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 if (NLP_CHK_NODE_ACT(ndlp
)) {
3705 /* This is the end of the default RPI cleanup logic for
3706 * this ndlp. If no other discovery threads are using
3707 * this ndlp, free all resources associated with it.
3709 lpfc_nlp_not_used(ndlp
);
3711 lpfc_drop_node(ndlp
->vport
, ndlp
);
3719 * lpfc_cmpl_els_rsp - Completion callback function for els response iocb cmd
3720 * @phba: pointer to lpfc hba data structure.
3721 * @cmdiocb: pointer to lpfc command iocb data structure.
3722 * @rspiocb: pointer to lpfc response iocb data structure.
3724 * This routine is the completion callback function for ELS Response IOCB
3725 * command. In normal case, this callback function just properly sets the
3726 * nlp_flag bitmap in the ndlp data structure, if the mbox command reference
3727 * field in the command IOCB is not NULL, the referred mailbox command will
3728 * be send out, and then invokes the lpfc_els_free_iocb() routine to release
3729 * the IOCB. Under error conditions, such as when a LS_RJT is returned or a
3730 * link down event occurred during the discovery, the lpfc_nlp_not_used()
3731 * routine shall be invoked trying to release the ndlp if no other threads
3732 * are currently referring it.
3735 lpfc_cmpl_els_rsp(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
3736 struct lpfc_iocbq
*rspiocb
)
3738 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) cmdiocb
->context1
;
3739 struct lpfc_vport
*vport
= ndlp
? ndlp
->vport
: NULL
;
3740 struct Scsi_Host
*shost
= vport
? lpfc_shost_from_vport(vport
) : NULL
;
3743 LPFC_MBOXQ_t
*mbox
= NULL
;
3744 struct lpfc_dmabuf
*mp
= NULL
;
3745 uint32_t ls_rjt
= 0;
3747 irsp
= &rspiocb
->iocb
;
3749 if (cmdiocb
->context_un
.mbox
)
3750 mbox
= cmdiocb
->context_un
.mbox
;
3752 /* First determine if this is a LS_RJT cmpl. Note, this callback
3753 * function can have cmdiocb->contest1 (ndlp) field set to NULL.
3755 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) cmdiocb
->context2
)->virt
);
3756 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
) &&
3757 (*((uint32_t *) (pcmd
)) == ELS_CMD_LS_RJT
)) {
3758 /* A LS_RJT associated with Default RPI cleanup has its own
3759 * separate code path.
3761 if (!(ndlp
->nlp_flag
& NLP_RM_DFLT_RPI
))
3765 /* Check to see if link went down during discovery */
3766 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
) || lpfc_els_chk_latt(vport
)) {
3768 mp
= (struct lpfc_dmabuf
*) mbox
->context1
;
3770 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3773 mempool_free(mbox
, phba
->mbox_mem_pool
);
3775 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
) &&
3776 (ndlp
->nlp_flag
& NLP_RM_DFLT_RPI
))
3777 if (lpfc_nlp_not_used(ndlp
)) {
3779 /* Indicate the node has already released,
3780 * should not reference to it from within
3781 * the routine lpfc_els_free_iocb.
3783 cmdiocb
->context1
= NULL
;
3788 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
3789 "ELS rsp cmpl: status:x%x/x%x did:x%x",
3790 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
3791 cmdiocb
->iocb
.un
.elsreq64
.remoteID
);
3792 /* ELS response tag <ulpIoTag> completes */
3793 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
3794 "0110 ELS response tag x%x completes "
3795 "Data: x%x x%x x%x x%x x%x x%x x%x\n",
3796 cmdiocb
->iocb
.ulpIoTag
, rspiocb
->iocb
.ulpStatus
,
3797 rspiocb
->iocb
.un
.ulpWord
[4], rspiocb
->iocb
.ulpTimeout
,
3798 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
3801 if ((rspiocb
->iocb
.ulpStatus
== 0)
3802 && (ndlp
->nlp_flag
& NLP_ACC_REGLOGIN
)) {
3803 lpfc_unreg_rpi(vport
, ndlp
);
3804 /* Increment reference count to ndlp to hold the
3805 * reference to ndlp for the callback function.
3807 mbox
->context2
= lpfc_nlp_get(ndlp
);
3808 mbox
->vport
= vport
;
3809 if (ndlp
->nlp_flag
& NLP_RM_DFLT_RPI
) {
3810 mbox
->mbox_flag
|= LPFC_MBX_IMED_UNREG
;
3811 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_dflt_rpi
;
3814 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_reg_login
;
3815 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3816 lpfc_nlp_set_state(vport
, ndlp
,
3817 NLP_STE_REG_LOGIN_ISSUE
);
3819 if (lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
)
3820 != MBX_NOT_FINISHED
)
3823 /* Decrement the ndlp reference count we
3824 * set for this failed mailbox command.
3828 /* ELS rsp: Cannot issue reg_login for <NPortid> */
3829 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
3830 "0138 ELS rsp: Cannot issue reg_login for x%x "
3831 "Data: x%x x%x x%x\n",
3832 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
3835 if (lpfc_nlp_not_used(ndlp
)) {
3837 /* Indicate node has already been released,
3838 * should not reference to it from within
3839 * the routine lpfc_els_free_iocb.
3841 cmdiocb
->context1
= NULL
;
3844 /* Do not drop node for lpfc_els_abort'ed ELS cmds */
3845 if (!lpfc_error_lost_link(irsp
) &&
3846 ndlp
->nlp_flag
& NLP_ACC_REGLOGIN
) {
3847 if (lpfc_nlp_not_used(ndlp
)) {
3849 /* Indicate node has already been
3850 * released, should not reference
3851 * to it from within the routine
3852 * lpfc_els_free_iocb.
3854 cmdiocb
->context1
= NULL
;
3858 mp
= (struct lpfc_dmabuf
*) mbox
->context1
;
3860 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3863 mempool_free(mbox
, phba
->mbox_mem_pool
);
3866 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
)) {
3867 spin_lock_irq(shost
->host_lock
);
3868 ndlp
->nlp_flag
&= ~(NLP_ACC_REGLOGIN
| NLP_RM_DFLT_RPI
);
3869 spin_unlock_irq(shost
->host_lock
);
3871 /* If the node is not being used by another discovery thread,
3872 * and we are sending a reject, we are done with it.
3873 * Release driver reference count here and free associated
3877 if (lpfc_nlp_not_used(ndlp
))
3878 /* Indicate node has already been released,
3879 * should not reference to it from within
3880 * the routine lpfc_els_free_iocb.
3882 cmdiocb
->context1
= NULL
;
3885 lpfc_els_free_iocb(phba
, cmdiocb
);
3890 * lpfc_els_rsp_acc - Prepare and issue an acc response iocb command
3891 * @vport: pointer to a host virtual N_Port data structure.
3892 * @flag: the els command code to be accepted.
3893 * @oldiocb: pointer to the original lpfc command iocb data structure.
3894 * @ndlp: pointer to a node-list data structure.
3895 * @mbox: pointer to the driver internal queue element for mailbox command.
3897 * This routine prepares and issues an Accept (ACC) response IOCB
3898 * command. It uses the @flag to properly set up the IOCB field for the
3899 * specific ACC response command to be issued and invokes the
3900 * lpfc_sli_issue_iocb() routine to send out ACC response IOCB. If a
3901 * @mbox pointer is passed in, it will be put into the context_un.mbox
3902 * field of the IOCB for the completion callback function to issue the
3903 * mailbox command to the HBA later when callback is invoked.
3905 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
3906 * will be incremented by 1 for holding the ndlp and the reference to ndlp
3907 * will be stored into the context1 field of the IOCB for the completion
3908 * callback function to the corresponding response ELS IOCB command.
3911 * 0 - Successfully issued acc response
3912 * 1 - Failed to issue acc response
3915 lpfc_els_rsp_acc(struct lpfc_vport
*vport
, uint32_t flag
,
3916 struct lpfc_iocbq
*oldiocb
, struct lpfc_nodelist
*ndlp
,
3919 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
3920 struct lpfc_hba
*phba
= vport
->phba
;
3923 struct lpfc_iocbq
*elsiocb
;
3924 struct lpfc_sli
*psli
;
3928 ELS_PKT
*els_pkt_ptr
;
3931 oldcmd
= &oldiocb
->iocb
;
3935 cmdsize
= sizeof(uint32_t);
3936 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
,
3937 ndlp
, ndlp
->nlp_DID
, ELS_CMD_ACC
);
3939 spin_lock_irq(shost
->host_lock
);
3940 ndlp
->nlp_flag
&= ~NLP_LOGO_ACC
;
3941 spin_unlock_irq(shost
->host_lock
);
3945 icmd
= &elsiocb
->iocb
;
3946 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
3947 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
3948 pcmd
= (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
3949 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
3950 pcmd
+= sizeof(uint32_t);
3952 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
3953 "Issue ACC: did:x%x flg:x%x",
3954 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
3957 cmdsize
= (sizeof(struct serv_parm
) + sizeof(uint32_t));
3958 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
,
3959 ndlp
, ndlp
->nlp_DID
, ELS_CMD_ACC
);
3963 icmd
= &elsiocb
->iocb
;
3964 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
3965 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
3966 pcmd
= (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
3969 elsiocb
->context_un
.mbox
= mbox
;
3971 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
3972 pcmd
+= sizeof(uint32_t);
3973 memcpy(pcmd
, &vport
->fc_sparam
, sizeof(struct serv_parm
));
3975 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
3976 "Issue ACC PLOGI: did:x%x flg:x%x",
3977 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
3980 cmdsize
= sizeof(uint32_t) + sizeof(PRLO
);
3981 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
,
3982 ndlp
, ndlp
->nlp_DID
, ELS_CMD_PRLO
);
3986 icmd
= &elsiocb
->iocb
;
3987 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
3988 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
3989 pcmd
= (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
3991 memcpy(pcmd
, ((struct lpfc_dmabuf
*) oldiocb
->context2
)->virt
,
3992 sizeof(uint32_t) + sizeof(PRLO
));
3993 *((uint32_t *) (pcmd
)) = ELS_CMD_PRLO_ACC
;
3994 els_pkt_ptr
= (ELS_PKT
*) pcmd
;
3995 els_pkt_ptr
->un
.prlo
.acceptRspCode
= PRLO_REQ_EXECUTED
;
3997 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
3998 "Issue ACC PRLO: did:x%x flg:x%x",
3999 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
4004 /* Xmit ELS ACC response tag <ulpIoTag> */
4005 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4006 "0128 Xmit ELS ACC response tag x%x, XRI: x%x, "
4007 "DID: x%x, nlp_flag: x%x nlp_state: x%x RPI: x%x "
4009 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
4010 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
4011 ndlp
->nlp_rpi
, vport
->fc_flag
);
4012 if (ndlp
->nlp_flag
& NLP_LOGO_ACC
) {
4013 spin_lock_irq(shost
->host_lock
);
4014 ndlp
->nlp_flag
&= ~NLP_LOGO_ACC
;
4015 spin_unlock_irq(shost
->host_lock
);
4016 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_logo_acc
;
4018 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
4021 phba
->fc_stat
.elsXmitACC
++;
4022 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
4023 if (rc
== IOCB_ERROR
) {
4024 lpfc_els_free_iocb(phba
, elsiocb
);
4031 * lpfc_els_rsp_reject - Propare and issue a rjt response iocb command
4032 * @vport: pointer to a virtual N_Port data structure.
4034 * @oldiocb: pointer to the original lpfc command iocb data structure.
4035 * @ndlp: pointer to a node-list data structure.
4036 * @mbox: pointer to the driver internal queue element for mailbox command.
4038 * This routine prepares and issue an Reject (RJT) response IOCB
4039 * command. If a @mbox pointer is passed in, it will be put into the
4040 * context_un.mbox field of the IOCB for the completion callback function
4041 * to issue to the HBA later.
4043 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4044 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4045 * will be stored into the context1 field of the IOCB for the completion
4046 * callback function to the reject response ELS IOCB command.
4049 * 0 - Successfully issued reject response
4050 * 1 - Failed to issue reject response
4053 lpfc_els_rsp_reject(struct lpfc_vport
*vport
, uint32_t rejectError
,
4054 struct lpfc_iocbq
*oldiocb
, struct lpfc_nodelist
*ndlp
,
4057 struct lpfc_hba
*phba
= vport
->phba
;
4060 struct lpfc_iocbq
*elsiocb
;
4061 struct lpfc_sli
*psli
;
4067 cmdsize
= 2 * sizeof(uint32_t);
4068 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
, ndlp
,
4069 ndlp
->nlp_DID
, ELS_CMD_LS_RJT
);
4073 icmd
= &elsiocb
->iocb
;
4074 oldcmd
= &oldiocb
->iocb
;
4075 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
4076 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
4077 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
4079 *((uint32_t *) (pcmd
)) = ELS_CMD_LS_RJT
;
4080 pcmd
+= sizeof(uint32_t);
4081 *((uint32_t *) (pcmd
)) = rejectError
;
4084 elsiocb
->context_un
.mbox
= mbox
;
4086 /* Xmit ELS RJT <err> response tag <ulpIoTag> */
4087 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4088 "0129 Xmit ELS RJT x%x response tag x%x "
4089 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
4091 rejectError
, elsiocb
->iotag
,
4092 elsiocb
->iocb
.ulpContext
, ndlp
->nlp_DID
,
4093 ndlp
->nlp_flag
, ndlp
->nlp_state
, ndlp
->nlp_rpi
);
4094 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
4095 "Issue LS_RJT: did:x%x flg:x%x err:x%x",
4096 ndlp
->nlp_DID
, ndlp
->nlp_flag
, rejectError
);
4098 phba
->fc_stat
.elsXmitLSRJT
++;
4099 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
4100 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
4102 if (rc
== IOCB_ERROR
) {
4103 lpfc_els_free_iocb(phba
, elsiocb
);
4110 * lpfc_els_rsp_adisc_acc - Prepare and issue acc response to adisc iocb cmd
4111 * @vport: pointer to a virtual N_Port data structure.
4112 * @oldiocb: pointer to the original lpfc command iocb data structure.
4113 * @ndlp: pointer to a node-list data structure.
4115 * This routine prepares and issues an Accept (ACC) response to Address
4116 * Discover (ADISC) ELS command. It simply prepares the payload of the IOCB
4117 * and invokes the lpfc_sli_issue_iocb() routine to send out the command.
4119 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4120 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4121 * will be stored into the context1 field of the IOCB for the completion
4122 * callback function to the ADISC Accept response ELS IOCB command.
4125 * 0 - Successfully issued acc adisc response
4126 * 1 - Failed to issue adisc acc response
4129 lpfc_els_rsp_adisc_acc(struct lpfc_vport
*vport
, struct lpfc_iocbq
*oldiocb
,
4130 struct lpfc_nodelist
*ndlp
)
4132 struct lpfc_hba
*phba
= vport
->phba
;
4134 IOCB_t
*icmd
, *oldcmd
;
4135 struct lpfc_iocbq
*elsiocb
;
4140 cmdsize
= sizeof(uint32_t) + sizeof(ADISC
);
4141 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
, ndlp
,
4142 ndlp
->nlp_DID
, ELS_CMD_ACC
);
4146 icmd
= &elsiocb
->iocb
;
4147 oldcmd
= &oldiocb
->iocb
;
4148 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
4149 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
4151 /* Xmit ADISC ACC response tag <ulpIoTag> */
4152 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4153 "0130 Xmit ADISC ACC response iotag x%x xri: "
4154 "x%x, did x%x, nlp_flag x%x, nlp_state x%x rpi x%x\n",
4155 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
4156 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
4158 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
4160 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
4161 pcmd
+= sizeof(uint32_t);
4163 ap
= (ADISC
*) (pcmd
);
4164 ap
->hardAL_PA
= phba
->fc_pref_ALPA
;
4165 memcpy(&ap
->portName
, &vport
->fc_portname
, sizeof(struct lpfc_name
));
4166 memcpy(&ap
->nodeName
, &vport
->fc_nodename
, sizeof(struct lpfc_name
));
4167 ap
->DID
= be32_to_cpu(vport
->fc_myDID
);
4169 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
4170 "Issue ACC ADISC: did:x%x flg:x%x",
4171 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
4173 phba
->fc_stat
.elsXmitACC
++;
4174 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
4175 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
4176 if (rc
== IOCB_ERROR
) {
4177 lpfc_els_free_iocb(phba
, elsiocb
);
4184 * lpfc_els_rsp_prli_acc - Prepare and issue acc response to prli iocb cmd
4185 * @vport: pointer to a virtual N_Port data structure.
4186 * @oldiocb: pointer to the original lpfc command iocb data structure.
4187 * @ndlp: pointer to a node-list data structure.
4189 * This routine prepares and issues an Accept (ACC) response to Process
4190 * Login (PRLI) ELS command. It simply prepares the payload of the IOCB
4191 * and invokes the lpfc_sli_issue_iocb() routine to send out the command.
4193 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4194 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4195 * will be stored into the context1 field of the IOCB for the completion
4196 * callback function to the PRLI Accept response ELS IOCB command.
4199 * 0 - Successfully issued acc prli response
4200 * 1 - Failed to issue acc prli response
4203 lpfc_els_rsp_prli_acc(struct lpfc_vport
*vport
, struct lpfc_iocbq
*oldiocb
,
4204 struct lpfc_nodelist
*ndlp
)
4206 struct lpfc_hba
*phba
= vport
->phba
;
4211 struct lpfc_iocbq
*elsiocb
;
4212 struct lpfc_sli
*psli
;
4219 cmdsize
= sizeof(uint32_t) + sizeof(PRLI
);
4220 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
, ndlp
,
4221 ndlp
->nlp_DID
, (ELS_CMD_ACC
| (ELS_CMD_PRLI
& ~ELS_RSP_MASK
)));
4225 icmd
= &elsiocb
->iocb
;
4226 oldcmd
= &oldiocb
->iocb
;
4227 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
4228 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
4230 /* Xmit PRLI ACC response tag <ulpIoTag> */
4231 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4232 "0131 Xmit PRLI ACC response tag x%x xri x%x, "
4233 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
4234 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
4235 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
4237 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
4239 *((uint32_t *) (pcmd
)) = (ELS_CMD_ACC
| (ELS_CMD_PRLI
& ~ELS_RSP_MASK
));
4240 pcmd
+= sizeof(uint32_t);
4242 /* For PRLI, remainder of payload is PRLI parameter page */
4243 memset(pcmd
, 0, sizeof(PRLI
));
4245 npr
= (PRLI
*) pcmd
;
4248 * If the remote port is a target and our firmware version is 3.20 or
4249 * later, set the following bits for FC-TAPE support.
4251 if ((ndlp
->nlp_type
& NLP_FCP_TARGET
) &&
4252 (vpd
->rev
.feaLevelHigh
>= 0x02)) {
4253 npr
->ConfmComplAllowed
= 1;
4255 npr
->TaskRetryIdReq
= 1;
4258 npr
->acceptRspCode
= PRLI_REQ_EXECUTED
;
4259 npr
->estabImagePair
= 1;
4260 npr
->readXferRdyDis
= 1;
4261 npr
->ConfmComplAllowed
= 1;
4263 npr
->prliType
= PRLI_FCP_TYPE
;
4264 npr
->initiatorFunc
= 1;
4266 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
4267 "Issue ACC PRLI: did:x%x flg:x%x",
4268 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
4270 phba
->fc_stat
.elsXmitACC
++;
4271 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
4273 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
4274 if (rc
== IOCB_ERROR
) {
4275 lpfc_els_free_iocb(phba
, elsiocb
);
4282 * lpfc_els_rsp_rnid_acc - Issue rnid acc response iocb command
4283 * @vport: pointer to a virtual N_Port data structure.
4284 * @format: rnid command format.
4285 * @oldiocb: pointer to the original lpfc command iocb data structure.
4286 * @ndlp: pointer to a node-list data structure.
4288 * This routine issues a Request Node Identification Data (RNID) Accept
4289 * (ACC) response. It constructs the RNID ACC response command according to
4290 * the proper @format and then calls the lpfc_sli_issue_iocb() routine to
4291 * issue the response. Note that this command does not need to hold the ndlp
4292 * reference count for the callback. So, the ndlp reference count taken by
4293 * the lpfc_prep_els_iocb() routine is put back and the context1 field of
4294 * IOCB is set to NULL to indicate to the lpfc_els_free_iocb() routine that
4295 * there is no ndlp reference available.
4297 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4298 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4299 * will be stored into the context1 field of the IOCB for the completion
4300 * callback function. However, for the RNID Accept Response ELS command,
4301 * this is undone later by this routine after the IOCB is allocated.
