1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2016 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
9 * This program is free software; you can redistribute it and/or *
10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
20 *******************************************************************/
21 /* See Fibre Channel protocol T11 FC-LS for details */
22 #include <linux/blkdev.h>
23 #include <linux/pci.h>
24 #include <linux/slab.h>
25 #include <linux/interrupt.h>
27 #include <scsi/scsi.h>
28 #include <scsi/scsi_device.h>
29 #include <scsi/scsi_host.h>
30 #include <scsi/scsi_transport_fc.h>
36 #include "lpfc_sli4.h"
38 #include "lpfc_disc.h"
39 #include "lpfc_scsi.h"
41 #include "lpfc_logmsg.h"
42 #include "lpfc_crtn.h"
43 #include "lpfc_vport.h"
44 #include "lpfc_debugfs.h"
46 static int lpfc_els_retry(struct lpfc_hba
*, struct lpfc_iocbq
*,
48 static void lpfc_cmpl_fabric_iocb(struct lpfc_hba
*, struct lpfc_iocbq
*,
50 static void lpfc_fabric_abort_vport(struct lpfc_vport
*vport
);
51 static int lpfc_issue_els_fdisc(struct lpfc_vport
*vport
,
52 struct lpfc_nodelist
*ndlp
, uint8_t retry
);
53 static int lpfc_issue_fabric_iocb(struct lpfc_hba
*phba
,
54 struct lpfc_iocbq
*iocb
);
56 static int lpfc_max_els_tries
= 3;
59 * lpfc_els_chk_latt - Check host link attention event for a vport
60 * @vport: pointer to a host virtual N_Port data structure.
62 * This routine checks whether there is an outstanding host link
63 * attention event during the discovery process with the @vport. It is done
64 * by reading the HBA's Host Attention (HA) register. If there is any host
65 * link attention events during this @vport's discovery process, the @vport
66 * shall be marked as FC_ABORT_DISCOVERY, a host link attention clear shall
67 * be issued if the link state is not already in host link cleared state,
68 * and a return code shall indicate whether the host link attention event
71 * Note that, if either the host link is in state LPFC_LINK_DOWN or @vport
72 * state in LPFC_VPORT_READY, the request for checking host link attention
73 * event will be ignored and a return code shall indicate no host link
74 * attention event had happened.
77 * 0 - no host link attention event happened
78 * 1 - host link attention event happened
81 lpfc_els_chk_latt(struct lpfc_vport
*vport
)
83 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
84 struct lpfc_hba
*phba
= vport
->phba
;
87 if (vport
->port_state
>= LPFC_VPORT_READY
||
88 phba
->link_state
== LPFC_LINK_DOWN
||
89 phba
->sli_rev
> LPFC_SLI_REV3
)
92 /* Read the HBA Host Attention Register */
93 if (lpfc_readl(phba
->HAregaddr
, &ha_copy
))
96 if (!(ha_copy
& HA_LATT
))
99 /* Pending Link Event during Discovery */
100 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
101 "0237 Pending Link Event during "
102 "Discovery: State x%x\n",
103 phba
->pport
->port_state
);
105 /* CLEAR_LA should re-enable link attention events and
106 * we should then immediately take a LATT event. The
107 * LATT processing should call lpfc_linkdown() which
108 * will cleanup any left over in-progress discovery
111 spin_lock_irq(shost
->host_lock
);
112 vport
->fc_flag
|= FC_ABORT_DISCOVERY
;
113 spin_unlock_irq(shost
->host_lock
);
115 if (phba
->link_state
!= LPFC_CLEAR_LA
)
116 lpfc_issue_clear_la(phba
, vport
);
122 * lpfc_prep_els_iocb - Allocate and prepare a lpfc iocb data structure
123 * @vport: pointer to a host virtual N_Port data structure.
124 * @expectRsp: flag indicating whether response is expected.
125 * @cmdSize: size of the ELS command.
126 * @retry: number of retries to the command IOCB when it fails.
127 * @ndlp: pointer to a node-list data structure.
128 * @did: destination identifier.
129 * @elscmd: the ELS command code.
131 * This routine is used for allocating a lpfc-IOCB data structure from
132 * the driver lpfc-IOCB free-list and prepare the IOCB with the parameters
133 * passed into the routine for discovery state machine to issue an Extended
134 * Link Service (ELS) commands. It is a generic lpfc-IOCB allocation
135 * and preparation routine that is used by all the discovery state machine
136 * routines and the ELS command-specific fields will be later set up by
137 * the individual discovery machine routines after calling this routine
138 * allocating and preparing a generic IOCB data structure. It fills in the
139 * Buffer Descriptor Entries (BDEs), allocates buffers for both command
140 * payload and response payload (if expected). The reference count on the
141 * ndlp is incremented by 1 and the reference to the ndlp is put into
142 * context1 of the IOCB data structure for this IOCB to hold the ndlp
143 * reference for the command's callback function to access later.
146 * Pointer to the newly allocated/prepared els iocb data structure
147 * NULL - when els iocb data structure allocation/preparation failed
150 lpfc_prep_els_iocb(struct lpfc_vport
*vport
, uint8_t expectRsp
,
151 uint16_t cmdSize
, uint8_t retry
,
152 struct lpfc_nodelist
*ndlp
, uint32_t did
,
155 struct lpfc_hba
*phba
= vport
->phba
;
156 struct lpfc_iocbq
*elsiocb
;
157 struct lpfc_dmabuf
*pcmd
, *prsp
, *pbuflist
;
158 struct ulp_bde64
*bpl
;
162 if (!lpfc_is_link_up(phba
))
165 /* Allocate buffer for command iocb */
166 elsiocb
= lpfc_sli_get_iocbq(phba
);
172 * If this command is for fabric controller and HBA running
173 * in FIP mode send FLOGI, FDISC and LOGO as FIP frames.
175 if ((did
== Fabric_DID
) &&
176 (phba
->hba_flag
& HBA_FIP_SUPPORT
) &&
177 ((elscmd
== ELS_CMD_FLOGI
) ||
178 (elscmd
== ELS_CMD_FDISC
) ||
179 (elscmd
== ELS_CMD_LOGO
)))
182 elsiocb
->iocb_flag
|=
183 ((LPFC_ELS_ID_FLOGI
<< LPFC_FIP_ELS_ID_SHIFT
)
184 & LPFC_FIP_ELS_ID_MASK
);
187 elsiocb
->iocb_flag
|=
188 ((LPFC_ELS_ID_FDISC
<< LPFC_FIP_ELS_ID_SHIFT
)
189 & LPFC_FIP_ELS_ID_MASK
);
192 elsiocb
->iocb_flag
|=
193 ((LPFC_ELS_ID_LOGO
<< LPFC_FIP_ELS_ID_SHIFT
)
194 & LPFC_FIP_ELS_ID_MASK
);
198 elsiocb
->iocb_flag
&= ~LPFC_FIP_ELS_ID_MASK
;
200 icmd
= &elsiocb
->iocb
;
202 /* fill in BDEs for command */
203 /* Allocate buffer for command payload */
204 pcmd
= kmalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
206 pcmd
->virt
= lpfc_mbuf_alloc(phba
, MEM_PRI
, &pcmd
->phys
);
207 if (!pcmd
|| !pcmd
->virt
)
208 goto els_iocb_free_pcmb_exit
;
210 INIT_LIST_HEAD(&pcmd
->list
);
212 /* Allocate buffer for response payload */
214 prsp
= kmalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
216 prsp
->virt
= lpfc_mbuf_alloc(phba
, MEM_PRI
,
218 if (!prsp
|| !prsp
->virt
)
219 goto els_iocb_free_prsp_exit
;
220 INIT_LIST_HEAD(&prsp
->list
);
224 /* Allocate buffer for Buffer ptr list */
225 pbuflist
= kmalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
227 pbuflist
->virt
= lpfc_mbuf_alloc(phba
, MEM_PRI
,
229 if (!pbuflist
|| !pbuflist
->virt
)
230 goto els_iocb_free_pbuf_exit
;
232 INIT_LIST_HEAD(&pbuflist
->list
);
235 icmd
->un
.elsreq64
.bdl
.addrHigh
= putPaddrHigh(pbuflist
->phys
);
236 icmd
->un
.elsreq64
.bdl
.addrLow
= putPaddrLow(pbuflist
->phys
);
237 icmd
->un
.elsreq64
.bdl
.bdeFlags
= BUFF_TYPE_BLP_64
;
238 icmd
->un
.elsreq64
.bdl
.bdeSize
= (2 * sizeof(struct ulp_bde64
));
240 icmd
->un
.elsreq64
.remoteID
= did
; /* DID */
241 icmd
->ulpCommand
= CMD_ELS_REQUEST64_CR
;
242 if (elscmd
== ELS_CMD_FLOGI
)
243 icmd
->ulpTimeout
= FF_DEF_RATOV
* 2;
245 icmd
->ulpTimeout
= phba
->fc_ratov
* 2;
247 icmd
->un
.xseq64
.bdl
.addrHigh
= putPaddrHigh(pbuflist
->phys
);
248 icmd
->un
.xseq64
.bdl
.addrLow
= putPaddrLow(pbuflist
->phys
);
249 icmd
->un
.xseq64
.bdl
.bdeFlags
= BUFF_TYPE_BLP_64
;
250 icmd
->un
.xseq64
.bdl
.bdeSize
= sizeof(struct ulp_bde64
);
251 icmd
->un
.xseq64
.xmit_els_remoteID
= did
; /* DID */
252 icmd
->ulpCommand
= CMD_XMIT_ELS_RSP64_CX
;
254 icmd
->ulpBdeCount
= 1;
256 icmd
->ulpClass
= CLASS3
;
259 * If we have NPIV enabled, we want to send ELS traffic by VPI.
260 * For SLI4, since the driver controls VPIs we also want to include
261 * all ELS pt2pt protocol traffic as well.
263 if ((phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) ||
264 ((phba
->sli_rev
== LPFC_SLI_REV4
) &&
265 (vport
->fc_flag
& FC_PT2PT
))) {
268 icmd
->un
.elsreq64
.myID
= vport
->fc_myDID
;
270 /* For ELS_REQUEST64_CR, use the VPI by default */
271 icmd
->ulpContext
= phba
->vpi_ids
[vport
->vpi
];
275 /* The CT field must be 0=INVALID_RPI for the ECHO cmd */
276 if (elscmd
== ELS_CMD_ECHO
)
277 icmd
->ulpCt_l
= 0; /* context = invalid RPI */
279 icmd
->ulpCt_l
= 1; /* context = VPI */
282 bpl
= (struct ulp_bde64
*) pbuflist
->virt
;
283 bpl
->addrLow
= le32_to_cpu(putPaddrLow(pcmd
->phys
));
284 bpl
->addrHigh
= le32_to_cpu(putPaddrHigh(pcmd
->phys
));
285 bpl
->tus
.f
.bdeSize
= cmdSize
;
286 bpl
->tus
.f
.bdeFlags
= 0;
287 bpl
->tus
.w
= le32_to_cpu(bpl
->tus
.w
);
291 bpl
->addrLow
= le32_to_cpu(putPaddrLow(prsp
->phys
));
292 bpl
->addrHigh
= le32_to_cpu(putPaddrHigh(prsp
->phys
));
293 bpl
->tus
.f
.bdeSize
= FCELSSIZE
;
294 bpl
->tus
.f
.bdeFlags
= BUFF_TYPE_BDE_64
;
295 bpl
->tus
.w
= le32_to_cpu(bpl
->tus
.w
);
298 /* prevent preparing iocb with NULL ndlp reference */
299 elsiocb
->context1
= lpfc_nlp_get(ndlp
);
300 if (!elsiocb
->context1
)
301 goto els_iocb_free_pbuf_exit
;
302 elsiocb
->context2
= pcmd
;
303 elsiocb
->context3
= pbuflist
;
304 elsiocb
->retry
= retry
;
305 elsiocb
->vport
= vport
;
306 elsiocb
->drvrTimeout
= (phba
->fc_ratov
<< 1) + LPFC_DRVR_TIMEOUT
;
309 list_add(&prsp
->list
, &pcmd
->list
);
312 /* Xmit ELS command <elsCmd> to remote NPORT <did> */
313 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
314 "0116 Xmit ELS command x%x to remote "
315 "NPORT x%x I/O tag: x%x, port state:x%x"
317 elscmd
, did
, elsiocb
->iotag
,
321 /* Xmit ELS response <elsCmd> to remote NPORT <did> */
322 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
323 "0117 Xmit ELS response x%x to remote "
324 "NPORT x%x I/O tag: x%x, size: x%x "
325 "port_state x%x fc_flag x%x\n",
326 elscmd
, ndlp
->nlp_DID
, elsiocb
->iotag
,
327 cmdSize
, vport
->port_state
,
332 els_iocb_free_pbuf_exit
:
334 lpfc_mbuf_free(phba
, prsp
->virt
, prsp
->phys
);
337 els_iocb_free_prsp_exit
:
338 lpfc_mbuf_free(phba
, pcmd
->virt
, pcmd
->phys
);
341 els_iocb_free_pcmb_exit
:
343 lpfc_sli_release_iocbq(phba
, elsiocb
);
348 * lpfc_issue_fabric_reglogin - Issue fabric registration login for a vport
349 * @vport: pointer to a host virtual N_Port data structure.
351 * This routine issues a fabric registration login for a @vport. An
352 * active ndlp node with Fabric_DID must already exist for this @vport.
353 * The routine invokes two mailbox commands to carry out fabric registration
354 * login through the HBA firmware: the first mailbox command requests the
355 * HBA to perform link configuration for the @vport; and the second mailbox
356 * command requests the HBA to perform the actual fabric registration login
360 * 0 - successfully issued fabric registration login for @vport
361 * -ENXIO -- failed to issue fabric registration login for @vport
364 lpfc_issue_fabric_reglogin(struct lpfc_vport
*vport
)
366 struct lpfc_hba
*phba
= vport
->phba
;
368 struct lpfc_dmabuf
*mp
;
369 struct lpfc_nodelist
*ndlp
;
370 struct serv_parm
*sp
;
374 sp
= &phba
->fc_fabparam
;
375 ndlp
= lpfc_findnode_did(vport
, Fabric_DID
);
376 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
)) {
381 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
387 vport
->port_state
= LPFC_FABRIC_CFG_LINK
;
388 lpfc_config_link(phba
, mbox
);
389 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
392 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
393 if (rc
== MBX_NOT_FINISHED
) {
398 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
403 rc
= lpfc_reg_rpi(phba
, vport
->vpi
, Fabric_DID
, (uint8_t *)sp
, mbox
,
410 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_fabric_reg_login
;
412 /* increment the reference count on ndlp to hold reference
413 * for the callback routine.
415 mbox
->context2
= lpfc_nlp_get(ndlp
);
417 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
418 if (rc
== MBX_NOT_FINISHED
) {
420 goto fail_issue_reg_login
;
425 fail_issue_reg_login
:
426 /* decrement the reference count on ndlp just incremented
427 * for the failed mbox command.
430 mp
= (struct lpfc_dmabuf
*) mbox
->context1
;
431 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
434 mempool_free(mbox
, phba
->mbox_mem_pool
);
437 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
438 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
439 "0249 Cannot issue Register Fabric login: Err %d\n", err
);
444 * lpfc_issue_reg_vfi - Register VFI for this vport's fabric login
445 * @vport: pointer to a host virtual N_Port data structure.
447 * This routine issues a REG_VFI mailbox for the vfi, vpi, fcfi triplet for
448 * the @vport. This mailbox command is necessary for SLI4 port only.
451 * 0 - successfully issued REG_VFI for @vport
452 * A failure code otherwise.
455 lpfc_issue_reg_vfi(struct lpfc_vport
*vport
)
457 struct lpfc_hba
*phba
= vport
->phba
;
458 LPFC_MBOXQ_t
*mboxq
= NULL
;
459 struct lpfc_nodelist
*ndlp
;
460 struct lpfc_dmabuf
*dmabuf
= NULL
;
463 /* move forward in case of SLI4 FC port loopback test and pt2pt mode */
464 if ((phba
->sli_rev
== LPFC_SLI_REV4
) &&
465 !(phba
->link_flag
& LS_LOOPBACK_MODE
) &&
466 !(vport
->fc_flag
& FC_PT2PT
)) {
467 ndlp
= lpfc_findnode_did(vport
, Fabric_DID
);
468 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
)) {
474 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
480 /* Supply CSP's only if we are fabric connect or pt-to-pt connect */
481 if ((vport
->fc_flag
& FC_FABRIC
) || (vport
->fc_flag
& FC_PT2PT
)) {
482 dmabuf
= kzalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
487 dmabuf
->virt
= lpfc_mbuf_alloc(phba
, MEM_PRI
, &dmabuf
->phys
);
492 memcpy(dmabuf
->virt
, &phba
->fc_fabparam
,
493 sizeof(struct serv_parm
));
496 vport
->port_state
= LPFC_FABRIC_CFG_LINK
;
498 lpfc_reg_vfi(mboxq
, vport
, dmabuf
->phys
);
500 lpfc_reg_vfi(mboxq
, vport
, 0);
502 mboxq
->mbox_cmpl
= lpfc_mbx_cmpl_reg_vfi
;
503 mboxq
->vport
= vport
;
504 mboxq
->context1
= dmabuf
;
505 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
506 if (rc
== MBX_NOT_FINISHED
) {
514 mempool_free(mboxq
, phba
->mbox_mem_pool
);
517 lpfc_mbuf_free(phba
, dmabuf
->virt
, dmabuf
->phys
);
521 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
522 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
523 "0289 Issue Register VFI failed: Err %d\n", rc
);
528 * lpfc_issue_unreg_vfi - Unregister VFI for this vport's fabric login
529 * @vport: pointer to a host virtual N_Port data structure.
531 * This routine issues a UNREG_VFI mailbox with the vfi, vpi, fcfi triplet for
532 * the @vport. This mailbox command is necessary for SLI4 port only.
535 * 0 - successfully issued REG_VFI for @vport
536 * A failure code otherwise.
539 lpfc_issue_unreg_vfi(struct lpfc_vport
*vport
)
541 struct lpfc_hba
*phba
= vport
->phba
;
542 struct Scsi_Host
*shost
;
546 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
548 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
|LOG_MBOX
,
549 "2556 UNREG_VFI mbox allocation failed"
550 "HBA state x%x\n", phba
->pport
->port_state
);
554 lpfc_unreg_vfi(mboxq
, vport
);
555 mboxq
->vport
= vport
;
556 mboxq
->mbox_cmpl
= lpfc_unregister_vfi_cmpl
;
558 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
559 if (rc
== MBX_NOT_FINISHED
) {
560 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
|LOG_MBOX
,
561 "2557 UNREG_VFI issue mbox failed rc x%x "
563 rc
, phba
->pport
->port_state
);
564 mempool_free(mboxq
, phba
->mbox_mem_pool
);
568 shost
= lpfc_shost_from_vport(vport
);
569 spin_lock_irq(shost
->host_lock
);
570 vport
->fc_flag
&= ~FC_VFI_REGISTERED
;
571 spin_unlock_irq(shost
->host_lock
);
576 * lpfc_check_clean_addr_bit - Check whether assigned FCID is clean.
577 * @vport: pointer to a host virtual N_Port data structure.
578 * @sp: pointer to service parameter data structure.
580 * This routine is called from FLOGI/FDISC completion handler functions.
581 * lpfc_check_clean_addr_bit return 1 when FCID/Fabric portname/ Fabric
582 * node nodename is changed in the completion service parameter else return
583 * 0. This function also set flag in the vport data structure to delay
584 * NP_Port discovery after the FLOGI/FDISC completion if Clean address bit
585 * in FLOGI/FDISC response is cleared and FCID/Fabric portname/ Fabric
586 * node nodename is changed in the completion service parameter.
589 * 0 - FCID and Fabric Nodename and Fabric portname is not changed.
590 * 1 - FCID or Fabric Nodename or Fabric portname is changed.
594 lpfc_check_clean_addr_bit(struct lpfc_vport
*vport
,
595 struct serv_parm
*sp
)
597 struct lpfc_hba
*phba
= vport
->phba
;
598 uint8_t fabric_param_changed
= 0;
599 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
601 if ((vport
->fc_prevDID
!= vport
->fc_myDID
) ||
602 memcmp(&vport
->fabric_portname
, &sp
->portName
,
603 sizeof(struct lpfc_name
)) ||
604 memcmp(&vport
->fabric_nodename
, &sp
->nodeName
,
605 sizeof(struct lpfc_name
)))
606 fabric_param_changed
= 1;
609 * Word 1 Bit 31 in common service parameter is overloaded.
610 * Word 1 Bit 31 in FLOGI request is multiple NPort request
611 * Word 1 Bit 31 in FLOGI response is clean address bit
613 * If fabric parameter is changed and clean address bit is
614 * cleared delay nport discovery if
615 * - vport->fc_prevDID != 0 (not initial discovery) OR
616 * - lpfc_delay_discovery module parameter is set.
618 if (fabric_param_changed
&& !sp
->cmn
.clean_address_bit
&&
619 (vport
->fc_prevDID
|| phba
->cfg_delay_discovery
)) {
620 spin_lock_irq(shost
->host_lock
);
621 vport
->fc_flag
|= FC_DISC_DELAYED
;
622 spin_unlock_irq(shost
->host_lock
);
625 return fabric_param_changed
;
630 * lpfc_cmpl_els_flogi_fabric - Completion function for flogi to a fabric port
631 * @vport: pointer to a host virtual N_Port data structure.
632 * @ndlp: pointer to a node-list data structure.
633 * @sp: pointer to service parameter data structure.
634 * @irsp: pointer to the IOCB within the lpfc response IOCB.
636 * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback
637 * function to handle the completion of a Fabric Login (FLOGI) into a fabric
638 * port in a fabric topology. It properly sets up the parameters to the @ndlp
639 * from the IOCB response. It also check the newly assigned N_Port ID to the
640 * @vport against the previously assigned N_Port ID. If it is different from
641 * the previously assigned Destination ID (DID), the lpfc_unreg_rpi() routine
642 * is invoked on all the remaining nodes with the @vport to unregister the
643 * Remote Port Indicators (RPIs). Finally, the lpfc_issue_fabric_reglogin()
644 * is invoked to register login to the fabric.
647 * 0 - Success (currently, always return 0)
650 lpfc_cmpl_els_flogi_fabric(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
651 struct serv_parm
*sp
, IOCB_t
*irsp
)
653 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
654 struct lpfc_hba
*phba
= vport
->phba
;
655 struct lpfc_nodelist
*np
;
656 struct lpfc_nodelist
*next_np
;
657 uint8_t fabric_param_changed
;
659 spin_lock_irq(shost
->host_lock
);
660 vport
->fc_flag
|= FC_FABRIC
;
661 spin_unlock_irq(shost
->host_lock
);
663 phba
->fc_edtov
= be32_to_cpu(sp
->cmn
.e_d_tov
);
664 if (sp
->cmn
.edtovResolution
) /* E_D_TOV ticks are in nanoseconds */
665 phba
->fc_edtov
= (phba
->fc_edtov
+ 999999) / 1000000;
667 phba
->fc_edtovResol
= sp
->cmn
.edtovResolution
;
668 phba
->fc_ratov
= (be32_to_cpu(sp
->cmn
.w2
.r_a_tov
) + 999) / 1000;
670 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
671 spin_lock_irq(shost
->host_lock
);
672 vport
->fc_flag
|= FC_PUBLIC_LOOP
;
673 spin_unlock_irq(shost
->host_lock
);
676 vport
->fc_myDID
= irsp
->un
.ulpWord
[4] & Mask_DID
;
677 memcpy(&ndlp
->nlp_portname
, &sp
->portName
, sizeof(struct lpfc_name
));
678 memcpy(&ndlp
->nlp_nodename
, &sp
->nodeName
, sizeof(struct lpfc_name
));
679 ndlp
->nlp_class_sup
= 0;
680 if (sp
->cls1
.classValid
)
681 ndlp
->nlp_class_sup
|= FC_COS_CLASS1
;
682 if (sp
->cls2
.classValid
)
683 ndlp
->nlp_class_sup
|= FC_COS_CLASS2
;
684 if (sp
->cls3
.classValid
)
685 ndlp
->nlp_class_sup
|= FC_COS_CLASS3
;
686 if (sp
->cls4
.classValid
)
687 ndlp
->nlp_class_sup
|= FC_COS_CLASS4
;
688 ndlp
->nlp_maxframe
= ((sp
->cmn
.bbRcvSizeMsb
& 0x0F) << 8) |
689 sp
->cmn
.bbRcvSizeLsb
;
691 fabric_param_changed
= lpfc_check_clean_addr_bit(vport
, sp
);
692 if (fabric_param_changed
) {
693 /* Reset FDMI attribute masks based on config parameter */
694 if (phba
->cfg_enable_SmartSAN
||
695 (phba
->cfg_fdmi_on
== LPFC_FDMI_SUPPORT
)) {
696 /* Setup appropriate attribute masks */
697 vport
->fdmi_hba_mask
= LPFC_FDMI2_HBA_ATTR
;
698 if (phba
->cfg_enable_SmartSAN
)
699 vport
->fdmi_port_mask
= LPFC_FDMI2_SMART_ATTR
;
701 vport
->fdmi_port_mask
= LPFC_FDMI2_PORT_ATTR
;
703 vport
->fdmi_hba_mask
= 0;
704 vport
->fdmi_port_mask
= 0;
708 memcpy(&vport
->fabric_portname
, &sp
->portName
,
709 sizeof(struct lpfc_name
));
710 memcpy(&vport
->fabric_nodename
, &sp
->nodeName
,
711 sizeof(struct lpfc_name
));
712 memcpy(&phba
->fc_fabparam
, sp
, sizeof(struct serv_parm
));
714 if (phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) {
715 if (sp
->cmn
.response_multiple_NPort
) {
716 lpfc_printf_vlog(vport
, KERN_WARNING
,
718 "1816 FLOGI NPIV supported, "
719 "response data 0x%x\n",
720 sp
->cmn
.response_multiple_NPort
);
721 spin_lock_irq(&phba
->hbalock
);
722 phba
->link_flag
|= LS_NPIV_FAB_SUPPORTED
;
723 spin_unlock_irq(&phba
->hbalock
);
725 /* Because we asked f/w for NPIV it still expects us
726 to call reg_vnpid atleast for the physcial host */
727 lpfc_printf_vlog(vport
, KERN_WARNING
,
729 "1817 Fabric does not support NPIV "
730 "- configuring single port mode.\n");
731 spin_lock_irq(&phba
->hbalock
);
732 phba
->link_flag
&= ~LS_NPIV_FAB_SUPPORTED
;
733 spin_unlock_irq(&phba
->hbalock
);
738 * For FC we need to do some special processing because of the SLI
739 * Port's default settings of the Common Service Parameters.
741 if ((phba
->sli_rev
== LPFC_SLI_REV4
) &&
742 (phba
->sli4_hba
.lnk_info
.lnk_tp
== LPFC_LNK_TYPE_FC
)) {
743 /* If physical FC port changed, unreg VFI and ALL VPIs / RPIs */
744 if (fabric_param_changed
)
745 lpfc_unregister_fcf_prep(phba
);
747 /* This should just update the VFI CSPs*/
748 if (vport
->fc_flag
& FC_VFI_REGISTERED
)
749 lpfc_issue_reg_vfi(vport
);
752 if (fabric_param_changed
&&
753 !(vport
->fc_flag
& FC_VPORT_NEEDS_REG_VPI
)) {
755 /* If our NportID changed, we need to ensure all
756 * remaining NPORTs get unreg_login'ed.
758 list_for_each_entry_safe(np
, next_np
,
759 &vport
->fc_nodes
, nlp_listp
) {
760 if (!NLP_CHK_NODE_ACT(np
))
762 if ((np
->nlp_state
!= NLP_STE_NPR_NODE
) ||
763 !(np
->nlp_flag
& NLP_NPR_ADISC
))
765 spin_lock_irq(shost
->host_lock
);
766 np
->nlp_flag
&= ~NLP_NPR_ADISC
;
767 spin_unlock_irq(shost
->host_lock
);
768 lpfc_unreg_rpi(vport
, np
);
770 lpfc_cleanup_pending_mbox(vport
);
772 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
773 lpfc_sli4_unreg_all_rpis(vport
);
774 lpfc_mbx_unreg_vpi(vport
);
775 spin_lock_irq(shost
->host_lock
);
776 vport
->fc_flag
|= FC_VPORT_NEEDS_INIT_VPI
;
777 spin_unlock_irq(shost
->host_lock
);
781 * For SLI3 and SLI4, the VPI needs to be reregistered in
782 * response to this fabric parameter change event.
784 spin_lock_irq(shost
->host_lock
);
785 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
786 spin_unlock_irq(shost
->host_lock
);
787 } else if ((phba
->sli_rev
== LPFC_SLI_REV4
) &&
788 !(vport
->fc_flag
& FC_VPORT_NEEDS_REG_VPI
)) {
790 * Driver needs to re-reg VPI in order for f/w
791 * to update the MAC address.
793 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_UNMAPPED_NODE
);
794 lpfc_register_new_vport(phba
, vport
, ndlp
);
798 if (phba
->sli_rev
< LPFC_SLI_REV4
) {
799 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_REG_LOGIN_ISSUE
);
800 if (phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
&&
801 vport
->fc_flag
& FC_VPORT_NEEDS_REG_VPI
)
802 lpfc_register_new_vport(phba
, vport
, ndlp
);
804 lpfc_issue_fabric_reglogin(vport
);
806 ndlp
->nlp_type
|= NLP_FABRIC
;
807 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_UNMAPPED_NODE
);
808 if ((!(vport
->fc_flag
& FC_VPORT_NEEDS_REG_VPI
)) &&
809 (vport
->vpi_state
& LPFC_VPI_REGISTERED
)) {
810 lpfc_start_fdiscs(phba
);
811 lpfc_do_scr_ns_plogi(phba
, vport
);
812 } else if (vport
->fc_flag
& FC_VFI_REGISTERED
)
813 lpfc_issue_init_vpi(vport
);
815 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
816 "3135 Need register VFI: (x%x/%x)\n",
817 vport
->fc_prevDID
, vport
->fc_myDID
);
818 lpfc_issue_reg_vfi(vport
);
825 * lpfc_cmpl_els_flogi_nport - Completion function for flogi to an N_Port
826 * @vport: pointer to a host virtual N_Port data structure.
827 * @ndlp: pointer to a node-list data structure.
828 * @sp: pointer to service parameter data structure.
830 * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback
831 * function to handle the completion of a Fabric Login (FLOGI) into an N_Port
832 * in a point-to-point topology. First, the @vport's N_Port Name is compared
833 * with the received N_Port Name: if the @vport's N_Port Name is greater than
834 * the received N_Port Name lexicographically, this node shall assign local
835 * N_Port ID (PT2PT_LocalID: 1) and remote N_Port ID (PT2PT_RemoteID: 2) and
836 * will send out Port Login (PLOGI) with the N_Port IDs assigned. Otherwise,
837 * this node shall just wait for the remote node to issue PLOGI and assign
845 lpfc_cmpl_els_flogi_nport(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
846 struct serv_parm
*sp
)
848 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
849 struct lpfc_hba
*phba
= vport
->phba
;
853 spin_lock_irq(shost
->host_lock
);
854 vport
->fc_flag
&= ~(FC_FABRIC
| FC_PUBLIC_LOOP
);
855 vport
->fc_flag
|= FC_PT2PT
;
856 spin_unlock_irq(shost
->host_lock
);
858 /* If physical FC port changed, unreg VFI and ALL VPIs / RPIs */
859 if ((phba
->sli_rev
== LPFC_SLI_REV4
) && phba
->fc_topology_changed
) {
860 lpfc_unregister_fcf_prep(phba
);
862 spin_lock_irq(shost
->host_lock
);
863 vport
->fc_flag
&= ~FC_VFI_REGISTERED
;
864 spin_unlock_irq(shost
->host_lock
);
865 phba
->fc_topology_changed
= 0;
868 rc
= memcmp(&vport
->fc_portname
, &sp
->portName
,
869 sizeof(vport
->fc_portname
));
872 /* This side will initiate the PLOGI */
873 spin_lock_irq(shost
->host_lock
);
874 vport
->fc_flag
|= FC_PT2PT_PLOGI
;
875 spin_unlock_irq(shost
->host_lock
);
878 * N_Port ID cannot be 0, set our Id to LocalID
879 * the other side will be RemoteID.
884 vport
->fc_myDID
= PT2PT_LocalID
;
886 /* Decrement ndlp reference count indicating that ndlp can be
887 * safely released when other references to it are done.
891 ndlp
= lpfc_findnode_did(vport
, PT2PT_RemoteID
);
894 * Cannot find existing Fabric ndlp, so allocate a
897 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
900 lpfc_nlp_init(vport
, ndlp
, PT2PT_RemoteID
);
901 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
902 ndlp
= lpfc_enable_node(vport
, ndlp
,
903 NLP_STE_UNUSED_NODE
);
908 memcpy(&ndlp
->nlp_portname
, &sp
->portName
,
909 sizeof(struct lpfc_name
));
910 memcpy(&ndlp
->nlp_nodename
, &sp
->nodeName
,
911 sizeof(struct lpfc_name
));
912 /* Set state will put ndlp onto node list if not already done */
913 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
914 spin_lock_irq(shost
->host_lock
);
915 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
916 spin_unlock_irq(shost
->host_lock
);
918 /* This side will wait for the PLOGI, decrement ndlp reference
919 * count indicating that ndlp can be released when other
920 * references to it are done.
924 /* If we are pt2pt with another NPort, force NPIV off! */
925 phba
->sli3_options
&= ~LPFC_SLI3_NPIV_ENABLED
;
927 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
931 lpfc_config_link(phba
, mbox
);
933 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_local_config_link
;
935 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
936 if (rc
== MBX_NOT_FINISHED
) {
937 mempool_free(mbox
, phba
->mbox_mem_pool
);
947 * lpfc_cmpl_els_flogi - Completion callback function for flogi
948 * @phba: pointer to lpfc hba data structure.
949 * @cmdiocb: pointer to lpfc command iocb data structure.
950 * @rspiocb: pointer to lpfc response iocb data structure.
952 * This routine is the top-level completion callback function for issuing
953 * a Fabric Login (FLOGI) command. If the response IOCB reported error,
954 * the lpfc_els_retry() routine shall be invoked to retry the FLOGI. If
955 * retry has been made (either immediately or delayed with lpfc_els_retry()
956 * returning 1), the command IOCB will be released and function returned.
957 * If the retry attempt has been given up (possibly reach the maximum
958 * number of retries), one additional decrement of ndlp reference shall be
959 * invoked before going out after releasing the command IOCB. This will
960 * actually release the remote node (Note, lpfc_els_free_iocb() will also
961 * invoke one decrement of ndlp reference count). If no error reported in
962 * the IOCB status, the command Port ID field is used to determine whether
963 * this is a point-to-point topology or a fabric topology: if the Port ID
964 * field is assigned, it is a fabric topology; otherwise, it is a
965 * point-to-point topology. The routine lpfc_cmpl_els_flogi_fabric() or
966 * lpfc_cmpl_els_flogi_nport() shall be invoked accordingly to handle the
967 * specific topology completion conditions.
970 lpfc_cmpl_els_flogi(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
971 struct lpfc_iocbq
*rspiocb
)
973 struct lpfc_vport
*vport
= cmdiocb
->vport
;
974 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
975 IOCB_t
*irsp
= &rspiocb
->iocb
;
976 struct lpfc_nodelist
*ndlp
= cmdiocb
->context1
;
977 struct lpfc_dmabuf
*pcmd
= cmdiocb
->context2
, *prsp
;
978 struct serv_parm
*sp
;
982 /* Check to see if link went down during discovery */
983 if (lpfc_els_chk_latt(vport
)) {
984 /* One additional decrement on node reference count to
985 * trigger the release of the node
991 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
992 "FLOGI cmpl: status:x%x/x%x state:x%x",
993 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
996 if (irsp
->ulpStatus
) {
998 * In case of FIP mode, perform roundrobin FCF failover
999 * due to new FCF discovery
1001 if ((phba
->hba_flag
& HBA_FIP_SUPPORT
) &&
1002 (phba
->fcf
.fcf_flag
& FCF_DISCOVERY
)) {
1003 if (phba
->link_state
< LPFC_LINK_UP
)
1004 goto stop_rr_fcf_flogi
;
1005 if ((phba
->fcoe_cvl_eventtag_attn
==
1006 phba
->fcoe_cvl_eventtag
) &&
1007 (irsp
->ulpStatus
== IOSTAT_LOCAL_REJECT
) &&
1008 ((irsp
->un
.ulpWord
[4] & IOERR_PARAM_MASK
) ==
1010 goto stop_rr_fcf_flogi
;
1012 phba
->fcoe_cvl_eventtag_attn
=
1013 phba
->fcoe_cvl_eventtag
;
1014 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
| LOG_ELS
,
1015 "2611 FLOGI failed on FCF (x%x), "
1016 "status:x%x/x%x, tmo:x%x, perform "
1017 "roundrobin FCF failover\n",
1018 phba
->fcf
.current_rec
.fcf_indx
,
1019 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
1021 lpfc_sli4_set_fcf_flogi_fail(phba
,
1022 phba
->fcf
.current_rec
.fcf_indx
);
1023 fcf_index
= lpfc_sli4_fcf_rr_next_index_get(phba
);
1024 rc
= lpfc_sli4_fcf_rr_next_proc(vport
, fcf_index
);
1031 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
1032 "2858 FLOGI failure Status:x%x/x%x TMO:x%x "
1034 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
1035 irsp
->ulpTimeout
, phba
->hba_flag
,
1036 phba
->fcf
.fcf_flag
);
1038 /* Check for retry */
1039 if (lpfc_els_retry(phba
, cmdiocb
, rspiocb
))
1043 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
1044 "0100 FLOGI failure Status:x%x/x%x TMO:x%x\n",
1045 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
1048 /* FLOGI failed, so there is no fabric */
1049 spin_lock_irq(shost
->host_lock
);
1050 vport
->fc_flag
&= ~(FC_FABRIC
| FC_PUBLIC_LOOP
);
1051 spin_unlock_irq(shost
->host_lock
);
1053 /* If private loop, then allow max outstanding els to be
1054 * LPFC_MAX_DISC_THREADS (32). Scanning in the case of no
1055 * alpa map would take too long otherwise.
1057 if (phba
->alpa_map
[0] == 0)
1058 vport
->cfg_discovery_threads
= LPFC_MAX_DISC_THREADS
;
1059 if ((phba
->sli_rev
== LPFC_SLI_REV4
) &&
1060 (!(vport
->fc_flag
& FC_VFI_REGISTERED
) ||
1061 (vport
->fc_prevDID
!= vport
->fc_myDID
) ||
1062 phba
->fc_topology_changed
)) {
1063 if (vport
->fc_flag
& FC_VFI_REGISTERED
) {
1064 if (phba
->fc_topology_changed
) {
1065 lpfc_unregister_fcf_prep(phba
);
1066 spin_lock_irq(shost
->host_lock
);
1067 vport
->fc_flag
&= ~FC_VFI_REGISTERED
;
1068 spin_unlock_irq(shost
->host_lock
);
1069 phba
->fc_topology_changed
= 0;
1071 lpfc_sli4_unreg_all_rpis(vport
);
1075 /* Do not register VFI if the driver aborted FLOGI */
1076 if (!lpfc_error_lost_link(irsp
))
1077 lpfc_issue_reg_vfi(vport
);
1083 spin_lock_irq(shost
->host_lock
);
1084 vport
->fc_flag
&= ~FC_VPORT_CVL_RCVD
;
1085 vport
->fc_flag
&= ~FC_VPORT_LOGO_RCVD
;
1086 spin_unlock_irq(shost
->host_lock
);
1089 * The FLogI succeeded. Sync the data for the CPU before
1092 prsp
= list_get_first(&pcmd
->list
, struct lpfc_dmabuf
, list
);
1095 sp
= prsp
->virt
+ sizeof(uint32_t);
1097 /* FLOGI completes successfully */
1098 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
1099 "0101 FLOGI completes successfully, I/O tag:x%x, "
1100 "Data: x%x x%x x%x x%x x%x x%x\n", cmdiocb
->iotag
,
1101 irsp
->un
.ulpWord
[4], sp
->cmn
.e_d_tov
,
1102 sp
->cmn
.w2
.r_a_tov
, sp
->cmn
.edtovResolution
,
1103 vport
->port_state
, vport
->fc_flag
);
1105 if (vport
->port_state
== LPFC_FLOGI
) {
1107 * If Common Service Parameters indicate Nport
1108 * we are point to point, if Fport we are Fabric.
1111 rc
= lpfc_cmpl_els_flogi_fabric(vport
, ndlp
, sp
, irsp
);
1112 else if (!(phba
->hba_flag
& HBA_FCOE_MODE
))
1113 rc
= lpfc_cmpl_els_flogi_nport(vport
, ndlp
, sp
);
1115 lpfc_printf_vlog(vport
, KERN_ERR
,
1117 "2831 FLOGI response with cleared Fabric "
1118 "bit fcf_index 0x%x "
1119 "Switch Name %02x%02x%02x%02x%02x%02x%02x%02x "
1121 "%02x%02x%02x%02x%02x%02x%02x%02x\n",
1122 phba
->fcf
.current_rec
.fcf_indx
,
1123 phba
->fcf
.current_rec
.switch_name
[0],
1124 phba
->fcf
.current_rec
.switch_name
[1],
1125 phba
->fcf
.current_rec
.switch_name
[2],
1126 phba
->fcf
.current_rec
.switch_name
[3],
1127 phba
->fcf
.current_rec
.switch_name
[4],
1128 phba
->fcf
.current_rec
.switch_name
[5],
1129 phba
->fcf
.current_rec
.switch_name
[6],
1130 phba
->fcf
.current_rec
.switch_name
[7],
1131 phba
->fcf
.current_rec
.fabric_name
[0],
1132 phba
->fcf
.current_rec
.fabric_name
[1],
1133 phba
->fcf
.current_rec
.fabric_name
[2],
1134 phba
->fcf
.current_rec
.fabric_name
[3],
1135 phba
->fcf
.current_rec
.fabric_name
[4],
1136 phba
->fcf
.current_rec
.fabric_name
[5],
1137 phba
->fcf
.current_rec
.fabric_name
[6],
1138 phba
->fcf
.current_rec
.fabric_name
[7]);
1140 spin_lock_irq(&phba
->hbalock
);
1141 phba
->fcf
.fcf_flag
&= ~FCF_DISCOVERY
;
1142 phba
->hba_flag
&= ~(FCF_RR_INPROG
| HBA_DEVLOSS_TMO
);
1143 spin_unlock_irq(&phba
->hbalock
);
1147 /* Mark the FCF discovery process done */
1148 if (phba
->hba_flag
& HBA_FIP_SUPPORT
)
1149 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_FIP
|
1151 "2769 FLOGI to FCF (x%x) "
1152 "completed successfully\n",
1153 phba
->fcf
.current_rec
.fcf_indx
);
1154 spin_lock_irq(&phba
->hbalock
);
1155 phba
->fcf
.fcf_flag
&= ~FCF_DISCOVERY
;
1156 phba
->hba_flag
&= ~(FCF_RR_INPROG
| HBA_DEVLOSS_TMO
);
1157 spin_unlock_irq(&phba
->hbalock
);
1163 spin_lock_irq(&phba
->hbalock
);
1164 phba
->fcf
.fcf_flag
&= ~FCF_DISCOVERY
;
1165 spin_unlock_irq(&phba
->hbalock
);
1169 if (!lpfc_error_lost_link(irsp
)) {
1170 /* FLOGI failed, so just use loop map to make discovery list */
1171 lpfc_disc_list_loopmap(vport
);
1173 /* Start discovery */
1174 lpfc_disc_start(vport
);
1175 } else if (((irsp
->ulpStatus
!= IOSTAT_LOCAL_REJECT
) ||
1176 (((irsp
->un
.ulpWord
[4] & IOERR_PARAM_MASK
) !=
1177 IOERR_SLI_ABORTED
) &&
1178 ((irsp
->un
.ulpWord
[4] & IOERR_PARAM_MASK
) !=
1179 IOERR_SLI_DOWN
))) &&
1180 (phba
->link_state
!= LPFC_CLEAR_LA
)) {
1181 /* If FLOGI failed enable link interrupt. */
1182 lpfc_issue_clear_la(phba
, vport
);
1185 lpfc_els_free_iocb(phba
, cmdiocb
);
1189 * lpfc_issue_els_flogi - Issue an flogi iocb command for a vport
1190 * @vport: pointer to a host virtual N_Port data structure.
