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dea3101e JB |
1 | /******************************************************************* |
2 | * This file is part of the Emulex Linux Device Driver for * | |
c44ce173 | 3 | * Fibre Channel Host Bus Adapters. * |
92494144 | 4 | * Copyright (C) 2004-2011 Emulex. All rights reserved. * |
c44ce173 | 5 | * EMULEX and SLI are trademarks of Emulex. * |
dea3101e | 6 | * www.emulex.com * |
c44ce173 | 7 | * Portions Copyright (C) 2004-2005 Christoph Hellwig * |
dea3101e JB |
8 | * * |
9 | * This program is free software; you can redistribute it and/or * | |
c44ce173 JSEC |
10 | * modify it under the terms of version 2 of the GNU General * |
11 | * Public License as published by the Free Software Foundation. * | |
12 | * This program is distributed in the hope that it will be useful. * | |
13 | * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * | |
14 | * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * | |
15 | * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * | |
16 | * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * | |
17 | * TO BE LEGALLY INVALID. See the GNU General Public License for * | |
18 | * more details, a copy of which can be found in the file COPYING * | |
19 | * included with this package. * | |
dea3101e | 20 | *******************************************************************/ |
09372820 | 21 | /* See Fibre Channel protocol T11 FC-LS for details */ |
dea3101e JB |
22 | #include <linux/blkdev.h> |
23 | #include <linux/pci.h> | |
5a0e3ad6 | 24 | #include <linux/slab.h> |
dea3101e JB |
25 | #include <linux/interrupt.h> |
26 | ||
91886523 | 27 | #include <scsi/scsi.h> |
dea3101e JB |
28 | #include <scsi/scsi_device.h> |
29 | #include <scsi/scsi_host.h> | |
30 | #include <scsi/scsi_transport_fc.h> | |
31 | ||
da0436e9 | 32 | #include "lpfc_hw4.h" |
dea3101e JB |
33 | #include "lpfc_hw.h" |
34 | #include "lpfc_sli.h" | |
da0436e9 | 35 | #include "lpfc_sli4.h" |
ea2151b4 | 36 | #include "lpfc_nl.h" |
dea3101e JB |
37 | #include "lpfc_disc.h" |
38 | #include "lpfc_scsi.h" | |
39 | #include "lpfc.h" | |
40 | #include "lpfc_logmsg.h" | |
41 | #include "lpfc_crtn.h" | |
92d7f7b0 | 42 | #include "lpfc_vport.h" |
858c9f6c | 43 | #include "lpfc_debugfs.h" |
dea3101e JB |
44 | |
45 | static int lpfc_els_retry(struct lpfc_hba *, struct lpfc_iocbq *, | |
46 | struct lpfc_iocbq *); | |
92d7f7b0 JS |
47 | static void lpfc_cmpl_fabric_iocb(struct lpfc_hba *, struct lpfc_iocbq *, |
48 | struct lpfc_iocbq *); | |
a6ababd2 AB |
49 | static void lpfc_fabric_abort_vport(struct lpfc_vport *vport); |
50 | static int lpfc_issue_els_fdisc(struct lpfc_vport *vport, | |
51 | struct lpfc_nodelist *ndlp, uint8_t retry); | |
52 | static int lpfc_issue_fabric_iocb(struct lpfc_hba *phba, | |
53 | struct lpfc_iocbq *iocb); | |
92d7f7b0 | 54 | |
dea3101e JB |
55 | static int lpfc_max_els_tries = 3; |
56 | ||
e59058c4 | 57 | /** |
3621a710 | 58 | * lpfc_els_chk_latt - Check host link attention event for a vport |
e59058c4 JS |
59 | * @vport: pointer to a host virtual N_Port data structure. |
60 | * | |
61 | * This routine checks whether there is an outstanding host link | |
62 | * attention event during the discovery process with the @vport. It is done | |
63 | * by reading the HBA's Host Attention (HA) register. If there is any host | |
64 | * link attention events during this @vport's discovery process, the @vport | |
65 | * shall be marked as FC_ABORT_DISCOVERY, a host link attention clear shall | |
66 | * be issued if the link state is not already in host link cleared state, | |
67 | * and a return code shall indicate whether the host link attention event | |
68 | * had happened. | |
69 | * | |
70 | * Note that, if either the host link is in state LPFC_LINK_DOWN or @vport | |
71 | * state in LPFC_VPORT_READY, the request for checking host link attention | |
72 | * event will be ignored and a return code shall indicate no host link | |
73 | * attention event had happened. | |
74 | * | |
75 | * Return codes | |
76 | * 0 - no host link attention event happened | |
77 | * 1 - host link attention event happened | |
78 | **/ | |
858c9f6c | 79 | int |
2e0fef85 | 80 | lpfc_els_chk_latt(struct lpfc_vport *vport) |
dea3101e | 81 | { |
2e0fef85 JS |
82 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
83 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 84 | uint32_t ha_copy; |
dea3101e | 85 | |
2e0fef85 | 86 | if (vport->port_state >= LPFC_VPORT_READY || |
3772a991 JS |
87 | phba->link_state == LPFC_LINK_DOWN || |
88 | phba->sli_rev > LPFC_SLI_REV3) | |
dea3101e JB |
89 | return 0; |
90 | ||
91 | /* Read the HBA Host Attention Register */ | |
9940b97b JS |
92 | if (lpfc_readl(phba->HAregaddr, &ha_copy)) |
93 | return 1; | |
dea3101e JB |
94 | |
95 | if (!(ha_copy & HA_LATT)) | |
96 | return 0; | |
97 | ||
98 | /* Pending Link Event during Discovery */ | |
e8b62011 JS |
99 | lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, |
100 | "0237 Pending Link Event during " | |
101 | "Discovery: State x%x\n", | |
102 | phba->pport->port_state); | |
dea3101e JB |
103 | |
104 | /* CLEAR_LA should re-enable link attention events and | |
25985edc | 105 | * we should then immediately take a LATT event. The |
dea3101e JB |
106 | * LATT processing should call lpfc_linkdown() which |
107 | * will cleanup any left over in-progress discovery | |
108 | * events. | |
109 | */ | |
2e0fef85 JS |
110 | spin_lock_irq(shost->host_lock); |
111 | vport->fc_flag |= FC_ABORT_DISCOVERY; | |
112 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 113 | |
92d7f7b0 | 114 | if (phba->link_state != LPFC_CLEAR_LA) |
ed957684 | 115 | lpfc_issue_clear_la(phba, vport); |
dea3101e | 116 | |
c9f8735b | 117 | return 1; |
dea3101e JB |
118 | } |
119 | ||
e59058c4 | 120 | /** |
3621a710 | 121 | * lpfc_prep_els_iocb - Allocate and prepare a lpfc iocb data structure |
e59058c4 JS |
122 | * @vport: pointer to a host virtual N_Port data structure. |
123 | * @expectRsp: flag indicating whether response is expected. | |
124 | * @cmdSize: size of the ELS command. | |
125 | * @retry: number of retries to the command IOCB when it fails. | |
126 | * @ndlp: pointer to a node-list data structure. | |
127 | * @did: destination identifier. | |
128 | * @elscmd: the ELS command code. | |
129 | * | |
130 | * This routine is used for allocating a lpfc-IOCB data structure from | |
131 | * the driver lpfc-IOCB free-list and prepare the IOCB with the parameters | |
132 | * passed into the routine for discovery state machine to issue an Extended | |
133 | * Link Service (ELS) commands. It is a generic lpfc-IOCB allocation | |
134 | * and preparation routine that is used by all the discovery state machine | |
135 | * routines and the ELS command-specific fields will be later set up by | |
136 | * the individual discovery machine routines after calling this routine | |
137 | * allocating and preparing a generic IOCB data structure. It fills in the | |
138 | * Buffer Descriptor Entries (BDEs), allocates buffers for both command | |
139 | * payload and response payload (if expected). The reference count on the | |
140 | * ndlp is incremented by 1 and the reference to the ndlp is put into | |
141 | * context1 of the IOCB data structure for this IOCB to hold the ndlp | |
142 | * reference for the command's callback function to access later. | |
143 | * | |
144 | * Return code | |
145 | * Pointer to the newly allocated/prepared els iocb data structure | |
146 | * NULL - when els iocb data structure allocation/preparation failed | |
147 | **/ | |
f1c3b0fc | 148 | struct lpfc_iocbq * |
2e0fef85 JS |
149 | lpfc_prep_els_iocb(struct lpfc_vport *vport, uint8_t expectRsp, |
150 | uint16_t cmdSize, uint8_t retry, | |
151 | struct lpfc_nodelist *ndlp, uint32_t did, | |
152 | uint32_t elscmd) | |
dea3101e | 153 | { |
2e0fef85 | 154 | struct lpfc_hba *phba = vport->phba; |
0bd4ca25 | 155 | struct lpfc_iocbq *elsiocb; |
dea3101e JB |
156 | struct lpfc_dmabuf *pcmd, *prsp, *pbuflist; |
157 | struct ulp_bde64 *bpl; | |
158 | IOCB_t *icmd; | |
159 | ||
dea3101e | 160 | |
2e0fef85 JS |
161 | if (!lpfc_is_link_up(phba)) |
162 | return NULL; | |
dea3101e | 163 | |
dea3101e | 164 | /* Allocate buffer for command iocb */ |
0bd4ca25 | 165 | elsiocb = lpfc_sli_get_iocbq(phba); |
dea3101e JB |
166 | |
167 | if (elsiocb == NULL) | |
168 | return NULL; | |
e47c9093 | 169 | |
0c287589 JS |
170 | /* |
171 | * If this command is for fabric controller and HBA running | |
172 | * in FIP mode send FLOGI, FDISC and LOGO as FIP frames. | |
173 | */ | |
174 | if ((did == Fabric_DID) && | |
45ed1190 | 175 | (phba->hba_flag & HBA_FIP_SUPPORT) && |
0c287589 JS |
176 | ((elscmd == ELS_CMD_FLOGI) || |
177 | (elscmd == ELS_CMD_FDISC) || | |
178 | (elscmd == ELS_CMD_LOGO))) | |
c868595d JS |
179 | switch (elscmd) { |
180 | case ELS_CMD_FLOGI: | |
f0d9bccc JS |
181 | elsiocb->iocb_flag |= |
182 | ((LPFC_ELS_ID_FLOGI << LPFC_FIP_ELS_ID_SHIFT) | |
c868595d JS |
183 | & LPFC_FIP_ELS_ID_MASK); |
184 | break; | |
185 | case ELS_CMD_FDISC: | |
f0d9bccc JS |
186 | elsiocb->iocb_flag |= |
187 | ((LPFC_ELS_ID_FDISC << LPFC_FIP_ELS_ID_SHIFT) | |
c868595d JS |
188 | & LPFC_FIP_ELS_ID_MASK); |
189 | break; | |
190 | case ELS_CMD_LOGO: | |
f0d9bccc JS |
191 | elsiocb->iocb_flag |= |
192 | ((LPFC_ELS_ID_LOGO << LPFC_FIP_ELS_ID_SHIFT) | |
c868595d JS |
193 | & LPFC_FIP_ELS_ID_MASK); |
194 | break; | |
195 | } | |
0c287589 | 196 | else |
c868595d | 197 | elsiocb->iocb_flag &= ~LPFC_FIP_ELS_ID_MASK; |
0c287589 | 198 | |
dea3101e JB |
199 | icmd = &elsiocb->iocb; |
200 | ||
201 | /* fill in BDEs for command */ | |
202 | /* Allocate buffer for command payload */ | |
98c9ea5c JS |
203 | pcmd = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
204 | if (pcmd) | |
205 | pcmd->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &pcmd->phys); | |
fa4066b6 JS |
206 | if (!pcmd || !pcmd->virt) |
207 | goto els_iocb_free_pcmb_exit; | |
dea3101e JB |
208 | |
209 | INIT_LIST_HEAD(&pcmd->list); | |
210 | ||
211 | /* Allocate buffer for response payload */ | |
212 | if (expectRsp) { | |
92d7f7b0 | 213 | prsp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
dea3101e JB |
214 | if (prsp) |
215 | prsp->virt = lpfc_mbuf_alloc(phba, MEM_PRI, | |
216 | &prsp->phys); | |
fa4066b6 JS |
217 | if (!prsp || !prsp->virt) |
218 | goto els_iocb_free_prsp_exit; | |
dea3101e | 219 | INIT_LIST_HEAD(&prsp->list); |
e47c9093 | 220 | } else |
dea3101e | 221 | prsp = NULL; |
dea3101e JB |
222 | |
223 | /* Allocate buffer for Buffer ptr list */ | |
92d7f7b0 | 224 | pbuflist = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
dea3101e | 225 | if (pbuflist) |
ed957684 JS |
226 | pbuflist->virt = lpfc_mbuf_alloc(phba, MEM_PRI, |
227 | &pbuflist->phys); | |
fa4066b6 JS |
228 | if (!pbuflist || !pbuflist->virt) |
229 | goto els_iocb_free_pbuf_exit; | |
dea3101e JB |
230 | |
231 | INIT_LIST_HEAD(&pbuflist->list); | |
232 | ||
233 | icmd->un.elsreq64.bdl.addrHigh = putPaddrHigh(pbuflist->phys); | |
234 | icmd->un.elsreq64.bdl.addrLow = putPaddrLow(pbuflist->phys); | |
34b02dcd | 235 | icmd->un.elsreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; |
2e0fef85 | 236 | icmd->un.elsreq64.remoteID = did; /* DID */ |
dea3101e | 237 | if (expectRsp) { |
92d7f7b0 | 238 | icmd->un.elsreq64.bdl.bdeSize = (2 * sizeof(struct ulp_bde64)); |
dea3101e | 239 | icmd->ulpCommand = CMD_ELS_REQUEST64_CR; |
2680eeaa | 240 | icmd->ulpTimeout = phba->fc_ratov * 2; |
dea3101e | 241 | } else { |
92d7f7b0 | 242 | icmd->un.elsreq64.bdl.bdeSize = sizeof(struct ulp_bde64); |
dea3101e JB |
243 | icmd->ulpCommand = CMD_XMIT_ELS_RSP64_CX; |
244 | } | |
dea3101e JB |
245 | icmd->ulpBdeCount = 1; |
246 | icmd->ulpLe = 1; | |
247 | icmd->ulpClass = CLASS3; | |
248 | ||
92d7f7b0 JS |
249 | if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { |
250 | icmd->un.elsreq64.myID = vport->fc_myDID; | |
251 | ||
252 | /* For ELS_REQUEST64_CR, use the VPI by default */ | |
da0436e9 | 253 | icmd->ulpContext = vport->vpi + phba->vpi_base; |
92d7f7b0 | 254 | icmd->ulpCt_h = 0; |
eada272d JS |
255 | /* The CT field must be 0=INVALID_RPI for the ECHO cmd */ |
256 | if (elscmd == ELS_CMD_ECHO) | |
257 | icmd->ulpCt_l = 0; /* context = invalid RPI */ | |
258 | else | |
259 | icmd->ulpCt_l = 1; /* context = VPI */ | |
92d7f7b0 JS |
260 | } |
261 | ||
dea3101e JB |
262 | bpl = (struct ulp_bde64 *) pbuflist->virt; |
263 | bpl->addrLow = le32_to_cpu(putPaddrLow(pcmd->phys)); | |
264 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(pcmd->phys)); | |
265 | bpl->tus.f.bdeSize = cmdSize; | |
266 | bpl->tus.f.bdeFlags = 0; | |
267 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
268 | ||
269 | if (expectRsp) { | |
270 | bpl++; | |
271 | bpl->addrLow = le32_to_cpu(putPaddrLow(prsp->phys)); | |
272 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(prsp->phys)); | |
273 | bpl->tus.f.bdeSize = FCELSSIZE; | |
34b02dcd | 274 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; |
dea3101e JB |
275 | bpl->tus.w = le32_to_cpu(bpl->tus.w); |
276 | } | |
277 | ||
fa4066b6 | 278 | /* prevent preparing iocb with NULL ndlp reference */ |
51ef4c26 | 279 | elsiocb->context1 = lpfc_nlp_get(ndlp); |
fa4066b6 JS |
280 | if (!elsiocb->context1) |
281 | goto els_iocb_free_pbuf_exit; | |
329f9bc7 JS |
282 | elsiocb->context2 = pcmd; |
283 | elsiocb->context3 = pbuflist; | |
dea3101e | 284 | elsiocb->retry = retry; |
2e0fef85 | 285 | elsiocb->vport = vport; |
dea3101e JB |
286 | elsiocb->drvrTimeout = (phba->fc_ratov << 1) + LPFC_DRVR_TIMEOUT; |
287 | ||
288 | if (prsp) { | |
289 | list_add(&prsp->list, &pcmd->list); | |
290 | } | |
dea3101e JB |
291 | if (expectRsp) { |
292 | /* Xmit ELS command <elsCmd> to remote NPORT <did> */ | |
e8b62011 JS |
293 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
294 | "0116 Xmit ELS command x%x to remote " | |
295 | "NPORT x%x I/O tag: x%x, port state: x%x\n", | |
296 | elscmd, did, elsiocb->iotag, | |
297 | vport->port_state); | |
dea3101e JB |
298 | } else { |
299 | /* Xmit ELS response <elsCmd> to remote NPORT <did> */ | |
e8b62011 JS |
300 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
301 | "0117 Xmit ELS response x%x to remote " | |
302 | "NPORT x%x I/O tag: x%x, size: x%x\n", | |
303 | elscmd, ndlp->nlp_DID, elsiocb->iotag, | |
304 | cmdSize); | |
dea3101e | 305 | } |
c9f8735b | 306 | return elsiocb; |
dea3101e | 307 | |
fa4066b6 | 308 | els_iocb_free_pbuf_exit: |
eaf15d5b JS |
309 | if (expectRsp) |
310 | lpfc_mbuf_free(phba, prsp->virt, prsp->phys); | |
fa4066b6 JS |
311 | kfree(pbuflist); |
312 | ||
313 | els_iocb_free_prsp_exit: | |
314 | lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys); | |
315 | kfree(prsp); | |
316 | ||
317 | els_iocb_free_pcmb_exit: | |
318 | kfree(pcmd); | |
319 | lpfc_sli_release_iocbq(phba, elsiocb); | |
320 | return NULL; | |
321 | } | |
dea3101e | 322 | |
e59058c4 | 323 | /** |
3621a710 | 324 | * lpfc_issue_fabric_reglogin - Issue fabric registration login for a vport |
e59058c4 JS |
325 | * @vport: pointer to a host virtual N_Port data structure. |
326 | * | |
327 | * This routine issues a fabric registration login for a @vport. An | |
328 | * active ndlp node with Fabric_DID must already exist for this @vport. | |
329 | * The routine invokes two mailbox commands to carry out fabric registration | |
330 | * login through the HBA firmware: the first mailbox command requests the | |
331 | * HBA to perform link configuration for the @vport; and the second mailbox | |
332 | * command requests the HBA to perform the actual fabric registration login | |
333 | * with the @vport. | |
334 | * | |
335 | * Return code | |
336 | * 0 - successfully issued fabric registration login for @vport | |
337 | * -ENXIO -- failed to issue fabric registration login for @vport | |
338 | **/ | |
3772a991 | 339 | int |
92d7f7b0 | 340 | lpfc_issue_fabric_reglogin(struct lpfc_vport *vport) |
dea3101e | 341 | { |
2e0fef85 | 342 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 343 | LPFC_MBOXQ_t *mbox; |
14691150 | 344 | struct lpfc_dmabuf *mp; |
92d7f7b0 JS |
345 | struct lpfc_nodelist *ndlp; |
346 | struct serv_parm *sp; | |
dea3101e | 347 | int rc; |
98c9ea5c | 348 | int err = 0; |
dea3101e | 349 | |
92d7f7b0 JS |
350 | sp = &phba->fc_fabparam; |
351 | ndlp = lpfc_findnode_did(vport, Fabric_DID); | |
e47c9093 | 352 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { |
98c9ea5c | 353 | err = 1; |
92d7f7b0 | 354 | goto fail; |
98c9ea5c | 355 | } |
92d7f7b0 JS |
356 | |
357 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
98c9ea5c JS |
358 | if (!mbox) { |
359 | err = 2; | |
92d7f7b0 | 360 | goto fail; |
98c9ea5c | 361 | } |
92d7f7b0 JS |
362 | |
363 | vport->port_state = LPFC_FABRIC_CFG_LINK; | |
364 | lpfc_config_link(phba, mbox); | |
365 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
366 | mbox->vport = vport; | |
367 | ||
0b727fea | 368 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
98c9ea5c JS |
369 | if (rc == MBX_NOT_FINISHED) { |
370 | err = 3; | |
92d7f7b0 | 371 | goto fail_free_mbox; |
98c9ea5c | 372 | } |
92d7f7b0 JS |
373 | |
374 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
98c9ea5c JS |
375 | if (!mbox) { |
376 | err = 4; | |
92d7f7b0 | 377 | goto fail; |
98c9ea5c | 378 | } |
4042629e JS |
379 | rc = lpfc_reg_rpi(phba, vport->vpi, Fabric_DID, (uint8_t *)sp, mbox, |
380 | ndlp->nlp_rpi); | |
98c9ea5c JS |
381 | if (rc) { |
382 | err = 5; | |
92d7f7b0 | 383 | goto fail_free_mbox; |
98c9ea5c | 384 | } |
92d7f7b0 JS |
385 | |
386 | mbox->mbox_cmpl = lpfc_mbx_cmpl_fabric_reg_login; | |
387 | mbox->vport = vport; | |
e47c9093 JS |
388 | /* increment the reference count on ndlp to hold reference |
389 | * for the callback routine. | |
390 | */ | |
92d7f7b0 JS |
391 | mbox->context2 = lpfc_nlp_get(ndlp); |
392 | ||
0b727fea | 393 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
98c9ea5c JS |
394 | if (rc == MBX_NOT_FINISHED) { |
395 | err = 6; | |
92d7f7b0 | 396 | goto fail_issue_reg_login; |
98c9ea5c | 397 | } |
92d7f7b0 JS |
398 | |
399 | return 0; | |
400 | ||
401 | fail_issue_reg_login: | |
e47c9093 JS |
402 | /* decrement the reference count on ndlp just incremented |
403 | * for the failed mbox command. | |
404 | */ | |
92d7f7b0 JS |
405 | lpfc_nlp_put(ndlp); |
406 | mp = (struct lpfc_dmabuf *) mbox->context1; | |
407 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
408 | kfree(mp); | |
409 | fail_free_mbox: | |
410 | mempool_free(mbox, phba->mbox_mem_pool); | |
411 | ||
412 | fail: | |
413 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
e8b62011 | 414 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
98c9ea5c | 415 | "0249 Cannot issue Register Fabric login: Err %d\n", err); |
92d7f7b0 JS |
416 | return -ENXIO; |
417 | } | |
418 | ||
6fb120a7 JS |
419 | /** |
420 | * lpfc_issue_reg_vfi - Register VFI for this vport's fabric login | |
421 | * @vport: pointer to a host virtual N_Port data structure. | |
422 | * | |
423 | * This routine issues a REG_VFI mailbox for the vfi, vpi, fcfi triplet for | |
424 | * the @vport. This mailbox command is necessary for FCoE only. | |
425 | * | |
426 | * Return code | |
427 | * 0 - successfully issued REG_VFI for @vport | |
428 | * A failure code otherwise. | |
429 | **/ | |
430 | static int | |
431 | lpfc_issue_reg_vfi(struct lpfc_vport *vport) | |
432 | { | |
433 | struct lpfc_hba *phba = vport->phba; | |
434 | LPFC_MBOXQ_t *mboxq; | |
435 | struct lpfc_nodelist *ndlp; | |
436 | struct serv_parm *sp; | |
437 | struct lpfc_dmabuf *dmabuf; | |
438 | int rc = 0; | |
439 | ||
440 | sp = &phba->fc_fabparam; | |
441 | ndlp = lpfc_findnode_did(vport, Fabric_DID); | |
442 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { | |
443 | rc = -ENODEV; | |
444 | goto fail; | |
445 | } | |
446 | ||
447 | dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
448 | if (!dmabuf) { | |
449 | rc = -ENOMEM; | |
450 | goto fail; | |
451 | } | |
452 | dmabuf->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &dmabuf->phys); | |
453 | if (!dmabuf->virt) { | |
454 | rc = -ENOMEM; | |
455 | goto fail_free_dmabuf; | |
456 | } | |
457 | mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
458 | if (!mboxq) { | |
459 | rc = -ENOMEM; | |
460 | goto fail_free_coherent; | |
461 | } | |
462 | vport->port_state = LPFC_FABRIC_CFG_LINK; | |
463 | memcpy(dmabuf->virt, &phba->fc_fabparam, sizeof(vport->fc_sparam)); | |
464 | lpfc_reg_vfi(mboxq, vport, dmabuf->phys); | |
465 | mboxq->mbox_cmpl = lpfc_mbx_cmpl_reg_vfi; | |
466 | mboxq->vport = vport; | |
467 | mboxq->context1 = dmabuf; | |
468 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); | |
469 | if (rc == MBX_NOT_FINISHED) { | |
470 | rc = -ENXIO; | |
471 | goto fail_free_mbox; | |
472 | } | |
473 | return 0; | |
474 | ||
475 | fail_free_mbox: | |
476 | mempool_free(mboxq, phba->mbox_mem_pool); | |
477 | fail_free_coherent: | |
478 | lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys); | |
479 | fail_free_dmabuf: | |
480 | kfree(dmabuf); | |
481 | fail: | |
482 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
483 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
484 | "0289 Issue Register VFI failed: Err %d\n", rc); | |
485 | return rc; | |
486 | } | |
487 | ||
92494144 JS |
488 | /** |
489 | * lpfc_check_clean_addr_bit - Check whether assigned FCID is clean. | |
490 | * @vport: pointer to a host virtual N_Port data structure. | |
491 | * @sp: pointer to service parameter data structure. | |
492 | * | |
493 | * This routine is called from FLOGI/FDISC completion handler functions. | |
494 | * lpfc_check_clean_addr_bit return 1 when FCID/Fabric portname/ Fabric | |
495 | * node nodename is changed in the completion service parameter else return | |
496 | * 0. This function also set flag in the vport data structure to delay | |
497 | * NP_Port discovery after the FLOGI/FDISC completion if Clean address bit | |
498 | * in FLOGI/FDISC response is cleared and FCID/Fabric portname/ Fabric | |
499 | * node nodename is changed in the completion service parameter. | |
500 | * | |
501 | * Return code | |
502 | * 0 - FCID and Fabric Nodename and Fabric portname is not changed. | |
503 | * 1 - FCID or Fabric Nodename or Fabric portname is changed. | |
504 | * | |
505 | **/ | |
506 | static uint8_t | |
507 | lpfc_check_clean_addr_bit(struct lpfc_vport *vport, | |
508 | struct serv_parm *sp) | |
509 | { | |
510 | uint8_t fabric_param_changed = 0; | |
511 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
512 | ||
513 | if ((vport->fc_prevDID != vport->fc_myDID) || | |
514 | memcmp(&vport->fabric_portname, &sp->portName, | |
515 | sizeof(struct lpfc_name)) || | |
516 | memcmp(&vport->fabric_nodename, &sp->nodeName, | |
517 | sizeof(struct lpfc_name))) | |
518 | fabric_param_changed = 1; | |
519 | ||
520 | /* | |
521 | * Word 1 Bit 31 in common service parameter is overloaded. | |
522 | * Word 1 Bit 31 in FLOGI request is multiple NPort request | |
523 | * Word 1 Bit 31 in FLOGI response is clean address bit | |
524 | * | |
525 | * If fabric parameter is changed and clean address bit is | |
526 | * cleared delay nport discovery if | |
527 | * - vport->fc_prevDID != 0 (not initial discovery) OR | |
528 | * - lpfc_delay_discovery module parameter is set. | |
529 | */ | |
530 | if (fabric_param_changed && !sp->cmn.clean_address_bit && | |
531 | (vport->fc_prevDID || lpfc_delay_discovery)) { | |
532 | spin_lock_irq(shost->host_lock); | |
533 | vport->fc_flag |= FC_DISC_DELAYED; | |
534 | spin_unlock_irq(shost->host_lock); | |
535 | } | |
536 | ||
537 | return fabric_param_changed; | |
538 | } | |
539 | ||
540 | ||
e59058c4 | 541 | /** |
3621a710 | 542 | * lpfc_cmpl_els_flogi_fabric - Completion function for flogi to a fabric port |
e59058c4 JS |
543 | * @vport: pointer to a host virtual N_Port data structure. |
544 | * @ndlp: pointer to a node-list data structure. | |
545 | * @sp: pointer to service parameter data structure. | |
546 | * @irsp: pointer to the IOCB within the lpfc response IOCB. | |
547 | * | |
548 | * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback | |
549 | * function to handle the completion of a Fabric Login (FLOGI) into a fabric | |
550 | * port in a fabric topology. It properly sets up the parameters to the @ndlp | |
551 | * from the IOCB response. It also check the newly assigned N_Port ID to the | |
552 | * @vport against the previously assigned N_Port ID. If it is different from | |
553 | * the previously assigned Destination ID (DID), the lpfc_unreg_rpi() routine | |
554 | * is invoked on all the remaining nodes with the @vport to unregister the | |
555 | * Remote Port Indicators (RPIs). Finally, the lpfc_issue_fabric_reglogin() | |
556 | * is invoked to register login to the fabric. | |
557 | * | |
558 | * Return code | |
559 | * 0 - Success (currently, always return 0) | |
560 | **/ | |
92d7f7b0 JS |
561 | static int |
562 | lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, | |
563 | struct serv_parm *sp, IOCB_t *irsp) | |
564 | { | |
565 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
566 | struct lpfc_hba *phba = vport->phba; | |
567 | struct lpfc_nodelist *np; | |
568 | struct lpfc_nodelist *next_np; | |
92494144 | 569 | uint8_t fabric_param_changed; |
92d7f7b0 | 570 | |
2e0fef85 JS |
571 | spin_lock_irq(shost->host_lock); |
572 | vport->fc_flag |= FC_FABRIC; | |
573 | spin_unlock_irq(shost->host_lock); | |
dea3101e JB |
574 | |
575 | phba->fc_edtov = be32_to_cpu(sp->cmn.e_d_tov); | |
576 | if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */ | |
577 | phba->fc_edtov = (phba->fc_edtov + 999999) / 1000000; | |
578 | ||
12265f68 | 579 | phba->fc_edtovResol = sp->cmn.edtovResolution; |
dea3101e JB |
580 | phba->fc_ratov = (be32_to_cpu(sp->cmn.w2.r_a_tov) + 999) / 1000; |
581 | ||
76a95d75 | 582 | if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { |
2e0fef85 JS |
583 | spin_lock_irq(shost->host_lock); |
584 | vport->fc_flag |= FC_PUBLIC_LOOP; | |
585 | spin_unlock_irq(shost->host_lock); | |
dea3101e JB |
586 | } |
587 | ||
2e0fef85 | 588 | vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID; |
dea3101e | 589 | memcpy(&ndlp->nlp_portname, &sp->portName, sizeof(struct lpfc_name)); |
92d7f7b0 | 590 | memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof(struct lpfc_name)); |
dea3101e JB |
591 | ndlp->nlp_class_sup = 0; |
592 | if (sp->cls1.classValid) | |
593 | ndlp->nlp_class_sup |= FC_COS_CLASS1; | |
594 | if (sp->cls2.classValid) | |
595 | ndlp->nlp_class_sup |= FC_COS_CLASS2; | |
596 | if (sp->cls3.classValid) | |
597 | ndlp->nlp_class_sup |= FC_COS_CLASS3; | |
598 | if (sp->cls4.classValid) | |
599 | ndlp->nlp_class_sup |= FC_COS_CLASS4; | |
600 | ndlp->nlp_maxframe = ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | | |
601 | sp->cmn.bbRcvSizeLsb; | |
92494144 JS |
602 | |
603 | fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp); | |
604 | memcpy(&vport->fabric_portname, &sp->portName, | |
605 | sizeof(struct lpfc_name)); | |
606 | memcpy(&vport->fabric_nodename, &sp->nodeName, | |
607 | sizeof(struct lpfc_name)); | |
dea3101e JB |
608 | memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); |
609 | ||
92d7f7b0 JS |
610 | if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { |
611 | if (sp->cmn.response_multiple_NPort) { | |
e8b62011 JS |
612 | lpfc_printf_vlog(vport, KERN_WARNING, |
613 | LOG_ELS | LOG_VPORT, | |
614 | "1816 FLOGI NPIV supported, " | |
615 | "response data 0x%x\n", | |
616 | sp->cmn.response_multiple_NPort); | |
92d7f7b0 | 617 | phba->link_flag |= LS_NPIV_FAB_SUPPORTED; |
92d7f7b0 JS |
618 | } else { |
619 | /* Because we asked f/w for NPIV it still expects us | |
e8b62011 JS |
620 | to call reg_vnpid atleast for the physcial host */ |
621 | lpfc_printf_vlog(vport, KERN_WARNING, | |
622 | LOG_ELS | LOG_VPORT, | |
623 | "1817 Fabric does not support NPIV " | |
624 | "- configuring single port mode.\n"); | |
92d7f7b0 JS |
625 | phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED; |
626 | } | |
627 | } | |
dea3101e | 628 | |
92494144 | 629 | if (fabric_param_changed && |
92d7f7b0 | 630 | !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { |
dea3101e | 631 | |
92d7f7b0 JS |
632 | /* If our NportID changed, we need to ensure all |
633 | * remaining NPORTs get unreg_login'ed. | |
634 | */ | |
635 | list_for_each_entry_safe(np, next_np, | |
636 | &vport->fc_nodes, nlp_listp) { | |
d7c255b2 | 637 | if (!NLP_CHK_NODE_ACT(np)) |
e47c9093 | 638 | continue; |
92d7f7b0 JS |
639 | if ((np->nlp_state != NLP_STE_NPR_NODE) || |
640 | !(np->nlp_flag & NLP_NPR_ADISC)) | |
641 | continue; | |
642 | spin_lock_irq(shost->host_lock); | |
643 | np->nlp_flag &= ~NLP_NPR_ADISC; | |
644 | spin_unlock_irq(shost->host_lock); | |
645 | lpfc_unreg_rpi(vport, np); | |
646 | } | |
78730cfe | 647 | lpfc_cleanup_pending_mbox(vport); |
5af5eee7 JS |
648 | |
649 | if (phba->sli_rev == LPFC_SLI_REV4) | |
650 | lpfc_sli4_unreg_all_rpis(vport); | |
651 | ||
92d7f7b0 JS |
652 | if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { |
653 | lpfc_mbx_unreg_vpi(vport); | |
09372820 | 654 | spin_lock_irq(shost->host_lock); |
92d7f7b0 | 655 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; |
09372820 | 656 | spin_unlock_irq(shost->host_lock); |
92d7f7b0 | 657 | } |
ecfd03c6 JS |
658 | /* |
659 | * If VPI is unreged, driver need to do INIT_VPI | |
660 | * before re-registering | |
661 | */ | |
662 | if (phba->sli_rev == LPFC_SLI_REV4) { | |
663 | spin_lock_irq(shost->host_lock); | |
664 | vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; | |
665 | spin_unlock_irq(shost->host_lock); | |
666 | } | |
38b92ef8 JS |
667 | } else if ((phba->sli_rev == LPFC_SLI_REV4) && |
668 | !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { | |
669 | /* | |
670 | * Driver needs to re-reg VPI in order for f/w | |
671 | * to update the MAC address. | |
672 | */ | |
673 | lpfc_register_new_vport(phba, vport, ndlp); | |
674 | return 0; | |
92d7f7b0 | 675 | } |
dea3101e | 676 | |
6fb120a7 JS |
677 | if (phba->sli_rev < LPFC_SLI_REV4) { |
678 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_REG_LOGIN_ISSUE); | |
679 | if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED && | |
680 | vport->fc_flag & FC_VPORT_NEEDS_REG_VPI) | |
681 | lpfc_register_new_vport(phba, vport, ndlp); | |
682 | else | |
683 | lpfc_issue_fabric_reglogin(vport); | |
684 | } else { | |
685 | ndlp->nlp_type |= NLP_FABRIC; | |
686 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); | |
695a814e JS |
687 | if ((!(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) && |
688 | (vport->vpi_state & LPFC_VPI_REGISTERED)) { | |
6fb120a7 JS |
689 | lpfc_start_fdiscs(phba); |
690 | lpfc_do_scr_ns_plogi(phba, vport); | |
695a814e | 691 | } else if (vport->fc_flag & FC_VFI_REGISTERED) |
ecfd03c6 | 692 | lpfc_issue_init_vpi(vport); |
695a814e | 693 | else |
6fb120a7 | 694 | lpfc_issue_reg_vfi(vport); |
92d7f7b0 | 695 | } |
dea3101e | 696 | return 0; |
dea3101e | 697 | } |
e59058c4 | 698 | /** |
3621a710 | 699 | * lpfc_cmpl_els_flogi_nport - Completion function for flogi to an N_Port |
e59058c4 JS |
700 | * @vport: pointer to a host virtual N_Port data structure. |
701 | * @ndlp: pointer to a node-list data structure. | |
702 | * @sp: pointer to service parameter data structure. | |
703 | * | |
704 | * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback | |
705 | * function to handle the completion of a Fabric Login (FLOGI) into an N_Port | |
706 | * in a point-to-point topology. First, the @vport's N_Port Name is compared | |
707 | * with the received N_Port Name: if the @vport's N_Port Name is greater than | |
708 | * the received N_Port Name lexicographically, this node shall assign local | |
709 | * N_Port ID (PT2PT_LocalID: 1) and remote N_Port ID (PT2PT_RemoteID: 2) and | |
710 | * will send out Port Login (PLOGI) with the N_Port IDs assigned. Otherwise, | |
711 | * this node shall just wait for the remote node to issue PLOGI and assign | |
712 | * N_Port IDs. | |
713 | * | |
714 | * Return code | |
715 | * 0 - Success | |
716 | * -ENXIO - Fail | |
717 | **/ | |
dea3101e | 718 | static int |
2e0fef85 JS |
719 | lpfc_cmpl_els_flogi_nport(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
720 | struct serv_parm *sp) | |
dea3101e | 721 | { |
2e0fef85 JS |
722 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
723 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
724 | LPFC_MBOXQ_t *mbox; |
725 | int rc; | |
726 | ||
2e0fef85 JS |
727 | spin_lock_irq(shost->host_lock); |
728 | vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
729 | spin_unlock_irq(shost->host_lock); | |
dea3101e JB |
730 | |
731 | phba->fc_edtov = FF_DEF_EDTOV; | |
732 | phba->fc_ratov = FF_DEF_RATOV; | |
2e0fef85 | 733 | rc = memcmp(&vport->fc_portname, &sp->portName, |
92d7f7b0 | 734 | sizeof(vport->fc_portname)); |
dea3101e JB |
735 | if (rc >= 0) { |
736 | /* This side will initiate the PLOGI */ | |
2e0fef85 JS |
737 | spin_lock_irq(shost->host_lock); |
738 | vport->fc_flag |= FC_PT2PT_PLOGI; | |
739 | spin_unlock_irq(shost->host_lock); | |
dea3101e JB |
740 | |
741 | /* | |
742 | * N_Port ID cannot be 0, set our to LocalID the other | |
743 | * side will be RemoteID. | |
744 | */ | |
745 | ||
746 | /* not equal */ | |
747 | if (rc) | |
2e0fef85 | 748 | vport->fc_myDID = PT2PT_LocalID; |
dea3101e JB |
749 | |
750 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
751 | if (!mbox) | |
752 | goto fail; | |
753 | ||
754 | lpfc_config_link(phba, mbox); | |
755 | ||
756 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
ed957684 | 757 | mbox->vport = vport; |
0b727fea | 758 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
dea3101e JB |
759 | if (rc == MBX_NOT_FINISHED) { |
760 | mempool_free(mbox, phba->mbox_mem_pool); | |
761 | goto fail; | |
762 | } | |
e47c9093 JS |
763 | /* Decrement ndlp reference count indicating that ndlp can be |
764 | * safely released when other references to it are done. | |
765 | */ | |
329f9bc7 | 766 | lpfc_nlp_put(ndlp); |
dea3101e | 767 | |
2e0fef85 | 768 | ndlp = lpfc_findnode_did(vport, PT2PT_RemoteID); |
dea3101e JB |
769 | if (!ndlp) { |
770 | /* | |
771 | * Cannot find existing Fabric ndlp, so allocate a | |
772 | * new one | |
773 | */ | |
774 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
775 | if (!ndlp) | |
776 | goto fail; | |
2e0fef85 | 777 | lpfc_nlp_init(vport, ndlp, PT2PT_RemoteID); |
e47c9093 JS |
778 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { |
779 | ndlp = lpfc_enable_node(vport, ndlp, | |
780 | NLP_STE_UNUSED_NODE); | |
781 | if(!ndlp) | |
782 | goto fail; | |
dea3101e JB |
783 | } |
784 | ||
785 | memcpy(&ndlp->nlp_portname, &sp->portName, | |
2e0fef85 | 786 | sizeof(struct lpfc_name)); |
dea3101e | 787 | memcpy(&ndlp->nlp_nodename, &sp->nodeName, |
2e0fef85 | 788 | sizeof(struct lpfc_name)); |
e47c9093 | 789 | /* Set state will put ndlp onto node list if not already done */ |
2e0fef85 JS |
790 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
791 | spin_lock_irq(shost->host_lock); | |
dea3101e | 792 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 | 793 | spin_unlock_irq(shost->host_lock); |
e47c9093 JS |
794 | } else |
795 | /* This side will wait for the PLOGI, decrement ndlp reference | |
796 | * count indicating that ndlp can be released when other | |
797 | * references to it are done. | |
798 | */ | |
329f9bc7 | 799 | lpfc_nlp_put(ndlp); |
dea3101e | 800 | |
09372820 JS |
801 | /* If we are pt2pt with another NPort, force NPIV off! */ |
802 | phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED; | |
803 | ||
2e0fef85 JS |
804 | spin_lock_irq(shost->host_lock); |
805 | vport->fc_flag |= FC_PT2PT; | |
806 | spin_unlock_irq(shost->host_lock); | |
dea3101e JB |
807 | |
808 | /* Start discovery - this should just do CLEAR_LA */ | |
2e0fef85 | 809 | lpfc_disc_start(vport); |
dea3101e | 810 | return 0; |
92d7f7b0 | 811 | fail: |
dea3101e JB |
812 | return -ENXIO; |
813 | } | |
814 | ||
e59058c4 | 815 | /** |
3621a710 | 816 | * lpfc_cmpl_els_flogi - Completion callback function for flogi |
e59058c4 JS |
817 | * @phba: pointer to lpfc hba data structure. |
818 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
819 | * @rspiocb: pointer to lpfc response iocb data structure. | |
820 | * | |
821 | * This routine is the top-level completion callback function for issuing | |
822 | * a Fabric Login (FLOGI) command. If the response IOCB reported error, | |
823 | * the lpfc_els_retry() routine shall be invoked to retry the FLOGI. If | |
824 | * retry has been made (either immediately or delayed with lpfc_els_retry() | |
825 | * returning 1), the command IOCB will be released and function returned. | |
826 | * If the retry attempt has been given up (possibly reach the maximum | |
827 | * number of retries), one additional decrement of ndlp reference shall be | |
828 | * invoked before going out after releasing the command IOCB. This will | |
829 | * actually release the remote node (Note, lpfc_els_free_iocb() will also | |
830 | * invoke one decrement of ndlp reference count). If no error reported in | |
831 | * the IOCB status, the command Port ID field is used to determine whether | |
832 | * this is a point-to-point topology or a fabric topology: if the Port ID | |
833 | * field is assigned, it is a fabric topology; otherwise, it is a | |
834 | * point-to-point topology. The routine lpfc_cmpl_els_flogi_fabric() or | |
835 | * lpfc_cmpl_els_flogi_nport() shall be invoked accordingly to handle the | |
836 | * specific topology completion conditions. | |
837 | **/ | |
dea3101e | 838 | static void |
329f9bc7 JS |
839 | lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
840 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 841 | { |
2e0fef85 JS |
842 | struct lpfc_vport *vport = cmdiocb->vport; |
843 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e JB |
844 | IOCB_t *irsp = &rspiocb->iocb; |
845 | struct lpfc_nodelist *ndlp = cmdiocb->context1; | |
846 | struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp; | |
847 | struct serv_parm *sp; | |
0c9ab6f5 | 848 | uint16_t fcf_index; |
dea3101e JB |
849 | int rc; |
850 | ||
851 | /* Check to see if link went down during discovery */ | |
2e0fef85 | 852 | if (lpfc_els_chk_latt(vport)) { |
fa4066b6 JS |
853 | /* One additional decrement on node reference count to |
854 | * trigger the release of the node | |
855 | */ | |
329f9bc7 | 856 | lpfc_nlp_put(ndlp); |
dea3101e JB |
857 | goto out; |
858 | } | |
859 | ||
858c9f6c JS |
860 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
861 | "FLOGI cmpl: status:x%x/x%x state:x%x", | |
862 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
863 | vport->port_state); | |
864 | ||
dea3101e | 865 | if (irsp->ulpStatus) { |
0c9ab6f5 | 866 | /* |
a93ff37a | 867 | * In case of FIP mode, perform roundrobin FCF failover |
0c9ab6f5 JS |
868 | * due to new FCF discovery |
869 | */ | |
870 | if ((phba->hba_flag & HBA_FIP_SUPPORT) && | |
dbb6b3ab JS |
871 | (phba->fcf.fcf_flag & FCF_DISCOVERY) && |
872 | (irsp->ulpStatus != IOSTAT_LOCAL_REJECT) && | |
873 | (irsp->un.ulpWord[4] != IOERR_SLI_ABORTED)) { | |
0c9ab6f5 | 874 | lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS, |
a93ff37a JS |
875 | "2611 FLOGI failed on FCF (x%x), " |
876 | "status:x%x/x%x, tmo:x%x, perform " | |
877 | "roundrobin FCF failover\n", | |
38b92ef8 JS |
878 | phba->fcf.current_rec.fcf_indx, |
879 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
880 | irsp->ulpTimeout); | |
0c9ab6f5 | 881 | fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba); |
a93ff37a JS |
882 | rc = lpfc_sli4_fcf_rr_next_proc(vport, fcf_index); |
883 | if (rc) | |
884 | goto out; | |
0c9ab6f5 JS |
885 | } |
886 | ||
38b92ef8 JS |
887 | /* FLOGI failure */ |
888 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
889 | "2858 FLOGI failure Status:x%x/x%x TMO:x%x\n", | |
890 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
891 | irsp->ulpTimeout); | |
892 | ||
dea3101e | 893 | /* Check for retry */ |
2e0fef85 | 894 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) |
dea3101e | 895 | goto out; |
2e0fef85 | 896 | |
76a95d75 JS |
897 | /* FLOGI failure */ |
898 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
899 | "0100 FLOGI failure Status:x%x/x%x TMO:x%x\n", | |
900 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
901 | irsp->ulpTimeout); | |
902 | ||
dea3101e | 903 | /* FLOGI failed, so there is no fabric */ |
2e0fef85 JS |
904 | spin_lock_irq(shost->host_lock); |
905 | vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
906 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 907 | |
329f9bc7 | 908 | /* If private loop, then allow max outstanding els to be |
dea3101e JB |
909 | * LPFC_MAX_DISC_THREADS (32). Scanning in the case of no |
910 | * alpa map would take too long otherwise. | |
911 | */ | |
912 | if (phba->alpa_map[0] == 0) { | |
3de2a653 | 913 | vport->cfg_discovery_threads = LPFC_MAX_DISC_THREADS; |
76a95d75 JS |
914 | if ((phba->sli_rev == LPFC_SLI_REV4) && |
915 | (!(vport->fc_flag & FC_VFI_REGISTERED) || | |
916 | (vport->fc_prevDID != vport->fc_myDID))) { | |
917 | if (vport->fc_flag & FC_VFI_REGISTERED) | |
918 | lpfc_sli4_unreg_all_rpis(vport); | |
919 | lpfc_issue_reg_vfi(vport); | |
920 | lpfc_nlp_put(ndlp); | |
921 | goto out; | |
922 | } | |
dea3101e | 923 | } |
dea3101e JB |
924 | goto flogifail; |
925 | } | |
695a814e JS |
926 | spin_lock_irq(shost->host_lock); |
927 | vport->fc_flag &= ~FC_VPORT_CVL_RCVD; | |
4b40c59e | 928 | vport->fc_flag &= ~FC_VPORT_LOGO_RCVD; |
695a814e | 929 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
930 | |
931 | /* | |
932 | * The FLogI succeeded. Sync the data for the CPU before | |
933 | * accessing it. | |
934 | */ | |
935 | prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); | |
936 | ||
937 | sp = prsp->virt + sizeof(uint32_t); | |
938 | ||
939 | /* FLOGI completes successfully */ | |
e8b62011 | 940 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
af901ca1 | 941 | "0101 FLOGI completes successfully " |
e8b62011 JS |
942 | "Data: x%x x%x x%x x%x\n", |
943 | irsp->un.ulpWord[4], sp->cmn.e_d_tov, | |
944 | sp->cmn.w2.r_a_tov, sp->cmn.edtovResolution); | |
dea3101e | 945 | |
2e0fef85 | 946 | if (vport->port_state == LPFC_FLOGI) { |
dea3101e JB |
947 | /* |
948 | * If Common Service Parameters indicate Nport | |
949 | * we are point to point, if Fport we are Fabric. | |
950 | */ | |
951 | if (sp->cmn.fPort) | |
2e0fef85 | 952 | rc = lpfc_cmpl_els_flogi_fabric(vport, ndlp, sp, irsp); |
76a95d75 | 953 | else if (!(phba->hba_flag & HBA_FCOE_MODE)) |
2e0fef85 | 954 | rc = lpfc_cmpl_els_flogi_nport(vport, ndlp, sp); |
dbb6b3ab JS |
955 | else { |
956 | lpfc_printf_vlog(vport, KERN_ERR, | |
957 | LOG_FIP | LOG_ELS, | |
958 | "2831 FLOGI response with cleared Fabric " | |
959 | "bit fcf_index 0x%x " | |
960 | "Switch Name %02x%02x%02x%02x%02x%02x%02x%02x " | |
961 | "Fabric Name " | |
962 | "%02x%02x%02x%02x%02x%02x%02x%02x\n", | |
963 | phba->fcf.current_rec.fcf_indx, | |
964 | phba->fcf.current_rec.switch_name[0], | |
965 | phba->fcf.current_rec.switch_name[1], | |
966 | phba->fcf.current_rec.switch_name[2], | |
967 | phba->fcf.current_rec.switch_name[3], | |
968 | phba->fcf.current_rec.switch_name[4], | |
969 | phba->fcf.current_rec.switch_name[5], | |
970 | phba->fcf.current_rec.switch_name[6], | |
971 | phba->fcf.current_rec.switch_name[7], | |
972 | phba->fcf.current_rec.fabric_name[0], | |
973 | phba->fcf.current_rec.fabric_name[1], | |
974 | phba->fcf.current_rec.fabric_name[2], | |
975 | phba->fcf.current_rec.fabric_name[3], | |
976 | phba->fcf.current_rec.fabric_name[4], | |
977 | phba->fcf.current_rec.fabric_name[5], | |
978 | phba->fcf.current_rec.fabric_name[6], | |
