1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2015 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
9 * This program is free software; you can redistribute it and/or *
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. *
20 *******************************************************************/
21 /* See Fibre Channel protocol T11 FC-LS for details */
22 #include <linux/blkdev.h>
23 #include <linux/pci.h>
24 #include <linux/slab.h>
25 #include <linux/interrupt.h>
27 #include <scsi/scsi.h>
28 #include <scsi/scsi_device.h>
29 #include <scsi/scsi_host.h>
30 #include <scsi/scsi_transport_fc.h>
36 #include "lpfc_sli4.h"
38 #include "lpfc_disc.h"
39 #include "lpfc_scsi.h"
41 #include "lpfc_logmsg.h"
42 #include "lpfc_crtn.h"
43 #include "lpfc_vport.h"
44 #include "lpfc_debugfs.h"
46 static int lpfc_els_retry(struct lpfc_hba
*, struct lpfc_iocbq
*,
48 static void lpfc_cmpl_fabric_iocb(struct lpfc_hba
*, struct lpfc_iocbq
*,
50 static void lpfc_fabric_abort_vport(struct lpfc_vport
*vport
);
51 static int lpfc_issue_els_fdisc(struct lpfc_vport
*vport
,
52 struct lpfc_nodelist
*ndlp
, uint8_t retry
);
53 static int lpfc_issue_fabric_iocb(struct lpfc_hba
*phba
,
54 struct lpfc_iocbq
*iocb
);
56 static int lpfc_max_els_tries
= 3;
59 * lpfc_els_chk_latt - Check host link attention event for a vport
60 * @vport: pointer to a host virtual N_Port data structure.
62 * This routine checks whether there is an outstanding host link
63 * attention event during the discovery process with the @vport. It is done
64 * by reading the HBA's Host Attention (HA) register. If there is any host
65 * link attention events during this @vport's discovery process, the @vport
66 * shall be marked as FC_ABORT_DISCOVERY, a host link attention clear shall
67 * be issued if the link state is not already in host link cleared state,
68 * and a return code shall indicate whether the host link attention event
71 * Note that, if either the host link is in state LPFC_LINK_DOWN or @vport
72 * state in LPFC_VPORT_READY, the request for checking host link attention
73 * event will be ignored and a return code shall indicate no host link
74 * attention event had happened.
77 * 0 - no host link attention event happened
78 * 1 - host link attention event happened
81 lpfc_els_chk_latt(struct lpfc_vport
*vport
)
83 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
84 struct lpfc_hba
*phba
= vport
->phba
;
87 if (vport
->port_state
>= LPFC_VPORT_READY
||
88 phba
->link_state
== LPFC_LINK_DOWN
||
89 phba
->sli_rev
> LPFC_SLI_REV3
)
92 /* Read the HBA Host Attention Register */
93 if (lpfc_readl(phba
->HAregaddr
, &ha_copy
))
96 if (!(ha_copy
& HA_LATT
))
99 /* Pending Link Event during Discovery */
100 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
101 "0237 Pending Link Event during "
102 "Discovery: State x%x\n",
103 phba
->pport
->port_state
);
105 /* CLEAR_LA should re-enable link attention events and
106 * we should then immediately take a LATT event. The
107 * LATT processing should call lpfc_linkdown() which
108 * will cleanup any left over in-progress discovery
111 spin_lock_irq(shost
->host_lock
);
112 vport
->fc_flag
|= FC_ABORT_DISCOVERY
;
113 spin_unlock_irq(shost
->host_lock
);
115 if (phba
->link_state
!= LPFC_CLEAR_LA
)
116 lpfc_issue_clear_la(phba
, vport
);
122 * lpfc_prep_els_iocb - Allocate and prepare a lpfc iocb data structure
123 * @vport: pointer to a host virtual N_Port data structure.
124 * @expectRsp: flag indicating whether response is expected.
125 * @cmdSize: size of the ELS command.
126 * @retry: number of retries to the command IOCB when it fails.
127 * @ndlp: pointer to a node-list data structure.
128 * @did: destination identifier.
129 * @elscmd: the ELS command code.
131 * This routine is used for allocating a lpfc-IOCB data structure from
132 * the driver lpfc-IOCB free-list and prepare the IOCB with the parameters
133 * passed into the routine for discovery state machine to issue an Extended
134 * Link Service (ELS) commands. It is a generic lpfc-IOCB allocation
135 * and preparation routine that is used by all the discovery state machine
136 * routines and the ELS command-specific fields will be later set up by
137 * the individual discovery machine routines after calling this routine
138 * allocating and preparing a generic IOCB data structure. It fills in the
139 * Buffer Descriptor Entries (BDEs), allocates buffers for both command
140 * payload and response payload (if expected). The reference count on the
141 * ndlp is incremented by 1 and the reference to the ndlp is put into
142 * context1 of the IOCB data structure for this IOCB to hold the ndlp
143 * reference for the command's callback function to access later.
146 * Pointer to the newly allocated/prepared els iocb data structure
147 * NULL - when els iocb data structure allocation/preparation failed
150 lpfc_prep_els_iocb(struct lpfc_vport
*vport
, uint8_t expectRsp
,
151 uint16_t cmdSize
, uint8_t retry
,
152 struct lpfc_nodelist
*ndlp
, uint32_t did
,
155 struct lpfc_hba
*phba
= vport
->phba
;
156 struct lpfc_iocbq
*elsiocb
;
157 struct lpfc_dmabuf
*pcmd
, *prsp
, *pbuflist
;
158 struct ulp_bde64
*bpl
;
162 if (!lpfc_is_link_up(phba
))
165 /* Allocate buffer for command iocb */
166 elsiocb
= lpfc_sli_get_iocbq(phba
);
172 * If this command is for fabric controller and HBA running
173 * in FIP mode send FLOGI, FDISC and LOGO as FIP frames.
175 if ((did
== Fabric_DID
) &&
176 (phba
->hba_flag
& HBA_FIP_SUPPORT
) &&
177 ((elscmd
== ELS_CMD_FLOGI
) ||
178 (elscmd
== ELS_CMD_FDISC
) ||
179 (elscmd
== ELS_CMD_LOGO
)))
182 elsiocb
->iocb_flag
|=
183 ((LPFC_ELS_ID_FLOGI
<< LPFC_FIP_ELS_ID_SHIFT
)
184 & LPFC_FIP_ELS_ID_MASK
);
187 elsiocb
->iocb_flag
|=
188 ((LPFC_ELS_ID_FDISC
<< LPFC_FIP_ELS_ID_SHIFT
)
189 & LPFC_FIP_ELS_ID_MASK
);
192 elsiocb
->iocb_flag
|=
193 ((LPFC_ELS_ID_LOGO
<< LPFC_FIP_ELS_ID_SHIFT
)
194 & LPFC_FIP_ELS_ID_MASK
);
198 elsiocb
->iocb_flag
&= ~LPFC_FIP_ELS_ID_MASK
;
200 icmd
= &elsiocb
->iocb
;
202 /* fill in BDEs for command */
203 /* Allocate buffer for command payload */
204 pcmd
= kmalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
206 pcmd
->virt
= lpfc_mbuf_alloc(phba
, MEM_PRI
, &pcmd
->phys
);
207 if (!pcmd
|| !pcmd
->virt
)
208 goto els_iocb_free_pcmb_exit
;
210 INIT_LIST_HEAD(&pcmd
->list
);
212 /* Allocate buffer for response payload */
214 prsp
= kmalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
216 prsp
->virt
= lpfc_mbuf_alloc(phba
, MEM_PRI
,
218 if (!prsp
|| !prsp
->virt
)
219 goto els_iocb_free_prsp_exit
;
220 INIT_LIST_HEAD(&prsp
->list
);
224 /* Allocate buffer for Buffer ptr list */
225 pbuflist
= kmalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
227 pbuflist
->virt
= lpfc_mbuf_alloc(phba
, MEM_PRI
,
229 if (!pbuflist
|| !pbuflist
->virt
)
230 goto els_iocb_free_pbuf_exit
;
232 INIT_LIST_HEAD(&pbuflist
->list
);
235 icmd
->un
.elsreq64
.bdl
.addrHigh
= putPaddrHigh(pbuflist
->phys
);
236 icmd
->un
.elsreq64
.bdl
.addrLow
= putPaddrLow(pbuflist
->phys
);
237 icmd
->un
.elsreq64
.bdl
.bdeFlags
= BUFF_TYPE_BLP_64
;
238 icmd
->un
.elsreq64
.bdl
.bdeSize
= (2 * sizeof(struct ulp_bde64
));
240 icmd
->un
.elsreq64
.remoteID
= did
; /* DID */
241 icmd
->ulpCommand
= CMD_ELS_REQUEST64_CR
;
242 if (elscmd
== ELS_CMD_FLOGI
)
243 icmd
->ulpTimeout
= FF_DEF_RATOV
* 2;
245 icmd
->ulpTimeout
= phba
->fc_ratov
* 2;
247 icmd
->un
.xseq64
.bdl
.addrHigh
= putPaddrHigh(pbuflist
->phys
);
248 icmd
->un
.xseq64
.bdl
.addrLow
= putPaddrLow(pbuflist
->phys
);
249 icmd
->un
.xseq64
.bdl
.bdeFlags
= BUFF_TYPE_BLP_64
;
250 icmd
->un
.xseq64
.bdl
.bdeSize
= sizeof(struct ulp_bde64
);
251 icmd
->un
.xseq64
.xmit_els_remoteID
= did
; /* DID */
252 icmd
->ulpCommand
= CMD_XMIT_ELS_RSP64_CX
;
254 icmd
->ulpBdeCount
= 1;
256 icmd
->ulpClass
= CLASS3
;
259 * If we have NPIV enabled, we want to send ELS traffic by VPI.
260 * For SLI4, since the driver controls VPIs we also want to include
261 * all ELS pt2pt protocol traffic as well.
263 if ((phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) ||
264 ((phba
->sli_rev
== LPFC_SLI_REV4
) &&
265 (vport
->fc_flag
& FC_PT2PT
))) {
268 icmd
->un
.elsreq64
.myID
= vport
->fc_myDID
;
270 /* For ELS_REQUEST64_CR, use the VPI by default */
271 icmd
->ulpContext
= phba
->vpi_ids
[vport
->vpi
];
275 /* The CT field must be 0=INVALID_RPI for the ECHO cmd */
276 if (elscmd
== ELS_CMD_ECHO
)
277 icmd
->ulpCt_l
= 0; /* context = invalid RPI */
279 icmd
->ulpCt_l
= 1; /* context = VPI */
282 bpl
= (struct ulp_bde64
*) pbuflist
->virt
;
283 bpl
->addrLow
= le32_to_cpu(putPaddrLow(pcmd
->phys
));
284 bpl
->addrHigh
= le32_to_cpu(putPaddrHigh(pcmd
->phys
));
285 bpl
->tus
.f
.bdeSize
= cmdSize
;
286 bpl
->tus
.f
.bdeFlags
= 0;
287 bpl
->tus
.w
= le32_to_cpu(bpl
->tus
.w
);
291 bpl
->addrLow
= le32_to_cpu(putPaddrLow(prsp
->phys
));
292 bpl
->addrHigh
= le32_to_cpu(putPaddrHigh(prsp
->phys
));
293 bpl
->tus
.f
.bdeSize
= FCELSSIZE
;
294 bpl
->tus
.f
.bdeFlags
= BUFF_TYPE_BDE_64
;
295 bpl
->tus
.w
= le32_to_cpu(bpl
->tus
.w
);
298 /* prevent preparing iocb with NULL ndlp reference */
299 elsiocb
->context1
= lpfc_nlp_get(ndlp
);
300 if (!elsiocb
->context1
)
301 goto els_iocb_free_pbuf_exit
;
302 elsiocb
->context2
= pcmd
;
303 elsiocb
->context3
= pbuflist
;
304 elsiocb
->retry
= retry
;
305 elsiocb
->vport
= vport
;
306 elsiocb
->drvrTimeout
= (phba
->fc_ratov
<< 1) + LPFC_DRVR_TIMEOUT
;
309 list_add(&prsp
->list
, &pcmd
->list
);
312 /* Xmit ELS command <elsCmd> to remote NPORT <did> */
313 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
314 "0116 Xmit ELS command x%x to remote "
315 "NPORT x%x I/O tag: x%x, port state:x%x"
317 elscmd
, did
, elsiocb
->iotag
,
321 /* Xmit ELS response <elsCmd> to remote NPORT <did> */
322 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
323 "0117 Xmit ELS response x%x to remote "
324 "NPORT x%x I/O tag: x%x, size: x%x "
325 "port_state x%x fc_flag x%x\n",
326 elscmd
, ndlp
->nlp_DID
, elsiocb
->iotag
,
327 cmdSize
, vport
->port_state
,
332 els_iocb_free_pbuf_exit
:
334 lpfc_mbuf_free(phba
, prsp
->virt
, prsp
->phys
);
337 els_iocb_free_prsp_exit
:
338 lpfc_mbuf_free(phba
, pcmd
->virt
, pcmd
->phys
);
341 els_iocb_free_pcmb_exit
:
343 lpfc_sli_release_iocbq(phba
, elsiocb
);
348 * lpfc_issue_fabric_reglogin - Issue fabric registration login for a vport
349 * @vport: pointer to a host virtual N_Port data structure.
351 * This routine issues a fabric registration login for a @vport. An
352 * active ndlp node with Fabric_DID must already exist for this @vport.
353 * The routine invokes two mailbox commands to carry out fabric registration
354 * login through the HBA firmware: the first mailbox command requests the
355 * HBA to perform link configuration for the @vport; and the second mailbox
356 * command requests the HBA to perform the actual fabric registration login
360 * 0 - successfully issued fabric registration login for @vport
361 * -ENXIO -- failed to issue fabric registration login for @vport
364 lpfc_issue_fabric_reglogin(struct lpfc_vport
*vport
)
366 struct lpfc_hba
*phba
= vport
->phba
;
368 struct lpfc_dmabuf
*mp
;
369 struct lpfc_nodelist
*ndlp
;
370 struct serv_parm
*sp
;
374 sp
= &phba
->fc_fabparam
;
375 ndlp
= lpfc_findnode_did(vport
, Fabric_DID
);
376 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
)) {
381 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
387 vport
->port_state
= LPFC_FABRIC_CFG_LINK
;
388 lpfc_config_link(phba
, mbox
);
389 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
392 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
393 if (rc
== MBX_NOT_FINISHED
) {
398 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
403 rc
= lpfc_reg_rpi(phba
, vport
->vpi
, Fabric_DID
, (uint8_t *)sp
, mbox
,
410 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_fabric_reg_login
;
412 /* increment the reference count on ndlp to hold reference
413 * for the callback routine.
415 mbox
->context2
= lpfc_nlp_get(ndlp
);
417 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
418 if (rc
== MBX_NOT_FINISHED
) {
420 goto fail_issue_reg_login
;
425 fail_issue_reg_login
:
426 /* decrement the reference count on ndlp just incremented
427 * for the failed mbox command.
430 mp
= (struct lpfc_dmabuf
*) mbox
->context1
;
431 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
434 mempool_free(mbox
, phba
->mbox_mem_pool
);
437 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
438 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
439 "0249 Cannot issue Register Fabric login: Err %d\n", err
);
444 * lpfc_issue_reg_vfi - Register VFI for this vport's fabric login
445 * @vport: pointer to a host virtual N_Port data structure.
447 * This routine issues a REG_VFI mailbox for the vfi, vpi, fcfi triplet for
448 * the @vport. This mailbox command is necessary for SLI4 port only.
451 * 0 - successfully issued REG_VFI for @vport
452 * A failure code otherwise.
455 lpfc_issue_reg_vfi(struct lpfc_vport
*vport
)
457 struct lpfc_hba
*phba
= vport
->phba
;
458 LPFC_MBOXQ_t
*mboxq
= NULL
;
459 struct lpfc_nodelist
*ndlp
;
460 struct lpfc_dmabuf
*dmabuf
= NULL
;
463 /* move forward in case of SLI4 FC port loopback test and pt2pt mode */
464 if ((phba
->sli_rev
== LPFC_SLI_REV4
) &&
465 !(phba
->link_flag
& LS_LOOPBACK_MODE
) &&
466 !(vport
->fc_flag
& FC_PT2PT
)) {
467 ndlp
= lpfc_findnode_did(vport
, Fabric_DID
);
468 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
)) {
474 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
480 /* Supply CSP's only if we are fabric connect or pt-to-pt connect */
481 if ((vport
->fc_flag
& FC_FABRIC
) || (vport
->fc_flag
& FC_PT2PT
)) {
482 dmabuf
= kzalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
487 dmabuf
->virt
= lpfc_mbuf_alloc(phba
, MEM_PRI
, &dmabuf
->phys
);
492 memcpy(dmabuf
->virt
, &phba
->fc_fabparam
,
493 sizeof(struct serv_parm
));
496 vport
->port_state
= LPFC_FABRIC_CFG_LINK
;
498 lpfc_reg_vfi(mboxq
, vport
, dmabuf
->phys
);
500 lpfc_reg_vfi(mboxq
, vport
, 0);
502 mboxq
->mbox_cmpl
= lpfc_mbx_cmpl_reg_vfi
;
503 mboxq
->vport
= vport
;
504 mboxq
->context1
= dmabuf
;
505 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
506 if (rc
== MBX_NOT_FINISHED
) {
514 mempool_free(mboxq
, phba
->mbox_mem_pool
);
517 lpfc_mbuf_free(phba
, dmabuf
->virt
, dmabuf
->phys
);
521 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
522 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
523 "0289 Issue Register VFI failed: Err %d\n", rc
);
528 * lpfc_issue_unreg_vfi - Unregister VFI for this vport's fabric login
529 * @vport: pointer to a host virtual N_Port data structure.
531 * This routine issues a UNREG_VFI mailbox with the vfi, vpi, fcfi triplet for
532 * the @vport. This mailbox command is necessary for SLI4 port only.
535 * 0 - successfully issued REG_VFI for @vport
536 * A failure code otherwise.
539 lpfc_issue_unreg_vfi(struct lpfc_vport
*vport
)
541 struct lpfc_hba
*phba
= vport
->phba
;
542 struct Scsi_Host
*shost
;
546 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
548 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
|LOG_MBOX
,
549 "2556 UNREG_VFI mbox allocation failed"
550 "HBA state x%x\n", phba
->pport
->port_state
);
554 lpfc_unreg_vfi(mboxq
, vport
);
555 mboxq
->vport
= vport
;
556 mboxq
->mbox_cmpl
= lpfc_unregister_vfi_cmpl
;
558 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
559 if (rc
== MBX_NOT_FINISHED
) {
560 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
|LOG_MBOX
,
561 "2557 UNREG_VFI issue mbox failed rc x%x "
563 rc
, phba
->pport
->port_state
);
564 mempool_free(mboxq
, phba
->mbox_mem_pool
);
568 shost
= lpfc_shost_from_vport(vport
);
569 spin_lock_irq(shost
->host_lock
);
570 vport
->fc_flag
&= ~FC_VFI_REGISTERED
;
571 spin_unlock_irq(shost
->host_lock
);
576 * lpfc_check_clean_addr_bit - Check whether assigned FCID is clean.
577 * @vport: pointer to a host virtual N_Port data structure.
578 * @sp: pointer to service parameter data structure.
580 * This routine is called from FLOGI/FDISC completion handler functions.
581 * lpfc_check_clean_addr_bit return 1 when FCID/Fabric portname/ Fabric
582 * node nodename is changed in the completion service parameter else return
583 * 0. This function also set flag in the vport data structure to delay
584 * NP_Port discovery after the FLOGI/FDISC completion if Clean address bit
585 * in FLOGI/FDISC response is cleared and FCID/Fabric portname/ Fabric
586 * node nodename is changed in the completion service parameter.
589 * 0 - FCID and Fabric Nodename and Fabric portname is not changed.
590 * 1 - FCID or Fabric Nodename or Fabric portname is changed.
594 lpfc_check_clean_addr_bit(struct lpfc_vport
*vport
,
595 struct serv_parm
*sp
)
597 uint8_t fabric_param_changed
= 0;
598 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
600 if ((vport
->fc_prevDID
!= vport
->fc_myDID
) ||
601 memcmp(&vport
->fabric_portname
, &sp
->portName
,
602 sizeof(struct lpfc_name
)) ||
603 memcmp(&vport
->fabric_nodename
, &sp
->nodeName
,
604 sizeof(struct lpfc_name
)))
605 fabric_param_changed
= 1;
608 * Word 1 Bit 31 in common service parameter is overloaded.
609 * Word 1 Bit 31 in FLOGI request is multiple NPort request
610 * Word 1 Bit 31 in FLOGI response is clean address bit
612 * If fabric parameter is changed and clean address bit is
613 * cleared delay nport discovery if
614 * - vport->fc_prevDID != 0 (not initial discovery) OR
615 * - lpfc_delay_discovery module parameter is set.
617 if (fabric_param_changed
&& !sp
->cmn
.clean_address_bit
&&
618 (vport
->fc_prevDID
|| lpfc_delay_discovery
)) {
619 spin_lock_irq(shost
->host_lock
);
620 vport
->fc_flag
|= FC_DISC_DELAYED
;
621 spin_unlock_irq(shost
->host_lock
);
624 return fabric_param_changed
;
629 * lpfc_cmpl_els_flogi_fabric - Completion function for flogi to a fabric port
630 * @vport: pointer to a host virtual N_Port data structure.
631 * @ndlp: pointer to a node-list data structure.
632 * @sp: pointer to service parameter data structure.
633 * @irsp: pointer to the IOCB within the lpfc response IOCB.
635 * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback
636 * function to handle the completion of a Fabric Login (FLOGI) into a fabric
637 * port in a fabric topology. It properly sets up the parameters to the @ndlp
638 * from the IOCB response. It also check the newly assigned N_Port ID to the
639 * @vport against the previously assigned N_Port ID. If it is different from
640 * the previously assigned Destination ID (DID), the lpfc_unreg_rpi() routine
641 * is invoked on all the remaining nodes with the @vport to unregister the
642 * Remote Port Indicators (RPIs). Finally, the lpfc_issue_fabric_reglogin()
643 * is invoked to register login to the fabric.
646 * 0 - Success (currently, always return 0)
649 lpfc_cmpl_els_flogi_fabric(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
650 struct serv_parm
*sp
, IOCB_t
*irsp
)
652 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
653 struct lpfc_hba
*phba
= vport
->phba
;
654 struct lpfc_nodelist
*np
;
655 struct lpfc_nodelist
*next_np
;
656 uint8_t fabric_param_changed
;
658 spin_lock_irq(shost
->host_lock
);
659 vport
->fc_flag
|= FC_FABRIC
;
660 spin_unlock_irq(shost
->host_lock
);
662 phba
->fc_edtov
= be32_to_cpu(sp
->cmn
.e_d_tov
);
663 if (sp
->cmn
.edtovResolution
) /* E_D_TOV ticks are in nanoseconds */
664 phba
->fc_edtov
= (phba
->fc_edtov
+ 999999) / 1000000;
666 phba
->fc_edtovResol
= sp
->cmn
.edtovResolution
;
667 phba
->fc_ratov
= (be32_to_cpu(sp
->cmn
.w2
.r_a_tov
) + 999) / 1000;
669 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
670 spin_lock_irq(shost
->host_lock
);
671 vport
->fc_flag
|= FC_PUBLIC_LOOP
;
672 spin_unlock_irq(shost
->host_lock
);
675 vport
->fc_myDID
= irsp
->un
.ulpWord
[4] & Mask_DID
;
676 memcpy(&ndlp
->nlp_portname
, &sp
->portName
, sizeof(struct lpfc_name
));
677 memcpy(&ndlp
->nlp_nodename
, &sp
->nodeName
, sizeof(struct lpfc_name
));
678 ndlp
->nlp_class_sup
= 0;
679 if (sp
->cls1
.classValid
)
680 ndlp
->nlp_class_sup
|= FC_COS_CLASS1
;
681 if (sp
->cls2
.classValid
)
682 ndlp
->nlp_class_sup
|= FC_COS_CLASS2
;
683 if (sp
->cls3
.classValid
)
684 ndlp
->nlp_class_sup
|= FC_COS_CLASS3
;
685 if (sp
->cls4
.classValid
)
686 ndlp
->nlp_class_sup
|= FC_COS_CLASS4
;
687 ndlp
->nlp_maxframe
= ((sp
->cmn
.bbRcvSizeMsb
& 0x0F) << 8) |
688 sp
->cmn
.bbRcvSizeLsb
;
690 fabric_param_changed
= lpfc_check_clean_addr_bit(vport
, sp
);
691 memcpy(&vport
->fabric_portname
, &sp
->portName
,
692 sizeof(struct lpfc_name
));
693 memcpy(&vport
->fabric_nodename
, &sp
->nodeName
,
694 sizeof(struct lpfc_name
));
695 memcpy(&phba
->fc_fabparam
, sp
, sizeof(struct serv_parm
));
697 if (phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) {
698 if (sp
->cmn
.response_multiple_NPort
) {
699 lpfc_printf_vlog(vport
, KERN_WARNING
,
701 "1816 FLOGI NPIV supported, "
702 "response data 0x%x\n",
703 sp
->cmn
.response_multiple_NPort
);
704 spin_lock_irq(&phba
->hbalock
);
705 phba
->link_flag
|= LS_NPIV_FAB_SUPPORTED
;
706 spin_unlock_irq(&phba
->hbalock
);
708 /* Because we asked f/w for NPIV it still expects us
709 to call reg_vnpid atleast for the physcial host */
710 lpfc_printf_vlog(vport
, KERN_WARNING
,
712 "1817 Fabric does not support NPIV "
713 "- configuring single port mode.\n");
714 spin_lock_irq(&phba
->hbalock
);
715 phba
->link_flag
&= ~LS_NPIV_FAB_SUPPORTED
;
716 spin_unlock_irq(&phba
->hbalock
);
721 * For FC we need to do some special processing because of the SLI
722 * Port's default settings of the Common Service Parameters.
724 if ((phba
->sli_rev
== LPFC_SLI_REV4
) &&
725 (phba
->sli4_hba
.lnk_info
.lnk_tp
== LPFC_LNK_TYPE_FC
)) {
726 /* If physical FC port changed, unreg VFI and ALL VPIs / RPIs */
727 if (fabric_param_changed
)
728 lpfc_unregister_fcf_prep(phba
);
730 /* This should just update the VFI CSPs*/
731 if (vport
->fc_flag
& FC_VFI_REGISTERED
)
732 lpfc_issue_reg_vfi(vport
);
735 if (fabric_param_changed
&&
736 !(vport
->fc_flag
& FC_VPORT_NEEDS_REG_VPI
)) {
738 /* If our NportID changed, we need to ensure all
739 * remaining NPORTs get unreg_login'ed.
741 list_for_each_entry_safe(np
, next_np
,
742 &vport
->fc_nodes
, nlp_listp
) {
743 if (!NLP_CHK_NODE_ACT(np
))
745 if ((np
->nlp_state
!= NLP_STE_NPR_NODE
) ||
746 !(np
->nlp_flag
& NLP_NPR_ADISC
))
748 spin_lock_irq(shost
->host_lock
);
749 np
->nlp_flag
&= ~NLP_NPR_ADISC
;
750 spin_unlock_irq(shost
->host_lock
);
751 lpfc_unreg_rpi(vport
, np
);
753 lpfc_cleanup_pending_mbox(vport
);
755 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
756 lpfc_sli4_unreg_all_rpis(vport
);
757 lpfc_mbx_unreg_vpi(vport
);
758 spin_lock_irq(shost
->host_lock
);
759 vport
->fc_flag
|= FC_VPORT_NEEDS_INIT_VPI
;
760 spin_unlock_irq(shost
->host_lock
);
764 * For SLI3 and SLI4, the VPI needs to be reregistered in
765 * response to this fabric parameter change event.
767 spin_lock_irq(shost
->host_lock
);
768 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
769 spin_unlock_irq(shost
->host_lock
);
770 } else if ((phba
->sli_rev
== LPFC_SLI_REV4
) &&
771 !(vport
->fc_flag
& FC_VPORT_NEEDS_REG_VPI
)) {
773 * Driver needs to re-reg VPI in order for f/w
774 * to update the MAC address.
776 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_UNMAPPED_NODE
);
777 lpfc_register_new_vport(phba
, vport
, ndlp
);
781 if (phba
->sli_rev
< LPFC_SLI_REV4
) {
782 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_REG_LOGIN_ISSUE
);
783 if (phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
&&
784 vport
->fc_flag
& FC_VPORT_NEEDS_REG_VPI
)
785 lpfc_register_new_vport(phba
, vport
, ndlp
);
787 lpfc_issue_fabric_reglogin(vport
);
789 ndlp
->nlp_type
|= NLP_FABRIC
;
790 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_UNMAPPED_NODE
);
791 if ((!(vport
->fc_flag
& FC_VPORT_NEEDS_REG_VPI
)) &&
792 (vport
->vpi_state
& LPFC_VPI_REGISTERED
)) {
793 lpfc_start_fdiscs(phba
);
794 lpfc_do_scr_ns_plogi(phba
, vport
);
795 } else if (vport
->fc_flag
& FC_VFI_REGISTERED
)
796 lpfc_issue_init_vpi(vport
);
798 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
799 "3135 Need register VFI: (x%x/%x)\n",
800 vport
->fc_prevDID
, vport
->fc_myDID
);
801 lpfc_issue_reg_vfi(vport
);
808 * lpfc_cmpl_els_flogi_nport - Completion function for flogi to an N_Port
809 * @vport: pointer to a host virtual N_Port data structure.
810 * @ndlp: pointer to a node-list data structure.
811 * @sp: pointer to service parameter data structure.
813 * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback
814 * function to handle the completion of a Fabric Login (FLOGI) into an N_Port
815 * in a point-to-point topology. First, the @vport's N_Port Name is compared
816 * with the received N_Port Name: if the @vport's N_Port Name is greater than
817 * the received N_Port Name lexicographically, this node shall assign local
818 * N_Port ID (PT2PT_LocalID: 1) and remote N_Port ID (PT2PT_RemoteID: 2) and
819 * will send out Port Login (PLOGI) with the N_Port IDs assigned. Otherwise,
820 * this node shall just wait for the remote node to issue PLOGI and assign
828 lpfc_cmpl_els_flogi_nport(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
829 struct serv_parm
*sp
)
831 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
832 struct lpfc_hba
*phba
= vport
->phba
;
836 spin_lock_irq(shost
->host_lock
);
837 vport
->fc_flag
&= ~(FC_FABRIC
| FC_PUBLIC_LOOP
);
838 vport
->fc_flag
|= FC_PT2PT
;
839 spin_unlock_irq(shost
->host_lock
);
841 /* If physical FC port changed, unreg VFI and ALL VPIs / RPIs */
842 if ((phba
->sli_rev
== LPFC_SLI_REV4
) && phba
->fc_topology_changed
) {
843 lpfc_unregister_fcf_prep(phba
);
845 spin_lock_irq(shost
->host_lock
);
846 vport
->fc_flag
&= ~FC_VFI_REGISTERED
;
847 spin_unlock_irq(shost
->host_lock
);
848 phba
->fc_topology_changed
= 0;
851 rc
= memcmp(&vport
->fc_portname
, &sp
->portName
,
852 sizeof(vport
->fc_portname
));
855 /* This side will initiate the PLOGI */
856 spin_lock_irq(shost
->host_lock
);
857 vport
->fc_flag
|= FC_PT2PT_PLOGI
;
858 spin_unlock_irq(shost
->host_lock
);
861 * N_Port ID cannot be 0, set our Id to LocalID
862 * the other side will be RemoteID.
867 vport
->fc_myDID
= PT2PT_LocalID
;
869 /* Decrement ndlp reference count indicating that ndlp can be
870 * safely released when other references to it are done.
874 ndlp
= lpfc_findnode_did(vport
, PT2PT_RemoteID
);
877 * Cannot find existing Fabric ndlp, so allocate a
880 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
883 lpfc_nlp_init(vport
, ndlp
, PT2PT_RemoteID
);
884 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
885 ndlp
= lpfc_enable_node(vport
, ndlp
,
886 NLP_STE_UNUSED_NODE
);
891 memcpy(&ndlp
->nlp_portname
, &sp
->portName
,
892 sizeof(struct lpfc_name
));
893 memcpy(&ndlp
->nlp_nodename
, &sp
->nodeName
,
894 sizeof(struct lpfc_name
));
895 /* Set state will put ndlp onto node list if not already done */
896 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
897 spin_lock_irq(shost
->host_lock
);
898 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
899 spin_unlock_irq(shost
->host_lock
);
901 /* This side will wait for the PLOGI, decrement ndlp reference
902 * count indicating that ndlp can be released when other
903 * references to it are done.
907 /* If we are pt2pt with another NPort, force NPIV off! */
908 phba
->sli3_options
&= ~LPFC_SLI3_NPIV_ENABLED
;
910 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
914 lpfc_config_link(phba
, mbox
);
916 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_local_config_link
;
918 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
919 if (rc
== MBX_NOT_FINISHED
) {
920 mempool_free(mbox
, phba
->mbox_mem_pool
);
930 * lpfc_cmpl_els_flogi - Completion callback function for flogi
931 * @phba: pointer to lpfc hba data structure.
932 * @cmdiocb: pointer to lpfc command iocb data structure.
933 * @rspiocb: pointer to lpfc response iocb data structure.
935 * This routine is the top-level completion callback function for issuing
936 * a Fabric Login (FLOGI) command. If the response IOCB reported error,
937 * the lpfc_els_retry() routine shall be invoked to retry the FLOGI. If
938 * retry has been made (either immediately or delayed with lpfc_els_retry()
939 * returning 1), the command IOCB will be released and function returned.
940 * If the retry attempt has been given up (possibly reach the maximum
941 * number of retries), one additional decrement of ndlp reference shall be
942 * invoked before going out after releasing the command IOCB. This will
943 * actually release the remote node (Note, lpfc_els_free_iocb() will also
944 * invoke one decrement of ndlp reference count). If no error reported in
945 * the IOCB status, the command Port ID field is used to determine whether
946 * this is a point-to-point topology or a fabric topology: if the Port ID
947 * field is assigned, it is a fabric topology; otherwise, it is a
948 * point-to-point topology. The routine lpfc_cmpl_els_flogi_fabric() or
949 * lpfc_cmpl_els_flogi_nport() shall be invoked accordingly to handle the
950 * specific topology completion conditions.
953 lpfc_cmpl_els_flogi(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
954 struct lpfc_iocbq
*rspiocb
)
956 struct lpfc_vport
*vport
= cmdiocb
->vport
;
957 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
958 IOCB_t
*irsp
= &rspiocb
->iocb
;
959 struct lpfc_nodelist
*ndlp
= cmdiocb
->context1
;
960 struct lpfc_dmabuf
*pcmd
= cmdiocb
->context2
, *prsp
;
961 struct serv_parm
*sp
;
965 /* Check to see if link went down during discovery */
966 if (lpfc_els_chk_latt(vport
)) {
967 /* One additional decrement on node reference count to
968 * trigger the release of the node
974 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
975 "FLOGI cmpl: status:x%x/x%x state:x%x",
976 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
979 if (irsp
->ulpStatus
) {
981 * In case of FIP mode, perform roundrobin FCF failover
982 * due to new FCF discovery
984 if ((phba
->hba_flag
& HBA_FIP_SUPPORT
) &&
985 (phba
->fcf
.fcf_flag
& FCF_DISCOVERY
)) {
986 if (phba
->link_state
< LPFC_LINK_UP
)
987 goto stop_rr_fcf_flogi
;
988 if ((phba
->fcoe_cvl_eventtag_attn
==
989 phba
->fcoe_cvl_eventtag
) &&
990 (irsp
->ulpStatus
== IOSTAT_LOCAL_REJECT
) &&
991 ((irsp
->un
.ulpWord
[4] & IOERR_PARAM_MASK
) ==
993 goto stop_rr_fcf_flogi
;
995 phba
->fcoe_cvl_eventtag_attn
=
996 phba
->fcoe_cvl_eventtag
;
997 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
| LOG_ELS
,
998 "2611 FLOGI failed on FCF (x%x), "
999 "status:x%x/x%x, tmo:x%x, perform "
1000 "roundrobin FCF failover\n",
1001 phba
->fcf
.current_rec
.fcf_indx
,
1002 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
1004 lpfc_sli4_set_fcf_flogi_fail(phba
,
1005 phba
->fcf
.current_rec
.fcf_indx
);
1006 fcf_index
= lpfc_sli4_fcf_rr_next_index_get(phba
);
1007 rc
= lpfc_sli4_fcf_rr_next_proc(vport
, fcf_index
);
1014 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
1015 "2858 FLOGI failure Status:x%x/x%x TMO:x%x "
1017 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
1018 irsp
->ulpTimeout
, phba
->hba_flag
,
1019 phba
->fcf
.fcf_flag
);
1021 /* Check for retry */
1022 if (lpfc_els_retry(phba
, cmdiocb
, rspiocb
))
1026 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
1027 "0100 FLOGI failure Status:x%x/x%x TMO:x%x\n",
1028 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
1031 /* FLOGI failed, so there is no fabric */
1032 spin_lock_irq(shost
->host_lock
);
1033 vport
->fc_flag
&= ~(FC_FABRIC
| FC_PUBLIC_LOOP
);
1034 spin_unlock_irq(shost
->host_lock
);
1036 /* If private loop, then allow max outstanding els to be
1037 * LPFC_MAX_DISC_THREADS (32). Scanning in the case of no
1038 * alpa map would take too long otherwise.
1040 if (phba
->alpa_map
[0] == 0)
1041 vport
->cfg_discovery_threads
= LPFC_MAX_DISC_THREADS
;
1042 if ((phba
->sli_rev
== LPFC_SLI_REV4
) &&
1043 (!(vport
->fc_flag
& FC_VFI_REGISTERED
) ||
1044 (vport
->fc_prevDID
!= vport
->fc_myDID
) ||
1045 phba
->fc_topology_changed
)) {
1046 if (vport
->fc_flag
& FC_VFI_REGISTERED
) {
1047 if (phba
->fc_topology_changed
) {
1048 lpfc_unregister_fcf_prep(phba
);
1049 spin_lock_irq(shost
->host_lock
);
1050 vport
->fc_flag
&= ~FC_VFI_REGISTERED
;
1051 spin_unlock_irq(shost
->host_lock
);
1052 phba
->fc_topology_changed
= 0;
1054 lpfc_sli4_unreg_all_rpis(vport
);
1058 /* Do not register VFI if the driver aborted FLOGI */
1059 if (!lpfc_error_lost_link(irsp
))
1060 lpfc_issue_reg_vfi(vport
);
1066 spin_lock_irq(shost
->host_lock
);
1067 vport
->fc_flag
&= ~FC_VPORT_CVL_RCVD
;
1068 vport
->fc_flag
&= ~FC_VPORT_LOGO_RCVD
;
1069 spin_unlock_irq(shost
->host_lock
);
1072 * The FLogI succeeded. Sync the data for the CPU before
1075 prsp
= list_get_first(&pcmd
->list
, struct lpfc_dmabuf
, list
);
1078 sp
= prsp
->virt
+ sizeof(uint32_t);
1080 /* FLOGI completes successfully */
1081 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
1082 "0101 FLOGI completes successfully, I/O tag:x%x, "
1083 "Data: x%x x%x x%x x%x x%x x%x\n", cmdiocb
->iotag
,
1084 irsp
->un
.ulpWord
[4], sp
->cmn
.e_d_tov
,
1085 sp
->cmn
.w2
.r_a_tov
, sp
->cmn
.edtovResolution
,
1086 vport
->port_state
, vport
->fc_flag
);
1088 if (vport
->port_state
== LPFC_FLOGI
) {
1090 * If Common Service Parameters indicate Nport
1091 * we are point to point, if Fport we are Fabric.
1094 rc
= lpfc_cmpl_els_flogi_fabric(vport
, ndlp
, sp
, irsp
);
1095 else if (!(phba
->hba_flag
& HBA_FCOE_MODE
))
1096 rc
= lpfc_cmpl_els_flogi_nport(vport
, ndlp
, sp
);
1098 lpfc_printf_vlog(vport
, KERN_ERR
,
1100 "2831 FLOGI response with cleared Fabric "
1101 "bit fcf_index 0x%x "
1102 "Switch Name %02x%02x%02x%02x%02x%02x%02x%02x "
1104 "%02x%02x%02x%02x%02x%02x%02x%02x\n",
1105 phba
->fcf
.current_rec
.fcf_indx
,
1106 phba
->fcf
.current_rec
.switch_name
[0],
1107 phba
->fcf
.current_rec
.switch_name
[1],
1108 phba
->fcf
.current_rec
.switch_name
[2],
1109 phba
->fcf
.current_rec
.switch_name
[3],
1110 phba
->fcf
.current_rec
.switch_name
[4],
1111 phba
->fcf
.current_rec
.switch_name
[5],
1112 phba
->fcf
.current_rec
.switch_name
[6],
1113 phba
->fcf
.current_rec
.switch_name
[7],
1114 phba
->fcf
.current_rec
.fabric_name
[0],
1115 phba
->fcf
.current_rec
.fabric_name
[1],
1116 phba
->fcf
.current_rec
.fabric_name
[2],
1117 phba
->fcf
.current_rec
.fabric_name
[3],
1118 phba
->fcf
.current_rec
.fabric_name
[4],
1119 phba
->fcf
.current_rec
.fabric_name
[5],
1120 phba
->fcf
.current_rec
.fabric_name
[6],
1121 phba
->fcf
.current_rec
.fabric_name
[7]);
1123 spin_lock_irq(&phba
->hbalock
);
1124 phba
->fcf
.fcf_flag
&= ~FCF_DISCOVERY
;
1125 phba
->hba_flag
&= ~(FCF_RR_INPROG
| HBA_DEVLOSS_TMO
);
1126 spin_unlock_irq(&phba
->hbalock
);
1130 /* Mark the FCF discovery process done */
1131 if (phba
->hba_flag
& HBA_FIP_SUPPORT
)
1132 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_FIP
|
1134 "2769 FLOGI to FCF (x%x) "
1135 "completed successfully\n",
1136 phba
->fcf
.current_rec
.fcf_indx
);
1137 spin_lock_irq(&phba
->hbalock
);
1138 phba
->fcf
.fcf_flag
&= ~FCF_DISCOVERY
;
1139 phba
->hba_flag
&= ~(FCF_RR_INPROG
| HBA_DEVLOSS_TMO
);
1140 spin_unlock_irq(&phba
->hbalock
);
1146 spin_lock_irq(&phba
->hbalock
);
1147 phba
->fcf
.fcf_flag
&= ~FCF_DISCOVERY
;
1148 spin_unlock_irq(&phba
->hbalock
);
1152 if (!lpfc_error_lost_link(irsp
)) {
1153 /* FLOGI failed, so just use loop map to make discovery list */
1154 lpfc_disc_list_loopmap(vport
);
1156 /* Start discovery */
1157 lpfc_disc_start(vport
);
1158 } else if (((irsp
->ulpStatus
!= IOSTAT_LOCAL_REJECT
) ||
1159 (((irsp
->un
.ulpWord
[4] & IOERR_PARAM_MASK
) !=
1160 IOERR_SLI_ABORTED
) &&
1161 ((irsp
->un
.ulpWord
[4] & IOERR_PARAM_MASK
) !=
1162 IOERR_SLI_DOWN
))) &&
1163 (phba
->link_state
!= LPFC_CLEAR_LA
)) {
1164 /* If FLOGI failed enable link interrupt. */
1165 lpfc_issue_clear_la(phba
, vport
);
1168 lpfc_els_free_iocb(phba
, cmdiocb
);
1172 * lpfc_issue_els_flogi - Issue an flogi iocb command for a vport
1173 * @vport: pointer to a host virtual N_Port data structure.