1191 * @ndlp: pointer to a node-list data structure.
1192 * @retry: number of retries to the command IOCB.
1194 * This routine issues a Fabric Login (FLOGI) Request ELS command
1195 * for a @vport. The initiator service parameters are put into the payload
1196 * of the FLOGI Request IOCB and the top-level callback function pointer
1197 * to lpfc_cmpl_els_flogi() routine is put to the IOCB completion callback
1198 * function field. The lpfc_issue_fabric_iocb routine is invoked to send
1199 * out FLOGI ELS command with one outstanding fabric IOCB at a time.
1201 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
1202 * will be incremented by 1 for holding the ndlp and the reference to ndlp
1203 * will be stored into the context1 field of the IOCB for the completion
1204 * callback function to the FLOGI ELS command.
1207 * 0 - successfully issued flogi iocb for @vport
1208 * 1 - failed to issue flogi iocb for @vport
1211 lpfc_issue_els_flogi(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
1214 struct lpfc_hba
*phba
= vport
->phba
;
1215 struct serv_parm
*sp
;
1217 struct lpfc_iocbq
*elsiocb
;
1223 cmdsize
= (sizeof(uint32_t) + sizeof(struct serv_parm
));
1224 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
,
1225 ndlp
->nlp_DID
, ELS_CMD_FLOGI
);
1230 icmd
= &elsiocb
->iocb
;
1231 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
1233 /* For FLOGI request, remainder of payload is service parameters */
1234 *((uint32_t *) (pcmd
)) = ELS_CMD_FLOGI
;
1235 pcmd
+= sizeof(uint32_t);
1236 memcpy(pcmd
, &vport
->fc_sparam
, sizeof(struct serv_parm
));
1237 sp
= (struct serv_parm
*) pcmd
;
1239 /* Setup CSPs accordingly for Fabric */
1240 sp
->cmn
.e_d_tov
= 0;
1241 sp
->cmn
.w2
.r_a_tov
= 0;
1242 sp
->cmn
.virtual_fabric_support
= 0;
1243 sp
->cls1
.classValid
= 0;
1244 if (sp
->cmn
.fcphLow
< FC_PH3
)
1245 sp
->cmn
.fcphLow
= FC_PH3
;
1246 if (sp
->cmn
.fcphHigh
< FC_PH3
)
1247 sp
->cmn
.fcphHigh
= FC_PH3
;
1249 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
1250 if (bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
) ==
1251 LPFC_SLI_INTF_IF_TYPE_0
) {
1252 elsiocb
->iocb
.ulpCt_h
= ((SLI4_CT_FCFI
>> 1) & 1);
1253 elsiocb
->iocb
.ulpCt_l
= (SLI4_CT_FCFI
& 1);
1254 /* FLOGI needs to be 3 for WQE FCFI */
1255 /* Set the fcfi to the fcfi we registered with */
1256 elsiocb
->iocb
.ulpContext
= phba
->fcf
.fcfi
;
1258 /* Can't do SLI4 class2 without support sequence coalescing */
1259 sp
->cls2
.classValid
= 0;
1260 sp
->cls2
.seqDelivery
= 0;
1262 /* Historical, setting sequential-delivery bit for SLI3 */
1263 sp
->cls2
.seqDelivery
= (sp
->cls2
.classValid
) ? 1 : 0;
1264 sp
->cls3
.seqDelivery
= (sp
->cls3
.classValid
) ? 1 : 0;
1265 if (phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) {
1266 sp
->cmn
.request_multiple_Nport
= 1;
1267 /* For FLOGI, Let FLOGI rsp set the NPortID for VPI 0 */
1271 sp
->cmn
.request_multiple_Nport
= 0;
1274 if (phba
->fc_topology
!= LPFC_TOPOLOGY_LOOP
) {
1275 icmd
->un
.elsreq64
.myID
= 0;
1276 icmd
->un
.elsreq64
.fl
= 1;
1279 tmo
= phba
->fc_ratov
;
1280 phba
->fc_ratov
= LPFC_DISC_FLOGI_TMO
;
1281 lpfc_set_disctmo(vport
);
1282 phba
->fc_ratov
= tmo
;
1284 phba
->fc_stat
.elsXmitFLOGI
++;
1285 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_flogi
;
1287 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
1288 "Issue FLOGI: opt:x%x",
1289 phba
->sli3_options
, 0, 0);
1291 rc
= lpfc_issue_fabric_iocb(phba
, elsiocb
);
1292 if (rc
== IOCB_ERROR
) {
1293 lpfc_els_free_iocb(phba
, elsiocb
);
1300 * lpfc_els_abort_flogi - Abort all outstanding flogi iocbs
1301 * @phba: pointer to lpfc hba data structure.
1303 * This routine aborts all the outstanding Fabric Login (FLOGI) IOCBs
1304 * with a @phba. This routine walks all the outstanding IOCBs on the txcmplq
1305 * list and issues an abort IOCB commond on each outstanding IOCB that
1306 * contains a active Fabric_DID ndlp. Note that this function is to issue
1307 * the abort IOCB command on all the outstanding IOCBs, thus when this
1308 * function returns, it does not guarantee all the IOCBs are actually aborted.
1311 * 0 - Successfully issued abort iocb on all outstanding flogis (Always 0)
1314 lpfc_els_abort_flogi(struct lpfc_hba
*phba
)
1316 struct lpfc_sli_ring
*pring
;
1317 struct lpfc_iocbq
*iocb
, *next_iocb
;
1318 struct lpfc_nodelist
*ndlp
;
1321 /* Abort outstanding I/O on NPort <nlp_DID> */
1322 lpfc_printf_log(phba
, KERN_INFO
, LOG_DISCOVERY
,
1323 "0201 Abort outstanding I/O on NPort x%x\n",
1326 pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
1329 * Check the txcmplq for an iocb that matches the nport the driver is
1332 spin_lock_irq(&phba
->hbalock
);
1333 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txcmplq
, list
) {
1335 if (icmd
->ulpCommand
== CMD_ELS_REQUEST64_CR
) {
1336 ndlp
= (struct lpfc_nodelist
*)(iocb
->context1
);
1337 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
) &&
1338 (ndlp
->nlp_DID
== Fabric_DID
))
1339 lpfc_sli_issue_abort_iotag(phba
, pring
, iocb
);
1342 spin_unlock_irq(&phba
->hbalock
);
1348 * lpfc_initial_flogi - Issue an initial fabric login for a vport
1349 * @vport: pointer to a host virtual N_Port data structure.
1351 * This routine issues an initial Fabric Login (FLOGI) for the @vport
1352 * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from
1353 * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and
1354 * put it into the @vport's ndlp list. If an inactive ndlp found on the list,
1355 * it will just be enabled and made active. The lpfc_issue_els_flogi() routine
1356 * is then invoked with the @vport and the ndlp to perform the FLOGI for the
1360 * 0 - failed to issue initial flogi for @vport
1361 * 1 - successfully issued initial flogi for @vport
1364 lpfc_initial_flogi(struct lpfc_vport
*vport
)
1366 struct lpfc_hba
*phba
= vport
->phba
;
1367 struct lpfc_nodelist
*ndlp
;
1369 vport
->port_state
= LPFC_FLOGI
;
1370 lpfc_set_disctmo(vport
);
1372 /* First look for the Fabric ndlp */
1373 ndlp
= lpfc_findnode_did(vport
, Fabric_DID
);
1375 /* Cannot find existing Fabric ndlp, so allocate a new one */
1376 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
1379 lpfc_nlp_init(vport
, ndlp
, Fabric_DID
);
1380 /* Set the node type */
1381 ndlp
->nlp_type
|= NLP_FABRIC
;
1382 /* Put ndlp onto node list */
1383 lpfc_enqueue_node(vport
, ndlp
);
1384 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
1385 /* re-setup ndlp without removing from node list */
1386 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_UNUSED_NODE
);
1391 if (lpfc_issue_els_flogi(vport
, ndlp
, 0)) {
1392 /* This decrement of reference count to node shall kick off
1393 * the release of the node.
1402 * lpfc_initial_fdisc - Issue an initial fabric discovery for a vport
1403 * @vport: pointer to a host virtual N_Port data structure.
1405 * This routine issues an initial Fabric Discover (FDISC) for the @vport
1406 * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from
1407 * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and
1408 * put it into the @vport's ndlp list. If an inactive ndlp found on the list,
1409 * it will just be enabled and made active. The lpfc_issue_els_fdisc() routine
1410 * is then invoked with the @vport and the ndlp to perform the FDISC for the
1414 * 0 - failed to issue initial fdisc for @vport
1415 * 1 - successfully issued initial fdisc for @vport
1418 lpfc_initial_fdisc(struct lpfc_vport
*vport
)
1420 struct lpfc_hba
*phba
= vport
->phba
;
1421 struct lpfc_nodelist
*ndlp
;
1423 /* First look for the Fabric ndlp */
1424 ndlp
= lpfc_findnode_did(vport
, Fabric_DID
);
1426 /* Cannot find existing Fabric ndlp, so allocate a new one */
1427 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
1430 lpfc_nlp_init(vport
, ndlp
, Fabric_DID
);
1431 /* Put ndlp onto node list */
1432 lpfc_enqueue_node(vport
, ndlp
);
1433 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
1434 /* re-setup ndlp without removing from node list */
1435 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_UNUSED_NODE
);
1440 if (lpfc_issue_els_fdisc(vport
, ndlp
, 0)) {
1441 /* decrement node reference count to trigger the release of
1451 * lpfc_more_plogi - Check and issue remaining plogis for a vport
1452 * @vport: pointer to a host virtual N_Port data structure.
1454 * This routine checks whether there are more remaining Port Logins
1455 * (PLOGI) to be issued for the @vport. If so, it will invoke the routine
1456 * lpfc_els_disc_plogi() to go through the Node Port Recovery (NPR) nodes
1457 * to issue ELS PLOGIs up to the configured discover threads with the
1458 * @vport (@vport->cfg_discovery_threads). The function also decrement
1459 * the @vport's num_disc_node by 1 if it is not already 0.
1462 lpfc_more_plogi(struct lpfc_vport
*vport
)
1464 if (vport
->num_disc_nodes
)
1465 vport
->num_disc_nodes
--;
1467 /* Continue discovery with <num_disc_nodes> PLOGIs to go */
1468 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
1469 "0232 Continue discovery with %d PLOGIs to go "
1470 "Data: x%x x%x x%x\n",
1471 vport
->num_disc_nodes
, vport
->fc_plogi_cnt
,
1472 vport
->fc_flag
, vport
->port_state
);
1473 /* Check to see if there are more PLOGIs to be sent */
1474 if (vport
->fc_flag
& FC_NLP_MORE
)
1475 /* go thru NPR nodes and issue any remaining ELS PLOGIs */
1476 lpfc_els_disc_plogi(vport
);
1482 * lpfc_plogi_confirm_nport - Confirm pologi wwpn matches stored ndlp
1483 * @phba: pointer to lpfc hba data structure.
1484 * @prsp: pointer to response IOCB payload.
1485 * @ndlp: pointer to a node-list data structure.
1487 * This routine checks and indicates whether the WWPN of an N_Port, retrieved
1488 * from a PLOGI, matches the WWPN that is stored in the @ndlp for that N_POrt.
1489 * The following cases are considered N_Port confirmed:
1490 * 1) The N_Port is a Fabric ndlp; 2) The @ndlp is on vport list and matches
1491 * the WWPN of the N_Port logged into; 3) The @ndlp is not on vport list but
1492 * it does not have WWPN assigned either. If the WWPN is confirmed, the
1493 * pointer to the @ndlp will be returned. If the WWPN is not confirmed:
1494 * 1) if there is a node on vport list other than the @ndlp with the same
1495 * WWPN of the N_Port PLOGI logged into, the lpfc_unreg_rpi() will be invoked
1496 * on that node to release the RPI associated with the node; 2) if there is
1497 * no node found on vport list with the same WWPN of the N_Port PLOGI logged
1498 * into, a new node shall be allocated (or activated). In either case, the
1499 * parameters of the @ndlp shall be copied to the new_ndlp, the @ndlp shall
1500 * be released and the new_ndlp shall be put on to the vport node list and
1501 * its pointer returned as the confirmed node.
1503 * Note that before the @ndlp got "released", the keepDID from not-matching
1504 * or inactive "new_ndlp" on the vport node list is assigned to the nlp_DID
1505 * of the @ndlp. This is because the release of @ndlp is actually to put it
1506 * into an inactive state on the vport node list and the vport node list
1507 * management algorithm does not allow two node with a same DID.
1510 * pointer to the PLOGI N_Port @ndlp
1512 static struct lpfc_nodelist
*
1513 lpfc_plogi_confirm_nport(struct lpfc_hba
*phba
, uint32_t *prsp
,
1514 struct lpfc_nodelist
*ndlp
)
1516 struct lpfc_vport
*vport
= ndlp
->vport
;
1517 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
1518 struct lpfc_nodelist
*new_ndlp
;
1519 struct lpfc_rport_data
*rdata
;
1520 struct fc_rport
*rport
;
1521 struct serv_parm
*sp
;
1522 uint8_t name
[sizeof(struct lpfc_name
)];
1523 uint32_t rc
, keepDID
= 0, keep_nlp_flag
= 0;
1524 uint16_t keep_nlp_state
;
1527 unsigned long *active_rrqs_xri_bitmap
= NULL
;
1529 /* Fabric nodes can have the same WWPN so we don't bother searching
1530 * by WWPN. Just return the ndlp that was given to us.
1532 if (ndlp
->nlp_type
& NLP_FABRIC
)
1535 sp
= (struct serv_parm
*) ((uint8_t *) prsp
+ sizeof(uint32_t));
1536 memset(name
, 0, sizeof(struct lpfc_name
));
1538 /* Now we find out if the NPort we are logging into, matches the WWPN
1539 * we have for that ndlp. If not, we have some work to do.
1541 new_ndlp
= lpfc_findnode_wwpn(vport
, &sp
->portName
);
1543 if (new_ndlp
== ndlp
&& NLP_CHK_NODE_ACT(new_ndlp
))
1545 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
1546 active_rrqs_xri_bitmap
= mempool_alloc(phba
->active_rrq_pool
,
1548 if (active_rrqs_xri_bitmap
)
1549 memset(active_rrqs_xri_bitmap
, 0,
1550 phba
->cfg_rrq_xri_bitmap_sz
);
1553 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
1554 "3178 PLOGI confirm: ndlp %p x%x: new_ndlp %p\n",
1555 ndlp
, ndlp
->nlp_DID
, new_ndlp
);
1558 rc
= memcmp(&ndlp
->nlp_portname
, name
,
1559 sizeof(struct lpfc_name
));
1561 if (active_rrqs_xri_bitmap
)
1562 mempool_free(active_rrqs_xri_bitmap
,
1563 phba
->active_rrq_pool
);
1566 new_ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_ATOMIC
);
1568 if (active_rrqs_xri_bitmap
)
1569 mempool_free(active_rrqs_xri_bitmap
,
1570 phba
->active_rrq_pool
);
1573 lpfc_nlp_init(vport
, new_ndlp
, ndlp
->nlp_DID
);
1574 } else if (!NLP_CHK_NODE_ACT(new_ndlp
)) {
1575 rc
= memcmp(&ndlp
->nlp_portname
, name
,
1576 sizeof(struct lpfc_name
));
1578 if (active_rrqs_xri_bitmap
)
1579 mempool_free(active_rrqs_xri_bitmap
,
1580 phba
->active_rrq_pool
);
1583 new_ndlp
= lpfc_enable_node(vport
, new_ndlp
,
1584 NLP_STE_UNUSED_NODE
);
1586 if (active_rrqs_xri_bitmap
)
1587 mempool_free(active_rrqs_xri_bitmap
,
1588 phba
->active_rrq_pool
);
1591 keepDID
= new_ndlp
->nlp_DID
;
1592 if ((phba
->sli_rev
== LPFC_SLI_REV4
) && active_rrqs_xri_bitmap
)
1593 memcpy(active_rrqs_xri_bitmap
,
1594 new_ndlp
->active_rrqs_xri_bitmap
,
1595 phba
->cfg_rrq_xri_bitmap_sz
);
1597 keepDID
= new_ndlp
->nlp_DID
;
1598 if (phba
->sli_rev
== LPFC_SLI_REV4
&&
1599 active_rrqs_xri_bitmap
)
1600 memcpy(active_rrqs_xri_bitmap
,
1601 new_ndlp
->active_rrqs_xri_bitmap
,
1602 phba
->cfg_rrq_xri_bitmap_sz
);
1605 lpfc_unreg_rpi(vport
, new_ndlp
);
1606 new_ndlp
->nlp_DID
= ndlp
->nlp_DID
;
1607 new_ndlp
->nlp_prev_state
= ndlp
->nlp_prev_state
;
1608 if (phba
->sli_rev
== LPFC_SLI_REV4
)
1609 memcpy(new_ndlp
->active_rrqs_xri_bitmap
,
1610 ndlp
->active_rrqs_xri_bitmap
,
1611 phba
->cfg_rrq_xri_bitmap_sz
);
1613 spin_lock_irq(shost
->host_lock
);
1614 keep_nlp_flag
= new_ndlp
->nlp_flag
;
1615 new_ndlp
->nlp_flag
= ndlp
->nlp_flag
;
1616 ndlp
->nlp_flag
= keep_nlp_flag
;
1617 spin_unlock_irq(shost
->host_lock
);
1619 /* Set nlp_states accordingly */
1620 keep_nlp_state
= new_ndlp
->nlp_state
;
1621 lpfc_nlp_set_state(vport
, new_ndlp
, ndlp
->nlp_state
);
1623 /* Move this back to NPR state */
1624 if (memcmp(&ndlp
->nlp_portname
, name
, sizeof(struct lpfc_name
)) == 0) {
1625 /* The new_ndlp is replacing ndlp totally, so we need
1626 * to put ndlp on UNUSED list and try to free it.
1628 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
1629 "3179 PLOGI confirm NEW: %x %x\n",
1630 new_ndlp
->nlp_DID
, keepDID
);
1632 /* Fix up the rport accordingly */
1633 rport
= ndlp
->rport
;
1635 rdata
= rport
->dd_data
;
1636 if (rdata
->pnode
== ndlp
) {
1637 /* break the link before dropping the ref */
1640 rdata
->pnode
= lpfc_nlp_get(new_ndlp
);
1641 new_ndlp
->rport
= rport
;
1643 new_ndlp
->nlp_type
= ndlp
->nlp_type
;
1645 /* We shall actually free the ndlp with both nlp_DID and
1646 * nlp_portname fields equals 0 to avoid any ndlp on the
1647 * nodelist never to be used.
1649 if (ndlp
->nlp_DID
== 0) {
1650 spin_lock_irq(&phba
->ndlp_lock
);
1651 NLP_SET_FREE_REQ(ndlp
);
1652 spin_unlock_irq(&phba
->ndlp_lock
);
1655 /* Two ndlps cannot have the same did on the nodelist */
1656 ndlp
->nlp_DID
= keepDID
;
1657 if (phba
->sli_rev
== LPFC_SLI_REV4
&&
1658 active_rrqs_xri_bitmap
)
1659 memcpy(ndlp
->active_rrqs_xri_bitmap
,
1660 active_rrqs_xri_bitmap
,
1661 phba
->cfg_rrq_xri_bitmap_sz
);
1663 if (!NLP_CHK_NODE_ACT(ndlp
))
1664 lpfc_drop_node(vport
, ndlp
);
1667 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
1668 "3180 PLOGI confirm SWAP: %x %x\n",
1669 new_ndlp
->nlp_DID
, keepDID
);
1671 lpfc_unreg_rpi(vport
, ndlp
);
1673 /* Two ndlps cannot have the same did */
1674 ndlp
->nlp_DID
= keepDID
;
1675 if (phba
->sli_rev
== LPFC_SLI_REV4
&&
1676 active_rrqs_xri_bitmap
)
1677 memcpy(ndlp
->active_rrqs_xri_bitmap
,
1678 active_rrqs_xri_bitmap
,
1679 phba
->cfg_rrq_xri_bitmap_sz
);
1681 /* Since we are switching over to the new_ndlp,
1682 * reset the old ndlp state
1684 if ((ndlp
->nlp_state
== NLP_STE_UNMAPPED_NODE
) ||
1685 (ndlp
->nlp_state
== NLP_STE_MAPPED_NODE
))
1686 keep_nlp_state
= NLP_STE_NPR_NODE
;
1687 lpfc_nlp_set_state(vport
, ndlp
, keep_nlp_state
);
1689 /* Fix up the rport accordingly */
1690 rport
= ndlp
->rport
;
1692 rdata
= rport
->dd_data
;
1693 put_node
= rdata
->pnode
!= NULL
;
1694 put_rport
= ndlp
->rport
!= NULL
;
1695 rdata
->pnode
= NULL
;
1700 put_device(&rport
->dev
);
1703 if (phba
->sli_rev
== LPFC_SLI_REV4
&&
1704 active_rrqs_xri_bitmap
)
1705 mempool_free(active_rrqs_xri_bitmap
,
1706 phba
->active_rrq_pool
);
1711 * lpfc_end_rscn - Check and handle more rscn for a vport
1712 * @vport: pointer to a host virtual N_Port data structure.
1714 * This routine checks whether more Registration State Change
1715 * Notifications (RSCNs) came in while the discovery state machine was in
1716 * the FC_RSCN_MODE. If so, the lpfc_els_handle_rscn() routine will be
1717 * invoked to handle the additional RSCNs for the @vport. Otherwise, the
1718 * FC_RSCN_MODE bit will be cleared with the @vport to mark as the end of
1719 * handling the RSCNs.
1722 lpfc_end_rscn(struct lpfc_vport
*vport
)
1724 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
1726 if (vport
->fc_flag
& FC_RSCN_MODE
) {
1728 * Check to see if more RSCNs came in while we were
1729 * processing this one.
1731 if (vport
->fc_rscn_id_cnt
||
1732 (vport
->fc_flag
& FC_RSCN_DISCOVERY
) != 0)
1733 lpfc_els_handle_rscn(vport
);
1735 spin_lock_irq(shost
->host_lock
);
1736 vport
->fc_flag
&= ~FC_RSCN_MODE
;
1737 spin_unlock_irq(shost
->host_lock
);
1743 * lpfc_cmpl_els_rrq - Completion handled for els RRQs.
1744 * @phba: pointer to lpfc hba data structure.
1745 * @cmdiocb: pointer to lpfc command iocb data structure.
1746 * @rspiocb: pointer to lpfc response iocb data structure.
1748 * This routine will call the clear rrq function to free the rrq and
1749 * clear the xri's bit in the ndlp's xri_bitmap. If the ndlp does not
1750 * exist then the clear_rrq is still called because the rrq needs to
1755 lpfc_cmpl_els_rrq(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
1756 struct lpfc_iocbq
*rspiocb
)
1758 struct lpfc_vport
*vport
= cmdiocb
->vport
;
1760 struct lpfc_nodelist
*ndlp
;
1761 struct lpfc_node_rrq
*rrq
;
1763 /* we pass cmdiocb to state machine which needs rspiocb as well */
1764 rrq
= cmdiocb
->context_un
.rrq
;
1765 cmdiocb
->context_un
.rsp_iocb
= rspiocb
;
1767 irsp
= &rspiocb
->iocb
;
1768 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
1769 "RRQ cmpl: status:x%x/x%x did:x%x",
1770 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
1771 irsp
->un
.elsreq64
.remoteID
);
1773 ndlp
= lpfc_findnode_did(vport
, irsp
->un
.elsreq64
.remoteID
);
1774 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
) || ndlp
!= rrq
->ndlp
) {
1775 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
1776 "2882 RRQ completes to NPort x%x "
1777 "with no ndlp. Data: x%x x%x x%x\n",
1778 irsp
->un
.elsreq64
.remoteID
,
1779 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
1784 /* rrq completes to NPort <nlp_DID> */
1785 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
1786 "2880 RRQ completes to NPort x%x "
1787 "Data: x%x x%x x%x x%x x%x\n",
1788 ndlp
->nlp_DID
, irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
1789 irsp
->ulpTimeout
, rrq
->xritag
, rrq
->rxid
);
1791 if (irsp
->ulpStatus
) {
1792 /* Check for retry */
1793 /* RRQ failed Don't print the vport to vport rjts */
1794 if (irsp
->ulpStatus
!= IOSTAT_LS_RJT
||
1795 (((irsp
->un
.ulpWord
[4]) >> 16 != LSRJT_INVALID_CMD
) &&
1796 ((irsp
->un
.ulpWord
[4]) >> 16 != LSRJT_UNABLE_TPC
)) ||
1797 (phba
)->pport
->cfg_log_verbose
& LOG_ELS
)
1798 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
1799 "2881 RRQ failure DID:%06X Status:x%x/x%x\n",
1800 ndlp
->nlp_DID
, irsp
->ulpStatus
,
1801 irsp
->un
.ulpWord
[4]);
1805 lpfc_clr_rrq_active(phba
, rrq
->xritag
, rrq
);
1806 lpfc_els_free_iocb(phba
, cmdiocb
);
1810 * lpfc_cmpl_els_plogi - Completion callback function for plogi
1811 * @phba: pointer to lpfc hba data structure.
1812 * @cmdiocb: pointer to lpfc command iocb data structure.
1813 * @rspiocb: pointer to lpfc response iocb data structure.
1815 * This routine is the completion callback function for issuing the Port
1816 * Login (PLOGI) command. For PLOGI completion, there must be an active
1817 * ndlp on the vport node list that matches the remote node ID from the
1818 * PLOGI response IOCB. If such ndlp does not exist, the PLOGI is simply
1819 * ignored and command IOCB released. The PLOGI response IOCB status is
1820 * checked for error conditons. If there is error status reported, PLOGI
1821 * retry shall be attempted by invoking the lpfc_els_retry() routine.
1822 * Otherwise, the lpfc_plogi_confirm_nport() routine shall be invoked on
1823 * the ndlp and the NLP_EVT_CMPL_PLOGI state to the Discover State Machine
1824 * (DSM) is set for this PLOGI completion. Finally, it checks whether
1825 * there are additional N_Port nodes with the vport that need to perform
1826 * PLOGI. If so, the lpfc_more_plogi() routine is invoked to issue addition
1830 lpfc_cmpl_els_plogi(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
1831 struct lpfc_iocbq
*rspiocb
)
1833 struct lpfc_vport
*vport
= cmdiocb
->vport
;
1834 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
1836 struct lpfc_nodelist
*ndlp
;
1837 struct lpfc_dmabuf
*prsp
;
1840 /* we pass cmdiocb to state machine which needs rspiocb as well */
1841 cmdiocb
->context_un
.rsp_iocb
= rspiocb
;
1843 irsp
= &rspiocb
->iocb
;
1844 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
1845 "PLOGI cmpl: status:x%x/x%x did:x%x",
1846 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
1847 irsp
->un
.elsreq64
.remoteID
);
1849 ndlp
= lpfc_findnode_did(vport
, irsp
->un
.elsreq64
.remoteID
);
1850 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
)) {
1851 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
1852 "0136 PLOGI completes to NPort x%x "
1853 "with no ndlp. Data: x%x x%x x%x\n",
1854 irsp
->un
.elsreq64
.remoteID
,
1855 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
1860 /* Since ndlp can be freed in the disc state machine, note if this node
1861 * is being used during discovery.
1863 spin_lock_irq(shost
->host_lock
);
1864 disc
= (ndlp
->nlp_flag
& NLP_NPR_2B_DISC
);
1865 ndlp
->nlp_flag
&= ~NLP_NPR_2B_DISC
;
1866 spin_unlock_irq(shost
->host_lock
);
1869 /* PLOGI completes to NPort <nlp_DID> */
1870 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
1871 "0102 PLOGI completes to NPort x%x "
1872 "Data: x%x x%x x%x x%x x%x\n",
1873 ndlp
->nlp_DID
, irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
1874 irsp
->ulpTimeout
, disc
, vport
->num_disc_nodes
);
1875 /* Check to see if link went down during discovery */
1876 if (lpfc_els_chk_latt(vport
)) {
1877 spin_lock_irq(shost
->host_lock
);
1878 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
1879 spin_unlock_irq(shost
->host_lock
);
1883 if (irsp
->ulpStatus
) {
1884 /* Check for retry */
1885 if (lpfc_els_retry(phba
, cmdiocb
, rspiocb
)) {
1886 /* ELS command is being retried */
1888 spin_lock_irq(shost
->host_lock
);
1889 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
1890 spin_unlock_irq(shost
->host_lock
);
1894 /* PLOGI failed Don't print the vport to vport rjts */
1895 if (irsp
->ulpStatus
!= IOSTAT_LS_RJT
||
1896 (((irsp
->un
.ulpWord
[4]) >> 16 != LSRJT_INVALID_CMD
) &&
1897 ((irsp
->un
.ulpWord
[4]) >> 16 != LSRJT_UNABLE_TPC
)) ||
1898 (phba
)->pport
->cfg_log_verbose
& LOG_ELS
)
1899 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
1900 "2753 PLOGI failure DID:%06X Status:x%x/x%x\n",
1901 ndlp
->nlp_DID
, irsp
->ulpStatus
,
1902 irsp
->un
.ulpWord
[4]);
1903 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
1904 if (lpfc_error_lost_link(irsp
))
1905 rc
= NLP_STE_FREED_NODE
;
1907 rc
= lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
,
1908 NLP_EVT_CMPL_PLOGI
);
1910 /* Good status, call state machine */
1911 prsp
= list_entry(((struct lpfc_dmabuf
*)
1912 cmdiocb
->context2
)->list
.next
,
1913 struct lpfc_dmabuf
, list
);
1914 ndlp
= lpfc_plogi_confirm_nport(phba
, prsp
->virt
, ndlp
);
1915 rc
= lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
,
1916 NLP_EVT_CMPL_PLOGI
);
1919 if (disc
&& vport
->num_disc_nodes
) {
1920 /* Check to see if there are more PLOGIs to be sent */
1921 lpfc_more_plogi(vport
);
1923 if (vport
->num_disc_nodes
== 0) {
1924 spin_lock_irq(shost
->host_lock
);
1925 vport
->fc_flag
&= ~FC_NDISC_ACTIVE
;
1926 spin_unlock_irq(shost
->host_lock
);
1928 lpfc_can_disctmo(vport
);
1929 lpfc_end_rscn(vport
);
1934 lpfc_els_free_iocb(phba
, cmdiocb
);
1939 * lpfc_issue_els_plogi - Issue an plogi iocb command for a vport
1940 * @vport: pointer to a host virtual N_Port data structure.
1941 * @did: destination port identifier.
1942 * @retry: number of retries to the command IOCB.
1944 * This routine issues a Port Login (PLOGI) command to a remote N_Port
1945 * (with the @did) for a @vport. Before issuing a PLOGI to a remote N_Port,
1946 * the ndlp with the remote N_Port DID must exist on the @vport's ndlp list.
1947 * This routine constructs the proper feilds of the PLOGI IOCB and invokes
1948 * the lpfc_sli_issue_iocb() routine to send out PLOGI ELS command.
1950 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
1951 * will be incremented by 1 for holding the ndlp and the reference to ndlp
1952 * will be stored into the context1 field of the IOCB for the completion
1953 * callback function to the PLOGI ELS command.
1956 * 0 - Successfully issued a plogi for @vport
1957 * 1 - failed to issue a plogi for @vport
1960 lpfc_issue_els_plogi(struct lpfc_vport
*vport
, uint32_t did
, uint8_t retry
)
1962 struct lpfc_hba
*phba
= vport
->phba
;
1963 struct serv_parm
*sp
;
1964 struct lpfc_nodelist
*ndlp
;
1965 struct lpfc_iocbq
*elsiocb
;
1970 ndlp
= lpfc_findnode_did(vport
, did
);
1971 if (ndlp
&& !NLP_CHK_NODE_ACT(ndlp
))
1974 /* If ndlp is not NULL, we will bump the reference count on it */
1975 cmdsize
= (sizeof(uint32_t) + sizeof(struct serv_parm
));
1976 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
, did
,
1981 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
1983 /* For PLOGI request, remainder of payload is service parameters */
1984 *((uint32_t *) (pcmd
)) = ELS_CMD_PLOGI
;
1985 pcmd
+= sizeof(uint32_t);
1986 memcpy(pcmd
, &vport
->fc_sparam
, sizeof(struct serv_parm
));
1987 sp
= (struct serv_parm
*) pcmd
;
1990 * If we are a N-port connected to a Fabric, fix-up paramm's so logins
1991 * to device on remote loops work.
1993 if ((vport
->fc_flag
& FC_FABRIC
) && !(vport
->fc_flag
& FC_PUBLIC_LOOP
))
1994 sp
->cmn
.altBbCredit
= 1;
1996 if (sp
->cmn
.fcphLow
< FC_PH_4_3
)
1997 sp
->cmn
.fcphLow
= FC_PH_4_3
;
1999 if (sp
->cmn
.fcphHigh
< FC_PH3
)
2000 sp
->cmn
.fcphHigh
= FC_PH3
;
2002 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2003 "Issue PLOGI: did:x%x",
2006 phba
->fc_stat
.elsXmitPLOGI
++;
2007 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_plogi
;
2008 ret
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
2010 if (ret
== IOCB_ERROR
) {
2011 lpfc_els_free_iocb(phba
, elsiocb
);
2018 * lpfc_cmpl_els_prli - Completion callback function for prli
2019 * @phba: pointer to lpfc hba data structure.
2020 * @cmdiocb: pointer to lpfc command iocb data structure.
2021 * @rspiocb: pointer to lpfc response iocb data structure.
2023 * This routine is the completion callback function for a Process Login
2024 * (PRLI) ELS command. The PRLI response IOCB status is checked for error
2025 * status. If there is error status reported, PRLI retry shall be attempted
2026 * by invoking the lpfc_els_retry() routine. Otherwise, the state
2027 * NLP_EVT_CMPL_PRLI is sent to the Discover State Machine (DSM) for this
2028 * ndlp to mark the PRLI completion.
2031 lpfc_cmpl_els_prli(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
2032 struct lpfc_iocbq
*rspiocb
)
2034 struct lpfc_vport
*vport
= cmdiocb
->vport
;
2035 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2037 struct lpfc_nodelist
*ndlp
;
2039 /* we pass cmdiocb to state machine which needs rspiocb as well */
2040 cmdiocb
->context_un
.rsp_iocb
= rspiocb
;
2042 irsp
= &(rspiocb
->iocb
);
2043 ndlp
= (struct lpfc_nodelist
*) cmdiocb
->context1
;
2044 spin_lock_irq(shost
->host_lock
);
2045 ndlp
->nlp_flag
&= ~NLP_PRLI_SND
;
2046 spin_unlock_irq(shost
->host_lock
);
2048 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2049 "PRLI cmpl: status:x%x/x%x did:x%x",
2050 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
2052 /* PRLI completes to NPort <nlp_DID> */
2053 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
2054 "0103 PRLI completes to NPort x%x "
2055 "Data: x%x x%x x%x x%x\n",
2056 ndlp
->nlp_DID
, irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
2057 irsp
->ulpTimeout
, vport
->num_disc_nodes
);
2059 vport
->fc_prli_sent
--;
2060 /* Check to see if link went down during discovery */
2061 if (lpfc_els_chk_latt(vport
))
2064 if (irsp
->ulpStatus
) {
2065 /* Check for retry */
2066 if (lpfc_els_retry(phba
, cmdiocb
, rspiocb
)) {
2067 /* ELS command is being retried */
2071 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
2072 "2754 PRLI failure DID:%06X Status:x%x/x%x\n",
2073 ndlp
->nlp_DID
, irsp
->ulpStatus
,
2074 irsp
->un
.ulpWord
[4]);
2075 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
2076 if (lpfc_error_lost_link(irsp
))
2079 lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
,
2082 /* Good status, call state machine */
2083 lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
,
2086 lpfc_els_free_iocb(phba
, cmdiocb
);
2091 * lpfc_issue_els_prli - Issue a prli iocb command for a vport
2092 * @vport: pointer to a host virtual N_Port data structure.
2093 * @ndlp: pointer to a node-list data structure.
2094 * @retry: number of retries to the command IOCB.
2096 * This routine issues a Process Login (PRLI) ELS command for the
2097 * @vport. The PRLI service parameters are set up in the payload of the
2098 * PRLI Request command and the pointer to lpfc_cmpl_els_prli() routine
2099 * is put to the IOCB completion callback func field before invoking the
2100 * routine lpfc_sli_issue_iocb() to send out PRLI command.
2102 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2103 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2104 * will be stored into the context1 field of the IOCB for the completion
2105 * callback function to the PRLI ELS command.
2108 * 0 - successfully issued prli iocb command for @vport
2109 * 1 - failed to issue prli iocb command for @vport
2112 lpfc_issue_els_prli(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
2115 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2116 struct lpfc_hba
*phba
= vport
->phba
;
2118 struct lpfc_iocbq
*elsiocb
;
2122 cmdsize
= (sizeof(uint32_t) + sizeof(PRLI
));
2123 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
,
2124 ndlp
->nlp_DID
, ELS_CMD_PRLI
);
2128 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
2130 /* For PRLI request, remainder of payload is service parameters */
2131 memset(pcmd
, 0, (sizeof(PRLI
) + sizeof(uint32_t)));
2132 *((uint32_t *) (pcmd
)) = ELS_CMD_PRLI
;
2133 pcmd
+= sizeof(uint32_t);
2135 /* For PRLI, remainder of payload is PRLI parameter page */
2136 npr
= (PRLI
*) pcmd
;
2138 * If our firmware version is 3.20 or later,
2139 * set the following bits for FC-TAPE support.
2141 if (phba
->vpd
.rev
.feaLevelHigh
>= 0x02) {
2142 npr
->ConfmComplAllowed
= 1;
2144 npr
->TaskRetryIdReq
= 1;
2146 npr
->estabImagePair
= 1;
2147 npr
->readXferRdyDis
= 1;
2148 if (vport
->cfg_first_burst_size
)
2149 npr
->writeXferRdyDis
= 1;
2151 /* For FCP support */
2152 npr
->prliType
= PRLI_FCP_TYPE
;
2153 npr
->initiatorFunc
= 1;
2155 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2156 "Issue PRLI: did:x%x",
2157 ndlp
->nlp_DID
, 0, 0);
2159 phba
->fc_stat
.elsXmitPRLI
++;
2160 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_prli
;
2161 spin_lock_irq(shost
->host_lock
);
2162 ndlp
->nlp_flag
|= NLP_PRLI_SND
;
2163 spin_unlock_irq(shost
->host_lock
);
2164 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) ==
2166 spin_lock_irq(shost
->host_lock
);
2167 ndlp
->nlp_flag
&= ~NLP_PRLI_SND
;
2168 spin_unlock_irq(shost
->host_lock
);
2169 lpfc_els_free_iocb(phba
, elsiocb
);
2172 vport
->fc_prli_sent
++;
2177 * lpfc_rscn_disc - Perform rscn discovery for a vport
2178 * @vport: pointer to a host virtual N_Port data structure.
2180 * This routine performs Registration State Change Notification (RSCN)
2181 * discovery for a @vport. If the @vport's node port recovery count is not
2182 * zero, it will invoke the lpfc_els_disc_plogi() to perform PLOGI for all
2183 * the nodes that need recovery. If none of the PLOGI were needed through
2184 * the lpfc_els_disc_plogi() routine, the lpfc_end_rscn() routine shall be
2185 * invoked to check and handle possible more RSCN came in during the period
2186 * of processing the current ones.
2189 lpfc_rscn_disc(struct lpfc_vport
*vport
)
2191 lpfc_can_disctmo(vport
);
2193 /* RSCN discovery */
2194 /* go thru NPR nodes and issue ELS PLOGIs */
2195 if (vport
->fc_npr_cnt
)
2196 if (lpfc_els_disc_plogi(vport
))
2199 lpfc_end_rscn(vport
);
2203 * lpfc_adisc_done - Complete the adisc phase of discovery
2204 * @vport: pointer to lpfc_vport hba data structure that finished all ADISCs.
2206 * This function is called when the final ADISC is completed during discovery.
2207 * This function handles clearing link attention or issuing reg_vpi depending
2208 * on whether npiv is enabled. This function also kicks off the PLOGI phase of
2210 * This function is called with no locks held.
2213 lpfc_adisc_done(struct lpfc_vport
*vport
)
2215 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2216 struct lpfc_hba
*phba
= vport
->phba
;
2219 * For NPIV, cmpl_reg_vpi will set port_state to READY,
2220 * and continue discovery.
2222 if ((phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
2223 !(vport
->fc_flag
& FC_RSCN_MODE
) &&
2224 (phba
->sli_rev
< LPFC_SLI_REV4
)) {
2225 /* The ADISCs are complete. Doesn't matter if they
2226 * succeeded or failed because the ADISC completion
2227 * routine guarantees to call the state machine and
2228 * the RPI is either unregistered (failed ADISC response)
2229 * or the RPI is still valid and the node is marked
2230 * mapped for a target. The exchanges should be in the
2231 * correct state. This code is specific to SLI3.
2233 lpfc_issue_clear_la(phba
, vport
);
2234 lpfc_issue_reg_vpi(phba
, vport
);
2238 * For SLI2, we need to set port_state to READY
2239 * and continue discovery.
2241 if (vport
->port_state
< LPFC_VPORT_READY
) {
2242 /* If we get here, there is nothing to ADISC */
2243 lpfc_issue_clear_la(phba
, vport
);
2244 if (!(vport
->fc_flag
& FC_ABORT_DISCOVERY
)) {
2245 vport
->num_disc_nodes
= 0;
2246 /* go thru NPR list, issue ELS PLOGIs */
2247 if (vport
->fc_npr_cnt
)
2248 lpfc_els_disc_plogi(vport
);
2249 if (!vport
->num_disc_nodes
) {
2250 spin_lock_irq(shost
->host_lock
);
2251 vport
->fc_flag
&= ~FC_NDISC_ACTIVE
;
2252 spin_unlock_irq(shost
->host_lock
);
2253 lpfc_can_disctmo(vport
);
2254 lpfc_end_rscn(vport
);
2257 vport
->port_state
= LPFC_VPORT_READY
;
2259 lpfc_rscn_disc(vport
);
2263 * lpfc_more_adisc - Issue more adisc as needed
2264 * @vport: pointer to a host virtual N_Port data structure.
2266 * This routine determines whether there are more ndlps on a @vport
2267 * node list need to have Address Discover (ADISC) issued. If so, it will
2268 * invoke the lpfc_els_disc_adisc() routine to issue ADISC on the @vport's
2269 * remaining nodes which need to have ADISC sent.
2272 lpfc_more_adisc(struct lpfc_vport
*vport
)
2274 if (vport
->num_disc_nodes
)
2275 vport
->num_disc_nodes
--;
2276 /* Continue discovery with <num_disc_nodes> ADISCs to go */
2277 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
2278 "0210 Continue discovery with %d ADISCs to go "
2279 "Data: x%x x%x x%x\n",
2280 vport
->num_disc_nodes
, vport
->fc_adisc_cnt
,
2281 vport
->fc_flag
, vport
->port_state
);
2282 /* Check to see if there are more ADISCs to be sent */
2283 if (vport
->fc_flag
& FC_NLP_MORE
) {
2284 lpfc_set_disctmo(vport
);
2285 /* go thru NPR nodes and issue any remaining ELS ADISCs */
2286 lpfc_els_disc_adisc(vport
);
2288 if (!vport
->num_disc_nodes
)
2289 lpfc_adisc_done(vport
);
2294 * lpfc_cmpl_els_adisc - Completion callback function for adisc
2295 * @phba: pointer to lpfc hba data structure.
2296 * @cmdiocb: pointer to lpfc command iocb data structure.
2297 * @rspiocb: pointer to lpfc response iocb data structure.
2299 * This routine is the completion function for issuing the Address Discover
2300 * (ADISC) command. It first checks to see whether link went down during
2301 * the discovery process. If so, the node will be marked as node port
2302 * recovery for issuing discover IOCB by the link attention handler and
2303 * exit. Otherwise, the response status is checked. If error was reported
2304 * in the response status, the ADISC command shall be retried by invoking
2305 * the lpfc_els_retry() routine. Otherwise, if no error was reported in
2306 * the response status, the state machine is invoked to set transition
2307 * with respect to NLP_EVT_CMPL_ADISC event.
