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iwlwifi: don't include iwl-dev.h from iwl-devtrace.h
[linux-block.git] / drivers / scsi / lpfc / lpfc_nportdisc.c
CommitLineData
92d7f7b0 1 /*******************************************************************
dea3101e 2 * This file is part of the Emulex Linux Device Driver for *
c44ce173 3 * Fibre Channel Host Bus Adapters. *
d8e93df1 4 * Copyright (C) 2004-2009 Emulex. All rights reserved. *
c44ce173 5 * EMULEX and SLI are trademarks of Emulex. *
dea3101e 6 * www.emulex.com *
c44ce173 7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
dea3101e 8 * *
9 * This program is free software; you can redistribute it and/or *
c44ce173
JSEC		 10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
dea3101e 20 *******************************************************************/
21
dea3101e 22#include <linux/blkdev.h>
23#include <linux/pci.h>
24#include <linux/interrupt.h>
25
91886523 26#include <scsi/scsi.h>
dea3101e 27#include <scsi/scsi_device.h>
28#include <scsi/scsi_host.h>
29#include <scsi/scsi_transport_fc.h>
30
da0436e9 31#include "lpfc_hw4.h"
dea3101e 32#include "lpfc_hw.h"
33#include "lpfc_sli.h"
da0436e9 34#include "lpfc_sli4.h"
ea2151b4 35#include "lpfc_nl.h"
dea3101e 36#include "lpfc_disc.h"
37#include "lpfc_scsi.h"
38#include "lpfc.h"
39#include "lpfc_logmsg.h"
40#include "lpfc_crtn.h"
92d7f7b0 41#include "lpfc_vport.h"
858c9f6c 42#include "lpfc_debugfs.h"
dea3101e 43
44
45/* Called to verify a rcv'ed ADISC was intended for us. */
46static int
2e0fef85
JS		 47lpfc_check_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
48 struct lpfc_name *nn, struct lpfc_name *pn)
dea3101e 49{
50 /* Compare the ADISC rsp WWNN / WWPN matches our internal node
51 * table entry for that node.
52 */
2e0fef85 53 if (memcmp(nn, &ndlp->nlp_nodename, sizeof (struct lpfc_name)))
c9f8735b 54 return 0;
dea3101e 55
2e0fef85 56 if (memcmp(pn, &ndlp->nlp_portname, sizeof (struct lpfc_name)))
c9f8735b 57 return 0;
dea3101e 58
59 /* we match, return success */
c9f8735b 60 return 1;
dea3101e 61}
62
dea3101e 63int
2e0fef85 64lpfc_check_sparm(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
341af102 65 struct serv_parm *sp, uint32_t class, int flogi)
dea3101e 66{
2e0fef85 67 volatile struct serv_parm *hsp = &vport->fc_sparam;
2fb70f79
JSEC		 68 uint16_t hsp_value, ssp_value = 0;
69
70 /*
71 * The receive data field size and buffer-to-buffer receive data field
72 * size entries are 16 bits but are represented as two 8-bit fields in
73 * the driver data structure to account for rsvd bits and other control
74 * bits. Reconstruct and compare the fields as a 16-bit values before
75 * correcting the byte values.
76 */
dea3101e 77 if (sp->cls1.classValid) {
341af102
JS		 78 if (!flogi) {
79 hsp_value = ((hsp->cls1.rcvDataSizeMsb << 8) |
80 hsp->cls1.rcvDataSizeLsb);
81 ssp_value = ((sp->cls1.rcvDataSizeMsb << 8) |
82 sp->cls1.rcvDataSizeLsb);
83 if (!ssp_value)
84 goto bad_service_param;
85 if (ssp_value > hsp_value) {
86 sp->cls1.rcvDataSizeLsb =
87 hsp->cls1.rcvDataSizeLsb;
88 sp->cls1.rcvDataSizeMsb =
89 hsp->cls1.rcvDataSizeMsb;
90 }
2fb70f79 91 }
341af102 92 } else if (class == CLASS1)
92d7f7b0 93 goto bad_service_param;
dea3101e 94 if (sp->cls2.classValid) {
341af102
JS		 95 if (!flogi) {
96 hsp_value = ((hsp->cls2.rcvDataSizeMsb << 8) |
97 hsp->cls2.rcvDataSizeLsb);
98 ssp_value = ((sp->cls2.rcvDataSizeMsb << 8) |
99 sp->cls2.rcvDataSizeLsb);
100 if (!ssp_value)
101 goto bad_service_param;
102 if (ssp_value > hsp_value) {
103 sp->cls2.rcvDataSizeLsb =
104 hsp->cls2.rcvDataSizeLsb;
105 sp->cls2.rcvDataSizeMsb =
106 hsp->cls2.rcvDataSizeMsb;
107 }
2fb70f79 108 }
341af102 109 } else if (class == CLASS2)
92d7f7b0 110 goto bad_service_param;
dea3101e 111 if (sp->cls3.classValid) {
341af102
JS		 112 if (!flogi) {
113 hsp_value = ((hsp->cls3.rcvDataSizeMsb << 8) |
114 hsp->cls3.rcvDataSizeLsb);
115 ssp_value = ((sp->cls3.rcvDataSizeMsb << 8) |
116 sp->cls3.rcvDataSizeLsb);
117 if (!ssp_value)
118 goto bad_service_param;
119 if (ssp_value > hsp_value) {
120 sp->cls3.rcvDataSizeLsb =
121 hsp->cls3.rcvDataSizeLsb;
122 sp->cls3.rcvDataSizeMsb =
123 hsp->cls3.rcvDataSizeMsb;
124 }
2fb70f79 125 }
341af102 126 } else if (class == CLASS3)
92d7f7b0 127 goto bad_service_param;
dea3101e 128
2fb70f79
JSEC		 129 /*
130 * Preserve the upper four bits of the MSB from the PLOGI response.
131 * These bits contain the Buffer-to-Buffer State Change Number
132 * from the target and need to be passed to the FW.
133 */
134 hsp_value = (hsp->cmn.bbRcvSizeMsb << 8) | hsp->cmn.bbRcvSizeLsb;
135 ssp_value = (sp->cmn.bbRcvSizeMsb << 8) | sp->cmn.bbRcvSizeLsb;
136 if (ssp_value > hsp_value) {
dea3101e 137 sp->cmn.bbRcvSizeLsb = hsp->cmn.bbRcvSizeLsb;
2fb70f79
JSEC		 138 sp->cmn.bbRcvSizeMsb = (sp->cmn.bbRcvSizeMsb & 0xF0) |
139 (hsp->cmn.bbRcvSizeMsb & 0x0F);
140 }
dea3101e 141
dea3101e 142 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof (struct lpfc_name));
143 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof (struct lpfc_name));
2fb70f79 144 return 1;
92d7f7b0 145bad_service_param:
e8b62011
JS		 146 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
147 "0207 Device %x "
148 "(%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x) sent "
149 "invalid service parameters. Ignoring device.\n",
150 ndlp->nlp_DID,
151 sp->nodeName.u.wwn[0], sp->nodeName.u.wwn[1],
152 sp->nodeName.u.wwn[2], sp->nodeName.u.wwn[3],
153 sp->nodeName.u.wwn[4], sp->nodeName.u.wwn[5],
154 sp->nodeName.u.wwn[6], sp->nodeName.u.wwn[7]);
92d7f7b0 155 return 0;
dea3101e 156}
157
158static void *
2e0fef85 159lpfc_check_elscmpl_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
92d7f7b0 160 struct lpfc_iocbq *rspiocb)
dea3101e 161{
162 struct lpfc_dmabuf *pcmd, *prsp;
163 uint32_t *lp;
164 void *ptr = NULL;
165 IOCB_t *irsp;
166
167 irsp = &rspiocb->iocb;
168 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
169
170 /* For lpfc_els_abort, context2 could be zero'ed to delay
171 * freeing associated memory till after ABTS completes.
172 */
173 if (pcmd) {
174 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf,
175 list);
176 if (prsp) {
177 lp = (uint32_t *) prsp->virt;
178 ptr = (void *)((uint8_t *)lp + sizeof(uint32_t));
179 }
2fe165b6 180 } else {
dea3101e 181 /* Force ulpStatus error since we are returning NULL ptr */
182 if (!(irsp->ulpStatus)) {
183 irsp->ulpStatus = IOSTAT_LOCAL_REJECT;
184 irsp->un.ulpWord[4] = IOERR_SLI_ABORTED;
185 }
186 ptr = NULL;
187 }
c9f8735b 188 return ptr;
dea3101e 189}
190
191
192/*
193 * Free resources / clean up outstanding I/Os
194 * associated with a LPFC_NODELIST entry. This
195 * routine effectively results in a "software abort".
196 */
197int
2e0fef85 198lpfc_els_abort(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
dea3101e 199{
2534ba75 200 LIST_HEAD(completions);
2e0fef85
JS		 201 struct lpfc_sli *psli = &phba->sli;
202 struct lpfc_sli_ring *pring = &psli->ring[LPFC_ELS_RING];
dea3101e 203 struct lpfc_iocbq *iocb, *next_iocb;
dea3101e 204
205 /* Abort outstanding I/O on NPort <nlp_DID> */
e8b62011
JS		 206 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_DISCOVERY,
207 "0205 Abort outstanding I/O on NPort x%x "
208 "Data: x%x x%x x%x\n",
209 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
210 ndlp->nlp_rpi);
92d7f7b0
JS		 211
212 lpfc_fabric_abort_nport(ndlp);
dea3101e 213
dea3101e 214 /* First check the txq */
2e0fef85 215 spin_lock_irq(&phba->hbalock);
2534ba75 216 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
858c9f6c 217 /* Check to see if iocb matches the nport we are looking for */
2534ba75 218 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) {
858c9f6c 219 /* It matches, so deque and call compl with anp error */
2534ba75
JS		 220 list_move_tail(&iocb->list, &completions);
221 pring->txq_cnt--;
dea3101e 222 }
2534ba75 223 }
dea3101e 224
dea3101e 225 /* Next check the txcmplq */
07951076 226 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
858c9f6c 227 /* Check to see if iocb matches the nport we are looking for */
92d7f7b0 228 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) {
07951076 229 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
92d7f7b0 230 }
07951076 231 }
2e0fef85 232 spin_unlock_irq(&phba->hbalock);
dea3101e 233
a257bf90
JS		 234 /* Cancel all the IOCBs from the completions list */
235 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
236 IOERR_SLI_ABORTED);
2534ba75 237
0d2b6b83 238 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp);
c9f8735b 239 return 0;
dea3101e 240}
241
242static int
2e0fef85 243lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
92d7f7b0 244 struct lpfc_iocbq *cmdiocb)
dea3101e 245{
2e0fef85
JS		 246 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
247 struct lpfc_hba *phba = vport->phba;
dea3101e 248 struct lpfc_dmabuf *pcmd;
249 uint32_t *lp;
250 IOCB_t *icmd;
251 struct serv_parm *sp;
252 LPFC_MBOXQ_t *mbox;
253 struct ls_rjt stat;
254 int rc;
255
256 memset(&stat, 0, sizeof (struct ls_rjt));
695a814e 257 if (vport->port_state <= LPFC_FDISC) {
dea3101e 258 /* Before responding to PLOGI, check for pt2pt mode.