1174 * @ndlp: pointer to a node-list data structure.
1175 * @retry: number of retries to the command IOCB.
1177 * This routine issues a Fabric Login (FLOGI) Request ELS command
1178 * for a @vport. The initiator service parameters are put into the payload
1179 * of the FLOGI Request IOCB and the top-level callback function pointer
1180 * to lpfc_cmpl_els_flogi() routine is put to the IOCB completion callback
1181 * function field. The lpfc_issue_fabric_iocb routine is invoked to send
1182 * out FLOGI ELS command with one outstanding fabric IOCB at a time.
1184 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
1185 * will be incremented by 1 for holding the ndlp and the reference to ndlp
1186 * will be stored into the context1 field of the IOCB for the completion
1187 * callback function to the FLOGI ELS command.
1190 * 0 - successfully issued flogi iocb for @vport
1191 * 1 - failed to issue flogi iocb for @vport
1194 lpfc_issue_els_flogi(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
1197 struct lpfc_hba
*phba
= vport
->phba
;
1198 struct serv_parm
*sp
;
1200 struct lpfc_iocbq
*elsiocb
;
1206 cmdsize
= (sizeof(uint32_t) + sizeof(struct serv_parm
));
1207 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
,
1208 ndlp
->nlp_DID
, ELS_CMD_FLOGI
);
1213 icmd
= &elsiocb
->iocb
;
1214 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
1216 /* For FLOGI request, remainder of payload is service parameters */
1217 *((uint32_t *) (pcmd
)) = ELS_CMD_FLOGI
;
1218 pcmd
+= sizeof(uint32_t);
1219 memcpy(pcmd
, &vport
->fc_sparam
, sizeof(struct serv_parm
));
1220 sp
= (struct serv_parm
*) pcmd
;
1222 /* Setup CSPs accordingly for Fabric */
1223 sp
->cmn
.e_d_tov
= 0;
1224 sp
->cmn
.w2
.r_a_tov
= 0;
1225 sp
->cmn
.virtual_fabric_support
= 0;
1226 sp
->cls1
.classValid
= 0;
1227 if (sp
->cmn
.fcphLow
< FC_PH3
)
1228 sp
->cmn
.fcphLow
= FC_PH3
;
1229 if (sp
->cmn
.fcphHigh
< FC_PH3
)
1230 sp
->cmn
.fcphHigh
= FC_PH3
;
1232 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
1233 if (bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
) ==
1234 LPFC_SLI_INTF_IF_TYPE_0
) {
1235 elsiocb
->iocb
.ulpCt_h
= ((SLI4_CT_FCFI
>> 1) & 1);
1236 elsiocb
->iocb
.ulpCt_l
= (SLI4_CT_FCFI
& 1);
1237 /* FLOGI needs to be 3 for WQE FCFI */
1238 /* Set the fcfi to the fcfi we registered with */
1239 elsiocb
->iocb
.ulpContext
= phba
->fcf
.fcfi
;
1241 /* Can't do SLI4 class2 without support sequence coalescing */
1242 sp
->cls2
.classValid
= 0;
1243 sp
->cls2
.seqDelivery
= 0;
1245 /* Historical, setting sequential-delivery bit for SLI3 */
1246 sp
->cls2
.seqDelivery
= (sp
->cls2
.classValid
) ? 1 : 0;
1247 sp
->cls3
.seqDelivery
= (sp
->cls3
.classValid
) ? 1 : 0;
1248 if (phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) {
1249 sp
->cmn
.request_multiple_Nport
= 1;
1250 /* For FLOGI, Let FLOGI rsp set the NPortID for VPI 0 */
1254 sp
->cmn
.request_multiple_Nport
= 0;
1257 if (phba
->fc_topology
!= LPFC_TOPOLOGY_LOOP
) {
1258 icmd
->un
.elsreq64
.myID
= 0;
1259 icmd
->un
.elsreq64
.fl
= 1;
1262 tmo
= phba
->fc_ratov
;
1263 phba
->fc_ratov
= LPFC_DISC_FLOGI_TMO
;
1264 lpfc_set_disctmo(vport
);
1265 phba
->fc_ratov
= tmo
;
1267 phba
->fc_stat
.elsXmitFLOGI
++;
1268 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_flogi
;
1270 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
1271 "Issue FLOGI: opt:x%x",
1272 phba
->sli3_options
, 0, 0);
1274 rc
= lpfc_issue_fabric_iocb(phba
, elsiocb
);
1275 if (rc
== IOCB_ERROR
) {
1276 lpfc_els_free_iocb(phba
, elsiocb
);
1283 * lpfc_els_abort_flogi - Abort all outstanding flogi iocbs
1284 * @phba: pointer to lpfc hba data structure.
1286 * This routine aborts all the outstanding Fabric Login (FLOGI) IOCBs
1287 * with a @phba. This routine walks all the outstanding IOCBs on the txcmplq
1288 * list and issues an abort IOCB commond on each outstanding IOCB that
1289 * contains a active Fabric_DID ndlp. Note that this function is to issue
1290 * the abort IOCB command on all the outstanding IOCBs, thus when this
1291 * function returns, it does not guarantee all the IOCBs are actually aborted.
1294 * 0 - Successfully issued abort iocb on all outstanding flogis (Always 0)
1297 lpfc_els_abort_flogi(struct lpfc_hba
*phba
)
1299 struct lpfc_sli_ring
*pring
;
1300 struct lpfc_iocbq
*iocb
, *next_iocb
;
1301 struct lpfc_nodelist
*ndlp
;
1304 /* Abort outstanding I/O on NPort <nlp_DID> */
1305 lpfc_printf_log(phba
, KERN_INFO
, LOG_DISCOVERY
,
1306 "0201 Abort outstanding I/O on NPort x%x\n",
1309 pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
1312 * Check the txcmplq for an iocb that matches the nport the driver is
1315 spin_lock_irq(&phba
->hbalock
);
1316 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txcmplq
, list
) {
1318 if (icmd
->ulpCommand
== CMD_ELS_REQUEST64_CR
) {
1319 ndlp
= (struct lpfc_nodelist
*)(iocb
->context1
);
1320 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
) &&
1321 (ndlp
->nlp_DID
== Fabric_DID
))
1322 lpfc_sli_issue_abort_iotag(phba
, pring
, iocb
);
1325 spin_unlock_irq(&phba
->hbalock
);
1331 * lpfc_initial_flogi - Issue an initial fabric login for a vport
1332 * @vport: pointer to a host virtual N_Port data structure.
1334 * This routine issues an initial Fabric Login (FLOGI) for the @vport
1335 * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from
1336 * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and
1337 * put it into the @vport's ndlp list. If an inactive ndlp found on the list,
1338 * it will just be enabled and made active. The lpfc_issue_els_flogi() routine
1339 * is then invoked with the @vport and the ndlp to perform the FLOGI for the
1343 * 0 - failed to issue initial flogi for @vport
1344 * 1 - successfully issued initial flogi for @vport
1347 lpfc_initial_flogi(struct lpfc_vport
*vport
)
1349 struct lpfc_hba
*phba
= vport
->phba
;
1350 struct lpfc_nodelist
*ndlp
;
1352 vport
->port_state
= LPFC_FLOGI
;
1353 lpfc_set_disctmo(vport
);
1355 /* First look for the Fabric ndlp */
1356 ndlp
= lpfc_findnode_did(vport
, Fabric_DID
);
1358 /* Cannot find existing Fabric ndlp, so allocate a new one */
1359 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
1362 lpfc_nlp_init(vport
, ndlp
, Fabric_DID
);
1363 /* Set the node type */
1364 ndlp
->nlp_type
|= NLP_FABRIC
;
1365 /* Put ndlp onto node list */
1366 lpfc_enqueue_node(vport
, ndlp
);
1367 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
1368 /* re-setup ndlp without removing from node list */
1369 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_UNUSED_NODE
);
1374 if (lpfc_issue_els_flogi(vport
, ndlp
, 0)) {
1375 /* This decrement of reference count to node shall kick off
1376 * the release of the node.
1385 * lpfc_initial_fdisc - Issue an initial fabric discovery for a vport
1386 * @vport: pointer to a host virtual N_Port data structure.
1388 * This routine issues an initial Fabric Discover (FDISC) for the @vport
1389 * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from
1390 * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and
1391 * put it into the @vport's ndlp list. If an inactive ndlp found on the list,
1392 * it will just be enabled and made active. The lpfc_issue_els_fdisc() routine
1393 * is then invoked with the @vport and the ndlp to perform the FDISC for the
1397 * 0 - failed to issue initial fdisc for @vport
1398 * 1 - successfully issued initial fdisc for @vport
1401 lpfc_initial_fdisc(struct lpfc_vport
*vport
)
1403 struct lpfc_hba
*phba
= vport
->phba
;
1404 struct lpfc_nodelist
*ndlp
;
1406 /* First look for the Fabric ndlp */
1407 ndlp
= lpfc_findnode_did(vport
, Fabric_DID
);
1409 /* Cannot find existing Fabric ndlp, so allocate a new one */
1410 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
1413 lpfc_nlp_init(vport
, ndlp
, Fabric_DID
);
1414 /* Put ndlp onto node list */
1415 lpfc_enqueue_node(vport
, ndlp
);
1416 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
1417 /* re-setup ndlp without removing from node list */
1418 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_UNUSED_NODE
);
1423 if (lpfc_issue_els_fdisc(vport
, ndlp
, 0)) {
1424 /* decrement node reference count to trigger the release of
1434 * lpfc_more_plogi - Check and issue remaining plogis for a vport
1435 * @vport: pointer to a host virtual N_Port data structure.
1437 * This routine checks whether there are more remaining Port Logins
1438 * (PLOGI) to be issued for the @vport. If so, it will invoke the routine
1439 * lpfc_els_disc_plogi() to go through the Node Port Recovery (NPR) nodes
1440 * to issue ELS PLOGIs up to the configured discover threads with the
1441 * @vport (@vport->cfg_discovery_threads). The function also decrement
1442 * the @vport's num_disc_node by 1 if it is not already 0.
1445 lpfc_more_plogi(struct lpfc_vport
*vport
)
1447 if (vport
->num_disc_nodes
)
1448 vport
->num_disc_nodes
--;
1450 /* Continue discovery with <num_disc_nodes> PLOGIs to go */
1451 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
1452 "0232 Continue discovery with %d PLOGIs to go "
1453 "Data: x%x x%x x%x\n",
1454 vport
->num_disc_nodes
, vport
->fc_plogi_cnt
,
1455 vport
->fc_flag
, vport
->port_state
);
1456 /* Check to see if there are more PLOGIs to be sent */
1457 if (vport
->fc_flag
& FC_NLP_MORE
)
1458 /* go thru NPR nodes and issue any remaining ELS PLOGIs */
1459 lpfc_els_disc_plogi(vport
);
1465 * lpfc_plogi_confirm_nport - Confirm pologi wwpn matches stored ndlp
1466 * @phba: pointer to lpfc hba data structure.
1467 * @prsp: pointer to response IOCB payload.
1468 * @ndlp: pointer to a node-list data structure.
1470 * This routine checks and indicates whether the WWPN of an N_Port, retrieved
1471 * from a PLOGI, matches the WWPN that is stored in the @ndlp for that N_POrt.
1472 * The following cases are considered N_Port confirmed:
1473 * 1) The N_Port is a Fabric ndlp; 2) The @ndlp is on vport list and matches
1474 * the WWPN of the N_Port logged into; 3) The @ndlp is not on vport list but
1475 * it does not have WWPN assigned either. If the WWPN is confirmed, the
1476 * pointer to the @ndlp will be returned. If the WWPN is not confirmed:
1477 * 1) if there is a node on vport list other than the @ndlp with the same
1478 * WWPN of the N_Port PLOGI logged into, the lpfc_unreg_rpi() will be invoked
1479 * on that node to release the RPI associated with the node; 2) if there is
1480 * no node found on vport list with the same WWPN of the N_Port PLOGI logged
1481 * into, a new node shall be allocated (or activated). In either case, the
1482 * parameters of the @ndlp shall be copied to the new_ndlp, the @ndlp shall
1483 * be released and the new_ndlp shall be put on to the vport node list and
1484 * its pointer returned as the confirmed node.
1486 * Note that before the @ndlp got "released", the keepDID from not-matching
1487 * or inactive "new_ndlp" on the vport node list is assigned to the nlp_DID
1488 * of the @ndlp. This is because the release of @ndlp is actually to put it
1489 * into an inactive state on the vport node list and the vport node list
1490 * management algorithm does not allow two node with a same DID.
1493 * pointer to the PLOGI N_Port @ndlp
1495 static struct lpfc_nodelist
*
1496 lpfc_plogi_confirm_nport(struct lpfc_hba
*phba
, uint32_t *prsp
,
1497 struct lpfc_nodelist
*ndlp
)
1499 struct lpfc_vport
*vport
= ndlp
->vport
;
1500 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
1501 struct lpfc_nodelist
*new_ndlp
;
1502 struct lpfc_rport_data
*rdata
;
1503 struct fc_rport
*rport
;
1504 struct serv_parm
*sp
;
1505 uint8_t name
[sizeof(struct lpfc_name
)];
1506 uint32_t rc
, keepDID
= 0, keep_nlp_flag
= 0;
1507 uint16_t keep_nlp_state
;
1510 unsigned long *active_rrqs_xri_bitmap
= NULL
;
1512 /* Fabric nodes can have the same WWPN so we don't bother searching
1513 * by WWPN. Just return the ndlp that was given to us.
1515 if (ndlp
->nlp_type
& NLP_FABRIC
)
1518 sp
= (struct serv_parm
*) ((uint8_t *) prsp
+ sizeof(uint32_t));
1519 memset(name
, 0, sizeof(struct lpfc_name
));
1521 /* Now we find out if the NPort we are logging into, matches the WWPN
1522 * we have for that ndlp. If not, we have some work to do.
1524 new_ndlp
= lpfc_findnode_wwpn(vport
, &sp
->portName
);
1526 if (new_ndlp
== ndlp
&& NLP_CHK_NODE_ACT(new_ndlp
))
1528 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
1529 active_rrqs_xri_bitmap
= mempool_alloc(phba
->active_rrq_pool
,
1531 if (active_rrqs_xri_bitmap
)
1532 memset(active_rrqs_xri_bitmap
, 0,
1533 phba
->cfg_rrq_xri_bitmap_sz
);
1536 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
1537 "3178 PLOGI confirm: ndlp %p x%x: new_ndlp %p\n",
1538 ndlp
, ndlp
->nlp_DID
, new_ndlp
);
1541 rc
= memcmp(&ndlp
->nlp_portname
, name
,
1542 sizeof(struct lpfc_name
));
1544 if (active_rrqs_xri_bitmap
)
1545 mempool_free(active_rrqs_xri_bitmap
,
1546 phba
->active_rrq_pool
);
1549 new_ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_ATOMIC
);
1551 if (active_rrqs_xri_bitmap
)
1552 mempool_free(active_rrqs_xri_bitmap
,
1553 phba
->active_rrq_pool
);
1556 lpfc_nlp_init(vport
, new_ndlp
, ndlp
->nlp_DID
);
1557 } else if (!NLP_CHK_NODE_ACT(new_ndlp
)) {
1558 rc
= memcmp(&ndlp
->nlp_portname
, name
,
1559 sizeof(struct lpfc_name
));
1561 if (active_rrqs_xri_bitmap
)
1562 mempool_free(active_rrqs_xri_bitmap
,
1563 phba
->active_rrq_pool
);
1566 new_ndlp
= lpfc_enable_node(vport
, new_ndlp
,
1567 NLP_STE_UNUSED_NODE
);
1569 if (active_rrqs_xri_bitmap
)
1570 mempool_free(active_rrqs_xri_bitmap
,
1571 phba
->active_rrq_pool
);
1574 keepDID
= new_ndlp
->nlp_DID
;
1575 if ((phba
->sli_rev
== LPFC_SLI_REV4
) && active_rrqs_xri_bitmap
)
1576 memcpy(active_rrqs_xri_bitmap
,
1577 new_ndlp
->active_rrqs_xri_bitmap
,
1578 phba
->cfg_rrq_xri_bitmap_sz
);
1580 keepDID
= new_ndlp
->nlp_DID
;
1581 if (phba
->sli_rev
== LPFC_SLI_REV4
&&
1582 active_rrqs_xri_bitmap
)
1583 memcpy(active_rrqs_xri_bitmap
,
1584 new_ndlp
->active_rrqs_xri_bitmap
,
1585 phba
->cfg_rrq_xri_bitmap_sz
);
1588 lpfc_unreg_rpi(vport
, new_ndlp
);
1589 new_ndlp
->nlp_DID
= ndlp
->nlp_DID
;
1590 new_ndlp
->nlp_prev_state
= ndlp
->nlp_prev_state
;
1591 if (phba
->sli_rev
== LPFC_SLI_REV4
)
1592 memcpy(new_ndlp
->active_rrqs_xri_bitmap
,
1593 ndlp
->active_rrqs_xri_bitmap
,
1594 phba
->cfg_rrq_xri_bitmap_sz
);
1596 spin_lock_irq(shost
->host_lock
);
1597 keep_nlp_flag
= new_ndlp
->nlp_flag
;
1598 new_ndlp
->nlp_flag
= ndlp
->nlp_flag
;
1599 ndlp
->nlp_flag
= keep_nlp_flag
;
1600 spin_unlock_irq(shost
->host_lock
);
1602 /* Set nlp_states accordingly */
1603 keep_nlp_state
= new_ndlp
->nlp_state
;
1604 lpfc_nlp_set_state(vport
, new_ndlp
, ndlp
->nlp_state
);
1606 /* Move this back to NPR state */
1607 if (memcmp(&ndlp
->nlp_portname
, name
, sizeof(struct lpfc_name
)) == 0) {
1608 /* The new_ndlp is replacing ndlp totally, so we need
1609 * to put ndlp on UNUSED list and try to free it.
1611 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
1612 "3179 PLOGI confirm NEW: %x %x\n",
1613 new_ndlp
->nlp_DID
, keepDID
);
1615 /* Fix up the rport accordingly */
1616 rport
= ndlp
->rport
;
1618 rdata
= rport
->dd_data
;
1619 if (rdata
->pnode
== ndlp
) {
1620 /* break the link before dropping the ref */
1623 rdata
->pnode
= lpfc_nlp_get(new_ndlp
);
1624 new_ndlp
->rport
= rport
;
1626 new_ndlp
->nlp_type
= ndlp
->nlp_type
;
1628 /* We shall actually free the ndlp with both nlp_DID and
1629 * nlp_portname fields equals 0 to avoid any ndlp on the
1630 * nodelist never to be used.
1632 if (ndlp
->nlp_DID
== 0) {
1633 spin_lock_irq(&phba
->ndlp_lock
);
1634 NLP_SET_FREE_REQ(ndlp
);
1635 spin_unlock_irq(&phba
->ndlp_lock
);
1638 /* Two ndlps cannot have the same did on the nodelist */
1639 ndlp
->nlp_DID
= keepDID
;
1640 if (phba
->sli_rev
== LPFC_SLI_REV4
&&
1641 active_rrqs_xri_bitmap
)
1642 memcpy(ndlp
->active_rrqs_xri_bitmap
,
1643 active_rrqs_xri_bitmap
,
1644 phba
->cfg_rrq_xri_bitmap_sz
);
1646 if (!NLP_CHK_NODE_ACT(ndlp
))
1647 lpfc_drop_node(vport
, ndlp
);
1650 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
1651 "3180 PLOGI confirm SWAP: %x %x\n",
1652 new_ndlp
->nlp_DID
, keepDID
);
1654 lpfc_unreg_rpi(vport
, ndlp
);
1656 /* Two ndlps cannot have the same did */
1657 ndlp
->nlp_DID
= keepDID
;
1658 if (phba
->sli_rev
== LPFC_SLI_REV4
&&
1659 active_rrqs_xri_bitmap
)
1660 memcpy(ndlp
->active_rrqs_xri_bitmap
,
1661 active_rrqs_xri_bitmap
,
1662 phba
->cfg_rrq_xri_bitmap_sz
);
1664 /* Since we are switching over to the new_ndlp,
1665 * reset the old ndlp state
1667 if ((ndlp
->nlp_state
== NLP_STE_UNMAPPED_NODE
) ||
1668 (ndlp
->nlp_state
== NLP_STE_MAPPED_NODE
))
1669 keep_nlp_state
= NLP_STE_NPR_NODE
;
1670 lpfc_nlp_set_state(vport
, ndlp
, keep_nlp_state
);
1672 /* Fix up the rport accordingly */
1673 rport
= ndlp
->rport
;
1675 rdata
= rport
->dd_data
;
1676 put_node
= rdata
->pnode
!= NULL
;
1677 put_rport
= ndlp
->rport
!= NULL
;
1678 rdata
->pnode
= NULL
;
1683 put_device(&rport
->dev
);
1686 if (phba
->sli_rev
== LPFC_SLI_REV4
&&
1687 active_rrqs_xri_bitmap
)
1688 mempool_free(active_rrqs_xri_bitmap
,
1689 phba
->active_rrq_pool
);
1694 * lpfc_end_rscn - Check and handle more rscn for a vport
1695 * @vport: pointer to a host virtual N_Port data structure.
1697 * This routine checks whether more Registration State Change
1698 * Notifications (RSCNs) came in while the discovery state machine was in
1699 * the FC_RSCN_MODE. If so, the lpfc_els_handle_rscn() routine will be
1700 * invoked to handle the additional RSCNs for the @vport. Otherwise, the
1701 * FC_RSCN_MODE bit will be cleared with the @vport to mark as the end of
1702 * handling the RSCNs.
1705 lpfc_end_rscn(struct lpfc_vport
*vport
)
1707 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
1709 if (vport
->fc_flag
& FC_RSCN_MODE
) {
1711 * Check to see if more RSCNs came in while we were
1712 * processing this one.
1714 if (vport
->fc_rscn_id_cnt
||
1715 (vport
->fc_flag
& FC_RSCN_DISCOVERY
) != 0)
1716 lpfc_els_handle_rscn(vport
);
1718 spin_lock_irq(shost
->host_lock
);
1719 vport
->fc_flag
&= ~FC_RSCN_MODE
;
1720 spin_unlock_irq(shost
->host_lock
);
1726 * lpfc_cmpl_els_rrq - Completion handled for els RRQs.
1727 * @phba: pointer to lpfc hba data structure.
1728 * @cmdiocb: pointer to lpfc command iocb data structure.
1729 * @rspiocb: pointer to lpfc response iocb data structure.
1731 * This routine will call the clear rrq function to free the rrq and
1732 * clear the xri's bit in the ndlp's xri_bitmap. If the ndlp does not
1733 * exist then the clear_rrq is still called because the rrq needs to
1738 lpfc_cmpl_els_rrq(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
1739 struct lpfc_iocbq
*rspiocb
)
1741 struct lpfc_vport
*vport
= cmdiocb
->vport
;
1743 struct lpfc_nodelist
*ndlp
;
1744 struct lpfc_node_rrq
*rrq
;
1746 /* we pass cmdiocb to state machine which needs rspiocb as well */
1747 rrq
= cmdiocb
->context_un
.rrq
;
1748 cmdiocb
->context_un
.rsp_iocb
= rspiocb
;
1750 irsp
= &rspiocb
->iocb
;
1751 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
1752 "RRQ cmpl: status:x%x/x%x did:x%x",
1753 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
1754 irsp
->un
.elsreq64
.remoteID
);
1756 ndlp
= lpfc_findnode_did(vport
, irsp
->un
.elsreq64
.remoteID
);
1757 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
) || ndlp
!= rrq
->ndlp
) {
1758 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
1759 "2882 RRQ completes to NPort x%x "
1760 "with no ndlp. Data: x%x x%x x%x\n",
1761 irsp
->un
.elsreq64
.remoteID
,
1762 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
1767 /* rrq completes to NPort <nlp_DID> */
1768 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
1769 "2880 RRQ completes to NPort x%x "
1770 "Data: x%x x%x x%x x%x x%x\n",
1771 ndlp
->nlp_DID
, irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
1772 irsp
->ulpTimeout
, rrq
->xritag
, rrq
->rxid
);
1774 if (irsp
->ulpStatus
) {
1775 /* Check for retry */
1776 /* RRQ failed Don't print the vport to vport rjts */
1777 if (irsp
->ulpStatus
!= IOSTAT_LS_RJT
||
1778 (((irsp
->un
.ulpWord
[4]) >> 16 != LSRJT_INVALID_CMD
) &&
1779 ((irsp
->un
.ulpWord
[4]) >> 16 != LSRJT_UNABLE_TPC
)) ||
1780 (phba
)->pport
->cfg_log_verbose
& LOG_ELS
)
1781 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
1782 "2881 RRQ failure DID:%06X Status:x%x/x%x\n",
1783 ndlp
->nlp_DID
, irsp
->ulpStatus
,
1784 irsp
->un
.ulpWord
[4]);
1788 lpfc_clr_rrq_active(phba
, rrq
->xritag
, rrq
);
1789 lpfc_els_free_iocb(phba
, cmdiocb
);
1793 * lpfc_cmpl_els_plogi - Completion callback function for plogi
1794 * @phba: pointer to lpfc hba data structure.
1795 * @cmdiocb: pointer to lpfc command iocb data structure.
1796 * @rspiocb: pointer to lpfc response iocb data structure.
1798 * This routine is the completion callback function for issuing the Port
1799 * Login (PLOGI) command. For PLOGI completion, there must be an active
1800 * ndlp on the vport node list that matches the remote node ID from the
1801 * PLOGI response IOCB. If such ndlp does not exist, the PLOGI is simply
1802 * ignored and command IOCB released. The PLOGI response IOCB status is
1803 * checked for error conditons. If there is error status reported, PLOGI
1804 * retry shall be attempted by invoking the lpfc_els_retry() routine.
1805 * Otherwise, the lpfc_plogi_confirm_nport() routine shall be invoked on
1806 * the ndlp and the NLP_EVT_CMPL_PLOGI state to the Discover State Machine
1807 * (DSM) is set for this PLOGI completion. Finally, it checks whether
1808 * there are additional N_Port nodes with the vport that need to perform
1809 * PLOGI. If so, the lpfc_more_plogi() routine is invoked to issue addition
1813 lpfc_cmpl_els_plogi(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
1814 struct lpfc_iocbq
*rspiocb
)
1816 struct lpfc_vport
*vport
= cmdiocb
->vport
;
1817 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
1819 struct lpfc_nodelist
*ndlp
;
1820 struct lpfc_dmabuf
*prsp
;
1823 /* we pass cmdiocb to state machine which needs rspiocb as well */
1824 cmdiocb
->context_un
.rsp_iocb
= rspiocb
;
1826 irsp
= &rspiocb
->iocb
;
1827 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
1828 "PLOGI cmpl: status:x%x/x%x did:x%x",
1829 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
1830 irsp
->un
.elsreq64
.remoteID
);
1832 ndlp
= lpfc_findnode_did(vport
, irsp
->un
.elsreq64
.remoteID
);
1833 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
)) {
1834 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
1835 "0136 PLOGI completes to NPort x%x "
1836 "with no ndlp. Data: x%x x%x x%x\n",
1837 irsp
->un
.elsreq64
.remoteID
,
1838 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
1843 /* Since ndlp can be freed in the disc state machine, note if this node
1844 * is being used during discovery.
1846 spin_lock_irq(shost
->host_lock
);
1847 disc
= (ndlp
->nlp_flag
& NLP_NPR_2B_DISC
);
1848 ndlp
->nlp_flag
&= ~NLP_NPR_2B_DISC
;
1849 spin_unlock_irq(shost
->host_lock
);
1852 /* PLOGI completes to NPort <nlp_DID> */
1853 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
1854 "0102 PLOGI completes to NPort x%x "
1855 "Data: x%x x%x x%x x%x x%x\n",
1856 ndlp
->nlp_DID
, irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
1857 irsp
->ulpTimeout
, disc
, vport
->num_disc_nodes
);
1858 /* Check to see if link went down during discovery */
1859 if (lpfc_els_chk_latt(vport
)) {
1860 spin_lock_irq(shost
->host_lock
);
1861 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
1862 spin_unlock_irq(shost
->host_lock
);
1866 if (irsp
->ulpStatus
) {
1867 /* Check for retry */
1868 if (lpfc_els_retry(phba
, cmdiocb
, rspiocb
)) {
1869 /* ELS command is being retried */
1871 spin_lock_irq(shost
->host_lock
);
1872 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
1873 spin_unlock_irq(shost
->host_lock
);
1877 /* PLOGI failed Don't print the vport to vport rjts */
1878 if (irsp
->ulpStatus
!= IOSTAT_LS_RJT
||
1879 (((irsp
->un
.ulpWord
[4]) >> 16 != LSRJT_INVALID_CMD
) &&
1880 ((irsp
->un
.ulpWord
[4]) >> 16 != LSRJT_UNABLE_TPC
)) ||
1881 (phba
)->pport
->cfg_log_verbose
& LOG_ELS
)
1882 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
1883 "2753 PLOGI failure DID:%06X Status:x%x/x%x\n",
1884 ndlp
->nlp_DID
, irsp
->ulpStatus
,
1885 irsp
->un
.ulpWord
[4]);
1886 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
1887 if (lpfc_error_lost_link(irsp
))
1888 rc
= NLP_STE_FREED_NODE
;
1890 rc
= lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
,
1891 NLP_EVT_CMPL_PLOGI
);
1893 /* Good status, call state machine */
1894 prsp
= list_entry(((struct lpfc_dmabuf
*)
1895 cmdiocb
->context2
)->list
.next
,
1896 struct lpfc_dmabuf
, list
);
1897 ndlp
= lpfc_plogi_confirm_nport(phba
, prsp
->virt
, ndlp
);
1898 rc
= lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
,
1899 NLP_EVT_CMPL_PLOGI
);
1902 if (disc
&& vport
->num_disc_nodes
) {
1903 /* Check to see if there are more PLOGIs to be sent */
1904 lpfc_more_plogi(vport
);
1906 if (vport
->num_disc_nodes
== 0) {
1907 spin_lock_irq(shost
->host_lock
);
1908 vport
->fc_flag
&= ~FC_NDISC_ACTIVE
;
1909 spin_unlock_irq(shost
->host_lock
);
1911 lpfc_can_disctmo(vport
);
1912 lpfc_end_rscn(vport
);
1917 lpfc_els_free_iocb(phba
, cmdiocb
);
1922 * lpfc_issue_els_plogi - Issue an plogi iocb command for a vport
1923 * @vport: pointer to a host virtual N_Port data structure.
1924 * @did: destination port identifier.
1925 * @retry: number of retries to the command IOCB.
1927 * This routine issues a Port Login (PLOGI) command to a remote N_Port
1928 * (with the @did) for a @vport. Before issuing a PLOGI to a remote N_Port,
1929 * the ndlp with the remote N_Port DID must exist on the @vport's ndlp list.
1930 * This routine constructs the proper feilds of the PLOGI IOCB and invokes
1931 * the lpfc_sli_issue_iocb() routine to send out PLOGI ELS command.
1933 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
1934 * will be incremented by 1 for holding the ndlp and the reference to ndlp
1935 * will be stored into the context1 field of the IOCB for the completion
1936 * callback function to the PLOGI ELS command.
1939 * 0 - Successfully issued a plogi for @vport
1940 * 1 - failed to issue a plogi for @vport
1943 lpfc_issue_els_plogi(struct lpfc_vport
*vport
, uint32_t did
, uint8_t retry
)
1945 struct lpfc_hba
*phba
= vport
->phba
;
1946 struct serv_parm
*sp
;
1947 struct lpfc_nodelist
*ndlp
;
1948 struct lpfc_iocbq
*elsiocb
;
1953 ndlp
= lpfc_findnode_did(vport
, did
);
1954 if (ndlp
&& !NLP_CHK_NODE_ACT(ndlp
))
1957 /* If ndlp is not NULL, we will bump the reference count on it */
1958 cmdsize
= (sizeof(uint32_t) + sizeof(struct serv_parm
));
1959 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
, did
,
1964 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
1966 /* For PLOGI request, remainder of payload is service parameters */
1967 *((uint32_t *) (pcmd
)) = ELS_CMD_PLOGI
;
1968 pcmd
+= sizeof(uint32_t);
1969 memcpy(pcmd
, &vport
->fc_sparam
, sizeof(struct serv_parm
));
1970 sp
= (struct serv_parm
*) pcmd
;
1973 * If we are a N-port connected to a Fabric, fix-up paramm's so logins
1974 * to device on remote loops work.
1976 if ((vport
->fc_flag
& FC_FABRIC
) && !(vport
->fc_flag
& FC_PUBLIC_LOOP
))
1977 sp
->cmn
.altBbCredit
= 1;
1979 if (sp
->cmn
.fcphLow
< FC_PH_4_3
)
1980 sp
->cmn
.fcphLow
= FC_PH_4_3
;
1982 if (sp
->cmn
.fcphHigh
< FC_PH3
)
1983 sp
->cmn
.fcphHigh
= FC_PH3
;
1985 sp
->cmn
.valid_vendor_ver_level
= 0;
1986 memset(sp
->vendorVersion
, 0, sizeof(sp
->vendorVersion
));
1988 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
1989 "Issue PLOGI: did:x%x",
1992 phba
->fc_stat
.elsXmitPLOGI
++;
1993 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_plogi
;
1994 ret
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
1996 if (ret
== IOCB_ERROR
) {
1997 lpfc_els_free_iocb(phba
, elsiocb
);
2004 * lpfc_cmpl_els_prli - Completion callback function for prli
2005 * @phba: pointer to lpfc hba data structure.
2006 * @cmdiocb: pointer to lpfc command iocb data structure.
2007 * @rspiocb: pointer to lpfc response iocb data structure.
2009 * This routine is the completion callback function for a Process Login
2010 * (PRLI) ELS command. The PRLI response IOCB status is checked for error
2011 * status. If there is error status reported, PRLI retry shall be attempted
2012 * by invoking the lpfc_els_retry() routine. Otherwise, the state
2013 * NLP_EVT_CMPL_PRLI is sent to the Discover State Machine (DSM) for this
2014 * ndlp to mark the PRLI completion.
2017 lpfc_cmpl_els_prli(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
2018 struct lpfc_iocbq
*rspiocb
)
2020 struct lpfc_vport
*vport
= cmdiocb
->vport
;
2021 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2023 struct lpfc_nodelist
*ndlp
;
2025 /* we pass cmdiocb to state machine which needs rspiocb as well */
2026 cmdiocb
->context_un
.rsp_iocb
= rspiocb
;
2028 irsp
= &(rspiocb
->iocb
);
2029 ndlp
= (struct lpfc_nodelist
*) cmdiocb
->context1
;
2030 spin_lock_irq(shost
->host_lock
);
2031 ndlp
->nlp_flag
&= ~NLP_PRLI_SND
;
2032 spin_unlock_irq(shost
->host_lock
);
2034 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2035 "PRLI cmpl: status:x%x/x%x did:x%x",
2036 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
2038 /* PRLI completes to NPort <nlp_DID> */
2039 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
2040 "0103 PRLI completes to NPort x%x "
2041 "Data: x%x x%x x%x x%x\n",
2042 ndlp
->nlp_DID
, irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
2043 irsp
->ulpTimeout
, vport
->num_disc_nodes
);
2045 vport
->fc_prli_sent
--;
2046 /* Check to see if link went down during discovery */
2047 if (lpfc_els_chk_latt(vport
))
2050 if (irsp
->ulpStatus
) {
2051 /* Check for retry */
2052 if (lpfc_els_retry(phba
, cmdiocb
, rspiocb
)) {
2053 /* ELS command is being retried */
2057 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
2058 "2754 PRLI failure DID:%06X Status:x%x/x%x\n",
2059 ndlp
->nlp_DID
, irsp
->ulpStatus
,
2060 irsp
->un
.ulpWord
[4]);
2061 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
2062 if (lpfc_error_lost_link(irsp
))
2065 lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
,
2068 /* Good status, call state machine */
2069 lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
,
2072 lpfc_els_free_iocb(phba
, cmdiocb
);
2077 * lpfc_issue_els_prli - Issue a prli iocb command for a vport
2078 * @vport: pointer to a host virtual N_Port data structure.
2079 * @ndlp: pointer to a node-list data structure.
2080 * @retry: number of retries to the command IOCB.
2082 * This routine issues a Process Login (PRLI) ELS command for the
2083 * @vport. The PRLI service parameters are set up in the payload of the
2084 * PRLI Request command and the pointer to lpfc_cmpl_els_prli() routine
2085 * is put to the IOCB completion callback func field before invoking the
2086 * routine lpfc_sli_issue_iocb() to send out PRLI command.
2088 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2089 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2090 * will be stored into the context1 field of the IOCB for the completion
2091 * callback function to the PRLI ELS command.
2094 * 0 - successfully issued prli iocb command for @vport
2095 * 1 - failed to issue prli iocb command for @vport
2098 lpfc_issue_els_prli(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
2101 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2102 struct lpfc_hba
*phba
= vport
->phba
;
2104 struct lpfc_iocbq
*elsiocb
;
2108 cmdsize
= (sizeof(uint32_t) + sizeof(PRLI
));
2109 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
,
2110 ndlp
->nlp_DID
, ELS_CMD_PRLI
);
2114 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
2116 /* For PRLI request, remainder of payload is service parameters */
2117 memset(pcmd
, 0, (sizeof(PRLI
) + sizeof(uint32_t)));
2118 *((uint32_t *) (pcmd
)) = ELS_CMD_PRLI
;
2119 pcmd
+= sizeof(uint32_t);
2121 /* For PRLI, remainder of payload is PRLI parameter page */
2122 npr
= (PRLI
*) pcmd
;
2124 * If our firmware version is 3.20 or later,
2125 * set the following bits for FC-TAPE support.
2127 if (phba
->vpd
.rev
.feaLevelHigh
>= 0x02) {
2128 npr
->ConfmComplAllowed
= 1;
2130 npr
->TaskRetryIdReq
= 1;
2132 npr
->estabImagePair
= 1;
2133 npr
->readXferRdyDis
= 1;
2134 if (vport
->cfg_first_burst_size
)
2135 npr
->writeXferRdyDis
= 1;
2137 /* For FCP support */
2138 npr
->prliType
= PRLI_FCP_TYPE
;
2139 npr
->initiatorFunc
= 1;
2141 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2142 "Issue PRLI: did:x%x",
2143 ndlp
->nlp_DID
, 0, 0);
2145 phba
->fc_stat
.elsXmitPRLI
++;
2146 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_prli
;
2147 spin_lock_irq(shost
->host_lock
);
2148 ndlp
->nlp_flag
|= NLP_PRLI_SND
;
2149 spin_unlock_irq(shost
->host_lock
);
2150 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) ==
2152 spin_lock_irq(shost
->host_lock
);
2153 ndlp
->nlp_flag
&= ~NLP_PRLI_SND
;
2154 spin_unlock_irq(shost
->host_lock
);
2155 lpfc_els_free_iocb(phba
, elsiocb
);
2158 vport
->fc_prli_sent
++;
2163 * lpfc_rscn_disc - Perform rscn discovery for a vport
2164 * @vport: pointer to a host virtual N_Port data structure.
2166 * This routine performs Registration State Change Notification (RSCN)
2167 * discovery for a @vport. If the @vport's node port recovery count is not
2168 * zero, it will invoke the lpfc_els_disc_plogi() to perform PLOGI for all
2169 * the nodes that need recovery. If none of the PLOGI were needed through
2170 * the lpfc_els_disc_plogi() routine, the lpfc_end_rscn() routine shall be
2171 * invoked to check and handle possible more RSCN came in during the period
2172 * of processing the current ones.
2175 lpfc_rscn_disc(struct lpfc_vport
*vport
)
2177 lpfc_can_disctmo(vport
);
2179 /* RSCN discovery */
2180 /* go thru NPR nodes and issue ELS PLOGIs */
2181 if (vport
->fc_npr_cnt
)
2182 if (lpfc_els_disc_plogi(vport
))
2185 lpfc_end_rscn(vport
);
2189 * lpfc_adisc_done - Complete the adisc phase of discovery
2190 * @vport: pointer to lpfc_vport hba data structure that finished all ADISCs.
2192 * This function is called when the final ADISC is completed during discovery.
2193 * This function handles clearing link attention or issuing reg_vpi depending
2194 * on whether npiv is enabled. This function also kicks off the PLOGI phase of
2196 * This function is called with no locks held.
2199 lpfc_adisc_done(struct lpfc_vport
*vport
)
2201 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2202 struct lpfc_hba
*phba
= vport
->phba
;
2205 * For NPIV, cmpl_reg_vpi will set port_state to READY,
2206 * and continue discovery.