4304 * 0 - Successfully issued acc rnid response
4305 * 1 - Failed to issue acc rnid response
4308 lpfc_els_rsp_rnid_acc(struct lpfc_vport
*vport
, uint8_t format
,
4309 struct lpfc_iocbq
*oldiocb
, struct lpfc_nodelist
*ndlp
)
4311 struct lpfc_hba
*phba
= vport
->phba
;
4313 IOCB_t
*icmd
, *oldcmd
;
4314 struct lpfc_iocbq
*elsiocb
;
4315 struct lpfc_sli
*psli
;
4321 cmdsize
= sizeof(uint32_t) + sizeof(uint32_t)
4322 + (2 * sizeof(struct lpfc_name
));
4324 cmdsize
+= sizeof(RNID_TOP_DISC
);
4326 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
, ndlp
,
4327 ndlp
->nlp_DID
, ELS_CMD_ACC
);
4331 icmd
= &elsiocb
->iocb
;
4332 oldcmd
= &oldiocb
->iocb
;
4333 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
4334 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
4336 /* Xmit RNID ACC response tag <ulpIoTag> */
4337 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4338 "0132 Xmit RNID ACC response tag x%x xri x%x\n",
4339 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
);
4340 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
4341 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
4342 pcmd
+= sizeof(uint32_t);
4344 memset(pcmd
, 0, sizeof(RNID
));
4345 rn
= (RNID
*) (pcmd
);
4346 rn
->Format
= format
;
4347 rn
->CommonLen
= (2 * sizeof(struct lpfc_name
));
4348 memcpy(&rn
->portName
, &vport
->fc_portname
, sizeof(struct lpfc_name
));
4349 memcpy(&rn
->nodeName
, &vport
->fc_nodename
, sizeof(struct lpfc_name
));
4352 rn
->SpecificLen
= 0;
4354 case RNID_TOPOLOGY_DISC
:
4355 rn
->SpecificLen
= sizeof(RNID_TOP_DISC
);
4356 memcpy(&rn
->un
.topologyDisc
.portName
,
4357 &vport
->fc_portname
, sizeof(struct lpfc_name
));
4358 rn
->un
.topologyDisc
.unitType
= RNID_HBA
;
4359 rn
->un
.topologyDisc
.physPort
= 0;
4360 rn
->un
.topologyDisc
.attachedNodes
= 0;
4364 rn
->SpecificLen
= 0;
4368 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
4369 "Issue ACC RNID: did:x%x flg:x%x",
4370 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
4372 phba
->fc_stat
.elsXmitACC
++;
4373 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
4375 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
4376 if (rc
== IOCB_ERROR
) {
4377 lpfc_els_free_iocb(phba
, elsiocb
);
4384 * lpfc_els_clear_rrq - Clear the rq that this rrq describes.
4385 * @vport: pointer to a virtual N_Port data structure.
4386 * @iocb: pointer to the lpfc command iocb data structure.
4387 * @ndlp: pointer to a node-list data structure.
4392 lpfc_els_clear_rrq(struct lpfc_vport
*vport
,
4393 struct lpfc_iocbq
*iocb
, struct lpfc_nodelist
*ndlp
)
4395 struct lpfc_hba
*phba
= vport
->phba
;
4400 struct lpfc_node_rrq
*prrq
;
4403 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) iocb
->context2
)->virt
);
4404 pcmd
+= sizeof(uint32_t);
4405 rrq
= (struct RRQ
*)pcmd
;
4406 rrq
->rrq_exchg
= be32_to_cpu(rrq
->rrq_exchg
);
4407 rxid
= bf_get(rrq_rxid
, rrq
);
4409 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4410 "2883 Clear RRQ for SID:x%x OXID:x%x RXID:x%x"
4412 be32_to_cpu(bf_get(rrq_did
, rrq
)),
4413 bf_get(rrq_oxid
, rrq
),
4415 iocb
->iotag
, iocb
->iocb
.ulpContext
);
4417 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
4418 "Clear RRQ: did:x%x flg:x%x exchg:x%.08x",
4419 ndlp
->nlp_DID
, ndlp
->nlp_flag
, rrq
->rrq_exchg
);
4420 if (vport
->fc_myDID
== be32_to_cpu(bf_get(rrq_did
, rrq
)))
4421 xri
= bf_get(rrq_oxid
, rrq
);
4424 prrq
= lpfc_get_active_rrq(vport
, xri
, ndlp
->nlp_DID
);
4426 lpfc_clr_rrq_active(phba
, xri
, prrq
);
4431 * lpfc_els_rsp_echo_acc - Issue echo acc response
4432 * @vport: pointer to a virtual N_Port data structure.
4433 * @data: pointer to echo data to return in the accept.
4434 * @oldiocb: pointer to the original lpfc command iocb data structure.
4435 * @ndlp: pointer to a node-list data structure.
4438 * 0 - Successfully issued acc echo response
4439 * 1 - Failed to issue acc echo response
4442 lpfc_els_rsp_echo_acc(struct lpfc_vport
*vport
, uint8_t *data
,
4443 struct lpfc_iocbq
*oldiocb
, struct lpfc_nodelist
*ndlp
)
4445 struct lpfc_hba
*phba
= vport
->phba
;
4446 struct lpfc_iocbq
*elsiocb
;
4447 struct lpfc_sli
*psli
;
4453 cmdsize
= oldiocb
->iocb
.unsli3
.rcvsli3
.acc_len
;
4455 /* The accumulated length can exceed the BPL_SIZE. For
4456 * now, use this as the limit
4458 if (cmdsize
> LPFC_BPL_SIZE
)
4459 cmdsize
= LPFC_BPL_SIZE
;
4460 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
, ndlp
,
4461 ndlp
->nlp_DID
, ELS_CMD_ACC
);
4465 elsiocb
->iocb
.ulpContext
= oldiocb
->iocb
.ulpContext
; /* Xri / rx_id */
4466 elsiocb
->iocb
.unsli3
.rcvsli3
.ox_id
= oldiocb
->iocb
.unsli3
.rcvsli3
.ox_id
;
4468 /* Xmit ECHO ACC response tag <ulpIoTag> */
4469 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4470 "2876 Xmit ECHO ACC response tag x%x xri x%x\n",
4471 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
);
4472 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
4473 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
4474 pcmd
+= sizeof(uint32_t);
4475 memcpy(pcmd
, data
, cmdsize
- sizeof(uint32_t));
4477 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
4478 "Issue ACC ECHO: did:x%x flg:x%x",
4479 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
4481 phba
->fc_stat
.elsXmitACC
++;
4482 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
4484 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
4485 if (rc
== IOCB_ERROR
) {
4486 lpfc_els_free_iocb(phba
, elsiocb
);
4493 * lpfc_els_disc_adisc - Issue remaining adisc iocbs to npr nodes of a vport
4494 * @vport: pointer to a host virtual N_Port data structure.
4496 * This routine issues Address Discover (ADISC) ELS commands to those
4497 * N_Ports which are in node port recovery state and ADISC has not been issued
4498 * for the @vport. Each time an ELS ADISC IOCB is issued by invoking the
4499 * lpfc_issue_els_adisc() routine, the per @vport number of discover count
4500 * (num_disc_nodes) shall be incremented. If the num_disc_nodes reaches a
4501 * pre-configured threshold (cfg_discovery_threads), the @vport fc_flag will
4502 * be marked with FC_NLP_MORE bit and the process of issuing remaining ADISC
4503 * IOCBs quit for later pick up. On the other hand, after walking through
4504 * all the ndlps with the @vport and there is none ADISC IOCB issued, the
4505 * @vport fc_flag shall be cleared with FC_NLP_MORE bit indicating there is
4506 * no more ADISC need to be sent.
4509 * The number of N_Ports with adisc issued.
4512 lpfc_els_disc_adisc(struct lpfc_vport
*vport
)
4514 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4515 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
4518 /* go thru NPR nodes and issue any remaining ELS ADISCs */
4519 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
, nlp_listp
) {
4520 if (!NLP_CHK_NODE_ACT(ndlp
))
4522 if (ndlp
->nlp_state
== NLP_STE_NPR_NODE
&&
4523 (ndlp
->nlp_flag
& NLP_NPR_2B_DISC
) != 0 &&
4524 (ndlp
->nlp_flag
& NLP_NPR_ADISC
) != 0) {
4525 spin_lock_irq(shost
->host_lock
);
4526 ndlp
->nlp_flag
&= ~NLP_NPR_ADISC
;
4527 spin_unlock_irq(shost
->host_lock
);
4528 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
4529 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_ADISC_ISSUE
);
4530 lpfc_issue_els_adisc(vport
, ndlp
, 0);
4532 vport
->num_disc_nodes
++;
4533 if (vport
->num_disc_nodes
>=
4534 vport
->cfg_discovery_threads
) {
4535 spin_lock_irq(shost
->host_lock
);
4536 vport
->fc_flag
|= FC_NLP_MORE
;
4537 spin_unlock_irq(shost
->host_lock
);
4542 if (sentadisc
== 0) {
4543 spin_lock_irq(shost
->host_lock
);
4544 vport
->fc_flag
&= ~FC_NLP_MORE
;
4545 spin_unlock_irq(shost
->host_lock
);
4551 * lpfc_els_disc_plogi - Issue plogi for all npr nodes of a vport before adisc
4552 * @vport: pointer to a host virtual N_Port data structure.
4554 * This routine issues Port Login (PLOGI) ELS commands to all the N_Ports
4555 * which are in node port recovery state, with a @vport. Each time an ELS
4556 * ADISC PLOGI IOCB is issued by invoking the lpfc_issue_els_plogi() routine,
4557 * the per @vport number of discover count (num_disc_nodes) shall be
4558 * incremented. If the num_disc_nodes reaches a pre-configured threshold
4559 * (cfg_discovery_threads), the @vport fc_flag will be marked with FC_NLP_MORE
4560 * bit set and quit the process of issuing remaining ADISC PLOGIN IOCBs for
4561 * later pick up. On the other hand, after walking through all the ndlps with
4562 * the @vport and there is none ADISC PLOGI IOCB issued, the @vport fc_flag
4563 * shall be cleared with the FC_NLP_MORE bit indicating there is no more ADISC
4564 * PLOGI need to be sent.
4567 * The number of N_Ports with plogi issued.
4570 lpfc_els_disc_plogi(struct lpfc_vport
*vport
)
4572 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4573 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
4576 /* go thru NPR nodes and issue any remaining ELS PLOGIs */
4577 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
, nlp_listp
) {
4578 if (!NLP_CHK_NODE_ACT(ndlp
))
4580 if (ndlp
->nlp_state
== NLP_STE_NPR_NODE
&&
4581 (ndlp
->nlp_flag
& NLP_NPR_2B_DISC
) != 0 &&
4582 (ndlp
->nlp_flag
& NLP_DELAY_TMO
) == 0 &&
4583 (ndlp
->nlp_flag
& NLP_NPR_ADISC
) == 0) {
4584 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
4585 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_PLOGI_ISSUE
);
4586 lpfc_issue_els_plogi(vport
, ndlp
->nlp_DID
, 0);
4588 vport
->num_disc_nodes
++;
4589 if (vport
->num_disc_nodes
>=
4590 vport
->cfg_discovery_threads
) {
4591 spin_lock_irq(shost
->host_lock
);
4592 vport
->fc_flag
|= FC_NLP_MORE
;
4593 spin_unlock_irq(shost
->host_lock
);
4599 lpfc_set_disctmo(vport
);
4602 spin_lock_irq(shost
->host_lock
);
4603 vport
->fc_flag
&= ~FC_NLP_MORE
;
4604 spin_unlock_irq(shost
->host_lock
);
4610 * lpfc_els_flush_rscn - Clean up any rscn activities with a vport
4611 * @vport: pointer to a host virtual N_Port data structure.
4613 * This routine cleans up any Registration State Change Notification
4614 * (RSCN) activity with a @vport. Note that the fc_rscn_flush flag of the
4615 * @vport together with the host_lock is used to prevent multiple thread
4616 * trying to access the RSCN array on a same @vport at the same time.
4619 lpfc_els_flush_rscn(struct lpfc_vport
*vport
)
4621 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4622 struct lpfc_hba
*phba
= vport
->phba
;
4625 spin_lock_irq(shost
->host_lock
);
4626 if (vport
->fc_rscn_flush
) {
4627 /* Another thread is walking fc_rscn_id_list on this vport */
4628 spin_unlock_irq(shost
->host_lock
);
4631 /* Indicate we are walking lpfc_els_flush_rscn on this vport */
4632 vport
->fc_rscn_flush
= 1;
4633 spin_unlock_irq(shost
->host_lock
);
4635 for (i
= 0; i
< vport
->fc_rscn_id_cnt
; i
++) {
4636 lpfc_in_buf_free(phba
, vport
->fc_rscn_id_list
[i
]);
4637 vport
->fc_rscn_id_list
[i
] = NULL
;
4639 spin_lock_irq(shost
->host_lock
);
4640 vport
->fc_rscn_id_cnt
= 0;
4641 vport
->fc_flag
&= ~(FC_RSCN_MODE
| FC_RSCN_DISCOVERY
);
4642 spin_unlock_irq(shost
->host_lock
);
4643 lpfc_can_disctmo(vport
);
4644 /* Indicate we are done walking this fc_rscn_id_list */
4645 vport
->fc_rscn_flush
= 0;
4649 * lpfc_rscn_payload_check - Check whether there is a pending rscn to a did
4650 * @vport: pointer to a host virtual N_Port data structure.
4651 * @did: remote destination port identifier.
4653 * This routine checks whether there is any pending Registration State
4654 * Configuration Notification (RSCN) to a @did on @vport.
4657 * None zero - The @did matched with a pending rscn
4658 * 0 - not able to match @did with a pending rscn
4661 lpfc_rscn_payload_check(struct lpfc_vport
*vport
, uint32_t did
)
4666 uint32_t payload_len
, i
;
4667 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4669 ns_did
.un
.word
= did
;
4671 /* Never match fabric nodes for RSCNs */
4672 if ((did
& Fabric_DID_MASK
) == Fabric_DID_MASK
)
4675 /* If we are doing a FULL RSCN rediscovery, match everything */
4676 if (vport
->fc_flag
& FC_RSCN_DISCOVERY
)
4679 spin_lock_irq(shost
->host_lock
);
4680 if (vport
->fc_rscn_flush
) {
4681 /* Another thread is walking fc_rscn_id_list on this vport */
4682 spin_unlock_irq(shost
->host_lock
);
4685 /* Indicate we are walking fc_rscn_id_list on this vport */
4686 vport
->fc_rscn_flush
= 1;
4687 spin_unlock_irq(shost
->host_lock
);
4688 for (i
= 0; i
< vport
->fc_rscn_id_cnt
; i
++) {
4689 lp
= vport
->fc_rscn_id_list
[i
]->virt
;
4690 payload_len
= be32_to_cpu(*lp
++ & ~ELS_CMD_MASK
);
4691 payload_len
-= sizeof(uint32_t); /* take off word 0 */
4692 while (payload_len
) {
4693 rscn_did
.un
.word
= be32_to_cpu(*lp
++);
4694 payload_len
-= sizeof(uint32_t);
4695 switch (rscn_did
.un
.b
.resv
& RSCN_ADDRESS_FORMAT_MASK
) {
4696 case RSCN_ADDRESS_FORMAT_PORT
:
4697 if ((ns_did
.un
.b
.domain
== rscn_did
.un
.b
.domain
)
4698 && (ns_did
.un
.b
.area
== rscn_did
.un
.b
.area
)
4699 && (ns_did
.un
.b
.id
== rscn_did
.un
.b
.id
))
4700 goto return_did_out
;
4702 case RSCN_ADDRESS_FORMAT_AREA
:
4703 if ((ns_did
.un
.b
.domain
== rscn_did
.un
.b
.domain
)
4704 && (ns_did
.un
.b
.area
== rscn_did
.un
.b
.area
))
4705 goto return_did_out
;
4707 case RSCN_ADDRESS_FORMAT_DOMAIN
:
4708 if (ns_did
.un
.b
.domain
== rscn_did
.un
.b
.domain
)
4709 goto return_did_out
;
4711 case RSCN_ADDRESS_FORMAT_FABRIC
:
4712 goto return_did_out
;
4716 /* Indicate we are done with walking fc_rscn_id_list on this vport */
4717 vport
->fc_rscn_flush
= 0;
4720 /* Indicate we are done with walking fc_rscn_id_list on this vport */
4721 vport
->fc_rscn_flush
= 0;
4726 * lpfc_rscn_recovery_check - Send recovery event to vport nodes matching rscn
4727 * @vport: pointer to a host virtual N_Port data structure.
4729 * This routine sends recovery (NLP_EVT_DEVICE_RECOVERY) event to the
4730 * state machine for a @vport's nodes that are with pending RSCN (Registration
4731 * State Change Notification).
4734 * 0 - Successful (currently alway return 0)
4737 lpfc_rscn_recovery_check(struct lpfc_vport
*vport
)
4739 struct lpfc_nodelist
*ndlp
= NULL
;
4741 /* Move all affected nodes by pending RSCNs to NPR state. */
4742 list_for_each_entry(ndlp
, &vport
->fc_nodes
, nlp_listp
) {
4743 if (!NLP_CHK_NODE_ACT(ndlp
) ||
4744 (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
) ||
4745 !lpfc_rscn_payload_check(vport
, ndlp
->nlp_DID
))
4747 lpfc_disc_state_machine(vport
, ndlp
, NULL
,
4748 NLP_EVT_DEVICE_RECOVERY
);
4749 lpfc_cancel_retry_delay_tmo(vport
, ndlp
);
4755 * lpfc_send_rscn_event - Send an RSCN event to management application
4756 * @vport: pointer to a host virtual N_Port data structure.
4757 * @cmdiocb: pointer to lpfc command iocb data structure.
4759 * lpfc_send_rscn_event sends an RSCN netlink event to management
4763 lpfc_send_rscn_event(struct lpfc_vport
*vport
,
4764 struct lpfc_iocbq
*cmdiocb
)
4766 struct lpfc_dmabuf
*pcmd
;
4767 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4768 uint32_t *payload_ptr
;
4769 uint32_t payload_len
;
4770 struct lpfc_rscn_event_header
*rscn_event_data
;
4772 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
4773 payload_ptr
= (uint32_t *) pcmd
->virt
;
4774 payload_len
= be32_to_cpu(*payload_ptr
& ~ELS_CMD_MASK
);
4776 rscn_event_data
= kmalloc(sizeof(struct lpfc_rscn_event_header
) +
4777 payload_len
, GFP_KERNEL
);
4778 if (!rscn_event_data
) {
4779 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
4780 "0147 Failed to allocate memory for RSCN event\n");
4783 rscn_event_data
->event_type
= FC_REG_RSCN_EVENT
;
4784 rscn_event_data
->payload_length
= payload_len
;
4785 memcpy(rscn_event_data
->rscn_payload
, payload_ptr
,
4788 fc_host_post_vendor_event(shost
,
4789 fc_get_event_number(),
4790 sizeof(struct lpfc_els_event_header
) + payload_len
,
4791 (char *)rscn_event_data
,
4794 kfree(rscn_event_data
);
4798 * lpfc_els_rcv_rscn - Process an unsolicited rscn iocb
4799 * @vport: pointer to a host virtual N_Port data structure.
4800 * @cmdiocb: pointer to lpfc command iocb data structure.
4801 * @ndlp: pointer to a node-list data structure.
4803 * This routine processes an unsolicited RSCN (Registration State Change
4804 * Notification) IOCB. First, the payload of the unsolicited RSCN is walked
4805 * to invoke fc_host_post_event() routine to the FC transport layer. If the
4806 * discover state machine is about to begin discovery, it just accepts the
4807 * RSCN and the discovery process will satisfy the RSCN. If this RSCN only
4808 * contains N_Port IDs for other vports on this HBA, it just accepts the
4809 * RSCN and ignore processing it. If the state machine is in the recovery
4810 * state, the fc_rscn_id_list of this @vport is walked and the
4811 * lpfc_rscn_recovery_check() routine is invoked to send recovery event for
4812 * all nodes that match RSCN payload. Otherwise, the lpfc_els_handle_rscn()
4813 * routine is invoked to handle the RSCN event.
4816 * 0 - Just sent the acc response
4817 * 1 - Sent the acc response and waited for name server completion
4820 lpfc_els_rcv_rscn(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
4821 struct lpfc_nodelist
*ndlp
)
4823 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4824 struct lpfc_hba
*phba
= vport
->phba
;
4825 struct lpfc_dmabuf
*pcmd
;
4826 uint32_t *lp
, *datap
;
4828 uint32_t payload_len
, length
, nportid
, *cmd
;
4830 int rscn_id
= 0, hba_id
= 0;
4833 icmd
= &cmdiocb
->iocb
;
4834 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
4835 lp
= (uint32_t *) pcmd
->virt
;
4837 payload_len
= be32_to_cpu(*lp
++ & ~ELS_CMD_MASK
);
4838 payload_len
-= sizeof(uint32_t); /* take off word 0 */
4840 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
4841 "0214 RSCN received Data: x%x x%x x%x x%x\n",
4842 vport
->fc_flag
, payload_len
, *lp
,
4843 vport
->fc_rscn_id_cnt
);
4845 /* Send an RSCN event to the management application */
4846 lpfc_send_rscn_event(vport
, cmdiocb
);
4848 for (i
= 0; i
< payload_len
/sizeof(uint32_t); i
++)
4849 fc_host_post_event(shost
, fc_get_event_number(),
4850 FCH_EVT_RSCN
, lp
[i
]);
4852 /* If we are about to begin discovery, just ACC the RSCN.
4853 * Discovery processing will satisfy it.
4855 if (vport
->port_state
<= LPFC_NS_QRY
) {
4856 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
4857 "RCV RSCN ignore: did:x%x/ste:x%x flg:x%x",
4858 ndlp
->nlp_DID
, vport
->port_state
, ndlp
->nlp_flag
);
4860 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
, ndlp
, NULL
);
4864 /* If this RSCN just contains NPortIDs for other vports on this HBA,
4865 * just ACC and ignore it.
4867 if ((phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
4868 !(vport
->cfg_peer_port_login
)) {
4873 nportid
= ((be32_to_cpu(nportid
)) & Mask_DID
);
4874 i
-= sizeof(uint32_t);
4876 if (lpfc_find_vport_by_did(phba
, nportid
))
4879 if (rscn_id
== hba_id
) {
4880 /* ALL NPortIDs in RSCN are on HBA */
4881 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
4883 "Data: x%x x%x x%x x%x\n",
4884 vport
->fc_flag
, payload_len
,
4885 *lp
, vport
->fc_rscn_id_cnt
);
4886 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
4887 "RCV RSCN vport: did:x%x/ste:x%x flg:x%x",
4888 ndlp
->nlp_DID
, vport
->port_state
,
4891 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
,
4897 spin_lock_irq(shost
->host_lock
);
4898 if (vport
->fc_rscn_flush
) {
4899 /* Another thread is walking fc_rscn_id_list on this vport */
4900 vport
->fc_flag
|= FC_RSCN_DISCOVERY
;
4901 spin_unlock_irq(shost
->host_lock
);
4903 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
, ndlp
, NULL
);
4906 /* Indicate we are walking fc_rscn_id_list on this vport */
4907 vport
->fc_rscn_flush
= 1;
4908 spin_unlock_irq(shost
->host_lock
);
4909 /* Get the array count after successfully have the token */
4910 rscn_cnt
= vport
->fc_rscn_id_cnt
;
4911 /* If we are already processing an RSCN, save the received
4912 * RSCN payload buffer, cmdiocb->context2 to process later.
