memcmp(&fp->RportName, &vport->fc_portname, |
92d7f7b0 | 6085 | sizeof(struct lpfc_name)) == 0) |
dea3101e | 6086 | cnt = 1; |
6087 | } | |
6088 | ||
6089 | /* If this FARP command is searching for my nodename */ | |
6090 | if (fp->Mflags & FARP_MATCH_NODE) { | |
2e0fef85 | 6091 | if (memcmp(&fp->RnodeName, &vport->fc_nodename, |
92d7f7b0 | 6092 | sizeof(struct lpfc_name)) == 0) |
dea3101e | 6093 | cnt = 1; |
6094 | } | |
6095 | ||
6096 | if (cnt) { | |
6097 | if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) || | |
6098 | (ndlp->nlp_state == NLP_STE_MAPPED_NODE)) { | |
6099 | /* Log back into the node before sending the FARP. */ | |
6100 | if (fp->Rflags & FARP_REQUEST_PLOGI) { | |
5024ab17 | 6101 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 6102 | lpfc_nlp_set_state(vport, ndlp, |
de0c5b32 | 6103 | NLP_STE_PLOGI_ISSUE); |
2e0fef85 | 6104 | lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); |
dea3101e | 6105 | } |
6106 | ||
6107 | /* Send a FARP response to that node */ | |
2e0fef85 JS |
6108 | if (fp->Rflags & FARP_REQUEST_FARPR) |
6109 | lpfc_issue_els_farpr(vport, did, 0); | |
dea3101e | 6110 | } |
6111 | } | |
c9f8735b | 6112 | return 0; |
dea3101e | 6113 | } |
6114 | ||
e59058c4 | 6115 | /** |
3621a710 | 6116 | * lpfc_els_rcv_farpr - Process an unsolicited farp response iocb |
e59058c4 JS |
6117 | * @vport: pointer to a host virtual N_Port data structure. |
6118 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
6119 | * @ndlp: pointer to a node-list data structure. | |
6120 | * | |
6121 | * This routine processes Fibre Channel Address Resolution Protocol | |
6122 | * Response (FARPR) IOCB received as an ELS unsolicited event. It simply | |
6123 | * invokes the lpfc_els_rsp_acc() routine to the remote node to accept | |
6124 | * the FARP response request. | |
6125 | * | |
6126 | * Return code | |
6127 | * 0 - Successfully processed FARPR IOCB (currently always return 0) | |
6128 | **/ | |
dea3101e | 6129 | static int |
2e0fef85 JS |
6130 | lpfc_els_rcv_farpr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
6131 | struct lpfc_nodelist *ndlp) | |
dea3101e | 6132 | { |
6133 | struct lpfc_dmabuf *pcmd; | |
6134 | uint32_t *lp; | |
6135 | IOCB_t *icmd; | |
6136 | uint32_t cmd, did; | |
6137 | ||
6138 | icmd = &cmdiocb->iocb; | |
6139 | did = icmd->un.elsreq64.remoteID; | |
6140 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
6141 | lp = (uint32_t *) pcmd->virt; | |
6142 | ||
6143 | cmd = *lp++; | |
6144 | /* FARP-RSP received from DID <did> */ | |
e8b62011 JS |
6145 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
6146 | "0600 FARP-RSP received from DID x%x\n", did); | |
dea3101e | 6147 | /* ACCEPT the Farp resp request */ |
51ef4c26 | 6148 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
dea3101e | 6149 | |
6150 | return 0; | |
6151 | } | |
6152 | ||
e59058c4 | 6153 | /** |
3621a710 | 6154 | * lpfc_els_rcv_fan - Process an unsolicited fan iocb command |
e59058c4 JS |
6155 | * @vport: pointer to a host virtual N_Port data structure. |
6156 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
6157 | * @fan_ndlp: pointer to a node-list data structure. | |
6158 | * | |
6159 | * This routine processes a Fabric Address Notification (FAN) IOCB | |
6160 | * command received as an ELS unsolicited event. The FAN ELS command will | |
6161 | * only be processed on a physical port (i.e., the @vport represents the | |
6162 | * physical port). The fabric NodeName and PortName from the FAN IOCB are | |
6163 | * compared against those in the phba data structure. If any of those is | |
6164 | * different, the lpfc_initial_flogi() routine is invoked to initialize | |
6165 | * Fabric Login (FLOGI) to the fabric to start the discover over. Otherwise, | |
6166 | * if both of those are identical, the lpfc_issue_fabric_reglogin() routine | |
6167 | * is invoked to register login to the fabric. | |
6168 | * | |
6169 | * Return code | |
6170 | * 0 - Successfully processed fan iocb (currently always return 0). | |
6171 | **/ | |
dea3101e | 6172 | static int |
2e0fef85 JS |
6173 | lpfc_els_rcv_fan(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
6174 | struct lpfc_nodelist *fan_ndlp) | |
dea3101e | 6175 | { |
0d2b6b83 | 6176 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 6177 | uint32_t *lp; |
5024ab17 | 6178 | FAN *fp; |
dea3101e | 6179 | |
0d2b6b83 JS |
6180 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0265 FAN received\n"); |
6181 | lp = (uint32_t *)((struct lpfc_dmabuf *)cmdiocb->context2)->virt; | |
6182 | fp = (FAN *) ++lp; | |
5024ab17 | 6183 | /* FAN received; Fan does not have a reply sequence */ |
0d2b6b83 JS |
6184 | if ((vport == phba->pport) && |
6185 | (vport->port_state == LPFC_LOCAL_CFG_LINK)) { | |
5024ab17 | 6186 | if ((memcmp(&phba->fc_fabparam.nodeName, &fp->FnodeName, |
0d2b6b83 | 6187 | sizeof(struct lpfc_name))) || |
5024ab17 | 6188 | (memcmp(&phba->fc_fabparam.portName, &fp->FportName, |
0d2b6b83 JS |
6189 | sizeof(struct lpfc_name)))) { |
6190 | /* This port has switched fabrics. FLOGI is required */ | |
76a95d75 | 6191 | lpfc_issue_init_vfi(vport); |
0d2b6b83 JS |
6192 | } else { |
6193 | /* FAN verified - skip FLOGI */ | |
6194 | vport->fc_myDID = vport->fc_prevDID; | |
6fb120a7 JS |
6195 | if (phba->sli_rev < LPFC_SLI_REV4) |
6196 | lpfc_issue_fabric_reglogin(vport); | |
1b51197d JS |
6197 | else { |
6198 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
6199 | "3138 Need register VFI: (x%x/%x)\n", | |
6200 | vport->fc_prevDID, vport->fc_myDID); | |
6fb120a7 | 6201 | lpfc_issue_reg_vfi(vport); |
1b51197d | 6202 | } |
5024ab17 | 6203 | } |
dea3101e | 6204 | } |
c9f8735b | 6205 | return 0; |
dea3101e | 6206 | } |
6207 | ||
e59058c4 | 6208 | /** |
3621a710 | 6209 | * lpfc_els_timeout - Handler funciton to the els timer |
e59058c4 JS |
6210 | * @ptr: holder for the timer function associated data. |
6211 | * | |
6212 | * This routine is invoked by the ELS timer after timeout. It posts the ELS | |
6213 | * timer timeout event by setting the WORKER_ELS_TMO bit to the work port | |
6214 | * event bitmap and then invokes the lpfc_worker_wake_up() routine to wake | |
6215 | * up the worker thread. It is for the worker thread to invoke the routine | |
6216 | * lpfc_els_timeout_handler() to work on the posted event WORKER_ELS_TMO. | |
6217 | **/ | |
dea3101e | 6218 | void |
6219 | lpfc_els_timeout(unsigned long ptr) | |
6220 | { | |
2e0fef85 JS |
6221 | struct lpfc_vport *vport = (struct lpfc_vport *) ptr; |
6222 | struct lpfc_hba *phba = vport->phba; | |
5e9d9b82 | 6223 | uint32_t tmo_posted; |
dea3101e | 6224 | unsigned long iflag; |
6225 | ||
2e0fef85 | 6226 | spin_lock_irqsave(&vport->work_port_lock, iflag); |
5e9d9b82 | 6227 | tmo_posted = vport->work_port_events & WORKER_ELS_TMO; |
06918ac5 | 6228 | if ((!tmo_posted) && (!(vport->load_flag & FC_UNLOADING))) |
2e0fef85 | 6229 | vport->work_port_events |= WORKER_ELS_TMO; |
5e9d9b82 | 6230 | spin_unlock_irqrestore(&vport->work_port_lock, iflag); |
92d7f7b0 | 6231 | |
06918ac5 | 6232 | if ((!tmo_posted) && (!(vport->load_flag & FC_UNLOADING))) |
5e9d9b82 | 6233 | lpfc_worker_wake_up(phba); |
dea3101e | 6234 | return; |
6235 | } | |
6236 | ||
2a9bf3d0 | 6237 | |
e59058c4 | 6238 | /** |
3621a710 | 6239 | * lpfc_els_timeout_handler - Process an els timeout event |
e59058c4 JS |
6240 | * @vport: pointer to a virtual N_Port data structure. |
6241 | * | |
6242 | * This routine is the actual handler function that processes an ELS timeout | |
6243 | * event. It walks the ELS ring to get and abort all the IOCBs (except the | |
6244 | * ABORT/CLOSE/FARP/FARPR/FDISC), which are associated with the @vport by | |
6245 | * invoking the lpfc_sli_issue_abort_iotag() routine. | |
6246 | **/ | |
dea3101e | 6247 | void |
2e0fef85 | 6248 | lpfc_els_timeout_handler(struct lpfc_vport *vport) |
dea3101e | 6249 | { |
2e0fef85 | 6250 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 6251 | struct lpfc_sli_ring *pring; |
6252 | struct lpfc_iocbq *tmp_iocb, *piocb; | |
6253 | IOCB_t *cmd = NULL; | |
6254 | struct lpfc_dmabuf *pcmd; | |
2e0fef85 | 6255 | uint32_t els_command = 0; |
dea3101e | 6256 | uint32_t timeout; |
2e0fef85 | 6257 | uint32_t remote_ID = 0xffffffff; |
2a9bf3d0 JS |
6258 | LIST_HEAD(abort_list); |
6259 | ||
dea3101e | 6260 | |
dea3101e | 6261 | timeout = (uint32_t)(phba->fc_ratov << 1); |
6262 | ||
6263 | pring = &phba->sli.ring[LPFC_ELS_RING]; | |
06918ac5 JS |
6264 | if ((phba->pport->load_flag & FC_UNLOADING)) |
6265 | return; | |
2a9bf3d0 | 6266 | spin_lock_irq(&phba->hbalock); |
0976e1a6 JS |
6267 | if (phba->sli_rev == LPFC_SLI_REV4) |
6268 | spin_lock(&pring->ring_lock); | |
2a9bf3d0 | 6269 | |
06918ac5 JS |
6270 | if ((phba->pport->load_flag & FC_UNLOADING)) { |
6271 | if (phba->sli_rev == LPFC_SLI_REV4) | |
6272 | spin_unlock(&pring->ring_lock); | |
6273 | spin_unlock_irq(&phba->hbalock); | |
6274 | return; | |
6275 | } | |
6276 | ||
0976e1a6 | 6277 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { |
dea3101e | 6278 | cmd = &piocb->iocb; |
6279 | ||
2e0fef85 JS |
6280 | if ((piocb->iocb_flag & LPFC_IO_LIBDFC) != 0 || |
6281 | piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN || | |
6282 | piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN) | |
dea3101e | 6283 | continue; |
2e0fef85 JS |
6284 | |
6285 | if (piocb->vport != vport) | |
6286 | continue; | |
6287 | ||
dea3101e | 6288 | pcmd = (struct lpfc_dmabuf *) piocb->context2; |
2e0fef85 JS |
6289 | if (pcmd) |
6290 | els_command = *(uint32_t *) (pcmd->virt); | |
dea3101e | 6291 | |
92d7f7b0 JS |
6292 | if (els_command == ELS_CMD_FARP || |
6293 | els_command == ELS_CMD_FARPR || | |
6294 | els_command == ELS_CMD_FDISC) | |
6295 | continue; | |
6296 | ||
dea3101e | 6297 | if (piocb->drvrTimeout > 0) { |
92d7f7b0 | 6298 | if (piocb->drvrTimeout >= timeout) |
dea3101e | 6299 | piocb->drvrTimeout -= timeout; |
92d7f7b0 | 6300 | else |
dea3101e | 6301 | piocb->drvrTimeout = 0; |
dea3101e | 6302 | continue; |
6303 | } | |
6304 | ||
2e0fef85 JS |
6305 | remote_ID = 0xffffffff; |
6306 | if (cmd->ulpCommand != CMD_GEN_REQUEST64_CR) | |
dea3101e | 6307 | remote_ID = cmd->un.elsreq64.remoteID; |
2e0fef85 JS |
6308 | else { |
6309 | struct lpfc_nodelist *ndlp; | |
6310 | ndlp = __lpfc_findnode_rpi(vport, cmd->ulpContext); | |
58da1ffb | 6311 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) |
2e0fef85 | 6312 | remote_ID = ndlp->nlp_DID; |
dea3101e | 6313 | } |
2a9bf3d0 JS |
6314 | list_add_tail(&piocb->dlist, &abort_list); |
6315 | } | |
0976e1a6 JS |
6316 | if (phba->sli_rev == LPFC_SLI_REV4) |
6317 | spin_unlock(&pring->ring_lock); | |
2a9bf3d0 JS |
6318 | spin_unlock_irq(&phba->hbalock); |
6319 | ||
6320 | list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) { | |
15026c9e | 6321 | cmd = &piocb->iocb; |
e8b62011 | 6322 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
2a9bf3d0 JS |
6323 | "0127 ELS timeout Data: x%x x%x x%x " |
6324 | "x%x\n", els_command, | |
6325 | remote_ID, cmd->ulpCommand, cmd->ulpIoTag); | |
6326 | spin_lock_irq(&phba->hbalock); | |
6327 | list_del_init(&piocb->dlist); | |
07951076 | 6328 | lpfc_sli_issue_abort_iotag(phba, pring, piocb); |
2a9bf3d0 | 6329 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 6330 | } |
5a0e326d | 6331 | |
0e9bb8d7 | 6332 | if (!list_empty(&phba->sli.ring[LPFC_ELS_RING].txcmplq)) |
06918ac5 JS |
6333 | if (!(phba->pport->load_flag & FC_UNLOADING)) |
6334 | mod_timer(&vport->els_tmofunc, | |
6335 | jiffies + msecs_to_jiffies(1000 * timeout)); | |
dea3101e | 6336 | } |
6337 | ||
e59058c4 | 6338 | /** |
3621a710 | 6339 | * lpfc_els_flush_cmd - Clean up the outstanding els commands to a vport |
e59058c4 JS |
6340 | * @vport: pointer to a host virtual N_Port data structure. |
6341 | * | |
6342 | * This routine is used to clean up all the outstanding ELS commands on a | |
6343 | * @vport. It first aborts the @vport by invoking lpfc_fabric_abort_vport() | |
6344 | * routine. After that, it walks the ELS transmit queue to remove all the | |
6345 | * IOCBs with the @vport other than the QUE_RING and ABORT/CLOSE IOCBs. For | |
6346 | * the IOCBs with a non-NULL completion callback function, the callback | |