979 | phba->fcf.current_rec.fabric_name[7]); | |
980 | lpfc_nlp_put(ndlp); | |
981 | spin_lock_irq(&phba->hbalock); | |
982 | phba->fcf.fcf_flag &= ~FCF_DISCOVERY; | |
a93ff37a | 983 | phba->hba_flag &= ~(FCF_RR_INPROG | HBA_DEVLOSS_TMO); |
dbb6b3ab JS |
984 | spin_unlock_irq(&phba->hbalock); |
985 | goto out; | |
986 | } | |
0c9ab6f5 JS |
987 | if (!rc) { |
988 | /* Mark the FCF discovery process done */ | |
999d813f JS |
989 | if (phba->hba_flag & HBA_FIP_SUPPORT) |
990 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FIP | | |
991 | LOG_ELS, | |
a93ff37a JS |
992 | "2769 FLOGI to FCF (x%x) " |
993 | "completed successfully\n", | |
999d813f | 994 | phba->fcf.current_rec.fcf_indx); |
0c9ab6f5 JS |
995 | spin_lock_irq(&phba->hbalock); |
996 | phba->fcf.fcf_flag &= ~FCF_DISCOVERY; | |
a93ff37a | 997 | phba->hba_flag &= ~(FCF_RR_INPROG | HBA_DEVLOSS_TMO); |
0c9ab6f5 | 998 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 999 | goto out; |
0c9ab6f5 | 1000 | } |
dea3101e JB |
1001 | } |
1002 | ||
1003 | flogifail: | |
329f9bc7 | 1004 | lpfc_nlp_put(ndlp); |
dea3101e | 1005 | |
858c9f6c | 1006 | if (!lpfc_error_lost_link(irsp)) { |
dea3101e | 1007 | /* FLOGI failed, so just use loop map to make discovery list */ |
2e0fef85 | 1008 | lpfc_disc_list_loopmap(vport); |
dea3101e JB |
1009 | |
1010 | /* Start discovery */ | |
2e0fef85 | 1011 | lpfc_disc_start(vport); |
87af33fe JS |
1012 | } else if (((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) || |
1013 | ((irsp->un.ulpWord[4] != IOERR_SLI_ABORTED) && | |
1014 | (irsp->un.ulpWord[4] != IOERR_SLI_DOWN))) && | |
1015 | (phba->link_state != LPFC_CLEAR_LA)) { | |
1016 | /* If FLOGI failed enable link interrupt. */ | |
1017 | lpfc_issue_clear_la(phba, vport); | |
dea3101e | 1018 | } |
dea3101e JB |
1019 | out: |
1020 | lpfc_els_free_iocb(phba, cmdiocb); | |
1021 | } | |
1022 | ||
e59058c4 | 1023 | /** |
3621a710 | 1024 | * lpfc_issue_els_flogi - Issue an flogi iocb command for a vport |
e59058c4 JS |
1025 | * @vport: pointer to a host virtual N_Port data structure. |
1026 | * @ndlp: pointer to a node-list data structure. | |
1027 | * @retry: number of retries to the command IOCB. | |
1028 | * | |
1029 | * This routine issues a Fabric Login (FLOGI) Request ELS command | |
1030 | * for a @vport. The initiator service parameters are put into the payload | |
1031 | * of the FLOGI Request IOCB and the top-level callback function pointer | |
1032 | * to lpfc_cmpl_els_flogi() routine is put to the IOCB completion callback | |
1033 | * function field. The lpfc_issue_fabric_iocb routine is invoked to send | |
1034 | * out FLOGI ELS command with one outstanding fabric IOCB at a time. | |
1035 | * | |
1036 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
1037 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
1038 | * will be stored into the context1 field of the IOCB for the completion | |
1039 | * callback function to the FLOGI ELS command. | |
1040 | * | |
1041 | * Return code | |
1042 | * 0 - successfully issued flogi iocb for @vport | |
1043 | * 1 - failed to issue flogi iocb for @vport | |
1044 | **/ | |
dea3101e | 1045 | static int |
2e0fef85 | 1046 | lpfc_issue_els_flogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
dea3101e JB |
1047 | uint8_t retry) |
1048 | { | |
2e0fef85 | 1049 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
1050 | struct serv_parm *sp; |
1051 | IOCB_t *icmd; | |
1052 | struct lpfc_iocbq *elsiocb; | |
1053 | struct lpfc_sli_ring *pring; | |
1054 | uint8_t *pcmd; | |
1055 | uint16_t cmdsize; | |
1056 | uint32_t tmo; | |
1057 | int rc; | |
1058 | ||
1059 | pring = &phba->sli.ring[LPFC_ELS_RING]; | |
1060 | ||
92d7f7b0 | 1061 | cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); |
2e0fef85 JS |
1062 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
1063 | ndlp->nlp_DID, ELS_CMD_FLOGI); | |
92d7f7b0 | 1064 | |
488d1469 | 1065 | if (!elsiocb) |
c9f8735b | 1066 | return 1; |
dea3101e JB |
1067 | |
1068 | icmd = &elsiocb->iocb; | |
1069 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
1070 | ||
1071 | /* For FLOGI request, remainder of payload is service parameters */ | |
1072 | *((uint32_t *) (pcmd)) = ELS_CMD_FLOGI; | |
92d7f7b0 JS |
1073 | pcmd += sizeof(uint32_t); |
1074 | memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); | |
dea3101e JB |
1075 | sp = (struct serv_parm *) pcmd; |
1076 | ||
1077 | /* Setup CSPs accordingly for Fabric */ | |
1078 | sp->cmn.e_d_tov = 0; | |
1079 | sp->cmn.w2.r_a_tov = 0; | |
1080 | sp->cls1.classValid = 0; | |
1081 | sp->cls2.seqDelivery = 1; | |
1082 | sp->cls3.seqDelivery = 1; | |
1083 | if (sp->cmn.fcphLow < FC_PH3) | |
1084 | sp->cmn.fcphLow = FC_PH3; | |
1085 | if (sp->cmn.fcphHigh < FC_PH3) | |
1086 | sp->cmn.fcphHigh = FC_PH3; | |
1087 | ||
4042629e JS |
1088 | if ((phba->sli_rev == LPFC_SLI_REV4) && |
1089 | (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == | |
1090 | LPFC_SLI_INTF_IF_TYPE_0)) { | |
6fb120a7 JS |
1091 | elsiocb->iocb.ulpCt_h = ((SLI4_CT_FCFI >> 1) & 1); |
1092 | elsiocb->iocb.ulpCt_l = (SLI4_CT_FCFI & 1); | |
1093 | /* FLOGI needs to be 3 for WQE FCFI */ | |
1094 | /* Set the fcfi to the fcfi we registered with */ | |
1095 | elsiocb->iocb.ulpContext = phba->fcf.fcfi; | |
1096 | } else if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { | |
92d7f7b0 | 1097 | sp->cmn.request_multiple_Nport = 1; |
92d7f7b0 JS |
1098 | /* For FLOGI, Let FLOGI rsp set the NPortID for VPI 0 */ |
1099 | icmd->ulpCt_h = 1; | |
1100 | icmd->ulpCt_l = 0; | |
1101 | } | |
1102 | ||
76a95d75 | 1103 | if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) { |
858c9f6c JS |
1104 | icmd->un.elsreq64.myID = 0; |
1105 | icmd->un.elsreq64.fl = 1; | |
1106 | } | |
1107 | ||
dea3101e JB |
1108 | tmo = phba->fc_ratov; |
1109 | phba->fc_ratov = LPFC_DISC_FLOGI_TMO; | |
2e0fef85 | 1110 | lpfc_set_disctmo(vport); |
dea3101e JB |
1111 | phba->fc_ratov = tmo; |
1112 | ||
1113 | phba->fc_stat.elsXmitFLOGI++; | |
1114 | elsiocb->iocb_cmpl = lpfc_cmpl_els_flogi; | |
858c9f6c JS |
1115 | |
1116 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, | |
1117 | "Issue FLOGI: opt:x%x", | |
1118 | phba->sli3_options, 0, 0); | |
1119 | ||
92d7f7b0 | 1120 | rc = lpfc_issue_fabric_iocb(phba, elsiocb); |
dea3101e JB |
1121 | if (rc == IOCB_ERROR) { |
1122 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 1123 | return 1; |
dea3101e | 1124 | } |
c9f8735b | 1125 | return 0; |
dea3101e JB |
1126 | } |
1127 | ||
e59058c4 | 1128 | /** |
3621a710 | 1129 | * lpfc_els_abort_flogi - Abort all outstanding flogi iocbs |
e59058c4 JS |
1130 | * @phba: pointer to lpfc hba data structure. |
1131 | * | |
1132 | * This routine aborts all the outstanding Fabric Login (FLOGI) IOCBs | |
1133 | * with a @phba. This routine walks all the outstanding IOCBs on the txcmplq | |
1134 | * list and issues an abort IOCB commond on each outstanding IOCB that | |
1135 | * contains a active Fabric_DID ndlp. Note that this function is to issue | |
1136 | * the abort IOCB command on all the outstanding IOCBs, thus when this | |
1137 | * function returns, it does not guarantee all the IOCBs are actually aborted. | |
1138 | * | |
1139 | * Return code | |
3ad2f3fb | 1140 | * 0 - Successfully issued abort iocb on all outstanding flogis (Always 0) |
e59058c4 | 1141 | **/ |
dea3101e | 1142 | int |
2e0fef85 | 1143 | lpfc_els_abort_flogi(struct lpfc_hba *phba) |
dea3101e JB |
1144 | { |
1145 | struct lpfc_sli_ring *pring; | |
1146 | struct lpfc_iocbq *iocb, *next_iocb; | |
1147 | struct lpfc_nodelist *ndlp; | |
1148 | IOCB_t *icmd; | |
1149 | ||
1150 | /* Abort outstanding I/O on NPort <nlp_DID> */ | |
1151 | lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, | |
e8b62011 JS |
1152 | "0201 Abort outstanding I/O on NPort x%x\n", |
1153 | Fabric_DID); | |
dea3101e JB |
1154 | |
1155 | pring = &phba->sli.ring[LPFC_ELS_RING]; | |
1156 | ||
1157 | /* | |
1158 | * Check the txcmplq for an iocb that matches the nport the driver is | |
1159 | * searching for. | |
1160 | */ | |
2e0fef85 | 1161 | spin_lock_irq(&phba->hbalock); |
dea3101e JB |
1162 | list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { |
1163 | icmd = &iocb->iocb; | |
2e0fef85 JS |
1164 | if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR && |
1165 | icmd->un.elsreq64.bdl.ulpIoTag32) { | |
dea3101e | 1166 | ndlp = (struct lpfc_nodelist *)(iocb->context1); |
58da1ffb JS |
1167 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && |
1168 | (ndlp->nlp_DID == Fabric_DID)) | |
07951076 | 1169 | lpfc_sli_issue_abort_iotag(phba, pring, iocb); |
dea3101e JB |
1170 | } |
1171 | } | |
2e0fef85 | 1172 | spin_unlock_irq(&phba->hbalock); |
dea3101e JB |
1173 | |
1174 | return 0; | |
1175 | } | |
1176 | ||
e59058c4 | 1177 | /** |
3621a710 | 1178 | * lpfc_initial_flogi - Issue an initial fabric login for a vport |
e59058c4 JS |
1179 | * @vport: pointer to a host virtual N_Port data structure. |
1180 | * | |
1181 | * This routine issues an initial Fabric Login (FLOGI) for the @vport | |
1182 | * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from | |
1183 | * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and | |
1184 | * put it into the @vport's ndlp list. If an inactive ndlp found on the list, | |
1185 | * it will just be enabled and made active. The lpfc_issue_els_flogi() routine | |
1186 | * is then invoked with the @vport and the ndlp to perform the FLOGI for the | |
1187 | * @vport. | |
1188 | * | |
1189 | * Return code | |
1190 | * 0 - failed to issue initial flogi for @vport | |
1191 | * 1 - successfully issued initial flogi for @vport | |
1192 | **/ | |
dea3101e | 1193 | int |
2e0fef85 | 1194 | lpfc_initial_flogi(struct lpfc_vport *vport) |
dea3101e | 1195 | { |
2e0fef85 | 1196 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
1197 | struct lpfc_nodelist *ndlp; |
1198 | ||
98c9ea5c JS |
1199 | vport->port_state = LPFC_FLOGI; |
1200 | lpfc_set_disctmo(vport); | |
1201 | ||
c9f8735b | 1202 | /* First look for the Fabric ndlp */ |
2e0fef85 | 1203 | ndlp = lpfc_findnode_did(vport, Fabric_DID); |
c9f8735b | 1204 | if (!ndlp) { |
dea3101e | 1205 | /* Cannot find existing Fabric ndlp, so allocate a new one */ |
c9f8735b JW |
1206 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); |
1207 | if (!ndlp) | |
1208 | return 0; | |
2e0fef85 | 1209 | lpfc_nlp_init(vport, ndlp, Fabric_DID); |
6fb120a7 JS |
1210 | /* Set the node type */ |
1211 | ndlp->nlp_type |= NLP_FABRIC; | |
e47c9093 JS |
1212 | /* Put ndlp onto node list */ |
1213 | lpfc_enqueue_node(vport, ndlp); | |
1214 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
1215 | /* re-setup ndlp without removing from node list */ | |
1216 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
1217 | if (!ndlp) | |
1218 | return 0; | |
dea3101e | 1219 | } |
87af33fe | 1220 | |
5ac6b303 | 1221 | if (lpfc_issue_els_flogi(vport, ndlp, 0)) { |
fa4066b6 JS |
1222 | /* This decrement of reference count to node shall kick off |
1223 | * the release of the node. | |
1224 | */ | |
329f9bc7 | 1225 | lpfc_nlp_put(ndlp); |
5ac6b303 JS |
1226 | return 0; |
1227 | } | |
c9f8735b | 1228 | return 1; |
dea3101e JB |
1229 | } |
1230 | ||
e59058c4 | 1231 | /** |
3621a710 | 1232 | * lpfc_initial_fdisc - Issue an initial fabric discovery for a vport |
e59058c4 JS |
1233 | * @vport: pointer to a host virtual N_Port data structure. |
1234 | * | |
1235 | * This routine issues an initial Fabric Discover (FDISC) for the @vport | |
1236 | * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from | |
1237 | * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and | |
1238 | * put it into the @vport's ndlp list. If an inactive ndlp found on the list, | |
1239 | * it will just be enabled and made active. The lpfc_issue_els_fdisc() routine | |
1240 | * is then invoked with the @vport and the ndlp to perform the FDISC for the | |
1241 | * @vport. | |
1242 | * | |
1243 | * Return code | |
1244 | * 0 - failed to issue initial fdisc for @vport | |
1245 | * 1 - successfully issued initial fdisc for @vport | |
1246 | **/ | |
92d7f7b0 JS |
1247 | int |
1248 | lpfc_initial_fdisc(struct lpfc_vport *vport) | |
1249 | { | |
1250 | struct lpfc_hba *phba = vport->phba; | |
1251 | struct lpfc_nodelist *ndlp; | |
1252 | ||
1253 | /* First look for the Fabric ndlp */ | |
1254 | ndlp = lpfc_findnode_did(vport, Fabric_DID); | |
1255 | if (!ndlp) { | |
1256 | /* Cannot find existing Fabric ndlp, so allocate a new one */ | |
1257 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
1258 | if (!ndlp) | |
1259 | return 0; | |
1260 | lpfc_nlp_init(vport, ndlp, Fabric_DID); | |
e47c9093 JS |
1261 | /* Put ndlp onto node list */ |
1262 | lpfc_enqueue_node(vport, ndlp); | |
1263 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
1264 | /* re-setup ndlp without removing from node list */ | |
1265 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
1266 | if (!ndlp) | |
1267 | return 0; | |
92d7f7b0 | 1268 | } |
e47c9093 | 1269 | |
92d7f7b0 | 1270 | if (lpfc_issue_els_fdisc(vport, ndlp, 0)) { |
fa4066b6 JS |
1271 | /* decrement node reference count to trigger the release of |
1272 | * the node. | |
1273 | */ | |
92d7f7b0 | 1274 | lpfc_nlp_put(ndlp); |
fa4066b6 | 1275 | return 0; |
92d7f7b0 JS |
1276 | } |
1277 | return 1; | |
1278 | } | |
87af33fe | 1279 | |
e59058c4 | 1280 | /** |
3621a710 | 1281 | * lpfc_more_plogi - Check and issue remaining plogis for a vport |
e59058c4 JS |
1282 | * @vport: pointer to a host virtual N_Port data structure. |
1283 | * | |
1284 | * This routine checks whether there are more remaining Port Logins | |
1285 | * (PLOGI) to be issued for the @vport. If so, it will invoke the routine | |
1286 | * lpfc_els_disc_plogi() to go through the Node Port Recovery (NPR) nodes | |
1287 | * to issue ELS PLOGIs up to the configured discover threads with the | |
1288 | * @vport (@vport->cfg_discovery_threads). The function also decrement | |
1289 | * the @vport's num_disc_node by 1 if it is not already 0. | |
1290 | **/ | |
87af33fe | 1291 | void |
2e0fef85 | 1292 | lpfc_more_plogi(struct lpfc_vport *vport) |
dea3101e JB |
1293 | { |
1294 | int sentplogi; | |
1295 | ||
2e0fef85 JS |
1296 | if (vport->num_disc_nodes) |
1297 | vport->num_disc_nodes--; | |
dea3101e JB |
1298 | |
1299 | /* Continue discovery with <num_disc_nodes> PLOGIs to go */ | |
e8b62011 JS |
1300 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
1301 | "0232 Continue discovery with %d PLOGIs to go " | |
1302 | "Data: x%x x%x x%x\n", | |
1303 | vport->num_disc_nodes, vport->fc_plogi_cnt, | |
1304 | vport->fc_flag, vport->port_state); | |
dea3101e | 1305 | /* Check to see if there are more PLOGIs to be sent */ |
2e0fef85 JS |
1306 | if (vport->fc_flag & FC_NLP_MORE) |
1307 | /* go thru NPR nodes and issue any remaining ELS PLOGIs */ | |
1308 | sentplogi = lpfc_els_disc_plogi(vport); | |
1309 | ||
dea3101e JB |
1310 | return; |
1311 | } | |
1312 | ||
e59058c4 | 1313 | /** |
3621a710 | 1314 | * lpfc_plogi_confirm_nport - Confirm pologi wwpn matches stored ndlp |
e59058c4 JS |
1315 | * @phba: pointer to lpfc hba data structure. |
1316 | * @prsp: pointer to response IOCB payload. | |
1317 | * @ndlp: pointer to a node-list data structure. | |
1318 | * | |
1319 | * This routine checks and indicates whether the WWPN of an N_Port, retrieved | |
1320 | * from a PLOGI, matches the WWPN that is stored in the @ndlp for that N_POrt. | |
1321 | * The following cases are considered N_Port confirmed: | |
1322 | * 1) The N_Port is a Fabric ndlp; 2) The @ndlp is on vport list and matches | |
1323 | * the WWPN of the N_Port logged into; 3) The @ndlp is not on vport list but | |
1324 | * it does not have WWPN assigned either. If the WWPN is confirmed, the | |
1325 | * pointer to the @ndlp will be returned. If the WWPN is not confirmed: | |
1326 | * 1) if there is a node on vport list other than the @ndlp with the same | |
1327 | * WWPN of the N_Port PLOGI logged into, the lpfc_unreg_rpi() will be invoked | |
1328 | * on that node to release the RPI associated with the node; 2) if there is | |
1329 | * no node found on vport list with the same WWPN of the N_Port PLOGI logged | |
1330 | * into, a new node shall be allocated (or activated). In either case, the | |
1331 | * parameters of the @ndlp shall be copied to the new_ndlp, the @ndlp shall | |
1332 | * be released and the new_ndlp shall be put on to the vport node list and | |
1333 | * its pointer returned as the confirmed node. | |
1334 | * | |
1335 | * Note that before the @ndlp got "released", the keepDID from not-matching | |
1336 | * or inactive "new_ndlp" on the vport node list is assigned to the nlp_DID | |
1337 | * of the @ndlp. This is because the release of @ndlp is actually to put it | |
1338 | * into an inactive state on the vport node list and the vport node list | |
1339 | * management algorithm does not allow two node with a same DID. | |
1340 | * | |
1341 | * Return code | |
1342 | * pointer to the PLOGI N_Port @ndlp | |
1343 | **/ | |
488d1469 | 1344 | static struct lpfc_nodelist * |
92d7f7b0 | 1345 | lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp, |
488d1469 JS |
1346 | struct lpfc_nodelist *ndlp) |
1347 | { | |
2e0fef85 | 1348 | struct lpfc_vport *vport = ndlp->vport; |
488d1469 | 1349 | struct lpfc_nodelist *new_ndlp; |
0ff10d46 JS |
1350 | struct lpfc_rport_data *rdata; |
1351 | struct fc_rport *rport; | |
488d1469 | 1352 | struct serv_parm *sp; |
92d7f7b0 | 1353 | uint8_t name[sizeof(struct lpfc_name)]; |
58da1ffb | 1354 | uint32_t rc, keepDID = 0; |
38b92ef8 JS |
1355 | int put_node; |
1356 | int put_rport; | |
19ca7609 | 1357 | struct lpfc_node_rrqs rrq; |
488d1469 | 1358 | |
2fb9bd8b JS |
1359 | /* Fabric nodes can have the same WWPN so we don't bother searching |
1360 | * by WWPN. Just return the ndlp that was given to us. | |
1361 | */ | |
1362 | if (ndlp->nlp_type & NLP_FABRIC) | |
1363 | return ndlp; | |
1364 | ||
92d7f7b0 | 1365 | sp = (struct serv_parm *) ((uint8_t *) prsp + sizeof(uint32_t)); |
685f0bf7 | 1366 | memset(name, 0, sizeof(struct lpfc_name)); |
488d1469 | 1367 | |
685f0bf7 | 1368 | /* Now we find out if the NPort we are logging into, matches the WWPN |
488d1469 JS |
1369 | * we have for that ndlp. If not, we have some work to do. |
1370 | */ | |
2e0fef85 | 1371 | new_ndlp = lpfc_findnode_wwpn(vport, &sp->portName); |
488d1469 | 1372 | |
e47c9093 | 1373 | if (new_ndlp == ndlp && NLP_CHK_NODE_ACT(new_ndlp)) |
488d1469 | 1374 | return ndlp; |
19ca7609 | 1375 | memset(&rrq.xri_bitmap, 0, sizeof(new_ndlp->active_rrqs.xri_bitmap)); |
488d1469 JS |
1376 | |
1377 | if (!new_ndlp) { | |
2e0fef85 JS |
1378 | rc = memcmp(&ndlp->nlp_portname, name, |
1379 | sizeof(struct lpfc_name)); | |
92795650 JS |
1380 | if (!rc) |
1381 | return ndlp; | |
488d1469 JS |
1382 | new_ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_ATOMIC); |
1383 | if (!new_ndlp) | |
1384 | return ndlp; | |
2e0fef85 | 1385 | lpfc_nlp_init(vport, new_ndlp, ndlp->nlp_DID); |
e47c9093 | 1386 | } else if (!NLP_CHK_NODE_ACT(new_ndlp)) { |
58da1ffb JS |
1387 | rc = memcmp(&ndlp->nlp_portname, name, |
1388 | sizeof(struct lpfc_name)); | |
1389 | if (!rc) | |
1390 | return ndlp; | |
e47c9093 JS |
1391 | new_ndlp = lpfc_enable_node(vport, new_ndlp, |
1392 | NLP_STE_UNUSED_NODE); | |
1393 | if (!new_ndlp) | |
1394 | return ndlp; | |
58da1ffb | 1395 | keepDID = new_ndlp->nlp_DID; |
19ca7609 JS |
1396 | if (phba->sli_rev == LPFC_SLI_REV4) |
1397 | memcpy(&rrq.xri_bitmap, | |
1398 | &new_ndlp->active_rrqs.xri_bitmap, | |
1399 | sizeof(new_ndlp->active_rrqs.xri_bitmap)); | |
1400 | } else { | |
58da1ffb | 1401 | keepDID = new_ndlp->nlp_DID; |
19ca7609 JS |
1402 | if (phba->sli_rev == LPFC_SLI_REV4) |
1403 | memcpy(&rrq.xri_bitmap, | |
1404 | &new_ndlp->active_rrqs.xri_bitmap, | |
1405 | sizeof(new_ndlp->active_rrqs.xri_bitmap)); | |
1406 | } | |
488d1469 | 1407 | |
2e0fef85 | 1408 | lpfc_unreg_rpi(vport, new_ndlp); |
488d1469 | 1409 | new_ndlp->nlp_DID = ndlp->nlp_DID; |
92795650 | 1410 | new_ndlp->nlp_prev_state = ndlp->nlp_prev_state; |
19ca7609 JS |
1411 | if (phba->sli_rev == LPFC_SLI_REV4) |
1412 | memcpy(new_ndlp->active_rrqs.xri_bitmap, | |
1413 | &ndlp->active_rrqs.xri_bitmap, | |
1414 | sizeof(ndlp->active_rrqs.xri_bitmap)); | |
0ff10d46 JS |
1415 | |
1416 | if (ndlp->nlp_flag & NLP_NPR_2B_DISC) | |
1417 | new_ndlp->nlp_flag |= NLP_NPR_2B_DISC; | |
1418 | ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; | |
1419 | ||
e47c9093 | 1420 | /* Set state will put new_ndlp on to node list if not already done */ |
2e0fef85 | 1421 | lpfc_nlp_set_state(vport, new_ndlp, ndlp->nlp_state); |
488d1469 | 1422 | |
2e0fef85 | 1423 | /* Move this back to NPR state */ |
87af33fe JS |
1424 | if (memcmp(&ndlp->nlp_portname, name, sizeof(struct lpfc_name)) == 0) { |
1425 | /* The new_ndlp is replacing ndlp totally, so we need | |
1426 | * to put ndlp on UNUSED list and try to free it. | |
1427 | */ | |
0ff10d46 JS |
1428 | |
1429 | /* Fix up the rport accordingly */ | |
1430 | rport = ndlp->rport; | |
1431 | if (rport) { | |
1432 | rdata = rport->dd_data; | |
1433 | if (rdata->pnode == ndlp) { | |
1434 | lpfc_nlp_put(ndlp); | |
1435 | ndlp->rport = NULL; | |
1436 | rdata->pnode = lpfc_nlp_get(new_ndlp); | |
1437 | new_ndlp->rport = rport; | |
1438 | } | |
1439 | new_ndlp->nlp_type = ndlp->nlp_type; | |
1440 | } | |
58da1ffb JS |
1441 | /* We shall actually free the ndlp with both nlp_DID and |
1442 | * nlp_portname fields equals 0 to avoid any ndlp on the | |
1443 | * nodelist never to be used. | |
1444 | */ | |
1445 | if (ndlp->nlp_DID == 0) { | |
1446 | spin_lock_irq(&phba->ndlp_lock); | |
1447 | NLP_SET_FREE_REQ(ndlp); | |
1448 | spin_unlock_irq(&phba->ndlp_lock); | |
1449 | } | |
0ff10d46 | 1450 | |
58da1ffb JS |
1451 | /* Two ndlps cannot have the same did on the nodelist */ |
1452 | ndlp->nlp_DID = keepDID; | |
19ca7609 JS |
1453 | if (phba->sli_rev == LPFC_SLI_REV4) |
1454 | memcpy(&ndlp->active_rrqs.xri_bitmap, | |
1455 | &rrq.xri_bitmap, | |
1456 | sizeof(ndlp->active_rrqs.xri_bitmap)); | |
2e0fef85 | 1457 | lpfc_drop_node(vport, ndlp); |
87af33fe | 1458 | } |
92795650 | 1459 | else { |
2e0fef85 | 1460 | lpfc_unreg_rpi(vport, ndlp); |
58da1ffb JS |
1461 | /* Two ndlps cannot have the same did */ |
1462 | ndlp->nlp_DID = keepDID; | |
19ca7609 JS |
1463 | if (phba->sli_rev == LPFC_SLI_REV4) |
1464 | memcpy(&ndlp->active_rrqs.xri_bitmap, | |
1465 | &rrq.xri_bitmap, | |
1466 | sizeof(ndlp->active_rrqs.xri_bitmap)); | |
2e0fef85 | 1467 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
38b92ef8 JS |
1468 | /* Since we are swapping the ndlp passed in with the new one |
1469 | * and the did has already been swapped, copy over the | |
1470 | * state and names. | |
1471 | */ | |
1472 | memcpy(&new_ndlp->nlp_portname, &ndlp->nlp_portname, | |
1473 | sizeof(struct lpfc_name)); | |
1474 | memcpy(&new_ndlp->nlp_nodename, &ndlp->nlp_nodename, | |
1475 | sizeof(struct lpfc_name)); | |
1476 | new_ndlp->nlp_state = ndlp->nlp_state; | |
1477 | /* Fix up the rport accordingly */ | |
1478 | rport = ndlp->rport; | |
1479 | if (rport) { | |
1480 | rdata = rport->dd_data; | |
1481 | put_node = rdata->pnode != NULL; | |
1482 | put_rport = ndlp->rport != NULL; | |
1483 | rdata->pnode = NULL; | |
1484 | ndlp->rport = NULL; | |
1485 | if (put_node) | |
1486 | lpfc_nlp_put(ndlp); | |
1487 | if (put_rport) | |
1488 | put_device(&rport->dev); | |
1489 | } | |
92795650 | 1490 | } |
488d1469 JS |
1491 | return new_ndlp; |
1492 | } | |
1493 | ||
e59058c4 | 1494 | /** |
3621a710 | 1495 | * lpfc_end_rscn - Check and handle more rscn for a vport |
e59058c4 JS |
1496 | * @vport: pointer to a host virtual N_Port data structure. |
1497 | * | |
1498 | * This routine checks whether more Registration State Change | |
1499 | * Notifications (RSCNs) came in while the discovery state machine was in | |
1500 | * the FC_RSCN_MODE. If so, the lpfc_els_handle_rscn() routine will be | |
1501 | * invoked to handle the additional RSCNs for the @vport. Otherwise, the | |
1502 | * FC_RSCN_MODE bit will be cleared with the @vport to mark as the end of | |
1503 | * handling the RSCNs. | |
1504 | **/ | |
87af33fe JS |
1505 | void |
1506 | lpfc_end_rscn(struct lpfc_vport *vport) | |
1507 | { | |
1508 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
1509 | ||
1510 | if (vport->fc_flag & FC_RSCN_MODE) { | |
1511 | /* | |
1512 | * Check to see if more RSCNs came in while we were | |
1513 | * processing this one. | |
1514 | */ | |
1515 | if (vport->fc_rscn_id_cnt || | |
1516 | (vport->fc_flag & FC_RSCN_DISCOVERY) != 0) | |
1517 | lpfc_els_handle_rscn(vport); | |
1518 | else { | |
1519 | spin_lock_irq(shost->host_lock); | |
1520 | vport->fc_flag &= ~FC_RSCN_MODE; | |
1521 | spin_unlock_irq(shost->host_lock); | |
1522 | } | |
1523 | } | |
1524 | } | |
1525 | ||
19ca7609 JS |
1526 | /** |
1527 | * lpfc_cmpl_els_rrq - Completion handled for els RRQs. | |
1528 | * @phba: pointer to lpfc hba data structure. | |
1529 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
1530 | * @rspiocb: pointer to lpfc response iocb data structure. | |
1531 | * | |
1532 | * This routine will call the clear rrq function to free the rrq and | |
1533 | * clear the xri's bit in the ndlp's xri_bitmap. If the ndlp does not | |
1534 | * exist then the clear_rrq is still called because the rrq needs to | |
1535 | * be freed. | |
1536 | **/ | |
1537 | ||
1538 | static void | |
1539 | lpfc_cmpl_els_rrq(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
1540 | struct lpfc_iocbq *rspiocb) | |
1541 | { | |
1542 | struct lpfc_vport *vport = cmdiocb->vport; | |
1543 | IOCB_t *irsp; | |
1544 | struct lpfc_nodelist *ndlp; | |
1545 | struct lpfc_node_rrq *rrq; | |
1546 | ||
1547 | /* we pass cmdiocb to state machine which needs rspiocb as well */ | |
1548 | rrq = cmdiocb->context_un.rrq; | |
1549 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
1550 | ||
1551 | irsp = &rspiocb->iocb; | |
1552 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, | |
1553 | "RRQ cmpl: status:x%x/x%x did:x%x", | |
1554 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1555 | irsp->un.elsreq64.remoteID); | |
1556 | ||
1557 | ndlp = lpfc_findnode_did(vport, irsp->un.elsreq64.remoteID); | |
1558 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || ndlp != rrq->ndlp) { | |
1559 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
1560 | "2882 RRQ completes to NPort x%x " | |
1561 | "with no ndlp. Data: x%x x%x x%x\n", | |
1562 | irsp->un.elsreq64.remoteID, | |
1563 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1564 | irsp->ulpIoTag); | |
1565 | goto out; | |
1566 | } | |
1567 | ||
1568 | /* rrq completes to NPort <nlp_DID> */ | |
1569 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
1570 | "2880 RRQ completes to NPort x%x " | |
1571 | "Data: x%x x%x x%x x%x x%x\n", | |
1572 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
1573 | irsp->ulpTimeout, rrq->xritag, rrq->rxid); | |
1574 | ||
1575 | if (irsp->ulpStatus) { | |
1576 | /* Check for retry */ | |
1577 | /* RRQ failed Don't print the vport to vport rjts */ | |
1578 | if (irsp->ulpStatus != IOSTAT_LS_RJT || | |
1579 | (((irsp->un.ulpWord[4]) >> 16 != LSRJT_INVALID_CMD) && | |
1580 | ((irsp->un.ulpWord[4]) >> 16 != LSRJT_UNABLE_TPC)) || | |
1581 | (phba)->pport->cfg_log_verbose & LOG_ELS) | |
1582 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
1583 | "2881 RRQ failure DID:%06X Status:x%x/x%x\n", | |
1584 | ndlp->nlp_DID, irsp->ulpStatus, | |
1585 | irsp->un.ulpWord[4]); | |
1586 | } | |
1587 | out: | |
1588 | if (rrq) | |
1589 | lpfc_clr_rrq_active(phba, rrq->xritag, rrq); | |
1590 | lpfc_els_free_iocb(phba, cmdiocb); | |
1591 | return; | |
1592 | } | |
e59058c4 | 1593 | /** |
3621a710 | 1594 | * lpfc_cmpl_els_plogi - Completion callback function for plogi |
e59058c4 JS |
1595 | * @phba: pointer to lpfc hba data structure. |
1596 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
1597 | * @rspiocb: pointer to lpfc response iocb data structure. | |
1598 | * | |
1599 | * This routine is the completion callback function for issuing the Port | |
1600 | * Login (PLOGI) command. For PLOGI completion, there must be an active | |
1601 | * ndlp on the vport node list that matches the remote node ID from the | |
25985edc | 1602 | * PLOGI response IOCB. If such ndlp does not exist, the PLOGI is simply |
e59058c4 JS |
1603 | * ignored and command IOCB released. The PLOGI response IOCB status is |
1604 | * checked for error conditons. If there is error status reported, PLOGI | |
1605 | * retry shall be attempted by invoking the lpfc_els_retry() routine. | |
1606 | * Otherwise, the lpfc_plogi_confirm_nport() routine shall be invoked on | |
1607 | * the ndlp and the NLP_EVT_CMPL_PLOGI state to the Discover State Machine | |
1608 | * (DSM) is set for this PLOGI completion. Finally, it checks whether | |
1609 | * there are additional N_Port nodes with the vport that need to perform | |
1610 | * PLOGI. If so, the lpfc_more_plogi() routine is invoked to issue addition | |
1611 | * PLOGIs. | |
1612 | **/ | |
dea3101e | 1613 | static void |
2e0fef85 JS |
1614 | lpfc_cmpl_els_plogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
1615 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 1616 | { |
2e0fef85 JS |
1617 | struct lpfc_vport *vport = cmdiocb->vport; |
1618 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e | 1619 | IOCB_t *irsp; |
dea3101e | 1620 | struct lpfc_nodelist *ndlp; |
92795650 | 1621 | struct lpfc_dmabuf *prsp; |
dea3101e JB |
1622 | int disc, rc, did, type; |
1623 | ||
dea3101e JB |
1624 | /* we pass cmdiocb to state machine which needs rspiocb as well */ |
1625 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
1626 | ||
1627 | irsp = &rspiocb->iocb; | |
858c9f6c JS |
1628 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1629 | "PLOGI cmpl: status:x%x/x%x did:x%x", | |
1630 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1631 | irsp->un.elsreq64.remoteID); | |
1632 | ||
2e0fef85 | 1633 | ndlp = lpfc_findnode_did(vport, irsp->un.elsreq64.remoteID); |
e47c9093 | 1634 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { |
e8b62011 JS |
1635 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
1636 | "0136 PLOGI completes to NPort x%x " | |
1637 | "with no ndlp. Data: x%x x%x x%x\n", | |
1638 | irsp->un.elsreq64.remoteID, | |
1639 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1640 | irsp->ulpIoTag); | |
488d1469 | 1641 | goto out; |
ed957684 | 1642 | } |
dea3101e JB |
1643 | |
1644 | /* Since ndlp can be freed in the disc state machine, note if this node | |
1645 | * is being used during discovery. | |
1646 | */ | |
2e0fef85 | 1647 | spin_lock_irq(shost->host_lock); |
dea3101e | 1648 | disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC); |
488d1469 | 1649 | ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; |
2e0fef85 | 1650 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
1651 | rc = 0; |
1652 | ||
1653 | /* PLOGI completes to NPort <nlp_DID> */ | |
e8b62011 JS |
1654 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
1655 | "0102 PLOGI completes to NPort x%x " | |
1656 | "Data: x%x x%x x%x x%x x%x\n", | |
1657 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
1658 | irsp->ulpTimeout, disc, vport->num_disc_nodes); | |
dea3101e | 1659 | /* Check to see if link went down during discovery */ |
2e0fef85 JS |
1660 | if (lpfc_els_chk_latt(vport)) { |
1661 | spin_lock_irq(shost->host_lock); | |
dea3101e | 1662 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 | 1663 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
1664 | goto out; |
1665 | } | |
1666 | ||
1667 | /* ndlp could be freed in DSM, save these values now */ | |
1668 | type = ndlp->nlp_type; | |
1669 | did = ndlp->nlp_DID; | |
1670 | ||
1671 | if (irsp->ulpStatus) { | |
1672 | /* Check for retry */ | |
1673 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { | |
1674 | /* ELS command is being retried */ | |
1675 | if (disc) { | |
2e0fef85 | 1676 | spin_lock_irq(shost->host_lock); |
dea3101e | 1677 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 | 1678 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
1679 | } |
1680 | goto out; | |
1681 | } | |
2a9bf3d0 JS |
1682 | /* PLOGI failed Don't print the vport to vport rjts */ |
1683 | if (irsp->ulpStatus != IOSTAT_LS_RJT || | |
1684 | (((irsp->un.ulpWord[4]) >> 16 != LSRJT_INVALID_CMD) && | |
1685 | ((irsp->un.ulpWord[4]) >> 16 != LSRJT_UNABLE_TPC)) || | |
1686 | (phba)->pport->cfg_log_verbose & LOG_ELS) | |
1687 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
e40a02c1 JS |
1688 | "2753 PLOGI failure DID:%06X Status:x%x/x%x\n", |
1689 | ndlp->nlp_DID, irsp->ulpStatus, | |
1690 | irsp->un.ulpWord[4]); | |
dea3101e | 1691 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ |
e47c9093 | 1692 | if (lpfc_error_lost_link(irsp)) |
c9f8735b | 1693 | rc = NLP_STE_FREED_NODE; |
e47c9093 | 1694 | else |
2e0fef85 | 1695 | rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 1696 | NLP_EVT_CMPL_PLOGI); |
dea3101e JB |
1697 | } else { |
1698 | /* Good status, call state machine */ | |
92795650 | 1699 | prsp = list_entry(((struct lpfc_dmabuf *) |
92d7f7b0 JS |
1700 | cmdiocb->context2)->list.next, |
1701 | struct lpfc_dmabuf, list); | |
1702 | ndlp = lpfc_plogi_confirm_nport(phba, prsp->virt, ndlp); | |
2e0fef85 | 1703 | rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 1704 | NLP_EVT_CMPL_PLOGI); |
dea3101e JB |
1705 | } |
1706 | ||
2e0fef85 | 1707 | if (disc && vport->num_disc_nodes) { |
dea3101e | 1708 | /* Check to see if there are more PLOGIs to be sent */ |
2e0fef85 | 1709 | lpfc_more_plogi(vport); |
dea3101e | 1710 | |
2e0fef85 JS |
1711 | if (vport->num_disc_nodes == 0) { |
1712 | spin_lock_irq(shost->host_lock); | |
1713 | vport->fc_flag &= ~FC_NDISC_ACTIVE; | |
1714 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 1715 | |
2e0fef85 | 1716 | lpfc_can_disctmo(vport); |
87af33fe | 1717 | lpfc_end_rscn(vport); |
dea3101e JB |
1718 | } |
1719 | } | |
1720 | ||
1721 | out: | |
1722 | lpfc_els_free_iocb(phba, cmdiocb); | |
1723 | return; | |
1724 | } | |
1725 | ||
e59058c4 | 1726 | /** |
3621a710 | 1727 | * lpfc_issue_els_plogi - Issue an plogi iocb command for a vport |
e59058c4 JS |
1728 | * @vport: pointer to a host virtual N_Port data structure. |
1729 | * @did: destination port identifier. | |
1730 | * @retry: number of retries to the command IOCB. | |
1731 | * | |
1732 | * This routine issues a Port Login (PLOGI) command to a remote N_Port | |
1733 | * (with the @did) for a @vport. Before issuing a PLOGI to a remote N_Port, | |
1734 | * the ndlp with the remote N_Port DID must exist on the @vport's ndlp list. | |
1735 | * This routine constructs the proper feilds of the PLOGI IOCB and invokes | |
1736 | * the lpfc_sli_issue_iocb() routine to send out PLOGI ELS command. | |
1737 | * | |
1738 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
1739 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
1740 | * will be stored into the context1 field of the IOCB for the completion | |
1741 | * callback function to the PLOGI ELS command. | |
1742 | * | |
1743 | * Return code | |
1744 | * 0 - Successfully issued a plogi for @vport | |
1745 | * 1 - failed to issue a plogi for @vport | |
1746 | **/ | |
dea3101e | 1747 | int |
2e0fef85 | 1748 | lpfc_issue_els_plogi(struct lpfc_vport *vport, uint32_t did, uint8_t retry) |
dea3101e | 1749 | { |
2e0fef85 | 1750 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
1751 | struct serv_parm *sp; |
1752 | IOCB_t *icmd; | |
98c9ea5c | 1753 | struct lpfc_nodelist *ndlp; |
dea3101e | 1754 | struct lpfc_iocbq *elsiocb; |
dea3101e JB |
1755 | struct lpfc_sli *psli; |
1756 | uint8_t *pcmd; | |
1757 | uint16_t cmdsize; | |
92d7f7b0 | 1758 | int ret; |
dea3101e JB |
1759 | |
1760 | psli = &phba->sli; | |
dea3101e | 1761 | |
98c9ea5c | 1762 | ndlp = lpfc_findnode_did(vport, did); |
e47c9093 JS |
1763 | if (ndlp && !NLP_CHK_NODE_ACT(ndlp)) |
1764 | ndlp = NULL; | |
98c9ea5c | 1765 | |
e47c9093 | 1766 | /* If ndlp is not NULL, we will bump the reference count on it */ |
92d7f7b0 | 1767 | cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); |
98c9ea5c | 1768 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did, |
2e0fef85 | 1769 | ELS_CMD_PLOGI); |
c9f8735b JW |
1770 | if (!elsiocb) |
1771 | return 1; | |
dea3101e JB |
1772 | |
1773 | icmd = &elsiocb->iocb; | |
1774 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
1775 | ||
1776 | /* For PLOGI request, remainder of payload is service parameters */ | |
1777 | *((uint32_t *) (pcmd)) = ELS_CMD_PLOGI; | |
92d7f7b0 JS |
1778 | pcmd += sizeof(uint32_t); |
1779 | memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); | |
dea3101e JB |
1780 | sp = (struct serv_parm *) pcmd; |
1781 | ||
5ac6b303 JS |
1782 | /* |
1783 | * If we are a N-port connected to a Fabric, fix-up paramm's so logins | |
1784 | * to device on remote loops work. | |
1785 | */ | |
1786 | if ((vport->fc_flag & FC_FABRIC) && !(vport->fc_flag & FC_PUBLIC_LOOP)) | |
1787 | sp->cmn.altBbCredit = 1; | |
1788 | ||
dea3101e JB |
1789 | if (sp->cmn.fcphLow < FC_PH_4_3) |
1790 | sp->cmn.fcphLow = FC_PH_4_3; | |
1791 | ||
1792 | if (sp->cmn.fcphHigh < FC_PH3) | |
1793 | sp->cmn.fcphHigh = FC_PH3; | |
1794 | ||
858c9f6c JS |
1795 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1796 | "Issue PLOGI: did:x%x", | |
1797 | did, 0, 0); | |
1798 | ||
dea3101e JB |
1799 | phba->fc_stat.elsXmitPLOGI++; |
1800 | elsiocb->iocb_cmpl = lpfc_cmpl_els_plogi; | |
3772a991 | 1801 | ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
92d7f7b0 JS |
1802 | |
1803 | if (ret == IOCB_ERROR) { | |
dea3101e | 1804 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 1805 | return 1; |
dea3101e | 1806 | } |
c9f8735b | 1807 | return 0; |
dea3101e JB |
1808 | } |
1809 | ||
e59058c4 | 1810 | /** |
3621a710 | 1811 | * lpfc_cmpl_els_prli - Completion callback function for prli |
e59058c4 JS |
1812 | * @phba: pointer to lpfc hba data structure. |
1813 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
1814 | * @rspiocb: pointer to lpfc response iocb data structure. | |
1815 | * | |
1816 | * This routine is the completion callback function for a Process Login | |
1817 | * (PRLI) ELS command. The PRLI response IOCB status is checked for error | |
1818 | * status. If there is error status reported, PRLI retry shall be attempted | |
1819 | * by invoking the lpfc_els_retry() routine. Otherwise, the state | |
1820 | * NLP_EVT_CMPL_PRLI is sent to the Discover State Machine (DSM) for this | |
1821 | * ndlp to mark the PRLI completion. | |
1822 | **/ | |
dea3101e | 1823 | static void |
2e0fef85 JS |
1824 | lpfc_cmpl_els_prli(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
1825 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 1826 | { |
2e0fef85 JS |
1827 | struct lpfc_vport *vport = cmdiocb->vport; |
1828 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e JB |
1829 | IOCB_t *irsp; |
1830 | struct lpfc_sli *psli; | |
1831 | struct lpfc_nodelist *ndlp; | |
1832 | ||
1833 | psli = &phba->sli; | |
1834 | /* we pass cmdiocb to state machine which needs rspiocb as well */ | |
1835 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
1836 | ||
1837 | irsp = &(rspiocb->iocb); | |
1838 | ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
2e0fef85 | 1839 | spin_lock_irq(shost->host_lock); |
dea3101e | 1840 | ndlp->nlp_flag &= ~NLP_PRLI_SND; |
2e0fef85 | 1841 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1842 | |
858c9f6c JS |
1843 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1844 | "PRLI cmpl: status:x%x/x%x did:x%x", | |
1845 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1846 | ndlp->nlp_DID); | |
dea3101e | 1847 | /* PRLI completes to NPort <nlp_DID> */ |
e8b62011 JS |
1848 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
1849 | "0103 PRLI completes to NPort x%x " | |
1850 | "Data: x%x x%x x%x x%x\n", | |
1851 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
1852 | irsp->ulpTimeout, vport->num_disc_nodes); | |
dea3101e | 1853 | |
2e0fef85 | 1854 | vport->fc_prli_sent--; |
dea3101e | 1855 | /* Check to see if link went down during discovery */ |
2e0fef85 | 1856 | if (lpfc_els_chk_latt(vport)) |
dea3101e JB |
1857 | goto out; |
1858 | ||
1859 | if (irsp->ulpStatus) { | |
1860 | /* Check for retry */ | |
1861 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { | |
1862 | /* ELS command is being retried */ | |
1863 | goto out; | |
1864 | } | |
1865 | /* PRLI failed */ | |
e40a02c1 JS |
1866 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
1867 | "2754 PRLI failure DID:%06X Status:x%x/x%x\n", | |
1868 | ndlp->nlp_DID, irsp->ulpStatus, | |
1869 | irsp->un.ulpWord[4]); | |
dea3101e | 1870 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ |
e47c9093 | 1871 | if (lpfc_error_lost_link(irsp)) |
dea3101e | 1872 | goto out; |
e47c9093 | 1873 | else |
2e0fef85 | 1874 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 1875 | NLP_EVT_CMPL_PRLI); |
e47c9093 | 1876 | } else |
dea3101e | 1877 | /* Good status, call state machine */ |
2e0fef85 | 1878 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 1879 | NLP_EVT_CMPL_PRLI); |
dea3101e JB |
1880 | out: |
1881 | lpfc_els_free_iocb(phba, cmdiocb); | |
1882 | return; | |
1883 | } | |
1884 | ||
e59058c4 | 1885 | /** |
3621a710 | 1886 | * lpfc_issue_els_prli - Issue a prli iocb command for a vport |
e59058c4 JS |
1887 | * @vport: pointer to a host virtual N_Port data structure. |
1888 | * @ndlp: pointer to a node-list data structure. | |
1889 | * @retry: number of retries to the command IOCB. | |
1890 | * | |
1891 | * This routine issues a Process Login (PRLI) ELS command for the | |
1892 | * @vport. The PRLI service parameters are set up in the payload of the | |
1893 | * PRLI Request command and the pointer to lpfc_cmpl_els_prli() routine | |
1894 | * is put to the IOCB completion callback func field before invoking the | |
1895 | * routine lpfc_sli_issue_iocb() to send out PRLI command. | |
1896 | * | |
1897 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
1898 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
1899 | * will be stored into the context1 field of the IOCB for the completion | |
1900 | * callback function to the PRLI ELS command. | |
1901 | * | |
1902 | * Return code | |
1903 | * 0 - successfully issued prli iocb command for @vport | |
1904 | * 1 - failed to issue prli iocb command for @vport | |
1905 | **/ | |
dea3101e | 1906 | int |
2e0fef85 | 1907 | lpfc_issue_els_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
dea3101e JB |
1908 | uint8_t retry) |
1909 | { | |
2e0fef85 JS |
1910 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
1911 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
1912 | PRLI *npr; |
1913 | IOCB_t *icmd; | |
1914 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
1915 | uint8_t *pcmd; |
1916 | uint16_t cmdsize; | |
1917 | ||
92d7f7b0 | 1918 | cmdsize = (sizeof(uint32_t) + sizeof(PRLI)); |
2e0fef85 JS |
1919 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
1920 | ndlp->nlp_DID, ELS_CMD_PRLI); | |
488d1469 | 1921 | if (!elsiocb) |
c9f8735b | 1922 | return 1; |
dea3101e JB |
1923 | |
1924 | icmd = &elsiocb->iocb; | |
1925 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
1926 | ||
1927 | /* For PRLI request, remainder of payload is service parameters */ | |
92d7f7b0 | 1928 | memset(pcmd, 0, (sizeof(PRLI) + sizeof(uint32_t))); |
dea3101e | 1929 | *((uint32_t *) (pcmd)) = ELS_CMD_PRLI; |
92d7f7b0 | 1930 | pcmd += sizeof(uint32_t); |
dea3101e JB |
1931 | |
1932 | /* For PRLI, remainder of payload is PRLI parameter page */ | |
1933 | npr = (PRLI *) pcmd; | |
1934 | /* | |
1935 | * If our firmware version is 3.20 or later, | |