4914 if (vport
->fc_flag
& (FC_RSCN_MODE
| FC_NDISC_ACTIVE
)) {
4915 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
4916 "RCV RSCN defer: did:x%x/ste:x%x flg:x%x",
4917 ndlp
->nlp_DID
, vport
->port_state
, ndlp
->nlp_flag
);
4919 spin_lock_irq(shost
->host_lock
);
4920 vport
->fc_flag
|= FC_RSCN_DEFERRED
;
4921 if ((rscn_cnt
< FC_MAX_HOLD_RSCN
) &&
4922 !(vport
->fc_flag
& FC_RSCN_DISCOVERY
)) {
4923 vport
->fc_flag
|= FC_RSCN_MODE
;
4924 spin_unlock_irq(shost
->host_lock
);
4926 cmd
= vport
->fc_rscn_id_list
[rscn_cnt
-1]->virt
;
4927 length
= be32_to_cpu(*cmd
& ~ELS_CMD_MASK
);
4930 (payload_len
+ length
<= LPFC_BPL_SIZE
)) {
4931 *cmd
&= ELS_CMD_MASK
;
4932 *cmd
|= cpu_to_be32(payload_len
+ length
);
4933 memcpy(((uint8_t *)cmd
) + length
, lp
,
4936 vport
->fc_rscn_id_list
[rscn_cnt
] = pcmd
;
4937 vport
->fc_rscn_id_cnt
++;
4938 /* If we zero, cmdiocb->context2, the calling
4939 * routine will not try to free it.
4941 cmdiocb
->context2
= NULL
;
4944 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
4945 "0235 Deferred RSCN "
4946 "Data: x%x x%x x%x\n",
4947 vport
->fc_rscn_id_cnt
, vport
->fc_flag
,
4950 vport
->fc_flag
|= FC_RSCN_DISCOVERY
;
4951 spin_unlock_irq(shost
->host_lock
);
4952 /* ReDiscovery RSCN */
4953 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
4954 "0234 ReDiscovery RSCN "
4955 "Data: x%x x%x x%x\n",
4956 vport
->fc_rscn_id_cnt
, vport
->fc_flag
,
4959 /* Indicate we are done walking fc_rscn_id_list on this vport */
4960 vport
->fc_rscn_flush
= 0;
4962 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
, ndlp
, NULL
);
4963 /* send RECOVERY event for ALL nodes that match RSCN payload */
4964 lpfc_rscn_recovery_check(vport
);
4965 spin_lock_irq(shost
->host_lock
);
4966 vport
->fc_flag
&= ~FC_RSCN_DEFERRED
;
4967 spin_unlock_irq(shost
->host_lock
);
4970 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
4971 "RCV RSCN: did:x%x/ste:x%x flg:x%x",
4972 ndlp
->nlp_DID
, vport
->port_state
, ndlp
->nlp_flag
);
4974 spin_lock_irq(shost
->host_lock
);
4975 vport
->fc_flag
|= FC_RSCN_MODE
;
4976 spin_unlock_irq(shost
->host_lock
);
4977 vport
->fc_rscn_id_list
[vport
->fc_rscn_id_cnt
++] = pcmd
;
4978 /* Indicate we are done walking fc_rscn_id_list on this vport */
4979 vport
->fc_rscn_flush
= 0;
4981 * If we zero, cmdiocb->context2, the calling routine will
4982 * not try to free it.
4984 cmdiocb
->context2
= NULL
;
4985 lpfc_set_disctmo(vport
);
4987 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
, ndlp
, NULL
);
4988 /* send RECOVERY event for ALL nodes that match RSCN payload */
4989 lpfc_rscn_recovery_check(vport
);
4990 return lpfc_els_handle_rscn(vport
);
4994 * lpfc_els_handle_rscn - Handle rscn for a vport
4995 * @vport: pointer to a host virtual N_Port data structure.
4997 * This routine handles the Registration State Configuration Notification
4998 * (RSCN) for a @vport. If login to NameServer does not exist, a new ndlp shall
4999 * be created and a Port Login (PLOGI) to the NameServer is issued. Otherwise,
5000 * if the ndlp to NameServer exists, a Common Transport (CT) command to the
5001 * NameServer shall be issued. If CT command to the NameServer fails to be
5002 * issued, the lpfc_els_flush_rscn() routine shall be invoked to clean up any
5003 * RSCN activities with the @vport.
5006 * 0 - Cleaned up rscn on the @vport
5007 * 1 - Wait for plogi to name server before proceed
5010 lpfc_els_handle_rscn(struct lpfc_vport
*vport
)
5012 struct lpfc_nodelist
*ndlp
;
5013 struct lpfc_hba
*phba
= vport
->phba
;
5015 /* Ignore RSCN if the port is being torn down. */
5016 if (vport
->load_flag
& FC_UNLOADING
) {
5017 lpfc_els_flush_rscn(vport
);
5021 /* Start timer for RSCN processing */
5022 lpfc_set_disctmo(vport
);
5024 /* RSCN processed */
5025 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
5026 "0215 RSCN processed Data: x%x x%x x%x x%x\n",
5027 vport
->fc_flag
, 0, vport
->fc_rscn_id_cnt
,
5030 /* To process RSCN, first compare RSCN data with NameServer */
5031 vport
->fc_ns_retry
= 0;
5032 vport
->num_disc_nodes
= 0;
5034 ndlp
= lpfc_findnode_did(vport
, NameServer_DID
);
5035 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
)
5036 && ndlp
->nlp_state
== NLP_STE_UNMAPPED_NODE
) {
5037 /* Good ndlp, issue CT Request to NameServer */
5038 if (lpfc_ns_cmd(vport
, SLI_CTNS_GID_FT
, 0, 0) == 0)
5039 /* Wait for NameServer query cmpl before we can
5043 /* If login to NameServer does not exist, issue one */
5044 /* Good status, issue PLOGI to NameServer */
5045 ndlp
= lpfc_findnode_did(vport
, NameServer_DID
);
5046 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
))
5047 /* Wait for NameServer login cmpl before we can
5052 ndlp
= lpfc_enable_node(vport
, ndlp
,
5053 NLP_STE_PLOGI_ISSUE
);
5055 lpfc_els_flush_rscn(vport
);
5058 ndlp
->nlp_prev_state
= NLP_STE_UNUSED_NODE
;
5060 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
5062 lpfc_els_flush_rscn(vport
);
5065 lpfc_nlp_init(vport
, ndlp
, NameServer_DID
);
5066 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
5067 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_PLOGI_ISSUE
);
5069 ndlp
->nlp_type
|= NLP_FABRIC
;
5070 lpfc_issue_els_plogi(vport
, NameServer_DID
, 0);
5071 /* Wait for NameServer login cmpl before we can
5077 lpfc_els_flush_rscn(vport
);
5082 * lpfc_els_rcv_flogi - Process an unsolicited flogi iocb
5083 * @vport: pointer to a host virtual N_Port data structure.
5084 * @cmdiocb: pointer to lpfc command iocb data structure.
5085 * @ndlp: pointer to a node-list data structure.
5087 * This routine processes Fabric Login (FLOGI) IOCB received as an ELS
5088 * unsolicited event. An unsolicited FLOGI can be received in a point-to-
5089 * point topology. As an unsolicited FLOGI should not be received in a loop
5090 * mode, any unsolicited FLOGI received in loop mode shall be ignored. The
5091 * lpfc_check_sparm() routine is invoked to check the parameters in the
5092 * unsolicited FLOGI. If parameters validation failed, the routine
5093 * lpfc_els_rsp_reject() shall be called with reject reason code set to
5094 * LSEXP_SPARM_OPTIONS to reject the FLOGI. Otherwise, the Port WWN in the
5095 * FLOGI shall be compared with the Port WWN of the @vport to determine who
5096 * will initiate PLOGI. The higher lexicographical value party shall has
5097 * higher priority (as the winning port) and will initiate PLOGI and
5098 * communicate Port_IDs (Addresses) for both nodes in PLOGI. The result
5099 * of this will be marked in the @vport fc_flag field with FC_PT2PT_PLOGI
5100 * and then the lpfc_els_rsp_acc() routine is invoked to accept the FLOGI.
5103 * 0 - Successfully processed the unsolicited flogi
5104 * 1 - Failed to process the unsolicited flogi
5107 lpfc_els_rcv_flogi(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5108 struct lpfc_nodelist
*ndlp
)
5110 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
5111 struct lpfc_hba
*phba
= vport
->phba
;
5112 struct lpfc_dmabuf
*pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
5113 uint32_t *lp
= (uint32_t *) pcmd
->virt
;
5114 IOCB_t
*icmd
= &cmdiocb
->iocb
;
5115 struct serv_parm
*sp
;
5120 uint32_t fc_flag
= 0;
5121 uint32_t port_state
= 0;
5124 sp
= (struct serv_parm
*) lp
;
5126 /* FLOGI received */
5128 lpfc_set_disctmo(vport
);
5130 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
5131 /* We should never receive a FLOGI in loop mode, ignore it */
5132 did
= icmd
->un
.elsreq64
.remoteID
;
5134 /* An FLOGI ELS command <elsCmd> was received from DID <did> in
5136 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
5137 "0113 An FLOGI ELS command x%x was "
5138 "received from DID x%x in Loop Mode\n",
5143 if ((lpfc_check_sparm(vport
, ndlp
, sp
, CLASS3
, 1))) {
5144 /* For a FLOGI we accept, then if our portname is greater
5145 * then the remote portname we initiate Nport login.
5148 rc
= memcmp(&vport
->fc_portname
, &sp
->portName
,
5149 sizeof(struct lpfc_name
));
5152 if (phba
->sli_rev
< LPFC_SLI_REV4
) {
5153 mbox
= mempool_alloc(phba
->mbox_mem_pool
,
5157 lpfc_linkdown(phba
);
5158 lpfc_init_link(phba
, mbox
,
5160 phba
->cfg_link_speed
);
5161 mbox
->u
.mb
.un
.varInitLnk
.lipsr_AL_PA
= 0;
5162 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
5163 mbox
->vport
= vport
;
5164 rc
= lpfc_sli_issue_mbox(phba
, mbox
,
5166 lpfc_set_loopback_flag(phba
);
5167 if (rc
== MBX_NOT_FINISHED
)
5168 mempool_free(mbox
, phba
->mbox_mem_pool
);
5171 /* abort the flogi coming back to ourselves
5172 * due to external loopback on the port.
5174 lpfc_els_abort_flogi(phba
);
5177 } else if (rc
> 0) { /* greater than */
5178 spin_lock_irq(shost
->host_lock
);
5179 vport
->fc_flag
|= FC_PT2PT_PLOGI
;
5180 spin_unlock_irq(shost
->host_lock
);
5182 /* If we have the high WWPN we can assign our own
5183 * myDID; otherwise, we have to WAIT for a PLOGI
5184 * from the remote NPort to find out what it
5187 vport
->fc_myDID
= PT2PT_LocalID
;
5189 vport
->fc_myDID
= PT2PT_RemoteID
;
5192 * The vport state should go to LPFC_FLOGI only
5193 * AFTER we issue a FLOGI, not receive one.
5195 spin_lock_irq(shost
->host_lock
);
5196 fc_flag
= vport
->fc_flag
;
5197 port_state
= vport
->port_state
;
5198 vport
->fc_flag
|= FC_PT2PT
;
5199 vport
->fc_flag
&= ~(FC_FABRIC
| FC_PUBLIC_LOOP
);
5200 vport
->port_state
= LPFC_FLOGI
;
5201 spin_unlock_irq(shost
->host_lock
);
5202 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
5203 "3311 Rcv Flogi PS x%x new PS x%x "
5204 "fc_flag x%x new fc_flag x%x\n",
5205 port_state
, vport
->port_state
,
5206 fc_flag
, vport
->fc_flag
);
5209 * We temporarily set fc_myDID to make it look like we are
5210 * a Fabric. This is done just so we end up with the right
5211 * did / sid on the FLOGI ACC rsp.
5213 did
= vport
->fc_myDID
;
5214 vport
->fc_myDID
= Fabric_DID
;
5217 /* Reject this request because invalid parameters */
5218 stat
.un
.b
.lsRjtRsvd0
= 0;
5219 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
5220 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_SPARM_OPTIONS
;
5221 stat
.un
.b
.vendorUnique
= 0;
5224 * We temporarily set fc_myDID to make it look like we are
5225 * a Fabric. This is done just so we end up with the right
5226 * did / sid on the FLOGI LS_RJT rsp.
5228 did
= vport
->fc_myDID
;
5229 vport
->fc_myDID
= Fabric_DID
;
5231 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
,
5234 /* Now lets put fc_myDID back to what its supposed to be */
5235 vport
->fc_myDID
= did
;
5241 lpfc_els_rsp_acc(vport
, ELS_CMD_PLOGI
, cmdiocb
, ndlp
, NULL
);
5243 /* Now lets put fc_myDID back to what its supposed to be */
5244 vport
->fc_myDID
= did
;
5246 if (!(vport
->fc_flag
& FC_PT2PT_PLOGI
)) {
5248 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
5252 lpfc_config_link(phba
, mbox
);
5254 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
5255 mbox
->vport
= vport
;
5256 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
5257 if (rc
== MBX_NOT_FINISHED
) {
5258 mempool_free(mbox
, phba
->mbox_mem_pool
);
5269 * lpfc_els_rcv_rnid - Process an unsolicited rnid iocb
5270 * @vport: pointer to a host virtual N_Port data structure.
5271 * @cmdiocb: pointer to lpfc command iocb data structure.
5272 * @ndlp: pointer to a node-list data structure.
5274 * This routine processes Request Node Identification Data (RNID) IOCB
5275 * received as an ELS unsolicited event. Only when the RNID specified format
5276 * 0x0 or 0xDF (Topology Discovery Specific Node Identification Data)
5277 * present, this routine will invoke the lpfc_els_rsp_rnid_acc() routine to
5278 * Accept (ACC) the RNID ELS command. All the other RNID formats are
5279 * rejected by invoking the lpfc_els_rsp_reject() routine.
5282 * 0 - Successfully processed rnid iocb (currently always return 0)
5285 lpfc_els_rcv_rnid(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5286 struct lpfc_nodelist
*ndlp
)
5288 struct lpfc_dmabuf
*pcmd
;
5295 icmd
= &cmdiocb
->iocb
;
5296 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
5297 lp
= (uint32_t *) pcmd
->virt
;
5304 switch (rn
->Format
) {
5306 case RNID_TOPOLOGY_DISC
:
5308 lpfc_els_rsp_rnid_acc(vport
, rn
->Format
, cmdiocb
, ndlp
);
5311 /* Reject this request because format not supported */
5312 stat
.un
.b
.lsRjtRsvd0
= 0;
5313 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
5314 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_CANT_GIVE_DATA
;
5315 stat
.un
.b
.vendorUnique
= 0;
5316 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
,
5323 * lpfc_els_rcv_echo - Process an unsolicited echo iocb
5324 * @vport: pointer to a host virtual N_Port data structure.
5325 * @cmdiocb: pointer to lpfc command iocb data structure.
5326 * @ndlp: pointer to a node-list data structure.
5329 * 0 - Successfully processed echo iocb (currently always return 0)
5332 lpfc_els_rcv_echo(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5333 struct lpfc_nodelist
*ndlp
)
5337 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) cmdiocb
->context2
)->virt
);
5339 /* skip over first word of echo command to find echo data */
5340 pcmd
+= sizeof(uint32_t);
5342 lpfc_els_rsp_echo_acc(vport
, pcmd
, cmdiocb
, ndlp
);
5347 * lpfc_els_rcv_lirr - Process an unsolicited lirr iocb
5348 * @vport: pointer to a host virtual N_Port data structure.
5349 * @cmdiocb: pointer to lpfc command iocb data structure.
5350 * @ndlp: pointer to a node-list data structure.
5352 * This routine processes a Link Incident Report Registration(LIRR) IOCB
5353 * received as an ELS unsolicited event. Currently, this function just invokes
5354 * the lpfc_els_rsp_reject() routine to reject the LIRR IOCB unconditionally.
5357 * 0 - Successfully processed lirr iocb (currently always return 0)
5360 lpfc_els_rcv_lirr(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5361 struct lpfc_nodelist
*ndlp
)
5365 /* For now, unconditionally reject this command */
5366 stat
.un
.b
.lsRjtRsvd0
= 0;
5367 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
5368 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_CANT_GIVE_DATA
;
5369 stat
.un
.b
.vendorUnique
= 0;
5370 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
, NULL
);
5375 * lpfc_els_rcv_rrq - Process an unsolicited rrq iocb
5376 * @vport: pointer to a host virtual N_Port data structure.
5377 * @cmdiocb: pointer to lpfc command iocb data structure.
5378 * @ndlp: pointer to a node-list data structure.
5380 * This routine processes a Reinstate Recovery Qualifier (RRQ) IOCB
5381 * received as an ELS unsolicited event. A request to RRQ shall only
5382 * be accepted if the Originator Nx_Port N_Port_ID or the Responder
5383 * Nx_Port N_Port_ID of the target Exchange is the same as the
5384 * N_Port_ID of the Nx_Port that makes the request. If the RRQ is
5385 * not accepted, an LS_RJT with reason code "Unable to perform
5386 * command request" and reason code explanation "Invalid Originator
5387 * S_ID" shall be returned. For now, we just unconditionally accept
5388 * RRQ from the target.
5391 lpfc_els_rcv_rrq(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5392 struct lpfc_nodelist
*ndlp
)
5394 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
, ndlp
, NULL
);
5395 if (vport
->phba
->sli_rev
== LPFC_SLI_REV4
)
5396 lpfc_els_clear_rrq(vport
, cmdiocb
, ndlp
);
5400 * lpfc_els_rsp_rls_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd
5401 * @phba: pointer to lpfc hba data structure.
5402 * @pmb: pointer to the driver internal queue element for mailbox command.
5404 * This routine is the completion callback function for the MBX_READ_LNK_STAT
5405 * mailbox command. This callback function is to actually send the Accept
5406 * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It
5407 * collects the link statistics from the completion of the MBX_READ_LNK_STAT
5408 * mailbox command, constructs the RPS response with the link statistics
5409 * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC
5410 * response to the RPS.
5412 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
5413 * will be incremented by 1 for holding the ndlp and the reference to ndlp
5414 * will be stored into the context1 field of the IOCB for the completion
5415 * callback function to the RPS Accept Response ELS IOCB command.
5419 lpfc_els_rsp_rls_acc(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
5423 struct RLS_RSP
*rls_rsp
;
5425 struct lpfc_iocbq
*elsiocb
;
5426 struct lpfc_nodelist
*ndlp
;
5433 ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
5434 rxid
= (uint16_t) ((unsigned long)(pmb
->context1
) & 0xffff);
5435 oxid
= (uint16_t) (((unsigned long)(pmb
->context1
) >> 16) & 0xffff);
5436 pmb
->context1
= NULL
;
5437 pmb
->context2
= NULL
;
5439 if (mb
->mbxStatus
) {
5440 mempool_free(pmb
, phba
->mbox_mem_pool
);
5444 cmdsize
= sizeof(struct RLS_RSP
) + sizeof(uint32_t);
5445 elsiocb
= lpfc_prep_els_iocb(phba
->pport
, 0, cmdsize
,
5446 lpfc_max_els_tries
, ndlp
,
5447 ndlp
->nlp_DID
, ELS_CMD_ACC
);
5449 /* Decrement the ndlp reference count from previous mbox command */
5453 mempool_free(pmb
, phba
->mbox_mem_pool
);
5457 icmd
= &elsiocb
->iocb
;
5458 icmd
->ulpContext
= rxid
;
5459 icmd
->unsli3
.rcvsli3
.ox_id
= oxid
;
5461 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
5462 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
5463 pcmd
+= sizeof(uint32_t); /* Skip past command */
5464 rls_rsp
= (struct RLS_RSP
*)pcmd
;
5466 rls_rsp
->linkFailureCnt
= cpu_to_be32(mb
->un
.varRdLnk
.linkFailureCnt
);
5467 rls_rsp
->lossSyncCnt
= cpu_to_be32(mb
->un
.varRdLnk
.lossSyncCnt
);
5468 rls_rsp
->lossSignalCnt
= cpu_to_be32(mb
->un
.varRdLnk
.lossSignalCnt
);
5469 rls_rsp
->primSeqErrCnt
= cpu_to_be32(mb
->un
.varRdLnk
.primSeqErrCnt
);
5470 rls_rsp
->invalidXmitWord
= cpu_to_be32(mb
->un
.varRdLnk
.invalidXmitWord
);
5471 rls_rsp
->crcCnt
= cpu_to_be32(mb
->un
.varRdLnk
.crcCnt
);
5472 mempool_free(pmb
, phba
->mbox_mem_pool
);
5473 /* Xmit ELS RLS ACC response tag <ulpIoTag> */
5474 lpfc_printf_vlog(ndlp
->vport
, KERN_INFO
, LOG_ELS
,
5475 "2874 Xmit ELS RLS ACC response tag x%x xri x%x, "
5476 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
5477 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
5478 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
5480 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
5481 phba
->fc_stat
.elsXmitACC
++;
5482 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) == IOCB_ERROR
)
5483 lpfc_els_free_iocb(phba
, elsiocb
);
5487 * lpfc_els_rsp_rps_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd
5488 * @phba: pointer to lpfc hba data structure.
