1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2014 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
;
459 struct lpfc_nodelist
*ndlp
;
460 struct serv_parm
*sp
;
461 struct lpfc_dmabuf
*dmabuf
;
464 sp
= &phba
->fc_fabparam
;
465 /* move forward in case of SLI4 FC port loopback test and pt2pt mode */
466 if ((phba
->sli_rev
== LPFC_SLI_REV4
) &&
467 !(phba
->link_flag
& LS_LOOPBACK_MODE
) &&
468 !(vport
->fc_flag
& FC_PT2PT
)) {
469 ndlp
= lpfc_findnode_did(vport
, Fabric_DID
);
470 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
)) {
476 dmabuf
= kzalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
481 dmabuf
->virt
= lpfc_mbuf_alloc(phba
, MEM_PRI
, &dmabuf
->phys
);
484 goto fail_free_dmabuf
;
487 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
490 goto fail_free_coherent
;
492 vport
->port_state
= LPFC_FABRIC_CFG_LINK
;
493 memcpy(dmabuf
->virt
, &phba
->fc_fabparam
, sizeof(vport
->fc_sparam
));
494 lpfc_reg_vfi(mboxq
, vport
, dmabuf
->phys
);
496 mboxq
->mbox_cmpl
= lpfc_mbx_cmpl_reg_vfi
;
497 mboxq
->vport
= vport
;
498 mboxq
->context1
= dmabuf
;
499 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
500 if (rc
== MBX_NOT_FINISHED
) {
507 mempool_free(mboxq
, phba
->mbox_mem_pool
);
509 lpfc_mbuf_free(phba
, dmabuf
->virt
, dmabuf
->phys
);
513 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
514 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
515 "0289 Issue Register VFI failed: Err %d\n", rc
);
520 * lpfc_issue_unreg_vfi - Unregister VFI for this vport's fabric login
521 * @vport: pointer to a host virtual N_Port data structure.
523 * This routine issues a UNREG_VFI mailbox with the vfi, vpi, fcfi triplet for
524 * the @vport. This mailbox command is necessary for SLI4 port only.
527 * 0 - successfully issued REG_VFI for @vport
528 * A failure code otherwise.
531 lpfc_issue_unreg_vfi(struct lpfc_vport
*vport
)
533 struct lpfc_hba
*phba
= vport
->phba
;
534 struct Scsi_Host
*shost
;
538 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
540 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
|LOG_MBOX
,
541 "2556 UNREG_VFI mbox allocation failed"
542 "HBA state x%x\n", phba
->pport
->port_state
);
546 lpfc_unreg_vfi(mboxq
, vport
);
547 mboxq
->vport
= vport
;
548 mboxq
->mbox_cmpl
= lpfc_unregister_vfi_cmpl
;
550 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
551 if (rc
== MBX_NOT_FINISHED
) {
552 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
|LOG_MBOX
,
553 "2557 UNREG_VFI issue mbox failed rc x%x "
555 rc
, phba
->pport
->port_state
);
556 mempool_free(mboxq
, phba
->mbox_mem_pool
);
560 shost
= lpfc_shost_from_vport(vport
);
561 spin_lock_irq(shost
->host_lock
);
562 vport
->fc_flag
&= ~FC_VFI_REGISTERED
;
563 spin_unlock_irq(shost
->host_lock
);
568 * lpfc_check_clean_addr_bit - Check whether assigned FCID is clean.
569 * @vport: pointer to a host virtual N_Port data structure.
570 * @sp: pointer to service parameter data structure.
572 * This routine is called from FLOGI/FDISC completion handler functions.
573 * lpfc_check_clean_addr_bit return 1 when FCID/Fabric portname/ Fabric
574 * node nodename is changed in the completion service parameter else return
575 * 0. This function also set flag in the vport data structure to delay
576 * NP_Port discovery after the FLOGI/FDISC completion if Clean address bit
577 * in FLOGI/FDISC response is cleared and FCID/Fabric portname/ Fabric
578 * node nodename is changed in the completion service parameter.
581 * 0 - FCID and Fabric Nodename and Fabric portname is not changed.
582 * 1 - FCID or Fabric Nodename or Fabric portname is changed.
586 lpfc_check_clean_addr_bit(struct lpfc_vport
*vport
,
587 struct serv_parm
*sp
)
589 uint8_t fabric_param_changed
= 0;
590 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
592 if ((vport
->fc_prevDID
!= vport
->fc_myDID
) ||
593 memcmp(&vport
->fabric_portname
, &sp
->portName
,
594 sizeof(struct lpfc_name
)) ||
595 memcmp(&vport
->fabric_nodename
, &sp
->nodeName
,
596 sizeof(struct lpfc_name
)))
597 fabric_param_changed
= 1;
600 * Word 1 Bit 31 in common service parameter is overloaded.
601 * Word 1 Bit 31 in FLOGI request is multiple NPort request
602 * Word 1 Bit 31 in FLOGI response is clean address bit
604 * If fabric parameter is changed and clean address bit is
605 * cleared delay nport discovery if
606 * - vport->fc_prevDID != 0 (not initial discovery) OR
607 * - lpfc_delay_discovery module parameter is set.
609 if (fabric_param_changed
&& !sp
->cmn
.clean_address_bit
&&
610 (vport
->fc_prevDID
|| lpfc_delay_discovery
)) {
611 spin_lock_irq(shost
->host_lock
);
612 vport
->fc_flag
|= FC_DISC_DELAYED
;
613 spin_unlock_irq(shost
->host_lock
);
616 return fabric_param_changed
;
621 * lpfc_cmpl_els_flogi_fabric - Completion function for flogi to a fabric port
622 * @vport: pointer to a host virtual N_Port data structure.
623 * @ndlp: pointer to a node-list data structure.
624 * @sp: pointer to service parameter data structure.
625 * @irsp: pointer to the IOCB within the lpfc response IOCB.
627 * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback
628 * function to handle the completion of a Fabric Login (FLOGI) into a fabric
629 * port in a fabric topology. It properly sets up the parameters to the @ndlp
630 * from the IOCB response. It also check the newly assigned N_Port ID to the
631 * @vport against the previously assigned N_Port ID. If it is different from
632 * the previously assigned Destination ID (DID), the lpfc_unreg_rpi() routine
633 * is invoked on all the remaining nodes with the @vport to unregister the
634 * Remote Port Indicators (RPIs). Finally, the lpfc_issue_fabric_reglogin()
635 * is invoked to register login to the fabric.
638 * 0 - Success (currently, always return 0)
641 lpfc_cmpl_els_flogi_fabric(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
642 struct serv_parm
*sp
, IOCB_t
*irsp
)
644 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
645 struct lpfc_hba
*phba
= vport
->phba
;
646 struct lpfc_nodelist
*np
;
647 struct lpfc_nodelist
*next_np
;
648 uint8_t fabric_param_changed
;
650 spin_lock_irq(shost
->host_lock
);
651 vport
->fc_flag
|= FC_FABRIC
;
652 spin_unlock_irq(shost
->host_lock
);
654 phba
->fc_edtov
= be32_to_cpu(sp
->cmn
.e_d_tov
);
655 if (sp
->cmn
.edtovResolution
) /* E_D_TOV ticks are in nanoseconds */
656 phba
->fc_edtov
= (phba
->fc_edtov
+ 999999) / 1000000;
658 phba
->fc_edtovResol
= sp
->cmn
.edtovResolution
;
659 phba
->fc_ratov
= (be32_to_cpu(sp
->cmn
.w2
.r_a_tov
) + 999) / 1000;
661 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
662 spin_lock_irq(shost
->host_lock
);
663 vport
->fc_flag
|= FC_PUBLIC_LOOP
;
664 spin_unlock_irq(shost
->host_lock
);
667 vport
->fc_myDID
= irsp
->un
.ulpWord
[4] & Mask_DID
;
668 memcpy(&ndlp
->nlp_portname
, &sp
->portName
, sizeof(struct lpfc_name
));
669 memcpy(&ndlp
->nlp_nodename
, &sp
->nodeName
, sizeof(struct lpfc_name
));
670 ndlp
->nlp_class_sup
= 0;
671 if (sp
->cls1
.classValid
)
672 ndlp
->nlp_class_sup
|= FC_COS_CLASS1
;
673 if (sp
->cls2
.classValid
)
674 ndlp
->nlp_class_sup
|= FC_COS_CLASS2
;
675 if (sp
->cls3
.classValid
)
676 ndlp
->nlp_class_sup
|= FC_COS_CLASS3
;
677 if (sp
->cls4
.classValid
)
678 ndlp
->nlp_class_sup
|= FC_COS_CLASS4
;
679 ndlp
->nlp_maxframe
= ((sp
->cmn
.bbRcvSizeMsb
& 0x0F) << 8) |
680 sp
->cmn
.bbRcvSizeLsb
;
682 fabric_param_changed
= lpfc_check_clean_addr_bit(vport
, sp
);
683 memcpy(&vport
->fabric_portname
, &sp
->portName
,
684 sizeof(struct lpfc_name
));
685 memcpy(&vport
->fabric_nodename
, &sp
->nodeName
,
686 sizeof(struct lpfc_name
));
687 memcpy(&phba
->fc_fabparam
, sp
, sizeof(struct serv_parm
));
689 if (phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) {
690 if (sp
->cmn
.response_multiple_NPort
) {
691 lpfc_printf_vlog(vport
, KERN_WARNING
,
693 "1816 FLOGI NPIV supported, "
694 "response data 0x%x\n",
695 sp
->cmn
.response_multiple_NPort
);
696 spin_lock_irq(&phba
->hbalock
);
697 phba
->link_flag
|= LS_NPIV_FAB_SUPPORTED
;
698 spin_unlock_irq(&phba
->hbalock
);
700 /* Because we asked f/w for NPIV it still expects us
701 to call reg_vnpid atleast for the physcial host */
702 lpfc_printf_vlog(vport
, KERN_WARNING
,
704 "1817 Fabric does not support NPIV "
705 "- configuring single port mode.\n");
706 spin_lock_irq(&phba
->hbalock
);
707 phba
->link_flag
&= ~LS_NPIV_FAB_SUPPORTED
;
708 spin_unlock_irq(&phba
->hbalock
);
713 * For FC we need to do some special processing because of the SLI
714 * Port's default settings of the Common Service Parameters.
716 if (phba
->sli4_hba
.lnk_info
.lnk_tp
== LPFC_LNK_TYPE_FC
) {
717 /* If physical FC port changed, unreg VFI and ALL VPIs / RPIs */
718 if ((phba
->sli_rev
== LPFC_SLI_REV4
) && fabric_param_changed
)
719 lpfc_unregister_fcf_prep(phba
);
721 /* This should just update the VFI CSPs*/
722 if (vport
->fc_flag
& FC_VFI_REGISTERED
)
723 lpfc_issue_reg_vfi(vport
);
726 if (fabric_param_changed
&&
727 !(vport
->fc_flag
& FC_VPORT_NEEDS_REG_VPI
)) {
729 /* If our NportID changed, we need to ensure all
730 * remaining NPORTs get unreg_login'ed.
732 list_for_each_entry_safe(np
, next_np
,
733 &vport
->fc_nodes
, nlp_listp
) {
734 if (!NLP_CHK_NODE_ACT(np
))
736 if ((np
->nlp_state
!= NLP_STE_NPR_NODE
) ||
737 !(np
->nlp_flag
& NLP_NPR_ADISC
))
739 spin_lock_irq(shost
->host_lock
);
740 np
->nlp_flag
&= ~NLP_NPR_ADISC
;
741 spin_unlock_irq(shost
->host_lock
);
742 lpfc_unreg_rpi(vport
, np
);
744 lpfc_cleanup_pending_mbox(vport
);
746 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
747 lpfc_sli4_unreg_all_rpis(vport
);
748 lpfc_mbx_unreg_vpi(vport
);
749 spin_lock_irq(shost
->host_lock
);
750 vport
->fc_flag
|= FC_VPORT_NEEDS_INIT_VPI
;
751 spin_unlock_irq(shost
->host_lock
);
755 * For SLI3 and SLI4, the VPI needs to be reregistered in
756 * response to this fabric parameter change event.
758 spin_lock_irq(shost
->host_lock
);
759 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
760 spin_unlock_irq(shost
->host_lock
);
761 } else if ((phba
->sli_rev
== LPFC_SLI_REV4
) &&
762 !(vport
->fc_flag
& FC_VPORT_NEEDS_REG_VPI
)) {
764 * Driver needs to re-reg VPI in order for f/w
765 * to update the MAC address.
767 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_UNMAPPED_NODE
);
768 lpfc_register_new_vport(phba
, vport
, ndlp
);
772 if (phba
->sli_rev
< LPFC_SLI_REV4
) {
773 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_REG_LOGIN_ISSUE
);
774 if (phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
&&
775 vport
->fc_flag
& FC_VPORT_NEEDS_REG_VPI
)
776 lpfc_register_new_vport(phba
, vport
, ndlp
);
778 lpfc_issue_fabric_reglogin(vport
);
780 ndlp
->nlp_type
|= NLP_FABRIC
;
781 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_UNMAPPED_NODE
);
782 if ((!(vport
->fc_flag
& FC_VPORT_NEEDS_REG_VPI
)) &&
783 (vport
->vpi_state
& LPFC_VPI_REGISTERED
)) {
784 lpfc_start_fdiscs(phba
);
785 lpfc_do_scr_ns_plogi(phba
, vport
);
786 } else if (vport
->fc_flag
& FC_VFI_REGISTERED
)
787 lpfc_issue_init_vpi(vport
);
789 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
790 "3135 Need register VFI: (x%x/%x)\n",
791 vport
->fc_prevDID
, vport
->fc_myDID
);
792 lpfc_issue_reg_vfi(vport
);
799 * lpfc_cmpl_els_flogi_nport - Completion function for flogi to an N_Port
800 * @vport: pointer to a host virtual N_Port data structure.
801 * @ndlp: pointer to a node-list data structure.
802 * @sp: pointer to service parameter data structure.
804 * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback
805 * function to handle the completion of a Fabric Login (FLOGI) into an N_Port
806 * in a point-to-point topology. First, the @vport's N_Port Name is compared
807 * with the received N_Port Name: if the @vport's N_Port Name is greater than
808 * the received N_Port Name lexicographically, this node shall assign local
809 * N_Port ID (PT2PT_LocalID: 1) and remote N_Port ID (PT2PT_RemoteID: 2) and
810 * will send out Port Login (PLOGI) with the N_Port IDs assigned. Otherwise,
811 * this node shall just wait for the remote node to issue PLOGI and assign
819 lpfc_cmpl_els_flogi_nport(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
820 struct serv_parm
*sp
)
822 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
823 struct lpfc_hba
*phba
= vport
->phba
;
827 spin_lock_irq(shost
->host_lock
);
828 vport
->fc_flag
&= ~(FC_FABRIC
| FC_PUBLIC_LOOP
);
829 spin_unlock_irq(shost
->host_lock
);
831 phba
->fc_edtov
= FF_DEF_EDTOV
;
832 phba
->fc_ratov
= FF_DEF_RATOV
;
833 rc
= memcmp(&vport
->fc_portname
, &sp
->portName
,
834 sizeof(vport
->fc_portname
));
835 memcpy(&phba
->fc_fabparam
, sp
, sizeof(struct serv_parm
));
838 /* This side will initiate the PLOGI */
839 spin_lock_irq(shost
->host_lock
);
840 vport
->fc_flag
|= FC_PT2PT_PLOGI
;
841 spin_unlock_irq(shost
->host_lock
);
844 * N_Port ID cannot be 0, set our to LocalID the other
845 * side will be RemoteID.
850 vport
->fc_myDID
= PT2PT_LocalID
;
852 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
856 lpfc_config_link(phba
, mbox
);
858 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
860 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
861 if (rc
== MBX_NOT_FINISHED
) {
862 mempool_free(mbox
, phba
->mbox_mem_pool
);
867 * For SLI4, the VFI/VPI are registered AFTER the
868 * Nport with the higher WWPN sends the PLOGI with
869 * an assigned NPortId.
873 if ((phba
->sli_rev
== LPFC_SLI_REV4
) && rc
)
874 lpfc_issue_reg_vfi(vport
);
876 /* Decrement ndlp reference count indicating that ndlp can be
877 * safely released when other references to it are done.
881 ndlp
= lpfc_findnode_did(vport
, PT2PT_RemoteID
);
884 * Cannot find existing Fabric ndlp, so allocate a
887 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
890 lpfc_nlp_init(vport
, ndlp
, PT2PT_RemoteID
);
891 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
892 ndlp
= lpfc_enable_node(vport
, ndlp
,
893 NLP_STE_UNUSED_NODE
);
898 memcpy(&ndlp
->nlp_portname
, &sp
->portName
,
899 sizeof(struct lpfc_name
));
900 memcpy(&ndlp
->nlp_nodename
, &sp
->nodeName
,
901 sizeof(struct lpfc_name
));
902 /* Set state will put ndlp onto node list if not already done */
903 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
904 spin_lock_irq(shost
->host_lock
);
905 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
906 spin_unlock_irq(shost
->host_lock
);
908 /* This side will wait for the PLOGI, decrement ndlp reference
909 * count indicating that ndlp can be released when other
910 * references to it are done.
914 /* If we are pt2pt with another NPort, force NPIV off! */
915 phba
->sli3_options
&= ~LPFC_SLI3_NPIV_ENABLED
;
917 spin_lock_irq(shost
->host_lock
);
918 vport
->fc_flag
|= FC_PT2PT
;
919 spin_unlock_irq(shost
->host_lock
);
920 /* If physical FC port changed, unreg VFI and ALL VPIs / RPIs */
921 if ((phba
->sli_rev
== LPFC_SLI_REV4
) && phba
->fc_topology_changed
) {
922 lpfc_unregister_fcf_prep(phba
);
924 /* The FC_VFI_REGISTERED flag will get clear in the cmpl
925 * handler for unreg_vfi, but if we don't force the
926 * FC_VFI_REGISTERED flag then the reg_vfi mailbox could be
927 * built with the update bit set instead of just the vp bit to
928 * change the Nport ID. We need to have the vp set and the
929 * Upd cleared on topology changes.
931 spin_lock_irq(shost
->host_lock
);
932 vport
->fc_flag
&= ~FC_VFI_REGISTERED
;
933 spin_unlock_irq(shost
->host_lock
);
934 phba
->fc_topology_changed
= 0;
935 lpfc_issue_reg_vfi(vport
);
938 /* Start discovery - this should just do CLEAR_LA */
939 lpfc_disc_start(vport
);
946 * lpfc_cmpl_els_flogi - Completion callback function for flogi
947 * @phba: pointer to lpfc hba data structure.
948 * @cmdiocb: pointer to lpfc command iocb data structure.
949 * @rspiocb: pointer to lpfc response iocb data structure.
951 * This routine is the top-level completion callback function for issuing
952 * a Fabric Login (FLOGI) command. If the response IOCB reported error,
953 * the lpfc_els_retry() routine shall be invoked to retry the FLOGI. If
954 * retry has been made (either immediately or delayed with lpfc_els_retry()
955 * returning 1), the command IOCB will be released and function returned.
956 * If the retry attempt has been given up (possibly reach the maximum
957 * number of retries), one additional decrement of ndlp reference shall be
958 * invoked before going out after releasing the command IOCB. This will
959 * actually release the remote node (Note, lpfc_els_free_iocb() will also
960 * invoke one decrement of ndlp reference count). If no error reported in
961 * the IOCB status, the command Port ID field is used to determine whether
962 * this is a point-to-point topology or a fabric topology: if the Port ID
963 * field is assigned, it is a fabric topology; otherwise, it is a
964 * point-to-point topology. The routine lpfc_cmpl_els_flogi_fabric() or
965 * lpfc_cmpl_els_flogi_nport() shall be invoked accordingly to handle the
966 * specific topology completion conditions.
969 lpfc_cmpl_els_flogi(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
970 struct lpfc_iocbq
*rspiocb
)
972 struct lpfc_vport
*vport
= cmdiocb
->vport
;
973 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
974 IOCB_t
*irsp
= &rspiocb
->iocb
;
975 struct lpfc_nodelist
*ndlp
= cmdiocb
->context1
;
976 struct lpfc_dmabuf
*pcmd
= cmdiocb
->context2
, *prsp
;
977 struct serv_parm
*sp
;
981 /* Check to see if link went down during discovery */
982 if (lpfc_els_chk_latt(vport
)) {
983 /* One additional decrement on node reference count to
984 * trigger the release of the node
990 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
991 "FLOGI cmpl: status:x%x/x%x state:x%x",
992 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
995 if (irsp
->ulpStatus
) {
997 * In case of FIP mode, perform roundrobin FCF failover
998 * due to new FCF discovery
1000 if ((phba
->hba_flag
& HBA_FIP_SUPPORT
) &&
1001 (phba
->fcf
.fcf_flag
& FCF_DISCOVERY
)) {
1002 if (phba
->link_state
< LPFC_LINK_UP
)
1003 goto stop_rr_fcf_flogi
;
1004 if ((phba
->fcoe_cvl_eventtag_attn
==
1005 phba
->fcoe_cvl_eventtag
) &&
1006 (irsp
->ulpStatus
== IOSTAT_LOCAL_REJECT
) &&
1007 ((irsp
->un
.ulpWord
[4] & IOERR_PARAM_MASK
) ==
1009 goto stop_rr_fcf_flogi
;
1011 phba
->fcoe_cvl_eventtag_attn
=
1012 phba
->fcoe_cvl_eventtag
;
1013 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
| LOG_ELS
,
1014 "2611 FLOGI failed on FCF (x%x), "
1015 "status:x%x/x%x, tmo:x%x, perform "
1016 "roundrobin FCF failover\n",
1017 phba
->fcf
.current_rec
.fcf_indx
,
1018 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
1020 lpfc_sli4_set_fcf_flogi_fail(phba
,
1021 phba
->fcf
.current_rec
.fcf_indx
);
1022 fcf_index
= lpfc_sli4_fcf_rr_next_index_get(phba
);
1023 rc
= lpfc_sli4_fcf_rr_next_proc(vport
, fcf_index
);
1030 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
1031 "2858 FLOGI failure Status:x%x/x%x TMO:x%x\n",
1032 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
1035 /* Check for retry */
1036 if (lpfc_els_retry(phba
, cmdiocb
, rspiocb
))
1040 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
1041 "0100 FLOGI failure Status:x%x/x%x TMO:x%x\n",
1042 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
1045 /* FLOGI failed, so there is no fabric */
1046 spin_lock_irq(shost
->host_lock
);
1047 vport
->fc_flag
&= ~(FC_FABRIC
| FC_PUBLIC_LOOP
);
1048 spin_unlock_irq(shost
->host_lock
);
1050 /* If private loop, then allow max outstanding els to be
1051 * LPFC_MAX_DISC_THREADS (32). Scanning in the case of no
1052 * alpa map would take too long otherwise.
1054 if (phba
->alpa_map
[0] == 0)
1055 vport
->cfg_discovery_threads
= LPFC_MAX_DISC_THREADS
;
1056 if ((phba
->sli_rev
== LPFC_SLI_REV4
) &&
1057 (!(vport
->fc_flag
& FC_VFI_REGISTERED
) ||
1058 (vport
->fc_prevDID
!= vport
->fc_myDID
) ||
1059 phba
->fc_topology_changed
)) {
1060 if (vport
->fc_flag
& FC_VFI_REGISTERED
) {
1061 if (phba
->fc_topology_changed
) {
1062 lpfc_unregister_fcf_prep(phba
);
1063 spin_lock_irq(shost
->host_lock
);
1064 vport
->fc_flag
&= ~FC_VFI_REGISTERED
;
1065 spin_unlock_irq(shost
->host_lock
);
1066 phba
->fc_topology_changed
= 0;
1068 lpfc_sli4_unreg_all_rpis(vport
);
1071 lpfc_issue_reg_vfi(vport
);
1077 spin_lock_irq(shost
->host_lock
);
1078 vport
->fc_flag
&= ~FC_VPORT_CVL_RCVD
;
1079 vport
->fc_flag
&= ~FC_VPORT_LOGO_RCVD
;
1080 spin_unlock_irq(shost
->host_lock
);
1083 * The FLogI succeeded. Sync the data for the CPU before
1086 prsp
= list_get_first(&pcmd
->list
, struct lpfc_dmabuf
, list
);
1089 sp
= prsp
->virt
+ sizeof(uint32_t);
1091 /* FLOGI completes successfully */
1092 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
1093 "0101 FLOGI completes successfully, I/O tag:x%x, "
1094 "Data: x%x x%x x%x x%x x%x x%x\n", cmdiocb
->iotag
,
1095 irsp
->un
.ulpWord
[4], sp
->cmn
.e_d_tov
,
1096 sp
->cmn
.w2
.r_a_tov
, sp
->cmn
.edtovResolution
,
1097 vport
->port_state
, vport
->fc_flag
);
1099 if (vport
->port_state
== LPFC_FLOGI
) {
1101 * If Common Service Parameters indicate Nport
1102 * we are point to point, if Fport we are Fabric.
1105 rc
= lpfc_cmpl_els_flogi_fabric(vport
, ndlp
, sp
, irsp
);
1106 else if (!(phba
->hba_flag
& HBA_FCOE_MODE
))
1107 rc
= lpfc_cmpl_els_flogi_nport(vport
, ndlp
, sp
);
1109 lpfc_printf_vlog(vport
, KERN_ERR
,
1111 "2831 FLOGI response with cleared Fabric "
1112 "bit fcf_index 0x%x "
1113 "Switch Name %02x%02x%02x%02x%02x%02x%02x%02x "
1115 "%02x%02x%02x%02x%02x%02x%02x%02x\n",
1116 phba
->fcf
.current_rec
.fcf_indx
,
1117 phba
->fcf
.current_rec
.switch_name
[0],
1118 phba
->fcf
.current_rec
.switch_name
[1],
1119 phba
->fcf
.current_rec
.switch_name
[2],
1120 phba
->fcf
.current_rec
.switch_name
[3],
1121 phba
->fcf
.current_rec
.switch_name
[4],
1122 phba
->fcf
.current_rec
.switch_name
[5],
1123 phba
->fcf
.current_rec
.switch_name
[6],
1124 phba
->fcf
.current_rec
.switch_name
[7],
1125 phba
->fcf
.current_rec
.fabric_name
[0],
1126 phba
->fcf
.current_rec
.fabric_name
[1],
1127 phba
->fcf
.current_rec
.fabric_name
[2],
1128 phba
->fcf
.current_rec
.fabric_name
[3],
1129 phba
->fcf
.current_rec
.fabric_name
[4],
1130 phba
->fcf
.current_rec
.fabric_name
[5],
1131 phba
->fcf
.current_rec
.fabric_name
[6],
1132 phba
->fcf
.current_rec
.fabric_name
[7]);
1134 spin_lock_irq(&phba
->hbalock
);
1135 phba
->fcf
.fcf_flag
&= ~FCF_DISCOVERY
;
1136 phba
->hba_flag
&= ~(FCF_RR_INPROG
| HBA_DEVLOSS_TMO
);
1137 spin_unlock_irq(&phba
->hbalock
);
1141 /* Mark the FCF discovery process done */
1142 if (phba
->hba_flag
& HBA_FIP_SUPPORT
)
1143 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_FIP
|
1145 "2769 FLOGI to FCF (x%x) "
1146 "completed successfully\n",
1147 phba
->fcf
.current_rec
.fcf_indx
);
1148 spin_lock_irq(&phba
->hbalock
);
1149 phba
->fcf
.fcf_flag
&= ~FCF_DISCOVERY
;
1150 phba
->hba_flag
&= ~(FCF_RR_INPROG
| HBA_DEVLOSS_TMO
);
1151 spin_unlock_irq(&phba
->hbalock
);
1159 if (!lpfc_error_lost_link(irsp
)) {
1160 /* FLOGI failed, so just use loop map to make discovery list */
1161 lpfc_disc_list_loopmap(vport
);
1163 /* Start discovery */
1164 lpfc_disc_start(vport
);
1165 } else if (((irsp
->ulpStatus
!= IOSTAT_LOCAL_REJECT
) ||
1166 (((irsp
->un
.ulpWord
[4] & IOERR_PARAM_MASK
) !=
1167 IOERR_SLI_ABORTED
) &&
1168 ((irsp
->un
.ulpWord
[4] & IOERR_PARAM_MASK
) !=
1169 IOERR_SLI_DOWN
))) &&
1170 (phba
->link_state
!= LPFC_CLEAR_LA
)) {
1171 /* If FLOGI failed enable link interrupt. */
1172 lpfc_issue_clear_la(phba
, vport
);
1175 lpfc_els_free_iocb(phba
, cmdiocb
);
1179 * lpfc_issue_els_flogi - Issue an flogi iocb command for a vport
1180 * @vport: pointer to a host virtual N_Port data structure.
1181 * @ndlp: pointer to a node-list data structure.
1182 * @retry: number of retries to the command IOCB.
1184 * This routine issues a Fabric Login (FLOGI) Request ELS command
1185 * for a @vport. The initiator service parameters are put into the payload
1186 * of the FLOGI Request IOCB and the top-level callback function pointer
1187 * to lpfc_cmpl_els_flogi() routine is put to the IOCB completion callback
1188 * function field. The lpfc_issue_fabric_iocb routine is invoked to send
1189 * out FLOGI ELS command with one outstanding fabric IOCB at a time.
1191 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
1192 * will be incremented by 1 for holding the ndlp and the reference to ndlp
1193 * will be stored into the context1 field of the IOCB for the completion
1194 * callback function to the FLOGI ELS command.
1197 * 0 - successfully issued flogi iocb for @vport
1198 * 1 - failed to issue flogi iocb for @vport
1201 lpfc_issue_els_flogi(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
1204 struct lpfc_hba
*phba
= vport
->phba
;
1205 struct serv_parm
*sp
;
1207 struct lpfc_iocbq
*elsiocb
;
1208 struct lpfc_sli_ring
*pring
;
1214 pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
1216 cmdsize
= (sizeof(uint32_t) + sizeof(struct serv_parm
));
1217 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
,
1218 ndlp
->nlp_DID
, ELS_CMD_FLOGI
);
1223 icmd
= &elsiocb
->iocb
;
1224 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
1226 /* For FLOGI request, remainder of payload is service parameters */
1227 *((uint32_t *) (pcmd
)) = ELS_CMD_FLOGI
;
1228 pcmd
+= sizeof(uint32_t);
1229 memcpy(pcmd
, &vport
->fc_sparam
, sizeof(struct serv_parm
));
1230 sp
= (struct serv_parm
*) pcmd
;
1232 /* Setup CSPs accordingly for Fabric */
1233 sp
->cmn
.e_d_tov
= 0;
1234 sp
->cmn
.w2
.r_a_tov
= 0;
1235 sp
->cmn
.virtual_fabric_support
= 0;
1236 sp
->cls1
.classValid
= 0;
1237 if (sp
->cmn
.fcphLow
< FC_PH3
)
1238 sp
->cmn
.fcphLow
= FC_PH3
;
1239 if (sp
->cmn
.fcphHigh
< FC_PH3
)
1240 sp
->cmn
.fcphHigh
= FC_PH3
;
1242 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
1243 if (bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
) ==
1244 LPFC_SLI_INTF_IF_TYPE_0
) {
1245 elsiocb
->iocb
.ulpCt_h
= ((SLI4_CT_FCFI
>> 1) & 1);
1246 elsiocb
->iocb
.ulpCt_l
= (SLI4_CT_FCFI
& 1);
1247 /* FLOGI needs to be 3 for WQE FCFI */
1248 /* Set the fcfi to the fcfi we registered with */
1249 elsiocb
->iocb
.ulpContext
= phba
->fcf
.fcfi
;
1251 /* Can't do SLI4 class2 without support sequence coalescing */
1252 sp
->cls2
.classValid
= 0;
1253 sp
->cls2
.seqDelivery
= 0;
1255 /* Historical, setting sequential-delivery bit for SLI3 */
1256 sp
->cls2
.seqDelivery
= (sp
->cls2
.classValid
) ? 1 : 0;
1257 sp
->cls3
.seqDelivery
= (sp
->cls3
.classValid
) ? 1 : 0;
1258 if (phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) {
1259 sp
->cmn
.request_multiple_Nport
= 1;
1260 /* For FLOGI, Let FLOGI rsp set the NPortID for VPI 0 */
1264 sp
->cmn
.request_multiple_Nport
= 0;
1267 if (phba
->fc_topology
!= LPFC_TOPOLOGY_LOOP
) {
1268 icmd
->un
.elsreq64
.myID
= 0;
1269 icmd
->un
.elsreq64
.fl
= 1;
1272 tmo
= phba
->fc_ratov
;
1273 phba
->fc_ratov
= LPFC_DISC_FLOGI_TMO
;
1274 lpfc_set_disctmo(vport
);
1275 phba
->fc_ratov
= tmo
;
1277 phba
->fc_stat
.elsXmitFLOGI
++;
1278 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_flogi
;
1280 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
1281 "Issue FLOGI: opt:x%x",
1282 phba
->sli3_options
, 0, 0);
1284 rc
= lpfc_issue_fabric_iocb(phba
, elsiocb
);
1285 if (rc
== IOCB_ERROR
) {
1286 lpfc_els_free_iocb(phba
, elsiocb
);
1293 * lpfc_els_abort_flogi - Abort all outstanding flogi iocbs
1294 * @phba: pointer to lpfc hba data structure.
1296 * This routine aborts all the outstanding Fabric Login (FLOGI) IOCBs
1297 * with a @phba. This routine walks all the outstanding IOCBs on the txcmplq
1298 * list and issues an abort IOCB commond on each outstanding IOCB that
1299 * contains a active Fabric_DID ndlp. Note that this function is to issue
1300 * the abort IOCB command on all the outstanding IOCBs, thus when this
1301 * function returns, it does not guarantee all the IOCBs are actually aborted.
1304 * 0 - Successfully issued abort iocb on all outstanding flogis (Always 0)
1307 lpfc_els_abort_flogi(struct lpfc_hba
*phba
)
1309 struct lpfc_sli_ring
*pring
;
1310 struct lpfc_iocbq
*iocb
, *next_iocb
;
1311 struct lpfc_nodelist
*ndlp
;
1314 /* Abort outstanding I/O on NPort <nlp_DID> */
1315 lpfc_printf_log(phba
, KERN_INFO
, LOG_DISCOVERY
,
1316 "0201 Abort outstanding I/O on NPort x%x\n",
1319 pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
1322 * Check the txcmplq for an iocb that matches the nport the driver is
1325 spin_lock_irq(&phba
->hbalock
);
1326 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txcmplq
, list
) {
1328 if (icmd
->ulpCommand
== CMD_ELS_REQUEST64_CR
) {
1329 ndlp
= (struct lpfc_nodelist
*)(iocb
->context1
);
1330 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
) &&
1331 (ndlp
->nlp_DID
== Fabric_DID
))
1332 lpfc_sli_issue_abort_iotag(phba
, pring
, iocb
);
1335 spin_unlock_irq(&phba
->hbalock
);
1341 * lpfc_initial_flogi - Issue an initial fabric login for a vport
1342 * @vport: pointer to a host virtual N_Port data structure.
1344 * This routine issues an initial Fabric Login (FLOGI) for the @vport
1345 * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from
1346 * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and
1347 * put it into the @vport's ndlp list. If an inactive ndlp found on the list,
1348 * it will just be enabled and made active. The lpfc_issue_els_flogi() routine
1349 * is then invoked with the @vport and the ndlp to perform the FLOGI for the
1353 * 0 - failed to issue initial flogi for @vport
1354 * 1 - successfully issued initial flogi for @vport
1357 lpfc_initial_flogi(struct lpfc_vport
*vport
)
1359 struct lpfc_hba
*phba
= vport
->phba
;
1360 struct lpfc_nodelist
*ndlp
;
1362 vport
->port_state
= LPFC_FLOGI
;
1363 lpfc_set_disctmo(vport
);
1365 /* First look for the Fabric ndlp */
1366 ndlp
= lpfc_findnode_did(vport
, Fabric_DID
);
1368 /* Cannot find existing Fabric ndlp, so allocate a new one */
1369 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
1372 lpfc_nlp_init(vport
, ndlp
, Fabric_DID
);
1373 /* Set the node type */
1374 ndlp
->nlp_type
|= NLP_FABRIC
;
1375 /* Put ndlp onto node list */
1376 lpfc_enqueue_node(vport
, ndlp
);
1377 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
1378 /* re-setup ndlp without removing from node list */
1379 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_UNUSED_NODE
);
1384 if (lpfc_issue_els_flogi(vport
, ndlp
, 0)) {
1385 /* This decrement of reference count to node shall kick off
1386 * the release of the node.
1395 * lpfc_initial_fdisc - Issue an initial fabric discovery for a vport
1396 * @vport: pointer to a host virtual N_Port data structure.