6347 | * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and | |
6348 | * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs with a NULL completion | |
6349 | * callback function, the IOCB will simply be released. Finally, it walks | |
6350 | * the ELS transmit completion queue to issue an abort IOCB to any transmit | |
6351 | * completion queue IOCB that is associated with the @vport and is not | |
6352 | * an IOCB from libdfc (i.e., the management plane IOCBs that are not | |
6353 | * part of the discovery state machine) out to HBA by invoking the | |
6354 | * lpfc_sli_issue_abort_iotag() routine. Note that this function issues the | |
6355 | * abort IOCB to any transmit completion queueed IOCB, it does not guarantee | |
6356 | * the IOCBs are aborted when this function returns. | |
6357 | **/ | |
dea3101e | 6358 | void |
2e0fef85 | 6359 | lpfc_els_flush_cmd(struct lpfc_vport *vport) |
dea3101e | 6360 | { |
0976e1a6 | 6361 | LIST_HEAD(abort_list); |
2e0fef85 | 6362 | struct lpfc_hba *phba = vport->phba; |
329f9bc7 | 6363 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; |
dea3101e | 6364 | struct lpfc_iocbq *tmp_iocb, *piocb; |
6365 | IOCB_t *cmd = NULL; | |
92d7f7b0 JS |
6366 | |
6367 | lpfc_fabric_abort_vport(vport); | |
0976e1a6 JS |
6368 | /* |
6369 | * For SLI3, only the hbalock is required. But SLI4 needs to coordinate | |
6370 | * with the ring insert operation. Because lpfc_sli_issue_abort_iotag | |
6371 | * ultimately grabs the ring_lock, the driver must splice the list into | |
6372 | * a working list and release the locks before calling the abort. | |
6373 | */ | |
6374 | spin_lock_irq(&phba->hbalock); | |
6375 | if (phba->sli_rev == LPFC_SLI_REV4) | |
6376 | spin_lock(&pring->ring_lock); | |
6377 | ||
6378 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { | |
6379 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) | |
6380 | continue; | |
6381 | ||
6382 | if (piocb->vport != vport) | |
6383 | continue; | |
6384 | list_add_tail(&piocb->dlist, &abort_list); | |
6385 | } | |
6386 | if (phba->sli_rev == LPFC_SLI_REV4) | |
6387 | spin_unlock(&pring->ring_lock); | |
6388 | spin_unlock_irq(&phba->hbalock); | |
6389 | /* Abort each iocb on the aborted list and remove the dlist links. */ | |
6390 | list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) { | |
6391 | spin_lock_irq(&phba->hbalock); | |
6392 | list_del_init(&piocb->dlist); | |
6393 | lpfc_sli_issue_abort_iotag(phba, pring, piocb); | |
6394 | spin_unlock_irq(&phba->hbalock); | |
6395 | } | |
6396 | if (!list_empty(&abort_list)) | |
6397 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
6398 | "3387 abort list for txq not empty\n"); | |
6399 | INIT_LIST_HEAD(&abort_list); | |
dea3101e | 6400 | |
2e0fef85 | 6401 | spin_lock_irq(&phba->hbalock); |
0976e1a6 JS |
6402 | if (phba->sli_rev == LPFC_SLI_REV4) |
6403 | spin_lock(&pring->ring_lock); | |
6404 | ||
dea3101e | 6405 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) { |
6406 | cmd = &piocb->iocb; | |
6407 | ||
6408 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) { | |
6409 | continue; | |
6410 | } | |
6411 | ||
6412 | /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */ | |
329f9bc7 JS |
6413 | if (cmd->ulpCommand == CMD_QUE_RING_BUF_CN || |
6414 | cmd->ulpCommand == CMD_QUE_RING_BUF64_CN || | |
6415 | cmd->ulpCommand == CMD_CLOSE_XRI_CN || | |
6416 | cmd->ulpCommand == CMD_ABORT_XRI_CN) | |
dea3101e | 6417 | continue; |
dea3101e | 6418 | |
2e0fef85 JS |
6419 | if (piocb->vport != vport) |
6420 | continue; | |
6421 | ||
0976e1a6 JS |
6422 | list_del_init(&piocb->list); |
6423 | list_add_tail(&piocb->list, &abort_list); | |
dea3101e | 6424 | } |
0976e1a6 JS |
6425 | if (phba->sli_rev == LPFC_SLI_REV4) |
6426 | spin_unlock(&pring->ring_lock); | |
2e0fef85 | 6427 | spin_unlock_irq(&phba->hbalock); |
2534ba75 | 6428 | |
a257bf90 | 6429 | /* Cancell all the IOCBs from the completions list */ |
0976e1a6 JS |
6430 | lpfc_sli_cancel_iocbs(phba, &abort_list, |
6431 | IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED); | |
2534ba75 | 6432 | |
dea3101e | 6433 | return; |
6434 | } | |
6435 | ||
e59058c4 | 6436 | /** |
3621a710 | 6437 | * lpfc_els_flush_all_cmd - Clean up all the outstanding els commands to a HBA |
e59058c4 JS |
6438 | * @phba: pointer to lpfc hba data structure. |
6439 | * | |
6440 | * This routine is used to clean up all the outstanding ELS commands on a | |
6441 | * @phba. It first aborts the @phba by invoking the lpfc_fabric_abort_hba() | |
6442 | * routine. After that, it walks the ELS transmit queue to remove all the | |
6443 | * IOCBs to the @phba other than the QUE_RING and ABORT/CLOSE IOCBs. For | |
6444 | * the IOCBs with the completion callback function associated, the callback | |
6445 | * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and | |
6446 | * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs without the completion | |
6447 | * callback function associated, the IOCB will simply be released. Finally, | |
6448 | * it walks the ELS transmit completion queue to issue an abort IOCB to any | |
6449 | * transmit completion queue IOCB that is not an IOCB from libdfc (i.e., the | |
6450 | * management plane IOCBs that are not part of the discovery state machine) | |
6451 | * out to HBA by invoking the lpfc_sli_issue_abort_iotag() routine. | |
6452 | **/ | |
549e55cd JS |
6453 | void |
6454 | lpfc_els_flush_all_cmd(struct lpfc_hba *phba) | |
6455 | { | |
0976e1a6 JS |
6456 | struct lpfc_vport *vport; |
6457 | list_for_each_entry(vport, &phba->port_list, listentry) | |
6458 | lpfc_els_flush_cmd(vport); | |
a257bf90 | 6459 | |
549e55cd JS |
6460 | return; |
6461 | } | |
6462 | ||
ea2151b4 | 6463 | /** |
3621a710 | 6464 | * lpfc_send_els_failure_event - Posts an ELS command failure event |
ea2151b4 JS |
6465 | * @phba: Pointer to hba context object. |
6466 | * @cmdiocbp: Pointer to command iocb which reported error. | |
6467 | * @rspiocbp: Pointer to response iocb which reported error. | |
6468 | * | |
6469 | * This function sends an event when there is an ELS command | |
6470 | * failure. | |
6471 | **/ | |
6472 | void | |
6473 | lpfc_send_els_failure_event(struct lpfc_hba *phba, | |
6474 | struct lpfc_iocbq *cmdiocbp, | |
6475 | struct lpfc_iocbq *rspiocbp) | |
6476 | { | |
6477 | struct lpfc_vport *vport = cmdiocbp->vport; | |
6478 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
6479 | struct lpfc_lsrjt_event lsrjt_event; | |
6480 | struct lpfc_fabric_event_header fabric_event; | |
6481 | struct ls_rjt stat; | |
6482 | struct lpfc_nodelist *ndlp; | |
6483 | uint32_t *pcmd; | |
6484 | ||
6485 | ndlp = cmdiocbp->context1; | |
6486 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) | |
6487 | return; | |
6488 | ||
6489 | if (rspiocbp->iocb.ulpStatus == IOSTAT_LS_RJT) { | |
6490 | lsrjt_event.header.event_type = FC_REG_ELS_EVENT; | |
6491 | lsrjt_event.header.subcategory = LPFC_EVENT_LSRJT_RCV; | |
6492 | memcpy(lsrjt_event.header.wwpn, &ndlp->nlp_portname, | |
6493 | sizeof(struct lpfc_name)); | |
6494 | memcpy(lsrjt_event.header.wwnn, &ndlp->nlp_nodename, | |
6495 | sizeof(struct lpfc_name)); | |
6496 | pcmd = (uint32_t *) (((struct lpfc_dmabuf *) | |
6497 | cmdiocbp->context2)->virt); | |
49198b37 | 6498 | lsrjt_event.command = (pcmd != NULL) ? *pcmd : 0; |
ea2151b4 JS |
6499 | stat.un.lsRjtError = be32_to_cpu(rspiocbp->iocb.un.ulpWord[4]); |
6500 | lsrjt_event.reason_code = stat.un.b.lsRjtRsnCode; | |
6501 | lsrjt_event.explanation = stat.un.b.lsRjtRsnCodeExp; | |
6502 | fc_host_post_vendor_event(shost, | |
6503 | fc_get_event_number(), | |
6504 | sizeof(lsrjt_event), | |
6505 | (char *)&lsrjt_event, | |
ddcc50f0 | 6506 | LPFC_NL_VENDOR_ID); |
ea2151b4 JS |
6507 | return; |
6508 | } | |
6509 | if ((rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY) || | |
6510 | (rspiocbp->iocb.ulpStatus == IOSTAT_FABRIC_BSY)) { | |
6511 | fabric_event.event_type = FC_REG_FABRIC_EVENT; | |
6512 | if (rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY) | |
6513 | fabric_event.subcategory = LPFC_EVENT_PORT_BUSY; | |
6514 | else | |
6515 | fabric_event.subcategory = LPFC_EVENT_FABRIC_BUSY; | |
6516 | memcpy(fabric_event.wwpn, &ndlp->nlp_portname, | |
6517 | sizeof(struct lpfc_name)); | |
6518 | memcpy(fabric_event.wwnn, &ndlp->nlp_nodename, | |
6519 | sizeof(struct lpfc_name)); | |
6520 | fc_host_post_vendor_event(shost, | |
6521 | fc_get_event_number(), | |
6522 | sizeof(fabric_event), | |
6523 | (char *)&fabric_event, | |
ddcc50f0 | 6524 | LPFC_NL_VENDOR_ID); |
ea2151b4 JS |
6525 | return; |
6526 | } | |
6527 | ||
6528 | } | |
6529 | ||
6530 | /** | |
3621a710 | 6531 | * lpfc_send_els_event - Posts unsolicited els event |
ea2151b4 JS |
6532 | * @vport: Pointer to vport object. |
6533 | * @ndlp: Pointer FC node object. | |
6534 | * @cmd: ELS command code. | |
6535 | * | |
6536 | * This function posts an event when there is an incoming | |
6537 | * unsolicited ELS command. | |
6538 | **/ | |
6539 | static void | |
6540 | lpfc_send_els_event(struct lpfc_vport *vport, | |
6541 | struct lpfc_nodelist *ndlp, | |
ddcc50f0 | 6542 | uint32_t *payload) |
ea2151b4 | 6543 | { |
ddcc50f0 JS |
6544 | struct lpfc_els_event_header *els_data = NULL; |
6545 | struct lpfc_logo_event *logo_data = NULL; | |
ea2151b4 JS |
6546 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
6547 | ||
ddcc50f0 JS |
6548 | if (*payload == ELS_CMD_LOGO) { |
6549 | logo_data = kmalloc(sizeof(struct lpfc_logo_event), GFP_KERNEL); | |
6550 | if (!logo_data) { | |
6551 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
6552 | "0148 Failed to allocate memory " | |
6553 | "for LOGO event\n"); | |
6554 | return; | |
6555 | } | |
6556 | els_data = &logo_data->header; | |
6557 | } else { | |
6558 | els_data = kmalloc(sizeof(struct lpfc_els_event_header), | |
6559 | GFP_KERNEL); | |
6560 | if (!els_data) { | |
6561 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
6562 | "0149 Failed to allocate memory " | |
6563 | "for ELS event\n"); | |
6564 | return; | |
6565 | } | |
6566 | } | |
6567 | els_data->event_type = FC_REG_ELS_EVENT; | |
6568 | switch (*payload) { | |
ea2151b4 | 6569 | case ELS_CMD_PLOGI: |
ddcc50f0 | 6570 | els_data->subcategory = LPFC_EVENT_PLOGI_RCV; |
ea2151b4 JS |
6571 | break; |
6572 | case ELS_CMD_PRLO: | |
ddcc50f0 | 6573 | els_data->subcategory = LPFC_EVENT_PRLO_RCV; |
ea2151b4 JS |
6574 | break; |
6575 | case ELS_CMD_ADISC: | |
ddcc50f0 JS |
6576 | els_data->subcategory = LPFC_EVENT_ADISC_RCV; |
6577 | break; | |
6578 | case ELS_CMD_LOGO: | |
6579 | els_data->subcategory = LPFC_EVENT_LOGO_RCV; | |
6580 | /* Copy the WWPN in the LOGO payload */ | |
6581 | memcpy(logo_data->logo_wwpn, &payload[2], | |
6582 | sizeof(struct lpfc_name)); | |
ea2151b4 JS |
6583 | break; |
6584 | default: | |
e916141c | 6585 | kfree(els_data); |
ea2151b4 JS |
6586 | return; |
6587 | } | |
ddcc50f0 JS |
6588 | memcpy(els_data->wwpn, &ndlp->nlp_portname, sizeof(struct lpfc_name)); |
6589 | memcpy(els_data->wwnn, &ndlp->nlp_nodename, sizeof(struct lpfc_name)); | |
6590 | if (*payload == ELS_CMD_LOGO) { | |
6591 | fc_host_post_vendor_event(shost, | |
6592 | fc_get_event_number(), | |
6593 | sizeof(struct lpfc_logo_event), | |
6594 | (char *)logo_data, | |
6595 | LPFC_NL_VENDOR_ID); | |
6596 | kfree(logo_data); | |
6597 | } else { | |
6598 | fc_host_post_vendor_event(shost, | |
6599 | fc_get_event_number(), | |
6600 | sizeof(struct lpfc_els_event_header), | |
6601 | (char *)els_data, | |
6602 | LPFC_NL_VENDOR_ID); | |
6603 | kfree(els_data); | |
6604 | } | |
ea2151b4 JS |
6605 | |
6606 | return; | |
6607 | } | |
6608 | ||
6609 | ||
e59058c4 | 6610 | /** |
3621a710 | 6611 | * lpfc_els_unsol_buffer - Process an unsolicited event data buffer |
e59058c4 JS |
6612 | * @phba: pointer to lpfc hba data structure. |
6613 | * @pring: pointer to a SLI ring. | |
6614 | * @vport: pointer to a host virtual N_Port data structure. | |
6615 | * @elsiocb: pointer to lpfc els command iocb data structure. | |
6616 | * | |
6617 | * This routine is used for processing the IOCB associated with a unsolicited | |
6618 | * event. It first determines whether there is an existing ndlp that matches | |
6619 | * the DID from the unsolicited IOCB. If not, it will create a new one with | |