5489 * @pmb: pointer to the driver internal queue element for mailbox command.
5491 * This routine is the completion callback function for the MBX_READ_LNK_STAT
5492 * mailbox command. This callback function is to actually send the Accept
5493 * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It
5494 * collects the link statistics from the completion of the MBX_READ_LNK_STAT
5495 * mailbox command, constructs the RPS response with the link statistics
5496 * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC
5497 * response to the RPS.
5499 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
5500 * will be incremented by 1 for holding the ndlp and the reference to ndlp
5501 * will be stored into the context1 field of the IOCB for the completion
5502 * callback function to the RPS Accept Response ELS IOCB command.
5506 lpfc_els_rsp_rps_acc(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
5512 struct lpfc_iocbq
*elsiocb
;
5513 struct lpfc_nodelist
*ndlp
;
5521 ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
5522 rxid
= (uint16_t) ((unsigned long)(pmb
->context1
) & 0xffff);
5523 oxid
= (uint16_t) (((unsigned long)(pmb
->context1
) >> 16) & 0xffff);
5524 pmb
->context1
= NULL
;
5525 pmb
->context2
= NULL
;
5527 if (mb
->mbxStatus
) {
5528 mempool_free(pmb
, phba
->mbox_mem_pool
);
5532 cmdsize
= sizeof(RPS_RSP
) + sizeof(uint32_t);
5533 mempool_free(pmb
, phba
->mbox_mem_pool
);
5534 elsiocb
= lpfc_prep_els_iocb(phba
->pport
, 0, cmdsize
,
5535 lpfc_max_els_tries
, ndlp
,
5536 ndlp
->nlp_DID
, ELS_CMD_ACC
);
5538 /* Decrement the ndlp reference count from previous mbox command */
5544 icmd
= &elsiocb
->iocb
;
5545 icmd
->ulpContext
= rxid
;
5546 icmd
->unsli3
.rcvsli3
.ox_id
= oxid
;
5548 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
5549 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
5550 pcmd
+= sizeof(uint32_t); /* Skip past command */
5551 rps_rsp
= (RPS_RSP
*)pcmd
;
5553 if (phba
->fc_topology
!= LPFC_TOPOLOGY_LOOP
)
5557 if (phba
->pport
->fc_flag
& FC_FABRIC
)
5561 rps_rsp
->portStatus
= cpu_to_be16(status
);
5562 rps_rsp
->linkFailureCnt
= cpu_to_be32(mb
->un
.varRdLnk
.linkFailureCnt
);
5563 rps_rsp
->lossSyncCnt
= cpu_to_be32(mb
->un
.varRdLnk
.lossSyncCnt
);
5564 rps_rsp
->lossSignalCnt
= cpu_to_be32(mb
->un
.varRdLnk
.lossSignalCnt
);
5565 rps_rsp
->primSeqErrCnt
= cpu_to_be32(mb
->un
.varRdLnk
.primSeqErrCnt
);
5566 rps_rsp
->invalidXmitWord
= cpu_to_be32(mb
->un
.varRdLnk
.invalidXmitWord
);
5567 rps_rsp
->crcCnt
= cpu_to_be32(mb
->un
.varRdLnk
.crcCnt
);
5568 /* Xmit ELS RPS ACC response tag <ulpIoTag> */
5569 lpfc_printf_vlog(ndlp
->vport
, KERN_INFO
, LOG_ELS
,
5570 "0118 Xmit ELS RPS ACC response tag x%x xri x%x, "
5571 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
5572 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
5573 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
5575 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
5576 phba
->fc_stat
.elsXmitACC
++;
5577 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) == IOCB_ERROR
)
5578 lpfc_els_free_iocb(phba
, elsiocb
);
5583 * lpfc_els_rcv_rls - Process an unsolicited rls iocb
5584 * @vport: pointer to a host virtual N_Port data structure.
5585 * @cmdiocb: pointer to lpfc command iocb data structure.
5586 * @ndlp: pointer to a node-list data structure.
5588 * This routine processes Read Port Status (RPL) IOCB received as an
5589 * ELS unsolicited event. It first checks the remote port state. If the
5590 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
5591 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject
5592 * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command
5593 * for reading the HBA link statistics. It is for the callback function,
5594 * lpfc_els_rsp_rls_acc(), set to the MBX_READ_LNK_STAT mailbox command
5595 * to actually sending out RPL Accept (ACC) response.
5598 * 0 - Successfully processed rls iocb (currently always return 0)
5601 lpfc_els_rcv_rls(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5602 struct lpfc_nodelist
*ndlp
)
5604 struct lpfc_hba
*phba
= vport
->phba
;
5606 struct lpfc_dmabuf
*pcmd
;
5609 if ((ndlp
->nlp_state
!= NLP_STE_UNMAPPED_NODE
) &&
5610 (ndlp
->nlp_state
!= NLP_STE_MAPPED_NODE
))
5611 /* reject the unsolicited RPS request and done with it */
5614 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
5616 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_ATOMIC
);
5618 lpfc_read_lnk_stat(phba
, mbox
);
5619 mbox
->context1
= (void *)((unsigned long)
5620 ((cmdiocb
->iocb
.unsli3
.rcvsli3
.ox_id
<< 16) |
5621 cmdiocb
->iocb
.ulpContext
)); /* rx_id */
5622 mbox
->context2
= lpfc_nlp_get(ndlp
);
5623 mbox
->vport
= vport
;
5624 mbox
->mbox_cmpl
= lpfc_els_rsp_rls_acc
;
5625 if (lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
)
5626 != MBX_NOT_FINISHED
)
5627 /* Mbox completion will send ELS Response */
5629 /* Decrement reference count used for the failed mbox
5633 mempool_free(mbox
, phba
->mbox_mem_pool
);
5636 /* issue rejection response */
5637 stat
.un
.b
.lsRjtRsvd0
= 0;
5638 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
5639 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_CANT_GIVE_DATA
;
5640 stat
.un
.b
.vendorUnique
= 0;
5641 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
, NULL
);
5646 * lpfc_els_rcv_rtv - Process an unsolicited rtv iocb
5647 * @vport: pointer to a host virtual N_Port data structure.
5648 * @cmdiocb: pointer to lpfc command iocb data structure.
5649 * @ndlp: pointer to a node-list data structure.
5651 * This routine processes Read Timout Value (RTV) IOCB received as an
5652 * ELS unsolicited event. It first checks the remote port state. If the
5653 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
5654 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject
5655 * response. Otherwise, it sends the Accept(ACC) response to a Read Timeout
5656 * Value (RTV) unsolicited IOCB event.
5658 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
5659 * will be incremented by 1 for holding the ndlp and the reference to ndlp
5660 * will be stored into the context1 field of the IOCB for the completion
5661 * callback function to the RPS Accept Response ELS IOCB command.
5664 * 0 - Successfully processed rtv iocb (currently always return 0)
5667 lpfc_els_rcv_rtv(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5668 struct lpfc_nodelist
*ndlp
)
5670 struct lpfc_hba
*phba
= vport
->phba
;
5672 struct RTV_RSP
*rtv_rsp
;
5674 struct lpfc_iocbq
*elsiocb
;
5678 if ((ndlp
->nlp_state
!= NLP_STE_UNMAPPED_NODE
) &&
5679 (ndlp
->nlp_state
!= NLP_STE_MAPPED_NODE
))
5680 /* reject the unsolicited RPS request and done with it */
5683 cmdsize
= sizeof(struct RTV_RSP
) + sizeof(uint32_t);
5684 elsiocb
= lpfc_prep_els_iocb(phba
->pport
, 0, cmdsize
,
5685 lpfc_max_els_tries
, ndlp
,
5686 ndlp
->nlp_DID
, ELS_CMD_ACC
);
5691 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
5692 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
5693 pcmd
+= sizeof(uint32_t); /* Skip past command */
5695 /* use the command's xri in the response */
5696 elsiocb
->iocb
.ulpContext
= cmdiocb
->iocb
.ulpContext
; /* Xri / rx_id */
5697 elsiocb
->iocb
.unsli3
.rcvsli3
.ox_id
= cmdiocb
->iocb
.unsli3
.rcvsli3
.ox_id
;
5699 rtv_rsp
= (struct RTV_RSP
*)pcmd
;
5701 /* populate RTV payload */
5702 rtv_rsp
->ratov
= cpu_to_be32(phba
->fc_ratov
* 1000); /* report msecs */
5703 rtv_rsp
->edtov
= cpu_to_be32(phba
->fc_edtov
);
5704 bf_set(qtov_edtovres
, rtv_rsp
, phba
->fc_edtovResol
? 1 : 0);
5705 bf_set(qtov_rttov
, rtv_rsp
, 0); /* Field is for FC ONLY */
5706 rtv_rsp
->qtov
= cpu_to_be32(rtv_rsp
->qtov
);
5708 /* Xmit ELS RLS ACC response tag <ulpIoTag> */
5709 lpfc_printf_vlog(ndlp
->vport
, KERN_INFO
, LOG_ELS
,
5710 "2875 Xmit ELS RTV ACC response tag x%x xri x%x, "
5711 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x, "
5712 "Data: x%x x%x x%x\n",
5713 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
5714 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
5716 rtv_rsp
->ratov
, rtv_rsp
->edtov
, rtv_rsp
->qtov
);
5717 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
5718 phba
->fc_stat
.elsXmitACC
++;
5719 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) == IOCB_ERROR
)
5720 lpfc_els_free_iocb(phba
, elsiocb
);
5724 /* issue rejection response */
5725 stat
.un
.b
.lsRjtRsvd0
= 0;
5726 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
5727 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_CANT_GIVE_DATA
;
5728 stat
.un
.b
.vendorUnique
= 0;
5729 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
, NULL
);
5733 /* lpfc_els_rcv_rps - Process an unsolicited rps iocb
5734 * @vport: pointer to a host virtual N_Port data structure.
5735 * @cmdiocb: pointer to lpfc command iocb data structure.
5736 * @ndlp: pointer to a node-list data structure.
5738 * This routine processes Read Port Status (RPS) IOCB received as an
5739 * ELS unsolicited event. It first checks the remote port state. If the
5740 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
5741 * state, it invokes the lpfc_els_rsp_reject() routine to send the reject
5742 * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command
5743 * for reading the HBA link statistics. It is for the callback function,
5744 * lpfc_els_rsp_rps_acc(), set to the MBX_READ_LNK_STAT mailbox command
5745 * to actually sending out RPS Accept (ACC) response.
5748 * 0 - Successfully processed rps iocb (currently always return 0)
5751 lpfc_els_rcv_rps(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5752 struct lpfc_nodelist
*ndlp
)
5754 struct lpfc_hba
*phba
= vport
->phba
;
5758 struct lpfc_dmabuf
*pcmd
;
5762 if ((ndlp
->nlp_state
!= NLP_STE_UNMAPPED_NODE
) &&
5763 (ndlp
->nlp_state
!= NLP_STE_MAPPED_NODE
))
5764 /* reject the unsolicited RPS request and done with it */
5767 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
5768 lp
= (uint32_t *) pcmd
->virt
;
5769 flag
= (be32_to_cpu(*lp
++) & 0xf);
5773 ((flag
== 1) && (be32_to_cpu(rps
->un
.portNum
) == 0)) ||
5774 ((flag
== 2) && (memcmp(&rps
->un
.portName
, &vport
->fc_portname
,
5775 sizeof(struct lpfc_name
)) == 0))) {
5777 printk("Fix me....\n");
5779 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_ATOMIC
);
5781 lpfc_read_lnk_stat(phba
, mbox
);
5782 mbox
->context1
= (void *)((unsigned long)
5783 ((cmdiocb
->iocb
.unsli3
.rcvsli3
.ox_id
<< 16) |
5784 cmdiocb
->iocb
.ulpContext
)); /* rx_id */
5785 mbox
->context2
= lpfc_nlp_get(ndlp
);
5786 mbox
->vport
= vport
;
5787 mbox
->mbox_cmpl
= lpfc_els_rsp_rps_acc
;
5788 if (lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
)
5789 != MBX_NOT_FINISHED
)
5790 /* Mbox completion will send ELS Response */
5792 /* Decrement reference count used for the failed mbox
5796 mempool_free(mbox
, phba
->mbox_mem_pool
);
5801 /* issue rejection response */
5802 stat
.un
.b
.lsRjtRsvd0
= 0;
5803 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
5804 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_CANT_GIVE_DATA
;
5805 stat
.un
.b
.vendorUnique
= 0;
5806 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
, NULL
);
5810 /* lpfc_issue_els_rrq - Process an unsolicited rps iocb
5811 * @vport: pointer to a host virtual N_Port data structure.
5812 * @ndlp: pointer to a node-list data structure.
5813 * @did: DID of the target.
5814 * @rrq: Pointer to the rrq struct.
5816 * Build a ELS RRQ command and send it to the target. If the issue_iocb is
5817 * Successful the the completion handler will clear the RRQ.
5820 * 0 - Successfully sent rrq els iocb.
5821 * 1 - Failed to send rrq els iocb.
5824 lpfc_issue_els_rrq(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
5825 uint32_t did
, struct lpfc_node_rrq
*rrq
)
5827 struct lpfc_hba
*phba
= vport
->phba
;
5828 struct RRQ
*els_rrq
;
5830 struct lpfc_iocbq
*elsiocb
;
5836 if (ndlp
!= rrq
->ndlp
)
5838 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
))
5841 /* If ndlp is not NULL, we will bump the reference count on it */
5842 cmdsize
= (sizeof(uint32_t) + sizeof(struct RRQ
));
5843 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, 0, ndlp
, did
,
5848 icmd
= &elsiocb
->iocb
;
5849 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
5851 /* For RRQ request, remainder of payload is Exchange IDs */
5852 *((uint32_t *) (pcmd
)) = ELS_CMD_RRQ
;
5853 pcmd
+= sizeof(uint32_t);
5854 els_rrq
= (struct RRQ
*) pcmd
;
5856 bf_set(rrq_oxid
, els_rrq
, phba
->sli4_hba
.xri_ids
[rrq
->xritag
]);
5857 bf_set(rrq_rxid
, els_rrq
, rrq
->rxid
);
5858 bf_set(rrq_did
, els_rrq
, vport
->fc_myDID
);
5859 els_rrq
->rrq
= cpu_to_be32(els_rrq
->rrq
);
5860 els_rrq
->rrq_exchg
= cpu_to_be32(els_rrq
->rrq_exchg
);
5863 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
5864 "Issue RRQ: did:x%x",
5865 did
, rrq
->xritag
, rrq
->rxid
);
5866 elsiocb
->context_un
.rrq
= rrq
;
5867 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rrq
;
5868 ret
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
5870 if (ret
== IOCB_ERROR
) {
5871 lpfc_els_free_iocb(phba
, elsiocb
);
5878 * lpfc_send_rrq - Sends ELS RRQ if needed.
5879 * @phba: pointer to lpfc hba data structure.
5880 * @rrq: pointer to the active rrq.
5882 * This routine will call the lpfc_issue_els_rrq if the rrq is
5883 * still active for the xri. If this function returns a failure then
5884 * the caller needs to clean up the RRQ by calling lpfc_clr_active_rrq.
5886 * Returns 0 Success.
5890 lpfc_send_rrq(struct lpfc_hba
*phba
, struct lpfc_node_rrq
*rrq
)
5892 struct lpfc_nodelist
*ndlp
= lpfc_findnode_did(rrq
->vport
,
5894 if (lpfc_test_rrq_active(phba
, ndlp
, rrq
->xritag
))
5895 return lpfc_issue_els_rrq(rrq
->vport
, ndlp
,
5902 * lpfc_els_rsp_rpl_acc - Issue an accept rpl els command
5903 * @vport: pointer to a host virtual N_Port data structure.
5904 * @cmdsize: size of the ELS command.
5905 * @oldiocb: pointer to the original lpfc command iocb data structure.
5906 * @ndlp: pointer to a node-list data structure.
5908 * This routine issuees an Accept (ACC) Read Port List (RPL) ELS command.
5909 * It is to be called by the lpfc_els_rcv_rpl() routine to accept the RPL.
5911 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
5912 * will be incremented by 1 for holding the ndlp and the reference to ndlp
5913 * will be stored into the context1 field of the IOCB for the completion
5914 * callback function to the RPL Accept Response ELS command.
5917 * 0 - Successfully issued ACC RPL ELS command
5918 * 1 - Failed to issue ACC RPL ELS command
5921 lpfc_els_rsp_rpl_acc(struct lpfc_vport
*vport
, uint16_t cmdsize
,
5922 struct lpfc_iocbq
*oldiocb
, struct lpfc_nodelist
*ndlp
)
5924 struct lpfc_hba
*phba
= vport
->phba
;
5925 IOCB_t
*icmd
, *oldcmd
;
5927 struct lpfc_iocbq
*elsiocb
;
5930 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
, ndlp
,
5931 ndlp
->nlp_DID
, ELS_CMD_ACC
);
5936 icmd
= &elsiocb
->iocb
;
5937 oldcmd
= &oldiocb
->iocb
;
5938 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
5939 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
5941 pcmd
= (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
5942 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
5943 pcmd
+= sizeof(uint16_t);
5944 *((uint16_t *)(pcmd
)) = be16_to_cpu(cmdsize
);
5945 pcmd
+= sizeof(uint16_t);
5947 /* Setup the RPL ACC payload */
5948 rpl_rsp
.listLen
= be32_to_cpu(1);
5950 rpl_rsp
.port_num_blk
.portNum
= 0;
5951 rpl_rsp
.port_num_blk
.portID
= be32_to_cpu(vport
->fc_myDID
);
5952 memcpy(&rpl_rsp
.port_num_blk
.portName
, &vport
->fc_portname
,
5953 sizeof(struct lpfc_name
));
5954 memcpy(pcmd
, &rpl_rsp
, cmdsize
- sizeof(uint32_t));
5955 /* Xmit ELS RPL ACC response tag <ulpIoTag> */
5956 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
5957 "0120 Xmit ELS RPL ACC response tag x%x "
5958 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
5960 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
5961 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
5963 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
5964 phba
->fc_stat
.elsXmitACC
++;
5965 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) ==
5967 lpfc_els_free_iocb(phba
, elsiocb
);
5974 * lpfc_els_rcv_rpl - Process an unsolicited rpl iocb
5975 * @vport: pointer to a host virtual N_Port data structure.
5976 * @cmdiocb: pointer to lpfc command iocb data structure.
5977 * @ndlp: pointer to a node-list data structure.
5979 * This routine processes Read Port List (RPL) IOCB received as an ELS
5980 * unsolicited event. It first checks the remote port state. If the remote
5981 * port is not in NLP_STE_UNMAPPED_NODE and NLP_STE_MAPPED_NODE states, it
5982 * invokes the lpfc_els_rsp_reject() routine to send reject response.
5983 * Otherwise, this routine then invokes the lpfc_els_rsp_rpl_acc() routine
5984 * to accept the RPL.
5987 * 0 - Successfully processed rpl iocb (currently always return 0)
5990 lpfc_els_rcv_rpl(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5991 struct lpfc_nodelist
*ndlp
)
5993 struct lpfc_dmabuf
*pcmd
;
6000 if ((ndlp
->nlp_state
!= NLP_STE_UNMAPPED_NODE
) &&
6001 (ndlp
->nlp_state
!= NLP_STE_MAPPED_NODE
)) {
6002 /* issue rejection response */
6003 stat
.un
.b
.lsRjtRsvd0
= 0;
6004 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
6005 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_CANT_GIVE_DATA
;
6006 stat
.un
.b
.vendorUnique
= 0;
6007 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
,
6009 /* rejected the unsolicited RPL request and done with it */
6013 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
6014 lp
= (uint32_t *) pcmd
->virt
;
6015 rpl
= (RPL
*) (lp
+ 1);
6016 maxsize
= be32_to_cpu(rpl
->maxsize
);
6018 /* We support only one port */
6019 if ((rpl
->index
== 0) &&
6021 ((maxsize
* sizeof(uint32_t)) >= sizeof(RPL_RSP
)))) {
6022 cmdsize
= sizeof(uint32_t) + sizeof(RPL_RSP
);
6024 cmdsize
= sizeof(uint32_t) + maxsize
* sizeof(uint32_t);
6026 lpfc_els_rsp_rpl_acc(vport
, cmdsize
, cmdiocb
, ndlp
);
6032 * lpfc_els_rcv_farp - Process an unsolicited farp request els command
6033 * @vport: pointer to a virtual N_Port data structure.
6034 * @cmdiocb: pointer to lpfc command iocb data structure.
6035 * @ndlp: pointer to a node-list data structure.
6037 * This routine processes Fibre Channel Address Resolution Protocol
6038 * (FARP) Request IOCB received as an ELS unsolicited event. Currently,
6039 * the lpfc driver only supports matching on WWPN or WWNN for FARP. As such,
6040 * FARP_MATCH_PORT flag and FARP_MATCH_NODE flag are checked against the
6041 * Match Flag in the FARP request IOCB: if FARP_MATCH_PORT flag is set, the
6042 * remote PortName is compared against the FC PortName stored in the @vport
6043 * data structure; if FARP_MATCH_NODE flag is set, the remote NodeName is
6044 * compared against the FC NodeName stored in the @vport data structure.