1398 * This routine issues an initial Fabric Discover (FDISC) for the @vport
1399 * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from
1400 * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and
1401 * put it into the @vport's ndlp list. If an inactive ndlp found on the list,
1402 * it will just be enabled and made active. The lpfc_issue_els_fdisc() routine
1403 * is then invoked with the @vport and the ndlp to perform the FDISC for the
1407 * 0 - failed to issue initial fdisc for @vport
1408 * 1 - successfully issued initial fdisc for @vport
1411 lpfc_initial_fdisc(struct lpfc_vport
*vport
)
1413 struct lpfc_hba
*phba
= vport
->phba
;
1414 struct lpfc_nodelist
*ndlp
;
1416 /* First look for the Fabric ndlp */
1417 ndlp
= lpfc_findnode_did(vport
, Fabric_DID
);
1419 /* Cannot find existing Fabric ndlp, so allocate a new one */
1420 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
1423 lpfc_nlp_init(vport
, ndlp
, Fabric_DID
);
1424 /* Put ndlp onto node list */
1425 lpfc_enqueue_node(vport
, ndlp
);
1426 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
1427 /* re-setup ndlp without removing from node list */
1428 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_UNUSED_NODE
);
1433 if (lpfc_issue_els_fdisc(vport
, ndlp
, 0)) {
1434 /* decrement node reference count to trigger the release of
1444 * lpfc_more_plogi - Check and issue remaining plogis for a vport
1445 * @vport: pointer to a host virtual N_Port data structure.
1447 * This routine checks whether there are more remaining Port Logins
1448 * (PLOGI) to be issued for the @vport. If so, it will invoke the routine
1449 * lpfc_els_disc_plogi() to go through the Node Port Recovery (NPR) nodes
1450 * to issue ELS PLOGIs up to the configured discover threads with the
1451 * @vport (@vport->cfg_discovery_threads). The function also decrement
1452 * the @vport's num_disc_node by 1 if it is not already 0.
1455 lpfc_more_plogi(struct lpfc_vport
*vport
)
1459 if (vport
->num_disc_nodes
)
1460 vport
->num_disc_nodes
--;
1462 /* Continue discovery with <num_disc_nodes> PLOGIs to go */
1463 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
1464 "0232 Continue discovery with %d PLOGIs to go "
1465 "Data: x%x x%x x%x\n",
1466 vport
->num_disc_nodes
, vport
->fc_plogi_cnt
,
1467 vport
->fc_flag
, vport
->port_state
);
1468 /* Check to see if there are more PLOGIs to be sent */
1469 if (vport
->fc_flag
& FC_NLP_MORE
)
1470 /* go thru NPR nodes and issue any remaining ELS PLOGIs */
1471 sentplogi
= lpfc_els_disc_plogi(vport
);
1477 * lpfc_plogi_confirm_nport - Confirm pologi wwpn matches stored ndlp
1478 * @phba: pointer to lpfc hba data structure.
1479 * @prsp: pointer to response IOCB payload.
1480 * @ndlp: pointer to a node-list data structure.
1482 * This routine checks and indicates whether the WWPN of an N_Port, retrieved
1483 * from a PLOGI, matches the WWPN that is stored in the @ndlp for that N_POrt.
1484 * The following cases are considered N_Port confirmed:
1485 * 1) The N_Port is a Fabric ndlp; 2) The @ndlp is on vport list and matches
1486 * the WWPN of the N_Port logged into; 3) The @ndlp is not on vport list but
1487 * it does not have WWPN assigned either. If the WWPN is confirmed, the
1488 * pointer to the @ndlp will be returned. If the WWPN is not confirmed:
1489 * 1) if there is a node on vport list other than the @ndlp with the same
1490 * WWPN of the N_Port PLOGI logged into, the lpfc_unreg_rpi() will be invoked
1491 * on that node to release the RPI associated with the node; 2) if there is
1492 * no node found on vport list with the same WWPN of the N_Port PLOGI logged
1493 * into, a new node shall be allocated (or activated). In either case, the
1494 * parameters of the @ndlp shall be copied to the new_ndlp, the @ndlp shall
1495 * be released and the new_ndlp shall be put on to the vport node list and
1496 * its pointer returned as the confirmed node.
1498 * Note that before the @ndlp got "released", the keepDID from not-matching
1499 * or inactive "new_ndlp" on the vport node list is assigned to the nlp_DID
1500 * of the @ndlp. This is because the release of @ndlp is actually to put it
1501 * into an inactive state on the vport node list and the vport node list
1502 * management algorithm does not allow two node with a same DID.
1505 * pointer to the PLOGI N_Port @ndlp
1507 static struct lpfc_nodelist
*
1508 lpfc_plogi_confirm_nport(struct lpfc_hba
*phba
, uint32_t *prsp
,
1509 struct lpfc_nodelist
*ndlp
)
1511 struct lpfc_vport
*vport
= ndlp
->vport
;
1512 struct lpfc_nodelist
*new_ndlp
;
1513 struct lpfc_rport_data
*rdata
;
1514 struct fc_rport
*rport
;
1515 struct serv_parm
*sp
;
1516 uint8_t name
[sizeof(struct lpfc_name
)];
1517 uint32_t rc
, keepDID
= 0;
1520 unsigned long *active_rrqs_xri_bitmap
= NULL
;
1522 /* Fabric nodes can have the same WWPN so we don't bother searching
1523 * by WWPN. Just return the ndlp that was given to us.
1525 if (ndlp
->nlp_type
& NLP_FABRIC
)
1528 sp
= (struct serv_parm
*) ((uint8_t *) prsp
+ sizeof(uint32_t));
1529 memset(name
, 0, sizeof(struct lpfc_name
));
1531 /* Now we find out if the NPort we are logging into, matches the WWPN
1532 * we have for that ndlp. If not, we have some work to do.
1534 new_ndlp
= lpfc_findnode_wwpn(vport
, &sp
->portName
);
1536 if (new_ndlp
== ndlp
&& NLP_CHK_NODE_ACT(new_ndlp
))
1538 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
1539 active_rrqs_xri_bitmap
= mempool_alloc(phba
->active_rrq_pool
,
1541 if (active_rrqs_xri_bitmap
)
1542 memset(active_rrqs_xri_bitmap
, 0,
1543 phba
->cfg_rrq_xri_bitmap_sz
);
1546 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
1547 "3178 PLOGI confirm: ndlp %p x%x: new_ndlp %p\n",
1548 ndlp
, ndlp
->nlp_DID
, new_ndlp
);
1551 rc
= memcmp(&ndlp
->nlp_portname
, name
,
1552 sizeof(struct lpfc_name
));
1554 if (active_rrqs_xri_bitmap
)
1555 mempool_free(active_rrqs_xri_bitmap
,
1556 phba
->active_rrq_pool
);
1559 new_ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_ATOMIC
);
1561 if (active_rrqs_xri_bitmap
)
1562 mempool_free(active_rrqs_xri_bitmap
,
1563 phba
->active_rrq_pool
);
1566 lpfc_nlp_init(vport
, new_ndlp
, ndlp
->nlp_DID
);
1567 } else if (!NLP_CHK_NODE_ACT(new_ndlp
)) {
1568 rc
= memcmp(&ndlp
->nlp_portname
, name
,
1569 sizeof(struct lpfc_name
));
1571 if (active_rrqs_xri_bitmap
)
1572 mempool_free(active_rrqs_xri_bitmap
,
1573 phba
->active_rrq_pool
);
1576 new_ndlp
= lpfc_enable_node(vport
, new_ndlp
,
1577 NLP_STE_UNUSED_NODE
);
1579 if (active_rrqs_xri_bitmap
)
1580 mempool_free(active_rrqs_xri_bitmap
,
1581 phba
->active_rrq_pool
);
1584 keepDID
= new_ndlp
->nlp_DID
;
1585 if ((phba
->sli_rev
== LPFC_SLI_REV4
) && active_rrqs_xri_bitmap
)
1586 memcpy(active_rrqs_xri_bitmap
,
1587 new_ndlp
->active_rrqs_xri_bitmap
,
1588 phba
->cfg_rrq_xri_bitmap_sz
);
1590 keepDID
= new_ndlp
->nlp_DID
;
1591 if (phba
->sli_rev
== LPFC_SLI_REV4
&&
1592 active_rrqs_xri_bitmap
)
1593 memcpy(active_rrqs_xri_bitmap
,
1594 new_ndlp
->active_rrqs_xri_bitmap
,
1595 phba
->cfg_rrq_xri_bitmap_sz
);
1598 lpfc_unreg_rpi(vport
, new_ndlp
);
1599 new_ndlp
->nlp_DID
= ndlp
->nlp_DID
;
1600 new_ndlp
->nlp_prev_state
= ndlp
->nlp_prev_state
;
1601 if (phba
->sli_rev
== LPFC_SLI_REV4
)
1602 memcpy(new_ndlp
->active_rrqs_xri_bitmap
,
1603 ndlp
->active_rrqs_xri_bitmap
,
1604 phba
->cfg_rrq_xri_bitmap_sz
);
1606 if (ndlp
->nlp_flag
& NLP_NPR_2B_DISC
)
1607 new_ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
1608 ndlp
->nlp_flag
&= ~NLP_NPR_2B_DISC
;
1610 /* Set state will put new_ndlp on to node list if not already done */
1611 lpfc_nlp_set_state(vport
, new_ndlp
, ndlp
->nlp_state
);
1613 /* Move this back to NPR state */
1614 if (memcmp(&ndlp
->nlp_portname
, name
, sizeof(struct lpfc_name
)) == 0) {
1615 /* The new_ndlp is replacing ndlp totally, so we need
1616 * to put ndlp on UNUSED list and try to free it.
1618 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
1619 "3179 PLOGI confirm NEW: %x %x\n",
1620 new_ndlp
->nlp_DID
, keepDID
);
1622 /* Fix up the rport accordingly */
1623 rport
= ndlp
->rport
;
1625 rdata
= rport
->dd_data
;
1626 if (rdata
->pnode
== ndlp
) {
1629 rdata
->pnode
= lpfc_nlp_get(new_ndlp
);
1630 new_ndlp
->rport
= rport
;
1632 new_ndlp
->nlp_type
= ndlp
->nlp_type
;
1634 /* We shall actually free the ndlp with both nlp_DID and
1635 * nlp_portname fields equals 0 to avoid any ndlp on the
1636 * nodelist never to be used.
1638 if (ndlp
->nlp_DID
== 0) {
1639 spin_lock_irq(&phba
->ndlp_lock
);
1640 NLP_SET_FREE_REQ(ndlp
);
1641 spin_unlock_irq(&phba
->ndlp_lock
);
1644 /* Two ndlps cannot have the same did on the nodelist */
1645 ndlp
->nlp_DID
= keepDID
;
1646 if (phba
->sli_rev
== LPFC_SLI_REV4
&&
1647 active_rrqs_xri_bitmap
)
1648 memcpy(ndlp
->active_rrqs_xri_bitmap
,
1649 active_rrqs_xri_bitmap
,
1650 phba
->cfg_rrq_xri_bitmap_sz
);
1651 lpfc_drop_node(vport
, ndlp
);
1654 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
1655 "3180 PLOGI confirm SWAP: %x %x\n",
1656 new_ndlp
->nlp_DID
, keepDID
);
1658 lpfc_unreg_rpi(vport
, ndlp
);
1660 /* Two ndlps cannot have the same did */
1661 ndlp
->nlp_DID
= keepDID
;
1662 if (phba
->sli_rev
== LPFC_SLI_REV4
&&
1663 active_rrqs_xri_bitmap
)
1664 memcpy(ndlp
->active_rrqs_xri_bitmap
,
1665 active_rrqs_xri_bitmap
,
1666 phba
->cfg_rrq_xri_bitmap_sz
);
1668 /* Since we are swapping the ndlp passed in with the new one
1669 * and the did has already been swapped, copy over state.
1670 * The new WWNs are already in new_ndlp since thats what
1671 * we looked it up by in the begining of this routine.
1673 new_ndlp
->nlp_state
= ndlp
->nlp_state
;
1675 /* Since we are switching over to the new_ndlp, the old
1676 * ndlp should be put in the NPR state, unless we have
1677 * already started re-discovery on it.
1679 if ((ndlp
->nlp_state
== NLP_STE_UNMAPPED_NODE
) ||
1680 (ndlp
->nlp_state
== NLP_STE_MAPPED_NODE
))
1681 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
1683 /* Fix up the rport accordingly */
1684 rport
= ndlp
->rport
;
1686 rdata
= rport
->dd_data
;
1687 put_node
= rdata
->pnode
!= NULL
;
1688 put_rport
= ndlp
->rport
!= NULL
;
1689 rdata
->pnode
= NULL
;
1694 put_device(&rport
->dev
);
1697 if (phba
->sli_rev
== LPFC_SLI_REV4
&&
1698 active_rrqs_xri_bitmap
)
1699 mempool_free(active_rrqs_xri_bitmap
,
1700 phba
->active_rrq_pool
);
1705 * lpfc_end_rscn - Check and handle more rscn for a vport
1706 * @vport: pointer to a host virtual N_Port data structure.
1708 * This routine checks whether more Registration State Change
1709 * Notifications (RSCNs) came in while the discovery state machine was in
1710 * the FC_RSCN_MODE. If so, the lpfc_els_handle_rscn() routine will be
1711 * invoked to handle the additional RSCNs for the @vport. Otherwise, the
1712 * FC_RSCN_MODE bit will be cleared with the @vport to mark as the end of
1713 * handling the RSCNs.
1716 lpfc_end_rscn(struct lpfc_vport
*vport
)
1718 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
1720 if (vport
->fc_flag
& FC_RSCN_MODE
) {
1722 * Check to see if more RSCNs came in while we were
1723 * processing this one.
1725 if (vport
->fc_rscn_id_cnt
||
1726 (vport
->fc_flag
& FC_RSCN_DISCOVERY
) != 0)
1727 lpfc_els_handle_rscn(vport
);
1729 spin_lock_irq(shost
->host_lock
);
1730 vport
->fc_flag
&= ~FC_RSCN_MODE
;
1731 spin_unlock_irq(shost
->host_lock
);
1737 * lpfc_cmpl_els_rrq - Completion handled for els RRQs.
1738 * @phba: pointer to lpfc hba data structure.
1739 * @cmdiocb: pointer to lpfc command iocb data structure.
1740 * @rspiocb: pointer to lpfc response iocb data structure.
1742 * This routine will call the clear rrq function to free the rrq and
1743 * clear the xri's bit in the ndlp's xri_bitmap. If the ndlp does not
1744 * exist then the clear_rrq is still called because the rrq needs to
1749 lpfc_cmpl_els_rrq(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
1750 struct lpfc_iocbq
*rspiocb
)
1752 struct lpfc_vport
*vport
= cmdiocb
->vport
;
1754 struct lpfc_nodelist
*ndlp
;
1755 struct lpfc_node_rrq
*rrq
;
1757 /* we pass cmdiocb to state machine which needs rspiocb as well */
1758 rrq
= cmdiocb
->context_un
.rrq
;
1759 cmdiocb
->context_un
.rsp_iocb
= rspiocb
;
1761 irsp
= &rspiocb
->iocb
;
1762 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
1763 "RRQ cmpl: status:x%x/x%x did:x%x",
1764 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
1765 irsp
->un
.elsreq64
.remoteID
);
1767 ndlp
= lpfc_findnode_did(vport
, irsp
->un
.elsreq64
.remoteID
);
1768 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
) || ndlp
!= rrq
->ndlp
) {
1769 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
1770 "2882 RRQ completes to NPort x%x "
1771 "with no ndlp. Data: x%x x%x x%x\n",
1772 irsp
->un
.elsreq64
.remoteID
,
1773 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
1778 /* rrq completes to NPort <nlp_DID> */
1779 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
1780 "2880 RRQ completes to NPort x%x "
1781 "Data: x%x x%x x%x x%x x%x\n",
1782 ndlp
->nlp_DID
, irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
1783 irsp
->ulpTimeout
, rrq
->xritag
, rrq
->rxid
);
1785 if (irsp
->ulpStatus
) {
1786 /* Check for retry */
1787 /* RRQ failed Don't print the vport to vport rjts */
1788 if (irsp
->ulpStatus
!= IOSTAT_LS_RJT
||
1789 (((irsp
->un
.ulpWord
[4]) >> 16 != LSRJT_INVALID_CMD
) &&
1790 ((irsp
->un
.ulpWord
[4]) >> 16 != LSRJT_UNABLE_TPC
)) ||
1791 (phba
)->pport
->cfg_log_verbose
& LOG_ELS
)
1792 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
1793 "2881 RRQ failure DID:%06X Status:x%x/x%x\n",
1794 ndlp
->nlp_DID
, irsp
->ulpStatus
,
1795 irsp
->un
.ulpWord
[4]);
1799 lpfc_clr_rrq_active(phba
, rrq
->xritag
, rrq
);
1800 lpfc_els_free_iocb(phba
, cmdiocb
);
1804 * lpfc_cmpl_els_plogi - Completion callback function for plogi
1805 * @phba: pointer to lpfc hba data structure.
1806 * @cmdiocb: pointer to lpfc command iocb data structure.
1807 * @rspiocb: pointer to lpfc response iocb data structure.
1809 * This routine is the completion callback function for issuing the Port
1810 * Login (PLOGI) command. For PLOGI completion, there must be an active
1811 * ndlp on the vport node list that matches the remote node ID from the
1812 * PLOGI response IOCB. If such ndlp does not exist, the PLOGI is simply
1813 * ignored and command IOCB released. The PLOGI response IOCB status is
1814 * checked for error conditons. If there is error status reported, PLOGI
1815 * retry shall be attempted by invoking the lpfc_els_retry() routine.
1816 * Otherwise, the lpfc_plogi_confirm_nport() routine shall be invoked on
1817 * the ndlp and the NLP_EVT_CMPL_PLOGI state to the Discover State Machine
1818 * (DSM) is set for this PLOGI completion. Finally, it checks whether
1819 * there are additional N_Port nodes with the vport that need to perform
1820 * PLOGI. If so, the lpfc_more_plogi() routine is invoked to issue addition
1824 lpfc_cmpl_els_plogi(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
1825 struct lpfc_iocbq
*rspiocb
)
1827 struct lpfc_vport
*vport
= cmdiocb
->vport
;
1828 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
1830 struct lpfc_nodelist
*ndlp
;
1831 struct lpfc_dmabuf
*prsp
;
1834 /* we pass cmdiocb to state machine which needs rspiocb as well */
1835 cmdiocb
->context_un
.rsp_iocb
= rspiocb
;
1837 irsp
= &rspiocb
->iocb
;
1838 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
1839 "PLOGI cmpl: status:x%x/x%x did:x%x",
1840 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
1841 irsp
->un
.elsreq64
.remoteID
);
1843 ndlp
= lpfc_findnode_did(vport
, irsp
->un
.elsreq64
.remoteID
);
1844 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
)) {
1845 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
1846 "0136 PLOGI completes to NPort x%x "
1847 "with no ndlp. Data: x%x x%x x%x\n",
1848 irsp
->un
.elsreq64
.remoteID
,
1849 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
1854 /* Since ndlp can be freed in the disc state machine, note if this node
1855 * is being used during discovery.
1857 spin_lock_irq(shost
->host_lock
);
1858 disc
= (ndlp
->nlp_flag
& NLP_NPR_2B_DISC
);
1859 ndlp
->nlp_flag
&= ~NLP_NPR_2B_DISC
;
1860 spin_unlock_irq(shost
->host_lock
);
1863 /* PLOGI completes to NPort <nlp_DID> */
1864 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
1865 "0102 PLOGI completes to NPort x%x "
1866 "Data: x%x x%x x%x x%x x%x\n",
1867 ndlp
->nlp_DID
, irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
1868 irsp
->ulpTimeout
, disc
, vport
->num_disc_nodes
);
1869 /* Check to see if link went down during discovery */
1870 if (lpfc_els_chk_latt(vport
)) {
1871 spin_lock_irq(shost
->host_lock
);
1872 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
1873 spin_unlock_irq(shost
->host_lock
);
1877 if (irsp
->ulpStatus
) {
1878 /* Check for retry */
1879 if (lpfc_els_retry(phba
, cmdiocb
, rspiocb
)) {
1880 /* ELS command is being retried */
1882 spin_lock_irq(shost
->host_lock
);
1883 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
1884 spin_unlock_irq(shost
->host_lock
);
1888 /* PLOGI failed Don't print the vport to vport rjts */
1889 if (irsp
->ulpStatus
!= IOSTAT_LS_RJT
||
1890 (((irsp
->un
.ulpWord
[4]) >> 16 != LSRJT_INVALID_CMD
) &&
1891 ((irsp
->un
.ulpWord
[4]) >> 16 != LSRJT_UNABLE_TPC
)) ||
1892 (phba
)->pport
->cfg_log_verbose
& LOG_ELS
)
1893 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
1894 "2753 PLOGI failure DID:%06X Status:x%x/x%x\n",
1895 ndlp
->nlp_DID
, irsp
->ulpStatus
,
1896 irsp
->un
.ulpWord
[4]);
1897 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
1898 if (lpfc_error_lost_link(irsp
))
1899 rc
= NLP_STE_FREED_NODE
;
1901 rc
= lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
,
1902 NLP_EVT_CMPL_PLOGI
);
1904 /* Good status, call state machine */
1905 prsp
= list_entry(((struct lpfc_dmabuf
*)
1906 cmdiocb
->context2
)->list
.next
,
1907 struct lpfc_dmabuf
, list
);
1908 ndlp
= lpfc_plogi_confirm_nport(phba
, prsp
->virt
, ndlp
);
1909 rc
= lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
,
1910 NLP_EVT_CMPL_PLOGI
);
1913 if (disc
&& vport
->num_disc_nodes
) {
1914 /* Check to see if there are more PLOGIs to be sent */
1915 lpfc_more_plogi(vport
);
1917 if (vport
->num_disc_nodes
== 0) {
1918 spin_lock_irq(shost
->host_lock
);
1919 vport
->fc_flag
&= ~FC_NDISC_ACTIVE
;
1920 spin_unlock_irq(shost
->host_lock
);
1922 lpfc_can_disctmo(vport
);
1923 lpfc_end_rscn(vport
);
1928 lpfc_els_free_iocb(phba
, cmdiocb
);
1933 * lpfc_issue_els_plogi - Issue an plogi iocb command for a vport
1934 * @vport: pointer to a host virtual N_Port data structure.
1935 * @did: destination port identifier.
1936 * @retry: number of retries to the command IOCB.
1938 * This routine issues a Port Login (PLOGI) command to a remote N_Port
1939 * (with the @did) for a @vport. Before issuing a PLOGI to a remote N_Port,
1940 * the ndlp with the remote N_Port DID must exist on the @vport's ndlp list.
1941 * This routine constructs the proper feilds of the PLOGI IOCB and invokes
1942 * the lpfc_sli_issue_iocb() routine to send out PLOGI ELS command.
1944 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
1945 * will be incremented by 1 for holding the ndlp and the reference to ndlp
1946 * will be stored into the context1 field of the IOCB for the completion
1947 * callback function to the PLOGI ELS command.
1950 * 0 - Successfully issued a plogi for @vport
1951 * 1 - failed to issue a plogi for @vport
1954 lpfc_issue_els_plogi(struct lpfc_vport
*vport
, uint32_t did
, uint8_t retry
)
1956 struct lpfc_hba
*phba
= vport
->phba
;
1957 struct serv_parm
*sp
;
1959 struct lpfc_nodelist
*ndlp
;
1960 struct lpfc_iocbq
*elsiocb
;
1961 struct lpfc_sli
*psli
;
1968 ndlp
= lpfc_findnode_did(vport
, did
);
1969 if (ndlp
&& !NLP_CHK_NODE_ACT(ndlp
))
1972 /* If ndlp is not NULL, we will bump the reference count on it */
1973 cmdsize
= (sizeof(uint32_t) + sizeof(struct serv_parm
));
1974 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
, did
,
1979 icmd
= &elsiocb
->iocb
;
1980 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
1982 /* For PLOGI request, remainder of payload is service parameters */
1983 *((uint32_t *) (pcmd
)) = ELS_CMD_PLOGI
;
1984 pcmd
+= sizeof(uint32_t);
1985 memcpy(pcmd
, &vport
->fc_sparam
, sizeof(struct serv_parm
));
1986 sp
= (struct serv_parm
*) pcmd
;
1989 * If we are a N-port connected to a Fabric, fix-up paramm's so logins
1990 * to device on remote loops work.
1992 if ((vport
->fc_flag
& FC_FABRIC
) && !(vport
->fc_flag
& FC_PUBLIC_LOOP
))
1993 sp
->cmn
.altBbCredit
= 1;
1995 if (sp
->cmn
.fcphLow
< FC_PH_4_3
)
1996 sp
->cmn
.fcphLow
= FC_PH_4_3
;
1998 if (sp
->cmn
.fcphHigh
< FC_PH3
)
1999 sp
->cmn
.fcphHigh
= FC_PH3
;
2001 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2002 "Issue PLOGI: did:x%x",
2005 phba
->fc_stat
.elsXmitPLOGI
++;
2006 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_plogi
;
2007 ret
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
2009 if (ret
== IOCB_ERROR
) {
2010 lpfc_els_free_iocb(phba
, elsiocb
);
2017 * lpfc_cmpl_els_prli - Completion callback function for prli
2018 * @phba: pointer to lpfc hba data structure.
2019 * @cmdiocb: pointer to lpfc command iocb data structure.
2020 * @rspiocb: pointer to lpfc response iocb data structure.
2022 * This routine is the completion callback function for a Process Login
2023 * (PRLI) ELS command. The PRLI response IOCB status is checked for error
2024 * status. If there is error status reported, PRLI retry shall be attempted
2025 * by invoking the lpfc_els_retry() routine. Otherwise, the state
2026 * NLP_EVT_CMPL_PRLI is sent to the Discover State Machine (DSM) for this
2027 * ndlp to mark the PRLI completion.
2030 lpfc_cmpl_els_prli(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
2031 struct lpfc_iocbq
*rspiocb
)
2033 struct lpfc_vport
*vport
= cmdiocb
->vport
;
2034 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2036 struct lpfc_sli
*psli
;
2037 struct lpfc_nodelist
*ndlp
;
2040 /* we pass cmdiocb to state machine which needs rspiocb as well */
2041 cmdiocb
->context_un
.rsp_iocb
= rspiocb
;
2043 irsp
= &(rspiocb
->iocb
);
2044 ndlp
= (struct lpfc_nodelist
*) cmdiocb
->context1
;
2045 spin_lock_irq(shost
->host_lock
);
2046 ndlp
->nlp_flag
&= ~NLP_PRLI_SND
;
2047 spin_unlock_irq(shost
->host_lock
);
2049 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2050 "PRLI cmpl: status:x%x/x%x did:x%x",
2051 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
2053 /* PRLI completes to NPort <nlp_DID> */
2054 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
2055 "0103 PRLI completes to NPort x%x "
2056 "Data: x%x x%x x%x x%x\n",
2057 ndlp
->nlp_DID
, irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
2058 irsp
->ulpTimeout
, vport
->num_disc_nodes
);
2060 vport
->fc_prli_sent
--;
2061 /* Check to see if link went down during discovery */
2062 if (lpfc_els_chk_latt(vport
))
2065 if (irsp
->ulpStatus
) {
2066 /* Check for retry */
2067 if (lpfc_els_retry(phba
, cmdiocb
, rspiocb
)) {
2068 /* ELS command is being retried */
2072 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
2073 "2754 PRLI failure DID:%06X Status:x%x/x%x\n",
2074 ndlp
->nlp_DID
, irsp
->ulpStatus
,
2075 irsp
->un
.ulpWord
[4]);
2076 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
2077 if (lpfc_error_lost_link(irsp
))
2080 lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
,
2083 /* Good status, call state machine */
2084 lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
,
2087 lpfc_els_free_iocb(phba
, cmdiocb
);
2092 * lpfc_issue_els_prli - Issue a prli iocb command for a vport
2093 * @vport: pointer to a host virtual N_Port data structure.
2094 * @ndlp: pointer to a node-list data structure.
2095 * @retry: number of retries to the command IOCB.
2097 * This routine issues a Process Login (PRLI) ELS command for the
2098 * @vport. The PRLI service parameters are set up in the payload of the
2099 * PRLI Request command and the pointer to lpfc_cmpl_els_prli() routine
2100 * is put to the IOCB completion callback func field before invoking the
2101 * routine lpfc_sli_issue_iocb() to send out PRLI command.
2103 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2104 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2105 * will be stored into the context1 field of the IOCB for the completion
2106 * callback function to the PRLI ELS command.
2109 * 0 - successfully issued prli iocb command for @vport
2110 * 1 - failed to issue prli iocb command for @vport
2113 lpfc_issue_els_prli(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
2116 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2117 struct lpfc_hba
*phba
= vport
->phba
;
2120 struct lpfc_iocbq
*elsiocb
;
2124 cmdsize
= (sizeof(uint32_t) + sizeof(PRLI
));
2125 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
,
2126 ndlp
->nlp_DID
, ELS_CMD_PRLI
);
2130 icmd
= &elsiocb
->iocb
;
2131 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
2133 /* For PRLI request, remainder of payload is service parameters */
2134 memset(pcmd
, 0, (sizeof(PRLI
) + sizeof(uint32_t)));
2135 *((uint32_t *) (pcmd
)) = ELS_CMD_PRLI
;
2136 pcmd
+= sizeof(uint32_t);
2138 /* For PRLI, remainder of payload is PRLI parameter page */
2139 npr
= (PRLI
*) pcmd
;
2141 * If our firmware version is 3.20 or later,
2142 * set the following bits for FC-TAPE support.
2144 if (phba
->vpd
.rev
.feaLevelHigh
>= 0x02) {
2145 npr
->ConfmComplAllowed
= 1;
2147 npr
->TaskRetryIdReq
= 1;
2149 npr
->estabImagePair
= 1;
2150 npr
->readXferRdyDis
= 1;
2151 if (vport
->cfg_first_burst_size
)
2152 npr
->writeXferRdyDis
= 1;
2154 /* For FCP support */
2155 npr
->prliType
= PRLI_FCP_TYPE
;
2156 npr
->initiatorFunc
= 1;
2158 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2159 "Issue PRLI: did:x%x",
2160 ndlp
->nlp_DID
, 0, 0);
2162 phba
->fc_stat
.elsXmitPRLI
++;
2163 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_prli
;
2164 spin_lock_irq(shost
->host_lock
);
2165 ndlp
->nlp_flag
|= NLP_PRLI_SND
;
2166 spin_unlock_irq(shost
->host_lock
);
2167 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) ==
2169 spin_lock_irq(shost
->host_lock
);
2170 ndlp
->nlp_flag
&= ~NLP_PRLI_SND
;
2171 spin_unlock_irq(shost
->host_lock
);
2172 lpfc_els_free_iocb(phba
, elsiocb
);
2175 vport
->fc_prli_sent
++;
2180 * lpfc_rscn_disc - Perform rscn discovery for a vport
2181 * @vport: pointer to a host virtual N_Port data structure.
2183 * This routine performs Registration State Change Notification (RSCN)
2184 * discovery for a @vport. If the @vport's node port recovery count is not
2185 * zero, it will invoke the lpfc_els_disc_plogi() to perform PLOGI for all
2186 * the nodes that need recovery. If none of the PLOGI were needed through
2187 * the lpfc_els_disc_plogi() routine, the lpfc_end_rscn() routine shall be
2188 * invoked to check and handle possible more RSCN came in during the period
2189 * of processing the current ones.
2192 lpfc_rscn_disc(struct lpfc_vport
*vport
)
2194 lpfc_can_disctmo(vport
);
2196 /* RSCN discovery */
2197 /* go thru NPR nodes and issue ELS PLOGIs */
2198 if (vport
->fc_npr_cnt
)
2199 if (lpfc_els_disc_plogi(vport
))
2202 lpfc_end_rscn(vport
);
2206 * lpfc_adisc_done - Complete the adisc phase of discovery
2207 * @vport: pointer to lpfc_vport hba data structure that finished all ADISCs.
2209 * This function is called when the final ADISC is completed during discovery.
2210 * This function handles clearing link attention or issuing reg_vpi depending
2211 * on whether npiv is enabled. This function also kicks off the PLOGI phase of
2213 * This function is called with no locks held.
2216 lpfc_adisc_done(struct lpfc_vport
*vport
)
2218 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2219 struct lpfc_hba
*phba
= vport
->phba
;
2222 * For NPIV, cmpl_reg_vpi will set port_state to READY,
2223 * and continue discovery.
2225 if ((phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
2226 !(vport
->fc_flag
& FC_RSCN_MODE
) &&
2227 (phba
->sli_rev
< LPFC_SLI_REV4
)) {
2228 /* The ADISCs are complete. Doesn't matter if they
2229 * succeeded or failed because the ADISC completion
2230 * routine guarantees to call the state machine and
2231 * the RPI is either unregistered (failed ADISC response)
2232 * or the RPI is still valid and the node is marked
2233 * mapped for a target. The exchanges should be in the
2234 * correct state. This code is specific to SLI3.
2236 lpfc_issue_clear_la(phba
, vport
);
2237 lpfc_issue_reg_vpi(phba
, vport
);
2241 * For SLI2, we need to set port_state to READY
2242 * and continue discovery.
2244 if (vport
->port_state
< LPFC_VPORT_READY
) {
2245 /* If we get here, there is nothing to ADISC */
2246 lpfc_issue_clear_la(phba
, vport
);
2247 if (!(vport
->fc_flag
& FC_ABORT_DISCOVERY
)) {
2248 vport
->num_disc_nodes
= 0;
2249 /* go thru NPR list, issue ELS PLOGIs */
2250 if (vport
->fc_npr_cnt
)
2251 lpfc_els_disc_plogi(vport
);
2252 if (!vport
->num_disc_nodes
) {
2253 spin_lock_irq(shost
->host_lock
);
2254 vport
->fc_flag
&= ~FC_NDISC_ACTIVE
;
2255 spin_unlock_irq(shost
->host_lock
);
2256 lpfc_can_disctmo(vport
);
2257 lpfc_end_rscn(vport
);
2260 vport
->port_state
= LPFC_VPORT_READY
;
2262 lpfc_rscn_disc(vport
);
2266 * lpfc_more_adisc - Issue more adisc as needed
2267 * @vport: pointer to a host virtual N_Port data structure.
2269 * This routine determines whether there are more ndlps on a @vport
2270 * node list need to have Address Discover (ADISC) issued. If so, it will
2271 * invoke the lpfc_els_disc_adisc() routine to issue ADISC on the @vport's
2272 * remaining nodes which need to have ADISC sent.
2275 lpfc_more_adisc(struct lpfc_vport
*vport
)
2277 if (vport
->num_disc_nodes
)
2278 vport
->num_disc_nodes
--;
2279 /* Continue discovery with <num_disc_nodes> ADISCs to go */
2280 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
2281 "0210 Continue discovery with %d ADISCs to go "
2282 "Data: x%x x%x x%x\n",
2283 vport
->num_disc_nodes
, vport
->fc_adisc_cnt
,
2284 vport
->fc_flag
, vport
->port_state
);
2285 /* Check to see if there are more ADISCs to be sent */
2286 if (vport
->fc_flag
& FC_NLP_MORE
) {
2287 lpfc_set_disctmo(vport
);
2288 /* go thru NPR nodes and issue any remaining ELS ADISCs */
2289 lpfc_els_disc_adisc(vport
);
2291 if (!vport
->num_disc_nodes
)
2292 lpfc_adisc_done(vport
);
2297 * lpfc_cmpl_els_adisc - Completion callback function for adisc
2298 * @phba: pointer to lpfc hba data structure.
2299 * @cmdiocb: pointer to lpfc command iocb data structure.
2300 * @rspiocb: pointer to lpfc response iocb data structure.
2302 * This routine is the completion function for issuing the Address Discover
2303 * (ADISC) command. It first checks to see whether link went down during
2304 * the discovery process. If so, the node will be marked as node port
2305 * recovery for issuing discover IOCB by the link attention handler and
2306 * exit. Otherwise, the response status is checked. If error was reported
2307 * in the response status, the ADISC command shall be retried by invoking
2308 * the lpfc_els_retry() routine. Otherwise, if no error was reported in
2309 * the response status, the state machine is invoked to set transition
2310 * with respect to NLP_EVT_CMPL_ADISC event.
2313 lpfc_cmpl_els_adisc(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
2314 struct lpfc_iocbq
*rspiocb
)
2316 struct lpfc_vport
*vport
= cmdiocb
->vport
;
2317 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2319 struct lpfc_nodelist
*ndlp
;
2322 /* we pass cmdiocb to state machine which needs rspiocb as well */
2323 cmdiocb
->context_un
.rsp_iocb
= rspiocb
;
2325 irsp
= &(rspiocb
->iocb
);
2326 ndlp
= (struct lpfc_nodelist
*) cmdiocb
->context1
;
2328 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2329 "ADISC cmpl: status:x%x/x%x did:x%x",
2330 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
2333 /* Since ndlp can be freed in the disc state machine, note if this node
2334 * is being used during discovery.
