scsi: lpfc: Fix NULL pointer dereference during PCI error recovery
[GitHub/LineageOS/android_kernel_motorola_exynos9610.git] / drivers / scsi / lpfc / lpfc_els.c
CommitLineData
dea3101e
JB
1/*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
c44ce173 3 * Fibre Channel Host Bus Adapters. *
d080abe0
JS
4 * Copyright (C) 2017 Broadcom. All Rights Reserved. The term *
5 * “Broadcom” refers to Broadcom Limited and/or its subsidiaries. *
50611577 6 * Copyright (C) 2004-2016 Emulex. All rights reserved. *
c44ce173 7 * EMULEX and SLI are trademarks of Emulex. *
d080abe0 8 * www.broadcom.com *
c44ce173 9 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
dea3101e
JB
10 * *
11 * This program is free software; you can redistribute it and/or *
c44ce173
JSEC
12 * modify it under the terms of version 2 of the GNU General *
13 * Public License as published by the Free Software Foundation. *
14 * This program is distributed in the hope that it will be useful. *
15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
19 * TO BE LEGALLY INVALID. See the GNU General Public License for *
20 * more details, a copy of which can be found in the file COPYING *
21 * included with this package. *
dea3101e 22 *******************************************************************/
09372820 23/* See Fibre Channel protocol T11 FC-LS for details */
dea3101e
JB
24#include <linux/blkdev.h>
25#include <linux/pci.h>
5a0e3ad6 26#include <linux/slab.h>
dea3101e
JB
27#include <linux/interrupt.h>
28
91886523 29#include <scsi/scsi.h>
dea3101e
JB
30#include <scsi/scsi_device.h>
31#include <scsi/scsi_host.h>
32#include <scsi/scsi_transport_fc.h>
33
da0436e9 34#include "lpfc_hw4.h"
dea3101e
JB
35#include "lpfc_hw.h"
36#include "lpfc_sli.h"
da0436e9 37#include "lpfc_sli4.h"
ea2151b4 38#include "lpfc_nl.h"
dea3101e
JB
39#include "lpfc_disc.h"
40#include "lpfc_scsi.h"
41#include "lpfc.h"
42#include "lpfc_logmsg.h"
43#include "lpfc_crtn.h"
92d7f7b0 44#include "lpfc_vport.h"
858c9f6c 45#include "lpfc_debugfs.h"
dea3101e
JB
46
47static int lpfc_els_retry(struct lpfc_hba *, struct lpfc_iocbq *,
48 struct lpfc_iocbq *);
92d7f7b0
JS
49static void lpfc_cmpl_fabric_iocb(struct lpfc_hba *, struct lpfc_iocbq *,
50 struct lpfc_iocbq *);
a6ababd2
AB
51static void lpfc_fabric_abort_vport(struct lpfc_vport *vport);
52static int lpfc_issue_els_fdisc(struct lpfc_vport *vport,
53 struct lpfc_nodelist *ndlp, uint8_t retry);
54static int lpfc_issue_fabric_iocb(struct lpfc_hba *phba,
55 struct lpfc_iocbq *iocb);
92d7f7b0 56
dea3101e
JB
57static int lpfc_max_els_tries = 3;
58
e59058c4 59/**
3621a710 60 * lpfc_els_chk_latt - Check host link attention event for a vport
e59058c4
JS
61 * @vport: pointer to a host virtual N_Port data structure.
62 *
63 * This routine checks whether there is an outstanding host link
64 * attention event during the discovery process with the @vport. It is done
65 * by reading the HBA's Host Attention (HA) register. If there is any host
66 * link attention events during this @vport's discovery process, the @vport
67 * shall be marked as FC_ABORT_DISCOVERY, a host link attention clear shall
68 * be issued if the link state is not already in host link cleared state,
69 * and a return code shall indicate whether the host link attention event
70 * had happened.
71 *
72 * Note that, if either the host link is in state LPFC_LINK_DOWN or @vport
73 * state in LPFC_VPORT_READY, the request for checking host link attention
74 * event will be ignored and a return code shall indicate no host link
75 * attention event had happened.
76 *
77 * Return codes
78 * 0 - no host link attention event happened
79 * 1 - host link attention event happened
80 **/
858c9f6c 81int
2e0fef85 82lpfc_els_chk_latt(struct lpfc_vport *vport)
dea3101e 83{
2e0fef85
JS
84 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
85 struct lpfc_hba *phba = vport->phba;
dea3101e 86 uint32_t ha_copy;
dea3101e 87
2e0fef85 88 if (vport->port_state >= LPFC_VPORT_READY ||
3772a991
JS
89 phba->link_state == LPFC_LINK_DOWN ||
90 phba->sli_rev > LPFC_SLI_REV3)
dea3101e
JB
91 return 0;
92
93 /* Read the HBA Host Attention Register */
9940b97b
JS
94 if (lpfc_readl(phba->HAregaddr, &ha_copy))
95 return 1;
dea3101e
JB
96
97 if (!(ha_copy & HA_LATT))
98 return 0;
99
100 /* Pending Link Event during Discovery */
e8b62011
JS
101 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
102 "0237 Pending Link Event during "
103 "Discovery: State x%x\n",
104 phba->pport->port_state);
dea3101e
JB
105
106 /* CLEAR_LA should re-enable link attention events and
25985edc 107 * we should then immediately take a LATT event. The
dea3101e
JB
108 * LATT processing should call lpfc_linkdown() which
109 * will cleanup any left over in-progress discovery
110 * events.
111 */
2e0fef85
JS
112 spin_lock_irq(shost->host_lock);
113 vport->fc_flag |= FC_ABORT_DISCOVERY;
114 spin_unlock_irq(shost->host_lock);
dea3101e 115
92d7f7b0 116 if (phba->link_state != LPFC_CLEAR_LA)
ed957684 117 lpfc_issue_clear_la(phba, vport);
dea3101e 118
c9f8735b 119 return 1;
dea3101e
JB
120}
121
e59058c4 122/**
3621a710 123 * lpfc_prep_els_iocb - Allocate and prepare a lpfc iocb data structure
e59058c4
JS
124 * @vport: pointer to a host virtual N_Port data structure.
125 * @expectRsp: flag indicating whether response is expected.
126 * @cmdSize: size of the ELS command.
127 * @retry: number of retries to the command IOCB when it fails.
128 * @ndlp: pointer to a node-list data structure.
129 * @did: destination identifier.
130 * @elscmd: the ELS command code.
131 *
132 * This routine is used for allocating a lpfc-IOCB data structure from
133 * the driver lpfc-IOCB free-list and prepare the IOCB with the parameters
134 * passed into the routine for discovery state machine to issue an Extended
135 * Link Service (ELS) commands. It is a generic lpfc-IOCB allocation
136 * and preparation routine that is used by all the discovery state machine
137 * routines and the ELS command-specific fields will be later set up by
138 * the individual discovery machine routines after calling this routine
139 * allocating and preparing a generic IOCB data structure. It fills in the
140 * Buffer Descriptor Entries (BDEs), allocates buffers for both command
141 * payload and response payload (if expected). The reference count on the
142 * ndlp is incremented by 1 and the reference to the ndlp is put into
143 * context1 of the IOCB data structure for this IOCB to hold the ndlp
144 * reference for the command's callback function to access later.
145 *
146 * Return code
147 * Pointer to the newly allocated/prepared els iocb data structure
148 * NULL - when els iocb data structure allocation/preparation failed
149 **/
f1c3b0fc 150struct lpfc_iocbq *
2e0fef85
JS
151lpfc_prep_els_iocb(struct lpfc_vport *vport, uint8_t expectRsp,
152 uint16_t cmdSize, uint8_t retry,
153 struct lpfc_nodelist *ndlp, uint32_t did,
154 uint32_t elscmd)
dea3101e 155{
2e0fef85 156 struct lpfc_hba *phba = vport->phba;
0bd4ca25 157 struct lpfc_iocbq *elsiocb;
dea3101e
JB
158 struct lpfc_dmabuf *pcmd, *prsp, *pbuflist;
159 struct ulp_bde64 *bpl;
160 IOCB_t *icmd;
161
dea3101e 162
2e0fef85
JS
163 if (!lpfc_is_link_up(phba))
164 return NULL;
dea3101e 165
dea3101e 166 /* Allocate buffer for command iocb */
0bd4ca25 167 elsiocb = lpfc_sli_get_iocbq(phba);
dea3101e
JB
168
169 if (elsiocb == NULL)
170 return NULL;
e47c9093 171
0c287589
JS
172 /*
173 * If this command is for fabric controller and HBA running
174 * in FIP mode send FLOGI, FDISC and LOGO as FIP frames.
175 */
176 if ((did == Fabric_DID) &&
45ed1190 177 (phba->hba_flag & HBA_FIP_SUPPORT) &&
0c287589
JS
178 ((elscmd == ELS_CMD_FLOGI) ||
179 (elscmd == ELS_CMD_FDISC) ||
180 (elscmd == ELS_CMD_LOGO)))
c868595d
JS
181 switch (elscmd) {
182 case ELS_CMD_FLOGI:
f0d9bccc
JS
183 elsiocb->iocb_flag |=
184 ((LPFC_ELS_ID_FLOGI << LPFC_FIP_ELS_ID_SHIFT)
c868595d
JS
185 & LPFC_FIP_ELS_ID_MASK);
186 break;
187 case ELS_CMD_FDISC:
f0d9bccc
JS
188 elsiocb->iocb_flag |=
189 ((LPFC_ELS_ID_FDISC << LPFC_FIP_ELS_ID_SHIFT)
c868595d
JS
190 & LPFC_FIP_ELS_ID_MASK);
191 break;
192 case ELS_CMD_LOGO:
f0d9bccc
JS
193 elsiocb->iocb_flag |=
194 ((LPFC_ELS_ID_LOGO << LPFC_FIP_ELS_ID_SHIFT)
c868595d
JS
195 & LPFC_FIP_ELS_ID_MASK);
196 break;
197 }
0c287589 198 else
c868595d 199 elsiocb->iocb_flag &= ~LPFC_FIP_ELS_ID_MASK;
0c287589 200
dea3101e
JB
201 icmd = &elsiocb->iocb;
202
203 /* fill in BDEs for command */
204 /* Allocate buffer for command payload */
98c9ea5c
JS
205 pcmd = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
206 if (pcmd)
207 pcmd->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &pcmd->phys);
fa4066b6
JS
208 if (!pcmd || !pcmd->virt)
209 goto els_iocb_free_pcmb_exit;
dea3101e
JB
210
211 INIT_LIST_HEAD(&pcmd->list);
212
213 /* Allocate buffer for response payload */
214 if (expectRsp) {
92d7f7b0 215 prsp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
dea3101e
JB
216 if (prsp)
217 prsp->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
218 &prsp->phys);
fa4066b6
JS
219 if (!prsp || !prsp->virt)
220 goto els_iocb_free_prsp_exit;
dea3101e 221 INIT_LIST_HEAD(&prsp->list);
e47c9093 222 } else
dea3101e 223 prsp = NULL;
dea3101e
JB
224
225 /* Allocate buffer for Buffer ptr list */
92d7f7b0 226 pbuflist = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
dea3101e 227 if (pbuflist)
ed957684
JS
228 pbuflist->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
229 &pbuflist->phys);
fa4066b6
JS
230 if (!pbuflist || !pbuflist->virt)
231 goto els_iocb_free_pbuf_exit;
dea3101e
JB
232
233 INIT_LIST_HEAD(&pbuflist->list);
234
dea3101e 235 if (expectRsp) {
939723a4
JS
236 icmd->un.elsreq64.bdl.addrHigh = putPaddrHigh(pbuflist->phys);
237 icmd->un.elsreq64.bdl.addrLow = putPaddrLow(pbuflist->phys);
238 icmd->un.elsreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
92d7f7b0 239 icmd->un.elsreq64.bdl.bdeSize = (2 * sizeof(struct ulp_bde64));
939723a4
JS
240
241 icmd->un.elsreq64.remoteID = did; /* DID */
dea3101e 242 icmd->ulpCommand = CMD_ELS_REQUEST64_CR;
88f43a08
JS
243 if (elscmd == ELS_CMD_FLOGI)
244 icmd->ulpTimeout = FF_DEF_RATOV * 2;
245 else
246 icmd->ulpTimeout = phba->fc_ratov * 2;
dea3101e 247 } else {
939723a4
JS
248 icmd->un.xseq64.bdl.addrHigh = putPaddrHigh(pbuflist->phys);
249 icmd->un.xseq64.bdl.addrLow = putPaddrLow(pbuflist->phys);
250 icmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
251 icmd->un.xseq64.bdl.bdeSize = sizeof(struct ulp_bde64);
252 icmd->un.xseq64.xmit_els_remoteID = did; /* DID */
dea3101e
JB
253 icmd->ulpCommand = CMD_XMIT_ELS_RSP64_CX;
254 }
dea3101e
JB
255 icmd->ulpBdeCount = 1;
256 icmd->ulpLe = 1;
257 icmd->ulpClass = CLASS3;
258
939723a4
JS
259 /*
260 * If we have NPIV enabled, we want to send ELS traffic by VPI.
261 * For SLI4, since the driver controls VPIs we also want to include
262 * all ELS pt2pt protocol traffic as well.
263 */
264 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) ||
265 ((phba->sli_rev == LPFC_SLI_REV4) &&
266 (vport->fc_flag & FC_PT2PT))) {
267
268 if (expectRsp) {
269 icmd->un.elsreq64.myID = vport->fc_myDID;
270
271 /* For ELS_REQUEST64_CR, use the VPI by default */
272 icmd->ulpContext = phba->vpi_ids[vport->vpi];
273 }
92d7f7b0 274
92d7f7b0 275 icmd->ulpCt_h = 0;
eada272d
JS
276 /* The CT field must be 0=INVALID_RPI for the ECHO cmd */
277 if (elscmd == ELS_CMD_ECHO)
278 icmd->ulpCt_l = 0; /* context = invalid RPI */
279 else
280 icmd->ulpCt_l = 1; /* context = VPI */
92d7f7b0
JS
281 }
282
dea3101e
JB
283 bpl = (struct ulp_bde64 *) pbuflist->virt;
284 bpl->addrLow = le32_to_cpu(putPaddrLow(pcmd->phys));
285 bpl->addrHigh = le32_to_cpu(putPaddrHigh(pcmd->phys));
286 bpl->tus.f.bdeSize = cmdSize;
287 bpl->tus.f.bdeFlags = 0;
288 bpl->tus.w = le32_to_cpu(bpl->tus.w);
289
290 if (expectRsp) {
291 bpl++;
292 bpl->addrLow = le32_to_cpu(putPaddrLow(prsp->phys));
293 bpl->addrHigh = le32_to_cpu(putPaddrHigh(prsp->phys));
294 bpl->tus.f.bdeSize = FCELSSIZE;
34b02dcd 295 bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64;
dea3101e
JB
296 bpl->tus.w = le32_to_cpu(bpl->tus.w);
297 }
298
fa4066b6 299 /* prevent preparing iocb with NULL ndlp reference */
51ef4c26 300 elsiocb->context1 = lpfc_nlp_get(ndlp);
fa4066b6
JS
301 if (!elsiocb->context1)
302 goto els_iocb_free_pbuf_exit;
329f9bc7
JS
303 elsiocb->context2 = pcmd;
304 elsiocb->context3 = pbuflist;
dea3101e 305 elsiocb->retry = retry;
2e0fef85 306 elsiocb->vport = vport;
dea3101e
JB
307 elsiocb->drvrTimeout = (phba->fc_ratov << 1) + LPFC_DRVR_TIMEOUT;
308
309 if (prsp) {
310 list_add(&prsp->list, &pcmd->list);
311 }
dea3101e
JB
312 if (expectRsp) {
313 /* Xmit ELS command <elsCmd> to remote NPORT <did> */
e8b62011
JS
314 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
315 "0116 Xmit ELS command x%x to remote "
e74c03c8
JS
316 "NPORT x%x I/O tag: x%x, port state:x%x"
317 " fc_flag:x%x\n",
e8b62011 318 elscmd, did, elsiocb->iotag,
e74c03c8
JS
319 vport->port_state,
320 vport->fc_flag);
dea3101e
JB
321 } else {
322 /* Xmit ELS response <elsCmd> to remote NPORT <did> */
e8b62011
JS
323 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
324 "0117 Xmit ELS response x%x to remote "
e74c03c8
JS
325 "NPORT x%x I/O tag: x%x, size: x%x "
326 "port_state x%x fc_flag x%x\n",
e8b62011 327 elscmd, ndlp->nlp_DID, elsiocb->iotag,
e74c03c8
JS
328 cmdSize, vport->port_state,
329 vport->fc_flag);
dea3101e 330 }
c9f8735b 331 return elsiocb;
dea3101e 332
fa4066b6 333els_iocb_free_pbuf_exit:
eaf15d5b
JS
334 if (expectRsp)
335 lpfc_mbuf_free(phba, prsp->virt, prsp->phys);
fa4066b6
JS
336 kfree(pbuflist);
337
338els_iocb_free_prsp_exit:
339 lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys);
340 kfree(prsp);
341
342els_iocb_free_pcmb_exit:
343 kfree(pcmd);
344 lpfc_sli_release_iocbq(phba, elsiocb);
345 return NULL;
346}
dea3101e 347
e59058c4 348/**
3621a710 349 * lpfc_issue_fabric_reglogin - Issue fabric registration login for a vport
e59058c4
JS
350 * @vport: pointer to a host virtual N_Port data structure.
351 *
352 * This routine issues a fabric registration login for a @vport. An
353 * active ndlp node with Fabric_DID must already exist for this @vport.
354 * The routine invokes two mailbox commands to carry out fabric registration
355 * login through the HBA firmware: the first mailbox command requests the
356 * HBA to perform link configuration for the @vport; and the second mailbox
357 * command requests the HBA to perform the actual fabric registration login
358 * with the @vport.
359 *
360 * Return code
361 * 0 - successfully issued fabric registration login for @vport
362 * -ENXIO -- failed to issue fabric registration login for @vport
363 **/
3772a991 364int
92d7f7b0 365lpfc_issue_fabric_reglogin(struct lpfc_vport *vport)
dea3101e 366{
2e0fef85 367 struct lpfc_hba *phba = vport->phba;
dea3101e 368 LPFC_MBOXQ_t *mbox;
14691150 369 struct lpfc_dmabuf *mp;
92d7f7b0
JS
370 struct lpfc_nodelist *ndlp;
371 struct serv_parm *sp;
dea3101e 372 int rc;
98c9ea5c 373 int err = 0;
dea3101e 374
92d7f7b0
JS
375 sp = &phba->fc_fabparam;
376 ndlp = lpfc_findnode_did(vport, Fabric_DID);
e47c9093 377 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
98c9ea5c 378 err = 1;
92d7f7b0 379 goto fail;
98c9ea5c 380 }
92d7f7b0
JS
381
382 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
98c9ea5c
JS
383 if (!mbox) {
384 err = 2;
92d7f7b0 385 goto fail;
98c9ea5c 386 }
92d7f7b0
JS
387
388 vport->port_state = LPFC_FABRIC_CFG_LINK;
389 lpfc_config_link(phba, mbox);
390 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
391 mbox->vport = vport;
392
0b727fea 393 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
98c9ea5c
JS
394 if (rc == MBX_NOT_FINISHED) {
395 err = 3;
92d7f7b0 396 goto fail_free_mbox;
98c9ea5c 397 }
92d7f7b0
JS
398
399 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
98c9ea5c
JS
400 if (!mbox) {
401 err = 4;
92d7f7b0 402 goto fail;
98c9ea5c 403 }
4042629e
JS
404 rc = lpfc_reg_rpi(phba, vport->vpi, Fabric_DID, (uint8_t *)sp, mbox,
405 ndlp->nlp_rpi);
98c9ea5c
JS
406 if (rc) {
407 err = 5;
92d7f7b0 408 goto fail_free_mbox;
98c9ea5c 409 }
92d7f7b0
JS
410
411 mbox->mbox_cmpl = lpfc_mbx_cmpl_fabric_reg_login;
412 mbox->vport = vport;
e47c9093
JS
413 /* increment the reference count on ndlp to hold reference
414 * for the callback routine.
415 */
92d7f7b0
JS
416 mbox->context2 = lpfc_nlp_get(ndlp);
417
0b727fea 418 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
98c9ea5c
JS
419 if (rc == MBX_NOT_FINISHED) {
420 err = 6;
92d7f7b0 421 goto fail_issue_reg_login;
98c9ea5c 422 }
92d7f7b0
JS
423
424 return 0;
425
426fail_issue_reg_login:
e47c9093
JS
427 /* decrement the reference count on ndlp just incremented
428 * for the failed mbox command.
429 */
92d7f7b0
JS
430 lpfc_nlp_put(ndlp);
431 mp = (struct lpfc_dmabuf *) mbox->context1;
432 lpfc_mbuf_free(phba, mp->virt, mp->phys);
433 kfree(mp);
434fail_free_mbox:
435 mempool_free(mbox, phba->mbox_mem_pool);
436
437fail:
438 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
e8b62011 439 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
98c9ea5c 440 "0249 Cannot issue Register Fabric login: Err %d\n", err);
92d7f7b0
JS
441 return -ENXIO;
442}
443
6fb120a7
JS
444/**
445 * lpfc_issue_reg_vfi - Register VFI for this vport's fabric login
446 * @vport: pointer to a host virtual N_Port data structure.
447 *
448 * This routine issues a REG_VFI mailbox for the vfi, vpi, fcfi triplet for
1b51197d 449 * the @vport. This mailbox command is necessary for SLI4 port only.
6fb120a7
JS
450 *
451 * Return code
452 * 0 - successfully issued REG_VFI for @vport
453 * A failure code otherwise.
454 **/
1b51197d 455int
6fb120a7
JS
456lpfc_issue_reg_vfi(struct lpfc_vport *vport)
457{
458 struct lpfc_hba *phba = vport->phba;
d6de08cc 459 LPFC_MBOXQ_t *mboxq = NULL;
6fb120a7 460 struct lpfc_nodelist *ndlp;
d6de08cc 461 struct lpfc_dmabuf *dmabuf = NULL;
6fb120a7
JS
462 int rc = 0;
463
939723a4 464 /* move forward in case of SLI4 FC port loopback test and pt2pt mode */
1b51197d 465 if ((phba->sli_rev == LPFC_SLI_REV4) &&
939723a4
JS
466 !(phba->link_flag & LS_LOOPBACK_MODE) &&
467 !(vport->fc_flag & FC_PT2PT)) {
1b51197d
JS
468 ndlp = lpfc_findnode_did(vport, Fabric_DID);
469 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
470 rc = -ENODEV;
471 goto fail;
472 }
6fb120a7
JS
473 }
474
d6de08cc
JS
475 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
476 if (!mboxq) {
6fb120a7
JS
477 rc = -ENOMEM;
478 goto fail;
479 }
6d368e53 480
d6de08cc
JS
481 /* Supply CSP's only if we are fabric connect or pt-to-pt connect */
482 if ((vport->fc_flag & FC_FABRIC) || (vport->fc_flag & FC_PT2PT)) {
483 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
484 if (!dmabuf) {
485 rc = -ENOMEM;
486 goto fail;
487 }
488 dmabuf->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &dmabuf->phys);
489 if (!dmabuf->virt) {
490 rc = -ENOMEM;
491 goto fail;
492 }
493 memcpy(dmabuf->virt, &phba->fc_fabparam,
494 sizeof(struct serv_parm));
6fb120a7 495 }
d6de08cc 496
6fb120a7 497 vport->port_state = LPFC_FABRIC_CFG_LINK;
d6de08cc
JS
498 if (dmabuf)
499 lpfc_reg_vfi(mboxq, vport, dmabuf->phys);
500 else
501 lpfc_reg_vfi(mboxq, vport, 0);
ae05ebe3 502
6fb120a7
JS
503 mboxq->mbox_cmpl = lpfc_mbx_cmpl_reg_vfi;
504 mboxq->vport = vport;
505 mboxq->context1 = dmabuf;
506 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
507 if (rc == MBX_NOT_FINISHED) {
508 rc = -ENXIO;
d6de08cc 509 goto fail;
6fb120a7
JS
510 }
511 return 0;
512
6fb120a7 513fail:
d6de08cc
JS
514 if (mboxq)
515 mempool_free(mboxq, phba->mbox_mem_pool);
516 if (dmabuf) {
517 if (dmabuf->virt)
518 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
519 kfree(dmabuf);
520 }
521
6fb120a7
JS
522 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
523 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
524 "0289 Issue Register VFI failed: Err %d\n", rc);
525 return rc;
526}
527
1b51197d
JS
528/**
529 * lpfc_issue_unreg_vfi - Unregister VFI for this vport's fabric login
530 * @vport: pointer to a host virtual N_Port data structure.
531 *
532 * This routine issues a UNREG_VFI mailbox with the vfi, vpi, fcfi triplet for
533 * the @vport. This mailbox command is necessary for SLI4 port only.
534 *
535 * Return code
536 * 0 - successfully issued REG_VFI for @vport
537 * A failure code otherwise.
538 **/
539int
540lpfc_issue_unreg_vfi(struct lpfc_vport *vport)
541{
542 struct lpfc_hba *phba = vport->phba;
543 struct Scsi_Host *shost;
544 LPFC_MBOXQ_t *mboxq;
545 int rc;
546
547 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
548 if (!mboxq) {
549 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
550 "2556 UNREG_VFI mbox allocation failed"
551 "HBA state x%x\n", phba->pport->port_state);
552 return -ENOMEM;
553 }
554
555 lpfc_unreg_vfi(mboxq, vport);
556 mboxq->vport = vport;
557 mboxq->mbox_cmpl = lpfc_unregister_vfi_cmpl;
558
559 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
560 if (rc == MBX_NOT_FINISHED) {
561 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
562 "2557 UNREG_VFI issue mbox failed rc x%x "
563 "HBA state x%x\n",
564 rc, phba->pport->port_state);
565 mempool_free(mboxq, phba->mbox_mem_pool);
566 return -EIO;
567 }
568
569 shost = lpfc_shost_from_vport(vport);
570 spin_lock_irq(shost->host_lock);
571 vport->fc_flag &= ~FC_VFI_REGISTERED;
572 spin_unlock_irq(shost->host_lock);
573 return 0;
574}
575
92494144
JS
576/**
577 * lpfc_check_clean_addr_bit - Check whether assigned FCID is clean.
578 * @vport: pointer to a host virtual N_Port data structure.
579 * @sp: pointer to service parameter data structure.
580 *
581 * This routine is called from FLOGI/FDISC completion handler functions.
582 * lpfc_check_clean_addr_bit return 1 when FCID/Fabric portname/ Fabric
583 * node nodename is changed in the completion service parameter else return
584 * 0. This function also set flag in the vport data structure to delay
585 * NP_Port discovery after the FLOGI/FDISC completion if Clean address bit
586 * in FLOGI/FDISC response is cleared and FCID/Fabric portname/ Fabric
587 * node nodename is changed in the completion service parameter.
588 *
589 * Return code
590 * 0 - FCID and Fabric Nodename and Fabric portname is not changed.
591 * 1 - FCID or Fabric Nodename or Fabric portname is changed.
592 *
593 **/
594static uint8_t
595lpfc_check_clean_addr_bit(struct lpfc_vport *vport,
596 struct serv_parm *sp)
597{
8eb8b960 598 struct lpfc_hba *phba = vport->phba;
92494144
JS
599 uint8_t fabric_param_changed = 0;
600 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
601
602 if ((vport->fc_prevDID != vport->fc_myDID) ||
603 memcmp(&vport->fabric_portname, &sp->portName,
604 sizeof(struct lpfc_name)) ||
605 memcmp(&vport->fabric_nodename, &sp->nodeName,
aeb3c817
JS
606 sizeof(struct lpfc_name)) ||
607 (vport->vport_flag & FAWWPN_PARAM_CHG)) {
92494144 608 fabric_param_changed = 1;
aeb3c817
JS
609 vport->vport_flag &= ~FAWWPN_PARAM_CHG;
610 }
92494144
JS
611 /*
612 * Word 1 Bit 31 in common service parameter is overloaded.
613 * Word 1 Bit 31 in FLOGI request is multiple NPort request
614 * Word 1 Bit 31 in FLOGI response is clean address bit
615 *
616 * If fabric parameter is changed and clean address bit is
617 * cleared delay nport discovery if
618 * - vport->fc_prevDID != 0 (not initial discovery) OR
619 * - lpfc_delay_discovery module parameter is set.
620 */
621 if (fabric_param_changed && !sp->cmn.clean_address_bit &&
8eb8b960 622 (vport->fc_prevDID || phba->cfg_delay_discovery)) {
92494144
JS
623 spin_lock_irq(shost->host_lock);
624 vport->fc_flag |= FC_DISC_DELAYED;
625 spin_unlock_irq(shost->host_lock);
626 }
627
628 return fabric_param_changed;
629}
630
631
e59058c4 632/**
3621a710 633 * lpfc_cmpl_els_flogi_fabric - Completion function for flogi to a fabric port
e59058c4
JS
634 * @vport: pointer to a host virtual N_Port data structure.
635 * @ndlp: pointer to a node-list data structure.
636 * @sp: pointer to service parameter data structure.
637 * @irsp: pointer to the IOCB within the lpfc response IOCB.
638 *
639 * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback
640 * function to handle the completion of a Fabric Login (FLOGI) into a fabric
641 * port in a fabric topology. It properly sets up the parameters to the @ndlp
642 * from the IOCB response. It also check the newly assigned N_Port ID to the
643 * @vport against the previously assigned N_Port ID. If it is different from
644 * the previously assigned Destination ID (DID), the lpfc_unreg_rpi() routine
645 * is invoked on all the remaining nodes with the @vport to unregister the
646 * Remote Port Indicators (RPIs). Finally, the lpfc_issue_fabric_reglogin()
647 * is invoked to register login to the fabric.
648 *
649 * Return code
650 * 0 - Success (currently, always return 0)
651 **/
92d7f7b0
JS
652static int
653lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
654 struct serv_parm *sp, IOCB_t *irsp)
655{
656 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
657 struct lpfc_hba *phba = vport->phba;
658 struct lpfc_nodelist *np;
659 struct lpfc_nodelist *next_np;
92494144 660 uint8_t fabric_param_changed;
92d7f7b0 661
2e0fef85
JS
662 spin_lock_irq(shost->host_lock);
663 vport->fc_flag |= FC_FABRIC;
664 spin_unlock_irq(shost->host_lock);
dea3101e
JB
665
666 phba->fc_edtov = be32_to_cpu(sp->cmn.e_d_tov);
667 if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */
668 phba->fc_edtov = (phba->fc_edtov + 999999) / 1000000;
669
12265f68 670 phba->fc_edtovResol = sp->cmn.edtovResolution;
dea3101e
JB
671 phba->fc_ratov = (be32_to_cpu(sp->cmn.w2.r_a_tov) + 999) / 1000;
672
76a95d75 673 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
2e0fef85
JS
674 spin_lock_irq(shost->host_lock);
675 vport->fc_flag |= FC_PUBLIC_LOOP;
676 spin_unlock_irq(shost->host_lock);
dea3101e
JB
677 }
678
2e0fef85 679 vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID;
dea3101e 680 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof(struct lpfc_name));
92d7f7b0 681 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof(struct lpfc_name));
dea3101e
JB
682 ndlp->nlp_class_sup = 0;
683 if (sp->cls1.classValid)
684 ndlp->nlp_class_sup |= FC_COS_CLASS1;
685 if (sp->cls2.classValid)
686 ndlp->nlp_class_sup |= FC_COS_CLASS2;
687 if (sp->cls3.classValid)
688 ndlp->nlp_class_sup |= FC_COS_CLASS3;
689 if (sp->cls4.classValid)
690 ndlp->nlp_class_sup |= FC_COS_CLASS4;
691 ndlp->nlp_maxframe = ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) |
692 sp->cmn.bbRcvSizeLsb;
92494144
JS
693
694 fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp);
4258e98e
JS
695 if (fabric_param_changed) {
696 /* Reset FDMI attribute masks based on config parameter */
8663cbbe
JS
697 if (phba->cfg_enable_SmartSAN ||
698 (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
4258e98e
JS
699 /* Setup appropriate attribute masks */
700 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
8663cbbe 701 if (phba->cfg_enable_SmartSAN)
4258e98e
JS
702 vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
703 else
704 vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
8663cbbe
JS
705 } else {
706 vport->fdmi_hba_mask = 0;
707 vport->fdmi_port_mask = 0;
4258e98e
JS
708 }
709
710 }
92494144
JS
711 memcpy(&vport->fabric_portname, &sp->portName,
712 sizeof(struct lpfc_name));
713 memcpy(&vport->fabric_nodename, &sp->nodeName,
714 sizeof(struct lpfc_name));
dea3101e
JB
715 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
716
92d7f7b0
JS
717 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) {
718 if (sp->cmn.response_multiple_NPort) {
e8b62011
JS
719 lpfc_printf_vlog(vport, KERN_WARNING,
720 LOG_ELS | LOG_VPORT,
721 "1816 FLOGI NPIV supported, "
722 "response data 0x%x\n",
723 sp->cmn.response_multiple_NPort);
1b51197d 724 spin_lock_irq(&phba->hbalock);
92d7f7b0 725 phba->link_flag |= LS_NPIV_FAB_SUPPORTED;
1b51197d 726 spin_unlock_irq(&phba->hbalock);
92d7f7b0
JS
727 } else {
728 /* Because we asked f/w for NPIV it still expects us
e8b62011
JS
729 to call reg_vnpid atleast for the physcial host */
730 lpfc_printf_vlog(vport, KERN_WARNING,
731 LOG_ELS | LOG_VPORT,
732 "1817 Fabric does not support NPIV "
733 "- configuring single port mode.\n");
1b51197d 734 spin_lock_irq(&phba->hbalock);
92d7f7b0 735 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED;
1b51197d 736 spin_unlock_irq(&phba->hbalock);
92d7f7b0
JS
737 }
738 }
dea3101e 739
ae05ebe3
JS
740 /*
741 * For FC we need to do some special processing because of the SLI
742 * Port's default settings of the Common Service Parameters.
743 */
d6de08cc
JS
744 if ((phba->sli_rev == LPFC_SLI_REV4) &&
745 (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC)) {
ae05ebe3 746 /* If physical FC port changed, unreg VFI and ALL VPIs / RPIs */
d6de08cc 747 if (fabric_param_changed)
ae05ebe3
JS
748 lpfc_unregister_fcf_prep(phba);
749
750 /* This should just update the VFI CSPs*/
751 if (vport->fc_flag & FC_VFI_REGISTERED)
752 lpfc_issue_reg_vfi(vport);
753 }
754
92494144 755 if (fabric_param_changed &&
92d7f7b0 756 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
dea3101e 757
92d7f7b0
JS
758 /* If our NportID changed, we need to ensure all
759 * remaining NPORTs get unreg_login'ed.
760 */
761 list_for_each_entry_safe(np, next_np,
762 &vport->fc_nodes, nlp_listp) {
d7c255b2 763 if (!NLP_CHK_NODE_ACT(np))
e47c9093 764 continue;
92d7f7b0
JS
765 if ((np->nlp_state != NLP_STE_NPR_NODE) ||
766 !(np->nlp_flag & NLP_NPR_ADISC))
767 continue;
768 spin_lock_irq(shost->host_lock);
769 np->nlp_flag &= ~NLP_NPR_ADISC;
770 spin_unlock_irq(shost->host_lock);
771 lpfc_unreg_rpi(vport, np);
772 }
78730cfe 773 lpfc_cleanup_pending_mbox(vport);
5af5eee7 774
5248a749 775 if (phba->sli_rev == LPFC_SLI_REV4) {
5af5eee7 776 lpfc_sli4_unreg_all_rpis(vport);
92d7f7b0 777 lpfc_mbx_unreg_vpi(vport);
09372820 778 spin_lock_irq(shost->host_lock);
ecfd03c6
JS
779 vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
780 spin_unlock_irq(shost->host_lock);
781 }
27aa1b73
JS
782
783 /*
784 * For SLI3 and SLI4, the VPI needs to be reregistered in
785 * response to this fabric parameter change event.
786 */
787 spin_lock_irq(shost->host_lock);
788 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
789 spin_unlock_irq(shost->host_lock);
38b92ef8
JS
790 } else if ((phba->sli_rev == LPFC_SLI_REV4) &&
791 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
792 /*
793 * Driver needs to re-reg VPI in order for f/w
794 * to update the MAC address.
795 */
9589b062 796 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
38b92ef8
JS
797 lpfc_register_new_vport(phba, vport, ndlp);
798 return 0;
92d7f7b0 799 }
dea3101e 800
6fb120a7
JS
801 if (phba->sli_rev < LPFC_SLI_REV4) {
802 lpfc_nlp_set_state(vport, ndlp, NLP_STE_REG_LOGIN_ISSUE);
803 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED &&
804 vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)
805 lpfc_register_new_vport(phba, vport, ndlp);
806 else
807 lpfc_issue_fabric_reglogin(vport);
808 } else {
809 ndlp->nlp_type |= NLP_FABRIC;
810 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
695a814e
JS
811 if ((!(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) &&
812 (vport->vpi_state & LPFC_VPI_REGISTERED)) {
6fb120a7
JS
813 lpfc_start_fdiscs(phba);
814 lpfc_do_scr_ns_plogi(phba, vport);
695a814e 815 } else if (vport->fc_flag & FC_VFI_REGISTERED)
ecfd03c6 816 lpfc_issue_init_vpi(vport);
1b51197d
JS
817 else {
818 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
819 "3135 Need register VFI: (x%x/%x)\n",
820 vport->fc_prevDID, vport->fc_myDID);
6fb120a7 821 lpfc_issue_reg_vfi(vport);
1b51197d 822 }
92d7f7b0 823 }
dea3101e 824 return 0;
dea3101e 825}
1b51197d 826
e59058c4 827/**
3621a710 828 * lpfc_cmpl_els_flogi_nport - Completion function for flogi to an N_Port
e59058c4
JS
829 * @vport: pointer to a host virtual N_Port data structure.
830 * @ndlp: pointer to a node-list data structure.
831 * @sp: pointer to service parameter data structure.
832 *
833 * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback
834 * function to handle the completion of a Fabric Login (FLOGI) into an N_Port
835 * in a point-to-point topology. First, the @vport's N_Port Name is compared
836 * with the received N_Port Name: if the @vport's N_Port Name is greater than
837 * the received N_Port Name lexicographically, this node shall assign local
838 * N_Port ID (PT2PT_LocalID: 1) and remote N_Port ID (PT2PT_RemoteID: 2) and
839 * will send out Port Login (PLOGI) with the N_Port IDs assigned. Otherwise,
840 * this node shall just wait for the remote node to issue PLOGI and assign
841 * N_Port IDs.
842 *
843 * Return code
844 * 0 - Success
845 * -ENXIO - Fail
846 **/
dea3101e 847static int
2e0fef85
JS
848lpfc_cmpl_els_flogi_nport(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
849 struct serv_parm *sp)
dea3101e 850{
2e0fef85
JS
851 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
852 struct lpfc_hba *phba = vport->phba;
dea3101e
JB
853 LPFC_MBOXQ_t *mbox;
854 int rc;
855
2e0fef85
JS
856 spin_lock_irq(shost->host_lock);
857 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
d6de08cc 858 vport->fc_flag |= FC_PT2PT;
2e0fef85 859 spin_unlock_irq(shost->host_lock);
dea3101e 860
d6de08cc
JS
861 /* If physical FC port changed, unreg VFI and ALL VPIs / RPIs */
862 if ((phba->sli_rev == LPFC_SLI_REV4) && phba->fc_topology_changed) {
863 lpfc_unregister_fcf_prep(phba);
864
865 spin_lock_irq(shost->host_lock);
866 vport->fc_flag &= ~FC_VFI_REGISTERED;
867 spin_unlock_irq(shost->host_lock);
868 phba->fc_topology_changed = 0;
869 }
870
2e0fef85 871 rc = memcmp(&vport->fc_portname, &sp->portName,
92d7f7b0 872 sizeof(vport->fc_portname));
2eb6862a 873
dea3101e
JB
874 if (rc >= 0) {
875 /* This side will initiate the PLOGI */
2e0fef85
JS
876 spin_lock_irq(shost->host_lock);
877 vport->fc_flag |= FC_PT2PT_PLOGI;
878 spin_unlock_irq(shost->host_lock);
dea3101e
JB
879
880 /*
d6de08cc
JS
881 * N_Port ID cannot be 0, set our Id to LocalID
882 * the other side will be RemoteID.
dea3101e
JB
883 */
884
885 /* not equal */
886 if (rc)
2e0fef85 887 vport->fc_myDID = PT2PT_LocalID;
dea3101e 888
e47c9093
JS
889 /* Decrement ndlp reference count indicating that ndlp can be
890 * safely released when other references to it are done.
891 */
329f9bc7 892 lpfc_nlp_put(ndlp);
dea3101e 893
2e0fef85 894 ndlp = lpfc_findnode_did(vport, PT2PT_RemoteID);
dea3101e
JB
895 if (!ndlp) {
896 /*
897 * Cannot find existing Fabric ndlp, so allocate a
898 * new one
899 */
9d3d340d 900 ndlp = lpfc_nlp_init(vport, PT2PT_RemoteID);
dea3101e
JB
901 if (!ndlp)
902 goto fail;
e47c9093
JS
903 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
904 ndlp = lpfc_enable_node(vport, ndlp,
905 NLP_STE_UNUSED_NODE);
906 if(!ndlp)
907 goto fail;
dea3101e
JB
908 }
909
910 memcpy(&ndlp->nlp_portname, &sp->portName,
2e0fef85 911 sizeof(struct lpfc_name));
dea3101e 912 memcpy(&ndlp->nlp_nodename, &sp->nodeName,
2e0fef85 913 sizeof(struct lpfc_name));
e47c9093 914 /* Set state will put ndlp onto node list if not already done */
2e0fef85
JS
915 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
916 spin_lock_irq(shost->host_lock);
dea3101e 917 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2e0fef85 918 spin_unlock_irq(shost->host_lock);
e47c9093
JS
919 } else
920 /* This side will wait for the PLOGI, decrement ndlp reference
921 * count indicating that ndlp can be released when other
922 * references to it are done.
923 */
329f9bc7 924 lpfc_nlp_put(ndlp);
dea3101e 925
09372820
JS
926 /* If we are pt2pt with another NPort, force NPIV off! */
927 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
928
d6de08cc
JS
929 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
930 if (!mbox)
931 goto fail;
e74c03c8 932
d6de08cc
JS
933 lpfc_config_link(phba, mbox);
934
935 mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
936 mbox->vport = vport;
937 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
938 if (rc == MBX_NOT_FINISHED) {
939 mempool_free(mbox, phba->mbox_mem_pool);
940 goto fail;
e74c03c8 941 }
dea3101e 942
dea3101e 943 return 0;
92d7f7b0 944fail:
dea3101e
JB
945 return -ENXIO;
946}
947
e59058c4 948/**
3621a710 949 * lpfc_cmpl_els_flogi - Completion callback function for flogi
e59058c4
JS
950 * @phba: pointer to lpfc hba data structure.
951 * @cmdiocb: pointer to lpfc command iocb data structure.
952 * @rspiocb: pointer to lpfc response iocb data structure.
953 *
954 * This routine is the top-level completion callback function for issuing
955 * a Fabric Login (FLOGI) command. If the response IOCB reported error,
956 * the lpfc_els_retry() routine shall be invoked to retry the FLOGI. If
957 * retry has been made (either immediately or delayed with lpfc_els_retry()
958 * returning 1), the command IOCB will be released and function returned.
959 * If the retry attempt has been given up (possibly reach the maximum
960 * number of retries), one additional decrement of ndlp reference shall be
961 * invoked before going out after releasing the command IOCB. This will
962 * actually release the remote node (Note, lpfc_els_free_iocb() will also
963 * invoke one decrement of ndlp reference count). If no error reported in
964 * the IOCB status, the command Port ID field is used to determine whether
965 * this is a point-to-point topology or a fabric topology: if the Port ID
966 * field is assigned, it is a fabric topology; otherwise, it is a
967 * point-to-point topology. The routine lpfc_cmpl_els_flogi_fabric() or
968 * lpfc_cmpl_els_flogi_nport() shall be invoked accordingly to handle the
969 * specific topology completion conditions.
970 **/
dea3101e 971static void
329f9bc7
JS
972lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
973 struct lpfc_iocbq *rspiocb)
dea3101e 974{
2e0fef85
JS
975 struct lpfc_vport *vport = cmdiocb->vport;
976 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e
JB
977 IOCB_t *irsp = &rspiocb->iocb;
978 struct lpfc_nodelist *ndlp = cmdiocb->context1;
979 struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp;
980 struct serv_parm *sp;
0c9ab6f5 981 uint16_t fcf_index;
dea3101e
JB
982 int rc;
983
984 /* Check to see if link went down during discovery */
2e0fef85 985 if (lpfc_els_chk_latt(vport)) {
fa4066b6
JS
986 /* One additional decrement on node reference count to
987 * trigger the release of the node
988 */
329f9bc7 989 lpfc_nlp_put(ndlp);
dea3101e
JB
990 goto out;
991 }
992
858c9f6c
JS
993 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
994 "FLOGI cmpl: status:x%x/x%x state:x%x",
995 irsp->ulpStatus, irsp->un.ulpWord[4],
996 vport->port_state);
997
dea3101e 998 if (irsp->ulpStatus) {
0c9ab6f5 999 /*
a93ff37a 1000 * In case of FIP mode, perform roundrobin FCF failover
0c9ab6f5
JS
1001 * due to new FCF discovery
1002 */
1003 if ((phba->hba_flag & HBA_FIP_SUPPORT) &&
80c17849
JS
1004 (phba->fcf.fcf_flag & FCF_DISCOVERY)) {
1005 if (phba->link_state < LPFC_LINK_UP)
1006 goto stop_rr_fcf_flogi;
1007 if ((phba->fcoe_cvl_eventtag_attn ==
1008 phba->fcoe_cvl_eventtag) &&
1009 (irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
e3d2b802
JS
1010 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
1011 IOERR_SLI_ABORTED))
80c17849
JS
1012 goto stop_rr_fcf_flogi;
1013 else
1014 phba->fcoe_cvl_eventtag_attn =
1015 phba->fcoe_cvl_eventtag;
0c9ab6f5 1016 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS,
a93ff37a
JS
1017 "2611 FLOGI failed on FCF (x%x), "
1018 "status:x%x/x%x, tmo:x%x, perform "
1019 "roundrobin FCF failover\n",
38b92ef8
JS
1020 phba->fcf.current_rec.fcf_indx,
1021 irsp->ulpStatus, irsp->un.ulpWord[4],
1022 irsp->ulpTimeout);
7d791df7
JS
1023 lpfc_sli4_set_fcf_flogi_fail(phba,
1024 phba->fcf.current_rec.fcf_indx);
0c9ab6f5 1025 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba);
a93ff37a
JS
1026 rc = lpfc_sli4_fcf_rr_next_proc(vport, fcf_index);
1027 if (rc)
1028 goto out;
0c9ab6f5
JS
1029 }
1030
80c17849 1031stop_rr_fcf_flogi:
38b92ef8
JS
1032 /* FLOGI failure */
1033 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
8fe5c165
JS
1034 "2858 FLOGI failure Status:x%x/x%x TMO:x%x "
1035 "Data x%x x%x\n",
38b92ef8 1036 irsp->ulpStatus, irsp->un.ulpWord[4],
8fe5c165
JS
1037 irsp->ulpTimeout, phba->hba_flag,
1038 phba->fcf.fcf_flag);
38b92ef8 1039
dea3101e 1040 /* Check for retry */
2e0fef85 1041 if (lpfc_els_retry(phba, cmdiocb, rspiocb))
dea3101e 1042 goto out;
2e0fef85 1043
76a95d75
JS
1044 /* FLOGI failure */
1045 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1046 "0100 FLOGI failure Status:x%x/x%x TMO:x%x\n",
1047 irsp->ulpStatus, irsp->un.ulpWord[4],
1048 irsp->ulpTimeout);
1049
ae9e28f3
JS
1050
1051 /* If this is not a loop open failure, bail out */
1052 if (!(irsp->ulpStatus == IOSTAT_LOCAL_REJECT &&
1053 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
1054 IOERR_LOOP_OPEN_FAILURE)))
1055 goto flogifail;
1056
dea3101e 1057 /* FLOGI failed, so there is no fabric */
2e0fef85
JS
1058 spin_lock_irq(shost->host_lock);
1059 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
1060 spin_unlock_irq(shost->host_lock);
dea3101e 1061
329f9bc7 1062 /* If private loop, then allow max outstanding els to be
dea3101e
JB
1063 * LPFC_MAX_DISC_THREADS (32). Scanning in the case of no
1064 * alpa map would take too long otherwise.
1065 */
1b51197d 1066 if (phba->alpa_map[0] == 0)
3de2a653 1067 vport->cfg_discovery_threads = LPFC_MAX_DISC_THREADS;
ff78d8f9
JS
1068 if ((phba->sli_rev == LPFC_SLI_REV4) &&
1069 (!(vport->fc_flag & FC_VFI_REGISTERED) ||
e74c03c8
JS
1070 (vport->fc_prevDID != vport->fc_myDID) ||
1071 phba->fc_topology_changed)) {
1072 if (vport->fc_flag & FC_VFI_REGISTERED) {
1073 if (phba->fc_topology_changed) {
1074 lpfc_unregister_fcf_prep(phba);
1075 spin_lock_irq(shost->host_lock);
1076 vport->fc_flag &= ~FC_VFI_REGISTERED;
1077 spin_unlock_irq(shost->host_lock);
1078 phba->fc_topology_changed = 0;
1079 } else {
1080 lpfc_sli4_unreg_all_rpis(vport);
1081 }
1082 }
342b59ca
JS
1083
1084 /* Do not register VFI if the driver aborted FLOGI */
1085 if (!lpfc_error_lost_link(irsp))
1086 lpfc_issue_reg_vfi(vport);
ff78d8f9
JS
1087 lpfc_nlp_put(ndlp);
1088 goto out;
dea3101e 1089 }
dea3101e
JB
1090 goto flogifail;
1091 }
695a814e
JS
1092 spin_lock_irq(shost->host_lock);
1093 vport->fc_flag &= ~FC_VPORT_CVL_RCVD;
4b40c59e 1094 vport->fc_flag &= ~FC_VPORT_LOGO_RCVD;
695a814e 1095 spin_unlock_irq(shost->host_lock);
dea3101e
JB
1096
1097 /*
1098 * The FLogI succeeded. Sync the data for the CPU before
1099 * accessing it.
1100 */
1101 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
a2fc4aef
JS
1102 if (!prsp)
1103 goto out;
dea3101e
JB
1104 sp = prsp->virt + sizeof(uint32_t);
1105
1106 /* FLOGI completes successfully */
e8b62011 1107 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
88f43a08
JS
1108 "0101 FLOGI completes successfully, I/O tag:x%x, "
1109 "Data: x%x x%x x%x x%x x%x x%x\n", cmdiocb->iotag,
e8b62011 1110 irsp->un.ulpWord[4], sp->cmn.e_d_tov,
e74c03c8
JS
1111 sp->cmn.w2.r_a_tov, sp->cmn.edtovResolution,
1112 vport->port_state, vport->fc_flag);
dea3101e 1113
2e0fef85 1114 if (vport->port_state == LPFC_FLOGI) {
dea3101e
JB
1115 /*
1116 * If Common Service Parameters indicate Nport
1117 * we are point to point, if Fport we are Fabric.
1118 */
1119 if (sp->cmn.fPort)
2e0fef85 1120 rc = lpfc_cmpl_els_flogi_fabric(vport, ndlp, sp, irsp);
76a95d75 1121 else if (!(phba->hba_flag & HBA_FCOE_MODE))
2e0fef85 1122 rc = lpfc_cmpl_els_flogi_nport(vport, ndlp, sp);
dbb6b3ab
JS
1123 else {
1124 lpfc_printf_vlog(vport, KERN_ERR,
1125 LOG_FIP | LOG_ELS,
1126 "2831 FLOGI response with cleared Fabric "
1127 "bit fcf_index 0x%x "
1128 "Switch Name %02x%02x%02x%02x%02x%02x%02x%02x "
1129 "Fabric Name "
1130 "%02x%02x%02x%02x%02x%02x%02x%02x\n",
1131 phba->fcf.current_rec.fcf_indx,
1132 phba->fcf.current_rec.switch_name[0],
1133 phba->fcf.current_rec.switch_name[1],
1134 phba->fcf.current_rec.switch_name[2],
1135 phba->fcf.current_rec.switch_name[3],
1136 phba->fcf.current_rec.switch_name[4],
1137 phba->fcf.current_rec.switch_name[5],
1138 phba->fcf.current_rec.switch_name[6],
1139 phba->fcf.current_rec.switch_name[7],
1140 phba->fcf.current_rec.fabric_name[0],
1141 phba->fcf.current_rec.fabric_name[1],
1142 phba->fcf.current_rec.fabric_name[2],
1143 phba->fcf.current_rec.fabric_name[3],
1144 phba->fcf.current_rec.fabric_name[4],
1145 phba->fcf.current_rec.fabric_name[5],
1146 phba->fcf.current_rec.fabric_name[6],
1147 phba->fcf.current_rec.fabric_name[7]);
1148 lpfc_nlp_put(ndlp);
1149 spin_lock_irq(&phba->hbalock);
1150 phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
a93ff37a 1151 phba->hba_flag &= ~(FCF_RR_INPROG | HBA_DEVLOSS_TMO);
dbb6b3ab
JS
1152 spin_unlock_irq(&phba->hbalock);
1153 goto out;
1154 }
0c9ab6f5
JS
1155 if (!rc) {
1156 /* Mark the FCF discovery process done */
999d813f
JS
1157 if (phba->hba_flag & HBA_FIP_SUPPORT)
1158 lpfc_printf_vlog(vport, KERN_INFO, LOG_FIP |
1159 LOG_ELS,
a93ff37a
JS
1160 "2769 FLOGI to FCF (x%x) "
1161 "completed successfully\n",
999d813f 1162 phba->fcf.current_rec.fcf_indx);
0c9ab6f5
JS
1163 spin_lock_irq(&phba->hbalock);
1164 phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
a93ff37a 1165 phba->hba_flag &= ~(FCF_RR_INPROG | HBA_DEVLOSS_TMO);
0c9ab6f5 1166 spin_unlock_irq(&phba->hbalock);
dea3101e 1167 goto out;
0c9ab6f5 1168 }
dea3101e
JB
1169 }
1170
1171flogifail:
8fe5c165
JS
1172 spin_lock_irq(&phba->hbalock);
1173 phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
1174 spin_unlock_irq(&phba->hbalock);
d6de08cc 1175
329f9bc7 1176 lpfc_nlp_put(ndlp);
dea3101e 1177
858c9f6c 1178 if (!lpfc_error_lost_link(irsp)) {
dea3101e 1179 /* FLOGI failed, so just use loop map to make discovery list */
2e0fef85 1180 lpfc_disc_list_loopmap(vport);
dea3101e
JB
1181
1182 /* Start discovery */
2e0fef85 1183 lpfc_disc_start(vport);
87af33fe 1184 } else if (((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) ||
e3d2b802
JS
1185 (((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) !=
1186 IOERR_SLI_ABORTED) &&
1187 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) !=
1188 IOERR_SLI_DOWN))) &&
87af33fe
JS
1189 (phba->link_state != LPFC_CLEAR_LA)) {
1190 /* If FLOGI failed enable link interrupt. */
1191 lpfc_issue_clear_la(phba, vport);
dea3101e 1192 }
dea3101e
JB
1193out:
1194 lpfc_els_free_iocb(phba, cmdiocb);
1195}
1196
e59058c4 1197/**
3621a710 1198 * lpfc_issue_els_flogi - Issue an flogi iocb command for a vport
e59058c4
JS
1199 * @vport: pointer to a host virtual N_Port data structure.
