Commit | Line | Data |
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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. * |
d8e93df1 | 4 | * Copyright (C) 2004-2009 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 | ||
da0436e9 | 32 | #include "lpfc_hw4.h" |
dea3101e | 33 | #include "lpfc_hw.h" |
34 | #include "lpfc_sli.h" | |
da0436e9 | 35 | #include "lpfc_sli4.h" |
ea2151b4 | 36 | #include "lpfc_nl.h" |
dea3101e | 37 | #include "lpfc_disc.h" |
38 | #include "lpfc_scsi.h" | |
39 | #include "lpfc.h" | |
40 | #include "lpfc_logmsg.h" | |
41 | #include "lpfc_crtn.h" | |
92d7f7b0 | 42 | #include "lpfc_vport.h" |
858c9f6c | 43 | #include "lpfc_debugfs.h" |
dea3101e | 44 | |
45 | static int lpfc_els_retry(struct lpfc_hba *, struct lpfc_iocbq *, | |
46 | struct lpfc_iocbq *); | |
92d7f7b0 JS |
47 | static void lpfc_cmpl_fabric_iocb(struct lpfc_hba *, struct lpfc_iocbq *, |
48 | struct lpfc_iocbq *); | |
a6ababd2 AB |
49 | static void lpfc_fabric_abort_vport(struct lpfc_vport *vport); |
50 | static int lpfc_issue_els_fdisc(struct lpfc_vport *vport, | |
51 | struct lpfc_nodelist *ndlp, uint8_t retry); | |
52 | static int lpfc_issue_fabric_iocb(struct lpfc_hba *phba, | |
53 | struct lpfc_iocbq *iocb); | |
92d7f7b0 | 54 | |
dea3101e | 55 | static int lpfc_max_els_tries = 3; |
56 | ||
e59058c4 | 57 | /** |
3621a710 | 58 | * lpfc_els_chk_latt - Check host link attention event for a vport |
e59058c4 JS |
59 | * @vport: pointer to a host virtual N_Port data structure. |
60 | * | |
61 | * This routine checks whether there is an outstanding host link | |
62 | * attention event during the discovery process with the @vport. It is done | |
63 | * by reading the HBA's Host Attention (HA) register. If there is any host | |
64 | * link attention events during this @vport's discovery process, the @vport | |
65 | * shall be marked as FC_ABORT_DISCOVERY, a host link attention clear shall | |
66 | * be issued if the link state is not already in host link cleared state, | |
67 | * and a return code shall indicate whether the host link attention event | |
68 | * had happened. | |
69 | * | |
70 | * Note that, if either the host link is in state LPFC_LINK_DOWN or @vport | |
71 | * state in LPFC_VPORT_READY, the request for checking host link attention | |
72 | * event will be ignored and a return code shall indicate no host link | |
73 | * attention event had happened. | |
74 | * | |
75 | * Return codes | |
76 | * 0 - no host link attention event happened | |
77 | * 1 - host link attention event happened | |
78 | **/ | |
858c9f6c | 79 | int |
2e0fef85 | 80 | lpfc_els_chk_latt(struct lpfc_vport *vport) |
dea3101e | 81 | { |
2e0fef85 JS |
82 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
83 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 84 | uint32_t ha_copy; |
dea3101e | 85 | |
2e0fef85 | 86 | if (vport->port_state >= LPFC_VPORT_READY || |
3772a991 JS |
87 | phba->link_state == LPFC_LINK_DOWN || |
88 | phba->sli_rev > LPFC_SLI_REV3) | |
dea3101e | 89 | return 0; |
90 | ||
91 | /* Read the HBA Host Attention Register */ | |
dea3101e | 92 | ha_copy = readl(phba->HAregaddr); |
dea3101e | 93 | |
94 | if (!(ha_copy & HA_LATT)) | |
95 | return 0; | |
96 | ||
97 | /* Pending Link Event during Discovery */ | |
e8b62011 JS |
98 | lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, |
99 | "0237 Pending Link Event during " | |
100 | "Discovery: State x%x\n", | |
101 | phba->pport->port_state); | |
dea3101e | 102 | |
103 | /* CLEAR_LA should re-enable link attention events and | |
104 | * we should then imediately take a LATT event. The | |
105 | * LATT processing should call lpfc_linkdown() which | |
106 | * will cleanup any left over in-progress discovery | |
107 | * events. | |
108 | */ | |
2e0fef85 JS |
109 | spin_lock_irq(shost->host_lock); |
110 | vport->fc_flag |= FC_ABORT_DISCOVERY; | |
111 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 112 | |
92d7f7b0 | 113 | if (phba->link_state != LPFC_CLEAR_LA) |
ed957684 | 114 | lpfc_issue_clear_la(phba, vport); |
dea3101e | 115 | |
c9f8735b | 116 | return 1; |
dea3101e | 117 | } |
118 | ||
e59058c4 | 119 | /** |
3621a710 | 120 | * lpfc_prep_els_iocb - Allocate and prepare a lpfc iocb data structure |
e59058c4 JS |
121 | * @vport: pointer to a host virtual N_Port data structure. |
122 | * @expectRsp: flag indicating whether response is expected. | |
123 | * @cmdSize: size of the ELS command. | |
124 | * @retry: number of retries to the command IOCB when it fails. | |
125 | * @ndlp: pointer to a node-list data structure. | |
126 | * @did: destination identifier. | |
127 | * @elscmd: the ELS command code. | |
128 | * | |
129 | * This routine is used for allocating a lpfc-IOCB data structure from | |
130 | * the driver lpfc-IOCB free-list and prepare the IOCB with the parameters | |
131 | * passed into the routine for discovery state machine to issue an Extended | |
132 | * Link Service (ELS) commands. It is a generic lpfc-IOCB allocation | |
133 | * and preparation routine that is used by all the discovery state machine | |
134 | * routines and the ELS command-specific fields will be later set up by | |
135 | * the individual discovery machine routines after calling this routine | |
136 | * allocating and preparing a generic IOCB data structure. It fills in the | |
137 | * Buffer Descriptor Entries (BDEs), allocates buffers for both command | |
138 | * payload and response payload (if expected). The reference count on the | |
139 | * ndlp is incremented by 1 and the reference to the ndlp is put into | |
140 | * context1 of the IOCB data structure for this IOCB to hold the ndlp | |
141 | * reference for the command's callback function to access later. | |
142 | * | |
143 | * Return code | |
144 | * Pointer to the newly allocated/prepared els iocb data structure | |
145 | * NULL - when els iocb data structure allocation/preparation failed | |
146 | **/ | |
f1c3b0fc | 147 | struct lpfc_iocbq * |
2e0fef85 JS |
148 | lpfc_prep_els_iocb(struct lpfc_vport *vport, uint8_t expectRsp, |
149 | uint16_t cmdSize, uint8_t retry, | |
150 | struct lpfc_nodelist *ndlp, uint32_t did, | |
151 | uint32_t elscmd) | |
dea3101e | 152 | { |
2e0fef85 | 153 | struct lpfc_hba *phba = vport->phba; |
0bd4ca25 | 154 | struct lpfc_iocbq *elsiocb; |
dea3101e | 155 | struct lpfc_dmabuf *pcmd, *prsp, *pbuflist; |
156 | struct ulp_bde64 *bpl; | |
157 | IOCB_t *icmd; | |
158 | ||
dea3101e | 159 | |
2e0fef85 JS |
160 | if (!lpfc_is_link_up(phba)) |
161 | return NULL; | |
dea3101e | 162 | |
dea3101e | 163 | /* Allocate buffer for command iocb */ |
0bd4ca25 | 164 | elsiocb = lpfc_sli_get_iocbq(phba); |
dea3101e | 165 | |
166 | if (elsiocb == NULL) | |
167 | return NULL; | |
e47c9093 | 168 | |
0c287589 JS |
169 | /* |
170 | * If this command is for fabric controller and HBA running | |
171 | * in FIP mode send FLOGI, FDISC and LOGO as FIP frames. | |
172 | */ | |
173 | if ((did == Fabric_DID) && | |
45ed1190 | 174 | (phba->hba_flag & HBA_FIP_SUPPORT) && |
0c287589 JS |
175 | ((elscmd == ELS_CMD_FLOGI) || |
176 | (elscmd == ELS_CMD_FDISC) || | |
177 | (elscmd == ELS_CMD_LOGO))) | |
c868595d JS |
178 | switch (elscmd) { |
179 | case ELS_CMD_FLOGI: | |
f0d9bccc JS |
180 | elsiocb->iocb_flag |= |
181 | ((LPFC_ELS_ID_FLOGI << LPFC_FIP_ELS_ID_SHIFT) | |
c868595d JS |
182 | & LPFC_FIP_ELS_ID_MASK); |
183 | break; | |
184 | case ELS_CMD_FDISC: | |
f0d9bccc JS |
185 | elsiocb->iocb_flag |= |
186 | ((LPFC_ELS_ID_FDISC << LPFC_FIP_ELS_ID_SHIFT) | |
c868595d JS |
187 | & LPFC_FIP_ELS_ID_MASK); |
188 | break; | |
189 | case ELS_CMD_LOGO: | |
f0d9bccc JS |
190 | elsiocb->iocb_flag |= |
191 | ((LPFC_ELS_ID_LOGO << LPFC_FIP_ELS_ID_SHIFT) | |
c868595d JS |
192 | & LPFC_FIP_ELS_ID_MASK); |
193 | break; | |
194 | } | |
0c287589 | 195 | else |
c868595d | 196 | elsiocb->iocb_flag &= ~LPFC_FIP_ELS_ID_MASK; |
0c287589 | 197 | |
dea3101e | 198 | icmd = &elsiocb->iocb; |
199 | ||
200 | /* fill in BDEs for command */ | |
201 | /* Allocate buffer for command payload */ | |
98c9ea5c JS |
202 | pcmd = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
203 | if (pcmd) | |
204 | pcmd->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &pcmd->phys); | |
fa4066b6 JS |
205 | if (!pcmd || !pcmd->virt) |
206 | goto els_iocb_free_pcmb_exit; | |
dea3101e | 207 | |
208 | INIT_LIST_HEAD(&pcmd->list); | |
209 | ||
210 | /* Allocate buffer for response payload */ | |
211 | if (expectRsp) { | |
92d7f7b0 | 212 | prsp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
dea3101e | 213 | if (prsp) |
214 | prsp->virt = lpfc_mbuf_alloc(phba, MEM_PRI, | |
215 | &prsp->phys); | |
fa4066b6 JS |
216 | if (!prsp || !prsp->virt) |
217 | goto els_iocb_free_prsp_exit; | |
dea3101e | 218 | INIT_LIST_HEAD(&prsp->list); |
e47c9093 | 219 | } else |
dea3101e | 220 | prsp = NULL; |
dea3101e | 221 | |
222 | /* Allocate buffer for Buffer ptr list */ | |
92d7f7b0 | 223 | pbuflist = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
dea3101e | 224 | if (pbuflist) |
ed957684 JS |
225 | pbuflist->virt = lpfc_mbuf_alloc(phba, MEM_PRI, |
226 | &pbuflist->phys); | |
fa4066b6 JS |
227 | if (!pbuflist || !pbuflist->virt) |
228 | goto els_iocb_free_pbuf_exit; | |
dea3101e | 229 | |
230 | INIT_LIST_HEAD(&pbuflist->list); | |
231 | ||
232 | icmd->un.elsreq64.bdl.addrHigh = putPaddrHigh(pbuflist->phys); | |
233 | icmd->un.elsreq64.bdl.addrLow = putPaddrLow(pbuflist->phys); | |
34b02dcd | 234 | icmd->un.elsreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; |
2e0fef85 | 235 | icmd->un.elsreq64.remoteID = did; /* DID */ |
dea3101e | 236 | if (expectRsp) { |
92d7f7b0 | 237 | icmd->un.elsreq64.bdl.bdeSize = (2 * sizeof(struct ulp_bde64)); |
dea3101e | 238 | icmd->ulpCommand = CMD_ELS_REQUEST64_CR; |
2680eeaa | 239 | icmd->ulpTimeout = phba->fc_ratov * 2; |
dea3101e | 240 | } else { |
92d7f7b0 | 241 | icmd->un.elsreq64.bdl.bdeSize = sizeof(struct ulp_bde64); |
dea3101e | 242 | icmd->ulpCommand = CMD_XMIT_ELS_RSP64_CX; |
243 | } | |
dea3101e | 244 | icmd->ulpBdeCount = 1; |
245 | icmd->ulpLe = 1; | |
246 | icmd->ulpClass = CLASS3; | |
247 | ||
92d7f7b0 JS |
248 | if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { |
249 | icmd->un.elsreq64.myID = vport->fc_myDID; | |
250 | ||
251 | /* For ELS_REQUEST64_CR, use the VPI by default */ | |
da0436e9 | 252 | icmd->ulpContext = vport->vpi + phba->vpi_base; |
92d7f7b0 | 253 | icmd->ulpCt_h = 0; |
eada272d JS |
254 | /* The CT field must be 0=INVALID_RPI for the ECHO cmd */ |
255 | if (elscmd == ELS_CMD_ECHO) | |
256 | icmd->ulpCt_l = 0; /* context = invalid RPI */ | |
257 | else | |
258 | icmd->ulpCt_l = 1; /* context = VPI */ | |
92d7f7b0 JS |
259 | } |
260 | ||
dea3101e | 261 | bpl = (struct ulp_bde64 *) pbuflist->virt; |
262 | bpl->addrLow = le32_to_cpu(putPaddrLow(pcmd->phys)); | |
263 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(pcmd->phys)); | |
264 | bpl->tus.f.bdeSize = cmdSize; | |
265 | bpl->tus.f.bdeFlags = 0; | |
266 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
267 | ||
268 | if (expectRsp) { | |
269 | bpl++; | |
270 | bpl->addrLow = le32_to_cpu(putPaddrLow(prsp->phys)); | |
271 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(prsp->phys)); | |
272 | bpl->tus.f.bdeSize = FCELSSIZE; | |
34b02dcd | 273 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; |
dea3101e | 274 | bpl->tus.w = le32_to_cpu(bpl->tus.w); |
275 | } | |
276 | ||
fa4066b6 | 277 | /* prevent preparing iocb with NULL ndlp reference */ |
51ef4c26 | 278 | elsiocb->context1 = lpfc_nlp_get(ndlp); |
fa4066b6 JS |
279 | if (!elsiocb->context1) |
280 | goto els_iocb_free_pbuf_exit; | |
329f9bc7 JS |
281 | elsiocb->context2 = pcmd; |
282 | elsiocb->context3 = pbuflist; | |
dea3101e | 283 | elsiocb->retry = retry; |
2e0fef85 | 284 | elsiocb->vport = vport; |
dea3101e | 285 | elsiocb->drvrTimeout = (phba->fc_ratov << 1) + LPFC_DRVR_TIMEOUT; |
286 | ||
287 | if (prsp) { | |
288 | list_add(&prsp->list, &pcmd->list); | |
289 | } | |
dea3101e | 290 | if (expectRsp) { |
291 | /* Xmit ELS command <elsCmd> to remote NPORT <did> */ | |
e8b62011 JS |
292 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
293 | "0116 Xmit ELS command x%x to remote " | |
294 | "NPORT x%x I/O tag: x%x, port state: x%x\n", | |
295 | elscmd, did, elsiocb->iotag, | |
296 | vport->port_state); | |
dea3101e | 297 | } else { |
298 | /* Xmit ELS response <elsCmd> to remote NPORT <did> */ | |
e8b62011 JS |
299 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
300 | "0117 Xmit ELS response x%x to remote " | |
301 | "NPORT x%x I/O tag: x%x, size: x%x\n", | |
302 | elscmd, ndlp->nlp_DID, elsiocb->iotag, | |
303 | cmdSize); | |
dea3101e | 304 | } |
c9f8735b | 305 | return elsiocb; |
dea3101e | 306 | |
fa4066b6 | 307 | els_iocb_free_pbuf_exit: |
eaf15d5b JS |
308 | if (expectRsp) |
309 | lpfc_mbuf_free(phba, prsp->virt, prsp->phys); | |
fa4066b6 JS |
310 | kfree(pbuflist); |
311 | ||
312 | els_iocb_free_prsp_exit: | |
313 | lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys); | |
314 | kfree(prsp); | |
315 | ||
316 | els_iocb_free_pcmb_exit: | |
317 | kfree(pcmd); | |
318 | lpfc_sli_release_iocbq(phba, elsiocb); | |
319 | return NULL; | |
320 | } | |
dea3101e | 321 | |
e59058c4 | 322 | /** |
3621a710 | 323 | * lpfc_issue_fabric_reglogin - Issue fabric registration login for a vport |
e59058c4 JS |
324 | * @vport: pointer to a host virtual N_Port data structure. |
325 | * | |
326 | * This routine issues a fabric registration login for a @vport. An | |
327 | * active ndlp node with Fabric_DID must already exist for this @vport. | |
328 | * The routine invokes two mailbox commands to carry out fabric registration | |
329 | * login through the HBA firmware: the first mailbox command requests the | |
330 | * HBA to perform link configuration for the @vport; and the second mailbox | |
331 | * command requests the HBA to perform the actual fabric registration login | |
332 | * with the @vport. | |
333 | * | |
334 | * Return code | |
335 | * 0 - successfully issued fabric registration login for @vport | |
336 | * -ENXIO -- failed to issue fabric registration login for @vport | |
337 | **/ | |
3772a991 | 338 | int |
92d7f7b0 | 339 | lpfc_issue_fabric_reglogin(struct lpfc_vport *vport) |
dea3101e | 340 | { |
2e0fef85 | 341 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 342 | LPFC_MBOXQ_t *mbox; |
14691150 | 343 | struct lpfc_dmabuf *mp; |
92d7f7b0 JS |
344 | struct lpfc_nodelist *ndlp; |
345 | struct serv_parm *sp; | |
dea3101e | 346 | int rc; |
98c9ea5c | 347 | int err = 0; |
dea3101e | 348 | |
92d7f7b0 JS |
349 | sp = &phba->fc_fabparam; |
350 | ndlp = lpfc_findnode_did(vport, Fabric_DID); | |
e47c9093 | 351 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { |
98c9ea5c | 352 | err = 1; |
92d7f7b0 | 353 | goto fail; |
98c9ea5c | 354 | } |
92d7f7b0 JS |
355 | |
356 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
98c9ea5c JS |
357 | if (!mbox) { |
358 | err = 2; | |
92d7f7b0 | 359 | goto fail; |
98c9ea5c | 360 | } |
92d7f7b0 JS |
361 | |
362 | vport->port_state = LPFC_FABRIC_CFG_LINK; | |
363 | lpfc_config_link(phba, mbox); | |
364 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
365 | mbox->vport = vport; | |
366 | ||
0b727fea | 367 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
98c9ea5c JS |
368 | if (rc == MBX_NOT_FINISHED) { |
369 | err = 3; | |
92d7f7b0 | 370 | goto fail_free_mbox; |
98c9ea5c | 371 | } |
92d7f7b0 JS |
372 | |
373 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
98c9ea5c JS |
374 | if (!mbox) { |
375 | err = 4; | |
92d7f7b0 | 376 | goto fail; |
98c9ea5c | 377 | } |
4042629e JS |
378 | rc = lpfc_reg_rpi(phba, vport->vpi, Fabric_DID, (uint8_t *)sp, mbox, |
379 | ndlp->nlp_rpi); | |
98c9ea5c JS |
380 | if (rc) { |
381 | err = 5; | |
92d7f7b0 | 382 | goto fail_free_mbox; |
98c9ea5c | 383 | } |
92d7f7b0 JS |
384 | |
385 | mbox->mbox_cmpl = lpfc_mbx_cmpl_fabric_reg_login; | |
386 | mbox->vport = vport; | |
e47c9093 JS |
387 | /* increment the reference count on ndlp to hold reference |
388 | * for the callback routine. | |
389 | */ | |
92d7f7b0 JS |
390 | mbox->context2 = lpfc_nlp_get(ndlp); |
391 | ||
0b727fea | 392 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
98c9ea5c JS |
393 | if (rc == MBX_NOT_FINISHED) { |
394 | err = 6; | |
92d7f7b0 | 395 | goto fail_issue_reg_login; |
98c9ea5c | 396 | } |
92d7f7b0 JS |
397 | |
398 | return 0; | |
399 | ||
400 | fail_issue_reg_login: | |
e47c9093 JS |
401 | /* decrement the reference count on ndlp just incremented |
402 | * for the failed mbox command. | |
403 | */ | |
92d7f7b0 JS |
404 | lpfc_nlp_put(ndlp); |
405 | mp = (struct lpfc_dmabuf *) mbox->context1; | |
406 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
407 | kfree(mp); | |
408 | fail_free_mbox: | |
409 | mempool_free(mbox, phba->mbox_mem_pool); | |
410 | ||
411 | fail: | |
412 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
e8b62011 | 413 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
98c9ea5c | 414 | "0249 Cannot issue Register Fabric login: Err %d\n", err); |
92d7f7b0 JS |
415 | return -ENXIO; |
416 | } | |
417 | ||
6fb120a7 JS |
418 | /** |
419 | * lpfc_issue_reg_vfi - Register VFI for this vport's fabric login | |
420 | * @vport: pointer to a host virtual N_Port data structure. | |
421 | * | |
422 | * This routine issues a REG_VFI mailbox for the vfi, vpi, fcfi triplet for | |
423 | * the @vport. This mailbox command is necessary for FCoE only. | |
424 | * | |
425 | * Return code | |
426 | * 0 - successfully issued REG_VFI for @vport | |
427 | * A failure code otherwise. | |
428 | **/ | |
429 | static int | |
430 | lpfc_issue_reg_vfi(struct lpfc_vport *vport) | |
431 | { | |
432 | struct lpfc_hba *phba = vport->phba; | |
433 | LPFC_MBOXQ_t *mboxq; | |
434 | struct lpfc_nodelist *ndlp; | |
435 | struct serv_parm *sp; | |
436 | struct lpfc_dmabuf *dmabuf; | |
437 | int rc = 0; | |
438 | ||
439 | sp = &phba->fc_fabparam; | |
440 | ndlp = lpfc_findnode_did(vport, Fabric_DID); | |
441 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { | |
442 | rc = -ENODEV; | |
443 | goto fail; | |
444 | } | |
445 | ||
446 | dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
447 | if (!dmabuf) { | |
448 | rc = -ENOMEM; | |
449 | goto fail; | |
450 | } | |
451 | dmabuf->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &dmabuf->phys); | |
452 | if (!dmabuf->virt) { | |
453 | rc = -ENOMEM; | |
454 | goto fail_free_dmabuf; | |
455 | } | |
456 | mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
457 | if (!mboxq) { | |
458 | rc = -ENOMEM; | |
459 | goto fail_free_coherent; | |
460 | } | |
461 | vport->port_state = LPFC_FABRIC_CFG_LINK; | |
462 | memcpy(dmabuf->virt, &phba->fc_fabparam, sizeof(vport->fc_sparam)); | |
463 | lpfc_reg_vfi(mboxq, vport, dmabuf->phys); | |
464 | mboxq->mbox_cmpl = lpfc_mbx_cmpl_reg_vfi; | |
465 | mboxq->vport = vport; | |
466 | mboxq->context1 = dmabuf; | |
467 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); | |
468 | if (rc == MBX_NOT_FINISHED) { | |
469 | rc = -ENXIO; | |
470 | goto fail_free_mbox; | |
471 | } | |
472 | return 0; | |
473 | ||
474 | fail_free_mbox: | |
475 | mempool_free(mboxq, phba->mbox_mem_pool); | |
476 | fail_free_coherent: | |
477 | lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys); | |
478 | fail_free_dmabuf: | |
479 | kfree(dmabuf); | |
480 | fail: | |
481 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
482 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
483 | "0289 Issue Register VFI failed: Err %d\n", rc); | |
484 | return rc; | |
485 | } | |
486 | ||
e59058c4 | 487 | /** |
3621a710 | 488 | * lpfc_cmpl_els_flogi_fabric - Completion function for flogi to a fabric port |
e59058c4 JS |
489 | * @vport: pointer to a host virtual N_Port data structure. |
490 | * @ndlp: pointer to a node-list data structure. | |
491 | * @sp: pointer to service parameter data structure. | |
492 | * @irsp: pointer to the IOCB within the lpfc response IOCB. | |
493 | * | |
494 | * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback | |
495 | * function to handle the completion of a Fabric Login (FLOGI) into a fabric | |
496 | * port in a fabric topology. It properly sets up the parameters to the @ndlp | |
497 | * from the IOCB response. It also check the newly assigned N_Port ID to the | |
498 | * @vport against the previously assigned N_Port ID. If it is different from | |
499 | * the previously assigned Destination ID (DID), the lpfc_unreg_rpi() routine | |
500 | * is invoked on all the remaining nodes with the @vport to unregister the | |
501 | * Remote Port Indicators (RPIs). Finally, the lpfc_issue_fabric_reglogin() | |
502 | * is invoked to register login to the fabric. | |
503 | * | |
504 | * Return code | |
505 | * 0 - Success (currently, always return 0) | |
506 | **/ | |
92d7f7b0 JS |
507 | static int |
508 | lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, | |
509 | struct serv_parm *sp, IOCB_t *irsp) | |
510 | { | |
511 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
512 | struct lpfc_hba *phba = vport->phba; | |
513 | struct lpfc_nodelist *np; | |
514 | struct lpfc_nodelist *next_np; | |
515 | ||
2e0fef85 JS |
516 | spin_lock_irq(shost->host_lock); |
517 | vport->fc_flag |= FC_FABRIC; | |
518 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 519 | |
520 | phba->fc_edtov = be32_to_cpu(sp->cmn.e_d_tov); | |
521 | if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */ | |
522 | phba->fc_edtov = (phba->fc_edtov + 999999) / 1000000; | |
523 | ||
12265f68 | 524 | phba->fc_edtovResol = sp->cmn.edtovResolution; |
dea3101e | 525 | phba->fc_ratov = (be32_to_cpu(sp->cmn.w2.r_a_tov) + 999) / 1000; |
526 | ||
76a95d75 | 527 | if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { |
2e0fef85 JS |
528 | spin_lock_irq(shost->host_lock); |
529 | vport->fc_flag |= FC_PUBLIC_LOOP; | |
530 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 531 | } |
532 | ||
2e0fef85 | 533 | vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID; |
dea3101e | 534 | memcpy(&ndlp->nlp_portname, &sp->portName, sizeof(struct lpfc_name)); |
92d7f7b0 | 535 | memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof(struct lpfc_name)); |
dea3101e | 536 | ndlp->nlp_class_sup = 0; |
537 | if (sp->cls1.classValid) | |
538 | ndlp->nlp_class_sup |= FC_COS_CLASS1; | |
539 | if (sp->cls2.classValid) | |
540 | ndlp->nlp_class_sup |= FC_COS_CLASS2; | |
541 | if (sp->cls3.classValid) | |
542 | ndlp->nlp_class_sup |= FC_COS_CLASS3; | |
543 | if (sp->cls4.classValid) | |
544 | ndlp->nlp_class_sup |= FC_COS_CLASS4; | |
545 | ndlp->nlp_maxframe = ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | | |
546 | sp->cmn.bbRcvSizeLsb; | |
547 | memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); | |
548 | ||
92d7f7b0 JS |
549 | if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { |
550 | if (sp->cmn.response_multiple_NPort) { | |
e8b62011 JS |
551 | lpfc_printf_vlog(vport, KERN_WARNING, |
552 | LOG_ELS | LOG_VPORT, | |
553 | "1816 FLOGI NPIV supported, " | |
554 | "response data 0x%x\n", | |
555 | sp->cmn.response_multiple_NPort); | |
92d7f7b0 | 556 | phba->link_flag |= LS_NPIV_FAB_SUPPORTED; |
92d7f7b0 JS |
557 | } else { |
558 | /* Because we asked f/w for NPIV it still expects us | |
e8b62011 JS |
559 | to call reg_vnpid atleast for the physcial host */ |
560 | lpfc_printf_vlog(vport, KERN_WARNING, | |
561 | LOG_ELS | LOG_VPORT, | |
562 | "1817 Fabric does not support NPIV " | |
563 | "- configuring single port mode.\n"); | |
92d7f7b0 JS |
564 | phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED; |
565 | } | |
566 | } | |
dea3101e | 567 | |
92d7f7b0 JS |
568 | if ((vport->fc_prevDID != vport->fc_myDID) && |
569 | !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { | |
dea3101e | 570 | |
92d7f7b0 JS |
571 | /* If our NportID changed, we need to ensure all |
572 | * remaining NPORTs get unreg_login'ed. | |
573 | */ | |
574 | list_for_each_entry_safe(np, next_np, | |
575 | &vport->fc_nodes, nlp_listp) { | |
d7c255b2 | 576 | if (!NLP_CHK_NODE_ACT(np)) |
e47c9093 | 577 | continue; |
92d7f7b0 JS |
578 | if ((np->nlp_state != NLP_STE_NPR_NODE) || |
579 | !(np->nlp_flag & NLP_NPR_ADISC)) | |
580 | continue; | |
581 | spin_lock_irq(shost->host_lock); | |
582 | np->nlp_flag &= ~NLP_NPR_ADISC; | |
583 | spin_unlock_irq(shost->host_lock); | |
584 | lpfc_unreg_rpi(vport, np); | |
585 | } | |
78730cfe | 586 | lpfc_cleanup_pending_mbox(vport); |
5af5eee7 JS |
587 | |
588 | if (phba->sli_rev == LPFC_SLI_REV4) | |
589 | lpfc_sli4_unreg_all_rpis(vport); | |
590 | ||
92d7f7b0 JS |
591 | if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { |
592 | lpfc_mbx_unreg_vpi(vport); | |
09372820 | 593 | spin_lock_irq(shost->host_lock); |
92d7f7b0 | 594 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; |
09372820 | 595 | spin_unlock_irq(shost->host_lock); |
92d7f7b0 | 596 | } |
ecfd03c6 JS |
597 | /* |
598 | * If VPI is unreged, driver need to do INIT_VPI | |
599 | * before re-registering | |
600 | */ | |
601 | if (phba->sli_rev == LPFC_SLI_REV4) { | |
602 | spin_lock_irq(shost->host_lock); | |
603 | vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; | |
604 | spin_unlock_irq(shost->host_lock); | |
605 | } | |
38b92ef8 JS |
606 | } else if ((phba->sli_rev == LPFC_SLI_REV4) && |
607 | !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { | |
608 | /* | |
609 | * Driver needs to re-reg VPI in order for f/w | |
610 | * to update the MAC address. | |
611 | */ | |
612 | lpfc_register_new_vport(phba, vport, ndlp); | |
613 | return 0; | |
92d7f7b0 | 614 | } |
dea3101e | 615 | |
6fb120a7 JS |
616 | if (phba->sli_rev < LPFC_SLI_REV4) { |
617 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_REG_LOGIN_ISSUE); | |
618 | if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED && | |
619 | vport->fc_flag & FC_VPORT_NEEDS_REG_VPI) | |
620 | lpfc_register_new_vport(phba, vport, ndlp); | |
621 | else | |
622 | lpfc_issue_fabric_reglogin(vport); | |
623 | } else { | |
624 | ndlp->nlp_type |= NLP_FABRIC; | |
625 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); | |
695a814e JS |
626 | if ((!(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) && |
627 | (vport->vpi_state & LPFC_VPI_REGISTERED)) { | |
6fb120a7 JS |
628 | lpfc_start_fdiscs(phba); |
629 | lpfc_do_scr_ns_plogi(phba, vport); | |
695a814e | 630 | } else if (vport->fc_flag & FC_VFI_REGISTERED) |
ecfd03c6 | 631 | lpfc_issue_init_vpi(vport); |
695a814e | 632 | else |
6fb120a7 | 633 | lpfc_issue_reg_vfi(vport); |
92d7f7b0 | 634 | } |
dea3101e | 635 | return 0; |
dea3101e | 636 | } |
e59058c4 | 637 | /** |
3621a710 | 638 | * lpfc_cmpl_els_flogi_nport - Completion function for flogi to an N_Port |
e59058c4 JS |
639 | * @vport: pointer to a host virtual N_Port data structure. |
640 | * @ndlp: pointer to a node-list data structure. | |
641 | * @sp: pointer to service parameter data structure. | |
642 | * | |
643 | * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback | |
644 | * function to handle the completion of a Fabric Login (FLOGI) into an N_Port | |
645 | * in a point-to-point topology. First, the @vport's N_Port Name is compared | |
646 | * with the received N_Port Name: if the @vport's N_Port Name is greater than | |
647 | * the received N_Port Name lexicographically, this node shall assign local | |
648 | * N_Port ID (PT2PT_LocalID: 1) and remote N_Port ID (PT2PT_RemoteID: 2) and | |
649 | * will send out Port Login (PLOGI) with the N_Port IDs assigned. Otherwise, | |
650 | * this node shall just wait for the remote node to issue PLOGI and assign | |
651 | * N_Port IDs. | |
652 | * | |
653 | * Return code | |
654 | * 0 - Success | |
655 | * -ENXIO - Fail | |
656 | **/ | |
dea3101e | 657 | static int |
2e0fef85 JS |
658 | lpfc_cmpl_els_flogi_nport(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
659 | struct serv_parm *sp) | |
dea3101e | 660 | { |
2e0fef85 JS |
661 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
662 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 663 | LPFC_MBOXQ_t *mbox; |
664 | int rc; | |
665 | ||
2e0fef85 JS |
666 | spin_lock_irq(shost->host_lock); |
667 | vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
668 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 669 | |
670 | phba->fc_edtov = FF_DEF_EDTOV; | |
671 | phba->fc_ratov = FF_DEF_RATOV; | |
2e0fef85 | 672 | rc = memcmp(&vport->fc_portname, &sp->portName, |
92d7f7b0 | 673 | sizeof(vport->fc_portname)); |
dea3101e | 674 | if (rc >= 0) { |
675 | /* This side will initiate the PLOGI */ | |
2e0fef85 JS |
676 | spin_lock_irq(shost->host_lock); |
677 | vport->fc_flag |= FC_PT2PT_PLOGI; | |
678 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 679 | |
680 | /* | |
681 | * N_Port ID cannot be 0, set our to LocalID the other | |
682 | * side will be RemoteID. | |
683 | */ | |
684 | ||
685 | /* not equal */ | |
686 | if (rc) | |
2e0fef85 | 687 | vport->fc_myDID = PT2PT_LocalID; |
dea3101e | 688 | |
689 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
690 | if (!mbox) | |
691 | goto fail; | |
692 | ||
693 | lpfc_config_link(phba, mbox); | |
694 | ||
695 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
ed957684 | 696 | mbox->vport = vport; |
0b727fea | 697 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
dea3101e | 698 | if (rc == MBX_NOT_FINISHED) { |
699 | mempool_free(mbox, phba->mbox_mem_pool); | |
700 | goto fail; | |
701 | } | |
e47c9093 JS |
702 | /* Decrement ndlp reference count indicating that ndlp can be |
703 | * safely released when other references to it are done. | |
704 | */ | |
329f9bc7 | 705 | lpfc_nlp_put(ndlp); |
dea3101e | 706 | |
2e0fef85 | 707 | ndlp = lpfc_findnode_did(vport, PT2PT_RemoteID); |
dea3101e | 708 | if (!ndlp) { |
709 | /* | |
710 | * Cannot find existing Fabric ndlp, so allocate a | |
711 | * new one | |
712 | */ | |
713 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
714 | if (!ndlp) | |
715 | goto fail; | |
2e0fef85 | 716 | lpfc_nlp_init(vport, ndlp, PT2PT_RemoteID); |
e47c9093 JS |
717 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { |
718 | ndlp = lpfc_enable_node(vport, ndlp, | |
719 | NLP_STE_UNUSED_NODE); | |
720 | if(!ndlp) | |
721 | goto fail; | |
dea3101e | 722 | } |
723 | ||
724 | memcpy(&ndlp->nlp_portname, &sp->portName, | |
2e0fef85 | 725 | sizeof(struct lpfc_name)); |
dea3101e | 726 | memcpy(&ndlp->nlp_nodename, &sp->nodeName, |
2e0fef85 | 727 | sizeof(struct lpfc_name)); |
e47c9093 | 728 | /* Set state will put ndlp onto node list if not already done */ |
2e0fef85 JS |
729 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
730 | spin_lock_irq(shost->host_lock); | |
dea3101e | 731 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 | 732 | spin_unlock_irq(shost->host_lock); |
e47c9093 JS |
733 | } else |
734 | /* This side will wait for the PLOGI, decrement ndlp reference | |
735 | * count indicating that ndlp can be released when other | |
736 | * references to it are done. | |
737 | */ | |
329f9bc7 | 738 | lpfc_nlp_put(ndlp); |
dea3101e | 739 | |
09372820 JS |
740 | /* If we are pt2pt with another NPort, force NPIV off! */ |
741 | phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED; | |
742 | ||
2e0fef85 JS |
743 | spin_lock_irq(shost->host_lock); |
744 | vport->fc_flag |= FC_PT2PT; | |
745 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 746 | |
747 | /* Start discovery - this should just do CLEAR_LA */ | |
2e0fef85 | 748 | lpfc_disc_start(vport); |
dea3101e | 749 | return 0; |
92d7f7b0 | 750 | fail: |
dea3101e | 751 | return -ENXIO; |
752 | } | |
753 | ||
e59058c4 | 754 | /** |
3621a710 | 755 | * lpfc_cmpl_els_flogi - Completion callback function for flogi |
e59058c4 JS |
756 | * @phba: pointer to lpfc hba data structure. |
757 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
758 | * @rspiocb: pointer to lpfc response iocb data structure. | |
759 | * | |
760 | * This routine is the top-level completion callback function for issuing | |
761 | * a Fabric Login (FLOGI) command. If the response IOCB reported error, | |
762 | * the lpfc_els_retry() routine shall be invoked to retry the FLOGI. If | |
763 | * retry has been made (either immediately or delayed with lpfc_els_retry() | |
764 | * returning 1), the command IOCB will be released and function returned. | |
765 | * If the retry attempt has been given up (possibly reach the maximum | |
766 | * number of retries), one additional decrement of ndlp reference shall be | |
767 | * invoked before going out after releasing the command IOCB. This will | |
768 | * actually release the remote node (Note, lpfc_els_free_iocb() will also | |
769 | * invoke one decrement of ndlp reference count). If no error reported in | |
770 | * the IOCB status, the command Port ID field is used to determine whether | |
771 | * this is a point-to-point topology or a fabric topology: if the Port ID | |
772 | * field is assigned, it is a fabric topology; otherwise, it is a | |
773 | * point-to-point topology. The routine lpfc_cmpl_els_flogi_fabric() or | |
774 | * lpfc_cmpl_els_flogi_nport() shall be invoked accordingly to handle the | |
775 | * specific topology completion conditions. | |
776 | **/ | |
dea3101e | 777 | static void |
329f9bc7 JS |
778 | lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
779 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 780 | { |
2e0fef85 JS |
781 | struct lpfc_vport *vport = cmdiocb->vport; |
782 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e | 783 | IOCB_t *irsp = &rspiocb->iocb; |
784 | struct lpfc_nodelist *ndlp = cmdiocb->context1; | |
785 | struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp; | |
786 | struct serv_parm *sp; | |
0c9ab6f5 | 787 | uint16_t fcf_index; |
dea3101e | 788 | int rc; |
789 | ||
790 | /* Check to see if link went down during discovery */ | |
2e0fef85 | 791 | if (lpfc_els_chk_latt(vport)) { |
fa4066b6 JS |
792 | /* One additional decrement on node reference count to |
793 | * trigger the release of the node | |
794 | */ | |
329f9bc7 | 795 | lpfc_nlp_put(ndlp); |
dea3101e | 796 | goto out; |
797 | } | |
798 | ||
858c9f6c JS |
799 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
800 | "FLOGI cmpl: status:x%x/x%x state:x%x", | |
801 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
802 | vport->port_state); | |
803 | ||
dea3101e | 804 | if (irsp->ulpStatus) { |
0c9ab6f5 | 805 | /* |
a93ff37a | 806 | * In case of FIP mode, perform roundrobin FCF failover |
0c9ab6f5 JS |
807 | * due to new FCF discovery |
808 | */ | |
809 | if ((phba->hba_flag & HBA_FIP_SUPPORT) && | |
dbb6b3ab JS |
810 | (phba->fcf.fcf_flag & FCF_DISCOVERY) && |
811 | (irsp->ulpStatus != IOSTAT_LOCAL_REJECT) && | |
812 | (irsp->un.ulpWord[4] != IOERR_SLI_ABORTED)) { | |
0c9ab6f5 | 813 | lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS, |
a93ff37a JS |
814 | "2611 FLOGI failed on FCF (x%x), " |
815 | "status:x%x/x%x, tmo:x%x, perform " | |
816 | "roundrobin FCF failover\n", | |
38b92ef8 JS |
817 | phba->fcf.current_rec.fcf_indx, |
818 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
819 | irsp->ulpTimeout); | |
0c9ab6f5 | 820 | fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba); |
a93ff37a JS |
821 | rc = lpfc_sli4_fcf_rr_next_proc(vport, fcf_index); |
822 | if (rc) | |
823 | goto out; | |
0c9ab6f5 JS |
824 | } |
825 | ||
38b92ef8 JS |
826 | /* FLOGI failure */ |
827 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
828 | "2858 FLOGI failure Status:x%x/x%x TMO:x%x\n", | |
829 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
830 | irsp->ulpTimeout); | |
831 | ||
dea3101e | 832 | /* Check for retry */ |
2e0fef85 | 833 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) |
dea3101e | 834 | goto out; |
2e0fef85 | 835 | |
76a95d75 JS |
836 | /* FLOGI failure */ |
837 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
838 | "0100 FLOGI failure Status:x%x/x%x TMO:x%x\n", | |
839 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
840 | irsp->ulpTimeout); | |
841 | ||
dea3101e | 842 | /* FLOGI failed, so there is no fabric */ |
2e0fef85 JS |
843 | spin_lock_irq(shost->host_lock); |
844 | vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
845 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 846 | |
329f9bc7 | 847 | /* If private loop, then allow max outstanding els to be |
dea3101e | 848 | * LPFC_MAX_DISC_THREADS (32). Scanning in the case of no |
849 | * alpa map would take too long otherwise. | |
850 | */ | |
851 | if (phba->alpa_map[0] == 0) { | |
3de2a653 | 852 | vport->cfg_discovery_threads = LPFC_MAX_DISC_THREADS; |
76a95d75 JS |
853 | if ((phba->sli_rev == LPFC_SLI_REV4) && |
854 | (!(vport->fc_flag & FC_VFI_REGISTERED) || | |
855 | (vport->fc_prevDID != vport->fc_myDID))) { | |
856 | if (vport->fc_flag & FC_VFI_REGISTERED) | |
857 | lpfc_sli4_unreg_all_rpis(vport); | |
858 | lpfc_issue_reg_vfi(vport); | |
859 | lpfc_nlp_put(ndlp); | |
860 | goto out; | |
861 | } | |
dea3101e | 862 | } |
dea3101e | 863 | goto flogifail; |
864 | } | |
695a814e JS |
865 | spin_lock_irq(shost->host_lock); |
866 | vport->fc_flag &= ~FC_VPORT_CVL_RCVD; | |
4b40c59e | 867 | vport->fc_flag &= ~FC_VPORT_LOGO_RCVD; |
695a814e | 868 | spin_unlock_irq(shost->host_lock); |
dea3101e | 869 | |
870 | /* | |
871 | * The FLogI succeeded. Sync the data for the CPU before | |
872 | * accessing it. | |
873 | */ | |
874 | prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); | |
875 | ||
876 | sp = prsp->virt + sizeof(uint32_t); | |
877 | ||
878 | /* FLOGI completes successfully */ | |
e8b62011 | 879 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
af901ca1 | 880 | "0101 FLOGI completes successfully " |
e8b62011 JS |
881 | "Data: x%x x%x x%x x%x\n", |
882 | irsp->un.ulpWord[4], sp->cmn.e_d_tov, | |
883 | sp->cmn.w2.r_a_tov, sp->cmn.edtovResolution); | |
dea3101e | 884 | |
2e0fef85 | 885 | if (vport->port_state == LPFC_FLOGI) { |
dea3101e | 886 | /* |
887 | * If Common Service Parameters indicate Nport | |
888 | * we are point to point, if Fport we are Fabric. | |
889 | */ | |
890 | if (sp->cmn.fPort) | |
2e0fef85 | 891 | rc = lpfc_cmpl_els_flogi_fabric(vport, ndlp, sp, irsp); |
76a95d75 | 892 | else if (!(phba->hba_flag & HBA_FCOE_MODE)) |
2e0fef85 | 893 | rc = lpfc_cmpl_els_flogi_nport(vport, ndlp, sp); |
dbb6b3ab JS |
894 | else { |
895 | lpfc_printf_vlog(vport, KERN_ERR, | |
896 | LOG_FIP | LOG_ELS, | |
897 | "2831 FLOGI response with cleared Fabric " | |
898 | "bit fcf_index 0x%x " | |
899 | "Switch Name %02x%02x%02x%02x%02x%02x%02x%02x " | |
900 | "Fabric Name " | |
901 | "%02x%02x%02x%02x%02x%02x%02x%02x\n", | |
902 | phba->fcf.current_rec.fcf_indx, | |
903 | phba->fcf.current_rec.switch_name[0], | |
904 | phba->fcf.current_rec.switch_name[1], | |
905 | phba->fcf.current_rec.switch_name[2], | |
906 | phba->fcf.current_rec.switch_name[3], | |
907 | phba->fcf.current_rec.switch_name[4], | |
908 | phba->fcf.current_rec.switch_name[5], | |
909 | phba->fcf.current_rec.switch_name[6], | |
910 | phba->fcf.current_rec.switch_name[7], | |
911 | phba->fcf.current_rec.fabric_name[0], | |
912 | phba->fcf.current_rec.fabric_name[1], | |
913 | phba->fcf.current_rec.fabric_name[2], | |
914 | phba->fcf.current_rec.fabric_name[3], | |
915 | phba->fcf.current_rec.fabric_name[4], | |
916 | phba->fcf.current_rec.fabric_name[5], | |
917 | phba->fcf.current_rec.fabric_name[6], | |
918 | phba->fcf.current_rec.fabric_name[7]); | |
919 | lpfc_nlp_put(ndlp); | |
920 | spin_lock_irq(&phba->hbalock); | |
921 | phba->fcf.fcf_flag &= ~FCF_DISCOVERY; | |
a93ff37a | 922 | phba->hba_flag &= ~(FCF_RR_INPROG | HBA_DEVLOSS_TMO); |
dbb6b3ab JS |
923 | spin_unlock_irq(&phba->hbalock); |
924 | goto out; | |
925 | } | |
0c9ab6f5 JS |
926 | if (!rc) { |
927 | /* Mark the FCF discovery process done */ | |
999d813f JS |
928 | if (phba->hba_flag & HBA_FIP_SUPPORT) |
929 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FIP | | |
930 | LOG_ELS, | |
a93ff37a JS |
931 | "2769 FLOGI to FCF (x%x) " |
932 | "completed successfully\n", | |
999d813f | 933 | phba->fcf.current_rec.fcf_indx); |
0c9ab6f5 JS |
934 | spin_lock_irq(&phba->hbalock); |
935 | phba->fcf.fcf_flag &= ~FCF_DISCOVERY; | |
a93ff37a | 936 | phba->hba_flag &= ~(FCF_RR_INPROG | HBA_DEVLOSS_TMO); |
0c9ab6f5 | 937 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 938 | goto out; |
0c9ab6f5 | 939 | } |
dea3101e | 940 | } |
941 | ||
942 | flogifail: | |
329f9bc7 | 943 | lpfc_nlp_put(ndlp); |
dea3101e | 944 | |
858c9f6c | 945 | if (!lpfc_error_lost_link(irsp)) { |
dea3101e | 946 | /* FLOGI failed, so just use loop map to make discovery list */ |
2e0fef85 | 947 | lpfc_disc_list_loopmap(vport); |
dea3101e | 948 | |
949 | /* Start discovery */ | |
2e0fef85 | 950 | lpfc_disc_start(vport); |
87af33fe JS |
951 | } else if (((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) || |
952 | ((irsp->un.ulpWord[4] != IOERR_SLI_ABORTED) && | |
953 | (irsp->un.ulpWord[4] != IOERR_SLI_DOWN))) && | |
954 | (phba->link_state != LPFC_CLEAR_LA)) { | |
955 | /* If FLOGI failed enable link interrupt. */ | |
956 | lpfc_issue_clear_la(phba, vport); | |
dea3101e | 957 | } |
dea3101e | 958 | out: |
959 | lpfc_els_free_iocb(phba, cmdiocb); | |
960 | } | |
961 | ||
e59058c4 | 962 | /** |
3621a710 | 963 | * lpfc_issue_els_flogi - Issue an flogi iocb command for a vport |
e59058c4 JS |
964 | * @vport: pointer to a host virtual N_Port data structure. |
965 | * @ndlp: pointer to a node-list data structure. | |
966 | * @retry: number of retries to the command IOCB. | |
967 | * | |
968 | * This routine issues a Fabric Login (FLOGI) Request ELS command | |
969 | * for a @vport. The initiator service parameters are put into the payload | |
970 | * of the FLOGI Request IOCB and the top-level callback function pointer | |
971 | * to lpfc_cmpl_els_flogi() routine is put to the IOCB completion callback | |
972 | * function field. The lpfc_issue_fabric_iocb routine is invoked to send | |
973 | * out FLOGI ELS command with one outstanding fabric IOCB at a time. | |
974 | * | |
975 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
976 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
977 | * will be stored into the context1 field of the IOCB for the completion | |
978 | * callback function to the FLOGI ELS command. | |
979 | * | |
980 | * Return code | |
981 | * 0 - successfully issued flogi iocb for @vport | |
982 | * 1 - failed to issue flogi iocb for @vport | |
983 | **/ | |
dea3101e | 984 | static int |
2e0fef85 | 985 | lpfc_issue_els_flogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
dea3101e | 986 | uint8_t retry) |
987 | { | |