2310 lpfc_cmpl_els_adisc(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
2311 struct lpfc_iocbq
*rspiocb
)
2313 struct lpfc_vport
*vport
= cmdiocb
->vport
;
2314 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2316 struct lpfc_nodelist
*ndlp
;
2319 /* we pass cmdiocb to state machine which needs rspiocb as well */
2320 cmdiocb
->context_un
.rsp_iocb
= rspiocb
;
2322 irsp
= &(rspiocb
->iocb
);
2323 ndlp
= (struct lpfc_nodelist
*) cmdiocb
->context1
;
2325 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2326 "ADISC cmpl: status:x%x/x%x did:x%x",
2327 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
2330 /* Since ndlp can be freed in the disc state machine, note if this node
2331 * is being used during discovery.
2333 spin_lock_irq(shost
->host_lock
);
2334 disc
= (ndlp
->nlp_flag
& NLP_NPR_2B_DISC
);
2335 ndlp
->nlp_flag
&= ~(NLP_ADISC_SND
| NLP_NPR_2B_DISC
);
2336 spin_unlock_irq(shost
->host_lock
);
2337 /* ADISC completes to NPort <nlp_DID> */
2338 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
2339 "0104 ADISC completes to NPort x%x "
2340 "Data: x%x x%x x%x x%x x%x\n",
2341 ndlp
->nlp_DID
, irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
2342 irsp
->ulpTimeout
, disc
, vport
->num_disc_nodes
);
2343 /* Check to see if link went down during discovery */
2344 if (lpfc_els_chk_latt(vport
)) {
2345 spin_lock_irq(shost
->host_lock
);
2346 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
2347 spin_unlock_irq(shost
->host_lock
);
2351 if (irsp
->ulpStatus
) {
2352 /* Check for retry */
2353 if (lpfc_els_retry(phba
, cmdiocb
, rspiocb
)) {
2354 /* ELS command is being retried */
2356 spin_lock_irq(shost
->host_lock
);
2357 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
2358 spin_unlock_irq(shost
->host_lock
);
2359 lpfc_set_disctmo(vport
);
2364 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
2365 "2755 ADISC failure DID:%06X Status:x%x/x%x\n",
2366 ndlp
->nlp_DID
, irsp
->ulpStatus
,
2367 irsp
->un
.ulpWord
[4]);
2368 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
2369 if (!lpfc_error_lost_link(irsp
))
2370 lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
,
2371 NLP_EVT_CMPL_ADISC
);
2373 /* Good status, call state machine */
2374 lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
,
2375 NLP_EVT_CMPL_ADISC
);
2377 /* Check to see if there are more ADISCs to be sent */
2378 if (disc
&& vport
->num_disc_nodes
)
2379 lpfc_more_adisc(vport
);
2381 lpfc_els_free_iocb(phba
, cmdiocb
);
2386 * lpfc_issue_els_adisc - Issue an address discover iocb to an node on a vport
2387 * @vport: pointer to a virtual N_Port data structure.
2388 * @ndlp: pointer to a node-list data structure.
2389 * @retry: number of retries to the command IOCB.
2391 * This routine issues an Address Discover (ADISC) for an @ndlp on a
2392 * @vport. It prepares the payload of the ADISC ELS command, updates the
2393 * and states of the ndlp, and invokes the lpfc_sli_issue_iocb() routine
2394 * to issue the ADISC ELS command.
2396 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2397 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2398 * will be stored into the context1 field of the IOCB for the completion
2399 * callback function to the ADISC ELS command.
2402 * 0 - successfully issued adisc
2403 * 1 - failed to issue adisc
2406 lpfc_issue_els_adisc(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
2409 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2410 struct lpfc_hba
*phba
= vport
->phba
;
2412 struct lpfc_iocbq
*elsiocb
;
2416 cmdsize
= (sizeof(uint32_t) + sizeof(ADISC
));
2417 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
,
2418 ndlp
->nlp_DID
, ELS_CMD_ADISC
);
2422 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
2424 /* For ADISC request, remainder of payload is service parameters */
2425 *((uint32_t *) (pcmd
)) = ELS_CMD_ADISC
;
2426 pcmd
+= sizeof(uint32_t);
2428 /* Fill in ADISC payload */
2429 ap
= (ADISC
*) pcmd
;
2430 ap
->hardAL_PA
= phba
->fc_pref_ALPA
;
2431 memcpy(&ap
->portName
, &vport
->fc_portname
, sizeof(struct lpfc_name
));
2432 memcpy(&ap
->nodeName
, &vport
->fc_nodename
, sizeof(struct lpfc_name
));
2433 ap
->DID
= be32_to_cpu(vport
->fc_myDID
);
2435 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2436 "Issue ADISC: did:x%x",
2437 ndlp
->nlp_DID
, 0, 0);
2439 phba
->fc_stat
.elsXmitADISC
++;
2440 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_adisc
;
2441 spin_lock_irq(shost
->host_lock
);
2442 ndlp
->nlp_flag
|= NLP_ADISC_SND
;
2443 spin_unlock_irq(shost
->host_lock
);
2444 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) ==
2446 spin_lock_irq(shost
->host_lock
);
2447 ndlp
->nlp_flag
&= ~NLP_ADISC_SND
;
2448 spin_unlock_irq(shost
->host_lock
);
2449 lpfc_els_free_iocb(phba
, elsiocb
);
2456 * lpfc_cmpl_els_logo - Completion callback function for logo
2457 * @phba: pointer to lpfc hba data structure.
2458 * @cmdiocb: pointer to lpfc command iocb data structure.
2459 * @rspiocb: pointer to lpfc response iocb data structure.
2461 * This routine is the completion function for issuing the ELS Logout (LOGO)
2462 * command. If no error status was reported from the LOGO response, the
2463 * state machine of the associated ndlp shall be invoked for transition with
2464 * respect to NLP_EVT_CMPL_LOGO event. Otherwise, if error status was reported,
2465 * the lpfc_els_retry() routine will be invoked to retry the LOGO command.
2468 lpfc_cmpl_els_logo(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
2469 struct lpfc_iocbq
*rspiocb
)
2471 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) cmdiocb
->context1
;
2472 struct lpfc_vport
*vport
= ndlp
->vport
;
2473 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2475 struct lpfcMboxq
*mbox
;
2476 unsigned long flags
;
2477 uint32_t skip_recovery
= 0;
2479 /* we pass cmdiocb to state machine which needs rspiocb as well */
2480 cmdiocb
->context_un
.rsp_iocb
= rspiocb
;
2482 irsp
= &(rspiocb
->iocb
);
2483 spin_lock_irq(shost
->host_lock
);
2484 ndlp
->nlp_flag
&= ~NLP_LOGO_SND
;
2485 spin_unlock_irq(shost
->host_lock
);
2487 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2488 "LOGO cmpl: status:x%x/x%x did:x%x",
2489 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
2492 /* LOGO completes to NPort <nlp_DID> */
2493 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
2494 "0105 LOGO completes to NPort x%x "
2495 "Data: x%x x%x x%x x%x\n",
2496 ndlp
->nlp_DID
, irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
2497 irsp
->ulpTimeout
, vport
->num_disc_nodes
);
2499 if (lpfc_els_chk_latt(vport
)) {
2504 /* Check to see if link went down during discovery */
2505 if (ndlp
->nlp_flag
& NLP_TARGET_REMOVE
) {
2506 /* NLP_EVT_DEVICE_RM should unregister the RPI
2507 * which should abort all outstanding IOs.
2509 lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
,
2515 if (irsp
->ulpStatus
) {
2516 /* Check for retry */
2517 if (lpfc_els_retry(phba
, cmdiocb
, rspiocb
)) {
2518 /* ELS command is being retried */
2523 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
2524 "2756 LOGO failure DID:%06X Status:x%x/x%x\n",
2525 ndlp
->nlp_DID
, irsp
->ulpStatus
,
2526 irsp
->un
.ulpWord
[4]);
2527 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
2528 if (lpfc_error_lost_link(irsp
)) {
2534 /* Call state machine. This will unregister the rpi if needed. */
2535 lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
, NLP_EVT_CMPL_LOGO
);
2538 lpfc_els_free_iocb(phba
, cmdiocb
);
2539 /* If we are in pt2pt mode, we could rcv new S_ID on PLOGI */
2540 if ((vport
->fc_flag
& FC_PT2PT
) &&
2541 !(vport
->fc_flag
& FC_PT2PT_PLOGI
)) {
2542 phba
->pport
->fc_myDID
= 0;
2543 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
2545 lpfc_config_link(phba
, mbox
);
2546 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
2547 mbox
->vport
= vport
;
2548 if (lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
) ==
2550 mempool_free(mbox
, phba
->mbox_mem_pool
);
2557 * If the node is a target, the handling attempts to recover the port.
2558 * For any other port type, the rpi is unregistered as an implicit
2561 if ((ndlp
->nlp_type
& NLP_FCP_TARGET
) && (skip_recovery
== 0)) {
2562 lpfc_cancel_retry_delay_tmo(vport
, ndlp
);
2563 spin_lock_irqsave(shost
->host_lock
, flags
);
2564 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
2565 spin_unlock_irqrestore(shost
->host_lock
, flags
);
2567 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
2568 "3187 LOGO completes to NPort x%x: Start "
2569 "Recovery Data: x%x x%x x%x x%x\n",
2570 ndlp
->nlp_DID
, irsp
->ulpStatus
,
2571 irsp
->un
.ulpWord
[4], irsp
->ulpTimeout
,
2572 vport
->num_disc_nodes
);
2573 lpfc_disc_start(vport
);
2579 * lpfc_issue_els_logo - Issue a logo to an node on a vport
2580 * @vport: pointer to a virtual N_Port data structure.
2581 * @ndlp: pointer to a node-list data structure.
2582 * @retry: number of retries to the command IOCB.
2584 * This routine constructs and issues an ELS Logout (LOGO) iocb command
2585 * to a remote node, referred by an @ndlp on a @vport. It constructs the
2586 * payload of the IOCB, properly sets up the @ndlp state, and invokes the
2587 * lpfc_sli_issue_iocb() routine to send out the LOGO ELS command.
2589 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2590 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2591 * will be stored into the context1 field of the IOCB for the completion
2592 * callback function to the LOGO ELS command.
2595 * 0 - successfully issued logo
2596 * 1 - failed to issue logo
2599 lpfc_issue_els_logo(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
2602 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2603 struct lpfc_hba
*phba
= vport
->phba
;
2604 struct lpfc_iocbq
*elsiocb
;
2609 spin_lock_irq(shost
->host_lock
);
2610 if (ndlp
->nlp_flag
& NLP_LOGO_SND
) {
2611 spin_unlock_irq(shost
->host_lock
);
2614 spin_unlock_irq(shost
->host_lock
);
2616 cmdsize
= (2 * sizeof(uint32_t)) + sizeof(struct lpfc_name
);
2617 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
,
2618 ndlp
->nlp_DID
, ELS_CMD_LOGO
);
2622 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
2623 *((uint32_t *) (pcmd
)) = ELS_CMD_LOGO
;
2624 pcmd
+= sizeof(uint32_t);
2626 /* Fill in LOGO payload */
2627 *((uint32_t *) (pcmd
)) = be32_to_cpu(vport
->fc_myDID
);
2628 pcmd
+= sizeof(uint32_t);
2629 memcpy(pcmd
, &vport
->fc_portname
, sizeof(struct lpfc_name
));
2631 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2632 "Issue LOGO: did:x%x",
2633 ndlp
->nlp_DID
, 0, 0);
2636 * If we are issuing a LOGO, we may try to recover the remote NPort
2637 * by issuing a PLOGI later. Even though we issue ELS cmds by the
2638 * VPI, if we have a valid RPI, and that RPI gets unreg'ed while
2639 * that ELS command is in-flight, the HBA returns a IOERR_INVALID_RPI
2640 * for that ELS cmd. To avoid this situation, lets get rid of the
2641 * RPI right now, before any ELS cmds are sent.
2643 spin_lock_irq(shost
->host_lock
);
2644 ndlp
->nlp_flag
|= NLP_ISSUE_LOGO
;
2645 spin_unlock_irq(shost
->host_lock
);
2646 if (lpfc_unreg_rpi(vport
, ndlp
)) {
2647 lpfc_els_free_iocb(phba
, elsiocb
);
2651 phba
->fc_stat
.elsXmitLOGO
++;
2652 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_logo
;
2653 spin_lock_irq(shost
->host_lock
);
2654 ndlp
->nlp_flag
|= NLP_LOGO_SND
;
2655 ndlp
->nlp_flag
&= ~NLP_ISSUE_LOGO
;
2656 spin_unlock_irq(shost
->host_lock
);
2657 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
2659 if (rc
== IOCB_ERROR
) {
2660 spin_lock_irq(shost
->host_lock
);
2661 ndlp
->nlp_flag
&= ~NLP_LOGO_SND
;
2662 spin_unlock_irq(shost
->host_lock
);
2663 lpfc_els_free_iocb(phba
, elsiocb
);
2670 * lpfc_cmpl_els_cmd - Completion callback function for generic els command
2671 * @phba: pointer to lpfc hba data structure.
2672 * @cmdiocb: pointer to lpfc command iocb data structure.
2673 * @rspiocb: pointer to lpfc response iocb data structure.
2675 * This routine is a generic completion callback function for ELS commands.
2676 * Specifically, it is the callback function which does not need to perform
2677 * any command specific operations. It is currently used by the ELS command
2678 * issuing routines for the ELS State Change Request (SCR),
2679 * lpfc_issue_els_scr(), and the ELS Fibre Channel Address Resolution
2680 * Protocol Response (FARPR) routine, lpfc_issue_els_farpr(). Other than
2681 * certain debug loggings, this callback function simply invokes the
2682 * lpfc_els_chk_latt() routine to check whether link went down during the
2683 * discovery process.
2686 lpfc_cmpl_els_cmd(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
2687 struct lpfc_iocbq
*rspiocb
)
2689 struct lpfc_vport
*vport
= cmdiocb
->vport
;
2692 irsp
= &rspiocb
->iocb
;
2694 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2695 "ELS cmd cmpl: status:x%x/x%x did:x%x",
2696 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
2697 irsp
->un
.elsreq64
.remoteID
);
2698 /* ELS cmd tag <ulpIoTag> completes */
2699 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
2700 "0106 ELS cmd tag x%x completes Data: x%x x%x x%x\n",
2701 irsp
->ulpIoTag
, irsp
->ulpStatus
,
2702 irsp
->un
.ulpWord
[4], irsp
->ulpTimeout
);
2703 /* Check to see if link went down during discovery */
2704 lpfc_els_chk_latt(vport
);
2705 lpfc_els_free_iocb(phba
, cmdiocb
);
2710 * lpfc_issue_els_scr - Issue a scr to an node on a vport
2711 * @vport: pointer to a host virtual N_Port data structure.
2712 * @nportid: N_Port identifier to the remote node.
2713 * @retry: number of retries to the command IOCB.
2715 * This routine issues a State Change Request (SCR) to a fabric node
2716 * on a @vport. The remote node @nportid is passed into the function. It
2717 * first search the @vport node list to find the matching ndlp. If no such
2718 * ndlp is found, a new ndlp shall be created for this (SCR) purpose. An
2719 * IOCB is allocated, payload prepared, and the lpfc_sli_issue_iocb()
2720 * routine is invoked to send the SCR IOCB.
2722 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2723 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2724 * will be stored into the context1 field of the IOCB for the completion
2725 * callback function to the SCR ELS command.
2728 * 0 - Successfully issued scr command
2729 * 1 - Failed to issue scr command
2732 lpfc_issue_els_scr(struct lpfc_vport
*vport
, uint32_t nportid
, uint8_t retry
)
2734 struct lpfc_hba
*phba
= vport
->phba
;
2735 struct lpfc_iocbq
*elsiocb
;
2738 struct lpfc_nodelist
*ndlp
;
2740 cmdsize
= (sizeof(uint32_t) + sizeof(SCR
));
2742 ndlp
= lpfc_findnode_did(vport
, nportid
);
2744 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
2747 lpfc_nlp_init(vport
, ndlp
, nportid
);
2748 lpfc_enqueue_node(vport
, ndlp
);
2749 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
2750 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_UNUSED_NODE
);
2755 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
,
2756 ndlp
->nlp_DID
, ELS_CMD_SCR
);
2759 /* This will trigger the release of the node just
2766 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
2768 *((uint32_t *) (pcmd
)) = ELS_CMD_SCR
;
2769 pcmd
+= sizeof(uint32_t);
2771 /* For SCR, remainder of payload is SCR parameter page */
2772 memset(pcmd
, 0, sizeof(SCR
));
2773 ((SCR
*) pcmd
)->Function
= SCR_FUNC_FULL
;
2775 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2776 "Issue SCR: did:x%x",
2777 ndlp
->nlp_DID
, 0, 0);
2779 phba
->fc_stat
.elsXmitSCR
++;
2780 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_cmd
;
2781 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) ==
2783 /* The additional lpfc_nlp_put will cause the following
2784 * lpfc_els_free_iocb routine to trigger the rlease of
2788 lpfc_els_free_iocb(phba
, elsiocb
);
2791 /* This will cause the callback-function lpfc_cmpl_els_cmd to
2792 * trigger the release of node.
2800 * lpfc_issue_els_farpr - Issue a farp to an node on a vport
2801 * @vport: pointer to a host virtual N_Port data structure.
2802 * @nportid: N_Port identifier to the remote node.
2803 * @retry: number of retries to the command IOCB.
2805 * This routine issues a Fibre Channel Address Resolution Response
2806 * (FARPR) to a node on a vport. The remote node N_Port identifier (@nportid)
2807 * is passed into the function. It first search the @vport node list to find
2808 * the matching ndlp. If no such ndlp is found, a new ndlp shall be created
2809 * for this (FARPR) purpose. An IOCB is allocated, payload prepared, and the
2810 * lpfc_sli_issue_iocb() routine is invoked to send the FARPR ELS command.
2812 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2813 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2814 * will be stored into the context1 field of the IOCB for the completion
2815 * callback function to the PARPR ELS command.
2818 * 0 - Successfully issued farpr command
2819 * 1 - Failed to issue farpr command
2822 lpfc_issue_els_farpr(struct lpfc_vport
*vport
, uint32_t nportid
, uint8_t retry
)
2824 struct lpfc_hba
*phba
= vport
->phba
;
2825 struct lpfc_iocbq
*elsiocb
;
2830 struct lpfc_nodelist
*ondlp
;
2831 struct lpfc_nodelist
*ndlp
;
2833 cmdsize
= (sizeof(uint32_t) + sizeof(FARP
));
2835 ndlp
= lpfc_findnode_did(vport
, nportid
);
2837 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
2840 lpfc_nlp_init(vport
, ndlp
, nportid
);
2841 lpfc_enqueue_node(vport
, ndlp
);
2842 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
2843 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_UNUSED_NODE
);
2848 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
,
2849 ndlp
->nlp_DID
, ELS_CMD_RNID
);
2851 /* This will trigger the release of the node just
2858 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
2860 *((uint32_t *) (pcmd
)) = ELS_CMD_FARPR
;
2861 pcmd
+= sizeof(uint32_t);
2863 /* Fill in FARPR payload */
2864 fp
= (FARP
*) (pcmd
);
2865 memset(fp
, 0, sizeof(FARP
));
2866 lp
= (uint32_t *) pcmd
;
2867 *lp
++ = be32_to_cpu(nportid
);
2868 *lp
++ = be32_to_cpu(vport
->fc_myDID
);
2870 fp
->Mflags
= (FARP_MATCH_PORT
| FARP_MATCH_NODE
);
2872 memcpy(&fp
->RportName
, &vport
->fc_portname
, sizeof(struct lpfc_name
));
2873 memcpy(&fp
->RnodeName
, &vport
->fc_nodename
, sizeof(struct lpfc_name
));
2874 ondlp
= lpfc_findnode_did(vport
, nportid
);
2875 if (ondlp
&& NLP_CHK_NODE_ACT(ondlp
)) {
2876 memcpy(&fp
->OportName
, &ondlp
->nlp_portname
,
2877 sizeof(struct lpfc_name
));
2878 memcpy(&fp
->OnodeName
, &ondlp
->nlp_nodename
,
2879 sizeof(struct lpfc_name
));
2882 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2883 "Issue FARPR: did:x%x",
2884 ndlp
->nlp_DID
, 0, 0);
2886 phba
->fc_stat
.elsXmitFARPR
++;
2887 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_cmd
;
2888 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) ==
2890 /* The additional lpfc_nlp_put will cause the following
2891 * lpfc_els_free_iocb routine to trigger the release of
2895 lpfc_els_free_iocb(phba
, elsiocb
);
2898 /* This will cause the callback-function lpfc_cmpl_els_cmd to
2899 * trigger the release of the node.
2906 * lpfc_cancel_retry_delay_tmo - Cancel the timer with delayed iocb-cmd retry
2907 * @vport: pointer to a host virtual N_Port data structure.
2908 * @nlp: pointer to a node-list data structure.
2910 * This routine cancels the timer with a delayed IOCB-command retry for
2911 * a @vport's @ndlp. It stops the timer for the delayed function retrial and
2912 * removes the ELS retry event if it presents. In addition, if the
2913 * NLP_NPR_2B_DISC bit is set in the @nlp's nlp_flag bitmap, ADISC IOCB
2914 * commands are sent for the @vport's nodes that require issuing discovery
2918 lpfc_cancel_retry_delay_tmo(struct lpfc_vport
*vport
, struct lpfc_nodelist
*nlp
)
2920 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2921 struct lpfc_work_evt
*evtp
;
2923 if (!(nlp
->nlp_flag
& NLP_DELAY_TMO
))
2925 spin_lock_irq(shost
->host_lock
);
2926 nlp
->nlp_flag
&= ~NLP_DELAY_TMO
;
2927 spin_unlock_irq(shost
->host_lock
);
2928 del_timer_sync(&nlp
->nlp_delayfunc
);
2929 nlp
->nlp_last_elscmd
= 0;
2930 if (!list_empty(&nlp
->els_retry_evt
.evt_listp
)) {
2931 list_del_init(&nlp
->els_retry_evt
.evt_listp
);
2932 /* Decrement nlp reference count held for the delayed retry */
2933 evtp
= &nlp
->els_retry_evt
;
2934 lpfc_nlp_put((struct lpfc_nodelist
*)evtp
->evt_arg1
);
2936 if (nlp
->nlp_flag
& NLP_NPR_2B_DISC
) {
2937 spin_lock_irq(shost
->host_lock
);
2938 nlp
->nlp_flag
&= ~NLP_NPR_2B_DISC
;
2939 spin_unlock_irq(shost
->host_lock
);
2940 if (vport
->num_disc_nodes
) {
2941 if (vport
->port_state
< LPFC_VPORT_READY
) {
2942 /* Check if there are more ADISCs to be sent */
2943 lpfc_more_adisc(vport
);
2945 /* Check if there are more PLOGIs to be sent */
2946 lpfc_more_plogi(vport
);
2947 if (vport
->num_disc_nodes
== 0) {
2948 spin_lock_irq(shost
->host_lock
);
2949 vport
->fc_flag
&= ~FC_NDISC_ACTIVE
;
2950 spin_unlock_irq(shost
->host_lock
);
2951 lpfc_can_disctmo(vport
);
2952 lpfc_end_rscn(vport
);
2961 * lpfc_els_retry_delay - Timer function with a ndlp delayed function timer
2962 * @ptr: holder for the pointer to the timer function associated data (ndlp).
2964 * This routine is invoked by the ndlp delayed-function timer to check
2965 * whether there is any pending ELS retry event(s) with the node. If not, it
2966 * simply returns. Otherwise, if there is at least one ELS delayed event, it
2967 * adds the delayed events to the HBA work list and invokes the
2968 * lpfc_worker_wake_up() routine to wake up worker thread to process the
2969 * event. Note that lpfc_nlp_get() is called before posting the event to
2970 * the work list to hold reference count of ndlp so that it guarantees the
2971 * reference to ndlp will still be available when the worker thread gets
2972 * to the event associated with the ndlp.
2975 lpfc_els_retry_delay(unsigned long ptr
)
2977 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) ptr
;
2978 struct lpfc_vport
*vport
= ndlp
->vport
;
2979 struct lpfc_hba
*phba
= vport
->phba
;
2980 unsigned long flags
;
2981 struct lpfc_work_evt
*evtp
= &ndlp
->els_retry_evt
;
2983 spin_lock_irqsave(&phba
->hbalock
, flags
);
2984 if (!list_empty(&evtp
->evt_listp
)) {
2985 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
2989 /* We need to hold the node by incrementing the reference
2990 * count until the queued work is done
2992 evtp
->evt_arg1
= lpfc_nlp_get(ndlp
);
2993 if (evtp
->evt_arg1
) {
2994 evtp
->evt
= LPFC_EVT_ELS_RETRY
;
2995 list_add_tail(&evtp
->evt_listp
, &phba
->work_list
);
2996 lpfc_worker_wake_up(phba
);
2998 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
3003 * lpfc_els_retry_delay_handler - Work thread handler for ndlp delayed function
3004 * @ndlp: pointer to a node-list data structure.
3006 * This routine is the worker-thread handler for processing the @ndlp delayed
3007 * event(s), posted by the lpfc_els_retry_delay() routine. It simply retrieves
3008 * the last ELS command from the associated ndlp and invokes the proper ELS
3009 * function according to the delayed ELS command to retry the command.
3012 lpfc_els_retry_delay_handler(struct lpfc_nodelist
*ndlp
)
3014 struct lpfc_vport
*vport
= ndlp
->vport
;
3015 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
3016 uint32_t cmd
, retry
;
3018 spin_lock_irq(shost
->host_lock
);
3019 cmd
= ndlp
->nlp_last_elscmd
;
3020 ndlp
->nlp_last_elscmd
= 0;
3022 if (!(ndlp
->nlp_flag
& NLP_DELAY_TMO
)) {
3023 spin_unlock_irq(shost
->host_lock
);
3027 ndlp
->nlp_flag
&= ~NLP_DELAY_TMO
;
3028 spin_unlock_irq(shost
->host_lock
);
3030 * If a discovery event readded nlp_delayfunc after timer
3031 * firing and before processing the timer, cancel the
3034 del_timer_sync(&ndlp
->nlp_delayfunc
);
3035 retry
= ndlp
->nlp_retry
;
3036 ndlp
->nlp_retry
= 0;
3040 lpfc_issue_els_flogi(vport
, ndlp
, retry
);
3043 if (!lpfc_issue_els_plogi(vport
, ndlp
->nlp_DID
, retry
)) {
3044 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3045 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_PLOGI_ISSUE
);
3049 if (!lpfc_issue_els_adisc(vport
, ndlp
, retry
)) {
3050 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3051 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_ADISC_ISSUE
);
3055 if (!lpfc_issue_els_prli(vport
, ndlp
, retry
)) {
3056 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3057 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_PRLI_ISSUE
);
3061 if (!lpfc_issue_els_logo(vport
, ndlp
, retry
)) {
3062 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3063 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_LOGO_ISSUE
);
3067 if (!(vport
->fc_flag
& FC_VPORT_NEEDS_INIT_VPI
))
3068 lpfc_issue_els_fdisc(vport
, ndlp
, retry
);
3075 * lpfc_els_retry - Make retry decision on an els command iocb
3076 * @phba: pointer to lpfc hba data structure.
3077 * @cmdiocb: pointer to lpfc command iocb data structure.
3078 * @rspiocb: pointer to lpfc response iocb data structure.
3080 * This routine makes a retry decision on an ELS command IOCB, which has
3081 * failed. The following ELS IOCBs use this function for retrying the command
3082 * when previously issued command responsed with error status: FLOGI, PLOGI,
3083 * PRLI, ADISC, LOGO, and FDISC. Based on the ELS command type and the
3084 * returned error status, it makes the decision whether a retry shall be
3085 * issued for the command, and whether a retry shall be made immediately or
3086 * delayed. In the former case, the corresponding ELS command issuing-function
3087 * is called to retry the command. In the later case, the ELS command shall
3088 * be posted to the ndlp delayed event and delayed function timer set to the
3089 * ndlp for the delayed command issusing.
3092 * 0 - No retry of els command is made
3093 * 1 - Immediate or delayed retry of els command is made
3096 lpfc_els_retry(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
3097 struct lpfc_iocbq
*rspiocb
)
3099 struct lpfc_vport
*vport
= cmdiocb
->vport
;
3100 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
3101 IOCB_t
*irsp
= &rspiocb
->iocb
;
3102 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) cmdiocb
->context1
;
3103 struct lpfc_dmabuf
*pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
3106 int retry
= 0, maxretry
= lpfc_max_els_tries
, delay
= 0;
3112 /* Note: context2 may be 0 for internal driver abort
3113 * of delays ELS command.
3116 if (pcmd
&& pcmd
->virt
) {
3117 elscmd
= (uint32_t *) (pcmd
->virt
);
3121 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
))
3122 did
= ndlp
->nlp_DID
;
3124 /* We should only hit this case for retrying PLOGI */
3125 did
= irsp
->un
.elsreq64
.remoteID
;
3126 ndlp
= lpfc_findnode_did(vport
, did
);
3127 if ((!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
))
3128 && (cmd
!= ELS_CMD_PLOGI
))
3132 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
3133 "Retry ELS: wd7:x%x wd4:x%x did:x%x",
3134 *(((uint32_t *) irsp
) + 7), irsp
->un
.ulpWord
[4], ndlp
->nlp_DID
);
3136 switch (irsp
->ulpStatus
) {
3137 case IOSTAT_FCP_RSP_ERROR
:
3139 case IOSTAT_REMOTE_STOP
:
3140 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
3141 /* This IO was aborted by the target, we don't
3142 * know the rxid and because we did not send the
3143 * ABTS we cannot generate and RRQ.
3145 lpfc_set_rrq_active(phba
, ndlp
,
3146 cmdiocb
->sli4_lxritag
, 0, 0);
3149 case IOSTAT_LOCAL_REJECT
:
3150 switch ((irsp
->un
.ulpWord
[4] & IOERR_PARAM_MASK
)) {
3151 case IOERR_LOOP_OPEN_FAILURE
:
3152 if (cmd
== ELS_CMD_FLOGI
) {
3153 if (PCI_DEVICE_ID_HORNET
==
3154 phba
->pcidev
->device
) {
3155 phba
->fc_topology
= LPFC_TOPOLOGY_LOOP
;
3156 phba
->pport
->fc_myDID
= 0;
3157 phba
->alpa_map
[0] = 0;
3158 phba
->alpa_map
[1] = 0;
3161 if (cmd
== ELS_CMD_PLOGI
&& cmdiocb
->retry
== 0)
3166 case IOERR_ILLEGAL_COMMAND
:
3167 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
3168 "0124 Retry illegal cmd x%x "
3169 "retry:x%x delay:x%x\n",
3170 cmd
, cmdiocb
->retry
, delay
);
3172 /* All command's retry policy */
3174 if (cmdiocb
->retry
> 2)
3178 case IOERR_NO_RESOURCES
:
3179 logerr
= 1; /* HBA out of resources */
3181 if (cmdiocb
->retry
> 100)
3186 case IOERR_ILLEGAL_FRAME
:
3191 case IOERR_SEQUENCE_TIMEOUT
:
3192 case IOERR_INVALID_RPI
:
3193 if (cmd
== ELS_CMD_PLOGI
&&
3194 did
== NameServer_DID
) {
3195 /* Continue forever if plogi to */
3196 /* the nameserver fails */
3205 case IOSTAT_NPORT_RJT
:
3206 case IOSTAT_FABRIC_RJT
:
3207 if (irsp
->un
.ulpWord
[4] & RJT_UNAVAIL_TEMP
) {
3213 case IOSTAT_NPORT_BSY
:
3214 case IOSTAT_FABRIC_BSY
:
3215 logerr
= 1; /* Fabric / Remote NPort out of resources */
3220 stat
.un
.lsRjtError
= be32_to_cpu(irsp
->un
.ulpWord
[4]);
3221 /* Added for Vendor specifc support
3222 * Just keep retrying for these Rsn / Exp codes
3224 switch (stat
.un
.b
.lsRjtRsnCode
) {
3225 case LSRJT_UNABLE_TPC
:
3226 if (stat
.un
.b
.lsRjtRsnCodeExp
==
3227 LSEXP_CMD_IN_PROGRESS
) {
3228 if (cmd
== ELS_CMD_PLOGI
) {
3235 if (stat
.un
.b
.lsRjtRsnCodeExp
==
3236 LSEXP_CANT_GIVE_DATA
) {
3237 if (cmd
== ELS_CMD_PLOGI
) {
3244 if ((cmd
== ELS_CMD_PLOGI
) ||
3245 (cmd
== ELS_CMD_PRLI
)) {
3247 maxretry
= lpfc_max_els_tries
+ 1;
3251 if ((phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
3252 (cmd
== ELS_CMD_FDISC
) &&
3253 (stat
.un
.b
.lsRjtRsnCodeExp
== LSEXP_OUT_OF_RESOURCE
)){
3254 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
3255 "0125 FDISC Failed (x%x). "
3256 "Fabric out of resources\n",
3257 stat
.un
.lsRjtError
);
3258 lpfc_vport_set_state(vport
,
3259 FC_VPORT_NO_FABRIC_RSCS
);
3263 case LSRJT_LOGICAL_BSY
:
3264 if ((cmd
== ELS_CMD_PLOGI
) ||
3265 (cmd
== ELS_CMD_PRLI
)) {
3268 } else if (cmd
== ELS_CMD_FDISC
) {
3269 /* FDISC retry policy */
3271 if (cmdiocb
->retry
>= 32)
3277 case LSRJT_LOGICAL_ERR
:
3278 /* There are some cases where switches return this
3279 * error when they are not ready and should be returning
3280 * Logical Busy. We should delay every time.
3282 if (cmd
== ELS_CMD_FDISC
&&
3283 stat
.un
.b
.lsRjtRsnCodeExp
== LSEXP_PORT_LOGIN_REQ
) {
3289 case LSRJT_PROTOCOL_ERR
:
3290 if ((phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
3291 (cmd
== ELS_CMD_FDISC
) &&
3292 ((stat
.un
.b
.lsRjtRsnCodeExp
== LSEXP_INVALID_PNAME
) ||
3293 (stat
.un
.b
.lsRjtRsnCodeExp
== LSEXP_INVALID_NPORT_ID
))
3295 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
3296 "0122 FDISC Failed (x%x). "
3297 "Fabric Detected Bad WWN\n",
3298 stat
.un
.lsRjtError
);
3299 lpfc_vport_set_state(vport
,
3300 FC_VPORT_FABRIC_REJ_WWN
);
3303 case LSRJT_VENDOR_UNIQUE
:
3304 if ((stat
.un
.b
.vendorUnique
== 0x45) &&
3305 (cmd
== ELS_CMD_FLOGI
)) {
3312 case IOSTAT_INTERMED_RSP
:
3320 if (did
== FDMI_DID
)
3323 if ((cmd
== ELS_CMD_FLOGI
) &&
3324 (phba
->fc_topology
!= LPFC_TOPOLOGY_LOOP
) &&
3325 !lpfc_error_lost_link(irsp
)) {
3326 /* FLOGI retry policy */
3328 /* retry FLOGI forever */
3329 if (phba
->link_flag
!= LS_LOOPBACK_MODE
)
3334 if (cmdiocb
->retry
>= 100)
3336 else if (cmdiocb
->retry
>= 32)
3338 } else if ((cmd
== ELS_CMD_FDISC
) && !lpfc_error_lost_link(irsp
)) {
3339 /* retry FDISCs every second up to devloss */
3341 maxretry
= vport
->cfg_devloss_tmo
;
3346 if (maxretry
&& (cmdiocb
->retry
>= maxretry
)) {
3347 phba
->fc_stat
.elsRetryExceeded
++;
3351 if ((vport
->load_flag
& FC_UNLOADING
) != 0)
3356 if ((cmd
== ELS_CMD_PLOGI
) || (cmd
== ELS_CMD_FDISC
)) {
3357 /* Stop retrying PLOGI and FDISC if in FCF discovery */
3358 if (phba
->fcf
.fcf_flag
& FCF_DISCOVERY
) {
3359 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
3360 "2849 Stop retry ELS command "
3361 "x%x to remote NPORT x%x, "
3362 "Data: x%x x%x\n", cmd
, did
,
3363 cmdiocb
->retry
, delay
);
3368 /* Retry ELS command <elsCmd> to remote NPORT <did> */
3369 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
3370 "0107 Retry ELS command x%x to remote "
3371 "NPORT x%x Data: x%x x%x\n",
3372 cmd
, did
, cmdiocb
->retry
, delay
);
3374 if (((cmd
== ELS_CMD_PLOGI
) || (cmd
== ELS_CMD_ADISC
)) &&
3375 ((irsp
->ulpStatus
!= IOSTAT_LOCAL_REJECT
) ||
3376 ((irsp
->un
.ulpWord
[4] & IOERR_PARAM_MASK
) !=
3377 IOERR_NO_RESOURCES
))) {
3378 /* Don't reset timer for no resources */
3380 /* If discovery / RSCN timer is running, reset it */
3381 if (timer_pending(&vport
->fc_disctmo
) ||
3382 (vport
->fc_flag
& FC_RSCN_MODE
))
3383 lpfc_set_disctmo(vport
);
3386 phba
->fc_stat
.elsXmitRetry
++;
3387 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
) && delay
) {
3388 phba
->fc_stat
.elsDelayRetry
++;
3389 ndlp
->nlp_retry
= cmdiocb
->retry
;
3391 /* delay is specified in milliseconds */
3392 mod_timer(&ndlp
->nlp_delayfunc
,
3393 jiffies
+ msecs_to_jiffies(delay
));
3394 spin_lock_irq(shost
->host_lock
);
3395 ndlp
->nlp_flag
|= NLP_DELAY_TMO
;
3396 spin_unlock_irq(shost
->host_lock
);
3398 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3399 if (cmd
== ELS_CMD_PRLI
)
3400 lpfc_nlp_set_state(vport
, ndlp
,
3401 NLP_STE_PRLI_ISSUE
);
3403 lpfc_nlp_set_state(vport
, ndlp
,
3405 ndlp
->nlp_last_elscmd
= cmd
;
3411 lpfc_issue_els_flogi(vport
, ndlp
, cmdiocb
->retry
);
3414 lpfc_issue_els_fdisc(vport
, ndlp
, cmdiocb
->retry
);
3417 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
)) {
3418 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3419 lpfc_nlp_set_state(vport
, ndlp
,
3420 NLP_STE_PLOGI_ISSUE
);
3422 lpfc_issue_els_plogi(vport
, did
, cmdiocb
->retry
);
3425 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3426 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_ADISC_ISSUE
);
3427 lpfc_issue_els_adisc(vport
, ndlp
, cmdiocb
->retry
);
3430 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3431 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_PRLI_ISSUE
);
3432 lpfc_issue_els_prli(vport
, ndlp
, cmdiocb
->retry
);
3435 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3436 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_LOGO_ISSUE
);
3437 lpfc_issue_els_logo(vport
, ndlp
, cmdiocb
->retry
);
3441 /* No retry ELS command <elsCmd> to remote NPORT <did> */
3443 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
3444 "0137 No retry ELS command x%x to remote "
3445 "NPORT x%x: Out of Resources: Error:x%x/%x\n",
3446 cmd
, did
, irsp
->ulpStatus
,
3447 irsp
->un
.ulpWord
[4]);
3450 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
3451 "0108 No retry ELS command x%x to remote "
3452 "NPORT x%x Retried:%d Error:x%x/%x\n",
3453 cmd
, did
, cmdiocb
->retry
, irsp
->ulpStatus
,
3454 irsp
->un
.ulpWord
[4]);
3460 * lpfc_els_free_data - Free lpfc dma buffer and data structure with an iocb
3461 * @phba: pointer to lpfc hba data structure.
3462 * @buf_ptr1: pointer to the lpfc DMA buffer data structure.
3464 * This routine releases the lpfc DMA (Direct Memory Access) buffer(s)
3465 * associated with a command IOCB back to the lpfc DMA buffer pool. It first
3466 * checks to see whether there is a lpfc DMA buffer associated with the
3467 * response of the command IOCB. If so, it will be released before releasing
3468 * the lpfc DMA buffer associated with the IOCB itself.
3471 * 0 - Successfully released lpfc DMA buffer (currently, always return 0)
3474 lpfc_els_free_data(struct lpfc_hba
*phba
, struct lpfc_dmabuf
*buf_ptr1
)
3476 struct lpfc_dmabuf
*buf_ptr
;
3478 /* Free the response before processing the command. */
3479 if (!list_empty(&buf_ptr1
->list
)) {
3480 list_remove_head(&buf_ptr1
->list
, buf_ptr
,
3483 lpfc_mbuf_free(phba
, buf_ptr
->virt
, buf_ptr
->phys
);
3486 lpfc_mbuf_free(phba
, buf_ptr1
->virt
, buf_ptr1
->phys
);
3492 * lpfc_els_free_bpl - Free lpfc dma buffer and data structure with bpl
3493 * @phba: pointer to lpfc hba data structure.
3494 * @buf_ptr: pointer to the lpfc dma buffer data structure.
3496 * This routine releases the lpfc Direct Memory Access (DMA) buffer
3497 * associated with a Buffer Pointer List (BPL) back to the lpfc DMA buffer
3501 * 0 - Successfully released lpfc DMA buffer (currently, always return 0)
3504 lpfc_els_free_bpl(struct lpfc_hba
*phba
, struct lpfc_dmabuf
*buf_ptr
)
3506 lpfc_mbuf_free(phba
, buf_ptr
->virt
, buf_ptr
->phys
);
3512 * lpfc_els_free_iocb - Free a command iocb and its associated resources
3513 * @phba: pointer to lpfc hba data structure.
3514 * @elsiocb: pointer to lpfc els command iocb data structure.
3516 * This routine frees a command IOCB and its associated resources. The
3517 * command IOCB data structure contains the reference to various associated
3518 * resources, these fields must be set to NULL if the associated reference
3520 * context1 - reference to ndlp
3521 * context2 - reference to cmd
3522 * context2->next - reference to rsp
3523 * context3 - reference to bpl
3525 * It first properly decrements the reference count held on ndlp for the
3526 * IOCB completion callback function. If LPFC_DELAY_MEM_FREE flag is not
3527 * set, it invokes the lpfc_els_free_data() routine to release the Direct
3528 * Memory Access (DMA) buffers associated with the IOCB. Otherwise, it
3529 * adds the DMA buffer the @phba data structure for the delayed release.
3530 * If reference to the Buffer Pointer List (BPL) is present, the
3531 * lpfc_els_free_bpl() routine is invoked to release the DMA memory
3532 * associated with BPL. Finally, the lpfc_sli_release_iocbq() routine is
3533 * invoked to release the IOCB data structure back to @phba IOCBQ list.