1200 * @ndlp: pointer to a node-list data structure.
1201 * @retry: number of retries to the command IOCB.
1202 *
1203 * This routine issues a Fabric Login (FLOGI) Request ELS command
1204 * for a @vport. The initiator service parameters are put into the payload
1205 * of the FLOGI Request IOCB and the top-level callback function pointer
1206 * to lpfc_cmpl_els_flogi() routine is put to the IOCB completion callback
1207 * function field. The lpfc_issue_fabric_iocb routine is invoked to send
1208 * out FLOGI ELS command with one outstanding fabric IOCB at a time.
1209 *
1210 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
1211 * will be incremented by 1 for holding the ndlp and the reference to ndlp
1212 * will be stored into the context1 field of the IOCB for the completion
1213 * callback function to the FLOGI ELS command.
1214 *
1215 * Return code
1216 * 0 - successfully issued flogi iocb for @vport
1217 * 1 - failed to issue flogi iocb for @vport
1218 **/
dea3101e 1219static int
2e0fef85 1220lpfc_issue_els_flogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
dea3101e
JB
1221 uint8_t retry)
1222{
2e0fef85 1223 struct lpfc_hba *phba = vport->phba;
dea3101e
JB
1224 struct serv_parm *sp;
1225 IOCB_t *icmd;
1226 struct lpfc_iocbq *elsiocb;
dea3101e
JB
1227 uint8_t *pcmd;
1228 uint16_t cmdsize;
1229 uint32_t tmo;
1230 int rc;
1231
92d7f7b0 1232 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm));
2e0fef85
JS
1233 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
1234 ndlp->nlp_DID, ELS_CMD_FLOGI);
92d7f7b0 1235
488d1469 1236 if (!elsiocb)
c9f8735b 1237 return 1;
dea3101e
JB
1238
1239 icmd = &elsiocb->iocb;
1240 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
1241
1242 /* For FLOGI request, remainder of payload is service parameters */
1243 *((uint32_t *) (pcmd)) = ELS_CMD_FLOGI;
92d7f7b0
JS
1244 pcmd += sizeof(uint32_t);
1245 memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm));
dea3101e
JB
1246 sp = (struct serv_parm *) pcmd;
1247
1248 /* Setup CSPs accordingly for Fabric */
1249 sp->cmn.e_d_tov = 0;
1250 sp->cmn.w2.r_a_tov = 0;
df9e1b59 1251 sp->cmn.virtual_fabric_support = 0;
dea3101e 1252 sp->cls1.classValid = 0;
dea3101e
JB
1253 if (sp->cmn.fcphLow < FC_PH3)
1254 sp->cmn.fcphLow = FC_PH3;
1255 if (sp->cmn.fcphHigh < FC_PH3)
1256 sp->cmn.fcphHigh = FC_PH3;
1257
c31098ce
JS
1258 if (phba->sli_rev == LPFC_SLI_REV4) {
1259 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
1260 LPFC_SLI_INTF_IF_TYPE_0) {
1261 elsiocb->iocb.ulpCt_h = ((SLI4_CT_FCFI >> 1) & 1);
1262 elsiocb->iocb.ulpCt_l = (SLI4_CT_FCFI & 1);
1263 /* FLOGI needs to be 3 for WQE FCFI */
1264 /* Set the fcfi to the fcfi we registered with */
1265 elsiocb->iocb.ulpContext = phba->fcf.fcfi;
1266 }
0f37887e
JS
1267 /* Can't do SLI4 class2 without support sequence coalescing */
1268 sp->cls2.classValid = 0;
1269 sp->cls2.seqDelivery = 0;
5248a749 1270 } else {
0f37887e
JS
1271 /* Historical, setting sequential-delivery bit for SLI3 */
1272 sp->cls2.seqDelivery = (sp->cls2.classValid) ? 1 : 0;
1273 sp->cls3.seqDelivery = (sp->cls3.classValid) ? 1 : 0;
5248a749
JS
1274 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) {
1275 sp->cmn.request_multiple_Nport = 1;
1276 /* For FLOGI, Let FLOGI rsp set the NPortID for VPI 0 */
1277 icmd->ulpCt_h = 1;
1278 icmd->ulpCt_l = 0;
1279 } else
1280 sp->cmn.request_multiple_Nport = 0;
92d7f7b0
JS
1281 }
1282
76a95d75 1283 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) {
858c9f6c
JS
1284 icmd->un.elsreq64.myID = 0;
1285 icmd->un.elsreq64.fl = 1;
1286 }
1287
dea3101e
JB
1288 tmo = phba->fc_ratov;
1289 phba->fc_ratov = LPFC_DISC_FLOGI_TMO;
2e0fef85 1290 lpfc_set_disctmo(vport);
dea3101e
JB
1291 phba->fc_ratov = tmo;
1292
1293 phba->fc_stat.elsXmitFLOGI++;
1294 elsiocb->iocb_cmpl = lpfc_cmpl_els_flogi;
858c9f6c
JS
1295
1296 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1297 "Issue FLOGI: opt:x%x",
1298 phba->sli3_options, 0, 0);
1299
92d7f7b0 1300 rc = lpfc_issue_fabric_iocb(phba, elsiocb);
dea3101e
JB
1301 if (rc == IOCB_ERROR) {
1302 lpfc_els_free_iocb(phba, elsiocb);
c9f8735b 1303 return 1;
dea3101e 1304 }
c9f8735b 1305 return 0;
dea3101e
JB
1306}
1307
e59058c4 1308/**
3621a710 1309 * lpfc_els_abort_flogi - Abort all outstanding flogi iocbs
e59058c4
JS
1310 * @phba: pointer to lpfc hba data structure.
1311 *
1312 * This routine aborts all the outstanding Fabric Login (FLOGI) IOCBs
1313 * with a @phba. This routine walks all the outstanding IOCBs on the txcmplq
1314 * list and issues an abort IOCB commond on each outstanding IOCB that
1315 * contains a active Fabric_DID ndlp. Note that this function is to issue
1316 * the abort IOCB command on all the outstanding IOCBs, thus when this
1317 * function returns, it does not guarantee all the IOCBs are actually aborted.
1318 *
1319 * Return code
3ad2f3fb 1320 * 0 - Successfully issued abort iocb on all outstanding flogis (Always 0)
e59058c4 1321 **/
dea3101e 1322int
2e0fef85 1323lpfc_els_abort_flogi(struct lpfc_hba *phba)
dea3101e
JB
1324{
1325 struct lpfc_sli_ring *pring;
1326 struct lpfc_iocbq *iocb, *next_iocb;
1327 struct lpfc_nodelist *ndlp;
1328 IOCB_t *icmd;
1329
1330 /* Abort outstanding I/O on NPort <nlp_DID> */
1331 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
e8b62011
JS
1332 "0201 Abort outstanding I/O on NPort x%x\n",
1333 Fabric_DID);
dea3101e 1334
895427bd 1335 pring = lpfc_phba_elsring(phba);
dea3101e
JB
1336
1337 /*
1338 * Check the txcmplq for an iocb that matches the nport the driver is
1339 * searching for.
1340 */
2e0fef85 1341 spin_lock_irq(&phba->hbalock);
dea3101e
JB
1342 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
1343 icmd = &iocb->iocb;
1b51197d 1344 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR) {
dea3101e 1345 ndlp = (struct lpfc_nodelist *)(iocb->context1);
58da1ffb
JS
1346 if (ndlp && NLP_CHK_NODE_ACT(ndlp) &&
1347 (ndlp->nlp_DID == Fabric_DID))
07951076 1348 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
dea3101e
JB
1349 }
1350 }
2e0fef85 1351 spin_unlock_irq(&phba->hbalock);
dea3101e
JB
1352
1353 return 0;
1354}
1355
e59058c4 1356/**
3621a710 1357 * lpfc_initial_flogi - Issue an initial fabric login for a vport
e59058c4
JS
1358 * @vport: pointer to a host virtual N_Port data structure.
1359 *
1360 * This routine issues an initial Fabric Login (FLOGI) for the @vport
1361 * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from
1362 * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and
1363 * put it into the @vport's ndlp list. If an inactive ndlp found on the list,
1364 * it will just be enabled and made active. The lpfc_issue_els_flogi() routine
1365 * is then invoked with the @vport and the ndlp to perform the FLOGI for the
1366 * @vport.
1367 *
1368 * Return code
1369 * 0 - failed to issue initial flogi for @vport
1370 * 1 - successfully issued initial flogi for @vport
1371 **/
dea3101e 1372int
2e0fef85 1373lpfc_initial_flogi(struct lpfc_vport *vport)
dea3101e
JB
1374{
1375 struct lpfc_nodelist *ndlp;
1376
98c9ea5c
JS
1377 vport->port_state = LPFC_FLOGI;
1378 lpfc_set_disctmo(vport);
1379
c9f8735b 1380 /* First look for the Fabric ndlp */
2e0fef85 1381 ndlp = lpfc_findnode_did(vport, Fabric_DID);
c9f8735b 1382 if (!ndlp) {
dea3101e 1383 /* Cannot find existing Fabric ndlp, so allocate a new one */
9d3d340d 1384 ndlp = lpfc_nlp_init(vport, Fabric_DID);
c9f8735b
JW
1385 if (!ndlp)
1386 return 0;
6fb120a7
JS
1387 /* Set the node type */
1388 ndlp->nlp_type |= NLP_FABRIC;
e47c9093
JS
1389 /* Put ndlp onto node list */
1390 lpfc_enqueue_node(vport, ndlp);
1391 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
1392 /* re-setup ndlp without removing from node list */
1393 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
1394 if (!ndlp)
1395 return 0;
dea3101e 1396 }
87af33fe 1397
5ac6b303 1398 if (lpfc_issue_els_flogi(vport, ndlp, 0)) {
fa4066b6
JS
1399 /* This decrement of reference count to node shall kick off
1400 * the release of the node.
1401 */
329f9bc7 1402 lpfc_nlp_put(ndlp);
5ac6b303
JS
1403 return 0;
1404 }
c9f8735b 1405 return 1;
dea3101e
JB
1406}
1407
e59058c4 1408/**
3621a710 1409 * lpfc_initial_fdisc - Issue an initial fabric discovery for a vport
e59058c4
JS
1410 * @vport: pointer to a host virtual N_Port data structure.
1411 *
1412 * This routine issues an initial Fabric Discover (FDISC) for the @vport
1413 * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from
1414 * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and
1415 * put it into the @vport's ndlp list. If an inactive ndlp found on the list,
1416 * it will just be enabled and made active. The lpfc_issue_els_fdisc() routine
1417 * is then invoked with the @vport and the ndlp to perform the FDISC for the
1418 * @vport.
1419 *
1420 * Return code
1421 * 0 - failed to issue initial fdisc for @vport
1422 * 1 - successfully issued initial fdisc for @vport
1423 **/
92d7f7b0
JS
1424int
1425lpfc_initial_fdisc(struct lpfc_vport *vport)
1426{
92d7f7b0
JS
1427 struct lpfc_nodelist *ndlp;
1428
1429 /* First look for the Fabric ndlp */
1430 ndlp = lpfc_findnode_did(vport, Fabric_DID);
1431 if (!ndlp) {
1432 /* Cannot find existing Fabric ndlp, so allocate a new one */
9d3d340d 1433 ndlp = lpfc_nlp_init(vport, Fabric_DID);
92d7f7b0
JS
1434 if (!ndlp)
1435 return 0;
e47c9093
JS
1436 /* Put ndlp onto node list */
1437 lpfc_enqueue_node(vport, ndlp);
1438 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
1439 /* re-setup ndlp without removing from node list */
1440 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
1441 if (!ndlp)
1442 return 0;
92d7f7b0 1443 }
e47c9093 1444
92d7f7b0 1445 if (lpfc_issue_els_fdisc(vport, ndlp, 0)) {
fa4066b6
JS
1446 /* decrement node reference count to trigger the release of
1447 * the node.
1448 */
92d7f7b0 1449 lpfc_nlp_put(ndlp);
fa4066b6 1450 return 0;
92d7f7b0
JS
1451 }
1452 return 1;
1453}
87af33fe 1454
e59058c4 1455/**
3621a710 1456 * lpfc_more_plogi - Check and issue remaining plogis for a vport
e59058c4
JS
1457 * @vport: pointer to a host virtual N_Port data structure.
1458 *
1459 * This routine checks whether there are more remaining Port Logins
1460 * (PLOGI) to be issued for the @vport. If so, it will invoke the routine
1461 * lpfc_els_disc_plogi() to go through the Node Port Recovery (NPR) nodes
1462 * to issue ELS PLOGIs up to the configured discover threads with the
1463 * @vport (@vport->cfg_discovery_threads). The function also decrement
1464 * the @vport's num_disc_node by 1 if it is not already 0.
1465 **/
87af33fe 1466void
2e0fef85 1467lpfc_more_plogi(struct lpfc_vport *vport)
dea3101e 1468{
2e0fef85
JS
1469 if (vport->num_disc_nodes)
1470 vport->num_disc_nodes--;
dea3101e
JB
1471
1472 /* Continue discovery with <num_disc_nodes> PLOGIs to go */
e8b62011
JS
1473 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
1474 "0232 Continue discovery with %d PLOGIs to go "
1475 "Data: x%x x%x x%x\n",
1476 vport->num_disc_nodes, vport->fc_plogi_cnt,
1477 vport->fc_flag, vport->port_state);
dea3101e 1478 /* Check to see if there are more PLOGIs to be sent */
2e0fef85
JS
1479 if (vport->fc_flag & FC_NLP_MORE)
1480 /* go thru NPR nodes and issue any remaining ELS PLOGIs */
db6f1c2f 1481 lpfc_els_disc_plogi(vport);
2e0fef85 1482
dea3101e
JB
1483 return;
1484}
1485
e59058c4 1486/**
3621a710 1487 * lpfc_plogi_confirm_nport - Confirm pologi wwpn matches stored ndlp
e59058c4
JS
1488 * @phba: pointer to lpfc hba data structure.
1489 * @prsp: pointer to response IOCB payload.
1490 * @ndlp: pointer to a node-list data structure.
1491 *
1492 * This routine checks and indicates whether the WWPN of an N_Port, retrieved
1493 * from a PLOGI, matches the WWPN that is stored in the @ndlp for that N_POrt.
1494 * The following cases are considered N_Port confirmed:
1495 * 1) The N_Port is a Fabric ndlp; 2) The @ndlp is on vport list and matches
1496 * the WWPN of the N_Port logged into; 3) The @ndlp is not on vport list but
1497 * it does not have WWPN assigned either. If the WWPN is confirmed, the
1498 * pointer to the @ndlp will be returned. If the WWPN is not confirmed:
1499 * 1) if there is a node on vport list other than the @ndlp with the same
1500 * WWPN of the N_Port PLOGI logged into, the lpfc_unreg_rpi() will be invoked
1501 * on that node to release the RPI associated with the node; 2) if there is
1502 * no node found on vport list with the same WWPN of the N_Port PLOGI logged
1503 * into, a new node shall be allocated (or activated). In either case, the
1504 * parameters of the @ndlp shall be copied to the new_ndlp, the @ndlp shall
1505 * be released and the new_ndlp shall be put on to the vport node list and
1506 * its pointer returned as the confirmed node.
1507 *
1508 * Note that before the @ndlp got "released", the keepDID from not-matching
1509 * or inactive "new_ndlp" on the vport node list is assigned to the nlp_DID
1510 * of the @ndlp. This is because the release of @ndlp is actually to put it
1511 * into an inactive state on the vport node list and the vport node list
1512 * management algorithm does not allow two node with a same DID.
1513 *
1514 * Return code
1515 * pointer to the PLOGI N_Port @ndlp
1516 **/
488d1469 1517static struct lpfc_nodelist *
92d7f7b0 1518lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp,
488d1469
JS
1519 struct lpfc_nodelist *ndlp)
1520{
a0f2d3ef 1521 struct lpfc_vport *vport = ndlp->vport;
953ceeda 1522 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
488d1469 1523 struct lpfc_nodelist *new_ndlp;
0ff10d46
JS
1524 struct lpfc_rport_data *rdata;
1525 struct fc_rport *rport;
488d1469 1526 struct serv_parm *sp;
92d7f7b0 1527 uint8_t name[sizeof(struct lpfc_name)];
e5abba4c 1528 uint32_t rc, keepDID = 0, keep_nlp_flag = 0;
953ceeda 1529 uint16_t keep_nlp_state;
38b92ef8
JS
1530 int put_node;
1531 int put_rport;
cff261f6 1532 unsigned long *active_rrqs_xri_bitmap = NULL;
488d1469 1533
2fb9bd8b
JS
1534 /* Fabric nodes can have the same WWPN so we don't bother searching
1535 * by WWPN. Just return the ndlp that was given to us.
1536 */
1537 if (ndlp->nlp_type & NLP_FABRIC)
1538 return ndlp;
1539
92d7f7b0 1540 sp = (struct serv_parm *) ((uint8_t *) prsp + sizeof(uint32_t));
685f0bf7 1541 memset(name, 0, sizeof(struct lpfc_name));
488d1469 1542
685f0bf7 1543 /* Now we find out if the NPort we are logging into, matches the WWPN
488d1469
JS
1544 * we have for that ndlp. If not, we have some work to do.
1545 */
2e0fef85 1546 new_ndlp = lpfc_findnode_wwpn(vport, &sp->portName);
488d1469 1547
e47c9093 1548 if (new_ndlp == ndlp && NLP_CHK_NODE_ACT(new_ndlp))
488d1469 1549 return ndlp;
cff261f6
JS
1550 if (phba->sli_rev == LPFC_SLI_REV4) {
1551 active_rrqs_xri_bitmap = mempool_alloc(phba->active_rrq_pool,
1552 GFP_KERNEL);
1553 if (active_rrqs_xri_bitmap)
1554 memset(active_rrqs_xri_bitmap, 0,
1555 phba->cfg_rrq_xri_bitmap_sz);
1556 }
488d1469 1557
34f5ad8b
JS
1558 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1559 "3178 PLOGI confirm: ndlp %p x%x: new_ndlp %p\n",
1560 ndlp, ndlp->nlp_DID, new_ndlp);
1561
488d1469 1562 if (!new_ndlp) {
2e0fef85
JS
1563 rc = memcmp(&ndlp->nlp_portname, name,
1564 sizeof(struct lpfc_name));
cff261f6
JS
1565 if (!rc) {
1566 if (active_rrqs_xri_bitmap)
1567 mempool_free(active_rrqs_xri_bitmap,
1568 phba->active_rrq_pool);
92795650 1569 return ndlp;
cff261f6 1570 }
9d3d340d 1571 new_ndlp = lpfc_nlp_init(vport, ndlp->nlp_DID);
cff261f6
JS
1572 if (!new_ndlp) {
1573 if (active_rrqs_xri_bitmap)
1574 mempool_free(active_rrqs_xri_bitmap,
1575 phba->active_rrq_pool);
488d1469 1576 return ndlp;
cff261f6 1577 }
e47c9093 1578 } else if (!NLP_CHK_NODE_ACT(new_ndlp)) {
58da1ffb
JS
1579 rc = memcmp(&ndlp->nlp_portname, name,
1580 sizeof(struct lpfc_name));
cff261f6
JS
1581 if (!rc) {
1582 if (active_rrqs_xri_bitmap)
1583 mempool_free(active_rrqs_xri_bitmap,
1584 phba->active_rrq_pool);
58da1ffb 1585 return ndlp;
cff261f6 1586 }
e47c9093
JS
1587 new_ndlp = lpfc_enable_node(vport, new_ndlp,
1588 NLP_STE_UNUSED_NODE);
cff261f6
JS
1589 if (!new_ndlp) {
1590 if (active_rrqs_xri_bitmap)
1591 mempool_free(active_rrqs_xri_bitmap,
1592 phba->active_rrq_pool);
e47c9093 1593 return ndlp;
cff261f6 1594 }
58da1ffb 1595 keepDID = new_ndlp->nlp_DID;
cff261f6
JS
1596 if ((phba->sli_rev == LPFC_SLI_REV4) && active_rrqs_xri_bitmap)
1597 memcpy(active_rrqs_xri_bitmap,
1598 new_ndlp->active_rrqs_xri_bitmap,
1599 phba->cfg_rrq_xri_bitmap_sz);
19ca7609 1600 } else {
58da1ffb 1601 keepDID = new_ndlp->nlp_DID;
cff261f6
JS
1602 if (phba->sli_rev == LPFC_SLI_REV4 &&
1603 active_rrqs_xri_bitmap)
1604 memcpy(active_rrqs_xri_bitmap,
1605 new_ndlp->active_rrqs_xri_bitmap,
1606 phba->cfg_rrq_xri_bitmap_sz);
19ca7609 1607 }
488d1469 1608
2e0fef85 1609 lpfc_unreg_rpi(vport, new_ndlp);
488d1469 1610 new_ndlp->nlp_DID = ndlp->nlp_DID;
92795650 1611 new_ndlp->nlp_prev_state = ndlp->nlp_prev_state;
19ca7609 1612 if (phba->sli_rev == LPFC_SLI_REV4)
cff261f6
JS
1613 memcpy(new_ndlp->active_rrqs_xri_bitmap,
1614 ndlp->active_rrqs_xri_bitmap,
1615 phba->cfg_rrq_xri_bitmap_sz);
0ff10d46 1616
953ceeda 1617 spin_lock_irq(shost->host_lock);
e5abba4c
JS
1618 keep_nlp_flag = new_ndlp->nlp_flag;
1619 new_ndlp->nlp_flag = ndlp->nlp_flag;
1620 ndlp->nlp_flag = keep_nlp_flag;
953ceeda 1621 spin_unlock_irq(shost->host_lock);
0ff10d46 1622
953ceeda
JS
1623 /* Set nlp_states accordingly */
1624 keep_nlp_state = new_ndlp->nlp_state;
2e0fef85 1625 lpfc_nlp_set_state(vport, new_ndlp, ndlp->nlp_state);
488d1469 1626
2e0fef85 1627 /* Move this back to NPR state */
87af33fe
JS
1628 if (memcmp(&ndlp->nlp_portname, name, sizeof(struct lpfc_name)) == 0) {
1629 /* The new_ndlp is replacing ndlp totally, so we need
1630 * to put ndlp on UNUSED list and try to free it.
1631 */
34f5ad8b
JS
1632 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1633 "3179 PLOGI confirm NEW: %x %x\n",
1634 new_ndlp->nlp_DID, keepDID);
0ff10d46
JS
1635
1636 /* Fix up the rport accordingly */
1637 rport = ndlp->rport;
1638 if (rport) {
1639 rdata = rport->dd_data;
1640 if (rdata->pnode == ndlp) {
466e840b 1641 /* break the link before dropping the ref */
0ff10d46 1642 ndlp->rport = NULL;
466e840b 1643 lpfc_nlp_put(ndlp);
0ff10d46
JS
1644 rdata->pnode = lpfc_nlp_get(new_ndlp);
1645 new_ndlp->rport = rport;
1646 }
1647 new_ndlp->nlp_type = ndlp->nlp_type;
1648 }
58da1ffb
JS
1649 /* We shall actually free the ndlp with both nlp_DID and
1650 * nlp_portname fields equals 0 to avoid any ndlp on the
1651 * nodelist never to be used.
1652 */
1653 if (ndlp->nlp_DID == 0) {
1654 spin_lock_irq(&phba->ndlp_lock);
1655 NLP_SET_FREE_REQ(ndlp);
1656 spin_unlock_irq(&phba->ndlp_lock);
1657 }
0ff10d46 1658
58da1ffb
JS
1659 /* Two ndlps cannot have the same did on the nodelist */
1660 ndlp->nlp_DID = keepDID;
cff261f6
JS
1661 if (phba->sli_rev == LPFC_SLI_REV4 &&
1662 active_rrqs_xri_bitmap)
1663 memcpy(ndlp->active_rrqs_xri_bitmap,
1664 active_rrqs_xri_bitmap,
1665 phba->cfg_rrq_xri_bitmap_sz);
e5abba4c
JS
1666
1667 if (!NLP_CHK_NODE_ACT(ndlp))
1668 lpfc_drop_node(vport, ndlp);
87af33fe 1669 }
92795650 1670 else {
34f5ad8b
JS
1671 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1672 "3180 PLOGI confirm SWAP: %x %x\n",
1673 new_ndlp->nlp_DID, keepDID);
1674
2e0fef85 1675 lpfc_unreg_rpi(vport, ndlp);
34f5ad8b 1676
58da1ffb
JS
1677 /* Two ndlps cannot have the same did */
1678 ndlp->nlp_DID = keepDID;
cff261f6
JS
1679 if (phba->sli_rev == LPFC_SLI_REV4 &&
1680 active_rrqs_xri_bitmap)
1681 memcpy(ndlp->active_rrqs_xri_bitmap,
1682 active_rrqs_xri_bitmap,
1683 phba->cfg_rrq_xri_bitmap_sz);
34f5ad8b 1684
953ceeda
JS
1685 /* Since we are switching over to the new_ndlp,
1686 * reset the old ndlp state
34f5ad8b
JS
1687 */
1688 if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) ||
1689 (ndlp->nlp_state == NLP_STE_MAPPED_NODE))
953ceeda
JS
1690 keep_nlp_state = NLP_STE_NPR_NODE;
1691 lpfc_nlp_set_state(vport, ndlp, keep_nlp_state);
34f5ad8b 1692
38b92ef8
JS
1693 /* Fix up the rport accordingly */
1694 rport = ndlp->rport;
1695 if (rport) {
1696 rdata = rport->dd_data;
1697 put_node = rdata->pnode != NULL;
1698 put_rport = ndlp->rport != NULL;
1699 rdata->pnode = NULL;
1700 ndlp->rport = NULL;
1701 if (put_node)
1702 lpfc_nlp_put(ndlp);
1703 if (put_rport)
1704 put_device(&rport->dev);
1705 }
92795650 1706 }
cff261f6
JS
1707 if (phba->sli_rev == LPFC_SLI_REV4 &&
1708 active_rrqs_xri_bitmap)
1709 mempool_free(active_rrqs_xri_bitmap,
1710 phba->active_rrq_pool);
488d1469
JS
1711 return new_ndlp;
1712}
1713
e59058c4 1714/**
3621a710 1715 * lpfc_end_rscn - Check and handle more rscn for a vport
e59058c4
JS
1716 * @vport: pointer to a host virtual N_Port data structure.
1717 *
1718 * This routine checks whether more Registration State Change
1719 * Notifications (RSCNs) came in while the discovery state machine was in
1720 * the FC_RSCN_MODE. If so, the lpfc_els_handle_rscn() routine will be
1721 * invoked to handle the additional RSCNs for the @vport. Otherwise, the
1722 * FC_RSCN_MODE bit will be cleared with the @vport to mark as the end of
1723 * handling the RSCNs.
1724 **/
87af33fe
JS
1725void
1726lpfc_end_rscn(struct lpfc_vport *vport)
1727{
1728 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1729
1730 if (vport->fc_flag & FC_RSCN_MODE) {
1731 /*
1732 * Check to see if more RSCNs came in while we were
1733 * processing this one.
1734 */
1735 if (vport->fc_rscn_id_cnt ||
1736 (vport->fc_flag & FC_RSCN_DISCOVERY) != 0)
1737 lpfc_els_handle_rscn(vport);
1738 else {
1739 spin_lock_irq(shost->host_lock);
1740 vport->fc_flag &= ~FC_RSCN_MODE;
1741 spin_unlock_irq(shost->host_lock);
1742 }
1743 }
1744}
1745
19ca7609
JS
1746/**
1747 * lpfc_cmpl_els_rrq - Completion handled for els RRQs.
1748 * @phba: pointer to lpfc hba data structure.
1749 * @cmdiocb: pointer to lpfc command iocb data structure.
1750 * @rspiocb: pointer to lpfc response iocb data structure.
1751 *
1752 * This routine will call the clear rrq function to free the rrq and
1753 * clear the xri's bit in the ndlp's xri_bitmap. If the ndlp does not
1754 * exist then the clear_rrq is still called because the rrq needs to
1755 * be freed.
1756 **/
1757
1758static void
1759lpfc_cmpl_els_rrq(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
1760 struct lpfc_iocbq *rspiocb)
1761{
1762 struct lpfc_vport *vport = cmdiocb->vport;
1763 IOCB_t *irsp;
1764 struct lpfc_nodelist *ndlp;
1765 struct lpfc_node_rrq *rrq;
1766
1767 /* we pass cmdiocb to state machine which needs rspiocb as well */
1768 rrq = cmdiocb->context_un.rrq;
1769 cmdiocb->context_un.rsp_iocb = rspiocb;
1770
1771 irsp = &rspiocb->iocb;
1772 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1773 "RRQ cmpl: status:x%x/x%x did:x%x",
1774 irsp->ulpStatus, irsp->un.ulpWord[4],
1775 irsp->un.elsreq64.remoteID);
1776
1777 ndlp = lpfc_findnode_did(vport, irsp->un.elsreq64.remoteID);
1778 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || ndlp != rrq->ndlp) {
1779 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1780 "2882 RRQ completes to NPort x%x "
1781 "with no ndlp. Data: x%x x%x x%x\n",
1782 irsp->un.elsreq64.remoteID,
1783 irsp->ulpStatus, irsp->un.ulpWord[4],
1784 irsp->ulpIoTag);
1785 goto out;
1786 }
1787
1788 /* rrq completes to NPort <nlp_DID> */
1789 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1790 "2880 RRQ completes to NPort x%x "
1791 "Data: x%x x%x x%x x%x x%x\n",
1792 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
1793 irsp->ulpTimeout, rrq->xritag, rrq->rxid);
1794
1795 if (irsp->ulpStatus) {
1796 /* Check for retry */
1797 /* RRQ failed Don't print the vport to vport rjts */
1798 if (irsp->ulpStatus != IOSTAT_LS_RJT ||
1799 (((irsp->un.ulpWord[4]) >> 16 != LSRJT_INVALID_CMD) &&
1800 ((irsp->un.ulpWord[4]) >> 16 != LSRJT_UNABLE_TPC)) ||
1801 (phba)->pport->cfg_log_verbose & LOG_ELS)
1802 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1803 "2881 RRQ failure DID:%06X Status:x%x/x%x\n",
1804 ndlp->nlp_DID, irsp->ulpStatus,
1805 irsp->un.ulpWord[4]);
1806 }
1807out:
1808 if (rrq)
1809 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
1810 lpfc_els_free_iocb(phba, cmdiocb);
1811 return;
1812}
e59058c4 1813/**
3621a710 1814 * lpfc_cmpl_els_plogi - Completion callback function for plogi
e59058c4
JS
1815 * @phba: pointer to lpfc hba data structure.
1816 * @cmdiocb: pointer to lpfc command iocb data structure.
1817 * @rspiocb: pointer to lpfc response iocb data structure.
1818 *
1819 * This routine is the completion callback function for issuing the Port
1820 * Login (PLOGI) command. For PLOGI completion, there must be an active
1821 * ndlp on the vport node list that matches the remote node ID from the
25985edc 1822 * PLOGI response IOCB. If such ndlp does not exist, the PLOGI is simply
e59058c4
JS
1823 * ignored and command IOCB released. The PLOGI response IOCB status is
1824 * checked for error conditons. If there is error status reported, PLOGI
1825 * retry shall be attempted by invoking the lpfc_els_retry() routine.
1826 * Otherwise, the lpfc_plogi_confirm_nport() routine shall be invoked on
1827 * the ndlp and the NLP_EVT_CMPL_PLOGI state to the Discover State Machine
1828 * (DSM) is set for this PLOGI completion. Finally, it checks whether
1829 * there are additional N_Port nodes with the vport that need to perform
1830 * PLOGI. If so, the lpfc_more_plogi() routine is invoked to issue addition
1831 * PLOGIs.
1832 **/
dea3101e 1833static void
2e0fef85
JS
1834lpfc_cmpl_els_plogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
1835 struct lpfc_iocbq *rspiocb)
dea3101e 1836{
2e0fef85
JS
1837 struct lpfc_vport *vport = cmdiocb->vport;
1838 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e 1839 IOCB_t *irsp;
dea3101e 1840 struct lpfc_nodelist *ndlp;
92795650 1841 struct lpfc_dmabuf *prsp;
eb016566 1842 int disc, rc;
dea3101e 1843
dea3101e
JB
1844 /* we pass cmdiocb to state machine which needs rspiocb as well */
1845 cmdiocb->context_un.rsp_iocb = rspiocb;
1846
1847 irsp = &rspiocb->iocb;
858c9f6c
JS
1848 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1849 "PLOGI cmpl: status:x%x/x%x did:x%x",
1850 irsp->ulpStatus, irsp->un.ulpWord[4],
1851 irsp->un.elsreq64.remoteID);
1852
2e0fef85 1853 ndlp = lpfc_findnode_did(vport, irsp->un.elsreq64.remoteID);
e47c9093 1854 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
e8b62011
JS
1855 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1856 "0136 PLOGI completes to NPort x%x "
1857 "with no ndlp. Data: x%x x%x x%x\n",
1858 irsp->un.elsreq64.remoteID,
1859 irsp->ulpStatus, irsp->un.ulpWord[4],
1860 irsp->ulpIoTag);
488d1469 1861 goto out;
ed957684 1862 }
dea3101e
JB
1863
1864 /* Since ndlp can be freed in the disc state machine, note if this node
1865 * is being used during discovery.
1866 */
2e0fef85 1867 spin_lock_irq(shost->host_lock);
dea3101e 1868 disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC);
488d1469 1869 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
2e0fef85 1870 spin_unlock_irq(shost->host_lock);
dea3101e
JB
1871 rc = 0;
1872
1873 /* PLOGI completes to NPort <nlp_DID> */
e8b62011 1874 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
a0f2d3ef 1875 "0102 PLOGI completes to NPort x%06x "
e8b62011 1876 "Data: x%x x%x x%x x%x x%x\n",
a0f2d3ef
JS
1877 ndlp->nlp_DID, ndlp->nlp_fc4_type,
1878 irsp->ulpStatus, irsp->un.ulpWord[4],
1879 disc, vport->num_disc_nodes);
1880
dea3101e 1881 /* Check to see if link went down during discovery */
2e0fef85
JS
1882 if (lpfc_els_chk_latt(vport)) {
1883 spin_lock_irq(shost->host_lock);
dea3101e 1884 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2e0fef85 1885 spin_unlock_irq(shost->host_lock);
dea3101e
JB
1886 goto out;
1887 }
1888
dea3101e
JB
1889 if (irsp->ulpStatus) {
1890 /* Check for retry */
1891 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
1892 /* ELS command is being retried */
1893 if (disc) {
2e0fef85 1894 spin_lock_irq(shost->host_lock);
dea3101e 1895 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2e0fef85 1896 spin_unlock_irq(shost->host_lock);
dea3101e
JB
1897 }
1898 goto out;
1899 }
2a9bf3d0
JS
1900 /* PLOGI failed Don't print the vport to vport rjts */
1901 if (irsp->ulpStatus != IOSTAT_LS_RJT ||
1902 (((irsp->un.ulpWord[4]) >> 16 != LSRJT_INVALID_CMD) &&
1903 ((irsp->un.ulpWord[4]) >> 16 != LSRJT_UNABLE_TPC)) ||
1904 (phba)->pport->cfg_log_verbose & LOG_ELS)
1905 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
e40a02c1
JS
1906 "2753 PLOGI failure DID:%06X Status:x%x/x%x\n",
1907 ndlp->nlp_DID, irsp->ulpStatus,
1908 irsp->un.ulpWord[4]);
dea3101e 1909 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
e47c9093 1910 if (lpfc_error_lost_link(irsp))
c9f8735b 1911 rc = NLP_STE_FREED_NODE;
e47c9093 1912 else
2e0fef85 1913 rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb,
92d7f7b0 1914 NLP_EVT_CMPL_PLOGI);
dea3101e
JB
1915 } else {
1916 /* Good status, call state machine */
92795650 1917 prsp = list_entry(((struct lpfc_dmabuf *)
92d7f7b0
JS
1918 cmdiocb->context2)->list.next,
1919 struct lpfc_dmabuf, list);
1920 ndlp = lpfc_plogi_confirm_nport(phba, prsp->virt, ndlp);
2e0fef85 1921 rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb,
92d7f7b0 1922 NLP_EVT_CMPL_PLOGI);
dea3101e
JB
1923 }
1924
2e0fef85 1925 if (disc && vport->num_disc_nodes) {
dea3101e 1926 /* Check to see if there are more PLOGIs to be sent */
2e0fef85 1927 lpfc_more_plogi(vport);
dea3101e 1928
2e0fef85
JS
1929 if (vport->num_disc_nodes == 0) {
1930 spin_lock_irq(shost->host_lock);
1931 vport->fc_flag &= ~FC_NDISC_ACTIVE;
1932 spin_unlock_irq(shost->host_lock);
dea3101e 1933
2e0fef85 1934 lpfc_can_disctmo(vport);
87af33fe 1935 lpfc_end_rscn(vport);
dea3101e
JB
1936 }
1937 }
1938
1939out:
1940 lpfc_els_free_iocb(phba, cmdiocb);
1941 return;
1942}
1943
e59058c4 1944/**
3621a710 1945 * lpfc_issue_els_plogi - Issue an plogi iocb command for a vport
e59058c4
JS
1946 * @vport: pointer to a host virtual N_Port data structure.
1947 * @did: destination port identifier.
1948 * @retry: number of retries to the command IOCB.
1949 *
1950 * This routine issues a Port Login (PLOGI) command to a remote N_Port
1951 * (with the @did) for a @vport. Before issuing a PLOGI to a remote N_Port,
1952 * the ndlp with the remote N_Port DID must exist on the @vport's ndlp list.
1953 * This routine constructs the proper feilds of the PLOGI IOCB and invokes
1954 * the lpfc_sli_issue_iocb() routine to send out PLOGI ELS command.
1955 *
1956 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
1957 * will be incremented by 1 for holding the ndlp and the reference to ndlp
1958 * will be stored into the context1 field of the IOCB for the completion
1959 * callback function to the PLOGI ELS command.
1960 *
1961 * Return code
1962 * 0 - Successfully issued a plogi for @vport
1963 * 1 - failed to issue a plogi for @vport
1964 **/
dea3101e 1965int
2e0fef85 1966lpfc_issue_els_plogi(struct lpfc_vport *vport, uint32_t did, uint8_t retry)
dea3101e 1967{
2e0fef85 1968 struct lpfc_hba *phba = vport->phba;
dea3101e 1969 struct serv_parm *sp;
98c9ea5c 1970 struct lpfc_nodelist *ndlp;
dea3101e 1971 struct lpfc_iocbq *elsiocb;
dea3101e
JB
1972 uint8_t *pcmd;
1973 uint16_t cmdsize;
92d7f7b0 1974 int ret;
dea3101e 1975
98c9ea5c 1976 ndlp = lpfc_findnode_did(vport, did);
e47c9093
JS
1977 if (ndlp && !NLP_CHK_NODE_ACT(ndlp))
1978 ndlp = NULL;
98c9ea5c 1979
e47c9093 1980 /* If ndlp is not NULL, we will bump the reference count on it */
92d7f7b0 1981 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm));
98c9ea5c 1982 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did,
2e0fef85 1983 ELS_CMD_PLOGI);
c9f8735b
JW
1984 if (!elsiocb)
1985 return 1;
dea3101e 1986
dea3101e
JB
1987 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
1988
1989 /* For PLOGI request, remainder of payload is service parameters */
1990 *((uint32_t *) (pcmd)) = ELS_CMD_PLOGI;
92d7f7b0
JS
1991 pcmd += sizeof(uint32_t);
1992 memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm));
dea3101e
JB
1993 sp = (struct serv_parm *) pcmd;
1994
5ac6b303
JS
1995 /*
1996 * If we are a N-port connected to a Fabric, fix-up paramm's so logins
1997 * to device on remote loops work.
1998 */
1999 if ((vport->fc_flag & FC_FABRIC) && !(vport->fc_flag & FC_PUBLIC_LOOP))
2000 sp->cmn.altBbCredit = 1;
2001
dea3101e
JB
2002 if (sp->cmn.fcphLow < FC_PH_4_3)
2003 sp->cmn.fcphLow = FC_PH_4_3;
2004
2005 if (sp->cmn.fcphHigh < FC_PH3)
2006 sp->cmn.fcphHigh = FC_PH3;
2007
e0165f20 2008 sp->cmn.valid_vendor_ver_level = 0;
8c258641 2009 memset(sp->un.vendorVersion, 0, sizeof(sp->un.vendorVersion));
e0165f20 2010
858c9f6c
JS
2011 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2012 "Issue PLOGI: did:x%x",
2013 did, 0, 0);
2014
8c258641
JS
2015 /* If our firmware supports this feature, convey that
2016 * information to the target using the vendor specific field.
2017 */
2018 if (phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) {
2019 sp->cmn.valid_vendor_ver_level = 1;
2020 sp->un.vv.vid = cpu_to_be32(LPFC_VV_EMLX_ID);
2021 sp->un.vv.flags = cpu_to_be32(LPFC_VV_SUPPRESS_RSP);
2022 }
2023
dea3101e
JB
2024 phba->fc_stat.elsXmitPLOGI++;
2025 elsiocb->iocb_cmpl = lpfc_cmpl_els_plogi;
3772a991 2026 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
92d7f7b0
JS
2027
2028 if (ret == IOCB_ERROR) {
dea3101e 2029 lpfc_els_free_iocb(phba, elsiocb);
c9f8735b 2030 return 1;
dea3101e 2031 }
c9f8735b 2032 return 0;
dea3101e
JB
2033}
2034
e59058c4 2035/**
3621a710 2036 * lpfc_cmpl_els_prli - Completion callback function for prli
e59058c4
JS
2037 * @phba: pointer to lpfc hba data structure.
2038 * @cmdiocb: pointer to lpfc command iocb data structure.
2039 * @rspiocb: pointer to lpfc response iocb data structure.
2040 *
2041 * This routine is the completion callback function for a Process Login
2042 * (PRLI) ELS command. The PRLI response IOCB status is checked for error
2043 * status. If there is error status reported, PRLI retry shall be attempted
2044 * by invoking the lpfc_els_retry() routine. Otherwise, the state
2045 * NLP_EVT_CMPL_PRLI is sent to the Discover State Machine (DSM) for this
2046 * ndlp to mark the PRLI completion.
2047 **/
dea3101e 2048static void
2e0fef85
JS
2049lpfc_cmpl_els_prli(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2050 struct lpfc_iocbq *rspiocb)
dea3101e 2051{
2e0fef85
JS
2052 struct lpfc_vport *vport = cmdiocb->vport;
2053 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e 2054 IOCB_t *irsp;
dea3101e
JB
2055 struct lpfc_nodelist *ndlp;
2056
dea3101e
JB
2057 /* we pass cmdiocb to state machine which needs rspiocb as well */
2058 cmdiocb->context_un.rsp_iocb = rspiocb;
2059
2060 irsp = &(rspiocb->iocb);
2061 ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
2e0fef85 2062 spin_lock_irq(shost->host_lock);
dea3101e 2063 ndlp->nlp_flag &= ~NLP_PRLI_SND;
2e0fef85 2064 spin_unlock_irq(shost->host_lock);
dea3101e 2065
858c9f6c
JS
2066 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2067 "PRLI cmpl: status:x%x/x%x did:x%x",
2068 irsp->ulpStatus, irsp->un.ulpWord[4],
2069 ndlp->nlp_DID);
a0f2d3ef
JS
2070
2071 /* Ddriver supports multiple FC4 types. Counters matter. */
2072 vport->fc_prli_sent--;
2073
dea3101e 2074 /* PRLI completes to NPort <nlp_DID> */
e8b62011 2075 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
a0f2d3ef 2076 "0103 PRLI completes to NPort x%06x "
e8b62011
JS
2077 "Data: x%x x%x x%x x%x\n",
2078 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
a0f2d3ef 2079 vport->num_disc_nodes, ndlp->fc4_prli_sent);
dea3101e 2080
dea3101e 2081 /* Check to see if link went down during discovery */
2e0fef85 2082 if (lpfc_els_chk_latt(vport))
dea3101e
JB
2083 goto out;
2084
2085 if (irsp->ulpStatus) {
2086 /* Check for retry */
3120046a 2087 ndlp->fc4_prli_sent--;
dea3101e
JB
2088 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
2089 /* ELS command is being retried */
2090 goto out;
2091 }
3120046a 2092
dea3101e 2093 /* PRLI failed */
e40a02c1 2094 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3120046a
JS
2095 "2754 PRLI failure DID:%06X Status:x%x/x%x, "
2096 "data: x%x\n",
e40a02c1 2097 ndlp->nlp_DID, irsp->ulpStatus,
3120046a
JS
2098 irsp->un.ulpWord[4], ndlp->fc4_prli_sent);
2099
dea3101e 2100 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
e47c9093 2101 if (lpfc_error_lost_link(irsp))
dea3101e 2102 goto out;
e47c9093 2103 else
2e0fef85 2104 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
92d7f7b0 2105 NLP_EVT_CMPL_PRLI);
e47c9093 2106 } else
a0f2d3ef
JS
2107 /* Good status, call state machine. However, if another
2108 * PRLI is outstanding, don't call the state machine
2109 * because final disposition to Mapped or Unmapped is
2110 * completed there.
2111 */
2e0fef85 2112 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
92d7f7b0 2113 NLP_EVT_CMPL_PRLI);
a0f2d3ef 2114
dea3101e
JB
2115out:
2116 lpfc_els_free_iocb(phba, cmdiocb);
2117 return;
2118}
2119
e59058c4 2120/**
3621a710 2121 * lpfc_issue_els_prli - Issue a prli iocb command for a vport
e59058c4
JS
2122 * @vport: pointer to a host virtual N_Port data structure.
2123 * @ndlp: pointer to a node-list data structure.
2124 * @retry: number of retries to the command IOCB.
2125 *
2126 * This routine issues a Process Login (PRLI) ELS command for the
2127 * @vport. The PRLI service parameters are set up in the payload of the
2128 * PRLI Request command and the pointer to lpfc_cmpl_els_prli() routine
2129 * is put to the IOCB completion callback func field before invoking the
2130 * routine lpfc_sli_issue_iocb() to send out PRLI command.
2131 *
2132 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2133 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2134 * will be stored into the context1 field of the IOCB for the completion
2135 * callback function to the PRLI ELS command.
2136 *
2137 * Return code
2138 * 0 - successfully issued prli iocb command for @vport
2139 * 1 - failed to issue prli iocb command for @vport
2140 **/
dea3101e 2141int
2e0fef85 2142lpfc_issue_els_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
dea3101e
JB
2143 uint8_t retry)
2144{
2e0fef85
JS
2145 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2146 struct lpfc_hba *phba = vport->phba;
dea3101e 2147 PRLI *npr;
a0f2d3ef 2148 struct lpfc_nvme_prli *npr_nvme;
dea3101e 2149 struct lpfc_iocbq *elsiocb;
dea3101e
JB
2150 uint8_t *pcmd;
2151 uint16_t cmdsize;
a0f2d3ef
JS
2152 u32 local_nlp_type, elscmd;
2153
2154 local_nlp_type = ndlp->nlp_fc4_type;
2155
2156 send_next_prli:
2157 if (local_nlp_type & NLP_FC4_FCP) {
2158 /* Payload is 4 + 16 = 20 x14 bytes. */
2159 cmdsize = (sizeof(uint32_t) + sizeof(PRLI));
2160 elscmd = ELS_CMD_PRLI;
2161 } else if (local_nlp_type & NLP_FC4_NVME) {
2162 /* Payload is 4 + 20 = 24 x18 bytes. */
2163 cmdsize = (sizeof(uint32_t) + sizeof(struct lpfc_nvme_prli));
2164 elscmd = ELS_CMD_NVMEPRLI;
2165 } else {
2166 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2167 "3083 Unknown FC_TYPE x%x ndlp x%06x\n",
2168 ndlp->nlp_fc4_type, ndlp->nlp_DID);
2169 return 1;
2170 }
2e0fef85 2171 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
a0f2d3ef 2172 ndlp->nlp_DID, elscmd);
488d1469 2173 if (!elsiocb)
c9f8735b 2174 return 1;
dea3101e 2175
dea3101e
JB
2176 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2177
2178 /* For PRLI request, remainder of payload is service parameters */
a0f2d3ef 2179 memset(pcmd, 0, cmdsize);
dea3101e 2180
a0f2d3ef
JS
2181 if (local_nlp_type & NLP_FC4_FCP) {
2182 /* Remainder of payload is FCP PRLI parameter page.
2183 * Note: this data structure is defined as
2184 * BE/LE in the structure definition so no
2185 * byte swap call is made.
2186 */
2187 *((uint32_t *)(pcmd)) = ELS_CMD_PRLI;
2188 pcmd += sizeof(uint32_t);
2189 npr = (PRLI *)pcmd;
dea3101e 2190
a0f2d3ef
JS
2191 /*
2192 * If our firmware version is 3.20 or later,
2193 * set the following bits for FC-TAPE support.
2194 */
2195 if (phba->vpd.rev.feaLevelHigh >= 0x02) {
2196 npr->ConfmComplAllowed = 1;
2197 npr->Retry = 1;
2198 npr->TaskRetryIdReq = 1;
2199 }
2200 npr->estabImagePair = 1;
2201 npr->readXferRdyDis = 1;
2202 if (vport->cfg_first_burst_size)
2203 npr->writeXferRdyDis = 1;
2204
2205 /* For FCP support */
2206 npr->prliType = PRLI_FCP_TYPE;
2207 npr->initiatorFunc = 1;
2208 elsiocb->iocb_flag |= LPFC_PRLI_FCP_REQ;
2209
2210 /* Remove FCP type - processed. */
2211 local_nlp_type &= ~NLP_FC4_FCP;
2212 } else if (local_nlp_type & NLP_FC4_NVME) {
2213 /* Remainder of payload is NVME PRLI parameter page.
2214 * This data structure is the newer definition that
2215 * uses bf macros so a byte swap is required.
2216 */
2217 *((uint32_t *)(pcmd)) = ELS_CMD_NVMEPRLI;
2218 pcmd += sizeof(uint32_t);
2219 npr_nvme = (struct lpfc_nvme_prli *)pcmd;
2220 bf_set(prli_type_code, npr_nvme, PRLI_NVME_TYPE);
2221 bf_set(prli_estabImagePair, npr_nvme, 0); /* Should be 0 */
2222
2223 /* Only initiators request first burst. */
2224 if ((phba->cfg_nvme_enable_fb) &&
2225 !phba->nvmet_support)
2226 bf_set(prli_fba, npr_nvme, 1);
2227
8c258641
JS
2228 if (phba->nvmet_support) {
2229 bf_set(prli_tgt, npr_nvme, 1);
2230 bf_set(prli_disc, npr_nvme, 1);
2231
2232 } else {
2233 bf_set(prli_init, npr_nvme, 1);
2234 }
a0f2d3ef
JS
2235 npr_nvme->word1 = cpu_to_be32(npr_nvme->word1);
2236 npr_nvme->word4 = cpu_to_be32(npr_nvme->word4);
2237 elsiocb->iocb_flag |= LPFC_PRLI_NVME_REQ;
2238
2239 /* Remove NVME type - processed. */
2240 local_nlp_type &= ~NLP_FC4_NVME;
2241 }
dea3101e 2242
858c9f6c
JS
2243 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2244 "Issue PRLI: did:x%x",
2245 ndlp->nlp_DID, 0, 0);
2246
dea3101e
JB
2247 phba->fc_stat.elsXmitPRLI++;
2248 elsiocb->iocb_cmpl = lpfc_cmpl_els_prli;
2e0fef85 2249 spin_lock_irq(shost->host_lock);
dea3101e 2250 ndlp->nlp_flag |= NLP_PRLI_SND;
2e0fef85 2251 spin_unlock_irq(shost->host_lock);
3772a991
JS
2252 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
2253 IOCB_ERROR) {
2e0fef85 2254 spin_lock_irq(shost->host_lock);
dea3101e 2255 ndlp->nlp_flag &= ~NLP_PRLI_SND;
2e0fef85 2256 spin_unlock_irq(shost->host_lock);
dea3101e 2257 lpfc_els_free_iocb(phba, elsiocb);
c9f8735b 2258 return 1;
dea3101e 2259 }
a0f2d3ef
JS
2260
2261 /* The vport counters are used for lpfc_scan_finished, but
2262 * the ndlp is used to track outstanding PRLIs for different
2263 * FC4 types.
2264 */
2e0fef85 2265 vport->fc_prli_sent++;
a0f2d3ef
JS
2266 ndlp->fc4_prli_sent++;
2267
2268 /* The driver supports 2 FC4 types. Make sure
2269 * a PRLI is issued for all types before exiting.
2270 */
2271 if (local_nlp_type & (NLP_FC4_FCP | NLP_FC4_NVME))
2272 goto send_next_prli;
2273
c9f8735b 2274 return 0;
dea3101e
JB
2275}
2276
90160e01 2277/**
3621a710 2278 * lpfc_rscn_disc - Perform rscn discovery for a vport
90160e01
JS
2279 * @vport: pointer to a host virtual N_Port data structure.
2280 *
2281 * This routine performs Registration State Change Notification (RSCN)
2282 * discovery for a @vport. If the @vport's node port recovery count is not
2283 * zero, it will invoke the lpfc_els_disc_plogi() to perform PLOGI for all
2284 * the nodes that need recovery. If none of the PLOGI were needed through
2285 * the lpfc_els_disc_plogi() routine, the lpfc_end_rscn() routine shall be
2286 * invoked to check and handle possible more RSCN came in during the period
2287 * of processing the current ones.
2288 **/
2289static void
2290lpfc_rscn_disc(struct lpfc_vport *vport)
2291{
2292 lpfc_can_disctmo(vport);
2293
2294 /* RSCN discovery */
2295 /* go thru NPR nodes and issue ELS PLOGIs */
2296 if (vport->fc_npr_cnt)
2297 if (lpfc_els_disc_plogi(vport))
2298 return;
2299
2300 lpfc_end_rscn(vport);
2301}
2302
2303/**
3621a710 2304 * lpfc_adisc_done - Complete the adisc phase of discovery
90160e01
JS
2305 * @vport: pointer to lpfc_vport hba data structure that finished all ADISCs.
2306 *
2307 * This function is called when the final ADISC is completed during discovery.
2308 * This function handles clearing link attention or issuing reg_vpi depending
2309 * on whether npiv is enabled. This function also kicks off the PLOGI phase of
2310 * discovery.
2311 * This function is called with no locks held.
2312 **/
2313static void
2314lpfc_adisc_done(struct lpfc_vport *vport)
2315{
2316 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2317 struct lpfc_hba *phba = vport->phba;
2318
2319 /*
2320 * For NPIV, cmpl_reg_vpi will set port_state to READY,
2321 * and continue discovery.
2322 */
2323 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
6fb120a7
JS
2324 !(vport->fc_flag & FC_RSCN_MODE) &&
2325 (phba->sli_rev < LPFC_SLI_REV4)) {
d454c91f
JS
2326 /* The ADISCs are complete. Doesn't matter if they
2327 * succeeded or failed because the ADISC completion
2328 * routine guarantees to call the state machine and
2329 * the RPI is either unregistered (failed ADISC response)
2330 * or the RPI is still valid and the node is marked
2331 * mapped for a target. The exchanges should be in the
2332 * correct state. This code is specific to SLI3.