2336 spin_lock_irq(shost
->host_lock
);
2337 disc
= (ndlp
->nlp_flag
& NLP_NPR_2B_DISC
);
2338 ndlp
->nlp_flag
&= ~(NLP_ADISC_SND
| NLP_NPR_2B_DISC
);
2339 spin_unlock_irq(shost
->host_lock
);
2340 /* ADISC completes to NPort <nlp_DID> */
2341 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
2342 "0104 ADISC completes to NPort x%x "
2343 "Data: x%x x%x x%x x%x x%x\n",
2344 ndlp
->nlp_DID
, irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
2345 irsp
->ulpTimeout
, disc
, vport
->num_disc_nodes
);
2346 /* Check to see if link went down during discovery */
2347 if (lpfc_els_chk_latt(vport
)) {
2348 spin_lock_irq(shost
->host_lock
);
2349 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
2350 spin_unlock_irq(shost
->host_lock
);
2354 if (irsp
->ulpStatus
) {
2355 /* Check for retry */
2356 if (lpfc_els_retry(phba
, cmdiocb
, rspiocb
)) {
2357 /* ELS command is being retried */
2359 spin_lock_irq(shost
->host_lock
);
2360 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
2361 spin_unlock_irq(shost
->host_lock
);
2362 lpfc_set_disctmo(vport
);
2367 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
2368 "2755 ADISC failure DID:%06X Status:x%x/x%x\n",
2369 ndlp
->nlp_DID
, irsp
->ulpStatus
,
2370 irsp
->un
.ulpWord
[4]);
2371 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
2372 if (!lpfc_error_lost_link(irsp
))
2373 lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
,
2374 NLP_EVT_CMPL_ADISC
);
2376 /* Good status, call state machine */
2377 lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
,
2378 NLP_EVT_CMPL_ADISC
);
2380 /* Check to see if there are more ADISCs to be sent */
2381 if (disc
&& vport
->num_disc_nodes
)
2382 lpfc_more_adisc(vport
);
2384 lpfc_els_free_iocb(phba
, cmdiocb
);
2389 * lpfc_issue_els_adisc - Issue an address discover iocb to an node on a vport
2390 * @vport: pointer to a virtual N_Port data structure.
2391 * @ndlp: pointer to a node-list data structure.
2392 * @retry: number of retries to the command IOCB.
2394 * This routine issues an Address Discover (ADISC) for an @ndlp on a
2395 * @vport. It prepares the payload of the ADISC ELS command, updates the
2396 * and states of the ndlp, and invokes the lpfc_sli_issue_iocb() routine
2397 * to issue the ADISC ELS command.
2399 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2400 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2401 * will be stored into the context1 field of the IOCB for the completion
2402 * callback function to the ADISC ELS command.
2405 * 0 - successfully issued adisc
2406 * 1 - failed to issue adisc
2409 lpfc_issue_els_adisc(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
2412 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2413 struct lpfc_hba
*phba
= vport
->phba
;
2416 struct lpfc_iocbq
*elsiocb
;
2420 cmdsize
= (sizeof(uint32_t) + sizeof(ADISC
));
2421 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
,
2422 ndlp
->nlp_DID
, ELS_CMD_ADISC
);
2426 icmd
= &elsiocb
->iocb
;
2427 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
2429 /* For ADISC request, remainder of payload is service parameters */
2430 *((uint32_t *) (pcmd
)) = ELS_CMD_ADISC
;
2431 pcmd
+= sizeof(uint32_t);
2433 /* Fill in ADISC payload */
2434 ap
= (ADISC
*) pcmd
;
2435 ap
->hardAL_PA
= phba
->fc_pref_ALPA
;
2436 memcpy(&ap
->portName
, &vport
->fc_portname
, sizeof(struct lpfc_name
));
2437 memcpy(&ap
->nodeName
, &vport
->fc_nodename
, sizeof(struct lpfc_name
));
2438 ap
->DID
= be32_to_cpu(vport
->fc_myDID
);
2440 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2441 "Issue ADISC: did:x%x",
2442 ndlp
->nlp_DID
, 0, 0);
2444 phba
->fc_stat
.elsXmitADISC
++;
2445 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_adisc
;
2446 spin_lock_irq(shost
->host_lock
);
2447 ndlp
->nlp_flag
|= NLP_ADISC_SND
;
2448 spin_unlock_irq(shost
->host_lock
);
2449 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) ==
2451 spin_lock_irq(shost
->host_lock
);
2452 ndlp
->nlp_flag
&= ~NLP_ADISC_SND
;
2453 spin_unlock_irq(shost
->host_lock
);
2454 lpfc_els_free_iocb(phba
, elsiocb
);
2461 * lpfc_cmpl_els_logo - Completion callback function for logo
2462 * @phba: pointer to lpfc hba data structure.
2463 * @cmdiocb: pointer to lpfc command iocb data structure.
2464 * @rspiocb: pointer to lpfc response iocb data structure.
2466 * This routine is the completion function for issuing the ELS Logout (LOGO)
2467 * command. If no error status was reported from the LOGO response, the
2468 * state machine of the associated ndlp shall be invoked for transition with
2469 * respect to NLP_EVT_CMPL_LOGO event. Otherwise, if error status was reported,
2470 * the lpfc_els_retry() routine will be invoked to retry the LOGO command.
2473 lpfc_cmpl_els_logo(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
2474 struct lpfc_iocbq
*rspiocb
)
2476 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) cmdiocb
->context1
;
2477 struct lpfc_vport
*vport
= ndlp
->vport
;
2478 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2480 struct lpfc_sli
*psli
;
2481 struct lpfcMboxq
*mbox
;
2482 unsigned long flags
;
2483 uint32_t skip_recovery
= 0;
2486 /* we pass cmdiocb to state machine which needs rspiocb as well */
2487 cmdiocb
->context_un
.rsp_iocb
= rspiocb
;
2489 irsp
= &(rspiocb
->iocb
);
2490 spin_lock_irq(shost
->host_lock
);
2491 ndlp
->nlp_flag
&= ~NLP_LOGO_SND
;
2492 spin_unlock_irq(shost
->host_lock
);
2494 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2495 "LOGO cmpl: status:x%x/x%x did:x%x",
2496 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
2499 /* LOGO completes to NPort <nlp_DID> */
2500 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
2501 "0105 LOGO completes to NPort x%x "
2502 "Data: x%x x%x x%x x%x\n",
2503 ndlp
->nlp_DID
, irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
2504 irsp
->ulpTimeout
, vport
->num_disc_nodes
);
2506 if (lpfc_els_chk_latt(vport
)) {
2511 /* Check to see if link went down during discovery */
2512 if (ndlp
->nlp_flag
& NLP_TARGET_REMOVE
) {
2513 /* NLP_EVT_DEVICE_RM should unregister the RPI
2514 * which should abort all outstanding IOs.
2516 lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
,
2522 if (irsp
->ulpStatus
) {
2523 /* Check for retry */
2524 if (lpfc_els_retry(phba
, cmdiocb
, rspiocb
)) {
2525 /* ELS command is being retried */
2530 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
2531 "2756 LOGO failure DID:%06X Status:x%x/x%x\n",
2532 ndlp
->nlp_DID
, irsp
->ulpStatus
,
2533 irsp
->un
.ulpWord
[4]);
2534 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
2535 if (lpfc_error_lost_link(irsp
)) {
2541 /* Call state machine. This will unregister the rpi if needed. */
2542 lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
, NLP_EVT_CMPL_LOGO
);
2545 lpfc_els_free_iocb(phba
, cmdiocb
);
2546 /* If we are in pt2pt mode, we could rcv new S_ID on PLOGI */
2547 if ((vport
->fc_flag
& FC_PT2PT
) &&
2548 !(vport
->fc_flag
& FC_PT2PT_PLOGI
)) {
2549 phba
->pport
->fc_myDID
= 0;
2550 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
2552 lpfc_config_link(phba
, mbox
);
2553 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
2554 mbox
->vport
= vport
;
2555 if (lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
) ==
2557 mempool_free(mbox
, phba
->mbox_mem_pool
);
2564 * If the node is a target, the handling attempts to recover the port.
2565 * For any other port type, the rpi is unregistered as an implicit
2568 if ((ndlp
->nlp_type
& NLP_FCP_TARGET
) && (skip_recovery
== 0)) {
2569 lpfc_cancel_retry_delay_tmo(vport
, ndlp
);
2570 spin_lock_irqsave(shost
->host_lock
, flags
);
2571 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
2572 spin_unlock_irqrestore(shost
->host_lock
, flags
);
2574 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
2575 "3187 LOGO completes to NPort x%x: Start "
2576 "Recovery Data: x%x x%x x%x x%x\n",
2577 ndlp
->nlp_DID
, irsp
->ulpStatus
,
2578 irsp
->un
.ulpWord
[4], irsp
->ulpTimeout
,
2579 vport
->num_disc_nodes
);
2580 lpfc_disc_start(vport
);
2586 * lpfc_issue_els_logo - Issue a logo to an node on a vport
2587 * @vport: pointer to a virtual N_Port data structure.
2588 * @ndlp: pointer to a node-list data structure.
2589 * @retry: number of retries to the command IOCB.
2591 * This routine constructs and issues an ELS Logout (LOGO) iocb command
2592 * to a remote node, referred by an @ndlp on a @vport. It constructs the
2593 * payload of the IOCB, properly sets up the @ndlp state, and invokes the
2594 * lpfc_sli_issue_iocb() routine to send out the LOGO ELS command.
2596 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2597 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2598 * will be stored into the context1 field of the IOCB for the completion
2599 * callback function to the LOGO ELS command.
2602 * 0 - successfully issued logo
2603 * 1 - failed to issue logo
2606 lpfc_issue_els_logo(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
2609 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2610 struct lpfc_hba
*phba
= vport
->phba
;
2612 struct lpfc_iocbq
*elsiocb
;
2617 spin_lock_irq(shost
->host_lock
);
2618 if (ndlp
->nlp_flag
& NLP_LOGO_SND
) {
2619 spin_unlock_irq(shost
->host_lock
);
2622 spin_unlock_irq(shost
->host_lock
);
2624 cmdsize
= (2 * sizeof(uint32_t)) + sizeof(struct lpfc_name
);
2625 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
,
2626 ndlp
->nlp_DID
, ELS_CMD_LOGO
);
2630 icmd
= &elsiocb
->iocb
;
2631 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
2632 *((uint32_t *) (pcmd
)) = ELS_CMD_LOGO
;
2633 pcmd
+= sizeof(uint32_t);
2635 /* Fill in LOGO payload */
2636 *((uint32_t *) (pcmd
)) = be32_to_cpu(vport
->fc_myDID
);
2637 pcmd
+= sizeof(uint32_t);
2638 memcpy(pcmd
, &vport
->fc_portname
, sizeof(struct lpfc_name
));
2640 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2641 "Issue LOGO: did:x%x",
2642 ndlp
->nlp_DID
, 0, 0);
2645 * If we are issuing a LOGO, we may try to recover the remote NPort
2646 * by issuing a PLOGI later. Even though we issue ELS cmds by the
2647 * VPI, if we have a valid RPI, and that RPI gets unreg'ed while
2648 * that ELS command is in-flight, the HBA returns a IOERR_INVALID_RPI
2649 * for that ELS cmd. To avoid this situation, lets get rid of the
2650 * RPI right now, before any ELS cmds are sent.
2652 spin_lock_irq(shost
->host_lock
);
2653 ndlp
->nlp_flag
|= NLP_ISSUE_LOGO
;
2654 spin_unlock_irq(shost
->host_lock
);
2655 if (lpfc_unreg_rpi(vport
, ndlp
)) {
2656 lpfc_els_free_iocb(phba
, elsiocb
);
2660 phba
->fc_stat
.elsXmitLOGO
++;
2661 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_logo
;
2662 spin_lock_irq(shost
->host_lock
);
2663 ndlp
->nlp_flag
|= NLP_LOGO_SND
;
2664 ndlp
->nlp_flag
&= ~NLP_ISSUE_LOGO
;
2665 spin_unlock_irq(shost
->host_lock
);
2666 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
2668 if (rc
== IOCB_ERROR
) {
2669 spin_lock_irq(shost
->host_lock
);
2670 ndlp
->nlp_flag
&= ~NLP_LOGO_SND
;
2671 spin_unlock_irq(shost
->host_lock
);
2672 lpfc_els_free_iocb(phba
, elsiocb
);
2679 * lpfc_cmpl_els_cmd - Completion callback function for generic els command
2680 * @phba: pointer to lpfc hba data structure.
2681 * @cmdiocb: pointer to lpfc command iocb data structure.
2682 * @rspiocb: pointer to lpfc response iocb data structure.
2684 * This routine is a generic completion callback function for ELS commands.
2685 * Specifically, it is the callback function which does not need to perform
2686 * any command specific operations. It is currently used by the ELS command
2687 * issuing routines for the ELS State Change Request (SCR),
2688 * lpfc_issue_els_scr(), and the ELS Fibre Channel Address Resolution
2689 * Protocol Response (FARPR) routine, lpfc_issue_els_farpr(). Other than
2690 * certain debug loggings, this callback function simply invokes the
2691 * lpfc_els_chk_latt() routine to check whether link went down during the
2692 * discovery process.
2695 lpfc_cmpl_els_cmd(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
2696 struct lpfc_iocbq
*rspiocb
)
2698 struct lpfc_vport
*vport
= cmdiocb
->vport
;
2701 irsp
= &rspiocb
->iocb
;
2703 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2704 "ELS cmd cmpl: status:x%x/x%x did:x%x",
2705 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
2706 irsp
->un
.elsreq64
.remoteID
);
2707 /* ELS cmd tag <ulpIoTag> completes */
2708 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
2709 "0106 ELS cmd tag x%x completes Data: x%x x%x x%x\n",
2710 irsp
->ulpIoTag
, irsp
->ulpStatus
,
2711 irsp
->un
.ulpWord
[4], irsp
->ulpTimeout
);
2712 /* Check to see if link went down during discovery */
2713 lpfc_els_chk_latt(vport
);
2714 lpfc_els_free_iocb(phba
, cmdiocb
);
2719 * lpfc_issue_els_scr - Issue a scr to an node on a vport
2720 * @vport: pointer to a host virtual N_Port data structure.
2721 * @nportid: N_Port identifier to the remote node.
2722 * @retry: number of retries to the command IOCB.
2724 * This routine issues a State Change Request (SCR) to a fabric node
2725 * on a @vport. The remote node @nportid is passed into the function. It
2726 * first search the @vport node list to find the matching ndlp. If no such
2727 * ndlp is found, a new ndlp shall be created for this (SCR) purpose. An
2728 * IOCB is allocated, payload prepared, and the lpfc_sli_issue_iocb()
2729 * routine is invoked to send the SCR IOCB.
2731 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2732 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2733 * will be stored into the context1 field of the IOCB for the completion
2734 * callback function to the SCR ELS command.
2737 * 0 - Successfully issued scr command
2738 * 1 - Failed to issue scr command
2741 lpfc_issue_els_scr(struct lpfc_vport
*vport
, uint32_t nportid
, uint8_t retry
)
2743 struct lpfc_hba
*phba
= vport
->phba
;
2745 struct lpfc_iocbq
*elsiocb
;
2746 struct lpfc_sli
*psli
;
2749 struct lpfc_nodelist
*ndlp
;
2752 cmdsize
= (sizeof(uint32_t) + sizeof(SCR
));
2754 ndlp
= lpfc_findnode_did(vport
, nportid
);
2756 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
2759 lpfc_nlp_init(vport
, ndlp
, nportid
);
2760 lpfc_enqueue_node(vport
, ndlp
);
2761 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
2762 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_UNUSED_NODE
);
2767 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
,
2768 ndlp
->nlp_DID
, ELS_CMD_SCR
);
2771 /* This will trigger the release of the node just
2778 icmd
= &elsiocb
->iocb
;
2779 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
2781 *((uint32_t *) (pcmd
)) = ELS_CMD_SCR
;
2782 pcmd
+= sizeof(uint32_t);
2784 /* For SCR, remainder of payload is SCR parameter page */
2785 memset(pcmd
, 0, sizeof(SCR
));
2786 ((SCR
*) pcmd
)->Function
= SCR_FUNC_FULL
;
2788 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2789 "Issue SCR: did:x%x",
2790 ndlp
->nlp_DID
, 0, 0);
2792 phba
->fc_stat
.elsXmitSCR
++;
2793 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_cmd
;
2794 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) ==
2796 /* The additional lpfc_nlp_put will cause the following
2797 * lpfc_els_free_iocb routine to trigger the rlease of
2801 lpfc_els_free_iocb(phba
, elsiocb
);
2804 /* This will cause the callback-function lpfc_cmpl_els_cmd to
2805 * trigger the release of node.
2813 * lpfc_issue_els_farpr - Issue a farp to an node on a vport
2814 * @vport: pointer to a host virtual N_Port data structure.
2815 * @nportid: N_Port identifier to the remote node.
2816 * @retry: number of retries to the command IOCB.
2818 * This routine issues a Fibre Channel Address Resolution Response
2819 * (FARPR) to a node on a vport. The remote node N_Port identifier (@nportid)
2820 * is passed into the function. It first search the @vport node list to find
2821 * the matching ndlp. If no such ndlp is found, a new ndlp shall be created
2822 * for this (FARPR) purpose. An IOCB is allocated, payload prepared, and the
2823 * lpfc_sli_issue_iocb() routine is invoked to send the FARPR ELS command.
2825 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2826 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2827 * will be stored into the context1 field of the IOCB for the completion
2828 * callback function to the PARPR ELS command.
2831 * 0 - Successfully issued farpr command
2832 * 1 - Failed to issue farpr command
2835 lpfc_issue_els_farpr(struct lpfc_vport
*vport
, uint32_t nportid
, uint8_t retry
)
2837 struct lpfc_hba
*phba
= vport
->phba
;
2839 struct lpfc_iocbq
*elsiocb
;
2840 struct lpfc_sli
*psli
;
2845 struct lpfc_nodelist
*ondlp
;
2846 struct lpfc_nodelist
*ndlp
;
2849 cmdsize
= (sizeof(uint32_t) + sizeof(FARP
));
2851 ndlp
= lpfc_findnode_did(vport
, nportid
);
2853 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
2856 lpfc_nlp_init(vport
, ndlp
, nportid
);
2857 lpfc_enqueue_node(vport
, ndlp
);
2858 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
2859 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_UNUSED_NODE
);
2864 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
,
2865 ndlp
->nlp_DID
, ELS_CMD_RNID
);
2867 /* This will trigger the release of the node just
2874 icmd
= &elsiocb
->iocb
;
2875 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
2877 *((uint32_t *) (pcmd
)) = ELS_CMD_FARPR
;
2878 pcmd
+= sizeof(uint32_t);
2880 /* Fill in FARPR payload */
2881 fp
= (FARP
*) (pcmd
);
2882 memset(fp
, 0, sizeof(FARP
));
2883 lp
= (uint32_t *) pcmd
;
2884 *lp
++ = be32_to_cpu(nportid
);
2885 *lp
++ = be32_to_cpu(vport
->fc_myDID
);
2887 fp
->Mflags
= (FARP_MATCH_PORT
| FARP_MATCH_NODE
);
2889 memcpy(&fp
->RportName
, &vport
->fc_portname
, sizeof(struct lpfc_name
));
2890 memcpy(&fp
->RnodeName
, &vport
->fc_nodename
, sizeof(struct lpfc_name
));
2891 ondlp
= lpfc_findnode_did(vport
, nportid
);
2892 if (ondlp
&& NLP_CHK_NODE_ACT(ondlp
)) {
2893 memcpy(&fp
->OportName
, &ondlp
->nlp_portname
,
2894 sizeof(struct lpfc_name
));
2895 memcpy(&fp
->OnodeName
, &ondlp
->nlp_nodename
,
2896 sizeof(struct lpfc_name
));
2899 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2900 "Issue FARPR: did:x%x",
2901 ndlp
->nlp_DID
, 0, 0);
2903 phba
->fc_stat
.elsXmitFARPR
++;
2904 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_cmd
;
2905 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) ==
2907 /* The additional lpfc_nlp_put will cause the following
2908 * lpfc_els_free_iocb routine to trigger the release of
2912 lpfc_els_free_iocb(phba
, elsiocb
);
2915 /* This will cause the callback-function lpfc_cmpl_els_cmd to
2916 * trigger the release of the node.
2923 * lpfc_cancel_retry_delay_tmo - Cancel the timer with delayed iocb-cmd retry
2924 * @vport: pointer to a host virtual N_Port data structure.
2925 * @nlp: pointer to a node-list data structure.
2927 * This routine cancels the timer with a delayed IOCB-command retry for
2928 * a @vport's @ndlp. It stops the timer for the delayed function retrial and
2929 * removes the ELS retry event if it presents. In addition, if the
2930 * NLP_NPR_2B_DISC bit is set in the @nlp's nlp_flag bitmap, ADISC IOCB
2931 * commands are sent for the @vport's nodes that require issuing discovery
2935 lpfc_cancel_retry_delay_tmo(struct lpfc_vport
*vport
, struct lpfc_nodelist
*nlp
)
2937 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2938 struct lpfc_work_evt
*evtp
;
2940 if (!(nlp
->nlp_flag
& NLP_DELAY_TMO
))
2942 spin_lock_irq(shost
->host_lock
);
2943 nlp
->nlp_flag
&= ~NLP_DELAY_TMO
;
2944 spin_unlock_irq(shost
->host_lock
);
2945 del_timer_sync(&nlp
->nlp_delayfunc
);
2946 nlp
->nlp_last_elscmd
= 0;
2947 if (!list_empty(&nlp
->els_retry_evt
.evt_listp
)) {
2948 list_del_init(&nlp
->els_retry_evt
.evt_listp
);
2949 /* Decrement nlp reference count held for the delayed retry */
2950 evtp
= &nlp
->els_retry_evt
;
2951 lpfc_nlp_put((struct lpfc_nodelist
*)evtp
->evt_arg1
);
2953 if (nlp
->nlp_flag
& NLP_NPR_2B_DISC
) {
2954 spin_lock_irq(shost
->host_lock
);
2955 nlp
->nlp_flag
&= ~NLP_NPR_2B_DISC
;
2956 spin_unlock_irq(shost
->host_lock
);
2957 if (vport
->num_disc_nodes
) {
2958 if (vport
->port_state
< LPFC_VPORT_READY
) {
2959 /* Check if there are more ADISCs to be sent */
2960 lpfc_more_adisc(vport
);
2962 /* Check if there are more PLOGIs to be sent */
2963 lpfc_more_plogi(vport
);
2964 if (vport
->num_disc_nodes
== 0) {
2965 spin_lock_irq(shost
->host_lock
);
2966 vport
->fc_flag
&= ~FC_NDISC_ACTIVE
;
2967 spin_unlock_irq(shost
->host_lock
);
2968 lpfc_can_disctmo(vport
);
2969 lpfc_end_rscn(vport
);
2978 * lpfc_els_retry_delay - Timer function with a ndlp delayed function timer
2979 * @ptr: holder for the pointer to the timer function associated data (ndlp).
2981 * This routine is invoked by the ndlp delayed-function timer to check
2982 * whether there is any pending ELS retry event(s) with the node. If not, it
2983 * simply returns. Otherwise, if there is at least one ELS delayed event, it
2984 * adds the delayed events to the HBA work list and invokes the
2985 * lpfc_worker_wake_up() routine to wake up worker thread to process the
2986 * event. Note that lpfc_nlp_get() is called before posting the event to
2987 * the work list to hold reference count of ndlp so that it guarantees the
2988 * reference to ndlp will still be available when the worker thread gets
2989 * to the event associated with the ndlp.
2992 lpfc_els_retry_delay(unsigned long ptr
)
2994 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) ptr
;
2995 struct lpfc_vport
*vport
= ndlp
->vport
;
2996 struct lpfc_hba
*phba
= vport
->phba
;
2997 unsigned long flags
;
2998 struct lpfc_work_evt
*evtp
= &ndlp
->els_retry_evt
;
3000 spin_lock_irqsave(&phba
->hbalock
, flags
);
3001 if (!list_empty(&evtp
->evt_listp
)) {
3002 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
3006 /* We need to hold the node by incrementing the reference
3007 * count until the queued work is done
3009 evtp
->evt_arg1
= lpfc_nlp_get(ndlp
);
3010 if (evtp
->evt_arg1
) {
3011 evtp
->evt
= LPFC_EVT_ELS_RETRY
;
3012 list_add_tail(&evtp
->evt_listp
, &phba
->work_list
);
3013 lpfc_worker_wake_up(phba
);
3015 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
3020 * lpfc_els_retry_delay_handler - Work thread handler for ndlp delayed function
3021 * @ndlp: pointer to a node-list data structure.
3023 * This routine is the worker-thread handler for processing the @ndlp delayed
3024 * event(s), posted by the lpfc_els_retry_delay() routine. It simply retrieves
3025 * the last ELS command from the associated ndlp and invokes the proper ELS
3026 * function according to the delayed ELS command to retry the command.
3029 lpfc_els_retry_delay_handler(struct lpfc_nodelist
*ndlp
)
3031 struct lpfc_vport
*vport
= ndlp
->vport
;
3032 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
3033 uint32_t cmd
, retry
;
3035 spin_lock_irq(shost
->host_lock
);
3036 cmd
= ndlp
->nlp_last_elscmd
;
3037 ndlp
->nlp_last_elscmd
= 0;
3039 if (!(ndlp
->nlp_flag
& NLP_DELAY_TMO
)) {
3040 spin_unlock_irq(shost
->host_lock
);
3044 ndlp
->nlp_flag
&= ~NLP_DELAY_TMO
;
3045 spin_unlock_irq(shost
->host_lock
);
3047 * If a discovery event readded nlp_delayfunc after timer
3048 * firing and before processing the timer, cancel the
3051 del_timer_sync(&ndlp
->nlp_delayfunc
);
3052 retry
= ndlp
->nlp_retry
;
3053 ndlp
->nlp_retry
= 0;
3057 lpfc_issue_els_flogi(vport
, ndlp
, retry
);
3060 if (!lpfc_issue_els_plogi(vport
, ndlp
->nlp_DID
, retry
)) {
3061 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3062 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_PLOGI_ISSUE
);
3066 if (!lpfc_issue_els_adisc(vport
, ndlp
, retry
)) {
3067 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3068 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_ADISC_ISSUE
);
3072 if (!lpfc_issue_els_prli(vport
, ndlp
, retry
)) {
3073 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3074 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_PRLI_ISSUE
);
3078 if (!lpfc_issue_els_logo(vport
, ndlp
, retry
)) {
3079 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3080 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_LOGO_ISSUE
);
3084 if (!(vport
->fc_flag
& FC_VPORT_NEEDS_INIT_VPI
))
3085 lpfc_issue_els_fdisc(vport
, ndlp
, retry
);
3092 * lpfc_els_retry - Make retry decision on an els command iocb
3093 * @phba: pointer to lpfc hba data structure.
3094 * @cmdiocb: pointer to lpfc command iocb data structure.
3095 * @rspiocb: pointer to lpfc response iocb data structure.
3097 * This routine makes a retry decision on an ELS command IOCB, which has
3098 * failed. The following ELS IOCBs use this function for retrying the command
3099 * when previously issued command responsed with error status: FLOGI, PLOGI,
3100 * PRLI, ADISC, LOGO, and FDISC. Based on the ELS command type and the
3101 * returned error status, it makes the decision whether a retry shall be
3102 * issued for the command, and whether a retry shall be made immediately or
3103 * delayed. In the former case, the corresponding ELS command issuing-function
3104 * is called to retry the command. In the later case, the ELS command shall
3105 * be posted to the ndlp delayed event and delayed function timer set to the
3106 * ndlp for the delayed command issusing.
3109 * 0 - No retry of els command is made
3110 * 1 - Immediate or delayed retry of els command is made
3113 lpfc_els_retry(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
3114 struct lpfc_iocbq
*rspiocb
)
3116 struct lpfc_vport
*vport
= cmdiocb
->vport
;
3117 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
3118 IOCB_t
*irsp
= &rspiocb
->iocb
;
3119 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) cmdiocb
->context1
;
3120 struct lpfc_dmabuf
*pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
3123 int retry
= 0, maxretry
= lpfc_max_els_tries
, delay
= 0;
3129 /* Note: context2 may be 0 for internal driver abort
3130 * of delays ELS command.
3133 if (pcmd
&& pcmd
->virt
) {
3134 elscmd
= (uint32_t *) (pcmd
->virt
);
3138 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
))
3139 did
= ndlp
->nlp_DID
;
3141 /* We should only hit this case for retrying PLOGI */
3142 did
= irsp
->un
.elsreq64
.remoteID
;
3143 ndlp
= lpfc_findnode_did(vport
, did
);
3144 if ((!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
))
3145 && (cmd
!= ELS_CMD_PLOGI
))
3149 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
3150 "Retry ELS: wd7:x%x wd4:x%x did:x%x",
3151 *(((uint32_t *) irsp
) + 7), irsp
->un
.ulpWord
[4], ndlp
->nlp_DID
);
3153 switch (irsp
->ulpStatus
) {
3154 case IOSTAT_FCP_RSP_ERROR
:
3156 case IOSTAT_REMOTE_STOP
:
3157 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
3158 /* This IO was aborted by the target, we don't
3159 * know the rxid and because we did not send the
3160 * ABTS we cannot generate and RRQ.
3162 lpfc_set_rrq_active(phba
, ndlp
,
3163 cmdiocb
->sli4_lxritag
, 0, 0);
3166 case IOSTAT_LOCAL_REJECT
:
3167 switch ((irsp
->un
.ulpWord
[4] & IOERR_PARAM_MASK
)) {
3168 case IOERR_LOOP_OPEN_FAILURE
:
3169 if (cmd
== ELS_CMD_FLOGI
) {
3170 if (PCI_DEVICE_ID_HORNET
==
3171 phba
->pcidev
->device
) {
3172 phba
->fc_topology
= LPFC_TOPOLOGY_LOOP
;
3173 phba
->pport
->fc_myDID
= 0;
3174 phba
->alpa_map
[0] = 0;
3175 phba
->alpa_map
[1] = 0;
3178 if (cmd
== ELS_CMD_PLOGI
&& cmdiocb
->retry
== 0)
3183 case IOERR_ILLEGAL_COMMAND
:
3184 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
3185 "0124 Retry illegal cmd x%x "
3186 "retry:x%x delay:x%x\n",
3187 cmd
, cmdiocb
->retry
, delay
);
3189 /* All command's retry policy */
3191 if (cmdiocb
->retry
> 2)
3195 case IOERR_NO_RESOURCES
:
3196 logerr
= 1; /* HBA out of resources */
3198 if (cmdiocb
->retry
> 100)
3203 case IOERR_ILLEGAL_FRAME
:
3208 case IOERR_SEQUENCE_TIMEOUT
:
3209 case IOERR_INVALID_RPI
:
3210 if (cmd
== ELS_CMD_PLOGI
&&
3211 did
== NameServer_DID
) {
3212 /* Continue forever if plogi to */
3213 /* the nameserver fails */
3222 case IOSTAT_NPORT_RJT
:
3223 case IOSTAT_FABRIC_RJT
:
3224 if (irsp
->un
.ulpWord
[4] & RJT_UNAVAIL_TEMP
) {
3230 case IOSTAT_NPORT_BSY
:
3231 case IOSTAT_FABRIC_BSY
:
3232 logerr
= 1; /* Fabric / Remote NPort out of resources */
3237 stat
.un
.lsRjtError
= be32_to_cpu(irsp
->un
.ulpWord
[4]);
3238 /* Added for Vendor specifc support
3239 * Just keep retrying for these Rsn / Exp codes
3241 switch (stat
.un
.b
.lsRjtRsnCode
) {
3242 case LSRJT_UNABLE_TPC
:
3243 if (stat
.un
.b
.lsRjtRsnCodeExp
==
3244 LSEXP_CMD_IN_PROGRESS
) {
3245 if (cmd
== ELS_CMD_PLOGI
) {
3252 if (stat
.un
.b
.lsRjtRsnCodeExp
==
3253 LSEXP_CANT_GIVE_DATA
) {
3254 if (cmd
== ELS_CMD_PLOGI
) {
3261 if ((cmd
== ELS_CMD_PLOGI
) ||
3262 (cmd
== ELS_CMD_PRLI
)) {
3264 maxretry
= lpfc_max_els_tries
+ 1;
3268 if ((phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
3269 (cmd
== ELS_CMD_FDISC
) &&
3270 (stat
.un
.b
.lsRjtRsnCodeExp
== LSEXP_OUT_OF_RESOURCE
)){
3271 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
3272 "0125 FDISC Failed (x%x). "
3273 "Fabric out of resources\n",
3274 stat
.un
.lsRjtError
);
3275 lpfc_vport_set_state(vport
,
3276 FC_VPORT_NO_FABRIC_RSCS
);
3280 case LSRJT_LOGICAL_BSY
:
3281 if ((cmd
== ELS_CMD_PLOGI
) ||
3282 (cmd
== ELS_CMD_PRLI
)) {
3285 } else if (cmd
== ELS_CMD_FDISC
) {
3286 /* FDISC retry policy */
3288 if (cmdiocb
->retry
>= 32)
3294 case LSRJT_LOGICAL_ERR
:
3295 /* There are some cases where switches return this
3296 * error when they are not ready and should be returning
3297 * Logical Busy. We should delay every time.
3299 if (cmd
== ELS_CMD_FDISC
&&
3300 stat
.un
.b
.lsRjtRsnCodeExp
== LSEXP_PORT_LOGIN_REQ
) {
3306 case LSRJT_PROTOCOL_ERR
:
3307 if ((phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
3308 (cmd
== ELS_CMD_FDISC
) &&
3309 ((stat
.un
.b
.lsRjtRsnCodeExp
== LSEXP_INVALID_PNAME
) ||
3310 (stat
.un
.b
.lsRjtRsnCodeExp
== LSEXP_INVALID_NPORT_ID
))
3312 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
3313 "0122 FDISC Failed (x%x). "
3314 "Fabric Detected Bad WWN\n",
3315 stat
.un
.lsRjtError
);
3316 lpfc_vport_set_state(vport
,
3317 FC_VPORT_FABRIC_REJ_WWN
);
3323 case IOSTAT_INTERMED_RSP
:
3331 if (did
== FDMI_DID
)
3334 if ((cmd
== ELS_CMD_FLOGI
) &&
3335 (phba
->fc_topology
!= LPFC_TOPOLOGY_LOOP
) &&
3336 !lpfc_error_lost_link(irsp
)) {
3337 /* FLOGI retry policy */
3339 /* retry FLOGI forever */
3341 if (cmdiocb
->retry
>= 100)
3343 else if (cmdiocb
->retry
>= 32)
3345 } else if ((cmd
== ELS_CMD_FDISC
) && !lpfc_error_lost_link(irsp
)) {
3346 /* retry FDISCs every second up to devloss */
3348 maxretry
= vport
->cfg_devloss_tmo
;
3353 if (maxretry
&& (cmdiocb
->retry
>= maxretry
)) {
3354 phba
->fc_stat
.elsRetryExceeded
++;
3358 if ((vport
->load_flag
& FC_UNLOADING
) != 0)
3362 if ((cmd
== ELS_CMD_PLOGI
) || (cmd
== ELS_CMD_FDISC
)) {
3363 /* Stop retrying PLOGI and FDISC if in FCF discovery */
3364 if (phba
->fcf
.fcf_flag
& FCF_DISCOVERY
) {
3365 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
3366 "2849 Stop retry ELS command "
3367 "x%x to remote NPORT x%x, "
3368 "Data: x%x x%x\n", cmd
, did
,
3369 cmdiocb
->retry
, delay
);
3374 /* Retry ELS command <elsCmd> to remote NPORT <did> */
3375 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
3376 "0107 Retry ELS command x%x to remote "
3377 "NPORT x%x Data: x%x x%x\n",
3378 cmd
, did
, cmdiocb
->retry
, delay
);
3380 if (((cmd
== ELS_CMD_PLOGI
) || (cmd
== ELS_CMD_ADISC
)) &&
3381 ((irsp
->ulpStatus
!= IOSTAT_LOCAL_REJECT
) ||
3382 ((irsp
->un
.ulpWord
[4] & IOERR_PARAM_MASK
) !=
3383 IOERR_NO_RESOURCES
))) {
3384 /* Don't reset timer for no resources */
3386 /* If discovery / RSCN timer is running, reset it */
3387 if (timer_pending(&vport
->fc_disctmo
) ||
3388 (vport
->fc_flag
& FC_RSCN_MODE
))
3389 lpfc_set_disctmo(vport
);
3392 phba
->fc_stat
.elsXmitRetry
++;
3393 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
) && delay
) {
3394 phba
->fc_stat
.elsDelayRetry
++;
3395 ndlp
->nlp_retry
= cmdiocb
->retry
;
3397 /* delay is specified in milliseconds */
3398 mod_timer(&ndlp
->nlp_delayfunc
,
3399 jiffies
+ msecs_to_jiffies(delay
));
3400 spin_lock_irq(shost
->host_lock
);
3401 ndlp
->nlp_flag
|= NLP_DELAY_TMO
;
3402 spin_unlock_irq(shost
->host_lock
);
3404 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3405 if (cmd
== ELS_CMD_PRLI
)
3406 lpfc_nlp_set_state(vport
, ndlp
,
3407 NLP_STE_PRLI_ISSUE
);
3409 lpfc_nlp_set_state(vport
, ndlp
,
3411 ndlp
->nlp_last_elscmd
= cmd
;
3417 lpfc_issue_els_flogi(vport
, ndlp
, cmdiocb
->retry
);
3420 lpfc_issue_els_fdisc(vport
, ndlp
, cmdiocb
->retry
);
3423 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
)) {
3424 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3425 lpfc_nlp_set_state(vport
, ndlp
,
3426 NLP_STE_PLOGI_ISSUE
);
3428 lpfc_issue_els_plogi(vport
, did
, cmdiocb
->retry
);
3431 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3432 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_ADISC_ISSUE
);
3433 lpfc_issue_els_adisc(vport
, ndlp
, cmdiocb
->retry
);
3436 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3437 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_PRLI_ISSUE
);
3438 lpfc_issue_els_prli(vport
, ndlp
, cmdiocb
->retry
);
3441 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3442 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_LOGO_ISSUE
);
3443 lpfc_issue_els_logo(vport
, ndlp
, cmdiocb
->retry
);
3447 /* No retry ELS command <elsCmd> to remote NPORT <did> */
3449 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
3450 "0137 No retry ELS command x%x to remote "
3451 "NPORT x%x: Out of Resources: Error:x%x/%x\n",
3452 cmd
, did
, irsp
->ulpStatus
,
3453 irsp
->un
.ulpWord
[4]);
3456 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
3457 "0108 No retry ELS command x%x to remote "
3458 "NPORT x%x Retried:%d Error:x%x/%x\n",
3459 cmd
, did
, cmdiocb
->retry
, irsp
->ulpStatus
,
3460 irsp
->un
.ulpWord
[4]);
3466 * lpfc_els_free_data - Free lpfc dma buffer and data structure with an iocb
3467 * @phba: pointer to lpfc hba data structure.
