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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 */ | |
6d368e53 | 253 | icmd->ulpContext = phba->vpi_ids[vport->vpi]; |
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 | } | |
6d368e53 | 457 | |
6fb120a7 JS |
458 | mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
459 | if (!mboxq) { | |
460 | rc = -ENOMEM; | |
461 | goto fail_free_coherent; | |
462 | } | |
463 | vport->port_state = LPFC_FABRIC_CFG_LINK; | |
464 | memcpy(dmabuf->virt, &phba->fc_fabparam, sizeof(vport->fc_sparam)); | |
465 | lpfc_reg_vfi(mboxq, vport, dmabuf->phys); | |
466 | mboxq->mbox_cmpl = lpfc_mbx_cmpl_reg_vfi; | |
467 | mboxq->vport = vport; | |
468 | mboxq->context1 = dmabuf; | |
469 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); | |
470 | if (rc == MBX_NOT_FINISHED) { | |
471 | rc = -ENXIO; | |
472 | goto fail_free_mbox; | |
473 | } | |
474 | return 0; | |
475 | ||
476 | fail_free_mbox: | |
477 | mempool_free(mboxq, phba->mbox_mem_pool); | |
478 | fail_free_coherent: | |
479 | lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys); | |
480 | fail_free_dmabuf: | |
481 | kfree(dmabuf); | |
482 | fail: | |
483 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
484 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
485 | "0289 Issue Register VFI failed: Err %d\n", rc); | |
486 | return rc; | |
487 | } | |
488 | ||
92494144 JS |
489 | /** |
490 | * lpfc_check_clean_addr_bit - Check whether assigned FCID is clean. | |
491 | * @vport: pointer to a host virtual N_Port data structure. | |
492 | * @sp: pointer to service parameter data structure. | |
493 | * | |
494 | * This routine is called from FLOGI/FDISC completion handler functions. | |
495 | * lpfc_check_clean_addr_bit return 1 when FCID/Fabric portname/ Fabric | |
496 | * node nodename is changed in the completion service parameter else return | |
497 | * 0. This function also set flag in the vport data structure to delay | |
498 | * NP_Port discovery after the FLOGI/FDISC completion if Clean address bit | |
499 | * in FLOGI/FDISC response is cleared and FCID/Fabric portname/ Fabric | |
500 | * node nodename is changed in the completion service parameter. | |
501 | * | |
502 | * Return code | |
503 | * 0 - FCID and Fabric Nodename and Fabric portname is not changed. | |
504 | * 1 - FCID or Fabric Nodename or Fabric portname is changed. | |
505 | * | |
506 | **/ | |
507 | static uint8_t | |
508 | lpfc_check_clean_addr_bit(struct lpfc_vport *vport, | |
509 | struct serv_parm *sp) | |
510 | { | |
511 | uint8_t fabric_param_changed = 0; | |
512 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
513 | ||
514 | if ((vport->fc_prevDID != vport->fc_myDID) || | |
515 | memcmp(&vport->fabric_portname, &sp->portName, | |
516 | sizeof(struct lpfc_name)) || | |
517 | memcmp(&vport->fabric_nodename, &sp->nodeName, | |
518 | sizeof(struct lpfc_name))) | |
519 | fabric_param_changed = 1; | |
520 | ||
521 | /* | |
522 | * Word 1 Bit 31 in common service parameter is overloaded. | |
523 | * Word 1 Bit 31 in FLOGI request is multiple NPort request | |
524 | * Word 1 Bit 31 in FLOGI response is clean address bit | |
525 | * | |
526 | * If fabric parameter is changed and clean address bit is | |
527 | * cleared delay nport discovery if | |
528 | * - vport->fc_prevDID != 0 (not initial discovery) OR | |
529 | * - lpfc_delay_discovery module parameter is set. | |
530 | */ | |
531 | if (fabric_param_changed && !sp->cmn.clean_address_bit && | |
532 | (vport->fc_prevDID || lpfc_delay_discovery)) { | |
533 | spin_lock_irq(shost->host_lock); | |
534 | vport->fc_flag |= FC_DISC_DELAYED; | |
535 | spin_unlock_irq(shost->host_lock); | |
536 | } | |
537 | ||
538 | return fabric_param_changed; | |
539 | } | |
540 | ||
541 | ||
e59058c4 | 542 | /** |
3621a710 | 543 | * lpfc_cmpl_els_flogi_fabric - Completion function for flogi to a fabric port |
e59058c4 JS |
544 | * @vport: pointer to a host virtual N_Port data structure. |
545 | * @ndlp: pointer to a node-list data structure. | |
546 | * @sp: pointer to service parameter data structure. | |
547 | * @irsp: pointer to the IOCB within the lpfc response IOCB. | |
548 | * | |
549 | * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback | |
550 | * function to handle the completion of a Fabric Login (FLOGI) into a fabric | |
551 | * port in a fabric topology. It properly sets up the parameters to the @ndlp | |
552 | * from the IOCB response. It also check the newly assigned N_Port ID to the | |
553 | * @vport against the previously assigned N_Port ID. If it is different from | |
554 | * the previously assigned Destination ID (DID), the lpfc_unreg_rpi() routine | |
555 | * is invoked on all the remaining nodes with the @vport to unregister the | |
556 | * Remote Port Indicators (RPIs). Finally, the lpfc_issue_fabric_reglogin() | |
557 | * is invoked to register login to the fabric. | |
558 | * | |
559 | * Return code | |
560 | * 0 - Success (currently, always return 0) | |
561 | **/ | |
92d7f7b0 JS |
562 | static int |
563 | lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, | |
564 | struct serv_parm *sp, IOCB_t *irsp) | |
565 | { | |
566 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
567 | struct lpfc_hba *phba = vport->phba; | |
568 | struct lpfc_nodelist *np; | |
569 | struct lpfc_nodelist *next_np; | |
92494144 | 570 | uint8_t fabric_param_changed; |
92d7f7b0 | 571 | |
2e0fef85 JS |
572 | spin_lock_irq(shost->host_lock); |
573 | vport->fc_flag |= FC_FABRIC; | |
574 | spin_unlock_irq(shost->host_lock); | |
dea3101e JB |
575 | |
576 | phba->fc_edtov = be32_to_cpu(sp->cmn.e_d_tov); | |
577 | if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */ | |
578 | phba->fc_edtov = (phba->fc_edtov + 999999) / 1000000; | |
579 | ||
12265f68 | 580 | phba->fc_edtovResol = sp->cmn.edtovResolution; |
dea3101e JB |
581 | phba->fc_ratov = (be32_to_cpu(sp->cmn.w2.r_a_tov) + 999) / 1000; |
582 | ||
76a95d75 | 583 | if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { |
2e0fef85 JS |
584 | spin_lock_irq(shost->host_lock); |
585 | vport->fc_flag |= FC_PUBLIC_LOOP; | |
586 | spin_unlock_irq(shost->host_lock); | |
dea3101e JB |
587 | } |
588 | ||
2e0fef85 | 589 | vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID; |
dea3101e | 590 | memcpy(&ndlp->nlp_portname, &sp->portName, sizeof(struct lpfc_name)); |
92d7f7b0 | 591 | memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof(struct lpfc_name)); |
dea3101e JB |
592 | ndlp->nlp_class_sup = 0; |
593 | if (sp->cls1.classValid) | |
594 | ndlp->nlp_class_sup |= FC_COS_CLASS1; | |
595 | if (sp->cls2.classValid) | |
596 | ndlp->nlp_class_sup |= FC_COS_CLASS2; | |
597 | if (sp->cls3.classValid) | |
598 | ndlp->nlp_class_sup |= FC_COS_CLASS3; | |
599 | if (sp->cls4.classValid) | |
600 | ndlp->nlp_class_sup |= FC_COS_CLASS4; | |
601 | ndlp->nlp_maxframe = ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | | |
602 | sp->cmn.bbRcvSizeLsb; | |
92494144 JS |
603 | |
604 | fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp); | |
605 | memcpy(&vport->fabric_portname, &sp->portName, | |
606 | sizeof(struct lpfc_name)); | |
607 | memcpy(&vport->fabric_nodename, &sp->nodeName, | |
608 | sizeof(struct lpfc_name)); | |
dea3101e JB |
609 | memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); |
610 | ||
92d7f7b0 JS |
611 | if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { |
612 | if (sp->cmn.response_multiple_NPort) { | |
e8b62011 JS |
613 | lpfc_printf_vlog(vport, KERN_WARNING, |
614 | LOG_ELS | LOG_VPORT, | |
615 | "1816 FLOGI NPIV supported, " | |
616 | "response data 0x%x\n", | |
617 | sp->cmn.response_multiple_NPort); | |
92d7f7b0 | 618 | phba->link_flag |= LS_NPIV_FAB_SUPPORTED; |
92d7f7b0 JS |
619 | } else { |
620 | /* Because we asked f/w for NPIV it still expects us | |
e8b62011 JS |
621 | to call reg_vnpid atleast for the physcial host */ |
622 | lpfc_printf_vlog(vport, KERN_WARNING, | |
623 | LOG_ELS | LOG_VPORT, | |
624 | "1817 Fabric does not support NPIV " | |
625 | "- configuring single port mode.\n"); | |
92d7f7b0 JS |
626 | phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED; |
627 | } | |
628 | } | |
dea3101e | 629 | |
92494144 | 630 | if (fabric_param_changed && |
92d7f7b0 | 631 | !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { |
dea3101e | 632 | |
92d7f7b0 JS |
633 | /* If our NportID changed, we need to ensure all |
634 | * remaining NPORTs get unreg_login'ed. | |
635 | */ | |
636 | list_for_each_entry_safe(np, next_np, | |
637 | &vport->fc_nodes, nlp_listp) { | |
d7c255b2 | 638 | if (!NLP_CHK_NODE_ACT(np)) |
e47c9093 | 639 | continue; |
92d7f7b0 JS |
640 | if ((np->nlp_state != NLP_STE_NPR_NODE) || |
641 | !(np->nlp_flag & NLP_NPR_ADISC)) | |
642 | continue; | |
643 | spin_lock_irq(shost->host_lock); | |
644 | np->nlp_flag &= ~NLP_NPR_ADISC; | |
645 | spin_unlock_irq(shost->host_lock); | |
646 | lpfc_unreg_rpi(vport, np); | |
647 | } | |
78730cfe | 648 | lpfc_cleanup_pending_mbox(vport); |
5af5eee7 | 649 | |
5248a749 | 650 | if (phba->sli_rev == LPFC_SLI_REV4) { |
5af5eee7 | 651 | lpfc_sli4_unreg_all_rpis(vport); |
92d7f7b0 | 652 | lpfc_mbx_unreg_vpi(vport); |
09372820 | 653 | spin_lock_irq(shost->host_lock); |
92d7f7b0 | 654 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; |
5248a749 JS |
655 | /* |
656 | * If VPI is unreged, driver need to do INIT_VPI | |
657 | * before re-registering | |
658 | */ | |
ecfd03c6 JS |
659 | vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; |
660 | spin_unlock_irq(shost->host_lock); | |
661 | } | |
38b92ef8 JS |
662 | } else if ((phba->sli_rev == LPFC_SLI_REV4) && |
663 | !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { | |
664 | /* | |
665 | * Driver needs to re-reg VPI in order for f/w | |
666 | * to update the MAC address. | |
667 | */ | |
9589b062 | 668 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); |
38b92ef8 JS |
669 | lpfc_register_new_vport(phba, vport, ndlp); |
670 | return 0; | |
92d7f7b0 | 671 | } |
dea3101e | 672 | |
6fb120a7 JS |
673 | if (phba->sli_rev < LPFC_SLI_REV4) { |
674 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_REG_LOGIN_ISSUE); | |
675 | if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED && | |
676 | vport->fc_flag & FC_VPORT_NEEDS_REG_VPI) | |
677 | lpfc_register_new_vport(phba, vport, ndlp); | |
678 | else | |
679 | lpfc_issue_fabric_reglogin(vport); | |
680 | } else { | |
681 | ndlp->nlp_type |= NLP_FABRIC; | |
682 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); | |
695a814e JS |
683 | if ((!(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) && |
684 | (vport->vpi_state & LPFC_VPI_REGISTERED)) { | |
6fb120a7 JS |
685 | lpfc_start_fdiscs(phba); |
686 | lpfc_do_scr_ns_plogi(phba, vport); | |
695a814e | 687 | } else if (vport->fc_flag & FC_VFI_REGISTERED) |
ecfd03c6 | 688 | lpfc_issue_init_vpi(vport); |
695a814e | 689 | else |
6fb120a7 | 690 | lpfc_issue_reg_vfi(vport); |
92d7f7b0 | 691 | } |
dea3101e | 692 | return 0; |
dea3101e | 693 | } |
e59058c4 | 694 | /** |
3621a710 | 695 | * lpfc_cmpl_els_flogi_nport - Completion function for flogi to an N_Port |
e59058c4 JS |
696 | * @vport: pointer to a host virtual N_Port data structure. |
697 | * @ndlp: pointer to a node-list data structure. | |
698 | * @sp: pointer to service parameter data structure. | |
699 | * | |
700 | * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback | |
701 | * function to handle the completion of a Fabric Login (FLOGI) into an N_Port | |
702 | * in a point-to-point topology. First, the @vport's N_Port Name is compared | |
703 | * with the received N_Port Name: if the @vport's N_Port Name is greater than | |
704 | * the received N_Port Name lexicographically, this node shall assign local | |
705 | * N_Port ID (PT2PT_LocalID: 1) and remote N_Port ID (PT2PT_RemoteID: 2) and | |
706 | * will send out Port Login (PLOGI) with the N_Port IDs assigned. Otherwise, | |
707 | * this node shall just wait for the remote node to issue PLOGI and assign | |
708 | * N_Port IDs. | |
709 | * | |
710 | * Return code | |
711 | * 0 - Success | |
712 | * -ENXIO - Fail | |
713 | **/ | |
dea3101e | 714 | static int |
2e0fef85 JS |
715 | lpfc_cmpl_els_flogi_nport(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
716 | struct serv_parm *sp) | |
dea3101e | 717 | { |
2e0fef85 JS |
718 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
719 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
720 | LPFC_MBOXQ_t *mbox; |
721 | int rc; | |
722 | ||
2e0fef85 JS |
723 | spin_lock_irq(shost->host_lock); |
724 | vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
725 | spin_unlock_irq(shost->host_lock); | |
dea3101e JB |
726 | |
727 | phba->fc_edtov = FF_DEF_EDTOV; | |
728 | phba->fc_ratov = FF_DEF_RATOV; | |
2e0fef85 | 729 | rc = memcmp(&vport->fc_portname, &sp->portName, |
92d7f7b0 | 730 | sizeof(vport->fc_portname)); |
dea3101e JB |
731 | if (rc >= 0) { |
732 | /* This side will initiate the PLOGI */ | |
2e0fef85 JS |
733 | spin_lock_irq(shost->host_lock); |
734 | vport->fc_flag |= FC_PT2PT_PLOGI; | |
735 | spin_unlock_irq(shost->host_lock); | |
dea3101e JB |
736 | |
737 | /* | |
738 | * N_Port ID cannot be 0, set our to LocalID the other | |
739 | * side will be RemoteID. | |
740 | */ | |
741 | ||
742 | /* not equal */ | |
743 | if (rc) | |
2e0fef85 | 744 | vport->fc_myDID = PT2PT_LocalID; |
dea3101e JB |
745 | |
746 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
747 | if (!mbox) | |
748 | goto fail; | |
749 | ||
750 | lpfc_config_link(phba, mbox); | |
751 | ||
752 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
ed957684 | 753 | mbox->vport = vport; |
0b727fea | 754 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
dea3101e JB |
755 | if (rc == MBX_NOT_FINISHED) { |
756 | mempool_free(mbox, phba->mbox_mem_pool); | |
757 | goto fail; | |
758 | } | |
e47c9093 JS |
759 | /* Decrement ndlp reference count indicating that ndlp can be |
760 | * safely released when other references to it are done. | |
761 | */ | |
329f9bc7 | 762 | lpfc_nlp_put(ndlp); |
dea3101e | 763 | |
2e0fef85 | 764 | ndlp = lpfc_findnode_did(vport, PT2PT_RemoteID); |
dea3101e JB |
765 | if (!ndlp) { |
766 | /* | |
767 | * Cannot find existing Fabric ndlp, so allocate a | |
768 | * new one | |
769 | */ | |
770 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
771 | if (!ndlp) | |
772 | goto fail; | |
2e0fef85 | 773 | lpfc_nlp_init(vport, ndlp, PT2PT_RemoteID); |
e47c9093 JS |
774 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { |
775 | ndlp = lpfc_enable_node(vport, ndlp, | |
776 | NLP_STE_UNUSED_NODE); | |
777 | if(!ndlp) | |
778 | goto fail; | |
dea3101e JB |
779 | } |
780 | ||
781 | memcpy(&ndlp->nlp_portname, &sp->portName, | |
2e0fef85 | 782 | sizeof(struct lpfc_name)); |
dea3101e | 783 | memcpy(&ndlp->nlp_nodename, &sp->nodeName, |
2e0fef85 | 784 | sizeof(struct lpfc_name)); |
e47c9093 | 785 | /* Set state will put ndlp onto node list if not already done */ |
2e0fef85 JS |
786 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
787 | spin_lock_irq(shost->host_lock); | |
dea3101e | 788 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 | 789 | spin_unlock_irq(shost->host_lock); |
e47c9093 JS |
790 | } else |
791 | /* This side will wait for the PLOGI, decrement ndlp reference | |
792 | * count indicating that ndlp can be released when other | |
793 | * references to it are done. | |
794 | */ | |
329f9bc7 | 795 | lpfc_nlp_put(ndlp); |
dea3101e | 796 | |
09372820 JS |
797 | /* If we are pt2pt with another NPort, force NPIV off! */ |
798 | phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED; | |
799 | ||
2e0fef85 JS |
800 | spin_lock_irq(shost->host_lock); |
801 | vport->fc_flag |= FC_PT2PT; | |
802 | spin_unlock_irq(shost->host_lock); | |
dea3101e JB |
803 | |
804 | /* Start discovery - this should just do CLEAR_LA */ | |
2e0fef85 | 805 | lpfc_disc_start(vport); |
dea3101e | 806 | return 0; |
92d7f7b0 | 807 | fail: |
dea3101e JB |
808 | return -ENXIO; |
809 | } | |
810 | ||
e59058c4 | 811 | /** |
3621a710 | 812 | * lpfc_cmpl_els_flogi - Completion callback function for flogi |
e59058c4 JS |
813 | * @phba: pointer to lpfc hba data structure. |
814 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
815 | * @rspiocb: pointer to lpfc response iocb data structure. | |
816 | * | |
817 | * This routine is the top-level completion callback function for issuing | |
818 | * a Fabric Login (FLOGI) command. If the response IOCB reported error, | |
819 | * the lpfc_els_retry() routine shall be invoked to retry the FLOGI. If | |
820 | * retry has been made (either immediately or delayed with lpfc_els_retry() | |
821 | * returning 1), the command IOCB will be released and function returned. | |
822 | * If the retry attempt has been given up (possibly reach the maximum | |
823 | * number of retries), one additional decrement of ndlp reference shall be | |
824 | * invoked before going out after releasing the command IOCB. This will | |
825 | * actually release the remote node (Note, lpfc_els_free_iocb() will also | |
826 | * invoke one decrement of ndlp reference count). If no error reported in | |
827 | * the IOCB status, the command Port ID field is used to determine whether | |
828 | * this is a point-to-point topology or a fabric topology: if the Port ID | |
829 | * field is assigned, it is a fabric topology; otherwise, it is a | |
830 | * point-to-point topology. The routine lpfc_cmpl_els_flogi_fabric() or | |
831 | * lpfc_cmpl_els_flogi_nport() shall be invoked accordingly to handle the | |
832 | * specific topology completion conditions. | |
833 | **/ | |
dea3101e | 834 | static void |
329f9bc7 JS |
835 | lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
836 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 837 | { |
2e0fef85 JS |
838 | struct lpfc_vport *vport = cmdiocb->vport; |
839 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e JB |
840 | IOCB_t *irsp = &rspiocb->iocb; |
841 | struct lpfc_nodelist *ndlp = cmdiocb->context1; | |
842 | struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp; | |
843 | struct serv_parm *sp; | |
0c9ab6f5 | 844 | uint16_t fcf_index; |
dea3101e JB |
845 | int rc; |
846 | ||
847 | /* Check to see if link went down during discovery */ | |
2e0fef85 | 848 | if (lpfc_els_chk_latt(vport)) { |
fa4066b6 JS |
849 | /* One additional decrement on node reference count to |
850 | * trigger the release of the node | |
851 | */ | |
329f9bc7 | 852 | lpfc_nlp_put(ndlp); |
dea3101e JB |
853 | goto out; |
854 | } | |
855 | ||
858c9f6c JS |
856 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
857 | "FLOGI cmpl: status:x%x/x%x state:x%x", | |
858 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
859 | vport->port_state); | |
860 | ||
dea3101e | 861 | if (irsp->ulpStatus) { |
0c9ab6f5 | 862 | /* |
a93ff37a | 863 | * In case of FIP mode, perform roundrobin FCF failover |
0c9ab6f5 JS |
864 | * due to new FCF discovery |
865 | */ | |
866 | if ((phba->hba_flag & HBA_FIP_SUPPORT) && | |
dbb6b3ab | 867 | (phba->fcf.fcf_flag & FCF_DISCOVERY) && |
9589b062 JS |
868 | !((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) && |
869 | (irsp->un.ulpWord[4] == IOERR_SLI_ABORTED))) { | |
0c9ab6f5 | 870 | lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS, |
a93ff37a JS |
871 | "2611 FLOGI failed on FCF (x%x), " |
872 | "status:x%x/x%x, tmo:x%x, perform " | |
873 | "roundrobin FCF failover\n", | |
38b92ef8 JS |
874 | phba->fcf.current_rec.fcf_indx, |
875 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
876 | irsp->ulpTimeout); | |
7d791df7 JS |
877 | lpfc_sli4_set_fcf_flogi_fail(phba, |
878 | phba->fcf.current_rec.fcf_indx); | |
0c9ab6f5 | 879 | fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba); |
a93ff37a JS |
880 | rc = lpfc_sli4_fcf_rr_next_proc(vport, fcf_index); |
881 | if (rc) | |
882 | goto out; | |
0c9ab6f5 JS |
883 | } |
884 | ||
38b92ef8 JS |
885 | /* FLOGI failure */ |
886 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
887 | "2858 FLOGI failure Status:x%x/x%x TMO:x%x\n", | |
888 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
889 | irsp->ulpTimeout); | |
890 | ||
dea3101e | 891 | /* Check for retry */ |
2e0fef85 | 892 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) |
dea3101e | 893 | goto out; |
2e0fef85 | 894 | |
76a95d75 JS |
895 | /* FLOGI failure */ |
896 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
897 | "0100 FLOGI failure Status:x%x/x%x TMO:x%x\n", | |
898 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
899 | irsp->ulpTimeout); | |
900 | ||
dea3101e | 901 | /* FLOGI failed, so there is no fabric */ |
2e0fef85 JS |
902 | spin_lock_irq(shost->host_lock); |
903 | vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
904 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 905 | |
329f9bc7 | 906 | /* If private loop, then allow max outstanding els to be |
dea3101e JB |
907 | * LPFC_MAX_DISC_THREADS (32). Scanning in the case of no |
908 | * alpa map would take too long otherwise. | |
909 | */ | |
910 | if (phba->alpa_map[0] == 0) { | |
3de2a653 | 911 | vport->cfg_discovery_threads = LPFC_MAX_DISC_THREADS; |
ff78d8f9 JS |
912 | } |
913 | if ((phba->sli_rev == LPFC_SLI_REV4) && | |
914 | (!(vport->fc_flag & FC_VFI_REGISTERED) || | |
915 | (vport->fc_prevDID != vport->fc_myDID))) { | |
916 | if (vport->fc_flag & FC_VFI_REGISTERED) | |
917 | lpfc_sli4_unreg_all_rpis(vport); | |
918 | lpfc_issue_reg_vfi(vport); | |
919 | lpfc_nlp_put(ndlp); | |
920 | goto out; | |
dea3101e | 921 | } |
dea3101e JB |
922 | goto flogifail; |
923 | } | |
695a814e JS |
924 | spin_lock_irq(shost->host_lock); |
925 | vport->fc_flag &= ~FC_VPORT_CVL_RCVD; | |
4b40c59e | 926 | vport->fc_flag &= ~FC_VPORT_LOGO_RCVD; |
695a814e | 927 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
928 | |
929 | /* | |
930 | * The FLogI succeeded. Sync the data for the CPU before | |
931 | * accessing it. | |
932 | */ | |
933 | prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); | |
934 | ||
935 | sp = prsp->virt + sizeof(uint32_t); | |
936 | ||
937 | /* FLOGI completes successfully */ | |
e8b62011 | 938 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
af901ca1 | 939 | "0101 FLOGI completes successfully " |
e8b62011 JS |
940 | "Data: x%x x%x x%x x%x\n", |
941 | irsp->un.ulpWord[4], sp->cmn.e_d_tov, | |
942 | sp->cmn.w2.r_a_tov, sp->cmn.edtovResolution); | |
dea3101e | 943 | |
2e0fef85 | 944 | if (vport->port_state == LPFC_FLOGI) { |
dea3101e JB |
945 | /* |
946 | * If Common Service Parameters indicate Nport | |
947 | * we are point to point, if Fport we are Fabric. | |
948 | */ | |
949 | if (sp->cmn.fPort) | |
2e0fef85 | 950 | rc = lpfc_cmpl_els_flogi_fabric(vport, ndlp, sp, irsp); |
76a95d75 | 951 | else if (!(phba->hba_flag & HBA_FCOE_MODE)) |
2e0fef85 | 952 | rc = lpfc_cmpl_els_flogi_nport(vport, ndlp, sp); |
dbb6b3ab JS |
953 | else { |
954 | lpfc_printf_vlog(vport, KERN_ERR, | |
955 | LOG_FIP | LOG_ELS, | |
956 | "2831 FLOGI response with cleared Fabric " | |
957 | "bit fcf_index 0x%x " | |
958 | "Switch Name %02x%02x%02x%02x%02x%02x%02x%02x " | |
959 | "Fabric Name " | |
960 | "%02x%02x%02x%02x%02x%02x%02x%02x\n", | |
961 | phba->fcf.current_rec.fcf_indx, | |
962 | phba->fcf.current_rec.switch_name[0], | |
963 | phba->fcf.current_rec.switch_name[1], | |
964 | phba->fcf.current_rec.switch_name[2], | |
965 | phba->fcf.current_rec.switch_name[3], | |
966 | phba->fcf.current_rec.switch_name[4], | |
967 | phba->fcf.current_rec.switch_name[5], | |
968 | phba->fcf.current_rec.switch_name[6], | |
969 | phba->fcf.current_rec.switch_name[7], | |
970 | phba->fcf.current_rec.fabric_name[0], | |
971 | phba->fcf.current_rec.fabric_name[1], | |
972 | phba->fcf.current_rec.fabric_name[2], | |
973 | phba->fcf.current_rec.fabric_name[3], | |
974 | phba->fcf.current_rec.fabric_name[4], | |
975 | phba->fcf.current_rec.fabric_name[5], | |
976 | phba->fcf.current_rec.fabric_name[6], | |
977 | phba->fcf.current_rec.fabric_name[7]); | |
978 | lpfc_nlp_put(ndlp); | |
979 | spin_lock_irq(&phba->hbalock); | |
980 | phba->fcf.fcf_flag &= ~FCF_DISCOVERY; | |
a93ff37a | 981 | phba->hba_flag &= ~(FCF_RR_INPROG | HBA_DEVLOSS_TMO); |
dbb6b3ab JS |
982 | spin_unlock_irq(&phba->hbalock); |
983 | goto out; | |
984 | } | |
0c9ab6f5 JS |
985 | if (!rc) { |
986 | /* Mark the FCF discovery process done */ | |
999d813f JS |
987 | if (phba->hba_flag & HBA_FIP_SUPPORT) |
988 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FIP | | |
989 | LOG_ELS, | |
a93ff37a JS |
990 | "2769 FLOGI to FCF (x%x) " |
991 | "completed successfully\n", | |
999d813f | 992 | phba->fcf.current_rec.fcf_indx); |
0c9ab6f5 JS |
993 | spin_lock_irq(&phba->hbalock); |
994 | phba->fcf.fcf_flag &= ~FCF_DISCOVERY; | |
a93ff37a | 995 | phba->hba_flag &= ~(FCF_RR_INPROG | HBA_DEVLOSS_TMO); |
0c9ab6f5 | 996 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 997 | goto out; |
0c9ab6f5 | 998 | } |
dea3101e JB |
999 | } |
1000 | ||
1001 | flogifail: | |
329f9bc7 | 1002 | lpfc_nlp_put(ndlp); |
dea3101e | 1003 | |
858c9f6c | 1004 | if (!lpfc_error_lost_link(irsp)) { |
dea3101e | 1005 | /* FLOGI failed, so just use loop map to make discovery list */ |
2e0fef85 | 1006 | lpfc_disc_list_loopmap(vport); |
dea3101e JB |
1007 | |
1008 | /* Start discovery */ | |
2e0fef85 | 1009 | lpfc_disc_start(vport); |
87af33fe JS |
1010 | } else if (((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) || |
1011 | ((irsp->un.ulpWord[4] != IOERR_SLI_ABORTED) && | |
1012 | (irsp->un.ulpWord[4] != IOERR_SLI_DOWN))) && | |
1013 | (phba->link_state != LPFC_CLEAR_LA)) { | |
1014 | /* If FLOGI failed enable link interrupt. */ | |
1015 | lpfc_issue_clear_la(phba, vport); | |
dea3101e | 1016 | } |
dea3101e JB |
1017 | out: |
1018 | lpfc_els_free_iocb(phba, cmdiocb); | |
1019 | } | |
1020 | ||
e59058c4 | 1021 | /** |
3621a710 | 1022 | * lpfc_issue_els_flogi - Issue an flogi iocb command for a vport |
e59058c4 JS |
1023 | * @vport: pointer to a host virtual N_Port data structure. |
1024 | * @ndlp: pointer to a node-list data structure. | |
1025 | * @retry: number of retries to the command IOCB. | |
1026 | * | |
1027 | * This routine issues a Fabric Login (FLOGI) Request ELS command | |
1028 | * for a @vport. The initiator service parameters are put into the payload | |
1029 | * of the FLOGI Request IOCB and the top-level callback function pointer | |
1030 | * to lpfc_cmpl_els_flogi() routine is put to the IOCB completion callback | |
1031 | * function field. The lpfc_issue_fabric_iocb routine is invoked to send | |
1032 | * out FLOGI ELS command with one outstanding fabric IOCB at a time. | |
1033 | * | |
1034 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
1035 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
1036 | * will be stored into the context1 field of the IOCB for the completion | |
1037 | * callback function to the FLOGI ELS command. | |
1038 | * | |
1039 | * Return code | |
1040 | * 0 - successfully issued flogi iocb for @vport | |
1041 | * 1 - failed to issue flogi iocb for @vport | |
1042 | **/ | |
dea3101e | 1043 | static int |
2e0fef85 | 1044 | lpfc_issue_els_flogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
dea3101e JB |
1045 | uint8_t retry) |
1046 | { | |
2e0fef85 | 1047 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
1048 | struct serv_parm *sp; |
1049 | IOCB_t *icmd; | |
1050 | struct lpfc_iocbq *elsiocb; | |
1051 | struct lpfc_sli_ring *pring; | |
1052 | uint8_t *pcmd; | |
1053 | uint16_t cmdsize; | |
1054 | uint32_t tmo; | |
1055 | int rc; | |
1056 | ||
1057 | pring = &phba->sli.ring[LPFC_ELS_RING]; | |
1058 | ||
92d7f7b0 | 1059 | cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); |
2e0fef85 JS |
1060 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
1061 | ndlp->nlp_DID, ELS_CMD_FLOGI); | |
92d7f7b0 | 1062 | |
488d1469 | 1063 | if (!elsiocb) |
c9f8735b | 1064 | return 1; |
dea3101e JB |
1065 | |
1066 | icmd = &elsiocb->iocb; | |
1067 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
1068 | ||
1069 | /* For FLOGI request, remainder of payload is service parameters */ | |
1070 | *((uint32_t *) (pcmd)) = ELS_CMD_FLOGI; | |
92d7f7b0 JS |
1071 | pcmd += sizeof(uint32_t); |
1072 | memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); | |
dea3101e JB |
1073 | sp = (struct serv_parm *) pcmd; |
1074 | ||
1075 | /* Setup CSPs accordingly for Fabric */ | |
1076 | sp->cmn.e_d_tov = 0; | |
1077 | sp->cmn.w2.r_a_tov = 0; | |
1078 | sp->cls1.classValid = 0; | |
1079 | sp->cls2.seqDelivery = 1; | |
1080 | sp->cls3.seqDelivery = 1; | |
1081 | if (sp->cmn.fcphLow < FC_PH3) | |
1082 | sp->cmn.fcphLow = FC_PH3; | |
1083 | if (sp->cmn.fcphHigh < FC_PH3) | |
1084 | sp->cmn.fcphHigh = FC_PH3; | |
1085 | ||
c31098ce JS |
1086 | if (phba->sli_rev == LPFC_SLI_REV4) { |
1087 | if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == | |
1088 | LPFC_SLI_INTF_IF_TYPE_0) { | |
1089 | elsiocb->iocb.ulpCt_h = ((SLI4_CT_FCFI >> 1) & 1); | |
1090 | elsiocb->iocb.ulpCt_l = (SLI4_CT_FCFI & 1); | |
1091 | /* FLOGI needs to be 3 for WQE FCFI */ | |
1092 | /* Set the fcfi to the fcfi we registered with */ | |
1093 | elsiocb->iocb.ulpContext = phba->fcf.fcfi; | |
1094 | } | |
5248a749 JS |
1095 | } else { |
1096 | if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { | |
1097 | sp->cmn.request_multiple_Nport = 1; | |
1098 | /* For FLOGI, Let FLOGI rsp set the NPortID for VPI 0 */ | |
1099 | icmd->ulpCt_h = 1; | |
1100 | icmd->ulpCt_l = 0; | |
1101 | } else | |
1102 | sp->cmn.request_multiple_Nport = 0; | |
92d7f7b0 JS |
1103 | } |
1104 | ||
76a95d75 | 1105 | if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) { |
858c9f6c JS |
1106 | icmd->un.elsreq64.myID = 0; |
1107 | icmd->un.elsreq64.fl = 1; | |
1108 | } | |
1109 | ||
dea3101e JB |
1110 | tmo = phba->fc_ratov; |
1111 | phba->fc_ratov = LPFC_DISC_FLOGI_TMO; | |
2e0fef85 | 1112 | lpfc_set_disctmo(vport); |
dea3101e JB |
1113 | phba->fc_ratov = tmo; |
1114 | ||
1115 | phba->fc_stat.elsXmitFLOGI++; | |
1116 | elsiocb->iocb_cmpl = lpfc_cmpl_els_flogi; | |
858c9f6c JS |
1117 | |
1118 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, | |
1119 | "Issue FLOGI: opt:x%x", | |
1120 | phba->sli3_options, 0, 0); | |
1121 | ||
92d7f7b0 | 1122 | rc = lpfc_issue_fabric_iocb(phba, elsiocb); |
dea3101e JB |
1123 | if (rc == IOCB_ERROR) { |
1124 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 1125 | return 1; |
dea3101e | 1126 | } |
c9f8735b | 1127 | return 0; |
dea3101e JB |
1128 | } |
1129 | ||
e59058c4 | 1130 | /** |
3621a710 | 1131 | * lpfc_els_abort_flogi - Abort all outstanding flogi iocbs |
e59058c4 JS |
1132 | * @phba: pointer to lpfc hba data structure. |
1133 | * | |
1134 | * This routine aborts all the outstanding Fabric Login (FLOGI) IOCBs | |
1135 | * with a @phba. This routine walks all the outstanding IOCBs on the txcmplq | |
1136 | * list and issues an abort IOCB commond on each outstanding IOCB that | |
1137 | * contains a active Fabric_DID ndlp. Note that this function is to issue | |
1138 | * the abort IOCB command on all the outstanding IOCBs, thus when this | |
1139 | * function returns, it does not guarantee all the IOCBs are actually aborted. | |
1140 | * | |
1141 | * Return code | |
3ad2f3fb | 1142 | * 0 - Successfully issued abort iocb on all outstanding flogis (Always 0) |
e59058c4 | 1143 | **/ |
dea3101e | 1144 | int |
2e0fef85 | 1145 | lpfc_els_abort_flogi(struct lpfc_hba *phba) |
dea3101e JB |
1146 | { |
1147 | struct lpfc_sli_ring *pring; | |
1148 | struct lpfc_iocbq *iocb, *next_iocb; | |
1149 | struct lpfc_nodelist *ndlp; | |
1150 | IOCB_t *icmd; | |
1151 | ||
1152 | /* Abort outstanding I/O on NPort <nlp_DID> */ | |
1153 | lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, | |
e8b62011 JS |
1154 | "0201 Abort outstanding I/O on NPort x%x\n", |
1155 | Fabric_DID); | |
dea3101e JB |
1156 | |
1157 | pring = &phba->sli.ring[LPFC_ELS_RING]; | |
1158 | ||
1159 | /* | |
1160 | * Check the txcmplq for an iocb that matches the nport the driver is | |
1161 | * searching for. | |
1162 | */ | |
2e0fef85 | 1163 | spin_lock_irq(&phba->hbalock); |
dea3101e JB |
1164 | list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { |
1165 | icmd = &iocb->iocb; | |
2e0fef85 JS |
1166 | if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR && |
1167 | icmd->un.elsreq64.bdl.ulpIoTag32) { | |
dea3101e | 1168 | ndlp = (struct lpfc_nodelist *)(iocb->context1); |
58da1ffb JS |
1169 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && |
1170 | (ndlp->nlp_DID == Fabric_DID)) | |
07951076 | 1171 | lpfc_sli_issue_abort_iotag(phba, pring, iocb); |
dea3101e JB |
1172 | } |
1173 | } | |
2e0fef85 | 1174 | spin_unlock_irq(&phba->hbalock); |
dea3101e JB |
1175 | |
1176 | return 0; | |
1177 | } | |
1178 | ||
e59058c4 | 1179 | /** |
3621a710 | 1180 | * lpfc_initial_flogi - Issue an initial fabric login for a vport |
e59058c4 JS |
1181 | * @vport: pointer to a host virtual N_Port data structure. |
1182 | * | |
1183 | * This routine issues an initial Fabric Login (FLOGI) for the @vport | |
1184 | * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from | |
1185 | * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and | |
1186 | * put it into the @vport's ndlp list. If an inactive ndlp found on the list, | |
1187 | * it will just be enabled and made active. The lpfc_issue_els_flogi() routine | |
1188 | * is then invoked with the @vport and the ndlp to perform the FLOGI for the | |
1189 | * @vport. | |
1190 | * | |
1191 | * Return code | |
1192 | * 0 - failed to issue initial flogi for @vport | |
1193 | * 1 - successfully issued initial flogi for @vport | |
1194 | **/ | |
dea3101e | 1195 | int |
2e0fef85 | 1196 | lpfc_initial_flogi(struct lpfc_vport *vport) |
dea3101e | 1197 | { |
2e0fef85 | 1198 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
1199 | struct lpfc_nodelist *ndlp; |
1200 | ||
98c9ea5c JS |
1201 | vport->port_state = LPFC_FLOGI; |
1202 | lpfc_set_disctmo(vport); | |
1203 | ||
c9f8735b | 1204 | /* First look for the Fabric ndlp */ |
2e0fef85 | 1205 | ndlp = lpfc_findnode_did(vport, Fabric_DID); |
c9f8735b | 1206 | if (!ndlp) { |
dea3101e | 1207 | /* Cannot find existing Fabric ndlp, so allocate a new one */ |
c9f8735b JW |
1208 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); |
1209 | if (!ndlp) | |
1210 | return 0; | |
2e0fef85 | 1211 | lpfc_nlp_init(vport, ndlp, Fabric_DID); |
6fb120a7 JS |
1212 | /* Set the node type */ |
1213 | ndlp->nlp_type |= NLP_FABRIC; | |
e47c9093 JS |
1214 | /* Put ndlp onto node list */ |
1215 | lpfc_enqueue_node(vport, ndlp); | |
1216 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
1217 | /* re-setup ndlp without removing from node list */ | |
1218 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
1219 | if (!ndlp) | |
1220 | return 0; | |
dea3101e | 1221 | } |
87af33fe | 1222 | |
5ac6b303 | 1223 | if (lpfc_issue_els_flogi(vport, ndlp, 0)) { |
fa4066b6 JS |
1224 | /* This decrement of reference count to node shall kick off |
1225 | * the release of the node. | |
1226 | */ | |
329f9bc7 | 1227 | lpfc_nlp_put(ndlp); |
5ac6b303 JS |
1228 | return 0; |
1229 | } | |
c9f8735b | 1230 | return 1; |
dea3101e JB |
1231 | } |
1232 | ||
e59058c4 | 1233 | /** |
3621a710 | 1234 | * lpfc_initial_fdisc - Issue an initial fabric discovery for a vport |
e59058c4 JS |
1235 | * @vport: pointer to a host virtual N_Port data structure. |
1236 | * | |
1237 | * This routine issues an initial Fabric Discover (FDISC) for the @vport | |
1238 | * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from | |
1239 | * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and | |
1240 | * put it into the @vport's ndlp list. If an inactive ndlp found on the list, | |
1241 | * it will just be enabled and made active. The lpfc_issue_els_fdisc() routine | |
1242 | * is then invoked with the @vport and the ndlp to perform the FDISC for the | |
1243 | * @vport. | |
1244 | * | |
1245 | * Return code | |
1246 | * 0 - failed to issue initial fdisc for @vport | |
1247 | * 1 - successfully issued initial fdisc for @vport | |
1248 | **/ | |
92d7f7b0 JS |
1249 | int |
1250 | lpfc_initial_fdisc(struct lpfc_vport *vport) | |
1251 | { | |
1252 | struct lpfc_hba *phba = vport->phba; | |
1253 | struct lpfc_nodelist *ndlp; | |
1254 | ||
1255 | /* First look for the Fabric ndlp */ | |
1256 | ndlp = lpfc_findnode_did(vport, Fabric_DID); | |
1257 | if (!ndlp) { | |
1258 | /* Cannot find existing Fabric ndlp, so allocate a new one */ | |
1259 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
1260 | if (!ndlp) | |
1261 | return 0; | |
1262 | lpfc_nlp_init(vport, ndlp, Fabric_DID); | |
e47c9093 JS |
1263 | /* Put ndlp onto node list */ |
1264 | lpfc_enqueue_node(vport, ndlp); | |
1265 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
1266 | /* re-setup ndlp without removing from node list */ | |
1267 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
1268 | if (!ndlp) | |
1269 | return 0; | |
92d7f7b0 | 1270 | } |
e47c9093 | 1271 | |
92d7f7b0 | 1272 | if (lpfc_issue_els_fdisc(vport, ndlp, 0)) { |
fa4066b6 JS |
1273 | /* decrement node reference count to trigger the release of |
1274 | * the node. | |
1275 | */ | |
92d7f7b0 | 1276 | lpfc_nlp_put(ndlp); |
fa4066b6 | 1277 | return 0; |
92d7f7b0 JS |
1278 | } |
1279 | return 1; | |
1280 | } | |
87af33fe | 1281 | |
e59058c4 | 1282 | /** |
3621a710 | 1283 | * lpfc_more_plogi - Check and issue remaining plogis for a vport |
e59058c4 JS |
1284 | * @vport: pointer to a host virtual N_Port data structure. |
1285 | * | |
1286 | * This routine checks whether there are more remaining Port Logins | |
1287 | * (PLOGI) to be issued for the @vport. If so, it will invoke the routine | |
1288 | * lpfc_els_disc_plogi() to go through the Node Port Recovery (NPR) nodes | |
1289 | * to issue ELS PLOGIs up to the configured discover threads with the | |
1290 | * @vport (@vport->cfg_discovery_threads). The function also decrement | |
1291 | * the @vport's num_disc_node by 1 if it is not already 0. | |
1292 | **/ | |
87af33fe | 1293 | void |
2e0fef85 | 1294 | lpfc_more_plogi(struct lpfc_vport *vport) |
dea3101e JB |
1295 | { |
1296 | int sentplogi; | |
1297 | ||
2e0fef85 JS |
1298 | if (vport->num_disc_nodes) |
1299 | vport->num_disc_nodes--; | |
dea3101e JB |
1300 | |
1301 | /* Continue discovery with <num_disc_nodes> PLOGIs to go */ | |
e8b62011 JS |
1302 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
1303 | "0232 Continue discovery with %d PLOGIs to go " | |
1304 | "Data: x%x x%x x%x\n", | |
1305 | vport->num_disc_nodes, vport->fc_plogi_cnt, | |
1306 | vport->fc_flag, vport->port_state); | |
dea3101e | 1307 | /* Check to see if there are more PLOGIs to be sent */ |
2e0fef85 JS |
1308 | if (vport->fc_flag & FC_NLP_MORE) |
1309 | /* go thru NPR nodes and issue any remaining ELS PLOGIs */ | |
1310 | sentplogi = lpfc_els_disc_plogi(vport); | |
1311 | ||
dea3101e JB |
1312 | return; |
1313 | } | |
1314 | ||
e59058c4 | 1315 | /** |
3621a710 | 1316 | * lpfc_plogi_confirm_nport - Confirm pologi wwpn matches stored ndlp |
e59058c4 JS |
1317 | * @phba: pointer to lpfc hba data structure. |
1318 | * @prsp: pointer to response IOCB payload. | |
1319 | * @ndlp: pointer to a node-list data structure. | |
1320 | * | |
1321 | * This routine checks and indicates whether the WWPN of an N_Port, retrieved | |
1322 | * from a PLOGI, matches the WWPN that is stored in the @ndlp for that N_POrt. | |
1323 | * The following cases are considered N_Port confirmed: | |
1324 | * 1) The N_Port is a Fabric ndlp; 2) The @ndlp is on vport list and matches | |
1325 | * the WWPN of the N_Port logged into; 3) The @ndlp is not on vport list but | |
1326 | * it does not have WWPN assigned either. If the WWPN is confirmed, the | |
1327 | * pointer to the @ndlp will be returned. If the WWPN is not confirmed: | |
1328 | * 1) if there is a node on vport list other than the @ndlp with the same | |
1329 | * WWPN of the N_Port PLOGI logged into, the lpfc_unreg_rpi() will be invoked | |
1330 | * on that node to release the RPI associated with the node; 2) if there is | |
1331 | * no node found on vport list with the same WWPN of the N_Port PLOGI logged | |
1332 | * into, a new node shall be allocated (or activated). In either case, the | |
1333 | * parameters of the @ndlp shall be copied to the new_ndlp, the @ndlp shall | |
1334 | * be released and the new_ndlp shall be put on to the vport node list and | |
1335 | * its pointer returned as the confirmed node. | |
1336 | * | |
1337 | * Note that before the @ndlp got "released", the keepDID from not-matching | |
1338 | * or inactive "new_ndlp" on the vport node list is assigned to the nlp_DID | |
1339 | * of the @ndlp. This is because the release of @ndlp is actually to put it | |
1340 | * into an inactive state on the vport node list and the vport node list | |
1341 | * management algorithm does not allow two node with a same DID. | |
1342 | * | |
1343 | * Return code | |
1344 | * pointer to the PLOGI N_Port @ndlp | |
1345 | **/ | |
488d1469 | 1346 | static struct lpfc_nodelist * |
92d7f7b0 | 1347 | lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp, |
488d1469 JS |
1348 | struct lpfc_nodelist *ndlp) |