6620 | * the DID from the unsolicited IOCB. The ELS command from the unsolicited | |
6621 | * IOCB is then used to invoke the proper routine and to set up proper state | |
6622 | * of the discovery state machine. | |
6623 | **/ | |
ed957684 JS |
6624 | static void |
6625 | lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
92d7f7b0 | 6626 | struct lpfc_vport *vport, struct lpfc_iocbq *elsiocb) |
dea3101e | 6627 | { |
87af33fe | 6628 | struct Scsi_Host *shost; |
dea3101e | 6629 | struct lpfc_nodelist *ndlp; |
dea3101e | 6630 | struct ls_rjt stat; |
92d7f7b0 | 6631 | uint32_t *payload; |
303f2f9c JS |
6632 | uint32_t cmd, did, newnode; |
6633 | uint8_t rjt_exp, rjt_err = 0; | |
ed957684 | 6634 | IOCB_t *icmd = &elsiocb->iocb; |
dea3101e | 6635 | |
e47c9093 | 6636 | if (!vport || !(elsiocb->context2)) |
dea3101e | 6637 | goto dropit; |
2e0fef85 | 6638 | |
dea3101e | 6639 | newnode = 0; |
92d7f7b0 JS |
6640 | payload = ((struct lpfc_dmabuf *)elsiocb->context2)->virt; |
6641 | cmd = *payload; | |
ed957684 | 6642 | if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) == 0) |
495a714c | 6643 | lpfc_post_buffer(phba, pring, 1); |
dea3101e | 6644 | |
858c9f6c JS |
6645 | did = icmd->un.rcvels.remoteID; |
6646 | if (icmd->ulpStatus) { | |
6647 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, | |
6648 | "RCV Unsol ELS: status:x%x/x%x did:x%x", | |
6649 | icmd->ulpStatus, icmd->un.ulpWord[4], did); | |
dea3101e | 6650 | goto dropit; |
858c9f6c | 6651 | } |
dea3101e | 6652 | |
6653 | /* Check to see if link went down during discovery */ | |
ed957684 | 6654 | if (lpfc_els_chk_latt(vport)) |
dea3101e | 6655 | goto dropit; |
dea3101e | 6656 | |
c868595d | 6657 | /* Ignore traffic received during vport shutdown. */ |
92d7f7b0 JS |
6658 | if (vport->load_flag & FC_UNLOADING) |
6659 | goto dropit; | |
6660 | ||
92494144 JS |
6661 | /* If NPort discovery is delayed drop incoming ELS */ |
6662 | if ((vport->fc_flag & FC_DISC_DELAYED) && | |
6663 | (cmd != ELS_CMD_PLOGI)) | |
6664 | goto dropit; | |
6665 | ||
2e0fef85 | 6666 | ndlp = lpfc_findnode_did(vport, did); |
c9f8735b | 6667 | if (!ndlp) { |
dea3101e | 6668 | /* Cannot find existing Fabric ndlp, so allocate a new one */ |
c9f8735b | 6669 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); |
ed957684 | 6670 | if (!ndlp) |
dea3101e | 6671 | goto dropit; |
dea3101e | 6672 | |
2e0fef85 | 6673 | lpfc_nlp_init(vport, ndlp, did); |
98c9ea5c | 6674 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
dea3101e | 6675 | newnode = 1; |
e47c9093 | 6676 | if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) |
dea3101e | 6677 | ndlp->nlp_type |= NLP_FABRIC; |
58da1ffb JS |
6678 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { |
6679 | ndlp = lpfc_enable_node(vport, ndlp, | |
6680 | NLP_STE_UNUSED_NODE); | |
6681 | if (!ndlp) | |
6682 | goto dropit; | |
6683 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); | |
6684 | newnode = 1; | |
6685 | if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) | |
6686 | ndlp->nlp_type |= NLP_FABRIC; | |
6687 | } else if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) { | |
6688 | /* This is similar to the new node path */ | |
6689 | ndlp = lpfc_nlp_get(ndlp); | |
6690 | if (!ndlp) | |
6691 | goto dropit; | |
6692 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); | |
6693 | newnode = 1; | |
87af33fe | 6694 | } |
dea3101e | 6695 | |
6696 | phba->fc_stat.elsRcvFrame++; | |
e47c9093 | 6697 | |
12838e74 JS |
6698 | /* |
6699 | * Do not process any unsolicited ELS commands | |
6700 | * if the ndlp is in DEV_LOSS | |
6701 | */ | |
6702 | if (ndlp->nlp_add_flag & NLP_IN_DEV_LOSS) | |
6703 | goto dropit; | |
6704 | ||
329f9bc7 | 6705 | elsiocb->context1 = lpfc_nlp_get(ndlp); |
2e0fef85 | 6706 | elsiocb->vport = vport; |
dea3101e | 6707 | |
6708 | if ((cmd & ELS_CMD_MASK) == ELS_CMD_RSCN) { | |
6709 | cmd &= ELS_CMD_MASK; | |
6710 | } | |
6711 | /* ELS command <elsCmd> received from NPORT <did> */ | |
e8b62011 JS |
6712 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
6713 | "0112 ELS command x%x received from NPORT x%x " | |
e74c03c8 JS |
6714 | "Data: x%x x%x x%x x%x\n", |
6715 | cmd, did, vport->port_state, vport->fc_flag, | |
6716 | vport->fc_myDID, vport->fc_prevDID); | |
dea3101e | 6717 | switch (cmd) { |
6718 | case ELS_CMD_PLOGI: | |
858c9f6c JS |
6719 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6720 | "RCV PLOGI: did:x%x/ste:x%x flg:x%x", | |
6721 | did, vport->port_state, ndlp->nlp_flag); | |
6722 | ||
dea3101e | 6723 | phba->fc_stat.elsRcvPLOGI++; |
858c9f6c | 6724 | ndlp = lpfc_plogi_confirm_nport(phba, payload, ndlp); |
e74c03c8 JS |
6725 | if (phba->sli_rev == LPFC_SLI_REV4 && |
6726 | (phba->pport->fc_flag & FC_PT2PT)) { | |
6727 | vport->fc_prevDID = vport->fc_myDID; | |
6728 | /* Our DID needs to be updated before registering | |
6729 | * the vfi. This is done in lpfc_rcv_plogi but | |
6730 | * that is called after the reg_vfi. | |
6731 | */ | |
6732 | vport->fc_myDID = elsiocb->iocb.un.rcvels.parmRo; | |
6733 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
6734 | "3312 Remote port assigned DID x%x " | |
6735 | "%x\n", vport->fc_myDID, | |
6736 | vport->fc_prevDID); | |
6737 | } | |
858c9f6c | 6738 | |
ddcc50f0 | 6739 | lpfc_send_els_event(vport, ndlp, payload); |
92494144 JS |
6740 | |
6741 | /* If Nport discovery is delayed, reject PLOGIs */ | |
6742 | if (vport->fc_flag & FC_DISC_DELAYED) { | |
6743 | rjt_err = LSRJT_UNABLE_TPC; | |
303f2f9c | 6744 | rjt_exp = LSEXP_NOTHING_MORE; |
92494144 JS |
6745 | break; |
6746 | } | |
e74c03c8 | 6747 | shost = lpfc_shost_from_vport(vport); |
858c9f6c | 6748 | if (vport->port_state < LPFC_DISC_AUTH) { |
1b32f6aa JS |
6749 | if (!(phba->pport->fc_flag & FC_PT2PT) || |
6750 | (phba->pport->fc_flag & FC_PT2PT_PLOGI)) { | |
6751 | rjt_err = LSRJT_UNABLE_TPC; | |
303f2f9c | 6752 | rjt_exp = LSEXP_NOTHING_MORE; |
1b32f6aa JS |
6753 | break; |
6754 | } | |
6755 | /* We get here, and drop thru, if we are PT2PT with | |
6756 | * another NPort and the other side has initiated | |
6757 | * the PLOGI before responding to our FLOGI. | |
6758 | */ | |
e74c03c8 JS |
6759 | if (phba->sli_rev == LPFC_SLI_REV4 && |
6760 | (phba->fc_topology_changed || | |
6761 | vport->fc_myDID != vport->fc_prevDID)) { | |
6762 | lpfc_unregister_fcf_prep(phba); | |
6763 | spin_lock_irq(shost->host_lock); | |
6764 | vport->fc_flag &= ~FC_VFI_REGISTERED; | |
6765 | spin_unlock_irq(shost->host_lock); | |
6766 | phba->fc_topology_changed = 0; | |
6767 | lpfc_issue_reg_vfi(vport); | |
6768 | } | |
dea3101e | 6769 | } |
87af33fe | 6770 | |
87af33fe JS |
6771 | spin_lock_irq(shost->host_lock); |
6772 | ndlp->nlp_flag &= ~NLP_TARGET_REMOVE; | |
6773 | spin_unlock_irq(shost->host_lock); | |
6774 | ||
2e0fef85 JS |
6775 | lpfc_disc_state_machine(vport, ndlp, elsiocb, |
6776 | NLP_EVT_RCV_PLOGI); | |
858c9f6c | 6777 | |
dea3101e | 6778 | break; |
6779 | case ELS_CMD_FLOGI: | |
858c9f6c JS |
6780 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6781 | "RCV FLOGI: did:x%x/ste:x%x flg:x%x", | |
6782 | did, vport->port_state, ndlp->nlp_flag); | |
6783 | ||
dea3101e | 6784 | phba->fc_stat.elsRcvFLOGI++; |
51ef4c26 | 6785 | lpfc_els_rcv_flogi(vport, elsiocb, ndlp); |
87af33fe | 6786 | if (newnode) |
98c9ea5c | 6787 | lpfc_nlp_put(ndlp); |
dea3101e | 6788 | break; |
6789 | case ELS_CMD_LOGO: | |
858c9f6c JS |
6790 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6791 | "RCV LOGO: did:x%x/ste:x%x flg:x%x", | |
6792 | did, vport->port_state, ndlp->nlp_flag); | |
6793 | ||
dea3101e | 6794 | phba->fc_stat.elsRcvLOGO++; |
ddcc50f0 | 6795 | lpfc_send_els_event(vport, ndlp, payload); |
2e0fef85 | 6796 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 6797 | rjt_err = LSRJT_UNABLE_TPC; |
303f2f9c | 6798 | rjt_exp = LSEXP_NOTHING_MORE; |
dea3101e | 6799 | break; |
6800 | } | |
2e0fef85 | 6801 | lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_LOGO); |
dea3101e | 6802 | break; |
6803 | case ELS_CMD_PRLO: | |
858c9f6c JS |
6804 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6805 | "RCV PRLO: did:x%x/ste:x%x flg:x%x", | |
6806 | did, vport->port_state, ndlp->nlp_flag); | |
6807 | ||
dea3101e | 6808 | phba->fc_stat.elsRcvPRLO++; |
ddcc50f0 | 6809 | lpfc_send_els_event(vport, ndlp, payload); |
2e0fef85 | 6810 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 6811 | rjt_err = LSRJT_UNABLE_TPC; |
303f2f9c | 6812 | rjt_exp = LSEXP_NOTHING_MORE; |
dea3101e | 6813 | break; |
6814 | } | |
2e0fef85 | 6815 | lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLO); |
dea3101e | 6816 | break; |
6817 | case ELS_CMD_RSCN: | |
6818 | phba->fc_stat.elsRcvRSCN++; | |
51ef4c26 | 6819 | lpfc_els_rcv_rscn(vport, elsiocb, ndlp); |
87af33fe | 6820 | if (newnode) |
98c9ea5c | 6821 | lpfc_nlp_put(ndlp); |
dea3101e | 6822 | break; |
6823 | case ELS_CMD_ADISC: | |
858c9f6c JS |
6824 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6825 | "RCV ADISC: did:x%x/ste:x%x flg:x%x", | |
6826 | did, vport->port_state, ndlp->nlp_flag); | |
6827 | ||
ddcc50f0 | 6828 | lpfc_send_els_event(vport, ndlp, payload); |
dea3101e | 6829 | phba->fc_stat.elsRcvADISC++; |
2e0fef85 | 6830 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 6831 | rjt_err = LSRJT_UNABLE_TPC; |
303f2f9c | 6832 | rjt_exp = LSEXP_NOTHING_MORE; |
dea3101e | 6833 | break; |
6834 | } | |
2e0fef85 JS |
6835 | lpfc_disc_state_machine(vport, ndlp, elsiocb, |
6836 | NLP_EVT_RCV_ADISC); | |
dea3101e | 6837 | break; |
6838 | case ELS_CMD_PDISC: | |
858c9f6c JS |
6839 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6840 | "RCV PDISC: did:x%x/ste:x%x flg:x%x", | |
6841 | did, vport->port_state, ndlp->nlp_flag); | |
6842 | ||
dea3101e | 6843 | phba->fc_stat.elsRcvPDISC++; |
2e0fef85 | 6844 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 6845 | rjt_err = LSRJT_UNABLE_TPC; |
303f2f9c | 6846 | rjt_exp = LSEXP_NOTHING_MORE; |
dea3101e | 6847 | break; |
6848 | } | |
2e0fef85 JS |
6849 | lpfc_disc_state_machine(vport, ndlp, elsiocb, |
6850 | NLP_EVT_RCV_PDISC); | |
dea3101e | 6851 | break; |
6852 | case ELS_CMD_FARPR: | |
858c9f6c JS |
6853 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6854 | "RCV FARPR: did:x%x/ste:x%x flg:x%x", | |
6855 | did, vport->port_state, ndlp->nlp_flag); | |
6856 | ||
dea3101e | 6857 | phba->fc_stat.elsRcvFARPR++; |
2e0fef85 | 6858 | lpfc_els_rcv_farpr(vport, elsiocb, ndlp); |
dea3101e | 6859 | break; |
6860 | case ELS_CMD_FARP: | |
858c9f6c JS |
6861 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6862 | "RCV FARP: did:x%x/ste:x%x flg:x%x", | |
6863 | did, vport->port_state, ndlp->nlp_flag); | |
6864 | ||
dea3101e | 6865 | phba->fc_stat.elsRcvFARP++; |
2e0fef85 | 6866 | lpfc_els_rcv_farp(vport, elsiocb, ndlp); |
dea3101e | 6867 | break; |
6868 | case ELS_CMD_FAN: | |
858c9f6c JS |
6869 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6870 | "RCV FAN: did:x%x/ste:x%x flg:x%x", | |
6871 | did, vport->port_state, ndlp->nlp_flag); | |
6872 | ||
dea3101e | 6873 | phba->fc_stat.elsRcvFAN++; |
2e0fef85 | 6874 | lpfc_els_rcv_fan(vport, elsiocb, ndlp); |
dea3101e | 6875 | break; |
dea3101e | 6876 | case ELS_CMD_PRLI: |
858c9f6c JS |
6877 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6878 | "RCV PRLI: did:x%x/ste:x%x flg:x%x", | |
6879 | did, vport->port_state, ndlp->nlp_flag); | |
6880 | ||
dea3101e | 6881 | phba->fc_stat.elsRcvPRLI++; |
2e0fef85 | 6882 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 6883 | rjt_err = LSRJT_UNABLE_TPC; |
303f2f9c | 6884 | rjt_exp = LSEXP_NOTHING_MORE; |
dea3101e | 6885 | break; |
6886 | } | |
2e0fef85 | 6887 | lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLI); |
dea3101e | 6888 | break; |
7bb3b137 | 6889 | case ELS_CMD_LIRR: |
858c9f6c JS |
6890 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6891 | "RCV LIRR: did:x%x/ste:x%x flg:x%x", | |
6892 | did, vport->port_state, ndlp->nlp_flag); | |
6893 | ||
7bb3b137 | 6894 | phba->fc_stat.elsRcvLIRR++; |
2e0fef85 | 6895 | lpfc_els_rcv_lirr(vport, elsiocb, ndlp); |
87af33fe | 6896 | if (newnode) |
98c9ea5c | 6897 | lpfc_nlp_put(ndlp); |
7bb3b137 | 6898 | break; |
12265f68 JS |
6899 | case ELS_CMD_RLS: |
6900 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, | |