259 * If we are pt2pt, with an outstanding FLOGI, abort
260 * the FLOGI and resend it first.
261 */
2e0fef85 262 if (vport->fc_flag & FC_PT2PT) {
92d7f7b0 263 lpfc_els_abort_flogi(phba);
2e0fef85 264 if (!(vport->fc_flag & FC_PT2PT_PLOGI)) {
dea3101e 265 /* If the other side is supposed to initiate
266 * the PLOGI anyway, just ACC it now and
267 * move on with discovery.
268 */
269 phba->fc_edtov = FF_DEF_EDTOV;
270 phba->fc_ratov = FF_DEF_RATOV;
271 /* Start discovery - this should just do
272 CLEAR_LA */
2e0fef85 273 lpfc_disc_start(vport);
ed957684 274 } else
2e0fef85 275 lpfc_initial_flogi(vport);
2fe165b6 276 } else {
dea3101e 277 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY;
278 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
2e0fef85 279 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb,
858c9f6c 280 ndlp, NULL);
dea3101e 281 return 0;
282 }
283 }
284 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
285 lp = (uint32_t *) pcmd->virt;
286 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
a8adb832
JS		 287 if (wwn_to_u64(sp->portName.u.wwn) == 0) {
288 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
289 "0140 PLOGI Reject: invalid nname\n");
290 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
291 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_PNAME;
292 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
293 NULL);
294 return 0;
295 }
296 if (wwn_to_u64(sp->nodeName.u.wwn) == 0) {
297 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
298 "0141 PLOGI Reject: invalid pname\n");
299 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
300 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_NNAME;
301 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
302 NULL);
303 return 0;
304 }
341af102 305 if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0) == 0)) {
dea3101e 306 /* Reject this request because invalid parameters */
307 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
308 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
858c9f6c
JS		 309 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
310 NULL);
c9f8735b 311 return 0;
dea3101e 312 }
313 icmd = &cmdiocb->iocb;
314
315 /* PLOGI chkparm OK */
e8b62011
JS		 316 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
317 "0114 PLOGI chkparm OK Data: x%x x%x x%x x%x\n",
318 ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag,
319 ndlp->nlp_rpi);
dea3101e 320
3de2a653 321 if (vport->cfg_fcp_class == 2 && sp->cls2.classValid)
dea3101e 322 ndlp->nlp_fcp_info |= CLASS2;
ed957684 323 else
dea3101e 324 ndlp->nlp_fcp_info |= CLASS3;
2e0fef85 325
dea3101e 326 ndlp->nlp_class_sup = 0;
327 if (sp->cls1.classValid)
328 ndlp->nlp_class_sup |= FC_COS_CLASS1;
329 if (sp->cls2.classValid)
330 ndlp->nlp_class_sup |= FC_COS_CLASS2;
331 if (sp->cls3.classValid)
332 ndlp->nlp_class_sup |= FC_COS_CLASS3;
333 if (sp->cls4.classValid)
334 ndlp->nlp_class_sup |= FC_COS_CLASS4;
335 ndlp->nlp_maxframe =
336 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb;
337
338 /* no need to reg_login if we are already in one of these states */
2fe165b6 339 switch (ndlp->nlp_state) {
dea3101e 340 case NLP_STE_NPR_NODE:
341 if (!(ndlp->nlp_flag & NLP_NPR_ADISC))
342 break;
343 case NLP_STE_REG_LOGIN_ISSUE:
344 case NLP_STE_PRLI_ISSUE:
345 case NLP_STE_UNMAPPED_NODE:
346 case NLP_STE_MAPPED_NODE:
51ef4c26 347 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL);
c9f8735b 348 return 1;
dea3101e 349 }
350
92d7f7b0
JS		 351 if ((vport->fc_flag & FC_PT2PT) &&
352 !(vport->fc_flag & FC_PT2PT_PLOGI)) {
dea3101e 353 /* rcv'ed PLOGI decides what our NPortId will be */
2e0fef85 354 vport->fc_myDID = icmd->un.rcvels.parmRo;
dea3101e 355 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
356 if (mbox == NULL)
357 goto out;
358 lpfc_config_link(phba, mbox);
359 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
ed957684 360 mbox->vport = vport;
0b727fea 361 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
dea3101e 362 if (rc == MBX_NOT_FINISHED) {
92d7f7b0 363 mempool_free(mbox, phba->mbox_mem_pool);
dea3101e 364 goto out;
365 }
366
2e0fef85 367 lpfc_can_disctmo(vport);
dea3101e 368 }
369 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2e0fef85 370 if (!mbox)
dea3101e 371 goto out;
372
6fb120a7 373 rc = lpfc_reg_rpi(phba, vport->vpi, icmd->un.rcvels.remoteID,
92d7f7b0 374 (uint8_t *) sp, mbox, 0);
2e0fef85
JS		 375 if (rc) {
376 mempool_free(mbox, phba->mbox_mem_pool);
dea3101e 377 goto out;
378 }
379
380 /* ACC PLOGI rsp command needs to execute first,
381 * queue this mbox command to be processed later.
382 */
383 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
329f9bc7
JS		 384 /*
385 * mbox->context2 = lpfc_nlp_get(ndlp) deferred until mailbox
386 * command issued in lpfc_cmpl_els_acc().
387 */
2e0fef85
JS		 388 mbox->vport = vport;
389 spin_lock_irq(shost->host_lock);
5024ab17 390 ndlp->nlp_flag |= (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI);
2e0fef85 391 spin_unlock_irq(shost->host_lock);
dea3101e 392
33ccf8d1
JS		 393 /*
394 * If there is an outstanding PLOGI issued, abort it before
395 * sending ACC rsp for received PLOGI. If pending plogi
396 * is not canceled here, the plogi will be rejected by
397 * remote port and will be retried. On a configuration with
398 * single discovery thread, this will cause a huge delay in
399 * discovery. Also this will cause multiple state machines
400 * running in parallel for this node.
401 */
402 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) {
403 /* software abort outstanding PLOGI */
07951076 404 lpfc_els_abort(phba, ndlp);
33ccf8d1
JS		 405 }
406
858c9f6c 407 if ((vport->port_type == LPFC_NPIV_PORT &&
3de2a653 408 vport->cfg_restrict_login)) {
858c9f6c
JS		 409
410 /* In order to preserve RPIs, we want to cleanup
411 * the default RPI the firmware created to rcv
412 * this ELS request. The only way to do this is
413 * to register, then unregister the RPI.
414 */
415 spin_lock_irq(shost->host_lock);
416 ndlp->nlp_flag |= NLP_RM_DFLT_RPI;
417 spin_unlock_irq(shost->host_lock);
418 stat.un.b.lsRjtRsnCode = LSRJT_INVALID_CMD;
419 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
420 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb,
421 ndlp, mbox);
422 return 1;
423 }
51ef4c26 424 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, mbox);
c9f8735b 425 return 1;
dea3101e 426out:
427 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
428 stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE;
858c9f6c 429 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
c9f8735b 430 return 0;
dea3101e 431}
432
433static int
2e0fef85 434lpfc_rcv_padisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
dea3101e 435 struct lpfc_iocbq *cmdiocb)
436{
2e0fef85 437 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e 438 struct lpfc_dmabuf *pcmd;
2e0fef85
JS		 439 struct serv_parm *sp;
440 struct lpfc_name *pnn, *ppn;
dea3101e 441 struct ls_rjt stat;
442 ADISC *ap;
443 IOCB_t *icmd;
444 uint32_t *lp;
445 uint32_t cmd;
446
447 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
448 lp = (uint32_t *) pcmd->virt;
449
450 cmd = *lp++;
451 if (cmd == ELS_CMD_ADISC) {
452 ap = (ADISC *) lp;
453 pnn = (struct lpfc_name *) & ap->nodeName;
454 ppn = (struct lpfc_name *) & ap->portName;
455 } else {
456 sp = (struct serv_parm *) lp;
457 pnn = (struct lpfc_name *) & sp->nodeName;
458 ppn = (struct lpfc_name *) & sp->portName;
459 }
460
461 icmd = &cmdiocb->iocb;
2e0fef85 462 if (icmd->ulpStatus == 0 && lpfc_check_adisc(vport, ndlp, pnn, ppn)) {
dea3101e 463 if (cmd == ELS_CMD_ADISC) {
2e0fef85 464 lpfc_els_rsp_adisc_acc(vport, cmdiocb, ndlp);
2fe165b6 465 } else {
2e0fef85 466 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp,
51ef4c26 467 NULL);
dea3101e 468 }
c9f8735b 469 return 1;
dea3101e 470 }
471 /* Reject this request because invalid parameters */
472 stat.un.b.lsRjtRsvd0 = 0;
473 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
474 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
475 stat.un.b.vendorUnique = 0;
858c9f6c 476 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
dea3101e 477
dea3101e 478 /* 1 sec timeout */
479 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
480
2e0fef85 481 spin_lock_irq(shost->host_lock);
dea3101e 482 ndlp->nlp_flag |= NLP_DELAY_TMO;
2e0fef85 483 spin_unlock_irq(shost->host_lock);
5024ab17
JW		 484 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
485 ndlp->nlp_prev_state = ndlp->nlp_state;
2e0fef85 486 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
c9f8735b 487 return 0;
dea3101e 488}
489
490static int
2e0fef85
JS		 491lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
492 struct lpfc_iocbq *cmdiocb, uint32_t els_cmd)
dea3101e 493{
2e0fef85
JS		 494 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
495
496 /* Put ndlp in NPR state with 1 sec timeout for plogi, ACC logo */
dea3101e 497 /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary
498 * PLOGIs during LOGO storms from a device.