1349 | { | |
2e0fef85 | 1350 | struct lpfc_vport *vport = ndlp->vport; |
488d1469 | 1351 | struct lpfc_nodelist *new_ndlp; |
0ff10d46 JS |
1352 | struct lpfc_rport_data *rdata; |
1353 | struct fc_rport *rport; | |
488d1469 | 1354 | struct serv_parm *sp; |
92d7f7b0 | 1355 | uint8_t name[sizeof(struct lpfc_name)]; |
58da1ffb | 1356 | uint32_t rc, keepDID = 0; |
38b92ef8 JS |
1357 | int put_node; |
1358 | int put_rport; | |
19ca7609 | 1359 | struct lpfc_node_rrqs rrq; |
488d1469 | 1360 | |
2fb9bd8b JS |
1361 | /* Fabric nodes can have the same WWPN so we don't bother searching |
1362 | * by WWPN. Just return the ndlp that was given to us. | |
1363 | */ | |
1364 | if (ndlp->nlp_type & NLP_FABRIC) | |
1365 | return ndlp; | |
1366 | ||
92d7f7b0 | 1367 | sp = (struct serv_parm *) ((uint8_t *) prsp + sizeof(uint32_t)); |
685f0bf7 | 1368 | memset(name, 0, sizeof(struct lpfc_name)); |
488d1469 | 1369 | |
685f0bf7 | 1370 | /* Now we find out if the NPort we are logging into, matches the WWPN |
488d1469 JS |
1371 | * we have for that ndlp. If not, we have some work to do. |
1372 | */ | |
2e0fef85 | 1373 | new_ndlp = lpfc_findnode_wwpn(vport, &sp->portName); |
488d1469 | 1374 | |
e47c9093 | 1375 | if (new_ndlp == ndlp && NLP_CHK_NODE_ACT(new_ndlp)) |
488d1469 | 1376 | return ndlp; |
19ca7609 | 1377 | memset(&rrq.xri_bitmap, 0, sizeof(new_ndlp->active_rrqs.xri_bitmap)); |
488d1469 JS |
1378 | |
1379 | if (!new_ndlp) { | |
2e0fef85 JS |
1380 | rc = memcmp(&ndlp->nlp_portname, name, |
1381 | sizeof(struct lpfc_name)); | |
92795650 JS |
1382 | if (!rc) |
1383 | return ndlp; | |
488d1469 JS |
1384 | new_ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_ATOMIC); |
1385 | if (!new_ndlp) | |
1386 | return ndlp; | |
2e0fef85 | 1387 | lpfc_nlp_init(vport, new_ndlp, ndlp->nlp_DID); |
e47c9093 | 1388 | } else if (!NLP_CHK_NODE_ACT(new_ndlp)) { |
58da1ffb JS |
1389 | rc = memcmp(&ndlp->nlp_portname, name, |
1390 | sizeof(struct lpfc_name)); | |
1391 | if (!rc) | |
1392 | return ndlp; | |
e47c9093 JS |
1393 | new_ndlp = lpfc_enable_node(vport, new_ndlp, |
1394 | NLP_STE_UNUSED_NODE); | |
1395 | if (!new_ndlp) | |
1396 | return ndlp; | |
58da1ffb | 1397 | keepDID = new_ndlp->nlp_DID; |
19ca7609 JS |
1398 | if (phba->sli_rev == LPFC_SLI_REV4) |
1399 | memcpy(&rrq.xri_bitmap, | |
1400 | &new_ndlp->active_rrqs.xri_bitmap, | |
1401 | sizeof(new_ndlp->active_rrqs.xri_bitmap)); | |
1402 | } else { | |
58da1ffb | 1403 | keepDID = new_ndlp->nlp_DID; |
19ca7609 JS |
1404 | if (phba->sli_rev == LPFC_SLI_REV4) |
1405 | memcpy(&rrq.xri_bitmap, | |
1406 | &new_ndlp->active_rrqs.xri_bitmap, | |
1407 | sizeof(new_ndlp->active_rrqs.xri_bitmap)); | |
1408 | } | |
488d1469 | 1409 | |
2e0fef85 | 1410 | lpfc_unreg_rpi(vport, new_ndlp); |
488d1469 | 1411 | new_ndlp->nlp_DID = ndlp->nlp_DID; |
92795650 | 1412 | new_ndlp->nlp_prev_state = ndlp->nlp_prev_state; |
19ca7609 JS |
1413 | if (phba->sli_rev == LPFC_SLI_REV4) |
1414 | memcpy(new_ndlp->active_rrqs.xri_bitmap, | |
1415 | &ndlp->active_rrqs.xri_bitmap, | |
1416 | sizeof(ndlp->active_rrqs.xri_bitmap)); | |
0ff10d46 JS |
1417 | |
1418 | if (ndlp->nlp_flag & NLP_NPR_2B_DISC) | |
1419 | new_ndlp->nlp_flag |= NLP_NPR_2B_DISC; | |
1420 | ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; | |
1421 | ||
e47c9093 | 1422 | /* Set state will put new_ndlp on to node list if not already done */ |
2e0fef85 | 1423 | lpfc_nlp_set_state(vport, new_ndlp, ndlp->nlp_state); |
488d1469 | 1424 | |
2e0fef85 | 1425 | /* Move this back to NPR state */ |
87af33fe JS |
1426 | if (memcmp(&ndlp->nlp_portname, name, sizeof(struct lpfc_name)) == 0) { |
1427 | /* The new_ndlp is replacing ndlp totally, so we need | |
1428 | * to put ndlp on UNUSED list and try to free it. | |
1429 | */ | |
0ff10d46 JS |
1430 | |
1431 | /* Fix up the rport accordingly */ | |
1432 | rport = ndlp->rport; | |
1433 | if (rport) { | |
1434 | rdata = rport->dd_data; | |
1435 | if (rdata->pnode == ndlp) { | |
1436 | lpfc_nlp_put(ndlp); | |
1437 | ndlp->rport = NULL; | |
1438 | rdata->pnode = lpfc_nlp_get(new_ndlp); | |
1439 | new_ndlp->rport = rport; | |
1440 | } | |
1441 | new_ndlp->nlp_type = ndlp->nlp_type; | |
1442 | } | |
58da1ffb JS |
1443 | /* We shall actually free the ndlp with both nlp_DID and |
1444 | * nlp_portname fields equals 0 to avoid any ndlp on the | |
1445 | * nodelist never to be used. | |
1446 | */ | |
1447 | if (ndlp->nlp_DID == 0) { | |
1448 | spin_lock_irq(&phba->ndlp_lock); | |
1449 | NLP_SET_FREE_REQ(ndlp); | |
1450 | spin_unlock_irq(&phba->ndlp_lock); | |
1451 | } | |
0ff10d46 | 1452 | |
58da1ffb JS |
1453 | /* Two ndlps cannot have the same did on the nodelist */ |
1454 | ndlp->nlp_DID = keepDID; | |
19ca7609 JS |
1455 | if (phba->sli_rev == LPFC_SLI_REV4) |
1456 | memcpy(&ndlp->active_rrqs.xri_bitmap, | |
1457 | &rrq.xri_bitmap, | |
1458 | sizeof(ndlp->active_rrqs.xri_bitmap)); | |
2e0fef85 | 1459 | lpfc_drop_node(vport, ndlp); |
87af33fe | 1460 | } |
92795650 | 1461 | else { |
2e0fef85 | 1462 | lpfc_unreg_rpi(vport, ndlp); |
58da1ffb JS |
1463 | /* Two ndlps cannot have the same did */ |
1464 | ndlp->nlp_DID = keepDID; | |
19ca7609 JS |
1465 | if (phba->sli_rev == LPFC_SLI_REV4) |
1466 | memcpy(&ndlp->active_rrqs.xri_bitmap, | |
1467 | &rrq.xri_bitmap, | |
1468 | sizeof(ndlp->active_rrqs.xri_bitmap)); | |
2e0fef85 | 1469 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
38b92ef8 JS |
1470 | /* Since we are swapping the ndlp passed in with the new one |
1471 | * and the did has already been swapped, copy over the | |
1472 | * state and names. | |
1473 | */ | |
1474 | memcpy(&new_ndlp->nlp_portname, &ndlp->nlp_portname, | |
1475 | sizeof(struct lpfc_name)); | |
1476 | memcpy(&new_ndlp->nlp_nodename, &ndlp->nlp_nodename, | |
1477 | sizeof(struct lpfc_name)); | |
1478 | new_ndlp->nlp_state = ndlp->nlp_state; | |
1479 | /* Fix up the rport accordingly */ | |
1480 | rport = ndlp->rport; | |
1481 | if (rport) { | |
1482 | rdata = rport->dd_data; | |
1483 | put_node = rdata->pnode != NULL; | |
1484 | put_rport = ndlp->rport != NULL; | |
1485 | rdata->pnode = NULL; | |
1486 | ndlp->rport = NULL; | |
1487 | if (put_node) | |
1488 | lpfc_nlp_put(ndlp); | |
1489 | if (put_rport) | |
1490 | put_device(&rport->dev); | |
1491 | } | |
92795650 | 1492 | } |
488d1469 JS |
1493 | return new_ndlp; |
1494 | } | |
1495 | ||
e59058c4 | 1496 | /** |
3621a710 | 1497 | * lpfc_end_rscn - Check and handle more rscn for a vport |
e59058c4 JS |
1498 | * @vport: pointer to a host virtual N_Port data structure. |
1499 | * | |
1500 | * This routine checks whether more Registration State Change | |
1501 | * Notifications (RSCNs) came in while the discovery state machine was in | |
1502 | * the FC_RSCN_MODE. If so, the lpfc_els_handle_rscn() routine will be | |
1503 | * invoked to handle the additional RSCNs for the @vport. Otherwise, the | |
1504 | * FC_RSCN_MODE bit will be cleared with the @vport to mark as the end of | |
1505 | * handling the RSCNs. | |
1506 | **/ | |
87af33fe JS |
1507 | void |
1508 | lpfc_end_rscn(struct lpfc_vport *vport) | |
1509 | { | |
1510 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
1511 | ||
1512 | if (vport->fc_flag & FC_RSCN_MODE) { | |
1513 | /* | |
1514 | * Check to see if more RSCNs came in while we were | |
1515 | * processing this one. | |
1516 | */ | |
1517 | if (vport->fc_rscn_id_cnt || | |
1518 | (vport->fc_flag & FC_RSCN_DISCOVERY) != 0) | |
1519 | lpfc_els_handle_rscn(vport); | |
1520 | else { | |
1521 | spin_lock_irq(shost->host_lock); | |
1522 | vport->fc_flag &= ~FC_RSCN_MODE; | |
1523 | spin_unlock_irq(shost->host_lock); | |
1524 | } | |
1525 | } | |
1526 | } | |
1527 | ||
19ca7609 JS |
1528 | /** |
1529 | * lpfc_cmpl_els_rrq - Completion handled for els RRQs. | |
1530 | * @phba: pointer to lpfc hba data structure. | |
1531 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
1532 | * @rspiocb: pointer to lpfc response iocb data structure. | |
1533 | * | |
1534 | * This routine will call the clear rrq function to free the rrq and | |
1535 | * clear the xri's bit in the ndlp's xri_bitmap. If the ndlp does not | |
1536 | * exist then the clear_rrq is still called because the rrq needs to | |
1537 | * be freed. | |
1538 | **/ | |
1539 | ||
1540 | static void | |
1541 | lpfc_cmpl_els_rrq(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
1542 | struct lpfc_iocbq *rspiocb) | |
1543 | { | |
1544 | struct lpfc_vport *vport = cmdiocb->vport; | |
1545 | IOCB_t *irsp; | |
1546 | struct lpfc_nodelist *ndlp; | |
1547 | struct lpfc_node_rrq *rrq; | |
1548 | ||
1549 | /* we pass cmdiocb to state machine which needs rspiocb as well */ | |
1550 | rrq = cmdiocb->context_un.rrq; | |
1551 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
1552 | ||
1553 | irsp = &rspiocb->iocb; | |
1554 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, | |
1555 | "RRQ cmpl: status:x%x/x%x did:x%x", | |
1556 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1557 | irsp->un.elsreq64.remoteID); | |
1558 | ||
1559 | ndlp = lpfc_findnode_did(vport, irsp->un.elsreq64.remoteID); | |
1560 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || ndlp != rrq->ndlp) { | |
1561 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
1562 | "2882 RRQ completes to NPort x%x " | |
1563 | "with no ndlp. Data: x%x x%x x%x\n", | |
1564 | irsp->un.elsreq64.remoteID, | |
1565 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1566 | irsp->ulpIoTag); | |
1567 | goto out; | |
1568 | } | |
1569 | ||
1570 | /* rrq completes to NPort <nlp_DID> */ | |
1571 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
1572 | "2880 RRQ completes to NPort x%x " | |
1573 | "Data: x%x x%x x%x x%x x%x\n", | |
1574 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
1575 | irsp->ulpTimeout, rrq->xritag, rrq->rxid); | |
1576 | ||
1577 | if (irsp->ulpStatus) { | |
1578 | /* Check for retry */ | |
1579 | /* RRQ failed Don't print the vport to vport rjts */ | |
1580 | if (irsp->ulpStatus != IOSTAT_LS_RJT || | |
1581 | (((irsp->un.ulpWord[4]) >> 16 != LSRJT_INVALID_CMD) && | |
1582 | ((irsp->un.ulpWord[4]) >> 16 != LSRJT_UNABLE_TPC)) || | |
1583 | (phba)->pport->cfg_log_verbose & LOG_ELS) | |
1584 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
1585 | "2881 RRQ failure DID:%06X Status:x%x/x%x\n", | |
1586 | ndlp->nlp_DID, irsp->ulpStatus, | |
1587 | irsp->un.ulpWord[4]); | |
1588 | } | |
1589 | out: | |
1590 | if (rrq) | |
1591 | lpfc_clr_rrq_active(phba, rrq->xritag, rrq); | |
1592 | lpfc_els_free_iocb(phba, cmdiocb); | |
1593 | return; | |
1594 | } | |
e59058c4 | 1595 | /** |
3621a710 | 1596 | * lpfc_cmpl_els_plogi - Completion callback function for plogi |
e59058c4 JS |
1597 | * @phba: pointer to lpfc hba data structure. |
1598 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
1599 | * @rspiocb: pointer to lpfc response iocb data structure. | |
1600 | * | |
1601 | * This routine is the completion callback function for issuing the Port | |
1602 | * Login (PLOGI) command. For PLOGI completion, there must be an active | |
1603 | * ndlp on the vport node list that matches the remote node ID from the | |
25985edc | 1604 | * PLOGI response IOCB. If such ndlp does not exist, the PLOGI is simply |
e59058c4 JS |
1605 | * ignored and command IOCB released. The PLOGI response IOCB status is |
1606 | * checked for error conditons. If there is error status reported, PLOGI | |
1607 | * retry shall be attempted by invoking the lpfc_els_retry() routine. | |
1608 | * Otherwise, the lpfc_plogi_confirm_nport() routine shall be invoked on | |
1609 | * the ndlp and the NLP_EVT_CMPL_PLOGI state to the Discover State Machine | |
1610 | * (DSM) is set for this PLOGI completion. Finally, it checks whether | |
1611 | * there are additional N_Port nodes with the vport that need to perform | |
1612 | * PLOGI. If so, the lpfc_more_plogi() routine is invoked to issue addition | |
1613 | * PLOGIs. | |
1614 | **/ | |
dea3101e | 1615 | static void |
2e0fef85 JS |
1616 | lpfc_cmpl_els_plogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
1617 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 1618 | { |
2e0fef85 JS |
1619 | struct lpfc_vport *vport = cmdiocb->vport; |
1620 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e | 1621 | IOCB_t *irsp; |
dea3101e | 1622 | struct lpfc_nodelist *ndlp; |
92795650 | 1623 | struct lpfc_dmabuf *prsp; |
dea3101e JB |
1624 | int disc, rc, did, type; |
1625 | ||
dea3101e JB |
1626 | /* we pass cmdiocb to state machine which needs rspiocb as well */ |
1627 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
1628 | ||
1629 | irsp = &rspiocb->iocb; | |
858c9f6c JS |
1630 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1631 | "PLOGI cmpl: status:x%x/x%x did:x%x", | |
1632 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1633 | irsp->un.elsreq64.remoteID); | |
1634 | ||
2e0fef85 | 1635 | ndlp = lpfc_findnode_did(vport, irsp->un.elsreq64.remoteID); |
e47c9093 | 1636 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { |
e8b62011 JS |
1637 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
1638 | "0136 PLOGI completes to NPort x%x " | |
1639 | "with no ndlp. Data: x%x x%x x%x\n", | |
1640 | irsp->un.elsreq64.remoteID, | |
1641 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1642 | irsp->ulpIoTag); | |
488d1469 | 1643 | goto out; |
ed957684 | 1644 | } |
dea3101e JB |
1645 | |
1646 | /* Since ndlp can be freed in the disc state machine, note if this node | |
1647 | * is being used during discovery. | |
1648 | */ | |
2e0fef85 | 1649 | spin_lock_irq(shost->host_lock); |
dea3101e | 1650 | disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC); |
488d1469 | 1651 | ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; |
2e0fef85 | 1652 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
1653 | rc = 0; |
1654 | ||
1655 | /* PLOGI completes to NPort <nlp_DID> */ | |
e8b62011 JS |
1656 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
1657 | "0102 PLOGI completes to NPort x%x " | |
1658 | "Data: x%x x%x x%x x%x x%x\n", | |
1659 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
1660 | irsp->ulpTimeout, disc, vport->num_disc_nodes); | |
dea3101e | 1661 | /* Check to see if link went down during discovery */ |
2e0fef85 JS |
1662 | if (lpfc_els_chk_latt(vport)) { |
1663 | spin_lock_irq(shost->host_lock); | |
dea3101e | 1664 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 | 1665 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
1666 | goto out; |
1667 | } | |
1668 | ||
1669 | /* ndlp could be freed in DSM, save these values now */ | |
1670 | type = ndlp->nlp_type; | |
1671 | did = ndlp->nlp_DID; | |
1672 | ||
1673 | if (irsp->ulpStatus) { | |
1674 | /* Check for retry */ | |
1675 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { | |
1676 | /* ELS command is being retried */ | |
1677 | if (disc) { | |
2e0fef85 | 1678 | spin_lock_irq(shost->host_lock); |
dea3101e | 1679 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 | 1680 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
1681 | } |
1682 | goto out; | |
1683 | } | |
2a9bf3d0 JS |
1684 | /* PLOGI failed Don't print the vport to vport rjts */ |
1685 | if (irsp->ulpStatus != IOSTAT_LS_RJT || | |
1686 | (((irsp->un.ulpWord[4]) >> 16 != LSRJT_INVALID_CMD) && | |
1687 | ((irsp->un.ulpWord[4]) >> 16 != LSRJT_UNABLE_TPC)) || | |
1688 | (phba)->pport->cfg_log_verbose & LOG_ELS) | |
1689 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
e40a02c1 JS |
1690 | "2753 PLOGI failure DID:%06X Status:x%x/x%x\n", |
1691 | ndlp->nlp_DID, irsp->ulpStatus, | |
1692 | irsp->un.ulpWord[4]); | |
dea3101e | 1693 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ |
e47c9093 | 1694 | if (lpfc_error_lost_link(irsp)) |
c9f8735b | 1695 | rc = NLP_STE_FREED_NODE; |
e47c9093 | 1696 | else |
2e0fef85 | 1697 | rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 1698 | NLP_EVT_CMPL_PLOGI); |
dea3101e JB |
1699 | } else { |
1700 | /* Good status, call state machine */ | |
92795650 | 1701 | prsp = list_entry(((struct lpfc_dmabuf *) |
92d7f7b0 JS |
1702 | cmdiocb->context2)->list.next, |
1703 | struct lpfc_dmabuf, list); | |
1704 | ndlp = lpfc_plogi_confirm_nport(phba, prsp->virt, ndlp); | |
2e0fef85 | 1705 | rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 1706 | NLP_EVT_CMPL_PLOGI); |
dea3101e JB |
1707 | } |
1708 | ||
2e0fef85 | 1709 | if (disc && vport->num_disc_nodes) { |
dea3101e | 1710 | /* Check to see if there are more PLOGIs to be sent */ |
2e0fef85 | 1711 | lpfc_more_plogi(vport); |
dea3101e | 1712 | |
2e0fef85 JS |
1713 | if (vport->num_disc_nodes == 0) { |
1714 | spin_lock_irq(shost->host_lock); | |
1715 | vport->fc_flag &= ~FC_NDISC_ACTIVE; | |
1716 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 1717 | |
2e0fef85 | 1718 | lpfc_can_disctmo(vport); |
87af33fe | 1719 | lpfc_end_rscn(vport); |
dea3101e JB |
1720 | } |
1721 | } | |
1722 | ||
1723 | out: | |
1724 | lpfc_els_free_iocb(phba, cmdiocb); | |
1725 | return; | |
1726 | } | |
1727 | ||
e59058c4 | 1728 | /** |
3621a710 | 1729 | * lpfc_issue_els_plogi - Issue an plogi iocb command for a vport |
e59058c4 JS |
1730 | * @vport: pointer to a host virtual N_Port data structure. |
1731 | * @did: destination port identifier. | |
1732 | * @retry: number of retries to the command IOCB. | |
1733 | * | |
1734 | * This routine issues a Port Login (PLOGI) command to a remote N_Port | |
1735 | * (with the @did) for a @vport. Before issuing a PLOGI to a remote N_Port, | |
1736 | * the ndlp with the remote N_Port DID must exist on the @vport's ndlp list. | |
1737 | * This routine constructs the proper feilds of the PLOGI IOCB and invokes | |
1738 | * the lpfc_sli_issue_iocb() routine to send out PLOGI ELS command. | |
1739 | * | |
1740 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
1741 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
1742 | * will be stored into the context1 field of the IOCB for the completion | |
1743 | * callback function to the PLOGI ELS command. | |
1744 | * | |
1745 | * Return code | |
1746 | * 0 - Successfully issued a plogi for @vport | |
1747 | * 1 - failed to issue a plogi for @vport | |
1748 | **/ | |
dea3101e | 1749 | int |
2e0fef85 | 1750 | lpfc_issue_els_plogi(struct lpfc_vport *vport, uint32_t did, uint8_t retry) |
dea3101e | 1751 | { |
2e0fef85 | 1752 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
1753 | struct serv_parm *sp; |
1754 | IOCB_t *icmd; | |
98c9ea5c | 1755 | struct lpfc_nodelist *ndlp; |
dea3101e | 1756 | struct lpfc_iocbq *elsiocb; |
dea3101e JB |
1757 | struct lpfc_sli *psli; |
1758 | uint8_t *pcmd; | |
1759 | uint16_t cmdsize; | |
92d7f7b0 | 1760 | int ret; |
dea3101e JB |
1761 | |
1762 | psli = &phba->sli; | |
dea3101e | 1763 | |
98c9ea5c | 1764 | ndlp = lpfc_findnode_did(vport, did); |
e47c9093 JS |
1765 | if (ndlp && !NLP_CHK_NODE_ACT(ndlp)) |
1766 | ndlp = NULL; | |
98c9ea5c | 1767 | |
e47c9093 | 1768 | /* If ndlp is not NULL, we will bump the reference count on it */ |
92d7f7b0 | 1769 | cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); |
98c9ea5c | 1770 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did, |
2e0fef85 | 1771 | ELS_CMD_PLOGI); |
c9f8735b JW |
1772 | if (!elsiocb) |
1773 | return 1; | |
dea3101e JB |
1774 | |
1775 | icmd = &elsiocb->iocb; | |
1776 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
1777 | ||
1778 | /* For PLOGI request, remainder of payload is service parameters */ | |
1779 | *((uint32_t *) (pcmd)) = ELS_CMD_PLOGI; | |
92d7f7b0 JS |
1780 | pcmd += sizeof(uint32_t); |
1781 | memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); | |
dea3101e JB |
1782 | sp = (struct serv_parm *) pcmd; |
1783 | ||
5ac6b303 JS |
1784 | /* |
1785 | * If we are a N-port connected to a Fabric, fix-up paramm's so logins | |
1786 | * to device on remote loops work. | |
1787 | */ | |
1788 | if ((vport->fc_flag & FC_FABRIC) && !(vport->fc_flag & FC_PUBLIC_LOOP)) | |
1789 | sp->cmn.altBbCredit = 1; | |
1790 | ||
dea3101e JB |
1791 | if (sp->cmn.fcphLow < FC_PH_4_3) |
1792 | sp->cmn.fcphLow = FC_PH_4_3; | |
1793 | ||
1794 | if (sp->cmn.fcphHigh < FC_PH3) | |
1795 | sp->cmn.fcphHigh = FC_PH3; | |
1796 | ||
858c9f6c JS |
1797 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1798 | "Issue PLOGI: did:x%x", | |
1799 | did, 0, 0); | |
1800 | ||
dea3101e JB |
1801 | phba->fc_stat.elsXmitPLOGI++; |
1802 | elsiocb->iocb_cmpl = lpfc_cmpl_els_plogi; | |
3772a991 | 1803 | ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
92d7f7b0 JS |
1804 | |
1805 | if (ret == IOCB_ERROR) { | |
dea3101e | 1806 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 1807 | return 1; |
dea3101e | 1808 | } |
c9f8735b | 1809 | return 0; |
dea3101e JB |
1810 | } |
1811 | ||
e59058c4 | 1812 | /** |
3621a710 | 1813 | * lpfc_cmpl_els_prli - Completion callback function for prli |
e59058c4 JS |
1814 | * @phba: pointer to lpfc hba data structure. |
1815 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
1816 | * @rspiocb: pointer to lpfc response iocb data structure. | |
1817 | * | |
1818 | * This routine is the completion callback function for a Process Login | |
1819 | * (PRLI) ELS command. The PRLI response IOCB status is checked for error | |
1820 | * status. If there is error status reported, PRLI retry shall be attempted | |
1821 | * by invoking the lpfc_els_retry() routine. Otherwise, the state | |
1822 | * NLP_EVT_CMPL_PRLI is sent to the Discover State Machine (DSM) for this | |
1823 | * ndlp to mark the PRLI completion. | |
1824 | **/ | |
dea3101e | 1825 | static void |
2e0fef85 JS |
1826 | lpfc_cmpl_els_prli(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
1827 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 1828 | { |
2e0fef85 JS |
1829 | struct lpfc_vport *vport = cmdiocb->vport; |
1830 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e JB |
1831 | IOCB_t *irsp; |
1832 | struct lpfc_sli *psli; | |
1833 | struct lpfc_nodelist *ndlp; | |
1834 | ||
1835 | psli = &phba->sli; | |
1836 | /* we pass cmdiocb to state machine which needs rspiocb as well */ | |
1837 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
1838 | ||
1839 | irsp = &(rspiocb->iocb); | |
1840 | ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
2e0fef85 | 1841 | spin_lock_irq(shost->host_lock); |
dea3101e | 1842 | ndlp->nlp_flag &= ~NLP_PRLI_SND; |
2e0fef85 | 1843 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1844 | |
858c9f6c JS |
1845 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1846 | "PRLI cmpl: status:x%x/x%x did:x%x", | |
1847 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1848 | ndlp->nlp_DID); | |
dea3101e | 1849 | /* PRLI completes to NPort <nlp_DID> */ |
e8b62011 JS |
1850 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
1851 | "0103 PRLI completes to NPort x%x " | |
1852 | "Data: x%x x%x x%x x%x\n", | |
1853 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
1854 | irsp->ulpTimeout, vport->num_disc_nodes); | |
dea3101e | 1855 | |
2e0fef85 | 1856 | vport->fc_prli_sent--; |
dea3101e | 1857 | /* Check to see if link went down during discovery */ |
2e0fef85 | 1858 | if (lpfc_els_chk_latt(vport)) |
dea3101e JB |
1859 | goto out; |
1860 | ||
1861 | if (irsp->ulpStatus) { | |
1862 | /* Check for retry */ | |
1863 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { | |
1864 | /* ELS command is being retried */ | |
1865 | goto out; | |
1866 | } | |
1867 | /* PRLI failed */ | |
e40a02c1 JS |
1868 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
1869 | "2754 PRLI failure DID:%06X Status:x%x/x%x\n", | |
1870 | ndlp->nlp_DID, irsp->ulpStatus, | |
1871 | irsp->un.ulpWord[4]); | |
dea3101e | 1872 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ |
e47c9093 | 1873 | if (lpfc_error_lost_link(irsp)) |
dea3101e | 1874 | goto out; |
e47c9093 | 1875 | else |
2e0fef85 | 1876 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 1877 | NLP_EVT_CMPL_PRLI); |
e47c9093 | 1878 | } else |
dea3101e | 1879 | /* Good status, call state machine */ |
2e0fef85 | 1880 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 1881 | NLP_EVT_CMPL_PRLI); |
dea3101e JB |
1882 | out: |
1883 | lpfc_els_free_iocb(phba, cmdiocb); | |
1884 | return; | |
1885 | } | |
1886 | ||
e59058c4 | 1887 | /** |
3621a710 | 1888 | * lpfc_issue_els_prli - Issue a prli iocb command for a vport |
e59058c4 JS |
1889 | * @vport: pointer to a host virtual N_Port data structure. |
1890 | * @ndlp: pointer to a node-list data structure. | |
1891 | * @retry: number of retries to the command IOCB. | |
1892 | * | |
1893 | * This routine issues a Process Login (PRLI) ELS command for the | |
1894 | * @vport. The PRLI service parameters are set up in the payload of the | |
1895 | * PRLI Request command and the pointer to lpfc_cmpl_els_prli() routine | |
1896 | * is put to the IOCB completion callback func field before invoking the | |
1897 | * routine lpfc_sli_issue_iocb() to send out PRLI command. | |
1898 | * | |
1899 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
1900 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
1901 | * will be stored into the context1 field of the IOCB for the completion | |
1902 | * callback function to the PRLI ELS command. | |
1903 | * | |
1904 | * Return code | |
1905 | * 0 - successfully issued prli iocb command for @vport | |
1906 | * 1 - failed to issue prli iocb command for @vport | |
1907 | **/ | |
dea3101e | 1908 | int |
2e0fef85 | 1909 | lpfc_issue_els_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
dea3101e JB |
1910 | uint8_t retry) |
1911 | { | |
2e0fef85 JS |
1912 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
1913 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
1914 | PRLI *npr; |
1915 | IOCB_t *icmd; | |
1916 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
1917 | uint8_t *pcmd; |
1918 | uint16_t cmdsize; | |
1919 | ||
92d7f7b0 | 1920 | cmdsize = (sizeof(uint32_t) + sizeof(PRLI)); |
2e0fef85 JS |
1921 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
1922 | ndlp->nlp_DID, ELS_CMD_PRLI); | |
488d1469 | 1923 | if (!elsiocb) |
c9f8735b | 1924 | return 1; |
dea3101e JB |
1925 | |
1926 | icmd = &elsiocb->iocb; | |
1927 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
1928 | ||
1929 | /* For PRLI request, remainder of payload is service parameters */ | |
92d7f7b0 | 1930 | memset(pcmd, 0, (sizeof(PRLI) + sizeof(uint32_t))); |
dea3101e | 1931 | *((uint32_t *) (pcmd)) = ELS_CMD_PRLI; |
92d7f7b0 | 1932 | pcmd += sizeof(uint32_t); |
dea3101e JB |
1933 | |
1934 | /* For PRLI, remainder of payload is PRLI parameter page */ | |
1935 | npr = (PRLI *) pcmd; | |
1936 | /* | |
1937 | * If our firmware version is 3.20 or later, | |
1938 | * set the following bits for FC-TAPE support. | |
1939 | */ | |
1940 | if (phba->vpd.rev.feaLevelHigh >= 0x02) { | |
1941 | npr->ConfmComplAllowed = 1; | |
1942 | npr->Retry = 1; | |
1943 | npr->TaskRetryIdReq = 1; | |
1944 | } | |
1945 | npr->estabImagePair = 1; | |
1946 | npr->readXferRdyDis = 1; | |
1947 | ||
1948 | /* For FCP support */ | |
1949 | npr->prliType = PRLI_FCP_TYPE; | |
1950 | npr->initiatorFunc = 1; | |
1951 | ||
858c9f6c JS |
1952 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1953 | "Issue PRLI: did:x%x", | |
1954 | ndlp->nlp_DID, 0, 0); | |
1955 | ||
dea3101e JB |
1956 | phba->fc_stat.elsXmitPRLI++; |
1957 | elsiocb->iocb_cmpl = lpfc_cmpl_els_prli; | |
2e0fef85 | 1958 | spin_lock_irq(shost->host_lock); |
dea3101e | 1959 | ndlp->nlp_flag |= NLP_PRLI_SND; |
2e0fef85 | 1960 | spin_unlock_irq(shost->host_lock); |
3772a991 JS |
1961 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
1962 | IOCB_ERROR) { | |
2e0fef85 | 1963 | spin_lock_irq(shost->host_lock); |
dea3101e | 1964 | ndlp->nlp_flag &= ~NLP_PRLI_SND; |
2e0fef85 | 1965 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1966 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 1967 | return 1; |
dea3101e | 1968 | } |
2e0fef85 | 1969 | vport->fc_prli_sent++; |
c9f8735b | 1970 | return 0; |
dea3101e JB |
1971 | } |
1972 | ||
90160e01 | 1973 | /** |
3621a710 | 1974 | * lpfc_rscn_disc - Perform rscn discovery for a vport |
90160e01 JS |
1975 | * @vport: pointer to a host virtual N_Port data structure. |
1976 | * | |
1977 | * This routine performs Registration State Change Notification (RSCN) | |
1978 | * discovery for a @vport. If the @vport's node port recovery count is not | |
1979 | * zero, it will invoke the lpfc_els_disc_plogi() to perform PLOGI for all | |
1980 | * the nodes that need recovery. If none of the PLOGI were needed through | |
1981 | * the lpfc_els_disc_plogi() routine, the lpfc_end_rscn() routine shall be | |
1982 | * invoked to check and handle possible more RSCN came in during the period | |
1983 | * of processing the current ones. | |
1984 | **/ | |
1985 | static void | |
1986 | lpfc_rscn_disc(struct lpfc_vport *vport) | |
1987 | { | |
1988 | lpfc_can_disctmo(vport); | |
1989 | ||
1990 | /* RSCN discovery */ | |
1991 | /* go thru NPR nodes and issue ELS PLOGIs */ | |
1992 | if (vport->fc_npr_cnt) | |
1993 | if (lpfc_els_disc_plogi(vport)) | |
1994 | return; | |
1995 | ||
1996 | lpfc_end_rscn(vport); | |
1997 | } | |
1998 | ||
1999 | /** | |
3621a710 | 2000 | * lpfc_adisc_done - Complete the adisc phase of discovery |
90160e01 JS |
2001 | * @vport: pointer to lpfc_vport hba data structure that finished all ADISCs. |
2002 | * | |
2003 | * This function is called when the final ADISC is completed during discovery. | |
2004 | * This function handles clearing link attention or issuing reg_vpi depending | |
2005 | * on whether npiv is enabled. This function also kicks off the PLOGI phase of | |
2006 | * discovery. | |
2007 | * This function is called with no locks held. | |
2008 | **/ | |
2009 | static void | |
2010 | lpfc_adisc_done(struct lpfc_vport *vport) | |
2011 | { | |
2012 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
2013 | struct lpfc_hba *phba = vport->phba; | |
2014 | ||
2015 | /* | |
2016 | * For NPIV, cmpl_reg_vpi will set port_state to READY, | |
2017 | * and continue discovery. | |
2018 | */ | |
2019 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && | |
6fb120a7 JS |
2020 | !(vport->fc_flag & FC_RSCN_MODE) && |
2021 | (phba->sli_rev < LPFC_SLI_REV4)) { | |
90160e01 JS |
2022 | lpfc_issue_reg_vpi(phba, vport); |
2023 | return; | |
2024 | } | |
2025 | /* | |
2026 | * For SLI2, we need to set port_state to READY | |
2027 | * and continue discovery. | |
2028 | */ | |
2029 | if (vport->port_state < LPFC_VPORT_READY) { | |
2030 | /* If we get here, there is nothing to ADISC */ | |
2031 | if (vport->port_type == LPFC_PHYSICAL_PORT) | |
2032 | lpfc_issue_clear_la(phba, vport); | |
2033 | if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) { | |
2034 | vport->num_disc_nodes = 0; | |
2035 | /* go thru NPR list, issue ELS PLOGIs */ | |
2036 | if (vport->fc_npr_cnt) | |
2037 | lpfc_els_disc_plogi(vport); | |
2038 | if (!vport->num_disc_nodes) { | |
2039 | spin_lock_irq(shost->host_lock); | |
2040 | vport->fc_flag &= ~FC_NDISC_ACTIVE; | |
2041 | spin_unlock_irq(shost->host_lock); | |
2042 | lpfc_can_disctmo(vport); | |
2043 | lpfc_end_rscn(vport); | |
2044 | } | |
2045 | } | |
2046 | vport->port_state = LPFC_VPORT_READY; | |
2047 | } else | |
2048 | lpfc_rscn_disc(vport); | |
2049 | } | |
2050 | ||
e59058c4 | 2051 | /** |
3621a710 | 2052 | * lpfc_more_adisc - Issue more adisc as needed |
e59058c4 JS |
2053 | * @vport: pointer to a host virtual N_Port data structure. |
2054 | * | |
2055 | * This routine determines whether there are more ndlps on a @vport | |
2056 | * node list need to have Address Discover (ADISC) issued. If so, it will | |
2057 | * invoke the lpfc_els_disc_adisc() routine to issue ADISC on the @vport's | |
2058 | * remaining nodes which need to have ADISC sent. | |
2059 | **/ | |
0ff10d46 | 2060 | void |
2e0fef85 | 2061 | lpfc_more_adisc(struct lpfc_vport *vport) |
dea3101e JB |
2062 | { |
2063 | int sentadisc; | |
2064 | ||
2e0fef85 JS |
2065 | if (vport->num_disc_nodes) |
2066 | vport->num_disc_nodes--; | |
dea3101e | 2067 | /* Continue discovery with <num_disc_nodes> ADISCs to go */ |
e8b62011 JS |
2068 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
2069 | "0210 Continue discovery with %d ADISCs to go " | |
2070 | "Data: x%x x%x x%x\n", | |
2071 | vport->num_disc_nodes, vport->fc_adisc_cnt, | |
2072 | vport->fc_flag, vport->port_state); | |
dea3101e | 2073 | /* Check to see if there are more ADISCs to be sent */ |
2e0fef85 JS |
2074 | if (vport->fc_flag & FC_NLP_MORE) { |
2075 | lpfc_set_disctmo(vport); | |
2076 | /* go thru NPR nodes and issue any remaining ELS ADISCs */ | |
2077 | sentadisc = lpfc_els_disc_adisc(vport); | |
dea3101e | 2078 | } |
90160e01 JS |
2079 | if (!vport->num_disc_nodes) |
2080 | lpfc_adisc_done(vport); | |
dea3101e JB |
2081 | return; |
2082 | } | |
2083 | ||
e59058c4 | 2084 | /** |
3621a710 | 2085 | * lpfc_cmpl_els_adisc - Completion callback function for adisc |
e59058c4 JS |
2086 | * @phba: pointer to lpfc hba data structure. |
2087 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
2088 | * @rspiocb: pointer to lpfc response iocb data structure. | |
2089 | * | |
2090 | * This routine is the completion function for issuing the Address Discover | |
2091 | * (ADISC) command. It first checks to see whether link went down during | |
2092 | * the discovery process. If so, the node will be marked as node port | |
2093 | * recovery for issuing discover IOCB by the link attention handler and | |
2094 | * exit. Otherwise, the response status is checked. If error was reported | |
2095 | * in the response status, the ADISC command shall be retried by invoking | |
2096 | * the lpfc_els_retry() routine. Otherwise, if no error was reported in | |
2097 | * the response status, the state machine is invoked to set transition | |
2098 | * with respect to NLP_EVT_CMPL_ADISC event. | |
2099 | **/ | |
dea3101e | 2100 | static void |
2e0fef85 JS |
2101 | lpfc_cmpl_els_adisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
2102 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 2103 | { |
2e0fef85 JS |
2104 | struct lpfc_vport *vport = cmdiocb->vport; |
2105 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e | 2106 | IOCB_t *irsp; |
dea3101e | 2107 | struct lpfc_nodelist *ndlp; |
2e0fef85 | 2108 | int disc; |
dea3101e JB |
2109 | |
2110 | /* we pass cmdiocb to state machine which needs rspiocb as well */ | |
2111 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
2112 | ||
2113 | irsp = &(rspiocb->iocb); | |
2114 | ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
dea3101e | 2115 | |
858c9f6c JS |
2116 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2117 | "ADISC cmpl: status:x%x/x%x did:x%x", | |
2118 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
2119 | ndlp->nlp_DID); | |
2120 | ||
dea3101e JB |
2121 | /* Since ndlp can be freed in the disc state machine, note if this node |
2122 | * is being used during discovery. | |
2123 | */ | |
2e0fef85 | 2124 | spin_lock_irq(shost->host_lock); |
dea3101e | 2125 | disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC); |
c9f8735b | 2126 | ndlp->nlp_flag &= ~(NLP_ADISC_SND | NLP_NPR_2B_DISC); |
2e0fef85 | 2127 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2128 | /* ADISC completes to NPort <nlp_DID> */ |
e8b62011 JS |
2129 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
2130 | "0104 ADISC completes to NPort x%x " | |
2131 | "Data: x%x x%x x%x x%x x%x\n", | |
2132 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
2133 | irsp->ulpTimeout, disc, vport->num_disc_nodes); | |
dea3101e | 2134 | /* Check to see if link went down during discovery */ |
2e0fef85 JS |
2135 | if (lpfc_els_chk_latt(vport)) { |
2136 | spin_lock_irq(shost->host_lock); | |
dea3101e | 2137 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 | 2138 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
2139 | goto out; |
2140 | } | |
2141 | ||
2142 | if (irsp->ulpStatus) { | |
2143 | /* Check for retry */ | |
2144 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { | |
2145 | /* ELS command is being retried */ | |
2146 | if (disc) { | |
2e0fef85 | 2147 | spin_lock_irq(shost->host_lock); |
dea3101e | 2148 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 JS |
2149 | spin_unlock_irq(shost->host_lock); |
2150 | lpfc_set_disctmo(vport); | |
dea3101e JB |
2151 | } |
2152 | goto out; | |
2153 | } | |
2154 | /* ADISC failed */ | |
e40a02c1 JS |
2155 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
2156 | "2755 ADISC failure DID:%06X Status:x%x/x%x\n", | |
2157 | ndlp->nlp_DID, irsp->ulpStatus, | |
2158 | irsp->un.ulpWord[4]); | |
dea3101e | 2159 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ |
e47c9093 | 2160 | if (!lpfc_error_lost_link(irsp)) |
2e0fef85 | 2161 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
858c9f6c | 2162 | NLP_EVT_CMPL_ADISC); |
e47c9093 | 2163 | } else |
dea3101e | 2164 | /* Good status, call state machine */ |
2e0fef85 | 2165 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
dea3101e | 2166 | NLP_EVT_CMPL_ADISC); |
dea3101e | 2167 | |
90160e01 JS |
2168 | /* Check to see if there are more ADISCs to be sent */ |
2169 | if (disc && vport->num_disc_nodes) | |
2e0fef85 | 2170 | lpfc_more_adisc(vport); |
dea3101e JB |
2171 | out: |
2172 | lpfc_els_free_iocb(phba, cmdiocb); | |
2173 | return; | |
2174 | } | |
2175 | ||
e59058c4 | 2176 | /** |
3621a710 | 2177 | * lpfc_issue_els_adisc - Issue an address discover iocb to an node on a vport |
e59058c4 JS |
2178 | * @vport: pointer to a virtual N_Port data structure. |
2179 | * @ndlp: pointer to a node-list data structure. | |
2180 | * @retry: number of retries to the command IOCB. | |
2181 | * | |
2182 | * This routine issues an Address Discover (ADISC) for an @ndlp on a | |
2183 | * @vport. It prepares the payload of the ADISC ELS command, updates the | |
2184 | * and states of the ndlp, and invokes the lpfc_sli_issue_iocb() routine | |
2185 | * to issue the ADISC ELS command. | |
2186 | * | |
2187 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
2188 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
2189 | * will be stored into the context1 field of the IOCB for the completion | |
2190 | * callback function to the ADISC ELS command. | |
2191 | * | |
2192 | * Return code | |
2193 | * 0 - successfully issued adisc | |
2194 | * 1 - failed to issue adisc | |
2195 | **/ | |
dea3101e | 2196 | int |
2e0fef85 | 2197 | lpfc_issue_els_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
dea3101e JB |
2198 | uint8_t retry) |
2199 | { | |
2e0fef85 JS |
2200 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
2201 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
2202 | ADISC *ap; |
2203 | IOCB_t *icmd; | |
2204 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
2205 | uint8_t *pcmd; |
2206 | uint16_t cmdsize; | |
2207 | ||
92d7f7b0 | 2208 | cmdsize = (sizeof(uint32_t) + sizeof(ADISC)); |
2e0fef85 JS |
2209 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
2210 | ndlp->nlp_DID, ELS_CMD_ADISC); | |
488d1469 | 2211 | if (!elsiocb) |
c9f8735b | 2212 | return 1; |
dea3101e JB |
2213 | |
2214 | icmd = &elsiocb->iocb; | |
2215 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
2216 | ||
2217 | /* For ADISC request, remainder of payload is service parameters */ | |
2218 | *((uint32_t *) (pcmd)) = ELS_CMD_ADISC; | |
92d7f7b0 | 2219 | pcmd += sizeof(uint32_t); |
dea3101e JB |
2220 | |
2221 | /* Fill in ADISC payload */ | |
2222 | ap = (ADISC *) pcmd; | |
2223 | ap->hardAL_PA = phba->fc_pref_ALPA; | |
92d7f7b0 JS |
2224 | memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name)); |
2225 | memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
2e0fef85 | 2226 | ap->DID = be32_to_cpu(vport->fc_myDID); |
dea3101e | 2227 | |
858c9f6c JS |
2228 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2229 | "Issue ADISC: did:x%x", | |
2230 | ndlp->nlp_DID, 0, 0); | |
2231 | ||
dea3101e JB |
2232 | phba->fc_stat.elsXmitADISC++; |
2233 | elsiocb->iocb_cmpl = lpfc_cmpl_els_adisc; | |
2e0fef85 | 2234 | spin_lock_irq(shost->host_lock); |
dea3101e | 2235 | ndlp->nlp_flag |= NLP_ADISC_SND; |
2e0fef85 | 2236 | spin_unlock_irq(shost->host_lock); |
3772a991 JS |
2237 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
2238 | IOCB_ERROR) { | |
2e0fef85 | 2239 | spin_lock_irq(shost->host_lock); |
dea3101e | 2240 | ndlp->nlp_flag &= ~NLP_ADISC_SND; |
2e0fef85 | 2241 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2242 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 2243 | return 1; |
dea3101e | 2244 | } |
c9f8735b | 2245 | return 0; |
dea3101e JB |
2246 | } |
2247 | ||
e59058c4 | 2248 | /** |
3621a710 | 2249 | * lpfc_cmpl_els_logo - Completion callback function for logo |
e59058c4 JS |
2250 | * @phba: pointer to lpfc hba data structure. |
2251 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
2252 | * @rspiocb: pointer to lpfc response iocb data structure. | |
2253 | * | |
2254 | * This routine is the completion function for issuing the ELS Logout (LOGO) | |
2255 | * command. If no error status was reported from the LOGO response, the | |
2256 | * state machine of the associated ndlp shall be invoked for transition with | |
2257 | * respect to NLP_EVT_CMPL_LOGO event. Otherwise, if error status was reported, | |