2208 if ((phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
2209 !(vport
->fc_flag
& FC_RSCN_MODE
) &&
2210 (phba
->sli_rev
< LPFC_SLI_REV4
)) {
2211 /* The ADISCs are complete. Doesn't matter if they
2212 * succeeded or failed because the ADISC completion
2213 * routine guarantees to call the state machine and
2214 * the RPI is either unregistered (failed ADISC response)
2215 * or the RPI is still valid and the node is marked
2216 * mapped for a target. The exchanges should be in the
2217 * correct state. This code is specific to SLI3.
2219 lpfc_issue_clear_la(phba
, vport
);
2220 lpfc_issue_reg_vpi(phba
, vport
);
2224 * For SLI2, we need to set port_state to READY
2225 * and continue discovery.
2227 if (vport
->port_state
< LPFC_VPORT_READY
) {
2228 /* If we get here, there is nothing to ADISC */
2229 lpfc_issue_clear_la(phba
, vport
);
2230 if (!(vport
->fc_flag
& FC_ABORT_DISCOVERY
)) {
2231 vport
->num_disc_nodes
= 0;
2232 /* go thru NPR list, issue ELS PLOGIs */
2233 if (vport
->fc_npr_cnt
)
2234 lpfc_els_disc_plogi(vport
);
2235 if (!vport
->num_disc_nodes
) {
2236 spin_lock_irq(shost
->host_lock
);
2237 vport
->fc_flag
&= ~FC_NDISC_ACTIVE
;
2238 spin_unlock_irq(shost
->host_lock
);
2239 lpfc_can_disctmo(vport
);
2240 lpfc_end_rscn(vport
);
2243 vport
->port_state
= LPFC_VPORT_READY
;
2245 lpfc_rscn_disc(vport
);
2249 * lpfc_more_adisc - Issue more adisc as needed
2250 * @vport: pointer to a host virtual N_Port data structure.
2252 * This routine determines whether there are more ndlps on a @vport
2253 * node list need to have Address Discover (ADISC) issued. If so, it will
2254 * invoke the lpfc_els_disc_adisc() routine to issue ADISC on the @vport's
2255 * remaining nodes which need to have ADISC sent.
2258 lpfc_more_adisc(struct lpfc_vport
*vport
)
2260 if (vport
->num_disc_nodes
)
2261 vport
->num_disc_nodes
--;
2262 /* Continue discovery with <num_disc_nodes> ADISCs to go */
2263 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
2264 "0210 Continue discovery with %d ADISCs to go "
2265 "Data: x%x x%x x%x\n",
2266 vport
->num_disc_nodes
, vport
->fc_adisc_cnt
,
2267 vport
->fc_flag
, vport
->port_state
);
2268 /* Check to see if there are more ADISCs to be sent */
2269 if (vport
->fc_flag
& FC_NLP_MORE
) {
2270 lpfc_set_disctmo(vport
);
2271 /* go thru NPR nodes and issue any remaining ELS ADISCs */
2272 lpfc_els_disc_adisc(vport
);
2274 if (!vport
->num_disc_nodes
)
2275 lpfc_adisc_done(vport
);
2280 * lpfc_cmpl_els_adisc - Completion callback function for adisc
2281 * @phba: pointer to lpfc hba data structure.
2282 * @cmdiocb: pointer to lpfc command iocb data structure.
2283 * @rspiocb: pointer to lpfc response iocb data structure.
2285 * This routine is the completion function for issuing the Address Discover
2286 * (ADISC) command. It first checks to see whether link went down during
2287 * the discovery process. If so, the node will be marked as node port
2288 * recovery for issuing discover IOCB by the link attention handler and
2289 * exit. Otherwise, the response status is checked. If error was reported
2290 * in the response status, the ADISC command shall be retried by invoking
2291 * the lpfc_els_retry() routine. Otherwise, if no error was reported in
2292 * the response status, the state machine is invoked to set transition
2293 * with respect to NLP_EVT_CMPL_ADISC event.
2296 lpfc_cmpl_els_adisc(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
2297 struct lpfc_iocbq
*rspiocb
)
2299 struct lpfc_vport
*vport
= cmdiocb
->vport
;
2300 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2302 struct lpfc_nodelist
*ndlp
;
2305 /* we pass cmdiocb to state machine which needs rspiocb as well */
2306 cmdiocb
->context_un
.rsp_iocb
= rspiocb
;
2308 irsp
= &(rspiocb
->iocb
);
2309 ndlp
= (struct lpfc_nodelist
*) cmdiocb
->context1
;
2311 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2312 "ADISC cmpl: status:x%x/x%x did:x%x",
2313 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
2316 /* Since ndlp can be freed in the disc state machine, note if this node
2317 * is being used during discovery.
2319 spin_lock_irq(shost
->host_lock
);
2320 disc
= (ndlp
->nlp_flag
& NLP_NPR_2B_DISC
);
2321 ndlp
->nlp_flag
&= ~(NLP_ADISC_SND
| NLP_NPR_2B_DISC
);
2322 spin_unlock_irq(shost
->host_lock
);
2323 /* ADISC completes to NPort <nlp_DID> */
2324 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
2325 "0104 ADISC completes to NPort x%x "
2326 "Data: x%x x%x x%x x%x x%x\n",
2327 ndlp
->nlp_DID
, irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
2328 irsp
->ulpTimeout
, disc
, vport
->num_disc_nodes
);
2329 /* Check to see if link went down during discovery */
2330 if (lpfc_els_chk_latt(vport
)) {
2331 spin_lock_irq(shost
->host_lock
);
2332 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
2333 spin_unlock_irq(shost
->host_lock
);
2337 if (irsp
->ulpStatus
) {
2338 /* Check for retry */
2339 if (lpfc_els_retry(phba
, cmdiocb
, rspiocb
)) {
2340 /* ELS command is being retried */
2342 spin_lock_irq(shost
->host_lock
);
2343 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
2344 spin_unlock_irq(shost
->host_lock
);
2345 lpfc_set_disctmo(vport
);
2350 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
2351 "2755 ADISC failure DID:%06X Status:x%x/x%x\n",
2352 ndlp
->nlp_DID
, irsp
->ulpStatus
,
2353 irsp
->un
.ulpWord
[4]);
2354 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
2355 if (!lpfc_error_lost_link(irsp
))
2356 lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
,
2357 NLP_EVT_CMPL_ADISC
);
2359 /* Good status, call state machine */
2360 lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
,
2361 NLP_EVT_CMPL_ADISC
);
2363 /* Check to see if there are more ADISCs to be sent */
2364 if (disc
&& vport
->num_disc_nodes
)
2365 lpfc_more_adisc(vport
);
2367 lpfc_els_free_iocb(phba
, cmdiocb
);
2372 * lpfc_issue_els_adisc - Issue an address discover iocb to an node on a vport
2373 * @vport: pointer to a virtual N_Port data structure.
2374 * @ndlp: pointer to a node-list data structure.
2375 * @retry: number of retries to the command IOCB.
2377 * This routine issues an Address Discover (ADISC) for an @ndlp on a
2378 * @vport. It prepares the payload of the ADISC ELS command, updates the
2379 * and states of the ndlp, and invokes the lpfc_sli_issue_iocb() routine
2380 * to issue the ADISC ELS command.
2382 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2383 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2384 * will be stored into the context1 field of the IOCB for the completion
2385 * callback function to the ADISC ELS command.
2388 * 0 - successfully issued adisc
2389 * 1 - failed to issue adisc
2392 lpfc_issue_els_adisc(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
2395 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2396 struct lpfc_hba
*phba
= vport
->phba
;
2398 struct lpfc_iocbq
*elsiocb
;
2402 cmdsize
= (sizeof(uint32_t) + sizeof(ADISC
));
2403 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
,
2404 ndlp
->nlp_DID
, ELS_CMD_ADISC
);
2408 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
2410 /* For ADISC request, remainder of payload is service parameters */
2411 *((uint32_t *) (pcmd
)) = ELS_CMD_ADISC
;
2412 pcmd
+= sizeof(uint32_t);
2414 /* Fill in ADISC payload */
2415 ap
= (ADISC
*) pcmd
;
2416 ap
->hardAL_PA
= phba
->fc_pref_ALPA
;
2417 memcpy(&ap
->portName
, &vport
->fc_portname
, sizeof(struct lpfc_name
));
2418 memcpy(&ap
->nodeName
, &vport
->fc_nodename
, sizeof(struct lpfc_name
));
2419 ap
->DID
= be32_to_cpu(vport
->fc_myDID
);
2421 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2422 "Issue ADISC: did:x%x",
2423 ndlp
->nlp_DID
, 0, 0);
2425 phba
->fc_stat
.elsXmitADISC
++;
2426 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_adisc
;
2427 spin_lock_irq(shost
->host_lock
);
2428 ndlp
->nlp_flag
|= NLP_ADISC_SND
;
2429 spin_unlock_irq(shost
->host_lock
);
2430 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) ==
2432 spin_lock_irq(shost
->host_lock
);
2433 ndlp
->nlp_flag
&= ~NLP_ADISC_SND
;
2434 spin_unlock_irq(shost
->host_lock
);
2435 lpfc_els_free_iocb(phba
, elsiocb
);
2442 * lpfc_cmpl_els_logo - Completion callback function for logo
2443 * @phba: pointer to lpfc hba data structure.
2444 * @cmdiocb: pointer to lpfc command iocb data structure.
2445 * @rspiocb: pointer to lpfc response iocb data structure.
2447 * This routine is the completion function for issuing the ELS Logout (LOGO)
2448 * command. If no error status was reported from the LOGO response, the
2449 * state machine of the associated ndlp shall be invoked for transition with
2450 * respect to NLP_EVT_CMPL_LOGO event. Otherwise, if error status was reported,
2451 * the lpfc_els_retry() routine will be invoked to retry the LOGO command.
2454 lpfc_cmpl_els_logo(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
2455 struct lpfc_iocbq
*rspiocb
)
2457 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) cmdiocb
->context1
;
2458 struct lpfc_vport
*vport
= ndlp
->vport
;
2459 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2461 struct lpfcMboxq
*mbox
;
2462 unsigned long flags
;
2463 uint32_t skip_recovery
= 0;
2465 /* we pass cmdiocb to state machine which needs rspiocb as well */
2466 cmdiocb
->context_un
.rsp_iocb
= rspiocb
;
2468 irsp
= &(rspiocb
->iocb
);
2469 spin_lock_irq(shost
->host_lock
);
2470 ndlp
->nlp_flag
&= ~NLP_LOGO_SND
;
2471 spin_unlock_irq(shost
->host_lock
);
2473 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2474 "LOGO cmpl: status:x%x/x%x did:x%x",
2475 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
2478 /* LOGO completes to NPort <nlp_DID> */
2479 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
2480 "0105 LOGO completes to NPort x%x "
2481 "Data: x%x x%x x%x x%x\n",
2482 ndlp
->nlp_DID
, irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
2483 irsp
->ulpTimeout
, vport
->num_disc_nodes
);
2485 if (lpfc_els_chk_latt(vport
)) {
2490 /* Check to see if link went down during discovery */
2491 if (ndlp
->nlp_flag
& NLP_TARGET_REMOVE
) {
2492 /* NLP_EVT_DEVICE_RM should unregister the RPI
2493 * which should abort all outstanding IOs.
2495 lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
,
2501 if (irsp
->ulpStatus
) {
2502 /* Check for retry */
2503 if (lpfc_els_retry(phba
, cmdiocb
, rspiocb
)) {
2504 /* ELS command is being retried */
2509 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
2510 "2756 LOGO failure DID:%06X Status:x%x/x%x\n",
2511 ndlp
->nlp_DID
, irsp
->ulpStatus
,
2512 irsp
->un
.ulpWord
[4]);
2513 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
2514 if (lpfc_error_lost_link(irsp
)) {
2520 /* Call state machine. This will unregister the rpi if needed. */
2521 lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
, NLP_EVT_CMPL_LOGO
);
2524 lpfc_els_free_iocb(phba
, cmdiocb
);
2525 /* If we are in pt2pt mode, we could rcv new S_ID on PLOGI */
2526 if ((vport
->fc_flag
& FC_PT2PT
) &&
2527 !(vport
->fc_flag
& FC_PT2PT_PLOGI
)) {
2528 phba
->pport
->fc_myDID
= 0;
2529 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
2531 lpfc_config_link(phba
, mbox
);
2532 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
2533 mbox
->vport
= vport
;
2534 if (lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
) ==
2536 mempool_free(mbox
, phba
->mbox_mem_pool
);
2543 * If the node is a target, the handling attempts to recover the port.
2544 * For any other port type, the rpi is unregistered as an implicit
2547 if ((ndlp
->nlp_type
& NLP_FCP_TARGET
) && (skip_recovery
== 0)) {
2548 lpfc_cancel_retry_delay_tmo(vport
, ndlp
);
2549 spin_lock_irqsave(shost
->host_lock
, flags
);
2550 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
2551 spin_unlock_irqrestore(shost
->host_lock
, flags
);
2553 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
2554 "3187 LOGO completes to NPort x%x: Start "
2555 "Recovery Data: x%x x%x x%x x%x\n",
2556 ndlp
->nlp_DID
, irsp
->ulpStatus
,
2557 irsp
->un
.ulpWord
[4], irsp
->ulpTimeout
,
2558 vport
->num_disc_nodes
);
2559 lpfc_disc_start(vport
);
2565 * lpfc_issue_els_logo - Issue a logo to an node on a vport
2566 * @vport: pointer to a virtual N_Port data structure.
2567 * @ndlp: pointer to a node-list data structure.
2568 * @retry: number of retries to the command IOCB.
2570 * This routine constructs and issues an ELS Logout (LOGO) iocb command
2571 * to a remote node, referred by an @ndlp on a @vport. It constructs the
2572 * payload of the IOCB, properly sets up the @ndlp state, and invokes the
2573 * lpfc_sli_issue_iocb() routine to send out the LOGO ELS command.
2575 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2576 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2577 * will be stored into the context1 field of the IOCB for the completion
2578 * callback function to the LOGO ELS command.
2581 * 0 - successfully issued logo
2582 * 1 - failed to issue logo
2585 lpfc_issue_els_logo(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
2588 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2589 struct lpfc_hba
*phba
= vport
->phba
;
2590 struct lpfc_iocbq
*elsiocb
;
2595 spin_lock_irq(shost
->host_lock
);
2596 if (ndlp
->nlp_flag
& NLP_LOGO_SND
) {
2597 spin_unlock_irq(shost
->host_lock
);
2600 spin_unlock_irq(shost
->host_lock
);
2602 cmdsize
= (2 * sizeof(uint32_t)) + sizeof(struct lpfc_name
);
2603 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
,
2604 ndlp
->nlp_DID
, ELS_CMD_LOGO
);
2608 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
2609 *((uint32_t *) (pcmd
)) = ELS_CMD_LOGO
;
2610 pcmd
+= sizeof(uint32_t);
2612 /* Fill in LOGO payload */
2613 *((uint32_t *) (pcmd
)) = be32_to_cpu(vport
->fc_myDID
);
2614 pcmd
+= sizeof(uint32_t);
2615 memcpy(pcmd
, &vport
->fc_portname
, sizeof(struct lpfc_name
));
2617 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2618 "Issue LOGO: did:x%x",
2619 ndlp
->nlp_DID
, 0, 0);
2622 * If we are issuing a LOGO, we may try to recover the remote NPort
2623 * by issuing a PLOGI later. Even though we issue ELS cmds by the
2624 * VPI, if we have a valid RPI, and that RPI gets unreg'ed while
2625 * that ELS command is in-flight, the HBA returns a IOERR_INVALID_RPI
2626 * for that ELS cmd. To avoid this situation, lets get rid of the
2627 * RPI right now, before any ELS cmds are sent.
2629 spin_lock_irq(shost
->host_lock
);
2630 ndlp
->nlp_flag
|= NLP_ISSUE_LOGO
;
2631 spin_unlock_irq(shost
->host_lock
);
2632 if (lpfc_unreg_rpi(vport
, ndlp
)) {
2633 lpfc_els_free_iocb(phba
, elsiocb
);
2637 phba
->fc_stat
.elsXmitLOGO
++;
2638 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_logo
;
2639 spin_lock_irq(shost
->host_lock
);
2640 ndlp
->nlp_flag
|= NLP_LOGO_SND
;
2641 ndlp
->nlp_flag
&= ~NLP_ISSUE_LOGO
;
2642 spin_unlock_irq(shost
->host_lock
);
2643 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
2645 if (rc
== IOCB_ERROR
) {
2646 spin_lock_irq(shost
->host_lock
);
2647 ndlp
->nlp_flag
&= ~NLP_LOGO_SND
;
2648 spin_unlock_irq(shost
->host_lock
);
2649 lpfc_els_free_iocb(phba
, elsiocb
);
2656 * lpfc_cmpl_els_cmd - Completion callback function for generic els command
2657 * @phba: pointer to lpfc hba data structure.
2658 * @cmdiocb: pointer to lpfc command iocb data structure.
2659 * @rspiocb: pointer to lpfc response iocb data structure.
2661 * This routine is a generic completion callback function for ELS commands.
2662 * Specifically, it is the callback function which does not need to perform
2663 * any command specific operations. It is currently used by the ELS command
2664 * issuing routines for the ELS State Change Request (SCR),
2665 * lpfc_issue_els_scr(), and the ELS Fibre Channel Address Resolution
2666 * Protocol Response (FARPR) routine, lpfc_issue_els_farpr(). Other than
2667 * certain debug loggings, this callback function simply invokes the
2668 * lpfc_els_chk_latt() routine to check whether link went down during the
2669 * discovery process.
2672 lpfc_cmpl_els_cmd(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
2673 struct lpfc_iocbq
*rspiocb
)
2675 struct lpfc_vport
*vport
= cmdiocb
->vport
;
2678 irsp
= &rspiocb
->iocb
;
2680 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2681 "ELS cmd cmpl: status:x%x/x%x did:x%x",
2682 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
2683 irsp
->un
.elsreq64
.remoteID
);
2684 /* ELS cmd tag <ulpIoTag> completes */
2685 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
2686 "0106 ELS cmd tag x%x completes Data: x%x x%x x%x\n",
2687 irsp
->ulpIoTag
, irsp
->ulpStatus
,
2688 irsp
->un
.ulpWord
[4], irsp
->ulpTimeout
);
2689 /* Check to see if link went down during discovery */
2690 lpfc_els_chk_latt(vport
);
2691 lpfc_els_free_iocb(phba
, cmdiocb
);
2696 * lpfc_issue_els_scr - Issue a scr to an node on a vport
2697 * @vport: pointer to a host virtual N_Port data structure.
2698 * @nportid: N_Port identifier to the remote node.
2699 * @retry: number of retries to the command IOCB.
2701 * This routine issues a State Change Request (SCR) to a fabric node
2702 * on a @vport. The remote node @nportid is passed into the function. It
2703 * first search the @vport node list to find the matching ndlp. If no such
2704 * ndlp is found, a new ndlp shall be created for this (SCR) purpose. An
2705 * IOCB is allocated, payload prepared, and the lpfc_sli_issue_iocb()
2706 * routine is invoked to send the SCR IOCB.
2708 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2709 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2710 * will be stored into the context1 field of the IOCB for the completion
2711 * callback function to the SCR ELS command.
2714 * 0 - Successfully issued scr command
2715 * 1 - Failed to issue scr command
2718 lpfc_issue_els_scr(struct lpfc_vport
*vport
, uint32_t nportid
, uint8_t retry
)
2720 struct lpfc_hba
*phba
= vport
->phba
;
2721 struct lpfc_iocbq
*elsiocb
;
2724 struct lpfc_nodelist
*ndlp
;
2726 cmdsize
= (sizeof(uint32_t) + sizeof(SCR
));
2728 ndlp
= lpfc_findnode_did(vport
, nportid
);
2730 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
2733 lpfc_nlp_init(vport
, ndlp
, nportid
);
2734 lpfc_enqueue_node(vport
, ndlp
);
2735 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
2736 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_UNUSED_NODE
);
2741 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
,
2742 ndlp
->nlp_DID
, ELS_CMD_SCR
);
2745 /* This will trigger the release of the node just
2752 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
2754 *((uint32_t *) (pcmd
)) = ELS_CMD_SCR
;
2755 pcmd
+= sizeof(uint32_t);
2757 /* For SCR, remainder of payload is SCR parameter page */
2758 memset(pcmd
, 0, sizeof(SCR
));
2759 ((SCR
*) pcmd
)->Function
= SCR_FUNC_FULL
;
2761 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2762 "Issue SCR: did:x%x",
2763 ndlp
->nlp_DID
, 0, 0);
2765 phba
->fc_stat
.elsXmitSCR
++;
2766 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_cmd
;
2767 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) ==
2769 /* The additional lpfc_nlp_put will cause the following
2770 * lpfc_els_free_iocb routine to trigger the rlease of
2774 lpfc_els_free_iocb(phba
, elsiocb
);
2777 /* This will cause the callback-function lpfc_cmpl_els_cmd to
2778 * trigger the release of node.
2786 * lpfc_issue_els_farpr - Issue a farp to an node on a vport
2787 * @vport: pointer to a host virtual N_Port data structure.
2788 * @nportid: N_Port identifier to the remote node.
2789 * @retry: number of retries to the command IOCB.
2791 * This routine issues a Fibre Channel Address Resolution Response
2792 * (FARPR) to a node on a vport. The remote node N_Port identifier (@nportid)
2793 * is passed into the function. It first search the @vport node list to find
2794 * the matching ndlp. If no such ndlp is found, a new ndlp shall be created
2795 * for this (FARPR) purpose. An IOCB is allocated, payload prepared, and the
2796 * lpfc_sli_issue_iocb() routine is invoked to send the FARPR ELS command.
2798 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2799 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2800 * will be stored into the context1 field of the IOCB for the completion
2801 * callback function to the PARPR ELS command.
2804 * 0 - Successfully issued farpr command
2805 * 1 - Failed to issue farpr command
2808 lpfc_issue_els_farpr(struct lpfc_vport
*vport
, uint32_t nportid
, uint8_t retry
)
2810 struct lpfc_hba
*phba
= vport
->phba
;
2811 struct lpfc_iocbq
*elsiocb
;
2816 struct lpfc_nodelist
*ondlp
;
2817 struct lpfc_nodelist
*ndlp
;
2819 cmdsize
= (sizeof(uint32_t) + sizeof(FARP
));
2821 ndlp
= lpfc_findnode_did(vport
, nportid
);
2823 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
2826 lpfc_nlp_init(vport
, ndlp
, nportid
);
2827 lpfc_enqueue_node(vport
, ndlp
);
2828 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
2829 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_UNUSED_NODE
);
2834 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
,
2835 ndlp
->nlp_DID
, ELS_CMD_RNID
);
2837 /* This will trigger the release of the node just
2844 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
2846 *((uint32_t *) (pcmd
)) = ELS_CMD_FARPR
;
2847 pcmd
+= sizeof(uint32_t);
2849 /* Fill in FARPR payload */
2850 fp
= (FARP
*) (pcmd
);
2851 memset(fp
, 0, sizeof(FARP
));
2852 lp
= (uint32_t *) pcmd
;
2853 *lp
++ = be32_to_cpu(nportid
);
2854 *lp
++ = be32_to_cpu(vport
->fc_myDID
);
2856 fp
->Mflags
= (FARP_MATCH_PORT
| FARP_MATCH_NODE
);
2858 memcpy(&fp
->RportName
, &vport
->fc_portname
, sizeof(struct lpfc_name
));
2859 memcpy(&fp
->RnodeName
, &vport
->fc_nodename
, sizeof(struct lpfc_name
));
2860 ondlp
= lpfc_findnode_did(vport
, nportid
);
2861 if (ondlp
&& NLP_CHK_NODE_ACT(ondlp
)) {
2862 memcpy(&fp
->OportName
, &ondlp
->nlp_portname
,
2863 sizeof(struct lpfc_name
));
2864 memcpy(&fp
->OnodeName
, &ondlp
->nlp_nodename
,
2865 sizeof(struct lpfc_name
));
2868 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2869 "Issue FARPR: did:x%x",
2870 ndlp
->nlp_DID
, 0, 0);
2872 phba
->fc_stat
.elsXmitFARPR
++;
2873 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_cmd
;
2874 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) ==
2876 /* The additional lpfc_nlp_put will cause the following
2877 * lpfc_els_free_iocb routine to trigger the release of
2881 lpfc_els_free_iocb(phba
, elsiocb
);
2884 /* This will cause the callback-function lpfc_cmpl_els_cmd to
2885 * trigger the release of the node.
2892 * lpfc_cancel_retry_delay_tmo - Cancel the timer with delayed iocb-cmd retry
2893 * @vport: pointer to a host virtual N_Port data structure.
2894 * @nlp: pointer to a node-list data structure.
2896 * This routine cancels the timer with a delayed IOCB-command retry for
2897 * a @vport's @ndlp. It stops the timer for the delayed function retrial and
2898 * removes the ELS retry event if it presents. In addition, if the
2899 * NLP_NPR_2B_DISC bit is set in the @nlp's nlp_flag bitmap, ADISC IOCB
2900 * commands are sent for the @vport's nodes that require issuing discovery
2904 lpfc_cancel_retry_delay_tmo(struct lpfc_vport
*vport
, struct lpfc_nodelist
*nlp
)
2906 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2907 struct lpfc_work_evt
*evtp
;
2909 if (!(nlp
->nlp_flag
& NLP_DELAY_TMO
))
2911 spin_lock_irq(shost
->host_lock
);
2912 nlp
->nlp_flag
&= ~NLP_DELAY_TMO
;
2913 spin_unlock_irq(shost
->host_lock
);
2914 del_timer_sync(&nlp
->nlp_delayfunc
);
2915 nlp
->nlp_last_elscmd
= 0;
2916 if (!list_empty(&nlp
->els_retry_evt
.evt_listp
)) {
2917 list_del_init(&nlp
->els_retry_evt
.evt_listp
);
2918 /* Decrement nlp reference count held for the delayed retry */
2919 evtp
= &nlp
->els_retry_evt
;
2920 lpfc_nlp_put((struct lpfc_nodelist
*)evtp
->evt_arg1
);
2922 if (nlp
->nlp_flag
& NLP_NPR_2B_DISC
) {
2923 spin_lock_irq(shost
->host_lock
);
2924 nlp
->nlp_flag
&= ~NLP_NPR_2B_DISC
;
2925 spin_unlock_irq(shost
->host_lock
);
2926 if (vport
->num_disc_nodes
) {
2927 if (vport
->port_state
< LPFC_VPORT_READY
) {
2928 /* Check if there are more ADISCs to be sent */
2929 lpfc_more_adisc(vport
);
2931 /* Check if there are more PLOGIs to be sent */
2932 lpfc_more_plogi(vport
);
2933 if (vport
->num_disc_nodes
== 0) {
2934 spin_lock_irq(shost
->host_lock
);
2935 vport
->fc_flag
&= ~FC_NDISC_ACTIVE
;
2936 spin_unlock_irq(shost
->host_lock
);
2937 lpfc_can_disctmo(vport
);
2938 lpfc_end_rscn(vport
);
2947 * lpfc_els_retry_delay - Timer function with a ndlp delayed function timer
2948 * @ptr: holder for the pointer to the timer function associated data (ndlp).
2950 * This routine is invoked by the ndlp delayed-function timer to check
2951 * whether there is any pending ELS retry event(s) with the node. If not, it
2952 * simply returns. Otherwise, if there is at least one ELS delayed event, it
2953 * adds the delayed events to the HBA work list and invokes the
2954 * lpfc_worker_wake_up() routine to wake up worker thread to process the
2955 * event. Note that lpfc_nlp_get() is called before posting the event to
2956 * the work list to hold reference count of ndlp so that it guarantees the
2957 * reference to ndlp will still be available when the worker thread gets
2958 * to the event associated with the ndlp.
2961 lpfc_els_retry_delay(unsigned long ptr
)
2963 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) ptr
;
2964 struct lpfc_vport
*vport
= ndlp
->vport
;
2965 struct lpfc_hba
*phba
= vport
->phba
;
2966 unsigned long flags
;
2967 struct lpfc_work_evt
*evtp
= &ndlp
->els_retry_evt
;
2969 spin_lock_irqsave(&phba
->hbalock
, flags
);
2970 if (!list_empty(&evtp
->evt_listp
)) {
2971 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
2975 /* We need to hold the node by incrementing the reference
2976 * count until the queued work is done
2978 evtp
->evt_arg1
= lpfc_nlp_get(ndlp
);
2979 if (evtp
->evt_arg1
) {
2980 evtp
->evt
= LPFC_EVT_ELS_RETRY
;
2981 list_add_tail(&evtp
->evt_listp
, &phba
->work_list
);
2982 lpfc_worker_wake_up(phba
);
2984 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
2989 * lpfc_els_retry_delay_handler - Work thread handler for ndlp delayed function
2990 * @ndlp: pointer to a node-list data structure.
2992 * This routine is the worker-thread handler for processing the @ndlp delayed
2993 * event(s), posted by the lpfc_els_retry_delay() routine. It simply retrieves
2994 * the last ELS command from the associated ndlp and invokes the proper ELS
2995 * function according to the delayed ELS command to retry the command.
2998 lpfc_els_retry_delay_handler(struct lpfc_nodelist
*ndlp
)
3000 struct lpfc_vport
*vport
= ndlp
->vport
;
3001 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
3002 uint32_t cmd
, retry
;
3004 spin_lock_irq(shost
->host_lock
);
3005 cmd
= ndlp
->nlp_last_elscmd
;
3006 ndlp
->nlp_last_elscmd
= 0;
3008 if (!(ndlp
->nlp_flag
& NLP_DELAY_TMO
)) {
3009 spin_unlock_irq(shost
->host_lock
);
3013 ndlp
->nlp_flag
&= ~NLP_DELAY_TMO
;
3014 spin_unlock_irq(shost
->host_lock
);
3016 * If a discovery event readded nlp_delayfunc after timer
3017 * firing and before processing the timer, cancel the
3020 del_timer_sync(&ndlp
->nlp_delayfunc
);
3021 retry
= ndlp
->nlp_retry
;
3022 ndlp
->nlp_retry
= 0;
3026 lpfc_issue_els_flogi(vport
, ndlp
, retry
);
3029 if (!lpfc_issue_els_plogi(vport
, ndlp
->nlp_DID
, retry
)) {
3030 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3031 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_PLOGI_ISSUE
);
3035 if (!lpfc_issue_els_adisc(vport
, ndlp
, retry
)) {
3036 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3037 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_ADISC_ISSUE
);
3041 if (!lpfc_issue_els_prli(vport
, ndlp
, retry
)) {
3042 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3043 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_PRLI_ISSUE
);
3047 if (!lpfc_issue_els_logo(vport
, ndlp
, retry
)) {
3048 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3049 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_LOGO_ISSUE
);
3053 if (!(vport
->fc_flag
& FC_VPORT_NEEDS_INIT_VPI
))
3054 lpfc_issue_els_fdisc(vport
, ndlp
, retry
);
3061 * lpfc_els_retry - Make retry decision on an els command iocb
3062 * @phba: pointer to lpfc hba data structure.
3063 * @cmdiocb: pointer to lpfc command iocb data structure.
3064 * @rspiocb: pointer to lpfc response iocb data structure.
3066 * This routine makes a retry decision on an ELS command IOCB, which has
3067 * failed. The following ELS IOCBs use this function for retrying the command
3068 * when previously issued command responsed with error status: FLOGI, PLOGI,
3069 * PRLI, ADISC, LOGO, and FDISC. Based on the ELS command type and the
3070 * returned error status, it makes the decision whether a retry shall be
3071 * issued for the command, and whether a retry shall be made immediately or
3072 * delayed. In the former case, the corresponding ELS command issuing-function
3073 * is called to retry the command. In the later case, the ELS command shall
3074 * be posted to the ndlp delayed event and delayed function timer set to the
3075 * ndlp for the delayed command issusing.
3078 * 0 - No retry of els command is made
3079 * 1 - Immediate or delayed retry of els command is made
3082 lpfc_els_retry(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
3083 struct lpfc_iocbq
*rspiocb
)
3085 struct lpfc_vport
*vport
= cmdiocb
->vport
;
3086 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
3087 IOCB_t
*irsp
= &rspiocb
->iocb
;
3088 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) cmdiocb
->context1
;
3089 struct lpfc_dmabuf
*pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
3092 int retry
= 0, maxretry
= lpfc_max_els_tries
, delay
= 0;
3098 /* Note: context2 may be 0 for internal driver abort
3099 * of delays ELS command.
3102 if (pcmd
&& pcmd
->virt
) {
3103 elscmd
= (uint32_t *) (pcmd
->virt
);
3107 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
))
3108 did
= ndlp
->nlp_DID
;
3110 /* We should only hit this case for retrying PLOGI */
3111 did
= irsp
->un
.elsreq64
.remoteID
;
3112 ndlp
= lpfc_findnode_did(vport
, did
);
3113 if ((!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
))
3114 && (cmd
!= ELS_CMD_PLOGI
))
3118 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
3119 "Retry ELS: wd7:x%x wd4:x%x did:x%x",
3120 *(((uint32_t *) irsp
) + 7), irsp
->un
.ulpWord
[4], ndlp
->nlp_DID
);
3122 switch (irsp
->ulpStatus
) {
3123 case IOSTAT_FCP_RSP_ERROR
:
3125 case IOSTAT_REMOTE_STOP
:
3126 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
3127 /* This IO was aborted by the target, we don't
3128 * know the rxid and because we did not send the
3129 * ABTS we cannot generate and RRQ.
3131 lpfc_set_rrq_active(phba
, ndlp
,
3132 cmdiocb
->sli4_lxritag
, 0, 0);
3135 case IOSTAT_LOCAL_REJECT
:
3136 switch ((irsp
->un
.ulpWord
[4] & IOERR_PARAM_MASK
)) {
3137 case IOERR_LOOP_OPEN_FAILURE
:
3138 if (cmd
== ELS_CMD_FLOGI
) {
3139 if (PCI_DEVICE_ID_HORNET
==
3140 phba
->pcidev
->device
) {
3141 phba
->fc_topology
= LPFC_TOPOLOGY_LOOP
;
3142 phba
->pport
->fc_myDID
= 0;
3143 phba
->alpa_map
[0] = 0;
3144 phba
->alpa_map
[1] = 0;
3147 if (cmd
== ELS_CMD_PLOGI
&& cmdiocb
->retry
== 0)
3152 case IOERR_ILLEGAL_COMMAND
:
3153 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
3154 "0124 Retry illegal cmd x%x "
3155 "retry:x%x delay:x%x\n",
3156 cmd
, cmdiocb
->retry
, delay
);
3158 /* All command's retry policy */
3160 if (cmdiocb
->retry
> 2)
3164 case IOERR_NO_RESOURCES
:
3165 logerr
= 1; /* HBA out of resources */
3167 if (cmdiocb
->retry
> 100)
3172 case IOERR_ILLEGAL_FRAME
:
3177 case IOERR_SEQUENCE_TIMEOUT
:
3178 case IOERR_INVALID_RPI
:
3179 if (cmd
== ELS_CMD_PLOGI
&&
3180 did
== NameServer_DID
) {
3181 /* Continue forever if plogi to */
3182 /* the nameserver fails */
3191 case IOSTAT_NPORT_RJT
:
3192 case IOSTAT_FABRIC_RJT
:
3193 if (irsp
->un
.ulpWord
[4] & RJT_UNAVAIL_TEMP
) {
3199 case IOSTAT_NPORT_BSY
:
3200 case IOSTAT_FABRIC_BSY
:
3201 logerr
= 1; /* Fabric / Remote NPort out of resources */
3206 stat
.un
.lsRjtError
= be32_to_cpu(irsp
->un
.ulpWord
[4]);
3207 /* Added for Vendor specifc support
3208 * Just keep retrying for these Rsn / Exp codes
3210 switch (stat
.un
.b
.lsRjtRsnCode
) {
3211 case LSRJT_UNABLE_TPC
:
3212 if (stat
.un
.b
.lsRjtRsnCodeExp
==
3213 LSEXP_CMD_IN_PROGRESS
) {
3214 if (cmd
== ELS_CMD_PLOGI
) {
3221 if (stat
.un
.b
.lsRjtRsnCodeExp
==
3222 LSEXP_CANT_GIVE_DATA
) {
3223 if (cmd
== ELS_CMD_PLOGI
) {
3230 if ((cmd
== ELS_CMD_PLOGI
) ||
3231 (cmd
== ELS_CMD_PRLI
)) {
3233 maxretry
= lpfc_max_els_tries
+ 1;
3237 if ((phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
3238 (cmd
== ELS_CMD_FDISC
) &&
3239 (stat
.un
.b
.lsRjtRsnCodeExp
== LSEXP_OUT_OF_RESOURCE
)){
3240 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
3241 "0125 FDISC Failed (x%x). "
3242 "Fabric out of resources\n",
3243 stat
.un
.lsRjtError
);
3244 lpfc_vport_set_state(vport
,
3245 FC_VPORT_NO_FABRIC_RSCS
);
3249 case LSRJT_LOGICAL_BSY
:
3250 if ((cmd
== ELS_CMD_PLOGI
) ||
3251 (cmd
== ELS_CMD_PRLI
)) {
3254 } else if (cmd
== ELS_CMD_FDISC
) {
3255 /* FDISC retry policy */
3257 if (cmdiocb
->retry
>= 32)
3263 case LSRJT_LOGICAL_ERR
:
3264 /* There are some cases where switches return this
3265 * error when they are not ready and should be returning
3266 * Logical Busy. We should delay every time.
3268 if (cmd
== ELS_CMD_FDISC
&&
3269 stat
.un
.b
.lsRjtRsnCodeExp
== LSEXP_PORT_LOGIN_REQ
) {
3275 case LSRJT_PROTOCOL_ERR
:
3276 if ((phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
3277 (cmd
== ELS_CMD_FDISC
) &&
3278 ((stat
.un
.b
.lsRjtRsnCodeExp
== LSEXP_INVALID_PNAME
) ||
3279 (stat
.un
.b
.lsRjtRsnCodeExp
== LSEXP_INVALID_NPORT_ID
))
3281 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
3282 "0122 FDISC Failed (x%x). "
3283 "Fabric Detected Bad WWN\n",
3284 stat
.un
.lsRjtError
);
3285 lpfc_vport_set_state(vport
,
3286 FC_VPORT_FABRIC_REJ_WWN
);
3292 case IOSTAT_INTERMED_RSP
:
3300 if (did
== FDMI_DID
)
3303 if ((cmd
== ELS_CMD_FLOGI
) &&
3304 (phba
->fc_topology
!= LPFC_TOPOLOGY_LOOP
) &&
3305 !lpfc_error_lost_link(irsp
)) {
3306 /* FLOGI retry policy */
3308 /* retry FLOGI forever */
3309 if (phba
->link_flag
!= LS_LOOPBACK_MODE
)
3314 if (cmdiocb
->retry
>= 100)
3316 else if (cmdiocb
->retry
>= 32)
3318 } else if ((cmd
== ELS_CMD_FDISC
) && !lpfc_error_lost_link(irsp
)) {
3319 /* retry FDISCs every second up to devloss */
3321 maxretry
= vport
->cfg_devloss_tmo
;
3326 if (maxretry
&& (cmdiocb
->retry
>= maxretry
)) {
3327 phba
->fc_stat
.elsRetryExceeded
++;
3331 if ((vport
->load_flag
& FC_UNLOADING
) != 0)
3335 if ((cmd
== ELS_CMD_PLOGI
) || (cmd
== ELS_CMD_FDISC
)) {
3336 /* Stop retrying PLOGI and FDISC if in FCF discovery */
3337 if (phba
->fcf
.fcf_flag
& FCF_DISCOVERY
) {
3338 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
3339 "2849 Stop retry ELS command "
3340 "x%x to remote NPORT x%x, "
3341 "Data: x%x x%x\n", cmd
, did
,
3342 cmdiocb
->retry
, delay
);
3347 /* Retry ELS command <elsCmd> to remote NPORT <did> */
3348 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
3349 "0107 Retry ELS command x%x to remote "
3350 "NPORT x%x Data: x%x x%x\n",
3351 cmd
, did
, cmdiocb
->retry
, delay
);
3353 if (((cmd
== ELS_CMD_PLOGI
) || (cmd
== ELS_CMD_ADISC
)) &&
3354 ((irsp
->ulpStatus
!= IOSTAT_LOCAL_REJECT
) ||
3355 ((irsp
->un
.ulpWord
[4] & IOERR_PARAM_MASK
) !=
3356 IOERR_NO_RESOURCES
))) {
3357 /* Don't reset timer for no resources */
3359 /* If discovery / RSCN timer is running, reset it */
3360 if (timer_pending(&vport
->fc_disctmo
) ||
3361 (vport
->fc_flag
& FC_RSCN_MODE
))
3362 lpfc_set_disctmo(vport
);
3365 phba
->fc_stat
.elsXmitRetry
++;
3366 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
) && delay
) {
3367 phba
->fc_stat
.elsDelayRetry
++;
3368 ndlp
->nlp_retry
= cmdiocb
->retry
;
3370 /* delay is specified in milliseconds */
3371 mod_timer(&ndlp
->nlp_delayfunc
,
3372 jiffies
+ msecs_to_jiffies(delay
));
3373 spin_lock_irq(shost
->host_lock
);
3374 ndlp
->nlp_flag
|= NLP_DELAY_TMO
;
3375 spin_unlock_irq(shost
->host_lock
);
3377 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3378 if (cmd
== ELS_CMD_PRLI
)
3379 lpfc_nlp_set_state(vport
, ndlp
,
3380 NLP_STE_PRLI_ISSUE
);
3382 lpfc_nlp_set_state(vport
, ndlp
,
3384 ndlp
->nlp_last_elscmd
= cmd
;
3390 lpfc_issue_els_flogi(vport
, ndlp
, cmdiocb
->retry
);
3393 lpfc_issue_els_fdisc(vport
, ndlp
, cmdiocb
->retry
);
3396 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
)) {
3397 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3398 lpfc_nlp_set_state(vport
, ndlp
,
3399 NLP_STE_PLOGI_ISSUE
);
3401 lpfc_issue_els_plogi(vport
, did
, cmdiocb
->retry
);
3404 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3405 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_ADISC_ISSUE
);
3406 lpfc_issue_els_adisc(vport
, ndlp
, cmdiocb
->retry
);
3409 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3410 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_PRLI_ISSUE
);
3411 lpfc_issue_els_prli(vport
, ndlp
, cmdiocb
->retry
);
3414 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3415 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_LOGO_ISSUE
);
3416 lpfc_issue_els_logo(vport
, ndlp
, cmdiocb
->retry
);
3420 /* No retry ELS command <elsCmd> to remote NPORT <did> */
3422 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
3423 "0137 No retry ELS command x%x to remote "
3424 "NPORT x%x: Out of Resources: Error:x%x/%x\n",
3425 cmd
, did
, irsp
->ulpStatus
,
3426 irsp
->un
.ulpWord
[4]);
3429 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
3430 "0108 No retry ELS command x%x to remote "
3431 "NPORT x%x Retried:%d Error:x%x/%x\n",
3432 cmd
, did
, cmdiocb
->retry
, irsp
->ulpStatus
,
3433 irsp
->un
.ulpWord
[4]);
3439 * lpfc_els_free_data - Free lpfc dma buffer and data structure with an iocb
3440 * @phba: pointer to lpfc hba data structure.