499 */
2e0fef85 500 spin_lock_irq(shost->host_lock);
dea3101e 501 ndlp->nlp_flag |= NLP_LOGO_ACC;
2e0fef85 502 spin_unlock_irq(shost->host_lock);
82d9a2a2 503 if (els_cmd == ELS_CMD_PRLO)
51ef4c26 504 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
82d9a2a2 505 else
51ef4c26 506 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
0c287589 507 if ((ndlp->nlp_DID == Fabric_DID) &&
6fb120a7
JS		 508 vport->port_type == LPFC_NPIV_PORT) {
509 lpfc_linkdown_port(vport);
510 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
511 spin_lock_irq(shost->host_lock);
512 ndlp->nlp_flag |= NLP_DELAY_TMO;
513 spin_unlock_irq(shost->host_lock);
dea3101e 514
6fb120a7
JS		 515 ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
516 } else if ((!(ndlp->nlp_type & NLP_FABRIC) &&
517 ((ndlp->nlp_type & NLP_FCP_TARGET) ||
518 !(ndlp->nlp_type & NLP_FCP_INITIATOR))) ||
519 (ndlp->nlp_state == NLP_STE_ADISC_ISSUE)) {
dea3101e 520 /* Only try to re-login if this is NOT a Fabric Node */
dea3101e 521 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
2e0fef85 522 spin_lock_irq(shost->host_lock);
dea3101e 523 ndlp->nlp_flag |= NLP_DELAY_TMO;
2e0fef85 524 spin_unlock_irq(shost->host_lock);
dea3101e 525
5024ab17 526 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
c9f8735b 527 }
87af33fe
JS		 528 ndlp->nlp_prev_state = ndlp->nlp_state;
529 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
dea3101e 530
2e0fef85 531 spin_lock_irq(shost->host_lock);
dea3101e 532 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2e0fef85 533 spin_unlock_irq(shost->host_lock);
dea3101e 534 /* The driver has to wait until the ACC completes before it continues
535 * processing the LOGO. The action will resume in
536 * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an
537 * unreg_login, the driver waits so the ACC does not get aborted.
538 */
c9f8735b 539 return 0;
dea3101e 540}
541
542static void
2e0fef85
JS		 543lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
544 struct lpfc_iocbq *cmdiocb)
dea3101e 545{
546 struct lpfc_dmabuf *pcmd;
547 uint32_t *lp;
548 PRLI *npr;
549 struct fc_rport *rport = ndlp->rport;
550 u32 roles;
551
552 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
553 lp = (uint32_t *) pcmd->virt;
554 npr = (PRLI *) ((uint8_t *) lp + sizeof (uint32_t));
555
556 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
557 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
92d7f7b0 558 if (npr->prliType == PRLI_FCP_TYPE) {
dea3101e 559 if (npr->initiatorFunc)
560 ndlp->nlp_type |= NLP_FCP_INITIATOR;
561 if (npr->targetFunc)
562 ndlp->nlp_type |= NLP_FCP_TARGET;
563 if (npr->Retry)
564 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
565 }
566 if (rport) {
567 /* We need to update the rport role values */
568 roles = FC_RPORT_ROLE_UNKNOWN;
569 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
570 roles |= FC_RPORT_ROLE_FCP_INITIATOR;
571 if (ndlp->nlp_type & NLP_FCP_TARGET)
572 roles |= FC_RPORT_ROLE_FCP_TARGET;
858c9f6c
JS		 573
574 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
575 "rport rolechg: role:x%x did:x%x flg:x%x",
576 roles, ndlp->nlp_DID, ndlp->nlp_flag);
577
dea3101e 578 fc_remote_port_rolechg(rport, roles);
579 }
580}
581
582static uint32_t
2e0fef85 583lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
dea3101e 584{
2e0fef85 585 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2e0fef85 586
6fb120a7 587 if (!(ndlp->nlp_flag & NLP_RPI_VALID)) {
51ef4c26
JS		 588 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
589 return 0;
590 }
591
1b32f6aa
JS		 592 if (!(vport->fc_flag & FC_PT2PT)) {
593 /* Check config parameter use-adisc or FCP-2 */
594 if ((vport->cfg_use_adisc && (vport->fc_flag & FC_RSCN_MODE)) ||
595 ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) {
596 spin_lock_irq(shost->host_lock);
597 ndlp->nlp_flag |= NLP_NPR_ADISC;
598 spin_unlock_irq(shost->host_lock);
599 return 1;
600 }
92d7f7b0
JS		 601 }
602 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
603 lpfc_unreg_rpi(vport, ndlp);
604 return 0;
dea3101e 605}
606
607static uint32_t
2e0fef85
JS		 608lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
609 void *arg, uint32_t evt)
dea3101e 610{
e8b62011 611 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
e47c9093 612 "0271 Illegal State Transition: node x%x "
e8b62011
JS		 613 "event x%x, state x%x Data: x%x x%x\n",
614 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi,
615 ndlp->nlp_flag);
c9f8735b 616 return ndlp->nlp_state;
dea3101e 617}
618
87af33fe
JS		 619static uint32_t
620lpfc_cmpl_plogi_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
621 void *arg, uint32_t evt)
622{
623 /* This transition is only legal if we previously
624 * rcv'ed a PLOGI. Since we don't want 2 discovery threads
625 * working on the same NPortID, do nothing for this thread
626 * to stop it.
627 */
628 if (!(ndlp->nlp_flag & NLP_RCV_PLOGI)) {
629 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
e47c9093 630 "0272 Illegal State Transition: node x%x "
87af33fe
JS		 631 "event x%x, state x%x Data: x%x x%x\n",
632 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi,
633 ndlp->nlp_flag);
634 }
635 return ndlp->nlp_state;
636}
637
dea3101e 638/* Start of Discovery State Machine routines */
639
640static uint32_t
2e0fef85
JS		 641lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
642 void *arg, uint32_t evt)
dea3101e 643{
644 struct lpfc_iocbq *cmdiocb;
645
646 cmdiocb = (struct lpfc_iocbq *) arg;
647
2e0fef85 648 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
c9f8735b 649 return ndlp->nlp_state;
dea3101e 650 }
c9f8735b 651 return NLP_STE_FREED_NODE;
dea3101e 652}
653
654static uint32_t
2e0fef85
JS		 655lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
656 void *arg, uint32_t evt)
dea3101e 657{
2e0fef85 658 lpfc_issue_els_logo(vport, ndlp, 0);
c9f8735b 659 return ndlp->nlp_state;
dea3101e 660}
661
662static uint32_t
2e0fef85
JS		 663lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
664 void *arg, uint32_t evt)
dea3101e 665{
2e0fef85
JS		 666 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
667 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 668
2e0fef85 669 spin_lock_irq(shost->host_lock);
dea3101e 670 ndlp->nlp_flag |= NLP_LOGO_ACC;
2e0fef85 671 spin_unlock_irq(shost->host_lock);
51ef4c26 672 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
dea3101e 673
c9f8735b 674 return ndlp->nlp_state;
dea3101e 675}
676
677static uint32_t
2e0fef85
JS		 678lpfc_cmpl_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
679 void *arg, uint32_t evt)
dea3101e 680{
c9f8735b 681 return NLP_STE_FREED_NODE;
dea3101e 682}
683
684static uint32_t
2e0fef85
JS		 685lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
686 void *arg, uint32_t evt)
dea3101e 687{
c9f8735b 688 return NLP_STE_FREED_NODE;
dea3101e 689}
690
691static uint32_t
2e0fef85 692lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
dea3101e 693 void *arg, uint32_t evt)
694{
0d2b6b83 695 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2e0fef85 696 struct lpfc_hba *phba = vport->phba;
dea3101e 697 struct lpfc_iocbq *cmdiocb = arg;
2e0fef85
JS		 698 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
699 uint32_t *lp = (uint32_t *) pcmd->virt;
700 struct serv_parm *sp = (struct serv_parm *) (lp + 1);
dea3101e 701 struct ls_rjt stat;
702 int port_cmp;
703
dea3101e 704 memset(&stat, 0, sizeof (struct ls_rjt));
705
706 /* For a PLOGI, we only accept if our portname is less
707 * than the remote portname.
708 */
709 phba->fc_stat.elsLogiCol++;
2e0fef85 710 port_cmp = memcmp(&vport->fc_portname, &sp->portName,
92d7f7b0 711 sizeof(struct lpfc_name));
dea3101e 712
713 if (port_cmp >= 0) {
714 /* Reject this request because the remote node will accept
715 ours */
716 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
717 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS;
858c9f6c
JS		 718 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
719 NULL);
2fe165b6 720 } else {
0d2b6b83
JS		 721 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb) &&
722 (ndlp->nlp_flag & NLP_NPR_2B_DISC) &&
723 (vport->num_disc_nodes)) {
724 spin_lock_irq(shost->host_lock);
725 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
726 spin_unlock_irq(shost->host_lock);
727 /* Check if there are more PLOGIs to be sent */
728 lpfc_more_plogi(vport);
729 if (vport->num_disc_nodes == 0) {
730 spin_lock_irq(shost->host_lock);
731 vport->fc_flag &= ~FC_NDISC_ACTIVE;
732 spin_unlock_irq(shost->host_lock);
733 lpfc_can_disctmo(vport);
734 lpfc_end_rscn(vport);
735 }
736 }
2e0fef85 737 } /* If our portname was less */
dea3101e 738
c9f8735b
JW		 739 return ndlp->nlp_state;
740}
741
92d7f7b0
JS		 742static uint32_t
743lpfc_rcv_prli_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
744 void *arg, uint32_t evt)
745{
746 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
747 struct ls_rjt stat;
748
749 memset(&stat, 0, sizeof (struct ls_rjt));
750 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY;
751 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
858c9f6c 752 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
92d7f7b0
JS		 753 return ndlp->nlp_state;
754}
755
c9f8735b 756static uint32_t
2e0fef85
JS		 757lpfc_rcv_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
758 void *arg, uint32_t evt)
c9f8735b 759{
2e0fef85 760 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
c9f8735b 761
92d7f7b0 762 /* software abort outstanding PLOGI */
2e0fef85 763 lpfc_els_abort(vport->phba, ndlp);
c9f8735b 764
2e0fef85 765 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
c9f8735b 766 return ndlp->nlp_state;
dea3101e 767}
768
769static uint32_t
2e0fef85
JS		 770lpfc_rcv_els_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
771 void *arg, uint32_t evt)
dea3101e 772{
2e0fef85
JS		 773 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
774 struct lpfc_hba *phba = vport->phba;
775 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 776
777 /* software abort outstanding PLOGI */
07951076 778 lpfc_els_abort(phba, ndlp);
dea3101e 779
780 if (evt == NLP_EVT_RCV_LOGO) {
51ef4c26 781 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
2fe165b6 782 } else {
2e0fef85 783 lpfc_issue_els_logo(vport, ndlp, 0);
dea3101e 784 }
785
2e0fef85 786 /* Put ndlp in npr state set plogi timer for 1 sec */