3536 * 0 - Success (currently, always return 0)
3539 lpfc_els_free_iocb(struct lpfc_hba
*phba
, struct lpfc_iocbq
*elsiocb
)
3541 struct lpfc_dmabuf
*buf_ptr
, *buf_ptr1
;
3542 struct lpfc_nodelist
*ndlp
;
3544 ndlp
= (struct lpfc_nodelist
*)elsiocb
->context1
;
3546 if (ndlp
->nlp_flag
& NLP_DEFER_RM
) {
3549 /* If the ndlp is not being used by another discovery
3552 if (!lpfc_nlp_not_used(ndlp
)) {
3553 /* If ndlp is being used by another discovery
3554 * thread, just clear NLP_DEFER_RM
3556 ndlp
->nlp_flag
&= ~NLP_DEFER_RM
;
3561 elsiocb
->context1
= NULL
;
3563 /* context2 = cmd, context2->next = rsp, context3 = bpl */
3564 if (elsiocb
->context2
) {
3565 if (elsiocb
->iocb_flag
& LPFC_DELAY_MEM_FREE
) {
3566 /* Firmware could still be in progress of DMAing
3567 * payload, so don't free data buffer till after
3570 elsiocb
->iocb_flag
&= ~LPFC_DELAY_MEM_FREE
;
3571 buf_ptr
= elsiocb
->context2
;
3572 elsiocb
->context2
= NULL
;
3575 spin_lock_irq(&phba
->hbalock
);
3576 if (!list_empty(&buf_ptr
->list
)) {
3577 list_remove_head(&buf_ptr
->list
,
3578 buf_ptr1
, struct lpfc_dmabuf
,
3580 INIT_LIST_HEAD(&buf_ptr1
->list
);
3581 list_add_tail(&buf_ptr1
->list
,
3585 INIT_LIST_HEAD(&buf_ptr
->list
);
3586 list_add_tail(&buf_ptr
->list
, &phba
->elsbuf
);
3588 spin_unlock_irq(&phba
->hbalock
);
3591 buf_ptr1
= (struct lpfc_dmabuf
*) elsiocb
->context2
;
3592 lpfc_els_free_data(phba
, buf_ptr1
);
3593 elsiocb
->context2
= NULL
;
3597 if (elsiocb
->context3
) {
3598 buf_ptr
= (struct lpfc_dmabuf
*) elsiocb
->context3
;
3599 lpfc_els_free_bpl(phba
, buf_ptr
);
3600 elsiocb
->context3
= NULL
;
3602 lpfc_sli_release_iocbq(phba
, elsiocb
);
3607 * lpfc_cmpl_els_logo_acc - Completion callback function to logo acc response
3608 * @phba: pointer to lpfc hba data structure.
3609 * @cmdiocb: pointer to lpfc command iocb data structure.
3610 * @rspiocb: pointer to lpfc response iocb data structure.
3612 * This routine is the completion callback function to the Logout (LOGO)
3613 * Accept (ACC) Response ELS command. This routine is invoked to indicate
3614 * the completion of the LOGO process. It invokes the lpfc_nlp_not_used() to
3615 * release the ndlp if it has the last reference remaining (reference count
3616 * is 1). If succeeded (meaning ndlp released), it sets the IOCB context1
3617 * field to NULL to inform the following lpfc_els_free_iocb() routine no
3618 * ndlp reference count needs to be decremented. Otherwise, the ndlp
3619 * reference use-count shall be decremented by the lpfc_els_free_iocb()
3620 * routine. Finally, the lpfc_els_free_iocb() is invoked to release the
3621 * IOCB data structure.
3624 lpfc_cmpl_els_logo_acc(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
3625 struct lpfc_iocbq
*rspiocb
)
3627 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) cmdiocb
->context1
;
3628 struct lpfc_vport
*vport
= cmdiocb
->vport
;
3631 irsp
= &rspiocb
->iocb
;
3632 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
3633 "ACC LOGO cmpl: status:x%x/x%x did:x%x",
3634 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4], ndlp
->nlp_DID
);
3635 /* ACC to LOGO completes to NPort <nlp_DID> */
3636 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
3637 "0109 ACC to LOGO completes to NPort x%x "
3638 "Data: x%x x%x x%x\n",
3639 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
3642 if (ndlp
->nlp_state
== NLP_STE_NPR_NODE
) {
3643 /* NPort Recovery mode or node is just allocated */
3644 if (!lpfc_nlp_not_used(ndlp
)) {
3645 /* If the ndlp is being used by another discovery
3646 * thread, just unregister the RPI.
3648 lpfc_unreg_rpi(vport
, ndlp
);
3650 /* Indicate the node has already released, should
3651 * not reference to it from within lpfc_els_free_iocb.
3653 cmdiocb
->context1
= NULL
;
3658 * The driver received a LOGO from the rport and has ACK'd it.
3659 * At this point, the driver is done so release the IOCB
3661 lpfc_els_free_iocb(phba
, cmdiocb
);
3665 * lpfc_mbx_cmpl_dflt_rpi - Completion callbk func for unreg dflt rpi mbox cmd
3666 * @phba: pointer to lpfc hba data structure.
3667 * @pmb: pointer to the driver internal queue element for mailbox command.
3669 * This routine is the completion callback function for unregister default
3670 * RPI (Remote Port Index) mailbox command to the @phba. It simply releases
3671 * the associated lpfc Direct Memory Access (DMA) buffer back to the pool and
3672 * decrements the ndlp reference count held for this completion callback
3673 * function. After that, it invokes the lpfc_nlp_not_used() to check
3674 * whether there is only one reference left on the ndlp. If so, it will
3675 * perform one more decrement and trigger the release of the ndlp.
3678 lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
3680 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
3681 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
3683 pmb
->context1
= NULL
;
3684 pmb
->context2
= NULL
;
3686 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3688 mempool_free(pmb
, phba
->mbox_mem_pool
);
3690 lpfc_printf_vlog(ndlp
->vport
, KERN_INFO
, LOG_NODE
,
3691 "0006 rpi%x DID:%x flg:%x %d map:%x %p\n",
3692 ndlp
->nlp_rpi
, ndlp
->nlp_DID
, ndlp
->nlp_flag
,
3693 atomic_read(&ndlp
->kref
.refcount
),
3694 ndlp
->nlp_usg_map
, ndlp
);
3695 if (NLP_CHK_NODE_ACT(ndlp
)) {
3697 /* This is the end of the default RPI cleanup logic for
3698 * this ndlp. If no other discovery threads are using
3699 * this ndlp, free all resources associated with it.
3701 lpfc_nlp_not_used(ndlp
);
3703 lpfc_drop_node(ndlp
->vport
, ndlp
);
3711 * lpfc_cmpl_els_rsp - Completion callback function for els response iocb cmd
3712 * @phba: pointer to lpfc hba data structure.
3713 * @cmdiocb: pointer to lpfc command iocb data structure.
3714 * @rspiocb: pointer to lpfc response iocb data structure.
3716 * This routine is the completion callback function for ELS Response IOCB
3717 * command. In normal case, this callback function just properly sets the
3718 * nlp_flag bitmap in the ndlp data structure, if the mbox command reference
3719 * field in the command IOCB is not NULL, the referred mailbox command will
3720 * be send out, and then invokes the lpfc_els_free_iocb() routine to release
3721 * the IOCB. Under error conditions, such as when a LS_RJT is returned or a
3722 * link down event occurred during the discovery, the lpfc_nlp_not_used()
3723 * routine shall be invoked trying to release the ndlp if no other threads
3724 * are currently referring it.
3727 lpfc_cmpl_els_rsp(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
3728 struct lpfc_iocbq
*rspiocb
)
3730 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) cmdiocb
->context1
;
3731 struct lpfc_vport
*vport
= ndlp
? ndlp
->vport
: NULL
;
3732 struct Scsi_Host
*shost
= vport
? lpfc_shost_from_vport(vport
) : NULL
;
3735 LPFC_MBOXQ_t
*mbox
= NULL
;
3736 struct lpfc_dmabuf
*mp
= NULL
;
3737 uint32_t ls_rjt
= 0;
3739 irsp
= &rspiocb
->iocb
;
3741 if (cmdiocb
->context_un
.mbox
)
3742 mbox
= cmdiocb
->context_un
.mbox
;
3744 /* First determine if this is a LS_RJT cmpl. Note, this callback
3745 * function can have cmdiocb->contest1 (ndlp) field set to NULL.
3747 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) cmdiocb
->context2
)->virt
);
3748 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
) &&
3749 (*((uint32_t *) (pcmd
)) == ELS_CMD_LS_RJT
)) {
3750 /* A LS_RJT associated with Default RPI cleanup has its own
3751 * separate code path.
3753 if (!(ndlp
->nlp_flag
& NLP_RM_DFLT_RPI
))
3757 /* Check to see if link went down during discovery */
3758 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
) || lpfc_els_chk_latt(vport
)) {
3760 mp
= (struct lpfc_dmabuf
*) mbox
->context1
;
3762 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3765 mempool_free(mbox
, phba
->mbox_mem_pool
);
3767 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
) &&
3768 (ndlp
->nlp_flag
& NLP_RM_DFLT_RPI
))
3769 if (lpfc_nlp_not_used(ndlp
)) {
3771 /* Indicate the node has already released,
3772 * should not reference to it from within
3773 * the routine lpfc_els_free_iocb.
3775 cmdiocb
->context1
= NULL
;
3780 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
3781 "ELS rsp cmpl: status:x%x/x%x did:x%x",
3782 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
3783 cmdiocb
->iocb
.un
.elsreq64
.remoteID
);
3784 /* ELS response tag <ulpIoTag> completes */
3785 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
3786 "0110 ELS response tag x%x completes "
3787 "Data: x%x x%x x%x x%x x%x x%x x%x\n",
3788 cmdiocb
->iocb
.ulpIoTag
, rspiocb
->iocb
.ulpStatus
,
3789 rspiocb
->iocb
.un
.ulpWord
[4], rspiocb
->iocb
.ulpTimeout
,
3790 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
3793 if ((rspiocb
->iocb
.ulpStatus
== 0)
3794 && (ndlp
->nlp_flag
& NLP_ACC_REGLOGIN
)) {
3795 lpfc_unreg_rpi(vport
, ndlp
);
3796 /* Increment reference count to ndlp to hold the
3797 * reference to ndlp for the callback function.
3799 mbox
->context2
= lpfc_nlp_get(ndlp
);
3800 mbox
->vport
= vport
;
3801 if (ndlp
->nlp_flag
& NLP_RM_DFLT_RPI
) {
3802 mbox
->mbox_flag
|= LPFC_MBX_IMED_UNREG
;
3803 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_dflt_rpi
;
3806 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_reg_login
;
3807 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3808 lpfc_nlp_set_state(vport
, ndlp
,
3809 NLP_STE_REG_LOGIN_ISSUE
);
3812 ndlp
->nlp_flag
|= NLP_REG_LOGIN_SEND
;
3813 if (lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
)
3814 != MBX_NOT_FINISHED
)
3817 /* Decrement the ndlp reference count we
3818 * set for this failed mailbox command.
3821 ndlp
->nlp_flag
&= ~NLP_REG_LOGIN_SEND
;
3823 /* ELS rsp: Cannot issue reg_login for <NPortid> */
3824 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
3825 "0138 ELS rsp: Cannot issue reg_login for x%x "
3826 "Data: x%x x%x x%x\n",
3827 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
3830 if (lpfc_nlp_not_used(ndlp
)) {
3832 /* Indicate node has already been released,
3833 * should not reference to it from within
3834 * the routine lpfc_els_free_iocb.
3836 cmdiocb
->context1
= NULL
;
3839 /* Do not drop node for lpfc_els_abort'ed ELS cmds */
3840 if (!lpfc_error_lost_link(irsp
) &&
3841 ndlp
->nlp_flag
& NLP_ACC_REGLOGIN
) {
3842 if (lpfc_nlp_not_used(ndlp
)) {
3844 /* Indicate node has already been
3845 * released, should not reference
3846 * to it from within the routine
3847 * lpfc_els_free_iocb.
3849 cmdiocb
->context1
= NULL
;
3853 mp
= (struct lpfc_dmabuf
*) mbox
->context1
;
3855 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3858 mempool_free(mbox
, phba
->mbox_mem_pool
);
3861 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
)) {
3862 spin_lock_irq(shost
->host_lock
);
3863 ndlp
->nlp_flag
&= ~(NLP_ACC_REGLOGIN
| NLP_RM_DFLT_RPI
);
3864 spin_unlock_irq(shost
->host_lock
);
3866 /* If the node is not being used by another discovery thread,
3867 * and we are sending a reject, we are done with it.
3868 * Release driver reference count here and free associated
3872 if (lpfc_nlp_not_used(ndlp
))
3873 /* Indicate node has already been released,
3874 * should not reference to it from within
3875 * the routine lpfc_els_free_iocb.
3877 cmdiocb
->context1
= NULL
;
3881 lpfc_els_free_iocb(phba
, cmdiocb
);
3886 * lpfc_els_rsp_acc - Prepare and issue an acc response iocb command
3887 * @vport: pointer to a host virtual N_Port data structure.
3888 * @flag: the els command code to be accepted.
3889 * @oldiocb: pointer to the original lpfc command iocb data structure.
3890 * @ndlp: pointer to a node-list data structure.
3891 * @mbox: pointer to the driver internal queue element for mailbox command.
3893 * This routine prepares and issues an Accept (ACC) response IOCB
3894 * command. It uses the @flag to properly set up the IOCB field for the
3895 * specific ACC response command to be issued and invokes the
3896 * lpfc_sli_issue_iocb() routine to send out ACC response IOCB. If a
3897 * @mbox pointer is passed in, it will be put into the context_un.mbox
3898 * field of the IOCB for the completion callback function to issue the
3899 * mailbox command to the HBA later when callback is invoked.
3901 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
3902 * will be incremented by 1 for holding the ndlp and the reference to ndlp
3903 * will be stored into the context1 field of the IOCB for the completion
3904 * callback function to the corresponding response ELS IOCB command.
3907 * 0 - Successfully issued acc response
3908 * 1 - Failed to issue acc response
3911 lpfc_els_rsp_acc(struct lpfc_vport
*vport
, uint32_t flag
,
3912 struct lpfc_iocbq
*oldiocb
, struct lpfc_nodelist
*ndlp
,
3915 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
3916 struct lpfc_hba
*phba
= vport
->phba
;
3919 struct lpfc_iocbq
*elsiocb
;
3921 struct serv_parm
*sp
;
3924 ELS_PKT
*els_pkt_ptr
;
3926 oldcmd
= &oldiocb
->iocb
;
3930 cmdsize
= sizeof(uint32_t);
3931 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
,
3932 ndlp
, ndlp
->nlp_DID
, ELS_CMD_ACC
);
3934 spin_lock_irq(shost
->host_lock
);
3935 ndlp
->nlp_flag
&= ~NLP_LOGO_ACC
;
3936 spin_unlock_irq(shost
->host_lock
);
3940 icmd
= &elsiocb
->iocb
;
3941 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
3942 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
3943 pcmd
= (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
3944 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
3945 pcmd
+= sizeof(uint32_t);
3947 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
3948 "Issue ACC: did:x%x flg:x%x",
3949 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
3953 cmdsize
= (sizeof(struct serv_parm
) + sizeof(uint32_t));
3954 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
,
3955 ndlp
, ndlp
->nlp_DID
, ELS_CMD_ACC
);
3959 icmd
= &elsiocb
->iocb
;
3960 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
3961 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
3962 pcmd
= (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
3965 elsiocb
->context_un
.mbox
= mbox
;
3967 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
3968 pcmd
+= sizeof(uint32_t);
3969 sp
= (struct serv_parm
*)pcmd
;
3971 if (flag
== ELS_CMD_FLOGI
) {
3972 /* Copy the received service parameters back */
3973 memcpy(sp
, &phba
->fc_fabparam
,
3974 sizeof(struct serv_parm
));
3976 /* Clear the F_Port bit */
3979 /* Mark all class service parameters as invalid */
3980 sp
->cls1
.classValid
= 0;
3981 sp
->cls2
.classValid
= 0;
3982 sp
->cls3
.classValid
= 0;
3983 sp
->cls4
.classValid
= 0;
3985 /* Copy our worldwide names */
3986 memcpy(&sp
->portName
, &vport
->fc_sparam
.portName
,
3987 sizeof(struct lpfc_name
));
3988 memcpy(&sp
->nodeName
, &vport
->fc_sparam
.nodeName
,
3989 sizeof(struct lpfc_name
));
3991 memcpy(pcmd
, &vport
->fc_sparam
,
3992 sizeof(struct serv_parm
));
3995 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
3996 "Issue ACC FLOGI/PLOGI: did:x%x flg:x%x",
3997 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
4000 cmdsize
= sizeof(uint32_t) + sizeof(PRLO
);
4001 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
,
4002 ndlp
, ndlp
->nlp_DID
, ELS_CMD_PRLO
);
4006 icmd
= &elsiocb
->iocb
;
4007 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
4008 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
4009 pcmd
= (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
4011 memcpy(pcmd
, ((struct lpfc_dmabuf
*) oldiocb
->context2
)->virt
,
4012 sizeof(uint32_t) + sizeof(PRLO
));
4013 *((uint32_t *) (pcmd
)) = ELS_CMD_PRLO_ACC
;
4014 els_pkt_ptr
= (ELS_PKT
*) pcmd
;
4015 els_pkt_ptr
->un
.prlo
.acceptRspCode
= PRLO_REQ_EXECUTED
;
4017 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
4018 "Issue ACC PRLO: did:x%x flg:x%x",
4019 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
4024 /* Xmit ELS ACC response tag <ulpIoTag> */
4025 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4026 "0128 Xmit ELS ACC response tag x%x, XRI: x%x, "
4027 "DID: x%x, nlp_flag: x%x nlp_state: x%x RPI: x%x "
4029 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
4030 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
4031 ndlp
->nlp_rpi
, vport
->fc_flag
);
4032 if (ndlp
->nlp_flag
& NLP_LOGO_ACC
) {
4033 spin_lock_irq(shost
->host_lock
);
4034 if (!(ndlp
->nlp_flag
& NLP_RPI_REGISTERED
||
4035 ndlp
->nlp_flag
& NLP_REG_LOGIN_SEND
))
4036 ndlp
->nlp_flag
&= ~NLP_LOGO_ACC
;
4037 spin_unlock_irq(shost
->host_lock
);
4038 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_logo_acc
;
4040 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
4043 phba
->fc_stat
.elsXmitACC
++;
4044 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
4045 if (rc
== IOCB_ERROR
) {
4046 lpfc_els_free_iocb(phba
, elsiocb
);
4053 * lpfc_els_rsp_reject - Propare and issue a rjt response iocb command
4054 * @vport: pointer to a virtual N_Port data structure.
4056 * @oldiocb: pointer to the original lpfc command iocb data structure.
4057 * @ndlp: pointer to a node-list data structure.
4058 * @mbox: pointer to the driver internal queue element for mailbox command.
4060 * This routine prepares and issue an Reject (RJT) response IOCB
4061 * command. If a @mbox pointer is passed in, it will be put into the
4062 * context_un.mbox field of the IOCB for the completion callback function
4063 * to issue to the HBA later.
4065 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4066 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4067 * will be stored into the context1 field of the IOCB for the completion
4068 * callback function to the reject response ELS IOCB command.
4071 * 0 - Successfully issued reject response
4072 * 1 - Failed to issue reject response
4075 lpfc_els_rsp_reject(struct lpfc_vport
*vport
, uint32_t rejectError
,
4076 struct lpfc_iocbq
*oldiocb
, struct lpfc_nodelist
*ndlp
,
4079 struct lpfc_hba
*phba
= vport
->phba
;
4082 struct lpfc_iocbq
*elsiocb
;
4087 cmdsize
= 2 * sizeof(uint32_t);
4088 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
, ndlp
,
4089 ndlp
->nlp_DID
, ELS_CMD_LS_RJT
);
4093 icmd
= &elsiocb
->iocb
;
4094 oldcmd
= &oldiocb
->iocb
;
4095 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
4096 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
4097 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
4099 *((uint32_t *) (pcmd
)) = ELS_CMD_LS_RJT
;
4100 pcmd
+= sizeof(uint32_t);
4101 *((uint32_t *) (pcmd
)) = rejectError
;
4104 elsiocb
->context_un
.mbox
= mbox
;
4106 /* Xmit ELS RJT <err> response tag <ulpIoTag> */
4107 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4108 "0129 Xmit ELS RJT x%x response tag x%x "
4109 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
4111 rejectError
, elsiocb
->iotag
,
4112 elsiocb
->iocb
.ulpContext
, ndlp
->nlp_DID
,
4113 ndlp
->nlp_flag
, ndlp
->nlp_state
, ndlp
->nlp_rpi
);
4114 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
4115 "Issue LS_RJT: did:x%x flg:x%x err:x%x",
4116 ndlp
->nlp_DID
, ndlp
->nlp_flag
, rejectError
);
4118 phba
->fc_stat
.elsXmitLSRJT
++;
4119 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
4120 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
4122 if (rc
== IOCB_ERROR
) {
4123 lpfc_els_free_iocb(phba
, elsiocb
);
4130 * lpfc_els_rsp_adisc_acc - Prepare and issue acc response to adisc iocb cmd
4131 * @vport: pointer to a virtual N_Port data structure.
4132 * @oldiocb: pointer to the original lpfc command iocb data structure.
4133 * @ndlp: pointer to a node-list data structure.
4135 * This routine prepares and issues an Accept (ACC) response to Address
4136 * Discover (ADISC) ELS command. It simply prepares the payload of the IOCB
4137 * and invokes the lpfc_sli_issue_iocb() routine to send out the command.
4139 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4140 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4141 * will be stored into the context1 field of the IOCB for the completion
4142 * callback function to the ADISC Accept response ELS IOCB command.
4145 * 0 - Successfully issued acc adisc response
4146 * 1 - Failed to issue adisc acc response
4149 lpfc_els_rsp_adisc_acc(struct lpfc_vport
*vport
, struct lpfc_iocbq
*oldiocb
,
4150 struct lpfc_nodelist
*ndlp
)
4152 struct lpfc_hba
*phba
= vport
->phba
;
4154 IOCB_t
*icmd
, *oldcmd
;
4155 struct lpfc_iocbq
*elsiocb
;
4160 cmdsize
= sizeof(uint32_t) + sizeof(ADISC
);
4161 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
, ndlp
,
4162 ndlp
->nlp_DID
, ELS_CMD_ACC
);
4166 icmd
= &elsiocb
->iocb
;
4167 oldcmd
= &oldiocb
->iocb
;
4168 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
4169 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
4171 /* Xmit ADISC ACC response tag <ulpIoTag> */
4172 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4173 "0130 Xmit ADISC ACC response iotag x%x xri: "
4174 "x%x, did x%x, nlp_flag x%x, nlp_state x%x rpi x%x\n",
4175 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
4176 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
4178 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
4180 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
4181 pcmd
+= sizeof(uint32_t);
4183 ap
= (ADISC
*) (pcmd
);
4184 ap
->hardAL_PA
= phba
->fc_pref_ALPA
;
4185 memcpy(&ap
->portName
, &vport
->fc_portname
, sizeof(struct lpfc_name
));
4186 memcpy(&ap
->nodeName
, &vport
->fc_nodename
, sizeof(struct lpfc_name
));
4187 ap
->DID
= be32_to_cpu(vport
->fc_myDID
);
4189 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
4190 "Issue ACC ADISC: did:x%x flg:x%x",
4191 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
4193 phba
->fc_stat
.elsXmitACC
++;
4194 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
4195 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
4196 if (rc
== IOCB_ERROR
) {
4197 lpfc_els_free_iocb(phba
, elsiocb
);
4204 * lpfc_els_rsp_prli_acc - Prepare and issue acc response to prli iocb cmd
4205 * @vport: pointer to a virtual N_Port data structure.
4206 * @oldiocb: pointer to the original lpfc command iocb data structure.
4207 * @ndlp: pointer to a node-list data structure.
4209 * This routine prepares and issues an Accept (ACC) response to Process
4210 * Login (PRLI) ELS command. It simply prepares the payload of the IOCB
4211 * and invokes the lpfc_sli_issue_iocb() routine to send out the command.
4213 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4214 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4215 * will be stored into the context1 field of the IOCB for the completion
4216 * callback function to the PRLI Accept response ELS IOCB command.
4219 * 0 - Successfully issued acc prli response
4220 * 1 - Failed to issue acc prli response
4223 lpfc_els_rsp_prli_acc(struct lpfc_vport
*vport
, struct lpfc_iocbq
*oldiocb
,
4224 struct lpfc_nodelist
*ndlp
)
4226 struct lpfc_hba
*phba
= vport
->phba
;
4231 struct lpfc_iocbq
*elsiocb
;
4236 cmdsize
= sizeof(uint32_t) + sizeof(PRLI
);
4237 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
, ndlp
,
4238 ndlp
->nlp_DID
, (ELS_CMD_ACC
| (ELS_CMD_PRLI
& ~ELS_RSP_MASK
)));
4242 icmd
= &elsiocb
->iocb
;
4243 oldcmd
= &oldiocb
->iocb
;
4244 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
4245 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
4247 /* Xmit PRLI ACC response tag <ulpIoTag> */
4248 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4249 "0131 Xmit PRLI ACC response tag x%x xri x%x, "
4250 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
4251 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
4252 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
4254 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
4256 *((uint32_t *) (pcmd
)) = (ELS_CMD_ACC
| (ELS_CMD_PRLI
& ~ELS_RSP_MASK
));
4257 pcmd
+= sizeof(uint32_t);
4259 /* For PRLI, remainder of payload is PRLI parameter page */
4260 memset(pcmd
, 0, sizeof(PRLI
));
4262 npr
= (PRLI
*) pcmd
;
4265 * If the remote port is a target and our firmware version is 3.20 or
4266 * later, set the following bits for FC-TAPE support.
4268 if ((ndlp
->nlp_type
& NLP_FCP_TARGET
) &&
4269 (vpd
->rev
.feaLevelHigh
>= 0x02)) {
4270 npr
->ConfmComplAllowed
= 1;
4272 npr
->TaskRetryIdReq
= 1;
4275 npr
->acceptRspCode
= PRLI_REQ_EXECUTED
;
4276 npr
->estabImagePair
= 1;
4277 npr
->readXferRdyDis
= 1;
4278 npr
->ConfmComplAllowed
= 1;
4280 npr
->prliType
= PRLI_FCP_TYPE
;
4281 npr
->initiatorFunc
= 1;
4283 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
4284 "Issue ACC PRLI: did:x%x flg:x%x",
4285 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
4287 phba
->fc_stat
.elsXmitACC
++;
4288 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
4290 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
4291 if (rc
== IOCB_ERROR
) {
4292 lpfc_els_free_iocb(phba
, elsiocb
);
4299 * lpfc_els_rsp_rnid_acc - Issue rnid acc response iocb command
4300 * @vport: pointer to a virtual N_Port data structure.
4301 * @format: rnid command format.
4302 * @oldiocb: pointer to the original lpfc command iocb data structure.
4303 * @ndlp: pointer to a node-list data structure.
4305 * This routine issues a Request Node Identification Data (RNID) Accept
4306 * (ACC) response. It constructs the RNID ACC response command according to
4307 * the proper @format and then calls the lpfc_sli_issue_iocb() routine to
4308 * issue the response. Note that this command does not need to hold the ndlp
4309 * reference count for the callback. So, the ndlp reference count taken by
4310 * the lpfc_prep_els_iocb() routine is put back and the context1 field of
4311 * IOCB is set to NULL to indicate to the lpfc_els_free_iocb() routine that
4312 * there is no ndlp reference available.
4314 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4315 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4316 * will be stored into the context1 field of the IOCB for the completion
4317 * callback function. However, for the RNID Accept Response ELS command,
4318 * this is undone later by this routine after the IOCB is allocated.
4321 * 0 - Successfully issued acc rnid response
4322 * 1 - Failed to issue acc rnid response
4325 lpfc_els_rsp_rnid_acc(struct lpfc_vport
*vport
, uint8_t format
,
4326 struct lpfc_iocbq
*oldiocb
, struct lpfc_nodelist
*ndlp
)
4328 struct lpfc_hba
*phba
= vport
->phba
;
4330 IOCB_t
*icmd
, *oldcmd
;
4331 struct lpfc_iocbq
*elsiocb
;
4336 cmdsize
= sizeof(uint32_t) + sizeof(uint32_t)
4337 + (2 * sizeof(struct lpfc_name
));
4339 cmdsize
+= sizeof(RNID_TOP_DISC
);
4341 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
, ndlp
,
4342 ndlp
->nlp_DID
, ELS_CMD_ACC
);
4346 icmd
= &elsiocb
->iocb
;
4347 oldcmd
= &oldiocb
->iocb
;
4348 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
4349 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
4351 /* Xmit RNID ACC response tag <ulpIoTag> */
4352 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4353 "0132 Xmit RNID ACC response tag x%x xri x%x\n",
4354 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
);
4355 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
4356 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
4357 pcmd
+= sizeof(uint32_t);
4359 memset(pcmd
, 0, sizeof(RNID
));
4360 rn
= (RNID
*) (pcmd
);
4361 rn
->Format
= format
;
4362 rn
->CommonLen
= (2 * sizeof(struct lpfc_name
));
4363 memcpy(&rn
->portName
, &vport
->fc_portname
, sizeof(struct lpfc_name
));
4364 memcpy(&rn
->nodeName
, &vport
->fc_nodename
, sizeof(struct lpfc_name
));
4367 rn
->SpecificLen
= 0;
4369 case RNID_TOPOLOGY_DISC
:
4370 rn
->SpecificLen
= sizeof(RNID_TOP_DISC
);
4371 memcpy(&rn
->un
.topologyDisc
.portName
,
4372 &vport
->fc_portname
, sizeof(struct lpfc_name
));
4373 rn
->un
.topologyDisc
.unitType
= RNID_HBA
;
4374 rn
->un
.topologyDisc
.physPort
= 0;
4375 rn
->un
.topologyDisc
.attachedNodes
= 0;
4379 rn
->SpecificLen
= 0;
4383 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
4384 "Issue ACC RNID: did:x%x flg:x%x",
4385 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
4387 phba
->fc_stat
.elsXmitACC
++;
4388 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
4390 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
4391 if (rc
== IOCB_ERROR
) {
4392 lpfc_els_free_iocb(phba
, elsiocb
);
4399 * lpfc_els_clear_rrq - Clear the rq that this rrq describes.
4400 * @vport: pointer to a virtual N_Port data structure.
4401 * @iocb: pointer to the lpfc command iocb data structure.
4402 * @ndlp: pointer to a node-list data structure.
4407 lpfc_els_clear_rrq(struct lpfc_vport
*vport
,
4408 struct lpfc_iocbq
*iocb
, struct lpfc_nodelist
*ndlp
)
4410 struct lpfc_hba
*phba
= vport
->phba
;
4415 struct lpfc_node_rrq
*prrq
;
4418 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) iocb
->context2
)->virt
);
4419 pcmd
+= sizeof(uint32_t);
4420 rrq
= (struct RRQ
*)pcmd
;
4421 rrq
->rrq_exchg
= be32_to_cpu(rrq
->rrq_exchg
);
4422 rxid
= bf_get(rrq_rxid
, rrq
);
4424 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4425 "2883 Clear RRQ for SID:x%x OXID:x%x RXID:x%x"
4427 be32_to_cpu(bf_get(rrq_did
, rrq
)),
4428 bf_get(rrq_oxid
, rrq
),
4430 iocb
->iotag
, iocb
->iocb
.ulpContext
);
4432 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
4433 "Clear RRQ: did:x%x flg:x%x exchg:x%.08x",
4434 ndlp
->nlp_DID
, ndlp
->nlp_flag
, rrq
->rrq_exchg
);
4435 if (vport
->fc_myDID
== be32_to_cpu(bf_get(rrq_did
, rrq
)))
4436 xri
= bf_get(rrq_oxid
, rrq
);
4439 prrq
= lpfc_get_active_rrq(vport
, xri
, ndlp
->nlp_DID
);
4441 lpfc_clr_rrq_active(phba
, xri
, prrq
);
4446 * lpfc_els_rsp_echo_acc - Issue echo acc response
4447 * @vport: pointer to a virtual N_Port data structure.
4448 * @data: pointer to echo data to return in the accept.
4449 * @oldiocb: pointer to the original lpfc command iocb data structure.
4450 * @ndlp: pointer to a node-list data structure.
4453 * 0 - Successfully issued acc echo response
4454 * 1 - Failed to issue acc echo response
4457 lpfc_els_rsp_echo_acc(struct lpfc_vport
*vport
, uint8_t *data
,
4458 struct lpfc_iocbq
*oldiocb
, struct lpfc_nodelist
*ndlp
)
4460 struct lpfc_hba
*phba
= vport
->phba
;
4461 struct lpfc_iocbq
*elsiocb
;
4466 cmdsize
= oldiocb
->iocb
.unsli3
.rcvsli3
.acc_len
;
4468 /* The accumulated length can exceed the BPL_SIZE. For
4469 * now, use this as the limit
4471 if (cmdsize
> LPFC_BPL_SIZE
)
4472 cmdsize
= LPFC_BPL_SIZE
;
4473 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
, ndlp
,
4474 ndlp
->nlp_DID
, ELS_CMD_ACC
);
4478 elsiocb
->iocb
.ulpContext
= oldiocb
->iocb
.ulpContext
; /* Xri / rx_id */
4479 elsiocb
->iocb
.unsli3
.rcvsli3
.ox_id
= oldiocb
->iocb
.unsli3
.rcvsli3
.ox_id
;
4481 /* Xmit ECHO ACC response tag <ulpIoTag> */
4482 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4483 "2876 Xmit ECHO ACC response tag x%x xri x%x\n",
4484 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
);
4485 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
4486 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
4487 pcmd
+= sizeof(uint32_t);
4488 memcpy(pcmd
, data
, cmdsize
- sizeof(uint32_t));
4490 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
4491 "Issue ACC ECHO: did:x%x flg:x%x",
4492 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
4494 phba
->fc_stat
.elsXmitACC
++;
4495 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
4497 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
4498 if (rc
== IOCB_ERROR
) {
4499 lpfc_els_free_iocb(phba
, elsiocb
);
4506 * lpfc_els_disc_adisc - Issue remaining adisc iocbs to npr nodes of a vport
4507 * @vport: pointer to a host virtual N_Port data structure.
4509 * This routine issues Address Discover (ADISC) ELS commands to those
4510 * N_Ports which are in node port recovery state and ADISC has not been issued
4511 * for the @vport. Each time an ELS ADISC IOCB is issued by invoking the
4512 * lpfc_issue_els_adisc() routine, the per @vport number of discover count
4513 * (num_disc_nodes) shall be incremented. If the num_disc_nodes reaches a
4514 * pre-configured threshold (cfg_discovery_threads), the @vport fc_flag will
4515 * be marked with FC_NLP_MORE bit and the process of issuing remaining ADISC
4516 * IOCBs quit for later pick up. On the other hand, after walking through
4517 * all the ndlps with the @vport and there is none ADISC IOCB issued, the
4518 * @vport fc_flag shall be cleared with FC_NLP_MORE bit indicating there is
4519 * no more ADISC need to be sent.
4522 * The number of N_Ports with adisc issued.
4525 lpfc_els_disc_adisc(struct lpfc_vport
*vport
)
4527 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4528 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
4531 /* go thru NPR nodes and issue any remaining ELS ADISCs */
4532 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
, nlp_listp
) {
4533 if (!NLP_CHK_NODE_ACT(ndlp
))
4535 if (ndlp
->nlp_state
== NLP_STE_NPR_NODE
&&
4536 (ndlp
->nlp_flag
& NLP_NPR_2B_DISC
) != 0 &&
4537 (ndlp
->nlp_flag
& NLP_NPR_ADISC
) != 0) {
4538 spin_lock_irq(shost
->host_lock
);
4539 ndlp
->nlp_flag
&= ~NLP_NPR_ADISC
;
4540 spin_unlock_irq(shost
->host_lock
);
4541 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
4542 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_ADISC_ISSUE
);
4543 lpfc_issue_els_adisc(vport
, ndlp
, 0);
4545 vport
->num_disc_nodes
++;
4546 if (vport
->num_disc_nodes
>=
4547 vport
->cfg_discovery_threads
) {
4548 spin_lock_irq(shost
->host_lock
);
4549 vport
->fc_flag
|= FC_NLP_MORE
;
4550 spin_unlock_irq(shost
->host_lock
);
4555 if (sentadisc
== 0) {
4556 spin_lock_irq(shost
->host_lock
);
4557 vport
->fc_flag
&= ~FC_NLP_MORE
;
4558 spin_unlock_irq(shost
->host_lock
);
4564 * lpfc_els_disc_plogi - Issue plogi for all npr nodes of a vport before adisc
4565 * @vport: pointer to a host virtual N_Port data structure.
4567 * This routine issues Port Login (PLOGI) ELS commands to all the N_Ports
4568 * which are in node port recovery state, with a @vport. Each time an ELS
4569 * ADISC PLOGI IOCB is issued by invoking the lpfc_issue_els_plogi() routine,
4570 * the per @vport number of discover count (num_disc_nodes) shall be
4571 * incremented. If the num_disc_nodes reaches a pre-configured threshold
4572 * (cfg_discovery_threads), the @vport fc_flag will be marked with FC_NLP_MORE
4573 * bit set and quit the process of issuing remaining ADISC PLOGIN IOCBs for
4574 * later pick up. On the other hand, after walking through all the ndlps with
4575 * the @vport and there is none ADISC PLOGI IOCB issued, the @vport fc_flag
4576 * shall be cleared with the FC_NLP_MORE bit indicating there is no more ADISC
4577 * PLOGI need to be sent.
4580 * The number of N_Ports with plogi issued.
4583 lpfc_els_disc_plogi(struct lpfc_vport
*vport
)
4585 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4586 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
4589 /* go thru NPR nodes and issue any remaining ELS PLOGIs */
4590 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
, nlp_listp
) {
4591 if (!NLP_CHK_NODE_ACT(ndlp
))
4593 if (ndlp
->nlp_state
== NLP_STE_NPR_NODE
&&
4594 (ndlp
->nlp_flag
& NLP_NPR_2B_DISC
) != 0 &&
4595 (ndlp
->nlp_flag
& NLP_DELAY_TMO
) == 0 &&
4596 (ndlp
->nlp_flag
& NLP_NPR_ADISC
) == 0) {
4597 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
4598 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_PLOGI_ISSUE
);
4599 lpfc_issue_els_plogi(vport
, ndlp
->nlp_DID
, 0);
4601 vport
->num_disc_nodes
++;
4602 if (vport
->num_disc_nodes
>=
4603 vport
->cfg_discovery_threads
) {
4604 spin_lock_irq(shost
->host_lock
);
4605 vport
->fc_flag
|= FC_NLP_MORE
;
4606 spin_unlock_irq(shost
->host_lock
);
4612 lpfc_set_disctmo(vport
);
4615 spin_lock_irq(shost
->host_lock
);
4616 vport
->fc_flag
&= ~FC_NLP_MORE
;
4617 spin_unlock_irq(shost
->host_lock
);
4623 lpfc_rdp_res_link_service(struct fc_rdp_link_service_desc
*desc
,
4627 desc
->tag
= cpu_to_be32(RDP_LINK_SERVICE_DESC_TAG
);
4628 desc
->payload
.els_req
= word0
;
4629 desc
->length
= cpu_to_be32(sizeof(desc
->payload
));
4631 return sizeof(struct fc_rdp_link_service_desc
);
4635 lpfc_rdp_res_sfp_desc(struct fc_rdp_sfp_desc
*desc
,
4636 uint8_t *page_a0
, uint8_t *page_a2
)
4638 uint16_t wavelength
;
4639 uint16_t temperature
;
4645 struct sff_trasnceiver_codes_byte4
*trasn_code_byte4
;
4646 struct sff_trasnceiver_codes_byte5
*trasn_code_byte5
;
4648 desc
->tag
= cpu_to_be32(RDP_SFP_DESC_TAG
);
4650 trasn_code_byte4
= (struct sff_trasnceiver_codes_byte4
*)
4651 &page_a0
[SSF_TRANSCEIVER_CODE_B4
];
4652 trasn_code_byte5
= (struct sff_trasnceiver_codes_byte5
*)
4653 &page_a0
[SSF_TRANSCEIVER_CODE_B5
];
4655 if ((trasn_code_byte4
->fc_sw_laser
) ||
4656 (trasn_code_byte5
->fc_sw_laser_sl
) ||
4657 (trasn_code_byte5
->fc_sw_laser_sn
)) { /* check if its short WL */
4658 flag
|= (SFP_FLAG_PT_SWLASER
<< SFP_FLAG_PT_SHIFT
);
4659 } else if (trasn_code_byte4
->fc_lw_laser
) {
4660 wavelength
= (page_a0
[SSF_WAVELENGTH_B1
] << 8) |
4661 page_a0
[SSF_WAVELENGTH_B0
];
4662 if (wavelength
== SFP_WAVELENGTH_LC1310
)
4663 flag
|= SFP_FLAG_PT_LWLASER_LC1310
<< SFP_FLAG_PT_SHIFT
;
4664 if (wavelength
== SFP_WAVELENGTH_LL1550
)
4665 flag
|= SFP_FLAG_PT_LWLASER_LL1550
<< SFP_FLAG_PT_SHIFT
;
4667 /* check if its SFP+ */
4668 flag
|= ((page_a0
[SSF_IDENTIFIER
] == SFF_PG0_IDENT_SFP
) ?
4669 SFP_FLAG_CT_SFP_PLUS
: SFP_FLAG_CT_UNKNOWN
)
4670 << SFP_FLAG_CT_SHIFT
;
4672 /* check if its OPTICAL */
4673 flag
|= ((page_a0
[SSF_CONNECTOR
] == SFF_PG0_CONNECTOR_LC
) ?