2333 */
2334 lpfc_issue_clear_la(phba, vport);
90160e01
JS
2335 lpfc_issue_reg_vpi(phba, vport);
2336 return;
2337 }
2338 /*
2339 * For SLI2, we need to set port_state to READY
2340 * and continue discovery.
2341 */
2342 if (vport->port_state < LPFC_VPORT_READY) {
2343 /* If we get here, there is nothing to ADISC */
85c0f177 2344 lpfc_issue_clear_la(phba, vport);
90160e01
JS
2345 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) {
2346 vport->num_disc_nodes = 0;
2347 /* go thru NPR list, issue ELS PLOGIs */
2348 if (vport->fc_npr_cnt)
2349 lpfc_els_disc_plogi(vport);
2350 if (!vport->num_disc_nodes) {
2351 spin_lock_irq(shost->host_lock);
2352 vport->fc_flag &= ~FC_NDISC_ACTIVE;
2353 spin_unlock_irq(shost->host_lock);
2354 lpfc_can_disctmo(vport);
2355 lpfc_end_rscn(vport);
2356 }
2357 }
2358 vport->port_state = LPFC_VPORT_READY;
2359 } else
2360 lpfc_rscn_disc(vport);
2361}
2362
e59058c4 2363/**
3621a710 2364 * lpfc_more_adisc - Issue more adisc as needed
e59058c4
JS
2365 * @vport: pointer to a host virtual N_Port data structure.
2366 *
2367 * This routine determines whether there are more ndlps on a @vport
2368 * node list need to have Address Discover (ADISC) issued. If so, it will
2369 * invoke the lpfc_els_disc_adisc() routine to issue ADISC on the @vport's
2370 * remaining nodes which need to have ADISC sent.
2371 **/
0ff10d46 2372void
2e0fef85 2373lpfc_more_adisc(struct lpfc_vport *vport)
dea3101e 2374{
2e0fef85
JS
2375 if (vport->num_disc_nodes)
2376 vport->num_disc_nodes--;
dea3101e 2377 /* Continue discovery with <num_disc_nodes> ADISCs to go */
e8b62011
JS
2378 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2379 "0210 Continue discovery with %d ADISCs to go "
2380 "Data: x%x x%x x%x\n",
2381 vport->num_disc_nodes, vport->fc_adisc_cnt,
2382 vport->fc_flag, vport->port_state);
dea3101e 2383 /* Check to see if there are more ADISCs to be sent */
2e0fef85
JS
2384 if (vport->fc_flag & FC_NLP_MORE) {
2385 lpfc_set_disctmo(vport);
2386 /* go thru NPR nodes and issue any remaining ELS ADISCs */
eb016566 2387 lpfc_els_disc_adisc(vport);
dea3101e 2388 }
90160e01
JS
2389 if (!vport->num_disc_nodes)
2390 lpfc_adisc_done(vport);
dea3101e
JB
2391 return;
2392}
2393
e59058c4 2394/**
3621a710 2395 * lpfc_cmpl_els_adisc - Completion callback function for adisc
e59058c4
JS
2396 * @phba: pointer to lpfc hba data structure.
2397 * @cmdiocb: pointer to lpfc command iocb data structure.
2398 * @rspiocb: pointer to lpfc response iocb data structure.
2399 *
2400 * This routine is the completion function for issuing the Address Discover
2401 * (ADISC) command. It first checks to see whether link went down during
2402 * the discovery process. If so, the node will be marked as node port
2403 * recovery for issuing discover IOCB by the link attention handler and
2404 * exit. Otherwise, the response status is checked. If error was reported
2405 * in the response status, the ADISC command shall be retried by invoking
2406 * the lpfc_els_retry() routine. Otherwise, if no error was reported in
2407 * the response status, the state machine is invoked to set transition
2408 * with respect to NLP_EVT_CMPL_ADISC event.
2409 **/
dea3101e 2410static void
2e0fef85
JS
2411lpfc_cmpl_els_adisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2412 struct lpfc_iocbq *rspiocb)
dea3101e 2413{
2e0fef85
JS
2414 struct lpfc_vport *vport = cmdiocb->vport;
2415 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e 2416 IOCB_t *irsp;
dea3101e 2417 struct lpfc_nodelist *ndlp;
2e0fef85 2418 int disc;
dea3101e
JB
2419
2420 /* we pass cmdiocb to state machine which needs rspiocb as well */
2421 cmdiocb->context_un.rsp_iocb = rspiocb;
2422
2423 irsp = &(rspiocb->iocb);
2424 ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
dea3101e 2425
858c9f6c
JS
2426 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2427 "ADISC cmpl: status:x%x/x%x did:x%x",
2428 irsp->ulpStatus, irsp->un.ulpWord[4],
2429 ndlp->nlp_DID);
2430
dea3101e
JB
2431 /* Since ndlp can be freed in the disc state machine, note if this node
2432 * is being used during discovery.
2433 */
2e0fef85 2434 spin_lock_irq(shost->host_lock);
dea3101e 2435 disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC);
c9f8735b 2436 ndlp->nlp_flag &= ~(NLP_ADISC_SND | NLP_NPR_2B_DISC);
2e0fef85 2437 spin_unlock_irq(shost->host_lock);
dea3101e 2438 /* ADISC completes to NPort <nlp_DID> */
e8b62011
JS
2439 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2440 "0104 ADISC completes to NPort x%x "
2441 "Data: x%x x%x x%x x%x x%x\n",
2442 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
2443 irsp->ulpTimeout, disc, vport->num_disc_nodes);
dea3101e 2444 /* Check to see if link went down during discovery */
2e0fef85
JS
2445 if (lpfc_els_chk_latt(vport)) {
2446 spin_lock_irq(shost->host_lock);
dea3101e 2447 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2e0fef85 2448 spin_unlock_irq(shost->host_lock);
dea3101e
JB
2449 goto out;
2450 }
2451
2452 if (irsp->ulpStatus) {
2453 /* Check for retry */
2454 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
2455 /* ELS command is being retried */
2456 if (disc) {
2e0fef85 2457 spin_lock_irq(shost->host_lock);
dea3101e 2458 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2e0fef85
JS
2459 spin_unlock_irq(shost->host_lock);
2460 lpfc_set_disctmo(vport);
dea3101e
JB
2461 }
2462 goto out;
2463 }
2464 /* ADISC failed */
e40a02c1
JS
2465 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
2466 "2755 ADISC failure DID:%06X Status:x%x/x%x\n",
2467 ndlp->nlp_DID, irsp->ulpStatus,
2468 irsp->un.ulpWord[4]);
dea3101e 2469 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
e47c9093 2470 if (!lpfc_error_lost_link(irsp))
2e0fef85 2471 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
858c9f6c 2472 NLP_EVT_CMPL_ADISC);
e47c9093 2473 } else
dea3101e 2474 /* Good status, call state machine */
2e0fef85 2475 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
dea3101e 2476 NLP_EVT_CMPL_ADISC);
dea3101e 2477
90160e01
JS
2478 /* Check to see if there are more ADISCs to be sent */
2479 if (disc && vport->num_disc_nodes)
2e0fef85 2480 lpfc_more_adisc(vport);
dea3101e
JB
2481out:
2482 lpfc_els_free_iocb(phba, cmdiocb);
2483 return;
2484}
2485
e59058c4 2486/**
3621a710 2487 * lpfc_issue_els_adisc - Issue an address discover iocb to an node on a vport
e59058c4
JS
2488 * @vport: pointer to a virtual N_Port data structure.
2489 * @ndlp: pointer to a node-list data structure.
2490 * @retry: number of retries to the command IOCB.
2491 *
2492 * This routine issues an Address Discover (ADISC) for an @ndlp on a
2493 * @vport. It prepares the payload of the ADISC ELS command, updates the
2494 * and states of the ndlp, and invokes the lpfc_sli_issue_iocb() routine
2495 * to issue the ADISC ELS command.
2496 *
2497 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2498 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2499 * will be stored into the context1 field of the IOCB for the completion
2500 * callback function to the ADISC ELS command.
2501 *
2502 * Return code
2503 * 0 - successfully issued adisc
2504 * 1 - failed to issue adisc
2505 **/
dea3101e 2506int
2e0fef85 2507lpfc_issue_els_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
dea3101e
JB
2508 uint8_t retry)
2509{
2e0fef85
JS
2510 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2511 struct lpfc_hba *phba = vport->phba;
dea3101e 2512 ADISC *ap;
dea3101e 2513 struct lpfc_iocbq *elsiocb;
dea3101e
JB
2514 uint8_t *pcmd;
2515 uint16_t cmdsize;
2516
92d7f7b0 2517 cmdsize = (sizeof(uint32_t) + sizeof(ADISC));
2e0fef85
JS
2518 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
2519 ndlp->nlp_DID, ELS_CMD_ADISC);
488d1469 2520 if (!elsiocb)
c9f8735b 2521 return 1;
dea3101e 2522
dea3101e
JB
2523 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2524
2525 /* For ADISC request, remainder of payload is service parameters */
2526 *((uint32_t *) (pcmd)) = ELS_CMD_ADISC;
92d7f7b0 2527 pcmd += sizeof(uint32_t);
dea3101e
JB
2528
2529 /* Fill in ADISC payload */
2530 ap = (ADISC *) pcmd;
2531 ap->hardAL_PA = phba->fc_pref_ALPA;
92d7f7b0
JS
2532 memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name));
2533 memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
2e0fef85 2534 ap->DID = be32_to_cpu(vport->fc_myDID);
dea3101e 2535
858c9f6c
JS
2536 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2537 "Issue ADISC: did:x%x",
2538 ndlp->nlp_DID, 0, 0);
2539
dea3101e
JB
2540 phba->fc_stat.elsXmitADISC++;
2541 elsiocb->iocb_cmpl = lpfc_cmpl_els_adisc;
2e0fef85 2542 spin_lock_irq(shost->host_lock);
dea3101e 2543 ndlp->nlp_flag |= NLP_ADISC_SND;
2e0fef85 2544 spin_unlock_irq(shost->host_lock);
3772a991
JS
2545 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
2546 IOCB_ERROR) {
2e0fef85 2547 spin_lock_irq(shost->host_lock);
dea3101e 2548 ndlp->nlp_flag &= ~NLP_ADISC_SND;
2e0fef85 2549 spin_unlock_irq(shost->host_lock);
dea3101e 2550 lpfc_els_free_iocb(phba, elsiocb);
c9f8735b 2551 return 1;
dea3101e 2552 }
c9f8735b 2553 return 0;
dea3101e
JB
2554}
2555
e59058c4 2556/**
3621a710 2557 * lpfc_cmpl_els_logo - Completion callback function for logo
e59058c4
JS
2558 * @phba: pointer to lpfc hba data structure.
2559 * @cmdiocb: pointer to lpfc command iocb data structure.
2560 * @rspiocb: pointer to lpfc response iocb data structure.
2561 *
2562 * This routine is the completion function for issuing the ELS Logout (LOGO)
2563 * command. If no error status was reported from the LOGO response, the
2564 * state machine of the associated ndlp shall be invoked for transition with
2565 * respect to NLP_EVT_CMPL_LOGO event. Otherwise, if error status was reported,
2566 * the lpfc_els_retry() routine will be invoked to retry the LOGO command.
2567 **/
dea3101e 2568static void
2e0fef85
JS
2569lpfc_cmpl_els_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2570 struct lpfc_iocbq *rspiocb)
dea3101e 2571{
2e0fef85
JS
2572 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
2573 struct lpfc_vport *vport = ndlp->vport;
2574 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e 2575 IOCB_t *irsp;
92494144 2576 struct lpfcMboxq *mbox;
086a345f
JS
2577 unsigned long flags;
2578 uint32_t skip_recovery = 0;
dea3101e 2579
dea3101e
JB
2580 /* we pass cmdiocb to state machine which needs rspiocb as well */
2581 cmdiocb->context_un.rsp_iocb = rspiocb;
2582
2583 irsp = &(rspiocb->iocb);
2e0fef85 2584 spin_lock_irq(shost->host_lock);
dea3101e 2585 ndlp->nlp_flag &= ~NLP_LOGO_SND;
2e0fef85 2586 spin_unlock_irq(shost->host_lock);
dea3101e 2587
858c9f6c
JS
2588 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2589 "LOGO cmpl: status:x%x/x%x did:x%x",
2590 irsp->ulpStatus, irsp->un.ulpWord[4],
2591 ndlp->nlp_DID);
086a345f 2592
dea3101e 2593 /* LOGO completes to NPort <nlp_DID> */
e8b62011
JS
2594 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2595 "0105 LOGO completes to NPort x%x "
2596 "Data: x%x x%x x%x x%x\n",
2597 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
2598 irsp->ulpTimeout, vport->num_disc_nodes);
086a345f
JS
2599
2600 if (lpfc_els_chk_latt(vport)) {
2601 skip_recovery = 1;
dea3101e 2602 goto out;
086a345f 2603 }
dea3101e 2604
086a345f 2605 /* Check to see if link went down during discovery */
92d7f7b0
JS
2606 if (ndlp->nlp_flag & NLP_TARGET_REMOVE) {
2607 /* NLP_EVT_DEVICE_RM should unregister the RPI
2608 * which should abort all outstanding IOs.
2609 */
2610 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2611 NLP_EVT_DEVICE_RM);
086a345f 2612 skip_recovery = 1;
92d7f7b0
JS
2613 goto out;
2614 }
2615
dea3101e
JB
2616 if (irsp->ulpStatus) {
2617 /* Check for retry */
086a345f 2618 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
dea3101e 2619 /* ELS command is being retried */
086a345f 2620 skip_recovery = 1;
dea3101e 2621 goto out;
086a345f 2622 }
dea3101e 2623 /* LOGO failed */
e40a02c1
JS
2624 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
2625 "2756 LOGO failure DID:%06X Status:x%x/x%x\n",
2626 ndlp->nlp_DID, irsp->ulpStatus,
2627 irsp->un.ulpWord[4]);
dea3101e 2628 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
086a345f
JS
2629 if (lpfc_error_lost_link(irsp)) {
2630 skip_recovery = 1;
dea3101e 2631 goto out;
086a345f
JS
2632 }
2633 }
2634
2635 /* Call state machine. This will unregister the rpi if needed. */
2636 lpfc_disc_state_machine(vport, ndlp, cmdiocb, NLP_EVT_CMPL_LOGO);
2637
dea3101e
JB
2638out:
2639 lpfc_els_free_iocb(phba, cmdiocb);
92494144
JS
2640 /* If we are in pt2pt mode, we could rcv new S_ID on PLOGI */
2641 if ((vport->fc_flag & FC_PT2PT) &&
2642 !(vport->fc_flag & FC_PT2PT_PLOGI)) {
2643 phba->pport->fc_myDID = 0;
a0f2d3ef 2644
01649561 2645 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
8c258641 2646 (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) {
d613b6a7
JS
2647 if (phba->nvmet_support)
2648 lpfc_nvmet_update_targetport(phba);
2649 else
8c258641 2650 lpfc_nvme_update_localport(phba->pport);
8c258641 2651 }
a0f2d3ef 2652
92494144
JS
2653 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2654 if (mbox) {
2655 lpfc_config_link(phba, mbox);
2656 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
2657 mbox->vport = vport;
2658 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) ==
2659 MBX_NOT_FINISHED) {
2660 mempool_free(mbox, phba->mbox_mem_pool);
086a345f 2661 skip_recovery = 1;
92494144
JS
2662 }
2663 }
2664 }
086a345f
JS
2665
2666 /*
2667 * If the node is a target, the handling attempts to recover the port.
2668 * For any other port type, the rpi is unregistered as an implicit
2669 * LOGO.
2670 */
2671 if ((ndlp->nlp_type & NLP_FCP_TARGET) && (skip_recovery == 0)) {
2672 lpfc_cancel_retry_delay_tmo(vport, ndlp);
2673 spin_lock_irqsave(shost->host_lock, flags);
2674 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2675 spin_unlock_irqrestore(shost->host_lock, flags);
2676
2677 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2678 "3187 LOGO completes to NPort x%x: Start "
2679 "Recovery Data: x%x x%x x%x x%x\n",
2680 ndlp->nlp_DID, irsp->ulpStatus,
2681 irsp->un.ulpWord[4], irsp->ulpTimeout,
2682 vport->num_disc_nodes);
2683 lpfc_disc_start(vport);
2684 }
dea3101e
JB
2685 return;
2686}
2687
e59058c4 2688/**
3621a710 2689 * lpfc_issue_els_logo - Issue a logo to an node on a vport
e59058c4
JS
2690 * @vport: pointer to a virtual N_Port data structure.
2691 * @ndlp: pointer to a node-list data structure.
2692 * @retry: number of retries to the command IOCB.
2693 *
2694 * This routine constructs and issues an ELS Logout (LOGO) iocb command
2695 * to a remote node, referred by an @ndlp on a @vport. It constructs the
2696 * payload of the IOCB, properly sets up the @ndlp state, and invokes the
2697 * lpfc_sli_issue_iocb() routine to send out the LOGO ELS command.
2698 *
2699 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2700 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2701 * will be stored into the context1 field of the IOCB for the completion
2702 * callback function to the LOGO ELS command.
2703 *
2704 * Return code
2705 * 0 - successfully issued logo
2706 * 1 - failed to issue logo
2707 **/
dea3101e 2708int
2e0fef85 2709lpfc_issue_els_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
dea3101e
JB
2710 uint8_t retry)
2711{
2e0fef85
JS
2712 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2713 struct lpfc_hba *phba = vport->phba;
dea3101e 2714 struct lpfc_iocbq *elsiocb;
dea3101e
JB
2715 uint8_t *pcmd;
2716 uint16_t cmdsize;
92d7f7b0 2717 int rc;
dea3101e 2718
98c9ea5c
JS
2719 spin_lock_irq(shost->host_lock);
2720 if (ndlp->nlp_flag & NLP_LOGO_SND) {
2721 spin_unlock_irq(shost->host_lock);
2722 return 0;
2723 }
2724 spin_unlock_irq(shost->host_lock);
2725
92d7f7b0 2726 cmdsize = (2 * sizeof(uint32_t)) + sizeof(struct lpfc_name);
2e0fef85
JS
2727 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
2728 ndlp->nlp_DID, ELS_CMD_LOGO);
488d1469 2729 if (!elsiocb)
c9f8735b 2730 return 1;
dea3101e 2731
dea3101e
JB
2732 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2733 *((uint32_t *) (pcmd)) = ELS_CMD_LOGO;
92d7f7b0 2734 pcmd += sizeof(uint32_t);
dea3101e
JB
2735
2736 /* Fill in LOGO payload */
2e0fef85 2737 *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID);
92d7f7b0
JS
2738 pcmd += sizeof(uint32_t);
2739 memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name));
dea3101e 2740
858c9f6c
JS
2741 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2742 "Issue LOGO: did:x%x",
2743 ndlp->nlp_DID, 0, 0);
2744
086a345f
JS
2745 /*
2746 * If we are issuing a LOGO, we may try to recover the remote NPort
2747 * by issuing a PLOGI later. Even though we issue ELS cmds by the
2748 * VPI, if we have a valid RPI, and that RPI gets unreg'ed while
2749 * that ELS command is in-flight, the HBA returns a IOERR_INVALID_RPI
2750 * for that ELS cmd. To avoid this situation, lets get rid of the
2751 * RPI right now, before any ELS cmds are sent.
2752 */
2753 spin_lock_irq(shost->host_lock);
2754 ndlp->nlp_flag |= NLP_ISSUE_LOGO;
2755 spin_unlock_irq(shost->host_lock);
2756 if (lpfc_unreg_rpi(vport, ndlp)) {
2757 lpfc_els_free_iocb(phba, elsiocb);
2758 return 0;
2759 }
2760
dea3101e
JB
2761 phba->fc_stat.elsXmitLOGO++;
2762 elsiocb->iocb_cmpl = lpfc_cmpl_els_logo;
2e0fef85 2763 spin_lock_irq(shost->host_lock);
dea3101e 2764 ndlp->nlp_flag |= NLP_LOGO_SND;
086a345f 2765 ndlp->nlp_flag &= ~NLP_ISSUE_LOGO;
2e0fef85 2766 spin_unlock_irq(shost->host_lock);
3772a991 2767 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
92d7f7b0
JS
2768
2769 if (rc == IOCB_ERROR) {
2e0fef85 2770 spin_lock_irq(shost->host_lock);
dea3101e 2771 ndlp->nlp_flag &= ~NLP_LOGO_SND;
2e0fef85 2772 spin_unlock_irq(shost->host_lock);
dea3101e 2773 lpfc_els_free_iocb(phba, elsiocb);
c9f8735b 2774 return 1;
dea3101e 2775 }
c9f8735b 2776 return 0;
dea3101e
JB
2777}
2778
e59058c4 2779/**
3621a710 2780 * lpfc_cmpl_els_cmd - Completion callback function for generic els command
e59058c4
JS
2781 * @phba: pointer to lpfc hba data structure.
2782 * @cmdiocb: pointer to lpfc command iocb data structure.
2783 * @rspiocb: pointer to lpfc response iocb data structure.
2784 *
2785 * This routine is a generic completion callback function for ELS commands.
2786 * Specifically, it is the callback function which does not need to perform
2787 * any command specific operations. It is currently used by the ELS command
2788 * issuing routines for the ELS State Change Request (SCR),
2789 * lpfc_issue_els_scr(), and the ELS Fibre Channel Address Resolution
2790 * Protocol Response (FARPR) routine, lpfc_issue_els_farpr(). Other than
2791 * certain debug loggings, this callback function simply invokes the
2792 * lpfc_els_chk_latt() routine to check whether link went down during the
2793 * discovery process.
2794 **/
dea3101e 2795static void
2e0fef85
JS
2796lpfc_cmpl_els_cmd(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2797 struct lpfc_iocbq *rspiocb)
dea3101e 2798{
2e0fef85 2799 struct lpfc_vport *vport = cmdiocb->vport;
dea3101e
JB
2800 IOCB_t *irsp;
2801
2802 irsp = &rspiocb->iocb;
2803
858c9f6c
JS
2804 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2805 "ELS cmd cmpl: status:x%x/x%x did:x%x",
2806 irsp->ulpStatus, irsp->un.ulpWord[4],
2807 irsp->un.elsreq64.remoteID);
dea3101e 2808 /* ELS cmd tag <ulpIoTag> completes */
e8b62011
JS
2809 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2810 "0106 ELS cmd tag x%x completes Data: x%x x%x x%x\n",
2811 irsp->ulpIoTag, irsp->ulpStatus,
2812 irsp->un.ulpWord[4], irsp->ulpTimeout);
dea3101e 2813 /* Check to see if link went down during discovery */
2e0fef85 2814 lpfc_els_chk_latt(vport);
dea3101e
JB
2815 lpfc_els_free_iocb(phba, cmdiocb);
2816 return;
2817}
2818
e59058c4 2819/**
3621a710 2820 * lpfc_issue_els_scr - Issue a scr to an node on a vport
e59058c4
JS
2821 * @vport: pointer to a host virtual N_Port data structure.
2822 * @nportid: N_Port identifier to the remote node.
2823 * @retry: number of retries to the command IOCB.
2824 *
2825 * This routine issues a State Change Request (SCR) to a fabric node
2826 * on a @vport. The remote node @nportid is passed into the function. It
2827 * first search the @vport node list to find the matching ndlp. If no such
2828 * ndlp is found, a new ndlp shall be created for this (SCR) purpose. An
2829 * IOCB is allocated, payload prepared, and the lpfc_sli_issue_iocb()
2830 * routine is invoked to send the SCR IOCB.
2831 *
2832 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2833 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2834 * will be stored into the context1 field of the IOCB for the completion
2835 * callback function to the SCR ELS command.
2836 *
2837 * Return code
2838 * 0 - Successfully issued scr command
2839 * 1 - Failed to issue scr command
2840 **/
dea3101e 2841int
2e0fef85 2842lpfc_issue_els_scr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry)
dea3101e 2843{
2e0fef85 2844 struct lpfc_hba *phba = vport->phba;
dea3101e 2845 struct lpfc_iocbq *elsiocb;
dea3101e
JB
2846 uint8_t *pcmd;
2847 uint16_t cmdsize;
2848 struct lpfc_nodelist *ndlp;
2849
92d7f7b0 2850 cmdsize = (sizeof(uint32_t) + sizeof(SCR));
dea3101e 2851
e47c9093
JS
2852 ndlp = lpfc_findnode_did(vport, nportid);
2853 if (!ndlp) {
9d3d340d 2854 ndlp = lpfc_nlp_init(vport, nportid);
e47c9093
JS
2855 if (!ndlp)
2856 return 1;
e47c9093
JS
2857 lpfc_enqueue_node(vport, ndlp);
2858 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
2859 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
2860 if (!ndlp)
2861 return 1;
2862 }
2e0fef85
JS
2863
2864 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
2865 ndlp->nlp_DID, ELS_CMD_SCR);
dea3101e 2866
488d1469 2867 if (!elsiocb) {
fa4066b6
JS
2868 /* This will trigger the release of the node just
2869 * allocated
2870 */
329f9bc7 2871 lpfc_nlp_put(ndlp);
c9f8735b 2872 return 1;
dea3101e
JB
2873 }
2874
dea3101e
JB
2875 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2876
2877 *((uint32_t *) (pcmd)) = ELS_CMD_SCR;
92d7f7b0 2878 pcmd += sizeof(uint32_t);
dea3101e
JB
2879
2880 /* For SCR, remainder of payload is SCR parameter page */
92d7f7b0 2881 memset(pcmd, 0, sizeof(SCR));
dea3101e
JB
2882 ((SCR *) pcmd)->Function = SCR_FUNC_FULL;
2883
858c9f6c
JS
2884 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2885 "Issue SCR: did:x%x",
2886 ndlp->nlp_DID, 0, 0);
2887
dea3101e
JB
2888 phba->fc_stat.elsXmitSCR++;
2889 elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd;
3772a991
JS
2890 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
2891 IOCB_ERROR) {
fa4066b6
JS
2892 /* The additional lpfc_nlp_put will cause the following
2893 * lpfc_els_free_iocb routine to trigger the rlease of
2894 * the node.
2895 */
329f9bc7 2896 lpfc_nlp_put(ndlp);
dea3101e 2897 lpfc_els_free_iocb(phba, elsiocb);
c9f8735b 2898 return 1;
dea3101e 2899 }
fa4066b6
JS
2900 /* This will cause the callback-function lpfc_cmpl_els_cmd to
2901 * trigger the release of node.
2902 */
cff261f6 2903
329f9bc7 2904 lpfc_nlp_put(ndlp);
c9f8735b 2905 return 0;
dea3101e
JB
2906}
2907
e59058c4 2908/**
3621a710 2909 * lpfc_issue_els_farpr - Issue a farp to an node on a vport
e59058c4
JS
2910 * @vport: pointer to a host virtual N_Port data structure.
2911 * @nportid: N_Port identifier to the remote node.
2912 * @retry: number of retries to the command IOCB.
2913 *
2914 * This routine issues a Fibre Channel Address Resolution Response
2915 * (FARPR) to a node on a vport. The remote node N_Port identifier (@nportid)
2916 * is passed into the function. It first search the @vport node list to find
2917 * the matching ndlp. If no such ndlp is found, a new ndlp shall be created
2918 * for this (FARPR) purpose. An IOCB is allocated, payload prepared, and the
2919 * lpfc_sli_issue_iocb() routine is invoked to send the FARPR ELS command.
2920 *
2921 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2922 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2923 * will be stored into the context1 field of the IOCB for the completion
2924 * callback function to the PARPR ELS command.
2925 *
2926 * Return code
2927 * 0 - Successfully issued farpr command
2928 * 1 - Failed to issue farpr command
2929 **/
dea3101e 2930static int
2e0fef85 2931lpfc_issue_els_farpr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry)
dea3101e 2932{
2e0fef85 2933 struct lpfc_hba *phba = vport->phba;
dea3101e 2934 struct lpfc_iocbq *elsiocb;
dea3101e
JB
2935 FARP *fp;
2936 uint8_t *pcmd;
2937 uint32_t *lp;
2938 uint16_t cmdsize;
2939 struct lpfc_nodelist *ondlp;
2940 struct lpfc_nodelist *ndlp;
2941
92d7f7b0 2942 cmdsize = (sizeof(uint32_t) + sizeof(FARP));
dea3101e 2943
e47c9093
JS
2944 ndlp = lpfc_findnode_did(vport, nportid);
2945 if (!ndlp) {
9d3d340d 2946 ndlp = lpfc_nlp_init(vport, nportid);
e47c9093
JS
2947 if (!ndlp)
2948 return 1;
e47c9093
JS
2949 lpfc_enqueue_node(vport, ndlp);
2950 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
2951 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
2952 if (!ndlp)
2953 return 1;
2954 }
2e0fef85
JS
2955
2956 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
2957 ndlp->nlp_DID, ELS_CMD_RNID);
488d1469 2958 if (!elsiocb) {
fa4066b6
JS
2959 /* This will trigger the release of the node just
2960 * allocated
2961 */
329f9bc7 2962 lpfc_nlp_put(ndlp);
c9f8735b 2963 return 1;
dea3101e
JB
2964 }
2965
dea3101e
JB
2966 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2967
2968 *((uint32_t *) (pcmd)) = ELS_CMD_FARPR;
92d7f7b0 2969 pcmd += sizeof(uint32_t);
dea3101e
JB
2970
2971 /* Fill in FARPR payload */
2972 fp = (FARP *) (pcmd);
92d7f7b0 2973 memset(fp, 0, sizeof(FARP));
dea3101e
JB
2974 lp = (uint32_t *) pcmd;
2975 *lp++ = be32_to_cpu(nportid);
2e0fef85 2976 *lp++ = be32_to_cpu(vport->fc_myDID);
dea3101e
JB
2977 fp->Rflags = 0;
2978 fp->Mflags = (FARP_MATCH_PORT | FARP_MATCH_NODE);
2979
92d7f7b0
JS
2980 memcpy(&fp->RportName, &vport->fc_portname, sizeof(struct lpfc_name));
2981 memcpy(&fp->RnodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
2e0fef85 2982 ondlp = lpfc_findnode_did(vport, nportid);
e47c9093 2983 if (ondlp && NLP_CHK_NODE_ACT(ondlp)) {
dea3101e 2984 memcpy(&fp->OportName, &ondlp->nlp_portname,
92d7f7b0 2985 sizeof(struct lpfc_name));
dea3101e 2986 memcpy(&fp->OnodeName, &ondlp->nlp_nodename,
92d7f7b0 2987 sizeof(struct lpfc_name));
dea3101e
JB
2988 }
2989
858c9f6c
JS
2990 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2991 "Issue FARPR: did:x%x",
2992 ndlp->nlp_DID, 0, 0);
2993
dea3101e
JB
2994 phba->fc_stat.elsXmitFARPR++;
2995 elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd;
3772a991
JS
2996 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
2997 IOCB_ERROR) {
fa4066b6
JS
2998 /* The additional lpfc_nlp_put will cause the following
2999 * lpfc_els_free_iocb routine to trigger the release of
3000 * the node.
3001 */
329f9bc7 3002 lpfc_nlp_put(ndlp);
dea3101e 3003 lpfc_els_free_iocb(phba, elsiocb);
c9f8735b 3004 return 1;
dea3101e 3005 }
fa4066b6
JS
3006 /* This will cause the callback-function lpfc_cmpl_els_cmd to
3007 * trigger the release of the node.
3008 */
329f9bc7 3009 lpfc_nlp_put(ndlp);
c9f8735b 3010 return 0;
dea3101e
JB
3011}
3012
e59058c4 3013/**
3621a710 3014 * lpfc_cancel_retry_delay_tmo - Cancel the timer with delayed iocb-cmd retry
e59058c4
JS
3015 * @vport: pointer to a host virtual N_Port data structure.
3016 * @nlp: pointer to a node-list data structure.
3017 *
3018 * This routine cancels the timer with a delayed IOCB-command retry for
3019 * a @vport's @ndlp. It stops the timer for the delayed function retrial and
3020 * removes the ELS retry event if it presents. In addition, if the
3021 * NLP_NPR_2B_DISC bit is set in the @nlp's nlp_flag bitmap, ADISC IOCB
3022 * commands are sent for the @vport's nodes that require issuing discovery
3023 * ADISC.
3024 **/
fdcebe28 3025void
2e0fef85 3026lpfc_cancel_retry_delay_tmo(struct lpfc_vport *vport, struct lpfc_nodelist *nlp)
fdcebe28 3027{
2e0fef85 3028 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
e47c9093 3029 struct lpfc_work_evt *evtp;
2e0fef85 3030
0d2b6b83
JS
3031 if (!(nlp->nlp_flag & NLP_DELAY_TMO))
3032 return;
2e0fef85 3033 spin_lock_irq(shost->host_lock);
fdcebe28 3034 nlp->nlp_flag &= ~NLP_DELAY_TMO;
2e0fef85 3035 spin_unlock_irq(shost->host_lock);
fdcebe28
JS
3036 del_timer_sync(&nlp->nlp_delayfunc);
3037 nlp->nlp_last_elscmd = 0;
e47c9093 3038 if (!list_empty(&nlp->els_retry_evt.evt_listp)) {
fdcebe28 3039 list_del_init(&nlp->els_retry_evt.evt_listp);
e47c9093
JS
3040 /* Decrement nlp reference count held for the delayed retry */
3041 evtp = &nlp->els_retry_evt;
3042 lpfc_nlp_put((struct lpfc_nodelist *)evtp->evt_arg1);
3043 }
fdcebe28 3044 if (nlp->nlp_flag & NLP_NPR_2B_DISC) {
2e0fef85 3045 spin_lock_irq(shost->host_lock);
fdcebe28 3046 nlp->nlp_flag &= ~NLP_NPR_2B_DISC;
2e0fef85
JS
3047 spin_unlock_irq(shost->host_lock);
3048 if (vport->num_disc_nodes) {
0d2b6b83
JS
3049 if (vport->port_state < LPFC_VPORT_READY) {
3050 /* Check if there are more ADISCs to be sent */
3051 lpfc_more_adisc(vport);
0d2b6b83
JS
3052 } else {
3053 /* Check if there are more PLOGIs to be sent */
3054 lpfc_more_plogi(vport);
90160e01
JS
3055 if (vport->num_disc_nodes == 0) {
3056 spin_lock_irq(shost->host_lock);
3057 vport->fc_flag &= ~FC_NDISC_ACTIVE;
3058 spin_unlock_irq(shost->host_lock);
3059 lpfc_can_disctmo(vport);
3060 lpfc_end_rscn(vport);
3061 }
fdcebe28
JS
3062 }
3063 }
3064 }
3065 return;
3066}
3067
e59058c4 3068/**
3621a710 3069 * lpfc_els_retry_delay - Timer function with a ndlp delayed function timer
e59058c4
JS
3070 * @ptr: holder for the pointer to the timer function associated data (ndlp).
3071 *
3072 * This routine is invoked by the ndlp delayed-function timer to check
3073 * whether there is any pending ELS retry event(s) with the node. If not, it
3074 * simply returns. Otherwise, if there is at least one ELS delayed event, it
3075 * adds the delayed events to the HBA work list and invokes the
3076 * lpfc_worker_wake_up() routine to wake up worker thread to process the
3077 * event. Note that lpfc_nlp_get() is called before posting the event to
3078 * the work list to hold reference count of ndlp so that it guarantees the
3079 * reference to ndlp will still be available when the worker thread gets
3080 * to the event associated with the ndlp.
3081 **/
dea3101e
JB
3082void
3083lpfc_els_retry_delay(unsigned long ptr)
3084{
2e0fef85
JS
3085 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) ptr;
3086 struct lpfc_vport *vport = ndlp->vport;
2e0fef85 3087 struct lpfc_hba *phba = vport->phba;
92d7f7b0 3088 unsigned long flags;
2e0fef85 3089 struct lpfc_work_evt *evtp = &ndlp->els_retry_evt;
dea3101e 3090
92d7f7b0 3091 spin_lock_irqsave(&phba->hbalock, flags);
dea3101e 3092 if (!list_empty(&evtp->evt_listp)) {
92d7f7b0 3093 spin_unlock_irqrestore(&phba->hbalock, flags);
dea3101e
JB
3094 return;
3095 }
3096
fa4066b6
JS
3097 /* We need to hold the node by incrementing the reference
3098 * count until the queued work is done
3099 */
3100 evtp->evt_arg1 = lpfc_nlp_get(ndlp);
5e9d9b82
JS
3101 if (evtp->evt_arg1) {
3102 evtp->evt = LPFC_EVT_ELS_RETRY;
3103 list_add_tail(&evtp->evt_listp, &phba->work_list);
92d7f7b0 3104 lpfc_worker_wake_up(phba);
5e9d9b82 3105 }
92d7f7b0 3106 spin_unlock_irqrestore(&phba->hbalock, flags);
dea3101e
JB
3107 return;
3108}
3109
e59058c4 3110/**
3621a710 3111 * lpfc_els_retry_delay_handler - Work thread handler for ndlp delayed function
e59058c4
JS
3112 * @ndlp: pointer to a node-list data structure.
3113 *
3114 * This routine is the worker-thread handler for processing the @ndlp delayed
3115 * event(s), posted by the lpfc_els_retry_delay() routine. It simply retrieves
3116 * the last ELS command from the associated ndlp and invokes the proper ELS
3117 * function according to the delayed ELS command to retry the command.
3118 **/
dea3101e
JB
3119void
3120lpfc_els_retry_delay_handler(struct lpfc_nodelist *ndlp)
3121{
2e0fef85
JS
3122 struct lpfc_vport *vport = ndlp->vport;
3123 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
eb016566 3124 uint32_t cmd, retry;
dea3101e 3125
2e0fef85 3126 spin_lock_irq(shost->host_lock);
5024ab17
JW
3127 cmd = ndlp->nlp_last_elscmd;
3128 ndlp->nlp_last_elscmd = 0;
dea3101e
JB
3129
3130 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
2e0fef85 3131 spin_unlock_irq(shost->host_lock);
dea3101e
JB
3132 return;
3133 }
3134
3135 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
2e0fef85 3136 spin_unlock_irq(shost->host_lock);
1a169689
JS
3137 /*
3138 * If a discovery event readded nlp_delayfunc after timer
3139 * firing and before processing the timer, cancel the
3140 * nlp_delayfunc.
3141 */
3142 del_timer_sync(&ndlp->nlp_delayfunc);
dea3101e 3143 retry = ndlp->nlp_retry;
4d9ab994 3144 ndlp->nlp_retry = 0;
dea3101e
JB
3145
3146 switch (cmd) {
3147 case ELS_CMD_FLOGI:
2e0fef85 3148 lpfc_issue_els_flogi(vport, ndlp, retry);
dea3101e
JB
3149 break;
3150 case ELS_CMD_PLOGI:
2e0fef85 3151 if (!lpfc_issue_els_plogi(vport, ndlp->nlp_DID, retry)) {
5024ab17 3152 ndlp->nlp_prev_state = ndlp->nlp_state;
2e0fef85 3153 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
6ad42535 3154 }
dea3101e
JB
3155 break;
3156 case ELS_CMD_ADISC:
2e0fef85 3157 if (!lpfc_issue_els_adisc(vport, ndlp, retry)) {
5024ab17 3158 ndlp->nlp_prev_state = ndlp->nlp_state;
2e0fef85 3159 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
6ad42535 3160 }
dea3101e
JB
3161 break;
3162 case ELS_CMD_PRLI:
a0f2d3ef 3163 case ELS_CMD_NVMEPRLI:
2e0fef85 3164 if (!lpfc_issue_els_prli(vport, ndlp, retry)) {
5024ab17 3165 ndlp->nlp_prev_state = ndlp->nlp_state;
2e0fef85 3166 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
6ad42535 3167 }
dea3101e
JB
3168 break;
3169 case ELS_CMD_LOGO:
2e0fef85 3170 if (!lpfc_issue_els_logo(vport, ndlp, retry)) {
5024ab17 3171 ndlp->nlp_prev_state = ndlp->nlp_state;
086a345f 3172 lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE);
6ad42535 3173 }
dea3101e 3174 break;
92d7f7b0 3175 case ELS_CMD_FDISC:
fedd3b7b
JS
3176 if (!(vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI))
3177 lpfc_issue_els_fdisc(vport, ndlp, retry);
92d7f7b0 3178 break;
dea3101e
JB
3179 }
3180 return;
3181}
3182
e59058c4 3183/**
3621a710 3184 * lpfc_els_retry - Make retry decision on an els command iocb
e59058c4
JS
3185 * @phba: pointer to lpfc hba data structure.
3186 * @cmdiocb: pointer to lpfc command iocb data structure.
3187 * @rspiocb: pointer to lpfc response iocb data structure.
3188 *
3189 * This routine makes a retry decision on an ELS command IOCB, which has
3190 * failed. The following ELS IOCBs use this function for retrying the command
3191 * when previously issued command responsed with error status: FLOGI, PLOGI,
3192 * PRLI, ADISC, LOGO, and FDISC. Based on the ELS command type and the
3193 * returned error status, it makes the decision whether a retry shall be
3194 * issued for the command, and whether a retry shall be made immediately or
3195 * delayed. In the former case, the corresponding ELS command issuing-function
3196 * is called to retry the command. In the later case, the ELS command shall
3197 * be posted to the ndlp delayed event and delayed function timer set to the
3198 * ndlp for the delayed command issusing.
3199 *
3200 * Return code
3201 * 0 - No retry of els command is made
3202 * 1 - Immediate or delayed retry of els command is made
3203 **/
dea3101e 3204static int
2e0fef85
JS
3205lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
3206 struct lpfc_iocbq *rspiocb)
dea3101e 3207{
2e0fef85
JS
3208 struct lpfc_vport *vport = cmdiocb->vport;
3209 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3210 IOCB_t *irsp = &rspiocb->iocb;
3211 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
3212 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
dea3101e
JB
3213 uint32_t *elscmd;
3214 struct ls_rjt stat;
2e0fef85 3215 int retry = 0, maxretry = lpfc_max_els_tries, delay = 0;
98c9ea5c 3216 int logerr = 0;
2e0fef85 3217 uint32_t cmd = 0;
488d1469 3218 uint32_t did;
dea3101e 3219
488d1469 3220
dea3101e
JB
3221 /* Note: context2 may be 0 for internal driver abort
3222 * of delays ELS command.
3223 */
3224
3225 if (pcmd && pcmd->virt) {
3226 elscmd = (uint32_t *) (pcmd->virt);
3227 cmd = *elscmd++;
3228 }
3229
e47c9093 3230 if (ndlp && NLP_CHK_NODE_ACT(ndlp))
488d1469
JS
3231 did = ndlp->nlp_DID;
3232 else {
3233 /* We should only hit this case for retrying PLOGI */
3234 did = irsp->un.elsreq64.remoteID;
2e0fef85 3235 ndlp = lpfc_findnode_did(vport, did);
e47c9093
JS
3236 if ((!ndlp || !NLP_CHK_NODE_ACT(ndlp))
3237 && (cmd != ELS_CMD_PLOGI))
488d1469
JS
3238 return 1;
3239 }
3240
858c9f6c
JS
3241 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3242 "Retry ELS: wd7:x%x wd4:x%x did:x%x",
3243 *(((uint32_t *) irsp) + 7), irsp->un.ulpWord[4], ndlp->nlp_DID);
3244
dea3101e
JB
3245 switch (irsp->ulpStatus) {
3246 case IOSTAT_FCP_RSP_ERROR:
1151e3ec 3247 break;
dea3101e 3248 case IOSTAT_REMOTE_STOP:
1151e3ec
JS
3249 if (phba->sli_rev == LPFC_SLI_REV4) {
3250 /* This IO was aborted by the target, we don't
3251 * know the rxid and because we did not send the
3252 * ABTS we cannot generate and RRQ.
3253 */
3254 lpfc_set_rrq_active(phba, ndlp,
ee0f4fe1 3255 cmdiocb->sli4_lxritag, 0, 0);
1151e3ec 3256 }
dea3101e 3257 break;
dea3101e 3258 case IOSTAT_LOCAL_REJECT:
e3d2b802 3259 switch ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK)) {
dea3101e 3260 case IOERR_LOOP_OPEN_FAILURE:
eaf15d5b
JS
3261 if (cmd == ELS_CMD_FLOGI) {
3262 if (PCI_DEVICE_ID_HORNET ==
3263 phba->pcidev->device) {
76a95d75 3264 phba->fc_topology = LPFC_TOPOLOGY_LOOP;
eaf15d5b
JS
3265 phba->pport->fc_myDID = 0;
3266 phba->alpa_map[0] = 0;
3267 phba->alpa_map[1] = 0;
3268 }
3269 }
2e0fef85 3270 if (cmd == ELS_CMD_PLOGI && cmdiocb->retry == 0)
92d7f7b0 3271 delay = 1000;
dea3101e
JB
3272 retry = 1;
3273 break;
3274
92d7f7b0 3275 case IOERR_ILLEGAL_COMMAND:
7f5f3d0d
JS
3276 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3277 "0124 Retry illegal cmd x%x "
3278 "retry:x%x delay:x%x\n",
3279 cmd, cmdiocb->retry, delay);
3280 retry = 1;
3281 /* All command's retry policy */
3282 maxretry = 8;
3283 if (cmdiocb->retry > 2)
3284 delay = 1000;
92d7f7b0
JS
3285 break;
3286
dea3101e 3287 case IOERR_NO_RESOURCES:
98c9ea5c 3288 logerr = 1; /* HBA out of resources */
858c9f6c
JS
3289 retry = 1;
3290 if (cmdiocb->retry > 100)
3291 delay = 100;
3292 maxretry = 250;
3293 break;
3294
3295 case IOERR_ILLEGAL_FRAME:
92d7f7b0 3296 delay = 100;
dea3101e
JB
3297 retry = 1;
3298 break;
3299
858c9f6c 3300 case IOERR_SEQUENCE_TIMEOUT:
dea3101e 3301 case IOERR_INVALID_RPI:
5b5b36a9
JS
3302 if (cmd == ELS_CMD_PLOGI &&
3303 did == NameServer_DID) {
3304 /* Continue forever if plogi to */
3305 /* the nameserver fails */
3306 maxretry = 0;
3307 delay = 100;
3308 }
dea3101e
JB
3309 retry = 1;
3310 break;
3311 }
3312 break;
3313
3314 case IOSTAT_NPORT_RJT:
3315 case IOSTAT_FABRIC_RJT:
3316 if (irsp->un.ulpWord[4] & RJT_UNAVAIL_TEMP) {
3317 retry = 1;
3318 break;
3319 }
3320 break;
3321
3322 case IOSTAT_NPORT_BSY:
3323 case IOSTAT_FABRIC_BSY:
98c9ea5c 3324 logerr = 1; /* Fabric / Remote NPort out of resources */
dea3101e
JB
3325 retry = 1;
3326 break;
3327
3328 case IOSTAT_LS_RJT:
3329 stat.un.lsRjtError = be32_to_cpu(irsp->un.ulpWord[4]);
3330 /* Added for Vendor specifc support
3331 * Just keep retrying for these Rsn / Exp codes
3332 */
3333 switch (stat.un.b.lsRjtRsnCode) {
3334 case LSRJT_UNABLE_TPC:
3335 if (stat.un.b.lsRjtRsnCodeExp ==
3336 LSEXP_CMD_IN_PROGRESS) {
3337 if (cmd == ELS_CMD_PLOGI) {
92d7f7b0 3338 delay = 1000;
dea3101e
JB
3339 maxretry = 48;
3340 }
3341 retry = 1;
3342 break;
3343 }
ffc95493
JS
3344 if (stat.un.b.lsRjtRsnCodeExp ==
3345 LSEXP_CANT_GIVE_DATA) {
3346 if (cmd == ELS_CMD_PLOGI) {
3347 delay = 1000;
3348 maxretry = 48;
3349 }
3350 retry = 1;
3351 break;
3352 }
4c1b64ba 3353 if ((cmd == ELS_CMD_PLOGI) ||
a0f2d3ef
JS
3354 (cmd == ELS_CMD_PRLI) ||
3355 (cmd == ELS_CMD_NVMEPRLI)) {
92d7f7b0 3356 delay = 1000;
dea3101e
JB
3357 maxretry = lpfc_max_els_tries + 1;
3358 retry = 1;
3359 break;
3360 }
92d7f7b0
JS
3361 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
3362 (cmd == ELS_CMD_FDISC) &&
3363 (stat.un.b.lsRjtRsnCodeExp == LSEXP_OUT_OF_RESOURCE)){
e8b62011
JS
3364 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3365 "0125 FDISC Failed (x%x). "
3366 "Fabric out of resources\n",
3367 stat.un.lsRjtError);
92d7f7b0
JS
3368 lpfc_vport_set_state(vport,
3369 FC_VPORT_NO_FABRIC_RSCS);
3370 }
dea3101e
JB
3371 break;
3372
3373 case LSRJT_LOGICAL_BSY:
858c9f6c 3374 if ((cmd == ELS_CMD_PLOGI) ||
a0f2d3ef
JS
3375 (cmd == ELS_CMD_PRLI) ||
3376 (cmd == ELS_CMD_NVMEPRLI)) {
92d7f7b0 3377 delay = 1000;
dea3101e 3378 maxretry = 48;
92d7f7b0 3379 } else if (cmd == ELS_CMD_FDISC) {
51ef4c26
JS
3380 /* FDISC retry policy */
3381 maxretry = 48;
3382 if (cmdiocb->retry >= 32)
3383 delay = 1000;
dea3101e
JB
3384 }
3385 retry = 1;
3386 break;
92d7f7b0
JS
3387
3388 case LSRJT_LOGICAL_ERR:
7f5f3d0d
JS
3389 /* There are some cases where switches return this
3390 * error when they are not ready and should be returning
3391 * Logical Busy. We should delay every time.
3392 */
3393 if (cmd == ELS_CMD_FDISC &&
3394 stat.un.b.lsRjtRsnCodeExp == LSEXP_PORT_LOGIN_REQ) {
3395 maxretry = 3;
3396 delay = 1000;
3397 retry = 1;
3398 break;
3399 }
92d7f7b0
JS
3400 case LSRJT_PROTOCOL_ERR:
3401 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
3402 (cmd == ELS_CMD_FDISC) &&
3403 ((stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_PNAME) ||
3404 (stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_NPORT_ID))
3405 ) {
e8b62011 3406 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
d7c255b2 3407 "0122 FDISC Failed (x%x). "
e8b62011
JS
3408 "Fabric Detected Bad WWN\n",
3409 stat.un.lsRjtError);
92d7f7b0
JS
3410 lpfc_vport_set_state(vport,
3411 FC_VPORT_FABRIC_REJ_WWN);
3412 }
3413 break;
7bdedb34
JS
3414 case LSRJT_VENDOR_UNIQUE:
3415 if ((stat.un.b.vendorUnique == 0x45) &&
3416 (cmd == ELS_CMD_FLOGI)) {
3417 goto out_retry;
3418 }
3419 break;
dea3101e
JB
3420 }
3421 break;
3422
3423 case IOSTAT_INTERMED_RSP:
3424 case IOSTAT_BA_RJT:
3425 break;
3426
3427 default:
3428 break;
3429 }
3430
488d1469 3431 if (did == FDMI_DID)
dea3101e 3432 retry = 1;
dea3101e 3433
df9e1b59 3434 if ((cmd == ELS_CMD_FLOGI) &&
76a95d75 3435 (phba->fc_topology != LPFC_TOPOLOGY_LOOP) &&
1b32f6aa 3436 !lpfc_error_lost_link(irsp)) {
98c9ea5c
JS
3437 /* FLOGI retry policy */
3438 retry = 1;
df9e1b59 3439 /* retry FLOGI forever */
6eae4303
JS
3440 if (phba->link_flag != LS_LOOPBACK_MODE)
3441 maxretry = 0;
3442 else
3443 maxretry = 2;
3444
6669f9bb
JS
3445 if (cmdiocb->retry >= 100)
3446 delay = 5000;
3447 else if (cmdiocb->retry >= 32)
98c9ea5c 3448 delay = 1000;
df9e1b59
JS
3449 } else if ((cmd == ELS_CMD_FDISC) && !lpfc_error_lost_link(irsp)) {
3450 /* retry FDISCs every second up to devloss */
3451 retry = 1;
3452 maxretry = vport->cfg_devloss_tmo;
3453 delay = 1000;
98c9ea5c
JS
3454 }
3455
6669f9bb
JS
3456 cmdiocb->retry++;
3457 if (maxretry && (cmdiocb->retry >= maxretry)) {
dea3101e
JB
3458 phba->fc_stat.elsRetryExceeded++;
3459 retry = 0;
3460 }
3461
ed957684
JS
3462 if ((vport->load_flag & FC_UNLOADING) != 0)
3463 retry = 0;
3464
7bdedb34 3465out_retry:
dea3101e 3466 if (retry) {
38b92ef8
JS
3467 if ((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_FDISC)) {
3468 /* Stop retrying PLOGI and FDISC if in FCF discovery */
3469 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3470 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3471 "2849 Stop retry ELS command "
3472 "x%x to remote NPORT x%x, "
3473 "Data: x%x x%x\n", cmd, did,
3474 cmdiocb->retry, delay);
3475 return 0;
3476 }
3477 }
dea3101e
JB
3478
3479 /* Retry ELS command <elsCmd> to remote NPORT <did> */
e8b62011
JS
3480 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3481 "0107 Retry ELS command x%x to remote "
3482 "NPORT x%x Data: x%x x%x\n",
3483 cmd, did, cmdiocb->retry, delay);
dea3101e 3484
858c9f6c
JS
3485 if (((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_ADISC)) &&
3486 ((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) ||
e3d2b802
JS
3487 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) !=
3488 IOERR_NO_RESOURCES))) {
858c9f6c
JS
3489 /* Don't reset timer for no resources */
3490
dea3101e 3491 /* If discovery / RSCN timer is running, reset it */
2e0fef85 3492 if (timer_pending(&vport->fc_disctmo) ||
92d7f7b0 3493 (vport->fc_flag & FC_RSCN_MODE))
2e0fef85 3494 lpfc_set_disctmo(vport);
dea3101e
JB
3495 }
3496
3497 phba->fc_stat.elsXmitRetry++;
58da1ffb 3498 if (ndlp && NLP_CHK_NODE_ACT(ndlp) && delay) {
dea3101e
JB
3499 phba->fc_stat.elsDelayRetry++;
3500 ndlp->nlp_retry = cmdiocb->retry;
3501
92d7f7b0
JS
3502 /* delay is specified in milliseconds */
3503 mod_timer(&ndlp->nlp_delayfunc,
3504 jiffies + msecs_to_jiffies(delay));
2e0fef85 3505 spin_lock_irq(shost->host_lock);
dea3101e 3506 ndlp->nlp_flag |= NLP_DELAY_TMO;
2e0fef85 3507 spin_unlock_irq(shost->host_lock);
dea3101e 3508
5024ab17 3509 ndlp->nlp_prev_state = ndlp->nlp_state;
a0f2d3ef
JS
3510 if ((cmd == ELS_CMD_PRLI) ||
3511 (cmd == ELS_CMD_NVMEPRLI))
858c9f6c 3512 lpfc_nlp_set_state(vport, ndlp,
4c1b64ba 3513 NLP_STE_PRLI_ISSUE);
858c9f6c
JS
3514 else
3515 lpfc_nlp_set_state(vport, ndlp,
3516 NLP_STE_NPR_NODE);
dea3101e
JB
3517 ndlp->nlp_last_elscmd = cmd;
3518
c9f8735b 3519 return 1;
dea3101e
JB
3520 }
3521 switch (cmd) {
3522 case ELS_CMD_FLOGI:
2e0fef85 3523 lpfc_issue_els_flogi(vport, ndlp, cmdiocb->retry);
c9f8735b 3524 return 1;
92d7f7b0
JS
3525 case ELS_CMD_FDISC:
3526 lpfc_issue_els_fdisc(vport, ndlp, cmdiocb->retry);
3527 return 1;
dea3101e 3528 case ELS_CMD_PLOGI:
58da1ffb 3529 if (ndlp && NLP_CHK_NODE_ACT(ndlp)) {
488d1469 3530 ndlp->nlp_prev_state = ndlp->nlp_state;
2e0fef85 3531 lpfc_nlp_set_state(vport, ndlp,
de0c5b32 3532 NLP_STE_PLOGI_ISSUE);
488d1469 3533 }
2e0fef85 3534 lpfc_issue_els_plogi(vport, did, cmdiocb->retry);
c9f8735b 3535 return 1;
dea3101e 3536 case ELS_CMD_ADISC:
5024ab17 3537 ndlp->nlp_prev_state = ndlp->nlp_state;
2e0fef85
JS
3538 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
3539 lpfc_issue_els_adisc(vport, ndlp, cmdiocb->retry);
c9f8735b 3540 return 1;
dea3101e 3541 case ELS_CMD_PRLI:
a0f2d3ef 3542 case ELS_CMD_NVMEPRLI:
5024ab17 3543 ndlp->nlp_prev_state = ndlp->nlp_state;
2e0fef85
JS
3544 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
3545 lpfc_issue_els_prli(vport, ndlp, cmdiocb->retry);
c9f8735b 3546 return 1;
dea3101e 3547 case ELS_CMD_LOGO:
5024ab17 3548 ndlp->nlp_prev_state = ndlp->nlp_state;
086a345f 3549 lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE);
2e0fef85 3550 lpfc_issue_els_logo(vport, ndlp, cmdiocb->retry);
c9f8735b 3551 return 1;
dea3101e
JB
3552 }
3553 }
dea3101e 3554 /* No retry ELS command <elsCmd> to remote NPORT <did> */
98c9ea5c
JS
3555 if (logerr) {
3556 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3557 "0137 No retry ELS command x%x to remote "
3558 "NPORT x%x: Out of Resources: Error:x%x/%x\n",
3559 cmd, did, irsp->ulpStatus,
3560 irsp->un.ulpWord[4]);
3561 }
3562 else {
3563 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
a58cbd52
JS
3564 "0108 No retry ELS command x%x to remote "
3565 "NPORT x%x Retried:%d Error:x%x/%x\n",
3566 cmd, did, cmdiocb->retry, irsp->ulpStatus,
3567 irsp->un.ulpWord[4]);
98c9ea5c 3568 }
c9f8735b 3569 return 0;
dea3101e
JB
3570}
3571
e59058c4 3572/**
3621a710 3573 * lpfc_els_free_data - Free lpfc dma buffer and data structure with an iocb
e59058c4
JS
3574 * @phba: pointer to lpfc hba data structure.