1936 | * set the following bits for FC-TAPE support. | |
1937 | */ | |
1938 | if (phba->vpd.rev.feaLevelHigh >= 0x02) { | |
1939 | npr->ConfmComplAllowed = 1; | |
1940 | npr->Retry = 1; | |
1941 | npr->TaskRetryIdReq = 1; | |
1942 | } | |
1943 | npr->estabImagePair = 1; | |
1944 | npr->readXferRdyDis = 1; | |
1945 | ||
1946 | /* For FCP support */ | |
1947 | npr->prliType = PRLI_FCP_TYPE; | |
1948 | npr->initiatorFunc = 1; | |
1949 | ||
858c9f6c JS |
1950 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1951 | "Issue PRLI: did:x%x", | |
1952 | ndlp->nlp_DID, 0, 0); | |
1953 | ||
dea3101e JB |
1954 | phba->fc_stat.elsXmitPRLI++; |
1955 | elsiocb->iocb_cmpl = lpfc_cmpl_els_prli; | |
2e0fef85 | 1956 | spin_lock_irq(shost->host_lock); |
dea3101e | 1957 | ndlp->nlp_flag |= NLP_PRLI_SND; |
2e0fef85 | 1958 | spin_unlock_irq(shost->host_lock); |
3772a991 JS |
1959 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
1960 | IOCB_ERROR) { | |
2e0fef85 | 1961 | spin_lock_irq(shost->host_lock); |
dea3101e | 1962 | ndlp->nlp_flag &= ~NLP_PRLI_SND; |
2e0fef85 | 1963 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1964 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 1965 | return 1; |
dea3101e | 1966 | } |
2e0fef85 | 1967 | vport->fc_prli_sent++; |
c9f8735b | 1968 | return 0; |
dea3101e JB |
1969 | } |
1970 | ||
90160e01 | 1971 | /** |
3621a710 | 1972 | * lpfc_rscn_disc - Perform rscn discovery for a vport |
90160e01 JS |
1973 | * @vport: pointer to a host virtual N_Port data structure. |
1974 | * | |
1975 | * This routine performs Registration State Change Notification (RSCN) | |
1976 | * discovery for a @vport. If the @vport's node port recovery count is not | |
1977 | * zero, it will invoke the lpfc_els_disc_plogi() to perform PLOGI for all | |
1978 | * the nodes that need recovery. If none of the PLOGI were needed through | |
1979 | * the lpfc_els_disc_plogi() routine, the lpfc_end_rscn() routine shall be | |
1980 | * invoked to check and handle possible more RSCN came in during the period | |
1981 | * of processing the current ones. | |
1982 | **/ | |
1983 | static void | |
1984 | lpfc_rscn_disc(struct lpfc_vport *vport) | |
1985 | { | |
1986 | lpfc_can_disctmo(vport); | |
1987 | ||
1988 | /* RSCN discovery */ | |
1989 | /* go thru NPR nodes and issue ELS PLOGIs */ | |
1990 | if (vport->fc_npr_cnt) | |
1991 | if (lpfc_els_disc_plogi(vport)) | |
1992 | return; | |
1993 | ||
1994 | lpfc_end_rscn(vport); | |
1995 | } | |
1996 | ||
1997 | /** | |
3621a710 | 1998 | * lpfc_adisc_done - Complete the adisc phase of discovery |
90160e01 JS |
1999 | * @vport: pointer to lpfc_vport hba data structure that finished all ADISCs. |
2000 | * | |
2001 | * This function is called when the final ADISC is completed during discovery. | |
2002 | * This function handles clearing link attention or issuing reg_vpi depending | |
2003 | * on whether npiv is enabled. This function also kicks off the PLOGI phase of | |
2004 | * discovery. | |
2005 | * This function is called with no locks held. | |
2006 | **/ | |
2007 | static void | |
2008 | lpfc_adisc_done(struct lpfc_vport *vport) | |
2009 | { | |
2010 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
2011 | struct lpfc_hba *phba = vport->phba; | |
2012 | ||
2013 | /* | |
2014 | * For NPIV, cmpl_reg_vpi will set port_state to READY, | |
2015 | * and continue discovery. | |
2016 | */ | |
2017 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && | |
6fb120a7 JS |
2018 | !(vport->fc_flag & FC_RSCN_MODE) && |
2019 | (phba->sli_rev < LPFC_SLI_REV4)) { | |
90160e01 JS |
2020 | lpfc_issue_reg_vpi(phba, vport); |
2021 | return; | |
2022 | } | |
2023 | /* | |
2024 | * For SLI2, we need to set port_state to READY | |
2025 | * and continue discovery. | |
2026 | */ | |
2027 | if (vport->port_state < LPFC_VPORT_READY) { | |
2028 | /* If we get here, there is nothing to ADISC */ | |
2029 | if (vport->port_type == LPFC_PHYSICAL_PORT) | |
2030 | lpfc_issue_clear_la(phba, vport); | |
2031 | if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) { | |
2032 | vport->num_disc_nodes = 0; | |
2033 | /* go thru NPR list, issue ELS PLOGIs */ | |
2034 | if (vport->fc_npr_cnt) | |
2035 | lpfc_els_disc_plogi(vport); | |
2036 | if (!vport->num_disc_nodes) { | |
2037 | spin_lock_irq(shost->host_lock); | |
2038 | vport->fc_flag &= ~FC_NDISC_ACTIVE; | |
2039 | spin_unlock_irq(shost->host_lock); | |
2040 | lpfc_can_disctmo(vport); | |
2041 | lpfc_end_rscn(vport); | |
2042 | } | |
2043 | } | |
2044 | vport->port_state = LPFC_VPORT_READY; | |
2045 | } else | |
2046 | lpfc_rscn_disc(vport); | |
2047 | } | |
2048 | ||
e59058c4 | 2049 | /** |
3621a710 | 2050 | * lpfc_more_adisc - Issue more adisc as needed |
e59058c4 JS |
2051 | * @vport: pointer to a host virtual N_Port data structure. |
2052 | * | |
2053 | * This routine determines whether there are more ndlps on a @vport | |
2054 | * node list need to have Address Discover (ADISC) issued. If so, it will | |
2055 | * invoke the lpfc_els_disc_adisc() routine to issue ADISC on the @vport's | |
2056 | * remaining nodes which need to have ADISC sent. | |
2057 | **/ | |
0ff10d46 | 2058 | void |
2e0fef85 | 2059 | lpfc_more_adisc(struct lpfc_vport *vport) |
dea3101e JB |
2060 | { |
2061 | int sentadisc; | |
2062 | ||
2e0fef85 JS |
2063 | if (vport->num_disc_nodes) |
2064 | vport->num_disc_nodes--; | |
dea3101e | 2065 | /* Continue discovery with <num_disc_nodes> ADISCs to go */ |
e8b62011 JS |
2066 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
2067 | "0210 Continue discovery with %d ADISCs to go " | |
2068 | "Data: x%x x%x x%x\n", | |
2069 | vport->num_disc_nodes, vport->fc_adisc_cnt, | |
2070 | vport->fc_flag, vport->port_state); | |
dea3101e | 2071 | /* Check to see if there are more ADISCs to be sent */ |
2e0fef85 JS |
2072 | if (vport->fc_flag & FC_NLP_MORE) { |
2073 | lpfc_set_disctmo(vport); | |
2074 | /* go thru NPR nodes and issue any remaining ELS ADISCs */ | |
2075 | sentadisc = lpfc_els_disc_adisc(vport); | |
dea3101e | 2076 | } |
90160e01 JS |
2077 | if (!vport->num_disc_nodes) |
2078 | lpfc_adisc_done(vport); | |
dea3101e JB |
2079 | return; |
2080 | } | |
2081 | ||
e59058c4 | 2082 | /** |
3621a710 | 2083 | * lpfc_cmpl_els_adisc - Completion callback function for adisc |
e59058c4 JS |
2084 | * @phba: pointer to lpfc hba data structure. |
2085 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
2086 | * @rspiocb: pointer to lpfc response iocb data structure. | |
2087 | * | |
2088 | * This routine is the completion function for issuing the Address Discover | |
2089 | * (ADISC) command. It first checks to see whether link went down during | |
2090 | * the discovery process. If so, the node will be marked as node port | |
2091 | * recovery for issuing discover IOCB by the link attention handler and | |
2092 | * exit. Otherwise, the response status is checked. If error was reported | |
2093 | * in the response status, the ADISC command shall be retried by invoking | |
2094 | * the lpfc_els_retry() routine. Otherwise, if no error was reported in | |
2095 | * the response status, the state machine is invoked to set transition | |
2096 | * with respect to NLP_EVT_CMPL_ADISC event. | |
2097 | **/ | |
dea3101e | 2098 | static void |
2e0fef85 JS |
2099 | lpfc_cmpl_els_adisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
2100 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 2101 | { |
2e0fef85 JS |
2102 | struct lpfc_vport *vport = cmdiocb->vport; |
2103 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e | 2104 | IOCB_t *irsp; |
dea3101e | 2105 | struct lpfc_nodelist *ndlp; |
2e0fef85 | 2106 | int disc; |
dea3101e JB |
2107 | |
2108 | /* we pass cmdiocb to state machine which needs rspiocb as well */ | |
2109 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
2110 | ||
2111 | irsp = &(rspiocb->iocb); | |
2112 | ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
dea3101e | 2113 | |
858c9f6c JS |
2114 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2115 | "ADISC cmpl: status:x%x/x%x did:x%x", | |
2116 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
2117 | ndlp->nlp_DID); | |
2118 | ||
dea3101e JB |
2119 | /* Since ndlp can be freed in the disc state machine, note if this node |
2120 | * is being used during discovery. | |
2121 | */ | |
2e0fef85 | 2122 | spin_lock_irq(shost->host_lock); |
dea3101e | 2123 | disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC); |
c9f8735b | 2124 | ndlp->nlp_flag &= ~(NLP_ADISC_SND | NLP_NPR_2B_DISC); |
2e0fef85 | 2125 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2126 | /* ADISC completes to NPort <nlp_DID> */ |
e8b62011 JS |
2127 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
2128 | "0104 ADISC completes to NPort x%x " | |
2129 | "Data: x%x x%x x%x x%x x%x\n", | |
2130 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
2131 | irsp->ulpTimeout, disc, vport->num_disc_nodes); | |
dea3101e | 2132 | /* Check to see if link went down during discovery */ |
2e0fef85 JS |
2133 | if (lpfc_els_chk_latt(vport)) { |
2134 | spin_lock_irq(shost->host_lock); | |
dea3101e | 2135 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 | 2136 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
2137 | goto out; |
2138 | } | |
2139 | ||
2140 | if (irsp->ulpStatus) { | |
2141 | /* Check for retry */ | |
2142 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { | |
2143 | /* ELS command is being retried */ | |
2144 | if (disc) { | |
2e0fef85 | 2145 | spin_lock_irq(shost->host_lock); |
dea3101e | 2146 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 JS |
2147 | spin_unlock_irq(shost->host_lock); |
2148 | lpfc_set_disctmo(vport); | |
dea3101e JB |
2149 | } |
2150 | goto out; | |
2151 | } | |
2152 | /* ADISC failed */ | |
e40a02c1 JS |
2153 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
2154 | "2755 ADISC failure DID:%06X Status:x%x/x%x\n", | |
2155 | ndlp->nlp_DID, irsp->ulpStatus, | |
2156 | irsp->un.ulpWord[4]); | |
dea3101e | 2157 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ |
e47c9093 | 2158 | if (!lpfc_error_lost_link(irsp)) |
2e0fef85 | 2159 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
858c9f6c | 2160 | NLP_EVT_CMPL_ADISC); |
e47c9093 | 2161 | } else |
dea3101e | 2162 | /* Good status, call state machine */ |
2e0fef85 | 2163 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
dea3101e | 2164 | NLP_EVT_CMPL_ADISC); |
dea3101e | 2165 | |
90160e01 JS |
2166 | /* Check to see if there are more ADISCs to be sent */ |
2167 | if (disc && vport->num_disc_nodes) | |
2e0fef85 | 2168 | lpfc_more_adisc(vport); |
dea3101e JB |
2169 | out: |
2170 | lpfc_els_free_iocb(phba, cmdiocb); | |
2171 | return; | |
2172 | } | |
2173 | ||
e59058c4 | 2174 | /** |
3621a710 | 2175 | * lpfc_issue_els_adisc - Issue an address discover iocb to an node on a vport |
e59058c4 JS |
2176 | * @vport: pointer to a virtual N_Port data structure. |
2177 | * @ndlp: pointer to a node-list data structure. | |
2178 | * @retry: number of retries to the command IOCB. | |
2179 | * | |
2180 | * This routine issues an Address Discover (ADISC) for an @ndlp on a | |
2181 | * @vport. It prepares the payload of the ADISC ELS command, updates the | |
2182 | * and states of the ndlp, and invokes the lpfc_sli_issue_iocb() routine | |
2183 | * to issue the ADISC ELS command. | |
2184 | * | |
2185 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
2186 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
2187 | * will be stored into the context1 field of the IOCB for the completion | |
2188 | * callback function to the ADISC ELS command. | |
2189 | * | |
2190 | * Return code | |
2191 | * 0 - successfully issued adisc | |
2192 | * 1 - failed to issue adisc | |
2193 | **/ | |
dea3101e | 2194 | int |
2e0fef85 | 2195 | lpfc_issue_els_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
dea3101e JB |
2196 | uint8_t retry) |
2197 | { | |
2e0fef85 JS |
2198 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
2199 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
2200 | ADISC *ap; |
2201 | IOCB_t *icmd; | |
2202 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
2203 | uint8_t *pcmd; |
2204 | uint16_t cmdsize; | |
2205 | ||
92d7f7b0 | 2206 | cmdsize = (sizeof(uint32_t) + sizeof(ADISC)); |
2e0fef85 JS |
2207 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
2208 | ndlp->nlp_DID, ELS_CMD_ADISC); | |
488d1469 | 2209 | if (!elsiocb) |
c9f8735b | 2210 | return 1; |
dea3101e JB |
2211 | |
2212 | icmd = &elsiocb->iocb; | |
2213 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
2214 | ||
2215 | /* For ADISC request, remainder of payload is service parameters */ | |
2216 | *((uint32_t *) (pcmd)) = ELS_CMD_ADISC; | |
92d7f7b0 | 2217 | pcmd += sizeof(uint32_t); |
dea3101e JB |
2218 | |
2219 | /* Fill in ADISC payload */ | |
2220 | ap = (ADISC *) pcmd; | |
2221 | ap->hardAL_PA = phba->fc_pref_ALPA; | |
92d7f7b0 JS |
2222 | memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name)); |
2223 | memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
2e0fef85 | 2224 | ap->DID = be32_to_cpu(vport->fc_myDID); |
dea3101e | 2225 | |
858c9f6c JS |
2226 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2227 | "Issue ADISC: did:x%x", | |
2228 | ndlp->nlp_DID, 0, 0); | |
2229 | ||
dea3101e JB |
2230 | phba->fc_stat.elsXmitADISC++; |
2231 | elsiocb->iocb_cmpl = lpfc_cmpl_els_adisc; | |
2e0fef85 | 2232 | spin_lock_irq(shost->host_lock); |
dea3101e | 2233 | ndlp->nlp_flag |= NLP_ADISC_SND; |
2e0fef85 | 2234 | spin_unlock_irq(shost->host_lock); |
3772a991 JS |
2235 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
2236 | IOCB_ERROR) { | |
2e0fef85 | 2237 | spin_lock_irq(shost->host_lock); |
dea3101e | 2238 | ndlp->nlp_flag &= ~NLP_ADISC_SND; |
2e0fef85 | 2239 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2240 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 2241 | return 1; |
dea3101e | 2242 | } |
c9f8735b | 2243 | return 0; |
dea3101e JB |
2244 | } |
2245 | ||
e59058c4 | 2246 | /** |
3621a710 | 2247 | * lpfc_cmpl_els_logo - Completion callback function for logo |
e59058c4 JS |
2248 | * @phba: pointer to lpfc hba data structure. |
2249 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
2250 | * @rspiocb: pointer to lpfc response iocb data structure. | |
2251 | * | |
2252 | * This routine is the completion function for issuing the ELS Logout (LOGO) | |
2253 | * command. If no error status was reported from the LOGO response, the | |
2254 | * state machine of the associated ndlp shall be invoked for transition with | |
2255 | * respect to NLP_EVT_CMPL_LOGO event. Otherwise, if error status was reported, | |
2256 | * the lpfc_els_retry() routine will be invoked to retry the LOGO command. | |
2257 | **/ | |
dea3101e | 2258 | static void |
2e0fef85 JS |
2259 | lpfc_cmpl_els_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
2260 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 2261 | { |
2e0fef85 JS |
2262 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; |
2263 | struct lpfc_vport *vport = ndlp->vport; | |
2264 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e JB |
2265 | IOCB_t *irsp; |
2266 | struct lpfc_sli *psli; | |
92494144 | 2267 | struct lpfcMboxq *mbox; |
dea3101e JB |
2268 | |
2269 | psli = &phba->sli; | |
2270 | /* we pass cmdiocb to state machine which needs rspiocb as well */ | |
2271 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
2272 | ||
2273 | irsp = &(rspiocb->iocb); | |
2e0fef85 | 2274 | spin_lock_irq(shost->host_lock); |
dea3101e | 2275 | ndlp->nlp_flag &= ~NLP_LOGO_SND; |
2e0fef85 | 2276 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2277 | |
858c9f6c JS |
2278 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2279 | "LOGO cmpl: status:x%x/x%x did:x%x", | |
2280 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
2281 | ndlp->nlp_DID); | |
dea3101e | 2282 | /* LOGO completes to NPort <nlp_DID> */ |
e8b62011 JS |
2283 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
2284 | "0105 LOGO completes to NPort x%x " | |
2285 | "Data: x%x x%x x%x x%x\n", | |
2286 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
2287 | irsp->ulpTimeout, vport->num_disc_nodes); | |
dea3101e | 2288 | /* Check to see if link went down during discovery */ |
2e0fef85 | 2289 | if (lpfc_els_chk_latt(vport)) |
dea3101e JB |
2290 | goto out; |
2291 | ||
92d7f7b0 JS |
2292 | if (ndlp->nlp_flag & NLP_TARGET_REMOVE) { |
2293 | /* NLP_EVT_DEVICE_RM should unregister the RPI | |
2294 | * which should abort all outstanding IOs. | |
2295 | */ | |
2296 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, | |
2297 | NLP_EVT_DEVICE_RM); | |
2298 | goto out; | |
2299 | } | |
2300 | ||
dea3101e JB |
2301 | if (irsp->ulpStatus) { |
2302 | /* Check for retry */ | |
2e0fef85 | 2303 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) |
dea3101e JB |
2304 | /* ELS command is being retried */ |
2305 | goto out; | |
dea3101e | 2306 | /* LOGO failed */ |
e40a02c1 JS |
2307 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
2308 | "2756 LOGO failure DID:%06X Status:x%x/x%x\n", | |
2309 | ndlp->nlp_DID, irsp->ulpStatus, | |
2310 | irsp->un.ulpWord[4]); | |
dea3101e | 2311 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ |
858c9f6c | 2312 | if (lpfc_error_lost_link(irsp)) |
dea3101e | 2313 | goto out; |
858c9f6c | 2314 | else |
2e0fef85 | 2315 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 2316 | NLP_EVT_CMPL_LOGO); |
e47c9093 | 2317 | } else |
5024ab17 JW |
2318 | /* Good status, call state machine. |
2319 | * This will unregister the rpi if needed. | |
2320 | */ | |
2e0fef85 | 2321 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 2322 | NLP_EVT_CMPL_LOGO); |
dea3101e JB |
2323 | out: |
2324 | lpfc_els_free_iocb(phba, cmdiocb); | |
92494144 JS |
2325 | /* If we are in pt2pt mode, we could rcv new S_ID on PLOGI */ |
2326 | if ((vport->fc_flag & FC_PT2PT) && | |
2327 | !(vport->fc_flag & FC_PT2PT_PLOGI)) { | |
2328 | phba->pport->fc_myDID = 0; | |
2329 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
2330 | if (mbox) { | |
2331 | lpfc_config_link(phba, mbox); | |
2332 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
2333 | mbox->vport = vport; | |
2334 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) == | |
2335 | MBX_NOT_FINISHED) { | |
2336 | mempool_free(mbox, phba->mbox_mem_pool); | |
2337 | } | |
2338 | } | |
2339 | } | |
dea3101e JB |
2340 | return; |
2341 | } | |
2342 | ||
e59058c4 | 2343 | /** |
3621a710 | 2344 | * lpfc_issue_els_logo - Issue a logo to an node on a vport |
e59058c4 JS |
2345 | * @vport: pointer to a virtual N_Port data structure. |
2346 | * @ndlp: pointer to a node-list data structure. | |
2347 | * @retry: number of retries to the command IOCB. | |
2348 | * | |
2349 | * This routine constructs and issues an ELS Logout (LOGO) iocb command | |
2350 | * to a remote node, referred by an @ndlp on a @vport. It constructs the | |
2351 | * payload of the IOCB, properly sets up the @ndlp state, and invokes the | |
2352 | * lpfc_sli_issue_iocb() routine to send out the LOGO ELS command. | |
2353 | * | |
2354 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
2355 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
2356 | * will be stored into the context1 field of the IOCB for the completion | |
2357 | * callback function to the LOGO ELS command. | |
2358 | * | |
2359 | * Return code | |
2360 | * 0 - successfully issued logo | |
2361 | * 1 - failed to issue logo | |
2362 | **/ | |
dea3101e | 2363 | int |
2e0fef85 | 2364 | lpfc_issue_els_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
dea3101e JB |
2365 | uint8_t retry) |
2366 | { | |
2e0fef85 JS |
2367 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
2368 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
2369 | IOCB_t *icmd; |
2370 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
2371 | uint8_t *pcmd; |
2372 | uint16_t cmdsize; | |
92d7f7b0 | 2373 | int rc; |
dea3101e | 2374 | |
98c9ea5c JS |
2375 | spin_lock_irq(shost->host_lock); |
2376 | if (ndlp->nlp_flag & NLP_LOGO_SND) { | |
2377 | spin_unlock_irq(shost->host_lock); | |
2378 | return 0; | |
2379 | } | |
2380 | spin_unlock_irq(shost->host_lock); | |
2381 | ||
92d7f7b0 | 2382 | cmdsize = (2 * sizeof(uint32_t)) + sizeof(struct lpfc_name); |
2e0fef85 JS |
2383 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
2384 | ndlp->nlp_DID, ELS_CMD_LOGO); | |
488d1469 | 2385 | if (!elsiocb) |
c9f8735b | 2386 | return 1; |
dea3101e JB |
2387 | |
2388 | icmd = &elsiocb->iocb; | |
2389 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
2390 | *((uint32_t *) (pcmd)) = ELS_CMD_LOGO; | |
92d7f7b0 | 2391 | pcmd += sizeof(uint32_t); |
dea3101e JB |
2392 | |
2393 | /* Fill in LOGO payload */ | |
2e0fef85 | 2394 | *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID); |
92d7f7b0 JS |
2395 | pcmd += sizeof(uint32_t); |
2396 | memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name)); | |
dea3101e | 2397 | |
858c9f6c JS |
2398 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2399 | "Issue LOGO: did:x%x", | |
2400 | ndlp->nlp_DID, 0, 0); | |
2401 | ||
dea3101e JB |
2402 | phba->fc_stat.elsXmitLOGO++; |
2403 | elsiocb->iocb_cmpl = lpfc_cmpl_els_logo; | |
2e0fef85 | 2404 | spin_lock_irq(shost->host_lock); |
dea3101e | 2405 | ndlp->nlp_flag |= NLP_LOGO_SND; |
2e0fef85 | 2406 | spin_unlock_irq(shost->host_lock); |
3772a991 | 2407 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
92d7f7b0 JS |
2408 | |
2409 | if (rc == IOCB_ERROR) { | |
2e0fef85 | 2410 | spin_lock_irq(shost->host_lock); |
dea3101e | 2411 | ndlp->nlp_flag &= ~NLP_LOGO_SND; |
2e0fef85 | 2412 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2413 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 2414 | return 1; |
dea3101e | 2415 | } |
c9f8735b | 2416 | return 0; |
dea3101e JB |
2417 | } |
2418 | ||
e59058c4 | 2419 | /** |
3621a710 | 2420 | * lpfc_cmpl_els_cmd - Completion callback function for generic els command |
e59058c4 JS |
2421 | * @phba: pointer to lpfc hba data structure. |
2422 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
2423 | * @rspiocb: pointer to lpfc response iocb data structure. | |
2424 | * | |
2425 | * This routine is a generic completion callback function for ELS commands. | |
2426 | * Specifically, it is the callback function which does not need to perform | |
2427 | * any command specific operations. It is currently used by the ELS command | |
2428 | * issuing routines for the ELS State Change Request (SCR), | |
2429 | * lpfc_issue_els_scr(), and the ELS Fibre Channel Address Resolution | |
2430 | * Protocol Response (FARPR) routine, lpfc_issue_els_farpr(). Other than | |
2431 | * certain debug loggings, this callback function simply invokes the | |
2432 | * lpfc_els_chk_latt() routine to check whether link went down during the | |
2433 | * discovery process. | |
2434 | **/ | |
dea3101e | 2435 | static void |
2e0fef85 JS |
2436 | lpfc_cmpl_els_cmd(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
2437 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 2438 | { |
2e0fef85 | 2439 | struct lpfc_vport *vport = cmdiocb->vport; |
dea3101e JB |
2440 | IOCB_t *irsp; |
2441 | ||
2442 | irsp = &rspiocb->iocb; | |
2443 | ||
858c9f6c JS |
2444 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2445 | "ELS cmd cmpl: status:x%x/x%x did:x%x", | |
2446 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
2447 | irsp->un.elsreq64.remoteID); | |
dea3101e | 2448 | /* ELS cmd tag <ulpIoTag> completes */ |
e8b62011 JS |
2449 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
2450 | "0106 ELS cmd tag x%x completes Data: x%x x%x x%x\n", | |
2451 | irsp->ulpIoTag, irsp->ulpStatus, | |
2452 | irsp->un.ulpWord[4], irsp->ulpTimeout); | |
dea3101e | 2453 | /* Check to see if link went down during discovery */ |
2e0fef85 | 2454 | lpfc_els_chk_latt(vport); |
dea3101e JB |
2455 | lpfc_els_free_iocb(phba, cmdiocb); |
2456 | return; | |
2457 | } | |
2458 | ||
e59058c4 | 2459 | /** |
3621a710 | 2460 | * lpfc_issue_els_scr - Issue a scr to an node on a vport |
e59058c4 JS |
2461 | * @vport: pointer to a host virtual N_Port data structure. |
2462 | * @nportid: N_Port identifier to the remote node. | |
2463 | * @retry: number of retries to the command IOCB. | |
2464 | * | |
2465 | * This routine issues a State Change Request (SCR) to a fabric node | |
2466 | * on a @vport. The remote node @nportid is passed into the function. It | |
2467 | * first search the @vport node list to find the matching ndlp. If no such | |
2468 | * ndlp is found, a new ndlp shall be created for this (SCR) purpose. An | |
2469 | * IOCB is allocated, payload prepared, and the lpfc_sli_issue_iocb() | |
2470 | * routine is invoked to send the SCR IOCB. | |
2471 | * | |
2472 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
2473 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
2474 | * will be stored into the context1 field of the IOCB for the completion | |
2475 | * callback function to the SCR ELS command. | |
2476 | * | |
2477 | * Return code | |
2478 | * 0 - Successfully issued scr command | |
2479 | * 1 - Failed to issue scr command | |
2480 | **/ | |
dea3101e | 2481 | int |
2e0fef85 | 2482 | lpfc_issue_els_scr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry) |
dea3101e | 2483 | { |
2e0fef85 | 2484 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
2485 | IOCB_t *icmd; |
2486 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
2487 | struct lpfc_sli *psli; |
2488 | uint8_t *pcmd; | |
2489 | uint16_t cmdsize; | |
2490 | struct lpfc_nodelist *ndlp; | |
2491 | ||
2492 | psli = &phba->sli; | |
92d7f7b0 | 2493 | cmdsize = (sizeof(uint32_t) + sizeof(SCR)); |
dea3101e | 2494 | |
e47c9093 JS |
2495 | ndlp = lpfc_findnode_did(vport, nportid); |
2496 | if (!ndlp) { | |
2497 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
2498 | if (!ndlp) | |
2499 | return 1; | |
2500 | lpfc_nlp_init(vport, ndlp, nportid); | |
2501 | lpfc_enqueue_node(vport, ndlp); | |
2502 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
2503 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
2504 | if (!ndlp) | |
2505 | return 1; | |
2506 | } | |
2e0fef85 JS |
2507 | |
2508 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, | |
2509 | ndlp->nlp_DID, ELS_CMD_SCR); | |
dea3101e | 2510 | |
488d1469 | 2511 | if (!elsiocb) { |
fa4066b6 JS |
2512 | /* This will trigger the release of the node just |
2513 | * allocated | |
2514 | */ | |
329f9bc7 | 2515 | lpfc_nlp_put(ndlp); |
c9f8735b | 2516 | return 1; |
dea3101e JB |
2517 | } |
2518 | ||
2519 | icmd = &elsiocb->iocb; | |
2520 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
2521 | ||
2522 | *((uint32_t *) (pcmd)) = ELS_CMD_SCR; | |
92d7f7b0 | 2523 | pcmd += sizeof(uint32_t); |
dea3101e JB |
2524 | |
2525 | /* For SCR, remainder of payload is SCR parameter page */ | |
92d7f7b0 | 2526 | memset(pcmd, 0, sizeof(SCR)); |
dea3101e JB |
2527 | ((SCR *) pcmd)->Function = SCR_FUNC_FULL; |
2528 | ||
858c9f6c JS |
2529 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2530 | "Issue SCR: did:x%x", | |
2531 | ndlp->nlp_DID, 0, 0); | |
2532 | ||
dea3101e JB |
2533 | phba->fc_stat.elsXmitSCR++; |
2534 | elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd; | |
3772a991 JS |
2535 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
2536 | IOCB_ERROR) { | |
fa4066b6 JS |
2537 | /* The additional lpfc_nlp_put will cause the following |
2538 | * lpfc_els_free_iocb routine to trigger the rlease of | |
2539 | * the node. | |
2540 | */ | |
329f9bc7 | 2541 | lpfc_nlp_put(ndlp); |
dea3101e | 2542 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 2543 | return 1; |
dea3101e | 2544 | } |
fa4066b6 JS |
2545 | /* This will cause the callback-function lpfc_cmpl_els_cmd to |
2546 | * trigger the release of node. | |
2547 | */ | |
329f9bc7 | 2548 | lpfc_nlp_put(ndlp); |
c9f8735b | 2549 | return 0; |
dea3101e JB |
2550 | } |
2551 | ||
e59058c4 | 2552 | /** |
3621a710 | 2553 | * lpfc_issue_els_farpr - Issue a farp to an node on a vport |
e59058c4 JS |
2554 | * @vport: pointer to a host virtual N_Port data structure. |
2555 | * @nportid: N_Port identifier to the remote node. | |
2556 | * @retry: number of retries to the command IOCB. | |
2557 | * | |
2558 | * This routine issues a Fibre Channel Address Resolution Response | |
2559 | * (FARPR) to a node on a vport. The remote node N_Port identifier (@nportid) | |
2560 | * is passed into the function. It first search the @vport node list to find | |
2561 | * the matching ndlp. If no such ndlp is found, a new ndlp shall be created | |
2562 | * for this (FARPR) purpose. An IOCB is allocated, payload prepared, and the | |
2563 | * lpfc_sli_issue_iocb() routine is invoked to send the FARPR ELS command. | |
2564 | * | |
2565 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
2566 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
2567 | * will be stored into the context1 field of the IOCB for the completion | |
2568 | * callback function to the PARPR ELS command. | |
2569 | * | |
2570 | * Return code | |
2571 | * 0 - Successfully issued farpr command | |
2572 | * 1 - Failed to issue farpr command | |
2573 | **/ | |
dea3101e | 2574 | static int |
2e0fef85 | 2575 | lpfc_issue_els_farpr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry) |
dea3101e | 2576 | { |
2e0fef85 | 2577 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
2578 | IOCB_t *icmd; |
2579 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
2580 | struct lpfc_sli *psli; |
2581 | FARP *fp; | |
2582 | uint8_t *pcmd; | |
2583 | uint32_t *lp; | |
2584 | uint16_t cmdsize; | |
2585 | struct lpfc_nodelist *ondlp; | |
2586 | struct lpfc_nodelist *ndlp; | |
2587 | ||
2588 | psli = &phba->sli; | |
92d7f7b0 | 2589 | cmdsize = (sizeof(uint32_t) + sizeof(FARP)); |
dea3101e | 2590 | |
e47c9093 JS |
2591 | ndlp = lpfc_findnode_did(vport, nportid); |
2592 | if (!ndlp) { | |
2593 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
2594 | if (!ndlp) | |
2595 | return 1; | |
2596 | lpfc_nlp_init(vport, ndlp, nportid); | |
2597 | lpfc_enqueue_node(vport, ndlp); | |
2598 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
2599 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
2600 | if (!ndlp) | |
2601 | return 1; | |
2602 | } | |
2e0fef85 JS |
2603 | |
2604 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, | |
2605 | ndlp->nlp_DID, ELS_CMD_RNID); | |
488d1469 | 2606 | if (!elsiocb) { |
fa4066b6 JS |
2607 | /* This will trigger the release of the node just |
2608 | * allocated | |
2609 | */ | |
329f9bc7 | 2610 | lpfc_nlp_put(ndlp); |
c9f8735b | 2611 | return 1; |
dea3101e JB |
2612 | } |
2613 | ||
2614 | icmd = &elsiocb->iocb; | |
2615 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
2616 | ||
2617 | *((uint32_t *) (pcmd)) = ELS_CMD_FARPR; | |
92d7f7b0 | 2618 | pcmd += sizeof(uint32_t); |
dea3101e JB |
2619 | |
2620 | /* Fill in FARPR payload */ | |
2621 | fp = (FARP *) (pcmd); | |
92d7f7b0 | 2622 | memset(fp, 0, sizeof(FARP)); |
dea3101e JB |
2623 | lp = (uint32_t *) pcmd; |
2624 | *lp++ = be32_to_cpu(nportid); | |
2e0fef85 | 2625 | *lp++ = be32_to_cpu(vport->fc_myDID); |
dea3101e JB |
2626 | fp->Rflags = 0; |
2627 | fp->Mflags = (FARP_MATCH_PORT | FARP_MATCH_NODE); | |
2628 | ||
92d7f7b0 JS |
2629 | memcpy(&fp->RportName, &vport->fc_portname, sizeof(struct lpfc_name)); |
2630 | memcpy(&fp->RnodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
2e0fef85 | 2631 | ondlp = lpfc_findnode_did(vport, nportid); |
e47c9093 | 2632 | if (ondlp && NLP_CHK_NODE_ACT(ondlp)) { |
dea3101e | 2633 | memcpy(&fp->OportName, &ondlp->nlp_portname, |
92d7f7b0 | 2634 | sizeof(struct lpfc_name)); |
dea3101e | 2635 | memcpy(&fp->OnodeName, &ondlp->nlp_nodename, |
92d7f7b0 | 2636 | sizeof(struct lpfc_name)); |
dea3101e JB |
2637 | } |
2638 | ||
858c9f6c JS |
2639 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2640 | "Issue FARPR: did:x%x", | |
2641 | ndlp->nlp_DID, 0, 0); | |
2642 | ||
dea3101e JB |
2643 | phba->fc_stat.elsXmitFARPR++; |
2644 | elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd; | |
3772a991 JS |
2645 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
2646 | IOCB_ERROR) { | |
fa4066b6 JS |
2647 | /* The additional lpfc_nlp_put will cause the following |
2648 | * lpfc_els_free_iocb routine to trigger the release of | |
2649 | * the node. | |
2650 | */ | |
329f9bc7 | 2651 | lpfc_nlp_put(ndlp); |
dea3101e | 2652 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 2653 | return 1; |
dea3101e | 2654 | } |
fa4066b6 JS |
2655 | /* This will cause the callback-function lpfc_cmpl_els_cmd to |
2656 | * trigger the release of the node. | |
2657 | */ | |
329f9bc7 | 2658 | lpfc_nlp_put(ndlp); |
c9f8735b | 2659 | return 0; |
dea3101e JB |
2660 | } |
2661 | ||
e59058c4 | 2662 | /** |
3621a710 | 2663 | * lpfc_cancel_retry_delay_tmo - Cancel the timer with delayed iocb-cmd retry |
e59058c4 JS |
2664 | * @vport: pointer to a host virtual N_Port data structure. |
2665 | * @nlp: pointer to a node-list data structure. | |
2666 | * | |
2667 | * This routine cancels the timer with a delayed IOCB-command retry for | |
2668 | * a @vport's @ndlp. It stops the timer for the delayed function retrial and | |
2669 | * removes the ELS retry event if it presents. In addition, if the | |
2670 | * NLP_NPR_2B_DISC bit is set in the @nlp's nlp_flag bitmap, ADISC IOCB | |
2671 | * commands are sent for the @vport's nodes that require issuing discovery | |
2672 | * ADISC. | |
2673 | **/ | |
fdcebe28 | 2674 | void |
2e0fef85 | 2675 | lpfc_cancel_retry_delay_tmo(struct lpfc_vport *vport, struct lpfc_nodelist *nlp) |
fdcebe28 | 2676 | { |
2e0fef85 | 2677 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
e47c9093 | 2678 | struct lpfc_work_evt *evtp; |
2e0fef85 | 2679 | |
0d2b6b83 JS |
2680 | if (!(nlp->nlp_flag & NLP_DELAY_TMO)) |
2681 | return; | |
2e0fef85 | 2682 | spin_lock_irq(shost->host_lock); |
fdcebe28 | 2683 | nlp->nlp_flag &= ~NLP_DELAY_TMO; |
2e0fef85 | 2684 | spin_unlock_irq(shost->host_lock); |
fdcebe28 JS |
2685 | del_timer_sync(&nlp->nlp_delayfunc); |
2686 | nlp->nlp_last_elscmd = 0; | |
e47c9093 | 2687 | if (!list_empty(&nlp->els_retry_evt.evt_listp)) { |
fdcebe28 | 2688 | list_del_init(&nlp->els_retry_evt.evt_listp); |
e47c9093 JS |
2689 | /* Decrement nlp reference count held for the delayed retry */ |
2690 | evtp = &nlp->els_retry_evt; | |
2691 | lpfc_nlp_put((struct lpfc_nodelist *)evtp->evt_arg1); | |
2692 | } | |
fdcebe28 | 2693 | if (nlp->nlp_flag & NLP_NPR_2B_DISC) { |
2e0fef85 | 2694 | spin_lock_irq(shost->host_lock); |
fdcebe28 | 2695 | nlp->nlp_flag &= ~NLP_NPR_2B_DISC; |
2e0fef85 JS |
2696 | spin_unlock_irq(shost->host_lock); |
2697 | if (vport->num_disc_nodes) { | |
0d2b6b83 JS |
2698 | if (vport->port_state < LPFC_VPORT_READY) { |
2699 | /* Check if there are more ADISCs to be sent */ | |
2700 | lpfc_more_adisc(vport); | |
0d2b6b83 JS |
2701 | } else { |
2702 | /* Check if there are more PLOGIs to be sent */ | |
2703 | lpfc_more_plogi(vport); | |
90160e01 JS |
2704 | if (vport->num_disc_nodes == 0) { |
2705 | spin_lock_irq(shost->host_lock); | |
2706 | vport->fc_flag &= ~FC_NDISC_ACTIVE; | |
2707 | spin_unlock_irq(shost->host_lock); | |
2708 | lpfc_can_disctmo(vport); | |
2709 | lpfc_end_rscn(vport); | |
2710 | } | |
fdcebe28 JS |
2711 | } |
2712 | } | |
2713 | } | |
2714 | return; | |
2715 | } | |
2716 | ||
e59058c4 | 2717 | /** |
3621a710 | 2718 | * lpfc_els_retry_delay - Timer function with a ndlp delayed function timer |
e59058c4 JS |
2719 | * @ptr: holder for the pointer to the timer function associated data (ndlp). |
2720 | * | |
2721 | * This routine is invoked by the ndlp delayed-function timer to check | |
2722 | * whether there is any pending ELS retry event(s) with the node. If not, it | |
2723 | * simply returns. Otherwise, if there is at least one ELS delayed event, it | |
2724 | * adds the delayed events to the HBA work list and invokes the | |
2725 | * lpfc_worker_wake_up() routine to wake up worker thread to process the | |
2726 | * event. Note that lpfc_nlp_get() is called before posting the event to | |
2727 | * the work list to hold reference count of ndlp so that it guarantees the | |
2728 | * reference to ndlp will still be available when the worker thread gets | |
2729 | * to the event associated with the ndlp. | |
2730 | **/ | |
dea3101e JB |
2731 | void |
2732 | lpfc_els_retry_delay(unsigned long ptr) | |
2733 | { | |
2e0fef85 JS |
2734 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) ptr; |
2735 | struct lpfc_vport *vport = ndlp->vport; | |
2e0fef85 | 2736 | struct lpfc_hba *phba = vport->phba; |
92d7f7b0 | 2737 | unsigned long flags; |
2e0fef85 | 2738 | struct lpfc_work_evt *evtp = &ndlp->els_retry_evt; |
dea3101e | 2739 | |
92d7f7b0 | 2740 | spin_lock_irqsave(&phba->hbalock, flags); |
dea3101e | 2741 | if (!list_empty(&evtp->evt_listp)) { |
92d7f7b0 | 2742 | spin_unlock_irqrestore(&phba->hbalock, flags); |
dea3101e JB |
2743 | return; |
2744 | } | |
2745 | ||
fa4066b6 JS |
2746 | /* We need to hold the node by incrementing the reference |
2747 | * count until the queued work is done | |
2748 | */ | |
2749 | evtp->evt_arg1 = lpfc_nlp_get(ndlp); | |
5e9d9b82 JS |
2750 | if (evtp->evt_arg1) { |
2751 | evtp->evt = LPFC_EVT_ELS_RETRY; | |
2752 | list_add_tail(&evtp->evt_listp, &phba->work_list); | |
92d7f7b0 | 2753 | lpfc_worker_wake_up(phba); |
5e9d9b82 | 2754 | } |
92d7f7b0 | 2755 | spin_unlock_irqrestore(&phba->hbalock, flags); |
dea3101e JB |
2756 | return; |
2757 | } | |
2758 | ||
e59058c4 | 2759 | /** |
3621a710 | 2760 | * lpfc_els_retry_delay_handler - Work thread handler for ndlp delayed function |
e59058c4 JS |
2761 | * @ndlp: pointer to a node-list data structure. |
2762 | * | |
2763 | * This routine is the worker-thread handler for processing the @ndlp delayed | |
2764 | * event(s), posted by the lpfc_els_retry_delay() routine. It simply retrieves | |
2765 | * the last ELS command from the associated ndlp and invokes the proper ELS | |
2766 | * function according to the delayed ELS command to retry the command. | |
2767 | **/ | |
dea3101e JB |
2768 | void |
2769 | lpfc_els_retry_delay_handler(struct lpfc_nodelist *ndlp) | |
2770 | { | |
2e0fef85 JS |
2771 | struct lpfc_vport *vport = ndlp->vport; |
2772 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
2773 | uint32_t cmd, did, retry; | |
dea3101e | 2774 | |
2e0fef85 | 2775 | spin_lock_irq(shost->host_lock); |
5024ab17 JW |
2776 | did = ndlp->nlp_DID; |
2777 | cmd = ndlp->nlp_last_elscmd; | |
2778 | ndlp->nlp_last_elscmd = 0; | |
dea3101e JB |
2779 | |
2780 | if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { | |
2e0fef85 | 2781 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
2782 | return; |
2783 | } | |
2784 | ||
2785 | ndlp->nlp_flag &= ~NLP_DELAY_TMO; | |
2e0fef85 | 2786 | spin_unlock_irq(shost->host_lock); |
1a169689 JS |
2787 | /* |
2788 | * If a discovery event readded nlp_delayfunc after timer | |
2789 | * firing and before processing the timer, cancel the | |
2790 | * nlp_delayfunc. | |
2791 | */ | |
2792 | del_timer_sync(&ndlp->nlp_delayfunc); | |
dea3101e | 2793 | retry = ndlp->nlp_retry; |
4d9ab994 | 2794 | ndlp->nlp_retry = 0; |
dea3101e JB |
2795 | |
2796 | switch (cmd) { | |
2797 | case ELS_CMD_FLOGI: | |
2e0fef85 | 2798 | lpfc_issue_els_flogi(vport, ndlp, retry); |
dea3101e JB |
2799 | break; |
2800 | case ELS_CMD_PLOGI: | |
2e0fef85 | 2801 | if (!lpfc_issue_els_plogi(vport, ndlp->nlp_DID, retry)) { |
5024ab17 | 2802 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 2803 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); |
6ad42535 | 2804 | } |
dea3101e JB |
2805 | break; |
2806 | case ELS_CMD_ADISC: | |
2e0fef85 | 2807 | if (!lpfc_issue_els_adisc(vport, ndlp, retry)) { |
5024ab17 | 2808 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 2809 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); |
6ad42535 | 2810 | } |
dea3101e JB |
2811 | break; |
2812 | case ELS_CMD_PRLI: | |
2e0fef85 | 2813 | if (!lpfc_issue_els_prli(vport, ndlp, retry)) { |
5024ab17 | 2814 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 2815 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); |
6ad42535 | 2816 | } |
dea3101e JB |
2817 | break; |
2818 | case ELS_CMD_LOGO: | |
2e0fef85 | 2819 | if (!lpfc_issue_els_logo(vport, ndlp, retry)) { |
5024ab17 | 2820 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 2821 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
6ad42535 | 2822 | } |
dea3101e | 2823 | break; |
92d7f7b0 | 2824 | case ELS_CMD_FDISC: |
fedd3b7b JS |
2825 | if (!(vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI)) |
2826 | lpfc_issue_els_fdisc(vport, ndlp, retry); | |
92d7f7b0 | 2827 | break; |
dea3101e JB |
2828 | } |
2829 | return; | |
2830 | } | |
2831 | ||
e59058c4 | 2832 | /** |
3621a710 | 2833 | * lpfc_els_retry - Make retry decision on an els command iocb |
e59058c4 JS |
2834 | * @phba: pointer to lpfc hba data structure. |
2835 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
2836 | * @rspiocb: pointer to lpfc response iocb data structure. | |
2837 | * | |
2838 | * This routine makes a retry decision on an ELS command IOCB, which has | |
2839 | * failed. The following ELS IOCBs use this function for retrying the command | |
2840 | * when previously issued command responsed with error status: FLOGI, PLOGI, | |
2841 | * PRLI, ADISC, LOGO, and FDISC. Based on the ELS command type and the | |
2842 | * returned error status, it makes the decision whether a retry shall be | |
2843 | * issued for the command, and whether a retry shall be made immediately or | |
2844 | * delayed. In the former case, the corresponding ELS command issuing-function | |
2845 | * is called to retry the command. In the later case, the ELS command shall | |
2846 | * be posted to the ndlp delayed event and delayed function timer set to the | |
2847 | * ndlp for the delayed command issusing. | |
2848 | * | |
2849 | * Return code | |
2850 | * 0 - No retry of els command is made | |
2851 | * 1 - Immediate or delayed retry of els command is made | |
2852 | **/ | |
dea3101e | 2853 | static int |
2e0fef85 JS |
2854 | lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
2855 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 2856 | { |
2e0fef85 JS |
2857 | struct lpfc_vport *vport = cmdiocb->vport; |
2858 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
2859 | IOCB_t *irsp = &rspiocb->iocb; | |
2860 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
2861 | struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
dea3101e JB |
2862 | uint32_t *elscmd; |
2863 | struct ls_rjt stat; | |
2e0fef85 | 2864 | int retry = 0, maxretry = lpfc_max_els_tries, delay = 0; |
98c9ea5c | 2865 | int logerr = 0; |
2e0fef85 | 2866 | uint32_t cmd = 0; |
488d1469 | 2867 | uint32_t did; |
dea3101e | 2868 | |
488d1469 | 2869 | |
dea3101e JB |
2870 | /* Note: context2 may be 0 for internal driver abort |
2871 | * of delays ELS command. | |
2872 | */ | |
2873 | ||
2874 | if (pcmd && pcmd->virt) { | |
2875 | elscmd = (uint32_t *) (pcmd->virt); | |
2876 | cmd = *elscmd++; | |
2877 | } | |
2878 | ||
e47c9093 | 2879 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) |
488d1469 JS |
2880 | did = ndlp->nlp_DID; |
2881 | else { | |
2882 | /* We should only hit this case for retrying PLOGI */ | |
2883 | did = irsp->un.elsreq64.remoteID; | |
2e0fef85 | 2884 | ndlp = lpfc_findnode_did(vport, did); |
e47c9093 JS |
2885 | if ((!ndlp || !NLP_CHK_NODE_ACT(ndlp)) |
2886 | && (cmd != ELS_CMD_PLOGI)) | |
488d1469 JS |
2887 | return 1; |
2888 | } | |
2889 | ||
858c9f6c JS |
2890 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2891 | "Retry ELS: wd7:x%x wd4:x%x did:x%x", | |
2892 | *(((uint32_t *) irsp) + 7), irsp->un.ulpWord[4], ndlp->nlp_DID); | |