2258 | * the lpfc_els_retry() routine will be invoked to retry the LOGO command. | |
2259 | **/ | |
dea3101e | 2260 | static void |
2e0fef85 JS |
2261 | lpfc_cmpl_els_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
2262 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 2263 | { |
2e0fef85 JS |
2264 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; |
2265 | struct lpfc_vport *vport = ndlp->vport; | |
2266 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e JB |
2267 | IOCB_t *irsp; |
2268 | struct lpfc_sli *psli; | |
92494144 | 2269 | struct lpfcMboxq *mbox; |
dea3101e JB |
2270 | |
2271 | psli = &phba->sli; | |
2272 | /* we pass cmdiocb to state machine which needs rspiocb as well */ | |
2273 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
2274 | ||
2275 | irsp = &(rspiocb->iocb); | |
2e0fef85 | 2276 | spin_lock_irq(shost->host_lock); |
dea3101e | 2277 | ndlp->nlp_flag &= ~NLP_LOGO_SND; |
2e0fef85 | 2278 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2279 | |
858c9f6c JS |
2280 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2281 | "LOGO cmpl: status:x%x/x%x did:x%x", | |
2282 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
2283 | ndlp->nlp_DID); | |
dea3101e | 2284 | /* LOGO completes to NPort <nlp_DID> */ |
e8b62011 JS |
2285 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
2286 | "0105 LOGO completes to NPort x%x " | |
2287 | "Data: x%x x%x x%x x%x\n", | |
2288 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
2289 | irsp->ulpTimeout, vport->num_disc_nodes); | |
dea3101e | 2290 | /* Check to see if link went down during discovery */ |
2e0fef85 | 2291 | if (lpfc_els_chk_latt(vport)) |
dea3101e JB |
2292 | goto out; |
2293 | ||
92d7f7b0 JS |
2294 | if (ndlp->nlp_flag & NLP_TARGET_REMOVE) { |
2295 | /* NLP_EVT_DEVICE_RM should unregister the RPI | |
2296 | * which should abort all outstanding IOs. | |
2297 | */ | |
2298 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, | |
2299 | NLP_EVT_DEVICE_RM); | |
2300 | goto out; | |
2301 | } | |
2302 | ||
dea3101e JB |
2303 | if (irsp->ulpStatus) { |
2304 | /* Check for retry */ | |
2e0fef85 | 2305 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) |
dea3101e JB |
2306 | /* ELS command is being retried */ |
2307 | goto out; | |
dea3101e | 2308 | /* LOGO failed */ |
e40a02c1 JS |
2309 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
2310 | "2756 LOGO failure DID:%06X Status:x%x/x%x\n", | |
2311 | ndlp->nlp_DID, irsp->ulpStatus, | |
2312 | irsp->un.ulpWord[4]); | |
dea3101e | 2313 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ |
858c9f6c | 2314 | if (lpfc_error_lost_link(irsp)) |
dea3101e | 2315 | goto out; |
858c9f6c | 2316 | else |
2e0fef85 | 2317 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 2318 | NLP_EVT_CMPL_LOGO); |
e47c9093 | 2319 | } else |
5024ab17 JW |
2320 | /* Good status, call state machine. |
2321 | * This will unregister the rpi if needed. | |
2322 | */ | |
2e0fef85 | 2323 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 2324 | NLP_EVT_CMPL_LOGO); |
dea3101e JB |
2325 | out: |
2326 | lpfc_els_free_iocb(phba, cmdiocb); | |
92494144 JS |
2327 | /* If we are in pt2pt mode, we could rcv new S_ID on PLOGI */ |
2328 | if ((vport->fc_flag & FC_PT2PT) && | |
2329 | !(vport->fc_flag & FC_PT2PT_PLOGI)) { | |
2330 | phba->pport->fc_myDID = 0; | |
2331 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
2332 | if (mbox) { | |
2333 | lpfc_config_link(phba, mbox); | |
2334 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
2335 | mbox->vport = vport; | |
2336 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) == | |
2337 | MBX_NOT_FINISHED) { | |
2338 | mempool_free(mbox, phba->mbox_mem_pool); | |
2339 | } | |
2340 | } | |
2341 | } | |
dea3101e JB |
2342 | return; |
2343 | } | |
2344 | ||
e59058c4 | 2345 | /** |
3621a710 | 2346 | * lpfc_issue_els_logo - Issue a logo to an node on a vport |
e59058c4 JS |
2347 | * @vport: pointer to a virtual N_Port data structure. |
2348 | * @ndlp: pointer to a node-list data structure. | |
2349 | * @retry: number of retries to the command IOCB. | |
2350 | * | |
2351 | * This routine constructs and issues an ELS Logout (LOGO) iocb command | |
2352 | * to a remote node, referred by an @ndlp on a @vport. It constructs the | |
2353 | * payload of the IOCB, properly sets up the @ndlp state, and invokes the | |
2354 | * lpfc_sli_issue_iocb() routine to send out the LOGO ELS command. | |
2355 | * | |
2356 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
2357 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
2358 | * will be stored into the context1 field of the IOCB for the completion | |
2359 | * callback function to the LOGO ELS command. | |
2360 | * | |
2361 | * Return code | |
2362 | * 0 - successfully issued logo | |
2363 | * 1 - failed to issue logo | |
2364 | **/ | |
dea3101e | 2365 | int |
2e0fef85 | 2366 | lpfc_issue_els_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
dea3101e JB |
2367 | uint8_t retry) |
2368 | { | |
2e0fef85 JS |
2369 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
2370 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
2371 | IOCB_t *icmd; |
2372 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
2373 | uint8_t *pcmd; |
2374 | uint16_t cmdsize; | |
92d7f7b0 | 2375 | int rc; |
dea3101e | 2376 | |
98c9ea5c JS |
2377 | spin_lock_irq(shost->host_lock); |
2378 | if (ndlp->nlp_flag & NLP_LOGO_SND) { | |
2379 | spin_unlock_irq(shost->host_lock); | |
2380 | return 0; | |
2381 | } | |
2382 | spin_unlock_irq(shost->host_lock); | |
2383 | ||
92d7f7b0 | 2384 | cmdsize = (2 * sizeof(uint32_t)) + sizeof(struct lpfc_name); |
2e0fef85 JS |
2385 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
2386 | ndlp->nlp_DID, ELS_CMD_LOGO); | |
488d1469 | 2387 | if (!elsiocb) |
c9f8735b | 2388 | return 1; |
dea3101e JB |
2389 | |
2390 | icmd = &elsiocb->iocb; | |
2391 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
2392 | *((uint32_t *) (pcmd)) = ELS_CMD_LOGO; | |
92d7f7b0 | 2393 | pcmd += sizeof(uint32_t); |
dea3101e JB |
2394 | |
2395 | /* Fill in LOGO payload */ | |
2e0fef85 | 2396 | *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID); |
92d7f7b0 JS |
2397 | pcmd += sizeof(uint32_t); |
2398 | memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name)); | |
dea3101e | 2399 | |
858c9f6c JS |
2400 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2401 | "Issue LOGO: did:x%x", | |
2402 | ndlp->nlp_DID, 0, 0); | |
2403 | ||
dea3101e JB |
2404 | phba->fc_stat.elsXmitLOGO++; |
2405 | elsiocb->iocb_cmpl = lpfc_cmpl_els_logo; | |
2e0fef85 | 2406 | spin_lock_irq(shost->host_lock); |
dea3101e | 2407 | ndlp->nlp_flag |= NLP_LOGO_SND; |
2e0fef85 | 2408 | spin_unlock_irq(shost->host_lock); |
3772a991 | 2409 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
92d7f7b0 JS |
2410 | |
2411 | if (rc == IOCB_ERROR) { | |
2e0fef85 | 2412 | spin_lock_irq(shost->host_lock); |
dea3101e | 2413 | ndlp->nlp_flag &= ~NLP_LOGO_SND; |
2e0fef85 | 2414 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2415 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 2416 | return 1; |
dea3101e | 2417 | } |
c9f8735b | 2418 | return 0; |
dea3101e JB |
2419 | } |
2420 | ||
e59058c4 | 2421 | /** |
3621a710 | 2422 | * lpfc_cmpl_els_cmd - Completion callback function for generic els command |
e59058c4 JS |
2423 | * @phba: pointer to lpfc hba data structure. |
2424 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
2425 | * @rspiocb: pointer to lpfc response iocb data structure. | |
2426 | * | |
2427 | * This routine is a generic completion callback function for ELS commands. | |
2428 | * Specifically, it is the callback function which does not need to perform | |
2429 | * any command specific operations. It is currently used by the ELS command | |
2430 | * issuing routines for the ELS State Change Request (SCR), | |
2431 | * lpfc_issue_els_scr(), and the ELS Fibre Channel Address Resolution | |
2432 | * Protocol Response (FARPR) routine, lpfc_issue_els_farpr(). Other than | |
2433 | * certain debug loggings, this callback function simply invokes the | |
2434 | * lpfc_els_chk_latt() routine to check whether link went down during the | |
2435 | * discovery process. | |
2436 | **/ | |
dea3101e | 2437 | static void |
2e0fef85 JS |
2438 | lpfc_cmpl_els_cmd(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
2439 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 2440 | { |
2e0fef85 | 2441 | struct lpfc_vport *vport = cmdiocb->vport; |
dea3101e JB |
2442 | IOCB_t *irsp; |
2443 | ||
2444 | irsp = &rspiocb->iocb; | |
2445 | ||
858c9f6c JS |
2446 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2447 | "ELS cmd cmpl: status:x%x/x%x did:x%x", | |
2448 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
2449 | irsp->un.elsreq64.remoteID); | |
dea3101e | 2450 | /* ELS cmd tag <ulpIoTag> completes */ |
e8b62011 JS |
2451 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
2452 | "0106 ELS cmd tag x%x completes Data: x%x x%x x%x\n", | |
2453 | irsp->ulpIoTag, irsp->ulpStatus, | |
2454 | irsp->un.ulpWord[4], irsp->ulpTimeout); | |
dea3101e | 2455 | /* Check to see if link went down during discovery */ |
2e0fef85 | 2456 | lpfc_els_chk_latt(vport); |
dea3101e JB |
2457 | lpfc_els_free_iocb(phba, cmdiocb); |
2458 | return; | |
2459 | } | |
2460 | ||
e59058c4 | 2461 | /** |
3621a710 | 2462 | * lpfc_issue_els_scr - Issue a scr to an node on a vport |
e59058c4 JS |
2463 | * @vport: pointer to a host virtual N_Port data structure. |
2464 | * @nportid: N_Port identifier to the remote node. | |
2465 | * @retry: number of retries to the command IOCB. | |
2466 | * | |
2467 | * This routine issues a State Change Request (SCR) to a fabric node | |
2468 | * on a @vport. The remote node @nportid is passed into the function. It | |
2469 | * first search the @vport node list to find the matching ndlp. If no such | |
2470 | * ndlp is found, a new ndlp shall be created for this (SCR) purpose. An | |
2471 | * IOCB is allocated, payload prepared, and the lpfc_sli_issue_iocb() | |
2472 | * routine is invoked to send the SCR IOCB. | |
2473 | * | |
2474 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
2475 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
2476 | * will be stored into the context1 field of the IOCB for the completion | |
2477 | * callback function to the SCR ELS command. | |
2478 | * | |
2479 | * Return code | |
2480 | * 0 - Successfully issued scr command | |
2481 | * 1 - Failed to issue scr command | |
2482 | **/ | |
dea3101e | 2483 | int |
2e0fef85 | 2484 | lpfc_issue_els_scr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry) |
dea3101e | 2485 | { |
2e0fef85 | 2486 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
2487 | IOCB_t *icmd; |
2488 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
2489 | struct lpfc_sli *psli; |
2490 | uint8_t *pcmd; | |
2491 | uint16_t cmdsize; | |
2492 | struct lpfc_nodelist *ndlp; | |
2493 | ||
2494 | psli = &phba->sli; | |
92d7f7b0 | 2495 | cmdsize = (sizeof(uint32_t) + sizeof(SCR)); |
dea3101e | 2496 | |
e47c9093 JS |
2497 | ndlp = lpfc_findnode_did(vport, nportid); |
2498 | if (!ndlp) { | |
2499 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
2500 | if (!ndlp) | |
2501 | return 1; | |
2502 | lpfc_nlp_init(vport, ndlp, nportid); | |
2503 | lpfc_enqueue_node(vport, ndlp); | |
2504 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
2505 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
2506 | if (!ndlp) | |
2507 | return 1; | |
2508 | } | |
2e0fef85 JS |
2509 | |
2510 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, | |
2511 | ndlp->nlp_DID, ELS_CMD_SCR); | |
dea3101e | 2512 | |
488d1469 | 2513 | if (!elsiocb) { |
fa4066b6 JS |
2514 | /* This will trigger the release of the node just |
2515 | * allocated | |
2516 | */ | |
329f9bc7 | 2517 | lpfc_nlp_put(ndlp); |
c9f8735b | 2518 | return 1; |
dea3101e JB |
2519 | } |
2520 | ||
2521 | icmd = &elsiocb->iocb; | |
2522 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
2523 | ||
2524 | *((uint32_t *) (pcmd)) = ELS_CMD_SCR; | |
92d7f7b0 | 2525 | pcmd += sizeof(uint32_t); |
dea3101e JB |
2526 | |
2527 | /* For SCR, remainder of payload is SCR parameter page */ | |
92d7f7b0 | 2528 | memset(pcmd, 0, sizeof(SCR)); |
dea3101e JB |
2529 | ((SCR *) pcmd)->Function = SCR_FUNC_FULL; |
2530 | ||
858c9f6c JS |
2531 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2532 | "Issue SCR: did:x%x", | |
2533 | ndlp->nlp_DID, 0, 0); | |
2534 | ||
dea3101e JB |
2535 | phba->fc_stat.elsXmitSCR++; |
2536 | elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd; | |
3772a991 JS |
2537 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
2538 | IOCB_ERROR) { | |
fa4066b6 JS |
2539 | /* The additional lpfc_nlp_put will cause the following |
2540 | * lpfc_els_free_iocb routine to trigger the rlease of | |
2541 | * the node. | |
2542 | */ | |
329f9bc7 | 2543 | lpfc_nlp_put(ndlp); |
dea3101e | 2544 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 2545 | return 1; |
dea3101e | 2546 | } |
fa4066b6 JS |
2547 | /* This will cause the callback-function lpfc_cmpl_els_cmd to |
2548 | * trigger the release of node. | |
2549 | */ | |
329f9bc7 | 2550 | lpfc_nlp_put(ndlp); |
c9f8735b | 2551 | return 0; |
dea3101e JB |
2552 | } |
2553 | ||
e59058c4 | 2554 | /** |
3621a710 | 2555 | * lpfc_issue_els_farpr - Issue a farp to an node on a vport |
e59058c4 JS |
2556 | * @vport: pointer to a host virtual N_Port data structure. |
2557 | * @nportid: N_Port identifier to the remote node. | |
2558 | * @retry: number of retries to the command IOCB. | |
2559 | * | |
2560 | * This routine issues a Fibre Channel Address Resolution Response | |
2561 | * (FARPR) to a node on a vport. The remote node N_Port identifier (@nportid) | |
2562 | * is passed into the function. It first search the @vport node list to find | |
2563 | * the matching ndlp. If no such ndlp is found, a new ndlp shall be created | |
2564 | * for this (FARPR) purpose. An IOCB is allocated, payload prepared, and the | |
2565 | * lpfc_sli_issue_iocb() routine is invoked to send the FARPR ELS command. | |
2566 | * | |
2567 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
2568 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
2569 | * will be stored into the context1 field of the IOCB for the completion | |
2570 | * callback function to the PARPR ELS command. | |
2571 | * | |
2572 | * Return code | |
2573 | * 0 - Successfully issued farpr command | |
2574 | * 1 - Failed to issue farpr command | |
2575 | **/ | |
dea3101e | 2576 | static int |
2e0fef85 | 2577 | lpfc_issue_els_farpr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry) |
dea3101e | 2578 | { |
2e0fef85 | 2579 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
2580 | IOCB_t *icmd; |
2581 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
2582 | struct lpfc_sli *psli; |
2583 | FARP *fp; | |
2584 | uint8_t *pcmd; | |
2585 | uint32_t *lp; | |
2586 | uint16_t cmdsize; | |
2587 | struct lpfc_nodelist *ondlp; | |
2588 | struct lpfc_nodelist *ndlp; | |
2589 | ||
2590 | psli = &phba->sli; | |
92d7f7b0 | 2591 | cmdsize = (sizeof(uint32_t) + sizeof(FARP)); |
dea3101e | 2592 | |
e47c9093 JS |
2593 | ndlp = lpfc_findnode_did(vport, nportid); |
2594 | if (!ndlp) { | |
2595 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
2596 | if (!ndlp) | |
2597 | return 1; | |
2598 | lpfc_nlp_init(vport, ndlp, nportid); | |
2599 | lpfc_enqueue_node(vport, ndlp); | |
2600 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
2601 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
2602 | if (!ndlp) | |
2603 | return 1; | |
2604 | } | |
2e0fef85 JS |
2605 | |
2606 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, | |
2607 | ndlp->nlp_DID, ELS_CMD_RNID); | |
488d1469 | 2608 | if (!elsiocb) { |
fa4066b6 JS |
2609 | /* This will trigger the release of the node just |
2610 | * allocated | |
2611 | */ | |
329f9bc7 | 2612 | lpfc_nlp_put(ndlp); |
c9f8735b | 2613 | return 1; |
dea3101e JB |
2614 | } |
2615 | ||
2616 | icmd = &elsiocb->iocb; | |
2617 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
2618 | ||
2619 | *((uint32_t *) (pcmd)) = ELS_CMD_FARPR; | |
92d7f7b0 | 2620 | pcmd += sizeof(uint32_t); |
dea3101e JB |
2621 | |
2622 | /* Fill in FARPR payload */ | |
2623 | fp = (FARP *) (pcmd); | |
92d7f7b0 | 2624 | memset(fp, 0, sizeof(FARP)); |
dea3101e JB |
2625 | lp = (uint32_t *) pcmd; |
2626 | *lp++ = be32_to_cpu(nportid); | |
2e0fef85 | 2627 | *lp++ = be32_to_cpu(vport->fc_myDID); |
dea3101e JB |
2628 | fp->Rflags = 0; |
2629 | fp->Mflags = (FARP_MATCH_PORT | FARP_MATCH_NODE); | |
2630 | ||
92d7f7b0 JS |
2631 | memcpy(&fp->RportName, &vport->fc_portname, sizeof(struct lpfc_name)); |
2632 | memcpy(&fp->RnodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
2e0fef85 | 2633 | ondlp = lpfc_findnode_did(vport, nportid); |
e47c9093 | 2634 | if (ondlp && NLP_CHK_NODE_ACT(ondlp)) { |
dea3101e | 2635 | memcpy(&fp->OportName, &ondlp->nlp_portname, |
92d7f7b0 | 2636 | sizeof(struct lpfc_name)); |
dea3101e | 2637 | memcpy(&fp->OnodeName, &ondlp->nlp_nodename, |
92d7f7b0 | 2638 | sizeof(struct lpfc_name)); |
dea3101e JB |
2639 | } |
2640 | ||
858c9f6c JS |
2641 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2642 | "Issue FARPR: did:x%x", | |
2643 | ndlp->nlp_DID, 0, 0); | |
2644 | ||
dea3101e JB |
2645 | phba->fc_stat.elsXmitFARPR++; |
2646 | elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd; | |
3772a991 JS |
2647 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
2648 | IOCB_ERROR) { | |
fa4066b6 JS |
2649 | /* The additional lpfc_nlp_put will cause the following |
2650 | * lpfc_els_free_iocb routine to trigger the release of | |
2651 | * the node. | |
2652 | */ | |
329f9bc7 | 2653 | lpfc_nlp_put(ndlp); |
dea3101e | 2654 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 2655 | return 1; |
dea3101e | 2656 | } |
fa4066b6 JS |
2657 | /* This will cause the callback-function lpfc_cmpl_els_cmd to |
2658 | * trigger the release of the node. | |
2659 | */ | |
329f9bc7 | 2660 | lpfc_nlp_put(ndlp); |
c9f8735b | 2661 | return 0; |
dea3101e JB |
2662 | } |
2663 | ||
e59058c4 | 2664 | /** |
3621a710 | 2665 | * lpfc_cancel_retry_delay_tmo - Cancel the timer with delayed iocb-cmd retry |
e59058c4 JS |
2666 | * @vport: pointer to a host virtual N_Port data structure. |
2667 | * @nlp: pointer to a node-list data structure. | |
2668 | * | |
2669 | * This routine cancels the timer with a delayed IOCB-command retry for | |
2670 | * a @vport's @ndlp. It stops the timer for the delayed function retrial and | |
2671 | * removes the ELS retry event if it presents. In addition, if the | |
2672 | * NLP_NPR_2B_DISC bit is set in the @nlp's nlp_flag bitmap, ADISC IOCB | |
2673 | * commands are sent for the @vport's nodes that require issuing discovery | |
2674 | * ADISC. | |
2675 | **/ | |
fdcebe28 | 2676 | void |
2e0fef85 | 2677 | lpfc_cancel_retry_delay_tmo(struct lpfc_vport *vport, struct lpfc_nodelist *nlp) |
fdcebe28 | 2678 | { |
2e0fef85 | 2679 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
e47c9093 | 2680 | struct lpfc_work_evt *evtp; |
2e0fef85 | 2681 | |
0d2b6b83 JS |
2682 | if (!(nlp->nlp_flag & NLP_DELAY_TMO)) |
2683 | return; | |
2e0fef85 | 2684 | spin_lock_irq(shost->host_lock); |
fdcebe28 | 2685 | nlp->nlp_flag &= ~NLP_DELAY_TMO; |
2e0fef85 | 2686 | spin_unlock_irq(shost->host_lock); |
fdcebe28 JS |
2687 | del_timer_sync(&nlp->nlp_delayfunc); |
2688 | nlp->nlp_last_elscmd = 0; | |
e47c9093 | 2689 | if (!list_empty(&nlp->els_retry_evt.evt_listp)) { |
fdcebe28 | 2690 | list_del_init(&nlp->els_retry_evt.evt_listp); |
e47c9093 JS |
2691 | /* Decrement nlp reference count held for the delayed retry */ |
2692 | evtp = &nlp->els_retry_evt; | |
2693 | lpfc_nlp_put((struct lpfc_nodelist *)evtp->evt_arg1); | |
2694 | } | |
fdcebe28 | 2695 | if (nlp->nlp_flag & NLP_NPR_2B_DISC) { |
2e0fef85 | 2696 | spin_lock_irq(shost->host_lock); |
fdcebe28 | 2697 | nlp->nlp_flag &= ~NLP_NPR_2B_DISC; |
2e0fef85 JS |
2698 | spin_unlock_irq(shost->host_lock); |
2699 | if (vport->num_disc_nodes) { | |
0d2b6b83 JS |
2700 | if (vport->port_state < LPFC_VPORT_READY) { |
2701 | /* Check if there are more ADISCs to be sent */ | |
2702 | lpfc_more_adisc(vport); | |
0d2b6b83 JS |
2703 | } else { |
2704 | /* Check if there are more PLOGIs to be sent */ | |
2705 | lpfc_more_plogi(vport); | |
90160e01 JS |
2706 | if (vport->num_disc_nodes == 0) { |
2707 | spin_lock_irq(shost->host_lock); | |
2708 | vport->fc_flag &= ~FC_NDISC_ACTIVE; | |
2709 | spin_unlock_irq(shost->host_lock); | |
2710 | lpfc_can_disctmo(vport); | |
2711 | lpfc_end_rscn(vport); | |
2712 | } | |
fdcebe28 JS |
2713 | } |
2714 | } | |
2715 | } | |
2716 | return; | |
2717 | } | |
2718 | ||
e59058c4 | 2719 | /** |
3621a710 | 2720 | * lpfc_els_retry_delay - Timer function with a ndlp delayed function timer |
e59058c4 JS |
2721 | * @ptr: holder for the pointer to the timer function associated data (ndlp). |
2722 | * | |
2723 | * This routine is invoked by the ndlp delayed-function timer to check | |
2724 | * whether there is any pending ELS retry event(s) with the node. If not, it | |
2725 | * simply returns. Otherwise, if there is at least one ELS delayed event, it | |
2726 | * adds the delayed events to the HBA work list and invokes the | |
2727 | * lpfc_worker_wake_up() routine to wake up worker thread to process the | |
2728 | * event. Note that lpfc_nlp_get() is called before posting the event to | |
2729 | * the work list to hold reference count of ndlp so that it guarantees the | |
2730 | * reference to ndlp will still be available when the worker thread gets | |
2731 | * to the event associated with the ndlp. | |
2732 | **/ | |
dea3101e JB |
2733 | void |
2734 | lpfc_els_retry_delay(unsigned long ptr) | |
2735 | { | |
2e0fef85 JS |
2736 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) ptr; |
2737 | struct lpfc_vport *vport = ndlp->vport; | |
2e0fef85 | 2738 | struct lpfc_hba *phba = vport->phba; |
92d7f7b0 | 2739 | unsigned long flags; |
2e0fef85 | 2740 | struct lpfc_work_evt *evtp = &ndlp->els_retry_evt; |
dea3101e | 2741 | |
92d7f7b0 | 2742 | spin_lock_irqsave(&phba->hbalock, flags); |
dea3101e | 2743 | if (!list_empty(&evtp->evt_listp)) { |
92d7f7b0 | 2744 | spin_unlock_irqrestore(&phba->hbalock, flags); |
dea3101e JB |
2745 | return; |
2746 | } | |
2747 | ||
fa4066b6 JS |
2748 | /* We need to hold the node by incrementing the reference |
2749 | * count until the queued work is done | |
2750 | */ | |
2751 | evtp->evt_arg1 = lpfc_nlp_get(ndlp); | |
5e9d9b82 JS |
2752 | if (evtp->evt_arg1) { |
2753 | evtp->evt = LPFC_EVT_ELS_RETRY; | |
2754 | list_add_tail(&evtp->evt_listp, &phba->work_list); | |
92d7f7b0 | 2755 | lpfc_worker_wake_up(phba); |
5e9d9b82 | 2756 | } |
92d7f7b0 | 2757 | spin_unlock_irqrestore(&phba->hbalock, flags); |
dea3101e JB |
2758 | return; |
2759 | } | |
2760 | ||
e59058c4 | 2761 | /** |
3621a710 | 2762 | * lpfc_els_retry_delay_handler - Work thread handler for ndlp delayed function |
e59058c4 JS |
2763 | * @ndlp: pointer to a node-list data structure. |
2764 | * | |
2765 | * This routine is the worker-thread handler for processing the @ndlp delayed | |
2766 | * event(s), posted by the lpfc_els_retry_delay() routine. It simply retrieves | |
2767 | * the last ELS command from the associated ndlp and invokes the proper ELS | |
2768 | * function according to the delayed ELS command to retry the command. | |
2769 | **/ | |
dea3101e JB |
2770 | void |
2771 | lpfc_els_retry_delay_handler(struct lpfc_nodelist *ndlp) | |
2772 | { | |
2e0fef85 JS |
2773 | struct lpfc_vport *vport = ndlp->vport; |
2774 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
2775 | uint32_t cmd, did, retry; | |
dea3101e | 2776 | |
2e0fef85 | 2777 | spin_lock_irq(shost->host_lock); |
5024ab17 JW |
2778 | did = ndlp->nlp_DID; |
2779 | cmd = ndlp->nlp_last_elscmd; | |
2780 | ndlp->nlp_last_elscmd = 0; | |
dea3101e JB |
2781 | |
2782 | if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { | |
2e0fef85 | 2783 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
2784 | return; |
2785 | } | |
2786 | ||
2787 | ndlp->nlp_flag &= ~NLP_DELAY_TMO; | |
2e0fef85 | 2788 | spin_unlock_irq(shost->host_lock); |
1a169689 JS |
2789 | /* |
2790 | * If a discovery event readded nlp_delayfunc after timer | |
2791 | * firing and before processing the timer, cancel the | |
2792 | * nlp_delayfunc. | |
2793 | */ | |
2794 | del_timer_sync(&ndlp->nlp_delayfunc); | |
dea3101e | 2795 | retry = ndlp->nlp_retry; |
4d9ab994 | 2796 | ndlp->nlp_retry = 0; |
dea3101e JB |
2797 | |
2798 | switch (cmd) { | |
2799 | case ELS_CMD_FLOGI: | |
2e0fef85 | 2800 | lpfc_issue_els_flogi(vport, ndlp, retry); |
dea3101e JB |
2801 | break; |
2802 | case ELS_CMD_PLOGI: | |
2e0fef85 | 2803 | if (!lpfc_issue_els_plogi(vport, ndlp->nlp_DID, retry)) { |
5024ab17 | 2804 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 2805 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); |
6ad42535 | 2806 | } |
dea3101e JB |
2807 | break; |
2808 | case ELS_CMD_ADISC: | |
2e0fef85 | 2809 | if (!lpfc_issue_els_adisc(vport, ndlp, retry)) { |
5024ab17 | 2810 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 2811 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); |
6ad42535 | 2812 | } |
dea3101e JB |
2813 | break; |
2814 | case ELS_CMD_PRLI: | |
2e0fef85 | 2815 | if (!lpfc_issue_els_prli(vport, ndlp, retry)) { |
5024ab17 | 2816 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 2817 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); |
6ad42535 | 2818 | } |
dea3101e JB |
2819 | break; |
2820 | case ELS_CMD_LOGO: | |
2e0fef85 | 2821 | if (!lpfc_issue_els_logo(vport, ndlp, retry)) { |
5024ab17 | 2822 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 2823 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
6ad42535 | 2824 | } |
dea3101e | 2825 | break; |
92d7f7b0 | 2826 | case ELS_CMD_FDISC: |
fedd3b7b JS |
2827 | if (!(vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI)) |
2828 | lpfc_issue_els_fdisc(vport, ndlp, retry); | |
92d7f7b0 | 2829 | break; |
dea3101e JB |
2830 | } |
2831 | return; | |
2832 | } | |
2833 | ||
e59058c4 | 2834 | /** |
3621a710 | 2835 | * lpfc_els_retry - Make retry decision on an els command iocb |
e59058c4 JS |
2836 | * @phba: pointer to lpfc hba data structure. |
2837 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
2838 | * @rspiocb: pointer to lpfc response iocb data structure. | |
2839 | * | |
2840 | * This routine makes a retry decision on an ELS command IOCB, which has | |
2841 | * failed. The following ELS IOCBs use this function for retrying the command | |
2842 | * when previously issued command responsed with error status: FLOGI, PLOGI, | |
2843 | * PRLI, ADISC, LOGO, and FDISC. Based on the ELS command type and the | |
2844 | * returned error status, it makes the decision whether a retry shall be | |
2845 | * issued for the command, and whether a retry shall be made immediately or | |
2846 | * delayed. In the former case, the corresponding ELS command issuing-function | |
2847 | * is called to retry the command. In the later case, the ELS command shall | |
2848 | * be posted to the ndlp delayed event and delayed function timer set to the | |
2849 | * ndlp for the delayed command issusing. | |
2850 | * | |
2851 | * Return code | |
2852 | * 0 - No retry of els command is made | |
2853 | * 1 - Immediate or delayed retry of els command is made | |
2854 | **/ | |
dea3101e | 2855 | static int |
2e0fef85 JS |
2856 | lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
2857 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 2858 | { |
2e0fef85 JS |
2859 | struct lpfc_vport *vport = cmdiocb->vport; |
2860 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
2861 | IOCB_t *irsp = &rspiocb->iocb; | |
2862 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
2863 | struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
dea3101e JB |
2864 | uint32_t *elscmd; |
2865 | struct ls_rjt stat; | |
2e0fef85 | 2866 | int retry = 0, maxretry = lpfc_max_els_tries, delay = 0; |
98c9ea5c | 2867 | int logerr = 0; |
2e0fef85 | 2868 | uint32_t cmd = 0; |
488d1469 | 2869 | uint32_t did; |
dea3101e | 2870 | |
488d1469 | 2871 | |
dea3101e JB |
2872 | /* Note: context2 may be 0 for internal driver abort |
2873 | * of delays ELS command. | |
2874 | */ | |
2875 | ||
2876 | if (pcmd && pcmd->virt) { | |
2877 | elscmd = (uint32_t *) (pcmd->virt); | |
2878 | cmd = *elscmd++; | |
2879 | } | |
2880 | ||
e47c9093 | 2881 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) |
488d1469 JS |
2882 | did = ndlp->nlp_DID; |
2883 | else { | |
2884 | /* We should only hit this case for retrying PLOGI */ | |
2885 | did = irsp->un.elsreq64.remoteID; | |
2e0fef85 | 2886 | ndlp = lpfc_findnode_did(vport, did); |
e47c9093 JS |
2887 | if ((!ndlp || !NLP_CHK_NODE_ACT(ndlp)) |
2888 | && (cmd != ELS_CMD_PLOGI)) | |
488d1469 JS |
2889 | return 1; |
2890 | } | |
2891 | ||
858c9f6c JS |
2892 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2893 | "Retry ELS: wd7:x%x wd4:x%x did:x%x", | |
2894 | *(((uint32_t *) irsp) + 7), irsp->un.ulpWord[4], ndlp->nlp_DID); | |
2895 | ||
dea3101e JB |
2896 | switch (irsp->ulpStatus) { |
2897 | case IOSTAT_FCP_RSP_ERROR: | |
1151e3ec | 2898 | break; |
dea3101e | 2899 | case IOSTAT_REMOTE_STOP: |
1151e3ec JS |
2900 | if (phba->sli_rev == LPFC_SLI_REV4) { |
2901 | /* This IO was aborted by the target, we don't | |
2902 | * know the rxid and because we did not send the | |
2903 | * ABTS we cannot generate and RRQ. | |
2904 | */ | |
2905 | lpfc_set_rrq_active(phba, ndlp, | |
2906 | cmdiocb->sli4_xritag, 0, 0); | |
2907 | } | |
dea3101e | 2908 | break; |
dea3101e JB |
2909 | case IOSTAT_LOCAL_REJECT: |
2910 | switch ((irsp->un.ulpWord[4] & 0xff)) { | |
2911 | case IOERR_LOOP_OPEN_FAILURE: | |
eaf15d5b JS |
2912 | if (cmd == ELS_CMD_FLOGI) { |
2913 | if (PCI_DEVICE_ID_HORNET == | |
2914 | phba->pcidev->device) { | |
76a95d75 | 2915 | phba->fc_topology = LPFC_TOPOLOGY_LOOP; |
eaf15d5b JS |
2916 | phba->pport->fc_myDID = 0; |
2917 | phba->alpa_map[0] = 0; | |
2918 | phba->alpa_map[1] = 0; | |
2919 | } | |
2920 | } | |
2e0fef85 | 2921 | if (cmd == ELS_CMD_PLOGI && cmdiocb->retry == 0) |
92d7f7b0 | 2922 | delay = 1000; |
dea3101e JB |
2923 | retry = 1; |
2924 | break; | |
2925 | ||
92d7f7b0 | 2926 | case IOERR_ILLEGAL_COMMAND: |
7f5f3d0d JS |
2927 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
2928 | "0124 Retry illegal cmd x%x " | |
2929 | "retry:x%x delay:x%x\n", | |
2930 | cmd, cmdiocb->retry, delay); | |
2931 | retry = 1; | |
2932 | /* All command's retry policy */ | |
2933 | maxretry = 8; | |
2934 | if (cmdiocb->retry > 2) | |
2935 | delay = 1000; | |
92d7f7b0 JS |
2936 | break; |
2937 | ||
dea3101e | 2938 | case IOERR_NO_RESOURCES: |
98c9ea5c | 2939 | logerr = 1; /* HBA out of resources */ |
858c9f6c JS |
2940 | retry = 1; |
2941 | if (cmdiocb->retry > 100) | |
2942 | delay = 100; | |
2943 | maxretry = 250; | |
2944 | break; | |
2945 | ||
2946 | case IOERR_ILLEGAL_FRAME: | |
92d7f7b0 | 2947 | delay = 100; |
dea3101e JB |
2948 | retry = 1; |
2949 | break; | |
2950 | ||
858c9f6c | 2951 | case IOERR_SEQUENCE_TIMEOUT: |
dea3101e JB |
2952 | case IOERR_INVALID_RPI: |
2953 | retry = 1; | |
2954 | break; | |
2955 | } | |
2956 | break; | |
2957 | ||
2958 | case IOSTAT_NPORT_RJT: | |
2959 | case IOSTAT_FABRIC_RJT: | |
2960 | if (irsp->un.ulpWord[4] & RJT_UNAVAIL_TEMP) { | |
2961 | retry = 1; | |
2962 | break; | |
2963 | } | |
2964 | break; | |
2965 | ||
2966 | case IOSTAT_NPORT_BSY: | |
2967 | case IOSTAT_FABRIC_BSY: | |
98c9ea5c | 2968 | logerr = 1; /* Fabric / Remote NPort out of resources */ |
dea3101e JB |
2969 | retry = 1; |
2970 | break; | |
2971 | ||
2972 | case IOSTAT_LS_RJT: | |
2973 | stat.un.lsRjtError = be32_to_cpu(irsp->un.ulpWord[4]); | |
2974 | /* Added for Vendor specifc support | |
2975 | * Just keep retrying for these Rsn / Exp codes | |
2976 | */ | |
2977 | switch (stat.un.b.lsRjtRsnCode) { | |
2978 | case LSRJT_UNABLE_TPC: | |
2979 | if (stat.un.b.lsRjtRsnCodeExp == | |
2980 | LSEXP_CMD_IN_PROGRESS) { | |
2981 | if (cmd == ELS_CMD_PLOGI) { | |
92d7f7b0 | 2982 | delay = 1000; |
dea3101e JB |
2983 | maxretry = 48; |
2984 | } | |
2985 | retry = 1; | |
2986 | break; | |
2987 | } | |
ffc95493 JS |
2988 | if (stat.un.b.lsRjtRsnCodeExp == |
2989 | LSEXP_CANT_GIVE_DATA) { | |
2990 | if (cmd == ELS_CMD_PLOGI) { | |
2991 | delay = 1000; | |
2992 | maxretry = 48; | |
2993 | } | |
2994 | retry = 1; | |
2995 | break; | |
2996 | } | |
dea3101e | 2997 | if (cmd == ELS_CMD_PLOGI) { |
92d7f7b0 | 2998 | delay = 1000; |
dea3101e JB |
2999 | maxretry = lpfc_max_els_tries + 1; |
3000 | retry = 1; | |
3001 | break; | |
3002 | } | |
92d7f7b0 JS |
3003 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && |
3004 | (cmd == ELS_CMD_FDISC) && | |
3005 | (stat.un.b.lsRjtRsnCodeExp == LSEXP_OUT_OF_RESOURCE)){ | |
e8b62011 JS |
3006 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
3007 | "0125 FDISC Failed (x%x). " | |
3008 | "Fabric out of resources\n", | |
3009 | stat.un.lsRjtError); | |
92d7f7b0 JS |
3010 | lpfc_vport_set_state(vport, |
3011 | FC_VPORT_NO_FABRIC_RSCS); | |
3012 | } | |
dea3101e JB |
3013 | break; |
3014 | ||
3015 | case LSRJT_LOGICAL_BSY: | |
858c9f6c JS |
3016 | if ((cmd == ELS_CMD_PLOGI) || |
3017 | (cmd == ELS_CMD_PRLI)) { | |
92d7f7b0 | 3018 | delay = 1000; |
dea3101e | 3019 | maxretry = 48; |
92d7f7b0 | 3020 | } else if (cmd == ELS_CMD_FDISC) { |
51ef4c26 JS |
3021 | /* FDISC retry policy */ |
3022 | maxretry = 48; | |
3023 | if (cmdiocb->retry >= 32) | |
3024 | delay = 1000; | |
dea3101e JB |
3025 | } |
3026 | retry = 1; | |
3027 | break; | |
92d7f7b0 JS |
3028 | |
3029 | case LSRJT_LOGICAL_ERR: | |
7f5f3d0d JS |
3030 | /* There are some cases where switches return this |
3031 | * error when they are not ready and should be returning | |
3032 | * Logical Busy. We should delay every time. | |
3033 | */ | |
3034 | if (cmd == ELS_CMD_FDISC && | |
3035 | stat.un.b.lsRjtRsnCodeExp == LSEXP_PORT_LOGIN_REQ) { | |
3036 | maxretry = 3; | |
3037 | delay = 1000; | |
3038 | retry = 1; | |
3039 | break; | |
3040 | } | |
92d7f7b0 JS |
3041 | case LSRJT_PROTOCOL_ERR: |
3042 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && | |
3043 | (cmd == ELS_CMD_FDISC) && | |
3044 | ((stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_PNAME) || | |
3045 | (stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_NPORT_ID)) | |
3046 | ) { | |
e8b62011 | 3047 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
d7c255b2 | 3048 | "0122 FDISC Failed (x%x). " |
e8b62011 JS |
3049 | "Fabric Detected Bad WWN\n", |
3050 | stat.un.lsRjtError); | |
92d7f7b0 JS |
3051 | lpfc_vport_set_state(vport, |
3052 | FC_VPORT_FABRIC_REJ_WWN); | |
3053 | } | |
3054 | break; | |
dea3101e JB |
3055 | } |
3056 | break; | |
3057 | ||
3058 | case IOSTAT_INTERMED_RSP: | |
3059 | case IOSTAT_BA_RJT: | |
3060 | break; | |
3061 | ||
3062 | default: | |
3063 | break; | |
3064 | } | |
3065 | ||
488d1469 | 3066 | if (did == FDMI_DID) |
dea3101e | 3067 | retry = 1; |
dea3101e | 3068 | |
695a814e | 3069 | if (((cmd == ELS_CMD_FLOGI) || (cmd == ELS_CMD_FDISC)) && |
76a95d75 | 3070 | (phba->fc_topology != LPFC_TOPOLOGY_LOOP) && |
1b32f6aa | 3071 | !lpfc_error_lost_link(irsp)) { |
98c9ea5c JS |
3072 | /* FLOGI retry policy */ |
3073 | retry = 1; | |
6669f9bb JS |
3074 | /* retry forever */ |
3075 | maxretry = 0; | |
3076 | if (cmdiocb->retry >= 100) | |
3077 | delay = 5000; | |
3078 | else if (cmdiocb->retry >= 32) | |
98c9ea5c JS |
3079 | delay = 1000; |
3080 | } | |
3081 | ||
6669f9bb JS |
3082 | cmdiocb->retry++; |
3083 | if (maxretry && (cmdiocb->retry >= maxretry)) { | |
dea3101e JB |
3084 | phba->fc_stat.elsRetryExceeded++; |
3085 | retry = 0; | |
3086 | } | |
3087 | ||
ed957684 JS |
3088 | if ((vport->load_flag & FC_UNLOADING) != 0) |
3089 | retry = 0; | |
3090 | ||
dea3101e | 3091 | if (retry) { |
38b92ef8 JS |
3092 | if ((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_FDISC)) { |
3093 | /* Stop retrying PLOGI and FDISC if in FCF discovery */ | |
3094 | if (phba->fcf.fcf_flag & FCF_DISCOVERY) { | |
3095 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
3096 | "2849 Stop retry ELS command " | |
3097 | "x%x to remote NPORT x%x, " | |
3098 | "Data: x%x x%x\n", cmd, did, | |
3099 | cmdiocb->retry, delay); | |
3100 | return 0; | |
3101 | } | |
3102 | } | |
dea3101e JB |
3103 | |
3104 | /* Retry ELS command <elsCmd> to remote NPORT <did> */ | |
e8b62011 JS |
3105 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3106 | "0107 Retry ELS command x%x to remote " | |
3107 | "NPORT x%x Data: x%x x%x\n", | |
3108 | cmd, did, cmdiocb->retry, delay); | |
dea3101e | 3109 | |
858c9f6c JS |
3110 | if (((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_ADISC)) && |
3111 | ((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) || | |
3112 | ((irsp->un.ulpWord[4] & 0xff) != IOERR_NO_RESOURCES))) { | |
3113 | /* Don't reset timer for no resources */ | |
3114 | ||
dea3101e | 3115 | /* If discovery / RSCN timer is running, reset it */ |
2e0fef85 | 3116 | if (timer_pending(&vport->fc_disctmo) || |
92d7f7b0 | 3117 | (vport->fc_flag & FC_RSCN_MODE)) |
2e0fef85 | 3118 | lpfc_set_disctmo(vport); |
dea3101e JB |
3119 | } |
3120 | ||
3121 | phba->fc_stat.elsXmitRetry++; | |
58da1ffb | 3122 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && delay) { |
dea3101e JB |
3123 | phba->fc_stat.elsDelayRetry++; |
3124 | ndlp->nlp_retry = cmdiocb->retry; | |
3125 | ||
92d7f7b0 JS |
3126 | /* delay is specified in milliseconds */ |
3127 | mod_timer(&ndlp->nlp_delayfunc, | |
3128 | jiffies + msecs_to_jiffies(delay)); | |
2e0fef85 | 3129 | spin_lock_irq(shost->host_lock); |
dea3101e | 3130 | ndlp->nlp_flag |= NLP_DELAY_TMO; |
2e0fef85 | 3131 | spin_unlock_irq(shost->host_lock); |
dea3101e | 3132 | |
5024ab17 | 3133 | ndlp->nlp_prev_state = ndlp->nlp_state; |
858c9f6c JS |
3134 | if (cmd == ELS_CMD_PRLI) |
3135 | lpfc_nlp_set_state(vport, ndlp, | |
3136 | NLP_STE_REG_LOGIN_ISSUE); | |
3137 | else | |
3138 | lpfc_nlp_set_state(vport, ndlp, | |
3139 | NLP_STE_NPR_NODE); | |
dea3101e JB |
3140 | ndlp->nlp_last_elscmd = cmd; |
3141 | ||
c9f8735b | 3142 | return 1; |
dea3101e JB |
3143 | } |
3144 | switch (cmd) { | |
3145 | case ELS_CMD_FLOGI: | |
2e0fef85 | 3146 | lpfc_issue_els_flogi(vport, ndlp, cmdiocb->retry); |
c9f8735b | 3147 | return 1; |
92d7f7b0 JS |
3148 | case ELS_CMD_FDISC: |
3149 | lpfc_issue_els_fdisc(vport, ndlp, cmdiocb->retry); | |
3150 | return 1; | |
dea3101e | 3151 | case ELS_CMD_PLOGI: |
58da1ffb | 3152 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) { |
488d1469 | 3153 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 3154 | lpfc_nlp_set_state(vport, ndlp, |
de0c5b32 | 3155 | NLP_STE_PLOGI_ISSUE); |
488d1469 | 3156 | } |
2e0fef85 | 3157 | lpfc_issue_els_plogi(vport, did, cmdiocb->retry); |
c9f8735b | 3158 | return 1; |
dea3101e | 3159 | case ELS_CMD_ADISC: |
5024ab17 | 3160 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 JS |
3161 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); |
3162 | lpfc_issue_els_adisc(vport, ndlp, cmdiocb->retry); | |
c9f8735b | 3163 | return 1; |
dea3101e | 3164 | case ELS_CMD_PRLI: |
5024ab17 | 3165 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 JS |
3166 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); |
3167 | lpfc_issue_els_prli(vport, ndlp, cmdiocb->retry); | |
c9f8735b | 3168 | return 1; |
dea3101e | 3169 | case ELS_CMD_LOGO: |
5024ab17 | 3170 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 JS |
3171 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
3172 | lpfc_issue_els_logo(vport, ndlp, cmdiocb->retry); | |
c9f8735b | 3173 | return 1; |
dea3101e JB |
3174 | } |
3175 | } | |
dea3101e | 3176 | /* No retry ELS command <elsCmd> to remote NPORT <did> */ |
98c9ea5c JS |
3177 | if (logerr) { |
3178 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
3179 | "0137 No retry ELS command x%x to remote " | |
3180 | "NPORT x%x: Out of Resources: Error:x%x/%x\n", | |
3181 | cmd, did, irsp->ulpStatus, | |
3182 | irsp->un.ulpWord[4]); | |
3183 | } | |
3184 | else { | |
3185 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
a58cbd52 JS |
3186 | "0108 No retry ELS command x%x to remote " |
3187 | "NPORT x%x Retried:%d Error:x%x/%x\n", | |
3188 | cmd, did, cmdiocb->retry, irsp->ulpStatus, | |
3189 | irsp->un.ulpWord[4]); | |
98c9ea5c | 3190 | } |
c9f8735b | 3191 | return 0; |
dea3101e JB |
3192 | } |
3193 | ||
e59058c4 | 3194 | /** |
3621a710 | 3195 | * lpfc_els_free_data - Free lpfc dma buffer and data structure with an iocb |
e59058c4 JS |
3196 | * @phba: pointer to lpfc hba data structure. |
3197 | * @buf_ptr1: pointer to the lpfc DMA buffer data structure. | |
3198 | * | |
3199 | * This routine releases the lpfc DMA (Direct Memory Access) buffer(s) | |
3200 | * associated with a command IOCB back to the lpfc DMA buffer pool. It first | |
3201 | * checks to see whether there is a lpfc DMA buffer associated with the | |
3202 | * response of the command IOCB. If so, it will be released before releasing | |