4674 SFP_FLAG_IS_OPTICAL_PORT
: 0)
4675 << SFP_FLAG_IS_OPTICAL_SHIFT
;
4677 temperature
= (page_a2
[SFF_TEMPERATURE_B1
] << 8 |
4678 page_a2
[SFF_TEMPERATURE_B0
]);
4679 vcc
= (page_a2
[SFF_VCC_B1
] << 8 |
4680 page_a2
[SFF_VCC_B0
]);
4681 tx_power
= (page_a2
[SFF_TXPOWER_B1
] << 8 |
4682 page_a2
[SFF_TXPOWER_B0
]);
4683 tx_bias
= (page_a2
[SFF_TX_BIAS_CURRENT_B1
] << 8 |
4684 page_a2
[SFF_TX_BIAS_CURRENT_B0
]);
4685 rx_power
= (page_a2
[SFF_RXPOWER_B1
] << 8 |
4686 page_a2
[SFF_RXPOWER_B0
]);
4687 desc
->sfp_info
.temperature
= cpu_to_be16(temperature
);
4688 desc
->sfp_info
.rx_power
= cpu_to_be16(rx_power
);
4689 desc
->sfp_info
.tx_bias
= cpu_to_be16(tx_bias
);
4690 desc
->sfp_info
.tx_power
= cpu_to_be16(tx_power
);
4691 desc
->sfp_info
.vcc
= cpu_to_be16(vcc
);
4693 desc
->sfp_info
.flags
= cpu_to_be16(flag
);
4694 desc
->length
= cpu_to_be32(sizeof(desc
->sfp_info
));
4696 return sizeof(struct fc_rdp_sfp_desc
);
4700 lpfc_rdp_res_link_error(struct fc_rdp_link_error_status_desc
*desc
,
4705 desc
->tag
= cpu_to_be32(RDP_LINK_ERROR_STATUS_DESC_TAG
);
4707 type
= VN_PT_PHY_PF_PORT
<< VN_PT_PHY_SHIFT
;
4709 desc
->info
.port_type
= cpu_to_be32(type
);
4711 desc
->info
.link_status
.link_failure_cnt
=
4712 cpu_to_be32(stat
->linkFailureCnt
);
4713 desc
->info
.link_status
.loss_of_synch_cnt
=
4714 cpu_to_be32(stat
->lossSyncCnt
);
4715 desc
->info
.link_status
.loss_of_signal_cnt
=
4716 cpu_to_be32(stat
->lossSignalCnt
);
4717 desc
->info
.link_status
.primitive_seq_proto_err
=
4718 cpu_to_be32(stat
->primSeqErrCnt
);
4719 desc
->info
.link_status
.invalid_trans_word
=
4720 cpu_to_be32(stat
->invalidXmitWord
);
4721 desc
->info
.link_status
.invalid_crc_cnt
= cpu_to_be32(stat
->crcCnt
);
4723 desc
->length
= cpu_to_be32(sizeof(desc
->info
));
4725 return sizeof(struct fc_rdp_link_error_status_desc
);
4729 lpfc_rdp_res_bbc_desc(struct fc_rdp_bbc_desc
*desc
, READ_LNK_VAR
*stat
,
4730 struct lpfc_vport
*vport
)
4734 desc
->tag
= cpu_to_be32(RDP_BBC_DESC_TAG
);
4736 bbCredit
= vport
->fc_sparam
.cmn
.bbCreditLsb
|
4737 (vport
->fc_sparam
.cmn
.bbCreditMsb
<< 8);
4738 desc
->bbc_info
.port_bbc
= cpu_to_be32(bbCredit
);
4739 if (vport
->phba
->fc_topology
!= LPFC_TOPOLOGY_LOOP
) {
4740 bbCredit
= vport
->phba
->fc_fabparam
.cmn
.bbCreditLsb
|
4741 (vport
->phba
->fc_fabparam
.cmn
.bbCreditMsb
<< 8);
4742 desc
->bbc_info
.attached_port_bbc
= cpu_to_be32(bbCredit
);
4744 desc
->bbc_info
.attached_port_bbc
= 0;
4747 desc
->bbc_info
.rtt
= 0;
4748 desc
->length
= cpu_to_be32(sizeof(desc
->bbc_info
));
4750 return sizeof(struct fc_rdp_bbc_desc
);
4754 lpfc_rdp_res_oed_temp_desc(struct lpfc_hba
*phba
,
4755 struct fc_rdp_oed_sfp_desc
*desc
, uint8_t *page_a2
)
4759 desc
->tag
= cpu_to_be32(RDP_OED_DESC_TAG
);
4761 desc
->oed_info
.hi_alarm
= page_a2
[SSF_TEMP_HIGH_ALARM
];
4762 desc
->oed_info
.lo_alarm
= page_a2
[SSF_TEMP_LOW_ALARM
];
4763 desc
->oed_info
.hi_warning
= page_a2
[SSF_TEMP_HIGH_WARNING
];
4764 desc
->oed_info
.lo_warning
= page_a2
[SSF_TEMP_LOW_WARNING
];
4766 if (phba
->sfp_alarm
& LPFC_TRANSGRESSION_HIGH_TEMPERATURE
)
4767 flags
|= RDP_OET_HIGH_ALARM
;
4768 if (phba
->sfp_alarm
& LPFC_TRANSGRESSION_LOW_TEMPERATURE
)
4769 flags
|= RDP_OET_LOW_ALARM
;
4770 if (phba
->sfp_warning
& LPFC_TRANSGRESSION_HIGH_TEMPERATURE
)
4771 flags
|= RDP_OET_HIGH_WARNING
;
4772 if (phba
->sfp_warning
& LPFC_TRANSGRESSION_LOW_TEMPERATURE
)
4773 flags
|= RDP_OET_LOW_WARNING
;
4775 flags
|= ((0xf & RDP_OED_TEMPERATURE
) << RDP_OED_TYPE_SHIFT
);
4776 desc
->oed_info
.function_flags
= cpu_to_be32(flags
);
4777 desc
->length
= cpu_to_be32(sizeof(desc
->oed_info
));
4778 return sizeof(struct fc_rdp_oed_sfp_desc
);
4782 lpfc_rdp_res_oed_voltage_desc(struct lpfc_hba
*phba
,
4783 struct fc_rdp_oed_sfp_desc
*desc
,
4788 desc
->tag
= cpu_to_be32(RDP_OED_DESC_TAG
);
4790 desc
->oed_info
.hi_alarm
= page_a2
[SSF_VOLTAGE_HIGH_ALARM
];
4791 desc
->oed_info
.lo_alarm
= page_a2
[SSF_VOLTAGE_LOW_ALARM
];
4792 desc
->oed_info
.hi_warning
= page_a2
[SSF_VOLTAGE_HIGH_WARNING
];
4793 desc
->oed_info
.lo_warning
= page_a2
[SSF_VOLTAGE_LOW_WARNING
];
4795 if (phba
->sfp_alarm
& LPFC_TRANSGRESSION_HIGH_VOLTAGE
)
4796 flags
|= RDP_OET_HIGH_ALARM
;
4797 if (phba
->sfp_alarm
& LPFC_TRANSGRESSION_LOW_VOLTAGE
)
4798 flags
|= RDP_OET_LOW_ALARM
;
4799 if (phba
->sfp_warning
& LPFC_TRANSGRESSION_HIGH_VOLTAGE
)
4800 flags
|= RDP_OET_HIGH_WARNING
;
4801 if (phba
->sfp_warning
& LPFC_TRANSGRESSION_LOW_VOLTAGE
)
4802 flags
|= RDP_OET_LOW_WARNING
;
4804 flags
|= ((0xf & RDP_OED_VOLTAGE
) << RDP_OED_TYPE_SHIFT
);
4805 desc
->oed_info
.function_flags
= cpu_to_be32(flags
);
4806 desc
->length
= cpu_to_be32(sizeof(desc
->oed_info
));
4807 return sizeof(struct fc_rdp_oed_sfp_desc
);
4811 lpfc_rdp_res_oed_txbias_desc(struct lpfc_hba
*phba
,
4812 struct fc_rdp_oed_sfp_desc
*desc
,
4817 desc
->tag
= cpu_to_be32(RDP_OED_DESC_TAG
);
4819 desc
->oed_info
.hi_alarm
= page_a2
[SSF_BIAS_HIGH_ALARM
];
4820 desc
->oed_info
.lo_alarm
= page_a2
[SSF_BIAS_LOW_ALARM
];
4821 desc
->oed_info
.hi_warning
= page_a2
[SSF_BIAS_HIGH_WARNING
];
4822 desc
->oed_info
.lo_warning
= page_a2
[SSF_BIAS_LOW_WARNING
];
4824 if (phba
->sfp_alarm
& LPFC_TRANSGRESSION_HIGH_TXBIAS
)
4825 flags
|= RDP_OET_HIGH_ALARM
;
4826 if (phba
->sfp_alarm
& LPFC_TRANSGRESSION_LOW_TXBIAS
)
4827 flags
|= RDP_OET_LOW_ALARM
;
4828 if (phba
->sfp_warning
& LPFC_TRANSGRESSION_HIGH_TXBIAS
)
4829 flags
|= RDP_OET_HIGH_WARNING
;
4830 if (phba
->sfp_warning
& LPFC_TRANSGRESSION_LOW_TXBIAS
)
4831 flags
|= RDP_OET_LOW_WARNING
;
4833 flags
|= ((0xf & RDP_OED_TXBIAS
) << RDP_OED_TYPE_SHIFT
);
4834 desc
->oed_info
.function_flags
= cpu_to_be32(flags
);
4835 desc
->length
= cpu_to_be32(sizeof(desc
->oed_info
));
4836 return sizeof(struct fc_rdp_oed_sfp_desc
);
4840 lpfc_rdp_res_oed_txpower_desc(struct lpfc_hba
*phba
,
4841 struct fc_rdp_oed_sfp_desc
*desc
,
4846 desc
->tag
= cpu_to_be32(RDP_OED_DESC_TAG
);
4848 desc
->oed_info
.hi_alarm
= page_a2
[SSF_TXPOWER_HIGH_ALARM
];
4849 desc
->oed_info
.lo_alarm
= page_a2
[SSF_TXPOWER_LOW_ALARM
];
4850 desc
->oed_info
.hi_warning
= page_a2
[SSF_TXPOWER_HIGH_WARNING
];
4851 desc
->oed_info
.lo_warning
= page_a2
[SSF_TXPOWER_LOW_WARNING
];
4853 if (phba
->sfp_alarm
& LPFC_TRANSGRESSION_HIGH_TXPOWER
)
4854 flags
|= RDP_OET_HIGH_ALARM
;
4855 if (phba
->sfp_alarm
& LPFC_TRANSGRESSION_LOW_TXPOWER
)
4856 flags
|= RDP_OET_LOW_ALARM
;
4857 if (phba
->sfp_warning
& LPFC_TRANSGRESSION_HIGH_TXPOWER
)
4858 flags
|= RDP_OET_HIGH_WARNING
;
4859 if (phba
->sfp_warning
& LPFC_TRANSGRESSION_LOW_TXPOWER
)
4860 flags
|= RDP_OET_LOW_WARNING
;
4862 flags
|= ((0xf & RDP_OED_TXPOWER
) << RDP_OED_TYPE_SHIFT
);
4863 desc
->oed_info
.function_flags
= cpu_to_be32(flags
);
4864 desc
->length
= cpu_to_be32(sizeof(desc
->oed_info
));
4865 return sizeof(struct fc_rdp_oed_sfp_desc
);
4870 lpfc_rdp_res_oed_rxpower_desc(struct lpfc_hba
*phba
,
4871 struct fc_rdp_oed_sfp_desc
*desc
,
4876 desc
->tag
= cpu_to_be32(RDP_OED_DESC_TAG
);
4878 desc
->oed_info
.hi_alarm
= page_a2
[SSF_RXPOWER_HIGH_ALARM
];
4879 desc
->oed_info
.lo_alarm
= page_a2
[SSF_RXPOWER_LOW_ALARM
];
4880 desc
->oed_info
.hi_warning
= page_a2
[SSF_RXPOWER_HIGH_WARNING
];
4881 desc
->oed_info
.lo_warning
= page_a2
[SSF_RXPOWER_LOW_WARNING
];
4883 if (phba
->sfp_alarm
& LPFC_TRANSGRESSION_HIGH_RXPOWER
)
4884 flags
|= RDP_OET_HIGH_ALARM
;
4885 if (phba
->sfp_alarm
& LPFC_TRANSGRESSION_LOW_RXPOWER
)
4886 flags
|= RDP_OET_LOW_ALARM
;
4887 if (phba
->sfp_warning
& LPFC_TRANSGRESSION_HIGH_RXPOWER
)
4888 flags
|= RDP_OET_HIGH_WARNING
;
4889 if (phba
->sfp_warning
& LPFC_TRANSGRESSION_LOW_RXPOWER
)
4890 flags
|= RDP_OET_LOW_WARNING
;
4892 flags
|= ((0xf & RDP_OED_RXPOWER
) << RDP_OED_TYPE_SHIFT
);
4893 desc
->oed_info
.function_flags
= cpu_to_be32(flags
);
4894 desc
->length
= cpu_to_be32(sizeof(desc
->oed_info
));
4895 return sizeof(struct fc_rdp_oed_sfp_desc
);
4899 lpfc_rdp_res_opd_desc(struct fc_rdp_opd_sfp_desc
*desc
,
4900 uint8_t *page_a0
, struct lpfc_vport
*vport
)
4902 desc
->tag
= cpu_to_be32(RDP_OPD_DESC_TAG
);
4903 memcpy(desc
->opd_info
.vendor_name
, &page_a0
[SSF_VENDOR_NAME
], 16);
4904 memcpy(desc
->opd_info
.model_number
, &page_a0
[SSF_VENDOR_PN
], 16);
4905 memcpy(desc
->opd_info
.serial_number
, &page_a0
[SSF_VENDOR_SN
], 16);
4906 memcpy(desc
->opd_info
.revision
, &page_a0
[SSF_VENDOR_REV
], 2);
4907 memcpy(desc
->opd_info
.date
, &page_a0
[SSF_DATE_CODE
], 8);
4908 desc
->length
= cpu_to_be32(sizeof(desc
->opd_info
));
4909 return sizeof(struct fc_rdp_opd_sfp_desc
);
4913 lpfc_rdp_res_fec_desc(struct fc_fec_rdp_desc
*desc
, READ_LNK_VAR
*stat
)
4915 if (bf_get(lpfc_read_link_stat_gec2
, stat
) == 0)
4917 desc
->tag
= cpu_to_be32(RDP_FEC_DESC_TAG
);
4919 desc
->info
.CorrectedBlocks
=
4920 cpu_to_be32(stat
->fecCorrBlkCount
);
4921 desc
->info
.UncorrectableBlocks
=
4922 cpu_to_be32(stat
->fecUncorrBlkCount
);
4924 desc
->length
= cpu_to_be32(sizeof(desc
->info
));
4926 return sizeof(struct fc_fec_rdp_desc
);
4930 lpfc_rdp_res_speed(struct fc_rdp_port_speed_desc
*desc
, struct lpfc_hba
*phba
)
4932 uint16_t rdp_cap
= 0;
4935 desc
->tag
= cpu_to_be32(RDP_PORT_SPEED_DESC_TAG
);
4937 switch (phba
->fc_linkspeed
) {
4938 case LPFC_LINK_SPEED_1GHZ
:
4939 rdp_speed
= RDP_PS_1GB
;
4941 case LPFC_LINK_SPEED_2GHZ
:
4942 rdp_speed
= RDP_PS_2GB
;
4944 case LPFC_LINK_SPEED_4GHZ
:
4945 rdp_speed
= RDP_PS_4GB
;
4947 case LPFC_LINK_SPEED_8GHZ
:
4948 rdp_speed
= RDP_PS_8GB
;
4950 case LPFC_LINK_SPEED_10GHZ
:
4951 rdp_speed
= RDP_PS_10GB
;
4953 case LPFC_LINK_SPEED_16GHZ
:
4954 rdp_speed
= RDP_PS_16GB
;
4956 case LPFC_LINK_SPEED_32GHZ
:
4957 rdp_speed
= RDP_PS_32GB
;
4960 rdp_speed
= RDP_PS_UNKNOWN
;
4964 desc
->info
.port_speed
.speed
= cpu_to_be16(rdp_speed
);
4966 if (phba
->lmt
& LMT_32Gb
)
4967 rdp_cap
|= RDP_PS_32GB
;
4968 if (phba
->lmt
& LMT_16Gb
)
4969 rdp_cap
|= RDP_PS_16GB
;
4970 if (phba
->lmt
& LMT_10Gb
)
4971 rdp_cap
|= RDP_PS_10GB
;
4972 if (phba
->lmt
& LMT_8Gb
)
4973 rdp_cap
|= RDP_PS_8GB
;
4974 if (phba
->lmt
& LMT_4Gb
)
4975 rdp_cap
|= RDP_PS_4GB
;
4976 if (phba
->lmt
& LMT_2Gb
)
4977 rdp_cap
|= RDP_PS_2GB
;
4978 if (phba
->lmt
& LMT_1Gb
)
4979 rdp_cap
|= RDP_PS_1GB
;
4982 rdp_cap
= RDP_CAP_UNKNOWN
;
4983 if (phba
->cfg_link_speed
!= LPFC_USER_LINK_SPEED_AUTO
)
4984 rdp_cap
|= RDP_CAP_USER_CONFIGURED
;
4986 desc
->info
.port_speed
.capabilities
= cpu_to_be16(rdp_cap
);
4987 desc
->length
= cpu_to_be32(sizeof(desc
->info
));
4988 return sizeof(struct fc_rdp_port_speed_desc
);
4992 lpfc_rdp_res_diag_port_names(struct fc_rdp_port_name_desc
*desc
,
4993 struct lpfc_hba
*phba
)
4996 desc
->tag
= cpu_to_be32(RDP_PORT_NAMES_DESC_TAG
);
4998 memcpy(desc
->port_names
.wwnn
, phba
->wwnn
,
4999 sizeof(desc
->port_names
.wwnn
));
5001 memcpy(desc
->port_names
.wwpn
, &phba
->wwpn
,
5002 sizeof(desc
->port_names
.wwpn
));
5004 desc
->length
= cpu_to_be32(sizeof(desc
->port_names
));
5005 return sizeof(struct fc_rdp_port_name_desc
);
5009 lpfc_rdp_res_attach_port_names(struct fc_rdp_port_name_desc
*desc
,
5010 struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
5013 desc
->tag
= cpu_to_be32(RDP_PORT_NAMES_DESC_TAG
);
5014 if (vport
->fc_flag
& FC_FABRIC
) {
5015 memcpy(desc
->port_names
.wwnn
, &vport
->fabric_nodename
,
5016 sizeof(desc
->port_names
.wwnn
));
5018 memcpy(desc
->port_names
.wwpn
, &vport
->fabric_portname
,
5019 sizeof(desc
->port_names
.wwpn
));
5020 } else { /* Point to Point */
5021 memcpy(desc
->port_names
.wwnn
, &ndlp
->nlp_nodename
,
5022 sizeof(desc
->port_names
.wwnn
));
5024 memcpy(desc
->port_names
.wwnn
, &ndlp
->nlp_portname
,
5025 sizeof(desc
->port_names
.wwpn
));
5028 desc
->length
= cpu_to_be32(sizeof(desc
->port_names
));
5029 return sizeof(struct fc_rdp_port_name_desc
);
5033 lpfc_els_rdp_cmpl(struct lpfc_hba
*phba
, struct lpfc_rdp_context
*rdp_context
,
5036 struct lpfc_nodelist
*ndlp
= rdp_context
->ndlp
;
5037 struct lpfc_vport
*vport
= ndlp
->vport
;
5038 struct lpfc_iocbq
*elsiocb
;
5039 struct ulp_bde64
*bpl
;
5042 struct ls_rjt
*stat
;
5043 struct fc_rdp_res_frame
*rdp_res
;
5044 uint32_t cmdsize
, len
;
5048 if (status
!= SUCCESS
)
5051 /* This will change once we know the true size of the RDP payload */
5052 cmdsize
= sizeof(struct fc_rdp_res_frame
);
5054 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
,
5055 lpfc_max_els_tries
, rdp_context
->ndlp
,
5056 rdp_context
->ndlp
->nlp_DID
, ELS_CMD_ACC
);
5059 goto free_rdp_context
;
5061 icmd
= &elsiocb
->iocb
;
5062 icmd
->ulpContext
= rdp_context
->rx_id
;
5063 icmd
->unsli3
.rcvsli3
.ox_id
= rdp_context
->ox_id
;
5065 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
5066 "2171 Xmit RDP response tag x%x xri x%x, "
5067 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x",
5068 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
5069 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
5071 rdp_res
= (struct fc_rdp_res_frame
*)
5072 (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
5073 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
5074 memset(pcmd
, 0, sizeof(struct fc_rdp_res_frame
));
5075 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
5077 /* Update Alarm and Warning */
5078 flag_ptr
= (uint16_t *)(rdp_context
->page_a2
+ SSF_ALARM_FLAGS
);
5079 phba
->sfp_alarm
|= *flag_ptr
;
5080 flag_ptr
= (uint16_t *)(rdp_context
->page_a2
+ SSF_WARNING_FLAGS
);
5081 phba
->sfp_warning
|= *flag_ptr
;
5083 /* For RDP payload */
5085 len
+= lpfc_rdp_res_link_service((struct fc_rdp_link_service_desc
*)
5086 (len
+ pcmd
), ELS_CMD_RDP
);
5088 len
+= lpfc_rdp_res_sfp_desc((struct fc_rdp_sfp_desc
*)(len
+ pcmd
),
5089 rdp_context
->page_a0
, rdp_context
->page_a2
);
5090 len
+= lpfc_rdp_res_speed((struct fc_rdp_port_speed_desc
*)(len
+ pcmd
),
5092 len
+= lpfc_rdp_res_link_error((struct fc_rdp_link_error_status_desc
*)
5093 (len
+ pcmd
), &rdp_context
->link_stat
);
5094 len
+= lpfc_rdp_res_diag_port_names((struct fc_rdp_port_name_desc
*)
5095 (len
+ pcmd
), phba
);
5096 len
+= lpfc_rdp_res_attach_port_names((struct fc_rdp_port_name_desc
*)
5097 (len
+ pcmd
), vport
, ndlp
);
5098 len
+= lpfc_rdp_res_fec_desc((struct fc_fec_rdp_desc
*)(len
+ pcmd
),
5099 &rdp_context
->link_stat
);
5100 /* Check if nport is logged, BZ190632 */
5101 if (!(ndlp
->nlp_flag
& NLP_RPI_REGISTERED
))
5102 goto lpfc_skip_descriptor
;
5104 len
+= lpfc_rdp_res_bbc_desc((struct fc_rdp_bbc_desc
*)(len
+ pcmd
),
5105 &rdp_context
->link_stat
, vport
);
5106 len
+= lpfc_rdp_res_oed_temp_desc(phba
,
5107 (struct fc_rdp_oed_sfp_desc
*)(len
+ pcmd
),
5108 rdp_context
->page_a2
);
5109 len
+= lpfc_rdp_res_oed_voltage_desc(phba
,
5110 (struct fc_rdp_oed_sfp_desc
*)(len
+ pcmd
),
5111 rdp_context
->page_a2
);
5112 len
+= lpfc_rdp_res_oed_txbias_desc(phba
,
5113 (struct fc_rdp_oed_sfp_desc
*)(len
+ pcmd
),
5114 rdp_context
->page_a2
);
5115 len
+= lpfc_rdp_res_oed_txpower_desc(phba
,
5116 (struct fc_rdp_oed_sfp_desc
*)(len
+ pcmd
),
5117 rdp_context
->page_a2
);
5118 len
+= lpfc_rdp_res_oed_rxpower_desc(phba
,
5119 (struct fc_rdp_oed_sfp_desc
*)(len
+ pcmd
),
5120 rdp_context
->page_a2
);
5121 len
+= lpfc_rdp_res_opd_desc((struct fc_rdp_opd_sfp_desc
*)(len
+ pcmd
),
5122 rdp_context
->page_a0
, vport
);
5124 lpfc_skip_descriptor
:
5125 rdp_res
->length
= cpu_to_be32(len
- 8);
5126 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
5128 /* Now that we know the true size of the payload, update the BPL */
5129 bpl
= (struct ulp_bde64
*)
5130 (((struct lpfc_dmabuf
*)(elsiocb
->context3
))->virt
);
5131 bpl
->tus
.f
.bdeSize
= len
;
5132 bpl
->tus
.f
.bdeFlags
= 0;
5133 bpl
->tus
.w
= le32_to_cpu(bpl
->tus
.w
);
5135 phba
->fc_stat
.elsXmitACC
++;
5136 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
5137 if (rc
== IOCB_ERROR
)
5138 lpfc_els_free_iocb(phba
, elsiocb
);
5144 cmdsize
= 2 * sizeof(uint32_t);
5145 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, lpfc_max_els_tries
,
5146 ndlp
, ndlp
->nlp_DID
, ELS_CMD_LS_RJT
);
5149 goto free_rdp_context
;
5151 icmd
= &elsiocb
->iocb
;
5152 icmd
->ulpContext
= rdp_context
->rx_id
;
5153 icmd
->unsli3
.rcvsli3
.ox_id
= rdp_context
->ox_id
;
5154 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
5156 *((uint32_t *) (pcmd
)) = ELS_CMD_LS_RJT
;
5157 stat
= (struct ls_rjt
*)(pcmd
+ sizeof(uint32_t));
5158 stat
->un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
5160 phba
->fc_stat
.elsXmitLSRJT
++;
5161 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
5162 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
5164 if (rc
== IOCB_ERROR
)
5165 lpfc_els_free_iocb(phba
, elsiocb
);
5171 lpfc_get_rdp_info(struct lpfc_hba
*phba
, struct lpfc_rdp_context
*rdp_context
)
5173 LPFC_MBOXQ_t
*mbox
= NULL
;
5176 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
5178 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
| LOG_ELS
,
5179 "7105 failed to allocate mailbox memory");
5183 if (lpfc_sli4_dump_page_a0(phba
, mbox
))
5184 goto prep_mbox_fail
;
5185 mbox
->vport
= rdp_context
->ndlp
->vport
;
5186 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_rdp_page_a0
;
5187 mbox
->context2
= (struct lpfc_rdp_context
*) rdp_context
;
5188 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
5189 if (rc
== MBX_NOT_FINISHED
)
5190 goto issue_mbox_fail
;
5196 mempool_free(mbox
, phba
->mbox_mem_pool
);
5201 * lpfc_els_rcv_rdp - Process an unsolicited RDP ELS.
5202 * @vport: pointer to a host virtual N_Port data structure.
5203 * @cmdiocb: pointer to lpfc command iocb data structure.
5204 * @ndlp: pointer to a node-list data structure.
5206 * This routine processes an unsolicited RDP(Read Diagnostic Parameters)
5207 * IOCB. First, the payload of the unsolicited RDP is checked.
5208 * Then it will (1) send MBX_DUMP_MEMORY, Embedded DMP_LMSD sub command TYPE-3
5209 * for Page A0, (2) send MBX_DUMP_MEMORY, DMP_LMSD for Page A2,
5210 * (3) send MBX_READ_LNK_STAT to get link stat, (4) Call lpfc_els_rdp_cmpl
5211 * gather all data and send RDP response.
5214 * 0 - Sent the acc response
5215 * 1 - Sent the reject response.
5218 lpfc_els_rcv_rdp(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5219 struct lpfc_nodelist
*ndlp
)
5221 struct lpfc_hba
*phba
= vport
->phba
;
5222 struct lpfc_dmabuf
*pcmd
;
5223 uint8_t rjt_err
, rjt_expl
= LSEXP_NOTHING_MORE
;
5224 struct fc_rdp_req_frame
*rdp_req
;
5225 struct lpfc_rdp_context
*rdp_context
;
5229 if (phba
->sli_rev
< LPFC_SLI_REV4
||
5230 (bf_get(lpfc_sli_intf_if_type
,
5231 &phba
->sli4_hba
.sli_intf
) !=
5232 LPFC_SLI_INTF_IF_TYPE_2
)) {
5233 rjt_err
= LSRJT_UNABLE_TPC
;
5234 rjt_expl
= LSEXP_REQ_UNSUPPORTED
;
5238 if (phba
->sli_rev
< LPFC_SLI_REV4
|| (phba
->hba_flag
& HBA_FCOE_MODE
)) {
5239 rjt_err
= LSRJT_UNABLE_TPC
;
5240 rjt_expl
= LSEXP_REQ_UNSUPPORTED
;
5244 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
5245 rdp_req
= (struct fc_rdp_req_frame
*) pcmd
->virt
;
5248 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
5249 "2422 ELS RDP Request "
5250 "dec len %d tag x%x port_id %d len %d\n",
5251 be32_to_cpu(rdp_req
->rdp_des_length
),
5252 be32_to_cpu(rdp_req
->nport_id_desc
.tag
),
5253 be32_to_cpu(rdp_req
->nport_id_desc
.nport_id
),
5254 be32_to_cpu(rdp_req
->nport_id_desc
.length
));
5256 if (!(ndlp
->nlp_flag
& NLP_RPI_REGISTERED
) &&
5257 !phba
->cfg_enable_SmartSAN
) {
5258 rjt_err
= LSRJT_UNABLE_TPC
;
5259 rjt_expl
= LSEXP_PORT_LOGIN_REQ
;
5262 if (sizeof(struct fc_rdp_nport_desc
) !=
5263 be32_to_cpu(rdp_req
->rdp_des_length
))
5265 if (RDP_N_PORT_DESC_TAG
!= be32_to_cpu(rdp_req
->nport_id_desc
.tag
))
5267 if (RDP_NPORT_ID_SIZE
!=
5268 be32_to_cpu(rdp_req
->nport_id_desc
.length
))
5270 rdp_context
= kzalloc(sizeof(struct lpfc_rdp_context
), GFP_KERNEL
);
5272 rjt_err
= LSRJT_UNABLE_TPC
;
5276 cmd
= &cmdiocb
->iocb
;
5277 rdp_context
->ndlp
= lpfc_nlp_get(ndlp
);
5278 rdp_context
->ox_id
= cmd
->unsli3
.rcvsli3
.ox_id
;
5279 rdp_context
->rx_id
= cmd
->ulpContext
;
5280 rdp_context
->cmpl
= lpfc_els_rdp_cmpl
;
5281 if (lpfc_get_rdp_info(phba
, rdp_context
)) {
5282 lpfc_printf_vlog(ndlp
->vport
, KERN_WARNING
, LOG_ELS
,
5283 "2423 Unable to send mailbox");
5285 rjt_err
= LSRJT_UNABLE_TPC
;
5293 rjt_err
= LSRJT_LOGICAL_ERR
;
5296 memset(&stat
, 0, sizeof(stat
));
5297 stat
.un
.b
.lsRjtRsnCode
= rjt_err
;
5298 stat
.un
.b
.lsRjtRsnCodeExp
= rjt_expl
;
5299 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
, NULL
);
5305 lpfc_els_lcb_rsp(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
5310 struct lpfc_iocbq
*elsiocb
;
5311 struct lpfc_nodelist
*ndlp
;
5312 struct ls_rjt
*stat
;
5313 union lpfc_sli4_cfg_shdr
*shdr
;
5314 struct lpfc_lcb_context
*lcb_context
;
5315 struct fc_lcb_res_frame
*lcb_res
;
5316 uint32_t cmdsize
, shdr_status
, shdr_add_status
;
5320 lcb_context
= (struct lpfc_lcb_context
*)pmb
->context1
;
5321 ndlp
= lcb_context
->ndlp
;
5322 pmb
->context1
= NULL
;
5323 pmb
->context2
= NULL
;
5325 shdr
= (union lpfc_sli4_cfg_shdr
*)
5326 &pmb
->u
.mqe
.un
.beacon_config
.header
.cfg_shdr
;
5327 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
5328 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
5330 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
,
5331 "0194 SET_BEACON_CONFIG mailbox "
5332 "completed with status x%x add_status x%x,"
5333 " mbx status x%x\n",
5334 shdr_status
, shdr_add_status
, mb
->mbxStatus
);
5336 if (mb
->mbxStatus
&& !(shdr_status
&&
5337 shdr_add_status
== ADD_STATUS_OPERATION_ALREADY_ACTIVE
)) {
5338 mempool_free(pmb
, phba
->mbox_mem_pool
);
5342 mempool_free(pmb
, phba
->mbox_mem_pool
);
5343 cmdsize
= sizeof(struct fc_lcb_res_frame
);
5344 elsiocb
= lpfc_prep_els_iocb(phba
->pport
, 0, cmdsize
,
5345 lpfc_max_els_tries
, ndlp
,
5346 ndlp
->nlp_DID
, ELS_CMD_ACC
);
5348 /* Decrement the ndlp reference count from previous mbox command */
5352 goto free_lcb_context
;
5354 lcb_res
= (struct fc_lcb_res_frame
*)
5355 (((struct lpfc_dmabuf
*)elsiocb
->context2
)->virt
);
5357 icmd
= &elsiocb
->iocb
;
5358 icmd
->ulpContext
= lcb_context
->rx_id
;
5359 icmd
->unsli3
.rcvsli3
.ox_id
= lcb_context
->ox_id
;
5361 pcmd
= (uint8_t *)(((struct lpfc_dmabuf
*)elsiocb
->context2
)->virt
);
5362 *((uint32_t *)(pcmd
)) = ELS_CMD_ACC
;
5363 lcb_res
->lcb_sub_command
= lcb_context
->sub_command
;
5364 lcb_res
->lcb_type
= lcb_context
->type
;
5365 lcb_res
->lcb_frequency
= lcb_context
->frequency
;
5366 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
5367 phba
->fc_stat
.elsXmitACC
++;
5368 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
5369 if (rc
== IOCB_ERROR
)
5370 lpfc_els_free_iocb(phba
, elsiocb
);
5376 cmdsize
= sizeof(struct fc_lcb_res_frame
);
5377 elsiocb
= lpfc_prep_els_iocb(phba
->pport
, 0, cmdsize
,
5378 lpfc_max_els_tries
, ndlp
,
5379 ndlp
->nlp_DID
, ELS_CMD_LS_RJT
);
5382 goto free_lcb_context
;
5384 icmd
= &elsiocb
->iocb
;
5385 icmd
->ulpContext
= lcb_context
->rx_id
;
5386 icmd
->unsli3
.rcvsli3
.ox_id
= lcb_context
->ox_id
;
5387 pcmd
= (uint8_t *)(((struct lpfc_dmabuf
*)elsiocb
->context2
)->virt
);
5389 *((uint32_t *)(pcmd
)) = ELS_CMD_LS_RJT
;
5390 stat
= (struct ls_rjt
*)(pcmd
+ sizeof(uint32_t));
5391 stat
->un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
5393 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
5394 phba
->fc_stat
.elsXmitLSRJT
++;
5395 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
5396 if (rc
== IOCB_ERROR
)
5397 lpfc_els_free_iocb(phba
, elsiocb
);
5403 lpfc_sli4_set_beacon(struct lpfc_vport
*vport
,
5404 struct lpfc_lcb_context
*lcb_context
,
5405 uint32_t beacon_state
)
5407 struct lpfc_hba
*phba
= vport
->phba
;
5408 LPFC_MBOXQ_t
*mbox
= NULL
;
5412 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
5416 len
= sizeof(struct lpfc_mbx_set_beacon_config
) -
5417 sizeof(struct lpfc_sli4_cfg_mhdr
);
5418 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
5419 LPFC_MBOX_OPCODE_SET_BEACON_CONFIG
, len
,
5420 LPFC_SLI4_MBX_EMBED
);
5421 mbox
->context1
= (void *)lcb_context
;
5422 mbox
->vport
= phba
->pport
;
5423 mbox
->mbox_cmpl
= lpfc_els_lcb_rsp
;
5424 bf_set(lpfc_mbx_set_beacon_port_num
, &mbox
->u
.mqe
.un
.beacon_config
,
5425 phba
->sli4_hba
.physical_port
);
5426 bf_set(lpfc_mbx_set_beacon_state
, &mbox
->u
.mqe
.un
.beacon_config
,
5428 bf_set(lpfc_mbx_set_beacon_port_type
, &mbox
->u
.mqe
.un
.beacon_config
, 1);
5429 bf_set(lpfc_mbx_set_beacon_duration
, &mbox
->u
.mqe
.un
.beacon_config
, 0);
5430 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
5431 if (rc
== MBX_NOT_FINISHED
) {
5432 mempool_free(mbox
, phba
->mbox_mem_pool
);
5441 * lpfc_els_rcv_lcb - Process an unsolicited LCB
5442 * @vport: pointer to a host virtual N_Port data structure.
5443 * @cmdiocb: pointer to lpfc command iocb data structure.
5444 * @ndlp: pointer to a node-list data structure.
5446 * This routine processes an unsolicited LCB(LINK CABLE BEACON) IOCB.
5447 * First, the payload of the unsolicited LCB is checked.
5448 * Then based on Subcommand beacon will either turn on or off.
5451 * 0 - Sent the acc response
5452 * 1 - Sent the reject response.
5455 lpfc_els_rcv_lcb(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5456 struct lpfc_nodelist
*ndlp
)
5458 struct lpfc_hba
*phba
= vport
->phba
;
5459 struct lpfc_dmabuf
*pcmd
;
5461 struct fc_lcb_request_frame
*beacon
;
5462 struct lpfc_lcb_context
*lcb_context
;
5463 uint8_t state
, rjt_err
;
5466 pcmd
= (struct lpfc_dmabuf
*)cmdiocb
->context2
;
5467 lp
= (uint8_t *)pcmd
->virt
;
5468 beacon
= (struct fc_lcb_request_frame
*)pcmd
->virt
;
5470 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
5471 "0192 ELS LCB Data x%x x%x x%x x%x sub x%x "
5472 "type x%x frequency %x duration x%x\n",
5473 lp
[0], lp
[1], lp
[2],
5474 beacon
->lcb_command
,
5475 beacon
->lcb_sub_command
,
5477 beacon
->lcb_frequency
,
5478 be16_to_cpu(beacon
->lcb_duration
));
5480 if (phba
->sli_rev
< LPFC_SLI_REV4
||
5481 (bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
) !=
5482 LPFC_SLI_INTF_IF_TYPE_2
)) {
5483 rjt_err
= LSRJT_CMD_UNSUPPORTED
;
5487 if (phba
->hba_flag
& HBA_FCOE_MODE
) {
5488 rjt_err
= LSRJT_CMD_UNSUPPORTED
;
5491 if (beacon
->lcb_frequency
== 0) {
5492 rjt_err
= LSRJT_CMD_UNSUPPORTED
;
5495 if ((beacon
->lcb_type
!= LPFC_LCB_GREEN
) &&
5496 (beacon
->lcb_type
!= LPFC_LCB_AMBER
)) {
5497 rjt_err
= LSRJT_CMD_UNSUPPORTED
;
5500 if ((beacon
->lcb_sub_command
!= LPFC_LCB_ON
) &&
5501 (beacon
->lcb_sub_command
!= LPFC_LCB_OFF
)) {
5502 rjt_err
= LSRJT_CMD_UNSUPPORTED
;
5505 if ((beacon
->lcb_sub_command
== LPFC_LCB_ON
) &&
5506 (beacon
->lcb_type
!= LPFC_LCB_GREEN
) &&
5507 (beacon
->lcb_type
!= LPFC_LCB_AMBER
)) {
5508 rjt_err
= LSRJT_CMD_UNSUPPORTED
;
5511 if (be16_to_cpu(beacon
->lcb_duration
) != 0) {
5512 rjt_err
= LSRJT_CMD_UNSUPPORTED
;
5516 lcb_context
= kmalloc(sizeof(*lcb_context
), GFP_KERNEL
);
5518 rjt_err
= LSRJT_UNABLE_TPC
;
5522 state
= (beacon
->lcb_sub_command
== LPFC_LCB_ON
) ? 1 : 0;
5523 lcb_context
->sub_command
= beacon
->lcb_sub_command
;
5524 lcb_context
->type
= beacon
->lcb_type
;
5525 lcb_context
->frequency
= beacon
->lcb_frequency
;
5526 lcb_context
->ox_id
= cmdiocb
->iocb
.unsli3
.rcvsli3
.ox_id
;
5527 lcb_context
->rx_id
= cmdiocb
->iocb
.ulpContext
;
5528 lcb_context
->ndlp
= lpfc_nlp_get(ndlp
);
5529 if (lpfc_sli4_set_beacon(vport
, lcb_context
, state
)) {
5530 lpfc_printf_vlog(ndlp
->vport
, KERN_ERR
,
5531 LOG_ELS
, "0193 failed to send mail box");
5534 rjt_err
= LSRJT_UNABLE_TPC
;
5539 memset(&stat
, 0, sizeof(stat
));
5540 stat
.un
.b
.lsRjtRsnCode
= rjt_err
;
5541 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
, NULL
);
5547 * lpfc_els_flush_rscn - Clean up any rscn activities with a vport
5548 * @vport: pointer to a host virtual N_Port data structure.
5550 * This routine cleans up any Registration State Change Notification
5551 * (RSCN) activity with a @vport. Note that the fc_rscn_flush flag of the
5552 * @vport together with the host_lock is used to prevent multiple thread
5553 * trying to access the RSCN array on a same @vport at the same time.
5556 lpfc_els_flush_rscn(struct lpfc_vport
*vport
)
5558 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
5559 struct lpfc_hba
*phba
= vport
->phba
;
5562 spin_lock_irq(shost
->host_lock
);
5563 if (vport
->fc_rscn_flush
) {
5564 /* Another thread is walking fc_rscn_id_list on this vport */
5565 spin_unlock_irq(shost
->host_lock
);
5568 /* Indicate we are walking lpfc_els_flush_rscn on this vport */
5569 vport
->fc_rscn_flush
= 1;
5570 spin_unlock_irq(shost
->host_lock
);
5572 for (i
= 0; i
< vport
->fc_rscn_id_cnt
; i
++) {
5573 lpfc_in_buf_free(phba
, vport
->fc_rscn_id_list
[i
]);
5574 vport
->fc_rscn_id_list
[i
] = NULL
;
5576 spin_lock_irq(shost
->host_lock
);
5577 vport
->fc_rscn_id_cnt
= 0;
5578 vport
->fc_flag
&= ~(FC_RSCN_MODE
| FC_RSCN_DISCOVERY
);
5579 spin_unlock_irq(shost
->host_lock
);
5580 lpfc_can_disctmo(vport
);
5581 /* Indicate we are done walking this fc_rscn_id_list */
5582 vport
->fc_rscn_flush
= 0;
5586 * lpfc_rscn_payload_check - Check whether there is a pending rscn to a did
5587 * @vport: pointer to a host virtual N_Port data structure.
5588 * @did: remote destination port identifier.
5590 * This routine checks whether there is any pending Registration State
5591 * Configuration Notification (RSCN) to a @did on @vport.
5594 * None zero - The @did matched with a pending rscn
5595 * 0 - not able to match @did with a pending rscn
5598 lpfc_rscn_payload_check(struct lpfc_vport
*vport
, uint32_t did
)
5603 uint32_t payload_len
, i
;
5604 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
5606 ns_did
.un
.word
= did
;
5608 /* Never match fabric nodes for RSCNs */
5609 if ((did
& Fabric_DID_MASK
) == Fabric_DID_MASK
)
5612 /* If we are doing a FULL RSCN rediscovery, match everything */
5613 if (vport
->fc_flag
& FC_RSCN_DISCOVERY
)
5616 spin_lock_irq(shost
->host_lock
);
5617 if (vport
->fc_rscn_flush
) {
5618 /* Another thread is walking fc_rscn_id_list on this vport */
5619 spin_unlock_irq(shost
->host_lock
);
5622 /* Indicate we are walking fc_rscn_id_list on this vport */
5623 vport
->fc_rscn_flush
= 1;
5624 spin_unlock_irq(shost
->host_lock
);
5625 for (i
= 0; i
< vport
->fc_rscn_id_cnt
; i
++) {
5626 lp
= vport
->fc_rscn_id_list
[i
]->virt
;
5627 payload_len
= be32_to_cpu(*lp
++ & ~ELS_CMD_MASK
);
5628 payload_len
-= sizeof(uint32_t); /* take off word 0 */
5629 while (payload_len
) {
5630 rscn_did
.un
.word
= be32_to_cpu(*lp
++);
5631 payload_len
-= sizeof(uint32_t);
5632 switch (rscn_did
.un
.b
.resv
& RSCN_ADDRESS_FORMAT_MASK
) {
5633 case RSCN_ADDRESS_FORMAT_PORT
:
5634 if ((ns_did
.un
.b
.domain
== rscn_did
.un
.b
.domain
)
5635 && (ns_did
.un
.b
.area
== rscn_did
.un
.b
.area
)
5636 && (ns_did
.un
.b
.id
== rscn_did
.un
.b
.id
))
5637 goto return_did_out
;
5639 case RSCN_ADDRESS_FORMAT_AREA
:
5640 if ((ns_did
.un
.b
.domain
== rscn_did
.un
.b
.domain
)
5641 && (ns_did
.un
.b
.area
== rscn_did
.un
.b
.area
))
5642 goto return_did_out
;
5644 case RSCN_ADDRESS_FORMAT_DOMAIN
:
5645 if (ns_did
.un
.b
.domain
== rscn_did
.un
.b
.domain
)
5646 goto return_did_out
;
5648 case RSCN_ADDRESS_FORMAT_FABRIC
:
5649 goto return_did_out
;
5653 /* Indicate we are done with walking fc_rscn_id_list on this vport */
5654 vport
->fc_rscn_flush
= 0;
5657 /* Indicate we are done with walking fc_rscn_id_list on this vport */
5658 vport
->fc_rscn_flush
= 0;
5663 * lpfc_rscn_recovery_check - Send recovery event to vport nodes matching rscn
5664 * @vport: pointer to a host virtual N_Port data structure.
5666 * This routine sends recovery (NLP_EVT_DEVICE_RECOVERY) event to the
5667 * state machine for a @vport's nodes that are with pending RSCN (Registration
5668 * State Change Notification).
5671 * 0 - Successful (currently alway return 0)
5674 lpfc_rscn_recovery_check(struct lpfc_vport
*vport
)
5676 struct lpfc_nodelist
*ndlp
= NULL
;
5678 /* Move all affected nodes by pending RSCNs to NPR state. */
5679 list_for_each_entry(ndlp
, &vport
->fc_nodes
, nlp_listp
) {
5680 if (!NLP_CHK_NODE_ACT(ndlp
) ||
5681 (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
) ||
5682 !lpfc_rscn_payload_check(vport
, ndlp
->nlp_DID
))
5684 lpfc_disc_state_machine(vport
, ndlp
, NULL
,
5685 NLP_EVT_DEVICE_RECOVERY
);
5686 lpfc_cancel_retry_delay_tmo(vport
, ndlp
);
5692 * lpfc_send_rscn_event - Send an RSCN event to management application
5693 * @vport: pointer to a host virtual N_Port data structure.
5694 * @cmdiocb: pointer to lpfc command iocb data structure.
5696 * lpfc_send_rscn_event sends an RSCN netlink event to management
5700 lpfc_send_rscn_event(struct lpfc_vport
*vport
,
5701 struct lpfc_iocbq
*cmdiocb
)
5703 struct lpfc_dmabuf
*pcmd
;
5704 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
5705 uint32_t *payload_ptr
;
5706 uint32_t payload_len
;
5707 struct lpfc_rscn_event_header
*rscn_event_data
;
5709 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
5710 payload_ptr
= (uint32_t *) pcmd
->virt
;
5711 payload_len
= be32_to_cpu(*payload_ptr
& ~ELS_CMD_MASK
);
5713 rscn_event_data
= kmalloc(sizeof(struct lpfc_rscn_event_header
) +
5714 payload_len
, GFP_KERNEL
);
5715 if (!rscn_event_data
) {
5716 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
5717 "0147 Failed to allocate memory for RSCN event\n");
5720 rscn_event_data
->event_type
= FC_REG_RSCN_EVENT
;
5721 rscn_event_data
->payload_length
= payload_len
;
5722 memcpy(rscn_event_data
->rscn_payload
, payload_ptr
,
5725 fc_host_post_vendor_event(shost
,
5726 fc_get_event_number(),
5727 sizeof(struct lpfc_rscn_event_header
) + payload_len
,
5728 (char *)rscn_event_data
,
5731 kfree(rscn_event_data
);
5735 * lpfc_els_rcv_rscn - Process an unsolicited rscn iocb
5736 * @vport: pointer to a host virtual N_Port data structure.
