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 sp
->cmn
.valid_vendor_ver_level
= 0;
2003 memset(sp
->vendorVersion
, 0, sizeof(sp
->vendorVersion
));
2005 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2006 "Issue PLOGI: did:x%x",
2009 phba
->fc_stat
.elsXmitPLOGI
++;
2010 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_plogi
;
2011 ret
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
2013 if (ret
== IOCB_ERROR
) {
2014 lpfc_els_free_iocb(phba
, elsiocb
);
2021 * lpfc_cmpl_els_prli - Completion callback function for prli
2022 * @phba: pointer to lpfc hba data structure.
2023 * @cmdiocb: pointer to lpfc command iocb data structure.
2024 * @rspiocb: pointer to lpfc response iocb data structure.
2026 * This routine is the completion callback function for a Process Login
2027 * (PRLI) ELS command. The PRLI response IOCB status is checked for error
2028 * status. If there is error status reported, PRLI retry shall be attempted
2029 * by invoking the lpfc_els_retry() routine. Otherwise, the state
2030 * NLP_EVT_CMPL_PRLI is sent to the Discover State Machine (DSM) for this
2031 * ndlp to mark the PRLI completion.
2034 lpfc_cmpl_els_prli(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
2035 struct lpfc_iocbq
*rspiocb
)
2037 struct lpfc_vport
*vport
= cmdiocb
->vport
;
2038 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2040 struct lpfc_nodelist
*ndlp
;
2042 /* we pass cmdiocb to state machine which needs rspiocb as well */
2043 cmdiocb
->context_un
.rsp_iocb
= rspiocb
;
2045 irsp
= &(rspiocb
->iocb
);
2046 ndlp
= (struct lpfc_nodelist
*) cmdiocb
->context1
;
2047 spin_lock_irq(shost
->host_lock
);
2048 ndlp
->nlp_flag
&= ~NLP_PRLI_SND
;
2049 spin_unlock_irq(shost
->host_lock
);
2051 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2052 "PRLI cmpl: status:x%x/x%x did:x%x",
2053 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
2055 /* PRLI completes to NPort <nlp_DID> */
2056 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
2057 "0103 PRLI completes to NPort x%x "
2058 "Data: x%x x%x x%x x%x\n",
2059 ndlp
->nlp_DID
, irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
2060 irsp
->ulpTimeout
, vport
->num_disc_nodes
);
2062 vport
->fc_prli_sent
--;
2063 /* Check to see if link went down during discovery */
2064 if (lpfc_els_chk_latt(vport
))
2067 if (irsp
->ulpStatus
) {
2068 /* Check for retry */
2069 if (lpfc_els_retry(phba
, cmdiocb
, rspiocb
)) {
2070 /* ELS command is being retried */
2074 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
2075 "2754 PRLI failure DID:%06X Status:x%x/x%x\n",
2076 ndlp
->nlp_DID
, irsp
->ulpStatus
,
2077 irsp
->un
.ulpWord
[4]);
2078 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
2079 if (lpfc_error_lost_link(irsp
))
2082 lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
,
2085 /* Good status, call state machine */
2086 lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
,
2089 lpfc_els_free_iocb(phba
, cmdiocb
);
2094 * lpfc_issue_els_prli - Issue a prli iocb command for a vport
2095 * @vport: pointer to a host virtual N_Port data structure.
2096 * @ndlp: pointer to a node-list data structure.
2097 * @retry: number of retries to the command IOCB.
2099 * This routine issues a Process Login (PRLI) ELS command for the
2100 * @vport. The PRLI service parameters are set up in the payload of the
2101 * PRLI Request command and the pointer to lpfc_cmpl_els_prli() routine
2102 * is put to the IOCB completion callback func field before invoking the
2103 * routine lpfc_sli_issue_iocb() to send out PRLI command.
2105 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2106 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2107 * will be stored into the context1 field of the IOCB for the completion
2108 * callback function to the PRLI ELS command.
2111 * 0 - successfully issued prli iocb command for @vport
2112 * 1 - failed to issue prli iocb command for @vport
2115 lpfc_issue_els_prli(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
2118 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2119 struct lpfc_hba
*phba
= vport
->phba
;
2121 struct lpfc_iocbq
*elsiocb
;
2125 cmdsize
= (sizeof(uint32_t) + sizeof(PRLI
));
2126 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
,
2127 ndlp
->nlp_DID
, ELS_CMD_PRLI
);
2131 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
2133 /* For PRLI request, remainder of payload is service parameters */
2134 memset(pcmd
, 0, (sizeof(PRLI
) + sizeof(uint32_t)));
2135 *((uint32_t *) (pcmd
)) = ELS_CMD_PRLI
;
2136 pcmd
+= sizeof(uint32_t);
2138 /* For PRLI, remainder of payload is PRLI parameter page */
2139 npr
= (PRLI
*) pcmd
;
2141 * If our firmware version is 3.20 or later,
2142 * set the following bits for FC-TAPE support.
2144 if (phba
->vpd
.rev
.feaLevelHigh
>= 0x02) {
2145 npr
->ConfmComplAllowed
= 1;
2147 npr
->TaskRetryIdReq
= 1;
2149 npr
->estabImagePair
= 1;
2150 npr
->readXferRdyDis
= 1;
2151 if (vport
->cfg_first_burst_size
)
2152 npr
->writeXferRdyDis
= 1;
2154 /* For FCP support */
2155 npr
->prliType
= PRLI_FCP_TYPE
;
2156 npr
->initiatorFunc
= 1;
2158 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2159 "Issue PRLI: did:x%x",
2160 ndlp
->nlp_DID
, 0, 0);
2162 phba
->fc_stat
.elsXmitPRLI
++;
2163 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_prli
;
2164 spin_lock_irq(shost
->host_lock
);
2165 ndlp
->nlp_flag
|= NLP_PRLI_SND
;
2166 spin_unlock_irq(shost
->host_lock
);
2167 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) ==
2169 spin_lock_irq(shost
->host_lock
);
2170 ndlp
->nlp_flag
&= ~NLP_PRLI_SND
;
2171 spin_unlock_irq(shost
->host_lock
);
2172 lpfc_els_free_iocb(phba
, elsiocb
);
2175 vport
->fc_prli_sent
++;
2180 * lpfc_rscn_disc - Perform rscn discovery for a vport
2181 * @vport: pointer to a host virtual N_Port data structure.
2183 * This routine performs Registration State Change Notification (RSCN)
2184 * discovery for a @vport. If the @vport's node port recovery count is not
2185 * zero, it will invoke the lpfc_els_disc_plogi() to perform PLOGI for all
2186 * the nodes that need recovery. If none of the PLOGI were needed through
2187 * the lpfc_els_disc_plogi() routine, the lpfc_end_rscn() routine shall be
2188 * invoked to check and handle possible more RSCN came in during the period
2189 * of processing the current ones.
2192 lpfc_rscn_disc(struct lpfc_vport
*vport
)
2194 lpfc_can_disctmo(vport
);
2196 /* RSCN discovery */
2197 /* go thru NPR nodes and issue ELS PLOGIs */
2198 if (vport
->fc_npr_cnt
)
2199 if (lpfc_els_disc_plogi(vport
))
2202 lpfc_end_rscn(vport
);
2206 * lpfc_adisc_done - Complete the adisc phase of discovery
2207 * @vport: pointer to lpfc_vport hba data structure that finished all ADISCs.
2209 * This function is called when the final ADISC is completed during discovery.
2210 * This function handles clearing link attention or issuing reg_vpi depending
2211 * on whether npiv is enabled. This function also kicks off the PLOGI phase of
2213 * This function is called with no locks held.
2216 lpfc_adisc_done(struct lpfc_vport
*vport
)
2218 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2219 struct lpfc_hba
*phba
= vport
->phba
;
2222 * For NPIV, cmpl_reg_vpi will set port_state to READY,
2223 * and continue discovery.
2225 if ((phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
2226 !(vport
->fc_flag
& FC_RSCN_MODE
) &&
2227 (phba
->sli_rev
< LPFC_SLI_REV4
)) {
2228 /* The ADISCs are complete. Doesn't matter if they
2229 * succeeded or failed because the ADISC completion
2230 * routine guarantees to call the state machine and
2231 * the RPI is either unregistered (failed ADISC response)
2232 * or the RPI is still valid and the node is marked
2233 * mapped for a target. The exchanges should be in the
2234 * correct state. This code is specific to SLI3.
2236 lpfc_issue_clear_la(phba
, vport
);
2237 lpfc_issue_reg_vpi(phba
, vport
);
2241 * For SLI2, we need to set port_state to READY
2242 * and continue discovery.
2244 if (vport
->port_state
< LPFC_VPORT_READY
) {
2245 /* If we get here, there is nothing to ADISC */
2246 lpfc_issue_clear_la(phba
, vport
);
2247 if (!(vport
->fc_flag
& FC_ABORT_DISCOVERY
)) {
2248 vport
->num_disc_nodes
= 0;
2249 /* go thru NPR list, issue ELS PLOGIs */
2250 if (vport
->fc_npr_cnt
)
2251 lpfc_els_disc_plogi(vport
);
2252 if (!vport
->num_disc_nodes
) {
2253 spin_lock_irq(shost
->host_lock
);
2254 vport
->fc_flag
&= ~FC_NDISC_ACTIVE
;
2255 spin_unlock_irq(shost
->host_lock
);
2256 lpfc_can_disctmo(vport
);
2257 lpfc_end_rscn(vport
);
2260 vport
->port_state
= LPFC_VPORT_READY
;
2262 lpfc_rscn_disc(vport
);
2266 * lpfc_more_adisc - Issue more adisc as needed
2267 * @vport: pointer to a host virtual N_Port data structure.
2269 * This routine determines whether there are more ndlps on a @vport
2270 * node list need to have Address Discover (ADISC) issued. If so, it will
2271 * invoke the lpfc_els_disc_adisc() routine to issue ADISC on the @vport's
2272 * remaining nodes which need to have ADISC sent.
2275 lpfc_more_adisc(struct lpfc_vport
*vport
)
2277 if (vport
->num_disc_nodes
)
2278 vport
->num_disc_nodes
--;
2279 /* Continue discovery with <num_disc_nodes> ADISCs to go */
2280 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
2281 "0210 Continue discovery with %d ADISCs to go "
2282 "Data: x%x x%x x%x\n",
2283 vport
->num_disc_nodes
, vport
->fc_adisc_cnt
,
2284 vport
->fc_flag
, vport
->port_state
);
2285 /* Check to see if there are more ADISCs to be sent */
2286 if (vport
->fc_flag
& FC_NLP_MORE
) {
2287 lpfc_set_disctmo(vport
);
2288 /* go thru NPR nodes and issue any remaining ELS ADISCs */
2289 lpfc_els_disc_adisc(vport
);
2291 if (!vport
->num_disc_nodes
)
2292 lpfc_adisc_done(vport
);
2297 * lpfc_cmpl_els_adisc - Completion callback function for adisc
2298 * @phba: pointer to lpfc hba data structure.
2299 * @cmdiocb: pointer to lpfc command iocb data structure.
2300 * @rspiocb: pointer to lpfc response iocb data structure.
2302 * This routine is the completion function for issuing the Address Discover
2303 * (ADISC) command. It first checks to see whether link went down during
2304 * the discovery process. If so, the node will be marked as node port
2305 * recovery for issuing discover IOCB by the link attention handler and
2306 * exit. Otherwise, the response status is checked. If error was reported
2307 * in the response status, the ADISC command shall be retried by invoking
2308 * the lpfc_els_retry() routine. Otherwise, if no error was reported in
2309 * the response status, the state machine is invoked to set transition
2310 * with respect to NLP_EVT_CMPL_ADISC event.
2313 lpfc_cmpl_els_adisc(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
2314 struct lpfc_iocbq
*rspiocb
)
2316 struct lpfc_vport
*vport
= cmdiocb
->vport
;
2317 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2319 struct lpfc_nodelist
*ndlp
;
2322 /* we pass cmdiocb to state machine which needs rspiocb as well */
2323 cmdiocb
->context_un
.rsp_iocb
= rspiocb
;
2325 irsp
= &(rspiocb
->iocb
);
2326 ndlp
= (struct lpfc_nodelist
*) cmdiocb
->context1
;
2328 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2329 "ADISC cmpl: status:x%x/x%x did:x%x",
2330 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
2333 /* Since ndlp can be freed in the disc state machine, note if this node
2334 * is being used during discovery.
2336 spin_lock_irq(shost
->host_lock
);
2337 disc
= (ndlp
->nlp_flag
& NLP_NPR_2B_DISC
);
2338 ndlp
->nlp_flag
&= ~(NLP_ADISC_SND
| NLP_NPR_2B_DISC
);
2339 spin_unlock_irq(shost
->host_lock
);
2340 /* ADISC completes to NPort <nlp_DID> */
2341 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
2342 "0104 ADISC completes to NPort x%x "
2343 "Data: x%x x%x x%x x%x x%x\n",
2344 ndlp
->nlp_DID
, irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
2345 irsp
->ulpTimeout
, disc
, vport
->num_disc_nodes
);
2346 /* Check to see if link went down during discovery */
2347 if (lpfc_els_chk_latt(vport
)) {
2348 spin_lock_irq(shost
->host_lock
);
2349 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
2350 spin_unlock_irq(shost
->host_lock
);
2354 if (irsp
->ulpStatus
) {
2355 /* Check for retry */
2356 if (lpfc_els_retry(phba
, cmdiocb
, rspiocb
)) {
2357 /* ELS command is being retried */
2359 spin_lock_irq(shost
->host_lock
);
2360 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
2361 spin_unlock_irq(shost
->host_lock
);
2362 lpfc_set_disctmo(vport
);
2367 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
2368 "2755 ADISC failure DID:%06X Status:x%x/x%x\n",
2369 ndlp
->nlp_DID
, irsp
->ulpStatus
,
2370 irsp
->un
.ulpWord
[4]);
2371 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
2372 if (!lpfc_error_lost_link(irsp
))
2373 lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
,
2374 NLP_EVT_CMPL_ADISC
);
2376 /* Good status, call state machine */
2377 lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
,
2378 NLP_EVT_CMPL_ADISC
);
2380 /* Check to see if there are more ADISCs to be sent */
2381 if (disc
&& vport
->num_disc_nodes
)
2382 lpfc_more_adisc(vport
);
2384 lpfc_els_free_iocb(phba
, cmdiocb
);
2389 * lpfc_issue_els_adisc - Issue an address discover iocb to an node on a vport
2390 * @vport: pointer to a virtual N_Port data structure.
2391 * @ndlp: pointer to a node-list data structure.
2392 * @retry: number of retries to the command IOCB.
2394 * This routine issues an Address Discover (ADISC) for an @ndlp on a
2395 * @vport. It prepares the payload of the ADISC ELS command, updates the
2396 * and states of the ndlp, and invokes the lpfc_sli_issue_iocb() routine
2397 * to issue the ADISC ELS command.
2399 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2400 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2401 * will be stored into the context1 field of the IOCB for the completion
2402 * callback function to the ADISC ELS command.
2405 * 0 - successfully issued adisc
2406 * 1 - failed to issue adisc
2409 lpfc_issue_els_adisc(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
2412 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2413 struct lpfc_hba
*phba
= vport
->phba
;
2415 struct lpfc_iocbq
*elsiocb
;
2419 cmdsize
= (sizeof(uint32_t) + sizeof(ADISC
));
2420 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
,
2421 ndlp
->nlp_DID
, ELS_CMD_ADISC
);
2425 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
2427 /* For ADISC request, remainder of payload is service parameters */
2428 *((uint32_t *) (pcmd
)) = ELS_CMD_ADISC
;
2429 pcmd
+= sizeof(uint32_t);
2431 /* Fill in ADISC payload */
2432 ap
= (ADISC
*) pcmd
;
2433 ap
->hardAL_PA
= phba
->fc_pref_ALPA
;
2434 memcpy(&ap
->portName
, &vport
->fc_portname
, sizeof(struct lpfc_name
));
2435 memcpy(&ap
->nodeName
, &vport
->fc_nodename
, sizeof(struct lpfc_name
));
2436 ap
->DID
= be32_to_cpu(vport
->fc_myDID
);
2438 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2439 "Issue ADISC: did:x%x",
2440 ndlp
->nlp_DID
, 0, 0);
2442 phba
->fc_stat
.elsXmitADISC
++;
2443 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_adisc
;
2444 spin_lock_irq(shost
->host_lock
);
2445 ndlp
->nlp_flag
|= NLP_ADISC_SND
;
2446 spin_unlock_irq(shost
->host_lock
);
2447 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) ==
2449 spin_lock_irq(shost
->host_lock
);
2450 ndlp
->nlp_flag
&= ~NLP_ADISC_SND
;
2451 spin_unlock_irq(shost
->host_lock
);
2452 lpfc_els_free_iocb(phba
, elsiocb
);
2459 * lpfc_cmpl_els_logo - Completion callback function for logo
2460 * @phba: pointer to lpfc hba data structure.
2461 * @cmdiocb: pointer to lpfc command iocb data structure.
2462 * @rspiocb: pointer to lpfc response iocb data structure.
2464 * This routine is the completion function for issuing the ELS Logout (LOGO)
2465 * command. If no error status was reported from the LOGO response, the
2466 * state machine of the associated ndlp shall be invoked for transition with
2467 * respect to NLP_EVT_CMPL_LOGO event. Otherwise, if error status was reported,
2468 * the lpfc_els_retry() routine will be invoked to retry the LOGO command.
2471 lpfc_cmpl_els_logo(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
2472 struct lpfc_iocbq
*rspiocb
)
2474 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) cmdiocb
->context1
;
2475 struct lpfc_vport
*vport
= ndlp
->vport
;
2476 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2478 struct lpfcMboxq
*mbox
;
2479 unsigned long flags
;
2480 uint32_t skip_recovery
= 0;
2482 /* we pass cmdiocb to state machine which needs rspiocb as well */
2483 cmdiocb
->context_un
.rsp_iocb
= rspiocb
;
2485 irsp
= &(rspiocb
->iocb
);
2486 spin_lock_irq(shost
->host_lock
);
2487 ndlp
->nlp_flag
&= ~NLP_LOGO_SND
;
2488 spin_unlock_irq(shost
->host_lock
);
2490 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2491 "LOGO cmpl: status:x%x/x%x did:x%x",
2492 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
2495 /* LOGO completes to NPort <nlp_DID> */
2496 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
2497 "0105 LOGO completes to NPort x%x "
2498 "Data: x%x x%x x%x x%x\n",
2499 ndlp
->nlp_DID
, irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
2500 irsp
->ulpTimeout
, vport
->num_disc_nodes
);
2502 if (lpfc_els_chk_latt(vport
)) {
2507 /* Check to see if link went down during discovery */
2508 if (ndlp
->nlp_flag
& NLP_TARGET_REMOVE
) {
2509 /* NLP_EVT_DEVICE_RM should unregister the RPI
2510 * which should abort all outstanding IOs.
2512 lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
,
2518 if (irsp
->ulpStatus
) {
2519 /* Check for retry */
2520 if (lpfc_els_retry(phba
, cmdiocb
, rspiocb
)) {
2521 /* ELS command is being retried */
2526 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
2527 "2756 LOGO failure DID:%06X Status:x%x/x%x\n",
2528 ndlp
->nlp_DID
, irsp
->ulpStatus
,
2529 irsp
->un
.ulpWord
[4]);
2530 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
2531 if (lpfc_error_lost_link(irsp
)) {
2537 /* Call state machine. This will unregister the rpi if needed. */
2538 lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
, NLP_EVT_CMPL_LOGO
);
2541 lpfc_els_free_iocb(phba
, cmdiocb
);
2542 /* If we are in pt2pt mode, we could rcv new S_ID on PLOGI */
2543 if ((vport
->fc_flag
& FC_PT2PT
) &&
2544 !(vport
->fc_flag
& FC_PT2PT_PLOGI
)) {
2545 phba
->pport
->fc_myDID
= 0;
2546 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
2548 lpfc_config_link(phba
, mbox
);
2549 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
2550 mbox
->vport
= vport
;
2551 if (lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
) ==
2553 mempool_free(mbox
, phba
->mbox_mem_pool
);
2560 * If the node is a target, the handling attempts to recover the port.
2561 * For any other port type, the rpi is unregistered as an implicit
2564 if ((ndlp
->nlp_type
& NLP_FCP_TARGET
) && (skip_recovery
== 0)) {
2565 lpfc_cancel_retry_delay_tmo(vport
, ndlp
);
2566 spin_lock_irqsave(shost
->host_lock
, flags
);
2567 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
2568 spin_unlock_irqrestore(shost
->host_lock
, flags
);
2570 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
2571 "3187 LOGO completes to NPort x%x: Start "
2572 "Recovery Data: x%x x%x x%x x%x\n",
2573 ndlp
->nlp_DID
, irsp
->ulpStatus
,
2574 irsp
->un
.ulpWord
[4], irsp
->ulpTimeout
,
2575 vport
->num_disc_nodes
);
2576 lpfc_disc_start(vport
);
2582 * lpfc_issue_els_logo - Issue a logo to an node on a vport
2583 * @vport: pointer to a virtual N_Port data structure.
2584 * @ndlp: pointer to a node-list data structure.
2585 * @retry: number of retries to the command IOCB.
2587 * This routine constructs and issues an ELS Logout (LOGO) iocb command
2588 * to a remote node, referred by an @ndlp on a @vport. It constructs the
2589 * payload of the IOCB, properly sets up the @ndlp state, and invokes the
2590 * lpfc_sli_issue_iocb() routine to send out the LOGO ELS command.
2592 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2593 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2594 * will be stored into the context1 field of the IOCB for the completion
2595 * callback function to the LOGO ELS command.
2598 * 0 - successfully issued logo
2599 * 1 - failed to issue logo
2602 lpfc_issue_els_logo(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
2605 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2606 struct lpfc_hba
*phba
= vport
->phba
;
2607 struct lpfc_iocbq
*elsiocb
;
2612 spin_lock_irq(shost
->host_lock
);
2613 if (ndlp
->nlp_flag
& NLP_LOGO_SND
) {
2614 spin_unlock_irq(shost
->host_lock
);
2617 spin_unlock_irq(shost
->host_lock
);
2619 cmdsize
= (2 * sizeof(uint32_t)) + sizeof(struct lpfc_name
);
2620 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
,
2621 ndlp
->nlp_DID
, ELS_CMD_LOGO
);
2625 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
2626 *((uint32_t *) (pcmd
)) = ELS_CMD_LOGO
;
2627 pcmd
+= sizeof(uint32_t);
2629 /* Fill in LOGO payload */
2630 *((uint32_t *) (pcmd
)) = be32_to_cpu(vport
->fc_myDID
);
2631 pcmd
+= sizeof(uint32_t);
2632 memcpy(pcmd
, &vport
->fc_portname
, sizeof(struct lpfc_name
));
2634 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2635 "Issue LOGO: did:x%x",
2636 ndlp
->nlp_DID
, 0, 0);
2639 * If we are issuing a LOGO, we may try to recover the remote NPort
2640 * by issuing a PLOGI later. Even though we issue ELS cmds by the
2641 * VPI, if we have a valid RPI, and that RPI gets unreg'ed while
2642 * that ELS command is in-flight, the HBA returns a IOERR_INVALID_RPI
2643 * for that ELS cmd. To avoid this situation, lets get rid of the
2644 * RPI right now, before any ELS cmds are sent.
2646 spin_lock_irq(shost
->host_lock
);
2647 ndlp
->nlp_flag
|= NLP_ISSUE_LOGO
;
2648 spin_unlock_irq(shost
->host_lock
);
2649 if (lpfc_unreg_rpi(vport
, ndlp
)) {
2650 lpfc_els_free_iocb(phba
, elsiocb
);
2654 phba
->fc_stat
.elsXmitLOGO
++;
2655 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_logo
;
2656 spin_lock_irq(shost
->host_lock
);
2657 ndlp
->nlp_flag
|= NLP_LOGO_SND
;
2658 ndlp
->nlp_flag
&= ~NLP_ISSUE_LOGO
;
2659 spin_unlock_irq(shost
->host_lock
);
2660 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
2662 if (rc
== IOCB_ERROR
) {
2663 spin_lock_irq(shost
->host_lock
);
2664 ndlp
->nlp_flag
&= ~NLP_LOGO_SND
;
2665 spin_unlock_irq(shost
->host_lock
);
2666 lpfc_els_free_iocb(phba
, elsiocb
);
2673 * lpfc_cmpl_els_cmd - Completion callback function for generic els command
2674 * @phba: pointer to lpfc hba data structure.
2675 * @cmdiocb: pointer to lpfc command iocb data structure.
2676 * @rspiocb: pointer to lpfc response iocb data structure.