3575 * @buf_ptr1: pointer to the lpfc DMA buffer data structure.
3576 *
3577 * This routine releases the lpfc DMA (Direct Memory Access) buffer(s)
3578 * associated with a command IOCB back to the lpfc DMA buffer pool. It first
3579 * checks to see whether there is a lpfc DMA buffer associated with the
3580 * response of the command IOCB. If so, it will be released before releasing
3581 * the lpfc DMA buffer associated with the IOCB itself.
3582 *
3583 * Return code
3584 * 0 - Successfully released lpfc DMA buffer (currently, always return 0)
3585 **/
09372820 3586static int
87af33fe
JS
3587lpfc_els_free_data(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr1)
3588{
3589 struct lpfc_dmabuf *buf_ptr;
3590
e59058c4 3591 /* Free the response before processing the command. */
87af33fe
JS
3592 if (!list_empty(&buf_ptr1->list)) {
3593 list_remove_head(&buf_ptr1->list, buf_ptr,
3594 struct lpfc_dmabuf,
3595 list);
3596 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
3597 kfree(buf_ptr);
3598 }
3599 lpfc_mbuf_free(phba, buf_ptr1->virt, buf_ptr1->phys);
3600 kfree(buf_ptr1);
3601 return 0;
3602}
3603
e59058c4 3604/**
3621a710 3605 * lpfc_els_free_bpl - Free lpfc dma buffer and data structure with bpl
e59058c4
JS
3606 * @phba: pointer to lpfc hba data structure.
3607 * @buf_ptr: pointer to the lpfc dma buffer data structure.
3608 *
3609 * This routine releases the lpfc Direct Memory Access (DMA) buffer
3610 * associated with a Buffer Pointer List (BPL) back to the lpfc DMA buffer
3611 * pool.
3612 *
3613 * Return code
3614 * 0 - Successfully released lpfc DMA buffer (currently, always return 0)
3615 **/
09372820 3616static int
87af33fe
JS
3617lpfc_els_free_bpl(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr)
3618{
3619 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
3620 kfree(buf_ptr);
3621 return 0;
3622}
3623
e59058c4 3624/**
3621a710 3625 * lpfc_els_free_iocb - Free a command iocb and its associated resources
e59058c4
JS
3626 * @phba: pointer to lpfc hba data structure.
3627 * @elsiocb: pointer to lpfc els command iocb data structure.
3628 *
3629 * This routine frees a command IOCB and its associated resources. The
3630 * command IOCB data structure contains the reference to various associated
3631 * resources, these fields must be set to NULL if the associated reference
3632 * not present:
3633 * context1 - reference to ndlp
3634 * context2 - reference to cmd
3635 * context2->next - reference to rsp
3636 * context3 - reference to bpl
3637 *
3638 * It first properly decrements the reference count held on ndlp for the
3639 * IOCB completion callback function. If LPFC_DELAY_MEM_FREE flag is not
3640 * set, it invokes the lpfc_els_free_data() routine to release the Direct
3641 * Memory Access (DMA) buffers associated with the IOCB. Otherwise, it
3642 * adds the DMA buffer the @phba data structure for the delayed release.
3643 * If reference to the Buffer Pointer List (BPL) is present, the
3644 * lpfc_els_free_bpl() routine is invoked to release the DMA memory
3645 * associated with BPL. Finally, the lpfc_sli_release_iocbq() routine is
3646 * invoked to release the IOCB data structure back to @phba IOCBQ list.
3647 *
3648 * Return code
3649 * 0 - Success (currently, always return 0)
3650 **/
dea3101e 3651int
329f9bc7 3652lpfc_els_free_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *elsiocb)
dea3101e
JB
3653{
3654 struct lpfc_dmabuf *buf_ptr, *buf_ptr1;
a8adb832
JS
3655 struct lpfc_nodelist *ndlp;
3656
3657 ndlp = (struct lpfc_nodelist *)elsiocb->context1;
3658 if (ndlp) {
3659 if (ndlp->nlp_flag & NLP_DEFER_RM) {
3660 lpfc_nlp_put(ndlp);
dea3101e 3661
a8adb832
JS
3662 /* If the ndlp is not being used by another discovery
3663 * thread, free it.
3664 */
3665 if (!lpfc_nlp_not_used(ndlp)) {
3666 /* If ndlp is being used by another discovery
3667 * thread, just clear NLP_DEFER_RM
3668 */
3669 ndlp->nlp_flag &= ~NLP_DEFER_RM;
3670 }
3671 }
3672 else
3673 lpfc_nlp_put(ndlp);
329f9bc7
JS
3674 elsiocb->context1 = NULL;
3675 }
dea3101e
JB
3676 /* context2 = cmd, context2->next = rsp, context3 = bpl */
3677 if (elsiocb->context2) {
0ff10d46
JS
3678 if (elsiocb->iocb_flag & LPFC_DELAY_MEM_FREE) {
3679 /* Firmware could still be in progress of DMAing
3680 * payload, so don't free data buffer till after
3681 * a hbeat.
3682 */
3683 elsiocb->iocb_flag &= ~LPFC_DELAY_MEM_FREE;
3684 buf_ptr = elsiocb->context2;
3685 elsiocb->context2 = NULL;
3686 if (buf_ptr) {
3687 buf_ptr1 = NULL;
3688 spin_lock_irq(&phba->hbalock);
3689 if (!list_empty(&buf_ptr->list)) {
3690 list_remove_head(&buf_ptr->list,
3691 buf_ptr1, struct lpfc_dmabuf,
3692 list);
3693 INIT_LIST_HEAD(&buf_ptr1->list);
3694 list_add_tail(&buf_ptr1->list,
3695 &phba->elsbuf);
3696 phba->elsbuf_cnt++;
3697 }
3698 INIT_LIST_HEAD(&buf_ptr->list);
3699 list_add_tail(&buf_ptr->list, &phba->elsbuf);
3700 phba->elsbuf_cnt++;
3701 spin_unlock_irq(&phba->hbalock);
3702 }
3703 } else {
3704 buf_ptr1 = (struct lpfc_dmabuf *) elsiocb->context2;
3705 lpfc_els_free_data(phba, buf_ptr1);
8667f515 3706 elsiocb->context2 = NULL;
0ff10d46 3707 }
dea3101e
JB
3708 }
3709
3710 if (elsiocb->context3) {
3711 buf_ptr = (struct lpfc_dmabuf *) elsiocb->context3;
87af33fe 3712 lpfc_els_free_bpl(phba, buf_ptr);
8667f515 3713 elsiocb->context3 = NULL;
dea3101e 3714 }
604a3e30 3715 lpfc_sli_release_iocbq(phba, elsiocb);
dea3101e
JB
3716 return 0;
3717}
3718
e59058c4 3719/**
3621a710 3720 * lpfc_cmpl_els_logo_acc - Completion callback function to logo acc response
e59058c4
JS
3721 * @phba: pointer to lpfc hba data structure.
3722 * @cmdiocb: pointer to lpfc command iocb data structure.
3723 * @rspiocb: pointer to lpfc response iocb data structure.
3724 *
3725 * This routine is the completion callback function to the Logout (LOGO)
3726 * Accept (ACC) Response ELS command. This routine is invoked to indicate
3727 * the completion of the LOGO process. It invokes the lpfc_nlp_not_used() to
3728 * release the ndlp if it has the last reference remaining (reference count
3729 * is 1). If succeeded (meaning ndlp released), it sets the IOCB context1
3730 * field to NULL to inform the following lpfc_els_free_iocb() routine no
3731 * ndlp reference count needs to be decremented. Otherwise, the ndlp
3732 * reference use-count shall be decremented by the lpfc_els_free_iocb()
3733 * routine. Finally, the lpfc_els_free_iocb() is invoked to release the
3734 * IOCB data structure.
3735 **/
dea3101e 3736static void
2e0fef85
JS
3737lpfc_cmpl_els_logo_acc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
3738 struct lpfc_iocbq *rspiocb)
dea3101e 3739{
2e0fef85
JS
3740 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
3741 struct lpfc_vport *vport = cmdiocb->vport;
858c9f6c
JS
3742 IOCB_t *irsp;
3743
3744 irsp = &rspiocb->iocb;
3745 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
3746 "ACC LOGO cmpl: status:x%x/x%x did:x%x",
3747 irsp->ulpStatus, irsp->un.ulpWord[4], ndlp->nlp_DID);
dea3101e 3748 /* ACC to LOGO completes to NPort <nlp_DID> */
e8b62011
JS
3749 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3750 "0109 ACC to LOGO completes to NPort x%x "
3751 "Data: x%x x%x x%x\n",
3752 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
3753 ndlp->nlp_rpi);
87af33fe
JS
3754
3755 if (ndlp->nlp_state == NLP_STE_NPR_NODE) {
3756 /* NPort Recovery mode or node is just allocated */
3757 if (!lpfc_nlp_not_used(ndlp)) {
3758 /* If the ndlp is being used by another discovery
3759 * thread, just unregister the RPI.
3760 */
3761 lpfc_unreg_rpi(vport, ndlp);
fa4066b6
JS
3762 } else {
3763 /* Indicate the node has already released, should
3764 * not reference to it from within lpfc_els_free_iocb.
3765 */
3766 cmdiocb->context1 = NULL;
87af33fe 3767 }
dea3101e 3768 }
73d91e50
JS
3769
3770 /*
3771 * The driver received a LOGO from the rport and has ACK'd it.
df9e1b59 3772 * At this point, the driver is done so release the IOCB
73d91e50 3773 */
dea3101e 3774 lpfc_els_free_iocb(phba, cmdiocb);
dea3101e
JB
3775}
3776
e59058c4 3777/**
3621a710 3778 * lpfc_mbx_cmpl_dflt_rpi - Completion callbk func for unreg dflt rpi mbox cmd
e59058c4
JS
3779 * @phba: pointer to lpfc hba data structure.
3780 * @pmb: pointer to the driver internal queue element for mailbox command.
3781 *
3782 * This routine is the completion callback function for unregister default
3783 * RPI (Remote Port Index) mailbox command to the @phba. It simply releases
3784 * the associated lpfc Direct Memory Access (DMA) buffer back to the pool and
3785 * decrements the ndlp reference count held for this completion callback
3786 * function. After that, it invokes the lpfc_nlp_not_used() to check
3787 * whether there is only one reference left on the ndlp. If so, it will
3788 * perform one more decrement and trigger the release of the ndlp.
3789 **/
858c9f6c
JS
3790void
3791lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3792{
3793 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
3794 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
3795
3796 pmb->context1 = NULL;
d439d286
JS
3797 pmb->context2 = NULL;
3798
858c9f6c
JS
3799 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3800 kfree(mp);
3801 mempool_free(pmb, phba->mbox_mem_pool);
086a345f 3802 if (ndlp) {
be6bb941
JS
3803 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
3804 "0006 rpi%x DID:%x flg:%x %d map:%x %p\n",
3805 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
2c935bc5 3806 kref_read(&ndlp->kref),
be6bb941 3807 ndlp->nlp_usg_map, ndlp);
086a345f
JS
3808 if (NLP_CHK_NODE_ACT(ndlp)) {
3809 lpfc_nlp_put(ndlp);
3810 /* This is the end of the default RPI cleanup logic for
3811 * this ndlp. If no other discovery threads are using
3812 * this ndlp, free all resources associated with it.
3813 */
3814 lpfc_nlp_not_used(ndlp);
3815 } else {
3816 lpfc_drop_node(ndlp->vport, ndlp);
3817 }
a8adb832 3818 }
3772a991 3819
858c9f6c
JS
3820 return;
3821}
3822
e59058c4 3823/**
3621a710 3824 * lpfc_cmpl_els_rsp - Completion callback function for els response iocb cmd
e59058c4
JS
3825 * @phba: pointer to lpfc hba data structure.
3826 * @cmdiocb: pointer to lpfc command iocb data structure.
3827 * @rspiocb: pointer to lpfc response iocb data structure.
3828 *
3829 * This routine is the completion callback function for ELS Response IOCB
3830 * command. In normal case, this callback function just properly sets the
3831 * nlp_flag bitmap in the ndlp data structure, if the mbox command reference
3832 * field in the command IOCB is not NULL, the referred mailbox command will
3833 * be send out, and then invokes the lpfc_els_free_iocb() routine to release
3834 * the IOCB. Under error conditions, such as when a LS_RJT is returned or a
3835 * link down event occurred during the discovery, the lpfc_nlp_not_used()
3836 * routine shall be invoked trying to release the ndlp if no other threads
3837 * are currently referring it.
3838 **/
dea3101e 3839static void
858c9f6c 3840lpfc_cmpl_els_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
329f9bc7 3841 struct lpfc_iocbq *rspiocb)
dea3101e 3842{
2e0fef85
JS
3843 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
3844 struct lpfc_vport *vport = ndlp ? ndlp->vport : NULL;
3845 struct Scsi_Host *shost = vport ? lpfc_shost_from_vport(vport) : NULL;
87af33fe
JS
3846 IOCB_t *irsp;
3847 uint8_t *pcmd;
dea3101e 3848 LPFC_MBOXQ_t *mbox = NULL;
2e0fef85 3849 struct lpfc_dmabuf *mp = NULL;
87af33fe 3850 uint32_t ls_rjt = 0;
dea3101e 3851
33ccf8d1
JS
3852 irsp = &rspiocb->iocb;
3853
dea3101e
JB
3854 if (cmdiocb->context_un.mbox)
3855 mbox = cmdiocb->context_un.mbox;
3856
fa4066b6
JS
3857 /* First determine if this is a LS_RJT cmpl. Note, this callback
3858 * function can have cmdiocb->contest1 (ndlp) field set to NULL.
3859 */
87af33fe 3860 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt);
58da1ffb
JS
3861 if (ndlp && NLP_CHK_NODE_ACT(ndlp) &&
3862 (*((uint32_t *) (pcmd)) == ELS_CMD_LS_RJT)) {
fa4066b6 3863 /* A LS_RJT associated with Default RPI cleanup has its own
3ad2f3fb 3864 * separate code path.
87af33fe
JS
3865 */
3866 if (!(ndlp->nlp_flag & NLP_RM_DFLT_RPI))
3867 ls_rjt = 1;
3868 }
3869
dea3101e 3870 /* Check to see if link went down during discovery */
58da1ffb 3871 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || lpfc_els_chk_latt(vport)) {
dea3101e 3872 if (mbox) {
14691150
JS
3873 mp = (struct lpfc_dmabuf *) mbox->context1;
3874 if (mp) {
3875 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3876 kfree(mp);
3877 }
329f9bc7 3878 mempool_free(mbox, phba->mbox_mem_pool);
dea3101e 3879 }
58da1ffb
JS
3880 if (ndlp && NLP_CHK_NODE_ACT(ndlp) &&
3881 (ndlp->nlp_flag & NLP_RM_DFLT_RPI))
fa4066b6 3882 if (lpfc_nlp_not_used(ndlp)) {
98c9ea5c 3883 ndlp = NULL;
fa4066b6
JS
3884 /* Indicate the node has already released,
3885 * should not reference to it from within
3886 * the routine lpfc_els_free_iocb.
3887 */
3888 cmdiocb->context1 = NULL;
3889 }
dea3101e
JB
3890 goto out;
3891 }
3892
858c9f6c 3893 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
51ef4c26 3894 "ELS rsp cmpl: status:x%x/x%x did:x%x",
858c9f6c 3895 irsp->ulpStatus, irsp->un.ulpWord[4],
51ef4c26 3896 cmdiocb->iocb.un.elsreq64.remoteID);
dea3101e 3897 /* ELS response tag <ulpIoTag> completes */
e8b62011
JS
3898 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3899 "0110 ELS response tag x%x completes "
3900 "Data: x%x x%x x%x x%x x%x x%x x%x\n",
3901 cmdiocb->iocb.ulpIoTag, rspiocb->iocb.ulpStatus,
3902 rspiocb->iocb.un.ulpWord[4], rspiocb->iocb.ulpTimeout,
3903 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
3904 ndlp->nlp_rpi);
dea3101e
JB
3905 if (mbox) {
3906 if ((rspiocb->iocb.ulpStatus == 0)
3907 && (ndlp->nlp_flag & NLP_ACC_REGLOGIN)) {
2e0fef85 3908 lpfc_unreg_rpi(vport, ndlp);
e47c9093
JS
3909 /* Increment reference count to ndlp to hold the
3910 * reference to ndlp for the callback function.
3911 */
329f9bc7 3912 mbox->context2 = lpfc_nlp_get(ndlp);
2e0fef85 3913 mbox->vport = vport;
858c9f6c
JS
3914 if (ndlp->nlp_flag & NLP_RM_DFLT_RPI) {
3915 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG;
3916 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
3917 }
3918 else {
3919 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
3920 ndlp->nlp_prev_state = ndlp->nlp_state;
3921 lpfc_nlp_set_state(vport, ndlp,
2e0fef85 3922 NLP_STE_REG_LOGIN_ISSUE);
858c9f6c 3923 }
4b7789b7
JS
3924
3925 ndlp->nlp_flag |= NLP_REG_LOGIN_SEND;
0b727fea 3926 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
e47c9093 3927 != MBX_NOT_FINISHED)
dea3101e 3928 goto out;
4b7789b7
JS
3929
3930 /* Decrement the ndlp reference count we
3931 * set for this failed mailbox command.
3932 */
3933 lpfc_nlp_put(ndlp);
3934 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
98c9ea5c
JS
3935
3936 /* ELS rsp: Cannot issue reg_login for <NPortid> */
3937 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3938 "0138 ELS rsp: Cannot issue reg_login for x%x "
3939 "Data: x%x x%x x%x\n",
3940 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
3941 ndlp->nlp_rpi);
3942
fa4066b6 3943 if (lpfc_nlp_not_used(ndlp)) {
98c9ea5c 3944 ndlp = NULL;
fa4066b6
JS
3945 /* Indicate node has already been released,
3946 * should not reference to it from within
3947 * the routine lpfc_els_free_iocb.
3948 */
3949 cmdiocb->context1 = NULL;
3950 }
dea3101e 3951 } else {
858c9f6c
JS
3952 /* Do not drop node for lpfc_els_abort'ed ELS cmds */
3953 if (!lpfc_error_lost_link(irsp) &&
3954 ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
fa4066b6 3955 if (lpfc_nlp_not_used(ndlp)) {
98c9ea5c 3956 ndlp = NULL;
fa4066b6
JS
3957 /* Indicate node has already been
3958 * released, should not reference
3959 * to it from within the routine
3960 * lpfc_els_free_iocb.
3961 */
3962 cmdiocb->context1 = NULL;
3963 }
dea3101e
JB
3964 }
3965 }
14691150
JS
3966 mp = (struct lpfc_dmabuf *) mbox->context1;
3967 if (mp) {
3968 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3969 kfree(mp);
3970 }
3971 mempool_free(mbox, phba->mbox_mem_pool);
dea3101e
JB
3972 }
3973out:
58da1ffb 3974 if (ndlp && NLP_CHK_NODE_ACT(ndlp)) {
2e0fef85 3975 spin_lock_irq(shost->host_lock);
858c9f6c 3976 ndlp->nlp_flag &= ~(NLP_ACC_REGLOGIN | NLP_RM_DFLT_RPI);
2e0fef85 3977 spin_unlock_irq(shost->host_lock);
87af33fe
JS
3978
3979 /* If the node is not being used by another discovery thread,
3980 * and we are sending a reject, we are done with it.
3981 * Release driver reference count here and free associated
3982 * resources.
3983 */
3984 if (ls_rjt)
fa4066b6
JS
3985 if (lpfc_nlp_not_used(ndlp))
3986 /* Indicate node has already been released,
3987 * should not reference to it from within
3988 * the routine lpfc_els_free_iocb.
3989 */
3990 cmdiocb->context1 = NULL;
4b7789b7 3991
dea3101e 3992 }
87af33fe 3993
dea3101e
JB
3994 lpfc_els_free_iocb(phba, cmdiocb);
3995 return;
3996}
3997
e59058c4 3998/**
3621a710 3999 * lpfc_els_rsp_acc - Prepare and issue an acc response iocb command
e59058c4
JS
4000 * @vport: pointer to a host virtual N_Port data structure.
4001 * @flag: the els command code to be accepted.
4002 * @oldiocb: pointer to the original lpfc command iocb data structure.
4003 * @ndlp: pointer to a node-list data structure.
4004 * @mbox: pointer to the driver internal queue element for mailbox command.
4005 *
4006 * This routine prepares and issues an Accept (ACC) response IOCB
4007 * command. It uses the @flag to properly set up the IOCB field for the
4008 * specific ACC response command to be issued and invokes the
4009 * lpfc_sli_issue_iocb() routine to send out ACC response IOCB. If a
4010 * @mbox pointer is passed in, it will be put into the context_un.mbox
4011 * field of the IOCB for the completion callback function to issue the
4012 * mailbox command to the HBA later when callback is invoked.
4013 *
4014 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4015 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4016 * will be stored into the context1 field of the IOCB for the completion
4017 * callback function to the corresponding response ELS IOCB command.
4018 *
4019 * Return code
4020 * 0 - Successfully issued acc response
4021 * 1 - Failed to issue acc response
4022 **/
dea3101e 4023int
2e0fef85
JS
4024lpfc_els_rsp_acc(struct lpfc_vport *vport, uint32_t flag,
4025 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp,
51ef4c26 4026 LPFC_MBOXQ_t *mbox)
dea3101e 4027{
2e0fef85
JS
4028 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4029 struct lpfc_hba *phba = vport->phba;
dea3101e
JB
4030 IOCB_t *icmd;
4031 IOCB_t *oldcmd;
4032 struct lpfc_iocbq *elsiocb;
dea3101e 4033 uint8_t *pcmd;
d6de08cc 4034 struct serv_parm *sp;
dea3101e
JB
4035 uint16_t cmdsize;
4036 int rc;
82d9a2a2 4037 ELS_PKT *els_pkt_ptr;
dea3101e 4038
dea3101e
JB
4039 oldcmd = &oldiocb->iocb;
4040
4041 switch (flag) {
4042 case ELS_CMD_ACC:
92d7f7b0 4043 cmdsize = sizeof(uint32_t);
2e0fef85
JS
4044 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
4045 ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
488d1469 4046 if (!elsiocb) {
2e0fef85 4047 spin_lock_irq(shost->host_lock);
5024ab17 4048 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
2e0fef85 4049 spin_unlock_irq(shost->host_lock);
c9f8735b 4050 return 1;
dea3101e 4051 }
2e0fef85 4052
dea3101e 4053 icmd = &elsiocb->iocb;
7851fe2c
JS
4054 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4055 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
dea3101e
JB
4056 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4057 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
92d7f7b0 4058 pcmd += sizeof(uint32_t);
858c9f6c
JS
4059
4060 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4061 "Issue ACC: did:x%x flg:x%x",
4062 ndlp->nlp_DID, ndlp->nlp_flag, 0);
dea3101e 4063 break;
d6de08cc 4064 case ELS_CMD_FLOGI:
dea3101e 4065 case ELS_CMD_PLOGI:
92d7f7b0 4066 cmdsize = (sizeof(struct serv_parm) + sizeof(uint32_t));
2e0fef85
JS
4067 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
4068 ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
488d1469 4069 if (!elsiocb)
c9f8735b 4070 return 1;
488d1469 4071
dea3101e 4072 icmd = &elsiocb->iocb;
7851fe2c
JS
4073 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4074 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
dea3101e
JB
4075 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4076
4077 if (mbox)
4078 elsiocb->context_un.mbox = mbox;
4079
4080 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
92d7f7b0 4081 pcmd += sizeof(uint32_t);
d6de08cc
JS
4082 sp = (struct serv_parm *)pcmd;
4083
4084 if (flag == ELS_CMD_FLOGI) {
4085 /* Copy the received service parameters back */
4086 memcpy(sp, &phba->fc_fabparam,
4087 sizeof(struct serv_parm));
4088
4089 /* Clear the F_Port bit */
4090 sp->cmn.fPort = 0;
4091
4092 /* Mark all class service parameters as invalid */
4093 sp->cls1.classValid = 0;
4094 sp->cls2.classValid = 0;
4095 sp->cls3.classValid = 0;
4096 sp->cls4.classValid = 0;
4097
4098 /* Copy our worldwide names */
4099 memcpy(&sp->portName, &vport->fc_sparam.portName,
4100 sizeof(struct lpfc_name));
4101 memcpy(&sp->nodeName, &vport->fc_sparam.nodeName,
4102 sizeof(struct lpfc_name));
8c258641 4103 } else {
d6de08cc
JS
4104 memcpy(pcmd, &vport->fc_sparam,
4105 sizeof(struct serv_parm));
e0165f20 4106
8c258641
JS
4107 sp->cmn.valid_vendor_ver_level = 0;
4108 memset(sp->un.vendorVersion, 0,
4109 sizeof(sp->un.vendorVersion));
4110
4111 /* If our firmware supports this feature, convey that
4112 * info to the target using the vendor specific field.
4113 */
4114 if (phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) {
4115 sp->cmn.valid_vendor_ver_level = 1;
4116 sp->un.vv.vid = cpu_to_be32(LPFC_VV_EMLX_ID);
4117 sp->un.vv.flags =
4118 cpu_to_be32(LPFC_VV_SUPPRESS_RSP);
4119 }
4120 }
4121
858c9f6c 4122 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
d6de08cc 4123 "Issue ACC FLOGI/PLOGI: did:x%x flg:x%x",
858c9f6c 4124 ndlp->nlp_DID, ndlp->nlp_flag, 0);
dea3101e 4125 break;
82d9a2a2 4126 case ELS_CMD_PRLO:
92d7f7b0 4127 cmdsize = sizeof(uint32_t) + sizeof(PRLO);
2e0fef85 4128 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
82d9a2a2
JS
4129 ndlp, ndlp->nlp_DID, ELS_CMD_PRLO);
4130 if (!elsiocb)
4131 return 1;
4132
4133 icmd = &elsiocb->iocb;
7851fe2c
JS
4134 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4135 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
82d9a2a2
JS
4136 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4137
4138 memcpy(pcmd, ((struct lpfc_dmabuf *) oldiocb->context2)->virt,
92d7f7b0 4139 sizeof(uint32_t) + sizeof(PRLO));
82d9a2a2
JS
4140 *((uint32_t *) (pcmd)) = ELS_CMD_PRLO_ACC;
4141 els_pkt_ptr = (ELS_PKT *) pcmd;
4142 els_pkt_ptr->un.prlo.acceptRspCode = PRLO_REQ_EXECUTED;
858c9f6c
JS
4143
4144 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4145 "Issue ACC PRLO: did:x%x flg:x%x",
4146 ndlp->nlp_DID, ndlp->nlp_flag, 0);
82d9a2a2 4147 break;
dea3101e 4148 default:
c9f8735b 4149 return 1;
dea3101e 4150 }
dea3101e 4151 /* Xmit ELS ACC response tag <ulpIoTag> */
e8b62011
JS
4152 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4153 "0128 Xmit ELS ACC response tag x%x, XRI: x%x, "
e6446439
JS
4154 "DID: x%x, nlp_flag: x%x nlp_state: x%x RPI: x%x "
4155 "fc_flag x%x\n",
e8b62011
JS
4156 elsiocb->iotag, elsiocb->iocb.ulpContext,
4157 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
e6446439 4158 ndlp->nlp_rpi, vport->fc_flag);
dea3101e 4159 if (ndlp->nlp_flag & NLP_LOGO_ACC) {
2e0fef85 4160 spin_lock_irq(shost->host_lock);
7c5e518c
JS
4161 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED ||
4162 ndlp->nlp_flag & NLP_REG_LOGIN_SEND))
4163 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
2e0fef85 4164 spin_unlock_irq(shost->host_lock);
dea3101e
JB
4165 elsiocb->iocb_cmpl = lpfc_cmpl_els_logo_acc;
4166 } else {
858c9f6c 4167 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
dea3101e
JB
4168 }
4169
4170 phba->fc_stat.elsXmitACC++;
3772a991 4171 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
dea3101e
JB
4172 if (rc == IOCB_ERROR) {
4173 lpfc_els_free_iocb(phba, elsiocb);
c9f8735b 4174 return 1;
dea3101e 4175 }
c9f8735b 4176 return 0;
dea3101e
JB
4177}
4178
e59058c4 4179/**
3621a710 4180 * lpfc_els_rsp_reject - Propare and issue a rjt response iocb command
e59058c4
JS
4181 * @vport: pointer to a virtual N_Port data structure.
4182 * @rejectError:
4183 * @oldiocb: pointer to the original lpfc command iocb data structure.
4184 * @ndlp: pointer to a node-list data structure.
4185 * @mbox: pointer to the driver internal queue element for mailbox command.
4186 *
4187 * This routine prepares and issue an Reject (RJT) response IOCB
4188 * command. If a @mbox pointer is passed in, it will be put into the
4189 * context_un.mbox field of the IOCB for the completion callback function
4190 * to issue to the HBA later.
4191 *
4192 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4193 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4194 * will be stored into the context1 field of the IOCB for the completion
4195 * callback function to the reject response ELS IOCB command.
4196 *
4197 * Return code
4198 * 0 - Successfully issued reject response
4199 * 1 - Failed to issue reject response
4200 **/
dea3101e 4201int
2e0fef85 4202lpfc_els_rsp_reject(struct lpfc_vport *vport, uint32_t rejectError,
858c9f6c
JS
4203 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp,
4204 LPFC_MBOXQ_t *mbox)
dea3101e 4205{
2e0fef85 4206 struct lpfc_hba *phba = vport->phba;
dea3101e
JB
4207 IOCB_t *icmd;
4208 IOCB_t *oldcmd;
4209 struct lpfc_iocbq *elsiocb;
dea3101e
JB
4210 uint8_t *pcmd;
4211 uint16_t cmdsize;
4212 int rc;
4213
92d7f7b0 4214 cmdsize = 2 * sizeof(uint32_t);
2e0fef85
JS
4215 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
4216 ndlp->nlp_DID, ELS_CMD_LS_RJT);
488d1469 4217 if (!elsiocb)
c9f8735b 4218 return 1;
dea3101e
JB
4219
4220 icmd = &elsiocb->iocb;
4221 oldcmd = &oldiocb->iocb;
7851fe2c
JS
4222 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4223 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
dea3101e
JB
4224 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4225
4226 *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT;
92d7f7b0 4227 pcmd += sizeof(uint32_t);
dea3101e
JB
4228 *((uint32_t *) (pcmd)) = rejectError;
4229
51ef4c26 4230 if (mbox)
858c9f6c 4231 elsiocb->context_un.mbox = mbox;
858c9f6c 4232
dea3101e 4233 /* Xmit ELS RJT <err> response tag <ulpIoTag> */
e8b62011
JS
4234 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4235 "0129 Xmit ELS RJT x%x response tag x%x "
4236 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
4237 "rpi x%x\n",
4238 rejectError, elsiocb->iotag,
4239 elsiocb->iocb.ulpContext, ndlp->nlp_DID,
4240 ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
858c9f6c
JS
4241 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4242 "Issue LS_RJT: did:x%x flg:x%x err:x%x",
4243 ndlp->nlp_DID, ndlp->nlp_flag, rejectError);
4244
dea3101e 4245 phba->fc_stat.elsXmitLSRJT++;
858c9f6c 4246 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
3772a991 4247 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
51ef4c26 4248
dea3101e
JB
4249 if (rc == IOCB_ERROR) {
4250 lpfc_els_free_iocb(phba, elsiocb);
c9f8735b 4251 return 1;
dea3101e 4252 }
c9f8735b 4253 return 0;
dea3101e
JB
4254}
4255
e59058c4 4256/**
3621a710 4257 * lpfc_els_rsp_adisc_acc - Prepare and issue acc response to adisc iocb cmd
e59058c4
JS
4258 * @vport: pointer to a virtual N_Port data structure.
4259 * @oldiocb: pointer to the original lpfc command iocb data structure.
4260 * @ndlp: pointer to a node-list data structure.
4261 *
4262 * This routine prepares and issues an Accept (ACC) response to Address
4263 * Discover (ADISC) ELS command. It simply prepares the payload of the IOCB
4264 * and invokes the lpfc_sli_issue_iocb() routine to send out the command.
4265 *
4266 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4267 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4268 * will be stored into the context1 field of the IOCB for the completion
4269 * callback function to the ADISC Accept response ELS IOCB command.
4270 *
4271 * Return code
4272 * 0 - Successfully issued acc adisc response
4273 * 1 - Failed to issue adisc acc response
4274 **/
dea3101e 4275int
2e0fef85
JS
4276lpfc_els_rsp_adisc_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb,
4277 struct lpfc_nodelist *ndlp)
dea3101e 4278{
2e0fef85 4279 struct lpfc_hba *phba = vport->phba;
dea3101e 4280 ADISC *ap;
2e0fef85 4281 IOCB_t *icmd, *oldcmd;
dea3101e 4282 struct lpfc_iocbq *elsiocb;
dea3101e
JB
4283 uint8_t *pcmd;
4284 uint16_t cmdsize;
4285 int rc;
4286
92d7f7b0 4287 cmdsize = sizeof(uint32_t) + sizeof(ADISC);
2e0fef85
JS
4288 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
4289 ndlp->nlp_DID, ELS_CMD_ACC);
488d1469 4290 if (!elsiocb)
c9f8735b 4291 return 1;
dea3101e 4292
5b8bd0c9
JS
4293 icmd = &elsiocb->iocb;
4294 oldcmd = &oldiocb->iocb;
7851fe2c
JS
4295 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4296 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
5b8bd0c9 4297
dea3101e 4298 /* Xmit ADISC ACC response tag <ulpIoTag> */
e8b62011
JS
4299 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4300 "0130 Xmit ADISC ACC response iotag x%x xri: "
4301 "x%x, did x%x, nlp_flag x%x, nlp_state x%x rpi x%x\n",
4302 elsiocb->iotag, elsiocb->iocb.ulpContext,
4303 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
4304 ndlp->nlp_rpi);
dea3101e
JB
4305 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4306
4307 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
92d7f7b0 4308 pcmd += sizeof(uint32_t);
dea3101e
JB
4309
4310 ap = (ADISC *) (pcmd);
4311 ap->hardAL_PA = phba->fc_pref_ALPA;
92d7f7b0
JS
4312 memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name));
4313 memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
2e0fef85 4314 ap->DID = be32_to_cpu(vport->fc_myDID);
dea3101e 4315
858c9f6c
JS
4316 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4317 "Issue ACC ADISC: did:x%x flg:x%x",
4318 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4319
dea3101e 4320 phba->fc_stat.elsXmitACC++;
858c9f6c 4321 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
3772a991 4322 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
dea3101e
JB
4323 if (rc == IOCB_ERROR) {
4324 lpfc_els_free_iocb(phba, elsiocb);
c9f8735b 4325 return 1;
dea3101e 4326 }
c9f8735b 4327 return 0;
dea3101e
JB
4328}
4329
e59058c4 4330/**
3621a710 4331 * lpfc_els_rsp_prli_acc - Prepare and issue acc response to prli iocb cmd
e59058c4
JS
4332 * @vport: pointer to a virtual N_Port data structure.
4333 * @oldiocb: pointer to the original lpfc command iocb data structure.
4334 * @ndlp: pointer to a node-list data structure.
4335 *
4336 * This routine prepares and issues an Accept (ACC) response to Process
4337 * Login (PRLI) ELS command. It simply prepares the payload of the IOCB
4338 * and invokes the lpfc_sli_issue_iocb() routine to send out the command.
4339 *
4340 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4341 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4342 * will be stored into the context1 field of the IOCB for the completion
4343 * callback function to the PRLI Accept response ELS IOCB command.
4344 *
4345 * Return code
4346 * 0 - Successfully issued acc prli response
4347 * 1 - Failed to issue acc prli response
4348 **/
dea3101e 4349int
2e0fef85 4350lpfc_els_rsp_prli_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb,
5b8bd0c9 4351 struct lpfc_nodelist *ndlp)
dea3101e 4352{
2e0fef85 4353 struct lpfc_hba *phba = vport->phba;
dea3101e 4354 PRLI *npr;
a0f2d3ef 4355 struct lpfc_nvme_prli *npr_nvme;
dea3101e
JB
4356 lpfc_vpd_t *vpd;
4357 IOCB_t *icmd;
4358 IOCB_t *oldcmd;
4359 struct lpfc_iocbq *elsiocb;
dea3101e
JB
4360 uint8_t *pcmd;
4361 uint16_t cmdsize;
a0f2d3ef
JS
4362 uint32_t prli_fc4_req, *req_payload;
4363 struct lpfc_dmabuf *req_buf;
dea3101e 4364 int rc;
a0f2d3ef
JS
4365 u32 elsrspcmd;
4366
4367 /* Need the incoming PRLI payload to determine if the ACC is for an
4368 * FC4 or NVME PRLI type. The PRLI type is at word 1.
4369 */
4370 req_buf = (struct lpfc_dmabuf *)oldiocb->context2;
4371 req_payload = (((uint32_t *)req_buf->virt) + 1);
4372
4373 /* PRLI type payload is at byte 3 for FCP or NVME. */
4374 prli_fc4_req = be32_to_cpu(*req_payload);
4375 prli_fc4_req = (prli_fc4_req >> 24) & 0xff;
4376 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4377 "6127 PRLI_ACC: Req Type x%x, Word1 x%08x\n",
4378 prli_fc4_req, *((uint32_t *)req_payload));
4379
4380 if (prli_fc4_req == PRLI_FCP_TYPE) {
4381 cmdsize = sizeof(uint32_t) + sizeof(PRLI);
4382 elsrspcmd = (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK));
4383 } else if (prli_fc4_req & PRLI_NVME_TYPE) {
4384 cmdsize = sizeof(uint32_t) + sizeof(struct lpfc_nvme_prli);
4385 elsrspcmd = (ELS_CMD_ACC | (ELS_CMD_NVMEPRLI & ~ELS_RSP_MASK));
4386 } else {
4387 return 1;
4388 }
dea3101e 4389
2e0fef85 4390 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
a0f2d3ef 4391 ndlp->nlp_DID, elsrspcmd);
c9f8735b
JW
4392 if (!elsiocb)
4393 return 1;
dea3101e 4394
5b8bd0c9
JS
4395 icmd = &elsiocb->iocb;
4396 oldcmd = &oldiocb->iocb;
7851fe2c
JS
4397 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4398 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4399
dea3101e 4400 /* Xmit PRLI ACC response tag <ulpIoTag> */
e8b62011
JS
4401 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4402 "0131 Xmit PRLI ACC response tag x%x xri x%x, "
4403 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
4404 elsiocb->iotag, elsiocb->iocb.ulpContext,
4405 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
4406 ndlp->nlp_rpi);
dea3101e 4407 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
a0f2d3ef 4408 memset(pcmd, 0, cmdsize);
dea3101e 4409
c07f10cd 4410 *((uint32_t *)(pcmd)) = elsrspcmd;
92d7f7b0 4411 pcmd += sizeof(uint32_t);
dea3101e
JB
4412
4413 /* For PRLI, remainder of payload is PRLI parameter page */
dea3101e 4414 vpd = &phba->vpd;
dea3101e 4415
a0f2d3ef
JS
4416 if (prli_fc4_req == PRLI_FCP_TYPE) {
4417 /*
4418 * If the remote port is a target and our firmware version
4419 * is 3.20 or later, set the following bits for FC-TAPE
4420 * support.
4421 */
4422 npr = (PRLI *) pcmd;
4423 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
4424 (vpd->rev.feaLevelHigh >= 0x02)) {
4425 npr->ConfmComplAllowed = 1;
4426 npr->Retry = 1;
4427 npr->TaskRetryIdReq = 1;
4428 }
4429 npr->acceptRspCode = PRLI_REQ_EXECUTED;
4430 npr->estabImagePair = 1;
4431 npr->readXferRdyDis = 1;
4432 npr->ConfmComplAllowed = 1;
4433 npr->prliType = PRLI_FCP_TYPE;
4434 npr->initiatorFunc = 1;
4435 } else if (prli_fc4_req & PRLI_NVME_TYPE) {
4436 /* Respond with an NVME PRLI Type */
4437 npr_nvme = (struct lpfc_nvme_prli *) pcmd;
4438 bf_set(prli_type_code, npr_nvme, PRLI_NVME_TYPE);
4439 bf_set(prli_estabImagePair, npr_nvme, 0); /* Should be 0 */
4440 bf_set(prli_acc_rsp_code, npr_nvme, PRLI_REQ_EXECUTED);
8c258641
JS
4441 if (phba->nvmet_support) {
4442 bf_set(prli_tgt, npr_nvme, 1);
4443 bf_set(prli_disc, npr_nvme, 1);
4444 if (phba->cfg_nvme_enable_fb) {
4445 bf_set(prli_fba, npr_nvme, 1);
4446
4447 /* TBD. Target mode needs to post buffers
4448 * that support the configured first burst
4449 * byte size.
4450 */
4451 bf_set(prli_fb_sz, npr_nvme,
4452 phba->cfg_nvmet_fb_size);
4453 }
4454 } else {
4455 bf_set(prli_init, npr_nvme, 1);
4456 }
a0f2d3ef
JS
4457
4458 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC,
4459 "6015 NVME issue PRLI ACC word1 x%08x "
4460 "word4 x%08x word5 x%08x flag x%x, "
4461 "fcp_info x%x nlp_type x%x\n",
4462 npr_nvme->word1, npr_nvme->word4,
4463 npr_nvme->word5, ndlp->nlp_flag,
4464 ndlp->nlp_fcp_info, ndlp->nlp_type);
4465 npr_nvme->word1 = cpu_to_be32(npr_nvme->word1);
4466 npr_nvme->word4 = cpu_to_be32(npr_nvme->word4);
4467 npr_nvme->word5 = cpu_to_be32(npr_nvme->word5);
4468 } else
4469 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
4470 "6128 Unknown FC_TYPE x%x x%x ndlp x%06x\n",
4471 prli_fc4_req, ndlp->nlp_fc4_type,
4472 ndlp->nlp_DID);
dea3101e 4473
858c9f6c
JS
4474 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4475 "Issue ACC PRLI: did:x%x flg:x%x",
4476 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4477
dea3101e 4478 phba->fc_stat.elsXmitACC++;
858c9f6c 4479 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
dea3101e 4480
3772a991 4481 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
dea3101e
JB
4482 if (rc == IOCB_ERROR) {
4483 lpfc_els_free_iocb(phba, elsiocb);
c9f8735b 4484 return 1;
dea3101e 4485 }
c9f8735b 4486 return 0;
dea3101e
JB
4487}
4488
e59058c4 4489/**
3621a710 4490 * lpfc_els_rsp_rnid_acc - Issue rnid acc response iocb command
e59058c4
JS
4491 * @vport: pointer to a virtual N_Port data structure.
4492 * @format: rnid command format.
4493 * @oldiocb: pointer to the original lpfc command iocb data structure.
4494 * @ndlp: pointer to a node-list data structure.
4495 *
4496 * This routine issues a Request Node Identification Data (RNID) Accept
4497 * (ACC) response. It constructs the RNID ACC response command according to
4498 * the proper @format and then calls the lpfc_sli_issue_iocb() routine to
4499 * issue the response. Note that this command does not need to hold the ndlp
4500 * reference count for the callback. So, the ndlp reference count taken by
4501 * the lpfc_prep_els_iocb() routine is put back and the context1 field of
4502 * IOCB is set to NULL to indicate to the lpfc_els_free_iocb() routine that
4503 * there is no ndlp reference available.
4504 *
4505 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4506 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4507 * will be stored into the context1 field of the IOCB for the completion
4508 * callback function. However, for the RNID Accept Response ELS command,
4509 * this is undone later by this routine after the IOCB is allocated.
4510 *
4511 * Return code
4512 * 0 - Successfully issued acc rnid response
4513 * 1 - Failed to issue acc rnid response
4514 **/
dea3101e 4515static int
2e0fef85 4516lpfc_els_rsp_rnid_acc(struct lpfc_vport *vport, uint8_t format,
329f9bc7 4517 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
dea3101e 4518{
2e0fef85 4519 struct lpfc_hba *phba = vport->phba;
dea3101e 4520 RNID *rn;
2e0fef85 4521 IOCB_t *icmd, *oldcmd;
dea3101e 4522 struct lpfc_iocbq *elsiocb;
dea3101e
JB
4523 uint8_t *pcmd;
4524 uint16_t cmdsize;
4525 int rc;
4526
92d7f7b0
JS
4527 cmdsize = sizeof(uint32_t) + sizeof(uint32_t)
4528 + (2 * sizeof(struct lpfc_name));
dea3101e 4529 if (format)
92d7f7b0 4530 cmdsize += sizeof(RNID_TOP_DISC);
dea3101e 4531
2e0fef85
JS
4532 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
4533 ndlp->nlp_DID, ELS_CMD_ACC);
488d1469 4534 if (!elsiocb)
c9f8735b 4535 return 1;
dea3101e 4536
5b8bd0c9
JS
4537 icmd = &elsiocb->iocb;
4538 oldcmd = &oldiocb->iocb;
7851fe2c
JS
4539 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4540 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4541
dea3101e 4542 /* Xmit RNID ACC response tag <ulpIoTag> */
e8b62011
JS
4543 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4544 "0132 Xmit RNID ACC response tag x%x xri x%x\n",
4545 elsiocb->iotag, elsiocb->iocb.ulpContext);
dea3101e 4546 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
dea3101e 4547 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
92d7f7b0 4548 pcmd += sizeof(uint32_t);
dea3101e 4549
92d7f7b0 4550 memset(pcmd, 0, sizeof(RNID));
dea3101e
JB
4551 rn = (RNID *) (pcmd);
4552 rn->Format = format;
92d7f7b0
JS
4553 rn->CommonLen = (2 * sizeof(struct lpfc_name));
4554 memcpy(&rn->portName, &vport->fc_portname, sizeof(struct lpfc_name));
4555 memcpy(&rn->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
dea3101e
JB
4556 switch (format) {
4557 case 0:
4558 rn->SpecificLen = 0;
4559 break;
4560 case RNID_TOPOLOGY_DISC:
92d7f7b0 4561 rn->SpecificLen = sizeof(RNID_TOP_DISC);
dea3101e 4562 memcpy(&rn->un.topologyDisc.portName,
92d7f7b0 4563 &vport->fc_portname, sizeof(struct lpfc_name));
dea3101e
JB
4564 rn->un.topologyDisc.unitType = RNID_HBA;
4565 rn->un.topologyDisc.physPort = 0;
4566 rn->un.topologyDisc.attachedNodes = 0;
4567 break;
4568 default:
4569 rn->CommonLen = 0;
4570 rn->SpecificLen = 0;
4571 break;
4572 }
4573
858c9f6c
JS
4574 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4575 "Issue ACC RNID: did:x%x flg:x%x",
4576 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4577
dea3101e 4578 phba->fc_stat.elsXmitACC++;
858c9f6c 4579 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
dea3101e 4580
3772a991 4581 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
dea3101e
JB
4582 if (rc == IOCB_ERROR) {
4583 lpfc_els_free_iocb(phba, elsiocb);
c9f8735b 4584 return 1;
dea3101e 4585 }
c9f8735b 4586 return 0;
dea3101e
JB
4587}
4588
19ca7609
JS
4589/**
4590 * lpfc_els_clear_rrq - Clear the rq that this rrq describes.
4591 * @vport: pointer to a virtual N_Port data structure.
4592 * @iocb: pointer to the lpfc command iocb data structure.
4593 * @ndlp: pointer to a node-list data structure.
4594 *
4595 * Return
4596 **/
4597static void
4598lpfc_els_clear_rrq(struct lpfc_vport *vport,
a0f2d3ef 4599 struct lpfc_iocbq *iocb, struct lpfc_nodelist *ndlp)
19ca7609
JS
4600{
4601 struct lpfc_hba *phba = vport->phba;
4602 uint8_t *pcmd;
4603 struct RRQ *rrq;
4604 uint16_t rxid;
1151e3ec 4605 uint16_t xri;
19ca7609
JS
4606 struct lpfc_node_rrq *prrq;
4607
4608
4609 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) iocb->context2)->virt);
4610 pcmd += sizeof(uint32_t);
4611 rrq = (struct RRQ *)pcmd;
1151e3ec 4612 rrq->rrq_exchg = be32_to_cpu(rrq->rrq_exchg);
9589b062 4613 rxid = bf_get(rrq_rxid, rrq);
19ca7609
JS
4614
4615 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4616 "2883 Clear RRQ for SID:x%x OXID:x%x RXID:x%x"
4617 " x%x x%x\n",
1151e3ec 4618 be32_to_cpu(bf_get(rrq_did, rrq)),
9589b062 4619 bf_get(rrq_oxid, rrq),
19ca7609
JS
4620 rxid,
4621 iocb->iotag, iocb->iocb.ulpContext);
4622
4623 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4624 "Clear RRQ: did:x%x flg:x%x exchg:x%.08x",
4625 ndlp->nlp_DID, ndlp->nlp_flag, rrq->rrq_exchg);
1151e3ec 4626 if (vport->fc_myDID == be32_to_cpu(bf_get(rrq_did, rrq)))
9589b062 4627 xri = bf_get(rrq_oxid, rrq);
1151e3ec
JS
4628 else
4629 xri = rxid;
4630 prrq = lpfc_get_active_rrq(vport, xri, ndlp->nlp_DID);
19ca7609 4631 if (prrq)
1151e3ec 4632 lpfc_clr_rrq_active(phba, xri, prrq);
19ca7609
JS
4633 return;
4634}
4635
12265f68
JS
4636/**
4637 * lpfc_els_rsp_echo_acc - Issue echo acc response
4638 * @vport: pointer to a virtual N_Port data structure.
4639 * @data: pointer to echo data to return in the accept.
4640 * @oldiocb: pointer to the original lpfc command iocb data structure.
4641 * @ndlp: pointer to a node-list data structure.
4642 *
4643 * Return code
4644 * 0 - Successfully issued acc echo response
4645 * 1 - Failed to issue acc echo response
4646 **/
4647static int
4648lpfc_els_rsp_echo_acc(struct lpfc_vport *vport, uint8_t *data,
4649 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
4650{
4651 struct lpfc_hba *phba = vport->phba;
4652 struct lpfc_iocbq *elsiocb;
12265f68
JS
4653 uint8_t *pcmd;
4654 uint16_t cmdsize;
4655 int rc;
4656
12265f68
JS
4657 cmdsize = oldiocb->iocb.unsli3.rcvsli3.acc_len;
4658
bf08611b
JS
4659 /* The accumulated length can exceed the BPL_SIZE. For
4660 * now, use this as the limit
4661 */
4662 if (cmdsize > LPFC_BPL_SIZE)
4663 cmdsize = LPFC_BPL_SIZE;
12265f68
JS
4664 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
4665 ndlp->nlp_DID, ELS_CMD_ACC);
4666 if (!elsiocb)
4667 return 1;
4668
7851fe2c
JS
4669 elsiocb->iocb.ulpContext = oldiocb->iocb.ulpContext; /* Xri / rx_id */
4670 elsiocb->iocb.unsli3.rcvsli3.ox_id = oldiocb->iocb.unsli3.rcvsli3.ox_id;
4671
12265f68
JS
4672 /* Xmit ECHO ACC response tag <ulpIoTag> */
4673 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4674 "2876 Xmit ECHO ACC response tag x%x xri x%x\n",
4675 elsiocb->iotag, elsiocb->iocb.ulpContext);
4676 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4677 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
4678 pcmd += sizeof(uint32_t);
4679 memcpy(pcmd, data, cmdsize - sizeof(uint32_t));
4680
4681 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4682 "Issue ACC ECHO: did:x%x flg:x%x",
4683 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4684
4685 phba->fc_stat.elsXmitACC++;
4686 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
12265f68
JS
4687
4688 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4689 if (rc == IOCB_ERROR) {
4690 lpfc_els_free_iocb(phba, elsiocb);
4691 return 1;
4692 }
4693 return 0;
4694}
4695
e59058c4 4696/**
3621a710 4697 * lpfc_els_disc_adisc - Issue remaining adisc iocbs to npr nodes of a vport
e59058c4
JS
4698 * @vport: pointer to a host virtual N_Port data structure.
4699 *
4700 * This routine issues Address Discover (ADISC) ELS commands to those
4701 * N_Ports which are in node port recovery state and ADISC has not been issued
4702 * for the @vport. Each time an ELS ADISC IOCB is issued by invoking the
4703 * lpfc_issue_els_adisc() routine, the per @vport number of discover count
4704 * (num_disc_nodes) shall be incremented. If the num_disc_nodes reaches a
4705 * pre-configured threshold (cfg_discovery_threads), the @vport fc_flag will
4706 * be marked with FC_NLP_MORE bit and the process of issuing remaining ADISC
4707 * IOCBs quit for later pick up. On the other hand, after walking through
4708 * all the ndlps with the @vport and there is none ADISC IOCB issued, the
4709 * @vport fc_flag shall be cleared with FC_NLP_MORE bit indicating there is
4710 * no more ADISC need to be sent.