5024ab17 787 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
2e0fef85 788 spin_lock_irq(shost->host_lock);
5024ab17 789 ndlp->nlp_flag |= NLP_DELAY_TMO;
2e0fef85 790 spin_unlock_irq(shost->host_lock);
5024ab17
JW		 791 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
792 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE;
2e0fef85 793 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
dea3101e 794
c9f8735b 795 return ndlp->nlp_state;
dea3101e 796}
797
798static uint32_t
2e0fef85
JS		 799lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport,
800 struct lpfc_nodelist *ndlp,
801 void *arg,
dea3101e 802 uint32_t evt)
803{
2e0fef85 804 struct lpfc_hba *phba = vport->phba;
0ff10d46 805 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2e0fef85 806 struct lpfc_iocbq *cmdiocb, *rspiocb;
14691150 807 struct lpfc_dmabuf *pcmd, *prsp, *mp;
dea3101e 808 uint32_t *lp;
809 IOCB_t *irsp;
810 struct serv_parm *sp;
811 LPFC_MBOXQ_t *mbox;
812
813 cmdiocb = (struct lpfc_iocbq *) arg;
814 rspiocb = cmdiocb->context_un.rsp_iocb;
815
816 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
5024ab17 817 /* Recovery from PLOGI collision logic */
c9f8735b 818 return ndlp->nlp_state;
dea3101e 819 }
820
821 irsp = &rspiocb->iocb;
822
823 if (irsp->ulpStatus)
824 goto out;
825
826 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
827
2e0fef85 828 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
dea3101e 829
2e0fef85 830 lp = (uint32_t *) prsp->virt;
dea3101e 831 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
58da1ffb
JS		 832
833 /* Some switches have FDMI servers returning 0 for WWN */
834 if ((ndlp->nlp_DID != FDMI_DID) &&
835 (wwn_to_u64(sp->portName.u.wwn) == 0 ||
836 wwn_to_u64(sp->nodeName.u.wwn) == 0)) {
a8adb832
JS		 837 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
838 "0142 PLOGI RSP: Invalid WWN.\n");
839 goto out;
840 }
341af102 841 if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0))
dea3101e 842 goto out;
dea3101e 843 /* PLOGI chkparm OK */
e8b62011
JS		 844 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
845 "0121 PLOGI chkparm OK Data: x%x x%x x%x x%x\n",
846 ndlp->nlp_DID, ndlp->nlp_state,
847 ndlp->nlp_flag, ndlp->nlp_rpi);
3de2a653 848 if (vport->cfg_fcp_class == 2 && (sp->cls2.classValid))
dea3101e 849 ndlp->nlp_fcp_info |= CLASS2;
2e0fef85 850 else
dea3101e 851 ndlp->nlp_fcp_info |= CLASS3;
2e0fef85 852
dea3101e 853 ndlp->nlp_class_sup = 0;
854 if (sp->cls1.classValid)
855 ndlp->nlp_class_sup |= FC_COS_CLASS1;
856 if (sp->cls2.classValid)
857 ndlp->nlp_class_sup |= FC_COS_CLASS2;
858 if (sp->cls3.classValid)
859 ndlp->nlp_class_sup |= FC_COS_CLASS3;
860 if (sp->cls4.classValid)
861 ndlp->nlp_class_sup |= FC_COS_CLASS4;
862 ndlp->nlp_maxframe =
2e0fef85 863 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb;
dea3101e 864
2e0fef85 865 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
92d7f7b0 866 if (!mbox) {
e8b62011
JS		 867 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
868 "0133 PLOGI: no memory for reg_login "
92d7f7b0 869 "Data: x%x x%x x%x x%x\n",
92d7f7b0
JS		 870 ndlp->nlp_DID, ndlp->nlp_state,
871 ndlp->nlp_flag, ndlp->nlp_rpi);
dea3101e 872 goto out;
92d7f7b0 873 }
dea3101e 874
2e0fef85
JS		 875 lpfc_unreg_rpi(vport, ndlp);
876
6fb120a7 877 if (lpfc_reg_rpi(phba, vport->vpi, irsp->un.elsreq64.remoteID,
92d7f7b0 878 (uint8_t *) sp, mbox, 0) == 0) {
2fe165b6 879 switch (ndlp->nlp_DID) {
dea3101e 880 case NameServer_DID:
de0c5b32 881 mbox->mbox_cmpl = lpfc_mbx_cmpl_ns_reg_login;
dea3101e 882 break;
883 case FDMI_DID:
de0c5b32 884 mbox->mbox_cmpl = lpfc_mbx_cmpl_fdmi_reg_login;
dea3101e 885 break;
886 default:
de0c5b32 887 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
dea3101e 888 }
329f9bc7 889 mbox->context2 = lpfc_nlp_get(ndlp);
2e0fef85 890 mbox->vport = vport;
0b727fea 891 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
dea3101e 892 != MBX_NOT_FINISHED) {
2e0fef85
JS		 893 lpfc_nlp_set_state(vport, ndlp,
894 NLP_STE_REG_LOGIN_ISSUE);
c9f8735b 895 return ndlp->nlp_state;
dea3101e 896 }
fa4066b6
JS		 897 /* decrement node reference count to the failed mbox
898 * command
899 */
329f9bc7 900 lpfc_nlp_put(ndlp);
92d7f7b0 901 mp = (struct lpfc_dmabuf *) mbox->context1;
14691150
JS		 902 lpfc_mbuf_free(phba, mp->virt, mp->phys);
903 kfree(mp);
dea3101e 904 mempool_free(mbox, phba->mbox_mem_pool);
92d7f7b0 905
e8b62011
JS		 906 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
907 "0134 PLOGI: cannot issue reg_login "
908 "Data: x%x x%x x%x x%x\n",
909 ndlp->nlp_DID, ndlp->nlp_state,
910 ndlp->nlp_flag, ndlp->nlp_rpi);
dea3101e 911 } else {
912 mempool_free(mbox, phba->mbox_mem_pool);
92d7f7b0 913
e8b62011
JS		 914 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
915 "0135 PLOGI: cannot format reg_login "
916 "Data: x%x x%x x%x x%x\n",
917 ndlp->nlp_DID, ndlp->nlp_state,
918 ndlp->nlp_flag, ndlp->nlp_rpi);
dea3101e 919 }
920
921
92d7f7b0
JS		 922out:
923 if (ndlp->nlp_DID == NameServer_DID) {
924 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
e8b62011
JS		 925 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
926 "0261 Cannot Register NameServer login\n");
92d7f7b0
JS		 927 }
928
0ff10d46 929 spin_lock_irq(shost->host_lock);
a8adb832 930 ndlp->nlp_flag |= NLP_DEFER_RM;
0ff10d46 931 spin_unlock_irq(shost->host_lock);
c9f8735b 932 return NLP_STE_FREED_NODE;
dea3101e 933}
934
0ff10d46
JS		 935static uint32_t
936lpfc_cmpl_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
937 void *arg, uint32_t evt)
938{
939 return ndlp->nlp_state;
940}
941
942static uint32_t
943lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport *vport,
944 struct lpfc_nodelist *ndlp, void *arg, uint32_t evt)
945{
946 return ndlp->nlp_state;
947}
948
dea3101e 949static uint32_t
2e0fef85
JS		 950lpfc_device_rm_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
951 void *arg, uint32_t evt)
dea3101e 952{
2e0fef85
JS		 953 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
954
955 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
956 spin_lock_irq(shost->host_lock);
a0f9b48d 957 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
2e0fef85 958 spin_unlock_irq(shost->host_lock);
a0f9b48d 959 return ndlp->nlp_state;
2e0fef85 960 } else {
a0f9b48d 961 /* software abort outstanding PLOGI */
2e0fef85 962 lpfc_els_abort(vport->phba, ndlp);
dea3101e 963
2e0fef85 964 lpfc_drop_node(vport, ndlp);
a0f9b48d
JS		 965 return NLP_STE_FREED_NODE;
966 }
dea3101e 967}
968
969static uint32_t
2e0fef85
JS		 970lpfc_device_recov_plogi_issue(struct lpfc_vport *vport,
971 struct lpfc_nodelist *ndlp,
972 void *arg,
973 uint32_t evt)
dea3101e 974{
2e0fef85
JS		 975 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
976 struct lpfc_hba *phba = vport->phba;
977
92d7f7b0
JS		 978 /* Don't do anything that will mess up processing of the
979 * previous RSCN.
980 */
981 if (vport->fc_flag & FC_RSCN_DEFERRED)
982 return ndlp->nlp_state;
983
dea3101e 984 /* software abort outstanding PLOGI */
07951076 985 lpfc_els_abort(phba, ndlp);
dea3101e 986
5024ab17 987 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE;
2e0fef85 988 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
92d7f7b0 989 spin_lock_irq(shost->host_lock);
a0f9b48d 990 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2e0fef85 991 spin_unlock_irq(shost->host_lock);
dea3101e 992
c9f8735b 993 return ndlp->nlp_state;
dea3101e 994}
995
996static uint32_t
2e0fef85
JS		 997lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
998 void *arg, uint32_t evt)
dea3101e 999{
0d2b6b83 1000 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2e0fef85 1001 struct lpfc_hba *phba = vport->phba;
dea3101e 1002 struct lpfc_iocbq *cmdiocb;
1003
1004 /* software abort outstanding ADISC */
07951076 1005 lpfc_els_abort(phba, ndlp);
dea3101e 1006
1007 cmdiocb = (struct lpfc_iocbq *) arg;
1008
0d2b6b83
JS		 1009 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
1010 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1011 spin_lock_irq(shost->host_lock);
1012 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1013 spin_unlock_irq(shost->host_lock);
90160e01 1014 if (vport->num_disc_nodes)
0d2b6b83 1015 lpfc_more_adisc(vport);
0d2b6b83
JS		 1016 }
1017 return ndlp->nlp_state;
1018 }
5024ab17 1019 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
2e0fef85
JS		 1020 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
1021 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
dea3101e 1022
c9f8735b 1023 return ndlp->nlp_state;
dea3101e 1024}
1025
1026static uint32_t
2e0fef85
JS		 1027lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1028 void *arg, uint32_t evt)
dea3101e 1029{
2e0fef85 1030 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1031
2e0fef85 1032 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
c9f8735b 1033 return ndlp->nlp_state;
dea3101e 1034}
1035
1036static uint32_t
2e0fef85
JS		 1037lpfc_rcv_logo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1038 void *arg, uint32_t evt)
dea3101e 1039{
2e0fef85 1040 struct lpfc_hba *phba = vport->phba;
dea3101e 1041 struct lpfc_iocbq *cmdiocb;
1042
1043 cmdiocb = (struct lpfc_iocbq *) arg;
1044
1045 /* software abort outstanding ADISC */
07951076 1046 lpfc_els_abort(phba, ndlp);
dea3101e 1047
2e0fef85 1048 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
c9f8735b 1049 return ndlp->nlp_state;
dea3101e 1050}
1051
1052static uint32_t
2e0fef85
JS		 1053lpfc_rcv_padisc_adisc_issue(struct lpfc_vport *vport,
1054 struct lpfc_nodelist *ndlp,
1055 void *arg, uint32_t evt)
dea3101e 1056{
1057 struct lpfc_iocbq *cmdiocb;
1058
1059 cmdiocb = (struct lpfc_iocbq *) arg;
1060
2e0fef85 1061 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
c9f8735b 1062 return ndlp->nlp_state;
dea3101e 1063}
1064
1065static uint32_t
2e0fef85
JS		 1066lpfc_rcv_prlo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1067 void *arg, uint32_t evt)
dea3101e 1068{
1069 struct lpfc_iocbq *cmdiocb;
1070
1071 cmdiocb = (struct lpfc_iocbq *) arg;
1072
1073 /* Treat like rcv logo */
2e0fef85 1074 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO);
c9f8735b 1075 return ndlp->nlp_state;
dea3101e 1076}
1077
1078static uint32_t
2e0fef85
JS		 1079lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport,
1080 struct lpfc_nodelist *ndlp,
1081 void *arg, uint32_t evt)