2678 * This routine is a generic completion callback function for ELS commands.
2679 * Specifically, it is the callback function which does not need to perform
2680 * any command specific operations. It is currently used by the ELS command
2681 * issuing routines for the ELS State Change Request (SCR),
2682 * lpfc_issue_els_scr(), and the ELS Fibre Channel Address Resolution
2683 * Protocol Response (FARPR) routine, lpfc_issue_els_farpr(). Other than
2684 * certain debug loggings, this callback function simply invokes the
2685 * lpfc_els_chk_latt() routine to check whether link went down during the
2686 * discovery process.
2689 lpfc_cmpl_els_cmd(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
2690 struct lpfc_iocbq
*rspiocb
)
2692 struct lpfc_vport
*vport
= cmdiocb
->vport
;
2695 irsp
= &rspiocb
->iocb
;
2697 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2698 "ELS cmd cmpl: status:x%x/x%x did:x%x",
2699 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
2700 irsp
->un
.elsreq64
.remoteID
);
2701 /* ELS cmd tag <ulpIoTag> completes */
2702 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
2703 "0106 ELS cmd tag x%x completes Data: x%x x%x x%x\n",
2704 irsp
->ulpIoTag
, irsp
->ulpStatus
,
2705 irsp
->un
.ulpWord
[4], irsp
->ulpTimeout
);
2706 /* Check to see if link went down during discovery */
2707 lpfc_els_chk_latt(vport
);
2708 lpfc_els_free_iocb(phba
, cmdiocb
);
2713 * lpfc_issue_els_scr - Issue a scr to an node on a vport
2714 * @vport: pointer to a host virtual N_Port data structure.
2715 * @nportid: N_Port identifier to the remote node.
2716 * @retry: number of retries to the command IOCB.
2718 * This routine issues a State Change Request (SCR) to a fabric node
2719 * on a @vport. The remote node @nportid is passed into the function. It
2720 * first search the @vport node list to find the matching ndlp. If no such
2721 * ndlp is found, a new ndlp shall be created for this (SCR) purpose. An
2722 * IOCB is allocated, payload prepared, and the lpfc_sli_issue_iocb()
2723 * routine is invoked to send the SCR IOCB.
2725 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2726 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2727 * will be stored into the context1 field of the IOCB for the completion
2728 * callback function to the SCR ELS command.
2731 * 0 - Successfully issued scr command
2732 * 1 - Failed to issue scr command
2735 lpfc_issue_els_scr(struct lpfc_vport
*vport
, uint32_t nportid
, uint8_t retry
)
2737 struct lpfc_hba
*phba
= vport
->phba
;
2738 struct lpfc_iocbq
*elsiocb
;
2741 struct lpfc_nodelist
*ndlp
;
2743 cmdsize
= (sizeof(uint32_t) + sizeof(SCR
));
2745 ndlp
= lpfc_findnode_did(vport
, nportid
);
2747 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
2750 lpfc_nlp_init(vport
, ndlp
, nportid
);
2751 lpfc_enqueue_node(vport
, ndlp
);
2752 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
2753 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_UNUSED_NODE
);
2758 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
,
2759 ndlp
->nlp_DID
, ELS_CMD_SCR
);
2762 /* This will trigger the release of the node just
2769 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
2771 *((uint32_t *) (pcmd
)) = ELS_CMD_SCR
;
2772 pcmd
+= sizeof(uint32_t);
2774 /* For SCR, remainder of payload is SCR parameter page */
2775 memset(pcmd
, 0, sizeof(SCR
));
2776 ((SCR
*) pcmd
)->Function
= SCR_FUNC_FULL
;
2778 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2779 "Issue SCR: did:x%x",
2780 ndlp
->nlp_DID
, 0, 0);
2782 phba
->fc_stat
.elsXmitSCR
++;
2783 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_cmd
;
2784 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) ==
2786 /* The additional lpfc_nlp_put will cause the following
2787 * lpfc_els_free_iocb routine to trigger the rlease of
2791 lpfc_els_free_iocb(phba
, elsiocb
);
2794 /* This will cause the callback-function lpfc_cmpl_els_cmd to
2795 * trigger the release of node.
2803 * lpfc_issue_els_farpr - Issue a farp to an node on a vport
2804 * @vport: pointer to a host virtual N_Port data structure.
2805 * @nportid: N_Port identifier to the remote node.
2806 * @retry: number of retries to the command IOCB.
2808 * This routine issues a Fibre Channel Address Resolution Response
2809 * (FARPR) to a node on a vport. The remote node N_Port identifier (@nportid)
2810 * is passed into the function. It first search the @vport node list to find
2811 * the matching ndlp. If no such ndlp is found, a new ndlp shall be created
2812 * for this (FARPR) purpose. An IOCB is allocated, payload prepared, and the
2813 * lpfc_sli_issue_iocb() routine is invoked to send the FARPR ELS command.
2815 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2816 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2817 * will be stored into the context1 field of the IOCB for the completion
2818 * callback function to the PARPR ELS command.
2821 * 0 - Successfully issued farpr command
2822 * 1 - Failed to issue farpr command
2825 lpfc_issue_els_farpr(struct lpfc_vport
*vport
, uint32_t nportid
, uint8_t retry
)
2827 struct lpfc_hba
*phba
= vport
->phba
;
2828 struct lpfc_iocbq
*elsiocb
;
2833 struct lpfc_nodelist
*ondlp
;
2834 struct lpfc_nodelist
*ndlp
;
2836 cmdsize
= (sizeof(uint32_t) + sizeof(FARP
));
2838 ndlp
= lpfc_findnode_did(vport
, nportid
);
2840 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
2843 lpfc_nlp_init(vport
, ndlp
, nportid
);
2844 lpfc_enqueue_node(vport
, ndlp
);
2845 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
2846 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_UNUSED_NODE
);
2851 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
,
2852 ndlp
->nlp_DID
, ELS_CMD_RNID
);
2854 /* This will trigger the release of the node just
2861 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
2863 *((uint32_t *) (pcmd
)) = ELS_CMD_FARPR
;
2864 pcmd
+= sizeof(uint32_t);
2866 /* Fill in FARPR payload */
2867 fp
= (FARP
*) (pcmd
);
2868 memset(fp
, 0, sizeof(FARP
));
2869 lp
= (uint32_t *) pcmd
;
2870 *lp
++ = be32_to_cpu(nportid
);
2871 *lp
++ = be32_to_cpu(vport
->fc_myDID
);
2873 fp
->Mflags
= (FARP_MATCH_PORT
| FARP_MATCH_NODE
);
2875 memcpy(&fp
->RportName
, &vport
->fc_portname
, sizeof(struct lpfc_name
));
2876 memcpy(&fp
->RnodeName
, &vport
->fc_nodename
, sizeof(struct lpfc_name
));
2877 ondlp
= lpfc_findnode_did(vport
, nportid
);
2878 if (ondlp
&& NLP_CHK_NODE_ACT(ondlp
)) {
2879 memcpy(&fp
->OportName
, &ondlp
->nlp_portname
,
2880 sizeof(struct lpfc_name
));
2881 memcpy(&fp
->OnodeName
, &ondlp
->nlp_nodename
,
2882 sizeof(struct lpfc_name
));
2885 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2886 "Issue FARPR: did:x%x",
2887 ndlp
->nlp_DID
, 0, 0);
2889 phba
->fc_stat
.elsXmitFARPR
++;
2890 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_cmd
;
2891 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) ==
2893 /* The additional lpfc_nlp_put will cause the following
2894 * lpfc_els_free_iocb routine to trigger the release of
2898 lpfc_els_free_iocb(phba
, elsiocb
);
2901 /* This will cause the callback-function lpfc_cmpl_els_cmd to
2902 * trigger the release of the node.
2909 * lpfc_cancel_retry_delay_tmo - Cancel the timer with delayed iocb-cmd retry
2910 * @vport: pointer to a host virtual N_Port data structure.
2911 * @nlp: pointer to a node-list data structure.
2913 * This routine cancels the timer with a delayed IOCB-command retry for
2914 * a @vport's @ndlp. It stops the timer for the delayed function retrial and
2915 * removes the ELS retry event if it presents. In addition, if the
2916 * NLP_NPR_2B_DISC bit is set in the @nlp's nlp_flag bitmap, ADISC IOCB
2917 * commands are sent for the @vport's nodes that require issuing discovery
2921 lpfc_cancel_retry_delay_tmo(struct lpfc_vport
*vport
, struct lpfc_nodelist
*nlp
)
2923 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2924 struct lpfc_work_evt
*evtp
;
2926 if (!(nlp
->nlp_flag
& NLP_DELAY_TMO
))
2928 spin_lock_irq(shost
->host_lock
);
2929 nlp
->nlp_flag
&= ~NLP_DELAY_TMO
;
2930 spin_unlock_irq(shost
->host_lock
);
2931 del_timer_sync(&nlp
->nlp_delayfunc
);
2932 nlp
->nlp_last_elscmd
= 0;
2933 if (!list_empty(&nlp
->els_retry_evt
.evt_listp
)) {
2934 list_del_init(&nlp
->els_retry_evt
.evt_listp
);
2935 /* Decrement nlp reference count held for the delayed retry */
2936 evtp
= &nlp
->els_retry_evt
;
2937 lpfc_nlp_put((struct lpfc_nodelist
*)evtp
->evt_arg1
);
2939 if (nlp
->nlp_flag
& NLP_NPR_2B_DISC
) {
2940 spin_lock_irq(shost
->host_lock
);
2941 nlp
->nlp_flag
&= ~NLP_NPR_2B_DISC
;
2942 spin_unlock_irq(shost
->host_lock
);
2943 if (vport
->num_disc_nodes
) {
2944 if (vport
->port_state
< LPFC_VPORT_READY
) {
2945 /* Check if there are more ADISCs to be sent */
2946 lpfc_more_adisc(vport
);
2948 /* Check if there are more PLOGIs to be sent */
2949 lpfc_more_plogi(vport
);
2950 if (vport
->num_disc_nodes
== 0) {
2951 spin_lock_irq(shost
->host_lock
);
2952 vport
->fc_flag
&= ~FC_NDISC_ACTIVE
;
2953 spin_unlock_irq(shost
->host_lock
);
2954 lpfc_can_disctmo(vport
);
2955 lpfc_end_rscn(vport
);
2964 * lpfc_els_retry_delay - Timer function with a ndlp delayed function timer
2965 * @ptr: holder for the pointer to the timer function associated data (ndlp).
2967 * This routine is invoked by the ndlp delayed-function timer to check
2968 * whether there is any pending ELS retry event(s) with the node. If not, it
2969 * simply returns. Otherwise, if there is at least one ELS delayed event, it
2970 * adds the delayed events to the HBA work list and invokes the
2971 * lpfc_worker_wake_up() routine to wake up worker thread to process the
2972 * event. Note that lpfc_nlp_get() is called before posting the event to
2973 * the work list to hold reference count of ndlp so that it guarantees the
2974 * reference to ndlp will still be available when the worker thread gets
2975 * to the event associated with the ndlp.
2978 lpfc_els_retry_delay(unsigned long ptr
)
2980 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) ptr
;
2981 struct lpfc_vport
*vport
= ndlp
->vport
;
2982 struct lpfc_hba
*phba
= vport
->phba
;
2983 unsigned long flags
;
2984 struct lpfc_work_evt
*evtp
= &ndlp
->els_retry_evt
;
2986 spin_lock_irqsave(&phba
->hbalock
, flags
);
2987 if (!list_empty(&evtp
->evt_listp
)) {
2988 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
2992 /* We need to hold the node by incrementing the reference
2993 * count until the queued work is done
2995 evtp
->evt_arg1
= lpfc_nlp_get(ndlp
);
2996 if (evtp
->evt_arg1
) {
2997 evtp
->evt
= LPFC_EVT_ELS_RETRY
;
2998 list_add_tail(&evtp
->evt_listp
, &phba
->work_list
);
2999 lpfc_worker_wake_up(phba
);
3001 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
3006 * lpfc_els_retry_delay_handler - Work thread handler for ndlp delayed function
3007 * @ndlp: pointer to a node-list data structure.
3009 * This routine is the worker-thread handler for processing the @ndlp delayed
3010 * event(s), posted by the lpfc_els_retry_delay() routine. It simply retrieves
3011 * the last ELS command from the associated ndlp and invokes the proper ELS
3012 * function according to the delayed ELS command to retry the command.
3015 lpfc_els_retry_delay_handler(struct lpfc_nodelist
*ndlp
)
3017 struct lpfc_vport
*vport
= ndlp
->vport
;
3018 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
3019 uint32_t cmd
, retry
;
3021 spin_lock_irq(shost
->host_lock
);
3022 cmd
= ndlp
->nlp_last_elscmd
;
3023 ndlp
->nlp_last_elscmd
= 0;
3025 if (!(ndlp
->nlp_flag
& NLP_DELAY_TMO
)) {
3026 spin_unlock_irq(shost
->host_lock
);
3030 ndlp
->nlp_flag
&= ~NLP_DELAY_TMO
;
3031 spin_unlock_irq(shost
->host_lock
);
3033 * If a discovery event readded nlp_delayfunc after timer
3034 * firing and before processing the timer, cancel the
3037 del_timer_sync(&ndlp
->nlp_delayfunc
);
3038 retry
= ndlp
->nlp_retry
;
3039 ndlp
->nlp_retry
= 0;
3043 lpfc_issue_els_flogi(vport
, ndlp
, retry
);
3046 if (!lpfc_issue_els_plogi(vport
, ndlp
->nlp_DID
, retry
)) {
3047 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3048 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_PLOGI_ISSUE
);
3052 if (!lpfc_issue_els_adisc(vport
, ndlp
, retry
)) {
3053 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3054 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_ADISC_ISSUE
);
3058 if (!lpfc_issue_els_prli(vport
, ndlp
, retry
)) {
3059 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3060 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_PRLI_ISSUE
);
3064 if (!lpfc_issue_els_logo(vport
, ndlp
, retry
)) {
3065 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3066 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_LOGO_ISSUE
);
3070 if (!(vport
->fc_flag
& FC_VPORT_NEEDS_INIT_VPI
))
3071 lpfc_issue_els_fdisc(vport
, ndlp
, retry
);
3078 * lpfc_els_retry - Make retry decision on an els command iocb
3079 * @phba: pointer to lpfc hba data structure.
3080 * @cmdiocb: pointer to lpfc command iocb data structure.
3081 * @rspiocb: pointer to lpfc response iocb data structure.
3083 * This routine makes a retry decision on an ELS command IOCB, which has
3084 * failed. The following ELS IOCBs use this function for retrying the command
3085 * when previously issued command responsed with error status: FLOGI, PLOGI,
3086 * PRLI, ADISC, LOGO, and FDISC. Based on the ELS command type and the
3087 * returned error status, it makes the decision whether a retry shall be
3088 * issued for the command, and whether a retry shall be made immediately or
3089 * delayed. In the former case, the corresponding ELS command issuing-function
3090 * is called to retry the command. In the later case, the ELS command shall
3091 * be posted to the ndlp delayed event and delayed function timer set to the
3092 * ndlp for the delayed command issusing.
3095 * 0 - No retry of els command is made
3096 * 1 - Immediate or delayed retry of els command is made
3099 lpfc_els_retry(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
3100 struct lpfc_iocbq
*rspiocb
)
3102 struct lpfc_vport
*vport
= cmdiocb
->vport
;
3103 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
3104 IOCB_t
*irsp
= &rspiocb
->iocb
;
3105 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) cmdiocb
->context1
;
3106 struct lpfc_dmabuf
*pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
3109 int retry
= 0, maxretry
= lpfc_max_els_tries
, delay
= 0;
3115 /* Note: context2 may be 0 for internal driver abort
3116 * of delays ELS command.
3119 if (pcmd
&& pcmd
->virt
) {
3120 elscmd
= (uint32_t *) (pcmd
->virt
);
3124 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
))
3125 did
= ndlp
->nlp_DID
;
3127 /* We should only hit this case for retrying PLOGI */
3128 did
= irsp
->un
.elsreq64
.remoteID
;
3129 ndlp
= lpfc_findnode_did(vport
, did
);
3130 if ((!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
))
3131 && (cmd
!= ELS_CMD_PLOGI
))
3135 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
3136 "Retry ELS: wd7:x%x wd4:x%x did:x%x",
3137 *(((uint32_t *) irsp
) + 7), irsp
->un
.ulpWord
[4], ndlp
->nlp_DID
);
3139 switch (irsp
->ulpStatus
) {
3140 case IOSTAT_FCP_RSP_ERROR
:
3142 case IOSTAT_REMOTE_STOP
:
3143 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
3144 /* This IO was aborted by the target, we don't
3145 * know the rxid and because we did not send the
3146 * ABTS we cannot generate and RRQ.
3148 lpfc_set_rrq_active(phba
, ndlp
,
3149 cmdiocb
->sli4_lxritag
, 0, 0);
3152 case IOSTAT_LOCAL_REJECT
:
3153 switch ((irsp
->un
.ulpWord
[4] & IOERR_PARAM_MASK
)) {
3154 case IOERR_LOOP_OPEN_FAILURE
:
3155 if (cmd
== ELS_CMD_FLOGI
) {
3156 if (PCI_DEVICE_ID_HORNET
==
3157 phba
->pcidev
->device
) {
3158 phba
->fc_topology
= LPFC_TOPOLOGY_LOOP
;
3159 phba
->pport
->fc_myDID
= 0;
3160 phba
->alpa_map
[0] = 0;
3161 phba
->alpa_map
[1] = 0;
3164 if (cmd
== ELS_CMD_PLOGI
&& cmdiocb
->retry
== 0)
3169 case IOERR_ILLEGAL_COMMAND
:
3170 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
3171 "0124 Retry illegal cmd x%x "
3172 "retry:x%x delay:x%x\n",
3173 cmd
, cmdiocb
->retry
, delay
);
3175 /* All command's retry policy */
3177 if (cmdiocb
->retry
> 2)
3181 case IOERR_NO_RESOURCES
:
3182 logerr
= 1; /* HBA out of resources */
3184 if (cmdiocb
->retry
> 100)
3189 case IOERR_ILLEGAL_FRAME
:
3194 case IOERR_SEQUENCE_TIMEOUT
:
3195 case IOERR_INVALID_RPI
:
3196 if (cmd
== ELS_CMD_PLOGI
&&
3197 did
== NameServer_DID
) {
3198 /* Continue forever if plogi to */
3199 /* the nameserver fails */
3208 case IOSTAT_NPORT_RJT
:
3209 case IOSTAT_FABRIC_RJT
:
3210 if (irsp
->un
.ulpWord
[4] & RJT_UNAVAIL_TEMP
) {
3216 case IOSTAT_NPORT_BSY
:
3217 case IOSTAT_FABRIC_BSY
:
3218 logerr
= 1; /* Fabric / Remote NPort out of resources */
3223 stat
.un
.lsRjtError
= be32_to_cpu(irsp
->un
.ulpWord
[4]);
3224 /* Added for Vendor specifc support
3225 * Just keep retrying for these Rsn / Exp codes
3227 switch (stat
.un
.b
.lsRjtRsnCode
) {
3228 case LSRJT_UNABLE_TPC
:
3229 if (stat
.un
.b
.lsRjtRsnCodeExp
==
3230 LSEXP_CMD_IN_PROGRESS
) {
3231 if (cmd
== ELS_CMD_PLOGI
) {
3238 if (stat
.un
.b
.lsRjtRsnCodeExp
==
3239 LSEXP_CANT_GIVE_DATA
) {
3240 if (cmd
== ELS_CMD_PLOGI
) {
3247 if ((cmd
== ELS_CMD_PLOGI
) ||
3248 (cmd
== ELS_CMD_PRLI
)) {
3250 maxretry
= lpfc_max_els_tries
+ 1;
3254 if ((phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
3255 (cmd
== ELS_CMD_FDISC
) &&
3256 (stat
.un
.b
.lsRjtRsnCodeExp
== LSEXP_OUT_OF_RESOURCE
)){
3257 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
3258 "0125 FDISC Failed (x%x). "
3259 "Fabric out of resources\n",
3260 stat
.un
.lsRjtError
);
3261 lpfc_vport_set_state(vport
,
3262 FC_VPORT_NO_FABRIC_RSCS
);
3266 case LSRJT_LOGICAL_BSY
:
3267 if ((cmd
== ELS_CMD_PLOGI
) ||
3268 (cmd
== ELS_CMD_PRLI
)) {
3271 } else if (cmd
== ELS_CMD_FDISC
) {
3272 /* FDISC retry policy */
3274 if (cmdiocb
->retry
>= 32)
3280 case LSRJT_LOGICAL_ERR
:
3281 /* There are some cases where switches return this
3282 * error when they are not ready and should be returning
3283 * Logical Busy. We should delay every time.
3285 if (cmd
== ELS_CMD_FDISC
&&
3286 stat
.un
.b
.lsRjtRsnCodeExp
== LSEXP_PORT_LOGIN_REQ
) {
3292 case LSRJT_PROTOCOL_ERR
:
3293 if ((phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
3294 (cmd
== ELS_CMD_FDISC
) &&
3295 ((stat
.un
.b
.lsRjtRsnCodeExp
== LSEXP_INVALID_PNAME
) ||
3296 (stat
.un
.b
.lsRjtRsnCodeExp
== LSEXP_INVALID_NPORT_ID
))
3298 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
3299 "0122 FDISC Failed (x%x). "
3300 "Fabric Detected Bad WWN\n",
3301 stat
.un
.lsRjtError
);
3302 lpfc_vport_set_state(vport
,
3303 FC_VPORT_FABRIC_REJ_WWN
);
3306 case LSRJT_VENDOR_UNIQUE
:
3307 if ((stat
.un
.b
.vendorUnique
== 0x45) &&
3308 (cmd
== ELS_CMD_FLOGI
)) {
3315 case IOSTAT_INTERMED_RSP
:
3323 if (did
== FDMI_DID
)
3326 if ((cmd
== ELS_CMD_FLOGI
) &&
3327 (phba
->fc_topology
!= LPFC_TOPOLOGY_LOOP
) &&
3328 !lpfc_error_lost_link(irsp
)) {
3329 /* FLOGI retry policy */
3331 /* retry FLOGI forever */
3332 if (phba
->link_flag
!= LS_LOOPBACK_MODE
)
3337 if (cmdiocb
->retry
>= 100)
3339 else if (cmdiocb
->retry
>= 32)
3341 } else if ((cmd
== ELS_CMD_FDISC
) && !lpfc_error_lost_link(irsp
)) {
3342 /* retry FDISCs every second up to devloss */
3344 maxretry
= vport
->cfg_devloss_tmo
;
3349 if (maxretry
&& (cmdiocb
->retry
>= maxretry
)) {
3350 phba
->fc_stat
.elsRetryExceeded
++;
3354 if ((vport
->load_flag
& FC_UNLOADING
) != 0)
3359 if ((cmd
== ELS_CMD_PLOGI
) || (cmd
== ELS_CMD_FDISC
)) {
3360 /* Stop retrying PLOGI and FDISC if in FCF discovery */
3361 if (phba
->fcf
.fcf_flag
& FCF_DISCOVERY
) {
3362 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
3363 "2849 Stop retry ELS command "
3364 "x%x to remote NPORT x%x, "
3365 "Data: x%x x%x\n", cmd
, did
,
3366 cmdiocb
->retry
, delay
);
3371 /* Retry ELS command <elsCmd> to remote NPORT <did> */
3372 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
3373 "0107 Retry ELS command x%x to remote "
3374 "NPORT x%x Data: x%x x%x\n",
3375 cmd
, did
, cmdiocb
->retry
, delay
);
3377 if (((cmd
== ELS_CMD_PLOGI
) || (cmd
== ELS_CMD_ADISC
)) &&
3378 ((irsp
->ulpStatus
!= IOSTAT_LOCAL_REJECT
) ||
3379 ((irsp
->un
.ulpWord
[4] & IOERR_PARAM_MASK
) !=
3380 IOERR_NO_RESOURCES
))) {
3381 /* Don't reset timer for no resources */
3383 /* If discovery / RSCN timer is running, reset it */
3384 if (timer_pending(&vport
->fc_disctmo
) ||
3385 (vport
->fc_flag
& FC_RSCN_MODE
))
3386 lpfc_set_disctmo(vport
);
3389 phba
->fc_stat
.elsXmitRetry
++;
3390 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
) && delay
) {
3391 phba
->fc_stat
.elsDelayRetry
++;
3392 ndlp
->nlp_retry
= cmdiocb
->retry
;
3394 /* delay is specified in milliseconds */
3395 mod_timer(&ndlp
->nlp_delayfunc
,
3396 jiffies
+ msecs_to_jiffies(delay
));
3397 spin_lock_irq(shost
->host_lock
);
3398 ndlp
->nlp_flag
|= NLP_DELAY_TMO
;
3399 spin_unlock_irq(shost
->host_lock
);
3401 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3402 if (cmd
== ELS_CMD_PRLI
)
3403 lpfc_nlp_set_state(vport
, ndlp
,
3404 NLP_STE_PRLI_ISSUE
);
3406 lpfc_nlp_set_state(vport
, ndlp
,
3408 ndlp
->nlp_last_elscmd
= cmd
;
3414 lpfc_issue_els_flogi(vport
, ndlp
, cmdiocb
->retry
);
3417 lpfc_issue_els_fdisc(vport
, ndlp
, cmdiocb
->retry
);
3420 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
)) {
3421 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3422 lpfc_nlp_set_state(vport
, ndlp
,
3423 NLP_STE_PLOGI_ISSUE
);
3425 lpfc_issue_els_plogi(vport
, did
, cmdiocb
->retry
);
3428 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3429 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_ADISC_ISSUE
);
3430 lpfc_issue_els_adisc(vport
, ndlp
, cmdiocb
->retry
);
3433 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3434 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_PRLI_ISSUE
);
3435 lpfc_issue_els_prli(vport
, ndlp
, cmdiocb
->retry
);
3438 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3439 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_LOGO_ISSUE
);
3440 lpfc_issue_els_logo(vport
, ndlp
, cmdiocb
->retry
);
3444 /* No retry ELS command <elsCmd> to remote NPORT <did> */
3446 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
3447 "0137 No retry ELS command x%x to remote "
3448 "NPORT x%x: Out of Resources: Error:x%x/%x\n",
3449 cmd
, did
, irsp
->ulpStatus
,
3450 irsp
->un
.ulpWord
[4]);
3453 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
3454 "0108 No retry ELS command x%x to remote "
3455 "NPORT x%x Retried:%d Error:x%x/%x\n",
3456 cmd
, did
, cmdiocb
->retry
, irsp
->ulpStatus
,
3457 irsp
->un
.ulpWord
[4]);
3463 * lpfc_els_free_data - Free lpfc dma buffer and data structure with an iocb
3464 * @phba: pointer to lpfc hba data structure.