3203 | * the lpfc DMA buffer associated with the IOCB itself. | |
3204 | * | |
3205 | * Return code | |
3206 | * 0 - Successfully released lpfc DMA buffer (currently, always return 0) | |
3207 | **/ | |
09372820 | 3208 | static int |
87af33fe JS |
3209 | lpfc_els_free_data(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr1) |
3210 | { | |
3211 | struct lpfc_dmabuf *buf_ptr; | |
3212 | ||
e59058c4 | 3213 | /* Free the response before processing the command. */ |
87af33fe JS |
3214 | if (!list_empty(&buf_ptr1->list)) { |
3215 | list_remove_head(&buf_ptr1->list, buf_ptr, | |
3216 | struct lpfc_dmabuf, | |
3217 | list); | |
3218 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); | |
3219 | kfree(buf_ptr); | |
3220 | } | |
3221 | lpfc_mbuf_free(phba, buf_ptr1->virt, buf_ptr1->phys); | |
3222 | kfree(buf_ptr1); | |
3223 | return 0; | |
3224 | } | |
3225 | ||
e59058c4 | 3226 | /** |
3621a710 | 3227 | * lpfc_els_free_bpl - Free lpfc dma buffer and data structure with bpl |
e59058c4 JS |
3228 | * @phba: pointer to lpfc hba data structure. |
3229 | * @buf_ptr: pointer to the lpfc dma buffer data structure. | |
3230 | * | |
3231 | * This routine releases the lpfc Direct Memory Access (DMA) buffer | |
3232 | * associated with a Buffer Pointer List (BPL) back to the lpfc DMA buffer | |
3233 | * pool. | |
3234 | * | |
3235 | * Return code | |
3236 | * 0 - Successfully released lpfc DMA buffer (currently, always return 0) | |
3237 | **/ | |
09372820 | 3238 | static int |
87af33fe JS |
3239 | lpfc_els_free_bpl(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr) |
3240 | { | |
3241 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); | |
3242 | kfree(buf_ptr); | |
3243 | return 0; | |
3244 | } | |
3245 | ||
e59058c4 | 3246 | /** |
3621a710 | 3247 | * lpfc_els_free_iocb - Free a command iocb and its associated resources |
e59058c4 JS |
3248 | * @phba: pointer to lpfc hba data structure. |
3249 | * @elsiocb: pointer to lpfc els command iocb data structure. | |
3250 | * | |
3251 | * This routine frees a command IOCB and its associated resources. The | |
3252 | * command IOCB data structure contains the reference to various associated | |
3253 | * resources, these fields must be set to NULL if the associated reference | |
3254 | * not present: | |
3255 | * context1 - reference to ndlp | |
3256 | * context2 - reference to cmd | |
3257 | * context2->next - reference to rsp | |
3258 | * context3 - reference to bpl | |
3259 | * | |
3260 | * It first properly decrements the reference count held on ndlp for the | |
3261 | * IOCB completion callback function. If LPFC_DELAY_MEM_FREE flag is not | |
3262 | * set, it invokes the lpfc_els_free_data() routine to release the Direct | |
3263 | * Memory Access (DMA) buffers associated with the IOCB. Otherwise, it | |
3264 | * adds the DMA buffer the @phba data structure for the delayed release. | |
3265 | * If reference to the Buffer Pointer List (BPL) is present, the | |
3266 | * lpfc_els_free_bpl() routine is invoked to release the DMA memory | |
3267 | * associated with BPL. Finally, the lpfc_sli_release_iocbq() routine is | |
3268 | * invoked to release the IOCB data structure back to @phba IOCBQ list. | |
3269 | * | |
3270 | * Return code | |
3271 | * 0 - Success (currently, always return 0) | |
3272 | **/ | |
dea3101e | 3273 | int |
329f9bc7 | 3274 | lpfc_els_free_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *elsiocb) |
dea3101e JB |
3275 | { |
3276 | struct lpfc_dmabuf *buf_ptr, *buf_ptr1; | |
a8adb832 JS |
3277 | struct lpfc_nodelist *ndlp; |
3278 | ||
3279 | ndlp = (struct lpfc_nodelist *)elsiocb->context1; | |
3280 | if (ndlp) { | |
3281 | if (ndlp->nlp_flag & NLP_DEFER_RM) { | |
3282 | lpfc_nlp_put(ndlp); | |
dea3101e | 3283 | |
a8adb832 JS |
3284 | /* If the ndlp is not being used by another discovery |
3285 | * thread, free it. | |
3286 | */ | |
3287 | if (!lpfc_nlp_not_used(ndlp)) { | |
3288 | /* If ndlp is being used by another discovery | |
3289 | * thread, just clear NLP_DEFER_RM | |
3290 | */ | |
3291 | ndlp->nlp_flag &= ~NLP_DEFER_RM; | |
3292 | } | |
3293 | } | |
3294 | else | |
3295 | lpfc_nlp_put(ndlp); | |
329f9bc7 JS |
3296 | elsiocb->context1 = NULL; |
3297 | } | |
dea3101e JB |
3298 | /* context2 = cmd, context2->next = rsp, context3 = bpl */ |
3299 | if (elsiocb->context2) { | |
0ff10d46 JS |
3300 | if (elsiocb->iocb_flag & LPFC_DELAY_MEM_FREE) { |
3301 | /* Firmware could still be in progress of DMAing | |
3302 | * payload, so don't free data buffer till after | |
3303 | * a hbeat. | |
3304 | */ | |
3305 | elsiocb->iocb_flag &= ~LPFC_DELAY_MEM_FREE; | |
3306 | buf_ptr = elsiocb->context2; | |
3307 | elsiocb->context2 = NULL; | |
3308 | if (buf_ptr) { | |
3309 | buf_ptr1 = NULL; | |
3310 | spin_lock_irq(&phba->hbalock); | |
3311 | if (!list_empty(&buf_ptr->list)) { | |
3312 | list_remove_head(&buf_ptr->list, | |
3313 | buf_ptr1, struct lpfc_dmabuf, | |
3314 | list); | |
3315 | INIT_LIST_HEAD(&buf_ptr1->list); | |
3316 | list_add_tail(&buf_ptr1->list, | |
3317 | &phba->elsbuf); | |
3318 | phba->elsbuf_cnt++; | |
3319 | } | |
3320 | INIT_LIST_HEAD(&buf_ptr->list); | |
3321 | list_add_tail(&buf_ptr->list, &phba->elsbuf); | |
3322 | phba->elsbuf_cnt++; | |
3323 | spin_unlock_irq(&phba->hbalock); | |
3324 | } | |
3325 | } else { | |
3326 | buf_ptr1 = (struct lpfc_dmabuf *) elsiocb->context2; | |
3327 | lpfc_els_free_data(phba, buf_ptr1); | |
3328 | } | |
dea3101e JB |
3329 | } |
3330 | ||
3331 | if (elsiocb->context3) { | |
3332 | buf_ptr = (struct lpfc_dmabuf *) elsiocb->context3; | |
87af33fe | 3333 | lpfc_els_free_bpl(phba, buf_ptr); |
dea3101e | 3334 | } |
604a3e30 | 3335 | lpfc_sli_release_iocbq(phba, elsiocb); |
dea3101e JB |
3336 | return 0; |
3337 | } | |
3338 | ||
e59058c4 | 3339 | /** |
3621a710 | 3340 | * lpfc_cmpl_els_logo_acc - Completion callback function to logo acc response |
e59058c4 JS |
3341 | * @phba: pointer to lpfc hba data structure. |
3342 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
3343 | * @rspiocb: pointer to lpfc response iocb data structure. | |
3344 | * | |
3345 | * This routine is the completion callback function to the Logout (LOGO) | |
3346 | * Accept (ACC) Response ELS command. This routine is invoked to indicate | |
3347 | * the completion of the LOGO process. It invokes the lpfc_nlp_not_used() to | |
3348 | * release the ndlp if it has the last reference remaining (reference count | |
3349 | * is 1). If succeeded (meaning ndlp released), it sets the IOCB context1 | |
3350 | * field to NULL to inform the following lpfc_els_free_iocb() routine no | |
3351 | * ndlp reference count needs to be decremented. Otherwise, the ndlp | |
3352 | * reference use-count shall be decremented by the lpfc_els_free_iocb() | |
3353 | * routine. Finally, the lpfc_els_free_iocb() is invoked to release the | |
3354 | * IOCB data structure. | |
3355 | **/ | |
dea3101e | 3356 | static void |
2e0fef85 JS |
3357 | lpfc_cmpl_els_logo_acc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
3358 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 3359 | { |
2e0fef85 JS |
3360 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; |
3361 | struct lpfc_vport *vport = cmdiocb->vport; | |
858c9f6c JS |
3362 | IOCB_t *irsp; |
3363 | ||
3364 | irsp = &rspiocb->iocb; | |
3365 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
3366 | "ACC LOGO cmpl: status:x%x/x%x did:x%x", | |
3367 | irsp->ulpStatus, irsp->un.ulpWord[4], ndlp->nlp_DID); | |
dea3101e | 3368 | /* ACC to LOGO completes to NPort <nlp_DID> */ |
e8b62011 JS |
3369 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3370 | "0109 ACC to LOGO completes to NPort x%x " | |
3371 | "Data: x%x x%x x%x\n", | |
3372 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3373 | ndlp->nlp_rpi); | |
87af33fe JS |
3374 | |
3375 | if (ndlp->nlp_state == NLP_STE_NPR_NODE) { | |
3376 | /* NPort Recovery mode or node is just allocated */ | |
3377 | if (!lpfc_nlp_not_used(ndlp)) { | |
3378 | /* If the ndlp is being used by another discovery | |
3379 | * thread, just unregister the RPI. | |
3380 | */ | |
3381 | lpfc_unreg_rpi(vport, ndlp); | |
fa4066b6 JS |
3382 | } else { |
3383 | /* Indicate the node has already released, should | |
3384 | * not reference to it from within lpfc_els_free_iocb. | |
3385 | */ | |
3386 | cmdiocb->context1 = NULL; | |
87af33fe | 3387 | } |
dea3101e | 3388 | } |
73d91e50 JS |
3389 | |
3390 | /* | |
3391 | * The driver received a LOGO from the rport and has ACK'd it. | |
3392 | * At this point, the driver is done so release the IOCB and | |
3393 | * remove the ndlp reference. | |
3394 | */ | |
dea3101e | 3395 | lpfc_els_free_iocb(phba, cmdiocb); |
73d91e50 | 3396 | lpfc_nlp_put(ndlp); |
dea3101e JB |
3397 | return; |
3398 | } | |
3399 | ||
e59058c4 | 3400 | /** |
3621a710 | 3401 | * lpfc_mbx_cmpl_dflt_rpi - Completion callbk func for unreg dflt rpi mbox cmd |
e59058c4 JS |
3402 | * @phba: pointer to lpfc hba data structure. |
3403 | * @pmb: pointer to the driver internal queue element for mailbox command. | |
3404 | * | |
3405 | * This routine is the completion callback function for unregister default | |
3406 | * RPI (Remote Port Index) mailbox command to the @phba. It simply releases | |
3407 | * the associated lpfc Direct Memory Access (DMA) buffer back to the pool and | |
3408 | * decrements the ndlp reference count held for this completion callback | |
3409 | * function. After that, it invokes the lpfc_nlp_not_used() to check | |
3410 | * whether there is only one reference left on the ndlp. If so, it will | |
3411 | * perform one more decrement and trigger the release of the ndlp. | |
3412 | **/ | |
858c9f6c JS |
3413 | void |
3414 | lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) | |
3415 | { | |
3416 | struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); | |
3417 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; | |
3418 | ||
3419 | pmb->context1 = NULL; | |
d439d286 JS |
3420 | pmb->context2 = NULL; |
3421 | ||
858c9f6c JS |
3422 | lpfc_mbuf_free(phba, mp->virt, mp->phys); |
3423 | kfree(mp); | |
3424 | mempool_free(pmb, phba->mbox_mem_pool); | |
58da1ffb | 3425 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) { |
a8adb832 | 3426 | lpfc_nlp_put(ndlp); |
a8adb832 JS |
3427 | /* This is the end of the default RPI cleanup logic for this |
3428 | * ndlp. If no other discovery threads are using this ndlp. | |
3429 | * we should free all resources associated with it. | |
3430 | */ | |
3431 | lpfc_nlp_not_used(ndlp); | |
3432 | } | |
3772a991 | 3433 | |
858c9f6c JS |
3434 | return; |
3435 | } | |
3436 | ||
e59058c4 | 3437 | /** |
3621a710 | 3438 | * lpfc_cmpl_els_rsp - Completion callback function for els response iocb cmd |
e59058c4 JS |
3439 | * @phba: pointer to lpfc hba data structure. |
3440 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
3441 | * @rspiocb: pointer to lpfc response iocb data structure. | |
3442 | * | |
3443 | * This routine is the completion callback function for ELS Response IOCB | |
3444 | * command. In normal case, this callback function just properly sets the | |
3445 | * nlp_flag bitmap in the ndlp data structure, if the mbox command reference | |
3446 | * field in the command IOCB is not NULL, the referred mailbox command will | |
3447 | * be send out, and then invokes the lpfc_els_free_iocb() routine to release | |
3448 | * the IOCB. Under error conditions, such as when a LS_RJT is returned or a | |
3449 | * link down event occurred during the discovery, the lpfc_nlp_not_used() | |
3450 | * routine shall be invoked trying to release the ndlp if no other threads | |
3451 | * are currently referring it. | |
3452 | **/ | |
dea3101e | 3453 | static void |
858c9f6c | 3454 | lpfc_cmpl_els_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
329f9bc7 | 3455 | struct lpfc_iocbq *rspiocb) |
dea3101e | 3456 | { |
2e0fef85 JS |
3457 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; |
3458 | struct lpfc_vport *vport = ndlp ? ndlp->vport : NULL; | |
3459 | struct Scsi_Host *shost = vport ? lpfc_shost_from_vport(vport) : NULL; | |
87af33fe JS |
3460 | IOCB_t *irsp; |
3461 | uint8_t *pcmd; | |
dea3101e | 3462 | LPFC_MBOXQ_t *mbox = NULL; |
2e0fef85 | 3463 | struct lpfc_dmabuf *mp = NULL; |
87af33fe | 3464 | uint32_t ls_rjt = 0; |
dea3101e | 3465 | |
33ccf8d1 JS |
3466 | irsp = &rspiocb->iocb; |
3467 | ||
dea3101e JB |
3468 | if (cmdiocb->context_un.mbox) |
3469 | mbox = cmdiocb->context_un.mbox; | |
3470 | ||
fa4066b6 JS |
3471 | /* First determine if this is a LS_RJT cmpl. Note, this callback |
3472 | * function can have cmdiocb->contest1 (ndlp) field set to NULL. | |
3473 | */ | |
87af33fe | 3474 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt); |
58da1ffb JS |
3475 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && |
3476 | (*((uint32_t *) (pcmd)) == ELS_CMD_LS_RJT)) { | |
fa4066b6 | 3477 | /* A LS_RJT associated with Default RPI cleanup has its own |
3ad2f3fb | 3478 | * separate code path. |
87af33fe JS |
3479 | */ |
3480 | if (!(ndlp->nlp_flag & NLP_RM_DFLT_RPI)) | |
3481 | ls_rjt = 1; | |
3482 | } | |
3483 | ||
dea3101e | 3484 | /* Check to see if link went down during discovery */ |
58da1ffb | 3485 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || lpfc_els_chk_latt(vport)) { |
dea3101e | 3486 | if (mbox) { |
14691150 JS |
3487 | mp = (struct lpfc_dmabuf *) mbox->context1; |
3488 | if (mp) { | |
3489 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
3490 | kfree(mp); | |
3491 | } | |
329f9bc7 | 3492 | mempool_free(mbox, phba->mbox_mem_pool); |
dea3101e | 3493 | } |
58da1ffb JS |
3494 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && |
3495 | (ndlp->nlp_flag & NLP_RM_DFLT_RPI)) | |
fa4066b6 | 3496 | if (lpfc_nlp_not_used(ndlp)) { |
98c9ea5c | 3497 | ndlp = NULL; |
fa4066b6 JS |
3498 | /* Indicate the node has already released, |
3499 | * should not reference to it from within | |
3500 | * the routine lpfc_els_free_iocb. | |
3501 | */ | |
3502 | cmdiocb->context1 = NULL; | |
3503 | } | |
dea3101e JB |
3504 | goto out; |
3505 | } | |
3506 | ||
858c9f6c | 3507 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
51ef4c26 | 3508 | "ELS rsp cmpl: status:x%x/x%x did:x%x", |
858c9f6c | 3509 | irsp->ulpStatus, irsp->un.ulpWord[4], |
51ef4c26 | 3510 | cmdiocb->iocb.un.elsreq64.remoteID); |
dea3101e | 3511 | /* ELS response tag <ulpIoTag> completes */ |
e8b62011 JS |
3512 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3513 | "0110 ELS response tag x%x completes " | |
3514 | "Data: x%x x%x x%x x%x x%x x%x x%x\n", | |
3515 | cmdiocb->iocb.ulpIoTag, rspiocb->iocb.ulpStatus, | |
3516 | rspiocb->iocb.un.ulpWord[4], rspiocb->iocb.ulpTimeout, | |
3517 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3518 | ndlp->nlp_rpi); | |
dea3101e JB |
3519 | if (mbox) { |
3520 | if ((rspiocb->iocb.ulpStatus == 0) | |
3521 | && (ndlp->nlp_flag & NLP_ACC_REGLOGIN)) { | |
2e0fef85 | 3522 | lpfc_unreg_rpi(vport, ndlp); |
e47c9093 JS |
3523 | /* Increment reference count to ndlp to hold the |
3524 | * reference to ndlp for the callback function. | |
3525 | */ | |
329f9bc7 | 3526 | mbox->context2 = lpfc_nlp_get(ndlp); |
2e0fef85 | 3527 | mbox->vport = vport; |
858c9f6c JS |
3528 | if (ndlp->nlp_flag & NLP_RM_DFLT_RPI) { |
3529 | mbox->mbox_flag |= LPFC_MBX_IMED_UNREG; | |
3530 | mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi; | |
3531 | } | |
3532 | else { | |
3533 | mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; | |
3534 | ndlp->nlp_prev_state = ndlp->nlp_state; | |
3535 | lpfc_nlp_set_state(vport, ndlp, | |
2e0fef85 | 3536 | NLP_STE_REG_LOGIN_ISSUE); |
858c9f6c | 3537 | } |
0b727fea | 3538 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) |
e47c9093 | 3539 | != MBX_NOT_FINISHED) |
dea3101e | 3540 | goto out; |
e47c9093 JS |
3541 | else |
3542 | /* Decrement the ndlp reference count we | |
3543 | * set for this failed mailbox command. | |
3544 | */ | |
3545 | lpfc_nlp_put(ndlp); | |
98c9ea5c JS |
3546 | |
3547 | /* ELS rsp: Cannot issue reg_login for <NPortid> */ | |
3548 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
3549 | "0138 ELS rsp: Cannot issue reg_login for x%x " | |
3550 | "Data: x%x x%x x%x\n", | |
3551 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3552 | ndlp->nlp_rpi); | |
3553 | ||
fa4066b6 | 3554 | if (lpfc_nlp_not_used(ndlp)) { |
98c9ea5c | 3555 | ndlp = NULL; |
fa4066b6 JS |
3556 | /* Indicate node has already been released, |
3557 | * should not reference to it from within | |
3558 | * the routine lpfc_els_free_iocb. | |
3559 | */ | |
3560 | cmdiocb->context1 = NULL; | |
3561 | } | |
dea3101e | 3562 | } else { |
858c9f6c JS |
3563 | /* Do not drop node for lpfc_els_abort'ed ELS cmds */ |
3564 | if (!lpfc_error_lost_link(irsp) && | |
3565 | ndlp->nlp_flag & NLP_ACC_REGLOGIN) { | |
fa4066b6 | 3566 | if (lpfc_nlp_not_used(ndlp)) { |
98c9ea5c | 3567 | ndlp = NULL; |
fa4066b6 JS |
3568 | /* Indicate node has already been |
3569 | * released, should not reference | |
3570 | * to it from within the routine | |
3571 | * lpfc_els_free_iocb. | |
3572 | */ | |
3573 | cmdiocb->context1 = NULL; | |
3574 | } | |
dea3101e JB |
3575 | } |
3576 | } | |
14691150 JS |
3577 | mp = (struct lpfc_dmabuf *) mbox->context1; |
3578 | if (mp) { | |
3579 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
3580 | kfree(mp); | |
3581 | } | |
3582 | mempool_free(mbox, phba->mbox_mem_pool); | |
dea3101e JB |
3583 | } |
3584 | out: | |
58da1ffb | 3585 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) { |
2e0fef85 | 3586 | spin_lock_irq(shost->host_lock); |
858c9f6c | 3587 | ndlp->nlp_flag &= ~(NLP_ACC_REGLOGIN | NLP_RM_DFLT_RPI); |
2e0fef85 | 3588 | spin_unlock_irq(shost->host_lock); |
87af33fe JS |
3589 | |
3590 | /* If the node is not being used by another discovery thread, | |
3591 | * and we are sending a reject, we are done with it. | |
3592 | * Release driver reference count here and free associated | |
3593 | * resources. | |
3594 | */ | |
3595 | if (ls_rjt) | |
fa4066b6 JS |
3596 | if (lpfc_nlp_not_used(ndlp)) |
3597 | /* Indicate node has already been released, | |
3598 | * should not reference to it from within | |
3599 | * the routine lpfc_els_free_iocb. | |
3600 | */ | |
3601 | cmdiocb->context1 = NULL; | |
dea3101e | 3602 | } |
87af33fe | 3603 | |
dea3101e JB |
3604 | lpfc_els_free_iocb(phba, cmdiocb); |
3605 | return; | |
3606 | } | |
3607 | ||
e59058c4 | 3608 | /** |
3621a710 | 3609 | * lpfc_els_rsp_acc - Prepare and issue an acc response iocb command |
e59058c4 JS |
3610 | * @vport: pointer to a host virtual N_Port data structure. |
3611 | * @flag: the els command code to be accepted. | |
3612 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3613 | * @ndlp: pointer to a node-list data structure. | |
3614 | * @mbox: pointer to the driver internal queue element for mailbox command. | |
3615 | * | |
3616 | * This routine prepares and issues an Accept (ACC) response IOCB | |
3617 | * command. It uses the @flag to properly set up the IOCB field for the | |
3618 | * specific ACC response command to be issued and invokes the | |
3619 | * lpfc_sli_issue_iocb() routine to send out ACC response IOCB. If a | |
3620 | * @mbox pointer is passed in, it will be put into the context_un.mbox | |
3621 | * field of the IOCB for the completion callback function to issue the | |
3622 | * mailbox command to the HBA later when callback is invoked. | |
3623 | * | |
3624 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
3625 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
3626 | * will be stored into the context1 field of the IOCB for the completion | |
3627 | * callback function to the corresponding response ELS IOCB command. | |
3628 | * | |
3629 | * Return code | |
3630 | * 0 - Successfully issued acc response | |
3631 | * 1 - Failed to issue acc response | |
3632 | **/ | |
dea3101e | 3633 | int |
2e0fef85 JS |
3634 | lpfc_els_rsp_acc(struct lpfc_vport *vport, uint32_t flag, |
3635 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp, | |
51ef4c26 | 3636 | LPFC_MBOXQ_t *mbox) |
dea3101e | 3637 | { |
2e0fef85 JS |
3638 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
3639 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
3640 | IOCB_t *icmd; |
3641 | IOCB_t *oldcmd; | |
3642 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
3643 | struct lpfc_sli *psli; |
3644 | uint8_t *pcmd; | |
3645 | uint16_t cmdsize; | |
3646 | int rc; | |
82d9a2a2 | 3647 | ELS_PKT *els_pkt_ptr; |
dea3101e JB |
3648 | |
3649 | psli = &phba->sli; | |
dea3101e JB |
3650 | oldcmd = &oldiocb->iocb; |
3651 | ||
3652 | switch (flag) { | |
3653 | case ELS_CMD_ACC: | |
92d7f7b0 | 3654 | cmdsize = sizeof(uint32_t); |
2e0fef85 JS |
3655 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, |
3656 | ndlp, ndlp->nlp_DID, ELS_CMD_ACC); | |
488d1469 | 3657 | if (!elsiocb) { |
2e0fef85 | 3658 | spin_lock_irq(shost->host_lock); |
5024ab17 | 3659 | ndlp->nlp_flag &= ~NLP_LOGO_ACC; |
2e0fef85 | 3660 | spin_unlock_irq(shost->host_lock); |
c9f8735b | 3661 | return 1; |
dea3101e | 3662 | } |
2e0fef85 | 3663 | |
dea3101e | 3664 | icmd = &elsiocb->iocb; |
7851fe2c JS |
3665 | icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ |
3666 | icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id; | |
dea3101e JB |
3667 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
3668 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 | 3669 | pcmd += sizeof(uint32_t); |
858c9f6c JS |
3670 | |
3671 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
3672 | "Issue ACC: did:x%x flg:x%x", | |
3673 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
dea3101e JB |
3674 | break; |
3675 | case ELS_CMD_PLOGI: | |
92d7f7b0 | 3676 | cmdsize = (sizeof(struct serv_parm) + sizeof(uint32_t)); |
2e0fef85 JS |
3677 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, |
3678 | ndlp, ndlp->nlp_DID, ELS_CMD_ACC); | |
488d1469 | 3679 | if (!elsiocb) |
c9f8735b | 3680 | return 1; |
488d1469 | 3681 | |
dea3101e | 3682 | icmd = &elsiocb->iocb; |
7851fe2c JS |
3683 | icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ |
3684 | icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id; | |
dea3101e JB |
3685 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
3686 | ||
3687 | if (mbox) | |
3688 | elsiocb->context_un.mbox = mbox; | |
3689 | ||
3690 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 JS |
3691 | pcmd += sizeof(uint32_t); |
3692 | memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); | |
858c9f6c JS |
3693 | |
3694 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
3695 | "Issue ACC PLOGI: did:x%x flg:x%x", | |
3696 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
dea3101e | 3697 | break; |
82d9a2a2 | 3698 | case ELS_CMD_PRLO: |
92d7f7b0 | 3699 | cmdsize = sizeof(uint32_t) + sizeof(PRLO); |
2e0fef85 | 3700 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, |
82d9a2a2 JS |
3701 | ndlp, ndlp->nlp_DID, ELS_CMD_PRLO); |
3702 | if (!elsiocb) | |
3703 | return 1; | |
3704 | ||
3705 | icmd = &elsiocb->iocb; | |
7851fe2c JS |
3706 | icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ |
3707 | icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id; | |
82d9a2a2 JS |
3708 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
3709 | ||
3710 | memcpy(pcmd, ((struct lpfc_dmabuf *) oldiocb->context2)->virt, | |
92d7f7b0 | 3711 | sizeof(uint32_t) + sizeof(PRLO)); |
82d9a2a2 JS |
3712 | *((uint32_t *) (pcmd)) = ELS_CMD_PRLO_ACC; |
3713 | els_pkt_ptr = (ELS_PKT *) pcmd; | |
3714 | els_pkt_ptr->un.prlo.acceptRspCode = PRLO_REQ_EXECUTED; | |
858c9f6c JS |
3715 | |
3716 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
3717 | "Issue ACC PRLO: did:x%x flg:x%x", | |
3718 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
82d9a2a2 | 3719 | break; |
dea3101e | 3720 | default: |
c9f8735b | 3721 | return 1; |
dea3101e | 3722 | } |
dea3101e | 3723 | /* Xmit ELS ACC response tag <ulpIoTag> */ |
e8b62011 JS |
3724 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3725 | "0128 Xmit ELS ACC response tag x%x, XRI: x%x, " | |
3726 | "DID: x%x, nlp_flag: x%x nlp_state: x%x RPI: x%x\n", | |
3727 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
3728 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3729 | ndlp->nlp_rpi); | |
dea3101e | 3730 | if (ndlp->nlp_flag & NLP_LOGO_ACC) { |
2e0fef85 | 3731 | spin_lock_irq(shost->host_lock); |
c9f8735b | 3732 | ndlp->nlp_flag &= ~NLP_LOGO_ACC; |
2e0fef85 | 3733 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
3734 | elsiocb->iocb_cmpl = lpfc_cmpl_els_logo_acc; |
3735 | } else { | |
858c9f6c | 3736 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
dea3101e JB |
3737 | } |
3738 | ||
3739 | phba->fc_stat.elsXmitACC++; | |
3772a991 | 3740 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
dea3101e JB |
3741 | if (rc == IOCB_ERROR) { |
3742 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 3743 | return 1; |
dea3101e | 3744 | } |
c9f8735b | 3745 | return 0; |
dea3101e JB |
3746 | } |
3747 | ||
e59058c4 | 3748 | /** |
3621a710 | 3749 | * lpfc_els_rsp_reject - Propare and issue a rjt response iocb command |
e59058c4 JS |
3750 | * @vport: pointer to a virtual N_Port data structure. |
3751 | * @rejectError: | |
3752 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3753 | * @ndlp: pointer to a node-list data structure. | |
3754 | * @mbox: pointer to the driver internal queue element for mailbox command. | |
3755 | * | |
3756 | * This routine prepares and issue an Reject (RJT) response IOCB | |
3757 | * command. If a @mbox pointer is passed in, it will be put into the | |
3758 | * context_un.mbox field of the IOCB for the completion callback function | |
3759 | * to issue to the HBA later. | |
3760 | * | |
3761 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
3762 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
3763 | * will be stored into the context1 field of the IOCB for the completion | |
3764 | * callback function to the reject response ELS IOCB command. | |
3765 | * | |
3766 | * Return code | |
3767 | * 0 - Successfully issued reject response | |
3768 | * 1 - Failed to issue reject response | |
3769 | **/ | |
dea3101e | 3770 | int |
2e0fef85 | 3771 | lpfc_els_rsp_reject(struct lpfc_vport *vport, uint32_t rejectError, |
858c9f6c JS |
3772 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp, |
3773 | LPFC_MBOXQ_t *mbox) | |
dea3101e | 3774 | { |
2e0fef85 | 3775 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
3776 | IOCB_t *icmd; |
3777 | IOCB_t *oldcmd; | |
3778 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
3779 | struct lpfc_sli *psli; |
3780 | uint8_t *pcmd; | |
3781 | uint16_t cmdsize; | |
3782 | int rc; | |
3783 | ||
3784 | psli = &phba->sli; | |
92d7f7b0 | 3785 | cmdsize = 2 * sizeof(uint32_t); |
2e0fef85 JS |
3786 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
3787 | ndlp->nlp_DID, ELS_CMD_LS_RJT); | |
488d1469 | 3788 | if (!elsiocb) |
c9f8735b | 3789 | return 1; |
dea3101e JB |
3790 | |
3791 | icmd = &elsiocb->iocb; | |
3792 | oldcmd = &oldiocb->iocb; | |
7851fe2c JS |
3793 | icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ |
3794 | icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id; | |
dea3101e JB |
3795 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
3796 | ||
3797 | *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT; | |
92d7f7b0 | 3798 | pcmd += sizeof(uint32_t); |
dea3101e JB |
3799 | *((uint32_t *) (pcmd)) = rejectError; |
3800 | ||
51ef4c26 | 3801 | if (mbox) |
858c9f6c | 3802 | elsiocb->context_un.mbox = mbox; |
858c9f6c | 3803 | |
dea3101e | 3804 | /* Xmit ELS RJT <err> response tag <ulpIoTag> */ |
e8b62011 JS |
3805 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3806 | "0129 Xmit ELS RJT x%x response tag x%x " | |
3807 | "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, " | |
3808 | "rpi x%x\n", | |
3809 | rejectError, elsiocb->iotag, | |
3810 | elsiocb->iocb.ulpContext, ndlp->nlp_DID, | |
3811 | ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi); | |
858c9f6c JS |
3812 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
3813 | "Issue LS_RJT: did:x%x flg:x%x err:x%x", | |
3814 | ndlp->nlp_DID, ndlp->nlp_flag, rejectError); | |
3815 | ||
dea3101e | 3816 | phba->fc_stat.elsXmitLSRJT++; |
858c9f6c | 3817 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
3772a991 | 3818 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
51ef4c26 | 3819 | |
dea3101e JB |
3820 | if (rc == IOCB_ERROR) { |
3821 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 3822 | return 1; |
dea3101e | 3823 | } |
c9f8735b | 3824 | return 0; |
dea3101e JB |
3825 | } |
3826 | ||
e59058c4 | 3827 | /** |
3621a710 | 3828 | * lpfc_els_rsp_adisc_acc - Prepare and issue acc response to adisc iocb cmd |
e59058c4 JS |
3829 | * @vport: pointer to a virtual N_Port data structure. |
3830 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3831 | * @ndlp: pointer to a node-list data structure. | |
3832 | * | |
3833 | * This routine prepares and issues an Accept (ACC) response to Address | |
3834 | * Discover (ADISC) ELS command. It simply prepares the payload of the IOCB | |
3835 | * and invokes the lpfc_sli_issue_iocb() routine to send out the command. | |
3836 | * | |
3837 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
3838 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
3839 | * will be stored into the context1 field of the IOCB for the completion | |
3840 | * callback function to the ADISC Accept response ELS IOCB command. | |
3841 | * | |
3842 | * Return code | |
3843 | * 0 - Successfully issued acc adisc response | |
3844 | * 1 - Failed to issue adisc acc response | |
3845 | **/ | |
dea3101e | 3846 | int |
2e0fef85 JS |
3847 | lpfc_els_rsp_adisc_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb, |
3848 | struct lpfc_nodelist *ndlp) | |
dea3101e | 3849 | { |
2e0fef85 | 3850 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 3851 | ADISC *ap; |
2e0fef85 | 3852 | IOCB_t *icmd, *oldcmd; |
dea3101e | 3853 | struct lpfc_iocbq *elsiocb; |
dea3101e JB |
3854 | uint8_t *pcmd; |
3855 | uint16_t cmdsize; | |
3856 | int rc; | |
3857 | ||
92d7f7b0 | 3858 | cmdsize = sizeof(uint32_t) + sizeof(ADISC); |
2e0fef85 JS |
3859 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
3860 | ndlp->nlp_DID, ELS_CMD_ACC); | |
488d1469 | 3861 | if (!elsiocb) |
c9f8735b | 3862 | return 1; |
dea3101e | 3863 | |
5b8bd0c9 JS |
3864 | icmd = &elsiocb->iocb; |
3865 | oldcmd = &oldiocb->iocb; | |
7851fe2c JS |
3866 | icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ |
3867 | icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id; | |
5b8bd0c9 | 3868 | |
dea3101e | 3869 | /* Xmit ADISC ACC response tag <ulpIoTag> */ |
e8b62011 JS |
3870 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3871 | "0130 Xmit ADISC ACC response iotag x%x xri: " | |
3872 | "x%x, did x%x, nlp_flag x%x, nlp_state x%x rpi x%x\n", | |
3873 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
3874 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3875 | ndlp->nlp_rpi); | |
dea3101e JB |
3876 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
3877 | ||
3878 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 | 3879 | pcmd += sizeof(uint32_t); |
dea3101e JB |
3880 | |
3881 | ap = (ADISC *) (pcmd); | |
3882 | ap->hardAL_PA = phba->fc_pref_ALPA; | |
92d7f7b0 JS |
3883 | memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name)); |
3884 | memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
2e0fef85 | 3885 | ap->DID = be32_to_cpu(vport->fc_myDID); |
dea3101e | 3886 | |
858c9f6c JS |
3887 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
3888 | "Issue ACC ADISC: did:x%x flg:x%x", | |
3889 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
3890 | ||
dea3101e | 3891 | phba->fc_stat.elsXmitACC++; |
858c9f6c | 3892 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
3772a991 | 3893 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
dea3101e JB |
3894 | if (rc == IOCB_ERROR) { |
3895 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 3896 | return 1; |
dea3101e | 3897 | } |
c9f8735b | 3898 | return 0; |
dea3101e JB |
3899 | } |
3900 | ||
e59058c4 | 3901 | /** |
3621a710 | 3902 | * lpfc_els_rsp_prli_acc - Prepare and issue acc response to prli iocb cmd |
e59058c4 JS |
3903 | * @vport: pointer to a virtual N_Port data structure. |
3904 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3905 | * @ndlp: pointer to a node-list data structure. | |
3906 | * | |
3907 | * This routine prepares and issues an Accept (ACC) response to Process | |
3908 | * Login (PRLI) ELS command. It simply prepares the payload of the IOCB | |
3909 | * and invokes the lpfc_sli_issue_iocb() routine to send out the command. | |
3910 | * | |
3911 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
3912 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
3913 | * will be stored into the context1 field of the IOCB for the completion | |
3914 | * callback function to the PRLI Accept response ELS IOCB command. | |
3915 | * | |
3916 | * Return code | |
3917 | * 0 - Successfully issued acc prli response | |
3918 | * 1 - Failed to issue acc prli response | |
3919 | **/ | |
dea3101e | 3920 | int |
2e0fef85 | 3921 | lpfc_els_rsp_prli_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb, |
5b8bd0c9 | 3922 | struct lpfc_nodelist *ndlp) |
dea3101e | 3923 | { |
2e0fef85 | 3924 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
3925 | PRLI *npr; |
3926 | lpfc_vpd_t *vpd; | |
3927 | IOCB_t *icmd; | |
3928 | IOCB_t *oldcmd; | |
3929 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
3930 | struct lpfc_sli *psli; |
3931 | uint8_t *pcmd; | |
3932 | uint16_t cmdsize; | |
3933 | int rc; | |
3934 | ||
3935 | psli = &phba->sli; | |
dea3101e | 3936 | |
92d7f7b0 | 3937 | cmdsize = sizeof(uint32_t) + sizeof(PRLI); |
2e0fef85 | 3938 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
92d7f7b0 | 3939 | ndlp->nlp_DID, (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK))); |
c9f8735b JW |
3940 | if (!elsiocb) |
3941 | return 1; | |
dea3101e | 3942 | |
5b8bd0c9 JS |
3943 | icmd = &elsiocb->iocb; |
3944 | oldcmd = &oldiocb->iocb; | |
7851fe2c JS |
3945 | icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ |
3946 | icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id; | |
3947 | ||
dea3101e | 3948 | /* Xmit PRLI ACC response tag <ulpIoTag> */ |
e8b62011 JS |
3949 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3950 | "0131 Xmit PRLI ACC response tag x%x xri x%x, " | |
3951 | "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n", | |
3952 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
3953 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3954 | ndlp->nlp_rpi); | |
dea3101e JB |
3955 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
3956 | ||
3957 | *((uint32_t *) (pcmd)) = (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK)); | |
92d7f7b0 | 3958 | pcmd += sizeof(uint32_t); |
dea3101e JB |
3959 | |
3960 | /* For PRLI, remainder of payload is PRLI parameter page */ | |
92d7f7b0 | 3961 | memset(pcmd, 0, sizeof(PRLI)); |
dea3101e JB |
3962 | |
3963 | npr = (PRLI *) pcmd; | |
3964 | vpd = &phba->vpd; | |
3965 | /* | |
0d2b6b83 JS |
3966 | * If the remote port is a target and our firmware version is 3.20 or |
3967 | * later, set the following bits for FC-TAPE support. | |
dea3101e | 3968 | */ |
0d2b6b83 JS |
3969 | if ((ndlp->nlp_type & NLP_FCP_TARGET) && |
3970 | (vpd->rev.feaLevelHigh >= 0x02)) { | |
dea3101e JB |
3971 | npr->ConfmComplAllowed = 1; |
3972 | npr->Retry = 1; | |
3973 | npr->TaskRetryIdReq = 1; | |
3974 | } | |
3975 | ||
3976 | npr->acceptRspCode = PRLI_REQ_EXECUTED; | |
3977 | npr->estabImagePair = 1; | |
3978 | npr->readXferRdyDis = 1; | |
3979 | npr->ConfmComplAllowed = 1; | |
3980 | ||
3981 | npr->prliType = PRLI_FCP_TYPE; | |
3982 | npr->initiatorFunc = 1; | |
3983 | ||
858c9f6c JS |
3984 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
3985 | "Issue ACC PRLI: did:x%x flg:x%x", | |
3986 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
3987 | ||
dea3101e | 3988 | phba->fc_stat.elsXmitACC++; |
858c9f6c | 3989 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
dea3101e | 3990 | |
3772a991 | 3991 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
dea3101e JB |
3992 | if (rc == IOCB_ERROR) { |
3993 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 3994 | return 1; |
dea3101e | 3995 | } |
c9f8735b | 3996 | return 0; |
dea3101e JB |
3997 | } |
3998 | ||
e59058c4 | 3999 | /** |
3621a710 | 4000 | * lpfc_els_rsp_rnid_acc - Issue rnid acc response iocb command |
e59058c4 JS |
4001 | * @vport: pointer to a virtual N_Port data structure. |
4002 | * @format: rnid command format. | |
4003 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
4004 | * @ndlp: pointer to a node-list data structure. | |
4005 | * | |
4006 | * This routine issues a Request Node Identification Data (RNID) Accept | |
4007 | * (ACC) response. It constructs the RNID ACC response command according to | |
4008 | * the proper @format and then calls the lpfc_sli_issue_iocb() routine to | |
4009 | * issue the response. Note that this command does not need to hold the ndlp | |
4010 | * reference count for the callback. So, the ndlp reference count taken by | |
4011 | * the lpfc_prep_els_iocb() routine is put back and the context1 field of | |
4012 | * IOCB is set to NULL to indicate to the lpfc_els_free_iocb() routine that | |
4013 | * there is no ndlp reference available. | |
4014 | * | |
4015 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
4016 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
4017 | * will be stored into the context1 field of the IOCB for the completion | |
4018 | * callback function. However, for the RNID Accept Response ELS command, | |
4019 | * this is undone later by this routine after the IOCB is allocated. | |
4020 | * | |
4021 | * Return code | |
4022 | * 0 - Successfully issued acc rnid response | |
4023 | * 1 - Failed to issue acc rnid response | |
4024 | **/ | |
dea3101e | 4025 | static int |
2e0fef85 | 4026 | lpfc_els_rsp_rnid_acc(struct lpfc_vport *vport, uint8_t format, |
329f9bc7 | 4027 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) |
dea3101e | 4028 | { |
2e0fef85 | 4029 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 4030 | RNID *rn; |
2e0fef85 | 4031 | IOCB_t *icmd, *oldcmd; |
dea3101e | 4032 | struct lpfc_iocbq *elsiocb; |
dea3101e JB |
4033 | struct lpfc_sli *psli; |
4034 | uint8_t *pcmd; | |
4035 | uint16_t cmdsize; | |
4036 | int rc; | |
4037 | ||
4038 | psli = &phba->sli; | |
92d7f7b0 JS |
4039 | cmdsize = sizeof(uint32_t) + sizeof(uint32_t) |
4040 | + (2 * sizeof(struct lpfc_name)); | |
dea3101e | 4041 | if (format) |
92d7f7b0 | 4042 | cmdsize += sizeof(RNID_TOP_DISC); |
dea3101e | 4043 | |
2e0fef85 JS |
4044 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
4045 | ndlp->nlp_DID, ELS_CMD_ACC); | |
488d1469 | 4046 | if (!elsiocb) |
c9f8735b | 4047 | return 1; |
dea3101e | 4048 | |
5b8bd0c9 JS |
4049 | icmd = &elsiocb->iocb; |
4050 | oldcmd = &oldiocb->iocb; | |
7851fe2c JS |
4051 | icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ |
4052 | icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id; | |
4053 | ||
dea3101e | 4054 | /* Xmit RNID ACC response tag <ulpIoTag> */ |
e8b62011 JS |
4055 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
4056 | "0132 Xmit RNID ACC response tag x%x xri x%x\n", | |
4057 | elsiocb->iotag, elsiocb->iocb.ulpContext); | |
dea3101e | 4058 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
dea3101e | 4059 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; |
92d7f7b0 | 4060 | pcmd += sizeof(uint32_t); |
dea3101e | 4061 | |
92d7f7b0 | 4062 | memset(pcmd, 0, sizeof(RNID)); |
dea3101e JB |
4063 | rn = (RNID *) (pcmd); |
4064 | rn->Format = format; | |
92d7f7b0 JS |
4065 | rn->CommonLen = (2 * sizeof(struct lpfc_name)); |
4066 | memcpy(&rn->portName, &vport->fc_portname, sizeof(struct lpfc_name)); | |
4067 | memcpy(&rn->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
dea3101e JB |
4068 | switch (format) { |
4069 | case 0: | |
4070 | rn->SpecificLen = 0; | |
4071 | break; | |
4072 | case RNID_TOPOLOGY_DISC: | |
92d7f7b0 | 4073 | rn->SpecificLen = sizeof(RNID_TOP_DISC); |
dea3101e | 4074 | memcpy(&rn->un.topologyDisc.portName, |
92d7f7b0 | 4075 | &vport->fc_portname, sizeof(struct lpfc_name)); |
dea3101e JB |
4076 | rn->un.topologyDisc.unitType = RNID_HBA; |
4077 | rn->un.topologyDisc.physPort = 0; | |
4078 | rn->un.topologyDisc.attachedNodes = 0; | |
4079 | break; | |
4080 | default: | |
4081 | rn->CommonLen = 0; | |
4082 | rn->SpecificLen = 0; | |
4083 | break; | |
4084 | } | |
4085 | ||
858c9f6c JS |
4086 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
4087 | "Issue ACC RNID: did:x%x flg:x%x", | |
4088 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
4089 | ||
dea3101e | 4090 | phba->fc_stat.elsXmitACC++; |
858c9f6c | 4091 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
dea3101e | 4092 | |
3772a991 | 4093 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
dea3101e JB |
4094 | if (rc == IOCB_ERROR) { |
4095 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 4096 | return 1; |
dea3101e | 4097 | } |