dea3101e 1082{
2e0fef85
JS		 1083 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1084 struct lpfc_hba *phba = vport->phba;
dea3101e 1085 struct lpfc_iocbq *cmdiocb, *rspiocb;
1086 IOCB_t *irsp;
1087 ADISC *ap;
6fb120a7 1088 int rc;
dea3101e 1089
1090 cmdiocb = (struct lpfc_iocbq *) arg;
1091 rspiocb = cmdiocb->context_un.rsp_iocb;
1092
1093 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
1094 irsp = &rspiocb->iocb;
1095
1096 if ((irsp->ulpStatus) ||
92d7f7b0 1097 (!lpfc_check_adisc(vport, ndlp, &ap->nodeName, &ap->portName))) {
dea3101e 1098 /* 1 sec timeout */
1099 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
2e0fef85 1100 spin_lock_irq(shost->host_lock);
dea3101e 1101 ndlp->nlp_flag |= NLP_DELAY_TMO;
2e0fef85 1102 spin_unlock_irq(shost->host_lock);
5024ab17 1103 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
dea3101e 1104
2e0fef85
JS		 1105 memset(&ndlp->nlp_nodename, 0, sizeof(struct lpfc_name));
1106 memset(&ndlp->nlp_portname, 0, sizeof(struct lpfc_name));
dea3101e 1107
5024ab17 1108 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
2e0fef85
JS		 1109 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1110 lpfc_unreg_rpi(vport, ndlp);
c9f8735b 1111 return ndlp->nlp_state;
dea3101e 1112 }
5024ab17 1113
6fb120a7
JS		 1114 if (phba->sli_rev == LPFC_SLI_REV4) {
1115 rc = lpfc_sli4_resume_rpi(ndlp);
1116 if (rc) {
1117 /* Stay in state and retry. */
1118 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1119 return ndlp->nlp_state;
1120 }
1121 }
1122
2501322e 1123 if (ndlp->nlp_type & NLP_FCP_TARGET) {
5024ab17 1124 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
2e0fef85 1125 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
2501322e 1126 } else {
5024ab17 1127 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
2e0fef85 1128 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
2501322e 1129 }
6fb120a7 1130
c9f8735b 1131 return ndlp->nlp_state;
dea3101e 1132}
1133
1134static uint32_t
2e0fef85
JS		 1135lpfc_device_rm_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1136 void *arg, uint32_t evt)
dea3101e 1137{
2e0fef85
JS		 1138 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1139
1140 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1141 spin_lock_irq(shost->host_lock);
a0f9b48d 1142 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
2e0fef85 1143 spin_unlock_irq(shost->host_lock);
a0f9b48d 1144 return ndlp->nlp_state;
2e0fef85 1145 } else {
a0f9b48d 1146 /* software abort outstanding ADISC */
2e0fef85 1147 lpfc_els_abort(vport->phba, ndlp);
dea3101e 1148
2e0fef85 1149 lpfc_drop_node(vport, ndlp);
a0f9b48d
JS		 1150 return NLP_STE_FREED_NODE;
1151 }
dea3101e 1152}
1153
1154static uint32_t
2e0fef85
JS		 1155lpfc_device_recov_adisc_issue(struct lpfc_vport *vport,
1156 struct lpfc_nodelist *ndlp,
1157 void *arg,
1158 uint32_t evt)
dea3101e 1159{
2e0fef85
JS		 1160 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1161 struct lpfc_hba *phba = vport->phba;
1162
92d7f7b0
JS		 1163 /* Don't do anything that will mess up processing of the
1164 * previous RSCN.
1165 */
1166 if (vport->fc_flag & FC_RSCN_DEFERRED)
1167 return ndlp->nlp_state;
1168
dea3101e 1169 /* software abort outstanding ADISC */
07951076 1170 lpfc_els_abort(phba, ndlp);
dea3101e 1171
5024ab17 1172 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
2e0fef85
JS		 1173 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1174 spin_lock_irq(shost->host_lock);
a0f9b48d 1175 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2e0fef85 1176 spin_unlock_irq(shost->host_lock);
92d7f7b0 1177 lpfc_disc_set_adisc(vport, ndlp);
c9f8735b 1178 return ndlp->nlp_state;
dea3101e 1179}
1180
1181static uint32_t
2e0fef85
JS		 1182lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport *vport,
1183 struct lpfc_nodelist *ndlp,
1184 void *arg,
dea3101e 1185 uint32_t evt)
1186{
2e0fef85 1187 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1188
2e0fef85 1189 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
c9f8735b 1190 return ndlp->nlp_state;
dea3101e 1191}
1192
1193static uint32_t
2e0fef85
JS		 1194lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport,
1195 struct lpfc_nodelist *ndlp,
1196 void *arg,
dea3101e 1197 uint32_t evt)
1198{
2e0fef85 1199 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1200
2e0fef85 1201 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
c9f8735b 1202 return ndlp->nlp_state;
dea3101e 1203}
1204
1205static uint32_t
2e0fef85
JS		 1206lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport,
1207 struct lpfc_nodelist *ndlp,
1208 void *arg,
dea3101e 1209 uint32_t evt)
1210{
2e0fef85
JS		 1211 struct lpfc_hba *phba = vport->phba;
1212 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
7054a606
JS		 1213 LPFC_MBOXQ_t *mb;
1214 LPFC_MBOXQ_t *nextmb;
1215 struct lpfc_dmabuf *mp;
dea3101e 1216
1217 cmdiocb = (struct lpfc_iocbq *) arg;
1218
7054a606
JS		 1219 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
1220 if ((mb = phba->sli.mbox_active)) {
04c68496 1221 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
7054a606 1222 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
92d7f7b0 1223 lpfc_nlp_put(ndlp);
7054a606
JS		 1224 mb->context2 = NULL;
1225 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1226 }
1227 }
1228
2e0fef85 1229 spin_lock_irq(&phba->hbalock);
7054a606 1230 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
04c68496 1231 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
7054a606 1232 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
5ffc266e
JS		 1233 if (phba->sli_rev == LPFC_SLI_REV4) {
1234 spin_unlock_irq(&phba->hbalock);
1235 lpfc_sli4_free_rpi(phba,
1236 mb->u.mb.un.varRegLogin.rpi);
1237 spin_lock_irq(&phba->hbalock);
1238 }
7054a606
JS		 1239 mp = (struct lpfc_dmabuf *) (mb->context1);
1240 if (mp) {
98c9ea5c 1241 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
7054a606
JS		 1242 kfree(mp);
1243 }
92d7f7b0 1244 lpfc_nlp_put(ndlp);
7054a606 1245 list_del(&mb->list);
5ffc266e 1246 phba->sli.mboxq_cnt--;
7054a606
JS		 1247 mempool_free(mb, phba->mbox_mem_pool);
1248 }
1249 }
2e0fef85 1250 spin_unlock_irq(&phba->hbalock);
7054a606 1251
2e0fef85 1252 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
c9f8735b 1253 return ndlp->nlp_state;
dea3101e 1254}
1255
1256static uint32_t
2e0fef85
JS		 1257lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport *vport,
1258 struct lpfc_nodelist *ndlp,
1259 void *arg,
dea3101e 1260 uint32_t evt)
1261{
2e0fef85 1262 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1263
2e0fef85 1264 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
c9f8735b 1265 return ndlp->nlp_state;
dea3101e 1266}
1267
1268static uint32_t
2e0fef85
JS		 1269lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport *vport,
1270 struct lpfc_nodelist *ndlp,
1271 void *arg,
dea3101e 1272 uint32_t evt)
1273{
1274 struct lpfc_iocbq *cmdiocb;
1275
1276 cmdiocb = (struct lpfc_iocbq *) arg;
51ef4c26 1277 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
c9f8735b 1278 return ndlp->nlp_state;
dea3101e 1279}
1280
1281static uint32_t
2e0fef85
JS		 1282lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport,
1283 struct lpfc_nodelist *ndlp,
1284 void *arg,
1285 uint32_t evt)
dea3101e 1286{
2e0fef85 1287 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2e0fef85 1288 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
04c68496 1289 MAILBOX_t *mb = &pmb->u.mb;
2e0fef85 1290 uint32_t did = mb->un.varWords[1];
dea3101e 1291
dea3101e 1292 if (mb->mbxStatus) {
1293 /* RegLogin failed */
e8b62011
JS		 1294 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
1295 "0246 RegLogin failed Data: x%x x%x x%x\n",
2e0fef85 1296 did, mb->mbxStatus, vport->port_state);
d0e56dad
JS		 1297 /*
1298 * If RegLogin failed due to lack of HBA resources do not
1299 * retry discovery.
1300 */
1301 if (mb->mbxStatus == MBXERR_RPI_FULL) {
87af33fe
JS		 1302 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1303 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
d0e56dad
JS		 1304 return ndlp->nlp_state;
1305 }
1306
2e0fef85 1307 /* Put ndlp in npr state set plogi timer for 1 sec */
dea3101e 1308 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
2e0fef85 1309 spin_lock_irq(shost->host_lock);
dea3101e 1310 ndlp->nlp_flag |= NLP_DELAY_TMO;
2e0fef85 1311 spin_unlock_irq(shost->host_lock);
5024ab17 1312 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
dea3101e 1313
2e0fef85 1314 lpfc_issue_els_logo(vport, ndlp, 0);
5024ab17 1315 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
2e0fef85 1316 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
c9f8735b 1317 return ndlp->nlp_state;
dea3101e 1318 }
1319
dea3101e 1320 ndlp->nlp_rpi = mb->un.varWords[0];
6fb120a7 1321 ndlp->nlp_flag |= NLP_RPI_VALID;
dea3101e 1322
1323 /* Only if we are not a fabric nport do we issue PRLI */
1324 if (!(ndlp->nlp_type & NLP_FABRIC)) {
5024ab17 1325 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
2e0fef85
JS		 1326 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
1327 lpfc_issue_els_prli(vport, ndlp, 0);
dea3101e 1328 } else {
5024ab17 1329 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
2e0fef85 1330 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
dea3101e 1331 }
c9f8735b 1332 return ndlp->nlp_state;
dea3101e 1333}
1334
1335static uint32_t
2e0fef85
JS		 1336lpfc_device_rm_reglogin_issue(struct lpfc_vport *vport,
1337 struct lpfc_nodelist *ndlp,
1338 void *arg,
dea3101e 1339 uint32_t evt)
1340{
2e0fef85
JS		 1341 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1342
1343 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1344 spin_lock_irq(shost->host_lock);
a0f9b48d 1345 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
2e0fef85 1346 spin_unlock_irq(shost->host_lock);
a0f9b48d 1347 return ndlp->nlp_state;
2e0fef85
JS		 1348 } else {
1349 lpfc_drop_node(vport, ndlp);
a0f9b48d
JS		 1350 return NLP_STE_FREED_NODE;
1351 }
dea3101e 1352}
1353
1354static uint32_t
2e0fef85
JS		 1355lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport,
1356 struct lpfc_nodelist *ndlp,
1357 void *arg,
1358 uint32_t evt)
dea3101e 1359{
2e0fef85
JS		 1360 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1361
92d7f7b0
JS		 1362 /* Don't do anything that will mess up processing of the
1363 * previous RSCN.