2e0fef85 | 988 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 989 | struct serv_parm *sp; |
990 | IOCB_t *icmd; | |
991 | struct lpfc_iocbq *elsiocb; | |
992 | struct lpfc_sli_ring *pring; | |
993 | uint8_t *pcmd; | |
994 | uint16_t cmdsize; | |
995 | uint32_t tmo; | |
996 | int rc; | |
997 | ||
998 | pring = &phba->sli.ring[LPFC_ELS_RING]; | |
999 | ||
92d7f7b0 | 1000 | cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); |
2e0fef85 JS |
1001 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
1002 | ndlp->nlp_DID, ELS_CMD_FLOGI); | |
92d7f7b0 | 1003 | |
488d1469 | 1004 | if (!elsiocb) |
c9f8735b | 1005 | return 1; |
dea3101e | 1006 | |
1007 | icmd = &elsiocb->iocb; | |
1008 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
1009 | ||
1010 | /* For FLOGI request, remainder of payload is service parameters */ | |
1011 | *((uint32_t *) (pcmd)) = ELS_CMD_FLOGI; | |
92d7f7b0 JS |
1012 | pcmd += sizeof(uint32_t); |
1013 | memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); | |
dea3101e | 1014 | sp = (struct serv_parm *) pcmd; |
1015 | ||
1016 | /* Setup CSPs accordingly for Fabric */ | |
1017 | sp->cmn.e_d_tov = 0; | |
1018 | sp->cmn.w2.r_a_tov = 0; | |
1019 | sp->cls1.classValid = 0; | |
1020 | sp->cls2.seqDelivery = 1; | |
1021 | sp->cls3.seqDelivery = 1; | |
1022 | if (sp->cmn.fcphLow < FC_PH3) | |
1023 | sp->cmn.fcphLow = FC_PH3; | |
1024 | if (sp->cmn.fcphHigh < FC_PH3) | |
1025 | sp->cmn.fcphHigh = FC_PH3; | |
1026 | ||
4042629e JS |
1027 | if ((phba->sli_rev == LPFC_SLI_REV4) && |
1028 | (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == | |
1029 | LPFC_SLI_INTF_IF_TYPE_0)) { | |
6fb120a7 JS |
1030 | elsiocb->iocb.ulpCt_h = ((SLI4_CT_FCFI >> 1) & 1); |
1031 | elsiocb->iocb.ulpCt_l = (SLI4_CT_FCFI & 1); | |
1032 | /* FLOGI needs to be 3 for WQE FCFI */ | |
1033 | /* Set the fcfi to the fcfi we registered with */ | |
1034 | elsiocb->iocb.ulpContext = phba->fcf.fcfi; | |
1035 | } else if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { | |
92d7f7b0 | 1036 | sp->cmn.request_multiple_Nport = 1; |
92d7f7b0 JS |
1037 | /* For FLOGI, Let FLOGI rsp set the NPortID for VPI 0 */ |
1038 | icmd->ulpCt_h = 1; | |
1039 | icmd->ulpCt_l = 0; | |
1040 | } | |
1041 | ||
76a95d75 | 1042 | if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) { |
858c9f6c JS |
1043 | icmd->un.elsreq64.myID = 0; |
1044 | icmd->un.elsreq64.fl = 1; | |
1045 | } | |
1046 | ||
dea3101e | 1047 | tmo = phba->fc_ratov; |
1048 | phba->fc_ratov = LPFC_DISC_FLOGI_TMO; | |
2e0fef85 | 1049 | lpfc_set_disctmo(vport); |
dea3101e | 1050 | phba->fc_ratov = tmo; |
1051 | ||
1052 | phba->fc_stat.elsXmitFLOGI++; | |
1053 | elsiocb->iocb_cmpl = lpfc_cmpl_els_flogi; | |
858c9f6c JS |
1054 | |
1055 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, | |
1056 | "Issue FLOGI: opt:x%x", | |
1057 | phba->sli3_options, 0, 0); | |
1058 | ||
92d7f7b0 | 1059 | rc = lpfc_issue_fabric_iocb(phba, elsiocb); |
dea3101e | 1060 | if (rc == IOCB_ERROR) { |
1061 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 1062 | return 1; |
dea3101e | 1063 | } |
c9f8735b | 1064 | return 0; |
dea3101e | 1065 | } |
1066 | ||
e59058c4 | 1067 | /** |
3621a710 | 1068 | * lpfc_els_abort_flogi - Abort all outstanding flogi iocbs |
e59058c4 JS |
1069 | * @phba: pointer to lpfc hba data structure. |
1070 | * | |
1071 | * This routine aborts all the outstanding Fabric Login (FLOGI) IOCBs | |
1072 | * with a @phba. This routine walks all the outstanding IOCBs on the txcmplq | |
1073 | * list and issues an abort IOCB commond on each outstanding IOCB that | |
1074 | * contains a active Fabric_DID ndlp. Note that this function is to issue | |
1075 | * the abort IOCB command on all the outstanding IOCBs, thus when this | |
1076 | * function returns, it does not guarantee all the IOCBs are actually aborted. | |
1077 | * | |
1078 | * Return code | |
3ad2f3fb | 1079 | * 0 - Successfully issued abort iocb on all outstanding flogis (Always 0) |
e59058c4 | 1080 | **/ |
dea3101e | 1081 | int |
2e0fef85 | 1082 | lpfc_els_abort_flogi(struct lpfc_hba *phba) |
dea3101e | 1083 | { |
1084 | struct lpfc_sli_ring *pring; | |
1085 | struct lpfc_iocbq *iocb, *next_iocb; | |
1086 | struct lpfc_nodelist *ndlp; | |
1087 | IOCB_t *icmd; | |
1088 | ||
1089 | /* Abort outstanding I/O on NPort <nlp_DID> */ | |
1090 | lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, | |
e8b62011 JS |
1091 | "0201 Abort outstanding I/O on NPort x%x\n", |
1092 | Fabric_DID); | |
dea3101e | 1093 | |
1094 | pring = &phba->sli.ring[LPFC_ELS_RING]; | |
1095 | ||
1096 | /* | |
1097 | * Check the txcmplq for an iocb that matches the nport the driver is | |
1098 | * searching for. | |
1099 | */ | |
2e0fef85 | 1100 | spin_lock_irq(&phba->hbalock); |
dea3101e | 1101 | list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { |
1102 | icmd = &iocb->iocb; | |
2e0fef85 JS |
1103 | if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR && |
1104 | icmd->un.elsreq64.bdl.ulpIoTag32) { | |
dea3101e | 1105 | ndlp = (struct lpfc_nodelist *)(iocb->context1); |
58da1ffb JS |
1106 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && |
1107 | (ndlp->nlp_DID == Fabric_DID)) | |
07951076 | 1108 | lpfc_sli_issue_abort_iotag(phba, pring, iocb); |
dea3101e | 1109 | } |
1110 | } | |
2e0fef85 | 1111 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 1112 | |
1113 | return 0; | |
1114 | } | |
1115 | ||
e59058c4 | 1116 | /** |
3621a710 | 1117 | * lpfc_initial_flogi - Issue an initial fabric login for a vport |
e59058c4 JS |
1118 | * @vport: pointer to a host virtual N_Port data structure. |
1119 | * | |
1120 | * This routine issues an initial Fabric Login (FLOGI) for the @vport | |
1121 | * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from | |
1122 | * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and | |
1123 | * put it into the @vport's ndlp list. If an inactive ndlp found on the list, | |
1124 | * it will just be enabled and made active. The lpfc_issue_els_flogi() routine | |
1125 | * is then invoked with the @vport and the ndlp to perform the FLOGI for the | |
1126 | * @vport. | |
1127 | * | |
1128 | * Return code | |
1129 | * 0 - failed to issue initial flogi for @vport | |
1130 | * 1 - successfully issued initial flogi for @vport | |
1131 | **/ | |
dea3101e | 1132 | int |
2e0fef85 | 1133 | lpfc_initial_flogi(struct lpfc_vport *vport) |
dea3101e | 1134 | { |
2e0fef85 | 1135 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 1136 | struct lpfc_nodelist *ndlp; |
1137 | ||
98c9ea5c JS |
1138 | vport->port_state = LPFC_FLOGI; |
1139 | lpfc_set_disctmo(vport); | |
1140 | ||
c9f8735b | 1141 | /* First look for the Fabric ndlp */ |
2e0fef85 | 1142 | ndlp = lpfc_findnode_did(vport, Fabric_DID); |
c9f8735b | 1143 | if (!ndlp) { |
dea3101e | 1144 | /* Cannot find existing Fabric ndlp, so allocate a new one */ |
c9f8735b JW |
1145 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); |
1146 | if (!ndlp) | |
1147 | return 0; | |
2e0fef85 | 1148 | lpfc_nlp_init(vport, ndlp, Fabric_DID); |
6fb120a7 JS |
1149 | /* Set the node type */ |
1150 | ndlp->nlp_type |= NLP_FABRIC; | |
e47c9093 JS |
1151 | /* Put ndlp onto node list */ |
1152 | lpfc_enqueue_node(vport, ndlp); | |
1153 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
1154 | /* re-setup ndlp without removing from node list */ | |
1155 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
1156 | if (!ndlp) | |
1157 | return 0; | |
dea3101e | 1158 | } |
87af33fe | 1159 | |
5ac6b303 | 1160 | if (lpfc_issue_els_flogi(vport, ndlp, 0)) { |
fa4066b6 JS |
1161 | /* This decrement of reference count to node shall kick off |
1162 | * the release of the node. | |
1163 | */ | |
329f9bc7 | 1164 | lpfc_nlp_put(ndlp); |
5ac6b303 JS |
1165 | return 0; |
1166 | } | |
c9f8735b | 1167 | return 1; |
dea3101e | 1168 | } |
1169 | ||
e59058c4 | 1170 | /** |
3621a710 | 1171 | * lpfc_initial_fdisc - Issue an initial fabric discovery for a vport |
e59058c4 JS |
1172 | * @vport: pointer to a host virtual N_Port data structure. |
1173 | * | |
1174 | * This routine issues an initial Fabric Discover (FDISC) for the @vport | |
1175 | * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from | |
1176 | * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and | |
1177 | * put it into the @vport's ndlp list. If an inactive ndlp found on the list, | |
1178 | * it will just be enabled and made active. The lpfc_issue_els_fdisc() routine | |
1179 | * is then invoked with the @vport and the ndlp to perform the FDISC for the | |
1180 | * @vport. | |
1181 | * | |
1182 | * Return code | |
1183 | * 0 - failed to issue initial fdisc for @vport | |
1184 | * 1 - successfully issued initial fdisc for @vport | |
1185 | **/ | |
92d7f7b0 JS |
1186 | int |
1187 | lpfc_initial_fdisc(struct lpfc_vport *vport) | |
1188 | { | |
1189 | struct lpfc_hba *phba = vport->phba; | |
1190 | struct lpfc_nodelist *ndlp; | |
1191 | ||
1192 | /* First look for the Fabric ndlp */ | |
1193 | ndlp = lpfc_findnode_did(vport, Fabric_DID); | |
1194 | if (!ndlp) { | |
1195 | /* Cannot find existing Fabric ndlp, so allocate a new one */ | |
1196 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
1197 | if (!ndlp) | |
1198 | return 0; | |
1199 | lpfc_nlp_init(vport, ndlp, Fabric_DID); | |
e47c9093 JS |
1200 | /* Put ndlp onto node list */ |
1201 | lpfc_enqueue_node(vport, ndlp); | |
1202 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
1203 | /* re-setup ndlp without removing from node list */ | |
1204 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
1205 | if (!ndlp) | |
1206 | return 0; | |
92d7f7b0 | 1207 | } |
e47c9093 | 1208 | |
92d7f7b0 | 1209 | if (lpfc_issue_els_fdisc(vport, ndlp, 0)) { |
fa4066b6 JS |
1210 | /* decrement node reference count to trigger the release of |
1211 | * the node. | |
1212 | */ | |
92d7f7b0 | 1213 | lpfc_nlp_put(ndlp); |
fa4066b6 | 1214 | return 0; |
92d7f7b0 JS |
1215 | } |
1216 | return 1; | |
1217 | } | |
87af33fe | 1218 | |
e59058c4 | 1219 | /** |
3621a710 | 1220 | * lpfc_more_plogi - Check and issue remaining plogis for a vport |
e59058c4 JS |
1221 | * @vport: pointer to a host virtual N_Port data structure. |
1222 | * | |
1223 | * This routine checks whether there are more remaining Port Logins | |
1224 | * (PLOGI) to be issued for the @vport. If so, it will invoke the routine | |
1225 | * lpfc_els_disc_plogi() to go through the Node Port Recovery (NPR) nodes | |
1226 | * to issue ELS PLOGIs up to the configured discover threads with the | |
1227 | * @vport (@vport->cfg_discovery_threads). The function also decrement | |
1228 | * the @vport's num_disc_node by 1 if it is not already 0. | |
1229 | **/ | |
87af33fe | 1230 | void |
2e0fef85 | 1231 | lpfc_more_plogi(struct lpfc_vport *vport) |
dea3101e | 1232 | { |
1233 | int sentplogi; | |
1234 | ||
2e0fef85 JS |
1235 | if (vport->num_disc_nodes) |
1236 | vport->num_disc_nodes--; | |
dea3101e | 1237 | |
1238 | /* Continue discovery with <num_disc_nodes> PLOGIs to go */ | |
e8b62011 JS |
1239 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
1240 | "0232 Continue discovery with %d PLOGIs to go " | |
1241 | "Data: x%x x%x x%x\n", | |
1242 | vport->num_disc_nodes, vport->fc_plogi_cnt, | |
1243 | vport->fc_flag, vport->port_state); | |
dea3101e | 1244 | /* Check to see if there are more PLOGIs to be sent */ |
2e0fef85 JS |
1245 | if (vport->fc_flag & FC_NLP_MORE) |
1246 | /* go thru NPR nodes and issue any remaining ELS PLOGIs */ | |
1247 | sentplogi = lpfc_els_disc_plogi(vport); | |
1248 | ||
dea3101e | 1249 | return; |
1250 | } | |
1251 | ||
e59058c4 | 1252 | /** |
3621a710 | 1253 | * lpfc_plogi_confirm_nport - Confirm pologi wwpn matches stored ndlp |
e59058c4 JS |
1254 | * @phba: pointer to lpfc hba data structure. |
1255 | * @prsp: pointer to response IOCB payload. | |
1256 | * @ndlp: pointer to a node-list data structure. | |
1257 | * | |
1258 | * This routine checks and indicates whether the WWPN of an N_Port, retrieved | |
1259 | * from a PLOGI, matches the WWPN that is stored in the @ndlp for that N_POrt. | |
1260 | * The following cases are considered N_Port confirmed: | |
1261 | * 1) The N_Port is a Fabric ndlp; 2) The @ndlp is on vport list and matches | |
1262 | * the WWPN of the N_Port logged into; 3) The @ndlp is not on vport list but | |
1263 | * it does not have WWPN assigned either. If the WWPN is confirmed, the | |
1264 | * pointer to the @ndlp will be returned. If the WWPN is not confirmed: | |
1265 | * 1) if there is a node on vport list other than the @ndlp with the same | |
1266 | * WWPN of the N_Port PLOGI logged into, the lpfc_unreg_rpi() will be invoked | |
1267 | * on that node to release the RPI associated with the node; 2) if there is | |
1268 | * no node found on vport list with the same WWPN of the N_Port PLOGI logged | |
1269 | * into, a new node shall be allocated (or activated). In either case, the | |
1270 | * parameters of the @ndlp shall be copied to the new_ndlp, the @ndlp shall | |
1271 | * be released and the new_ndlp shall be put on to the vport node list and | |
1272 | * its pointer returned as the confirmed node. | |
1273 | * | |
1274 | * Note that before the @ndlp got "released", the keepDID from not-matching | |
1275 | * or inactive "new_ndlp" on the vport node list is assigned to the nlp_DID | |
1276 | * of the @ndlp. This is because the release of @ndlp is actually to put it | |
1277 | * into an inactive state on the vport node list and the vport node list | |
1278 | * management algorithm does not allow two node with a same DID. | |
1279 | * | |
1280 | * Return code | |
1281 | * pointer to the PLOGI N_Port @ndlp | |
1282 | **/ | |
488d1469 | 1283 | static struct lpfc_nodelist * |
92d7f7b0 | 1284 | lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp, |
488d1469 JS |
1285 | struct lpfc_nodelist *ndlp) |
1286 | { | |
2e0fef85 | 1287 | struct lpfc_vport *vport = ndlp->vport; |
488d1469 | 1288 | struct lpfc_nodelist *new_ndlp; |
0ff10d46 JS |
1289 | struct lpfc_rport_data *rdata; |
1290 | struct fc_rport *rport; | |
488d1469 | 1291 | struct serv_parm *sp; |
92d7f7b0 | 1292 | uint8_t name[sizeof(struct lpfc_name)]; |
58da1ffb | 1293 | uint32_t rc, keepDID = 0; |
38b92ef8 JS |
1294 | int put_node; |
1295 | int put_rport; | |
19ca7609 | 1296 | struct lpfc_node_rrqs rrq; |
488d1469 | 1297 | |
2fb9bd8b JS |
1298 | /* Fabric nodes can have the same WWPN so we don't bother searching |
1299 | * by WWPN. Just return the ndlp that was given to us. | |
1300 | */ | |
1301 | if (ndlp->nlp_type & NLP_FABRIC) | |
1302 | return ndlp; | |
1303 | ||
92d7f7b0 | 1304 | sp = (struct serv_parm *) ((uint8_t *) prsp + sizeof(uint32_t)); |
685f0bf7 | 1305 | memset(name, 0, sizeof(struct lpfc_name)); |
488d1469 | 1306 | |
685f0bf7 | 1307 | /* Now we find out if the NPort we are logging into, matches the WWPN |
488d1469 JS |
1308 | * we have for that ndlp. If not, we have some work to do. |
1309 | */ | |
2e0fef85 | 1310 | new_ndlp = lpfc_findnode_wwpn(vport, &sp->portName); |
488d1469 | 1311 | |
e47c9093 | 1312 | if (new_ndlp == ndlp && NLP_CHK_NODE_ACT(new_ndlp)) |
488d1469 | 1313 | return ndlp; |
19ca7609 | 1314 | memset(&rrq.xri_bitmap, 0, sizeof(new_ndlp->active_rrqs.xri_bitmap)); |
488d1469 JS |
1315 | |
1316 | if (!new_ndlp) { | |
2e0fef85 JS |
1317 | rc = memcmp(&ndlp->nlp_portname, name, |
1318 | sizeof(struct lpfc_name)); | |
92795650 JS |
1319 | if (!rc) |
1320 | return ndlp; | |
488d1469 JS |
1321 | new_ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_ATOMIC); |
1322 | if (!new_ndlp) | |
1323 | return ndlp; | |
2e0fef85 | 1324 | lpfc_nlp_init(vport, new_ndlp, ndlp->nlp_DID); |
e47c9093 | 1325 | } else if (!NLP_CHK_NODE_ACT(new_ndlp)) { |
58da1ffb JS |
1326 | rc = memcmp(&ndlp->nlp_portname, name, |
1327 | sizeof(struct lpfc_name)); | |
1328 | if (!rc) | |
1329 | return ndlp; | |
e47c9093 JS |
1330 | new_ndlp = lpfc_enable_node(vport, new_ndlp, |
1331 | NLP_STE_UNUSED_NODE); | |
1332 | if (!new_ndlp) | |
1333 | return ndlp; | |
58da1ffb | 1334 | keepDID = new_ndlp->nlp_DID; |
19ca7609 JS |
1335 | if (phba->sli_rev == LPFC_SLI_REV4) |
1336 | memcpy(&rrq.xri_bitmap, | |
1337 | &new_ndlp->active_rrqs.xri_bitmap, | |
1338 | sizeof(new_ndlp->active_rrqs.xri_bitmap)); | |
1339 | } else { | |
58da1ffb | 1340 | keepDID = new_ndlp->nlp_DID; |
19ca7609 JS |
1341 | if (phba->sli_rev == LPFC_SLI_REV4) |
1342 | memcpy(&rrq.xri_bitmap, | |
1343 | &new_ndlp->active_rrqs.xri_bitmap, | |
1344 | sizeof(new_ndlp->active_rrqs.xri_bitmap)); | |
1345 | } | |
488d1469 | 1346 | |
2e0fef85 | 1347 | lpfc_unreg_rpi(vport, new_ndlp); |
488d1469 | 1348 | new_ndlp->nlp_DID = ndlp->nlp_DID; |
92795650 | 1349 | new_ndlp->nlp_prev_state = ndlp->nlp_prev_state; |
19ca7609 JS |
1350 | if (phba->sli_rev == LPFC_SLI_REV4) |
1351 | memcpy(new_ndlp->active_rrqs.xri_bitmap, | |
1352 | &ndlp->active_rrqs.xri_bitmap, | |
1353 | sizeof(ndlp->active_rrqs.xri_bitmap)); | |
0ff10d46 JS |
1354 | |
1355 | if (ndlp->nlp_flag & NLP_NPR_2B_DISC) | |
1356 | new_ndlp->nlp_flag |= NLP_NPR_2B_DISC; | |
1357 | ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; | |
1358 | ||
e47c9093 | 1359 | /* Set state will put new_ndlp on to node list if not already done */ |
2e0fef85 | 1360 | lpfc_nlp_set_state(vport, new_ndlp, ndlp->nlp_state); |
488d1469 | 1361 | |
2e0fef85 | 1362 | /* Move this back to NPR state */ |
87af33fe JS |
1363 | if (memcmp(&ndlp->nlp_portname, name, sizeof(struct lpfc_name)) == 0) { |
1364 | /* The new_ndlp is replacing ndlp totally, so we need | |
1365 | * to put ndlp on UNUSED list and try to free it. | |
1366 | */ | |
0ff10d46 JS |
1367 | |
1368 | /* Fix up the rport accordingly */ | |
1369 | rport = ndlp->rport; | |
1370 | if (rport) { | |
1371 | rdata = rport->dd_data; | |
1372 | if (rdata->pnode == ndlp) { | |
1373 | lpfc_nlp_put(ndlp); | |
1374 | ndlp->rport = NULL; | |
1375 | rdata->pnode = lpfc_nlp_get(new_ndlp); | |
1376 | new_ndlp->rport = rport; | |
1377 | } | |
1378 | new_ndlp->nlp_type = ndlp->nlp_type; | |
1379 | } | |
58da1ffb JS |
1380 | /* We shall actually free the ndlp with both nlp_DID and |
1381 | * nlp_portname fields equals 0 to avoid any ndlp on the | |
1382 | * nodelist never to be used. | |
1383 | */ | |
1384 | if (ndlp->nlp_DID == 0) { | |
1385 | spin_lock_irq(&phba->ndlp_lock); | |
1386 | NLP_SET_FREE_REQ(ndlp); | |
1387 | spin_unlock_irq(&phba->ndlp_lock); | |
1388 | } | |
0ff10d46 | 1389 | |
58da1ffb JS |
1390 | /* Two ndlps cannot have the same did on the nodelist */ |
1391 | ndlp->nlp_DID = keepDID; | |
19ca7609 JS |
1392 | if (phba->sli_rev == LPFC_SLI_REV4) |
1393 | memcpy(&ndlp->active_rrqs.xri_bitmap, | |
1394 | &rrq.xri_bitmap, | |
1395 | sizeof(ndlp->active_rrqs.xri_bitmap)); | |
2e0fef85 | 1396 | lpfc_drop_node(vport, ndlp); |
87af33fe | 1397 | } |
92795650 | 1398 | else { |
2e0fef85 | 1399 | lpfc_unreg_rpi(vport, ndlp); |
58da1ffb JS |
1400 | /* Two ndlps cannot have the same did */ |
1401 | ndlp->nlp_DID = keepDID; | |
19ca7609 JS |
1402 | if (phba->sli_rev == LPFC_SLI_REV4) |
1403 | memcpy(&ndlp->active_rrqs.xri_bitmap, | |
1404 | &rrq.xri_bitmap, | |
1405 | sizeof(ndlp->active_rrqs.xri_bitmap)); | |
2e0fef85 | 1406 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
38b92ef8 JS |
1407 | /* Since we are swapping the ndlp passed in with the new one |
1408 | * and the did has already been swapped, copy over the | |
1409 | * state and names. | |
1410 | */ | |
1411 | memcpy(&new_ndlp->nlp_portname, &ndlp->nlp_portname, | |
1412 | sizeof(struct lpfc_name)); | |
1413 | memcpy(&new_ndlp->nlp_nodename, &ndlp->nlp_nodename, | |
1414 | sizeof(struct lpfc_name)); | |
1415 | new_ndlp->nlp_state = ndlp->nlp_state; | |
1416 | /* Fix up the rport accordingly */ | |
1417 | rport = ndlp->rport; | |
1418 | if (rport) { | |
1419 | rdata = rport->dd_data; | |
1420 | put_node = rdata->pnode != NULL; | |
1421 | put_rport = ndlp->rport != NULL; | |
1422 | rdata->pnode = NULL; | |
1423 | ndlp->rport = NULL; | |
1424 | if (put_node) | |
1425 | lpfc_nlp_put(ndlp); | |
1426 | if (put_rport) | |
1427 | put_device(&rport->dev); | |
1428 | } | |
92795650 | 1429 | } |
488d1469 JS |
1430 | return new_ndlp; |
1431 | } | |
1432 | ||
e59058c4 | 1433 | /** |
3621a710 | 1434 | * lpfc_end_rscn - Check and handle more rscn for a vport |
e59058c4 JS |
1435 | * @vport: pointer to a host virtual N_Port data structure. |
1436 | * | |
1437 | * This routine checks whether more Registration State Change | |
1438 | * Notifications (RSCNs) came in while the discovery state machine was in | |
1439 | * the FC_RSCN_MODE. If so, the lpfc_els_handle_rscn() routine will be | |
1440 | * invoked to handle the additional RSCNs for the @vport. Otherwise, the | |
1441 | * FC_RSCN_MODE bit will be cleared with the @vport to mark as the end of | |
1442 | * handling the RSCNs. | |
1443 | **/ | |
87af33fe JS |
1444 | void |
1445 | lpfc_end_rscn(struct lpfc_vport *vport) | |
1446 | { | |
1447 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
1448 | ||
1449 | if (vport->fc_flag & FC_RSCN_MODE) { | |
1450 | /* | |
1451 | * Check to see if more RSCNs came in while we were | |
1452 | * processing this one. | |
1453 | */ | |
1454 | if (vport->fc_rscn_id_cnt || | |
1455 | (vport->fc_flag & FC_RSCN_DISCOVERY) != 0) | |
1456 | lpfc_els_handle_rscn(vport); | |
1457 | else { | |
1458 | spin_lock_irq(shost->host_lock); | |
1459 | vport->fc_flag &= ~FC_RSCN_MODE; | |
1460 | spin_unlock_irq(shost->host_lock); | |
1461 | } | |
1462 | } | |
1463 | } | |
1464 | ||
19ca7609 JS |
1465 | /** |
1466 | * lpfc_cmpl_els_rrq - Completion handled for els RRQs. | |
1467 | * @phba: pointer to lpfc hba data structure. | |
1468 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
1469 | * @rspiocb: pointer to lpfc response iocb data structure. | |
1470 | * | |
1471 | * This routine will call the clear rrq function to free the rrq and | |
1472 | * clear the xri's bit in the ndlp's xri_bitmap. If the ndlp does not | |
1473 | * exist then the clear_rrq is still called because the rrq needs to | |
1474 | * be freed. | |
1475 | **/ | |
1476 | ||
1477 | static void | |
1478 | lpfc_cmpl_els_rrq(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
1479 | struct lpfc_iocbq *rspiocb) | |
1480 | { | |
1481 | struct lpfc_vport *vport = cmdiocb->vport; | |
1482 | IOCB_t *irsp; | |
1483 | struct lpfc_nodelist *ndlp; | |
1484 | struct lpfc_node_rrq *rrq; | |
1485 | ||
1486 | /* we pass cmdiocb to state machine which needs rspiocb as well */ | |
1487 | rrq = cmdiocb->context_un.rrq; | |
1488 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
1489 | ||
1490 | irsp = &rspiocb->iocb; | |
1491 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, | |
1492 | "RRQ cmpl: status:x%x/x%x did:x%x", | |
1493 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1494 | irsp->un.elsreq64.remoteID); | |
1495 | ||
1496 | ndlp = lpfc_findnode_did(vport, irsp->un.elsreq64.remoteID); | |
1497 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || ndlp != rrq->ndlp) { | |
1498 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
1499 | "2882 RRQ completes to NPort x%x " | |
1500 | "with no ndlp. Data: x%x x%x x%x\n", | |
1501 | irsp->un.elsreq64.remoteID, | |
1502 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1503 | irsp->ulpIoTag); | |
1504 | goto out; | |
1505 | } | |
1506 | ||
1507 | /* rrq completes to NPort <nlp_DID> */ | |
1508 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
1509 | "2880 RRQ completes to NPort x%x " | |
1510 | "Data: x%x x%x x%x x%x x%x\n", | |
1511 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
1512 | irsp->ulpTimeout, rrq->xritag, rrq->rxid); | |
1513 | ||
1514 | if (irsp->ulpStatus) { | |
1515 | /* Check for retry */ | |
1516 | /* RRQ failed Don't print the vport to vport rjts */ | |
1517 | if (irsp->ulpStatus != IOSTAT_LS_RJT || | |
1518 | (((irsp->un.ulpWord[4]) >> 16 != LSRJT_INVALID_CMD) && | |
1519 | ((irsp->un.ulpWord[4]) >> 16 != LSRJT_UNABLE_TPC)) || | |
1520 | (phba)->pport->cfg_log_verbose & LOG_ELS) | |
1521 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
1522 | "2881 RRQ failure DID:%06X Status:x%x/x%x\n", | |
1523 | ndlp->nlp_DID, irsp->ulpStatus, | |
1524 | irsp->un.ulpWord[4]); | |
1525 | } | |
1526 | out: | |
1527 | if (rrq) | |
1528 | lpfc_clr_rrq_active(phba, rrq->xritag, rrq); | |
1529 | lpfc_els_free_iocb(phba, cmdiocb); | |
1530 | return; | |
1531 | } | |
e59058c4 | 1532 | /** |
3621a710 | 1533 | * lpfc_cmpl_els_plogi - Completion callback function for plogi |
e59058c4 JS |
1534 | * @phba: pointer to lpfc hba data structure. |
1535 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
1536 | * @rspiocb: pointer to lpfc response iocb data structure. | |
1537 | * | |
1538 | * This routine is the completion callback function for issuing the Port | |
1539 | * Login (PLOGI) command. For PLOGI completion, there must be an active | |
1540 | * ndlp on the vport node list that matches the remote node ID from the | |
1541 | * PLOGI reponse IOCB. If such ndlp does not exist, the PLOGI is simply | |
1542 | * ignored and command IOCB released. The PLOGI response IOCB status is | |
1543 | * checked for error conditons. If there is error status reported, PLOGI | |
1544 | * retry shall be attempted by invoking the lpfc_els_retry() routine. | |
1545 | * Otherwise, the lpfc_plogi_confirm_nport() routine shall be invoked on | |
1546 | * the ndlp and the NLP_EVT_CMPL_PLOGI state to the Discover State Machine | |
1547 | * (DSM) is set for this PLOGI completion. Finally, it checks whether | |
1548 | * there are additional N_Port nodes with the vport that need to perform | |
1549 | * PLOGI. If so, the lpfc_more_plogi() routine is invoked to issue addition | |
1550 | * PLOGIs. | |
1551 | **/ | |
dea3101e | 1552 | static void |
2e0fef85 JS |
1553 | lpfc_cmpl_els_plogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
1554 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 1555 | { |
2e0fef85 JS |
1556 | struct lpfc_vport *vport = cmdiocb->vport; |
1557 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e | 1558 | IOCB_t *irsp; |
dea3101e | 1559 | struct lpfc_nodelist *ndlp; |
92795650 | 1560 | struct lpfc_dmabuf *prsp; |
dea3101e | 1561 | int disc, rc, did, type; |
1562 | ||
dea3101e | 1563 | /* we pass cmdiocb to state machine which needs rspiocb as well */ |
1564 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
1565 | ||
1566 | irsp = &rspiocb->iocb; | |
858c9f6c JS |
1567 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1568 | "PLOGI cmpl: status:x%x/x%x did:x%x", | |
1569 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1570 | irsp->un.elsreq64.remoteID); | |
1571 | ||
2e0fef85 | 1572 | ndlp = lpfc_findnode_did(vport, irsp->un.elsreq64.remoteID); |
e47c9093 | 1573 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { |
e8b62011 JS |
1574 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
1575 | "0136 PLOGI completes to NPort x%x " | |
1576 | "with no ndlp. Data: x%x x%x x%x\n", | |
1577 | irsp->un.elsreq64.remoteID, | |
1578 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1579 | irsp->ulpIoTag); | |
488d1469 | 1580 | goto out; |
ed957684 | 1581 | } |
dea3101e | 1582 | |
1583 | /* Since ndlp can be freed in the disc state machine, note if this node | |
1584 | * is being used during discovery. | |
1585 | */ | |
2e0fef85 | 1586 | spin_lock_irq(shost->host_lock); |
dea3101e | 1587 | disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC); |
488d1469 | 1588 | ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; |
2e0fef85 | 1589 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1590 | rc = 0; |
1591 | ||
1592 | /* PLOGI completes to NPort <nlp_DID> */ | |
e8b62011 JS |
1593 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
1594 | "0102 PLOGI completes to NPort x%x " | |
1595 | "Data: x%x x%x x%x x%x x%x\n", | |
1596 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
1597 | irsp->ulpTimeout, disc, vport->num_disc_nodes); | |
dea3101e | 1598 | /* Check to see if link went down during discovery */ |
2e0fef85 JS |
1599 | if (lpfc_els_chk_latt(vport)) { |
1600 | spin_lock_irq(shost->host_lock); | |
dea3101e | 1601 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 | 1602 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1603 | goto out; |
1604 | } | |
1605 | ||
1606 | /* ndlp could be freed in DSM, save these values now */ | |
1607 | type = ndlp->nlp_type; | |
1608 | did = ndlp->nlp_DID; | |
1609 | ||
1610 | if (irsp->ulpStatus) { | |
1611 | /* Check for retry */ | |
1612 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { | |
1613 | /* ELS command is being retried */ | |
1614 | if (disc) { | |
2e0fef85 | 1615 | spin_lock_irq(shost->host_lock); |
dea3101e | 1616 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 | 1617 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1618 | } |
1619 | goto out; | |
1620 | } | |
2a9bf3d0 JS |
1621 | /* PLOGI failed Don't print the vport to vport rjts */ |
1622 | if (irsp->ulpStatus != IOSTAT_LS_RJT || | |
1623 | (((irsp->un.ulpWord[4]) >> 16 != LSRJT_INVALID_CMD) && | |
1624 | ((irsp->un.ulpWord[4]) >> 16 != LSRJT_UNABLE_TPC)) || | |
1625 | (phba)->pport->cfg_log_verbose & LOG_ELS) | |
1626 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
e40a02c1 JS |
1627 | "2753 PLOGI failure DID:%06X Status:x%x/x%x\n", |
1628 | ndlp->nlp_DID, irsp->ulpStatus, | |
1629 | irsp->un.ulpWord[4]); | |
dea3101e | 1630 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ |
e47c9093 | 1631 | if (lpfc_error_lost_link(irsp)) |
c9f8735b | 1632 | rc = NLP_STE_FREED_NODE; |
e47c9093 | 1633 | else |
2e0fef85 | 1634 | rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 1635 | NLP_EVT_CMPL_PLOGI); |
dea3101e | 1636 | } else { |
1637 | /* Good status, call state machine */ | |
92795650 | 1638 | prsp = list_entry(((struct lpfc_dmabuf *) |
92d7f7b0 JS |
1639 | cmdiocb->context2)->list.next, |
1640 | struct lpfc_dmabuf, list); | |
1641 | ndlp = lpfc_plogi_confirm_nport(phba, prsp->virt, ndlp); | |
2e0fef85 | 1642 | rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 1643 | NLP_EVT_CMPL_PLOGI); |
dea3101e | 1644 | } |
1645 | ||
2e0fef85 | 1646 | if (disc && vport->num_disc_nodes) { |
dea3101e | 1647 | /* Check to see if there are more PLOGIs to be sent */ |
2e0fef85 | 1648 | lpfc_more_plogi(vport); |
dea3101e | 1649 | |
2e0fef85 JS |
1650 | if (vport->num_disc_nodes == 0) { |
1651 | spin_lock_irq(shost->host_lock); | |
1652 | vport->fc_flag &= ~FC_NDISC_ACTIVE; | |
1653 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 1654 | |
2e0fef85 | 1655 | lpfc_can_disctmo(vport); |
87af33fe | 1656 | lpfc_end_rscn(vport); |
dea3101e | 1657 | } |
1658 | } | |
1659 | ||
1660 | out: | |
1661 | lpfc_els_free_iocb(phba, cmdiocb); | |
1662 | return; | |
1663 | } | |
1664 | ||
e59058c4 | 1665 | /** |
3621a710 | 1666 | * lpfc_issue_els_plogi - Issue an plogi iocb command for a vport |
e59058c4 JS |
1667 | * @vport: pointer to a host virtual N_Port data structure. |
1668 | * @did: destination port identifier. | |
1669 | * @retry: number of retries to the command IOCB. | |
1670 | * | |
1671 | * This routine issues a Port Login (PLOGI) command to a remote N_Port | |
1672 | * (with the @did) for a @vport. Before issuing a PLOGI to a remote N_Port, | |
1673 | * the ndlp with the remote N_Port DID must exist on the @vport's ndlp list. | |
1674 | * This routine constructs the proper feilds of the PLOGI IOCB and invokes | |
1675 | * the lpfc_sli_issue_iocb() routine to send out PLOGI ELS command. | |
1676 | * | |
1677 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
1678 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
1679 | * will be stored into the context1 field of the IOCB for the completion | |
1680 | * callback function to the PLOGI ELS command. | |
1681 | * | |
1682 | * Return code | |
1683 | * 0 - Successfully issued a plogi for @vport | |
1684 | * 1 - failed to issue a plogi for @vport | |
1685 | **/ | |
dea3101e | 1686 | int |
2e0fef85 | 1687 | lpfc_issue_els_plogi(struct lpfc_vport *vport, uint32_t did, uint8_t retry) |
dea3101e | 1688 | { |
2e0fef85 | 1689 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 1690 | struct serv_parm *sp; |
1691 | IOCB_t *icmd; | |
98c9ea5c | 1692 | struct lpfc_nodelist *ndlp; |
dea3101e | 1693 | struct lpfc_iocbq *elsiocb; |
dea3101e | 1694 | struct lpfc_sli *psli; |
1695 | uint8_t *pcmd; | |
1696 | uint16_t cmdsize; | |
92d7f7b0 | 1697 | int ret; |
dea3101e | 1698 | |
1699 | psli = &phba->sli; | |
dea3101e | 1700 | |
98c9ea5c | 1701 | ndlp = lpfc_findnode_did(vport, did); |
e47c9093 JS |
1702 | if (ndlp && !NLP_CHK_NODE_ACT(ndlp)) |
1703 | ndlp = NULL; | |
98c9ea5c | 1704 | |
e47c9093 | 1705 | /* If ndlp is not NULL, we will bump the reference count on it */ |
92d7f7b0 | 1706 | cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); |
98c9ea5c | 1707 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did, |
2e0fef85 | 1708 | ELS_CMD_PLOGI); |
c9f8735b JW |
1709 | if (!elsiocb) |
1710 | return 1; | |
dea3101e | 1711 | |
1712 | icmd = &elsiocb->iocb; | |
1713 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
1714 | ||
1715 | /* For PLOGI request, remainder of payload is service parameters */ | |
1716 | *((uint32_t *) (pcmd)) = ELS_CMD_PLOGI; | |
92d7f7b0 JS |
1717 | pcmd += sizeof(uint32_t); |
1718 | memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); | |
dea3101e | 1719 | sp = (struct serv_parm *) pcmd; |
1720 | ||
5ac6b303 JS |
1721 | /* |
1722 | * If we are a N-port connected to a Fabric, fix-up paramm's so logins | |
1723 | * to device on remote loops work. | |
1724 | */ | |
1725 | if ((vport->fc_flag & FC_FABRIC) && !(vport->fc_flag & FC_PUBLIC_LOOP)) | |
1726 | sp->cmn.altBbCredit = 1; | |
1727 | ||
dea3101e | 1728 | if (sp->cmn.fcphLow < FC_PH_4_3) |
1729 | sp->cmn.fcphLow = FC_PH_4_3; | |
1730 | ||
1731 | if (sp->cmn.fcphHigh < FC_PH3) | |
1732 | sp->cmn.fcphHigh = FC_PH3; | |
1733 | ||
858c9f6c JS |
1734 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1735 | "Issue PLOGI: did:x%x", | |
1736 | did, 0, 0); | |
1737 | ||
dea3101e | 1738 | phba->fc_stat.elsXmitPLOGI++; |
1739 | elsiocb->iocb_cmpl = lpfc_cmpl_els_plogi; | |
3772a991 | 1740 | ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
92d7f7b0 JS |
1741 | |
1742 | if (ret == IOCB_ERROR) { | |
dea3101e | 1743 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 1744 | return 1; |
dea3101e | 1745 | } |
c9f8735b | 1746 | return 0; |
dea3101e | 1747 | } |
1748 | ||
e59058c4 | 1749 | /** |
3621a710 | 1750 | * lpfc_cmpl_els_prli - Completion callback function for prli |
e59058c4 JS |
1751 | * @phba: pointer to lpfc hba data structure. |
1752 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
1753 | * @rspiocb: pointer to lpfc response iocb data structure. | |
1754 | * | |
1755 | * This routine is the completion callback function for a Process Login | |
1756 | * (PRLI) ELS command. The PRLI response IOCB status is checked for error | |
1757 | * status. If there is error status reported, PRLI retry shall be attempted | |
1758 | * by invoking the lpfc_els_retry() routine. Otherwise, the state | |
1759 | * NLP_EVT_CMPL_PRLI is sent to the Discover State Machine (DSM) for this | |
1760 | * ndlp to mark the PRLI completion. | |
1761 | **/ | |
dea3101e | 1762 | static void |
2e0fef85 JS |
1763 | lpfc_cmpl_els_prli(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
1764 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 1765 | { |
2e0fef85 JS |
1766 | struct lpfc_vport *vport = cmdiocb->vport; |
1767 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e | 1768 | IOCB_t *irsp; |
1769 | struct lpfc_sli *psli; | |
1770 | struct lpfc_nodelist *ndlp; | |
1771 | ||
1772 | psli = &phba->sli; | |
1773 | /* we pass cmdiocb to state machine which needs rspiocb as well */ | |
1774 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
1775 | ||
1776 | irsp = &(rspiocb->iocb); | |
1777 | ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
2e0fef85 | 1778 | spin_lock_irq(shost->host_lock); |
dea3101e | 1779 | ndlp->nlp_flag &= ~NLP_PRLI_SND; |
2e0fef85 | 1780 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1781 | |
858c9f6c JS |
1782 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1783 | "PRLI cmpl: status:x%x/x%x did:x%x", | |
1784 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1785 | ndlp->nlp_DID); | |
dea3101e | 1786 | /* PRLI completes to NPort <nlp_DID> */ |
e8b62011 JS |
1787 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
1788 | "0103 PRLI completes to NPort x%x " | |
1789 | "Data: x%x x%x x%x x%x\n", | |
1790 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
1791 | irsp->ulpTimeout, vport->num_disc_nodes); | |
dea3101e | 1792 | |
2e0fef85 | 1793 | vport->fc_prli_sent--; |
dea3101e | 1794 | /* Check to see if link went down during discovery */ |
2e0fef85 | 1795 | if (lpfc_els_chk_latt(vport)) |
dea3101e | 1796 | goto out; |
1797 | ||
1798 | if (irsp->ulpStatus) { | |
1799 | /* Check for retry */ | |
1800 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { | |
1801 | /* ELS command is being retried */ | |
1802 | goto out; | |
1803 | } | |
1804 | /* PRLI failed */ | |
e40a02c1 JS |
1805 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
1806 | "2754 PRLI failure DID:%06X Status:x%x/x%x\n", | |
1807 | ndlp->nlp_DID, irsp->ulpStatus, | |
1808 | irsp->un.ulpWord[4]); | |
dea3101e | 1809 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ |
e47c9093 | 1810 | if (lpfc_error_lost_link(irsp)) |
dea3101e | 1811 | goto out; |
e47c9093 | 1812 | else |
2e0fef85 | 1813 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 1814 | NLP_EVT_CMPL_PRLI); |
e47c9093 | 1815 | } else |
dea3101e | 1816 | /* Good status, call state machine */ |
2e0fef85 | 1817 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 1818 | NLP_EVT_CMPL_PRLI); |
dea3101e | 1819 | out: |
1820 | lpfc_els_free_iocb(phba, cmdiocb); | |
1821 | return; | |
1822 | } | |
1823 | ||
e59058c4 | 1824 | /** |
3621a710 | 1825 | * lpfc_issue_els_prli - Issue a prli iocb command for a vport |
e59058c4 JS |
1826 | * @vport: pointer to a host virtual N_Port data structure. |
1827 | * @ndlp: pointer to a node-list data structure. | |
1828 | * @retry: number of retries to the command IOCB. | |
1829 | * | |
1830 | * This routine issues a Process Login (PRLI) ELS command for the | |
1831 | * @vport. The PRLI service parameters are set up in the payload of the | |
1832 | * PRLI Request command and the pointer to lpfc_cmpl_els_prli() routine | |
1833 | * is put to the IOCB completion callback func field before invoking the | |
1834 | * routine lpfc_sli_issue_iocb() to send out PRLI command. | |
1835 | * | |
1836 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
1837 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
1838 | * will be stored into the context1 field of the IOCB for the completion | |
1839 | * callback function to the PRLI ELS command. | |
1840 | * | |
1841 | * Return code | |
1842 | * 0 - successfully issued prli iocb command for @vport | |
1843 | * 1 - failed to issue prli iocb command for @vport | |
1844 | **/ | |
dea3101e | 1845 | int |
2e0fef85 | 1846 | lpfc_issue_els_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
dea3101e | 1847 | uint8_t retry) |
1848 | { | |
2e0fef85 JS |
1849 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
1850 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 1851 | PRLI *npr; |
1852 | IOCB_t *icmd; | |
1853 | struct lpfc_iocbq *elsiocb; | |
dea3101e | 1854 | uint8_t *pcmd; |
1855 | uint16_t cmdsize; | |
1856 | ||
92d7f7b0 | 1857 | cmdsize = (sizeof(uint32_t) + sizeof(PRLI)); |
2e0fef85 JS |
1858 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
1859 | ndlp->nlp_DID, ELS_CMD_PRLI); | |
488d1469 | 1860 | if (!elsiocb) |
c9f8735b | 1861 | return 1; |
dea3101e | 1862 | |
1863 | icmd = &elsiocb->iocb; | |
1864 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
1865 | ||
1866 | /* For PRLI request, remainder of payload is service parameters */ | |
92d7f7b0 | 1867 | memset(pcmd, 0, (sizeof(PRLI) + sizeof(uint32_t))); |
dea3101e | 1868 | *((uint32_t *) (pcmd)) = ELS_CMD_PRLI; |
92d7f7b0 | 1869 | pcmd += sizeof(uint32_t); |
dea3101e | 1870 | |
1871 | /* For PRLI, remainder of payload is PRLI parameter page */ | |
1872 | npr = (PRLI *) pcmd; | |
1873 | /* | |
1874 | * If our firmware version is 3.20 or later, | |
1875 | * set the following bits for FC-TAPE support. | |
1876 | */ | |
1877 | if (phba->vpd.rev.feaLevelHigh >= 0x02) { | |
1878 | npr->ConfmComplAllowed = 1; | |
1879 | npr->Retry = 1; | |
1880 | npr->TaskRetryIdReq = 1; | |
1881 | } | |
1882 | npr->estabImagePair = 1; | |
1883 | npr->readXferRdyDis = 1; | |
1884 | ||
1885 | /* For FCP support */ | |
1886 | npr->prliType = PRLI_FCP_TYPE; | |
1887 | npr->initiatorFunc = 1; | |
1888 | ||
858c9f6c JS |
1889 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1890 | "Issue PRLI: did:x%x", | |
1891 | ndlp->nlp_DID, 0, 0); | |
1892 | ||
dea3101e | 1893 | phba->fc_stat.elsXmitPRLI++; |
1894 | elsiocb->iocb_cmpl = lpfc_cmpl_els_prli; | |
2e0fef85 | 1895 | spin_lock_irq(shost->host_lock); |
dea3101e | 1896 | ndlp->nlp_flag |= NLP_PRLI_SND; |
2e0fef85 | 1897 | spin_unlock_irq(shost->host_lock); |
3772a991 JS |
1898 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
1899 | IOCB_ERROR) { | |
2e0fef85 | 1900 | spin_lock_irq(shost->host_lock); |
dea3101e | 1901 | ndlp->nlp_flag &= ~NLP_PRLI_SND; |
2e0fef85 | 1902 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1903 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 1904 | return 1; |
dea3101e | 1905 | } |
2e0fef85 | 1906 | vport->fc_prli_sent++; |
c9f8735b | 1907 | return 0; |
dea3101e | 1908 | } |
1909 | ||
90160e01 | 1910 | /** |
3621a710 | 1911 | * lpfc_rscn_disc - Perform rscn discovery for a vport |
90160e01 JS |
1912 | * @vport: pointer to a host virtual N_Port data structure. |
1913 | * | |
1914 | * This routine performs Registration State Change Notification (RSCN) | |
1915 | * discovery for a @vport. If the @vport's node port recovery count is not | |
1916 | * zero, it will invoke the lpfc_els_disc_plogi() to perform PLOGI for all | |
1917 | * the nodes that need recovery. If none of the PLOGI were needed through | |
1918 | * the lpfc_els_disc_plogi() routine, the lpfc_end_rscn() routine shall be | |
1919 | * invoked to check and handle possible more RSCN came in during the period | |
1920 | * of processing the current ones. | |
1921 | **/ | |
1922 | static void | |
1923 | lpfc_rscn_disc(struct lpfc_vport *vport) | |
1924 | { | |
1925 | lpfc_can_disctmo(vport); | |
1926 | ||
1927 | /* RSCN discovery */ | |