3441 * @buf_ptr1: pointer to the lpfc DMA buffer data structure.
3443 * This routine releases the lpfc DMA (Direct Memory Access) buffer(s)
3444 * associated with a command IOCB back to the lpfc DMA buffer pool. It first
3445 * checks to see whether there is a lpfc DMA buffer associated with the
3446 * response of the command IOCB. If so, it will be released before releasing
3447 * the lpfc DMA buffer associated with the IOCB itself.
3450 * 0 - Successfully released lpfc DMA buffer (currently, always return 0)
3453 lpfc_els_free_data(struct lpfc_hba
*phba
, struct lpfc_dmabuf
*buf_ptr1
)
3455 struct lpfc_dmabuf
*buf_ptr
;
3457 /* Free the response before processing the command. */
3458 if (!list_empty(&buf_ptr1
->list
)) {
3459 list_remove_head(&buf_ptr1
->list
, buf_ptr
,
3462 lpfc_mbuf_free(phba
, buf_ptr
->virt
, buf_ptr
->phys
);
3465 lpfc_mbuf_free(phba
, buf_ptr1
->virt
, buf_ptr1
->phys
);
3471 * lpfc_els_free_bpl - Free lpfc dma buffer and data structure with bpl
3472 * @phba: pointer to lpfc hba data structure.
3473 * @buf_ptr: pointer to the lpfc dma buffer data structure.
3475 * This routine releases the lpfc Direct Memory Access (DMA) buffer
3476 * associated with a Buffer Pointer List (BPL) back to the lpfc DMA buffer
3480 * 0 - Successfully released lpfc DMA buffer (currently, always return 0)
3483 lpfc_els_free_bpl(struct lpfc_hba
*phba
, struct lpfc_dmabuf
*buf_ptr
)
3485 lpfc_mbuf_free(phba
, buf_ptr
->virt
, buf_ptr
->phys
);
3491 * lpfc_els_free_iocb - Free a command iocb and its associated resources
3492 * @phba: pointer to lpfc hba data structure.
3493 * @elsiocb: pointer to lpfc els command iocb data structure.
3495 * This routine frees a command IOCB and its associated resources. The
3496 * command IOCB data structure contains the reference to various associated
3497 * resources, these fields must be set to NULL if the associated reference
3499 * context1 - reference to ndlp
3500 * context2 - reference to cmd
3501 * context2->next - reference to rsp
3502 * context3 - reference to bpl
3504 * It first properly decrements the reference count held on ndlp for the
3505 * IOCB completion callback function. If LPFC_DELAY_MEM_FREE flag is not
3506 * set, it invokes the lpfc_els_free_data() routine to release the Direct
3507 * Memory Access (DMA) buffers associated with the IOCB. Otherwise, it
3508 * adds the DMA buffer the @phba data structure for the delayed release.
3509 * If reference to the Buffer Pointer List (BPL) is present, the
3510 * lpfc_els_free_bpl() routine is invoked to release the DMA memory
3511 * associated with BPL. Finally, the lpfc_sli_release_iocbq() routine is
3512 * invoked to release the IOCB data structure back to @phba IOCBQ list.
3515 * 0 - Success (currently, always return 0)
3518 lpfc_els_free_iocb(struct lpfc_hba
*phba
, struct lpfc_iocbq
*elsiocb
)
3520 struct lpfc_dmabuf
*buf_ptr
, *buf_ptr1
;
3521 struct lpfc_nodelist
*ndlp
;
3523 ndlp
= (struct lpfc_nodelist
*)elsiocb
->context1
;
3525 if (ndlp
->nlp_flag
& NLP_DEFER_RM
) {
3528 /* If the ndlp is not being used by another discovery
3531 if (!lpfc_nlp_not_used(ndlp
)) {
3532 /* If ndlp is being used by another discovery
3533 * thread, just clear NLP_DEFER_RM
3535 ndlp
->nlp_flag
&= ~NLP_DEFER_RM
;
3540 elsiocb
->context1
= NULL
;
3542 /* context2 = cmd, context2->next = rsp, context3 = bpl */
3543 if (elsiocb
->context2
) {
3544 if (elsiocb
->iocb_flag
& LPFC_DELAY_MEM_FREE
) {
3545 /* Firmware could still be in progress of DMAing
3546 * payload, so don't free data buffer till after
3549 elsiocb
->iocb_flag
&= ~LPFC_DELAY_MEM_FREE
;
3550 buf_ptr
= elsiocb
->context2
;
3551 elsiocb
->context2
= NULL
;
3554 spin_lock_irq(&phba
->hbalock
);
3555 if (!list_empty(&buf_ptr
->list
)) {
3556 list_remove_head(&buf_ptr
->list
,
3557 buf_ptr1
, struct lpfc_dmabuf
,
3559 INIT_LIST_HEAD(&buf_ptr1
->list
);
3560 list_add_tail(&buf_ptr1
->list
,
3564 INIT_LIST_HEAD(&buf_ptr
->list
);
3565 list_add_tail(&buf_ptr
->list
, &phba
->elsbuf
);
3567 spin_unlock_irq(&phba
->hbalock
);
3570 buf_ptr1
= (struct lpfc_dmabuf
*) elsiocb
->context2
;
3571 lpfc_els_free_data(phba
, buf_ptr1
);
3572 elsiocb
->context2
= NULL
;
3576 if (elsiocb
->context3
) {
3577 buf_ptr
= (struct lpfc_dmabuf
*) elsiocb
->context3
;
3578 lpfc_els_free_bpl(phba
, buf_ptr
);
3579 elsiocb
->context3
= NULL
;
3581 lpfc_sli_release_iocbq(phba
, elsiocb
);
3586 * lpfc_cmpl_els_logo_acc - Completion callback function to logo acc response
3587 * @phba: pointer to lpfc hba data structure.
3588 * @cmdiocb: pointer to lpfc command iocb data structure.
3589 * @rspiocb: pointer to lpfc response iocb data structure.
3591 * This routine is the completion callback function to the Logout (LOGO)
3592 * Accept (ACC) Response ELS command. This routine is invoked to indicate
3593 * the completion of the LOGO process. It invokes the lpfc_nlp_not_used() to
3594 * release the ndlp if it has the last reference remaining (reference count
3595 * is 1). If succeeded (meaning ndlp released), it sets the IOCB context1
3596 * field to NULL to inform the following lpfc_els_free_iocb() routine no
3597 * ndlp reference count needs to be decremented. Otherwise, the ndlp
3598 * reference use-count shall be decremented by the lpfc_els_free_iocb()
3599 * routine. Finally, the lpfc_els_free_iocb() is invoked to release the
3600 * IOCB data structure.
3603 lpfc_cmpl_els_logo_acc(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
3604 struct lpfc_iocbq
*rspiocb
)
3606 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) cmdiocb
->context1
;
3607 struct lpfc_vport
*vport
= cmdiocb
->vport
;
3610 irsp
= &rspiocb
->iocb
;
3611 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
3612 "ACC LOGO cmpl: status:x%x/x%x did:x%x",
3613 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4], ndlp
->nlp_DID
);
3614 /* ACC to LOGO completes to NPort <nlp_DID> */
3615 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
3616 "0109 ACC to LOGO completes to NPort x%x "
3617 "Data: x%x x%x x%x\n",
3618 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
3621 if (ndlp
->nlp_state
== NLP_STE_NPR_NODE
) {
3622 /* NPort Recovery mode or node is just allocated */
3623 if (!lpfc_nlp_not_used(ndlp
)) {
3624 /* If the ndlp is being used by another discovery
3625 * thread, just unregister the RPI.
3627 lpfc_unreg_rpi(vport
, ndlp
);
3629 /* Indicate the node has already released, should
3630 * not reference to it from within lpfc_els_free_iocb.
3632 cmdiocb
->context1
= NULL
;
3637 * The driver received a LOGO from the rport and has ACK'd it.
3638 * At this point, the driver is done so release the IOCB
3640 lpfc_els_free_iocb(phba
, cmdiocb
);
3644 * lpfc_mbx_cmpl_dflt_rpi - Completion callbk func for unreg dflt rpi mbox cmd
3645 * @phba: pointer to lpfc hba data structure.
3646 * @pmb: pointer to the driver internal queue element for mailbox command.
3648 * This routine is the completion callback function for unregister default
3649 * RPI (Remote Port Index) mailbox command to the @phba. It simply releases
3650 * the associated lpfc Direct Memory Access (DMA) buffer back to the pool and
3651 * decrements the ndlp reference count held for this completion callback
3652 * function. After that, it invokes the lpfc_nlp_not_used() to check
3653 * whether there is only one reference left on the ndlp. If so, it will
3654 * perform one more decrement and trigger the release of the ndlp.
3657 lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
3659 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
3660 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
3662 pmb
->context1
= NULL
;
3663 pmb
->context2
= NULL
;
3665 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3667 mempool_free(pmb
, phba
->mbox_mem_pool
);
3669 lpfc_printf_vlog(ndlp
->vport
, KERN_INFO
, LOG_NODE
,
3670 "0006 rpi%x DID:%x flg:%x %d map:%x %p\n",
3671 ndlp
->nlp_rpi
, ndlp
->nlp_DID
, ndlp
->nlp_flag
,
3672 atomic_read(&ndlp
->kref
.refcount
),
3673 ndlp
->nlp_usg_map
, ndlp
);
3674 if (NLP_CHK_NODE_ACT(ndlp
)) {
3676 /* This is the end of the default RPI cleanup logic for
3677 * this ndlp. If no other discovery threads are using
3678 * this ndlp, free all resources associated with it.
3680 lpfc_nlp_not_used(ndlp
);
3682 lpfc_drop_node(ndlp
->vport
, ndlp
);
3690 * lpfc_cmpl_els_rsp - Completion callback function for els response iocb cmd
3691 * @phba: pointer to lpfc hba data structure.
3692 * @cmdiocb: pointer to lpfc command iocb data structure.
3693 * @rspiocb: pointer to lpfc response iocb data structure.
3695 * This routine is the completion callback function for ELS Response IOCB
3696 * command. In normal case, this callback function just properly sets the
3697 * nlp_flag bitmap in the ndlp data structure, if the mbox command reference
3698 * field in the command IOCB is not NULL, the referred mailbox command will
3699 * be send out, and then invokes the lpfc_els_free_iocb() routine to release
3700 * the IOCB. Under error conditions, such as when a LS_RJT is returned or a
3701 * link down event occurred during the discovery, the lpfc_nlp_not_used()
3702 * routine shall be invoked trying to release the ndlp if no other threads
3703 * are currently referring it.
3706 lpfc_cmpl_els_rsp(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
3707 struct lpfc_iocbq
*rspiocb
)
3709 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) cmdiocb
->context1
;
3710 struct lpfc_vport
*vport
= ndlp
? ndlp
->vport
: NULL
;
3711 struct Scsi_Host
*shost
= vport
? lpfc_shost_from_vport(vport
) : NULL
;
3714 LPFC_MBOXQ_t
*mbox
= NULL
;
3715 struct lpfc_dmabuf
*mp
= NULL
;
3716 uint32_t ls_rjt
= 0;
3718 irsp
= &rspiocb
->iocb
;
3720 if (cmdiocb
->context_un
.mbox
)
3721 mbox
= cmdiocb
->context_un
.mbox
;
3723 /* First determine if this is a LS_RJT cmpl. Note, this callback
3724 * function can have cmdiocb->contest1 (ndlp) field set to NULL.
3726 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) cmdiocb
->context2
)->virt
);
3727 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
) &&
3728 (*((uint32_t *) (pcmd
)) == ELS_CMD_LS_RJT
)) {
3729 /* A LS_RJT associated with Default RPI cleanup has its own
3730 * separate code path.
3732 if (!(ndlp
->nlp_flag
& NLP_RM_DFLT_RPI
))
3736 /* Check to see if link went down during discovery */
3737 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
) || lpfc_els_chk_latt(vport
)) {
3739 mp
= (struct lpfc_dmabuf
*) mbox
->context1
;
3741 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3744 mempool_free(mbox
, phba
->mbox_mem_pool
);
3746 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
) &&
3747 (ndlp
->nlp_flag
& NLP_RM_DFLT_RPI
))
3748 if (lpfc_nlp_not_used(ndlp
)) {
3750 /* Indicate the node has already released,
3751 * should not reference to it from within
3752 * the routine lpfc_els_free_iocb.
3754 cmdiocb
->context1
= NULL
;
3759 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
3760 "ELS rsp cmpl: status:x%x/x%x did:x%x",
3761 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
3762 cmdiocb
->iocb
.un
.elsreq64
.remoteID
);
3763 /* ELS response tag <ulpIoTag> completes */
3764 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
3765 "0110 ELS response tag x%x completes "
3766 "Data: x%x x%x x%x x%x x%x x%x x%x\n",
3767 cmdiocb
->iocb
.ulpIoTag
, rspiocb
->iocb
.ulpStatus
,
3768 rspiocb
->iocb
.un
.ulpWord
[4], rspiocb
->iocb
.ulpTimeout
,
3769 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
3772 if ((rspiocb
->iocb
.ulpStatus
== 0)
3773 && (ndlp
->nlp_flag
& NLP_ACC_REGLOGIN
)) {
3774 lpfc_unreg_rpi(vport
, ndlp
);
3775 /* Increment reference count to ndlp to hold the
3776 * reference to ndlp for the callback function.
3778 mbox
->context2
= lpfc_nlp_get(ndlp
);
3779 mbox
->vport
= vport
;
3780 if (ndlp
->nlp_flag
& NLP_RM_DFLT_RPI
) {
3781 mbox
->mbox_flag
|= LPFC_MBX_IMED_UNREG
;
3782 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_dflt_rpi
;
3785 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_reg_login
;
3786 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3787 lpfc_nlp_set_state(vport
, ndlp
,
3788 NLP_STE_REG_LOGIN_ISSUE
);
3791 ndlp
->nlp_flag
|= NLP_REG_LOGIN_SEND
;
3792 if (lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
)
3793 != MBX_NOT_FINISHED
)
3796 /* Decrement the ndlp reference count we
3797 * set for this failed mailbox command.
3800 ndlp
->nlp_flag
&= ~NLP_REG_LOGIN_SEND
;
3802 /* ELS rsp: Cannot issue reg_login for <NPortid> */
3803 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
3804 "0138 ELS rsp: Cannot issue reg_login for x%x "
3805 "Data: x%x x%x x%x\n",
3806 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
3809 if (lpfc_nlp_not_used(ndlp
)) {
3811 /* Indicate node has already been released,
3812 * should not reference to it from within
3813 * the routine lpfc_els_free_iocb.
3815 cmdiocb
->context1
= NULL
;
3818 /* Do not drop node for lpfc_els_abort'ed ELS cmds */
3819 if (!lpfc_error_lost_link(irsp
) &&
3820 ndlp
->nlp_flag
& NLP_ACC_REGLOGIN
) {
3821 if (lpfc_nlp_not_used(ndlp
)) {
3823 /* Indicate node has already been
3824 * released, should not reference
3825 * to it from within the routine
3826 * lpfc_els_free_iocb.
3828 cmdiocb
->context1
= NULL
;
3832 mp
= (struct lpfc_dmabuf
*) mbox
->context1
;
3834 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3837 mempool_free(mbox
, phba
->mbox_mem_pool
);
3840 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
)) {
3841 spin_lock_irq(shost
->host_lock
);
3842 ndlp
->nlp_flag
&= ~(NLP_ACC_REGLOGIN
| NLP_RM_DFLT_RPI
);
3843 spin_unlock_irq(shost
->host_lock
);
3845 /* If the node is not being used by another discovery thread,
3846 * and we are sending a reject, we are done with it.
3847 * Release driver reference count here and free associated
3851 if (lpfc_nlp_not_used(ndlp
))
3852 /* Indicate node has already been released,
3853 * should not reference to it from within
3854 * the routine lpfc_els_free_iocb.
3856 cmdiocb
->context1
= NULL
;
3860 lpfc_els_free_iocb(phba
, cmdiocb
);
3865 * lpfc_els_rsp_acc - Prepare and issue an acc response iocb command
3866 * @vport: pointer to a host virtual N_Port data structure.
3867 * @flag: the els command code to be accepted.
3868 * @oldiocb: pointer to the original lpfc command iocb data structure.
3869 * @ndlp: pointer to a node-list data structure.
3870 * @mbox: pointer to the driver internal queue element for mailbox command.
3872 * This routine prepares and issues an Accept (ACC) response IOCB
3873 * command. It uses the @flag to properly set up the IOCB field for the
3874 * specific ACC response command to be issued and invokes the
3875 * lpfc_sli_issue_iocb() routine to send out ACC response IOCB. If a
3876 * @mbox pointer is passed in, it will be put into the context_un.mbox
3877 * field of the IOCB for the completion callback function to issue the
3878 * mailbox command to the HBA later when callback is invoked.
3880 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
3881 * will be incremented by 1 for holding the ndlp and the reference to ndlp
3882 * will be stored into the context1 field of the IOCB for the completion
3883 * callback function to the corresponding response ELS IOCB command.
3886 * 0 - Successfully issued acc response
3887 * 1 - Failed to issue acc response
3890 lpfc_els_rsp_acc(struct lpfc_vport
*vport
, uint32_t flag
,
3891 struct lpfc_iocbq
*oldiocb
, struct lpfc_nodelist
*ndlp
,
3894 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
3895 struct lpfc_hba
*phba
= vport
->phba
;
3898 struct lpfc_iocbq
*elsiocb
;
3900 struct serv_parm
*sp
;
3903 ELS_PKT
*els_pkt_ptr
;
3905 oldcmd
= &oldiocb
->iocb
;
3909 cmdsize
= sizeof(uint32_t);
3910 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
,
3911 ndlp
, ndlp
->nlp_DID
, ELS_CMD_ACC
);
3913 spin_lock_irq(shost
->host_lock
);
3914 ndlp
->nlp_flag
&= ~NLP_LOGO_ACC
;
3915 spin_unlock_irq(shost
->host_lock
);
3919 icmd
= &elsiocb
->iocb
;
3920 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
3921 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
3922 pcmd
= (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
3923 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
3924 pcmd
+= sizeof(uint32_t);
3926 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
3927 "Issue ACC: did:x%x flg:x%x",
3928 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
3932 cmdsize
= (sizeof(struct serv_parm
) + sizeof(uint32_t));
3933 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
,
3934 ndlp
, ndlp
->nlp_DID
, ELS_CMD_ACC
);
3938 icmd
= &elsiocb
->iocb
;
3939 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
3940 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
3941 pcmd
= (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
3944 elsiocb
->context_un
.mbox
= mbox
;
3946 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
3947 pcmd
+= sizeof(uint32_t);
3948 sp
= (struct serv_parm
*)pcmd
;
3950 if (flag
== ELS_CMD_FLOGI
) {
3951 /* Copy the received service parameters back */
3952 memcpy(sp
, &phba
->fc_fabparam
,
3953 sizeof(struct serv_parm
));
3955 /* Clear the F_Port bit */
3958 /* Mark all class service parameters as invalid */
3959 sp
->cls1
.classValid
= 0;
3960 sp
->cls2
.classValid
= 0;
3961 sp
->cls3
.classValid
= 0;
3962 sp
->cls4
.classValid
= 0;
3964 /* Copy our worldwide names */
3965 memcpy(&sp
->portName
, &vport
->fc_sparam
.portName
,
3966 sizeof(struct lpfc_name
));
3967 memcpy(&sp
->nodeName
, &vport
->fc_sparam
.nodeName
,
3968 sizeof(struct lpfc_name
));
3970 memcpy(pcmd
, &vport
->fc_sparam
,
3971 sizeof(struct serv_parm
));
3973 sp
->cmn
.valid_vendor_ver_level
= 0;
3974 memset(sp
->vendorVersion
, 0, sizeof(sp
->vendorVersion
));
3977 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
3978 "Issue ACC FLOGI/PLOGI: did:x%x flg:x%x",
3979 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
3982 cmdsize
= sizeof(uint32_t) + sizeof(PRLO
);
3983 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
,
3984 ndlp
, ndlp
->nlp_DID
, ELS_CMD_PRLO
);
3988 icmd
= &elsiocb
->iocb
;
3989 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
3990 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
3991 pcmd
= (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
3993 memcpy(pcmd
, ((struct lpfc_dmabuf
*) oldiocb
->context2
)->virt
,
3994 sizeof(uint32_t) + sizeof(PRLO
));
3995 *((uint32_t *) (pcmd
)) = ELS_CMD_PRLO_ACC
;
3996 els_pkt_ptr
= (ELS_PKT
*) pcmd
;
3997 els_pkt_ptr
->un
.prlo
.acceptRspCode
= PRLO_REQ_EXECUTED
;
3999 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
4000 "Issue ACC PRLO: did:x%x flg:x%x",
4001 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
4006 /* Xmit ELS ACC response tag <ulpIoTag> */
4007 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4008 "0128 Xmit ELS ACC response tag x%x, XRI: x%x, "
4009 "DID: x%x, nlp_flag: x%x nlp_state: x%x RPI: x%x "
4011 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
4012 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
4013 ndlp
->nlp_rpi
, vport
->fc_flag
);
4014 if (ndlp
->nlp_flag
& NLP_LOGO_ACC
) {
4015 spin_lock_irq(shost
->host_lock
);
4016 if (!(ndlp
->nlp_flag
& NLP_RPI_REGISTERED
||
4017 ndlp
->nlp_flag
& NLP_REG_LOGIN_SEND
))
4018 ndlp
->nlp_flag
&= ~NLP_LOGO_ACC
;
4019 spin_unlock_irq(shost
->host_lock
);
4020 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_logo_acc
;
4022 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
4025 phba
->fc_stat
.elsXmitACC
++;
4026 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
4027 if (rc
== IOCB_ERROR
) {
4028 lpfc_els_free_iocb(phba
, elsiocb
);
4035 * lpfc_els_rsp_reject - Propare and issue a rjt response iocb command
4036 * @vport: pointer to a virtual N_Port data structure.
4038 * @oldiocb: pointer to the original lpfc command iocb data structure.
4039 * @ndlp: pointer to a node-list data structure.
4040 * @mbox: pointer to the driver internal queue element for mailbox command.
4042 * This routine prepares and issue an Reject (RJT) response IOCB
4043 * command. If a @mbox pointer is passed in, it will be put into the
4044 * context_un.mbox field of the IOCB for the completion callback function
4045 * to issue to the HBA later.
4047 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4048 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4049 * will be stored into the context1 field of the IOCB for the completion
4050 * callback function to the reject response ELS IOCB command.
4053 * 0 - Successfully issued reject response
4054 * 1 - Failed to issue reject response
4057 lpfc_els_rsp_reject(struct lpfc_vport
*vport
, uint32_t rejectError
,
4058 struct lpfc_iocbq
*oldiocb
, struct lpfc_nodelist
*ndlp
,
4061 struct lpfc_hba
*phba
= vport
->phba
;
4064 struct lpfc_iocbq
*elsiocb
;
4069 cmdsize
= 2 * sizeof(uint32_t);
4070 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
, ndlp
,
4071 ndlp
->nlp_DID
, ELS_CMD_LS_RJT
);
4075 icmd
= &elsiocb
->iocb
;
4076 oldcmd
= &oldiocb
->iocb
;
4077 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
4078 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
4079 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
4081 *((uint32_t *) (pcmd
)) = ELS_CMD_LS_RJT
;
4082 pcmd
+= sizeof(uint32_t);
4083 *((uint32_t *) (pcmd
)) = rejectError
;
4086 elsiocb
->context_un
.mbox
= mbox
;
4088 /* Xmit ELS RJT <err> response tag <ulpIoTag> */
4089 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4090 "0129 Xmit ELS RJT x%x response tag x%x "
4091 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
4093 rejectError
, elsiocb
->iotag
,
4094 elsiocb
->iocb
.ulpContext
, ndlp
->nlp_DID
,
4095 ndlp
->nlp_flag
, ndlp
->nlp_state
, ndlp
->nlp_rpi
);
4096 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
4097 "Issue LS_RJT: did:x%x flg:x%x err:x%x",
4098 ndlp
->nlp_DID
, ndlp
->nlp_flag
, rejectError
);
4100 phba
->fc_stat
.elsXmitLSRJT
++;
4101 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
4102 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
4104 if (rc
== IOCB_ERROR
) {
4105 lpfc_els_free_iocb(phba
, elsiocb
);
4112 * lpfc_els_rsp_adisc_acc - Prepare and issue acc response to adisc iocb cmd
4113 * @vport: pointer to a virtual N_Port data structure.
4114 * @oldiocb: pointer to the original lpfc command iocb data structure.
4115 * @ndlp: pointer to a node-list data structure.
4117 * This routine prepares and issues an Accept (ACC) response to Address
4118 * Discover (ADISC) ELS command. It simply prepares the payload of the IOCB
4119 * and invokes the lpfc_sli_issue_iocb() routine to send out the command.
4121 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4122 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4123 * will be stored into the context1 field of the IOCB for the completion
4124 * callback function to the ADISC Accept response ELS IOCB command.
4127 * 0 - Successfully issued acc adisc response
4128 * 1 - Failed to issue adisc acc response
4131 lpfc_els_rsp_adisc_acc(struct lpfc_vport
*vport
, struct lpfc_iocbq
*oldiocb
,
4132 struct lpfc_nodelist
*ndlp
)
4134 struct lpfc_hba
*phba
= vport
->phba
;
4136 IOCB_t
*icmd
, *oldcmd
;
4137 struct lpfc_iocbq
*elsiocb
;
4142 cmdsize
= sizeof(uint32_t) + sizeof(ADISC
);
4143 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
, ndlp
,
4144 ndlp
->nlp_DID
, ELS_CMD_ACC
);
4148 icmd
= &elsiocb
->iocb
;
4149 oldcmd
= &oldiocb
->iocb
;
4150 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
4151 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
4153 /* Xmit ADISC ACC response tag <ulpIoTag> */
4154 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4155 "0130 Xmit ADISC ACC response iotag x%x xri: "
4156 "x%x, did x%x, nlp_flag x%x, nlp_state x%x rpi x%x\n",
4157 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
4158 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
4160 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
4162 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
4163 pcmd
+= sizeof(uint32_t);
4165 ap
= (ADISC
*) (pcmd
);
4166 ap
->hardAL_PA
= phba
->fc_pref_ALPA
;
4167 memcpy(&ap
->portName
, &vport
->fc_portname
, sizeof(struct lpfc_name
));
4168 memcpy(&ap
->nodeName
, &vport
->fc_nodename
, sizeof(struct lpfc_name
));
4169 ap
->DID
= be32_to_cpu(vport
->fc_myDID
);
4171 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
4172 "Issue ACC ADISC: did:x%x flg:x%x",
4173 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
4175 phba
->fc_stat
.elsXmitACC
++;
4176 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
4177 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
4178 if (rc
== IOCB_ERROR
) {
4179 lpfc_els_free_iocb(phba
, elsiocb
);
4186 * lpfc_els_rsp_prli_acc - Prepare and issue acc response to prli iocb cmd
4187 * @vport: pointer to a virtual N_Port data structure.
4188 * @oldiocb: pointer to the original lpfc command iocb data structure.
4189 * @ndlp: pointer to a node-list data structure.
4191 * This routine prepares and issues an Accept (ACC) response to Process
4192 * Login (PRLI) ELS command. It simply prepares the payload of the IOCB
4193 * and invokes the lpfc_sli_issue_iocb() routine to send out the command.
4195 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4196 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4197 * will be stored into the context1 field of the IOCB for the completion
4198 * callback function to the PRLI Accept response ELS IOCB command.
4201 * 0 - Successfully issued acc prli response
4202 * 1 - Failed to issue acc prli response
4205 lpfc_els_rsp_prli_acc(struct lpfc_vport
*vport
, struct lpfc_iocbq
*oldiocb
,
4206 struct lpfc_nodelist
*ndlp
)
4208 struct lpfc_hba
*phba
= vport
->phba
;
4213 struct lpfc_iocbq
*elsiocb
;
4218 cmdsize
= sizeof(uint32_t) + sizeof(PRLI
);
4219 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
, ndlp
,
4220 ndlp
->nlp_DID
, (ELS_CMD_ACC
| (ELS_CMD_PRLI
& ~ELS_RSP_MASK
)));
4224 icmd
= &elsiocb
->iocb
;
4225 oldcmd
= &oldiocb
->iocb
;
4226 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
4227 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
4229 /* Xmit PRLI ACC response tag <ulpIoTag> */
4230 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4231 "0131 Xmit PRLI ACC response tag x%x xri x%x, "
4232 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
4233 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
4234 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
4236 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
4238 *((uint32_t *) (pcmd
)) = (ELS_CMD_ACC
| (ELS_CMD_PRLI
& ~ELS_RSP_MASK
));
4239 pcmd
+= sizeof(uint32_t);
4241 /* For PRLI, remainder of payload is PRLI parameter page */
4242 memset(pcmd
, 0, sizeof(PRLI
));
4244 npr
= (PRLI
*) pcmd
;
4247 * If the remote port is a target and our firmware version is 3.20 or
4248 * later, set the following bits for FC-TAPE support.
4250 if ((ndlp
->nlp_type
& NLP_FCP_TARGET
) &&
4251 (vpd
->rev
.feaLevelHigh
>= 0x02)) {
4252 npr
->ConfmComplAllowed
= 1;
4254 npr
->TaskRetryIdReq
= 1;
4257 npr
->acceptRspCode
= PRLI_REQ_EXECUTED
;
4258 npr
->estabImagePair
= 1;
4259 npr
->readXferRdyDis
= 1;
4260 npr
->ConfmComplAllowed
= 1;
4262 npr
->prliType
= PRLI_FCP_TYPE
;
4263 npr
->initiatorFunc
= 1;
4265 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
4266 "Issue ACC PRLI: did:x%x flg:x%x",
4267 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
4269 phba
->fc_stat
.elsXmitACC
++;
4270 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
4272 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
4273 if (rc
== IOCB_ERROR
) {
4274 lpfc_els_free_iocb(phba
, elsiocb
);
4281 * lpfc_els_rsp_rnid_acc - Issue rnid acc response iocb command
4282 * @vport: pointer to a virtual N_Port data structure.
4283 * @format: rnid command format.
4284 * @oldiocb: pointer to the original lpfc command iocb data structure.
4285 * @ndlp: pointer to a node-list data structure.
4287 * This routine issues a Request Node Identification Data (RNID) Accept
4288 * (ACC) response. It constructs the RNID ACC response command according to
4289 * the proper @format and then calls the lpfc_sli_issue_iocb() routine to
4290 * issue the response. Note that this command does not need to hold the ndlp
4291 * reference count for the callback. So, the ndlp reference count taken by
4292 * the lpfc_prep_els_iocb() routine is put back and the context1 field of
4293 * IOCB is set to NULL to indicate to the lpfc_els_free_iocb() routine that
4294 * there is no ndlp reference available.
4296 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4297 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4298 * will be stored into the context1 field of the IOCB for the completion
4299 * callback function. However, for the RNID Accept Response ELS command,
4300 * this is undone later by this routine after the IOCB is allocated.
4303 * 0 - Successfully issued acc rnid response
4304 * 1 - Failed to issue acc rnid response
4307 lpfc_els_rsp_rnid_acc(struct lpfc_vport
*vport
, uint8_t format
,
4308 struct lpfc_iocbq
*oldiocb
, struct lpfc_nodelist
*ndlp
)
4310 struct lpfc_hba
*phba
= vport
->phba
;
4312 IOCB_t
*icmd
, *oldcmd
;
4313 struct lpfc_iocbq
*elsiocb
;
4318 cmdsize
= sizeof(uint32_t) + sizeof(uint32_t)
4319 + (2 * sizeof(struct lpfc_name
));
4321 cmdsize
+= sizeof(RNID_TOP_DISC
);
4323 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
, ndlp
,
4324 ndlp
->nlp_DID
, ELS_CMD_ACC
);
4328 icmd
= &elsiocb
->iocb
;
4329 oldcmd
= &oldiocb
->iocb
;
4330 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
4331 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
4333 /* Xmit RNID ACC response tag <ulpIoTag> */
4334 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4335 "0132 Xmit RNID ACC response tag x%x xri x%x\n",
4336 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
);
4337 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
4338 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
4339 pcmd
+= sizeof(uint32_t);
4341 memset(pcmd
, 0, sizeof(RNID
));
4342 rn
= (RNID
*) (pcmd
);
4343 rn
->Format
= format
;
4344 rn
->CommonLen
= (2 * sizeof(struct lpfc_name
));
4345 memcpy(&rn
->portName
, &vport
->fc_portname
, sizeof(struct lpfc_name
));
4346 memcpy(&rn
->nodeName
, &vport
->fc_nodename
, sizeof(struct lpfc_name
));
4349 rn
->SpecificLen
= 0;
4351 case RNID_TOPOLOGY_DISC
:
4352 rn
->SpecificLen
= sizeof(RNID_TOP_DISC
);
4353 memcpy(&rn
->un
.topologyDisc
.portName
,
4354 &vport
->fc_portname
, sizeof(struct lpfc_name
));
4355 rn
->un
.topologyDisc
.unitType
= RNID_HBA
;
4356 rn
->un
.topologyDisc
.physPort
= 0;
4357 rn
->un
.topologyDisc
.attachedNodes
= 0;
4361 rn
->SpecificLen
= 0;
4365 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
4366 "Issue ACC RNID: did:x%x flg:x%x",
4367 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
4369 phba
->fc_stat
.elsXmitACC
++;
4370 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
4372 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
4373 if (rc
== IOCB_ERROR
) {
4374 lpfc_els_free_iocb(phba
, elsiocb
);
4381 * lpfc_els_clear_rrq - Clear the rq that this rrq describes.
4382 * @vport: pointer to a virtual N_Port data structure.
4383 * @iocb: pointer to the lpfc command iocb data structure.
4384 * @ndlp: pointer to a node-list data structure.
4389 lpfc_els_clear_rrq(struct lpfc_vport
*vport
,
4390 struct lpfc_iocbq
*iocb
, struct lpfc_nodelist
*ndlp
)
4392 struct lpfc_hba
*phba
= vport
->phba
;
4397 struct lpfc_node_rrq
*prrq
;
4400 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) iocb
->context2
)->virt
);
4401 pcmd
+= sizeof(uint32_t);
4402 rrq
= (struct RRQ
*)pcmd
;
4403 rrq
->rrq_exchg
= be32_to_cpu(rrq
->rrq_exchg
);
4404 rxid
= bf_get(rrq_rxid
, rrq
);
4406 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4407 "2883 Clear RRQ for SID:x%x OXID:x%x RXID:x%x"
4409 be32_to_cpu(bf_get(rrq_did
, rrq
)),
4410 bf_get(rrq_oxid
, rrq
),
4412 iocb
->iotag
, iocb
->iocb
.ulpContext
);
4414 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
4415 "Clear RRQ: did:x%x flg:x%x exchg:x%.08x",
4416 ndlp
->nlp_DID
, ndlp
->nlp_flag
, rrq
->rrq_exchg
);
4417 if (vport
->fc_myDID
== be32_to_cpu(bf_get(rrq_did
, rrq
)))
4418 xri
= bf_get(rrq_oxid
, rrq
);
4421 prrq
= lpfc_get_active_rrq(vport
, xri
, ndlp
->nlp_DID
);
4423 lpfc_clr_rrq_active(phba
, xri
, prrq
);
4428 * lpfc_els_rsp_echo_acc - Issue echo acc response
4429 * @vport: pointer to a virtual N_Port data structure.
4430 * @data: pointer to echo data to return in the accept.
4431 * @oldiocb: pointer to the original lpfc command iocb data structure.
4432 * @ndlp: pointer to a node-list data structure.
4435 * 0 - Successfully issued acc echo response
4436 * 1 - Failed to issue acc echo response
4439 lpfc_els_rsp_echo_acc(struct lpfc_vport
*vport
, uint8_t *data
,
4440 struct lpfc_iocbq
*oldiocb
, struct lpfc_nodelist
*ndlp
)
4442 struct lpfc_hba
*phba
= vport
->phba
;
4443 struct lpfc_iocbq
*elsiocb
;
4448 cmdsize
= oldiocb
->iocb
.unsli3
.rcvsli3
.acc_len
;
4450 /* The accumulated length can exceed the BPL_SIZE. For
4451 * now, use this as the limit
4453 if (cmdsize
> LPFC_BPL_SIZE
)
4454 cmdsize
= LPFC_BPL_SIZE
;
4455 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
, ndlp
,
4456 ndlp
->nlp_DID
, ELS_CMD_ACC
);
4460 elsiocb
->iocb
.ulpContext
= oldiocb
->iocb
.ulpContext
; /* Xri / rx_id */
4461 elsiocb
->iocb
.unsli3
.rcvsli3
.ox_id
= oldiocb
->iocb
.unsli3
.rcvsli3
.ox_id
;
4463 /* Xmit ECHO ACC response tag <ulpIoTag> */
4464 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4465 "2876 Xmit ECHO ACC response tag x%x xri x%x\n",
4466 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
);
4467 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
4468 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
4469 pcmd
+= sizeof(uint32_t);
4470 memcpy(pcmd
, data
, cmdsize
- sizeof(uint32_t));
4472 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
4473 "Issue ACC ECHO: did:x%x flg:x%x",
4474 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
4476 phba
->fc_stat
.elsXmitACC
++;
4477 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
4479 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
4480 if (rc
== IOCB_ERROR
) {
4481 lpfc_els_free_iocb(phba
, elsiocb
);
4488 * lpfc_els_disc_adisc - Issue remaining adisc iocbs to npr nodes of a vport
4489 * @vport: pointer to a host virtual N_Port data structure.
4491 * This routine issues Address Discover (ADISC) ELS commands to those
4492 * N_Ports which are in node port recovery state and ADISC has not been issued
4493 * for the @vport. Each time an ELS ADISC IOCB is issued by invoking the
4494 * lpfc_issue_els_adisc() routine, the per @vport number of discover count
4495 * (num_disc_nodes) shall be incremented. If the num_disc_nodes reaches a
4496 * pre-configured threshold (cfg_discovery_threads), the @vport fc_flag will
4497 * be marked with FC_NLP_MORE bit and the process of issuing remaining ADISC
4498 * IOCBs quit for later pick up. On the other hand, after walking through
4499 * all the ndlps with the @vport and there is none ADISC IOCB issued, the
4500 * @vport fc_flag shall be cleared with FC_NLP_MORE bit indicating there is
4501 * no more ADISC need to be sent.
4504 * The number of N_Ports with adisc issued.
4507 lpfc_els_disc_adisc(struct lpfc_vport
*vport
)
4509 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4510 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
4513 /* go thru NPR nodes and issue any remaining ELS ADISCs */
4514 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
, nlp_listp
) {
4515 if (!NLP_CHK_NODE_ACT(ndlp
))
4517 if (ndlp
->nlp_state
== NLP_STE_NPR_NODE
&&
4518 (ndlp
->nlp_flag
& NLP_NPR_2B_DISC
) != 0 &&
4519 (ndlp
->nlp_flag
& NLP_NPR_ADISC
) != 0) {
4520 spin_lock_irq(shost
->host_lock
);
4521 ndlp
->nlp_flag
&= ~NLP_NPR_ADISC
;
4522 spin_unlock_irq(shost
->host_lock
);
4523 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
4524 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_ADISC_ISSUE
);
4525 lpfc_issue_els_adisc(vport
, ndlp
, 0);
4527 vport
->num_disc_nodes
++;
4528 if (vport
->num_disc_nodes
>=
4529 vport
->cfg_discovery_threads
) {
4530 spin_lock_irq(shost
->host_lock
);
4531 vport
->fc_flag
|= FC_NLP_MORE
;
4532 spin_unlock_irq(shost
->host_lock
);
4537 if (sentadisc
== 0) {
4538 spin_lock_irq(shost
->host_lock
);
4539 vport
->fc_flag
&= ~FC_NLP_MORE
;
4540 spin_unlock_irq(shost
->host_lock
);
4546 * lpfc_els_disc_plogi - Issue plogi for all npr nodes of a vport before adisc
4547 * @vport: pointer to a host virtual N_Port data structure.
4549 * This routine issues Port Login (PLOGI) ELS commands to all the N_Ports
4550 * which are in node port recovery state, with a @vport. Each time an ELS
4551 * ADISC PLOGI IOCB is issued by invoking the lpfc_issue_els_plogi() routine,
4552 * the per @vport number of discover count (num_disc_nodes) shall be
4553 * incremented. If the num_disc_nodes reaches a pre-configured threshold
4554 * (cfg_discovery_threads), the @vport fc_flag will be marked with FC_NLP_MORE
4555 * bit set and quit the process of issuing remaining ADISC PLOGIN IOCBs for
4556 * later pick up. On the other hand, after walking through all the ndlps with
4557 * the @vport and there is none ADISC PLOGI IOCB issued, the @vport fc_flag
4558 * shall be cleared with the FC_NLP_MORE bit indicating there is no more ADISC
4559 * PLOGI need to be sent.
4562 * The number of N_Ports with plogi issued.