2893 | ||
dea3101e JB |
2894 | switch (irsp->ulpStatus) { |
2895 | case IOSTAT_FCP_RSP_ERROR: | |
1151e3ec | 2896 | break; |
dea3101e | 2897 | case IOSTAT_REMOTE_STOP: |
1151e3ec JS |
2898 | if (phba->sli_rev == LPFC_SLI_REV4) { |
2899 | /* This IO was aborted by the target, we don't | |
2900 | * know the rxid and because we did not send the | |
2901 | * ABTS we cannot generate and RRQ. | |
2902 | */ | |
2903 | lpfc_set_rrq_active(phba, ndlp, | |
2904 | cmdiocb->sli4_xritag, 0, 0); | |
2905 | } | |
dea3101e | 2906 | break; |
dea3101e JB |
2907 | case IOSTAT_LOCAL_REJECT: |
2908 | switch ((irsp->un.ulpWord[4] & 0xff)) { | |
2909 | case IOERR_LOOP_OPEN_FAILURE: | |
eaf15d5b JS |
2910 | if (cmd == ELS_CMD_FLOGI) { |
2911 | if (PCI_DEVICE_ID_HORNET == | |
2912 | phba->pcidev->device) { | |
76a95d75 | 2913 | phba->fc_topology = LPFC_TOPOLOGY_LOOP; |
eaf15d5b JS |
2914 | phba->pport->fc_myDID = 0; |
2915 | phba->alpa_map[0] = 0; | |
2916 | phba->alpa_map[1] = 0; | |
2917 | } | |
2918 | } | |
2e0fef85 | 2919 | if (cmd == ELS_CMD_PLOGI && cmdiocb->retry == 0) |
92d7f7b0 | 2920 | delay = 1000; |
dea3101e JB |
2921 | retry = 1; |
2922 | break; | |
2923 | ||
92d7f7b0 | 2924 | case IOERR_ILLEGAL_COMMAND: |
7f5f3d0d JS |
2925 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
2926 | "0124 Retry illegal cmd x%x " | |
2927 | "retry:x%x delay:x%x\n", | |
2928 | cmd, cmdiocb->retry, delay); | |
2929 | retry = 1; | |
2930 | /* All command's retry policy */ | |
2931 | maxretry = 8; | |
2932 | if (cmdiocb->retry > 2) | |
2933 | delay = 1000; | |
92d7f7b0 JS |
2934 | break; |
2935 | ||
dea3101e | 2936 | case IOERR_NO_RESOURCES: |
98c9ea5c | 2937 | logerr = 1; /* HBA out of resources */ |
858c9f6c JS |
2938 | retry = 1; |
2939 | if (cmdiocb->retry > 100) | |
2940 | delay = 100; | |
2941 | maxretry = 250; | |
2942 | break; | |
2943 | ||
2944 | case IOERR_ILLEGAL_FRAME: | |
92d7f7b0 | 2945 | delay = 100; |
dea3101e JB |
2946 | retry = 1; |
2947 | break; | |
2948 | ||
858c9f6c | 2949 | case IOERR_SEQUENCE_TIMEOUT: |
dea3101e JB |
2950 | case IOERR_INVALID_RPI: |
2951 | retry = 1; | |
2952 | break; | |
2953 | } | |
2954 | break; | |
2955 | ||
2956 | case IOSTAT_NPORT_RJT: | |
2957 | case IOSTAT_FABRIC_RJT: | |
2958 | if (irsp->un.ulpWord[4] & RJT_UNAVAIL_TEMP) { | |
2959 | retry = 1; | |
2960 | break; | |
2961 | } | |
2962 | break; | |
2963 | ||
2964 | case IOSTAT_NPORT_BSY: | |
2965 | case IOSTAT_FABRIC_BSY: | |
98c9ea5c | 2966 | logerr = 1; /* Fabric / Remote NPort out of resources */ |
dea3101e JB |
2967 | retry = 1; |
2968 | break; | |
2969 | ||
2970 | case IOSTAT_LS_RJT: | |
2971 | stat.un.lsRjtError = be32_to_cpu(irsp->un.ulpWord[4]); | |
2972 | /* Added for Vendor specifc support | |
2973 | * Just keep retrying for these Rsn / Exp codes | |
2974 | */ | |
2975 | switch (stat.un.b.lsRjtRsnCode) { | |
2976 | case LSRJT_UNABLE_TPC: | |
2977 | if (stat.un.b.lsRjtRsnCodeExp == | |
2978 | LSEXP_CMD_IN_PROGRESS) { | |
2979 | if (cmd == ELS_CMD_PLOGI) { | |
92d7f7b0 | 2980 | delay = 1000; |
dea3101e JB |
2981 | maxretry = 48; |
2982 | } | |
2983 | retry = 1; | |
2984 | break; | |
2985 | } | |
ffc95493 JS |
2986 | if (stat.un.b.lsRjtRsnCodeExp == |
2987 | LSEXP_CANT_GIVE_DATA) { | |
2988 | if (cmd == ELS_CMD_PLOGI) { | |
2989 | delay = 1000; | |
2990 | maxretry = 48; | |
2991 | } | |
2992 | retry = 1; | |
2993 | break; | |
2994 | } | |
dea3101e | 2995 | if (cmd == ELS_CMD_PLOGI) { |
92d7f7b0 | 2996 | delay = 1000; |
dea3101e JB |
2997 | maxretry = lpfc_max_els_tries + 1; |
2998 | retry = 1; | |
2999 | break; | |
3000 | } | |
92d7f7b0 JS |
3001 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && |
3002 | (cmd == ELS_CMD_FDISC) && | |
3003 | (stat.un.b.lsRjtRsnCodeExp == LSEXP_OUT_OF_RESOURCE)){ | |
e8b62011 JS |
3004 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
3005 | "0125 FDISC Failed (x%x). " | |
3006 | "Fabric out of resources\n", | |
3007 | stat.un.lsRjtError); | |
92d7f7b0 JS |
3008 | lpfc_vport_set_state(vport, |
3009 | FC_VPORT_NO_FABRIC_RSCS); | |
3010 | } | |
dea3101e JB |
3011 | break; |
3012 | ||
3013 | case LSRJT_LOGICAL_BSY: | |
858c9f6c JS |
3014 | if ((cmd == ELS_CMD_PLOGI) || |
3015 | (cmd == ELS_CMD_PRLI)) { | |
92d7f7b0 | 3016 | delay = 1000; |
dea3101e | 3017 | maxretry = 48; |
92d7f7b0 | 3018 | } else if (cmd == ELS_CMD_FDISC) { |
51ef4c26 JS |
3019 | /* FDISC retry policy */ |
3020 | maxretry = 48; | |
3021 | if (cmdiocb->retry >= 32) | |
3022 | delay = 1000; | |
dea3101e JB |
3023 | } |
3024 | retry = 1; | |
3025 | break; | |
92d7f7b0 JS |
3026 | |
3027 | case LSRJT_LOGICAL_ERR: | |
7f5f3d0d JS |
3028 | /* There are some cases where switches return this |
3029 | * error when they are not ready and should be returning | |
3030 | * Logical Busy. We should delay every time. | |
3031 | */ | |
3032 | if (cmd == ELS_CMD_FDISC && | |
3033 | stat.un.b.lsRjtRsnCodeExp == LSEXP_PORT_LOGIN_REQ) { | |
3034 | maxretry = 3; | |
3035 | delay = 1000; | |
3036 | retry = 1; | |
3037 | break; | |
3038 | } | |
92d7f7b0 JS |
3039 | case LSRJT_PROTOCOL_ERR: |
3040 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && | |
3041 | (cmd == ELS_CMD_FDISC) && | |
3042 | ((stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_PNAME) || | |
3043 | (stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_NPORT_ID)) | |
3044 | ) { | |
e8b62011 | 3045 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
d7c255b2 | 3046 | "0122 FDISC Failed (x%x). " |
e8b62011 JS |
3047 | "Fabric Detected Bad WWN\n", |
3048 | stat.un.lsRjtError); | |
92d7f7b0 JS |
3049 | lpfc_vport_set_state(vport, |
3050 | FC_VPORT_FABRIC_REJ_WWN); | |
3051 | } | |
3052 | break; | |
dea3101e JB |
3053 | } |
3054 | break; | |
3055 | ||
3056 | case IOSTAT_INTERMED_RSP: | |
3057 | case IOSTAT_BA_RJT: | |
3058 | break; | |
3059 | ||
3060 | default: | |
3061 | break; | |
3062 | } | |
3063 | ||
488d1469 | 3064 | if (did == FDMI_DID) |
dea3101e | 3065 | retry = 1; |
dea3101e | 3066 | |
695a814e | 3067 | if (((cmd == ELS_CMD_FLOGI) || (cmd == ELS_CMD_FDISC)) && |
76a95d75 | 3068 | (phba->fc_topology != LPFC_TOPOLOGY_LOOP) && |
1b32f6aa | 3069 | !lpfc_error_lost_link(irsp)) { |
98c9ea5c JS |
3070 | /* FLOGI retry policy */ |
3071 | retry = 1; | |
6669f9bb JS |
3072 | /* retry forever */ |
3073 | maxretry = 0; | |
3074 | if (cmdiocb->retry >= 100) | |
3075 | delay = 5000; | |
3076 | else if (cmdiocb->retry >= 32) | |
98c9ea5c JS |
3077 | delay = 1000; |
3078 | } | |
3079 | ||
6669f9bb JS |
3080 | cmdiocb->retry++; |
3081 | if (maxretry && (cmdiocb->retry >= maxretry)) { | |
dea3101e JB |
3082 | phba->fc_stat.elsRetryExceeded++; |
3083 | retry = 0; | |
3084 | } | |
3085 | ||
ed957684 JS |
3086 | if ((vport->load_flag & FC_UNLOADING) != 0) |
3087 | retry = 0; | |
3088 | ||
dea3101e | 3089 | if (retry) { |
38b92ef8 JS |
3090 | if ((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_FDISC)) { |
3091 | /* Stop retrying PLOGI and FDISC if in FCF discovery */ | |
3092 | if (phba->fcf.fcf_flag & FCF_DISCOVERY) { | |
3093 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
3094 | "2849 Stop retry ELS command " | |
3095 | "x%x to remote NPORT x%x, " | |
3096 | "Data: x%x x%x\n", cmd, did, | |
3097 | cmdiocb->retry, delay); | |
3098 | return 0; | |
3099 | } | |
3100 | } | |
dea3101e JB |
3101 | |
3102 | /* Retry ELS command <elsCmd> to remote NPORT <did> */ | |
e8b62011 JS |
3103 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3104 | "0107 Retry ELS command x%x to remote " | |
3105 | "NPORT x%x Data: x%x x%x\n", | |
3106 | cmd, did, cmdiocb->retry, delay); | |
dea3101e | 3107 | |
858c9f6c JS |
3108 | if (((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_ADISC)) && |
3109 | ((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) || | |
3110 | ((irsp->un.ulpWord[4] & 0xff) != IOERR_NO_RESOURCES))) { | |
3111 | /* Don't reset timer for no resources */ | |
3112 | ||
dea3101e | 3113 | /* If discovery / RSCN timer is running, reset it */ |
2e0fef85 | 3114 | if (timer_pending(&vport->fc_disctmo) || |
92d7f7b0 | 3115 | (vport->fc_flag & FC_RSCN_MODE)) |
2e0fef85 | 3116 | lpfc_set_disctmo(vport); |
dea3101e JB |
3117 | } |
3118 | ||
3119 | phba->fc_stat.elsXmitRetry++; | |
58da1ffb | 3120 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && delay) { |
dea3101e JB |
3121 | phba->fc_stat.elsDelayRetry++; |
3122 | ndlp->nlp_retry = cmdiocb->retry; | |
3123 | ||
92d7f7b0 JS |
3124 | /* delay is specified in milliseconds */ |
3125 | mod_timer(&ndlp->nlp_delayfunc, | |
3126 | jiffies + msecs_to_jiffies(delay)); | |
2e0fef85 | 3127 | spin_lock_irq(shost->host_lock); |
dea3101e | 3128 | ndlp->nlp_flag |= NLP_DELAY_TMO; |
2e0fef85 | 3129 | spin_unlock_irq(shost->host_lock); |
dea3101e | 3130 | |
5024ab17 | 3131 | ndlp->nlp_prev_state = ndlp->nlp_state; |
858c9f6c JS |
3132 | if (cmd == ELS_CMD_PRLI) |
3133 | lpfc_nlp_set_state(vport, ndlp, | |
3134 | NLP_STE_REG_LOGIN_ISSUE); | |
3135 | else | |
3136 | lpfc_nlp_set_state(vport, ndlp, | |
3137 | NLP_STE_NPR_NODE); | |
dea3101e JB |
3138 | ndlp->nlp_last_elscmd = cmd; |
3139 | ||
c9f8735b | 3140 | return 1; |
dea3101e JB |
3141 | } |
3142 | switch (cmd) { | |
3143 | case ELS_CMD_FLOGI: | |
2e0fef85 | 3144 | lpfc_issue_els_flogi(vport, ndlp, cmdiocb->retry); |
c9f8735b | 3145 | return 1; |
92d7f7b0 JS |
3146 | case ELS_CMD_FDISC: |
3147 | lpfc_issue_els_fdisc(vport, ndlp, cmdiocb->retry); | |
3148 | return 1; | |
dea3101e | 3149 | case ELS_CMD_PLOGI: |
58da1ffb | 3150 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) { |
488d1469 | 3151 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 3152 | lpfc_nlp_set_state(vport, ndlp, |
de0c5b32 | 3153 | NLP_STE_PLOGI_ISSUE); |
488d1469 | 3154 | } |
2e0fef85 | 3155 | lpfc_issue_els_plogi(vport, did, cmdiocb->retry); |
c9f8735b | 3156 | return 1; |
dea3101e | 3157 | case ELS_CMD_ADISC: |
5024ab17 | 3158 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 JS |
3159 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); |
3160 | lpfc_issue_els_adisc(vport, ndlp, cmdiocb->retry); | |
c9f8735b | 3161 | return 1; |
dea3101e | 3162 | case ELS_CMD_PRLI: |
5024ab17 | 3163 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 JS |
3164 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); |
3165 | lpfc_issue_els_prli(vport, ndlp, cmdiocb->retry); | |
c9f8735b | 3166 | return 1; |
dea3101e | 3167 | case ELS_CMD_LOGO: |
5024ab17 | 3168 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 JS |
3169 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
3170 | lpfc_issue_els_logo(vport, ndlp, cmdiocb->retry); | |
c9f8735b | 3171 | return 1; |
dea3101e JB |
3172 | } |
3173 | } | |
dea3101e | 3174 | /* No retry ELS command <elsCmd> to remote NPORT <did> */ |
98c9ea5c JS |
3175 | if (logerr) { |
3176 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
3177 | "0137 No retry ELS command x%x to remote " | |
3178 | "NPORT x%x: Out of Resources: Error:x%x/%x\n", | |
3179 | cmd, did, irsp->ulpStatus, | |
3180 | irsp->un.ulpWord[4]); | |
3181 | } | |
3182 | else { | |
3183 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
a58cbd52 JS |
3184 | "0108 No retry ELS command x%x to remote " |
3185 | "NPORT x%x Retried:%d Error:x%x/%x\n", | |
3186 | cmd, did, cmdiocb->retry, irsp->ulpStatus, | |
3187 | irsp->un.ulpWord[4]); | |
98c9ea5c | 3188 | } |
c9f8735b | 3189 | return 0; |
dea3101e JB |
3190 | } |
3191 | ||
e59058c4 | 3192 | /** |
3621a710 | 3193 | * lpfc_els_free_data - Free lpfc dma buffer and data structure with an iocb |
e59058c4 JS |
3194 | * @phba: pointer to lpfc hba data structure. |
3195 | * @buf_ptr1: pointer to the lpfc DMA buffer data structure. | |
3196 | * | |
3197 | * This routine releases the lpfc DMA (Direct Memory Access) buffer(s) | |
3198 | * associated with a command IOCB back to the lpfc DMA buffer pool. It first | |
3199 | * checks to see whether there is a lpfc DMA buffer associated with the | |
3200 | * response of the command IOCB. If so, it will be released before releasing | |
3201 | * the lpfc DMA buffer associated with the IOCB itself. | |
3202 | * | |
3203 | * Return code | |
3204 | * 0 - Successfully released lpfc DMA buffer (currently, always return 0) | |
3205 | **/ | |
09372820 | 3206 | static int |
87af33fe JS |
3207 | lpfc_els_free_data(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr1) |
3208 | { | |
3209 | struct lpfc_dmabuf *buf_ptr; | |
3210 | ||
e59058c4 | 3211 | /* Free the response before processing the command. */ |
87af33fe JS |
3212 | if (!list_empty(&buf_ptr1->list)) { |
3213 | list_remove_head(&buf_ptr1->list, buf_ptr, | |
3214 | struct lpfc_dmabuf, | |
3215 | list); | |
3216 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); | |
3217 | kfree(buf_ptr); | |
3218 | } | |
3219 | lpfc_mbuf_free(phba, buf_ptr1->virt, buf_ptr1->phys); | |
3220 | kfree(buf_ptr1); | |
3221 | return 0; | |
3222 | } | |
3223 | ||
e59058c4 | 3224 | /** |
3621a710 | 3225 | * lpfc_els_free_bpl - Free lpfc dma buffer and data structure with bpl |
e59058c4 JS |
3226 | * @phba: pointer to lpfc hba data structure. |
3227 | * @buf_ptr: pointer to the lpfc dma buffer data structure. | |
3228 | * | |
3229 | * This routine releases the lpfc Direct Memory Access (DMA) buffer | |
3230 | * associated with a Buffer Pointer List (BPL) back to the lpfc DMA buffer | |
3231 | * pool. | |
3232 | * | |
3233 | * Return code | |
3234 | * 0 - Successfully released lpfc DMA buffer (currently, always return 0) | |
3235 | **/ | |
09372820 | 3236 | static int |
87af33fe JS |
3237 | lpfc_els_free_bpl(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr) |
3238 | { | |
3239 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); | |
3240 | kfree(buf_ptr); | |
3241 | return 0; | |
3242 | } | |
3243 | ||
e59058c4 | 3244 | /** |
3621a710 | 3245 | * lpfc_els_free_iocb - Free a command iocb and its associated resources |
e59058c4 JS |
3246 | * @phba: pointer to lpfc hba data structure. |
3247 | * @elsiocb: pointer to lpfc els command iocb data structure. | |
3248 | * | |
3249 | * This routine frees a command IOCB and its associated resources. The | |
3250 | * command IOCB data structure contains the reference to various associated | |
3251 | * resources, these fields must be set to NULL if the associated reference | |
3252 | * not present: | |
3253 | * context1 - reference to ndlp | |
3254 | * context2 - reference to cmd | |
3255 | * context2->next - reference to rsp | |
3256 | * context3 - reference to bpl | |
3257 | * | |
3258 | * It first properly decrements the reference count held on ndlp for the | |
3259 | * IOCB completion callback function. If LPFC_DELAY_MEM_FREE flag is not | |
3260 | * set, it invokes the lpfc_els_free_data() routine to release the Direct | |
3261 | * Memory Access (DMA) buffers associated with the IOCB. Otherwise, it | |
3262 | * adds the DMA buffer the @phba data structure for the delayed release. | |
3263 | * If reference to the Buffer Pointer List (BPL) is present, the | |
3264 | * lpfc_els_free_bpl() routine is invoked to release the DMA memory | |
3265 | * associated with BPL. Finally, the lpfc_sli_release_iocbq() routine is | |
3266 | * invoked to release the IOCB data structure back to @phba IOCBQ list. | |
3267 | * | |
3268 | * Return code | |
3269 | * 0 - Success (currently, always return 0) | |
3270 | **/ | |
dea3101e | 3271 | int |
329f9bc7 | 3272 | lpfc_els_free_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *elsiocb) |
dea3101e JB |
3273 | { |
3274 | struct lpfc_dmabuf *buf_ptr, *buf_ptr1; | |
a8adb832 JS |
3275 | struct lpfc_nodelist *ndlp; |
3276 | ||
3277 | ndlp = (struct lpfc_nodelist *)elsiocb->context1; | |
3278 | if (ndlp) { | |
3279 | if (ndlp->nlp_flag & NLP_DEFER_RM) { | |
3280 | lpfc_nlp_put(ndlp); | |
dea3101e | 3281 | |
a8adb832 JS |
3282 | /* If the ndlp is not being used by another discovery |
3283 | * thread, free it. | |
3284 | */ | |
3285 | if (!lpfc_nlp_not_used(ndlp)) { | |
3286 | /* If ndlp is being used by another discovery | |
3287 | * thread, just clear NLP_DEFER_RM | |
3288 | */ | |
3289 | ndlp->nlp_flag &= ~NLP_DEFER_RM; | |
3290 | } | |
3291 | } | |
3292 | else | |
3293 | lpfc_nlp_put(ndlp); | |
329f9bc7 JS |
3294 | elsiocb->context1 = NULL; |
3295 | } | |
dea3101e JB |
3296 | /* context2 = cmd, context2->next = rsp, context3 = bpl */ |
3297 | if (elsiocb->context2) { | |
0ff10d46 JS |
3298 | if (elsiocb->iocb_flag & LPFC_DELAY_MEM_FREE) { |
3299 | /* Firmware could still be in progress of DMAing | |
3300 | * payload, so don't free data buffer till after | |
3301 | * a hbeat. | |
3302 | */ | |
3303 | elsiocb->iocb_flag &= ~LPFC_DELAY_MEM_FREE; | |
3304 | buf_ptr = elsiocb->context2; | |
3305 | elsiocb->context2 = NULL; | |
3306 | if (buf_ptr) { | |
3307 | buf_ptr1 = NULL; | |
3308 | spin_lock_irq(&phba->hbalock); | |
3309 | if (!list_empty(&buf_ptr->list)) { | |
3310 | list_remove_head(&buf_ptr->list, | |
3311 | buf_ptr1, struct lpfc_dmabuf, | |
3312 | list); | |
3313 | INIT_LIST_HEAD(&buf_ptr1->list); | |
3314 | list_add_tail(&buf_ptr1->list, | |
3315 | &phba->elsbuf); | |
3316 | phba->elsbuf_cnt++; | |
3317 | } | |
3318 | INIT_LIST_HEAD(&buf_ptr->list); | |
3319 | list_add_tail(&buf_ptr->list, &phba->elsbuf); | |
3320 | phba->elsbuf_cnt++; | |
3321 | spin_unlock_irq(&phba->hbalock); | |
3322 | } | |
3323 | } else { | |
3324 | buf_ptr1 = (struct lpfc_dmabuf *) elsiocb->context2; | |
3325 | lpfc_els_free_data(phba, buf_ptr1); | |
3326 | } | |
dea3101e JB |
3327 | } |
3328 | ||
3329 | if (elsiocb->context3) { | |
3330 | buf_ptr = (struct lpfc_dmabuf *) elsiocb->context3; | |
87af33fe | 3331 | lpfc_els_free_bpl(phba, buf_ptr); |
dea3101e | 3332 | } |
604a3e30 | 3333 | lpfc_sli_release_iocbq(phba, elsiocb); |
dea3101e JB |
3334 | return 0; |
3335 | } | |
3336 | ||
e59058c4 | 3337 | /** |
3621a710 | 3338 | * lpfc_cmpl_els_logo_acc - Completion callback function to logo acc response |
e59058c4 JS |
3339 | * @phba: pointer to lpfc hba data structure. |
3340 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
3341 | * @rspiocb: pointer to lpfc response iocb data structure. | |
3342 | * | |
3343 | * This routine is the completion callback function to the Logout (LOGO) | |
3344 | * Accept (ACC) Response ELS command. This routine is invoked to indicate | |
3345 | * the completion of the LOGO process. It invokes the lpfc_nlp_not_used() to | |
3346 | * release the ndlp if it has the last reference remaining (reference count | |
3347 | * is 1). If succeeded (meaning ndlp released), it sets the IOCB context1 | |
3348 | * field to NULL to inform the following lpfc_els_free_iocb() routine no | |
3349 | * ndlp reference count needs to be decremented. Otherwise, the ndlp | |
3350 | * reference use-count shall be decremented by the lpfc_els_free_iocb() | |
3351 | * routine. Finally, the lpfc_els_free_iocb() is invoked to release the | |
3352 | * IOCB data structure. | |
3353 | **/ | |
dea3101e | 3354 | static void |
2e0fef85 JS |
3355 | lpfc_cmpl_els_logo_acc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
3356 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 3357 | { |
2e0fef85 JS |
3358 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; |
3359 | struct lpfc_vport *vport = cmdiocb->vport; | |
858c9f6c JS |
3360 | IOCB_t *irsp; |
3361 | ||
3362 | irsp = &rspiocb->iocb; | |
3363 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
3364 | "ACC LOGO cmpl: status:x%x/x%x did:x%x", | |
3365 | irsp->ulpStatus, irsp->un.ulpWord[4], ndlp->nlp_DID); | |
dea3101e | 3366 | /* ACC to LOGO completes to NPort <nlp_DID> */ |
e8b62011 JS |
3367 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3368 | "0109 ACC to LOGO completes to NPort x%x " | |
3369 | "Data: x%x x%x x%x\n", | |
3370 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3371 | ndlp->nlp_rpi); | |
87af33fe JS |
3372 | |
3373 | if (ndlp->nlp_state == NLP_STE_NPR_NODE) { | |
3374 | /* NPort Recovery mode or node is just allocated */ | |
3375 | if (!lpfc_nlp_not_used(ndlp)) { | |
3376 | /* If the ndlp is being used by another discovery | |
3377 | * thread, just unregister the RPI. | |
3378 | */ | |
3379 | lpfc_unreg_rpi(vport, ndlp); | |
fa4066b6 JS |
3380 | } else { |
3381 | /* Indicate the node has already released, should | |
3382 | * not reference to it from within lpfc_els_free_iocb. | |
3383 | */ | |
3384 | cmdiocb->context1 = NULL; | |
87af33fe | 3385 | } |
dea3101e JB |
3386 | } |
3387 | lpfc_els_free_iocb(phba, cmdiocb); | |
3388 | return; | |
3389 | } | |
3390 | ||
e59058c4 | 3391 | /** |
3621a710 | 3392 | * lpfc_mbx_cmpl_dflt_rpi - Completion callbk func for unreg dflt rpi mbox cmd |
e59058c4 JS |
3393 | * @phba: pointer to lpfc hba data structure. |
3394 | * @pmb: pointer to the driver internal queue element for mailbox command. | |
3395 | * | |
3396 | * This routine is the completion callback function for unregister default | |
3397 | * RPI (Remote Port Index) mailbox command to the @phba. It simply releases | |
3398 | * the associated lpfc Direct Memory Access (DMA) buffer back to the pool and | |
3399 | * decrements the ndlp reference count held for this completion callback | |
3400 | * function. After that, it invokes the lpfc_nlp_not_used() to check | |
3401 | * whether there is only one reference left on the ndlp. If so, it will | |
3402 | * perform one more decrement and trigger the release of the ndlp. | |
3403 | **/ | |
858c9f6c JS |
3404 | void |
3405 | lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) | |
3406 | { | |
3407 | struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); | |
3408 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; | |
3409 | ||
3410 | pmb->context1 = NULL; | |
d439d286 JS |
3411 | pmb->context2 = NULL; |
3412 | ||
858c9f6c JS |
3413 | lpfc_mbuf_free(phba, mp->virt, mp->phys); |
3414 | kfree(mp); | |
3415 | mempool_free(pmb, phba->mbox_mem_pool); | |
58da1ffb | 3416 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) { |
a8adb832 | 3417 | lpfc_nlp_put(ndlp); |
a8adb832 JS |
3418 | /* This is the end of the default RPI cleanup logic for this |
3419 | * ndlp. If no other discovery threads are using this ndlp. | |
3420 | * we should free all resources associated with it. | |
3421 | */ | |
3422 | lpfc_nlp_not_used(ndlp); | |
3423 | } | |
3772a991 | 3424 | |
858c9f6c JS |
3425 | return; |
3426 | } | |
3427 | ||
e59058c4 | 3428 | /** |
3621a710 | 3429 | * lpfc_cmpl_els_rsp - Completion callback function for els response iocb cmd |
e59058c4 JS |
3430 | * @phba: pointer to lpfc hba data structure. |
3431 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
3432 | * @rspiocb: pointer to lpfc response iocb data structure. | |
3433 | * | |
3434 | * This routine is the completion callback function for ELS Response IOCB | |
3435 | * command. In normal case, this callback function just properly sets the | |
3436 | * nlp_flag bitmap in the ndlp data structure, if the mbox command reference | |
3437 | * field in the command IOCB is not NULL, the referred mailbox command will | |
3438 | * be send out, and then invokes the lpfc_els_free_iocb() routine to release | |
3439 | * the IOCB. Under error conditions, such as when a LS_RJT is returned or a | |
3440 | * link down event occurred during the discovery, the lpfc_nlp_not_used() | |
3441 | * routine shall be invoked trying to release the ndlp if no other threads | |
3442 | * are currently referring it. | |
3443 | **/ | |
dea3101e | 3444 | static void |
858c9f6c | 3445 | lpfc_cmpl_els_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
329f9bc7 | 3446 | struct lpfc_iocbq *rspiocb) |
dea3101e | 3447 | { |
2e0fef85 JS |
3448 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; |
3449 | struct lpfc_vport *vport = ndlp ? ndlp->vport : NULL; | |
3450 | struct Scsi_Host *shost = vport ? lpfc_shost_from_vport(vport) : NULL; | |
87af33fe JS |
3451 | IOCB_t *irsp; |
3452 | uint8_t *pcmd; | |
dea3101e | 3453 | LPFC_MBOXQ_t *mbox = NULL; |
2e0fef85 | 3454 | struct lpfc_dmabuf *mp = NULL; |
87af33fe | 3455 | uint32_t ls_rjt = 0; |
dea3101e | 3456 | |
33ccf8d1 JS |
3457 | irsp = &rspiocb->iocb; |
3458 | ||
dea3101e JB |
3459 | if (cmdiocb->context_un.mbox) |
3460 | mbox = cmdiocb->context_un.mbox; | |
3461 | ||
fa4066b6 JS |
3462 | /* First determine if this is a LS_RJT cmpl. Note, this callback |
3463 | * function can have cmdiocb->contest1 (ndlp) field set to NULL. | |
3464 | */ | |
87af33fe | 3465 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt); |
58da1ffb JS |
3466 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && |
3467 | (*((uint32_t *) (pcmd)) == ELS_CMD_LS_RJT)) { | |
fa4066b6 | 3468 | /* A LS_RJT associated with Default RPI cleanup has its own |
3ad2f3fb | 3469 | * separate code path. |
87af33fe JS |
3470 | */ |
3471 | if (!(ndlp->nlp_flag & NLP_RM_DFLT_RPI)) | |
3472 | ls_rjt = 1; | |
3473 | } | |
3474 | ||
dea3101e | 3475 | /* Check to see if link went down during discovery */ |
58da1ffb | 3476 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || lpfc_els_chk_latt(vport)) { |
dea3101e | 3477 | if (mbox) { |
14691150 JS |
3478 | mp = (struct lpfc_dmabuf *) mbox->context1; |
3479 | if (mp) { | |
3480 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
3481 | kfree(mp); | |
3482 | } | |
329f9bc7 | 3483 | mempool_free(mbox, phba->mbox_mem_pool); |
dea3101e | 3484 | } |
58da1ffb JS |
3485 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && |
3486 | (ndlp->nlp_flag & NLP_RM_DFLT_RPI)) | |
fa4066b6 | 3487 | if (lpfc_nlp_not_used(ndlp)) { |
98c9ea5c | 3488 | ndlp = NULL; |
fa4066b6 JS |
3489 | /* Indicate the node has already released, |
3490 | * should not reference to it from within | |
3491 | * the routine lpfc_els_free_iocb. | |
3492 | */ | |
3493 | cmdiocb->context1 = NULL; | |
3494 | } | |
dea3101e JB |
3495 | goto out; |
3496 | } | |
3497 | ||
858c9f6c | 3498 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
51ef4c26 | 3499 | "ELS rsp cmpl: status:x%x/x%x did:x%x", |
858c9f6c | 3500 | irsp->ulpStatus, irsp->un.ulpWord[4], |
51ef4c26 | 3501 | cmdiocb->iocb.un.elsreq64.remoteID); |
dea3101e | 3502 | /* ELS response tag <ulpIoTag> completes */ |
e8b62011 JS |
3503 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3504 | "0110 ELS response tag x%x completes " | |
3505 | "Data: x%x x%x x%x x%x x%x x%x x%x\n", | |
3506 | cmdiocb->iocb.ulpIoTag, rspiocb->iocb.ulpStatus, | |
3507 | rspiocb->iocb.un.ulpWord[4], rspiocb->iocb.ulpTimeout, | |
3508 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3509 | ndlp->nlp_rpi); | |
dea3101e JB |
3510 | if (mbox) { |
3511 | if ((rspiocb->iocb.ulpStatus == 0) | |
3512 | && (ndlp->nlp_flag & NLP_ACC_REGLOGIN)) { | |
2e0fef85 | 3513 | lpfc_unreg_rpi(vport, ndlp); |
e47c9093 JS |
3514 | /* Increment reference count to ndlp to hold the |
3515 | * reference to ndlp for the callback function. | |
3516 | */ | |
329f9bc7 | 3517 | mbox->context2 = lpfc_nlp_get(ndlp); |
2e0fef85 | 3518 | mbox->vport = vport; |
858c9f6c JS |
3519 | if (ndlp->nlp_flag & NLP_RM_DFLT_RPI) { |
3520 | mbox->mbox_flag |= LPFC_MBX_IMED_UNREG; | |
3521 | mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi; | |
3522 | } | |
3523 | else { | |
3524 | mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; | |
3525 | ndlp->nlp_prev_state = ndlp->nlp_state; | |
3526 | lpfc_nlp_set_state(vport, ndlp, | |
2e0fef85 | 3527 | NLP_STE_REG_LOGIN_ISSUE); |
858c9f6c | 3528 | } |
0b727fea | 3529 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) |
e47c9093 | 3530 | != MBX_NOT_FINISHED) |
dea3101e | 3531 | goto out; |
e47c9093 JS |
3532 | else |
3533 | /* Decrement the ndlp reference count we | |
3534 | * set for this failed mailbox command. | |
3535 | */ | |
3536 | lpfc_nlp_put(ndlp); | |
98c9ea5c JS |
3537 | |
3538 | /* ELS rsp: Cannot issue reg_login for <NPortid> */ | |
3539 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
3540 | "0138 ELS rsp: Cannot issue reg_login for x%x " | |
3541 | "Data: x%x x%x x%x\n", | |
3542 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3543 | ndlp->nlp_rpi); | |
3544 | ||
fa4066b6 | 3545 | if (lpfc_nlp_not_used(ndlp)) { |
98c9ea5c | 3546 | ndlp = NULL; |
fa4066b6 JS |
3547 | /* Indicate node has already been released, |
3548 | * should not reference to it from within | |
3549 | * the routine lpfc_els_free_iocb. | |
3550 | */ | |
3551 | cmdiocb->context1 = NULL; | |
3552 | } | |
dea3101e | 3553 | } else { |
858c9f6c JS |
3554 | /* Do not drop node for lpfc_els_abort'ed ELS cmds */ |
3555 | if (!lpfc_error_lost_link(irsp) && | |
3556 | ndlp->nlp_flag & NLP_ACC_REGLOGIN) { | |
fa4066b6 | 3557 | if (lpfc_nlp_not_used(ndlp)) { |
98c9ea5c | 3558 | ndlp = NULL; |
fa4066b6 JS |
3559 | /* Indicate node has already been |
3560 | * released, should not reference | |
3561 | * to it from within the routine | |
3562 | * lpfc_els_free_iocb. | |
3563 | */ | |
3564 | cmdiocb->context1 = NULL; | |
3565 | } | |
dea3101e JB |
3566 | } |
3567 | } | |
14691150 JS |
3568 | mp = (struct lpfc_dmabuf *) mbox->context1; |
3569 | if (mp) { | |
3570 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
3571 | kfree(mp); | |
3572 | } | |
3573 | mempool_free(mbox, phba->mbox_mem_pool); | |
dea3101e JB |
3574 | } |
3575 | out: | |
58da1ffb | 3576 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) { |
2e0fef85 | 3577 | spin_lock_irq(shost->host_lock); |
858c9f6c | 3578 | ndlp->nlp_flag &= ~(NLP_ACC_REGLOGIN | NLP_RM_DFLT_RPI); |
2e0fef85 | 3579 | spin_unlock_irq(shost->host_lock); |
87af33fe JS |
3580 | |
3581 | /* If the node is not being used by another discovery thread, | |
3582 | * and we are sending a reject, we are done with it. | |
3583 | * Release driver reference count here and free associated | |
3584 | * resources. | |
3585 | */ | |
3586 | if (ls_rjt) | |
fa4066b6 JS |
3587 | if (lpfc_nlp_not_used(ndlp)) |
3588 | /* Indicate node has already been released, | |
3589 | * should not reference to it from within | |
3590 | * the routine lpfc_els_free_iocb. | |
3591 | */ | |
3592 | cmdiocb->context1 = NULL; | |
dea3101e | 3593 | } |
87af33fe | 3594 | |
dea3101e JB |
3595 | lpfc_els_free_iocb(phba, cmdiocb); |
3596 | return; | |
3597 | } | |
3598 | ||
e59058c4 | 3599 | /** |
3621a710 | 3600 | * lpfc_els_rsp_acc - Prepare and issue an acc response iocb command |
e59058c4 JS |
3601 | * @vport: pointer to a host virtual N_Port data structure. |
3602 | * @flag: the els command code to be accepted. | |
3603 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3604 | * @ndlp: pointer to a node-list data structure. | |
3605 | * @mbox: pointer to the driver internal queue element for mailbox command. | |
3606 | * | |
3607 | * This routine prepares and issues an Accept (ACC) response IOCB | |
3608 | * command. It uses the @flag to properly set up the IOCB field for the | |
3609 | * specific ACC response command to be issued and invokes the | |
3610 | * lpfc_sli_issue_iocb() routine to send out ACC response IOCB. If a | |
3611 | * @mbox pointer is passed in, it will be put into the context_un.mbox | |
3612 | * field of the IOCB for the completion callback function to issue the | |
3613 | * mailbox command to the HBA later when callback is invoked. | |
3614 | * | |
3615 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
3616 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
3617 | * will be stored into the context1 field of the IOCB for the completion | |
3618 | * callback function to the corresponding response ELS IOCB command. | |
3619 | * | |
3620 | * Return code | |
3621 | * 0 - Successfully issued acc response | |
3622 | * 1 - Failed to issue acc response | |
3623 | **/ | |
dea3101e | 3624 | int |
2e0fef85 JS |
3625 | lpfc_els_rsp_acc(struct lpfc_vport *vport, uint32_t flag, |
3626 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp, | |
51ef4c26 | 3627 | LPFC_MBOXQ_t *mbox) |
dea3101e | 3628 | { |
2e0fef85 JS |
3629 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
3630 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
3631 | IOCB_t *icmd; |
3632 | IOCB_t *oldcmd; | |
3633 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
3634 | struct lpfc_sli *psli; |
3635 | uint8_t *pcmd; | |
3636 | uint16_t cmdsize; | |
3637 | int rc; | |
82d9a2a2 | 3638 | ELS_PKT *els_pkt_ptr; |
dea3101e JB |
3639 | |
3640 | psli = &phba->sli; | |
dea3101e JB |
3641 | oldcmd = &oldiocb->iocb; |
3642 | ||
3643 | switch (flag) { | |
3644 | case ELS_CMD_ACC: | |
92d7f7b0 | 3645 | cmdsize = sizeof(uint32_t); |
2e0fef85 JS |
3646 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, |
3647 | ndlp, ndlp->nlp_DID, ELS_CMD_ACC); | |
488d1469 | 3648 | if (!elsiocb) { |
2e0fef85 | 3649 | spin_lock_irq(shost->host_lock); |
5024ab17 | 3650 | ndlp->nlp_flag &= ~NLP_LOGO_ACC; |
2e0fef85 | 3651 | spin_unlock_irq(shost->host_lock); |
c9f8735b | 3652 | return 1; |
dea3101e | 3653 | } |
2e0fef85 | 3654 | |
dea3101e JB |
3655 | icmd = &elsiocb->iocb; |
3656 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
3657 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
3658 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 | 3659 | pcmd += sizeof(uint32_t); |
858c9f6c JS |
3660 | |
3661 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
3662 | "Issue ACC: did:x%x flg:x%x", | |
3663 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
dea3101e JB |
3664 | break; |
3665 | case ELS_CMD_PLOGI: | |
92d7f7b0 | 3666 | cmdsize = (sizeof(struct serv_parm) + sizeof(uint32_t)); |
2e0fef85 JS |
3667 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, |
3668 | ndlp, ndlp->nlp_DID, ELS_CMD_ACC); | |
488d1469 | 3669 | if (!elsiocb) |
c9f8735b | 3670 | return 1; |
488d1469 | 3671 | |
dea3101e JB |
3672 | icmd = &elsiocb->iocb; |
3673 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
3674 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
3675 | ||
3676 | if (mbox) | |
3677 | elsiocb->context_un.mbox = mbox; | |
3678 | ||
3679 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 JS |
3680 | pcmd += sizeof(uint32_t); |
3681 | memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); | |
858c9f6c JS |
3682 | |
3683 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
3684 | "Issue ACC PLOGI: did:x%x flg:x%x", | |
3685 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
dea3101e | 3686 | break; |
82d9a2a2 | 3687 | case ELS_CMD_PRLO: |
92d7f7b0 | 3688 | cmdsize = sizeof(uint32_t) + sizeof(PRLO); |
2e0fef85 | 3689 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, |
82d9a2a2 JS |
3690 | ndlp, ndlp->nlp_DID, ELS_CMD_PRLO); |
3691 | if (!elsiocb) | |
3692 | return 1; | |
3693 | ||
3694 | icmd = &elsiocb->iocb; | |
3695 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
3696 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
3697 | ||
3698 | memcpy(pcmd, ((struct lpfc_dmabuf *) oldiocb->context2)->virt, | |
92d7f7b0 | 3699 | sizeof(uint32_t) + sizeof(PRLO)); |
82d9a2a2 JS |
3700 | *((uint32_t *) (pcmd)) = ELS_CMD_PRLO_ACC; |
3701 | els_pkt_ptr = (ELS_PKT *) pcmd; | |
3702 | els_pkt_ptr->un.prlo.acceptRspCode = PRLO_REQ_EXECUTED; | |
858c9f6c JS |
3703 | |
3704 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
3705 | "Issue ACC PRLO: did:x%x flg:x%x", | |
3706 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
82d9a2a2 | 3707 | break; |
dea3101e | 3708 | default: |
c9f8735b | 3709 | return 1; |
dea3101e | 3710 | } |
dea3101e | 3711 | /* Xmit ELS ACC response tag <ulpIoTag> */ |
e8b62011 JS |
3712 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3713 | "0128 Xmit ELS ACC response tag x%x, XRI: x%x, " | |
3714 | "DID: x%x, nlp_flag: x%x nlp_state: x%x RPI: x%x\n", | |
3715 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
3716 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3717 | ndlp->nlp_rpi); | |
dea3101e | 3718 | if (ndlp->nlp_flag & NLP_LOGO_ACC) { |
2e0fef85 | 3719 | spin_lock_irq(shost->host_lock); |
c9f8735b | 3720 | ndlp->nlp_flag &= ~NLP_LOGO_ACC; |
2e0fef85 | 3721 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
3722 | elsiocb->iocb_cmpl = lpfc_cmpl_els_logo_acc; |
3723 | } else { | |
858c9f6c | 3724 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
dea3101e JB |
3725 | } |
3726 | ||
3727 | phba->fc_stat.elsXmitACC++; | |
3772a991 | 3728 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
dea3101e JB |
3729 | if (rc == IOCB_ERROR) { |
3730 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 3731 | return 1; |
dea3101e | 3732 | } |
c9f8735b | 3733 | return 0; |
dea3101e JB |
3734 | } |
3735 | ||
e59058c4 | 3736 | /** |
3621a710 | 3737 | * lpfc_els_rsp_reject - Propare and issue a rjt response iocb command |
e59058c4 JS |
3738 | * @vport: pointer to a virtual N_Port data structure. |
3739 | * @rejectError: | |
3740 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3741 | * @ndlp: pointer to a node-list data structure. | |
3742 | * @mbox: pointer to the driver internal queue element for mailbox command. | |
3743 | * | |
3744 | * This routine prepares and issue an Reject (RJT) response IOCB | |
3745 | * command. If a @mbox pointer is passed in, it will be put into the | |
3746 | * context_un.mbox field of the IOCB for the completion callback function | |
3747 | * to issue to the HBA later. | |
3748 | * | |
3749 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
3750 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
3751 | * will be stored into the context1 field of the IOCB for the completion | |
3752 | * callback function to the reject response ELS IOCB command. | |
3753 | * | |
3754 | * Return code | |
3755 | * 0 - Successfully issued reject response | |
3756 | * 1 - Failed to issue reject response | |
3757 | **/ | |
dea3101e | 3758 | int |
2e0fef85 | 3759 | lpfc_els_rsp_reject(struct lpfc_vport *vport, uint32_t rejectError, |
858c9f6c JS |
3760 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp, |
3761 | LPFC_MBOXQ_t *mbox) | |
dea3101e | 3762 | { |
2e0fef85 | 3763 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
3764 | IOCB_t *icmd; |
3765 | IOCB_t *oldcmd; | |
3766 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
3767 | struct lpfc_sli *psli; |
3768 | uint8_t *pcmd; | |
3769 | uint16_t cmdsize; | |
3770 | int rc; | |
3771 | ||
3772 | psli = &phba->sli; | |
92d7f7b0 | 3773 | cmdsize = 2 * sizeof(uint32_t); |
2e0fef85 JS |
3774 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
3775 | ndlp->nlp_DID, ELS_CMD_LS_RJT); | |
488d1469 | 3776 | if (!elsiocb) |
c9f8735b | 3777 | return 1; |
dea3101e JB |
3778 | |
3779 | icmd = &elsiocb->iocb; | |
3780 | oldcmd = &oldiocb->iocb; | |
3781 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
3782 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
3783 | ||
3784 | *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT; | |
92d7f7b0 | 3785 | pcmd += sizeof(uint32_t); |
dea3101e JB |
3786 | *((uint32_t *) (pcmd)) = rejectError; |
3787 | ||
51ef4c26 | 3788 | if (mbox) |
858c9f6c | 3789 | elsiocb->context_un.mbox = mbox; |
858c9f6c | 3790 | |
dea3101e | 3791 | /* Xmit ELS RJT <err> response tag <ulpIoTag> */ |
e8b62011 JS |
3792 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3793 | "0129 Xmit ELS RJT x%x response tag x%x " | |
3794 | "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, " | |
3795 | "rpi x%x\n", | |
3796 | rejectError, elsiocb->iotag, | |
3797 | elsiocb->iocb.ulpContext, ndlp->nlp_DID, | |
3798 | ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi); | |
858c9f6c JS |
3799 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
3800 | "Issue LS_RJT: did:x%x flg:x%x err:x%x", | |
3801 | ndlp->nlp_DID, ndlp->nlp_flag, rejectError); | |
3802 | ||
dea3101e | 3803 | phba->fc_stat.elsXmitLSRJT++; |
858c9f6c | 3804 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
3772a991 | 3805 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
51ef4c26 | 3806 | |
dea3101e JB |
3807 | if (rc == IOCB_ERROR) { |
3808 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 3809 | return 1; |
dea3101e | 3810 | } |
c9f8735b | 3811 | return 0; |
dea3101e JB |
3812 | } |
3813 | ||
e59058c4 | 3814 | /** |
3621a710 | 3815 | * lpfc_els_rsp_adisc_acc - Prepare and issue acc response to adisc iocb cmd |
e59058c4 JS |
3816 | * @vport: pointer to a virtual N_Port data structure. |
3817 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3818 | * @ndlp: pointer to a node-list data structure. | |
3819 | * | |
3820 | * This routine prepares and issues an Accept (ACC) response to Address | |
3821 | * Discover (ADISC) ELS command. It simply prepares the payload of the IOCB | |
3822 | * and invokes the lpfc_sli_issue_iocb() routine to send out the command. | |
3823 | * | |
3824 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
3825 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
3826 | * will be stored into the context1 field of the IOCB for the completion | |
3827 | * callback function to the ADISC Accept response ELS IOCB command. | |
3828 | * | |
3829 | * Return code | |
3830 | * 0 - Successfully issued acc adisc response | |
3831 | * 1 - Failed to issue adisc acc response | |
3832 | **/ | |
dea3101e | 3833 | int |
2e0fef85 JS |
3834 | lpfc_els_rsp_adisc_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb, |
3835 | struct lpfc_nodelist *ndlp) | |
dea3101e | 3836 | { |
2e0fef85 | 3837 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 3838 | ADISC *ap; |
2e0fef85 | 3839 | IOCB_t *icmd, *oldcmd; |
dea3101e | 3840 | struct lpfc_iocbq *elsiocb; |
dea3101e JB |
3841 | uint8_t *pcmd; |
3842 | uint16_t cmdsize; | |
3843 | int rc; | |
3844 | ||
92d7f7b0 | 3845 | cmdsize = sizeof(uint32_t) + sizeof(ADISC); |
2e0fef85 JS |
3846 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
3847 | ndlp->nlp_DID, ELS_CMD_ACC); | |
488d1469 | 3848 | if (!elsiocb) |
c9f8735b | 3849 | return 1; |
dea3101e | 3850 | |
5b8bd0c9 JS |
3851 | icmd = &elsiocb->iocb; |
3852 | oldcmd = &oldiocb->iocb; | |
3853 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
3854 | ||
dea3101e | 3855 | /* Xmit ADISC ACC response tag <ulpIoTag> */ |
e8b62011 JS |
3856 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3857 | "0130 Xmit ADISC ACC response iotag x%x xri: " | |
3858 | "x%x, did x%x, nlp_flag x%x, nlp_state x%x rpi x%x\n", | |
3859 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
3860 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3861 | ndlp->nlp_rpi); | |
dea3101e JB |
3862 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
3863 | ||
3864 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 | 3865 | pcmd += sizeof(uint32_t); |
dea3101e JB |
3866 | |
3867 | ap = (ADISC *) (pcmd); | |
3868 | ap->hardAL_PA = phba->fc_pref_ALPA; | |
92d7f7b0 JS |
3869 | memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name)); |
3870 | memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
2e0fef85 | 3871 | ap->DID = be32_to_cpu(vport->fc_myDID); |
dea3101e | 3872 | |
858c9f6c JS |
3873 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
3874 | "Issue ACC ADISC: did:x%x flg:x%x", | |
3875 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
3876 | ||
dea3101e | 3877 | phba->fc_stat.elsXmitACC++; |
858c9f6c | 3878 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
3772a991 | 3879 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
dea3101e JB |
3880 | if (rc == IOCB_ERROR) { |
3881 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 3882 | return 1; |
dea3101e | 3883 | } |
c9f8735b | 3884 | return 0; |
dea3101e JB |
3885 | } |
3886 | ||
e59058c4 | 3887 | /** |
3621a710 | 3888 | * lpfc_els_rsp_prli_acc - Prepare and issue acc response to prli iocb cmd |
e59058c4 JS |
3889 | * @vport: pointer to a virtual N_Port data structure. |
3890 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3891 | * @ndlp: pointer to a node-list data structure. | |
3892 | * | |
3893 | * This routine prepares and issues an Accept (ACC) response to Process | |
3894 | * Login (PRLI) ELS command. It simply prepares the payload of the IOCB | |