6901 | "RCV RLS: did:x%x/ste:x%x flg:x%x", | |
6902 | did, vport->port_state, ndlp->nlp_flag); | |
6903 | ||
6904 | phba->fc_stat.elsRcvRLS++; | |
6905 | lpfc_els_rcv_rls(vport, elsiocb, ndlp); | |
6906 | if (newnode) | |
6907 | lpfc_nlp_put(ndlp); | |
6908 | break; | |
7bb3b137 | 6909 | case ELS_CMD_RPS: |
858c9f6c JS |
6910 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6911 | "RCV RPS: did:x%x/ste:x%x flg:x%x", | |
6912 | did, vport->port_state, ndlp->nlp_flag); | |
6913 | ||
7bb3b137 | 6914 | phba->fc_stat.elsRcvRPS++; |
2e0fef85 | 6915 | lpfc_els_rcv_rps(vport, elsiocb, ndlp); |
87af33fe | 6916 | if (newnode) |
98c9ea5c | 6917 | lpfc_nlp_put(ndlp); |
7bb3b137 JW |
6918 | break; |
6919 | case ELS_CMD_RPL: | |
858c9f6c JS |
6920 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6921 | "RCV RPL: did:x%x/ste:x%x flg:x%x", | |
6922 | did, vport->port_state, ndlp->nlp_flag); | |
6923 | ||
7bb3b137 | 6924 | phba->fc_stat.elsRcvRPL++; |
2e0fef85 | 6925 | lpfc_els_rcv_rpl(vport, elsiocb, ndlp); |
87af33fe | 6926 | if (newnode) |
98c9ea5c | 6927 | lpfc_nlp_put(ndlp); |
7bb3b137 | 6928 | break; |
dea3101e | 6929 | case ELS_CMD_RNID: |
858c9f6c JS |
6930 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6931 | "RCV RNID: did:x%x/ste:x%x flg:x%x", | |
6932 | did, vport->port_state, ndlp->nlp_flag); | |
6933 | ||
dea3101e | 6934 | phba->fc_stat.elsRcvRNID++; |
2e0fef85 | 6935 | lpfc_els_rcv_rnid(vport, elsiocb, ndlp); |
87af33fe | 6936 | if (newnode) |
98c9ea5c | 6937 | lpfc_nlp_put(ndlp); |
dea3101e | 6938 | break; |
12265f68 JS |
6939 | case ELS_CMD_RTV: |
6940 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, | |
6941 | "RCV RTV: did:x%x/ste:x%x flg:x%x", | |
6942 | did, vport->port_state, ndlp->nlp_flag); | |
6943 | phba->fc_stat.elsRcvRTV++; | |
6944 | lpfc_els_rcv_rtv(vport, elsiocb, ndlp); | |
6945 | if (newnode) | |
6946 | lpfc_nlp_put(ndlp); | |
6947 | break; | |
5ffc266e JS |
6948 | case ELS_CMD_RRQ: |
6949 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, | |
6950 | "RCV RRQ: did:x%x/ste:x%x flg:x%x", | |
6951 | did, vport->port_state, ndlp->nlp_flag); | |
6952 | ||
6953 | phba->fc_stat.elsRcvRRQ++; | |
6954 | lpfc_els_rcv_rrq(vport, elsiocb, ndlp); | |
6955 | if (newnode) | |
6956 | lpfc_nlp_put(ndlp); | |
6957 | break; | |
12265f68 JS |
6958 | case ELS_CMD_ECHO: |
6959 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, | |
6960 | "RCV ECHO: did:x%x/ste:x%x flg:x%x", | |
6961 | did, vport->port_state, ndlp->nlp_flag); | |
6962 | ||
6963 | phba->fc_stat.elsRcvECHO++; | |
6964 | lpfc_els_rcv_echo(vport, elsiocb, ndlp); | |
6965 | if (newnode) | |
6966 | lpfc_nlp_put(ndlp); | |
6967 | break; | |
303f2f9c JS |
6968 | case ELS_CMD_REC: |
6969 | /* receive this due to exchange closed */ | |
6970 | rjt_err = LSRJT_UNABLE_TPC; | |
6971 | rjt_exp = LSEXP_INVALID_OX_RX; | |
6972 | break; | |
dea3101e | 6973 | default: |
858c9f6c JS |
6974 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6975 | "RCV ELS cmd: cmd:x%x did:x%x/ste:x%x", | |
6976 | cmd, did, vport->port_state); | |
6977 | ||
dea3101e | 6978 | /* Unsupported ELS command, reject */ |
63e801ce | 6979 | rjt_err = LSRJT_CMD_UNSUPPORTED; |
303f2f9c | 6980 | rjt_exp = LSEXP_NOTHING_MORE; |
dea3101e | 6981 | |
6982 | /* Unknown ELS command <elsCmd> received from NPORT <did> */ | |
e8b62011 JS |
6983 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
6984 | "0115 Unknown ELS command x%x " | |
6985 | "received from NPORT x%x\n", cmd, did); | |
87af33fe | 6986 | if (newnode) |
98c9ea5c | 6987 | lpfc_nlp_put(ndlp); |
dea3101e | 6988 | break; |
6989 | } | |
6990 | ||
6991 | /* check if need to LS_RJT received ELS cmd */ | |
6992 | if (rjt_err) { | |
92d7f7b0 | 6993 | memset(&stat, 0, sizeof(stat)); |
858c9f6c | 6994 | stat.un.b.lsRjtRsnCode = rjt_err; |
303f2f9c | 6995 | stat.un.b.lsRjtRsnCodeExp = rjt_exp; |
858c9f6c JS |
6996 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, elsiocb, ndlp, |
6997 | NULL); | |
dea3101e | 6998 | } |
6999 | ||
d7c255b2 JS |
7000 | lpfc_nlp_put(elsiocb->context1); |
7001 | elsiocb->context1 = NULL; | |
ed957684 JS |
7002 | return; |
7003 | ||
7004 | dropit: | |
98c9ea5c | 7005 | if (vport && !(vport->load_flag & FC_UNLOADING)) |
6fb120a7 JS |
7006 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
7007 | "0111 Dropping received ELS cmd " | |
ed957684 | 7008 | "Data: x%x x%x x%x\n", |
6fb120a7 | 7009 | icmd->ulpStatus, icmd->un.ulpWord[4], icmd->ulpTimeout); |
ed957684 JS |
7010 | phba->fc_stat.elsRcvDrop++; |
7011 | } | |
7012 | ||
e59058c4 | 7013 | /** |
3621a710 | 7014 | * lpfc_els_unsol_event - Process an unsolicited event from an els sli ring |
e59058c4 JS |
7015 | * @phba: pointer to lpfc hba data structure. |
7016 | * @pring: pointer to a SLI ring. | |
7017 | * @elsiocb: pointer to lpfc els iocb data structure. | |
7018 | * | |
7019 | * This routine is used to process an unsolicited event received from a SLI | |
7020 | * (Service Level Interface) ring. The actual processing of the data buffer | |
7021 | * associated with the unsolicited event is done by invoking the routine | |
7022 | * lpfc_els_unsol_buffer() after properly set up the iocb buffer from the | |
7023 | * SLI ring on which the unsolicited event was received. | |
7024 | **/ | |
ed957684 JS |
7025 | void |
7026 | lpfc_els_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
7027 | struct lpfc_iocbq *elsiocb) | |
7028 | { | |
7029 | struct lpfc_vport *vport = phba->pport; | |
ed957684 | 7030 | IOCB_t *icmd = &elsiocb->iocb; |
ed957684 | 7031 | dma_addr_t paddr; |
92d7f7b0 JS |
7032 | struct lpfc_dmabuf *bdeBuf1 = elsiocb->context2; |
7033 | struct lpfc_dmabuf *bdeBuf2 = elsiocb->context3; | |
7034 | ||
d7c255b2 | 7035 | elsiocb->context1 = NULL; |
92d7f7b0 JS |
7036 | elsiocb->context2 = NULL; |
7037 | elsiocb->context3 = NULL; | |
ed957684 | 7038 | |
92d7f7b0 JS |
7039 | if (icmd->ulpStatus == IOSTAT_NEED_BUFFER) { |
7040 | lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ); | |
7041 | } else if (icmd->ulpStatus == IOSTAT_LOCAL_REJECT && | |
e3d2b802 JS |
7042 | (icmd->un.ulpWord[4] & IOERR_PARAM_MASK) == |
7043 | IOERR_RCV_BUFFER_WAITING) { | |
ed957684 JS |
7044 | phba->fc_stat.NoRcvBuf++; |
7045 | /* Not enough posted buffers; Try posting more buffers */ | |
92d7f7b0 | 7046 | if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) |
495a714c | 7047 | lpfc_post_buffer(phba, pring, 0); |
ed957684 JS |
7048 | return; |
7049 | } | |
7050 | ||
92d7f7b0 JS |
7051 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && |
7052 | (icmd->ulpCommand == CMD_IOCB_RCV_ELS64_CX || | |
7053 | icmd->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) { | |
7054 | if (icmd->unsli3.rcvsli3.vpi == 0xffff) | |
7055 | vport = phba->pport; | |
6fb120a7 JS |
7056 | else |
7057 | vport = lpfc_find_vport_by_vpid(phba, | |
6d368e53 | 7058 | icmd->unsli3.rcvsli3.vpi); |
92d7f7b0 | 7059 | } |
6d368e53 | 7060 | |
7f5f3d0d JS |
7061 | /* If there are no BDEs associated |
7062 | * with this IOCB, there is nothing to do. | |
7063 | */ | |
ed957684 JS |
7064 | if (icmd->ulpBdeCount == 0) |
7065 | return; | |
7066 | ||
7f5f3d0d JS |
7067 | /* type of ELS cmd is first 32bit word |
7068 | * in packet | |
7069 | */ | |
ed957684 | 7070 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
92d7f7b0 | 7071 | elsiocb->context2 = bdeBuf1; |
ed957684 JS |
7072 | } else { |
7073 | paddr = getPaddr(icmd->un.cont64[0].addrHigh, | |
7074 | icmd->un.cont64[0].addrLow); | |
92d7f7b0 JS |
7075 | elsiocb->context2 = lpfc_sli_ringpostbuf_get(phba, pring, |
7076 | paddr); | |
ed957684 JS |
7077 | } |
7078 | ||
92d7f7b0 JS |
7079 | lpfc_els_unsol_buffer(phba, pring, vport, elsiocb); |
7080 | /* | |
7081 | * The different unsolicited event handlers would tell us | |
7082 | * if they are done with "mp" by setting context2 to NULL. | |
7083 | */ | |
dea3101e | 7084 | if (elsiocb->context2) { |
92d7f7b0 JS |
7085 | lpfc_in_buf_free(phba, (struct lpfc_dmabuf *)elsiocb->context2); |
7086 | elsiocb->context2 = NULL; | |
dea3101e | 7087 | } |
ed957684 JS |
7088 | |
7089 | /* RCV_ELS64_CX provide for 2 BDEs - process 2nd if included */ | |
92d7f7b0 | 7090 | if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) && |
ed957684 | 7091 | icmd->ulpBdeCount == 2) { |
92d7f7b0 JS |
7092 | elsiocb->context2 = bdeBuf2; |
7093 | lpfc_els_unsol_buffer(phba, pring, vport, elsiocb); | |
ed957684 JS |
7094 | /* free mp if we are done with it */ |
7095 | if (elsiocb->context2) { | |
92d7f7b0 JS |
7096 | lpfc_in_buf_free(phba, elsiocb->context2); |
7097 | elsiocb->context2 = NULL; | |
7098 | } | |
7099 | } | |
7100 | } | |
7101 | ||
e59058c4 | 7102 | /** |
3621a710 | 7103 | * lpfc_do_scr_ns_plogi - Issue a plogi to the name server for scr |
e59058c4 JS |
7104 | * @phba: pointer to lpfc hba data structure. |
7105 | * @vport: pointer to a virtual N_Port data structure. | |
7106 | * | |
7107 | * This routine issues a Port Login (PLOGI) to the Name Server with | |
7108 | * State Change Request (SCR) for a @vport. This routine will create an | |
7109 | * ndlp for the Name Server associated to the @vport if such node does | |
7110 | * not already exist. The PLOGI to Name Server is issued by invoking the | |
7111 | * lpfc_issue_els_plogi() routine. If Fabric-Device Management Interface | |
7112 | * (FDMI) is configured to the @vport, a FDMI node will be created and | |
7113 | * the PLOGI to FDMI is issued by invoking lpfc_issue_els_plogi() routine. | |
7114 | **/ | |
92d7f7b0 JS |
7115 | void |
7116 | lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport) | |
7117 | { | |
7118 | struct lpfc_nodelist *ndlp, *ndlp_fdmi; | |
92494144 JS |
7119 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
7120 | ||
7121 | /* | |
7122 | * If lpfc_delay_discovery parameter is set and the clean address | |
7123 | * bit is cleared and fc fabric parameters chenged, delay FC NPort | |
7124 | * discovery. | |
7125 | */ | |
7126 | spin_lock_irq(shost->host_lock); | |
7127 | if (vport->fc_flag & FC_DISC_DELAYED) { | |
7128 | spin_unlock_irq(shost->host_lock); | |
18775708 JS |
7129 | lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, |
7130 | "3334 Delay fc port discovery for %d seconds\n", | |
7131 | phba->fc_ratov); | |
92494144 | 7132 | mod_timer(&vport->delayed_disc_tmo, |
256ec0d0 | 7133 | jiffies + msecs_to_jiffies(1000 * phba->fc_ratov)); |
92494144 JS |
7134 | return; |
7135 | } | |
7136 | spin_unlock_irq(shost->host_lock); | |
92d7f7b0 JS |
7137 | |
7138 | ndlp = lpfc_findnode_did(vport, NameServer_DID); | |
7139 | if (!ndlp) { | |
7140 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
7141 | if (!ndlp) { | |
76a95d75 | 7142 | if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { |
92d7f7b0 JS |
7143 | lpfc_disc_start(vport); |
7144 | return; | |
7145 | } | |
7146 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
e8b62011 JS |
7147 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
7148 | "0251 NameServer login: no memory\n"); | |
92d7f7b0 JS |
7149 | return; |
7150 | } | |
7151 | lpfc_nlp_init(vport, ndlp, NameServer_DID); | |
e47c9093 JS |
7152 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { |
7153 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
7154 | if (!ndlp) { | |
76a95d75 | 7155 | if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { |
e47c9093 JS |
7156 | lpfc_disc_start(vport); |
7157 | return; | |
7158 | } | |
7159 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
7160 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
7161 | "0348 NameServer login: node freed\n"); | |
7162 | return; | |
7163 | } | |
92d7f7b0 | 7164 | } |
58da1ffb | 7165 | ndlp->nlp_type |= NLP_FABRIC; |
92d7f7b0 JS |
7166 | |
7167 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); | |
7168 | ||
7169 | if (lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0)) { | |
7170 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
e8b62011 JS |
7171 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
7172 | "0252 Cannot issue NameServer login\n"); | |
92d7f7b0 JS |
7173 | return; |
7174 | } | |
7175 | ||
3de2a653 | 7176 | if (vport->cfg_fdmi_on) { |
63e801ce JS |
7177 | /* If this is the first time, allocate an ndlp and initialize |