4565 lpfc_els_disc_plogi(struct lpfc_vport
*vport
)
4567 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4568 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
4571 /* go thru NPR nodes and issue any remaining ELS PLOGIs */
4572 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
, nlp_listp
) {
4573 if (!NLP_CHK_NODE_ACT(ndlp
))
4575 if (ndlp
->nlp_state
== NLP_STE_NPR_NODE
&&
4576 (ndlp
->nlp_flag
& NLP_NPR_2B_DISC
) != 0 &&
4577 (ndlp
->nlp_flag
& NLP_DELAY_TMO
) == 0 &&
4578 (ndlp
->nlp_flag
& NLP_NPR_ADISC
) == 0) {
4579 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
4580 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_PLOGI_ISSUE
);
4581 lpfc_issue_els_plogi(vport
, ndlp
->nlp_DID
, 0);
4583 vport
->num_disc_nodes
++;
4584 if (vport
->num_disc_nodes
>=
4585 vport
->cfg_discovery_threads
) {
4586 spin_lock_irq(shost
->host_lock
);
4587 vport
->fc_flag
|= FC_NLP_MORE
;
4588 spin_unlock_irq(shost
->host_lock
);
4594 lpfc_set_disctmo(vport
);
4597 spin_lock_irq(shost
->host_lock
);
4598 vport
->fc_flag
&= ~FC_NLP_MORE
;
4599 spin_unlock_irq(shost
->host_lock
);
4605 lpfc_rdp_res_link_service(struct fc_rdp_link_service_desc
*desc
,
4609 desc
->tag
= cpu_to_be32(RDP_LINK_SERVICE_DESC_TAG
);
4610 desc
->payload
.els_req
= word0
;
4611 desc
->length
= cpu_to_be32(sizeof(desc
->payload
));
4615 lpfc_rdp_res_sfp_desc(struct fc_rdp_sfp_desc
*desc
,
4616 uint8_t *page_a0
, uint8_t *page_a2
)
4618 uint16_t wavelength
;
4619 uint16_t temperature
;
4625 struct sff_trasnceiver_codes_byte4
*trasn_code_byte4
;
4626 struct sff_trasnceiver_codes_byte5
*trasn_code_byte5
;
4628 desc
->tag
= cpu_to_be32(RDP_SFP_DESC_TAG
);
4630 trasn_code_byte4
= (struct sff_trasnceiver_codes_byte4
*)
4631 &page_a0
[SSF_TRANSCEIVER_CODE_B4
];
4632 trasn_code_byte5
= (struct sff_trasnceiver_codes_byte5
*)
4633 &page_a0
[SSF_TRANSCEIVER_CODE_B5
];
4635 if ((trasn_code_byte4
->fc_sw_laser
) ||
4636 (trasn_code_byte5
->fc_sw_laser_sl
) ||
4637 (trasn_code_byte5
->fc_sw_laser_sn
)) { /* check if its short WL */
4638 flag
|= (SFP_FLAG_PT_SWLASER
<< SFP_FLAG_PT_SHIFT
);
4639 } else if (trasn_code_byte4
->fc_lw_laser
) {
4640 wavelength
= (page_a0
[SSF_WAVELENGTH_B1
] << 8) |
4641 page_a0
[SSF_WAVELENGTH_B0
];
4642 if (wavelength
== SFP_WAVELENGTH_LC1310
)
4643 flag
|= SFP_FLAG_PT_LWLASER_LC1310
<< SFP_FLAG_PT_SHIFT
;
4644 if (wavelength
== SFP_WAVELENGTH_LL1550
)
4645 flag
|= SFP_FLAG_PT_LWLASER_LL1550
<< SFP_FLAG_PT_SHIFT
;
4647 /* check if its SFP+ */
4648 flag
|= ((page_a0
[SSF_IDENTIFIER
] == SFF_PG0_IDENT_SFP
) ?
4649 SFP_FLAG_CT_SFP_PLUS
: SFP_FLAG_CT_UNKNOWN
)
4650 << SFP_FLAG_CT_SHIFT
;
4652 /* check if its OPTICAL */
4653 flag
|= ((page_a0
[SSF_CONNECTOR
] == SFF_PG0_CONNECTOR_LC
) ?
4654 SFP_FLAG_IS_OPTICAL_PORT
: 0)
4655 << SFP_FLAG_IS_OPTICAL_SHIFT
;
4657 temperature
= (page_a2
[SFF_TEMPERATURE_B1
] << 8 |
4658 page_a2
[SFF_TEMPERATURE_B0
]);
4659 vcc
= (page_a2
[SFF_VCC_B1
] << 8 |
4660 page_a2
[SFF_VCC_B0
]);
4661 tx_power
= (page_a2
[SFF_TXPOWER_B1
] << 8 |
4662 page_a2
[SFF_TXPOWER_B0
]);
4663 tx_bias
= (page_a2
[SFF_TX_BIAS_CURRENT_B1
] << 8 |
4664 page_a2
[SFF_TX_BIAS_CURRENT_B0
]);
4665 rx_power
= (page_a2
[SFF_RXPOWER_B1
] << 8 |
4666 page_a2
[SFF_RXPOWER_B0
]);
4667 desc
->sfp_info
.temperature
= cpu_to_be16(temperature
);
4668 desc
->sfp_info
.rx_power
= cpu_to_be16(rx_power
);
4669 desc
->sfp_info
.tx_bias
= cpu_to_be16(tx_bias
);
4670 desc
->sfp_info
.tx_power
= cpu_to_be16(tx_power
);
4671 desc
->sfp_info
.vcc
= cpu_to_be16(vcc
);
4673 desc
->sfp_info
.flags
= cpu_to_be16(flag
);
4674 desc
->length
= cpu_to_be32(sizeof(desc
->sfp_info
));
4678 lpfc_rdp_res_link_error(struct fc_rdp_link_error_status_desc
*desc
,
4683 desc
->tag
= cpu_to_be32(RDP_LINK_ERROR_STATUS_DESC_TAG
);
4685 type
= VN_PT_PHY_PF_PORT
<< VN_PT_PHY_SHIFT
;
4687 desc
->info
.port_type
= cpu_to_be32(type
);
4689 desc
->info
.link_status
.link_failure_cnt
=
4690 cpu_to_be32(stat
->linkFailureCnt
);
4691 desc
->info
.link_status
.loss_of_synch_cnt
=
4692 cpu_to_be32(stat
->lossSyncCnt
);
4693 desc
->info
.link_status
.loss_of_signal_cnt
=
4694 cpu_to_be32(stat
->lossSignalCnt
);
4695 desc
->info
.link_status
.primitive_seq_proto_err
=
4696 cpu_to_be32(stat
->primSeqErrCnt
);
4697 desc
->info
.link_status
.invalid_trans_word
=
4698 cpu_to_be32(stat
->invalidXmitWord
);
4699 desc
->info
.link_status
.invalid_crc_cnt
= cpu_to_be32(stat
->crcCnt
);
4701 desc
->length
= cpu_to_be32(sizeof(desc
->info
));
4705 lpfc_rdp_res_speed(struct fc_rdp_port_speed_desc
*desc
, struct lpfc_hba
*phba
)
4707 uint16_t rdp_cap
= 0;
4710 desc
->tag
= cpu_to_be32(RDP_PORT_SPEED_DESC_TAG
);
4712 switch (phba
->fc_linkspeed
) {
4713 case LPFC_LINK_SPEED_1GHZ
:
4714 rdp_speed
= RDP_PS_1GB
;
4716 case LPFC_LINK_SPEED_2GHZ
:
4717 rdp_speed
= RDP_PS_2GB
;
4719 case LPFC_LINK_SPEED_4GHZ
:
4720 rdp_speed
= RDP_PS_4GB
;
4722 case LPFC_LINK_SPEED_8GHZ
:
4723 rdp_speed
= RDP_PS_8GB
;
4725 case LPFC_LINK_SPEED_10GHZ
:
4726 rdp_speed
= RDP_PS_10GB
;
4728 case LPFC_LINK_SPEED_16GHZ
:
4729 rdp_speed
= RDP_PS_16GB
;
4732 rdp_speed
= RDP_PS_UNKNOWN
;
4736 desc
->info
.port_speed
.speed
= cpu_to_be16(rdp_speed
);
4738 if (phba
->lmt
& LMT_32Gb
)
4739 rdp_cap
|= RDP_PS_32GB
;
4740 if (phba
->lmt
& LMT_16Gb
)
4741 rdp_cap
|= RDP_PS_16GB
;
4742 if (phba
->lmt
& LMT_10Gb
)
4743 rdp_cap
|= RDP_PS_10GB
;
4744 if (phba
->lmt
& LMT_8Gb
)
4745 rdp_cap
|= RDP_PS_8GB
;
4746 if (phba
->lmt
& LMT_4Gb
)
4747 rdp_cap
|= RDP_PS_4GB
;
4748 if (phba
->lmt
& LMT_2Gb
)
4749 rdp_cap
|= RDP_PS_2GB
;
4750 if (phba
->lmt
& LMT_1Gb
)
4751 rdp_cap
|= RDP_PS_1GB
;
4754 rdp_cap
= RDP_CAP_UNKNOWN
;
4756 desc
->info
.port_speed
.capabilities
= cpu_to_be16(rdp_cap
);
4757 desc
->length
= cpu_to_be32(sizeof(desc
->info
));
4761 lpfc_rdp_res_diag_port_names(struct fc_rdp_port_name_desc
*desc
,
4762 struct lpfc_hba
*phba
)
4765 desc
->tag
= cpu_to_be32(RDP_PORT_NAMES_DESC_TAG
);
4767 memcpy(desc
->port_names
.wwnn
, phba
->wwnn
,
4768 sizeof(desc
->port_names
.wwnn
));
4770 memcpy(desc
->port_names
.wwpn
, &phba
->wwpn
,
4771 sizeof(desc
->port_names
.wwpn
));
4773 desc
->length
= cpu_to_be32(sizeof(desc
->port_names
));
4777 lpfc_rdp_res_attach_port_names(struct fc_rdp_port_name_desc
*desc
,
4778 struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
4781 desc
->tag
= cpu_to_be32(RDP_PORT_NAMES_DESC_TAG
);
4782 if (vport
->fc_flag
& FC_FABRIC
) {
4783 memcpy(desc
->port_names
.wwnn
, &vport
->fabric_nodename
,
4784 sizeof(desc
->port_names
.wwnn
));
4786 memcpy(desc
->port_names
.wwpn
, &vport
->fabric_portname
,
4787 sizeof(desc
->port_names
.wwpn
));
4788 } else { /* Point to Point */
4789 memcpy(desc
->port_names
.wwnn
, &ndlp
->nlp_nodename
,
4790 sizeof(desc
->port_names
.wwnn
));
4792 memcpy(desc
->port_names
.wwnn
, &ndlp
->nlp_portname
,
4793 sizeof(desc
->port_names
.wwpn
));
4796 desc
->length
= cpu_to_be32(sizeof(desc
->port_names
));
4800 lpfc_els_rdp_cmpl(struct lpfc_hba
*phba
, struct lpfc_rdp_context
*rdp_context
,
4803 struct lpfc_nodelist
*ndlp
= rdp_context
->ndlp
;
4804 struct lpfc_vport
*vport
= ndlp
->vport
;
4805 struct lpfc_iocbq
*elsiocb
;
4808 struct ls_rjt
*stat
;
4809 struct fc_rdp_res_frame
*rdp_res
;
4813 if (status
!= SUCCESS
)
4815 cmdsize
= sizeof(struct fc_rdp_res_frame
);
4817 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
,
4818 lpfc_max_els_tries
, rdp_context
->ndlp
,
4819 rdp_context
->ndlp
->nlp_DID
, ELS_CMD_ACC
);
4822 goto free_rdp_context
;
4824 icmd
= &elsiocb
->iocb
;
4825 icmd
->ulpContext
= rdp_context
->rx_id
;
4826 icmd
->unsli3
.rcvsli3
.ox_id
= rdp_context
->ox_id
;
4828 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4829 "2171 Xmit RDP response tag x%x xri x%x, "
4830 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x",
4831 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
4832 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
4834 rdp_res
= (struct fc_rdp_res_frame
*)
4835 (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
4836 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
4837 memset(pcmd
, 0, sizeof(struct fc_rdp_res_frame
));
4838 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
4840 /* For RDP payload */
4841 lpfc_rdp_res_link_service(&rdp_res
->link_service_desc
, ELS_CMD_RDP
);
4843 lpfc_rdp_res_sfp_desc(&rdp_res
->sfp_desc
,
4844 rdp_context
->page_a0
, rdp_context
->page_a2
);
4845 lpfc_rdp_res_speed(&rdp_res
->portspeed_desc
, phba
);
4846 lpfc_rdp_res_link_error(&rdp_res
->link_error_desc
,
4847 &rdp_context
->link_stat
);
4848 lpfc_rdp_res_diag_port_names(&rdp_res
->diag_port_names_desc
, phba
);
4849 lpfc_rdp_res_attach_port_names(&rdp_res
->attached_port_names_desc
,
4851 rdp_res
->length
= cpu_to_be32(RDP_DESC_PAYLOAD_SIZE
);
4853 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
4855 phba
->fc_stat
.elsXmitACC
++;
4856 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
4857 if (rc
== IOCB_ERROR
)
4858 lpfc_els_free_iocb(phba
, elsiocb
);
4864 cmdsize
= 2 * sizeof(uint32_t);
4865 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, lpfc_max_els_tries
,
4866 ndlp
, ndlp
->nlp_DID
, ELS_CMD_LS_RJT
);
4869 goto free_rdp_context
;
4871 icmd
= &elsiocb
->iocb
;
4872 icmd
->ulpContext
= rdp_context
->rx_id
;
4873 icmd
->unsli3
.rcvsli3
.ox_id
= rdp_context
->ox_id
;
4874 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
4876 *((uint32_t *) (pcmd
)) = ELS_CMD_LS_RJT
;
4877 stat
= (struct ls_rjt
*)(pcmd
+ sizeof(uint32_t));
4878 stat
->un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
4880 phba
->fc_stat
.elsXmitLSRJT
++;
4881 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
4882 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
4884 if (rc
== IOCB_ERROR
)
4885 lpfc_els_free_iocb(phba
, elsiocb
);
4891 lpfc_get_rdp_info(struct lpfc_hba
*phba
, struct lpfc_rdp_context
*rdp_context
)
4893 LPFC_MBOXQ_t
*mbox
= NULL
;
4896 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
4898 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
| LOG_ELS
,
4899 "7105 failed to allocate mailbox memory");
4903 if (lpfc_sli4_dump_page_a0(phba
, mbox
))
4904 goto prep_mbox_fail
;
4905 mbox
->vport
= rdp_context
->ndlp
->vport
;
4906 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_rdp_page_a0
;
4907 mbox
->context2
= (struct lpfc_rdp_context
*) rdp_context
;
4908 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
4909 if (rc
== MBX_NOT_FINISHED
)
4910 goto issue_mbox_fail
;
4916 mempool_free(mbox
, phba
->mbox_mem_pool
);
4921 * lpfc_els_rcv_rdp - Process an unsolicited RDP ELS.
4922 * @vport: pointer to a host virtual N_Port data structure.
4923 * @cmdiocb: pointer to lpfc command iocb data structure.
4924 * @ndlp: pointer to a node-list data structure.
4926 * This routine processes an unsolicited RDP(Read Diagnostic Parameters)
4927 * IOCB. First, the payload of the unsolicited RDP is checked.
4928 * Then it will (1) send MBX_DUMP_MEMORY, Embedded DMP_LMSD sub command TYPE-3
4929 * for Page A0, (2) send MBX_DUMP_MEMORY, DMP_LMSD for Page A2,
4930 * (3) send MBX_READ_LNK_STAT to get link stat, (4) Call lpfc_els_rdp_cmpl
4931 * gather all data and send RDP response.
4934 * 0 - Sent the acc response
4935 * 1 - Sent the reject response.
4938 lpfc_els_rcv_rdp(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
4939 struct lpfc_nodelist
*ndlp
)
4941 struct lpfc_hba
*phba
= vport
->phba
;
4942 struct lpfc_dmabuf
*pcmd
;
4943 uint8_t rjt_err
, rjt_expl
= LSEXP_NOTHING_MORE
;
4944 struct fc_rdp_req_frame
*rdp_req
;
4945 struct lpfc_rdp_context
*rdp_context
;
4949 if (phba
->sli_rev
< LPFC_SLI_REV4
||
4950 (bf_get(lpfc_sli_intf_if_type
,
4951 &phba
->sli4_hba
.sli_intf
) !=
4952 LPFC_SLI_INTF_IF_TYPE_2
)) {
4953 rjt_err
= LSRJT_UNABLE_TPC
;
4954 rjt_expl
= LSEXP_REQ_UNSUPPORTED
;
4958 if (phba
->sli_rev
< LPFC_SLI_REV4
|| (phba
->hba_flag
& HBA_FCOE_MODE
)) {
4959 rjt_err
= LSRJT_UNABLE_TPC
;
4960 rjt_expl
= LSEXP_REQ_UNSUPPORTED
;
4964 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
4965 rdp_req
= (struct fc_rdp_req_frame
*) pcmd
->virt
;
4968 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4969 "2422 ELS RDP Request "
4970 "dec len %d tag x%x port_id %d len %d\n",
4971 be32_to_cpu(rdp_req
->rdp_des_length
),
4972 be32_to_cpu(rdp_req
->nport_id_desc
.tag
),
4973 be32_to_cpu(rdp_req
->nport_id_desc
.nport_id
),
4974 be32_to_cpu(rdp_req
->nport_id_desc
.length
));
4976 if (sizeof(struct fc_rdp_nport_desc
) !=
4977 be32_to_cpu(rdp_req
->rdp_des_length
))
4979 if (RDP_N_PORT_DESC_TAG
!= be32_to_cpu(rdp_req
->nport_id_desc
.tag
))
4981 if (RDP_NPORT_ID_SIZE
!=
4982 be32_to_cpu(rdp_req
->nport_id_desc
.length
))
4984 rdp_context
= kmalloc(sizeof(struct lpfc_rdp_context
), GFP_KERNEL
);
4986 rjt_err
= LSRJT_UNABLE_TPC
;
4990 memset(rdp_context
, 0, sizeof(struct lpfc_rdp_context
));
4991 cmd
= &cmdiocb
->iocb
;
4992 rdp_context
->ndlp
= lpfc_nlp_get(ndlp
);
4993 rdp_context
->ox_id
= cmd
->unsli3
.rcvsli3
.ox_id
;
4994 rdp_context
->rx_id
= cmd
->ulpContext
;
4995 rdp_context
->cmpl
= lpfc_els_rdp_cmpl
;
4996 if (lpfc_get_rdp_info(phba
, rdp_context
)) {
4997 lpfc_printf_vlog(ndlp
->vport
, KERN_WARNING
, LOG_ELS
,
4998 "2423 Unable to send mailbox");
5000 rjt_err
= LSRJT_UNABLE_TPC
;
5008 rjt_err
= LSRJT_LOGICAL_ERR
;
5011 memset(&stat
, 0, sizeof(stat
));
5012 stat
.un
.b
.lsRjtRsnCode
= rjt_err
;
5013 stat
.un
.b
.lsRjtRsnCodeExp
= rjt_expl
;
5014 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
, NULL
);
5020 lpfc_els_lcb_rsp(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
5025 struct lpfc_iocbq
*elsiocb
;
5026 struct lpfc_nodelist
*ndlp
;
5027 struct ls_rjt
*stat
;
5028 union lpfc_sli4_cfg_shdr
*shdr
;
5029 struct lpfc_lcb_context
*lcb_context
;
5030 struct fc_lcb_res_frame
*lcb_res
;
5031 uint32_t cmdsize
, shdr_status
, shdr_add_status
;
5035 lcb_context
= (struct lpfc_lcb_context
*)pmb
->context1
;
5036 ndlp
= lcb_context
->ndlp
;
5037 pmb
->context1
= NULL
;
5038 pmb
->context2
= NULL
;
5040 shdr
= (union lpfc_sli4_cfg_shdr
*)
5041 &pmb
->u
.mqe
.un
.beacon_config
.header
.cfg_shdr
;
5042 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
5043 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
5045 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
,
5046 "0194 SET_BEACON_CONFIG mailbox "
5047 "completed with status x%x add_status x%x,"
5048 " mbx status x%x\n",
5049 shdr_status
, shdr_add_status
, mb
->mbxStatus
);
5051 if (mb
->mbxStatus
&& !(shdr_status
&&
5052 shdr_add_status
== ADD_STATUS_OPERATION_ALREADY_ACTIVE
)) {
5053 mempool_free(pmb
, phba
->mbox_mem_pool
);
5057 mempool_free(pmb
, phba
->mbox_mem_pool
);
5058 cmdsize
= sizeof(struct fc_lcb_res_frame
);
5059 elsiocb
= lpfc_prep_els_iocb(phba
->pport
, 0, cmdsize
,
5060 lpfc_max_els_tries
, ndlp
,
5061 ndlp
->nlp_DID
, ELS_CMD_ACC
);
5063 /* Decrement the ndlp reference count from previous mbox command */
5067 goto free_lcb_context
;
5069 lcb_res
= (struct fc_lcb_res_frame
*)
5070 (((struct lpfc_dmabuf
*)elsiocb
->context2
)->virt
);
5072 icmd
= &elsiocb
->iocb
;
5073 icmd
->ulpContext
= lcb_context
->rx_id
;
5074 icmd
->unsli3
.rcvsli3
.ox_id
= lcb_context
->ox_id
;
5076 pcmd
= (uint8_t *)(((struct lpfc_dmabuf
*)elsiocb
->context2
)->virt
);
5077 *((uint32_t *)(pcmd
)) = ELS_CMD_ACC
;
5078 lcb_res
->lcb_sub_command
= lcb_context
->sub_command
;
5079 lcb_res
->lcb_type
= lcb_context
->type
;
5080 lcb_res
->lcb_frequency
= lcb_context
->frequency
;
5081 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
5082 phba
->fc_stat
.elsXmitACC
++;
5083 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
5084 if (rc
== IOCB_ERROR
)
5085 lpfc_els_free_iocb(phba
, elsiocb
);
5091 cmdsize
= sizeof(struct fc_lcb_res_frame
);
5092 elsiocb
= lpfc_prep_els_iocb(phba
->pport
, 0, cmdsize
,
5093 lpfc_max_els_tries
, ndlp
,
5094 ndlp
->nlp_DID
, ELS_CMD_LS_RJT
);
5097 goto free_lcb_context
;
5099 icmd
= &elsiocb
->iocb
;
5100 icmd
->ulpContext
= lcb_context
->rx_id
;
5101 icmd
->unsli3
.rcvsli3
.ox_id
= lcb_context
->ox_id
;
5102 pcmd
= (uint8_t *)(((struct lpfc_dmabuf
*)elsiocb
->context2
)->virt
);
5104 *((uint32_t *)(pcmd
)) = ELS_CMD_LS_RJT
;
5105 stat
= (struct ls_rjt
*)(pcmd
+ sizeof(uint32_t));
5106 stat
->un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
5108 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
5109 phba
->fc_stat
.elsXmitLSRJT
++;
5110 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
5111 if (rc
== IOCB_ERROR
)
5112 lpfc_els_free_iocb(phba
, elsiocb
);
5118 lpfc_sli4_set_beacon(struct lpfc_vport
*vport
,
5119 struct lpfc_lcb_context
*lcb_context
,
5120 uint32_t beacon_state
)
5122 struct lpfc_hba
*phba
= vport
->phba
;
5123 LPFC_MBOXQ_t
*mbox
= NULL
;
5127 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
5131 len
= sizeof(struct lpfc_mbx_set_beacon_config
) -
5132 sizeof(struct lpfc_sli4_cfg_mhdr
);
5133 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
5134 LPFC_MBOX_OPCODE_SET_BEACON_CONFIG
, len
,
5135 LPFC_SLI4_MBX_EMBED
);
5136 mbox
->context1
= (void *)lcb_context
;
5137 mbox
->vport
= phba
->pport
;
5138 mbox
->mbox_cmpl
= lpfc_els_lcb_rsp
;
5139 bf_set(lpfc_mbx_set_beacon_port_num
, &mbox
->u
.mqe
.un
.beacon_config
,
5140 phba
->sli4_hba
.physical_port
);
5141 bf_set(lpfc_mbx_set_beacon_state
, &mbox
->u
.mqe
.un
.beacon_config
,
5143 bf_set(lpfc_mbx_set_beacon_port_type
, &mbox
->u
.mqe
.un
.beacon_config
, 1);
5144 bf_set(lpfc_mbx_set_beacon_duration
, &mbox
->u
.mqe
.un
.beacon_config
, 0);
5145 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
5146 if (rc
== MBX_NOT_FINISHED
) {
5147 mempool_free(mbox
, phba
->mbox_mem_pool
);
5156 * lpfc_els_rcv_lcb - Process an unsolicited LCB
5157 * @vport: pointer to a host virtual N_Port data structure.
5158 * @cmdiocb: pointer to lpfc command iocb data structure.
5159 * @ndlp: pointer to a node-list data structure.
5161 * This routine processes an unsolicited LCB(LINK CABLE BEACON) IOCB.
5162 * First, the payload of the unsolicited LCB is checked.
5163 * Then based on Subcommand beacon will either turn on or off.
5166 * 0 - Sent the acc response
5167 * 1 - Sent the reject response.
5170 lpfc_els_rcv_lcb(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5171 struct lpfc_nodelist
*ndlp
)
5173 struct lpfc_hba
*phba
= vport
->phba
;
5174 struct lpfc_dmabuf
*pcmd
;
5176 struct fc_lcb_request_frame
*beacon
;
5177 struct lpfc_lcb_context
*lcb_context
;
5178 uint8_t state
, rjt_err
;
5181 pcmd
= (struct lpfc_dmabuf
*)cmdiocb
->context2
;
5182 lp
= (uint8_t *)pcmd
->virt
;
5183 beacon
= (struct fc_lcb_request_frame
*)pcmd
->virt
;
5185 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
5186 "0192 ELS LCB Data x%x x%x x%x x%x sub x%x "
5187 "type x%x frequency %x duration x%x\n",
5188 lp
[0], lp
[1], lp
[2],
5189 beacon
->lcb_command
,
5190 beacon
->lcb_sub_command
,
5192 beacon
->lcb_frequency
,
5193 be16_to_cpu(beacon
->lcb_duration
));
5195 if (phba
->sli_rev
< LPFC_SLI_REV4
||
5196 (bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
) !=
5197 LPFC_SLI_INTF_IF_TYPE_2
)) {
5198 rjt_err
= LSRJT_CMD_UNSUPPORTED
;
5202 if (phba
->hba_flag
& HBA_FCOE_MODE
) {
5203 rjt_err
= LSRJT_CMD_UNSUPPORTED
;
5206 if (beacon
->lcb_frequency
== 0) {
5207 rjt_err
= LSRJT_CMD_UNSUPPORTED
;
5210 if ((beacon
->lcb_type
!= LPFC_LCB_GREEN
) &&
5211 (beacon
->lcb_type
!= LPFC_LCB_AMBER
)) {
5212 rjt_err
= LSRJT_CMD_UNSUPPORTED
;
5215 if ((beacon
->lcb_sub_command
!= LPFC_LCB_ON
) &&
5216 (beacon
->lcb_sub_command
!= LPFC_LCB_OFF
)) {
5217 rjt_err
= LSRJT_CMD_UNSUPPORTED
;
5220 if ((beacon
->lcb_sub_command
== LPFC_LCB_ON
) &&
5221 (beacon
->lcb_type
!= LPFC_LCB_GREEN
) &&
5222 (beacon
->lcb_type
!= LPFC_LCB_AMBER
)) {
5223 rjt_err
= LSRJT_CMD_UNSUPPORTED
;
5226 if (be16_to_cpu(beacon
->lcb_duration
) != 0) {
5227 rjt_err
= LSRJT_CMD_UNSUPPORTED
;
5231 lcb_context
= kmalloc(sizeof(*lcb_context
), GFP_KERNEL
);
5233 rjt_err
= LSRJT_UNABLE_TPC
;
5237 state
= (beacon
->lcb_sub_command
== LPFC_LCB_ON
) ? 1 : 0;
5238 lcb_context
->sub_command
= beacon
->lcb_sub_command
;
5239 lcb_context
->type
= beacon
->lcb_type
;
5240 lcb_context
->frequency
= beacon
->lcb_frequency
;
5241 lcb_context
->ox_id
= cmdiocb
->iocb
.unsli3
.rcvsli3
.ox_id
;
5242 lcb_context
->rx_id
= cmdiocb
->iocb
.ulpContext
;
5243 lcb_context
->ndlp
= lpfc_nlp_get(ndlp
);
5244 if (lpfc_sli4_set_beacon(vport
, lcb_context
, state
)) {
5245 lpfc_printf_vlog(ndlp
->vport
, KERN_ERR
,
5246 LOG_ELS
, "0193 failed to send mail box");
5249 rjt_err
= LSRJT_UNABLE_TPC
;
5254 memset(&stat
, 0, sizeof(stat
));
5255 stat
.un
.b
.lsRjtRsnCode
= rjt_err
;
5256 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
, NULL
);
5262 * lpfc_els_flush_rscn - Clean up any rscn activities with a vport
5263 * @vport: pointer to a host virtual N_Port data structure.
5265 * This routine cleans up any Registration State Change Notification
5266 * (RSCN) activity with a @vport. Note that the fc_rscn_flush flag of the
5267 * @vport together with the host_lock is used to prevent multiple thread
5268 * trying to access the RSCN array on a same @vport at the same time.
5271 lpfc_els_flush_rscn(struct lpfc_vport
*vport
)
5273 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
5274 struct lpfc_hba
*phba
= vport
->phba
;
5277 spin_lock_irq(shost
->host_lock
);
5278 if (vport
->fc_rscn_flush
) {
5279 /* Another thread is walking fc_rscn_id_list on this vport */
5280 spin_unlock_irq(shost
->host_lock
);
5283 /* Indicate we are walking lpfc_els_flush_rscn on this vport */
5284 vport
->fc_rscn_flush
= 1;
5285 spin_unlock_irq(shost
->host_lock
);
5287 for (i
= 0; i
< vport
->fc_rscn_id_cnt
; i
++) {
5288 lpfc_in_buf_free(phba
, vport
->fc_rscn_id_list
[i
]);
5289 vport
->fc_rscn_id_list
[i
] = NULL
;
5291 spin_lock_irq(shost
->host_lock
);
5292 vport
->fc_rscn_id_cnt
= 0;
5293 vport
->fc_flag
&= ~(FC_RSCN_MODE
| FC_RSCN_DISCOVERY
);
5294 spin_unlock_irq(shost
->host_lock
);
5295 lpfc_can_disctmo(vport
);
5296 /* Indicate we are done walking this fc_rscn_id_list */
5297 vport
->fc_rscn_flush
= 0;
5301 * lpfc_rscn_payload_check - Check whether there is a pending rscn to a did
5302 * @vport: pointer to a host virtual N_Port data structure.
5303 * @did: remote destination port identifier.
5305 * This routine checks whether there is any pending Registration State
5306 * Configuration Notification (RSCN) to a @did on @vport.
5309 * None zero - The @did matched with a pending rscn
5310 * 0 - not able to match @did with a pending rscn
5313 lpfc_rscn_payload_check(struct lpfc_vport
*vport
, uint32_t did
)
5318 uint32_t payload_len
, i
;
5319 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
5321 ns_did
.un
.word
= did
;
5323 /* Never match fabric nodes for RSCNs */
5324 if ((did
& Fabric_DID_MASK
) == Fabric_DID_MASK
)
5327 /* If we are doing a FULL RSCN rediscovery, match everything */
5328 if (vport
->fc_flag
& FC_RSCN_DISCOVERY
)
5331 spin_lock_irq(shost
->host_lock
);
5332 if (vport
->fc_rscn_flush
) {
5333 /* Another thread is walking fc_rscn_id_list on this vport */
5334 spin_unlock_irq(shost
->host_lock
);
5337 /* Indicate we are walking fc_rscn_id_list on this vport */
5338 vport
->fc_rscn_flush
= 1;
5339 spin_unlock_irq(shost
->host_lock
);
5340 for (i
= 0; i
< vport
->fc_rscn_id_cnt
; i
++) {
5341 lp
= vport
->fc_rscn_id_list
[i
]->virt
;
5342 payload_len
= be32_to_cpu(*lp
++ & ~ELS_CMD_MASK
);
5343 payload_len
-= sizeof(uint32_t); /* take off word 0 */
5344 while (payload_len
) {
5345 rscn_did
.un
.word
= be32_to_cpu(*lp
++);
5346 payload_len
-= sizeof(uint32_t);
5347 switch (rscn_did
.un
.b
.resv
& RSCN_ADDRESS_FORMAT_MASK
) {
5348 case RSCN_ADDRESS_FORMAT_PORT
:
5349 if ((ns_did
.un
.b
.domain
== rscn_did
.un
.b
.domain
)
5350 && (ns_did
.un
.b
.area
== rscn_did
.un
.b
.area
)
5351 && (ns_did
.un
.b
.id
== rscn_did
.un
.b
.id
))
5352 goto return_did_out
;
5354 case RSCN_ADDRESS_FORMAT_AREA
:
5355 if ((ns_did
.un
.b
.domain
== rscn_did
.un
.b
.domain
)
5356 && (ns_did
.un
.b
.area
== rscn_did
.un
.b
.area
))
5357 goto return_did_out
;
5359 case RSCN_ADDRESS_FORMAT_DOMAIN
:
5360 if (ns_did
.un
.b
.domain
== rscn_did
.un
.b
.domain
)
5361 goto return_did_out
;
5363 case RSCN_ADDRESS_FORMAT_FABRIC
:
5364 goto return_did_out
;
5368 /* Indicate we are done with walking fc_rscn_id_list on this vport */
5369 vport
->fc_rscn_flush
= 0;
5372 /* Indicate we are done with walking fc_rscn_id_list on this vport */
5373 vport
->fc_rscn_flush
= 0;
5378 * lpfc_rscn_recovery_check - Send recovery event to vport nodes matching rscn
5379 * @vport: pointer to a host virtual N_Port data structure.
5381 * This routine sends recovery (NLP_EVT_DEVICE_RECOVERY) event to the
5382 * state machine for a @vport's nodes that are with pending RSCN (Registration
5383 * State Change Notification).
5386 * 0 - Successful (currently alway return 0)
5389 lpfc_rscn_recovery_check(struct lpfc_vport
*vport
)
5391 struct lpfc_nodelist
*ndlp
= NULL
;
5393 /* Move all affected nodes by pending RSCNs to NPR state. */
5394 list_for_each_entry(ndlp
, &vport
->fc_nodes
, nlp_listp
) {
5395 if (!NLP_CHK_NODE_ACT(ndlp
) ||
5396 (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
) ||
5397 !lpfc_rscn_payload_check(vport
, ndlp
->nlp_DID
))
5399 lpfc_disc_state_machine(vport
, ndlp
, NULL
,
5400 NLP_EVT_DEVICE_RECOVERY
);
5401 lpfc_cancel_retry_delay_tmo(vport
, ndlp
);
5407 * lpfc_send_rscn_event - Send an RSCN event to management application
5408 * @vport: pointer to a host virtual N_Port data structure.
5409 * @cmdiocb: pointer to lpfc command iocb data structure.
5411 * lpfc_send_rscn_event sends an RSCN netlink event to management
5415 lpfc_send_rscn_event(struct lpfc_vport
*vport
,
5416 struct lpfc_iocbq
*cmdiocb
)
5418 struct lpfc_dmabuf
*pcmd
;
5419 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
5420 uint32_t *payload_ptr
;
5421 uint32_t payload_len
;
5422 struct lpfc_rscn_event_header
*rscn_event_data
;
5424 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
5425 payload_ptr
= (uint32_t *) pcmd
->virt
;
5426 payload_len
= be32_to_cpu(*payload_ptr
& ~ELS_CMD_MASK
);
5428 rscn_event_data
= kmalloc(sizeof(struct lpfc_rscn_event_header
) +
5429 payload_len
, GFP_KERNEL
);
5430 if (!rscn_event_data
) {
5431 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
5432 "0147 Failed to allocate memory for RSCN event\n");
5435 rscn_event_data
->event_type
= FC_REG_RSCN_EVENT
;
5436 rscn_event_data
->payload_length
= payload_len
;
5437 memcpy(rscn_event_data
->rscn_payload
, payload_ptr
,
5440 fc_host_post_vendor_event(shost
,
5441 fc_get_event_number(),
5442 sizeof(struct lpfc_rscn_event_header
) + payload_len
,
5443 (char *)rscn_event_data
,
5446 kfree(rscn_event_data
);
5450 * lpfc_els_rcv_rscn - Process an unsolicited rscn iocb
5451 * @vport: pointer to a host virtual N_Port data structure.
5452 * @cmdiocb: pointer to lpfc command iocb data structure.
5453 * @ndlp: pointer to a node-list data structure.
5455 * This routine processes an unsolicited RSCN (Registration State Change
5456 * Notification) IOCB. First, the payload of the unsolicited RSCN is walked
5457 * to invoke fc_host_post_event() routine to the FC transport layer. If the
5458 * discover state machine is about to begin discovery, it just accepts the
5459 * RSCN and the discovery process will satisfy the RSCN. If this RSCN only
5460 * contains N_Port IDs for other vports on this HBA, it just accepts the
5461 * RSCN and ignore processing it. If the state machine is in the recovery
5462 * state, the fc_rscn_id_list of this @vport is walked and the
5463 * lpfc_rscn_recovery_check() routine is invoked to send recovery event for
5464 * all nodes that match RSCN payload. Otherwise, the lpfc_els_handle_rscn()
5465 * routine is invoked to handle the RSCN event.
5468 * 0 - Just sent the acc response
5469 * 1 - Sent the acc response and waited for name server completion
5472 lpfc_els_rcv_rscn(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5473 struct lpfc_nodelist
*ndlp
)
5475 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
5476 struct lpfc_hba
*phba
= vport
->phba
;
5477 struct lpfc_dmabuf
*pcmd
;
5478 uint32_t *lp
, *datap
;
5479 uint32_t payload_len
, length
, nportid
, *cmd
;
5481 int rscn_id
= 0, hba_id
= 0;
5484 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
5485 lp
= (uint32_t *) pcmd
->virt
;
5487 payload_len
= be32_to_cpu(*lp
++ & ~ELS_CMD_MASK
);
5488 payload_len
-= sizeof(uint32_t); /* take off word 0 */
5490 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
5491 "0214 RSCN received Data: x%x x%x x%x x%x\n",
5492 vport
->fc_flag
, payload_len
, *lp
,
5493 vport
->fc_rscn_id_cnt
);
5495 /* Send an RSCN event to the management application */
5496 lpfc_send_rscn_event(vport
, cmdiocb
);
5498 for (i
= 0; i
< payload_len
/sizeof(uint32_t); i
++)
5499 fc_host_post_event(shost
, fc_get_event_number(),
5500 FCH_EVT_RSCN
, lp
[i
]);
5502 /* If we are about to begin discovery, just ACC the RSCN.
5503 * Discovery processing will satisfy it.
5505 if (vport
->port_state
<= LPFC_NS_QRY
) {
5506 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
5507 "RCV RSCN ignore: did:x%x/ste:x%x flg:x%x",
5508 ndlp
->nlp_DID
, vport
->port_state
, ndlp
->nlp_flag
);
5510 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
, ndlp
, NULL
);
5514 /* If this RSCN just contains NPortIDs for other vports on this HBA,
5515 * just ACC and ignore it.
5517 if ((phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
5518 !(vport
->cfg_peer_port_login
)) {
5523 nportid
= ((be32_to_cpu(nportid
)) & Mask_DID
);
5524 i
-= sizeof(uint32_t);
5526 if (lpfc_find_vport_by_did(phba
, nportid
))
5529 if (rscn_id
== hba_id
) {
5530 /* ALL NPortIDs in RSCN are on HBA */
5531 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
5533 "Data: x%x x%x x%x x%x\n",
5534 vport
->fc_flag
, payload_len
,
5535 *lp
, vport
->fc_rscn_id_cnt
);
5536 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
5537 "RCV RSCN vport: did:x%x/ste:x%x flg:x%x",
5538 ndlp
->nlp_DID
, vport
->port_state
,
5541 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
,
5547 spin_lock_irq(shost
->host_lock
);
5548 if (vport
->fc_rscn_flush
) {
5549 /* Another thread is walking fc_rscn_id_list on this vport */
5550 vport
->fc_flag
|= FC_RSCN_DISCOVERY
;
5551 spin_unlock_irq(shost
->host_lock
);
5553 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
, ndlp
, NULL
);
5556 /* Indicate we are walking fc_rscn_id_list on this vport */
5557 vport
->fc_rscn_flush
= 1;
5558 spin_unlock_irq(shost
->host_lock
);
5559 /* Get the array count after successfully have the token */
5560 rscn_cnt
= vport
->fc_rscn_id_cnt
;
5561 /* If we are already processing an RSCN, save the received
5562 * RSCN payload buffer, cmdiocb->context2 to process later.
5564 if (vport
->fc_flag
& (FC_RSCN_MODE
| FC_NDISC_ACTIVE
)) {
5565 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
5566 "RCV RSCN defer: did:x%x/ste:x%x flg:x%x",
5567 ndlp
->nlp_DID
, vport
->port_state
, ndlp
->nlp_flag
);
5569 spin_lock_irq(shost
->host_lock
);
5570 vport
->fc_flag
|= FC_RSCN_DEFERRED
;
5571 if ((rscn_cnt
< FC_MAX_HOLD_RSCN
) &&
5572 !(vport
->fc_flag
& FC_RSCN_DISCOVERY
)) {
5573 vport
->fc_flag
|= FC_RSCN_MODE
;
5574 spin_unlock_irq(shost
->host_lock
);
5576 cmd
= vport
->fc_rscn_id_list
[rscn_cnt
-1]->virt
;
5577 length
= be32_to_cpu(*cmd
& ~ELS_CMD_MASK
);
5580 (payload_len
+ length
<= LPFC_BPL_SIZE
)) {
5581 *cmd
&= ELS_CMD_MASK
;
5582 *cmd
|= cpu_to_be32(payload_len
+ length
);
5583 memcpy(((uint8_t *)cmd
) + length
, lp
,
5586 vport
->fc_rscn_id_list
[rscn_cnt
] = pcmd
;
5587 vport
->fc_rscn_id_cnt
++;
5588 /* If we zero, cmdiocb->context2, the calling
5589 * routine will not try to free it.