3895 | * and invokes the lpfc_sli_issue_iocb() routine to send out the command. | |
3896 | * | |
3897 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
3898 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
3899 | * will be stored into the context1 field of the IOCB for the completion | |
3900 | * callback function to the PRLI Accept response ELS IOCB command. | |
3901 | * | |
3902 | * Return code | |
3903 | * 0 - Successfully issued acc prli response | |
3904 | * 1 - Failed to issue acc prli response | |
3905 | **/ | |
dea3101e | 3906 | int |
2e0fef85 | 3907 | lpfc_els_rsp_prli_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb, |
5b8bd0c9 | 3908 | struct lpfc_nodelist *ndlp) |
dea3101e | 3909 | { |
2e0fef85 | 3910 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
3911 | PRLI *npr; |
3912 | lpfc_vpd_t *vpd; | |
3913 | IOCB_t *icmd; | |
3914 | IOCB_t *oldcmd; | |
3915 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
3916 | struct lpfc_sli *psli; |
3917 | uint8_t *pcmd; | |
3918 | uint16_t cmdsize; | |
3919 | int rc; | |
3920 | ||
3921 | psli = &phba->sli; | |
dea3101e | 3922 | |
92d7f7b0 | 3923 | cmdsize = sizeof(uint32_t) + sizeof(PRLI); |
2e0fef85 | 3924 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
92d7f7b0 | 3925 | ndlp->nlp_DID, (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK))); |
c9f8735b JW |
3926 | if (!elsiocb) |
3927 | return 1; | |
dea3101e | 3928 | |
5b8bd0c9 JS |
3929 | icmd = &elsiocb->iocb; |
3930 | oldcmd = &oldiocb->iocb; | |
3931 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
dea3101e | 3932 | /* Xmit PRLI ACC response tag <ulpIoTag> */ |
e8b62011 JS |
3933 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3934 | "0131 Xmit PRLI ACC response tag x%x xri x%x, " | |
3935 | "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n", | |
3936 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
3937 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3938 | ndlp->nlp_rpi); | |
dea3101e JB |
3939 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
3940 | ||
3941 | *((uint32_t *) (pcmd)) = (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK)); | |
92d7f7b0 | 3942 | pcmd += sizeof(uint32_t); |
dea3101e JB |
3943 | |
3944 | /* For PRLI, remainder of payload is PRLI parameter page */ | |
92d7f7b0 | 3945 | memset(pcmd, 0, sizeof(PRLI)); |
dea3101e JB |
3946 | |
3947 | npr = (PRLI *) pcmd; | |
3948 | vpd = &phba->vpd; | |
3949 | /* | |
0d2b6b83 JS |
3950 | * If the remote port is a target and our firmware version is 3.20 or |
3951 | * later, set the following bits for FC-TAPE support. | |
dea3101e | 3952 | */ |
0d2b6b83 JS |
3953 | if ((ndlp->nlp_type & NLP_FCP_TARGET) && |
3954 | (vpd->rev.feaLevelHigh >= 0x02)) { | |
dea3101e JB |
3955 | npr->ConfmComplAllowed = 1; |
3956 | npr->Retry = 1; | |
3957 | npr->TaskRetryIdReq = 1; | |
3958 | } | |
3959 | ||
3960 | npr->acceptRspCode = PRLI_REQ_EXECUTED; | |
3961 | npr->estabImagePair = 1; | |
3962 | npr->readXferRdyDis = 1; | |
3963 | npr->ConfmComplAllowed = 1; | |
3964 | ||
3965 | npr->prliType = PRLI_FCP_TYPE; | |
3966 | npr->initiatorFunc = 1; | |
3967 | ||
858c9f6c JS |
3968 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
3969 | "Issue ACC PRLI: did:x%x flg:x%x", | |
3970 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
3971 | ||
dea3101e | 3972 | phba->fc_stat.elsXmitACC++; |
858c9f6c | 3973 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
dea3101e | 3974 | |
3772a991 | 3975 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
dea3101e JB |
3976 | if (rc == IOCB_ERROR) { |
3977 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 3978 | return 1; |
dea3101e | 3979 | } |
c9f8735b | 3980 | return 0; |
dea3101e JB |
3981 | } |
3982 | ||
e59058c4 | 3983 | /** |
3621a710 | 3984 | * lpfc_els_rsp_rnid_acc - Issue rnid acc response iocb command |
e59058c4 JS |
3985 | * @vport: pointer to a virtual N_Port data structure. |
3986 | * @format: rnid command format. | |
3987 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3988 | * @ndlp: pointer to a node-list data structure. | |
3989 | * | |
3990 | * This routine issues a Request Node Identification Data (RNID) Accept | |
3991 | * (ACC) response. It constructs the RNID ACC response command according to | |
3992 | * the proper @format and then calls the lpfc_sli_issue_iocb() routine to | |
3993 | * issue the response. Note that this command does not need to hold the ndlp | |
3994 | * reference count for the callback. So, the ndlp reference count taken by | |
3995 | * the lpfc_prep_els_iocb() routine is put back and the context1 field of | |
3996 | * IOCB is set to NULL to indicate to the lpfc_els_free_iocb() routine that | |
3997 | * there is no ndlp reference available. | |
3998 | * | |
3999 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
4000 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
4001 | * will be stored into the context1 field of the IOCB for the completion | |
4002 | * callback function. However, for the RNID Accept Response ELS command, | |
4003 | * this is undone later by this routine after the IOCB is allocated. | |
4004 | * | |
4005 | * Return code | |
4006 | * 0 - Successfully issued acc rnid response | |
4007 | * 1 - Failed to issue acc rnid response | |
4008 | **/ | |
dea3101e | 4009 | static int |
2e0fef85 | 4010 | lpfc_els_rsp_rnid_acc(struct lpfc_vport *vport, uint8_t format, |
329f9bc7 | 4011 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) |
dea3101e | 4012 | { |
2e0fef85 | 4013 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 4014 | RNID *rn; |
2e0fef85 | 4015 | IOCB_t *icmd, *oldcmd; |
dea3101e | 4016 | struct lpfc_iocbq *elsiocb; |
dea3101e JB |
4017 | struct lpfc_sli *psli; |
4018 | uint8_t *pcmd; | |
4019 | uint16_t cmdsize; | |
4020 | int rc; | |
4021 | ||
4022 | psli = &phba->sli; | |
92d7f7b0 JS |
4023 | cmdsize = sizeof(uint32_t) + sizeof(uint32_t) |
4024 | + (2 * sizeof(struct lpfc_name)); | |
dea3101e | 4025 | if (format) |
92d7f7b0 | 4026 | cmdsize += sizeof(RNID_TOP_DISC); |
dea3101e | 4027 | |
2e0fef85 JS |
4028 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
4029 | ndlp->nlp_DID, ELS_CMD_ACC); | |
488d1469 | 4030 | if (!elsiocb) |
c9f8735b | 4031 | return 1; |
dea3101e | 4032 | |
5b8bd0c9 JS |
4033 | icmd = &elsiocb->iocb; |
4034 | oldcmd = &oldiocb->iocb; | |
4035 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
dea3101e | 4036 | /* Xmit RNID ACC response tag <ulpIoTag> */ |
e8b62011 JS |
4037 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
4038 | "0132 Xmit RNID ACC response tag x%x xri x%x\n", | |
4039 | elsiocb->iotag, elsiocb->iocb.ulpContext); | |
dea3101e | 4040 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
dea3101e | 4041 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; |
92d7f7b0 | 4042 | pcmd += sizeof(uint32_t); |
dea3101e | 4043 | |
92d7f7b0 | 4044 | memset(pcmd, 0, sizeof(RNID)); |
dea3101e JB |
4045 | rn = (RNID *) (pcmd); |
4046 | rn->Format = format; | |
92d7f7b0 JS |
4047 | rn->CommonLen = (2 * sizeof(struct lpfc_name)); |
4048 | memcpy(&rn->portName, &vport->fc_portname, sizeof(struct lpfc_name)); | |
4049 | memcpy(&rn->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
dea3101e JB |
4050 | switch (format) { |
4051 | case 0: | |
4052 | rn->SpecificLen = 0; | |
4053 | break; | |
4054 | case RNID_TOPOLOGY_DISC: | |
92d7f7b0 | 4055 | rn->SpecificLen = sizeof(RNID_TOP_DISC); |
dea3101e | 4056 | memcpy(&rn->un.topologyDisc.portName, |
92d7f7b0 | 4057 | &vport->fc_portname, sizeof(struct lpfc_name)); |
dea3101e JB |
4058 | rn->un.topologyDisc.unitType = RNID_HBA; |
4059 | rn->un.topologyDisc.physPort = 0; | |
4060 | rn->un.topologyDisc.attachedNodes = 0; | |
4061 | break; | |
4062 | default: | |
4063 | rn->CommonLen = 0; | |
4064 | rn->SpecificLen = 0; | |
4065 | break; | |
4066 | } | |
4067 | ||
858c9f6c JS |
4068 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
4069 | "Issue ACC RNID: did:x%x flg:x%x", | |
4070 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
4071 | ||
dea3101e | 4072 | phba->fc_stat.elsXmitACC++; |
858c9f6c | 4073 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
329f9bc7 | 4074 | lpfc_nlp_put(ndlp); |
dea3101e JB |
4075 | elsiocb->context1 = NULL; /* Don't need ndlp for cmpl, |
4076 | * it could be freed */ | |
4077 | ||
3772a991 | 4078 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
dea3101e JB |
4079 | if (rc == IOCB_ERROR) { |
4080 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 4081 | return 1; |
dea3101e | 4082 | } |
c9f8735b | 4083 | return 0; |
dea3101e JB |
4084 | } |
4085 | ||
19ca7609 JS |
4086 | /** |
4087 | * lpfc_els_clear_rrq - Clear the rq that this rrq describes. | |
4088 | * @vport: pointer to a virtual N_Port data structure. | |
4089 | * @iocb: pointer to the lpfc command iocb data structure. | |
4090 | * @ndlp: pointer to a node-list data structure. | |
4091 | * | |
4092 | * Return | |
4093 | **/ | |
4094 | static void | |
4095 | lpfc_els_clear_rrq(struct lpfc_vport *vport, | |
4096 | struct lpfc_iocbq *iocb, struct lpfc_nodelist *ndlp) | |
4097 | { | |
4098 | struct lpfc_hba *phba = vport->phba; | |
4099 | uint8_t *pcmd; | |
4100 | struct RRQ *rrq; | |
4101 | uint16_t rxid; | |
1151e3ec | 4102 | uint16_t xri; |
19ca7609 JS |
4103 | struct lpfc_node_rrq *prrq; |
4104 | ||
4105 | ||
4106 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) iocb->context2)->virt); | |
4107 | pcmd += sizeof(uint32_t); | |
4108 | rrq = (struct RRQ *)pcmd; | |
1151e3ec JS |
4109 | rrq->rrq_exchg = be32_to_cpu(rrq->rrq_exchg); |
4110 | rxid = be16_to_cpu(bf_get(rrq_rxid, rrq)); | |
19ca7609 JS |
4111 | |
4112 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
4113 | "2883 Clear RRQ for SID:x%x OXID:x%x RXID:x%x" | |
4114 | " x%x x%x\n", | |
1151e3ec JS |
4115 | be32_to_cpu(bf_get(rrq_did, rrq)), |
4116 | be16_to_cpu(bf_get(rrq_oxid, rrq)), | |
19ca7609 JS |
4117 | rxid, |
4118 | iocb->iotag, iocb->iocb.ulpContext); | |
4119 | ||
4120 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
4121 | "Clear RRQ: did:x%x flg:x%x exchg:x%.08x", | |
4122 | ndlp->nlp_DID, ndlp->nlp_flag, rrq->rrq_exchg); | |
1151e3ec JS |
4123 | if (vport->fc_myDID == be32_to_cpu(bf_get(rrq_did, rrq))) |
4124 | xri = be16_to_cpu(bf_get(rrq_oxid, rrq)); | |
4125 | else | |
4126 | xri = rxid; | |
4127 | prrq = lpfc_get_active_rrq(vport, xri, ndlp->nlp_DID); | |
19ca7609 | 4128 | if (prrq) |
1151e3ec | 4129 | lpfc_clr_rrq_active(phba, xri, prrq); |
19ca7609 JS |
4130 | return; |
4131 | } | |
4132 | ||
12265f68 JS |
4133 | /** |
4134 | * lpfc_els_rsp_echo_acc - Issue echo acc response | |
4135 | * @vport: pointer to a virtual N_Port data structure. | |
4136 | * @data: pointer to echo data to return in the accept. | |
4137 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
4138 | * @ndlp: pointer to a node-list data structure. | |
4139 | * | |
4140 | * Return code | |
4141 | * 0 - Successfully issued acc echo response | |
4142 | * 1 - Failed to issue acc echo response | |
4143 | **/ | |
4144 | static int | |
4145 | lpfc_els_rsp_echo_acc(struct lpfc_vport *vport, uint8_t *data, | |
4146 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) | |
4147 | { | |
4148 | struct lpfc_hba *phba = vport->phba; | |
4149 | struct lpfc_iocbq *elsiocb; | |
4150 | struct lpfc_sli *psli; | |
4151 | uint8_t *pcmd; | |
4152 | uint16_t cmdsize; | |
4153 | int rc; | |
4154 | ||
4155 | psli = &phba->sli; | |
4156 | cmdsize = oldiocb->iocb.unsli3.rcvsli3.acc_len; | |
4157 | ||
4158 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, | |
4159 | ndlp->nlp_DID, ELS_CMD_ACC); | |
4160 | if (!elsiocb) | |
4161 | return 1; | |
4162 | ||
4163 | elsiocb->iocb.ulpContext = oldiocb->iocb.ulpContext; /* Xri */ | |
4164 | /* Xmit ECHO ACC response tag <ulpIoTag> */ | |
4165 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
4166 | "2876 Xmit ECHO ACC response tag x%x xri x%x\n", | |
4167 | elsiocb->iotag, elsiocb->iocb.ulpContext); | |
4168 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
4169 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
4170 | pcmd += sizeof(uint32_t); | |
4171 | memcpy(pcmd, data, cmdsize - sizeof(uint32_t)); | |
4172 | ||
4173 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
4174 | "Issue ACC ECHO: did:x%x flg:x%x", | |
4175 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
4176 | ||
4177 | phba->fc_stat.elsXmitACC++; | |
4178 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; | |
4179 | lpfc_nlp_put(ndlp); | |
4180 | elsiocb->context1 = NULL; /* Don't need ndlp for cmpl, | |
4181 | * it could be freed */ | |
4182 | ||
4183 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); | |
4184 | if (rc == IOCB_ERROR) { | |
4185 | lpfc_els_free_iocb(phba, elsiocb); | |
4186 | return 1; | |
4187 | } | |
4188 | return 0; | |
4189 | } | |
4190 | ||
e59058c4 | 4191 | /** |
3621a710 | 4192 | * lpfc_els_disc_adisc - Issue remaining adisc iocbs to npr nodes of a vport |
e59058c4 JS |
4193 | * @vport: pointer to a host virtual N_Port data structure. |
4194 | * | |
4195 | * This routine issues Address Discover (ADISC) ELS commands to those | |
4196 | * N_Ports which are in node port recovery state and ADISC has not been issued | |
4197 | * for the @vport. Each time an ELS ADISC IOCB is issued by invoking the | |
4198 | * lpfc_issue_els_adisc() routine, the per @vport number of discover count | |
4199 | * (num_disc_nodes) shall be incremented. If the num_disc_nodes reaches a | |
4200 | * pre-configured threshold (cfg_discovery_threads), the @vport fc_flag will | |
4201 | * be marked with FC_NLP_MORE bit and the process of issuing remaining ADISC | |
4202 | * IOCBs quit for later pick up. On the other hand, after walking through | |
4203 | * all the ndlps with the @vport and there is none ADISC IOCB issued, the | |
4204 | * @vport fc_flag shall be cleared with FC_NLP_MORE bit indicating there is | |
4205 | * no more ADISC need to be sent. | |
4206 | * | |
4207 | * Return code | |
4208 | * The number of N_Ports with adisc issued. | |
4209 | **/ | |
dea3101e | 4210 | int |
2e0fef85 | 4211 | lpfc_els_disc_adisc(struct lpfc_vport *vport) |
dea3101e | 4212 | { |
2e0fef85 | 4213 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
dea3101e | 4214 | struct lpfc_nodelist *ndlp, *next_ndlp; |
2e0fef85 | 4215 | int sentadisc = 0; |
dea3101e | 4216 | |
685f0bf7 | 4217 | /* go thru NPR nodes and issue any remaining ELS ADISCs */ |
2e0fef85 | 4218 | list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { |
e47c9093 JS |
4219 | if (!NLP_CHK_NODE_ACT(ndlp)) |
4220 | continue; | |
685f0bf7 JS |
4221 | if (ndlp->nlp_state == NLP_STE_NPR_NODE && |
4222 | (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 && | |
4223 | (ndlp->nlp_flag & NLP_NPR_ADISC) != 0) { | |
2e0fef85 | 4224 | spin_lock_irq(shost->host_lock); |
685f0bf7 | 4225 | ndlp->nlp_flag &= ~NLP_NPR_ADISC; |
2e0fef85 | 4226 | spin_unlock_irq(shost->host_lock); |
685f0bf7 | 4227 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 JS |
4228 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); |
4229 | lpfc_issue_els_adisc(vport, ndlp, 0); | |
685f0bf7 | 4230 | sentadisc++; |
2e0fef85 JS |
4231 | vport->num_disc_nodes++; |
4232 | if (vport->num_disc_nodes >= | |
3de2a653 | 4233 | vport->cfg_discovery_threads) { |
2e0fef85 JS |
4234 | spin_lock_irq(shost->host_lock); |
4235 | vport->fc_flag |= FC_NLP_MORE; | |
4236 | spin_unlock_irq(shost->host_lock); | |
685f0bf7 | 4237 | break; |
dea3101e JB |
4238 | } |
4239 | } | |
4240 | } | |
4241 | if (sentadisc == 0) { | |
2e0fef85 JS |
4242 | spin_lock_irq(shost->host_lock); |
4243 | vport->fc_flag &= ~FC_NLP_MORE; | |
4244 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 4245 | } |
2fe165b6 | 4246 | return sentadisc; |
dea3101e JB |
4247 | } |
4248 | ||
e59058c4 | 4249 | /** |
3621a710 | 4250 | * lpfc_els_disc_plogi - Issue plogi for all npr nodes of a vport before adisc |
e59058c4 JS |
4251 | * @vport: pointer to a host virtual N_Port data structure. |
4252 | * | |
4253 | * This routine issues Port Login (PLOGI) ELS commands to all the N_Ports | |
4254 | * which are in node port recovery state, with a @vport. Each time an ELS | |
4255 | * ADISC PLOGI IOCB is issued by invoking the lpfc_issue_els_plogi() routine, | |
4256 | * the per @vport number of discover count (num_disc_nodes) shall be | |
4257 | * incremented. If the num_disc_nodes reaches a pre-configured threshold | |
4258 | * (cfg_discovery_threads), the @vport fc_flag will be marked with FC_NLP_MORE | |
4259 | * bit set and quit the process of issuing remaining ADISC PLOGIN IOCBs for | |
4260 | * later pick up. On the other hand, after walking through all the ndlps with | |
4261 | * the @vport and there is none ADISC PLOGI IOCB issued, the @vport fc_flag | |
4262 | * shall be cleared with the FC_NLP_MORE bit indicating there is no more ADISC | |
4263 | * PLOGI need to be sent. | |
4264 | * | |
4265 | * Return code | |
4266 | * The number of N_Ports with plogi issued. | |
4267 | **/ | |
dea3101e | 4268 | int |
2e0fef85 | 4269 | lpfc_els_disc_plogi(struct lpfc_vport *vport) |
dea3101e | 4270 | { |
2e0fef85 | 4271 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
dea3101e | 4272 | struct lpfc_nodelist *ndlp, *next_ndlp; |
2e0fef85 | 4273 | int sentplogi = 0; |
dea3101e | 4274 | |
2e0fef85 JS |
4275 | /* go thru NPR nodes and issue any remaining ELS PLOGIs */ |
4276 | list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { | |
e47c9093 JS |
4277 | if (!NLP_CHK_NODE_ACT(ndlp)) |
4278 | continue; | |
685f0bf7 JS |
4279 | if (ndlp->nlp_state == NLP_STE_NPR_NODE && |
4280 | (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 && | |
4281 | (ndlp->nlp_flag & NLP_DELAY_TMO) == 0 && | |
4282 | (ndlp->nlp_flag & NLP_NPR_ADISC) == 0) { | |
4283 | ndlp->nlp_prev_state = ndlp->nlp_state; | |
2e0fef85 JS |
4284 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); |
4285 | lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); | |
685f0bf7 | 4286 | sentplogi++; |
2e0fef85 JS |
4287 | vport->num_disc_nodes++; |
4288 | if (vport->num_disc_nodes >= | |
3de2a653 | 4289 | vport->cfg_discovery_threads) { |
2e0fef85 JS |
4290 | spin_lock_irq(shost->host_lock); |
4291 | vport->fc_flag |= FC_NLP_MORE; | |
4292 | spin_unlock_irq(shost->host_lock); | |
685f0bf7 | 4293 | break; |
dea3101e JB |
4294 | } |
4295 | } | |
4296 | } | |
87af33fe JS |
4297 | if (sentplogi) { |
4298 | lpfc_set_disctmo(vport); | |
4299 | } | |
4300 | else { | |
2e0fef85 JS |
4301 | spin_lock_irq(shost->host_lock); |
4302 | vport->fc_flag &= ~FC_NLP_MORE; | |
4303 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 4304 | } |
2fe165b6 | 4305 | return sentplogi; |
dea3101e JB |
4306 | } |
4307 | ||
e59058c4 | 4308 | /** |
3621a710 | 4309 | * lpfc_els_flush_rscn - Clean up any rscn activities with a vport |
e59058c4 JS |
4310 | * @vport: pointer to a host virtual N_Port data structure. |
4311 | * | |
4312 | * This routine cleans up any Registration State Change Notification | |
4313 | * (RSCN) activity with a @vport. Note that the fc_rscn_flush flag of the | |
4314 | * @vport together with the host_lock is used to prevent multiple thread | |
4315 | * trying to access the RSCN array on a same @vport at the same time. | |
4316 | **/ | |
92d7f7b0 | 4317 | void |
2e0fef85 | 4318 | lpfc_els_flush_rscn(struct lpfc_vport *vport) |
dea3101e | 4319 | { |
2e0fef85 JS |
4320 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
4321 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
4322 | int i; |
4323 | ||
7f5f3d0d JS |
4324 | spin_lock_irq(shost->host_lock); |
4325 | if (vport->fc_rscn_flush) { | |
4326 | /* Another thread is walking fc_rscn_id_list on this vport */ | |
4327 | spin_unlock_irq(shost->host_lock); | |
4328 | return; | |
4329 | } | |
4330 | /* Indicate we are walking lpfc_els_flush_rscn on this vport */ | |
4331 | vport->fc_rscn_flush = 1; | |
4332 | spin_unlock_irq(shost->host_lock); | |
4333 | ||
2e0fef85 | 4334 | for (i = 0; i < vport->fc_rscn_id_cnt; i++) { |
92d7f7b0 | 4335 | lpfc_in_buf_free(phba, vport->fc_rscn_id_list[i]); |
2e0fef85 | 4336 | vport->fc_rscn_id_list[i] = NULL; |
dea3101e | 4337 | } |
2e0fef85 JS |
4338 | spin_lock_irq(shost->host_lock); |
4339 | vport->fc_rscn_id_cnt = 0; | |
4340 | vport->fc_flag &= ~(FC_RSCN_MODE | FC_RSCN_DISCOVERY); | |
4341 | spin_unlock_irq(shost->host_lock); | |
4342 | lpfc_can_disctmo(vport); | |
7f5f3d0d JS |
4343 | /* Indicate we are done walking this fc_rscn_id_list */ |
4344 | vport->fc_rscn_flush = 0; | |
dea3101e JB |
4345 | } |
4346 | ||
e59058c4 | 4347 | /** |
3621a710 | 4348 | * lpfc_rscn_payload_check - Check whether there is a pending rscn to a did |
e59058c4 JS |
4349 | * @vport: pointer to a host virtual N_Port data structure. |
4350 | * @did: remote destination port identifier. | |
4351 | * | |
4352 | * This routine checks whether there is any pending Registration State | |
4353 | * Configuration Notification (RSCN) to a @did on @vport. | |
4354 | * | |
4355 | * Return code | |
4356 | * None zero - The @did matched with a pending rscn | |
4357 | * 0 - not able to match @did with a pending rscn | |
4358 | **/ | |
dea3101e | 4359 | int |
2e0fef85 | 4360 | lpfc_rscn_payload_check(struct lpfc_vport *vport, uint32_t did) |
dea3101e JB |
4361 | { |
4362 | D_ID ns_did; | |
4363 | D_ID rscn_did; | |
dea3101e | 4364 | uint32_t *lp; |
92d7f7b0 | 4365 | uint32_t payload_len, i; |
7f5f3d0d | 4366 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
dea3101e JB |
4367 | |
4368 | ns_did.un.word = did; | |
dea3101e JB |
4369 | |
4370 | /* Never match fabric nodes for RSCNs */ | |
4371 | if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) | |
2e0fef85 | 4372 | return 0; |
dea3101e JB |
4373 | |
4374 | /* If we are doing a FULL RSCN rediscovery, match everything */ | |
2e0fef85 | 4375 | if (vport->fc_flag & FC_RSCN_DISCOVERY) |
c9f8735b | 4376 | return did; |
dea3101e | 4377 | |
7f5f3d0d JS |
4378 | spin_lock_irq(shost->host_lock); |
4379 | if (vport->fc_rscn_flush) { | |
4380 | /* Another thread is walking fc_rscn_id_list on this vport */ | |
4381 | spin_unlock_irq(shost->host_lock); | |
4382 | return 0; | |
4383 | } | |
4384 | /* Indicate we are walking fc_rscn_id_list on this vport */ | |
4385 | vport->fc_rscn_flush = 1; | |
4386 | spin_unlock_irq(shost->host_lock); | |
2e0fef85 | 4387 | for (i = 0; i < vport->fc_rscn_id_cnt; i++) { |
92d7f7b0 JS |
4388 | lp = vport->fc_rscn_id_list[i]->virt; |
4389 | payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK); | |
4390 | payload_len -= sizeof(uint32_t); /* take off word 0 */ | |
dea3101e | 4391 | while (payload_len) { |
92d7f7b0 JS |
4392 | rscn_did.un.word = be32_to_cpu(*lp++); |
4393 | payload_len -= sizeof(uint32_t); | |
eaf15d5b JS |
4394 | switch (rscn_did.un.b.resv & RSCN_ADDRESS_FORMAT_MASK) { |
4395 | case RSCN_ADDRESS_FORMAT_PORT: | |
6fb120a7 JS |
4396 | if ((ns_did.un.b.domain == rscn_did.un.b.domain) |
4397 | && (ns_did.un.b.area == rscn_did.un.b.area) | |
4398 | && (ns_did.un.b.id == rscn_did.un.b.id)) | |
7f5f3d0d | 4399 | goto return_did_out; |
dea3101e | 4400 | break; |
eaf15d5b | 4401 | case RSCN_ADDRESS_FORMAT_AREA: |
dea3101e JB |
4402 | if ((ns_did.un.b.domain == rscn_did.un.b.domain) |
4403 | && (ns_did.un.b.area == rscn_did.un.b.area)) | |
7f5f3d0d | 4404 | goto return_did_out; |
dea3101e | 4405 | break; |
eaf15d5b | 4406 | case RSCN_ADDRESS_FORMAT_DOMAIN: |
dea3101e | 4407 | if (ns_did.un.b.domain == rscn_did.un.b.domain) |
7f5f3d0d | 4408 | goto return_did_out; |
dea3101e | 4409 | break; |
eaf15d5b | 4410 | case RSCN_ADDRESS_FORMAT_FABRIC: |
7f5f3d0d | 4411 | goto return_did_out; |
dea3101e JB |
4412 | } |
4413 | } | |
92d7f7b0 | 4414 | } |
7f5f3d0d JS |
4415 | /* Indicate we are done with walking fc_rscn_id_list on this vport */ |
4416 | vport->fc_rscn_flush = 0; | |
92d7f7b0 | 4417 | return 0; |
7f5f3d0d JS |
4418 | return_did_out: |
4419 | /* Indicate we are done with walking fc_rscn_id_list on this vport */ | |
4420 | vport->fc_rscn_flush = 0; | |
4421 | return did; | |
dea3101e JB |
4422 | } |
4423 | ||
e59058c4 | 4424 | /** |
3621a710 | 4425 | * lpfc_rscn_recovery_check - Send recovery event to vport nodes matching rscn |
e59058c4 JS |
4426 | * @vport: pointer to a host virtual N_Port data structure. |
4427 | * | |
4428 | * This routine sends recovery (NLP_EVT_DEVICE_RECOVERY) event to the | |
4429 | * state machine for a @vport's nodes that are with pending RSCN (Registration | |
4430 | * State Change Notification). | |
4431 | * | |
4432 | * Return code | |
4433 | * 0 - Successful (currently alway return 0) | |
4434 | **/ | |
dea3101e | 4435 | static int |
2e0fef85 | 4436 | lpfc_rscn_recovery_check(struct lpfc_vport *vport) |
dea3101e | 4437 | { |
685f0bf7 | 4438 | struct lpfc_nodelist *ndlp = NULL; |
dea3101e | 4439 | |
0d2b6b83 | 4440 | /* Move all affected nodes by pending RSCNs to NPR state. */ |
2e0fef85 | 4441 | list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { |
e47c9093 | 4442 | if (!NLP_CHK_NODE_ACT(ndlp) || |
0d2b6b83 JS |
4443 | (ndlp->nlp_state == NLP_STE_UNUSED_NODE) || |
4444 | !lpfc_rscn_payload_check(vport, ndlp->nlp_DID)) | |
685f0bf7 | 4445 | continue; |
2e0fef85 | 4446 | lpfc_disc_state_machine(vport, ndlp, NULL, |
0d2b6b83 JS |
4447 | NLP_EVT_DEVICE_RECOVERY); |
4448 | lpfc_cancel_retry_delay_tmo(vport, ndlp); | |
dea3101e | 4449 | } |
c9f8735b | 4450 | return 0; |
dea3101e JB |
4451 | } |
4452 | ||
ddcc50f0 | 4453 | /** |
3621a710 | 4454 | * lpfc_send_rscn_event - Send an RSCN event to management application |
ddcc50f0 JS |
4455 | * @vport: pointer to a host virtual N_Port data structure. |
4456 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4457 | * | |
4458 | * lpfc_send_rscn_event sends an RSCN netlink event to management | |
4459 | * applications. | |
4460 | */ | |
4461 | static void | |
4462 | lpfc_send_rscn_event(struct lpfc_vport *vport, | |
4463 | struct lpfc_iocbq *cmdiocb) | |
4464 | { | |
4465 | struct lpfc_dmabuf *pcmd; | |
4466 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
4467 | uint32_t *payload_ptr; | |
4468 | uint32_t payload_len; | |
4469 | struct lpfc_rscn_event_header *rscn_event_data; | |
4470 | ||
4471 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
4472 | payload_ptr = (uint32_t *) pcmd->virt; | |
4473 | payload_len = be32_to_cpu(*payload_ptr & ~ELS_CMD_MASK); | |
4474 | ||
4475 | rscn_event_data = kmalloc(sizeof(struct lpfc_rscn_event_header) + | |
4476 | payload_len, GFP_KERNEL); | |
4477 | if (!rscn_event_data) { | |
4478 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
4479 | "0147 Failed to allocate memory for RSCN event\n"); | |
4480 | return; | |
4481 | } | |
4482 | rscn_event_data->event_type = FC_REG_RSCN_EVENT; | |
4483 | rscn_event_data->payload_length = payload_len; | |
4484 | memcpy(rscn_event_data->rscn_payload, payload_ptr, | |
4485 | payload_len); | |
4486 | ||
4487 | fc_host_post_vendor_event(shost, | |
4488 | fc_get_event_number(), | |
4489 | sizeof(struct lpfc_els_event_header) + payload_len, | |
4490 | (char *)rscn_event_data, | |
4491 | LPFC_NL_VENDOR_ID); | |
4492 | ||
4493 | kfree(rscn_event_data); | |
4494 | } | |
4495 | ||
e59058c4 | 4496 | /** |
3621a710 | 4497 | * lpfc_els_rcv_rscn - Process an unsolicited rscn iocb |
e59058c4 JS |
4498 | * @vport: pointer to a host virtual N_Port data structure. |
4499 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4500 | * @ndlp: pointer to a node-list data structure. | |
4501 | * | |
4502 | * This routine processes an unsolicited RSCN (Registration State Change | |
4503 | * Notification) IOCB. First, the payload of the unsolicited RSCN is walked | |
4504 | * to invoke fc_host_post_event() routine to the FC transport layer. If the | |
4505 | * discover state machine is about to begin discovery, it just accepts the | |
4506 | * RSCN and the discovery process will satisfy the RSCN. If this RSCN only | |
4507 | * contains N_Port IDs for other vports on this HBA, it just accepts the | |
4508 | * RSCN and ignore processing it. If the state machine is in the recovery | |
4509 | * state, the fc_rscn_id_list of this @vport is walked and the | |
4510 | * lpfc_rscn_recovery_check() routine is invoked to send recovery event for | |
4511 | * all nodes that match RSCN payload. Otherwise, the lpfc_els_handle_rscn() | |
4512 | * routine is invoked to handle the RSCN event. | |
4513 | * | |
4514 | * Return code | |
4515 | * 0 - Just sent the acc response | |
4516 | * 1 - Sent the acc response and waited for name server completion | |
4517 | **/ | |
dea3101e | 4518 | static int |
2e0fef85 | 4519 | lpfc_els_rcv_rscn(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
51ef4c26 | 4520 | struct lpfc_nodelist *ndlp) |
dea3101e | 4521 | { |
2e0fef85 JS |
4522 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
4523 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 4524 | struct lpfc_dmabuf *pcmd; |
92d7f7b0 | 4525 | uint32_t *lp, *datap; |
dea3101e | 4526 | IOCB_t *icmd; |
92d7f7b0 | 4527 | uint32_t payload_len, length, nportid, *cmd; |
7f5f3d0d | 4528 | int rscn_cnt; |
92d7f7b0 | 4529 | int rscn_id = 0, hba_id = 0; |
d2873e4c | 4530 | int i; |
dea3101e JB |
4531 | |
4532 | icmd = &cmdiocb->iocb; | |
4533 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
4534 | lp = (uint32_t *) pcmd->virt; | |
4535 | ||
92d7f7b0 JS |
4536 | payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK); |
4537 | payload_len -= sizeof(uint32_t); /* take off word 0 */ | |
dea3101e | 4538 | /* RSCN received */ |
e8b62011 JS |
4539 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
4540 | "0214 RSCN received Data: x%x x%x x%x x%x\n", | |
7f5f3d0d JS |
4541 | vport->fc_flag, payload_len, *lp, |
4542 | vport->fc_rscn_id_cnt); | |
ddcc50f0 JS |
4543 | |
4544 | /* Send an RSCN event to the management application */ | |
4545 | lpfc_send_rscn_event(vport, cmdiocb); | |
4546 | ||
d2873e4c | 4547 | for (i = 0; i < payload_len/sizeof(uint32_t); i++) |
2e0fef85 | 4548 | fc_host_post_event(shost, fc_get_event_number(), |
d2873e4c JS |
4549 | FCH_EVT_RSCN, lp[i]); |
4550 | ||
dea3101e JB |
4551 | /* If we are about to begin discovery, just ACC the RSCN. |
4552 | * Discovery processing will satisfy it. | |
4553 | */ | |
2e0fef85 | 4554 | if (vport->port_state <= LPFC_NS_QRY) { |
858c9f6c JS |
4555 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
4556 | "RCV RSCN ignore: did:x%x/ste:x%x flg:x%x", | |
4557 | ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); | |
4558 | ||
51ef4c26 | 4559 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
c9f8735b | 4560 | return 0; |
dea3101e JB |
4561 | } |
4562 | ||
92d7f7b0 JS |
4563 | /* If this RSCN just contains NPortIDs for other vports on this HBA, |
4564 | * just ACC and ignore it. | |
4565 | */ | |
4566 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && | |
3de2a653 | 4567 | !(vport->cfg_peer_port_login)) { |
92d7f7b0 JS |
4568 | i = payload_len; |
4569 | datap = lp; | |
4570 | while (i > 0) { | |
4571 | nportid = *datap++; | |
4572 | nportid = ((be32_to_cpu(nportid)) & Mask_DID); | |
4573 | i -= sizeof(uint32_t); | |
4574 | rscn_id++; | |
549e55cd JS |
4575 | if (lpfc_find_vport_by_did(phba, nportid)) |
4576 | hba_id++; | |
92d7f7b0 JS |
4577 | } |
4578 | if (rscn_id == hba_id) { | |
4579 | /* ALL NPortIDs in RSCN are on HBA */ | |
e8b62011 | 4580 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
d7c255b2 | 4581 | "0219 Ignore RSCN " |
e8b62011 JS |
4582 | "Data: x%x x%x x%x x%x\n", |
4583 | vport->fc_flag, payload_len, | |
7f5f3d0d | 4584 | *lp, vport->fc_rscn_id_cnt); |
858c9f6c JS |
4585 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
4586 | "RCV RSCN vport: did:x%x/ste:x%x flg:x%x", | |
4587 | ndlp->nlp_DID, vport->port_state, | |
4588 | ndlp->nlp_flag); | |
4589 | ||
92d7f7b0 | 4590 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, |
51ef4c26 | 4591 | ndlp, NULL); |
92d7f7b0 JS |
4592 | return 0; |
4593 | } | |
4594 | } | |
4595 | ||
7f5f3d0d JS |
4596 | spin_lock_irq(shost->host_lock); |
4597 | if (vport->fc_rscn_flush) { | |
4598 | /* Another thread is walking fc_rscn_id_list on this vport */ | |
7f5f3d0d | 4599 | vport->fc_flag |= FC_RSCN_DISCOVERY; |
97957244 | 4600 | spin_unlock_irq(shost->host_lock); |
58da1ffb JS |
4601 | /* Send back ACC */ |
4602 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); | |
7f5f3d0d JS |
4603 | return 0; |
4604 | } | |
4605 | /* Indicate we are walking fc_rscn_id_list on this vport */ | |
4606 | vport->fc_rscn_flush = 1; | |
4607 | spin_unlock_irq(shost->host_lock); | |
af901ca1 | 4608 | /* Get the array count after successfully have the token */ |
7f5f3d0d | 4609 | rscn_cnt = vport->fc_rscn_id_cnt; |
dea3101e JB |
4610 | /* If we are already processing an RSCN, save the received |
4611 | * RSCN payload buffer, cmdiocb->context2 to process later. | |
4612 | */ | |
2e0fef85 | 4613 | if (vport->fc_flag & (FC_RSCN_MODE | FC_NDISC_ACTIVE)) { |
858c9f6c JS |
4614 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
4615 | "RCV RSCN defer: did:x%x/ste:x%x flg:x%x", | |
4616 | ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); | |
4617 | ||
09372820 | 4618 | spin_lock_irq(shost->host_lock); |
92d7f7b0 JS |
4619 | vport->fc_flag |= FC_RSCN_DEFERRED; |
4620 | if ((rscn_cnt < FC_MAX_HOLD_RSCN) && | |
2e0fef85 | 4621 | !(vport->fc_flag & FC_RSCN_DISCOVERY)) { |
2e0fef85 JS |
4622 | vport->fc_flag |= FC_RSCN_MODE; |
4623 | spin_unlock_irq(shost->host_lock); | |
92d7f7b0 JS |
4624 | if (rscn_cnt) { |
4625 | cmd = vport->fc_rscn_id_list[rscn_cnt-1]->virt; | |
4626 | length = be32_to_cpu(*cmd & ~ELS_CMD_MASK); | |
4627 | } | |
4628 | if ((rscn_cnt) && | |
4629 | (payload_len + length <= LPFC_BPL_SIZE)) { | |
4630 | *cmd &= ELS_CMD_MASK; | |
7f5f3d0d | 4631 | *cmd |= cpu_to_be32(payload_len + length); |
92d7f7b0 JS |
4632 | memcpy(((uint8_t *)cmd) + length, lp, |
4633 | payload_len); | |
4634 | } else { | |
4635 | vport->fc_rscn_id_list[rscn_cnt] = pcmd; | |
4636 | vport->fc_rscn_id_cnt++; | |
4637 | /* If we zero, cmdiocb->context2, the calling | |
4638 | * routine will not try to free it. | |
4639 | */ | |
4640 | cmdiocb->context2 = NULL; | |
4641 | } | |
dea3101e | 4642 | /* Deferred RSCN */ |
e8b62011 JS |
4643 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
4644 | "0235 Deferred RSCN " | |
4645 | "Data: x%x x%x x%x\n", | |
4646 | vport->fc_rscn_id_cnt, vport->fc_flag, | |
4647 | vport->port_state); | |
dea3101e | 4648 | } else { |
2e0fef85 JS |
4649 | vport->fc_flag |= FC_RSCN_DISCOVERY; |
4650 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 4651 | /* ReDiscovery RSCN */ |
e8b62011 JS |
4652 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
4653 | "0234 ReDiscovery RSCN " | |
4654 | "Data: x%x x%x x%x\n", | |
4655 | vport->fc_rscn_id_cnt, vport->fc_flag, | |
4656 | vport->port_state); | |
dea3101e | 4657 | } |
7f5f3d0d JS |
4658 | /* Indicate we are done walking fc_rscn_id_list on this vport */ |
4659 | vport->fc_rscn_flush = 0; | |
dea3101e | 4660 | /* Send back ACC */ |
51ef4c26 | 4661 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
dea3101e | 4662 | /* send RECOVERY event for ALL nodes that match RSCN payload */ |
2e0fef85 | 4663 | lpfc_rscn_recovery_check(vport); |
09372820 | 4664 | spin_lock_irq(shost->host_lock); |
92d7f7b0 | 4665 | vport->fc_flag &= ~FC_RSCN_DEFERRED; |
09372820 | 4666 | spin_unlock_irq(shost->host_lock); |
c9f8735b | 4667 | return 0; |
dea3101e | 4668 | } |
858c9f6c JS |
4669 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
4670 | "RCV RSCN: did:x%x/ste:x%x flg:x%x", | |
4671 | ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); | |
4672 | ||
2e0fef85 JS |
4673 | spin_lock_irq(shost->host_lock); |
4674 | vport->fc_flag |= FC_RSCN_MODE; | |
4675 | spin_unlock_irq(shost->host_lock); | |
4676 | vport->fc_rscn_id_list[vport->fc_rscn_id_cnt++] = pcmd; | |
7f5f3d0d JS |
4677 | /* Indicate we are done walking fc_rscn_id_list on this vport */ |
4678 | vport->fc_rscn_flush = 0; | |
dea3101e JB |
4679 | /* |
4680 | * If we zero, cmdiocb->context2, the calling routine will | |
4681 | * not try to free it. | |
4682 | */ | |
4683 | cmdiocb->context2 = NULL; | |
2e0fef85 | 4684 | lpfc_set_disctmo(vport); |
dea3101e | 4685 | /* Send back ACC */ |
51ef4c26 | 4686 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
dea3101e | 4687 | /* send RECOVERY event for ALL nodes that match RSCN payload */ |
2e0fef85 | 4688 | lpfc_rscn_recovery_check(vport); |
2e0fef85 | 4689 | return lpfc_els_handle_rscn(vport); |
dea3101e JB |
4690 | } |
4691 | ||
e59058c4 | 4692 | /** |
3621a710 | 4693 | * lpfc_els_handle_rscn - Handle rscn for a vport |
e59058c4 JS |
4694 | * @vport: pointer to a host virtual N_Port data structure. |
4695 | * | |
4696 | * This routine handles the Registration State Configuration Notification | |
4697 | * (RSCN) for a @vport. If login to NameServer does not exist, a new ndlp shall | |
4698 | * be created and a Port Login (PLOGI) to the NameServer is issued. Otherwise, | |
4699 | * if the ndlp to NameServer exists, a Common Transport (CT) command to the | |
4700 | * NameServer shall be issued. If CT command to the NameServer fails to be | |
4701 | * issued, the lpfc_els_flush_rscn() routine shall be invoked to clean up any | |
4702 | * RSCN activities with the @vport. | |
4703 | * | |
4704 | * Return code | |
4705 | * 0 - Cleaned up rscn on the @vport | |
4706 | * 1 - Wait for plogi to name server before proceed | |
4707 | **/ | |
dea3101e | 4708 | int |
2e0fef85 | 4709 | lpfc_els_handle_rscn(struct lpfc_vport *vport) |
dea3101e JB |
4710 | { |
4711 | struct lpfc_nodelist *ndlp; | |
2e0fef85 | 4712 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 4713 | |
92d7f7b0 JS |
4714 | /* Ignore RSCN if the port is being torn down. */ |
4715 | if (vport->load_flag & FC_UNLOADING) { | |
4716 | lpfc_els_flush_rscn(vport); | |
4717 | return 0; | |
4718 | } | |
4719 | ||
dea3101e | 4720 | /* Start timer for RSCN processing */ |
2e0fef85 | 4721 | lpfc_set_disctmo(vport); |
dea3101e JB |
4722 | |
4723 | /* RSCN processed */ | |
e8b62011 JS |
4724 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
4725 | "0215 RSCN processed Data: x%x x%x x%x x%x\n", | |
4726 | vport->fc_flag, 0, vport->fc_rscn_id_cnt, | |
4727 | vport->port_state); | |
dea3101e JB |
4728 | |
4729 | /* To process RSCN, first compare RSCN data with NameServer */ | |
2e0fef85 | 4730 | vport->fc_ns_retry = 0; |
0ff10d46 JS |
4731 | vport->num_disc_nodes = 0; |
4732 | ||
2e0fef85 | 4733 | ndlp = lpfc_findnode_did(vport, NameServer_DID); |
e47c9093 JS |
4734 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) |
4735 | && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) { | |
dea3101e | 4736 | /* Good ndlp, issue CT Request to NameServer */ |
92d7f7b0 | 4737 | if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0) == 0) |
dea3101e JB |
4738 | /* Wait for NameServer query cmpl before we can |
4739 | continue */ | |
c9f8735b | 4740 | return 1; |
dea3101e JB |
4741 | } else { |
4742 | /* If login to NameServer does not exist, issue one */ | |
4743 | /* Good status, issue PLOGI to NameServer */ | |
2e0fef85 | 4744 | ndlp = lpfc_findnode_did(vport, NameServer_DID); |
e47c9093 | 4745 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) |
dea3101e JB |
4746 | /* Wait for NameServer login cmpl before we can |
4747 | continue */ | |
c9f8735b | 4748 | return 1; |
2e0fef85 | 4749 | |
e47c9093 JS |
4750 | if (ndlp) { |
4751 | ndlp = lpfc_enable_node(vport, ndlp, | |
4752 | NLP_STE_PLOGI_ISSUE); | |
4753 | if (!ndlp) { | |
4754 | lpfc_els_flush_rscn(vport); | |
4755 | return 0; | |
4756 | } | |
4757 | ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE; | |
dea3101e | 4758 | } else { |
e47c9093 JS |
4759 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); |
4760 | if (!ndlp) { | |
4761 | lpfc_els_flush_rscn(vport); | |
4762 | return 0; | |
4763 | } | |
2e0fef85 | 4764 | lpfc_nlp_init(vport, ndlp, NameServer_DID); |
5024ab17 | 4765 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 4766 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); |
dea3101e | 4767 | } |
e47c9093 JS |
4768 | ndlp->nlp_type |= NLP_FABRIC; |
4769 | lpfc_issue_els_plogi(vport, NameServer_DID, 0); | |
4770 | /* Wait for NameServer login cmpl before we can | |
4771 | * continue | |
4772 | */ | |
4773 | return 1; | |
dea3101e JB |
4774 | } |
4775 | ||
2e0fef85 | 4776 | lpfc_els_flush_rscn(vport); |
c9f8735b | 4777 | return 0; |
dea3101e JB |
4778 | } |
4779 | ||
e59058c4 | 4780 | /** |
3621a710 | 4781 | * lpfc_els_rcv_flogi - Process an unsolicited flogi iocb |
e59058c4 JS |
4782 | * @vport: pointer to a host virtual N_Port data structure. |
4783 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4784 | * @ndlp: pointer to a node-list data structure. | |
4785 | * | |
4786 | * This routine processes Fabric Login (FLOGI) IOCB received as an ELS | |
4787 | * unsolicited event. An unsolicited FLOGI can be received in a point-to- | |
4788 | * point topology. As an unsolicited FLOGI should not be received in a loop | |
4789 | * mode, any unsolicited FLOGI received in loop mode shall be ignored. The | |
4790 | * lpfc_check_sparm() routine is invoked to check the parameters in the | |
4791 | * unsolicited FLOGI. If parameters validation failed, the routine | |
4792 | * lpfc_els_rsp_reject() shall be called with reject reason code set to | |
4793 | * LSEXP_SPARM_OPTIONS to reject the FLOGI. Otherwise, the Port WWN in the | |
4794 | * FLOGI shall be compared with the Port WWN of the @vport to determine who | |
4795 | * will initiate PLOGI. The higher lexicographical value party shall has | |
4796 | * higher priority (as the winning port) and will initiate PLOGI and | |
4797 | * communicate Port_IDs (Addresses) for both nodes in PLOGI. The result | |
4798 | * of this will be marked in the @vport fc_flag field with FC_PT2PT_PLOGI | |
4799 | * and then the lpfc_els_rsp_acc() routine is invoked to accept the FLOGI. | |
4800 | * | |
4801 | * Return code | |
4802 | * 0 - Successfully processed the unsolicited flogi | |
4803 | * 1 - Failed to process the unsolicited flogi | |
4804 | **/ | |
dea3101e | 4805 | static int |
2e0fef85 | 4806 | lpfc_els_rcv_flogi(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
51ef4c26 | 4807 | struct lpfc_nodelist *ndlp) |
dea3101e | 4808 | { |
2e0fef85 JS |
4809 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
4810 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
4811 | struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; |
4812 | uint32_t *lp = (uint32_t *) pcmd->virt; | |
4813 | IOCB_t *icmd = &cmdiocb->iocb; | |
4814 | struct serv_parm *sp; | |
4815 | LPFC_MBOXQ_t *mbox; | |
4816 | struct ls_rjt stat; | |
4817 | uint32_t cmd, did; | |
4818 | int rc; | |
4819 | ||
4820 | cmd = *lp++; | |
4821 | sp = (struct serv_parm *) lp; | |
4822 | ||
4823 | /* FLOGI received */ | |
4824 | ||
2e0fef85 | 4825 | lpfc_set_disctmo(vport); |
dea3101e | 4826 | |
76a95d75 | 4827 | if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { |
dea3101e JB |
4828 | /* We should never receive a FLOGI in loop mode, ignore it */ |
4829 | did = icmd->un.elsreq64.remoteID; | |
4830 | ||
4831 | /* An FLOGI ELS command <elsCmd> was received from DID <did> in | |
4832 | Loop Mode */ | |
e8b62011 JS |
4833 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
4834 | "0113 An FLOGI ELS command x%x was " | |
4835 | "received from DID x%x in Loop Mode\n", | |
4836 | cmd, did); | |
c9f8735b | 4837 | return 1; |
dea3101e JB |
4838 | } |
4839 | ||
4840 | did = Fabric_DID; | |
4841 | ||
341af102 | 4842 | if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3, 1))) { |
dea3101e JB |
4843 | /* For a FLOGI we accept, then if our portname is greater |