c9f8735b | 4098 | return 0; |
dea3101e JB |
4099 | } |
4100 | ||
19ca7609 JS |
4101 | /** |
4102 | * lpfc_els_clear_rrq - Clear the rq that this rrq describes. | |
4103 | * @vport: pointer to a virtual N_Port data structure. | |
4104 | * @iocb: pointer to the lpfc command iocb data structure. | |
4105 | * @ndlp: pointer to a node-list data structure. | |
4106 | * | |
4107 | * Return | |
4108 | **/ | |
4109 | static void | |
4110 | lpfc_els_clear_rrq(struct lpfc_vport *vport, | |
4111 | struct lpfc_iocbq *iocb, struct lpfc_nodelist *ndlp) | |
4112 | { | |
4113 | struct lpfc_hba *phba = vport->phba; | |
4114 | uint8_t *pcmd; | |
4115 | struct RRQ *rrq; | |
4116 | uint16_t rxid; | |
1151e3ec | 4117 | uint16_t xri; |
19ca7609 JS |
4118 | struct lpfc_node_rrq *prrq; |
4119 | ||
4120 | ||
4121 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) iocb->context2)->virt); | |
4122 | pcmd += sizeof(uint32_t); | |
4123 | rrq = (struct RRQ *)pcmd; | |
1151e3ec | 4124 | rrq->rrq_exchg = be32_to_cpu(rrq->rrq_exchg); |
9589b062 | 4125 | rxid = bf_get(rrq_rxid, rrq); |
19ca7609 JS |
4126 | |
4127 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
4128 | "2883 Clear RRQ for SID:x%x OXID:x%x RXID:x%x" | |
4129 | " x%x x%x\n", | |
1151e3ec | 4130 | be32_to_cpu(bf_get(rrq_did, rrq)), |
9589b062 | 4131 | bf_get(rrq_oxid, rrq), |
19ca7609 JS |
4132 | rxid, |
4133 | iocb->iotag, iocb->iocb.ulpContext); | |
4134 | ||
4135 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
4136 | "Clear RRQ: did:x%x flg:x%x exchg:x%.08x", | |
4137 | ndlp->nlp_DID, ndlp->nlp_flag, rrq->rrq_exchg); | |
1151e3ec | 4138 | if (vport->fc_myDID == be32_to_cpu(bf_get(rrq_did, rrq))) |
9589b062 | 4139 | xri = bf_get(rrq_oxid, rrq); |
1151e3ec JS |
4140 | else |
4141 | xri = rxid; | |
4142 | prrq = lpfc_get_active_rrq(vport, xri, ndlp->nlp_DID); | |
19ca7609 | 4143 | if (prrq) |
1151e3ec | 4144 | lpfc_clr_rrq_active(phba, xri, prrq); |
19ca7609 JS |
4145 | return; |
4146 | } | |
4147 | ||
12265f68 JS |
4148 | /** |
4149 | * lpfc_els_rsp_echo_acc - Issue echo acc response | |
4150 | * @vport: pointer to a virtual N_Port data structure. | |
4151 | * @data: pointer to echo data to return in the accept. | |
4152 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
4153 | * @ndlp: pointer to a node-list data structure. | |
4154 | * | |
4155 | * Return code | |
4156 | * 0 - Successfully issued acc echo response | |
4157 | * 1 - Failed to issue acc echo response | |
4158 | **/ | |
4159 | static int | |
4160 | lpfc_els_rsp_echo_acc(struct lpfc_vport *vport, uint8_t *data, | |
4161 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) | |
4162 | { | |
4163 | struct lpfc_hba *phba = vport->phba; | |
4164 | struct lpfc_iocbq *elsiocb; | |
4165 | struct lpfc_sli *psli; | |
4166 | uint8_t *pcmd; | |
4167 | uint16_t cmdsize; | |
4168 | int rc; | |
4169 | ||
4170 | psli = &phba->sli; | |
4171 | cmdsize = oldiocb->iocb.unsli3.rcvsli3.acc_len; | |
4172 | ||
bf08611b JS |
4173 | /* The accumulated length can exceed the BPL_SIZE. For |
4174 | * now, use this as the limit | |
4175 | */ | |
4176 | if (cmdsize > LPFC_BPL_SIZE) | |
4177 | cmdsize = LPFC_BPL_SIZE; | |
12265f68 JS |
4178 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
4179 | ndlp->nlp_DID, ELS_CMD_ACC); | |
4180 | if (!elsiocb) | |
4181 | return 1; | |
4182 | ||
7851fe2c JS |
4183 | elsiocb->iocb.ulpContext = oldiocb->iocb.ulpContext; /* Xri / rx_id */ |
4184 | elsiocb->iocb.unsli3.rcvsli3.ox_id = oldiocb->iocb.unsli3.rcvsli3.ox_id; | |
4185 | ||
12265f68 JS |
4186 | /* Xmit ECHO ACC response tag <ulpIoTag> */ |
4187 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
4188 | "2876 Xmit ECHO ACC response tag x%x xri x%x\n", | |
4189 | elsiocb->iotag, elsiocb->iocb.ulpContext); | |
4190 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
4191 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
4192 | pcmd += sizeof(uint32_t); | |
4193 | memcpy(pcmd, data, cmdsize - sizeof(uint32_t)); | |
4194 | ||
4195 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
4196 | "Issue ACC ECHO: did:x%x flg:x%x", | |
4197 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
4198 | ||
4199 | phba->fc_stat.elsXmitACC++; | |
4200 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; | |
12265f68 JS |
4201 | |
4202 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); | |
4203 | if (rc == IOCB_ERROR) { | |
4204 | lpfc_els_free_iocb(phba, elsiocb); | |
4205 | return 1; | |
4206 | } | |
4207 | return 0; | |
4208 | } | |
4209 | ||
e59058c4 | 4210 | /** |
3621a710 | 4211 | * lpfc_els_disc_adisc - Issue remaining adisc iocbs to npr nodes of a vport |
e59058c4 JS |
4212 | * @vport: pointer to a host virtual N_Port data structure. |
4213 | * | |
4214 | * This routine issues Address Discover (ADISC) ELS commands to those | |
4215 | * N_Ports which are in node port recovery state and ADISC has not been issued | |
4216 | * for the @vport. Each time an ELS ADISC IOCB is issued by invoking the | |
4217 | * lpfc_issue_els_adisc() routine, the per @vport number of discover count | |
4218 | * (num_disc_nodes) shall be incremented. If the num_disc_nodes reaches a | |
4219 | * pre-configured threshold (cfg_discovery_threads), the @vport fc_flag will | |
4220 | * be marked with FC_NLP_MORE bit and the process of issuing remaining ADISC | |
4221 | * IOCBs quit for later pick up. On the other hand, after walking through | |
4222 | * all the ndlps with the @vport and there is none ADISC IOCB issued, the | |
4223 | * @vport fc_flag shall be cleared with FC_NLP_MORE bit indicating there is | |
4224 | * no more ADISC need to be sent. | |
4225 | * | |
4226 | * Return code | |
4227 | * The number of N_Ports with adisc issued. | |
4228 | **/ | |
dea3101e | 4229 | int |
2e0fef85 | 4230 | lpfc_els_disc_adisc(struct lpfc_vport *vport) |
dea3101e | 4231 | { |
2e0fef85 | 4232 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
dea3101e | 4233 | struct lpfc_nodelist *ndlp, *next_ndlp; |
2e0fef85 | 4234 | int sentadisc = 0; |
dea3101e | 4235 | |
685f0bf7 | 4236 | /* go thru NPR nodes and issue any remaining ELS ADISCs */ |
2e0fef85 | 4237 | list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { |
e47c9093 JS |
4238 | if (!NLP_CHK_NODE_ACT(ndlp)) |
4239 | continue; | |
685f0bf7 JS |
4240 | if (ndlp->nlp_state == NLP_STE_NPR_NODE && |
4241 | (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 && | |
4242 | (ndlp->nlp_flag & NLP_NPR_ADISC) != 0) { | |
2e0fef85 | 4243 | spin_lock_irq(shost->host_lock); |
685f0bf7 | 4244 | ndlp->nlp_flag &= ~NLP_NPR_ADISC; |
2e0fef85 | 4245 | spin_unlock_irq(shost->host_lock); |
685f0bf7 | 4246 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 JS |
4247 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); |
4248 | lpfc_issue_els_adisc(vport, ndlp, 0); | |
685f0bf7 | 4249 | sentadisc++; |
2e0fef85 JS |
4250 | vport->num_disc_nodes++; |
4251 | if (vport->num_disc_nodes >= | |
3de2a653 | 4252 | vport->cfg_discovery_threads) { |
2e0fef85 JS |
4253 | spin_lock_irq(shost->host_lock); |
4254 | vport->fc_flag |= FC_NLP_MORE; | |
4255 | spin_unlock_irq(shost->host_lock); | |
685f0bf7 | 4256 | break; |
dea3101e JB |
4257 | } |
4258 | } | |
4259 | } | |
4260 | if (sentadisc == 0) { | |
2e0fef85 JS |
4261 | spin_lock_irq(shost->host_lock); |
4262 | vport->fc_flag &= ~FC_NLP_MORE; | |
4263 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 4264 | } |
2fe165b6 | 4265 | return sentadisc; |
dea3101e JB |
4266 | } |
4267 | ||
e59058c4 | 4268 | /** |
3621a710 | 4269 | * lpfc_els_disc_plogi - Issue plogi for all npr nodes of a vport before adisc |
e59058c4 JS |
4270 | * @vport: pointer to a host virtual N_Port data structure. |
4271 | * | |
4272 | * This routine issues Port Login (PLOGI) ELS commands to all the N_Ports | |
4273 | * which are in node port recovery state, with a @vport. Each time an ELS | |
4274 | * ADISC PLOGI IOCB is issued by invoking the lpfc_issue_els_plogi() routine, | |
4275 | * the per @vport number of discover count (num_disc_nodes) shall be | |
4276 | * incremented. If the num_disc_nodes reaches a pre-configured threshold | |
4277 | * (cfg_discovery_threads), the @vport fc_flag will be marked with FC_NLP_MORE | |
4278 | * bit set and quit the process of issuing remaining ADISC PLOGIN IOCBs for | |
4279 | * later pick up. On the other hand, after walking through all the ndlps with | |
4280 | * the @vport and there is none ADISC PLOGI IOCB issued, the @vport fc_flag | |
4281 | * shall be cleared with the FC_NLP_MORE bit indicating there is no more ADISC | |
4282 | * PLOGI need to be sent. | |
4283 | * | |
4284 | * Return code | |
4285 | * The number of N_Ports with plogi issued. | |
4286 | **/ | |
dea3101e | 4287 | int |
2e0fef85 | 4288 | lpfc_els_disc_plogi(struct lpfc_vport *vport) |
dea3101e | 4289 | { |
2e0fef85 | 4290 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
dea3101e | 4291 | struct lpfc_nodelist *ndlp, *next_ndlp; |
2e0fef85 | 4292 | int sentplogi = 0; |
dea3101e | 4293 | |
2e0fef85 JS |
4294 | /* go thru NPR nodes and issue any remaining ELS PLOGIs */ |
4295 | list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { | |
e47c9093 JS |
4296 | if (!NLP_CHK_NODE_ACT(ndlp)) |
4297 | continue; | |
685f0bf7 JS |
4298 | if (ndlp->nlp_state == NLP_STE_NPR_NODE && |
4299 | (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 && | |
4300 | (ndlp->nlp_flag & NLP_DELAY_TMO) == 0 && | |
4301 | (ndlp->nlp_flag & NLP_NPR_ADISC) == 0) { | |
4302 | ndlp->nlp_prev_state = ndlp->nlp_state; | |
2e0fef85 JS |
4303 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); |
4304 | lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); | |
685f0bf7 | 4305 | sentplogi++; |
2e0fef85 JS |
4306 | vport->num_disc_nodes++; |
4307 | if (vport->num_disc_nodes >= | |
3de2a653 | 4308 | vport->cfg_discovery_threads) { |
2e0fef85 JS |
4309 | spin_lock_irq(shost->host_lock); |
4310 | vport->fc_flag |= FC_NLP_MORE; | |
4311 | spin_unlock_irq(shost->host_lock); | |
685f0bf7 | 4312 | break; |
dea3101e JB |
4313 | } |
4314 | } | |
4315 | } | |
87af33fe JS |
4316 | if (sentplogi) { |
4317 | lpfc_set_disctmo(vport); | |
4318 | } | |
4319 | else { | |
2e0fef85 JS |
4320 | spin_lock_irq(shost->host_lock); |
4321 | vport->fc_flag &= ~FC_NLP_MORE; | |
4322 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 4323 | } |
2fe165b6 | 4324 | return sentplogi; |
dea3101e JB |
4325 | } |
4326 | ||
e59058c4 | 4327 | /** |
3621a710 | 4328 | * lpfc_els_flush_rscn - Clean up any rscn activities with a vport |
e59058c4 JS |
4329 | * @vport: pointer to a host virtual N_Port data structure. |
4330 | * | |
4331 | * This routine cleans up any Registration State Change Notification | |
4332 | * (RSCN) activity with a @vport. Note that the fc_rscn_flush flag of the | |
4333 | * @vport together with the host_lock is used to prevent multiple thread | |
4334 | * trying to access the RSCN array on a same @vport at the same time. | |
4335 | **/ | |
92d7f7b0 | 4336 | void |
2e0fef85 | 4337 | lpfc_els_flush_rscn(struct lpfc_vport *vport) |
dea3101e | 4338 | { |
2e0fef85 JS |
4339 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
4340 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
4341 | int i; |
4342 | ||
7f5f3d0d JS |
4343 | spin_lock_irq(shost->host_lock); |
4344 | if (vport->fc_rscn_flush) { | |
4345 | /* Another thread is walking fc_rscn_id_list on this vport */ | |
4346 | spin_unlock_irq(shost->host_lock); | |
4347 | return; | |
4348 | } | |
4349 | /* Indicate we are walking lpfc_els_flush_rscn on this vport */ | |
4350 | vport->fc_rscn_flush = 1; | |
4351 | spin_unlock_irq(shost->host_lock); | |
4352 | ||
2e0fef85 | 4353 | for (i = 0; i < vport->fc_rscn_id_cnt; i++) { |
92d7f7b0 | 4354 | lpfc_in_buf_free(phba, vport->fc_rscn_id_list[i]); |
2e0fef85 | 4355 | vport->fc_rscn_id_list[i] = NULL; |
dea3101e | 4356 | } |
2e0fef85 JS |
4357 | spin_lock_irq(shost->host_lock); |
4358 | vport->fc_rscn_id_cnt = 0; | |
4359 | vport->fc_flag &= ~(FC_RSCN_MODE | FC_RSCN_DISCOVERY); | |
4360 | spin_unlock_irq(shost->host_lock); | |
4361 | lpfc_can_disctmo(vport); | |
7f5f3d0d JS |
4362 | /* Indicate we are done walking this fc_rscn_id_list */ |
4363 | vport->fc_rscn_flush = 0; | |
dea3101e JB |
4364 | } |
4365 | ||
e59058c4 | 4366 | /** |
3621a710 | 4367 | * lpfc_rscn_payload_check - Check whether there is a pending rscn to a did |
e59058c4 JS |
4368 | * @vport: pointer to a host virtual N_Port data structure. |
4369 | * @did: remote destination port identifier. | |
4370 | * | |
4371 | * This routine checks whether there is any pending Registration State | |
4372 | * Configuration Notification (RSCN) to a @did on @vport. | |
4373 | * | |
4374 | * Return code | |
4375 | * None zero - The @did matched with a pending rscn | |
4376 | * 0 - not able to match @did with a pending rscn | |
4377 | **/ | |
dea3101e | 4378 | int |
2e0fef85 | 4379 | lpfc_rscn_payload_check(struct lpfc_vport *vport, uint32_t did) |
dea3101e JB |
4380 | { |
4381 | D_ID ns_did; | |
4382 | D_ID rscn_did; | |
dea3101e | 4383 | uint32_t *lp; |
92d7f7b0 | 4384 | uint32_t payload_len, i; |
7f5f3d0d | 4385 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
dea3101e JB |
4386 | |
4387 | ns_did.un.word = did; | |
dea3101e JB |
4388 | |
4389 | /* Never match fabric nodes for RSCNs */ | |
4390 | if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) | |
2e0fef85 | 4391 | return 0; |
dea3101e JB |
4392 | |
4393 | /* If we are doing a FULL RSCN rediscovery, match everything */ | |
2e0fef85 | 4394 | if (vport->fc_flag & FC_RSCN_DISCOVERY) |
c9f8735b | 4395 | return did; |
dea3101e | 4396 | |
7f5f3d0d JS |
4397 | spin_lock_irq(shost->host_lock); |
4398 | if (vport->fc_rscn_flush) { | |
4399 | /* Another thread is walking fc_rscn_id_list on this vport */ | |
4400 | spin_unlock_irq(shost->host_lock); | |
4401 | return 0; | |
4402 | } | |
4403 | /* Indicate we are walking fc_rscn_id_list on this vport */ | |
4404 | vport->fc_rscn_flush = 1; | |
4405 | spin_unlock_irq(shost->host_lock); | |
2e0fef85 | 4406 | for (i = 0; i < vport->fc_rscn_id_cnt; i++) { |
92d7f7b0 JS |
4407 | lp = vport->fc_rscn_id_list[i]->virt; |
4408 | payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK); | |
4409 | payload_len -= sizeof(uint32_t); /* take off word 0 */ | |
dea3101e | 4410 | while (payload_len) { |
92d7f7b0 JS |
4411 | rscn_did.un.word = be32_to_cpu(*lp++); |
4412 | payload_len -= sizeof(uint32_t); | |
eaf15d5b JS |
4413 | switch (rscn_did.un.b.resv & RSCN_ADDRESS_FORMAT_MASK) { |
4414 | case RSCN_ADDRESS_FORMAT_PORT: | |
6fb120a7 JS |
4415 | if ((ns_did.un.b.domain == rscn_did.un.b.domain) |
4416 | && (ns_did.un.b.area == rscn_did.un.b.area) | |
4417 | && (ns_did.un.b.id == rscn_did.un.b.id)) | |
7f5f3d0d | 4418 | goto return_did_out; |
dea3101e | 4419 | break; |
eaf15d5b | 4420 | case RSCN_ADDRESS_FORMAT_AREA: |
dea3101e JB |
4421 | if ((ns_did.un.b.domain == rscn_did.un.b.domain) |
4422 | && (ns_did.un.b.area == rscn_did.un.b.area)) | |
7f5f3d0d | 4423 | goto return_did_out; |
dea3101e | 4424 | break; |
eaf15d5b | 4425 | case RSCN_ADDRESS_FORMAT_DOMAIN: |
dea3101e | 4426 | if (ns_did.un.b.domain == rscn_did.un.b.domain) |
7f5f3d0d | 4427 | goto return_did_out; |
dea3101e | 4428 | break; |
eaf15d5b | 4429 | case RSCN_ADDRESS_FORMAT_FABRIC: |
7f5f3d0d | 4430 | goto return_did_out; |
dea3101e JB |
4431 | } |
4432 | } | |
92d7f7b0 | 4433 | } |
7f5f3d0d JS |
4434 | /* Indicate we are done with walking fc_rscn_id_list on this vport */ |
4435 | vport->fc_rscn_flush = 0; | |
92d7f7b0 | 4436 | return 0; |
7f5f3d0d JS |
4437 | return_did_out: |
4438 | /* Indicate we are done with walking fc_rscn_id_list on this vport */ | |
4439 | vport->fc_rscn_flush = 0; | |
4440 | return did; | |
dea3101e JB |
4441 | } |
4442 | ||
e59058c4 | 4443 | /** |
3621a710 | 4444 | * lpfc_rscn_recovery_check - Send recovery event to vport nodes matching rscn |
e59058c4 JS |
4445 | * @vport: pointer to a host virtual N_Port data structure. |
4446 | * | |
4447 | * This routine sends recovery (NLP_EVT_DEVICE_RECOVERY) event to the | |
4448 | * state machine for a @vport's nodes that are with pending RSCN (Registration | |
4449 | * State Change Notification). | |
4450 | * | |
4451 | * Return code | |
4452 | * 0 - Successful (currently alway return 0) | |
4453 | **/ | |
dea3101e | 4454 | static int |
2e0fef85 | 4455 | lpfc_rscn_recovery_check(struct lpfc_vport *vport) |
dea3101e | 4456 | { |
685f0bf7 | 4457 | struct lpfc_nodelist *ndlp = NULL; |
dea3101e | 4458 | |
0d2b6b83 | 4459 | /* Move all affected nodes by pending RSCNs to NPR state. */ |
2e0fef85 | 4460 | list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { |
e47c9093 | 4461 | if (!NLP_CHK_NODE_ACT(ndlp) || |
0d2b6b83 JS |
4462 | (ndlp->nlp_state == NLP_STE_UNUSED_NODE) || |
4463 | !lpfc_rscn_payload_check(vport, ndlp->nlp_DID)) | |
685f0bf7 | 4464 | continue; |
2e0fef85 | 4465 | lpfc_disc_state_machine(vport, ndlp, NULL, |
0d2b6b83 JS |
4466 | NLP_EVT_DEVICE_RECOVERY); |
4467 | lpfc_cancel_retry_delay_tmo(vport, ndlp); | |
dea3101e | 4468 | } |
c9f8735b | 4469 | return 0; |
dea3101e JB |
4470 | } |
4471 | ||
ddcc50f0 | 4472 | /** |
3621a710 | 4473 | * lpfc_send_rscn_event - Send an RSCN event to management application |
ddcc50f0 JS |
4474 | * @vport: pointer to a host virtual N_Port data structure. |
4475 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4476 | * | |
4477 | * lpfc_send_rscn_event sends an RSCN netlink event to management | |
4478 | * applications. | |
4479 | */ | |
4480 | static void | |
4481 | lpfc_send_rscn_event(struct lpfc_vport *vport, | |
4482 | struct lpfc_iocbq *cmdiocb) | |
4483 | { | |
4484 | struct lpfc_dmabuf *pcmd; | |
4485 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
4486 | uint32_t *payload_ptr; | |
4487 | uint32_t payload_len; | |
4488 | struct lpfc_rscn_event_header *rscn_event_data; | |
4489 | ||
4490 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
4491 | payload_ptr = (uint32_t *) pcmd->virt; | |
4492 | payload_len = be32_to_cpu(*payload_ptr & ~ELS_CMD_MASK); | |
4493 | ||
4494 | rscn_event_data = kmalloc(sizeof(struct lpfc_rscn_event_header) + | |
4495 | payload_len, GFP_KERNEL); | |
4496 | if (!rscn_event_data) { | |
4497 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
4498 | "0147 Failed to allocate memory for RSCN event\n"); | |
4499 | return; | |
4500 | } | |
4501 | rscn_event_data->event_type = FC_REG_RSCN_EVENT; | |
4502 | rscn_event_data->payload_length = payload_len; | |
4503 | memcpy(rscn_event_data->rscn_payload, payload_ptr, | |
4504 | payload_len); | |
4505 | ||
4506 | fc_host_post_vendor_event(shost, | |
4507 | fc_get_event_number(), | |
4508 | sizeof(struct lpfc_els_event_header) + payload_len, | |
4509 | (char *)rscn_event_data, | |
4510 | LPFC_NL_VENDOR_ID); | |
4511 | ||
4512 | kfree(rscn_event_data); | |
4513 | } | |
4514 | ||
e59058c4 | 4515 | /** |
3621a710 | 4516 | * lpfc_els_rcv_rscn - Process an unsolicited rscn iocb |
e59058c4 JS |
4517 | * @vport: pointer to a host virtual N_Port data structure. |
4518 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4519 | * @ndlp: pointer to a node-list data structure. | |
4520 | * | |
4521 | * This routine processes an unsolicited RSCN (Registration State Change | |
4522 | * Notification) IOCB. First, the payload of the unsolicited RSCN is walked | |
4523 | * to invoke fc_host_post_event() routine to the FC transport layer. If the | |
4524 | * discover state machine is about to begin discovery, it just accepts the | |
4525 | * RSCN and the discovery process will satisfy the RSCN. If this RSCN only | |
4526 | * contains N_Port IDs for other vports on this HBA, it just accepts the | |
4527 | * RSCN and ignore processing it. If the state machine is in the recovery | |
4528 | * state, the fc_rscn_id_list of this @vport is walked and the | |
4529 | * lpfc_rscn_recovery_check() routine is invoked to send recovery event for | |
4530 | * all nodes that match RSCN payload. Otherwise, the lpfc_els_handle_rscn() | |
4531 | * routine is invoked to handle the RSCN event. | |
4532 | * | |
4533 | * Return code | |
4534 | * 0 - Just sent the acc response | |
4535 | * 1 - Sent the acc response and waited for name server completion | |
4536 | **/ | |
dea3101e | 4537 | static int |
2e0fef85 | 4538 | lpfc_els_rcv_rscn(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
51ef4c26 | 4539 | struct lpfc_nodelist *ndlp) |
dea3101e | 4540 | { |
2e0fef85 JS |
4541 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
4542 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 4543 | struct lpfc_dmabuf *pcmd; |
92d7f7b0 | 4544 | uint32_t *lp, *datap; |
dea3101e | 4545 | IOCB_t *icmd; |
92d7f7b0 | 4546 | uint32_t payload_len, length, nportid, *cmd; |
7f5f3d0d | 4547 | int rscn_cnt; |
92d7f7b0 | 4548 | int rscn_id = 0, hba_id = 0; |
d2873e4c | 4549 | int i; |
dea3101e JB |
4550 | |
4551 | icmd = &cmdiocb->iocb; | |
4552 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
4553 | lp = (uint32_t *) pcmd->virt; | |
4554 | ||
92d7f7b0 JS |
4555 | payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK); |
4556 | payload_len -= sizeof(uint32_t); /* take off word 0 */ | |
dea3101e | 4557 | /* RSCN received */ |
e8b62011 JS |
4558 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
4559 | "0214 RSCN received Data: x%x x%x x%x x%x\n", | |
7f5f3d0d JS |
4560 | vport->fc_flag, payload_len, *lp, |
4561 | vport->fc_rscn_id_cnt); | |
ddcc50f0 JS |
4562 | |
4563 | /* Send an RSCN event to the management application */ | |
4564 | lpfc_send_rscn_event(vport, cmdiocb); | |
4565 | ||
d2873e4c | 4566 | for (i = 0; i < payload_len/sizeof(uint32_t); i++) |
2e0fef85 | 4567 | fc_host_post_event(shost, fc_get_event_number(), |
d2873e4c JS |
4568 | FCH_EVT_RSCN, lp[i]); |
4569 | ||
dea3101e JB |
4570 | /* If we are about to begin discovery, just ACC the RSCN. |
4571 | * Discovery processing will satisfy it. | |
4572 | */ | |
2e0fef85 | 4573 | if (vport->port_state <= LPFC_NS_QRY) { |
858c9f6c JS |
4574 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
4575 | "RCV RSCN ignore: did:x%x/ste:x%x flg:x%x", | |
4576 | ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); | |
4577 | ||
51ef4c26 | 4578 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
c9f8735b | 4579 | return 0; |
dea3101e JB |
4580 | } |
4581 | ||
92d7f7b0 JS |
4582 | /* If this RSCN just contains NPortIDs for other vports on this HBA, |
4583 | * just ACC and ignore it. | |
4584 | */ | |
4585 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && | |
3de2a653 | 4586 | !(vport->cfg_peer_port_login)) { |
92d7f7b0 JS |
4587 | i = payload_len; |
4588 | datap = lp; | |
4589 | while (i > 0) { | |
4590 | nportid = *datap++; | |
4591 | nportid = ((be32_to_cpu(nportid)) & Mask_DID); | |
4592 | i -= sizeof(uint32_t); | |
4593 | rscn_id++; | |
549e55cd JS |
4594 | if (lpfc_find_vport_by_did(phba, nportid)) |
4595 | hba_id++; | |
92d7f7b0 JS |
4596 | } |
4597 | if (rscn_id == hba_id) { | |
4598 | /* ALL NPortIDs in RSCN are on HBA */ | |
e8b62011 | 4599 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
d7c255b2 | 4600 | "0219 Ignore RSCN " |
e8b62011 JS |
4601 | "Data: x%x x%x x%x x%x\n", |
4602 | vport->fc_flag, payload_len, | |
7f5f3d0d | 4603 | *lp, vport->fc_rscn_id_cnt); |
858c9f6c JS |
4604 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
4605 | "RCV RSCN vport: did:x%x/ste:x%x flg:x%x", | |
4606 | ndlp->nlp_DID, vport->port_state, | |
4607 | ndlp->nlp_flag); | |
4608 | ||
92d7f7b0 | 4609 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, |
51ef4c26 | 4610 | ndlp, NULL); |
92d7f7b0 JS |
4611 | return 0; |
4612 | } | |
4613 | } | |
4614 | ||
7f5f3d0d JS |
4615 | spin_lock_irq(shost->host_lock); |
4616 | if (vport->fc_rscn_flush) { | |
4617 | /* Another thread is walking fc_rscn_id_list on this vport */ | |
7f5f3d0d | 4618 | vport->fc_flag |= FC_RSCN_DISCOVERY; |
97957244 | 4619 | spin_unlock_irq(shost->host_lock); |
58da1ffb JS |
4620 | /* Send back ACC */ |
4621 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); | |
7f5f3d0d JS |
4622 | return 0; |
4623 | } | |
4624 | /* Indicate we are walking fc_rscn_id_list on this vport */ | |
4625 | vport->fc_rscn_flush = 1; | |
4626 | spin_unlock_irq(shost->host_lock); | |
af901ca1 | 4627 | /* Get the array count after successfully have the token */ |
7f5f3d0d | 4628 | rscn_cnt = vport->fc_rscn_id_cnt; |
dea3101e JB |
4629 | /* If we are already processing an RSCN, save the received |
4630 | * RSCN payload buffer, cmdiocb->context2 to process later. | |
4631 | */ | |
2e0fef85 | 4632 | if (vport->fc_flag & (FC_RSCN_MODE | FC_NDISC_ACTIVE)) { |
858c9f6c JS |
4633 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
4634 | "RCV RSCN defer: did:x%x/ste:x%x flg:x%x", | |
4635 | ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); | |
4636 | ||
09372820 | 4637 | spin_lock_irq(shost->host_lock); |
92d7f7b0 JS |
4638 | vport->fc_flag |= FC_RSCN_DEFERRED; |
4639 | if ((rscn_cnt < FC_MAX_HOLD_RSCN) && | |
2e0fef85 | 4640 | !(vport->fc_flag & FC_RSCN_DISCOVERY)) { |
2e0fef85 JS |
4641 | vport->fc_flag |= FC_RSCN_MODE; |
4642 | spin_unlock_irq(shost->host_lock); | |
92d7f7b0 JS |
4643 | if (rscn_cnt) { |
4644 | cmd = vport->fc_rscn_id_list[rscn_cnt-1]->virt; | |
4645 | length = be32_to_cpu(*cmd & ~ELS_CMD_MASK); | |
4646 | } | |
4647 | if ((rscn_cnt) && | |
4648 | (payload_len + length <= LPFC_BPL_SIZE)) { | |
4649 | *cmd &= ELS_CMD_MASK; | |
7f5f3d0d | 4650 | *cmd |= cpu_to_be32(payload_len + length); |
92d7f7b0 JS |
4651 | memcpy(((uint8_t *)cmd) + length, lp, |
4652 | payload_len); | |
4653 | } else { | |
4654 | vport->fc_rscn_id_list[rscn_cnt] = pcmd; | |
4655 | vport->fc_rscn_id_cnt++; | |
4656 | /* If we zero, cmdiocb->context2, the calling | |
4657 | * routine will not try to free it. | |
4658 | */ | |
4659 | cmdiocb->context2 = NULL; | |
4660 | } | |
dea3101e | 4661 | /* Deferred RSCN */ |
e8b62011 JS |
4662 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
4663 | "0235 Deferred RSCN " | |
4664 | "Data: x%x x%x x%x\n", | |
4665 | vport->fc_rscn_id_cnt, vport->fc_flag, | |
4666 | vport->port_state); | |
dea3101e | 4667 | } else { |
2e0fef85 JS |
4668 | vport->fc_flag |= FC_RSCN_DISCOVERY; |
4669 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 4670 | /* ReDiscovery RSCN */ |
e8b62011 JS |
4671 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
4672 | "0234 ReDiscovery RSCN " | |
4673 | "Data: x%x x%x x%x\n", | |
4674 | vport->fc_rscn_id_cnt, vport->fc_flag, | |
4675 | vport->port_state); | |
dea3101e | 4676 | } |
7f5f3d0d JS |
4677 | /* Indicate we are done walking fc_rscn_id_list on this vport */ |
4678 | vport->fc_rscn_flush = 0; | |
dea3101e | 4679 | /* Send back ACC */ |
51ef4c26 | 4680 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
dea3101e | 4681 | /* send RECOVERY event for ALL nodes that match RSCN payload */ |
2e0fef85 | 4682 | lpfc_rscn_recovery_check(vport); |
09372820 | 4683 | spin_lock_irq(shost->host_lock); |
92d7f7b0 | 4684 | vport->fc_flag &= ~FC_RSCN_DEFERRED; |
09372820 | 4685 | spin_unlock_irq(shost->host_lock); |
c9f8735b | 4686 | return 0; |
dea3101e | 4687 | } |
858c9f6c JS |
4688 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
4689 | "RCV RSCN: did:x%x/ste:x%x flg:x%x", | |
4690 | ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); | |
4691 | ||
2e0fef85 JS |
4692 | spin_lock_irq(shost->host_lock); |
4693 | vport->fc_flag |= FC_RSCN_MODE; | |
4694 | spin_unlock_irq(shost->host_lock); | |
4695 | vport->fc_rscn_id_list[vport->fc_rscn_id_cnt++] = pcmd; | |
7f5f3d0d JS |
4696 | /* Indicate we are done walking fc_rscn_id_list on this vport */ |
4697 | vport->fc_rscn_flush = 0; | |
dea3101e JB |
4698 | /* |
4699 | * If we zero, cmdiocb->context2, the calling routine will | |
4700 | * not try to free it. | |
4701 | */ | |
4702 | cmdiocb->context2 = NULL; | |
2e0fef85 | 4703 | lpfc_set_disctmo(vport); |
dea3101e | 4704 | /* Send back ACC */ |
51ef4c26 | 4705 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
dea3101e | 4706 | /* send RECOVERY event for ALL nodes that match RSCN payload */ |
2e0fef85 | 4707 | lpfc_rscn_recovery_check(vport); |
2e0fef85 | 4708 | return lpfc_els_handle_rscn(vport); |
dea3101e JB |
4709 | } |
4710 | ||
e59058c4 | 4711 | /** |
3621a710 | 4712 | * lpfc_els_handle_rscn - Handle rscn for a vport |
e59058c4 JS |
4713 | * @vport: pointer to a host virtual N_Port data structure. |
4714 | * | |
4715 | * This routine handles the Registration State Configuration Notification | |
4716 | * (RSCN) for a @vport. If login to NameServer does not exist, a new ndlp shall | |
4717 | * be created and a Port Login (PLOGI) to the NameServer is issued. Otherwise, | |
4718 | * if the ndlp to NameServer exists, a Common Transport (CT) command to the | |
4719 | * NameServer shall be issued. If CT command to the NameServer fails to be | |
4720 | * issued, the lpfc_els_flush_rscn() routine shall be invoked to clean up any | |
4721 | * RSCN activities with the @vport. | |
4722 | * | |
4723 | * Return code | |
4724 | * 0 - Cleaned up rscn on the @vport | |
4725 | * 1 - Wait for plogi to name server before proceed | |
4726 | **/ | |
dea3101e | 4727 | int |
2e0fef85 | 4728 | lpfc_els_handle_rscn(struct lpfc_vport *vport) |
dea3101e JB |
4729 | { |
4730 | struct lpfc_nodelist *ndlp; | |
2e0fef85 | 4731 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 4732 | |
92d7f7b0 JS |
4733 | /* Ignore RSCN if the port is being torn down. */ |
4734 | if (vport->load_flag & FC_UNLOADING) { | |
4735 | lpfc_els_flush_rscn(vport); | |
4736 | return 0; | |
4737 | } | |
4738 | ||
dea3101e | 4739 | /* Start timer for RSCN processing */ |
2e0fef85 | 4740 | lpfc_set_disctmo(vport); |
dea3101e JB |
4741 | |
4742 | /* RSCN processed */ | |
e8b62011 JS |
4743 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
4744 | "0215 RSCN processed Data: x%x x%x x%x x%x\n", | |
4745 | vport->fc_flag, 0, vport->fc_rscn_id_cnt, | |
4746 | vport->port_state); | |
dea3101e JB |
4747 | |
4748 | /* To process RSCN, first compare RSCN data with NameServer */ | |
2e0fef85 | 4749 | vport->fc_ns_retry = 0; |
0ff10d46 JS |
4750 | vport->num_disc_nodes = 0; |
4751 | ||
2e0fef85 | 4752 | ndlp = lpfc_findnode_did(vport, NameServer_DID); |
e47c9093 JS |
4753 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) |
4754 | && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) { | |
dea3101e | 4755 | /* Good ndlp, issue CT Request to NameServer */ |
92d7f7b0 | 4756 | if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0) == 0) |
dea3101e JB |
4757 | /* Wait for NameServer query cmpl before we can |
4758 | continue */ | |
c9f8735b | 4759 | return 1; |
dea3101e JB |
4760 | } else { |
4761 | /* If login to NameServer does not exist, issue one */ | |
4762 | /* Good status, issue PLOGI to NameServer */ | |
2e0fef85 | 4763 | ndlp = lpfc_findnode_did(vport, NameServer_DID); |
e47c9093 | 4764 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) |
dea3101e JB |
4765 | /* Wait for NameServer login cmpl before we can |
4766 | continue */ | |
c9f8735b | 4767 | return 1; |
2e0fef85 | 4768 | |
e47c9093 JS |
4769 | if (ndlp) { |
4770 | ndlp = lpfc_enable_node(vport, ndlp, | |
4771 | NLP_STE_PLOGI_ISSUE); | |
4772 | if (!ndlp) { | |
4773 | lpfc_els_flush_rscn(vport); | |
4774 | return 0; | |
4775 | } | |
4776 | ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE; | |
dea3101e | 4777 | } else { |
e47c9093 JS |
4778 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); |
4779 | if (!ndlp) { | |
4780 | lpfc_els_flush_rscn(vport); | |
4781 | return 0; | |
4782 | } | |
2e0fef85 | 4783 | lpfc_nlp_init(vport, ndlp, NameServer_DID); |
5024ab17 | 4784 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 4785 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); |
dea3101e | 4786 | } |
e47c9093 JS |
4787 | ndlp->nlp_type |= NLP_FABRIC; |
4788 | lpfc_issue_els_plogi(vport, NameServer_DID, 0); | |
4789 | /* Wait for NameServer login cmpl before we can | |
4790 | * continue | |
4791 | */ | |
4792 | return 1; | |
dea3101e JB |
4793 | } |
4794 | ||
2e0fef85 | 4795 | lpfc_els_flush_rscn(vport); |
c9f8735b | 4796 | return 0; |
dea3101e JB |
4797 | } |
4798 | ||
e59058c4 | 4799 | /** |
3621a710 | 4800 | * lpfc_els_rcv_flogi - Process an unsolicited flogi iocb |
e59058c4 JS |
4801 | * @vport: pointer to a host virtual N_Port data structure. |
4802 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4803 | * @ndlp: pointer to a node-list data structure. | |
4804 | * | |
4805 | * This routine processes Fabric Login (FLOGI) IOCB received as an ELS | |
4806 | * unsolicited event. An unsolicited FLOGI can be received in a point-to- | |
4807 | * point topology. As an unsolicited FLOGI should not be received in a loop | |
4808 | * mode, any unsolicited FLOGI received in loop mode shall be ignored. The | |
4809 | * lpfc_check_sparm() routine is invoked to check the parameters in the | |
4810 | * unsolicited FLOGI. If parameters validation failed, the routine | |
4811 | * lpfc_els_rsp_reject() shall be called with reject reason code set to | |
4812 | * LSEXP_SPARM_OPTIONS to reject the FLOGI. Otherwise, the Port WWN in the | |
4813 | * FLOGI shall be compared with the Port WWN of the @vport to determine who | |
4814 | * will initiate PLOGI. The higher lexicographical value party shall has | |
4815 | * higher priority (as the winning port) and will initiate PLOGI and | |
4816 | * communicate Port_IDs (Addresses) for both nodes in PLOGI. The result | |
4817 | * of this will be marked in the @vport fc_flag field with FC_PT2PT_PLOGI | |
4818 | * and then the lpfc_els_rsp_acc() routine is invoked to accept the FLOGI. | |
4819 | * | |
4820 | * Return code | |
4821 | * 0 - Successfully processed the unsolicited flogi | |
4822 | * 1 - Failed to process the unsolicited flogi | |
4823 | **/ | |
dea3101e | 4824 | static int |
2e0fef85 | 4825 | lpfc_els_rcv_flogi(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
51ef4c26 | 4826 | struct lpfc_nodelist *ndlp) |
dea3101e | 4827 | { |
2e0fef85 JS |
4828 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
4829 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
4830 | struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; |
4831 | uint32_t *lp = (uint32_t *) pcmd->virt; | |
4832 | IOCB_t *icmd = &cmdiocb->iocb; | |
4833 | struct serv_parm *sp; | |
4834 | LPFC_MBOXQ_t *mbox; | |
4835 | struct ls_rjt stat; | |
4836 | uint32_t cmd, did; | |
4837 | int rc; | |
4838 | ||
4839 | cmd = *lp++; | |
4840 | sp = (struct serv_parm *) lp; | |
4841 | ||
4842 | /* FLOGI received */ | |
4843 | ||
2e0fef85 | 4844 | lpfc_set_disctmo(vport); |
dea3101e | 4845 | |
76a95d75 | 4846 | if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { |
dea3101e JB |
4847 | /* We should never receive a FLOGI in loop mode, ignore it */ |
4848 | did = icmd->un.elsreq64.remoteID; | |
4849 | ||
4850 | /* An FLOGI ELS command <elsCmd> was received from DID <did> in | |
4851 | Loop Mode */ | |
e8b62011 JS |
4852 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
4853 | "0113 An FLOGI ELS command x%x was " | |
4854 | "received from DID x%x in Loop Mode\n", | |
4855 | cmd, did); | |
c9f8735b | 4856 | return 1; |
dea3101e JB |
4857 | } |
4858 | ||
4859 | did = Fabric_DID; | |
4860 | ||
341af102 | 4861 | if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3, 1))) { |
dea3101e JB |
4862 | /* For a FLOGI we accept, then if our portname is greater |
4863 | * then the remote portname we initiate Nport login. | |
4864 | */ | |
4865 | ||
2e0fef85 | 4866 | rc = memcmp(&vport->fc_portname, &sp->portName, |
92d7f7b0 | 4867 | sizeof(struct lpfc_name)); |
dea3101e JB |
4868 | |
4869 | if (!rc) { | |
2e0fef85 JS |
4870 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
4871 | if (!mbox) | |
c9f8735b | 4872 | return 1; |
2e0fef85 | 4873 | |
dea3101e JB |
4874 | lpfc_linkdown(phba); |
4875 | lpfc_init_link(phba, mbox, | |
4876 | phba->cfg_topology, | |
4877 | phba->cfg_link_speed); | |
04c68496 | 4878 | mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; |
dea3101e | 4879 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; |
ed957684 | 4880 | mbox->vport = vport; |
0b727fea | 4881 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
5b8bd0c9 | 4882 | lpfc_set_loopback_flag(phba); |
dea3101e | 4883 | if (rc == MBX_NOT_FINISHED) { |
329f9bc7 | 4884 | mempool_free(mbox, phba->mbox_mem_pool); |
dea3101e | 4885 | } |
c9f8735b | 4886 | return 1; |
2fe165b6 | 4887 | } else if (rc > 0) { /* greater than */ |
2e0fef85 JS |
4888 | spin_lock_irq(shost->host_lock); |
4889 | vport->fc_flag |= FC_PT2PT_PLOGI; | |
4890 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 4891 | } |
2e0fef85 JS |
4892 | spin_lock_irq(shost->host_lock); |
4893 | vport->fc_flag |= FC_PT2PT; | |
4894 | vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
4895 | spin_unlock_irq(shost->host_lock); | |
dea3101e JB |
4896 | } else { |
4897 | /* Reject this request because invalid parameters */ | |
4898 | stat.un.b.lsRjtRsvd0 = 0; | |
4899 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
4900 | stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; | |
4901 | stat.un.b.vendorUnique = 0; | |
858c9f6c JS |
4902 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, |
4903 | NULL); | |
c9f8735b | 4904 | return 1; |
dea3101e JB |
4905 | } |
4906 | ||
4907 | /* Send back ACC */ | |
51ef4c26 | 4908 | lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL); |
dea3101e | 4909 | |
c9f8735b | 4910 | return 0; |
dea3101e JB |
4911 | } |
4912 | ||
e59058c4 | 4913 | /** |
3621a710 | 4914 | * lpfc_els_rcv_rnid - Process an unsolicited rnid iocb |
e59058c4 JS |
4915 | * @vport: pointer to a host virtual N_Port data structure. |
4916 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4917 | * @ndlp: pointer to a node-list data structure. | |
4918 | * | |
4919 | * This routine processes Request Node Identification Data (RNID) IOCB | |
4920 | * received as an ELS unsolicited event. Only when the RNID specified format | |
4921 | * 0x0 or 0xDF (Topology Discovery Specific Node Identification Data) | |
4922 | * present, this routine will invoke the lpfc_els_rsp_rnid_acc() routine to | |
4923 | * Accept (ACC) the RNID ELS command. All the other RNID formats are | |
4924 | * rejected by invoking the lpfc_els_rsp_reject() routine. | |
4925 | * | |
4926 | * Return code | |
4927 | * 0 - Successfully processed rnid iocb (currently always return 0) | |
4928 | **/ | |
dea3101e | 4929 | static int |
2e0fef85 JS |
4930 | lpfc_els_rcv_rnid(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
4931 | struct lpfc_nodelist *ndlp) | |
dea3101e JB |
4932 | { |
4933 | struct lpfc_dmabuf *pcmd; | |
4934 | uint32_t *lp; | |
4935 | IOCB_t *icmd; | |
4936 | RNID *rn; | |
4937 | struct ls_rjt stat; | |
4938 | uint32_t cmd, did; | |
4939 | ||
4940 | icmd = &cmdiocb->iocb; | |
4941 | did = icmd->un.elsreq64.remoteID; | |
4942 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
4943 | lp = (uint32_t *) pcmd->virt; | |
4944 | ||
4945 | cmd = *lp++; | |
4946 | rn = (RNID *) lp; | |
4947 | ||
4948 | /* RNID received */ | |
4949 | ||
4950 | switch (rn->Format) { | |
4951 | case 0: | |
4952 | case RNID_TOPOLOGY_DISC: | |
4953 | /* Send back ACC */ | |
2e0fef85 | 4954 | lpfc_els_rsp_rnid_acc(vport, rn->Format, cmdiocb, ndlp); |
dea3101e JB |
4955 | break; |
4956 | default: | |
4957 | /* Reject this request because format not supported */ | |
4958 | stat.un.b.lsRjtRsvd0 = 0; | |
4959 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
4960 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
4961 | stat.un.b.vendorUnique = 0; | |
858c9f6c JS |
4962 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, |
4963 | NULL); | |
dea3101e | 4964 | } |
c9f8735b | 4965 | return 0; |
dea3101e JB |
4966 | } |
4967 | ||
12265f68 JS |
4968 | /** |
4969 | * lpfc_els_rcv_echo - Process an unsolicited echo iocb | |
4970 | * @vport: pointer to a host virtual N_Port data structure. | |
4971 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4972 | * @ndlp: pointer to a node-list data structure. | |
4973 | * | |
4974 | * Return code | |
4975 | * 0 - Successfully processed echo iocb (currently always return 0) | |
4976 | **/ | |
4977 | static int | |
4978 | lpfc_els_rcv_echo(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, | |
4979 | struct lpfc_nodelist *ndlp) | |
4980 | { | |
4981 | uint8_t *pcmd; | |
4982 | ||
4983 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt); | |
4984 | ||
4985 | /* skip over first word of echo command to find echo data */ | |
4986 | pcmd += sizeof(uint32_t); | |
4987 | ||
4988 | lpfc_els_rsp_echo_acc(vport, pcmd, cmdiocb, ndlp); | |
4989 | return 0; | |
4990 | } | |
4991 | ||
e59058c4 | 4992 | /** |
3621a710 | 4993 | * lpfc_els_rcv_lirr - Process an unsolicited lirr iocb |
e59058c4 JS |
4994 | * @vport: pointer to a host virtual N_Port data structure. |
4995 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4996 | * @ndlp: pointer to a node-list data structure. | |
4997 | * | |
4998 | * This routine processes a Link Incident Report Registration(LIRR) IOCB | |
4999 | * received as an ELS unsolicited event. Currently, this function just invokes | |