1928 | /* go thru NPR nodes and issue ELS PLOGIs */ | |
1929 | if (vport->fc_npr_cnt) | |
1930 | if (lpfc_els_disc_plogi(vport)) | |
1931 | return; | |
1932 | ||
1933 | lpfc_end_rscn(vport); | |
1934 | } | |
1935 | ||
1936 | /** | |
3621a710 | 1937 | * lpfc_adisc_done - Complete the adisc phase of discovery |
90160e01 JS |
1938 | * @vport: pointer to lpfc_vport hba data structure that finished all ADISCs. |
1939 | * | |
1940 | * This function is called when the final ADISC is completed during discovery. | |
1941 | * This function handles clearing link attention or issuing reg_vpi depending | |
1942 | * on whether npiv is enabled. This function also kicks off the PLOGI phase of | |
1943 | * discovery. | |
1944 | * This function is called with no locks held. | |
1945 | **/ | |
1946 | static void | |
1947 | lpfc_adisc_done(struct lpfc_vport *vport) | |
1948 | { | |
1949 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
1950 | struct lpfc_hba *phba = vport->phba; | |
1951 | ||
1952 | /* | |
1953 | * For NPIV, cmpl_reg_vpi will set port_state to READY, | |
1954 | * and continue discovery. | |
1955 | */ | |
1956 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && | |
6fb120a7 JS |
1957 | !(vport->fc_flag & FC_RSCN_MODE) && |
1958 | (phba->sli_rev < LPFC_SLI_REV4)) { | |
90160e01 JS |
1959 | lpfc_issue_reg_vpi(phba, vport); |
1960 | return; | |
1961 | } | |
1962 | /* | |
1963 | * For SLI2, we need to set port_state to READY | |
1964 | * and continue discovery. | |
1965 | */ | |
1966 | if (vport->port_state < LPFC_VPORT_READY) { | |
1967 | /* If we get here, there is nothing to ADISC */ | |
1968 | if (vport->port_type == LPFC_PHYSICAL_PORT) | |
1969 | lpfc_issue_clear_la(phba, vport); | |
1970 | if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) { | |
1971 | vport->num_disc_nodes = 0; | |
1972 | /* go thru NPR list, issue ELS PLOGIs */ | |
1973 | if (vport->fc_npr_cnt) | |
1974 | lpfc_els_disc_plogi(vport); | |
1975 | if (!vport->num_disc_nodes) { | |
1976 | spin_lock_irq(shost->host_lock); | |
1977 | vport->fc_flag &= ~FC_NDISC_ACTIVE; | |
1978 | spin_unlock_irq(shost->host_lock); | |
1979 | lpfc_can_disctmo(vport); | |
1980 | lpfc_end_rscn(vport); | |
1981 | } | |
1982 | } | |
1983 | vport->port_state = LPFC_VPORT_READY; | |
1984 | } else | |
1985 | lpfc_rscn_disc(vport); | |
1986 | } | |
1987 | ||
e59058c4 | 1988 | /** |
3621a710 | 1989 | * lpfc_more_adisc - Issue more adisc as needed |
e59058c4 JS |
1990 | * @vport: pointer to a host virtual N_Port data structure. |
1991 | * | |
1992 | * This routine determines whether there are more ndlps on a @vport | |
1993 | * node list need to have Address Discover (ADISC) issued. If so, it will | |
1994 | * invoke the lpfc_els_disc_adisc() routine to issue ADISC on the @vport's | |
1995 | * remaining nodes which need to have ADISC sent. | |
1996 | **/ | |
0ff10d46 | 1997 | void |
2e0fef85 | 1998 | lpfc_more_adisc(struct lpfc_vport *vport) |
dea3101e | 1999 | { |
2000 | int sentadisc; | |
2001 | ||
2e0fef85 JS |
2002 | if (vport->num_disc_nodes) |
2003 | vport->num_disc_nodes--; | |
dea3101e | 2004 | /* Continue discovery with <num_disc_nodes> ADISCs to go */ |
e8b62011 JS |
2005 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
2006 | "0210 Continue discovery with %d ADISCs to go " | |
2007 | "Data: x%x x%x x%x\n", | |
2008 | vport->num_disc_nodes, vport->fc_adisc_cnt, | |
2009 | vport->fc_flag, vport->port_state); | |
dea3101e | 2010 | /* Check to see if there are more ADISCs to be sent */ |
2e0fef85 JS |
2011 | if (vport->fc_flag & FC_NLP_MORE) { |
2012 | lpfc_set_disctmo(vport); | |
2013 | /* go thru NPR nodes and issue any remaining ELS ADISCs */ | |
2014 | sentadisc = lpfc_els_disc_adisc(vport); | |
dea3101e | 2015 | } |
90160e01 JS |
2016 | if (!vport->num_disc_nodes) |
2017 | lpfc_adisc_done(vport); | |
dea3101e | 2018 | return; |
2019 | } | |
2020 | ||
e59058c4 | 2021 | /** |
3621a710 | 2022 | * lpfc_cmpl_els_adisc - Completion callback function for adisc |
e59058c4 JS |
2023 | * @phba: pointer to lpfc hba data structure. |
2024 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
2025 | * @rspiocb: pointer to lpfc response iocb data structure. | |
2026 | * | |
2027 | * This routine is the completion function for issuing the Address Discover | |
2028 | * (ADISC) command. It first checks to see whether link went down during | |
2029 | * the discovery process. If so, the node will be marked as node port | |
2030 | * recovery for issuing discover IOCB by the link attention handler and | |
2031 | * exit. Otherwise, the response status is checked. If error was reported | |
2032 | * in the response status, the ADISC command shall be retried by invoking | |
2033 | * the lpfc_els_retry() routine. Otherwise, if no error was reported in | |
2034 | * the response status, the state machine is invoked to set transition | |
2035 | * with respect to NLP_EVT_CMPL_ADISC event. | |
2036 | **/ | |
dea3101e | 2037 | static void |
2e0fef85 JS |
2038 | lpfc_cmpl_els_adisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
2039 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 2040 | { |
2e0fef85 JS |
2041 | struct lpfc_vport *vport = cmdiocb->vport; |
2042 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e | 2043 | IOCB_t *irsp; |
dea3101e | 2044 | struct lpfc_nodelist *ndlp; |
2e0fef85 | 2045 | int disc; |
dea3101e | 2046 | |
2047 | /* we pass cmdiocb to state machine which needs rspiocb as well */ | |
2048 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
2049 | ||
2050 | irsp = &(rspiocb->iocb); | |
2051 | ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
dea3101e | 2052 | |
858c9f6c JS |
2053 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2054 | "ADISC cmpl: status:x%x/x%x did:x%x", | |
2055 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
2056 | ndlp->nlp_DID); | |
2057 | ||
dea3101e | 2058 | /* Since ndlp can be freed in the disc state machine, note if this node |
2059 | * is being used during discovery. | |
2060 | */ | |
2e0fef85 | 2061 | spin_lock_irq(shost->host_lock); |
dea3101e | 2062 | disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC); |
c9f8735b | 2063 | ndlp->nlp_flag &= ~(NLP_ADISC_SND | NLP_NPR_2B_DISC); |
2e0fef85 | 2064 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2065 | /* ADISC completes to NPort <nlp_DID> */ |
e8b62011 JS |
2066 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
2067 | "0104 ADISC completes to NPort x%x " | |
2068 | "Data: x%x x%x x%x x%x x%x\n", | |
2069 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
2070 | irsp->ulpTimeout, disc, vport->num_disc_nodes); | |
dea3101e | 2071 | /* Check to see if link went down during discovery */ |
2e0fef85 JS |
2072 | if (lpfc_els_chk_latt(vport)) { |
2073 | spin_lock_irq(shost->host_lock); | |
dea3101e | 2074 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 | 2075 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2076 | goto out; |
2077 | } | |
2078 | ||
2079 | if (irsp->ulpStatus) { | |
2080 | /* Check for retry */ | |
2081 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { | |
2082 | /* ELS command is being retried */ | |
2083 | if (disc) { | |
2e0fef85 | 2084 | spin_lock_irq(shost->host_lock); |
dea3101e | 2085 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 JS |
2086 | spin_unlock_irq(shost->host_lock); |
2087 | lpfc_set_disctmo(vport); | |
dea3101e | 2088 | } |
2089 | goto out; | |
2090 | } | |
2091 | /* ADISC failed */ | |
e40a02c1 JS |
2092 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
2093 | "2755 ADISC failure DID:%06X Status:x%x/x%x\n", | |
2094 | ndlp->nlp_DID, irsp->ulpStatus, | |
2095 | irsp->un.ulpWord[4]); | |
dea3101e | 2096 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ |
e47c9093 | 2097 | if (!lpfc_error_lost_link(irsp)) |
2e0fef85 | 2098 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
858c9f6c | 2099 | NLP_EVT_CMPL_ADISC); |
e47c9093 | 2100 | } else |
dea3101e | 2101 | /* Good status, call state machine */ |
2e0fef85 | 2102 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
dea3101e | 2103 | NLP_EVT_CMPL_ADISC); |
dea3101e | 2104 | |
90160e01 JS |
2105 | /* Check to see if there are more ADISCs to be sent */ |
2106 | if (disc && vport->num_disc_nodes) | |
2e0fef85 | 2107 | lpfc_more_adisc(vport); |
dea3101e | 2108 | out: |
2109 | lpfc_els_free_iocb(phba, cmdiocb); | |
2110 | return; | |
2111 | } | |
2112 | ||
e59058c4 | 2113 | /** |
3621a710 | 2114 | * lpfc_issue_els_adisc - Issue an address discover iocb to an node on a vport |
e59058c4 JS |
2115 | * @vport: pointer to a virtual N_Port data structure. |
2116 | * @ndlp: pointer to a node-list data structure. | |
2117 | * @retry: number of retries to the command IOCB. | |
2118 | * | |
2119 | * This routine issues an Address Discover (ADISC) for an @ndlp on a | |
2120 | * @vport. It prepares the payload of the ADISC ELS command, updates the | |
2121 | * and states of the ndlp, and invokes the lpfc_sli_issue_iocb() routine | |
2122 | * to issue the ADISC ELS command. | |
2123 | * | |
2124 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
2125 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
2126 | * will be stored into the context1 field of the IOCB for the completion | |
2127 | * callback function to the ADISC ELS command. | |
2128 | * | |
2129 | * Return code | |
2130 | * 0 - successfully issued adisc | |
2131 | * 1 - failed to issue adisc | |
2132 | **/ | |
dea3101e | 2133 | int |
2e0fef85 | 2134 | lpfc_issue_els_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
dea3101e | 2135 | uint8_t retry) |
2136 | { | |
2e0fef85 JS |
2137 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
2138 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 2139 | ADISC *ap; |
2140 | IOCB_t *icmd; | |
2141 | struct lpfc_iocbq *elsiocb; | |
dea3101e | 2142 | uint8_t *pcmd; |
2143 | uint16_t cmdsize; | |
2144 | ||
92d7f7b0 | 2145 | cmdsize = (sizeof(uint32_t) + sizeof(ADISC)); |
2e0fef85 JS |
2146 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
2147 | ndlp->nlp_DID, ELS_CMD_ADISC); | |
488d1469 | 2148 | if (!elsiocb) |
c9f8735b | 2149 | return 1; |
dea3101e | 2150 | |
2151 | icmd = &elsiocb->iocb; | |
2152 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
2153 | ||
2154 | /* For ADISC request, remainder of payload is service parameters */ | |
2155 | *((uint32_t *) (pcmd)) = ELS_CMD_ADISC; | |
92d7f7b0 | 2156 | pcmd += sizeof(uint32_t); |
dea3101e | 2157 | |
2158 | /* Fill in ADISC payload */ | |
2159 | ap = (ADISC *) pcmd; | |
2160 | ap->hardAL_PA = phba->fc_pref_ALPA; | |
92d7f7b0 JS |
2161 | memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name)); |
2162 | memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
2e0fef85 | 2163 | ap->DID = be32_to_cpu(vport->fc_myDID); |
dea3101e | 2164 | |
858c9f6c JS |
2165 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2166 | "Issue ADISC: did:x%x", | |
2167 | ndlp->nlp_DID, 0, 0); | |
2168 | ||
dea3101e | 2169 | phba->fc_stat.elsXmitADISC++; |
2170 | elsiocb->iocb_cmpl = lpfc_cmpl_els_adisc; | |
2e0fef85 | 2171 | spin_lock_irq(shost->host_lock); |
dea3101e | 2172 | ndlp->nlp_flag |= NLP_ADISC_SND; |
2e0fef85 | 2173 | spin_unlock_irq(shost->host_lock); |
3772a991 JS |
2174 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
2175 | IOCB_ERROR) { | |
2e0fef85 | 2176 | spin_lock_irq(shost->host_lock); |
dea3101e | 2177 | ndlp->nlp_flag &= ~NLP_ADISC_SND; |
2e0fef85 | 2178 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2179 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 2180 | return 1; |
dea3101e | 2181 | } |
c9f8735b | 2182 | return 0; |
dea3101e | 2183 | } |
2184 | ||
e59058c4 | 2185 | /** |
3621a710 | 2186 | * lpfc_cmpl_els_logo - Completion callback function for logo |
e59058c4 JS |
2187 | * @phba: pointer to lpfc hba data structure. |
2188 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
2189 | * @rspiocb: pointer to lpfc response iocb data structure. | |
2190 | * | |
2191 | * This routine is the completion function for issuing the ELS Logout (LOGO) | |
2192 | * command. If no error status was reported from the LOGO response, the | |
2193 | * state machine of the associated ndlp shall be invoked for transition with | |
2194 | * respect to NLP_EVT_CMPL_LOGO event. Otherwise, if error status was reported, | |
2195 | * the lpfc_els_retry() routine will be invoked to retry the LOGO command. | |
2196 | **/ | |
dea3101e | 2197 | static void |
2e0fef85 JS |
2198 | lpfc_cmpl_els_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
2199 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 2200 | { |
2e0fef85 JS |
2201 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; |
2202 | struct lpfc_vport *vport = ndlp->vport; | |
2203 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e | 2204 | IOCB_t *irsp; |
2205 | struct lpfc_sli *psli; | |
dea3101e | 2206 | |
2207 | psli = &phba->sli; | |
2208 | /* we pass cmdiocb to state machine which needs rspiocb as well */ | |
2209 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
2210 | ||
2211 | irsp = &(rspiocb->iocb); | |
2e0fef85 | 2212 | spin_lock_irq(shost->host_lock); |
dea3101e | 2213 | ndlp->nlp_flag &= ~NLP_LOGO_SND; |
2e0fef85 | 2214 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2215 | |
858c9f6c JS |
2216 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2217 | "LOGO cmpl: status:x%x/x%x did:x%x", | |
2218 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
2219 | ndlp->nlp_DID); | |
dea3101e | 2220 | /* LOGO completes to NPort <nlp_DID> */ |
e8b62011 JS |
2221 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
2222 | "0105 LOGO completes to NPort x%x " | |
2223 | "Data: x%x x%x x%x x%x\n", | |
2224 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
2225 | irsp->ulpTimeout, vport->num_disc_nodes); | |
dea3101e | 2226 | /* Check to see if link went down during discovery */ |
2e0fef85 | 2227 | if (lpfc_els_chk_latt(vport)) |
dea3101e | 2228 | goto out; |
2229 | ||
92d7f7b0 JS |
2230 | if (ndlp->nlp_flag & NLP_TARGET_REMOVE) { |
2231 | /* NLP_EVT_DEVICE_RM should unregister the RPI | |
2232 | * which should abort all outstanding IOs. | |
2233 | */ | |
2234 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, | |
2235 | NLP_EVT_DEVICE_RM); | |
2236 | goto out; | |
2237 | } | |
2238 | ||
dea3101e | 2239 | if (irsp->ulpStatus) { |
2240 | /* Check for retry */ | |
2e0fef85 | 2241 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) |
dea3101e | 2242 | /* ELS command is being retried */ |
2243 | goto out; | |
dea3101e | 2244 | /* LOGO failed */ |
e40a02c1 JS |
2245 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
2246 | "2756 LOGO failure DID:%06X Status:x%x/x%x\n", | |
2247 | ndlp->nlp_DID, irsp->ulpStatus, | |
2248 | irsp->un.ulpWord[4]); | |
dea3101e | 2249 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ |
858c9f6c | 2250 | if (lpfc_error_lost_link(irsp)) |
dea3101e | 2251 | goto out; |
858c9f6c | 2252 | else |
2e0fef85 | 2253 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 2254 | NLP_EVT_CMPL_LOGO); |
e47c9093 | 2255 | } else |
5024ab17 JW |
2256 | /* Good status, call state machine. |
2257 | * This will unregister the rpi if needed. | |
2258 | */ | |
2e0fef85 | 2259 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 2260 | NLP_EVT_CMPL_LOGO); |
dea3101e | 2261 | out: |
2262 | lpfc_els_free_iocb(phba, cmdiocb); | |
2263 | return; | |
2264 | } | |
2265 | ||
e59058c4 | 2266 | /** |
3621a710 | 2267 | * lpfc_issue_els_logo - Issue a logo to an node on a vport |
e59058c4 JS |
2268 | * @vport: pointer to a virtual N_Port data structure. |
2269 | * @ndlp: pointer to a node-list data structure. | |
2270 | * @retry: number of retries to the command IOCB. | |
2271 | * | |
2272 | * This routine constructs and issues an ELS Logout (LOGO) iocb command | |
2273 | * to a remote node, referred by an @ndlp on a @vport. It constructs the | |
2274 | * payload of the IOCB, properly sets up the @ndlp state, and invokes the | |
2275 | * lpfc_sli_issue_iocb() routine to send out the LOGO ELS command. | |
2276 | * | |
2277 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
2278 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
2279 | * will be stored into the context1 field of the IOCB for the completion | |
2280 | * callback function to the LOGO ELS command. | |
2281 | * | |
2282 | * Return code | |
2283 | * 0 - successfully issued logo | |
2284 | * 1 - failed to issue logo | |
2285 | **/ | |
dea3101e | 2286 | int |
2e0fef85 | 2287 | lpfc_issue_els_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
dea3101e | 2288 | uint8_t retry) |
2289 | { | |
2e0fef85 JS |
2290 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
2291 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 2292 | IOCB_t *icmd; |
2293 | struct lpfc_iocbq *elsiocb; | |
dea3101e | 2294 | uint8_t *pcmd; |
2295 | uint16_t cmdsize; | |
92d7f7b0 | 2296 | int rc; |
dea3101e | 2297 | |
98c9ea5c JS |
2298 | spin_lock_irq(shost->host_lock); |
2299 | if (ndlp->nlp_flag & NLP_LOGO_SND) { | |
2300 | spin_unlock_irq(shost->host_lock); | |
2301 | return 0; | |
2302 | } | |
2303 | spin_unlock_irq(shost->host_lock); | |
2304 | ||
92d7f7b0 | 2305 | cmdsize = (2 * sizeof(uint32_t)) + sizeof(struct lpfc_name); |
2e0fef85 JS |
2306 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
2307 | ndlp->nlp_DID, ELS_CMD_LOGO); | |
488d1469 | 2308 | if (!elsiocb) |
c9f8735b | 2309 | return 1; |
dea3101e | 2310 | |
2311 | icmd = &elsiocb->iocb; | |
2312 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
2313 | *((uint32_t *) (pcmd)) = ELS_CMD_LOGO; | |
92d7f7b0 | 2314 | pcmd += sizeof(uint32_t); |
dea3101e | 2315 | |
2316 | /* Fill in LOGO payload */ | |
2e0fef85 | 2317 | *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID); |
92d7f7b0 JS |
2318 | pcmd += sizeof(uint32_t); |
2319 | memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name)); | |
dea3101e | 2320 | |
858c9f6c JS |
2321 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2322 | "Issue LOGO: did:x%x", | |
2323 | ndlp->nlp_DID, 0, 0); | |
2324 | ||
dea3101e | 2325 | phba->fc_stat.elsXmitLOGO++; |
2326 | elsiocb->iocb_cmpl = lpfc_cmpl_els_logo; | |
2e0fef85 | 2327 | spin_lock_irq(shost->host_lock); |
dea3101e | 2328 | ndlp->nlp_flag |= NLP_LOGO_SND; |
2e0fef85 | 2329 | spin_unlock_irq(shost->host_lock); |
3772a991 | 2330 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
92d7f7b0 JS |
2331 | |
2332 | if (rc == IOCB_ERROR) { | |
2e0fef85 | 2333 | spin_lock_irq(shost->host_lock); |
dea3101e | 2334 | ndlp->nlp_flag &= ~NLP_LOGO_SND; |
2e0fef85 | 2335 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2336 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 2337 | return 1; |
dea3101e | 2338 | } |
c9f8735b | 2339 | return 0; |
dea3101e | 2340 | } |
2341 | ||
e59058c4 | 2342 | /** |
3621a710 | 2343 | * lpfc_cmpl_els_cmd - Completion callback function for generic els command |
e59058c4 JS |
2344 | * @phba: pointer to lpfc hba data structure. |
2345 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
2346 | * @rspiocb: pointer to lpfc response iocb data structure. | |
2347 | * | |
2348 | * This routine is a generic completion callback function for ELS commands. | |
2349 | * Specifically, it is the callback function which does not need to perform | |
2350 | * any command specific operations. It is currently used by the ELS command | |
2351 | * issuing routines for the ELS State Change Request (SCR), | |
2352 | * lpfc_issue_els_scr(), and the ELS Fibre Channel Address Resolution | |
2353 | * Protocol Response (FARPR) routine, lpfc_issue_els_farpr(). Other than | |
2354 | * certain debug loggings, this callback function simply invokes the | |
2355 | * lpfc_els_chk_latt() routine to check whether link went down during the | |
2356 | * discovery process. | |
2357 | **/ | |
dea3101e | 2358 | static void |
2e0fef85 JS |
2359 | lpfc_cmpl_els_cmd(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
2360 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 2361 | { |
2e0fef85 | 2362 | struct lpfc_vport *vport = cmdiocb->vport; |
dea3101e | 2363 | IOCB_t *irsp; |
2364 | ||
2365 | irsp = &rspiocb->iocb; | |
2366 | ||
858c9f6c JS |
2367 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2368 | "ELS cmd cmpl: status:x%x/x%x did:x%x", | |
2369 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
2370 | irsp->un.elsreq64.remoteID); | |
dea3101e | 2371 | /* ELS cmd tag <ulpIoTag> completes */ |
e8b62011 JS |
2372 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
2373 | "0106 ELS cmd tag x%x completes Data: x%x x%x x%x\n", | |
2374 | irsp->ulpIoTag, irsp->ulpStatus, | |
2375 | irsp->un.ulpWord[4], irsp->ulpTimeout); | |
dea3101e | 2376 | /* Check to see if link went down during discovery */ |
2e0fef85 | 2377 | lpfc_els_chk_latt(vport); |
dea3101e | 2378 | lpfc_els_free_iocb(phba, cmdiocb); |
2379 | return; | |
2380 | } | |
2381 | ||
e59058c4 | 2382 | /** |
3621a710 | 2383 | * lpfc_issue_els_scr - Issue a scr to an node on a vport |
e59058c4 JS |
2384 | * @vport: pointer to a host virtual N_Port data structure. |
2385 | * @nportid: N_Port identifier to the remote node. | |
2386 | * @retry: number of retries to the command IOCB. | |
2387 | * | |
2388 | * This routine issues a State Change Request (SCR) to a fabric node | |
2389 | * on a @vport. The remote node @nportid is passed into the function. It | |
2390 | * first search the @vport node list to find the matching ndlp. If no such | |
2391 | * ndlp is found, a new ndlp shall be created for this (SCR) purpose. An | |
2392 | * IOCB is allocated, payload prepared, and the lpfc_sli_issue_iocb() | |
2393 | * routine is invoked to send the SCR IOCB. | |
2394 | * | |
2395 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
2396 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
2397 | * will be stored into the context1 field of the IOCB for the completion | |
2398 | * callback function to the SCR ELS command. | |
2399 | * | |
2400 | * Return code | |
2401 | * 0 - Successfully issued scr command | |
2402 | * 1 - Failed to issue scr command | |
2403 | **/ | |
dea3101e | 2404 | int |
2e0fef85 | 2405 | lpfc_issue_els_scr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry) |
dea3101e | 2406 | { |
2e0fef85 | 2407 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 2408 | IOCB_t *icmd; |
2409 | struct lpfc_iocbq *elsiocb; | |
dea3101e | 2410 | struct lpfc_sli *psli; |
2411 | uint8_t *pcmd; | |
2412 | uint16_t cmdsize; | |
2413 | struct lpfc_nodelist *ndlp; | |
2414 | ||
2415 | psli = &phba->sli; | |
92d7f7b0 | 2416 | cmdsize = (sizeof(uint32_t) + sizeof(SCR)); |
dea3101e | 2417 | |
e47c9093 JS |
2418 | ndlp = lpfc_findnode_did(vport, nportid); |
2419 | if (!ndlp) { | |
2420 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
2421 | if (!ndlp) | |
2422 | return 1; | |
2423 | lpfc_nlp_init(vport, ndlp, nportid); | |
2424 | lpfc_enqueue_node(vport, ndlp); | |
2425 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
2426 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
2427 | if (!ndlp) | |
2428 | return 1; | |
2429 | } | |
2e0fef85 JS |
2430 | |
2431 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, | |
2432 | ndlp->nlp_DID, ELS_CMD_SCR); | |
dea3101e | 2433 | |
488d1469 | 2434 | if (!elsiocb) { |
fa4066b6 JS |
2435 | /* This will trigger the release of the node just |
2436 | * allocated | |
2437 | */ | |
329f9bc7 | 2438 | lpfc_nlp_put(ndlp); |
c9f8735b | 2439 | return 1; |
dea3101e | 2440 | } |
2441 | ||
2442 | icmd = &elsiocb->iocb; | |
2443 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
2444 | ||
2445 | *((uint32_t *) (pcmd)) = ELS_CMD_SCR; | |
92d7f7b0 | 2446 | pcmd += sizeof(uint32_t); |
dea3101e | 2447 | |
2448 | /* For SCR, remainder of payload is SCR parameter page */ | |
92d7f7b0 | 2449 | memset(pcmd, 0, sizeof(SCR)); |
dea3101e | 2450 | ((SCR *) pcmd)->Function = SCR_FUNC_FULL; |
2451 | ||
858c9f6c JS |
2452 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2453 | "Issue SCR: did:x%x", | |
2454 | ndlp->nlp_DID, 0, 0); | |
2455 | ||
dea3101e | 2456 | phba->fc_stat.elsXmitSCR++; |
2457 | elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd; | |
3772a991 JS |
2458 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
2459 | IOCB_ERROR) { | |
fa4066b6 JS |
2460 | /* The additional lpfc_nlp_put will cause the following |
2461 | * lpfc_els_free_iocb routine to trigger the rlease of | |
2462 | * the node. | |
2463 | */ | |
329f9bc7 | 2464 | lpfc_nlp_put(ndlp); |
dea3101e | 2465 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 2466 | return 1; |
dea3101e | 2467 | } |
fa4066b6 JS |
2468 | /* This will cause the callback-function lpfc_cmpl_els_cmd to |
2469 | * trigger the release of node. | |
2470 | */ | |
329f9bc7 | 2471 | lpfc_nlp_put(ndlp); |
c9f8735b | 2472 | return 0; |
dea3101e | 2473 | } |
2474 | ||
e59058c4 | 2475 | /** |
3621a710 | 2476 | * lpfc_issue_els_farpr - Issue a farp to an node on a vport |
e59058c4 JS |
2477 | * @vport: pointer to a host virtual N_Port data structure. |
2478 | * @nportid: N_Port identifier to the remote node. | |
2479 | * @retry: number of retries to the command IOCB. | |
2480 | * | |
2481 | * This routine issues a Fibre Channel Address Resolution Response | |
2482 | * (FARPR) to a node on a vport. The remote node N_Port identifier (@nportid) | |
2483 | * is passed into the function. It first search the @vport node list to find | |
2484 | * the matching ndlp. If no such ndlp is found, a new ndlp shall be created | |
2485 | * for this (FARPR) purpose. An IOCB is allocated, payload prepared, and the | |
2486 | * lpfc_sli_issue_iocb() routine is invoked to send the FARPR ELS command. | |
2487 | * | |
2488 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
2489 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
2490 | * will be stored into the context1 field of the IOCB for the completion | |
2491 | * callback function to the PARPR ELS command. | |
2492 | * | |
2493 | * Return code | |
2494 | * 0 - Successfully issued farpr command | |
2495 | * 1 - Failed to issue farpr command | |
2496 | **/ | |
dea3101e | 2497 | static int |
2e0fef85 | 2498 | lpfc_issue_els_farpr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry) |
dea3101e | 2499 | { |
2e0fef85 | 2500 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 2501 | IOCB_t *icmd; |
2502 | struct lpfc_iocbq *elsiocb; | |
dea3101e | 2503 | struct lpfc_sli *psli; |
2504 | FARP *fp; | |
2505 | uint8_t *pcmd; | |
2506 | uint32_t *lp; | |
2507 | uint16_t cmdsize; | |
2508 | struct lpfc_nodelist *ondlp; | |
2509 | struct lpfc_nodelist *ndlp; | |
2510 | ||
2511 | psli = &phba->sli; | |
92d7f7b0 | 2512 | cmdsize = (sizeof(uint32_t) + sizeof(FARP)); |
dea3101e | 2513 | |
e47c9093 JS |
2514 | ndlp = lpfc_findnode_did(vport, nportid); |
2515 | if (!ndlp) { | |
2516 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
2517 | if (!ndlp) | |
2518 | return 1; | |
2519 | lpfc_nlp_init(vport, ndlp, nportid); | |
2520 | lpfc_enqueue_node(vport, ndlp); | |
2521 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
2522 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
2523 | if (!ndlp) | |
2524 | return 1; | |
2525 | } | |
2e0fef85 JS |
2526 | |
2527 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, | |
2528 | ndlp->nlp_DID, ELS_CMD_RNID); | |
488d1469 | 2529 | if (!elsiocb) { |
fa4066b6 JS |
2530 | /* This will trigger the release of the node just |
2531 | * allocated | |
2532 | */ | |
329f9bc7 | 2533 | lpfc_nlp_put(ndlp); |
c9f8735b | 2534 | return 1; |
dea3101e | 2535 | } |
2536 | ||
2537 | icmd = &elsiocb->iocb; | |
2538 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
2539 | ||
2540 | *((uint32_t *) (pcmd)) = ELS_CMD_FARPR; | |
92d7f7b0 | 2541 | pcmd += sizeof(uint32_t); |
dea3101e | 2542 | |
2543 | /* Fill in FARPR payload */ | |
2544 | fp = (FARP *) (pcmd); | |
92d7f7b0 | 2545 | memset(fp, 0, sizeof(FARP)); |
dea3101e | 2546 | lp = (uint32_t *) pcmd; |
2547 | *lp++ = be32_to_cpu(nportid); | |
2e0fef85 | 2548 | *lp++ = be32_to_cpu(vport->fc_myDID); |
dea3101e | 2549 | fp->Rflags = 0; |
2550 | fp->Mflags = (FARP_MATCH_PORT | FARP_MATCH_NODE); | |
2551 | ||
92d7f7b0 JS |
2552 | memcpy(&fp->RportName, &vport->fc_portname, sizeof(struct lpfc_name)); |
2553 | memcpy(&fp->RnodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
2e0fef85 | 2554 | ondlp = lpfc_findnode_did(vport, nportid); |
e47c9093 | 2555 | if (ondlp && NLP_CHK_NODE_ACT(ondlp)) { |
dea3101e | 2556 | memcpy(&fp->OportName, &ondlp->nlp_portname, |
92d7f7b0 | 2557 | sizeof(struct lpfc_name)); |
dea3101e | 2558 | memcpy(&fp->OnodeName, &ondlp->nlp_nodename, |
92d7f7b0 | 2559 | sizeof(struct lpfc_name)); |
dea3101e | 2560 | } |
2561 | ||
858c9f6c JS |
2562 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2563 | "Issue FARPR: did:x%x", | |
2564 | ndlp->nlp_DID, 0, 0); | |
2565 | ||
dea3101e | 2566 | phba->fc_stat.elsXmitFARPR++; |
2567 | elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd; | |
3772a991 JS |
2568 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
2569 | IOCB_ERROR) { | |
fa4066b6 JS |
2570 | /* The additional lpfc_nlp_put will cause the following |
2571 | * lpfc_els_free_iocb routine to trigger the release of | |
2572 | * the node. | |
2573 | */ | |
329f9bc7 | 2574 | lpfc_nlp_put(ndlp); |
dea3101e | 2575 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 2576 | return 1; |
dea3101e | 2577 | } |
fa4066b6 JS |
2578 | /* This will cause the callback-function lpfc_cmpl_els_cmd to |
2579 | * trigger the release of the node. | |
2580 | */ | |
329f9bc7 | 2581 | lpfc_nlp_put(ndlp); |
c9f8735b | 2582 | return 0; |
dea3101e | 2583 | } |
2584 | ||
e59058c4 | 2585 | /** |
3621a710 | 2586 | * lpfc_cancel_retry_delay_tmo - Cancel the timer with delayed iocb-cmd retry |
e59058c4 JS |
2587 | * @vport: pointer to a host virtual N_Port data structure. |
2588 | * @nlp: pointer to a node-list data structure. | |
2589 | * | |
2590 | * This routine cancels the timer with a delayed IOCB-command retry for | |
2591 | * a @vport's @ndlp. It stops the timer for the delayed function retrial and | |
2592 | * removes the ELS retry event if it presents. In addition, if the | |
2593 | * NLP_NPR_2B_DISC bit is set in the @nlp's nlp_flag bitmap, ADISC IOCB | |
2594 | * commands are sent for the @vport's nodes that require issuing discovery | |
2595 | * ADISC. | |
2596 | **/ | |
fdcebe28 | 2597 | void |
2e0fef85 | 2598 | lpfc_cancel_retry_delay_tmo(struct lpfc_vport *vport, struct lpfc_nodelist *nlp) |
fdcebe28 | 2599 | { |
2e0fef85 | 2600 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
e47c9093 | 2601 | struct lpfc_work_evt *evtp; |
2e0fef85 | 2602 | |
0d2b6b83 JS |
2603 | if (!(nlp->nlp_flag & NLP_DELAY_TMO)) |
2604 | return; | |
2e0fef85 | 2605 | spin_lock_irq(shost->host_lock); |
fdcebe28 | 2606 | nlp->nlp_flag &= ~NLP_DELAY_TMO; |
2e0fef85 | 2607 | spin_unlock_irq(shost->host_lock); |
fdcebe28 JS |
2608 | del_timer_sync(&nlp->nlp_delayfunc); |
2609 | nlp->nlp_last_elscmd = 0; | |
e47c9093 | 2610 | if (!list_empty(&nlp->els_retry_evt.evt_listp)) { |
fdcebe28 | 2611 | list_del_init(&nlp->els_retry_evt.evt_listp); |
e47c9093 JS |
2612 | /* Decrement nlp reference count held for the delayed retry */ |
2613 | evtp = &nlp->els_retry_evt; | |
2614 | lpfc_nlp_put((struct lpfc_nodelist *)evtp->evt_arg1); | |
2615 | } | |
fdcebe28 | 2616 | if (nlp->nlp_flag & NLP_NPR_2B_DISC) { |
2e0fef85 | 2617 | spin_lock_irq(shost->host_lock); |
fdcebe28 | 2618 | nlp->nlp_flag &= ~NLP_NPR_2B_DISC; |
2e0fef85 JS |
2619 | spin_unlock_irq(shost->host_lock); |
2620 | if (vport->num_disc_nodes) { | |
0d2b6b83 JS |
2621 | if (vport->port_state < LPFC_VPORT_READY) { |
2622 | /* Check if there are more ADISCs to be sent */ | |
2623 | lpfc_more_adisc(vport); | |
0d2b6b83 JS |
2624 | } else { |
2625 | /* Check if there are more PLOGIs to be sent */ | |
2626 | lpfc_more_plogi(vport); | |
90160e01 JS |
2627 | if (vport->num_disc_nodes == 0) { |
2628 | spin_lock_irq(shost->host_lock); | |
2629 | vport->fc_flag &= ~FC_NDISC_ACTIVE; | |
2630 | spin_unlock_irq(shost->host_lock); | |
2631 | lpfc_can_disctmo(vport); | |
2632 | lpfc_end_rscn(vport); | |
2633 | } | |
fdcebe28 JS |
2634 | } |
2635 | } | |
2636 | } | |
2637 | return; | |
2638 | } | |
2639 | ||
e59058c4 | 2640 | /** |
3621a710 | 2641 | * lpfc_els_retry_delay - Timer function with a ndlp delayed function timer |
e59058c4 JS |
2642 | * @ptr: holder for the pointer to the timer function associated data (ndlp). |
2643 | * | |
2644 | * This routine is invoked by the ndlp delayed-function timer to check | |
2645 | * whether there is any pending ELS retry event(s) with the node. If not, it | |
2646 | * simply returns. Otherwise, if there is at least one ELS delayed event, it | |
2647 | * adds the delayed events to the HBA work list and invokes the | |
2648 | * lpfc_worker_wake_up() routine to wake up worker thread to process the | |
2649 | * event. Note that lpfc_nlp_get() is called before posting the event to | |
2650 | * the work list to hold reference count of ndlp so that it guarantees the | |
2651 | * reference to ndlp will still be available when the worker thread gets | |
2652 | * to the event associated with the ndlp. | |
2653 | **/ | |
dea3101e | 2654 | void |
2655 | lpfc_els_retry_delay(unsigned long ptr) | |
2656 | { | |
2e0fef85 JS |
2657 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) ptr; |
2658 | struct lpfc_vport *vport = ndlp->vport; | |
2e0fef85 | 2659 | struct lpfc_hba *phba = vport->phba; |
92d7f7b0 | 2660 | unsigned long flags; |
2e0fef85 | 2661 | struct lpfc_work_evt *evtp = &ndlp->els_retry_evt; |
dea3101e | 2662 | |
92d7f7b0 | 2663 | spin_lock_irqsave(&phba->hbalock, flags); |
dea3101e | 2664 | if (!list_empty(&evtp->evt_listp)) { |
92d7f7b0 | 2665 | spin_unlock_irqrestore(&phba->hbalock, flags); |
dea3101e | 2666 | return; |
2667 | } | |
2668 | ||
fa4066b6 JS |
2669 | /* We need to hold the node by incrementing the reference |
2670 | * count until the queued work is done | |
2671 | */ | |
2672 | evtp->evt_arg1 = lpfc_nlp_get(ndlp); | |
5e9d9b82 JS |
2673 | if (evtp->evt_arg1) { |
2674 | evtp->evt = LPFC_EVT_ELS_RETRY; | |
2675 | list_add_tail(&evtp->evt_listp, &phba->work_list); | |
92d7f7b0 | 2676 | lpfc_worker_wake_up(phba); |
5e9d9b82 | 2677 | } |
92d7f7b0 | 2678 | spin_unlock_irqrestore(&phba->hbalock, flags); |
dea3101e | 2679 | return; |
2680 | } | |
2681 | ||
e59058c4 | 2682 | /** |
3621a710 | 2683 | * lpfc_els_retry_delay_handler - Work thread handler for ndlp delayed function |
e59058c4 JS |
2684 | * @ndlp: pointer to a node-list data structure. |
2685 | * | |
2686 | * This routine is the worker-thread handler for processing the @ndlp delayed | |
2687 | * event(s), posted by the lpfc_els_retry_delay() routine. It simply retrieves | |
2688 | * the last ELS command from the associated ndlp and invokes the proper ELS | |
2689 | * function according to the delayed ELS command to retry the command. | |
2690 | **/ | |
dea3101e | 2691 | void |
2692 | lpfc_els_retry_delay_handler(struct lpfc_nodelist *ndlp) | |
2693 | { | |
2e0fef85 JS |
2694 | struct lpfc_vport *vport = ndlp->vport; |
2695 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
2696 | uint32_t cmd, did, retry; | |
dea3101e | 2697 | |
2e0fef85 | 2698 | spin_lock_irq(shost->host_lock); |
5024ab17 JW |
2699 | did = ndlp->nlp_DID; |
2700 | cmd = ndlp->nlp_last_elscmd; | |
2701 | ndlp->nlp_last_elscmd = 0; | |
dea3101e | 2702 | |
2703 | if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { | |
2e0fef85 | 2704 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2705 | return; |
2706 | } | |
2707 | ||
2708 | ndlp->nlp_flag &= ~NLP_DELAY_TMO; | |
2e0fef85 | 2709 | spin_unlock_irq(shost->host_lock); |
1a169689 JS |
2710 | /* |
2711 | * If a discovery event readded nlp_delayfunc after timer | |
2712 | * firing and before processing the timer, cancel the | |
2713 | * nlp_delayfunc. | |
2714 | */ | |
2715 | del_timer_sync(&ndlp->nlp_delayfunc); | |
dea3101e | 2716 | retry = ndlp->nlp_retry; |
4d9ab994 | 2717 | ndlp->nlp_retry = 0; |
dea3101e | 2718 | |
2719 | switch (cmd) { | |
2720 | case ELS_CMD_FLOGI: | |
2e0fef85 | 2721 | lpfc_issue_els_flogi(vport, ndlp, retry); |
dea3101e | 2722 | break; |
2723 | case ELS_CMD_PLOGI: | |
2e0fef85 | 2724 | if (!lpfc_issue_els_plogi(vport, ndlp->nlp_DID, retry)) { |
5024ab17 | 2725 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 2726 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); |
6ad42535 | 2727 | } |
dea3101e | 2728 | break; |
2729 | case ELS_CMD_ADISC: | |
2e0fef85 | 2730 | if (!lpfc_issue_els_adisc(vport, ndlp, retry)) { |
5024ab17 | 2731 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 2732 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); |
6ad42535 | 2733 | } |
dea3101e | 2734 | break; |
2735 | case ELS_CMD_PRLI: | |
2e0fef85 | 2736 | if (!lpfc_issue_els_prli(vport, ndlp, retry)) { |
5024ab17 | 2737 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 2738 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); |
6ad42535 | 2739 | } |
dea3101e | 2740 | break; |
2741 | case ELS_CMD_LOGO: | |
2e0fef85 | 2742 | if (!lpfc_issue_els_logo(vport, ndlp, retry)) { |
5024ab17 | 2743 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 2744 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
6ad42535 | 2745 | } |
dea3101e | 2746 | break; |
92d7f7b0 JS |
2747 | case ELS_CMD_FDISC: |
2748 | lpfc_issue_els_fdisc(vport, ndlp, retry); | |
2749 | break; | |
dea3101e | 2750 | } |
2751 | return; | |
2752 | } | |
2753 | ||
e59058c4 | 2754 | /** |
3621a710 | 2755 | * lpfc_els_retry - Make retry decision on an els command iocb |
e59058c4 JS |
2756 | * @phba: pointer to lpfc hba data structure. |
2757 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
2758 | * @rspiocb: pointer to lpfc response iocb data structure. | |
2759 | * | |
2760 | * This routine makes a retry decision on an ELS command IOCB, which has | |
2761 | * failed. The following ELS IOCBs use this function for retrying the command | |
2762 | * when previously issued command responsed with error status: FLOGI, PLOGI, | |
2763 | * PRLI, ADISC, LOGO, and FDISC. Based on the ELS command type and the | |
2764 | * returned error status, it makes the decision whether a retry shall be | |
2765 | * issued for the command, and whether a retry shall be made immediately or | |
2766 | * delayed. In the former case, the corresponding ELS command issuing-function | |
2767 | * is called to retry the command. In the later case, the ELS command shall | |
2768 | * be posted to the ndlp delayed event and delayed function timer set to the | |
2769 | * ndlp for the delayed command issusing. | |
2770 | * | |
2771 | * Return code | |
2772 | * 0 - No retry of els command is made | |
2773 | * 1 - Immediate or delayed retry of els command is made | |
2774 | **/ | |
dea3101e | 2775 | static int |
2e0fef85 JS |
2776 | lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
2777 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 2778 | { |
2e0fef85 JS |
2779 | struct lpfc_vport *vport = cmdiocb->vport; |
2780 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
2781 | IOCB_t *irsp = &rspiocb->iocb; | |
2782 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
2783 | struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
dea3101e | 2784 | uint32_t *elscmd; |
2785 | struct ls_rjt stat; | |
2e0fef85 | 2786 | int retry = 0, maxretry = lpfc_max_els_tries, delay = 0; |
98c9ea5c | 2787 | int logerr = 0; |
2e0fef85 | 2788 | uint32_t cmd = 0; |
488d1469 | 2789 | uint32_t did; |
dea3101e | 2790 | |
488d1469 | 2791 | |
dea3101e | 2792 | /* Note: context2 may be 0 for internal driver abort |
2793 | * of delays ELS command. | |
2794 | */ | |
2795 | ||
2796 | if (pcmd && pcmd->virt) { | |
2797 | elscmd = (uint32_t *) (pcmd->virt); | |
2798 | cmd = *elscmd++; | |
2799 | } | |
2800 | ||
e47c9093 | 2801 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) |
488d1469 JS |
2802 | did = ndlp->nlp_DID; |
2803 | else { | |
2804 | /* We should only hit this case for retrying PLOGI */ | |
2805 | did = irsp->un.elsreq64.remoteID; | |
2e0fef85 | 2806 | ndlp = lpfc_findnode_did(vport, did); |
e47c9093 JS |
2807 | if ((!ndlp || !NLP_CHK_NODE_ACT(ndlp)) |
2808 | && (cmd != ELS_CMD_PLOGI)) | |
488d1469 JS |
2809 | return 1; |
2810 | } | |
2811 | ||
858c9f6c JS |
2812 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2813 | "Retry ELS: wd7:x%x wd4:x%x did:x%x", | |
2814 | *(((uint32_t *) irsp) + 7), irsp->un.ulpWord[4], ndlp->nlp_DID); | |
2815 | ||
dea3101e | 2816 | switch (irsp->ulpStatus) { |
2817 | case IOSTAT_FCP_RSP_ERROR: | |
2818 | case IOSTAT_REMOTE_STOP: | |
2819 | break; | |
2820 | ||
2821 | case IOSTAT_LOCAL_REJECT: | |
2822 | switch ((irsp->un.ulpWord[4] & 0xff)) { | |
2823 | case IOERR_LOOP_OPEN_FAILURE: | |
eaf15d5b JS |
2824 | if (cmd == ELS_CMD_FLOGI) { |
2825 | if (PCI_DEVICE_ID_HORNET == | |
2826 | phba->pcidev->device) { | |
76a95d75 | 2827 | phba->fc_topology = LPFC_TOPOLOGY_LOOP; |
eaf15d5b JS |
2828 | phba->pport->fc_myDID = 0; |
2829 | phba->alpa_map[0] = 0; | |
2830 | phba->alpa_map[1] = 0; | |
2831 | } | |
2832 | } | |
2e0fef85 | 2833 | if (cmd == ELS_CMD_PLOGI && cmdiocb->retry == 0) |
92d7f7b0 | 2834 | delay = 1000; |
dea3101e | 2835 | retry = 1; |
2836 | break; | |
2837 | ||
92d7f7b0 | 2838 | case IOERR_ILLEGAL_COMMAND: |
7f5f3d0d JS |
2839 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
2840 | "0124 Retry illegal cmd x%x " | |
2841 | "retry:x%x delay:x%x\n", | |
2842 | cmd, cmdiocb->retry, delay); | |
2843 | retry = 1; | |
2844 | /* All command's retry policy */ | |
2845 | maxretry = 8; | |
2846 | if (cmdiocb->retry > 2) | |
2847 | delay = 1000; | |
92d7f7b0 JS |
2848 | break; |
2849 | ||
dea3101e | 2850 | case IOERR_NO_RESOURCES: |
98c9ea5c | 2851 | logerr = 1; /* HBA out of resources */ |
858c9f6c JS |
2852 | retry = 1; |
2853 | if (cmdiocb->retry > 100) | |
2854 | delay = 100; | |
2855 | maxretry = 250; | |
2856 | break; | |
2857 | ||
2858 | case IOERR_ILLEGAL_FRAME: | |
92d7f7b0 | 2859 | delay = 100; |
dea3101e | 2860 | retry = 1; |
2861 | break; | |
2862 | ||
858c9f6c | 2863 | case IOERR_SEQUENCE_TIMEOUT: |
dea3101e | 2864 | case IOERR_INVALID_RPI: |
2865 | retry = 1; | |
2866 | break; | |
2867 | } | |
2868 | break; | |
2869 | ||
2870 | case IOSTAT_NPORT_RJT: | |
2871 | case IOSTAT_FABRIC_RJT: | |
2872 | if (irsp->un.ulpWord[4] & RJT_UNAVAIL_TEMP) { | |
2873 | retry = 1; | |
2874 | break; | |
2875 | } | |
2876 | break; | |
2877 | ||
2878 | case IOSTAT_NPORT_BSY: | |
2879 | case IOSTAT_FABRIC_BSY: | |