3468 * @buf_ptr1: pointer to the lpfc DMA buffer data structure.
3470 * This routine releases the lpfc DMA (Direct Memory Access) buffer(s)
3471 * associated with a command IOCB back to the lpfc DMA buffer pool. It first
3472 * checks to see whether there is a lpfc DMA buffer associated with the
3473 * response of the command IOCB. If so, it will be released before releasing
3474 * the lpfc DMA buffer associated with the IOCB itself.
3477 * 0 - Successfully released lpfc DMA buffer (currently, always return 0)
3480 lpfc_els_free_data(struct lpfc_hba
*phba
, struct lpfc_dmabuf
*buf_ptr1
)
3482 struct lpfc_dmabuf
*buf_ptr
;
3484 /* Free the response before processing the command. */
3485 if (!list_empty(&buf_ptr1
->list
)) {
3486 list_remove_head(&buf_ptr1
->list
, buf_ptr
,
3489 lpfc_mbuf_free(phba
, buf_ptr
->virt
, buf_ptr
->phys
);
3492 lpfc_mbuf_free(phba
, buf_ptr1
->virt
, buf_ptr1
->phys
);
3498 * lpfc_els_free_bpl - Free lpfc dma buffer and data structure with bpl
3499 * @phba: pointer to lpfc hba data structure.
3500 * @buf_ptr: pointer to the lpfc dma buffer data structure.
3502 * This routine releases the lpfc Direct Memory Access (DMA) buffer
3503 * associated with a Buffer Pointer List (BPL) back to the lpfc DMA buffer
3507 * 0 - Successfully released lpfc DMA buffer (currently, always return 0)
3510 lpfc_els_free_bpl(struct lpfc_hba
*phba
, struct lpfc_dmabuf
*buf_ptr
)
3512 lpfc_mbuf_free(phba
, buf_ptr
->virt
, buf_ptr
->phys
);
3518 * lpfc_els_free_iocb - Free a command iocb and its associated resources
3519 * @phba: pointer to lpfc hba data structure.
3520 * @elsiocb: pointer to lpfc els command iocb data structure.
3522 * This routine frees a command IOCB and its associated resources. The
3523 * command IOCB data structure contains the reference to various associated
3524 * resources, these fields must be set to NULL if the associated reference
3526 * context1 - reference to ndlp
3527 * context2 - reference to cmd
3528 * context2->next - reference to rsp
3529 * context3 - reference to bpl
3531 * It first properly decrements the reference count held on ndlp for the
3532 * IOCB completion callback function. If LPFC_DELAY_MEM_FREE flag is not
3533 * set, it invokes the lpfc_els_free_data() routine to release the Direct
3534 * Memory Access (DMA) buffers associated with the IOCB. Otherwise, it
3535 * adds the DMA buffer the @phba data structure for the delayed release.
3536 * If reference to the Buffer Pointer List (BPL) is present, the
3537 * lpfc_els_free_bpl() routine is invoked to release the DMA memory
3538 * associated with BPL. Finally, the lpfc_sli_release_iocbq() routine is
3539 * invoked to release the IOCB data structure back to @phba IOCBQ list.
3542 * 0 - Success (currently, always return 0)
3545 lpfc_els_free_iocb(struct lpfc_hba
*phba
, struct lpfc_iocbq
*elsiocb
)
3547 struct lpfc_dmabuf
*buf_ptr
, *buf_ptr1
;
3548 struct lpfc_nodelist
*ndlp
;
3550 ndlp
= (struct lpfc_nodelist
*)elsiocb
->context1
;
3552 if (ndlp
->nlp_flag
& NLP_DEFER_RM
) {
3555 /* If the ndlp is not being used by another discovery
3558 if (!lpfc_nlp_not_used(ndlp
)) {
3559 /* If ndlp is being used by another discovery
3560 * thread, just clear NLP_DEFER_RM
3562 ndlp
->nlp_flag
&= ~NLP_DEFER_RM
;
3567 elsiocb
->context1
= NULL
;
3569 /* context2 = cmd, context2->next = rsp, context3 = bpl */
3570 if (elsiocb
->context2
) {
3571 if (elsiocb
->iocb_flag
& LPFC_DELAY_MEM_FREE
) {
3572 /* Firmware could still be in progress of DMAing
3573 * payload, so don't free data buffer till after
3576 elsiocb
->iocb_flag
&= ~LPFC_DELAY_MEM_FREE
;
3577 buf_ptr
= elsiocb
->context2
;
3578 elsiocb
->context2
= NULL
;
3581 spin_lock_irq(&phba
->hbalock
);
3582 if (!list_empty(&buf_ptr
->list
)) {
3583 list_remove_head(&buf_ptr
->list
,
3584 buf_ptr1
, struct lpfc_dmabuf
,
3586 INIT_LIST_HEAD(&buf_ptr1
->list
);
3587 list_add_tail(&buf_ptr1
->list
,
3591 INIT_LIST_HEAD(&buf_ptr
->list
);
3592 list_add_tail(&buf_ptr
->list
, &phba
->elsbuf
);
3594 spin_unlock_irq(&phba
->hbalock
);
3597 buf_ptr1
= (struct lpfc_dmabuf
*) elsiocb
->context2
;
3598 lpfc_els_free_data(phba
, buf_ptr1
);
3602 if (elsiocb
->context3
) {
3603 buf_ptr
= (struct lpfc_dmabuf
*) elsiocb
->context3
;
3604 lpfc_els_free_bpl(phba
, buf_ptr
);
3606 lpfc_sli_release_iocbq(phba
, elsiocb
);
3611 * lpfc_cmpl_els_logo_acc - Completion callback function to logo acc response
3612 * @phba: pointer to lpfc hba data structure.
3613 * @cmdiocb: pointer to lpfc command iocb data structure.
3614 * @rspiocb: pointer to lpfc response iocb data structure.
3616 * This routine is the completion callback function to the Logout (LOGO)
3617 * Accept (ACC) Response ELS command. This routine is invoked to indicate
3618 * the completion of the LOGO process. It invokes the lpfc_nlp_not_used() to
3619 * release the ndlp if it has the last reference remaining (reference count
3620 * is 1). If succeeded (meaning ndlp released), it sets the IOCB context1
3621 * field to NULL to inform the following lpfc_els_free_iocb() routine no
3622 * ndlp reference count needs to be decremented. Otherwise, the ndlp
3623 * reference use-count shall be decremented by the lpfc_els_free_iocb()
3624 * routine. Finally, the lpfc_els_free_iocb() is invoked to release the
3625 * IOCB data structure.
3628 lpfc_cmpl_els_logo_acc(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
3629 struct lpfc_iocbq
*rspiocb
)
3631 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) cmdiocb
->context1
;
3632 struct lpfc_vport
*vport
= cmdiocb
->vport
;
3635 irsp
= &rspiocb
->iocb
;
3636 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
3637 "ACC LOGO cmpl: status:x%x/x%x did:x%x",
3638 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4], ndlp
->nlp_DID
);
3639 /* ACC to LOGO completes to NPort <nlp_DID> */
3640 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
3641 "0109 ACC to LOGO completes to NPort x%x "
3642 "Data: x%x x%x x%x\n",
3643 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
3646 if (ndlp
->nlp_state
== NLP_STE_NPR_NODE
) {
3647 /* NPort Recovery mode or node is just allocated */
3648 if (!lpfc_nlp_not_used(ndlp
)) {
3649 /* If the ndlp is being used by another discovery
3650 * thread, just unregister the RPI.
3652 lpfc_unreg_rpi(vport
, ndlp
);
3654 /* Indicate the node has already released, should
3655 * not reference to it from within lpfc_els_free_iocb.
3657 cmdiocb
->context1
= NULL
;
3662 * The driver received a LOGO from the rport and has ACK'd it.
3663 * At this point, the driver is done so release the IOCB
3665 lpfc_els_free_iocb(phba
, cmdiocb
);
3668 * Remove the ndlp reference if it's a fabric node that has
3669 * sent us an unsolicted LOGO.
3671 if (ndlp
->nlp_type
& NLP_FABRIC
)
3678 * lpfc_mbx_cmpl_dflt_rpi - Completion callbk func for unreg dflt rpi mbox cmd
3679 * @phba: pointer to lpfc hba data structure.
3680 * @pmb: pointer to the driver internal queue element for mailbox command.
3682 * This routine is the completion callback function for unregister default
3683 * RPI (Remote Port Index) mailbox command to the @phba. It simply releases
3684 * the associated lpfc Direct Memory Access (DMA) buffer back to the pool and
3685 * decrements the ndlp reference count held for this completion callback
3686 * function. After that, it invokes the lpfc_nlp_not_used() to check
3687 * whether there is only one reference left on the ndlp. If so, it will
3688 * perform one more decrement and trigger the release of the ndlp.
3691 lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
3693 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
3694 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
3696 pmb
->context1
= NULL
;
3697 pmb
->context2
= NULL
;
3699 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3701 mempool_free(pmb
, phba
->mbox_mem_pool
);
3703 lpfc_printf_vlog(ndlp
->vport
, KERN_INFO
, LOG_NODE
,
3704 "0006 rpi%x DID:%x flg:%x %d map:%x %p\n",
3705 ndlp
->nlp_rpi
, ndlp
->nlp_DID
, ndlp
->nlp_flag
,
3706 atomic_read(&ndlp
->kref
.refcount
),
3707 ndlp
->nlp_usg_map
, ndlp
);
3708 if (NLP_CHK_NODE_ACT(ndlp
)) {
3710 /* This is the end of the default RPI cleanup logic for
3711 * this ndlp. If no other discovery threads are using
3712 * this ndlp, free all resources associated with it.
3714 lpfc_nlp_not_used(ndlp
);
3716 lpfc_drop_node(ndlp
->vport
, ndlp
);
3724 * lpfc_cmpl_els_rsp - Completion callback function for els response iocb cmd
3725 * @phba: pointer to lpfc hba data structure.
3726 * @cmdiocb: pointer to lpfc command iocb data structure.
3727 * @rspiocb: pointer to lpfc response iocb data structure.
3729 * This routine is the completion callback function for ELS Response IOCB
3730 * command. In normal case, this callback function just properly sets the
3731 * nlp_flag bitmap in the ndlp data structure, if the mbox command reference
3732 * field in the command IOCB is not NULL, the referred mailbox command will
3733 * be send out, and then invokes the lpfc_els_free_iocb() routine to release
3734 * the IOCB. Under error conditions, such as when a LS_RJT is returned or a
3735 * link down event occurred during the discovery, the lpfc_nlp_not_used()
3736 * routine shall be invoked trying to release the ndlp if no other threads
3737 * are currently referring it.
3740 lpfc_cmpl_els_rsp(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
3741 struct lpfc_iocbq
*rspiocb
)
3743 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) cmdiocb
->context1
;
3744 struct lpfc_vport
*vport
= ndlp
? ndlp
->vport
: NULL
;
3745 struct Scsi_Host
*shost
= vport
? lpfc_shost_from_vport(vport
) : NULL
;
3748 LPFC_MBOXQ_t
*mbox
= NULL
;
3749 struct lpfc_dmabuf
*mp
= NULL
;
3750 uint32_t ls_rjt
= 0;
3752 irsp
= &rspiocb
->iocb
;
3754 if (cmdiocb
->context_un
.mbox
)
3755 mbox
= cmdiocb
->context_un
.mbox
;
3757 /* First determine if this is a LS_RJT cmpl. Note, this callback
3758 * function can have cmdiocb->contest1 (ndlp) field set to NULL.
3760 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) cmdiocb
->context2
)->virt
);
3761 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
) &&
3762 (*((uint32_t *) (pcmd
)) == ELS_CMD_LS_RJT
)) {
3763 /* A LS_RJT associated with Default RPI cleanup has its own
3764 * separate code path.
3766 if (!(ndlp
->nlp_flag
& NLP_RM_DFLT_RPI
))
3770 /* Check to see if link went down during discovery */
3771 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
) || lpfc_els_chk_latt(vport
)) {
3773 mp
= (struct lpfc_dmabuf
*) mbox
->context1
;
3775 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3778 mempool_free(mbox
, phba
->mbox_mem_pool
);
3780 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
) &&
3781 (ndlp
->nlp_flag
& NLP_RM_DFLT_RPI
))
3782 if (lpfc_nlp_not_used(ndlp
)) {
3784 /* Indicate the node has already released,
3785 * should not reference to it from within
3786 * the routine lpfc_els_free_iocb.
3788 cmdiocb
->context1
= NULL
;
3793 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
3794 "ELS rsp cmpl: status:x%x/x%x did:x%x",
3795 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
3796 cmdiocb
->iocb
.un
.elsreq64
.remoteID
);
3797 /* ELS response tag <ulpIoTag> completes */
3798 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
3799 "0110 ELS response tag x%x completes "
3800 "Data: x%x x%x x%x x%x x%x x%x x%x\n",
3801 cmdiocb
->iocb
.ulpIoTag
, rspiocb
->iocb
.ulpStatus
,
3802 rspiocb
->iocb
.un
.ulpWord
[4], rspiocb
->iocb
.ulpTimeout
,
3803 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
3806 if ((rspiocb
->iocb
.ulpStatus
== 0)
3807 && (ndlp
->nlp_flag
& NLP_ACC_REGLOGIN
)) {
3808 lpfc_unreg_rpi(vport
, ndlp
);
3809 /* Increment reference count to ndlp to hold the
3810 * reference to ndlp for the callback function.
3812 mbox
->context2
= lpfc_nlp_get(ndlp
);
3813 mbox
->vport
= vport
;
3814 if (ndlp
->nlp_flag
& NLP_RM_DFLT_RPI
) {
3815 mbox
->mbox_flag
|= LPFC_MBX_IMED_UNREG
;
3816 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_dflt_rpi
;
3819 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_reg_login
;
3820 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3821 lpfc_nlp_set_state(vport
, ndlp
,
3822 NLP_STE_REG_LOGIN_ISSUE
);
3824 if (lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
)
3825 != MBX_NOT_FINISHED
)
3828 /* Decrement the ndlp reference count we
3829 * set for this failed mailbox command.
3833 /* ELS rsp: Cannot issue reg_login for <NPortid> */
3834 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
3835 "0138 ELS rsp: Cannot issue reg_login for x%x "
3836 "Data: x%x x%x x%x\n",
3837 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
3840 if (lpfc_nlp_not_used(ndlp
)) {
3842 /* Indicate node has already been released,
3843 * should not reference to it from within
3844 * the routine lpfc_els_free_iocb.
3846 cmdiocb
->context1
= NULL
;
3849 /* Do not drop node for lpfc_els_abort'ed ELS cmds */
3850 if (!lpfc_error_lost_link(irsp
) &&
3851 ndlp
->nlp_flag
& NLP_ACC_REGLOGIN
) {
3852 if (lpfc_nlp_not_used(ndlp
)) {
3854 /* Indicate node has already been
3855 * released, should not reference
3856 * to it from within the routine
3857 * lpfc_els_free_iocb.
3859 cmdiocb
->context1
= NULL
;
3863 mp
= (struct lpfc_dmabuf
*) mbox
->context1
;
3865 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3868 mempool_free(mbox
, phba
->mbox_mem_pool
);
3871 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
)) {
3872 spin_lock_irq(shost
->host_lock
);
3873 ndlp
->nlp_flag
&= ~(NLP_ACC_REGLOGIN
| NLP_RM_DFLT_RPI
);
3874 spin_unlock_irq(shost
->host_lock
);
3876 /* If the node is not being used by another discovery thread,
3877 * and we are sending a reject, we are done with it.
3878 * Release driver reference count here and free associated
3882 if (lpfc_nlp_not_used(ndlp
))
3883 /* Indicate node has already been released,
3884 * should not reference to it from within
3885 * the routine lpfc_els_free_iocb.
3887 cmdiocb
->context1
= NULL
;
3890 lpfc_els_free_iocb(phba
, cmdiocb
);
3895 * lpfc_els_rsp_acc - Prepare and issue an acc response iocb command
3896 * @vport: pointer to a host virtual N_Port data structure.
3897 * @flag: the els command code to be accepted.
3898 * @oldiocb: pointer to the original lpfc command iocb data structure.
3899 * @ndlp: pointer to a node-list data structure.
3900 * @mbox: pointer to the driver internal queue element for mailbox command.
3902 * This routine prepares and issues an Accept (ACC) response IOCB
3903 * command. It uses the @flag to properly set up the IOCB field for the
3904 * specific ACC response command to be issued and invokes the
3905 * lpfc_sli_issue_iocb() routine to send out ACC response IOCB. If a
3906 * @mbox pointer is passed in, it will be put into the context_un.mbox
3907 * field of the IOCB for the completion callback function to issue the
3908 * mailbox command to the HBA later when callback is invoked.
3910 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
3911 * will be incremented by 1 for holding the ndlp and the reference to ndlp
3912 * will be stored into the context1 field of the IOCB for the completion
3913 * callback function to the corresponding response ELS IOCB command.
3916 * 0 - Successfully issued acc response
3917 * 1 - Failed to issue acc response
3920 lpfc_els_rsp_acc(struct lpfc_vport
*vport
, uint32_t flag
,
3921 struct lpfc_iocbq
*oldiocb
, struct lpfc_nodelist
*ndlp
,
3924 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
3925 struct lpfc_hba
*phba
= vport
->phba
;
3928 struct lpfc_iocbq
*elsiocb
;
3929 struct lpfc_sli
*psli
;
3933 ELS_PKT
*els_pkt_ptr
;
3936 oldcmd
= &oldiocb
->iocb
;
3940 cmdsize
= sizeof(uint32_t);
3941 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
,
3942 ndlp
, ndlp
->nlp_DID
, ELS_CMD_ACC
);
3944 spin_lock_irq(shost
->host_lock
);
3945 ndlp
->nlp_flag
&= ~NLP_LOGO_ACC
;
3946 spin_unlock_irq(shost
->host_lock
);
3950 icmd
= &elsiocb
->iocb
;
3951 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
3952 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
3953 pcmd
= (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
3954 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
3955 pcmd
+= sizeof(uint32_t);
3957 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
3958 "Issue ACC: did:x%x flg:x%x",
3959 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
3962 cmdsize
= (sizeof(struct serv_parm
) + sizeof(uint32_t));
3963 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
,
3964 ndlp
, ndlp
->nlp_DID
, ELS_CMD_ACC
);
3968 icmd
= &elsiocb
->iocb
;
3969 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
3970 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
3971 pcmd
= (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
3974 elsiocb
->context_un
.mbox
= mbox
;
3976 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
3977 pcmd
+= sizeof(uint32_t);
3978 memcpy(pcmd
, &vport
->fc_sparam
, sizeof(struct serv_parm
));
3980 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
3981 "Issue ACC PLOGI: did:x%x flg:x%x",
3982 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
3985 cmdsize
= sizeof(uint32_t) + sizeof(PRLO
);
3986 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
,
3987 ndlp
, ndlp
->nlp_DID
, ELS_CMD_PRLO
);
3991 icmd
= &elsiocb
->iocb
;
3992 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
3993 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
3994 pcmd
= (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
3996 memcpy(pcmd
, ((struct lpfc_dmabuf
*) oldiocb
->context2
)->virt
,
3997 sizeof(uint32_t) + sizeof(PRLO
));
3998 *((uint32_t *) (pcmd
)) = ELS_CMD_PRLO_ACC
;
3999 els_pkt_ptr
= (ELS_PKT
*) pcmd
;
4000 els_pkt_ptr
->un
.prlo
.acceptRspCode
= PRLO_REQ_EXECUTED
;
4002 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
4003 "Issue ACC PRLO: did:x%x flg:x%x",
4004 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
4009 /* Xmit ELS ACC response tag <ulpIoTag> */
4010 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4011 "0128 Xmit ELS ACC response tag x%x, XRI: x%x, "
4012 "DID: x%x, nlp_flag: x%x nlp_state: x%x RPI: x%x "
4014 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
4015 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
4016 ndlp
->nlp_rpi
, vport
->fc_flag
);
4017 if (ndlp
->nlp_flag
& NLP_LOGO_ACC
) {
4018 spin_lock_irq(shost
->host_lock
);
4019 ndlp
->nlp_flag
&= ~NLP_LOGO_ACC
;
4020 spin_unlock_irq(shost
->host_lock
);
4021 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_logo_acc
;
4023 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
4026 phba
->fc_stat
.elsXmitACC
++;
4027 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
4028 if (rc
== IOCB_ERROR
) {
4029 lpfc_els_free_iocb(phba
, elsiocb
);
4036 * lpfc_els_rsp_reject - Propare and issue a rjt response iocb command
4037 * @vport: pointer to a virtual N_Port data structure.
4039 * @oldiocb: pointer to the original lpfc command iocb data structure.
4040 * @ndlp: pointer to a node-list data structure.
4041 * @mbox: pointer to the driver internal queue element for mailbox command.
4043 * This routine prepares and issue an Reject (RJT) response IOCB
4044 * command. If a @mbox pointer is passed in, it will be put into the
4045 * context_un.mbox field of the IOCB for the completion callback function
4046 * to issue to the HBA later.
4048 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4049 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4050 * will be stored into the context1 field of the IOCB for the completion
4051 * callback function to the reject response ELS IOCB command.
4054 * 0 - Successfully issued reject response
4055 * 1 - Failed to issue reject response
4058 lpfc_els_rsp_reject(struct lpfc_vport
*vport
, uint32_t rejectError
,
4059 struct lpfc_iocbq
*oldiocb
, struct lpfc_nodelist
*ndlp
,
4062 struct lpfc_hba
*phba
= vport
->phba
;
4065 struct lpfc_iocbq
*elsiocb
;
4066 struct lpfc_sli
*psli
;
4072 cmdsize
= 2 * sizeof(uint32_t);
4073 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
, ndlp
,
4074 ndlp
->nlp_DID
, ELS_CMD_LS_RJT
);
4078 icmd
= &elsiocb
->iocb
;
4079 oldcmd
= &oldiocb
->iocb
;
4080 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
4081 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
4082 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
4084 *((uint32_t *) (pcmd
)) = ELS_CMD_LS_RJT
;
4085 pcmd
+= sizeof(uint32_t);
4086 *((uint32_t *) (pcmd
)) = rejectError
;
4089 elsiocb
->context_un
.mbox
= mbox
;
4091 /* Xmit ELS RJT <err> response tag <ulpIoTag> */
4092 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4093 "0129 Xmit ELS RJT x%x response tag x%x "
4094 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
4096 rejectError
, elsiocb
->iotag
,
4097 elsiocb
->iocb
.ulpContext
, ndlp
->nlp_DID
,
4098 ndlp
->nlp_flag
, ndlp
->nlp_state
, ndlp
->nlp_rpi
);
4099 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
4100 "Issue LS_RJT: did:x%x flg:x%x err:x%x",
4101 ndlp
->nlp_DID
, ndlp
->nlp_flag
, rejectError
);
4103 phba
->fc_stat
.elsXmitLSRJT
++;
4104 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
4105 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
4107 if (rc
== IOCB_ERROR
) {
4108 lpfc_els_free_iocb(phba
, elsiocb
);
4115 * lpfc_els_rsp_adisc_acc - Prepare and issue acc response to adisc iocb cmd
4116 * @vport: pointer to a virtual N_Port data structure.
4117 * @oldiocb: pointer to the original lpfc command iocb data structure.
4118 * @ndlp: pointer to a node-list data structure.
4120 * This routine prepares and issues an Accept (ACC) response to Address
4121 * Discover (ADISC) ELS command. It simply prepares the payload of the IOCB
4122 * and invokes the lpfc_sli_issue_iocb() routine to send out the command.
4124 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4125 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4126 * will be stored into the context1 field of the IOCB for the completion
4127 * callback function to the ADISC Accept response ELS IOCB command.
4130 * 0 - Successfully issued acc adisc response
4131 * 1 - Failed to issue adisc acc response
4134 lpfc_els_rsp_adisc_acc(struct lpfc_vport
*vport
, struct lpfc_iocbq
*oldiocb
,
4135 struct lpfc_nodelist
*ndlp
)
4137 struct lpfc_hba
*phba
= vport
->phba
;
4139 IOCB_t
*icmd
, *oldcmd
;
4140 struct lpfc_iocbq
*elsiocb
;
4145 cmdsize
= sizeof(uint32_t) + sizeof(ADISC
);
4146 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
, ndlp
,
4147 ndlp
->nlp_DID
, ELS_CMD_ACC
);
4151 icmd
= &elsiocb
->iocb
;
4152 oldcmd
= &oldiocb
->iocb
;
4153 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
4154 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
4156 /* Xmit ADISC ACC response tag <ulpIoTag> */
4157 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4158 "0130 Xmit ADISC ACC response iotag x%x xri: "
4159 "x%x, did x%x, nlp_flag x%x, nlp_state x%x rpi x%x\n",
4160 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
4161 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
4163 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
4165 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
4166 pcmd
+= sizeof(uint32_t);
4168 ap
= (ADISC
*) (pcmd
);
4169 ap
->hardAL_PA
= phba
->fc_pref_ALPA
;
4170 memcpy(&ap
->portName
, &vport
->fc_portname
, sizeof(struct lpfc_name
));
4171 memcpy(&ap
->nodeName
, &vport
->fc_nodename
, sizeof(struct lpfc_name
));
4172 ap
->DID
= be32_to_cpu(vport
->fc_myDID
);
4174 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
4175 "Issue ACC ADISC: did:x%x flg:x%x",
4176 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
4178 phba
->fc_stat
.elsXmitACC
++;
4179 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
4180 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
4181 if (rc
== IOCB_ERROR
) {
4182 lpfc_els_free_iocb(phba
, elsiocb
);
4189 * lpfc_els_rsp_prli_acc - Prepare and issue acc response to prli iocb cmd
4190 * @vport: pointer to a virtual N_Port data structure.
4191 * @oldiocb: pointer to the original lpfc command iocb data structure.
4192 * @ndlp: pointer to a node-list data structure.
4194 * This routine prepares and issues an Accept (ACC) response to Process
4195 * Login (PRLI) ELS command. It simply prepares the payload of the IOCB
4196 * and invokes the lpfc_sli_issue_iocb() routine to send out the command.
4198 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4199 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4200 * will be stored into the context1 field of the IOCB for the completion
4201 * callback function to the PRLI Accept response ELS IOCB command.
4204 * 0 - Successfully issued acc prli response
4205 * 1 - Failed to issue acc prli response
4208 lpfc_els_rsp_prli_acc(struct lpfc_vport
*vport
, struct lpfc_iocbq
*oldiocb
,
4209 struct lpfc_nodelist
*ndlp
)
4211 struct lpfc_hba
*phba
= vport
->phba
;
4216 struct lpfc_iocbq
*elsiocb
;
4217 struct lpfc_sli
*psli
;
4224 cmdsize
= sizeof(uint32_t) + sizeof(PRLI
);
4225 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
, ndlp
,
4226 ndlp
->nlp_DID
, (ELS_CMD_ACC
| (ELS_CMD_PRLI
& ~ELS_RSP_MASK
)));
4230 icmd
= &elsiocb
->iocb
;
4231 oldcmd
= &oldiocb
->iocb
;
4232 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
4233 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
4235 /* Xmit PRLI ACC response tag <ulpIoTag> */
4236 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4237 "0131 Xmit PRLI ACC response tag x%x xri x%x, "
4238 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
4239 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
4240 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
4242 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
4244 *((uint32_t *) (pcmd
)) = (ELS_CMD_ACC
| (ELS_CMD_PRLI
& ~ELS_RSP_MASK
));
4245 pcmd
+= sizeof(uint32_t);
4247 /* For PRLI, remainder of payload is PRLI parameter page */
4248 memset(pcmd
, 0, sizeof(PRLI
));
4250 npr
= (PRLI
*) pcmd
;
4253 * If the remote port is a target and our firmware version is 3.20 or
4254 * later, set the following bits for FC-TAPE support.
4256 if ((ndlp
->nlp_type
& NLP_FCP_TARGET
) &&
4257 (vpd
->rev
.feaLevelHigh
>= 0x02)) {
4258 npr
->ConfmComplAllowed
= 1;
4260 npr
->TaskRetryIdReq
= 1;
4263 npr
->acceptRspCode
= PRLI_REQ_EXECUTED
;
4264 npr
->estabImagePair
= 1;
4265 npr
->readXferRdyDis
= 1;
4266 npr
->ConfmComplAllowed
= 1;
4268 npr
->prliType
= PRLI_FCP_TYPE
;
4269 npr
->initiatorFunc
= 1;
4271 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
4272 "Issue ACC PRLI: did:x%x flg:x%x",
4273 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
4275 phba
->fc_stat
.elsXmitACC
++;
4276 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
4278 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
4279 if (rc
== IOCB_ERROR
) {
4280 lpfc_els_free_iocb(phba
, elsiocb
);
4287 * lpfc_els_rsp_rnid_acc - Issue rnid acc response iocb command
4288 * @vport: pointer to a virtual N_Port data structure.
4289 * @format: rnid command format.
4290 * @oldiocb: pointer to the original lpfc command iocb data structure.
4291 * @ndlp: pointer to a node-list data structure.
4293 * This routine issues a Request Node Identification Data (RNID) Accept
4294 * (ACC) response. It constructs the RNID ACC response command according to
4295 * the proper @format and then calls the lpfc_sli_issue_iocb() routine to
4296 * issue the response. Note that this command does not need to hold the ndlp
4297 * reference count for the callback. So, the ndlp reference count taken by
4298 * the lpfc_prep_els_iocb() routine is put back and the context1 field of
4299 * IOCB is set to NULL to indicate to the lpfc_els_free_iocb() routine that
4300 * there is no ndlp reference available.
4302 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4303 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4304 * will be stored into the context1 field of the IOCB for the completion
4305 * callback function. However, for the RNID Accept Response ELS command,
4306 * this is undone later by this routine after the IOCB is allocated.
4309 * 0 - Successfully issued acc rnid response
4310 * 1 - Failed to issue acc rnid response
4313 lpfc_els_rsp_rnid_acc(struct lpfc_vport
*vport
, uint8_t format
,
4314 struct lpfc_iocbq
*oldiocb
, struct lpfc_nodelist
*ndlp
)
4316 struct lpfc_hba
*phba
= vport
->phba
;
4318 IOCB_t
*icmd
, *oldcmd
;
4319 struct lpfc_iocbq
*elsiocb
;
4320 struct lpfc_sli
*psli
;
4326 cmdsize
= sizeof(uint32_t) + sizeof(uint32_t)
4327 + (2 * sizeof(struct lpfc_name
));
4329 cmdsize
+= sizeof(RNID_TOP_DISC
);
4331 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
, ndlp
,
4332 ndlp
->nlp_DID
, ELS_CMD_ACC
);
4336 icmd
= &elsiocb
->iocb
;
4337 oldcmd
= &oldiocb
->iocb
;
4338 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
4339 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
4341 /* Xmit RNID ACC response tag <ulpIoTag> */
4342 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4343 "0132 Xmit RNID ACC response tag x%x xri x%x\n",
4344 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
);
4345 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
4346 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
4347 pcmd
+= sizeof(uint32_t);
4349 memset(pcmd
, 0, sizeof(RNID
));
4350 rn
= (RNID
*) (pcmd
);
4351 rn
->Format
= format
;
4352 rn
->CommonLen
= (2 * sizeof(struct lpfc_name
));
4353 memcpy(&rn
->portName
, &vport
->fc_portname
, sizeof(struct lpfc_name
));
4354 memcpy(&rn
->nodeName
, &vport
->fc_nodename
, sizeof(struct lpfc_name
));
4357 rn
->SpecificLen
= 0;
4359 case RNID_TOPOLOGY_DISC
:
4360 rn
->SpecificLen
= sizeof(RNID_TOP_DISC
);
4361 memcpy(&rn
->un
.topologyDisc
.portName
,
4362 &vport
->fc_portname
, sizeof(struct lpfc_name
));
4363 rn
->un
.topologyDisc
.unitType
= RNID_HBA
;
4364 rn
->un
.topologyDisc
.physPort
= 0;
4365 rn
->un
.topologyDisc
.attachedNodes
= 0;
4369 rn
->SpecificLen
= 0;
4373 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
4374 "Issue ACC RNID: did:x%x flg:x%x",
4375 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
4377 phba
->fc_stat
.elsXmitACC
++;
4378 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
4380 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
4381 if (rc
== IOCB_ERROR
) {
4382 lpfc_els_free_iocb(phba
, elsiocb
);
4389 * lpfc_els_clear_rrq - Clear the rq that this rrq describes.
4390 * @vport: pointer to a virtual N_Port data structure.
4391 * @iocb: pointer to the lpfc command iocb data structure.
4392 * @ndlp: pointer to a node-list data structure.
4397 lpfc_els_clear_rrq(struct lpfc_vport
*vport
,
4398 struct lpfc_iocbq
*iocb
, struct lpfc_nodelist
*ndlp
)
4400 struct lpfc_hba
*phba
= vport
->phba
;
4405 struct lpfc_node_rrq
*prrq
;
4408 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) iocb
->context2
)->virt
);
4409 pcmd
+= sizeof(uint32_t);
4410 rrq
= (struct RRQ
*)pcmd
;
4411 rrq
->rrq_exchg
= be32_to_cpu(rrq
->rrq_exchg
);
4412 rxid
= bf_get(rrq_rxid
, rrq
);
4414 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4415 "2883 Clear RRQ for SID:x%x OXID:x%x RXID:x%x"
4417 be32_to_cpu(bf_get(rrq_did
, rrq
)),
4418 bf_get(rrq_oxid
, rrq
),
4420 iocb
->iotag
, iocb
->iocb
.ulpContext
);
4422 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
4423 "Clear RRQ: did:x%x flg:x%x exchg:x%.08x",
4424 ndlp
->nlp_DID
, ndlp
->nlp_flag
, rrq
->rrq_exchg
);
4425 if (vport
->fc_myDID
== be32_to_cpu(bf_get(rrq_did
, rrq
)))
4426 xri
= bf_get(rrq_oxid
, rrq
);
4429 prrq
= lpfc_get_active_rrq(vport
, xri
, ndlp
->nlp_DID
);
4431 lpfc_clr_rrq_active(phba
, xri
, prrq
);
4436 * lpfc_els_rsp_echo_acc - Issue echo acc response
4437 * @vport: pointer to a virtual N_Port data structure.
4438 * @data: pointer to echo data to return in the accept.
4439 * @oldiocb: pointer to the original lpfc command iocb data structure.
4440 * @ndlp: pointer to a node-list data structure.