4844 | * then the remote portname we initiate Nport login. | |
4845 | */ | |
4846 | ||
2e0fef85 | 4847 | rc = memcmp(&vport->fc_portname, &sp->portName, |
92d7f7b0 | 4848 | sizeof(struct lpfc_name)); |
dea3101e JB |
4849 | |
4850 | if (!rc) { | |
2e0fef85 JS |
4851 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
4852 | if (!mbox) | |
c9f8735b | 4853 | return 1; |
2e0fef85 | 4854 | |
dea3101e JB |
4855 | lpfc_linkdown(phba); |
4856 | lpfc_init_link(phba, mbox, | |
4857 | phba->cfg_topology, | |
4858 | phba->cfg_link_speed); | |
04c68496 | 4859 | mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; |
dea3101e | 4860 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; |
ed957684 | 4861 | mbox->vport = vport; |
0b727fea | 4862 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
5b8bd0c9 | 4863 | lpfc_set_loopback_flag(phba); |
dea3101e | 4864 | if (rc == MBX_NOT_FINISHED) { |
329f9bc7 | 4865 | mempool_free(mbox, phba->mbox_mem_pool); |
dea3101e | 4866 | } |
c9f8735b | 4867 | return 1; |
2fe165b6 | 4868 | } else if (rc > 0) { /* greater than */ |
2e0fef85 JS |
4869 | spin_lock_irq(shost->host_lock); |
4870 | vport->fc_flag |= FC_PT2PT_PLOGI; | |
4871 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 4872 | } |
2e0fef85 JS |
4873 | spin_lock_irq(shost->host_lock); |
4874 | vport->fc_flag |= FC_PT2PT; | |
4875 | vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
4876 | spin_unlock_irq(shost->host_lock); | |
dea3101e JB |
4877 | } else { |
4878 | /* Reject this request because invalid parameters */ | |
4879 | stat.un.b.lsRjtRsvd0 = 0; | |
4880 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
4881 | stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; | |
4882 | stat.un.b.vendorUnique = 0; | |
858c9f6c JS |
4883 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, |
4884 | NULL); | |
c9f8735b | 4885 | return 1; |
dea3101e JB |
4886 | } |
4887 | ||
4888 | /* Send back ACC */ | |
51ef4c26 | 4889 | lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL); |
dea3101e | 4890 | |
c9f8735b | 4891 | return 0; |
dea3101e JB |
4892 | } |
4893 | ||
e59058c4 | 4894 | /** |
3621a710 | 4895 | * lpfc_els_rcv_rnid - Process an unsolicited rnid iocb |
e59058c4 JS |
4896 | * @vport: pointer to a host virtual N_Port data structure. |
4897 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4898 | * @ndlp: pointer to a node-list data structure. | |
4899 | * | |
4900 | * This routine processes Request Node Identification Data (RNID) IOCB | |
4901 | * received as an ELS unsolicited event. Only when the RNID specified format | |
4902 | * 0x0 or 0xDF (Topology Discovery Specific Node Identification Data) | |
4903 | * present, this routine will invoke the lpfc_els_rsp_rnid_acc() routine to | |
4904 | * Accept (ACC) the RNID ELS command. All the other RNID formats are | |
4905 | * rejected by invoking the lpfc_els_rsp_reject() routine. | |
4906 | * | |
4907 | * Return code | |
4908 | * 0 - Successfully processed rnid iocb (currently always return 0) | |
4909 | **/ | |
dea3101e | 4910 | static int |
2e0fef85 JS |
4911 | lpfc_els_rcv_rnid(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
4912 | struct lpfc_nodelist *ndlp) | |
dea3101e JB |
4913 | { |
4914 | struct lpfc_dmabuf *pcmd; | |
4915 | uint32_t *lp; | |
4916 | IOCB_t *icmd; | |
4917 | RNID *rn; | |
4918 | struct ls_rjt stat; | |
4919 | uint32_t cmd, did; | |
4920 | ||
4921 | icmd = &cmdiocb->iocb; | |
4922 | did = icmd->un.elsreq64.remoteID; | |
4923 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
4924 | lp = (uint32_t *) pcmd->virt; | |
4925 | ||
4926 | cmd = *lp++; | |
4927 | rn = (RNID *) lp; | |
4928 | ||
4929 | /* RNID received */ | |
4930 | ||
4931 | switch (rn->Format) { | |
4932 | case 0: | |
4933 | case RNID_TOPOLOGY_DISC: | |
4934 | /* Send back ACC */ | |
2e0fef85 | 4935 | lpfc_els_rsp_rnid_acc(vport, rn->Format, cmdiocb, ndlp); |
dea3101e JB |
4936 | break; |
4937 | default: | |
4938 | /* Reject this request because format not supported */ | |
4939 | stat.un.b.lsRjtRsvd0 = 0; | |
4940 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
4941 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
4942 | stat.un.b.vendorUnique = 0; | |
858c9f6c JS |
4943 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, |
4944 | NULL); | |
dea3101e | 4945 | } |
c9f8735b | 4946 | return 0; |
dea3101e JB |
4947 | } |
4948 | ||
12265f68 JS |
4949 | /** |
4950 | * lpfc_els_rcv_echo - Process an unsolicited echo iocb | |
4951 | * @vport: pointer to a host virtual N_Port data structure. | |
4952 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4953 | * @ndlp: pointer to a node-list data structure. | |
4954 | * | |
4955 | * Return code | |
4956 | * 0 - Successfully processed echo iocb (currently always return 0) | |
4957 | **/ | |
4958 | static int | |
4959 | lpfc_els_rcv_echo(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, | |
4960 | struct lpfc_nodelist *ndlp) | |
4961 | { | |
4962 | uint8_t *pcmd; | |
4963 | ||
4964 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt); | |
4965 | ||
4966 | /* skip over first word of echo command to find echo data */ | |
4967 | pcmd += sizeof(uint32_t); | |
4968 | ||
4969 | lpfc_els_rsp_echo_acc(vport, pcmd, cmdiocb, ndlp); | |
4970 | return 0; | |
4971 | } | |
4972 | ||
e59058c4 | 4973 | /** |
3621a710 | 4974 | * lpfc_els_rcv_lirr - Process an unsolicited lirr iocb |
e59058c4 JS |
4975 | * @vport: pointer to a host virtual N_Port data structure. |
4976 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4977 | * @ndlp: pointer to a node-list data structure. | |
4978 | * | |
4979 | * This routine processes a Link Incident Report Registration(LIRR) IOCB | |
4980 | * received as an ELS unsolicited event. Currently, this function just invokes | |
4981 | * the lpfc_els_rsp_reject() routine to reject the LIRR IOCB unconditionally. | |
4982 | * | |
4983 | * Return code | |
4984 | * 0 - Successfully processed lirr iocb (currently always return 0) | |
4985 | **/ | |
dea3101e | 4986 | static int |
2e0fef85 JS |
4987 | lpfc_els_rcv_lirr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
4988 | struct lpfc_nodelist *ndlp) | |
7bb3b137 JW |
4989 | { |
4990 | struct ls_rjt stat; | |
4991 | ||
4992 | /* For now, unconditionally reject this command */ | |
4993 | stat.un.b.lsRjtRsvd0 = 0; | |
4994 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
4995 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
4996 | stat.un.b.vendorUnique = 0; | |
858c9f6c | 4997 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); |
7bb3b137 JW |
4998 | return 0; |
4999 | } | |
5000 | ||
5ffc266e JS |
5001 | /** |
5002 | * lpfc_els_rcv_rrq - Process an unsolicited rrq iocb | |
5003 | * @vport: pointer to a host virtual N_Port data structure. | |
5004 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5005 | * @ndlp: pointer to a node-list data structure. | |
5006 | * | |
5007 | * This routine processes a Reinstate Recovery Qualifier (RRQ) IOCB | |
5008 | * received as an ELS unsolicited event. A request to RRQ shall only | |
5009 | * be accepted if the Originator Nx_Port N_Port_ID or the Responder | |
5010 | * Nx_Port N_Port_ID of the target Exchange is the same as the | |
5011 | * N_Port_ID of the Nx_Port that makes the request. If the RRQ is | |
5012 | * not accepted, an LS_RJT with reason code "Unable to perform | |
5013 | * command request" and reason code explanation "Invalid Originator | |
5014 | * S_ID" shall be returned. For now, we just unconditionally accept | |
5015 | * RRQ from the target. | |
5016 | **/ | |
5017 | static void | |
5018 | lpfc_els_rcv_rrq(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, | |
5019 | struct lpfc_nodelist *ndlp) | |
5020 | { | |
5021 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); | |
19ca7609 JS |
5022 | if (vport->phba->sli_rev == LPFC_SLI_REV4) |
5023 | lpfc_els_clear_rrq(vport, cmdiocb, ndlp); | |
5ffc266e JS |
5024 | } |
5025 | ||
12265f68 JS |
5026 | /** |
5027 | * lpfc_els_rsp_rls_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd | |
5028 | * @phba: pointer to lpfc hba data structure. | |
5029 | * @pmb: pointer to the driver internal queue element for mailbox command. | |
5030 | * | |
5031 | * This routine is the completion callback function for the MBX_READ_LNK_STAT | |
5032 | * mailbox command. This callback function is to actually send the Accept | |
5033 | * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It | |
5034 | * collects the link statistics from the completion of the MBX_READ_LNK_STAT | |
5035 | * mailbox command, constructs the RPS response with the link statistics | |
5036 | * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC | |
5037 | * response to the RPS. | |
5038 | * | |
5039 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
5040 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
5041 | * will be stored into the context1 field of the IOCB for the completion | |
5042 | * callback function to the RPS Accept Response ELS IOCB command. | |
5043 | * | |
5044 | **/ | |
5045 | static void | |
5046 | lpfc_els_rsp_rls_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) | |
5047 | { | |
5048 | MAILBOX_t *mb; | |
5049 | IOCB_t *icmd; | |
5050 | struct RLS_RSP *rls_rsp; | |
5051 | uint8_t *pcmd; | |
5052 | struct lpfc_iocbq *elsiocb; | |
5053 | struct lpfc_nodelist *ndlp; | |
5054 | uint16_t xri; | |
5055 | uint32_t cmdsize; | |
5056 | ||
5057 | mb = &pmb->u.mb; | |
5058 | ||
5059 | ndlp = (struct lpfc_nodelist *) pmb->context2; | |
5060 | xri = (uint16_t) ((unsigned long)(pmb->context1)); | |
5061 | pmb->context1 = NULL; | |
5062 | pmb->context2 = NULL; | |
5063 | ||
5064 | if (mb->mbxStatus) { | |
5065 | mempool_free(pmb, phba->mbox_mem_pool); | |
5066 | return; | |
5067 | } | |
5068 | ||
5069 | cmdsize = sizeof(struct RLS_RSP) + sizeof(uint32_t); | |
5070 | mempool_free(pmb, phba->mbox_mem_pool); | |
5071 | elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, | |
5072 | lpfc_max_els_tries, ndlp, | |
5073 | ndlp->nlp_DID, ELS_CMD_ACC); | |
5074 | ||
5075 | /* Decrement the ndlp reference count from previous mbox command */ | |
5076 | lpfc_nlp_put(ndlp); | |
5077 | ||
5078 | if (!elsiocb) | |
5079 | return; | |
5080 | ||
5081 | icmd = &elsiocb->iocb; | |
5082 | icmd->ulpContext = xri; | |
5083 | ||
5084 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
5085 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
5086 | pcmd += sizeof(uint32_t); /* Skip past command */ | |
5087 | rls_rsp = (struct RLS_RSP *)pcmd; | |
5088 | ||
5089 | rls_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt); | |
5090 | rls_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt); | |
5091 | rls_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt); | |
5092 | rls_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt); | |
5093 | rls_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord); | |
5094 | rls_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt); | |
5095 | ||
5096 | /* Xmit ELS RLS ACC response tag <ulpIoTag> */ | |
5097 | lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS, | |
5098 | "2874 Xmit ELS RLS ACC response tag x%x xri x%x, " | |
5099 | "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n", | |
5100 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
5101 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
5102 | ndlp->nlp_rpi); | |
5103 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; | |
5104 | phba->fc_stat.elsXmitACC++; | |
5105 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR) | |
5106 | lpfc_els_free_iocb(phba, elsiocb); | |
5107 | } | |
5108 | ||
e59058c4 | 5109 | /** |
3621a710 | 5110 | * lpfc_els_rsp_rps_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd |
e59058c4 JS |
5111 | * @phba: pointer to lpfc hba data structure. |
5112 | * @pmb: pointer to the driver internal queue element for mailbox command. | |
5113 | * | |
5114 | * This routine is the completion callback function for the MBX_READ_LNK_STAT | |
5115 | * mailbox command. This callback function is to actually send the Accept | |
5116 | * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It | |
5117 | * collects the link statistics from the completion of the MBX_READ_LNK_STAT | |
5118 | * mailbox command, constructs the RPS response with the link statistics | |
5119 | * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC | |
5120 | * response to the RPS. | |
5121 | * | |
5122 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
5123 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
5124 | * will be stored into the context1 field of the IOCB for the completion | |
5125 | * callback function to the RPS Accept Response ELS IOCB command. | |
5126 | * | |
5127 | **/ | |
082c0266 | 5128 | static void |
329f9bc7 | 5129 | lpfc_els_rsp_rps_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) |
7bb3b137 | 5130 | { |
7bb3b137 JW |
5131 | MAILBOX_t *mb; |
5132 | IOCB_t *icmd; | |
5133 | RPS_RSP *rps_rsp; | |
5134 | uint8_t *pcmd; | |
5135 | struct lpfc_iocbq *elsiocb; | |
5136 | struct lpfc_nodelist *ndlp; | |
5137 | uint16_t xri, status; | |
5138 | uint32_t cmdsize; | |
5139 | ||
04c68496 | 5140 | mb = &pmb->u.mb; |
7bb3b137 JW |
5141 | |
5142 | ndlp = (struct lpfc_nodelist *) pmb->context2; | |
5143 | xri = (uint16_t) ((unsigned long)(pmb->context1)); | |
041976fb RD |
5144 | pmb->context1 = NULL; |
5145 | pmb->context2 = NULL; | |
7bb3b137 JW |
5146 | |
5147 | if (mb->mbxStatus) { | |
329f9bc7 | 5148 | mempool_free(pmb, phba->mbox_mem_pool); |
7bb3b137 JW |
5149 | return; |
5150 | } | |
5151 | ||
5152 | cmdsize = sizeof(RPS_RSP) + sizeof(uint32_t); | |
329f9bc7 | 5153 | mempool_free(pmb, phba->mbox_mem_pool); |
2e0fef85 JS |
5154 | elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, |
5155 | lpfc_max_els_tries, ndlp, | |
5156 | ndlp->nlp_DID, ELS_CMD_ACC); | |
fa4066b6 JS |
5157 | |
5158 | /* Decrement the ndlp reference count from previous mbox command */ | |
329f9bc7 | 5159 | lpfc_nlp_put(ndlp); |
fa4066b6 | 5160 | |
c9f8735b | 5161 | if (!elsiocb) |
7bb3b137 | 5162 | return; |
7bb3b137 JW |
5163 | |
5164 | icmd = &elsiocb->iocb; | |
5165 | icmd->ulpContext = xri; | |
5166 | ||
5167 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
5168 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 | 5169 | pcmd += sizeof(uint32_t); /* Skip past command */ |
7bb3b137 JW |
5170 | rps_rsp = (RPS_RSP *)pcmd; |
5171 | ||
76a95d75 | 5172 | if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) |
7bb3b137 JW |
5173 | status = 0x10; |
5174 | else | |
5175 | status = 0x8; | |
2e0fef85 | 5176 | if (phba->pport->fc_flag & FC_FABRIC) |
7bb3b137 JW |
5177 | status |= 0x4; |
5178 | ||
5179 | rps_rsp->rsvd1 = 0; | |
09372820 JS |
5180 | rps_rsp->portStatus = cpu_to_be16(status); |
5181 | rps_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt); | |
5182 | rps_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt); | |
5183 | rps_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt); | |
5184 | rps_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt); | |
5185 | rps_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord); | |
5186 | rps_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt); | |
7bb3b137 | 5187 | /* Xmit ELS RPS ACC response tag <ulpIoTag> */ |
e8b62011 JS |
5188 | lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS, |
5189 | "0118 Xmit ELS RPS ACC response tag x%x xri x%x, " | |
5190 | "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n", | |
5191 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
5192 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
5193 | ndlp->nlp_rpi); | |
858c9f6c | 5194 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
7bb3b137 | 5195 | phba->fc_stat.elsXmitACC++; |
3772a991 | 5196 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR) |
7bb3b137 | 5197 | lpfc_els_free_iocb(phba, elsiocb); |
7bb3b137 JW |
5198 | return; |
5199 | } | |
5200 | ||
e59058c4 | 5201 | /** |
12265f68 JS |
5202 | * lpfc_els_rcv_rls - Process an unsolicited rls iocb |
5203 | * @vport: pointer to a host virtual N_Port data structure. | |
5204 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5205 | * @ndlp: pointer to a node-list data structure. | |
5206 | * | |
5207 | * This routine processes Read Port Status (RPL) IOCB received as an | |
5208 | * ELS unsolicited event. It first checks the remote port state. If the | |
5209 | * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE | |
5210 | * state, it invokes the lpfc_els_rsl_reject() routine to send the reject | |
5211 | * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command | |
5212 | * for reading the HBA link statistics. It is for the callback function, | |
5213 | * lpfc_els_rsp_rls_acc(), set to the MBX_READ_LNK_STAT mailbox command | |
5214 | * to actually sending out RPL Accept (ACC) response. | |
5215 | * | |
5216 | * Return codes | |
5217 | * 0 - Successfully processed rls iocb (currently always return 0) | |
5218 | **/ | |
5219 | static int | |
5220 | lpfc_els_rcv_rls(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, | |
5221 | struct lpfc_nodelist *ndlp) | |
5222 | { | |
5223 | struct lpfc_hba *phba = vport->phba; | |
5224 | LPFC_MBOXQ_t *mbox; | |
5225 | struct lpfc_dmabuf *pcmd; | |
5226 | struct ls_rjt stat; | |
5227 | ||
5228 | if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && | |
5229 | (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) | |
5230 | /* reject the unsolicited RPS request and done with it */ | |
5231 | goto reject_out; | |
5232 | ||
5233 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
5234 | ||
5235 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC); | |
5236 | if (mbox) { | |
5237 | lpfc_read_lnk_stat(phba, mbox); | |
5238 | mbox->context1 = | |
5239 | (void *)((unsigned long) cmdiocb->iocb.ulpContext); | |
5240 | mbox->context2 = lpfc_nlp_get(ndlp); | |
5241 | mbox->vport = vport; | |
5242 | mbox->mbox_cmpl = lpfc_els_rsp_rls_acc; | |
5243 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) | |
5244 | != MBX_NOT_FINISHED) | |
5245 | /* Mbox completion will send ELS Response */ | |
5246 | return 0; | |
5247 | /* Decrement reference count used for the failed mbox | |
5248 | * command. | |
5249 | */ | |
5250 | lpfc_nlp_put(ndlp); | |
5251 | mempool_free(mbox, phba->mbox_mem_pool); | |
5252 | } | |
5253 | reject_out: | |
5254 | /* issue rejection response */ | |
5255 | stat.un.b.lsRjtRsvd0 = 0; | |
5256 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
5257 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
5258 | stat.un.b.vendorUnique = 0; | |
5259 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); | |
5260 | return 0; | |
5261 | } | |
5262 | ||
5263 | /** | |
5264 | * lpfc_els_rcv_rtv - Process an unsolicited rtv iocb | |
5265 | * @vport: pointer to a host virtual N_Port data structure. | |
5266 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5267 | * @ndlp: pointer to a node-list data structure. | |
5268 | * | |
5269 | * This routine processes Read Timout Value (RTV) IOCB received as an | |
5270 | * ELS unsolicited event. It first checks the remote port state. If the | |
5271 | * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE | |
5272 | * state, it invokes the lpfc_els_rsl_reject() routine to send the reject | |
5273 | * response. Otherwise, it sends the Accept(ACC) response to a Read Timeout | |
5274 | * Value (RTV) unsolicited IOCB event. | |
5275 | * | |
5276 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
5277 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
5278 | * will be stored into the context1 field of the IOCB for the completion | |
5279 | * callback function to the RPS Accept Response ELS IOCB command. | |
5280 | * | |
5281 | * Return codes | |
5282 | * 0 - Successfully processed rtv iocb (currently always return 0) | |
5283 | **/ | |
5284 | static int | |
5285 | lpfc_els_rcv_rtv(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, | |
5286 | struct lpfc_nodelist *ndlp) | |
5287 | { | |
5288 | struct lpfc_hba *phba = vport->phba; | |
5289 | struct ls_rjt stat; | |
5290 | struct RTV_RSP *rtv_rsp; | |
5291 | uint8_t *pcmd; | |
5292 | struct lpfc_iocbq *elsiocb; | |
5293 | uint32_t cmdsize; | |
5294 | ||
5295 | ||
5296 | if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && | |
5297 | (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) | |
5298 | /* reject the unsolicited RPS request and done with it */ | |
5299 | goto reject_out; | |
5300 | ||
5301 | cmdsize = sizeof(struct RTV_RSP) + sizeof(uint32_t); | |
5302 | elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, | |
5303 | lpfc_max_els_tries, ndlp, | |
5304 | ndlp->nlp_DID, ELS_CMD_ACC); | |
5305 | ||
5306 | if (!elsiocb) | |
5307 | return 1; | |
5308 | ||
5309 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
5310 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
5311 | pcmd += sizeof(uint32_t); /* Skip past command */ | |
5312 | ||
5313 | /* use the command's xri in the response */ | |
5314 | elsiocb->iocb.ulpContext = cmdiocb->iocb.ulpContext; | |
5315 | ||
5316 | rtv_rsp = (struct RTV_RSP *)pcmd; | |
5317 | ||
5318 | /* populate RTV payload */ | |
5319 | rtv_rsp->ratov = cpu_to_be32(phba->fc_ratov * 1000); /* report msecs */ | |
5320 | rtv_rsp->edtov = cpu_to_be32(phba->fc_edtov); | |
5321 | bf_set(qtov_edtovres, rtv_rsp, phba->fc_edtovResol ? 1 : 0); | |
5322 | bf_set(qtov_rttov, rtv_rsp, 0); /* Field is for FC ONLY */ | |
5323 | rtv_rsp->qtov = cpu_to_be32(rtv_rsp->qtov); | |
5324 | ||
5325 | /* Xmit ELS RLS ACC response tag <ulpIoTag> */ | |
5326 | lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS, | |
5327 | "2875 Xmit ELS RTV ACC response tag x%x xri x%x, " | |
5328 | "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x, " | |
5329 | "Data: x%x x%x x%x\n", | |
5330 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
5331 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
5332 | ndlp->nlp_rpi, | |
5333 | rtv_rsp->ratov, rtv_rsp->edtov, rtv_rsp->qtov); | |
5334 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; | |
5335 | phba->fc_stat.elsXmitACC++; | |
5336 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR) | |
5337 | lpfc_els_free_iocb(phba, elsiocb); | |
5338 | return 0; | |
5339 | ||
5340 | reject_out: | |
5341 | /* issue rejection response */ | |
5342 | stat.un.b.lsRjtRsvd0 = 0; | |
5343 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
5344 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
5345 | stat.un.b.vendorUnique = 0; | |
5346 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); | |
5347 | return 0; | |
5348 | } | |
5349 | ||
5350 | /* lpfc_els_rcv_rps - Process an unsolicited rps iocb | |
e59058c4 JS |
5351 | * @vport: pointer to a host virtual N_Port data structure. |
5352 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5353 | * @ndlp: pointer to a node-list data structure. | |
5354 | * | |
5355 | * This routine processes Read Port Status (RPS) IOCB received as an | |
5356 | * ELS unsolicited event. It first checks the remote port state. If the | |
5357 | * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE | |
5358 | * state, it invokes the lpfc_els_rsp_reject() routine to send the reject | |
5359 | * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command | |
5360 | * for reading the HBA link statistics. It is for the callback function, | |
5361 | * lpfc_els_rsp_rps_acc(), set to the MBX_READ_LNK_STAT mailbox command | |
5362 | * to actually sending out RPS Accept (ACC) response. | |
5363 | * | |
5364 | * Return codes | |
5365 | * 0 - Successfully processed rps iocb (currently always return 0) | |
5366 | **/ | |
7bb3b137 | 5367 | static int |
2e0fef85 JS |
5368 | lpfc_els_rcv_rps(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
5369 | struct lpfc_nodelist *ndlp) | |
dea3101e | 5370 | { |
2e0fef85 | 5371 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 5372 | uint32_t *lp; |
7bb3b137 JW |
5373 | uint8_t flag; |
5374 | LPFC_MBOXQ_t *mbox; | |
5375 | struct lpfc_dmabuf *pcmd; | |
5376 | RPS *rps; | |
5377 | struct ls_rjt stat; | |
5378 | ||
2fe165b6 | 5379 | if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && |
90160e01 JS |
5380 | (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) |
5381 | /* reject the unsolicited RPS request and done with it */ | |
5382 | goto reject_out; | |
7bb3b137 JW |
5383 | |
5384 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
5385 | lp = (uint32_t *) pcmd->virt; | |
5386 | flag = (be32_to_cpu(*lp++) & 0xf); | |
5387 | rps = (RPS *) lp; | |
5388 | ||
5389 | if ((flag == 0) || | |
5390 | ((flag == 1) && (be32_to_cpu(rps->un.portNum) == 0)) || | |
2e0fef85 | 5391 | ((flag == 2) && (memcmp(&rps->un.portName, &vport->fc_portname, |
92d7f7b0 | 5392 | sizeof(struct lpfc_name)) == 0))) { |
2e0fef85 | 5393 | |
92d7f7b0 JS |
5394 | printk("Fix me....\n"); |
5395 | dump_stack(); | |
2e0fef85 JS |
5396 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC); |
5397 | if (mbox) { | |
7bb3b137 JW |
5398 | lpfc_read_lnk_stat(phba, mbox); |
5399 | mbox->context1 = | |
92d7f7b0 | 5400 | (void *)((unsigned long) cmdiocb->iocb.ulpContext); |
329f9bc7 | 5401 | mbox->context2 = lpfc_nlp_get(ndlp); |
92d7f7b0 | 5402 | mbox->vport = vport; |
7bb3b137 | 5403 | mbox->mbox_cmpl = lpfc_els_rsp_rps_acc; |
fa4066b6 | 5404 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) |
0b727fea | 5405 | != MBX_NOT_FINISHED) |
7bb3b137 JW |
5406 | /* Mbox completion will send ELS Response */ |
5407 | return 0; | |
fa4066b6 JS |
5408 | /* Decrement reference count used for the failed mbox |
5409 | * command. | |
5410 | */ | |
329f9bc7 | 5411 | lpfc_nlp_put(ndlp); |
7bb3b137 JW |
5412 | mempool_free(mbox, phba->mbox_mem_pool); |
5413 | } | |
5414 | } | |
90160e01 JS |
5415 | |
5416 | reject_out: | |
5417 | /* issue rejection response */ | |
7bb3b137 JW |
5418 | stat.un.b.lsRjtRsvd0 = 0; |
5419 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
5420 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
5421 | stat.un.b.vendorUnique = 0; | |
858c9f6c | 5422 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); |
7bb3b137 JW |
5423 | return 0; |
5424 | } | |
5425 | ||
19ca7609 JS |
5426 | /* lpfc_issue_els_rrq - Process an unsolicited rps iocb |
5427 | * @vport: pointer to a host virtual N_Port data structure. | |
5428 | * @ndlp: pointer to a node-list data structure. | |
5429 | * @did: DID of the target. | |
5430 | * @rrq: Pointer to the rrq struct. | |
5431 | * | |
5432 | * Build a ELS RRQ command and send it to the target. If the issue_iocb is | |
5433 | * Successful the the completion handler will clear the RRQ. | |
5434 | * | |
5435 | * Return codes | |
5436 | * 0 - Successfully sent rrq els iocb. | |
5437 | * 1 - Failed to send rrq els iocb. | |
5438 | **/ | |
5439 | static int | |
5440 | lpfc_issue_els_rrq(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, | |
5441 | uint32_t did, struct lpfc_node_rrq *rrq) | |
5442 | { | |
5443 | struct lpfc_hba *phba = vport->phba; | |
5444 | struct RRQ *els_rrq; | |
5445 | IOCB_t *icmd; | |
5446 | struct lpfc_iocbq *elsiocb; | |
5447 | uint8_t *pcmd; | |
5448 | uint16_t cmdsize; | |
5449 | int ret; | |
5450 | ||
5451 | ||
5452 | if (ndlp != rrq->ndlp) | |
5453 | ndlp = rrq->ndlp; | |
5454 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) | |
5455 | return 1; | |
5456 | ||
5457 | /* If ndlp is not NULL, we will bump the reference count on it */ | |
5458 | cmdsize = (sizeof(uint32_t) + sizeof(struct RRQ)); | |
5459 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, did, | |
5460 | ELS_CMD_RRQ); | |
5461 | if (!elsiocb) | |
5462 | return 1; | |
5463 | ||
5464 | icmd = &elsiocb->iocb; | |
5465 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
5466 | ||
5467 | /* For RRQ request, remainder of payload is Exchange IDs */ | |
5468 | *((uint32_t *) (pcmd)) = ELS_CMD_RRQ; | |
5469 | pcmd += sizeof(uint32_t); | |
5470 | els_rrq = (struct RRQ *) pcmd; | |
5471 | ||
5472 | bf_set(rrq_oxid, els_rrq, rrq->xritag); | |
5473 | bf_set(rrq_rxid, els_rrq, rrq->rxid); | |
5474 | bf_set(rrq_did, els_rrq, vport->fc_myDID); | |
5475 | els_rrq->rrq = cpu_to_be32(els_rrq->rrq); | |
5476 | els_rrq->rrq_exchg = cpu_to_be32(els_rrq->rrq_exchg); | |
5477 | ||
5478 | ||
5479 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, | |
5480 | "Issue RRQ: did:x%x", | |
5481 | did, rrq->xritag, rrq->rxid); | |
5482 | elsiocb->context_un.rrq = rrq; | |
5483 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rrq; | |
5484 | ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); | |
5485 | ||
5486 | if (ret == IOCB_ERROR) { | |
5487 | lpfc_els_free_iocb(phba, elsiocb); | |
5488 | return 1; | |
5489 | } | |
5490 | return 0; | |
5491 | } | |
5492 | ||
5493 | /** | |
5494 | * lpfc_send_rrq - Sends ELS RRQ if needed. | |
5495 | * @phba: pointer to lpfc hba data structure. | |
5496 | * @rrq: pointer to the active rrq. | |
5497 | * | |
5498 | * This routine will call the lpfc_issue_els_rrq if the rrq is | |
5499 | * still active for the xri. If this function returns a failure then | |
5500 | * the caller needs to clean up the RRQ by calling lpfc_clr_active_rrq. | |
5501 | * | |
5502 | * Returns 0 Success. | |
5503 | * 1 Failure. | |
5504 | **/ | |
5505 | int | |
5506 | lpfc_send_rrq(struct lpfc_hba *phba, struct lpfc_node_rrq *rrq) | |
5507 | { | |
5508 | struct lpfc_nodelist *ndlp = lpfc_findnode_did(rrq->vport, | |
5509 | rrq->nlp_DID); | |
5510 | if (lpfc_test_rrq_active(phba, ndlp, rrq->xritag)) | |
5511 | return lpfc_issue_els_rrq(rrq->vport, ndlp, | |
5512 | rrq->nlp_DID, rrq); | |
5513 | else | |
5514 | return 1; | |
5515 | } | |
5516 | ||
e59058c4 | 5517 | /** |
3621a710 | 5518 | * lpfc_els_rsp_rpl_acc - Issue an accept rpl els command |
e59058c4 JS |
5519 | * @vport: pointer to a host virtual N_Port data structure. |
5520 | * @cmdsize: size of the ELS command. | |
5521 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
5522 | * @ndlp: pointer to a node-list data structure. | |
5523 | * | |
5524 | * This routine issuees an Accept (ACC) Read Port List (RPL) ELS command. | |
5525 | * It is to be called by the lpfc_els_rcv_rpl() routine to accept the RPL. | |
5526 | * | |
5527 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
5528 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
5529 | * will be stored into the context1 field of the IOCB for the completion | |
5530 | * callback function to the RPL Accept Response ELS command. | |
5531 | * | |
5532 | * Return code | |
5533 | * 0 - Successfully issued ACC RPL ELS command | |
5534 | * 1 - Failed to issue ACC RPL ELS command | |
5535 | **/ | |
082c0266 | 5536 | static int |
2e0fef85 JS |
5537 | lpfc_els_rsp_rpl_acc(struct lpfc_vport *vport, uint16_t cmdsize, |
5538 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) | |
7bb3b137 | 5539 | { |
2e0fef85 JS |
5540 | struct lpfc_hba *phba = vport->phba; |
5541 | IOCB_t *icmd, *oldcmd; | |
7bb3b137 JW |
5542 | RPL_RSP rpl_rsp; |
5543 | struct lpfc_iocbq *elsiocb; | |
7bb3b137 | 5544 | uint8_t *pcmd; |
dea3101e | 5545 | |
2e0fef85 JS |
5546 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
5547 | ndlp->nlp_DID, ELS_CMD_ACC); | |
7bb3b137 | 5548 | |
488d1469 | 5549 | if (!elsiocb) |
7bb3b137 | 5550 | return 1; |
488d1469 | 5551 | |
7bb3b137 JW |
5552 | icmd = &elsiocb->iocb; |
5553 | oldcmd = &oldiocb->iocb; | |
5554 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
5555 | ||
5556 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
5557 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 | 5558 | pcmd += sizeof(uint16_t); |
7bb3b137 JW |
5559 | *((uint16_t *)(pcmd)) = be16_to_cpu(cmdsize); |
5560 | pcmd += sizeof(uint16_t); | |
5561 | ||
5562 | /* Setup the RPL ACC payload */ | |
5563 | rpl_rsp.listLen = be32_to_cpu(1); | |
5564 | rpl_rsp.index = 0; | |
5565 | rpl_rsp.port_num_blk.portNum = 0; | |
2e0fef85 JS |
5566 | rpl_rsp.port_num_blk.portID = be32_to_cpu(vport->fc_myDID); |
5567 | memcpy(&rpl_rsp.port_num_blk.portName, &vport->fc_portname, | |
7bb3b137 | 5568 | sizeof(struct lpfc_name)); |
7bb3b137 | 5569 | memcpy(pcmd, &rpl_rsp, cmdsize - sizeof(uint32_t)); |
7bb3b137 | 5570 | /* Xmit ELS RPL ACC response tag <ulpIoTag> */ |
e8b62011 JS |
5571 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
5572 | "0120 Xmit ELS RPL ACC response tag x%x " | |
5573 | "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, " | |
5574 | "rpi x%x\n", | |
5575 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
5576 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
5577 | ndlp->nlp_rpi); | |
858c9f6c | 5578 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
7bb3b137 | 5579 | phba->fc_stat.elsXmitACC++; |
3772a991 JS |
5580 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
5581 | IOCB_ERROR) { | |
7bb3b137 JW |
5582 | lpfc_els_free_iocb(phba, elsiocb); |
5583 | return 1; | |
5584 | } | |
5585 | return 0; | |
5586 | } | |
5587 | ||
e59058c4 | 5588 | /** |
3621a710 | 5589 | * lpfc_els_rcv_rpl - Process an unsolicited rpl iocb |
e59058c4 JS |
5590 | * @vport: pointer to a host virtual N_Port data structure. |
5591 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5592 | * @ndlp: pointer to a node-list data structure. | |
5593 | * | |
5594 | * This routine processes Read Port List (RPL) IOCB received as an ELS | |
5595 | * unsolicited event. It first checks the remote port state. If the remote | |
5596 | * port is not in NLP_STE_UNMAPPED_NODE and NLP_STE_MAPPED_NODE states, it | |
5597 | * invokes the lpfc_els_rsp_reject() routine to send reject response. | |
5598 | * Otherwise, this routine then invokes the lpfc_els_rsp_rpl_acc() routine | |
5599 | * to accept the RPL. | |
5600 | * | |
5601 | * Return code | |
5602 | * 0 - Successfully processed rpl iocb (currently always return 0) | |
5603 | **/ | |
7bb3b137 | 5604 | static int |
2e0fef85 JS |
5605 | lpfc_els_rcv_rpl(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
5606 | struct lpfc_nodelist *ndlp) | |
7bb3b137 JW |
5607 | { |
5608 | struct lpfc_dmabuf *pcmd; | |
5609 | uint32_t *lp; | |
5610 | uint32_t maxsize; | |
5611 | uint16_t cmdsize; | |
5612 | RPL *rpl; | |
5613 | struct ls_rjt stat; | |
5614 | ||
2fe165b6 JW |
5615 | if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && |
5616 | (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) { | |
90160e01 | 5617 | /* issue rejection response */ |
7bb3b137 JW |
5618 | stat.un.b.lsRjtRsvd0 = 0; |
5619 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
5620 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
5621 | stat.un.b.vendorUnique = 0; | |
858c9f6c JS |
5622 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, |
5623 | NULL); | |
90160e01 JS |
5624 | /* rejected the unsolicited RPL request and done with it */ |
5625 | return 0; | |
7bb3b137 JW |
5626 | } |
5627 | ||
dea3101e JB |
5628 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; |
5629 | lp = (uint32_t *) pcmd->virt; | |
7bb3b137 | 5630 | rpl = (RPL *) (lp + 1); |
7bb3b137 | 5631 | maxsize = be32_to_cpu(rpl->maxsize); |
dea3101e | 5632 | |
7bb3b137 JW |
5633 | /* We support only one port */ |
5634 | if ((rpl->index == 0) && | |
5635 | ((maxsize == 0) || | |
5636 | ((maxsize * sizeof(uint32_t)) >= sizeof(RPL_RSP)))) { | |
5637 | cmdsize = sizeof(uint32_t) + sizeof(RPL_RSP); | |
2fe165b6 | 5638 | } else { |
7bb3b137 JW |
5639 | cmdsize = sizeof(uint32_t) + maxsize * sizeof(uint32_t); |
5640 | } | |
2e0fef85 | 5641 | lpfc_els_rsp_rpl_acc(vport, cmdsize, cmdiocb, ndlp); |
dea3101e JB |
5642 | |
5643 | return 0; | |
5644 | } | |
5645 | ||
e59058c4 | 5646 | /** |
3621a710 | 5647 | * lpfc_els_rcv_farp - Process an unsolicited farp request els command |
e59058c4 JS |
5648 | * @vport: pointer to a virtual N_Port data structure. |
5649 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5650 | * @ndlp: pointer to a node-list data structure. | |
5651 | * | |
5652 | * This routine processes Fibre Channel Address Resolution Protocol | |
5653 | * (FARP) Request IOCB received as an ELS unsolicited event. Currently, | |
5654 | * the lpfc driver only supports matching on WWPN or WWNN for FARP. As such, | |
5655 | * FARP_MATCH_PORT flag and FARP_MATCH_NODE flag are checked against the | |
5656 | * Match Flag in the FARP request IOCB: if FARP_MATCH_PORT flag is set, the | |
5657 | * remote PortName is compared against the FC PortName stored in the @vport | |
5658 | * data structure; if FARP_MATCH_NODE flag is set, the remote NodeName is | |
5659 | * compared against the FC NodeName stored in the @vport data structure. | |
5660 | * If any of these matches and the FARP_REQUEST_FARPR flag is set in the | |
5661 | * FARP request IOCB Response Flag, the lpfc_issue_els_farpr() routine is | |
5662 | * invoked to send out FARP Response to the remote node. Before sending the | |
5663 | * FARP Response, however, the FARP_REQUEST_PLOGI flag is check in the FARP | |
5664 | * request IOCB Response Flag and, if it is set, the lpfc_issue_els_plogi() | |
5665 | * routine is invoked to log into the remote port first. | |
5666 | * | |
5667 | * Return code | |
5668 | * 0 - Either the FARP Match Mode not supported or successfully processed | |
5669 | **/ | |
dea3101e | 5670 | static int |
2e0fef85 JS |
5671 | lpfc_els_rcv_farp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
5672 | struct lpfc_nodelist *ndlp) | |
dea3101e JB |
5673 | { |
5674 | struct lpfc_dmabuf *pcmd; | |
5675 | uint32_t *lp; | |
5676 | IOCB_t *icmd; | |
5677 | FARP *fp; | |
5678 | uint32_t cmd, cnt, did; | |
5679 | ||
5680 | icmd = &cmdiocb->iocb; | |
5681 | did = icmd->un.elsreq64.remoteID; | |
5682 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
5683 | lp = (uint32_t *) pcmd->virt; | |
5684 | ||
5685 | cmd = *lp++; | |
5686 | fp = (FARP *) lp; | |
dea3101e | 5687 | /* FARP-REQ received from DID <did> */ |
e8b62011 JS |
5688 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
5689 | "0601 FARP-REQ received from DID x%x\n", did); | |
dea3101e JB |
5690 | /* We will only support match on WWPN or WWNN */ |
5691 | if (fp->Mflags & ~(FARP_MATCH_NODE | FARP_MATCH_PORT)) { | |
c9f8735b | 5692 | return 0; |
dea3101e JB |
5693 | } |
5694 | ||
5695 | cnt = 0; | |
5696 | /* If this FARP command is searching for my portname */ | |
5697 | if (fp->Mflags & FARP_MATCH_PORT) { | |
2e0fef85 | 5698 | if (memcmp(&fp->RportName, &vport->fc_portname, |
92d7f7b0 | 5699 | sizeof(struct lpfc_name)) == 0) |
dea3101e JB |
5700 | cnt = 1; |
5701 | } | |
5702 | ||
5703 | /* If this FARP command is searching for my nodename */ | |
5704 | if (fp->Mflags & FARP_MATCH_NODE) { | |
2e0fef85 | 5705 | if (memcmp(&fp->RnodeName, &vport->fc_nodename, |
92d7f7b0 | 5706 | sizeof(struct lpfc_name)) == 0) |
dea3101e JB |
5707 | cnt = 1; |
5708 | } | |
5709 | ||
5710 | if (cnt) { | |
5711 | if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) || | |
5712 | (ndlp->nlp_state == NLP_STE_MAPPED_NODE)) { | |
5713 | /* Log back into the node before sending the FARP. */ | |
5714 | if (fp->Rflags & FARP_REQUEST_PLOGI) { | |
5024ab17 | 5715 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 5716 | lpfc_nlp_set_state(vport, ndlp, |
de0c5b32 | 5717 | NLP_STE_PLOGI_ISSUE); |
2e0fef85 | 5718 | lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); |
dea3101e JB |
5719 | } |
5720 | ||
5721 | /* Send a FARP response to that node */ | |
2e0fef85 JS |
5722 | if (fp->Rflags & FARP_REQUEST_FARPR) |
5723 | lpfc_issue_els_farpr(vport, did, 0); | |
dea3101e JB |
5724 | } |
5725 | } | |
c9f8735b | 5726 | return 0; |
dea3101e JB |
5727 | } |
5728 | ||
e59058c4 | 5729 | /** |
3621a710 | 5730 | * lpfc_els_rcv_farpr - Process an unsolicited farp response iocb |
e59058c4 JS |
5731 | * @vport: pointer to a host virtual N_Port data structure. |
5732 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5733 | * @ndlp: pointer to a node-list data structure. | |
5734 | * | |
5735 | * This routine processes Fibre Channel Address Resolution Protocol | |
5736 | * Response (FARPR) IOCB received as an ELS unsolicited event. It simply | |
5737 | * invokes the lpfc_els_rsp_acc() routine to the remote node to accept | |
5738 | * the FARP response request. | |
5739 | * | |
5740 | * Return code | |
5741 | * 0 - Successfully processed FARPR IOCB (currently always return 0) | |
5742 | **/ | |
dea3101e | 5743 | static int |
2e0fef85 JS |
5744 | lpfc_els_rcv_farpr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
5745 | struct lpfc_nodelist *ndlp) | |
dea3101e JB |
5746 | { |
5747 | struct lpfc_dmabuf *pcmd; | |
5748 | uint32_t *lp; | |
5749 | IOCB_t *icmd; | |
5750 | uint32_t cmd, did; | |
5751 | ||
5752 | icmd = &cmdiocb->iocb; | |
5753 | did = icmd->un.elsreq64.remoteID; | |
5754 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
5755 | lp = (uint32_t *) pcmd->virt; | |
5756 | ||
5757 | cmd = *lp++; | |
5758 | /* FARP-RSP received from DID <did> */ | |
e8b62011 JS |
5759 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
5760 | "0600 FARP-RSP received from DID x%x\n", did); | |
dea3101e | 5761 | /* ACCEPT the Farp resp request */ |
51ef4c26 | 5762 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
dea3101e JB |
5763 | |
5764 | return 0; | |
5765 | } | |
5766 | ||
e59058c4 | 5767 | /** |
3621a710 | 5768 | * lpfc_els_rcv_fan - Process an unsolicited fan iocb command |
e59058c4 JS |
5769 | * @vport: pointer to a host virtual N_Port data structure. |
5770 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5771 | * @fan_ndlp: pointer to a node-list data structure. | |
5772 | * | |
5773 | * This routine processes a Fabric Address Notification (FAN) IOCB | |
5774 | * command received as an ELS unsolicited event. The FAN ELS command will | |
5775 | * only be processed on a physical port (i.e., the @vport represents the | |
5776 | * physical port). The fabric NodeName and PortName from the FAN IOCB are | |
5777 | * compared against those in the phba data structure. If any of those is | |
5778 | * different, the lpfc_initial_flogi() routine is invoked to initialize | |
5779 | * Fabric Login (FLOGI) to the fabric to start the discover over. Otherwise, | |
5780 | * if both of those are identical, the lpfc_issue_fabric_reglogin() routine | |
5781 | * is invoked to register login to the fabric. | |
5782 | * | |
5783 | * Return code | |
5784 | * 0 - Successfully processed fan iocb (currently always return 0). | |
5785 | **/ | |
dea3101e | 5786 | static int |
2e0fef85 JS |
5787 | lpfc_els_rcv_fan(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
5788 | struct lpfc_nodelist *fan_ndlp) | |
dea3101e | 5789 | { |
0d2b6b83 | 5790 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 5791 | uint32_t *lp; |
5024ab17 | 5792 | FAN *fp; |
dea3101e | 5793 | |
0d2b6b83 JS |
5794 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0265 FAN received\n"); |
5795 | lp = (uint32_t *)((struct lpfc_dmabuf *)cmdiocb->context2)->virt; | |
5796 | fp = (FAN *) ++lp; | |
5024ab17 | 5797 | /* FAN received; Fan does not have a reply sequence */ |
0d2b6b83 JS |
5798 | if ((vport == phba->pport) && |
5799 | (vport->port_state == LPFC_LOCAL_CFG_LINK)) { | |
5024ab17 | 5800 | if ((memcmp(&phba->fc_fabparam.nodeName, &fp->FnodeName, |
0d2b6b83 | 5801 | sizeof(struct lpfc_name))) || |
5024ab17 | 5802 | (memcmp(&phba->fc_fabparam.portName, &fp->FportName, |
0d2b6b83 JS |
5803 | sizeof(struct lpfc_name)))) { |
5804 | /* This port has switched fabrics. FLOGI is required */ | |
76a95d75 | 5805 | lpfc_issue_init_vfi(vport); |
0d2b6b83 JS |
5806 | } else { |
5807 | /* FAN verified - skip FLOGI */ | |
5808 | vport->fc_myDID = vport->fc_prevDID; | |
6fb120a7 JS |
5809 | if (phba->sli_rev < LPFC_SLI_REV4) |
5810 | lpfc_issue_fabric_reglogin(vport); | |
5811 | else | |
5812 | lpfc_issue_reg_vfi(vport); | |
5024ab17 | 5813 | } |
dea3101e | 5814 | } |
c9f8735b | 5815 | return 0; |