4711 *
4712 * Return code
4713 * The number of N_Ports with adisc issued.
4714 **/
dea3101e 4715int
2e0fef85 4716lpfc_els_disc_adisc(struct lpfc_vport *vport)
dea3101e 4717{
2e0fef85 4718 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e 4719 struct lpfc_nodelist *ndlp, *next_ndlp;
2e0fef85 4720 int sentadisc = 0;
dea3101e 4721
685f0bf7 4722 /* go thru NPR nodes and issue any remaining ELS ADISCs */
2e0fef85 4723 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
e47c9093
JS
4724 if (!NLP_CHK_NODE_ACT(ndlp))
4725 continue;
685f0bf7
JS
4726 if (ndlp->nlp_state == NLP_STE_NPR_NODE &&
4727 (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 &&
4728 (ndlp->nlp_flag & NLP_NPR_ADISC) != 0) {
2e0fef85 4729 spin_lock_irq(shost->host_lock);
685f0bf7 4730 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2e0fef85 4731 spin_unlock_irq(shost->host_lock);
685f0bf7 4732 ndlp->nlp_prev_state = ndlp->nlp_state;
2e0fef85
JS
4733 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
4734 lpfc_issue_els_adisc(vport, ndlp, 0);
685f0bf7 4735 sentadisc++;
2e0fef85
JS
4736 vport->num_disc_nodes++;
4737 if (vport->num_disc_nodes >=
3de2a653 4738 vport->cfg_discovery_threads) {
2e0fef85
JS
4739 spin_lock_irq(shost->host_lock);
4740 vport->fc_flag |= FC_NLP_MORE;
4741 spin_unlock_irq(shost->host_lock);
685f0bf7 4742 break;
dea3101e
JB
4743 }
4744 }
4745 }
4746 if (sentadisc == 0) {
2e0fef85
JS
4747 spin_lock_irq(shost->host_lock);
4748 vport->fc_flag &= ~FC_NLP_MORE;
4749 spin_unlock_irq(shost->host_lock);
dea3101e 4750 }
2fe165b6 4751 return sentadisc;
dea3101e
JB
4752}
4753
e59058c4 4754/**
3621a710 4755 * lpfc_els_disc_plogi - Issue plogi for all npr nodes of a vport before adisc
e59058c4
JS
4756 * @vport: pointer to a host virtual N_Port data structure.
4757 *
4758 * This routine issues Port Login (PLOGI) ELS commands to all the N_Ports
4759 * which are in node port recovery state, with a @vport. Each time an ELS
4760 * ADISC PLOGI IOCB is issued by invoking the lpfc_issue_els_plogi() routine,
4761 * the per @vport number of discover count (num_disc_nodes) shall be
4762 * incremented. If the num_disc_nodes reaches a pre-configured threshold
4763 * (cfg_discovery_threads), the @vport fc_flag will be marked with FC_NLP_MORE
4764 * bit set and quit the process of issuing remaining ADISC PLOGIN IOCBs for
4765 * later pick up. On the other hand, after walking through all the ndlps with
4766 * the @vport and there is none ADISC PLOGI IOCB issued, the @vport fc_flag
4767 * shall be cleared with the FC_NLP_MORE bit indicating there is no more ADISC
4768 * PLOGI need to be sent.
4769 *
4770 * Return code
4771 * The number of N_Ports with plogi issued.
4772 **/
dea3101e 4773int
2e0fef85 4774lpfc_els_disc_plogi(struct lpfc_vport *vport)
dea3101e 4775{
2e0fef85 4776 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e 4777 struct lpfc_nodelist *ndlp, *next_ndlp;
2e0fef85 4778 int sentplogi = 0;
dea3101e 4779
2e0fef85
JS
4780 /* go thru NPR nodes and issue any remaining ELS PLOGIs */
4781 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
e47c9093
JS
4782 if (!NLP_CHK_NODE_ACT(ndlp))
4783 continue;
685f0bf7 4784 if (ndlp->nlp_state == NLP_STE_NPR_NODE &&
8b017a30
JS
4785 (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 &&
4786 (ndlp->nlp_flag & NLP_DELAY_TMO) == 0 &&
4787 (ndlp->nlp_flag & NLP_NPR_ADISC) == 0) {
685f0bf7 4788 ndlp->nlp_prev_state = ndlp->nlp_state;
2e0fef85
JS
4789 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
4790 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
685f0bf7 4791 sentplogi++;
2e0fef85
JS
4792 vport->num_disc_nodes++;
4793 if (vport->num_disc_nodes >=
8b017a30 4794 vport->cfg_discovery_threads) {
2e0fef85
JS
4795 spin_lock_irq(shost->host_lock);
4796 vport->fc_flag |= FC_NLP_MORE;
4797 spin_unlock_irq(shost->host_lock);
685f0bf7 4798 break;
dea3101e
JB
4799 }
4800 }
4801 }
87af33fe
JS
4802 if (sentplogi) {
4803 lpfc_set_disctmo(vport);
4804 }
4805 else {
2e0fef85
JS
4806 spin_lock_irq(shost->host_lock);
4807 vport->fc_flag &= ~FC_NLP_MORE;
4808 spin_unlock_irq(shost->host_lock);
dea3101e 4809 }
2fe165b6 4810 return sentplogi;
dea3101e
JB
4811}
4812
bd4b3e5c 4813static uint32_t
86478875
JS
4814lpfc_rdp_res_link_service(struct fc_rdp_link_service_desc *desc,
4815 uint32_t word0)
4816{
4817
4818 desc->tag = cpu_to_be32(RDP_LINK_SERVICE_DESC_TAG);
4819 desc->payload.els_req = word0;
4820 desc->length = cpu_to_be32(sizeof(desc->payload));
6c92d1d0
JS
4821
4822 return sizeof(struct fc_rdp_link_service_desc);
86478875
JS
4823}
4824
bd4b3e5c 4825static uint32_t
86478875
JS
4826lpfc_rdp_res_sfp_desc(struct fc_rdp_sfp_desc *desc,
4827 uint8_t *page_a0, uint8_t *page_a2)
4828{
4829 uint16_t wavelength;
4830 uint16_t temperature;
4831 uint16_t rx_power;
4832 uint16_t tx_bias;
4833 uint16_t tx_power;
4834 uint16_t vcc;
4835 uint16_t flag = 0;
4836 struct sff_trasnceiver_codes_byte4 *trasn_code_byte4;
4837 struct sff_trasnceiver_codes_byte5 *trasn_code_byte5;
4838
4839 desc->tag = cpu_to_be32(RDP_SFP_DESC_TAG);
4840
4841 trasn_code_byte4 = (struct sff_trasnceiver_codes_byte4 *)
4842 &page_a0[SSF_TRANSCEIVER_CODE_B4];
4843 trasn_code_byte5 = (struct sff_trasnceiver_codes_byte5 *)
4844 &page_a0[SSF_TRANSCEIVER_CODE_B5];
4845
4846 if ((trasn_code_byte4->fc_sw_laser) ||
4847 (trasn_code_byte5->fc_sw_laser_sl) ||
4848 (trasn_code_byte5->fc_sw_laser_sn)) { /* check if its short WL */
4849 flag |= (SFP_FLAG_PT_SWLASER << SFP_FLAG_PT_SHIFT);
4850 } else if (trasn_code_byte4->fc_lw_laser) {
4851 wavelength = (page_a0[SSF_WAVELENGTH_B1] << 8) |
4852 page_a0[SSF_WAVELENGTH_B0];
4853 if (wavelength == SFP_WAVELENGTH_LC1310)
4854 flag |= SFP_FLAG_PT_LWLASER_LC1310 << SFP_FLAG_PT_SHIFT;
4855 if (wavelength == SFP_WAVELENGTH_LL1550)
4856 flag |= SFP_FLAG_PT_LWLASER_LL1550 << SFP_FLAG_PT_SHIFT;
4857 }
4858 /* check if its SFP+ */
4859 flag |= ((page_a0[SSF_IDENTIFIER] == SFF_PG0_IDENT_SFP) ?
4860 SFP_FLAG_CT_SFP_PLUS : SFP_FLAG_CT_UNKNOWN)
4861 << SFP_FLAG_CT_SHIFT;
4862
4863 /* check if its OPTICAL */
4864 flag |= ((page_a0[SSF_CONNECTOR] == SFF_PG0_CONNECTOR_LC) ?
4865 SFP_FLAG_IS_OPTICAL_PORT : 0)
4866 << SFP_FLAG_IS_OPTICAL_SHIFT;
4867
4868 temperature = (page_a2[SFF_TEMPERATURE_B1] << 8 |
4869 page_a2[SFF_TEMPERATURE_B0]);
4870 vcc = (page_a2[SFF_VCC_B1] << 8 |
4871 page_a2[SFF_VCC_B0]);
4872 tx_power = (page_a2[SFF_TXPOWER_B1] << 8 |
4873 page_a2[SFF_TXPOWER_B0]);
4874 tx_bias = (page_a2[SFF_TX_BIAS_CURRENT_B1] << 8 |
4875 page_a2[SFF_TX_BIAS_CURRENT_B0]);
4876 rx_power = (page_a2[SFF_RXPOWER_B1] << 8 |
4877 page_a2[SFF_RXPOWER_B0]);
4878 desc->sfp_info.temperature = cpu_to_be16(temperature);
4879 desc->sfp_info.rx_power = cpu_to_be16(rx_power);
4880 desc->sfp_info.tx_bias = cpu_to_be16(tx_bias);
4881 desc->sfp_info.tx_power = cpu_to_be16(tx_power);
4882 desc->sfp_info.vcc = cpu_to_be16(vcc);
4883
4884 desc->sfp_info.flags = cpu_to_be16(flag);
4885 desc->length = cpu_to_be32(sizeof(desc->sfp_info));
6c92d1d0
JS
4886
4887 return sizeof(struct fc_rdp_sfp_desc);
86478875
JS
4888}
4889
bd4b3e5c 4890static uint32_t
86478875
JS
4891lpfc_rdp_res_link_error(struct fc_rdp_link_error_status_desc *desc,
4892 READ_LNK_VAR *stat)
4893{
4894 uint32_t type;
4895
4896 desc->tag = cpu_to_be32(RDP_LINK_ERROR_STATUS_DESC_TAG);
4897
4898 type = VN_PT_PHY_PF_PORT << VN_PT_PHY_SHIFT;
4899
4900 desc->info.port_type = cpu_to_be32(type);
4901
4902 desc->info.link_status.link_failure_cnt =
4903 cpu_to_be32(stat->linkFailureCnt);
4904 desc->info.link_status.loss_of_synch_cnt =
4905 cpu_to_be32(stat->lossSyncCnt);
4906 desc->info.link_status.loss_of_signal_cnt =
4907 cpu_to_be32(stat->lossSignalCnt);
4908 desc->info.link_status.primitive_seq_proto_err =
4909 cpu_to_be32(stat->primSeqErrCnt);
4910 desc->info.link_status.invalid_trans_word =
4911 cpu_to_be32(stat->invalidXmitWord);
4912 desc->info.link_status.invalid_crc_cnt = cpu_to_be32(stat->crcCnt);
4913
4914 desc->length = cpu_to_be32(sizeof(desc->info));
6c92d1d0
JS
4915
4916 return sizeof(struct fc_rdp_link_error_status_desc);
86478875
JS
4917}
4918
bd4b3e5c 4919static uint32_t
56204984
JS
4920lpfc_rdp_res_bbc_desc(struct fc_rdp_bbc_desc *desc, READ_LNK_VAR *stat,
4921 struct lpfc_vport *vport)
4922{
3aaaa314
JS
4923 uint32_t bbCredit;
4924
56204984
JS
4925 desc->tag = cpu_to_be32(RDP_BBC_DESC_TAG);
4926
3aaaa314
JS
4927 bbCredit = vport->fc_sparam.cmn.bbCreditLsb |
4928 (vport->fc_sparam.cmn.bbCreditMsb << 8);
4929 desc->bbc_info.port_bbc = cpu_to_be32(bbCredit);
4930 if (vport->phba->fc_topology != LPFC_TOPOLOGY_LOOP) {
4931 bbCredit = vport->phba->fc_fabparam.cmn.bbCreditLsb |
4932 (vport->phba->fc_fabparam.cmn.bbCreditMsb << 8);
4933 desc->bbc_info.attached_port_bbc = cpu_to_be32(bbCredit);
4934 } else {
56204984 4935 desc->bbc_info.attached_port_bbc = 0;
3aaaa314 4936 }
56204984
JS
4937
4938 desc->bbc_info.rtt = 0;
4939 desc->length = cpu_to_be32(sizeof(desc->bbc_info));
6c92d1d0
JS
4940
4941 return sizeof(struct fc_rdp_bbc_desc);
56204984
JS
4942}
4943
bd4b3e5c 4944static uint32_t
310429ef
JS
4945lpfc_rdp_res_oed_temp_desc(struct lpfc_hba *phba,
4946 struct fc_rdp_oed_sfp_desc *desc, uint8_t *page_a2)
56204984 4947{
310429ef 4948 uint32_t flags = 0;
56204984
JS
4949
4950 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
4951
3aaaa314
JS
4952 desc->oed_info.hi_alarm = page_a2[SSF_TEMP_HIGH_ALARM];
4953 desc->oed_info.lo_alarm = page_a2[SSF_TEMP_LOW_ALARM];
4954 desc->oed_info.hi_warning = page_a2[SSF_TEMP_HIGH_WARNING];
4955 desc->oed_info.lo_warning = page_a2[SSF_TEMP_LOW_WARNING];
310429ef
JS
4956
4957 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TEMPERATURE)
4958 flags |= RDP_OET_HIGH_ALARM;
4959 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TEMPERATURE)
4960 flags |= RDP_OET_LOW_ALARM;
4961 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TEMPERATURE)
4962 flags |= RDP_OET_HIGH_WARNING;
4963 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TEMPERATURE)
4964 flags |= RDP_OET_LOW_WARNING;
4965
56204984
JS
4966 flags |= ((0xf & RDP_OED_TEMPERATURE) << RDP_OED_TYPE_SHIFT);
4967 desc->oed_info.function_flags = cpu_to_be32(flags);
4968 desc->length = cpu_to_be32(sizeof(desc->oed_info));
6c92d1d0 4969 return sizeof(struct fc_rdp_oed_sfp_desc);
56204984
JS
4970}
4971
bd4b3e5c 4972static uint32_t
310429ef
JS
4973lpfc_rdp_res_oed_voltage_desc(struct lpfc_hba *phba,
4974 struct fc_rdp_oed_sfp_desc *desc,
56204984
JS
4975 uint8_t *page_a2)
4976{
310429ef 4977 uint32_t flags = 0;
56204984
JS
4978
4979 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
4980
3aaaa314
JS
4981 desc->oed_info.hi_alarm = page_a2[SSF_VOLTAGE_HIGH_ALARM];
4982 desc->oed_info.lo_alarm = page_a2[SSF_VOLTAGE_LOW_ALARM];
4983 desc->oed_info.hi_warning = page_a2[SSF_VOLTAGE_HIGH_WARNING];
4984 desc->oed_info.lo_warning = page_a2[SSF_VOLTAGE_LOW_WARNING];
310429ef
JS
4985
4986 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_VOLTAGE)
4987 flags |= RDP_OET_HIGH_ALARM;
4988 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_VOLTAGE)
4989 flags |= RDP_OET_LOW_ALARM;
4990 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_VOLTAGE)
4991 flags |= RDP_OET_HIGH_WARNING;
4992 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_VOLTAGE)
4993 flags |= RDP_OET_LOW_WARNING;
4994
56204984
JS
4995 flags |= ((0xf & RDP_OED_VOLTAGE) << RDP_OED_TYPE_SHIFT);
4996 desc->oed_info.function_flags = cpu_to_be32(flags);
4997 desc->length = cpu_to_be32(sizeof(desc->oed_info));
6c92d1d0 4998 return sizeof(struct fc_rdp_oed_sfp_desc);
56204984
JS
4999}
5000
bd4b3e5c 5001static uint32_t
310429ef
JS
5002lpfc_rdp_res_oed_txbias_desc(struct lpfc_hba *phba,
5003 struct fc_rdp_oed_sfp_desc *desc,
56204984
JS
5004 uint8_t *page_a2)
5005{
310429ef 5006 uint32_t flags = 0;
56204984
JS
5007
5008 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
5009
3aaaa314
JS
5010 desc->oed_info.hi_alarm = page_a2[SSF_BIAS_HIGH_ALARM];
5011 desc->oed_info.lo_alarm = page_a2[SSF_BIAS_LOW_ALARM];
5012 desc->oed_info.hi_warning = page_a2[SSF_BIAS_HIGH_WARNING];
5013 desc->oed_info.lo_warning = page_a2[SSF_BIAS_LOW_WARNING];
310429ef
JS
5014
5015 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TXBIAS)
5016 flags |= RDP_OET_HIGH_ALARM;
5017 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TXBIAS)
5018 flags |= RDP_OET_LOW_ALARM;
5019 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TXBIAS)
5020 flags |= RDP_OET_HIGH_WARNING;
5021 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TXBIAS)
5022 flags |= RDP_OET_LOW_WARNING;
5023
56204984
JS
5024 flags |= ((0xf & RDP_OED_TXBIAS) << RDP_OED_TYPE_SHIFT);
5025 desc->oed_info.function_flags = cpu_to_be32(flags);
5026 desc->length = cpu_to_be32(sizeof(desc->oed_info));
6c92d1d0 5027 return sizeof(struct fc_rdp_oed_sfp_desc);
56204984
JS
5028}
5029
bd4b3e5c 5030static uint32_t
310429ef
JS
5031lpfc_rdp_res_oed_txpower_desc(struct lpfc_hba *phba,
5032 struct fc_rdp_oed_sfp_desc *desc,
56204984
JS
5033 uint8_t *page_a2)
5034{
310429ef 5035 uint32_t flags = 0;
56204984
JS
5036
5037 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
5038
3aaaa314
JS
5039 desc->oed_info.hi_alarm = page_a2[SSF_TXPOWER_HIGH_ALARM];
5040 desc->oed_info.lo_alarm = page_a2[SSF_TXPOWER_LOW_ALARM];
5041 desc->oed_info.hi_warning = page_a2[SSF_TXPOWER_HIGH_WARNING];
5042 desc->oed_info.lo_warning = page_a2[SSF_TXPOWER_LOW_WARNING];
310429ef
JS
5043
5044 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TXPOWER)
5045 flags |= RDP_OET_HIGH_ALARM;
5046 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TXPOWER)
5047 flags |= RDP_OET_LOW_ALARM;
5048 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TXPOWER)
5049 flags |= RDP_OET_HIGH_WARNING;
5050 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TXPOWER)
5051 flags |= RDP_OET_LOW_WARNING;
5052
56204984
JS
5053 flags |= ((0xf & RDP_OED_TXPOWER) << RDP_OED_TYPE_SHIFT);
5054 desc->oed_info.function_flags = cpu_to_be32(flags);
5055 desc->length = cpu_to_be32(sizeof(desc->oed_info));
6c92d1d0 5056 return sizeof(struct fc_rdp_oed_sfp_desc);
56204984
JS
5057}
5058
5059
bd4b3e5c 5060static uint32_t
310429ef
JS
5061lpfc_rdp_res_oed_rxpower_desc(struct lpfc_hba *phba,
5062 struct fc_rdp_oed_sfp_desc *desc,
56204984
JS
5063 uint8_t *page_a2)
5064{
310429ef 5065 uint32_t flags = 0;
56204984
JS
5066
5067 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
5068
3aaaa314
JS
5069 desc->oed_info.hi_alarm = page_a2[SSF_RXPOWER_HIGH_ALARM];
5070 desc->oed_info.lo_alarm = page_a2[SSF_RXPOWER_LOW_ALARM];
5071 desc->oed_info.hi_warning = page_a2[SSF_RXPOWER_HIGH_WARNING];
5072 desc->oed_info.lo_warning = page_a2[SSF_RXPOWER_LOW_WARNING];
310429ef
JS
5073
5074 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_RXPOWER)
5075 flags |= RDP_OET_HIGH_ALARM;
5076 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_RXPOWER)
5077 flags |= RDP_OET_LOW_ALARM;
5078 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_RXPOWER)
5079 flags |= RDP_OET_HIGH_WARNING;
5080 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_RXPOWER)
5081 flags |= RDP_OET_LOW_WARNING;
5082
56204984
JS
5083 flags |= ((0xf & RDP_OED_RXPOWER) << RDP_OED_TYPE_SHIFT);
5084 desc->oed_info.function_flags = cpu_to_be32(flags);
5085 desc->length = cpu_to_be32(sizeof(desc->oed_info));
6c92d1d0 5086 return sizeof(struct fc_rdp_oed_sfp_desc);
56204984
JS
5087}
5088
bd4b3e5c 5089static uint32_t
56204984
JS
5090lpfc_rdp_res_opd_desc(struct fc_rdp_opd_sfp_desc *desc,
5091 uint8_t *page_a0, struct lpfc_vport *vport)
5092{
5093 desc->tag = cpu_to_be32(RDP_OPD_DESC_TAG);
5094 memcpy(desc->opd_info.vendor_name, &page_a0[SSF_VENDOR_NAME], 16);
5095 memcpy(desc->opd_info.model_number, &page_a0[SSF_VENDOR_PN], 16);
5096 memcpy(desc->opd_info.serial_number, &page_a0[SSF_VENDOR_SN], 16);
a0f2d3ef 5097 memcpy(desc->opd_info.revision, &page_a0[SSF_VENDOR_REV], 4);
56204984
JS
5098 memcpy(desc->opd_info.date, &page_a0[SSF_DATE_CODE], 8);
5099 desc->length = cpu_to_be32(sizeof(desc->opd_info));
6c92d1d0 5100 return sizeof(struct fc_rdp_opd_sfp_desc);
56204984
JS
5101}
5102
bd4b3e5c 5103static uint32_t
4258e98e
JS
5104lpfc_rdp_res_fec_desc(struct fc_fec_rdp_desc *desc, READ_LNK_VAR *stat)
5105{
5106 if (bf_get(lpfc_read_link_stat_gec2, stat) == 0)
5107 return 0;
5108 desc->tag = cpu_to_be32(RDP_FEC_DESC_TAG);
5109
5110 desc->info.CorrectedBlocks =
5111 cpu_to_be32(stat->fecCorrBlkCount);
5112 desc->info.UncorrectableBlocks =
5113 cpu_to_be32(stat->fecUncorrBlkCount);
5114
5115 desc->length = cpu_to_be32(sizeof(desc->info));
5116
5117 return sizeof(struct fc_fec_rdp_desc);
5118}
5119
bd4b3e5c 5120static uint32_t
86478875
JS
5121lpfc_rdp_res_speed(struct fc_rdp_port_speed_desc *desc, struct lpfc_hba *phba)
5122{
5123 uint16_t rdp_cap = 0;
5124 uint16_t rdp_speed;
5125
5126 desc->tag = cpu_to_be32(RDP_PORT_SPEED_DESC_TAG);
5127
81e75177
JS
5128 switch (phba->fc_linkspeed) {
5129 case LPFC_LINK_SPEED_1GHZ:
86478875
JS
5130 rdp_speed = RDP_PS_1GB;
5131 break;
81e75177 5132 case LPFC_LINK_SPEED_2GHZ:
86478875
JS
5133 rdp_speed = RDP_PS_2GB;
5134 break;
81e75177 5135 case LPFC_LINK_SPEED_4GHZ:
86478875
JS
5136 rdp_speed = RDP_PS_4GB;
5137 break;
81e75177 5138 case LPFC_LINK_SPEED_8GHZ:
86478875
JS
5139 rdp_speed = RDP_PS_8GB;
5140 break;
81e75177 5141 case LPFC_LINK_SPEED_10GHZ:
86478875
JS
5142 rdp_speed = RDP_PS_10GB;
5143 break;
81e75177 5144 case LPFC_LINK_SPEED_16GHZ:
86478875
JS
5145 rdp_speed = RDP_PS_16GB;
5146 break;
a085e87c
JS
5147 case LPFC_LINK_SPEED_32GHZ:
5148 rdp_speed = RDP_PS_32GB;
5149 break;
86478875
JS
5150 default:
5151 rdp_speed = RDP_PS_UNKNOWN;
5152 break;
5153 }
5154
5155 desc->info.port_speed.speed = cpu_to_be16(rdp_speed);
5156
d38dd52c
JS
5157 if (phba->lmt & LMT_32Gb)
5158 rdp_cap |= RDP_PS_32GB;
86478875
JS
5159 if (phba->lmt & LMT_16Gb)
5160 rdp_cap |= RDP_PS_16GB;
5161 if (phba->lmt & LMT_10Gb)
5162 rdp_cap |= RDP_PS_10GB;
5163 if (phba->lmt & LMT_8Gb)
5164 rdp_cap |= RDP_PS_8GB;
5165 if (phba->lmt & LMT_4Gb)
5166 rdp_cap |= RDP_PS_4GB;
5167 if (phba->lmt & LMT_2Gb)
5168 rdp_cap |= RDP_PS_2GB;
5169 if (phba->lmt & LMT_1Gb)
5170 rdp_cap |= RDP_PS_1GB;
5171
5172 if (rdp_cap == 0)
5173 rdp_cap = RDP_CAP_UNKNOWN;
56204984
JS
5174 if (phba->cfg_link_speed != LPFC_USER_LINK_SPEED_AUTO)
5175 rdp_cap |= RDP_CAP_USER_CONFIGURED;
86478875
JS
5176
5177 desc->info.port_speed.capabilities = cpu_to_be16(rdp_cap);
5178 desc->length = cpu_to_be32(sizeof(desc->info));
6c92d1d0 5179 return sizeof(struct fc_rdp_port_speed_desc);
86478875
JS
5180}
5181
bd4b3e5c 5182static uint32_t
86478875 5183lpfc_rdp_res_diag_port_names(struct fc_rdp_port_name_desc *desc,
cd46cded 5184 struct lpfc_vport *vport)
86478875
JS
5185{
5186
5187 desc->tag = cpu_to_be32(RDP_PORT_NAMES_DESC_TAG);
5188
cd46cded 5189 memcpy(desc->port_names.wwnn, &vport->fc_nodename,
86478875
JS
5190 sizeof(desc->port_names.wwnn));
5191
cd46cded 5192 memcpy(desc->port_names.wwpn, &vport->fc_portname,
86478875
JS
5193 sizeof(desc->port_names.wwpn));
5194
5195 desc->length = cpu_to_be32(sizeof(desc->port_names));
6c92d1d0 5196 return sizeof(struct fc_rdp_port_name_desc);
86478875
JS
5197}
5198
bd4b3e5c 5199static uint32_t
86478875
JS
5200lpfc_rdp_res_attach_port_names(struct fc_rdp_port_name_desc *desc,
5201 struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
5202{
5203
5204 desc->tag = cpu_to_be32(RDP_PORT_NAMES_DESC_TAG);
5205 if (vport->fc_flag & FC_FABRIC) {
5206 memcpy(desc->port_names.wwnn, &vport->fabric_nodename,
5207 sizeof(desc->port_names.wwnn));
5208
5209 memcpy(desc->port_names.wwpn, &vport->fabric_portname,
5210 sizeof(desc->port_names.wwpn));
5211 } else { /* Point to Point */
5212 memcpy(desc->port_names.wwnn, &ndlp->nlp_nodename,
5213 sizeof(desc->port_names.wwnn));
5214
5215 memcpy(desc->port_names.wwnn, &ndlp->nlp_portname,
5216 sizeof(desc->port_names.wwpn));
5217 }
5218
5219 desc->length = cpu_to_be32(sizeof(desc->port_names));
6c92d1d0 5220 return sizeof(struct fc_rdp_port_name_desc);
86478875
JS
5221}
5222
bd4b3e5c 5223static void
86478875
JS
5224lpfc_els_rdp_cmpl(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context,
5225 int status)
5226{
5227 struct lpfc_nodelist *ndlp = rdp_context->ndlp;
5228 struct lpfc_vport *vport = ndlp->vport;
5229 struct lpfc_iocbq *elsiocb;
eb8d68c9 5230 struct ulp_bde64 *bpl;
86478875
JS
5231 IOCB_t *icmd;
5232 uint8_t *pcmd;
5233 struct ls_rjt *stat;
5234 struct fc_rdp_res_frame *rdp_res;
6c92d1d0 5235 uint32_t cmdsize, len;
310429ef 5236 uint16_t *flag_ptr;
6c92d1d0 5237 int rc;
86478875
JS
5238
5239 if (status != SUCCESS)
5240 goto error;
eb8d68c9
JS
5241
5242 /* This will change once we know the true size of the RDP payload */
86478875
JS
5243 cmdsize = sizeof(struct fc_rdp_res_frame);
5244
5245 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize,
5246 lpfc_max_els_tries, rdp_context->ndlp,
5247 rdp_context->ndlp->nlp_DID, ELS_CMD_ACC);
5248 lpfc_nlp_put(ndlp);
5249 if (!elsiocb)
5250 goto free_rdp_context;
5251
5252 icmd = &elsiocb->iocb;
5253 icmd->ulpContext = rdp_context->rx_id;
5254 icmd->unsli3.rcvsli3.ox_id = rdp_context->ox_id;
5255
5256 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
5257 "2171 Xmit RDP response tag x%x xri x%x, "
5258 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x",
5259 elsiocb->iotag, elsiocb->iocb.ulpContext,
5260 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
5261 ndlp->nlp_rpi);
5262 rdp_res = (struct fc_rdp_res_frame *)
5263 (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
5264 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
5265 memset(pcmd, 0, sizeof(struct fc_rdp_res_frame));
5266 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
5267
310429ef
JS
5268 /* Update Alarm and Warning */
5269 flag_ptr = (uint16_t *)(rdp_context->page_a2 + SSF_ALARM_FLAGS);
5270 phba->sfp_alarm |= *flag_ptr;
5271 flag_ptr = (uint16_t *)(rdp_context->page_a2 + SSF_WARNING_FLAGS);
5272 phba->sfp_warning |= *flag_ptr;
5273
86478875 5274 /* For RDP payload */
6c92d1d0
JS
5275 len = 8;
5276 len += lpfc_rdp_res_link_service((struct fc_rdp_link_service_desc *)
5277 (len + pcmd), ELS_CMD_RDP);
86478875 5278
6c92d1d0 5279 len += lpfc_rdp_res_sfp_desc((struct fc_rdp_sfp_desc *)(len + pcmd),
86478875 5280 rdp_context->page_a0, rdp_context->page_a2);
6c92d1d0
JS
5281 len += lpfc_rdp_res_speed((struct fc_rdp_port_speed_desc *)(len + pcmd),
5282 phba);
5283 len += lpfc_rdp_res_link_error((struct fc_rdp_link_error_status_desc *)
5284 (len + pcmd), &rdp_context->link_stat);
5285 len += lpfc_rdp_res_diag_port_names((struct fc_rdp_port_name_desc *)
cd46cded 5286 (len + pcmd), vport);
6c92d1d0
JS
5287 len += lpfc_rdp_res_attach_port_names((struct fc_rdp_port_name_desc *)
5288 (len + pcmd), vport, ndlp);
5289 len += lpfc_rdp_res_fec_desc((struct fc_fec_rdp_desc *)(len + pcmd),
4258e98e 5290 &rdp_context->link_stat);
6c92d1d0
JS
5291 /* Check if nport is logged, BZ190632 */
5292 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED))
5293 goto lpfc_skip_descriptor;
5294
5295 len += lpfc_rdp_res_bbc_desc((struct fc_rdp_bbc_desc *)(len + pcmd),
5296 &rdp_context->link_stat, vport);
5297 len += lpfc_rdp_res_oed_temp_desc(phba,
5298 (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
5299 rdp_context->page_a2);
5300 len += lpfc_rdp_res_oed_voltage_desc(phba,
5301 (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
5302 rdp_context->page_a2);
5303 len += lpfc_rdp_res_oed_txbias_desc(phba,
5304 (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
5305 rdp_context->page_a2);
5306 len += lpfc_rdp_res_oed_txpower_desc(phba,
5307 (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
5308 rdp_context->page_a2);
5309 len += lpfc_rdp_res_oed_rxpower_desc(phba,
5310 (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
5311 rdp_context->page_a2);
5312 len += lpfc_rdp_res_opd_desc((struct fc_rdp_opd_sfp_desc *)(len + pcmd),
5313 rdp_context->page_a0, vport);
5314
5315lpfc_skip_descriptor:
5316 rdp_res->length = cpu_to_be32(len - 8);
86478875
JS
5317 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
5318
eb8d68c9
JS
5319 /* Now that we know the true size of the payload, update the BPL */
5320 bpl = (struct ulp_bde64 *)
5321 (((struct lpfc_dmabuf *)(elsiocb->context3))->virt);
6c92d1d0 5322 bpl->tus.f.bdeSize = len;
eb8d68c9
JS
5323 bpl->tus.f.bdeFlags = 0;
5324 bpl->tus.w = le32_to_cpu(bpl->tus.w);
5325
86478875
JS
5326 phba->fc_stat.elsXmitACC++;
5327 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
5328 if (rc == IOCB_ERROR)
5329 lpfc_els_free_iocb(phba, elsiocb);
5330
5331 kfree(rdp_context);
5332
5333 return;
5334error:
5335 cmdsize = 2 * sizeof(uint32_t);
5336 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, lpfc_max_els_tries,
5337 ndlp, ndlp->nlp_DID, ELS_CMD_LS_RJT);
5338 lpfc_nlp_put(ndlp);
5339 if (!elsiocb)
5340 goto free_rdp_context;
5341
5342 icmd = &elsiocb->iocb;
5343 icmd->ulpContext = rdp_context->rx_id;
5344 icmd->unsli3.rcvsli3.ox_id = rdp_context->ox_id;
5345 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
5346
5347 *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT;
5348 stat = (struct ls_rjt *)(pcmd + sizeof(uint32_t));
5349 stat->un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
5350
5351 phba->fc_stat.elsXmitLSRJT++;
5352 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
5353 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
5354
5355 if (rc == IOCB_ERROR)
5356 lpfc_els_free_iocb(phba, elsiocb);
5357free_rdp_context:
5358 kfree(rdp_context);
5359}
5360
bd4b3e5c 5361static int
86478875
JS
5362lpfc_get_rdp_info(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context)
5363{
5364 LPFC_MBOXQ_t *mbox = NULL;
5365 int rc;
5366
5367 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5368 if (!mbox) {
5369 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_ELS,
5370 "7105 failed to allocate mailbox memory");
5371 return 1;
5372 }
5373
5374 if (lpfc_sli4_dump_page_a0(phba, mbox))
5375 goto prep_mbox_fail;
5376 mbox->vport = rdp_context->ndlp->vport;
5377 mbox->mbox_cmpl = lpfc_mbx_cmpl_rdp_page_a0;
5378 mbox->context2 = (struct lpfc_rdp_context *) rdp_context;
5379 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
5380 if (rc == MBX_NOT_FINISHED)
5381 goto issue_mbox_fail;
5382
5383 return 0;
5384
5385prep_mbox_fail:
5386issue_mbox_fail:
5387 mempool_free(mbox, phba->mbox_mem_pool);
5388 return 1;
5389}
5390
5391/*
5392 * lpfc_els_rcv_rdp - Process an unsolicited RDP ELS.
5393 * @vport: pointer to a host virtual N_Port data structure.
5394 * @cmdiocb: pointer to lpfc command iocb data structure.
5395 * @ndlp: pointer to a node-list data structure.
5396 *
5397 * This routine processes an unsolicited RDP(Read Diagnostic Parameters)
5398 * IOCB. First, the payload of the unsolicited RDP is checked.
5399 * Then it will (1) send MBX_DUMP_MEMORY, Embedded DMP_LMSD sub command TYPE-3
5400 * for Page A0, (2) send MBX_DUMP_MEMORY, DMP_LMSD for Page A2,
5401 * (3) send MBX_READ_LNK_STAT to get link stat, (4) Call lpfc_els_rdp_cmpl
5402 * gather all data and send RDP response.
5403 *
5404 * Return code
5405 * 0 - Sent the acc response
5406 * 1 - Sent the reject response.
5407 */
5408static int
5409lpfc_els_rcv_rdp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
5410 struct lpfc_nodelist *ndlp)
5411{
5412 struct lpfc_hba *phba = vport->phba;
5413 struct lpfc_dmabuf *pcmd;
5414 uint8_t rjt_err, rjt_expl = LSEXP_NOTHING_MORE;
5415 struct fc_rdp_req_frame *rdp_req;
5416 struct lpfc_rdp_context *rdp_context;
5417 IOCB_t *cmd = NULL;
5418 struct ls_rjt stat;
5419
5420 if (phba->sli_rev < LPFC_SLI_REV4 ||
a0f2d3ef
JS
5421 bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
5422 LPFC_SLI_INTF_IF_TYPE_2) {
86478875
JS
5423 rjt_err = LSRJT_UNABLE_TPC;
5424 rjt_expl = LSEXP_REQ_UNSUPPORTED;
5425 goto error;
5426 }
5427
5428 if (phba->sli_rev < LPFC_SLI_REV4 || (phba->hba_flag & HBA_FCOE_MODE)) {
5429 rjt_err = LSRJT_UNABLE_TPC;
5430 rjt_expl = LSEXP_REQ_UNSUPPORTED;
5431 goto error;
5432 }
5433
5434 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
5435 rdp_req = (struct fc_rdp_req_frame *) pcmd->virt;
5436
5437
5438 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
5439 "2422 ELS RDP Request "
5440 "dec len %d tag x%x port_id %d len %d\n",
5441 be32_to_cpu(rdp_req->rdp_des_length),
5442 be32_to_cpu(rdp_req->nport_id_desc.tag),
5443 be32_to_cpu(rdp_req->nport_id_desc.nport_id),
5444 be32_to_cpu(rdp_req->nport_id_desc.length));
5445
7d933313
JS
5446 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED) &&
5447 !phba->cfg_enable_SmartSAN) {
5448 rjt_err = LSRJT_UNABLE_TPC;
5449 rjt_expl = LSEXP_PORT_LOGIN_REQ;
5450 goto error;
5451 }
86478875
JS
5452 if (sizeof(struct fc_rdp_nport_desc) !=
5453 be32_to_cpu(rdp_req->rdp_des_length))
5454 goto rjt_logerr;
5455 if (RDP_N_PORT_DESC_TAG != be32_to_cpu(rdp_req->nport_id_desc.tag))
5456 goto rjt_logerr;
5457 if (RDP_NPORT_ID_SIZE !=
5458 be32_to_cpu(rdp_req->nport_id_desc.length))
5459 goto rjt_logerr;
699acd62 5460 rdp_context = kzalloc(sizeof(struct lpfc_rdp_context), GFP_KERNEL);
86478875
JS
5461 if (!rdp_context) {
5462 rjt_err = LSRJT_UNABLE_TPC;
5463 goto error;
5464 }
5465
86478875
JS
5466 cmd = &cmdiocb->iocb;
5467 rdp_context->ndlp = lpfc_nlp_get(ndlp);
5468 rdp_context->ox_id = cmd->unsli3.rcvsli3.ox_id;
5469 rdp_context->rx_id = cmd->ulpContext;
5470 rdp_context->cmpl = lpfc_els_rdp_cmpl;
5471 if (lpfc_get_rdp_info(phba, rdp_context)) {
5472 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_ELS,
5473 "2423 Unable to send mailbox");
5474 kfree(rdp_context);
5475 rjt_err = LSRJT_UNABLE_TPC;
5476 lpfc_nlp_put(ndlp);
5477 goto error;
5478 }
5479
5480 return 0;
5481
5482rjt_logerr:
5483 rjt_err = LSRJT_LOGICAL_ERR;
5484
5485error:
5486 memset(&stat, 0, sizeof(stat));
5487 stat.un.b.lsRjtRsnCode = rjt_err;
5488 stat.un.b.lsRjtRsnCodeExp = rjt_expl;
5489 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
5490 return 1;
5491}
5492
5493
8b017a30
JS
5494static void
5495lpfc_els_lcb_rsp(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
5496{
5497 MAILBOX_t *mb;
5498 IOCB_t *icmd;
5499 uint8_t *pcmd;
5500 struct lpfc_iocbq *elsiocb;
5501 struct lpfc_nodelist *ndlp;
5502 struct ls_rjt *stat;
481ad967 5503 union lpfc_sli4_cfg_shdr *shdr;
8b017a30
JS
5504 struct lpfc_lcb_context *lcb_context;
5505 struct fc_lcb_res_frame *lcb_res;
481ad967 5506 uint32_t cmdsize, shdr_status, shdr_add_status;
8b017a30
JS
5507 int rc;
5508
5509 mb = &pmb->u.mb;
8b017a30
JS
5510 lcb_context = (struct lpfc_lcb_context *)pmb->context1;
5511 ndlp = lcb_context->ndlp;
5512 pmb->context1 = NULL;
5513 pmb->context2 = NULL;
5514
481ad967
JS
5515 shdr = (union lpfc_sli4_cfg_shdr *)
5516 &pmb->u.mqe.un.beacon_config.header.cfg_shdr;
5517 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5518 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
5519
5520 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX,
5521 "0194 SET_BEACON_CONFIG mailbox "
5522 "completed with status x%x add_status x%x,"
5523 " mbx status x%x\n",
5524 shdr_status, shdr_add_status, mb->mbxStatus);
5525
5526 if (mb->mbxStatus && !(shdr_status &&
5527 shdr_add_status == ADD_STATUS_OPERATION_ALREADY_ACTIVE)) {
8b017a30
JS
5528 mempool_free(pmb, phba->mbox_mem_pool);
5529 goto error;
5530 }
5531
5532 mempool_free(pmb, phba->mbox_mem_pool);
8b017a30
JS
5533 cmdsize = sizeof(struct fc_lcb_res_frame);
5534 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
5535 lpfc_max_els_tries, ndlp,
5536 ndlp->nlp_DID, ELS_CMD_ACC);
5537
5538 /* Decrement the ndlp reference count from previous mbox command */
5539 lpfc_nlp_put(ndlp);
5540
5541 if (!elsiocb)
5542 goto free_lcb_context;
5543
5544 lcb_res = (struct fc_lcb_res_frame *)
5545 (((struct lpfc_dmabuf *)elsiocb->context2)->virt);
5546
5547 icmd = &elsiocb->iocb;
5548 icmd->ulpContext = lcb_context->rx_id;
5549 icmd->unsli3.rcvsli3.ox_id = lcb_context->ox_id;
5550
5551 pcmd = (uint8_t *)(((struct lpfc_dmabuf *)elsiocb->context2)->virt);
5552 *((uint32_t *)(pcmd)) = ELS_CMD_ACC;
5553 lcb_res->lcb_sub_command = lcb_context->sub_command;
5554 lcb_res->lcb_type = lcb_context->type;
5555 lcb_res->lcb_frequency = lcb_context->frequency;
5556 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
5557 phba->fc_stat.elsXmitACC++;
5558 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
5559 if (rc == IOCB_ERROR)
5560 lpfc_els_free_iocb(phba, elsiocb);
5561
5562 kfree(lcb_context);
5563 return;
5564
5565error:
5566 cmdsize = sizeof(struct fc_lcb_res_frame);
5567 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
5568 lpfc_max_els_tries, ndlp,
5569 ndlp->nlp_DID, ELS_CMD_LS_RJT);
5570 lpfc_nlp_put(ndlp);
5571 if (!elsiocb)
5572 goto free_lcb_context;
5573
5574 icmd = &elsiocb->iocb;
5575 icmd->ulpContext = lcb_context->rx_id;
5576 icmd->unsli3.rcvsli3.ox_id = lcb_context->ox_id;
5577 pcmd = (uint8_t *)(((struct lpfc_dmabuf *)elsiocb->context2)->virt);
5578
5579 *((uint32_t *)(pcmd)) = ELS_CMD_LS_RJT;
5580 stat = (struct ls_rjt *)(pcmd + sizeof(uint32_t));
5581 stat->un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
5582
5583 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
5584 phba->fc_stat.elsXmitLSRJT++;
5585 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
5586 if (rc == IOCB_ERROR)
5587 lpfc_els_free_iocb(phba, elsiocb);
5588free_lcb_context:
5589 kfree(lcb_context);
5590}
5591
5592static int
5593lpfc_sli4_set_beacon(struct lpfc_vport *vport,
5594 struct lpfc_lcb_context *lcb_context,
5595 uint32_t beacon_state)
5596{
5597 struct lpfc_hba *phba = vport->phba;
5598 LPFC_MBOXQ_t *mbox = NULL;
5599 uint32_t len;
5600 int rc;
5601
5602 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5603 if (!mbox)
5604 return 1;
5605
5606 len = sizeof(struct lpfc_mbx_set_beacon_config) -
5607 sizeof(struct lpfc_sli4_cfg_mhdr);
5608 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5609 LPFC_MBOX_OPCODE_SET_BEACON_CONFIG, len,
5610 LPFC_SLI4_MBX_EMBED);
5611 mbox->context1 = (void *)lcb_context;
5612 mbox->vport = phba->pport;
5613 mbox->mbox_cmpl = lpfc_els_lcb_rsp;
5614 bf_set(lpfc_mbx_set_beacon_port_num, &mbox->u.mqe.un.beacon_config,
5615 phba->sli4_hba.physical_port);
5616 bf_set(lpfc_mbx_set_beacon_state, &mbox->u.mqe.un.beacon_config,
5617 beacon_state);
5618 bf_set(lpfc_mbx_set_beacon_port_type, &mbox->u.mqe.un.beacon_config, 1);
5619 bf_set(lpfc_mbx_set_beacon_duration, &mbox->u.mqe.un.beacon_config, 0);
5620 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
5621 if (rc == MBX_NOT_FINISHED) {
5622 mempool_free(mbox, phba->mbox_mem_pool);
5623 return 1;
5624 }
5625
5626 return 0;
5627}
5628
5629
5630/**
5631 * lpfc_els_rcv_lcb - Process an unsolicited LCB
5632 * @vport: pointer to a host virtual N_Port data structure.
5633 * @cmdiocb: pointer to lpfc command iocb data structure.
5634 * @ndlp: pointer to a node-list data structure.
5635 *
5636 * This routine processes an unsolicited LCB(LINK CABLE BEACON) IOCB.
5637 * First, the payload of the unsolicited LCB is checked.
5638 * Then based on Subcommand beacon will either turn on or off.
5639 *
5640 * Return code
5641 * 0 - Sent the acc response
5642 * 1 - Sent the reject response.
5643 **/
5644static int
5645lpfc_els_rcv_lcb(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
5646 struct lpfc_nodelist *ndlp)
5647{
5648 struct lpfc_hba *phba = vport->phba;
5649 struct lpfc_dmabuf *pcmd;
8b017a30
JS
5650 uint8_t *lp;
5651 struct fc_lcb_request_frame *beacon;
5652 struct lpfc_lcb_context *lcb_context;
5653 uint8_t state, rjt_err;
5654 struct ls_rjt stat;
5655
8b017a30
JS
5656 pcmd = (struct lpfc_dmabuf *)cmdiocb->context2;
5657 lp = (uint8_t *)pcmd->virt;
5658 beacon = (struct fc_lcb_request_frame *)pcmd->virt;
5659
5660 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
5661 "0192 ELS LCB Data x%x x%x x%x x%x sub x%x "
5662 "type x%x frequency %x duration x%x\n",
5663 lp[0], lp[1], lp[2],
5664 beacon->lcb_command,
5665 beacon->lcb_sub_command,
5666 beacon->lcb_type,
5667 beacon->lcb_frequency,
5668 be16_to_cpu(beacon->lcb_duration));
5669
5670 if (phba->sli_rev < LPFC_SLI_REV4 ||
5671 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
5672 LPFC_SLI_INTF_IF_TYPE_2)) {
5673 rjt_err = LSRJT_CMD_UNSUPPORTED;
5674 goto rjt;
5675 }
8b017a30
JS
5676
5677 if (phba->hba_flag & HBA_FCOE_MODE) {
5678 rjt_err = LSRJT_CMD_UNSUPPORTED;
5679 goto rjt;
5680 }
5681 if (beacon->lcb_frequency == 0) {
5682 rjt_err = LSRJT_CMD_UNSUPPORTED;
5683 goto rjt;
5684 }
5685 if ((beacon->lcb_type != LPFC_LCB_GREEN) &&
5686 (beacon->lcb_type != LPFC_LCB_AMBER)) {
5687 rjt_err = LSRJT_CMD_UNSUPPORTED;
5688 goto rjt;
5689 }
5690 if ((beacon->lcb_sub_command != LPFC_LCB_ON) &&
5691 (beacon->lcb_sub_command != LPFC_LCB_OFF)) {
5692 rjt_err = LSRJT_CMD_UNSUPPORTED;
5693 goto rjt;
5694 }
5695 if ((beacon->lcb_sub_command == LPFC_LCB_ON) &&
5696 (beacon->lcb_type != LPFC_LCB_GREEN) &&
5697 (beacon->lcb_type != LPFC_LCB_AMBER)) {
5698 rjt_err = LSRJT_CMD_UNSUPPORTED;
5699 goto rjt;
5700 }
5701 if (be16_to_cpu(beacon->lcb_duration) != 0) {
5702 rjt_err = LSRJT_CMD_UNSUPPORTED;
5703 goto rjt;
5704 }
5705
e7950423
SM
5706 lcb_context = kmalloc(sizeof(*lcb_context), GFP_KERNEL);
5707 if (!lcb_context) {
5708 rjt_err = LSRJT_UNABLE_TPC;
5709 goto rjt;
5710 }
5711
8b017a30
JS
5712 state = (beacon->lcb_sub_command == LPFC_LCB_ON) ? 1 : 0;
5713 lcb_context->sub_command = beacon->lcb_sub_command;
5714 lcb_context->type = beacon->lcb_type;
5715 lcb_context->frequency = beacon->lcb_frequency;
5716 lcb_context->ox_id = cmdiocb->iocb.unsli3.rcvsli3.ox_id;
5717 lcb_context->rx_id = cmdiocb->iocb.ulpContext;
5718 lcb_context->ndlp = lpfc_nlp_get(ndlp);
5719 if (lpfc_sli4_set_beacon(vport, lcb_context, state)) {
5720 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
5721 LOG_ELS, "0193 failed to send mail box");
e7950423 5722 kfree(lcb_context);
8b017a30
JS
5723 lpfc_nlp_put(ndlp);
5724 rjt_err = LSRJT_UNABLE_TPC;
5725 goto rjt;
5726 }
5727 return 0;
5728rjt:
5729 memset(&stat, 0, sizeof(stat));
5730 stat.un.b.lsRjtRsnCode = rjt_err;
5731 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
5732 return 1;
5733}
5734
5735
e59058c4 5736/**
3621a710 5737 * lpfc_els_flush_rscn - Clean up any rscn activities with a vport
e59058c4
JS
5738 * @vport: pointer to a host virtual N_Port data structure.
5739 *
5740 * This routine cleans up any Registration State Change Notification
5741 * (RSCN) activity with a @vport. Note that the fc_rscn_flush flag of the
5742 * @vport together with the host_lock is used to prevent multiple thread
5743 * trying to access the RSCN array on a same @vport at the same time.
5744 **/
92d7f7b0 5745void
2e0fef85 5746lpfc_els_flush_rscn(struct lpfc_vport *vport)
dea3101e 5747{
2e0fef85
JS
5748 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5749 struct lpfc_hba *phba = vport->phba;
dea3101e
JB
5750 int i;
5751
7f5f3d0d
JS
5752 spin_lock_irq(shost->host_lock);
5753 if (vport->fc_rscn_flush) {
5754 /* Another thread is walking fc_rscn_id_list on this vport */
5755 spin_unlock_irq(shost->host_lock);
5756 return;
5757 }
5758 /* Indicate we are walking lpfc_els_flush_rscn on this vport */
5759 vport->fc_rscn_flush = 1;
5760 spin_unlock_irq(shost->host_lock);
5761
2e0fef85 5762 for (i = 0; i < vport->fc_rscn_id_cnt; i++) {
92d7f7b0 5763 lpfc_in_buf_free(phba, vport->fc_rscn_id_list[i]);
2e0fef85 5764 vport->fc_rscn_id_list[i] = NULL;
dea3101e 5765 }
2e0fef85
JS
5766 spin_lock_irq(shost->host_lock);
5767 vport->fc_rscn_id_cnt = 0;
5768 vport->fc_flag &= ~(FC_RSCN_MODE | FC_RSCN_DISCOVERY);
5769 spin_unlock_irq(shost->host_lock);
5770 lpfc_can_disctmo(vport);
7f5f3d0d
JS
5771 /* Indicate we are done walking this fc_rscn_id_list */
5772 vport->fc_rscn_flush = 0;
dea3101e
JB
5773}
5774
e59058c4 5775/**
3621a710 5776 * lpfc_rscn_payload_check - Check whether there is a pending rscn to a did
e59058c4
JS
5777 * @vport: pointer to a host virtual N_Port data structure.
5778 * @did: remote destination port identifier.
5779 *
5780 * This routine checks whether there is any pending Registration State
5781 * Configuration Notification (RSCN) to a @did on @vport.
5782 *
5783 * Return code
5784 * None zero - The @did matched with a pending rscn
5785 * 0 - not able to match @did with a pending rscn
5786 **/
dea3101e 5787int
2e0fef85 5788lpfc_rscn_payload_check(struct lpfc_vport *vport, uint32_t did)
dea3101e
JB
5789{
5790 D_ID ns_did;
5791 D_ID rscn_did;
dea3101e 5792 uint32_t *lp;
92d7f7b0 5793 uint32_t payload_len, i;
7f5f3d0d 5794 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e
JB
5795
5796 ns_did.un.word = did;
dea3101e
JB
5797
5798 /* Never match fabric nodes for RSCNs */
5799 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
2e0fef85 5800 return 0;
dea3101e
JB
5801
5802 /* If we are doing a FULL RSCN rediscovery, match everything */
2e0fef85 5803 if (vport->fc_flag & FC_RSCN_DISCOVERY)
c9f8735b 5804 return did;
dea3101e 5805
7f5f3d0d
JS
5806 spin_lock_irq(shost->host_lock);
5807 if (vport->fc_rscn_flush) {
5808 /* Another thread is walking fc_rscn_id_list on this vport */
5809 spin_unlock_irq(shost->host_lock);
5810 return 0;
5811 }
5812 /* Indicate we are walking fc_rscn_id_list on this vport */
5813 vport->fc_rscn_flush = 1;
5814 spin_unlock_irq(shost->host_lock);
2e0fef85 5815 for (i = 0; i < vport->fc_rscn_id_cnt; i++) {
92d7f7b0
JS
5816 lp = vport->fc_rscn_id_list[i]->virt;
5817 payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK);
5818 payload_len -= sizeof(uint32_t); /* take off word 0 */
dea3101e 5819 while (payload_len) {
92d7f7b0
JS
5820 rscn_did.un.word = be32_to_cpu(*lp++);
5821 payload_len -= sizeof(uint32_t);
eaf15d5b
JS
5822 switch (rscn_did.un.b.resv & RSCN_ADDRESS_FORMAT_MASK) {
5823 case RSCN_ADDRESS_FORMAT_PORT:
6fb120a7
JS
5824 if ((ns_did.un.b.domain == rscn_did.un.b.domain)
5825 && (ns_did.un.b.area == rscn_did.un.b.area)
5826 && (ns_did.un.b.id == rscn_did.un.b.id))
7f5f3d0d 5827 goto return_did_out;
dea3101e 5828 break;
eaf15d5b 5829 case RSCN_ADDRESS_FORMAT_AREA:
dea3101e
JB
5830 if ((ns_did.un.b.domain == rscn_did.un.b.domain)
5831 && (ns_did.un.b.area == rscn_did.un.b.area))
7f5f3d0d 5832 goto return_did_out;
dea3101e 5833 break;
eaf15d5b 5834 case RSCN_ADDRESS_FORMAT_DOMAIN:
dea3101e 5835 if (ns_did.un.b.domain == rscn_did.un.b.domain)
7f5f3d0d 5836 goto return_did_out;
dea3101e 5837 break;
eaf15d5b 5838 case RSCN_ADDRESS_FORMAT_FABRIC:
7f5f3d0d 5839 goto return_did_out;
dea3101e
JB
5840 }
5841 }
92d7f7b0 5842 }
7f5f3d0d
JS
5843 /* Indicate we are done with walking fc_rscn_id_list on this vport */
5844 vport->fc_rscn_flush = 0;
92d7f7b0 5845 return 0;
7f5f3d0d
JS
5846return_did_out:
5847 /* Indicate we are done with walking fc_rscn_id_list on this vport */
5848 vport->fc_rscn_flush = 0;
5849 return did;
dea3101e
JB
5850}
5851
e59058c4 5852/**
3621a710 5853 * lpfc_rscn_recovery_check - Send recovery event to vport nodes matching rscn
e59058c4
JS
5854 * @vport: pointer to a host virtual N_Port data structure.