1364 */
1365 if (vport->fc_flag & FC_RSCN_DEFERRED)
1366 return ndlp->nlp_state;
1367
5024ab17 1368 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
2e0fef85
JS		 1369 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1370 spin_lock_irq(shost->host_lock);
a0f9b48d 1371 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2e0fef85 1372 spin_unlock_irq(shost->host_lock);
92d7f7b0 1373 lpfc_disc_set_adisc(vport, ndlp);
c9f8735b 1374 return ndlp->nlp_state;
dea3101e 1375}
1376
1377static uint32_t
2e0fef85
JS		 1378lpfc_rcv_plogi_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1379 void *arg, uint32_t evt)
dea3101e 1380{
1381 struct lpfc_iocbq *cmdiocb;
1382
1383 cmdiocb = (struct lpfc_iocbq *) arg;
1384
2e0fef85 1385 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
c9f8735b 1386 return ndlp->nlp_state;
dea3101e 1387}
1388
1389static uint32_t
2e0fef85
JS		 1390lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1391 void *arg, uint32_t evt)
dea3101e 1392{
2e0fef85 1393 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1394
2e0fef85 1395 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
c9f8735b 1396 return ndlp->nlp_state;
dea3101e 1397}
1398
1399static uint32_t
2e0fef85
JS		 1400lpfc_rcv_logo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1401 void *arg, uint32_t evt)
dea3101e 1402{
2e0fef85 1403 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1404
1405 /* Software abort outstanding PRLI before sending acc */
2e0fef85 1406 lpfc_els_abort(vport->phba, ndlp);
dea3101e 1407
2e0fef85 1408 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
c9f8735b 1409 return ndlp->nlp_state;
dea3101e 1410}
1411
1412static uint32_t
2e0fef85
JS		 1413lpfc_rcv_padisc_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1414 void *arg, uint32_t evt)
dea3101e 1415{
2e0fef85 1416 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1417
2e0fef85 1418 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
c9f8735b 1419 return ndlp->nlp_state;
dea3101e 1420}
1421
1422/* This routine is envoked when we rcv a PRLO request from a nport
1423 * we are logged into. We should send back a PRLO rsp setting the
1424 * appropriate bits.
1425 * NEXT STATE = PRLI_ISSUE
1426 */
1427static uint32_t
2e0fef85
JS		 1428lpfc_rcv_prlo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1429 void *arg, uint32_t evt)
dea3101e 1430{
2e0fef85 1431 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1432
51ef4c26 1433 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
c9f8735b 1434 return ndlp->nlp_state;
dea3101e 1435}
1436
1437static uint32_t
2e0fef85
JS		 1438lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1439 void *arg, uint32_t evt)
dea3101e 1440{
92d7f7b0 1441 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e 1442 struct lpfc_iocbq *cmdiocb, *rspiocb;
2e0fef85 1443 struct lpfc_hba *phba = vport->phba;
dea3101e 1444 IOCB_t *irsp;
1445 PRLI *npr;
1446
1447 cmdiocb = (struct lpfc_iocbq *) arg;
1448 rspiocb = cmdiocb->context_un.rsp_iocb;
1449 npr = (PRLI *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
1450
1451 irsp = &rspiocb->iocb;
1452 if (irsp->ulpStatus) {
858c9f6c 1453 if ((vport->port_type == LPFC_NPIV_PORT) &&
3de2a653 1454 vport->cfg_restrict_login) {
858c9f6c
JS		 1455 goto out;
1456 }
5024ab17 1457 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
2e0fef85 1458 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
c9f8735b 1459 return ndlp->nlp_state;
dea3101e 1460 }
1461
1462 /* Check out PRLI rsp */
1463 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
1464 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
1465 if ((npr->acceptRspCode == PRLI_REQ_EXECUTED) &&
1466 (npr->prliType == PRLI_FCP_TYPE)) {
1467 if (npr->initiatorFunc)
1468 ndlp->nlp_type |= NLP_FCP_INITIATOR;
1469 if (npr->targetFunc)
1470 ndlp->nlp_type |= NLP_FCP_TARGET;
1471 if (npr->Retry)
1472 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
1473 }
92d7f7b0
JS		 1474 if (!(ndlp->nlp_type & NLP_FCP_TARGET) &&
1475 (vport->port_type == LPFC_NPIV_PORT) &&
3de2a653 1476 vport->cfg_restrict_login) {
858c9f6c 1477out:
92d7f7b0
JS		 1478 spin_lock_irq(shost->host_lock);
1479 ndlp->nlp_flag |= NLP_TARGET_REMOVE;
1480 spin_unlock_irq(shost->host_lock);
1481 lpfc_issue_els_logo(vport, ndlp, 0);
1482
1483 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
87af33fe 1484 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
92d7f7b0
JS		 1485 return ndlp->nlp_state;
1486 }
dea3101e 1487
5024ab17 1488 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
92d7f7b0
JS		 1489 if (ndlp->nlp_type & NLP_FCP_TARGET)
1490 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
1491 else
1492 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
c9f8735b 1493 return ndlp->nlp_state;
dea3101e 1494}
1495
1496/*! lpfc_device_rm_prli_issue
92d7f7b0
JS		 1497 *
1498 * \pre
1499 * \post
1500 * \param phba
1501 * \param ndlp
1502 * \param arg
1503 * \param evt
1504 * \return uint32_t
1505 *
1506 * \b Description:
1507 * This routine is envoked when we a request to remove a nport we are in the
1508 * process of PRLIing. We should software abort outstanding prli, unreg
1509 * login, send a logout. We will change node state to UNUSED_NODE, put it
1510 * on plogi list so it can be freed when LOGO completes.
1511 *
1512 */
1513
dea3101e 1514static uint32_t
2e0fef85
JS		 1515lpfc_device_rm_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1516 void *arg, uint32_t evt)
dea3101e 1517{
2e0fef85
JS		 1518 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1519
1520 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1521 spin_lock_irq(shost->host_lock);
a0f9b48d 1522 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
2e0fef85 1523 spin_unlock_irq(shost->host_lock);
a0f9b48d 1524 return ndlp->nlp_state;
2e0fef85 1525 } else {
a0f9b48d 1526 /* software abort outstanding PLOGI */
2e0fef85 1527 lpfc_els_abort(vport->phba, ndlp);
dea3101e 1528
2e0fef85 1529 lpfc_drop_node(vport, ndlp);
a0f9b48d
JS		 1530 return NLP_STE_FREED_NODE;
1531 }
dea3101e 1532}
1533
1534
1535/*! lpfc_device_recov_prli_issue
92d7f7b0
JS		 1536 *
1537 * \pre
1538 * \post
1539 * \param phba
1540 * \param ndlp
1541 * \param arg
1542 * \param evt
1543 * \return uint32_t
1544 *
1545 * \b Description:
1546 * The routine is envoked when the state of a device is unknown, like
1547 * during a link down. We should remove the nodelist entry from the
1548 * unmapped list, issue a UNREG_LOGIN, do a software abort of the
1549 * outstanding PRLI command, then free the node entry.
1550 */
dea3101e 1551static uint32_t
2e0fef85
JS		 1552lpfc_device_recov_prli_issue(struct lpfc_vport *vport,
1553 struct lpfc_nodelist *ndlp,
1554 void *arg,
1555 uint32_t evt)
dea3101e 1556{
2e0fef85
JS		 1557 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1558 struct lpfc_hba *phba = vport->phba;
1559
92d7f7b0
JS		 1560 /* Don't do anything that will mess up processing of the
1561 * previous RSCN.