5591 cmdiocb
->context2
= NULL
;
5594 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
5595 "0235 Deferred RSCN "
5596 "Data: x%x x%x x%x\n",
5597 vport
->fc_rscn_id_cnt
, vport
->fc_flag
,
5600 vport
->fc_flag
|= FC_RSCN_DISCOVERY
;
5601 spin_unlock_irq(shost
->host_lock
);
5602 /* ReDiscovery RSCN */
5603 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
5604 "0234 ReDiscovery RSCN "
5605 "Data: x%x x%x x%x\n",
5606 vport
->fc_rscn_id_cnt
, vport
->fc_flag
,
5609 /* Indicate we are done walking fc_rscn_id_list on this vport */
5610 vport
->fc_rscn_flush
= 0;
5612 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
, ndlp
, NULL
);
5613 /* send RECOVERY event for ALL nodes that match RSCN payload */
5614 lpfc_rscn_recovery_check(vport
);
5615 spin_lock_irq(shost
->host_lock
);
5616 vport
->fc_flag
&= ~FC_RSCN_DEFERRED
;
5617 spin_unlock_irq(shost
->host_lock
);
5620 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
5621 "RCV RSCN: did:x%x/ste:x%x flg:x%x",
5622 ndlp
->nlp_DID
, vport
->port_state
, ndlp
->nlp_flag
);
5624 spin_lock_irq(shost
->host_lock
);
5625 vport
->fc_flag
|= FC_RSCN_MODE
;
5626 spin_unlock_irq(shost
->host_lock
);
5627 vport
->fc_rscn_id_list
[vport
->fc_rscn_id_cnt
++] = pcmd
;
5628 /* Indicate we are done walking fc_rscn_id_list on this vport */
5629 vport
->fc_rscn_flush
= 0;
5631 * If we zero, cmdiocb->context2, the calling routine will
5632 * not try to free it.
5634 cmdiocb
->context2
= NULL
;
5635 lpfc_set_disctmo(vport
);
5637 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
, ndlp
, NULL
);
5638 /* send RECOVERY event for ALL nodes that match RSCN payload */
5639 lpfc_rscn_recovery_check(vport
);
5640 return lpfc_els_handle_rscn(vport
);
5644 * lpfc_els_handle_rscn - Handle rscn for a vport
5645 * @vport: pointer to a host virtual N_Port data structure.
5647 * This routine handles the Registration State Configuration Notification
5648 * (RSCN) for a @vport. If login to NameServer does not exist, a new ndlp shall
5649 * be created and a Port Login (PLOGI) to the NameServer is issued. Otherwise,
5650 * if the ndlp to NameServer exists, a Common Transport (CT) command to the
5651 * NameServer shall be issued. If CT command to the NameServer fails to be
5652 * issued, the lpfc_els_flush_rscn() routine shall be invoked to clean up any
5653 * RSCN activities with the @vport.
5656 * 0 - Cleaned up rscn on the @vport
5657 * 1 - Wait for plogi to name server before proceed
5660 lpfc_els_handle_rscn(struct lpfc_vport
*vport
)
5662 struct lpfc_nodelist
*ndlp
;
5663 struct lpfc_hba
*phba
= vport
->phba
;
5665 /* Ignore RSCN if the port is being torn down. */
5666 if (vport
->load_flag
& FC_UNLOADING
) {
5667 lpfc_els_flush_rscn(vport
);
5671 /* Start timer for RSCN processing */
5672 lpfc_set_disctmo(vport
);
5674 /* RSCN processed */
5675 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
5676 "0215 RSCN processed Data: x%x x%x x%x x%x\n",
5677 vport
->fc_flag
, 0, vport
->fc_rscn_id_cnt
,
5680 /* To process RSCN, first compare RSCN data with NameServer */
5681 vport
->fc_ns_retry
= 0;
5682 vport
->num_disc_nodes
= 0;
5684 ndlp
= lpfc_findnode_did(vport
, NameServer_DID
);
5685 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
)
5686 && ndlp
->nlp_state
== NLP_STE_UNMAPPED_NODE
) {
5687 /* Good ndlp, issue CT Request to NameServer */
5688 if (lpfc_ns_cmd(vport
, SLI_CTNS_GID_FT
, 0, 0) == 0)
5689 /* Wait for NameServer query cmpl before we can
5693 /* If login to NameServer does not exist, issue one */
5694 /* Good status, issue PLOGI to NameServer */
5695 ndlp
= lpfc_findnode_did(vport
, NameServer_DID
);
5696 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
))
5697 /* Wait for NameServer login cmpl before we can
5702 ndlp
= lpfc_enable_node(vport
, ndlp
,
5703 NLP_STE_PLOGI_ISSUE
);
5705 lpfc_els_flush_rscn(vport
);
5708 ndlp
->nlp_prev_state
= NLP_STE_UNUSED_NODE
;
5710 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
5712 lpfc_els_flush_rscn(vport
);
5715 lpfc_nlp_init(vport
, ndlp
, NameServer_DID
);
5716 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
5717 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_PLOGI_ISSUE
);
5719 ndlp
->nlp_type
|= NLP_FABRIC
;
5720 lpfc_issue_els_plogi(vport
, NameServer_DID
, 0);
5721 /* Wait for NameServer login cmpl before we can
5727 lpfc_els_flush_rscn(vport
);
5732 * lpfc_els_rcv_flogi - Process an unsolicited flogi iocb
5733 * @vport: pointer to a host virtual N_Port data structure.
5734 * @cmdiocb: pointer to lpfc command iocb data structure.
5735 * @ndlp: pointer to a node-list data structure.
5737 * This routine processes Fabric Login (FLOGI) IOCB received as an ELS
5738 * unsolicited event. An unsolicited FLOGI can be received in a point-to-
5739 * point topology. As an unsolicited FLOGI should not be received in a loop
5740 * mode, any unsolicited FLOGI received in loop mode shall be ignored. The
5741 * lpfc_check_sparm() routine is invoked to check the parameters in the
5742 * unsolicited FLOGI. If parameters validation failed, the routine
5743 * lpfc_els_rsp_reject() shall be called with reject reason code set to
5744 * LSEXP_SPARM_OPTIONS to reject the FLOGI. Otherwise, the Port WWN in the
5745 * FLOGI shall be compared with the Port WWN of the @vport to determine who
5746 * will initiate PLOGI. The higher lexicographical value party shall has
5747 * higher priority (as the winning port) and will initiate PLOGI and
5748 * communicate Port_IDs (Addresses) for both nodes in PLOGI. The result
5749 * of this will be marked in the @vport fc_flag field with FC_PT2PT_PLOGI
5750 * and then the lpfc_els_rsp_acc() routine is invoked to accept the FLOGI.
5753 * 0 - Successfully processed the unsolicited flogi
5754 * 1 - Failed to process the unsolicited flogi
5757 lpfc_els_rcv_flogi(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5758 struct lpfc_nodelist
*ndlp
)
5760 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
5761 struct lpfc_hba
*phba
= vport
->phba
;
5762 struct lpfc_dmabuf
*pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
5763 uint32_t *lp
= (uint32_t *) pcmd
->virt
;
5764 IOCB_t
*icmd
= &cmdiocb
->iocb
;
5765 struct serv_parm
*sp
;
5769 uint32_t fc_flag
= 0;
5770 uint32_t port_state
= 0;
5773 sp
= (struct serv_parm
*) lp
;
5775 /* FLOGI received */
5777 lpfc_set_disctmo(vport
);
5779 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
5780 /* We should never receive a FLOGI in loop mode, ignore it */
5781 did
= icmd
->un
.elsreq64
.remoteID
;
5783 /* An FLOGI ELS command <elsCmd> was received from DID <did> in
5785 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
5786 "0113 An FLOGI ELS command x%x was "
5787 "received from DID x%x in Loop Mode\n",
5792 (void) lpfc_check_sparm(vport
, ndlp
, sp
, CLASS3
, 1);
5796 * If our portname is greater than the remote portname,
5797 * then we initiate Nport login.
5800 rc
= memcmp(&vport
->fc_portname
, &sp
->portName
,
5801 sizeof(struct lpfc_name
));
5804 if (phba
->sli_rev
< LPFC_SLI_REV4
) {
5805 mbox
= mempool_alloc(phba
->mbox_mem_pool
,
5809 lpfc_linkdown(phba
);
5810 lpfc_init_link(phba
, mbox
,
5812 phba
->cfg_link_speed
);
5813 mbox
->u
.mb
.un
.varInitLnk
.lipsr_AL_PA
= 0;
5814 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
5815 mbox
->vport
= vport
;
5816 rc
= lpfc_sli_issue_mbox(phba
, mbox
,
5818 lpfc_set_loopback_flag(phba
);
5819 if (rc
== MBX_NOT_FINISHED
)
5820 mempool_free(mbox
, phba
->mbox_mem_pool
);
5824 /* abort the flogi coming back to ourselves
5825 * due to external loopback on the port.
5827 lpfc_els_abort_flogi(phba
);
5830 } else if (rc
> 0) { /* greater than */
5831 spin_lock_irq(shost
->host_lock
);
5832 vport
->fc_flag
|= FC_PT2PT_PLOGI
;
5833 spin_unlock_irq(shost
->host_lock
);
5835 /* If we have the high WWPN we can assign our own
5836 * myDID; otherwise, we have to WAIT for a PLOGI
5837 * from the remote NPort to find out what it
5840 vport
->fc_myDID
= PT2PT_LocalID
;
5842 vport
->fc_myDID
= PT2PT_RemoteID
;
5846 * The vport state should go to LPFC_FLOGI only
5847 * AFTER we issue a FLOGI, not receive one.
5849 spin_lock_irq(shost
->host_lock
);
5850 fc_flag
= vport
->fc_flag
;
5851 port_state
= vport
->port_state
;
5852 vport
->fc_flag
|= FC_PT2PT
;
5853 vport
->fc_flag
&= ~(FC_FABRIC
| FC_PUBLIC_LOOP
);
5854 spin_unlock_irq(shost
->host_lock
);
5855 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
5856 "3311 Rcv Flogi PS x%x new PS x%x "
5857 "fc_flag x%x new fc_flag x%x\n",
5858 port_state
, vport
->port_state
,
5859 fc_flag
, vport
->fc_flag
);
5862 * We temporarily set fc_myDID to make it look like we are
5863 * a Fabric. This is done just so we end up with the right
5864 * did / sid on the FLOGI ACC rsp.
5866 did
= vport
->fc_myDID
;
5867 vport
->fc_myDID
= Fabric_DID
;
5869 memcpy(&phba
->fc_fabparam
, sp
, sizeof(struct serv_parm
));
5872 lpfc_els_rsp_acc(vport
, ELS_CMD_FLOGI
, cmdiocb
, ndlp
, NULL
);
5874 /* Now lets put fc_myDID back to what its supposed to be */
5875 vport
->fc_myDID
= did
;
5881 * lpfc_els_rcv_rnid - Process an unsolicited rnid iocb
5882 * @vport: pointer to a host virtual N_Port data structure.
5883 * @cmdiocb: pointer to lpfc command iocb data structure.
5884 * @ndlp: pointer to a node-list data structure.
5886 * This routine processes Request Node Identification Data (RNID) IOCB
5887 * received as an ELS unsolicited event. Only when the RNID specified format
5888 * 0x0 or 0xDF (Topology Discovery Specific Node Identification Data)
5889 * present, this routine will invoke the lpfc_els_rsp_rnid_acc() routine to
5890 * Accept (ACC) the RNID ELS command. All the other RNID formats are
5891 * rejected by invoking the lpfc_els_rsp_reject() routine.
5894 * 0 - Successfully processed rnid iocb (currently always return 0)
5897 lpfc_els_rcv_rnid(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5898 struct lpfc_nodelist
*ndlp
)
5900 struct lpfc_dmabuf
*pcmd
;
5906 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
5907 lp
= (uint32_t *) pcmd
->virt
;
5914 switch (rn
->Format
) {
5916 case RNID_TOPOLOGY_DISC
:
5918 lpfc_els_rsp_rnid_acc(vport
, rn
->Format
, cmdiocb
, ndlp
);
5921 /* Reject this request because format not supported */
5922 stat
.un
.b
.lsRjtRsvd0
= 0;
5923 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
5924 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_CANT_GIVE_DATA
;
5925 stat
.un
.b
.vendorUnique
= 0;
5926 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
,
5933 * lpfc_els_rcv_echo - Process an unsolicited echo iocb
5934 * @vport: pointer to a host virtual N_Port data structure.
5935 * @cmdiocb: pointer to lpfc command iocb data structure.
5936 * @ndlp: pointer to a node-list data structure.
5939 * 0 - Successfully processed echo iocb (currently always return 0)
5942 lpfc_els_rcv_echo(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5943 struct lpfc_nodelist
*ndlp
)
5947 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) cmdiocb
->context2
)->virt
);
5949 /* skip over first word of echo command to find echo data */
5950 pcmd
+= sizeof(uint32_t);
5952 lpfc_els_rsp_echo_acc(vport
, pcmd
, cmdiocb
, ndlp
);
5957 * lpfc_els_rcv_lirr - Process an unsolicited lirr iocb
5958 * @vport: pointer to a host virtual N_Port data structure.
5959 * @cmdiocb: pointer to lpfc command iocb data structure.
5960 * @ndlp: pointer to a node-list data structure.
5962 * This routine processes a Link Incident Report Registration(LIRR) IOCB
5963 * received as an ELS unsolicited event. Currently, this function just invokes
5964 * the lpfc_els_rsp_reject() routine to reject the LIRR IOCB unconditionally.
5967 * 0 - Successfully processed lirr iocb (currently always return 0)
5970 lpfc_els_rcv_lirr(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5971 struct lpfc_nodelist
*ndlp
)
5975 /* For now, unconditionally reject this command */
5976 stat
.un
.b
.lsRjtRsvd0
= 0;
5977 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
5978 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_CANT_GIVE_DATA
;
5979 stat
.un
.b
.vendorUnique
= 0;
5980 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
, NULL
);
5985 * lpfc_els_rcv_rrq - Process an unsolicited rrq iocb
5986 * @vport: pointer to a host virtual N_Port data structure.
5987 * @cmdiocb: pointer to lpfc command iocb data structure.
5988 * @ndlp: pointer to a node-list data structure.
5990 * This routine processes a Reinstate Recovery Qualifier (RRQ) IOCB
5991 * received as an ELS unsolicited event. A request to RRQ shall only
5992 * be accepted if the Originator Nx_Port N_Port_ID or the Responder
5993 * Nx_Port N_Port_ID of the target Exchange is the same as the
5994 * N_Port_ID of the Nx_Port that makes the request. If the RRQ is
5995 * not accepted, an LS_RJT with reason code "Unable to perform
5996 * command request" and reason code explanation "Invalid Originator
5997 * S_ID" shall be returned. For now, we just unconditionally accept
5998 * RRQ from the target.
6001 lpfc_els_rcv_rrq(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
6002 struct lpfc_nodelist
*ndlp
)
6004 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
, ndlp
, NULL
);
6005 if (vport
->phba
->sli_rev
== LPFC_SLI_REV4
)
6006 lpfc_els_clear_rrq(vport
, cmdiocb
, ndlp
);
6010 * lpfc_els_rsp_rls_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd
6011 * @phba: pointer to lpfc hba data structure.
6012 * @pmb: pointer to the driver internal queue element for mailbox command.
6014 * This routine is the completion callback function for the MBX_READ_LNK_STAT
6015 * mailbox command. This callback function is to actually send the Accept
6016 * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It
6017 * collects the link statistics from the completion of the MBX_READ_LNK_STAT
6018 * mailbox command, constructs the RPS response with the link statistics
6019 * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC
6020 * response to the RPS.
6022 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
6023 * will be incremented by 1 for holding the ndlp and the reference to ndlp
6024 * will be stored into the context1 field of the IOCB for the completion
6025 * callback function to the RPS Accept Response ELS IOCB command.
6029 lpfc_els_rsp_rls_acc(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
6033 struct RLS_RSP
*rls_rsp
;
6035 struct lpfc_iocbq
*elsiocb
;
6036 struct lpfc_nodelist
*ndlp
;
6043 ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
6044 rxid
= (uint16_t) ((unsigned long)(pmb
->context1
) & 0xffff);
6045 oxid
= (uint16_t) (((unsigned long)(pmb
->context1
) >> 16) & 0xffff);
6046 pmb
->context1
= NULL
;
6047 pmb
->context2
= NULL
;
6049 if (mb
->mbxStatus
) {
6050 mempool_free(pmb
, phba
->mbox_mem_pool
);
6054 cmdsize
= sizeof(struct RLS_RSP
) + sizeof(uint32_t);
6055 elsiocb
= lpfc_prep_els_iocb(phba
->pport
, 0, cmdsize
,
6056 lpfc_max_els_tries
, ndlp
,
6057 ndlp
->nlp_DID
, ELS_CMD_ACC
);
6059 /* Decrement the ndlp reference count from previous mbox command */
6063 mempool_free(pmb
, phba
->mbox_mem_pool
);
6067 icmd
= &elsiocb
->iocb
;
6068 icmd
->ulpContext
= rxid
;
6069 icmd
->unsli3
.rcvsli3
.ox_id
= oxid
;
6071 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
6072 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
6073 pcmd
+= sizeof(uint32_t); /* Skip past command */
6074 rls_rsp
= (struct RLS_RSP
*)pcmd
;
6076 rls_rsp
->linkFailureCnt
= cpu_to_be32(mb
->un
.varRdLnk
.linkFailureCnt
);
6077 rls_rsp
->lossSyncCnt
= cpu_to_be32(mb
->un
.varRdLnk
.lossSyncCnt
);
6078 rls_rsp
->lossSignalCnt
= cpu_to_be32(mb
->un
.varRdLnk
.lossSignalCnt
);
6079 rls_rsp
->primSeqErrCnt
= cpu_to_be32(mb
->un
.varRdLnk
.primSeqErrCnt
);
6080 rls_rsp
->invalidXmitWord
= cpu_to_be32(mb
->un
.varRdLnk
.invalidXmitWord
);
6081 rls_rsp
->crcCnt
= cpu_to_be32(mb
->un
.varRdLnk
.crcCnt
);
6082 mempool_free(pmb
, phba
->mbox_mem_pool
);
6083 /* Xmit ELS RLS ACC response tag <ulpIoTag> */
6084 lpfc_printf_vlog(ndlp
->vport
, KERN_INFO
, LOG_ELS
,
6085 "2874 Xmit ELS RLS ACC response tag x%x xri x%x, "
6086 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
6087 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
6088 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
6090 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
6091 phba
->fc_stat
.elsXmitACC
++;
6092 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) == IOCB_ERROR
)
6093 lpfc_els_free_iocb(phba
, elsiocb
);
6097 * lpfc_els_rsp_rps_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd
6098 * @phba: pointer to lpfc hba data structure.
6099 * @pmb: pointer to the driver internal queue element for mailbox command.
6101 * This routine is the completion callback function for the MBX_READ_LNK_STAT
6102 * mailbox command. This callback function is to actually send the Accept
6103 * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It
6104 * collects the link statistics from the completion of the MBX_READ_LNK_STAT
6105 * mailbox command, constructs the RPS response with the link statistics
6106 * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC
6107 * response to the RPS.
6109 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
6110 * will be incremented by 1 for holding the ndlp and the reference to ndlp
6111 * will be stored into the context1 field of the IOCB for the completion
6112 * callback function to the RPS Accept Response ELS IOCB command.
6116 lpfc_els_rsp_rps_acc(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
6122 struct lpfc_iocbq
*elsiocb
;
6123 struct lpfc_nodelist
*ndlp
;
6131 ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
6132 rxid
= (uint16_t) ((unsigned long)(pmb
->context1
) & 0xffff);
6133 oxid
= (uint16_t) (((unsigned long)(pmb
->context1
) >> 16) & 0xffff);
6134 pmb
->context1
= NULL
;
6135 pmb
->context2
= NULL
;
6137 if (mb
->mbxStatus
) {
6138 mempool_free(pmb
, phba
->mbox_mem_pool
);
6142 cmdsize
= sizeof(RPS_RSP
) + sizeof(uint32_t);
6143 mempool_free(pmb
, phba
->mbox_mem_pool
);
6144 elsiocb
= lpfc_prep_els_iocb(phba
->pport
, 0, cmdsize
,
6145 lpfc_max_els_tries
, ndlp
,
6146 ndlp
->nlp_DID
, ELS_CMD_ACC
);
6148 /* Decrement the ndlp reference count from previous mbox command */
6154 icmd
= &elsiocb
->iocb
;
6155 icmd
->ulpContext
= rxid
;
6156 icmd
->unsli3
.rcvsli3
.ox_id
= oxid
;
6158 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
6159 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
6160 pcmd
+= sizeof(uint32_t); /* Skip past command */
6161 rps_rsp
= (RPS_RSP
*)pcmd
;
6163 if (phba
->fc_topology
!= LPFC_TOPOLOGY_LOOP
)
6167 if (phba
->pport
->fc_flag
& FC_FABRIC
)
6171 rps_rsp
->portStatus
= cpu_to_be16(status
);
6172 rps_rsp
->linkFailureCnt
= cpu_to_be32(mb
->un
.varRdLnk
.linkFailureCnt
);
6173 rps_rsp
->lossSyncCnt
= cpu_to_be32(mb
->un
.varRdLnk
.lossSyncCnt
);
6174 rps_rsp
->lossSignalCnt
= cpu_to_be32(mb
->un
.varRdLnk
.lossSignalCnt
);
6175 rps_rsp
->primSeqErrCnt
= cpu_to_be32(mb
->un
.varRdLnk
.primSeqErrCnt
);
6176 rps_rsp
->invalidXmitWord
= cpu_to_be32(mb
->un
.varRdLnk
.invalidXmitWord
);
6177 rps_rsp
->crcCnt
= cpu_to_be32(mb
->un
.varRdLnk
.crcCnt
);
6178 /* Xmit ELS RPS ACC response tag <ulpIoTag> */
6179 lpfc_printf_vlog(ndlp
->vport
, KERN_INFO
, LOG_ELS
,
6180 "0118 Xmit ELS RPS ACC response tag x%x xri x%x, "
6181 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
6182 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
6183 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
6185 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
6186 phba
->fc_stat
.elsXmitACC
++;
6187 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) == IOCB_ERROR
)
6188 lpfc_els_free_iocb(phba
, elsiocb
);
6193 * lpfc_els_rcv_rls - Process an unsolicited rls iocb
6194 * @vport: pointer to a host virtual N_Port data structure.
6195 * @cmdiocb: pointer to lpfc command iocb data structure.
6196 * @ndlp: pointer to a node-list data structure.
6198 * This routine processes Read Port Status (RPL) IOCB received as an
6199 * ELS unsolicited event. It first checks the remote port state. If the
6200 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
6201 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject
6202 * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command
6203 * for reading the HBA link statistics. It is for the callback function,
6204 * lpfc_els_rsp_rls_acc(), set to the MBX_READ_LNK_STAT mailbox command
6205 * to actually sending out RPL Accept (ACC) response.
6208 * 0 - Successfully processed rls iocb (currently always return 0)
6211 lpfc_els_rcv_rls(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
6212 struct lpfc_nodelist
*ndlp
)
6214 struct lpfc_hba
*phba
= vport
->phba
;
6218 if ((ndlp
->nlp_state
!= NLP_STE_UNMAPPED_NODE
) &&
6219 (ndlp
->nlp_state
!= NLP_STE_MAPPED_NODE
))
6220 /* reject the unsolicited RPS request and done with it */
6223 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_ATOMIC
);
6225 lpfc_read_lnk_stat(phba
, mbox
);
6226 mbox
->context1
= (void *)((unsigned long)
6227 ((cmdiocb
->iocb
.unsli3
.rcvsli3
.ox_id
<< 16) |
6228 cmdiocb
->iocb
.ulpContext
)); /* rx_id */
6229 mbox
->context2
= lpfc_nlp_get(ndlp
);
6230 mbox
->vport
= vport
;
6231 mbox
->mbox_cmpl
= lpfc_els_rsp_rls_acc
;
6232 if (lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
)
6233 != MBX_NOT_FINISHED
)
6234 /* Mbox completion will send ELS Response */
6236 /* Decrement reference count used for the failed mbox
6240 mempool_free(mbox
, phba
->mbox_mem_pool
);
6243 /* issue rejection response */
6244 stat
.un
.b
.lsRjtRsvd0
= 0;
6245 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
6246 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_CANT_GIVE_DATA
;
6247 stat
.un
.b
.vendorUnique
= 0;
6248 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
, NULL
);
6253 * lpfc_els_rcv_rtv - Process an unsolicited rtv iocb
6254 * @vport: pointer to a host virtual N_Port data structure.
6255 * @cmdiocb: pointer to lpfc command iocb data structure.
6256 * @ndlp: pointer to a node-list data structure.
6258 * This routine processes Read Timout Value (RTV) IOCB received as an
6259 * ELS unsolicited event. It first checks the remote port state. If the
6260 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
6261 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject
6262 * response. Otherwise, it sends the Accept(ACC) response to a Read Timeout
6263 * Value (RTV) unsolicited IOCB event.
6265 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
6266 * will be incremented by 1 for holding the ndlp and the reference to ndlp
6267 * will be stored into the context1 field of the IOCB for the completion
6268 * callback function to the RPS Accept Response ELS IOCB command.
6271 * 0 - Successfully processed rtv iocb (currently always return 0)
6274 lpfc_els_rcv_rtv(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
6275 struct lpfc_nodelist
*ndlp
)
6277 struct lpfc_hba
*phba
= vport
->phba
;
6279 struct RTV_RSP
*rtv_rsp
;
6281 struct lpfc_iocbq
*elsiocb
;
6285 if ((ndlp
->nlp_state
!= NLP_STE_UNMAPPED_NODE
) &&
6286 (ndlp
->nlp_state
!= NLP_STE_MAPPED_NODE
))
6287 /* reject the unsolicited RPS request and done with it */
6290 cmdsize
= sizeof(struct RTV_RSP
) + sizeof(uint32_t);
6291 elsiocb
= lpfc_prep_els_iocb(phba
->pport
, 0, cmdsize
,
6292 lpfc_max_els_tries
, ndlp
,
6293 ndlp
->nlp_DID
, ELS_CMD_ACC
);
6298 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
6299 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
6300 pcmd
+= sizeof(uint32_t); /* Skip past command */
6302 /* use the command's xri in the response */
6303 elsiocb
->iocb
.ulpContext
= cmdiocb
->iocb
.ulpContext
; /* Xri / rx_id */
6304 elsiocb
->iocb
.unsli3
.rcvsli3
.ox_id
= cmdiocb
->iocb
.unsli3
.rcvsli3
.ox_id
;
6306 rtv_rsp
= (struct RTV_RSP
*)pcmd
;
6308 /* populate RTV payload */
6309 rtv_rsp
->ratov
= cpu_to_be32(phba
->fc_ratov
* 1000); /* report msecs */
6310 rtv_rsp
->edtov
= cpu_to_be32(phba
->fc_edtov
);
6311 bf_set(qtov_edtovres
, rtv_rsp
, phba
->fc_edtovResol
? 1 : 0);
6312 bf_set(qtov_rttov
, rtv_rsp
, 0); /* Field is for FC ONLY */
6313 rtv_rsp
->qtov
= cpu_to_be32(rtv_rsp
->qtov
);
6315 /* Xmit ELS RLS ACC response tag <ulpIoTag> */
6316 lpfc_printf_vlog(ndlp
->vport
, KERN_INFO
, LOG_ELS
,
6317 "2875 Xmit ELS RTV ACC response tag x%x xri x%x, "
6318 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x, "
6319 "Data: x%x x%x x%x\n",
6320 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
6321 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
6323 rtv_rsp
->ratov
, rtv_rsp
->edtov
, rtv_rsp
->qtov
);
6324 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
6325 phba
->fc_stat
.elsXmitACC
++;
6326 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) == IOCB_ERROR
)
6327 lpfc_els_free_iocb(phba
, elsiocb
);
6331 /* issue rejection response */
6332 stat
.un
.b
.lsRjtRsvd0
= 0;
6333 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
6334 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_CANT_GIVE_DATA
;
6335 stat
.un
.b
.vendorUnique
= 0;
6336 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
, NULL
);
6340 /* lpfc_els_rcv_rps - Process an unsolicited rps iocb
6341 * @vport: pointer to a host virtual N_Port data structure.
6342 * @cmdiocb: pointer to lpfc command iocb data structure.
6343 * @ndlp: pointer to a node-list data structure.
6345 * This routine processes Read Port Status (RPS) IOCB received as an
6346 * ELS unsolicited event. It first checks the remote port state. If the
6347 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
6348 * state, it invokes the lpfc_els_rsp_reject() routine to send the reject
6349 * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command
6350 * for reading the HBA link statistics. It is for the callback function,
6351 * lpfc_els_rsp_rps_acc(), set to the MBX_READ_LNK_STAT mailbox command
6352 * to actually sending out RPS Accept (ACC) response.
6355 * 0 - Successfully processed rps iocb (currently always return 0)
6358 lpfc_els_rcv_rps(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
6359 struct lpfc_nodelist
*ndlp
)
6361 struct lpfc_hba
*phba
= vport
->phba
;
6365 struct lpfc_dmabuf
*pcmd
;
6369 if ((ndlp
->nlp_state
!= NLP_STE_UNMAPPED_NODE
) &&
6370 (ndlp
->nlp_state
!= NLP_STE_MAPPED_NODE
))
6371 /* reject the unsolicited RPS request and done with it */
6374 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
6375 lp
= (uint32_t *) pcmd
->virt
;
6376 flag
= (be32_to_cpu(*lp
++) & 0xf);
6380 ((flag
== 1) && (be32_to_cpu(rps
->un
.portNum
) == 0)) ||
6381 ((flag
== 2) && (memcmp(&rps
->un
.portName
, &vport
->fc_portname
,
6382 sizeof(struct lpfc_name
)) == 0))) {
6384 printk("Fix me....\n");
6386 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_ATOMIC
);
6388 lpfc_read_lnk_stat(phba
, mbox
);
6389 mbox
->context1
= (void *)((unsigned long)
6390 ((cmdiocb
->iocb
.unsli3
.rcvsli3
.ox_id
<< 16) |
6391 cmdiocb
->iocb
.ulpContext
)); /* rx_id */
6392 mbox
->context2
= lpfc_nlp_get(ndlp
);
6393 mbox
->vport
= vport
;
6394 mbox
->mbox_cmpl
= lpfc_els_rsp_rps_acc
;
6395 if (lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
)
6396 != MBX_NOT_FINISHED
)
6397 /* Mbox completion will send ELS Response */
6399 /* Decrement reference count used for the failed mbox
6403 mempool_free(mbox
, phba
->mbox_mem_pool
);
6408 /* issue rejection response */
6409 stat
.un
.b
.lsRjtRsvd0
= 0;
6410 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
6411 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_CANT_GIVE_DATA
;
6412 stat
.un
.b
.vendorUnique
= 0;
6413 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
, NULL
);
6417 /* lpfc_issue_els_rrq - Process an unsolicited rps iocb
6418 * @vport: pointer to a host virtual N_Port data structure.
6419 * @ndlp: pointer to a node-list data structure.
6420 * @did: DID of the target.
6421 * @rrq: Pointer to the rrq struct.
6423 * Build a ELS RRQ command and send it to the target. If the issue_iocb is
6424 * Successful the the completion handler will clear the RRQ.
6427 * 0 - Successfully sent rrq els iocb.
6428 * 1 - Failed to send rrq els iocb.
6431 lpfc_issue_els_rrq(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
6432 uint32_t did
, struct lpfc_node_rrq
*rrq
)
6434 struct lpfc_hba
*phba
= vport
->phba
;
6435 struct RRQ
*els_rrq
;
6436 struct lpfc_iocbq
*elsiocb
;
6442 if (ndlp
!= rrq
->ndlp
)
6444 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
))
6447 /* If ndlp is not NULL, we will bump the reference count on it */
6448 cmdsize
= (sizeof(uint32_t) + sizeof(struct RRQ
));
6449 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, 0, ndlp
, did
,
6454 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
6456 /* For RRQ request, remainder of payload is Exchange IDs */
6457 *((uint32_t *) (pcmd
)) = ELS_CMD_RRQ
;
6458 pcmd
+= sizeof(uint32_t);
6459 els_rrq
= (struct RRQ
*) pcmd
;
6461 bf_set(rrq_oxid
, els_rrq
, phba
->sli4_hba
.xri_ids
[rrq
->xritag
]);
6462 bf_set(rrq_rxid
, els_rrq
, rrq
->rxid
);
6463 bf_set(rrq_did
, els_rrq
, vport
->fc_myDID
);
6464 els_rrq
->rrq
= cpu_to_be32(els_rrq
->rrq
);
6465 els_rrq
->rrq_exchg
= cpu_to_be32(els_rrq
->rrq_exchg
);
6468 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
6469 "Issue RRQ: did:x%x",
6470 did
, rrq
->xritag
, rrq
->rxid
);
6471 elsiocb
->context_un
.rrq
= rrq
;
6472 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rrq
;
6473 ret
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
6475 if (ret
== IOCB_ERROR
) {
6476 lpfc_els_free_iocb(phba
, elsiocb
);
6483 * lpfc_send_rrq - Sends ELS RRQ if needed.
6484 * @phba: pointer to lpfc hba data structure.
6485 * @rrq: pointer to the active rrq.
6487 * This routine will call the lpfc_issue_els_rrq if the rrq is
6488 * still active for the xri. If this function returns a failure then
6489 * the caller needs to clean up the RRQ by calling lpfc_clr_active_rrq.
6491 * Returns 0 Success.
6495 lpfc_send_rrq(struct lpfc_hba
*phba
, struct lpfc_node_rrq
*rrq
)
6497 struct lpfc_nodelist
*ndlp
= lpfc_findnode_did(rrq
->vport
,
6499 if (lpfc_test_rrq_active(phba
, ndlp
, rrq
->xritag
))
6500 return lpfc_issue_els_rrq(rrq
->vport
, ndlp
,
6507 * lpfc_els_rsp_rpl_acc - Issue an accept rpl els command
6508 * @vport: pointer to a host virtual N_Port data structure.
6509 * @cmdsize: size of the ELS command.
6510 * @oldiocb: pointer to the original lpfc command iocb data structure.
6511 * @ndlp: pointer to a node-list data structure.
6513 * This routine issuees an Accept (ACC) Read Port List (RPL) ELS command.
6514 * It is to be called by the lpfc_els_rcv_rpl() routine to accept the RPL.
6516 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
6517 * will be incremented by 1 for holding the ndlp and the reference to ndlp
6518 * will be stored into the context1 field of the IOCB for the completion
6519 * callback function to the RPL Accept Response ELS command.
6522 * 0 - Successfully issued ACC RPL ELS command
6523 * 1 - Failed to issue ACC RPL ELS command
6526 lpfc_els_rsp_rpl_acc(struct lpfc_vport
*vport
, uint16_t cmdsize
,
6527 struct lpfc_iocbq
*oldiocb
, struct lpfc_nodelist
*ndlp
)
6529 struct lpfc_hba
*phba
= vport
->phba
;
6530 IOCB_t
*icmd
, *oldcmd
;
6532 struct lpfc_iocbq
*elsiocb
;
6535 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
, ndlp
,
6536 ndlp
->nlp_DID
, ELS_CMD_ACC
);
6541 icmd
= &elsiocb
->iocb
;
6542 oldcmd
= &oldiocb
->iocb
;
6543 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
6544 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
6546 pcmd
= (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
6547 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
6548 pcmd
+= sizeof(uint16_t);
6549 *((uint16_t *)(pcmd
)) = be16_to_cpu(cmdsize
);
6550 pcmd
+= sizeof(uint16_t);
6552 /* Setup the RPL ACC payload */
6553 rpl_rsp
.listLen
= be32_to_cpu(1);
6555 rpl_rsp
.port_num_blk
.portNum
= 0;
6556 rpl_rsp
.port_num_blk
.portID
= be32_to_cpu(vport
->fc_myDID
);
6557 memcpy(&rpl_rsp
.port_num_blk
.portName
, &vport
->fc_portname
,
6558 sizeof(struct lpfc_name
));
6559 memcpy(pcmd
, &rpl_rsp
, cmdsize
- sizeof(uint32_t));
6560 /* Xmit ELS RPL ACC response tag <ulpIoTag> */
6561 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
6562 "0120 Xmit ELS RPL ACC response tag x%x "
6563 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
6565 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
6566 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
6568 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
6569 phba
->fc_stat
.elsXmitACC
++;
6570 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) ==
6572 lpfc_els_free_iocb(phba
, elsiocb
);
6579 * lpfc_els_rcv_rpl - Process an unsolicited rpl iocb
6580 * @vport: pointer to a host virtual N_Port data structure.
6581 * @cmdiocb: pointer to lpfc command iocb data structure.
6582 * @ndlp: pointer to a node-list data structure.
6584 * This routine processes Read Port List (RPL) IOCB received as an ELS
6585 * unsolicited event. It first checks the remote port state. If the remote
6586 * port is not in NLP_STE_UNMAPPED_NODE and NLP_STE_MAPPED_NODE states, it
6587 * invokes the lpfc_els_rsp_reject() routine to send reject response.
6588 * Otherwise, this routine then invokes the lpfc_els_rsp_rpl_acc() routine
6589 * to accept the RPL.
6592 * 0 - Successfully processed rpl iocb (currently always return 0)
6595 lpfc_els_rcv_rpl(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
6596 struct lpfc_nodelist
*ndlp
)
6598 struct lpfc_dmabuf
*pcmd
;
6605 if ((ndlp
->nlp_state
!= NLP_STE_UNMAPPED_NODE
) &&
6606 (ndlp
->nlp_state
!= NLP_STE_MAPPED_NODE
)) {
6607 /* issue rejection response */
6608 stat
.un
.b
.lsRjtRsvd0
= 0;
6609 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
6610 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_CANT_GIVE_DATA
;
6611 stat
.un
.b
.vendorUnique
= 0;
6612 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
,
6614 /* rejected the unsolicited RPL request and done with it */
6618 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
6619 lp
= (uint32_t *) pcmd
->virt
;
6620 rpl
= (RPL
*) (lp
+ 1);
6621 maxsize
= be32_to_cpu(rpl
->maxsize
);
6623 /* We support only one port */
6624 if ((rpl
->index
== 0) &&
6626 ((maxsize
* sizeof(uint32_t)) >= sizeof(RPL_RSP
)))) {
6627 cmdsize
= sizeof(uint32_t) + sizeof(RPL_RSP
);
6629 cmdsize
= sizeof(uint32_t) + maxsize
* sizeof(uint32_t);
6631 lpfc_els_rsp_rpl_acc(vport
, cmdsize
, cmdiocb
, ndlp
);
6637 * lpfc_els_rcv_farp - Process an unsolicited farp request els command
6638 * @vport: pointer to a virtual N_Port data structure.
6639 * @cmdiocb: pointer to lpfc command iocb data structure.
6640 * @ndlp: pointer to a node-list data structure.
6642 * This routine processes Fibre Channel Address Resolution Protocol
6643 * (FARP) Request IOCB received as an ELS unsolicited event. Currently,
6644 * the lpfc driver only supports matching on WWPN or WWNN for FARP. As such,
6645 * FARP_MATCH_PORT flag and FARP_MATCH_NODE flag are checked against the
6646 * Match Flag in the FARP request IOCB: if FARP_MATCH_PORT flag is set, the
6647 * remote PortName is compared against the FC PortName stored in the @vport
6648 * data structure; if FARP_MATCH_NODE flag is set, the remote NodeName is
6649 * compared against the FC NodeName stored in the @vport data structure.
6650 * If any of these matches and the FARP_REQUEST_FARPR flag is set in the
6651 * FARP request IOCB Response Flag, the lpfc_issue_els_farpr() routine is
6652 * invoked to send out FARP Response to the remote node. Before sending the
6653 * FARP Response, however, the FARP_REQUEST_PLOGI flag is check in the FARP
6654 * request IOCB Response Flag and, if it is set, the lpfc_issue_els_plogi()
6655 * routine is invoked to log into the remote port first.
6658 * 0 - Either the FARP Match Mode not supported or successfully processed
6661 lpfc_els_rcv_farp(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
6662 struct lpfc_nodelist
*ndlp
)
6664 struct lpfc_dmabuf
*pcmd
;
6668 uint32_t cmd
, cnt
, did
;
6670 icmd
= &cmdiocb
->iocb
;
6671 did
= icmd
->un
.elsreq64
.remoteID
;
6672 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
6673 lp
= (uint32_t *) pcmd
->virt
;
6677 /* FARP-REQ received from DID <did> */
6678 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
6679 "0601 FARP-REQ received from DID x%x\n", did
);
6680 /* We will only support match on WWPN or WWNN */
6681 if (fp
->Mflags
& ~(FARP_MATCH_NODE
| FARP_MATCH_PORT
)) {
6686 /* If this FARP command is searching for my portname */
6687 if (fp
->Mflags
& FARP_MATCH_PORT
) {
6688 if (memcmp(&fp
->RportName
, &vport
->fc_portname
,
6689 sizeof(struct lpfc_name
)) == 0)
6693 /* If this FARP command is searching for my nodename */
6694 if (fp
->Mflags
& FARP_MATCH_NODE
) {
6695 if (memcmp(&fp
->RnodeName
, &vport
->fc_nodename
,
6696 sizeof(struct lpfc_name
)) == 0)
6701 if ((ndlp
->nlp_state
== NLP_STE_UNMAPPED_NODE
) ||
6702 (ndlp
->nlp_state
== NLP_STE_MAPPED_NODE
)) {
6703 /* Log back into the node before sending the FARP. */
6704 if (fp
->Rflags
& FARP_REQUEST_PLOGI
) {
6705 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
6706 lpfc_nlp_set_state(vport
, ndlp
,
6707 NLP_STE_PLOGI_ISSUE
);
6708 lpfc_issue_els_plogi(vport
, ndlp
->nlp_DID
, 0);
6711 /* Send a FARP response to that node */
6712 if (fp
->Rflags
& FARP_REQUEST_FARPR
)
6713 lpfc_issue_els_farpr(vport
, did
, 0);
6720 * lpfc_els_rcv_farpr - Process an unsolicited farp response iocb
6721 * @vport: pointer to a host virtual N_Port data structure.