7178 | * it. Otherwise, make sure the node is enabled and then do the | |
7179 | * login. | |
7180 | */ | |
7181 | ndlp_fdmi = lpfc_findnode_did(vport, FDMI_DID); | |
7182 | if (!ndlp_fdmi) { | |
7183 | ndlp_fdmi = mempool_alloc(phba->nlp_mem_pool, | |
7184 | GFP_KERNEL); | |
7185 | if (ndlp_fdmi) { | |
7186 | lpfc_nlp_init(vport, ndlp_fdmi, FDMI_DID); | |
7187 | ndlp_fdmi->nlp_type |= NLP_FABRIC; | |
7188 | } else | |
7189 | return; | |
7190 | } | |
7191 | if (!NLP_CHK_NODE_ACT(ndlp_fdmi)) | |
7192 | ndlp_fdmi = lpfc_enable_node(vport, | |
7193 | ndlp_fdmi, | |
7194 | NLP_STE_NPR_NODE); | |
7195 | ||
92d7f7b0 | 7196 | if (ndlp_fdmi) { |
58da1ffb | 7197 | lpfc_nlp_set_state(vport, ndlp_fdmi, |
63e801ce JS |
7198 | NLP_STE_PLOGI_ISSUE); |
7199 | lpfc_issue_els_plogi(vport, ndlp_fdmi->nlp_DID, 0); | |
92d7f7b0 JS |
7200 | } |
7201 | } | |
92d7f7b0 JS |
7202 | } |
7203 | ||
e59058c4 | 7204 | /** |
3621a710 | 7205 | * lpfc_cmpl_reg_new_vport - Completion callback function to register new vport |
e59058c4 JS |
7206 | * @phba: pointer to lpfc hba data structure. |
7207 | * @pmb: pointer to the driver internal queue element for mailbox command. | |
7208 | * | |
7209 | * This routine is the completion callback function to register new vport | |
7210 | * mailbox command. If the new vport mailbox command completes successfully, | |
7211 | * the fabric registration login shall be performed on physical port (the | |
7212 | * new vport created is actually a physical port, with VPI 0) or the port | |
7213 | * login to Name Server for State Change Request (SCR) will be performed | |
7214 | * on virtual port (real virtual port, with VPI greater than 0). | |
7215 | **/ | |
92d7f7b0 JS |
7216 | static void |
7217 | lpfc_cmpl_reg_new_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) | |
7218 | { | |
7219 | struct lpfc_vport *vport = pmb->vport; | |
7220 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
7221 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; | |
04c68496 | 7222 | MAILBOX_t *mb = &pmb->u.mb; |
695a814e | 7223 | int rc; |
92d7f7b0 | 7224 | |
09372820 | 7225 | spin_lock_irq(shost->host_lock); |
92d7f7b0 | 7226 | vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; |
09372820 | 7227 | spin_unlock_irq(shost->host_lock); |
92d7f7b0 JS |
7228 | |
7229 | if (mb->mbxStatus) { | |
e8b62011 | 7230 | lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, |
38b92ef8 JS |
7231 | "0915 Register VPI failed : Status: x%x" |
7232 | " upd bit: x%x \n", mb->mbxStatus, | |
7233 | mb->un.varRegVpi.upd); | |
7234 | if (phba->sli_rev == LPFC_SLI_REV4 && | |
7235 | mb->un.varRegVpi.upd) | |
7236 | goto mbox_err_exit ; | |
92d7f7b0 JS |
7237 | |
7238 | switch (mb->mbxStatus) { | |
7239 | case 0x11: /* unsupported feature */ | |
7240 | case 0x9603: /* max_vpi exceeded */ | |
7f5f3d0d | 7241 | case 0x9602: /* Link event since CLEAR_LA */ |
92d7f7b0 JS |
7242 | /* giving up on vport registration */ |
7243 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
7244 | spin_lock_irq(shost->host_lock); | |
7245 | vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
7246 | spin_unlock_irq(shost->host_lock); | |
7247 | lpfc_can_disctmo(vport); | |
7248 | break; | |
695a814e JS |
7249 | /* If reg_vpi fail with invalid VPI status, re-init VPI */ |
7250 | case 0x20: | |
7251 | spin_lock_irq(shost->host_lock); | |
7252 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; | |
7253 | spin_unlock_irq(shost->host_lock); | |
7254 | lpfc_init_vpi(phba, pmb, vport->vpi); | |
7255 | pmb->vport = vport; | |
7256 | pmb->mbox_cmpl = lpfc_init_vpi_cmpl; | |
7257 | rc = lpfc_sli_issue_mbox(phba, pmb, | |
7258 | MBX_NOWAIT); | |
7259 | if (rc == MBX_NOT_FINISHED) { | |
7260 | lpfc_printf_vlog(vport, | |
7261 | KERN_ERR, LOG_MBOX, | |
7262 | "2732 Failed to issue INIT_VPI" | |
7263 | " mailbox command\n"); | |
7264 | } else { | |
7265 | lpfc_nlp_put(ndlp); | |
7266 | return; | |
7267 | } | |
7268 | ||
92d7f7b0 JS |
7269 | default: |
7270 | /* Try to recover from this error */ | |
5af5eee7 JS |
7271 | if (phba->sli_rev == LPFC_SLI_REV4) |
7272 | lpfc_sli4_unreg_all_rpis(vport); | |
92d7f7b0 | 7273 | lpfc_mbx_unreg_vpi(vport); |
09372820 | 7274 | spin_lock_irq(shost->host_lock); |
92d7f7b0 | 7275 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; |
09372820 | 7276 | spin_unlock_irq(shost->host_lock); |
4b40c59e JS |
7277 | if (vport->port_type == LPFC_PHYSICAL_PORT |
7278 | && !(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) | |
76a95d75 | 7279 | lpfc_issue_init_vfi(vport); |
7f5f3d0d JS |
7280 | else |
7281 | lpfc_initial_fdisc(vport); | |
92d7f7b0 JS |
7282 | break; |
7283 | } | |
92d7f7b0 | 7284 | } else { |
695a814e | 7285 | spin_lock_irq(shost->host_lock); |
1987807d | 7286 | vport->vpi_state |= LPFC_VPI_REGISTERED; |
695a814e JS |
7287 | spin_unlock_irq(shost->host_lock); |
7288 | if (vport == phba->pport) { | |
6fb120a7 JS |
7289 | if (phba->sli_rev < LPFC_SLI_REV4) |
7290 | lpfc_issue_fabric_reglogin(vport); | |
695a814e | 7291 | else { |
fc2b989b JS |
7292 | /* |
7293 | * If the physical port is instantiated using | |
7294 | * FDISC, do not start vport discovery. | |
7295 | */ | |
7296 | if (vport->port_state != LPFC_FDISC) | |
7297 | lpfc_start_fdiscs(phba); | |
695a814e JS |
7298 | lpfc_do_scr_ns_plogi(phba, vport); |
7299 | } | |
7300 | } else | |
92d7f7b0 JS |
7301 | lpfc_do_scr_ns_plogi(phba, vport); |
7302 | } | |
38b92ef8 | 7303 | mbox_err_exit: |
fa4066b6 JS |
7304 | /* Now, we decrement the ndlp reference count held for this |
7305 | * callback function | |
7306 | */ | |
7307 | lpfc_nlp_put(ndlp); | |
7308 | ||
92d7f7b0 JS |
7309 | mempool_free(pmb, phba->mbox_mem_pool); |
7310 | return; | |
7311 | } | |
7312 | ||
e59058c4 | 7313 | /** |
3621a710 | 7314 | * lpfc_register_new_vport - Register a new vport with a HBA |
e59058c4 JS |
7315 | * @phba: pointer to lpfc hba data structure. |
7316 | * @vport: pointer to a host virtual N_Port data structure. | |
7317 | * @ndlp: pointer to a node-list data structure. | |
7318 | * | |
7319 | * This routine registers the @vport as a new virtual port with a HBA. | |
7320 | * It is done through a registering vpi mailbox command. | |
7321 | **/ | |
695a814e | 7322 | void |
92d7f7b0 JS |
7323 | lpfc_register_new_vport(struct lpfc_hba *phba, struct lpfc_vport *vport, |
7324 | struct lpfc_nodelist *ndlp) | |
7325 | { | |
09372820 | 7326 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
92d7f7b0 JS |
7327 | LPFC_MBOXQ_t *mbox; |
7328 | ||
7329 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
7330 | if (mbox) { | |
6fb120a7 | 7331 | lpfc_reg_vpi(vport, mbox); |
92d7f7b0 JS |
7332 | mbox->vport = vport; |
7333 | mbox->context2 = lpfc_nlp_get(ndlp); | |
7334 | mbox->mbox_cmpl = lpfc_cmpl_reg_new_vport; | |
0b727fea | 7335 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) |
92d7f7b0 | 7336 | == MBX_NOT_FINISHED) { |
fa4066b6 JS |
7337 | /* mailbox command not success, decrement ndlp |
7338 | * reference count for this command | |
7339 | */ | |
7340 | lpfc_nlp_put(ndlp); | |
92d7f7b0 | 7341 | mempool_free(mbox, phba->mbox_mem_pool); |
92d7f7b0 | 7342 | |
e8b62011 JS |
7343 | lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, |
7344 | "0253 Register VPI: Can't send mbox\n"); | |
fa4066b6 | 7345 | goto mbox_err_exit; |
92d7f7b0 JS |
7346 | } |
7347 | } else { | |
e8b62011 JS |
7348 | lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, |
7349 | "0254 Register VPI: no memory\n"); | |
fa4066b6 | 7350 | goto mbox_err_exit; |
92d7f7b0 | 7351 | } |
fa4066b6 JS |
7352 | return; |
7353 | ||
7354 | mbox_err_exit: | |
7355 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
7356 | spin_lock_irq(shost->host_lock); | |
7357 | vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; | |
7358 | spin_unlock_irq(shost->host_lock); | |
7359 | return; | |
92d7f7b0 JS |
7360 | } |
7361 | ||
695a814e | 7362 | /** |
0c9ab6f5 | 7363 | * lpfc_cancel_all_vport_retry_delay_timer - Cancel all vport retry delay timer |
695a814e JS |
7364 | * @phba: pointer to lpfc hba data structure. |
7365 | * | |
0c9ab6f5 | 7366 | * This routine cancels the retry delay timers to all the vports. |
695a814e JS |
7367 | **/ |
7368 | void | |
0c9ab6f5 | 7369 | lpfc_cancel_all_vport_retry_delay_timer(struct lpfc_hba *phba) |
695a814e JS |
7370 | { |
7371 | struct lpfc_vport **vports; | |
7372 | struct lpfc_nodelist *ndlp; | |
695a814e | 7373 | uint32_t link_state; |
0c9ab6f5 | 7374 | int i; |
695a814e JS |
7375 | |
7376 | /* Treat this failure as linkdown for all vports */ | |
7377 | link_state = phba->link_state; | |
7378 | lpfc_linkdown(phba); | |
7379 | phba->link_state = link_state; | |
7380 | ||
7381 | vports = lpfc_create_vport_work_array(phba); | |
7382 | ||
7383 | if (vports) { | |
7384 | for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { | |
7385 | ndlp = lpfc_findnode_did(vports[i], Fabric_DID); | |
7386 | if (ndlp) | |
7387 | lpfc_cancel_retry_delay_tmo(vports[i], ndlp); | |
7388 | lpfc_els_flush_cmd(vports[i]); | |
7389 | } | |
7390 | lpfc_destroy_vport_work_array(phba, vports); | |
7391 | } | |
0c9ab6f5 JS |
7392 | } |
7393 | ||
7394 | /** | |
7395 | * lpfc_retry_pport_discovery - Start timer to retry FLOGI. | |
7396 | * @phba: pointer to lpfc hba data structure. | |
7397 | * | |
7398 | * This routine abort all pending discovery commands and | |
7399 | * start a timer to retry FLOGI for the physical port | |
7400 | * discovery. | |
7401 | **/ | |
7402 | void | |
7403 | lpfc_retry_pport_discovery(struct lpfc_hba *phba) | |
7404 | { | |
7405 | struct lpfc_nodelist *ndlp; | |
7406 | struct Scsi_Host *shost; | |
7407 | ||
7408 | /* Cancel the all vports retry delay retry timers */ | |
7409 | lpfc_cancel_all_vport_retry_delay_timer(phba); | |
695a814e JS |
7410 | |
7411 | /* If fabric require FLOGI, then re-instantiate physical login */ | |
7412 | ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); | |
7413 | if (!ndlp) | |
7414 | return; | |
7415 | ||
695a814e | 7416 | shost = lpfc_shost_from_vport(phba->pport); |
256ec0d0 | 7417 | mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000)); |
695a814e JS |
7418 | spin_lock_irq(shost->host_lock); |
7419 | ndlp->nlp_flag |= NLP_DELAY_TMO; | |
7420 | spin_unlock_irq(shost->host_lock); | |
7421 | ndlp->nlp_last_elscmd = ELS_CMD_FLOGI; | |
7422 | phba->pport->port_state = LPFC_FLOGI; | |
7423 | return; | |
7424 | } | |
7425 | ||
7426 | /** | |
7427 | * lpfc_fabric_login_reqd - Check if FLOGI required. | |
7428 | * @phba: pointer to lpfc hba data structure. | |
7429 | * @cmdiocb: pointer to FDISC command iocb. | |
7430 | * @rspiocb: pointer to FDISC response iocb. | |
7431 | * | |
7432 | * This routine checks if a FLOGI is reguired for FDISC | |
7433 | * to succeed. | |
7434 | **/ | |
7435 | static int | |
7436 | lpfc_fabric_login_reqd(struct lpfc_hba *phba, | |
7437 | struct lpfc_iocbq *cmdiocb, | |
7438 | struct lpfc_iocbq *rspiocb) | |
7439 | { | |
7440 | ||
7441 | if ((rspiocb->iocb.ulpStatus != IOSTAT_FABRIC_RJT) || | |
7442 | (rspiocb->iocb.un.ulpWord[4] != RJT_LOGIN_REQUIRED)) | |
7443 | return 0; | |
7444 | else | |
7445 | return 1; | |
7446 | } | |
7447 | ||
e59058c4 | 7448 | /** |
3621a710 | 7449 | * lpfc_cmpl_els_fdisc - Completion function for fdisc iocb command |
e59058c4 JS |
7450 | * @phba: pointer to lpfc hba data structure. |
7451 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
7452 | * @rspiocb: pointer to lpfc response iocb data structure. | |
7453 | * | |
7454 | * This routine is the completion callback function to a Fabric Discover | |
7455 | * (FDISC) ELS command. Since all the FDISC ELS commands are issued | |
7456 | * single threaded, each FDISC completion callback function will reset | |
7457 | * the discovery timer for all vports such that the timers will not get | |
7458 | * unnecessary timeout. The function checks the FDISC IOCB status. If error | |
7459 | * detected, the vport will be set to FC_VPORT_FAILED state. Otherwise,the | |
7460 | * vport will set to FC_VPORT_ACTIVE state. It then checks whether the DID | |
7461 | * assigned to the vport has been changed with the completion of the FDISC | |
7462 | * command. If so, both RPI (Remote Port Index) and VPI (Virtual Port Index) | |