5855 *
5856 * This routine sends recovery (NLP_EVT_DEVICE_RECOVERY) event to the
5857 * state machine for a @vport's nodes that are with pending RSCN (Registration
5858 * State Change Notification).
5859 *
5860 * Return code
5861 * 0 - Successful (currently alway return 0)
5862 **/
dea3101e 5863static int
2e0fef85 5864lpfc_rscn_recovery_check(struct lpfc_vport *vport)
dea3101e 5865{
685f0bf7 5866 struct lpfc_nodelist *ndlp = NULL;
dea3101e 5867
0d2b6b83 5868 /* Move all affected nodes by pending RSCNs to NPR state. */
2e0fef85 5869 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
e47c9093 5870 if (!NLP_CHK_NODE_ACT(ndlp) ||
0d2b6b83
JS
5871 (ndlp->nlp_state == NLP_STE_UNUSED_NODE) ||
5872 !lpfc_rscn_payload_check(vport, ndlp->nlp_DID))
685f0bf7 5873 continue;
1c5b12f7
JS
5874
5875 /* NVME Target mode does not do RSCN Recovery. */
8c258641
JS
5876 if (vport->phba->nvmet_support)
5877 continue;
1c5b12f7 5878
2e0fef85 5879 lpfc_disc_state_machine(vport, ndlp, NULL,
0d2b6b83
JS
5880 NLP_EVT_DEVICE_RECOVERY);
5881 lpfc_cancel_retry_delay_tmo(vport, ndlp);
dea3101e 5882 }
c9f8735b 5883 return 0;
dea3101e
JB
5884}
5885
ddcc50f0 5886/**
3621a710 5887 * lpfc_send_rscn_event - Send an RSCN event to management application
ddcc50f0
JS
5888 * @vport: pointer to a host virtual N_Port data structure.
5889 * @cmdiocb: pointer to lpfc command iocb data structure.
5890 *
5891 * lpfc_send_rscn_event sends an RSCN netlink event to management
5892 * applications.
5893 */
5894static void
5895lpfc_send_rscn_event(struct lpfc_vport *vport,
5896 struct lpfc_iocbq *cmdiocb)
5897{
5898 struct lpfc_dmabuf *pcmd;
5899 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5900 uint32_t *payload_ptr;
5901 uint32_t payload_len;
5902 struct lpfc_rscn_event_header *rscn_event_data;
5903
5904 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
5905 payload_ptr = (uint32_t *) pcmd->virt;
5906 payload_len = be32_to_cpu(*payload_ptr & ~ELS_CMD_MASK);
5907
5908 rscn_event_data = kmalloc(sizeof(struct lpfc_rscn_event_header) +
5909 payload_len, GFP_KERNEL);
5910 if (!rscn_event_data) {
5911 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
5912 "0147 Failed to allocate memory for RSCN event\n");
5913 return;
5914 }
5915 rscn_event_data->event_type = FC_REG_RSCN_EVENT;
5916 rscn_event_data->payload_length = payload_len;
5917 memcpy(rscn_event_data->rscn_payload, payload_ptr,
5918 payload_len);
5919
5920 fc_host_post_vendor_event(shost,
5921 fc_get_event_number(),
6599eaaa 5922 sizeof(struct lpfc_rscn_event_header) + payload_len,
ddcc50f0
JS
5923 (char *)rscn_event_data,
5924 LPFC_NL_VENDOR_ID);
5925
5926 kfree(rscn_event_data);
5927}
5928
e59058c4 5929/**
3621a710 5930 * lpfc_els_rcv_rscn - Process an unsolicited rscn iocb
e59058c4
JS
5931 * @vport: pointer to a host virtual N_Port data structure.
5932 * @cmdiocb: pointer to lpfc command iocb data structure.
5933 * @ndlp: pointer to a node-list data structure.
5934 *
5935 * This routine processes an unsolicited RSCN (Registration State Change
5936 * Notification) IOCB. First, the payload of the unsolicited RSCN is walked
5937 * to invoke fc_host_post_event() routine to the FC transport layer. If the
5938 * discover state machine is about to begin discovery, it just accepts the
5939 * RSCN and the discovery process will satisfy the RSCN. If this RSCN only
5940 * contains N_Port IDs for other vports on this HBA, it just accepts the
5941 * RSCN and ignore processing it. If the state machine is in the recovery
5942 * state, the fc_rscn_id_list of this @vport is walked and the
5943 * lpfc_rscn_recovery_check() routine is invoked to send recovery event for
5944 * all nodes that match RSCN payload. Otherwise, the lpfc_els_handle_rscn()
5945 * routine is invoked to handle the RSCN event.
5946 *
5947 * Return code
5948 * 0 - Just sent the acc response
5949 * 1 - Sent the acc response and waited for name server completion
5950 **/
dea3101e 5951static int
2e0fef85 5952lpfc_els_rcv_rscn(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
51ef4c26 5953 struct lpfc_nodelist *ndlp)
dea3101e 5954{
2e0fef85
JS
5955 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5956 struct lpfc_hba *phba = vport->phba;
dea3101e 5957 struct lpfc_dmabuf *pcmd;
92d7f7b0 5958 uint32_t *lp, *datap;
92d7f7b0 5959 uint32_t payload_len, length, nportid, *cmd;
7f5f3d0d 5960 int rscn_cnt;
92d7f7b0 5961 int rscn_id = 0, hba_id = 0;
d2873e4c 5962 int i;
dea3101e 5963
dea3101e
JB
5964 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
5965 lp = (uint32_t *) pcmd->virt;
5966
92d7f7b0
JS
5967 payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK);
5968 payload_len -= sizeof(uint32_t); /* take off word 0 */
dea3101e 5969 /* RSCN received */
e8b62011
JS
5970 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5971 "0214 RSCN received Data: x%x x%x x%x x%x\n",
7f5f3d0d
JS
5972 vport->fc_flag, payload_len, *lp,
5973 vport->fc_rscn_id_cnt);
ddcc50f0
JS
5974
5975 /* Send an RSCN event to the management application */
5976 lpfc_send_rscn_event(vport, cmdiocb);
5977
d2873e4c 5978 for (i = 0; i < payload_len/sizeof(uint32_t); i++)
2e0fef85 5979 fc_host_post_event(shost, fc_get_event_number(),
d2873e4c
JS
5980 FCH_EVT_RSCN, lp[i]);
5981
dea3101e
JB
5982 /* If we are about to begin discovery, just ACC the RSCN.
5983 * Discovery processing will satisfy it.
5984 */
2e0fef85 5985 if (vport->port_state <= LPFC_NS_QRY) {
858c9f6c
JS
5986 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
5987 "RCV RSCN ignore: did:x%x/ste:x%x flg:x%x",
5988 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
5989
51ef4c26 5990 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
c9f8735b 5991 return 0;
dea3101e
JB
5992 }
5993
92d7f7b0
JS
5994 /* If this RSCN just contains NPortIDs for other vports on this HBA,
5995 * just ACC and ignore it.
5996 */
5997 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
3de2a653 5998 !(vport->cfg_peer_port_login)) {
92d7f7b0
JS
5999 i = payload_len;
6000 datap = lp;
6001 while (i > 0) {
6002 nportid = *datap++;
6003 nportid = ((be32_to_cpu(nportid)) & Mask_DID);
6004 i -= sizeof(uint32_t);
6005 rscn_id++;
549e55cd
JS
6006 if (lpfc_find_vport_by_did(phba, nportid))
6007 hba_id++;
92d7f7b0
JS
6008 }
6009 if (rscn_id == hba_id) {
6010 /* ALL NPortIDs in RSCN are on HBA */
e8b62011 6011 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
d7c255b2 6012 "0219 Ignore RSCN "
e8b62011
JS
6013 "Data: x%x x%x x%x x%x\n",
6014 vport->fc_flag, payload_len,
7f5f3d0d 6015 *lp, vport->fc_rscn_id_cnt);
858c9f6c
JS
6016 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
6017 "RCV RSCN vport: did:x%x/ste:x%x flg:x%x",
6018 ndlp->nlp_DID, vport->port_state,
6019 ndlp->nlp_flag);
6020
92d7f7b0 6021 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb,
51ef4c26 6022 ndlp, NULL);
92d7f7b0
JS
6023 return 0;
6024 }
6025 }
6026
7f5f3d0d
JS
6027 spin_lock_irq(shost->host_lock);
6028 if (vport->fc_rscn_flush) {
6029 /* Another thread is walking fc_rscn_id_list on this vport */
7f5f3d0d 6030 vport->fc_flag |= FC_RSCN_DISCOVERY;
97957244 6031 spin_unlock_irq(shost->host_lock);
58da1ffb
JS
6032 /* Send back ACC */
6033 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
7f5f3d0d
JS
6034 return 0;
6035 }
6036 /* Indicate we are walking fc_rscn_id_list on this vport */
6037 vport->fc_rscn_flush = 1;
6038 spin_unlock_irq(shost->host_lock);
af901ca1 6039 /* Get the array count after successfully have the token */
7f5f3d0d 6040 rscn_cnt = vport->fc_rscn_id_cnt;
dea3101e
JB
6041 /* If we are already processing an RSCN, save the received
6042 * RSCN payload buffer, cmdiocb->context2 to process later.
6043 */
2e0fef85 6044 if (vport->fc_flag & (FC_RSCN_MODE | FC_NDISC_ACTIVE)) {
858c9f6c
JS
6045 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
6046 "RCV RSCN defer: did:x%x/ste:x%x flg:x%x",
6047 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
6048
09372820 6049 spin_lock_irq(shost->host_lock);
92d7f7b0
JS
6050 vport->fc_flag |= FC_RSCN_DEFERRED;
6051 if ((rscn_cnt < FC_MAX_HOLD_RSCN) &&
2e0fef85 6052 !(vport->fc_flag & FC_RSCN_DISCOVERY)) {
2e0fef85
JS
6053 vport->fc_flag |= FC_RSCN_MODE;
6054 spin_unlock_irq(shost->host_lock);
92d7f7b0
JS
6055 if (rscn_cnt) {
6056 cmd = vport->fc_rscn_id_list[rscn_cnt-1]->virt;
6057 length = be32_to_cpu(*cmd & ~ELS_CMD_MASK);
6058 }
6059 if ((rscn_cnt) &&
6060 (payload_len + length <= LPFC_BPL_SIZE)) {
6061 *cmd &= ELS_CMD_MASK;
7f5f3d0d 6062 *cmd |= cpu_to_be32(payload_len + length);
92d7f7b0
JS
6063 memcpy(((uint8_t *)cmd) + length, lp,
6064 payload_len);
6065 } else {
6066 vport->fc_rscn_id_list[rscn_cnt] = pcmd;
6067 vport->fc_rscn_id_cnt++;
6068 /* If we zero, cmdiocb->context2, the calling
6069 * routine will not try to free it.
6070 */
6071 cmdiocb->context2 = NULL;
6072 }
dea3101e 6073 /* Deferred RSCN */
e8b62011
JS
6074 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
6075 "0235 Deferred RSCN "
6076 "Data: x%x x%x x%x\n",
6077 vport->fc_rscn_id_cnt, vport->fc_flag,
6078 vport->port_state);
dea3101e 6079 } else {
2e0fef85
JS
6080 vport->fc_flag |= FC_RSCN_DISCOVERY;
6081 spin_unlock_irq(shost->host_lock);
dea3101e 6082 /* ReDiscovery RSCN */
e8b62011
JS
6083 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
6084 "0234 ReDiscovery RSCN "
6085 "Data: x%x x%x x%x\n",
6086 vport->fc_rscn_id_cnt, vport->fc_flag,
6087 vport->port_state);
dea3101e 6088 }
7f5f3d0d
JS
6089 /* Indicate we are done walking fc_rscn_id_list on this vport */
6090 vport->fc_rscn_flush = 0;
dea3101e 6091 /* Send back ACC */
51ef4c26 6092 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
dea3101e 6093 /* send RECOVERY event for ALL nodes that match RSCN payload */
2e0fef85 6094 lpfc_rscn_recovery_check(vport);
09372820 6095 spin_lock_irq(shost->host_lock);
92d7f7b0 6096 vport->fc_flag &= ~FC_RSCN_DEFERRED;
09372820 6097 spin_unlock_irq(shost->host_lock);
c9f8735b 6098 return 0;
dea3101e 6099 }
858c9f6c
JS
6100 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
6101 "RCV RSCN: did:x%x/ste:x%x flg:x%x",
6102 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
6103
2e0fef85
JS
6104 spin_lock_irq(shost->host_lock);
6105 vport->fc_flag |= FC_RSCN_MODE;
6106 spin_unlock_irq(shost->host_lock);
6107 vport->fc_rscn_id_list[vport->fc_rscn_id_cnt++] = pcmd;
7f5f3d0d
JS
6108 /* Indicate we are done walking fc_rscn_id_list on this vport */
6109 vport->fc_rscn_flush = 0;
dea3101e
JB
6110 /*
6111 * If we zero, cmdiocb->context2, the calling routine will
6112 * not try to free it.
6113 */
6114 cmdiocb->context2 = NULL;
2e0fef85 6115 lpfc_set_disctmo(vport);
dea3101e 6116 /* Send back ACC */
51ef4c26 6117 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
dea3101e 6118 /* send RECOVERY event for ALL nodes that match RSCN payload */
2e0fef85 6119 lpfc_rscn_recovery_check(vport);
2e0fef85 6120 return lpfc_els_handle_rscn(vport);
dea3101e
JB
6121}
6122
e59058c4 6123/**
3621a710 6124 * lpfc_els_handle_rscn - Handle rscn for a vport
e59058c4
JS
6125 * @vport: pointer to a host virtual N_Port data structure.
6126 *
6127 * This routine handles the Registration State Configuration Notification
6128 * (RSCN) for a @vport. If login to NameServer does not exist, a new ndlp shall
6129 * be created and a Port Login (PLOGI) to the NameServer is issued. Otherwise,
6130 * if the ndlp to NameServer exists, a Common Transport (CT) command to the
6131 * NameServer shall be issued. If CT command to the NameServer fails to be
6132 * issued, the lpfc_els_flush_rscn() routine shall be invoked to clean up any
6133 * RSCN activities with the @vport.
6134 *
6135 * Return code
6136 * 0 - Cleaned up rscn on the @vport
6137 * 1 - Wait for plogi to name server before proceed
6138 **/
dea3101e 6139int
2e0fef85 6140lpfc_els_handle_rscn(struct lpfc_vport *vport)
dea3101e
JB
6141{
6142 struct lpfc_nodelist *ndlp;
6143
92d7f7b0
JS
6144 /* Ignore RSCN if the port is being torn down. */
6145 if (vport->load_flag & FC_UNLOADING) {
6146 lpfc_els_flush_rscn(vport);
6147 return 0;
6148 }
6149
dea3101e 6150 /* Start timer for RSCN processing */
2e0fef85 6151 lpfc_set_disctmo(vport);
dea3101e
JB
6152
6153 /* RSCN processed */
e8b62011
JS
6154 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
6155 "0215 RSCN processed Data: x%x x%x x%x x%x\n",
6156 vport->fc_flag, 0, vport->fc_rscn_id_cnt,
6157 vport->port_state);
dea3101e
JB
6158
6159 /* To process RSCN, first compare RSCN data with NameServer */
2e0fef85 6160 vport->fc_ns_retry = 0;
0ff10d46
JS
6161 vport->num_disc_nodes = 0;
6162
2e0fef85 6163 ndlp = lpfc_findnode_did(vport, NameServer_DID);
e47c9093
JS
6164 if (ndlp && NLP_CHK_NODE_ACT(ndlp)
6165 && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) {
1c5b12f7
JS
6166 /* Good ndlp, issue CT Request to NameServer. Need to
6167 * know how many gidfts were issued. If none, then just
6168 * flush the RSCN. Otherwise, the outstanding requests
6169 * need to complete.
6170 */
a0f2d3ef 6171 vport->gidft_inp = 0;
1c5b12f7 6172 if (lpfc_issue_gidft(vport) > 0)
c9f8735b 6173 return 1;
dea3101e 6174 } else {
1c5b12f7 6175 /* Nameserver login in question. Revalidate. */
e47c9093
JS
6176 if (ndlp) {
6177 ndlp = lpfc_enable_node(vport, ndlp,
6178 NLP_STE_PLOGI_ISSUE);
6179 if (!ndlp) {
6180 lpfc_els_flush_rscn(vport);
6181 return 0;
6182 }
6183 ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE;
dea3101e 6184 } else {
9d3d340d 6185 ndlp = lpfc_nlp_init(vport, NameServer_DID);
e47c9093
JS
6186 if (!ndlp) {
6187 lpfc_els_flush_rscn(vport);
6188 return 0;
6189 }
5024ab17 6190 ndlp->nlp_prev_state = ndlp->nlp_state;
2e0fef85 6191 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
dea3101e 6192 }
e47c9093
JS
6193 ndlp->nlp_type |= NLP_FABRIC;
6194 lpfc_issue_els_plogi(vport, NameServer_DID, 0);
6195 /* Wait for NameServer login cmpl before we can
6196 * continue
6197 */
6198 return 1;
dea3101e
JB
6199 }
6200
2e0fef85 6201 lpfc_els_flush_rscn(vport);
c9f8735b 6202 return 0;
dea3101e
JB
6203}
6204
e59058c4 6205/**
3621a710 6206 * lpfc_els_rcv_flogi - Process an unsolicited flogi iocb
e59058c4
JS
6207 * @vport: pointer to a host virtual N_Port data structure.
6208 * @cmdiocb: pointer to lpfc command iocb data structure.
6209 * @ndlp: pointer to a node-list data structure.
6210 *
6211 * This routine processes Fabric Login (FLOGI) IOCB received as an ELS
6212 * unsolicited event. An unsolicited FLOGI can be received in a point-to-
6213 * point topology. As an unsolicited FLOGI should not be received in a loop
6214 * mode, any unsolicited FLOGI received in loop mode shall be ignored. The
6215 * lpfc_check_sparm() routine is invoked to check the parameters in the
6216 * unsolicited FLOGI. If parameters validation failed, the routine
6217 * lpfc_els_rsp_reject() shall be called with reject reason code set to
6218 * LSEXP_SPARM_OPTIONS to reject the FLOGI. Otherwise, the Port WWN in the
6219 * FLOGI shall be compared with the Port WWN of the @vport to determine who
6220 * will initiate PLOGI. The higher lexicographical value party shall has
6221 * higher priority (as the winning port) and will initiate PLOGI and
6222 * communicate Port_IDs (Addresses) for both nodes in PLOGI. The result
6223 * of this will be marked in the @vport fc_flag field with FC_PT2PT_PLOGI
6224 * and then the lpfc_els_rsp_acc() routine is invoked to accept the FLOGI.
6225 *
6226 * Return code
6227 * 0 - Successfully processed the unsolicited flogi
6228 * 1 - Failed to process the unsolicited flogi
6229 **/
dea3101e 6230static int
2e0fef85 6231lpfc_els_rcv_flogi(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
51ef4c26 6232 struct lpfc_nodelist *ndlp)
dea3101e 6233{
2e0fef85
JS
6234 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6235 struct lpfc_hba *phba = vport->phba;
dea3101e
JB
6236 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
6237 uint32_t *lp = (uint32_t *) pcmd->virt;
6238 IOCB_t *icmd = &cmdiocb->iocb;
6239 struct serv_parm *sp;
6240 LPFC_MBOXQ_t *mbox;
dea3101e
JB
6241 uint32_t cmd, did;
6242 int rc;
e74c03c8
JS
6243 uint32_t fc_flag = 0;
6244 uint32_t port_state = 0;
dea3101e
JB
6245
6246 cmd = *lp++;
6247 sp = (struct serv_parm *) lp;
6248
6249 /* FLOGI received */
6250
2e0fef85 6251 lpfc_set_disctmo(vport);
dea3101e 6252
76a95d75 6253 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
dea3101e
JB
6254 /* We should never receive a FLOGI in loop mode, ignore it */
6255 did = icmd->un.elsreq64.remoteID;
6256
6257 /* An FLOGI ELS command <elsCmd> was received from DID <did> in
6258 Loop Mode */
e8b62011
JS
6259 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
6260 "0113 An FLOGI ELS command x%x was "
6261 "received from DID x%x in Loop Mode\n",
6262 cmd, did);
c9f8735b 6263 return 1;
dea3101e
JB
6264 }
6265
d6de08cc 6266 (void) lpfc_check_sparm(vport, ndlp, sp, CLASS3, 1);
dea3101e 6267
d6de08cc
JS
6268 /*
6269 * If our portname is greater than the remote portname,
6270 * then we initiate Nport login.
6271 */
939723a4 6272
d6de08cc
JS
6273 rc = memcmp(&vport->fc_portname, &sp->portName,
6274 sizeof(struct lpfc_name));
939723a4 6275
d6de08cc
JS
6276 if (!rc) {
6277 if (phba->sli_rev < LPFC_SLI_REV4) {
6278 mbox = mempool_alloc(phba->mbox_mem_pool,
6279 GFP_KERNEL);
6280 if (!mbox)
6281 return 1;
6282 lpfc_linkdown(phba);
6283 lpfc_init_link(phba, mbox,
6284 phba->cfg_topology,
6285 phba->cfg_link_speed);
6286 mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
6287 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
6288 mbox->vport = vport;
6289 rc = lpfc_sli_issue_mbox(phba, mbox,
6290 MBX_NOWAIT);
6291 lpfc_set_loopback_flag(phba);
6292 if (rc == MBX_NOT_FINISHED)
6293 mempool_free(mbox, phba->mbox_mem_pool);
6294 return 1;
6295 }
6296
6297 /* abort the flogi coming back to ourselves
6298 * due to external loopback on the port.
939723a4 6299 */
d6de08cc
JS
6300 lpfc_els_abort_flogi(phba);
6301 return 0;
6302
6303 } else if (rc > 0) { /* greater than */
2e0fef85 6304 spin_lock_irq(shost->host_lock);
d6de08cc 6305 vport->fc_flag |= FC_PT2PT_PLOGI;
2e0fef85 6306 spin_unlock_irq(shost->host_lock);
939723a4 6307
d6de08cc
JS
6308 /* If we have the high WWPN we can assign our own
6309 * myDID; otherwise, we have to WAIT for a PLOGI
6310 * from the remote NPort to find out what it
6311 * will be.
939723a4 6312 */
d6de08cc 6313 vport->fc_myDID = PT2PT_LocalID;
dea3101e 6314 } else {
d6de08cc
JS
6315 vport->fc_myDID = PT2PT_RemoteID;
6316 }
939723a4 6317
d6de08cc
JS
6318 /*
6319 * The vport state should go to LPFC_FLOGI only
6320 * AFTER we issue a FLOGI, not receive one.
6321 */
6322 spin_lock_irq(shost->host_lock);
6323 fc_flag = vport->fc_flag;
6324 port_state = vport->port_state;
6325 vport->fc_flag |= FC_PT2PT;
6326 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
6327 spin_unlock_irq(shost->host_lock);
6328 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
6329 "3311 Rcv Flogi PS x%x new PS x%x "
6330 "fc_flag x%x new fc_flag x%x\n",
6331 port_state, vport->port_state,
6332 fc_flag, vport->fc_flag);
939723a4 6333
d6de08cc
JS
6334 /*
6335 * We temporarily set fc_myDID to make it look like we are
6336 * a Fabric. This is done just so we end up with the right
6337 * did / sid on the FLOGI ACC rsp.
6338 */
6339 did = vport->fc_myDID;
6340 vport->fc_myDID = Fabric_DID;
dea3101e 6341
d6de08cc 6342 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
eec3d312 6343
dea3101e 6344 /* Send back ACC */
d6de08cc 6345 lpfc_els_rsp_acc(vport, ELS_CMD_FLOGI, cmdiocb, ndlp, NULL);
dea3101e 6346
939723a4
JS
6347 /* Now lets put fc_myDID back to what its supposed to be */
6348 vport->fc_myDID = did;
6349
c9f8735b 6350 return 0;
dea3101e
JB
6351}
6352
e59058c4 6353/**
3621a710 6354 * lpfc_els_rcv_rnid - Process an unsolicited rnid iocb
e59058c4
JS
6355 * @vport: pointer to a host virtual N_Port data structure.
6356 * @cmdiocb: pointer to lpfc command iocb data structure.
6357 * @ndlp: pointer to a node-list data structure.
6358 *
6359 * This routine processes Request Node Identification Data (RNID) IOCB
6360 * received as an ELS unsolicited event. Only when the RNID specified format
6361 * 0x0 or 0xDF (Topology Discovery Specific Node Identification Data)
6362 * present, this routine will invoke the lpfc_els_rsp_rnid_acc() routine to
6363 * Accept (ACC) the RNID ELS command. All the other RNID formats are
6364 * rejected by invoking the lpfc_els_rsp_reject() routine.
6365 *
6366 * Return code
6367 * 0 - Successfully processed rnid iocb (currently always return 0)
6368 **/
dea3101e 6369static int
2e0fef85
JS
6370lpfc_els_rcv_rnid(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6371 struct lpfc_nodelist *ndlp)
dea3101e
JB
6372{
6373 struct lpfc_dmabuf *pcmd;
6374 uint32_t *lp;
dea3101e
JB
6375 RNID *rn;
6376 struct ls_rjt stat;
eb016566 6377 uint32_t cmd;
dea3101e 6378
dea3101e
JB
6379 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
6380 lp = (uint32_t *) pcmd->virt;
6381
6382 cmd = *lp++;
6383 rn = (RNID *) lp;
6384
6385 /* RNID received */
6386
6387 switch (rn->Format) {
6388 case 0:
6389 case RNID_TOPOLOGY_DISC:
6390 /* Send back ACC */
2e0fef85 6391 lpfc_els_rsp_rnid_acc(vport, rn->Format, cmdiocb, ndlp);
dea3101e
JB
6392 break;
6393 default:
6394 /* Reject this request because format not supported */
6395 stat.un.b.lsRjtRsvd0 = 0;
6396 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6397 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
6398 stat.un.b.vendorUnique = 0;
858c9f6c
JS
6399 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
6400 NULL);
dea3101e 6401 }
c9f8735b 6402 return 0;
dea3101e
JB
6403}
6404
12265f68
JS
6405/**
6406 * lpfc_els_rcv_echo - Process an unsolicited echo iocb
6407 * @vport: pointer to a host virtual N_Port data structure.
6408 * @cmdiocb: pointer to lpfc command iocb data structure.
6409 * @ndlp: pointer to a node-list data structure.
6410 *
6411 * Return code
6412 * 0 - Successfully processed echo iocb (currently always return 0)
6413 **/
6414static int
6415lpfc_els_rcv_echo(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6416 struct lpfc_nodelist *ndlp)
6417{
6418 uint8_t *pcmd;
6419
6420 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt);
6421
6422 /* skip over first word of echo command to find echo data */
6423 pcmd += sizeof(uint32_t);
6424
6425 lpfc_els_rsp_echo_acc(vport, pcmd, cmdiocb, ndlp);
6426 return 0;
6427}
6428
e59058c4 6429/**
3621a710 6430 * lpfc_els_rcv_lirr - Process an unsolicited lirr iocb
e59058c4
JS
6431 * @vport: pointer to a host virtual N_Port data structure.
6432 * @cmdiocb: pointer to lpfc command iocb data structure.
6433 * @ndlp: pointer to a node-list data structure.
6434 *
6435 * This routine processes a Link Incident Report Registration(LIRR) IOCB
6436 * received as an ELS unsolicited event. Currently, this function just invokes
6437 * the lpfc_els_rsp_reject() routine to reject the LIRR IOCB unconditionally.
6438 *
6439 * Return code
6440 * 0 - Successfully processed lirr iocb (currently always return 0)
6441 **/
dea3101e 6442static int
2e0fef85
JS
6443lpfc_els_rcv_lirr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6444 struct lpfc_nodelist *ndlp)
7bb3b137
JW
6445{
6446 struct ls_rjt stat;
6447
6448 /* For now, unconditionally reject this command */
6449 stat.un.b.lsRjtRsvd0 = 0;
6450 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6451 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
6452 stat.un.b.vendorUnique = 0;
858c9f6c 6453 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
7bb3b137
JW
6454 return 0;
6455}
6456
5ffc266e
JS
6457/**
6458 * lpfc_els_rcv_rrq - Process an unsolicited rrq iocb
6459 * @vport: pointer to a host virtual N_Port data structure.
6460 * @cmdiocb: pointer to lpfc command iocb data structure.
6461 * @ndlp: pointer to a node-list data structure.
6462 *
6463 * This routine processes a Reinstate Recovery Qualifier (RRQ) IOCB
6464 * received as an ELS unsolicited event. A request to RRQ shall only
6465 * be accepted if the Originator Nx_Port N_Port_ID or the Responder
6466 * Nx_Port N_Port_ID of the target Exchange is the same as the
6467 * N_Port_ID of the Nx_Port that makes the request. If the RRQ is
6468 * not accepted, an LS_RJT with reason code "Unable to perform
6469 * command request" and reason code explanation "Invalid Originator
6470 * S_ID" shall be returned. For now, we just unconditionally accept
6471 * RRQ from the target.
6472 **/
6473static void
6474lpfc_els_rcv_rrq(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6475 struct lpfc_nodelist *ndlp)
6476{
6477 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
19ca7609
JS
6478 if (vport->phba->sli_rev == LPFC_SLI_REV4)
6479 lpfc_els_clear_rrq(vport, cmdiocb, ndlp);
5ffc266e
JS
6480}
6481
12265f68
JS
6482/**
6483 * lpfc_els_rsp_rls_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd
6484 * @phba: pointer to lpfc hba data structure.
6485 * @pmb: pointer to the driver internal queue element for mailbox command.
6486 *
6487 * This routine is the completion callback function for the MBX_READ_LNK_STAT
6488 * mailbox command. This callback function is to actually send the Accept
6489 * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It
6490 * collects the link statistics from the completion of the MBX_READ_LNK_STAT
6491 * mailbox command, constructs the RPS response with the link statistics
6492 * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC
6493 * response to the RPS.
6494 *
6495 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
6496 * will be incremented by 1 for holding the ndlp and the reference to ndlp
6497 * will be stored into the context1 field of the IOCB for the completion
6498 * callback function to the RPS Accept Response ELS IOCB command.
6499 *
6500 **/
6501static void
6502lpfc_els_rsp_rls_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
6503{
6504 MAILBOX_t *mb;
6505 IOCB_t *icmd;
6506 struct RLS_RSP *rls_rsp;
6507 uint8_t *pcmd;
6508 struct lpfc_iocbq *elsiocb;
6509 struct lpfc_nodelist *ndlp;
7851fe2c
JS
6510 uint16_t oxid;
6511 uint16_t rxid;
12265f68
JS
6512 uint32_t cmdsize;
6513
6514 mb = &pmb->u.mb;
6515
6516 ndlp = (struct lpfc_nodelist *) pmb->context2;
7851fe2c
JS
6517 rxid = (uint16_t) ((unsigned long)(pmb->context1) & 0xffff);
6518 oxid = (uint16_t) (((unsigned long)(pmb->context1) >> 16) & 0xffff);
12265f68
JS
6519 pmb->context1 = NULL;
6520 pmb->context2 = NULL;
6521
6522 if (mb->mbxStatus) {
6523 mempool_free(pmb, phba->mbox_mem_pool);
6524 return;
6525 }
6526
6527 cmdsize = sizeof(struct RLS_RSP) + sizeof(uint32_t);
12265f68
JS
6528 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
6529 lpfc_max_els_tries, ndlp,
6530 ndlp->nlp_DID, ELS_CMD_ACC);
6531
6532 /* Decrement the ndlp reference count from previous mbox command */
6533 lpfc_nlp_put(ndlp);
6534
37db57e3
JS
6535 if (!elsiocb) {
6536 mempool_free(pmb, phba->mbox_mem_pool);
12265f68 6537 return;
37db57e3 6538 }
12265f68
JS
6539
6540 icmd = &elsiocb->iocb;
7851fe2c
JS
6541 icmd->ulpContext = rxid;
6542 icmd->unsli3.rcvsli3.ox_id = oxid;
12265f68
JS
6543
6544 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
6545 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
6546 pcmd += sizeof(uint32_t); /* Skip past command */
6547 rls_rsp = (struct RLS_RSP *)pcmd;
6548
6549 rls_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt);
6550 rls_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt);
6551 rls_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt);
6552 rls_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt);
6553 rls_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord);
6554 rls_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt);
37db57e3 6555 mempool_free(pmb, phba->mbox_mem_pool);
12265f68
JS
6556 /* Xmit ELS RLS ACC response tag <ulpIoTag> */
6557 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS,
6558 "2874 Xmit ELS RLS ACC response tag x%x xri x%x, "
6559 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
6560 elsiocb->iotag, elsiocb->iocb.ulpContext,
6561 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
6562 ndlp->nlp_rpi);
6563 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
6564 phba->fc_stat.elsXmitACC++;
6565 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR)
6566 lpfc_els_free_iocb(phba, elsiocb);
6567}
6568
e59058c4 6569/**
3621a710 6570 * lpfc_els_rsp_rps_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd
e59058c4
JS
6571 * @phba: pointer to lpfc hba data structure.
6572 * @pmb: pointer to the driver internal queue element for mailbox command.
6573 *
6574 * This routine is the completion callback function for the MBX_READ_LNK_STAT
6575 * mailbox command. This callback function is to actually send the Accept
6576 * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It
6577 * collects the link statistics from the completion of the MBX_READ_LNK_STAT
6578 * mailbox command, constructs the RPS response with the link statistics
6579 * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC
6580 * response to the RPS.
6581 *
6582 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
6583 * will be incremented by 1 for holding the ndlp and the reference to ndlp
6584 * will be stored into the context1 field of the IOCB for the completion
6585 * callback function to the RPS Accept Response ELS IOCB command.
6586 *
6587 **/
082c0266 6588static void
329f9bc7 6589lpfc_els_rsp_rps_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
7bb3b137 6590{
7bb3b137
JW
6591 MAILBOX_t *mb;
6592 IOCB_t *icmd;
6593 RPS_RSP *rps_rsp;
6594 uint8_t *pcmd;
6595 struct lpfc_iocbq *elsiocb;
6596 struct lpfc_nodelist *ndlp;
7851fe2c
JS
6597 uint16_t status;
6598 uint16_t oxid;
6599 uint16_t rxid;
7bb3b137
JW
6600 uint32_t cmdsize;
6601
04c68496 6602 mb = &pmb->u.mb;
7bb3b137
JW
6603
6604 ndlp = (struct lpfc_nodelist *) pmb->context2;
7851fe2c
JS
6605 rxid = (uint16_t) ((unsigned long)(pmb->context1) & 0xffff);
6606 oxid = (uint16_t) (((unsigned long)(pmb->context1) >> 16) & 0xffff);
041976fb
RD
6607 pmb->context1 = NULL;
6608 pmb->context2 = NULL;
7bb3b137
JW
6609
6610 if (mb->mbxStatus) {
329f9bc7 6611 mempool_free(pmb, phba->mbox_mem_pool);
7bb3b137
JW
6612 return;
6613 }
6614
6615 cmdsize = sizeof(RPS_RSP) + sizeof(uint32_t);
329f9bc7 6616 mempool_free(pmb, phba->mbox_mem_pool);
2e0fef85
JS
6617 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
6618 lpfc_max_els_tries, ndlp,
6619 ndlp->nlp_DID, ELS_CMD_ACC);
fa4066b6
JS
6620
6621 /* Decrement the ndlp reference count from previous mbox command */
329f9bc7 6622 lpfc_nlp_put(ndlp);
fa4066b6 6623
c9f8735b 6624 if (!elsiocb)
7bb3b137 6625 return;
7bb3b137
JW
6626
6627 icmd = &elsiocb->iocb;
7851fe2c
JS
6628 icmd->ulpContext = rxid;
6629 icmd->unsli3.rcvsli3.ox_id = oxid;
7bb3b137
JW
6630
6631 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
6632 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
92d7f7b0 6633 pcmd += sizeof(uint32_t); /* Skip past command */
7bb3b137
JW
6634 rps_rsp = (RPS_RSP *)pcmd;
6635
76a95d75 6636 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP)
7bb3b137
JW
6637 status = 0x10;
6638 else
6639 status = 0x8;
2e0fef85 6640 if (phba->pport->fc_flag & FC_FABRIC)
7bb3b137
JW
6641 status |= 0x4;
6642
6643 rps_rsp->rsvd1 = 0;
09372820
JS
6644 rps_rsp->portStatus = cpu_to_be16(status);
6645 rps_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt);
6646 rps_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt);
6647 rps_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt);
6648 rps_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt);
6649 rps_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord);
6650 rps_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt);
7bb3b137 6651 /* Xmit ELS RPS ACC response tag <ulpIoTag> */
e8b62011
JS
6652 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS,
6653 "0118 Xmit ELS RPS ACC response tag x%x xri x%x, "
6654 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
6655 elsiocb->iotag, elsiocb->iocb.ulpContext,
6656 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
6657 ndlp->nlp_rpi);
858c9f6c 6658 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
7bb3b137 6659 phba->fc_stat.elsXmitACC++;
3772a991 6660 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR)
7bb3b137 6661 lpfc_els_free_iocb(phba, elsiocb);
7bb3b137
JW
6662 return;
6663}
6664
e59058c4 6665/**
12265f68
JS
6666 * lpfc_els_rcv_rls - Process an unsolicited rls iocb
6667 * @vport: pointer to a host virtual N_Port data structure.
6668 * @cmdiocb: pointer to lpfc command iocb data structure.
6669 * @ndlp: pointer to a node-list data structure.
6670 *
6671 * This routine processes Read Port Status (RPL) IOCB received as an
6672 * ELS unsolicited event. It first checks the remote port state. If the
6673 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
6674 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject
6675 * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command
6676 * for reading the HBA link statistics. It is for the callback function,
6677 * lpfc_els_rsp_rls_acc(), set to the MBX_READ_LNK_STAT mailbox command
6678 * to actually sending out RPL Accept (ACC) response.
6679 *
6680 * Return codes
6681 * 0 - Successfully processed rls iocb (currently always return 0)
6682 **/
6683static int
6684lpfc_els_rcv_rls(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6685 struct lpfc_nodelist *ndlp)
6686{
6687 struct lpfc_hba *phba = vport->phba;
6688 LPFC_MBOXQ_t *mbox;
12265f68
JS
6689 struct ls_rjt stat;
6690
6691 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
6692 (ndlp->nlp_state != NLP_STE_MAPPED_NODE))
6693 /* reject the unsolicited RPS request and done with it */
6694 goto reject_out;
6695
12265f68
JS
6696 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC);
6697 if (mbox) {
6698 lpfc_read_lnk_stat(phba, mbox);
7851fe2c
JS
6699 mbox->context1 = (void *)((unsigned long)
6700 ((cmdiocb->iocb.unsli3.rcvsli3.ox_id << 16) |
6701 cmdiocb->iocb.ulpContext)); /* rx_id */
12265f68
JS
6702 mbox->context2 = lpfc_nlp_get(ndlp);
6703 mbox->vport = vport;
6704 mbox->mbox_cmpl = lpfc_els_rsp_rls_acc;
6705 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
6706 != MBX_NOT_FINISHED)
6707 /* Mbox completion will send ELS Response */
6708 return 0;
6709 /* Decrement reference count used for the failed mbox
6710 * command.
6711 */
6712 lpfc_nlp_put(ndlp);
6713 mempool_free(mbox, phba->mbox_mem_pool);
6714 }
6715reject_out:
6716 /* issue rejection response */
6717 stat.un.b.lsRjtRsvd0 = 0;
6718 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6719 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
6720 stat.un.b.vendorUnique = 0;
6721 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
6722 return 0;
6723}
6724
6725/**
6726 * lpfc_els_rcv_rtv - Process an unsolicited rtv iocb
6727 * @vport: pointer to a host virtual N_Port data structure.
6728 * @cmdiocb: pointer to lpfc command iocb data structure.
6729 * @ndlp: pointer to a node-list data structure.
6730 *
6731 * This routine processes Read Timout Value (RTV) IOCB received as an
6732 * ELS unsolicited event. It first checks the remote port state. If the
6733 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
6734 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject
6735 * response. Otherwise, it sends the Accept(ACC) response to a Read Timeout
6736 * Value (RTV) unsolicited IOCB event.
6737 *
6738 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
6739 * will be incremented by 1 for holding the ndlp and the reference to ndlp
6740 * will be stored into the context1 field of the IOCB for the completion
6741 * callback function to the RPS Accept Response ELS IOCB command.
6742 *
6743 * Return codes
6744 * 0 - Successfully processed rtv iocb (currently always return 0)
6745 **/
6746static int
6747lpfc_els_rcv_rtv(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6748 struct lpfc_nodelist *ndlp)
6749{
6750 struct lpfc_hba *phba = vport->phba;
6751 struct ls_rjt stat;
6752 struct RTV_RSP *rtv_rsp;
6753 uint8_t *pcmd;
6754 struct lpfc_iocbq *elsiocb;
6755 uint32_t cmdsize;
6756
6757
6758 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
6759 (ndlp->nlp_state != NLP_STE_MAPPED_NODE))
6760 /* reject the unsolicited RPS request and done with it */
6761 goto reject_out;
6762
6763 cmdsize = sizeof(struct RTV_RSP) + sizeof(uint32_t);
6764 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
6765 lpfc_max_els_tries, ndlp,
6766 ndlp->nlp_DID, ELS_CMD_ACC);
6767
6768 if (!elsiocb)
6769 return 1;
6770
6771 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
6772 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
6773 pcmd += sizeof(uint32_t); /* Skip past command */
6774
6775 /* use the command's xri in the response */
7851fe2c
JS
6776 elsiocb->iocb.ulpContext = cmdiocb->iocb.ulpContext; /* Xri / rx_id */
6777 elsiocb->iocb.unsli3.rcvsli3.ox_id = cmdiocb->iocb.unsli3.rcvsli3.ox_id;
12265f68
JS
6778
6779 rtv_rsp = (struct RTV_RSP *)pcmd;
6780
6781 /* populate RTV payload */
6782 rtv_rsp->ratov = cpu_to_be32(phba->fc_ratov * 1000); /* report msecs */
6783 rtv_rsp->edtov = cpu_to_be32(phba->fc_edtov);
6784 bf_set(qtov_edtovres, rtv_rsp, phba->fc_edtovResol ? 1 : 0);
6785 bf_set(qtov_rttov, rtv_rsp, 0); /* Field is for FC ONLY */
6786 rtv_rsp->qtov = cpu_to_be32(rtv_rsp->qtov);
6787
6788 /* Xmit ELS RLS ACC response tag <ulpIoTag> */
6789 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS,
6790 "2875 Xmit ELS RTV ACC response tag x%x xri x%x, "
6791 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x, "
6792 "Data: x%x x%x x%x\n",
6793 elsiocb->iotag, elsiocb->iocb.ulpContext,
6794 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
6795 ndlp->nlp_rpi,
6796 rtv_rsp->ratov, rtv_rsp->edtov, rtv_rsp->qtov);
6797 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
6798 phba->fc_stat.elsXmitACC++;
6799 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR)
6800 lpfc_els_free_iocb(phba, elsiocb);
6801 return 0;
6802
6803reject_out:
6804 /* issue rejection response */
6805 stat.un.b.lsRjtRsvd0 = 0;
6806 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6807 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
6808 stat.un.b.vendorUnique = 0;
6809 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
6810 return 0;
6811}
6812
6813/* lpfc_els_rcv_rps - Process an unsolicited rps iocb
e59058c4
JS
6814 * @vport: pointer to a host virtual N_Port data structure.
6815 * @cmdiocb: pointer to lpfc command iocb data structure.
6816 * @ndlp: pointer to a node-list data structure.
6817 *
6818 * This routine processes Read Port Status (RPS) IOCB received as an
6819 * ELS unsolicited event. It first checks the remote port state. If the
6820 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
6821 * state, it invokes the lpfc_els_rsp_reject() routine to send the reject
6822 * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command
6823 * for reading the HBA link statistics. It is for the callback function,
6824 * lpfc_els_rsp_rps_acc(), set to the MBX_READ_LNK_STAT mailbox command
6825 * to actually sending out RPS Accept (ACC) response.
6826 *
6827 * Return codes
6828 * 0 - Successfully processed rps iocb (currently always return 0)
6829 **/
7bb3b137 6830static int
2e0fef85
JS
6831lpfc_els_rcv_rps(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6832 struct lpfc_nodelist *ndlp)
dea3101e 6833{
2e0fef85 6834 struct lpfc_hba *phba = vport->phba;
dea3101e 6835 uint32_t *lp;
7bb3b137
JW
6836 uint8_t flag;
6837 LPFC_MBOXQ_t *mbox;
6838 struct lpfc_dmabuf *pcmd;
6839 RPS *rps;
6840 struct ls_rjt stat;
6841
2fe165b6 6842 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
90160e01
JS
6843 (ndlp->nlp_state != NLP_STE_MAPPED_NODE))
6844 /* reject the unsolicited RPS request and done with it */
6845 goto reject_out;
7bb3b137
JW
6846
6847 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
6848 lp = (uint32_t *) pcmd->virt;
6849 flag = (be32_to_cpu(*lp++) & 0xf);
6850 rps = (RPS *) lp;
6851
6852 if ((flag == 0) ||
6853 ((flag == 1) && (be32_to_cpu(rps->un.portNum) == 0)) ||
2e0fef85 6854 ((flag == 2) && (memcmp(&rps->un.portName, &vport->fc_portname,
92d7f7b0 6855 sizeof(struct lpfc_name)) == 0))) {
2e0fef85 6856
92d7f7b0
JS
6857 printk("Fix me....\n");
6858 dump_stack();
2e0fef85
JS
6859 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC);
6860 if (mbox) {
7bb3b137 6861 lpfc_read_lnk_stat(phba, mbox);
7851fe2c
JS
6862 mbox->context1 = (void *)((unsigned long)
6863 ((cmdiocb->iocb.unsli3.rcvsli3.ox_id << 16) |
6864 cmdiocb->iocb.ulpContext)); /* rx_id */
329f9bc7 6865 mbox->context2 = lpfc_nlp_get(ndlp);
92d7f7b0 6866 mbox->vport = vport;
7bb3b137 6867 mbox->mbox_cmpl = lpfc_els_rsp_rps_acc;
fa4066b6 6868 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
0b727fea 6869 != MBX_NOT_FINISHED)
7bb3b137
JW
6870 /* Mbox completion will send ELS Response */
6871 return 0;
fa4066b6
JS
6872 /* Decrement reference count used for the failed mbox
6873 * command.
6874 */
329f9bc7 6875 lpfc_nlp_put(ndlp);
7bb3b137
JW
6876 mempool_free(mbox, phba->mbox_mem_pool);
6877 }
6878 }
90160e01
JS
6879
6880reject_out:
6881 /* issue rejection response */
7bb3b137
JW
6882 stat.un.b.lsRjtRsvd0 = 0;
6883 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6884 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
6885 stat.un.b.vendorUnique = 0;
858c9f6c 6886 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
7bb3b137
JW
6887 return 0;
6888}
6889
19ca7609
JS
6890/* lpfc_issue_els_rrq - Process an unsolicited rps iocb
6891 * @vport: pointer to a host virtual N_Port data structure.
6892 * @ndlp: pointer to a node-list data structure.
6893 * @did: DID of the target.
6894 * @rrq: Pointer to the rrq struct.
6895 *
6896 * Build a ELS RRQ command and send it to the target. If the issue_iocb is
6897 * Successful the the completion handler will clear the RRQ.
6898 *
6899 * Return codes
6900 * 0 - Successfully sent rrq els iocb.
6901 * 1 - Failed to send rrq els iocb.
6902 **/
6903static int
6904lpfc_issue_els_rrq(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
6905 uint32_t did, struct lpfc_node_rrq *rrq)
6906{
6907 struct lpfc_hba *phba = vport->phba;
6908 struct RRQ *els_rrq;
19ca7609
JS
6909 struct lpfc_iocbq *elsiocb;
6910 uint8_t *pcmd;
6911 uint16_t cmdsize;
6912 int ret;
6913
6914
6915 if (ndlp != rrq->ndlp)
6916 ndlp = rrq->ndlp;
6917 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
6918 return 1;
6919
6920 /* If ndlp is not NULL, we will bump the reference count on it */
6921 cmdsize = (sizeof(uint32_t) + sizeof(struct RRQ));
6922 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, did,
6923 ELS_CMD_RRQ);
6924 if (!elsiocb)
6925 return 1;
6926
19ca7609
JS
6927 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
6928
6929 /* For RRQ request, remainder of payload is Exchange IDs */
6930 *((uint32_t *) (pcmd)) = ELS_CMD_RRQ;
6931 pcmd += sizeof(uint32_t);
6932 els_rrq = (struct RRQ *) pcmd;
6933
ee0f4fe1 6934 bf_set(rrq_oxid, els_rrq, phba->sli4_hba.xri_ids[rrq->xritag]);
19ca7609
JS
6935 bf_set(rrq_rxid, els_rrq, rrq->rxid);
6936 bf_set(rrq_did, els_rrq, vport->fc_myDID);
6937 els_rrq->rrq = cpu_to_be32(els_rrq->rrq);
6938 els_rrq->rrq_exchg = cpu_to_be32(els_rrq->rrq_exchg);
6939
6940
6941 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
6942 "Issue RRQ: did:x%x",
6943 did, rrq->xritag, rrq->rxid);
6944 elsiocb->context_un.rrq = rrq;
6945 elsiocb->iocb_cmpl = lpfc_cmpl_els_rrq;
6946 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
6947
6948 if (ret == IOCB_ERROR) {
6949 lpfc_els_free_iocb(phba, elsiocb);
6950 return 1;
6951 }
6952 return 0;
6953}
6954
6955/**
6956 * lpfc_send_rrq - Sends ELS RRQ if needed.
6957 * @phba: pointer to lpfc hba data structure.
6958 * @rrq: pointer to the active rrq.
6959 *
6960 * This routine will call the lpfc_issue_els_rrq if the rrq is
6961 * still active for the xri. If this function returns a failure then
6962 * the caller needs to clean up the RRQ by calling lpfc_clr_active_rrq.
6963 *
6964 * Returns 0 Success.
6965 * 1 Failure.
6966 **/
6967int
6968lpfc_send_rrq(struct lpfc_hba *phba, struct lpfc_node_rrq *rrq)
6969{
6970 struct lpfc_nodelist *ndlp = lpfc_findnode_did(rrq->vport,
6971 rrq->nlp_DID);
6972 if (lpfc_test_rrq_active(phba, ndlp, rrq->xritag))
6973 return lpfc_issue_els_rrq(rrq->vport, ndlp,
6974 rrq->nlp_DID, rrq);
6975 else
6976 return 1;
6977}
6978
e59058c4 6979/**
3621a710 6980 * lpfc_els_rsp_rpl_acc - Issue an accept rpl els command
e59058c4
JS
6981 * @vport: pointer to a host virtual N_Port data structure.
6982 * @cmdsize: size of the ELS command.
6983 * @oldiocb: pointer to the original lpfc command iocb data structure.
6984 * @ndlp: pointer to a node-list data structure.
6985 *
6986 * This routine issuees an Accept (ACC) Read Port List (RPL) ELS command.
6987 * It is to be called by the lpfc_els_rcv_rpl() routine to accept the RPL.
6988 *
6989 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
6990 * will be incremented by 1 for holding the ndlp and the reference to ndlp
6991 * will be stored into the context1 field of the IOCB for the completion
6992 * callback function to the RPL Accept Response ELS command.
6993 *
6994 * Return code
6995 * 0 - Successfully issued ACC RPL ELS command
6996 * 1 - Failed to issue ACC RPL ELS command
6997 **/
082c0266 6998static int
2e0fef85
JS
6999lpfc_els_rsp_rpl_acc(struct lpfc_vport *vport, uint16_t cmdsize,
7000 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
7bb3b137 7001{
2e0fef85
JS
7002 struct lpfc_hba *phba = vport->phba;
7003 IOCB_t *icmd, *oldcmd;
7bb3b137
JW
7004 RPL_RSP rpl_rsp;
7005 struct lpfc_iocbq *elsiocb;
7bb3b137 7006 uint8_t *pcmd;
dea3101e 7007
2e0fef85
JS
7008 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
7009 ndlp->nlp_DID, ELS_CMD_ACC);
7bb3b137 7010
488d1469 7011 if (!elsiocb)
7bb3b137 7012 return 1;
488d1469 7013
7bb3b137
JW
7014 icmd = &elsiocb->iocb;
7015 oldcmd = &oldiocb->iocb;
7851fe2c
JS
7016 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
7017 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
7bb3b137
JW
7018
7019 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
7020 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
92d7f7b0 7021 pcmd += sizeof(uint16_t);
7bb3b137
JW
7022 *((uint16_t *)(pcmd)) = be16_to_cpu(cmdsize);
7023 pcmd += sizeof(uint16_t);
7024
7025 /* Setup the RPL ACC payload */
7026 rpl_rsp.listLen = be32_to_cpu(1);
7027 rpl_rsp.index = 0;
7028 rpl_rsp.port_num_blk.portNum = 0;
2e0fef85
JS
7029 rpl_rsp.port_num_blk.portID = be32_to_cpu(vport->fc_myDID);
7030 memcpy(&rpl_rsp.port_num_blk.portName, &vport->fc_portname,
7bb3b137 7031 sizeof(struct lpfc_name));
7bb3b137 7032 memcpy(pcmd, &rpl_rsp, cmdsize - sizeof(uint32_t));
7bb3b137 7033 /* Xmit ELS RPL ACC response tag <ulpIoTag> */
e8b62011
JS
7034 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
7035 "0120 Xmit ELS RPL ACC response tag x%x "
7036 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
7037 "rpi x%x\n",
7038 elsiocb->iotag, elsiocb->iocb.ulpContext,
7039 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
7040 ndlp->nlp_rpi);
858c9f6c 7041 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
7bb3b137 7042 phba->fc_stat.elsXmitACC++;
3772a991
JS
7043 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
7044 IOCB_ERROR) {
7bb3b137
JW
7045 lpfc_els_free_iocb(phba, elsiocb);
7046 return 1;
7047 }
7048 return 0;
7049}
7050
e59058c4 7051/**
3621a710 7052 * lpfc_els_rcv_rpl - Process an unsolicited rpl iocb
e59058c4
JS
7053 * @vport: pointer to a host virtual N_Port data structure.