3465 * @buf_ptr1: pointer to the lpfc DMA buffer data structure.
3467 * This routine releases the lpfc DMA (Direct Memory Access) buffer(s)
3468 * associated with a command IOCB back to the lpfc DMA buffer pool. It first
3469 * checks to see whether there is a lpfc DMA buffer associated with the
3470 * response of the command IOCB. If so, it will be released before releasing
3471 * the lpfc DMA buffer associated with the IOCB itself.
3474 * 0 - Successfully released lpfc DMA buffer (currently, always return 0)
3477 lpfc_els_free_data(struct lpfc_hba
*phba
, struct lpfc_dmabuf
*buf_ptr1
)
3479 struct lpfc_dmabuf
*buf_ptr
;
3481 /* Free the response before processing the command. */
3482 if (!list_empty(&buf_ptr1
->list
)) {
3483 list_remove_head(&buf_ptr1
->list
, buf_ptr
,
3486 lpfc_mbuf_free(phba
, buf_ptr
->virt
, buf_ptr
->phys
);
3489 lpfc_mbuf_free(phba
, buf_ptr1
->virt
, buf_ptr1
->phys
);
3495 * lpfc_els_free_bpl - Free lpfc dma buffer and data structure with bpl
3496 * @phba: pointer to lpfc hba data structure.
3497 * @buf_ptr: pointer to the lpfc dma buffer data structure.
3499 * This routine releases the lpfc Direct Memory Access (DMA) buffer
3500 * associated with a Buffer Pointer List (BPL) back to the lpfc DMA buffer
3504 * 0 - Successfully released lpfc DMA buffer (currently, always return 0)
3507 lpfc_els_free_bpl(struct lpfc_hba
*phba
, struct lpfc_dmabuf
*buf_ptr
)
3509 lpfc_mbuf_free(phba
, buf_ptr
->virt
, buf_ptr
->phys
);
3515 * lpfc_els_free_iocb - Free a command iocb and its associated resources
3516 * @phba: pointer to lpfc hba data structure.
3517 * @elsiocb: pointer to lpfc els command iocb data structure.
3519 * This routine frees a command IOCB and its associated resources. The
3520 * command IOCB data structure contains the reference to various associated
3521 * resources, these fields must be set to NULL if the associated reference
3523 * context1 - reference to ndlp
3524 * context2 - reference to cmd
3525 * context2->next - reference to rsp
3526 * context3 - reference to bpl
3528 * It first properly decrements the reference count held on ndlp for the
3529 * IOCB completion callback function. If LPFC_DELAY_MEM_FREE flag is not
3530 * set, it invokes the lpfc_els_free_data() routine to release the Direct
3531 * Memory Access (DMA) buffers associated with the IOCB. Otherwise, it
3532 * adds the DMA buffer the @phba data structure for the delayed release.
3533 * If reference to the Buffer Pointer List (BPL) is present, the
3534 * lpfc_els_free_bpl() routine is invoked to release the DMA memory
3535 * associated with BPL. Finally, the lpfc_sli_release_iocbq() routine is
3536 * invoked to release the IOCB data structure back to @phba IOCBQ list.
3539 * 0 - Success (currently, always return 0)
3542 lpfc_els_free_iocb(struct lpfc_hba
*phba
, struct lpfc_iocbq
*elsiocb
)
3544 struct lpfc_dmabuf
*buf_ptr
, *buf_ptr1
;
3545 struct lpfc_nodelist
*ndlp
;
3547 ndlp
= (struct lpfc_nodelist
*)elsiocb
->context1
;
3549 if (ndlp
->nlp_flag
& NLP_DEFER_RM
) {
3552 /* If the ndlp is not being used by another discovery
3555 if (!lpfc_nlp_not_used(ndlp
)) {
3556 /* If ndlp is being used by another discovery
3557 * thread, just clear NLP_DEFER_RM
3559 ndlp
->nlp_flag
&= ~NLP_DEFER_RM
;
3564 elsiocb
->context1
= NULL
;
3566 /* context2 = cmd, context2->next = rsp, context3 = bpl */
3567 if (elsiocb
->context2
) {
3568 if (elsiocb
->iocb_flag
& LPFC_DELAY_MEM_FREE
) {
3569 /* Firmware could still be in progress of DMAing
3570 * payload, so don't free data buffer till after
3573 elsiocb
->iocb_flag
&= ~LPFC_DELAY_MEM_FREE
;
3574 buf_ptr
= elsiocb
->context2
;
3575 elsiocb
->context2
= NULL
;
3578 spin_lock_irq(&phba
->hbalock
);
3579 if (!list_empty(&buf_ptr
->list
)) {
3580 list_remove_head(&buf_ptr
->list
,
3581 buf_ptr1
, struct lpfc_dmabuf
,
3583 INIT_LIST_HEAD(&buf_ptr1
->list
);
3584 list_add_tail(&buf_ptr1
->list
,
3588 INIT_LIST_HEAD(&buf_ptr
->list
);
3589 list_add_tail(&buf_ptr
->list
, &phba
->elsbuf
);
3591 spin_unlock_irq(&phba
->hbalock
);
3594 buf_ptr1
= (struct lpfc_dmabuf
*) elsiocb
->context2
;
3595 lpfc_els_free_data(phba
, buf_ptr1
);
3596 elsiocb
->context2
= NULL
;
3600 if (elsiocb
->context3
) {
3601 buf_ptr
= (struct lpfc_dmabuf
*) elsiocb
->context3
;
3602 lpfc_els_free_bpl(phba
, buf_ptr
);
3603 elsiocb
->context3
= NULL
;
3605 lpfc_sli_release_iocbq(phba
, elsiocb
);
3610 * lpfc_cmpl_els_logo_acc - Completion callback function to logo acc response
3611 * @phba: pointer to lpfc hba data structure.
3612 * @cmdiocb: pointer to lpfc command iocb data structure.
3613 * @rspiocb: pointer to lpfc response iocb data structure.
3615 * This routine is the completion callback function to the Logout (LOGO)
3616 * Accept (ACC) Response ELS command. This routine is invoked to indicate
3617 * the completion of the LOGO process. It invokes the lpfc_nlp_not_used() to
3618 * release the ndlp if it has the last reference remaining (reference count
3619 * is 1). If succeeded (meaning ndlp released), it sets the IOCB context1
3620 * field to NULL to inform the following lpfc_els_free_iocb() routine no
3621 * ndlp reference count needs to be decremented. Otherwise, the ndlp
3622 * reference use-count shall be decremented by the lpfc_els_free_iocb()
3623 * routine. Finally, the lpfc_els_free_iocb() is invoked to release the
3624 * IOCB data structure.
3627 lpfc_cmpl_els_logo_acc(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
3628 struct lpfc_iocbq
*rspiocb
)
3630 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) cmdiocb
->context1
;
3631 struct lpfc_vport
*vport
= cmdiocb
->vport
;
3634 irsp
= &rspiocb
->iocb
;
3635 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
3636 "ACC LOGO cmpl: status:x%x/x%x did:x%x",
3637 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4], ndlp
->nlp_DID
);
3638 /* ACC to LOGO completes to NPort <nlp_DID> */
3639 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
3640 "0109 ACC to LOGO completes to NPort x%x "
3641 "Data: x%x x%x x%x\n",
3642 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
3645 if (ndlp
->nlp_state
== NLP_STE_NPR_NODE
) {
3646 /* NPort Recovery mode or node is just allocated */
3647 if (!lpfc_nlp_not_used(ndlp
)) {
3648 /* If the ndlp is being used by another discovery
3649 * thread, just unregister the RPI.
3651 lpfc_unreg_rpi(vport
, ndlp
);
3653 /* Indicate the node has already released, should
3654 * not reference to it from within lpfc_els_free_iocb.
3656 cmdiocb
->context1
= NULL
;
3661 * The driver received a LOGO from the rport and has ACK'd it.
3662 * At this point, the driver is done so release the IOCB
3664 lpfc_els_free_iocb(phba
, cmdiocb
);
3668 * lpfc_mbx_cmpl_dflt_rpi - Completion callbk func for unreg dflt rpi mbox cmd
3669 * @phba: pointer to lpfc hba data structure.
3670 * @pmb: pointer to the driver internal queue element for mailbox command.
3672 * This routine is the completion callback function for unregister default
3673 * RPI (Remote Port Index) mailbox command to the @phba. It simply releases
3674 * the associated lpfc Direct Memory Access (DMA) buffer back to the pool and
3675 * decrements the ndlp reference count held for this completion callback
3676 * function. After that, it invokes the lpfc_nlp_not_used() to check
3677 * whether there is only one reference left on the ndlp. If so, it will
3678 * perform one more decrement and trigger the release of the ndlp.
3681 lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
3683 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
3684 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
3686 pmb
->context1
= NULL
;
3687 pmb
->context2
= NULL
;
3689 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3691 mempool_free(pmb
, phba
->mbox_mem_pool
);
3693 lpfc_printf_vlog(ndlp
->vport
, KERN_INFO
, LOG_NODE
,
3694 "0006 rpi%x DID:%x flg:%x %d map:%x %p\n",
3695 ndlp
->nlp_rpi
, ndlp
->nlp_DID
, ndlp
->nlp_flag
,
3696 kref_read(&ndlp
->kref
),
3697 ndlp
->nlp_usg_map
, ndlp
);
3698 if (NLP_CHK_NODE_ACT(ndlp
)) {
3700 /* This is the end of the default RPI cleanup logic for
3701 * this ndlp. If no other discovery threads are using
3702 * this ndlp, free all resources associated with it.
3704 lpfc_nlp_not_used(ndlp
);
3706 lpfc_drop_node(ndlp
->vport
, ndlp
);
3714 * lpfc_cmpl_els_rsp - Completion callback function for els response iocb cmd
3715 * @phba: pointer to lpfc hba data structure.
3716 * @cmdiocb: pointer to lpfc command iocb data structure.
3717 * @rspiocb: pointer to lpfc response iocb data structure.
3719 * This routine is the completion callback function for ELS Response IOCB
3720 * command. In normal case, this callback function just properly sets the
3721 * nlp_flag bitmap in the ndlp data structure, if the mbox command reference
3722 * field in the command IOCB is not NULL, the referred mailbox command will
3723 * be send out, and then invokes the lpfc_els_free_iocb() routine to release
3724 * the IOCB. Under error conditions, such as when a LS_RJT is returned or a
3725 * link down event occurred during the discovery, the lpfc_nlp_not_used()
3726 * routine shall be invoked trying to release the ndlp if no other threads
3727 * are currently referring it.
3730 lpfc_cmpl_els_rsp(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
3731 struct lpfc_iocbq
*rspiocb
)
3733 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) cmdiocb
->context1
;
3734 struct lpfc_vport
*vport
= ndlp
? ndlp
->vport
: NULL
;
3735 struct Scsi_Host
*shost
= vport
? lpfc_shost_from_vport(vport
) : NULL
;
3738 LPFC_MBOXQ_t
*mbox
= NULL
;
3739 struct lpfc_dmabuf
*mp
= NULL
;
3740 uint32_t ls_rjt
= 0;
3742 irsp
= &rspiocb
->iocb
;
3744 if (cmdiocb
->context_un
.mbox
)
3745 mbox
= cmdiocb
->context_un
.mbox
;
3747 /* First determine if this is a LS_RJT cmpl. Note, this callback
3748 * function can have cmdiocb->contest1 (ndlp) field set to NULL.
3750 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) cmdiocb
->context2
)->virt
);
3751 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
) &&
3752 (*((uint32_t *) (pcmd
)) == ELS_CMD_LS_RJT
)) {
3753 /* A LS_RJT associated with Default RPI cleanup has its own
3754 * separate code path.
3756 if (!(ndlp
->nlp_flag
& NLP_RM_DFLT_RPI
))
3760 /* Check to see if link went down during discovery */
3761 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
) || lpfc_els_chk_latt(vport
)) {
3763 mp
= (struct lpfc_dmabuf
*) mbox
->context1
;
3765 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3768 mempool_free(mbox
, phba
->mbox_mem_pool
);
3770 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
) &&
3771 (ndlp
->nlp_flag
& NLP_RM_DFLT_RPI
))
3772 if (lpfc_nlp_not_used(ndlp
)) {
3774 /* Indicate the node has already released,
3775 * should not reference to it from within
3776 * the routine lpfc_els_free_iocb.
3778 cmdiocb
->context1
= NULL
;
3783 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
3784 "ELS rsp cmpl: status:x%x/x%x did:x%x",
3785 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
3786 cmdiocb
->iocb
.un
.elsreq64
.remoteID
);
3787 /* ELS response tag <ulpIoTag> completes */
3788 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
3789 "0110 ELS response tag x%x completes "
3790 "Data: x%x x%x x%x x%x x%x x%x x%x\n",
3791 cmdiocb
->iocb
.ulpIoTag
, rspiocb
->iocb
.ulpStatus
,
3792 rspiocb
->iocb
.un
.ulpWord
[4], rspiocb
->iocb
.ulpTimeout
,
3793 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
3796 if ((rspiocb
->iocb
.ulpStatus
== 0)
3797 && (ndlp
->nlp_flag
& NLP_ACC_REGLOGIN
)) {
3798 lpfc_unreg_rpi(vport
, ndlp
);
3799 /* Increment reference count to ndlp to hold the
3800 * reference to ndlp for the callback function.
3802 mbox
->context2
= lpfc_nlp_get(ndlp
);
3803 mbox
->vport
= vport
;
3804 if (ndlp
->nlp_flag
& NLP_RM_DFLT_RPI
) {
3805 mbox
->mbox_flag
|= LPFC_MBX_IMED_UNREG
;
3806 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_dflt_rpi
;
3809 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_reg_login
;
3810 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3811 lpfc_nlp_set_state(vport
, ndlp
,
3812 NLP_STE_REG_LOGIN_ISSUE
);
3815 ndlp
->nlp_flag
|= NLP_REG_LOGIN_SEND
;
3816 if (lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
)
3817 != MBX_NOT_FINISHED
)
3820 /* Decrement the ndlp reference count we
3821 * set for this failed mailbox command.
3824 ndlp
->nlp_flag
&= ~NLP_REG_LOGIN_SEND
;
3826 /* ELS rsp: Cannot issue reg_login for <NPortid> */
3827 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
3828 "0138 ELS rsp: Cannot issue reg_login for x%x "
3829 "Data: x%x x%x x%x\n",
3830 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
3833 if (lpfc_nlp_not_used(ndlp
)) {
3835 /* Indicate node has already been released,
3836 * should not reference to it from within
3837 * the routine lpfc_els_free_iocb.
3839 cmdiocb
->context1
= NULL
;
3842 /* Do not drop node for lpfc_els_abort'ed ELS cmds */
3843 if (!lpfc_error_lost_link(irsp
) &&
3844 ndlp
->nlp_flag
& NLP_ACC_REGLOGIN
) {
3845 if (lpfc_nlp_not_used(ndlp
)) {
3847 /* Indicate node has already been
3848 * released, should not reference
3849 * to it from within the routine
3850 * lpfc_els_free_iocb.
3852 cmdiocb
->context1
= NULL
;
3856 mp
= (struct lpfc_dmabuf
*) mbox
->context1
;
3858 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3861 mempool_free(mbox
, phba
->mbox_mem_pool
);
3864 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
)) {
3865 spin_lock_irq(shost
->host_lock
);
3866 ndlp
->nlp_flag
&= ~(NLP_ACC_REGLOGIN
| NLP_RM_DFLT_RPI
);
3867 spin_unlock_irq(shost
->host_lock
);
3869 /* If the node is not being used by another discovery thread,
3870 * and we are sending a reject, we are done with it.
3871 * Release driver reference count here and free associated
3875 if (lpfc_nlp_not_used(ndlp
))
3876 /* Indicate node has already been released,
3877 * should not reference to it from within
3878 * the routine lpfc_els_free_iocb.
3880 cmdiocb
->context1
= NULL
;
3884 lpfc_els_free_iocb(phba
, cmdiocb
);
3889 * lpfc_els_rsp_acc - Prepare and issue an acc response iocb command
3890 * @vport: pointer to a host virtual N_Port data structure.
3891 * @flag: the els command code to be accepted.
3892 * @oldiocb: pointer to the original lpfc command iocb data structure.
3893 * @ndlp: pointer to a node-list data structure.
3894 * @mbox: pointer to the driver internal queue element for mailbox command.
3896 * This routine prepares and issues an Accept (ACC) response IOCB
3897 * command. It uses the @flag to properly set up the IOCB field for the
3898 * specific ACC response command to be issued and invokes the
3899 * lpfc_sli_issue_iocb() routine to send out ACC response IOCB. If a
3900 * @mbox pointer is passed in, it will be put into the context_un.mbox
3901 * field of the IOCB for the completion callback function to issue the
3902 * mailbox command to the HBA later when callback is invoked.
3904 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
3905 * will be incremented by 1 for holding the ndlp and the reference to ndlp
3906 * will be stored into the context1 field of the IOCB for the completion
3907 * callback function to the corresponding response ELS IOCB command.
3910 * 0 - Successfully issued acc response
3911 * 1 - Failed to issue acc response
3914 lpfc_els_rsp_acc(struct lpfc_vport
*vport
, uint32_t flag
,
3915 struct lpfc_iocbq
*oldiocb
, struct lpfc_nodelist
*ndlp
,
3918 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
3919 struct lpfc_hba
*phba
= vport
->phba
;
3922 struct lpfc_iocbq
*elsiocb
;
3924 struct serv_parm
*sp
;
3927 ELS_PKT
*els_pkt_ptr
;
3929 oldcmd
= &oldiocb
->iocb
;
3933 cmdsize
= sizeof(uint32_t);
3934 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
,
3935 ndlp
, ndlp
->nlp_DID
, ELS_CMD_ACC
);
3937 spin_lock_irq(shost
->host_lock
);
3938 ndlp
->nlp_flag
&= ~NLP_LOGO_ACC
;
3939 spin_unlock_irq(shost
->host_lock
);
3943 icmd
= &elsiocb
->iocb
;
3944 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
3945 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
3946 pcmd
= (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
3947 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
3948 pcmd
+= sizeof(uint32_t);
3950 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
3951 "Issue ACC: did:x%x flg:x%x",
3952 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
3956 cmdsize
= (sizeof(struct serv_parm
) + sizeof(uint32_t));
3957 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
,
3958 ndlp
, ndlp
->nlp_DID
, ELS_CMD_ACC
);
3962 icmd
= &elsiocb
->iocb
;
3963 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
3964 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
3965 pcmd
= (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
3968 elsiocb
->context_un
.mbox
= mbox
;
3970 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
3971 pcmd
+= sizeof(uint32_t);
3972 sp
= (struct serv_parm
*)pcmd
;
3974 if (flag
== ELS_CMD_FLOGI
) {
3975 /* Copy the received service parameters back */
3976 memcpy(sp
, &phba
->fc_fabparam
,
3977 sizeof(struct serv_parm
));
3979 /* Clear the F_Port bit */
3982 /* Mark all class service parameters as invalid */
3983 sp
->cls1
.classValid
= 0;
3984 sp
->cls2
.classValid
= 0;
3985 sp
->cls3
.classValid
= 0;
3986 sp
->cls4
.classValid
= 0;
3988 /* Copy our worldwide names */
3989 memcpy(&sp
->portName
, &vport
->fc_sparam
.portName
,
3990 sizeof(struct lpfc_name
));
3991 memcpy(&sp
->nodeName
, &vport
->fc_sparam
.nodeName
,
3992 sizeof(struct lpfc_name
));
3994 memcpy(pcmd
, &vport
->fc_sparam
,
3995 sizeof(struct serv_parm
));
3997 sp
->cmn
.valid_vendor_ver_level
= 0;
3998 memset(sp
->vendorVersion
, 0, sizeof(sp
->vendorVersion
));
4001 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
4002 "Issue ACC FLOGI/PLOGI: did:x%x flg:x%x",
4003 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
4006 cmdsize
= sizeof(uint32_t) + sizeof(PRLO
);
4007 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
,
4008 ndlp
, ndlp
->nlp_DID
, ELS_CMD_PRLO
);
4012 icmd
= &elsiocb
->iocb
;
4013 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
4014 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
4015 pcmd
= (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
4017 memcpy(pcmd
, ((struct lpfc_dmabuf
*) oldiocb
->context2
)->virt
,
4018 sizeof(uint32_t) + sizeof(PRLO
));
4019 *((uint32_t *) (pcmd
)) = ELS_CMD_PRLO_ACC
;
4020 els_pkt_ptr
= (ELS_PKT
*) pcmd
;
4021 els_pkt_ptr
->un
.prlo
.acceptRspCode
= PRLO_REQ_EXECUTED
;
4023 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
4024 "Issue ACC PRLO: did:x%x flg:x%x",
4025 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
4030 /* Xmit ELS ACC response tag <ulpIoTag> */
4031 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4032 "0128 Xmit ELS ACC response tag x%x, XRI: x%x, "
4033 "DID: x%x, nlp_flag: x%x nlp_state: x%x RPI: x%x "
4035 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
4036 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
4037 ndlp
->nlp_rpi
, vport
->fc_flag
);
4038 if (ndlp
->nlp_flag
& NLP_LOGO_ACC
) {
4039 spin_lock_irq(shost
->host_lock
);
4040 if (!(ndlp
->nlp_flag
& NLP_RPI_REGISTERED
||
4041 ndlp
->nlp_flag
& NLP_REG_LOGIN_SEND
))
4042 ndlp
->nlp_flag
&= ~NLP_LOGO_ACC
;
4043 spin_unlock_irq(shost
->host_lock
);
4044 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_logo_acc
;
4046 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
4049 phba
->fc_stat
.elsXmitACC
++;
4050 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
4051 if (rc
== IOCB_ERROR
) {
4052 lpfc_els_free_iocb(phba
, elsiocb
);
4059 * lpfc_els_rsp_reject - Propare and issue a rjt response iocb command
4060 * @vport: pointer to a virtual N_Port data structure.
4062 * @oldiocb: pointer to the original lpfc command iocb data structure.
4063 * @ndlp: pointer to a node-list data structure.
4064 * @mbox: pointer to the driver internal queue element for mailbox command.
4066 * This routine prepares and issue an Reject (RJT) response IOCB
4067 * command. If a @mbox pointer is passed in, it will be put into the
4068 * context_un.mbox field of the IOCB for the completion callback function
4069 * to issue to the HBA later.
4071 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4072 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4073 * will be stored into the context1 field of the IOCB for the completion
4074 * callback function to the reject response ELS IOCB command.