5737 * @cmdiocb: pointer to lpfc command iocb data structure.
5738 * @ndlp: pointer to a node-list data structure.
5740 * This routine processes an unsolicited RSCN (Registration State Change
5741 * Notification) IOCB. First, the payload of the unsolicited RSCN is walked
5742 * to invoke fc_host_post_event() routine to the FC transport layer. If the
5743 * discover state machine is about to begin discovery, it just accepts the
5744 * RSCN and the discovery process will satisfy the RSCN. If this RSCN only
5745 * contains N_Port IDs for other vports on this HBA, it just accepts the
5746 * RSCN and ignore processing it. If the state machine is in the recovery
5747 * state, the fc_rscn_id_list of this @vport is walked and the
5748 * lpfc_rscn_recovery_check() routine is invoked to send recovery event for
5749 * all nodes that match RSCN payload. Otherwise, the lpfc_els_handle_rscn()
5750 * routine is invoked to handle the RSCN event.
5753 * 0 - Just sent the acc response
5754 * 1 - Sent the acc response and waited for name server completion
5757 lpfc_els_rcv_rscn(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5758 struct lpfc_nodelist
*ndlp
)
5760 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
5761 struct lpfc_hba
*phba
= vport
->phba
;
5762 struct lpfc_dmabuf
*pcmd
;
5763 uint32_t *lp
, *datap
;
5764 uint32_t payload_len
, length
, nportid
, *cmd
;
5766 int rscn_id
= 0, hba_id
= 0;
5769 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
5770 lp
= (uint32_t *) pcmd
->virt
;
5772 payload_len
= be32_to_cpu(*lp
++ & ~ELS_CMD_MASK
);
5773 payload_len
-= sizeof(uint32_t); /* take off word 0 */
5775 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
5776 "0214 RSCN received Data: x%x x%x x%x x%x\n",
5777 vport
->fc_flag
, payload_len
, *lp
,
5778 vport
->fc_rscn_id_cnt
);
5780 /* Send an RSCN event to the management application */
5781 lpfc_send_rscn_event(vport
, cmdiocb
);
5783 for (i
= 0; i
< payload_len
/sizeof(uint32_t); i
++)
5784 fc_host_post_event(shost
, fc_get_event_number(),
5785 FCH_EVT_RSCN
, lp
[i
]);
5787 /* If we are about to begin discovery, just ACC the RSCN.
5788 * Discovery processing will satisfy it.
5790 if (vport
->port_state
<= LPFC_NS_QRY
) {
5791 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
5792 "RCV RSCN ignore: did:x%x/ste:x%x flg:x%x",
5793 ndlp
->nlp_DID
, vport
->port_state
, ndlp
->nlp_flag
);
5795 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
, ndlp
, NULL
);
5799 /* If this RSCN just contains NPortIDs for other vports on this HBA,
5800 * just ACC and ignore it.
5802 if ((phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
5803 !(vport
->cfg_peer_port_login
)) {
5808 nportid
= ((be32_to_cpu(nportid
)) & Mask_DID
);
5809 i
-= sizeof(uint32_t);
5811 if (lpfc_find_vport_by_did(phba
, nportid
))
5814 if (rscn_id
== hba_id
) {
5815 /* ALL NPortIDs in RSCN are on HBA */
5816 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
5818 "Data: x%x x%x x%x x%x\n",
5819 vport
->fc_flag
, payload_len
,
5820 *lp
, vport
->fc_rscn_id_cnt
);
5821 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
5822 "RCV RSCN vport: did:x%x/ste:x%x flg:x%x",
5823 ndlp
->nlp_DID
, vport
->port_state
,
5826 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
,
5832 spin_lock_irq(shost
->host_lock
);
5833 if (vport
->fc_rscn_flush
) {
5834 /* Another thread is walking fc_rscn_id_list on this vport */
5835 vport
->fc_flag
|= FC_RSCN_DISCOVERY
;
5836 spin_unlock_irq(shost
->host_lock
);
5838 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
, ndlp
, NULL
);
5841 /* Indicate we are walking fc_rscn_id_list on this vport */
5842 vport
->fc_rscn_flush
= 1;
5843 spin_unlock_irq(shost
->host_lock
);
5844 /* Get the array count after successfully have the token */
5845 rscn_cnt
= vport
->fc_rscn_id_cnt
;
5846 /* If we are already processing an RSCN, save the received
5847 * RSCN payload buffer, cmdiocb->context2 to process later.
5849 if (vport
->fc_flag
& (FC_RSCN_MODE
| FC_NDISC_ACTIVE
)) {
5850 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
5851 "RCV RSCN defer: did:x%x/ste:x%x flg:x%x",
5852 ndlp
->nlp_DID
, vport
->port_state
, ndlp
->nlp_flag
);
5854 spin_lock_irq(shost
->host_lock
);
5855 vport
->fc_flag
|= FC_RSCN_DEFERRED
;
5856 if ((rscn_cnt
< FC_MAX_HOLD_RSCN
) &&
5857 !(vport
->fc_flag
& FC_RSCN_DISCOVERY
)) {
5858 vport
->fc_flag
|= FC_RSCN_MODE
;
5859 spin_unlock_irq(shost
->host_lock
);
5861 cmd
= vport
->fc_rscn_id_list
[rscn_cnt
-1]->virt
;
5862 length
= be32_to_cpu(*cmd
& ~ELS_CMD_MASK
);
5865 (payload_len
+ length
<= LPFC_BPL_SIZE
)) {
5866 *cmd
&= ELS_CMD_MASK
;
5867 *cmd
|= cpu_to_be32(payload_len
+ length
);
5868 memcpy(((uint8_t *)cmd
) + length
, lp
,
5871 vport
->fc_rscn_id_list
[rscn_cnt
] = pcmd
;
5872 vport
->fc_rscn_id_cnt
++;
5873 /* If we zero, cmdiocb->context2, the calling
5874 * routine will not try to free it.
5876 cmdiocb
->context2
= NULL
;
5879 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
5880 "0235 Deferred RSCN "
5881 "Data: x%x x%x x%x\n",
5882 vport
->fc_rscn_id_cnt
, vport
->fc_flag
,
5885 vport
->fc_flag
|= FC_RSCN_DISCOVERY
;
5886 spin_unlock_irq(shost
->host_lock
);
5887 /* ReDiscovery RSCN */
5888 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
5889 "0234 ReDiscovery RSCN "
5890 "Data: x%x x%x x%x\n",
5891 vport
->fc_rscn_id_cnt
, vport
->fc_flag
,
5894 /* Indicate we are done walking fc_rscn_id_list on this vport */
5895 vport
->fc_rscn_flush
= 0;
5897 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
, ndlp
, NULL
);
5898 /* send RECOVERY event for ALL nodes that match RSCN payload */
5899 lpfc_rscn_recovery_check(vport
);
5900 spin_lock_irq(shost
->host_lock
);
5901 vport
->fc_flag
&= ~FC_RSCN_DEFERRED
;
5902 spin_unlock_irq(shost
->host_lock
);
5905 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
5906 "RCV RSCN: did:x%x/ste:x%x flg:x%x",
5907 ndlp
->nlp_DID
, vport
->port_state
, ndlp
->nlp_flag
);
5909 spin_lock_irq(shost
->host_lock
);
5910 vport
->fc_flag
|= FC_RSCN_MODE
;
5911 spin_unlock_irq(shost
->host_lock
);
5912 vport
->fc_rscn_id_list
[vport
->fc_rscn_id_cnt
++] = pcmd
;
5913 /* Indicate we are done walking fc_rscn_id_list on this vport */
5914 vport
->fc_rscn_flush
= 0;
5916 * If we zero, cmdiocb->context2, the calling routine will
5917 * not try to free it.
5919 cmdiocb
->context2
= NULL
;
5920 lpfc_set_disctmo(vport
);
5922 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
, ndlp
, NULL
);
5923 /* send RECOVERY event for ALL nodes that match RSCN payload */
5924 lpfc_rscn_recovery_check(vport
);
5925 return lpfc_els_handle_rscn(vport
);
5929 * lpfc_els_handle_rscn - Handle rscn for a vport
5930 * @vport: pointer to a host virtual N_Port data structure.
5932 * This routine handles the Registration State Configuration Notification
5933 * (RSCN) for a @vport. If login to NameServer does not exist, a new ndlp shall
5934 * be created and a Port Login (PLOGI) to the NameServer is issued. Otherwise,
5935 * if the ndlp to NameServer exists, a Common Transport (CT) command to the
5936 * NameServer shall be issued. If CT command to the NameServer fails to be
5937 * issued, the lpfc_els_flush_rscn() routine shall be invoked to clean up any
5938 * RSCN activities with the @vport.
5941 * 0 - Cleaned up rscn on the @vport
5942 * 1 - Wait for plogi to name server before proceed
5945 lpfc_els_handle_rscn(struct lpfc_vport
*vport
)
5947 struct lpfc_nodelist
*ndlp
;
5948 struct lpfc_hba
*phba
= vport
->phba
;
5950 /* Ignore RSCN if the port is being torn down. */
5951 if (vport
->load_flag
& FC_UNLOADING
) {
5952 lpfc_els_flush_rscn(vport
);
5956 /* Start timer for RSCN processing */
5957 lpfc_set_disctmo(vport
);
5959 /* RSCN processed */
5960 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
5961 "0215 RSCN processed Data: x%x x%x x%x x%x\n",
5962 vport
->fc_flag
, 0, vport
->fc_rscn_id_cnt
,
5965 /* To process RSCN, first compare RSCN data with NameServer */
5966 vport
->fc_ns_retry
= 0;
5967 vport
->num_disc_nodes
= 0;
5969 ndlp
= lpfc_findnode_did(vport
, NameServer_DID
);
5970 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
)
5971 && ndlp
->nlp_state
== NLP_STE_UNMAPPED_NODE
) {
5972 /* Good ndlp, issue CT Request to NameServer */
5973 if (lpfc_ns_cmd(vport
, SLI_CTNS_GID_FT
, 0, 0) == 0)
5974 /* Wait for NameServer query cmpl before we can
5978 /* If login to NameServer does not exist, issue one */
5979 /* Good status, issue PLOGI to NameServer */
5980 ndlp
= lpfc_findnode_did(vport
, NameServer_DID
);
5981 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
))
5982 /* Wait for NameServer login cmpl before we can
5987 ndlp
= lpfc_enable_node(vport
, ndlp
,
5988 NLP_STE_PLOGI_ISSUE
);
5990 lpfc_els_flush_rscn(vport
);
5993 ndlp
->nlp_prev_state
= NLP_STE_UNUSED_NODE
;
5995 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
5997 lpfc_els_flush_rscn(vport
);
6000 lpfc_nlp_init(vport
, ndlp
, NameServer_DID
);
6001 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
6002 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_PLOGI_ISSUE
);
6004 ndlp
->nlp_type
|= NLP_FABRIC
;
6005 lpfc_issue_els_plogi(vport
, NameServer_DID
, 0);
6006 /* Wait for NameServer login cmpl before we can
6012 lpfc_els_flush_rscn(vport
);
6017 * lpfc_els_rcv_flogi - Process an unsolicited flogi iocb
6018 * @vport: pointer to a host virtual N_Port data structure.
6019 * @cmdiocb: pointer to lpfc command iocb data structure.
6020 * @ndlp: pointer to a node-list data structure.
6022 * This routine processes Fabric Login (FLOGI) IOCB received as an ELS
6023 * unsolicited event. An unsolicited FLOGI can be received in a point-to-
6024 * point topology. As an unsolicited FLOGI should not be received in a loop
6025 * mode, any unsolicited FLOGI received in loop mode shall be ignored. The
6026 * lpfc_check_sparm() routine is invoked to check the parameters in the
6027 * unsolicited FLOGI. If parameters validation failed, the routine
6028 * lpfc_els_rsp_reject() shall be called with reject reason code set to
6029 * LSEXP_SPARM_OPTIONS to reject the FLOGI. Otherwise, the Port WWN in the
6030 * FLOGI shall be compared with the Port WWN of the @vport to determine who
6031 * will initiate PLOGI. The higher lexicographical value party shall has
6032 * higher priority (as the winning port) and will initiate PLOGI and
6033 * communicate Port_IDs (Addresses) for both nodes in PLOGI. The result
6034 * of this will be marked in the @vport fc_flag field with FC_PT2PT_PLOGI
6035 * and then the lpfc_els_rsp_acc() routine is invoked to accept the FLOGI.
6038 * 0 - Successfully processed the unsolicited flogi
6039 * 1 - Failed to process the unsolicited flogi
6042 lpfc_els_rcv_flogi(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
6043 struct lpfc_nodelist
*ndlp
)
6045 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
6046 struct lpfc_hba
*phba
= vport
->phba
;
6047 struct lpfc_dmabuf
*pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
6048 uint32_t *lp
= (uint32_t *) pcmd
->virt
;
6049 IOCB_t
*icmd
= &cmdiocb
->iocb
;
6050 struct serv_parm
*sp
;
6054 uint32_t fc_flag
= 0;
6055 uint32_t port_state
= 0;
6058 sp
= (struct serv_parm
*) lp
;
6060 /* FLOGI received */
6062 lpfc_set_disctmo(vport
);
6064 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
6065 /* We should never receive a FLOGI in loop mode, ignore it */
6066 did
= icmd
->un
.elsreq64
.remoteID
;
6068 /* An FLOGI ELS command <elsCmd> was received from DID <did> in
6070 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
6071 "0113 An FLOGI ELS command x%x was "
6072 "received from DID x%x in Loop Mode\n",
6077 (void) lpfc_check_sparm(vport
, ndlp
, sp
, CLASS3
, 1);
6081 * If our portname is greater than the remote portname,
6082 * then we initiate Nport login.
6085 rc
= memcmp(&vport
->fc_portname
, &sp
->portName
,
6086 sizeof(struct lpfc_name
));
6089 if (phba
->sli_rev
< LPFC_SLI_REV4
) {
6090 mbox
= mempool_alloc(phba
->mbox_mem_pool
,
6094 lpfc_linkdown(phba
);
6095 lpfc_init_link(phba
, mbox
,
6097 phba
->cfg_link_speed
);
6098 mbox
->u
.mb
.un
.varInitLnk
.lipsr_AL_PA
= 0;
6099 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
6100 mbox
->vport
= vport
;
6101 rc
= lpfc_sli_issue_mbox(phba
, mbox
,
6103 lpfc_set_loopback_flag(phba
);
6104 if (rc
== MBX_NOT_FINISHED
)
6105 mempool_free(mbox
, phba
->mbox_mem_pool
);
6109 /* abort the flogi coming back to ourselves
6110 * due to external loopback on the port.
6112 lpfc_els_abort_flogi(phba
);
6115 } else if (rc
> 0) { /* greater than */
6116 spin_lock_irq(shost
->host_lock
);
6117 vport
->fc_flag
|= FC_PT2PT_PLOGI
;
6118 spin_unlock_irq(shost
->host_lock
);
6120 /* If we have the high WWPN we can assign our own
6121 * myDID; otherwise, we have to WAIT for a PLOGI
6122 * from the remote NPort to find out what it
6125 vport
->fc_myDID
= PT2PT_LocalID
;
6127 vport
->fc_myDID
= PT2PT_RemoteID
;
6131 * The vport state should go to LPFC_FLOGI only
6132 * AFTER we issue a FLOGI, not receive one.
6134 spin_lock_irq(shost
->host_lock
);
6135 fc_flag
= vport
->fc_flag
;
6136 port_state
= vport
->port_state
;
6137 vport
->fc_flag
|= FC_PT2PT
;
6138 vport
->fc_flag
&= ~(FC_FABRIC
| FC_PUBLIC_LOOP
);
6139 spin_unlock_irq(shost
->host_lock
);
6140 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
6141 "3311 Rcv Flogi PS x%x new PS x%x "
6142 "fc_flag x%x new fc_flag x%x\n",
6143 port_state
, vport
->port_state
,
6144 fc_flag
, vport
->fc_flag
);
6147 * We temporarily set fc_myDID to make it look like we are
6148 * a Fabric. This is done just so we end up with the right
6149 * did / sid on the FLOGI ACC rsp.
6151 did
= vport
->fc_myDID
;
6152 vport
->fc_myDID
= Fabric_DID
;
6154 memcpy(&phba
->fc_fabparam
, sp
, sizeof(struct serv_parm
));
6157 lpfc_els_rsp_acc(vport
, ELS_CMD_FLOGI
, cmdiocb
, ndlp
, NULL
);
6159 /* Now lets put fc_myDID back to what its supposed to be */
6160 vport
->fc_myDID
= did
;
6166 * lpfc_els_rcv_rnid - Process an unsolicited rnid iocb
6167 * @vport: pointer to a host virtual N_Port data structure.
6168 * @cmdiocb: pointer to lpfc command iocb data structure.
6169 * @ndlp: pointer to a node-list data structure.
6171 * This routine processes Request Node Identification Data (RNID) IOCB
6172 * received as an ELS unsolicited event. Only when the RNID specified format
6173 * 0x0 or 0xDF (Topology Discovery Specific Node Identification Data)
6174 * present, this routine will invoke the lpfc_els_rsp_rnid_acc() routine to
6175 * Accept (ACC) the RNID ELS command. All the other RNID formats are
6176 * rejected by invoking the lpfc_els_rsp_reject() routine.
6179 * 0 - Successfully processed rnid iocb (currently always return 0)
6182 lpfc_els_rcv_rnid(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
6183 struct lpfc_nodelist
*ndlp
)
6185 struct lpfc_dmabuf
*pcmd
;
6191 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
6192 lp
= (uint32_t *) pcmd
->virt
;
6199 switch (rn
->Format
) {
6201 case RNID_TOPOLOGY_DISC
:
6203 lpfc_els_rsp_rnid_acc(vport
, rn
->Format
, cmdiocb
, ndlp
);
6206 /* Reject this request because format not supported */
6207 stat
.un
.b
.lsRjtRsvd0
= 0;
6208 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
6209 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_CANT_GIVE_DATA
;
6210 stat
.un
.b
.vendorUnique
= 0;
6211 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
,
6218 * lpfc_els_rcv_echo - Process an unsolicited echo iocb
6219 * @vport: pointer to a host virtual N_Port data structure.
6220 * @cmdiocb: pointer to lpfc command iocb data structure.
6221 * @ndlp: pointer to a node-list data structure.
6224 * 0 - Successfully processed echo iocb (currently always return 0)
6227 lpfc_els_rcv_echo(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
6228 struct lpfc_nodelist
*ndlp
)
6232 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) cmdiocb
->context2
)->virt
);
6234 /* skip over first word of echo command to find echo data */
6235 pcmd
+= sizeof(uint32_t);
6237 lpfc_els_rsp_echo_acc(vport
, pcmd
, cmdiocb
, ndlp
);
6242 * lpfc_els_rcv_lirr - Process an unsolicited lirr iocb
6243 * @vport: pointer to a host virtual N_Port data structure.
6244 * @cmdiocb: pointer to lpfc command iocb data structure.
6245 * @ndlp: pointer to a node-list data structure.
6247 * This routine processes a Link Incident Report Registration(LIRR) IOCB
6248 * received as an ELS unsolicited event. Currently, this function just invokes
6249 * the lpfc_els_rsp_reject() routine to reject the LIRR IOCB unconditionally.
6252 * 0 - Successfully processed lirr iocb (currently always return 0)
6255 lpfc_els_rcv_lirr(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
6256 struct lpfc_nodelist
*ndlp
)
6260 /* For now, unconditionally reject this command */
6261 stat
.un
.b
.lsRjtRsvd0
= 0;
6262 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
6263 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_CANT_GIVE_DATA
;
6264 stat
.un
.b
.vendorUnique
= 0;
6265 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
, NULL
);
6270 * lpfc_els_rcv_rrq - Process an unsolicited rrq iocb
6271 * @vport: pointer to a host virtual N_Port data structure.
6272 * @cmdiocb: pointer to lpfc command iocb data structure.
6273 * @ndlp: pointer to a node-list data structure.
6275 * This routine processes a Reinstate Recovery Qualifier (RRQ) IOCB
6276 * received as an ELS unsolicited event. A request to RRQ shall only
6277 * be accepted if the Originator Nx_Port N_Port_ID or the Responder
6278 * Nx_Port N_Port_ID of the target Exchange is the same as the
6279 * N_Port_ID of the Nx_Port that makes the request. If the RRQ is
6280 * not accepted, an LS_RJT with reason code "Unable to perform
6281 * command request" and reason code explanation "Invalid Originator
6282 * S_ID" shall be returned. For now, we just unconditionally accept
6283 * RRQ from the target.
6286 lpfc_els_rcv_rrq(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
6287 struct lpfc_nodelist
*ndlp
)
6289 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
, ndlp
, NULL
);
6290 if (vport
->phba
->sli_rev
== LPFC_SLI_REV4
)
6291 lpfc_els_clear_rrq(vport
, cmdiocb
, ndlp
);
6295 * lpfc_els_rsp_rls_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd
6296 * @phba: pointer to lpfc hba data structure.
6297 * @pmb: pointer to the driver internal queue element for mailbox command.
6299 * This routine is the completion callback function for the MBX_READ_LNK_STAT
6300 * mailbox command. This callback function is to actually send the Accept
6301 * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It
6302 * collects the link statistics from the completion of the MBX_READ_LNK_STAT
6303 * mailbox command, constructs the RPS response with the link statistics
6304 * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC
6305 * response to the RPS.
6307 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
6308 * will be incremented by 1 for holding the ndlp and the reference to ndlp
6309 * will be stored into the context1 field of the IOCB for the completion
6310 * callback function to the RPS Accept Response ELS IOCB command.
6314 lpfc_els_rsp_rls_acc(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
6318 struct RLS_RSP
*rls_rsp
;
6320 struct lpfc_iocbq
*elsiocb
;
6321 struct lpfc_nodelist
*ndlp
;
6328 ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
6329 rxid
= (uint16_t) ((unsigned long)(pmb
->context1
) & 0xffff);
6330 oxid
= (uint16_t) (((unsigned long)(pmb
->context1
) >> 16) & 0xffff);
6331 pmb
->context1
= NULL
;
6332 pmb
->context2
= NULL
;
6334 if (mb
->mbxStatus
) {
6335 mempool_free(pmb
, phba
->mbox_mem_pool
);
6339 cmdsize
= sizeof(struct RLS_RSP
) + sizeof(uint32_t);
6340 elsiocb
= lpfc_prep_els_iocb(phba
->pport
, 0, cmdsize
,
6341 lpfc_max_els_tries
, ndlp
,
6342 ndlp
->nlp_DID
, ELS_CMD_ACC
);
6344 /* Decrement the ndlp reference count from previous mbox command */
6348 mempool_free(pmb
, phba
->mbox_mem_pool
);
6352 icmd
= &elsiocb
->iocb
;
6353 icmd
->ulpContext
= rxid
;
6354 icmd
->unsli3
.rcvsli3
.ox_id
= oxid
;
6356 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
6357 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
6358 pcmd
+= sizeof(uint32_t); /* Skip past command */
6359 rls_rsp
= (struct RLS_RSP
*)pcmd
;
6361 rls_rsp
->linkFailureCnt
= cpu_to_be32(mb
->un
.varRdLnk
.linkFailureCnt
);
6362 rls_rsp
->lossSyncCnt
= cpu_to_be32(mb
->un
.varRdLnk
.lossSyncCnt
);
6363 rls_rsp
->lossSignalCnt
= cpu_to_be32(mb
->un
.varRdLnk
.lossSignalCnt
);
6364 rls_rsp
->primSeqErrCnt
= cpu_to_be32(mb
->un
.varRdLnk
.primSeqErrCnt
);
6365 rls_rsp
->invalidXmitWord
= cpu_to_be32(mb
->un
.varRdLnk
.invalidXmitWord
);
6366 rls_rsp
->crcCnt
= cpu_to_be32(mb
->un
.varRdLnk
.crcCnt
);
6367 mempool_free(pmb
, phba
->mbox_mem_pool
);
6368 /* Xmit ELS RLS ACC response tag <ulpIoTag> */
6369 lpfc_printf_vlog(ndlp
->vport
, KERN_INFO
, LOG_ELS
,
6370 "2874 Xmit ELS RLS ACC response tag x%x xri x%x, "
6371 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
6372 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
6373 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
6375 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
6376 phba
->fc_stat
.elsXmitACC
++;
6377 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) == IOCB_ERROR
)
6378 lpfc_els_free_iocb(phba
, elsiocb
);
6382 * lpfc_els_rsp_rps_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd
6383 * @phba: pointer to lpfc hba data structure.
6384 * @pmb: pointer to the driver internal queue element for mailbox command.
6386 * This routine is the completion callback function for the MBX_READ_LNK_STAT
6387 * mailbox command. This callback function is to actually send the Accept
6388 * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It
6389 * collects the link statistics from the completion of the MBX_READ_LNK_STAT
6390 * mailbox command, constructs the RPS response with the link statistics
6391 * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC
6392 * response to the RPS.
6394 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
6395 * will be incremented by 1 for holding the ndlp and the reference to ndlp
6396 * will be stored into the context1 field of the IOCB for the completion
6397 * callback function to the RPS Accept Response ELS IOCB command.
6401 lpfc_els_rsp_rps_acc(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
6407 struct lpfc_iocbq
*elsiocb
;
6408 struct lpfc_nodelist
*ndlp
;
6416 ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
6417 rxid
= (uint16_t) ((unsigned long)(pmb
->context1
) & 0xffff);
6418 oxid
= (uint16_t) (((unsigned long)(pmb
->context1
) >> 16) & 0xffff);
6419 pmb
->context1
= NULL
;
6420 pmb
->context2
= NULL
;
6422 if (mb
->mbxStatus
) {
6423 mempool_free(pmb
, phba
->mbox_mem_pool
);
6427 cmdsize
= sizeof(RPS_RSP
) + sizeof(uint32_t);
6428 mempool_free(pmb
, phba
->mbox_mem_pool
);
6429 elsiocb
= lpfc_prep_els_iocb(phba
->pport
, 0, cmdsize
,
6430 lpfc_max_els_tries
, ndlp
,
6431 ndlp
->nlp_DID
, ELS_CMD_ACC
);
6433 /* Decrement the ndlp reference count from previous mbox command */
6439 icmd
= &elsiocb
->iocb
;
6440 icmd
->ulpContext
= rxid
;
6441 icmd
->unsli3
.rcvsli3
.ox_id
= oxid
;
6443 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
6444 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
6445 pcmd
+= sizeof(uint32_t); /* Skip past command */
6446 rps_rsp
= (RPS_RSP
*)pcmd
;
6448 if (phba
->fc_topology
!= LPFC_TOPOLOGY_LOOP
)
6452 if (phba
->pport
->fc_flag
& FC_FABRIC
)
6456 rps_rsp
->portStatus
= cpu_to_be16(status
);
6457 rps_rsp
->linkFailureCnt
= cpu_to_be32(mb
->un
.varRdLnk
.linkFailureCnt
);
6458 rps_rsp
->lossSyncCnt
= cpu_to_be32(mb
->un
.varRdLnk
.lossSyncCnt
);
6459 rps_rsp
->lossSignalCnt
= cpu_to_be32(mb
->un
.varRdLnk
.lossSignalCnt
);
6460 rps_rsp
->primSeqErrCnt
= cpu_to_be32(mb
->un
.varRdLnk
.primSeqErrCnt
);
6461 rps_rsp
->invalidXmitWord
= cpu_to_be32(mb
->un
.varRdLnk
.invalidXmitWord
);
6462 rps_rsp
->crcCnt
= cpu_to_be32(mb
->un
.varRdLnk
.crcCnt
);
6463 /* Xmit ELS RPS ACC response tag <ulpIoTag> */
6464 lpfc_printf_vlog(ndlp
->vport
, KERN_INFO
, LOG_ELS
,
6465 "0118 Xmit ELS RPS ACC response tag x%x xri x%x, "
6466 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
6467 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
6468 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
6470 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
6471 phba
->fc_stat
.elsXmitACC
++;
6472 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) == IOCB_ERROR
)
6473 lpfc_els_free_iocb(phba
, elsiocb
);
6478 * lpfc_els_rcv_rls - Process an unsolicited rls iocb
6479 * @vport: pointer to a host virtual N_Port data structure.
6480 * @cmdiocb: pointer to lpfc command iocb data structure.
6481 * @ndlp: pointer to a node-list data structure.
6483 * This routine processes Read Port Status (RPL) IOCB received as an
6484 * ELS unsolicited event. It first checks the remote port state. If the
6485 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
6486 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject
6487 * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command
6488 * for reading the HBA link statistics. It is for the callback function,
6489 * lpfc_els_rsp_rls_acc(), set to the MBX_READ_LNK_STAT mailbox command
6490 * to actually sending out RPL Accept (ACC) response.
6493 * 0 - Successfully processed rls iocb (currently always return 0)
6496 lpfc_els_rcv_rls(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
6497 struct lpfc_nodelist
*ndlp
)
6499 struct lpfc_hba
*phba
= vport
->phba
;
6503 if ((ndlp
->nlp_state
!= NLP_STE_UNMAPPED_NODE
) &&
6504 (ndlp
->nlp_state
!= NLP_STE_MAPPED_NODE
))
6505 /* reject the unsolicited RPS request and done with it */
6508 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_ATOMIC
);
6510 lpfc_read_lnk_stat(phba
, mbox
);
6511 mbox
->context1
= (void *)((unsigned long)
6512 ((cmdiocb
->iocb
.unsli3
.rcvsli3
.ox_id
<< 16) |
6513 cmdiocb
->iocb
.ulpContext
)); /* rx_id */
6514 mbox
->context2
= lpfc_nlp_get(ndlp
);
6515 mbox
->vport
= vport
;
6516 mbox
->mbox_cmpl
= lpfc_els_rsp_rls_acc
;
6517 if (lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
)
6518 != MBX_NOT_FINISHED
)
6519 /* Mbox completion will send ELS Response */
6521 /* Decrement reference count used for the failed mbox
6525 mempool_free(mbox
, phba
->mbox_mem_pool
);
6528 /* issue rejection response */
6529 stat
.un
.b
.lsRjtRsvd0
= 0;
6530 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
6531 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_CANT_GIVE_DATA
;
6532 stat
.un
.b
.vendorUnique
= 0;
6533 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
, NULL
);
6538 * lpfc_els_rcv_rtv - Process an unsolicited rtv iocb
6539 * @vport: pointer to a host virtual N_Port data structure.
6540 * @cmdiocb: pointer to lpfc command iocb data structure.
6541 * @ndlp: pointer to a node-list data structure.
6543 * This routine processes Read Timout Value (RTV) IOCB received as an
6544 * ELS unsolicited event. It first checks the remote port state. If the
6545 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
6546 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject
6547 * response. Otherwise, it sends the Accept(ACC) response to a Read Timeout
6548 * Value (RTV) unsolicited IOCB event.
6550 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
6551 * will be incremented by 1 for holding the ndlp and the reference to ndlp
6552 * will be stored into the context1 field of the IOCB for the completion
6553 * callback function to the RPS Accept Response ELS IOCB command.
6556 * 0 - Successfully processed rtv iocb (currently always return 0)
6559 lpfc_els_rcv_rtv(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
6560 struct lpfc_nodelist
*ndlp
)
6562 struct lpfc_hba
*phba
= vport
->phba
;
6564 struct RTV_RSP
*rtv_rsp
;
6566 struct lpfc_iocbq
*elsiocb
;
6570 if ((ndlp
->nlp_state
!= NLP_STE_UNMAPPED_NODE
) &&
6571 (ndlp
->nlp_state
!= NLP_STE_MAPPED_NODE
))
6572 /* reject the unsolicited RPS request and done with it */
6575 cmdsize
= sizeof(struct RTV_RSP
) + sizeof(uint32_t);
6576 elsiocb
= lpfc_prep_els_iocb(phba
->pport
, 0, cmdsize
,
6577 lpfc_max_els_tries
, ndlp
,
6578 ndlp
->nlp_DID
, ELS_CMD_ACC
);
6583 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
6584 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
6585 pcmd
+= sizeof(uint32_t); /* Skip past command */
6587 /* use the command's xri in the response */
6588 elsiocb
->iocb
.ulpContext
= cmdiocb
->iocb
.ulpContext
; /* Xri / rx_id */
6589 elsiocb
->iocb
.unsli3
.rcvsli3
.ox_id
= cmdiocb
->iocb
.unsli3
.rcvsli3
.ox_id
;
6591 rtv_rsp
= (struct RTV_RSP
*)pcmd
;
6593 /* populate RTV payload */
6594 rtv_rsp
->ratov
= cpu_to_be32(phba
->fc_ratov
* 1000); /* report msecs */
6595 rtv_rsp
->edtov
= cpu_to_be32(phba
->fc_edtov
);
6596 bf_set(qtov_edtovres
, rtv_rsp
, phba
->fc_edtovResol
? 1 : 0);
6597 bf_set(qtov_rttov
, rtv_rsp
, 0); /* Field is for FC ONLY */
6598 rtv_rsp
->qtov
= cpu_to_be32(rtv_rsp
->qtov
);
6600 /* Xmit ELS RLS ACC response tag <ulpIoTag> */
6601 lpfc_printf_vlog(ndlp
->vport
, KERN_INFO
, LOG_ELS
,
6602 "2875 Xmit ELS RTV ACC response tag x%x xri x%x, "
6603 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x, "
6604 "Data: x%x x%x x%x\n",
6605 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
6606 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
6608 rtv_rsp
->ratov
, rtv_rsp
->edtov
, rtv_rsp
->qtov
);
6609 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
6610 phba
->fc_stat
.elsXmitACC
++;
6611 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) == IOCB_ERROR
)
6612 lpfc_els_free_iocb(phba
, elsiocb
);
6616 /* issue rejection response */
6617 stat
.un
.b
.lsRjtRsvd0
= 0;
6618 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
6619 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_CANT_GIVE_DATA
;
6620 stat
.un
.b
.vendorUnique
= 0;
6621 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
, NULL
);
6625 /* lpfc_els_rcv_rps - Process an unsolicited rps iocb
6626 * @vport: pointer to a host virtual N_Port data structure.
6627 * @cmdiocb: pointer to lpfc command iocb data structure.
6628 * @ndlp: pointer to a node-list data structure.
6630 * This routine processes Read Port Status (RPS) IOCB received as an
6631 * ELS unsolicited event. It first checks the remote port state. If the
6632 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
6633 * state, it invokes the lpfc_els_rsp_reject() routine to send the reject
6634 * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command
6635 * for reading the HBA link statistics. It is for the callback function,
6636 * lpfc_els_rsp_rps_acc(), set to the MBX_READ_LNK_STAT mailbox command
6637 * to actually sending out RPS Accept (ACC) response.
6640 * 0 - Successfully processed rps iocb (currently always return 0)
6643 lpfc_els_rcv_rps(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
6644 struct lpfc_nodelist
*ndlp
)
6646 struct lpfc_hba
*phba
= vport
->phba
;
6650 struct lpfc_dmabuf
*pcmd
;
6654 if ((ndlp
->nlp_state
!= NLP_STE_UNMAPPED_NODE
) &&
6655 (ndlp
->nlp_state
!= NLP_STE_MAPPED_NODE
))
6656 /* reject the unsolicited RPS request and done with it */
6659 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
6660 lp
= (uint32_t *) pcmd
->virt
;
6661 flag
= (be32_to_cpu(*lp
++) & 0xf);
6665 ((flag
== 1) && (be32_to_cpu(rps
->un
.portNum
) == 0)) ||
6666 ((flag
== 2) && (memcmp(&rps
->un
.portName
, &vport
->fc_portname
,
6667 sizeof(struct lpfc_name
)) == 0))) {
6669 printk("Fix me....\n");
6671 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_ATOMIC
);
6673 lpfc_read_lnk_stat(phba
, mbox
);
6674 mbox
->context1
= (void *)((unsigned long)
6675 ((cmdiocb
->iocb
.unsli3
.rcvsli3
.ox_id
<< 16) |
6676 cmdiocb
->iocb
.ulpContext
)); /* rx_id */
6677 mbox
->context2
= lpfc_nlp_get(ndlp
);
6678 mbox
->vport
= vport
;
6679 mbox
->mbox_cmpl
= lpfc_els_rsp_rps_acc
;
6680 if (lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
)
6681 != MBX_NOT_FINISHED
)
6682 /* Mbox completion will send ELS Response */
6684 /* Decrement reference count used for the failed mbox
6688 mempool_free(mbox
, phba
->mbox_mem_pool
);
6693 /* issue rejection response */
6694 stat
.un
.b
.lsRjtRsvd0
= 0;
6695 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
6696 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_CANT_GIVE_DATA
;
6697 stat
.un
.b
.vendorUnique
= 0;
6698 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
, NULL
);
6702 /* lpfc_issue_els_rrq - Process an unsolicited rps iocb
6703 * @vport: pointer to a host virtual N_Port data structure.
6704 * @ndlp: pointer to a node-list data structure.
6705 * @did: DID of the target.
6706 * @rrq: Pointer to the rrq struct.
6708 * Build a ELS RRQ command and send it to the target. If the issue_iocb is
6709 * Successful the the completion handler will clear the RRQ.
6712 * 0 - Successfully sent rrq els iocb.
6713 * 1 - Failed to send rrq els iocb.
6716 lpfc_issue_els_rrq(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
6717 uint32_t did
, struct lpfc_node_rrq
*rrq
)
6719 struct lpfc_hba
*phba
= vport
->phba
;
6720 struct RRQ
*els_rrq
;
6721 struct lpfc_iocbq
*elsiocb
;
6727 if (ndlp
!= rrq
->ndlp
)
6729 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
))
6732 /* If ndlp is not NULL, we will bump the reference count on it */
6733 cmdsize
= (sizeof(uint32_t) + sizeof(struct RRQ
));
6734 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, 0, ndlp
, did
,
6739 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
6741 /* For RRQ request, remainder of payload is Exchange IDs */
6742 *((uint32_t *) (pcmd
)) = ELS_CMD_RRQ
;
6743 pcmd
+= sizeof(uint32_t);
6744 els_rrq
= (struct RRQ
*) pcmd
;
6746 bf_set(rrq_oxid
, els_rrq
, phba
->sli4_hba
.xri_ids
[rrq
->xritag
]);
6747 bf_set(rrq_rxid
, els_rrq
, rrq
->rxid
);
6748 bf_set(rrq_did
, els_rrq
, vport
->fc_myDID
);
6749 els_rrq
->rrq
= cpu_to_be32(els_rrq
->rrq
);
6750 els_rrq
->rrq_exchg
= cpu_to_be32(els_rrq
->rrq_exchg
);
6753 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
6754 "Issue RRQ: did:x%x",
6755 did
, rrq
->xritag
, rrq
->rxid
);
6756 elsiocb
->context_un
.rrq
= rrq
;
6757 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rrq
;
6758 ret
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
6760 if (ret
== IOCB_ERROR
) {
6761 lpfc_els_free_iocb(phba
, elsiocb
);
6768 * lpfc_send_rrq - Sends ELS RRQ if needed.
6769 * @phba: pointer to lpfc hba data structure.
6770 * @rrq: pointer to the active rrq.
6772 * This routine will call the lpfc_issue_els_rrq if the rrq is
6773 * still active for the xri. If this function returns a failure then
6774 * the caller needs to clean up the RRQ by calling lpfc_clr_active_rrq.
6776 * Returns 0 Success.
6780 lpfc_send_rrq(struct lpfc_hba
*phba
, struct lpfc_node_rrq
*rrq
)
6782 struct lpfc_nodelist
*ndlp
= lpfc_findnode_did(rrq
->vport
,
6784 if (lpfc_test_rrq_active(phba
, ndlp
, rrq
->xritag
))
6785 return lpfc_issue_els_rrq(rrq
->vport
, ndlp
,
6792 * lpfc_els_rsp_rpl_acc - Issue an accept rpl els command
6793 * @vport: pointer to a host virtual N_Port data structure.
6794 * @cmdsize: size of the ELS command.
6795 * @oldiocb: pointer to the original lpfc command iocb data structure.
6796 * @ndlp: pointer to a node-list data structure.
6798 * This routine issuees an Accept (ACC) Read Port List (RPL) ELS command.
6799 * It is to be called by the lpfc_els_rcv_rpl() routine to accept the RPL.
6801 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
6802 * will be incremented by 1 for holding the ndlp and the reference to ndlp
6803 * will be stored into the context1 field of the IOCB for the completion
6804 * callback function to the RPL Accept Response ELS command.
6807 * 0 - Successfully issued ACC RPL ELS command
6808 * 1 - Failed to issue ACC RPL ELS command
6811 lpfc_els_rsp_rpl_acc(struct lpfc_vport
*vport
, uint16_t cmdsize
,
6812 struct lpfc_iocbq
*oldiocb
, struct lpfc_nodelist
*ndlp
)
6814 struct lpfc_hba
*phba
= vport
->phba
;
6815 IOCB_t
*icmd
, *oldcmd
;
6817 struct lpfc_iocbq
*elsiocb
;
6820 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
, ndlp
,
6821 ndlp
->nlp_DID
, ELS_CMD_ACC
);
6826 icmd
= &elsiocb
->iocb
;
6827 oldcmd
= &oldiocb
->iocb
;
6828 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
6829 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
6831 pcmd
= (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
6832 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
6833 pcmd
+= sizeof(uint16_t);
6834 *((uint16_t *)(pcmd
)) = be16_to_cpu(cmdsize
);
6835 pcmd
+= sizeof(uint16_t);
6837 /* Setup the RPL ACC payload */
6838 rpl_rsp
.listLen
= be32_to_cpu(1);
6840 rpl_rsp
.port_num_blk
.portNum
= 0;
6841 rpl_rsp
.port_num_blk
.portID
= be32_to_cpu(vport
->fc_myDID
);
6842 memcpy(&rpl_rsp
.port_num_blk
.portName
, &vport
->fc_portname
,
6843 sizeof(struct lpfc_name
));
6844 memcpy(pcmd
, &rpl_rsp
, cmdsize
- sizeof(uint32_t));
6845 /* Xmit ELS RPL ACC response tag <ulpIoTag> */
6846 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
6847 "0120 Xmit ELS RPL ACC response tag x%x "
6848 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
6850 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
6851 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
6853 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
6854 phba
->fc_stat
.elsXmitACC
++;
6855 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) ==
6857 lpfc_els_free_iocb(phba
, elsiocb
);
6864 * lpfc_els_rcv_rpl - Process an unsolicited rpl iocb
6865 * @vport: pointer to a host virtual N_Port data structure.
6866 * @cmdiocb: pointer to lpfc command iocb data structure.
6867 * @ndlp: pointer to a node-list data structure.
6869 * This routine processes Read Port List (RPL) IOCB received as an ELS
6870 * unsolicited event. It first checks the remote port state. If the remote
6871 * port is not in NLP_STE_UNMAPPED_NODE and NLP_STE_MAPPED_NODE states, it
6872 * invokes the lpfc_els_rsp_reject() routine to send reject response.
6873 * Otherwise, this routine then invokes the lpfc_els_rsp_rpl_acc() routine
6874 * to accept the RPL.