7054 * @cmdiocb: pointer to lpfc command iocb data structure.
7055 * @ndlp: pointer to a node-list data structure.
7056 *
7057 * This routine processes Read Port List (RPL) IOCB received as an ELS
7058 * unsolicited event. It first checks the remote port state. If the remote
7059 * port is not in NLP_STE_UNMAPPED_NODE and NLP_STE_MAPPED_NODE states, it
7060 * invokes the lpfc_els_rsp_reject() routine to send reject response.
7061 * Otherwise, this routine then invokes the lpfc_els_rsp_rpl_acc() routine
7062 * to accept the RPL.
7063 *
7064 * Return code
7065 * 0 - Successfully processed rpl iocb (currently always return 0)
7066 **/
7bb3b137 7067static int
2e0fef85
JS
7068lpfc_els_rcv_rpl(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
7069 struct lpfc_nodelist *ndlp)
7bb3b137
JW
7070{
7071 struct lpfc_dmabuf *pcmd;
7072 uint32_t *lp;
7073 uint32_t maxsize;
7074 uint16_t cmdsize;
7075 RPL *rpl;
7076 struct ls_rjt stat;
7077
2fe165b6
JW
7078 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
7079 (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) {
90160e01 7080 /* issue rejection response */
7bb3b137
JW
7081 stat.un.b.lsRjtRsvd0 = 0;
7082 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
7083 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
7084 stat.un.b.vendorUnique = 0;
858c9f6c
JS
7085 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
7086 NULL);
90160e01
JS
7087 /* rejected the unsolicited RPL request and done with it */
7088 return 0;
7bb3b137
JW
7089 }
7090
dea3101e
JB
7091 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
7092 lp = (uint32_t *) pcmd->virt;
7bb3b137 7093 rpl = (RPL *) (lp + 1);
7bb3b137 7094 maxsize = be32_to_cpu(rpl->maxsize);
dea3101e 7095
7bb3b137
JW
7096 /* We support only one port */
7097 if ((rpl->index == 0) &&
7098 ((maxsize == 0) ||
7099 ((maxsize * sizeof(uint32_t)) >= sizeof(RPL_RSP)))) {
7100 cmdsize = sizeof(uint32_t) + sizeof(RPL_RSP);
2fe165b6 7101 } else {
7bb3b137
JW
7102 cmdsize = sizeof(uint32_t) + maxsize * sizeof(uint32_t);
7103 }
2e0fef85 7104 lpfc_els_rsp_rpl_acc(vport, cmdsize, cmdiocb, ndlp);
dea3101e
JB
7105
7106 return 0;
7107}
7108
e59058c4 7109/**
3621a710 7110 * lpfc_els_rcv_farp - Process an unsolicited farp request els command
e59058c4
JS
7111 * @vport: pointer to a virtual N_Port data structure.
7112 * @cmdiocb: pointer to lpfc command iocb data structure.
7113 * @ndlp: pointer to a node-list data structure.
7114 *
7115 * This routine processes Fibre Channel Address Resolution Protocol
7116 * (FARP) Request IOCB received as an ELS unsolicited event. Currently,
7117 * the lpfc driver only supports matching on WWPN or WWNN for FARP. As such,
7118 * FARP_MATCH_PORT flag and FARP_MATCH_NODE flag are checked against the
7119 * Match Flag in the FARP request IOCB: if FARP_MATCH_PORT flag is set, the
7120 * remote PortName is compared against the FC PortName stored in the @vport
7121 * data structure; if FARP_MATCH_NODE flag is set, the remote NodeName is
7122 * compared against the FC NodeName stored in the @vport data structure.
7123 * If any of these matches and the FARP_REQUEST_FARPR flag is set in the
7124 * FARP request IOCB Response Flag, the lpfc_issue_els_farpr() routine is
7125 * invoked to send out FARP Response to the remote node. Before sending the
7126 * FARP Response, however, the FARP_REQUEST_PLOGI flag is check in the FARP
7127 * request IOCB Response Flag and, if it is set, the lpfc_issue_els_plogi()
7128 * routine is invoked to log into the remote port first.
7129 *
7130 * Return code
7131 * 0 - Either the FARP Match Mode not supported or successfully processed
7132 **/
dea3101e 7133static int
2e0fef85
JS
7134lpfc_els_rcv_farp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
7135 struct lpfc_nodelist *ndlp)
dea3101e
JB
7136{
7137 struct lpfc_dmabuf *pcmd;
7138 uint32_t *lp;
7139 IOCB_t *icmd;
7140 FARP *fp;
7141 uint32_t cmd, cnt, did;
7142
7143 icmd = &cmdiocb->iocb;
7144 did = icmd->un.elsreq64.remoteID;
7145 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
7146 lp = (uint32_t *) pcmd->virt;
7147
7148 cmd = *lp++;
7149 fp = (FARP *) lp;
dea3101e 7150 /* FARP-REQ received from DID <did> */
e8b62011
JS
7151 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
7152 "0601 FARP-REQ received from DID x%x\n", did);
dea3101e
JB
7153 /* We will only support match on WWPN or WWNN */
7154 if (fp->Mflags & ~(FARP_MATCH_NODE | FARP_MATCH_PORT)) {
c9f8735b 7155 return 0;
dea3101e
JB
7156 }
7157
7158 cnt = 0;
7159 /* If this FARP command is searching for my portname */
7160 if (fp->Mflags & FARP_MATCH_PORT) {
2e0fef85 7161 if (memcmp(&fp->RportName, &vport->fc_portname,
92d7f7b0 7162 sizeof(struct lpfc_name)) == 0)
dea3101e
JB
7163 cnt = 1;
7164 }
7165
7166 /* If this FARP command is searching for my nodename */
7167 if (fp->Mflags & FARP_MATCH_NODE) {
2e0fef85 7168 if (memcmp(&fp->RnodeName, &vport->fc_nodename,
92d7f7b0 7169 sizeof(struct lpfc_name)) == 0)
dea3101e
JB
7170 cnt = 1;
7171 }
7172
7173 if (cnt) {
7174 if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) ||
7175 (ndlp->nlp_state == NLP_STE_MAPPED_NODE)) {
7176 /* Log back into the node before sending the FARP. */
7177 if (fp->Rflags & FARP_REQUEST_PLOGI) {
5024ab17 7178 ndlp->nlp_prev_state = ndlp->nlp_state;
2e0fef85 7179 lpfc_nlp_set_state(vport, ndlp,
de0c5b32 7180 NLP_STE_PLOGI_ISSUE);
2e0fef85 7181 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
dea3101e
JB
7182 }
7183
7184 /* Send a FARP response to that node */
2e0fef85
JS
7185 if (fp->Rflags & FARP_REQUEST_FARPR)
7186 lpfc_issue_els_farpr(vport, did, 0);
dea3101e
JB
7187 }
7188 }
c9f8735b 7189 return 0;
dea3101e
JB
7190}
7191
e59058c4 7192/**
3621a710 7193 * lpfc_els_rcv_farpr - Process an unsolicited farp response iocb
e59058c4
JS
7194 * @vport: pointer to a host virtual N_Port data structure.
7195 * @cmdiocb: pointer to lpfc command iocb data structure.
7196 * @ndlp: pointer to a node-list data structure.
7197 *
7198 * This routine processes Fibre Channel Address Resolution Protocol
7199 * Response (FARPR) IOCB received as an ELS unsolicited event. It simply
7200 * invokes the lpfc_els_rsp_acc() routine to the remote node to accept
7201 * the FARP response request.
7202 *
7203 * Return code
7204 * 0 - Successfully processed FARPR IOCB (currently always return 0)
7205 **/
dea3101e 7206static int
2e0fef85
JS
7207lpfc_els_rcv_farpr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
7208 struct lpfc_nodelist *ndlp)
dea3101e
JB
7209{
7210 struct lpfc_dmabuf *pcmd;
7211 uint32_t *lp;
7212 IOCB_t *icmd;
7213 uint32_t cmd, did;
7214
7215 icmd = &cmdiocb->iocb;
7216 did = icmd->un.elsreq64.remoteID;
7217 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
7218 lp = (uint32_t *) pcmd->virt;
7219
7220 cmd = *lp++;
7221 /* FARP-RSP received from DID <did> */
e8b62011
JS
7222 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
7223 "0600 FARP-RSP received from DID x%x\n", did);
dea3101e 7224 /* ACCEPT the Farp resp request */
51ef4c26 7225 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
dea3101e
JB
7226
7227 return 0;
7228}
7229
e59058c4 7230/**
3621a710 7231 * lpfc_els_rcv_fan - Process an unsolicited fan iocb command
e59058c4
JS
7232 * @vport: pointer to a host virtual N_Port data structure.
7233 * @cmdiocb: pointer to lpfc command iocb data structure.
7234 * @fan_ndlp: pointer to a node-list data structure.
7235 *
7236 * This routine processes a Fabric Address Notification (FAN) IOCB
7237 * command received as an ELS unsolicited event. The FAN ELS command will
7238 * only be processed on a physical port (i.e., the @vport represents the
7239 * physical port). The fabric NodeName and PortName from the FAN IOCB are
7240 * compared against those in the phba data structure. If any of those is
7241 * different, the lpfc_initial_flogi() routine is invoked to initialize
7242 * Fabric Login (FLOGI) to the fabric to start the discover over. Otherwise,
7243 * if both of those are identical, the lpfc_issue_fabric_reglogin() routine
7244 * is invoked to register login to the fabric.
7245 *
7246 * Return code
7247 * 0 - Successfully processed fan iocb (currently always return 0).
7248 **/
dea3101e 7249static int
2e0fef85
JS
7250lpfc_els_rcv_fan(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
7251 struct lpfc_nodelist *fan_ndlp)
dea3101e 7252{
0d2b6b83 7253 struct lpfc_hba *phba = vport->phba;
dea3101e 7254 uint32_t *lp;
5024ab17 7255 FAN *fp;
dea3101e 7256
0d2b6b83
JS
7257 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0265 FAN received\n");
7258 lp = (uint32_t *)((struct lpfc_dmabuf *)cmdiocb->context2)->virt;
7259 fp = (FAN *) ++lp;
5024ab17 7260 /* FAN received; Fan does not have a reply sequence */
0d2b6b83
JS
7261 if ((vport == phba->pport) &&
7262 (vport->port_state == LPFC_LOCAL_CFG_LINK)) {
5024ab17 7263 if ((memcmp(&phba->fc_fabparam.nodeName, &fp->FnodeName,
0d2b6b83 7264 sizeof(struct lpfc_name))) ||
5024ab17 7265 (memcmp(&phba->fc_fabparam.portName, &fp->FportName,
0d2b6b83
JS
7266 sizeof(struct lpfc_name)))) {
7267 /* This port has switched fabrics. FLOGI is required */
76a95d75 7268 lpfc_issue_init_vfi(vport);
0d2b6b83
JS
7269 } else {
7270 /* FAN verified - skip FLOGI */
7271 vport->fc_myDID = vport->fc_prevDID;
6fb120a7
JS
7272 if (phba->sli_rev < LPFC_SLI_REV4)
7273 lpfc_issue_fabric_reglogin(vport);
1b51197d
JS
7274 else {
7275 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
7276 "3138 Need register VFI: (x%x/%x)\n",
7277 vport->fc_prevDID, vport->fc_myDID);
6fb120a7 7278 lpfc_issue_reg_vfi(vport);
1b51197d 7279 }
5024ab17 7280 }
dea3101e 7281 }
c9f8735b 7282 return 0;
dea3101e
JB
7283}
7284
e59058c4 7285/**
3621a710 7286 * lpfc_els_timeout - Handler funciton to the els timer
e59058c4
JS
7287 * @ptr: holder for the timer function associated data.
7288 *
7289 * This routine is invoked by the ELS timer after timeout. It posts the ELS
7290 * timer timeout event by setting the WORKER_ELS_TMO bit to the work port
7291 * event bitmap and then invokes the lpfc_worker_wake_up() routine to wake
7292 * up the worker thread. It is for the worker thread to invoke the routine
7293 * lpfc_els_timeout_handler() to work on the posted event WORKER_ELS_TMO.
7294 **/
dea3101e
JB
7295void
7296lpfc_els_timeout(unsigned long ptr)
7297{
2e0fef85
JS
7298 struct lpfc_vport *vport = (struct lpfc_vport *) ptr;
7299 struct lpfc_hba *phba = vport->phba;
5e9d9b82 7300 uint32_t tmo_posted;
dea3101e
JB
7301 unsigned long iflag;
7302
2e0fef85 7303 spin_lock_irqsave(&vport->work_port_lock, iflag);
5e9d9b82 7304 tmo_posted = vport->work_port_events & WORKER_ELS_TMO;
06918ac5 7305 if ((!tmo_posted) && (!(vport->load_flag & FC_UNLOADING)))
2e0fef85 7306 vport->work_port_events |= WORKER_ELS_TMO;
5e9d9b82 7307 spin_unlock_irqrestore(&vport->work_port_lock, iflag);
92d7f7b0 7308
06918ac5 7309 if ((!tmo_posted) && (!(vport->load_flag & FC_UNLOADING)))
5e9d9b82 7310 lpfc_worker_wake_up(phba);
dea3101e
JB
7311 return;
7312}
7313
2a9bf3d0 7314
e59058c4 7315/**
3621a710 7316 * lpfc_els_timeout_handler - Process an els timeout event
e59058c4
JS
7317 * @vport: pointer to a virtual N_Port data structure.
7318 *
7319 * This routine is the actual handler function that processes an ELS timeout
7320 * event. It walks the ELS ring to get and abort all the IOCBs (except the
7321 * ABORT/CLOSE/FARP/FARPR/FDISC), which are associated with the @vport by
7322 * invoking the lpfc_sli_issue_abort_iotag() routine.
7323 **/
dea3101e 7324void
2e0fef85 7325lpfc_els_timeout_handler(struct lpfc_vport *vport)
dea3101e 7326{
2e0fef85 7327 struct lpfc_hba *phba = vport->phba;
dea3101e
JB
7328 struct lpfc_sli_ring *pring;
7329 struct lpfc_iocbq *tmp_iocb, *piocb;
7330 IOCB_t *cmd = NULL;
7331 struct lpfc_dmabuf *pcmd;
2e0fef85 7332 uint32_t els_command = 0;
dea3101e 7333 uint32_t timeout;
2e0fef85 7334 uint32_t remote_ID = 0xffffffff;
2a9bf3d0
JS
7335 LIST_HEAD(abort_list);
7336
dea3101e 7337
dea3101e
JB
7338 timeout = (uint32_t)(phba->fc_ratov << 1);
7339
895427bd
JS
7340 pring = lpfc_phba_elsring(phba);
7341
06918ac5
JS
7342 if ((phba->pport->load_flag & FC_UNLOADING))
7343 return;
2a9bf3d0 7344 spin_lock_irq(&phba->hbalock);
0976e1a6
JS
7345 if (phba->sli_rev == LPFC_SLI_REV4)
7346 spin_lock(&pring->ring_lock);
2a9bf3d0 7347
06918ac5
JS
7348 if ((phba->pport->load_flag & FC_UNLOADING)) {
7349 if (phba->sli_rev == LPFC_SLI_REV4)
7350 spin_unlock(&pring->ring_lock);
7351 spin_unlock_irq(&phba->hbalock);
7352 return;
7353 }
7354
0976e1a6 7355 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) {
dea3101e
JB
7356 cmd = &piocb->iocb;
7357
2e0fef85
JS
7358 if ((piocb->iocb_flag & LPFC_IO_LIBDFC) != 0 ||
7359 piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
7360 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
dea3101e 7361 continue;
2e0fef85
JS
7362
7363 if (piocb->vport != vport)
7364 continue;
7365
dea3101e 7366 pcmd = (struct lpfc_dmabuf *) piocb->context2;
2e0fef85
JS
7367 if (pcmd)
7368 els_command = *(uint32_t *) (pcmd->virt);
dea3101e 7369
92d7f7b0
JS
7370 if (els_command == ELS_CMD_FARP ||
7371 els_command == ELS_CMD_FARPR ||
7372 els_command == ELS_CMD_FDISC)
7373 continue;
7374
dea3101e 7375 if (piocb->drvrTimeout > 0) {
92d7f7b0 7376 if (piocb->drvrTimeout >= timeout)
dea3101e 7377 piocb->drvrTimeout -= timeout;
92d7f7b0 7378 else
dea3101e 7379 piocb->drvrTimeout = 0;
dea3101e
JB
7380 continue;
7381 }
7382
2e0fef85
JS
7383 remote_ID = 0xffffffff;
7384 if (cmd->ulpCommand != CMD_GEN_REQUEST64_CR)
dea3101e 7385 remote_ID = cmd->un.elsreq64.remoteID;
2e0fef85
JS
7386 else {
7387 struct lpfc_nodelist *ndlp;
7388 ndlp = __lpfc_findnode_rpi(vport, cmd->ulpContext);
58da1ffb 7389 if (ndlp && NLP_CHK_NODE_ACT(ndlp))
2e0fef85 7390 remote_ID = ndlp->nlp_DID;
dea3101e 7391 }
2a9bf3d0
JS
7392 list_add_tail(&piocb->dlist, &abort_list);
7393 }
0976e1a6
JS
7394 if (phba->sli_rev == LPFC_SLI_REV4)
7395 spin_unlock(&pring->ring_lock);
2a9bf3d0
JS
7396 spin_unlock_irq(&phba->hbalock);
7397
7398 list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) {
15026c9e 7399 cmd = &piocb->iocb;
e8b62011 7400 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
2a9bf3d0
JS
7401 "0127 ELS timeout Data: x%x x%x x%x "
7402 "x%x\n", els_command,
7403 remote_ID, cmd->ulpCommand, cmd->ulpIoTag);
7404 spin_lock_irq(&phba->hbalock);
7405 list_del_init(&piocb->dlist);
07951076 7406 lpfc_sli_issue_abort_iotag(phba, pring, piocb);
2a9bf3d0 7407 spin_unlock_irq(&phba->hbalock);
dea3101e 7408 }
5a0e326d 7409
895427bd 7410 if (!list_empty(&pring->txcmplq))
06918ac5
JS
7411 if (!(phba->pport->load_flag & FC_UNLOADING))
7412 mod_timer(&vport->els_tmofunc,
7413 jiffies + msecs_to_jiffies(1000 * timeout));
dea3101e
JB
7414}
7415
e59058c4 7416/**
3621a710 7417 * lpfc_els_flush_cmd - Clean up the outstanding els commands to a vport
e59058c4
JS
7418 * @vport: pointer to a host virtual N_Port data structure.
7419 *
7420 * This routine is used to clean up all the outstanding ELS commands on a
7421 * @vport. It first aborts the @vport by invoking lpfc_fabric_abort_vport()
7422 * routine. After that, it walks the ELS transmit queue to remove all the
7423 * IOCBs with the @vport other than the QUE_RING and ABORT/CLOSE IOCBs. For
7424 * the IOCBs with a non-NULL completion callback function, the callback
7425 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and
7426 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs with a NULL completion
7427 * callback function, the IOCB will simply be released. Finally, it walks
7428 * the ELS transmit completion queue to issue an abort IOCB to any transmit
7429 * completion queue IOCB that is associated with the @vport and is not
7430 * an IOCB from libdfc (i.e., the management plane IOCBs that are not
7431 * part of the discovery state machine) out to HBA by invoking the
7432 * lpfc_sli_issue_abort_iotag() routine. Note that this function issues the
7433 * abort IOCB to any transmit completion queueed IOCB, it does not guarantee
7434 * the IOCBs are aborted when this function returns.
7435 **/
dea3101e 7436void
2e0fef85 7437lpfc_els_flush_cmd(struct lpfc_vport *vport)
dea3101e 7438{
0976e1a6 7439 LIST_HEAD(abort_list);
2e0fef85 7440 struct lpfc_hba *phba = vport->phba;
895427bd 7441 struct lpfc_sli_ring *pring;
dea3101e
JB
7442 struct lpfc_iocbq *tmp_iocb, *piocb;
7443 IOCB_t *cmd = NULL;
92d7f7b0
JS
7444
7445 lpfc_fabric_abort_vport(vport);
0976e1a6
JS
7446 /*
7447 * For SLI3, only the hbalock is required. But SLI4 needs to coordinate
7448 * with the ring insert operation. Because lpfc_sli_issue_abort_iotag
7449 * ultimately grabs the ring_lock, the driver must splice the list into
7450 * a working list and release the locks before calling the abort.
7451 */
7452 spin_lock_irq(&phba->hbalock);
895427bd 7453 pring = lpfc_phba_elsring(phba);
53cf29d3
GP
7454
7455 /* Bail out if we've no ELS wq, like in PCI error recovery case. */
7456 if (unlikely(!pring)) {
7457 spin_unlock_irq(&phba->hbalock);
7458 return;
7459 }
7460
0976e1a6
JS
7461 if (phba->sli_rev == LPFC_SLI_REV4)
7462 spin_lock(&pring->ring_lock);
7463
7464 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) {
7465 if (piocb->iocb_flag & LPFC_IO_LIBDFC)
7466 continue;
7467
7468 if (piocb->vport != vport)
7469 continue;
7470 list_add_tail(&piocb->dlist, &abort_list);
7471 }
7472 if (phba->sli_rev == LPFC_SLI_REV4)
7473 spin_unlock(&pring->ring_lock);
7474 spin_unlock_irq(&phba->hbalock);
7475 /* Abort each iocb on the aborted list and remove the dlist links. */
7476 list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) {
7477 spin_lock_irq(&phba->hbalock);
7478 list_del_init(&piocb->dlist);
7479 lpfc_sli_issue_abort_iotag(phba, pring, piocb);
7480 spin_unlock_irq(&phba->hbalock);
7481 }
7482 if (!list_empty(&abort_list))
7483 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7484 "3387 abort list for txq not empty\n");
7485 INIT_LIST_HEAD(&abort_list);
dea3101e 7486
2e0fef85 7487 spin_lock_irq(&phba->hbalock);
0976e1a6
JS
7488 if (phba->sli_rev == LPFC_SLI_REV4)
7489 spin_lock(&pring->ring_lock);
7490
dea3101e
JB
7491 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) {
7492 cmd = &piocb->iocb;
7493
7494 if (piocb->iocb_flag & LPFC_IO_LIBDFC) {
7495 continue;
7496 }
7497
7498 /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */
329f9bc7
JS
7499 if (cmd->ulpCommand == CMD_QUE_RING_BUF_CN ||
7500 cmd->ulpCommand == CMD_QUE_RING_BUF64_CN ||
7501 cmd->ulpCommand == CMD_CLOSE_XRI_CN ||
7502 cmd->ulpCommand == CMD_ABORT_XRI_CN)
dea3101e 7503 continue;
dea3101e 7504
2e0fef85
JS
7505 if (piocb->vport != vport)
7506 continue;
7507
0976e1a6
JS
7508 list_del_init(&piocb->list);
7509 list_add_tail(&piocb->list, &abort_list);
dea3101e 7510 }
0976e1a6
JS
7511 if (phba->sli_rev == LPFC_SLI_REV4)
7512 spin_unlock(&pring->ring_lock);
2e0fef85 7513 spin_unlock_irq(&phba->hbalock);
2534ba75 7514
a257bf90 7515 /* Cancell all the IOCBs from the completions list */
0976e1a6
JS
7516 lpfc_sli_cancel_iocbs(phba, &abort_list,
7517 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
2534ba75 7518
dea3101e
JB
7519 return;
7520}
7521
e59058c4 7522/**
3621a710 7523 * lpfc_els_flush_all_cmd - Clean up all the outstanding els commands to a HBA
e59058c4
JS
7524 * @phba: pointer to lpfc hba data structure.
7525 *
7526 * This routine is used to clean up all the outstanding ELS commands on a
7527 * @phba. It first aborts the @phba by invoking the lpfc_fabric_abort_hba()
7528 * routine. After that, it walks the ELS transmit queue to remove all the
7529 * IOCBs to the @phba other than the QUE_RING and ABORT/CLOSE IOCBs. For
7530 * the IOCBs with the completion callback function associated, the callback
7531 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and
7532 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs without the completion
7533 * callback function associated, the IOCB will simply be released. Finally,
7534 * it walks the ELS transmit completion queue to issue an abort IOCB to any
7535 * transmit completion queue IOCB that is not an IOCB from libdfc (i.e., the
7536 * management plane IOCBs that are not part of the discovery state machine)
7537 * out to HBA by invoking the lpfc_sli_issue_abort_iotag() routine.
7538 **/
549e55cd
JS
7539void
7540lpfc_els_flush_all_cmd(struct lpfc_hba *phba)
7541{
0976e1a6
JS
7542 struct lpfc_vport *vport;
7543 list_for_each_entry(vport, &phba->port_list, listentry)
7544 lpfc_els_flush_cmd(vport);
a257bf90 7545
549e55cd
JS
7546 return;
7547}
7548
ea2151b4 7549/**
3621a710 7550 * lpfc_send_els_failure_event - Posts an ELS command failure event
ea2151b4
JS
7551 * @phba: Pointer to hba context object.
7552 * @cmdiocbp: Pointer to command iocb which reported error.
7553 * @rspiocbp: Pointer to response iocb which reported error.
7554 *
7555 * This function sends an event when there is an ELS command
7556 * failure.
7557 **/
7558void
7559lpfc_send_els_failure_event(struct lpfc_hba *phba,
7560 struct lpfc_iocbq *cmdiocbp,
7561 struct lpfc_iocbq *rspiocbp)
7562{
7563 struct lpfc_vport *vport = cmdiocbp->vport;
7564 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7565 struct lpfc_lsrjt_event lsrjt_event;
7566 struct lpfc_fabric_event_header fabric_event;
7567 struct ls_rjt stat;
7568 struct lpfc_nodelist *ndlp;
7569 uint32_t *pcmd;
7570
7571 ndlp = cmdiocbp->context1;
7572 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
7573 return;
7574
7575 if (rspiocbp->iocb.ulpStatus == IOSTAT_LS_RJT) {
7576 lsrjt_event.header.event_type = FC_REG_ELS_EVENT;
7577 lsrjt_event.header.subcategory = LPFC_EVENT_LSRJT_RCV;
7578 memcpy(lsrjt_event.header.wwpn, &ndlp->nlp_portname,
7579 sizeof(struct lpfc_name));
7580 memcpy(lsrjt_event.header.wwnn, &ndlp->nlp_nodename,
7581 sizeof(struct lpfc_name));
7582 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
7583 cmdiocbp->context2)->virt);
49198b37 7584 lsrjt_event.command = (pcmd != NULL) ? *pcmd : 0;
ea2151b4
JS
7585 stat.un.lsRjtError = be32_to_cpu(rspiocbp->iocb.un.ulpWord[4]);
7586 lsrjt_event.reason_code = stat.un.b.lsRjtRsnCode;
7587 lsrjt_event.explanation = stat.un.b.lsRjtRsnCodeExp;
7588 fc_host_post_vendor_event(shost,
7589 fc_get_event_number(),
7590 sizeof(lsrjt_event),
7591 (char *)&lsrjt_event,
ddcc50f0 7592 LPFC_NL_VENDOR_ID);
ea2151b4
JS
7593 return;
7594 }
7595 if ((rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY) ||
7596 (rspiocbp->iocb.ulpStatus == IOSTAT_FABRIC_BSY)) {
7597 fabric_event.event_type = FC_REG_FABRIC_EVENT;
7598 if (rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY)
7599 fabric_event.subcategory = LPFC_EVENT_PORT_BUSY;
7600 else
7601 fabric_event.subcategory = LPFC_EVENT_FABRIC_BUSY;
7602 memcpy(fabric_event.wwpn, &ndlp->nlp_portname,
7603 sizeof(struct lpfc_name));
7604 memcpy(fabric_event.wwnn, &ndlp->nlp_nodename,
7605 sizeof(struct lpfc_name));
7606 fc_host_post_vendor_event(shost,
7607 fc_get_event_number(),
7608 sizeof(fabric_event),
7609 (char *)&fabric_event,
ddcc50f0 7610 LPFC_NL_VENDOR_ID);
ea2151b4
JS
7611 return;
7612 }
7613
7614}
7615
7616/**
3621a710 7617 * lpfc_send_els_event - Posts unsolicited els event
ea2151b4
JS
7618 * @vport: Pointer to vport object.
7619 * @ndlp: Pointer FC node object.
7620 * @cmd: ELS command code.
7621 *
7622 * This function posts an event when there is an incoming
7623 * unsolicited ELS command.
7624 **/
7625static void
7626lpfc_send_els_event(struct lpfc_vport *vport,
7627 struct lpfc_nodelist *ndlp,
ddcc50f0 7628 uint32_t *payload)
ea2151b4 7629{
ddcc50f0
JS
7630 struct lpfc_els_event_header *els_data = NULL;
7631 struct lpfc_logo_event *logo_data = NULL;
ea2151b4
JS
7632 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7633
ddcc50f0
JS
7634 if (*payload == ELS_CMD_LOGO) {
7635 logo_data = kmalloc(sizeof(struct lpfc_logo_event), GFP_KERNEL);
7636 if (!logo_data) {
7637 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7638 "0148 Failed to allocate memory "
7639 "for LOGO event\n");
7640 return;
7641 }
7642 els_data = &logo_data->header;
7643 } else {
7644 els_data = kmalloc(sizeof(struct lpfc_els_event_header),
7645 GFP_KERNEL);
7646 if (!els_data) {
7647 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7648 "0149 Failed to allocate memory "
7649 "for ELS event\n");
7650 return;
7651 }
7652 }
7653 els_data->event_type = FC_REG_ELS_EVENT;
7654 switch (*payload) {
ea2151b4 7655 case ELS_CMD_PLOGI:
ddcc50f0 7656 els_data->subcategory = LPFC_EVENT_PLOGI_RCV;
ea2151b4
JS
7657 break;
7658 case ELS_CMD_PRLO:
ddcc50f0 7659 els_data->subcategory = LPFC_EVENT_PRLO_RCV;
ea2151b4
JS
7660 break;
7661 case ELS_CMD_ADISC:
ddcc50f0
JS
7662 els_data->subcategory = LPFC_EVENT_ADISC_RCV;
7663 break;
7664 case ELS_CMD_LOGO:
7665 els_data->subcategory = LPFC_EVENT_LOGO_RCV;
7666 /* Copy the WWPN in the LOGO payload */
7667 memcpy(logo_data->logo_wwpn, &payload[2],
7668 sizeof(struct lpfc_name));
ea2151b4
JS
7669 break;
7670 default:
e916141c 7671 kfree(els_data);
ea2151b4
JS
7672 return;
7673 }
ddcc50f0
JS
7674 memcpy(els_data->wwpn, &ndlp->nlp_portname, sizeof(struct lpfc_name));
7675 memcpy(els_data->wwnn, &ndlp->nlp_nodename, sizeof(struct lpfc_name));
7676 if (*payload == ELS_CMD_LOGO) {
7677 fc_host_post_vendor_event(shost,
7678 fc_get_event_number(),
7679 sizeof(struct lpfc_logo_event),
7680 (char *)logo_data,
7681 LPFC_NL_VENDOR_ID);
7682 kfree(logo_data);
7683 } else {
7684 fc_host_post_vendor_event(shost,
7685 fc_get_event_number(),
7686 sizeof(struct lpfc_els_event_header),
7687 (char *)els_data,
7688 LPFC_NL_VENDOR_ID);
7689 kfree(els_data);
7690 }
ea2151b4
JS
7691
7692 return;
7693}
7694
7695
e59058c4 7696/**
3621a710 7697 * lpfc_els_unsol_buffer - Process an unsolicited event data buffer
e59058c4
JS
7698 * @phba: pointer to lpfc hba data structure.
7699 * @pring: pointer to a SLI ring.
7700 * @vport: pointer to a host virtual N_Port data structure.
7701 * @elsiocb: pointer to lpfc els command iocb data structure.
7702 *
7703 * This routine is used for processing the IOCB associated with a unsolicited
7704 * event. It first determines whether there is an existing ndlp that matches
7705 * the DID from the unsolicited IOCB. If not, it will create a new one with
7706 * the DID from the unsolicited IOCB. The ELS command from the unsolicited
7707 * IOCB is then used to invoke the proper routine and to set up proper state
7708 * of the discovery state machine.
7709 **/
ed957684
JS
7710static void
7711lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
92d7f7b0 7712 struct lpfc_vport *vport, struct lpfc_iocbq *elsiocb)
dea3101e 7713{
87af33fe 7714 struct Scsi_Host *shost;
dea3101e 7715 struct lpfc_nodelist *ndlp;
dea3101e 7716 struct ls_rjt stat;
92d7f7b0 7717 uint32_t *payload;
303f2f9c
JS
7718 uint32_t cmd, did, newnode;
7719 uint8_t rjt_exp, rjt_err = 0;
ed957684 7720 IOCB_t *icmd = &elsiocb->iocb;
dea3101e 7721
e47c9093 7722 if (!vport || !(elsiocb->context2))
dea3101e 7723 goto dropit;
2e0fef85 7724
dea3101e 7725 newnode = 0;
92d7f7b0
JS
7726 payload = ((struct lpfc_dmabuf *)elsiocb->context2)->virt;
7727 cmd = *payload;
ed957684 7728 if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) == 0)
495a714c 7729 lpfc_post_buffer(phba, pring, 1);
dea3101e 7730
858c9f6c
JS
7731 did = icmd->un.rcvels.remoteID;
7732 if (icmd->ulpStatus) {
7733 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7734 "RCV Unsol ELS: status:x%x/x%x did:x%x",
7735 icmd->ulpStatus, icmd->un.ulpWord[4], did);
dea3101e 7736 goto dropit;
858c9f6c 7737 }
dea3101e
JB
7738
7739 /* Check to see if link went down during discovery */
ed957684 7740 if (lpfc_els_chk_latt(vport))
dea3101e 7741 goto dropit;
dea3101e 7742
c868595d 7743 /* Ignore traffic received during vport shutdown. */
92d7f7b0
JS
7744 if (vport->load_flag & FC_UNLOADING)
7745 goto dropit;
7746
92494144
JS
7747 /* If NPort discovery is delayed drop incoming ELS */
7748 if ((vport->fc_flag & FC_DISC_DELAYED) &&
7749 (cmd != ELS_CMD_PLOGI))
7750 goto dropit;
7751
2e0fef85 7752 ndlp = lpfc_findnode_did(vport, did);
c9f8735b 7753 if (!ndlp) {
dea3101e 7754 /* Cannot find existing Fabric ndlp, so allocate a new one */
9d3d340d 7755 ndlp = lpfc_nlp_init(vport, did);
ed957684 7756 if (!ndlp)
dea3101e 7757 goto dropit;
98c9ea5c 7758 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
dea3101e 7759 newnode = 1;
e47c9093 7760 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
dea3101e 7761 ndlp->nlp_type |= NLP_FABRIC;
58da1ffb
JS
7762 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
7763 ndlp = lpfc_enable_node(vport, ndlp,
7764 NLP_STE_UNUSED_NODE);
7765 if (!ndlp)
7766 goto dropit;
7767 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
7768 newnode = 1;
7769 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
7770 ndlp->nlp_type |= NLP_FABRIC;
7771 } else if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
7772 /* This is similar to the new node path */
7773 ndlp = lpfc_nlp_get(ndlp);
7774 if (!ndlp)
7775 goto dropit;
7776 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
7777 newnode = 1;
87af33fe 7778 }
dea3101e
JB
7779
7780 phba->fc_stat.elsRcvFrame++;
e47c9093 7781
12838e74
JS
7782 /*
7783 * Do not process any unsolicited ELS commands
7784 * if the ndlp is in DEV_LOSS
7785 */
466e840b
JS
7786 shost = lpfc_shost_from_vport(vport);
7787 spin_lock_irq(shost->host_lock);
7788 if (ndlp->nlp_flag & NLP_IN_DEV_LOSS) {
7789 spin_unlock_irq(shost->host_lock);
12838e74 7790 goto dropit;
466e840b
JS
7791 }
7792 spin_unlock_irq(shost->host_lock);
12838e74 7793
329f9bc7 7794 elsiocb->context1 = lpfc_nlp_get(ndlp);
2e0fef85 7795 elsiocb->vport = vport;
dea3101e
JB
7796
7797 if ((cmd & ELS_CMD_MASK) == ELS_CMD_RSCN) {
7798 cmd &= ELS_CMD_MASK;
7799 }
7800 /* ELS command <elsCmd> received from NPORT <did> */
e8b62011
JS
7801 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
7802 "0112 ELS command x%x received from NPORT x%x "
e74c03c8
JS
7803 "Data: x%x x%x x%x x%x\n",
7804 cmd, did, vport->port_state, vport->fc_flag,
7805 vport->fc_myDID, vport->fc_prevDID);
eec3d312
JS
7806
7807 /* reject till our FLOGI completes */
7808 if ((vport->port_state < LPFC_FABRIC_CFG_LINK) &&
d6de08cc 7809 (cmd != ELS_CMD_FLOGI)) {
401304cc 7810 rjt_err = LSRJT_LOGICAL_BSY;
eec3d312
JS
7811 rjt_exp = LSEXP_NOTHING_MORE;
7812 goto lsrjt;
7813 }
7814
dea3101e
JB
7815 switch (cmd) {
7816 case ELS_CMD_PLOGI:
858c9f6c
JS
7817 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7818 "RCV PLOGI: did:x%x/ste:x%x flg:x%x",
7819 did, vport->port_state, ndlp->nlp_flag);
7820
dea3101e 7821 phba->fc_stat.elsRcvPLOGI++;
858c9f6c 7822 ndlp = lpfc_plogi_confirm_nport(phba, payload, ndlp);
e74c03c8
JS
7823 if (phba->sli_rev == LPFC_SLI_REV4 &&
7824 (phba->pport->fc_flag & FC_PT2PT)) {
7825 vport->fc_prevDID = vport->fc_myDID;
7826 /* Our DID needs to be updated before registering
7827 * the vfi. This is done in lpfc_rcv_plogi but
7828 * that is called after the reg_vfi.
7829 */
7830 vport->fc_myDID = elsiocb->iocb.un.rcvels.parmRo;
7831 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
7832 "3312 Remote port assigned DID x%x "
7833 "%x\n", vport->fc_myDID,
7834 vport->fc_prevDID);
7835 }
858c9f6c 7836
ddcc50f0 7837 lpfc_send_els_event(vport, ndlp, payload);
92494144
JS
7838
7839 /* If Nport discovery is delayed, reject PLOGIs */
7840 if (vport->fc_flag & FC_DISC_DELAYED) {
7841 rjt_err = LSRJT_UNABLE_TPC;
303f2f9c 7842 rjt_exp = LSEXP_NOTHING_MORE;
92494144
JS
7843 break;
7844 }
d6de08cc 7845
858c9f6c 7846 if (vport->port_state < LPFC_DISC_AUTH) {
1b32f6aa
JS
7847 if (!(phba->pport->fc_flag & FC_PT2PT) ||
7848 (phba->pport->fc_flag & FC_PT2PT_PLOGI)) {
7849 rjt_err = LSRJT_UNABLE_TPC;
303f2f9c 7850 rjt_exp = LSEXP_NOTHING_MORE;
1b32f6aa
JS
7851 break;
7852 }
dea3101e 7853 }
87af33fe 7854
87af33fe
JS
7855 spin_lock_irq(shost->host_lock);
7856 ndlp->nlp_flag &= ~NLP_TARGET_REMOVE;
7857 spin_unlock_irq(shost->host_lock);
7858
2e0fef85
JS
7859 lpfc_disc_state_machine(vport, ndlp, elsiocb,
7860 NLP_EVT_RCV_PLOGI);
858c9f6c 7861
dea3101e
JB
7862 break;
7863 case ELS_CMD_FLOGI:
858c9f6c
JS
7864 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7865 "RCV FLOGI: did:x%x/ste:x%x flg:x%x",
7866 did, vport->port_state, ndlp->nlp_flag);
7867
dea3101e 7868 phba->fc_stat.elsRcvFLOGI++;
51ef4c26 7869 lpfc_els_rcv_flogi(vport, elsiocb, ndlp);
87af33fe 7870 if (newnode)
98c9ea5c 7871 lpfc_nlp_put(ndlp);
dea3101e
JB
7872 break;
7873 case ELS_CMD_LOGO:
858c9f6c
JS
7874 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7875 "RCV LOGO: did:x%x/ste:x%x flg:x%x",
7876 did, vport->port_state, ndlp->nlp_flag);
7877
dea3101e 7878 phba->fc_stat.elsRcvLOGO++;
ddcc50f0 7879 lpfc_send_els_event(vport, ndlp, payload);
2e0fef85 7880 if (vport->port_state < LPFC_DISC_AUTH) {
858c9f6c 7881 rjt_err = LSRJT_UNABLE_TPC;
303f2f9c 7882 rjt_exp = LSEXP_NOTHING_MORE;
dea3101e
JB
7883 break;
7884 }
2e0fef85 7885 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_LOGO);
dea3101e
JB
7886 break;
7887 case ELS_CMD_PRLO:
858c9f6c
JS
7888 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7889 "RCV PRLO: did:x%x/ste:x%x flg:x%x",
7890 did, vport->port_state, ndlp->nlp_flag);
7891
dea3101e 7892 phba->fc_stat.elsRcvPRLO++;
ddcc50f0 7893 lpfc_send_els_event(vport, ndlp, payload);
2e0fef85 7894 if (vport->port_state < LPFC_DISC_AUTH) {
858c9f6c 7895 rjt_err = LSRJT_UNABLE_TPC;
303f2f9c 7896 rjt_exp = LSEXP_NOTHING_MORE;
dea3101e
JB
7897 break;
7898 }
2e0fef85 7899 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLO);
dea3101e 7900 break;
8b017a30
JS
7901 case ELS_CMD_LCB:
7902 phba->fc_stat.elsRcvLCB++;
7903 lpfc_els_rcv_lcb(vport, elsiocb, ndlp);
7904 break;
86478875
JS
7905 case ELS_CMD_RDP:
7906 phba->fc_stat.elsRcvRDP++;
7907 lpfc_els_rcv_rdp(vport, elsiocb, ndlp);
7908 break;
dea3101e
JB
7909 case ELS_CMD_RSCN:
7910 phba->fc_stat.elsRcvRSCN++;
51ef4c26 7911 lpfc_els_rcv_rscn(vport, elsiocb, ndlp);
87af33fe 7912 if (newnode)
98c9ea5c 7913 lpfc_nlp_put(ndlp);
dea3101e
JB
7914 break;
7915 case ELS_CMD_ADISC:
858c9f6c
JS
7916 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7917 "RCV ADISC: did:x%x/ste:x%x flg:x%x",
7918 did, vport->port_state, ndlp->nlp_flag);
7919
ddcc50f0 7920 lpfc_send_els_event(vport, ndlp, payload);
dea3101e 7921 phba->fc_stat.elsRcvADISC++;
2e0fef85 7922 if (vport->port_state < LPFC_DISC_AUTH) {
858c9f6c 7923 rjt_err = LSRJT_UNABLE_TPC;
303f2f9c 7924 rjt_exp = LSEXP_NOTHING_MORE;
dea3101e
JB
7925 break;
7926 }
2e0fef85
JS
7927 lpfc_disc_state_machine(vport, ndlp, elsiocb,
7928 NLP_EVT_RCV_ADISC);
dea3101e
JB
7929 break;
7930 case ELS_CMD_PDISC:
858c9f6c
JS
7931 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7932 "RCV PDISC: did:x%x/ste:x%x flg:x%x",
7933 did, vport->port_state, ndlp->nlp_flag);
7934
dea3101e 7935 phba->fc_stat.elsRcvPDISC++;
2e0fef85 7936 if (vport->port_state < LPFC_DISC_AUTH) {
858c9f6c 7937 rjt_err = LSRJT_UNABLE_TPC;
303f2f9c 7938 rjt_exp = LSEXP_NOTHING_MORE;
dea3101e
JB
7939 break;
7940 }
2e0fef85
JS
7941 lpfc_disc_state_machine(vport, ndlp, elsiocb,
7942 NLP_EVT_RCV_PDISC);
dea3101e
JB
7943 break;
7944 case ELS_CMD_FARPR:
858c9f6c
JS
7945 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7946 "RCV FARPR: did:x%x/ste:x%x flg:x%x",
7947 did, vport->port_state, ndlp->nlp_flag);
7948
dea3101e 7949 phba->fc_stat.elsRcvFARPR++;
2e0fef85 7950 lpfc_els_rcv_farpr(vport, elsiocb, ndlp);
dea3101e
JB
7951 break;
7952 case ELS_CMD_FARP:
858c9f6c
JS
7953 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7954 "RCV FARP: did:x%x/ste:x%x flg:x%x",
7955 did, vport->port_state, ndlp->nlp_flag);
7956
dea3101e 7957 phba->fc_stat.elsRcvFARP++;
2e0fef85 7958 lpfc_els_rcv_farp(vport, elsiocb, ndlp);
dea3101e
JB
7959 break;
7960 case ELS_CMD_FAN:
858c9f6c
JS
7961 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7962 "RCV FAN: did:x%x/ste:x%x flg:x%x",
7963 did, vport->port_state, ndlp->nlp_flag);
7964
dea3101e 7965 phba->fc_stat.elsRcvFAN++;
2e0fef85 7966 lpfc_els_rcv_fan(vport, elsiocb, ndlp);
dea3101e 7967 break;
dea3101e 7968 case ELS_CMD_PRLI:
a0f2d3ef 7969 case ELS_CMD_NVMEPRLI:
858c9f6c
JS
7970 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7971 "RCV PRLI: did:x%x/ste:x%x flg:x%x",
7972 did, vport->port_state, ndlp->nlp_flag);
7973
dea3101e 7974 phba->fc_stat.elsRcvPRLI++;
a71e3cdc
DK
7975 if ((vport->port_state < LPFC_DISC_AUTH) &&
7976 (vport->fc_flag & FC_FABRIC)) {
858c9f6c 7977 rjt_err = LSRJT_UNABLE_TPC;
303f2f9c 7978 rjt_exp = LSEXP_NOTHING_MORE;
dea3101e
JB
7979 break;
7980 }
2e0fef85 7981 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLI);
dea3101e 7982 break;
7bb3b137 7983 case ELS_CMD_LIRR:
858c9f6c
JS
7984 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7985 "RCV LIRR: did:x%x/ste:x%x flg:x%x",
7986 did, vport->port_state, ndlp->nlp_flag);
7987
7bb3b137 7988 phba->fc_stat.elsRcvLIRR++;
2e0fef85 7989 lpfc_els_rcv_lirr(vport, elsiocb, ndlp);
87af33fe 7990 if (newnode)
98c9ea5c 7991 lpfc_nlp_put(ndlp);
7bb3b137 7992 break;
12265f68
JS
7993 case ELS_CMD_RLS:
7994 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7995 "RCV RLS: did:x%x/ste:x%x flg:x%x",
7996 did, vport->port_state, ndlp->nlp_flag);
7997
7998 phba->fc_stat.elsRcvRLS++;
7999 lpfc_els_rcv_rls(vport, elsiocb, ndlp);
8000 if (newnode)
8001 lpfc_nlp_put(ndlp);
8002 break;
7bb3b137 8003 case ELS_CMD_RPS:
858c9f6c
JS
8004 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8005 "RCV RPS: did:x%x/ste:x%x flg:x%x",
8006 did, vport->port_state, ndlp->nlp_flag);
8007
7bb3b137 8008 phba->fc_stat.elsRcvRPS++;
2e0fef85 8009 lpfc_els_rcv_rps(vport, elsiocb, ndlp);
87af33fe 8010 if (newnode)
98c9ea5c 8011 lpfc_nlp_put(ndlp);
7bb3b137
JW
8012 break;
8013 case ELS_CMD_RPL:
858c9f6c
JS
8014 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8015 "RCV RPL: did:x%x/ste:x%x flg:x%x",
8016 did, vport->port_state, ndlp->nlp_flag);
8017
7bb3b137 8018 phba->fc_stat.elsRcvRPL++;
2e0fef85 8019 lpfc_els_rcv_rpl(vport, elsiocb, ndlp);
87af33fe 8020 if (newnode)
98c9ea5c 8021 lpfc_nlp_put(ndlp);
7bb3b137 8022 break;
dea3101e 8023 case ELS_CMD_RNID:
858c9f6c
JS
8024 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8025 "RCV RNID: did:x%x/ste:x%x flg:x%x",
8026 did, vport->port_state, ndlp->nlp_flag);
8027
dea3101e 8028 phba->fc_stat.elsRcvRNID++;
2e0fef85 8029 lpfc_els_rcv_rnid(vport, elsiocb, ndlp);
87af33fe 8030 if (newnode)
98c9ea5c 8031 lpfc_nlp_put(ndlp);
dea3101e 8032 break;
12265f68
JS
8033 case ELS_CMD_RTV:
8034 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8035 "RCV RTV: did:x%x/ste:x%x flg:x%x",
8036 did, vport->port_state, ndlp->nlp_flag);
8037 phba->fc_stat.elsRcvRTV++;
8038 lpfc_els_rcv_rtv(vport, elsiocb, ndlp);
8039 if (newnode)
8040 lpfc_nlp_put(ndlp);
8041 break;
5ffc266e
JS
8042 case ELS_CMD_RRQ:
8043 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8044 "RCV RRQ: did:x%x/ste:x%x flg:x%x",
8045 did, vport->port_state, ndlp->nlp_flag);
8046
8047 phba->fc_stat.elsRcvRRQ++;
8048 lpfc_els_rcv_rrq(vport, elsiocb, ndlp);
8049 if (newnode)
8050 lpfc_nlp_put(ndlp);
8051 break;
12265f68
JS
8052 case ELS_CMD_ECHO:
8053 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8054 "RCV ECHO: did:x%x/ste:x%x flg:x%x",
8055 did, vport->port_state, ndlp->nlp_flag);
8056
8057 phba->fc_stat.elsRcvECHO++;
8058 lpfc_els_rcv_echo(vport, elsiocb, ndlp);
8059 if (newnode)
8060 lpfc_nlp_put(ndlp);
8061 break;
303f2f9c
JS
8062 case ELS_CMD_REC:
8063 /* receive this due to exchange closed */
8064 rjt_err = LSRJT_UNABLE_TPC;
8065 rjt_exp = LSEXP_INVALID_OX_RX;
8066 break;
dea3101e 8067 default:
858c9f6c
JS
8068 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8069 "RCV ELS cmd: cmd:x%x did:x%x/ste:x%x",
8070 cmd, did, vport->port_state);
8071
dea3101e 8072 /* Unsupported ELS command, reject */
63e801ce 8073 rjt_err = LSRJT_CMD_UNSUPPORTED;
303f2f9c 8074 rjt_exp = LSEXP_NOTHING_MORE;
dea3101e
JB
8075
8076 /* Unknown ELS command <elsCmd> received from NPORT <did> */
e8b62011
JS
8077 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
8078 "0115 Unknown ELS command x%x "
8079 "received from NPORT x%x\n", cmd, did);
87af33fe 8080 if (newnode)
98c9ea5c 8081 lpfc_nlp_put(ndlp);
dea3101e
JB
8082 break;
8083 }
8084
eec3d312 8085lsrjt:
dea3101e
JB
8086 /* check if need to LS_RJT received ELS cmd */
8087 if (rjt_err) {
92d7f7b0 8088 memset(&stat, 0, sizeof(stat));
858c9f6c 8089 stat.un.b.lsRjtRsnCode = rjt_err;
303f2f9c 8090 stat.un.b.lsRjtRsnCodeExp = rjt_exp;
858c9f6c
JS
8091 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, elsiocb, ndlp,
8092 NULL);
dea3101e
JB
8093 }
8094
d7c255b2
JS
8095 lpfc_nlp_put(elsiocb->context1);
8096 elsiocb->context1 = NULL;
ed957684
JS
8097 return;
8098
8099dropit:
98c9ea5c 8100 if (vport && !(vport->load_flag & FC_UNLOADING))
6fb120a7
JS
8101 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
8102 "0111 Dropping received ELS cmd "
ed957684 8103 "Data: x%x x%x x%x\n",
6fb120a7 8104 icmd->ulpStatus, icmd->un.ulpWord[4], icmd->ulpTimeout);
ed957684
JS
8105 phba->fc_stat.elsRcvDrop++;
8106}
8107
e59058c4 8108/**
3621a710 8109 * lpfc_els_unsol_event - Process an unsolicited event from an els sli ring
e59058c4
JS
8110 * @phba: pointer to lpfc hba data structure.
8111 * @pring: pointer to a SLI ring.
8112 * @elsiocb: pointer to lpfc els iocb data structure.
8113 *
8114 * This routine is used to process an unsolicited event received from a SLI
8115 * (Service Level Interface) ring. The actual processing of the data buffer
8116 * associated with the unsolicited event is done by invoking the routine
8117 * lpfc_els_unsol_buffer() after properly set up the iocb buffer from the
8118 * SLI ring on which the unsolicited event was received.
8119 **/
ed957684
JS
8120void
8121lpfc_els_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
8122 struct lpfc_iocbq *elsiocb)
8123{
8124 struct lpfc_vport *vport = phba->pport;
ed957684 8125 IOCB_t *icmd = &elsiocb->iocb;
ed957684 8126 dma_addr_t paddr;
92d7f7b0
JS
8127 struct lpfc_dmabuf *bdeBuf1 = elsiocb->context2;
8128 struct lpfc_dmabuf *bdeBuf2 = elsiocb->context3;
8129
d7c255b2 8130 elsiocb->context1 = NULL;
92d7f7b0
JS
8131 elsiocb->context2 = NULL;
8132 elsiocb->context3 = NULL;
ed957684 8133
92d7f7b0
JS
8134 if (icmd->ulpStatus == IOSTAT_NEED_BUFFER) {
8135 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ);
8136 } else if (icmd->ulpStatus == IOSTAT_LOCAL_REJECT &&
e3d2b802
JS
8137 (icmd->un.ulpWord[4] & IOERR_PARAM_MASK) ==
8138 IOERR_RCV_BUFFER_WAITING) {
ed957684
JS
8139 phba->fc_stat.NoRcvBuf++;
8140 /* Not enough posted buffers; Try posting more buffers */
92d7f7b0 8141 if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED))
495a714c 8142 lpfc_post_buffer(phba, pring, 0);
ed957684
JS
8143 return;
8144 }
8145
92d7f7b0
JS
8146 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
8147 (icmd->ulpCommand == CMD_IOCB_RCV_ELS64_CX ||
8148 icmd->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
8149 if (icmd->unsli3.rcvsli3.vpi == 0xffff)
8150 vport = phba->pport;
6fb120a7
JS
8151 else
8152 vport = lpfc_find_vport_by_vpid(phba,
6d368e53 8153 icmd->unsli3.rcvsli3.vpi);
92d7f7b0 8154 }
6d368e53 8155
7f5f3d0d
JS
8156 /* If there are no BDEs associated
8157 * with this IOCB, there is nothing to do.
8158 */
ed957684
JS
8159 if (icmd->ulpBdeCount == 0)
8160 return;
8161
7f5f3d0d
JS
8162 /* type of ELS cmd is first 32bit word
8163 * in packet
8164 */
ed957684 8165 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
92d7f7b0 8166 elsiocb->context2 = bdeBuf1;
ed957684
JS
8167 } else {
8168 paddr = getPaddr(icmd->un.cont64[0].addrHigh,
8169 icmd->un.cont64[0].addrLow);
92d7f7b0
JS
8170 elsiocb->context2 = lpfc_sli_ringpostbuf_get(phba, pring,
8171 paddr);
ed957684
JS
8172 }
8173
92d7f7b0
JS
8174 lpfc_els_unsol_buffer(phba, pring, vport, elsiocb);
8175 /*
8176 * The different unsolicited event handlers would tell us
8177 * if they are done with "mp" by setting context2 to NULL.