1562 */
1563 if (vport->fc_flag & FC_RSCN_DEFERRED)
1564 return ndlp->nlp_state;
1565
dea3101e 1566 /* software abort outstanding PRLI */
07951076 1567 lpfc_els_abort(phba, ndlp);
dea3101e 1568
5024ab17 1569 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
2e0fef85
JS		 1570 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1571 spin_lock_irq(shost->host_lock);
a0f9b48d 1572 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2e0fef85 1573 spin_unlock_irq(shost->host_lock);
92d7f7b0 1574 lpfc_disc_set_adisc(vport, ndlp);
c9f8735b 1575 return ndlp->nlp_state;
dea3101e 1576}
1577
1578static uint32_t
2e0fef85
JS		 1579lpfc_rcv_plogi_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1580 void *arg, uint32_t evt)
dea3101e 1581{
2e0fef85 1582 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1583
2e0fef85 1584 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
c9f8735b 1585 return ndlp->nlp_state;
dea3101e 1586}
1587
1588static uint32_t
2e0fef85
JS		 1589lpfc_rcv_prli_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1590 void *arg, uint32_t evt)
dea3101e 1591{
2e0fef85 1592 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1593
2e0fef85
JS		 1594 lpfc_rcv_prli(vport, ndlp, cmdiocb);
1595 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
c9f8735b 1596 return ndlp->nlp_state;
dea3101e 1597}
1598
1599static uint32_t
2e0fef85
JS		 1600lpfc_rcv_logo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1601 void *arg, uint32_t evt)
dea3101e 1602{
2e0fef85 1603 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1604
2e0fef85 1605 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
c9f8735b 1606 return ndlp->nlp_state;
dea3101e 1607}
1608
1609static uint32_t
2e0fef85
JS		 1610lpfc_rcv_padisc_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1611 void *arg, uint32_t evt)
dea3101e 1612{
2e0fef85 1613 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1614
2e0fef85 1615 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
c9f8735b 1616 return ndlp->nlp_state;
dea3101e 1617}
1618
1619static uint32_t
2e0fef85
JS		 1620lpfc_rcv_prlo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1621 void *arg, uint32_t evt)
dea3101e 1622{
2e0fef85 1623 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1624
51ef4c26 1625 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
c9f8735b 1626 return ndlp->nlp_state;
dea3101e 1627}
1628
1629static uint32_t
2e0fef85
JS		 1630lpfc_device_recov_unmap_node(struct lpfc_vport *vport,
1631 struct lpfc_nodelist *ndlp,
1632 void *arg,
1633 uint32_t evt)
dea3101e 1634{
2e0fef85
JS		 1635 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1636
5024ab17 1637 ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE;
2e0fef85
JS		 1638 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1639 spin_lock_irq(shost->host_lock);
a0f9b48d 1640 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2e0fef85
JS		 1641 spin_unlock_irq(shost->host_lock);
1642 lpfc_disc_set_adisc(vport, ndlp);
dea3101e 1643
c9f8735b 1644 return ndlp->nlp_state;
dea3101e 1645}
1646
1647static uint32_t
2e0fef85
JS		 1648lpfc_rcv_plogi_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1649 void *arg, uint32_t evt)
dea3101e 1650{
2e0fef85 1651 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1652
2e0fef85 1653 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
c9f8735b 1654 return ndlp->nlp_state;
dea3101e 1655}
1656
1657static uint32_t
2e0fef85
JS		 1658lpfc_rcv_prli_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1659 void *arg, uint32_t evt)
dea3101e 1660{
2e0fef85 1661 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1662
2e0fef85 1663 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
c9f8735b 1664 return ndlp->nlp_state;
dea3101e 1665}
1666
1667static uint32_t
2e0fef85
JS		 1668lpfc_rcv_logo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1669 void *arg, uint32_t evt)
dea3101e 1670{
2e0fef85 1671 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1672
2e0fef85 1673 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
c9f8735b 1674 return ndlp->nlp_state;
dea3101e 1675}
1676
1677static uint32_t
2e0fef85
JS		 1678lpfc_rcv_padisc_mapped_node(struct lpfc_vport *vport,
1679 struct lpfc_nodelist *ndlp,
1680 void *arg, uint32_t evt)
dea3101e 1681{
2e0fef85 1682 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1683
2e0fef85 1684 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
c9f8735b 1685 return ndlp->nlp_state;
dea3101e 1686}
1687
1688static uint32_t
2e0fef85
JS		 1689lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1690 void *arg, uint32_t evt)
dea3101e 1691{
2e0fef85
JS		 1692 struct lpfc_hba *phba = vport->phba;
1693 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1694
1695 /* flush the target */
51ef4c26
JS		 1696 lpfc_sli_abort_iocb(vport, &phba->sli.ring[phba->sli.fcp_ring],
1697 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
dea3101e 1698
1699 /* Treat like rcv logo */
2e0fef85 1700 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO);
c9f8735b 1701 return ndlp->nlp_state;
dea3101e 1702}
1703
1704static uint32_t
2e0fef85
JS		 1705lpfc_device_recov_mapped_node(struct lpfc_vport *vport,
1706 struct lpfc_nodelist *ndlp,
1707 void *arg,
1708 uint32_t evt)
dea3101e 1709{
2e0fef85
JS		 1710 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1711
5024ab17 1712 ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE;
2e0fef85
JS		 1713 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1714 spin_lock_irq(shost->host_lock);
a0f9b48d 1715 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2e0fef85
JS		 1716 spin_unlock_irq(shost->host_lock);
1717 lpfc_disc_set_adisc(vport, ndlp);
c9f8735b 1718 return ndlp->nlp_state;
dea3101e 1719}
1720
1721static uint32_t
2e0fef85
JS		 1722lpfc_rcv_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1723 void *arg, uint32_t evt)
dea3101e 1724{
2e0fef85
JS		 1725 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1726 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1727
1728 /* Ignore PLOGI if we have an outstanding LOGO */
0d2b6b83 1729 if (ndlp->nlp_flag & (NLP_LOGO_SND | NLP_LOGO_ACC))
c9f8735b 1730 return ndlp->nlp_state;
2e0fef85 1731 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
0d2b6b83 1732 lpfc_cancel_retry_delay_tmo(vport, ndlp);
2e0fef85 1733 spin_lock_irq(shost->host_lock);
0d2b6b83 1734 ndlp->nlp_flag &= ~(NLP_NPR_ADISC | NLP_NPR_2B_DISC);
2e0fef85 1735 spin_unlock_irq(shost->host_lock);
0d2b6b83
JS		 1736 } else if (!(ndlp->nlp_flag & NLP_NPR_2B_DISC)) {
1737 /* send PLOGI immediately, move to PLOGI issue state */
1738 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
1739 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
1740 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
1741 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
1742 }
dea3101e 1743 }
c9f8735b 1744 return ndlp->nlp_state;
dea3101e 1745}
1746
1747static uint32_t
2e0fef85
JS		 1748lpfc_rcv_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1749 void *arg, uint32_t evt)
dea3101e 1750{
2e0fef85
JS		 1751 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1752 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1753 struct ls_rjt stat;
dea3101e 1754
1755 memset(&stat, 0, sizeof (struct ls_rjt));
1756 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
1757 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
858c9f6c 1758 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
dea3101e 1759
1760 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
1761 if (ndlp->nlp_flag & NLP_NPR_ADISC) {
2e0fef85 1762 spin_lock_irq(shost->host_lock);
c9f8735b 1763 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
5024ab17 1764 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2e0fef85
JS		 1765 spin_unlock_irq(shost->host_lock);
1766 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
1767 lpfc_issue_els_adisc(vport, ndlp, 0);
dea3101e 1768 } else {
5024ab17 1769 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2e0fef85
JS		 1770 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
1771 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
dea3101e 1772 }
1773 }
c9f8735b 1774 return ndlp->nlp_state;
dea3101e 1775}
1776
1777static uint32_t
2e0fef85
JS		 1778lpfc_rcv_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1779 void *arg, uint32_t evt)
dea3101e 1780{
2e0fef85 1781 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1782
2e0fef85 1783 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
c9f8735b 1784 return ndlp->nlp_state;
dea3101e 1785}
1786
1787static uint32_t
2e0fef85
JS		 1788lpfc_rcv_padisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1789 void *arg, uint32_t evt)
dea3101e 1790{
2e0fef85 1791 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1792
2e0fef85 1793 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
33ccf8d1
JS		 1794 /*
1795 * Do not start discovery if discovery is about to start
1796 * or discovery in progress for this node. Starting discovery
1797 * here will affect the counting of discovery threads.
1798 */
2fb9bd8b 1799 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) &&
92d7f7b0 1800 !(ndlp->nlp_flag & NLP_NPR_2B_DISC)) {
dea3101e 1801 if (ndlp->nlp_flag & NLP_NPR_ADISC) {
92d7f7b0 1802 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
5024ab17 1803 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2e0fef85
JS		 1804 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
1805 lpfc_issue_els_adisc(vport, ndlp, 0);
dea3101e 1806 } else {
5024ab17 1807 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2e0fef85
JS		 1808 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
1809 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
dea3101e 1810 }
1811 }
c9f8735b 1812 return ndlp->nlp_state;
dea3101e 1813}
1814
1815static uint32_t
2e0fef85
JS		 1816lpfc_rcv_prlo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1817 void *arg, uint32_t evt)
dea3101e 1818{
2e0fef85
JS		 1819 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1820 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1821
2e0fef85 1822 spin_lock_irq(shost->host_lock);
c9f8735b 1823 ndlp->nlp_flag |= NLP_LOGO_ACC;
2e0fef85 1824 spin_unlock_irq(shost->host_lock);
c9f8735b 1825
51ef4c26 1826 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
dea3101e 1827
2e0fef85 1828 if ((ndlp->nlp_flag & NLP_DELAY_TMO) == 0) {
c9f8735b 1829 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
2e0fef85 1830 spin_lock_irq(shost->host_lock);
c9f8735b
JW		 1831 ndlp->nlp_flag |= NLP_DELAY_TMO;
1832 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2e0fef85 1833 spin_unlock_irq(shost->host_lock);
5024ab17 1834 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
c9f8735b 1835 } else {
2e0fef85 1836 spin_lock_irq(shost->host_lock);
c9f8735b 1837 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2e0fef85 1838 spin_unlock_irq(shost->host_lock);
dea3101e 1839 }
c9f8735b
JW		 1840 return ndlp->nlp_state;
1841}
dea3101e 1842
c9f8735b 1843static uint32_t
2e0fef85
JS		 1844lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1845 void *arg, uint32_t evt)
c9f8735b
JW		 1846{
1847 struct lpfc_iocbq *cmdiocb, *rspiocb;
a0f9b48d 1848 IOCB_t *irsp;
c9f8735b
JW		 1849
1850 cmdiocb = (struct lpfc_iocbq *) arg;
1851 rspiocb = cmdiocb->context_un.rsp_iocb;
a0f9b48d
JS		 1852
1853 irsp = &rspiocb->iocb;
1854 if (irsp->ulpStatus) {
a8adb832 1855 ndlp->nlp_flag |= NLP_DEFER_RM;
a0f9b48d
JS		 1856 return NLP_STE_FREED_NODE;
1857 }
c9f8735b
JW		 1858 return ndlp->nlp_state;
1859}
1860
1861static uint32_t
2e0fef85
JS		 1862lpfc_cmpl_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1863 void *arg, uint32_t evt)
c9f8735b
JW		 1864{
1865 struct lpfc_iocbq *cmdiocb, *rspiocb;
a0f9b48d 1866 IOCB_t *irsp;
c9f8735b
JW		 1867
1868 cmdiocb = (struct lpfc_iocbq *) arg;
1869 rspiocb = cmdiocb->context_un.rsp_iocb;
a0f9b48d
JS		 1870
1871 irsp = &rspiocb->iocb;
1872 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) {
2e0fef85 1873 lpfc_drop_node(vport, ndlp);
a0f9b48d
JS		 1874 return NLP_STE_FREED_NODE;
1875 }
c9f8735b 1876 return ndlp->nlp_state;
dea3101e 1877}
1878
1879static uint32_t
2e0fef85
JS		 1880lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1881 void *arg, uint32_t evt)
dea3101e 1882{
d7c255b2
JS		 1883 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1884 if (ndlp->nlp_DID == Fabric_DID) {
1885 spin_lock_irq(shost->host_lock);
1886 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
1887 spin_unlock_irq(shost->host_lock);
1888 }
2e0fef85 1889 lpfc_unreg_rpi(vport, ndlp);
c9f8735b
JW		 1890 return ndlp->nlp_state;
1891}
1892
1893static uint32_t
2e0fef85
JS		 1894lpfc_cmpl_adisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1895 void *arg, uint32_t evt)
c9f8735b
JW		 1896{
1897 struct lpfc_iocbq *cmdiocb, *rspiocb;
a0f9b48d 1898 IOCB_t *irsp;
c9f8735b
JW		 1899
1900 cmdiocb = (struct lpfc_iocbq *) arg;
1901 rspiocb = cmdiocb->context_un.rsp_iocb;
a0f9b48d
JS		 1902
1903 irsp = &rspiocb->iocb;
1904 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) {
2e0fef85 1905 lpfc_drop_node(vport, ndlp);
a0f9b48d
JS		 1906 return NLP_STE_FREED_NODE;
1907 }
c9f8735b 1908 return ndlp->nlp_state;
dea3101e 1909}
1910
1911static uint32_t
2e0fef85
JS		 1912lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport,
1913 struct lpfc_nodelist *ndlp,
1914 void *arg, uint32_t evt)
dea3101e 1915{
2e0fef85 1916 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
04c68496 1917 MAILBOX_t *mb = &pmb->u.mb;
dea3101e 1918
04c68496 1919 if (!mb->mbxStatus) {
c9f8735b 1920 ndlp->nlp_rpi = mb->un.varWords[0];
04c68496
JS		 1921 ndlp->nlp_flag |= NLP_RPI_VALID;
1922 } else {
a0f9b48d 1923 if (ndlp->nlp_flag & NLP_NODEV_REMOVE) {
2e0fef85 1924 lpfc_drop_node(vport, ndlp);
a0f9b48d
JS		 1925 return NLP_STE_FREED_NODE;
1926 }
1927 }
c9f8735b 1928 return ndlp->nlp_state;
dea3101e 1929}
1930
1931static uint32_t
2e0fef85
JS		 1932lpfc_device_rm_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1933 void *arg, uint32_t evt)
dea3101e 1934{
2e0fef85
JS		 1935 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1936
a0f9b48d 1937 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
2e0fef85 1938 spin_lock_irq(shost->host_lock);
a0f9b48d 1939 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
2e0fef85 1940 spin_unlock_irq(shost->host_lock);
a0f9b48d
JS		 1941 return ndlp->nlp_state;
1942 }
2e0fef85 1943 lpfc_drop_node(vport, ndlp);
c9f8735b 1944 return NLP_STE_FREED_NODE;
dea3101e 1945}
1946
1947static uint32_t
2e0fef85
JS		 1948lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1949 void *arg, uint32_t evt)
dea3101e 1950{
2e0fef85
JS		 1951 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1952
92d7f7b0
JS		 1953 /* Don't do anything that will mess up processing of the
1954 * previous RSCN.