4077 * 0 - Successfully issued reject response
4078 * 1 - Failed to issue reject response
4081 lpfc_els_rsp_reject(struct lpfc_vport
*vport
, uint32_t rejectError
,
4082 struct lpfc_iocbq
*oldiocb
, struct lpfc_nodelist
*ndlp
,
4085 struct lpfc_hba
*phba
= vport
->phba
;
4088 struct lpfc_iocbq
*elsiocb
;
4093 cmdsize
= 2 * sizeof(uint32_t);
4094 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
, ndlp
,
4095 ndlp
->nlp_DID
, ELS_CMD_LS_RJT
);
4099 icmd
= &elsiocb
->iocb
;
4100 oldcmd
= &oldiocb
->iocb
;
4101 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
4102 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
4103 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
4105 *((uint32_t *) (pcmd
)) = ELS_CMD_LS_RJT
;
4106 pcmd
+= sizeof(uint32_t);
4107 *((uint32_t *) (pcmd
)) = rejectError
;
4110 elsiocb
->context_un
.mbox
= mbox
;
4112 /* Xmit ELS RJT <err> response tag <ulpIoTag> */
4113 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4114 "0129 Xmit ELS RJT x%x response tag x%x "
4115 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
4117 rejectError
, elsiocb
->iotag
,
4118 elsiocb
->iocb
.ulpContext
, ndlp
->nlp_DID
,
4119 ndlp
->nlp_flag
, ndlp
->nlp_state
, ndlp
->nlp_rpi
);
4120 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
4121 "Issue LS_RJT: did:x%x flg:x%x err:x%x",
4122 ndlp
->nlp_DID
, ndlp
->nlp_flag
, rejectError
);
4124 phba
->fc_stat
.elsXmitLSRJT
++;
4125 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
4126 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
4128 if (rc
== IOCB_ERROR
) {
4129 lpfc_els_free_iocb(phba
, elsiocb
);
4136 * lpfc_els_rsp_adisc_acc - Prepare and issue acc response to adisc iocb cmd
4137 * @vport: pointer to a virtual N_Port data structure.
4138 * @oldiocb: pointer to the original lpfc command iocb data structure.
4139 * @ndlp: pointer to a node-list data structure.
4141 * This routine prepares and issues an Accept (ACC) response to Address
4142 * Discover (ADISC) ELS command. It simply prepares the payload of the IOCB
4143 * and invokes the lpfc_sli_issue_iocb() routine to send out the command.
4145 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4146 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4147 * will be stored into the context1 field of the IOCB for the completion
4148 * callback function to the ADISC Accept response ELS IOCB command.
4151 * 0 - Successfully issued acc adisc response
4152 * 1 - Failed to issue adisc acc response
4155 lpfc_els_rsp_adisc_acc(struct lpfc_vport
*vport
, struct lpfc_iocbq
*oldiocb
,
4156 struct lpfc_nodelist
*ndlp
)
4158 struct lpfc_hba
*phba
= vport
->phba
;
4160 IOCB_t
*icmd
, *oldcmd
;
4161 struct lpfc_iocbq
*elsiocb
;
4166 cmdsize
= sizeof(uint32_t) + sizeof(ADISC
);
4167 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
, ndlp
,
4168 ndlp
->nlp_DID
, ELS_CMD_ACC
);
4172 icmd
= &elsiocb
->iocb
;
4173 oldcmd
= &oldiocb
->iocb
;
4174 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
4175 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
4177 /* Xmit ADISC ACC response tag <ulpIoTag> */
4178 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4179 "0130 Xmit ADISC ACC response iotag x%x xri: "
4180 "x%x, did x%x, nlp_flag x%x, nlp_state x%x rpi x%x\n",
4181 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
4182 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
4184 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
4186 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
4187 pcmd
+= sizeof(uint32_t);
4189 ap
= (ADISC
*) (pcmd
);
4190 ap
->hardAL_PA
= phba
->fc_pref_ALPA
;
4191 memcpy(&ap
->portName
, &vport
->fc_portname
, sizeof(struct lpfc_name
));
4192 memcpy(&ap
->nodeName
, &vport
->fc_nodename
, sizeof(struct lpfc_name
));
4193 ap
->DID
= be32_to_cpu(vport
->fc_myDID
);
4195 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
4196 "Issue ACC ADISC: did:x%x flg:x%x",
4197 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
4199 phba
->fc_stat
.elsXmitACC
++;
4200 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
4201 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
4202 if (rc
== IOCB_ERROR
) {
4203 lpfc_els_free_iocb(phba
, elsiocb
);
4210 * lpfc_els_rsp_prli_acc - Prepare and issue acc response to prli iocb cmd
4211 * @vport: pointer to a virtual N_Port data structure.
4212 * @oldiocb: pointer to the original lpfc command iocb data structure.
4213 * @ndlp: pointer to a node-list data structure.
4215 * This routine prepares and issues an Accept (ACC) response to Process
4216 * Login (PRLI) ELS command. It simply prepares the payload of the IOCB
4217 * and invokes the lpfc_sli_issue_iocb() routine to send out the command.
4219 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4220 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4221 * will be stored into the context1 field of the IOCB for the completion
4222 * callback function to the PRLI Accept response ELS IOCB command.
4225 * 0 - Successfully issued acc prli response
4226 * 1 - Failed to issue acc prli response
4229 lpfc_els_rsp_prli_acc(struct lpfc_vport
*vport
, struct lpfc_iocbq
*oldiocb
,
4230 struct lpfc_nodelist
*ndlp
)
4232 struct lpfc_hba
*phba
= vport
->phba
;
4237 struct lpfc_iocbq
*elsiocb
;
4242 cmdsize
= sizeof(uint32_t) + sizeof(PRLI
);
4243 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
, ndlp
,
4244 ndlp
->nlp_DID
, (ELS_CMD_ACC
| (ELS_CMD_PRLI
& ~ELS_RSP_MASK
)));
4248 icmd
= &elsiocb
->iocb
;
4249 oldcmd
= &oldiocb
->iocb
;
4250 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
4251 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
4253 /* Xmit PRLI ACC response tag <ulpIoTag> */
4254 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4255 "0131 Xmit PRLI ACC response tag x%x xri x%x, "
4256 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
4257 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
4258 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
4260 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
4262 *((uint32_t *) (pcmd
)) = (ELS_CMD_ACC
| (ELS_CMD_PRLI
& ~ELS_RSP_MASK
));
4263 pcmd
+= sizeof(uint32_t);
4265 /* For PRLI, remainder of payload is PRLI parameter page */
4266 memset(pcmd
, 0, sizeof(PRLI
));
4268 npr
= (PRLI
*) pcmd
;
4271 * If the remote port is a target and our firmware version is 3.20 or
4272 * later, set the following bits for FC-TAPE support.
4274 if ((ndlp
->nlp_type
& NLP_FCP_TARGET
) &&
4275 (vpd
->rev
.feaLevelHigh
>= 0x02)) {
4276 npr
->ConfmComplAllowed
= 1;
4278 npr
->TaskRetryIdReq
= 1;
4281 npr
->acceptRspCode
= PRLI_REQ_EXECUTED
;
4282 npr
->estabImagePair
= 1;
4283 npr
->readXferRdyDis
= 1;
4284 npr
->ConfmComplAllowed
= 1;
4286 npr
->prliType
= PRLI_FCP_TYPE
;
4287 npr
->initiatorFunc
= 1;
4289 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
4290 "Issue ACC PRLI: did:x%x flg:x%x",
4291 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
4293 phba
->fc_stat
.elsXmitACC
++;
4294 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
4296 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
4297 if (rc
== IOCB_ERROR
) {
4298 lpfc_els_free_iocb(phba
, elsiocb
);
4305 * lpfc_els_rsp_rnid_acc - Issue rnid acc response iocb command
4306 * @vport: pointer to a virtual N_Port data structure.
4307 * @format: rnid command format.
4308 * @oldiocb: pointer to the original lpfc command iocb data structure.
4309 * @ndlp: pointer to a node-list data structure.
4311 * This routine issues a Request Node Identification Data (RNID) Accept
4312 * (ACC) response. It constructs the RNID ACC response command according to
4313 * the proper @format and then calls the lpfc_sli_issue_iocb() routine to
4314 * issue the response. Note that this command does not need to hold the ndlp
4315 * reference count for the callback. So, the ndlp reference count taken by
4316 * the lpfc_prep_els_iocb() routine is put back and the context1 field of
4317 * IOCB is set to NULL to indicate to the lpfc_els_free_iocb() routine that
4318 * there is no ndlp reference available.
4320 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4321 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4322 * will be stored into the context1 field of the IOCB for the completion
4323 * callback function. However, for the RNID Accept Response ELS command,
4324 * this is undone later by this routine after the IOCB is allocated.
4327 * 0 - Successfully issued acc rnid response
4328 * 1 - Failed to issue acc rnid response
4331 lpfc_els_rsp_rnid_acc(struct lpfc_vport
*vport
, uint8_t format
,
4332 struct lpfc_iocbq
*oldiocb
, struct lpfc_nodelist
*ndlp
)
4334 struct lpfc_hba
*phba
= vport
->phba
;
4336 IOCB_t
*icmd
, *oldcmd
;
4337 struct lpfc_iocbq
*elsiocb
;
4342 cmdsize
= sizeof(uint32_t) + sizeof(uint32_t)
4343 + (2 * sizeof(struct lpfc_name
));
4345 cmdsize
+= sizeof(RNID_TOP_DISC
);
4347 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
, ndlp
,
4348 ndlp
->nlp_DID
, ELS_CMD_ACC
);
4352 icmd
= &elsiocb
->iocb
;
4353 oldcmd
= &oldiocb
->iocb
;
4354 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
4355 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
4357 /* Xmit RNID ACC response tag <ulpIoTag> */
4358 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4359 "0132 Xmit RNID ACC response tag x%x xri x%x\n",
4360 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
);
4361 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
4362 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
4363 pcmd
+= sizeof(uint32_t);
4365 memset(pcmd
, 0, sizeof(RNID
));
4366 rn
= (RNID
*) (pcmd
);
4367 rn
->Format
= format
;
4368 rn
->CommonLen
= (2 * sizeof(struct lpfc_name
));
4369 memcpy(&rn
->portName
, &vport
->fc_portname
, sizeof(struct lpfc_name
));
4370 memcpy(&rn
->nodeName
, &vport
->fc_nodename
, sizeof(struct lpfc_name
));
4373 rn
->SpecificLen
= 0;
4375 case RNID_TOPOLOGY_DISC
:
4376 rn
->SpecificLen
= sizeof(RNID_TOP_DISC
);
4377 memcpy(&rn
->un
.topologyDisc
.portName
,
4378 &vport
->fc_portname
, sizeof(struct lpfc_name
));
4379 rn
->un
.topologyDisc
.unitType
= RNID_HBA
;
4380 rn
->un
.topologyDisc
.physPort
= 0;
4381 rn
->un
.topologyDisc
.attachedNodes
= 0;
4385 rn
->SpecificLen
= 0;
4389 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
4390 "Issue ACC RNID: did:x%x flg:x%x",
4391 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
4393 phba
->fc_stat
.elsXmitACC
++;
4394 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
4396 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
4397 if (rc
== IOCB_ERROR
) {
4398 lpfc_els_free_iocb(phba
, elsiocb
);
4405 * lpfc_els_clear_rrq - Clear the rq that this rrq describes.
4406 * @vport: pointer to a virtual N_Port data structure.
4407 * @iocb: pointer to the lpfc command iocb data structure.
4408 * @ndlp: pointer to a node-list data structure.
4413 lpfc_els_clear_rrq(struct lpfc_vport
*vport
,
4414 struct lpfc_iocbq
*iocb
, struct lpfc_nodelist
*ndlp
)
4416 struct lpfc_hba
*phba
= vport
->phba
;
4421 struct lpfc_node_rrq
*prrq
;
4424 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) iocb
->context2
)->virt
);
4425 pcmd
+= sizeof(uint32_t);
4426 rrq
= (struct RRQ
*)pcmd
;
4427 rrq
->rrq_exchg
= be32_to_cpu(rrq
->rrq_exchg
);
4428 rxid
= bf_get(rrq_rxid
, rrq
);
4430 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4431 "2883 Clear RRQ for SID:x%x OXID:x%x RXID:x%x"
4433 be32_to_cpu(bf_get(rrq_did
, rrq
)),
4434 bf_get(rrq_oxid
, rrq
),
4436 iocb
->iotag
, iocb
->iocb
.ulpContext
);
4438 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
4439 "Clear RRQ: did:x%x flg:x%x exchg:x%.08x",
4440 ndlp
->nlp_DID
, ndlp
->nlp_flag
, rrq
->rrq_exchg
);
4441 if (vport
->fc_myDID
== be32_to_cpu(bf_get(rrq_did
, rrq
)))
4442 xri
= bf_get(rrq_oxid
, rrq
);
4445 prrq
= lpfc_get_active_rrq(vport
, xri
, ndlp
->nlp_DID
);
4447 lpfc_clr_rrq_active(phba
, xri
, prrq
);
4452 * lpfc_els_rsp_echo_acc - Issue echo acc response
4453 * @vport: pointer to a virtual N_Port data structure.
4454 * @data: pointer to echo data to return in the accept.
4455 * @oldiocb: pointer to the original lpfc command iocb data structure.
4456 * @ndlp: pointer to a node-list data structure.
4459 * 0 - Successfully issued acc echo response
4460 * 1 - Failed to issue acc echo response
4463 lpfc_els_rsp_echo_acc(struct lpfc_vport
*vport
, uint8_t *data
,
4464 struct lpfc_iocbq
*oldiocb
, struct lpfc_nodelist
*ndlp
)
4466 struct lpfc_hba
*phba
= vport
->phba
;
4467 struct lpfc_iocbq
*elsiocb
;
4472 cmdsize
= oldiocb
->iocb
.unsli3
.rcvsli3
.acc_len
;
4474 /* The accumulated length can exceed the BPL_SIZE. For
4475 * now, use this as the limit
4477 if (cmdsize
> LPFC_BPL_SIZE
)
4478 cmdsize
= LPFC_BPL_SIZE
;
4479 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
, ndlp
,
4480 ndlp
->nlp_DID
, ELS_CMD_ACC
);
4484 elsiocb
->iocb
.ulpContext
= oldiocb
->iocb
.ulpContext
; /* Xri / rx_id */
4485 elsiocb
->iocb
.unsli3
.rcvsli3
.ox_id
= oldiocb
->iocb
.unsli3
.rcvsli3
.ox_id
;
4487 /* Xmit ECHO ACC response tag <ulpIoTag> */
4488 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4489 "2876 Xmit ECHO ACC response tag x%x xri x%x\n",
4490 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
);
4491 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
4492 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
4493 pcmd
+= sizeof(uint32_t);
4494 memcpy(pcmd
, data
, cmdsize
- sizeof(uint32_t));
4496 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
4497 "Issue ACC ECHO: did:x%x flg:x%x",
4498 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
4500 phba
->fc_stat
.elsXmitACC
++;
4501 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
4503 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
4504 if (rc
== IOCB_ERROR
) {
4505 lpfc_els_free_iocb(phba
, elsiocb
);
4512 * lpfc_els_disc_adisc - Issue remaining adisc iocbs to npr nodes of a vport
4513 * @vport: pointer to a host virtual N_Port data structure.
4515 * This routine issues Address Discover (ADISC) ELS commands to those
4516 * N_Ports which are in node port recovery state and ADISC has not been issued
4517 * for the @vport. Each time an ELS ADISC IOCB is issued by invoking the
4518 * lpfc_issue_els_adisc() routine, the per @vport number of discover count
4519 * (num_disc_nodes) shall be incremented. If the num_disc_nodes reaches a
4520 * pre-configured threshold (cfg_discovery_threads), the @vport fc_flag will
4521 * be marked with FC_NLP_MORE bit and the process of issuing remaining ADISC
4522 * IOCBs quit for later pick up. On the other hand, after walking through
4523 * all the ndlps with the @vport and there is none ADISC IOCB issued, the
4524 * @vport fc_flag shall be cleared with FC_NLP_MORE bit indicating there is
4525 * no more ADISC need to be sent.
4528 * The number of N_Ports with adisc issued.
4531 lpfc_els_disc_adisc(struct lpfc_vport
*vport
)
4533 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4534 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
4537 /* go thru NPR nodes and issue any remaining ELS ADISCs */
4538 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
, nlp_listp
) {
4539 if (!NLP_CHK_NODE_ACT(ndlp
))
4541 if (ndlp
->nlp_state
== NLP_STE_NPR_NODE
&&
4542 (ndlp
->nlp_flag
& NLP_NPR_2B_DISC
) != 0 &&
4543 (ndlp
->nlp_flag
& NLP_NPR_ADISC
) != 0) {
4544 spin_lock_irq(shost
->host_lock
);
4545 ndlp
->nlp_flag
&= ~NLP_NPR_ADISC
;
4546 spin_unlock_irq(shost
->host_lock
);
4547 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
4548 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_ADISC_ISSUE
);
4549 lpfc_issue_els_adisc(vport
, ndlp
, 0);
4551 vport
->num_disc_nodes
++;
4552 if (vport
->num_disc_nodes
>=
4553 vport
->cfg_discovery_threads
) {
4554 spin_lock_irq(shost
->host_lock
);
4555 vport
->fc_flag
|= FC_NLP_MORE
;
4556 spin_unlock_irq(shost
->host_lock
);
4561 if (sentadisc
== 0) {
4562 spin_lock_irq(shost
->host_lock
);
4563 vport
->fc_flag
&= ~FC_NLP_MORE
;
4564 spin_unlock_irq(shost
->host_lock
);
4570 * lpfc_els_disc_plogi - Issue plogi for all npr nodes of a vport before adisc
4571 * @vport: pointer to a host virtual N_Port data structure.
4573 * This routine issues Port Login (PLOGI) ELS commands to all the N_Ports
4574 * which are in node port recovery state, with a @vport. Each time an ELS
4575 * ADISC PLOGI IOCB is issued by invoking the lpfc_issue_els_plogi() routine,
4576 * the per @vport number of discover count (num_disc_nodes) shall be
4577 * incremented. If the num_disc_nodes reaches a pre-configured threshold
4578 * (cfg_discovery_threads), the @vport fc_flag will be marked with FC_NLP_MORE
4579 * bit set and quit the process of issuing remaining ADISC PLOGIN IOCBs for
4580 * later pick up. On the other hand, after walking through all the ndlps with
4581 * the @vport and there is none ADISC PLOGI IOCB issued, the @vport fc_flag
4582 * shall be cleared with the FC_NLP_MORE bit indicating there is no more ADISC
4583 * PLOGI need to be sent.
4586 * The number of N_Ports with plogi issued.
4589 lpfc_els_disc_plogi(struct lpfc_vport
*vport
)
4591 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4592 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
4595 /* go thru NPR nodes and issue any remaining ELS PLOGIs */
4596 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
, nlp_listp
) {
4597 if (!NLP_CHK_NODE_ACT(ndlp
))
4599 if (ndlp
->nlp_state
== NLP_STE_NPR_NODE
&&
4600 (ndlp
->nlp_flag
& NLP_NPR_2B_DISC
) != 0 &&
4601 (ndlp
->nlp_flag
& NLP_DELAY_TMO
) == 0 &&
4602 (ndlp
->nlp_flag
& NLP_NPR_ADISC
) == 0) {
4603 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
4604 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_PLOGI_ISSUE
);
4605 lpfc_issue_els_plogi(vport
, ndlp
->nlp_DID
, 0);
4607 vport
->num_disc_nodes
++;
4608 if (vport
->num_disc_nodes
>=
4609 vport
->cfg_discovery_threads
) {
4610 spin_lock_irq(shost
->host_lock
);
4611 vport
->fc_flag
|= FC_NLP_MORE
;
4612 spin_unlock_irq(shost
->host_lock
);
4618 lpfc_set_disctmo(vport
);
4621 spin_lock_irq(shost
->host_lock
);
4622 vport
->fc_flag
&= ~FC_NLP_MORE
;
4623 spin_unlock_irq(shost
->host_lock
);
4629 lpfc_rdp_res_link_service(struct fc_rdp_link_service_desc
*desc
,
4633 desc
->tag
= cpu_to_be32(RDP_LINK_SERVICE_DESC_TAG
);
4634 desc
->payload
.els_req
= word0
;
4635 desc
->length
= cpu_to_be32(sizeof(desc
->payload
));
4637 return sizeof(struct fc_rdp_link_service_desc
);
4641 lpfc_rdp_res_sfp_desc(struct fc_rdp_sfp_desc
*desc
,
4642 uint8_t *page_a0
, uint8_t *page_a2
)
4644 uint16_t wavelength
;
4645 uint16_t temperature
;
4651 struct sff_trasnceiver_codes_byte4
*trasn_code_byte4
;
4652 struct sff_trasnceiver_codes_byte5
*trasn_code_byte5
;
4654 desc
->tag
= cpu_to_be32(RDP_SFP_DESC_TAG
);
4656 trasn_code_byte4
= (struct sff_trasnceiver_codes_byte4
*)
4657 &page_a0
[SSF_TRANSCEIVER_CODE_B4
];
4658 trasn_code_byte5
= (struct sff_trasnceiver_codes_byte5
*)
4659 &page_a0
[SSF_TRANSCEIVER_CODE_B5
];
4661 if ((trasn_code_byte4
->fc_sw_laser
) ||
4662 (trasn_code_byte5
->fc_sw_laser_sl
) ||
4663 (trasn_code_byte5
->fc_sw_laser_sn
)) { /* check if its short WL */
4664 flag
|= (SFP_FLAG_PT_SWLASER
<< SFP_FLAG_PT_SHIFT
);
4665 } else if (trasn_code_byte4
->fc_lw_laser
) {
4666 wavelength
= (page_a0
[SSF_WAVELENGTH_B1
] << 8) |
4667 page_a0
[SSF_WAVELENGTH_B0
];
4668 if (wavelength
== SFP_WAVELENGTH_LC1310
)
4669 flag
|= SFP_FLAG_PT_LWLASER_LC1310
<< SFP_FLAG_PT_SHIFT
;
4670 if (wavelength
== SFP_WAVELENGTH_LL1550
)
4671 flag
|= SFP_FLAG_PT_LWLASER_LL1550
<< SFP_FLAG_PT_SHIFT
;
4673 /* check if its SFP+ */
4674 flag
|= ((page_a0
[SSF_IDENTIFIER
] == SFF_PG0_IDENT_SFP
) ?
4675 SFP_FLAG_CT_SFP_PLUS
: SFP_FLAG_CT_UNKNOWN
)
4676 << SFP_FLAG_CT_SHIFT
;
4678 /* check if its OPTICAL */
4679 flag
|= ((page_a0
[SSF_CONNECTOR
] == SFF_PG0_CONNECTOR_LC
) ?