5000 | * the lpfc_els_rsp_reject() routine to reject the LIRR IOCB unconditionally. | |
5001 | * | |
5002 | * Return code | |
5003 | * 0 - Successfully processed lirr iocb (currently always return 0) | |
5004 | **/ | |
dea3101e | 5005 | static int |
2e0fef85 JS |
5006 | lpfc_els_rcv_lirr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
5007 | struct lpfc_nodelist *ndlp) | |
7bb3b137 JW |
5008 | { |
5009 | struct ls_rjt stat; | |
5010 | ||
5011 | /* For now, unconditionally reject this command */ | |
5012 | stat.un.b.lsRjtRsvd0 = 0; | |
5013 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
5014 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
5015 | stat.un.b.vendorUnique = 0; | |
858c9f6c | 5016 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); |
7bb3b137 JW |
5017 | return 0; |
5018 | } | |
5019 | ||
5ffc266e JS |
5020 | /** |
5021 | * lpfc_els_rcv_rrq - Process an unsolicited rrq iocb | |
5022 | * @vport: pointer to a host virtual N_Port data structure. | |
5023 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5024 | * @ndlp: pointer to a node-list data structure. | |
5025 | * | |
5026 | * This routine processes a Reinstate Recovery Qualifier (RRQ) IOCB | |
5027 | * received as an ELS unsolicited event. A request to RRQ shall only | |
5028 | * be accepted if the Originator Nx_Port N_Port_ID or the Responder | |
5029 | * Nx_Port N_Port_ID of the target Exchange is the same as the | |
5030 | * N_Port_ID of the Nx_Port that makes the request. If the RRQ is | |
5031 | * not accepted, an LS_RJT with reason code "Unable to perform | |
5032 | * command request" and reason code explanation "Invalid Originator | |
5033 | * S_ID" shall be returned. For now, we just unconditionally accept | |
5034 | * RRQ from the target. | |
5035 | **/ | |
5036 | static void | |
5037 | lpfc_els_rcv_rrq(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, | |
5038 | struct lpfc_nodelist *ndlp) | |
5039 | { | |
5040 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); | |
19ca7609 JS |
5041 | if (vport->phba->sli_rev == LPFC_SLI_REV4) |
5042 | lpfc_els_clear_rrq(vport, cmdiocb, ndlp); | |
5ffc266e JS |
5043 | } |
5044 | ||
12265f68 JS |
5045 | /** |
5046 | * lpfc_els_rsp_rls_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd | |
5047 | * @phba: pointer to lpfc hba data structure. | |
5048 | * @pmb: pointer to the driver internal queue element for mailbox command. | |
5049 | * | |
5050 | * This routine is the completion callback function for the MBX_READ_LNK_STAT | |
5051 | * mailbox command. This callback function is to actually send the Accept | |
5052 | * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It | |
5053 | * collects the link statistics from the completion of the MBX_READ_LNK_STAT | |
5054 | * mailbox command, constructs the RPS response with the link statistics | |
5055 | * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC | |
5056 | * response to the RPS. | |
5057 | * | |
5058 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
5059 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
5060 | * will be stored into the context1 field of the IOCB for the completion | |
5061 | * callback function to the RPS Accept Response ELS IOCB command. | |
5062 | * | |
5063 | **/ | |
5064 | static void | |
5065 | lpfc_els_rsp_rls_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) | |
5066 | { | |
5067 | MAILBOX_t *mb; | |
5068 | IOCB_t *icmd; | |
5069 | struct RLS_RSP *rls_rsp; | |
5070 | uint8_t *pcmd; | |
5071 | struct lpfc_iocbq *elsiocb; | |
5072 | struct lpfc_nodelist *ndlp; | |
7851fe2c JS |
5073 | uint16_t oxid; |
5074 | uint16_t rxid; | |
12265f68 JS |
5075 | uint32_t cmdsize; |
5076 | ||
5077 | mb = &pmb->u.mb; | |
5078 | ||
5079 | ndlp = (struct lpfc_nodelist *) pmb->context2; | |
7851fe2c JS |
5080 | rxid = (uint16_t) ((unsigned long)(pmb->context1) & 0xffff); |
5081 | oxid = (uint16_t) (((unsigned long)(pmb->context1) >> 16) & 0xffff); | |
12265f68 JS |
5082 | pmb->context1 = NULL; |
5083 | pmb->context2 = NULL; | |
5084 | ||
5085 | if (mb->mbxStatus) { | |
5086 | mempool_free(pmb, phba->mbox_mem_pool); | |
5087 | return; | |
5088 | } | |
5089 | ||
5090 | cmdsize = sizeof(struct RLS_RSP) + sizeof(uint32_t); | |
5091 | mempool_free(pmb, phba->mbox_mem_pool); | |
5092 | elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, | |
5093 | lpfc_max_els_tries, ndlp, | |
5094 | ndlp->nlp_DID, ELS_CMD_ACC); | |
5095 | ||
5096 | /* Decrement the ndlp reference count from previous mbox command */ | |
5097 | lpfc_nlp_put(ndlp); | |
5098 | ||
5099 | if (!elsiocb) | |
5100 | return; | |
5101 | ||
5102 | icmd = &elsiocb->iocb; | |
7851fe2c JS |
5103 | icmd->ulpContext = rxid; |
5104 | icmd->unsli3.rcvsli3.ox_id = oxid; | |
12265f68 JS |
5105 | |
5106 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
5107 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
5108 | pcmd += sizeof(uint32_t); /* Skip past command */ | |
5109 | rls_rsp = (struct RLS_RSP *)pcmd; | |
5110 | ||
5111 | rls_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt); | |
5112 | rls_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt); | |
5113 | rls_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt); | |
5114 | rls_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt); | |
5115 | rls_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord); | |
5116 | rls_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt); | |
5117 | ||
5118 | /* Xmit ELS RLS ACC response tag <ulpIoTag> */ | |
5119 | lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS, | |
5120 | "2874 Xmit ELS RLS ACC response tag x%x xri x%x, " | |
5121 | "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n", | |
5122 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
5123 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
5124 | ndlp->nlp_rpi); | |
5125 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; | |
5126 | phba->fc_stat.elsXmitACC++; | |
5127 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR) | |
5128 | lpfc_els_free_iocb(phba, elsiocb); | |
5129 | } | |
5130 | ||
e59058c4 | 5131 | /** |
3621a710 | 5132 | * lpfc_els_rsp_rps_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd |
e59058c4 JS |
5133 | * @phba: pointer to lpfc hba data structure. |
5134 | * @pmb: pointer to the driver internal queue element for mailbox command. | |
5135 | * | |
5136 | * This routine is the completion callback function for the MBX_READ_LNK_STAT | |
5137 | * mailbox command. This callback function is to actually send the Accept | |
5138 | * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It | |
5139 | * collects the link statistics from the completion of the MBX_READ_LNK_STAT | |
5140 | * mailbox command, constructs the RPS response with the link statistics | |
5141 | * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC | |
5142 | * response to the RPS. | |
5143 | * | |
5144 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
5145 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
5146 | * will be stored into the context1 field of the IOCB for the completion | |
5147 | * callback function to the RPS Accept Response ELS IOCB command. | |
5148 | * | |
5149 | **/ | |
082c0266 | 5150 | static void |
329f9bc7 | 5151 | lpfc_els_rsp_rps_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) |
7bb3b137 | 5152 | { |
7bb3b137 JW |
5153 | MAILBOX_t *mb; |
5154 | IOCB_t *icmd; | |
5155 | RPS_RSP *rps_rsp; | |
5156 | uint8_t *pcmd; | |
5157 | struct lpfc_iocbq *elsiocb; | |
5158 | struct lpfc_nodelist *ndlp; | |
7851fe2c JS |
5159 | uint16_t status; |
5160 | uint16_t oxid; | |
5161 | uint16_t rxid; | |
7bb3b137 JW |
5162 | uint32_t cmdsize; |
5163 | ||
04c68496 | 5164 | mb = &pmb->u.mb; |
7bb3b137 JW |
5165 | |
5166 | ndlp = (struct lpfc_nodelist *) pmb->context2; | |
7851fe2c JS |
5167 | rxid = (uint16_t) ((unsigned long)(pmb->context1) & 0xffff); |
5168 | oxid = (uint16_t) (((unsigned long)(pmb->context1) >> 16) & 0xffff); | |
041976fb RD |
5169 | pmb->context1 = NULL; |
5170 | pmb->context2 = NULL; | |
7bb3b137 JW |
5171 | |
5172 | if (mb->mbxStatus) { | |
329f9bc7 | 5173 | mempool_free(pmb, phba->mbox_mem_pool); |
7bb3b137 JW |
5174 | return; |
5175 | } | |
5176 | ||
5177 | cmdsize = sizeof(RPS_RSP) + sizeof(uint32_t); | |
329f9bc7 | 5178 | mempool_free(pmb, phba->mbox_mem_pool); |
2e0fef85 JS |
5179 | elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, |
5180 | lpfc_max_els_tries, ndlp, | |
5181 | ndlp->nlp_DID, ELS_CMD_ACC); | |
fa4066b6 JS |
5182 | |
5183 | /* Decrement the ndlp reference count from previous mbox command */ | |
329f9bc7 | 5184 | lpfc_nlp_put(ndlp); |
fa4066b6 | 5185 | |
c9f8735b | 5186 | if (!elsiocb) |
7bb3b137 | 5187 | return; |
7bb3b137 JW |
5188 | |
5189 | icmd = &elsiocb->iocb; | |
7851fe2c JS |
5190 | icmd->ulpContext = rxid; |
5191 | icmd->unsli3.rcvsli3.ox_id = oxid; | |
7bb3b137 JW |
5192 | |
5193 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
5194 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 | 5195 | pcmd += sizeof(uint32_t); /* Skip past command */ |
7bb3b137 JW |
5196 | rps_rsp = (RPS_RSP *)pcmd; |
5197 | ||
76a95d75 | 5198 | if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) |
7bb3b137 JW |
5199 | status = 0x10; |
5200 | else | |
5201 | status = 0x8; | |
2e0fef85 | 5202 | if (phba->pport->fc_flag & FC_FABRIC) |
7bb3b137 JW |
5203 | status |= 0x4; |
5204 | ||
5205 | rps_rsp->rsvd1 = 0; | |
09372820 JS |
5206 | rps_rsp->portStatus = cpu_to_be16(status); |
5207 | rps_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt); | |
5208 | rps_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt); | |
5209 | rps_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt); | |
5210 | rps_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt); | |
5211 | rps_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord); | |
5212 | rps_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt); | |
7bb3b137 | 5213 | /* Xmit ELS RPS ACC response tag <ulpIoTag> */ |
e8b62011 JS |
5214 | lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS, |
5215 | "0118 Xmit ELS RPS ACC response tag x%x xri x%x, " | |
5216 | "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n", | |
5217 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
5218 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
5219 | ndlp->nlp_rpi); | |
858c9f6c | 5220 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
7bb3b137 | 5221 | phba->fc_stat.elsXmitACC++; |
3772a991 | 5222 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR) |
7bb3b137 | 5223 | lpfc_els_free_iocb(phba, elsiocb); |
7bb3b137 JW |
5224 | return; |
5225 | } | |
5226 | ||
e59058c4 | 5227 | /** |
12265f68 JS |
5228 | * lpfc_els_rcv_rls - Process an unsolicited rls iocb |
5229 | * @vport: pointer to a host virtual N_Port data structure. | |
5230 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5231 | * @ndlp: pointer to a node-list data structure. | |
5232 | * | |
5233 | * This routine processes Read Port Status (RPL) IOCB received as an | |
5234 | * ELS unsolicited event. It first checks the remote port state. If the | |
5235 | * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE | |
5236 | * state, it invokes the lpfc_els_rsl_reject() routine to send the reject | |
5237 | * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command | |
5238 | * for reading the HBA link statistics. It is for the callback function, | |
5239 | * lpfc_els_rsp_rls_acc(), set to the MBX_READ_LNK_STAT mailbox command | |
5240 | * to actually sending out RPL Accept (ACC) response. | |
5241 | * | |
5242 | * Return codes | |
5243 | * 0 - Successfully processed rls iocb (currently always return 0) | |
5244 | **/ | |
5245 | static int | |
5246 | lpfc_els_rcv_rls(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, | |
5247 | struct lpfc_nodelist *ndlp) | |
5248 | { | |
5249 | struct lpfc_hba *phba = vport->phba; | |
5250 | LPFC_MBOXQ_t *mbox; | |
5251 | struct lpfc_dmabuf *pcmd; | |
5252 | struct ls_rjt stat; | |
5253 | ||
5254 | if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && | |
5255 | (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) | |
5256 | /* reject the unsolicited RPS request and done with it */ | |
5257 | goto reject_out; | |
5258 | ||
5259 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
5260 | ||
5261 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC); | |
5262 | if (mbox) { | |
5263 | lpfc_read_lnk_stat(phba, mbox); | |
7851fe2c JS |
5264 | mbox->context1 = (void *)((unsigned long) |
5265 | ((cmdiocb->iocb.unsli3.rcvsli3.ox_id << 16) | | |
5266 | cmdiocb->iocb.ulpContext)); /* rx_id */ | |
12265f68 JS |
5267 | mbox->context2 = lpfc_nlp_get(ndlp); |
5268 | mbox->vport = vport; | |
5269 | mbox->mbox_cmpl = lpfc_els_rsp_rls_acc; | |
5270 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) | |
5271 | != MBX_NOT_FINISHED) | |
5272 | /* Mbox completion will send ELS Response */ | |
5273 | return 0; | |
5274 | /* Decrement reference count used for the failed mbox | |
5275 | * command. | |
5276 | */ | |
5277 | lpfc_nlp_put(ndlp); | |
5278 | mempool_free(mbox, phba->mbox_mem_pool); | |
5279 | } | |
5280 | reject_out: | |
5281 | /* issue rejection response */ | |
5282 | stat.un.b.lsRjtRsvd0 = 0; | |
5283 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
5284 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
5285 | stat.un.b.vendorUnique = 0; | |
5286 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); | |
5287 | return 0; | |
5288 | } | |
5289 | ||
5290 | /** | |
5291 | * lpfc_els_rcv_rtv - Process an unsolicited rtv iocb | |
5292 | * @vport: pointer to a host virtual N_Port data structure. | |
5293 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5294 | * @ndlp: pointer to a node-list data structure. | |
5295 | * | |
5296 | * This routine processes Read Timout Value (RTV) IOCB received as an | |
5297 | * ELS unsolicited event. It first checks the remote port state. If the | |
5298 | * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE | |
5299 | * state, it invokes the lpfc_els_rsl_reject() routine to send the reject | |
5300 | * response. Otherwise, it sends the Accept(ACC) response to a Read Timeout | |
5301 | * Value (RTV) unsolicited IOCB event. | |
5302 | * | |
5303 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
5304 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
5305 | * will be stored into the context1 field of the IOCB for the completion | |
5306 | * callback function to the RPS Accept Response ELS IOCB command. | |
5307 | * | |
5308 | * Return codes | |
5309 | * 0 - Successfully processed rtv iocb (currently always return 0) | |
5310 | **/ | |
5311 | static int | |
5312 | lpfc_els_rcv_rtv(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, | |
5313 | struct lpfc_nodelist *ndlp) | |
5314 | { | |
5315 | struct lpfc_hba *phba = vport->phba; | |
5316 | struct ls_rjt stat; | |
5317 | struct RTV_RSP *rtv_rsp; | |
5318 | uint8_t *pcmd; | |
5319 | struct lpfc_iocbq *elsiocb; | |
5320 | uint32_t cmdsize; | |
5321 | ||
5322 | ||
5323 | if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && | |
5324 | (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) | |
5325 | /* reject the unsolicited RPS request and done with it */ | |
5326 | goto reject_out; | |
5327 | ||
5328 | cmdsize = sizeof(struct RTV_RSP) + sizeof(uint32_t); | |
5329 | elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, | |
5330 | lpfc_max_els_tries, ndlp, | |
5331 | ndlp->nlp_DID, ELS_CMD_ACC); | |
5332 | ||
5333 | if (!elsiocb) | |
5334 | return 1; | |
5335 | ||
5336 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
5337 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
5338 | pcmd += sizeof(uint32_t); /* Skip past command */ | |
5339 | ||
5340 | /* use the command's xri in the response */ | |
7851fe2c JS |
5341 | elsiocb->iocb.ulpContext = cmdiocb->iocb.ulpContext; /* Xri / rx_id */ |
5342 | elsiocb->iocb.unsli3.rcvsli3.ox_id = cmdiocb->iocb.unsli3.rcvsli3.ox_id; | |
12265f68 JS |
5343 | |
5344 | rtv_rsp = (struct RTV_RSP *)pcmd; | |
5345 | ||
5346 | /* populate RTV payload */ | |
5347 | rtv_rsp->ratov = cpu_to_be32(phba->fc_ratov * 1000); /* report msecs */ | |
5348 | rtv_rsp->edtov = cpu_to_be32(phba->fc_edtov); | |
5349 | bf_set(qtov_edtovres, rtv_rsp, phba->fc_edtovResol ? 1 : 0); | |
5350 | bf_set(qtov_rttov, rtv_rsp, 0); /* Field is for FC ONLY */ | |
5351 | rtv_rsp->qtov = cpu_to_be32(rtv_rsp->qtov); | |
5352 | ||
5353 | /* Xmit ELS RLS ACC response tag <ulpIoTag> */ | |
5354 | lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS, | |
5355 | "2875 Xmit ELS RTV ACC response tag x%x xri x%x, " | |
5356 | "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x, " | |
5357 | "Data: x%x x%x x%x\n", | |
5358 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
5359 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
5360 | ndlp->nlp_rpi, | |
5361 | rtv_rsp->ratov, rtv_rsp->edtov, rtv_rsp->qtov); | |
5362 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; | |
5363 | phba->fc_stat.elsXmitACC++; | |
5364 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR) | |
5365 | lpfc_els_free_iocb(phba, elsiocb); | |
5366 | return 0; | |
5367 | ||
5368 | reject_out: | |
5369 | /* issue rejection response */ | |
5370 | stat.un.b.lsRjtRsvd0 = 0; | |
5371 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
5372 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
5373 | stat.un.b.vendorUnique = 0; | |
5374 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); | |
5375 | return 0; | |
5376 | } | |
5377 | ||
5378 | /* lpfc_els_rcv_rps - Process an unsolicited rps iocb | |
e59058c4 JS |
5379 | * @vport: pointer to a host virtual N_Port data structure. |
5380 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5381 | * @ndlp: pointer to a node-list data structure. | |
5382 | * | |
5383 | * This routine processes Read Port Status (RPS) IOCB received as an | |
5384 | * ELS unsolicited event. It first checks the remote port state. If the | |
5385 | * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE | |
5386 | * state, it invokes the lpfc_els_rsp_reject() routine to send the reject | |
5387 | * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command | |
5388 | * for reading the HBA link statistics. It is for the callback function, | |
5389 | * lpfc_els_rsp_rps_acc(), set to the MBX_READ_LNK_STAT mailbox command | |
5390 | * to actually sending out RPS Accept (ACC) response. | |
5391 | * | |
5392 | * Return codes | |
5393 | * 0 - Successfully processed rps iocb (currently always return 0) | |
5394 | **/ | |
7bb3b137 | 5395 | static int |
2e0fef85 JS |
5396 | lpfc_els_rcv_rps(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
5397 | struct lpfc_nodelist *ndlp) | |
dea3101e | 5398 | { |
2e0fef85 | 5399 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 5400 | uint32_t *lp; |
7bb3b137 JW |
5401 | uint8_t flag; |
5402 | LPFC_MBOXQ_t *mbox; | |
5403 | struct lpfc_dmabuf *pcmd; | |
5404 | RPS *rps; | |
5405 | struct ls_rjt stat; | |
5406 | ||
2fe165b6 | 5407 | if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && |
90160e01 JS |
5408 | (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) |
5409 | /* reject the unsolicited RPS request and done with it */ | |
5410 | goto reject_out; | |
7bb3b137 JW |
5411 | |
5412 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
5413 | lp = (uint32_t *) pcmd->virt; | |
5414 | flag = (be32_to_cpu(*lp++) & 0xf); | |
5415 | rps = (RPS *) lp; | |
5416 | ||
5417 | if ((flag == 0) || | |
5418 | ((flag == 1) && (be32_to_cpu(rps->un.portNum) == 0)) || | |
2e0fef85 | 5419 | ((flag == 2) && (memcmp(&rps->un.portName, &vport->fc_portname, |
92d7f7b0 | 5420 | sizeof(struct lpfc_name)) == 0))) { |
2e0fef85 | 5421 | |
92d7f7b0 JS |
5422 | printk("Fix me....\n"); |
5423 | dump_stack(); | |
2e0fef85 JS |
5424 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC); |
5425 | if (mbox) { | |
7bb3b137 | 5426 | lpfc_read_lnk_stat(phba, mbox); |
7851fe2c JS |
5427 | mbox->context1 = (void *)((unsigned long) |
5428 | ((cmdiocb->iocb.unsli3.rcvsli3.ox_id << 16) | | |
5429 | cmdiocb->iocb.ulpContext)); /* rx_id */ | |
329f9bc7 | 5430 | mbox->context2 = lpfc_nlp_get(ndlp); |
92d7f7b0 | 5431 | mbox->vport = vport; |
7bb3b137 | 5432 | mbox->mbox_cmpl = lpfc_els_rsp_rps_acc; |
fa4066b6 | 5433 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) |
0b727fea | 5434 | != MBX_NOT_FINISHED) |
7bb3b137 JW |
5435 | /* Mbox completion will send ELS Response */ |
5436 | return 0; | |
fa4066b6 JS |
5437 | /* Decrement reference count used for the failed mbox |
5438 | * command. | |
5439 | */ | |
329f9bc7 | 5440 | lpfc_nlp_put(ndlp); |
7bb3b137 JW |
5441 | mempool_free(mbox, phba->mbox_mem_pool); |
5442 | } | |
5443 | } | |
90160e01 JS |
5444 | |
5445 | reject_out: | |
5446 | /* issue rejection response */ | |
7bb3b137 JW |
5447 | stat.un.b.lsRjtRsvd0 = 0; |
5448 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
5449 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
5450 | stat.un.b.vendorUnique = 0; | |
858c9f6c | 5451 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); |
7bb3b137 JW |
5452 | return 0; |
5453 | } | |
5454 | ||
19ca7609 JS |
5455 | /* lpfc_issue_els_rrq - Process an unsolicited rps iocb |
5456 | * @vport: pointer to a host virtual N_Port data structure. | |
5457 | * @ndlp: pointer to a node-list data structure. | |
5458 | * @did: DID of the target. | |
5459 | * @rrq: Pointer to the rrq struct. | |
5460 | * | |
5461 | * Build a ELS RRQ command and send it to the target. If the issue_iocb is | |
5462 | * Successful the the completion handler will clear the RRQ. | |
5463 | * | |
5464 | * Return codes | |
5465 | * 0 - Successfully sent rrq els iocb. | |
5466 | * 1 - Failed to send rrq els iocb. | |
5467 | **/ | |
5468 | static int | |
5469 | lpfc_issue_els_rrq(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, | |
5470 | uint32_t did, struct lpfc_node_rrq *rrq) | |
5471 | { | |
5472 | struct lpfc_hba *phba = vport->phba; | |
5473 | struct RRQ *els_rrq; | |
5474 | IOCB_t *icmd; | |
5475 | struct lpfc_iocbq *elsiocb; | |
5476 | uint8_t *pcmd; | |
5477 | uint16_t cmdsize; | |
5478 | int ret; | |
5479 | ||
5480 | ||
5481 | if (ndlp != rrq->ndlp) | |
5482 | ndlp = rrq->ndlp; | |
5483 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) | |
5484 | return 1; | |
5485 | ||
5486 | /* If ndlp is not NULL, we will bump the reference count on it */ | |
5487 | cmdsize = (sizeof(uint32_t) + sizeof(struct RRQ)); | |
5488 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, did, | |
5489 | ELS_CMD_RRQ); | |
5490 | if (!elsiocb) | |
5491 | return 1; | |
5492 | ||
5493 | icmd = &elsiocb->iocb; | |
5494 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
5495 | ||
5496 | /* For RRQ request, remainder of payload is Exchange IDs */ | |
5497 | *((uint32_t *) (pcmd)) = ELS_CMD_RRQ; | |
5498 | pcmd += sizeof(uint32_t); | |
5499 | els_rrq = (struct RRQ *) pcmd; | |
5500 | ||
5501 | bf_set(rrq_oxid, els_rrq, rrq->xritag); | |
5502 | bf_set(rrq_rxid, els_rrq, rrq->rxid); | |
5503 | bf_set(rrq_did, els_rrq, vport->fc_myDID); | |
5504 | els_rrq->rrq = cpu_to_be32(els_rrq->rrq); | |
5505 | els_rrq->rrq_exchg = cpu_to_be32(els_rrq->rrq_exchg); | |
5506 | ||
5507 | ||
5508 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, | |
5509 | "Issue RRQ: did:x%x", | |
5510 | did, rrq->xritag, rrq->rxid); | |
5511 | elsiocb->context_un.rrq = rrq; | |
5512 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rrq; | |
5513 | ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); | |
5514 | ||
5515 | if (ret == IOCB_ERROR) { | |
5516 | lpfc_els_free_iocb(phba, elsiocb); | |
5517 | return 1; | |
5518 | } | |
5519 | return 0; | |
5520 | } | |
5521 | ||
5522 | /** | |
5523 | * lpfc_send_rrq - Sends ELS RRQ if needed. | |
5524 | * @phba: pointer to lpfc hba data structure. | |
5525 | * @rrq: pointer to the active rrq. | |
5526 | * | |
5527 | * This routine will call the lpfc_issue_els_rrq if the rrq is | |
5528 | * still active for the xri. If this function returns a failure then | |
5529 | * the caller needs to clean up the RRQ by calling lpfc_clr_active_rrq. | |
5530 | * | |
5531 | * Returns 0 Success. | |
5532 | * 1 Failure. | |
5533 | **/ | |
5534 | int | |
5535 | lpfc_send_rrq(struct lpfc_hba *phba, struct lpfc_node_rrq *rrq) | |
5536 | { | |
5537 | struct lpfc_nodelist *ndlp = lpfc_findnode_did(rrq->vport, | |
5538 | rrq->nlp_DID); | |
5539 | if (lpfc_test_rrq_active(phba, ndlp, rrq->xritag)) | |
5540 | return lpfc_issue_els_rrq(rrq->vport, ndlp, | |
5541 | rrq->nlp_DID, rrq); | |
5542 | else | |
5543 | return 1; | |
5544 | } | |
5545 | ||
e59058c4 | 5546 | /** |
3621a710 | 5547 | * lpfc_els_rsp_rpl_acc - Issue an accept rpl els command |
e59058c4 JS |
5548 | * @vport: pointer to a host virtual N_Port data structure. |
5549 | * @cmdsize: size of the ELS command. | |
5550 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
5551 | * @ndlp: pointer to a node-list data structure. | |
5552 | * | |
5553 | * This routine issuees an Accept (ACC) Read Port List (RPL) ELS command. | |
5554 | * It is to be called by the lpfc_els_rcv_rpl() routine to accept the RPL. | |
5555 | * | |
5556 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
5557 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
5558 | * will be stored into the context1 field of the IOCB for the completion | |
5559 | * callback function to the RPL Accept Response ELS command. | |
5560 | * | |
5561 | * Return code | |
5562 | * 0 - Successfully issued ACC RPL ELS command | |
5563 | * 1 - Failed to issue ACC RPL ELS command | |
5564 | **/ | |
082c0266 | 5565 | static int |
2e0fef85 JS |
5566 | lpfc_els_rsp_rpl_acc(struct lpfc_vport *vport, uint16_t cmdsize, |
5567 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) | |
7bb3b137 | 5568 | { |
2e0fef85 JS |
5569 | struct lpfc_hba *phba = vport->phba; |
5570 | IOCB_t *icmd, *oldcmd; | |
7bb3b137 JW |
5571 | RPL_RSP rpl_rsp; |
5572 | struct lpfc_iocbq *elsiocb; | |
7bb3b137 | 5573 | uint8_t *pcmd; |
dea3101e | 5574 | |
2e0fef85 JS |
5575 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
5576 | ndlp->nlp_DID, ELS_CMD_ACC); | |
7bb3b137 | 5577 | |
488d1469 | 5578 | if (!elsiocb) |
7bb3b137 | 5579 | return 1; |
488d1469 | 5580 | |
7bb3b137 JW |
5581 | icmd = &elsiocb->iocb; |
5582 | oldcmd = &oldiocb->iocb; | |
7851fe2c JS |
5583 | icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ |
5584 | icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id; | |
7bb3b137 JW |
5585 | |
5586 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
5587 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 | 5588 | pcmd += sizeof(uint16_t); |
7bb3b137 JW |
5589 | *((uint16_t *)(pcmd)) = be16_to_cpu(cmdsize); |
5590 | pcmd += sizeof(uint16_t); | |
5591 | ||
5592 | /* Setup the RPL ACC payload */ | |
5593 | rpl_rsp.listLen = be32_to_cpu(1); | |
5594 | rpl_rsp.index = 0; | |
5595 | rpl_rsp.port_num_blk.portNum = 0; | |
2e0fef85 JS |
5596 | rpl_rsp.port_num_blk.portID = be32_to_cpu(vport->fc_myDID); |
5597 | memcpy(&rpl_rsp.port_num_blk.portName, &vport->fc_portname, | |
7bb3b137 | 5598 | sizeof(struct lpfc_name)); |
7bb3b137 | 5599 | memcpy(pcmd, &rpl_rsp, cmdsize - sizeof(uint32_t)); |
7bb3b137 | 5600 | /* Xmit ELS RPL ACC response tag <ulpIoTag> */ |
e8b62011 JS |
5601 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
5602 | "0120 Xmit ELS RPL ACC response tag x%x " | |
5603 | "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, " | |
5604 | "rpi x%x\n", | |
5605 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
5606 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
5607 | ndlp->nlp_rpi); | |
858c9f6c | 5608 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
7bb3b137 | 5609 | phba->fc_stat.elsXmitACC++; |
3772a991 JS |
5610 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
5611 | IOCB_ERROR) { | |
7bb3b137 JW |
5612 | lpfc_els_free_iocb(phba, elsiocb); |
5613 | return 1; | |
5614 | } | |
5615 | return 0; | |
5616 | } | |
5617 | ||
e59058c4 | 5618 | /** |
3621a710 | 5619 | * lpfc_els_rcv_rpl - Process an unsolicited rpl iocb |
e59058c4 JS |
5620 | * @vport: pointer to a host virtual N_Port data structure. |
5621 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5622 | * @ndlp: pointer to a node-list data structure. | |
5623 | * | |
5624 | * This routine processes Read Port List (RPL) IOCB received as an ELS | |
5625 | * unsolicited event. It first checks the remote port state. If the remote | |
5626 | * port is not in NLP_STE_UNMAPPED_NODE and NLP_STE_MAPPED_NODE states, it | |
5627 | * invokes the lpfc_els_rsp_reject() routine to send reject response. | |
5628 | * Otherwise, this routine then invokes the lpfc_els_rsp_rpl_acc() routine | |
5629 | * to accept the RPL. | |
5630 | * | |
5631 | * Return code | |
5632 | * 0 - Successfully processed rpl iocb (currently always return 0) | |
5633 | **/ | |
7bb3b137 | 5634 | static int |
2e0fef85 JS |
5635 | lpfc_els_rcv_rpl(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
5636 | struct lpfc_nodelist *ndlp) | |
7bb3b137 JW |
5637 | { |
5638 | struct lpfc_dmabuf *pcmd; | |
5639 | uint32_t *lp; | |
5640 | uint32_t maxsize; | |
5641 | uint16_t cmdsize; | |
5642 | RPL *rpl; | |
5643 | struct ls_rjt stat; | |
5644 | ||
2fe165b6 JW |
5645 | if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && |
5646 | (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) { | |
90160e01 | 5647 | /* issue rejection response */ |
7bb3b137 JW |
5648 | stat.un.b.lsRjtRsvd0 = 0; |
5649 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
5650 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
5651 | stat.un.b.vendorUnique = 0; | |
858c9f6c JS |
5652 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, |
5653 | NULL); | |
90160e01 JS |
5654 | /* rejected the unsolicited RPL request and done with it */ |
5655 | return 0; | |
7bb3b137 JW |
5656 | } |
5657 | ||
dea3101e JB |
5658 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; |
5659 | lp = (uint32_t *) pcmd->virt; | |
7bb3b137 | 5660 | rpl = (RPL *) (lp + 1); |
7bb3b137 | 5661 | maxsize = be32_to_cpu(rpl->maxsize); |
dea3101e | 5662 | |
7bb3b137 JW |
5663 | /* We support only one port */ |
5664 | if ((rpl->index == 0) && | |
5665 | ((maxsize == 0) || | |
5666 | ((maxsize * sizeof(uint32_t)) >= sizeof(RPL_RSP)))) { | |
5667 | cmdsize = sizeof(uint32_t) + sizeof(RPL_RSP); | |
2fe165b6 | 5668 | } else { |
7bb3b137 JW |
5669 | cmdsize = sizeof(uint32_t) + maxsize * sizeof(uint32_t); |
5670 | } | |
2e0fef85 | 5671 | lpfc_els_rsp_rpl_acc(vport, cmdsize, cmdiocb, ndlp); |
dea3101e JB |
5672 | |
5673 | return 0; | |
5674 | } | |
5675 | ||
e59058c4 | 5676 | /** |
3621a710 | 5677 | * lpfc_els_rcv_farp - Process an unsolicited farp request els command |
e59058c4 JS |
5678 | * @vport: pointer to a virtual N_Port data structure. |
5679 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5680 | * @ndlp: pointer to a node-list data structure. | |
5681 | * | |
5682 | * This routine processes Fibre Channel Address Resolution Protocol | |
5683 | * (FARP) Request IOCB received as an ELS unsolicited event. Currently, | |
5684 | * the lpfc driver only supports matching on WWPN or WWNN for FARP. As such, | |
5685 | * FARP_MATCH_PORT flag and FARP_MATCH_NODE flag are checked against the | |
5686 | * Match Flag in the FARP request IOCB: if FARP_MATCH_PORT flag is set, the | |
5687 | * remote PortName is compared against the FC PortName stored in the @vport | |
5688 | * data structure; if FARP_MATCH_NODE flag is set, the remote NodeName is | |
5689 | * compared against the FC NodeName stored in the @vport data structure. | |
5690 | * If any of these matches and the FARP_REQUEST_FARPR flag is set in the | |
5691 | * FARP request IOCB Response Flag, the lpfc_issue_els_farpr() routine is | |
5692 | * invoked to send out FARP Response to the remote node. Before sending the | |
5693 | * FARP Response, however, the FARP_REQUEST_PLOGI flag is check in the FARP | |
5694 | * request IOCB Response Flag and, if it is set, the lpfc_issue_els_plogi() | |
5695 | * routine is invoked to log into the remote port first. | |
5696 | * | |
5697 | * Return code | |
5698 | * 0 - Either the FARP Match Mode not supported or successfully processed | |
5699 | **/ | |
dea3101e | 5700 | static int |
2e0fef85 JS |
5701 | lpfc_els_rcv_farp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
5702 | struct lpfc_nodelist *ndlp) | |
dea3101e JB |
5703 | { |
5704 | struct lpfc_dmabuf *pcmd; | |
5705 | uint32_t *lp; | |
5706 | IOCB_t *icmd; | |
5707 | FARP *fp; | |
5708 | uint32_t cmd, cnt, did; | |
5709 | ||
5710 | icmd = &cmdiocb->iocb; | |
5711 | did = icmd->un.elsreq64.remoteID; | |
5712 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
5713 | lp = (uint32_t *) pcmd->virt; | |
5714 | ||
5715 | cmd = *lp++; | |
5716 | fp = (FARP *) lp; | |
dea3101e | 5717 | /* FARP-REQ received from DID <did> */ |
e8b62011 JS |
5718 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
5719 | "0601 FARP-REQ received from DID x%x\n", did); | |
dea3101e JB |
5720 | /* We will only support match on WWPN or WWNN */ |
5721 | if (fp->Mflags & ~(FARP_MATCH_NODE | FARP_MATCH_PORT)) { | |
c9f8735b | 5722 | return 0; |
dea3101e JB |
5723 | } |
5724 | ||
5725 | cnt = 0; | |
5726 | /* If this FARP command is searching for my portname */ | |
5727 | if (fp->Mflags & FARP_MATCH_PORT) { | |
2e0fef85 | 5728 | if (memcmp(&fp->RportName, &vport->fc_portname, |
92d7f7b0 | 5729 | sizeof(struct lpfc_name)) == 0) |
dea3101e JB |
5730 | cnt = 1; |
5731 | } | |
5732 | ||
5733 | /* If this FARP command is searching for my nodename */ | |
5734 | if (fp->Mflags & FARP_MATCH_NODE) { | |
2e0fef85 | 5735 | if (memcmp(&fp->RnodeName, &vport->fc_nodename, |
92d7f7b0 | 5736 | sizeof(struct lpfc_name)) == 0) |
dea3101e JB |
5737 | cnt = 1; |
5738 | } | |
5739 | ||
5740 | if (cnt) { | |
5741 | if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) || | |
5742 | (ndlp->nlp_state == NLP_STE_MAPPED_NODE)) { | |
5743 | /* Log back into the node before sending the FARP. */ | |
5744 | if (fp->Rflags & FARP_REQUEST_PLOGI) { | |
5024ab17 | 5745 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 5746 | lpfc_nlp_set_state(vport, ndlp, |
de0c5b32 | 5747 | NLP_STE_PLOGI_ISSUE); |
2e0fef85 | 5748 | lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); |
dea3101e JB |
5749 | } |
5750 | ||
5751 | /* Send a FARP response to that node */ | |
2e0fef85 JS |
5752 | if (fp->Rflags & FARP_REQUEST_FARPR) |
5753 | lpfc_issue_els_farpr(vport, did, 0); | |
dea3101e JB |
5754 | } |
5755 | } | |
c9f8735b | 5756 | return 0; |
dea3101e JB |
5757 | } |
5758 | ||
e59058c4 | 5759 | /** |
3621a710 | 5760 | * lpfc_els_rcv_farpr - Process an unsolicited farp response iocb |
e59058c4 JS |
5761 | * @vport: pointer to a host virtual N_Port data structure. |
5762 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5763 | * @ndlp: pointer to a node-list data structure. | |
5764 | * | |
5765 | * This routine processes Fibre Channel Address Resolution Protocol | |
5766 | * Response (FARPR) IOCB received as an ELS unsolicited event. It simply | |
5767 | * invokes the lpfc_els_rsp_acc() routine to the remote node to accept | |
5768 | * the FARP response request. | |
5769 | * | |
5770 | * Return code | |
5771 | * 0 - Successfully processed FARPR IOCB (currently always return 0) | |
5772 | **/ | |
dea3101e | 5773 | static int |
2e0fef85 JS |
5774 | lpfc_els_rcv_farpr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
5775 | struct lpfc_nodelist *ndlp) | |
dea3101e JB |
5776 | { |
5777 | struct lpfc_dmabuf *pcmd; | |
5778 | uint32_t *lp; | |
5779 | IOCB_t *icmd; | |
5780 | uint32_t cmd, did; | |
5781 | ||
5782 | icmd = &cmdiocb->iocb; | |
5783 | did = icmd->un.elsreq64.remoteID; | |
5784 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
5785 | lp = (uint32_t *) pcmd->virt; | |
5786 | ||
5787 | cmd = *lp++; | |
5788 | /* FARP-RSP received from DID <did> */ | |
e8b62011 JS |
5789 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
5790 | "0600 FARP-RSP received from DID x%x\n", did); | |
dea3101e | 5791 | /* ACCEPT the Farp resp request */ |
51ef4c26 | 5792 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
dea3101e JB |
5793 | |
5794 | return 0; | |
5795 | } | |
5796 | ||
e59058c4 | 5797 | /** |
3621a710 | 5798 | * lpfc_els_rcv_fan - Process an unsolicited fan iocb command |
e59058c4 JS |
5799 | * @vport: pointer to a host virtual N_Port data structure. |
5800 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5801 | * @fan_ndlp: pointer to a node-list data structure. | |
5802 | * | |
5803 | * This routine processes a Fabric Address Notification (FAN) IOCB | |
5804 | * command received as an ELS unsolicited event. The FAN ELS command will | |
5805 | * only be processed on a physical port (i.e., the @vport represents the | |
5806 | * physical port). The fabric NodeName and PortName from the FAN IOCB are | |
5807 | * compared against those in the phba data structure. If any of those is | |
5808 | * different, the lpfc_initial_flogi() routine is invoked to initialize | |
5809 | * Fabric Login (FLOGI) to the fabric to start the discover over. Otherwise, | |
5810 | * if both of those are identical, the lpfc_issue_fabric_reglogin() routine | |
5811 | * is invoked to register login to the fabric. | |
5812 | * | |
5813 | * Return code | |
5814 | * 0 - Successfully processed fan iocb (currently always return 0). | |
5815 | **/ | |
dea3101e | 5816 | static int |
2e0fef85 JS |
5817 | lpfc_els_rcv_fan(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
5818 | struct lpfc_nodelist *fan_ndlp) | |
dea3101e | 5819 | { |
0d2b6b83 | 5820 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 5821 | uint32_t *lp; |
5024ab17 | 5822 | FAN *fp; |
dea3101e | 5823 | |
0d2b6b83 JS |
5824 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0265 FAN received\n"); |
5825 | lp = (uint32_t *)((struct lpfc_dmabuf *)cmdiocb->context2)->virt; | |
5826 | fp = (FAN *) ++lp; | |
5024ab17 | 5827 | /* FAN received; Fan does not have a reply sequence */ |
0d2b6b83 JS |
5828 | if ((vport == phba->pport) && |
5829 | (vport->port_state == LPFC_LOCAL_CFG_LINK)) { | |
5024ab17 | 5830 | if ((memcmp(&phba->fc_fabparam.nodeName, &fp->FnodeName, |
0d2b6b83 | 5831 | sizeof(struct lpfc_name))) || |
5024ab17 | 5832 | (memcmp(&phba->fc_fabparam.portName, &fp->FportName, |
0d2b6b83 JS |
5833 | sizeof(struct lpfc_name)))) { |
5834 | /* This port has switched fabrics. FLOGI is required */ | |
76a95d75 | 5835 | lpfc_issue_init_vfi(vport); |
0d2b6b83 JS |
5836 | } else { |
5837 | /* FAN verified - skip FLOGI */ | |
5838 | vport->fc_myDID = vport->fc_prevDID; | |
6fb120a7 JS |
5839 | if (phba->sli_rev < LPFC_SLI_REV4) |
5840 | lpfc_issue_fabric_reglogin(vport); | |
5841 | else | |
5842 | lpfc_issue_reg_vfi(vport); | |
5024ab17 | 5843 | } |
dea3101e | 5844 | } |
c9f8735b | 5845 | return 0; |
dea3101e JB |
5846 | } |
5847 | ||
e59058c4 | 5848 | /** |
3621a710 | 5849 | * lpfc_els_timeout - Handler funciton to the els timer |
e59058c4 JS |
5850 | * @ptr: holder for the timer function associated data. |
5851 | * | |
5852 | * This routine is invoked by the ELS timer after timeout. It posts the ELS | |
5853 | * timer timeout event by setting the WORKER_ELS_TMO bit to the work port | |
5854 | * event bitmap and then invokes the lpfc_worker_wake_up() routine to wake | |
5855 | * up the worker thread. It is for the worker thread to invoke the routine | |
5856 | * lpfc_els_timeout_handler() to work on the posted event WORKER_ELS_TMO. | |
5857 | **/ | |
dea3101e JB |
5858 | void |
5859 | lpfc_els_timeout(unsigned long ptr) | |
5860 | { | |
2e0fef85 JS |
5861 | struct lpfc_vport *vport = (struct lpfc_vport *) ptr; |
5862 | struct lpfc_hba *phba = vport->phba; | |
5e9d9b82 | 5863 | uint32_t tmo_posted; |
dea3101e JB |
5864 | unsigned long iflag; |
5865 | ||
2e0fef85 | 5866 | spin_lock_irqsave(&vport->work_port_lock, iflag); |
5e9d9b82 JS |
5867 | tmo_posted = vport->work_port_events & WORKER_ELS_TMO; |
5868 | if (!tmo_posted) | |
2e0fef85 | 5869 | vport->work_port_events |= WORKER_ELS_TMO; |
5e9d9b82 | 5870 | spin_unlock_irqrestore(&vport->work_port_lock, iflag); |
92d7f7b0 | 5871 | |
5e9d9b82 JS |
5872 | if (!tmo_posted) |
5873 | lpfc_worker_wake_up(phba); | |
dea3101e JB |
5874 | return; |
5875 | } | |
5876 | ||
2a9bf3d0 | 5877 | |
e59058c4 | 5878 | /** |
3621a710 | 5879 | * lpfc_els_timeout_handler - Process an els timeout event |
e59058c4 JS |
5880 | * @vport: pointer to a virtual N_Port data structure. |
5881 | * | |
5882 | * This routine is the actual handler function that processes an ELS timeout | |
5883 | * event. It walks the ELS ring to get and abort all the IOCBs (except the | |
5884 | * ABORT/CLOSE/FARP/FARPR/FDISC), which are associated with the @vport by | |
5885 | * invoking the lpfc_sli_issue_abort_iotag() routine. | |
5886 | **/ | |
dea3101e | 5887 | void |
2e0fef85 | 5888 | lpfc_els_timeout_handler(struct lpfc_vport *vport) |
dea3101e | 5889 | { |
2e0fef85 | 5890 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
5891 | struct lpfc_sli_ring *pring; |