6722 * @cmdiocb: pointer to lpfc command iocb data structure.
6723 * @ndlp: pointer to a node-list data structure.
6725 * This routine processes Fibre Channel Address Resolution Protocol
6726 * Response (FARPR) IOCB received as an ELS unsolicited event. It simply
6727 * invokes the lpfc_els_rsp_acc() routine to the remote node to accept
6728 * the FARP response request.
6731 * 0 - Successfully processed FARPR IOCB (currently always return 0)
6734 lpfc_els_rcv_farpr(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
6735 struct lpfc_nodelist
*ndlp
)
6737 struct lpfc_dmabuf
*pcmd
;
6742 icmd
= &cmdiocb
->iocb
;
6743 did
= icmd
->un
.elsreq64
.remoteID
;
6744 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
6745 lp
= (uint32_t *) pcmd
->virt
;
6748 /* FARP-RSP received from DID <did> */
6749 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
6750 "0600 FARP-RSP received from DID x%x\n", did
);
6751 /* ACCEPT the Farp resp request */
6752 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
, ndlp
, NULL
);
6758 * lpfc_els_rcv_fan - Process an unsolicited fan iocb command
6759 * @vport: pointer to a host virtual N_Port data structure.
6760 * @cmdiocb: pointer to lpfc command iocb data structure.
6761 * @fan_ndlp: pointer to a node-list data structure.
6763 * This routine processes a Fabric Address Notification (FAN) IOCB
6764 * command received as an ELS unsolicited event. The FAN ELS command will
6765 * only be processed on a physical port (i.e., the @vport represents the
6766 * physical port). The fabric NodeName and PortName from the FAN IOCB are
6767 * compared against those in the phba data structure. If any of those is
6768 * different, the lpfc_initial_flogi() routine is invoked to initialize
6769 * Fabric Login (FLOGI) to the fabric to start the discover over. Otherwise,
6770 * if both of those are identical, the lpfc_issue_fabric_reglogin() routine
6771 * is invoked to register login to the fabric.
6774 * 0 - Successfully processed fan iocb (currently always return 0).
6777 lpfc_els_rcv_fan(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
6778 struct lpfc_nodelist
*fan_ndlp
)
6780 struct lpfc_hba
*phba
= vport
->phba
;
6784 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
, "0265 FAN received\n");
6785 lp
= (uint32_t *)((struct lpfc_dmabuf
*)cmdiocb
->context2
)->virt
;
6787 /* FAN received; Fan does not have a reply sequence */
6788 if ((vport
== phba
->pport
) &&
6789 (vport
->port_state
== LPFC_LOCAL_CFG_LINK
)) {
6790 if ((memcmp(&phba
->fc_fabparam
.nodeName
, &fp
->FnodeName
,
6791 sizeof(struct lpfc_name
))) ||
6792 (memcmp(&phba
->fc_fabparam
.portName
, &fp
->FportName
,
6793 sizeof(struct lpfc_name
)))) {
6794 /* This port has switched fabrics. FLOGI is required */
6795 lpfc_issue_init_vfi(vport
);
6797 /* FAN verified - skip FLOGI */
6798 vport
->fc_myDID
= vport
->fc_prevDID
;
6799 if (phba
->sli_rev
< LPFC_SLI_REV4
)
6800 lpfc_issue_fabric_reglogin(vport
);
6802 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
6803 "3138 Need register VFI: (x%x/%x)\n",
6804 vport
->fc_prevDID
, vport
->fc_myDID
);
6805 lpfc_issue_reg_vfi(vport
);
6813 * lpfc_els_timeout - Handler funciton to the els timer
6814 * @ptr: holder for the timer function associated data.
6816 * This routine is invoked by the ELS timer after timeout. It posts the ELS
6817 * timer timeout event by setting the WORKER_ELS_TMO bit to the work port
6818 * event bitmap and then invokes the lpfc_worker_wake_up() routine to wake
6819 * up the worker thread. It is for the worker thread to invoke the routine
6820 * lpfc_els_timeout_handler() to work on the posted event WORKER_ELS_TMO.
6823 lpfc_els_timeout(unsigned long ptr
)
6825 struct lpfc_vport
*vport
= (struct lpfc_vport
*) ptr
;
6826 struct lpfc_hba
*phba
= vport
->phba
;
6827 uint32_t tmo_posted
;
6828 unsigned long iflag
;
6830 spin_lock_irqsave(&vport
->work_port_lock
, iflag
);
6831 tmo_posted
= vport
->work_port_events
& WORKER_ELS_TMO
;
6832 if ((!tmo_posted
) && (!(vport
->load_flag
& FC_UNLOADING
)))
6833 vport
->work_port_events
|= WORKER_ELS_TMO
;
6834 spin_unlock_irqrestore(&vport
->work_port_lock
, iflag
);
6836 if ((!tmo_posted
) && (!(vport
->load_flag
& FC_UNLOADING
)))
6837 lpfc_worker_wake_up(phba
);
6843 * lpfc_els_timeout_handler - Process an els timeout event
6844 * @vport: pointer to a virtual N_Port data structure.
6846 * This routine is the actual handler function that processes an ELS timeout
6847 * event. It walks the ELS ring to get and abort all the IOCBs (except the
6848 * ABORT/CLOSE/FARP/FARPR/FDISC), which are associated with the @vport by
6849 * invoking the lpfc_sli_issue_abort_iotag() routine.
6852 lpfc_els_timeout_handler(struct lpfc_vport
*vport
)
6854 struct lpfc_hba
*phba
= vport
->phba
;
6855 struct lpfc_sli_ring
*pring
;
6856 struct lpfc_iocbq
*tmp_iocb
, *piocb
;
6858 struct lpfc_dmabuf
*pcmd
;
6859 uint32_t els_command
= 0;
6861 uint32_t remote_ID
= 0xffffffff;
6862 LIST_HEAD(abort_list
);
6865 timeout
= (uint32_t)(phba
->fc_ratov
<< 1);
6867 pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
6868 if ((phba
->pport
->load_flag
& FC_UNLOADING
))
6870 spin_lock_irq(&phba
->hbalock
);
6871 if (phba
->sli_rev
== LPFC_SLI_REV4
)
6872 spin_lock(&pring
->ring_lock
);
6874 if ((phba
->pport
->load_flag
& FC_UNLOADING
)) {
6875 if (phba
->sli_rev
== LPFC_SLI_REV4
)
6876 spin_unlock(&pring
->ring_lock
);
6877 spin_unlock_irq(&phba
->hbalock
);
6881 list_for_each_entry_safe(piocb
, tmp_iocb
, &pring
->txcmplq
, list
) {
6884 if ((piocb
->iocb_flag
& LPFC_IO_LIBDFC
) != 0 ||
6885 piocb
->iocb
.ulpCommand
== CMD_ABORT_XRI_CN
||
6886 piocb
->iocb
.ulpCommand
== CMD_CLOSE_XRI_CN
)
6889 if (piocb
->vport
!= vport
)
6892 pcmd
= (struct lpfc_dmabuf
*) piocb
->context2
;
6894 els_command
= *(uint32_t *) (pcmd
->virt
);
6896 if (els_command
== ELS_CMD_FARP
||
6897 els_command
== ELS_CMD_FARPR
||
6898 els_command
== ELS_CMD_FDISC
)
6901 if (piocb
->drvrTimeout
> 0) {
6902 if (piocb
->drvrTimeout
>= timeout
)
6903 piocb
->drvrTimeout
-= timeout
;
6905 piocb
->drvrTimeout
= 0;
6909 remote_ID
= 0xffffffff;
6910 if (cmd
->ulpCommand
!= CMD_GEN_REQUEST64_CR
)
6911 remote_ID
= cmd
->un
.elsreq64
.remoteID
;
6913 struct lpfc_nodelist
*ndlp
;
6914 ndlp
= __lpfc_findnode_rpi(vport
, cmd
->ulpContext
);
6915 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
))
6916 remote_ID
= ndlp
->nlp_DID
;
6918 list_add_tail(&piocb
->dlist
, &abort_list
);
6920 if (phba
->sli_rev
== LPFC_SLI_REV4
)
6921 spin_unlock(&pring
->ring_lock
);
6922 spin_unlock_irq(&phba
->hbalock
);
6924 list_for_each_entry_safe(piocb
, tmp_iocb
, &abort_list
, dlist
) {
6926 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
6927 "0127 ELS timeout Data: x%x x%x x%x "
6928 "x%x\n", els_command
,
6929 remote_ID
, cmd
->ulpCommand
, cmd
->ulpIoTag
);
6930 spin_lock_irq(&phba
->hbalock
);
6931 list_del_init(&piocb
->dlist
);
6932 lpfc_sli_issue_abort_iotag(phba
, pring
, piocb
);
6933 spin_unlock_irq(&phba
->hbalock
);
6936 if (!list_empty(&phba
->sli
.ring
[LPFC_ELS_RING
].txcmplq
))
6937 if (!(phba
->pport
->load_flag
& FC_UNLOADING
))
6938 mod_timer(&vport
->els_tmofunc
,
6939 jiffies
+ msecs_to_jiffies(1000 * timeout
));
6943 * lpfc_els_flush_cmd - Clean up the outstanding els commands to a vport
6944 * @vport: pointer to a host virtual N_Port data structure.
6946 * This routine is used to clean up all the outstanding ELS commands on a
6947 * @vport. It first aborts the @vport by invoking lpfc_fabric_abort_vport()
6948 * routine. After that, it walks the ELS transmit queue to remove all the
6949 * IOCBs with the @vport other than the QUE_RING and ABORT/CLOSE IOCBs. For
6950 * the IOCBs with a non-NULL completion callback function, the callback
6951 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and
6952 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs with a NULL completion
6953 * callback function, the IOCB will simply be released. Finally, it walks
6954 * the ELS transmit completion queue to issue an abort IOCB to any transmit
6955 * completion queue IOCB that is associated with the @vport and is not
6956 * an IOCB from libdfc (i.e., the management plane IOCBs that are not
6957 * part of the discovery state machine) out to HBA by invoking the
6958 * lpfc_sli_issue_abort_iotag() routine. Note that this function issues the
6959 * abort IOCB to any transmit completion queueed IOCB, it does not guarantee
6960 * the IOCBs are aborted when this function returns.
6963 lpfc_els_flush_cmd(struct lpfc_vport
*vport
)
6965 LIST_HEAD(abort_list
);
6966 struct lpfc_hba
*phba
= vport
->phba
;
6967 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
6968 struct lpfc_iocbq
*tmp_iocb
, *piocb
;
6971 lpfc_fabric_abort_vport(vport
);
6973 * For SLI3, only the hbalock is required. But SLI4 needs to coordinate
6974 * with the ring insert operation. Because lpfc_sli_issue_abort_iotag
6975 * ultimately grabs the ring_lock, the driver must splice the list into
6976 * a working list and release the locks before calling the abort.
6978 spin_lock_irq(&phba
->hbalock
);
6979 if (phba
->sli_rev
== LPFC_SLI_REV4
)
6980 spin_lock(&pring
->ring_lock
);
6982 list_for_each_entry_safe(piocb
, tmp_iocb
, &pring
->txcmplq
, list
) {
6983 if (piocb
->iocb_flag
& LPFC_IO_LIBDFC
)
6986 if (piocb
->vport
!= vport
)
6988 list_add_tail(&piocb
->dlist
, &abort_list
);
6990 if (phba
->sli_rev
== LPFC_SLI_REV4
)
6991 spin_unlock(&pring
->ring_lock
);
6992 spin_unlock_irq(&phba
->hbalock
);
6993 /* Abort each iocb on the aborted list and remove the dlist links. */
6994 list_for_each_entry_safe(piocb
, tmp_iocb
, &abort_list
, dlist
) {
6995 spin_lock_irq(&phba
->hbalock
);
6996 list_del_init(&piocb
->dlist
);
6997 lpfc_sli_issue_abort_iotag(phba
, pring
, piocb
);
6998 spin_unlock_irq(&phba
->hbalock
);
7000 if (!list_empty(&abort_list
))
7001 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
7002 "3387 abort list for txq not empty\n");
7003 INIT_LIST_HEAD(&abort_list
);
7005 spin_lock_irq(&phba
->hbalock
);
7006 if (phba
->sli_rev
== LPFC_SLI_REV4
)
7007 spin_lock(&pring
->ring_lock
);
7009 list_for_each_entry_safe(piocb
, tmp_iocb
, &pring
->txq
, list
) {
7012 if (piocb
->iocb_flag
& LPFC_IO_LIBDFC
) {
7016 /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */
7017 if (cmd
->ulpCommand
== CMD_QUE_RING_BUF_CN
||
7018 cmd
->ulpCommand
== CMD_QUE_RING_BUF64_CN
||
7019 cmd
->ulpCommand
== CMD_CLOSE_XRI_CN
||
7020 cmd
->ulpCommand
== CMD_ABORT_XRI_CN
)
7023 if (piocb
->vport
!= vport
)
7026 list_del_init(&piocb
->list
);
7027 list_add_tail(&piocb
->list
, &abort_list
);
7029 if (phba
->sli_rev
== LPFC_SLI_REV4
)
7030 spin_unlock(&pring
->ring_lock
);
7031 spin_unlock_irq(&phba
->hbalock
);
7033 /* Cancell all the IOCBs from the completions list */
7034 lpfc_sli_cancel_iocbs(phba
, &abort_list
,
7035 IOSTAT_LOCAL_REJECT
, IOERR_SLI_ABORTED
);
7041 * lpfc_els_flush_all_cmd - Clean up all the outstanding els commands to a HBA
7042 * @phba: pointer to lpfc hba data structure.
7044 * This routine is used to clean up all the outstanding ELS commands on a
7045 * @phba. It first aborts the @phba by invoking the lpfc_fabric_abort_hba()
7046 * routine. After that, it walks the ELS transmit queue to remove all the
7047 * IOCBs to the @phba other than the QUE_RING and ABORT/CLOSE IOCBs. For
7048 * the IOCBs with the completion callback function associated, the callback
7049 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and
7050 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs without the completion
7051 * callback function associated, the IOCB will simply be released. Finally,
7052 * it walks the ELS transmit completion queue to issue an abort IOCB to any
7053 * transmit completion queue IOCB that is not an IOCB from libdfc (i.e., the
7054 * management plane IOCBs that are not part of the discovery state machine)
7055 * out to HBA by invoking the lpfc_sli_issue_abort_iotag() routine.
7058 lpfc_els_flush_all_cmd(struct lpfc_hba
*phba
)
7060 struct lpfc_vport
*vport
;
7061 list_for_each_entry(vport
, &phba
->port_list
, listentry
)
7062 lpfc_els_flush_cmd(vport
);
7068 * lpfc_send_els_failure_event - Posts an ELS command failure event
7069 * @phba: Pointer to hba context object.
7070 * @cmdiocbp: Pointer to command iocb which reported error.
7071 * @rspiocbp: Pointer to response iocb which reported error.
7073 * This function sends an event when there is an ELS command
7077 lpfc_send_els_failure_event(struct lpfc_hba
*phba
,
7078 struct lpfc_iocbq
*cmdiocbp
,
7079 struct lpfc_iocbq
*rspiocbp
)
7081 struct lpfc_vport
*vport
= cmdiocbp
->vport
;
7082 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
7083 struct lpfc_lsrjt_event lsrjt_event
;
7084 struct lpfc_fabric_event_header fabric_event
;
7086 struct lpfc_nodelist
*ndlp
;
7089 ndlp
= cmdiocbp
->context1
;
7090 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
))
7093 if (rspiocbp
->iocb
.ulpStatus
== IOSTAT_LS_RJT
) {
7094 lsrjt_event
.header
.event_type
= FC_REG_ELS_EVENT
;
7095 lsrjt_event
.header
.subcategory
= LPFC_EVENT_LSRJT_RCV
;
7096 memcpy(lsrjt_event
.header
.wwpn
, &ndlp
->nlp_portname
,
7097 sizeof(struct lpfc_name
));
7098 memcpy(lsrjt_event
.header
.wwnn
, &ndlp
->nlp_nodename
,
7099 sizeof(struct lpfc_name
));
7100 pcmd
= (uint32_t *) (((struct lpfc_dmabuf
*)
7101 cmdiocbp
->context2
)->virt
);
7102 lsrjt_event
.command
= (pcmd
!= NULL
) ? *pcmd
: 0;
7103 stat
.un
.lsRjtError
= be32_to_cpu(rspiocbp
->iocb
.un
.ulpWord
[4]);
7104 lsrjt_event
.reason_code
= stat
.un
.b
.lsRjtRsnCode
;
7105 lsrjt_event
.explanation
= stat
.un
.b
.lsRjtRsnCodeExp
;
7106 fc_host_post_vendor_event(shost
,
7107 fc_get_event_number(),
7108 sizeof(lsrjt_event
),
7109 (char *)&lsrjt_event
,
7113 if ((rspiocbp
->iocb
.ulpStatus
== IOSTAT_NPORT_BSY
) ||
7114 (rspiocbp
->iocb
.ulpStatus
== IOSTAT_FABRIC_BSY
)) {
7115 fabric_event
.event_type
= FC_REG_FABRIC_EVENT
;
7116 if (rspiocbp
->iocb
.ulpStatus
== IOSTAT_NPORT_BSY
)
7117 fabric_event
.subcategory
= LPFC_EVENT_PORT_BUSY
;
7119 fabric_event
.subcategory
= LPFC_EVENT_FABRIC_BUSY
;
7120 memcpy(fabric_event
.wwpn
, &ndlp
->nlp_portname
,
7121 sizeof(struct lpfc_name
));
7122 memcpy(fabric_event
.wwnn
, &ndlp
->nlp_nodename
,
7123 sizeof(struct lpfc_name
));
7124 fc_host_post_vendor_event(shost
,
7125 fc_get_event_number(),
7126 sizeof(fabric_event
),
7127 (char *)&fabric_event
,
7135 * lpfc_send_els_event - Posts unsolicited els event
7136 * @vport: Pointer to vport object.
7137 * @ndlp: Pointer FC node object.
7138 * @cmd: ELS command code.
7140 * This function posts an event when there is an incoming
7141 * unsolicited ELS command.
7144 lpfc_send_els_event(struct lpfc_vport
*vport
,
7145 struct lpfc_nodelist
*ndlp
,
7148 struct lpfc_els_event_header
*els_data
= NULL
;
7149 struct lpfc_logo_event
*logo_data
= NULL
;
7150 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
7152 if (*payload
== ELS_CMD_LOGO
) {
7153 logo_data
= kmalloc(sizeof(struct lpfc_logo_event
), GFP_KERNEL
);
7155 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
7156 "0148 Failed to allocate memory "
7157 "for LOGO event\n");
7160 els_data
= &logo_data
->header
;
7162 els_data
= kmalloc(sizeof(struct lpfc_els_event_header
),
7165 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
7166 "0149 Failed to allocate memory "
7171 els_data
->event_type
= FC_REG_ELS_EVENT
;
7174 els_data
->subcategory
= LPFC_EVENT_PLOGI_RCV
;
7177 els_data
->subcategory
= LPFC_EVENT_PRLO_RCV
;
7180 els_data
->subcategory
= LPFC_EVENT_ADISC_RCV
;
7183 els_data
->subcategory
= LPFC_EVENT_LOGO_RCV
;
7184 /* Copy the WWPN in the LOGO payload */
7185 memcpy(logo_data
->logo_wwpn
, &payload
[2],
7186 sizeof(struct lpfc_name
));
7192 memcpy(els_data
->wwpn
, &ndlp
->nlp_portname
, sizeof(struct lpfc_name
));
7193 memcpy(els_data
->wwnn
, &ndlp
->nlp_nodename
, sizeof(struct lpfc_name
));
7194 if (*payload
== ELS_CMD_LOGO
) {
7195 fc_host_post_vendor_event(shost
,
7196 fc_get_event_number(),
7197 sizeof(struct lpfc_logo_event
),
7202 fc_host_post_vendor_event(shost
,
7203 fc_get_event_number(),
7204 sizeof(struct lpfc_els_event_header
),
7215 * lpfc_els_unsol_buffer - Process an unsolicited event data buffer
7216 * @phba: pointer to lpfc hba data structure.
7217 * @pring: pointer to a SLI ring.
7218 * @vport: pointer to a host virtual N_Port data structure.
7219 * @elsiocb: pointer to lpfc els command iocb data structure.
7221 * This routine is used for processing the IOCB associated with a unsolicited
7222 * event. It first determines whether there is an existing ndlp that matches
7223 * the DID from the unsolicited IOCB. If not, it will create a new one with
7224 * the DID from the unsolicited IOCB. The ELS command from the unsolicited
7225 * IOCB is then used to invoke the proper routine and to set up proper state
7226 * of the discovery state machine.
7229 lpfc_els_unsol_buffer(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
7230 struct lpfc_vport
*vport
, struct lpfc_iocbq
*elsiocb
)
7232 struct Scsi_Host
*shost
;
7233 struct lpfc_nodelist
*ndlp
;
7236 uint32_t cmd
, did
, newnode
;
7237 uint8_t rjt_exp
, rjt_err
= 0;
7238 IOCB_t
*icmd
= &elsiocb
->iocb
;
7240 if (!vport
|| !(elsiocb
->context2
))
7244 payload
= ((struct lpfc_dmabuf
*)elsiocb
->context2
)->virt
;
7246 if ((phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
) == 0)
7247 lpfc_post_buffer(phba
, pring
, 1);
7249 did
= icmd
->un
.rcvels
.remoteID
;
7250 if (icmd
->ulpStatus
) {
7251 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7252 "RCV Unsol ELS: status:x%x/x%x did:x%x",
7253 icmd
->ulpStatus
, icmd
->un
.ulpWord
[4], did
);
7257 /* Check to see if link went down during discovery */
7258 if (lpfc_els_chk_latt(vport
))
7261 /* Ignore traffic received during vport shutdown. */
7262 if (vport
->load_flag
& FC_UNLOADING
)
7265 /* If NPort discovery is delayed drop incoming ELS */
7266 if ((vport
->fc_flag
& FC_DISC_DELAYED
) &&
7267 (cmd
!= ELS_CMD_PLOGI
))
7270 ndlp
= lpfc_findnode_did(vport
, did
);
7272 /* Cannot find existing Fabric ndlp, so allocate a new one */
7273 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
7277 lpfc_nlp_init(vport
, ndlp
, did
);
7278 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
7280 if ((did
& Fabric_DID_MASK
) == Fabric_DID_MASK
)
7281 ndlp
->nlp_type
|= NLP_FABRIC
;
7282 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
7283 ndlp
= lpfc_enable_node(vport
, ndlp
,
7284 NLP_STE_UNUSED_NODE
);
7287 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
7289 if ((did
& Fabric_DID_MASK
) == Fabric_DID_MASK
)
7290 ndlp
->nlp_type
|= NLP_FABRIC
;
7291 } else if (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
) {
7292 /* This is similar to the new node path */
7293 ndlp
= lpfc_nlp_get(ndlp
);
7296 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
7300 phba
->fc_stat
.elsRcvFrame
++;
7303 * Do not process any unsolicited ELS commands
7304 * if the ndlp is in DEV_LOSS
7306 shost
= lpfc_shost_from_vport(vport
);
7307 spin_lock_irq(shost
->host_lock
);
7308 if (ndlp
->nlp_flag
& NLP_IN_DEV_LOSS
) {
7309 spin_unlock_irq(shost
->host_lock
);
7312 spin_unlock_irq(shost
->host_lock
);
7314 elsiocb
->context1
= lpfc_nlp_get(ndlp
);
7315 elsiocb
->vport
= vport
;
7317 if ((cmd
& ELS_CMD_MASK
) == ELS_CMD_RSCN
) {
7318 cmd
&= ELS_CMD_MASK
;
7320 /* ELS command <elsCmd> received from NPORT <did> */
7321 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
7322 "0112 ELS command x%x received from NPORT x%x "
7323 "Data: x%x x%x x%x x%x\n",
7324 cmd
, did
, vport
->port_state
, vport
->fc_flag
,
7325 vport
->fc_myDID
, vport
->fc_prevDID
);
7327 /* reject till our FLOGI completes */
7328 if ((vport
->port_state
< LPFC_FABRIC_CFG_LINK
) &&
7329 (cmd
!= ELS_CMD_FLOGI
)) {
7330 rjt_err
= LSRJT_UNABLE_TPC
;
7331 rjt_exp
= LSEXP_NOTHING_MORE
;
7337 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7338 "RCV PLOGI: did:x%x/ste:x%x flg:x%x",
7339 did
, vport
->port_state
, ndlp
->nlp_flag
);
7341 phba
->fc_stat
.elsRcvPLOGI
++;
7342 ndlp
= lpfc_plogi_confirm_nport(phba
, payload
, ndlp
);
7343 if (phba
->sli_rev
== LPFC_SLI_REV4
&&
7344 (phba
->pport
->fc_flag
& FC_PT2PT
)) {
7345 vport
->fc_prevDID
= vport
->fc_myDID
;
7346 /* Our DID needs to be updated before registering
7347 * the vfi. This is done in lpfc_rcv_plogi but
7348 * that is called after the reg_vfi.
7350 vport
->fc_myDID
= elsiocb
->iocb
.un
.rcvels
.parmRo
;
7351 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
7352 "3312 Remote port assigned DID x%x "
7353 "%x\n", vport
->fc_myDID
,
7357 lpfc_send_els_event(vport
, ndlp
, payload
);
7359 /* If Nport discovery is delayed, reject PLOGIs */
7360 if (vport
->fc_flag
& FC_DISC_DELAYED
) {
7361 rjt_err
= LSRJT_UNABLE_TPC
;
7362 rjt_exp
= LSEXP_NOTHING_MORE
;
7366 if (vport
->port_state
< LPFC_DISC_AUTH
) {
7367 if (!(phba
->pport
->fc_flag
& FC_PT2PT
) ||
7368 (phba
->pport
->fc_flag
& FC_PT2PT_PLOGI
)) {
7369 rjt_err
= LSRJT_UNABLE_TPC
;
7370 rjt_exp
= LSEXP_NOTHING_MORE
;
7375 spin_lock_irq(shost
->host_lock
);
7376 ndlp
->nlp_flag
&= ~NLP_TARGET_REMOVE
;
7377 spin_unlock_irq(shost
->host_lock
);
7379 lpfc_disc_state_machine(vport
, ndlp
, elsiocb
,
7384 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7385 "RCV FLOGI: did:x%x/ste:x%x flg:x%x",
7386 did
, vport
->port_state
, ndlp
->nlp_flag
);
7388 phba
->fc_stat
.elsRcvFLOGI
++;
7389 lpfc_els_rcv_flogi(vport
, elsiocb
, ndlp
);
7394 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7395 "RCV LOGO: did:x%x/ste:x%x flg:x%x",
7396 did
, vport
->port_state
, ndlp
->nlp_flag
);
7398 phba
->fc_stat
.elsRcvLOGO
++;
7399 lpfc_send_els_event(vport
, ndlp
, payload
);
7400 if (vport
->port_state
< LPFC_DISC_AUTH
) {
7401 rjt_err
= LSRJT_UNABLE_TPC
;
7402 rjt_exp
= LSEXP_NOTHING_MORE
;
7405 lpfc_disc_state_machine(vport
, ndlp
, elsiocb
, NLP_EVT_RCV_LOGO
);
7408 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7409 "RCV PRLO: did:x%x/ste:x%x flg:x%x",
7410 did
, vport
->port_state
, ndlp
->nlp_flag
);
7412 phba
->fc_stat
.elsRcvPRLO
++;
7413 lpfc_send_els_event(vport
, ndlp
, payload
);
7414 if (vport
->port_state
< LPFC_DISC_AUTH
) {
7415 rjt_err
= LSRJT_UNABLE_TPC
;
7416 rjt_exp
= LSEXP_NOTHING_MORE
;
7419 lpfc_disc_state_machine(vport
, ndlp
, elsiocb
, NLP_EVT_RCV_PRLO
);
7422 phba
->fc_stat
.elsRcvLCB
++;
7423 lpfc_els_rcv_lcb(vport
, elsiocb
, ndlp
);
7426 phba
->fc_stat
.elsRcvRDP
++;
7427 lpfc_els_rcv_rdp(vport
, elsiocb
, ndlp
);
7430 phba
->fc_stat
.elsRcvRSCN
++;
7431 lpfc_els_rcv_rscn(vport
, elsiocb
, ndlp
);
7436 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7437 "RCV ADISC: did:x%x/ste:x%x flg:x%x",
7438 did
, vport
->port_state
, ndlp
->nlp_flag
);
7440 lpfc_send_els_event(vport
, ndlp
, payload
);
7441 phba
->fc_stat
.elsRcvADISC
++;
7442 if (vport
->port_state
< LPFC_DISC_AUTH
) {
7443 rjt_err
= LSRJT_UNABLE_TPC
;
7444 rjt_exp
= LSEXP_NOTHING_MORE
;
7447 lpfc_disc_state_machine(vport
, ndlp
, elsiocb
,
7451 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7452 "RCV PDISC: did:x%x/ste:x%x flg:x%x",
7453 did
, vport
->port_state
, ndlp
->nlp_flag
);
7455 phba
->fc_stat
.elsRcvPDISC
++;
7456 if (vport
->port_state
< LPFC_DISC_AUTH
) {
7457 rjt_err
= LSRJT_UNABLE_TPC
;
7458 rjt_exp
= LSEXP_NOTHING_MORE
;
7461 lpfc_disc_state_machine(vport
, ndlp
, elsiocb
,
7465 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7466 "RCV FARPR: did:x%x/ste:x%x flg:x%x",
7467 did
, vport
->port_state
, ndlp
->nlp_flag
);
7469 phba
->fc_stat
.elsRcvFARPR
++;
7470 lpfc_els_rcv_farpr(vport
, elsiocb
, ndlp
);
7473 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7474 "RCV FARP: did:x%x/ste:x%x flg:x%x",
7475 did
, vport
->port_state
, ndlp
->nlp_flag
);
7477 phba
->fc_stat
.elsRcvFARP
++;
7478 lpfc_els_rcv_farp(vport
, elsiocb
, ndlp
);
7481 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7482 "RCV FAN: did:x%x/ste:x%x flg:x%x",
7483 did
, vport
->port_state
, ndlp
->nlp_flag
);
7485 phba
->fc_stat
.elsRcvFAN
++;
7486 lpfc_els_rcv_fan(vport
, elsiocb
, ndlp
);
7489 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7490 "RCV PRLI: did:x%x/ste:x%x flg:x%x",
7491 did
, vport
->port_state
, ndlp
->nlp_flag
);
7493 phba
->fc_stat
.elsRcvPRLI
++;
7494 if ((vport
->port_state
< LPFC_DISC_AUTH
) &&
7495 (vport
->fc_flag
& FC_FABRIC
)) {
7496 rjt_err
= LSRJT_UNABLE_TPC
;
7497 rjt_exp
= LSEXP_NOTHING_MORE
;
7500 lpfc_disc_state_machine(vport
, ndlp
, elsiocb
, NLP_EVT_RCV_PRLI
);
7503 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7504 "RCV LIRR: did:x%x/ste:x%x flg:x%x",
7505 did
, vport
->port_state
, ndlp
->nlp_flag
);
7507 phba
->fc_stat
.elsRcvLIRR
++;
7508 lpfc_els_rcv_lirr(vport
, elsiocb
, ndlp
);
7513 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7514 "RCV RLS: did:x%x/ste:x%x flg:x%x",
7515 did
, vport
->port_state
, ndlp
->nlp_flag
);
7517 phba
->fc_stat
.elsRcvRLS
++;
7518 lpfc_els_rcv_rls(vport
, elsiocb
, ndlp
);
7523 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7524 "RCV RPS: did:x%x/ste:x%x flg:x%x",
7525 did
, vport
->port_state
, ndlp
->nlp_flag
);
7527 phba
->fc_stat
.elsRcvRPS
++;
7528 lpfc_els_rcv_rps(vport
, elsiocb
, ndlp
);
7533 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7534 "RCV RPL: did:x%x/ste:x%x flg:x%x",
7535 did
, vport
->port_state
, ndlp
->nlp_flag
);
7537 phba
->fc_stat
.elsRcvRPL
++;
7538 lpfc_els_rcv_rpl(vport
, elsiocb
, ndlp
);
7543 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7544 "RCV RNID: did:x%x/ste:x%x flg:x%x",
7545 did
, vport
->port_state
, ndlp
->nlp_flag
);
7547 phba
->fc_stat
.elsRcvRNID
++;
7548 lpfc_els_rcv_rnid(vport
, elsiocb
, ndlp
);
7553 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7554 "RCV RTV: did:x%x/ste:x%x flg:x%x",
7555 did
, vport
->port_state
, ndlp
->nlp_flag
);
7556 phba
->fc_stat
.elsRcvRTV
++;
7557 lpfc_els_rcv_rtv(vport
, elsiocb
, ndlp
);
7562 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7563 "RCV RRQ: did:x%x/ste:x%x flg:x%x",
7564 did
, vport
->port_state
, ndlp
->nlp_flag
);
7566 phba
->fc_stat
.elsRcvRRQ
++;
7567 lpfc_els_rcv_rrq(vport
, elsiocb
, ndlp
);
7572 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7573 "RCV ECHO: did:x%x/ste:x%x flg:x%x",
7574 did
, vport
->port_state
, ndlp
->nlp_flag
);
7576 phba
->fc_stat
.elsRcvECHO
++;
7577 lpfc_els_rcv_echo(vport
, elsiocb
, ndlp
);
7582 /* receive this due to exchange closed */
7583 rjt_err
= LSRJT_UNABLE_TPC
;
7584 rjt_exp
= LSEXP_INVALID_OX_RX
;
7587 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7588 "RCV ELS cmd: cmd:x%x did:x%x/ste:x%x",
7589 cmd
, did
, vport
->port_state
);
7591 /* Unsupported ELS command, reject */
7592 rjt_err
= LSRJT_CMD_UNSUPPORTED
;
7593 rjt_exp
= LSEXP_NOTHING_MORE
;
7595 /* Unknown ELS command <elsCmd> received from NPORT <did> */
7596 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
7597 "0115 Unknown ELS command x%x "
7598 "received from NPORT x%x\n", cmd
, did
);
7605 /* check if need to LS_RJT received ELS cmd */
7607 memset(&stat
, 0, sizeof(stat
));
7608 stat
.un
.b
.lsRjtRsnCode
= rjt_err
;
7609 stat
.un
.b
.lsRjtRsnCodeExp
= rjt_exp
;
7610 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, elsiocb
, ndlp
,
7614 lpfc_nlp_put(elsiocb
->context1
);
7615 elsiocb
->context1
= NULL
;
7619 if (vport
&& !(vport
->load_flag
& FC_UNLOADING
))
7620 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
7621 "0111 Dropping received ELS cmd "
7622 "Data: x%x x%x x%x\n",
7623 icmd
->ulpStatus
, icmd
->un
.ulpWord
[4], icmd
->ulpTimeout
);
7624 phba
->fc_stat
.elsRcvDrop
++;
7628 * lpfc_els_unsol_event - Process an unsolicited event from an els sli ring
7629 * @phba: pointer to lpfc hba data structure.
7630 * @pring: pointer to a SLI ring.
7631 * @elsiocb: pointer to lpfc els iocb data structure.
7633 * This routine is used to process an unsolicited event received from a SLI
7634 * (Service Level Interface) ring. The actual processing of the data buffer
7635 * associated with the unsolicited event is done by invoking the routine
7636 * lpfc_els_unsol_buffer() after properly set up the iocb buffer from the
7637 * SLI ring on which the unsolicited event was received.
7640 lpfc_els_unsol_event(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
7641 struct lpfc_iocbq
*elsiocb
)
7643 struct lpfc_vport
*vport
= phba
->pport
;
7644 IOCB_t
*icmd
= &elsiocb
->iocb
;
7646 struct lpfc_dmabuf
*bdeBuf1
= elsiocb
->context2
;
7647 struct lpfc_dmabuf
*bdeBuf2
= elsiocb
->context3
;
7649 elsiocb
->context1
= NULL
;
7650 elsiocb
->context2
= NULL
;
7651 elsiocb
->context3
= NULL
;
7653 if (icmd
->ulpStatus
== IOSTAT_NEED_BUFFER
) {
7654 lpfc_sli_hbqbuf_add_hbqs(phba
, LPFC_ELS_HBQ
);
7655 } else if (icmd
->ulpStatus
== IOSTAT_LOCAL_REJECT
&&
7656 (icmd
->un
.ulpWord
[4] & IOERR_PARAM_MASK
) ==
7657 IOERR_RCV_BUFFER_WAITING
) {
7658 phba
->fc_stat
.NoRcvBuf
++;
7659 /* Not enough posted buffers; Try posting more buffers */
7660 if (!(phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
))
7661 lpfc_post_buffer(phba
, pring
, 0);
7665 if ((phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
7666 (icmd
->ulpCommand
== CMD_IOCB_RCV_ELS64_CX
||
7667 icmd
->ulpCommand
== CMD_IOCB_RCV_SEQ64_CX
)) {
7668 if (icmd
->unsli3
.rcvsli3
.vpi
== 0xffff)
7669 vport
= phba
->pport
;
7671 vport
= lpfc_find_vport_by_vpid(phba
,
7672 icmd
->unsli3
.rcvsli3
.vpi
);
7675 /* If there are no BDEs associated
7676 * with this IOCB, there is nothing to do.
7678 if (icmd
->ulpBdeCount
== 0)
7681 /* type of ELS cmd is first 32bit word
7684 if (phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
) {
7685 elsiocb
->context2
= bdeBuf1
;
7687 paddr
= getPaddr(icmd
->un
.cont64
[0].addrHigh
,
7688 icmd
->un
.cont64
[0].addrLow
);
7689 elsiocb
->context2
= lpfc_sli_ringpostbuf_get(phba
, pring
,
7693 lpfc_els_unsol_buffer(phba
, pring
, vport
, elsiocb
);
7695 * The different unsolicited event handlers would tell us
7696 * if they are done with "mp" by setting context2 to NULL.
7698 if (elsiocb
->context2
) {
7699 lpfc_in_buf_free(phba
, (struct lpfc_dmabuf
*)elsiocb
->context2
);
7700 elsiocb
->context2
= NULL
;
7703 /* RCV_ELS64_CX provide for 2 BDEs - process 2nd if included */
7704 if ((phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
) &&
7705 icmd
->ulpBdeCount
== 2) {
7706 elsiocb
->context2
= bdeBuf2
;
7707 lpfc_els_unsol_buffer(phba
, pring
, vport
, elsiocb
);
7708 /* free mp if we are done with it */
7709 if (elsiocb
->context2
) {
7710 lpfc_in_buf_free(phba
, elsiocb
->context2
);
7711 elsiocb
->context2
= NULL
;
7717 * lpfc_do_scr_ns_plogi - Issue a plogi to the name server for scr
7718 * @phba: pointer to lpfc hba data structure.
7719 * @vport: pointer to a virtual N_Port data structure.
7721 * This routine issues a Port Login (PLOGI) to the Name Server with
7722 * State Change Request (SCR) for a @vport. This routine will create an
7723 * ndlp for the Name Server associated to the @vport if such node does
7724 * not already exist. The PLOGI to Name Server is issued by invoking the
7725 * lpfc_issue_els_plogi() routine. If Fabric-Device Management Interface
7726 * (FDMI) is configured to the @vport, a FDMI node will be created and
7727 * the PLOGI to FDMI is issued by invoking lpfc_issue_els_plogi() routine.
7730 lpfc_do_scr_ns_plogi(struct lpfc_hba
*phba
, struct lpfc_vport
*vport
)
7732 struct lpfc_nodelist
*ndlp
, *ndlp_fdmi
;
7733 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
7736 * If lpfc_delay_discovery parameter is set and the clean address
7737 * bit is cleared and fc fabric parameters chenged, delay FC NPort
7740 spin_lock_irq(shost
->host_lock
);
7741 if (vport
->fc_flag
& FC_DISC_DELAYED
) {
7742 spin_unlock_irq(shost
->host_lock
);
7743 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
,
7744 "3334 Delay fc port discovery for %d seconds\n",
7746 mod_timer(&vport
->delayed_disc_tmo
,
7747 jiffies
+ msecs_to_jiffies(1000 * phba
->fc_ratov
));
7750 spin_unlock_irq(shost
->host_lock
);
7752 ndlp
= lpfc_findnode_did(vport
, NameServer_DID
);
7754 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
7756 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
7757 lpfc_disc_start(vport
);
7760 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
7761 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
7762 "0251 NameServer login: no memory\n");
7765 lpfc_nlp_init(vport
, ndlp
, NameServer_DID
);
7766 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
7767 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_UNUSED_NODE
);
7769 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
7770 lpfc_disc_start(vport
);
7773 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
7774 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
7775 "0348 NameServer login: node freed\n");
7779 ndlp
->nlp_type
|= NLP_FABRIC
;
7781 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_PLOGI_ISSUE
);
7783 if (lpfc_issue_els_plogi(vport
, ndlp
->nlp_DID
, 0)) {
7784 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
7785 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
7786 "0252 Cannot issue NameServer login\n");
7790 if (vport
->cfg_fdmi_on
& LPFC_FDMI_SUPPORT
) {
7791 /* If this is the first time, allocate an ndlp and initialize
7792 * it. Otherwise, make sure the node is enabled and then do the
7795 ndlp_fdmi
= lpfc_findnode_did(vport
, FDMI_DID
);
7797 ndlp_fdmi
= mempool_alloc(phba
->nlp_mem_pool
,
7800 lpfc_nlp_init(vport
, ndlp_fdmi
, FDMI_DID
);
7801 ndlp_fdmi
->nlp_type
|= NLP_FABRIC
;
7805 if (!NLP_CHK_NODE_ACT(ndlp_fdmi
))
7806 ndlp_fdmi
= lpfc_enable_node(vport
,
7811 lpfc_nlp_set_state(vport
, ndlp_fdmi
,
7812 NLP_STE_PLOGI_ISSUE
);
7813 lpfc_issue_els_plogi(vport
, ndlp_fdmi
->nlp_DID
, 0);
7819 * lpfc_cmpl_reg_new_vport - Completion callback function to register new vport
7820 * @phba: pointer to lpfc hba data structure.
7821 * @pmb: pointer to the driver internal queue element for mailbox command.