4443 * 0 - Successfully issued acc echo response
4444 * 1 - Failed to issue acc echo response
4447 lpfc_els_rsp_echo_acc(struct lpfc_vport
*vport
, uint8_t *data
,
4448 struct lpfc_iocbq
*oldiocb
, struct lpfc_nodelist
*ndlp
)
4450 struct lpfc_hba
*phba
= vport
->phba
;
4451 struct lpfc_iocbq
*elsiocb
;
4452 struct lpfc_sli
*psli
;
4458 cmdsize
= oldiocb
->iocb
.unsli3
.rcvsli3
.acc_len
;
4460 /* The accumulated length can exceed the BPL_SIZE. For
4461 * now, use this as the limit
4463 if (cmdsize
> LPFC_BPL_SIZE
)
4464 cmdsize
= LPFC_BPL_SIZE
;
4465 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
, ndlp
,
4466 ndlp
->nlp_DID
, ELS_CMD_ACC
);
4470 elsiocb
->iocb
.ulpContext
= oldiocb
->iocb
.ulpContext
; /* Xri / rx_id */
4471 elsiocb
->iocb
.unsli3
.rcvsli3
.ox_id
= oldiocb
->iocb
.unsli3
.rcvsli3
.ox_id
;
4473 /* Xmit ECHO ACC response tag <ulpIoTag> */
4474 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4475 "2876 Xmit ECHO ACC response tag x%x xri x%x\n",
4476 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
);
4477 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
4478 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
4479 pcmd
+= sizeof(uint32_t);
4480 memcpy(pcmd
, data
, cmdsize
- sizeof(uint32_t));
4482 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
4483 "Issue ACC ECHO: did:x%x flg:x%x",
4484 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
4486 phba
->fc_stat
.elsXmitACC
++;
4487 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
4489 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
4490 if (rc
== IOCB_ERROR
) {
4491 lpfc_els_free_iocb(phba
, elsiocb
);
4498 * lpfc_els_disc_adisc - Issue remaining adisc iocbs to npr nodes of a vport
4499 * @vport: pointer to a host virtual N_Port data structure.
4501 * This routine issues Address Discover (ADISC) ELS commands to those
4502 * N_Ports which are in node port recovery state and ADISC has not been issued
4503 * for the @vport. Each time an ELS ADISC IOCB is issued by invoking the
4504 * lpfc_issue_els_adisc() routine, the per @vport number of discover count
4505 * (num_disc_nodes) shall be incremented. If the num_disc_nodes reaches a
4506 * pre-configured threshold (cfg_discovery_threads), the @vport fc_flag will
4507 * be marked with FC_NLP_MORE bit and the process of issuing remaining ADISC
4508 * IOCBs quit for later pick up. On the other hand, after walking through
4509 * all the ndlps with the @vport and there is none ADISC IOCB issued, the
4510 * @vport fc_flag shall be cleared with FC_NLP_MORE bit indicating there is
4511 * no more ADISC need to be sent.
4514 * The number of N_Ports with adisc issued.
4517 lpfc_els_disc_adisc(struct lpfc_vport
*vport
)
4519 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4520 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
4523 /* go thru NPR nodes and issue any remaining ELS ADISCs */
4524 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
, nlp_listp
) {
4525 if (!NLP_CHK_NODE_ACT(ndlp
))
4527 if (ndlp
->nlp_state
== NLP_STE_NPR_NODE
&&
4528 (ndlp
->nlp_flag
& NLP_NPR_2B_DISC
) != 0 &&
4529 (ndlp
->nlp_flag
& NLP_NPR_ADISC
) != 0) {
4530 spin_lock_irq(shost
->host_lock
);
4531 ndlp
->nlp_flag
&= ~NLP_NPR_ADISC
;
4532 spin_unlock_irq(shost
->host_lock
);
4533 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
4534 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_ADISC_ISSUE
);
4535 lpfc_issue_els_adisc(vport
, ndlp
, 0);
4537 vport
->num_disc_nodes
++;
4538 if (vport
->num_disc_nodes
>=
4539 vport
->cfg_discovery_threads
) {
4540 spin_lock_irq(shost
->host_lock
);
4541 vport
->fc_flag
|= FC_NLP_MORE
;
4542 spin_unlock_irq(shost
->host_lock
);
4547 if (sentadisc
== 0) {
4548 spin_lock_irq(shost
->host_lock
);
4549 vport
->fc_flag
&= ~FC_NLP_MORE
;
4550 spin_unlock_irq(shost
->host_lock
);
4556 * lpfc_els_disc_plogi - Issue plogi for all npr nodes of a vport before adisc
4557 * @vport: pointer to a host virtual N_Port data structure.
4559 * This routine issues Port Login (PLOGI) ELS commands to all the N_Ports
4560 * which are in node port recovery state, with a @vport. Each time an ELS
4561 * ADISC PLOGI IOCB is issued by invoking the lpfc_issue_els_plogi() routine,
4562 * the per @vport number of discover count (num_disc_nodes) shall be
4563 * incremented. If the num_disc_nodes reaches a pre-configured threshold
4564 * (cfg_discovery_threads), the @vport fc_flag will be marked with FC_NLP_MORE
4565 * bit set and quit the process of issuing remaining ADISC PLOGIN IOCBs for
4566 * later pick up. On the other hand, after walking through all the ndlps with
4567 * the @vport and there is none ADISC PLOGI IOCB issued, the @vport fc_flag
4568 * shall be cleared with the FC_NLP_MORE bit indicating there is no more ADISC
4569 * PLOGI need to be sent.
4572 * The number of N_Ports with plogi issued.
4575 lpfc_els_disc_plogi(struct lpfc_vport
*vport
)
4577 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4578 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
4581 /* go thru NPR nodes and issue any remaining ELS PLOGIs */
4582 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
, nlp_listp
) {
4583 if (!NLP_CHK_NODE_ACT(ndlp
))
4585 if (ndlp
->nlp_state
== NLP_STE_NPR_NODE
&&
4586 (ndlp
->nlp_flag
& NLP_NPR_2B_DISC
) != 0 &&
4587 (ndlp
->nlp_flag
& NLP_DELAY_TMO
) == 0 &&
4588 (ndlp
->nlp_flag
& NLP_NPR_ADISC
) == 0) {
4589 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
4590 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_PLOGI_ISSUE
);
4591 lpfc_issue_els_plogi(vport
, ndlp
->nlp_DID
, 0);
4593 vport
->num_disc_nodes
++;
4594 if (vport
->num_disc_nodes
>=
4595 vport
->cfg_discovery_threads
) {
4596 spin_lock_irq(shost
->host_lock
);
4597 vport
->fc_flag
|= FC_NLP_MORE
;
4598 spin_unlock_irq(shost
->host_lock
);
4604 lpfc_set_disctmo(vport
);
4607 spin_lock_irq(shost
->host_lock
);
4608 vport
->fc_flag
&= ~FC_NLP_MORE
;
4609 spin_unlock_irq(shost
->host_lock
);
4615 * lpfc_els_flush_rscn - Clean up any rscn activities with a vport
4616 * @vport: pointer to a host virtual N_Port data structure.
4618 * This routine cleans up any Registration State Change Notification
4619 * (RSCN) activity with a @vport. Note that the fc_rscn_flush flag of the
4620 * @vport together with the host_lock is used to prevent multiple thread
4621 * trying to access the RSCN array on a same @vport at the same time.
4624 lpfc_els_flush_rscn(struct lpfc_vport
*vport
)
4626 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4627 struct lpfc_hba
*phba
= vport
->phba
;
4630 spin_lock_irq(shost
->host_lock
);
4631 if (vport
->fc_rscn_flush
) {
4632 /* Another thread is walking fc_rscn_id_list on this vport */
4633 spin_unlock_irq(shost
->host_lock
);
4636 /* Indicate we are walking lpfc_els_flush_rscn on this vport */
4637 vport
->fc_rscn_flush
= 1;
4638 spin_unlock_irq(shost
->host_lock
);
4640 for (i
= 0; i
< vport
->fc_rscn_id_cnt
; i
++) {
4641 lpfc_in_buf_free(phba
, vport
->fc_rscn_id_list
[i
]);
4642 vport
->fc_rscn_id_list
[i
] = NULL
;
4644 spin_lock_irq(shost
->host_lock
);
4645 vport
->fc_rscn_id_cnt
= 0;
4646 vport
->fc_flag
&= ~(FC_RSCN_MODE
| FC_RSCN_DISCOVERY
);
4647 spin_unlock_irq(shost
->host_lock
);
4648 lpfc_can_disctmo(vport
);
4649 /* Indicate we are done walking this fc_rscn_id_list */
4650 vport
->fc_rscn_flush
= 0;
4654 * lpfc_rscn_payload_check - Check whether there is a pending rscn to a did
4655 * @vport: pointer to a host virtual N_Port data structure.
4656 * @did: remote destination port identifier.
4658 * This routine checks whether there is any pending Registration State
4659 * Configuration Notification (RSCN) to a @did on @vport.
4662 * None zero - The @did matched with a pending rscn
4663 * 0 - not able to match @did with a pending rscn
4666 lpfc_rscn_payload_check(struct lpfc_vport
*vport
, uint32_t did
)
4671 uint32_t payload_len
, i
;
4672 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4674 ns_did
.un
.word
= did
;
4676 /* Never match fabric nodes for RSCNs */
4677 if ((did
& Fabric_DID_MASK
) == Fabric_DID_MASK
)
4680 /* If we are doing a FULL RSCN rediscovery, match everything */
4681 if (vport
->fc_flag
& FC_RSCN_DISCOVERY
)
4684 spin_lock_irq(shost
->host_lock
);
4685 if (vport
->fc_rscn_flush
) {
4686 /* Another thread is walking fc_rscn_id_list on this vport */
4687 spin_unlock_irq(shost
->host_lock
);
4690 /* Indicate we are walking fc_rscn_id_list on this vport */
4691 vport
->fc_rscn_flush
= 1;
4692 spin_unlock_irq(shost
->host_lock
);
4693 for (i
= 0; i
< vport
->fc_rscn_id_cnt
; i
++) {
4694 lp
= vport
->fc_rscn_id_list
[i
]->virt
;
4695 payload_len
= be32_to_cpu(*lp
++ & ~ELS_CMD_MASK
);
4696 payload_len
-= sizeof(uint32_t); /* take off word 0 */
4697 while (payload_len
) {
4698 rscn_did
.un
.word
= be32_to_cpu(*lp
++);
4699 payload_len
-= sizeof(uint32_t);
4700 switch (rscn_did
.un
.b
.resv
& RSCN_ADDRESS_FORMAT_MASK
) {
4701 case RSCN_ADDRESS_FORMAT_PORT
:
4702 if ((ns_did
.un
.b
.domain
== rscn_did
.un
.b
.domain
)
4703 && (ns_did
.un
.b
.area
== rscn_did
.un
.b
.area
)
4704 && (ns_did
.un
.b
.id
== rscn_did
.un
.b
.id
))
4705 goto return_did_out
;
4707 case RSCN_ADDRESS_FORMAT_AREA
:
4708 if ((ns_did
.un
.b
.domain
== rscn_did
.un
.b
.domain
)
4709 && (ns_did
.un
.b
.area
== rscn_did
.un
.b
.area
))
4710 goto return_did_out
;
4712 case RSCN_ADDRESS_FORMAT_DOMAIN
:
4713 if (ns_did
.un
.b
.domain
== rscn_did
.un
.b
.domain
)
4714 goto return_did_out
;
4716 case RSCN_ADDRESS_FORMAT_FABRIC
:
4717 goto return_did_out
;
4721 /* Indicate we are done with walking fc_rscn_id_list on this vport */
4722 vport
->fc_rscn_flush
= 0;
4725 /* Indicate we are done with walking fc_rscn_id_list on this vport */
4726 vport
->fc_rscn_flush
= 0;
4731 * lpfc_rscn_recovery_check - Send recovery event to vport nodes matching rscn
4732 * @vport: pointer to a host virtual N_Port data structure.
4734 * This routine sends recovery (NLP_EVT_DEVICE_RECOVERY) event to the
4735 * state machine for a @vport's nodes that are with pending RSCN (Registration
4736 * State Change Notification).
4739 * 0 - Successful (currently alway return 0)
4742 lpfc_rscn_recovery_check(struct lpfc_vport
*vport
)
4744 struct lpfc_nodelist
*ndlp
= NULL
;
4746 /* Move all affected nodes by pending RSCNs to NPR state. */
4747 list_for_each_entry(ndlp
, &vport
->fc_nodes
, nlp_listp
) {
4748 if (!NLP_CHK_NODE_ACT(ndlp
) ||
4749 (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
) ||
4750 !lpfc_rscn_payload_check(vport
, ndlp
->nlp_DID
))
4752 lpfc_disc_state_machine(vport
, ndlp
, NULL
,
4753 NLP_EVT_DEVICE_RECOVERY
);
4754 lpfc_cancel_retry_delay_tmo(vport
, ndlp
);
4760 * lpfc_send_rscn_event - Send an RSCN event to management application
4761 * @vport: pointer to a host virtual N_Port data structure.
4762 * @cmdiocb: pointer to lpfc command iocb data structure.
4764 * lpfc_send_rscn_event sends an RSCN netlink event to management
4768 lpfc_send_rscn_event(struct lpfc_vport
*vport
,
4769 struct lpfc_iocbq
*cmdiocb
)
4771 struct lpfc_dmabuf
*pcmd
;
4772 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4773 uint32_t *payload_ptr
;
4774 uint32_t payload_len
;
4775 struct lpfc_rscn_event_header
*rscn_event_data
;
4777 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
4778 payload_ptr
= (uint32_t *) pcmd
->virt
;
4779 payload_len
= be32_to_cpu(*payload_ptr
& ~ELS_CMD_MASK
);
4781 rscn_event_data
= kmalloc(sizeof(struct lpfc_rscn_event_header
) +
4782 payload_len
, GFP_KERNEL
);
4783 if (!rscn_event_data
) {
4784 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
4785 "0147 Failed to allocate memory for RSCN event\n");
4788 rscn_event_data
->event_type
= FC_REG_RSCN_EVENT
;
4789 rscn_event_data
->payload_length
= payload_len
;
4790 memcpy(rscn_event_data
->rscn_payload
, payload_ptr
,
4793 fc_host_post_vendor_event(shost
,
4794 fc_get_event_number(),
4795 sizeof(struct lpfc_els_event_header
) + payload_len
,
4796 (char *)rscn_event_data
,
4799 kfree(rscn_event_data
);
4803 * lpfc_els_rcv_rscn - Process an unsolicited rscn iocb
4804 * @vport: pointer to a host virtual N_Port data structure.
4805 * @cmdiocb: pointer to lpfc command iocb data structure.
4806 * @ndlp: pointer to a node-list data structure.
4808 * This routine processes an unsolicited RSCN (Registration State Change
4809 * Notification) IOCB. First, the payload of the unsolicited RSCN is walked
4810 * to invoke fc_host_post_event() routine to the FC transport layer. If the
4811 * discover state machine is about to begin discovery, it just accepts the
4812 * RSCN and the discovery process will satisfy the RSCN. If this RSCN only
4813 * contains N_Port IDs for other vports on this HBA, it just accepts the
4814 * RSCN and ignore processing it. If the state machine is in the recovery
4815 * state, the fc_rscn_id_list of this @vport is walked and the
4816 * lpfc_rscn_recovery_check() routine is invoked to send recovery event for
4817 * all nodes that match RSCN payload. Otherwise, the lpfc_els_handle_rscn()
4818 * routine is invoked to handle the RSCN event.
4821 * 0 - Just sent the acc response
4822 * 1 - Sent the acc response and waited for name server completion
4825 lpfc_els_rcv_rscn(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
4826 struct lpfc_nodelist
*ndlp
)
4828 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4829 struct lpfc_hba
*phba
= vport
->phba
;
4830 struct lpfc_dmabuf
*pcmd
;
4831 uint32_t *lp
, *datap
;
4833 uint32_t payload_len
, length
, nportid
, *cmd
;
4835 int rscn_id
= 0, hba_id
= 0;
4838 icmd
= &cmdiocb
->iocb
;
4839 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
4840 lp
= (uint32_t *) pcmd
->virt
;
4842 payload_len
= be32_to_cpu(*lp
++ & ~ELS_CMD_MASK
);
4843 payload_len
-= sizeof(uint32_t); /* take off word 0 */
4845 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
4846 "0214 RSCN received Data: x%x x%x x%x x%x\n",
4847 vport
->fc_flag
, payload_len
, *lp
,
4848 vport
->fc_rscn_id_cnt
);
4850 /* Send an RSCN event to the management application */
4851 lpfc_send_rscn_event(vport
, cmdiocb
);
4853 for (i
= 0; i
< payload_len
/sizeof(uint32_t); i
++)
4854 fc_host_post_event(shost
, fc_get_event_number(),
4855 FCH_EVT_RSCN
, lp
[i
]);
4857 /* If we are about to begin discovery, just ACC the RSCN.
4858 * Discovery processing will satisfy it.
4860 if (vport
->port_state
<= LPFC_NS_QRY
) {
4861 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
4862 "RCV RSCN ignore: did:x%x/ste:x%x flg:x%x",
4863 ndlp
->nlp_DID
, vport
->port_state
, ndlp
->nlp_flag
);
4865 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
, ndlp
, NULL
);
4869 /* If this RSCN just contains NPortIDs for other vports on this HBA,
4870 * just ACC and ignore it.
4872 if ((phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
4873 !(vport
->cfg_peer_port_login
)) {
4878 nportid
= ((be32_to_cpu(nportid
)) & Mask_DID
);
4879 i
-= sizeof(uint32_t);
4881 if (lpfc_find_vport_by_did(phba
, nportid
))
4884 if (rscn_id
== hba_id
) {
4885 /* ALL NPortIDs in RSCN are on HBA */
4886 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
4888 "Data: x%x x%x x%x x%x\n",
4889 vport
->fc_flag
, payload_len
,
4890 *lp
, vport
->fc_rscn_id_cnt
);
4891 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
4892 "RCV RSCN vport: did:x%x/ste:x%x flg:x%x",
4893 ndlp
->nlp_DID
, vport
->port_state
,
4896 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
,
4902 spin_lock_irq(shost
->host_lock
);
4903 if (vport
->fc_rscn_flush
) {
4904 /* Another thread is walking fc_rscn_id_list on this vport */
4905 vport
->fc_flag
|= FC_RSCN_DISCOVERY
;
4906 spin_unlock_irq(shost
->host_lock
);
4908 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
, ndlp
, NULL
);
4911 /* Indicate we are walking fc_rscn_id_list on this vport */
4912 vport
->fc_rscn_flush
= 1;
4913 spin_unlock_irq(shost
->host_lock
);
4914 /* Get the array count after successfully have the token */
4915 rscn_cnt
= vport
->fc_rscn_id_cnt
;
4916 /* If we are already processing an RSCN, save the received
4917 * RSCN payload buffer, cmdiocb->context2 to process later.
4919 if (vport
->fc_flag
& (FC_RSCN_MODE
| FC_NDISC_ACTIVE
)) {
4920 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
4921 "RCV RSCN defer: did:x%x/ste:x%x flg:x%x",
4922 ndlp
->nlp_DID
, vport
->port_state
, ndlp
->nlp_flag
);
4924 spin_lock_irq(shost
->host_lock
);
4925 vport
->fc_flag
|= FC_RSCN_DEFERRED
;
4926 if ((rscn_cnt
< FC_MAX_HOLD_RSCN
) &&
4927 !(vport
->fc_flag
& FC_RSCN_DISCOVERY
)) {
4928 vport
->fc_flag
|= FC_RSCN_MODE
;
4929 spin_unlock_irq(shost
->host_lock
);
4931 cmd
= vport
->fc_rscn_id_list
[rscn_cnt
-1]->virt
;
4932 length
= be32_to_cpu(*cmd
& ~ELS_CMD_MASK
);
4935 (payload_len
+ length
<= LPFC_BPL_SIZE
)) {
4936 *cmd
&= ELS_CMD_MASK
;
4937 *cmd
|= cpu_to_be32(payload_len
+ length
);
4938 memcpy(((uint8_t *)cmd
) + length
, lp
,
4941 vport
->fc_rscn_id_list
[rscn_cnt
] = pcmd
;
4942 vport
->fc_rscn_id_cnt
++;
4943 /* If we zero, cmdiocb->context2, the calling
4944 * routine will not try to free it.
4946 cmdiocb
->context2
= NULL
;
4949 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
4950 "0235 Deferred RSCN "
4951 "Data: x%x x%x x%x\n",
4952 vport
->fc_rscn_id_cnt
, vport
->fc_flag
,
4955 vport
->fc_flag
|= FC_RSCN_DISCOVERY
;
4956 spin_unlock_irq(shost
->host_lock
);
4957 /* ReDiscovery RSCN */
4958 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
4959 "0234 ReDiscovery RSCN "
4960 "Data: x%x x%x x%x\n",
4961 vport
->fc_rscn_id_cnt
, vport
->fc_flag
,
4964 /* Indicate we are done walking fc_rscn_id_list on this vport */
4965 vport
->fc_rscn_flush
= 0;
4967 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
, ndlp
, NULL
);
4968 /* send RECOVERY event for ALL nodes that match RSCN payload */
4969 lpfc_rscn_recovery_check(vport
);
4970 spin_lock_irq(shost
->host_lock
);
4971 vport
->fc_flag
&= ~FC_RSCN_DEFERRED
;
4972 spin_unlock_irq(shost
->host_lock
);
4975 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
4976 "RCV RSCN: did:x%x/ste:x%x flg:x%x",
4977 ndlp
->nlp_DID
, vport
->port_state
, ndlp
->nlp_flag
);
4979 spin_lock_irq(shost
->host_lock
);
4980 vport
->fc_flag
|= FC_RSCN_MODE
;
4981 spin_unlock_irq(shost
->host_lock
);
4982 vport
->fc_rscn_id_list
[vport
->fc_rscn_id_cnt
++] = pcmd
;
4983 /* Indicate we are done walking fc_rscn_id_list on this vport */
4984 vport
->fc_rscn_flush
= 0;
4986 * If we zero, cmdiocb->context2, the calling routine will
4987 * not try to free it.
4989 cmdiocb
->context2
= NULL
;
4990 lpfc_set_disctmo(vport
);
4992 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
, ndlp
, NULL
);
4993 /* send RECOVERY event for ALL nodes that match RSCN payload */
4994 lpfc_rscn_recovery_check(vport
);
4995 return lpfc_els_handle_rscn(vport
);
4999 * lpfc_els_handle_rscn - Handle rscn for a vport
5000 * @vport: pointer to a host virtual N_Port data structure.
5002 * This routine handles the Registration State Configuration Notification
5003 * (RSCN) for a @vport. If login to NameServer does not exist, a new ndlp shall
5004 * be created and a Port Login (PLOGI) to the NameServer is issued. Otherwise,
5005 * if the ndlp to NameServer exists, a Common Transport (CT) command to the
5006 * NameServer shall be issued. If CT command to the NameServer fails to be
5007 * issued, the lpfc_els_flush_rscn() routine shall be invoked to clean up any
5008 * RSCN activities with the @vport.
5011 * 0 - Cleaned up rscn on the @vport
5012 * 1 - Wait for plogi to name server before proceed
5015 lpfc_els_handle_rscn(struct lpfc_vport
*vport
)
5017 struct lpfc_nodelist
*ndlp
;
5018 struct lpfc_hba
*phba
= vport
->phba
;
5020 /* Ignore RSCN if the port is being torn down. */
5021 if (vport
->load_flag
& FC_UNLOADING
) {
5022 lpfc_els_flush_rscn(vport
);
5026 /* Start timer for RSCN processing */
5027 lpfc_set_disctmo(vport
);
5029 /* RSCN processed */
5030 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
5031 "0215 RSCN processed Data: x%x x%x x%x x%x\n",
5032 vport
->fc_flag
, 0, vport
->fc_rscn_id_cnt
,
5035 /* To process RSCN, first compare RSCN data with NameServer */
5036 vport
->fc_ns_retry
= 0;
5037 vport
->num_disc_nodes
= 0;
5039 ndlp
= lpfc_findnode_did(vport
, NameServer_DID
);
5040 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
)
5041 && ndlp
->nlp_state
== NLP_STE_UNMAPPED_NODE
) {
5042 /* Good ndlp, issue CT Request to NameServer */
5043 if (lpfc_ns_cmd(vport
, SLI_CTNS_GID_FT
, 0, 0) == 0)
5044 /* Wait for NameServer query cmpl before we can
5048 /* If login to NameServer does not exist, issue one */
5049 /* Good status, issue PLOGI to NameServer */
5050 ndlp
= lpfc_findnode_did(vport
, NameServer_DID
);
5051 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
))
5052 /* Wait for NameServer login cmpl before we can
5057 ndlp
= lpfc_enable_node(vport
, ndlp
,
5058 NLP_STE_PLOGI_ISSUE
);
5060 lpfc_els_flush_rscn(vport
);
5063 ndlp
->nlp_prev_state
= NLP_STE_UNUSED_NODE
;
5065 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
5067 lpfc_els_flush_rscn(vport
);
5070 lpfc_nlp_init(vport
, ndlp
, NameServer_DID
);
5071 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
5072 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_PLOGI_ISSUE
);
5074 ndlp
->nlp_type
|= NLP_FABRIC
;
5075 lpfc_issue_els_plogi(vport
, NameServer_DID
, 0);
5076 /* Wait for NameServer login cmpl before we can
5082 lpfc_els_flush_rscn(vport
);
5087 * lpfc_els_rcv_flogi - Process an unsolicited flogi iocb
5088 * @vport: pointer to a host virtual N_Port data structure.
5089 * @cmdiocb: pointer to lpfc command iocb data structure.
5090 * @ndlp: pointer to a node-list data structure.
5092 * This routine processes Fabric Login (FLOGI) IOCB received as an ELS
5093 * unsolicited event. An unsolicited FLOGI can be received in a point-to-
5094 * point topology. As an unsolicited FLOGI should not be received in a loop
5095 * mode, any unsolicited FLOGI received in loop mode shall be ignored. The
5096 * lpfc_check_sparm() routine is invoked to check the parameters in the
5097 * unsolicited FLOGI. If parameters validation failed, the routine
5098 * lpfc_els_rsp_reject() shall be called with reject reason code set to
5099 * LSEXP_SPARM_OPTIONS to reject the FLOGI. Otherwise, the Port WWN in the
5100 * FLOGI shall be compared with the Port WWN of the @vport to determine who
5101 * will initiate PLOGI. The higher lexicographical value party shall has
5102 * higher priority (as the winning port) and will initiate PLOGI and
5103 * communicate Port_IDs (Addresses) for both nodes in PLOGI. The result
5104 * of this will be marked in the @vport fc_flag field with FC_PT2PT_PLOGI
5105 * and then the lpfc_els_rsp_acc() routine is invoked to accept the FLOGI.
5108 * 0 - Successfully processed the unsolicited flogi
5109 * 1 - Failed to process the unsolicited flogi
5112 lpfc_els_rcv_flogi(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5113 struct lpfc_nodelist
*ndlp
)
5115 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
5116 struct lpfc_hba
*phba
= vport
->phba
;
5117 struct lpfc_dmabuf
*pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
5118 uint32_t *lp
= (uint32_t *) pcmd
->virt
;
5119 IOCB_t
*icmd
= &cmdiocb
->iocb
;
5120 struct serv_parm
*sp
;
5125 uint32_t fc_flag
= 0;
5126 uint32_t port_state
= 0;
5129 sp
= (struct serv_parm
*) lp
;
5131 /* FLOGI received */
5133 lpfc_set_disctmo(vport
);
5135 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
5136 /* We should never receive a FLOGI in loop mode, ignore it */
5137 did
= icmd
->un
.elsreq64
.remoteID
;
5139 /* An FLOGI ELS command <elsCmd> was received from DID <did> in
5141 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
5142 "0113 An FLOGI ELS command x%x was "
5143 "received from DID x%x in Loop Mode\n",
5148 if ((lpfc_check_sparm(vport
, ndlp
, sp
, CLASS3
, 1))) {
5149 /* For a FLOGI we accept, then if our portname is greater
5150 * then the remote portname we initiate Nport login.
5153 rc
= memcmp(&vport
->fc_portname
, &sp
->portName
,
5154 sizeof(struct lpfc_name
));
5157 if (phba
->sli_rev
< LPFC_SLI_REV4
) {
5158 mbox
= mempool_alloc(phba
->mbox_mem_pool
,
5162 lpfc_linkdown(phba
);
5163 lpfc_init_link(phba
, mbox
,
5165 phba
->cfg_link_speed
);
5166 mbox
->u
.mb
.un
.varInitLnk
.lipsr_AL_PA
= 0;
5167 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
5168 mbox
->vport
= vport
;
5169 rc
= lpfc_sli_issue_mbox(phba
, mbox
,
5171 lpfc_set_loopback_flag(phba
);
5172 if (rc
== MBX_NOT_FINISHED
)
5173 mempool_free(mbox
, phba
->mbox_mem_pool
);
5176 /* abort the flogi coming back to ourselves
5177 * due to external loopback on the port.
5179 lpfc_els_abort_flogi(phba
);
5182 } else if (rc
> 0) { /* greater than */
5183 spin_lock_irq(shost
->host_lock
);
5184 vport
->fc_flag
|= FC_PT2PT_PLOGI
;
5185 spin_unlock_irq(shost
->host_lock
);
5187 /* If we have the high WWPN we can assign our own
5188 * myDID; otherwise, we have to WAIT for a PLOGI
5189 * from the remote NPort to find out what it
5192 vport
->fc_myDID
= PT2PT_LocalID
;
5194 vport
->fc_myDID
= PT2PT_RemoteID
;
5197 * The vport state should go to LPFC_FLOGI only
5198 * AFTER we issue a FLOGI, not receive one.
5200 spin_lock_irq(shost
->host_lock
);
5201 fc_flag
= vport
->fc_flag
;
5202 port_state
= vport
->port_state
;
5203 vport
->fc_flag
|= FC_PT2PT
;
5204 vport
->fc_flag
&= ~(FC_FABRIC
| FC_PUBLIC_LOOP
);
5205 spin_unlock_irq(shost
->host_lock
);
5206 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
5207 "3311 Rcv Flogi PS x%x new PS x%x "
5208 "fc_flag x%x new fc_flag x%x\n",
5209 port_state
, vport
->port_state
,
5210 fc_flag
, vport
->fc_flag
);
5213 * We temporarily set fc_myDID to make it look like we are
5214 * a Fabric. This is done just so we end up with the right
5215 * did / sid on the FLOGI ACC rsp.
5217 did
= vport
->fc_myDID
;
5218 vport
->fc_myDID
= Fabric_DID
;
5221 /* Reject this request because invalid parameters */
5222 stat
.un
.b
.lsRjtRsvd0
= 0;
5223 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
5224 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_SPARM_OPTIONS
;
5225 stat
.un
.b
.vendorUnique
= 0;
5228 * We temporarily set fc_myDID to make it look like we are
5229 * a Fabric. This is done just so we end up with the right
5230 * did / sid on the FLOGI LS_RJT rsp.
5232 did
= vport
->fc_myDID
;
5233 vport
->fc_myDID
= Fabric_DID
;
5235 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
,
5238 /* Now lets put fc_myDID back to what its supposed to be */
5239 vport
->fc_myDID
= did
;
5245 lpfc_els_rsp_acc(vport
, ELS_CMD_PLOGI
, cmdiocb
, ndlp
, NULL
);
5247 /* Now lets put fc_myDID back to what its supposed to be */
5248 vport
->fc_myDID
= did
;
5250 if (!(vport
->fc_flag
& FC_PT2PT_PLOGI
)) {
5252 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
5256 lpfc_config_link(phba
, mbox
);
5258 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
5259 mbox
->vport
= vport
;
5260 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
5261 if (rc
== MBX_NOT_FINISHED
) {
5262 mempool_free(mbox
, phba
->mbox_mem_pool
);
5273 * lpfc_els_rcv_rnid - Process an unsolicited rnid iocb
5274 * @vport: pointer to a host virtual N_Port data structure.
5275 * @cmdiocb: pointer to lpfc command iocb data structure.
5276 * @ndlp: pointer to a node-list data structure.
5278 * This routine processes Request Node Identification Data (RNID) IOCB
5279 * received as an ELS unsolicited event. Only when the RNID specified format
5280 * 0x0 or 0xDF (Topology Discovery Specific Node Identification Data)
5281 * present, this routine will invoke the lpfc_els_rsp_rnid_acc() routine to
5282 * Accept (ACC) the RNID ELS command. All the other RNID formats are
5283 * rejected by invoking the lpfc_els_rsp_reject() routine.
5286 * 0 - Successfully processed rnid iocb (currently always return 0)
5289 lpfc_els_rcv_rnid(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5290 struct lpfc_nodelist
*ndlp
)
5292 struct lpfc_dmabuf
*pcmd
;
5299 icmd
= &cmdiocb
->iocb
;
5300 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
5301 lp
= (uint32_t *) pcmd
->virt
;
5308 switch (rn
->Format
) {
5310 case RNID_TOPOLOGY_DISC
:
5312 lpfc_els_rsp_rnid_acc(vport
, rn
->Format
, cmdiocb
, ndlp
);
5315 /* Reject this request because format not supported */
5316 stat
.un
.b
.lsRjtRsvd0
= 0;
5317 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
5318 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_CANT_GIVE_DATA
;
5319 stat
.un
.b
.vendorUnique
= 0;
5320 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
,
5327 * lpfc_els_rcv_echo - Process an unsolicited echo iocb
5328 * @vport: pointer to a host virtual N_Port data structure.
5329 * @cmdiocb: pointer to lpfc command iocb data structure.
5330 * @ndlp: pointer to a node-list data structure.
5333 * 0 - Successfully processed echo iocb (currently always return 0)
5336 lpfc_els_rcv_echo(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5337 struct lpfc_nodelist
*ndlp
)
5341 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) cmdiocb
->context2
)->virt
);
5343 /* skip over first word of echo command to find echo data */
5344 pcmd
+= sizeof(uint32_t);
5346 lpfc_els_rsp_echo_acc(vport
, pcmd
, cmdiocb
, ndlp
);
5351 * lpfc_els_rcv_lirr - Process an unsolicited lirr iocb
5352 * @vport: pointer to a host virtual N_Port data structure.
5353 * @cmdiocb: pointer to lpfc command iocb data structure.
5354 * @ndlp: pointer to a node-list data structure.
5356 * This routine processes a Link Incident Report Registration(LIRR) IOCB
5357 * received as an ELS unsolicited event. Currently, this function just invokes
5358 * the lpfc_els_rsp_reject() routine to reject the LIRR IOCB unconditionally.
5361 * 0 - Successfully processed lirr iocb (currently always return 0)
5364 lpfc_els_rcv_lirr(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5365 struct lpfc_nodelist
*ndlp
)
5369 /* For now, unconditionally reject this command */
5370 stat
.un
.b
.lsRjtRsvd0
= 0;
5371 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
5372 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_CANT_GIVE_DATA
;
5373 stat
.un
.b
.vendorUnique
= 0;
5374 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
, NULL
);
5379 * lpfc_els_rcv_rrq - Process an unsolicited rrq iocb
5380 * @vport: pointer to a host virtual N_Port data structure.
5381 * @cmdiocb: pointer to lpfc command iocb data structure.
5382 * @ndlp: pointer to a node-list data structure.
5384 * This routine processes a Reinstate Recovery Qualifier (RRQ) IOCB
5385 * received as an ELS unsolicited event. A request to RRQ shall only
5386 * be accepted if the Originator Nx_Port N_Port_ID or the Responder
5387 * Nx_Port N_Port_ID of the target Exchange is the same as the
5388 * N_Port_ID of the Nx_Port that makes the request. If the RRQ is
5389 * not accepted, an LS_RJT with reason code "Unable to perform
5390 * command request" and reason code explanation "Invalid Originator
5391 * S_ID" shall be returned. For now, we just unconditionally accept
5392 * RRQ from the target.
5395 lpfc_els_rcv_rrq(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5396 struct lpfc_nodelist
*ndlp
)
5398 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
, ndlp
, NULL
);
5399 if (vport
->phba
->sli_rev
== LPFC_SLI_REV4
)
5400 lpfc_els_clear_rrq(vport
, cmdiocb
, ndlp
);
5404 * lpfc_els_rsp_rls_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd
5405 * @phba: pointer to lpfc hba data structure.
5406 * @pmb: pointer to the driver internal queue element for mailbox command.
5408 * This routine is the completion callback function for the MBX_READ_LNK_STAT
5409 * mailbox command. This callback function is to actually send the Accept
5410 * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It
5411 * collects the link statistics from the completion of the MBX_READ_LNK_STAT
5412 * mailbox command, constructs the RPS response with the link statistics
5413 * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC
5414 * response to the RPS.
5416 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
5417 * will be incremented by 1 for holding the ndlp and the reference to ndlp
5418 * will be stored into the context1 field of the IOCB for the completion
5419 * callback function to the RPS Accept Response ELS IOCB command.