6045 * If any of these matches and the FARP_REQUEST_FARPR flag is set in the
6046 * FARP request IOCB Response Flag, the lpfc_issue_els_farpr() routine is
6047 * invoked to send out FARP Response to the remote node. Before sending the
6048 * FARP Response, however, the FARP_REQUEST_PLOGI flag is check in the FARP
6049 * request IOCB Response Flag and, if it is set, the lpfc_issue_els_plogi()
6050 * routine is invoked to log into the remote port first.
6053 * 0 - Either the FARP Match Mode not supported or successfully processed
6056 lpfc_els_rcv_farp(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
6057 struct lpfc_nodelist
*ndlp
)
6059 struct lpfc_dmabuf
*pcmd
;
6063 uint32_t cmd
, cnt
, did
;
6065 icmd
= &cmdiocb
->iocb
;
6066 did
= icmd
->un
.elsreq64
.remoteID
;
6067 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
6068 lp
= (uint32_t *) pcmd
->virt
;
6072 /* FARP-REQ received from DID <did> */
6073 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
6074 "0601 FARP-REQ received from DID x%x\n", did
);
6075 /* We will only support match on WWPN or WWNN */
6076 if (fp
->Mflags
& ~(FARP_MATCH_NODE
| FARP_MATCH_PORT
)) {
6081 /* If this FARP command is searching for my portname */
6082 if (fp
->Mflags
& FARP_MATCH_PORT
) {
6083 if (memcmp(&fp
->RportName
, &vport
->fc_portname
,
6084 sizeof(struct lpfc_name
)) == 0)
6088 /* If this FARP command is searching for my nodename */
6089 if (fp
->Mflags
& FARP_MATCH_NODE
) {
6090 if (memcmp(&fp
->RnodeName
, &vport
->fc_nodename
,
6091 sizeof(struct lpfc_name
)) == 0)
6096 if ((ndlp
->nlp_state
== NLP_STE_UNMAPPED_NODE
) ||
6097 (ndlp
->nlp_state
== NLP_STE_MAPPED_NODE
)) {
6098 /* Log back into the node before sending the FARP. */
6099 if (fp
->Rflags
& FARP_REQUEST_PLOGI
) {
6100 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
6101 lpfc_nlp_set_state(vport
, ndlp
,
6102 NLP_STE_PLOGI_ISSUE
);
6103 lpfc_issue_els_plogi(vport
, ndlp
->nlp_DID
, 0);
6106 /* Send a FARP response to that node */
6107 if (fp
->Rflags
& FARP_REQUEST_FARPR
)
6108 lpfc_issue_els_farpr(vport
, did
, 0);
6115 * lpfc_els_rcv_farpr - Process an unsolicited farp response iocb
6116 * @vport: pointer to a host virtual N_Port data structure.
6117 * @cmdiocb: pointer to lpfc command iocb data structure.
6118 * @ndlp: pointer to a node-list data structure.
6120 * This routine processes Fibre Channel Address Resolution Protocol
6121 * Response (FARPR) IOCB received as an ELS unsolicited event. It simply
6122 * invokes the lpfc_els_rsp_acc() routine to the remote node to accept
6123 * the FARP response request.
6126 * 0 - Successfully processed FARPR IOCB (currently always return 0)
6129 lpfc_els_rcv_farpr(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
6130 struct lpfc_nodelist
*ndlp
)
6132 struct lpfc_dmabuf
*pcmd
;
6137 icmd
= &cmdiocb
->iocb
;
6138 did
= icmd
->un
.elsreq64
.remoteID
;
6139 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
6140 lp
= (uint32_t *) pcmd
->virt
;
6143 /* FARP-RSP received from DID <did> */
6144 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
6145 "0600 FARP-RSP received from DID x%x\n", did
);
6146 /* ACCEPT the Farp resp request */
6147 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
, ndlp
, NULL
);
6153 * lpfc_els_rcv_fan - Process an unsolicited fan iocb command
6154 * @vport: pointer to a host virtual N_Port data structure.
6155 * @cmdiocb: pointer to lpfc command iocb data structure.
6156 * @fan_ndlp: pointer to a node-list data structure.
6158 * This routine processes a Fabric Address Notification (FAN) IOCB
6159 * command received as an ELS unsolicited event. The FAN ELS command will
6160 * only be processed on a physical port (i.e., the @vport represents the
6161 * physical port). The fabric NodeName and PortName from the FAN IOCB are
6162 * compared against those in the phba data structure. If any of those is
6163 * different, the lpfc_initial_flogi() routine is invoked to initialize
6164 * Fabric Login (FLOGI) to the fabric to start the discover over. Otherwise,
6165 * if both of those are identical, the lpfc_issue_fabric_reglogin() routine
6166 * is invoked to register login to the fabric.
6169 * 0 - Successfully processed fan iocb (currently always return 0).
6172 lpfc_els_rcv_fan(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
6173 struct lpfc_nodelist
*fan_ndlp
)
6175 struct lpfc_hba
*phba
= vport
->phba
;
6179 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
, "0265 FAN received\n");
6180 lp
= (uint32_t *)((struct lpfc_dmabuf
*)cmdiocb
->context2
)->virt
;
6182 /* FAN received; Fan does not have a reply sequence */
6183 if ((vport
== phba
->pport
) &&
6184 (vport
->port_state
== LPFC_LOCAL_CFG_LINK
)) {
6185 if ((memcmp(&phba
->fc_fabparam
.nodeName
, &fp
->FnodeName
,
6186 sizeof(struct lpfc_name
))) ||
6187 (memcmp(&phba
->fc_fabparam
.portName
, &fp
->FportName
,
6188 sizeof(struct lpfc_name
)))) {
6189 /* This port has switched fabrics. FLOGI is required */
6190 lpfc_issue_init_vfi(vport
);
6192 /* FAN verified - skip FLOGI */
6193 vport
->fc_myDID
= vport
->fc_prevDID
;
6194 if (phba
->sli_rev
< LPFC_SLI_REV4
)
6195 lpfc_issue_fabric_reglogin(vport
);
6197 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
6198 "3138 Need register VFI: (x%x/%x)\n",
6199 vport
->fc_prevDID
, vport
->fc_myDID
);
6200 lpfc_issue_reg_vfi(vport
);
6208 * lpfc_els_timeout - Handler funciton to the els timer
6209 * @ptr: holder for the timer function associated data.
6211 * This routine is invoked by the ELS timer after timeout. It posts the ELS
6212 * timer timeout event by setting the WORKER_ELS_TMO bit to the work port
6213 * event bitmap and then invokes the lpfc_worker_wake_up() routine to wake
6214 * up the worker thread. It is for the worker thread to invoke the routine
6215 * lpfc_els_timeout_handler() to work on the posted event WORKER_ELS_TMO.
6218 lpfc_els_timeout(unsigned long ptr
)
6220 struct lpfc_vport
*vport
= (struct lpfc_vport
*) ptr
;
6221 struct lpfc_hba
*phba
= vport
->phba
;
6222 uint32_t tmo_posted
;
6223 unsigned long iflag
;
6225 spin_lock_irqsave(&vport
->work_port_lock
, iflag
);
6226 tmo_posted
= vport
->work_port_events
& WORKER_ELS_TMO
;
6227 if ((!tmo_posted
) && (!(vport
->load_flag
& FC_UNLOADING
)))
6228 vport
->work_port_events
|= WORKER_ELS_TMO
;
6229 spin_unlock_irqrestore(&vport
->work_port_lock
, iflag
);
6231 if ((!tmo_posted
) && (!(vport
->load_flag
& FC_UNLOADING
)))
6232 lpfc_worker_wake_up(phba
);
6238 * lpfc_els_timeout_handler - Process an els timeout event
6239 * @vport: pointer to a virtual N_Port data structure.
6241 * This routine is the actual handler function that processes an ELS timeout
6242 * event. It walks the ELS ring to get and abort all the IOCBs (except the
6243 * ABORT/CLOSE/FARP/FARPR/FDISC), which are associated with the @vport by
6244 * invoking the lpfc_sli_issue_abort_iotag() routine.
6247 lpfc_els_timeout_handler(struct lpfc_vport
*vport
)
6249 struct lpfc_hba
*phba
= vport
->phba
;
6250 struct lpfc_sli_ring
*pring
;
6251 struct lpfc_iocbq
*tmp_iocb
, *piocb
;
6253 struct lpfc_dmabuf
*pcmd
;
6254 uint32_t els_command
= 0;
6256 uint32_t remote_ID
= 0xffffffff;
6257 LIST_HEAD(abort_list
);
6260 timeout
= (uint32_t)(phba
->fc_ratov
<< 1);
6262 pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
6263 if ((phba
->pport
->load_flag
& FC_UNLOADING
))
6265 spin_lock_irq(&phba
->hbalock
);
6266 if (phba
->sli_rev
== LPFC_SLI_REV4
)
6267 spin_lock(&pring
->ring_lock
);
6269 if ((phba
->pport
->load_flag
& FC_UNLOADING
)) {
6270 if (phba
->sli_rev
== LPFC_SLI_REV4
)
6271 spin_unlock(&pring
->ring_lock
);
6272 spin_unlock_irq(&phba
->hbalock
);
6276 list_for_each_entry_safe(piocb
, tmp_iocb
, &pring
->txcmplq
, list
) {
6279 if ((piocb
->iocb_flag
& LPFC_IO_LIBDFC
) != 0 ||
6280 piocb
->iocb
.ulpCommand
== CMD_ABORT_XRI_CN
||
6281 piocb
->iocb
.ulpCommand
== CMD_CLOSE_XRI_CN
)
6284 if (piocb
->vport
!= vport
)
6287 pcmd
= (struct lpfc_dmabuf
*) piocb
->context2
;
6289 els_command
= *(uint32_t *) (pcmd
->virt
);
6291 if (els_command
== ELS_CMD_FARP
||
6292 els_command
== ELS_CMD_FARPR
||
6293 els_command
== ELS_CMD_FDISC
)
6296 if (piocb
->drvrTimeout
> 0) {
6297 if (piocb
->drvrTimeout
>= timeout
)
6298 piocb
->drvrTimeout
-= timeout
;
6300 piocb
->drvrTimeout
= 0;
6304 remote_ID
= 0xffffffff;
6305 if (cmd
->ulpCommand
!= CMD_GEN_REQUEST64_CR
)
6306 remote_ID
= cmd
->un
.elsreq64
.remoteID
;
6308 struct lpfc_nodelist
*ndlp
;
6309 ndlp
= __lpfc_findnode_rpi(vport
, cmd
->ulpContext
);
6310 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
))
6311 remote_ID
= ndlp
->nlp_DID
;
6313 list_add_tail(&piocb
->dlist
, &abort_list
);
6315 if (phba
->sli_rev
== LPFC_SLI_REV4
)
6316 spin_unlock(&pring
->ring_lock
);
6317 spin_unlock_irq(&phba
->hbalock
);
6319 list_for_each_entry_safe(piocb
, tmp_iocb
, &abort_list
, dlist
) {
6321 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
6322 "0127 ELS timeout Data: x%x x%x x%x "
6323 "x%x\n", els_command
,
6324 remote_ID
, cmd
->ulpCommand
, cmd
->ulpIoTag
);
6325 spin_lock_irq(&phba
->hbalock
);
6326 list_del_init(&piocb
->dlist
);
6327 lpfc_sli_issue_abort_iotag(phba
, pring
, piocb
);
6328 spin_unlock_irq(&phba
->hbalock
);
6331 if (!list_empty(&phba
->sli
.ring
[LPFC_ELS_RING
].txcmplq
))
6332 if (!(phba
->pport
->load_flag
& FC_UNLOADING
))
6333 mod_timer(&vport
->els_tmofunc
,
6334 jiffies
+ msecs_to_jiffies(1000 * timeout
));
6338 * lpfc_els_flush_cmd - Clean up the outstanding els commands to a vport
6339 * @vport: pointer to a host virtual N_Port data structure.
6341 * This routine is used to clean up all the outstanding ELS commands on a
6342 * @vport. It first aborts the @vport by invoking lpfc_fabric_abort_vport()
6343 * routine. After that, it walks the ELS transmit queue to remove all the
6344 * IOCBs with the @vport other than the QUE_RING and ABORT/CLOSE IOCBs. For
6345 * the IOCBs with a non-NULL completion callback function, the callback
6346 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and
6347 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs with a NULL completion
6348 * callback function, the IOCB will simply be released. Finally, it walks
6349 * the ELS transmit completion queue to issue an abort IOCB to any transmit
6350 * completion queue IOCB that is associated with the @vport and is not
6351 * an IOCB from libdfc (i.e., the management plane IOCBs that are not
6352 * part of the discovery state machine) out to HBA by invoking the
6353 * lpfc_sli_issue_abort_iotag() routine. Note that this function issues the
6354 * abort IOCB to any transmit completion queueed IOCB, it does not guarantee
6355 * the IOCBs are aborted when this function returns.
6358 lpfc_els_flush_cmd(struct lpfc_vport
*vport
)
6360 LIST_HEAD(abort_list
);
6361 struct lpfc_hba
*phba
= vport
->phba
;
6362 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
6363 struct lpfc_iocbq
*tmp_iocb
, *piocb
;
6366 lpfc_fabric_abort_vport(vport
);
6368 * For SLI3, only the hbalock is required. But SLI4 needs to coordinate
6369 * with the ring insert operation. Because lpfc_sli_issue_abort_iotag
6370 * ultimately grabs the ring_lock, the driver must splice the list into
6371 * a working list and release the locks before calling the abort.
6373 spin_lock_irq(&phba
->hbalock
);
6374 if (phba
->sli_rev
== LPFC_SLI_REV4
)
6375 spin_lock(&pring
->ring_lock
);
6377 list_for_each_entry_safe(piocb
, tmp_iocb
, &pring
->txcmplq
, list
) {
6378 if (piocb
->iocb_flag
& LPFC_IO_LIBDFC
)
6381 if (piocb
->vport
!= vport
)
6383 list_add_tail(&piocb
->dlist
, &abort_list
);
6385 if (phba
->sli_rev
== LPFC_SLI_REV4
)
6386 spin_unlock(&pring
->ring_lock
);
6387 spin_unlock_irq(&phba
->hbalock
);
6388 /* Abort each iocb on the aborted list and remove the dlist links. */
6389 list_for_each_entry_safe(piocb
, tmp_iocb
, &abort_list
, dlist
) {
6390 spin_lock_irq(&phba
->hbalock
);
6391 list_del_init(&piocb
->dlist
);
6392 lpfc_sli_issue_abort_iotag(phba
, pring
, piocb
);
6393 spin_unlock_irq(&phba
->hbalock
);
6395 if (!list_empty(&abort_list
))
6396 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
6397 "3387 abort list for txq not empty\n");
6398 INIT_LIST_HEAD(&abort_list
);
6400 spin_lock_irq(&phba
->hbalock
);
6401 if (phba
->sli_rev
== LPFC_SLI_REV4
)
6402 spin_lock(&pring
->ring_lock
);
6404 list_for_each_entry_safe(piocb
, tmp_iocb
, &pring
->txq
, list
) {
6407 if (piocb
->iocb_flag
& LPFC_IO_LIBDFC
) {
6411 /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */
6412 if (cmd
->ulpCommand
== CMD_QUE_RING_BUF_CN
||
6413 cmd
->ulpCommand
== CMD_QUE_RING_BUF64_CN
||
6414 cmd
->ulpCommand
== CMD_CLOSE_XRI_CN
||
6415 cmd
->ulpCommand
== CMD_ABORT_XRI_CN
)
6418 if (piocb
->vport
!= vport
)
6421 list_del_init(&piocb
->list
);
6422 list_add_tail(&piocb
->list
, &abort_list
);
6424 if (phba
->sli_rev
== LPFC_SLI_REV4
)
6425 spin_unlock(&pring
->ring_lock
);
6426 spin_unlock_irq(&phba
->hbalock
);
6428 /* Cancell all the IOCBs from the completions list */
6429 lpfc_sli_cancel_iocbs(phba
, &abort_list
,
6430 IOSTAT_LOCAL_REJECT
, IOERR_SLI_ABORTED
);
6436 * lpfc_els_flush_all_cmd - Clean up all the outstanding els commands to a HBA
6437 * @phba: pointer to lpfc hba data structure.
6439 * This routine is used to clean up all the outstanding ELS commands on a
6440 * @phba. It first aborts the @phba by invoking the lpfc_fabric_abort_hba()
6441 * routine. After that, it walks the ELS transmit queue to remove all the
6442 * IOCBs to the @phba other than the QUE_RING and ABORT/CLOSE IOCBs. For
6443 * the IOCBs with the completion callback function associated, the callback
6444 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and
6445 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs without the completion
6446 * callback function associated, the IOCB will simply be released. Finally,
6447 * it walks the ELS transmit completion queue to issue an abort IOCB to any
6448 * transmit completion queue IOCB that is not an IOCB from libdfc (i.e., the
6449 * management plane IOCBs that are not part of the discovery state machine)
6450 * out to HBA by invoking the lpfc_sli_issue_abort_iotag() routine.
6453 lpfc_els_flush_all_cmd(struct lpfc_hba
*phba
)
6455 struct lpfc_vport
*vport
;
6456 list_for_each_entry(vport
, &phba
->port_list
, listentry
)
6457 lpfc_els_flush_cmd(vport
);
6463 * lpfc_send_els_failure_event - Posts an ELS command failure event
6464 * @phba: Pointer to hba context object.
6465 * @cmdiocbp: Pointer to command iocb which reported error.
6466 * @rspiocbp: Pointer to response iocb which reported error.
6468 * This function sends an event when there is an ELS command
6472 lpfc_send_els_failure_event(struct lpfc_hba
*phba
,
6473 struct lpfc_iocbq
*cmdiocbp
,
6474 struct lpfc_iocbq
*rspiocbp
)
6476 struct lpfc_vport
*vport
= cmdiocbp
->vport
;
6477 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
6478 struct lpfc_lsrjt_event lsrjt_event
;
6479 struct lpfc_fabric_event_header fabric_event
;
6481 struct lpfc_nodelist
*ndlp
;
6484 ndlp
= cmdiocbp
->context1
;
6485 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
))
6488 if (rspiocbp
->iocb
.ulpStatus
== IOSTAT_LS_RJT
) {
6489 lsrjt_event
.header
.event_type
= FC_REG_ELS_EVENT
;
6490 lsrjt_event
.header
.subcategory
= LPFC_EVENT_LSRJT_RCV
;
6491 memcpy(lsrjt_event
.header
.wwpn
, &ndlp
->nlp_portname
,
6492 sizeof(struct lpfc_name
));
6493 memcpy(lsrjt_event
.header
.wwnn
, &ndlp
->nlp_nodename
,
6494 sizeof(struct lpfc_name
));
6495 pcmd
= (uint32_t *) (((struct lpfc_dmabuf
*)
6496 cmdiocbp
->context2
)->virt
);
6497 lsrjt_event
.command
= (pcmd
!= NULL
) ? *pcmd
: 0;
6498 stat
.un
.lsRjtError
= be32_to_cpu(rspiocbp
->iocb
.un
.ulpWord
[4]);
6499 lsrjt_event
.reason_code
= stat
.un
.b
.lsRjtRsnCode
;
6500 lsrjt_event
.explanation
= stat
.un
.b
.lsRjtRsnCodeExp
;
6501 fc_host_post_vendor_event(shost
,
6502 fc_get_event_number(),
6503 sizeof(lsrjt_event
),
6504 (char *)&lsrjt_event
,
6508 if ((rspiocbp
->iocb
.ulpStatus
== IOSTAT_NPORT_BSY
) ||
6509 (rspiocbp
->iocb
.ulpStatus
== IOSTAT_FABRIC_BSY
)) {
6510 fabric_event
.event_type
= FC_REG_FABRIC_EVENT
;
6511 if (rspiocbp
->iocb
.ulpStatus
== IOSTAT_NPORT_BSY
)
6512 fabric_event
.subcategory
= LPFC_EVENT_PORT_BUSY
;
6514 fabric_event
.subcategory
= LPFC_EVENT_FABRIC_BUSY
;
6515 memcpy(fabric_event
.wwpn
, &ndlp
->nlp_portname
,
6516 sizeof(struct lpfc_name
));
6517 memcpy(fabric_event
.wwnn
, &ndlp
->nlp_nodename
,
6518 sizeof(struct lpfc_name
));
6519 fc_host_post_vendor_event(shost
,
6520 fc_get_event_number(),
6521 sizeof(fabric_event
),
6522 (char *)&fabric_event
,
6530 * lpfc_send_els_event - Posts unsolicited els event
6531 * @vport: Pointer to vport object.
6532 * @ndlp: Pointer FC node object.
6533 * @cmd: ELS command code.
6535 * This function posts an event when there is an incoming
6536 * unsolicited ELS command.
6539 lpfc_send_els_event(struct lpfc_vport
*vport
,
6540 struct lpfc_nodelist
*ndlp
,
6543 struct lpfc_els_event_header
*els_data
= NULL
;
6544 struct lpfc_logo_event
*logo_data
= NULL
;
6545 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
6547 if (*payload
== ELS_CMD_LOGO
) {
6548 logo_data
= kmalloc(sizeof(struct lpfc_logo_event
), GFP_KERNEL
);
6550 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
6551 "0148 Failed to allocate memory "
6552 "for LOGO event\n");
6555 els_data
= &logo_data
->header
;
6557 els_data
= kmalloc(sizeof(struct lpfc_els_event_header
),
6560 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
6561 "0149 Failed to allocate memory "
6566 els_data
->event_type
= FC_REG_ELS_EVENT
;
6569 els_data
->subcategory
= LPFC_EVENT_PLOGI_RCV
;
6572 els_data
->subcategory
= LPFC_EVENT_PRLO_RCV
;
6575 els_data
->subcategory
= LPFC_EVENT_ADISC_RCV
;
6578 els_data
->subcategory
= LPFC_EVENT_LOGO_RCV
;
6579 /* Copy the WWPN in the LOGO payload */
6580 memcpy(logo_data
->logo_wwpn
, &payload
[2],
6581 sizeof(struct lpfc_name
));
6587 memcpy(els_data
->wwpn
, &ndlp
->nlp_portname
, sizeof(struct lpfc_name
));
6588 memcpy(els_data
->wwnn
, &ndlp
->nlp_nodename
, sizeof(struct lpfc_name
));
6589 if (*payload
== ELS_CMD_LOGO
) {
6590 fc_host_post_vendor_event(shost
,
6591 fc_get_event_number(),
6592 sizeof(struct lpfc_logo_event
),
6597 fc_host_post_vendor_event(shost
,
6598 fc_get_event_number(),
6599 sizeof(struct lpfc_els_event_header
),
6610 * lpfc_els_unsol_buffer - Process an unsolicited event data buffer
6611 * @phba: pointer to lpfc hba data structure.