6877 * 0 - Successfully processed rpl iocb (currently always return 0)
6880 lpfc_els_rcv_rpl(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
6881 struct lpfc_nodelist
*ndlp
)
6883 struct lpfc_dmabuf
*pcmd
;
6890 if ((ndlp
->nlp_state
!= NLP_STE_UNMAPPED_NODE
) &&
6891 (ndlp
->nlp_state
!= NLP_STE_MAPPED_NODE
)) {
6892 /* issue rejection response */
6893 stat
.un
.b
.lsRjtRsvd0
= 0;
6894 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
6895 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_CANT_GIVE_DATA
;
6896 stat
.un
.b
.vendorUnique
= 0;
6897 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
,
6899 /* rejected the unsolicited RPL request and done with it */
6903 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
6904 lp
= (uint32_t *) pcmd
->virt
;
6905 rpl
= (RPL
*) (lp
+ 1);
6906 maxsize
= be32_to_cpu(rpl
->maxsize
);
6908 /* We support only one port */
6909 if ((rpl
->index
== 0) &&
6911 ((maxsize
* sizeof(uint32_t)) >= sizeof(RPL_RSP
)))) {
6912 cmdsize
= sizeof(uint32_t) + sizeof(RPL_RSP
);
6914 cmdsize
= sizeof(uint32_t) + maxsize
* sizeof(uint32_t);
6916 lpfc_els_rsp_rpl_acc(vport
, cmdsize
, cmdiocb
, ndlp
);
6922 * lpfc_els_rcv_farp - Process an unsolicited farp request els command
6923 * @vport: pointer to a virtual N_Port data structure.
6924 * @cmdiocb: pointer to lpfc command iocb data structure.
6925 * @ndlp: pointer to a node-list data structure.
6927 * This routine processes Fibre Channel Address Resolution Protocol
6928 * (FARP) Request IOCB received as an ELS unsolicited event. Currently,
6929 * the lpfc driver only supports matching on WWPN or WWNN for FARP. As such,
6930 * FARP_MATCH_PORT flag and FARP_MATCH_NODE flag are checked against the
6931 * Match Flag in the FARP request IOCB: if FARP_MATCH_PORT flag is set, the
6932 * remote PortName is compared against the FC PortName stored in the @vport
6933 * data structure; if FARP_MATCH_NODE flag is set, the remote NodeName is
6934 * compared against the FC NodeName stored in the @vport data structure.
6935 * If any of these matches and the FARP_REQUEST_FARPR flag is set in the
6936 * FARP request IOCB Response Flag, the lpfc_issue_els_farpr() routine is
6937 * invoked to send out FARP Response to the remote node. Before sending the
6938 * FARP Response, however, the FARP_REQUEST_PLOGI flag is check in the FARP
6939 * request IOCB Response Flag and, if it is set, the lpfc_issue_els_plogi()
6940 * routine is invoked to log into the remote port first.
6943 * 0 - Either the FARP Match Mode not supported or successfully processed
6946 lpfc_els_rcv_farp(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
6947 struct lpfc_nodelist
*ndlp
)
6949 struct lpfc_dmabuf
*pcmd
;
6953 uint32_t cmd
, cnt
, did
;
6955 icmd
= &cmdiocb
->iocb
;
6956 did
= icmd
->un
.elsreq64
.remoteID
;
6957 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
6958 lp
= (uint32_t *) pcmd
->virt
;
6962 /* FARP-REQ received from DID <did> */
6963 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
6964 "0601 FARP-REQ received from DID x%x\n", did
);
6965 /* We will only support match on WWPN or WWNN */
6966 if (fp
->Mflags
& ~(FARP_MATCH_NODE
| FARP_MATCH_PORT
)) {
6971 /* If this FARP command is searching for my portname */
6972 if (fp
->Mflags
& FARP_MATCH_PORT
) {
6973 if (memcmp(&fp
->RportName
, &vport
->fc_portname
,
6974 sizeof(struct lpfc_name
)) == 0)
6978 /* If this FARP command is searching for my nodename */
6979 if (fp
->Mflags
& FARP_MATCH_NODE
) {
6980 if (memcmp(&fp
->RnodeName
, &vport
->fc_nodename
,
6981 sizeof(struct lpfc_name
)) == 0)
6986 if ((ndlp
->nlp_state
== NLP_STE_UNMAPPED_NODE
) ||
6987 (ndlp
->nlp_state
== NLP_STE_MAPPED_NODE
)) {
6988 /* Log back into the node before sending the FARP. */
6989 if (fp
->Rflags
& FARP_REQUEST_PLOGI
) {
6990 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
6991 lpfc_nlp_set_state(vport
, ndlp
,
6992 NLP_STE_PLOGI_ISSUE
);
6993 lpfc_issue_els_plogi(vport
, ndlp
->nlp_DID
, 0);
6996 /* Send a FARP response to that node */
6997 if (fp
->Rflags
& FARP_REQUEST_FARPR
)
6998 lpfc_issue_els_farpr(vport
, did
, 0);
7005 * lpfc_els_rcv_farpr - Process an unsolicited farp response iocb
7006 * @vport: pointer to a host virtual N_Port data structure.
7007 * @cmdiocb: pointer to lpfc command iocb data structure.
7008 * @ndlp: pointer to a node-list data structure.
7010 * This routine processes Fibre Channel Address Resolution Protocol
7011 * Response (FARPR) IOCB received as an ELS unsolicited event. It simply
7012 * invokes the lpfc_els_rsp_acc() routine to the remote node to accept
7013 * the FARP response request.
7016 * 0 - Successfully processed FARPR IOCB (currently always return 0)
7019 lpfc_els_rcv_farpr(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
7020 struct lpfc_nodelist
*ndlp
)
7022 struct lpfc_dmabuf
*pcmd
;
7027 icmd
= &cmdiocb
->iocb
;
7028 did
= icmd
->un
.elsreq64
.remoteID
;
7029 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
7030 lp
= (uint32_t *) pcmd
->virt
;
7033 /* FARP-RSP received from DID <did> */
7034 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
7035 "0600 FARP-RSP received from DID x%x\n", did
);
7036 /* ACCEPT the Farp resp request */
7037 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
, ndlp
, NULL
);
7043 * lpfc_els_rcv_fan - Process an unsolicited fan iocb command
7044 * @vport: pointer to a host virtual N_Port data structure.
7045 * @cmdiocb: pointer to lpfc command iocb data structure.
7046 * @fan_ndlp: pointer to a node-list data structure.
7048 * This routine processes a Fabric Address Notification (FAN) IOCB
7049 * command received as an ELS unsolicited event. The FAN ELS command will
7050 * only be processed on a physical port (i.e., the @vport represents the
7051 * physical port). The fabric NodeName and PortName from the FAN IOCB are
7052 * compared against those in the phba data structure. If any of those is
7053 * different, the lpfc_initial_flogi() routine is invoked to initialize
7054 * Fabric Login (FLOGI) to the fabric to start the discover over. Otherwise,
7055 * if both of those are identical, the lpfc_issue_fabric_reglogin() routine
7056 * is invoked to register login to the fabric.
7059 * 0 - Successfully processed fan iocb (currently always return 0).
7062 lpfc_els_rcv_fan(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
7063 struct lpfc_nodelist
*fan_ndlp
)
7065 struct lpfc_hba
*phba
= vport
->phba
;
7069 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
, "0265 FAN received\n");
7070 lp
= (uint32_t *)((struct lpfc_dmabuf
*)cmdiocb
->context2
)->virt
;
7072 /* FAN received; Fan does not have a reply sequence */
7073 if ((vport
== phba
->pport
) &&
7074 (vport
->port_state
== LPFC_LOCAL_CFG_LINK
)) {
7075 if ((memcmp(&phba
->fc_fabparam
.nodeName
, &fp
->FnodeName
,
7076 sizeof(struct lpfc_name
))) ||
7077 (memcmp(&phba
->fc_fabparam
.portName
, &fp
->FportName
,
7078 sizeof(struct lpfc_name
)))) {
7079 /* This port has switched fabrics. FLOGI is required */
7080 lpfc_issue_init_vfi(vport
);
7082 /* FAN verified - skip FLOGI */
7083 vport
->fc_myDID
= vport
->fc_prevDID
;
7084 if (phba
->sli_rev
< LPFC_SLI_REV4
)
7085 lpfc_issue_fabric_reglogin(vport
);
7087 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
7088 "3138 Need register VFI: (x%x/%x)\n",
7089 vport
->fc_prevDID
, vport
->fc_myDID
);
7090 lpfc_issue_reg_vfi(vport
);
7098 * lpfc_els_timeout - Handler funciton to the els timer
7099 * @ptr: holder for the timer function associated data.
7101 * This routine is invoked by the ELS timer after timeout. It posts the ELS
7102 * timer timeout event by setting the WORKER_ELS_TMO bit to the work port
7103 * event bitmap and then invokes the lpfc_worker_wake_up() routine to wake
7104 * up the worker thread. It is for the worker thread to invoke the routine
7105 * lpfc_els_timeout_handler() to work on the posted event WORKER_ELS_TMO.
7108 lpfc_els_timeout(unsigned long ptr
)
7110 struct lpfc_vport
*vport
= (struct lpfc_vport
*) ptr
;
7111 struct lpfc_hba
*phba
= vport
->phba
;
7112 uint32_t tmo_posted
;
7113 unsigned long iflag
;
7115 spin_lock_irqsave(&vport
->work_port_lock
, iflag
);
7116 tmo_posted
= vport
->work_port_events
& WORKER_ELS_TMO
;
7117 if ((!tmo_posted
) && (!(vport
->load_flag
& FC_UNLOADING
)))
7118 vport
->work_port_events
|= WORKER_ELS_TMO
;
7119 spin_unlock_irqrestore(&vport
->work_port_lock
, iflag
);
7121 if ((!tmo_posted
) && (!(vport
->load_flag
& FC_UNLOADING
)))
7122 lpfc_worker_wake_up(phba
);
7128 * lpfc_els_timeout_handler - Process an els timeout event
7129 * @vport: pointer to a virtual N_Port data structure.
7131 * This routine is the actual handler function that processes an ELS timeout
7132 * event. It walks the ELS ring to get and abort all the IOCBs (except the
7133 * ABORT/CLOSE/FARP/FARPR/FDISC), which are associated with the @vport by
7134 * invoking the lpfc_sli_issue_abort_iotag() routine.
7137 lpfc_els_timeout_handler(struct lpfc_vport
*vport
)
7139 struct lpfc_hba
*phba
= vport
->phba
;
7140 struct lpfc_sli_ring
*pring
;
7141 struct lpfc_iocbq
*tmp_iocb
, *piocb
;
7143 struct lpfc_dmabuf
*pcmd
;
7144 uint32_t els_command
= 0;
7146 uint32_t remote_ID
= 0xffffffff;
7147 LIST_HEAD(abort_list
);
7150 timeout
= (uint32_t)(phba
->fc_ratov
<< 1);
7152 pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
7153 if ((phba
->pport
->load_flag
& FC_UNLOADING
))
7155 spin_lock_irq(&phba
->hbalock
);
7156 if (phba
->sli_rev
== LPFC_SLI_REV4
)
7157 spin_lock(&pring
->ring_lock
);
7159 if ((phba
->pport
->load_flag
& FC_UNLOADING
)) {
7160 if (phba
->sli_rev
== LPFC_SLI_REV4
)
7161 spin_unlock(&pring
->ring_lock
);
7162 spin_unlock_irq(&phba
->hbalock
);
7166 list_for_each_entry_safe(piocb
, tmp_iocb
, &pring
->txcmplq
, list
) {
7169 if ((piocb
->iocb_flag
& LPFC_IO_LIBDFC
) != 0 ||
7170 piocb
->iocb
.ulpCommand
== CMD_ABORT_XRI_CN
||
7171 piocb
->iocb
.ulpCommand
== CMD_CLOSE_XRI_CN
)
7174 if (piocb
->vport
!= vport
)
7177 pcmd
= (struct lpfc_dmabuf
*) piocb
->context2
;
7179 els_command
= *(uint32_t *) (pcmd
->virt
);
7181 if (els_command
== ELS_CMD_FARP
||
7182 els_command
== ELS_CMD_FARPR
||
7183 els_command
== ELS_CMD_FDISC
)
7186 if (piocb
->drvrTimeout
> 0) {
7187 if (piocb
->drvrTimeout
>= timeout
)
7188 piocb
->drvrTimeout
-= timeout
;
7190 piocb
->drvrTimeout
= 0;
7194 remote_ID
= 0xffffffff;
7195 if (cmd
->ulpCommand
!= CMD_GEN_REQUEST64_CR
)
7196 remote_ID
= cmd
->un
.elsreq64
.remoteID
;
7198 struct lpfc_nodelist
*ndlp
;
7199 ndlp
= __lpfc_findnode_rpi(vport
, cmd
->ulpContext
);
7200 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
))
7201 remote_ID
= ndlp
->nlp_DID
;
7203 list_add_tail(&piocb
->dlist
, &abort_list
);
7205 if (phba
->sli_rev
== LPFC_SLI_REV4
)
7206 spin_unlock(&pring
->ring_lock
);
7207 spin_unlock_irq(&phba
->hbalock
);
7209 list_for_each_entry_safe(piocb
, tmp_iocb
, &abort_list
, dlist
) {
7211 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
7212 "0127 ELS timeout Data: x%x x%x x%x "
7213 "x%x\n", els_command
,
7214 remote_ID
, cmd
->ulpCommand
, cmd
->ulpIoTag
);
7215 spin_lock_irq(&phba
->hbalock
);
7216 list_del_init(&piocb
->dlist
);
7217 lpfc_sli_issue_abort_iotag(phba
, pring
, piocb
);
7218 spin_unlock_irq(&phba
->hbalock
);
7221 if (!list_empty(&phba
->sli
.ring
[LPFC_ELS_RING
].txcmplq
))
7222 if (!(phba
->pport
->load_flag
& FC_UNLOADING
))
7223 mod_timer(&vport
->els_tmofunc
,
7224 jiffies
+ msecs_to_jiffies(1000 * timeout
));
7228 * lpfc_els_flush_cmd - Clean up the outstanding els commands to a vport
7229 * @vport: pointer to a host virtual N_Port data structure.
7231 * This routine is used to clean up all the outstanding ELS commands on a
7232 * @vport. It first aborts the @vport by invoking lpfc_fabric_abort_vport()
7233 * routine. After that, it walks the ELS transmit queue to remove all the
7234 * IOCBs with the @vport other than the QUE_RING and ABORT/CLOSE IOCBs. For
7235 * the IOCBs with a non-NULL completion callback function, the callback
7236 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and
7237 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs with a NULL completion
7238 * callback function, the IOCB will simply be released. Finally, it walks
7239 * the ELS transmit completion queue to issue an abort IOCB to any transmit
7240 * completion queue IOCB that is associated with the @vport and is not
7241 * an IOCB from libdfc (i.e., the management plane IOCBs that are not
7242 * part of the discovery state machine) out to HBA by invoking the
7243 * lpfc_sli_issue_abort_iotag() routine. Note that this function issues the
7244 * abort IOCB to any transmit completion queueed IOCB, it does not guarantee
7245 * the IOCBs are aborted when this function returns.
7248 lpfc_els_flush_cmd(struct lpfc_vport
*vport
)
7250 LIST_HEAD(abort_list
);
7251 struct lpfc_hba
*phba
= vport
->phba
;
7252 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
7253 struct lpfc_iocbq
*tmp_iocb
, *piocb
;
7256 lpfc_fabric_abort_vport(vport
);
7258 * For SLI3, only the hbalock is required. But SLI4 needs to coordinate
7259 * with the ring insert operation. Because lpfc_sli_issue_abort_iotag
7260 * ultimately grabs the ring_lock, the driver must splice the list into
7261 * a working list and release the locks before calling the abort.
7263 spin_lock_irq(&phba
->hbalock
);
7264 if (phba
->sli_rev
== LPFC_SLI_REV4
)
7265 spin_lock(&pring
->ring_lock
);
7267 list_for_each_entry_safe(piocb
, tmp_iocb
, &pring
->txcmplq
, list
) {
7268 if (piocb
->iocb_flag
& LPFC_IO_LIBDFC
)
7271 if (piocb
->vport
!= vport
)
7273 list_add_tail(&piocb
->dlist
, &abort_list
);
7275 if (phba
->sli_rev
== LPFC_SLI_REV4
)
7276 spin_unlock(&pring
->ring_lock
);
7277 spin_unlock_irq(&phba
->hbalock
);
7278 /* Abort each iocb on the aborted list and remove the dlist links. */
7279 list_for_each_entry_safe(piocb
, tmp_iocb
, &abort_list
, dlist
) {
7280 spin_lock_irq(&phba
->hbalock
);
7281 list_del_init(&piocb
->dlist
);
7282 lpfc_sli_issue_abort_iotag(phba
, pring
, piocb
);
7283 spin_unlock_irq(&phba
->hbalock
);
7285 if (!list_empty(&abort_list
))
7286 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
7287 "3387 abort list for txq not empty\n");
7288 INIT_LIST_HEAD(&abort_list
);
7290 spin_lock_irq(&phba
->hbalock
);
7291 if (phba
->sli_rev
== LPFC_SLI_REV4
)
7292 spin_lock(&pring
->ring_lock
);
7294 list_for_each_entry_safe(piocb
, tmp_iocb
, &pring
->txq
, list
) {
7297 if (piocb
->iocb_flag
& LPFC_IO_LIBDFC
) {
7301 /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */
7302 if (cmd
->ulpCommand
== CMD_QUE_RING_BUF_CN
||
7303 cmd
->ulpCommand
== CMD_QUE_RING_BUF64_CN
||
7304 cmd
->ulpCommand
== CMD_CLOSE_XRI_CN
||
7305 cmd
->ulpCommand
== CMD_ABORT_XRI_CN
)
7308 if (piocb
->vport
!= vport
)
7311 list_del_init(&piocb
->list
);
7312 list_add_tail(&piocb
->list
, &abort_list
);
7314 if (phba
->sli_rev
== LPFC_SLI_REV4
)
7315 spin_unlock(&pring
->ring_lock
);
7316 spin_unlock_irq(&phba
->hbalock
);
7318 /* Cancell all the IOCBs from the completions list */
7319 lpfc_sli_cancel_iocbs(phba
, &abort_list
,
7320 IOSTAT_LOCAL_REJECT
, IOERR_SLI_ABORTED
);
7326 * lpfc_els_flush_all_cmd - Clean up all the outstanding els commands to a HBA
7327 * @phba: pointer to lpfc hba data structure.
7329 * This routine is used to clean up all the outstanding ELS commands on a
7330 * @phba. It first aborts the @phba by invoking the lpfc_fabric_abort_hba()
7331 * routine. After that, it walks the ELS transmit queue to remove all the
7332 * IOCBs to the @phba other than the QUE_RING and ABORT/CLOSE IOCBs. For
7333 * the IOCBs with the completion callback function associated, the callback
7334 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and
7335 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs without the completion
7336 * callback function associated, the IOCB will simply be released. Finally,
7337 * it walks the ELS transmit completion queue to issue an abort IOCB to any
7338 * transmit completion queue IOCB that is not an IOCB from libdfc (i.e., the
7339 * management plane IOCBs that are not part of the discovery state machine)
7340 * out to HBA by invoking the lpfc_sli_issue_abort_iotag() routine.
7343 lpfc_els_flush_all_cmd(struct lpfc_hba
*phba
)
7345 struct lpfc_vport
*vport
;
7346 list_for_each_entry(vport
, &phba
->port_list
, listentry
)
7347 lpfc_els_flush_cmd(vport
);
7353 * lpfc_send_els_failure_event - Posts an ELS command failure event
7354 * @phba: Pointer to hba context object.
7355 * @cmdiocbp: Pointer to command iocb which reported error.
7356 * @rspiocbp: Pointer to response iocb which reported error.
7358 * This function sends an event when there is an ELS command
7362 lpfc_send_els_failure_event(struct lpfc_hba
*phba
,
7363 struct lpfc_iocbq
*cmdiocbp
,
7364 struct lpfc_iocbq
*rspiocbp
)
7366 struct lpfc_vport
*vport
= cmdiocbp
->vport
;
7367 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
7368 struct lpfc_lsrjt_event lsrjt_event
;
7369 struct lpfc_fabric_event_header fabric_event
;
7371 struct lpfc_nodelist
*ndlp
;
7374 ndlp
= cmdiocbp
->context1
;
7375 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
))
7378 if (rspiocbp
->iocb
.ulpStatus
== IOSTAT_LS_RJT
) {
7379 lsrjt_event
.header
.event_type
= FC_REG_ELS_EVENT
;
7380 lsrjt_event
.header
.subcategory
= LPFC_EVENT_LSRJT_RCV
;
7381 memcpy(lsrjt_event
.header
.wwpn
, &ndlp
->nlp_portname
,
7382 sizeof(struct lpfc_name
));
7383 memcpy(lsrjt_event
.header
.wwnn
, &ndlp
->nlp_nodename
,
7384 sizeof(struct lpfc_name
));
7385 pcmd
= (uint32_t *) (((struct lpfc_dmabuf
*)
7386 cmdiocbp
->context2
)->virt
);
7387 lsrjt_event
.command
= (pcmd
!= NULL
) ? *pcmd
: 0;
7388 stat
.un
.lsRjtError
= be32_to_cpu(rspiocbp
->iocb
.un
.ulpWord
[4]);
7389 lsrjt_event
.reason_code
= stat
.un
.b
.lsRjtRsnCode
;
7390 lsrjt_event
.explanation
= stat
.un
.b
.lsRjtRsnCodeExp
;
7391 fc_host_post_vendor_event(shost
,
7392 fc_get_event_number(),
7393 sizeof(lsrjt_event
),
7394 (char *)&lsrjt_event
,
7398 if ((rspiocbp
->iocb
.ulpStatus
== IOSTAT_NPORT_BSY
) ||
7399 (rspiocbp
->iocb
.ulpStatus
== IOSTAT_FABRIC_BSY
)) {
7400 fabric_event
.event_type
= FC_REG_FABRIC_EVENT
;
7401 if (rspiocbp
->iocb
.ulpStatus
== IOSTAT_NPORT_BSY
)
7402 fabric_event
.subcategory
= LPFC_EVENT_PORT_BUSY
;
7404 fabric_event
.subcategory
= LPFC_EVENT_FABRIC_BUSY
;
7405 memcpy(fabric_event
.wwpn
, &ndlp
->nlp_portname
,
7406 sizeof(struct lpfc_name
));
7407 memcpy(fabric_event
.wwnn
, &ndlp
->nlp_nodename
,
7408 sizeof(struct lpfc_name
));
7409 fc_host_post_vendor_event(shost
,
7410 fc_get_event_number(),
7411 sizeof(fabric_event
),
7412 (char *)&fabric_event
,
7420 * lpfc_send_els_event - Posts unsolicited els event
7421 * @vport: Pointer to vport object.
7422 * @ndlp: Pointer FC node object.
7423 * @cmd: ELS command code.
7425 * This function posts an event when there is an incoming
7426 * unsolicited ELS command.
7429 lpfc_send_els_event(struct lpfc_vport
*vport
,
7430 struct lpfc_nodelist
*ndlp
,
7433 struct lpfc_els_event_header
*els_data
= NULL
;
7434 struct lpfc_logo_event
*logo_data
= NULL
;
7435 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
7437 if (*payload
== ELS_CMD_LOGO
) {
7438 logo_data
= kmalloc(sizeof(struct lpfc_logo_event
), GFP_KERNEL
);
7440 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
7441 "0148 Failed to allocate memory "
7442 "for LOGO event\n");
7445 els_data
= &logo_data
->header
;
7447 els_data
= kmalloc(sizeof(struct lpfc_els_event_header
),
7450 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
7451 "0149 Failed to allocate memory "
7456 els_data
->event_type
= FC_REG_ELS_EVENT
;
7459 els_data
->subcategory
= LPFC_EVENT_PLOGI_RCV
;
7462 els_data
->subcategory
= LPFC_EVENT_PRLO_RCV
;
7465 els_data
->subcategory
= LPFC_EVENT_ADISC_RCV
;
7468 els_data
->subcategory
= LPFC_EVENT_LOGO_RCV
;
7469 /* Copy the WWPN in the LOGO payload */
7470 memcpy(logo_data
->logo_wwpn
, &payload
[2],
7471 sizeof(struct lpfc_name
));
7477 memcpy(els_data
->wwpn
, &ndlp
->nlp_portname
, sizeof(struct lpfc_name
));
7478 memcpy(els_data
->wwnn
, &ndlp
->nlp_nodename
, sizeof(struct lpfc_name
));
7479 if (*payload
== ELS_CMD_LOGO
) {
7480 fc_host_post_vendor_event(shost
,
7481 fc_get_event_number(),
7482 sizeof(struct lpfc_logo_event
),
7487 fc_host_post_vendor_event(shost
,
7488 fc_get_event_number(),
7489 sizeof(struct lpfc_els_event_header
),
7500 * lpfc_els_unsol_buffer - Process an unsolicited event data buffer
7501 * @phba: pointer to lpfc hba data structure.
7502 * @pring: pointer to a SLI ring.
7503 * @vport: pointer to a host virtual N_Port data structure.
7504 * @elsiocb: pointer to lpfc els command iocb data structure.
7506 * This routine is used for processing the IOCB associated with a unsolicited
7507 * event. It first determines whether there is an existing ndlp that matches
7508 * the DID from the unsolicited IOCB. If not, it will create a new one with
7509 * the DID from the unsolicited IOCB. The ELS command from the unsolicited
7510 * IOCB is then used to invoke the proper routine and to set up proper state
7511 * of the discovery state machine.
7514 lpfc_els_unsol_buffer(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
7515 struct lpfc_vport
*vport
, struct lpfc_iocbq
*elsiocb
)
7517 struct Scsi_Host
*shost
;
7518 struct lpfc_nodelist
*ndlp
;
7521 uint32_t cmd
, did
, newnode
;
7522 uint8_t rjt_exp
, rjt_err
= 0;
7523 IOCB_t
*icmd
= &elsiocb
->iocb
;
7525 if (!vport
|| !(elsiocb
->context2
))
7529 payload
= ((struct lpfc_dmabuf
*)elsiocb
->context2
)->virt
;
7531 if ((phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
) == 0)
7532 lpfc_post_buffer(phba
, pring
, 1);
7534 did
= icmd
->un
.rcvels
.remoteID
;
7535 if (icmd
->ulpStatus
) {
7536 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7537 "RCV Unsol ELS: status:x%x/x%x did:x%x",
7538 icmd
->ulpStatus
, icmd
->un
.ulpWord
[4], did
);
7542 /* Check to see if link went down during discovery */
7543 if (lpfc_els_chk_latt(vport
))
7546 /* Ignore traffic received during vport shutdown. */
7547 if (vport
->load_flag
& FC_UNLOADING
)
7550 /* If NPort discovery is delayed drop incoming ELS */
7551 if ((vport
->fc_flag
& FC_DISC_DELAYED
) &&
7552 (cmd
!= ELS_CMD_PLOGI
))
7555 ndlp
= lpfc_findnode_did(vport
, did
);
7557 /* Cannot find existing Fabric ndlp, so allocate a new one */
7558 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
7562 lpfc_nlp_init(vport
, ndlp
, did
);
7563 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
7565 if ((did
& Fabric_DID_MASK
) == Fabric_DID_MASK
)
7566 ndlp
->nlp_type
|= NLP_FABRIC
;
7567 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
7568 ndlp
= lpfc_enable_node(vport
, ndlp
,
7569 NLP_STE_UNUSED_NODE
);
7572 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
7574 if ((did
& Fabric_DID_MASK
) == Fabric_DID_MASK
)
7575 ndlp
->nlp_type
|= NLP_FABRIC
;
7576 } else if (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
) {
7577 /* This is similar to the new node path */
7578 ndlp
= lpfc_nlp_get(ndlp
);
7581 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
7585 phba
->fc_stat
.elsRcvFrame
++;
7588 * Do not process any unsolicited ELS commands
7589 * if the ndlp is in DEV_LOSS
7591 shost
= lpfc_shost_from_vport(vport
);
7592 spin_lock_irq(shost
->host_lock
);
7593 if (ndlp
->nlp_flag
& NLP_IN_DEV_LOSS
) {
7594 spin_unlock_irq(shost
->host_lock
);
7597 spin_unlock_irq(shost
->host_lock
);
7599 elsiocb
->context1
= lpfc_nlp_get(ndlp
);
7600 elsiocb
->vport
= vport
;
7602 if ((cmd
& ELS_CMD_MASK
) == ELS_CMD_RSCN
) {
7603 cmd
&= ELS_CMD_MASK
;
7605 /* ELS command <elsCmd> received from NPORT <did> */
7606 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
7607 "0112 ELS command x%x received from NPORT x%x "
7608 "Data: x%x x%x x%x x%x\n",
7609 cmd
, did
, vport
->port_state
, vport
->fc_flag
,
7610 vport
->fc_myDID
, vport
->fc_prevDID
);
7612 /* reject till our FLOGI completes */
7613 if ((vport
->port_state
< LPFC_FABRIC_CFG_LINK
) &&
7614 (cmd
!= ELS_CMD_FLOGI
)) {
7615 rjt_err
= LSRJT_LOGICAL_BSY
;
7616 rjt_exp
= LSEXP_NOTHING_MORE
;
7622 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7623 "RCV PLOGI: did:x%x/ste:x%x flg:x%x",
7624 did
, vport
->port_state
, ndlp
->nlp_flag
);
7626 phba
->fc_stat
.elsRcvPLOGI
++;
7627 ndlp
= lpfc_plogi_confirm_nport(phba
, payload
, ndlp
);
7628 if (phba
->sli_rev
== LPFC_SLI_REV4
&&
7629 (phba
->pport
->fc_flag
& FC_PT2PT
)) {
7630 vport
->fc_prevDID
= vport
->fc_myDID
;
7631 /* Our DID needs to be updated before registering
7632 * the vfi. This is done in lpfc_rcv_plogi but
7633 * that is called after the reg_vfi.
7635 vport
->fc_myDID
= elsiocb
->iocb
.un
.rcvels
.parmRo
;
7636 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
7637 "3312 Remote port assigned DID x%x "
7638 "%x\n", vport
->fc_myDID
,
7642 lpfc_send_els_event(vport
, ndlp
, payload
);
7644 /* If Nport discovery is delayed, reject PLOGIs */
7645 if (vport
->fc_flag
& FC_DISC_DELAYED
) {
7646 rjt_err
= LSRJT_UNABLE_TPC
;
7647 rjt_exp
= LSEXP_NOTHING_MORE
;
7651 if (vport
->port_state
< LPFC_DISC_AUTH
) {
7652 if (!(phba
->pport
->fc_flag
& FC_PT2PT
) ||
7653 (phba
->pport
->fc_flag
& FC_PT2PT_PLOGI
)) {
7654 rjt_err
= LSRJT_UNABLE_TPC
;
7655 rjt_exp
= LSEXP_NOTHING_MORE
;
7660 spin_lock_irq(shost
->host_lock
);
7661 ndlp
->nlp_flag
&= ~NLP_TARGET_REMOVE
;
7662 spin_unlock_irq(shost
->host_lock
);
7664 lpfc_disc_state_machine(vport
, ndlp
, elsiocb
,
7669 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7670 "RCV FLOGI: did:x%x/ste:x%x flg:x%x",
7671 did
, vport
->port_state
, ndlp
->nlp_flag
);
7673 phba
->fc_stat
.elsRcvFLOGI
++;
7674 lpfc_els_rcv_flogi(vport
, elsiocb
, ndlp
);
7679 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7680 "RCV LOGO: did:x%x/ste:x%x flg:x%x",
7681 did
, vport
->port_state
, ndlp
->nlp_flag
);
7683 phba
->fc_stat
.elsRcvLOGO
++;
7684 lpfc_send_els_event(vport
, ndlp
, payload
);
7685 if (vport
->port_state
< LPFC_DISC_AUTH
) {
7686 rjt_err
= LSRJT_UNABLE_TPC
;
7687 rjt_exp
= LSEXP_NOTHING_MORE
;
7690 lpfc_disc_state_machine(vport
, ndlp
, elsiocb
, NLP_EVT_RCV_LOGO
);
7693 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7694 "RCV PRLO: did:x%x/ste:x%x flg:x%x",
7695 did
, vport
->port_state
, ndlp
->nlp_flag
);
7697 phba
->fc_stat
.elsRcvPRLO
++;
7698 lpfc_send_els_event(vport
, ndlp
, payload
);
7699 if (vport
->port_state
< LPFC_DISC_AUTH
) {
7700 rjt_err
= LSRJT_UNABLE_TPC
;
7701 rjt_exp
= LSEXP_NOTHING_MORE
;
7704 lpfc_disc_state_machine(vport
, ndlp
, elsiocb
, NLP_EVT_RCV_PRLO
);
7707 phba
->fc_stat
.elsRcvLCB
++;
7708 lpfc_els_rcv_lcb(vport
, elsiocb
, ndlp
);
7711 phba
->fc_stat
.elsRcvRDP
++;
7712 lpfc_els_rcv_rdp(vport
, elsiocb
, ndlp
);
7715 phba
->fc_stat
.elsRcvRSCN
++;
7716 lpfc_els_rcv_rscn(vport
, elsiocb
, ndlp
);
7721 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7722 "RCV ADISC: did:x%x/ste:x%x flg:x%x",
7723 did
, vport
->port_state
, ndlp
->nlp_flag
);
7725 lpfc_send_els_event(vport
, ndlp
, payload
);
7726 phba
->fc_stat
.elsRcvADISC
++;
7727 if (vport
->port_state
< LPFC_DISC_AUTH
) {
7728 rjt_err
= LSRJT_UNABLE_TPC
;
7729 rjt_exp
= LSEXP_NOTHING_MORE
;
7732 lpfc_disc_state_machine(vport
, ndlp
, elsiocb
,
7736 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7737 "RCV PDISC: did:x%x/ste:x%x flg:x%x",
7738 did
, vport
->port_state
, ndlp
->nlp_flag
);
7740 phba
->fc_stat
.elsRcvPDISC
++;
7741 if (vport
->port_state
< LPFC_DISC_AUTH
) {
7742 rjt_err
= LSRJT_UNABLE_TPC
;
7743 rjt_exp
= LSEXP_NOTHING_MORE
;
7746 lpfc_disc_state_machine(vport
, ndlp
, elsiocb
,
7750 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7751 "RCV FARPR: did:x%x/ste:x%x flg:x%x",
7752 did
, vport
->port_state
, ndlp
->nlp_flag
);
7754 phba
->fc_stat
.elsRcvFARPR
++;
7755 lpfc_els_rcv_farpr(vport
, elsiocb
, ndlp
);
7758 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7759 "RCV FARP: did:x%x/ste:x%x flg:x%x",
7760 did
, vport
->port_state
, ndlp
->nlp_flag
);
7762 phba
->fc_stat
.elsRcvFARP
++;
7763 lpfc_els_rcv_farp(vport
, elsiocb
, ndlp
);
7766 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7767 "RCV FAN: did:x%x/ste:x%x flg:x%x",
7768 did
, vport
->port_state
, ndlp
->nlp_flag
);
7770 phba
->fc_stat
.elsRcvFAN
++;
7771 lpfc_els_rcv_fan(vport
, elsiocb
, ndlp
);
7774 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7775 "RCV PRLI: did:x%x/ste:x%x flg:x%x",
7776 did
, vport
->port_state
, ndlp
->nlp_flag
);
7778 phba
->fc_stat
.elsRcvPRLI
++;
7779 if (vport
->port_state
< LPFC_DISC_AUTH
) {
7780 rjt_err
= LSRJT_UNABLE_TPC
;
7781 rjt_exp
= LSEXP_NOTHING_MORE
;
7784 lpfc_disc_state_machine(vport
, ndlp
, elsiocb
, NLP_EVT_RCV_PRLI
);
7787 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7788 "RCV LIRR: did:x%x/ste:x%x flg:x%x",
7789 did
, vport
->port_state
, ndlp
->nlp_flag
);
7791 phba
->fc_stat
.elsRcvLIRR
++;
7792 lpfc_els_rcv_lirr(vport
, elsiocb
, ndlp
);
7797 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7798 "RCV RLS: did:x%x/ste:x%x flg:x%x",
7799 did
, vport
->port_state
, ndlp
->nlp_flag
);
7801 phba
->fc_stat
.elsRcvRLS
++;
7802 lpfc_els_rcv_rls(vport
, elsiocb
, ndlp
);
7807 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7808 "RCV RPS: did:x%x/ste:x%x flg:x%x",
7809 did
, vport
->port_state
, ndlp
->nlp_flag
);
7811 phba
->fc_stat
.elsRcvRPS
++;
7812 lpfc_els_rcv_rps(vport
, elsiocb
, ndlp
);
7817 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7818 "RCV RPL: did:x%x/ste:x%x flg:x%x",
7819 did
, vport
->port_state
, ndlp
->nlp_flag
);
7821 phba
->fc_stat
.elsRcvRPL
++;
7822 lpfc_els_rcv_rpl(vport
, elsiocb
, ndlp
);
7827 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7828 "RCV RNID: did:x%x/ste:x%x flg:x%x",
7829 did
, vport
->port_state
, ndlp
->nlp_flag
);
7831 phba
->fc_stat
.elsRcvRNID
++;
7832 lpfc_els_rcv_rnid(vport
, elsiocb
, ndlp
);
7837 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7838 "RCV RTV: did:x%x/ste:x%x flg:x%x",
7839 did
, vport
->port_state
, ndlp
->nlp_flag
);
7840 phba
->fc_stat
.elsRcvRTV
++;
7841 lpfc_els_rcv_rtv(vport
, elsiocb
, ndlp
);
7846 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7847 "RCV RRQ: did:x%x/ste:x%x flg:x%x",
7848 did
, vport
->port_state
, ndlp
->nlp_flag
);
7850 phba
->fc_stat
.elsRcvRRQ
++;
7851 lpfc_els_rcv_rrq(vport
, elsiocb
, ndlp
);
7856 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7857 "RCV ECHO: did:x%x/ste:x%x flg:x%x",
7858 did
, vport
->port_state
, ndlp
->nlp_flag
);
7860 phba
->fc_stat
.elsRcvECHO
++;
7861 lpfc_els_rcv_echo(vport
, elsiocb
, ndlp
);
7866 /* receive this due to exchange closed */
7867 rjt_err
= LSRJT_UNABLE_TPC
;
7868 rjt_exp
= LSEXP_INVALID_OX_RX
;
7871 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7872 "RCV ELS cmd: cmd:x%x did:x%x/ste:x%x",
7873 cmd
, did
, vport
->port_state
);
7875 /* Unsupported ELS command, reject */
7876 rjt_err
= LSRJT_CMD_UNSUPPORTED
;
7877 rjt_exp
= LSEXP_NOTHING_MORE
;
7879 /* Unknown ELS command <elsCmd> received from NPORT <did> */
7880 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
7881 "0115 Unknown ELS command x%x "
7882 "received from NPORT x%x\n", cmd
, did
);
7889 /* check if need to LS_RJT received ELS cmd */
7891 memset(&stat
, 0, sizeof(stat
));
7892 stat
.un
.b
.lsRjtRsnCode
= rjt_err
;
7893 stat
.un
.b
.lsRjtRsnCodeExp
= rjt_exp
;
7894 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, elsiocb
, ndlp
,
7898 lpfc_nlp_put(elsiocb
->context1
);
7899 elsiocb
->context1
= NULL
;
7903 if (vport
&& !(vport
->load_flag
& FC_UNLOADING
))
7904 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
7905 "0111 Dropping received ELS cmd "
7906 "Data: x%x x%x x%x\n",
7907 icmd
->ulpStatus
, icmd
->un
.ulpWord
[4], icmd
->ulpTimeout
);
7908 phba
->fc_stat
.elsRcvDrop
++;
7912 * lpfc_els_unsol_event - Process an unsolicited event from an els sli ring
7913 * @phba: pointer to lpfc hba data structure.
7914 * @pring: pointer to a SLI ring.
7915 * @elsiocb: pointer to lpfc els iocb data structure.
7917 * This routine is used to process an unsolicited event received from a SLI
7918 * (Service Level Interface) ring. The actual processing of the data buffer
7919 * associated with the unsolicited event is done by invoking the routine
7920 * lpfc_els_unsol_buffer() after properly set up the iocb buffer from the
7921 * SLI ring on which the unsolicited event was received.
7924 lpfc_els_unsol_event(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
7925 struct lpfc_iocbq
*elsiocb
)
7927 struct lpfc_vport
*vport
= phba
->pport
;
7928 IOCB_t
*icmd
= &elsiocb
->iocb
;
7930 struct lpfc_dmabuf
*bdeBuf1
= elsiocb
->context2
;
7931 struct lpfc_dmabuf
*bdeBuf2
= elsiocb
->context3
;
7933 elsiocb
->context1
= NULL
;
7934 elsiocb
->context2
= NULL
;
7935 elsiocb
->context3
= NULL
;
7937 if (icmd
->ulpStatus
== IOSTAT_NEED_BUFFER
) {
7938 lpfc_sli_hbqbuf_add_hbqs(phba
, LPFC_ELS_HBQ
);
7939 } else if (icmd
->ulpStatus
== IOSTAT_LOCAL_REJECT
&&
7940 (icmd
->un
.ulpWord
[4] & IOERR_PARAM_MASK
) ==
7941 IOERR_RCV_BUFFER_WAITING
) {
7942 phba
->fc_stat
.NoRcvBuf
++;
7943 /* Not enough posted buffers; Try posting more buffers */
7944 if (!(phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
))
7945 lpfc_post_buffer(phba
, pring
, 0);
7949 if ((phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
7950 (icmd
->ulpCommand
== CMD_IOCB_RCV_ELS64_CX
||
7951 icmd
->ulpCommand
== CMD_IOCB_RCV_SEQ64_CX
)) {
7952 if (icmd
->unsli3
.rcvsli3
.vpi
== 0xffff)
7953 vport
= phba
->pport
;
7955 vport
= lpfc_find_vport_by_vpid(phba
,
7956 icmd
->unsli3
.rcvsli3
.vpi
);
7959 /* If there are no BDEs associated
7960 * with this IOCB, there is nothing to do.
7962 if (icmd
->ulpBdeCount
== 0)
7965 /* type of ELS cmd is first 32bit word
7968 if (phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
) {
7969 elsiocb
->context2
= bdeBuf1
;
7971 paddr
= getPaddr(icmd
->un
.cont64
[0].addrHigh
,
7972 icmd
->un
.cont64
[0].addrLow
);
7973 elsiocb
->context2
= lpfc_sli_ringpostbuf_get(phba
, pring
,
7977 lpfc_els_unsol_buffer(phba
, pring
, vport
, elsiocb
);
7979 * The different unsolicited event handlers would tell us
7980 * if they are done with "mp" by setting context2 to NULL.
7982 if (elsiocb
->context2
) {
7983 lpfc_in_buf_free(phba
, (struct lpfc_dmabuf
*)elsiocb
->context2
);
7984 elsiocb
->context2
= NULL
;
7987 /* RCV_ELS64_CX provide for 2 BDEs - process 2nd if included */
7988 if ((phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
) &&
7989 icmd
->ulpBdeCount
== 2) {
7990 elsiocb
->context2
= bdeBuf2
;
7991 lpfc_els_unsol_buffer(phba
, pring
, vport
, elsiocb
);
7992 /* free mp if we are done with it */
7993 if (elsiocb
->context2
) {
7994 lpfc_in_buf_free(phba
, elsiocb
->context2
);
7995 elsiocb
->context2
= NULL
;
8001 lpfc_start_fdmi(struct lpfc_vport
*vport
)
8003 struct lpfc_hba
*phba
= vport
->phba
;
8004 struct lpfc_nodelist
*ndlp
;
8006 /* If this is the first time, allocate an ndlp and initialize
8007 * it. Otherwise, make sure the node is enabled and then do the
8010 ndlp
= lpfc_findnode_did(vport
, FDMI_DID
);
8012 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
8014 lpfc_nlp_init(vport
, ndlp
, FDMI_DID
);
8015 ndlp
->nlp_type
|= NLP_FABRIC
;
8020 if (!NLP_CHK_NODE_ACT(ndlp
))
8021 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_NPR_NODE
);
8024 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_PLOGI_ISSUE
);
8025 lpfc_issue_els_plogi(vport
, ndlp
->nlp_DID
, 0);
8030 * lpfc_do_scr_ns_plogi - Issue a plogi to the name server for scr
8031 * @phba: pointer to lpfc hba data structure.
8032 * @vport: pointer to a virtual N_Port data structure.
8034 * This routine issues a Port Login (PLOGI) to the Name Server with
8035 * State Change Request (SCR) for a @vport. This routine will create an
8036 * ndlp for the Name Server associated to the @vport if such node does
8037 * not already exist. The PLOGI to Name Server is issued by invoking the
8038 * lpfc_issue_els_plogi() routine. If Fabric-Device Management Interface
8039 * (FDMI) is configured to the @vport, a FDMI node will be created and
8040 * the PLOGI to FDMI is issued by invoking lpfc_issue_els_plogi() routine.