98c9ea5c | 2880 | logerr = 1; /* Fabric / Remote NPort out of resources */ |
dea3101e | 2881 | retry = 1; |
2882 | break; | |
2883 | ||
2884 | case IOSTAT_LS_RJT: | |
2885 | stat.un.lsRjtError = be32_to_cpu(irsp->un.ulpWord[4]); | |
2886 | /* Added for Vendor specifc support | |
2887 | * Just keep retrying for these Rsn / Exp codes | |
2888 | */ | |
2889 | switch (stat.un.b.lsRjtRsnCode) { | |
2890 | case LSRJT_UNABLE_TPC: | |
2891 | if (stat.un.b.lsRjtRsnCodeExp == | |
2892 | LSEXP_CMD_IN_PROGRESS) { | |
2893 | if (cmd == ELS_CMD_PLOGI) { | |
92d7f7b0 | 2894 | delay = 1000; |
dea3101e | 2895 | maxretry = 48; |
2896 | } | |
2897 | retry = 1; | |
2898 | break; | |
2899 | } | |
ffc95493 JS |
2900 | if (stat.un.b.lsRjtRsnCodeExp == |
2901 | LSEXP_CANT_GIVE_DATA) { | |
2902 | if (cmd == ELS_CMD_PLOGI) { | |
2903 | delay = 1000; | |
2904 | maxretry = 48; | |
2905 | } | |
2906 | retry = 1; | |
2907 | break; | |
2908 | } | |
dea3101e | 2909 | if (cmd == ELS_CMD_PLOGI) { |
92d7f7b0 | 2910 | delay = 1000; |
dea3101e | 2911 | maxretry = lpfc_max_els_tries + 1; |
2912 | retry = 1; | |
2913 | break; | |
2914 | } | |
92d7f7b0 JS |
2915 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && |
2916 | (cmd == ELS_CMD_FDISC) && | |
2917 | (stat.un.b.lsRjtRsnCodeExp == LSEXP_OUT_OF_RESOURCE)){ | |
e8b62011 JS |
2918 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
2919 | "0125 FDISC Failed (x%x). " | |
2920 | "Fabric out of resources\n", | |
2921 | stat.un.lsRjtError); | |
92d7f7b0 JS |
2922 | lpfc_vport_set_state(vport, |
2923 | FC_VPORT_NO_FABRIC_RSCS); | |
2924 | } | |
dea3101e | 2925 | break; |
2926 | ||
2927 | case LSRJT_LOGICAL_BSY: | |
858c9f6c JS |
2928 | if ((cmd == ELS_CMD_PLOGI) || |
2929 | (cmd == ELS_CMD_PRLI)) { | |
92d7f7b0 | 2930 | delay = 1000; |
dea3101e | 2931 | maxretry = 48; |
92d7f7b0 | 2932 | } else if (cmd == ELS_CMD_FDISC) { |
51ef4c26 JS |
2933 | /* FDISC retry policy */ |
2934 | maxretry = 48; | |
2935 | if (cmdiocb->retry >= 32) | |
2936 | delay = 1000; | |
dea3101e | 2937 | } |
2938 | retry = 1; | |
2939 | break; | |
92d7f7b0 JS |
2940 | |
2941 | case LSRJT_LOGICAL_ERR: | |
7f5f3d0d JS |
2942 | /* There are some cases where switches return this |
2943 | * error when they are not ready and should be returning | |
2944 | * Logical Busy. We should delay every time. | |
2945 | */ | |
2946 | if (cmd == ELS_CMD_FDISC && | |
2947 | stat.un.b.lsRjtRsnCodeExp == LSEXP_PORT_LOGIN_REQ) { | |
2948 | maxretry = 3; | |
2949 | delay = 1000; | |
2950 | retry = 1; | |
2951 | break; | |
2952 | } | |
92d7f7b0 JS |
2953 | case LSRJT_PROTOCOL_ERR: |
2954 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && | |
2955 | (cmd == ELS_CMD_FDISC) && | |
2956 | ((stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_PNAME) || | |
2957 | (stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_NPORT_ID)) | |
2958 | ) { | |
e8b62011 | 2959 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
d7c255b2 | 2960 | "0122 FDISC Failed (x%x). " |
e8b62011 JS |
2961 | "Fabric Detected Bad WWN\n", |
2962 | stat.un.lsRjtError); | |
92d7f7b0 JS |
2963 | lpfc_vport_set_state(vport, |
2964 | FC_VPORT_FABRIC_REJ_WWN); | |
2965 | } | |
2966 | break; | |
dea3101e | 2967 | } |
2968 | break; | |
2969 | ||
2970 | case IOSTAT_INTERMED_RSP: | |
2971 | case IOSTAT_BA_RJT: | |
2972 | break; | |
2973 | ||
2974 | default: | |
2975 | break; | |
2976 | } | |
2977 | ||
488d1469 | 2978 | if (did == FDMI_DID) |
dea3101e | 2979 | retry = 1; |
dea3101e | 2980 | |
695a814e | 2981 | if (((cmd == ELS_CMD_FLOGI) || (cmd == ELS_CMD_FDISC)) && |
76a95d75 | 2982 | (phba->fc_topology != LPFC_TOPOLOGY_LOOP) && |
1b32f6aa | 2983 | !lpfc_error_lost_link(irsp)) { |
98c9ea5c JS |
2984 | /* FLOGI retry policy */ |
2985 | retry = 1; | |
6669f9bb JS |
2986 | /* retry forever */ |
2987 | maxretry = 0; | |
2988 | if (cmdiocb->retry >= 100) | |
2989 | delay = 5000; | |
2990 | else if (cmdiocb->retry >= 32) | |
98c9ea5c JS |
2991 | delay = 1000; |
2992 | } | |
2993 | ||
6669f9bb JS |
2994 | cmdiocb->retry++; |
2995 | if (maxretry && (cmdiocb->retry >= maxretry)) { | |
dea3101e | 2996 | phba->fc_stat.elsRetryExceeded++; |
2997 | retry = 0; | |
2998 | } | |
2999 | ||
ed957684 JS |
3000 | if ((vport->load_flag & FC_UNLOADING) != 0) |
3001 | retry = 0; | |
3002 | ||
dea3101e | 3003 | if (retry) { |
38b92ef8 JS |
3004 | if ((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_FDISC)) { |
3005 | /* Stop retrying PLOGI and FDISC if in FCF discovery */ | |
3006 | if (phba->fcf.fcf_flag & FCF_DISCOVERY) { | |
3007 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
3008 | "2849 Stop retry ELS command " | |
3009 | "x%x to remote NPORT x%x, " | |
3010 | "Data: x%x x%x\n", cmd, did, | |
3011 | cmdiocb->retry, delay); | |
3012 | return 0; | |
3013 | } | |
3014 | } | |
dea3101e | 3015 | |
3016 | /* Retry ELS command <elsCmd> to remote NPORT <did> */ | |
e8b62011 JS |
3017 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3018 | "0107 Retry ELS command x%x to remote " | |
3019 | "NPORT x%x Data: x%x x%x\n", | |
3020 | cmd, did, cmdiocb->retry, delay); | |
dea3101e | 3021 | |
858c9f6c JS |
3022 | if (((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_ADISC)) && |
3023 | ((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) || | |
3024 | ((irsp->un.ulpWord[4] & 0xff) != IOERR_NO_RESOURCES))) { | |
3025 | /* Don't reset timer for no resources */ | |
3026 | ||
dea3101e | 3027 | /* If discovery / RSCN timer is running, reset it */ |
2e0fef85 | 3028 | if (timer_pending(&vport->fc_disctmo) || |
92d7f7b0 | 3029 | (vport->fc_flag & FC_RSCN_MODE)) |
2e0fef85 | 3030 | lpfc_set_disctmo(vport); |
dea3101e | 3031 | } |
3032 | ||
3033 | phba->fc_stat.elsXmitRetry++; | |
58da1ffb | 3034 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && delay) { |
dea3101e | 3035 | phba->fc_stat.elsDelayRetry++; |
3036 | ndlp->nlp_retry = cmdiocb->retry; | |
3037 | ||
92d7f7b0 JS |
3038 | /* delay is specified in milliseconds */ |
3039 | mod_timer(&ndlp->nlp_delayfunc, | |
3040 | jiffies + msecs_to_jiffies(delay)); | |
2e0fef85 | 3041 | spin_lock_irq(shost->host_lock); |
dea3101e | 3042 | ndlp->nlp_flag |= NLP_DELAY_TMO; |
2e0fef85 | 3043 | spin_unlock_irq(shost->host_lock); |
dea3101e | 3044 | |
5024ab17 | 3045 | ndlp->nlp_prev_state = ndlp->nlp_state; |
858c9f6c JS |
3046 | if (cmd == ELS_CMD_PRLI) |
3047 | lpfc_nlp_set_state(vport, ndlp, | |
3048 | NLP_STE_REG_LOGIN_ISSUE); | |
3049 | else | |
3050 | lpfc_nlp_set_state(vport, ndlp, | |
3051 | NLP_STE_NPR_NODE); | |
dea3101e | 3052 | ndlp->nlp_last_elscmd = cmd; |
3053 | ||
c9f8735b | 3054 | return 1; |
dea3101e | 3055 | } |
3056 | switch (cmd) { | |
3057 | case ELS_CMD_FLOGI: | |
2e0fef85 | 3058 | lpfc_issue_els_flogi(vport, ndlp, cmdiocb->retry); |
c9f8735b | 3059 | return 1; |
92d7f7b0 JS |
3060 | case ELS_CMD_FDISC: |
3061 | lpfc_issue_els_fdisc(vport, ndlp, cmdiocb->retry); | |
3062 | return 1; | |
dea3101e | 3063 | case ELS_CMD_PLOGI: |
58da1ffb | 3064 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) { |
488d1469 | 3065 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 3066 | lpfc_nlp_set_state(vport, ndlp, |
de0c5b32 | 3067 | NLP_STE_PLOGI_ISSUE); |
488d1469 | 3068 | } |
2e0fef85 | 3069 | lpfc_issue_els_plogi(vport, did, cmdiocb->retry); |
c9f8735b | 3070 | return 1; |
dea3101e | 3071 | case ELS_CMD_ADISC: |
5024ab17 | 3072 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 JS |
3073 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); |
3074 | lpfc_issue_els_adisc(vport, ndlp, cmdiocb->retry); | |
c9f8735b | 3075 | return 1; |
dea3101e | 3076 | case ELS_CMD_PRLI: |
5024ab17 | 3077 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 JS |
3078 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); |
3079 | lpfc_issue_els_prli(vport, ndlp, cmdiocb->retry); | |
c9f8735b | 3080 | return 1; |
dea3101e | 3081 | case ELS_CMD_LOGO: |
5024ab17 | 3082 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 JS |
3083 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
3084 | lpfc_issue_els_logo(vport, ndlp, cmdiocb->retry); | |
c9f8735b | 3085 | return 1; |
dea3101e | 3086 | } |
3087 | } | |
dea3101e | 3088 | /* No retry ELS command <elsCmd> to remote NPORT <did> */ |
98c9ea5c JS |
3089 | if (logerr) { |
3090 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
3091 | "0137 No retry ELS command x%x to remote " | |
3092 | "NPORT x%x: Out of Resources: Error:x%x/%x\n", | |
3093 | cmd, did, irsp->ulpStatus, | |
3094 | irsp->un.ulpWord[4]); | |
3095 | } | |
3096 | else { | |
3097 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
a58cbd52 JS |
3098 | "0108 No retry ELS command x%x to remote " |
3099 | "NPORT x%x Retried:%d Error:x%x/%x\n", | |
3100 | cmd, did, cmdiocb->retry, irsp->ulpStatus, | |
3101 | irsp->un.ulpWord[4]); | |
98c9ea5c | 3102 | } |
c9f8735b | 3103 | return 0; |
dea3101e | 3104 | } |
3105 | ||
e59058c4 | 3106 | /** |
3621a710 | 3107 | * lpfc_els_free_data - Free lpfc dma buffer and data structure with an iocb |
e59058c4 JS |
3108 | * @phba: pointer to lpfc hba data structure. |
3109 | * @buf_ptr1: pointer to the lpfc DMA buffer data structure. | |
3110 | * | |
3111 | * This routine releases the lpfc DMA (Direct Memory Access) buffer(s) | |
3112 | * associated with a command IOCB back to the lpfc DMA buffer pool. It first | |
3113 | * checks to see whether there is a lpfc DMA buffer associated with the | |
3114 | * response of the command IOCB. If so, it will be released before releasing | |
3115 | * the lpfc DMA buffer associated with the IOCB itself. | |
3116 | * | |
3117 | * Return code | |
3118 | * 0 - Successfully released lpfc DMA buffer (currently, always return 0) | |
3119 | **/ | |
09372820 | 3120 | static int |
87af33fe JS |
3121 | lpfc_els_free_data(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr1) |
3122 | { | |
3123 | struct lpfc_dmabuf *buf_ptr; | |
3124 | ||
e59058c4 | 3125 | /* Free the response before processing the command. */ |
87af33fe JS |
3126 | if (!list_empty(&buf_ptr1->list)) { |
3127 | list_remove_head(&buf_ptr1->list, buf_ptr, | |
3128 | struct lpfc_dmabuf, | |
3129 | list); | |
3130 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); | |
3131 | kfree(buf_ptr); | |
3132 | } | |
3133 | lpfc_mbuf_free(phba, buf_ptr1->virt, buf_ptr1->phys); | |
3134 | kfree(buf_ptr1); | |
3135 | return 0; | |
3136 | } | |
3137 | ||
e59058c4 | 3138 | /** |
3621a710 | 3139 | * lpfc_els_free_bpl - Free lpfc dma buffer and data structure with bpl |
e59058c4 JS |
3140 | * @phba: pointer to lpfc hba data structure. |
3141 | * @buf_ptr: pointer to the lpfc dma buffer data structure. | |
3142 | * | |
3143 | * This routine releases the lpfc Direct Memory Access (DMA) buffer | |
3144 | * associated with a Buffer Pointer List (BPL) back to the lpfc DMA buffer | |
3145 | * pool. | |
3146 | * | |
3147 | * Return code | |
3148 | * 0 - Successfully released lpfc DMA buffer (currently, always return 0) | |
3149 | **/ | |
09372820 | 3150 | static int |
87af33fe JS |
3151 | lpfc_els_free_bpl(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr) |
3152 | { | |
3153 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); | |
3154 | kfree(buf_ptr); | |
3155 | return 0; | |
3156 | } | |
3157 | ||
e59058c4 | 3158 | /** |
3621a710 | 3159 | * lpfc_els_free_iocb - Free a command iocb and its associated resources |
e59058c4 JS |
3160 | * @phba: pointer to lpfc hba data structure. |
3161 | * @elsiocb: pointer to lpfc els command iocb data structure. | |
3162 | * | |
3163 | * This routine frees a command IOCB and its associated resources. The | |
3164 | * command IOCB data structure contains the reference to various associated | |
3165 | * resources, these fields must be set to NULL if the associated reference | |
3166 | * not present: | |
3167 | * context1 - reference to ndlp | |
3168 | * context2 - reference to cmd | |
3169 | * context2->next - reference to rsp | |
3170 | * context3 - reference to bpl | |
3171 | * | |
3172 | * It first properly decrements the reference count held on ndlp for the | |
3173 | * IOCB completion callback function. If LPFC_DELAY_MEM_FREE flag is not | |
3174 | * set, it invokes the lpfc_els_free_data() routine to release the Direct | |
3175 | * Memory Access (DMA) buffers associated with the IOCB. Otherwise, it | |
3176 | * adds the DMA buffer the @phba data structure for the delayed release. | |
3177 | * If reference to the Buffer Pointer List (BPL) is present, the | |
3178 | * lpfc_els_free_bpl() routine is invoked to release the DMA memory | |
3179 | * associated with BPL. Finally, the lpfc_sli_release_iocbq() routine is | |
3180 | * invoked to release the IOCB data structure back to @phba IOCBQ list. | |
3181 | * | |
3182 | * Return code | |
3183 | * 0 - Success (currently, always return 0) | |
3184 | **/ | |
dea3101e | 3185 | int |
329f9bc7 | 3186 | lpfc_els_free_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *elsiocb) |
dea3101e | 3187 | { |
3188 | struct lpfc_dmabuf *buf_ptr, *buf_ptr1; | |
a8adb832 JS |
3189 | struct lpfc_nodelist *ndlp; |
3190 | ||
3191 | ndlp = (struct lpfc_nodelist *)elsiocb->context1; | |
3192 | if (ndlp) { | |
3193 | if (ndlp->nlp_flag & NLP_DEFER_RM) { | |
3194 | lpfc_nlp_put(ndlp); | |
dea3101e | 3195 | |
a8adb832 JS |
3196 | /* If the ndlp is not being used by another discovery |
3197 | * thread, free it. | |
3198 | */ | |
3199 | if (!lpfc_nlp_not_used(ndlp)) { | |
3200 | /* If ndlp is being used by another discovery | |
3201 | * thread, just clear NLP_DEFER_RM | |
3202 | */ | |
3203 | ndlp->nlp_flag &= ~NLP_DEFER_RM; | |
3204 | } | |
3205 | } | |
3206 | else | |
3207 | lpfc_nlp_put(ndlp); | |
329f9bc7 JS |
3208 | elsiocb->context1 = NULL; |
3209 | } | |
dea3101e | 3210 | /* context2 = cmd, context2->next = rsp, context3 = bpl */ |
3211 | if (elsiocb->context2) { | |
0ff10d46 JS |
3212 | if (elsiocb->iocb_flag & LPFC_DELAY_MEM_FREE) { |
3213 | /* Firmware could still be in progress of DMAing | |
3214 | * payload, so don't free data buffer till after | |
3215 | * a hbeat. | |
3216 | */ | |
3217 | elsiocb->iocb_flag &= ~LPFC_DELAY_MEM_FREE; | |
3218 | buf_ptr = elsiocb->context2; | |
3219 | elsiocb->context2 = NULL; | |
3220 | if (buf_ptr) { | |
3221 | buf_ptr1 = NULL; | |
3222 | spin_lock_irq(&phba->hbalock); | |
3223 | if (!list_empty(&buf_ptr->list)) { | |
3224 | list_remove_head(&buf_ptr->list, | |
3225 | buf_ptr1, struct lpfc_dmabuf, | |
3226 | list); | |
3227 | INIT_LIST_HEAD(&buf_ptr1->list); | |
3228 | list_add_tail(&buf_ptr1->list, | |
3229 | &phba->elsbuf); | |
3230 | phba->elsbuf_cnt++; | |
3231 | } | |
3232 | INIT_LIST_HEAD(&buf_ptr->list); | |
3233 | list_add_tail(&buf_ptr->list, &phba->elsbuf); | |
3234 | phba->elsbuf_cnt++; | |
3235 | spin_unlock_irq(&phba->hbalock); | |
3236 | } | |
3237 | } else { | |
3238 | buf_ptr1 = (struct lpfc_dmabuf *) elsiocb->context2; | |
3239 | lpfc_els_free_data(phba, buf_ptr1); | |
3240 | } | |
dea3101e | 3241 | } |
3242 | ||
3243 | if (elsiocb->context3) { | |
3244 | buf_ptr = (struct lpfc_dmabuf *) elsiocb->context3; | |
87af33fe | 3245 | lpfc_els_free_bpl(phba, buf_ptr); |
dea3101e | 3246 | } |
604a3e30 | 3247 | lpfc_sli_release_iocbq(phba, elsiocb); |
dea3101e | 3248 | return 0; |
3249 | } | |
3250 | ||
e59058c4 | 3251 | /** |
3621a710 | 3252 | * lpfc_cmpl_els_logo_acc - Completion callback function to logo acc response |
e59058c4 JS |
3253 | * @phba: pointer to lpfc hba data structure. |
3254 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
3255 | * @rspiocb: pointer to lpfc response iocb data structure. | |
3256 | * | |
3257 | * This routine is the completion callback function to the Logout (LOGO) | |
3258 | * Accept (ACC) Response ELS command. This routine is invoked to indicate | |
3259 | * the completion of the LOGO process. It invokes the lpfc_nlp_not_used() to | |
3260 | * release the ndlp if it has the last reference remaining (reference count | |
3261 | * is 1). If succeeded (meaning ndlp released), it sets the IOCB context1 | |
3262 | * field to NULL to inform the following lpfc_els_free_iocb() routine no | |
3263 | * ndlp reference count needs to be decremented. Otherwise, the ndlp | |
3264 | * reference use-count shall be decremented by the lpfc_els_free_iocb() | |
3265 | * routine. Finally, the lpfc_els_free_iocb() is invoked to release the | |
3266 | * IOCB data structure. | |
3267 | **/ | |
dea3101e | 3268 | static void |
2e0fef85 JS |
3269 | lpfc_cmpl_els_logo_acc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
3270 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 3271 | { |
2e0fef85 JS |
3272 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; |
3273 | struct lpfc_vport *vport = cmdiocb->vport; | |
858c9f6c JS |
3274 | IOCB_t *irsp; |
3275 | ||
3276 | irsp = &rspiocb->iocb; | |
3277 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
3278 | "ACC LOGO cmpl: status:x%x/x%x did:x%x", | |
3279 | irsp->ulpStatus, irsp->un.ulpWord[4], ndlp->nlp_DID); | |
dea3101e | 3280 | /* ACC to LOGO completes to NPort <nlp_DID> */ |
e8b62011 JS |
3281 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3282 | "0109 ACC to LOGO completes to NPort x%x " | |
3283 | "Data: x%x x%x x%x\n", | |
3284 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3285 | ndlp->nlp_rpi); | |
87af33fe JS |
3286 | |
3287 | if (ndlp->nlp_state == NLP_STE_NPR_NODE) { | |
3288 | /* NPort Recovery mode or node is just allocated */ | |
3289 | if (!lpfc_nlp_not_used(ndlp)) { | |
3290 | /* If the ndlp is being used by another discovery | |
3291 | * thread, just unregister the RPI. | |
3292 | */ | |
3293 | lpfc_unreg_rpi(vport, ndlp); | |
fa4066b6 JS |
3294 | } else { |
3295 | /* Indicate the node has already released, should | |
3296 | * not reference to it from within lpfc_els_free_iocb. | |
3297 | */ | |
3298 | cmdiocb->context1 = NULL; | |
87af33fe | 3299 | } |
dea3101e | 3300 | } |
3301 | lpfc_els_free_iocb(phba, cmdiocb); | |
3302 | return; | |
3303 | } | |
3304 | ||
e59058c4 | 3305 | /** |
3621a710 | 3306 | * lpfc_mbx_cmpl_dflt_rpi - Completion callbk func for unreg dflt rpi mbox cmd |
e59058c4 JS |
3307 | * @phba: pointer to lpfc hba data structure. |
3308 | * @pmb: pointer to the driver internal queue element for mailbox command. | |
3309 | * | |
3310 | * This routine is the completion callback function for unregister default | |
3311 | * RPI (Remote Port Index) mailbox command to the @phba. It simply releases | |
3312 | * the associated lpfc Direct Memory Access (DMA) buffer back to the pool and | |
3313 | * decrements the ndlp reference count held for this completion callback | |
3314 | * function. After that, it invokes the lpfc_nlp_not_used() to check | |
3315 | * whether there is only one reference left on the ndlp. If so, it will | |
3316 | * perform one more decrement and trigger the release of the ndlp. | |
3317 | **/ | |
858c9f6c JS |
3318 | void |
3319 | lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) | |
3320 | { | |
3321 | struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); | |
3322 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; | |
3323 | ||
3324 | pmb->context1 = NULL; | |
d439d286 JS |
3325 | pmb->context2 = NULL; |
3326 | ||
858c9f6c JS |
3327 | lpfc_mbuf_free(phba, mp->virt, mp->phys); |
3328 | kfree(mp); | |
3329 | mempool_free(pmb, phba->mbox_mem_pool); | |
58da1ffb | 3330 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) { |
a8adb832 | 3331 | lpfc_nlp_put(ndlp); |
a8adb832 JS |
3332 | /* This is the end of the default RPI cleanup logic for this |
3333 | * ndlp. If no other discovery threads are using this ndlp. | |
3334 | * we should free all resources associated with it. | |
3335 | */ | |
3336 | lpfc_nlp_not_used(ndlp); | |
3337 | } | |
3772a991 | 3338 | |
858c9f6c JS |
3339 | return; |
3340 | } | |
3341 | ||
e59058c4 | 3342 | /** |
3621a710 | 3343 | * lpfc_cmpl_els_rsp - Completion callback function for els response iocb cmd |
e59058c4 JS |
3344 | * @phba: pointer to lpfc hba data structure. |
3345 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
3346 | * @rspiocb: pointer to lpfc response iocb data structure. | |
3347 | * | |
3348 | * This routine is the completion callback function for ELS Response IOCB | |
3349 | * command. In normal case, this callback function just properly sets the | |
3350 | * nlp_flag bitmap in the ndlp data structure, if the mbox command reference | |
3351 | * field in the command IOCB is not NULL, the referred mailbox command will | |
3352 | * be send out, and then invokes the lpfc_els_free_iocb() routine to release | |
3353 | * the IOCB. Under error conditions, such as when a LS_RJT is returned or a | |
3354 | * link down event occurred during the discovery, the lpfc_nlp_not_used() | |
3355 | * routine shall be invoked trying to release the ndlp if no other threads | |
3356 | * are currently referring it. | |
3357 | **/ | |
dea3101e | 3358 | static void |
858c9f6c | 3359 | lpfc_cmpl_els_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
329f9bc7 | 3360 | struct lpfc_iocbq *rspiocb) |
dea3101e | 3361 | { |
2e0fef85 JS |
3362 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; |
3363 | struct lpfc_vport *vport = ndlp ? ndlp->vport : NULL; | |
3364 | struct Scsi_Host *shost = vport ? lpfc_shost_from_vport(vport) : NULL; | |
87af33fe JS |
3365 | IOCB_t *irsp; |
3366 | uint8_t *pcmd; | |
dea3101e | 3367 | LPFC_MBOXQ_t *mbox = NULL; |
2e0fef85 | 3368 | struct lpfc_dmabuf *mp = NULL; |
87af33fe | 3369 | uint32_t ls_rjt = 0; |
dea3101e | 3370 | |
33ccf8d1 JS |
3371 | irsp = &rspiocb->iocb; |
3372 | ||
dea3101e | 3373 | if (cmdiocb->context_un.mbox) |
3374 | mbox = cmdiocb->context_un.mbox; | |
3375 | ||
fa4066b6 JS |
3376 | /* First determine if this is a LS_RJT cmpl. Note, this callback |
3377 | * function can have cmdiocb->contest1 (ndlp) field set to NULL. | |
3378 | */ | |
87af33fe | 3379 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt); |
58da1ffb JS |
3380 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && |
3381 | (*((uint32_t *) (pcmd)) == ELS_CMD_LS_RJT)) { | |
fa4066b6 | 3382 | /* A LS_RJT associated with Default RPI cleanup has its own |
3ad2f3fb | 3383 | * separate code path. |
87af33fe JS |
3384 | */ |
3385 | if (!(ndlp->nlp_flag & NLP_RM_DFLT_RPI)) | |
3386 | ls_rjt = 1; | |
3387 | } | |
3388 | ||
dea3101e | 3389 | /* Check to see if link went down during discovery */ |
58da1ffb | 3390 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || lpfc_els_chk_latt(vport)) { |
dea3101e | 3391 | if (mbox) { |
14691150 JS |
3392 | mp = (struct lpfc_dmabuf *) mbox->context1; |
3393 | if (mp) { | |
3394 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
3395 | kfree(mp); | |
3396 | } | |
329f9bc7 | 3397 | mempool_free(mbox, phba->mbox_mem_pool); |
dea3101e | 3398 | } |
58da1ffb JS |
3399 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && |
3400 | (ndlp->nlp_flag & NLP_RM_DFLT_RPI)) | |
fa4066b6 | 3401 | if (lpfc_nlp_not_used(ndlp)) { |
98c9ea5c | 3402 | ndlp = NULL; |
fa4066b6 JS |
3403 | /* Indicate the node has already released, |
3404 | * should not reference to it from within | |
3405 | * the routine lpfc_els_free_iocb. | |
3406 | */ | |
3407 | cmdiocb->context1 = NULL; | |
3408 | } | |
dea3101e | 3409 | goto out; |
3410 | } | |
3411 | ||
858c9f6c | 3412 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
51ef4c26 | 3413 | "ELS rsp cmpl: status:x%x/x%x did:x%x", |
858c9f6c | 3414 | irsp->ulpStatus, irsp->un.ulpWord[4], |
51ef4c26 | 3415 | cmdiocb->iocb.un.elsreq64.remoteID); |
dea3101e | 3416 | /* ELS response tag <ulpIoTag> completes */ |
e8b62011 JS |
3417 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3418 | "0110 ELS response tag x%x completes " | |
3419 | "Data: x%x x%x x%x x%x x%x x%x x%x\n", | |
3420 | cmdiocb->iocb.ulpIoTag, rspiocb->iocb.ulpStatus, | |
3421 | rspiocb->iocb.un.ulpWord[4], rspiocb->iocb.ulpTimeout, | |
3422 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3423 | ndlp->nlp_rpi); | |
dea3101e | 3424 | if (mbox) { |
3425 | if ((rspiocb->iocb.ulpStatus == 0) | |
3426 | && (ndlp->nlp_flag & NLP_ACC_REGLOGIN)) { | |
2e0fef85 | 3427 | lpfc_unreg_rpi(vport, ndlp); |
e47c9093 JS |
3428 | /* Increment reference count to ndlp to hold the |
3429 | * reference to ndlp for the callback function. | |
3430 | */ | |
329f9bc7 | 3431 | mbox->context2 = lpfc_nlp_get(ndlp); |
2e0fef85 | 3432 | mbox->vport = vport; |
858c9f6c JS |
3433 | if (ndlp->nlp_flag & NLP_RM_DFLT_RPI) { |
3434 | mbox->mbox_flag |= LPFC_MBX_IMED_UNREG; | |
3435 | mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi; | |
3436 | } | |
3437 | else { | |
3438 | mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; | |
3439 | ndlp->nlp_prev_state = ndlp->nlp_state; | |
3440 | lpfc_nlp_set_state(vport, ndlp, | |
2e0fef85 | 3441 | NLP_STE_REG_LOGIN_ISSUE); |
858c9f6c | 3442 | } |
0b727fea | 3443 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) |
e47c9093 | 3444 | != MBX_NOT_FINISHED) |
dea3101e | 3445 | goto out; |
e47c9093 JS |
3446 | else |
3447 | /* Decrement the ndlp reference count we | |
3448 | * set for this failed mailbox command. | |
3449 | */ | |
3450 | lpfc_nlp_put(ndlp); | |
98c9ea5c JS |
3451 | |
3452 | /* ELS rsp: Cannot issue reg_login for <NPortid> */ | |
3453 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
3454 | "0138 ELS rsp: Cannot issue reg_login for x%x " | |
3455 | "Data: x%x x%x x%x\n", | |
3456 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3457 | ndlp->nlp_rpi); | |
3458 | ||
fa4066b6 | 3459 | if (lpfc_nlp_not_used(ndlp)) { |
98c9ea5c | 3460 | ndlp = NULL; |
fa4066b6 JS |
3461 | /* Indicate node has already been released, |
3462 | * should not reference to it from within | |
3463 | * the routine lpfc_els_free_iocb. | |
3464 | */ | |
3465 | cmdiocb->context1 = NULL; | |
3466 | } | |
dea3101e | 3467 | } else { |
858c9f6c JS |
3468 | /* Do not drop node for lpfc_els_abort'ed ELS cmds */ |
3469 | if (!lpfc_error_lost_link(irsp) && | |
3470 | ndlp->nlp_flag & NLP_ACC_REGLOGIN) { | |
fa4066b6 | 3471 | if (lpfc_nlp_not_used(ndlp)) { |
98c9ea5c | 3472 | ndlp = NULL; |
fa4066b6 JS |
3473 | /* Indicate node has already been |
3474 | * released, should not reference | |
3475 | * to it from within the routine | |
3476 | * lpfc_els_free_iocb. | |
3477 | */ | |
3478 | cmdiocb->context1 = NULL; | |
3479 | } | |
dea3101e | 3480 | } |
3481 | } | |
14691150 JS |
3482 | mp = (struct lpfc_dmabuf *) mbox->context1; |
3483 | if (mp) { | |
3484 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
3485 | kfree(mp); | |
3486 | } | |
3487 | mempool_free(mbox, phba->mbox_mem_pool); | |
dea3101e | 3488 | } |
3489 | out: | |
58da1ffb | 3490 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) { |
2e0fef85 | 3491 | spin_lock_irq(shost->host_lock); |
858c9f6c | 3492 | ndlp->nlp_flag &= ~(NLP_ACC_REGLOGIN | NLP_RM_DFLT_RPI); |
2e0fef85 | 3493 | spin_unlock_irq(shost->host_lock); |
87af33fe JS |
3494 | |
3495 | /* If the node is not being used by another discovery thread, | |
3496 | * and we are sending a reject, we are done with it. | |
3497 | * Release driver reference count here and free associated | |
3498 | * resources. | |
3499 | */ | |
3500 | if (ls_rjt) | |
fa4066b6 JS |
3501 | if (lpfc_nlp_not_used(ndlp)) |
3502 | /* Indicate node has already been released, | |
3503 | * should not reference to it from within | |
3504 | * the routine lpfc_els_free_iocb. | |
3505 | */ | |
3506 | cmdiocb->context1 = NULL; | |
dea3101e | 3507 | } |
87af33fe | 3508 | |
dea3101e | 3509 | lpfc_els_free_iocb(phba, cmdiocb); |
3510 | return; | |
3511 | } | |
3512 | ||
e59058c4 | 3513 | /** |
3621a710 | 3514 | * lpfc_els_rsp_acc - Prepare and issue an acc response iocb command |
e59058c4 JS |
3515 | * @vport: pointer to a host virtual N_Port data structure. |
3516 | * @flag: the els command code to be accepted. | |
3517 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3518 | * @ndlp: pointer to a node-list data structure. | |
3519 | * @mbox: pointer to the driver internal queue element for mailbox command. | |
3520 | * | |
3521 | * This routine prepares and issues an Accept (ACC) response IOCB | |
3522 | * command. It uses the @flag to properly set up the IOCB field for the | |
3523 | * specific ACC response command to be issued and invokes the | |
3524 | * lpfc_sli_issue_iocb() routine to send out ACC response IOCB. If a | |
3525 | * @mbox pointer is passed in, it will be put into the context_un.mbox | |
3526 | * field of the IOCB for the completion callback function to issue the | |
3527 | * mailbox command to the HBA later when callback is invoked. | |
3528 | * | |
3529 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
3530 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
3531 | * will be stored into the context1 field of the IOCB for the completion | |
3532 | * callback function to the corresponding response ELS IOCB command. | |
3533 | * | |
3534 | * Return code | |
3535 | * 0 - Successfully issued acc response | |
3536 | * 1 - Failed to issue acc response | |
3537 | **/ | |
dea3101e | 3538 | int |
2e0fef85 JS |
3539 | lpfc_els_rsp_acc(struct lpfc_vport *vport, uint32_t flag, |
3540 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp, | |
51ef4c26 | 3541 | LPFC_MBOXQ_t *mbox) |
dea3101e | 3542 | { |
2e0fef85 JS |
3543 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
3544 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 3545 | IOCB_t *icmd; |
3546 | IOCB_t *oldcmd; | |
3547 | struct lpfc_iocbq *elsiocb; | |
dea3101e | 3548 | struct lpfc_sli *psli; |
3549 | uint8_t *pcmd; | |
3550 | uint16_t cmdsize; | |
3551 | int rc; | |
82d9a2a2 | 3552 | ELS_PKT *els_pkt_ptr; |
dea3101e | 3553 | |
3554 | psli = &phba->sli; | |
dea3101e | 3555 | oldcmd = &oldiocb->iocb; |
3556 | ||
3557 | switch (flag) { | |
3558 | case ELS_CMD_ACC: | |
92d7f7b0 | 3559 | cmdsize = sizeof(uint32_t); |
2e0fef85 JS |
3560 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, |
3561 | ndlp, ndlp->nlp_DID, ELS_CMD_ACC); | |
488d1469 | 3562 | if (!elsiocb) { |
2e0fef85 | 3563 | spin_lock_irq(shost->host_lock); |
5024ab17 | 3564 | ndlp->nlp_flag &= ~NLP_LOGO_ACC; |
2e0fef85 | 3565 | spin_unlock_irq(shost->host_lock); |
c9f8735b | 3566 | return 1; |
dea3101e | 3567 | } |
2e0fef85 | 3568 | |
dea3101e | 3569 | icmd = &elsiocb->iocb; |
3570 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
3571 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
3572 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 | 3573 | pcmd += sizeof(uint32_t); |
858c9f6c JS |
3574 | |
3575 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
3576 | "Issue ACC: did:x%x flg:x%x", | |
3577 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
dea3101e | 3578 | break; |
3579 | case ELS_CMD_PLOGI: | |
92d7f7b0 | 3580 | cmdsize = (sizeof(struct serv_parm) + sizeof(uint32_t)); |
2e0fef85 JS |
3581 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, |
3582 | ndlp, ndlp->nlp_DID, ELS_CMD_ACC); | |
488d1469 | 3583 | if (!elsiocb) |
c9f8735b | 3584 | return 1; |
488d1469 | 3585 | |
dea3101e | 3586 | icmd = &elsiocb->iocb; |
3587 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
3588 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
3589 | ||
3590 | if (mbox) | |
3591 | elsiocb->context_un.mbox = mbox; | |
3592 | ||
3593 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 JS |
3594 | pcmd += sizeof(uint32_t); |
3595 | memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); | |
858c9f6c JS |
3596 | |
3597 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
3598 | "Issue ACC PLOGI: did:x%x flg:x%x", | |
3599 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
dea3101e | 3600 | break; |
82d9a2a2 | 3601 | case ELS_CMD_PRLO: |
92d7f7b0 | 3602 | cmdsize = sizeof(uint32_t) + sizeof(PRLO); |
2e0fef85 | 3603 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, |
82d9a2a2 JS |
3604 | ndlp, ndlp->nlp_DID, ELS_CMD_PRLO); |
3605 | if (!elsiocb) | |
3606 | return 1; | |
3607 | ||
3608 | icmd = &elsiocb->iocb; | |
3609 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
3610 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
3611 | ||
3612 | memcpy(pcmd, ((struct lpfc_dmabuf *) oldiocb->context2)->virt, | |
92d7f7b0 | 3613 | sizeof(uint32_t) + sizeof(PRLO)); |
82d9a2a2 JS |
3614 | *((uint32_t *) (pcmd)) = ELS_CMD_PRLO_ACC; |
3615 | els_pkt_ptr = (ELS_PKT *) pcmd; | |
3616 | els_pkt_ptr->un.prlo.acceptRspCode = PRLO_REQ_EXECUTED; | |
858c9f6c JS |
3617 | |
3618 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
3619 | "Issue ACC PRLO: did:x%x flg:x%x", | |
3620 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
82d9a2a2 | 3621 | break; |
dea3101e | 3622 | default: |
c9f8735b | 3623 | return 1; |
dea3101e | 3624 | } |
dea3101e | 3625 | /* Xmit ELS ACC response tag <ulpIoTag> */ |
e8b62011 JS |
3626 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3627 | "0128 Xmit ELS ACC response tag x%x, XRI: x%x, " | |
3628 | "DID: x%x, nlp_flag: x%x nlp_state: x%x RPI: x%x\n", | |
3629 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
3630 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3631 | ndlp->nlp_rpi); | |
dea3101e | 3632 | if (ndlp->nlp_flag & NLP_LOGO_ACC) { |
2e0fef85 | 3633 | spin_lock_irq(shost->host_lock); |
c9f8735b | 3634 | ndlp->nlp_flag &= ~NLP_LOGO_ACC; |
2e0fef85 | 3635 | spin_unlock_irq(shost->host_lock); |
dea3101e | 3636 | elsiocb->iocb_cmpl = lpfc_cmpl_els_logo_acc; |
3637 | } else { | |
858c9f6c | 3638 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
dea3101e | 3639 | } |
3640 | ||
3641 | phba->fc_stat.elsXmitACC++; | |
3772a991 | 3642 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
dea3101e | 3643 | if (rc == IOCB_ERROR) { |
3644 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 3645 | return 1; |
dea3101e | 3646 | } |
c9f8735b | 3647 | return 0; |
dea3101e | 3648 | } |
3649 | ||
e59058c4 | 3650 | /** |
3621a710 | 3651 | * lpfc_els_rsp_reject - Propare and issue a rjt response iocb command |
e59058c4 JS |
3652 | * @vport: pointer to a virtual N_Port data structure. |
3653 | * @rejectError: | |
3654 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3655 | * @ndlp: pointer to a node-list data structure. | |
3656 | * @mbox: pointer to the driver internal queue element for mailbox command. | |
3657 | * | |
3658 | * This routine prepares and issue an Reject (RJT) response IOCB | |
3659 | * command. If a @mbox pointer is passed in, it will be put into the | |
3660 | * context_un.mbox field of the IOCB for the completion callback function | |
3661 | * to issue to the HBA later. | |
3662 | * | |
3663 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
3664 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
3665 | * will be stored into the context1 field of the IOCB for the completion | |
3666 | * callback function to the reject response ELS IOCB command. | |
3667 | * | |
3668 | * Return code | |
3669 | * 0 - Successfully issued reject response | |
3670 | * 1 - Failed to issue reject response | |
3671 | **/ | |
dea3101e | 3672 | int |
2e0fef85 | 3673 | lpfc_els_rsp_reject(struct lpfc_vport *vport, uint32_t rejectError, |
858c9f6c JS |
3674 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp, |
3675 | LPFC_MBOXQ_t *mbox) | |
dea3101e | 3676 | { |
2e0fef85 | 3677 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 3678 | IOCB_t *icmd; |
3679 | IOCB_t *oldcmd; | |
3680 | struct lpfc_iocbq *elsiocb; | |
dea3101e | 3681 | struct lpfc_sli *psli; |
3682 | uint8_t *pcmd; | |
3683 | uint16_t cmdsize; | |
3684 | int rc; | |
3685 | ||
3686 | psli = &phba->sli; | |
92d7f7b0 | 3687 | cmdsize = 2 * sizeof(uint32_t); |
2e0fef85 JS |
3688 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
3689 | ndlp->nlp_DID, ELS_CMD_LS_RJT); | |
488d1469 | 3690 | if (!elsiocb) |
c9f8735b | 3691 | return 1; |
dea3101e | 3692 | |
3693 | icmd = &elsiocb->iocb; | |
3694 | oldcmd = &oldiocb->iocb; | |
3695 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
3696 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
3697 | ||
3698 | *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT; | |
92d7f7b0 | 3699 | pcmd += sizeof(uint32_t); |
dea3101e | 3700 | *((uint32_t *) (pcmd)) = rejectError; |
3701 | ||
51ef4c26 | 3702 | if (mbox) |
858c9f6c | 3703 | elsiocb->context_un.mbox = mbox; |
858c9f6c | 3704 | |
dea3101e | 3705 | /* Xmit ELS RJT <err> response tag <ulpIoTag> */ |
e8b62011 JS |
3706 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3707 | "0129 Xmit ELS RJT x%x response tag x%x " | |
3708 | "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, " | |
3709 | "rpi x%x\n", | |
3710 | rejectError, elsiocb->iotag, | |
3711 | elsiocb->iocb.ulpContext, ndlp->nlp_DID, | |
3712 | ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi); | |
858c9f6c JS |
3713 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
3714 | "Issue LS_RJT: did:x%x flg:x%x err:x%x", | |
3715 | ndlp->nlp_DID, ndlp->nlp_flag, rejectError); | |
3716 | ||
dea3101e | 3717 | phba->fc_stat.elsXmitLSRJT++; |
858c9f6c | 3718 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
3772a991 | 3719 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
51ef4c26 | 3720 | |
dea3101e | 3721 | if (rc == IOCB_ERROR) { |
3722 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 3723 | return 1; |
dea3101e | 3724 | } |
c9f8735b | 3725 | return 0; |
dea3101e | 3726 | } |
3727 | ||
e59058c4 | 3728 | /** |
3621a710 | 3729 | * lpfc_els_rsp_adisc_acc - Prepare and issue acc response to adisc iocb cmd |
e59058c4 JS |
3730 | * @vport: pointer to a virtual N_Port data structure. |
3731 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3732 | * @ndlp: pointer to a node-list data structure. | |
3733 | * | |
3734 | * This routine prepares and issues an Accept (ACC) response to Address | |
3735 | * Discover (ADISC) ELS command. It simply prepares the payload of the IOCB | |
3736 | * and invokes the lpfc_sli_issue_iocb() routine to send out the command. | |
3737 | * | |
3738 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
3739 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
3740 | * will be stored into the context1 field of the IOCB for the completion | |
3741 | * callback function to the ADISC Accept response ELS IOCB command. | |
3742 | * | |
3743 | * Return code | |
3744 | * 0 - Successfully issued acc adisc response | |
3745 | * 1 - Failed to issue adisc acc response | |
3746 | **/ | |
dea3101e | 3747 | int |
2e0fef85 JS |
3748 | lpfc_els_rsp_adisc_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb, |
3749 | struct lpfc_nodelist *ndlp) | |
dea3101e | 3750 | { |
2e0fef85 | 3751 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 3752 | ADISC *ap; |
2e0fef85 | 3753 | IOCB_t *icmd, *oldcmd; |
dea3101e | 3754 | struct lpfc_iocbq *elsiocb; |
dea3101e | 3755 | uint8_t *pcmd; |
3756 | uint16_t cmdsize; | |
3757 | int rc; | |
3758 | ||
92d7f7b0 | 3759 | cmdsize = sizeof(uint32_t) + sizeof(ADISC); |
2e0fef85 JS |
3760 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
3761 | ndlp->nlp_DID, ELS_CMD_ACC); | |
488d1469 | 3762 | if (!elsiocb) |
c9f8735b | 3763 | return 1; |
dea3101e | 3764 | |
5b8bd0c9 JS |
3765 | icmd = &elsiocb->iocb; |
3766 | oldcmd = &oldiocb->iocb; | |
3767 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
3768 | ||
dea3101e | 3769 | /* Xmit ADISC ACC response tag <ulpIoTag> */ |
e8b62011 JS |
3770 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3771 | "0130 Xmit ADISC ACC response iotag x%x xri: " | |
3772 | "x%x, did x%x, nlp_flag x%x, nlp_state x%x rpi x%x\n", | |
3773 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
3774 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3775 | ndlp->nlp_rpi); | |
dea3101e | 3776 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
3777 | ||
3778 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 | 3779 | pcmd += sizeof(uint32_t); |
dea3101e | 3780 | |
3781 | ap = (ADISC *) (pcmd); | |
3782 | ap->hardAL_PA = phba->fc_pref_ALPA; | |
92d7f7b0 JS |
3783 | memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name)); |
3784 | memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
2e0fef85 | 3785 | ap->DID = be32_to_cpu(vport->fc_myDID); |
dea3101e | 3786 | |
858c9f6c JS |
3787 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
3788 | "Issue ACC ADISC: did:x%x flg:x%x", | |
3789 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
3790 | ||
dea3101e | 3791 | phba->fc_stat.elsXmitACC++; |
858c9f6c | 3792 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
3772a991 | 3793 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
dea3101e | 3794 | if (rc == IOCB_ERROR) { |
3795 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 3796 | return 1; |
dea3101e | 3797 | } |
c9f8735b | 3798 | return 0; |
dea3101e | 3799 | } |
3800 | ||
e59058c4 | 3801 | /** |
3621a710 | 3802 | * lpfc_els_rsp_prli_acc - Prepare and issue acc response to prli iocb cmd |
e59058c4 JS |
3803 | * @vport: pointer to a virtual N_Port data structure. |
3804 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3805 | * @ndlp: pointer to a node-list data structure. | |
3806 | * | |
3807 | * This routine prepares and issues an Accept (ACC) response to Process | |
3808 | * Login (PRLI) ELS command. It simply prepares the payload of the IOCB | |
3809 | * and invokes the lpfc_sli_issue_iocb() routine to send out the command. | |
3810 | * | |
3811 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
3812 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
3813 | * will be stored into the context1 field of the IOCB for the completion | |
3814 | * callback function to the PRLI Accept response ELS IOCB command. | |
3815 | * | |
3816 | * Return code | |
3817 | * 0 - Successfully issued acc prli response | |
3818 | * 1 - Failed to issue acc prli response | |
3819 | **/ | |
dea3101e | 3820 | int |
2e0fef85 | 3821 | lpfc_els_rsp_prli_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb, |
5b8bd0c9 | 3822 | struct lpfc_nodelist *ndlp) |
dea3101e | 3823 | { |
2e0fef85 | 3824 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 3825 | PRLI *npr; |
3826 | lpfc_vpd_t *vpd; | |
3827 | IOCB_t *icmd; | |
3828 | IOCB_t *oldcmd; | |
3829 | struct lpfc_iocbq *elsiocb; | |
dea3101e | 3830 | struct lpfc_sli *psli; |
3831 | uint8_t *pcmd; | |
3832 | uint16_t cmdsize; | |
3833 | int rc; | |
3834 | ||
3835 | psli = &phba->sli; | |
dea3101e | 3836 | |
92d7f7b0 | 3837 | cmdsize = sizeof(uint32_t) + sizeof(PRLI); |
2e0fef85 | 3838 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
92d7f7b0 | 3839 | ndlp->nlp_DID, (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK))); |
c9f8735b JW |
3840 | if (!elsiocb) |