6612 * @pring: pointer to a SLI ring.
6613 * @vport: pointer to a host virtual N_Port data structure.
6614 * @elsiocb: pointer to lpfc els command iocb data structure.
6616 * This routine is used for processing the IOCB associated with a unsolicited
6617 * event. It first determines whether there is an existing ndlp that matches
6618 * the DID from the unsolicited IOCB. If not, it will create a new one with
6619 * the DID from the unsolicited IOCB. The ELS command from the unsolicited
6620 * IOCB is then used to invoke the proper routine and to set up proper state
6621 * of the discovery state machine.
6624 lpfc_els_unsol_buffer(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
6625 struct lpfc_vport
*vport
, struct lpfc_iocbq
*elsiocb
)
6627 struct Scsi_Host
*shost
;
6628 struct lpfc_nodelist
*ndlp
;
6631 uint32_t cmd
, did
, newnode
;
6632 uint8_t rjt_exp
, rjt_err
= 0;
6633 IOCB_t
*icmd
= &elsiocb
->iocb
;
6635 if (!vport
|| !(elsiocb
->context2
))
6639 payload
= ((struct lpfc_dmabuf
*)elsiocb
->context2
)->virt
;
6641 if ((phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
) == 0)
6642 lpfc_post_buffer(phba
, pring
, 1);
6644 did
= icmd
->un
.rcvels
.remoteID
;
6645 if (icmd
->ulpStatus
) {
6646 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6647 "RCV Unsol ELS: status:x%x/x%x did:x%x",
6648 icmd
->ulpStatus
, icmd
->un
.ulpWord
[4], did
);
6652 /* Check to see if link went down during discovery */
6653 if (lpfc_els_chk_latt(vport
))
6656 /* Ignore traffic received during vport shutdown. */
6657 if (vport
->load_flag
& FC_UNLOADING
)
6660 /* If NPort discovery is delayed drop incoming ELS */
6661 if ((vport
->fc_flag
& FC_DISC_DELAYED
) &&
6662 (cmd
!= ELS_CMD_PLOGI
))
6665 ndlp
= lpfc_findnode_did(vport
, did
);
6667 /* Cannot find existing Fabric ndlp, so allocate a new one */
6668 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
6672 lpfc_nlp_init(vport
, ndlp
, did
);
6673 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
6675 if ((did
& Fabric_DID_MASK
) == Fabric_DID_MASK
)
6676 ndlp
->nlp_type
|= NLP_FABRIC
;
6677 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
6678 ndlp
= lpfc_enable_node(vport
, ndlp
,
6679 NLP_STE_UNUSED_NODE
);
6682 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
6684 if ((did
& Fabric_DID_MASK
) == Fabric_DID_MASK
)
6685 ndlp
->nlp_type
|= NLP_FABRIC
;
6686 } else if (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
) {
6687 /* This is similar to the new node path */
6688 ndlp
= lpfc_nlp_get(ndlp
);
6691 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
6695 phba
->fc_stat
.elsRcvFrame
++;
6698 * Do not process any unsolicited ELS commands
6699 * if the ndlp is in DEV_LOSS
6701 if (ndlp
->nlp_add_flag
& NLP_IN_DEV_LOSS
)
6704 elsiocb
->context1
= lpfc_nlp_get(ndlp
);
6705 elsiocb
->vport
= vport
;
6707 if ((cmd
& ELS_CMD_MASK
) == ELS_CMD_RSCN
) {
6708 cmd
&= ELS_CMD_MASK
;
6710 /* ELS command <elsCmd> received from NPORT <did> */
6711 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
6712 "0112 ELS command x%x received from NPORT x%x "
6713 "Data: x%x x%x x%x x%x\n",
6714 cmd
, did
, vport
->port_state
, vport
->fc_flag
,
6715 vport
->fc_myDID
, vport
->fc_prevDID
);
6718 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6719 "RCV PLOGI: did:x%x/ste:x%x flg:x%x",
6720 did
, vport
->port_state
, ndlp
->nlp_flag
);
6722 phba
->fc_stat
.elsRcvPLOGI
++;
6723 ndlp
= lpfc_plogi_confirm_nport(phba
, payload
, ndlp
);
6724 if (phba
->sli_rev
== LPFC_SLI_REV4
&&
6725 (phba
->pport
->fc_flag
& FC_PT2PT
)) {
6726 vport
->fc_prevDID
= vport
->fc_myDID
;
6727 /* Our DID needs to be updated before registering
6728 * the vfi. This is done in lpfc_rcv_plogi but
6729 * that is called after the reg_vfi.
6731 vport
->fc_myDID
= elsiocb
->iocb
.un
.rcvels
.parmRo
;
6732 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
6733 "3312 Remote port assigned DID x%x "
6734 "%x\n", vport
->fc_myDID
,
6738 lpfc_send_els_event(vport
, ndlp
, payload
);
6740 /* If Nport discovery is delayed, reject PLOGIs */
6741 if (vport
->fc_flag
& FC_DISC_DELAYED
) {
6742 rjt_err
= LSRJT_UNABLE_TPC
;
6743 rjt_exp
= LSEXP_NOTHING_MORE
;
6746 shost
= lpfc_shost_from_vport(vport
);
6747 if (vport
->port_state
< LPFC_DISC_AUTH
) {
6748 if (!(phba
->pport
->fc_flag
& FC_PT2PT
) ||
6749 (phba
->pport
->fc_flag
& FC_PT2PT_PLOGI
)) {
6750 rjt_err
= LSRJT_UNABLE_TPC
;
6751 rjt_exp
= LSEXP_NOTHING_MORE
;
6754 /* We get here, and drop thru, if we are PT2PT with
6755 * another NPort and the other side has initiated
6756 * the PLOGI before responding to our FLOGI.
6758 if (phba
->sli_rev
== LPFC_SLI_REV4
&&
6759 (phba
->fc_topology_changed
||
6760 vport
->fc_myDID
!= vport
->fc_prevDID
)) {
6761 lpfc_unregister_fcf_prep(phba
);
6762 spin_lock_irq(shost
->host_lock
);
6763 vport
->fc_flag
&= ~FC_VFI_REGISTERED
;
6764 spin_unlock_irq(shost
->host_lock
);
6765 phba
->fc_topology_changed
= 0;
6766 lpfc_issue_reg_vfi(vport
);
6770 spin_lock_irq(shost
->host_lock
);
6771 ndlp
->nlp_flag
&= ~NLP_TARGET_REMOVE
;
6772 spin_unlock_irq(shost
->host_lock
);
6774 lpfc_disc_state_machine(vport
, ndlp
, elsiocb
,
6779 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6780 "RCV FLOGI: did:x%x/ste:x%x flg:x%x",
6781 did
, vport
->port_state
, ndlp
->nlp_flag
);
6783 phba
->fc_stat
.elsRcvFLOGI
++;
6784 lpfc_els_rcv_flogi(vport
, elsiocb
, ndlp
);
6789 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6790 "RCV LOGO: did:x%x/ste:x%x flg:x%x",
6791 did
, vport
->port_state
, ndlp
->nlp_flag
);
6793 phba
->fc_stat
.elsRcvLOGO
++;
6794 lpfc_send_els_event(vport
, ndlp
, payload
);
6795 if (vport
->port_state
< LPFC_DISC_AUTH
) {
6796 rjt_err
= LSRJT_UNABLE_TPC
;
6797 rjt_exp
= LSEXP_NOTHING_MORE
;
6800 lpfc_disc_state_machine(vport
, ndlp
, elsiocb
, NLP_EVT_RCV_LOGO
);
6803 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6804 "RCV PRLO: did:x%x/ste:x%x flg:x%x",
6805 did
, vport
->port_state
, ndlp
->nlp_flag
);
6807 phba
->fc_stat
.elsRcvPRLO
++;
6808 lpfc_send_els_event(vport
, ndlp
, payload
);
6809 if (vport
->port_state
< LPFC_DISC_AUTH
) {
6810 rjt_err
= LSRJT_UNABLE_TPC
;
6811 rjt_exp
= LSEXP_NOTHING_MORE
;
6814 lpfc_disc_state_machine(vport
, ndlp
, elsiocb
, NLP_EVT_RCV_PRLO
);
6817 phba
->fc_stat
.elsRcvRSCN
++;
6818 lpfc_els_rcv_rscn(vport
, elsiocb
, ndlp
);
6823 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6824 "RCV ADISC: did:x%x/ste:x%x flg:x%x",
6825 did
, vport
->port_state
, ndlp
->nlp_flag
);
6827 lpfc_send_els_event(vport
, ndlp
, payload
);
6828 phba
->fc_stat
.elsRcvADISC
++;
6829 if (vport
->port_state
< LPFC_DISC_AUTH
) {
6830 rjt_err
= LSRJT_UNABLE_TPC
;
6831 rjt_exp
= LSEXP_NOTHING_MORE
;
6834 lpfc_disc_state_machine(vport
, ndlp
, elsiocb
,
6838 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6839 "RCV PDISC: did:x%x/ste:x%x flg:x%x",
6840 did
, vport
->port_state
, ndlp
->nlp_flag
);
6842 phba
->fc_stat
.elsRcvPDISC
++;
6843 if (vport
->port_state
< LPFC_DISC_AUTH
) {
6844 rjt_err
= LSRJT_UNABLE_TPC
;
6845 rjt_exp
= LSEXP_NOTHING_MORE
;
6848 lpfc_disc_state_machine(vport
, ndlp
, elsiocb
,
6852 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6853 "RCV FARPR: did:x%x/ste:x%x flg:x%x",
6854 did
, vport
->port_state
, ndlp
->nlp_flag
);
6856 phba
->fc_stat
.elsRcvFARPR
++;
6857 lpfc_els_rcv_farpr(vport
, elsiocb
, ndlp
);
6860 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6861 "RCV FARP: did:x%x/ste:x%x flg:x%x",
6862 did
, vport
->port_state
, ndlp
->nlp_flag
);
6864 phba
->fc_stat
.elsRcvFARP
++;
6865 lpfc_els_rcv_farp(vport
, elsiocb
, ndlp
);
6868 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6869 "RCV FAN: did:x%x/ste:x%x flg:x%x",
6870 did
, vport
->port_state
, ndlp
->nlp_flag
);
6872 phba
->fc_stat
.elsRcvFAN
++;
6873 lpfc_els_rcv_fan(vport
, elsiocb
, ndlp
);
6876 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6877 "RCV PRLI: did:x%x/ste:x%x flg:x%x",
6878 did
, vport
->port_state
, ndlp
->nlp_flag
);
6880 phba
->fc_stat
.elsRcvPRLI
++;
6881 if (vport
->port_state
< LPFC_DISC_AUTH
) {
6882 rjt_err
= LSRJT_UNABLE_TPC
;
6883 rjt_exp
= LSEXP_NOTHING_MORE
;
6886 lpfc_disc_state_machine(vport
, ndlp
, elsiocb
, NLP_EVT_RCV_PRLI
);
6889 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6890 "RCV LIRR: did:x%x/ste:x%x flg:x%x",
6891 did
, vport
->port_state
, ndlp
->nlp_flag
);
6893 phba
->fc_stat
.elsRcvLIRR
++;
6894 lpfc_els_rcv_lirr(vport
, elsiocb
, ndlp
);
6899 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6900 "RCV RLS: did:x%x/ste:x%x flg:x%x",
6901 did
, vport
->port_state
, ndlp
->nlp_flag
);
6903 phba
->fc_stat
.elsRcvRLS
++;
6904 lpfc_els_rcv_rls(vport
, elsiocb
, ndlp
);
6909 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6910 "RCV RPS: did:x%x/ste:x%x flg:x%x",
6911 did
, vport
->port_state
, ndlp
->nlp_flag
);
6913 phba
->fc_stat
.elsRcvRPS
++;
6914 lpfc_els_rcv_rps(vport
, elsiocb
, ndlp
);
6919 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6920 "RCV RPL: did:x%x/ste:x%x flg:x%x",
6921 did
, vport
->port_state
, ndlp
->nlp_flag
);
6923 phba
->fc_stat
.elsRcvRPL
++;
6924 lpfc_els_rcv_rpl(vport
, elsiocb
, ndlp
);
6929 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6930 "RCV RNID: did:x%x/ste:x%x flg:x%x",
6931 did
, vport
->port_state
, ndlp
->nlp_flag
);
6933 phba
->fc_stat
.elsRcvRNID
++;
6934 lpfc_els_rcv_rnid(vport
, elsiocb
, ndlp
);
6939 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6940 "RCV RTV: did:x%x/ste:x%x flg:x%x",
6941 did
, vport
->port_state
, ndlp
->nlp_flag
);
6942 phba
->fc_stat
.elsRcvRTV
++;
6943 lpfc_els_rcv_rtv(vport
, elsiocb
, ndlp
);
6948 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6949 "RCV RRQ: did:x%x/ste:x%x flg:x%x",
6950 did
, vport
->port_state
, ndlp
->nlp_flag
);
6952 phba
->fc_stat
.elsRcvRRQ
++;
6953 lpfc_els_rcv_rrq(vport
, elsiocb
, ndlp
);
6958 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6959 "RCV ECHO: did:x%x/ste:x%x flg:x%x",
6960 did
, vport
->port_state
, ndlp
->nlp_flag
);
6962 phba
->fc_stat
.elsRcvECHO
++;
6963 lpfc_els_rcv_echo(vport
, elsiocb
, ndlp
);
6968 /* receive this due to exchange closed */
6969 rjt_err
= LSRJT_UNABLE_TPC
;
6970 rjt_exp
= LSEXP_INVALID_OX_RX
;
6973 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6974 "RCV ELS cmd: cmd:x%x did:x%x/ste:x%x",
6975 cmd
, did
, vport
->port_state
);
6977 /* Unsupported ELS command, reject */
6978 rjt_err
= LSRJT_CMD_UNSUPPORTED
;
6979 rjt_exp
= LSEXP_NOTHING_MORE
;
6981 /* Unknown ELS command <elsCmd> received from NPORT <did> */
6982 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
6983 "0115 Unknown ELS command x%x "
6984 "received from NPORT x%x\n", cmd
, did
);
6990 /* check if need to LS_RJT received ELS cmd */
6992 memset(&stat
, 0, sizeof(stat
));
6993 stat
.un
.b
.lsRjtRsnCode
= rjt_err
;
6994 stat
.un
.b
.lsRjtRsnCodeExp
= rjt_exp
;
6995 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, elsiocb
, ndlp
,
6999 lpfc_nlp_put(elsiocb
->context1
);
7000 elsiocb
->context1
= NULL
;
7004 if (vport
&& !(vport
->load_flag
& FC_UNLOADING
))
7005 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
7006 "0111 Dropping received ELS cmd "
7007 "Data: x%x x%x x%x\n",
7008 icmd
->ulpStatus
, icmd
->un
.ulpWord
[4], icmd
->ulpTimeout
);
7009 phba
->fc_stat
.elsRcvDrop
++;
7013 * lpfc_els_unsol_event - Process an unsolicited event from an els sli ring
7014 * @phba: pointer to lpfc hba data structure.
7015 * @pring: pointer to a SLI ring.
7016 * @elsiocb: pointer to lpfc els iocb data structure.
7018 * This routine is used to process an unsolicited event received from a SLI
7019 * (Service Level Interface) ring. The actual processing of the data buffer
7020 * associated with the unsolicited event is done by invoking the routine
7021 * lpfc_els_unsol_buffer() after properly set up the iocb buffer from the
7022 * SLI ring on which the unsolicited event was received.
7025 lpfc_els_unsol_event(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
7026 struct lpfc_iocbq
*elsiocb
)
7028 struct lpfc_vport
*vport
= phba
->pport
;
7029 IOCB_t
*icmd
= &elsiocb
->iocb
;
7031 struct lpfc_dmabuf
*bdeBuf1
= elsiocb
->context2
;
7032 struct lpfc_dmabuf
*bdeBuf2
= elsiocb
->context3
;
7034 elsiocb
->context1
= NULL
;
7035 elsiocb
->context2
= NULL
;
7036 elsiocb
->context3
= NULL
;
7038 if (icmd
->ulpStatus
== IOSTAT_NEED_BUFFER
) {
7039 lpfc_sli_hbqbuf_add_hbqs(phba
, LPFC_ELS_HBQ
);
7040 } else if (icmd
->ulpStatus
== IOSTAT_LOCAL_REJECT
&&
7041 (icmd
->un
.ulpWord
[4] & IOERR_PARAM_MASK
) ==
7042 IOERR_RCV_BUFFER_WAITING
) {
7043 phba
->fc_stat
.NoRcvBuf
++;
7044 /* Not enough posted buffers; Try posting more buffers */
7045 if (!(phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
))
7046 lpfc_post_buffer(phba
, pring
, 0);
7050 if ((phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
7051 (icmd
->ulpCommand
== CMD_IOCB_RCV_ELS64_CX
||
7052 icmd
->ulpCommand
== CMD_IOCB_RCV_SEQ64_CX
)) {
7053 if (icmd
->unsli3
.rcvsli3
.vpi
== 0xffff)
7054 vport
= phba
->pport
;
7056 vport
= lpfc_find_vport_by_vpid(phba
,
7057 icmd
->unsli3
.rcvsli3
.vpi
);
7060 /* If there are no BDEs associated
7061 * with this IOCB, there is nothing to do.
7063 if (icmd
->ulpBdeCount
== 0)
7066 /* type of ELS cmd is first 32bit word
7069 if (phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
) {
7070 elsiocb
->context2
= bdeBuf1
;
7072 paddr
= getPaddr(icmd
->un
.cont64
[0].addrHigh
,
7073 icmd
->un
.cont64
[0].addrLow
);
7074 elsiocb
->context2
= lpfc_sli_ringpostbuf_get(phba
, pring
,
7078 lpfc_els_unsol_buffer(phba
, pring
, vport
, elsiocb
);
7080 * The different unsolicited event handlers would tell us
7081 * if they are done with "mp" by setting context2 to NULL.
7083 if (elsiocb
->context2
) {
7084 lpfc_in_buf_free(phba
, (struct lpfc_dmabuf
*)elsiocb
->context2
);
7085 elsiocb
->context2
= NULL
;
7088 /* RCV_ELS64_CX provide for 2 BDEs - process 2nd if included */
7089 if ((phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
) &&
7090 icmd
->ulpBdeCount
== 2) {
7091 elsiocb
->context2
= bdeBuf2
;
7092 lpfc_els_unsol_buffer(phba
, pring
, vport
, elsiocb
);
7093 /* free mp if we are done with it */
7094 if (elsiocb
->context2
) {
7095 lpfc_in_buf_free(phba
, elsiocb
->context2
);
7096 elsiocb
->context2
= NULL
;
7102 * lpfc_do_scr_ns_plogi - Issue a plogi to the name server for scr
7103 * @phba: pointer to lpfc hba data structure.
7104 * @vport: pointer to a virtual N_Port data structure.
7106 * This routine issues a Port Login (PLOGI) to the Name Server with
7107 * State Change Request (SCR) for a @vport. This routine will create an
7108 * ndlp for the Name Server associated to the @vport if such node does
7109 * not already exist. The PLOGI to Name Server is issued by invoking the
7110 * lpfc_issue_els_plogi() routine. If Fabric-Device Management Interface
7111 * (FDMI) is configured to the @vport, a FDMI node will be created and
7112 * the PLOGI to FDMI is issued by invoking lpfc_issue_els_plogi() routine.
7115 lpfc_do_scr_ns_plogi(struct lpfc_hba
*phba
, struct lpfc_vport
*vport
)
7117 struct lpfc_nodelist
*ndlp
, *ndlp_fdmi
;
7118 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
7121 * If lpfc_delay_discovery parameter is set and the clean address
7122 * bit is cleared and fc fabric parameters chenged, delay FC NPort
7125 spin_lock_irq(shost
->host_lock
);
7126 if (vport
->fc_flag
& FC_DISC_DELAYED
) {
7127 spin_unlock_irq(shost
->host_lock
);
7128 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
,
7129 "3334 Delay fc port discovery for %d seconds\n",
7131 mod_timer(&vport
->delayed_disc_tmo
,
7132 jiffies
+ msecs_to_jiffies(1000 * phba
->fc_ratov
));
7135 spin_unlock_irq(shost
->host_lock
);
7137 ndlp
= lpfc_findnode_did(vport
, NameServer_DID
);
7139 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
7141 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
7142 lpfc_disc_start(vport
);
7145 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
7146 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
7147 "0251 NameServer login: no memory\n");
7150 lpfc_nlp_init(vport
, ndlp
, NameServer_DID
);
7151 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
7152 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_UNUSED_NODE
);
7154 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
7155 lpfc_disc_start(vport
);
7158 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
7159 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
7160 "0348 NameServer login: node freed\n");
7164 ndlp
->nlp_type
|= NLP_FABRIC
;
7166 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_PLOGI_ISSUE
);
7168 if (lpfc_issue_els_plogi(vport
, ndlp
->nlp_DID
, 0)) {
7169 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
7170 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
7171 "0252 Cannot issue NameServer login\n");
7175 if (vport
->cfg_fdmi_on
) {
7176 /* If this is the first time, allocate an ndlp and initialize
7177 * it. Otherwise, make sure the node is enabled and then do the
7180 ndlp_fdmi
= lpfc_findnode_did(vport
, FDMI_DID
);
7182 ndlp_fdmi
= mempool_alloc(phba
->nlp_mem_pool
,
7185 lpfc_nlp_init(vport
, ndlp_fdmi
, FDMI_DID
);
7186 ndlp_fdmi
->nlp_type
|= NLP_FABRIC
;
7190 if (!NLP_CHK_NODE_ACT(ndlp_fdmi
))
7191 ndlp_fdmi
= lpfc_enable_node(vport
,
7196 lpfc_nlp_set_state(vport
, ndlp_fdmi
,
7197 NLP_STE_PLOGI_ISSUE
);
7198 lpfc_issue_els_plogi(vport
, ndlp_fdmi
->nlp_DID
, 0);
7204 * lpfc_cmpl_reg_new_vport - Completion callback function to register new vport
7205 * @phba: pointer to lpfc hba data structure.