4680 SFP_FLAG_IS_OPTICAL_PORT
: 0)
4681 << SFP_FLAG_IS_OPTICAL_SHIFT
;
4683 temperature
= (page_a2
[SFF_TEMPERATURE_B1
] << 8 |
4684 page_a2
[SFF_TEMPERATURE_B0
]);
4685 vcc
= (page_a2
[SFF_VCC_B1
] << 8 |
4686 page_a2
[SFF_VCC_B0
]);
4687 tx_power
= (page_a2
[SFF_TXPOWER_B1
] << 8 |
4688 page_a2
[SFF_TXPOWER_B0
]);
4689 tx_bias
= (page_a2
[SFF_TX_BIAS_CURRENT_B1
] << 8 |
4690 page_a2
[SFF_TX_BIAS_CURRENT_B0
]);
4691 rx_power
= (page_a2
[SFF_RXPOWER_B1
] << 8 |
4692 page_a2
[SFF_RXPOWER_B0
]);
4693 desc
->sfp_info
.temperature
= cpu_to_be16(temperature
);
4694 desc
->sfp_info
.rx_power
= cpu_to_be16(rx_power
);
4695 desc
->sfp_info
.tx_bias
= cpu_to_be16(tx_bias
);
4696 desc
->sfp_info
.tx_power
= cpu_to_be16(tx_power
);
4697 desc
->sfp_info
.vcc
= cpu_to_be16(vcc
);
4699 desc
->sfp_info
.flags
= cpu_to_be16(flag
);
4700 desc
->length
= cpu_to_be32(sizeof(desc
->sfp_info
));
4702 return sizeof(struct fc_rdp_sfp_desc
);
4706 lpfc_rdp_res_link_error(struct fc_rdp_link_error_status_desc
*desc
,
4711 desc
->tag
= cpu_to_be32(RDP_LINK_ERROR_STATUS_DESC_TAG
);
4713 type
= VN_PT_PHY_PF_PORT
<< VN_PT_PHY_SHIFT
;
4715 desc
->info
.port_type
= cpu_to_be32(type
);
4717 desc
->info
.link_status
.link_failure_cnt
=
4718 cpu_to_be32(stat
->linkFailureCnt
);
4719 desc
->info
.link_status
.loss_of_synch_cnt
=
4720 cpu_to_be32(stat
->lossSyncCnt
);
4721 desc
->info
.link_status
.loss_of_signal_cnt
=
4722 cpu_to_be32(stat
->lossSignalCnt
);
4723 desc
->info
.link_status
.primitive_seq_proto_err
=
4724 cpu_to_be32(stat
->primSeqErrCnt
);
4725 desc
->info
.link_status
.invalid_trans_word
=
4726 cpu_to_be32(stat
->invalidXmitWord
);
4727 desc
->info
.link_status
.invalid_crc_cnt
= cpu_to_be32(stat
->crcCnt
);
4729 desc
->length
= cpu_to_be32(sizeof(desc
->info
));
4731 return sizeof(struct fc_rdp_link_error_status_desc
);
4735 lpfc_rdp_res_bbc_desc(struct fc_rdp_bbc_desc
*desc
, READ_LNK_VAR
*stat
,
4736 struct lpfc_vport
*vport
)
4740 desc
->tag
= cpu_to_be32(RDP_BBC_DESC_TAG
);
4742 bbCredit
= vport
->fc_sparam
.cmn
.bbCreditLsb
|
4743 (vport
->fc_sparam
.cmn
.bbCreditMsb
<< 8);
4744 desc
->bbc_info
.port_bbc
= cpu_to_be32(bbCredit
);
4745 if (vport
->phba
->fc_topology
!= LPFC_TOPOLOGY_LOOP
) {
4746 bbCredit
= vport
->phba
->fc_fabparam
.cmn
.bbCreditLsb
|
4747 (vport
->phba
->fc_fabparam
.cmn
.bbCreditMsb
<< 8);
4748 desc
->bbc_info
.attached_port_bbc
= cpu_to_be32(bbCredit
);
4750 desc
->bbc_info
.attached_port_bbc
= 0;
4753 desc
->bbc_info
.rtt
= 0;
4754 desc
->length
= cpu_to_be32(sizeof(desc
->bbc_info
));
4756 return sizeof(struct fc_rdp_bbc_desc
);
4760 lpfc_rdp_res_oed_temp_desc(struct lpfc_hba
*phba
,
4761 struct fc_rdp_oed_sfp_desc
*desc
, uint8_t *page_a2
)
4765 desc
->tag
= cpu_to_be32(RDP_OED_DESC_TAG
);
4767 desc
->oed_info
.hi_alarm
= page_a2
[SSF_TEMP_HIGH_ALARM
];
4768 desc
->oed_info
.lo_alarm
= page_a2
[SSF_TEMP_LOW_ALARM
];
4769 desc
->oed_info
.hi_warning
= page_a2
[SSF_TEMP_HIGH_WARNING
];
4770 desc
->oed_info
.lo_warning
= page_a2
[SSF_TEMP_LOW_WARNING
];
4772 if (phba
->sfp_alarm
& LPFC_TRANSGRESSION_HIGH_TEMPERATURE
)
4773 flags
|= RDP_OET_HIGH_ALARM
;
4774 if (phba
->sfp_alarm
& LPFC_TRANSGRESSION_LOW_TEMPERATURE
)
4775 flags
|= RDP_OET_LOW_ALARM
;
4776 if (phba
->sfp_warning
& LPFC_TRANSGRESSION_HIGH_TEMPERATURE
)
4777 flags
|= RDP_OET_HIGH_WARNING
;
4778 if (phba
->sfp_warning
& LPFC_TRANSGRESSION_LOW_TEMPERATURE
)
4779 flags
|= RDP_OET_LOW_WARNING
;
4781 flags
|= ((0xf & RDP_OED_TEMPERATURE
) << RDP_OED_TYPE_SHIFT
);
4782 desc
->oed_info
.function_flags
= cpu_to_be32(flags
);
4783 desc
->length
= cpu_to_be32(sizeof(desc
->oed_info
));
4784 return sizeof(struct fc_rdp_oed_sfp_desc
);
4788 lpfc_rdp_res_oed_voltage_desc(struct lpfc_hba
*phba
,
4789 struct fc_rdp_oed_sfp_desc
*desc
,
4794 desc
->tag
= cpu_to_be32(RDP_OED_DESC_TAG
);
4796 desc
->oed_info
.hi_alarm
= page_a2
[SSF_VOLTAGE_HIGH_ALARM
];
4797 desc
->oed_info
.lo_alarm
= page_a2
[SSF_VOLTAGE_LOW_ALARM
];
4798 desc
->oed_info
.hi_warning
= page_a2
[SSF_VOLTAGE_HIGH_WARNING
];
4799 desc
->oed_info
.lo_warning
= page_a2
[SSF_VOLTAGE_LOW_WARNING
];
4801 if (phba
->sfp_alarm
& LPFC_TRANSGRESSION_HIGH_VOLTAGE
)
4802 flags
|= RDP_OET_HIGH_ALARM
;
4803 if (phba
->sfp_alarm
& LPFC_TRANSGRESSION_LOW_VOLTAGE
)
4804 flags
|= RDP_OET_LOW_ALARM
;
4805 if (phba
->sfp_warning
& LPFC_TRANSGRESSION_HIGH_VOLTAGE
)
4806 flags
|= RDP_OET_HIGH_WARNING
;
4807 if (phba
->sfp_warning
& LPFC_TRANSGRESSION_LOW_VOLTAGE
)
4808 flags
|= RDP_OET_LOW_WARNING
;
4810 flags
|= ((0xf & RDP_OED_VOLTAGE
) << RDP_OED_TYPE_SHIFT
);
4811 desc
->oed_info
.function_flags
= cpu_to_be32(flags
);
4812 desc
->length
= cpu_to_be32(sizeof(desc
->oed_info
));
4813 return sizeof(struct fc_rdp_oed_sfp_desc
);
4817 lpfc_rdp_res_oed_txbias_desc(struct lpfc_hba
*phba
,
4818 struct fc_rdp_oed_sfp_desc
*desc
,
4823 desc
->tag
= cpu_to_be32(RDP_OED_DESC_TAG
);
4825 desc
->oed_info
.hi_alarm
= page_a2
[SSF_BIAS_HIGH_ALARM
];
4826 desc
->oed_info
.lo_alarm
= page_a2
[SSF_BIAS_LOW_ALARM
];
4827 desc
->oed_info
.hi_warning
= page_a2
[SSF_BIAS_HIGH_WARNING
];
4828 desc
->oed_info
.lo_warning
= page_a2
[SSF_BIAS_LOW_WARNING
];
4830 if (phba
->sfp_alarm
& LPFC_TRANSGRESSION_HIGH_TXBIAS
)
4831 flags
|= RDP_OET_HIGH_ALARM
;
4832 if (phba
->sfp_alarm
& LPFC_TRANSGRESSION_LOW_TXBIAS
)
4833 flags
|= RDP_OET_LOW_ALARM
;
4834 if (phba
->sfp_warning
& LPFC_TRANSGRESSION_HIGH_TXBIAS
)
4835 flags
|= RDP_OET_HIGH_WARNING
;
4836 if (phba
->sfp_warning
& LPFC_TRANSGRESSION_LOW_TXBIAS
)
4837 flags
|= RDP_OET_LOW_WARNING
;
4839 flags
|= ((0xf & RDP_OED_TXBIAS
) << RDP_OED_TYPE_SHIFT
);
4840 desc
->oed_info
.function_flags
= cpu_to_be32(flags
);
4841 desc
->length
= cpu_to_be32(sizeof(desc
->oed_info
));
4842 return sizeof(struct fc_rdp_oed_sfp_desc
);
4846 lpfc_rdp_res_oed_txpower_desc(struct lpfc_hba
*phba
,
4847 struct fc_rdp_oed_sfp_desc
*desc
,
4852 desc
->tag
= cpu_to_be32(RDP_OED_DESC_TAG
);
4854 desc
->oed_info
.hi_alarm
= page_a2
[SSF_TXPOWER_HIGH_ALARM
];
4855 desc
->oed_info
.lo_alarm
= page_a2
[SSF_TXPOWER_LOW_ALARM
];
4856 desc
->oed_info
.hi_warning
= page_a2
[SSF_TXPOWER_HIGH_WARNING
];
4857 desc
->oed_info
.lo_warning
= page_a2
[SSF_TXPOWER_LOW_WARNING
];
4859 if (phba
->sfp_alarm
& LPFC_TRANSGRESSION_HIGH_TXPOWER
)
4860 flags
|= RDP_OET_HIGH_ALARM
;
4861 if (phba
->sfp_alarm
& LPFC_TRANSGRESSION_LOW_TXPOWER
)
4862 flags
|= RDP_OET_LOW_ALARM
;
4863 if (phba
->sfp_warning
& LPFC_TRANSGRESSION_HIGH_TXPOWER
)
4864 flags
|= RDP_OET_HIGH_WARNING
;
4865 if (phba
->sfp_warning
& LPFC_TRANSGRESSION_LOW_TXPOWER
)
4866 flags
|= RDP_OET_LOW_WARNING
;
4868 flags
|= ((0xf & RDP_OED_TXPOWER
) << RDP_OED_TYPE_SHIFT
);
4869 desc
->oed_info
.function_flags
= cpu_to_be32(flags
);
4870 desc
->length
= cpu_to_be32(sizeof(desc
->oed_info
));
4871 return sizeof(struct fc_rdp_oed_sfp_desc
);
4876 lpfc_rdp_res_oed_rxpower_desc(struct lpfc_hba
*phba
,
4877 struct fc_rdp_oed_sfp_desc
*desc
,
4882 desc
->tag
= cpu_to_be32(RDP_OED_DESC_TAG
);
4884 desc
->oed_info
.hi_alarm
= page_a2
[SSF_RXPOWER_HIGH_ALARM
];
4885 desc
->oed_info
.lo_alarm
= page_a2
[SSF_RXPOWER_LOW_ALARM
];
4886 desc
->oed_info
.hi_warning
= page_a2
[SSF_RXPOWER_HIGH_WARNING
];
4887 desc
->oed_info
.lo_warning
= page_a2
[SSF_RXPOWER_LOW_WARNING
];
4889 if (phba
->sfp_alarm
& LPFC_TRANSGRESSION_HIGH_RXPOWER
)
4890 flags
|= RDP_OET_HIGH_ALARM
;
4891 if (phba
->sfp_alarm
& LPFC_TRANSGRESSION_LOW_RXPOWER
)
4892 flags
|= RDP_OET_LOW_ALARM
;
4893 if (phba
->sfp_warning
& LPFC_TRANSGRESSION_HIGH_RXPOWER
)
4894 flags
|= RDP_OET_HIGH_WARNING
;
4895 if (phba
->sfp_warning
& LPFC_TRANSGRESSION_LOW_RXPOWER
)
4896 flags
|= RDP_OET_LOW_WARNING
;
4898 flags
|= ((0xf & RDP_OED_RXPOWER
) << RDP_OED_TYPE_SHIFT
);
4899 desc
->oed_info
.function_flags
= cpu_to_be32(flags
);
4900 desc
->length
= cpu_to_be32(sizeof(desc
->oed_info
));
4901 return sizeof(struct fc_rdp_oed_sfp_desc
);
4905 lpfc_rdp_res_opd_desc(struct fc_rdp_opd_sfp_desc
*desc
,
4906 uint8_t *page_a0
, struct lpfc_vport
*vport
)
4908 desc
->tag
= cpu_to_be32(RDP_OPD_DESC_TAG
);
4909 memcpy(desc
->opd_info
.vendor_name
, &page_a0
[SSF_VENDOR_NAME
], 16);
4910 memcpy(desc
->opd_info
.model_number
, &page_a0
[SSF_VENDOR_PN
], 16);
4911 memcpy(desc
->opd_info
.serial_number
, &page_a0
[SSF_VENDOR_SN
], 16);
4912 memcpy(desc
->opd_info
.revision
, &page_a0
[SSF_VENDOR_REV
], 2);
4913 memcpy(desc
->opd_info
.date
, &page_a0
[SSF_DATE_CODE
], 8);
4914 desc
->length
= cpu_to_be32(sizeof(desc
->opd_info
));
4915 return sizeof(struct fc_rdp_opd_sfp_desc
);
4919 lpfc_rdp_res_fec_desc(struct fc_fec_rdp_desc
*desc
, READ_LNK_VAR
*stat
)
4921 if (bf_get(lpfc_read_link_stat_gec2
, stat
) == 0)
4923 desc
->tag
= cpu_to_be32(RDP_FEC_DESC_TAG
);
4925 desc
->info
.CorrectedBlocks
=
4926 cpu_to_be32(stat
->fecCorrBlkCount
);
4927 desc
->info
.UncorrectableBlocks
=
4928 cpu_to_be32(stat
->fecUncorrBlkCount
);
4930 desc
->length
= cpu_to_be32(sizeof(desc
->info
));
4932 return sizeof(struct fc_fec_rdp_desc
);
4936 lpfc_rdp_res_speed(struct fc_rdp_port_speed_desc
*desc
, struct lpfc_hba
*phba
)
4938 uint16_t rdp_cap
= 0;
4941 desc
->tag
= cpu_to_be32(RDP_PORT_SPEED_DESC_TAG
);
4943 switch (phba
->fc_linkspeed
) {
4944 case LPFC_LINK_SPEED_1GHZ
:
4945 rdp_speed
= RDP_PS_1GB
;
4947 case LPFC_LINK_SPEED_2GHZ
:
4948 rdp_speed
= RDP_PS_2GB
;
4950 case LPFC_LINK_SPEED_4GHZ
:
4951 rdp_speed
= RDP_PS_4GB
;
4953 case LPFC_LINK_SPEED_8GHZ
:
4954 rdp_speed
= RDP_PS_8GB
;
4956 case LPFC_LINK_SPEED_10GHZ
:
4957 rdp_speed
= RDP_PS_10GB
;
4959 case LPFC_LINK_SPEED_16GHZ
:
4960 rdp_speed
= RDP_PS_16GB
;
4962 case LPFC_LINK_SPEED_32GHZ
:
4963 rdp_speed
= RDP_PS_32GB
;
4966 rdp_speed
= RDP_PS_UNKNOWN
;
4970 desc
->info
.port_speed
.speed
= cpu_to_be16(rdp_speed
);
4972 if (phba
->lmt
& LMT_32Gb
)
4973 rdp_cap
|= RDP_PS_32GB
;
4974 if (phba
->lmt
& LMT_16Gb
)
4975 rdp_cap
|= RDP_PS_16GB
;
4976 if (phba
->lmt
& LMT_10Gb
)
4977 rdp_cap
|= RDP_PS_10GB
;
4978 if (phba
->lmt
& LMT_8Gb
)
4979 rdp_cap
|= RDP_PS_8GB
;
4980 if (phba
->lmt
& LMT_4Gb
)
4981 rdp_cap
|= RDP_PS_4GB
;
4982 if (phba
->lmt
& LMT_2Gb
)
4983 rdp_cap
|= RDP_PS_2GB
;
4984 if (phba
->lmt
& LMT_1Gb
)
4985 rdp_cap
|= RDP_PS_1GB
;
4988 rdp_cap
= RDP_CAP_UNKNOWN
;
4989 if (phba
->cfg_link_speed
!= LPFC_USER_LINK_SPEED_AUTO
)
4990 rdp_cap
|= RDP_CAP_USER_CONFIGURED
;
4992 desc
->info
.port_speed
.capabilities
= cpu_to_be16(rdp_cap
);
4993 desc
->length
= cpu_to_be32(sizeof(desc
->info
));
4994 return sizeof(struct fc_rdp_port_speed_desc
);
4998 lpfc_rdp_res_diag_port_names(struct fc_rdp_port_name_desc
*desc
,
4999 struct lpfc_hba
*phba
)
5002 desc
->tag
= cpu_to_be32(RDP_PORT_NAMES_DESC_TAG
);
5004 memcpy(desc
->port_names
.wwnn
, phba
->wwnn
,
5005 sizeof(desc
->port_names
.wwnn
));
5007 memcpy(desc
->port_names
.wwpn
, &phba
->wwpn
,
5008 sizeof(desc
->port_names
.wwpn
));
5010 desc
->length
= cpu_to_be32(sizeof(desc
->port_names
));
5011 return sizeof(struct fc_rdp_port_name_desc
);
5015 lpfc_rdp_res_attach_port_names(struct fc_rdp_port_name_desc
*desc
,
5016 struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
5019 desc
->tag
= cpu_to_be32(RDP_PORT_NAMES_DESC_TAG
);
5020 if (vport
->fc_flag
& FC_FABRIC
) {
5021 memcpy(desc
->port_names
.wwnn
, &vport
->fabric_nodename
,
5022 sizeof(desc
->port_names
.wwnn
));
5024 memcpy(desc
->port_names
.wwpn
, &vport
->fabric_portname
,
5025 sizeof(desc
->port_names
.wwpn
));
5026 } else { /* Point to Point */
5027 memcpy(desc
->port_names
.wwnn
, &ndlp
->nlp_nodename
,
5028 sizeof(desc
->port_names
.wwnn
));
5030 memcpy(desc
->port_names
.wwnn
, &ndlp
->nlp_portname
,
5031 sizeof(desc
->port_names
.wwpn
));
5034 desc
->length
= cpu_to_be32(sizeof(desc
->port_names
));
5035 return sizeof(struct fc_rdp_port_name_desc
);
5039 lpfc_els_rdp_cmpl(struct lpfc_hba
*phba
, struct lpfc_rdp_context
*rdp_context
,
5042 struct lpfc_nodelist
*ndlp
= rdp_context
->ndlp
;
5043 struct lpfc_vport
*vport
= ndlp
->vport
;
5044 struct lpfc_iocbq
*elsiocb
;
5045 struct ulp_bde64
*bpl
;
5048 struct ls_rjt
*stat
;
5049 struct fc_rdp_res_frame
*rdp_res
;
5050 uint32_t cmdsize
, len
;
5054 if (status
!= SUCCESS
)
5057 /* This will change once we know the true size of the RDP payload */
5058 cmdsize
= sizeof(struct fc_rdp_res_frame
);
5060 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
,
5061 lpfc_max_els_tries
, rdp_context
->ndlp
,
5062 rdp_context
->ndlp
->nlp_DID
, ELS_CMD_ACC
);
5065 goto free_rdp_context
;
5067 icmd
= &elsiocb
->iocb
;
5068 icmd
->ulpContext
= rdp_context
->rx_id
;
5069 icmd
->unsli3
.rcvsli3
.ox_id
= rdp_context
->ox_id
;
5071 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
5072 "2171 Xmit RDP response tag x%x xri x%x, "
5073 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x",
5074 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
5075 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
5077 rdp_res
= (struct fc_rdp_res_frame
*)
5078 (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
5079 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
5080 memset(pcmd
, 0, sizeof(struct fc_rdp_res_frame
));
5081 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
5083 /* Update Alarm and Warning */
5084 flag_ptr
= (uint16_t *)(rdp_context
->page_a2
+ SSF_ALARM_FLAGS
);
5085 phba
->sfp_alarm
|= *flag_ptr
;
5086 flag_ptr
= (uint16_t *)(rdp_context
->page_a2
+ SSF_WARNING_FLAGS
);
5087 phba
->sfp_warning
|= *flag_ptr
;
5089 /* For RDP payload */
5091 len
+= lpfc_rdp_res_link_service((struct fc_rdp_link_service_desc
*)
5092 (len
+ pcmd
), ELS_CMD_RDP
);
5094 len
+= lpfc_rdp_res_sfp_desc((struct fc_rdp_sfp_desc
*)(len
+ pcmd
),
5095 rdp_context
->page_a0
, rdp_context
->page_a2
);
5096 len
+= lpfc_rdp_res_speed((struct fc_rdp_port_speed_desc
*)(len
+ pcmd
),
5098 len
+= lpfc_rdp_res_link_error((struct fc_rdp_link_error_status_desc
*)
5099 (len
+ pcmd
), &rdp_context
->link_stat
);
5100 len
+= lpfc_rdp_res_diag_port_names((struct fc_rdp_port_name_desc
*)
5101 (len
+ pcmd
), phba
);
5102 len
+= lpfc_rdp_res_attach_port_names((struct fc_rdp_port_name_desc
*)
5103 (len
+ pcmd
), vport
, ndlp
);
5104 len
+= lpfc_rdp_res_fec_desc((struct fc_fec_rdp_desc
*)(len
+ pcmd
),
5105 &rdp_context
->link_stat
);
5106 /* Check if nport is logged, BZ190632 */
5107 if (!(ndlp
->nlp_flag
& NLP_RPI_REGISTERED
))
5108 goto lpfc_skip_descriptor
;
5110 len
+= lpfc_rdp_res_bbc_desc((struct fc_rdp_bbc_desc
*)(len
+ pcmd
),
5111 &rdp_context
->link_stat
, vport
);
5112 len
+= lpfc_rdp_res_oed_temp_desc(phba
,
5113 (struct fc_rdp_oed_sfp_desc
*)(len
+ pcmd
),
5114 rdp_context
->page_a2
);
5115 len
+= lpfc_rdp_res_oed_voltage_desc(phba
,
5116 (struct fc_rdp_oed_sfp_desc
*)(len
+ pcmd
),
5117 rdp_context
->page_a2
);
5118 len
+= lpfc_rdp_res_oed_txbias_desc(phba
,
5119 (struct fc_rdp_oed_sfp_desc
*)(len
+ pcmd
),
5120 rdp_context
->page_a2
);
5121 len
+= lpfc_rdp_res_oed_txpower_desc(phba
,
5122 (struct fc_rdp_oed_sfp_desc
*)(len
+ pcmd
),
5123 rdp_context
->page_a2
);
5124 len
+= lpfc_rdp_res_oed_rxpower_desc(phba
,
5125 (struct fc_rdp_oed_sfp_desc
*)(len
+ pcmd
),
5126 rdp_context
->page_a2
);
5127 len
+= lpfc_rdp_res_opd_desc((struct fc_rdp_opd_sfp_desc
*)(len
+ pcmd
),
5128 rdp_context
->page_a0
, vport
);
5130 lpfc_skip_descriptor
:
5131 rdp_res
->length
= cpu_to_be32(len
- 8);
5132 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
5134 /* Now that we know the true size of the payload, update the BPL */
5135 bpl
= (struct ulp_bde64
*)
5136 (((struct lpfc_dmabuf
*)(elsiocb
->context3
))->virt
);
5137 bpl
->tus
.f
.bdeSize
= len
;
5138 bpl
->tus
.f
.bdeFlags
= 0;
5139 bpl
->tus
.w
= le32_to_cpu(bpl
->tus
.w
);
5141 phba
->fc_stat
.elsXmitACC
++;
5142 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
5143 if (rc
== IOCB_ERROR
)
5144 lpfc_els_free_iocb(phba
, elsiocb
);
5150 cmdsize
= 2 * sizeof(uint32_t);
5151 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, lpfc_max_els_tries
,
5152 ndlp
, ndlp
->nlp_DID
, ELS_CMD_LS_RJT
);
5155 goto free_rdp_context
;
5157 icmd
= &elsiocb
->iocb
;
5158 icmd
->ulpContext
= rdp_context
->rx_id
;
5159 icmd
->unsli3
.rcvsli3
.ox_id
= rdp_context
->ox_id
;
5160 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
5162 *((uint32_t *) (pcmd
)) = ELS_CMD_LS_RJT
;
5163 stat
= (struct ls_rjt
*)(pcmd
+ sizeof(uint32_t));
5164 stat
->un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
5166 phba
->fc_stat
.elsXmitLSRJT
++;
5167 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
5168 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
5170 if (rc
== IOCB_ERROR
)
5171 lpfc_els_free_iocb(phba
, elsiocb
);
5177 lpfc_get_rdp_info(struct lpfc_hba
*phba
, struct lpfc_rdp_context
*rdp_context
)
5179 LPFC_MBOXQ_t
*mbox
= NULL
;
5182 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
5184 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
| LOG_ELS
,
5185 "7105 failed to allocate mailbox memory");
5189 if (lpfc_sli4_dump_page_a0(phba
, mbox
))
5190 goto prep_mbox_fail
;
5191 mbox
->vport
= rdp_context
->ndlp
->vport
;
5192 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_rdp_page_a0
;
5193 mbox
->context2
= (struct lpfc_rdp_context
*) rdp_context
;
5194 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
5195 if (rc
== MBX_NOT_FINISHED
)
5196 goto issue_mbox_fail
;
5202 mempool_free(mbox
, phba
->mbox_mem_pool
);
5207 * lpfc_els_rcv_rdp - Process an unsolicited RDP ELS.
5208 * @vport: pointer to a host virtual N_Port data structure.
5209 * @cmdiocb: pointer to lpfc command iocb data structure.