5423 lpfc_els_rsp_rls_acc(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
5427 struct RLS_RSP
*rls_rsp
;
5429 struct lpfc_iocbq
*elsiocb
;
5430 struct lpfc_nodelist
*ndlp
;
5437 ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
5438 rxid
= (uint16_t) ((unsigned long)(pmb
->context1
) & 0xffff);
5439 oxid
= (uint16_t) (((unsigned long)(pmb
->context1
) >> 16) & 0xffff);
5440 pmb
->context1
= NULL
;
5441 pmb
->context2
= NULL
;
5443 if (mb
->mbxStatus
) {
5444 mempool_free(pmb
, phba
->mbox_mem_pool
);
5448 cmdsize
= sizeof(struct RLS_RSP
) + sizeof(uint32_t);
5449 elsiocb
= lpfc_prep_els_iocb(phba
->pport
, 0, cmdsize
,
5450 lpfc_max_els_tries
, ndlp
,
5451 ndlp
->nlp_DID
, ELS_CMD_ACC
);
5453 /* Decrement the ndlp reference count from previous mbox command */
5457 mempool_free(pmb
, phba
->mbox_mem_pool
);
5461 icmd
= &elsiocb
->iocb
;
5462 icmd
->ulpContext
= rxid
;
5463 icmd
->unsli3
.rcvsli3
.ox_id
= oxid
;
5465 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
5466 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
5467 pcmd
+= sizeof(uint32_t); /* Skip past command */
5468 rls_rsp
= (struct RLS_RSP
*)pcmd
;
5470 rls_rsp
->linkFailureCnt
= cpu_to_be32(mb
->un
.varRdLnk
.linkFailureCnt
);
5471 rls_rsp
->lossSyncCnt
= cpu_to_be32(mb
->un
.varRdLnk
.lossSyncCnt
);
5472 rls_rsp
->lossSignalCnt
= cpu_to_be32(mb
->un
.varRdLnk
.lossSignalCnt
);
5473 rls_rsp
->primSeqErrCnt
= cpu_to_be32(mb
->un
.varRdLnk
.primSeqErrCnt
);
5474 rls_rsp
->invalidXmitWord
= cpu_to_be32(mb
->un
.varRdLnk
.invalidXmitWord
);
5475 rls_rsp
->crcCnt
= cpu_to_be32(mb
->un
.varRdLnk
.crcCnt
);
5476 mempool_free(pmb
, phba
->mbox_mem_pool
);
5477 /* Xmit ELS RLS ACC response tag <ulpIoTag> */
5478 lpfc_printf_vlog(ndlp
->vport
, KERN_INFO
, LOG_ELS
,
5479 "2874 Xmit ELS RLS ACC response tag x%x xri x%x, "
5480 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
5481 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
5482 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
5484 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
5485 phba
->fc_stat
.elsXmitACC
++;
5486 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) == IOCB_ERROR
)
5487 lpfc_els_free_iocb(phba
, elsiocb
);
5491 * lpfc_els_rsp_rps_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd
5492 * @phba: pointer to lpfc hba data structure.
5493 * @pmb: pointer to the driver internal queue element for mailbox command.
5495 * This routine is the completion callback function for the MBX_READ_LNK_STAT
5496 * mailbox command. This callback function is to actually send the Accept
5497 * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It
5498 * collects the link statistics from the completion of the MBX_READ_LNK_STAT
5499 * mailbox command, constructs the RPS response with the link statistics
5500 * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC
5501 * response to the RPS.
5503 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
5504 * will be incremented by 1 for holding the ndlp and the reference to ndlp
5505 * will be stored into the context1 field of the IOCB for the completion
5506 * callback function to the RPS Accept Response ELS IOCB command.
5510 lpfc_els_rsp_rps_acc(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
5516 struct lpfc_iocbq
*elsiocb
;
5517 struct lpfc_nodelist
*ndlp
;
5525 ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
5526 rxid
= (uint16_t) ((unsigned long)(pmb
->context1
) & 0xffff);
5527 oxid
= (uint16_t) (((unsigned long)(pmb
->context1
) >> 16) & 0xffff);
5528 pmb
->context1
= NULL
;
5529 pmb
->context2
= NULL
;
5531 if (mb
->mbxStatus
) {
5532 mempool_free(pmb
, phba
->mbox_mem_pool
);
5536 cmdsize
= sizeof(RPS_RSP
) + sizeof(uint32_t);
5537 mempool_free(pmb
, phba
->mbox_mem_pool
);
5538 elsiocb
= lpfc_prep_els_iocb(phba
->pport
, 0, cmdsize
,
5539 lpfc_max_els_tries
, ndlp
,
5540 ndlp
->nlp_DID
, ELS_CMD_ACC
);
5542 /* Decrement the ndlp reference count from previous mbox command */
5548 icmd
= &elsiocb
->iocb
;
5549 icmd
->ulpContext
= rxid
;
5550 icmd
->unsli3
.rcvsli3
.ox_id
= oxid
;
5552 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
5553 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
5554 pcmd
+= sizeof(uint32_t); /* Skip past command */
5555 rps_rsp
= (RPS_RSP
*)pcmd
;
5557 if (phba
->fc_topology
!= LPFC_TOPOLOGY_LOOP
)
5561 if (phba
->pport
->fc_flag
& FC_FABRIC
)
5565 rps_rsp
->portStatus
= cpu_to_be16(status
);
5566 rps_rsp
->linkFailureCnt
= cpu_to_be32(mb
->un
.varRdLnk
.linkFailureCnt
);
5567 rps_rsp
->lossSyncCnt
= cpu_to_be32(mb
->un
.varRdLnk
.lossSyncCnt
);
5568 rps_rsp
->lossSignalCnt
= cpu_to_be32(mb
->un
.varRdLnk
.lossSignalCnt
);
5569 rps_rsp
->primSeqErrCnt
= cpu_to_be32(mb
->un
.varRdLnk
.primSeqErrCnt
);
5570 rps_rsp
->invalidXmitWord
= cpu_to_be32(mb
->un
.varRdLnk
.invalidXmitWord
);
5571 rps_rsp
->crcCnt
= cpu_to_be32(mb
->un
.varRdLnk
.crcCnt
);
5572 /* Xmit ELS RPS ACC response tag <ulpIoTag> */
5573 lpfc_printf_vlog(ndlp
->vport
, KERN_INFO
, LOG_ELS
,
5574 "0118 Xmit ELS RPS ACC response tag x%x xri x%x, "
5575 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
5576 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
5577 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
5579 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
5580 phba
->fc_stat
.elsXmitACC
++;
5581 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) == IOCB_ERROR
)
5582 lpfc_els_free_iocb(phba
, elsiocb
);
5587 * lpfc_els_rcv_rls - Process an unsolicited rls iocb
5588 * @vport: pointer to a host virtual N_Port data structure.
5589 * @cmdiocb: pointer to lpfc command iocb data structure.
5590 * @ndlp: pointer to a node-list data structure.
5592 * This routine processes Read Port Status (RPL) IOCB received as an
5593 * ELS unsolicited event. It first checks the remote port state. If the
5594 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
5595 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject
5596 * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command
5597 * for reading the HBA link statistics. It is for the callback function,
5598 * lpfc_els_rsp_rls_acc(), set to the MBX_READ_LNK_STAT mailbox command
5599 * to actually sending out RPL Accept (ACC) response.
5602 * 0 - Successfully processed rls iocb (currently always return 0)
5605 lpfc_els_rcv_rls(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5606 struct lpfc_nodelist
*ndlp
)
5608 struct lpfc_hba
*phba
= vport
->phba
;
5610 struct lpfc_dmabuf
*pcmd
;
5613 if ((ndlp
->nlp_state
!= NLP_STE_UNMAPPED_NODE
) &&
5614 (ndlp
->nlp_state
!= NLP_STE_MAPPED_NODE
))
5615 /* reject the unsolicited RPS request and done with it */
5618 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
5620 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_ATOMIC
);
5622 lpfc_read_lnk_stat(phba
, mbox
);
5623 mbox
->context1
= (void *)((unsigned long)
5624 ((cmdiocb
->iocb
.unsli3
.rcvsli3
.ox_id
<< 16) |
5625 cmdiocb
->iocb
.ulpContext
)); /* rx_id */
5626 mbox
->context2
= lpfc_nlp_get(ndlp
);
5627 mbox
->vport
= vport
;
5628 mbox
->mbox_cmpl
= lpfc_els_rsp_rls_acc
;
5629 if (lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
)
5630 != MBX_NOT_FINISHED
)
5631 /* Mbox completion will send ELS Response */
5633 /* Decrement reference count used for the failed mbox
5637 mempool_free(mbox
, phba
->mbox_mem_pool
);
5640 /* issue rejection response */
5641 stat
.un
.b
.lsRjtRsvd0
= 0;
5642 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
5643 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_CANT_GIVE_DATA
;
5644 stat
.un
.b
.vendorUnique
= 0;
5645 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
, NULL
);
5650 * lpfc_els_rcv_rtv - Process an unsolicited rtv iocb
5651 * @vport: pointer to a host virtual N_Port data structure.
5652 * @cmdiocb: pointer to lpfc command iocb data structure.
5653 * @ndlp: pointer to a node-list data structure.
5655 * This routine processes Read Timout Value (RTV) IOCB received as an
5656 * ELS unsolicited event. It first checks the remote port state. If the
5657 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
5658 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject
5659 * response. Otherwise, it sends the Accept(ACC) response to a Read Timeout
5660 * Value (RTV) unsolicited IOCB event.
5662 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
5663 * will be incremented by 1 for holding the ndlp and the reference to ndlp
5664 * will be stored into the context1 field of the IOCB for the completion
5665 * callback function to the RPS Accept Response ELS IOCB command.
5668 * 0 - Successfully processed rtv iocb (currently always return 0)
5671 lpfc_els_rcv_rtv(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5672 struct lpfc_nodelist
*ndlp
)
5674 struct lpfc_hba
*phba
= vport
->phba
;
5676 struct RTV_RSP
*rtv_rsp
;
5678 struct lpfc_iocbq
*elsiocb
;
5682 if ((ndlp
->nlp_state
!= NLP_STE_UNMAPPED_NODE
) &&
5683 (ndlp
->nlp_state
!= NLP_STE_MAPPED_NODE
))
5684 /* reject the unsolicited RPS request and done with it */
5687 cmdsize
= sizeof(struct RTV_RSP
) + sizeof(uint32_t);
5688 elsiocb
= lpfc_prep_els_iocb(phba
->pport
, 0, cmdsize
,
5689 lpfc_max_els_tries
, ndlp
,
5690 ndlp
->nlp_DID
, ELS_CMD_ACC
);
5695 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
5696 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
5697 pcmd
+= sizeof(uint32_t); /* Skip past command */
5699 /* use the command's xri in the response */
5700 elsiocb
->iocb
.ulpContext
= cmdiocb
->iocb
.ulpContext
; /* Xri / rx_id */
5701 elsiocb
->iocb
.unsli3
.rcvsli3
.ox_id
= cmdiocb
->iocb
.unsli3
.rcvsli3
.ox_id
;
5703 rtv_rsp
= (struct RTV_RSP
*)pcmd
;
5705 /* populate RTV payload */
5706 rtv_rsp
->ratov
= cpu_to_be32(phba
->fc_ratov
* 1000); /* report msecs */
5707 rtv_rsp
->edtov
= cpu_to_be32(phba
->fc_edtov
);
5708 bf_set(qtov_edtovres
, rtv_rsp
, phba
->fc_edtovResol
? 1 : 0);
5709 bf_set(qtov_rttov
, rtv_rsp
, 0); /* Field is for FC ONLY */
5710 rtv_rsp
->qtov
= cpu_to_be32(rtv_rsp
->qtov
);
5712 /* Xmit ELS RLS ACC response tag <ulpIoTag> */
5713 lpfc_printf_vlog(ndlp
->vport
, KERN_INFO
, LOG_ELS
,
5714 "2875 Xmit ELS RTV ACC response tag x%x xri x%x, "
5715 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x, "
5716 "Data: x%x x%x x%x\n",
5717 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
5718 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
5720 rtv_rsp
->ratov
, rtv_rsp
->edtov
, rtv_rsp
->qtov
);
5721 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
5722 phba
->fc_stat
.elsXmitACC
++;
5723 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) == IOCB_ERROR
)
5724 lpfc_els_free_iocb(phba
, elsiocb
);
5728 /* issue rejection response */
5729 stat
.un
.b
.lsRjtRsvd0
= 0;
5730 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
5731 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_CANT_GIVE_DATA
;
5732 stat
.un
.b
.vendorUnique
= 0;
5733 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
, NULL
);
5737 /* lpfc_els_rcv_rps - Process an unsolicited rps iocb
5738 * @vport: pointer to a host virtual N_Port data structure.
5739 * @cmdiocb: pointer to lpfc command iocb data structure.
5740 * @ndlp: pointer to a node-list data structure.
5742 * This routine processes Read Port Status (RPS) IOCB received as an
5743 * ELS unsolicited event. It first checks the remote port state. If the
5744 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
5745 * state, it invokes the lpfc_els_rsp_reject() routine to send the reject
5746 * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command
5747 * for reading the HBA link statistics. It is for the callback function,
5748 * lpfc_els_rsp_rps_acc(), set to the MBX_READ_LNK_STAT mailbox command
5749 * to actually sending out RPS Accept (ACC) response.
5752 * 0 - Successfully processed rps iocb (currently always return 0)
5755 lpfc_els_rcv_rps(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5756 struct lpfc_nodelist
*ndlp
)
5758 struct lpfc_hba
*phba
= vport
->phba
;
5762 struct lpfc_dmabuf
*pcmd
;
5766 if ((ndlp
->nlp_state
!= NLP_STE_UNMAPPED_NODE
) &&
5767 (ndlp
->nlp_state
!= NLP_STE_MAPPED_NODE
))
5768 /* reject the unsolicited RPS request and done with it */
5771 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
5772 lp
= (uint32_t *) pcmd
->virt
;
5773 flag
= (be32_to_cpu(*lp
++) & 0xf);
5777 ((flag
== 1) && (be32_to_cpu(rps
->un
.portNum
) == 0)) ||
5778 ((flag
== 2) && (memcmp(&rps
->un
.portName
, &vport
->fc_portname
,
5779 sizeof(struct lpfc_name
)) == 0))) {
5781 printk("Fix me....\n");
5783 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_ATOMIC
);
5785 lpfc_read_lnk_stat(phba
, mbox
);
5786 mbox
->context1
= (void *)((unsigned long)
5787 ((cmdiocb
->iocb
.unsli3
.rcvsli3
.ox_id
<< 16) |
5788 cmdiocb
->iocb
.ulpContext
)); /* rx_id */
5789 mbox
->context2
= lpfc_nlp_get(ndlp
);
5790 mbox
->vport
= vport
;
5791 mbox
->mbox_cmpl
= lpfc_els_rsp_rps_acc
;
5792 if (lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
)
5793 != MBX_NOT_FINISHED
)
5794 /* Mbox completion will send ELS Response */
5796 /* Decrement reference count used for the failed mbox
5800 mempool_free(mbox
, phba
->mbox_mem_pool
);
5805 /* issue rejection response */
5806 stat
.un
.b
.lsRjtRsvd0
= 0;
5807 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
5808 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_CANT_GIVE_DATA
;
5809 stat
.un
.b
.vendorUnique
= 0;
5810 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
, NULL
);
5814 /* lpfc_issue_els_rrq - Process an unsolicited rps iocb
5815 * @vport: pointer to a host virtual N_Port data structure.
5816 * @ndlp: pointer to a node-list data structure.
5817 * @did: DID of the target.
5818 * @rrq: Pointer to the rrq struct.
5820 * Build a ELS RRQ command and send it to the target. If the issue_iocb is
5821 * Successful the the completion handler will clear the RRQ.
5824 * 0 - Successfully sent rrq els iocb.
5825 * 1 - Failed to send rrq els iocb.
5828 lpfc_issue_els_rrq(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
5829 uint32_t did
, struct lpfc_node_rrq
*rrq
)
5831 struct lpfc_hba
*phba
= vport
->phba
;
5832 struct RRQ
*els_rrq
;
5834 struct lpfc_iocbq
*elsiocb
;
5840 if (ndlp
!= rrq
->ndlp
)
5842 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
))
5845 /* If ndlp is not NULL, we will bump the reference count on it */
5846 cmdsize
= (sizeof(uint32_t) + sizeof(struct RRQ
));
5847 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, 0, ndlp
, did
,
5852 icmd
= &elsiocb
->iocb
;
5853 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
5855 /* For RRQ request, remainder of payload is Exchange IDs */
5856 *((uint32_t *) (pcmd
)) = ELS_CMD_RRQ
;
5857 pcmd
+= sizeof(uint32_t);
5858 els_rrq
= (struct RRQ
*) pcmd
;
5860 bf_set(rrq_oxid
, els_rrq
, phba
->sli4_hba
.xri_ids
[rrq
->xritag
]);
5861 bf_set(rrq_rxid
, els_rrq
, rrq
->rxid
);
5862 bf_set(rrq_did
, els_rrq
, vport
->fc_myDID
);
5863 els_rrq
->rrq
= cpu_to_be32(els_rrq
->rrq
);
5864 els_rrq
->rrq_exchg
= cpu_to_be32(els_rrq
->rrq_exchg
);
5867 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
5868 "Issue RRQ: did:x%x",
5869 did
, rrq
->xritag
, rrq
->rxid
);
5870 elsiocb
->context_un
.rrq
= rrq
;
5871 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rrq
;
5872 ret
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
5874 if (ret
== IOCB_ERROR
) {
5875 lpfc_els_free_iocb(phba
, elsiocb
);
5882 * lpfc_send_rrq - Sends ELS RRQ if needed.
5883 * @phba: pointer to lpfc hba data structure.
5884 * @rrq: pointer to the active rrq.
5886 * This routine will call the lpfc_issue_els_rrq if the rrq is
5887 * still active for the xri. If this function returns a failure then
5888 * the caller needs to clean up the RRQ by calling lpfc_clr_active_rrq.
5890 * Returns 0 Success.
5894 lpfc_send_rrq(struct lpfc_hba
*phba
, struct lpfc_node_rrq
*rrq
)
5896 struct lpfc_nodelist
*ndlp
= lpfc_findnode_did(rrq
->vport
,
5898 if (lpfc_test_rrq_active(phba
, ndlp
, rrq
->xritag
))
5899 return lpfc_issue_els_rrq(rrq
->vport
, ndlp
,
5906 * lpfc_els_rsp_rpl_acc - Issue an accept rpl els command
5907 * @vport: pointer to a host virtual N_Port data structure.
5908 * @cmdsize: size of the ELS command.
5909 * @oldiocb: pointer to the original lpfc command iocb data structure.
5910 * @ndlp: pointer to a node-list data structure.
5912 * This routine issuees an Accept (ACC) Read Port List (RPL) ELS command.
5913 * It is to be called by the lpfc_els_rcv_rpl() routine to accept the RPL.
5915 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
5916 * will be incremented by 1 for holding the ndlp and the reference to ndlp
5917 * will be stored into the context1 field of the IOCB for the completion
5918 * callback function to the RPL Accept Response ELS command.
5921 * 0 - Successfully issued ACC RPL ELS command
5922 * 1 - Failed to issue ACC RPL ELS command
5925 lpfc_els_rsp_rpl_acc(struct lpfc_vport
*vport
, uint16_t cmdsize
,
5926 struct lpfc_iocbq
*oldiocb
, struct lpfc_nodelist
*ndlp
)
5928 struct lpfc_hba
*phba
= vport
->phba
;
5929 IOCB_t
*icmd
, *oldcmd
;
5931 struct lpfc_iocbq
*elsiocb
;
5934 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
, ndlp
,
5935 ndlp
->nlp_DID
, ELS_CMD_ACC
);
5940 icmd
= &elsiocb
->iocb
;
5941 oldcmd
= &oldiocb
->iocb
;
5942 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
5943 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
5945 pcmd
= (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
5946 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
5947 pcmd
+= sizeof(uint16_t);
5948 *((uint16_t *)(pcmd
)) = be16_to_cpu(cmdsize
);
5949 pcmd
+= sizeof(uint16_t);
5951 /* Setup the RPL ACC payload */
5952 rpl_rsp
.listLen
= be32_to_cpu(1);
5954 rpl_rsp
.port_num_blk
.portNum
= 0;
5955 rpl_rsp
.port_num_blk
.portID
= be32_to_cpu(vport
->fc_myDID
);
5956 memcpy(&rpl_rsp
.port_num_blk
.portName
, &vport
->fc_portname
,
5957 sizeof(struct lpfc_name
));
5958 memcpy(pcmd
, &rpl_rsp
, cmdsize
- sizeof(uint32_t));
5959 /* Xmit ELS RPL ACC response tag <ulpIoTag> */
5960 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
5961 "0120 Xmit ELS RPL ACC response tag x%x "
5962 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
5964 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
5965 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
5967 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
5968 phba
->fc_stat
.elsXmitACC
++;
5969 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) ==
5971 lpfc_els_free_iocb(phba
, elsiocb
);
5978 * lpfc_els_rcv_rpl - Process an unsolicited rpl iocb
5979 * @vport: pointer to a host virtual N_Port data structure.
5980 * @cmdiocb: pointer to lpfc command iocb data structure.
5981 * @ndlp: pointer to a node-list data structure.
5983 * This routine processes Read Port List (RPL) IOCB received as an ELS
5984 * unsolicited event. It first checks the remote port state. If the remote
5985 * port is not in NLP_STE_UNMAPPED_NODE and NLP_STE_MAPPED_NODE states, it
5986 * invokes the lpfc_els_rsp_reject() routine to send reject response.
5987 * Otherwise, this routine then invokes the lpfc_els_rsp_rpl_acc() routine
5988 * to accept the RPL.
5991 * 0 - Successfully processed rpl iocb (currently always return 0)
5994 lpfc_els_rcv_rpl(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5995 struct lpfc_nodelist
*ndlp
)
5997 struct lpfc_dmabuf
*pcmd
;
6004 if ((ndlp
->nlp_state
!= NLP_STE_UNMAPPED_NODE
) &&
6005 (ndlp
->nlp_state
!= NLP_STE_MAPPED_NODE
)) {
6006 /* issue rejection response */
6007 stat
.un
.b
.lsRjtRsvd0
= 0;
6008 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
6009 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_CANT_GIVE_DATA
;
6010 stat
.un
.b
.vendorUnique
= 0;
6011 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
,
6013 /* rejected the unsolicited RPL request and done with it */
6017 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
6018 lp
= (uint32_t *) pcmd
->virt
;
6019 rpl
= (RPL
*) (lp
+ 1);
6020 maxsize
= be32_to_cpu(rpl
->maxsize
);
6022 /* We support only one port */
6023 if ((rpl
->index
== 0) &&
6025 ((maxsize
* sizeof(uint32_t)) >= sizeof(RPL_RSP
)))) {
6026 cmdsize
= sizeof(uint32_t) + sizeof(RPL_RSP
);
6028 cmdsize
= sizeof(uint32_t) + maxsize
* sizeof(uint32_t);
6030 lpfc_els_rsp_rpl_acc(vport
, cmdsize
, cmdiocb
, ndlp
);
6036 * lpfc_els_rcv_farp - Process an unsolicited farp request els command
6037 * @vport: pointer to a virtual N_Port data structure.
6038 * @cmdiocb: pointer to lpfc command iocb data structure.
6039 * @ndlp: pointer to a node-list data structure.
6041 * This routine processes Fibre Channel Address Resolution Protocol
6042 * (FARP) Request IOCB received as an ELS unsolicited event. Currently,
6043 * the lpfc driver only supports matching on WWPN or WWNN for FARP. As such,
6044 * FARP_MATCH_PORT flag and FARP_MATCH_NODE flag are checked against the
6045 * Match Flag in the FARP request IOCB: if FARP_MATCH_PORT flag is set, the
6046 * remote PortName is compared against the FC PortName stored in the @vport
6047 * data structure; if FARP_MATCH_NODE flag is set, the remote NodeName is
6048 * compared against the FC NodeName stored in the @vport data structure.
6049 * If any of these matches and the FARP_REQUEST_FARPR flag is set in the
6050 * FARP request IOCB Response Flag, the lpfc_issue_els_farpr() routine is
6051 * invoked to send out FARP Response to the remote node. Before sending the
6052 * FARP Response, however, the FARP_REQUEST_PLOGI flag is check in the FARP
6053 * request IOCB Response Flag and, if it is set, the lpfc_issue_els_plogi()
6054 * routine is invoked to log into the remote port first.
6057 * 0 - Either the FARP Match Mode not supported or successfully processed
6060 lpfc_els_rcv_farp(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
6061 struct lpfc_nodelist
*ndlp
)
6063 struct lpfc_dmabuf
*pcmd
;
6067 uint32_t cmd
, cnt
, did
;
6069 icmd
= &cmdiocb
->iocb
;
6070 did
= icmd
->un
.elsreq64
.remoteID
;
6071 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
6072 lp
= (uint32_t *) pcmd
->virt
;
6076 /* FARP-REQ received from DID <did> */
6077 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
6078 "0601 FARP-REQ received from DID x%x\n", did
);
6079 /* We will only support match on WWPN or WWNN */
6080 if (fp
->Mflags
& ~(FARP_MATCH_NODE
| FARP_MATCH_PORT
)) {
6085 /* If this FARP command is searching for my portname */
6086 if (fp
->Mflags
& FARP_MATCH_PORT
) {
6087 if (memcmp(&fp
->RportName
, &vport
->fc_portname
,
6088 sizeof(struct lpfc_name
)) == 0)
6092 /* If this FARP command is searching for my nodename */
6093 if (fp
->Mflags
& FARP_MATCH_NODE
) {
6094 if (memcmp(&fp
->RnodeName
, &vport
->fc_nodename
,
6095 sizeof(struct lpfc_name
)) == 0)
6100 if ((ndlp
->nlp_state
== NLP_STE_UNMAPPED_NODE
) ||
6101 (ndlp
->nlp_state
== NLP_STE_MAPPED_NODE
)) {
6102 /* Log back into the node before sending the FARP. */
6103 if (fp
->Rflags
& FARP_REQUEST_PLOGI
) {
6104 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
6105 lpfc_nlp_set_state(vport
, ndlp
,
6106 NLP_STE_PLOGI_ISSUE
);
6107 lpfc_issue_els_plogi(vport
, ndlp
->nlp_DID
, 0);
6110 /* Send a FARP response to that node */
6111 if (fp
->Rflags
& FARP_REQUEST_FARPR
)
6112 lpfc_issue_els_farpr(vport
, did
, 0);
6119 * lpfc_els_rcv_farpr - Process an unsolicited farp response iocb
6120 * @vport: pointer to a host virtual N_Port data structure.
6121 * @cmdiocb: pointer to lpfc command iocb data structure.
6122 * @ndlp: pointer to a node-list data structure.
6124 * This routine processes Fibre Channel Address Resolution Protocol
6125 * Response (FARPR) IOCB received as an ELS unsolicited event. It simply
6126 * invokes the lpfc_els_rsp_acc() routine to the remote node to accept
6127 * the FARP response request.
6130 * 0 - Successfully processed FARPR IOCB (currently always return 0)
6133 lpfc_els_rcv_farpr(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
6134 struct lpfc_nodelist
*ndlp
)
6136 struct lpfc_dmabuf
*pcmd
;
6141 icmd
= &cmdiocb
->iocb
;
6142 did
= icmd
->un
.elsreq64
.remoteID
;
6143 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
6144 lp
= (uint32_t *) pcmd
->virt
;
6147 /* FARP-RSP received from DID <did> */
6148 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
6149 "0600 FARP-RSP received from DID x%x\n", did
);
6150 /* ACCEPT the Farp resp request */
6151 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
, ndlp
, NULL
);
6157 * lpfc_els_rcv_fan - Process an unsolicited fan iocb command
6158 * @vport: pointer to a host virtual N_Port data structure.
6159 * @cmdiocb: pointer to lpfc command iocb data structure.
6160 * @fan_ndlp: pointer to a node-list data structure.
6162 * This routine processes a Fabric Address Notification (FAN) IOCB
6163 * command received as an ELS unsolicited event. The FAN ELS command will
6164 * only be processed on a physical port (i.e., the @vport represents the
6165 * physical port). The fabric NodeName and PortName from the FAN IOCB are
6166 * compared against those in the phba data structure. If any of those is
6167 * different, the lpfc_initial_flogi() routine is invoked to initialize
6168 * Fabric Login (FLOGI) to the fabric to start the discover over. Otherwise,
6169 * if both of those are identical, the lpfc_issue_fabric_reglogin() routine
6170 * is invoked to register login to the fabric.
6173 * 0 - Successfully processed fan iocb (currently always return 0).
6176 lpfc_els_rcv_fan(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
6177 struct lpfc_nodelist
*fan_ndlp
)
6179 struct lpfc_hba
*phba
= vport
->phba
;
6183 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
, "0265 FAN received\n");
6184 lp
= (uint32_t *)((struct lpfc_dmabuf
*)cmdiocb
->context2
)->virt
;
6186 /* FAN received; Fan does not have a reply sequence */
6187 if ((vport
== phba
->pport
) &&
6188 (vport
->port_state
== LPFC_LOCAL_CFG_LINK
)) {
6189 if ((memcmp(&phba
->fc_fabparam
.nodeName
, &fp
->FnodeName
,
6190 sizeof(struct lpfc_name
))) ||
6191 (memcmp(&phba
->fc_fabparam
.portName
, &fp
->FportName
,
6192 sizeof(struct lpfc_name
)))) {
6193 /* This port has switched fabrics. FLOGI is required */
6194 lpfc_issue_init_vfi(vport
);
6196 /* FAN verified - skip FLOGI */
6197 vport
->fc_myDID
= vport
->fc_prevDID
;
6198 if (phba
->sli_rev
< LPFC_SLI_REV4
)
6199 lpfc_issue_fabric_reglogin(vport
);
6201 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
6202 "3138 Need register VFI: (x%x/%x)\n",
6203 vport
->fc_prevDID
, vport
->fc_myDID
);
6204 lpfc_issue_reg_vfi(vport
);
6212 * lpfc_els_timeout - Handler funciton to the els timer
6213 * @ptr: holder for the timer function associated data.
6215 * This routine is invoked by the ELS timer after timeout. It posts the ELS
6216 * timer timeout event by setting the WORKER_ELS_TMO bit to the work port
6217 * event bitmap and then invokes the lpfc_worker_wake_up() routine to wake
6218 * up the worker thread. It is for the worker thread to invoke the routine
6219 * lpfc_els_timeout_handler() to work on the posted event WORKER_ELS_TMO.
6222 lpfc_els_timeout(unsigned long ptr
)
6224 struct lpfc_vport
*vport
= (struct lpfc_vport
*) ptr
;
6225 struct lpfc_hba
*phba
= vport
->phba
;
6226 uint32_t tmo_posted
;
6227 unsigned long iflag
;
6229 spin_lock_irqsave(&vport
->work_port_lock
, iflag
);
6230 tmo_posted
= vport
->work_port_events
& WORKER_ELS_TMO
;
6231 if ((!tmo_posted
) && (!(vport
->load_flag
& FC_UNLOADING
)))
6232 vport
->work_port_events
|= WORKER_ELS_TMO
;
6233 spin_unlock_irqrestore(&vport
->work_port_lock
, iflag
);
6235 if ((!tmo_posted
) && (!(vport
->load_flag
& FC_UNLOADING
)))
6236 lpfc_worker_wake_up(phba
);
6242 * lpfc_els_timeout_handler - Process an els timeout event
6243 * @vport: pointer to a virtual N_Port data structure.
6245 * This routine is the actual handler function that processes an ELS timeout
6246 * event. It walks the ELS ring to get and abort all the IOCBs (except the
6247 * ABORT/CLOSE/FARP/FARPR/FDISC), which are associated with the @vport by
6248 * invoking the lpfc_sli_issue_abort_iotag() routine.
6251 lpfc_els_timeout_handler(struct lpfc_vport
*vport
)
6253 struct lpfc_hba
*phba
= vport
->phba
;
6254 struct lpfc_sli_ring
*pring
;
6255 struct lpfc_iocbq
*tmp_iocb
, *piocb
;
6257 struct lpfc_dmabuf
*pcmd
;
6258 uint32_t els_command
= 0;
6260 uint32_t remote_ID
= 0xffffffff;
6261 LIST_HEAD(abort_list
);
6264 timeout
= (uint32_t)(phba
->fc_ratov
<< 1);
6266 pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
6267 if ((phba
->pport
->load_flag
& FC_UNLOADING
))
6269 spin_lock_irq(&phba
->hbalock
);
6270 if (phba
->sli_rev
== LPFC_SLI_REV4
)
6271 spin_lock(&pring
->ring_lock
);
6273 if ((phba
->pport
->load_flag
& FC_UNLOADING
)) {
6274 if (phba
->sli_rev
== LPFC_SLI_REV4
)
6275 spin_unlock(&pring
->ring_lock
);
6276 spin_unlock_irq(&phba
->hbalock
);
6280 list_for_each_entry_safe(piocb
, tmp_iocb
, &pring
->txcmplq
, list
) {
6283 if ((piocb
->iocb_flag
& LPFC_IO_LIBDFC
) != 0 ||
6284 piocb
->iocb
.ulpCommand
== CMD_ABORT_XRI_CN
||
6285 piocb
->iocb
.ulpCommand
== CMD_CLOSE_XRI_CN
)
6288 if (piocb
->vport
!= vport
)
6291 pcmd
= (struct lpfc_dmabuf
*) piocb
->context2
;
6293 els_command
= *(uint32_t *) (pcmd
->virt
);
6295 if (els_command
== ELS_CMD_FARP
||
6296 els_command
== ELS_CMD_FARPR
||
6297 els_command
== ELS_CMD_FDISC
)
6300 if (piocb
->drvrTimeout
> 0) {
6301 if (piocb
->drvrTimeout
>= timeout
)
6302 piocb
->drvrTimeout
-= timeout
;
6304 piocb
->drvrTimeout
= 0;
6308 remote_ID
= 0xffffffff;
6309 if (cmd
->ulpCommand
!= CMD_GEN_REQUEST64_CR
)
6310 remote_ID
= cmd
->un
.elsreq64
.remoteID
;
6312 struct lpfc_nodelist
*ndlp
;
6313 ndlp
= __lpfc_findnode_rpi(vport
, cmd
->ulpContext
);
6314 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
))
6315 remote_ID
= ndlp
->nlp_DID
;
6317 list_add_tail(&piocb
->dlist
, &abort_list
);
6319 if (phba
->sli_rev
== LPFC_SLI_REV4
)
6320 spin_unlock(&pring
->ring_lock
);
6321 spin_unlock_irq(&phba
->hbalock
);
6323 list_for_each_entry_safe(piocb
, tmp_iocb
, &abort_list
, dlist
) {
6325 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
6326 "0127 ELS timeout Data: x%x x%x x%x "
6327 "x%x\n", els_command
,
6328 remote_ID
, cmd
->ulpCommand
, cmd
->ulpIoTag
);
6329 spin_lock_irq(&phba
->hbalock
);
6330 list_del_init(&piocb
->dlist
);
6331 lpfc_sli_issue_abort_iotag(phba
, pring
, piocb
);
6332 spin_unlock_irq(&phba
->hbalock
);
6335 if (!list_empty(&phba
->sli
.ring
[LPFC_ELS_RING
].txcmplq
))
6336 if (!(phba
->pport
->load_flag
& FC_UNLOADING
))
6337 mod_timer(&vport
->els_tmofunc
,
6338 jiffies
+ msecs_to_jiffies(1000 * timeout
));
6342 * lpfc_els_flush_cmd - Clean up the outstanding els commands to a vport
6343 * @vport: pointer to a host virtual N_Port data structure.
6345 * This routine is used to clean up all the outstanding ELS commands on a
6346 * @vport. It first aborts the @vport by invoking lpfc_fabric_abort_vport()
6347 * routine. After that, it walks the ELS transmit queue to remove all the
6348 * IOCBs with the @vport other than the QUE_RING and ABORT/CLOSE IOCBs. For
6349 * the IOCBs with a non-NULL completion callback function, the callback
6350 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and
6351 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs with a NULL completion
6352 * callback function, the IOCB will simply be released. Finally, it walks
6353 * the ELS transmit completion queue to issue an abort IOCB to any transmit
6354 * completion queue IOCB that is associated with the @vport and is not
6355 * an IOCB from libdfc (i.e., the management plane IOCBs that are not
6356 * part of the discovery state machine) out to HBA by invoking the
6357 * lpfc_sli_issue_abort_iotag() routine. Note that this function issues the
6358 * abort IOCB to any transmit completion queueed IOCB, it does not guarantee
6359 * the IOCBs are aborted when this function returns.