3841 | return 1; | |
dea3101e | 3842 | |
5b8bd0c9 JS |
3843 | icmd = &elsiocb->iocb; |
3844 | oldcmd = &oldiocb->iocb; | |
3845 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
dea3101e | 3846 | /* Xmit PRLI ACC response tag <ulpIoTag> */ |
e8b62011 JS |
3847 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3848 | "0131 Xmit PRLI ACC response tag x%x xri x%x, " | |
3849 | "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n", | |
3850 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
3851 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3852 | ndlp->nlp_rpi); | |
dea3101e | 3853 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
3854 | ||
3855 | *((uint32_t *) (pcmd)) = (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK)); | |
92d7f7b0 | 3856 | pcmd += sizeof(uint32_t); |
dea3101e | 3857 | |
3858 | /* For PRLI, remainder of payload is PRLI parameter page */ | |
92d7f7b0 | 3859 | memset(pcmd, 0, sizeof(PRLI)); |
dea3101e | 3860 | |
3861 | npr = (PRLI *) pcmd; | |
3862 | vpd = &phba->vpd; | |
3863 | /* | |
0d2b6b83 JS |
3864 | * If the remote port is a target and our firmware version is 3.20 or |
3865 | * later, set the following bits for FC-TAPE support. | |
dea3101e | 3866 | */ |
0d2b6b83 JS |
3867 | if ((ndlp->nlp_type & NLP_FCP_TARGET) && |
3868 | (vpd->rev.feaLevelHigh >= 0x02)) { | |
dea3101e | 3869 | npr->ConfmComplAllowed = 1; |
3870 | npr->Retry = 1; | |
3871 | npr->TaskRetryIdReq = 1; | |
3872 | } | |
3873 | ||
3874 | npr->acceptRspCode = PRLI_REQ_EXECUTED; | |
3875 | npr->estabImagePair = 1; | |
3876 | npr->readXferRdyDis = 1; | |
3877 | npr->ConfmComplAllowed = 1; | |
3878 | ||
3879 | npr->prliType = PRLI_FCP_TYPE; | |
3880 | npr->initiatorFunc = 1; | |
3881 | ||
858c9f6c JS |
3882 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
3883 | "Issue ACC PRLI: did:x%x flg:x%x", | |
3884 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
3885 | ||
dea3101e | 3886 | phba->fc_stat.elsXmitACC++; |
858c9f6c | 3887 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
dea3101e | 3888 | |
3772a991 | 3889 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
dea3101e | 3890 | if (rc == IOCB_ERROR) { |
3891 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 3892 | return 1; |
dea3101e | 3893 | } |
c9f8735b | 3894 | return 0; |
dea3101e | 3895 | } |
3896 | ||
e59058c4 | 3897 | /** |
3621a710 | 3898 | * lpfc_els_rsp_rnid_acc - Issue rnid acc response iocb command |
e59058c4 JS |
3899 | * @vport: pointer to a virtual N_Port data structure. |
3900 | * @format: rnid command format. | |
3901 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3902 | * @ndlp: pointer to a node-list data structure. | |
3903 | * | |
3904 | * This routine issues a Request Node Identification Data (RNID) Accept | |
3905 | * (ACC) response. It constructs the RNID ACC response command according to | |
3906 | * the proper @format and then calls the lpfc_sli_issue_iocb() routine to | |
3907 | * issue the response. Note that this command does not need to hold the ndlp | |
3908 | * reference count for the callback. So, the ndlp reference count taken by | |
3909 | * the lpfc_prep_els_iocb() routine is put back and the context1 field of | |
3910 | * IOCB is set to NULL to indicate to the lpfc_els_free_iocb() routine that | |
3911 | * there is no ndlp reference available. | |
3912 | * | |
3913 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
3914 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
3915 | * will be stored into the context1 field of the IOCB for the completion | |
3916 | * callback function. However, for the RNID Accept Response ELS command, | |
3917 | * this is undone later by this routine after the IOCB is allocated. | |
3918 | * | |
3919 | * Return code | |
3920 | * 0 - Successfully issued acc rnid response | |
3921 | * 1 - Failed to issue acc rnid response | |
3922 | **/ | |
dea3101e | 3923 | static int |
2e0fef85 | 3924 | lpfc_els_rsp_rnid_acc(struct lpfc_vport *vport, uint8_t format, |
329f9bc7 | 3925 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) |
dea3101e | 3926 | { |
2e0fef85 | 3927 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 3928 | RNID *rn; |
2e0fef85 | 3929 | IOCB_t *icmd, *oldcmd; |
dea3101e | 3930 | struct lpfc_iocbq *elsiocb; |
dea3101e | 3931 | struct lpfc_sli *psli; |
3932 | uint8_t *pcmd; | |
3933 | uint16_t cmdsize; | |
3934 | int rc; | |
3935 | ||
3936 | psli = &phba->sli; | |
92d7f7b0 JS |
3937 | cmdsize = sizeof(uint32_t) + sizeof(uint32_t) |
3938 | + (2 * sizeof(struct lpfc_name)); | |
dea3101e | 3939 | if (format) |
92d7f7b0 | 3940 | cmdsize += sizeof(RNID_TOP_DISC); |
dea3101e | 3941 | |
2e0fef85 JS |
3942 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
3943 | ndlp->nlp_DID, ELS_CMD_ACC); | |
488d1469 | 3944 | if (!elsiocb) |
c9f8735b | 3945 | return 1; |
dea3101e | 3946 | |
5b8bd0c9 JS |
3947 | icmd = &elsiocb->iocb; |
3948 | oldcmd = &oldiocb->iocb; | |
3949 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
dea3101e | 3950 | /* Xmit RNID ACC response tag <ulpIoTag> */ |
e8b62011 JS |
3951 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3952 | "0132 Xmit RNID ACC response tag x%x xri x%x\n", | |
3953 | elsiocb->iotag, elsiocb->iocb.ulpContext); | |
dea3101e | 3954 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
dea3101e | 3955 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; |
92d7f7b0 | 3956 | pcmd += sizeof(uint32_t); |
dea3101e | 3957 | |
92d7f7b0 | 3958 | memset(pcmd, 0, sizeof(RNID)); |
dea3101e | 3959 | rn = (RNID *) (pcmd); |
3960 | rn->Format = format; | |
92d7f7b0 JS |
3961 | rn->CommonLen = (2 * sizeof(struct lpfc_name)); |
3962 | memcpy(&rn->portName, &vport->fc_portname, sizeof(struct lpfc_name)); | |
3963 | memcpy(&rn->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
dea3101e | 3964 | switch (format) { |
3965 | case 0: | |
3966 | rn->SpecificLen = 0; | |
3967 | break; | |
3968 | case RNID_TOPOLOGY_DISC: | |
92d7f7b0 | 3969 | rn->SpecificLen = sizeof(RNID_TOP_DISC); |
dea3101e | 3970 | memcpy(&rn->un.topologyDisc.portName, |
92d7f7b0 | 3971 | &vport->fc_portname, sizeof(struct lpfc_name)); |
dea3101e | 3972 | rn->un.topologyDisc.unitType = RNID_HBA; |
3973 | rn->un.topologyDisc.physPort = 0; | |
3974 | rn->un.topologyDisc.attachedNodes = 0; | |
3975 | break; | |
3976 | default: | |
3977 | rn->CommonLen = 0; | |
3978 | rn->SpecificLen = 0; | |
3979 | break; | |
3980 | } | |
3981 | ||
858c9f6c JS |
3982 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
3983 | "Issue ACC RNID: did:x%x flg:x%x", | |
3984 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
3985 | ||
dea3101e | 3986 | phba->fc_stat.elsXmitACC++; |
858c9f6c | 3987 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
329f9bc7 | 3988 | lpfc_nlp_put(ndlp); |
dea3101e | 3989 | elsiocb->context1 = NULL; /* Don't need ndlp for cmpl, |
3990 | * it could be freed */ | |
3991 | ||
3772a991 | 3992 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
dea3101e | 3993 | if (rc == IOCB_ERROR) { |
3994 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 3995 | return 1; |
dea3101e | 3996 | } |
c9f8735b | 3997 | return 0; |
dea3101e | 3998 | } |
3999 | ||
19ca7609 JS |
4000 | /** |
4001 | * lpfc_els_clear_rrq - Clear the rq that this rrq describes. | |
4002 | * @vport: pointer to a virtual N_Port data structure. | |
4003 | * @iocb: pointer to the lpfc command iocb data structure. | |
4004 | * @ndlp: pointer to a node-list data structure. | |
4005 | * | |
4006 | * Return | |
4007 | **/ | |
4008 | static void | |
4009 | lpfc_els_clear_rrq(struct lpfc_vport *vport, | |
4010 | struct lpfc_iocbq *iocb, struct lpfc_nodelist *ndlp) | |
4011 | { | |
4012 | struct lpfc_hba *phba = vport->phba; | |
4013 | uint8_t *pcmd; | |
4014 | struct RRQ *rrq; | |
4015 | uint16_t rxid; | |
4016 | struct lpfc_node_rrq *prrq; | |
4017 | ||
4018 | ||
4019 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) iocb->context2)->virt); | |
4020 | pcmd += sizeof(uint32_t); | |
4021 | rrq = (struct RRQ *)pcmd; | |
4022 | rxid = bf_get(rrq_oxid, rrq); | |
4023 | ||
4024 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
4025 | "2883 Clear RRQ for SID:x%x OXID:x%x RXID:x%x" | |
4026 | " x%x x%x\n", | |
4027 | bf_get(rrq_did, rrq), | |
4028 | bf_get(rrq_oxid, rrq), | |
4029 | rxid, | |
4030 | iocb->iotag, iocb->iocb.ulpContext); | |
4031 | ||
4032 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
4033 | "Clear RRQ: did:x%x flg:x%x exchg:x%.08x", | |
4034 | ndlp->nlp_DID, ndlp->nlp_flag, rrq->rrq_exchg); | |
4035 | prrq = lpfc_get_active_rrq(vport, rxid, ndlp->nlp_DID); | |
4036 | if (prrq) | |
4037 | lpfc_clr_rrq_active(phba, rxid, prrq); | |
4038 | return; | |
4039 | } | |
4040 | ||
12265f68 JS |
4041 | /** |
4042 | * lpfc_els_rsp_echo_acc - Issue echo acc response | |
4043 | * @vport: pointer to a virtual N_Port data structure. | |
4044 | * @data: pointer to echo data to return in the accept. | |
4045 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
4046 | * @ndlp: pointer to a node-list data structure. | |
4047 | * | |
4048 | * Return code | |
4049 | * 0 - Successfully issued acc echo response | |
4050 | * 1 - Failed to issue acc echo response | |
4051 | **/ | |
4052 | static int | |
4053 | lpfc_els_rsp_echo_acc(struct lpfc_vport *vport, uint8_t *data, | |
4054 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) | |
4055 | { | |
4056 | struct lpfc_hba *phba = vport->phba; | |
4057 | struct lpfc_iocbq *elsiocb; | |
4058 | struct lpfc_sli *psli; | |
4059 | uint8_t *pcmd; | |
4060 | uint16_t cmdsize; | |
4061 | int rc; | |
4062 | ||
4063 | psli = &phba->sli; | |
4064 | cmdsize = oldiocb->iocb.unsli3.rcvsli3.acc_len; | |
4065 | ||
4066 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, | |
4067 | ndlp->nlp_DID, ELS_CMD_ACC); | |
4068 | if (!elsiocb) | |
4069 | return 1; | |
4070 | ||
4071 | elsiocb->iocb.ulpContext = oldiocb->iocb.ulpContext; /* Xri */ | |
4072 | /* Xmit ECHO ACC response tag <ulpIoTag> */ | |
4073 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
4074 | "2876 Xmit ECHO ACC response tag x%x xri x%x\n", | |
4075 | elsiocb->iotag, elsiocb->iocb.ulpContext); | |
4076 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
4077 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
4078 | pcmd += sizeof(uint32_t); | |
4079 | memcpy(pcmd, data, cmdsize - sizeof(uint32_t)); | |
4080 | ||
4081 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
4082 | "Issue ACC ECHO: did:x%x flg:x%x", | |
4083 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
4084 | ||
4085 | phba->fc_stat.elsXmitACC++; | |
4086 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; | |
4087 | lpfc_nlp_put(ndlp); | |
4088 | elsiocb->context1 = NULL; /* Don't need ndlp for cmpl, | |
4089 | * it could be freed */ | |
4090 | ||
4091 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); | |
4092 | if (rc == IOCB_ERROR) { | |
4093 | lpfc_els_free_iocb(phba, elsiocb); | |
4094 | return 1; | |
4095 | } | |
4096 | return 0; | |
4097 | } | |
4098 | ||
e59058c4 | 4099 | /** |
3621a710 | 4100 | * lpfc_els_disc_adisc - Issue remaining adisc iocbs to npr nodes of a vport |
e59058c4 JS |
4101 | * @vport: pointer to a host virtual N_Port data structure. |
4102 | * | |
4103 | * This routine issues Address Discover (ADISC) ELS commands to those | |
4104 | * N_Ports which are in node port recovery state and ADISC has not been issued | |
4105 | * for the @vport. Each time an ELS ADISC IOCB is issued by invoking the | |
4106 | * lpfc_issue_els_adisc() routine, the per @vport number of discover count | |
4107 | * (num_disc_nodes) shall be incremented. If the num_disc_nodes reaches a | |
4108 | * pre-configured threshold (cfg_discovery_threads), the @vport fc_flag will | |
4109 | * be marked with FC_NLP_MORE bit and the process of issuing remaining ADISC | |
4110 | * IOCBs quit for later pick up. On the other hand, after walking through | |
4111 | * all the ndlps with the @vport and there is none ADISC IOCB issued, the | |
4112 | * @vport fc_flag shall be cleared with FC_NLP_MORE bit indicating there is | |
4113 | * no more ADISC need to be sent. | |
4114 | * | |
4115 | * Return code | |
4116 | * The number of N_Ports with adisc issued. | |
4117 | **/ | |
dea3101e | 4118 | int |
2e0fef85 | 4119 | lpfc_els_disc_adisc(struct lpfc_vport *vport) |
dea3101e | 4120 | { |
2e0fef85 | 4121 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
dea3101e | 4122 | struct lpfc_nodelist *ndlp, *next_ndlp; |
2e0fef85 | 4123 | int sentadisc = 0; |
dea3101e | 4124 | |
685f0bf7 | 4125 | /* go thru NPR nodes and issue any remaining ELS ADISCs */ |
2e0fef85 | 4126 | list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { |
e47c9093 JS |
4127 | if (!NLP_CHK_NODE_ACT(ndlp)) |
4128 | continue; | |
685f0bf7 JS |
4129 | if (ndlp->nlp_state == NLP_STE_NPR_NODE && |
4130 | (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 && | |
4131 | (ndlp->nlp_flag & NLP_NPR_ADISC) != 0) { | |
2e0fef85 | 4132 | spin_lock_irq(shost->host_lock); |
685f0bf7 | 4133 | ndlp->nlp_flag &= ~NLP_NPR_ADISC; |
2e0fef85 | 4134 | spin_unlock_irq(shost->host_lock); |
685f0bf7 | 4135 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 JS |
4136 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); |
4137 | lpfc_issue_els_adisc(vport, ndlp, 0); | |
685f0bf7 | 4138 | sentadisc++; |
2e0fef85 JS |
4139 | vport->num_disc_nodes++; |
4140 | if (vport->num_disc_nodes >= | |
3de2a653 | 4141 | vport->cfg_discovery_threads) { |
2e0fef85 JS |
4142 | spin_lock_irq(shost->host_lock); |
4143 | vport->fc_flag |= FC_NLP_MORE; | |
4144 | spin_unlock_irq(shost->host_lock); | |
685f0bf7 | 4145 | break; |
dea3101e | 4146 | } |
4147 | } | |
4148 | } | |
4149 | if (sentadisc == 0) { | |
2e0fef85 JS |
4150 | spin_lock_irq(shost->host_lock); |
4151 | vport->fc_flag &= ~FC_NLP_MORE; | |
4152 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 4153 | } |
2fe165b6 | 4154 | return sentadisc; |
dea3101e | 4155 | } |
4156 | ||
e59058c4 | 4157 | /** |
3621a710 | 4158 | * lpfc_els_disc_plogi - Issue plogi for all npr nodes of a vport before adisc |
e59058c4 JS |
4159 | * @vport: pointer to a host virtual N_Port data structure. |
4160 | * | |
4161 | * This routine issues Port Login (PLOGI) ELS commands to all the N_Ports | |
4162 | * which are in node port recovery state, with a @vport. Each time an ELS | |
4163 | * ADISC PLOGI IOCB is issued by invoking the lpfc_issue_els_plogi() routine, | |
4164 | * the per @vport number of discover count (num_disc_nodes) shall be | |
4165 | * incremented. If the num_disc_nodes reaches a pre-configured threshold | |
4166 | * (cfg_discovery_threads), the @vport fc_flag will be marked with FC_NLP_MORE | |
4167 | * bit set and quit the process of issuing remaining ADISC PLOGIN IOCBs for | |
4168 | * later pick up. On the other hand, after walking through all the ndlps with | |
4169 | * the @vport and there is none ADISC PLOGI IOCB issued, the @vport fc_flag | |
4170 | * shall be cleared with the FC_NLP_MORE bit indicating there is no more ADISC | |
4171 | * PLOGI need to be sent. | |
4172 | * | |
4173 | * Return code | |
4174 | * The number of N_Ports with plogi issued. | |
4175 | **/ | |
dea3101e | 4176 | int |
2e0fef85 | 4177 | lpfc_els_disc_plogi(struct lpfc_vport *vport) |
dea3101e | 4178 | { |
2e0fef85 | 4179 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
dea3101e | 4180 | struct lpfc_nodelist *ndlp, *next_ndlp; |
2e0fef85 | 4181 | int sentplogi = 0; |
dea3101e | 4182 | |
2e0fef85 JS |
4183 | /* go thru NPR nodes and issue any remaining ELS PLOGIs */ |
4184 | list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { | |
e47c9093 JS |
4185 | if (!NLP_CHK_NODE_ACT(ndlp)) |
4186 | continue; | |
685f0bf7 JS |
4187 | if (ndlp->nlp_state == NLP_STE_NPR_NODE && |
4188 | (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 && | |
4189 | (ndlp->nlp_flag & NLP_DELAY_TMO) == 0 && | |
4190 | (ndlp->nlp_flag & NLP_NPR_ADISC) == 0) { | |
4191 | ndlp->nlp_prev_state = ndlp->nlp_state; | |
2e0fef85 JS |
4192 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); |
4193 | lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); | |
685f0bf7 | 4194 | sentplogi++; |
2e0fef85 JS |
4195 | vport->num_disc_nodes++; |
4196 | if (vport->num_disc_nodes >= | |
3de2a653 | 4197 | vport->cfg_discovery_threads) { |
2e0fef85 JS |
4198 | spin_lock_irq(shost->host_lock); |
4199 | vport->fc_flag |= FC_NLP_MORE; | |
4200 | spin_unlock_irq(shost->host_lock); | |
685f0bf7 | 4201 | break; |
dea3101e | 4202 | } |
4203 | } | |
4204 | } | |
87af33fe JS |
4205 | if (sentplogi) { |
4206 | lpfc_set_disctmo(vport); | |
4207 | } | |
4208 | else { | |
2e0fef85 JS |
4209 | spin_lock_irq(shost->host_lock); |
4210 | vport->fc_flag &= ~FC_NLP_MORE; | |
4211 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 4212 | } |
2fe165b6 | 4213 | return sentplogi; |
dea3101e | 4214 | } |
4215 | ||
e59058c4 | 4216 | /** |
3621a710 | 4217 | * lpfc_els_flush_rscn - Clean up any rscn activities with a vport |
e59058c4 JS |
4218 | * @vport: pointer to a host virtual N_Port data structure. |
4219 | * | |
4220 | * This routine cleans up any Registration State Change Notification | |
4221 | * (RSCN) activity with a @vport. Note that the fc_rscn_flush flag of the | |
4222 | * @vport together with the host_lock is used to prevent multiple thread | |
4223 | * trying to access the RSCN array on a same @vport at the same time. | |
4224 | **/ | |
92d7f7b0 | 4225 | void |
2e0fef85 | 4226 | lpfc_els_flush_rscn(struct lpfc_vport *vport) |
dea3101e | 4227 | { |
2e0fef85 JS |
4228 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
4229 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 4230 | int i; |
4231 | ||
7f5f3d0d JS |
4232 | spin_lock_irq(shost->host_lock); |
4233 | if (vport->fc_rscn_flush) { | |
4234 | /* Another thread is walking fc_rscn_id_list on this vport */ | |
4235 | spin_unlock_irq(shost->host_lock); | |
4236 | return; | |
4237 | } | |
4238 | /* Indicate we are walking lpfc_els_flush_rscn on this vport */ | |
4239 | vport->fc_rscn_flush = 1; | |
4240 | spin_unlock_irq(shost->host_lock); | |
4241 | ||
2e0fef85 | 4242 | for (i = 0; i < vport->fc_rscn_id_cnt; i++) { |
92d7f7b0 | 4243 | lpfc_in_buf_free(phba, vport->fc_rscn_id_list[i]); |
2e0fef85 | 4244 | vport->fc_rscn_id_list[i] = NULL; |
dea3101e | 4245 | } |
2e0fef85 JS |
4246 | spin_lock_irq(shost->host_lock); |
4247 | vport->fc_rscn_id_cnt = 0; | |
4248 | vport->fc_flag &= ~(FC_RSCN_MODE | FC_RSCN_DISCOVERY); | |
4249 | spin_unlock_irq(shost->host_lock); | |
4250 | lpfc_can_disctmo(vport); | |
7f5f3d0d JS |
4251 | /* Indicate we are done walking this fc_rscn_id_list */ |
4252 | vport->fc_rscn_flush = 0; | |
dea3101e | 4253 | } |
4254 | ||
e59058c4 | 4255 | /** |
3621a710 | 4256 | * lpfc_rscn_payload_check - Check whether there is a pending rscn to a did |
e59058c4 JS |
4257 | * @vport: pointer to a host virtual N_Port data structure. |
4258 | * @did: remote destination port identifier. | |
4259 | * | |
4260 | * This routine checks whether there is any pending Registration State | |
4261 | * Configuration Notification (RSCN) to a @did on @vport. | |
4262 | * | |
4263 | * Return code | |
4264 | * None zero - The @did matched with a pending rscn | |
4265 | * 0 - not able to match @did with a pending rscn | |
4266 | **/ | |
dea3101e | 4267 | int |
2e0fef85 | 4268 | lpfc_rscn_payload_check(struct lpfc_vport *vport, uint32_t did) |
dea3101e | 4269 | { |
4270 | D_ID ns_did; | |
4271 | D_ID rscn_did; | |
dea3101e | 4272 | uint32_t *lp; |
92d7f7b0 | 4273 | uint32_t payload_len, i; |
7f5f3d0d | 4274 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
dea3101e | 4275 | |
4276 | ns_did.un.word = did; | |
dea3101e | 4277 | |
4278 | /* Never match fabric nodes for RSCNs */ | |
4279 | if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) | |
2e0fef85 | 4280 | return 0; |
dea3101e | 4281 | |
4282 | /* If we are doing a FULL RSCN rediscovery, match everything */ | |
2e0fef85 | 4283 | if (vport->fc_flag & FC_RSCN_DISCOVERY) |
c9f8735b | 4284 | return did; |
dea3101e | 4285 | |
7f5f3d0d JS |
4286 | spin_lock_irq(shost->host_lock); |
4287 | if (vport->fc_rscn_flush) { | |
4288 | /* Another thread is walking fc_rscn_id_list on this vport */ | |
4289 | spin_unlock_irq(shost->host_lock); | |
4290 | return 0; | |
4291 | } | |
4292 | /* Indicate we are walking fc_rscn_id_list on this vport */ | |
4293 | vport->fc_rscn_flush = 1; | |
4294 | spin_unlock_irq(shost->host_lock); | |
2e0fef85 | 4295 | for (i = 0; i < vport->fc_rscn_id_cnt; i++) { |
92d7f7b0 JS |
4296 | lp = vport->fc_rscn_id_list[i]->virt; |
4297 | payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK); | |
4298 | payload_len -= sizeof(uint32_t); /* take off word 0 */ | |
dea3101e | 4299 | while (payload_len) { |
92d7f7b0 JS |
4300 | rscn_did.un.word = be32_to_cpu(*lp++); |
4301 | payload_len -= sizeof(uint32_t); | |
eaf15d5b JS |
4302 | switch (rscn_did.un.b.resv & RSCN_ADDRESS_FORMAT_MASK) { |
4303 | case RSCN_ADDRESS_FORMAT_PORT: | |
6fb120a7 JS |
4304 | if ((ns_did.un.b.domain == rscn_did.un.b.domain) |
4305 | && (ns_did.un.b.area == rscn_did.un.b.area) | |
4306 | && (ns_did.un.b.id == rscn_did.un.b.id)) | |
7f5f3d0d | 4307 | goto return_did_out; |
dea3101e | 4308 | break; |
eaf15d5b | 4309 | case RSCN_ADDRESS_FORMAT_AREA: |
dea3101e | 4310 | if ((ns_did.un.b.domain == rscn_did.un.b.domain) |
4311 | && (ns_did.un.b.area == rscn_did.un.b.area)) | |
7f5f3d0d | 4312 | goto return_did_out; |
dea3101e | 4313 | break; |
eaf15d5b | 4314 | case RSCN_ADDRESS_FORMAT_DOMAIN: |
dea3101e | 4315 | if (ns_did.un.b.domain == rscn_did.un.b.domain) |
7f5f3d0d | 4316 | goto return_did_out; |
dea3101e | 4317 | break; |
eaf15d5b | 4318 | case RSCN_ADDRESS_FORMAT_FABRIC: |
7f5f3d0d | 4319 | goto return_did_out; |
dea3101e | 4320 | } |
4321 | } | |
92d7f7b0 | 4322 | } |
7f5f3d0d JS |
4323 | /* Indicate we are done with walking fc_rscn_id_list on this vport */ |
4324 | vport->fc_rscn_flush = 0; | |
92d7f7b0 | 4325 | return 0; |
7f5f3d0d JS |
4326 | return_did_out: |
4327 | /* Indicate we are done with walking fc_rscn_id_list on this vport */ | |
4328 | vport->fc_rscn_flush = 0; | |
4329 | return did; | |
dea3101e | 4330 | } |
4331 | ||
e59058c4 | 4332 | /** |
3621a710 | 4333 | * lpfc_rscn_recovery_check - Send recovery event to vport nodes matching rscn |
e59058c4 JS |
4334 | * @vport: pointer to a host virtual N_Port data structure. |
4335 | * | |
4336 | * This routine sends recovery (NLP_EVT_DEVICE_RECOVERY) event to the | |
4337 | * state machine for a @vport's nodes that are with pending RSCN (Registration | |
4338 | * State Change Notification). | |
4339 | * | |
4340 | * Return code | |
4341 | * 0 - Successful (currently alway return 0) | |
4342 | **/ | |
dea3101e | 4343 | static int |
2e0fef85 | 4344 | lpfc_rscn_recovery_check(struct lpfc_vport *vport) |
dea3101e | 4345 | { |
685f0bf7 | 4346 | struct lpfc_nodelist *ndlp = NULL; |
dea3101e | 4347 | |
0d2b6b83 | 4348 | /* Move all affected nodes by pending RSCNs to NPR state. */ |
2e0fef85 | 4349 | list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { |
e47c9093 | 4350 | if (!NLP_CHK_NODE_ACT(ndlp) || |
0d2b6b83 JS |
4351 | (ndlp->nlp_state == NLP_STE_UNUSED_NODE) || |
4352 | !lpfc_rscn_payload_check(vport, ndlp->nlp_DID)) | |
685f0bf7 | 4353 | continue; |
2e0fef85 | 4354 | lpfc_disc_state_machine(vport, ndlp, NULL, |
0d2b6b83 JS |
4355 | NLP_EVT_DEVICE_RECOVERY); |
4356 | lpfc_cancel_retry_delay_tmo(vport, ndlp); | |
dea3101e | 4357 | } |
c9f8735b | 4358 | return 0; |
dea3101e | 4359 | } |
4360 | ||
ddcc50f0 | 4361 | /** |
3621a710 | 4362 | * lpfc_send_rscn_event - Send an RSCN event to management application |
ddcc50f0 JS |
4363 | * @vport: pointer to a host virtual N_Port data structure. |
4364 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4365 | * | |
4366 | * lpfc_send_rscn_event sends an RSCN netlink event to management | |
4367 | * applications. | |
4368 | */ | |
4369 | static void | |
4370 | lpfc_send_rscn_event(struct lpfc_vport *vport, | |
4371 | struct lpfc_iocbq *cmdiocb) | |
4372 | { | |
4373 | struct lpfc_dmabuf *pcmd; | |
4374 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
4375 | uint32_t *payload_ptr; | |
4376 | uint32_t payload_len; | |
4377 | struct lpfc_rscn_event_header *rscn_event_data; | |
4378 | ||
4379 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
4380 | payload_ptr = (uint32_t *) pcmd->virt; | |
4381 | payload_len = be32_to_cpu(*payload_ptr & ~ELS_CMD_MASK); | |
4382 | ||
4383 | rscn_event_data = kmalloc(sizeof(struct lpfc_rscn_event_header) + | |
4384 | payload_len, GFP_KERNEL); | |
4385 | if (!rscn_event_data) { | |
4386 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
4387 | "0147 Failed to allocate memory for RSCN event\n"); | |
4388 | return; | |
4389 | } | |
4390 | rscn_event_data->event_type = FC_REG_RSCN_EVENT; | |
4391 | rscn_event_data->payload_length = payload_len; | |
4392 | memcpy(rscn_event_data->rscn_payload, payload_ptr, | |
4393 | payload_len); | |
4394 | ||
4395 | fc_host_post_vendor_event(shost, | |
4396 | fc_get_event_number(), | |
4397 | sizeof(struct lpfc_els_event_header) + payload_len, | |
4398 | (char *)rscn_event_data, | |
4399 | LPFC_NL_VENDOR_ID); | |
4400 | ||
4401 | kfree(rscn_event_data); | |
4402 | } | |
4403 | ||
e59058c4 | 4404 | /** |
3621a710 | 4405 | * lpfc_els_rcv_rscn - Process an unsolicited rscn iocb |
e59058c4 JS |
4406 | * @vport: pointer to a host virtual N_Port data structure. |
4407 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4408 | * @ndlp: pointer to a node-list data structure. | |
4409 | * | |
4410 | * This routine processes an unsolicited RSCN (Registration State Change | |
4411 | * Notification) IOCB. First, the payload of the unsolicited RSCN is walked | |
4412 | * to invoke fc_host_post_event() routine to the FC transport layer. If the | |
4413 | * discover state machine is about to begin discovery, it just accepts the | |
4414 | * RSCN and the discovery process will satisfy the RSCN. If this RSCN only | |
4415 | * contains N_Port IDs for other vports on this HBA, it just accepts the | |
4416 | * RSCN and ignore processing it. If the state machine is in the recovery | |
4417 | * state, the fc_rscn_id_list of this @vport is walked and the | |
4418 | * lpfc_rscn_recovery_check() routine is invoked to send recovery event for | |
4419 | * all nodes that match RSCN payload. Otherwise, the lpfc_els_handle_rscn() | |
4420 | * routine is invoked to handle the RSCN event. | |
4421 | * | |
4422 | * Return code | |
4423 | * 0 - Just sent the acc response | |
4424 | * 1 - Sent the acc response and waited for name server completion | |
4425 | **/ | |
dea3101e | 4426 | static int |
2e0fef85 | 4427 | lpfc_els_rcv_rscn(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
51ef4c26 | 4428 | struct lpfc_nodelist *ndlp) |
dea3101e | 4429 | { |
2e0fef85 JS |
4430 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
4431 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 4432 | struct lpfc_dmabuf *pcmd; |
92d7f7b0 | 4433 | uint32_t *lp, *datap; |
dea3101e | 4434 | IOCB_t *icmd; |
92d7f7b0 | 4435 | uint32_t payload_len, length, nportid, *cmd; |
7f5f3d0d | 4436 | int rscn_cnt; |
92d7f7b0 | 4437 | int rscn_id = 0, hba_id = 0; |
d2873e4c | 4438 | int i; |
dea3101e | 4439 | |
4440 | icmd = &cmdiocb->iocb; | |
4441 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
4442 | lp = (uint32_t *) pcmd->virt; | |
4443 | ||
92d7f7b0 JS |
4444 | payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK); |
4445 | payload_len -= sizeof(uint32_t); /* take off word 0 */ | |
dea3101e | 4446 | /* RSCN received */ |
e8b62011 JS |
4447 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
4448 | "0214 RSCN received Data: x%x x%x x%x x%x\n", | |
7f5f3d0d JS |
4449 | vport->fc_flag, payload_len, *lp, |
4450 | vport->fc_rscn_id_cnt); | |
ddcc50f0 JS |
4451 | |
4452 | /* Send an RSCN event to the management application */ | |
4453 | lpfc_send_rscn_event(vport, cmdiocb); | |
4454 | ||
d2873e4c | 4455 | for (i = 0; i < payload_len/sizeof(uint32_t); i++) |
2e0fef85 | 4456 | fc_host_post_event(shost, fc_get_event_number(), |
d2873e4c JS |
4457 | FCH_EVT_RSCN, lp[i]); |
4458 | ||
dea3101e | 4459 | /* If we are about to begin discovery, just ACC the RSCN. |
4460 | * Discovery processing will satisfy it. | |
4461 | */ | |
2e0fef85 | 4462 | if (vport->port_state <= LPFC_NS_QRY) { |
858c9f6c JS |
4463 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
4464 | "RCV RSCN ignore: did:x%x/ste:x%x flg:x%x", | |
4465 | ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); | |
4466 | ||
51ef4c26 | 4467 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
c9f8735b | 4468 | return 0; |
dea3101e | 4469 | } |
4470 | ||
92d7f7b0 JS |
4471 | /* If this RSCN just contains NPortIDs for other vports on this HBA, |
4472 | * just ACC and ignore it. | |
4473 | */ | |
4474 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && | |
3de2a653 | 4475 | !(vport->cfg_peer_port_login)) { |
92d7f7b0 JS |
4476 | i = payload_len; |
4477 | datap = lp; | |
4478 | while (i > 0) { | |
4479 | nportid = *datap++; | |
4480 | nportid = ((be32_to_cpu(nportid)) & Mask_DID); | |
4481 | i -= sizeof(uint32_t); | |
4482 | rscn_id++; | |
549e55cd JS |
4483 | if (lpfc_find_vport_by_did(phba, nportid)) |
4484 | hba_id++; | |
92d7f7b0 JS |
4485 | } |
4486 | if (rscn_id == hba_id) { | |
4487 | /* ALL NPortIDs in RSCN are on HBA */ | |
e8b62011 | 4488 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
d7c255b2 | 4489 | "0219 Ignore RSCN " |
e8b62011 JS |
4490 | "Data: x%x x%x x%x x%x\n", |
4491 | vport->fc_flag, payload_len, | |
7f5f3d0d | 4492 | *lp, vport->fc_rscn_id_cnt); |
858c9f6c JS |
4493 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
4494 | "RCV RSCN vport: did:x%x/ste:x%x flg:x%x", | |
4495 | ndlp->nlp_DID, vport->port_state, | |
4496 | ndlp->nlp_flag); | |
4497 | ||
92d7f7b0 | 4498 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, |
51ef4c26 | 4499 | ndlp, NULL); |
92d7f7b0 JS |
4500 | return 0; |
4501 | } | |
4502 | } | |
4503 | ||
7f5f3d0d JS |
4504 | spin_lock_irq(shost->host_lock); |
4505 | if (vport->fc_rscn_flush) { | |
4506 | /* Another thread is walking fc_rscn_id_list on this vport */ | |
7f5f3d0d | 4507 | vport->fc_flag |= FC_RSCN_DISCOVERY; |
97957244 | 4508 | spin_unlock_irq(shost->host_lock); |
58da1ffb JS |
4509 | /* Send back ACC */ |
4510 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); | |
7f5f3d0d JS |
4511 | return 0; |
4512 | } | |
4513 | /* Indicate we are walking fc_rscn_id_list on this vport */ | |
4514 | vport->fc_rscn_flush = 1; | |
4515 | spin_unlock_irq(shost->host_lock); | |
af901ca1 | 4516 | /* Get the array count after successfully have the token */ |
7f5f3d0d | 4517 | rscn_cnt = vport->fc_rscn_id_cnt; |
dea3101e | 4518 | /* If we are already processing an RSCN, save the received |
4519 | * RSCN payload buffer, cmdiocb->context2 to process later. | |
4520 | */ | |
2e0fef85 | 4521 | if (vport->fc_flag & (FC_RSCN_MODE | FC_NDISC_ACTIVE)) { |
858c9f6c JS |
4522 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
4523 | "RCV RSCN defer: did:x%x/ste:x%x flg:x%x", | |
4524 | ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); | |
4525 | ||
09372820 | 4526 | spin_lock_irq(shost->host_lock); |
92d7f7b0 JS |
4527 | vport->fc_flag |= FC_RSCN_DEFERRED; |
4528 | if ((rscn_cnt < FC_MAX_HOLD_RSCN) && | |
2e0fef85 | 4529 | !(vport->fc_flag & FC_RSCN_DISCOVERY)) { |
2e0fef85 JS |
4530 | vport->fc_flag |= FC_RSCN_MODE; |
4531 | spin_unlock_irq(shost->host_lock); | |
92d7f7b0 JS |
4532 | if (rscn_cnt) { |
4533 | cmd = vport->fc_rscn_id_list[rscn_cnt-1]->virt; | |
4534 | length = be32_to_cpu(*cmd & ~ELS_CMD_MASK); | |
4535 | } | |
4536 | if ((rscn_cnt) && | |
4537 | (payload_len + length <= LPFC_BPL_SIZE)) { | |
4538 | *cmd &= ELS_CMD_MASK; | |
7f5f3d0d | 4539 | *cmd |= cpu_to_be32(payload_len + length); |
92d7f7b0 JS |
4540 | memcpy(((uint8_t *)cmd) + length, lp, |
4541 | payload_len); | |
4542 | } else { | |
4543 | vport->fc_rscn_id_list[rscn_cnt] = pcmd; | |
4544 | vport->fc_rscn_id_cnt++; | |
4545 | /* If we zero, cmdiocb->context2, the calling | |
4546 | * routine will not try to free it. | |
4547 | */ | |
4548 | cmdiocb->context2 = NULL; | |
4549 | } | |
dea3101e | 4550 | /* Deferred RSCN */ |
e8b62011 JS |
4551 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
4552 | "0235 Deferred RSCN " | |
4553 | "Data: x%x x%x x%x\n", | |
4554 | vport->fc_rscn_id_cnt, vport->fc_flag, | |
4555 | vport->port_state); | |
dea3101e | 4556 | } else { |
2e0fef85 JS |
4557 | vport->fc_flag |= FC_RSCN_DISCOVERY; |
4558 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 4559 | /* ReDiscovery RSCN */ |
e8b62011 JS |
4560 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
4561 | "0234 ReDiscovery RSCN " | |
4562 | "Data: x%x x%x x%x\n", | |
4563 | vport->fc_rscn_id_cnt, vport->fc_flag, | |
4564 | vport->port_state); | |
dea3101e | 4565 | } |
7f5f3d0d JS |
4566 | /* Indicate we are done walking fc_rscn_id_list on this vport */ |
4567 | vport->fc_rscn_flush = 0; | |
dea3101e | 4568 | /* Send back ACC */ |
51ef4c26 | 4569 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
dea3101e | 4570 | /* send RECOVERY event for ALL nodes that match RSCN payload */ |
2e0fef85 | 4571 | lpfc_rscn_recovery_check(vport); |
09372820 | 4572 | spin_lock_irq(shost->host_lock); |
92d7f7b0 | 4573 | vport->fc_flag &= ~FC_RSCN_DEFERRED; |
09372820 | 4574 | spin_unlock_irq(shost->host_lock); |
c9f8735b | 4575 | return 0; |
dea3101e | 4576 | } |
858c9f6c JS |
4577 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
4578 | "RCV RSCN: did:x%x/ste:x%x flg:x%x", | |
4579 | ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); | |
4580 | ||
2e0fef85 JS |
4581 | spin_lock_irq(shost->host_lock); |
4582 | vport->fc_flag |= FC_RSCN_MODE; | |
4583 | spin_unlock_irq(shost->host_lock); | |
4584 | vport->fc_rscn_id_list[vport->fc_rscn_id_cnt++] = pcmd; | |
7f5f3d0d JS |
4585 | /* Indicate we are done walking fc_rscn_id_list on this vport */ |
4586 | vport->fc_rscn_flush = 0; | |
dea3101e | 4587 | /* |
4588 | * If we zero, cmdiocb->context2, the calling routine will | |
4589 | * not try to free it. | |
4590 | */ | |
4591 | cmdiocb->context2 = NULL; | |
2e0fef85 | 4592 | lpfc_set_disctmo(vport); |
dea3101e | 4593 | /* Send back ACC */ |
51ef4c26 | 4594 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
dea3101e | 4595 | /* send RECOVERY event for ALL nodes that match RSCN payload */ |
2e0fef85 | 4596 | lpfc_rscn_recovery_check(vport); |
2e0fef85 | 4597 | return lpfc_els_handle_rscn(vport); |
dea3101e | 4598 | } |
4599 | ||
e59058c4 | 4600 | /** |
3621a710 | 4601 | * lpfc_els_handle_rscn - Handle rscn for a vport |
e59058c4 JS |
4602 | * @vport: pointer to a host virtual N_Port data structure. |
4603 | * | |
4604 | * This routine handles the Registration State Configuration Notification | |
4605 | * (RSCN) for a @vport. If login to NameServer does not exist, a new ndlp shall | |
4606 | * be created and a Port Login (PLOGI) to the NameServer is issued. Otherwise, | |
4607 | * if the ndlp to NameServer exists, a Common Transport (CT) command to the | |
4608 | * NameServer shall be issued. If CT command to the NameServer fails to be | |
4609 | * issued, the lpfc_els_flush_rscn() routine shall be invoked to clean up any | |
4610 | * RSCN activities with the @vport. | |
4611 | * | |
4612 | * Return code | |
4613 | * 0 - Cleaned up rscn on the @vport | |
4614 | * 1 - Wait for plogi to name server before proceed | |
4615 | **/ | |
dea3101e | 4616 | int |
2e0fef85 | 4617 | lpfc_els_handle_rscn(struct lpfc_vport *vport) |
dea3101e | 4618 | { |
4619 | struct lpfc_nodelist *ndlp; | |
2e0fef85 | 4620 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 4621 | |
92d7f7b0 JS |
4622 | /* Ignore RSCN if the port is being torn down. */ |
4623 | if (vport->load_flag & FC_UNLOADING) { | |
4624 | lpfc_els_flush_rscn(vport); | |
4625 | return 0; | |
4626 | } | |
4627 | ||
dea3101e | 4628 | /* Start timer for RSCN processing */ |
2e0fef85 | 4629 | lpfc_set_disctmo(vport); |
dea3101e | 4630 | |
4631 | /* RSCN processed */ | |
e8b62011 JS |
4632 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
4633 | "0215 RSCN processed Data: x%x x%x x%x x%x\n", | |
4634 | vport->fc_flag, 0, vport->fc_rscn_id_cnt, | |
4635 | vport->port_state); | |
dea3101e | 4636 | |
4637 | /* To process RSCN, first compare RSCN data with NameServer */ | |
2e0fef85 | 4638 | vport->fc_ns_retry = 0; |
0ff10d46 JS |
4639 | vport->num_disc_nodes = 0; |
4640 | ||
2e0fef85 | 4641 | ndlp = lpfc_findnode_did(vport, NameServer_DID); |
e47c9093 JS |
4642 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) |
4643 | && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) { | |
dea3101e | 4644 | /* Good ndlp, issue CT Request to NameServer */ |
92d7f7b0 | 4645 | if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0) == 0) |
dea3101e | 4646 | /* Wait for NameServer query cmpl before we can |
4647 | continue */ | |
c9f8735b | 4648 | return 1; |
dea3101e | 4649 | } else { |
4650 | /* If login to NameServer does not exist, issue one */ | |
4651 | /* Good status, issue PLOGI to NameServer */ | |
2e0fef85 | 4652 | ndlp = lpfc_findnode_did(vport, NameServer_DID); |
e47c9093 | 4653 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) |
dea3101e | 4654 | /* Wait for NameServer login cmpl before we can |
4655 | continue */ | |
c9f8735b | 4656 | return 1; |
2e0fef85 | 4657 | |
e47c9093 JS |
4658 | if (ndlp) { |
4659 | ndlp = lpfc_enable_node(vport, ndlp, | |
4660 | NLP_STE_PLOGI_ISSUE); | |
4661 | if (!ndlp) { | |
4662 | lpfc_els_flush_rscn(vport); | |
4663 | return 0; | |
4664 | } | |
4665 | ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE; | |
dea3101e | 4666 | } else { |
e47c9093 JS |
4667 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); |
4668 | if (!ndlp) { | |
4669 | lpfc_els_flush_rscn(vport); | |
4670 | return 0; | |
4671 | } | |
2e0fef85 | 4672 | lpfc_nlp_init(vport, ndlp, NameServer_DID); |
5024ab17 | 4673 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 4674 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); |
dea3101e | 4675 | } |
e47c9093 JS |
4676 | ndlp->nlp_type |= NLP_FABRIC; |
4677 | lpfc_issue_els_plogi(vport, NameServer_DID, 0); | |
4678 | /* Wait for NameServer login cmpl before we can | |
4679 | * continue | |
4680 | */ | |
4681 | return 1; | |
dea3101e | 4682 | } |
4683 | ||
2e0fef85 | 4684 | lpfc_els_flush_rscn(vport); |
c9f8735b | 4685 | return 0; |
dea3101e | 4686 | } |
4687 | ||
e59058c4 | 4688 | /** |
3621a710 | 4689 | * lpfc_els_rcv_flogi - Process an unsolicited flogi iocb |
e59058c4 JS |
4690 | * @vport: pointer to a host virtual N_Port data structure. |
4691 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4692 | * @ndlp: pointer to a node-list data structure. | |
4693 | * | |
4694 | * This routine processes Fabric Login (FLOGI) IOCB received as an ELS | |
4695 | * unsolicited event. An unsolicited FLOGI can be received in a point-to- | |
4696 | * point topology. As an unsolicited FLOGI should not be received in a loop | |
4697 | * mode, any unsolicited FLOGI received in loop mode shall be ignored. The | |
4698 | * lpfc_check_sparm() routine is invoked to check the parameters in the | |
4699 | * unsolicited FLOGI. If parameters validation failed, the routine | |
4700 | * lpfc_els_rsp_reject() shall be called with reject reason code set to | |
4701 | * LSEXP_SPARM_OPTIONS to reject the FLOGI. Otherwise, the Port WWN in the | |
4702 | * FLOGI shall be compared with the Port WWN of the @vport to determine who | |
4703 | * will initiate PLOGI. The higher lexicographical value party shall has | |
4704 | * higher priority (as the winning port) and will initiate PLOGI and | |
4705 | * communicate Port_IDs (Addresses) for both nodes in PLOGI. The result | |
4706 | * of this will be marked in the @vport fc_flag field with FC_PT2PT_PLOGI | |
4707 | * and then the lpfc_els_rsp_acc() routine is invoked to accept the FLOGI. | |
4708 | * | |
4709 | * Return code | |
4710 | * 0 - Successfully processed the unsolicited flogi | |
4711 | * 1 - Failed to process the unsolicited flogi | |
4712 | **/ | |
dea3101e | 4713 | static int |
2e0fef85 | 4714 | lpfc_els_rcv_flogi(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
51ef4c26 | 4715 | struct lpfc_nodelist *ndlp) |
dea3101e | 4716 | { |
2e0fef85 JS |
4717 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
4718 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 4719 | struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; |
4720 | uint32_t *lp = (uint32_t *) pcmd->virt; | |
4721 | IOCB_t *icmd = &cmdiocb->iocb; | |
4722 | struct serv_parm *sp; | |
4723 | LPFC_MBOXQ_t *mbox; | |
4724 | struct ls_rjt stat; | |
4725 | uint32_t cmd, did; | |
4726 | int rc; | |
4727 | ||
4728 | cmd = *lp++; | |
4729 | sp = (struct serv_parm *) lp; | |
4730 | ||
4731 | /* FLOGI received */ | |
4732 | ||
2e0fef85 | 4733 | lpfc_set_disctmo(vport); |
dea3101e | 4734 | |
76a95d75 | 4735 | if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { |
dea3101e | 4736 | /* We should never receive a FLOGI in loop mode, ignore it */ |
4737 | did = icmd->un.elsreq64.remoteID; | |
4738 | ||
4739 | /* An FLOGI ELS command <elsCmd> was received from DID <did> in | |
4740 | Loop Mode */ | |
e8b62011 JS |
4741 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
4742 | "0113 An FLOGI ELS command x%x was " | |
4743 | "received from DID x%x in Loop Mode\n", | |
4744 | cmd, did); | |
c9f8735b | 4745 | return 1; |
dea3101e | 4746 | } |
4747 | ||
4748 | did = Fabric_DID; | |
4749 | ||
341af102 | 4750 | if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3, 1))) { |
dea3101e | 4751 | /* For a FLOGI we accept, then if our portname is greater |
4752 | * then the remote portname we initiate Nport login. | |
4753 | */ | |
4754 | ||
2e0fef85 | 4755 | rc = memcmp(&vport->fc_portname, &sp->portName, |
92d7f7b0 | 4756 | sizeof(struct lpfc_name)); |
dea3101e | 4757 | |
4758 | if (!rc) { | |
2e0fef85 JS |
4759 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
4760 | if (!mbox) | |
c9f8735b | 4761 | return 1; |
2e0fef85 | 4762 | |
dea3101e | 4763 | lpfc_linkdown(phba); |
4764 | lpfc_init_link(phba, mbox, | |
4765 | phba->cfg_topology, | |
4766 | phba->cfg_link_speed); | |
04c68496 | 4767 | mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; |
dea3101e | 4768 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; |
ed957684 | 4769 | mbox->vport = vport; |
0b727fea | 4770 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