dea3101e JB |
5816 | } |
5817 | ||
e59058c4 | 5818 | /** |
3621a710 | 5819 | * lpfc_els_timeout - Handler funciton to the els timer |
e59058c4 JS |
5820 | * @ptr: holder for the timer function associated data. |
5821 | * | |
5822 | * This routine is invoked by the ELS timer after timeout. It posts the ELS | |
5823 | * timer timeout event by setting the WORKER_ELS_TMO bit to the work port | |
5824 | * event bitmap and then invokes the lpfc_worker_wake_up() routine to wake | |
5825 | * up the worker thread. It is for the worker thread to invoke the routine | |
5826 | * lpfc_els_timeout_handler() to work on the posted event WORKER_ELS_TMO. | |
5827 | **/ | |
dea3101e JB |
5828 | void |
5829 | lpfc_els_timeout(unsigned long ptr) | |
5830 | { | |
2e0fef85 JS |
5831 | struct lpfc_vport *vport = (struct lpfc_vport *) ptr; |
5832 | struct lpfc_hba *phba = vport->phba; | |
5e9d9b82 | 5833 | uint32_t tmo_posted; |
dea3101e JB |
5834 | unsigned long iflag; |
5835 | ||
2e0fef85 | 5836 | spin_lock_irqsave(&vport->work_port_lock, iflag); |
5e9d9b82 JS |
5837 | tmo_posted = vport->work_port_events & WORKER_ELS_TMO; |
5838 | if (!tmo_posted) | |
2e0fef85 | 5839 | vport->work_port_events |= WORKER_ELS_TMO; |
5e9d9b82 | 5840 | spin_unlock_irqrestore(&vport->work_port_lock, iflag); |
92d7f7b0 | 5841 | |
5e9d9b82 JS |
5842 | if (!tmo_posted) |
5843 | lpfc_worker_wake_up(phba); | |
dea3101e JB |
5844 | return; |
5845 | } | |
5846 | ||
2a9bf3d0 | 5847 | |
e59058c4 | 5848 | /** |
3621a710 | 5849 | * lpfc_els_timeout_handler - Process an els timeout event |
e59058c4 JS |
5850 | * @vport: pointer to a virtual N_Port data structure. |
5851 | * | |
5852 | * This routine is the actual handler function that processes an ELS timeout | |
5853 | * event. It walks the ELS ring to get and abort all the IOCBs (except the | |
5854 | * ABORT/CLOSE/FARP/FARPR/FDISC), which are associated with the @vport by | |
5855 | * invoking the lpfc_sli_issue_abort_iotag() routine. | |
5856 | **/ | |
dea3101e | 5857 | void |
2e0fef85 | 5858 | lpfc_els_timeout_handler(struct lpfc_vport *vport) |
dea3101e | 5859 | { |
2e0fef85 | 5860 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
5861 | struct lpfc_sli_ring *pring; |
5862 | struct lpfc_iocbq *tmp_iocb, *piocb; | |
5863 | IOCB_t *cmd = NULL; | |
5864 | struct lpfc_dmabuf *pcmd; | |
2e0fef85 | 5865 | uint32_t els_command = 0; |
dea3101e | 5866 | uint32_t timeout; |
2e0fef85 | 5867 | uint32_t remote_ID = 0xffffffff; |
2a9bf3d0 JS |
5868 | LIST_HEAD(txcmplq_completions); |
5869 | LIST_HEAD(abort_list); | |
5870 | ||
dea3101e | 5871 | |
dea3101e JB |
5872 | timeout = (uint32_t)(phba->fc_ratov << 1); |
5873 | ||
5874 | pring = &phba->sli.ring[LPFC_ELS_RING]; | |
dea3101e | 5875 | |
2a9bf3d0 JS |
5876 | spin_lock_irq(&phba->hbalock); |
5877 | list_splice_init(&pring->txcmplq, &txcmplq_completions); | |
5878 | spin_unlock_irq(&phba->hbalock); | |
5879 | ||
5880 | list_for_each_entry_safe(piocb, tmp_iocb, &txcmplq_completions, list) { | |
dea3101e JB |
5881 | cmd = &piocb->iocb; |
5882 | ||
2e0fef85 JS |
5883 | if ((piocb->iocb_flag & LPFC_IO_LIBDFC) != 0 || |
5884 | piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN || | |
5885 | piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN) | |
dea3101e | 5886 | continue; |
2e0fef85 JS |
5887 | |
5888 | if (piocb->vport != vport) | |
5889 | continue; | |
5890 | ||
dea3101e | 5891 | pcmd = (struct lpfc_dmabuf *) piocb->context2; |
2e0fef85 JS |
5892 | if (pcmd) |
5893 | els_command = *(uint32_t *) (pcmd->virt); | |
dea3101e | 5894 | |
92d7f7b0 JS |
5895 | if (els_command == ELS_CMD_FARP || |
5896 | els_command == ELS_CMD_FARPR || | |
5897 | els_command == ELS_CMD_FDISC) | |
5898 | continue; | |
5899 | ||
dea3101e | 5900 | if (piocb->drvrTimeout > 0) { |
92d7f7b0 | 5901 | if (piocb->drvrTimeout >= timeout) |
dea3101e | 5902 | piocb->drvrTimeout -= timeout; |
92d7f7b0 | 5903 | else |
dea3101e | 5904 | piocb->drvrTimeout = 0; |
dea3101e JB |
5905 | continue; |
5906 | } | |
5907 | ||
2e0fef85 JS |
5908 | remote_ID = 0xffffffff; |
5909 | if (cmd->ulpCommand != CMD_GEN_REQUEST64_CR) | |
dea3101e | 5910 | remote_ID = cmd->un.elsreq64.remoteID; |
2e0fef85 JS |
5911 | else { |
5912 | struct lpfc_nodelist *ndlp; | |
5913 | ndlp = __lpfc_findnode_rpi(vport, cmd->ulpContext); | |
58da1ffb | 5914 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) |
2e0fef85 | 5915 | remote_ID = ndlp->nlp_DID; |
dea3101e | 5916 | } |
2a9bf3d0 JS |
5917 | list_add_tail(&piocb->dlist, &abort_list); |
5918 | } | |
5919 | spin_lock_irq(&phba->hbalock); | |
5920 | list_splice(&txcmplq_completions, &pring->txcmplq); | |
5921 | spin_unlock_irq(&phba->hbalock); | |
5922 | ||
5923 | list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) { | |
e8b62011 | 5924 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
2a9bf3d0 JS |
5925 | "0127 ELS timeout Data: x%x x%x x%x " |
5926 | "x%x\n", els_command, | |
5927 | remote_ID, cmd->ulpCommand, cmd->ulpIoTag); | |
5928 | spin_lock_irq(&phba->hbalock); | |
5929 | list_del_init(&piocb->dlist); | |
07951076 | 5930 | lpfc_sli_issue_abort_iotag(phba, pring, piocb); |
2a9bf3d0 | 5931 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 5932 | } |
5a0e326d | 5933 | |
2e0fef85 JS |
5934 | if (phba->sli.ring[LPFC_ELS_RING].txcmplq_cnt) |
5935 | mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout); | |
dea3101e JB |
5936 | } |
5937 | ||
e59058c4 | 5938 | /** |
3621a710 | 5939 | * lpfc_els_flush_cmd - Clean up the outstanding els commands to a vport |
e59058c4 JS |
5940 | * @vport: pointer to a host virtual N_Port data structure. |
5941 | * | |
5942 | * This routine is used to clean up all the outstanding ELS commands on a | |
5943 | * @vport. It first aborts the @vport by invoking lpfc_fabric_abort_vport() | |
5944 | * routine. After that, it walks the ELS transmit queue to remove all the | |
5945 | * IOCBs with the @vport other than the QUE_RING and ABORT/CLOSE IOCBs. For | |
5946 | * the IOCBs with a non-NULL completion callback function, the callback | |
5947 | * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and | |
5948 | * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs with a NULL completion | |
5949 | * callback function, the IOCB will simply be released. Finally, it walks | |
5950 | * the ELS transmit completion queue to issue an abort IOCB to any transmit | |
5951 | * completion queue IOCB that is associated with the @vport and is not | |
5952 | * an IOCB from libdfc (i.e., the management plane IOCBs that are not | |
5953 | * part of the discovery state machine) out to HBA by invoking the | |
5954 | * lpfc_sli_issue_abort_iotag() routine. Note that this function issues the | |
5955 | * abort IOCB to any transmit completion queueed IOCB, it does not guarantee | |
5956 | * the IOCBs are aborted when this function returns. | |
5957 | **/ | |
dea3101e | 5958 | void |
2e0fef85 | 5959 | lpfc_els_flush_cmd(struct lpfc_vport *vport) |
dea3101e | 5960 | { |
2534ba75 | 5961 | LIST_HEAD(completions); |
2e0fef85 | 5962 | struct lpfc_hba *phba = vport->phba; |
329f9bc7 | 5963 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; |
dea3101e JB |
5964 | struct lpfc_iocbq *tmp_iocb, *piocb; |
5965 | IOCB_t *cmd = NULL; | |
92d7f7b0 JS |
5966 | |
5967 | lpfc_fabric_abort_vport(vport); | |
dea3101e | 5968 | |
2e0fef85 | 5969 | spin_lock_irq(&phba->hbalock); |
dea3101e JB |
5970 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) { |
5971 | cmd = &piocb->iocb; | |
5972 | ||
5973 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) { | |
5974 | continue; | |
5975 | } | |
5976 | ||
5977 | /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */ | |
329f9bc7 JS |
5978 | if (cmd->ulpCommand == CMD_QUE_RING_BUF_CN || |
5979 | cmd->ulpCommand == CMD_QUE_RING_BUF64_CN || | |
5980 | cmd->ulpCommand == CMD_CLOSE_XRI_CN || | |
5981 | cmd->ulpCommand == CMD_ABORT_XRI_CN) | |
dea3101e | 5982 | continue; |
dea3101e | 5983 | |
2e0fef85 JS |
5984 | if (piocb->vport != vport) |
5985 | continue; | |
5986 | ||
2534ba75 | 5987 | list_move_tail(&piocb->list, &completions); |
1dcb58e5 | 5988 | pring->txq_cnt--; |
dea3101e JB |
5989 | } |
5990 | ||
5991 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { | |
dea3101e JB |
5992 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) { |
5993 | continue; | |
5994 | } | |
dea3101e | 5995 | |
2e0fef85 JS |
5996 | if (piocb->vport != vport) |
5997 | continue; | |
5998 | ||
07951076 | 5999 | lpfc_sli_issue_abort_iotag(phba, pring, piocb); |
dea3101e | 6000 | } |
2e0fef85 | 6001 | spin_unlock_irq(&phba->hbalock); |
2534ba75 | 6002 | |
a257bf90 JS |
6003 | /* Cancell all the IOCBs from the completions list */ |
6004 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
6005 | IOERR_SLI_ABORTED); | |
2534ba75 | 6006 | |
dea3101e JB |
6007 | return; |
6008 | } | |
6009 | ||
e59058c4 | 6010 | /** |
3621a710 | 6011 | * lpfc_els_flush_all_cmd - Clean up all the outstanding els commands to a HBA |
e59058c4 JS |
6012 | * @phba: pointer to lpfc hba data structure. |
6013 | * | |
6014 | * This routine is used to clean up all the outstanding ELS commands on a | |
6015 | * @phba. It first aborts the @phba by invoking the lpfc_fabric_abort_hba() | |
6016 | * routine. After that, it walks the ELS transmit queue to remove all the | |
6017 | * IOCBs to the @phba other than the QUE_RING and ABORT/CLOSE IOCBs. For | |
6018 | * the IOCBs with the completion callback function associated, the callback | |
6019 | * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and | |
6020 | * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs without the completion | |
6021 | * callback function associated, the IOCB will simply be released. Finally, | |
6022 | * it walks the ELS transmit completion queue to issue an abort IOCB to any | |
6023 | * transmit completion queue IOCB that is not an IOCB from libdfc (i.e., the | |
6024 | * management plane IOCBs that are not part of the discovery state machine) | |
6025 | * out to HBA by invoking the lpfc_sli_issue_abort_iotag() routine. | |
6026 | **/ | |
549e55cd JS |
6027 | void |
6028 | lpfc_els_flush_all_cmd(struct lpfc_hba *phba) | |
6029 | { | |
6030 | LIST_HEAD(completions); | |
6031 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; | |
6032 | struct lpfc_iocbq *tmp_iocb, *piocb; | |
6033 | IOCB_t *cmd = NULL; | |
6034 | ||
6035 | lpfc_fabric_abort_hba(phba); | |
6036 | spin_lock_irq(&phba->hbalock); | |
6037 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) { | |
6038 | cmd = &piocb->iocb; | |
6039 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) | |
6040 | continue; | |
6041 | /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */ | |
6042 | if (cmd->ulpCommand == CMD_QUE_RING_BUF_CN || | |
6043 | cmd->ulpCommand == CMD_QUE_RING_BUF64_CN || | |
6044 | cmd->ulpCommand == CMD_CLOSE_XRI_CN || | |
6045 | cmd->ulpCommand == CMD_ABORT_XRI_CN) | |
6046 | continue; | |
6047 | list_move_tail(&piocb->list, &completions); | |
6048 | pring->txq_cnt--; | |
6049 | } | |
6050 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { | |
6051 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) | |
6052 | continue; | |
6053 | lpfc_sli_issue_abort_iotag(phba, pring, piocb); | |
6054 | } | |
6055 | spin_unlock_irq(&phba->hbalock); | |
a257bf90 JS |
6056 | |
6057 | /* Cancel all the IOCBs from the completions list */ | |
6058 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
6059 | IOERR_SLI_ABORTED); | |
6060 | ||
549e55cd JS |
6061 | return; |
6062 | } | |
6063 | ||
ea2151b4 | 6064 | /** |
3621a710 | 6065 | * lpfc_send_els_failure_event - Posts an ELS command failure event |
ea2151b4 JS |
6066 | * @phba: Pointer to hba context object. |
6067 | * @cmdiocbp: Pointer to command iocb which reported error. | |
6068 | * @rspiocbp: Pointer to response iocb which reported error. | |
6069 | * | |
6070 | * This function sends an event when there is an ELS command | |
6071 | * failure. | |
6072 | **/ | |
6073 | void | |
6074 | lpfc_send_els_failure_event(struct lpfc_hba *phba, | |
6075 | struct lpfc_iocbq *cmdiocbp, | |
6076 | struct lpfc_iocbq *rspiocbp) | |
6077 | { | |
6078 | struct lpfc_vport *vport = cmdiocbp->vport; | |
6079 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
6080 | struct lpfc_lsrjt_event lsrjt_event; | |
6081 | struct lpfc_fabric_event_header fabric_event; | |
6082 | struct ls_rjt stat; | |
6083 | struct lpfc_nodelist *ndlp; | |
6084 | uint32_t *pcmd; | |
6085 | ||
6086 | ndlp = cmdiocbp->context1; | |
6087 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) | |
6088 | return; | |
6089 | ||
6090 | if (rspiocbp->iocb.ulpStatus == IOSTAT_LS_RJT) { | |
6091 | lsrjt_event.header.event_type = FC_REG_ELS_EVENT; | |
6092 | lsrjt_event.header.subcategory = LPFC_EVENT_LSRJT_RCV; | |
6093 | memcpy(lsrjt_event.header.wwpn, &ndlp->nlp_portname, | |
6094 | sizeof(struct lpfc_name)); | |
6095 | memcpy(lsrjt_event.header.wwnn, &ndlp->nlp_nodename, | |
6096 | sizeof(struct lpfc_name)); | |
6097 | pcmd = (uint32_t *) (((struct lpfc_dmabuf *) | |
6098 | cmdiocbp->context2)->virt); | |
49198b37 | 6099 | lsrjt_event.command = (pcmd != NULL) ? *pcmd : 0; |
ea2151b4 JS |
6100 | stat.un.lsRjtError = be32_to_cpu(rspiocbp->iocb.un.ulpWord[4]); |
6101 | lsrjt_event.reason_code = stat.un.b.lsRjtRsnCode; | |
6102 | lsrjt_event.explanation = stat.un.b.lsRjtRsnCodeExp; | |
6103 | fc_host_post_vendor_event(shost, | |
6104 | fc_get_event_number(), | |
6105 | sizeof(lsrjt_event), | |
6106 | (char *)&lsrjt_event, | |
ddcc50f0 | 6107 | LPFC_NL_VENDOR_ID); |
ea2151b4 JS |
6108 | return; |
6109 | } | |
6110 | if ((rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY) || | |
6111 | (rspiocbp->iocb.ulpStatus == IOSTAT_FABRIC_BSY)) { | |
6112 | fabric_event.event_type = FC_REG_FABRIC_EVENT; | |
6113 | if (rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY) | |
6114 | fabric_event.subcategory = LPFC_EVENT_PORT_BUSY; | |
6115 | else | |
6116 | fabric_event.subcategory = LPFC_EVENT_FABRIC_BUSY; | |
6117 | memcpy(fabric_event.wwpn, &ndlp->nlp_portname, | |
6118 | sizeof(struct lpfc_name)); | |
6119 | memcpy(fabric_event.wwnn, &ndlp->nlp_nodename, | |
6120 | sizeof(struct lpfc_name)); | |
6121 | fc_host_post_vendor_event(shost, | |
6122 | fc_get_event_number(), | |
6123 | sizeof(fabric_event), | |
6124 | (char *)&fabric_event, | |
ddcc50f0 | 6125 | LPFC_NL_VENDOR_ID); |
ea2151b4 JS |
6126 | return; |
6127 | } | |
6128 | ||
6129 | } | |
6130 | ||
6131 | /** | |
3621a710 | 6132 | * lpfc_send_els_event - Posts unsolicited els event |
ea2151b4 JS |
6133 | * @vport: Pointer to vport object. |
6134 | * @ndlp: Pointer FC node object. | |
6135 | * @cmd: ELS command code. | |
6136 | * | |
6137 | * This function posts an event when there is an incoming | |
6138 | * unsolicited ELS command. | |
6139 | **/ | |
6140 | static void | |
6141 | lpfc_send_els_event(struct lpfc_vport *vport, | |
6142 | struct lpfc_nodelist *ndlp, | |
ddcc50f0 | 6143 | uint32_t *payload) |
ea2151b4 | 6144 | { |
ddcc50f0 JS |
6145 | struct lpfc_els_event_header *els_data = NULL; |
6146 | struct lpfc_logo_event *logo_data = NULL; | |
ea2151b4 JS |
6147 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
6148 | ||
ddcc50f0 JS |
6149 | if (*payload == ELS_CMD_LOGO) { |
6150 | logo_data = kmalloc(sizeof(struct lpfc_logo_event), GFP_KERNEL); | |
6151 | if (!logo_data) { | |
6152 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
6153 | "0148 Failed to allocate memory " | |
6154 | "for LOGO event\n"); | |
6155 | return; | |
6156 | } | |
6157 | els_data = &logo_data->header; | |
6158 | } else { | |
6159 | els_data = kmalloc(sizeof(struct lpfc_els_event_header), | |
6160 | GFP_KERNEL); | |
6161 | if (!els_data) { | |
6162 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
6163 | "0149 Failed to allocate memory " | |
6164 | "for ELS event\n"); | |
6165 | return; | |
6166 | } | |
6167 | } | |
6168 | els_data->event_type = FC_REG_ELS_EVENT; | |
6169 | switch (*payload) { | |
ea2151b4 | 6170 | case ELS_CMD_PLOGI: |
ddcc50f0 | 6171 | els_data->subcategory = LPFC_EVENT_PLOGI_RCV; |
ea2151b4 JS |
6172 | break; |
6173 | case ELS_CMD_PRLO: | |
ddcc50f0 | 6174 | els_data->subcategory = LPFC_EVENT_PRLO_RCV; |
ea2151b4 JS |
6175 | break; |
6176 | case ELS_CMD_ADISC: | |
ddcc50f0 JS |
6177 | els_data->subcategory = LPFC_EVENT_ADISC_RCV; |
6178 | break; | |
6179 | case ELS_CMD_LOGO: | |
6180 | els_data->subcategory = LPFC_EVENT_LOGO_RCV; | |
6181 | /* Copy the WWPN in the LOGO payload */ | |
6182 | memcpy(logo_data->logo_wwpn, &payload[2], | |
6183 | sizeof(struct lpfc_name)); | |
ea2151b4 JS |
6184 | break; |
6185 | default: | |
e916141c | 6186 | kfree(els_data); |
ea2151b4 JS |
6187 | return; |
6188 | } | |
ddcc50f0 JS |
6189 | memcpy(els_data->wwpn, &ndlp->nlp_portname, sizeof(struct lpfc_name)); |
6190 | memcpy(els_data->wwnn, &ndlp->nlp_nodename, sizeof(struct lpfc_name)); | |
6191 | if (*payload == ELS_CMD_LOGO) { | |
6192 | fc_host_post_vendor_event(shost, | |
6193 | fc_get_event_number(), | |
6194 | sizeof(struct lpfc_logo_event), | |
6195 | (char *)logo_data, | |
6196 | LPFC_NL_VENDOR_ID); | |
6197 | kfree(logo_data); | |
6198 | } else { | |
6199 | fc_host_post_vendor_event(shost, | |
6200 | fc_get_event_number(), | |
6201 | sizeof(struct lpfc_els_event_header), | |
6202 | (char *)els_data, | |
6203 | LPFC_NL_VENDOR_ID); | |
6204 | kfree(els_data); | |
6205 | } | |
ea2151b4 JS |
6206 | |
6207 | return; | |
6208 | } | |
6209 | ||
6210 | ||
e59058c4 | 6211 | /** |
3621a710 | 6212 | * lpfc_els_unsol_buffer - Process an unsolicited event data buffer |
e59058c4 JS |
6213 | * @phba: pointer to lpfc hba data structure. |
6214 | * @pring: pointer to a SLI ring. | |
6215 | * @vport: pointer to a host virtual N_Port data structure. | |
6216 | * @elsiocb: pointer to lpfc els command iocb data structure. | |
6217 | * | |
6218 | * This routine is used for processing the IOCB associated with a unsolicited | |
6219 | * event. It first determines whether there is an existing ndlp that matches | |
6220 | * the DID from the unsolicited IOCB. If not, it will create a new one with | |
6221 | * the DID from the unsolicited IOCB. The ELS command from the unsolicited | |
6222 | * IOCB is then used to invoke the proper routine and to set up proper state | |
6223 | * of the discovery state machine. | |
6224 | **/ | |
ed957684 JS |
6225 | static void |
6226 | lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
92d7f7b0 | 6227 | struct lpfc_vport *vport, struct lpfc_iocbq *elsiocb) |
dea3101e | 6228 | { |
87af33fe | 6229 | struct Scsi_Host *shost; |
dea3101e | 6230 | struct lpfc_nodelist *ndlp; |
dea3101e | 6231 | struct ls_rjt stat; |
92d7f7b0 | 6232 | uint32_t *payload; |
2e0fef85 | 6233 | uint32_t cmd, did, newnode, rjt_err = 0; |
ed957684 | 6234 | IOCB_t *icmd = &elsiocb->iocb; |
dea3101e | 6235 | |
e47c9093 | 6236 | if (!vport || !(elsiocb->context2)) |
dea3101e | 6237 | goto dropit; |
2e0fef85 | 6238 | |
dea3101e | 6239 | newnode = 0; |
92d7f7b0 JS |
6240 | payload = ((struct lpfc_dmabuf *)elsiocb->context2)->virt; |
6241 | cmd = *payload; | |
ed957684 | 6242 | if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) == 0) |
495a714c | 6243 | lpfc_post_buffer(phba, pring, 1); |
dea3101e | 6244 | |
858c9f6c JS |
6245 | did = icmd->un.rcvels.remoteID; |
6246 | if (icmd->ulpStatus) { | |
6247 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, | |
6248 | "RCV Unsol ELS: status:x%x/x%x did:x%x", | |
6249 | icmd->ulpStatus, icmd->un.ulpWord[4], did); | |
dea3101e | 6250 | goto dropit; |
858c9f6c | 6251 | } |
dea3101e JB |
6252 | |
6253 | /* Check to see if link went down during discovery */ | |
ed957684 | 6254 | if (lpfc_els_chk_latt(vport)) |
dea3101e | 6255 | goto dropit; |
dea3101e | 6256 | |
c868595d | 6257 | /* Ignore traffic received during vport shutdown. */ |
92d7f7b0 JS |
6258 | if (vport->load_flag & FC_UNLOADING) |
6259 | goto dropit; | |
6260 | ||
92494144 JS |
6261 | /* If NPort discovery is delayed drop incoming ELS */ |
6262 | if ((vport->fc_flag & FC_DISC_DELAYED) && | |
6263 | (cmd != ELS_CMD_PLOGI)) | |
6264 | goto dropit; | |
6265 | ||
2e0fef85 | 6266 | ndlp = lpfc_findnode_did(vport, did); |
c9f8735b | 6267 | if (!ndlp) { |
dea3101e | 6268 | /* Cannot find existing Fabric ndlp, so allocate a new one */ |
c9f8735b | 6269 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); |
ed957684 | 6270 | if (!ndlp) |
dea3101e | 6271 | goto dropit; |
dea3101e | 6272 | |
2e0fef85 | 6273 | lpfc_nlp_init(vport, ndlp, did); |
98c9ea5c | 6274 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
dea3101e | 6275 | newnode = 1; |
e47c9093 | 6276 | if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) |
dea3101e | 6277 | ndlp->nlp_type |= NLP_FABRIC; |
58da1ffb JS |
6278 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { |
6279 | ndlp = lpfc_enable_node(vport, ndlp, | |
6280 | NLP_STE_UNUSED_NODE); | |
6281 | if (!ndlp) | |
6282 | goto dropit; | |
6283 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); | |
6284 | newnode = 1; | |
6285 | if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) | |
6286 | ndlp->nlp_type |= NLP_FABRIC; | |
6287 | } else if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) { | |
6288 | /* This is similar to the new node path */ | |
6289 | ndlp = lpfc_nlp_get(ndlp); | |
6290 | if (!ndlp) | |
6291 | goto dropit; | |
6292 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); | |
6293 | newnode = 1; | |
87af33fe | 6294 | } |
dea3101e JB |
6295 | |
6296 | phba->fc_stat.elsRcvFrame++; | |
e47c9093 | 6297 | |
329f9bc7 | 6298 | elsiocb->context1 = lpfc_nlp_get(ndlp); |
2e0fef85 | 6299 | elsiocb->vport = vport; |
dea3101e JB |
6300 | |
6301 | if ((cmd & ELS_CMD_MASK) == ELS_CMD_RSCN) { | |
6302 | cmd &= ELS_CMD_MASK; | |
6303 | } | |
6304 | /* ELS command <elsCmd> received from NPORT <did> */ | |
e8b62011 JS |
6305 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
6306 | "0112 ELS command x%x received from NPORT x%x " | |
6307 | "Data: x%x\n", cmd, did, vport->port_state); | |
dea3101e JB |
6308 | switch (cmd) { |
6309 | case ELS_CMD_PLOGI: | |
858c9f6c JS |
6310 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6311 | "RCV PLOGI: did:x%x/ste:x%x flg:x%x", | |
6312 | did, vport->port_state, ndlp->nlp_flag); | |
6313 | ||
dea3101e | 6314 | phba->fc_stat.elsRcvPLOGI++; |
858c9f6c JS |
6315 | ndlp = lpfc_plogi_confirm_nport(phba, payload, ndlp); |
6316 | ||
ddcc50f0 | 6317 | lpfc_send_els_event(vport, ndlp, payload); |
92494144 JS |
6318 | |
6319 | /* If Nport discovery is delayed, reject PLOGIs */ | |
6320 | if (vport->fc_flag & FC_DISC_DELAYED) { | |
6321 | rjt_err = LSRJT_UNABLE_TPC; | |
6322 | break; | |
6323 | } | |
858c9f6c | 6324 | if (vport->port_state < LPFC_DISC_AUTH) { |
1b32f6aa JS |
6325 | if (!(phba->pport->fc_flag & FC_PT2PT) || |
6326 | (phba->pport->fc_flag & FC_PT2PT_PLOGI)) { | |
6327 | rjt_err = LSRJT_UNABLE_TPC; | |
6328 | break; | |
6329 | } | |
6330 | /* We get here, and drop thru, if we are PT2PT with | |
6331 | * another NPort and the other side has initiated | |
6332 | * the PLOGI before responding to our FLOGI. | |
6333 | */ | |
dea3101e | 6334 | } |
87af33fe JS |
6335 | |
6336 | shost = lpfc_shost_from_vport(vport); | |
6337 | spin_lock_irq(shost->host_lock); | |
6338 | ndlp->nlp_flag &= ~NLP_TARGET_REMOVE; | |
6339 | spin_unlock_irq(shost->host_lock); | |
6340 | ||
2e0fef85 JS |
6341 | lpfc_disc_state_machine(vport, ndlp, elsiocb, |
6342 | NLP_EVT_RCV_PLOGI); | |
858c9f6c | 6343 | |
dea3101e JB |
6344 | break; |
6345 | case ELS_CMD_FLOGI: | |
858c9f6c JS |
6346 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6347 | "RCV FLOGI: did:x%x/ste:x%x flg:x%x", | |
6348 | did, vport->port_state, ndlp->nlp_flag); | |
6349 | ||
dea3101e | 6350 | phba->fc_stat.elsRcvFLOGI++; |
51ef4c26 | 6351 | lpfc_els_rcv_flogi(vport, elsiocb, ndlp); |
87af33fe | 6352 | if (newnode) |
98c9ea5c | 6353 | lpfc_nlp_put(ndlp); |
dea3101e JB |
6354 | break; |
6355 | case ELS_CMD_LOGO: | |
858c9f6c JS |
6356 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6357 | "RCV LOGO: did:x%x/ste:x%x flg:x%x", | |
6358 | did, vport->port_state, ndlp->nlp_flag); | |
6359 | ||
dea3101e | 6360 | phba->fc_stat.elsRcvLOGO++; |
ddcc50f0 | 6361 | lpfc_send_els_event(vport, ndlp, payload); |
2e0fef85 | 6362 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 6363 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e JB |
6364 | break; |
6365 | } | |
2e0fef85 | 6366 | lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_LOGO); |
dea3101e JB |
6367 | break; |
6368 | case ELS_CMD_PRLO: | |
858c9f6c JS |
6369 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6370 | "RCV PRLO: did:x%x/ste:x%x flg:x%x", | |
6371 | did, vport->port_state, ndlp->nlp_flag); | |
6372 | ||
dea3101e | 6373 | phba->fc_stat.elsRcvPRLO++; |
ddcc50f0 | 6374 | lpfc_send_els_event(vport, ndlp, payload); |
2e0fef85 | 6375 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 6376 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e JB |
6377 | break; |
6378 | } | |
2e0fef85 | 6379 | lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLO); |
dea3101e JB |
6380 | break; |
6381 | case ELS_CMD_RSCN: | |
6382 | phba->fc_stat.elsRcvRSCN++; | |
51ef4c26 | 6383 | lpfc_els_rcv_rscn(vport, elsiocb, ndlp); |
87af33fe | 6384 | if (newnode) |
98c9ea5c | 6385 | lpfc_nlp_put(ndlp); |
dea3101e JB |
6386 | break; |
6387 | case ELS_CMD_ADISC: | |
858c9f6c JS |
6388 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6389 | "RCV ADISC: did:x%x/ste:x%x flg:x%x", | |
6390 | did, vport->port_state, ndlp->nlp_flag); | |
6391 | ||
ddcc50f0 | 6392 | lpfc_send_els_event(vport, ndlp, payload); |
dea3101e | 6393 | phba->fc_stat.elsRcvADISC++; |
2e0fef85 | 6394 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 6395 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e JB |
6396 | break; |
6397 | } | |
2e0fef85 JS |
6398 | lpfc_disc_state_machine(vport, ndlp, elsiocb, |
6399 | NLP_EVT_RCV_ADISC); | |
dea3101e JB |
6400 | break; |
6401 | case ELS_CMD_PDISC: | |
858c9f6c JS |
6402 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6403 | "RCV PDISC: did:x%x/ste:x%x flg:x%x", | |
6404 | did, vport->port_state, ndlp->nlp_flag); | |
6405 | ||
dea3101e | 6406 | phba->fc_stat.elsRcvPDISC++; |
2e0fef85 | 6407 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 6408 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e JB |
6409 | break; |
6410 | } | |
2e0fef85 JS |
6411 | lpfc_disc_state_machine(vport, ndlp, elsiocb, |
6412 | NLP_EVT_RCV_PDISC); | |
dea3101e JB |
6413 | break; |
6414 | case ELS_CMD_FARPR: | |
858c9f6c JS |
6415 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6416 | "RCV FARPR: did:x%x/ste:x%x flg:x%x", | |
6417 | did, vport->port_state, ndlp->nlp_flag); | |
6418 | ||
dea3101e | 6419 | phba->fc_stat.elsRcvFARPR++; |
2e0fef85 | 6420 | lpfc_els_rcv_farpr(vport, elsiocb, ndlp); |
dea3101e JB |
6421 | break; |
6422 | case ELS_CMD_FARP: | |
858c9f6c JS |
6423 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6424 | "RCV FARP: did:x%x/ste:x%x flg:x%x", | |
6425 | did, vport->port_state, ndlp->nlp_flag); | |
6426 | ||
dea3101e | 6427 | phba->fc_stat.elsRcvFARP++; |
2e0fef85 | 6428 | lpfc_els_rcv_farp(vport, elsiocb, ndlp); |
dea3101e JB |
6429 | break; |
6430 | case ELS_CMD_FAN: | |
858c9f6c JS |
6431 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6432 | "RCV FAN: did:x%x/ste:x%x flg:x%x", | |
6433 | did, vport->port_state, ndlp->nlp_flag); | |
6434 | ||
dea3101e | 6435 | phba->fc_stat.elsRcvFAN++; |
2e0fef85 | 6436 | lpfc_els_rcv_fan(vport, elsiocb, ndlp); |
dea3101e | 6437 | break; |
dea3101e | 6438 | case ELS_CMD_PRLI: |
858c9f6c JS |
6439 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6440 | "RCV PRLI: did:x%x/ste:x%x flg:x%x", | |
6441 | did, vport->port_state, ndlp->nlp_flag); | |
6442 | ||
dea3101e | 6443 | phba->fc_stat.elsRcvPRLI++; |
2e0fef85 | 6444 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 6445 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e JB |
6446 | break; |
6447 | } | |
2e0fef85 | 6448 | lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLI); |
dea3101e | 6449 | break; |
7bb3b137 | 6450 | case ELS_CMD_LIRR: |
858c9f6c JS |
6451 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6452 | "RCV LIRR: did:x%x/ste:x%x flg:x%x", | |
6453 | did, vport->port_state, ndlp->nlp_flag); | |
6454 | ||
7bb3b137 | 6455 | phba->fc_stat.elsRcvLIRR++; |
2e0fef85 | 6456 | lpfc_els_rcv_lirr(vport, elsiocb, ndlp); |
87af33fe | 6457 | if (newnode) |
98c9ea5c | 6458 | lpfc_nlp_put(ndlp); |
7bb3b137 | 6459 | break; |
12265f68 JS |
6460 | case ELS_CMD_RLS: |
6461 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, | |
6462 | "RCV RLS: did:x%x/ste:x%x flg:x%x", | |
6463 | did, vport->port_state, ndlp->nlp_flag); | |
6464 | ||
6465 | phba->fc_stat.elsRcvRLS++; | |
6466 | lpfc_els_rcv_rls(vport, elsiocb, ndlp); | |
6467 | if (newnode) | |
6468 | lpfc_nlp_put(ndlp); | |
6469 | break; | |
7bb3b137 | 6470 | case ELS_CMD_RPS: |
858c9f6c JS |
6471 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6472 | "RCV RPS: did:x%x/ste:x%x flg:x%x", | |
6473 | did, vport->port_state, ndlp->nlp_flag); | |
6474 | ||
7bb3b137 | 6475 | phba->fc_stat.elsRcvRPS++; |
2e0fef85 | 6476 | lpfc_els_rcv_rps(vport, elsiocb, ndlp); |
87af33fe | 6477 | if (newnode) |
98c9ea5c | 6478 | lpfc_nlp_put(ndlp); |
7bb3b137 JW |
6479 | break; |
6480 | case ELS_CMD_RPL: | |
858c9f6c JS |
6481 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6482 | "RCV RPL: did:x%x/ste:x%x flg:x%x", | |
6483 | did, vport->port_state, ndlp->nlp_flag); | |
6484 | ||
7bb3b137 | 6485 | phba->fc_stat.elsRcvRPL++; |
2e0fef85 | 6486 | lpfc_els_rcv_rpl(vport, elsiocb, ndlp); |
87af33fe | 6487 | if (newnode) |
98c9ea5c | 6488 | lpfc_nlp_put(ndlp); |
7bb3b137 | 6489 | break; |
dea3101e | 6490 | case ELS_CMD_RNID: |
858c9f6c JS |
6491 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6492 | "RCV RNID: did:x%x/ste:x%x flg:x%x", | |
6493 | did, vport->port_state, ndlp->nlp_flag); | |
6494 | ||
dea3101e | 6495 | phba->fc_stat.elsRcvRNID++; |
2e0fef85 | 6496 | lpfc_els_rcv_rnid(vport, elsiocb, ndlp); |
87af33fe | 6497 | if (newnode) |
98c9ea5c | 6498 | lpfc_nlp_put(ndlp); |
dea3101e | 6499 | break; |
12265f68 JS |
6500 | case ELS_CMD_RTV: |
6501 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, | |
6502 | "RCV RTV: did:x%x/ste:x%x flg:x%x", | |
6503 | did, vport->port_state, ndlp->nlp_flag); | |
6504 | phba->fc_stat.elsRcvRTV++; | |
6505 | lpfc_els_rcv_rtv(vport, elsiocb, ndlp); | |
6506 | if (newnode) | |
6507 | lpfc_nlp_put(ndlp); | |
6508 | break; | |
5ffc266e JS |
6509 | case ELS_CMD_RRQ: |
6510 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, | |
6511 | "RCV RRQ: did:x%x/ste:x%x flg:x%x", | |
6512 | did, vport->port_state, ndlp->nlp_flag); | |
6513 | ||
6514 | phba->fc_stat.elsRcvRRQ++; | |
6515 | lpfc_els_rcv_rrq(vport, elsiocb, ndlp); | |
6516 | if (newnode) | |
6517 | lpfc_nlp_put(ndlp); | |
6518 | break; | |
12265f68 JS |
6519 | case ELS_CMD_ECHO: |
6520 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, | |
6521 | "RCV ECHO: did:x%x/ste:x%x flg:x%x", | |
6522 | did, vport->port_state, ndlp->nlp_flag); | |
6523 | ||
6524 | phba->fc_stat.elsRcvECHO++; | |
6525 | lpfc_els_rcv_echo(vport, elsiocb, ndlp); | |
6526 | if (newnode) | |
6527 | lpfc_nlp_put(ndlp); | |
6528 | break; | |
dea3101e | 6529 | default: |
858c9f6c JS |
6530 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6531 | "RCV ELS cmd: cmd:x%x did:x%x/ste:x%x", | |
6532 | cmd, did, vport->port_state); | |
6533 | ||
dea3101e | 6534 | /* Unsupported ELS command, reject */ |
63e801ce | 6535 | rjt_err = LSRJT_CMD_UNSUPPORTED; |
dea3101e JB |
6536 | |
6537 | /* Unknown ELS command <elsCmd> received from NPORT <did> */ | |
e8b62011 JS |
6538 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
6539 | "0115 Unknown ELS command x%x " | |
6540 | "received from NPORT x%x\n", cmd, did); | |
87af33fe | 6541 | if (newnode) |
98c9ea5c | 6542 | lpfc_nlp_put(ndlp); |
dea3101e JB |
6543 | break; |
6544 | } | |
6545 | ||
6546 | /* check if need to LS_RJT received ELS cmd */ | |
6547 | if (rjt_err) { | |
92d7f7b0 | 6548 | memset(&stat, 0, sizeof(stat)); |
858c9f6c | 6549 | stat.un.b.lsRjtRsnCode = rjt_err; |
1f679caf | 6550 | stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; |
858c9f6c JS |
6551 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, elsiocb, ndlp, |
6552 | NULL); | |
dea3101e JB |
6553 | } |
6554 | ||
d7c255b2 JS |
6555 | lpfc_nlp_put(elsiocb->context1); |
6556 | elsiocb->context1 = NULL; | |
ed957684 JS |
6557 | return; |
6558 | ||
6559 | dropit: | |
98c9ea5c | 6560 | if (vport && !(vport->load_flag & FC_UNLOADING)) |
6fb120a7 JS |
6561 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
6562 | "0111 Dropping received ELS cmd " | |
ed957684 | 6563 | "Data: x%x x%x x%x\n", |
6fb120a7 | 6564 | icmd->ulpStatus, icmd->un.ulpWord[4], icmd->ulpTimeout); |
ed957684 JS |
6565 | phba->fc_stat.elsRcvDrop++; |
6566 | } | |
6567 | ||
e59058c4 | 6568 | /** |
3621a710 | 6569 | * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier |
e59058c4 JS |
6570 | * @phba: pointer to lpfc hba data structure. |
6571 | * @vpi: host virtual N_Port identifier. | |
6572 | * | |
6573 | * This routine finds a vport on a HBA (referred by @phba) through a | |
6574 | * @vpi. The function walks the HBA's vport list and returns the address | |
6575 | * of the vport with the matching @vpi. | |
6576 | * | |
6577 | * Return code | |
6578 | * NULL - No vport with the matching @vpi found | |
6579 | * Otherwise - Address to the vport with the matching @vpi. | |
6580 | **/ | |
6669f9bb | 6581 | struct lpfc_vport * |
92d7f7b0 JS |
6582 | lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi) |
6583 | { | |
6584 | struct lpfc_vport *vport; | |
549e55cd | 6585 | unsigned long flags; |
92d7f7b0 | 6586 | |
549e55cd | 6587 | spin_lock_irqsave(&phba->hbalock, flags); |
92d7f7b0 | 6588 | list_for_each_entry(vport, &phba->port_list, listentry) { |
549e55cd JS |
6589 | if (vport->vpi == vpi) { |
6590 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
92d7f7b0 | 6591 | return vport; |
549e55cd | 6592 | } |
92d7f7b0 | 6593 | } |
549e55cd | 6594 | spin_unlock_irqrestore(&phba->hbalock, flags); |
92d7f7b0 JS |
6595 | return NULL; |
6596 | } | |
ed957684 | 6597 | |
e59058c4 | 6598 | /** |
3621a710 | 6599 | * lpfc_els_unsol_event - Process an unsolicited event from an els sli ring |
e59058c4 JS |
6600 | * @phba: pointer to lpfc hba data structure. |
6601 | * @pring: pointer to a SLI ring. | |
6602 | * @elsiocb: pointer to lpfc els iocb data structure. | |
6603 | * | |
6604 | * This routine is used to process an unsolicited event received from a SLI | |
6605 | * (Service Level Interface) ring. The actual processing of the data buffer | |
6606 | * associated with the unsolicited event is done by invoking the routine | |
6607 | * lpfc_els_unsol_buffer() after properly set up the iocb buffer from the | |
6608 | * SLI ring on which the unsolicited event was received. | |
6609 | **/ | |
ed957684 JS |
6610 | void |
6611 | lpfc_els_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
6612 | struct lpfc_iocbq *elsiocb) | |
6613 | { | |
6614 | struct lpfc_vport *vport = phba->pport; | |
ed957684 | 6615 | IOCB_t *icmd = &elsiocb->iocb; |
ed957684 | 6616 | dma_addr_t paddr; |
92d7f7b0 JS |
6617 | struct lpfc_dmabuf *bdeBuf1 = elsiocb->context2; |
6618 | struct lpfc_dmabuf *bdeBuf2 = elsiocb->context3; | |
6619 | ||
d7c255b2 | 6620 | elsiocb->context1 = NULL; |
92d7f7b0 JS |
6621 | elsiocb->context2 = NULL; |
6622 | elsiocb->context3 = NULL; | |
ed957684 | 6623 | |
92d7f7b0 JS |
6624 | if (icmd->ulpStatus == IOSTAT_NEED_BUFFER) { |
6625 | lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ); | |
6626 | } else if (icmd->ulpStatus == IOSTAT_LOCAL_REJECT && | |
6627 | (icmd->un.ulpWord[4] & 0xff) == IOERR_RCV_BUFFER_WAITING) { | |
ed957684 JS |
6628 | phba->fc_stat.NoRcvBuf++; |
6629 | /* Not enough posted buffers; Try posting more buffers */ | |
92d7f7b0 | 6630 | if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) |
495a714c | 6631 | lpfc_post_buffer(phba, pring, 0); |
ed957684 JS |
6632 | return; |
6633 | } | |
6634 | ||
92d7f7b0 JS |
6635 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && |
6636 | (icmd->ulpCommand == CMD_IOCB_RCV_ELS64_CX || | |
6637 | icmd->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) { | |
6638 | if (icmd->unsli3.rcvsli3.vpi == 0xffff) | |
6639 | vport = phba->pport; | |
6fb120a7 JS |
6640 | else |
6641 | vport = lpfc_find_vport_by_vpid(phba, | |
6642 | icmd->unsli3.rcvsli3.vpi - phba->vpi_base); | |
92d7f7b0 | 6643 | } |
7f5f3d0d JS |
6644 | /* If there are no BDEs associated |
6645 | * with this IOCB, there is nothing to do. | |
6646 | */ | |
ed957684 JS |
6647 | if (icmd->ulpBdeCount == 0) |
6648 | return; | |
6649 | ||
7f5f3d0d JS |
6650 | /* type of ELS cmd is first 32bit word |
6651 | * in packet | |
6652 | */ | |
ed957684 | 6653 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
92d7f7b0 | 6654 | elsiocb->context2 = bdeBuf1; |
ed957684 JS |
6655 | } else { |
6656 | paddr = getPaddr(icmd->un.cont64[0].addrHigh, | |
6657 | icmd->un.cont64[0].addrLow); | |
92d7f7b0 JS |
6658 | elsiocb->context2 = lpfc_sli_ringpostbuf_get(phba, pring, |
6659 | paddr); | |
ed957684 JS |
6660 | } |
6661 | ||
92d7f7b0 JS |
6662 | lpfc_els_unsol_buffer(phba, pring, vport, elsiocb); |
6663 | /* | |
6664 | * The different unsolicited event handlers would tell us | |
6665 | * if they are done with "mp" by setting context2 to NULL. | |
6666 | */ | |
dea3101e | 6667 | if (elsiocb->context2) { |
92d7f7b0 JS |
6668 | lpfc_in_buf_free(phba, (struct lpfc_dmabuf *)elsiocb->context2); |
6669 | elsiocb->context2 = NULL; | |
dea3101e | 6670 | } |
ed957684 JS |
6671 | |
6672 | /* RCV_ELS64_CX provide for 2 BDEs - process 2nd if included */ | |
92d7f7b0 | 6673 | if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) && |
ed957684 | 6674 | icmd->ulpBdeCount == 2) { |
92d7f7b0 JS |
6675 | elsiocb->context2 = bdeBuf2; |
6676 | lpfc_els_unsol_buffer(phba, pring, vport, elsiocb); | |
ed957684 JS |
6677 | /* free mp if we are done with it */ |
6678 | if (elsiocb->context2) { | |
92d7f7b0 JS |
6679 | lpfc_in_buf_free(phba, elsiocb->context2); |
6680 | elsiocb->context2 = NULL; | |
6681 | } | |
6682 | } | |
6683 | } | |
6684 | ||
e59058c4 | 6685 | /** |
3621a710 | 6686 | * lpfc_do_scr_ns_plogi - Issue a plogi to the name server for scr |
e59058c4 JS |
6687 | * @phba: pointer to lpfc hba data structure. |
6688 | * @vport: pointer to a virtual N_Port data structure. | |
6689 | * | |
6690 | * This routine issues a Port Login (PLOGI) to the Name Server with | |
6691 | * State Change Request (SCR) for a @vport. This routine will create an | |
6692 | * ndlp for the Name Server associated to the @vport if such node does | |
6693 | * not already exist. The PLOGI to Name Server is issued by invoking the | |
6694 | * lpfc_issue_els_plogi() routine. If Fabric-Device Management Interface | |
6695 | * (FDMI) is configured to the @vport, a FDMI node will be created and | |
6696 | * the PLOGI to FDMI is issued by invoking lpfc_issue_els_plogi() routine. | |
6697 | **/ | |
92d7f7b0 JS |
6698 | void |
6699 | lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport) | |
6700 | { | |
6701 | struct lpfc_nodelist *ndlp, *ndlp_fdmi; | |
92494144 JS |
6702 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
6703 | ||
6704 | /* | |
6705 | * If lpfc_delay_discovery parameter is set and the clean address | |
6706 | * bit is cleared and fc fabric parameters chenged, delay FC NPort | |
6707 | * discovery. | |
6708 | */ | |
6709 | spin_lock_irq(shost->host_lock); | |
6710 | if (vport->fc_flag & FC_DISC_DELAYED) { | |
6711 | spin_unlock_irq(shost->host_lock); | |
6712 | mod_timer(&vport->delayed_disc_tmo, | |
6713 | jiffies + HZ * phba->fc_ratov); | |
6714 | return; | |
6715 | } | |
6716 | spin_unlock_irq(shost->host_lock); | |
92d7f7b0 JS |
6717 | |
6718 | ndlp = lpfc_findnode_did(vport, NameServer_DID); | |
6719 | if (!ndlp) { | |
6720 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
6721 | if (!ndlp) { | |
76a95d75 | 6722 | if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { |
92d7f7b0 JS |
6723 | lpfc_disc_start(vport); |
6724 | return; | |
6725 | } | |
6726 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
e8b62011 JS |
6727 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
6728 | "0251 NameServer login: no memory\n"); | |
92d7f7b0 JS |
6729 | return; |
6730 | } | |
6731 | lpfc_nlp_init(vport, ndlp, NameServer_DID); | |
e47c9093 JS |
6732 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { |
6733 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
6734 | if (!ndlp) { | |
76a95d75 | 6735 | if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { |
e47c9093 JS |
6736 | lpfc_disc_start(vport); |
6737 | return; | |
6738 | } | |
6739 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
6740 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
6741 | "0348 NameServer login: node freed\n"); | |
6742 | return; | |
6743 | } | |
92d7f7b0 | 6744 | } |
58da1ffb | 6745 | ndlp->nlp_type |= NLP_FABRIC; |
92d7f7b0 JS |
6746 | |
6747 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); | |
6748 | ||
6749 | if (lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0)) { | |
6750 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
e8b62011 JS |
6751 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
6752 | "0252 Cannot issue NameServer login\n"); | |
92d7f7b0 JS |
6753 | return; |
6754 | } | |
6755 | ||
3de2a653 | 6756 | if (vport->cfg_fdmi_on) { |
63e801ce JS |
6757 | /* If this is the first time, allocate an ndlp and initialize |
6758 | * it. Otherwise, make sure the node is enabled and then do the | |
6759 | * login. | |
6760 | */ | |
6761 | ndlp_fdmi = lpfc_findnode_did(vport, FDMI_DID); | |
6762 | if (!ndlp_fdmi) { | |
6763 | ndlp_fdmi = mempool_alloc(phba->nlp_mem_pool, | |
6764 | GFP_KERNEL); | |
6765 | if (ndlp_fdmi) { | |
6766 | lpfc_nlp_init(vport, ndlp_fdmi, FDMI_DID); | |
6767 | ndlp_fdmi->nlp_type |= NLP_FABRIC; | |
6768 | } else | |
6769 | return; | |
6770 | } | |
6771 | if (!NLP_CHK_NODE_ACT(ndlp_fdmi)) | |
6772 | ndlp_fdmi = lpfc_enable_node(vport, | |
6773 | ndlp_fdmi, | |
6774 | NLP_STE_NPR_NODE); | |
6775 | ||
92d7f7b0 | 6776 | if (ndlp_fdmi) { |
58da1ffb | 6777 | lpfc_nlp_set_state(vport, ndlp_fdmi, |
63e801ce JS |
6778 | NLP_STE_PLOGI_ISSUE); |
6779 | lpfc_issue_els_plogi(vport, ndlp_fdmi->nlp_DID, 0); | |
92d7f7b0 JS |
6780 | } |
6781 | } | |
92d7f7b0 JS |
6782 | } |
6783 | ||
e59058c4 | 6784 | /** |
3621a710 | 6785 | * lpfc_cmpl_reg_new_vport - Completion callback function to register new vport |
e59058c4 JS |
6786 | * @phba: pointer to lpfc hba data structure. |
6787 | * @pmb: pointer to the driver internal queue element for mailbox command. | |
6788 | * | |
6789 | * This routine is the completion callback function to register new vport | |
6790 | * mailbox command. If the new vport mailbox command completes successfully, | |
6791 | * the fabric registration login shall be performed on physical port (the | |
6792 | * new vport created is actually a physical port, with VPI 0) or the port | |
6793 | * login to Name Server for State Change Request (SCR) will be performed | |
6794 | * on virtual port (real virtual port, with VPI greater than 0). | |
6795 | **/ | |
92d7f7b0 JS |
6796 | static void |
6797 | lpfc_cmpl_reg_new_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) | |
6798 | { | |
6799 | struct lpfc_vport *vport = pmb->vport; | |
6800 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
6801 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; | |