5892 | struct lpfc_iocbq *tmp_iocb, *piocb; | |
5893 | IOCB_t *cmd = NULL; | |
5894 | struct lpfc_dmabuf *pcmd; | |
2e0fef85 | 5895 | uint32_t els_command = 0; |
dea3101e | 5896 | uint32_t timeout; |
2e0fef85 | 5897 | uint32_t remote_ID = 0xffffffff; |
2a9bf3d0 JS |
5898 | LIST_HEAD(txcmplq_completions); |
5899 | LIST_HEAD(abort_list); | |
5900 | ||
dea3101e | 5901 | |
dea3101e JB |
5902 | timeout = (uint32_t)(phba->fc_ratov << 1); |
5903 | ||
5904 | pring = &phba->sli.ring[LPFC_ELS_RING]; | |
dea3101e | 5905 | |
2a9bf3d0 JS |
5906 | spin_lock_irq(&phba->hbalock); |
5907 | list_splice_init(&pring->txcmplq, &txcmplq_completions); | |
5908 | spin_unlock_irq(&phba->hbalock); | |
5909 | ||
5910 | list_for_each_entry_safe(piocb, tmp_iocb, &txcmplq_completions, list) { | |
dea3101e JB |
5911 | cmd = &piocb->iocb; |
5912 | ||
2e0fef85 JS |
5913 | if ((piocb->iocb_flag & LPFC_IO_LIBDFC) != 0 || |
5914 | piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN || | |
5915 | piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN) | |
dea3101e | 5916 | continue; |
2e0fef85 JS |
5917 | |
5918 | if (piocb->vport != vport) | |
5919 | continue; | |
5920 | ||
dea3101e | 5921 | pcmd = (struct lpfc_dmabuf *) piocb->context2; |
2e0fef85 JS |
5922 | if (pcmd) |
5923 | els_command = *(uint32_t *) (pcmd->virt); | |
dea3101e | 5924 | |
92d7f7b0 JS |
5925 | if (els_command == ELS_CMD_FARP || |
5926 | els_command == ELS_CMD_FARPR || | |
5927 | els_command == ELS_CMD_FDISC) | |
5928 | continue; | |
5929 | ||
dea3101e | 5930 | if (piocb->drvrTimeout > 0) { |
92d7f7b0 | 5931 | if (piocb->drvrTimeout >= timeout) |
dea3101e | 5932 | piocb->drvrTimeout -= timeout; |
92d7f7b0 | 5933 | else |
dea3101e | 5934 | piocb->drvrTimeout = 0; |
dea3101e JB |
5935 | continue; |
5936 | } | |
5937 | ||
2e0fef85 JS |
5938 | remote_ID = 0xffffffff; |
5939 | if (cmd->ulpCommand != CMD_GEN_REQUEST64_CR) | |
dea3101e | 5940 | remote_ID = cmd->un.elsreq64.remoteID; |
2e0fef85 JS |
5941 | else { |
5942 | struct lpfc_nodelist *ndlp; | |
5943 | ndlp = __lpfc_findnode_rpi(vport, cmd->ulpContext); | |
58da1ffb | 5944 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) |
2e0fef85 | 5945 | remote_ID = ndlp->nlp_DID; |
dea3101e | 5946 | } |
2a9bf3d0 JS |
5947 | list_add_tail(&piocb->dlist, &abort_list); |
5948 | } | |
5949 | spin_lock_irq(&phba->hbalock); | |
5950 | list_splice(&txcmplq_completions, &pring->txcmplq); | |
5951 | spin_unlock_irq(&phba->hbalock); | |
5952 | ||
5953 | list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) { | |
e8b62011 | 5954 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
2a9bf3d0 JS |
5955 | "0127 ELS timeout Data: x%x x%x x%x " |
5956 | "x%x\n", els_command, | |
5957 | remote_ID, cmd->ulpCommand, cmd->ulpIoTag); | |
5958 | spin_lock_irq(&phba->hbalock); | |
5959 | list_del_init(&piocb->dlist); | |
07951076 | 5960 | lpfc_sli_issue_abort_iotag(phba, pring, piocb); |
2a9bf3d0 | 5961 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 5962 | } |
5a0e326d | 5963 | |
2e0fef85 JS |
5964 | if (phba->sli.ring[LPFC_ELS_RING].txcmplq_cnt) |
5965 | mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout); | |
dea3101e JB |
5966 | } |
5967 | ||
e59058c4 | 5968 | /** |
3621a710 | 5969 | * lpfc_els_flush_cmd - Clean up the outstanding els commands to a vport |
e59058c4 JS |
5970 | * @vport: pointer to a host virtual N_Port data structure. |
5971 | * | |
5972 | * This routine is used to clean up all the outstanding ELS commands on a | |
5973 | * @vport. It first aborts the @vport by invoking lpfc_fabric_abort_vport() | |
5974 | * routine. After that, it walks the ELS transmit queue to remove all the | |
5975 | * IOCBs with the @vport other than the QUE_RING and ABORT/CLOSE IOCBs. For | |
5976 | * the IOCBs with a non-NULL completion callback function, the callback | |
5977 | * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and | |
5978 | * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs with a NULL completion | |
5979 | * callback function, the IOCB will simply be released. Finally, it walks | |
5980 | * the ELS transmit completion queue to issue an abort IOCB to any transmit | |
5981 | * completion queue IOCB that is associated with the @vport and is not | |
5982 | * an IOCB from libdfc (i.e., the management plane IOCBs that are not | |
5983 | * part of the discovery state machine) out to HBA by invoking the | |
5984 | * lpfc_sli_issue_abort_iotag() routine. Note that this function issues the | |
5985 | * abort IOCB to any transmit completion queueed IOCB, it does not guarantee | |
5986 | * the IOCBs are aborted when this function returns. | |
5987 | **/ | |
dea3101e | 5988 | void |
2e0fef85 | 5989 | lpfc_els_flush_cmd(struct lpfc_vport *vport) |
dea3101e | 5990 | { |
2534ba75 | 5991 | LIST_HEAD(completions); |
2e0fef85 | 5992 | struct lpfc_hba *phba = vport->phba; |
329f9bc7 | 5993 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; |
dea3101e JB |
5994 | struct lpfc_iocbq *tmp_iocb, *piocb; |
5995 | IOCB_t *cmd = NULL; | |
92d7f7b0 JS |
5996 | |
5997 | lpfc_fabric_abort_vport(vport); | |
dea3101e | 5998 | |
2e0fef85 | 5999 | spin_lock_irq(&phba->hbalock); |
dea3101e JB |
6000 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) { |
6001 | cmd = &piocb->iocb; | |
6002 | ||
6003 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) { | |
6004 | continue; | |
6005 | } | |
6006 | ||
6007 | /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */ | |
329f9bc7 JS |
6008 | if (cmd->ulpCommand == CMD_QUE_RING_BUF_CN || |
6009 | cmd->ulpCommand == CMD_QUE_RING_BUF64_CN || | |
6010 | cmd->ulpCommand == CMD_CLOSE_XRI_CN || | |
6011 | cmd->ulpCommand == CMD_ABORT_XRI_CN) | |
dea3101e | 6012 | continue; |
dea3101e | 6013 | |
2e0fef85 JS |
6014 | if (piocb->vport != vport) |
6015 | continue; | |
6016 | ||
2534ba75 | 6017 | list_move_tail(&piocb->list, &completions); |
1dcb58e5 | 6018 | pring->txq_cnt--; |
dea3101e JB |
6019 | } |
6020 | ||
6021 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { | |
dea3101e JB |
6022 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) { |
6023 | continue; | |
6024 | } | |
dea3101e | 6025 | |
2e0fef85 JS |
6026 | if (piocb->vport != vport) |
6027 | continue; | |
6028 | ||
07951076 | 6029 | lpfc_sli_issue_abort_iotag(phba, pring, piocb); |
dea3101e | 6030 | } |
2e0fef85 | 6031 | spin_unlock_irq(&phba->hbalock); |
2534ba75 | 6032 | |
a257bf90 JS |
6033 | /* Cancell all the IOCBs from the completions list */ |
6034 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
6035 | IOERR_SLI_ABORTED); | |
2534ba75 | 6036 | |
dea3101e JB |
6037 | return; |
6038 | } | |
6039 | ||
e59058c4 | 6040 | /** |
3621a710 | 6041 | * lpfc_els_flush_all_cmd - Clean up all the outstanding els commands to a HBA |
e59058c4 JS |
6042 | * @phba: pointer to lpfc hba data structure. |
6043 | * | |
6044 | * This routine is used to clean up all the outstanding ELS commands on a | |
6045 | * @phba. It first aborts the @phba by invoking the lpfc_fabric_abort_hba() | |
6046 | * routine. After that, it walks the ELS transmit queue to remove all the | |
6047 | * IOCBs to the @phba other than the QUE_RING and ABORT/CLOSE IOCBs. For | |
6048 | * the IOCBs with the completion callback function associated, the callback | |
6049 | * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and | |
6050 | * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs without the completion | |
6051 | * callback function associated, the IOCB will simply be released. Finally, | |
6052 | * it walks the ELS transmit completion queue to issue an abort IOCB to any | |
6053 | * transmit completion queue IOCB that is not an IOCB from libdfc (i.e., the | |
6054 | * management plane IOCBs that are not part of the discovery state machine) | |
6055 | * out to HBA by invoking the lpfc_sli_issue_abort_iotag() routine. | |
6056 | **/ | |
549e55cd JS |
6057 | void |
6058 | lpfc_els_flush_all_cmd(struct lpfc_hba *phba) | |
6059 | { | |
6060 | LIST_HEAD(completions); | |
6061 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; | |
6062 | struct lpfc_iocbq *tmp_iocb, *piocb; | |
6063 | IOCB_t *cmd = NULL; | |
6064 | ||
6065 | lpfc_fabric_abort_hba(phba); | |
6066 | spin_lock_irq(&phba->hbalock); | |
6067 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) { | |
6068 | cmd = &piocb->iocb; | |
6069 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) | |
6070 | continue; | |
6071 | /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */ | |
6072 | if (cmd->ulpCommand == CMD_QUE_RING_BUF_CN || | |
6073 | cmd->ulpCommand == CMD_QUE_RING_BUF64_CN || | |
6074 | cmd->ulpCommand == CMD_CLOSE_XRI_CN || | |
6075 | cmd->ulpCommand == CMD_ABORT_XRI_CN) | |
6076 | continue; | |
6077 | list_move_tail(&piocb->list, &completions); | |
6078 | pring->txq_cnt--; | |
6079 | } | |
6080 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { | |
6081 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) | |
6082 | continue; | |
6083 | lpfc_sli_issue_abort_iotag(phba, pring, piocb); | |
6084 | } | |
6085 | spin_unlock_irq(&phba->hbalock); | |
a257bf90 JS |
6086 | |
6087 | /* Cancel all the IOCBs from the completions list */ | |
6088 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
6089 | IOERR_SLI_ABORTED); | |
6090 | ||
549e55cd JS |
6091 | return; |
6092 | } | |
6093 | ||
ea2151b4 | 6094 | /** |
3621a710 | 6095 | * lpfc_send_els_failure_event - Posts an ELS command failure event |
ea2151b4 JS |
6096 | * @phba: Pointer to hba context object. |
6097 | * @cmdiocbp: Pointer to command iocb which reported error. | |
6098 | * @rspiocbp: Pointer to response iocb which reported error. | |
6099 | * | |
6100 | * This function sends an event when there is an ELS command | |
6101 | * failure. | |
6102 | **/ | |
6103 | void | |
6104 | lpfc_send_els_failure_event(struct lpfc_hba *phba, | |
6105 | struct lpfc_iocbq *cmdiocbp, | |
6106 | struct lpfc_iocbq *rspiocbp) | |
6107 | { | |
6108 | struct lpfc_vport *vport = cmdiocbp->vport; | |
6109 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
6110 | struct lpfc_lsrjt_event lsrjt_event; | |
6111 | struct lpfc_fabric_event_header fabric_event; | |
6112 | struct ls_rjt stat; | |
6113 | struct lpfc_nodelist *ndlp; | |
6114 | uint32_t *pcmd; | |
6115 | ||
6116 | ndlp = cmdiocbp->context1; | |
6117 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) | |
6118 | return; | |
6119 | ||
6120 | if (rspiocbp->iocb.ulpStatus == IOSTAT_LS_RJT) { | |
6121 | lsrjt_event.header.event_type = FC_REG_ELS_EVENT; | |
6122 | lsrjt_event.header.subcategory = LPFC_EVENT_LSRJT_RCV; | |
6123 | memcpy(lsrjt_event.header.wwpn, &ndlp->nlp_portname, | |
6124 | sizeof(struct lpfc_name)); | |
6125 | memcpy(lsrjt_event.header.wwnn, &ndlp->nlp_nodename, | |
6126 | sizeof(struct lpfc_name)); | |
6127 | pcmd = (uint32_t *) (((struct lpfc_dmabuf *) | |
6128 | cmdiocbp->context2)->virt); | |
49198b37 | 6129 | lsrjt_event.command = (pcmd != NULL) ? *pcmd : 0; |
ea2151b4 JS |
6130 | stat.un.lsRjtError = be32_to_cpu(rspiocbp->iocb.un.ulpWord[4]); |
6131 | lsrjt_event.reason_code = stat.un.b.lsRjtRsnCode; | |
6132 | lsrjt_event.explanation = stat.un.b.lsRjtRsnCodeExp; | |
6133 | fc_host_post_vendor_event(shost, | |
6134 | fc_get_event_number(), | |
6135 | sizeof(lsrjt_event), | |
6136 | (char *)&lsrjt_event, | |
ddcc50f0 | 6137 | LPFC_NL_VENDOR_ID); |
ea2151b4 JS |
6138 | return; |
6139 | } | |
6140 | if ((rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY) || | |
6141 | (rspiocbp->iocb.ulpStatus == IOSTAT_FABRIC_BSY)) { | |
6142 | fabric_event.event_type = FC_REG_FABRIC_EVENT; | |
6143 | if (rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY) | |
6144 | fabric_event.subcategory = LPFC_EVENT_PORT_BUSY; | |
6145 | else | |
6146 | fabric_event.subcategory = LPFC_EVENT_FABRIC_BUSY; | |
6147 | memcpy(fabric_event.wwpn, &ndlp->nlp_portname, | |
6148 | sizeof(struct lpfc_name)); | |
6149 | memcpy(fabric_event.wwnn, &ndlp->nlp_nodename, | |
6150 | sizeof(struct lpfc_name)); | |
6151 | fc_host_post_vendor_event(shost, | |
6152 | fc_get_event_number(), | |
6153 | sizeof(fabric_event), | |
6154 | (char *)&fabric_event, | |
ddcc50f0 | 6155 | LPFC_NL_VENDOR_ID); |
ea2151b4 JS |
6156 | return; |
6157 | } | |
6158 | ||
6159 | } | |
6160 | ||
6161 | /** | |
3621a710 | 6162 | * lpfc_send_els_event - Posts unsolicited els event |
ea2151b4 JS |
6163 | * @vport: Pointer to vport object. |
6164 | * @ndlp: Pointer FC node object. | |
6165 | * @cmd: ELS command code. | |
6166 | * | |
6167 | * This function posts an event when there is an incoming | |
6168 | * unsolicited ELS command. | |
6169 | **/ | |
6170 | static void | |
6171 | lpfc_send_els_event(struct lpfc_vport *vport, | |
6172 | struct lpfc_nodelist *ndlp, | |
ddcc50f0 | 6173 | uint32_t *payload) |
ea2151b4 | 6174 | { |
ddcc50f0 JS |
6175 | struct lpfc_els_event_header *els_data = NULL; |
6176 | struct lpfc_logo_event *logo_data = NULL; | |
ea2151b4 JS |
6177 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
6178 | ||
ddcc50f0 JS |
6179 | if (*payload == ELS_CMD_LOGO) { |
6180 | logo_data = kmalloc(sizeof(struct lpfc_logo_event), GFP_KERNEL); | |
6181 | if (!logo_data) { | |
6182 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
6183 | "0148 Failed to allocate memory " | |
6184 | "for LOGO event\n"); | |
6185 | return; | |
6186 | } | |
6187 | els_data = &logo_data->header; | |
6188 | } else { | |
6189 | els_data = kmalloc(sizeof(struct lpfc_els_event_header), | |
6190 | GFP_KERNEL); | |
6191 | if (!els_data) { | |
6192 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
6193 | "0149 Failed to allocate memory " | |
6194 | "for ELS event\n"); | |
6195 | return; | |
6196 | } | |
6197 | } | |
6198 | els_data->event_type = FC_REG_ELS_EVENT; | |
6199 | switch (*payload) { | |
ea2151b4 | 6200 | case ELS_CMD_PLOGI: |
ddcc50f0 | 6201 | els_data->subcategory = LPFC_EVENT_PLOGI_RCV; |
ea2151b4 JS |
6202 | break; |
6203 | case ELS_CMD_PRLO: | |
ddcc50f0 | 6204 | els_data->subcategory = LPFC_EVENT_PRLO_RCV; |
ea2151b4 JS |
6205 | break; |
6206 | case ELS_CMD_ADISC: | |
ddcc50f0 JS |
6207 | els_data->subcategory = LPFC_EVENT_ADISC_RCV; |
6208 | break; | |
6209 | case ELS_CMD_LOGO: | |
6210 | els_data->subcategory = LPFC_EVENT_LOGO_RCV; | |
6211 | /* Copy the WWPN in the LOGO payload */ | |
6212 | memcpy(logo_data->logo_wwpn, &payload[2], | |
6213 | sizeof(struct lpfc_name)); | |
ea2151b4 JS |
6214 | break; |
6215 | default: | |
e916141c | 6216 | kfree(els_data); |
ea2151b4 JS |
6217 | return; |
6218 | } | |
ddcc50f0 JS |
6219 | memcpy(els_data->wwpn, &ndlp->nlp_portname, sizeof(struct lpfc_name)); |
6220 | memcpy(els_data->wwnn, &ndlp->nlp_nodename, sizeof(struct lpfc_name)); | |
6221 | if (*payload == ELS_CMD_LOGO) { | |
6222 | fc_host_post_vendor_event(shost, | |
6223 | fc_get_event_number(), | |
6224 | sizeof(struct lpfc_logo_event), | |
6225 | (char *)logo_data, | |
6226 | LPFC_NL_VENDOR_ID); | |
6227 | kfree(logo_data); | |
6228 | } else { | |
6229 | fc_host_post_vendor_event(shost, | |
6230 | fc_get_event_number(), | |
6231 | sizeof(struct lpfc_els_event_header), | |
6232 | (char *)els_data, | |
6233 | LPFC_NL_VENDOR_ID); | |
6234 | kfree(els_data); | |
6235 | } | |
ea2151b4 JS |
6236 | |
6237 | return; | |
6238 | } | |
6239 | ||
6240 | ||
e59058c4 | 6241 | /** |
3621a710 | 6242 | * lpfc_els_unsol_buffer - Process an unsolicited event data buffer |
e59058c4 JS |
6243 | * @phba: pointer to lpfc hba data structure. |
6244 | * @pring: pointer to a SLI ring. | |
6245 | * @vport: pointer to a host virtual N_Port data structure. | |
6246 | * @elsiocb: pointer to lpfc els command iocb data structure. | |
6247 | * | |
6248 | * This routine is used for processing the IOCB associated with a unsolicited | |
6249 | * event. It first determines whether there is an existing ndlp that matches | |
6250 | * the DID from the unsolicited IOCB. If not, it will create a new one with | |
6251 | * the DID from the unsolicited IOCB. The ELS command from the unsolicited | |
6252 | * IOCB is then used to invoke the proper routine and to set up proper state | |
6253 | * of the discovery state machine. | |
6254 | **/ | |
ed957684 JS |
6255 | static void |
6256 | lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
92d7f7b0 | 6257 | struct lpfc_vport *vport, struct lpfc_iocbq *elsiocb) |
dea3101e | 6258 | { |
87af33fe | 6259 | struct Scsi_Host *shost; |
dea3101e | 6260 | struct lpfc_nodelist *ndlp; |
dea3101e | 6261 | struct ls_rjt stat; |
92d7f7b0 | 6262 | uint32_t *payload; |
2e0fef85 | 6263 | uint32_t cmd, did, newnode, rjt_err = 0; |
ed957684 | 6264 | IOCB_t *icmd = &elsiocb->iocb; |
dea3101e | 6265 | |
e47c9093 | 6266 | if (!vport || !(elsiocb->context2)) |
dea3101e | 6267 | goto dropit; |
2e0fef85 | 6268 | |
dea3101e | 6269 | newnode = 0; |
92d7f7b0 JS |
6270 | payload = ((struct lpfc_dmabuf *)elsiocb->context2)->virt; |
6271 | cmd = *payload; | |
ed957684 | 6272 | if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) == 0) |
495a714c | 6273 | lpfc_post_buffer(phba, pring, 1); |
dea3101e | 6274 | |
858c9f6c JS |
6275 | did = icmd->un.rcvels.remoteID; |
6276 | if (icmd->ulpStatus) { | |
6277 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, | |
6278 | "RCV Unsol ELS: status:x%x/x%x did:x%x", | |
6279 | icmd->ulpStatus, icmd->un.ulpWord[4], did); | |
dea3101e | 6280 | goto dropit; |
858c9f6c | 6281 | } |
dea3101e JB |
6282 | |
6283 | /* Check to see if link went down during discovery */ | |
ed957684 | 6284 | if (lpfc_els_chk_latt(vport)) |
dea3101e | 6285 | goto dropit; |
dea3101e | 6286 | |
c868595d | 6287 | /* Ignore traffic received during vport shutdown. */ |
92d7f7b0 JS |
6288 | if (vport->load_flag & FC_UNLOADING) |
6289 | goto dropit; | |
6290 | ||
92494144 JS |
6291 | /* If NPort discovery is delayed drop incoming ELS */ |
6292 | if ((vport->fc_flag & FC_DISC_DELAYED) && | |
6293 | (cmd != ELS_CMD_PLOGI)) | |
6294 | goto dropit; | |
6295 | ||
2e0fef85 | 6296 | ndlp = lpfc_findnode_did(vport, did); |
c9f8735b | 6297 | if (!ndlp) { |
dea3101e | 6298 | /* Cannot find existing Fabric ndlp, so allocate a new one */ |
c9f8735b | 6299 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); |
ed957684 | 6300 | if (!ndlp) |
dea3101e | 6301 | goto dropit; |
dea3101e | 6302 | |
2e0fef85 | 6303 | lpfc_nlp_init(vport, ndlp, did); |
98c9ea5c | 6304 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
dea3101e | 6305 | newnode = 1; |
e47c9093 | 6306 | if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) |
dea3101e | 6307 | ndlp->nlp_type |= NLP_FABRIC; |
58da1ffb JS |
6308 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { |
6309 | ndlp = lpfc_enable_node(vport, ndlp, | |
6310 | NLP_STE_UNUSED_NODE); | |
6311 | if (!ndlp) | |
6312 | goto dropit; | |
6313 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); | |
6314 | newnode = 1; | |
6315 | if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) | |
6316 | ndlp->nlp_type |= NLP_FABRIC; | |
6317 | } else if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) { | |
6318 | /* This is similar to the new node path */ | |
6319 | ndlp = lpfc_nlp_get(ndlp); | |
6320 | if (!ndlp) | |
6321 | goto dropit; | |
6322 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); | |
6323 | newnode = 1; | |
87af33fe | 6324 | } |
dea3101e JB |
6325 | |
6326 | phba->fc_stat.elsRcvFrame++; | |
e47c9093 | 6327 | |
329f9bc7 | 6328 | elsiocb->context1 = lpfc_nlp_get(ndlp); |
2e0fef85 | 6329 | elsiocb->vport = vport; |
dea3101e JB |
6330 | |
6331 | if ((cmd & ELS_CMD_MASK) == ELS_CMD_RSCN) { | |
6332 | cmd &= ELS_CMD_MASK; | |
6333 | } | |
6334 | /* ELS command <elsCmd> received from NPORT <did> */ | |
e8b62011 JS |
6335 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
6336 | "0112 ELS command x%x received from NPORT x%x " | |
6337 | "Data: x%x\n", cmd, did, vport->port_state); | |
dea3101e JB |
6338 | switch (cmd) { |
6339 | case ELS_CMD_PLOGI: | |
858c9f6c JS |
6340 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6341 | "RCV PLOGI: did:x%x/ste:x%x flg:x%x", | |
6342 | did, vport->port_state, ndlp->nlp_flag); | |
6343 | ||
dea3101e | 6344 | phba->fc_stat.elsRcvPLOGI++; |
858c9f6c JS |
6345 | ndlp = lpfc_plogi_confirm_nport(phba, payload, ndlp); |
6346 | ||
ddcc50f0 | 6347 | lpfc_send_els_event(vport, ndlp, payload); |
92494144 JS |
6348 | |
6349 | /* If Nport discovery is delayed, reject PLOGIs */ | |
6350 | if (vport->fc_flag & FC_DISC_DELAYED) { | |
6351 | rjt_err = LSRJT_UNABLE_TPC; | |
6352 | break; | |
6353 | } | |
858c9f6c | 6354 | if (vport->port_state < LPFC_DISC_AUTH) { |
1b32f6aa JS |
6355 | if (!(phba->pport->fc_flag & FC_PT2PT) || |
6356 | (phba->pport->fc_flag & FC_PT2PT_PLOGI)) { | |
6357 | rjt_err = LSRJT_UNABLE_TPC; | |
6358 | break; | |
6359 | } | |
6360 | /* We get here, and drop thru, if we are PT2PT with | |
6361 | * another NPort and the other side has initiated | |
6362 | * the PLOGI before responding to our FLOGI. | |
6363 | */ | |
dea3101e | 6364 | } |
87af33fe JS |
6365 | |
6366 | shost = lpfc_shost_from_vport(vport); | |
6367 | spin_lock_irq(shost->host_lock); | |
6368 | ndlp->nlp_flag &= ~NLP_TARGET_REMOVE; | |
6369 | spin_unlock_irq(shost->host_lock); | |
6370 | ||
2e0fef85 JS |
6371 | lpfc_disc_state_machine(vport, ndlp, elsiocb, |
6372 | NLP_EVT_RCV_PLOGI); | |
858c9f6c | 6373 | |
dea3101e JB |
6374 | break; |
6375 | case ELS_CMD_FLOGI: | |
858c9f6c JS |
6376 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6377 | "RCV FLOGI: did:x%x/ste:x%x flg:x%x", | |
6378 | did, vport->port_state, ndlp->nlp_flag); | |
6379 | ||
dea3101e | 6380 | phba->fc_stat.elsRcvFLOGI++; |
51ef4c26 | 6381 | lpfc_els_rcv_flogi(vport, elsiocb, ndlp); |
87af33fe | 6382 | if (newnode) |
98c9ea5c | 6383 | lpfc_nlp_put(ndlp); |
dea3101e JB |
6384 | break; |
6385 | case ELS_CMD_LOGO: | |
858c9f6c JS |
6386 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6387 | "RCV LOGO: did:x%x/ste:x%x flg:x%x", | |
6388 | did, vport->port_state, ndlp->nlp_flag); | |
6389 | ||
dea3101e | 6390 | phba->fc_stat.elsRcvLOGO++; |
ddcc50f0 | 6391 | lpfc_send_els_event(vport, ndlp, payload); |
2e0fef85 | 6392 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 6393 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e JB |
6394 | break; |
6395 | } | |
2e0fef85 | 6396 | lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_LOGO); |
dea3101e JB |
6397 | break; |
6398 | case ELS_CMD_PRLO: | |
858c9f6c JS |
6399 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6400 | "RCV PRLO: did:x%x/ste:x%x flg:x%x", | |
6401 | did, vport->port_state, ndlp->nlp_flag); | |
6402 | ||
dea3101e | 6403 | phba->fc_stat.elsRcvPRLO++; |
ddcc50f0 | 6404 | lpfc_send_els_event(vport, ndlp, payload); |
2e0fef85 | 6405 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 6406 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e JB |
6407 | break; |
6408 | } | |
2e0fef85 | 6409 | lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLO); |
dea3101e JB |
6410 | break; |
6411 | case ELS_CMD_RSCN: | |
6412 | phba->fc_stat.elsRcvRSCN++; | |
51ef4c26 | 6413 | lpfc_els_rcv_rscn(vport, elsiocb, ndlp); |
87af33fe | 6414 | if (newnode) |
98c9ea5c | 6415 | lpfc_nlp_put(ndlp); |
dea3101e JB |
6416 | break; |
6417 | case ELS_CMD_ADISC: | |
858c9f6c JS |
6418 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6419 | "RCV ADISC: did:x%x/ste:x%x flg:x%x", | |
6420 | did, vport->port_state, ndlp->nlp_flag); | |
6421 | ||
ddcc50f0 | 6422 | lpfc_send_els_event(vport, ndlp, payload); |
dea3101e | 6423 | phba->fc_stat.elsRcvADISC++; |
2e0fef85 | 6424 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 6425 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e JB |
6426 | break; |
6427 | } | |
2e0fef85 JS |
6428 | lpfc_disc_state_machine(vport, ndlp, elsiocb, |
6429 | NLP_EVT_RCV_ADISC); | |
dea3101e JB |
6430 | break; |
6431 | case ELS_CMD_PDISC: | |
858c9f6c JS |
6432 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6433 | "RCV PDISC: did:x%x/ste:x%x flg:x%x", | |
6434 | did, vport->port_state, ndlp->nlp_flag); | |
6435 | ||
dea3101e | 6436 | phba->fc_stat.elsRcvPDISC++; |
2e0fef85 | 6437 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 6438 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e JB |
6439 | break; |
6440 | } | |
2e0fef85 JS |
6441 | lpfc_disc_state_machine(vport, ndlp, elsiocb, |
6442 | NLP_EVT_RCV_PDISC); | |
dea3101e JB |
6443 | break; |
6444 | case ELS_CMD_FARPR: | |
858c9f6c JS |
6445 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6446 | "RCV FARPR: did:x%x/ste:x%x flg:x%x", | |
6447 | did, vport->port_state, ndlp->nlp_flag); | |
6448 | ||
dea3101e | 6449 | phba->fc_stat.elsRcvFARPR++; |
2e0fef85 | 6450 | lpfc_els_rcv_farpr(vport, elsiocb, ndlp); |
dea3101e JB |
6451 | break; |
6452 | case ELS_CMD_FARP: | |
858c9f6c JS |
6453 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6454 | "RCV FARP: did:x%x/ste:x%x flg:x%x", | |
6455 | did, vport->port_state, ndlp->nlp_flag); | |
6456 | ||
dea3101e | 6457 | phba->fc_stat.elsRcvFARP++; |
2e0fef85 | 6458 | lpfc_els_rcv_farp(vport, elsiocb, ndlp); |
dea3101e JB |
6459 | break; |
6460 | case ELS_CMD_FAN: | |
858c9f6c JS |
6461 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6462 | "RCV FAN: did:x%x/ste:x%x flg:x%x", | |
6463 | did, vport->port_state, ndlp->nlp_flag); | |
6464 | ||
dea3101e | 6465 | phba->fc_stat.elsRcvFAN++; |
2e0fef85 | 6466 | lpfc_els_rcv_fan(vport, elsiocb, ndlp); |
dea3101e | 6467 | break; |
dea3101e | 6468 | case ELS_CMD_PRLI: |
858c9f6c JS |
6469 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6470 | "RCV PRLI: did:x%x/ste:x%x flg:x%x", | |
6471 | did, vport->port_state, ndlp->nlp_flag); | |
6472 | ||
dea3101e | 6473 | phba->fc_stat.elsRcvPRLI++; |
2e0fef85 | 6474 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 6475 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e JB |
6476 | break; |
6477 | } | |
2e0fef85 | 6478 | lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLI); |
dea3101e | 6479 | break; |
7bb3b137 | 6480 | case ELS_CMD_LIRR: |
858c9f6c JS |
6481 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6482 | "RCV LIRR: did:x%x/ste:x%x flg:x%x", | |
6483 | did, vport->port_state, ndlp->nlp_flag); | |
6484 | ||
7bb3b137 | 6485 | phba->fc_stat.elsRcvLIRR++; |
2e0fef85 | 6486 | lpfc_els_rcv_lirr(vport, elsiocb, ndlp); |
87af33fe | 6487 | if (newnode) |
98c9ea5c | 6488 | lpfc_nlp_put(ndlp); |
7bb3b137 | 6489 | break; |
12265f68 JS |
6490 | case ELS_CMD_RLS: |
6491 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, | |
6492 | "RCV RLS: did:x%x/ste:x%x flg:x%x", | |
6493 | did, vport->port_state, ndlp->nlp_flag); | |
6494 | ||
6495 | phba->fc_stat.elsRcvRLS++; | |
6496 | lpfc_els_rcv_rls(vport, elsiocb, ndlp); | |
6497 | if (newnode) | |
6498 | lpfc_nlp_put(ndlp); | |
6499 | break; | |
7bb3b137 | 6500 | case ELS_CMD_RPS: |
858c9f6c JS |
6501 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6502 | "RCV RPS: did:x%x/ste:x%x flg:x%x", | |
6503 | did, vport->port_state, ndlp->nlp_flag); | |
6504 | ||
7bb3b137 | 6505 | phba->fc_stat.elsRcvRPS++; |
2e0fef85 | 6506 | lpfc_els_rcv_rps(vport, elsiocb, ndlp); |
87af33fe | 6507 | if (newnode) |
98c9ea5c | 6508 | lpfc_nlp_put(ndlp); |
7bb3b137 JW |
6509 | break; |
6510 | case ELS_CMD_RPL: | |
858c9f6c JS |
6511 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6512 | "RCV RPL: did:x%x/ste:x%x flg:x%x", | |
6513 | did, vport->port_state, ndlp->nlp_flag); | |
6514 | ||
7bb3b137 | 6515 | phba->fc_stat.elsRcvRPL++; |
2e0fef85 | 6516 | lpfc_els_rcv_rpl(vport, elsiocb, ndlp); |
87af33fe | 6517 | if (newnode) |
98c9ea5c | 6518 | lpfc_nlp_put(ndlp); |
7bb3b137 | 6519 | break; |
dea3101e | 6520 | case ELS_CMD_RNID: |
858c9f6c JS |
6521 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6522 | "RCV RNID: did:x%x/ste:x%x flg:x%x", | |
6523 | did, vport->port_state, ndlp->nlp_flag); | |
6524 | ||
dea3101e | 6525 | phba->fc_stat.elsRcvRNID++; |
2e0fef85 | 6526 | lpfc_els_rcv_rnid(vport, elsiocb, ndlp); |
87af33fe | 6527 | if (newnode) |
98c9ea5c | 6528 | lpfc_nlp_put(ndlp); |
dea3101e | 6529 | break; |
12265f68 JS |
6530 | case ELS_CMD_RTV: |
6531 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, | |
6532 | "RCV RTV: did:x%x/ste:x%x flg:x%x", | |
6533 | did, vport->port_state, ndlp->nlp_flag); | |
6534 | phba->fc_stat.elsRcvRTV++; | |
6535 | lpfc_els_rcv_rtv(vport, elsiocb, ndlp); | |
6536 | if (newnode) | |
6537 | lpfc_nlp_put(ndlp); | |
6538 | break; | |
5ffc266e JS |
6539 | case ELS_CMD_RRQ: |
6540 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, | |
6541 | "RCV RRQ: did:x%x/ste:x%x flg:x%x", | |
6542 | did, vport->port_state, ndlp->nlp_flag); | |
6543 | ||
6544 | phba->fc_stat.elsRcvRRQ++; | |
6545 | lpfc_els_rcv_rrq(vport, elsiocb, ndlp); | |
6546 | if (newnode) | |
6547 | lpfc_nlp_put(ndlp); | |
6548 | break; | |
12265f68 JS |
6549 | case ELS_CMD_ECHO: |
6550 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, | |
6551 | "RCV ECHO: did:x%x/ste:x%x flg:x%x", | |
6552 | did, vport->port_state, ndlp->nlp_flag); | |
6553 | ||
6554 | phba->fc_stat.elsRcvECHO++; | |
6555 | lpfc_els_rcv_echo(vport, elsiocb, ndlp); | |
6556 | if (newnode) | |
6557 | lpfc_nlp_put(ndlp); | |
6558 | break; | |
dea3101e | 6559 | default: |
858c9f6c JS |
6560 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
6561 | "RCV ELS cmd: cmd:x%x did:x%x/ste:x%x", | |
6562 | cmd, did, vport->port_state); | |
6563 | ||
dea3101e | 6564 | /* Unsupported ELS command, reject */ |
63e801ce | 6565 | rjt_err = LSRJT_CMD_UNSUPPORTED; |
dea3101e JB |
6566 | |
6567 | /* Unknown ELS command <elsCmd> received from NPORT <did> */ | |
e8b62011 JS |
6568 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
6569 | "0115 Unknown ELS command x%x " | |
6570 | "received from NPORT x%x\n", cmd, did); | |
87af33fe | 6571 | if (newnode) |
98c9ea5c | 6572 | lpfc_nlp_put(ndlp); |
dea3101e JB |
6573 | break; |
6574 | } | |
6575 | ||
6576 | /* check if need to LS_RJT received ELS cmd */ | |
6577 | if (rjt_err) { | |
92d7f7b0 | 6578 | memset(&stat, 0, sizeof(stat)); |
858c9f6c | 6579 | stat.un.b.lsRjtRsnCode = rjt_err; |
1f679caf | 6580 | stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; |
858c9f6c JS |
6581 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, elsiocb, ndlp, |
6582 | NULL); | |
dea3101e JB |
6583 | } |
6584 | ||
d7c255b2 JS |
6585 | lpfc_nlp_put(elsiocb->context1); |
6586 | elsiocb->context1 = NULL; | |
ed957684 JS |
6587 | return; |
6588 | ||
6589 | dropit: | |
98c9ea5c | 6590 | if (vport && !(vport->load_flag & FC_UNLOADING)) |
6fb120a7 JS |
6591 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
6592 | "0111 Dropping received ELS cmd " | |
ed957684 | 6593 | "Data: x%x x%x x%x\n", |
6fb120a7 | 6594 | icmd->ulpStatus, icmd->un.ulpWord[4], icmd->ulpTimeout); |
ed957684 JS |
6595 | phba->fc_stat.elsRcvDrop++; |
6596 | } | |
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, | |
6d368e53 | 6642 | icmd->unsli3.rcvsli3.vpi); |
92d7f7b0 | 6643 | } |
6d368e53 | 6644 | |
7f5f3d0d JS |
6645 | /* If there are no BDEs associated |
6646 | * with this IOCB, there is nothing to do. | |
6647 | */ | |
ed957684 JS |
6648 | if (icmd->ulpBdeCount == 0) |
6649 | return; | |
6650 | ||
7f5f3d0d JS |
6651 | /* type of ELS cmd is first 32bit word |
6652 | * in packet | |
6653 | */ | |
ed957684 | 6654 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
92d7f7b0 | 6655 | elsiocb->context2 = bdeBuf1; |
ed957684 JS |
6656 | } else { |
6657 | paddr = getPaddr(icmd->un.cont64[0].addrHigh, | |
6658 | icmd->un.cont64[0].addrLow); | |
92d7f7b0 JS |
6659 | elsiocb->context2 = lpfc_sli_ringpostbuf_get(phba, pring, |
6660 | paddr); | |
ed957684 JS |
6661 | } |
6662 | ||
92d7f7b0 JS |
6663 | lpfc_els_unsol_buffer(phba, pring, vport, elsiocb); |
6664 | /* | |
6665 | * The different unsolicited event handlers would tell us | |
6666 | * if they are done with "mp" by setting context2 to NULL. | |
6667 | */ | |
dea3101e | 6668 | if (elsiocb->context2) { |
92d7f7b0 JS |
6669 | lpfc_in_buf_free(phba, (struct lpfc_dmabuf *)elsiocb->context2); |
6670 | elsiocb->context2 = NULL; | |
dea3101e | 6671 | } |
ed957684 JS |
6672 | |
6673 | /* RCV_ELS64_CX provide for 2 BDEs - process 2nd if included */ | |
92d7f7b0 | 6674 | if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) && |
ed957684 | 6675 | icmd->ulpBdeCount == 2) { |
92d7f7b0 JS |
6676 | elsiocb->context2 = bdeBuf2; |
6677 | lpfc_els_unsol_buffer(phba, pring, vport, elsiocb); | |
ed957684 JS |
6678 | /* free mp if we are done with it */ |
6679 | if (elsiocb->context2) { | |
92d7f7b0 JS |
6680 | lpfc_in_buf_free(phba, elsiocb->context2); |
6681 | elsiocb->context2 = NULL; | |
6682 | } | |
6683 | } | |
6684 | } | |
6685 | ||
e59058c4 | 6686 | /** |
3621a710 | 6687 | * lpfc_do_scr_ns_plogi - Issue a plogi to the name server for scr |
e59058c4 JS |
6688 | * @phba: pointer to lpfc hba data structure. |
6689 | * @vport: pointer to a virtual N_Port data structure. | |
6690 | * | |
6691 | * This routine issues a Port Login (PLOGI) to the Name Server with | |
6692 | * State Change Request (SCR) for a @vport. This routine will create an | |
6693 | * ndlp for the Name Server associated to the @vport if such node does | |
6694 | * not already exist. The PLOGI to Name Server is issued by invoking the | |
6695 | * lpfc_issue_els_plogi() routine. If Fabric-Device Management Interface | |
6696 | * (FDMI) is configured to the @vport, a FDMI node will be created and | |
6697 | * the PLOGI to FDMI is issued by invoking lpfc_issue_els_plogi() routine. | |
6698 | **/ | |
92d7f7b0 JS |
6699 | void |
6700 | lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport) | |
6701 | { | |
6702 | struct lpfc_nodelist *ndlp, *ndlp_fdmi; | |
92494144 JS |
6703 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
6704 | ||
6705 | /* | |
6706 | * If lpfc_delay_discovery parameter is set and the clean address | |
6707 | * bit is cleared and fc fabric parameters chenged, delay FC NPort | |
6708 | * discovery. | |
6709 | */ | |
6710 | spin_lock_irq(shost->host_lock); | |
6711 | if (vport->fc_flag & FC_DISC_DELAYED) { | |
6712 | spin_unlock_irq(shost->host_lock); | |
6713 | mod_timer(&vport->delayed_disc_tmo, | |
6714 | jiffies + HZ * phba->fc_ratov); | |
6715 | return; | |
6716 | } | |
6717 | spin_unlock_irq(shost->host_lock); | |
92d7f7b0 JS |
6718 | |
6719 | ndlp = lpfc_findnode_did(vport, NameServer_DID); | |
6720 | if (!ndlp) { | |
6721 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
6722 | if (!ndlp) { | |
76a95d75 | 6723 | if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { |
92d7f7b0 JS |
6724 | lpfc_disc_start(vport); |
6725 | return; | |
6726 | } | |
6727 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
e8b62011 JS |
6728 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
6729 | "0251 NameServer login: no memory\n"); | |
92d7f7b0 JS |
6730 | return; |
6731 | } | |
6732 | lpfc_nlp_init(vport, ndlp, NameServer_DID); | |
e47c9093 JS |
6733 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { |
6734 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
6735 | if (!ndlp) { | |
76a95d75 | 6736 | if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { |
e47c9093 JS |
6737 | lpfc_disc_start(vport); |
6738 | return; | |
6739 | } | |
6740 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
6741 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
6742 | "0348 NameServer login: node freed\n"); | |
6743 | return; | |
6744 | } | |
92d7f7b0 | 6745 | } |
58da1ffb | 6746 | ndlp->nlp_type |= NLP_FABRIC; |
92d7f7b0 JS |
6747 | |
6748 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); | |
6749 | ||
6750 | if (lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0)) { | |
6751 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
e8b62011 JS |
6752 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
6753 | "0252 Cannot issue NameServer login\n"); | |
92d7f7b0 JS |
6754 | return; |
6755 | } | |
6756 | ||
3de2a653 | 6757 | if (vport->cfg_fdmi_on) { |
63e801ce JS |
6758 | /* If this is the first time, allocate an ndlp and initialize |
6759 | * it. Otherwise, make sure the node is enabled and then do the | |
6760 | * login. | |
6761 | */ | |
6762 | ndlp_fdmi = lpfc_findnode_did(vport, FDMI_DID); | |
6763 | if (!ndlp_fdmi) { | |
6764 | ndlp_fdmi = mempool_alloc(phba->nlp_mem_pool, | |
6765 | GFP_KERNEL); | |
6766 | if (ndlp_fdmi) { | |
6767 | lpfc_nlp_init(vport, ndlp_fdmi, FDMI_DID); | |
6768 | ndlp_fdmi->nlp_type |= NLP_FABRIC; | |
6769 | } else | |
6770 | return; | |
6771 | } | |
6772 | if (!NLP_CHK_NODE_ACT(ndlp_fdmi)) | |
6773 | ndlp_fdmi = lpfc_enable_node(vport, | |
6774 | ndlp_fdmi, | |
6775 | NLP_STE_NPR_NODE); | |
6776 | ||
92d7f7b0 | 6777 | if (ndlp_fdmi) { |
58da1ffb | 6778 | lpfc_nlp_set_state(vport, ndlp_fdmi, |
63e801ce JS |
6779 | NLP_STE_PLOGI_ISSUE); |
6780 | lpfc_issue_els_plogi(vport, ndlp_fdmi->nlp_DID, 0); | |
92d7f7b0 JS |
6781 | } |
6782 | } | |
92d7f7b0 JS |
6783 | } |
6784 | ||
e59058c4 | 6785 | /** |
3621a710 | 6786 | * lpfc_cmpl_reg_new_vport - Completion callback function to register new vport |
e59058c4 JS |
6787 | * @phba: pointer to lpfc hba data structure. |
6788 | * @pmb: pointer to the driver internal queue element for mailbox command. | |
6789 | * | |
6790 | * This routine is the completion callback function to register new vport | |
6791 | * mailbox command. If the new vport mailbox command completes successfully, | |
6792 | * the fabric registration login shall be performed on physical port (the | |
6793 | * new vport created is actually a physical port, with VPI 0) or the port | |
6794 | * login to Name Server for State Change Request (SCR) will be performed | |
6795 | * on virtual port (real virtual port, with VPI greater than 0). | |
6796 | **/ | |
92d7f7b0 JS |
6797 | static void |
6798 | lpfc_cmpl_reg_new_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) | |
6799 | { | |
6800 | struct lpfc_vport *vport = pmb->vport; | |
6801 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
6802 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; | |
04c68496 | 6803 | MAILBOX_t *mb = &pmb->u.mb; |
695a814e | 6804 | int rc; |
92d7f7b0 | 6805 | |
09372820 | 6806 | spin_lock_irq(shost->host_lock); |
92d7f7b0 | 6807 | vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; |
09372820 | 6808 | spin_unlock_irq(shost->host_lock); |
92d7f7b0 JS |
6809 | |
6810 | if (mb->mbxStatus) { | |
e8b62011 | 6811 | lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, |
38b92ef8 JS |
6812 | "0915 Register VPI failed : Status: x%x" |
6813 | " upd bit: x%x \n", mb->mbxStatus, | |
6814 | mb->un.varRegVpi.upd); | |
6815 | if (phba->sli_rev == LPFC_SLI_REV4 && | |
6816 | mb->un.varRegVpi.upd) | |
6817 | goto mbox_err_exit ; | |
92d7f7b0 JS |
6818 | |
6819 | switch (mb->mbxStatus) { | |
6820 | case 0x11: /* unsupported feature */ | |
6821 | case 0x9603: /* max_vpi exceeded */ | |
7f5f3d0d | 6822 | case 0x9602: /* Link event since CLEAR_LA */ |
92d7f7b0 JS |
6823 | /* giving up on vport registration */ |
6824 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
6825 | spin_lock_irq(shost->host_lock); | |
6826 | vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
6827 | spin_unlock_irq(shost->host_lock); | |
6828 | lpfc_can_disctmo(vport); | |
6829 | break; | |
695a814e JS |
6830 | /* If reg_vpi fail with invalid VPI status, re-init VPI */ |
6831 | case 0x20: | |
6832 | spin_lock_irq(shost->host_lock); | |
6833 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; | |
6834 | spin_unlock_irq(shost->host_lock); | |
6835 | lpfc_init_vpi(phba, pmb, vport->vpi); | |
6836 | pmb->vport = vport; | |
6837 | pmb->mbox_cmpl = lpfc_init_vpi_cmpl; | |
6838 | rc = lpfc_sli_issue_mbox(phba, pmb, | |
6839 | MBX_NOWAIT); | |
6840 | if (rc == MBX_NOT_FINISHED) { | |
6841 | lpfc_printf_vlog(vport, | |
6842 | KERN_ERR, LOG_MBOX, | |
6843 | "2732 Failed to issue INIT_VPI" | |
6844 | " mailbox command\n"); | |
6845 | } else { | |
6846 | lpfc_nlp_put(ndlp); | |
6847 | return; | |
6848 | } | |
6849 | ||
92d7f7b0 JS |
6850 | default: |
6851 | /* Try to recover from this error */ | |
5af5eee7 JS |
6852 | if (phba->sli_rev == LPFC_SLI_REV4) |
6853 | lpfc_sli4_unreg_all_rpis(vport); | |
92d7f7b0 | 6854 | lpfc_mbx_unreg_vpi(vport); |
09372820 | 6855 | spin_lock_irq(shost->host_lock); |
92d7f7b0 | 6856 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; |
09372820 | 6857 | spin_unlock_irq(shost->host_lock); |
4b40c59e JS |
6858 | if (vport->port_type == LPFC_PHYSICAL_PORT |
6859 | && !(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) | |
76a95d75 | 6860 | lpfc_issue_init_vfi(vport); |
7f5f3d0d JS |
6861 | else |
6862 | lpfc_initial_fdisc(vport); | |
92d7f7b0 JS |
6863 | break; |
6864 | } | |
92d7f7b0 | 6865 | } else { |
695a814e | 6866 | spin_lock_irq(shost->host_lock); |
1987807d | 6867 | vport->vpi_state |= LPFC_VPI_REGISTERED; |
695a814e JS |
6868 | spin_unlock_irq(shost->host_lock); |
6869 | if (vport == phba->pport) { | |
6fb120a7 JS |
6870 | if (phba->sli_rev < LPFC_SLI_REV4) |
6871 | lpfc_issue_fabric_reglogin(vport); | |
695a814e | 6872 | else { |
fc2b989b JS |
6873 | /* |
6874 | * If the physical port is instantiated using | |
6875 | * FDISC, do not start vport discovery. | |
6876 | */ | |