5b8bd0c9 | 4771 | lpfc_set_loopback_flag(phba); |
dea3101e | 4772 | if (rc == MBX_NOT_FINISHED) { |
329f9bc7 | 4773 | mempool_free(mbox, phba->mbox_mem_pool); |
dea3101e | 4774 | } |
c9f8735b | 4775 | return 1; |
2fe165b6 | 4776 | } else if (rc > 0) { /* greater than */ |
2e0fef85 JS |
4777 | spin_lock_irq(shost->host_lock); |
4778 | vport->fc_flag |= FC_PT2PT_PLOGI; | |
4779 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 4780 | } |
2e0fef85 JS |
4781 | spin_lock_irq(shost->host_lock); |
4782 | vport->fc_flag |= FC_PT2PT; | |
4783 | vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
4784 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 4785 | } else { |
4786 | /* Reject this request because invalid parameters */ | |
4787 | stat.un.b.lsRjtRsvd0 = 0; | |
4788 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
4789 | stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; | |
4790 | stat.un.b.vendorUnique = 0; | |
858c9f6c JS |
4791 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, |
4792 | NULL); | |
c9f8735b | 4793 | return 1; |
dea3101e | 4794 | } |
4795 | ||
4796 | /* Send back ACC */ | |
51ef4c26 | 4797 | lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL); |
dea3101e | 4798 | |
c9f8735b | 4799 | return 0; |
dea3101e | 4800 | } |
4801 | ||
e59058c4 | 4802 | /** |
3621a710 | 4803 | * lpfc_els_rcv_rnid - Process an unsolicited rnid iocb |
e59058c4 JS |
4804 | * @vport: pointer to a host virtual N_Port data structure. |
4805 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4806 | * @ndlp: pointer to a node-list data structure. | |
4807 | * | |
4808 | * This routine processes Request Node Identification Data (RNID) IOCB | |
4809 | * received as an ELS unsolicited event. Only when the RNID specified format | |
4810 | * 0x0 or 0xDF (Topology Discovery Specific Node Identification Data) | |
4811 | * present, this routine will invoke the lpfc_els_rsp_rnid_acc() routine to | |
4812 | * Accept (ACC) the RNID ELS command. All the other RNID formats are | |
4813 | * rejected by invoking the lpfc_els_rsp_reject() routine. | |
4814 | * | |
4815 | * Return code | |
4816 | * 0 - Successfully processed rnid iocb (currently always return 0) | |
4817 | **/ | |
dea3101e | 4818 | static int |
2e0fef85 JS |
4819 | lpfc_els_rcv_rnid(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
4820 | struct lpfc_nodelist *ndlp) | |
dea3101e | 4821 | { |
4822 | struct lpfc_dmabuf *pcmd; | |
4823 | uint32_t *lp; | |
4824 | IOCB_t *icmd; | |
4825 | RNID *rn; | |
4826 | struct ls_rjt stat; | |
4827 | uint32_t cmd, did; | |
4828 | ||
4829 | icmd = &cmdiocb->iocb; | |
4830 | did = icmd->un.elsreq64.remoteID; | |
4831 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
4832 | lp = (uint32_t *) pcmd->virt; | |
4833 | ||
4834 | cmd = *lp++; | |
4835 | rn = (RNID *) lp; | |
4836 | ||
4837 | /* RNID received */ | |
4838 | ||
4839 | switch (rn->Format) { | |
4840 | case 0: | |
4841 | case RNID_TOPOLOGY_DISC: | |
4842 | /* Send back ACC */ | |
2e0fef85 | 4843 | lpfc_els_rsp_rnid_acc(vport, rn->Format, cmdiocb, ndlp); |
dea3101e | 4844 | break; |
4845 | default: | |
4846 | /* Reject this request because format not supported */ | |
4847 | stat.un.b.lsRjtRsvd0 = 0; | |
4848 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
4849 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
4850 | stat.un.b.vendorUnique = 0; | |
858c9f6c JS |
4851 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, |
4852 | NULL); | |
dea3101e | 4853 | } |
c9f8735b | 4854 | return 0; |
dea3101e | 4855 | } |
4856 | ||
12265f68 JS |
4857 | /** |
4858 | * lpfc_els_rcv_echo - Process an unsolicited echo iocb | |
4859 | * @vport: pointer to a host virtual N_Port data structure. | |
4860 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4861 | * @ndlp: pointer to a node-list data structure. | |
4862 | * | |
4863 | * Return code | |
4864 | * 0 - Successfully processed echo iocb (currently always return 0) | |
4865 | **/ | |
4866 | static int | |
4867 | lpfc_els_rcv_echo(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, | |
4868 | struct lpfc_nodelist *ndlp) | |
4869 | { | |
4870 | uint8_t *pcmd; | |
4871 | ||
4872 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt); | |
4873 | ||
4874 | /* skip over first word of echo command to find echo data */ | |
4875 | pcmd += sizeof(uint32_t); | |
4876 | ||
4877 | lpfc_els_rsp_echo_acc(vport, pcmd, cmdiocb, ndlp); | |
4878 | return 0; | |
4879 | } | |
4880 | ||
e59058c4 | 4881 | /** |
3621a710 | 4882 | * lpfc_els_rcv_lirr - Process an unsolicited lirr iocb |
e59058c4 JS |
4883 | * @vport: pointer to a host virtual N_Port data structure. |
4884 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4885 | * @ndlp: pointer to a node-list data structure. | |
4886 | * | |
4887 | * This routine processes a Link Incident Report Registration(LIRR) IOCB | |
4888 | * received as an ELS unsolicited event. Currently, this function just invokes | |
4889 | * the lpfc_els_rsp_reject() routine to reject the LIRR IOCB unconditionally. | |
4890 | * | |
4891 | * Return code | |
4892 | * 0 - Successfully processed lirr iocb (currently always return 0) | |
4893 | **/ | |
dea3101e | 4894 | static int |
2e0fef85 JS |
4895 | lpfc_els_rcv_lirr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
4896 | struct lpfc_nodelist *ndlp) | |
7bb3b137 JW |
4897 | { |
4898 | struct ls_rjt stat; | |
4899 | ||
4900 | /* For now, unconditionally reject this command */ | |
4901 | stat.un.b.lsRjtRsvd0 = 0; | |
4902 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
4903 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
4904 | stat.un.b.vendorUnique = 0; | |
858c9f6c | 4905 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); |
7bb3b137 JW |
4906 | return 0; |
4907 | } | |
4908 | ||
5ffc266e JS |
4909 | /** |
4910 | * lpfc_els_rcv_rrq - Process an unsolicited rrq iocb | |
4911 | * @vport: pointer to a host virtual N_Port data structure. | |
4912 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4913 | * @ndlp: pointer to a node-list data structure. | |
4914 | * | |
4915 | * This routine processes a Reinstate Recovery Qualifier (RRQ) IOCB | |
4916 | * received as an ELS unsolicited event. A request to RRQ shall only | |
4917 | * be accepted if the Originator Nx_Port N_Port_ID or the Responder | |
4918 | * Nx_Port N_Port_ID of the target Exchange is the same as the | |
4919 | * N_Port_ID of the Nx_Port that makes the request. If the RRQ is | |
4920 | * not accepted, an LS_RJT with reason code "Unable to perform | |
4921 | * command request" and reason code explanation "Invalid Originator | |
4922 | * S_ID" shall be returned. For now, we just unconditionally accept | |
4923 | * RRQ from the target. | |
4924 | **/ | |
4925 | static void | |
4926 | lpfc_els_rcv_rrq(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, | |
4927 | struct lpfc_nodelist *ndlp) | |
4928 | { | |
4929 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); | |
19ca7609 JS |
4930 | if (vport->phba->sli_rev == LPFC_SLI_REV4) |
4931 | lpfc_els_clear_rrq(vport, cmdiocb, ndlp); | |
5ffc266e JS |
4932 | } |
4933 | ||
12265f68 JS |
4934 | /** |
4935 | * lpfc_els_rsp_rls_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd | |
4936 | * @phba: pointer to lpfc hba data structure. | |
4937 | * @pmb: pointer to the driver internal queue element for mailbox command. | |
4938 | * | |
4939 | * This routine is the completion callback function for the MBX_READ_LNK_STAT | |
4940 | * mailbox command. This callback function is to actually send the Accept | |
4941 | * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It | |
4942 | * collects the link statistics from the completion of the MBX_READ_LNK_STAT | |
4943 | * mailbox command, constructs the RPS response with the link statistics | |
4944 | * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC | |
4945 | * response to the RPS. | |
4946 | * | |
4947 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
4948 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
4949 | * will be stored into the context1 field of the IOCB for the completion | |
4950 | * callback function to the RPS Accept Response ELS IOCB command. | |
4951 | * | |
4952 | **/ | |
4953 | static void | |
4954 | lpfc_els_rsp_rls_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) | |
4955 | { | |
4956 | MAILBOX_t *mb; | |
4957 | IOCB_t *icmd; | |
4958 | struct RLS_RSP *rls_rsp; | |
4959 | uint8_t *pcmd; | |
4960 | struct lpfc_iocbq *elsiocb; | |
4961 | struct lpfc_nodelist *ndlp; | |
4962 | uint16_t xri; | |
4963 | uint32_t cmdsize; | |
4964 | ||
4965 | mb = &pmb->u.mb; | |
4966 | ||
4967 | ndlp = (struct lpfc_nodelist *) pmb->context2; | |
4968 | xri = (uint16_t) ((unsigned long)(pmb->context1)); | |
4969 | pmb->context1 = NULL; | |
4970 | pmb->context2 = NULL; | |
4971 | ||
4972 | if (mb->mbxStatus) { | |
4973 | mempool_free(pmb, phba->mbox_mem_pool); | |
4974 | return; | |
4975 | } | |
4976 | ||
4977 | cmdsize = sizeof(struct RLS_RSP) + sizeof(uint32_t); | |
4978 | mempool_free(pmb, phba->mbox_mem_pool); | |
4979 | elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, | |
4980 | lpfc_max_els_tries, ndlp, | |
4981 | ndlp->nlp_DID, ELS_CMD_ACC); | |
4982 | ||
4983 | /* Decrement the ndlp reference count from previous mbox command */ | |
4984 | lpfc_nlp_put(ndlp); | |
4985 | ||
4986 | if (!elsiocb) | |
4987 | return; | |
4988 | ||
4989 | icmd = &elsiocb->iocb; | |
4990 | icmd->ulpContext = xri; | |
4991 | ||
4992 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
4993 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
4994 | pcmd += sizeof(uint32_t); /* Skip past command */ | |
4995 | rls_rsp = (struct RLS_RSP *)pcmd; | |
4996 | ||
4997 | rls_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt); | |
4998 | rls_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt); | |
4999 | rls_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt); | |
5000 | rls_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt); | |
5001 | rls_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord); | |
5002 | rls_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt); | |
5003 | ||
5004 | /* Xmit ELS RLS ACC response tag <ulpIoTag> */ | |
5005 | lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS, | |
5006 | "2874 Xmit ELS RLS ACC response tag x%x xri x%x, " | |
5007 | "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n", | |
5008 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
5009 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
5010 | ndlp->nlp_rpi); | |
5011 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; | |
5012 | phba->fc_stat.elsXmitACC++; | |
5013 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR) | |
5014 | lpfc_els_free_iocb(phba, elsiocb); | |
5015 | } | |
5016 | ||
e59058c4 | 5017 | /** |
3621a710 | 5018 | * lpfc_els_rsp_rps_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd |
e59058c4 JS |
5019 | * @phba: pointer to lpfc hba data structure. |
5020 | * @pmb: pointer to the driver internal queue element for mailbox command. | |
5021 | * | |
5022 | * This routine is the completion callback function for the MBX_READ_LNK_STAT | |
5023 | * mailbox command. This callback function is to actually send the Accept | |
5024 | * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It | |
5025 | * collects the link statistics from the completion of the MBX_READ_LNK_STAT | |
5026 | * mailbox command, constructs the RPS response with the link statistics | |
5027 | * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC | |
5028 | * response to the RPS. | |
5029 | * | |
5030 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
5031 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
5032 | * will be stored into the context1 field of the IOCB for the completion | |
5033 | * callback function to the RPS Accept Response ELS IOCB command. | |
5034 | * | |
5035 | **/ | |
082c0266 | 5036 | static void |
329f9bc7 | 5037 | lpfc_els_rsp_rps_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) |
7bb3b137 | 5038 | { |
7bb3b137 JW |
5039 | MAILBOX_t *mb; |
5040 | IOCB_t *icmd; | |
5041 | RPS_RSP *rps_rsp; | |
5042 | uint8_t *pcmd; | |
5043 | struct lpfc_iocbq *elsiocb; | |
5044 | struct lpfc_nodelist *ndlp; | |
5045 | uint16_t xri, status; | |
5046 | uint32_t cmdsize; | |
5047 | ||
04c68496 | 5048 | mb = &pmb->u.mb; |
7bb3b137 JW |
5049 | |
5050 | ndlp = (struct lpfc_nodelist *) pmb->context2; | |
5051 | xri = (uint16_t) ((unsigned long)(pmb->context1)); | |
041976fb RD |
5052 | pmb->context1 = NULL; |
5053 | pmb->context2 = NULL; | |
7bb3b137 JW |
5054 | |
5055 | if (mb->mbxStatus) { | |
329f9bc7 | 5056 | mempool_free(pmb, phba->mbox_mem_pool); |
7bb3b137 JW |
5057 | return; |
5058 | } | |
5059 | ||
5060 | cmdsize = sizeof(RPS_RSP) + sizeof(uint32_t); | |
329f9bc7 | 5061 | mempool_free(pmb, phba->mbox_mem_pool); |
2e0fef85 JS |
5062 | elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, |
5063 | lpfc_max_els_tries, ndlp, | |
5064 | ndlp->nlp_DID, ELS_CMD_ACC); | |
fa4066b6 JS |
5065 | |
5066 | /* Decrement the ndlp reference count from previous mbox command */ | |
329f9bc7 | 5067 | lpfc_nlp_put(ndlp); |
fa4066b6 | 5068 | |
c9f8735b | 5069 | if (!elsiocb) |
7bb3b137 | 5070 | return; |
7bb3b137 JW |
5071 | |
5072 | icmd = &elsiocb->iocb; | |
5073 | icmd->ulpContext = xri; | |
5074 | ||
5075 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
5076 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 | 5077 | pcmd += sizeof(uint32_t); /* Skip past command */ |
7bb3b137 JW |
5078 | rps_rsp = (RPS_RSP *)pcmd; |
5079 | ||
76a95d75 | 5080 | if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) |
7bb3b137 JW |
5081 | status = 0x10; |
5082 | else | |
5083 | status = 0x8; | |
2e0fef85 | 5084 | if (phba->pport->fc_flag & FC_FABRIC) |
7bb3b137 JW |
5085 | status |= 0x4; |
5086 | ||
5087 | rps_rsp->rsvd1 = 0; | |
09372820 JS |
5088 | rps_rsp->portStatus = cpu_to_be16(status); |
5089 | rps_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt); | |
5090 | rps_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt); | |
5091 | rps_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt); | |
5092 | rps_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt); | |
5093 | rps_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord); | |
5094 | rps_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt); | |
7bb3b137 | 5095 | /* Xmit ELS RPS ACC response tag <ulpIoTag> */ |
e8b62011 JS |
5096 | lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS, |
5097 | "0118 Xmit ELS RPS ACC response tag x%x xri x%x, " | |
5098 | "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n", | |
5099 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
5100 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
5101 | ndlp->nlp_rpi); | |
858c9f6c | 5102 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
7bb3b137 | 5103 | phba->fc_stat.elsXmitACC++; |
3772a991 | 5104 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR) |
7bb3b137 | 5105 | lpfc_els_free_iocb(phba, elsiocb); |
7bb3b137 JW |
5106 | return; |
5107 | } | |
5108 | ||
e59058c4 | 5109 | /** |
12265f68 JS |
5110 | * lpfc_els_rcv_rls - Process an unsolicited rls iocb |
5111 | * @vport: pointer to a host virtual N_Port data structure. | |
5112 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5113 | * @ndlp: pointer to a node-list data structure. | |
5114 | * | |
5115 | * This routine processes Read Port Status (RPL) IOCB received as an | |
5116 | * ELS unsolicited event. It first checks the remote port state. If the | |
5117 | * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE | |
5118 | * state, it invokes the lpfc_els_rsl_reject() routine to send the reject | |
5119 | * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command | |
5120 | * for reading the HBA link statistics. It is for the callback function, | |
5121 | * lpfc_els_rsp_rls_acc(), set to the MBX_READ_LNK_STAT mailbox command | |
5122 | * to actually sending out RPL Accept (ACC) response. | |
5123 | * | |
5124 | * Return codes | |
5125 | * 0 - Successfully processed rls iocb (currently always return 0) | |
5126 | **/ | |
5127 | static int | |
5128 | lpfc_els_rcv_rls(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, | |
5129 | struct lpfc_nodelist *ndlp) | |
5130 | { | |
5131 | struct lpfc_hba *phba = vport->phba; | |
5132 | LPFC_MBOXQ_t *mbox; | |
5133 | struct lpfc_dmabuf *pcmd; | |
5134 | struct ls_rjt stat; | |
5135 | ||
5136 | if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && | |
5137 | (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) | |
5138 | /* reject the unsolicited RPS request and done with it */ | |
5139 | goto reject_out; | |
5140 | ||
5141 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
5142 | ||
5143 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC); | |
5144 | if (mbox) { | |
5145 | lpfc_read_lnk_stat(phba, mbox); | |
5146 | mbox->context1 = | |
5147 | (void *)((unsigned long) cmdiocb->iocb.ulpContext); | |
5148 | mbox->context2 = lpfc_nlp_get(ndlp); | |
5149 | mbox->vport = vport; | |
5150 | mbox->mbox_cmpl = lpfc_els_rsp_rls_acc; | |
5151 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) | |
5152 | != MBX_NOT_FINISHED) | |
5153 | /* Mbox completion will send ELS Response */ | |
5154 | return 0; | |
5155 | /* Decrement reference count used for the failed mbox | |
5156 | * command. | |
5157 | */ | |
5158 | lpfc_nlp_put(ndlp); | |
5159 | mempool_free(mbox, phba->mbox_mem_pool); | |
5160 | } | |
5161 | reject_out: | |
5162 | /* issue rejection response */ | |
5163 | stat.un.b.lsRjtRsvd0 = 0; | |
5164 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
5165 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
5166 | stat.un.b.vendorUnique = 0; | |
5167 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); | |
5168 | return 0; | |
5169 | } | |
5170 | ||
5171 | /** | |
5172 | * lpfc_els_rcv_rtv - Process an unsolicited rtv iocb | |
5173 | * @vport: pointer to a host virtual N_Port data structure. | |
5174 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5175 | * @ndlp: pointer to a node-list data structure. | |
5176 | * | |
5177 | * This routine processes Read Timout Value (RTV) IOCB received as an | |
5178 | * ELS unsolicited event. It first checks the remote port state. If the | |
5179 | * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE | |
5180 | * state, it invokes the lpfc_els_rsl_reject() routine to send the reject | |
5181 | * response. Otherwise, it sends the Accept(ACC) response to a Read Timeout | |
5182 | * Value (RTV) unsolicited IOCB event. | |
5183 | * | |
5184 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
5185 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
5186 | * will be stored into the context1 field of the IOCB for the completion | |
5187 | * callback function to the RPS Accept Response ELS IOCB command. | |
5188 | * | |
5189 | * Return codes | |
5190 | * 0 - Successfully processed rtv iocb (currently always return 0) | |
5191 | **/ | |
5192 | static int | |
5193 | lpfc_els_rcv_rtv(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, | |
5194 | struct lpfc_nodelist *ndlp) | |
5195 | { | |
5196 | struct lpfc_hba *phba = vport->phba; | |
5197 | struct ls_rjt stat; | |
5198 | struct RTV_RSP *rtv_rsp; | |
5199 | uint8_t *pcmd; | |
5200 | struct lpfc_iocbq *elsiocb; | |
5201 | uint32_t cmdsize; | |
5202 | ||
5203 | ||
5204 | if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && | |
5205 | (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) | |
5206 | /* reject the unsolicited RPS request and done with it */ | |
5207 | goto reject_out; | |
5208 | ||
5209 | cmdsize = sizeof(struct RTV_RSP) + sizeof(uint32_t); | |
5210 | elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, | |
5211 | lpfc_max_els_tries, ndlp, | |
5212 | ndlp->nlp_DID, ELS_CMD_ACC); | |
5213 | ||
5214 | if (!elsiocb) | |
5215 | return 1; | |
5216 | ||
5217 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
5218 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
5219 | pcmd += sizeof(uint32_t); /* Skip past command */ | |
5220 | ||
5221 | /* use the command's xri in the response */ | |
5222 | elsiocb->iocb.ulpContext = cmdiocb->iocb.ulpContext; | |
5223 | ||
5224 | rtv_rsp = (struct RTV_RSP *)pcmd; | |
5225 | ||
5226 | /* populate RTV payload */ | |
5227 | rtv_rsp->ratov = cpu_to_be32(phba->fc_ratov * 1000); /* report msecs */ | |
5228 | rtv_rsp->edtov = cpu_to_be32(phba->fc_edtov); | |
5229 | bf_set(qtov_edtovres, rtv_rsp, phba->fc_edtovResol ? 1 : 0); | |
5230 | bf_set(qtov_rttov, rtv_rsp, 0); /* Field is for FC ONLY */ | |
5231 | rtv_rsp->qtov = cpu_to_be32(rtv_rsp->qtov); | |
5232 | ||
5233 | /* Xmit ELS RLS ACC response tag <ulpIoTag> */ | |
5234 | lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS, | |
5235 | "2875 Xmit ELS RTV ACC response tag x%x xri x%x, " | |
5236 | "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x, " | |
5237 | "Data: x%x x%x x%x\n", | |
5238 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
5239 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
5240 | ndlp->nlp_rpi, | |
5241 | rtv_rsp->ratov, rtv_rsp->edtov, rtv_rsp->qtov); | |
5242 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; | |
5243 | phba->fc_stat.elsXmitACC++; | |
5244 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR) | |
5245 | lpfc_els_free_iocb(phba, elsiocb); | |
5246 | return 0; | |
5247 | ||
5248 | reject_out: | |
5249 | /* issue rejection response */ | |
5250 | stat.un.b.lsRjtRsvd0 = 0; | |
5251 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
5252 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
5253 | stat.un.b.vendorUnique = 0; | |
5254 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); | |
5255 | return 0; | |
5256 | } | |
5257 | ||
5258 | /* lpfc_els_rcv_rps - Process an unsolicited rps iocb | |
e59058c4 JS |
5259 | * @vport: pointer to a host virtual N_Port data structure. |
5260 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5261 | * @ndlp: pointer to a node-list data structure. | |
5262 | * | |
5263 | * This routine processes Read Port Status (RPS) IOCB received as an | |
5264 | * ELS unsolicited event. It first checks the remote port state. If the | |
5265 | * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE | |
5266 | * state, it invokes the lpfc_els_rsp_reject() routine to send the reject | |
5267 | * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command | |
5268 | * for reading the HBA link statistics. It is for the callback function, | |
5269 | * lpfc_els_rsp_rps_acc(), set to the MBX_READ_LNK_STAT mailbox command | |
5270 | * to actually sending out RPS Accept (ACC) response. | |
5271 | * | |
5272 | * Return codes | |
5273 | * 0 - Successfully processed rps iocb (currently always return 0) | |
5274 | **/ | |
7bb3b137 | 5275 | static int |
2e0fef85 JS |
5276 | lpfc_els_rcv_rps(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
5277 | struct lpfc_nodelist *ndlp) | |
dea3101e | 5278 | { |
2e0fef85 | 5279 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 5280 | uint32_t *lp; |
7bb3b137 JW |
5281 | uint8_t flag; |
5282 | LPFC_MBOXQ_t *mbox; | |
5283 | struct lpfc_dmabuf *pcmd; | |
5284 | RPS *rps; | |
5285 | struct ls_rjt stat; | |
5286 | ||
2fe165b6 | 5287 | if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && |
90160e01 JS |
5288 | (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) |
5289 | /* reject the unsolicited RPS request and done with it */ | |
5290 | goto reject_out; | |
7bb3b137 JW |
5291 | |
5292 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
5293 | lp = (uint32_t *) pcmd->virt; | |
5294 | flag = (be32_to_cpu(*lp++) & 0xf); | |
5295 | rps = (RPS *) lp; | |
5296 | ||
5297 | if ((flag == 0) || | |
5298 | ((flag == 1) && (be32_to_cpu(rps->un.portNum) == 0)) || | |
2e0fef85 | 5299 | ((flag == 2) && (memcmp(&rps->un.portName, &vport->fc_portname, |
92d7f7b0 | 5300 | sizeof(struct lpfc_name)) == 0))) { |
2e0fef85 | 5301 | |
92d7f7b0 JS |
5302 | printk("Fix me....\n"); |
5303 | dump_stack(); | |
2e0fef85 JS |
5304 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC); |
5305 | if (mbox) { | |
7bb3b137 JW |
5306 | lpfc_read_lnk_stat(phba, mbox); |
5307 | mbox->context1 = | |
92d7f7b0 | 5308 | (void *)((unsigned long) cmdiocb->iocb.ulpContext); |
329f9bc7 | 5309 | mbox->context2 = lpfc_nlp_get(ndlp); |
92d7f7b0 | 5310 | mbox->vport = vport; |
7bb3b137 | 5311 | mbox->mbox_cmpl = lpfc_els_rsp_rps_acc; |
fa4066b6 | 5312 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) |
0b727fea | 5313 | != MBX_NOT_FINISHED) |
7bb3b137 JW |
5314 | /* Mbox completion will send ELS Response */ |
5315 | return 0; | |
fa4066b6 JS |
5316 | /* Decrement reference count used for the failed mbox |
5317 | * command. | |
5318 | */ | |
329f9bc7 | 5319 | lpfc_nlp_put(ndlp); |
7bb3b137 JW |
5320 | mempool_free(mbox, phba->mbox_mem_pool); |
5321 | } | |
5322 | } | |
90160e01 JS |
5323 | |
5324 | reject_out: | |
5325 | /* issue rejection response */ | |
7bb3b137 JW |
5326 | stat.un.b.lsRjtRsvd0 = 0; |
5327 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
5328 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
5329 | stat.un.b.vendorUnique = 0; | |
858c9f6c | 5330 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); |
7bb3b137 JW |
5331 | return 0; |
5332 | } | |
5333 | ||
19ca7609 JS |
5334 | /* lpfc_issue_els_rrq - Process an unsolicited rps iocb |
5335 | * @vport: pointer to a host virtual N_Port data structure. | |
5336 | * @ndlp: pointer to a node-list data structure. | |
5337 | * @did: DID of the target. | |
5338 | * @rrq: Pointer to the rrq struct. | |
5339 | * | |
5340 | * Build a ELS RRQ command and send it to the target. If the issue_iocb is | |
5341 | * Successful the the completion handler will clear the RRQ. | |
5342 | * | |
5343 | * Return codes | |
5344 | * 0 - Successfully sent rrq els iocb. | |
5345 | * 1 - Failed to send rrq els iocb. | |
5346 | **/ | |
5347 | static int | |
5348 | lpfc_issue_els_rrq(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, | |
5349 | uint32_t did, struct lpfc_node_rrq *rrq) | |
5350 | { | |
5351 | struct lpfc_hba *phba = vport->phba; | |
5352 | struct RRQ *els_rrq; | |
5353 | IOCB_t *icmd; | |
5354 | struct lpfc_iocbq *elsiocb; | |
5355 | uint8_t *pcmd; | |
5356 | uint16_t cmdsize; | |
5357 | int ret; | |
5358 | ||
5359 | ||
5360 | if (ndlp != rrq->ndlp) | |
5361 | ndlp = rrq->ndlp; | |
5362 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) | |
5363 | return 1; | |
5364 | ||
5365 | /* If ndlp is not NULL, we will bump the reference count on it */ | |
5366 | cmdsize = (sizeof(uint32_t) + sizeof(struct RRQ)); | |
5367 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, did, | |
5368 | ELS_CMD_RRQ); | |
5369 | if (!elsiocb) | |
5370 | return 1; | |
5371 | ||
5372 | icmd = &elsiocb->iocb; | |
5373 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
5374 | ||
5375 | /* For RRQ request, remainder of payload is Exchange IDs */ | |
5376 | *((uint32_t *) (pcmd)) = ELS_CMD_RRQ; | |
5377 | pcmd += sizeof(uint32_t); | |
5378 | els_rrq = (struct RRQ *) pcmd; | |
5379 | ||
5380 | bf_set(rrq_oxid, els_rrq, rrq->xritag); | |
5381 | bf_set(rrq_rxid, els_rrq, rrq->rxid); | |
5382 | bf_set(rrq_did, els_rrq, vport->fc_myDID); | |
5383 | els_rrq->rrq = cpu_to_be32(els_rrq->rrq); | |
5384 | els_rrq->rrq_exchg = cpu_to_be32(els_rrq->rrq_exchg); | |
5385 | ||
5386 | ||
5387 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, | |
5388 | "Issue RRQ: did:x%x", | |
5389 | did, rrq->xritag, rrq->rxid); | |
5390 | elsiocb->context_un.rrq = rrq; | |
5391 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rrq; | |
5392 | ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); | |
5393 | ||
5394 | if (ret == IOCB_ERROR) { | |
5395 | lpfc_els_free_iocb(phba, elsiocb); | |
5396 | return 1; | |
5397 | } | |
5398 | return 0; | |
5399 | } | |
5400 | ||
5401 | /** | |
5402 | * lpfc_send_rrq - Sends ELS RRQ if needed. | |
5403 | * @phba: pointer to lpfc hba data structure. | |
5404 | * @rrq: pointer to the active rrq. | |
5405 | * | |
5406 | * This routine will call the lpfc_issue_els_rrq if the rrq is | |
5407 | * still active for the xri. If this function returns a failure then | |
5408 | * the caller needs to clean up the RRQ by calling lpfc_clr_active_rrq. | |
5409 | * | |
5410 | * Returns 0 Success. | |
5411 | * 1 Failure. | |
5412 | **/ | |
5413 | int | |
5414 | lpfc_send_rrq(struct lpfc_hba *phba, struct lpfc_node_rrq *rrq) | |
5415 | { | |
5416 | struct lpfc_nodelist *ndlp = lpfc_findnode_did(rrq->vport, | |
5417 | rrq->nlp_DID); | |
5418 | if (lpfc_test_rrq_active(phba, ndlp, rrq->xritag)) | |
5419 | return lpfc_issue_els_rrq(rrq->vport, ndlp, | |
5420 | rrq->nlp_DID, rrq); | |
5421 | else | |
5422 | return 1; | |
5423 | } | |
5424 | ||
e59058c4 | 5425 | /** |
3621a710 | 5426 | * lpfc_els_rsp_rpl_acc - Issue an accept rpl els command |
e59058c4 JS |
5427 | * @vport: pointer to a host virtual N_Port data structure. |
5428 | * @cmdsize: size of the ELS command. | |
5429 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
5430 | * @ndlp: pointer to a node-list data structure. | |
5431 | * | |
5432 | * This routine issuees an Accept (ACC) Read Port List (RPL) ELS command. | |
5433 | * It is to be called by the lpfc_els_rcv_rpl() routine to accept the RPL. | |
5434 | * | |
5435 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
5436 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
5437 | * will be stored into the context1 field of the IOCB for the completion | |
5438 | * callback function to the RPL Accept Response ELS command. | |
5439 | * | |
5440 | * Return code | |
5441 | * 0 - Successfully issued ACC RPL ELS command | |
5442 | * 1 - Failed to issue ACC RPL ELS command | |
5443 | **/ | |
082c0266 | 5444 | static int |
2e0fef85 JS |
5445 | lpfc_els_rsp_rpl_acc(struct lpfc_vport *vport, uint16_t cmdsize, |
5446 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) | |
7bb3b137 | 5447 | { |
2e0fef85 JS |
5448 | struct lpfc_hba *phba = vport->phba; |
5449 | IOCB_t *icmd, *oldcmd; | |
7bb3b137 JW |
5450 | RPL_RSP rpl_rsp; |
5451 | struct lpfc_iocbq *elsiocb; | |
7bb3b137 | 5452 | uint8_t *pcmd; |
dea3101e | 5453 | |
2e0fef85 JS |
5454 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
5455 | ndlp->nlp_DID, ELS_CMD_ACC); | |
7bb3b137 | 5456 | |
488d1469 | 5457 | if (!elsiocb) |
7bb3b137 | 5458 | return 1; |
488d1469 | 5459 | |
7bb3b137 JW |
5460 | icmd = &elsiocb->iocb; |
5461 | oldcmd = &oldiocb->iocb; | |
5462 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
5463 | ||
5464 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
5465 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 | 5466 | pcmd += sizeof(uint16_t); |
7bb3b137 JW |
5467 | *((uint16_t *)(pcmd)) = be16_to_cpu(cmdsize); |
5468 | pcmd += sizeof(uint16_t); | |
5469 | ||
5470 | /* Setup the RPL ACC payload */ | |
5471 | rpl_rsp.listLen = be32_to_cpu(1); | |
5472 | rpl_rsp.index = 0; | |
5473 | rpl_rsp.port_num_blk.portNum = 0; | |
2e0fef85 JS |
5474 | rpl_rsp.port_num_blk.portID = be32_to_cpu(vport->fc_myDID); |
5475 | memcpy(&rpl_rsp.port_num_blk.portName, &vport->fc_portname, | |
7bb3b137 | 5476 | sizeof(struct lpfc_name)); |
7bb3b137 | 5477 | memcpy(pcmd, &rpl_rsp, cmdsize - sizeof(uint32_t)); |
7bb3b137 | 5478 | /* Xmit ELS RPL ACC response tag <ulpIoTag> */ |
e8b62011 JS |
5479 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
5480 | "0120 Xmit ELS RPL ACC response tag x%x " | |
5481 | "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, " | |
5482 | "rpi x%x\n", | |
5483 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
5484 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
5485 | ndlp->nlp_rpi); | |
858c9f6c | 5486 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
7bb3b137 | 5487 | phba->fc_stat.elsXmitACC++; |
3772a991 JS |
5488 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
5489 | IOCB_ERROR) { | |
7bb3b137 JW |
5490 | lpfc_els_free_iocb(phba, elsiocb); |
5491 | return 1; | |
5492 | } | |
5493 | return 0; | |
5494 | } | |
5495 | ||
e59058c4 | 5496 | /** |
3621a710 | 5497 | * lpfc_els_rcv_rpl - Process an unsolicited rpl iocb |
e59058c4 JS |
5498 | * @vport: pointer to a host virtual N_Port data structure. |
5499 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5500 | * @ndlp: pointer to a node-list data structure. | |
5501 | * | |
5502 | * This routine processes Read Port List (RPL) IOCB received as an ELS | |
5503 | * unsolicited event. It first checks the remote port state. If the remote | |
5504 | * port is not in NLP_STE_UNMAPPED_NODE and NLP_STE_MAPPED_NODE states, it | |
5505 | * invokes the lpfc_els_rsp_reject() routine to send reject response. | |
5506 | * Otherwise, this routine then invokes the lpfc_els_rsp_rpl_acc() routine | |
5507 | * to accept the RPL. | |
5508 | * | |
5509 | * Return code | |
5510 | * 0 - Successfully processed rpl iocb (currently always return 0) | |
5511 | **/ | |
7bb3b137 | 5512 | static int |
2e0fef85 JS |
5513 | lpfc_els_rcv_rpl(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
5514 | struct lpfc_nodelist *ndlp) | |
7bb3b137 JW |
5515 | { |
5516 | struct lpfc_dmabuf *pcmd; | |
5517 | uint32_t *lp; | |
5518 | uint32_t maxsize; | |
5519 | uint16_t cmdsize; | |
5520 | RPL *rpl; | |
5521 | struct ls_rjt stat; | |
5522 | ||
2fe165b6 JW |
5523 | if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && |
5524 | (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) { | |
90160e01 | 5525 | /* issue rejection response */ |
7bb3b137 JW |
5526 | stat.un.b.lsRjtRsvd0 = 0; |
5527 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
5528 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
5529 | stat.un.b.vendorUnique = 0; | |
858c9f6c JS |
5530 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, |
5531 | NULL); | |
90160e01 JS |
5532 | /* rejected the unsolicited RPL request and done with it */ |
5533 | return 0; | |
7bb3b137 JW |
5534 | } |
5535 | ||
dea3101e | 5536 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; |
5537 | lp = (uint32_t *) pcmd->virt; | |
7bb3b137 | 5538 | rpl = (RPL *) (lp + 1); |
7bb3b137 | 5539 | maxsize = be32_to_cpu(rpl->maxsize); |
dea3101e | 5540 | |
7bb3b137 JW |
5541 | /* We support only one port */ |
5542 | if ((rpl->index == 0) && | |
5543 | ((maxsize == 0) || | |
5544 | ((maxsize * sizeof(uint32_t)) >= sizeof(RPL_RSP)))) { | |
5545 | cmdsize = sizeof(uint32_t) + sizeof(RPL_RSP); | |
2fe165b6 | 5546 | } else { |
7bb3b137 JW |
5547 | cmdsize = sizeof(uint32_t) + maxsize * sizeof(uint32_t); |
5548 | } | |
2e0fef85 | 5549 | lpfc_els_rsp_rpl_acc(vport, cmdsize, cmdiocb, ndlp); |
dea3101e | 5550 | |
5551 | return 0; | |
5552 | } | |
5553 | ||
e59058c4 | 5554 | /** |
3621a710 | 5555 | * lpfc_els_rcv_farp - Process an unsolicited farp request els command |
e59058c4 JS |
5556 | * @vport: pointer to a virtual N_Port data structure. |
5557 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5558 | * @ndlp: pointer to a node-list data structure. | |
5559 | * | |
5560 | * This routine processes Fibre Channel Address Resolution Protocol | |
5561 | * (FARP) Request IOCB received as an ELS unsolicited event. Currently, | |
5562 | * the lpfc driver only supports matching on WWPN or WWNN for FARP. As such, | |
5563 | * FARP_MATCH_PORT flag and FARP_MATCH_NODE flag are checked against the | |
5564 | * Match Flag in the FARP request IOCB: if FARP_MATCH_PORT flag is set, the | |
5565 | * remote PortName is compared against the FC PortName stored in the @vport | |
5566 | * data structure; if FARP_MATCH_NODE flag is set, the remote NodeName is | |
5567 | * compared against the FC NodeName stored in the @vport data structure. | |
5568 | * If any of these matches and the FARP_REQUEST_FARPR flag is set in the | |
5569 | * FARP request IOCB Response Flag, the lpfc_issue_els_farpr() routine is | |
5570 | * invoked to send out FARP Response to the remote node. Before sending the | |
5571 | * FARP Response, however, the FARP_REQUEST_PLOGI flag is check in the FARP | |
5572 | * request IOCB Response Flag and, if it is set, the lpfc_issue_els_plogi() | |
5573 | * routine is invoked to log into the remote port first. | |
5574 | * | |
5575 | * Return code | |
5576 | * 0 - Either the FARP Match Mode not supported or successfully processed | |
5577 | **/ | |
dea3101e | 5578 | static int |
2e0fef85 JS |
5579 | lpfc_els_rcv_farp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
5580 | struct lpfc_nodelist *ndlp) | |
dea3101e | 5581 | { |
5582 | struct lpfc_dmabuf *pcmd; | |
5583 | uint32_t *lp; | |
5584 | IOCB_t *icmd; | |
5585 | FARP *fp; | |
5586 | uint32_t cmd, cnt, did; | |
5587 | ||
5588 | icmd = &cmdiocb->iocb; | |
5589 | did = icmd->un.elsreq64.remoteID; | |
5590 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
5591 | lp = (uint32_t *) pcmd->virt; | |
5592 | ||
5593 | cmd = *lp++; | |
5594 | fp = (FARP *) lp; | |
dea3101e | 5595 | /* FARP-REQ received from DID <did> */ |
e8b62011 JS |
5596 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
5597 | "0601 FARP-REQ received from DID x%x\n", did); | |
dea3101e | 5598 | /* We will only support match on WWPN or WWNN */ |
5599 | if (fp->Mflags & ~(FARP_MATCH_NODE | FARP_MATCH_PORT)) { | |
c9f8735b | 5600 | return 0; |
dea3101e | 5601 | } |
5602 | ||
5603 | cnt = 0; | |
5604 | /* If this FARP command is searching for my portname */ | |
5605 | if (fp->Mflags & FARP_MATCH_PORT) { | |
2e0fef85 | 5606 | if (memcmp(&fp->RportName, &vport->fc_portname, |
92d7f7b0 | 5607 | sizeof(struct lpfc_name)) == 0) |
dea3101e | 5608 | cnt = 1; |
5609 | } | |
5610 | ||
5611 | /* If this FARP command is searching for my nodename */ | |
5612 | if (fp->Mflags & FARP_MATCH_NODE) { | |
2e0fef85 | 5613 | if (memcmp(&fp->RnodeName, &vport->fc_nodename, |
92d7f7b0 | 5614 | sizeof(struct lpfc_name)) == 0) |
dea3101e | 5615 | cnt = 1; |
5616 | } | |
5617 | ||
5618 | if (cnt) { | |
5619 | if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) || | |
5620 | (ndlp->nlp_state == NLP_STE_MAPPED_NODE)) { | |
5621 | /* Log back into the node before sending the FARP. */ | |
5622 | if (fp->Rflags & FARP_REQUEST_PLOGI) { | |
5024ab17 | 5623 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 5624 | lpfc_nlp_set_state(vport, ndlp, |
de0c5b32 | 5625 | NLP_STE_PLOGI_ISSUE); |
2e0fef85 | 5626 | lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); |
dea3101e | 5627 | } |
5628 | ||
5629 | /* Send a FARP response to that node */ | |
2e0fef85 JS |
5630 | if (fp->Rflags & FARP_REQUEST_FARPR) |
5631 | lpfc_issue_els_farpr(vport, did, 0); | |
dea3101e | 5632 | } |
5633 | } | |
c9f8735b | 5634 | return 0; |
dea3101e | 5635 | } |
5636 | ||
e59058c4 | 5637 | /** |
3621a710 | 5638 | * lpfc_els_rcv_farpr - Process an unsolicited farp response iocb |
e59058c4 JS |
5639 | * @vport: pointer to a host virtual N_Port data structure. |
5640 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5641 | * @ndlp: pointer to a node-list data structure. | |
5642 | * | |
5643 | * This routine processes Fibre Channel Address Resolution Protocol | |
5644 | * Response (FARPR) IOCB received as an ELS unsolicited event. It simply | |
5645 | * invokes the lpfc_els_rsp_acc() routine to the remote node to accept | |
5646 | * the FARP response request. | |
5647 | * | |
5648 | * Return code | |
5649 | * 0 - Successfully processed FARPR IOCB (currently always return 0) | |
5650 | **/ | |
dea3101e | 5651 | static int |
2e0fef85 JS |
5652 | lpfc_els_rcv_farpr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
5653 | struct lpfc_nodelist *ndlp) | |
dea3101e | 5654 | { |
5655 | struct lpfc_dmabuf *pcmd; | |
5656 | uint32_t *lp; | |
5657 | IOCB_t *icmd; | |
5658 | uint32_t cmd, did; | |
5659 | ||
5660 | icmd = &cmdiocb->iocb; | |
5661 | did = icmd->un.elsreq64.remoteID; | |
5662 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
5663 | lp = (uint32_t *) pcmd->virt; | |
5664 | ||
5665 | cmd = *lp++; | |
5666 | /* FARP-RSP received from DID <did> */ | |
e8b62011 JS |
5667 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
5668 | "0600 FARP-RSP received from DID x%x\n", did); | |
dea3101e | 5669 | /* ACCEPT the Farp resp request */ |
51ef4c26 | 5670 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
dea3101e | 5671 | |
5672 | return 0; | |
5673 | } | |
5674 | ||
e59058c4 | 5675 | /** |
3621a710 | 5676 | * lpfc_els_rcv_fan - Process an unsolicited fan iocb command |
e59058c4 JS |
5677 | * @vport: pointer to a host virtual N_Port data structure. |
5678 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5679 | * @fan_ndlp: pointer to a node-list data structure. | |
5680 | * | |
5681 | * This routine processes a Fabric Address Notification (FAN) IOCB | |
5682 | * command received as an ELS unsolicited event. The FAN ELS command will | |
5683 | * only be processed on a physical port (i.e., the @vport represents the | |
5684 | * physical port). The fabric NodeName and PortName from the FAN IOCB are | |
5685 | * compared against those in the phba data structure. If any of those is | |
5686 | * different, the lpfc_initial_flogi() routine is invoked to initialize | |
5687 | * Fabric Login (FLOGI) to the fabric to start the discover over. Otherwise, | |
5688 | * if both of those are identical, the lpfc_issue_fabric_reglogin() routine | |
5689 | * is invoked to register login to the fabric. | |
5690 | * | |
5691 | * Return code | |
5692 | * 0 - Successfully processed fan iocb (currently always return 0). | |
5693 | **/ | |
dea3101e | 5694 | static int |
2e0fef85 JS |
5695 | lpfc_els_rcv_fan(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
5696 | struct lpfc_nodelist *fan_ndlp) | |
dea3101e | 5697 | { |
0d2b6b83 | 5698 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 5699 | uint32_t *lp; |
5024ab17 | 5700 | FAN *fp; |
dea3101e | 5701 | |
0d2b6b83 JS |
5702 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0265 FAN received\n"); |
5703 | lp = (uint32_t *)((struct lpfc_dmabuf *)cmdiocb->context2)->virt; | |
5704 | fp = (FAN *) ++lp; | |
5024ab17 | 5705 | /* FAN received; Fan does not have a reply sequence */ |
0d2b6b83 JS |
5706 | if ((vport == phba->pport) && |
5707 | (vport->port_state == LPFC_LOCAL_CFG_LINK)) { | |
5024ab17 | 5708 | if ((memcmp(&phba->fc_fabparam.nodeName, &fp->FnodeName, |
0d2b6b83 | 5709 | sizeof(struct lpfc_name))) || |
5024ab17 | 5710 | (memcmp(&phba->fc_fabparam.portName, &fp->FportName, |
0d2b6b83 JS |
5711 | sizeof(struct lpfc_name)))) { |
5712 | /* This port has switched fabrics. FLOGI is required */ | |