7463 | * are unregistered from the HBA, and then the lpfc_register_new_vport() | |
7464 | * routine is invoked to register new vport with the HBA. Otherwise, the | |
7465 | * lpfc_do_scr_ns_plogi() routine is invoked to issue a PLOGI to the Name | |
7466 | * Server for State Change Request (SCR). | |
7467 | **/ | |
92d7f7b0 JS |
7468 | static void |
7469 | lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
7470 | struct lpfc_iocbq *rspiocb) | |
7471 | { | |
7472 | struct lpfc_vport *vport = cmdiocb->vport; | |
7473 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
7474 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
7475 | struct lpfc_nodelist *np; | |
7476 | struct lpfc_nodelist *next_np; | |
7477 | IOCB_t *irsp = &rspiocb->iocb; | |
7478 | struct lpfc_iocbq *piocb; | |
92494144 JS |
7479 | struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp; |
7480 | struct serv_parm *sp; | |
7481 | uint8_t fabric_param_changed; | |
92d7f7b0 | 7482 | |
e8b62011 JS |
7483 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
7484 | "0123 FDISC completes. x%x/x%x prevDID: x%x\n", | |
7485 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
7486 | vport->fc_prevDID); | |
92d7f7b0 JS |
7487 | /* Since all FDISCs are being single threaded, we |
7488 | * must reset the discovery timer for ALL vports | |
7489 | * waiting to send FDISC when one completes. | |
7490 | */ | |
7491 | list_for_each_entry(piocb, &phba->fabric_iocb_list, list) { | |
7492 | lpfc_set_disctmo(piocb->vport); | |
7493 | } | |
7494 | ||
858c9f6c JS |
7495 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
7496 | "FDISC cmpl: status:x%x/x%x prevdid:x%x", | |
7497 | irsp->ulpStatus, irsp->un.ulpWord[4], vport->fc_prevDID); | |
7498 | ||
92d7f7b0 | 7499 | if (irsp->ulpStatus) { |
695a814e JS |
7500 | |
7501 | if (lpfc_fabric_login_reqd(phba, cmdiocb, rspiocb)) { | |
7502 | lpfc_retry_pport_discovery(phba); | |
7503 | goto out; | |
7504 | } | |
7505 | ||
92d7f7b0 JS |
7506 | /* Check for retry */ |
7507 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) | |
7508 | goto out; | |
92d7f7b0 | 7509 | /* FDISC failed */ |
e8b62011 | 7510 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
6b5151fd | 7511 | "0126 FDISC failed. (x%x/x%x)\n", |
e8b62011 | 7512 | irsp->ulpStatus, irsp->un.ulpWord[4]); |
d7c255b2 JS |
7513 | goto fdisc_failed; |
7514 | } | |
d7c255b2 | 7515 | spin_lock_irq(shost->host_lock); |
695a814e | 7516 | vport->fc_flag &= ~FC_VPORT_CVL_RCVD; |
4b40c59e | 7517 | vport->fc_flag &= ~FC_VPORT_LOGO_RCVD; |
d7c255b2 | 7518 | vport->fc_flag |= FC_FABRIC; |
76a95d75 | 7519 | if (vport->phba->fc_topology == LPFC_TOPOLOGY_LOOP) |
d7c255b2 JS |
7520 | vport->fc_flag |= FC_PUBLIC_LOOP; |
7521 | spin_unlock_irq(shost->host_lock); | |
92d7f7b0 | 7522 | |
d7c255b2 JS |
7523 | vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID; |
7524 | lpfc_vport_set_state(vport, FC_VPORT_ACTIVE); | |
92494144 | 7525 | prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); |
a2fc4aef JS |
7526 | if (!prsp) |
7527 | goto out; | |
92494144 JS |
7528 | sp = prsp->virt + sizeof(uint32_t); |
7529 | fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp); | |
7530 | memcpy(&vport->fabric_portname, &sp->portName, | |
7531 | sizeof(struct lpfc_name)); | |
7532 | memcpy(&vport->fabric_nodename, &sp->nodeName, | |
7533 | sizeof(struct lpfc_name)); | |
7534 | if (fabric_param_changed && | |
d7c255b2 JS |
7535 | !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { |
7536 | /* If our NportID changed, we need to ensure all | |
7537 | * remaining NPORTs get unreg_login'ed so we can | |
7538 | * issue unreg_vpi. | |
7539 | */ | |
7540 | list_for_each_entry_safe(np, next_np, | |
7541 | &vport->fc_nodes, nlp_listp) { | |
7542 | if (!NLP_CHK_NODE_ACT(ndlp) || | |
7543 | (np->nlp_state != NLP_STE_NPR_NODE) || | |
7544 | !(np->nlp_flag & NLP_NPR_ADISC)) | |
7545 | continue; | |
09372820 | 7546 | spin_lock_irq(shost->host_lock); |
d7c255b2 | 7547 | np->nlp_flag &= ~NLP_NPR_ADISC; |
09372820 | 7548 | spin_unlock_irq(shost->host_lock); |
d7c255b2 | 7549 | lpfc_unreg_rpi(vport, np); |
92d7f7b0 | 7550 | } |
78730cfe | 7551 | lpfc_cleanup_pending_mbox(vport); |
5af5eee7 JS |
7552 | |
7553 | if (phba->sli_rev == LPFC_SLI_REV4) | |
7554 | lpfc_sli4_unreg_all_rpis(vport); | |
7555 | ||
d7c255b2 JS |
7556 | lpfc_mbx_unreg_vpi(vport); |
7557 | spin_lock_irq(shost->host_lock); | |
7558 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; | |
0f65ff68 JS |
7559 | if (phba->sli_rev == LPFC_SLI_REV4) |
7560 | vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; | |
4b40c59e JS |
7561 | else |
7562 | vport->fc_flag |= FC_LOGO_RCVD_DID_CHNG; | |
d7c255b2 | 7563 | spin_unlock_irq(shost->host_lock); |
38b92ef8 JS |
7564 | } else if ((phba->sli_rev == LPFC_SLI_REV4) && |
7565 | !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { | |
7566 | /* | |
7567 | * Driver needs to re-reg VPI in order for f/w | |
7568 | * to update the MAC address. | |
7569 | */ | |
7570 | lpfc_register_new_vport(phba, vport, ndlp); | |
5ac6b303 | 7571 | goto out; |
92d7f7b0 JS |
7572 | } |
7573 | ||
ecfd03c6 JS |
7574 | if (vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI) |
7575 | lpfc_issue_init_vpi(vport); | |
7576 | else if (vport->fc_flag & FC_VPORT_NEEDS_REG_VPI) | |
d7c255b2 JS |
7577 | lpfc_register_new_vport(phba, vport, ndlp); |
7578 | else | |
7579 | lpfc_do_scr_ns_plogi(phba, vport); | |
7580 | goto out; | |
7581 | fdisc_failed: | |
7582 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
7583 | /* Cancel discovery timer */ | |
7584 | lpfc_can_disctmo(vport); | |
7585 | lpfc_nlp_put(ndlp); | |
92d7f7b0 JS |
7586 | out: |
7587 | lpfc_els_free_iocb(phba, cmdiocb); | |
7588 | } | |
7589 | ||
e59058c4 | 7590 | /** |
3621a710 | 7591 | * lpfc_issue_els_fdisc - Issue a fdisc iocb command |
e59058c4 JS |
7592 | * @vport: pointer to a virtual N_Port data structure. |
7593 | * @ndlp: pointer to a node-list data structure. | |
7594 | * @retry: number of retries to the command IOCB. | |
7595 | * | |
7596 | * This routine prepares and issues a Fabric Discover (FDISC) IOCB to | |
7597 | * a remote node (@ndlp) off a @vport. It uses the lpfc_issue_fabric_iocb() | |
7598 | * routine to issue the IOCB, which makes sure only one outstanding fabric | |
7599 | * IOCB will be sent off HBA at any given time. | |
7600 | * | |
7601 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
7602 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
7603 | * will be stored into the context1 field of the IOCB for the completion | |
7604 | * callback function to the FDISC ELS command. | |
7605 | * | |
7606 | * Return code | |
7607 | * 0 - Successfully issued fdisc iocb command | |
7608 | * 1 - Failed to issue fdisc iocb command | |
7609 | **/ | |
a6ababd2 | 7610 | static int |
92d7f7b0 JS |
7611 | lpfc_issue_els_fdisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
7612 | uint8_t retry) | |
7613 | { | |
7614 | struct lpfc_hba *phba = vport->phba; | |
7615 | IOCB_t *icmd; | |
7616 | struct lpfc_iocbq *elsiocb; | |
7617 | struct serv_parm *sp; | |
7618 | uint8_t *pcmd; | |
7619 | uint16_t cmdsize; | |
7620 | int did = ndlp->nlp_DID; | |
7621 | int rc; | |
92d7f7b0 | 7622 | |
5ffc266e | 7623 | vport->port_state = LPFC_FDISC; |
6b5151fd | 7624 | vport->fc_myDID = 0; |
92d7f7b0 JS |
7625 | cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); |
7626 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did, | |
7627 | ELS_CMD_FDISC); | |
7628 | if (!elsiocb) { | |
92d7f7b0 | 7629 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
e8b62011 JS |
7630 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
7631 | "0255 Issue FDISC: no IOCB\n"); | |
92d7f7b0 JS |
7632 | return 1; |
7633 | } | |
7634 | ||
7635 | icmd = &elsiocb->iocb; | |
7636 | icmd->un.elsreq64.myID = 0; | |
7637 | icmd->un.elsreq64.fl = 1; | |
7638 | ||
73d91e50 JS |
7639 | /* |
7640 | * SLI3 ports require a different context type value than SLI4. | |
7641 | * Catch SLI3 ports here and override the prep. | |
7642 | */ | |
7643 | if (phba->sli_rev == LPFC_SLI_REV3) { | |
f1126688 JS |
7644 | icmd->ulpCt_h = 1; |
7645 | icmd->ulpCt_l = 0; | |
7646 | } | |
92d7f7b0 JS |
7647 | |
7648 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
7649 | *((uint32_t *) (pcmd)) = ELS_CMD_FDISC; | |
7650 | pcmd += sizeof(uint32_t); /* CSP Word 1 */ | |
7651 | memcpy(pcmd, &vport->phba->pport->fc_sparam, sizeof(struct serv_parm)); | |
7652 | sp = (struct serv_parm *) pcmd; | |
7653 | /* Setup CSPs accordingly for Fabric */ | |
7654 | sp->cmn.e_d_tov = 0; | |
7655 | sp->cmn.w2.r_a_tov = 0; | |
df9e1b59 | 7656 | sp->cmn.virtual_fabric_support = 0; |
92d7f7b0 JS |
7657 | sp->cls1.classValid = 0; |
7658 | sp->cls2.seqDelivery = 1; | |
7659 | sp->cls3.seqDelivery = 1; | |
7660 | ||
7661 | pcmd += sizeof(uint32_t); /* CSP Word 2 */ | |
7662 | pcmd += sizeof(uint32_t); /* CSP Word 3 */ | |
7663 | pcmd += sizeof(uint32_t); /* CSP Word 4 */ | |
7664 | pcmd += sizeof(uint32_t); /* Port Name */ | |
7665 | memcpy(pcmd, &vport->fc_portname, 8); | |
7666 | pcmd += sizeof(uint32_t); /* Node Name */ | |
7667 | pcmd += sizeof(uint32_t); /* Node Name */ | |
7668 | memcpy(pcmd, &vport->fc_nodename, 8); | |
7669 | ||
7670 | lpfc_set_disctmo(vport); | |
7671 | ||
7672 | phba->fc_stat.elsXmitFDISC++; | |
7673 | elsiocb->iocb_cmpl = lpfc_cmpl_els_fdisc; | |
7674 | ||
858c9f6c JS |
7675 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
7676 | "Issue FDISC: did:x%x", | |
7677 | did, 0, 0); | |
7678 | ||
92d7f7b0 JS |
7679 | rc = lpfc_issue_fabric_iocb(phba, elsiocb); |
7680 | if (rc == IOCB_ERROR) { | |
7681 | lpfc_els_free_iocb(phba, elsiocb); | |
92d7f7b0 | 7682 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
e8b62011 JS |
7683 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
7684 | "0256 Issue FDISC: Cannot send IOCB\n"); | |
92d7f7b0 JS |
7685 | return 1; |
7686 | } | |
7687 | lpfc_vport_set_state(vport, FC_VPORT_INITIALIZING); | |
92d7f7b0 JS |
7688 | return 0; |
7689 | } | |
7690 | ||
e59058c4 | 7691 | /** |
3621a710 | 7692 | * lpfc_cmpl_els_npiv_logo - Completion function with vport logo |
e59058c4 JS |
7693 | * @phba: pointer to lpfc hba data structure. |
7694 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
7695 | * @rspiocb: pointer to lpfc response iocb data structure. | |
7696 | * | |
7697 | * This routine is the completion callback function to the issuing of a LOGO | |
7698 | * ELS command off a vport. It frees the command IOCB and then decrement the | |
7699 | * reference count held on ndlp for this completion function, indicating that | |
7700 | * the reference to the ndlp is no long needed. Note that the | |
7701 | * lpfc_els_free_iocb() routine decrements the ndlp reference held for this | |
7702 | * callback function and an additional explicit ndlp reference decrementation | |
7703 | * will trigger the actual release of the ndlp. | |
7704 | **/ | |
92d7f7b0 JS |
7705 | static void |
7706 | lpfc_cmpl_els_npiv_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
7707 | struct lpfc_iocbq *rspiocb) | |
7708 | { | |
7709 | struct lpfc_vport *vport = cmdiocb->vport; | |
858c9f6c | 7710 | IOCB_t *irsp; |
e47c9093 | 7711 | struct lpfc_nodelist *ndlp; |
9589b062 | 7712 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
858c9f6c | 7713 | |
9589b062 | 7714 | ndlp = (struct lpfc_nodelist *)cmdiocb->context1; |
858c9f6c JS |
7715 | irsp = &rspiocb->iocb; |
7716 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, | |
7717 | "LOGO npiv cmpl: status:x%x/x%x did:x%x", | |
7718 | irsp->ulpStatus, irsp->un.ulpWord[4], irsp->un.rcvels.remoteID); | |
92d7f7b0 JS |
7719 | |
7720 | lpfc_els_free_iocb(phba, cmdiocb); | |
7721 | vport->unreg_vpi_cmpl = VPORT_ERROR; | |
e47c9093 JS |
7722 | |
7723 | /* Trigger the release of the ndlp after logo */ | |
7724 | lpfc_nlp_put(ndlp); | |
9589b062 JS |
7725 | |
7726 | /* NPIV LOGO completes to NPort <nlp_DID> */ | |
7727 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
7728 | "2928 NPIV LOGO completes to NPort x%x " | |
7729 | "Data: x%x x%x x%x x%x\n", | |
7730 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
7731 | irsp->ulpTimeout, vport->num_disc_nodes); | |