7206 * @pmb: pointer to the driver internal queue element for mailbox command.
7208 * This routine is the completion callback function to register new vport
7209 * mailbox command. If the new vport mailbox command completes successfully,
7210 * the fabric registration login shall be performed on physical port (the
7211 * new vport created is actually a physical port, with VPI 0) or the port
7212 * login to Name Server for State Change Request (SCR) will be performed
7213 * on virtual port (real virtual port, with VPI greater than 0).
7216 lpfc_cmpl_reg_new_vport(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
7218 struct lpfc_vport
*vport
= pmb
->vport
;
7219 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
7220 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
7221 MAILBOX_t
*mb
= &pmb
->u
.mb
;
7224 spin_lock_irq(shost
->host_lock
);
7225 vport
->fc_flag
&= ~FC_VPORT_NEEDS_REG_VPI
;
7226 spin_unlock_irq(shost
->host_lock
);
7228 if (mb
->mbxStatus
) {
7229 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
7230 "0915 Register VPI failed : Status: x%x"
7231 " upd bit: x%x \n", mb
->mbxStatus
,
7232 mb
->un
.varRegVpi
.upd
);
7233 if (phba
->sli_rev
== LPFC_SLI_REV4
&&
7234 mb
->un
.varRegVpi
.upd
)
7235 goto mbox_err_exit
;
7237 switch (mb
->mbxStatus
) {
7238 case 0x11: /* unsupported feature */
7239 case 0x9603: /* max_vpi exceeded */
7240 case 0x9602: /* Link event since CLEAR_LA */
7241 /* giving up on vport registration */
7242 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
7243 spin_lock_irq(shost
->host_lock
);
7244 vport
->fc_flag
&= ~(FC_FABRIC
| FC_PUBLIC_LOOP
);
7245 spin_unlock_irq(shost
->host_lock
);
7246 lpfc_can_disctmo(vport
);
7248 /* If reg_vpi fail with invalid VPI status, re-init VPI */
7250 spin_lock_irq(shost
->host_lock
);
7251 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
7252 spin_unlock_irq(shost
->host_lock
);
7253 lpfc_init_vpi(phba
, pmb
, vport
->vpi
);
7255 pmb
->mbox_cmpl
= lpfc_init_vpi_cmpl
;
7256 rc
= lpfc_sli_issue_mbox(phba
, pmb
,
7258 if (rc
== MBX_NOT_FINISHED
) {
7259 lpfc_printf_vlog(vport
,
7261 "2732 Failed to issue INIT_VPI"
7262 " mailbox command\n");
7269 /* Try to recover from this error */
7270 if (phba
->sli_rev
== LPFC_SLI_REV4
)
7271 lpfc_sli4_unreg_all_rpis(vport
);
7272 lpfc_mbx_unreg_vpi(vport
);
7273 spin_lock_irq(shost
->host_lock
);
7274 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
7275 spin_unlock_irq(shost
->host_lock
);
7276 if (vport
->port_type
== LPFC_PHYSICAL_PORT
7277 && !(vport
->fc_flag
& FC_LOGO_RCVD_DID_CHNG
))
7278 lpfc_issue_init_vfi(vport
);
7280 lpfc_initial_fdisc(vport
);
7284 spin_lock_irq(shost
->host_lock
);
7285 vport
->vpi_state
|= LPFC_VPI_REGISTERED
;
7286 spin_unlock_irq(shost
->host_lock
);
7287 if (vport
== phba
->pport
) {
7288 if (phba
->sli_rev
< LPFC_SLI_REV4
)
7289 lpfc_issue_fabric_reglogin(vport
);
7292 * If the physical port is instantiated using
7293 * FDISC, do not start vport discovery.
7295 if (vport
->port_state
!= LPFC_FDISC
)
7296 lpfc_start_fdiscs(phba
);
7297 lpfc_do_scr_ns_plogi(phba
, vport
);
7300 lpfc_do_scr_ns_plogi(phba
, vport
);
7303 /* Now, we decrement the ndlp reference count held for this
7308 mempool_free(pmb
, phba
->mbox_mem_pool
);
7313 * lpfc_register_new_vport - Register a new vport with a HBA
7314 * @phba: pointer to lpfc hba data structure.
7315 * @vport: pointer to a host virtual N_Port data structure.
7316 * @ndlp: pointer to a node-list data structure.
7318 * This routine registers the @vport as a new virtual port with a HBA.
7319 * It is done through a registering vpi mailbox command.
7322 lpfc_register_new_vport(struct lpfc_hba
*phba
, struct lpfc_vport
*vport
,
7323 struct lpfc_nodelist
*ndlp
)
7325 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
7328 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
7330 lpfc_reg_vpi(vport
, mbox
);
7331 mbox
->vport
= vport
;
7332 mbox
->context2
= lpfc_nlp_get(ndlp
);
7333 mbox
->mbox_cmpl
= lpfc_cmpl_reg_new_vport
;
7334 if (lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
)
7335 == MBX_NOT_FINISHED
) {
7336 /* mailbox command not success, decrement ndlp
7337 * reference count for this command
7340 mempool_free(mbox
, phba
->mbox_mem_pool
);
7342 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
7343 "0253 Register VPI: Can't send mbox\n");
7347 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
7348 "0254 Register VPI: no memory\n");
7354 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
7355 spin_lock_irq(shost
->host_lock
);
7356 vport
->fc_flag
&= ~FC_VPORT_NEEDS_REG_VPI
;
7357 spin_unlock_irq(shost
->host_lock
);
7362 * lpfc_cancel_all_vport_retry_delay_timer - Cancel all vport retry delay timer
7363 * @phba: pointer to lpfc hba data structure.
7365 * This routine cancels the retry delay timers to all the vports.
7368 lpfc_cancel_all_vport_retry_delay_timer(struct lpfc_hba
*phba
)
7370 struct lpfc_vport
**vports
;
7371 struct lpfc_nodelist
*ndlp
;
7372 uint32_t link_state
;
7375 /* Treat this failure as linkdown for all vports */
7376 link_state
= phba
->link_state
;
7377 lpfc_linkdown(phba
);
7378 phba
->link_state
= link_state
;
7380 vports
= lpfc_create_vport_work_array(phba
);
7383 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
7384 ndlp
= lpfc_findnode_did(vports
[i
], Fabric_DID
);
7386 lpfc_cancel_retry_delay_tmo(vports
[i
], ndlp
);
7387 lpfc_els_flush_cmd(vports
[i
]);
7389 lpfc_destroy_vport_work_array(phba
, vports
);
7394 * lpfc_retry_pport_discovery - Start timer to retry FLOGI.
7395 * @phba: pointer to lpfc hba data structure.
7397 * This routine abort all pending discovery commands and
7398 * start a timer to retry FLOGI for the physical port
7402 lpfc_retry_pport_discovery(struct lpfc_hba
*phba
)
7404 struct lpfc_nodelist
*ndlp
;
7405 struct Scsi_Host
*shost
;
7407 /* Cancel the all vports retry delay retry timers */
7408 lpfc_cancel_all_vport_retry_delay_timer(phba
);
7410 /* If fabric require FLOGI, then re-instantiate physical login */
7411 ndlp
= lpfc_findnode_did(phba
->pport
, Fabric_DID
);
7415 shost
= lpfc_shost_from_vport(phba
->pport
);
7416 mod_timer(&ndlp
->nlp_delayfunc
, jiffies
+ msecs_to_jiffies(1000));
7417 spin_lock_irq(shost
->host_lock
);
7418 ndlp
->nlp_flag
|= NLP_DELAY_TMO
;
7419 spin_unlock_irq(shost
->host_lock
);
7420 ndlp
->nlp_last_elscmd
= ELS_CMD_FLOGI
;
7421 phba
->pport
->port_state
= LPFC_FLOGI
;
7426 * lpfc_fabric_login_reqd - Check if FLOGI required.
7427 * @phba: pointer to lpfc hba data structure.
7428 * @cmdiocb: pointer to FDISC command iocb.
7429 * @rspiocb: pointer to FDISC response iocb.
7431 * This routine checks if a FLOGI is reguired for FDISC
7435 lpfc_fabric_login_reqd(struct lpfc_hba
*phba
,
7436 struct lpfc_iocbq
*cmdiocb
,
7437 struct lpfc_iocbq
*rspiocb
)
7440 if ((rspiocb
->iocb
.ulpStatus
!= IOSTAT_FABRIC_RJT
) ||
7441 (rspiocb
->iocb
.un
.ulpWord
[4] != RJT_LOGIN_REQUIRED
))
7448 * lpfc_cmpl_els_fdisc - Completion function for fdisc iocb command
7449 * @phba: pointer to lpfc hba data structure.
7450 * @cmdiocb: pointer to lpfc command iocb data structure.
7451 * @rspiocb: pointer to lpfc response iocb data structure.
7453 * This routine is the completion callback function to a Fabric Discover
7454 * (FDISC) ELS command. Since all the FDISC ELS commands are issued
7455 * single threaded, each FDISC completion callback function will reset
7456 * the discovery timer for all vports such that the timers will not get
7457 * unnecessary timeout. The function checks the FDISC IOCB status. If error
7458 * detected, the vport will be set to FC_VPORT_FAILED state. Otherwise,the
7459 * vport will set to FC_VPORT_ACTIVE state. It then checks whether the DID
7460 * assigned to the vport has been changed with the completion of the FDISC
7461 * command. If so, both RPI (Remote Port Index) and VPI (Virtual Port Index)
7462 * are unregistered from the HBA, and then the lpfc_register_new_vport()
7463 * routine is invoked to register new vport with the HBA. Otherwise, the
7464 * lpfc_do_scr_ns_plogi() routine is invoked to issue a PLOGI to the Name
7465 * Server for State Change Request (SCR).
7468 lpfc_cmpl_els_fdisc(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
7469 struct lpfc_iocbq
*rspiocb
)
7471 struct lpfc_vport
*vport
= cmdiocb
->vport
;
7472 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
7473 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) cmdiocb
->context1
;
7474 struct lpfc_nodelist
*np
;
7475 struct lpfc_nodelist
*next_np
;
7476 IOCB_t
*irsp
= &rspiocb
->iocb
;
7477 struct lpfc_iocbq
*piocb
;
7478 struct lpfc_dmabuf
*pcmd
= cmdiocb
->context2
, *prsp
;
7479 struct serv_parm
*sp
;
7480 uint8_t fabric_param_changed
;
7482 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
7483 "0123 FDISC completes. x%x/x%x prevDID: x%x\n",
7484 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
7486 /* Since all FDISCs are being single threaded, we
7487 * must reset the discovery timer for ALL vports
7488 * waiting to send FDISC when one completes.
7490 list_for_each_entry(piocb
, &phba
->fabric_iocb_list
, list
) {
7491 lpfc_set_disctmo(piocb
->vport
);
7494 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
7495 "FDISC cmpl: status:x%x/x%x prevdid:x%x",
7496 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4], vport
->fc_prevDID
);
7498 if (irsp
->ulpStatus
) {
7500 if (lpfc_fabric_login_reqd(phba
, cmdiocb
, rspiocb
)) {
7501 lpfc_retry_pport_discovery(phba
);
7505 /* Check for retry */
7506 if (lpfc_els_retry(phba
, cmdiocb
, rspiocb
))
7509 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
7510 "0126 FDISC failed. (x%x/x%x)\n",
7511 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4]);
7514 spin_lock_irq(shost
->host_lock
);
7515 vport
->fc_flag
&= ~FC_VPORT_CVL_RCVD
;
7516 vport
->fc_flag
&= ~FC_VPORT_LOGO_RCVD
;
7517 vport
->fc_flag
|= FC_FABRIC
;
7518 if (vport
->phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
)
7519 vport
->fc_flag
|= FC_PUBLIC_LOOP
;
7520 spin_unlock_irq(shost
->host_lock
);
7522 vport
->fc_myDID
= irsp
->un
.ulpWord
[4] & Mask_DID
;
7523 lpfc_vport_set_state(vport
, FC_VPORT_ACTIVE
);
7524 prsp
= list_get_first(&pcmd
->list
, struct lpfc_dmabuf
, list
);
7527 sp
= prsp
->virt
+ sizeof(uint32_t);
7528 fabric_param_changed
= lpfc_check_clean_addr_bit(vport
, sp
);
7529 memcpy(&vport
->fabric_portname
, &sp
->portName
,
7530 sizeof(struct lpfc_name
));
7531 memcpy(&vport
->fabric_nodename
, &sp
->nodeName
,
7532 sizeof(struct lpfc_name
));
7533 if (fabric_param_changed
&&
7534 !(vport
->fc_flag
& FC_VPORT_NEEDS_REG_VPI
)) {
7535 /* If our NportID changed, we need to ensure all
7536 * remaining NPORTs get unreg_login'ed so we can
7539 list_for_each_entry_safe(np
, next_np
,
7540 &vport
->fc_nodes
, nlp_listp
) {
7541 if (!NLP_CHK_NODE_ACT(ndlp
) ||
7542 (np
->nlp_state
!= NLP_STE_NPR_NODE
) ||
7543 !(np
->nlp_flag
& NLP_NPR_ADISC
))
7545 spin_lock_irq(shost
->host_lock
);
7546 np
->nlp_flag
&= ~NLP_NPR_ADISC
;
7547 spin_unlock_irq(shost
->host_lock
);
7548 lpfc_unreg_rpi(vport
, np
);
7550 lpfc_cleanup_pending_mbox(vport
);
7552 if (phba
->sli_rev
== LPFC_SLI_REV4
)
7553 lpfc_sli4_unreg_all_rpis(vport
);
7555 lpfc_mbx_unreg_vpi(vport
);
7556 spin_lock_irq(shost
->host_lock
);
7557 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
7558 if (phba
->sli_rev
== LPFC_SLI_REV4
)
7559 vport
->fc_flag
|= FC_VPORT_NEEDS_INIT_VPI
;
7561 vport
->fc_flag
|= FC_LOGO_RCVD_DID_CHNG
;
7562 spin_unlock_irq(shost
->host_lock
);
7563 } else if ((phba
->sli_rev
== LPFC_SLI_REV4
) &&
7564 !(vport
->fc_flag
& FC_VPORT_NEEDS_REG_VPI
)) {
7566 * Driver needs to re-reg VPI in order for f/w
7567 * to update the MAC address.
7569 lpfc_register_new_vport(phba
, vport
, ndlp
);
7573 if (vport
->fc_flag
& FC_VPORT_NEEDS_INIT_VPI
)
7574 lpfc_issue_init_vpi(vport
);
7575 else if (vport
->fc_flag
& FC_VPORT_NEEDS_REG_VPI
)
7576 lpfc_register_new_vport(phba
, vport
, ndlp
);
7578 lpfc_do_scr_ns_plogi(phba
, vport
);
7581 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
7582 /* Cancel discovery timer */
7583 lpfc_can_disctmo(vport
);
7586 lpfc_els_free_iocb(phba
, cmdiocb
);
7590 * lpfc_issue_els_fdisc - Issue a fdisc iocb command
7591 * @vport: pointer to a virtual N_Port data structure.
7592 * @ndlp: pointer to a node-list data structure.
7593 * @retry: number of retries to the command IOCB.
7595 * This routine prepares and issues a Fabric Discover (FDISC) IOCB to
7596 * a remote node (@ndlp) off a @vport. It uses the lpfc_issue_fabric_iocb()
7597 * routine to issue the IOCB, which makes sure only one outstanding fabric
7598 * IOCB will be sent off HBA at any given time.
7600 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
7601 * will be incremented by 1 for holding the ndlp and the reference to ndlp
7602 * will be stored into the context1 field of the IOCB for the completion
7603 * callback function to the FDISC ELS command.
7606 * 0 - Successfully issued fdisc iocb command
7607 * 1 - Failed to issue fdisc iocb command
7610 lpfc_issue_els_fdisc(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
7613 struct lpfc_hba
*phba
= vport
->phba
;
7615 struct lpfc_iocbq
*elsiocb
;
7616 struct serv_parm
*sp
;
7619 int did
= ndlp
->nlp_DID
;
7622 vport
->port_state
= LPFC_FDISC
;
7623 vport
->fc_myDID
= 0;
7624 cmdsize
= (sizeof(uint32_t) + sizeof(struct serv_parm
));
7625 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
, did
,
7628 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
7629 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
7630 "0255 Issue FDISC: no IOCB\n");
7634 icmd
= &elsiocb
->iocb
;
7635 icmd
->un
.elsreq64
.myID
= 0;
7636 icmd
->un
.elsreq64
.fl
= 1;
7639 * SLI3 ports require a different context type value than SLI4.
7640 * Catch SLI3 ports here and override the prep.
7642 if (phba
->sli_rev
== LPFC_SLI_REV3
) {
7647 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
7648 *((uint32_t *) (pcmd
)) = ELS_CMD_FDISC
;
7649 pcmd
+= sizeof(uint32_t); /* CSP Word 1 */
7650 memcpy(pcmd
, &vport
->phba
->pport
->fc_sparam
, sizeof(struct serv_parm
));
7651 sp
= (struct serv_parm
*) pcmd
;
7652 /* Setup CSPs accordingly for Fabric */
7653 sp
->cmn
.e_d_tov
= 0;
7654 sp
->cmn
.w2
.r_a_tov
= 0;
7655 sp
->cmn
.virtual_fabric_support
= 0;
7656 sp
->cls1
.classValid
= 0;
7657 sp
->cls2
.seqDelivery
= 1;
7658 sp
->cls3
.seqDelivery
= 1;
7660 pcmd
+= sizeof(uint32_t); /* CSP Word 2 */
7661 pcmd
+= sizeof(uint32_t); /* CSP Word 3 */
7662 pcmd
+= sizeof(uint32_t); /* CSP Word 4 */
7663 pcmd
+= sizeof(uint32_t); /* Port Name */
7664 memcpy(pcmd
, &vport
->fc_portname
, 8);
7665 pcmd
+= sizeof(uint32_t); /* Node Name */
7666 pcmd
+= sizeof(uint32_t); /* Node Name */
7667 memcpy(pcmd
, &vport
->fc_nodename
, 8);
7669 lpfc_set_disctmo(vport
);
7671 phba
->fc_stat
.elsXmitFDISC
++;
7672 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_fdisc
;
7674 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
7675 "Issue FDISC: did:x%x",
7678 rc
= lpfc_issue_fabric_iocb(phba
, elsiocb
);
7679 if (rc
== IOCB_ERROR
) {
7680 lpfc_els_free_iocb(phba
, elsiocb
);
7681 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
7682 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
7683 "0256 Issue FDISC: Cannot send IOCB\n");
7686 lpfc_vport_set_state(vport
, FC_VPORT_INITIALIZING
);
7691 * lpfc_cmpl_els_npiv_logo - Completion function with vport logo
7692 * @phba: pointer to lpfc hba data structure.
7693 * @cmdiocb: pointer to lpfc command iocb data structure.
7694 * @rspiocb: pointer to lpfc response iocb data structure.
7696 * This routine is the completion callback function to the issuing of a LOGO
7697 * ELS command off a vport. It frees the command IOCB and then decrement the
7698 * reference count held on ndlp for this completion function, indicating that
7699 * the reference to the ndlp is no long needed. Note that the
7700 * lpfc_els_free_iocb() routine decrements the ndlp reference held for this
7701 * callback function and an additional explicit ndlp reference decrementation
7702 * will trigger the actual release of the ndlp.
7705 lpfc_cmpl_els_npiv_logo(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
7706 struct lpfc_iocbq
*rspiocb
)
7708 struct lpfc_vport
*vport
= cmdiocb
->vport
;
7710 struct lpfc_nodelist
*ndlp
;
7711 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
7713 ndlp
= (struct lpfc_nodelist
*)cmdiocb
->context1
;
7714 irsp
= &rspiocb
->iocb
;
7715 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
7716 "LOGO npiv cmpl: status:x%x/x%x did:x%x",
7717 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4], irsp
->un
.rcvels
.remoteID
);
7719 lpfc_els_free_iocb(phba
, cmdiocb
);
7720 vport
->unreg_vpi_cmpl
= VPORT_ERROR
;
7722 /* Trigger the release of the ndlp after logo */
7725 /* NPIV LOGO completes to NPort <nlp_DID> */
7726 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
7727 "2928 NPIV LOGO completes to NPort x%x "
7728 "Data: x%x x%x x%x x%x\n",
7729 ndlp
->nlp_DID
, irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
7730 irsp
->ulpTimeout
, vport
->num_disc_nodes
);
7732 if (irsp
->ulpStatus
== IOSTAT_SUCCESS
) {
7733 spin_lock_irq(shost
->host_lock
);
7734 vport
->fc_flag
&= ~FC_FABRIC
;
7735 spin_unlock_irq(shost
->host_lock
);
7740 * lpfc_issue_els_npiv_logo - Issue a logo off a vport
7741 * @vport: pointer to a virtual N_Port data structure.