76a95d75 | 5713 | lpfc_issue_init_vfi(vport); |
0d2b6b83 JS |
5714 | } else { |
5715 | /* FAN verified - skip FLOGI */ | |
5716 | vport->fc_myDID = vport->fc_prevDID; | |
6fb120a7 JS |
5717 | if (phba->sli_rev < LPFC_SLI_REV4) |
5718 | lpfc_issue_fabric_reglogin(vport); | |
5719 | else | |
5720 | lpfc_issue_reg_vfi(vport); | |
5024ab17 | 5721 | } |
dea3101e | 5722 | } |
c9f8735b | 5723 | return 0; |
dea3101e | 5724 | } |
5725 | ||
e59058c4 | 5726 | /** |
3621a710 | 5727 | * lpfc_els_timeout - Handler funciton to the els timer |
e59058c4 JS |
5728 | * @ptr: holder for the timer function associated data. |
5729 | * | |
5730 | * This routine is invoked by the ELS timer after timeout. It posts the ELS | |
5731 | * timer timeout event by setting the WORKER_ELS_TMO bit to the work port | |
5732 | * event bitmap and then invokes the lpfc_worker_wake_up() routine to wake | |
5733 | * up the worker thread. It is for the worker thread to invoke the routine | |
5734 | * lpfc_els_timeout_handler() to work on the posted event WORKER_ELS_TMO. | |
5735 | **/ | |
dea3101e | 5736 | void |
5737 | lpfc_els_timeout(unsigned long ptr) | |
5738 | { | |
2e0fef85 JS |
5739 | struct lpfc_vport *vport = (struct lpfc_vport *) ptr; |
5740 | struct lpfc_hba *phba = vport->phba; | |
5e9d9b82 | 5741 | uint32_t tmo_posted; |
dea3101e | 5742 | unsigned long iflag; |
5743 | ||
2e0fef85 | 5744 | spin_lock_irqsave(&vport->work_port_lock, iflag); |
5e9d9b82 JS |
5745 | tmo_posted = vport->work_port_events & WORKER_ELS_TMO; |
5746 | if (!tmo_posted) | |
2e0fef85 | 5747 | vport->work_port_events |= WORKER_ELS_TMO; |
5e9d9b82 | 5748 | spin_unlock_irqrestore(&vport->work_port_lock, iflag); |
92d7f7b0 | 5749 | |
5e9d9b82 JS |
5750 | if (!tmo_posted) |
5751 | lpfc_worker_wake_up(phba); | |
dea3101e | 5752 | return; |
5753 | } | |
5754 | ||
2a9bf3d0 | 5755 | |
e59058c4 | 5756 | /** |
3621a710 | 5757 | * lpfc_els_timeout_handler - Process an els timeout event |
e59058c4 JS |
5758 | * @vport: pointer to a virtual N_Port data structure. |
5759 | * | |
5760 | * This routine is the actual handler function that processes an ELS timeout | |
5761 | * event. It walks the ELS ring to get and abort all the IOCBs (except the | |
5762 | * ABORT/CLOSE/FARP/FARPR/FDISC), which are associated with the @vport by | |
5763 | * invoking the lpfc_sli_issue_abort_iotag() routine. | |
5764 | **/ | |
dea3101e | 5765 | void |
2e0fef85 | 5766 | lpfc_els_timeout_handler(struct lpfc_vport *vport) |
dea3101e | 5767 | { |
2e0fef85 | 5768 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 5769 | struct lpfc_sli_ring *pring; |
5770 | struct lpfc_iocbq *tmp_iocb, *piocb; | |
5771 | IOCB_t *cmd = NULL; | |
5772 | struct lpfc_dmabuf *pcmd; | |
2e0fef85 | 5773 | uint32_t els_command = 0; |
dea3101e | 5774 | uint32_t timeout; |
2e0fef85 | 5775 | uint32_t remote_ID = 0xffffffff; |
2a9bf3d0 JS |
5776 | LIST_HEAD(txcmplq_completions); |
5777 | LIST_HEAD(abort_list); | |
5778 | ||
dea3101e | 5779 | |
dea3101e | 5780 | timeout = (uint32_t)(phba->fc_ratov << 1); |
5781 | ||
5782 | pring = &phba->sli.ring[LPFC_ELS_RING]; | |
dea3101e | 5783 | |
2a9bf3d0 JS |
5784 | spin_lock_irq(&phba->hbalock); |
5785 | list_splice_init(&pring->txcmplq, &txcmplq_completions); | |
5786 | spin_unlock_irq(&phba->hbalock); | |
5787 | ||
5788 | list_for_each_entry_safe(piocb, tmp_iocb, &txcmplq_completions, list) { | |
dea3101e | 5789 | cmd = &piocb->iocb; |
5790 | ||
2e0fef85 JS |
5791 | if ((piocb->iocb_flag & LPFC_IO_LIBDFC) != 0 || |
5792 | piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN || | |
5793 | piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN) | |
dea3101e | 5794 | continue; |
2e0fef85 JS |
5795 | |
5796 | if (piocb->vport != vport) | |
5797 | continue; | |
5798 | ||
dea3101e | 5799 | pcmd = (struct lpfc_dmabuf *) piocb->context2; |
2e0fef85 JS |
5800 | if (pcmd) |
5801 | els_command = *(uint32_t *) (pcmd->virt); | |
dea3101e | 5802 | |
92d7f7b0 JS |
5803 | if (els_command == ELS_CMD_FARP || |
5804 | els_command == ELS_CMD_FARPR || | |
5805 | els_command == ELS_CMD_FDISC) | |
5806 | continue; | |
5807 | ||
dea3101e | 5808 | if (piocb->drvrTimeout > 0) { |
92d7f7b0 | 5809 | if (piocb->drvrTimeout >= timeout) |
dea3101e | 5810 | piocb->drvrTimeout -= timeout; |
92d7f7b0 | 5811 | else |
dea3101e | 5812 | piocb->drvrTimeout = 0; |
dea3101e | 5813 | continue; |
5814 | } | |
5815 | ||
2e0fef85 JS |
5816 | remote_ID = 0xffffffff; |
5817 | if (cmd->ulpCommand != CMD_GEN_REQUEST64_CR) | |
dea3101e | 5818 | remote_ID = cmd->un.elsreq64.remoteID; |
2e0fef85 JS |
5819 | else { |
5820 | struct lpfc_nodelist *ndlp; | |
5821 | ndlp = __lpfc_findnode_rpi(vport, cmd->ulpContext); | |
58da1ffb | 5822 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) |
2e0fef85 | 5823 | remote_ID = ndlp->nlp_DID; |
dea3101e | 5824 | } |
2a9bf3d0 JS |
5825 | list_add_tail(&piocb->dlist, &abort_list); |
5826 | } | |
5827 | spin_lock_irq(&phba->hbalock); | |
5828 | list_splice(&txcmplq_completions, &pring->txcmplq); | |
5829 | spin_unlock_irq(&phba->hbalock); | |
5830 | ||
5831 | list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) { | |
e8b62011 | 5832 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
2a9bf3d0 JS |
5833 | "0127 ELS timeout Data: x%x x%x x%x " |
5834 | "x%x\n", els_command, | |
5835 | remote_ID, cmd->ulpCommand, cmd->ulpIoTag); | |
5836 | spin_lock_irq(&phba->hbalock); | |
5837 | list_del_init(&piocb->dlist); | |
07951076 | 5838 | lpfc_sli_issue_abort_iotag(phba, pring, piocb); |
2a9bf3d0 | 5839 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 5840 | } |
5a0e326d | 5841 | |
2e0fef85 JS |
5842 | if (phba->sli.ring[LPFC_ELS_RING].txcmplq_cnt) |
5843 | mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout); | |
dea3101e | 5844 | } |
5845 | ||
e59058c4 | 5846 | /** |
3621a710 | 5847 | * lpfc_els_flush_cmd - Clean up the outstanding els commands to a vport |
e59058c4 JS |
5848 | * @vport: pointer to a host virtual N_Port data structure. |
5849 | * | |
5850 | * This routine is used to clean up all the outstanding ELS commands on a | |
5851 | * @vport. It first aborts the @vport by invoking lpfc_fabric_abort_vport() | |
5852 | * routine. After that, it walks the ELS transmit queue to remove all the | |
5853 | * IOCBs with the @vport other than the QUE_RING and ABORT/CLOSE IOCBs. For | |
5854 | * the IOCBs with a non-NULL completion callback function, the callback | |
5855 | * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and | |
5856 | * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs with a NULL completion | |
5857 | * callback function, the IOCB will simply be released. Finally, it walks | |
5858 | * the ELS transmit completion queue to issue an abort IOCB to any transmit | |
5859 | * completion queue IOCB that is associated with the @vport and is not | |
5860 | * an IOCB from libdfc (i.e., the management plane IOCBs that are not | |
5861 | * part of the discovery state machine) out to HBA by invoking the | |
5862 | * lpfc_sli_issue_abort_iotag() routine. Note that this function issues the | |
5863 | * abort IOCB to any transmit completion queueed IOCB, it does not guarantee | |
5864 | * the IOCBs are aborted when this function returns. | |
5865 | **/ | |
dea3101e | 5866 | void |
2e0fef85 | 5867 | lpfc_els_flush_cmd(struct lpfc_vport *vport) |
dea3101e | 5868 | { |
2534ba75 | 5869 | LIST_HEAD(completions); |
2e0fef85 | 5870 | struct lpfc_hba *phba = vport->phba; |
329f9bc7 | 5871 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; |
dea3101e | 5872 | struct lpfc_iocbq *tmp_iocb, *piocb; |
5873 | IOCB_t *cmd = NULL; | |
92d7f7b0 JS |
5874 | |
5875 | lpfc_fabric_abort_vport(vport); | |
dea3101e | 5876 | |
2e0fef85 | 5877 | spin_lock_irq(&phba->hbalock); |
dea3101e | 5878 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) { |
5879 | cmd = &piocb->iocb; | |
5880 | ||
5881 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) { | |
5882 | continue; | |
5883 | } | |
5884 | ||
5885 | /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */ | |
329f9bc7 JS |
5886 | if (cmd->ulpCommand == CMD_QUE_RING_BUF_CN || |
5887 | cmd->ulpCommand == CMD_QUE_RING_BUF64_CN || | |
5888 | cmd->ulpCommand == CMD_CLOSE_XRI_CN || | |
5889 | cmd->ulpCommand == CMD_ABORT_XRI_CN) | |
dea3101e | 5890 | continue; |
dea3101e | 5891 | |
2e0fef85 JS |
5892 | if (piocb->vport != vport) |
5893 | continue; | |
5894 | ||
2534ba75 | 5895 | list_move_tail(&piocb->list, &completions); |
1dcb58e5 | 5896 | pring->txq_cnt--; |
dea3101e | 5897 | } |
5898 | ||
5899 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { | |
dea3101e | 5900 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) { |
5901 | continue; | |
5902 | } | |
dea3101e | 5903 | |
2e0fef85 JS |
5904 | if (piocb->vport != vport) |
5905 | continue; | |
5906 | ||
07951076 | 5907 | lpfc_sli_issue_abort_iotag(phba, pring, piocb); |
dea3101e | 5908 | } |
2e0fef85 | 5909 | spin_unlock_irq(&phba->hbalock); |
2534ba75 | 5910 | |
a257bf90 JS |
5911 | /* Cancell all the IOCBs from the completions list */ |
5912 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
5913 | IOERR_SLI_ABORTED); | |
2534ba75 | 5914 | |
dea3101e | 5915 | return; |
5916 | } | |
5917 | ||
e59058c4 | 5918 | /** |
3621a710 | 5919 | * lpfc_els_flush_all_cmd - Clean up all the outstanding els commands to a HBA |
e59058c4 JS |
5920 | * @phba: pointer to lpfc hba data structure. |
5921 | * | |
5922 | * This routine is used to clean up all the outstanding ELS commands on a | |
5923 | * @phba. It first aborts the @phba by invoking the lpfc_fabric_abort_hba() | |
5924 | * routine. After that, it walks the ELS transmit queue to remove all the | |
5925 | * IOCBs to the @phba other than the QUE_RING and ABORT/CLOSE IOCBs. For | |
5926 | * the IOCBs with the completion callback function associated, the callback | |
5927 | * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and | |
5928 | * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs without the completion | |
5929 | * callback function associated, the IOCB will simply be released. Finally, | |
5930 | * it walks the ELS transmit completion queue to issue an abort IOCB to any | |
5931 | * transmit completion queue IOCB that is not an IOCB from libdfc (i.e., the | |
5932 | * management plane IOCBs that are not part of the discovery state machine) | |
5933 | * out to HBA by invoking the lpfc_sli_issue_abort_iotag() routine. | |
5934 | **/ | |
549e55cd JS |
5935 | void |
5936 | lpfc_els_flush_all_cmd(struct lpfc_hba *phba) | |
5937 | { | |
5938 | LIST_HEAD(completions); | |
5939 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; | |
5940 | struct lpfc_iocbq *tmp_iocb, *piocb; | |
5941 | IOCB_t *cmd = NULL; | |
5942 | ||
5943 | lpfc_fabric_abort_hba(phba); | |
5944 | spin_lock_irq(&phba->hbalock); | |
5945 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) { | |
5946 | cmd = &piocb->iocb; | |
5947 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) | |
5948 | continue; | |
5949 | /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */ | |
5950 | if (cmd->ulpCommand == CMD_QUE_RING_BUF_CN || | |
5951 | cmd->ulpCommand == CMD_QUE_RING_BUF64_CN || | |
5952 | cmd->ulpCommand == CMD_CLOSE_XRI_CN || | |
5953 | cmd->ulpCommand == CMD_ABORT_XRI_CN) | |
5954 | continue; | |
5955 | list_move_tail(&piocb->list, &completions); | |
5956 | pring->txq_cnt--; | |
5957 | } | |
5958 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { | |
5959 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) | |
5960 | continue; | |
5961 | lpfc_sli_issue_abort_iotag(phba, pring, piocb); | |
5962 | } | |
5963 | spin_unlock_irq(&phba->hbalock); | |
a257bf90 JS |
5964 | |
5965 | /* Cancel all the IOCBs from the completions list */ | |
5966 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
5967 | IOERR_SLI_ABORTED); | |
5968 | ||
549e55cd JS |
5969 | return; |
5970 | } | |
5971 | ||
ea2151b4 | 5972 | /** |
3621a710 | 5973 | * lpfc_send_els_failure_event - Posts an ELS command failure event |
ea2151b4 JS |
5974 | * @phba: Pointer to hba context object. |
5975 | * @cmdiocbp: Pointer to command iocb which reported error. | |
5976 | * @rspiocbp: Pointer to response iocb which reported error. | |
5977 | * | |
5978 | * This function sends an event when there is an ELS command | |
5979 | * failure. | |
5980 | **/ | |
5981 | void | |
5982 | lpfc_send_els_failure_event(struct lpfc_hba *phba, | |
5983 | struct lpfc_iocbq *cmdiocbp, | |
5984 | struct lpfc_iocbq *rspiocbp) | |
5985 | { | |
5986 | struct lpfc_vport *vport = cmdiocbp->vport; | |
5987 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
5988 | struct lpfc_lsrjt_event lsrjt_event; | |
5989 | struct lpfc_fabric_event_header fabric_event; | |
5990 | struct ls_rjt stat; | |
5991 | struct lpfc_nodelist *ndlp; | |
5992 | uint32_t *pcmd; | |
5993 | ||
5994 | ndlp = cmdiocbp->context1; | |
5995 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) | |
5996 | return; | |
5997 | ||
5998 | if (rspiocbp->iocb.ulpStatus == IOSTAT_LS_RJT) { | |
5999 | lsrjt_event.header.event_type = FC_REG_ELS_EVENT; | |
6000 | lsrjt_event.header.subcategory = LPFC_EVENT_LSRJT_RCV; | |
6001 | memcpy(lsrjt_event.header.wwpn, &ndlp->nlp_portname, | |
6002 | sizeof(struct lpfc_name)); | |
6003 | memcpy(lsrjt_event.header.wwnn, &ndlp->nlp_nodename, | |
6004 | sizeof(struct lpfc_name)); | |
6005 | pcmd = (uint32_t *) (((struct lpfc_dmabuf *) | |
6006 | cmdiocbp->context2)->virt); | |
49198b37 | 6007 | lsrjt_event.command = (pcmd != NULL) ? *pcmd : 0; |
ea2151b4 JS |
6008 | stat.un.lsRjtError = be32_to_cpu(rspiocbp->iocb.un.ulpWord[4]); |
6009 | lsrjt_event.reason_code = stat.un.b.lsRjtRsnCode; | |
6010 | lsrjt_event.explanation = stat.un.b.lsRjtRsnCodeExp; | |
6011 | fc_host_post_vendor_event(shost, | |
6012 | fc_get_event_number(), | |
6013 | sizeof(lsrjt_event), | |
6014 | (char *)&lsrjt_event, | |
ddcc50f0 | 6015 | LPFC_NL_VENDOR_ID); |
ea2151b4 JS |
6016 | return; |
6017 | } | |
6018 | if ((rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY) || | |
6019 | (rspiocbp->iocb.ulpStatus == IOSTAT_FABRIC_BSY)) { | |
6020 | fabric_event.event_type = FC_REG_FABRIC_EVENT; | |
6021 | if (rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY) | |
6022 | fabric_event.subcategory = LPFC_EVENT_PORT_BUSY; | |
6023 | else | |
6024 | fabric_event.subcategory = LPFC_EVENT_FABRIC_BUSY; | |
6025 | memcpy(fabric_event.wwpn, &ndlp->nlp_portname, | |
6026 | sizeof(struct lpfc_name)); | |
6027 | memcpy(fabric_event.wwnn, &ndlp->nlp_nodename, | |
6028 | sizeof(struct lpfc_name)); | |
6029 | fc_host_post_vendor_event(shost, | |
6030 | fc_get_event_number(), | |
6031 | sizeof(fabric_event), | |
6032 | (char *)&fabric_event, | |
ddcc50f0 | 6033 | LPFC_NL_VENDOR_ID); |
ea2151b4 JS |
6034 | return; |
6035 | } | |
6036 | ||
6037 | } | |
6038 | ||
6039 | /** | |
3621a710 | 6040 | * lpfc_send_els_event - Posts unsolicited els event |
ea2151b4 JS |
6041 | * @vport: Pointer to vport object. |
6042 | * @ndlp: Pointer FC node object. | |
6043 | * @cmd: ELS command code. | |
6044 | * | |
6045 | * This function posts an event when there is an incoming | |
6046 | * unsolicited ELS command. | |
6047 | **/ | |
6048 | static void | |
6049 | lpfc_send_els_event(struct lpfc_vport *vport, | |
6050 | struct lpfc_nodelist *ndlp, | |
ddcc50f0 | 6051 | uint32_t *payload) |
ea2151b4 | 6052 | { |
ddcc50f0 JS |
6053 | struct lpfc_els_event_header *els_data = NULL; |
6054 | struct lpfc_logo_event *logo_data = NULL; | |
ea2151b4 JS |
6055 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
6056 | ||
ddcc50f0 JS |
6057 | if (*payload == ELS_CMD_LOGO) { |
6058 | logo_data = kmalloc(sizeof(struct lpfc_logo_event), GFP_KERNEL); | |
6059 | if (!logo_data) { | |
6060 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
6061 | "0148 Failed to allocate memory " | |
6062 | "for LOGO event\n"); | |
6063 | return; | |
6064 | } | |
6065 | els_data = &logo_data->header; | |
6066 | } else { | |
6067 | els_data = kmalloc(sizeof(struct lpfc_els_event_header), | |
6068 | GFP_KERNEL); | |
6069 | if (!els_data) { | |
6070 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
6071 | "0149 Failed to allocate memory " | |
6072 | "for ELS event\n"); | |
6073 | return; | |
6074 | } | |
6075 | } | |
6076 | els_data->event_type = FC_REG_ELS_EVENT; | |
6077 | switch (*payload) { | |
ea2151b4 | 6078 | case ELS_CMD_PLOGI: |
ddcc50f0 | 6079 | els_data->subcategory = LPFC_EVENT_PLOGI_RCV; |
ea2151b4 JS |
6080 | break; |
6081 | case ELS_CMD_PRLO: | |
ddcc50f0 | 6082 | els_data->subcategory = LPFC_EVENT_PRLO_RCV; |
ea2151b4 JS |
6083 | break; |
6084 | case ELS_CMD_ADISC: | |
ddcc50f0 JS |
6085 | els_data->subcategory = LPFC_EVENT_ADISC_RCV; |
6086 | break; | |
6087 | case ELS_CMD_LOGO: | |
6088 | els_data->subcategory = LPFC_EVENT_LOGO_RCV; | |
6089 | /* Copy the WWPN in the LOGO payload */ | |
6090 | memcpy(logo_data->logo_wwpn, &payload[2], | |
6091 | sizeof(struct lpfc_name)); | |
ea2151b4 JS |
6092 | break; |
6093 | default: | |
e916141c | 6094 | kfree(els_data); |
ea2151b4 JS |
6095 | return; |
6096 | } | |
ddcc50f0 JS |
6097 | memcpy(els_data->wwpn, &ndlp->nlp_portname, sizeof(struct lpfc_name)); |
6098 | memcpy(els_data->wwnn, &ndlp->nlp_nodename, sizeof(struct lpfc_name)); | |
6099 | if (*payload == ELS_CMD_LOGO) { | |
6100 | fc_host_post_vendor_event(shost, | |
6101 | fc_get_event_number(), | |
6102 | sizeof(struct lpfc_logo_event), | |
6103 | (char *)logo_data, | |
6104 | LPFC_NL_VENDOR_ID); | |
6105 | kfree(logo_data); | |
6106 | } else { | |
6107 | fc_host_post_vendor_event(shost, | |
6108 | fc_get_event_number(), | |
6109 | sizeof(struct lpfc_els_event_header), | |
6110 | (char *)els_data, | |
6111 | LPFC_NL_VENDOR_ID); | |
6112 | kfree(els_data); | |
6113 | } | |
ea2151b4 JS |
6114 | |
6115 | return; | |
6116 | } | |
6117 | ||
6118 | ||
e59058c4 | 6119 | /** |
3621a710 | 6120 | * lpfc_els_unsol_buffer - Process an unsolicited event data buffer |
e59058c4 JS |
6121 | * @phba: pointer to lpfc hba data structure. |
6122 | * @pring: pointer to a SLI ring. | |
6123 | * @vport: pointer to a host virtual N_Port data structure. | |
6124 | * @elsiocb: pointer to lpfc els command iocb data structure. | |
6125 | * | |
6126 | * This routine is used for processing the IOCB associated with a unsolicited | |
6127 | * event. It first determines whether there is an existing ndlp that matches | |
6128 | * the DID from the unsolicited IOCB. If not, it will create a new one with | |
6129 | * the DID from the unsolicited IOCB. The ELS command from the unsolicited | |
6130 | * IOCB is then used to invoke the proper routine and to set up proper state | |
6131 | * of the discovery state machine. | |
6132 | **/ | |
ed957684 JS |
6133 | static void |
6134 | lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
92d7f7b0 | 6135 | struct lpfc_vport *vport, struct lpfc_iocbq *elsiocb) |
dea3101e | 6136 | { |
87af33fe | 6137 | struct Scsi_Host *shost; |
dea3101e | 6138 | struct lpfc_nodelist *ndlp; |
dea3101e | 6139 | struct ls_rjt stat; |
92d7f7b0 | 6140 | uint32_t *payload; |
2e0fef85 | 6141 | uint32_t cmd, did, newnode, rjt_err = 0; |
ed957684 | 6142 | IOCB_t *icmd = &elsiocb->iocb; |
dea3101e | 6143 | |
e47c9093 | 6144 | if (!vport || !(elsiocb->context2)) |
dea3101e | 6145 | goto dropit; |
2e0fef85 | 6146 | |
dea3101e | 6147 | newnode = 0; |
92d7f7b0 JS |
6148 | payload = ((struct lpfc_dmabuf *)elsiocb->context2)->virt; |
6149 | cmd = *payload; | |
ed957684 | 6150 | if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) == 0) |
495a714c | 6151 | lpfc_post_buffer(phba, pring, 1); |
dea3101e | 6152 | |
858c9f6c JS |
6153 | did = icmd->un.rcvels.remoteID; |
6154 | if (icmd->ulpStatus) { | |
6155 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, | |
6156 | "RCV Unsol ELS: status:x%x/x%x did:x%x", | |
6157 | icmd->ulpStatus, icmd->un.ulpWord[4], did); | |
dea3101e | 6158 | goto dropit; |
858c9f6c | 6159 | } |
dea3101e | 6160 | |
6161 | /* Check to see if link went down during discovery */ | |
ed957684 | 6162 | if (lpfc_els_chk_latt(vport)) |
dea3101e | 6163 | goto dropit; |
dea3101e | 6164 | |
c868595d | 6165 | /* Ignore traffic received during vport shutdown. */ |
92d7f7b0 JS |
6166 | if (vport->load_flag & FC_UNLOADING) |
6167 | goto dropit; | |
6168 | ||
2e0fef85 | 6169 | ndlp = lpfc_findnode_did(vport, did); |
c9f8735b | 6170 | if (!ndlp) { |
dea3101e | 6171 | /* Cannot find existing Fabric ndlp, so allocate a new one */ |
c9f8735b | 6172 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); |
ed957684 | 6173 | if (!ndlp) |
dea3101e | 6174 | goto dropit; |
dea3101e | 6175 | |
2e0fef85 | 6176 | lpfc_nlp_init(vport, ndlp, did); |
98c9ea5c | 6177 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
dea3101e | 6178 | newnode = 1; |
e47c9093 | 6179 | if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) |
dea3101e | 6180 | ndlp->nlp_type |= NLP_FABRIC; |
58da1ffb JS |
6181 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { |
6182 | ndlp = lpfc_enable_node(vport, ndlp, | |
6183 | NLP_STE_UNUSED_NODE); | |
6184 | if (!ndlp) | |
6185 | goto dropit; | |
6186 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); | |
6187 | newnode = 1; | |
6188 | if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) | |
6189 | ndlp->nlp_type |= NLP_FABRIC; | |
6190 | } else if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) { | |
6191 | /* This is similar to the new node path */ | |
6192 | ndlp = lpfc_nlp_get(ndlp); | |
6193 | if (!ndlp) | |
6194 | goto dropit; | |
6195 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); | |
6196 | newnode = 1; | |
87af33fe | 6197 | } |
dea3101e | 6198 | |
6199 | phba->fc_stat.elsRcvFrame++; | |
e47c9093 | 6200 | |
329f9bc7 | 6201 | elsiocb->context1 = lpfc_nlp_get(ndlp); |
2e0fef85 | 6202 | elsiocb->vport = vport; |
dea3101e | 6203 | |
6204 | if ((cmd & ELS_CMD_MASK) == ELS_CMD_RSCN) { | |
6205 | cmd &= ELS_CMD_MASK; | |
6206 | } | |
6207 | /* ELS command <elsCmd> received from NPORT <did> */ | |
e8b62011 JS |
6208 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
6209 | "0112 ELS command x%x received from NPORT x%x " | |
6210 | "Data: x%x\n", cmd, did, vport->port_state); | |
dea3101e | 6211 | switch (cmd) { |
6212 | case ELS_CMD_PLOGI: | |
858c9f6c JS |
6213 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6214 | "RCV PLOGI: did:x%x/ste:x%x flg:x%x", | |
6215 | did, vport->port_state, ndlp->nlp_flag); | |
6216 | ||
dea3101e | 6217 | phba->fc_stat.elsRcvPLOGI++; |
858c9f6c JS |
6218 | ndlp = lpfc_plogi_confirm_nport(phba, payload, ndlp); |
6219 | ||
ddcc50f0 | 6220 | lpfc_send_els_event(vport, ndlp, payload); |
858c9f6c | 6221 | if (vport->port_state < LPFC_DISC_AUTH) { |
1b32f6aa JS |
6222 | if (!(phba->pport->fc_flag & FC_PT2PT) || |
6223 | (phba->pport->fc_flag & FC_PT2PT_PLOGI)) { | |
6224 | rjt_err = LSRJT_UNABLE_TPC; | |
6225 | break; | |
6226 | } | |
6227 | /* We get here, and drop thru, if we are PT2PT with | |
6228 | * another NPort and the other side has initiated | |
6229 | * the PLOGI before responding to our FLOGI. | |
6230 | */ | |
dea3101e | 6231 | } |
87af33fe JS |
6232 | |
6233 | shost = lpfc_shost_from_vport(vport); | |
6234 | spin_lock_irq(shost->host_lock); | |
6235 | ndlp->nlp_flag &= ~NLP_TARGET_REMOVE; | |
6236 | spin_unlock_irq(shost->host_lock); | |
6237 | ||
2e0fef85 JS |
6238 | lpfc_disc_state_machine(vport, ndlp, elsiocb, |
6239 | NLP_EVT_RCV_PLOGI); | |
858c9f6c | 6240 | |
dea3101e | 6241 | break; |
6242 | case ELS_CMD_FLOGI: | |
858c9f6c JS |
6243 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6244 | "RCV FLOGI: did:x%x/ste:x%x flg:x%x", | |
6245 | did, vport->port_state, ndlp->nlp_flag); | |
6246 | ||
dea3101e | 6247 | phba->fc_stat.elsRcvFLOGI++; |
51ef4c26 | 6248 | lpfc_els_rcv_flogi(vport, elsiocb, ndlp); |
87af33fe | 6249 | if (newnode) |
98c9ea5c | 6250 | lpfc_nlp_put(ndlp); |
dea3101e | 6251 | break; |
6252 | case ELS_CMD_LOGO: | |
858c9f6c JS |
6253 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6254 | "RCV LOGO: did:x%x/ste:x%x flg:x%x", | |
6255 | did, vport->port_state, ndlp->nlp_flag); | |
6256 | ||
dea3101e | 6257 | phba->fc_stat.elsRcvLOGO++; |
ddcc50f0 | 6258 | lpfc_send_els_event(vport, ndlp, payload); |
2e0fef85 | 6259 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 6260 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e | 6261 | break; |
6262 | } | |
2e0fef85 | 6263 | lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_LOGO); |
dea3101e | 6264 | break; |
6265 | case ELS_CMD_PRLO: | |
858c9f6c JS |
6266 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6267 | "RCV PRLO: did:x%x/ste:x%x flg:x%x", | |
6268 | did, vport->port_state, ndlp->nlp_flag); | |
6269 | ||
dea3101e | 6270 | phba->fc_stat.elsRcvPRLO++; |
ddcc50f0 | 6271 | lpfc_send_els_event(vport, ndlp, payload); |
2e0fef85 | 6272 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 6273 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e | 6274 | break; |
6275 | } | |
2e0fef85 | 6276 | lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLO); |
dea3101e | 6277 | break; |
6278 | case ELS_CMD_RSCN: | |
6279 | phba->fc_stat.elsRcvRSCN++; | |
51ef4c26 | 6280 | lpfc_els_rcv_rscn(vport, elsiocb, ndlp); |
87af33fe | 6281 | if (newnode) |
98c9ea5c | 6282 | lpfc_nlp_put(ndlp); |
dea3101e | 6283 | break; |
6284 | case ELS_CMD_ADISC: | |
858c9f6c JS |
6285 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6286 | "RCV ADISC: did:x%x/ste:x%x flg:x%x", | |
6287 | did, vport->port_state, ndlp->nlp_flag); | |
6288 | ||
ddcc50f0 | 6289 | lpfc_send_els_event(vport, ndlp, payload); |
dea3101e | 6290 | phba->fc_stat.elsRcvADISC++; |
2e0fef85 | 6291 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 6292 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e | 6293 | break; |
6294 | } | |
2e0fef85 JS |
6295 | lpfc_disc_state_machine(vport, ndlp, elsiocb, |
6296 | NLP_EVT_RCV_ADISC); | |
dea3101e | 6297 | break; |
6298 | case ELS_CMD_PDISC: | |
858c9f6c JS |
6299 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6300 | "RCV PDISC: did:x%x/ste:x%x flg:x%x", | |
6301 | did, vport->port_state, ndlp->nlp_flag); | |
6302 | ||
dea3101e | 6303 | phba->fc_stat.elsRcvPDISC++; |
2e0fef85 | 6304 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 6305 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e | 6306 | break; |
6307 | } | |
2e0fef85 JS |
6308 | lpfc_disc_state_machine(vport, ndlp, elsiocb, |
6309 | NLP_EVT_RCV_PDISC); | |
dea3101e | 6310 | break; |
6311 | case ELS_CMD_FARPR: | |
858c9f6c JS |
6312 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6313 | "RCV FARPR: did:x%x/ste:x%x flg:x%x", | |
6314 | did, vport->port_state, ndlp->nlp_flag); | |
6315 | ||
dea3101e | 6316 | phba->fc_stat.elsRcvFARPR++; |
2e0fef85 | 6317 | lpfc_els_rcv_farpr(vport, elsiocb, ndlp); |
dea3101e | 6318 | break; |
6319 | case ELS_CMD_FARP: | |
858c9f6c JS |
6320 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6321 | "RCV FARP: did:x%x/ste:x%x flg:x%x", | |
6322 | did, vport->port_state, ndlp->nlp_flag); | |
6323 | ||
dea3101e | 6324 | phba->fc_stat.elsRcvFARP++; |
2e0fef85 | 6325 | lpfc_els_rcv_farp(vport, elsiocb, ndlp); |
dea3101e | 6326 | break; |
6327 | case ELS_CMD_FAN: | |
858c9f6c JS |
6328 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6329 | "RCV FAN: did:x%x/ste:x%x flg:x%x", | |
6330 | did, vport->port_state, ndlp->nlp_flag); | |
6331 | ||
dea3101e | 6332 | phba->fc_stat.elsRcvFAN++; |
2e0fef85 | 6333 | lpfc_els_rcv_fan(vport, elsiocb, ndlp); |
dea3101e | 6334 | break; |
dea3101e | 6335 | case ELS_CMD_PRLI: |
858c9f6c JS |
6336 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6337 | "RCV PRLI: did:x%x/ste:x%x flg:x%x", | |
6338 | did, vport->port_state, ndlp->nlp_flag); | |
6339 | ||
dea3101e | 6340 | phba->fc_stat.elsRcvPRLI++; |
2e0fef85 | 6341 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 6342 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e | 6343 | break; |
6344 | } | |
2e0fef85 | 6345 | lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLI); |
dea3101e | 6346 | break; |
7bb3b137 | 6347 | case ELS_CMD_LIRR: |
858c9f6c JS |
6348 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6349 | "RCV LIRR: did:x%x/ste:x%x flg:x%x", | |
6350 | did, vport->port_state, ndlp->nlp_flag); | |
6351 | ||
7bb3b137 | 6352 | phba->fc_stat.elsRcvLIRR++; |
2e0fef85 | 6353 | lpfc_els_rcv_lirr(vport, elsiocb, ndlp); |
87af33fe | 6354 | if (newnode) |
98c9ea5c | 6355 | lpfc_nlp_put(ndlp); |
7bb3b137 | 6356 | break; |
12265f68 JS |
6357 | case ELS_CMD_RLS: |
6358 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, | |
6359 | "RCV RLS: did:x%x/ste:x%x flg:x%x", | |
6360 | did, vport->port_state, ndlp->nlp_flag); | |
6361 | ||
6362 | phba->fc_stat.elsRcvRLS++; | |
6363 | lpfc_els_rcv_rls(vport, elsiocb, ndlp); | |
6364 | if (newnode) | |
6365 | lpfc_nlp_put(ndlp); | |
6366 | break; | |
7bb3b137 | 6367 | case ELS_CMD_RPS: |
858c9f6c JS |
6368 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6369 | "RCV RPS: did:x%x/ste:x%x flg:x%x", | |
6370 | did, vport->port_state, ndlp->nlp_flag); | |
6371 | ||
7bb3b137 | 6372 | phba->fc_stat.elsRcvRPS++; |
2e0fef85 | 6373 | lpfc_els_rcv_rps(vport, elsiocb, ndlp); |
87af33fe | 6374 | if (newnode) |
98c9ea5c | 6375 | lpfc_nlp_put(ndlp); |
7bb3b137 JW |
6376 | break; |
6377 | case ELS_CMD_RPL: | |
858c9f6c JS |
6378 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6379 | "RCV RPL: did:x%x/ste:x%x flg:x%x", | |
6380 | did, vport->port_state, ndlp->nlp_flag); | |
6381 | ||
7bb3b137 | 6382 | phba->fc_stat.elsRcvRPL++; |
2e0fef85 | 6383 | lpfc_els_rcv_rpl(vport, elsiocb, ndlp); |
87af33fe | 6384 | if (newnode) |
98c9ea5c | 6385 | lpfc_nlp_put(ndlp); |
7bb3b137 | 6386 | break; |
dea3101e | 6387 | case ELS_CMD_RNID: |
858c9f6c JS |
6388 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6389 | "RCV RNID: did:x%x/ste:x%x flg:x%x", | |
6390 | did, vport->port_state, ndlp->nlp_flag); | |
6391 | ||
dea3101e | 6392 | phba->fc_stat.elsRcvRNID++; |
2e0fef85 | 6393 | lpfc_els_rcv_rnid(vport, elsiocb, ndlp); |
87af33fe | 6394 | if (newnode) |
98c9ea5c | 6395 | lpfc_nlp_put(ndlp); |
dea3101e | 6396 | break; |
12265f68 JS |
6397 | case ELS_CMD_RTV: |
6398 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, | |
6399 | "RCV RTV: did:x%x/ste:x%x flg:x%x", | |
6400 | did, vport->port_state, ndlp->nlp_flag); | |
6401 | phba->fc_stat.elsRcvRTV++; | |
6402 | lpfc_els_rcv_rtv(vport, elsiocb, ndlp); | |
6403 | if (newnode) | |
6404 | lpfc_nlp_put(ndlp); | |
6405 | break; | |
5ffc266e JS |
6406 | case ELS_CMD_RRQ: |
6407 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, | |
6408 | "RCV RRQ: did:x%x/ste:x%x flg:x%x", | |
6409 | did, vport->port_state, ndlp->nlp_flag); | |
6410 | ||
6411 | phba->fc_stat.elsRcvRRQ++; | |
6412 | lpfc_els_rcv_rrq(vport, elsiocb, ndlp); | |
6413 | if (newnode) | |
6414 | lpfc_nlp_put(ndlp); | |
6415 | break; | |
12265f68 JS |
6416 | case ELS_CMD_ECHO: |
6417 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, | |
6418 | "RCV ECHO: did:x%x/ste:x%x flg:x%x", | |
6419 | did, vport->port_state, ndlp->nlp_flag); | |
6420 | ||
6421 | phba->fc_stat.elsRcvECHO++; | |
6422 | lpfc_els_rcv_echo(vport, elsiocb, ndlp); | |
6423 | if (newnode) | |
6424 | lpfc_nlp_put(ndlp); | |
6425 | break; | |
dea3101e | 6426 | default: |
858c9f6c JS |
6427 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6428 | "RCV ELS cmd: cmd:x%x did:x%x/ste:x%x", | |
6429 | cmd, did, vport->port_state); | |
6430 | ||
dea3101e | 6431 | /* Unsupported ELS command, reject */ |
63e801ce | 6432 | rjt_err = LSRJT_CMD_UNSUPPORTED; |
dea3101e | 6433 | |
6434 | /* Unknown ELS command <elsCmd> received from NPORT <did> */ | |
e8b62011 JS |
6435 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
6436 | "0115 Unknown ELS command x%x " | |
6437 | "received from NPORT x%x\n", cmd, did); | |
87af33fe | 6438 | if (newnode) |
98c9ea5c | 6439 | lpfc_nlp_put(ndlp); |
dea3101e | 6440 | break; |
6441 | } | |
6442 | ||
6443 | /* check if need to LS_RJT received ELS cmd */ | |
6444 | if (rjt_err) { | |
92d7f7b0 | 6445 | memset(&stat, 0, sizeof(stat)); |
858c9f6c | 6446 | stat.un.b.lsRjtRsnCode = rjt_err; |
1f679caf | 6447 | stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; |
858c9f6c JS |
6448 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, elsiocb, ndlp, |
6449 | NULL); | |
dea3101e | 6450 | } |
6451 | ||
d7c255b2 JS |
6452 | lpfc_nlp_put(elsiocb->context1); |
6453 | elsiocb->context1 = NULL; | |
ed957684 JS |
6454 | return; |
6455 | ||
6456 | dropit: | |
98c9ea5c | 6457 | if (vport && !(vport->load_flag & FC_UNLOADING)) |
6fb120a7 JS |
6458 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
6459 | "0111 Dropping received ELS cmd " | |
ed957684 | 6460 | "Data: x%x x%x x%x\n", |
6fb120a7 | 6461 | icmd->ulpStatus, icmd->un.ulpWord[4], icmd->ulpTimeout); |
ed957684 JS |
6462 | phba->fc_stat.elsRcvDrop++; |
6463 | } | |
6464 | ||
e59058c4 | 6465 | /** |
3621a710 | 6466 | * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier |
e59058c4 JS |
6467 | * @phba: pointer to lpfc hba data structure. |
6468 | * @vpi: host virtual N_Port identifier. | |
6469 | * | |
6470 | * This routine finds a vport on a HBA (referred by @phba) through a | |
6471 | * @vpi. The function walks the HBA's vport list and returns the address | |
6472 | * of the vport with the matching @vpi. | |
6473 | * | |
6474 | * Return code | |
6475 | * NULL - No vport with the matching @vpi found | |
6476 | * Otherwise - Address to the vport with the matching @vpi. | |
6477 | **/ | |
6669f9bb | 6478 | struct lpfc_vport * |
92d7f7b0 JS |
6479 | lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi) |
6480 | { | |
6481 | struct lpfc_vport *vport; | |
549e55cd | 6482 | unsigned long flags; |
92d7f7b0 | 6483 | |
549e55cd | 6484 | spin_lock_irqsave(&phba->hbalock, flags); |
92d7f7b0 | 6485 | list_for_each_entry(vport, &phba->port_list, listentry) { |
549e55cd JS |
6486 | if (vport->vpi == vpi) { |
6487 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
92d7f7b0 | 6488 | return vport; |
549e55cd | 6489 | } |
92d7f7b0 | 6490 | } |
549e55cd | 6491 | spin_unlock_irqrestore(&phba->hbalock, flags); |
92d7f7b0 JS |
6492 | return NULL; |
6493 | } | |
ed957684 | 6494 | |
e59058c4 | 6495 | /** |
3621a710 | 6496 | * lpfc_els_unsol_event - Process an unsolicited event from an els sli ring |
e59058c4 JS |
6497 | * @phba: pointer to lpfc hba data structure. |
6498 | * @pring: pointer to a SLI ring. | |
6499 | * @elsiocb: pointer to lpfc els iocb data structure. | |
6500 | * | |
6501 | * This routine is used to process an unsolicited event received from a SLI | |
6502 | * (Service Level Interface) ring. The actual processing of the data buffer | |
6503 | * associated with the unsolicited event is done by invoking the routine | |
6504 | * lpfc_els_unsol_buffer() after properly set up the iocb buffer from the | |
6505 | * SLI ring on which the unsolicited event was received. | |
6506 | **/ | |
ed957684 JS |
6507 | void |
6508 | lpfc_els_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
6509 | struct lpfc_iocbq *elsiocb) | |
6510 | { | |
6511 | struct lpfc_vport *vport = phba->pport; | |
ed957684 | 6512 | IOCB_t *icmd = &elsiocb->iocb; |
ed957684 | 6513 | dma_addr_t paddr; |
92d7f7b0 JS |
6514 | struct lpfc_dmabuf *bdeBuf1 = elsiocb->context2; |
6515 | struct lpfc_dmabuf *bdeBuf2 = elsiocb->context3; | |
6516 | ||
d7c255b2 | 6517 | elsiocb->context1 = NULL; |
92d7f7b0 JS |
6518 | elsiocb->context2 = NULL; |
6519 | elsiocb->context3 = NULL; | |
ed957684 | 6520 | |
92d7f7b0 JS |
6521 | if (icmd->ulpStatus == IOSTAT_NEED_BUFFER) { |
6522 | lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ); | |
6523 | } else if (icmd->ulpStatus == IOSTAT_LOCAL_REJECT && | |
6524 | (icmd->un.ulpWord[4] & 0xff) == IOERR_RCV_BUFFER_WAITING) { | |
ed957684 JS |
6525 | phba->fc_stat.NoRcvBuf++; |
6526 | /* Not enough posted buffers; Try posting more buffers */ | |
92d7f7b0 | 6527 | if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) |
495a714c | 6528 | lpfc_post_buffer(phba, pring, 0); |
ed957684 JS |
6529 | return; |
6530 | } | |
6531 | ||
92d7f7b0 JS |
6532 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && |
6533 | (icmd->ulpCommand == CMD_IOCB_RCV_ELS64_CX || | |
6534 | icmd->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) { | |
6535 | if (icmd->unsli3.rcvsli3.vpi == 0xffff) | |
6536 | vport = phba->pport; | |
6fb120a7 JS |
6537 | else |
6538 | vport = lpfc_find_vport_by_vpid(phba, | |
6539 | icmd->unsli3.rcvsli3.vpi - phba->vpi_base); | |
92d7f7b0 | 6540 | } |
7f5f3d0d JS |
6541 | /* If there are no BDEs associated |
6542 | * with this IOCB, there is nothing to do. | |
6543 | */ | |
ed957684 JS |
6544 | if (icmd->ulpBdeCount == 0) |
6545 | return; | |
6546 | ||
7f5f3d0d JS |
6547 | /* type of ELS cmd is first 32bit word |
6548 | * in packet | |
6549 | */ | |
ed957684 | 6550 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
92d7f7b0 | 6551 | elsiocb->context2 = bdeBuf1; |
ed957684 JS |
6552 | } else { |
6553 | paddr = getPaddr(icmd->un.cont64[0].addrHigh, | |
6554 | icmd->un.cont64[0].addrLow); | |
92d7f7b0 JS |
6555 | elsiocb->context2 = lpfc_sli_ringpostbuf_get(phba, pring, |
6556 | paddr); | |
ed957684 JS |
6557 | } |
6558 | ||
92d7f7b0 JS |
6559 | lpfc_els_unsol_buffer(phba, pring, vport, elsiocb); |
6560 | /* | |
6561 | * The different unsolicited event handlers would tell us | |
6562 | * if they are done with "mp" by setting context2 to NULL. | |
6563 | */ | |
dea3101e | 6564 | if (elsiocb->context2) { |
92d7f7b0 JS |
6565 | lpfc_in_buf_free(phba, (struct lpfc_dmabuf *)elsiocb->context2); |
6566 | elsiocb->context2 = NULL; | |
dea3101e | 6567 | } |
ed957684 JS |
6568 | |
6569 | /* RCV_ELS64_CX provide for 2 BDEs - process 2nd if included */ | |
92d7f7b0 | 6570 | if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) && |
ed957684 | 6571 | icmd->ulpBdeCount == 2) { |
92d7f7b0 JS |
6572 | elsiocb->context2 = bdeBuf2; |
6573 | lpfc_els_unsol_buffer(phba, pring, vport, elsiocb); | |
ed957684 JS |
6574 | /* free mp if we are done with it */ |
6575 | if (elsiocb->context2) { | |
92d7f7b0 JS |
6576 | lpfc_in_buf_free(phba, elsiocb->context2); |
6577 | elsiocb->context2 = NULL; | |
6578 | } | |
6579 | } | |
6580 | } | |
6581 | ||
e59058c4 | 6582 | /** |
3621a710 | 6583 | * lpfc_do_scr_ns_plogi - Issue a plogi to the name server for scr |
e59058c4 JS |
6584 | * @phba: pointer to lpfc hba data structure. |
6585 | * @vport: pointer to a virtual N_Port data structure. | |
6586 | * | |
6587 | * This routine issues a Port Login (PLOGI) to the Name Server with | |
6588 | * State Change Request (SCR) for a @vport. This routine will create an | |
6589 | * ndlp for the Name Server associated to the @vport if such node does | |
6590 | * not already exist. The PLOGI to Name Server is issued by invoking the | |
6591 | * lpfc_issue_els_plogi() routine. If Fabric-Device Management Interface | |
6592 | * (FDMI) is configured to the @vport, a FDMI node will be created and | |
6593 | * the PLOGI to FDMI is issued by invoking lpfc_issue_els_plogi() routine. | |
6594 | **/ | |
92d7f7b0 JS |
6595 | void |
6596 | lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport) | |
6597 | { | |
6598 | struct lpfc_nodelist *ndlp, *ndlp_fdmi; | |
6599 | ||
6600 | ndlp = lpfc_findnode_did(vport, NameServer_DID); | |
6601 | if (!ndlp) { | |
6602 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
6603 | if (!ndlp) { | |
76a95d75 | 6604 | if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { |
92d7f7b0 JS |
6605 | lpfc_disc_start(vport); |
6606 | return; | |
6607 | } | |
6608 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
e8b62011 JS |
6609 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
6610 | "0251 NameServer login: no memory\n"); | |
92d7f7b0 JS |
6611 | return; |
6612 | } | |
6613 | lpfc_nlp_init(vport, ndlp, NameServer_DID); | |
e47c9093 JS |
6614 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { |
6615 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
6616 | if (!ndlp) { | |
76a95d75 | 6617 | if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { |
e47c9093 JS |
6618 | lpfc_disc_start(vport); |
6619 | return; | |
6620 | } | |
6621 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
6622 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
6623 | "0348 NameServer login: node freed\n"); | |
6624 | return; | |
6625 | } | |
92d7f7b0 | 6626 | } |
58da1ffb | 6627 | ndlp->nlp_type |= NLP_FABRIC; |
92d7f7b0 JS |
6628 | |
6629 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); | |
6630 | ||
6631 | if (lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0)) { | |
6632 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
e8b62011 JS |
6633 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
6634 | "0252 Cannot issue NameServer login\n"); | |
92d7f7b0 JS |
6635 | return; |
6636 | } | |
6637 | ||
3de2a653 | 6638 | if (vport->cfg_fdmi_on) { |
63e801ce JS |
6639 | /* If this is the first time, allocate an ndlp and initialize |
6640 | * it. Otherwise, make sure the node is enabled and then do the | |
6641 | * login. | |
6642 | */ | |
6643 | ndlp_fdmi = lpfc_findnode_did(vport, FDMI_DID); | |
6644 | if (!ndlp_fdmi) { | |
6645 | ndlp_fdmi = mempool_alloc(phba->nlp_mem_pool, | |
6646 | GFP_KERNEL); | |
6647 | if (ndlp_fdmi) { | |
6648 | lpfc_nlp_init(vport, ndlp_fdmi, FDMI_DID); | |
6649 | ndlp_fdmi->nlp_type |= NLP_FABRIC; | |
6650 | } else | |
6651 | return; | |
6652 | } | |
6653 | if (!NLP_CHK_NODE_ACT(ndlp_fdmi)) | |
6654 | ndlp_fdmi = lpfc_enable_node(vport, | |
6655 | ndlp_fdmi, | |
6656 | NLP_STE_NPR_NODE); | |
6657 | ||
92d7f7b0 | 6658 | if (ndlp_fdmi) { |
58da1ffb | 6659 | lpfc_nlp_set_state(vport, ndlp_fdmi, |
63e801ce JS |
6660 | NLP_STE_PLOGI_ISSUE); |
6661 | lpfc_issue_els_plogi(vport, ndlp_fdmi->nlp_DID, 0); | |
92d7f7b0 JS |
6662 | } |
6663 | } | |
92d7f7b0 JS |
6664 | } |
6665 | ||
e59058c4 | 6666 | /** |
3621a710 | 6667 | * lpfc_cmpl_reg_new_vport - Completion callback function to register new vport |
e59058c4 JS |
6668 | * @phba: pointer to lpfc hba data structure. |
6669 | * @pmb: pointer to the driver internal queue element for mailbox command. | |
6670 | * | |
6671 | * This routine is the completion callback function to register new vport | |
6672 | * mailbox command. If the new vport mailbox command completes successfully, | |
6673 | * the fabric registration login shall be performed on physical port (the | |
6674 | * new vport created is actually a physical port, with VPI 0) or the port | |