5210 * @ndlp: pointer to a node-list data structure.
5212 * This routine processes an unsolicited RDP(Read Diagnostic Parameters)
5213 * IOCB. First, the payload of the unsolicited RDP is checked.
5214 * Then it will (1) send MBX_DUMP_MEMORY, Embedded DMP_LMSD sub command TYPE-3
5215 * for Page A0, (2) send MBX_DUMP_MEMORY, DMP_LMSD for Page A2,
5216 * (3) send MBX_READ_LNK_STAT to get link stat, (4) Call lpfc_els_rdp_cmpl
5217 * gather all data and send RDP response.
5220 * 0 - Sent the acc response
5221 * 1 - Sent the reject response.
5224 lpfc_els_rcv_rdp(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5225 struct lpfc_nodelist
*ndlp
)
5227 struct lpfc_hba
*phba
= vport
->phba
;
5228 struct lpfc_dmabuf
*pcmd
;
5229 uint8_t rjt_err
, rjt_expl
= LSEXP_NOTHING_MORE
;
5230 struct fc_rdp_req_frame
*rdp_req
;
5231 struct lpfc_rdp_context
*rdp_context
;
5235 if (phba
->sli_rev
< LPFC_SLI_REV4
||
5236 (bf_get(lpfc_sli_intf_if_type
,
5237 &phba
->sli4_hba
.sli_intf
) !=
5238 LPFC_SLI_INTF_IF_TYPE_2
)) {
5239 rjt_err
= LSRJT_UNABLE_TPC
;
5240 rjt_expl
= LSEXP_REQ_UNSUPPORTED
;
5244 if (phba
->sli_rev
< LPFC_SLI_REV4
|| (phba
->hba_flag
& HBA_FCOE_MODE
)) {
5245 rjt_err
= LSRJT_UNABLE_TPC
;
5246 rjt_expl
= LSEXP_REQ_UNSUPPORTED
;
5250 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
5251 rdp_req
= (struct fc_rdp_req_frame
*) pcmd
->virt
;
5254 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
5255 "2422 ELS RDP Request "
5256 "dec len %d tag x%x port_id %d len %d\n",
5257 be32_to_cpu(rdp_req
->rdp_des_length
),
5258 be32_to_cpu(rdp_req
->nport_id_desc
.tag
),
5259 be32_to_cpu(rdp_req
->nport_id_desc
.nport_id
),
5260 be32_to_cpu(rdp_req
->nport_id_desc
.length
));
5262 if (!(ndlp
->nlp_flag
& NLP_RPI_REGISTERED
) &&
5263 !phba
->cfg_enable_SmartSAN
) {
5264 rjt_err
= LSRJT_UNABLE_TPC
;
5265 rjt_expl
= LSEXP_PORT_LOGIN_REQ
;
5268 if (sizeof(struct fc_rdp_nport_desc
) !=
5269 be32_to_cpu(rdp_req
->rdp_des_length
))
5271 if (RDP_N_PORT_DESC_TAG
!= be32_to_cpu(rdp_req
->nport_id_desc
.tag
))
5273 if (RDP_NPORT_ID_SIZE
!=
5274 be32_to_cpu(rdp_req
->nport_id_desc
.length
))
5276 rdp_context
= kzalloc(sizeof(struct lpfc_rdp_context
), GFP_KERNEL
);
5278 rjt_err
= LSRJT_UNABLE_TPC
;
5282 cmd
= &cmdiocb
->iocb
;
5283 rdp_context
->ndlp
= lpfc_nlp_get(ndlp
);
5284 rdp_context
->ox_id
= cmd
->unsli3
.rcvsli3
.ox_id
;
5285 rdp_context
->rx_id
= cmd
->ulpContext
;
5286 rdp_context
->cmpl
= lpfc_els_rdp_cmpl
;
5287 if (lpfc_get_rdp_info(phba
, rdp_context
)) {
5288 lpfc_printf_vlog(ndlp
->vport
, KERN_WARNING
, LOG_ELS
,
5289 "2423 Unable to send mailbox");
5291 rjt_err
= LSRJT_UNABLE_TPC
;
5299 rjt_err
= LSRJT_LOGICAL_ERR
;
5302 memset(&stat
, 0, sizeof(stat
));
5303 stat
.un
.b
.lsRjtRsnCode
= rjt_err
;
5304 stat
.un
.b
.lsRjtRsnCodeExp
= rjt_expl
;
5305 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
, NULL
);
5311 lpfc_els_lcb_rsp(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
5316 struct lpfc_iocbq
*elsiocb
;
5317 struct lpfc_nodelist
*ndlp
;
5318 struct ls_rjt
*stat
;
5319 union lpfc_sli4_cfg_shdr
*shdr
;
5320 struct lpfc_lcb_context
*lcb_context
;
5321 struct fc_lcb_res_frame
*lcb_res
;
5322 uint32_t cmdsize
, shdr_status
, shdr_add_status
;
5326 lcb_context
= (struct lpfc_lcb_context
*)pmb
->context1
;
5327 ndlp
= lcb_context
->ndlp
;
5328 pmb
->context1
= NULL
;
5329 pmb
->context2
= NULL
;
5331 shdr
= (union lpfc_sli4_cfg_shdr
*)
5332 &pmb
->u
.mqe
.un
.beacon_config
.header
.cfg_shdr
;
5333 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
5334 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
5336 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
,
5337 "0194 SET_BEACON_CONFIG mailbox "
5338 "completed with status x%x add_status x%x,"
5339 " mbx status x%x\n",
5340 shdr_status
, shdr_add_status
, mb
->mbxStatus
);
5342 if (mb
->mbxStatus
&& !(shdr_status
&&
5343 shdr_add_status
== ADD_STATUS_OPERATION_ALREADY_ACTIVE
)) {
5344 mempool_free(pmb
, phba
->mbox_mem_pool
);
5348 mempool_free(pmb
, phba
->mbox_mem_pool
);
5349 cmdsize
= sizeof(struct fc_lcb_res_frame
);
5350 elsiocb
= lpfc_prep_els_iocb(phba
->pport
, 0, cmdsize
,
5351 lpfc_max_els_tries
, ndlp
,
5352 ndlp
->nlp_DID
, ELS_CMD_ACC
);
5354 /* Decrement the ndlp reference count from previous mbox command */
5358 goto free_lcb_context
;
5360 lcb_res
= (struct fc_lcb_res_frame
*)
5361 (((struct lpfc_dmabuf
*)elsiocb
->context2
)->virt
);
5363 icmd
= &elsiocb
->iocb
;
5364 icmd
->ulpContext
= lcb_context
->rx_id
;
5365 icmd
->unsli3
.rcvsli3
.ox_id
= lcb_context
->ox_id
;
5367 pcmd
= (uint8_t *)(((struct lpfc_dmabuf
*)elsiocb
->context2
)->virt
);
5368 *((uint32_t *)(pcmd
)) = ELS_CMD_ACC
;
5369 lcb_res
->lcb_sub_command
= lcb_context
->sub_command
;
5370 lcb_res
->lcb_type
= lcb_context
->type
;
5371 lcb_res
->lcb_frequency
= lcb_context
->frequency
;
5372 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
5373 phba
->fc_stat
.elsXmitACC
++;
5374 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
5375 if (rc
== IOCB_ERROR
)
5376 lpfc_els_free_iocb(phba
, elsiocb
);
5382 cmdsize
= sizeof(struct fc_lcb_res_frame
);
5383 elsiocb
= lpfc_prep_els_iocb(phba
->pport
, 0, cmdsize
,
5384 lpfc_max_els_tries
, ndlp
,
5385 ndlp
->nlp_DID
, ELS_CMD_LS_RJT
);
5388 goto free_lcb_context
;
5390 icmd
= &elsiocb
->iocb
;
5391 icmd
->ulpContext
= lcb_context
->rx_id
;
5392 icmd
->unsli3
.rcvsli3
.ox_id
= lcb_context
->ox_id
;
5393 pcmd
= (uint8_t *)(((struct lpfc_dmabuf
*)elsiocb
->context2
)->virt
);
5395 *((uint32_t *)(pcmd
)) = ELS_CMD_LS_RJT
;
5396 stat
= (struct ls_rjt
*)(pcmd
+ sizeof(uint32_t));
5397 stat
->un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
5399 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
5400 phba
->fc_stat
.elsXmitLSRJT
++;
5401 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
5402 if (rc
== IOCB_ERROR
)
5403 lpfc_els_free_iocb(phba
, elsiocb
);
5409 lpfc_sli4_set_beacon(struct lpfc_vport
*vport
,
5410 struct lpfc_lcb_context
*lcb_context
,
5411 uint32_t beacon_state
)
5413 struct lpfc_hba
*phba
= vport
->phba
;
5414 LPFC_MBOXQ_t
*mbox
= NULL
;
5418 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
5422 len
= sizeof(struct lpfc_mbx_set_beacon_config
) -
5423 sizeof(struct lpfc_sli4_cfg_mhdr
);
5424 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
5425 LPFC_MBOX_OPCODE_SET_BEACON_CONFIG
, len
,
5426 LPFC_SLI4_MBX_EMBED
);
5427 mbox
->context1
= (void *)lcb_context
;
5428 mbox
->vport
= phba
->pport
;
5429 mbox
->mbox_cmpl
= lpfc_els_lcb_rsp
;
5430 bf_set(lpfc_mbx_set_beacon_port_num
, &mbox
->u
.mqe
.un
.beacon_config
,
5431 phba
->sli4_hba
.physical_port
);
5432 bf_set(lpfc_mbx_set_beacon_state
, &mbox
->u
.mqe
.un
.beacon_config
,
5434 bf_set(lpfc_mbx_set_beacon_port_type
, &mbox
->u
.mqe
.un
.beacon_config
, 1);
5435 bf_set(lpfc_mbx_set_beacon_duration
, &mbox
->u
.mqe
.un
.beacon_config
, 0);
5436 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
5437 if (rc
== MBX_NOT_FINISHED
) {
5438 mempool_free(mbox
, phba
->mbox_mem_pool
);
5447 * lpfc_els_rcv_lcb - Process an unsolicited LCB
5448 * @vport: pointer to a host virtual N_Port data structure.
5449 * @cmdiocb: pointer to lpfc command iocb data structure.
5450 * @ndlp: pointer to a node-list data structure.
5452 * This routine processes an unsolicited LCB(LINK CABLE BEACON) IOCB.
5453 * First, the payload of the unsolicited LCB is checked.
5454 * Then based on Subcommand beacon will either turn on or off.
5457 * 0 - Sent the acc response
5458 * 1 - Sent the reject response.
5461 lpfc_els_rcv_lcb(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5462 struct lpfc_nodelist
*ndlp
)
5464 struct lpfc_hba
*phba
= vport
->phba
;
5465 struct lpfc_dmabuf
*pcmd
;
5467 struct fc_lcb_request_frame
*beacon
;
5468 struct lpfc_lcb_context
*lcb_context
;
5469 uint8_t state
, rjt_err
;
5472 pcmd
= (struct lpfc_dmabuf
*)cmdiocb
->context2
;
5473 lp
= (uint8_t *)pcmd
->virt
;
5474 beacon
= (struct fc_lcb_request_frame
*)pcmd
->virt
;
5476 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
5477 "0192 ELS LCB Data x%x x%x x%x x%x sub x%x "
5478 "type x%x frequency %x duration x%x\n",
5479 lp
[0], lp
[1], lp
[2],
5480 beacon
->lcb_command
,
5481 beacon
->lcb_sub_command
,
5483 beacon
->lcb_frequency
,
5484 be16_to_cpu(beacon
->lcb_duration
));
5486 if (phba
->sli_rev
< LPFC_SLI_REV4
||
5487 (bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
) !=
5488 LPFC_SLI_INTF_IF_TYPE_2
)) {
5489 rjt_err
= LSRJT_CMD_UNSUPPORTED
;
5493 if (phba
->hba_flag
& HBA_FCOE_MODE
) {
5494 rjt_err
= LSRJT_CMD_UNSUPPORTED
;
5497 if (beacon
->lcb_frequency
== 0) {
5498 rjt_err
= LSRJT_CMD_UNSUPPORTED
;
5501 if ((beacon
->lcb_type
!= LPFC_LCB_GREEN
) &&
5502 (beacon
->lcb_type
!= LPFC_LCB_AMBER
)) {
5503 rjt_err
= LSRJT_CMD_UNSUPPORTED
;
5506 if ((beacon
->lcb_sub_command
!= LPFC_LCB_ON
) &&
5507 (beacon
->lcb_sub_command
!= LPFC_LCB_OFF
)) {
5508 rjt_err
= LSRJT_CMD_UNSUPPORTED
;
5511 if ((beacon
->lcb_sub_command
== LPFC_LCB_ON
) &&
5512 (beacon
->lcb_type
!= LPFC_LCB_GREEN
) &&
5513 (beacon
->lcb_type
!= LPFC_LCB_AMBER
)) {
5514 rjt_err
= LSRJT_CMD_UNSUPPORTED
;
5517 if (be16_to_cpu(beacon
->lcb_duration
) != 0) {
5518 rjt_err
= LSRJT_CMD_UNSUPPORTED
;
5522 lcb_context
= kmalloc(sizeof(*lcb_context
), GFP_KERNEL
);
5524 rjt_err
= LSRJT_UNABLE_TPC
;
5528 state
= (beacon
->lcb_sub_command
== LPFC_LCB_ON
) ? 1 : 0;
5529 lcb_context
->sub_command
= beacon
->lcb_sub_command
;
5530 lcb_context
->type
= beacon
->lcb_type
;
5531 lcb_context
->frequency
= beacon
->lcb_frequency
;
5532 lcb_context
->ox_id
= cmdiocb
->iocb
.unsli3
.rcvsli3
.ox_id
;
5533 lcb_context
->rx_id
= cmdiocb
->iocb
.ulpContext
;
5534 lcb_context
->ndlp
= lpfc_nlp_get(ndlp
);
5535 if (lpfc_sli4_set_beacon(vport
, lcb_context
, state
)) {
5536 lpfc_printf_vlog(ndlp
->vport
, KERN_ERR
,
5537 LOG_ELS
, "0193 failed to send mail box");
5540 rjt_err
= LSRJT_UNABLE_TPC
;
5545 memset(&stat
, 0, sizeof(stat
));
5546 stat
.un
.b
.lsRjtRsnCode
= rjt_err
;
5547 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
, NULL
);
5553 * lpfc_els_flush_rscn - Clean up any rscn activities with a vport
5554 * @vport: pointer to a host virtual N_Port data structure.
5556 * This routine cleans up any Registration State Change Notification
5557 * (RSCN) activity with a @vport. Note that the fc_rscn_flush flag of the
5558 * @vport together with the host_lock is used to prevent multiple thread
5559 * trying to access the RSCN array on a same @vport at the same time.
5562 lpfc_els_flush_rscn(struct lpfc_vport
*vport
)
5564 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
5565 struct lpfc_hba
*phba
= vport
->phba
;
5568 spin_lock_irq(shost
->host_lock
);
5569 if (vport
->fc_rscn_flush
) {
5570 /* Another thread is walking fc_rscn_id_list on this vport */
5571 spin_unlock_irq(shost
->host_lock
);
5574 /* Indicate we are walking lpfc_els_flush_rscn on this vport */
5575 vport
->fc_rscn_flush
= 1;
5576 spin_unlock_irq(shost
->host_lock
);
5578 for (i
= 0; i
< vport
->fc_rscn_id_cnt
; i
++) {
5579 lpfc_in_buf_free(phba
, vport
->fc_rscn_id_list
[i
]);
5580 vport
->fc_rscn_id_list
[i
] = NULL
;
5582 spin_lock_irq(shost
->host_lock
);
5583 vport
->fc_rscn_id_cnt
= 0;
5584 vport
->fc_flag
&= ~(FC_RSCN_MODE
| FC_RSCN_DISCOVERY
);
5585 spin_unlock_irq(shost
->host_lock
);
5586 lpfc_can_disctmo(vport
);
5587 /* Indicate we are done walking this fc_rscn_id_list */
5588 vport
->fc_rscn_flush
= 0;
5592 * lpfc_rscn_payload_check - Check whether there is a pending rscn to a did
5593 * @vport: pointer to a host virtual N_Port data structure.
5594 * @did: remote destination port identifier.
5596 * This routine checks whether there is any pending Registration State
5597 * Configuration Notification (RSCN) to a @did on @vport.
5600 * None zero - The @did matched with a pending rscn
5601 * 0 - not able to match @did with a pending rscn
5604 lpfc_rscn_payload_check(struct lpfc_vport
*vport
, uint32_t did
)
5609 uint32_t payload_len
, i
;
5610 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
5612 ns_did
.un
.word
= did
;
5614 /* Never match fabric nodes for RSCNs */
5615 if ((did
& Fabric_DID_MASK
) == Fabric_DID_MASK
)
5618 /* If we are doing a FULL RSCN rediscovery, match everything */
5619 if (vport
->fc_flag
& FC_RSCN_DISCOVERY
)
5622 spin_lock_irq(shost
->host_lock
);
5623 if (vport
->fc_rscn_flush
) {
5624 /* Another thread is walking fc_rscn_id_list on this vport */
5625 spin_unlock_irq(shost
->host_lock
);
5628 /* Indicate we are walking fc_rscn_id_list on this vport */
5629 vport
->fc_rscn_flush
= 1;
5630 spin_unlock_irq(shost
->host_lock
);
5631 for (i
= 0; i
< vport
->fc_rscn_id_cnt
; i
++) {
5632 lp
= vport
->fc_rscn_id_list
[i
]->virt
;
5633 payload_len
= be32_to_cpu(*lp
++ & ~ELS_CMD_MASK
);
5634 payload_len
-= sizeof(uint32_t); /* take off word 0 */
5635 while (payload_len
) {
5636 rscn_did
.un
.word
= be32_to_cpu(*lp
++);
5637 payload_len
-= sizeof(uint32_t);
5638 switch (rscn_did
.un
.b
.resv
& RSCN_ADDRESS_FORMAT_MASK
) {
5639 case RSCN_ADDRESS_FORMAT_PORT
:
5640 if ((ns_did
.un
.b
.domain
== rscn_did
.un
.b
.domain
)
5641 && (ns_did
.un
.b
.area
== rscn_did
.un
.b
.area
)
5642 && (ns_did
.un
.b
.id
== rscn_did
.un
.b
.id
))
5643 goto return_did_out
;
5645 case RSCN_ADDRESS_FORMAT_AREA
:
5646 if ((ns_did
.un
.b
.domain
== rscn_did
.un
.b
.domain
)
5647 && (ns_did
.un
.b
.area
== rscn_did
.un
.b
.area
))
5648 goto return_did_out
;
5650 case RSCN_ADDRESS_FORMAT_DOMAIN
:
5651 if (ns_did
.un
.b
.domain
== rscn_did
.un
.b
.domain
)
5652 goto return_did_out
;
5654 case RSCN_ADDRESS_FORMAT_FABRIC
:
5655 goto return_did_out
;
5659 /* Indicate we are done with walking fc_rscn_id_list on this vport */
5660 vport
->fc_rscn_flush
= 0;
5663 /* Indicate we are done with walking fc_rscn_id_list on this vport */
5664 vport
->fc_rscn_flush
= 0;
5669 * lpfc_rscn_recovery_check - Send recovery event to vport nodes matching rscn
5670 * @vport: pointer to a host virtual N_Port data structure.
5672 * This routine sends recovery (NLP_EVT_DEVICE_RECOVERY) event to the
5673 * state machine for a @vport's nodes that are with pending RSCN (Registration
5674 * State Change Notification).
5677 * 0 - Successful (currently alway return 0)
5680 lpfc_rscn_recovery_check(struct lpfc_vport
*vport
)
5682 struct lpfc_nodelist
*ndlp
= NULL
;
5684 /* Move all affected nodes by pending RSCNs to NPR state. */
5685 list_for_each_entry(ndlp
, &vport
->fc_nodes
, nlp_listp
) {
5686 if (!NLP_CHK_NODE_ACT(ndlp
) ||
5687 (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
) ||
5688 !lpfc_rscn_payload_check(vport
, ndlp
->nlp_DID
))
5690 lpfc_disc_state_machine(vport
, ndlp
, NULL
,
5691 NLP_EVT_DEVICE_RECOVERY
);
5692 lpfc_cancel_retry_delay_tmo(vport
, ndlp
);
5698 * lpfc_send_rscn_event - Send an RSCN event to management application
5699 * @vport: pointer to a host virtual N_Port data structure.
5700 * @cmdiocb: pointer to lpfc command iocb data structure.
5702 * lpfc_send_rscn_event sends an RSCN netlink event to management
5706 lpfc_send_rscn_event(struct lpfc_vport
*vport
,
5707 struct lpfc_iocbq
*cmdiocb
)
5709 struct lpfc_dmabuf
*pcmd
;
5710 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
5711 uint32_t *payload_ptr
;
5712 uint32_t payload_len
;
5713 struct lpfc_rscn_event_header
*rscn_event_data
;
5715 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
5716 payload_ptr
= (uint32_t *) pcmd
->virt
;
5717 payload_len
= be32_to_cpu(*payload_ptr
& ~ELS_CMD_MASK
);
5719 rscn_event_data
= kmalloc(sizeof(struct lpfc_rscn_event_header
) +
5720 payload_len
, GFP_KERNEL
);
5721 if (!rscn_event_data
) {
5722 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
5723 "0147 Failed to allocate memory for RSCN event\n");
5726 rscn_event_data
->event_type
= FC_REG_RSCN_EVENT
;
5727 rscn_event_data
->payload_length
= payload_len
;
5728 memcpy(rscn_event_data
->rscn_payload
, payload_ptr
,
5731 fc_host_post_vendor_event(shost
,
5732 fc_get_event_number(),
5733 sizeof(struct lpfc_rscn_event_header
) + payload_len
,
5734 (char *)rscn_event_data
,
5737 kfree(rscn_event_data
);
5741 * lpfc_els_rcv_rscn - Process an unsolicited rscn iocb
5742 * @vport: pointer to a host virtual N_Port data structure.
5743 * @cmdiocb: pointer to lpfc command iocb data structure.
5744 * @ndlp: pointer to a node-list data structure.
5746 * This routine processes an unsolicited RSCN (Registration State Change
5747 * Notification) IOCB. First, the payload of the unsolicited RSCN is walked
5748 * to invoke fc_host_post_event() routine to the FC transport layer. If the
5749 * discover state machine is about to begin discovery, it just accepts the
5750 * RSCN and the discovery process will satisfy the RSCN. If this RSCN only
5751 * contains N_Port IDs for other vports on this HBA, it just accepts the
5752 * RSCN and ignore processing it. If the state machine is in the recovery
5753 * state, the fc_rscn_id_list of this @vport is walked and the
5754 * lpfc_rscn_recovery_check() routine is invoked to send recovery event for
5755 * all nodes that match RSCN payload. Otherwise, the lpfc_els_handle_rscn()
5756 * routine is invoked to handle the RSCN event.
5759 * 0 - Just sent the acc response
5760 * 1 - Sent the acc response and waited for name server completion
5763 lpfc_els_rcv_rscn(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5764 struct lpfc_nodelist
*ndlp
)
5766 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
5767 struct lpfc_hba
*phba
= vport
->phba
;
5768 struct lpfc_dmabuf
*pcmd
;
5769 uint32_t *lp
, *datap
;
5770 uint32_t payload_len
, length
, nportid
, *cmd
;
5772 int rscn_id
= 0, hba_id
= 0;
5775 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
5776 lp
= (uint32_t *) pcmd
->virt
;
5778 payload_len
= be32_to_cpu(*lp
++ & ~ELS_CMD_MASK
);
5779 payload_len
-= sizeof(uint32_t); /* take off word 0 */
5781 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
5782 "0214 RSCN received Data: x%x x%x x%x x%x\n",
5783 vport
->fc_flag
, payload_len
, *lp
,
5784 vport
->fc_rscn_id_cnt
);
5786 /* Send an RSCN event to the management application */
5787 lpfc_send_rscn_event(vport
, cmdiocb
);
5789 for (i
= 0; i
< payload_len
/sizeof(uint32_t); i
++)
5790 fc_host_post_event(shost
, fc_get_event_number(),
5791 FCH_EVT_RSCN
, lp
[i
]);
5793 /* If we are about to begin discovery, just ACC the RSCN.
5794 * Discovery processing will satisfy it.
5796 if (vport
->port_state
<= LPFC_NS_QRY
) {
5797 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
5798 "RCV RSCN ignore: did:x%x/ste:x%x flg:x%x",
5799 ndlp
->nlp_DID
, vport
->port_state
, ndlp
->nlp_flag
);
5801 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
, ndlp
, NULL
);
5805 /* If this RSCN just contains NPortIDs for other vports on this HBA,
5806 * just ACC and ignore it.