7742 * @ndlp: pointer to a node-list data structure.
7744 * This routine issues a LOGO ELS command to an @ndlp off a @vport.
7746 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
7747 * will be incremented by 1 for holding the ndlp and the reference to ndlp
7748 * will be stored into the context1 field of the IOCB for the completion
7749 * callback function to the LOGO ELS command.
7752 * 0 - Successfully issued logo off the @vport
7753 * 1 - Failed to issue logo off the @vport
7756 lpfc_issue_els_npiv_logo(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
7758 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
7759 struct lpfc_hba
*phba
= vport
->phba
;
7761 struct lpfc_iocbq
*elsiocb
;
7765 cmdsize
= 2 * sizeof(uint32_t) + sizeof(struct lpfc_name
);
7766 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, 0, ndlp
, ndlp
->nlp_DID
,
7771 icmd
= &elsiocb
->iocb
;
7772 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
7773 *((uint32_t *) (pcmd
)) = ELS_CMD_LOGO
;
7774 pcmd
+= sizeof(uint32_t);
7776 /* Fill in LOGO payload */
7777 *((uint32_t *) (pcmd
)) = be32_to_cpu(vport
->fc_myDID
);
7778 pcmd
+= sizeof(uint32_t);
7779 memcpy(pcmd
, &vport
->fc_portname
, sizeof(struct lpfc_name
));
7781 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
7782 "Issue LOGO npiv did:x%x flg:x%x",
7783 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
7785 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_npiv_logo
;
7786 spin_lock_irq(shost
->host_lock
);
7787 ndlp
->nlp_flag
|= NLP_LOGO_SND
;
7788 spin_unlock_irq(shost
->host_lock
);
7789 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) ==
7791 spin_lock_irq(shost
->host_lock
);
7792 ndlp
->nlp_flag
&= ~NLP_LOGO_SND
;
7793 spin_unlock_irq(shost
->host_lock
);
7794 lpfc_els_free_iocb(phba
, elsiocb
);
7801 * lpfc_fabric_block_timeout - Handler function to the fabric block timer
7802 * @ptr: holder for the timer function associated data.
7804 * This routine is invoked by the fabric iocb block timer after
7805 * timeout. It posts the fabric iocb block timeout event by setting the
7806 * WORKER_FABRIC_BLOCK_TMO bit to work port event bitmap and then invokes
7807 * lpfc_worker_wake_up() routine to wake up the worker thread. It is for
7808 * the worker thread to invoke the lpfc_unblock_fabric_iocbs() on the
7809 * posted event WORKER_FABRIC_BLOCK_TMO.
7812 lpfc_fabric_block_timeout(unsigned long ptr
)
7814 struct lpfc_hba
*phba
= (struct lpfc_hba
*) ptr
;
7815 unsigned long iflags
;
7816 uint32_t tmo_posted
;
7818 spin_lock_irqsave(&phba
->pport
->work_port_lock
, iflags
);
7819 tmo_posted
= phba
->pport
->work_port_events
& WORKER_FABRIC_BLOCK_TMO
;
7821 phba
->pport
->work_port_events
|= WORKER_FABRIC_BLOCK_TMO
;
7822 spin_unlock_irqrestore(&phba
->pport
->work_port_lock
, iflags
);
7825 lpfc_worker_wake_up(phba
);
7830 * lpfc_resume_fabric_iocbs - Issue a fabric iocb from driver internal list
7831 * @phba: pointer to lpfc hba data structure.
7833 * This routine issues one fabric iocb from the driver internal list to
7834 * the HBA. It first checks whether it's ready to issue one fabric iocb to
7835 * the HBA (whether there is no outstanding fabric iocb). If so, it shall
7836 * remove one pending fabric iocb from the driver internal list and invokes
7837 * lpfc_sli_issue_iocb() routine to send the fabric iocb to the HBA.
7840 lpfc_resume_fabric_iocbs(struct lpfc_hba
*phba
)
7842 struct lpfc_iocbq
*iocb
;
7843 unsigned long iflags
;
7849 spin_lock_irqsave(&phba
->hbalock
, iflags
);
7850 /* Post any pending iocb to the SLI layer */
7851 if (atomic_read(&phba
->fabric_iocb_count
) == 0) {
7852 list_remove_head(&phba
->fabric_iocb_list
, iocb
, typeof(*iocb
),
7855 /* Increment fabric iocb count to hold the position */
7856 atomic_inc(&phba
->fabric_iocb_count
);
7858 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
7860 iocb
->fabric_iocb_cmpl
= iocb
->iocb_cmpl
;
7861 iocb
->iocb_cmpl
= lpfc_cmpl_fabric_iocb
;
7862 iocb
->iocb_flag
|= LPFC_IO_FABRIC
;
7864 lpfc_debugfs_disc_trc(iocb
->vport
, LPFC_DISC_TRC_ELS_CMD
,
7865 "Fabric sched1: ste:x%x",
7866 iocb
->vport
->port_state
, 0, 0);
7868 ret
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, iocb
, 0);
7870 if (ret
== IOCB_ERROR
) {
7871 iocb
->iocb_cmpl
= iocb
->fabric_iocb_cmpl
;
7872 iocb
->fabric_iocb_cmpl
= NULL
;
7873 iocb
->iocb_flag
&= ~LPFC_IO_FABRIC
;
7875 cmd
->ulpStatus
= IOSTAT_LOCAL_REJECT
;
7876 cmd
->un
.ulpWord
[4] = IOERR_SLI_ABORTED
;
7877 iocb
->iocb_cmpl(phba
, iocb
, iocb
);
7879 atomic_dec(&phba
->fabric_iocb_count
);
7888 * lpfc_unblock_fabric_iocbs - Unblock issuing fabric iocb command
7889 * @phba: pointer to lpfc hba data structure.
7891 * This routine unblocks the issuing fabric iocb command. The function
7892 * will clear the fabric iocb block bit and then invoke the routine
7893 * lpfc_resume_fabric_iocbs() to issue one of the pending fabric iocb
7894 * from the driver internal fabric iocb list.
7897 lpfc_unblock_fabric_iocbs(struct lpfc_hba
*phba
)
7899 clear_bit(FABRIC_COMANDS_BLOCKED
, &phba
->bit_flags
);
7901 lpfc_resume_fabric_iocbs(phba
);
7906 * lpfc_block_fabric_iocbs - Block issuing fabric iocb command
7907 * @phba: pointer to lpfc hba data structure.
7909 * This routine blocks the issuing fabric iocb for a specified amount of
7910 * time (currently 100 ms). This is done by set the fabric iocb block bit
7911 * and set up a timeout timer for 100ms. When the block bit is set, no more
7912 * fabric iocb will be issued out of the HBA.
7915 lpfc_block_fabric_iocbs(struct lpfc_hba
*phba
)
7919 blocked
= test_and_set_bit(FABRIC_COMANDS_BLOCKED
, &phba
->bit_flags
);
7920 /* Start a timer to unblock fabric iocbs after 100ms */
7922 mod_timer(&phba
->fabric_block_timer
,
7923 jiffies
+ msecs_to_jiffies(100));
7929 * lpfc_cmpl_fabric_iocb - Completion callback function for fabric iocb
7930 * @phba: pointer to lpfc hba data structure.
7931 * @cmdiocb: pointer to lpfc command iocb data structure.
7932 * @rspiocb: pointer to lpfc response iocb data structure.
7934 * This routine is the callback function that is put to the fabric iocb's
7935 * callback function pointer (iocb->iocb_cmpl). The original iocb's callback
7936 * function pointer has been stored in iocb->fabric_iocb_cmpl. This callback
7937 * function first restores and invokes the original iocb's callback function
7938 * and then invokes the lpfc_resume_fabric_iocbs() routine to issue the next
7939 * fabric bound iocb from the driver internal fabric iocb list onto the wire.
7942 lpfc_cmpl_fabric_iocb(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
7943 struct lpfc_iocbq
*rspiocb
)
7947 if ((cmdiocb
->iocb_flag
& LPFC_IO_FABRIC
) != LPFC_IO_FABRIC
)
7950 switch (rspiocb
->iocb
.ulpStatus
) {
7951 case IOSTAT_NPORT_RJT
:
7952 case IOSTAT_FABRIC_RJT
:
7953 if (rspiocb
->iocb
.un
.ulpWord
[4] & RJT_UNAVAIL_TEMP
) {
7954 lpfc_block_fabric_iocbs(phba
);
7958 case IOSTAT_NPORT_BSY
:
7959 case IOSTAT_FABRIC_BSY
:
7960 lpfc_block_fabric_iocbs(phba
);
7964 stat
.un
.lsRjtError
=
7965 be32_to_cpu(rspiocb
->iocb
.un
.ulpWord
[4]);
7966 if ((stat
.un
.b
.lsRjtRsnCode
== LSRJT_UNABLE_TPC
) ||
7967 (stat
.un
.b
.lsRjtRsnCode
== LSRJT_LOGICAL_BSY
))
7968 lpfc_block_fabric_iocbs(phba
);
7972 if (atomic_read(&phba
->fabric_iocb_count
) == 0)
7975 cmdiocb
->iocb_cmpl
= cmdiocb
->fabric_iocb_cmpl
;
7976 cmdiocb
->fabric_iocb_cmpl
= NULL
;
7977 cmdiocb
->iocb_flag
&= ~LPFC_IO_FABRIC
;
7978 cmdiocb
->iocb_cmpl(phba
, cmdiocb
, rspiocb
);
7980 atomic_dec(&phba
->fabric_iocb_count
);
7981 if (!test_bit(FABRIC_COMANDS_BLOCKED
, &phba
->bit_flags
)) {
7982 /* Post any pending iocbs to HBA */
7983 lpfc_resume_fabric_iocbs(phba
);
7988 * lpfc_issue_fabric_iocb - Issue a fabric iocb command
7989 * @phba: pointer to lpfc hba data structure.
7990 * @iocb: pointer to lpfc command iocb data structure.
7992 * This routine is used as the top-level API for issuing a fabric iocb command
7993 * such as FLOGI and FDISC. To accommodate certain switch fabric, this driver
7994 * function makes sure that only one fabric bound iocb will be outstanding at
7995 * any given time. As such, this function will first check to see whether there
7996 * is already an outstanding fabric iocb on the wire. If so, it will put the
7997 * newly issued iocb onto the driver internal fabric iocb list, waiting to be
7998 * issued later. Otherwise, it will issue the iocb on the wire and update the
7999 * fabric iocb count it indicate that there is one fabric iocb on the wire.
8001 * Note, this implementation has a potential sending out fabric IOCBs out of
8002 * order. The problem is caused by the construction of the "ready" boolen does
8003 * not include the condition that the internal fabric IOCB list is empty. As
8004 * such, it is possible a fabric IOCB issued by this routine might be "jump"
8005 * ahead of the fabric IOCBs in the internal list.
8008 * IOCB_SUCCESS - either fabric iocb put on the list or issued successfully
8009 * IOCB_ERROR - failed to issue fabric iocb
8012 lpfc_issue_fabric_iocb(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocb
)
8014 unsigned long iflags
;
8018 if (atomic_read(&phba
->fabric_iocb_count
) > 1)
8021 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8022 ready
= atomic_read(&phba
->fabric_iocb_count
) == 0 &&
8023 !test_bit(FABRIC_COMANDS_BLOCKED
, &phba
->bit_flags
);
8026 /* Increment fabric iocb count to hold the position */
8027 atomic_inc(&phba
->fabric_iocb_count
);
8028 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8030 iocb
->fabric_iocb_cmpl
= iocb
->iocb_cmpl
;
8031 iocb
->iocb_cmpl
= lpfc_cmpl_fabric_iocb
;
8032 iocb
->iocb_flag
|= LPFC_IO_FABRIC
;
8034 lpfc_debugfs_disc_trc(iocb
->vport
, LPFC_DISC_TRC_ELS_CMD
,
8035 "Fabric sched2: ste:x%x",
8036 iocb
->vport
->port_state
, 0, 0);
8038 ret
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, iocb
, 0);
8040 if (ret
== IOCB_ERROR
) {
8041 iocb
->iocb_cmpl
= iocb
->fabric_iocb_cmpl
;
8042 iocb
->fabric_iocb_cmpl
= NULL
;
8043 iocb
->iocb_flag
&= ~LPFC_IO_FABRIC
;
8044 atomic_dec(&phba
->fabric_iocb_count
);
8047 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8048 list_add_tail(&iocb
->list
, &phba
->fabric_iocb_list
);
8049 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8056 * lpfc_fabric_abort_vport - Abort a vport's iocbs from driver fabric iocb list
8057 * @vport: pointer to a virtual N_Port data structure.
8059 * This routine aborts all the IOCBs associated with a @vport from the
8060 * driver internal fabric IOCB list. The list contains fabric IOCBs to be
8061 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB
8062 * list, removes each IOCB associated with the @vport off the list, set the
8063 * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function
8064 * associated with the IOCB.
8066 static void lpfc_fabric_abort_vport(struct lpfc_vport
*vport
)
8068 LIST_HEAD(completions
);
8069 struct lpfc_hba
*phba
= vport
->phba
;
8070 struct lpfc_iocbq
*tmp_iocb
, *piocb
;
8072 spin_lock_irq(&phba
->hbalock
);
8073 list_for_each_entry_safe(piocb
, tmp_iocb
, &phba
->fabric_iocb_list
,
8076 if (piocb
->vport
!= vport
)
8079 list_move_tail(&piocb
->list
, &completions
);
8081 spin_unlock_irq(&phba
->hbalock
);
8083 /* Cancel all the IOCBs from the completions list */
8084 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
8089 * lpfc_fabric_abort_nport - Abort a ndlp's iocbs from driver fabric iocb list
8090 * @ndlp: pointer to a node-list data structure.
8092 * This routine aborts all the IOCBs associated with an @ndlp from the
8093 * driver internal fabric IOCB list. The list contains fabric IOCBs to be
8094 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB
8095 * list, removes each IOCB associated with the @ndlp off the list, set the
8096 * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function
8097 * associated with the IOCB.
8099 void lpfc_fabric_abort_nport(struct lpfc_nodelist
*ndlp
)
8101 LIST_HEAD(completions
);
8102 struct lpfc_hba
*phba
= ndlp
->phba
;
8103 struct lpfc_iocbq
*tmp_iocb
, *piocb
;
8104 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
8106 spin_lock_irq(&phba
->hbalock
);
8107 list_for_each_entry_safe(piocb
, tmp_iocb
, &phba
->fabric_iocb_list
,
8109 if ((lpfc_check_sli_ndlp(phba
, pring
, piocb
, ndlp
))) {
8111 list_move_tail(&piocb
->list
, &completions
);
8114 spin_unlock_irq(&phba
->hbalock
);
8116 /* Cancel all the IOCBs from the completions list */
8117 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
8122 * lpfc_fabric_abort_hba - Abort all iocbs on driver fabric iocb list
8123 * @phba: pointer to lpfc hba data structure.
8125 * This routine aborts all the IOCBs currently on the driver internal
8126 * fabric IOCB list. The list contains fabric IOCBs to be issued to the ELS
8127 * IOCB ring. This function takes the entire IOCB list off the fabric IOCB
8128 * list, removes IOCBs off the list, set the status feild to
8129 * IOSTAT_LOCAL_REJECT, and invokes the callback function associated with
8132 void lpfc_fabric_abort_hba(struct lpfc_hba
*phba
)
8134 LIST_HEAD(completions
);
8136 spin_lock_irq(&phba
->hbalock
);
8137 list_splice_init(&phba
->fabric_iocb_list
, &completions
);
8138 spin_unlock_irq(&phba
->hbalock
);
8140 /* Cancel all the IOCBs from the completions list */
8141 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
8146 * lpfc_sli4_vport_delete_els_xri_aborted -Remove all ndlp references for vport
8147 * @vport: pointer to lpfc vport data structure.
8149 * This routine is invoked by the vport cleanup for deletions and the cleanup
8150 * for an ndlp on removal.
8153 lpfc_sli4_vport_delete_els_xri_aborted(struct lpfc_vport
*vport
)
8155 struct lpfc_hba
*phba
= vport
->phba
;
8156 struct lpfc_sglq
*sglq_entry
= NULL
, *sglq_next
= NULL
;
8157 unsigned long iflag
= 0;
8159 spin_lock_irqsave(&phba
->hbalock
, iflag
);
8160 spin_lock(&phba
->sli4_hba
.abts_sgl_list_lock
);
8161 list_for_each_entry_safe(sglq_entry
, sglq_next
,
8162 &phba
->sli4_hba
.lpfc_abts_els_sgl_list
, list
) {
8163 if (sglq_entry
->ndlp
&& sglq_entry
->ndlp
->vport
== vport
)
8164 sglq_entry
->ndlp
= NULL
;
8166 spin_unlock(&phba
->sli4_hba
.abts_sgl_list_lock
);
8167 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8172 * lpfc_sli4_els_xri_aborted - Slow-path process of els xri abort
8173 * @phba: pointer to lpfc hba data structure.
8174 * @axri: pointer to the els xri abort wcqe structure.
8176 * This routine is invoked by the worker thread to process a SLI4 slow-path
8180 lpfc_sli4_els_xri_aborted(struct lpfc_hba
*phba
,
8181 struct sli4_wcqe_xri_aborted
*axri
)
8183 uint16_t xri
= bf_get(lpfc_wcqe_xa_xri
, axri
);
8184 uint16_t rxid
= bf_get(lpfc_wcqe_xa_remote_xid
, axri
);
8187 struct lpfc_sglq
*sglq_entry
= NULL
, *sglq_next
= NULL
;
8188 unsigned long iflag
= 0;
8189 struct lpfc_nodelist
*ndlp
;
8190 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
8192 spin_lock_irqsave(&phba
->hbalock
, iflag
);
8193 spin_lock(&phba
->sli4_hba
.abts_sgl_list_lock
);
8194 list_for_each_entry_safe(sglq_entry
, sglq_next
,
8195 &phba
->sli4_hba
.lpfc_abts_els_sgl_list
, list
) {
8196 if (sglq_entry
->sli4_xritag
== xri
) {
8197 list_del(&sglq_entry
->list
);
8198 ndlp
= sglq_entry
->ndlp
;
8199 sglq_entry
->ndlp
= NULL
;
8200 spin_lock(&pring
->ring_lock
);
8201 list_add_tail(&sglq_entry
->list
,
8202 &phba
->sli4_hba
.lpfc_sgl_list
);
8203 sglq_entry
->state
= SGL_FREED
;
8204 spin_unlock(&pring
->ring_lock
);
8205 spin_unlock(&phba
->sli4_hba
.abts_sgl_list_lock
);
8206 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8207 lpfc_set_rrq_active(phba
, ndlp
,
8208 sglq_entry
->sli4_lxritag
,
8211 /* Check if TXQ queue needs to be serviced */
8212 if (!(list_empty(&pring
->txq
)))
8213 lpfc_worker_wake_up(phba
);
8217 spin_unlock(&phba
->sli4_hba
.abts_sgl_list_lock
);
8218 lxri
= lpfc_sli4_xri_inrange(phba
, xri
);
8219 if (lxri
== NO_XRI
) {
8220 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8223 spin_lock(&pring
->ring_lock
);
8224 sglq_entry
= __lpfc_get_active_sglq(phba
, lxri
);
8225 if (!sglq_entry
|| (sglq_entry
->sli4_xritag
!= xri
)) {
8226 spin_unlock(&pring
->ring_lock
);
8227 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8230 sglq_entry
->state
= SGL_XRI_ABORTED
;
8231 spin_unlock(&pring
->ring_lock
);
8232 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8236 /* lpfc_sli_abts_recover_port - Recover a port that failed a BLS_ABORT req.
8237 * @vport: pointer to virtual port object.
8238 * @ndlp: nodelist pointer for the impacted node.
8240 * The driver calls this routine in response to an SLI4 XRI ABORT CQE
8241 * or an SLI3 ASYNC_STATUS_CN event from the port. For either event,
8242 * the driver is required to send a LOGO to the remote node before it
8243 * attempts to recover its login to the remote node.
8246 lpfc_sli_abts_recover_port(struct lpfc_vport
*vport
,
8247 struct lpfc_nodelist
*ndlp
)
8249 struct Scsi_Host
*shost
;
8250 struct lpfc_hba
*phba
;
8251 unsigned long flags
= 0;
8253 shost
= lpfc_shost_from_vport(vport
);
8255 if (ndlp
->nlp_state
!= NLP_STE_MAPPED_NODE
) {
8256 lpfc_printf_log(phba
, KERN_INFO
,
8257 LOG_SLI
, "3093 No rport recovery needed. "
8258 "rport in state 0x%x\n", ndlp
->nlp_state
);
8261 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
8262 "3094 Start rport recovery on shost id 0x%x "
8263 "fc_id 0x%06x vpi 0x%x rpi 0x%x state 0x%x "
8265 shost
->host_no
, ndlp
->nlp_DID
,
8266 vport
->vpi
, ndlp
->nlp_rpi
, ndlp
->nlp_state
,
8269 * The rport is not responding. Remove the FCP-2 flag to prevent
8270 * an ADISC in the follow-up recovery code.
8272 spin_lock_irqsave(shost
->host_lock
, flags
);
8273 ndlp
->nlp_fcp_info
&= ~NLP_FCP_2_DEVICE
;
8274 spin_unlock_irqrestore(shost
->host_lock
, flags
);
8275 lpfc_issue_els_logo(vport
, ndlp
, 0);
8276 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_LOGO_ISSUE
);