6362 lpfc_els_flush_cmd(struct lpfc_vport
*vport
)
6364 LIST_HEAD(abort_list
);
6365 struct lpfc_hba
*phba
= vport
->phba
;
6366 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
6367 struct lpfc_iocbq
*tmp_iocb
, *piocb
;
6370 lpfc_fabric_abort_vport(vport
);
6372 * For SLI3, only the hbalock is required. But SLI4 needs to coordinate
6373 * with the ring insert operation. Because lpfc_sli_issue_abort_iotag
6374 * ultimately grabs the ring_lock, the driver must splice the list into
6375 * a working list and release the locks before calling the abort.
6377 spin_lock_irq(&phba
->hbalock
);
6378 if (phba
->sli_rev
== LPFC_SLI_REV4
)
6379 spin_lock(&pring
->ring_lock
);
6381 list_for_each_entry_safe(piocb
, tmp_iocb
, &pring
->txcmplq
, list
) {
6382 if (piocb
->iocb_flag
& LPFC_IO_LIBDFC
)
6385 if (piocb
->vport
!= vport
)
6387 list_add_tail(&piocb
->dlist
, &abort_list
);
6389 if (phba
->sli_rev
== LPFC_SLI_REV4
)
6390 spin_unlock(&pring
->ring_lock
);
6391 spin_unlock_irq(&phba
->hbalock
);
6392 /* Abort each iocb on the aborted list and remove the dlist links. */
6393 list_for_each_entry_safe(piocb
, tmp_iocb
, &abort_list
, dlist
) {
6394 spin_lock_irq(&phba
->hbalock
);
6395 list_del_init(&piocb
->dlist
);
6396 lpfc_sli_issue_abort_iotag(phba
, pring
, piocb
);
6397 spin_unlock_irq(&phba
->hbalock
);
6399 if (!list_empty(&abort_list
))
6400 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
6401 "3387 abort list for txq not empty\n");
6402 INIT_LIST_HEAD(&abort_list
);
6404 spin_lock_irq(&phba
->hbalock
);
6405 if (phba
->sli_rev
== LPFC_SLI_REV4
)
6406 spin_lock(&pring
->ring_lock
);
6408 list_for_each_entry_safe(piocb
, tmp_iocb
, &pring
->txq
, list
) {
6411 if (piocb
->iocb_flag
& LPFC_IO_LIBDFC
) {
6415 /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */
6416 if (cmd
->ulpCommand
== CMD_QUE_RING_BUF_CN
||
6417 cmd
->ulpCommand
== CMD_QUE_RING_BUF64_CN
||
6418 cmd
->ulpCommand
== CMD_CLOSE_XRI_CN
||
6419 cmd
->ulpCommand
== CMD_ABORT_XRI_CN
)
6422 if (piocb
->vport
!= vport
)
6425 list_del_init(&piocb
->list
);
6426 list_add_tail(&piocb
->list
, &abort_list
);
6428 if (phba
->sli_rev
== LPFC_SLI_REV4
)
6429 spin_unlock(&pring
->ring_lock
);
6430 spin_unlock_irq(&phba
->hbalock
);
6432 /* Cancell all the IOCBs from the completions list */
6433 lpfc_sli_cancel_iocbs(phba
, &abort_list
,
6434 IOSTAT_LOCAL_REJECT
, IOERR_SLI_ABORTED
);
6440 * lpfc_els_flush_all_cmd - Clean up all the outstanding els commands to a HBA
6441 * @phba: pointer to lpfc hba data structure.
6443 * This routine is used to clean up all the outstanding ELS commands on a
6444 * @phba. It first aborts the @phba by invoking the lpfc_fabric_abort_hba()
6445 * routine. After that, it walks the ELS transmit queue to remove all the
6446 * IOCBs to the @phba other than the QUE_RING and ABORT/CLOSE IOCBs. For
6447 * the IOCBs with the completion callback function associated, the callback
6448 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and
6449 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs without the completion
6450 * callback function associated, the IOCB will simply be released. Finally,
6451 * it walks the ELS transmit completion queue to issue an abort IOCB to any
6452 * transmit completion queue IOCB that is not an IOCB from libdfc (i.e., the
6453 * management plane IOCBs that are not part of the discovery state machine)
6454 * out to HBA by invoking the lpfc_sli_issue_abort_iotag() routine.
6457 lpfc_els_flush_all_cmd(struct lpfc_hba
*phba
)
6459 struct lpfc_vport
*vport
;
6460 list_for_each_entry(vport
, &phba
->port_list
, listentry
)
6461 lpfc_els_flush_cmd(vport
);
6467 * lpfc_send_els_failure_event - Posts an ELS command failure event
6468 * @phba: Pointer to hba context object.
6469 * @cmdiocbp: Pointer to command iocb which reported error.
6470 * @rspiocbp: Pointer to response iocb which reported error.
6472 * This function sends an event when there is an ELS command
6476 lpfc_send_els_failure_event(struct lpfc_hba
*phba
,
6477 struct lpfc_iocbq
*cmdiocbp
,
6478 struct lpfc_iocbq
*rspiocbp
)
6480 struct lpfc_vport
*vport
= cmdiocbp
->vport
;
6481 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
6482 struct lpfc_lsrjt_event lsrjt_event
;
6483 struct lpfc_fabric_event_header fabric_event
;
6485 struct lpfc_nodelist
*ndlp
;
6488 ndlp
= cmdiocbp
->context1
;
6489 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
))
6492 if (rspiocbp
->iocb
.ulpStatus
== IOSTAT_LS_RJT
) {
6493 lsrjt_event
.header
.event_type
= FC_REG_ELS_EVENT
;
6494 lsrjt_event
.header
.subcategory
= LPFC_EVENT_LSRJT_RCV
;
6495 memcpy(lsrjt_event
.header
.wwpn
, &ndlp
->nlp_portname
,
6496 sizeof(struct lpfc_name
));
6497 memcpy(lsrjt_event
.header
.wwnn
, &ndlp
->nlp_nodename
,
6498 sizeof(struct lpfc_name
));
6499 pcmd
= (uint32_t *) (((struct lpfc_dmabuf
*)
6500 cmdiocbp
->context2
)->virt
);
6501 lsrjt_event
.command
= (pcmd
!= NULL
) ? *pcmd
: 0;
6502 stat
.un
.lsRjtError
= be32_to_cpu(rspiocbp
->iocb
.un
.ulpWord
[4]);
6503 lsrjt_event
.reason_code
= stat
.un
.b
.lsRjtRsnCode
;
6504 lsrjt_event
.explanation
= stat
.un
.b
.lsRjtRsnCodeExp
;
6505 fc_host_post_vendor_event(shost
,
6506 fc_get_event_number(),
6507 sizeof(lsrjt_event
),
6508 (char *)&lsrjt_event
,
6512 if ((rspiocbp
->iocb
.ulpStatus
== IOSTAT_NPORT_BSY
) ||
6513 (rspiocbp
->iocb
.ulpStatus
== IOSTAT_FABRIC_BSY
)) {
6514 fabric_event
.event_type
= FC_REG_FABRIC_EVENT
;
6515 if (rspiocbp
->iocb
.ulpStatus
== IOSTAT_NPORT_BSY
)
6516 fabric_event
.subcategory
= LPFC_EVENT_PORT_BUSY
;
6518 fabric_event
.subcategory
= LPFC_EVENT_FABRIC_BUSY
;
6519 memcpy(fabric_event
.wwpn
, &ndlp
->nlp_portname
,
6520 sizeof(struct lpfc_name
));
6521 memcpy(fabric_event
.wwnn
, &ndlp
->nlp_nodename
,
6522 sizeof(struct lpfc_name
));
6523 fc_host_post_vendor_event(shost
,
6524 fc_get_event_number(),
6525 sizeof(fabric_event
),
6526 (char *)&fabric_event
,
6534 * lpfc_send_els_event - Posts unsolicited els event
6535 * @vport: Pointer to vport object.
6536 * @ndlp: Pointer FC node object.
6537 * @cmd: ELS command code.
6539 * This function posts an event when there is an incoming
6540 * unsolicited ELS command.
6543 lpfc_send_els_event(struct lpfc_vport
*vport
,
6544 struct lpfc_nodelist
*ndlp
,
6547 struct lpfc_els_event_header
*els_data
= NULL
;
6548 struct lpfc_logo_event
*logo_data
= NULL
;
6549 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
6551 if (*payload
== ELS_CMD_LOGO
) {
6552 logo_data
= kmalloc(sizeof(struct lpfc_logo_event
), GFP_KERNEL
);
6554 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
6555 "0148 Failed to allocate memory "
6556 "for LOGO event\n");
6559 els_data
= &logo_data
->header
;
6561 els_data
= kmalloc(sizeof(struct lpfc_els_event_header
),
6564 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
6565 "0149 Failed to allocate memory "
6570 els_data
->event_type
= FC_REG_ELS_EVENT
;
6573 els_data
->subcategory
= LPFC_EVENT_PLOGI_RCV
;
6576 els_data
->subcategory
= LPFC_EVENT_PRLO_RCV
;
6579 els_data
->subcategory
= LPFC_EVENT_ADISC_RCV
;
6582 els_data
->subcategory
= LPFC_EVENT_LOGO_RCV
;
6583 /* Copy the WWPN in the LOGO payload */
6584 memcpy(logo_data
->logo_wwpn
, &payload
[2],
6585 sizeof(struct lpfc_name
));
6591 memcpy(els_data
->wwpn
, &ndlp
->nlp_portname
, sizeof(struct lpfc_name
));
6592 memcpy(els_data
->wwnn
, &ndlp
->nlp_nodename
, sizeof(struct lpfc_name
));
6593 if (*payload
== ELS_CMD_LOGO
) {
6594 fc_host_post_vendor_event(shost
,
6595 fc_get_event_number(),
6596 sizeof(struct lpfc_logo_event
),
6601 fc_host_post_vendor_event(shost
,
6602 fc_get_event_number(),
6603 sizeof(struct lpfc_els_event_header
),
6614 * lpfc_els_unsol_buffer - Process an unsolicited event data buffer
6615 * @phba: pointer to lpfc hba data structure.
6616 * @pring: pointer to a SLI ring.
6617 * @vport: pointer to a host virtual N_Port data structure.
6618 * @elsiocb: pointer to lpfc els command iocb data structure.
6620 * This routine is used for processing the IOCB associated with a unsolicited
6621 * event. It first determines whether there is an existing ndlp that matches
6622 * the DID from the unsolicited IOCB. If not, it will create a new one with
6623 * the DID from the unsolicited IOCB. The ELS command from the unsolicited
6624 * IOCB is then used to invoke the proper routine and to set up proper state
6625 * of the discovery state machine.
6628 lpfc_els_unsol_buffer(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
6629 struct lpfc_vport
*vport
, struct lpfc_iocbq
*elsiocb
)
6631 struct Scsi_Host
*shost
;
6632 struct lpfc_nodelist
*ndlp
;
6635 uint32_t cmd
, did
, newnode
;
6636 uint8_t rjt_exp
, rjt_err
= 0;
6637 IOCB_t
*icmd
= &elsiocb
->iocb
;
6639 if (!vport
|| !(elsiocb
->context2
))
6643 payload
= ((struct lpfc_dmabuf
*)elsiocb
->context2
)->virt
;
6645 if ((phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
) == 0)
6646 lpfc_post_buffer(phba
, pring
, 1);
6648 did
= icmd
->un
.rcvels
.remoteID
;
6649 if (icmd
->ulpStatus
) {
6650 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6651 "RCV Unsol ELS: status:x%x/x%x did:x%x",
6652 icmd
->ulpStatus
, icmd
->un
.ulpWord
[4], did
);
6656 /* Check to see if link went down during discovery */
6657 if (lpfc_els_chk_latt(vport
))
6660 /* Ignore traffic received during vport shutdown. */
6661 if (vport
->load_flag
& FC_UNLOADING
)
6664 /* If NPort discovery is delayed drop incoming ELS */
6665 if ((vport
->fc_flag
& FC_DISC_DELAYED
) &&
6666 (cmd
!= ELS_CMD_PLOGI
))
6669 ndlp
= lpfc_findnode_did(vport
, did
);
6671 /* Cannot find existing Fabric ndlp, so allocate a new one */
6672 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
6676 lpfc_nlp_init(vport
, ndlp
, did
);
6677 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
6679 if ((did
& Fabric_DID_MASK
) == Fabric_DID_MASK
)
6680 ndlp
->nlp_type
|= NLP_FABRIC
;
6681 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
6682 ndlp
= lpfc_enable_node(vport
, ndlp
,
6683 NLP_STE_UNUSED_NODE
);
6686 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
6688 if ((did
& Fabric_DID_MASK
) == Fabric_DID_MASK
)
6689 ndlp
->nlp_type
|= NLP_FABRIC
;
6690 } else if (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
) {
6691 /* This is similar to the new node path */
6692 ndlp
= lpfc_nlp_get(ndlp
);
6695 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
6699 phba
->fc_stat
.elsRcvFrame
++;
6702 * Do not process any unsolicited ELS commands
6703 * if the ndlp is in DEV_LOSS
6705 if (ndlp
->nlp_add_flag
& NLP_IN_DEV_LOSS
)
6708 elsiocb
->context1
= lpfc_nlp_get(ndlp
);
6709 elsiocb
->vport
= vport
;
6711 if ((cmd
& ELS_CMD_MASK
) == ELS_CMD_RSCN
) {
6712 cmd
&= ELS_CMD_MASK
;
6714 /* ELS command <elsCmd> received from NPORT <did> */
6715 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
6716 "0112 ELS command x%x received from NPORT x%x "
6717 "Data: x%x x%x x%x x%x\n",
6718 cmd
, did
, vport
->port_state
, vport
->fc_flag
,
6719 vport
->fc_myDID
, vport
->fc_prevDID
);
6722 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6723 "RCV PLOGI: did:x%x/ste:x%x flg:x%x",
6724 did
, vport
->port_state
, ndlp
->nlp_flag
);
6726 phba
->fc_stat
.elsRcvPLOGI
++;
6727 ndlp
= lpfc_plogi_confirm_nport(phba
, payload
, ndlp
);
6728 if (phba
->sli_rev
== LPFC_SLI_REV4
&&
6729 (phba
->pport
->fc_flag
& FC_PT2PT
)) {
6730 vport
->fc_prevDID
= vport
->fc_myDID
;
6731 /* Our DID needs to be updated before registering
6732 * the vfi. This is done in lpfc_rcv_plogi but
6733 * that is called after the reg_vfi.
6735 vport
->fc_myDID
= elsiocb
->iocb
.un
.rcvels
.parmRo
;
6736 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
6737 "3312 Remote port assigned DID x%x "
6738 "%x\n", vport
->fc_myDID
,
6742 lpfc_send_els_event(vport
, ndlp
, payload
);
6744 /* If Nport discovery is delayed, reject PLOGIs */
6745 if (vport
->fc_flag
& FC_DISC_DELAYED
) {
6746 rjt_err
= LSRJT_UNABLE_TPC
;
6747 rjt_exp
= LSEXP_NOTHING_MORE
;
6750 shost
= lpfc_shost_from_vport(vport
);
6751 if (vport
->port_state
< LPFC_DISC_AUTH
) {
6752 if (!(phba
->pport
->fc_flag
& FC_PT2PT
) ||
6753 (phba
->pport
->fc_flag
& FC_PT2PT_PLOGI
)) {
6754 rjt_err
= LSRJT_UNABLE_TPC
;
6755 rjt_exp
= LSEXP_NOTHING_MORE
;
6758 /* We get here, and drop thru, if we are PT2PT with
6759 * another NPort and the other side has initiated
6760 * the PLOGI before responding to our FLOGI.
6762 if (phba
->sli_rev
== LPFC_SLI_REV4
&&
6763 (phba
->fc_topology_changed
||
6764 vport
->fc_myDID
!= vport
->fc_prevDID
)) {
6765 lpfc_unregister_fcf_prep(phba
);
6766 spin_lock_irq(shost
->host_lock
);
6767 vport
->fc_flag
&= ~FC_VFI_REGISTERED
;
6768 spin_unlock_irq(shost
->host_lock
);
6769 phba
->fc_topology_changed
= 0;
6770 lpfc_issue_reg_vfi(vport
);
6774 spin_lock_irq(shost
->host_lock
);
6775 ndlp
->nlp_flag
&= ~NLP_TARGET_REMOVE
;
6776 spin_unlock_irq(shost
->host_lock
);
6778 lpfc_disc_state_machine(vport
, ndlp
, elsiocb
,
6783 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6784 "RCV FLOGI: did:x%x/ste:x%x flg:x%x",
6785 did
, vport
->port_state
, ndlp
->nlp_flag
);
6787 phba
->fc_stat
.elsRcvFLOGI
++;
6788 lpfc_els_rcv_flogi(vport
, elsiocb
, ndlp
);
6793 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6794 "RCV LOGO: did:x%x/ste:x%x flg:x%x",
6795 did
, vport
->port_state
, ndlp
->nlp_flag
);
6797 phba
->fc_stat
.elsRcvLOGO
++;
6798 lpfc_send_els_event(vport
, ndlp
, payload
);
6799 if (vport
->port_state
< LPFC_DISC_AUTH
) {
6800 rjt_err
= LSRJT_UNABLE_TPC
;
6801 rjt_exp
= LSEXP_NOTHING_MORE
;
6804 lpfc_disc_state_machine(vport
, ndlp
, elsiocb
, NLP_EVT_RCV_LOGO
);
6807 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6808 "RCV PRLO: did:x%x/ste:x%x flg:x%x",
6809 did
, vport
->port_state
, ndlp
->nlp_flag
);
6811 phba
->fc_stat
.elsRcvPRLO
++;
6812 lpfc_send_els_event(vport
, ndlp
, payload
);
6813 if (vport
->port_state
< LPFC_DISC_AUTH
) {
6814 rjt_err
= LSRJT_UNABLE_TPC
;
6815 rjt_exp
= LSEXP_NOTHING_MORE
;
6818 lpfc_disc_state_machine(vport
, ndlp
, elsiocb
, NLP_EVT_RCV_PRLO
);
6821 phba
->fc_stat
.elsRcvRSCN
++;
6822 lpfc_els_rcv_rscn(vport
, elsiocb
, ndlp
);
6827 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6828 "RCV ADISC: did:x%x/ste:x%x flg:x%x",
6829 did
, vport
->port_state
, ndlp
->nlp_flag
);
6831 lpfc_send_els_event(vport
, ndlp
, payload
);
6832 phba
->fc_stat
.elsRcvADISC
++;
6833 if (vport
->port_state
< LPFC_DISC_AUTH
) {
6834 rjt_err
= LSRJT_UNABLE_TPC
;
6835 rjt_exp
= LSEXP_NOTHING_MORE
;
6838 lpfc_disc_state_machine(vport
, ndlp
, elsiocb
,
6842 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6843 "RCV PDISC: did:x%x/ste:x%x flg:x%x",
6844 did
, vport
->port_state
, ndlp
->nlp_flag
);
6846 phba
->fc_stat
.elsRcvPDISC
++;
6847 if (vport
->port_state
< LPFC_DISC_AUTH
) {
6848 rjt_err
= LSRJT_UNABLE_TPC
;
6849 rjt_exp
= LSEXP_NOTHING_MORE
;
6852 lpfc_disc_state_machine(vport
, ndlp
, elsiocb
,
6856 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6857 "RCV FARPR: did:x%x/ste:x%x flg:x%x",
6858 did
, vport
->port_state
, ndlp
->nlp_flag
);
6860 phba
->fc_stat
.elsRcvFARPR
++;
6861 lpfc_els_rcv_farpr(vport
, elsiocb
, ndlp
);
6864 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6865 "RCV FARP: did:x%x/ste:x%x flg:x%x",
6866 did
, vport
->port_state
, ndlp
->nlp_flag
);
6868 phba
->fc_stat
.elsRcvFARP
++;
6869 lpfc_els_rcv_farp(vport
, elsiocb
, ndlp
);
6872 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6873 "RCV FAN: did:x%x/ste:x%x flg:x%x",
6874 did
, vport
->port_state
, ndlp
->nlp_flag
);
6876 phba
->fc_stat
.elsRcvFAN
++;
6877 lpfc_els_rcv_fan(vport
, elsiocb
, ndlp
);
6880 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6881 "RCV PRLI: did:x%x/ste:x%x flg:x%x",
6882 did
, vport
->port_state
, ndlp
->nlp_flag
);
6884 phba
->fc_stat
.elsRcvPRLI
++;
6885 if (vport
->port_state
< LPFC_DISC_AUTH
) {
6886 rjt_err
= LSRJT_UNABLE_TPC
;
6887 rjt_exp
= LSEXP_NOTHING_MORE
;
6890 lpfc_disc_state_machine(vport
, ndlp
, elsiocb
, NLP_EVT_RCV_PRLI
);
6893 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6894 "RCV LIRR: did:x%x/ste:x%x flg:x%x",
6895 did
, vport
->port_state
, ndlp
->nlp_flag
);
6897 phba
->fc_stat
.elsRcvLIRR
++;
6898 lpfc_els_rcv_lirr(vport
, elsiocb
, ndlp
);
6903 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6904 "RCV RLS: did:x%x/ste:x%x flg:x%x",
6905 did
, vport
->port_state
, ndlp
->nlp_flag
);
6907 phba
->fc_stat
.elsRcvRLS
++;
6908 lpfc_els_rcv_rls(vport
, elsiocb
, ndlp
);
6913 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6914 "RCV RPS: did:x%x/ste:x%x flg:x%x",
6915 did
, vport
->port_state
, ndlp
->nlp_flag
);
6917 phba
->fc_stat
.elsRcvRPS
++;
6918 lpfc_els_rcv_rps(vport
, elsiocb
, ndlp
);
6923 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6924 "RCV RPL: did:x%x/ste:x%x flg:x%x",
6925 did
, vport
->port_state
, ndlp
->nlp_flag
);
6927 phba
->fc_stat
.elsRcvRPL
++;
6928 lpfc_els_rcv_rpl(vport
, elsiocb
, ndlp
);
6933 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6934 "RCV RNID: did:x%x/ste:x%x flg:x%x",
6935 did
, vport
->port_state
, ndlp
->nlp_flag
);
6937 phba
->fc_stat
.elsRcvRNID
++;
6938 lpfc_els_rcv_rnid(vport
, elsiocb
, ndlp
);
6943 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6944 "RCV RTV: did:x%x/ste:x%x flg:x%x",
6945 did
, vport
->port_state
, ndlp
->nlp_flag
);
6946 phba
->fc_stat
.elsRcvRTV
++;
6947 lpfc_els_rcv_rtv(vport
, elsiocb
, ndlp
);
6952 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6953 "RCV RRQ: did:x%x/ste:x%x flg:x%x",
6954 did
, vport
->port_state
, ndlp
->nlp_flag
);
6956 phba
->fc_stat
.elsRcvRRQ
++;
6957 lpfc_els_rcv_rrq(vport
, elsiocb
, ndlp
);
6962 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6963 "RCV ECHO: did:x%x/ste:x%x flg:x%x",
6964 did
, vport
->port_state
, ndlp
->nlp_flag
);
6966 phba
->fc_stat
.elsRcvECHO
++;
6967 lpfc_els_rcv_echo(vport
, elsiocb
, ndlp
);
6972 /* receive this due to exchange closed */
6973 rjt_err
= LSRJT_UNABLE_TPC
;
6974 rjt_exp
= LSEXP_INVALID_OX_RX
;
6977 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6978 "RCV ELS cmd: cmd:x%x did:x%x/ste:x%x",
6979 cmd
, did
, vport
->port_state
);
6981 /* Unsupported ELS command, reject */
6982 rjt_err
= LSRJT_CMD_UNSUPPORTED
;
6983 rjt_exp
= LSEXP_NOTHING_MORE
;
6985 /* Unknown ELS command <elsCmd> received from NPORT <did> */
6986 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
6987 "0115 Unknown ELS command x%x "
6988 "received from NPORT x%x\n", cmd
, did
);
6994 /* check if need to LS_RJT received ELS cmd */
6996 memset(&stat
, 0, sizeof(stat
));
6997 stat
.un
.b
.lsRjtRsnCode
= rjt_err
;
6998 stat
.un
.b
.lsRjtRsnCodeExp
= rjt_exp
;
6999 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, elsiocb
, ndlp
,
7003 lpfc_nlp_put(elsiocb
->context1
);
7004 elsiocb
->context1
= NULL
;
7008 if (vport
&& !(vport
->load_flag
& FC_UNLOADING
))
7009 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
7010 "0111 Dropping received ELS cmd "
7011 "Data: x%x x%x x%x\n",
7012 icmd
->ulpStatus
, icmd
->un
.ulpWord
[4], icmd
->ulpTimeout
);
7013 phba
->fc_stat
.elsRcvDrop
++;
7017 * lpfc_els_unsol_event - Process an unsolicited event from an els sli ring
7018 * @phba: pointer to lpfc hba data structure.
7019 * @pring: pointer to a SLI ring.
7020 * @elsiocb: pointer to lpfc els iocb data structure.
7022 * This routine is used to process an unsolicited event received from a SLI
7023 * (Service Level Interface) ring. The actual processing of the data buffer
7024 * associated with the unsolicited event is done by invoking the routine
7025 * lpfc_els_unsol_buffer() after properly set up the iocb buffer from the
7026 * SLI ring on which the unsolicited event was received.
7029 lpfc_els_unsol_event(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
7030 struct lpfc_iocbq
*elsiocb
)
7032 struct lpfc_vport
*vport
= phba
->pport
;
7033 IOCB_t
*icmd
= &elsiocb
->iocb
;
7035 struct lpfc_dmabuf
*bdeBuf1
= elsiocb
->context2
;
7036 struct lpfc_dmabuf
*bdeBuf2
= elsiocb
->context3
;
7038 elsiocb
->context1
= NULL
;
7039 elsiocb
->context2
= NULL
;
7040 elsiocb
->context3
= NULL
;
7042 if (icmd
->ulpStatus
== IOSTAT_NEED_BUFFER
) {
7043 lpfc_sli_hbqbuf_add_hbqs(phba
, LPFC_ELS_HBQ
);
7044 } else if (icmd
->ulpStatus
== IOSTAT_LOCAL_REJECT
&&
7045 (icmd
->un
.ulpWord
[4] & IOERR_PARAM_MASK
) ==
7046 IOERR_RCV_BUFFER_WAITING
) {
7047 phba
->fc_stat
.NoRcvBuf
++;
7048 /* Not enough posted buffers; Try posting more buffers */
7049 if (!(phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
))
7050 lpfc_post_buffer(phba
, pring
, 0);
7054 if ((phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
7055 (icmd
->ulpCommand
== CMD_IOCB_RCV_ELS64_CX
||
7056 icmd
->ulpCommand
== CMD_IOCB_RCV_SEQ64_CX
)) {
7057 if (icmd
->unsli3
.rcvsli3
.vpi
== 0xffff)
7058 vport
= phba
->pport
;
7060 vport
= lpfc_find_vport_by_vpid(phba
,
7061 icmd
->unsli3
.rcvsli3
.vpi
);
7064 /* If there are no BDEs associated
7065 * with this IOCB, there is nothing to do.
7067 if (icmd
->ulpBdeCount
== 0)
7070 /* type of ELS cmd is first 32bit word
7073 if (phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
) {
7074 elsiocb
->context2
= bdeBuf1
;
7076 paddr
= getPaddr(icmd
->un
.cont64
[0].addrHigh
,
7077 icmd
->un
.cont64
[0].addrLow
);
7078 elsiocb
->context2
= lpfc_sli_ringpostbuf_get(phba
, pring
,
7082 lpfc_els_unsol_buffer(phba
, pring
, vport
, elsiocb
);
7084 * The different unsolicited event handlers would tell us
7085 * if they are done with "mp" by setting context2 to NULL.
7087 if (elsiocb
->context2
) {
7088 lpfc_in_buf_free(phba
, (struct lpfc_dmabuf
*)elsiocb
->context2
);
7089 elsiocb
->context2
= NULL
;
7092 /* RCV_ELS64_CX provide for 2 BDEs - process 2nd if included */
7093 if ((phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
) &&
7094 icmd
->ulpBdeCount
== 2) {
7095 elsiocb
->context2
= bdeBuf2
;
7096 lpfc_els_unsol_buffer(phba
, pring
, vport
, elsiocb
);
7097 /* free mp if we are done with it */
7098 if (elsiocb
->context2
) {
7099 lpfc_in_buf_free(phba
, elsiocb
->context2
);
7100 elsiocb
->context2
= NULL
;
7106 * lpfc_do_scr_ns_plogi - Issue a plogi to the name server for scr
7107 * @phba: pointer to lpfc hba data structure.
7108 * @vport: pointer to a virtual N_Port data structure.
7110 * This routine issues a Port Login (PLOGI) to the Name Server with
7111 * State Change Request (SCR) for a @vport. This routine will create an
7112 * ndlp for the Name Server associated to the @vport if such node does
7113 * not already exist. The PLOGI to Name Server is issued by invoking the
7114 * lpfc_issue_els_plogi() routine. If Fabric-Device Management Interface
7115 * (FDMI) is configured to the @vport, a FDMI node will be created and
7116 * the PLOGI to FDMI is issued by invoking lpfc_issue_els_plogi() routine.
7119 lpfc_do_scr_ns_plogi(struct lpfc_hba
*phba
, struct lpfc_vport
*vport
)
7121 struct lpfc_nodelist
*ndlp
, *ndlp_fdmi
;
7122 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
7125 * If lpfc_delay_discovery parameter is set and the clean address
7126 * bit is cleared and fc fabric parameters chenged, delay FC NPort
7129 spin_lock_irq(shost
->host_lock
);
7130 if (vport
->fc_flag
& FC_DISC_DELAYED
) {
7131 spin_unlock_irq(shost
->host_lock
);
7132 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
,
7133 "3334 Delay fc port discovery for %d seconds\n",
7135 mod_timer(&vport
->delayed_disc_tmo
,
7136 jiffies
+ msecs_to_jiffies(1000 * phba
->fc_ratov
));
7139 spin_unlock_irq(shost
->host_lock
);
7141 ndlp
= lpfc_findnode_did(vport
, NameServer_DID
);
7143 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
7145 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
7146 lpfc_disc_start(vport
);
7149 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
7150 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
7151 "0251 NameServer login: no memory\n");
7154 lpfc_nlp_init(vport
, ndlp
, NameServer_DID
);
7155 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
7156 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_UNUSED_NODE
);
7158 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
7159 lpfc_disc_start(vport
);
7162 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
7163 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
7164 "0348 NameServer login: node freed\n");
7168 ndlp
->nlp_type
|= NLP_FABRIC
;
7170 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_PLOGI_ISSUE
);
7172 if (lpfc_issue_els_plogi(vport
, ndlp
->nlp_DID
, 0)) {
7173 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
7174 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
7175 "0252 Cannot issue NameServer login\n");
7179 if (vport
->cfg_fdmi_on
& LPFC_FDMI_SUPPORT
) {
7180 /* If this is the first time, allocate an ndlp and initialize
7181 * it. Otherwise, make sure the node is enabled and then do the
7184 ndlp_fdmi
= lpfc_findnode_did(vport
, FDMI_DID
);
7186 ndlp_fdmi
= mempool_alloc(phba
->nlp_mem_pool
,
7189 lpfc_nlp_init(vport
, ndlp_fdmi
, FDMI_DID
);
7190 ndlp_fdmi
->nlp_type
|= NLP_FABRIC
;
7194 if (!NLP_CHK_NODE_ACT(ndlp_fdmi
))
7195 ndlp_fdmi
= lpfc_enable_node(vport
,
7200 lpfc_nlp_set_state(vport
, ndlp_fdmi
,
7201 NLP_STE_PLOGI_ISSUE
);
7202 lpfc_issue_els_plogi(vport
, ndlp_fdmi
->nlp_DID
, 0);
7208 * lpfc_cmpl_reg_new_vport - Completion callback function to register new vport
7209 * @phba: pointer to lpfc hba data structure.
7210 * @pmb: pointer to the driver internal queue element for mailbox command.
7212 * This routine is the completion callback function to register new vport
7213 * mailbox command. If the new vport mailbox command completes successfully,
7214 * the fabric registration login shall be performed on physical port (the
7215 * new vport created is actually a physical port, with VPI 0) or the port
7216 * login to Name Server for State Change Request (SCR) will be performed
7217 * on virtual port (real virtual port, with VPI greater than 0).
7220 lpfc_cmpl_reg_new_vport(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
7222 struct lpfc_vport
*vport
= pmb
->vport
;
7223 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
7224 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
7225 MAILBOX_t
*mb
= &pmb
->u
.mb
;
7228 spin_lock_irq(shost
->host_lock
);
7229 vport
->fc_flag
&= ~FC_VPORT_NEEDS_REG_VPI
;
7230 spin_unlock_irq(shost
->host_lock
);
7232 if (mb
->mbxStatus
) {
7233 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
7234 "0915 Register VPI failed : Status: x%x"
7235 " upd bit: x%x \n", mb
->mbxStatus
,
7236 mb
->un
.varRegVpi
.upd
);
7237 if (phba
->sli_rev
== LPFC_SLI_REV4
&&
7238 mb
->un
.varRegVpi
.upd
)
7239 goto mbox_err_exit
;
7241 switch (mb
->mbxStatus
) {
7242 case 0x11: /* unsupported feature */
7243 case 0x9603: /* max_vpi exceeded */
7244 case 0x9602: /* Link event since CLEAR_LA */
7245 /* giving up on vport registration */
7246 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
7247 spin_lock_irq(shost
->host_lock
);
7248 vport
->fc_flag
&= ~(FC_FABRIC
| FC_PUBLIC_LOOP
);
7249 spin_unlock_irq(shost
->host_lock
);
7250 lpfc_can_disctmo(vport
);
7252 /* If reg_vpi fail with invalid VPI status, re-init VPI */
7254 spin_lock_irq(shost
->host_lock
);
7255 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
7256 spin_unlock_irq(shost
->host_lock
);
7257 lpfc_init_vpi(phba
, pmb
, vport
->vpi
);
7259 pmb
->mbox_cmpl
= lpfc_init_vpi_cmpl
;
7260 rc
= lpfc_sli_issue_mbox(phba
, pmb
,
7262 if (rc
== MBX_NOT_FINISHED
) {
7263 lpfc_printf_vlog(vport
,
7265 "2732 Failed to issue INIT_VPI"
7266 " mailbox command\n");
7273 /* Try to recover from this error */
7274 if (phba
->sli_rev
== LPFC_SLI_REV4
)
7275 lpfc_sli4_unreg_all_rpis(vport
);
7276 lpfc_mbx_unreg_vpi(vport
);
7277 spin_lock_irq(shost
->host_lock
);
7278 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
7279 spin_unlock_irq(shost
->host_lock
);
7280 if (vport
->port_type
== LPFC_PHYSICAL_PORT
7281 && !(vport
->fc_flag
& FC_LOGO_RCVD_DID_CHNG
))
7282 lpfc_issue_init_vfi(vport
);
7284 lpfc_initial_fdisc(vport
);
7288 spin_lock_irq(shost
->host_lock
);
7289 vport
->vpi_state
|= LPFC_VPI_REGISTERED
;
7290 spin_unlock_irq(shost
->host_lock
);
7291 if (vport
== phba
->pport
) {
7292 if (phba
->sli_rev
< LPFC_SLI_REV4
)
7293 lpfc_issue_fabric_reglogin(vport
);
7296 * If the physical port is instantiated using
7297 * FDISC, do not start vport discovery.
7299 if (vport
->port_state
!= LPFC_FDISC
)
7300 lpfc_start_fdiscs(phba
);
7301 lpfc_do_scr_ns_plogi(phba
, vport
);
7304 lpfc_do_scr_ns_plogi(phba
, vport
);
7307 /* Now, we decrement the ndlp reference count held for this
7312 mempool_free(pmb
, phba
->mbox_mem_pool
);
7317 * lpfc_register_new_vport - Register a new vport with a HBA
7318 * @phba: pointer to lpfc hba data structure.
7319 * @vport: pointer to a host virtual N_Port data structure.
7320 * @ndlp: pointer to a node-list data structure.
7322 * This routine registers the @vport as a new virtual port with a HBA.
7323 * It is done through a registering vpi mailbox command.
7326 lpfc_register_new_vport(struct lpfc_hba
*phba
, struct lpfc_vport
*vport
,
7327 struct lpfc_nodelist
*ndlp
)
7329 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
7332 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
7334 lpfc_reg_vpi(vport
, mbox
);
7335 mbox
->vport
= vport
;
7336 mbox
->context2
= lpfc_nlp_get(ndlp
);
7337 mbox
->mbox_cmpl
= lpfc_cmpl_reg_new_vport
;
7338 if (lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
)
7339 == MBX_NOT_FINISHED
) {
7340 /* mailbox command not success, decrement ndlp
7341 * reference count for this command
7344 mempool_free(mbox
, phba
->mbox_mem_pool
);
7346 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
7347 "0253 Register VPI: Can't send mbox\n");
7351 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
7352 "0254 Register VPI: no memory\n");
7358 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
7359 spin_lock_irq(shost
->host_lock
);
7360 vport
->fc_flag
&= ~FC_VPORT_NEEDS_REG_VPI
;
7361 spin_unlock_irq(shost
->host_lock
);
7366 * lpfc_cancel_all_vport_retry_delay_timer - Cancel all vport retry delay timer
7367 * @phba: pointer to lpfc hba data structure.