8178 */
dea3101e 8179 if (elsiocb->context2) {
92d7f7b0
JS
8180 lpfc_in_buf_free(phba, (struct lpfc_dmabuf *)elsiocb->context2);
8181 elsiocb->context2 = NULL;
dea3101e 8182 }
ed957684
JS
8183
8184 /* RCV_ELS64_CX provide for 2 BDEs - process 2nd if included */
92d7f7b0 8185 if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) &&
ed957684 8186 icmd->ulpBdeCount == 2) {
92d7f7b0
JS
8187 elsiocb->context2 = bdeBuf2;
8188 lpfc_els_unsol_buffer(phba, pring, vport, elsiocb);
ed957684
JS
8189 /* free mp if we are done with it */
8190 if (elsiocb->context2) {
92d7f7b0
JS
8191 lpfc_in_buf_free(phba, elsiocb->context2);
8192 elsiocb->context2 = NULL;
8193 }
8194 }
8195}
8196
bd4b3e5c 8197static void
4258e98e
JS
8198lpfc_start_fdmi(struct lpfc_vport *vport)
8199{
4258e98e
JS
8200 struct lpfc_nodelist *ndlp;
8201
8202 /* If this is the first time, allocate an ndlp and initialize
8203 * it. Otherwise, make sure the node is enabled and then do the
8204 * login.
8205 */
8206 ndlp = lpfc_findnode_did(vport, FDMI_DID);
8207 if (!ndlp) {
9d3d340d 8208 ndlp = lpfc_nlp_init(vport, FDMI_DID);
4258e98e 8209 if (ndlp) {
4258e98e
JS
8210 ndlp->nlp_type |= NLP_FABRIC;
8211 } else {
8212 return;
8213 }
8214 }
8215 if (!NLP_CHK_NODE_ACT(ndlp))
8216 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE);
8217
8218 if (ndlp) {
8219 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
8220 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
8221 }
8222}
8223
e59058c4 8224/**
3621a710 8225 * lpfc_do_scr_ns_plogi - Issue a plogi to the name server for scr
e59058c4
JS
8226 * @phba: pointer to lpfc hba data structure.
8227 * @vport: pointer to a virtual N_Port data structure.
8228 *
8229 * This routine issues a Port Login (PLOGI) to the Name Server with
8230 * State Change Request (SCR) for a @vport. This routine will create an
8231 * ndlp for the Name Server associated to the @vport if such node does
8232 * not already exist. The PLOGI to Name Server is issued by invoking the
8233 * lpfc_issue_els_plogi() routine. If Fabric-Device Management Interface
8234 * (FDMI) is configured to the @vport, a FDMI node will be created and
8235 * the PLOGI to FDMI is issued by invoking lpfc_issue_els_plogi() routine.
8236 **/
92d7f7b0
JS
8237void
8238lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport)
8239{
4258e98e 8240 struct lpfc_nodelist *ndlp;
92494144
JS
8241 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8242
8243 /*
8244 * If lpfc_delay_discovery parameter is set and the clean address
8245 * bit is cleared and fc fabric parameters chenged, delay FC NPort
8246 * discovery.
8247 */
8248 spin_lock_irq(shost->host_lock);
8249 if (vport->fc_flag & FC_DISC_DELAYED) {
8250 spin_unlock_irq(shost->host_lock);
18775708
JS
8251 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
8252 "3334 Delay fc port discovery for %d seconds\n",
8253 phba->fc_ratov);
92494144 8254 mod_timer(&vport->delayed_disc_tmo,
256ec0d0 8255 jiffies + msecs_to_jiffies(1000 * phba->fc_ratov));
92494144
JS
8256 return;
8257 }
8258 spin_unlock_irq(shost->host_lock);
92d7f7b0
JS
8259
8260 ndlp = lpfc_findnode_did(vport, NameServer_DID);
8261 if (!ndlp) {
9d3d340d 8262 ndlp = lpfc_nlp_init(vport, NameServer_DID);
92d7f7b0 8263 if (!ndlp) {
76a95d75 8264 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
92d7f7b0
JS
8265 lpfc_disc_start(vport);
8266 return;
8267 }
8268 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
e8b62011
JS
8269 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
8270 "0251 NameServer login: no memory\n");
92d7f7b0
JS
8271 return;
8272 }
e47c9093
JS
8273 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
8274 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
8275 if (!ndlp) {
76a95d75 8276 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
e47c9093
JS
8277 lpfc_disc_start(vport);
8278 return;
8279 }
8280 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8281 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
8282 "0348 NameServer login: node freed\n");
8283 return;
8284 }
92d7f7b0 8285 }
58da1ffb 8286 ndlp->nlp_type |= NLP_FABRIC;
92d7f7b0
JS
8287
8288 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
8289
8290 if (lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0)) {
8291 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
e8b62011
JS
8292 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
8293 "0252 Cannot issue NameServer login\n");
92d7f7b0
JS
8294 return;
8295 }
8296
8663cbbe
JS
8297 if ((phba->cfg_enable_SmartSAN ||
8298 (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) &&
8299 (vport->load_flag & FC_ALLOW_FDMI))
4258e98e 8300 lpfc_start_fdmi(vport);
92d7f7b0
JS
8301}
8302
e59058c4 8303/**
3621a710 8304 * lpfc_cmpl_reg_new_vport - Completion callback function to register new vport
e59058c4
JS
8305 * @phba: pointer to lpfc hba data structure.
8306 * @pmb: pointer to the driver internal queue element for mailbox command.
8307 *
8308 * This routine is the completion callback function to register new vport
8309 * mailbox command. If the new vport mailbox command completes successfully,
8310 * the fabric registration login shall be performed on physical port (the
8311 * new vport created is actually a physical port, with VPI 0) or the port
8312 * login to Name Server for State Change Request (SCR) will be performed
8313 * on virtual port (real virtual port, with VPI greater than 0).
8314 **/
92d7f7b0
JS
8315static void
8316lpfc_cmpl_reg_new_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
8317{
8318 struct lpfc_vport *vport = pmb->vport;
8319 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8320 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
04c68496 8321 MAILBOX_t *mb = &pmb->u.mb;
695a814e 8322 int rc;
92d7f7b0 8323
09372820 8324 spin_lock_irq(shost->host_lock);
92d7f7b0 8325 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
09372820 8326 spin_unlock_irq(shost->host_lock);
92d7f7b0
JS
8327
8328 if (mb->mbxStatus) {
e8b62011 8329 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
38b92ef8
JS
8330 "0915 Register VPI failed : Status: x%x"
8331 " upd bit: x%x \n", mb->mbxStatus,
8332 mb->un.varRegVpi.upd);
8333 if (phba->sli_rev == LPFC_SLI_REV4 &&
8334 mb->un.varRegVpi.upd)
8335 goto mbox_err_exit ;
92d7f7b0
JS
8336
8337 switch (mb->mbxStatus) {
8338 case 0x11: /* unsupported feature */
8339 case 0x9603: /* max_vpi exceeded */
7f5f3d0d 8340 case 0x9602: /* Link event since CLEAR_LA */
92d7f7b0
JS
8341 /* giving up on vport registration */
8342 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8343 spin_lock_irq(shost->host_lock);
8344 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
8345 spin_unlock_irq(shost->host_lock);
8346 lpfc_can_disctmo(vport);
8347 break;
695a814e
JS
8348 /* If reg_vpi fail with invalid VPI status, re-init VPI */
8349 case 0x20:
8350 spin_lock_irq(shost->host_lock);
8351 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
8352 spin_unlock_irq(shost->host_lock);
8353 lpfc_init_vpi(phba, pmb, vport->vpi);
8354 pmb->vport = vport;
8355 pmb->mbox_cmpl = lpfc_init_vpi_cmpl;
8356 rc = lpfc_sli_issue_mbox(phba, pmb,
8357 MBX_NOWAIT);
8358 if (rc == MBX_NOT_FINISHED) {
8359 lpfc_printf_vlog(vport,
8360 KERN_ERR, LOG_MBOX,
8361 "2732 Failed to issue INIT_VPI"
8362 " mailbox command\n");
8363 } else {
8364 lpfc_nlp_put(ndlp);
8365 return;
8366 }
8367
92d7f7b0
JS
8368 default:
8369 /* Try to recover from this error */
5af5eee7
JS
8370 if (phba->sli_rev == LPFC_SLI_REV4)
8371 lpfc_sli4_unreg_all_rpis(vport);
92d7f7b0 8372 lpfc_mbx_unreg_vpi(vport);
09372820 8373 spin_lock_irq(shost->host_lock);
92d7f7b0 8374 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
09372820 8375 spin_unlock_irq(shost->host_lock);
5d181531
JS
8376 if (mb->mbxStatus == MBX_NOT_FINISHED)
8377 break;
8378 if ((vport->port_type == LPFC_PHYSICAL_PORT) &&
8379 !(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) {
8380 if (phba->sli_rev == LPFC_SLI_REV4)
8381 lpfc_issue_init_vfi(vport);
8382 else
8383 lpfc_initial_flogi(vport);
8384 } else {
7f5f3d0d 8385 lpfc_initial_fdisc(vport);
5d181531 8386 }
92d7f7b0
JS
8387 break;
8388 }
92d7f7b0 8389 } else {
695a814e 8390 spin_lock_irq(shost->host_lock);
1987807d 8391 vport->vpi_state |= LPFC_VPI_REGISTERED;
695a814e
JS
8392 spin_unlock_irq(shost->host_lock);
8393 if (vport == phba->pport) {
6fb120a7
JS
8394 if (phba->sli_rev < LPFC_SLI_REV4)
8395 lpfc_issue_fabric_reglogin(vport);
695a814e 8396 else {
fc2b989b
JS
8397 /*
8398 * If the physical port is instantiated using
8399 * FDISC, do not start vport discovery.
8400 */
8401 if (vport->port_state != LPFC_FDISC)
8402 lpfc_start_fdiscs(phba);
695a814e
JS
8403 lpfc_do_scr_ns_plogi(phba, vport);
8404 }
8405 } else
92d7f7b0
JS
8406 lpfc_do_scr_ns_plogi(phba, vport);
8407 }
38b92ef8 8408mbox_err_exit:
fa4066b6
JS
8409 /* Now, we decrement the ndlp reference count held for this
8410 * callback function
8411 */
8412 lpfc_nlp_put(ndlp);
8413
92d7f7b0
JS
8414 mempool_free(pmb, phba->mbox_mem_pool);
8415 return;
8416}
8417
e59058c4 8418/**
3621a710 8419 * lpfc_register_new_vport - Register a new vport with a HBA
e59058c4
JS
8420 * @phba: pointer to lpfc hba data structure.
8421 * @vport: pointer to a host virtual N_Port data structure.
8422 * @ndlp: pointer to a node-list data structure.
8423 *
8424 * This routine registers the @vport as a new virtual port with a HBA.
8425 * It is done through a registering vpi mailbox command.
8426 **/
695a814e 8427void
92d7f7b0
JS
8428lpfc_register_new_vport(struct lpfc_hba *phba, struct lpfc_vport *vport,
8429 struct lpfc_nodelist *ndlp)
8430{
09372820 8431 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
92d7f7b0
JS
8432 LPFC_MBOXQ_t *mbox;
8433
8434 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8435 if (mbox) {
6fb120a7 8436 lpfc_reg_vpi(vport, mbox);
92d7f7b0
JS
8437 mbox->vport = vport;
8438 mbox->context2 = lpfc_nlp_get(ndlp);
8439 mbox->mbox_cmpl = lpfc_cmpl_reg_new_vport;
0b727fea 8440 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
92d7f7b0 8441 == MBX_NOT_FINISHED) {
fa4066b6
JS
8442 /* mailbox command not success, decrement ndlp
8443 * reference count for this command
8444 */
8445 lpfc_nlp_put(ndlp);
92d7f7b0 8446 mempool_free(mbox, phba->mbox_mem_pool);
92d7f7b0 8447
e8b62011
JS
8448 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
8449 "0253 Register VPI: Can't send mbox\n");
fa4066b6 8450 goto mbox_err_exit;
92d7f7b0
JS
8451 }
8452 } else {
e8b62011
JS
8453 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
8454 "0254 Register VPI: no memory\n");
fa4066b6 8455 goto mbox_err_exit;
92d7f7b0 8456 }
fa4066b6
JS
8457 return;
8458
8459mbox_err_exit:
8460 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8461 spin_lock_irq(shost->host_lock);
8462 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
8463 spin_unlock_irq(shost->host_lock);
8464 return;
92d7f7b0
JS
8465}
8466
695a814e 8467/**
0c9ab6f5 8468 * lpfc_cancel_all_vport_retry_delay_timer - Cancel all vport retry delay timer
695a814e
JS
8469 * @phba: pointer to lpfc hba data structure.
8470 *
0c9ab6f5 8471 * This routine cancels the retry delay timers to all the vports.
695a814e
JS
8472 **/
8473void
0c9ab6f5 8474lpfc_cancel_all_vport_retry_delay_timer(struct lpfc_hba *phba)
695a814e
JS
8475{
8476 struct lpfc_vport **vports;
8477 struct lpfc_nodelist *ndlp;
695a814e 8478 uint32_t link_state;
0c9ab6f5 8479 int i;
695a814e
JS
8480
8481 /* Treat this failure as linkdown for all vports */
8482 link_state = phba->link_state;
8483 lpfc_linkdown(phba);
8484 phba->link_state = link_state;
8485
8486 vports = lpfc_create_vport_work_array(phba);
8487
8488 if (vports) {
8489 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
8490 ndlp = lpfc_findnode_did(vports[i], Fabric_DID);
8491 if (ndlp)
8492 lpfc_cancel_retry_delay_tmo(vports[i], ndlp);
8493 lpfc_els_flush_cmd(vports[i]);
8494 }
8495 lpfc_destroy_vport_work_array(phba, vports);
8496 }
0c9ab6f5
JS
8497}
8498
8499/**
8500 * lpfc_retry_pport_discovery - Start timer to retry FLOGI.
8501 * @phba: pointer to lpfc hba data structure.
8502 *
8503 * This routine abort all pending discovery commands and
8504 * start a timer to retry FLOGI for the physical port
8505 * discovery.
8506 **/
8507void
8508lpfc_retry_pport_discovery(struct lpfc_hba *phba)
8509{
8510 struct lpfc_nodelist *ndlp;
8511 struct Scsi_Host *shost;
8512
8513 /* Cancel the all vports retry delay retry timers */
8514 lpfc_cancel_all_vport_retry_delay_timer(phba);
695a814e
JS
8515
8516 /* If fabric require FLOGI, then re-instantiate physical login */
8517 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID);
8518 if (!ndlp)
8519 return;
8520
695a814e 8521 shost = lpfc_shost_from_vport(phba->pport);
256ec0d0 8522 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000));
695a814e
JS
8523 spin_lock_irq(shost->host_lock);
8524 ndlp->nlp_flag |= NLP_DELAY_TMO;
8525 spin_unlock_irq(shost->host_lock);
8526 ndlp->nlp_last_elscmd = ELS_CMD_FLOGI;
8527 phba->pport->port_state = LPFC_FLOGI;
8528 return;
8529}
8530
8531/**
8532 * lpfc_fabric_login_reqd - Check if FLOGI required.
8533 * @phba: pointer to lpfc hba data structure.
8534 * @cmdiocb: pointer to FDISC command iocb.
8535 * @rspiocb: pointer to FDISC response iocb.
8536 *
8537 * This routine checks if a FLOGI is reguired for FDISC
8538 * to succeed.
8539 **/
8540static int
8541lpfc_fabric_login_reqd(struct lpfc_hba *phba,
8542 struct lpfc_iocbq *cmdiocb,
8543 struct lpfc_iocbq *rspiocb)
8544{
8545
8546 if ((rspiocb->iocb.ulpStatus != IOSTAT_FABRIC_RJT) ||
8547 (rspiocb->iocb.un.ulpWord[4] != RJT_LOGIN_REQUIRED))
8548 return 0;
8549 else
8550 return 1;
8551}
8552
e59058c4 8553/**
3621a710 8554 * lpfc_cmpl_els_fdisc - Completion function for fdisc iocb command
e59058c4
JS
8555 * @phba: pointer to lpfc hba data structure.
8556 * @cmdiocb: pointer to lpfc command iocb data structure.
8557 * @rspiocb: pointer to lpfc response iocb data structure.
8558 *
8559 * This routine is the completion callback function to a Fabric Discover
8560 * (FDISC) ELS command. Since all the FDISC ELS commands are issued
8561 * single threaded, each FDISC completion callback function will reset
8562 * the discovery timer for all vports such that the timers will not get
8563 * unnecessary timeout. The function checks the FDISC IOCB status. If error
8564 * detected, the vport will be set to FC_VPORT_FAILED state. Otherwise,the
8565 * vport will set to FC_VPORT_ACTIVE state. It then checks whether the DID
8566 * assigned to the vport has been changed with the completion of the FDISC
8567 * command. If so, both RPI (Remote Port Index) and VPI (Virtual Port Index)
8568 * are unregistered from the HBA, and then the lpfc_register_new_vport()
8569 * routine is invoked to register new vport with the HBA. Otherwise, the
8570 * lpfc_do_scr_ns_plogi() routine is invoked to issue a PLOGI to the Name
8571 * Server for State Change Request (SCR).
8572 **/
92d7f7b0
JS
8573static void
8574lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
8575 struct lpfc_iocbq *rspiocb)
8576{
8577 struct lpfc_vport *vport = cmdiocb->vport;
8578 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8579 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
8580 struct lpfc_nodelist *np;
8581 struct lpfc_nodelist *next_np;
8582 IOCB_t *irsp = &rspiocb->iocb;
8583 struct lpfc_iocbq *piocb;
92494144
JS
8584 struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp;
8585 struct serv_parm *sp;
8586 uint8_t fabric_param_changed;
92d7f7b0 8587
e8b62011
JS
8588 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
8589 "0123 FDISC completes. x%x/x%x prevDID: x%x\n",
8590 irsp->ulpStatus, irsp->un.ulpWord[4],
8591 vport->fc_prevDID);
92d7f7b0
JS
8592 /* Since all FDISCs are being single threaded, we
8593 * must reset the discovery timer for ALL vports
8594 * waiting to send FDISC when one completes.
8595 */
8596 list_for_each_entry(piocb, &phba->fabric_iocb_list, list) {
8597 lpfc_set_disctmo(piocb->vport);
8598 }
8599
858c9f6c
JS
8600 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
8601 "FDISC cmpl: status:x%x/x%x prevdid:x%x",
8602 irsp->ulpStatus, irsp->un.ulpWord[4], vport->fc_prevDID);
8603
92d7f7b0 8604 if (irsp->ulpStatus) {
695a814e
JS
8605
8606 if (lpfc_fabric_login_reqd(phba, cmdiocb, rspiocb)) {
8607 lpfc_retry_pport_discovery(phba);
8608 goto out;
8609 }
8610
92d7f7b0
JS
8611 /* Check for retry */
8612 if (lpfc_els_retry(phba, cmdiocb, rspiocb))
8613 goto out;
92d7f7b0 8614 /* FDISC failed */
e8b62011 8615 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
6b5151fd 8616 "0126 FDISC failed. (x%x/x%x)\n",
e8b62011 8617 irsp->ulpStatus, irsp->un.ulpWord[4]);
d7c255b2
JS
8618 goto fdisc_failed;
8619 }
d7c255b2 8620 spin_lock_irq(shost->host_lock);
695a814e 8621 vport->fc_flag &= ~FC_VPORT_CVL_RCVD;
4b40c59e 8622 vport->fc_flag &= ~FC_VPORT_LOGO_RCVD;
d7c255b2 8623 vport->fc_flag |= FC_FABRIC;
76a95d75 8624 if (vport->phba->fc_topology == LPFC_TOPOLOGY_LOOP)
d7c255b2
JS
8625 vport->fc_flag |= FC_PUBLIC_LOOP;
8626 spin_unlock_irq(shost->host_lock);
92d7f7b0 8627
d7c255b2
JS
8628 vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID;
8629 lpfc_vport_set_state(vport, FC_VPORT_ACTIVE);
92494144 8630 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
a2fc4aef
JS
8631 if (!prsp)
8632 goto out;
92494144
JS
8633 sp = prsp->virt + sizeof(uint32_t);
8634 fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp);
8635 memcpy(&vport->fabric_portname, &sp->portName,
8636 sizeof(struct lpfc_name));
8637 memcpy(&vport->fabric_nodename, &sp->nodeName,
8638 sizeof(struct lpfc_name));
8639 if (fabric_param_changed &&
d7c255b2
JS
8640 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
8641 /* If our NportID changed, we need to ensure all
8642 * remaining NPORTs get unreg_login'ed so we can
8643 * issue unreg_vpi.
8644 */
8645 list_for_each_entry_safe(np, next_np,
8646 &vport->fc_nodes, nlp_listp) {
8647 if (!NLP_CHK_NODE_ACT(ndlp) ||
8648 (np->nlp_state != NLP_STE_NPR_NODE) ||
8649 !(np->nlp_flag & NLP_NPR_ADISC))
8650 continue;
09372820 8651 spin_lock_irq(shost->host_lock);
d7c255b2 8652 np->nlp_flag &= ~NLP_NPR_ADISC;
09372820 8653 spin_unlock_irq(shost->host_lock);
d7c255b2 8654 lpfc_unreg_rpi(vport, np);
92d7f7b0 8655 }
78730cfe 8656 lpfc_cleanup_pending_mbox(vport);
5af5eee7
JS
8657
8658 if (phba->sli_rev == LPFC_SLI_REV4)
8659 lpfc_sli4_unreg_all_rpis(vport);
8660
d7c255b2
JS
8661 lpfc_mbx_unreg_vpi(vport);
8662 spin_lock_irq(shost->host_lock);
8663 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
0f65ff68
JS
8664 if (phba->sli_rev == LPFC_SLI_REV4)
8665 vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
4b40c59e
JS
8666 else
8667 vport->fc_flag |= FC_LOGO_RCVD_DID_CHNG;
d7c255b2 8668 spin_unlock_irq(shost->host_lock);
38b92ef8
JS
8669 } else if ((phba->sli_rev == LPFC_SLI_REV4) &&
8670 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
8671 /*
8672 * Driver needs to re-reg VPI in order for f/w
8673 * to update the MAC address.
8674 */
8675 lpfc_register_new_vport(phba, vport, ndlp);
5ac6b303 8676 goto out;
92d7f7b0
JS
8677 }
8678
ecfd03c6
JS
8679 if (vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI)
8680 lpfc_issue_init_vpi(vport);
8681 else if (vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)
d7c255b2
JS
8682 lpfc_register_new_vport(phba, vport, ndlp);
8683 else
8684 lpfc_do_scr_ns_plogi(phba, vport);
8685 goto out;
8686fdisc_failed:
845d9e8d
JS
8687 if (vport->fc_vport &&
8688 (vport->fc_vport->vport_state != FC_VPORT_NO_FABRIC_RSCS))
c84163d1 8689 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
d7c255b2
JS
8690 /* Cancel discovery timer */
8691 lpfc_can_disctmo(vport);
8692 lpfc_nlp_put(ndlp);
92d7f7b0
JS
8693out:
8694 lpfc_els_free_iocb(phba, cmdiocb);
8695}
8696
e59058c4 8697/**
3621a710 8698 * lpfc_issue_els_fdisc - Issue a fdisc iocb command
e59058c4
JS
8699 * @vport: pointer to a virtual N_Port data structure.
8700 * @ndlp: pointer to a node-list data structure.
8701 * @retry: number of retries to the command IOCB.
8702 *
8703 * This routine prepares and issues a Fabric Discover (FDISC) IOCB to
8704 * a remote node (@ndlp) off a @vport. It uses the lpfc_issue_fabric_iocb()
8705 * routine to issue the IOCB, which makes sure only one outstanding fabric
8706 * IOCB will be sent off HBA at any given time.
8707 *
8708 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
8709 * will be incremented by 1 for holding the ndlp and the reference to ndlp
8710 * will be stored into the context1 field of the IOCB for the completion
8711 * callback function to the FDISC ELS command.
8712 *
8713 * Return code
8714 * 0 - Successfully issued fdisc iocb command
8715 * 1 - Failed to issue fdisc iocb command
8716 **/
a6ababd2 8717static int
92d7f7b0
JS
8718lpfc_issue_els_fdisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
8719 uint8_t retry)
8720{
8721 struct lpfc_hba *phba = vport->phba;
8722 IOCB_t *icmd;
8723 struct lpfc_iocbq *elsiocb;
8724 struct serv_parm *sp;
8725 uint8_t *pcmd;
8726 uint16_t cmdsize;
8727 int did = ndlp->nlp_DID;
8728 int rc;
92d7f7b0 8729
5ffc266e 8730 vport->port_state = LPFC_FDISC;
6b5151fd 8731 vport->fc_myDID = 0;
92d7f7b0
JS
8732 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm));
8733 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did,
8734 ELS_CMD_FDISC);
8735 if (!elsiocb) {
92d7f7b0 8736 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
e8b62011
JS
8737 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
8738 "0255 Issue FDISC: no IOCB\n");
92d7f7b0
JS
8739 return 1;
8740 }
8741
8742 icmd = &elsiocb->iocb;
8743 icmd->un.elsreq64.myID = 0;
8744 icmd->un.elsreq64.fl = 1;
8745
73d91e50
JS
8746 /*
8747 * SLI3 ports require a different context type value than SLI4.
8748 * Catch SLI3 ports here and override the prep.
8749 */
8750 if (phba->sli_rev == LPFC_SLI_REV3) {
f1126688
JS
8751 icmd->ulpCt_h = 1;
8752 icmd->ulpCt_l = 0;
8753 }
92d7f7b0
JS
8754
8755 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
8756 *((uint32_t *) (pcmd)) = ELS_CMD_FDISC;
8757 pcmd += sizeof(uint32_t); /* CSP Word 1 */
8758 memcpy(pcmd, &vport->phba->pport->fc_sparam, sizeof(struct serv_parm));
8759 sp = (struct serv_parm *) pcmd;
8760 /* Setup CSPs accordingly for Fabric */
8761 sp->cmn.e_d_tov = 0;
8762 sp->cmn.w2.r_a_tov = 0;
df9e1b59 8763 sp->cmn.virtual_fabric_support = 0;
92d7f7b0
JS
8764 sp->cls1.classValid = 0;
8765 sp->cls2.seqDelivery = 1;
8766 sp->cls3.seqDelivery = 1;
8767
8768 pcmd += sizeof(uint32_t); /* CSP Word 2 */
8769 pcmd += sizeof(uint32_t); /* CSP Word 3 */
8770 pcmd += sizeof(uint32_t); /* CSP Word 4 */
8771 pcmd += sizeof(uint32_t); /* Port Name */
8772 memcpy(pcmd, &vport->fc_portname, 8);
8773 pcmd += sizeof(uint32_t); /* Node Name */
8774 pcmd += sizeof(uint32_t); /* Node Name */
8775 memcpy(pcmd, &vport->fc_nodename, 8);
aeb3c817 8776 memset(sp->un.vendorVersion, 0, sizeof(sp->un.vendorVersion));
92d7f7b0
JS
8777 lpfc_set_disctmo(vport);
8778
8779 phba->fc_stat.elsXmitFDISC++;
8780 elsiocb->iocb_cmpl = lpfc_cmpl_els_fdisc;
8781
858c9f6c
JS
8782 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
8783 "Issue FDISC: did:x%x",
8784 did, 0, 0);
8785
92d7f7b0
JS
8786 rc = lpfc_issue_fabric_iocb(phba, elsiocb);
8787 if (rc == IOCB_ERROR) {
8788 lpfc_els_free_iocb(phba, elsiocb);
92d7f7b0 8789 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
e8b62011
JS
8790 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
8791 "0256 Issue FDISC: Cannot send IOCB\n");
92d7f7b0
JS
8792 return 1;
8793 }
8794 lpfc_vport_set_state(vport, FC_VPORT_INITIALIZING);
92d7f7b0
JS
8795 return 0;
8796}
8797
e59058c4 8798/**
3621a710 8799 * lpfc_cmpl_els_npiv_logo - Completion function with vport logo
e59058c4
JS
8800 * @phba: pointer to lpfc hba data structure.
8801 * @cmdiocb: pointer to lpfc command iocb data structure.
8802 * @rspiocb: pointer to lpfc response iocb data structure.
8803 *
8804 * This routine is the completion callback function to the issuing of a LOGO
8805 * ELS command off a vport. It frees the command IOCB and then decrement the
8806 * reference count held on ndlp for this completion function, indicating that
8807 * the reference to the ndlp is no long needed. Note that the
8808 * lpfc_els_free_iocb() routine decrements the ndlp reference held for this
8809 * callback function and an additional explicit ndlp reference decrementation
8810 * will trigger the actual release of the ndlp.
8811 **/
92d7f7b0
JS
8812static void
8813lpfc_cmpl_els_npiv_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
8814 struct lpfc_iocbq *rspiocb)
8815{
8816 struct lpfc_vport *vport = cmdiocb->vport;
858c9f6c 8817 IOCB_t *irsp;
e47c9093 8818 struct lpfc_nodelist *ndlp;
9589b062 8819 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
858c9f6c 8820
9589b062 8821 ndlp = (struct lpfc_nodelist *)cmdiocb->context1;
858c9f6c
JS
8822 irsp = &rspiocb->iocb;
8823 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
8824 "LOGO npiv cmpl: status:x%x/x%x did:x%x",
8825 irsp->ulpStatus, irsp->un.ulpWord[4], irsp->un.rcvels.remoteID);
92d7f7b0
JS
8826
8827 lpfc_els_free_iocb(phba, cmdiocb);
8828 vport->unreg_vpi_cmpl = VPORT_ERROR;
e47c9093
JS
8829
8830 /* Trigger the release of the ndlp after logo */
8831 lpfc_nlp_put(ndlp);
9589b062
JS
8832
8833 /* NPIV LOGO completes to NPort <nlp_DID> */
8834 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
8835 "2928 NPIV LOGO completes to NPort x%x "
8836 "Data: x%x x%x x%x x%x\n",
8837 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
8838 irsp->ulpTimeout, vport->num_disc_nodes);
8839
8840 if (irsp->ulpStatus == IOSTAT_SUCCESS) {
8841 spin_lock_irq(shost->host_lock);
73dc0dbe 8842 vport->fc_flag &= ~FC_NDISC_ACTIVE;
9589b062
JS
8843 vport->fc_flag &= ~FC_FABRIC;
8844 spin_unlock_irq(shost->host_lock);
73dc0dbe 8845 lpfc_can_disctmo(vport);
9589b062 8846 }
92d7f7b0
JS
8847}
8848
e59058c4 8849/**
3621a710 8850 * lpfc_issue_els_npiv_logo - Issue a logo off a vport
e59058c4
JS
8851 * @vport: pointer to a virtual N_Port data structure.
8852 * @ndlp: pointer to a node-list data structure.
8853 *
8854 * This routine issues a LOGO ELS command to an @ndlp off a @vport.
8855 *
8856 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
8857 * will be incremented by 1 for holding the ndlp and the reference to ndlp
8858 * will be stored into the context1 field of the IOCB for the completion
8859 * callback function to the LOGO ELS command.
8860 *
8861 * Return codes
8862 * 0 - Successfully issued logo off the @vport
8863 * 1 - Failed to issue logo off the @vport
8864 **/
92d7f7b0
JS
8865int
8866lpfc_issue_els_npiv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
8867{
8868 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8869 struct lpfc_hba *phba = vport->phba;
92d7f7b0
JS
8870 struct lpfc_iocbq *elsiocb;
8871 uint8_t *pcmd;
8872 uint16_t cmdsize;
8873
8874 cmdsize = 2 * sizeof(uint32_t) + sizeof(struct lpfc_name);
8875 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, ndlp->nlp_DID,
8876 ELS_CMD_LOGO);
8877 if (!elsiocb)
8878 return 1;
8879
92d7f7b0
JS
8880 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
8881 *((uint32_t *) (pcmd)) = ELS_CMD_LOGO;
8882 pcmd += sizeof(uint32_t);
8883
8884 /* Fill in LOGO payload */
8885 *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID);
8886 pcmd += sizeof(uint32_t);
8887 memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name));
8888
858c9f6c
JS
8889 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
8890 "Issue LOGO npiv did:x%x flg:x%x",
8891 ndlp->nlp_DID, ndlp->nlp_flag, 0);
8892
92d7f7b0
JS
8893 elsiocb->iocb_cmpl = lpfc_cmpl_els_npiv_logo;
8894 spin_lock_irq(shost->host_lock);
8895 ndlp->nlp_flag |= NLP_LOGO_SND;
8896 spin_unlock_irq(shost->host_lock);
3772a991
JS
8897 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
8898 IOCB_ERROR) {
92d7f7b0
JS
8899 spin_lock_irq(shost->host_lock);
8900 ndlp->nlp_flag &= ~NLP_LOGO_SND;
8901 spin_unlock_irq(shost->host_lock);
8902 lpfc_els_free_iocb(phba, elsiocb);
8903 return 1;
8904 }
8905 return 0;
8906}
8907
e59058c4 8908/**
3621a710 8909 * lpfc_fabric_block_timeout - Handler function to the fabric block timer
e59058c4
JS
8910 * @ptr: holder for the timer function associated data.
8911 *
8912 * This routine is invoked by the fabric iocb block timer after
8913 * timeout. It posts the fabric iocb block timeout event by setting the
8914 * WORKER_FABRIC_BLOCK_TMO bit to work port event bitmap and then invokes
8915 * lpfc_worker_wake_up() routine to wake up the worker thread. It is for
8916 * the worker thread to invoke the lpfc_unblock_fabric_iocbs() on the
8917 * posted event WORKER_FABRIC_BLOCK_TMO.
8918 **/
92d7f7b0
JS
8919void
8920lpfc_fabric_block_timeout(unsigned long ptr)
8921{
8922 struct lpfc_hba *phba = (struct lpfc_hba *) ptr;
8923 unsigned long iflags;
8924 uint32_t tmo_posted;
5e9d9b82 8925
92d7f7b0
JS
8926 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
8927 tmo_posted = phba->pport->work_port_events & WORKER_FABRIC_BLOCK_TMO;
8928 if (!tmo_posted)
8929 phba->pport->work_port_events |= WORKER_FABRIC_BLOCK_TMO;
8930 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
8931
5e9d9b82
JS
8932 if (!tmo_posted)
8933 lpfc_worker_wake_up(phba);
8934 return;
92d7f7b0
JS
8935}
8936
e59058c4 8937/**
3621a710 8938 * lpfc_resume_fabric_iocbs - Issue a fabric iocb from driver internal list
e59058c4
JS
8939 * @phba: pointer to lpfc hba data structure.
8940 *
8941 * This routine issues one fabric iocb from the driver internal list to
8942 * the HBA. It first checks whether it's ready to issue one fabric iocb to
8943 * the HBA (whether there is no outstanding fabric iocb). If so, it shall
8944 * remove one pending fabric iocb from the driver internal list and invokes
8945 * lpfc_sli_issue_iocb() routine to send the fabric iocb to the HBA.
8946 **/
92d7f7b0
JS
8947static void
8948lpfc_resume_fabric_iocbs(struct lpfc_hba *phba)
8949{
8950 struct lpfc_iocbq *iocb;
8951 unsigned long iflags;
8952 int ret;
92d7f7b0
JS
8953 IOCB_t *cmd;
8954
8955repeat:
8956 iocb = NULL;
8957 spin_lock_irqsave(&phba->hbalock, iflags);
7f5f3d0d 8958 /* Post any pending iocb to the SLI layer */
92d7f7b0
JS
8959 if (atomic_read(&phba->fabric_iocb_count) == 0) {
8960 list_remove_head(&phba->fabric_iocb_list, iocb, typeof(*iocb),
8961 list);
8962 if (iocb)
7f5f3d0d 8963 /* Increment fabric iocb count to hold the position */
92d7f7b0
JS
8964 atomic_inc(&phba->fabric_iocb_count);
8965 }
8966 spin_unlock_irqrestore(&phba->hbalock, iflags);
8967 if (iocb) {
8968 iocb->fabric_iocb_cmpl = iocb->iocb_cmpl;
8969 iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb;
8970 iocb->iocb_flag |= LPFC_IO_FABRIC;
8971
858c9f6c
JS
8972 lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD,
8973 "Fabric sched1: ste:x%x",
8974 iocb->vport->port_state, 0, 0);
8975
3772a991 8976 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0);
92d7f7b0
JS
8977
8978 if (ret == IOCB_ERROR) {
8979 iocb->iocb_cmpl = iocb->fabric_iocb_cmpl;
8980 iocb->fabric_iocb_cmpl = NULL;
8981 iocb->iocb_flag &= ~LPFC_IO_FABRIC;
8982 cmd = &iocb->iocb;
8983 cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
8984 cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
8985 iocb->iocb_cmpl(phba, iocb, iocb);
8986
8987 atomic_dec(&phba->fabric_iocb_count);
8988 goto repeat;
8989 }
8990 }
8991
8992 return;
8993}
8994
e59058c4 8995/**
3621a710 8996 * lpfc_unblock_fabric_iocbs - Unblock issuing fabric iocb command
e59058c4
JS
8997 * @phba: pointer to lpfc hba data structure.
8998 *
8999 * This routine unblocks the issuing fabric iocb command. The function
9000 * will clear the fabric iocb block bit and then invoke the routine
9001 * lpfc_resume_fabric_iocbs() to issue one of the pending fabric iocb
9002 * from the driver internal fabric iocb list.
9003 **/
92d7f7b0
JS
9004void
9005lpfc_unblock_fabric_iocbs(struct lpfc_hba *phba)
9006{
9007 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
9008
9009 lpfc_resume_fabric_iocbs(phba);
9010 return;
9011}
9012
e59058c4 9013/**
3621a710 9014 * lpfc_block_fabric_iocbs - Block issuing fabric iocb command
e59058c4
JS
9015 * @phba: pointer to lpfc hba data structure.
9016 *
9017 * This routine blocks the issuing fabric iocb for a specified amount of
9018 * time (currently 100 ms). This is done by set the fabric iocb block bit
9019 * and set up a timeout timer for 100ms. When the block bit is set, no more
9020 * fabric iocb will be issued out of the HBA.
9021 **/
92d7f7b0
JS
9022static void
9023lpfc_block_fabric_iocbs(struct lpfc_hba *phba)
9024{
9025 int blocked;
9026
9027 blocked = test_and_set_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
7f5f3d0d 9028 /* Start a timer to unblock fabric iocbs after 100ms */
92d7f7b0 9029 if (!blocked)
256ec0d0
JS
9030 mod_timer(&phba->fabric_block_timer,
9031 jiffies + msecs_to_jiffies(100));
92d7f7b0
JS
9032
9033 return;
9034}
9035
e59058c4 9036/**
3621a710 9037 * lpfc_cmpl_fabric_iocb - Completion callback function for fabric iocb
e59058c4
JS
9038 * @phba: pointer to lpfc hba data structure.
9039 * @cmdiocb: pointer to lpfc command iocb data structure.
9040 * @rspiocb: pointer to lpfc response iocb data structure.
9041 *
9042 * This routine is the callback function that is put to the fabric iocb's
9043 * callback function pointer (iocb->iocb_cmpl). The original iocb's callback
9044 * function pointer has been stored in iocb->fabric_iocb_cmpl. This callback
9045 * function first restores and invokes the original iocb's callback function
9046 * and then invokes the lpfc_resume_fabric_iocbs() routine to issue the next
9047 * fabric bound iocb from the driver internal fabric iocb list onto the wire.
9048 **/
92d7f7b0
JS
9049static void
9050lpfc_cmpl_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9051 struct lpfc_iocbq *rspiocb)
9052{
9053 struct ls_rjt stat;
9054
e01ea5e2 9055 BUG_ON((cmdiocb->iocb_flag & LPFC_IO_FABRIC) != LPFC_IO_FABRIC);
92d7f7b0
JS
9056
9057 switch (rspiocb->iocb.ulpStatus) {
9058 case IOSTAT_NPORT_RJT:
9059 case IOSTAT_FABRIC_RJT:
9060 if (rspiocb->iocb.un.ulpWord[4] & RJT_UNAVAIL_TEMP) {
9061 lpfc_block_fabric_iocbs(phba);
ed957684 9062 }
92d7f7b0
JS
9063 break;
9064
9065 case IOSTAT_NPORT_BSY:
9066 case IOSTAT_FABRIC_BSY:
9067 lpfc_block_fabric_iocbs(phba);
9068 break;
9069
9070 case IOSTAT_LS_RJT:
9071 stat.un.lsRjtError =
9072 be32_to_cpu(rspiocb->iocb.un.ulpWord[4]);
9073 if ((stat.un.b.lsRjtRsnCode == LSRJT_UNABLE_TPC) ||
9074 (stat.un.b.lsRjtRsnCode == LSRJT_LOGICAL_BSY))
9075 lpfc_block_fabric_iocbs(phba);
9076 break;
9077 }
9078
a0f2d3ef 9079 BUG_ON(atomic_read(&phba->fabric_iocb_count) == 0);
92d7f7b0
JS
9080
9081 cmdiocb->iocb_cmpl = cmdiocb->fabric_iocb_cmpl;
9082 cmdiocb->fabric_iocb_cmpl = NULL;
9083 cmdiocb->iocb_flag &= ~LPFC_IO_FABRIC;
9084 cmdiocb->iocb_cmpl(phba, cmdiocb, rspiocb);
9085
9086 atomic_dec(&phba->fabric_iocb_count);
9087 if (!test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags)) {
7f5f3d0d
JS
9088 /* Post any pending iocbs to HBA */
9089 lpfc_resume_fabric_iocbs(phba);
92d7f7b0
JS
9090 }
9091}
9092
e59058c4 9093/**
3621a710 9094 * lpfc_issue_fabric_iocb - Issue a fabric iocb command
e59058c4
JS
9095 * @phba: pointer to lpfc hba data structure.
9096 * @iocb: pointer to lpfc command iocb data structure.
9097 *
9098 * This routine is used as the top-level API for issuing a fabric iocb command
9099 * such as FLOGI and FDISC. To accommodate certain switch fabric, this driver
9100 * function makes sure that only one fabric bound iocb will be outstanding at
9101 * any given time. As such, this function will first check to see whether there
9102 * is already an outstanding fabric iocb on the wire. If so, it will put the
9103 * newly issued iocb onto the driver internal fabric iocb list, waiting to be
9104 * issued later. Otherwise, it will issue the iocb on the wire and update the
9105 * fabric iocb count it indicate that there is one fabric iocb on the wire.
9106 *
9107 * Note, this implementation has a potential sending out fabric IOCBs out of
9108 * order. The problem is caused by the construction of the "ready" boolen does
9109 * not include the condition that the internal fabric IOCB list is empty. As
9110 * such, it is possible a fabric IOCB issued by this routine might be "jump"
9111 * ahead of the fabric IOCBs in the internal list.
9112 *
9113 * Return code
9114 * IOCB_SUCCESS - either fabric iocb put on the list or issued successfully
9115 * IOCB_ERROR - failed to issue fabric iocb
9116 **/
a6ababd2 9117static int
92d7f7b0
JS
9118lpfc_issue_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *iocb)
9119{
9120 unsigned long iflags;
92d7f7b0
JS
9121 int ready;
9122 int ret;
9123
a0f2d3ef 9124 BUG_ON(atomic_read(&phba->fabric_iocb_count) > 1);
92d7f7b0
JS
9125
9126 spin_lock_irqsave(&phba->hbalock, iflags);
9127 ready = atomic_read(&phba->fabric_iocb_count) == 0 &&
9128 !test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
9129
7f5f3d0d
JS
9130 if (ready)
9131 /* Increment fabric iocb count to hold the position */
9132 atomic_inc(&phba->fabric_iocb_count);
92d7f7b0
JS
9133 spin_unlock_irqrestore(&phba->hbalock, iflags);
9134 if (ready) {
9135 iocb->fabric_iocb_cmpl = iocb->iocb_cmpl;
9136 iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb;
9137 iocb->iocb_flag |= LPFC_IO_FABRIC;
9138
858c9f6c
JS
9139 lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD,
9140 "Fabric sched2: ste:x%x",
9141 iocb->vport->port_state, 0, 0);
9142
3772a991 9143 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0);
92d7f7b0
JS
9144
9145 if (ret == IOCB_ERROR) {
9146 iocb->iocb_cmpl = iocb->fabric_iocb_cmpl;
9147 iocb->fabric_iocb_cmpl = NULL;
9148 iocb->iocb_flag &= ~LPFC_IO_FABRIC;
9149 atomic_dec(&phba->fabric_iocb_count);
9150 }
9151 } else {
9152 spin_lock_irqsave(&phba->hbalock, iflags);
9153 list_add_tail(&iocb->list, &phba->fabric_iocb_list);
9154 spin_unlock_irqrestore(&phba->hbalock, iflags);
9155 ret = IOCB_SUCCESS;
9156 }
9157 return ret;
9158}
9159
e59058c4 9160/**
3621a710 9161 * lpfc_fabric_abort_vport - Abort a vport's iocbs from driver fabric iocb list
e59058c4
JS
9162 * @vport: pointer to a virtual N_Port data structure.
9163 *
9164 * This routine aborts all the IOCBs associated with a @vport from the
9165 * driver internal fabric IOCB list. The list contains fabric IOCBs to be
9166 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB
9167 * list, removes each IOCB associated with the @vport off the list, set the
9168 * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function
9169 * associated with the IOCB.
9170 **/
a6ababd2 9171static void lpfc_fabric_abort_vport(struct lpfc_vport *vport)
92d7f7b0
JS
9172{
9173 LIST_HEAD(completions);
9174 struct lpfc_hba *phba = vport->phba;
9175 struct lpfc_iocbq *tmp_iocb, *piocb;
92d7f7b0
JS
9176
9177 spin_lock_irq(&phba->hbalock);
9178 list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list,
9179 list) {
9180
9181 if (piocb->vport != vport)
9182 continue;
9183
9184 list_move_tail(&piocb->list, &completions);
9185 }
9186 spin_unlock_irq(&phba->hbalock);
9187
a257bf90
JS
9188 /* Cancel all the IOCBs from the completions list */
9189 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
9190 IOERR_SLI_ABORTED);
92d7f7b0
JS
9191}
9192
e59058c4 9193/**
3621a710 9194 * lpfc_fabric_abort_nport - Abort a ndlp's iocbs from driver fabric iocb list
e59058c4
JS
9195 * @ndlp: pointer to a node-list data structure.
9196 *
9197 * This routine aborts all the IOCBs associated with an @ndlp from the
9198 * driver internal fabric IOCB list. The list contains fabric IOCBs to be
9199 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB
9200 * list, removes each IOCB associated with the @ndlp off the list, set the
9201 * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function
9202 * associated with the IOCB.
9203 **/
92d7f7b0
JS
9204void lpfc_fabric_abort_nport(struct lpfc_nodelist *ndlp)
9205{
9206 LIST_HEAD(completions);
a257bf90 9207 struct lpfc_hba *phba = ndlp->phba;
92d7f7b0 9208 struct lpfc_iocbq *tmp_iocb, *piocb;
895427bd
JS
9209 struct lpfc_sli_ring *pring;
9210
9211 pring = lpfc_phba_elsring(phba);
92d7f7b0
JS
9212
9213 spin_lock_irq(&phba->hbalock);
9214 list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list,
9215 list) {
9216 if ((lpfc_check_sli_ndlp(phba, pring, piocb, ndlp))) {
9217
9218 list_move_tail(&piocb->list, &completions);
ed957684 9219 }
dea3101e 9220 }
92d7f7b0
JS
9221 spin_unlock_irq(&phba->hbalock);
9222
a257bf90
JS
9223 /* Cancel all the IOCBs from the completions list */
9224 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
9225 IOERR_SLI_ABORTED);
92d7f7b0
JS
9226}
9227
e59058c4 9228/**
3621a710 9229 * lpfc_fabric_abort_hba - Abort all iocbs on driver fabric iocb list
e59058c4
JS
9230 * @phba: pointer to lpfc hba data structure.
9231 *
9232 * This routine aborts all the IOCBs currently on the driver internal
9233 * fabric IOCB list. The list contains fabric IOCBs to be issued to the ELS
9234 * IOCB ring. This function takes the entire IOCB list off the fabric IOCB
9235 * list, removes IOCBs off the list, set the status feild to
9236 * IOSTAT_LOCAL_REJECT, and invokes the callback function associated with
9237 * the IOCB.
9238 **/
92d7f7b0
JS
9239void lpfc_fabric_abort_hba(struct lpfc_hba *phba)
9240{
9241 LIST_HEAD(completions);
92d7f7b0
JS
9242
9243 spin_lock_irq(&phba->hbalock);
9244 list_splice_init(&phba->fabric_iocb_list, &completions);
9245 spin_unlock_irq(&phba->hbalock);
9246
a257bf90
JS
9247 /* Cancel all the IOCBs from the completions list */
9248 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
9249 IOERR_SLI_ABORTED);
dea3101e 9250}
6fb120a7 9251
1151e3ec
JS
9252/**
9253 * lpfc_sli4_vport_delete_els_xri_aborted -Remove all ndlp references for vport
9254 * @vport: pointer to lpfc vport data structure.
9255 *
9256 * This routine is invoked by the vport cleanup for deletions and the cleanup
9257 * for an ndlp on removal.
9258 **/
9259void
9260lpfc_sli4_vport_delete_els_xri_aborted(struct lpfc_vport *vport)
9261{
9262 struct lpfc_hba *phba = vport->phba;
9263 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
9264 unsigned long iflag = 0;
9265
9266 spin_lock_irqsave(&phba->hbalock, iflag);
895427bd 9267 spin_lock(&phba->sli4_hba.sgl_list_lock);
1151e3ec
JS
9268 list_for_each_entry_safe(sglq_entry, sglq_next,
9269 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) {
9270 if (sglq_entry->ndlp && sglq_entry->ndlp->vport == vport)
9271 sglq_entry->ndlp = NULL;
9272 }
895427bd 9273 spin_unlock(&phba->sli4_hba.sgl_list_lock);
1151e3ec
JS
9274 spin_unlock_irqrestore(&phba->hbalock, iflag);
9275 return;
9276}
9277
6fb120a7
JS
9278/**
9279 * lpfc_sli4_els_xri_aborted - Slow-path process of els xri abort
9280 * @phba: pointer to lpfc hba data structure.
9281 * @axri: pointer to the els xri abort wcqe structure.
9282 *
9283 * This routine is invoked by the worker thread to process a SLI4 slow-path
9284 * ELS aborted xri.
9285 **/
9286void
9287lpfc_sli4_els_xri_aborted(struct lpfc_hba *phba,
9288 struct sli4_wcqe_xri_aborted *axri)
9289{
9290 uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri);
19ca7609 9291 uint16_t rxid = bf_get(lpfc_wcqe_xa_remote_xid, axri);
7851fe2c 9292 uint16_t lxri = 0;
19ca7609 9293
6fb120a7
JS
9294 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
9295 unsigned long iflag = 0;
19ca7609 9296 struct lpfc_nodelist *ndlp;
895427bd
JS
9297 struct lpfc_sli_ring *pring;
9298
9299 pring = lpfc_phba_elsring(phba);
6fb120a7 9300
0f65ff68 9301 spin_lock_irqsave(&phba->hbalock, iflag);
895427bd 9302 spin_lock(&phba->sli4_hba.sgl_list_lock);
6fb120a7
JS
9303 list_for_each_entry_safe(sglq_entry, sglq_next,
9304 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) {
9305 if (sglq_entry->sli4_xritag == xri) {
9306 list_del(&sglq_entry->list);
19ca7609
JS
9307 ndlp = sglq_entry->ndlp;
9308 sglq_entry->ndlp = NULL;
6fb120a7 9309 list_add_tail(&sglq_entry->list,
895427bd 9310 &phba->sli4_hba.lpfc_els_sgl_list);
0f65ff68 9311 sglq_entry->state = SGL_FREED;
895427bd 9312 spin_unlock(&phba->sli4_hba.sgl_list_lock);
6fb120a7 9313 spin_unlock_irqrestore(&phba->hbalock, iflag);
ee0f4fe1
JS
9314 lpfc_set_rrq_active(phba, ndlp,
9315 sglq_entry->sli4_lxritag,
9316 rxid, 1);
589a52d6
JS
9317
9318 /* Check if TXQ queue needs to be serviced */
0e9bb8d7 9319 if (!(list_empty(&pring->txq)))
589a52d6 9320 lpfc_worker_wake_up(phba);
6fb120a7
JS
9321 return;
9322 }
9323 }
895427bd 9324 spin_unlock(&phba->sli4_hba.sgl_list_lock);
7851fe2c
JS
9325 lxri = lpfc_sli4_xri_inrange(phba, xri);
9326 if (lxri == NO_XRI) {
9327 spin_unlock_irqrestore(&phba->hbalock, iflag);
9328 return;
9329 }
895427bd 9330 spin_lock(&phba->sli4_hba.sgl_list_lock);
7851fe2c 9331 sglq_entry = __lpfc_get_active_sglq(phba, lxri);
0f65ff68 9332 if (!sglq_entry || (sglq_entry->sli4_xritag != xri)) {
895427bd 9333 spin_unlock(&phba->sli4_hba.sgl_list_lock);
0f65ff68
JS
9334 spin_unlock_irqrestore(&phba->hbalock, iflag);
9335 return;
9336 }
9337 sglq_entry->state = SGL_XRI_ABORTED;
895427bd 9338 spin_unlock(&phba->sli4_hba.sgl_list_lock);
0f65ff68
JS
9339 spin_unlock_irqrestore(&phba->hbalock, iflag);
9340 return;
6fb120a7 9341}
086a345f
JS
9342
9343/* lpfc_sli_abts_recover_port - Recover a port that failed a BLS_ABORT req.
9344 * @vport: pointer to virtual port object.
9345 * @ndlp: nodelist pointer for the impacted node.
9346 *
9347 * The driver calls this routine in response to an SLI4 XRI ABORT CQE
9348 * or an SLI3 ASYNC_STATUS_CN event from the port. For either event,
9349 * the driver is required to send a LOGO to the remote node before it
9350 * attempts to recover its login to the remote node.
9351 */
9352void
9353lpfc_sli_abts_recover_port(struct lpfc_vport *vport,
9354 struct lpfc_nodelist *ndlp)
9355{
9356 struct Scsi_Host *shost;
9357 struct lpfc_hba *phba;
9358 unsigned long flags = 0;
9359
9360 shost = lpfc_shost_from_vport(vport);
9361 phba = vport->phba;
9362 if (ndlp->nlp_state != NLP_STE_MAPPED_NODE) {
9363 lpfc_printf_log(phba, KERN_INFO,
9364 LOG_SLI, "3093 No rport recovery needed. "
9365 "rport in state 0x%x\n", ndlp->nlp_state);
9366 return;
9367 }
9368 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9369 "3094 Start rport recovery on shost id 0x%x "
9370 "fc_id 0x%06x vpi 0x%x rpi 0x%x state 0x%x "
9371 "flags 0x%x\n",
9372 shost->host_no, ndlp->nlp_DID,
9373 vport->vpi, ndlp->nlp_rpi, ndlp->nlp_state,
9374 ndlp->nlp_flag);
9375 /*
9376 * The rport is not responding. Remove the FCP-2 flag to prevent
9377 * an ADISC in the follow-up recovery code.
9378 */
9379 spin_lock_irqsave(shost->host_lock, flags);
9380 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
9381 spin_unlock_irqrestore(shost->host_lock, flags);
9382 lpfc_issue_els_logo(vport, ndlp, 0);
9383 lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE);
9384}
9385