7732 | ||
7733 | if (irsp->ulpStatus == IOSTAT_SUCCESS) { | |
7734 | spin_lock_irq(shost->host_lock); | |
7735 | vport->fc_flag &= ~FC_FABRIC; | |
7736 | spin_unlock_irq(shost->host_lock); | |
7737 | } | |
92d7f7b0 JS |
7738 | } |
7739 | ||
e59058c4 | 7740 | /** |
3621a710 | 7741 | * lpfc_issue_els_npiv_logo - Issue a logo off a vport |
e59058c4 JS |
7742 | * @vport: pointer to a virtual N_Port data structure. |
7743 | * @ndlp: pointer to a node-list data structure. | |
7744 | * | |
7745 | * This routine issues a LOGO ELS command to an @ndlp off a @vport. | |
7746 | * | |
7747 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
7748 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
7749 | * will be stored into the context1 field of the IOCB for the completion | |
7750 | * callback function to the LOGO ELS command. | |
7751 | * | |
7752 | * Return codes | |
7753 | * 0 - Successfully issued logo off the @vport | |
7754 | * 1 - Failed to issue logo off the @vport | |
7755 | **/ | |
92d7f7b0 JS |
7756 | int |
7757 | lpfc_issue_els_npiv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) | |
7758 | { | |
7759 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
7760 | struct lpfc_hba *phba = vport->phba; | |
92d7f7b0 JS |
7761 | IOCB_t *icmd; |
7762 | struct lpfc_iocbq *elsiocb; | |
7763 | uint8_t *pcmd; | |
7764 | uint16_t cmdsize; | |
7765 | ||
7766 | cmdsize = 2 * sizeof(uint32_t) + sizeof(struct lpfc_name); | |
7767 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, ndlp->nlp_DID, | |
7768 | ELS_CMD_LOGO); | |
7769 | if (!elsiocb) | |
7770 | return 1; | |
7771 | ||
7772 | icmd = &elsiocb->iocb; | |
7773 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
7774 | *((uint32_t *) (pcmd)) = ELS_CMD_LOGO; | |
7775 | pcmd += sizeof(uint32_t); | |
7776 | ||
7777 | /* Fill in LOGO payload */ | |
7778 | *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID); | |
7779 | pcmd += sizeof(uint32_t); | |
7780 | memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name)); | |
7781 | ||
858c9f6c JS |
7782 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
7783 | "Issue LOGO npiv did:x%x flg:x%x", | |
7784 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
7785 | ||
92d7f7b0 JS |
7786 | elsiocb->iocb_cmpl = lpfc_cmpl_els_npiv_logo; |
7787 | spin_lock_irq(shost->host_lock); | |
7788 | ndlp->nlp_flag |= NLP_LOGO_SND; | |
7789 | spin_unlock_irq(shost->host_lock); | |
3772a991 JS |
7790 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
7791 | IOCB_ERROR) { | |
92d7f7b0 JS |
7792 | spin_lock_irq(shost->host_lock); |
7793 | ndlp->nlp_flag &= ~NLP_LOGO_SND; | |
7794 | spin_unlock_irq(shost->host_lock); | |
7795 | lpfc_els_free_iocb(phba, elsiocb); | |
7796 | return 1; | |
7797 | } | |
7798 | return 0; | |
7799 | } | |
7800 | ||
e59058c4 | 7801 | /** |
3621a710 | 7802 | * lpfc_fabric_block_timeout - Handler function to the fabric block timer |
e59058c4 JS |
7803 | * @ptr: holder for the timer function associated data. |
7804 | * | |
7805 | * This routine is invoked by the fabric iocb block timer after | |
7806 | * timeout. It posts the fabric iocb block timeout event by setting the | |
7807 | * WORKER_FABRIC_BLOCK_TMO bit to work port event bitmap and then invokes | |
7808 | * lpfc_worker_wake_up() routine to wake up the worker thread. It is for | |
7809 | * the worker thread to invoke the lpfc_unblock_fabric_iocbs() on the | |
7810 | * posted event WORKER_FABRIC_BLOCK_TMO. | |
7811 | **/ | |
92d7f7b0 JS |
7812 | void |
7813 | lpfc_fabric_block_timeout(unsigned long ptr) | |
7814 | { | |
7815 | struct lpfc_hba *phba = (struct lpfc_hba *) ptr; | |
7816 | unsigned long iflags; | |
7817 | uint32_t tmo_posted; | |
5e9d9b82 | 7818 | |
92d7f7b0 JS |
7819 | spin_lock_irqsave(&phba->pport->work_port_lock, iflags); |
7820 | tmo_posted = phba->pport->work_port_events & WORKER_FABRIC_BLOCK_TMO; | |
7821 | if (!tmo_posted) | |
7822 | phba->pport->work_port_events |= WORKER_FABRIC_BLOCK_TMO; | |
7823 | spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags); | |
7824 | ||
5e9d9b82 JS |
7825 | if (!tmo_posted) |
7826 | lpfc_worker_wake_up(phba); | |
7827 | return; | |
92d7f7b0 JS |
7828 | } |
7829 | ||
e59058c4 | 7830 | /** |
3621a710 | 7831 | * lpfc_resume_fabric_iocbs - Issue a fabric iocb from driver internal list |
e59058c4 JS |
7832 | * @phba: pointer to lpfc hba data structure. |
7833 | * | |
7834 | * This routine issues one fabric iocb from the driver internal list to | |
7835 | * the HBA. It first checks whether it's ready to issue one fabric iocb to | |
7836 | * the HBA (whether there is no outstanding fabric iocb). If so, it shall | |
7837 | * remove one pending fabric iocb from the driver internal list and invokes | |
7838 | * lpfc_sli_issue_iocb() routine to send the fabric iocb to the HBA. | |
7839 | **/ | |
92d7f7b0 JS |
7840 | static void |
7841 | lpfc_resume_fabric_iocbs(struct lpfc_hba *phba) | |
7842 | { | |
7843 | struct lpfc_iocbq *iocb; | |
7844 | unsigned long iflags; | |
7845 | int ret; | |
92d7f7b0 JS |
7846 | IOCB_t *cmd; |
7847 | ||
7848 | repeat: | |
7849 | iocb = NULL; | |
7850 | spin_lock_irqsave(&phba->hbalock, iflags); | |
7f5f3d0d | 7851 | /* Post any pending iocb to the SLI layer */ |
92d7f7b0 JS |
7852 | if (atomic_read(&phba->fabric_iocb_count) == 0) { |
7853 | list_remove_head(&phba->fabric_iocb_list, iocb, typeof(*iocb), | |
7854 | list); | |
7855 | if (iocb) | |
7f5f3d0d | 7856 | /* Increment fabric iocb count to hold the position */ |
92d7f7b0 JS |
7857 | atomic_inc(&phba->fabric_iocb_count); |
7858 | } | |
7859 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
7860 | if (iocb) { | |
7861 | iocb->fabric_iocb_cmpl = iocb->iocb_cmpl; | |
7862 | iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb; | |
7863 | iocb->iocb_flag |= LPFC_IO_FABRIC; | |
7864 | ||
858c9f6c JS |
7865 | lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD, |
7866 | "Fabric sched1: ste:x%x", | |
7867 | iocb->vport->port_state, 0, 0); | |
7868 | ||
3772a991 | 7869 | ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0); |
92d7f7b0 JS |
7870 | |
7871 | if (ret == IOCB_ERROR) { | |
7872 | iocb->iocb_cmpl = iocb->fabric_iocb_cmpl; | |
7873 | iocb->fabric_iocb_cmpl = NULL; | |
7874 | iocb->iocb_flag &= ~LPFC_IO_FABRIC; | |
7875 | cmd = &iocb->iocb; | |
7876 | cmd->ulpStatus = IOSTAT_LOCAL_REJECT; | |
7877 | cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; | |
7878 | iocb->iocb_cmpl(phba, iocb, iocb); | |
7879 | ||
7880 | atomic_dec(&phba->fabric_iocb_count); | |
7881 | goto repeat; | |
7882 | } | |
7883 | } | |
7884 | ||
7885 | return; | |
7886 | } | |
7887 | ||
e59058c4 | 7888 | /** |
3621a710 | 7889 | * lpfc_unblock_fabric_iocbs - Unblock issuing fabric iocb command |
e59058c4 JS |
7890 | * @phba: pointer to lpfc hba data structure. |
7891 | * | |
7892 | * This routine unblocks the issuing fabric iocb command. The function | |
7893 | * will clear the fabric iocb block bit and then invoke the routine | |
7894 | * lpfc_resume_fabric_iocbs() to issue one of the pending fabric iocb | |
7895 | * from the driver internal fabric iocb list. | |
7896 | **/ | |
92d7f7b0 JS |
7897 | void |
7898 | lpfc_unblock_fabric_iocbs(struct lpfc_hba *phba) | |
7899 | { | |
7900 | clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); | |
7901 | ||
7902 | lpfc_resume_fabric_iocbs(phba); | |
7903 | return; | |
7904 | } | |
7905 | ||
e59058c4 | 7906 | /** |
3621a710 | 7907 | * lpfc_block_fabric_iocbs - Block issuing fabric iocb command |
e59058c4 JS |
7908 | * @phba: pointer to lpfc hba data structure. |
7909 | * | |
7910 | * This routine blocks the issuing fabric iocb for a specified amount of | |
7911 | * time (currently 100 ms). This is done by set the fabric iocb block bit | |
7912 | * and set up a timeout timer for 100ms. When the block bit is set, no more | |
7913 | * fabric iocb will be issued out of the HBA. | |
7914 | **/ | |
92d7f7b0 JS |
7915 | static void |
7916 | lpfc_block_fabric_iocbs(struct lpfc_hba *phba) | |
7917 | { | |
7918 | int blocked; | |
7919 | ||
7920 | blocked = test_and_set_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); | |
7f5f3d0d | 7921 | /* Start a timer to unblock fabric iocbs after 100ms */ |
92d7f7b0 | 7922 | if (!blocked) |
256ec0d0 JS |
7923 | mod_timer(&phba->fabric_block_timer, |
7924 | jiffies + msecs_to_jiffies(100)); | |
92d7f7b0 JS |
7925 | |
7926 | return; | |
7927 | } | |
7928 | ||
e59058c4 | 7929 | /** |
3621a710 | 7930 | * lpfc_cmpl_fabric_iocb - Completion callback function for fabric iocb |
e59058c4 JS |
7931 | * @phba: pointer to lpfc hba data structure. |
7932 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
7933 | * @rspiocb: pointer to lpfc response iocb data structure. | |
7934 | * | |
7935 | * This routine is the callback function that is put to the fabric iocb's | |
7936 | * callback function pointer (iocb->iocb_cmpl). The original iocb's callback | |
7937 | * function pointer has been stored in iocb->fabric_iocb_cmpl. This callback | |
7938 | * function first restores and invokes the original iocb's callback function | |
7939 | * and then invokes the lpfc_resume_fabric_iocbs() routine to issue the next | |
7940 | * fabric bound iocb from the driver internal fabric iocb list onto the wire. | |
7941 | **/ | |
92d7f7b0 JS |
7942 | static void |
7943 | lpfc_cmpl_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
7944 | struct lpfc_iocbq *rspiocb) | |
7945 | { | |
7946 | struct ls_rjt stat; | |
7947 | ||
7948 | if ((cmdiocb->iocb_flag & LPFC_IO_FABRIC) != LPFC_IO_FABRIC) | |
7949 | BUG(); | |
7950 | ||
7951 | switch (rspiocb->iocb.ulpStatus) { | |
7952 | case IOSTAT_NPORT_RJT: | |
7953 | case IOSTAT_FABRIC_RJT: | |
7954 | if (rspiocb->iocb.un.ulpWord[4] & RJT_UNAVAIL_TEMP) { | |
7955 | lpfc_block_fabric_iocbs(phba); | |
ed957684 | 7956 | } |
92d7f7b0 JS |
7957 | break; |
7958 | ||
7959 | case IOSTAT_NPORT_BSY: | |
7960 | case IOSTAT_FABRIC_BSY: | |
7961 | lpfc_block_fabric_iocbs(phba); | |
7962 | break; | |
7963 | ||
7964 | case IOSTAT_LS_RJT: | |
7965 | stat.un.lsRjtError = | |
7966 | be32_to_cpu(rspiocb->iocb.un.ulpWord[4]); | |
7967 | if ((stat.un.b.lsRjtRsnCode == LSRJT_UNABLE_TPC) || | |
7968 | (stat.un.b.lsRjtRsnCode == LSRJT_LOGICAL_BSY)) | |
7969 | lpfc_block_fabric_iocbs(phba); | |
7970 | break; | |
7971 | } | |
7972 | ||
7973 | if (atomic_read(&phba->fabric_iocb_count) == 0) | |
7974 | BUG(); | |
7975 | ||
7976 | cmdiocb->iocb_cmpl = cmdiocb->fabric_iocb_cmpl; | |
7977 | cmdiocb->fabric_iocb_cmpl = NULL; | |
7978 | cmdiocb->iocb_flag &= ~LPFC_IO_FABRIC; | |
7979 | cmdiocb->iocb_cmpl(phba, cmdiocb, rspiocb); | |
7980 | ||
7981 | atomic_dec(&phba->fabric_iocb_count); | |
7982 | if (!test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags)) { | |
7f5f3d0d JS |
7983 | /* Post any pending iocbs to HBA */ |
7984 | lpfc_resume_fabric_iocbs(phba); | |
92d7f7b0 JS |
7985 | } |
7986 | } | |
7987 | ||
e59058c4 | 7988 | /** |
3621a710 | 7989 | * lpfc_issue_fabric_iocb - Issue a fabric iocb command |
e59058c4 JS |
7990 | * @phba: pointer to lpfc hba data structure. |
7991 | * @iocb: pointer to lpfc command iocb data structure. | |
7992 | * | |
7993 | * This routine is used as the top-level API for issuing a fabric iocb command | |
7994 | * such as FLOGI and FDISC. To accommodate certain switch fabric, this driver | |
7995 | * function makes sure that only one fabric bound iocb will be outstanding at | |
7996 | * any given time. As such, this function will first check to see whether there | |
7997 | * is already an outstanding fabric iocb on the wire. If so, it will put the | |
7998 | * newly issued iocb onto the driver internal fabric iocb list, waiting to be | |
7999 | * issued later. Otherwise, it will issue the iocb on the wire and update the | |
8000 | * fabric iocb count it indicate that there is one fabric iocb on the wire. | |
8001 | * | |
8002 | * Note, this implementation has a potential sending out fabric IOCBs out of | |
8003 | * order. The problem is caused by the construction of the "ready" boolen does | |
8004 | * not include the condition that the internal fabric IOCB list is empty. As | |
8005 | * such, it is possible a fabric IOCB issued by this routine might be "jump" | |