7823 * This routine is the completion callback function to register new vport
7824 * mailbox command. If the new vport mailbox command completes successfully,
7825 * the fabric registration login shall be performed on physical port (the
7826 * new vport created is actually a physical port, with VPI 0) or the port
7827 * login to Name Server for State Change Request (SCR) will be performed
7828 * on virtual port (real virtual port, with VPI greater than 0).
7831 lpfc_cmpl_reg_new_vport(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
7833 struct lpfc_vport
*vport
= pmb
->vport
;
7834 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
7835 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
7836 MAILBOX_t
*mb
= &pmb
->u
.mb
;
7839 spin_lock_irq(shost
->host_lock
);
7840 vport
->fc_flag
&= ~FC_VPORT_NEEDS_REG_VPI
;
7841 spin_unlock_irq(shost
->host_lock
);
7843 if (mb
->mbxStatus
) {
7844 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
7845 "0915 Register VPI failed : Status: x%x"
7846 " upd bit: x%x \n", mb
->mbxStatus
,
7847 mb
->un
.varRegVpi
.upd
);
7848 if (phba
->sli_rev
== LPFC_SLI_REV4
&&
7849 mb
->un
.varRegVpi
.upd
)
7850 goto mbox_err_exit
;
7852 switch (mb
->mbxStatus
) {
7853 case 0x11: /* unsupported feature */
7854 case 0x9603: /* max_vpi exceeded */
7855 case 0x9602: /* Link event since CLEAR_LA */
7856 /* giving up on vport registration */
7857 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
7858 spin_lock_irq(shost
->host_lock
);
7859 vport
->fc_flag
&= ~(FC_FABRIC
| FC_PUBLIC_LOOP
);
7860 spin_unlock_irq(shost
->host_lock
);
7861 lpfc_can_disctmo(vport
);
7863 /* If reg_vpi fail with invalid VPI status, re-init VPI */
7865 spin_lock_irq(shost
->host_lock
);
7866 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
7867 spin_unlock_irq(shost
->host_lock
);
7868 lpfc_init_vpi(phba
, pmb
, vport
->vpi
);
7870 pmb
->mbox_cmpl
= lpfc_init_vpi_cmpl
;
7871 rc
= lpfc_sli_issue_mbox(phba
, pmb
,
7873 if (rc
== MBX_NOT_FINISHED
) {
7874 lpfc_printf_vlog(vport
,
7876 "2732 Failed to issue INIT_VPI"
7877 " mailbox command\n");
7884 /* Try to recover from this error */
7885 if (phba
->sli_rev
== LPFC_SLI_REV4
)
7886 lpfc_sli4_unreg_all_rpis(vport
);
7887 lpfc_mbx_unreg_vpi(vport
);
7888 spin_lock_irq(shost
->host_lock
);
7889 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
7890 spin_unlock_irq(shost
->host_lock
);
7891 if (mb
->mbxStatus
== MBX_NOT_FINISHED
)
7893 if ((vport
->port_type
== LPFC_PHYSICAL_PORT
) &&
7894 !(vport
->fc_flag
& FC_LOGO_RCVD_DID_CHNG
)) {
7895 if (phba
->sli_rev
== LPFC_SLI_REV4
)
7896 lpfc_issue_init_vfi(vport
);
7898 lpfc_initial_flogi(vport
);
7900 lpfc_initial_fdisc(vport
);
7905 spin_lock_irq(shost
->host_lock
);
7906 vport
->vpi_state
|= LPFC_VPI_REGISTERED
;
7907 spin_unlock_irq(shost
->host_lock
);
7908 if (vport
== phba
->pport
) {
7909 if (phba
->sli_rev
< LPFC_SLI_REV4
)
7910 lpfc_issue_fabric_reglogin(vport
);
7913 * If the physical port is instantiated using
7914 * FDISC, do not start vport discovery.
7916 if (vport
->port_state
!= LPFC_FDISC
)
7917 lpfc_start_fdiscs(phba
);
7918 lpfc_do_scr_ns_plogi(phba
, vport
);
7921 lpfc_do_scr_ns_plogi(phba
, vport
);
7924 /* Now, we decrement the ndlp reference count held for this
7929 mempool_free(pmb
, phba
->mbox_mem_pool
);
7934 * lpfc_register_new_vport - Register a new vport with a HBA
7935 * @phba: pointer to lpfc hba data structure.
7936 * @vport: pointer to a host virtual N_Port data structure.
7937 * @ndlp: pointer to a node-list data structure.
7939 * This routine registers the @vport as a new virtual port with a HBA.
7940 * It is done through a registering vpi mailbox command.
7943 lpfc_register_new_vport(struct lpfc_hba
*phba
, struct lpfc_vport
*vport
,
7944 struct lpfc_nodelist
*ndlp
)
7946 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
7949 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
7951 lpfc_reg_vpi(vport
, mbox
);
7952 mbox
->vport
= vport
;
7953 mbox
->context2
= lpfc_nlp_get(ndlp
);
7954 mbox
->mbox_cmpl
= lpfc_cmpl_reg_new_vport
;
7955 if (lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
)
7956 == MBX_NOT_FINISHED
) {
7957 /* mailbox command not success, decrement ndlp
7958 * reference count for this command
7961 mempool_free(mbox
, phba
->mbox_mem_pool
);
7963 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
7964 "0253 Register VPI: Can't send mbox\n");
7968 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
7969 "0254 Register VPI: no memory\n");
7975 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
7976 spin_lock_irq(shost
->host_lock
);
7977 vport
->fc_flag
&= ~FC_VPORT_NEEDS_REG_VPI
;
7978 spin_unlock_irq(shost
->host_lock
);
7983 * lpfc_cancel_all_vport_retry_delay_timer - Cancel all vport retry delay timer
7984 * @phba: pointer to lpfc hba data structure.
7986 * This routine cancels the retry delay timers to all the vports.
7989 lpfc_cancel_all_vport_retry_delay_timer(struct lpfc_hba
*phba
)
7991 struct lpfc_vport
**vports
;
7992 struct lpfc_nodelist
*ndlp
;
7993 uint32_t link_state
;
7996 /* Treat this failure as linkdown for all vports */
7997 link_state
= phba
->link_state
;
7998 lpfc_linkdown(phba
);
7999 phba
->link_state
= link_state
;
8001 vports
= lpfc_create_vport_work_array(phba
);
8004 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
8005 ndlp
= lpfc_findnode_did(vports
[i
], Fabric_DID
);
8007 lpfc_cancel_retry_delay_tmo(vports
[i
], ndlp
);
8008 lpfc_els_flush_cmd(vports
[i
]);
8010 lpfc_destroy_vport_work_array(phba
, vports
);
8015 * lpfc_retry_pport_discovery - Start timer to retry FLOGI.
8016 * @phba: pointer to lpfc hba data structure.
8018 * This routine abort all pending discovery commands and
8019 * start a timer to retry FLOGI for the physical port
8023 lpfc_retry_pport_discovery(struct lpfc_hba
*phba
)
8025 struct lpfc_nodelist
*ndlp
;
8026 struct Scsi_Host
*shost
;
8028 /* Cancel the all vports retry delay retry timers */
8029 lpfc_cancel_all_vport_retry_delay_timer(phba
);
8031 /* If fabric require FLOGI, then re-instantiate physical login */
8032 ndlp
= lpfc_findnode_did(phba
->pport
, Fabric_DID
);
8036 shost
= lpfc_shost_from_vport(phba
->pport
);
8037 mod_timer(&ndlp
->nlp_delayfunc
, jiffies
+ msecs_to_jiffies(1000));
8038 spin_lock_irq(shost
->host_lock
);
8039 ndlp
->nlp_flag
|= NLP_DELAY_TMO
;
8040 spin_unlock_irq(shost
->host_lock
);
8041 ndlp
->nlp_last_elscmd
= ELS_CMD_FLOGI
;
8042 phba
->pport
->port_state
= LPFC_FLOGI
;
8047 * lpfc_fabric_login_reqd - Check if FLOGI required.
8048 * @phba: pointer to lpfc hba data structure.
8049 * @cmdiocb: pointer to FDISC command iocb.
8050 * @rspiocb: pointer to FDISC response iocb.
8052 * This routine checks if a FLOGI is reguired for FDISC
8056 lpfc_fabric_login_reqd(struct lpfc_hba
*phba
,
8057 struct lpfc_iocbq
*cmdiocb
,
8058 struct lpfc_iocbq
*rspiocb
)
8061 if ((rspiocb
->iocb
.ulpStatus
!= IOSTAT_FABRIC_RJT
) ||
8062 (rspiocb
->iocb
.un
.ulpWord
[4] != RJT_LOGIN_REQUIRED
))
8069 * lpfc_cmpl_els_fdisc - Completion function for fdisc iocb command
8070 * @phba: pointer to lpfc hba data structure.
8071 * @cmdiocb: pointer to lpfc command iocb data structure.
8072 * @rspiocb: pointer to lpfc response iocb data structure.
8074 * This routine is the completion callback function to a Fabric Discover
8075 * (FDISC) ELS command. Since all the FDISC ELS commands are issued
8076 * single threaded, each FDISC completion callback function will reset
8077 * the discovery timer for all vports such that the timers will not get
8078 * unnecessary timeout. The function checks the FDISC IOCB status. If error
8079 * detected, the vport will be set to FC_VPORT_FAILED state. Otherwise,the
8080 * vport will set to FC_VPORT_ACTIVE state. It then checks whether the DID
8081 * assigned to the vport has been changed with the completion of the FDISC
8082 * command. If so, both RPI (Remote Port Index) and VPI (Virtual Port Index)
8083 * are unregistered from the HBA, and then the lpfc_register_new_vport()
8084 * routine is invoked to register new vport with the HBA. Otherwise, the
8085 * lpfc_do_scr_ns_plogi() routine is invoked to issue a PLOGI to the Name
8086 * Server for State Change Request (SCR).
8089 lpfc_cmpl_els_fdisc(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
8090 struct lpfc_iocbq
*rspiocb
)
8092 struct lpfc_vport
*vport
= cmdiocb
->vport
;
8093 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
8094 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) cmdiocb
->context1
;
8095 struct lpfc_nodelist
*np
;
8096 struct lpfc_nodelist
*next_np
;
8097 IOCB_t
*irsp
= &rspiocb
->iocb
;
8098 struct lpfc_iocbq
*piocb
;
8099 struct lpfc_dmabuf
*pcmd
= cmdiocb
->context2
, *prsp
;
8100 struct serv_parm
*sp
;
8101 uint8_t fabric_param_changed
;
8103 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
8104 "0123 FDISC completes. x%x/x%x prevDID: x%x\n",
8105 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
8107 /* Since all FDISCs are being single threaded, we
8108 * must reset the discovery timer for ALL vports
8109 * waiting to send FDISC when one completes.
8111 list_for_each_entry(piocb
, &phba
->fabric_iocb_list
, list
) {
8112 lpfc_set_disctmo(piocb
->vport
);
8115 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
8116 "FDISC cmpl: status:x%x/x%x prevdid:x%x",
8117 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4], vport
->fc_prevDID
);
8119 if (irsp
->ulpStatus
) {
8121 if (lpfc_fabric_login_reqd(phba
, cmdiocb
, rspiocb
)) {
8122 lpfc_retry_pport_discovery(phba
);
8126 /* Check for retry */
8127 if (lpfc_els_retry(phba
, cmdiocb
, rspiocb
))
8130 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
8131 "0126 FDISC failed. (x%x/x%x)\n",
8132 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4]);
8135 spin_lock_irq(shost
->host_lock
);
8136 vport
->fc_flag
&= ~FC_VPORT_CVL_RCVD
;
8137 vport
->fc_flag
&= ~FC_VPORT_LOGO_RCVD
;
8138 vport
->fc_flag
|= FC_FABRIC
;
8139 if (vport
->phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
)
8140 vport
->fc_flag
|= FC_PUBLIC_LOOP
;
8141 spin_unlock_irq(shost
->host_lock
);
8143 vport
->fc_myDID
= irsp
->un
.ulpWord
[4] & Mask_DID
;
8144 lpfc_vport_set_state(vport
, FC_VPORT_ACTIVE
);
8145 prsp
= list_get_first(&pcmd
->list
, struct lpfc_dmabuf
, list
);
8148 sp
= prsp
->virt
+ sizeof(uint32_t);
8149 fabric_param_changed
= lpfc_check_clean_addr_bit(vport
, sp
);
8150 memcpy(&vport
->fabric_portname
, &sp
->portName
,
8151 sizeof(struct lpfc_name
));
8152 memcpy(&vport
->fabric_nodename
, &sp
->nodeName
,
8153 sizeof(struct lpfc_name
));
8154 if (fabric_param_changed
&&
8155 !(vport
->fc_flag
& FC_VPORT_NEEDS_REG_VPI
)) {
8156 /* If our NportID changed, we need to ensure all
8157 * remaining NPORTs get unreg_login'ed so we can
8160 list_for_each_entry_safe(np
, next_np
,
8161 &vport
->fc_nodes
, nlp_listp
) {
8162 if (!NLP_CHK_NODE_ACT(ndlp
) ||
8163 (np
->nlp_state
!= NLP_STE_NPR_NODE
) ||
8164 !(np
->nlp_flag
& NLP_NPR_ADISC
))
8166 spin_lock_irq(shost
->host_lock
);
8167 np
->nlp_flag
&= ~NLP_NPR_ADISC
;
8168 spin_unlock_irq(shost
->host_lock
);
8169 lpfc_unreg_rpi(vport
, np
);
8171 lpfc_cleanup_pending_mbox(vport
);
8173 if (phba
->sli_rev
== LPFC_SLI_REV4
)
8174 lpfc_sli4_unreg_all_rpis(vport
);
8176 lpfc_mbx_unreg_vpi(vport
);
8177 spin_lock_irq(shost
->host_lock
);
8178 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
8179 if (phba
->sli_rev
== LPFC_SLI_REV4
)
8180 vport
->fc_flag
|= FC_VPORT_NEEDS_INIT_VPI
;
8182 vport
->fc_flag
|= FC_LOGO_RCVD_DID_CHNG
;
8183 spin_unlock_irq(shost
->host_lock
);
8184 } else if ((phba
->sli_rev
== LPFC_SLI_REV4
) &&
8185 !(vport
->fc_flag
& FC_VPORT_NEEDS_REG_VPI
)) {
8187 * Driver needs to re-reg VPI in order for f/w
8188 * to update the MAC address.
8190 lpfc_register_new_vport(phba
, vport
, ndlp
);
8194 if (vport
->fc_flag
& FC_VPORT_NEEDS_INIT_VPI
)
8195 lpfc_issue_init_vpi(vport
);
8196 else if (vport
->fc_flag
& FC_VPORT_NEEDS_REG_VPI
)
8197 lpfc_register_new_vport(phba
, vport
, ndlp
);
8199 lpfc_do_scr_ns_plogi(phba
, vport
);
8202 if (vport
->fc_vport
->vport_state
!= FC_VPORT_NO_FABRIC_RSCS
)
8203 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
8204 /* Cancel discovery timer */
8205 lpfc_can_disctmo(vport
);
8208 lpfc_els_free_iocb(phba
, cmdiocb
);
8212 * lpfc_issue_els_fdisc - Issue a fdisc iocb command
8213 * @vport: pointer to a virtual N_Port data structure.
8214 * @ndlp: pointer to a node-list data structure.
8215 * @retry: number of retries to the command IOCB.
8217 * This routine prepares and issues a Fabric Discover (FDISC) IOCB to
8218 * a remote node (@ndlp) off a @vport. It uses the lpfc_issue_fabric_iocb()
8219 * routine to issue the IOCB, which makes sure only one outstanding fabric
8220 * IOCB will be sent off HBA at any given time.
8222 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
8223 * will be incremented by 1 for holding the ndlp and the reference to ndlp
8224 * will be stored into the context1 field of the IOCB for the completion
8225 * callback function to the FDISC ELS command.
8228 * 0 - Successfully issued fdisc iocb command
8229 * 1 - Failed to issue fdisc iocb command
8232 lpfc_issue_els_fdisc(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
8235 struct lpfc_hba
*phba
= vport
->phba
;
8237 struct lpfc_iocbq
*elsiocb
;
8238 struct serv_parm
*sp
;
8241 int did
= ndlp
->nlp_DID
;
8244 vport
->port_state
= LPFC_FDISC
;
8245 vport
->fc_myDID
= 0;
8246 cmdsize
= (sizeof(uint32_t) + sizeof(struct serv_parm
));
8247 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
, did
,
8250 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
8251 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
8252 "0255 Issue FDISC: no IOCB\n");
8256 icmd
= &elsiocb
->iocb
;
8257 icmd
->un
.elsreq64
.myID
= 0;
8258 icmd
->un
.elsreq64
.fl
= 1;
8261 * SLI3 ports require a different context type value than SLI4.
8262 * Catch SLI3 ports here and override the prep.
8264 if (phba
->sli_rev
== LPFC_SLI_REV3
) {
8269 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
8270 *((uint32_t *) (pcmd
)) = ELS_CMD_FDISC
;
8271 pcmd
+= sizeof(uint32_t); /* CSP Word 1 */
8272 memcpy(pcmd
, &vport
->phba
->pport
->fc_sparam
, sizeof(struct serv_parm
));
8273 sp
= (struct serv_parm
*) pcmd
;
8274 /* Setup CSPs accordingly for Fabric */
8275 sp
->cmn
.e_d_tov
= 0;
8276 sp
->cmn
.w2
.r_a_tov
= 0;
8277 sp
->cmn
.virtual_fabric_support
= 0;
8278 sp
->cls1
.classValid
= 0;
8279 sp
->cls2
.seqDelivery
= 1;
8280 sp
->cls3
.seqDelivery
= 1;
8282 pcmd
+= sizeof(uint32_t); /* CSP Word 2 */
8283 pcmd
+= sizeof(uint32_t); /* CSP Word 3 */
8284 pcmd
+= sizeof(uint32_t); /* CSP Word 4 */
8285 pcmd
+= sizeof(uint32_t); /* Port Name */
8286 memcpy(pcmd
, &vport
->fc_portname
, 8);
8287 pcmd
+= sizeof(uint32_t); /* Node Name */
8288 pcmd
+= sizeof(uint32_t); /* Node Name */
8289 memcpy(pcmd
, &vport
->fc_nodename
, 8);
8291 lpfc_set_disctmo(vport
);
8293 phba
->fc_stat
.elsXmitFDISC
++;
8294 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_fdisc
;
8296 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
8297 "Issue FDISC: did:x%x",
8300 rc
= lpfc_issue_fabric_iocb(phba
, elsiocb
);
8301 if (rc
== IOCB_ERROR
) {
8302 lpfc_els_free_iocb(phba
, elsiocb
);
8303 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
8304 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
8305 "0256 Issue FDISC: Cannot send IOCB\n");
8308 lpfc_vport_set_state(vport
, FC_VPORT_INITIALIZING
);
8313 * lpfc_cmpl_els_npiv_logo - Completion function with vport logo
8314 * @phba: pointer to lpfc hba data structure.
8315 * @cmdiocb: pointer to lpfc command iocb data structure.
8316 * @rspiocb: pointer to lpfc response iocb data structure.
8318 * This routine is the completion callback function to the issuing of a LOGO
8319 * ELS command off a vport. It frees the command IOCB and then decrement the
8320 * reference count held on ndlp for this completion function, indicating that
8321 * the reference to the ndlp is no long needed. Note that the
8322 * lpfc_els_free_iocb() routine decrements the ndlp reference held for this
8323 * callback function and an additional explicit ndlp reference decrementation
8324 * will trigger the actual release of the ndlp.
8327 lpfc_cmpl_els_npiv_logo(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
8328 struct lpfc_iocbq
*rspiocb
)
8330 struct lpfc_vport
*vport
= cmdiocb
->vport
;
8332 struct lpfc_nodelist
*ndlp
;
8333 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
8335 ndlp
= (struct lpfc_nodelist
*)cmdiocb
->context1
;
8336 irsp
= &rspiocb
->iocb
;
8337 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
8338 "LOGO npiv cmpl: status:x%x/x%x did:x%x",
8339 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4], irsp
->un
.rcvels
.remoteID
);
8341 lpfc_els_free_iocb(phba
, cmdiocb
);
8342 vport
->unreg_vpi_cmpl
= VPORT_ERROR
;
8344 /* Trigger the release of the ndlp after logo */
8347 /* NPIV LOGO completes to NPort <nlp_DID> */
8348 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
8349 "2928 NPIV LOGO completes to NPort x%x "
8350 "Data: x%x x%x x%x x%x\n",
8351 ndlp
->nlp_DID
, irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
8352 irsp
->ulpTimeout
, vport
->num_disc_nodes
);
8354 if (irsp
->ulpStatus
== IOSTAT_SUCCESS
) {
8355 spin_lock_irq(shost
->host_lock
);
8356 vport
->fc_flag
&= ~FC_NDISC_ACTIVE
;
8357 vport
->fc_flag
&= ~FC_FABRIC
;
8358 spin_unlock_irq(shost
->host_lock
);
8359 lpfc_can_disctmo(vport
);
8364 * lpfc_issue_els_npiv_logo - Issue a logo off a vport
8365 * @vport: pointer to a virtual N_Port data structure.
8366 * @ndlp: pointer to a node-list data structure.
8368 * This routine issues a LOGO ELS command to an @ndlp off a @vport.
8370 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
8371 * will be incremented by 1 for holding the ndlp and the reference to ndlp
8372 * will be stored into the context1 field of the IOCB for the completion
8373 * callback function to the LOGO ELS command.
8376 * 0 - Successfully issued logo off the @vport
8377 * 1 - Failed to issue logo off the @vport
8380 lpfc_issue_els_npiv_logo(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
8382 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
8383 struct lpfc_hba
*phba
= vport
->phba
;
8384 struct lpfc_iocbq
*elsiocb
;
8388 cmdsize
= 2 * sizeof(uint32_t) + sizeof(struct lpfc_name
);
8389 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, 0, ndlp
, ndlp
->nlp_DID
,
8394 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
8395 *((uint32_t *) (pcmd
)) = ELS_CMD_LOGO
;
8396 pcmd
+= sizeof(uint32_t);
8398 /* Fill in LOGO payload */
8399 *((uint32_t *) (pcmd
)) = be32_to_cpu(vport
->fc_myDID
);
8400 pcmd
+= sizeof(uint32_t);
8401 memcpy(pcmd
, &vport
->fc_portname
, sizeof(struct lpfc_name
));
8403 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
8404 "Issue LOGO npiv did:x%x flg:x%x",
8405 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
8407 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_npiv_logo
;
8408 spin_lock_irq(shost
->host_lock
);
8409 ndlp
->nlp_flag
|= NLP_LOGO_SND
;
8410 spin_unlock_irq(shost
->host_lock
);
8411 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) ==
8413 spin_lock_irq(shost
->host_lock
);
8414 ndlp
->nlp_flag
&= ~NLP_LOGO_SND
;
8415 spin_unlock_irq(shost
->host_lock
);
8416 lpfc_els_free_iocb(phba
, elsiocb
);
8423 * lpfc_fabric_block_timeout - Handler function to the fabric block timer
8424 * @ptr: holder for the timer function associated data.
8426 * This routine is invoked by the fabric iocb block timer after
8427 * timeout. It posts the fabric iocb block timeout event by setting the
8428 * WORKER_FABRIC_BLOCK_TMO bit to work port event bitmap and then invokes
8429 * lpfc_worker_wake_up() routine to wake up the worker thread. It is for
8430 * the worker thread to invoke the lpfc_unblock_fabric_iocbs() on the
8431 * posted event WORKER_FABRIC_BLOCK_TMO.
8434 lpfc_fabric_block_timeout(unsigned long ptr
)
8436 struct lpfc_hba
*phba
= (struct lpfc_hba
*) ptr
;
8437 unsigned long iflags
;
8438 uint32_t tmo_posted
;
8440 spin_lock_irqsave(&phba
->pport
->work_port_lock
, iflags
);
8441 tmo_posted
= phba
->pport
->work_port_events
& WORKER_FABRIC_BLOCK_TMO
;
8443 phba
->pport
->work_port_events
|= WORKER_FABRIC_BLOCK_TMO
;
8444 spin_unlock_irqrestore(&phba
->pport
->work_port_lock
, iflags
);
8447 lpfc_worker_wake_up(phba
);
8452 * lpfc_resume_fabric_iocbs - Issue a fabric iocb from driver internal list
8453 * @phba: pointer to lpfc hba data structure.
8455 * This routine issues one fabric iocb from the driver internal list to
8456 * the HBA. It first checks whether it's ready to issue one fabric iocb to
8457 * the HBA (whether there is no outstanding fabric iocb). If so, it shall
8458 * remove one pending fabric iocb from the driver internal list and invokes
8459 * lpfc_sli_issue_iocb() routine to send the fabric iocb to the HBA.
8462 lpfc_resume_fabric_iocbs(struct lpfc_hba
*phba
)
8464 struct lpfc_iocbq
*iocb
;
8465 unsigned long iflags
;
8471 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8472 /* Post any pending iocb to the SLI layer */
8473 if (atomic_read(&phba
->fabric_iocb_count
) == 0) {
8474 list_remove_head(&phba
->fabric_iocb_list
, iocb
, typeof(*iocb
),
8477 /* Increment fabric iocb count to hold the position */
8478 atomic_inc(&phba
->fabric_iocb_count
);
8480 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8482 iocb
->fabric_iocb_cmpl
= iocb
->iocb_cmpl
;
8483 iocb
->iocb_cmpl
= lpfc_cmpl_fabric_iocb
;
8484 iocb
->iocb_flag
|= LPFC_IO_FABRIC
;
8486 lpfc_debugfs_disc_trc(iocb
->vport
, LPFC_DISC_TRC_ELS_CMD
,
8487 "Fabric sched1: ste:x%x",
8488 iocb
->vport
->port_state
, 0, 0);
8490 ret
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, iocb
, 0);
8492 if (ret
== IOCB_ERROR
) {
8493 iocb
->iocb_cmpl
= iocb
->fabric_iocb_cmpl
;
8494 iocb
->fabric_iocb_cmpl
= NULL
;
8495 iocb
->iocb_flag
&= ~LPFC_IO_FABRIC
;
8497 cmd
->ulpStatus
= IOSTAT_LOCAL_REJECT
;
8498 cmd
->un
.ulpWord
[4] = IOERR_SLI_ABORTED
;
8499 iocb
->iocb_cmpl(phba
, iocb
, iocb
);
8501 atomic_dec(&phba
->fabric_iocb_count
);
8510 * lpfc_unblock_fabric_iocbs - Unblock issuing fabric iocb command
8511 * @phba: pointer to lpfc hba data structure.
8513 * This routine unblocks the issuing fabric iocb command. The function
8514 * will clear the fabric iocb block bit and then invoke the routine
8515 * lpfc_resume_fabric_iocbs() to issue one of the pending fabric iocb
8516 * from the driver internal fabric iocb list.
8519 lpfc_unblock_fabric_iocbs(struct lpfc_hba
*phba
)
8521 clear_bit(FABRIC_COMANDS_BLOCKED
, &phba
->bit_flags
);
8523 lpfc_resume_fabric_iocbs(phba
);
8528 * lpfc_block_fabric_iocbs - Block issuing fabric iocb command
8529 * @phba: pointer to lpfc hba data structure.
8531 * This routine blocks the issuing fabric iocb for a specified amount of
8532 * time (currently 100 ms). This is done by set the fabric iocb block bit
8533 * and set up a timeout timer for 100ms. When the block bit is set, no more
8534 * fabric iocb will be issued out of the HBA.
8537 lpfc_block_fabric_iocbs(struct lpfc_hba
*phba
)
8541 blocked
= test_and_set_bit(FABRIC_COMANDS_BLOCKED
, &phba
->bit_flags
);
8542 /* Start a timer to unblock fabric iocbs after 100ms */
8544 mod_timer(&phba
->fabric_block_timer
,
8545 jiffies
+ msecs_to_jiffies(100));
8551 * lpfc_cmpl_fabric_iocb - Completion callback function for fabric iocb
8552 * @phba: pointer to lpfc hba data structure.
8553 * @cmdiocb: pointer to lpfc command iocb data structure.
8554 * @rspiocb: pointer to lpfc response iocb data structure.
8556 * This routine is the callback function that is put to the fabric iocb's
8557 * callback function pointer (iocb->iocb_cmpl). The original iocb's callback
8558 * function pointer has been stored in iocb->fabric_iocb_cmpl. This callback
8559 * function first restores and invokes the original iocb's callback function
8560 * and then invokes the lpfc_resume_fabric_iocbs() routine to issue the next
8561 * fabric bound iocb from the driver internal fabric iocb list onto the wire.
8564 lpfc_cmpl_fabric_iocb(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
8565 struct lpfc_iocbq
*rspiocb
)
8569 if ((cmdiocb
->iocb_flag
& LPFC_IO_FABRIC
) != LPFC_IO_FABRIC
)
8572 switch (rspiocb
->iocb
.ulpStatus
) {
8573 case IOSTAT_NPORT_RJT
:
8574 case IOSTAT_FABRIC_RJT
:
8575 if (rspiocb
->iocb
.un
.ulpWord
[4] & RJT_UNAVAIL_TEMP
) {
8576 lpfc_block_fabric_iocbs(phba
);
8580 case IOSTAT_NPORT_BSY
:
8581 case IOSTAT_FABRIC_BSY
:
8582 lpfc_block_fabric_iocbs(phba
);
8586 stat
.un
.lsRjtError
=
8587 be32_to_cpu(rspiocb
->iocb
.un
.ulpWord
[4]);
8588 if ((stat
.un
.b
.lsRjtRsnCode
== LSRJT_UNABLE_TPC
) ||
8589 (stat
.un
.b
.lsRjtRsnCode
== LSRJT_LOGICAL_BSY
))
8590 lpfc_block_fabric_iocbs(phba
);
8594 if (atomic_read(&phba
->fabric_iocb_count
) == 0)
8597 cmdiocb
->iocb_cmpl
= cmdiocb
->fabric_iocb_cmpl
;
8598 cmdiocb
->fabric_iocb_cmpl
= NULL
;
8599 cmdiocb
->iocb_flag
&= ~LPFC_IO_FABRIC
;
8600 cmdiocb
->iocb_cmpl(phba
, cmdiocb
, rspiocb
);
8602 atomic_dec(&phba
->fabric_iocb_count
);
8603 if (!test_bit(FABRIC_COMANDS_BLOCKED
, &phba
->bit_flags
)) {
8604 /* Post any pending iocbs to HBA */
8605 lpfc_resume_fabric_iocbs(phba
);
8610 * lpfc_issue_fabric_iocb - Issue a fabric iocb command
8611 * @phba: pointer to lpfc hba data structure.
8612 * @iocb: pointer to lpfc command iocb data structure.
8614 * This routine is used as the top-level API for issuing a fabric iocb command
8615 * such as FLOGI and FDISC. To accommodate certain switch fabric, this driver
8616 * function makes sure that only one fabric bound iocb will be outstanding at
8617 * any given time. As such, this function will first check to see whether there
8618 * is already an outstanding fabric iocb on the wire. If so, it will put the
8619 * newly issued iocb onto the driver internal fabric iocb list, waiting to be
8620 * issued later. Otherwise, it will issue the iocb on the wire and update the
8621 * fabric iocb count it indicate that there is one fabric iocb on the wire.
8623 * Note, this implementation has a potential sending out fabric IOCBs out of
8624 * order. The problem is caused by the construction of the "ready" boolen does
8625 * not include the condition that the internal fabric IOCB list is empty. As
8626 * such, it is possible a fabric IOCB issued by this routine might be "jump"
8627 * ahead of the fabric IOCBs in the internal list.
8630 * IOCB_SUCCESS - either fabric iocb put on the list or issued successfully
8631 * IOCB_ERROR - failed to issue fabric iocb
8634 lpfc_issue_fabric_iocb(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocb
)
8636 unsigned long iflags
;
8640 if (atomic_read(&phba
->fabric_iocb_count
) > 1)
8643 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8644 ready
= atomic_read(&phba
->fabric_iocb_count
) == 0 &&
8645 !test_bit(FABRIC_COMANDS_BLOCKED
, &phba
->bit_flags
);
8648 /* Increment fabric iocb count to hold the position */
8649 atomic_inc(&phba
->fabric_iocb_count
);
8650 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8652 iocb
->fabric_iocb_cmpl
= iocb
->iocb_cmpl
;
8653 iocb
->iocb_cmpl
= lpfc_cmpl_fabric_iocb
;
8654 iocb
->iocb_flag
|= LPFC_IO_FABRIC
;
8656 lpfc_debugfs_disc_trc(iocb
->vport
, LPFC_DISC_TRC_ELS_CMD
,
8657 "Fabric sched2: ste:x%x",
8658 iocb
->vport
->port_state
, 0, 0);
8660 ret
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, iocb
, 0);
8662 if (ret
== IOCB_ERROR
) {
8663 iocb
->iocb_cmpl
= iocb
->fabric_iocb_cmpl
;
8664 iocb
->fabric_iocb_cmpl
= NULL
;
8665 iocb
->iocb_flag
&= ~LPFC_IO_FABRIC
;
8666 atomic_dec(&phba
->fabric_iocb_count
);
8669 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8670 list_add_tail(&iocb
->list
, &phba
->fabric_iocb_list
);
8671 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8678 * lpfc_fabric_abort_vport - Abort a vport's iocbs from driver fabric iocb list
8679 * @vport: pointer to a virtual N_Port data structure.
8681 * This routine aborts all the IOCBs associated with a @vport from the
8682 * driver internal fabric IOCB list. The list contains fabric IOCBs to be
8683 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB
8684 * list, removes each IOCB associated with the @vport off the list, set the
8685 * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function
8686 * associated with the IOCB.
8688 static void lpfc_fabric_abort_vport(struct lpfc_vport
*vport
)
8690 LIST_HEAD(completions
);
8691 struct lpfc_hba
*phba
= vport
->phba
;
8692 struct lpfc_iocbq
*tmp_iocb
, *piocb
;
8694 spin_lock_irq(&phba
->hbalock
);
8695 list_for_each_entry_safe(piocb
, tmp_iocb
, &phba
->fabric_iocb_list
,
8698 if (piocb
->vport
!= vport
)
8701 list_move_tail(&piocb
->list
, &completions
);
8703 spin_unlock_irq(&phba
->hbalock
);
8705 /* Cancel all the IOCBs from the completions list */
8706 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
8711 * lpfc_fabric_abort_nport - Abort a ndlp's iocbs from driver fabric iocb list
8712 * @ndlp: pointer to a node-list data structure.
8714 * This routine aborts all the IOCBs associated with an @ndlp from the
8715 * driver internal fabric IOCB list. The list contains fabric IOCBs to be
8716 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB
8717 * list, removes each IOCB associated with the @ndlp off the list, set the
8718 * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function
8719 * associated with the IOCB.
8721 void lpfc_fabric_abort_nport(struct lpfc_nodelist
*ndlp
)
8723 LIST_HEAD(completions
);
8724 struct lpfc_hba
*phba
= ndlp
->phba
;
8725 struct lpfc_iocbq
*tmp_iocb
, *piocb
;
8726 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
8728 spin_lock_irq(&phba
->hbalock
);
8729 list_for_each_entry_safe(piocb
, tmp_iocb
, &phba
->fabric_iocb_list
,
8731 if ((lpfc_check_sli_ndlp(phba
, pring
, piocb
, ndlp
))) {
8733 list_move_tail(&piocb
->list
, &completions
);
8736 spin_unlock_irq(&phba
->hbalock
);
8738 /* Cancel all the IOCBs from the completions list */
8739 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
8744 * lpfc_fabric_abort_hba - Abort all iocbs on driver fabric iocb list
8745 * @phba: pointer to lpfc hba data structure.
8747 * This routine aborts all the IOCBs currently on the driver internal
8748 * fabric IOCB list. The list contains fabric IOCBs to be issued to the ELS
8749 * IOCB ring. This function takes the entire IOCB list off the fabric IOCB
8750 * list, removes IOCBs off the list, set the status feild to
8751 * IOSTAT_LOCAL_REJECT, and invokes the callback function associated with
8754 void lpfc_fabric_abort_hba(struct lpfc_hba
*phba
)
8756 LIST_HEAD(completions
);
8758 spin_lock_irq(&phba
->hbalock
);
8759 list_splice_init(&phba
->fabric_iocb_list
, &completions
);
8760 spin_unlock_irq(&phba
->hbalock
);
8762 /* Cancel all the IOCBs from the completions list */
8763 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
8768 * lpfc_sli4_vport_delete_els_xri_aborted -Remove all ndlp references for vport
8769 * @vport: pointer to lpfc vport data structure.
8771 * This routine is invoked by the vport cleanup for deletions and the cleanup
8772 * for an ndlp on removal.
8775 lpfc_sli4_vport_delete_els_xri_aborted(struct lpfc_vport
*vport
)
8777 struct lpfc_hba
*phba
= vport
->phba
;
8778 struct lpfc_sglq
*sglq_entry
= NULL
, *sglq_next
= NULL
;
8779 unsigned long iflag
= 0;
8781 spin_lock_irqsave(&phba
->hbalock
, iflag
);
8782 spin_lock(&phba
->sli4_hba
.abts_sgl_list_lock
);
8783 list_for_each_entry_safe(sglq_entry
, sglq_next
,
8784 &phba
->sli4_hba
.lpfc_abts_els_sgl_list
, list
) {
8785 if (sglq_entry
->ndlp
&& sglq_entry
->ndlp
->vport
== vport
)
8786 sglq_entry
->ndlp
= NULL
;
8788 spin_unlock(&phba
->sli4_hba
.abts_sgl_list_lock
);
8789 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8794 * lpfc_sli4_els_xri_aborted - Slow-path process of els xri abort
8795 * @phba: pointer to lpfc hba data structure.
8796 * @axri: pointer to the els xri abort wcqe structure.
8798 * This routine is invoked by the worker thread to process a SLI4 slow-path
8802 lpfc_sli4_els_xri_aborted(struct lpfc_hba
*phba
,
8803 struct sli4_wcqe_xri_aborted
*axri
)
8805 uint16_t xri
= bf_get(lpfc_wcqe_xa_xri
, axri
);
8806 uint16_t rxid
= bf_get(lpfc_wcqe_xa_remote_xid
, axri
);
8809 struct lpfc_sglq
*sglq_entry
= NULL
, *sglq_next
= NULL
;
8810 unsigned long iflag
= 0;
8811 struct lpfc_nodelist
*ndlp
;
8812 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
8814 spin_lock_irqsave(&phba
->hbalock
, iflag
);
8815 spin_lock(&phba
->sli4_hba
.abts_sgl_list_lock
);
8816 list_for_each_entry_safe(sglq_entry
, sglq_next
,
8817 &phba
->sli4_hba
.lpfc_abts_els_sgl_list
, list
) {
8818 if (sglq_entry
->sli4_xritag
== xri
) {
8819 list_del(&sglq_entry
->list
);
8820 ndlp
= sglq_entry
->ndlp
;
8821 sglq_entry
->ndlp
= NULL
;
8822 spin_lock(&pring
->ring_lock
);
8823 list_add_tail(&sglq_entry
->list
,
8824 &phba
->sli4_hba
.lpfc_sgl_list
);
8825 sglq_entry
->state
= SGL_FREED
;
8826 spin_unlock(&pring
->ring_lock
);
8827 spin_unlock(&phba
->sli4_hba
.abts_sgl_list_lock
);
8828 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8829 lpfc_set_rrq_active(phba
, ndlp
,
8830 sglq_entry
->sli4_lxritag
,
8833 /* Check if TXQ queue needs to be serviced */
8834 if (!(list_empty(&pring
->txq
)))
8835 lpfc_worker_wake_up(phba
);
8839 spin_unlock(&phba
->sli4_hba
.abts_sgl_list_lock
);
8840 lxri
= lpfc_sli4_xri_inrange(phba
, xri
);
8841 if (lxri
== NO_XRI
) {
8842 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8845 spin_lock(&pring
->ring_lock
);
8846 sglq_entry
= __lpfc_get_active_sglq(phba
, lxri
);
8847 if (!sglq_entry
|| (sglq_entry
->sli4_xritag
!= xri
)) {
8848 spin_unlock(&pring
->ring_lock
);
8849 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8852 sglq_entry
->state
= SGL_XRI_ABORTED
;
8853 spin_unlock(&pring
->ring_lock
);
8854 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8858 /* lpfc_sli_abts_recover_port - Recover a port that failed a BLS_ABORT req.
8859 * @vport: pointer to virtual port object.
8860 * @ndlp: nodelist pointer for the impacted node.
8862 * The driver calls this routine in response to an SLI4 XRI ABORT CQE
8863 * or an SLI3 ASYNC_STATUS_CN event from the port. For either event,
8864 * the driver is required to send a LOGO to the remote node before it
8865 * attempts to recover its login to the remote node.
8868 lpfc_sli_abts_recover_port(struct lpfc_vport
*vport
,
8869 struct lpfc_nodelist
*ndlp
)
8871 struct Scsi_Host
*shost
;
8872 struct lpfc_hba
*phba
;
8873 unsigned long flags
= 0;
8875 shost
= lpfc_shost_from_vport(vport
);
8877 if (ndlp
->nlp_state
!= NLP_STE_MAPPED_NODE
) {
8878 lpfc_printf_log(phba
, KERN_INFO
,
8879 LOG_SLI
, "3093 No rport recovery needed. "
8880 "rport in state 0x%x\n", ndlp
->nlp_state
);
8883 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
8884 "3094 Start rport recovery on shost id 0x%x "
8885 "fc_id 0x%06x vpi 0x%x rpi 0x%x state 0x%x "
8887 shost
->host_no
, ndlp
->nlp_DID
,
8888 vport
->vpi
, ndlp
->nlp_rpi
, ndlp
->nlp_state
,
8891 * The rport is not responding. Remove the FCP-2 flag to prevent
8892 * an ADISC in the follow-up recovery code.
8894 spin_lock_irqsave(shost
->host_lock
, flags
);
8895 ndlp
->nlp_fcp_info
&= ~NLP_FCP_2_DEVICE
;
8896 spin_unlock_irqrestore(shost
->host_lock
, flags
);
8897 lpfc_issue_els_logo(vport
, ndlp
, 0);
8898 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_LOGO_ISSUE
);