6675 | * login to Name Server for State Change Request (SCR) will be performed | |
6676 | * on virtual port (real virtual port, with VPI greater than 0). | |
6677 | **/ | |
92d7f7b0 JS |
6678 | static void |
6679 | lpfc_cmpl_reg_new_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) | |
6680 | { | |
6681 | struct lpfc_vport *vport = pmb->vport; | |
6682 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
6683 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; | |
04c68496 | 6684 | MAILBOX_t *mb = &pmb->u.mb; |
695a814e | 6685 | int rc; |
92d7f7b0 | 6686 | |
09372820 | 6687 | spin_lock_irq(shost->host_lock); |
92d7f7b0 | 6688 | vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; |
09372820 | 6689 | spin_unlock_irq(shost->host_lock); |
92d7f7b0 JS |
6690 | |
6691 | if (mb->mbxStatus) { | |
e8b62011 | 6692 | lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, |
38b92ef8 JS |
6693 | "0915 Register VPI failed : Status: x%x" |
6694 | " upd bit: x%x \n", mb->mbxStatus, | |
6695 | mb->un.varRegVpi.upd); | |
6696 | if (phba->sli_rev == LPFC_SLI_REV4 && | |
6697 | mb->un.varRegVpi.upd) | |
6698 | goto mbox_err_exit ; | |
92d7f7b0 JS |
6699 | |
6700 | switch (mb->mbxStatus) { | |
6701 | case 0x11: /* unsupported feature */ | |
6702 | case 0x9603: /* max_vpi exceeded */ | |
7f5f3d0d | 6703 | case 0x9602: /* Link event since CLEAR_LA */ |
92d7f7b0 JS |
6704 | /* giving up on vport registration */ |
6705 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
6706 | spin_lock_irq(shost->host_lock); | |
6707 | vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
6708 | spin_unlock_irq(shost->host_lock); | |
6709 | lpfc_can_disctmo(vport); | |
6710 | break; | |
695a814e JS |
6711 | /* If reg_vpi fail with invalid VPI status, re-init VPI */ |
6712 | case 0x20: | |
6713 | spin_lock_irq(shost->host_lock); | |
6714 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; | |
6715 | spin_unlock_irq(shost->host_lock); | |
6716 | lpfc_init_vpi(phba, pmb, vport->vpi); | |
6717 | pmb->vport = vport; | |
6718 | pmb->mbox_cmpl = lpfc_init_vpi_cmpl; | |
6719 | rc = lpfc_sli_issue_mbox(phba, pmb, | |
6720 | MBX_NOWAIT); | |
6721 | if (rc == MBX_NOT_FINISHED) { | |
6722 | lpfc_printf_vlog(vport, | |
6723 | KERN_ERR, LOG_MBOX, | |
6724 | "2732 Failed to issue INIT_VPI" | |
6725 | " mailbox command\n"); | |
6726 | } else { | |
6727 | lpfc_nlp_put(ndlp); | |
6728 | return; | |
6729 | } | |
6730 | ||
92d7f7b0 JS |
6731 | default: |
6732 | /* Try to recover from this error */ | |
5af5eee7 JS |
6733 | if (phba->sli_rev == LPFC_SLI_REV4) |
6734 | lpfc_sli4_unreg_all_rpis(vport); | |
92d7f7b0 | 6735 | lpfc_mbx_unreg_vpi(vport); |
09372820 | 6736 | spin_lock_irq(shost->host_lock); |
92d7f7b0 | 6737 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; |
09372820 | 6738 | spin_unlock_irq(shost->host_lock); |
4b40c59e JS |
6739 | if (vport->port_type == LPFC_PHYSICAL_PORT |
6740 | && !(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) | |
76a95d75 | 6741 | lpfc_issue_init_vfi(vport); |
7f5f3d0d JS |
6742 | else |
6743 | lpfc_initial_fdisc(vport); | |
92d7f7b0 JS |
6744 | break; |
6745 | } | |
92d7f7b0 | 6746 | } else { |
695a814e | 6747 | spin_lock_irq(shost->host_lock); |
1987807d | 6748 | vport->vpi_state |= LPFC_VPI_REGISTERED; |
695a814e JS |
6749 | spin_unlock_irq(shost->host_lock); |
6750 | if (vport == phba->pport) { | |
6fb120a7 JS |
6751 | if (phba->sli_rev < LPFC_SLI_REV4) |
6752 | lpfc_issue_fabric_reglogin(vport); | |
695a814e | 6753 | else { |
fc2b989b JS |
6754 | /* |
6755 | * If the physical port is instantiated using | |
6756 | * FDISC, do not start vport discovery. | |
6757 | */ | |
6758 | if (vport->port_state != LPFC_FDISC) | |
6759 | lpfc_start_fdiscs(phba); | |
695a814e JS |
6760 | lpfc_do_scr_ns_plogi(phba, vport); |
6761 | } | |
6762 | } else | |
92d7f7b0 JS |
6763 | lpfc_do_scr_ns_plogi(phba, vport); |
6764 | } | |
38b92ef8 | 6765 | mbox_err_exit: |
fa4066b6 JS |
6766 | /* Now, we decrement the ndlp reference count held for this |
6767 | * callback function | |
6768 | */ | |
6769 | lpfc_nlp_put(ndlp); | |
6770 | ||
92d7f7b0 JS |
6771 | mempool_free(pmb, phba->mbox_mem_pool); |
6772 | return; | |
6773 | } | |
6774 | ||
e59058c4 | 6775 | /** |
3621a710 | 6776 | * lpfc_register_new_vport - Register a new vport with a HBA |
e59058c4 JS |
6777 | * @phba: pointer to lpfc hba data structure. |
6778 | * @vport: pointer to a host virtual N_Port data structure. | |
6779 | * @ndlp: pointer to a node-list data structure. | |
6780 | * | |
6781 | * This routine registers the @vport as a new virtual port with a HBA. | |
6782 | * It is done through a registering vpi mailbox command. | |
6783 | **/ | |
695a814e | 6784 | void |
92d7f7b0 JS |
6785 | lpfc_register_new_vport(struct lpfc_hba *phba, struct lpfc_vport *vport, |
6786 | struct lpfc_nodelist *ndlp) | |
6787 | { | |
09372820 | 6788 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
92d7f7b0 JS |
6789 | LPFC_MBOXQ_t *mbox; |
6790 | ||
6791 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
6792 | if (mbox) { | |
6fb120a7 | 6793 | lpfc_reg_vpi(vport, mbox); |
92d7f7b0 JS |
6794 | mbox->vport = vport; |
6795 | mbox->context2 = lpfc_nlp_get(ndlp); | |
6796 | mbox->mbox_cmpl = lpfc_cmpl_reg_new_vport; | |
0b727fea | 6797 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) |
92d7f7b0 | 6798 | == MBX_NOT_FINISHED) { |
fa4066b6 JS |
6799 | /* mailbox command not success, decrement ndlp |
6800 | * reference count for this command | |
6801 | */ | |
6802 | lpfc_nlp_put(ndlp); | |
92d7f7b0 | 6803 | mempool_free(mbox, phba->mbox_mem_pool); |
92d7f7b0 | 6804 | |
e8b62011 JS |
6805 | lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, |
6806 | "0253 Register VPI: Can't send mbox\n"); | |
fa4066b6 | 6807 | goto mbox_err_exit; |
92d7f7b0 JS |
6808 | } |
6809 | } else { | |
e8b62011 JS |
6810 | lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, |
6811 | "0254 Register VPI: no memory\n"); | |
fa4066b6 | 6812 | goto mbox_err_exit; |
92d7f7b0 | 6813 | } |
fa4066b6 JS |
6814 | return; |
6815 | ||
6816 | mbox_err_exit: | |
6817 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
6818 | spin_lock_irq(shost->host_lock); | |
6819 | vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; | |
6820 | spin_unlock_irq(shost->host_lock); | |
6821 | return; | |
92d7f7b0 JS |
6822 | } |
6823 | ||
695a814e | 6824 | /** |
0c9ab6f5 | 6825 | * lpfc_cancel_all_vport_retry_delay_timer - Cancel all vport retry delay timer |
695a814e JS |
6826 | * @phba: pointer to lpfc hba data structure. |
6827 | * | |
0c9ab6f5 | 6828 | * This routine cancels the retry delay timers to all the vports. |
695a814e JS |
6829 | **/ |
6830 | void | |
0c9ab6f5 | 6831 | lpfc_cancel_all_vport_retry_delay_timer(struct lpfc_hba *phba) |
695a814e JS |
6832 | { |
6833 | struct lpfc_vport **vports; | |
6834 | struct lpfc_nodelist *ndlp; | |
695a814e | 6835 | uint32_t link_state; |
0c9ab6f5 | 6836 | int i; |
695a814e JS |
6837 | |
6838 | /* Treat this failure as linkdown for all vports */ | |
6839 | link_state = phba->link_state; | |
6840 | lpfc_linkdown(phba); | |
6841 | phba->link_state = link_state; | |
6842 | ||
6843 | vports = lpfc_create_vport_work_array(phba); | |
6844 | ||
6845 | if (vports) { | |
6846 | for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { | |
6847 | ndlp = lpfc_findnode_did(vports[i], Fabric_DID); | |
6848 | if (ndlp) | |
6849 | lpfc_cancel_retry_delay_tmo(vports[i], ndlp); | |
6850 | lpfc_els_flush_cmd(vports[i]); | |
6851 | } | |
6852 | lpfc_destroy_vport_work_array(phba, vports); | |
6853 | } | |
0c9ab6f5 JS |
6854 | } |
6855 | ||
6856 | /** | |
6857 | * lpfc_retry_pport_discovery - Start timer to retry FLOGI. | |
6858 | * @phba: pointer to lpfc hba data structure. | |
6859 | * | |
6860 | * This routine abort all pending discovery commands and | |
6861 | * start a timer to retry FLOGI for the physical port | |
6862 | * discovery. | |
6863 | **/ | |
6864 | void | |
6865 | lpfc_retry_pport_discovery(struct lpfc_hba *phba) | |
6866 | { | |
6867 | struct lpfc_nodelist *ndlp; | |
6868 | struct Scsi_Host *shost; | |
6869 | ||
6870 | /* Cancel the all vports retry delay retry timers */ | |
6871 | lpfc_cancel_all_vport_retry_delay_timer(phba); | |
695a814e JS |
6872 | |
6873 | /* If fabric require FLOGI, then re-instantiate physical login */ | |
6874 | ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); | |
6875 | if (!ndlp) | |
6876 | return; | |
6877 | ||
695a814e JS |
6878 | shost = lpfc_shost_from_vport(phba->pport); |
6879 | mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ); | |
6880 | spin_lock_irq(shost->host_lock); | |
6881 | ndlp->nlp_flag |= NLP_DELAY_TMO; | |
6882 | spin_unlock_irq(shost->host_lock); | |
6883 | ndlp->nlp_last_elscmd = ELS_CMD_FLOGI; | |
6884 | phba->pport->port_state = LPFC_FLOGI; | |
6885 | return; | |
6886 | } | |
6887 | ||
6888 | /** | |
6889 | * lpfc_fabric_login_reqd - Check if FLOGI required. | |
6890 | * @phba: pointer to lpfc hba data structure. | |
6891 | * @cmdiocb: pointer to FDISC command iocb. | |
6892 | * @rspiocb: pointer to FDISC response iocb. | |
6893 | * | |
6894 | * This routine checks if a FLOGI is reguired for FDISC | |
6895 | * to succeed. | |
6896 | **/ | |
6897 | static int | |
6898 | lpfc_fabric_login_reqd(struct lpfc_hba *phba, | |
6899 | struct lpfc_iocbq *cmdiocb, | |
6900 | struct lpfc_iocbq *rspiocb) | |
6901 | { | |
6902 | ||
6903 | if ((rspiocb->iocb.ulpStatus != IOSTAT_FABRIC_RJT) || | |
6904 | (rspiocb->iocb.un.ulpWord[4] != RJT_LOGIN_REQUIRED)) | |
6905 | return 0; | |
6906 | else | |
6907 | return 1; | |
6908 | } | |
6909 | ||
e59058c4 | 6910 | /** |
3621a710 | 6911 | * lpfc_cmpl_els_fdisc - Completion function for fdisc iocb command |
e59058c4 JS |
6912 | * @phba: pointer to lpfc hba data structure. |
6913 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
6914 | * @rspiocb: pointer to lpfc response iocb data structure. | |
6915 | * | |
6916 | * This routine is the completion callback function to a Fabric Discover | |
6917 | * (FDISC) ELS command. Since all the FDISC ELS commands are issued | |
6918 | * single threaded, each FDISC completion callback function will reset | |
6919 | * the discovery timer for all vports such that the timers will not get | |
6920 | * unnecessary timeout. The function checks the FDISC IOCB status. If error | |
6921 | * detected, the vport will be set to FC_VPORT_FAILED state. Otherwise,the | |
6922 | * vport will set to FC_VPORT_ACTIVE state. It then checks whether the DID | |
6923 | * assigned to the vport has been changed with the completion of the FDISC | |
6924 | * command. If so, both RPI (Remote Port Index) and VPI (Virtual Port Index) | |
6925 | * are unregistered from the HBA, and then the lpfc_register_new_vport() | |
6926 | * routine is invoked to register new vport with the HBA. Otherwise, the | |
6927 | * lpfc_do_scr_ns_plogi() routine is invoked to issue a PLOGI to the Name | |
6928 | * Server for State Change Request (SCR). | |
6929 | **/ | |
92d7f7b0 JS |
6930 | static void |
6931 | lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
6932 | struct lpfc_iocbq *rspiocb) | |
6933 | { | |
6934 | struct lpfc_vport *vport = cmdiocb->vport; | |
6935 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
6936 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
6937 | struct lpfc_nodelist *np; | |
6938 | struct lpfc_nodelist *next_np; | |
6939 | IOCB_t *irsp = &rspiocb->iocb; | |
6940 | struct lpfc_iocbq *piocb; | |
6941 | ||
e8b62011 JS |
6942 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
6943 | "0123 FDISC completes. x%x/x%x prevDID: x%x\n", | |
6944 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
6945 | vport->fc_prevDID); | |
92d7f7b0 JS |
6946 | /* Since all FDISCs are being single threaded, we |
6947 | * must reset the discovery timer for ALL vports | |
6948 | * waiting to send FDISC when one completes. | |
6949 | */ | |
6950 | list_for_each_entry(piocb, &phba->fabric_iocb_list, list) { | |
6951 | lpfc_set_disctmo(piocb->vport); | |
6952 | } | |
6953 | ||
858c9f6c JS |
6954 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
6955 | "FDISC cmpl: status:x%x/x%x prevdid:x%x", | |
6956 | irsp->ulpStatus, irsp->un.ulpWord[4], vport->fc_prevDID); | |
6957 | ||
92d7f7b0 | 6958 | if (irsp->ulpStatus) { |
695a814e JS |
6959 | |
6960 | if (lpfc_fabric_login_reqd(phba, cmdiocb, rspiocb)) { | |
6961 | lpfc_retry_pport_discovery(phba); | |
6962 | goto out; | |
6963 | } | |
6964 | ||
92d7f7b0 JS |
6965 | /* Check for retry */ |
6966 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) | |
6967 | goto out; | |
92d7f7b0 | 6968 | /* FDISC failed */ |
e8b62011 | 6969 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
d7c255b2 | 6970 | "0126 FDISC failed. (%d/%d)\n", |
e8b62011 | 6971 | irsp->ulpStatus, irsp->un.ulpWord[4]); |
d7c255b2 JS |
6972 | goto fdisc_failed; |
6973 | } | |
d7c255b2 | 6974 | spin_lock_irq(shost->host_lock); |
695a814e | 6975 | vport->fc_flag &= ~FC_VPORT_CVL_RCVD; |
4b40c59e | 6976 | vport->fc_flag &= ~FC_VPORT_LOGO_RCVD; |
d7c255b2 | 6977 | vport->fc_flag |= FC_FABRIC; |
76a95d75 | 6978 | if (vport->phba->fc_topology == LPFC_TOPOLOGY_LOOP) |
d7c255b2 JS |
6979 | vport->fc_flag |= FC_PUBLIC_LOOP; |
6980 | spin_unlock_irq(shost->host_lock); | |
92d7f7b0 | 6981 | |
d7c255b2 JS |
6982 | vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID; |
6983 | lpfc_vport_set_state(vport, FC_VPORT_ACTIVE); | |
6984 | if ((vport->fc_prevDID != vport->fc_myDID) && | |
6985 | !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { | |
6986 | /* If our NportID changed, we need to ensure all | |
6987 | * remaining NPORTs get unreg_login'ed so we can | |
6988 | * issue unreg_vpi. | |
6989 | */ | |
6990 | list_for_each_entry_safe(np, next_np, | |
6991 | &vport->fc_nodes, nlp_listp) { | |
6992 | if (!NLP_CHK_NODE_ACT(ndlp) || | |
6993 | (np->nlp_state != NLP_STE_NPR_NODE) || | |
6994 | !(np->nlp_flag & NLP_NPR_ADISC)) | |
6995 | continue; | |
09372820 | 6996 | spin_lock_irq(shost->host_lock); |
d7c255b2 | 6997 | np->nlp_flag &= ~NLP_NPR_ADISC; |
09372820 | 6998 | spin_unlock_irq(shost->host_lock); |
d7c255b2 | 6999 | lpfc_unreg_rpi(vport, np); |
92d7f7b0 | 7000 | } |
78730cfe | 7001 | lpfc_cleanup_pending_mbox(vport); |
5af5eee7 JS |
7002 | |
7003 | if (phba->sli_rev == LPFC_SLI_REV4) | |
7004 | lpfc_sli4_unreg_all_rpis(vport); | |
7005 | ||
d7c255b2 JS |
7006 | lpfc_mbx_unreg_vpi(vport); |
7007 | spin_lock_irq(shost->host_lock); | |
7008 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; | |
0f65ff68 JS |
7009 | if (phba->sli_rev == LPFC_SLI_REV4) |
7010 | vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; | |
4b40c59e JS |
7011 | else |
7012 | vport->fc_flag |= FC_LOGO_RCVD_DID_CHNG; | |
d7c255b2 | 7013 | spin_unlock_irq(shost->host_lock); |
38b92ef8 JS |
7014 | } else if ((phba->sli_rev == LPFC_SLI_REV4) && |
7015 | !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { | |
7016 | /* | |
7017 | * Driver needs to re-reg VPI in order for f/w | |
7018 | * to update the MAC address. | |
7019 | */ | |
7020 | lpfc_register_new_vport(phba, vport, ndlp); | |
5ac6b303 | 7021 | goto out; |
92d7f7b0 JS |
7022 | } |
7023 | ||
ecfd03c6 JS |
7024 | if (vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI) |
7025 | lpfc_issue_init_vpi(vport); | |
7026 | else if (vport->fc_flag & FC_VPORT_NEEDS_REG_VPI) | |
d7c255b2 JS |
7027 | lpfc_register_new_vport(phba, vport, ndlp); |
7028 | else | |
7029 | lpfc_do_scr_ns_plogi(phba, vport); | |
7030 | goto out; | |
7031 | fdisc_failed: | |
7032 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
7033 | /* Cancel discovery timer */ | |
7034 | lpfc_can_disctmo(vport); | |
7035 | lpfc_nlp_put(ndlp); | |
92d7f7b0 JS |
7036 | out: |
7037 | lpfc_els_free_iocb(phba, cmdiocb); | |
7038 | } | |
7039 | ||
e59058c4 | 7040 | /** |
3621a710 | 7041 | * lpfc_issue_els_fdisc - Issue a fdisc iocb command |
e59058c4 JS |
7042 | * @vport: pointer to a virtual N_Port data structure. |
7043 | * @ndlp: pointer to a node-list data structure. | |
7044 | * @retry: number of retries to the command IOCB. | |
7045 | * | |
7046 | * This routine prepares and issues a Fabric Discover (FDISC) IOCB to | |
7047 | * a remote node (@ndlp) off a @vport. It uses the lpfc_issue_fabric_iocb() | |
7048 | * routine to issue the IOCB, which makes sure only one outstanding fabric | |
7049 | * IOCB will be sent off HBA at any given time. | |
7050 | * | |
7051 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
7052 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
7053 | * will be stored into the context1 field of the IOCB for the completion | |
7054 | * callback function to the FDISC ELS command. | |
7055 | * | |
7056 | * Return code | |
7057 | * 0 - Successfully issued fdisc iocb command | |
7058 | * 1 - Failed to issue fdisc iocb command | |
7059 | **/ | |
a6ababd2 | 7060 | static int |
92d7f7b0 JS |
7061 | lpfc_issue_els_fdisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
7062 | uint8_t retry) | |
7063 | { | |
7064 | struct lpfc_hba *phba = vport->phba; | |
7065 | IOCB_t *icmd; | |
7066 | struct lpfc_iocbq *elsiocb; | |
7067 | struct serv_parm *sp; | |
7068 | uint8_t *pcmd; | |
7069 | uint16_t cmdsize; | |
7070 | int did = ndlp->nlp_DID; | |
7071 | int rc; | |
92d7f7b0 | 7072 | |
5ffc266e | 7073 | vport->port_state = LPFC_FDISC; |
92d7f7b0 JS |
7074 | cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); |
7075 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did, | |
7076 | ELS_CMD_FDISC); | |
7077 | if (!elsiocb) { | |
92d7f7b0 | 7078 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
e8b62011 JS |
7079 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
7080 | "0255 Issue FDISC: no IOCB\n"); | |
92d7f7b0 JS |
7081 | return 1; |
7082 | } | |
7083 | ||
7084 | icmd = &elsiocb->iocb; | |
7085 | icmd->un.elsreq64.myID = 0; | |
7086 | icmd->un.elsreq64.fl = 1; | |
7087 | ||
4042629e JS |
7088 | if ((phba->sli_rev == LPFC_SLI_REV4) && |
7089 | (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == | |
7090 | LPFC_SLI_INTF_IF_TYPE_0)) { | |
f1126688 JS |
7091 | /* FDISC needs to be 1 for WQE VPI */ |
7092 | elsiocb->iocb.ulpCt_h = (SLI4_CT_VPI >> 1) & 1; | |
7093 | elsiocb->iocb.ulpCt_l = SLI4_CT_VPI & 1 ; | |
7094 | /* Set the ulpContext to the vpi */ | |
7095 | elsiocb->iocb.ulpContext = vport->vpi + phba->vpi_base; | |
7096 | } else { | |
7097 | /* For FDISC, Let FDISC rsp set the NPortID for this VPI */ | |
7098 | icmd->ulpCt_h = 1; | |
7099 | icmd->ulpCt_l = 0; | |
7100 | } | |
92d7f7b0 JS |
7101 | |
7102 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
7103 | *((uint32_t *) (pcmd)) = ELS_CMD_FDISC; | |
7104 | pcmd += sizeof(uint32_t); /* CSP Word 1 */ | |
7105 | memcpy(pcmd, &vport->phba->pport->fc_sparam, sizeof(struct serv_parm)); | |
7106 | sp = (struct serv_parm *) pcmd; | |
7107 | /* Setup CSPs accordingly for Fabric */ | |
7108 | sp->cmn.e_d_tov = 0; | |
7109 | sp->cmn.w2.r_a_tov = 0; | |
7110 | sp->cls1.classValid = 0; | |
7111 | sp->cls2.seqDelivery = 1; | |
7112 | sp->cls3.seqDelivery = 1; | |
7113 | ||
7114 | pcmd += sizeof(uint32_t); /* CSP Word 2 */ | |
7115 | pcmd += sizeof(uint32_t); /* CSP Word 3 */ | |
7116 | pcmd += sizeof(uint32_t); /* CSP Word 4 */ | |
7117 | pcmd += sizeof(uint32_t); /* Port Name */ | |
7118 | memcpy(pcmd, &vport->fc_portname, 8); | |
7119 | pcmd += sizeof(uint32_t); /* Node Name */ | |
7120 | pcmd += sizeof(uint32_t); /* Node Name */ | |
7121 | memcpy(pcmd, &vport->fc_nodename, 8); | |
7122 | ||
7123 | lpfc_set_disctmo(vport); | |
7124 | ||
7125 | phba->fc_stat.elsXmitFDISC++; | |
7126 | elsiocb->iocb_cmpl = lpfc_cmpl_els_fdisc; | |
7127 | ||
858c9f6c JS |
7128 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
7129 | "Issue FDISC: did:x%x", | |
7130 | did, 0, 0); | |
7131 | ||
92d7f7b0 JS |
7132 | rc = lpfc_issue_fabric_iocb(phba, elsiocb); |
7133 | if (rc == IOCB_ERROR) { | |
7134 | lpfc_els_free_iocb(phba, elsiocb); | |
92d7f7b0 | 7135 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
e8b62011 JS |
7136 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
7137 | "0256 Issue FDISC: Cannot send IOCB\n"); | |
92d7f7b0 JS |
7138 | return 1; |
7139 | } | |
7140 | lpfc_vport_set_state(vport, FC_VPORT_INITIALIZING); | |
92d7f7b0 JS |
7141 | return 0; |
7142 | } | |
7143 | ||
e59058c4 | 7144 | /** |
3621a710 | 7145 | * lpfc_cmpl_els_npiv_logo - Completion function with vport logo |
e59058c4 JS |
7146 | * @phba: pointer to lpfc hba data structure. |
7147 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
7148 | * @rspiocb: pointer to lpfc response iocb data structure. | |
7149 | * | |
7150 | * This routine is the completion callback function to the issuing of a LOGO | |
7151 | * ELS command off a vport. It frees the command IOCB and then decrement the | |
7152 | * reference count held on ndlp for this completion function, indicating that | |
7153 | * the reference to the ndlp is no long needed. Note that the | |
7154 | * lpfc_els_free_iocb() routine decrements the ndlp reference held for this | |
7155 | * callback function and an additional explicit ndlp reference decrementation | |
7156 | * will trigger the actual release of the ndlp. | |
7157 | **/ | |
92d7f7b0 JS |
7158 | static void |
7159 | lpfc_cmpl_els_npiv_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
7160 | struct lpfc_iocbq *rspiocb) | |
7161 | { | |
7162 | struct lpfc_vport *vport = cmdiocb->vport; | |
858c9f6c | 7163 | IOCB_t *irsp; |
e47c9093 JS |
7164 | struct lpfc_nodelist *ndlp; |
7165 | ndlp = (struct lpfc_nodelist *)cmdiocb->context1; | |
858c9f6c JS |
7166 | |
7167 | irsp = &rspiocb->iocb; | |
7168 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, | |
7169 | "LOGO npiv cmpl: status:x%x/x%x did:x%x", | |
7170 | irsp->ulpStatus, irsp->un.ulpWord[4], irsp->un.rcvels.remoteID); | |
92d7f7b0 JS |
7171 | |
7172 | lpfc_els_free_iocb(phba, cmdiocb); | |
7173 | vport->unreg_vpi_cmpl = VPORT_ERROR; | |
e47c9093 JS |
7174 | |
7175 | /* Trigger the release of the ndlp after logo */ | |
7176 | lpfc_nlp_put(ndlp); | |
92d7f7b0 JS |
7177 | } |
7178 | ||
e59058c4 | 7179 | /** |
3621a710 | 7180 | * lpfc_issue_els_npiv_logo - Issue a logo off a vport |
e59058c4 JS |
7181 | * @vport: pointer to a virtual N_Port data structure. |
7182 | * @ndlp: pointer to a node-list data structure. | |
7183 | * | |
7184 | * This routine issues a LOGO ELS command to an @ndlp off a @vport. | |
7185 | * | |
7186 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
7187 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
7188 | * will be stored into the context1 field of the IOCB for the completion | |
7189 | * callback function to the LOGO ELS command. | |
7190 | * | |
7191 | * Return codes | |
7192 | * 0 - Successfully issued logo off the @vport | |
7193 | * 1 - Failed to issue logo off the @vport | |
7194 | **/ | |
92d7f7b0 JS |
7195 | int |
7196 | lpfc_issue_els_npiv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) | |
7197 | { | |
7198 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
7199 | struct lpfc_hba *phba = vport->phba; | |
92d7f7b0 JS |
7200 | IOCB_t *icmd; |
7201 | struct lpfc_iocbq *elsiocb; | |
7202 | uint8_t *pcmd; | |
7203 | uint16_t cmdsize; | |
7204 | ||
7205 | cmdsize = 2 * sizeof(uint32_t) + sizeof(struct lpfc_name); | |
7206 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, ndlp->nlp_DID, | |
7207 | ELS_CMD_LOGO); | |
7208 | if (!elsiocb) | |
7209 | return 1; | |
7210 | ||
7211 | icmd = &elsiocb->iocb; | |
7212 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
7213 | *((uint32_t *) (pcmd)) = ELS_CMD_LOGO; | |
7214 | pcmd += sizeof(uint32_t); | |
7215 | ||
7216 | /* Fill in LOGO payload */ | |
7217 | *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID); | |
7218 | pcmd += sizeof(uint32_t); | |
7219 | memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name)); | |
7220 | ||
858c9f6c JS |
7221 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
7222 | "Issue LOGO npiv did:x%x flg:x%x", | |
7223 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
7224 | ||
92d7f7b0 JS |
7225 | elsiocb->iocb_cmpl = lpfc_cmpl_els_npiv_logo; |
7226 | spin_lock_irq(shost->host_lock); | |
7227 | ndlp->nlp_flag |= NLP_LOGO_SND; | |
7228 | spin_unlock_irq(shost->host_lock); | |
3772a991 JS |
7229 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
7230 | IOCB_ERROR) { | |
92d7f7b0 JS |
7231 | spin_lock_irq(shost->host_lock); |
7232 | ndlp->nlp_flag &= ~NLP_LOGO_SND; | |
7233 | spin_unlock_irq(shost->host_lock); | |
7234 | lpfc_els_free_iocb(phba, elsiocb); | |
7235 | return 1; | |
7236 | } | |
7237 | return 0; | |
7238 | } | |
7239 | ||
e59058c4 | 7240 | /** |
3621a710 | 7241 | * lpfc_fabric_block_timeout - Handler function to the fabric block timer |
e59058c4 JS |
7242 | * @ptr: holder for the timer function associated data. |
7243 | * | |
7244 | * This routine is invoked by the fabric iocb block timer after | |
7245 | * timeout. It posts the fabric iocb block timeout event by setting the | |
7246 | * WORKER_FABRIC_BLOCK_TMO bit to work port event bitmap and then invokes | |
7247 | * lpfc_worker_wake_up() routine to wake up the worker thread. It is for | |
7248 | * the worker thread to invoke the lpfc_unblock_fabric_iocbs() on the | |
7249 | * posted event WORKER_FABRIC_BLOCK_TMO. | |
7250 | **/ | |
92d7f7b0 JS |
7251 | void |
7252 | lpfc_fabric_block_timeout(unsigned long ptr) | |
7253 | { | |
7254 | struct lpfc_hba *phba = (struct lpfc_hba *) ptr; | |
7255 | unsigned long iflags; | |
7256 | uint32_t tmo_posted; | |
5e9d9b82 | 7257 | |
92d7f7b0 JS |
7258 | spin_lock_irqsave(&phba->pport->work_port_lock, iflags); |
7259 | tmo_posted = phba->pport->work_port_events & WORKER_FABRIC_BLOCK_TMO; | |
7260 | if (!tmo_posted) | |
7261 | phba->pport->work_port_events |= WORKER_FABRIC_BLOCK_TMO; | |
7262 | spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags); | |
7263 | ||
5e9d9b82 JS |
7264 | if (!tmo_posted) |
7265 | lpfc_worker_wake_up(phba); | |
7266 | return; | |
92d7f7b0 JS |
7267 | } |
7268 | ||
e59058c4 | 7269 | /** |
3621a710 | 7270 | * lpfc_resume_fabric_iocbs - Issue a fabric iocb from driver internal list |
e59058c4 JS |
7271 | * @phba: pointer to lpfc hba data structure. |
7272 | * | |
7273 | * This routine issues one fabric iocb from the driver internal list to | |
7274 | * the HBA. It first checks whether it's ready to issue one fabric iocb to | |
7275 | * the HBA (whether there is no outstanding fabric iocb). If so, it shall | |
7276 | * remove one pending fabric iocb from the driver internal list and invokes | |
7277 | * lpfc_sli_issue_iocb() routine to send the fabric iocb to the HBA. | |
7278 | **/ | |
92d7f7b0 JS |
7279 | static void |
7280 | lpfc_resume_fabric_iocbs(struct lpfc_hba *phba) | |
7281 | { | |
7282 | struct lpfc_iocbq *iocb; | |
7283 | unsigned long iflags; | |
7284 | int ret; | |
92d7f7b0 JS |
7285 | IOCB_t *cmd; |
7286 | ||
7287 | repeat: | |
7288 | iocb = NULL; | |
7289 | spin_lock_irqsave(&phba->hbalock, iflags); | |
7f5f3d0d | 7290 | /* Post any pending iocb to the SLI layer */ |
92d7f7b0 JS |
7291 | if (atomic_read(&phba->fabric_iocb_count) == 0) { |
7292 | list_remove_head(&phba->fabric_iocb_list, iocb, typeof(*iocb), | |
7293 | list); | |
7294 | if (iocb) | |
7f5f3d0d | 7295 | /* Increment fabric iocb count to hold the position */ |
92d7f7b0 JS |
7296 | atomic_inc(&phba->fabric_iocb_count); |
7297 | } | |
7298 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
7299 | if (iocb) { | |
7300 | iocb->fabric_iocb_cmpl = iocb->iocb_cmpl; | |
7301 | iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb; | |
7302 | iocb->iocb_flag |= LPFC_IO_FABRIC; | |
7303 | ||
858c9f6c JS |
7304 | lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD, |
7305 | "Fabric sched1: ste:x%x", | |
7306 | iocb->vport->port_state, 0, 0); | |
7307 | ||
3772a991 | 7308 | ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0); |
92d7f7b0 JS |
7309 | |
7310 | if (ret == IOCB_ERROR) { | |
7311 | iocb->iocb_cmpl = iocb->fabric_iocb_cmpl; | |
7312 | iocb->fabric_iocb_cmpl = NULL; | |
7313 | iocb->iocb_flag &= ~LPFC_IO_FABRIC; | |
7314 | cmd = &iocb->iocb; | |
7315 | cmd->ulpStatus = IOSTAT_LOCAL_REJECT; | |
7316 | cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; | |
7317 | iocb->iocb_cmpl(phba, iocb, iocb); | |
7318 | ||
7319 | atomic_dec(&phba->fabric_iocb_count); | |
7320 | goto repeat; | |
7321 | } | |
7322 | } | |
7323 | ||
7324 | return; | |
7325 | } | |
7326 | ||
e59058c4 | 7327 | /** |
3621a710 | 7328 | * lpfc_unblock_fabric_iocbs - Unblock issuing fabric iocb command |
e59058c4 JS |
7329 | * @phba: pointer to lpfc hba data structure. |
7330 | * | |
7331 | * This routine unblocks the issuing fabric iocb command. The function | |
7332 | * will clear the fabric iocb block bit and then invoke the routine | |
7333 | * lpfc_resume_fabric_iocbs() to issue one of the pending fabric iocb | |
7334 | * from the driver internal fabric iocb list. | |
7335 | **/ | |
92d7f7b0 JS |
7336 | void |
7337 | lpfc_unblock_fabric_iocbs(struct lpfc_hba *phba) | |
7338 | { | |
7339 | clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); | |
7340 | ||
7341 | lpfc_resume_fabric_iocbs(phba); | |
7342 | return; | |
7343 | } | |
7344 | ||
e59058c4 | 7345 | /** |
3621a710 | 7346 | * lpfc_block_fabric_iocbs - Block issuing fabric iocb command |
e59058c4 JS |
7347 | * @phba: pointer to lpfc hba data structure. |
7348 | * | |
7349 | * This routine blocks the issuing fabric iocb for a specified amount of | |
7350 | * time (currently 100 ms). This is done by set the fabric iocb block bit | |
7351 | * and set up a timeout timer for 100ms. When the block bit is set, no more | |
7352 | * fabric iocb will be issued out of the HBA. | |
7353 | **/ | |
92d7f7b0 JS |
7354 | static void |
7355 | lpfc_block_fabric_iocbs(struct lpfc_hba *phba) | |
7356 | { | |
7357 | int blocked; | |
7358 | ||
7359 | blocked = test_and_set_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); | |
7f5f3d0d | 7360 | /* Start a timer to unblock fabric iocbs after 100ms */ |
92d7f7b0 JS |
7361 | if (!blocked) |
7362 | mod_timer(&phba->fabric_block_timer, jiffies + HZ/10 ); | |
7363 | ||
7364 | return; | |
7365 | } | |
7366 | ||
e59058c4 | 7367 | /** |
3621a710 | 7368 | * lpfc_cmpl_fabric_iocb - Completion callback function for fabric iocb |
e59058c4 JS |
7369 | * @phba: pointer to lpfc hba data structure. |
7370 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
7371 | * @rspiocb: pointer to lpfc response iocb data structure. | |
7372 | * | |
7373 | * This routine is the callback function that is put to the fabric iocb's | |
7374 | * callback function pointer (iocb->iocb_cmpl). The original iocb's callback | |
7375 | * function pointer has been stored in iocb->fabric_iocb_cmpl. This callback | |
7376 | * function first restores and invokes the original iocb's callback function | |
7377 | * and then invokes the lpfc_resume_fabric_iocbs() routine to issue the next | |
7378 | * fabric bound iocb from the driver internal fabric iocb list onto the wire. | |
7379 | **/ | |
92d7f7b0 JS |
7380 | static void |
7381 | lpfc_cmpl_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
7382 | struct lpfc_iocbq *rspiocb) | |
7383 | { | |
7384 | struct ls_rjt stat; | |
7385 | ||
7386 | if ((cmdiocb->iocb_flag & LPFC_IO_FABRIC) != LPFC_IO_FABRIC) | |
7387 | BUG(); | |
7388 | ||
7389 | switch (rspiocb->iocb.ulpStatus) { | |
7390 | case IOSTAT_NPORT_RJT: | |
7391 | case IOSTAT_FABRIC_RJT: | |
7392 | if (rspiocb->iocb.un.ulpWord[4] & RJT_UNAVAIL_TEMP) { | |
7393 | lpfc_block_fabric_iocbs(phba); | |
ed957684 | 7394 | } |
92d7f7b0 JS |
7395 | break; |
7396 | ||
7397 | case IOSTAT_NPORT_BSY: | |
7398 | case IOSTAT_FABRIC_BSY: | |
7399 | lpfc_block_fabric_iocbs(phba); | |
7400 | break; | |
7401 | ||
7402 | case IOSTAT_LS_RJT: | |
7403 | stat.un.lsRjtError = | |
7404 | be32_to_cpu(rspiocb->iocb.un.ulpWord[4]); | |
7405 | if ((stat.un.b.lsRjtRsnCode == LSRJT_UNABLE_TPC) || | |
7406 | (stat.un.b.lsRjtRsnCode == LSRJT_LOGICAL_BSY)) | |
7407 | lpfc_block_fabric_iocbs(phba); | |
7408 | break; | |
7409 | } | |
7410 | ||
7411 | if (atomic_read(&phba->fabric_iocb_count) == 0) | |
7412 | BUG(); | |
7413 | ||
7414 | cmdiocb->iocb_cmpl = cmdiocb->fabric_iocb_cmpl; | |
7415 | cmdiocb->fabric_iocb_cmpl = NULL; | |
7416 | cmdiocb->iocb_flag &= ~LPFC_IO_FABRIC; | |
7417 | cmdiocb->iocb_cmpl(phba, cmdiocb, rspiocb); | |
7418 | ||
7419 | atomic_dec(&phba->fabric_iocb_count); | |
7420 | if (!test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags)) { | |
7f5f3d0d JS |
7421 | /* Post any pending iocbs to HBA */ |
7422 | lpfc_resume_fabric_iocbs(phba); | |
92d7f7b0 JS |
7423 | } |
7424 | } | |
7425 | ||
e59058c4 | 7426 | /** |
3621a710 | 7427 | * lpfc_issue_fabric_iocb - Issue a fabric iocb command |
e59058c4 JS |
7428 | * @phba: pointer to lpfc hba data structure. |
7429 | * @iocb: pointer to lpfc command iocb data structure. | |
7430 | * | |
7431 | * This routine is used as the top-level API for issuing a fabric iocb command | |
7432 | * such as FLOGI and FDISC. To accommodate certain switch fabric, this driver | |
7433 | * function makes sure that only one fabric bound iocb will be outstanding at | |
7434 | * any given time. As such, this function will first check to see whether there | |
7435 | * is already an outstanding fabric iocb on the wire. If so, it will put the | |
7436 | * newly issued iocb onto the driver internal fabric iocb list, waiting to be | |
7437 | * issued later. Otherwise, it will issue the iocb on the wire and update the | |
7438 | * fabric iocb count it indicate that there is one fabric iocb on the wire. | |
7439 | * | |
7440 | * Note, this implementation has a potential sending out fabric IOCBs out of | |
7441 | * order. The problem is caused by the construction of the "ready" boolen does | |
7442 | * not include the condition that the internal fabric IOCB list is empty. As | |
7443 | * such, it is possible a fabric IOCB issued by this routine might be "jump" | |
7444 | * ahead of the fabric IOCBs in the internal list. | |
7445 | * | |
7446 | * Return code | |
7447 | * IOCB_SUCCESS - either fabric iocb put on the list or issued successfully | |
7448 | * IOCB_ERROR - failed to issue fabric iocb | |
7449 | **/ | |
a6ababd2 | 7450 | static int |
92d7f7b0 JS |
7451 | lpfc_issue_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *iocb) |
7452 | { | |
7453 | unsigned long iflags; | |
92d7f7b0 JS |
7454 | int ready; |
7455 | int ret; | |
7456 | ||
7457 | if (atomic_read(&phba->fabric_iocb_count) > 1) | |
7458 | BUG(); | |
7459 | ||
7460 | spin_lock_irqsave(&phba->hbalock, iflags); | |
7461 | ready = atomic_read(&phba->fabric_iocb_count) == 0 && | |
7462 | !test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); | |
7463 | ||
7f5f3d0d JS |
7464 | if (ready) |
7465 | /* Increment fabric iocb count to hold the position */ | |
7466 | atomic_inc(&phba->fabric_iocb_count); | |
92d7f7b0 JS |
7467 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
7468 | if (ready) { | |
7469 | iocb->fabric_iocb_cmpl = iocb->iocb_cmpl; | |
7470 | iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb; | |
7471 | iocb->iocb_flag |= LPFC_IO_FABRIC; | |
7472 | ||
858c9f6c JS |
7473 | lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD, |
7474 | "Fabric sched2: ste:x%x", | |
7475 | iocb->vport->port_state, 0, 0); | |
7476 | ||
3772a991 | 7477 | ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0); |
92d7f7b0 JS |
7478 | |
7479 | if (ret == IOCB_ERROR) { | |
7480 | iocb->iocb_cmpl = iocb->fabric_iocb_cmpl; | |
7481 | iocb->fabric_iocb_cmpl = NULL; | |
7482 | iocb->iocb_flag &= ~LPFC_IO_FABRIC; | |
7483 | atomic_dec(&phba->fabric_iocb_count); | |
7484 | } | |
7485 | } else { | |
7486 | spin_lock_irqsave(&phba->hbalock, iflags); | |
7487 | list_add_tail(&iocb->list, &phba->fabric_iocb_list); | |
7488 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
7489 | ret = IOCB_SUCCESS; | |
7490 | } | |
7491 | return ret; | |
7492 | } | |
7493 | ||
e59058c4 | 7494 | /** |
3621a710 | 7495 | * lpfc_fabric_abort_vport - Abort a vport's iocbs from driver fabric iocb list |
e59058c4 JS |
7496 | * @vport: pointer to a virtual N_Port data structure. |
7497 | * | |
7498 | * This routine aborts all the IOCBs associated with a @vport from the | |
7499 | * driver internal fabric IOCB list. The list contains fabric IOCBs to be | |
7500 | * issued to the ELS IOCB ring. This abort function walks the fabric IOCB | |
7501 | * list, removes each IOCB associated with the @vport off the list, set the | |
7502 | * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function | |
7503 | * associated with the IOCB. | |
7504 | **/ | |
a6ababd2 | 7505 | static void lpfc_fabric_abort_vport(struct lpfc_vport *vport) |
92d7f7b0 JS |
7506 | { |
7507 | LIST_HEAD(completions); | |
7508 | struct lpfc_hba *phba = vport->phba; | |
7509 | struct lpfc_iocbq *tmp_iocb, *piocb; | |
92d7f7b0 JS |
7510 | |
7511 | spin_lock_irq(&phba->hbalock); | |
7512 | list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list, | |
7513 | list) { | |
7514 | ||
7515 | if (piocb->vport != vport) | |
7516 | continue; | |
7517 | ||
7518 | list_move_tail(&piocb->list, &completions); | |
7519 | } | |
7520 | spin_unlock_irq(&phba->hbalock); | |
7521 | ||
a257bf90 JS |
7522 | /* Cancel all the IOCBs from the completions list */ |
7523 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
7524 | IOERR_SLI_ABORTED); | |
92d7f7b0 JS |
7525 | } |
7526 | ||
e59058c4 | 7527 | /** |
3621a710 | 7528 | * lpfc_fabric_abort_nport - Abort a ndlp's iocbs from driver fabric iocb list |
e59058c4 JS |
7529 | * @ndlp: pointer to a node-list data structure. |
7530 | * | |
7531 | * This routine aborts all the IOCBs associated with an @ndlp from the | |
7532 | * driver internal fabric IOCB list. The list contains fabric IOCBs to be | |
7533 | * issued to the ELS IOCB ring. This abort function walks the fabric IOCB | |
7534 | * list, removes each IOCB associated with the @ndlp off the list, set the | |
7535 | * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function | |
7536 | * associated with the IOCB. | |
7537 | **/ | |
92d7f7b0 JS |
7538 | void lpfc_fabric_abort_nport(struct lpfc_nodelist *ndlp) |
7539 | { | |
7540 | LIST_HEAD(completions); | |
a257bf90 | 7541 | struct lpfc_hba *phba = ndlp->phba; |
92d7f7b0 JS |
7542 | struct lpfc_iocbq *tmp_iocb, *piocb; |
7543 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; | |
92d7f7b0 JS |
7544 | |
7545 | spin_lock_irq(&phba->hbalock); | |
7546 | list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list, | |
7547 | list) { | |
7548 | if ((lpfc_check_sli_ndlp(phba, pring, piocb, ndlp))) { | |
7549 | ||
7550 | list_move_tail(&piocb->list, &completions); | |
ed957684 | 7551 | } |
dea3101e | 7552 | } |
92d7f7b0 JS |
7553 | spin_unlock_irq(&phba->hbalock); |
7554 | ||
a257bf90 JS |
7555 | /* Cancel all the IOCBs from the completions list */ |
7556 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
7557 | IOERR_SLI_ABORTED); | |
92d7f7b0 JS |
7558 | } |
7559 | ||
e59058c4 | 7560 | /** |
3621a710 | 7561 | * lpfc_fabric_abort_hba - Abort all iocbs on driver fabric iocb list |
e59058c4 JS |
7562 | * @phba: pointer to lpfc hba data structure. |
7563 | * | |
7564 | * This routine aborts all the IOCBs currently on the driver internal | |
7565 | * fabric IOCB list. The list contains fabric IOCBs to be issued to the ELS | |
7566 | * IOCB ring. This function takes the entire IOCB list off the fabric IOCB | |
7567 | * list, removes IOCBs off the list, set the status feild to | |
7568 | * IOSTAT_LOCAL_REJECT, and invokes the callback function associated with | |
7569 | * the IOCB. | |
7570 | **/ | |
92d7f7b0 JS |
7571 | void lpfc_fabric_abort_hba(struct lpfc_hba *phba) |
7572 | { | |
7573 | LIST_HEAD(completions); | |
92d7f7b0 JS |
7574 | |
7575 | spin_lock_irq(&phba->hbalock); | |
7576 | list_splice_init(&phba->fabric_iocb_list, &completions); | |
7577 | spin_unlock_irq(&phba->hbalock); | |
7578 | ||
a257bf90 JS |
7579 | /* Cancel all the IOCBs from the completions list */ |
7580 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
7581 | IOERR_SLI_ABORTED); | |
dea3101e | 7582 | } |
6fb120a7 JS |
7583 | |
7584 | /** | |
7585 | * lpfc_sli4_els_xri_aborted - Slow-path process of els xri abort | |
7586 | * @phba: pointer to lpfc hba data structure. | |
7587 | * @axri: pointer to the els xri abort wcqe structure. | |
7588 | * | |
7589 | * This routine is invoked by the worker thread to process a SLI4 slow-path | |
7590 | * ELS aborted xri. | |
7591 | **/ | |
7592 | void | |
7593 | lpfc_sli4_els_xri_aborted(struct lpfc_hba *phba, | |
7594 | struct sli4_wcqe_xri_aborted *axri) | |
7595 | { | |
7596 | uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri); | |
19ca7609 JS |
7597 | uint16_t rxid = bf_get(lpfc_wcqe_xa_remote_xid, axri); |
7598 | ||
6fb120a7 JS |
7599 | struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; |
7600 | unsigned long iflag = 0; | |
19ca7609 | 7601 | struct lpfc_nodelist *ndlp; |
589a52d6 | 7602 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; |
6fb120a7 | 7603 | |
0f65ff68 JS |
7604 | spin_lock_irqsave(&phba->hbalock, iflag); |
7605 | spin_lock(&phba->sli4_hba.abts_sgl_list_lock); | |
6fb120a7 JS |
7606 | list_for_each_entry_safe(sglq_entry, sglq_next, |
7607 | &phba->sli4_hba.lpfc_abts_els_sgl_list, list) { | |
7608 | if (sglq_entry->sli4_xritag == xri) { | |
7609 | list_del(&sglq_entry->list); | |
19ca7609 JS |
7610 | ndlp = sglq_entry->ndlp; |
7611 | sglq_entry->ndlp = NULL; | |
6fb120a7 JS |
7612 | list_add_tail(&sglq_entry->list, |
7613 | &phba->sli4_hba.lpfc_sgl_list); | |
0f65ff68 JS |
7614 | sglq_entry->state = SGL_FREED; |
7615 | spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); | |
6fb120a7 | 7616 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
19ca7609 | 7617 | lpfc_set_rrq_active(phba, ndlp, xri, rxid, 1); |
589a52d6 JS |
7618 | |
7619 | /* Check if TXQ queue needs to be serviced */ | |
7620 | if (pring->txq_cnt) | |
7621 | lpfc_worker_wake_up(phba); | |
6fb120a7 JS |
7622 | return; |
7623 | } | |
7624 | } | |
0f65ff68 JS |
7625 | spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); |
7626 | sglq_entry = __lpfc_get_active_sglq(phba, xri); | |
7627 | if (!sglq_entry || (sglq_entry->sli4_xritag != xri)) { | |
7628 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
7629 | return; | |
7630 | } | |
7631 | sglq_entry->state = SGL_XRI_ABORTED; | |
7632 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
7633 | return; | |
6fb120a7 | 7634 | } |