8006 | * ahead of the fabric IOCBs in the internal list. | |
8007 | * | |
8008 | * Return code | |
8009 | * IOCB_SUCCESS - either fabric iocb put on the list or issued successfully | |
8010 | * IOCB_ERROR - failed to issue fabric iocb | |
8011 | **/ | |
a6ababd2 | 8012 | static int |
92d7f7b0 JS |
8013 | lpfc_issue_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *iocb) |
8014 | { | |
8015 | unsigned long iflags; | |
92d7f7b0 JS |
8016 | int ready; |
8017 | int ret; | |
8018 | ||
8019 | if (atomic_read(&phba->fabric_iocb_count) > 1) | |
8020 | BUG(); | |
8021 | ||
8022 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8023 | ready = atomic_read(&phba->fabric_iocb_count) == 0 && | |
8024 | !test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); | |
8025 | ||
7f5f3d0d JS |
8026 | if (ready) |
8027 | /* Increment fabric iocb count to hold the position */ | |
8028 | atomic_inc(&phba->fabric_iocb_count); | |
92d7f7b0 JS |
8029 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
8030 | if (ready) { | |
8031 | iocb->fabric_iocb_cmpl = iocb->iocb_cmpl; | |
8032 | iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb; | |
8033 | iocb->iocb_flag |= LPFC_IO_FABRIC; | |
8034 | ||
858c9f6c JS |
8035 | lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD, |
8036 | "Fabric sched2: ste:x%x", | |
8037 | iocb->vport->port_state, 0, 0); | |
8038 | ||
3772a991 | 8039 | ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0); |
92d7f7b0 JS |
8040 | |
8041 | if (ret == IOCB_ERROR) { | |
8042 | iocb->iocb_cmpl = iocb->fabric_iocb_cmpl; | |
8043 | iocb->fabric_iocb_cmpl = NULL; | |
8044 | iocb->iocb_flag &= ~LPFC_IO_FABRIC; | |
8045 | atomic_dec(&phba->fabric_iocb_count); | |
8046 | } | |
8047 | } else { | |
8048 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8049 | list_add_tail(&iocb->list, &phba->fabric_iocb_list); | |
8050 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8051 | ret = IOCB_SUCCESS; | |
8052 | } | |
8053 | return ret; | |
8054 | } | |
8055 | ||
e59058c4 | 8056 | /** |
3621a710 | 8057 | * lpfc_fabric_abort_vport - Abort a vport's iocbs from driver fabric iocb list |
e59058c4 JS |
8058 | * @vport: pointer to a virtual N_Port data structure. |
8059 | * | |
8060 | * This routine aborts all the IOCBs associated with a @vport from the | |
8061 | * driver internal fabric IOCB list. The list contains fabric IOCBs to be | |
8062 | * issued to the ELS IOCB ring. This abort function walks the fabric IOCB | |
8063 | * list, removes each IOCB associated with the @vport off the list, set the | |
8064 | * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function | |
8065 | * associated with the IOCB. | |
8066 | **/ | |
a6ababd2 | 8067 | static void lpfc_fabric_abort_vport(struct lpfc_vport *vport) |
92d7f7b0 JS |
8068 | { |
8069 | LIST_HEAD(completions); | |
8070 | struct lpfc_hba *phba = vport->phba; | |
8071 | struct lpfc_iocbq *tmp_iocb, *piocb; | |
92d7f7b0 JS |
8072 | |
8073 | spin_lock_irq(&phba->hbalock); | |
8074 | list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list, | |
8075 | list) { | |
8076 | ||
8077 | if (piocb->vport != vport) | |
8078 | continue; | |
8079 | ||
8080 | list_move_tail(&piocb->list, &completions); | |
8081 | } | |
8082 | spin_unlock_irq(&phba->hbalock); | |
8083 | ||
a257bf90 JS |
8084 | /* Cancel all the IOCBs from the completions list */ |
8085 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
8086 | IOERR_SLI_ABORTED); | |
92d7f7b0 JS |
8087 | } |
8088 | ||
e59058c4 | 8089 | /** |
3621a710 | 8090 | * lpfc_fabric_abort_nport - Abort a ndlp's iocbs from driver fabric iocb list |
e59058c4 JS |
8091 | * @ndlp: pointer to a node-list data structure. |
8092 | * | |
8093 | * This routine aborts all the IOCBs associated with an @ndlp from the | |
8094 | * driver internal fabric IOCB list. The list contains fabric IOCBs to be | |
8095 | * issued to the ELS IOCB ring. This abort function walks the fabric IOCB | |
8096 | * list, removes each IOCB associated with the @ndlp off the list, set the | |
8097 | * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function | |
8098 | * associated with the IOCB. | |
8099 | **/ | |
92d7f7b0 JS |
8100 | void lpfc_fabric_abort_nport(struct lpfc_nodelist *ndlp) |
8101 | { | |
8102 | LIST_HEAD(completions); | |
a257bf90 | 8103 | struct lpfc_hba *phba = ndlp->phba; |
92d7f7b0 JS |
8104 | struct lpfc_iocbq *tmp_iocb, *piocb; |
8105 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; | |
92d7f7b0 JS |
8106 | |
8107 | spin_lock_irq(&phba->hbalock); | |
8108 | list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list, | |
8109 | list) { | |
8110 | if ((lpfc_check_sli_ndlp(phba, pring, piocb, ndlp))) { | |
8111 | ||
8112 | list_move_tail(&piocb->list, &completions); | |
ed957684 | 8113 | } |
dea3101e | 8114 | } |
92d7f7b0 JS |
8115 | spin_unlock_irq(&phba->hbalock); |
8116 | ||
a257bf90 JS |
8117 | /* Cancel all the IOCBs from the completions list */ |
8118 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
8119 | IOERR_SLI_ABORTED); | |
92d7f7b0 JS |
8120 | } |
8121 | ||
e59058c4 | 8122 | /** |
3621a710 | 8123 | * lpfc_fabric_abort_hba - Abort all iocbs on driver fabric iocb list |
e59058c4 JS |
8124 | * @phba: pointer to lpfc hba data structure. |
8125 | * | |
8126 | * This routine aborts all the IOCBs currently on the driver internal | |
8127 | * fabric IOCB list. The list contains fabric IOCBs to be issued to the ELS | |
8128 | * IOCB ring. This function takes the entire IOCB list off the fabric IOCB | |
8129 | * list, removes IOCBs off the list, set the status feild to | |
8130 | * IOSTAT_LOCAL_REJECT, and invokes the callback function associated with | |
8131 | * the IOCB. | |
8132 | **/ | |
92d7f7b0 JS |
8133 | void lpfc_fabric_abort_hba(struct lpfc_hba *phba) |
8134 | { | |
8135 | LIST_HEAD(completions); | |
92d7f7b0 JS |
8136 | |
8137 | spin_lock_irq(&phba->hbalock); | |
8138 | list_splice_init(&phba->fabric_iocb_list, &completions); | |
8139 | spin_unlock_irq(&phba->hbalock); | |
8140 | ||
a257bf90 JS |
8141 | /* Cancel all the IOCBs from the completions list */ |
8142 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
8143 | IOERR_SLI_ABORTED); | |
dea3101e | 8144 | } |
6fb120a7 | 8145 | |
1151e3ec JS |
8146 | /** |
8147 | * lpfc_sli4_vport_delete_els_xri_aborted -Remove all ndlp references for vport | |
8148 | * @vport: pointer to lpfc vport data structure. | |
8149 | * | |
8150 | * This routine is invoked by the vport cleanup for deletions and the cleanup | |
8151 | * for an ndlp on removal. | |
8152 | **/ | |
8153 | void | |
8154 | lpfc_sli4_vport_delete_els_xri_aborted(struct lpfc_vport *vport) | |
8155 | { | |
8156 | struct lpfc_hba *phba = vport->phba; | |
8157 | struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; | |
8158 | unsigned long iflag = 0; | |
8159 | ||
8160 | spin_lock_irqsave(&phba->hbalock, iflag); | |
8161 | spin_lock(&phba->sli4_hba.abts_sgl_list_lock); | |
8162 | list_for_each_entry_safe(sglq_entry, sglq_next, | |
8163 | &phba->sli4_hba.lpfc_abts_els_sgl_list, list) { | |
8164 | if (sglq_entry->ndlp && sglq_entry->ndlp->vport == vport) | |
8165 | sglq_entry->ndlp = NULL; | |
8166 | } | |
8167 | spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); | |
8168 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
8169 | return; | |
8170 | } | |
8171 | ||
6fb120a7 JS |
8172 | /** |
8173 | * lpfc_sli4_els_xri_aborted - Slow-path process of els xri abort | |
8174 | * @phba: pointer to lpfc hba data structure. | |
8175 | * @axri: pointer to the els xri abort wcqe structure. | |
8176 | * | |
8177 | * This routine is invoked by the worker thread to process a SLI4 slow-path | |
8178 | * ELS aborted xri. | |
8179 | **/ | |
8180 | void | |
8181 | lpfc_sli4_els_xri_aborted(struct lpfc_hba *phba, | |
8182 | struct sli4_wcqe_xri_aborted *axri) | |
8183 | { | |
8184 | uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri); | |
19ca7609 | 8185 | uint16_t rxid = bf_get(lpfc_wcqe_xa_remote_xid, axri); |
7851fe2c | 8186 | uint16_t lxri = 0; |
19ca7609 | 8187 | |
6fb120a7 JS |
8188 | struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; |
8189 | unsigned long iflag = 0; | |
19ca7609 | 8190 | struct lpfc_nodelist *ndlp; |
589a52d6 | 8191 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; |
6fb120a7 | 8192 | |
0f65ff68 JS |
8193 | spin_lock_irqsave(&phba->hbalock, iflag); |
8194 | spin_lock(&phba->sli4_hba.abts_sgl_list_lock); | |
6fb120a7 JS |
8195 | list_for_each_entry_safe(sglq_entry, sglq_next, |
8196 | &phba->sli4_hba.lpfc_abts_els_sgl_list, list) { | |
8197 | if (sglq_entry->sli4_xritag == xri) { | |
8198 | list_del(&sglq_entry->list); | |
19ca7609 JS |
8199 | ndlp = sglq_entry->ndlp; |
8200 | sglq_entry->ndlp = NULL; | |
dafe8cea | 8201 | spin_lock(&pring->ring_lock); |
6fb120a7 JS |
8202 | list_add_tail(&sglq_entry->list, |
8203 | &phba->sli4_hba.lpfc_sgl_list); | |
0f65ff68 | 8204 | sglq_entry->state = SGL_FREED; |
dafe8cea | 8205 | spin_unlock(&pring->ring_lock); |
0f65ff68 | 8206 | spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); |
6fb120a7 | 8207 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
ee0f4fe1 JS |
8208 | lpfc_set_rrq_active(phba, ndlp, |
8209 | sglq_entry->sli4_lxritag, | |
8210 | rxid, 1); | |
589a52d6 JS |
8211 | |
8212 | /* Check if TXQ queue needs to be serviced */ | |
0e9bb8d7 | 8213 | if (!(list_empty(&pring->txq))) |
589a52d6 | 8214 | lpfc_worker_wake_up(phba); |
6fb120a7 JS |
8215 | return; |
8216 | } | |
8217 | } | |
0f65ff68 | 8218 | spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); |
7851fe2c JS |
8219 | lxri = lpfc_sli4_xri_inrange(phba, xri); |
8220 | if (lxri == NO_XRI) { | |
8221 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
8222 | return; | |
8223 | } | |
dafe8cea | 8224 | spin_lock(&pring->ring_lock); |
7851fe2c | 8225 | sglq_entry = __lpfc_get_active_sglq(phba, lxri); |
0f65ff68 | 8226 | if (!sglq_entry || (sglq_entry->sli4_xritag != xri)) { |
dafe8cea | 8227 | spin_unlock(&pring->ring_lock); |
0f65ff68 JS |
8228 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
8229 | return; | |
8230 | } | |
8231 | sglq_entry->state = SGL_XRI_ABORTED; | |
dafe8cea | 8232 | spin_unlock(&pring->ring_lock); |
0f65ff68 JS |
8233 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
8234 | return; | |
6fb120a7 | 8235 | } |
086a345f JS |
8236 | |
8237 | /* lpfc_sli_abts_recover_port - Recover a port that failed a BLS_ABORT req. | |
8238 | * @vport: pointer to virtual port object. | |
8239 | * @ndlp: nodelist pointer for the impacted node. | |
8240 | * | |
8241 | * The driver calls this routine in response to an SLI4 XRI ABORT CQE | |
8242 | * or an SLI3 ASYNC_STATUS_CN event from the port. For either event, | |
8243 | * the driver is required to send a LOGO to the remote node before it | |
8244 | * attempts to recover its login to the remote node. | |
8245 | */ | |
8246 | void | |
8247 | lpfc_sli_abts_recover_port(struct lpfc_vport *vport, | |
8248 | struct lpfc_nodelist *ndlp) | |
8249 | { | |
8250 | struct Scsi_Host *shost; | |
8251 | struct lpfc_hba *phba; | |
8252 | unsigned long flags = 0; | |
8253 | ||
8254 | shost = lpfc_shost_from_vport(vport); | |
8255 | phba = vport->phba; | |
8256 | if (ndlp->nlp_state != NLP_STE_MAPPED_NODE) { | |
8257 | lpfc_printf_log(phba, KERN_INFO, | |
8258 | LOG_SLI, "3093 No rport recovery needed. " | |
8259 | "rport in state 0x%x\n", ndlp->nlp_state); | |
8260 | return; | |
8261 | } | |
8262 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
8263 | "3094 Start rport recovery on shost id 0x%x " | |
8264 | "fc_id 0x%06x vpi 0x%x rpi 0x%x state 0x%x " | |
8265 | "flags 0x%x\n", | |
8266 | shost->host_no, ndlp->nlp_DID, | |
8267 | vport->vpi, ndlp->nlp_rpi, ndlp->nlp_state, | |
8268 | ndlp->nlp_flag); | |
8269 | /* | |
8270 | * The rport is not responding. Remove the FCP-2 flag to prevent | |
8271 | * an ADISC in the follow-up recovery code. | |
8272 | */ | |
8273 | spin_lock_irqsave(shost->host_lock, flags); | |
8274 | ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; | |
8275 | spin_unlock_irqrestore(shost->host_lock, flags); | |
8276 | lpfc_issue_els_logo(vport, ndlp, 0); | |
8277 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE); | |
8278 | } | |
8279 |