1955 */
1956 if (vport->fc_flag & FC_RSCN_DEFERRED)
1957 return ndlp->nlp_state;
1958
eaf15d5b 1959 lpfc_cancel_retry_delay_tmo(vport, ndlp);
2e0fef85 1960 spin_lock_irq(shost->host_lock);
a0f9b48d 1961 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2e0fef85 1962 spin_unlock_irq(shost->host_lock);
c9f8735b 1963 return ndlp->nlp_state;
dea3101e 1964}
1965
1966
1967/* This next section defines the NPort Discovery State Machine */
1968
1969/* There are 4 different double linked lists nodelist entries can reside on.
1970 * The plogi list and adisc list are used when Link Up discovery or RSCN
1971 * processing is needed. Each list holds the nodes that we will send PLOGI
1972 * or ADISC on. These lists will keep track of what nodes will be effected
1973 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up).
1974 * The unmapped_list will contain all nodes that we have successfully logged
1975 * into at the Fibre Channel level. The mapped_list will contain all nodes
1976 * that are mapped FCP targets.
1977 */
1978/*
1979 * The bind list is a list of undiscovered (potentially non-existent) nodes
1980 * that we have saved binding information on. This information is used when
1981 * nodes transition from the unmapped to the mapped list.
1982 */
1983/* For UNUSED_NODE state, the node has just been allocated .
1984 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on
1985 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list
1986 * and put on the unmapped list. For ADISC processing, the node is taken off
1987 * the ADISC list and placed on either the mapped or unmapped list (depending
1988 * on its previous state). Once on the unmapped list, a PRLI is issued and the
1989 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is
1990 * changed to UNMAPPED_NODE. If the completion indicates a mapped
1991 * node, the node is taken off the unmapped list. The binding list is checked
1992 * for a valid binding, or a binding is automatically assigned. If binding
1993 * assignment is unsuccessful, the node is left on the unmapped list. If
1994 * binding assignment is successful, the associated binding list entry (if
1995 * any) is removed, and the node is placed on the mapped list.
1996 */
1997/*
1998 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped
c01f3208 1999 * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers
dea3101e 2000 * expire, all effected nodes will receive a DEVICE_RM event.
2001 */
2002/*
2003 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists
2004 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap
2005 * check, additional nodes may be added or removed (via DEVICE_RM) to / from
2006 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated,
2007 * we will first process the ADISC list. 32 entries are processed initially and
2008 * ADISC is initited for each one. Completions / Events for each node are
2009 * funnelled thru the state machine. As each node finishes ADISC processing, it
2010 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are
2011 * waiting, and the ADISC list count is identically 0, then we are done. For
2012 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we
2013 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI
2014 * list. 32 entries are processed initially and PLOGI is initited for each one.
2015 * Completions / Events for each node are funnelled thru the state machine. As
2016 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting
2017 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is
2018 * indentically 0, then we are done. We have now completed discovery / RSCN
2019 * handling. Upon completion, ALL nodes should be on either the mapped or
2020 * unmapped lists.
2021 */
2022
2023static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT])
2e0fef85 2024 (struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t) = {
dea3101e 2025 /* Action routine Event Current State */
2026 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */
2027 lpfc_rcv_els_unused_node, /* RCV_PRLI */
2028 lpfc_rcv_logo_unused_node, /* RCV_LOGO */
2029 lpfc_rcv_els_unused_node, /* RCV_ADISC */
2030 lpfc_rcv_els_unused_node, /* RCV_PDISC */
2031 lpfc_rcv_els_unused_node, /* RCV_PRLO */
2032 lpfc_disc_illegal, /* CMPL_PLOGI */
2033 lpfc_disc_illegal, /* CMPL_PRLI */
2034 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */
2035 lpfc_disc_illegal, /* CMPL_ADISC */
2036 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2037 lpfc_device_rm_unused_node, /* DEVICE_RM */
2038 lpfc_disc_illegal, /* DEVICE_RECOVERY */
2039
2040 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */
92d7f7b0 2041 lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */
c9f8735b 2042 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */
dea3101e 2043 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */
2044 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */
2045 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */
2046 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */
2047 lpfc_disc_illegal, /* CMPL_PRLI */
0ff10d46 2048 lpfc_cmpl_logo_plogi_issue, /* CMPL_LOGO */
dea3101e 2049 lpfc_disc_illegal, /* CMPL_ADISC */
0ff10d46 2050 lpfc_cmpl_reglogin_plogi_issue,/* CMPL_REG_LOGIN */
dea3101e 2051 lpfc_device_rm_plogi_issue, /* DEVICE_RM */
2052 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */
2053
2054 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */
2055 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */
2056 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */
2057 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */
2058 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */
2059 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */
2060 lpfc_disc_illegal, /* CMPL_PLOGI */
2061 lpfc_disc_illegal, /* CMPL_PRLI */
2062 lpfc_disc_illegal, /* CMPL_LOGO */
2063 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */
2064 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2065 lpfc_device_rm_adisc_issue, /* DEVICE_RM */
2066 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */
2067
2068 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */
2069 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */
2070 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */
2071 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */
2072 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */
2073 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */
87af33fe 2074 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */
dea3101e 2075 lpfc_disc_illegal, /* CMPL_PRLI */
2076 lpfc_disc_illegal, /* CMPL_LOGO */
2077 lpfc_disc_illegal, /* CMPL_ADISC */
2078 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */
2079 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */
2080 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */
2081
2082 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */
2083 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */
2084 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */
2085 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */
2086 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */
2087 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */
87af33fe 2088 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */
dea3101e 2089 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */
2090 lpfc_disc_illegal, /* CMPL_LOGO */
2091 lpfc_disc_illegal, /* CMPL_ADISC */
2092 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2093 lpfc_device_rm_prli_issue, /* DEVICE_RM */
2094 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */
2095
2096 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */
2097 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */
2098 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */
2099 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */
2100 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */
2101 lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */
2102 lpfc_disc_illegal, /* CMPL_PLOGI */
2103 lpfc_disc_illegal, /* CMPL_PRLI */
2104 lpfc_disc_illegal, /* CMPL_LOGO */
2105 lpfc_disc_illegal, /* CMPL_ADISC */
2106 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2107 lpfc_disc_illegal, /* DEVICE_RM */
2108 lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */
2109
2110 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */
2111 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */
2112 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */
2113 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */
2114 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */
2115 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */
2116 lpfc_disc_illegal, /* CMPL_PLOGI */
2117 lpfc_disc_illegal, /* CMPL_PRLI */
2118 lpfc_disc_illegal, /* CMPL_LOGO */
2119 lpfc_disc_illegal, /* CMPL_ADISC */
2120 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2121 lpfc_disc_illegal, /* DEVICE_RM */
2122 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */
2123
2124 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */
2125 lpfc_rcv_prli_npr_node, /* RCV_PRLI */
2126 lpfc_rcv_logo_npr_node, /* RCV_LOGO */
2127 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */
2128 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */
2129 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */
c9f8735b
JW		 2130 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */
2131 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */
dea3101e 2132 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */
c9f8735b 2133 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */
dea3101e 2134 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */
2135 lpfc_device_rm_npr_node, /* DEVICE_RM */
2136 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */
2137};
2138
2139int
2e0fef85
JS		 2140lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2141 void *arg, uint32_t evt)
dea3101e 2142{
2143 uint32_t cur_state, rc;
2e0fef85 2144 uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *,
dea3101e 2145 uint32_t);
e47c9093
JS		 2146 uint32_t got_ndlp = 0;
2147
2148 if (lpfc_nlp_get(ndlp))
2149 got_ndlp = 1;
dea3101e 2150
dea3101e 2151 cur_state = ndlp->nlp_state;
2152
2153 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */
e8b62011
JS		 2154 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2155 "0211 DSM in event x%x on NPort x%x in "
2156 "state %d Data: x%x\n",
2157 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_flag);
dea3101e 2158
858c9f6c
JS		 2159 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
2160 "DSM in: evt:%d ste:%d did:x%x",
2161 evt, cur_state, ndlp->nlp_DID);
2162
dea3101e 2163 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt];
2e0fef85 2164 rc = (func) (vport, ndlp, arg, evt);
dea3101e 2165
2166 /* DSM out state <rc> on NPort <nlp_DID> */
e47c9093
JS		 2167 if (got_ndlp) {
2168 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
e8b62011
JS		 2169 "0212 DSM out state %d on NPort x%x Data: x%x\n",
2170 rc, ndlp->nlp_DID, ndlp->nlp_flag);
dea3101e 2171
e47c9093
JS		 2172 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
2173 "DSM out: ste:%d did:x%x flg:x%x",
2174 rc, ndlp->nlp_DID, ndlp->nlp_flag);
2175 /* Decrement the ndlp reference count held for this function */
2176 lpfc_nlp_put(ndlp);
2177 } else {
2178 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
d7c255b2 2179 "0213 DSM out state %d on NPort free\n", rc);
858c9f6c 2180
e47c9093
JS		 2181 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
2182 "DSM out: ste:%d did:x%x flg:x%x",
2183 rc, 0, 0);
2184 }
dea3101e 2185
c9f8735b 2186 return rc;
dea3101e 2187}
Linux 6.x block layer and io_uring tree(s)