7369 * This routine cancels the retry delay timers to all the vports.
7372 lpfc_cancel_all_vport_retry_delay_timer(struct lpfc_hba
*phba
)
7374 struct lpfc_vport
**vports
;
7375 struct lpfc_nodelist
*ndlp
;
7376 uint32_t link_state
;
7379 /* Treat this failure as linkdown for all vports */
7380 link_state
= phba
->link_state
;
7381 lpfc_linkdown(phba
);
7382 phba
->link_state
= link_state
;
7384 vports
= lpfc_create_vport_work_array(phba
);
7387 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
7388 ndlp
= lpfc_findnode_did(vports
[i
], Fabric_DID
);
7390 lpfc_cancel_retry_delay_tmo(vports
[i
], ndlp
);
7391 lpfc_els_flush_cmd(vports
[i
]);
7393 lpfc_destroy_vport_work_array(phba
, vports
);
7398 * lpfc_retry_pport_discovery - Start timer to retry FLOGI.
7399 * @phba: pointer to lpfc hba data structure.
7401 * This routine abort all pending discovery commands and
7402 * start a timer to retry FLOGI for the physical port
7406 lpfc_retry_pport_discovery(struct lpfc_hba
*phba
)
7408 struct lpfc_nodelist
*ndlp
;
7409 struct Scsi_Host
*shost
;
7411 /* Cancel the all vports retry delay retry timers */
7412 lpfc_cancel_all_vport_retry_delay_timer(phba
);
7414 /* If fabric require FLOGI, then re-instantiate physical login */
7415 ndlp
= lpfc_findnode_did(phba
->pport
, Fabric_DID
);
7419 shost
= lpfc_shost_from_vport(phba
->pport
);
7420 mod_timer(&ndlp
->nlp_delayfunc
, jiffies
+ msecs_to_jiffies(1000));
7421 spin_lock_irq(shost
->host_lock
);
7422 ndlp
->nlp_flag
|= NLP_DELAY_TMO
;
7423 spin_unlock_irq(shost
->host_lock
);
7424 ndlp
->nlp_last_elscmd
= ELS_CMD_FLOGI
;
7425 phba
->pport
->port_state
= LPFC_FLOGI
;
7430 * lpfc_fabric_login_reqd - Check if FLOGI required.
7431 * @phba: pointer to lpfc hba data structure.
7432 * @cmdiocb: pointer to FDISC command iocb.
7433 * @rspiocb: pointer to FDISC response iocb.
7435 * This routine checks if a FLOGI is reguired for FDISC
7439 lpfc_fabric_login_reqd(struct lpfc_hba
*phba
,
7440 struct lpfc_iocbq
*cmdiocb
,
7441 struct lpfc_iocbq
*rspiocb
)
7444 if ((rspiocb
->iocb
.ulpStatus
!= IOSTAT_FABRIC_RJT
) ||
7445 (rspiocb
->iocb
.un
.ulpWord
[4] != RJT_LOGIN_REQUIRED
))
7452 * lpfc_cmpl_els_fdisc - Completion function for fdisc iocb command
7453 * @phba: pointer to lpfc hba data structure.
7454 * @cmdiocb: pointer to lpfc command iocb data structure.
7455 * @rspiocb: pointer to lpfc response iocb data structure.
7457 * This routine is the completion callback function to a Fabric Discover
7458 * (FDISC) ELS command. Since all the FDISC ELS commands are issued
7459 * single threaded, each FDISC completion callback function will reset
7460 * the discovery timer for all vports such that the timers will not get
7461 * unnecessary timeout. The function checks the FDISC IOCB status. If error
7462 * detected, the vport will be set to FC_VPORT_FAILED state. Otherwise,the
7463 * vport will set to FC_VPORT_ACTIVE state. It then checks whether the DID
7464 * assigned to the vport has been changed with the completion of the FDISC
7465 * command. If so, both RPI (Remote Port Index) and VPI (Virtual Port Index)
7466 * are unregistered from the HBA, and then the lpfc_register_new_vport()
7467 * routine is invoked to register new vport with the HBA. Otherwise, the
7468 * lpfc_do_scr_ns_plogi() routine is invoked to issue a PLOGI to the Name
7469 * Server for State Change Request (SCR).
7472 lpfc_cmpl_els_fdisc(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
7473 struct lpfc_iocbq
*rspiocb
)
7475 struct lpfc_vport
*vport
= cmdiocb
->vport
;
7476 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
7477 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) cmdiocb
->context1
;
7478 struct lpfc_nodelist
*np
;
7479 struct lpfc_nodelist
*next_np
;
7480 IOCB_t
*irsp
= &rspiocb
->iocb
;
7481 struct lpfc_iocbq
*piocb
;
7482 struct lpfc_dmabuf
*pcmd
= cmdiocb
->context2
, *prsp
;
7483 struct serv_parm
*sp
;
7484 uint8_t fabric_param_changed
;
7486 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
7487 "0123 FDISC completes. x%x/x%x prevDID: x%x\n",
7488 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
7490 /* Since all FDISCs are being single threaded, we
7491 * must reset the discovery timer for ALL vports
7492 * waiting to send FDISC when one completes.
7494 list_for_each_entry(piocb
, &phba
->fabric_iocb_list
, list
) {
7495 lpfc_set_disctmo(piocb
->vport
);
7498 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
7499 "FDISC cmpl: status:x%x/x%x prevdid:x%x",
7500 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4], vport
->fc_prevDID
);
7502 if (irsp
->ulpStatus
) {
7504 if (lpfc_fabric_login_reqd(phba
, cmdiocb
, rspiocb
)) {
7505 lpfc_retry_pport_discovery(phba
);
7509 /* Check for retry */
7510 if (lpfc_els_retry(phba
, cmdiocb
, rspiocb
))
7513 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
7514 "0126 FDISC failed. (x%x/x%x)\n",
7515 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4]);
7518 spin_lock_irq(shost
->host_lock
);
7519 vport
->fc_flag
&= ~FC_VPORT_CVL_RCVD
;
7520 vport
->fc_flag
&= ~FC_VPORT_LOGO_RCVD
;
7521 vport
->fc_flag
|= FC_FABRIC
;
7522 if (vport
->phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
)
7523 vport
->fc_flag
|= FC_PUBLIC_LOOP
;
7524 spin_unlock_irq(shost
->host_lock
);
7526 vport
->fc_myDID
= irsp
->un
.ulpWord
[4] & Mask_DID
;
7527 lpfc_vport_set_state(vport
, FC_VPORT_ACTIVE
);
7528 prsp
= list_get_first(&pcmd
->list
, struct lpfc_dmabuf
, list
);
7531 sp
= prsp
->virt
+ sizeof(uint32_t);
7532 fabric_param_changed
= lpfc_check_clean_addr_bit(vport
, sp
);
7533 memcpy(&vport
->fabric_portname
, &sp
->portName
,
7534 sizeof(struct lpfc_name
));
7535 memcpy(&vport
->fabric_nodename
, &sp
->nodeName
,
7536 sizeof(struct lpfc_name
));
7537 if (fabric_param_changed
&&
7538 !(vport
->fc_flag
& FC_VPORT_NEEDS_REG_VPI
)) {
7539 /* If our NportID changed, we need to ensure all
7540 * remaining NPORTs get unreg_login'ed so we can
7543 list_for_each_entry_safe(np
, next_np
,
7544 &vport
->fc_nodes
, nlp_listp
) {
7545 if (!NLP_CHK_NODE_ACT(ndlp
) ||
7546 (np
->nlp_state
!= NLP_STE_NPR_NODE
) ||
7547 !(np
->nlp_flag
& NLP_NPR_ADISC
))
7549 spin_lock_irq(shost
->host_lock
);
7550 np
->nlp_flag
&= ~NLP_NPR_ADISC
;
7551 spin_unlock_irq(shost
->host_lock
);
7552 lpfc_unreg_rpi(vport
, np
);
7554 lpfc_cleanup_pending_mbox(vport
);
7556 if (phba
->sli_rev
== LPFC_SLI_REV4
)
7557 lpfc_sli4_unreg_all_rpis(vport
);
7559 lpfc_mbx_unreg_vpi(vport
);
7560 spin_lock_irq(shost
->host_lock
);
7561 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
7562 if (phba
->sli_rev
== LPFC_SLI_REV4
)
7563 vport
->fc_flag
|= FC_VPORT_NEEDS_INIT_VPI
;
7565 vport
->fc_flag
|= FC_LOGO_RCVD_DID_CHNG
;
7566 spin_unlock_irq(shost
->host_lock
);
7567 } else if ((phba
->sli_rev
== LPFC_SLI_REV4
) &&
7568 !(vport
->fc_flag
& FC_VPORT_NEEDS_REG_VPI
)) {
7570 * Driver needs to re-reg VPI in order for f/w
7571 * to update the MAC address.
7573 lpfc_register_new_vport(phba
, vport
, ndlp
);
7577 if (vport
->fc_flag
& FC_VPORT_NEEDS_INIT_VPI
)
7578 lpfc_issue_init_vpi(vport
);
7579 else if (vport
->fc_flag
& FC_VPORT_NEEDS_REG_VPI
)
7580 lpfc_register_new_vport(phba
, vport
, ndlp
);
7582 lpfc_do_scr_ns_plogi(phba
, vport
);
7585 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
7586 /* Cancel discovery timer */
7587 lpfc_can_disctmo(vport
);
7590 lpfc_els_free_iocb(phba
, cmdiocb
);
7594 * lpfc_issue_els_fdisc - Issue a fdisc iocb command
7595 * @vport: pointer to a virtual N_Port data structure.
7596 * @ndlp: pointer to a node-list data structure.
7597 * @retry: number of retries to the command IOCB.
7599 * This routine prepares and issues a Fabric Discover (FDISC) IOCB to
7600 * a remote node (@ndlp) off a @vport. It uses the lpfc_issue_fabric_iocb()
7601 * routine to issue the IOCB, which makes sure only one outstanding fabric
7602 * IOCB will be sent off HBA at any given time.
7604 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
7605 * will be incremented by 1 for holding the ndlp and the reference to ndlp
7606 * will be stored into the context1 field of the IOCB for the completion
7607 * callback function to the FDISC ELS command.
7610 * 0 - Successfully issued fdisc iocb command
7611 * 1 - Failed to issue fdisc iocb command
7614 lpfc_issue_els_fdisc(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
7617 struct lpfc_hba
*phba
= vport
->phba
;
7619 struct lpfc_iocbq
*elsiocb
;
7620 struct serv_parm
*sp
;
7623 int did
= ndlp
->nlp_DID
;
7626 vport
->port_state
= LPFC_FDISC
;
7627 vport
->fc_myDID
= 0;
7628 cmdsize
= (sizeof(uint32_t) + sizeof(struct serv_parm
));
7629 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
, did
,
7632 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
7633 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
7634 "0255 Issue FDISC: no IOCB\n");
7638 icmd
= &elsiocb
->iocb
;
7639 icmd
->un
.elsreq64
.myID
= 0;
7640 icmd
->un
.elsreq64
.fl
= 1;
7643 * SLI3 ports require a different context type value than SLI4.
7644 * Catch SLI3 ports here and override the prep.
7646 if (phba
->sli_rev
== LPFC_SLI_REV3
) {
7651 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
7652 *((uint32_t *) (pcmd
)) = ELS_CMD_FDISC
;
7653 pcmd
+= sizeof(uint32_t); /* CSP Word 1 */
7654 memcpy(pcmd
, &vport
->phba
->pport
->fc_sparam
, sizeof(struct serv_parm
));
7655 sp
= (struct serv_parm
*) pcmd
;
7656 /* Setup CSPs accordingly for Fabric */
7657 sp
->cmn
.e_d_tov
= 0;
7658 sp
->cmn
.w2
.r_a_tov
= 0;
7659 sp
->cmn
.virtual_fabric_support
= 0;
7660 sp
->cls1
.classValid
= 0;
7661 sp
->cls2
.seqDelivery
= 1;
7662 sp
->cls3
.seqDelivery
= 1;
7664 pcmd
+= sizeof(uint32_t); /* CSP Word 2 */
7665 pcmd
+= sizeof(uint32_t); /* CSP Word 3 */
7666 pcmd
+= sizeof(uint32_t); /* CSP Word 4 */
7667 pcmd
+= sizeof(uint32_t); /* Port Name */
7668 memcpy(pcmd
, &vport
->fc_portname
, 8);
7669 pcmd
+= sizeof(uint32_t); /* Node Name */
7670 pcmd
+= sizeof(uint32_t); /* Node Name */
7671 memcpy(pcmd
, &vport
->fc_nodename
, 8);
7673 lpfc_set_disctmo(vport
);
7675 phba
->fc_stat
.elsXmitFDISC
++;
7676 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_fdisc
;
7678 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
7679 "Issue FDISC: did:x%x",
7682 rc
= lpfc_issue_fabric_iocb(phba
, elsiocb
);
7683 if (rc
== IOCB_ERROR
) {
7684 lpfc_els_free_iocb(phba
, elsiocb
);
7685 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
7686 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
7687 "0256 Issue FDISC: Cannot send IOCB\n");
7690 lpfc_vport_set_state(vport
, FC_VPORT_INITIALIZING
);
7695 * lpfc_cmpl_els_npiv_logo - Completion function with vport logo
7696 * @phba: pointer to lpfc hba data structure.
7697 * @cmdiocb: pointer to lpfc command iocb data structure.
7698 * @rspiocb: pointer to lpfc response iocb data structure.
7700 * This routine is the completion callback function to the issuing of a LOGO
7701 * ELS command off a vport. It frees the command IOCB and then decrement the
7702 * reference count held on ndlp for this completion function, indicating that
7703 * the reference to the ndlp is no long needed. Note that the
7704 * lpfc_els_free_iocb() routine decrements the ndlp reference held for this
7705 * callback function and an additional explicit ndlp reference decrementation
7706 * will trigger the actual release of the ndlp.
7709 lpfc_cmpl_els_npiv_logo(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
7710 struct lpfc_iocbq
*rspiocb
)
7712 struct lpfc_vport
*vport
= cmdiocb
->vport
;
7714 struct lpfc_nodelist
*ndlp
;
7715 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
7717 ndlp
= (struct lpfc_nodelist
*)cmdiocb
->context1
;
7718 irsp
= &rspiocb
->iocb
;
7719 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
7720 "LOGO npiv cmpl: status:x%x/x%x did:x%x",
7721 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4], irsp
->un
.rcvels
.remoteID
);
7723 lpfc_els_free_iocb(phba
, cmdiocb
);
7724 vport
->unreg_vpi_cmpl
= VPORT_ERROR
;
7726 /* Trigger the release of the ndlp after logo */
7729 /* NPIV LOGO completes to NPort <nlp_DID> */
7730 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
7731 "2928 NPIV LOGO completes to NPort x%x "
7732 "Data: x%x x%x x%x x%x\n",
7733 ndlp
->nlp_DID
, irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
7734 irsp
->ulpTimeout
, vport
->num_disc_nodes
);
7736 if (irsp
->ulpStatus
== IOSTAT_SUCCESS
) {
7737 spin_lock_irq(shost
->host_lock
);
7738 vport
->fc_flag
&= ~FC_FABRIC
;
7739 spin_unlock_irq(shost
->host_lock
);
7744 * lpfc_issue_els_npiv_logo - Issue a logo off a vport
7745 * @vport: pointer to a virtual N_Port data structure.
7746 * @ndlp: pointer to a node-list data structure.
7748 * This routine issues a LOGO ELS command to an @ndlp off a @vport.
7750 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
7751 * will be incremented by 1 for holding the ndlp and the reference to ndlp
7752 * will be stored into the context1 field of the IOCB for the completion
7753 * callback function to the LOGO ELS command.
7756 * 0 - Successfully issued logo off the @vport
7757 * 1 - Failed to issue logo off the @vport
7760 lpfc_issue_els_npiv_logo(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
7762 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
7763 struct lpfc_hba
*phba
= vport
->phba
;
7765 struct lpfc_iocbq
*elsiocb
;
7769 cmdsize
= 2 * sizeof(uint32_t) + sizeof(struct lpfc_name
);
7770 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, 0, ndlp
, ndlp
->nlp_DID
,
7775 icmd
= &elsiocb
->iocb
;
7776 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
7777 *((uint32_t *) (pcmd
)) = ELS_CMD_LOGO
;
7778 pcmd
+= sizeof(uint32_t);
7780 /* Fill in LOGO payload */
7781 *((uint32_t *) (pcmd
)) = be32_to_cpu(vport
->fc_myDID
);
7782 pcmd
+= sizeof(uint32_t);
7783 memcpy(pcmd
, &vport
->fc_portname
, sizeof(struct lpfc_name
));
7785 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
7786 "Issue LOGO npiv did:x%x flg:x%x",
7787 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
7789 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_npiv_logo
;
7790 spin_lock_irq(shost
->host_lock
);
7791 ndlp
->nlp_flag
|= NLP_LOGO_SND
;
7792 spin_unlock_irq(shost
->host_lock
);
7793 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) ==
7795 spin_lock_irq(shost
->host_lock
);
7796 ndlp
->nlp_flag
&= ~NLP_LOGO_SND
;
7797 spin_unlock_irq(shost
->host_lock
);
7798 lpfc_els_free_iocb(phba
, elsiocb
);
7805 * lpfc_fabric_block_timeout - Handler function to the fabric block timer
7806 * @ptr: holder for the timer function associated data.
7808 * This routine is invoked by the fabric iocb block timer after
7809 * timeout. It posts the fabric iocb block timeout event by setting the
7810 * WORKER_FABRIC_BLOCK_TMO bit to work port event bitmap and then invokes
7811 * lpfc_worker_wake_up() routine to wake up the worker thread. It is for
7812 * the worker thread to invoke the lpfc_unblock_fabric_iocbs() on the
7813 * posted event WORKER_FABRIC_BLOCK_TMO.
7816 lpfc_fabric_block_timeout(unsigned long ptr
)
7818 struct lpfc_hba
*phba
= (struct lpfc_hba
*) ptr
;
7819 unsigned long iflags
;
7820 uint32_t tmo_posted
;
7822 spin_lock_irqsave(&phba
->pport
->work_port_lock
, iflags
);
7823 tmo_posted
= phba
->pport
->work_port_events
& WORKER_FABRIC_BLOCK_TMO
;
7825 phba
->pport
->work_port_events
|= WORKER_FABRIC_BLOCK_TMO
;
7826 spin_unlock_irqrestore(&phba
->pport
->work_port_lock
, iflags
);
7829 lpfc_worker_wake_up(phba
);
7834 * lpfc_resume_fabric_iocbs - Issue a fabric iocb from driver internal list
7835 * @phba: pointer to lpfc hba data structure.
7837 * This routine issues one fabric iocb from the driver internal list to
7838 * the HBA. It first checks whether it's ready to issue one fabric iocb to
7839 * the HBA (whether there is no outstanding fabric iocb). If so, it shall
7840 * remove one pending fabric iocb from the driver internal list and invokes
7841 * lpfc_sli_issue_iocb() routine to send the fabric iocb to the HBA.
7844 lpfc_resume_fabric_iocbs(struct lpfc_hba
*phba
)
7846 struct lpfc_iocbq
*iocb
;
7847 unsigned long iflags
;
7853 spin_lock_irqsave(&phba
->hbalock
, iflags
);
7854 /* Post any pending iocb to the SLI layer */
7855 if (atomic_read(&phba
->fabric_iocb_count
) == 0) {
7856 list_remove_head(&phba
->fabric_iocb_list
, iocb
, typeof(*iocb
),
7859 /* Increment fabric iocb count to hold the position */
7860 atomic_inc(&phba
->fabric_iocb_count
);
7862 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
7864 iocb
->fabric_iocb_cmpl
= iocb
->iocb_cmpl
;
7865 iocb
->iocb_cmpl
= lpfc_cmpl_fabric_iocb
;
7866 iocb
->iocb_flag
|= LPFC_IO_FABRIC
;
7868 lpfc_debugfs_disc_trc(iocb
->vport
, LPFC_DISC_TRC_ELS_CMD
,
7869 "Fabric sched1: ste:x%x",
7870 iocb
->vport
->port_state
, 0, 0);
7872 ret
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, iocb
, 0);
7874 if (ret
== IOCB_ERROR
) {
7875 iocb
->iocb_cmpl
= iocb
->fabric_iocb_cmpl
;
7876 iocb
->fabric_iocb_cmpl
= NULL
;
7877 iocb
->iocb_flag
&= ~LPFC_IO_FABRIC
;
7879 cmd
->ulpStatus
= IOSTAT_LOCAL_REJECT
;
7880 cmd
->un
.ulpWord
[4] = IOERR_SLI_ABORTED
;
7881 iocb
->iocb_cmpl(phba
, iocb
, iocb
);
7883 atomic_dec(&phba
->fabric_iocb_count
);
7892 * lpfc_unblock_fabric_iocbs - Unblock issuing fabric iocb command
7893 * @phba: pointer to lpfc hba data structure.
7895 * This routine unblocks the issuing fabric iocb command. The function
7896 * will clear the fabric iocb block bit and then invoke the routine
7897 * lpfc_resume_fabric_iocbs() to issue one of the pending fabric iocb
7898 * from the driver internal fabric iocb list.
7901 lpfc_unblock_fabric_iocbs(struct lpfc_hba
*phba
)
7903 clear_bit(FABRIC_COMANDS_BLOCKED
, &phba
->bit_flags
);
7905 lpfc_resume_fabric_iocbs(phba
);
7910 * lpfc_block_fabric_iocbs - Block issuing fabric iocb command
7911 * @phba: pointer to lpfc hba data structure.
7913 * This routine blocks the issuing fabric iocb for a specified amount of
7914 * time (currently 100 ms). This is done by set the fabric iocb block bit
7915 * and set up a timeout timer for 100ms. When the block bit is set, no more
7916 * fabric iocb will be issued out of the HBA.
7919 lpfc_block_fabric_iocbs(struct lpfc_hba
*phba
)
7923 blocked
= test_and_set_bit(FABRIC_COMANDS_BLOCKED
, &phba
->bit_flags
);
7924 /* Start a timer to unblock fabric iocbs after 100ms */
7926 mod_timer(&phba
->fabric_block_timer
,
7927 jiffies
+ msecs_to_jiffies(100));
7933 * lpfc_cmpl_fabric_iocb - Completion callback function for fabric iocb
7934 * @phba: pointer to lpfc hba data structure.
7935 * @cmdiocb: pointer to lpfc command iocb data structure.
7936 * @rspiocb: pointer to lpfc response iocb data structure.
7938 * This routine is the callback function that is put to the fabric iocb's
7939 * callback function pointer (iocb->iocb_cmpl). The original iocb's callback
7940 * function pointer has been stored in iocb->fabric_iocb_cmpl. This callback
7941 * function first restores and invokes the original iocb's callback function
7942 * and then invokes the lpfc_resume_fabric_iocbs() routine to issue the next
7943 * fabric bound iocb from the driver internal fabric iocb list onto the wire.
7946 lpfc_cmpl_fabric_iocb(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
7947 struct lpfc_iocbq
*rspiocb
)
7951 if ((cmdiocb
->iocb_flag
& LPFC_IO_FABRIC
) != LPFC_IO_FABRIC
)
7954 switch (rspiocb
->iocb
.ulpStatus
) {
7955 case IOSTAT_NPORT_RJT
:
7956 case IOSTAT_FABRIC_RJT
:
7957 if (rspiocb
->iocb
.un
.ulpWord
[4] & RJT_UNAVAIL_TEMP
) {
7958 lpfc_block_fabric_iocbs(phba
);
7962 case IOSTAT_NPORT_BSY
:
7963 case IOSTAT_FABRIC_BSY
:
7964 lpfc_block_fabric_iocbs(phba
);
7968 stat
.un
.lsRjtError
=
7969 be32_to_cpu(rspiocb
->iocb
.un
.ulpWord
[4]);
7970 if ((stat
.un
.b
.lsRjtRsnCode
== LSRJT_UNABLE_TPC
) ||
7971 (stat
.un
.b
.lsRjtRsnCode
== LSRJT_LOGICAL_BSY
))
7972 lpfc_block_fabric_iocbs(phba
);
7976 if (atomic_read(&phba
->fabric_iocb_count
) == 0)
7979 cmdiocb
->iocb_cmpl
= cmdiocb
->fabric_iocb_cmpl
;
7980 cmdiocb
->fabric_iocb_cmpl
= NULL
;
7981 cmdiocb
->iocb_flag
&= ~LPFC_IO_FABRIC
;
7982 cmdiocb
->iocb_cmpl(phba
, cmdiocb
, rspiocb
);
7984 atomic_dec(&phba
->fabric_iocb_count
);
7985 if (!test_bit(FABRIC_COMANDS_BLOCKED
, &phba
->bit_flags
)) {
7986 /* Post any pending iocbs to HBA */
7987 lpfc_resume_fabric_iocbs(phba
);
7992 * lpfc_issue_fabric_iocb - Issue a fabric iocb command
7993 * @phba: pointer to lpfc hba data structure.
7994 * @iocb: pointer to lpfc command iocb data structure.
7996 * This routine is used as the top-level API for issuing a fabric iocb command
7997 * such as FLOGI and FDISC. To accommodate certain switch fabric, this driver
7998 * function makes sure that only one fabric bound iocb will be outstanding at
7999 * any given time. As such, this function will first check to see whether there
8000 * is already an outstanding fabric iocb on the wire. If so, it will put the
8001 * newly issued iocb onto the driver internal fabric iocb list, waiting to be
8002 * issued later. Otherwise, it will issue the iocb on the wire and update the
8003 * fabric iocb count it indicate that there is one fabric iocb on the wire.
8005 * Note, this implementation has a potential sending out fabric IOCBs out of
8006 * order. The problem is caused by the construction of the "ready" boolen does
8007 * not include the condition that the internal fabric IOCB list is empty. As
8008 * such, it is possible a fabric IOCB issued by this routine might be "jump"
8009 * ahead of the fabric IOCBs in the internal list.
8012 * IOCB_SUCCESS - either fabric iocb put on the list or issued successfully
8013 * IOCB_ERROR - failed to issue fabric iocb
8016 lpfc_issue_fabric_iocb(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocb
)
8018 unsigned long iflags
;
8022 if (atomic_read(&phba
->fabric_iocb_count
) > 1)
8025 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8026 ready
= atomic_read(&phba
->fabric_iocb_count
) == 0 &&
8027 !test_bit(FABRIC_COMANDS_BLOCKED
, &phba
->bit_flags
);
8030 /* Increment fabric iocb count to hold the position */
8031 atomic_inc(&phba
->fabric_iocb_count
);
8032 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8034 iocb
->fabric_iocb_cmpl
= iocb
->iocb_cmpl
;
8035 iocb
->iocb_cmpl
= lpfc_cmpl_fabric_iocb
;
8036 iocb
->iocb_flag
|= LPFC_IO_FABRIC
;
8038 lpfc_debugfs_disc_trc(iocb
->vport
, LPFC_DISC_TRC_ELS_CMD
,
8039 "Fabric sched2: ste:x%x",
8040 iocb
->vport
->port_state
, 0, 0);
8042 ret
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, iocb
, 0);
8044 if (ret
== IOCB_ERROR
) {
8045 iocb
->iocb_cmpl
= iocb
->fabric_iocb_cmpl
;
8046 iocb
->fabric_iocb_cmpl
= NULL
;
8047 iocb
->iocb_flag
&= ~LPFC_IO_FABRIC
;
8048 atomic_dec(&phba
->fabric_iocb_count
);
8051 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8052 list_add_tail(&iocb
->list
, &phba
->fabric_iocb_list
);
8053 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8060 * lpfc_fabric_abort_vport - Abort a vport's iocbs from driver fabric iocb list
8061 * @vport: pointer to a virtual N_Port data structure.
8063 * This routine aborts all the IOCBs associated with a @vport from the
8064 * driver internal fabric IOCB list. The list contains fabric IOCBs to be
8065 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB
8066 * list, removes each IOCB associated with the @vport off the list, set the
8067 * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function
8068 * associated with the IOCB.
8070 static void lpfc_fabric_abort_vport(struct lpfc_vport
*vport
)
8072 LIST_HEAD(completions
);
8073 struct lpfc_hba
*phba
= vport
->phba
;
8074 struct lpfc_iocbq
*tmp_iocb
, *piocb
;
8076 spin_lock_irq(&phba
->hbalock
);
8077 list_for_each_entry_safe(piocb
, tmp_iocb
, &phba
->fabric_iocb_list
,
8080 if (piocb
->vport
!= vport
)
8083 list_move_tail(&piocb
->list
, &completions
);
8085 spin_unlock_irq(&phba
->hbalock
);
8087 /* Cancel all the IOCBs from the completions list */
8088 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
8093 * lpfc_fabric_abort_nport - Abort a ndlp's iocbs from driver fabric iocb list
8094 * @ndlp: pointer to a node-list data structure.
8096 * This routine aborts all the IOCBs associated with an @ndlp from the
8097 * driver internal fabric IOCB list. The list contains fabric IOCBs to be
8098 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB
8099 * list, removes each IOCB associated with the @ndlp off the list, set the
8100 * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function
8101 * associated with the IOCB.
8103 void lpfc_fabric_abort_nport(struct lpfc_nodelist
*ndlp
)
8105 LIST_HEAD(completions
);
8106 struct lpfc_hba
*phba
= ndlp
->phba
;
8107 struct lpfc_iocbq
*tmp_iocb
, *piocb
;
8108 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
8110 spin_lock_irq(&phba
->hbalock
);
8111 list_for_each_entry_safe(piocb
, tmp_iocb
, &phba
->fabric_iocb_list
,
8113 if ((lpfc_check_sli_ndlp(phba
, pring
, piocb
, ndlp
))) {
8115 list_move_tail(&piocb
->list
, &completions
);
8118 spin_unlock_irq(&phba
->hbalock
);
8120 /* Cancel all the IOCBs from the completions list */
8121 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
8126 * lpfc_fabric_abort_hba - Abort all iocbs on driver fabric iocb list
8127 * @phba: pointer to lpfc hba data structure.
8129 * This routine aborts all the IOCBs currently on the driver internal
8130 * fabric IOCB list. The list contains fabric IOCBs to be issued to the ELS
8131 * IOCB ring. This function takes the entire IOCB list off the fabric IOCB
8132 * list, removes IOCBs off the list, set the status feild to
8133 * IOSTAT_LOCAL_REJECT, and invokes the callback function associated with
8136 void lpfc_fabric_abort_hba(struct lpfc_hba
*phba
)
8138 LIST_HEAD(completions
);
8140 spin_lock_irq(&phba
->hbalock
);
8141 list_splice_init(&phba
->fabric_iocb_list
, &completions
);
8142 spin_unlock_irq(&phba
->hbalock
);
8144 /* Cancel all the IOCBs from the completions list */
8145 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
8150 * lpfc_sli4_vport_delete_els_xri_aborted -Remove all ndlp references for vport
8151 * @vport: pointer to lpfc vport data structure.
8153 * This routine is invoked by the vport cleanup for deletions and the cleanup
8154 * for an ndlp on removal.
8157 lpfc_sli4_vport_delete_els_xri_aborted(struct lpfc_vport
*vport
)
8159 struct lpfc_hba
*phba
= vport
->phba
;
8160 struct lpfc_sglq
*sglq_entry
= NULL
, *sglq_next
= NULL
;
8161 unsigned long iflag
= 0;
8163 spin_lock_irqsave(&phba
->hbalock
, iflag
);
8164 spin_lock(&phba
->sli4_hba
.abts_sgl_list_lock
);
8165 list_for_each_entry_safe(sglq_entry
, sglq_next
,
8166 &phba
->sli4_hba
.lpfc_abts_els_sgl_list
, list
) {
8167 if (sglq_entry
->ndlp
&& sglq_entry
->ndlp
->vport
== vport
)
8168 sglq_entry
->ndlp
= NULL
;
8170 spin_unlock(&phba
->sli4_hba
.abts_sgl_list_lock
);
8171 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8176 * lpfc_sli4_els_xri_aborted - Slow-path process of els xri abort
8177 * @phba: pointer to lpfc hba data structure.
8178 * @axri: pointer to the els xri abort wcqe structure.
8180 * This routine is invoked by the worker thread to process a SLI4 slow-path
8184 lpfc_sli4_els_xri_aborted(struct lpfc_hba
*phba
,
8185 struct sli4_wcqe_xri_aborted
*axri
)
8187 uint16_t xri
= bf_get(lpfc_wcqe_xa_xri
, axri
);
8188 uint16_t rxid
= bf_get(lpfc_wcqe_xa_remote_xid
, axri
);
8191 struct lpfc_sglq
*sglq_entry
= NULL
, *sglq_next
= NULL
;
8192 unsigned long iflag
= 0;
8193 struct lpfc_nodelist
*ndlp
;
8194 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
8196 spin_lock_irqsave(&phba
->hbalock
, iflag
);
8197 spin_lock(&phba
->sli4_hba
.abts_sgl_list_lock
);
8198 list_for_each_entry_safe(sglq_entry
, sglq_next
,
8199 &phba
->sli4_hba
.lpfc_abts_els_sgl_list
, list
) {
8200 if (sglq_entry
->sli4_xritag
== xri
) {
8201 list_del(&sglq_entry
->list
);
8202 ndlp
= sglq_entry
->ndlp
;
8203 sglq_entry
->ndlp
= NULL
;
8204 spin_lock(&pring
->ring_lock
);
8205 list_add_tail(&sglq_entry
->list
,
8206 &phba
->sli4_hba
.lpfc_sgl_list
);
8207 sglq_entry
->state
= SGL_FREED
;
8208 spin_unlock(&pring
->ring_lock
);
8209 spin_unlock(&phba
->sli4_hba
.abts_sgl_list_lock
);
8210 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8211 lpfc_set_rrq_active(phba
, ndlp
,
8212 sglq_entry
->sli4_lxritag
,
8215 /* Check if TXQ queue needs to be serviced */
8216 if (!(list_empty(&pring
->txq
)))
8217 lpfc_worker_wake_up(phba
);
8221 spin_unlock(&phba
->sli4_hba
.abts_sgl_list_lock
);
8222 lxri
= lpfc_sli4_xri_inrange(phba
, xri
);
8223 if (lxri
== NO_XRI
) {
8224 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8227 spin_lock(&pring
->ring_lock
);
8228 sglq_entry
= __lpfc_get_active_sglq(phba
, lxri
);
8229 if (!sglq_entry
|| (sglq_entry
->sli4_xritag
!= xri
)) {
8230 spin_unlock(&pring
->ring_lock
);
8231 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8234 sglq_entry
->state
= SGL_XRI_ABORTED
;
8235 spin_unlock(&pring
->ring_lock
);
8236 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8240 /* lpfc_sli_abts_recover_port - Recover a port that failed a BLS_ABORT req.
8241 * @vport: pointer to virtual port object.
8242 * @ndlp: nodelist pointer for the impacted node.
8244 * The driver calls this routine in response to an SLI4 XRI ABORT CQE
8245 * or an SLI3 ASYNC_STATUS_CN event from the port. For either event,
8246 * the driver is required to send a LOGO to the remote node before it
8247 * attempts to recover its login to the remote node.
8250 lpfc_sli_abts_recover_port(struct lpfc_vport
*vport
,
8251 struct lpfc_nodelist
*ndlp
)
8253 struct Scsi_Host
*shost
;
8254 struct lpfc_hba
*phba
;
8255 unsigned long flags
= 0;
8257 shost
= lpfc_shost_from_vport(vport
);
8259 if (ndlp
->nlp_state
!= NLP_STE_MAPPED_NODE
) {
8260 lpfc_printf_log(phba
, KERN_INFO
,
8261 LOG_SLI
, "3093 No rport recovery needed. "
8262 "rport in state 0x%x\n", ndlp
->nlp_state
);
8265 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
8266 "3094 Start rport recovery on shost id 0x%x "
8267 "fc_id 0x%06x vpi 0x%x rpi 0x%x state 0x%x "
8269 shost
->host_no
, ndlp
->nlp_DID
,
8270 vport
->vpi
, ndlp
->nlp_rpi
, ndlp
->nlp_state
,
8273 * The rport is not responding. Remove the FCP-2 flag to prevent
8274 * an ADISC in the follow-up recovery code.
8276 spin_lock_irqsave(shost
->host_lock
, flags
);
8277 ndlp
->nlp_fcp_info
&= ~NLP_FCP_2_DEVICE
;
8278 spin_unlock_irqrestore(shost
->host_lock
, flags
);
8279 lpfc_issue_els_logo(vport
, ndlp
, 0);
8280 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_LOGO_ISSUE
);