6877 | if (vport->port_state != LPFC_FDISC) | |
6878 | lpfc_start_fdiscs(phba); | |
695a814e JS |
6879 | lpfc_do_scr_ns_plogi(phba, vport); |
6880 | } | |
6881 | } else | |
92d7f7b0 JS |
6882 | lpfc_do_scr_ns_plogi(phba, vport); |
6883 | } | |
38b92ef8 | 6884 | mbox_err_exit: |
fa4066b6 JS |
6885 | /* Now, we decrement the ndlp reference count held for this |
6886 | * callback function | |
6887 | */ | |
6888 | lpfc_nlp_put(ndlp); | |
6889 | ||
92d7f7b0 JS |
6890 | mempool_free(pmb, phba->mbox_mem_pool); |
6891 | return; | |
6892 | } | |
6893 | ||
e59058c4 | 6894 | /** |
3621a710 | 6895 | * lpfc_register_new_vport - Register a new vport with a HBA |
e59058c4 JS |
6896 | * @phba: pointer to lpfc hba data structure. |
6897 | * @vport: pointer to a host virtual N_Port data structure. | |
6898 | * @ndlp: pointer to a node-list data structure. | |
6899 | * | |
6900 | * This routine registers the @vport as a new virtual port with a HBA. | |
6901 | * It is done through a registering vpi mailbox command. | |
6902 | **/ | |
695a814e | 6903 | void |
92d7f7b0 JS |
6904 | lpfc_register_new_vport(struct lpfc_hba *phba, struct lpfc_vport *vport, |
6905 | struct lpfc_nodelist *ndlp) | |
6906 | { | |
09372820 | 6907 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
92d7f7b0 JS |
6908 | LPFC_MBOXQ_t *mbox; |
6909 | ||
6910 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
6911 | if (mbox) { | |
6fb120a7 | 6912 | lpfc_reg_vpi(vport, mbox); |
92d7f7b0 JS |
6913 | mbox->vport = vport; |
6914 | mbox->context2 = lpfc_nlp_get(ndlp); | |
6915 | mbox->mbox_cmpl = lpfc_cmpl_reg_new_vport; | |
0b727fea | 6916 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) |
92d7f7b0 | 6917 | == MBX_NOT_FINISHED) { |
fa4066b6 JS |
6918 | /* mailbox command not success, decrement ndlp |
6919 | * reference count for this command | |
6920 | */ | |
6921 | lpfc_nlp_put(ndlp); | |
92d7f7b0 | 6922 | mempool_free(mbox, phba->mbox_mem_pool); |
92d7f7b0 | 6923 | |
e8b62011 JS |
6924 | lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, |
6925 | "0253 Register VPI: Can't send mbox\n"); | |
fa4066b6 | 6926 | goto mbox_err_exit; |
92d7f7b0 JS |
6927 | } |
6928 | } else { | |
e8b62011 JS |
6929 | lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, |
6930 | "0254 Register VPI: no memory\n"); | |
fa4066b6 | 6931 | goto mbox_err_exit; |
92d7f7b0 | 6932 | } |
fa4066b6 JS |
6933 | return; |
6934 | ||
6935 | mbox_err_exit: | |
6936 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
6937 | spin_lock_irq(shost->host_lock); | |
6938 | vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; | |
6939 | spin_unlock_irq(shost->host_lock); | |
6940 | return; | |
92d7f7b0 JS |
6941 | } |
6942 | ||
695a814e | 6943 | /** |
0c9ab6f5 | 6944 | * lpfc_cancel_all_vport_retry_delay_timer - Cancel all vport retry delay timer |
695a814e JS |
6945 | * @phba: pointer to lpfc hba data structure. |
6946 | * | |
0c9ab6f5 | 6947 | * This routine cancels the retry delay timers to all the vports. |
695a814e JS |
6948 | **/ |
6949 | void | |
0c9ab6f5 | 6950 | lpfc_cancel_all_vport_retry_delay_timer(struct lpfc_hba *phba) |
695a814e JS |
6951 | { |
6952 | struct lpfc_vport **vports; | |
6953 | struct lpfc_nodelist *ndlp; | |
695a814e | 6954 | uint32_t link_state; |
0c9ab6f5 | 6955 | int i; |
695a814e JS |
6956 | |
6957 | /* Treat this failure as linkdown for all vports */ | |
6958 | link_state = phba->link_state; | |
6959 | lpfc_linkdown(phba); | |
6960 | phba->link_state = link_state; | |
6961 | ||
6962 | vports = lpfc_create_vport_work_array(phba); | |
6963 | ||
6964 | if (vports) { | |
6965 | for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { | |
6966 | ndlp = lpfc_findnode_did(vports[i], Fabric_DID); | |
6967 | if (ndlp) | |
6968 | lpfc_cancel_retry_delay_tmo(vports[i], ndlp); | |
6969 | lpfc_els_flush_cmd(vports[i]); | |
6970 | } | |
6971 | lpfc_destroy_vport_work_array(phba, vports); | |
6972 | } | |
0c9ab6f5 JS |
6973 | } |
6974 | ||
6975 | /** | |
6976 | * lpfc_retry_pport_discovery - Start timer to retry FLOGI. | |
6977 | * @phba: pointer to lpfc hba data structure. | |
6978 | * | |
6979 | * This routine abort all pending discovery commands and | |
6980 | * start a timer to retry FLOGI for the physical port | |
6981 | * discovery. | |
6982 | **/ | |
6983 | void | |
6984 | lpfc_retry_pport_discovery(struct lpfc_hba *phba) | |
6985 | { | |
6986 | struct lpfc_nodelist *ndlp; | |
6987 | struct Scsi_Host *shost; | |
6988 | ||
6989 | /* Cancel the all vports retry delay retry timers */ | |
6990 | lpfc_cancel_all_vport_retry_delay_timer(phba); | |
695a814e JS |
6991 | |
6992 | /* If fabric require FLOGI, then re-instantiate physical login */ | |
6993 | ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); | |
6994 | if (!ndlp) | |
6995 | return; | |
6996 | ||
695a814e JS |
6997 | shost = lpfc_shost_from_vport(phba->pport); |
6998 | mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ); | |
6999 | spin_lock_irq(shost->host_lock); | |
7000 | ndlp->nlp_flag |= NLP_DELAY_TMO; | |
7001 | spin_unlock_irq(shost->host_lock); | |
7002 | ndlp->nlp_last_elscmd = ELS_CMD_FLOGI; | |
7003 | phba->pport->port_state = LPFC_FLOGI; | |
7004 | return; | |
7005 | } | |
7006 | ||
7007 | /** | |
7008 | * lpfc_fabric_login_reqd - Check if FLOGI required. | |
7009 | * @phba: pointer to lpfc hba data structure. | |
7010 | * @cmdiocb: pointer to FDISC command iocb. | |
7011 | * @rspiocb: pointer to FDISC response iocb. | |
7012 | * | |
7013 | * This routine checks if a FLOGI is reguired for FDISC | |
7014 | * to succeed. | |
7015 | **/ | |
7016 | static int | |
7017 | lpfc_fabric_login_reqd(struct lpfc_hba *phba, | |
7018 | struct lpfc_iocbq *cmdiocb, | |
7019 | struct lpfc_iocbq *rspiocb) | |
7020 | { | |
7021 | ||
7022 | if ((rspiocb->iocb.ulpStatus != IOSTAT_FABRIC_RJT) || | |
7023 | (rspiocb->iocb.un.ulpWord[4] != RJT_LOGIN_REQUIRED)) | |
7024 | return 0; | |
7025 | else | |
7026 | return 1; | |
7027 | } | |
7028 | ||
e59058c4 | 7029 | /** |
3621a710 | 7030 | * lpfc_cmpl_els_fdisc - Completion function for fdisc iocb command |
e59058c4 JS |
7031 | * @phba: pointer to lpfc hba data structure. |
7032 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
7033 | * @rspiocb: pointer to lpfc response iocb data structure. | |
7034 | * | |
7035 | * This routine is the completion callback function to a Fabric Discover | |
7036 | * (FDISC) ELS command. Since all the FDISC ELS commands are issued | |
7037 | * single threaded, each FDISC completion callback function will reset | |
7038 | * the discovery timer for all vports such that the timers will not get | |
7039 | * unnecessary timeout. The function checks the FDISC IOCB status. If error | |
7040 | * detected, the vport will be set to FC_VPORT_FAILED state. Otherwise,the | |
7041 | * vport will set to FC_VPORT_ACTIVE state. It then checks whether the DID | |
7042 | * assigned to the vport has been changed with the completion of the FDISC | |
7043 | * command. If so, both RPI (Remote Port Index) and VPI (Virtual Port Index) | |
7044 | * are unregistered from the HBA, and then the lpfc_register_new_vport() | |
7045 | * routine is invoked to register new vport with the HBA. Otherwise, the | |
7046 | * lpfc_do_scr_ns_plogi() routine is invoked to issue a PLOGI to the Name | |
7047 | * Server for State Change Request (SCR). | |
7048 | **/ | |
92d7f7b0 JS |
7049 | static void |
7050 | lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
7051 | struct lpfc_iocbq *rspiocb) | |
7052 | { | |
7053 | struct lpfc_vport *vport = cmdiocb->vport; | |
7054 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
7055 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
7056 | struct lpfc_nodelist *np; | |
7057 | struct lpfc_nodelist *next_np; | |
7058 | IOCB_t *irsp = &rspiocb->iocb; | |
7059 | struct lpfc_iocbq *piocb; | |
92494144 JS |
7060 | struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp; |
7061 | struct serv_parm *sp; | |
7062 | uint8_t fabric_param_changed; | |
92d7f7b0 | 7063 | |
e8b62011 JS |
7064 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
7065 | "0123 FDISC completes. x%x/x%x prevDID: x%x\n", | |
7066 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
7067 | vport->fc_prevDID); | |
92d7f7b0 JS |
7068 | /* Since all FDISCs are being single threaded, we |
7069 | * must reset the discovery timer for ALL vports | |
7070 | * waiting to send FDISC when one completes. | |
7071 | */ | |
7072 | list_for_each_entry(piocb, &phba->fabric_iocb_list, list) { | |
7073 | lpfc_set_disctmo(piocb->vport); | |
7074 | } | |
7075 | ||
858c9f6c JS |
7076 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
7077 | "FDISC cmpl: status:x%x/x%x prevdid:x%x", | |
7078 | irsp->ulpStatus, irsp->un.ulpWord[4], vport->fc_prevDID); | |
7079 | ||
92d7f7b0 | 7080 | if (irsp->ulpStatus) { |
695a814e JS |
7081 | |
7082 | if (lpfc_fabric_login_reqd(phba, cmdiocb, rspiocb)) { | |
7083 | lpfc_retry_pport_discovery(phba); | |
7084 | goto out; | |
7085 | } | |
7086 | ||
92d7f7b0 JS |
7087 | /* Check for retry */ |
7088 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) | |
7089 | goto out; | |
92d7f7b0 | 7090 | /* FDISC failed */ |
e8b62011 | 7091 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
d7c255b2 | 7092 | "0126 FDISC failed. (%d/%d)\n", |
e8b62011 | 7093 | irsp->ulpStatus, irsp->un.ulpWord[4]); |
d7c255b2 JS |
7094 | goto fdisc_failed; |
7095 | } | |
d7c255b2 | 7096 | spin_lock_irq(shost->host_lock); |
695a814e | 7097 | vport->fc_flag &= ~FC_VPORT_CVL_RCVD; |
4b40c59e | 7098 | vport->fc_flag &= ~FC_VPORT_LOGO_RCVD; |
d7c255b2 | 7099 | vport->fc_flag |= FC_FABRIC; |
76a95d75 | 7100 | if (vport->phba->fc_topology == LPFC_TOPOLOGY_LOOP) |
d7c255b2 JS |
7101 | vport->fc_flag |= FC_PUBLIC_LOOP; |
7102 | spin_unlock_irq(shost->host_lock); | |
92d7f7b0 | 7103 | |
d7c255b2 JS |
7104 | vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID; |
7105 | lpfc_vport_set_state(vport, FC_VPORT_ACTIVE); | |
92494144 JS |
7106 | prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); |
7107 | sp = prsp->virt + sizeof(uint32_t); | |
7108 | fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp); | |
7109 | memcpy(&vport->fabric_portname, &sp->portName, | |
7110 | sizeof(struct lpfc_name)); | |
7111 | memcpy(&vport->fabric_nodename, &sp->nodeName, | |
7112 | sizeof(struct lpfc_name)); | |
7113 | if (fabric_param_changed && | |
d7c255b2 JS |
7114 | !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { |
7115 | /* If our NportID changed, we need to ensure all | |
7116 | * remaining NPORTs get unreg_login'ed so we can | |
7117 | * issue unreg_vpi. | |
7118 | */ | |
7119 | list_for_each_entry_safe(np, next_np, | |
7120 | &vport->fc_nodes, nlp_listp) { | |
7121 | if (!NLP_CHK_NODE_ACT(ndlp) || | |
7122 | (np->nlp_state != NLP_STE_NPR_NODE) || | |
7123 | !(np->nlp_flag & NLP_NPR_ADISC)) | |
7124 | continue; | |
09372820 | 7125 | spin_lock_irq(shost->host_lock); |
d7c255b2 | 7126 | np->nlp_flag &= ~NLP_NPR_ADISC; |
09372820 | 7127 | spin_unlock_irq(shost->host_lock); |
d7c255b2 | 7128 | lpfc_unreg_rpi(vport, np); |
92d7f7b0 | 7129 | } |
78730cfe | 7130 | lpfc_cleanup_pending_mbox(vport); |
5af5eee7 JS |
7131 | |
7132 | if (phba->sli_rev == LPFC_SLI_REV4) | |
7133 | lpfc_sli4_unreg_all_rpis(vport); | |
7134 | ||
d7c255b2 JS |
7135 | lpfc_mbx_unreg_vpi(vport); |
7136 | spin_lock_irq(shost->host_lock); | |
7137 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; | |
0f65ff68 JS |
7138 | if (phba->sli_rev == LPFC_SLI_REV4) |
7139 | vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; | |
4b40c59e JS |
7140 | else |
7141 | vport->fc_flag |= FC_LOGO_RCVD_DID_CHNG; | |
d7c255b2 | 7142 | spin_unlock_irq(shost->host_lock); |
38b92ef8 JS |
7143 | } else if ((phba->sli_rev == LPFC_SLI_REV4) && |
7144 | !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { | |
7145 | /* | |
7146 | * Driver needs to re-reg VPI in order for f/w | |
7147 | * to update the MAC address. | |
7148 | */ | |
7149 | lpfc_register_new_vport(phba, vport, ndlp); | |
5ac6b303 | 7150 | goto out; |
92d7f7b0 JS |
7151 | } |
7152 | ||
ecfd03c6 JS |
7153 | if (vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI) |
7154 | lpfc_issue_init_vpi(vport); | |
7155 | else if (vport->fc_flag & FC_VPORT_NEEDS_REG_VPI) | |
d7c255b2 JS |
7156 | lpfc_register_new_vport(phba, vport, ndlp); |
7157 | else | |
7158 | lpfc_do_scr_ns_plogi(phba, vport); | |
7159 | goto out; | |
7160 | fdisc_failed: | |
7161 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
7162 | /* Cancel discovery timer */ | |
7163 | lpfc_can_disctmo(vport); | |
7164 | lpfc_nlp_put(ndlp); | |
92d7f7b0 JS |
7165 | out: |
7166 | lpfc_els_free_iocb(phba, cmdiocb); | |
7167 | } | |
7168 | ||
e59058c4 | 7169 | /** |
3621a710 | 7170 | * lpfc_issue_els_fdisc - Issue a fdisc iocb command |
e59058c4 JS |
7171 | * @vport: pointer to a virtual N_Port data structure. |
7172 | * @ndlp: pointer to a node-list data structure. | |
7173 | * @retry: number of retries to the command IOCB. | |
7174 | * | |
7175 | * This routine prepares and issues a Fabric Discover (FDISC) IOCB to | |
7176 | * a remote node (@ndlp) off a @vport. It uses the lpfc_issue_fabric_iocb() | |
7177 | * routine to issue the IOCB, which makes sure only one outstanding fabric | |
7178 | * IOCB will be sent off HBA at any given time. | |
7179 | * | |
7180 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
7181 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
7182 | * will be stored into the context1 field of the IOCB for the completion | |
7183 | * callback function to the FDISC ELS command. | |
7184 | * | |
7185 | * Return code | |
7186 | * 0 - Successfully issued fdisc iocb command | |
7187 | * 1 - Failed to issue fdisc iocb command | |
7188 | **/ | |
a6ababd2 | 7189 | static int |
92d7f7b0 JS |
7190 | lpfc_issue_els_fdisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
7191 | uint8_t retry) | |
7192 | { | |
7193 | struct lpfc_hba *phba = vport->phba; | |
7194 | IOCB_t *icmd; | |
7195 | struct lpfc_iocbq *elsiocb; | |
7196 | struct serv_parm *sp; | |
7197 | uint8_t *pcmd; | |
7198 | uint16_t cmdsize; | |
7199 | int did = ndlp->nlp_DID; | |
7200 | int rc; | |
92d7f7b0 | 7201 | |
5ffc266e | 7202 | vport->port_state = LPFC_FDISC; |
92d7f7b0 JS |
7203 | cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); |
7204 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did, | |
7205 | ELS_CMD_FDISC); | |
7206 | if (!elsiocb) { | |
92d7f7b0 | 7207 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
e8b62011 JS |
7208 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
7209 | "0255 Issue FDISC: no IOCB\n"); | |
92d7f7b0 JS |
7210 | return 1; |
7211 | } | |
7212 | ||
7213 | icmd = &elsiocb->iocb; | |
7214 | icmd->un.elsreq64.myID = 0; | |
7215 | icmd->un.elsreq64.fl = 1; | |
7216 | ||
73d91e50 JS |
7217 | /* |
7218 | * SLI3 ports require a different context type value than SLI4. | |
7219 | * Catch SLI3 ports here and override the prep. | |
7220 | */ | |
7221 | if (phba->sli_rev == LPFC_SLI_REV3) { | |
f1126688 JS |
7222 | icmd->ulpCt_h = 1; |
7223 | icmd->ulpCt_l = 0; | |
7224 | } | |
92d7f7b0 JS |
7225 | |
7226 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
7227 | *((uint32_t *) (pcmd)) = ELS_CMD_FDISC; | |
7228 | pcmd += sizeof(uint32_t); /* CSP Word 1 */ | |
7229 | memcpy(pcmd, &vport->phba->pport->fc_sparam, sizeof(struct serv_parm)); | |
7230 | sp = (struct serv_parm *) pcmd; | |
7231 | /* Setup CSPs accordingly for Fabric */ | |
7232 | sp->cmn.e_d_tov = 0; | |
7233 | sp->cmn.w2.r_a_tov = 0; | |
7234 | sp->cls1.classValid = 0; | |
7235 | sp->cls2.seqDelivery = 1; | |
7236 | sp->cls3.seqDelivery = 1; | |
7237 | ||
7238 | pcmd += sizeof(uint32_t); /* CSP Word 2 */ | |
7239 | pcmd += sizeof(uint32_t); /* CSP Word 3 */ | |
7240 | pcmd += sizeof(uint32_t); /* CSP Word 4 */ | |
7241 | pcmd += sizeof(uint32_t); /* Port Name */ | |
7242 | memcpy(pcmd, &vport->fc_portname, 8); | |
7243 | pcmd += sizeof(uint32_t); /* Node Name */ | |
7244 | pcmd += sizeof(uint32_t); /* Node Name */ | |
7245 | memcpy(pcmd, &vport->fc_nodename, 8); | |
7246 | ||
7247 | lpfc_set_disctmo(vport); | |
7248 | ||
7249 | phba->fc_stat.elsXmitFDISC++; | |
7250 | elsiocb->iocb_cmpl = lpfc_cmpl_els_fdisc; | |
7251 | ||
858c9f6c JS |
7252 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
7253 | "Issue FDISC: did:x%x", | |
7254 | did, 0, 0); | |
7255 | ||
92d7f7b0 JS |
7256 | rc = lpfc_issue_fabric_iocb(phba, elsiocb); |
7257 | if (rc == IOCB_ERROR) { | |
7258 | lpfc_els_free_iocb(phba, elsiocb); | |
92d7f7b0 | 7259 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
e8b62011 JS |
7260 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
7261 | "0256 Issue FDISC: Cannot send IOCB\n"); | |
92d7f7b0 JS |
7262 | return 1; |
7263 | } | |
7264 | lpfc_vport_set_state(vport, FC_VPORT_INITIALIZING); | |
92d7f7b0 JS |
7265 | return 0; |
7266 | } | |
7267 | ||
e59058c4 | 7268 | /** |
3621a710 | 7269 | * lpfc_cmpl_els_npiv_logo - Completion function with vport logo |
e59058c4 JS |
7270 | * @phba: pointer to lpfc hba data structure. |
7271 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
7272 | * @rspiocb: pointer to lpfc response iocb data structure. | |
7273 | * | |
7274 | * This routine is the completion callback function to the issuing of a LOGO | |
7275 | * ELS command off a vport. It frees the command IOCB and then decrement the | |
7276 | * reference count held on ndlp for this completion function, indicating that | |
7277 | * the reference to the ndlp is no long needed. Note that the | |
7278 | * lpfc_els_free_iocb() routine decrements the ndlp reference held for this | |
7279 | * callback function and an additional explicit ndlp reference decrementation | |
7280 | * will trigger the actual release of the ndlp. | |
7281 | **/ | |
92d7f7b0 JS |
7282 | static void |
7283 | lpfc_cmpl_els_npiv_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
7284 | struct lpfc_iocbq *rspiocb) | |
7285 | { | |
7286 | struct lpfc_vport *vport = cmdiocb->vport; | |
858c9f6c | 7287 | IOCB_t *irsp; |
e47c9093 | 7288 | struct lpfc_nodelist *ndlp; |
9589b062 | 7289 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
858c9f6c | 7290 | |
9589b062 | 7291 | ndlp = (struct lpfc_nodelist *)cmdiocb->context1; |
858c9f6c JS |
7292 | irsp = &rspiocb->iocb; |
7293 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, | |
7294 | "LOGO npiv cmpl: status:x%x/x%x did:x%x", | |
7295 | irsp->ulpStatus, irsp->un.ulpWord[4], irsp->un.rcvels.remoteID); | |
92d7f7b0 JS |
7296 | |
7297 | lpfc_els_free_iocb(phba, cmdiocb); | |
7298 | vport->unreg_vpi_cmpl = VPORT_ERROR; | |
e47c9093 JS |
7299 | |
7300 | /* Trigger the release of the ndlp after logo */ | |
7301 | lpfc_nlp_put(ndlp); | |
9589b062 JS |
7302 | |
7303 | /* NPIV LOGO completes to NPort <nlp_DID> */ | |
7304 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
7305 | "2928 NPIV LOGO completes to NPort x%x " | |
7306 | "Data: x%x x%x x%x x%x\n", | |
7307 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
7308 | irsp->ulpTimeout, vport->num_disc_nodes); | |
7309 | ||
7310 | if (irsp->ulpStatus == IOSTAT_SUCCESS) { | |
7311 | spin_lock_irq(shost->host_lock); | |
7312 | vport->fc_flag &= ~FC_FABRIC; | |
7313 | spin_unlock_irq(shost->host_lock); | |
7314 | } | |
92d7f7b0 JS |
7315 | } |
7316 | ||
e59058c4 | 7317 | /** |
3621a710 | 7318 | * lpfc_issue_els_npiv_logo - Issue a logo off a vport |
e59058c4 JS |
7319 | * @vport: pointer to a virtual N_Port data structure. |
7320 | * @ndlp: pointer to a node-list data structure. | |
7321 | * | |
7322 | * This routine issues a LOGO ELS command to an @ndlp off a @vport. | |
7323 | * | |
7324 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
7325 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
7326 | * will be stored into the context1 field of the IOCB for the completion | |
7327 | * callback function to the LOGO ELS command. | |
7328 | * | |
7329 | * Return codes | |
7330 | * 0 - Successfully issued logo off the @vport | |
7331 | * 1 - Failed to issue logo off the @vport | |
7332 | **/ | |
92d7f7b0 JS |
7333 | int |
7334 | lpfc_issue_els_npiv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) | |
7335 | { | |
7336 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
7337 | struct lpfc_hba *phba = vport->phba; | |
92d7f7b0 JS |
7338 | IOCB_t *icmd; |
7339 | struct lpfc_iocbq *elsiocb; | |
7340 | uint8_t *pcmd; | |
7341 | uint16_t cmdsize; | |
7342 | ||
7343 | cmdsize = 2 * sizeof(uint32_t) + sizeof(struct lpfc_name); | |
7344 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, ndlp->nlp_DID, | |
7345 | ELS_CMD_LOGO); | |
7346 | if (!elsiocb) | |
7347 | return 1; | |
7348 | ||
7349 | icmd = &elsiocb->iocb; | |
7350 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
7351 | *((uint32_t *) (pcmd)) = ELS_CMD_LOGO; | |
7352 | pcmd += sizeof(uint32_t); | |
7353 | ||
7354 | /* Fill in LOGO payload */ | |
7355 | *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID); | |
7356 | pcmd += sizeof(uint32_t); | |
7357 | memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name)); | |
7358 | ||
858c9f6c JS |
7359 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
7360 | "Issue LOGO npiv did:x%x flg:x%x", | |
7361 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
7362 | ||
92d7f7b0 JS |
7363 | elsiocb->iocb_cmpl = lpfc_cmpl_els_npiv_logo; |
7364 | spin_lock_irq(shost->host_lock); | |
7365 | ndlp->nlp_flag |= NLP_LOGO_SND; | |
7366 | spin_unlock_irq(shost->host_lock); | |
3772a991 JS |
7367 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
7368 | IOCB_ERROR) { | |
92d7f7b0 JS |
7369 | spin_lock_irq(shost->host_lock); |
7370 | ndlp->nlp_flag &= ~NLP_LOGO_SND; | |
7371 | spin_unlock_irq(shost->host_lock); | |
7372 | lpfc_els_free_iocb(phba, elsiocb); | |
7373 | return 1; | |
7374 | } | |
7375 | return 0; | |
7376 | } | |
7377 | ||
e59058c4 | 7378 | /** |
3621a710 | 7379 | * lpfc_fabric_block_timeout - Handler function to the fabric block timer |
e59058c4 JS |
7380 | * @ptr: holder for the timer function associated data. |
7381 | * | |
7382 | * This routine is invoked by the fabric iocb block timer after | |
7383 | * timeout. It posts the fabric iocb block timeout event by setting the | |
7384 | * WORKER_FABRIC_BLOCK_TMO bit to work port event bitmap and then invokes | |
7385 | * lpfc_worker_wake_up() routine to wake up the worker thread. It is for | |
7386 | * the worker thread to invoke the lpfc_unblock_fabric_iocbs() on the | |
7387 | * posted event WORKER_FABRIC_BLOCK_TMO. | |
7388 | **/ | |
92d7f7b0 JS |
7389 | void |
7390 | lpfc_fabric_block_timeout(unsigned long ptr) | |
7391 | { | |
7392 | struct lpfc_hba *phba = (struct lpfc_hba *) ptr; | |
7393 | unsigned long iflags; | |
7394 | uint32_t tmo_posted; | |
5e9d9b82 | 7395 | |
92d7f7b0 JS |
7396 | spin_lock_irqsave(&phba->pport->work_port_lock, iflags); |
7397 | tmo_posted = phba->pport->work_port_events & WORKER_FABRIC_BLOCK_TMO; | |
7398 | if (!tmo_posted) | |
7399 | phba->pport->work_port_events |= WORKER_FABRIC_BLOCK_TMO; | |
7400 | spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags); | |
7401 | ||
5e9d9b82 JS |
7402 | if (!tmo_posted) |
7403 | lpfc_worker_wake_up(phba); | |
7404 | return; | |
92d7f7b0 JS |
7405 | } |
7406 | ||
e59058c4 | 7407 | /** |
3621a710 | 7408 | * lpfc_resume_fabric_iocbs - Issue a fabric iocb from driver internal list |
e59058c4 JS |
7409 | * @phba: pointer to lpfc hba data structure. |
7410 | * | |
7411 | * This routine issues one fabric iocb from the driver internal list to | |
7412 | * the HBA. It first checks whether it's ready to issue one fabric iocb to | |
7413 | * the HBA (whether there is no outstanding fabric iocb). If so, it shall | |
7414 | * remove one pending fabric iocb from the driver internal list and invokes | |
7415 | * lpfc_sli_issue_iocb() routine to send the fabric iocb to the HBA. | |
7416 | **/ | |
92d7f7b0 JS |
7417 | static void |
7418 | lpfc_resume_fabric_iocbs(struct lpfc_hba *phba) | |
7419 | { | |
7420 | struct lpfc_iocbq *iocb; | |
7421 | unsigned long iflags; | |
7422 | int ret; | |
92d7f7b0 JS |
7423 | IOCB_t *cmd; |
7424 | ||
7425 | repeat: | |
7426 | iocb = NULL; | |
7427 | spin_lock_irqsave(&phba->hbalock, iflags); | |
7f5f3d0d | 7428 | /* Post any pending iocb to the SLI layer */ |
92d7f7b0 JS |
7429 | if (atomic_read(&phba->fabric_iocb_count) == 0) { |
7430 | list_remove_head(&phba->fabric_iocb_list, iocb, typeof(*iocb), | |
7431 | list); | |
7432 | if (iocb) | |
7f5f3d0d | 7433 | /* Increment fabric iocb count to hold the position */ |
92d7f7b0 JS |
7434 | atomic_inc(&phba->fabric_iocb_count); |
7435 | } | |
7436 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
7437 | if (iocb) { | |
7438 | iocb->fabric_iocb_cmpl = iocb->iocb_cmpl; | |
7439 | iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb; | |
7440 | iocb->iocb_flag |= LPFC_IO_FABRIC; | |
7441 | ||
858c9f6c JS |
7442 | lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD, |
7443 | "Fabric sched1: ste:x%x", | |
7444 | iocb->vport->port_state, 0, 0); | |
7445 | ||
3772a991 | 7446 | ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0); |
92d7f7b0 JS |
7447 | |
7448 | if (ret == IOCB_ERROR) { | |
7449 | iocb->iocb_cmpl = iocb->fabric_iocb_cmpl; | |
7450 | iocb->fabric_iocb_cmpl = NULL; | |
7451 | iocb->iocb_flag &= ~LPFC_IO_FABRIC; | |
7452 | cmd = &iocb->iocb; | |
7453 | cmd->ulpStatus = IOSTAT_LOCAL_REJECT; | |
7454 | cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; | |
7455 | iocb->iocb_cmpl(phba, iocb, iocb); | |
7456 | ||
7457 | atomic_dec(&phba->fabric_iocb_count); | |
7458 | goto repeat; | |
7459 | } | |
7460 | } | |
7461 | ||
7462 | return; | |
7463 | } | |
7464 | ||
e59058c4 | 7465 | /** |
3621a710 | 7466 | * lpfc_unblock_fabric_iocbs - Unblock issuing fabric iocb command |
e59058c4 JS |
7467 | * @phba: pointer to lpfc hba data structure. |
7468 | * | |
7469 | * This routine unblocks the issuing fabric iocb command. The function | |
7470 | * will clear the fabric iocb block bit and then invoke the routine | |
7471 | * lpfc_resume_fabric_iocbs() to issue one of the pending fabric iocb | |
7472 | * from the driver internal fabric iocb list. | |
7473 | **/ | |
92d7f7b0 JS |
7474 | void |
7475 | lpfc_unblock_fabric_iocbs(struct lpfc_hba *phba) | |
7476 | { | |
7477 | clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); | |
7478 | ||
7479 | lpfc_resume_fabric_iocbs(phba); | |
7480 | return; | |
7481 | } | |
7482 | ||
e59058c4 | 7483 | /** |
3621a710 | 7484 | * lpfc_block_fabric_iocbs - Block issuing fabric iocb command |
e59058c4 JS |
7485 | * @phba: pointer to lpfc hba data structure. |
7486 | * | |
7487 | * This routine blocks the issuing fabric iocb for a specified amount of | |
7488 | * time (currently 100 ms). This is done by set the fabric iocb block bit | |
7489 | * and set up a timeout timer for 100ms. When the block bit is set, no more | |
7490 | * fabric iocb will be issued out of the HBA. | |
7491 | **/ | |
92d7f7b0 JS |
7492 | static void |
7493 | lpfc_block_fabric_iocbs(struct lpfc_hba *phba) | |
7494 | { | |
7495 | int blocked; | |
7496 | ||
7497 | blocked = test_and_set_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); | |
7f5f3d0d | 7498 | /* Start a timer to unblock fabric iocbs after 100ms */ |
92d7f7b0 JS |
7499 | if (!blocked) |
7500 | mod_timer(&phba->fabric_block_timer, jiffies + HZ/10 ); | |
7501 | ||
7502 | return; | |
7503 | } | |
7504 | ||
e59058c4 | 7505 | /** |
3621a710 | 7506 | * lpfc_cmpl_fabric_iocb - Completion callback function for fabric iocb |
e59058c4 JS |
7507 | * @phba: pointer to lpfc hba data structure. |
7508 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
7509 | * @rspiocb: pointer to lpfc response iocb data structure. | |
7510 | * | |
7511 | * This routine is the callback function that is put to the fabric iocb's | |
7512 | * callback function pointer (iocb->iocb_cmpl). The original iocb's callback | |
7513 | * function pointer has been stored in iocb->fabric_iocb_cmpl. This callback | |
7514 | * function first restores and invokes the original iocb's callback function | |
7515 | * and then invokes the lpfc_resume_fabric_iocbs() routine to issue the next | |
7516 | * fabric bound iocb from the driver internal fabric iocb list onto the wire. | |
7517 | **/ | |
92d7f7b0 JS |
7518 | static void |
7519 | lpfc_cmpl_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
7520 | struct lpfc_iocbq *rspiocb) | |
7521 | { | |
7522 | struct ls_rjt stat; | |
7523 | ||
7524 | if ((cmdiocb->iocb_flag & LPFC_IO_FABRIC) != LPFC_IO_FABRIC) | |
7525 | BUG(); | |
7526 | ||
7527 | switch (rspiocb->iocb.ulpStatus) { | |
7528 | case IOSTAT_NPORT_RJT: | |
7529 | case IOSTAT_FABRIC_RJT: | |
7530 | if (rspiocb->iocb.un.ulpWord[4] & RJT_UNAVAIL_TEMP) { | |
7531 | lpfc_block_fabric_iocbs(phba); | |
ed957684 | 7532 | } |
92d7f7b0 JS |
7533 | break; |
7534 | ||
7535 | case IOSTAT_NPORT_BSY: | |
7536 | case IOSTAT_FABRIC_BSY: | |
7537 | lpfc_block_fabric_iocbs(phba); | |
7538 | break; | |
7539 | ||
7540 | case IOSTAT_LS_RJT: | |
7541 | stat.un.lsRjtError = | |
7542 | be32_to_cpu(rspiocb->iocb.un.ulpWord[4]); | |
7543 | if ((stat.un.b.lsRjtRsnCode == LSRJT_UNABLE_TPC) || | |
7544 | (stat.un.b.lsRjtRsnCode == LSRJT_LOGICAL_BSY)) | |
7545 | lpfc_block_fabric_iocbs(phba); | |
7546 | break; | |
7547 | } | |
7548 | ||
7549 | if (atomic_read(&phba->fabric_iocb_count) == 0) | |
7550 | BUG(); | |
7551 | ||
7552 | cmdiocb->iocb_cmpl = cmdiocb->fabric_iocb_cmpl; | |
7553 | cmdiocb->fabric_iocb_cmpl = NULL; | |
7554 | cmdiocb->iocb_flag &= ~LPFC_IO_FABRIC; | |
7555 | cmdiocb->iocb_cmpl(phba, cmdiocb, rspiocb); | |
7556 | ||
7557 | atomic_dec(&phba->fabric_iocb_count); | |
7558 | if (!test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags)) { | |
7f5f3d0d JS |
7559 | /* Post any pending iocbs to HBA */ |
7560 | lpfc_resume_fabric_iocbs(phba); | |
92d7f7b0 JS |
7561 | } |
7562 | } | |
7563 | ||
e59058c4 | 7564 | /** |
3621a710 | 7565 | * lpfc_issue_fabric_iocb - Issue a fabric iocb command |
e59058c4 JS |
7566 | * @phba: pointer to lpfc hba data structure. |
7567 | * @iocb: pointer to lpfc command iocb data structure. | |
7568 | * | |
7569 | * This routine is used as the top-level API for issuing a fabric iocb command | |
7570 | * such as FLOGI and FDISC. To accommodate certain switch fabric, this driver | |
7571 | * function makes sure that only one fabric bound iocb will be outstanding at | |
7572 | * any given time. As such, this function will first check to see whether there | |
7573 | * is already an outstanding fabric iocb on the wire. If so, it will put the | |
7574 | * newly issued iocb onto the driver internal fabric iocb list, waiting to be | |
7575 | * issued later. Otherwise, it will issue the iocb on the wire and update the | |
7576 | * fabric iocb count it indicate that there is one fabric iocb on the wire. | |
7577 | * | |
7578 | * Note, this implementation has a potential sending out fabric IOCBs out of | |
7579 | * order. The problem is caused by the construction of the "ready" boolen does | |
7580 | * not include the condition that the internal fabric IOCB list is empty. As | |
7581 | * such, it is possible a fabric IOCB issued by this routine might be "jump" | |
7582 | * ahead of the fabric IOCBs in the internal list. | |
7583 | * | |
7584 | * Return code | |
7585 | * IOCB_SUCCESS - either fabric iocb put on the list or issued successfully | |
7586 | * IOCB_ERROR - failed to issue fabric iocb | |
7587 | **/ | |
a6ababd2 | 7588 | static int |
92d7f7b0 JS |
7589 | lpfc_issue_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *iocb) |
7590 | { | |
7591 | unsigned long iflags; | |
92d7f7b0 JS |
7592 | int ready; |
7593 | int ret; | |
7594 | ||
7595 | if (atomic_read(&phba->fabric_iocb_count) > 1) | |
7596 | BUG(); | |
7597 | ||
7598 | spin_lock_irqsave(&phba->hbalock, iflags); | |
7599 | ready = atomic_read(&phba->fabric_iocb_count) == 0 && | |
7600 | !test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); | |
7601 | ||
7f5f3d0d JS |
7602 | if (ready) |
7603 | /* Increment fabric iocb count to hold the position */ | |
7604 | atomic_inc(&phba->fabric_iocb_count); | |
92d7f7b0 JS |
7605 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
7606 | if (ready) { | |
7607 | iocb->fabric_iocb_cmpl = iocb->iocb_cmpl; | |
7608 | iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb; | |
7609 | iocb->iocb_flag |= LPFC_IO_FABRIC; | |
7610 | ||
858c9f6c JS |
7611 | lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD, |
7612 | "Fabric sched2: ste:x%x", | |
7613 | iocb->vport->port_state, 0, 0); | |
7614 | ||
3772a991 | 7615 | ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0); |
92d7f7b0 JS |
7616 | |
7617 | if (ret == IOCB_ERROR) { | |
7618 | iocb->iocb_cmpl = iocb->fabric_iocb_cmpl; | |
7619 | iocb->fabric_iocb_cmpl = NULL; | |
7620 | iocb->iocb_flag &= ~LPFC_IO_FABRIC; | |
7621 | atomic_dec(&phba->fabric_iocb_count); | |
7622 | } | |
7623 | } else { | |
7624 | spin_lock_irqsave(&phba->hbalock, iflags); | |
7625 | list_add_tail(&iocb->list, &phba->fabric_iocb_list); | |
7626 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
7627 | ret = IOCB_SUCCESS; | |
7628 | } | |
7629 | return ret; | |
7630 | } | |
7631 | ||
e59058c4 | 7632 | /** |
3621a710 | 7633 | * lpfc_fabric_abort_vport - Abort a vport's iocbs from driver fabric iocb list |
e59058c4 JS |
7634 | * @vport: pointer to a virtual N_Port data structure. |
7635 | * | |
7636 | * This routine aborts all the IOCBs associated with a @vport from the | |
7637 | * driver internal fabric IOCB list. The list contains fabric IOCBs to be | |
7638 | * issued to the ELS IOCB ring. This abort function walks the fabric IOCB | |
7639 | * list, removes each IOCB associated with the @vport off the list, set the | |
7640 | * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function | |
7641 | * associated with the IOCB. | |
7642 | **/ | |
a6ababd2 | 7643 | static void lpfc_fabric_abort_vport(struct lpfc_vport *vport) |
92d7f7b0 JS |
7644 | { |
7645 | LIST_HEAD(completions); | |
7646 | struct lpfc_hba *phba = vport->phba; | |
7647 | struct lpfc_iocbq *tmp_iocb, *piocb; | |
92d7f7b0 JS |
7648 | |
7649 | spin_lock_irq(&phba->hbalock); | |
7650 | list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list, | |
7651 | list) { | |
7652 | ||
7653 | if (piocb->vport != vport) | |
7654 | continue; | |
7655 | ||
7656 | list_move_tail(&piocb->list, &completions); | |
7657 | } | |
7658 | spin_unlock_irq(&phba->hbalock); | |
7659 | ||
a257bf90 JS |
7660 | /* Cancel all the IOCBs from the completions list */ |
7661 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
7662 | IOERR_SLI_ABORTED); | |
92d7f7b0 JS |
7663 | } |
7664 | ||
e59058c4 | 7665 | /** |
3621a710 | 7666 | * lpfc_fabric_abort_nport - Abort a ndlp's iocbs from driver fabric iocb list |
e59058c4 JS |
7667 | * @ndlp: pointer to a node-list data structure. |
7668 | * | |
7669 | * This routine aborts all the IOCBs associated with an @ndlp from the | |
7670 | * driver internal fabric IOCB list. The list contains fabric IOCBs to be | |
7671 | * issued to the ELS IOCB ring. This abort function walks the fabric IOCB | |
7672 | * list, removes each IOCB associated with the @ndlp off the list, set the | |
7673 | * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function | |
7674 | * associated with the IOCB. | |
7675 | **/ | |
92d7f7b0 JS |
7676 | void lpfc_fabric_abort_nport(struct lpfc_nodelist *ndlp) |
7677 | { | |
7678 | LIST_HEAD(completions); | |
a257bf90 | 7679 | struct lpfc_hba *phba = ndlp->phba; |
92d7f7b0 JS |
7680 | struct lpfc_iocbq *tmp_iocb, *piocb; |
7681 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; | |
92d7f7b0 JS |
7682 | |
7683 | spin_lock_irq(&phba->hbalock); | |
7684 | list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list, | |
7685 | list) { | |
7686 | if ((lpfc_check_sli_ndlp(phba, pring, piocb, ndlp))) { | |
7687 | ||
7688 | list_move_tail(&piocb->list, &completions); | |
ed957684 | 7689 | } |
dea3101e | 7690 | } |
92d7f7b0 JS |
7691 | spin_unlock_irq(&phba->hbalock); |
7692 | ||
a257bf90 JS |
7693 | /* Cancel all the IOCBs from the completions list */ |
7694 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
7695 | IOERR_SLI_ABORTED); | |
92d7f7b0 JS |
7696 | } |
7697 | ||
e59058c4 | 7698 | /** |
3621a710 | 7699 | * lpfc_fabric_abort_hba - Abort all iocbs on driver fabric iocb list |
e59058c4 JS |
7700 | * @phba: pointer to lpfc hba data structure. |
7701 | * | |
7702 | * This routine aborts all the IOCBs currently on the driver internal | |
7703 | * fabric IOCB list. The list contains fabric IOCBs to be issued to the ELS | |
7704 | * IOCB ring. This function takes the entire IOCB list off the fabric IOCB | |
7705 | * list, removes IOCBs off the list, set the status feild to | |
7706 | * IOSTAT_LOCAL_REJECT, and invokes the callback function associated with | |
7707 | * the IOCB. | |
7708 | **/ | |
92d7f7b0 JS |
7709 | void lpfc_fabric_abort_hba(struct lpfc_hba *phba) |
7710 | { | |
7711 | LIST_HEAD(completions); | |
92d7f7b0 JS |
7712 | |
7713 | spin_lock_irq(&phba->hbalock); | |
7714 | list_splice_init(&phba->fabric_iocb_list, &completions); | |
7715 | spin_unlock_irq(&phba->hbalock); | |
7716 | ||
a257bf90 JS |
7717 | /* Cancel all the IOCBs from the completions list */ |
7718 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
7719 | IOERR_SLI_ABORTED); | |
dea3101e | 7720 | } |
6fb120a7 | 7721 | |
1151e3ec JS |
7722 | /** |
7723 | * lpfc_sli4_vport_delete_els_xri_aborted -Remove all ndlp references for vport | |
7724 | * @vport: pointer to lpfc vport data structure. | |
7725 | * | |
7726 | * This routine is invoked by the vport cleanup for deletions and the cleanup | |
7727 | * for an ndlp on removal. | |
7728 | **/ | |
7729 | void | |
7730 | lpfc_sli4_vport_delete_els_xri_aborted(struct lpfc_vport *vport) | |
7731 | { | |
7732 | struct lpfc_hba *phba = vport->phba; | |
7733 | struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; | |
7734 | unsigned long iflag = 0; | |
7735 | ||
7736 | spin_lock_irqsave(&phba->hbalock, iflag); | |
7737 | spin_lock(&phba->sli4_hba.abts_sgl_list_lock); | |
7738 | list_for_each_entry_safe(sglq_entry, sglq_next, | |
7739 | &phba->sli4_hba.lpfc_abts_els_sgl_list, list) { | |
7740 | if (sglq_entry->ndlp && sglq_entry->ndlp->vport == vport) | |
7741 | sglq_entry->ndlp = NULL; | |
7742 | } | |
7743 | spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); | |
7744 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
7745 | return; | |
7746 | } | |
7747 | ||
6fb120a7 JS |
7748 | /** |
7749 | * lpfc_sli4_els_xri_aborted - Slow-path process of els xri abort | |
7750 | * @phba: pointer to lpfc hba data structure. | |
7751 | * @axri: pointer to the els xri abort wcqe structure. | |
7752 | * | |
7753 | * This routine is invoked by the worker thread to process a SLI4 slow-path | |
7754 | * ELS aborted xri. | |
7755 | **/ | |
7756 | void | |
7757 | lpfc_sli4_els_xri_aborted(struct lpfc_hba *phba, | |
7758 | struct sli4_wcqe_xri_aborted *axri) | |
7759 | { | |
7760 | uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri); | |
19ca7609 | 7761 | uint16_t rxid = bf_get(lpfc_wcqe_xa_remote_xid, axri); |
7851fe2c | 7762 | uint16_t lxri = 0; |
19ca7609 | 7763 | |
6fb120a7 JS |
7764 | struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; |
7765 | unsigned long iflag = 0; | |
19ca7609 | 7766 | struct lpfc_nodelist *ndlp; |
589a52d6 | 7767 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; |
6fb120a7 | 7768 | |
0f65ff68 JS |
7769 | spin_lock_irqsave(&phba->hbalock, iflag); |
7770 | spin_lock(&phba->sli4_hba.abts_sgl_list_lock); | |
6fb120a7 JS |
7771 | list_for_each_entry_safe(sglq_entry, sglq_next, |
7772 | &phba->sli4_hba.lpfc_abts_els_sgl_list, list) { | |
7773 | if (sglq_entry->sli4_xritag == xri) { | |
7774 | list_del(&sglq_entry->list); | |
19ca7609 JS |
7775 | ndlp = sglq_entry->ndlp; |
7776 | sglq_entry->ndlp = NULL; | |
6fb120a7 JS |
7777 | list_add_tail(&sglq_entry->list, |
7778 | &phba->sli4_hba.lpfc_sgl_list); | |
0f65ff68 JS |
7779 | sglq_entry->state = SGL_FREED; |
7780 | spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); | |
6fb120a7 | 7781 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
19ca7609 | 7782 | lpfc_set_rrq_active(phba, ndlp, xri, rxid, 1); |
589a52d6 JS |
7783 | |
7784 | /* Check if TXQ queue needs to be serviced */ | |
7785 | if (pring->txq_cnt) | |
7786 | lpfc_worker_wake_up(phba); | |
6fb120a7 JS |
7787 | return; |
7788 | } | |
7789 | } | |
0f65ff68 | 7790 | spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); |
7851fe2c JS |
7791 | lxri = lpfc_sli4_xri_inrange(phba, xri); |
7792 | if (lxri == NO_XRI) { | |
7793 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
7794 | return; | |
7795 | } | |
7796 | sglq_entry = __lpfc_get_active_sglq(phba, lxri); | |
0f65ff68 JS |
7797 | if (!sglq_entry || (sglq_entry->sli4_xritag != xri)) { |
7798 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
7799 | return; | |
7800 | } | |
7801 | sglq_entry->state = SGL_XRI_ABORTED; | |
7802 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
7803 | return; | |
6fb120a7 | 7804 | } |