8043 lpfc_do_scr_ns_plogi(struct lpfc_hba
*phba
, struct lpfc_vport
*vport
)
8045 struct lpfc_nodelist
*ndlp
;
8046 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
8049 * If lpfc_delay_discovery parameter is set and the clean address
8050 * bit is cleared and fc fabric parameters chenged, delay FC NPort
8053 spin_lock_irq(shost
->host_lock
);
8054 if (vport
->fc_flag
& FC_DISC_DELAYED
) {
8055 spin_unlock_irq(shost
->host_lock
);
8056 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
,
8057 "3334 Delay fc port discovery for %d seconds\n",
8059 mod_timer(&vport
->delayed_disc_tmo
,
8060 jiffies
+ msecs_to_jiffies(1000 * phba
->fc_ratov
));
8063 spin_unlock_irq(shost
->host_lock
);
8065 ndlp
= lpfc_findnode_did(vport
, NameServer_DID
);
8067 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
8069 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
8070 lpfc_disc_start(vport
);
8073 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
8074 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
8075 "0251 NameServer login: no memory\n");
8078 lpfc_nlp_init(vport
, ndlp
, NameServer_DID
);
8079 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
8080 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_UNUSED_NODE
);
8082 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
8083 lpfc_disc_start(vport
);
8086 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
8087 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
8088 "0348 NameServer login: node freed\n");
8092 ndlp
->nlp_type
|= NLP_FABRIC
;
8094 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_PLOGI_ISSUE
);
8096 if (lpfc_issue_els_plogi(vport
, ndlp
->nlp_DID
, 0)) {
8097 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
8098 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
8099 "0252 Cannot issue NameServer login\n");
8103 if ((phba
->cfg_enable_SmartSAN
||
8104 (phba
->cfg_fdmi_on
== LPFC_FDMI_SUPPORT
)) &&
8105 (vport
->load_flag
& FC_ALLOW_FDMI
))
8106 lpfc_start_fdmi(vport
);
8110 * lpfc_cmpl_reg_new_vport - Completion callback function to register new vport
8111 * @phba: pointer to lpfc hba data structure.
8112 * @pmb: pointer to the driver internal queue element for mailbox command.
8114 * This routine is the completion callback function to register new vport
8115 * mailbox command. If the new vport mailbox command completes successfully,
8116 * the fabric registration login shall be performed on physical port (the
8117 * new vport created is actually a physical port, with VPI 0) or the port
8118 * login to Name Server for State Change Request (SCR) will be performed
8119 * on virtual port (real virtual port, with VPI greater than 0).
8122 lpfc_cmpl_reg_new_vport(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
8124 struct lpfc_vport
*vport
= pmb
->vport
;
8125 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
8126 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
8127 MAILBOX_t
*mb
= &pmb
->u
.mb
;
8130 spin_lock_irq(shost
->host_lock
);
8131 vport
->fc_flag
&= ~FC_VPORT_NEEDS_REG_VPI
;
8132 spin_unlock_irq(shost
->host_lock
);
8134 if (mb
->mbxStatus
) {
8135 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
8136 "0915 Register VPI failed : Status: x%x"
8137 " upd bit: x%x \n", mb
->mbxStatus
,
8138 mb
->un
.varRegVpi
.upd
);
8139 if (phba
->sli_rev
== LPFC_SLI_REV4
&&
8140 mb
->un
.varRegVpi
.upd
)
8141 goto mbox_err_exit
;
8143 switch (mb
->mbxStatus
) {
8144 case 0x11: /* unsupported feature */
8145 case 0x9603: /* max_vpi exceeded */
8146 case 0x9602: /* Link event since CLEAR_LA */
8147 /* giving up on vport registration */
8148 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
8149 spin_lock_irq(shost
->host_lock
);
8150 vport
->fc_flag
&= ~(FC_FABRIC
| FC_PUBLIC_LOOP
);
8151 spin_unlock_irq(shost
->host_lock
);
8152 lpfc_can_disctmo(vport
);
8154 /* If reg_vpi fail with invalid VPI status, re-init VPI */
8156 spin_lock_irq(shost
->host_lock
);
8157 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
8158 spin_unlock_irq(shost
->host_lock
);
8159 lpfc_init_vpi(phba
, pmb
, vport
->vpi
);
8161 pmb
->mbox_cmpl
= lpfc_init_vpi_cmpl
;
8162 rc
= lpfc_sli_issue_mbox(phba
, pmb
,
8164 if (rc
== MBX_NOT_FINISHED
) {
8165 lpfc_printf_vlog(vport
,
8167 "2732 Failed to issue INIT_VPI"
8168 " mailbox command\n");
8175 /* Try to recover from this error */
8176 if (phba
->sli_rev
== LPFC_SLI_REV4
)
8177 lpfc_sli4_unreg_all_rpis(vport
);
8178 lpfc_mbx_unreg_vpi(vport
);
8179 spin_lock_irq(shost
->host_lock
);
8180 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
8181 spin_unlock_irq(shost
->host_lock
);
8182 if (vport
->port_type
== LPFC_PHYSICAL_PORT
8183 && !(vport
->fc_flag
& FC_LOGO_RCVD_DID_CHNG
))
8184 lpfc_issue_init_vfi(vport
);
8186 lpfc_initial_fdisc(vport
);
8190 spin_lock_irq(shost
->host_lock
);
8191 vport
->vpi_state
|= LPFC_VPI_REGISTERED
;
8192 spin_unlock_irq(shost
->host_lock
);
8193 if (vport
== phba
->pport
) {
8194 if (phba
->sli_rev
< LPFC_SLI_REV4
)
8195 lpfc_issue_fabric_reglogin(vport
);
8198 * If the physical port is instantiated using
8199 * FDISC, do not start vport discovery.
8201 if (vport
->port_state
!= LPFC_FDISC
)
8202 lpfc_start_fdiscs(phba
);
8203 lpfc_do_scr_ns_plogi(phba
, vport
);
8206 lpfc_do_scr_ns_plogi(phba
, vport
);
8209 /* Now, we decrement the ndlp reference count held for this
8214 mempool_free(pmb
, phba
->mbox_mem_pool
);
8219 * lpfc_register_new_vport - Register a new vport with a HBA
8220 * @phba: pointer to lpfc hba data structure.
8221 * @vport: pointer to a host virtual N_Port data structure.
8222 * @ndlp: pointer to a node-list data structure.
8224 * This routine registers the @vport as a new virtual port with a HBA.
8225 * It is done through a registering vpi mailbox command.
8228 lpfc_register_new_vport(struct lpfc_hba
*phba
, struct lpfc_vport
*vport
,
8229 struct lpfc_nodelist
*ndlp
)
8231 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
8234 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
8236 lpfc_reg_vpi(vport
, mbox
);
8237 mbox
->vport
= vport
;
8238 mbox
->context2
= lpfc_nlp_get(ndlp
);
8239 mbox
->mbox_cmpl
= lpfc_cmpl_reg_new_vport
;
8240 if (lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
)
8241 == MBX_NOT_FINISHED
) {
8242 /* mailbox command not success, decrement ndlp
8243 * reference count for this command
8246 mempool_free(mbox
, phba
->mbox_mem_pool
);
8248 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
8249 "0253 Register VPI: Can't send mbox\n");
8253 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
8254 "0254 Register VPI: no memory\n");
8260 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
8261 spin_lock_irq(shost
->host_lock
);
8262 vport
->fc_flag
&= ~FC_VPORT_NEEDS_REG_VPI
;
8263 spin_unlock_irq(shost
->host_lock
);
8268 * lpfc_cancel_all_vport_retry_delay_timer - Cancel all vport retry delay timer
8269 * @phba: pointer to lpfc hba data structure.
8271 * This routine cancels the retry delay timers to all the vports.
8274 lpfc_cancel_all_vport_retry_delay_timer(struct lpfc_hba
*phba
)
8276 struct lpfc_vport
**vports
;
8277 struct lpfc_nodelist
*ndlp
;
8278 uint32_t link_state
;
8281 /* Treat this failure as linkdown for all vports */
8282 link_state
= phba
->link_state
;
8283 lpfc_linkdown(phba
);
8284 phba
->link_state
= link_state
;
8286 vports
= lpfc_create_vport_work_array(phba
);
8289 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
8290 ndlp
= lpfc_findnode_did(vports
[i
], Fabric_DID
);
8292 lpfc_cancel_retry_delay_tmo(vports
[i
], ndlp
);
8293 lpfc_els_flush_cmd(vports
[i
]);
8295 lpfc_destroy_vport_work_array(phba
, vports
);
8300 * lpfc_retry_pport_discovery - Start timer to retry FLOGI.
8301 * @phba: pointer to lpfc hba data structure.
8303 * This routine abort all pending discovery commands and
8304 * start a timer to retry FLOGI for the physical port
8308 lpfc_retry_pport_discovery(struct lpfc_hba
*phba
)
8310 struct lpfc_nodelist
*ndlp
;
8311 struct Scsi_Host
*shost
;
8313 /* Cancel the all vports retry delay retry timers */
8314 lpfc_cancel_all_vport_retry_delay_timer(phba
);
8316 /* If fabric require FLOGI, then re-instantiate physical login */
8317 ndlp
= lpfc_findnode_did(phba
->pport
, Fabric_DID
);
8321 shost
= lpfc_shost_from_vport(phba
->pport
);
8322 mod_timer(&ndlp
->nlp_delayfunc
, jiffies
+ msecs_to_jiffies(1000));
8323 spin_lock_irq(shost
->host_lock
);
8324 ndlp
->nlp_flag
|= NLP_DELAY_TMO
;
8325 spin_unlock_irq(shost
->host_lock
);
8326 ndlp
->nlp_last_elscmd
= ELS_CMD_FLOGI
;
8327 phba
->pport
->port_state
= LPFC_FLOGI
;
8332 * lpfc_fabric_login_reqd - Check if FLOGI required.
8333 * @phba: pointer to lpfc hba data structure.
8334 * @cmdiocb: pointer to FDISC command iocb.
8335 * @rspiocb: pointer to FDISC response iocb.
8337 * This routine checks if a FLOGI is reguired for FDISC
8341 lpfc_fabric_login_reqd(struct lpfc_hba
*phba
,
8342 struct lpfc_iocbq
*cmdiocb
,
8343 struct lpfc_iocbq
*rspiocb
)
8346 if ((rspiocb
->iocb
.ulpStatus
!= IOSTAT_FABRIC_RJT
) ||
8347 (rspiocb
->iocb
.un
.ulpWord
[4] != RJT_LOGIN_REQUIRED
))
8354 * lpfc_cmpl_els_fdisc - Completion function for fdisc iocb command
8355 * @phba: pointer to lpfc hba data structure.
8356 * @cmdiocb: pointer to lpfc command iocb data structure.
8357 * @rspiocb: pointer to lpfc response iocb data structure.
8359 * This routine is the completion callback function to a Fabric Discover
8360 * (FDISC) ELS command. Since all the FDISC ELS commands are issued
8361 * single threaded, each FDISC completion callback function will reset
8362 * the discovery timer for all vports such that the timers will not get
8363 * unnecessary timeout. The function checks the FDISC IOCB status. If error
8364 * detected, the vport will be set to FC_VPORT_FAILED state. Otherwise,the
8365 * vport will set to FC_VPORT_ACTIVE state. It then checks whether the DID
8366 * assigned to the vport has been changed with the completion of the FDISC
8367 * command. If so, both RPI (Remote Port Index) and VPI (Virtual Port Index)
8368 * are unregistered from the HBA, and then the lpfc_register_new_vport()
8369 * routine is invoked to register new vport with the HBA. Otherwise, the
8370 * lpfc_do_scr_ns_plogi() routine is invoked to issue a PLOGI to the Name
8371 * Server for State Change Request (SCR).
8374 lpfc_cmpl_els_fdisc(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
8375 struct lpfc_iocbq
*rspiocb
)
8377 struct lpfc_vport
*vport
= cmdiocb
->vport
;
8378 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
8379 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) cmdiocb
->context1
;
8380 struct lpfc_nodelist
*np
;
8381 struct lpfc_nodelist
*next_np
;
8382 IOCB_t
*irsp
= &rspiocb
->iocb
;
8383 struct lpfc_iocbq
*piocb
;
8384 struct lpfc_dmabuf
*pcmd
= cmdiocb
->context2
, *prsp
;
8385 struct serv_parm
*sp
;
8386 uint8_t fabric_param_changed
;
8388 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
8389 "0123 FDISC completes. x%x/x%x prevDID: x%x\n",
8390 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
8392 /* Since all FDISCs are being single threaded, we
8393 * must reset the discovery timer for ALL vports
8394 * waiting to send FDISC when one completes.
8396 list_for_each_entry(piocb
, &phba
->fabric_iocb_list
, list
) {
8397 lpfc_set_disctmo(piocb
->vport
);
8400 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
8401 "FDISC cmpl: status:x%x/x%x prevdid:x%x",
8402 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4], vport
->fc_prevDID
);
8404 if (irsp
->ulpStatus
) {
8406 if (lpfc_fabric_login_reqd(phba
, cmdiocb
, rspiocb
)) {
8407 lpfc_retry_pport_discovery(phba
);
8411 /* Check for retry */
8412 if (lpfc_els_retry(phba
, cmdiocb
, rspiocb
))
8415 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
8416 "0126 FDISC failed. (x%x/x%x)\n",
8417 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4]);
8420 spin_lock_irq(shost
->host_lock
);
8421 vport
->fc_flag
&= ~FC_VPORT_CVL_RCVD
;
8422 vport
->fc_flag
&= ~FC_VPORT_LOGO_RCVD
;
8423 vport
->fc_flag
|= FC_FABRIC
;
8424 if (vport
->phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
)
8425 vport
->fc_flag
|= FC_PUBLIC_LOOP
;
8426 spin_unlock_irq(shost
->host_lock
);
8428 vport
->fc_myDID
= irsp
->un
.ulpWord
[4] & Mask_DID
;
8429 lpfc_vport_set_state(vport
, FC_VPORT_ACTIVE
);
8430 prsp
= list_get_first(&pcmd
->list
, struct lpfc_dmabuf
, list
);
8433 sp
= prsp
->virt
+ sizeof(uint32_t);
8434 fabric_param_changed
= lpfc_check_clean_addr_bit(vport
, sp
);
8435 memcpy(&vport
->fabric_portname
, &sp
->portName
,
8436 sizeof(struct lpfc_name
));
8437 memcpy(&vport
->fabric_nodename
, &sp
->nodeName
,
8438 sizeof(struct lpfc_name
));
8439 if (fabric_param_changed
&&
8440 !(vport
->fc_flag
& FC_VPORT_NEEDS_REG_VPI
)) {
8441 /* If our NportID changed, we need to ensure all
8442 * remaining NPORTs get unreg_login'ed so we can
8445 list_for_each_entry_safe(np
, next_np
,
8446 &vport
->fc_nodes
, nlp_listp
) {
8447 if (!NLP_CHK_NODE_ACT(ndlp
) ||
8448 (np
->nlp_state
!= NLP_STE_NPR_NODE
) ||
8449 !(np
->nlp_flag
& NLP_NPR_ADISC
))
8451 spin_lock_irq(shost
->host_lock
);
8452 np
->nlp_flag
&= ~NLP_NPR_ADISC
;
8453 spin_unlock_irq(shost
->host_lock
);
8454 lpfc_unreg_rpi(vport
, np
);
8456 lpfc_cleanup_pending_mbox(vport
);
8458 if (phba
->sli_rev
== LPFC_SLI_REV4
)
8459 lpfc_sli4_unreg_all_rpis(vport
);
8461 lpfc_mbx_unreg_vpi(vport
);
8462 spin_lock_irq(shost
->host_lock
);
8463 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
8464 if (phba
->sli_rev
== LPFC_SLI_REV4
)
8465 vport
->fc_flag
|= FC_VPORT_NEEDS_INIT_VPI
;
8467 vport
->fc_flag
|= FC_LOGO_RCVD_DID_CHNG
;
8468 spin_unlock_irq(shost
->host_lock
);
8469 } else if ((phba
->sli_rev
== LPFC_SLI_REV4
) &&
8470 !(vport
->fc_flag
& FC_VPORT_NEEDS_REG_VPI
)) {
8472 * Driver needs to re-reg VPI in order for f/w
8473 * to update the MAC address.
8475 lpfc_register_new_vport(phba
, vport
, ndlp
);
8479 if (vport
->fc_flag
& FC_VPORT_NEEDS_INIT_VPI
)
8480 lpfc_issue_init_vpi(vport
);
8481 else if (vport
->fc_flag
& FC_VPORT_NEEDS_REG_VPI
)
8482 lpfc_register_new_vport(phba
, vport
, ndlp
);
8484 lpfc_do_scr_ns_plogi(phba
, vport
);
8487 if (vport
->fc_vport
->vport_state
!= FC_VPORT_NO_FABRIC_RSCS
)
8488 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
8489 /* Cancel discovery timer */
8490 lpfc_can_disctmo(vport
);
8493 lpfc_els_free_iocb(phba
, cmdiocb
);
8497 * lpfc_issue_els_fdisc - Issue a fdisc iocb command
8498 * @vport: pointer to a virtual N_Port data structure.
8499 * @ndlp: pointer to a node-list data structure.
8500 * @retry: number of retries to the command IOCB.
8502 * This routine prepares and issues a Fabric Discover (FDISC) IOCB to
8503 * a remote node (@ndlp) off a @vport. It uses the lpfc_issue_fabric_iocb()
8504 * routine to issue the IOCB, which makes sure only one outstanding fabric
8505 * IOCB will be sent off HBA at any given time.
8507 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
8508 * will be incremented by 1 for holding the ndlp and the reference to ndlp
8509 * will be stored into the context1 field of the IOCB for the completion
8510 * callback function to the FDISC ELS command.
8513 * 0 - Successfully issued fdisc iocb command
8514 * 1 - Failed to issue fdisc iocb command
8517 lpfc_issue_els_fdisc(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
8520 struct lpfc_hba
*phba
= vport
->phba
;
8522 struct lpfc_iocbq
*elsiocb
;
8523 struct serv_parm
*sp
;
8526 int did
= ndlp
->nlp_DID
;
8529 vport
->port_state
= LPFC_FDISC
;
8530 vport
->fc_myDID
= 0;
8531 cmdsize
= (sizeof(uint32_t) + sizeof(struct serv_parm
));
8532 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
, did
,
8535 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
8536 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
8537 "0255 Issue FDISC: no IOCB\n");
8541 icmd
= &elsiocb
->iocb
;
8542 icmd
->un
.elsreq64
.myID
= 0;
8543 icmd
->un
.elsreq64
.fl
= 1;
8546 * SLI3 ports require a different context type value than SLI4.
8547 * Catch SLI3 ports here and override the prep.
8549 if (phba
->sli_rev
== LPFC_SLI_REV3
) {
8554 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
8555 *((uint32_t *) (pcmd
)) = ELS_CMD_FDISC
;
8556 pcmd
+= sizeof(uint32_t); /* CSP Word 1 */
8557 memcpy(pcmd
, &vport
->phba
->pport
->fc_sparam
, sizeof(struct serv_parm
));
8558 sp
= (struct serv_parm
*) pcmd
;
8559 /* Setup CSPs accordingly for Fabric */
8560 sp
->cmn
.e_d_tov
= 0;
8561 sp
->cmn
.w2
.r_a_tov
= 0;
8562 sp
->cmn
.virtual_fabric_support
= 0;
8563 sp
->cls1
.classValid
= 0;
8564 sp
->cls2
.seqDelivery
= 1;
8565 sp
->cls3
.seqDelivery
= 1;
8567 pcmd
+= sizeof(uint32_t); /* CSP Word 2 */
8568 pcmd
+= sizeof(uint32_t); /* CSP Word 3 */
8569 pcmd
+= sizeof(uint32_t); /* CSP Word 4 */
8570 pcmd
+= sizeof(uint32_t); /* Port Name */
8571 memcpy(pcmd
, &vport
->fc_portname
, 8);
8572 pcmd
+= sizeof(uint32_t); /* Node Name */
8573 pcmd
+= sizeof(uint32_t); /* Node Name */
8574 memcpy(pcmd
, &vport
->fc_nodename
, 8);
8576 lpfc_set_disctmo(vport
);
8578 phba
->fc_stat
.elsXmitFDISC
++;
8579 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_fdisc
;
8581 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
8582 "Issue FDISC: did:x%x",
8585 rc
= lpfc_issue_fabric_iocb(phba
, elsiocb
);
8586 if (rc
== IOCB_ERROR
) {
8587 lpfc_els_free_iocb(phba
, elsiocb
);
8588 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
8589 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
8590 "0256 Issue FDISC: Cannot send IOCB\n");
8593 lpfc_vport_set_state(vport
, FC_VPORT_INITIALIZING
);
8598 * lpfc_cmpl_els_npiv_logo - Completion function with vport logo
8599 * @phba: pointer to lpfc hba data structure.
8600 * @cmdiocb: pointer to lpfc command iocb data structure.
8601 * @rspiocb: pointer to lpfc response iocb data structure.
8603 * This routine is the completion callback function to the issuing of a LOGO
8604 * ELS command off a vport. It frees the command IOCB and then decrement the
8605 * reference count held on ndlp for this completion function, indicating that
8606 * the reference to the ndlp is no long needed. Note that the
8607 * lpfc_els_free_iocb() routine decrements the ndlp reference held for this
8608 * callback function and an additional explicit ndlp reference decrementation
8609 * will trigger the actual release of the ndlp.
8612 lpfc_cmpl_els_npiv_logo(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
8613 struct lpfc_iocbq
*rspiocb
)
8615 struct lpfc_vport
*vport
= cmdiocb
->vport
;
8617 struct lpfc_nodelist
*ndlp
;
8618 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
8620 ndlp
= (struct lpfc_nodelist
*)cmdiocb
->context1
;
8621 irsp
= &rspiocb
->iocb
;
8622 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
8623 "LOGO npiv cmpl: status:x%x/x%x did:x%x",
8624 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4], irsp
->un
.rcvels
.remoteID
);
8626 lpfc_els_free_iocb(phba
, cmdiocb
);
8627 vport
->unreg_vpi_cmpl
= VPORT_ERROR
;
8629 /* Trigger the release of the ndlp after logo */
8632 /* NPIV LOGO completes to NPort <nlp_DID> */
8633 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
8634 "2928 NPIV LOGO completes to NPort x%x "
8635 "Data: x%x x%x x%x x%x\n",
8636 ndlp
->nlp_DID
, irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
8637 irsp
->ulpTimeout
, vport
->num_disc_nodes
);
8639 if (irsp
->ulpStatus
== IOSTAT_SUCCESS
) {
8640 spin_lock_irq(shost
->host_lock
);
8641 vport
->fc_flag
&= ~FC_NDISC_ACTIVE
;
8642 vport
->fc_flag
&= ~FC_FABRIC
;
8643 spin_unlock_irq(shost
->host_lock
);
8644 lpfc_can_disctmo(vport
);
8649 * lpfc_issue_els_npiv_logo - Issue a logo off a vport
8650 * @vport: pointer to a virtual N_Port data structure.
8651 * @ndlp: pointer to a node-list data structure.
8653 * This routine issues a LOGO ELS command to an @ndlp off a @vport.
8655 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
8656 * will be incremented by 1 for holding the ndlp and the reference to ndlp
8657 * will be stored into the context1 field of the IOCB for the completion
8658 * callback function to the LOGO ELS command.
8661 * 0 - Successfully issued logo off the @vport
8662 * 1 - Failed to issue logo off the @vport
8665 lpfc_issue_els_npiv_logo(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
8667 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
8668 struct lpfc_hba
*phba
= vport
->phba
;
8669 struct lpfc_iocbq
*elsiocb
;
8673 cmdsize
= 2 * sizeof(uint32_t) + sizeof(struct lpfc_name
);
8674 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, 0, ndlp
, ndlp
->nlp_DID
,
8679 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
8680 *((uint32_t *) (pcmd
)) = ELS_CMD_LOGO
;
8681 pcmd
+= sizeof(uint32_t);
8683 /* Fill in LOGO payload */
8684 *((uint32_t *) (pcmd
)) = be32_to_cpu(vport
->fc_myDID
);
8685 pcmd
+= sizeof(uint32_t);
8686 memcpy(pcmd
, &vport
->fc_portname
, sizeof(struct lpfc_name
));
8688 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
8689 "Issue LOGO npiv did:x%x flg:x%x",
8690 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
8692 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_npiv_logo
;
8693 spin_lock_irq(shost
->host_lock
);
8694 ndlp
->nlp_flag
|= NLP_LOGO_SND
;
8695 spin_unlock_irq(shost
->host_lock
);
8696 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) ==
8698 spin_lock_irq(shost
->host_lock
);
8699 ndlp
->nlp_flag
&= ~NLP_LOGO_SND
;
8700 spin_unlock_irq(shost
->host_lock
);
8701 lpfc_els_free_iocb(phba
, elsiocb
);
8708 * lpfc_fabric_block_timeout - Handler function to the fabric block timer
8709 * @ptr: holder for the timer function associated data.
8711 * This routine is invoked by the fabric iocb block timer after
8712 * timeout. It posts the fabric iocb block timeout event by setting the
8713 * WORKER_FABRIC_BLOCK_TMO bit to work port event bitmap and then invokes
8714 * lpfc_worker_wake_up() routine to wake up the worker thread. It is for
8715 * the worker thread to invoke the lpfc_unblock_fabric_iocbs() on the
8716 * posted event WORKER_FABRIC_BLOCK_TMO.
8719 lpfc_fabric_block_timeout(unsigned long ptr
)
8721 struct lpfc_hba
*phba
= (struct lpfc_hba
*) ptr
;
8722 unsigned long iflags
;
8723 uint32_t tmo_posted
;
8725 spin_lock_irqsave(&phba
->pport
->work_port_lock
, iflags
);
8726 tmo_posted
= phba
->pport
->work_port_events
& WORKER_FABRIC_BLOCK_TMO
;
8728 phba
->pport
->work_port_events
|= WORKER_FABRIC_BLOCK_TMO
;
8729 spin_unlock_irqrestore(&phba
->pport
->work_port_lock
, iflags
);
8732 lpfc_worker_wake_up(phba
);
8737 * lpfc_resume_fabric_iocbs - Issue a fabric iocb from driver internal list
8738 * @phba: pointer to lpfc hba data structure.
8740 * This routine issues one fabric iocb from the driver internal list to
8741 * the HBA. It first checks whether it's ready to issue one fabric iocb to
8742 * the HBA (whether there is no outstanding fabric iocb). If so, it shall
8743 * remove one pending fabric iocb from the driver internal list and invokes
8744 * lpfc_sli_issue_iocb() routine to send the fabric iocb to the HBA.
8747 lpfc_resume_fabric_iocbs(struct lpfc_hba
*phba
)
8749 struct lpfc_iocbq
*iocb
;
8750 unsigned long iflags
;
8756 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8757 /* Post any pending iocb to the SLI layer */
8758 if (atomic_read(&phba
->fabric_iocb_count
) == 0) {
8759 list_remove_head(&phba
->fabric_iocb_list
, iocb
, typeof(*iocb
),
8762 /* Increment fabric iocb count to hold the position */
8763 atomic_inc(&phba
->fabric_iocb_count
);
8765 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8767 iocb
->fabric_iocb_cmpl
= iocb
->iocb_cmpl
;
8768 iocb
->iocb_cmpl
= lpfc_cmpl_fabric_iocb
;
8769 iocb
->iocb_flag
|= LPFC_IO_FABRIC
;
8771 lpfc_debugfs_disc_trc(iocb
->vport
, LPFC_DISC_TRC_ELS_CMD
,
8772 "Fabric sched1: ste:x%x",
8773 iocb
->vport
->port_state
, 0, 0);
8775 ret
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, iocb
, 0);
8777 if (ret
== IOCB_ERROR
) {
8778 iocb
->iocb_cmpl
= iocb
->fabric_iocb_cmpl
;
8779 iocb
->fabric_iocb_cmpl
= NULL
;
8780 iocb
->iocb_flag
&= ~LPFC_IO_FABRIC
;
8782 cmd
->ulpStatus
= IOSTAT_LOCAL_REJECT
;
8783 cmd
->un
.ulpWord
[4] = IOERR_SLI_ABORTED
;
8784 iocb
->iocb_cmpl(phba
, iocb
, iocb
);
8786 atomic_dec(&phba
->fabric_iocb_count
);
8795 * lpfc_unblock_fabric_iocbs - Unblock issuing fabric iocb command
8796 * @phba: pointer to lpfc hba data structure.
8798 * This routine unblocks the issuing fabric iocb command. The function
8799 * will clear the fabric iocb block bit and then invoke the routine
8800 * lpfc_resume_fabric_iocbs() to issue one of the pending fabric iocb
8801 * from the driver internal fabric iocb list.
8804 lpfc_unblock_fabric_iocbs(struct lpfc_hba
*phba
)
8806 clear_bit(FABRIC_COMANDS_BLOCKED
, &phba
->bit_flags
);
8808 lpfc_resume_fabric_iocbs(phba
);
8813 * lpfc_block_fabric_iocbs - Block issuing fabric iocb command
8814 * @phba: pointer to lpfc hba data structure.
8816 * This routine blocks the issuing fabric iocb for a specified amount of
8817 * time (currently 100 ms). This is done by set the fabric iocb block bit
8818 * and set up a timeout timer for 100ms. When the block bit is set, no more
8819 * fabric iocb will be issued out of the HBA.
8822 lpfc_block_fabric_iocbs(struct lpfc_hba
*phba
)
8826 blocked
= test_and_set_bit(FABRIC_COMANDS_BLOCKED
, &phba
->bit_flags
);
8827 /* Start a timer to unblock fabric iocbs after 100ms */
8829 mod_timer(&phba
->fabric_block_timer
,
8830 jiffies
+ msecs_to_jiffies(100));
8836 * lpfc_cmpl_fabric_iocb - Completion callback function for fabric iocb
8837 * @phba: pointer to lpfc hba data structure.
8838 * @cmdiocb: pointer to lpfc command iocb data structure.
8839 * @rspiocb: pointer to lpfc response iocb data structure.
8841 * This routine is the callback function that is put to the fabric iocb's
8842 * callback function pointer (iocb->iocb_cmpl). The original iocb's callback
8843 * function pointer has been stored in iocb->fabric_iocb_cmpl. This callback
8844 * function first restores and invokes the original iocb's callback function
8845 * and then invokes the lpfc_resume_fabric_iocbs() routine to issue the next
8846 * fabric bound iocb from the driver internal fabric iocb list onto the wire.
8849 lpfc_cmpl_fabric_iocb(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
8850 struct lpfc_iocbq
*rspiocb
)
8854 if ((cmdiocb
->iocb_flag
& LPFC_IO_FABRIC
) != LPFC_IO_FABRIC
)
8857 switch (rspiocb
->iocb
.ulpStatus
) {
8858 case IOSTAT_NPORT_RJT
:
8859 case IOSTAT_FABRIC_RJT
:
8860 if (rspiocb
->iocb
.un
.ulpWord
[4] & RJT_UNAVAIL_TEMP
) {
8861 lpfc_block_fabric_iocbs(phba
);
8865 case IOSTAT_NPORT_BSY
:
8866 case IOSTAT_FABRIC_BSY
:
8867 lpfc_block_fabric_iocbs(phba
);
8871 stat
.un
.lsRjtError
=
8872 be32_to_cpu(rspiocb
->iocb
.un
.ulpWord
[4]);
8873 if ((stat
.un
.b
.lsRjtRsnCode
== LSRJT_UNABLE_TPC
) ||
8874 (stat
.un
.b
.lsRjtRsnCode
== LSRJT_LOGICAL_BSY
))
8875 lpfc_block_fabric_iocbs(phba
);
8879 if (atomic_read(&phba
->fabric_iocb_count
) == 0)
8882 cmdiocb
->iocb_cmpl
= cmdiocb
->fabric_iocb_cmpl
;
8883 cmdiocb
->fabric_iocb_cmpl
= NULL
;
8884 cmdiocb
->iocb_flag
&= ~LPFC_IO_FABRIC
;
8885 cmdiocb
->iocb_cmpl(phba
, cmdiocb
, rspiocb
);
8887 atomic_dec(&phba
->fabric_iocb_count
);
8888 if (!test_bit(FABRIC_COMANDS_BLOCKED
, &phba
->bit_flags
)) {
8889 /* Post any pending iocbs to HBA */
8890 lpfc_resume_fabric_iocbs(phba
);
8895 * lpfc_issue_fabric_iocb - Issue a fabric iocb command
8896 * @phba: pointer to lpfc hba data structure.
8897 * @iocb: pointer to lpfc command iocb data structure.
8899 * This routine is used as the top-level API for issuing a fabric iocb command
8900 * such as FLOGI and FDISC. To accommodate certain switch fabric, this driver
8901 * function makes sure that only one fabric bound iocb will be outstanding at
8902 * any given time. As such, this function will first check to see whether there
8903 * is already an outstanding fabric iocb on the wire. If so, it will put the
8904 * newly issued iocb onto the driver internal fabric iocb list, waiting to be
8905 * issued later. Otherwise, it will issue the iocb on the wire and update the
8906 * fabric iocb count it indicate that there is one fabric iocb on the wire.
8908 * Note, this implementation has a potential sending out fabric IOCBs out of
8909 * order. The problem is caused by the construction of the "ready" boolen does
8910 * not include the condition that the internal fabric IOCB list is empty. As
8911 * such, it is possible a fabric IOCB issued by this routine might be "jump"
8912 * ahead of the fabric IOCBs in the internal list.
8915 * IOCB_SUCCESS - either fabric iocb put on the list or issued successfully
8916 * IOCB_ERROR - failed to issue fabric iocb
8919 lpfc_issue_fabric_iocb(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocb
)
8921 unsigned long iflags
;
8925 if (atomic_read(&phba
->fabric_iocb_count
) > 1)
8928 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8929 ready
= atomic_read(&phba
->fabric_iocb_count
) == 0 &&
8930 !test_bit(FABRIC_COMANDS_BLOCKED
, &phba
->bit_flags
);
8933 /* Increment fabric iocb count to hold the position */
8934 atomic_inc(&phba
->fabric_iocb_count
);
8935 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8937 iocb
->fabric_iocb_cmpl
= iocb
->iocb_cmpl
;
8938 iocb
->iocb_cmpl
= lpfc_cmpl_fabric_iocb
;
8939 iocb
->iocb_flag
|= LPFC_IO_FABRIC
;
8941 lpfc_debugfs_disc_trc(iocb
->vport
, LPFC_DISC_TRC_ELS_CMD
,
8942 "Fabric sched2: ste:x%x",
8943 iocb
->vport
->port_state
, 0, 0);
8945 ret
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, iocb
, 0);
8947 if (ret
== IOCB_ERROR
) {
8948 iocb
->iocb_cmpl
= iocb
->fabric_iocb_cmpl
;
8949 iocb
->fabric_iocb_cmpl
= NULL
;
8950 iocb
->iocb_flag
&= ~LPFC_IO_FABRIC
;
8951 atomic_dec(&phba
->fabric_iocb_count
);
8954 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8955 list_add_tail(&iocb
->list
, &phba
->fabric_iocb_list
);
8956 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8963 * lpfc_fabric_abort_vport - Abort a vport's iocbs from driver fabric iocb list
8964 * @vport: pointer to a virtual N_Port data structure.
8966 * This routine aborts all the IOCBs associated with a @vport from the
8967 * driver internal fabric IOCB list. The list contains fabric IOCBs to be
8968 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB
8969 * list, removes each IOCB associated with the @vport off the list, set the
8970 * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function
8971 * associated with the IOCB.
8973 static void lpfc_fabric_abort_vport(struct lpfc_vport
*vport
)
8975 LIST_HEAD(completions
);
8976 struct lpfc_hba
*phba
= vport
->phba
;
8977 struct lpfc_iocbq
*tmp_iocb
, *piocb
;
8979 spin_lock_irq(&phba
->hbalock
);
8980 list_for_each_entry_safe(piocb
, tmp_iocb
, &phba
->fabric_iocb_list
,
8983 if (piocb
->vport
!= vport
)
8986 list_move_tail(&piocb
->list
, &completions
);
8988 spin_unlock_irq(&phba
->hbalock
);
8990 /* Cancel all the IOCBs from the completions list */
8991 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
8996 * lpfc_fabric_abort_nport - Abort a ndlp's iocbs from driver fabric iocb list
8997 * @ndlp: pointer to a node-list data structure.
8999 * This routine aborts all the IOCBs associated with an @ndlp from the
9000 * driver internal fabric IOCB list. The list contains fabric IOCBs to be
9001 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB
9002 * list, removes each IOCB associated with the @ndlp off the list, set the
9003 * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function
9004 * associated with the IOCB.
9006 void lpfc_fabric_abort_nport(struct lpfc_nodelist
*ndlp
)
9008 LIST_HEAD(completions
);
9009 struct lpfc_hba
*phba
= ndlp
->phba
;
9010 struct lpfc_iocbq
*tmp_iocb
, *piocb
;
9011 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
9013 spin_lock_irq(&phba
->hbalock
);
9014 list_for_each_entry_safe(piocb
, tmp_iocb
, &phba
->fabric_iocb_list
,
9016 if ((lpfc_check_sli_ndlp(phba
, pring
, piocb
, ndlp
))) {
9018 list_move_tail(&piocb
->list
, &completions
);
9021 spin_unlock_irq(&phba
->hbalock
);
9023 /* Cancel all the IOCBs from the completions list */
9024 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
9029 * lpfc_fabric_abort_hba - Abort all iocbs on driver fabric iocb list
9030 * @phba: pointer to lpfc hba data structure.
9032 * This routine aborts all the IOCBs currently on the driver internal
9033 * fabric IOCB list. The list contains fabric IOCBs to be issued to the ELS
9034 * IOCB ring. This function takes the entire IOCB list off the fabric IOCB
9035 * list, removes IOCBs off the list, set the status feild to
9036 * IOSTAT_LOCAL_REJECT, and invokes the callback function associated with
9039 void lpfc_fabric_abort_hba(struct lpfc_hba
*phba
)
9041 LIST_HEAD(completions
);
9043 spin_lock_irq(&phba
->hbalock
);
9044 list_splice_init(&phba
->fabric_iocb_list
, &completions
);
9045 spin_unlock_irq(&phba
->hbalock
);
9047 /* Cancel all the IOCBs from the completions list */
9048 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
9053 * lpfc_sli4_vport_delete_els_xri_aborted -Remove all ndlp references for vport
9054 * @vport: pointer to lpfc vport data structure.
9056 * This routine is invoked by the vport cleanup for deletions and the cleanup
9057 * for an ndlp on removal.
9060 lpfc_sli4_vport_delete_els_xri_aborted(struct lpfc_vport
*vport
)
9062 struct lpfc_hba
*phba
= vport
->phba
;
9063 struct lpfc_sglq
*sglq_entry
= NULL
, *sglq_next
= NULL
;
9064 unsigned long iflag
= 0;
9066 spin_lock_irqsave(&phba
->hbalock
, iflag
);
9067 spin_lock(&phba
->sli4_hba
.abts_sgl_list_lock
);
9068 list_for_each_entry_safe(sglq_entry
, sglq_next
,
9069 &phba
->sli4_hba
.lpfc_abts_els_sgl_list
, list
) {
9070 if (sglq_entry
->ndlp
&& sglq_entry
->ndlp
->vport
== vport
)
9071 sglq_entry
->ndlp
= NULL
;
9073 spin_unlock(&phba
->sli4_hba
.abts_sgl_list_lock
);
9074 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
9079 * lpfc_sli4_els_xri_aborted - Slow-path process of els xri abort
9080 * @phba: pointer to lpfc hba data structure.
9081 * @axri: pointer to the els xri abort wcqe structure.
9083 * This routine is invoked by the worker thread to process a SLI4 slow-path
9087 lpfc_sli4_els_xri_aborted(struct lpfc_hba
*phba
,
9088 struct sli4_wcqe_xri_aborted
*axri
)
9090 uint16_t xri
= bf_get(lpfc_wcqe_xa_xri
, axri
);
9091 uint16_t rxid
= bf_get(lpfc_wcqe_xa_remote_xid
, axri
);
9094 struct lpfc_sglq
*sglq_entry
= NULL
, *sglq_next
= NULL
;
9095 unsigned long iflag
= 0;
9096 struct lpfc_nodelist
*ndlp
;
9097 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
9099 spin_lock_irqsave(&phba
->hbalock
, iflag
);
9100 spin_lock(&phba
->sli4_hba
.abts_sgl_list_lock
);
9101 list_for_each_entry_safe(sglq_entry
, sglq_next
,
9102 &phba
->sli4_hba
.lpfc_abts_els_sgl_list
, list
) {
9103 if (sglq_entry
->sli4_xritag
== xri
) {
9104 list_del(&sglq_entry
->list
);
9105 ndlp
= sglq_entry
->ndlp
;
9106 sglq_entry
->ndlp
= NULL
;
9107 spin_lock(&pring
->ring_lock
);
9108 list_add_tail(&sglq_entry
->list
,
9109 &phba
->sli4_hba
.lpfc_sgl_list
);
9110 sglq_entry
->state
= SGL_FREED
;
9111 spin_unlock(&pring
->ring_lock
);
9112 spin_unlock(&phba
->sli4_hba
.abts_sgl_list_lock
);
9113 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
9114 lpfc_set_rrq_active(phba
, ndlp
,
9115 sglq_entry
->sli4_lxritag
,
9118 /* Check if TXQ queue needs to be serviced */
9119 if (!(list_empty(&pring
->txq
)))
9120 lpfc_worker_wake_up(phba
);
9124 spin_unlock(&phba
->sli4_hba
.abts_sgl_list_lock
);
9125 lxri
= lpfc_sli4_xri_inrange(phba
, xri
);
9126 if (lxri
== NO_XRI
) {
9127 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
9130 spin_lock(&pring
->ring_lock
);
9131 sglq_entry
= __lpfc_get_active_sglq(phba
, lxri
);
9132 if (!sglq_entry
|| (sglq_entry
->sli4_xritag
!= xri
)) {
9133 spin_unlock(&pring
->ring_lock
);
9134 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
9137 sglq_entry
->state
= SGL_XRI_ABORTED
;
9138 spin_unlock(&pring
->ring_lock
);
9139 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
9143 /* lpfc_sli_abts_recover_port - Recover a port that failed a BLS_ABORT req.
9144 * @vport: pointer to virtual port object.
9145 * @ndlp: nodelist pointer for the impacted node.
9147 * The driver calls this routine in response to an SLI4 XRI ABORT CQE
9148 * or an SLI3 ASYNC_STATUS_CN event from the port. For either event,
9149 * the driver is required to send a LOGO to the remote node before it
9150 * attempts to recover its login to the remote node.
9153 lpfc_sli_abts_recover_port(struct lpfc_vport
*vport
,
9154 struct lpfc_nodelist
*ndlp
)
9156 struct Scsi_Host
*shost
;
9157 struct lpfc_hba
*phba
;
9158 unsigned long flags
= 0;
9160 shost
= lpfc_shost_from_vport(vport
);
9162 if (ndlp
->nlp_state
!= NLP_STE_MAPPED_NODE
) {
9163 lpfc_printf_log(phba
, KERN_INFO
,
9164 LOG_SLI
, "3093 No rport recovery needed. "
9165 "rport in state 0x%x\n", ndlp
->nlp_state
);
9168 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
9169 "3094 Start rport recovery on shost id 0x%x "
9170 "fc_id 0x%06x vpi 0x%x rpi 0x%x state 0x%x "
9172 shost
->host_no
, ndlp
->nlp_DID
,
9173 vport
->vpi
, ndlp
->nlp_rpi
, ndlp
->nlp_state
,
9176 * The rport is not responding. Remove the FCP-2 flag to prevent
9177 * an ADISC in the follow-up recovery code.
9179 spin_lock_irqsave(shost
->host_lock
, flags
);
9180 ndlp
->nlp_fcp_info
&= ~NLP_FCP_2_DEVICE
;
9181 spin_unlock_irqrestore(shost
->host_lock
, flags
);
9182 lpfc_issue_els_logo(vport
, ndlp
, 0);
9183 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_LOGO_ISSUE
);