5808 if ((phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
5809 !(vport
->cfg_peer_port_login
)) {
5814 nportid
= ((be32_to_cpu(nportid
)) & Mask_DID
);
5815 i
-= sizeof(uint32_t);
5817 if (lpfc_find_vport_by_did(phba
, nportid
))
5820 if (rscn_id
== hba_id
) {
5821 /* ALL NPortIDs in RSCN are on HBA */
5822 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
5824 "Data: x%x x%x x%x x%x\n",
5825 vport
->fc_flag
, payload_len
,
5826 *lp
, vport
->fc_rscn_id_cnt
);
5827 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
5828 "RCV RSCN vport: did:x%x/ste:x%x flg:x%x",
5829 ndlp
->nlp_DID
, vport
->port_state
,
5832 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
,
5838 spin_lock_irq(shost
->host_lock
);
5839 if (vport
->fc_rscn_flush
) {
5840 /* Another thread is walking fc_rscn_id_list on this vport */
5841 vport
->fc_flag
|= FC_RSCN_DISCOVERY
;
5842 spin_unlock_irq(shost
->host_lock
);
5844 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
, ndlp
, NULL
);
5847 /* Indicate we are walking fc_rscn_id_list on this vport */
5848 vport
->fc_rscn_flush
= 1;
5849 spin_unlock_irq(shost
->host_lock
);
5850 /* Get the array count after successfully have the token */
5851 rscn_cnt
= vport
->fc_rscn_id_cnt
;
5852 /* If we are already processing an RSCN, save the received
5853 * RSCN payload buffer, cmdiocb->context2 to process later.
5855 if (vport
->fc_flag
& (FC_RSCN_MODE
| FC_NDISC_ACTIVE
)) {
5856 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
5857 "RCV RSCN defer: did:x%x/ste:x%x flg:x%x",
5858 ndlp
->nlp_DID
, vport
->port_state
, ndlp
->nlp_flag
);
5860 spin_lock_irq(shost
->host_lock
);
5861 vport
->fc_flag
|= FC_RSCN_DEFERRED
;
5862 if ((rscn_cnt
< FC_MAX_HOLD_RSCN
) &&
5863 !(vport
->fc_flag
& FC_RSCN_DISCOVERY
)) {
5864 vport
->fc_flag
|= FC_RSCN_MODE
;
5865 spin_unlock_irq(shost
->host_lock
);
5867 cmd
= vport
->fc_rscn_id_list
[rscn_cnt
-1]->virt
;
5868 length
= be32_to_cpu(*cmd
& ~ELS_CMD_MASK
);
5871 (payload_len
+ length
<= LPFC_BPL_SIZE
)) {
5872 *cmd
&= ELS_CMD_MASK
;
5873 *cmd
|= cpu_to_be32(payload_len
+ length
);
5874 memcpy(((uint8_t *)cmd
) + length
, lp
,
5877 vport
->fc_rscn_id_list
[rscn_cnt
] = pcmd
;
5878 vport
->fc_rscn_id_cnt
++;
5879 /* If we zero, cmdiocb->context2, the calling
5880 * routine will not try to free it.
5882 cmdiocb
->context2
= NULL
;
5885 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
5886 "0235 Deferred RSCN "
5887 "Data: x%x x%x x%x\n",
5888 vport
->fc_rscn_id_cnt
, vport
->fc_flag
,
5891 vport
->fc_flag
|= FC_RSCN_DISCOVERY
;
5892 spin_unlock_irq(shost
->host_lock
);
5893 /* ReDiscovery RSCN */
5894 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
5895 "0234 ReDiscovery RSCN "
5896 "Data: x%x x%x x%x\n",
5897 vport
->fc_rscn_id_cnt
, vport
->fc_flag
,
5900 /* Indicate we are done walking fc_rscn_id_list on this vport */
5901 vport
->fc_rscn_flush
= 0;
5903 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
, ndlp
, NULL
);
5904 /* send RECOVERY event for ALL nodes that match RSCN payload */
5905 lpfc_rscn_recovery_check(vport
);
5906 spin_lock_irq(shost
->host_lock
);
5907 vport
->fc_flag
&= ~FC_RSCN_DEFERRED
;
5908 spin_unlock_irq(shost
->host_lock
);
5911 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
5912 "RCV RSCN: did:x%x/ste:x%x flg:x%x",
5913 ndlp
->nlp_DID
, vport
->port_state
, ndlp
->nlp_flag
);
5915 spin_lock_irq(shost
->host_lock
);
5916 vport
->fc_flag
|= FC_RSCN_MODE
;
5917 spin_unlock_irq(shost
->host_lock
);
5918 vport
->fc_rscn_id_list
[vport
->fc_rscn_id_cnt
++] = pcmd
;
5919 /* Indicate we are done walking fc_rscn_id_list on this vport */
5920 vport
->fc_rscn_flush
= 0;
5922 * If we zero, cmdiocb->context2, the calling routine will
5923 * not try to free it.
5925 cmdiocb
->context2
= NULL
;
5926 lpfc_set_disctmo(vport
);
5928 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
, ndlp
, NULL
);
5929 /* send RECOVERY event for ALL nodes that match RSCN payload */
5930 lpfc_rscn_recovery_check(vport
);
5931 return lpfc_els_handle_rscn(vport
);
5935 * lpfc_els_handle_rscn - Handle rscn for a vport
5936 * @vport: pointer to a host virtual N_Port data structure.
5938 * This routine handles the Registration State Configuration Notification
5939 * (RSCN) for a @vport. If login to NameServer does not exist, a new ndlp shall
5940 * be created and a Port Login (PLOGI) to the NameServer is issued. Otherwise,
5941 * if the ndlp to NameServer exists, a Common Transport (CT) command to the
5942 * NameServer shall be issued. If CT command to the NameServer fails to be
5943 * issued, the lpfc_els_flush_rscn() routine shall be invoked to clean up any
5944 * RSCN activities with the @vport.
5947 * 0 - Cleaned up rscn on the @vport
5948 * 1 - Wait for plogi to name server before proceed
5951 lpfc_els_handle_rscn(struct lpfc_vport
*vport
)
5953 struct lpfc_nodelist
*ndlp
;
5954 struct lpfc_hba
*phba
= vport
->phba
;
5956 /* Ignore RSCN if the port is being torn down. */
5957 if (vport
->load_flag
& FC_UNLOADING
) {
5958 lpfc_els_flush_rscn(vport
);
5962 /* Start timer for RSCN processing */
5963 lpfc_set_disctmo(vport
);
5965 /* RSCN processed */
5966 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
5967 "0215 RSCN processed Data: x%x x%x x%x x%x\n",
5968 vport
->fc_flag
, 0, vport
->fc_rscn_id_cnt
,
5971 /* To process RSCN, first compare RSCN data with NameServer */
5972 vport
->fc_ns_retry
= 0;
5973 vport
->num_disc_nodes
= 0;
5975 ndlp
= lpfc_findnode_did(vport
, NameServer_DID
);
5976 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
)
5977 && ndlp
->nlp_state
== NLP_STE_UNMAPPED_NODE
) {
5978 /* Good ndlp, issue CT Request to NameServer */
5979 if (lpfc_ns_cmd(vport
, SLI_CTNS_GID_FT
, 0, 0) == 0)
5980 /* Wait for NameServer query cmpl before we can
5984 /* If login to NameServer does not exist, issue one */
5985 /* Good status, issue PLOGI to NameServer */
5986 ndlp
= lpfc_findnode_did(vport
, NameServer_DID
);
5987 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
))
5988 /* Wait for NameServer login cmpl before we can
5993 ndlp
= lpfc_enable_node(vport
, ndlp
,
5994 NLP_STE_PLOGI_ISSUE
);
5996 lpfc_els_flush_rscn(vport
);
5999 ndlp
->nlp_prev_state
= NLP_STE_UNUSED_NODE
;
6001 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
6003 lpfc_els_flush_rscn(vport
);
6006 lpfc_nlp_init(vport
, ndlp
, NameServer_DID
);
6007 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
6008 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_PLOGI_ISSUE
);
6010 ndlp
->nlp_type
|= NLP_FABRIC
;
6011 lpfc_issue_els_plogi(vport
, NameServer_DID
, 0);
6012 /* Wait for NameServer login cmpl before we can
6018 lpfc_els_flush_rscn(vport
);
6023 * lpfc_els_rcv_flogi - Process an unsolicited flogi iocb
6024 * @vport: pointer to a host virtual N_Port data structure.
6025 * @cmdiocb: pointer to lpfc command iocb data structure.
6026 * @ndlp: pointer to a node-list data structure.
6028 * This routine processes Fabric Login (FLOGI) IOCB received as an ELS
6029 * unsolicited event. An unsolicited FLOGI can be received in a point-to-
6030 * point topology. As an unsolicited FLOGI should not be received in a loop
6031 * mode, any unsolicited FLOGI received in loop mode shall be ignored. The
6032 * lpfc_check_sparm() routine is invoked to check the parameters in the
6033 * unsolicited FLOGI. If parameters validation failed, the routine
6034 * lpfc_els_rsp_reject() shall be called with reject reason code set to
6035 * LSEXP_SPARM_OPTIONS to reject the FLOGI. Otherwise, the Port WWN in the
6036 * FLOGI shall be compared with the Port WWN of the @vport to determine who
6037 * will initiate PLOGI. The higher lexicographical value party shall has
6038 * higher priority (as the winning port) and will initiate PLOGI and
6039 * communicate Port_IDs (Addresses) for both nodes in PLOGI. The result
6040 * of this will be marked in the @vport fc_flag field with FC_PT2PT_PLOGI
6041 * and then the lpfc_els_rsp_acc() routine is invoked to accept the FLOGI.
6044 * 0 - Successfully processed the unsolicited flogi
6045 * 1 - Failed to process the unsolicited flogi
6048 lpfc_els_rcv_flogi(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
6049 struct lpfc_nodelist
*ndlp
)
6051 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
6052 struct lpfc_hba
*phba
= vport
->phba
;
6053 struct lpfc_dmabuf
*pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
6054 uint32_t *lp
= (uint32_t *) pcmd
->virt
;
6055 IOCB_t
*icmd
= &cmdiocb
->iocb
;
6056 struct serv_parm
*sp
;
6060 uint32_t fc_flag
= 0;
6061 uint32_t port_state
= 0;
6064 sp
= (struct serv_parm
*) lp
;
6066 /* FLOGI received */
6068 lpfc_set_disctmo(vport
);
6070 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
6071 /* We should never receive a FLOGI in loop mode, ignore it */
6072 did
= icmd
->un
.elsreq64
.remoteID
;
6074 /* An FLOGI ELS command <elsCmd> was received from DID <did> in
6076 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
6077 "0113 An FLOGI ELS command x%x was "
6078 "received from DID x%x in Loop Mode\n",
6083 (void) lpfc_check_sparm(vport
, ndlp
, sp
, CLASS3
, 1);
6087 * If our portname is greater than the remote portname,
6088 * then we initiate Nport login.
6091 rc
= memcmp(&vport
->fc_portname
, &sp
->portName
,
6092 sizeof(struct lpfc_name
));
6095 if (phba
->sli_rev
< LPFC_SLI_REV4
) {
6096 mbox
= mempool_alloc(phba
->mbox_mem_pool
,
6100 lpfc_linkdown(phba
);
6101 lpfc_init_link(phba
, mbox
,
6103 phba
->cfg_link_speed
);
6104 mbox
->u
.mb
.un
.varInitLnk
.lipsr_AL_PA
= 0;
6105 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
6106 mbox
->vport
= vport
;
6107 rc
= lpfc_sli_issue_mbox(phba
, mbox
,
6109 lpfc_set_loopback_flag(phba
);
6110 if (rc
== MBX_NOT_FINISHED
)
6111 mempool_free(mbox
, phba
->mbox_mem_pool
);
6115 /* abort the flogi coming back to ourselves
6116 * due to external loopback on the port.
6118 lpfc_els_abort_flogi(phba
);
6121 } else if (rc
> 0) { /* greater than */
6122 spin_lock_irq(shost
->host_lock
);
6123 vport
->fc_flag
|= FC_PT2PT_PLOGI
;
6124 spin_unlock_irq(shost
->host_lock
);
6126 /* If we have the high WWPN we can assign our own
6127 * myDID; otherwise, we have to WAIT for a PLOGI
6128 * from the remote NPort to find out what it
6131 vport
->fc_myDID
= PT2PT_LocalID
;
6133 vport
->fc_myDID
= PT2PT_RemoteID
;
6137 * The vport state should go to LPFC_FLOGI only
6138 * AFTER we issue a FLOGI, not receive one.
6140 spin_lock_irq(shost
->host_lock
);
6141 fc_flag
= vport
->fc_flag
;
6142 port_state
= vport
->port_state
;
6143 vport
->fc_flag
|= FC_PT2PT
;
6144 vport
->fc_flag
&= ~(FC_FABRIC
| FC_PUBLIC_LOOP
);
6145 spin_unlock_irq(shost
->host_lock
);
6146 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
6147 "3311 Rcv Flogi PS x%x new PS x%x "
6148 "fc_flag x%x new fc_flag x%x\n",
6149 port_state
, vport
->port_state
,
6150 fc_flag
, vport
->fc_flag
);
6153 * We temporarily set fc_myDID to make it look like we are
6154 * a Fabric. This is done just so we end up with the right
6155 * did / sid on the FLOGI ACC rsp.
6157 did
= vport
->fc_myDID
;
6158 vport
->fc_myDID
= Fabric_DID
;
6160 memcpy(&phba
->fc_fabparam
, sp
, sizeof(struct serv_parm
));
6163 lpfc_els_rsp_acc(vport
, ELS_CMD_FLOGI
, cmdiocb
, ndlp
, NULL
);
6165 /* Now lets put fc_myDID back to what its supposed to be */
6166 vport
->fc_myDID
= did
;
6172 * lpfc_els_rcv_rnid - Process an unsolicited rnid iocb
6173 * @vport: pointer to a host virtual N_Port data structure.
6174 * @cmdiocb: pointer to lpfc command iocb data structure.
6175 * @ndlp: pointer to a node-list data structure.
6177 * This routine processes Request Node Identification Data (RNID) IOCB
6178 * received as an ELS unsolicited event. Only when the RNID specified format
6179 * 0x0 or 0xDF (Topology Discovery Specific Node Identification Data)
6180 * present, this routine will invoke the lpfc_els_rsp_rnid_acc() routine to
6181 * Accept (ACC) the RNID ELS command. All the other RNID formats are
6182 * rejected by invoking the lpfc_els_rsp_reject() routine.
6185 * 0 - Successfully processed rnid iocb (currently always return 0)
6188 lpfc_els_rcv_rnid(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
6189 struct lpfc_nodelist
*ndlp
)
6191 struct lpfc_dmabuf
*pcmd
;
6197 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
6198 lp
= (uint32_t *) pcmd
->virt
;
6205 switch (rn
->Format
) {
6207 case RNID_TOPOLOGY_DISC
:
6209 lpfc_els_rsp_rnid_acc(vport
, rn
->Format
, cmdiocb
, ndlp
);
6212 /* Reject this request because format not supported */
6213 stat
.un
.b
.lsRjtRsvd0
= 0;
6214 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
6215 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_CANT_GIVE_DATA
;
6216 stat
.un
.b
.vendorUnique
= 0;
6217 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
,
6224 * lpfc_els_rcv_echo - Process an unsolicited echo iocb
6225 * @vport: pointer to a host virtual N_Port data structure.
6226 * @cmdiocb: pointer to lpfc command iocb data structure.
6227 * @ndlp: pointer to a node-list data structure.
6230 * 0 - Successfully processed echo iocb (currently always return 0)
6233 lpfc_els_rcv_echo(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
6234 struct lpfc_nodelist
*ndlp
)
6238 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) cmdiocb
->context2
)->virt
);
6240 /* skip over first word of echo command to find echo data */
6241 pcmd
+= sizeof(uint32_t);
6243 lpfc_els_rsp_echo_acc(vport
, pcmd
, cmdiocb
, ndlp
);
6248 * lpfc_els_rcv_lirr - Process an unsolicited lirr iocb
6249 * @vport: pointer to a host virtual N_Port data structure.
6250 * @cmdiocb: pointer to lpfc command iocb data structure.
6251 * @ndlp: pointer to a node-list data structure.
6253 * This routine processes a Link Incident Report Registration(LIRR) IOCB
6254 * received as an ELS unsolicited event. Currently, this function just invokes
6255 * the lpfc_els_rsp_reject() routine to reject the LIRR IOCB unconditionally.
6258 * 0 - Successfully processed lirr iocb (currently always return 0)
6261 lpfc_els_rcv_lirr(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
6262 struct lpfc_nodelist
*ndlp
)
6266 /* For now, unconditionally reject this command */
6267 stat
.un
.b
.lsRjtRsvd0
= 0;
6268 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
6269 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_CANT_GIVE_DATA
;
6270 stat
.un
.b
.vendorUnique
= 0;
6271 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
, NULL
);
6276 * lpfc_els_rcv_rrq - Process an unsolicited rrq iocb
6277 * @vport: pointer to a host virtual N_Port data structure.
6278 * @cmdiocb: pointer to lpfc command iocb data structure.
6279 * @ndlp: pointer to a node-list data structure.
6281 * This routine processes a Reinstate Recovery Qualifier (RRQ) IOCB
6282 * received as an ELS unsolicited event. A request to RRQ shall only
6283 * be accepted if the Originator Nx_Port N_Port_ID or the Responder
6284 * Nx_Port N_Port_ID of the target Exchange is the same as the
6285 * N_Port_ID of the Nx_Port that makes the request. If the RRQ is
6286 * not accepted, an LS_RJT with reason code "Unable to perform
6287 * command request" and reason code explanation "Invalid Originator
6288 * S_ID" shall be returned. For now, we just unconditionally accept
6289 * RRQ from the target.
6292 lpfc_els_rcv_rrq(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
6293 struct lpfc_nodelist
*ndlp
)
6295 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
, ndlp
, NULL
);
6296 if (vport
->phba
->sli_rev
== LPFC_SLI_REV4
)
6297 lpfc_els_clear_rrq(vport
, cmdiocb
, ndlp
);
6301 * lpfc_els_rsp_rls_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd
6302 * @phba: pointer to lpfc hba data structure.
6303 * @pmb: pointer to the driver internal queue element for mailbox command.
6305 * This routine is the completion callback function for the MBX_READ_LNK_STAT
6306 * mailbox command. This callback function is to actually send the Accept
6307 * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It
6308 * collects the link statistics from the completion of the MBX_READ_LNK_STAT
6309 * mailbox command, constructs the RPS response with the link statistics
6310 * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC
6311 * response to the RPS.
6313 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
6314 * will be incremented by 1 for holding the ndlp and the reference to ndlp
6315 * will be stored into the context1 field of the IOCB for the completion
6316 * callback function to the RPS Accept Response ELS IOCB command.
6320 lpfc_els_rsp_rls_acc(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
6324 struct RLS_RSP
*rls_rsp
;
6326 struct lpfc_iocbq
*elsiocb
;
6327 struct lpfc_nodelist
*ndlp
;
6334 ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
6335 rxid
= (uint16_t) ((unsigned long)(pmb
->context1
) & 0xffff);
6336 oxid
= (uint16_t) (((unsigned long)(pmb
->context1
) >> 16) & 0xffff);
6337 pmb
->context1
= NULL
;
6338 pmb
->context2
= NULL
;
6340 if (mb
->mbxStatus
) {
6341 mempool_free(pmb
, phba
->mbox_mem_pool
);
6345 cmdsize
= sizeof(struct RLS_RSP
) + sizeof(uint32_t);
6346 elsiocb
= lpfc_prep_els_iocb(phba
->pport
, 0, cmdsize
,
6347 lpfc_max_els_tries
, ndlp
,
6348 ndlp
->nlp_DID
, ELS_CMD_ACC
);
6350 /* Decrement the ndlp reference count from previous mbox command */
6354 mempool_free(pmb
, phba
->mbox_mem_pool
);
6358 icmd
= &elsiocb
->iocb
;
6359 icmd
->ulpContext
= rxid
;
6360 icmd
->unsli3
.rcvsli3
.ox_id
= oxid
;
6362 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
6363 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
6364 pcmd
+= sizeof(uint32_t); /* Skip past command */
6365 rls_rsp
= (struct RLS_RSP
*)pcmd
;
6367 rls_rsp
->linkFailureCnt
= cpu_to_be32(mb
->un
.varRdLnk
.linkFailureCnt
);
6368 rls_rsp
->lossSyncCnt
= cpu_to_be32(mb
->un
.varRdLnk
.lossSyncCnt
);
6369 rls_rsp
->lossSignalCnt
= cpu_to_be32(mb
->un
.varRdLnk
.lossSignalCnt
);
6370 rls_rsp
->primSeqErrCnt
= cpu_to_be32(mb
->un
.varRdLnk
.primSeqErrCnt
);
6371 rls_rsp
->invalidXmitWord
= cpu_to_be32(mb
->un
.varRdLnk
.invalidXmitWord
);
6372 rls_rsp
->crcCnt
= cpu_to_be32(mb
->un
.varRdLnk
.crcCnt
);
6373 mempool_free(pmb
, phba
->mbox_mem_pool
);
6374 /* Xmit ELS RLS ACC response tag <ulpIoTag> */
6375 lpfc_printf_vlog(ndlp
->vport
, KERN_INFO
, LOG_ELS
,
6376 "2874 Xmit ELS RLS ACC response tag x%x xri x%x, "
6377 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
6378 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
6379 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
6381 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
6382 phba
->fc_stat
.elsXmitACC
++;
6383 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) == IOCB_ERROR
)
6384 lpfc_els_free_iocb(phba
, elsiocb
);
6388 * lpfc_els_rsp_rps_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd
6389 * @phba: pointer to lpfc hba data structure.
6390 * @pmb: pointer to the driver internal queue element for mailbox command.
6392 * This routine is the completion callback function for the MBX_READ_LNK_STAT
6393 * mailbox command. This callback function is to actually send the Accept
6394 * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It
6395 * collects the link statistics from the completion of the MBX_READ_LNK_STAT
6396 * mailbox command, constructs the RPS response with the link statistics
6397 * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC
6398 * response to the RPS.
6400 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
6401 * will be incremented by 1 for holding the ndlp and the reference to ndlp
6402 * will be stored into the context1 field of the IOCB for the completion
6403 * callback function to the RPS Accept Response ELS IOCB command.
6407 lpfc_els_rsp_rps_acc(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
6413 struct lpfc_iocbq
*elsiocb
;
6414 struct lpfc_nodelist
*ndlp
;
6422 ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
6423 rxid
= (uint16_t) ((unsigned long)(pmb
->context1
) & 0xffff);
6424 oxid
= (uint16_t) (((unsigned long)(pmb
->context1
) >> 16) & 0xffff);
6425 pmb
->context1
= NULL
;
6426 pmb
->context2
= NULL
;
6428 if (mb
->mbxStatus
) {
6429 mempool_free(pmb
, phba
->mbox_mem_pool
);
6433 cmdsize
= sizeof(RPS_RSP
) + sizeof(uint32_t);
6434 mempool_free(pmb
, phba
->mbox_mem_pool
);
6435 elsiocb
= lpfc_prep_els_iocb(phba
->pport
, 0, cmdsize
,
6436 lpfc_max_els_tries
, ndlp
,
6437 ndlp
->nlp_DID
, ELS_CMD_ACC
);
6439 /* Decrement the ndlp reference count from previous mbox command */
6445 icmd
= &elsiocb
->iocb
;
6446 icmd
->ulpContext
= rxid
;
6447 icmd
->unsli3
.rcvsli3
.ox_id
= oxid
;
6449 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
6450 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
6451 pcmd
+= sizeof(uint32_t); /* Skip past command */
6452 rps_rsp
= (RPS_RSP
*)pcmd
;
6454 if (phba
->fc_topology
!= LPFC_TOPOLOGY_LOOP
)
6458 if (phba
->pport
->fc_flag
& FC_FABRIC
)
6462 rps_rsp
->portStatus
= cpu_to_be16(status
);
6463 rps_rsp
->linkFailureCnt
= cpu_to_be32(mb
->un
.varRdLnk
.linkFailureCnt
);
6464 rps_rsp
->lossSyncCnt
= cpu_to_be32(mb
->un
.varRdLnk
.lossSyncCnt
);
6465 rps_rsp
->lossSignalCnt
= cpu_to_be32(mb
->un
.varRdLnk
.lossSignalCnt
);
6466 rps_rsp
->primSeqErrCnt
= cpu_to_be32(mb
->un
.varRdLnk
.primSeqErrCnt
);
6467 rps_rsp
->invalidXmitWord
= cpu_to_be32(mb
->un
.varRdLnk
.invalidXmitWord
);
6468 rps_rsp
->crcCnt
= cpu_to_be32(mb
->un
.varRdLnk
.crcCnt
);
6469 /* Xmit ELS RPS ACC response tag <ulpIoTag> */
6470 lpfc_printf_vlog(ndlp
->vport
, KERN_INFO
, LOG_ELS
,
6471 "0118 Xmit ELS RPS ACC response tag x%x xri x%x, "
6472 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
6473 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
6474 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
6476 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
6477 phba
->fc_stat
.elsXmitACC
++;
6478 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) == IOCB_ERROR
)
6479 lpfc_els_free_iocb(phba
, elsiocb
);
6484 * lpfc_els_rcv_rls - Process an unsolicited rls iocb
6485 * @vport: pointer to a host virtual N_Port data structure.