04c68496 | 6802 | MAILBOX_t *mb = &pmb->u.mb; |
695a814e | 6803 | int rc; |
92d7f7b0 | 6804 | |
09372820 | 6805 | spin_lock_irq(shost->host_lock); |
92d7f7b0 | 6806 | vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; |
09372820 | 6807 | spin_unlock_irq(shost->host_lock); |
92d7f7b0 JS |
6808 | |
6809 | if (mb->mbxStatus) { | |
e8b62011 | 6810 | lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, |
38b92ef8 JS |
6811 | "0915 Register VPI failed : Status: x%x" |
6812 | " upd bit: x%x \n", mb->mbxStatus, | |
6813 | mb->un.varRegVpi.upd); | |
6814 | if (phba->sli_rev == LPFC_SLI_REV4 && | |
6815 | mb->un.varRegVpi.upd) | |
6816 | goto mbox_err_exit ; | |
92d7f7b0 JS |
6817 | |
6818 | switch (mb->mbxStatus) { | |
6819 | case 0x11: /* unsupported feature */ | |
6820 | case 0x9603: /* max_vpi exceeded */ | |
7f5f3d0d | 6821 | case 0x9602: /* Link event since CLEAR_LA */ |
92d7f7b0 JS |
6822 | /* giving up on vport registration */ |
6823 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
6824 | spin_lock_irq(shost->host_lock); | |
6825 | vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
6826 | spin_unlock_irq(shost->host_lock); | |
6827 | lpfc_can_disctmo(vport); | |
6828 | break; | |
695a814e JS |
6829 | /* If reg_vpi fail with invalid VPI status, re-init VPI */ |
6830 | case 0x20: | |
6831 | spin_lock_irq(shost->host_lock); | |
6832 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; | |
6833 | spin_unlock_irq(shost->host_lock); | |
6834 | lpfc_init_vpi(phba, pmb, vport->vpi); | |
6835 | pmb->vport = vport; | |
6836 | pmb->mbox_cmpl = lpfc_init_vpi_cmpl; | |
6837 | rc = lpfc_sli_issue_mbox(phba, pmb, | |
6838 | MBX_NOWAIT); | |
6839 | if (rc == MBX_NOT_FINISHED) { | |
6840 | lpfc_printf_vlog(vport, | |
6841 | KERN_ERR, LOG_MBOX, | |
6842 | "2732 Failed to issue INIT_VPI" | |
6843 | " mailbox command\n"); | |
6844 | } else { | |
6845 | lpfc_nlp_put(ndlp); | |
6846 | return; | |
6847 | } | |
6848 | ||
92d7f7b0 JS |
6849 | default: |
6850 | /* Try to recover from this error */ | |
5af5eee7 JS |
6851 | if (phba->sli_rev == LPFC_SLI_REV4) |
6852 | lpfc_sli4_unreg_all_rpis(vport); | |
92d7f7b0 | 6853 | lpfc_mbx_unreg_vpi(vport); |
09372820 | 6854 | spin_lock_irq(shost->host_lock); |
92d7f7b0 | 6855 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; |
09372820 | 6856 | spin_unlock_irq(shost->host_lock); |
4b40c59e JS |
6857 | if (vport->port_type == LPFC_PHYSICAL_PORT |
6858 | && !(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) | |
76a95d75 | 6859 | lpfc_issue_init_vfi(vport); |
7f5f3d0d JS |
6860 | else |
6861 | lpfc_initial_fdisc(vport); | |
92d7f7b0 JS |
6862 | break; |
6863 | } | |
92d7f7b0 | 6864 | } else { |
695a814e | 6865 | spin_lock_irq(shost->host_lock); |
1987807d | 6866 | vport->vpi_state |= LPFC_VPI_REGISTERED; |
695a814e JS |
6867 | spin_unlock_irq(shost->host_lock); |
6868 | if (vport == phba->pport) { | |
6fb120a7 JS |
6869 | if (phba->sli_rev < LPFC_SLI_REV4) |
6870 | lpfc_issue_fabric_reglogin(vport); | |
695a814e | 6871 | else { |
fc2b989b JS |
6872 | /* |
6873 | * If the physical port is instantiated using | |
6874 | * FDISC, do not start vport discovery. | |
6875 | */ | |
6876 | if (vport->port_state != LPFC_FDISC) | |
6877 | lpfc_start_fdiscs(phba); | |
695a814e JS |
6878 | lpfc_do_scr_ns_plogi(phba, vport); |
6879 | } | |
6880 | } else | |
92d7f7b0 JS |
6881 | lpfc_do_scr_ns_plogi(phba, vport); |
6882 | } | |
38b92ef8 | 6883 | mbox_err_exit: |
fa4066b6 JS |
6884 | /* Now, we decrement the ndlp reference count held for this |
6885 | * callback function | |
6886 | */ | |
6887 | lpfc_nlp_put(ndlp); | |
6888 | ||
92d7f7b0 JS |
6889 | mempool_free(pmb, phba->mbox_mem_pool); |
6890 | return; | |
6891 | } | |
6892 | ||
e59058c4 | 6893 | /** |
3621a710 | 6894 | * lpfc_register_new_vport - Register a new vport with a HBA |
e59058c4 JS |
6895 | * @phba: pointer to lpfc hba data structure. |
6896 | * @vport: pointer to a host virtual N_Port data structure. | |
6897 | * @ndlp: pointer to a node-list data structure. | |
6898 | * | |
6899 | * This routine registers the @vport as a new virtual port with a HBA. | |
6900 | * It is done through a registering vpi mailbox command. | |
6901 | **/ | |
695a814e | 6902 | void |
92d7f7b0 JS |
6903 | lpfc_register_new_vport(struct lpfc_hba *phba, struct lpfc_vport *vport, |
6904 | struct lpfc_nodelist *ndlp) | |
6905 | { | |
09372820 | 6906 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
92d7f7b0 JS |
6907 | LPFC_MBOXQ_t *mbox; |
6908 | ||
6909 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
6910 | if (mbox) { | |
6fb120a7 | 6911 | lpfc_reg_vpi(vport, mbox); |
92d7f7b0 JS |
6912 | mbox->vport = vport; |
6913 | mbox->context2 = lpfc_nlp_get(ndlp); | |
6914 | mbox->mbox_cmpl = lpfc_cmpl_reg_new_vport; | |
0b727fea | 6915 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) |
92d7f7b0 | 6916 | == MBX_NOT_FINISHED) { |
fa4066b6 JS |
6917 | /* mailbox command not success, decrement ndlp |
6918 | * reference count for this command | |
6919 | */ | |
6920 | lpfc_nlp_put(ndlp); | |
92d7f7b0 | 6921 | mempool_free(mbox, phba->mbox_mem_pool); |
92d7f7b0 | 6922 | |
e8b62011 JS |
6923 | lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, |
6924 | "0253 Register VPI: Can't send mbox\n"); | |
fa4066b6 | 6925 | goto mbox_err_exit; |
92d7f7b0 JS |
6926 | } |
6927 | } else { | |
e8b62011 JS |
6928 | lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, |
6929 | "0254 Register VPI: no memory\n"); | |
fa4066b6 | 6930 | goto mbox_err_exit; |
92d7f7b0 | 6931 | } |
fa4066b6 JS |
6932 | return; |
6933 | ||
6934 | mbox_err_exit: | |
6935 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
6936 | spin_lock_irq(shost->host_lock); | |
6937 | vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; | |
6938 | spin_unlock_irq(shost->host_lock); | |
6939 | return; | |
92d7f7b0 JS |
6940 | } |
6941 | ||
695a814e | 6942 | /** |
0c9ab6f5 | 6943 | * lpfc_cancel_all_vport_retry_delay_timer - Cancel all vport retry delay timer |
695a814e JS |
6944 | * @phba: pointer to lpfc hba data structure. |
6945 | * | |
0c9ab6f5 | 6946 | * This routine cancels the retry delay timers to all the vports. |
695a814e JS |
6947 | **/ |
6948 | void | |
0c9ab6f5 | 6949 | lpfc_cancel_all_vport_retry_delay_timer(struct lpfc_hba *phba) |
695a814e JS |
6950 | { |
6951 | struct lpfc_vport **vports; | |
6952 | struct lpfc_nodelist *ndlp; | |
695a814e | 6953 | uint32_t link_state; |
0c9ab6f5 | 6954 | int i; |
695a814e JS |
6955 | |
6956 | /* Treat this failure as linkdown for all vports */ | |
6957 | link_state = phba->link_state; | |
6958 | lpfc_linkdown(phba); | |
6959 | phba->link_state = link_state; | |
6960 | ||
6961 | vports = lpfc_create_vport_work_array(phba); | |
6962 | ||
6963 | if (vports) { | |
6964 | for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { | |
6965 | ndlp = lpfc_findnode_did(vports[i], Fabric_DID); | |
6966 | if (ndlp) | |
6967 | lpfc_cancel_retry_delay_tmo(vports[i], ndlp); | |
6968 | lpfc_els_flush_cmd(vports[i]); | |
6969 | } | |
6970 | lpfc_destroy_vport_work_array(phba, vports); | |
6971 | } | |
0c9ab6f5 JS |
6972 | } |
6973 | ||
6974 | /** | |
6975 | * lpfc_retry_pport_discovery - Start timer to retry FLOGI. | |
6976 | * @phba: pointer to lpfc hba data structure. | |
6977 | * | |
6978 | * This routine abort all pending discovery commands and | |
6979 | * start a timer to retry FLOGI for the physical port | |
6980 | * discovery. | |
6981 | **/ | |
6982 | void | |
6983 | lpfc_retry_pport_discovery(struct lpfc_hba *phba) | |
6984 | { | |
6985 | struct lpfc_nodelist *ndlp; | |
6986 | struct Scsi_Host *shost; | |
6987 | ||
6988 | /* Cancel the all vports retry delay retry timers */ | |
6989 | lpfc_cancel_all_vport_retry_delay_timer(phba); | |
695a814e JS |
6990 | |
6991 | /* If fabric require FLOGI, then re-instantiate physical login */ | |
6992 | ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); | |
6993 | if (!ndlp) | |
6994 | return; | |
6995 | ||
695a814e JS |
6996 | shost = lpfc_shost_from_vport(phba->pport); |
6997 | mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ); | |
6998 | spin_lock_irq(shost->host_lock); | |
6999 | ndlp->nlp_flag |= NLP_DELAY_TMO; | |
7000 | spin_unlock_irq(shost->host_lock); | |
7001 | ndlp->nlp_last_elscmd = ELS_CMD_FLOGI; | |
7002 | phba->pport->port_state = LPFC_FLOGI; | |
7003 | return; | |
7004 | } | |
7005 | ||
7006 | /** | |
7007 | * lpfc_fabric_login_reqd - Check if FLOGI required. | |
7008 | * @phba: pointer to lpfc hba data structure. | |
7009 | * @cmdiocb: pointer to FDISC command iocb. | |
7010 | * @rspiocb: pointer to FDISC response iocb. | |
7011 | * | |
7012 | * This routine checks if a FLOGI is reguired for FDISC | |
7013 | * to succeed. | |
7014 | **/ | |
7015 | static int | |
7016 | lpfc_fabric_login_reqd(struct lpfc_hba *phba, | |
7017 | struct lpfc_iocbq *cmdiocb, | |
7018 | struct lpfc_iocbq *rspiocb) | |
7019 | { | |
7020 | ||
7021 | if ((rspiocb->iocb.ulpStatus != IOSTAT_FABRIC_RJT) || | |
7022 | (rspiocb->iocb.un.ulpWord[4] != RJT_LOGIN_REQUIRED)) | |
7023 | return 0; | |
7024 | else | |
7025 | return 1; | |
7026 | } | |
7027 | ||
e59058c4 | 7028 | /** |
3621a710 | 7029 | * lpfc_cmpl_els_fdisc - Completion function for fdisc iocb command |
e59058c4 JS |
7030 | * @phba: pointer to lpfc hba data structure. |
7031 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
7032 | * @rspiocb: pointer to lpfc response iocb data structure. | |
7033 | * | |
7034 | * This routine is the completion callback function to a Fabric Discover | |
7035 | * (FDISC) ELS command. Since all the FDISC ELS commands are issued | |
7036 | * single threaded, each FDISC completion callback function will reset | |
7037 | * the discovery timer for all vports such that the timers will not get | |
7038 | * unnecessary timeout. The function checks the FDISC IOCB status. If error | |
7039 | * detected, the vport will be set to FC_VPORT_FAILED state. Otherwise,the | |
7040 | * vport will set to FC_VPORT_ACTIVE state. It then checks whether the DID | |
7041 | * assigned to the vport has been changed with the completion of the FDISC | |
7042 | * command. If so, both RPI (Remote Port Index) and VPI (Virtual Port Index) | |
7043 | * are unregistered from the HBA, and then the lpfc_register_new_vport() | |
7044 | * routine is invoked to register new vport with the HBA. Otherwise, the | |
7045 | * lpfc_do_scr_ns_plogi() routine is invoked to issue a PLOGI to the Name | |
7046 | * Server for State Change Request (SCR). | |
7047 | **/ | |
92d7f7b0 JS |
7048 | static void |
7049 | lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
7050 | struct lpfc_iocbq *rspiocb) | |
7051 | { | |
7052 | struct lpfc_vport *vport = cmdiocb->vport; | |
7053 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
7054 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
7055 | struct lpfc_nodelist *np; | |
7056 | struct lpfc_nodelist *next_np; | |
7057 | IOCB_t *irsp = &rspiocb->iocb; | |
7058 | struct lpfc_iocbq *piocb; | |
92494144 JS |
7059 | struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp; |
7060 | struct serv_parm *sp; | |
7061 | uint8_t fabric_param_changed; | |
92d7f7b0 | 7062 | |
e8b62011 JS |
7063 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
7064 | "0123 FDISC completes. x%x/x%x prevDID: x%x\n", | |
7065 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
7066 | vport->fc_prevDID); | |
92d7f7b0 JS |
7067 | /* Since all FDISCs are being single threaded, we |
7068 | * must reset the discovery timer for ALL vports | |
7069 | * waiting to send FDISC when one completes. | |
7070 | */ | |
7071 | list_for_each_entry(piocb, &phba->fabric_iocb_list, list) { | |
7072 | lpfc_set_disctmo(piocb->vport); | |
7073 | } | |
7074 | ||
858c9f6c JS |
7075 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
7076 | "FDISC cmpl: status:x%x/x%x prevdid:x%x", | |
7077 | irsp->ulpStatus, irsp->un.ulpWord[4], vport->fc_prevDID); | |
7078 | ||
92d7f7b0 | 7079 | if (irsp->ulpStatus) { |
695a814e JS |
7080 | |
7081 | if (lpfc_fabric_login_reqd(phba, cmdiocb, rspiocb)) { | |
7082 | lpfc_retry_pport_discovery(phba); | |
7083 | goto out; | |
7084 | } | |
7085 | ||
92d7f7b0 JS |
7086 | /* Check for retry */ |
7087 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) | |
7088 | goto out; | |
92d7f7b0 | 7089 | /* FDISC failed */ |
e8b62011 | 7090 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
d7c255b2 | 7091 | "0126 FDISC failed. (%d/%d)\n", |
e8b62011 | 7092 | irsp->ulpStatus, irsp->un.ulpWord[4]); |
d7c255b2 JS |
7093 | goto fdisc_failed; |
7094 | } | |
d7c255b2 | 7095 | spin_lock_irq(shost->host_lock); |
695a814e | 7096 | vport->fc_flag &= ~FC_VPORT_CVL_RCVD; |
4b40c59e | 7097 | vport->fc_flag &= ~FC_VPORT_LOGO_RCVD; |
d7c255b2 | 7098 | vport->fc_flag |= FC_FABRIC; |
76a95d75 | 7099 | if (vport->phba->fc_topology == LPFC_TOPOLOGY_LOOP) |
d7c255b2 JS |
7100 | vport->fc_flag |= FC_PUBLIC_LOOP; |
7101 | spin_unlock_irq(shost->host_lock); | |
92d7f7b0 | 7102 | |
d7c255b2 JS |
7103 | vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID; |
7104 | lpfc_vport_set_state(vport, FC_VPORT_ACTIVE); | |
92494144 JS |
7105 | prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); |
7106 | sp = prsp->virt + sizeof(uint32_t); | |
7107 | fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp); | |
7108 | memcpy(&vport->fabric_portname, &sp->portName, | |
7109 | sizeof(struct lpfc_name)); | |
7110 | memcpy(&vport->fabric_nodename, &sp->nodeName, | |
7111 | sizeof(struct lpfc_name)); | |
7112 | if (fabric_param_changed && | |
d7c255b2 JS |
7113 | !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { |
7114 | /* If our NportID changed, we need to ensure all | |
7115 | * remaining NPORTs get unreg_login'ed so we can | |
7116 | * issue unreg_vpi. | |
7117 | */ | |
7118 | list_for_each_entry_safe(np, next_np, | |
7119 | &vport->fc_nodes, nlp_listp) { | |
7120 | if (!NLP_CHK_NODE_ACT(ndlp) || | |
7121 | (np->nlp_state != NLP_STE_NPR_NODE) || | |
7122 | !(np->nlp_flag & NLP_NPR_ADISC)) | |
7123 | continue; | |
09372820 | 7124 | spin_lock_irq(shost->host_lock); |
d7c255b2 | 7125 | np->nlp_flag &= ~NLP_NPR_ADISC; |
09372820 | 7126 | spin_unlock_irq(shost->host_lock); |
d7c255b2 | 7127 | lpfc_unreg_rpi(vport, np); |
92d7f7b0 | 7128 | } |
78730cfe | 7129 | lpfc_cleanup_pending_mbox(vport); |
5af5eee7 JS |
7130 | |
7131 | if (phba->sli_rev == LPFC_SLI_REV4) | |
7132 | lpfc_sli4_unreg_all_rpis(vport); | |
7133 | ||
d7c255b2 JS |
7134 | lpfc_mbx_unreg_vpi(vport); |
7135 | spin_lock_irq(shost->host_lock); | |
7136 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; | |
0f65ff68 JS |
7137 | if (phba->sli_rev == LPFC_SLI_REV4) |
7138 | vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; | |
4b40c59e JS |
7139 | else |
7140 | vport->fc_flag |= FC_LOGO_RCVD_DID_CHNG; | |
d7c255b2 | 7141 | spin_unlock_irq(shost->host_lock); |
38b92ef8 JS |
7142 | } else if ((phba->sli_rev == LPFC_SLI_REV4) && |
7143 | !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { | |
7144 | /* | |
7145 | * Driver needs to re-reg VPI in order for f/w | |
7146 | * to update the MAC address. | |
7147 | */ | |
7148 | lpfc_register_new_vport(phba, vport, ndlp); | |
5ac6b303 | 7149 | goto out; |
92d7f7b0 JS |
7150 | } |
7151 | ||
ecfd03c6 JS |
7152 | if (vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI) |
7153 | lpfc_issue_init_vpi(vport); | |
7154 | else if (vport->fc_flag & FC_VPORT_NEEDS_REG_VPI) | |
d7c255b2 JS |
7155 | lpfc_register_new_vport(phba, vport, ndlp); |
7156 | else | |
7157 | lpfc_do_scr_ns_plogi(phba, vport); | |
7158 | goto out; | |
7159 | fdisc_failed: | |
7160 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
7161 | /* Cancel discovery timer */ | |
7162 | lpfc_can_disctmo(vport); | |
7163 | lpfc_nlp_put(ndlp); | |
92d7f7b0 JS |
7164 | out: |
7165 | lpfc_els_free_iocb(phba, cmdiocb); | |
7166 | } | |
7167 | ||
e59058c4 | 7168 | /** |
3621a710 | 7169 | * lpfc_issue_els_fdisc - Issue a fdisc iocb command |
e59058c4 JS |
7170 | * @vport: pointer to a virtual N_Port data structure. |
7171 | * @ndlp: pointer to a node-list data structure. | |
7172 | * @retry: number of retries to the command IOCB. | |
7173 | * | |
7174 | * This routine prepares and issues a Fabric Discover (FDISC) IOCB to | |
7175 | * a remote node (@ndlp) off a @vport. It uses the lpfc_issue_fabric_iocb() | |
7176 | * routine to issue the IOCB, which makes sure only one outstanding fabric | |
7177 | * IOCB will be sent off HBA at any given time. | |
7178 | * | |
7179 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
7180 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
7181 | * will be stored into the context1 field of the IOCB for the completion | |
7182 | * callback function to the FDISC ELS command. | |
7183 | * | |
7184 | * Return code | |
7185 | * 0 - Successfully issued fdisc iocb command | |
7186 | * 1 - Failed to issue fdisc iocb command | |
7187 | **/ | |
a6ababd2 | 7188 | static int |
92d7f7b0 JS |
7189 | lpfc_issue_els_fdisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
7190 | uint8_t retry) | |
7191 | { | |
7192 | struct lpfc_hba *phba = vport->phba; | |
7193 | IOCB_t *icmd; | |
7194 | struct lpfc_iocbq *elsiocb; | |
7195 | struct serv_parm *sp; | |
7196 | uint8_t *pcmd; | |
7197 | uint16_t cmdsize; | |
7198 | int did = ndlp->nlp_DID; | |
7199 | int rc; | |
92d7f7b0 | 7200 | |
5ffc266e | 7201 | vport->port_state = LPFC_FDISC; |
92d7f7b0 JS |
7202 | cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); |
7203 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did, | |
7204 | ELS_CMD_FDISC); | |
7205 | if (!elsiocb) { | |
92d7f7b0 | 7206 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
e8b62011 JS |
7207 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
7208 | "0255 Issue FDISC: no IOCB\n"); | |
92d7f7b0 JS |
7209 | return 1; |
7210 | } | |
7211 | ||
7212 | icmd = &elsiocb->iocb; | |
7213 | icmd->un.elsreq64.myID = 0; | |
7214 | icmd->un.elsreq64.fl = 1; | |
7215 | ||
4042629e JS |
7216 | if ((phba->sli_rev == LPFC_SLI_REV4) && |
7217 | (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == | |
7218 | LPFC_SLI_INTF_IF_TYPE_0)) { | |
f1126688 JS |
7219 | /* FDISC needs to be 1 for WQE VPI */ |
7220 | elsiocb->iocb.ulpCt_h = (SLI4_CT_VPI >> 1) & 1; | |
7221 | elsiocb->iocb.ulpCt_l = SLI4_CT_VPI & 1 ; | |
7222 | /* Set the ulpContext to the vpi */ | |
7223 | elsiocb->iocb.ulpContext = vport->vpi + phba->vpi_base; | |
7224 | } else { | |
7225 | /* For FDISC, Let FDISC rsp set the NPortID for this VPI */ | |
7226 | icmd->ulpCt_h = 1; | |
7227 | icmd->ulpCt_l = 0; | |
7228 | } | |
92d7f7b0 JS |
7229 | |
7230 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
7231 | *((uint32_t *) (pcmd)) = ELS_CMD_FDISC; | |
7232 | pcmd += sizeof(uint32_t); /* CSP Word 1 */ | |
7233 | memcpy(pcmd, &vport->phba->pport->fc_sparam, sizeof(struct serv_parm)); | |
7234 | sp = (struct serv_parm *) pcmd; | |
7235 | /* Setup CSPs accordingly for Fabric */ | |
7236 | sp->cmn.e_d_tov = 0; | |
7237 | sp->cmn.w2.r_a_tov = 0; | |
7238 | sp->cls1.classValid = 0; | |
7239 | sp->cls2.seqDelivery = 1; | |
7240 | sp->cls3.seqDelivery = 1; | |
7241 | ||
7242 | pcmd += sizeof(uint32_t); /* CSP Word 2 */ | |
7243 | pcmd += sizeof(uint32_t); /* CSP Word 3 */ | |
7244 | pcmd += sizeof(uint32_t); /* CSP Word 4 */ | |
7245 | pcmd += sizeof(uint32_t); /* Port Name */ | |
7246 | memcpy(pcmd, &vport->fc_portname, 8); | |
7247 | pcmd += sizeof(uint32_t); /* Node Name */ | |
7248 | pcmd += sizeof(uint32_t); /* Node Name */ | |
7249 | memcpy(pcmd, &vport->fc_nodename, 8); | |
7250 | ||
7251 | lpfc_set_disctmo(vport); | |
7252 | ||
7253 | phba->fc_stat.elsXmitFDISC++; | |
7254 | elsiocb->iocb_cmpl = lpfc_cmpl_els_fdisc; | |
7255 | ||
858c9f6c JS |
7256 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
7257 | "Issue FDISC: did:x%x", | |
7258 | did, 0, 0); | |
7259 | ||
92d7f7b0 JS |
7260 | rc = lpfc_issue_fabric_iocb(phba, elsiocb); |
7261 | if (rc == IOCB_ERROR) { | |
7262 | lpfc_els_free_iocb(phba, elsiocb); | |
92d7f7b0 | 7263 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
e8b62011 JS |
7264 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
7265 | "0256 Issue FDISC: Cannot send IOCB\n"); | |
92d7f7b0 JS |
7266 | return 1; |
7267 | } | |
7268 | lpfc_vport_set_state(vport, FC_VPORT_INITIALIZING); | |
92d7f7b0 JS |
7269 | return 0; |
7270 | } | |
7271 | ||
e59058c4 | 7272 | /** |
3621a710 | 7273 | * lpfc_cmpl_els_npiv_logo - Completion function with vport logo |
e59058c4 JS |
7274 | * @phba: pointer to lpfc hba data structure. |
7275 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
7276 | * @rspiocb: pointer to lpfc response iocb data structure. | |
7277 | * | |
7278 | * This routine is the completion callback function to the issuing of a LOGO | |
7279 | * ELS command off a vport. It frees the command IOCB and then decrement the | |
7280 | * reference count held on ndlp for this completion function, indicating that | |
7281 | * the reference to the ndlp is no long needed. Note that the | |
7282 | * lpfc_els_free_iocb() routine decrements the ndlp reference held for this | |
7283 | * callback function and an additional explicit ndlp reference decrementation | |
7284 | * will trigger the actual release of the ndlp. | |
7285 | **/ | |
92d7f7b0 JS |
7286 | static void |
7287 | lpfc_cmpl_els_npiv_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
7288 | struct lpfc_iocbq *rspiocb) | |
7289 | { | |
7290 | struct lpfc_vport *vport = cmdiocb->vport; | |
858c9f6c | 7291 | IOCB_t *irsp; |
e47c9093 JS |
7292 | struct lpfc_nodelist *ndlp; |
7293 | ndlp = (struct lpfc_nodelist *)cmdiocb->context1; | |
858c9f6c JS |
7294 | |
7295 | irsp = &rspiocb->iocb; | |
7296 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, | |
7297 | "LOGO npiv cmpl: status:x%x/x%x did:x%x", | |
7298 | irsp->ulpStatus, irsp->un.ulpWord[4], irsp->un.rcvels.remoteID); | |
92d7f7b0 JS |
7299 | |
7300 | lpfc_els_free_iocb(phba, cmdiocb); | |
7301 | vport->unreg_vpi_cmpl = VPORT_ERROR; | |
e47c9093 JS |
7302 | |
7303 | /* Trigger the release of the ndlp after logo */ | |
7304 | lpfc_nlp_put(ndlp); | |
92d7f7b0 JS |
7305 | } |
7306 | ||
e59058c4 | 7307 | /** |
3621a710 | 7308 | * lpfc_issue_els_npiv_logo - Issue a logo off a vport |
e59058c4 JS |
7309 | * @vport: pointer to a virtual N_Port data structure. |
7310 | * @ndlp: pointer to a node-list data structure. | |
7311 | * | |
7312 | * This routine issues a LOGO ELS command to an @ndlp off a @vport. | |
7313 | * | |
7314 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
7315 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
7316 | * will be stored into the context1 field of the IOCB for the completion | |
7317 | * callback function to the LOGO ELS command. | |
7318 | * | |
7319 | * Return codes | |
7320 | * 0 - Successfully issued logo off the @vport | |
7321 | * 1 - Failed to issue logo off the @vport | |
7322 | **/ | |
92d7f7b0 JS |
7323 | int |
7324 | lpfc_issue_els_npiv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) | |
7325 | { | |
7326 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
7327 | struct lpfc_hba *phba = vport->phba; | |
92d7f7b0 JS |
7328 | IOCB_t *icmd; |
7329 | struct lpfc_iocbq *elsiocb; | |
7330 | uint8_t *pcmd; | |
7331 | uint16_t cmdsize; | |
7332 | ||
7333 | cmdsize = 2 * sizeof(uint32_t) + sizeof(struct lpfc_name); | |
7334 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, ndlp->nlp_DID, | |
7335 | ELS_CMD_LOGO); | |
7336 | if (!elsiocb) | |
7337 | return 1; | |
7338 | ||
7339 | icmd = &elsiocb->iocb; | |
7340 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
7341 | *((uint32_t *) (pcmd)) = ELS_CMD_LOGO; | |
7342 | pcmd += sizeof(uint32_t); | |
7343 | ||
7344 | /* Fill in LOGO payload */ | |
7345 | *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID); | |
7346 | pcmd += sizeof(uint32_t); | |
7347 | memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name)); | |
7348 | ||
858c9f6c JS |
7349 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
7350 | "Issue LOGO npiv did:x%x flg:x%x", | |
7351 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
7352 | ||
92d7f7b0 JS |
7353 | elsiocb->iocb_cmpl = lpfc_cmpl_els_npiv_logo; |
7354 | spin_lock_irq(shost->host_lock); | |
7355 | ndlp->nlp_flag |= NLP_LOGO_SND; | |
7356 | spin_unlock_irq(shost->host_lock); | |
3772a991 JS |
7357 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
7358 | IOCB_ERROR) { | |
92d7f7b0 JS |
7359 | spin_lock_irq(shost->host_lock); |
7360 | ndlp->nlp_flag &= ~NLP_LOGO_SND; | |
7361 | spin_unlock_irq(shost->host_lock); | |
7362 | lpfc_els_free_iocb(phba, elsiocb); | |
7363 | return 1; | |
7364 | } | |
7365 | return 0; | |
7366 | } | |
7367 | ||
e59058c4 | 7368 | /** |
3621a710 | 7369 | * lpfc_fabric_block_timeout - Handler function to the fabric block timer |
e59058c4 JS |
7370 | * @ptr: holder for the timer function associated data. |
7371 | * | |
7372 | * This routine is invoked by the fabric iocb block timer after | |
7373 | * timeout. It posts the fabric iocb block timeout event by setting the | |
7374 | * WORKER_FABRIC_BLOCK_TMO bit to work port event bitmap and then invokes | |
7375 | * lpfc_worker_wake_up() routine to wake up the worker thread. It is for | |
7376 | * the worker thread to invoke the lpfc_unblock_fabric_iocbs() on the | |
7377 | * posted event WORKER_FABRIC_BLOCK_TMO. | |
7378 | **/ | |
92d7f7b0 JS |
7379 | void |
7380 | lpfc_fabric_block_timeout(unsigned long ptr) | |
7381 | { | |
7382 | struct lpfc_hba *phba = (struct lpfc_hba *) ptr; | |
7383 | unsigned long iflags; | |
7384 | uint32_t tmo_posted; | |
5e9d9b82 | 7385 | |
92d7f7b0 JS |
7386 | spin_lock_irqsave(&phba->pport->work_port_lock, iflags); |
7387 | tmo_posted = phba->pport->work_port_events & WORKER_FABRIC_BLOCK_TMO; | |
7388 | if (!tmo_posted) | |
7389 | phba->pport->work_port_events |= WORKER_FABRIC_BLOCK_TMO; | |
7390 | spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags); | |
7391 | ||
5e9d9b82 JS |
7392 | if (!tmo_posted) |
7393 | lpfc_worker_wake_up(phba); | |
7394 | return; | |
92d7f7b0 JS |
7395 | } |
7396 | ||
e59058c4 | 7397 | /** |
3621a710 | 7398 | * lpfc_resume_fabric_iocbs - Issue a fabric iocb from driver internal list |
e59058c4 JS |
7399 | * @phba: pointer to lpfc hba data structure. |
7400 | * | |
7401 | * This routine issues one fabric iocb from the driver internal list to | |
7402 | * the HBA. It first checks whether it's ready to issue one fabric iocb to | |
7403 | * the HBA (whether there is no outstanding fabric iocb). If so, it shall | |
7404 | * remove one pending fabric iocb from the driver internal list and invokes | |
7405 | * lpfc_sli_issue_iocb() routine to send the fabric iocb to the HBA. | |
7406 | **/ | |
92d7f7b0 JS |
7407 | static void |
7408 | lpfc_resume_fabric_iocbs(struct lpfc_hba *phba) | |
7409 | { | |
7410 | struct lpfc_iocbq *iocb; | |
7411 | unsigned long iflags; | |
7412 | int ret; | |
92d7f7b0 JS |
7413 | IOCB_t *cmd; |
7414 | ||
7415 | repeat: | |
7416 | iocb = NULL; | |
7417 | spin_lock_irqsave(&phba->hbalock, iflags); | |
7f5f3d0d | 7418 | /* Post any pending iocb to the SLI layer */ |
92d7f7b0 JS |
7419 | if (atomic_read(&phba->fabric_iocb_count) == 0) { |
7420 | list_remove_head(&phba->fabric_iocb_list, iocb, typeof(*iocb), | |
7421 | list); | |
7422 | if (iocb) | |
7f5f3d0d | 7423 | /* Increment fabric iocb count to hold the position */ |
92d7f7b0 JS |
7424 | atomic_inc(&phba->fabric_iocb_count); |
7425 | } | |
7426 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
7427 | if (iocb) { | |
7428 | iocb->fabric_iocb_cmpl = iocb->iocb_cmpl; | |
7429 | iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb; | |
7430 | iocb->iocb_flag |= LPFC_IO_FABRIC; | |
7431 | ||
858c9f6c JS |
7432 | lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD, |
7433 | "Fabric sched1: ste:x%x", | |
7434 | iocb->vport->port_state, 0, 0); | |
7435 | ||
3772a991 | 7436 | ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0); |
92d7f7b0 JS |
7437 | |
7438 | if (ret == IOCB_ERROR) { | |
7439 | iocb->iocb_cmpl = iocb->fabric_iocb_cmpl; | |
7440 | iocb->fabric_iocb_cmpl = NULL; | |
7441 | iocb->iocb_flag &= ~LPFC_IO_FABRIC; | |
7442 | cmd = &iocb->iocb; | |
7443 | cmd->ulpStatus = IOSTAT_LOCAL_REJECT; | |
7444 | cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; | |
7445 | iocb->iocb_cmpl(phba, iocb, iocb); | |
7446 | ||
7447 | atomic_dec(&phba->fabric_iocb_count); | |
7448 | goto repeat; | |
7449 | } | |
7450 | } | |
7451 | ||
7452 | return; | |
7453 | } | |
7454 | ||
e59058c4 | 7455 | /** |
3621a710 | 7456 | * lpfc_unblock_fabric_iocbs - Unblock issuing fabric iocb command |
e59058c4 JS |
7457 | * @phba: pointer to lpfc hba data structure. |
7458 | * | |
7459 | * This routine unblocks the issuing fabric iocb command. The function | |
7460 | * will clear the fabric iocb block bit and then invoke the routine | |
7461 | * lpfc_resume_fabric_iocbs() to issue one of the pending fabric iocb | |
7462 | * from the driver internal fabric iocb list. | |
7463 | **/ | |
92d7f7b0 JS |
7464 | void |
7465 | lpfc_unblock_fabric_iocbs(struct lpfc_hba *phba) | |
7466 | { | |
7467 | clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); | |
7468 | ||
7469 | lpfc_resume_fabric_iocbs(phba); | |
7470 | return; | |
7471 | } | |
7472 | ||
e59058c4 | 7473 | /** |
3621a710 | 7474 | * lpfc_block_fabric_iocbs - Block issuing fabric iocb command |
e59058c4 JS |
7475 | * @phba: pointer to lpfc hba data structure. |
7476 | * | |
7477 | * This routine blocks the issuing fabric iocb for a specified amount of | |
7478 | * time (currently 100 ms). This is done by set the fabric iocb block bit | |
7479 | * and set up a timeout timer for 100ms. When the block bit is set, no more | |
7480 | * fabric iocb will be issued out of the HBA. | |
7481 | **/ | |
92d7f7b0 JS |
7482 | static void |
7483 | lpfc_block_fabric_iocbs(struct lpfc_hba *phba) | |
7484 | { | |
7485 | int blocked; | |
7486 | ||
7487 | blocked = test_and_set_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); | |
7f5f3d0d | 7488 | /* Start a timer to unblock fabric iocbs after 100ms */ |
92d7f7b0 JS |
7489 | if (!blocked) |
7490 | mod_timer(&phba->fabric_block_timer, jiffies + HZ/10 ); | |
7491 | ||
7492 | return; | |
7493 | } | |
7494 | ||
e59058c4 | 7495 | /** |
3621a710 | 7496 | * lpfc_cmpl_fabric_iocb - Completion callback function for fabric iocb |
e59058c4 JS |
7497 | * @phba: pointer to lpfc hba data structure. |
7498 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
7499 | * @rspiocb: pointer to lpfc response iocb data structure. | |
7500 | * | |
7501 | * This routine is the callback function that is put to the fabric iocb's | |
7502 | * callback function pointer (iocb->iocb_cmpl). The original iocb's callback | |
7503 | * function pointer has been stored in iocb->fabric_iocb_cmpl. This callback | |
7504 | * function first restores and invokes the original iocb's callback function | |
7505 | * and then invokes the lpfc_resume_fabric_iocbs() routine to issue the next | |
7506 | * fabric bound iocb from the driver internal fabric iocb list onto the wire. | |
7507 | **/ | |
92d7f7b0 JS |
7508 | static void |
7509 | lpfc_cmpl_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
7510 | struct lpfc_iocbq *rspiocb) | |
7511 | { | |
7512 | struct ls_rjt stat; | |
7513 | ||
7514 | if ((cmdiocb->iocb_flag & LPFC_IO_FABRIC) != LPFC_IO_FABRIC) | |
7515 | BUG(); | |
7516 | ||
7517 | switch (rspiocb->iocb.ulpStatus) { | |
7518 | case IOSTAT_NPORT_RJT: | |
7519 | case IOSTAT_FABRIC_RJT: | |
7520 | if (rspiocb->iocb.un.ulpWord[4] & RJT_UNAVAIL_TEMP) { | |
7521 | lpfc_block_fabric_iocbs(phba); | |
ed957684 | 7522 | } |
92d7f7b0 JS |
7523 | break; |
7524 | ||
7525 | case IOSTAT_NPORT_BSY: | |
7526 | case IOSTAT_FABRIC_BSY: | |
7527 | lpfc_block_fabric_iocbs(phba); | |
7528 | break; | |
7529 | ||
7530 | case IOSTAT_LS_RJT: | |
7531 | stat.un.lsRjtError = | |
7532 | be32_to_cpu(rspiocb->iocb.un.ulpWord[4]); | |
7533 | if ((stat.un.b.lsRjtRsnCode == LSRJT_UNABLE_TPC) || | |
7534 | (stat.un.b.lsRjtRsnCode == LSRJT_LOGICAL_BSY)) | |
7535 | lpfc_block_fabric_iocbs(phba); | |
7536 | break; | |
7537 | } | |
7538 | ||
7539 | if (atomic_read(&phba->fabric_iocb_count) == 0) | |
7540 | BUG(); | |
7541 | ||
7542 | cmdiocb->iocb_cmpl = cmdiocb->fabric_iocb_cmpl; | |
7543 | cmdiocb->fabric_iocb_cmpl = NULL; | |
7544 | cmdiocb->iocb_flag &= ~LPFC_IO_FABRIC; | |
7545 | cmdiocb->iocb_cmpl(phba, cmdiocb, rspiocb); | |
7546 | ||
7547 | atomic_dec(&phba->fabric_iocb_count); | |
7548 | if (!test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags)) { | |
7f5f3d0d JS |
7549 | /* Post any pending iocbs to HBA */ |
7550 | lpfc_resume_fabric_iocbs(phba); | |
92d7f7b0 JS |
7551 | } |
7552 | } | |
7553 | ||
e59058c4 | 7554 | /** |
3621a710 | 7555 | * lpfc_issue_fabric_iocb - Issue a fabric iocb command |
e59058c4 JS |
7556 | * @phba: pointer to lpfc hba data structure. |
7557 | * @iocb: pointer to lpfc command iocb data structure. | |
7558 | * | |
7559 | * This routine is used as the top-level API for issuing a fabric iocb command | |
7560 | * such as FLOGI and FDISC. To accommodate certain switch fabric, this driver | |
7561 | * function makes sure that only one fabric bound iocb will be outstanding at | |
7562 | * any given time. As such, this function will first check to see whether there | |
7563 | * is already an outstanding fabric iocb on the wire. If so, it will put the | |
7564 | * newly issued iocb onto the driver internal fabric iocb list, waiting to be | |
7565 | * issued later. Otherwise, it will issue the iocb on the wire and update the | |
7566 | * fabric iocb count it indicate that there is one fabric iocb on the wire. | |
7567 | * | |
7568 | * Note, this implementation has a potential sending out fabric IOCBs out of | |
7569 | * order. The problem is caused by the construction of the "ready" boolen does | |
7570 | * not include the condition that the internal fabric IOCB list is empty. As | |
7571 | * such, it is possible a fabric IOCB issued by this routine might be "jump" | |
7572 | * ahead of the fabric IOCBs in the internal list. | |
7573 | * | |
7574 | * Return code | |
7575 | * IOCB_SUCCESS - either fabric iocb put on the list or issued successfully | |
7576 | * IOCB_ERROR - failed to issue fabric iocb | |
7577 | **/ | |
a6ababd2 | 7578 | static int |
92d7f7b0 JS |
7579 | lpfc_issue_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *iocb) |
7580 | { | |
7581 | unsigned long iflags; | |
92d7f7b0 JS |
7582 | int ready; |
7583 | int ret; | |
7584 | ||
7585 | if (atomic_read(&phba->fabric_iocb_count) > 1) | |
7586 | BUG(); | |
7587 | ||
7588 | spin_lock_irqsave(&phba->hbalock, iflags); | |
7589 | ready = atomic_read(&phba->fabric_iocb_count) == 0 && | |
7590 | !test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); | |
7591 | ||
7f5f3d0d JS |
7592 | if (ready) |
7593 | /* Increment fabric iocb count to hold the position */ | |
7594 | atomic_inc(&phba->fabric_iocb_count); | |
92d7f7b0 JS |
7595 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
7596 | if (ready) { | |
7597 | iocb->fabric_iocb_cmpl = iocb->iocb_cmpl; | |
7598 | iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb; | |
7599 | iocb->iocb_flag |= LPFC_IO_FABRIC; | |
7600 | ||
858c9f6c JS |
7601 | lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD, |
7602 | "Fabric sched2: ste:x%x", | |
7603 | iocb->vport->port_state, 0, 0); | |
7604 | ||
3772a991 | 7605 | ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0); |
92d7f7b0 JS |
7606 | |
7607 | if (ret == IOCB_ERROR) { | |
7608 | iocb->iocb_cmpl = iocb->fabric_iocb_cmpl; | |
7609 | iocb->fabric_iocb_cmpl = NULL; | |
7610 | iocb->iocb_flag &= ~LPFC_IO_FABRIC; | |
7611 | atomic_dec(&phba->fabric_iocb_count); | |
7612 | } | |
7613 | } else { | |
7614 | spin_lock_irqsave(&phba->hbalock, iflags); | |
7615 | list_add_tail(&iocb->list, &phba->fabric_iocb_list); | |
7616 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
7617 | ret = IOCB_SUCCESS; | |
7618 | } | |
7619 | return ret; | |
7620 | } | |
7621 | ||
e59058c4 | 7622 | /** |
3621a710 | 7623 | * lpfc_fabric_abort_vport - Abort a vport's iocbs from driver fabric iocb list |
e59058c4 JS |
7624 | * @vport: pointer to a virtual N_Port data structure. |
7625 | * | |
7626 | * This routine aborts all the IOCBs associated with a @vport from the | |
7627 | * driver internal fabric IOCB list. The list contains fabric IOCBs to be | |
7628 | * issued to the ELS IOCB ring. This abort function walks the fabric IOCB | |
7629 | * list, removes each IOCB associated with the @vport off the list, set the | |
7630 | * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function | |
7631 | * associated with the IOCB. | |
7632 | **/ | |
a6ababd2 | 7633 | static void lpfc_fabric_abort_vport(struct lpfc_vport *vport) |
92d7f7b0 JS |
7634 | { |
7635 | LIST_HEAD(completions); | |
7636 | struct lpfc_hba *phba = vport->phba; | |
7637 | struct lpfc_iocbq *tmp_iocb, *piocb; | |
92d7f7b0 JS |
7638 | |
7639 | spin_lock_irq(&phba->hbalock); | |
7640 | list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list, | |
7641 | list) { | |
7642 | ||
7643 | if (piocb->vport != vport) | |
7644 | continue; | |
7645 | ||
7646 | list_move_tail(&piocb->list, &completions); | |
7647 | } | |
7648 | spin_unlock_irq(&phba->hbalock); | |
7649 | ||
a257bf90 JS |
7650 | /* Cancel all the IOCBs from the completions list */ |
7651 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
7652 | IOERR_SLI_ABORTED); | |
92d7f7b0 JS |
7653 | } |
7654 | ||
e59058c4 | 7655 | /** |
3621a710 | 7656 | * lpfc_fabric_abort_nport - Abort a ndlp's iocbs from driver fabric iocb list |
e59058c4 JS |
7657 | * @ndlp: pointer to a node-list data structure. |
7658 | * | |
7659 | * This routine aborts all the IOCBs associated with an @ndlp from the | |
7660 | * driver internal fabric IOCB list. The list contains fabric IOCBs to be | |
7661 | * issued to the ELS IOCB ring. This abort function walks the fabric IOCB | |
7662 | * list, removes each IOCB associated with the @ndlp off the list, set the | |
7663 | * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function | |
7664 | * associated with the IOCB. | |
7665 | **/ | |
92d7f7b0 JS |
7666 | void lpfc_fabric_abort_nport(struct lpfc_nodelist *ndlp) |
7667 | { | |
7668 | LIST_HEAD(completions); | |
a257bf90 | 7669 | struct lpfc_hba *phba = ndlp->phba; |
92d7f7b0 JS |
7670 | struct lpfc_iocbq *tmp_iocb, *piocb; |
7671 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; | |
92d7f7b0 JS |
7672 | |
7673 | spin_lock_irq(&phba->hbalock); | |
7674 | list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list, | |
7675 | list) { | |
7676 | if ((lpfc_check_sli_ndlp(phba, pring, piocb, ndlp))) { | |
7677 | ||
7678 | list_move_tail(&piocb->list, &completions); | |
ed957684 | 7679 | } |
dea3101e | 7680 | } |
92d7f7b0 JS |
7681 | spin_unlock_irq(&phba->hbalock); |
7682 | ||
a257bf90 JS |
7683 | /* Cancel all the IOCBs from the completions list */ |
7684 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
7685 | IOERR_SLI_ABORTED); | |
92d7f7b0 JS |
7686 | } |
7687 | ||
e59058c4 | 7688 | /** |
3621a710 | 7689 | * lpfc_fabric_abort_hba - Abort all iocbs on driver fabric iocb list |
e59058c4 JS |
7690 | * @phba: pointer to lpfc hba data structure. |
7691 | * | |
7692 | * This routine aborts all the IOCBs currently on the driver internal | |
7693 | * fabric IOCB list. The list contains fabric IOCBs to be issued to the ELS | |
7694 | * IOCB ring. This function takes the entire IOCB list off the fabric IOCB | |
7695 | * list, removes IOCBs off the list, set the status feild to | |
7696 | * IOSTAT_LOCAL_REJECT, and invokes the callback function associated with | |
7697 | * the IOCB. | |
7698 | **/ | |
92d7f7b0 JS |
7699 | void lpfc_fabric_abort_hba(struct lpfc_hba *phba) |
7700 | { | |
7701 | LIST_HEAD(completions); | |
92d7f7b0 JS |
7702 | |
7703 | spin_lock_irq(&phba->hbalock); | |
7704 | list_splice_init(&phba->fabric_iocb_list, &completions); | |
7705 | spin_unlock_irq(&phba->hbalock); | |
7706 | ||
a257bf90 JS |
7707 | /* Cancel all the IOCBs from the completions list */ |
7708 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
7709 | IOERR_SLI_ABORTED); | |
dea3101e | 7710 | } |
6fb120a7 | 7711 | |
1151e3ec JS |
7712 | /** |
7713 | * lpfc_sli4_vport_delete_els_xri_aborted -Remove all ndlp references for vport | |
7714 | * @vport: pointer to lpfc vport data structure. | |
7715 | * | |
7716 | * This routine is invoked by the vport cleanup for deletions and the cleanup | |
7717 | * for an ndlp on removal. | |
7718 | **/ | |
7719 | void | |
7720 | lpfc_sli4_vport_delete_els_xri_aborted(struct lpfc_vport *vport) | |
7721 | { | |
7722 | struct lpfc_hba *phba = vport->phba; | |
7723 | struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; | |
7724 | unsigned long iflag = 0; | |
7725 | ||
7726 | spin_lock_irqsave(&phba->hbalock, iflag); | |
7727 | spin_lock(&phba->sli4_hba.abts_sgl_list_lock); | |
7728 | list_for_each_entry_safe(sglq_entry, sglq_next, | |
7729 | &phba->sli4_hba.lpfc_abts_els_sgl_list, list) { | |
7730 | if (sglq_entry->ndlp && sglq_entry->ndlp->vport == vport) | |
7731 | sglq_entry->ndlp = NULL; | |
7732 | } | |
7733 | spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); | |
7734 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
7735 | return; | |
7736 | } | |
7737 | ||
6fb120a7 JS |
7738 | /** |
7739 | * lpfc_sli4_els_xri_aborted - Slow-path process of els xri abort | |
7740 | * @phba: pointer to lpfc hba data structure. | |
7741 | * @axri: pointer to the els xri abort wcqe structure. | |
7742 | * | |
7743 | * This routine is invoked by the worker thread to process a SLI4 slow-path | |
7744 | * ELS aborted xri. | |
7745 | **/ | |
7746 | void | |
7747 | lpfc_sli4_els_xri_aborted(struct lpfc_hba *phba, | |
7748 | struct sli4_wcqe_xri_aborted *axri) | |
7749 | { | |
7750 | uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri); | |
19ca7609 JS |
7751 | uint16_t rxid = bf_get(lpfc_wcqe_xa_remote_xid, axri); |
7752 | ||
6fb120a7 JS |
7753 | struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; |
7754 | unsigned long iflag = 0; | |
19ca7609 | 7755 | struct lpfc_nodelist *ndlp; |
589a52d6 | 7756 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; |
6fb120a7 | 7757 | |
0f65ff68 JS |
7758 | spin_lock_irqsave(&phba->hbalock, iflag); |
7759 | spin_lock(&phba->sli4_hba.abts_sgl_list_lock); | |
6fb120a7 JS |
7760 | list_for_each_entry_safe(sglq_entry, sglq_next, |
7761 | &phba->sli4_hba.lpfc_abts_els_sgl_list, list) { | |
7762 | if (sglq_entry->sli4_xritag == xri) { | |
7763 | list_del(&sglq_entry->list); | |
19ca7609 JS |
7764 | ndlp = sglq_entry->ndlp; |
7765 | sglq_entry->ndlp = NULL; | |
6fb120a7 JS |
7766 | list_add_tail(&sglq_entry->list, |
7767 | &phba->sli4_hba.lpfc_sgl_list); | |
0f65ff68 JS |
7768 | sglq_entry->state = SGL_FREED; |
7769 | spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); | |
6fb120a7 | 7770 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
19ca7609 | 7771 | lpfc_set_rrq_active(phba, ndlp, xri, rxid, 1); |
589a52d6 JS |
7772 | |
7773 | /* Check if TXQ queue needs to be serviced */ | |
7774 | if (pring->txq_cnt) | |
7775 | lpfc_worker_wake_up(phba); | |
6fb120a7 JS |
7776 | return; |
7777 | } | |
7778 | } | |
0f65ff68 JS |
7779 | spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); |
7780 | sglq_entry = __lpfc_get_active_sglq(phba, xri); | |
7781 | if (!sglq_entry || (sglq_entry->sli4_xritag != xri)) { | |
7782 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
7783 | return; | |
7784 | } | |
7785 | sglq_entry->state = SGL_XRI_ABORTED; | |
7786 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
7787 | return; | |
6fb120a7 | 7788 | } |