6486 * @cmdiocb: pointer to lpfc command iocb data structure.
6487 * @ndlp: pointer to a node-list data structure.
6489 * This routine processes Read Port Status (RPL) IOCB received as an
6490 * ELS unsolicited event. It first checks the remote port state. If the
6491 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
6492 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject
6493 * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command
6494 * for reading the HBA link statistics. It is for the callback function,
6495 * lpfc_els_rsp_rls_acc(), set to the MBX_READ_LNK_STAT mailbox command
6496 * to actually sending out RPL Accept (ACC) response.
6499 * 0 - Successfully processed rls iocb (currently always return 0)
6502 lpfc_els_rcv_rls(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
6503 struct lpfc_nodelist
*ndlp
)
6505 struct lpfc_hba
*phba
= vport
->phba
;
6509 if ((ndlp
->nlp_state
!= NLP_STE_UNMAPPED_NODE
) &&
6510 (ndlp
->nlp_state
!= NLP_STE_MAPPED_NODE
))
6511 /* reject the unsolicited RPS request and done with it */
6514 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_ATOMIC
);
6516 lpfc_read_lnk_stat(phba
, mbox
);
6517 mbox
->context1
= (void *)((unsigned long)
6518 ((cmdiocb
->iocb
.unsli3
.rcvsli3
.ox_id
<< 16) |
6519 cmdiocb
->iocb
.ulpContext
)); /* rx_id */
6520 mbox
->context2
= lpfc_nlp_get(ndlp
);
6521 mbox
->vport
= vport
;
6522 mbox
->mbox_cmpl
= lpfc_els_rsp_rls_acc
;
6523 if (lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
)
6524 != MBX_NOT_FINISHED
)
6525 /* Mbox completion will send ELS Response */
6527 /* Decrement reference count used for the failed mbox
6531 mempool_free(mbox
, phba
->mbox_mem_pool
);
6534 /* issue rejection response */
6535 stat
.un
.b
.lsRjtRsvd0
= 0;
6536 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
6537 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_CANT_GIVE_DATA
;
6538 stat
.un
.b
.vendorUnique
= 0;
6539 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
, NULL
);
6544 * lpfc_els_rcv_rtv - Process an unsolicited rtv iocb
6545 * @vport: pointer to a host virtual N_Port data structure.
6546 * @cmdiocb: pointer to lpfc command iocb data structure.
6547 * @ndlp: pointer to a node-list data structure.
6549 * This routine processes Read Timout Value (RTV) IOCB received as an
6550 * ELS unsolicited event. It first checks the remote port state. If the
6551 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
6552 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject
6553 * response. Otherwise, it sends the Accept(ACC) response to a Read Timeout
6554 * Value (RTV) unsolicited IOCB event.
6556 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
6557 * will be incremented by 1 for holding the ndlp and the reference to ndlp
6558 * will be stored into the context1 field of the IOCB for the completion
6559 * callback function to the RPS Accept Response ELS IOCB command.
6562 * 0 - Successfully processed rtv iocb (currently always return 0)
6565 lpfc_els_rcv_rtv(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
6566 struct lpfc_nodelist
*ndlp
)
6568 struct lpfc_hba
*phba
= vport
->phba
;
6570 struct RTV_RSP
*rtv_rsp
;
6572 struct lpfc_iocbq
*elsiocb
;
6576 if ((ndlp
->nlp_state
!= NLP_STE_UNMAPPED_NODE
) &&
6577 (ndlp
->nlp_state
!= NLP_STE_MAPPED_NODE
))
6578 /* reject the unsolicited RPS request and done with it */
6581 cmdsize
= sizeof(struct RTV_RSP
) + sizeof(uint32_t);
6582 elsiocb
= lpfc_prep_els_iocb(phba
->pport
, 0, cmdsize
,
6583 lpfc_max_els_tries
, ndlp
,
6584 ndlp
->nlp_DID
, ELS_CMD_ACC
);
6589 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
6590 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
6591 pcmd
+= sizeof(uint32_t); /* Skip past command */
6593 /* use the command's xri in the response */
6594 elsiocb
->iocb
.ulpContext
= cmdiocb
->iocb
.ulpContext
; /* Xri / rx_id */
6595 elsiocb
->iocb
.unsli3
.rcvsli3
.ox_id
= cmdiocb
->iocb
.unsli3
.rcvsli3
.ox_id
;
6597 rtv_rsp
= (struct RTV_RSP
*)pcmd
;
6599 /* populate RTV payload */
6600 rtv_rsp
->ratov
= cpu_to_be32(phba
->fc_ratov
* 1000); /* report msecs */
6601 rtv_rsp
->edtov
= cpu_to_be32(phba
->fc_edtov
);
6602 bf_set(qtov_edtovres
, rtv_rsp
, phba
->fc_edtovResol
? 1 : 0);
6603 bf_set(qtov_rttov
, rtv_rsp
, 0); /* Field is for FC ONLY */
6604 rtv_rsp
->qtov
= cpu_to_be32(rtv_rsp
->qtov
);
6606 /* Xmit ELS RLS ACC response tag <ulpIoTag> */
6607 lpfc_printf_vlog(ndlp
->vport
, KERN_INFO
, LOG_ELS
,
6608 "2875 Xmit ELS RTV ACC response tag x%x xri x%x, "
6609 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x, "
6610 "Data: x%x x%x x%x\n",
6611 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
6612 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
6614 rtv_rsp
->ratov
, rtv_rsp
->edtov
, rtv_rsp
->qtov
);
6615 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
6616 phba
->fc_stat
.elsXmitACC
++;
6617 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) == IOCB_ERROR
)
6618 lpfc_els_free_iocb(phba
, elsiocb
);
6622 /* issue rejection response */
6623 stat
.un
.b
.lsRjtRsvd0
= 0;
6624 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
6625 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_CANT_GIVE_DATA
;
6626 stat
.un
.b
.vendorUnique
= 0;
6627 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
, NULL
);
6631 /* lpfc_els_rcv_rps - Process an unsolicited rps iocb
6632 * @vport: pointer to a host virtual N_Port data structure.
6633 * @cmdiocb: pointer to lpfc command iocb data structure.
6634 * @ndlp: pointer to a node-list data structure.
6636 * This routine processes Read Port Status (RPS) IOCB received as an
6637 * ELS unsolicited event. It first checks the remote port state. If the
6638 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
6639 * state, it invokes the lpfc_els_rsp_reject() routine to send the reject
6640 * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command
6641 * for reading the HBA link statistics. It is for the callback function,
6642 * lpfc_els_rsp_rps_acc(), set to the MBX_READ_LNK_STAT mailbox command
6643 * to actually sending out RPS Accept (ACC) response.
6646 * 0 - Successfully processed rps iocb (currently always return 0)
6649 lpfc_els_rcv_rps(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
6650 struct lpfc_nodelist
*ndlp
)
6652 struct lpfc_hba
*phba
= vport
->phba
;
6656 struct lpfc_dmabuf
*pcmd
;
6660 if ((ndlp
->nlp_state
!= NLP_STE_UNMAPPED_NODE
) &&
6661 (ndlp
->nlp_state
!= NLP_STE_MAPPED_NODE
))
6662 /* reject the unsolicited RPS request and done with it */
6665 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
6666 lp
= (uint32_t *) pcmd
->virt
;
6667 flag
= (be32_to_cpu(*lp
++) & 0xf);
6671 ((flag
== 1) && (be32_to_cpu(rps
->un
.portNum
) == 0)) ||
6672 ((flag
== 2) && (memcmp(&rps
->un
.portName
, &vport
->fc_portname
,
6673 sizeof(struct lpfc_name
)) == 0))) {
6675 printk("Fix me....\n");
6677 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_ATOMIC
);
6679 lpfc_read_lnk_stat(phba
, mbox
);
6680 mbox
->context1
= (void *)((unsigned long)
6681 ((cmdiocb
->iocb
.unsli3
.rcvsli3
.ox_id
<< 16) |
6682 cmdiocb
->iocb
.ulpContext
)); /* rx_id */
6683 mbox
->context2
= lpfc_nlp_get(ndlp
);
6684 mbox
->vport
= vport
;
6685 mbox
->mbox_cmpl
= lpfc_els_rsp_rps_acc
;
6686 if (lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
)
6687 != MBX_NOT_FINISHED
)
6688 /* Mbox completion will send ELS Response */
6690 /* Decrement reference count used for the failed mbox
6694 mempool_free(mbox
, phba
->mbox_mem_pool
);
6699 /* issue rejection response */
6700 stat
.un
.b
.lsRjtRsvd0
= 0;
6701 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
6702 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_CANT_GIVE_DATA
;
6703 stat
.un
.b
.vendorUnique
= 0;
6704 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
, NULL
);
6708 /* lpfc_issue_els_rrq - Process an unsolicited rps iocb
6709 * @vport: pointer to a host virtual N_Port data structure.
6710 * @ndlp: pointer to a node-list data structure.
6711 * @did: DID of the target.
6712 * @rrq: Pointer to the rrq struct.
6714 * Build a ELS RRQ command and send it to the target. If the issue_iocb is
6715 * Successful the the completion handler will clear the RRQ.
6718 * 0 - Successfully sent rrq els iocb.
6719 * 1 - Failed to send rrq els iocb.
6722 lpfc_issue_els_rrq(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
6723 uint32_t did
, struct lpfc_node_rrq
*rrq
)
6725 struct lpfc_hba
*phba
= vport
->phba
;
6726 struct RRQ
*els_rrq
;
6727 struct lpfc_iocbq
*elsiocb
;
6733 if (ndlp
!= rrq
->ndlp
)
6735 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
))
6738 /* If ndlp is not NULL, we will bump the reference count on it */
6739 cmdsize
= (sizeof(uint32_t) + sizeof(struct RRQ
));
6740 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, 0, ndlp
, did
,
6745 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
6747 /* For RRQ request, remainder of payload is Exchange IDs */
6748 *((uint32_t *) (pcmd
)) = ELS_CMD_RRQ
;
6749 pcmd
+= sizeof(uint32_t);
6750 els_rrq
= (struct RRQ
*) pcmd
;
6752 bf_set(rrq_oxid
, els_rrq
, phba
->sli4_hba
.xri_ids
[rrq
->xritag
]);
6753 bf_set(rrq_rxid
, els_rrq
, rrq
->rxid
);
6754 bf_set(rrq_did
, els_rrq
, vport
->fc_myDID
);
6755 els_rrq
->rrq
= cpu_to_be32(els_rrq
->rrq
);
6756 els_rrq
->rrq_exchg
= cpu_to_be32(els_rrq
->rrq_exchg
);
6759 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
6760 "Issue RRQ: did:x%x",
6761 did
, rrq
->xritag
, rrq
->rxid
);
6762 elsiocb
->context_un
.rrq
= rrq
;
6763 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rrq
;
6764 ret
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
6766 if (ret
== IOCB_ERROR
) {
6767 lpfc_els_free_iocb(phba
, elsiocb
);
6774 * lpfc_send_rrq - Sends ELS RRQ if needed.
6775 * @phba: pointer to lpfc hba data structure.
6776 * @rrq: pointer to the active rrq.
6778 * This routine will call the lpfc_issue_els_rrq if the rrq is
6779 * still active for the xri. If this function returns a failure then
6780 * the caller needs to clean up the RRQ by calling lpfc_clr_active_rrq.
6782 * Returns 0 Success.
6786 lpfc_send_rrq(struct lpfc_hba
*phba
, struct lpfc_node_rrq
*rrq
)
6788 struct lpfc_nodelist
*ndlp
= lpfc_findnode_did(rrq
->vport
,
6790 if (lpfc_test_rrq_active(phba
, ndlp
, rrq
->xritag
))
6791 return lpfc_issue_els_rrq(rrq
->vport
, ndlp
,
6798 * lpfc_els_rsp_rpl_acc - Issue an accept rpl els command
6799 * @vport: pointer to a host virtual N_Port data structure.
6800 * @cmdsize: size of the ELS command.
6801 * @oldiocb: pointer to the original lpfc command iocb data structure.
6802 * @ndlp: pointer to a node-list data structure.
6804 * This routine issuees an Accept (ACC) Read Port List (RPL) ELS command.
6805 * It is to be called by the lpfc_els_rcv_rpl() routine to accept the RPL.
6807 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
6808 * will be incremented by 1 for holding the ndlp and the reference to ndlp
6809 * will be stored into the context1 field of the IOCB for the completion
6810 * callback function to the RPL Accept Response ELS command.
6813 * 0 - Successfully issued ACC RPL ELS command
6814 * 1 - Failed to issue ACC RPL ELS command
6817 lpfc_els_rsp_rpl_acc(struct lpfc_vport
*vport
, uint16_t cmdsize
,
6818 struct lpfc_iocbq
*oldiocb
, struct lpfc_nodelist
*ndlp
)
6820 struct lpfc_hba
*phba
= vport
->phba
;
6821 IOCB_t
*icmd
, *oldcmd
;
6823 struct lpfc_iocbq
*elsiocb
;
6826 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
, ndlp
,
6827 ndlp
->nlp_DID
, ELS_CMD_ACC
);
6832 icmd
= &elsiocb
->iocb
;
6833 oldcmd
= &oldiocb
->iocb
;
6834 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
6835 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
6837 pcmd
= (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
6838 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
6839 pcmd
+= sizeof(uint16_t);
6840 *((uint16_t *)(pcmd
)) = be16_to_cpu(cmdsize
);
6841 pcmd
+= sizeof(uint16_t);
6843 /* Setup the RPL ACC payload */
6844 rpl_rsp
.listLen
= be32_to_cpu(1);
6846 rpl_rsp
.port_num_blk
.portNum
= 0;
6847 rpl_rsp
.port_num_blk
.portID
= be32_to_cpu(vport
->fc_myDID
);
6848 memcpy(&rpl_rsp
.port_num_blk
.portName
, &vport
->fc_portname
,
6849 sizeof(struct lpfc_name
));
6850 memcpy(pcmd
, &rpl_rsp
, cmdsize
- sizeof(uint32_t));
6851 /* Xmit ELS RPL ACC response tag <ulpIoTag> */
6852 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
6853 "0120 Xmit ELS RPL ACC response tag x%x "
6854 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
6856 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
6857 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
6859 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
6860 phba
->fc_stat
.elsXmitACC
++;
6861 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) ==
6863 lpfc_els_free_iocb(phba
, elsiocb
);
6870 * lpfc_els_rcv_rpl - Process an unsolicited rpl iocb
6871 * @vport: pointer to a host virtual N_Port data structure.
6872 * @cmdiocb: pointer to lpfc command iocb data structure.
6873 * @ndlp: pointer to a node-list data structure.
6875 * This routine processes Read Port List (RPL) IOCB received as an ELS
6876 * unsolicited event. It first checks the remote port state. If the remote
6877 * port is not in NLP_STE_UNMAPPED_NODE and NLP_STE_MAPPED_NODE states, it
6878 * invokes the lpfc_els_rsp_reject() routine to send reject response.
6879 * Otherwise, this routine then invokes the lpfc_els_rsp_rpl_acc() routine
6880 * to accept the RPL.
6883 * 0 - Successfully processed rpl iocb (currently always return 0)
6886 lpfc_els_rcv_rpl(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
6887 struct lpfc_nodelist
*ndlp
)
6889 struct lpfc_dmabuf
*pcmd
;
6896 if ((ndlp
->nlp_state
!= NLP_STE_UNMAPPED_NODE
) &&
6897 (ndlp
->nlp_state
!= NLP_STE_MAPPED_NODE
)) {
6898 /* issue rejection response */
6899 stat
.un
.b
.lsRjtRsvd0
= 0;
6900 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
6901 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_CANT_GIVE_DATA
;
6902 stat
.un
.b
.vendorUnique
= 0;
6903 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
,
6905 /* rejected the unsolicited RPL request and done with it */
6909 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
6910 lp
= (uint32_t *) pcmd
->virt
;
6911 rpl
= (RPL
*) (lp
+ 1);
6912 maxsize
= be32_to_cpu(rpl
->maxsize
);
6914 /* We support only one port */
6915 if ((rpl
->index
== 0) &&
6917 ((maxsize
* sizeof(uint32_t)) >= sizeof(RPL_RSP
)))) {
6918 cmdsize
= sizeof(uint32_t) + sizeof(RPL_RSP
);
6920 cmdsize
= sizeof(uint32_t) + maxsize
* sizeof(uint32_t);
6922 lpfc_els_rsp_rpl_acc(vport
, cmdsize
, cmdiocb
, ndlp
);
6928 * lpfc_els_rcv_farp - Process an unsolicited farp request els command
6929 * @vport: pointer to a virtual N_Port data structure.
6930 * @cmdiocb: pointer to lpfc command iocb data structure.
6931 * @ndlp: pointer to a node-list data structure.
6933 * This routine processes Fibre Channel Address Resolution Protocol
6934 * (FARP) Request IOCB received as an ELS unsolicited event. Currently,
6935 * the lpfc driver only supports matching on WWPN or WWNN for FARP. As such,
6936 * FARP_MATCH_PORT flag and FARP_MATCH_NODE flag are checked against the
6937 * Match Flag in the FARP request IOCB: if FARP_MATCH_PORT flag is set, the
6938 * remote PortName is compared against the FC PortName stored in the @vport
6939 * data structure; if FARP_MATCH_NODE flag is set, the remote NodeName is
6940 * compared against the FC NodeName stored in the @vport data structure.
6941 * If any of these matches and the FARP_REQUEST_FARPR flag is set in the
6942 * FARP request IOCB Response Flag, the lpfc_issue_els_farpr() routine is
6943 * invoked to send out FARP Response to the remote node. Before sending the
6944 * FARP Response, however, the FARP_REQUEST_PLOGI flag is check in the FARP
6945 * request IOCB Response Flag and, if it is set, the lpfc_issue_els_plogi()
6946 * routine is invoked to log into the remote port first.
6949 * 0 - Either the FARP Match Mode not supported or successfully processed
6952 lpfc_els_rcv_farp(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
6953 struct lpfc_nodelist
*ndlp
)
6955 struct lpfc_dmabuf
*pcmd
;
6959 uint32_t cmd
, cnt
, did
;
6961 icmd
= &cmdiocb
->iocb
;
6962 did
= icmd
->un
.elsreq64
.remoteID
;
6963 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
6964 lp
= (uint32_t *) pcmd
->virt
;
6968 /* FARP-REQ received from DID <did> */
6969 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
6970 "0601 FARP-REQ received from DID x%x\n", did
);
6971 /* We will only support match on WWPN or WWNN */
6972 if (fp
->Mflags
& ~(FARP_MATCH_NODE
| FARP_MATCH_PORT
)) {
6977 /* If this FARP command is searching for my portname */
6978 if (fp
->Mflags
& FARP_MATCH_PORT
) {
6979 if (memcmp(&fp
->RportName
, &vport
->fc_portname
,
6980 sizeof(struct lpfc_name
)) == 0)
6984 /* If this FARP command is searching for my nodename */
6985 if (fp
->Mflags
& FARP_MATCH_NODE
) {
6986 if (memcmp(&fp
->RnodeName
, &vport
->fc_nodename
,
6987 sizeof(struct lpfc_name
)) == 0)
6992 if ((ndlp
->nlp_state
== NLP_STE_UNMAPPED_NODE
) ||
6993 (ndlp
->nlp_state
== NLP_STE_MAPPED_NODE
)) {
6994 /* Log back into the node before sending the FARP. */
6995 if (fp
->Rflags
& FARP_REQUEST_PLOGI
) {
6996 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
6997 lpfc_nlp_set_state(vport
, ndlp
,
6998 NLP_STE_PLOGI_ISSUE
);
6999 lpfc_issue_els_plogi(vport
, ndlp
->nlp_DID
, 0);
7002 /* Send a FARP response to that node */
7003 if (fp
->Rflags
& FARP_REQUEST_FARPR
)
7004 lpfc_issue_els_farpr(vport
, did
, 0);
7011 * lpfc_els_rcv_farpr - Process an unsolicited farp response iocb
7012 * @vport: pointer to a host virtual N_Port data structure.
7013 * @cmdiocb: pointer to lpfc command iocb data structure.
7014 * @ndlp: pointer to a node-list data structure.
7016 * This routine processes Fibre Channel Address Resolution Protocol
7017 * Response (FARPR) IOCB received as an ELS unsolicited event. It simply
7018 * invokes the lpfc_els_rsp_acc() routine to the remote node to accept
7019 * the FARP response request.
7022 * 0 - Successfully processed FARPR IOCB (currently always return 0)
7025 lpfc_els_rcv_farpr(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
7026 struct lpfc_nodelist
*ndlp
)
7028 struct lpfc_dmabuf
*pcmd
;
7033 icmd
= &cmdiocb
->iocb
;
7034 did
= icmd
->un
.elsreq64
.remoteID
;
7035 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
7036 lp
= (uint32_t *) pcmd
->virt
;
7039 /* FARP-RSP received from DID <did> */
7040 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
7041 "0600 FARP-RSP received from DID x%x\n", did
);
7042 /* ACCEPT the Farp resp request */
7043 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
, ndlp
, NULL
);
7049 * lpfc_els_rcv_fan - Process an unsolicited fan iocb command
7050 * @vport: pointer to a host virtual N_Port data structure.
7051 * @cmdiocb: pointer to lpfc command iocb data structure.
7052 * @fan_ndlp: pointer to a node-list data structure.
7054 * This routine processes a Fabric Address Notification (FAN) IOCB
7055 * command received as an ELS unsolicited event. The FAN ELS command will
7056 * only be processed on a physical port (i.e., the @vport represents the
7057 * physical port). The fabric NodeName and PortName from the FAN IOCB are
7058 * compared against those in the phba data structure. If any of those is
7059 * different, the lpfc_initial_flogi() routine is invoked to initialize
7060 * Fabric Login (FLOGI) to the fabric to start the discover over. Otherwise,
7061 * if both of those are identical, the lpfc_issue_fabric_reglogin() routine
7062 * is invoked to register login to the fabric.
7065 * 0 - Successfully processed fan iocb (currently always return 0).
7068 lpfc_els_rcv_fan(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
7069 struct lpfc_nodelist
*fan_ndlp
)
7071 struct lpfc_hba
*phba
= vport
->phba
;
7075 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
, "0265 FAN received\n");
7076 lp
= (uint32_t *)((struct lpfc_dmabuf
*)cmdiocb
->context2
)->virt
;
7078 /* FAN received; Fan does not have a reply sequence */
7079 if ((vport
== phba
->pport
) &&
7080 (vport
->port_state
== LPFC_LOCAL_CFG_LINK
)) {
7081 if ((memcmp(&phba
->fc_fabparam
.nodeName
, &fp
->FnodeName
,
7082 sizeof(struct lpfc_name
))) ||
7083 (memcmp(&phba
->fc_fabparam
.portName
, &fp
->FportName
,
7084 sizeof(struct lpfc_name
)))) {
7085 /* This port has switched fabrics. FLOGI is required */
7086 lpfc_issue_init_vfi(vport
);
7088 /* FAN verified - skip FLOGI */
7089 vport
->fc_myDID
= vport
->fc_prevDID
;
7090 if (phba
->sli_rev
< LPFC_SLI_REV4
)
7091 lpfc_issue_fabric_reglogin(vport
);
7093 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
7094 "3138 Need register VFI: (x%x/%x)\n",
7095 vport
->fc_prevDID
, vport
->fc_myDID
);
7096 lpfc_issue_reg_vfi(vport
);
7104 * lpfc_els_timeout - Handler funciton to the els timer
7105 * @ptr: holder for the timer function associated data.
7107 * This routine is invoked by the ELS timer after timeout. It posts the ELS
7108 * timer timeout event by setting the WORKER_ELS_TMO bit to the work port
7109 * event bitmap and then invokes the lpfc_worker_wake_up() routine to wake
7110 * up the worker thread. It is for the worker thread to invoke the routine
7111 * lpfc_els_timeout_handler() to work on the posted event WORKER_ELS_TMO.
7114 lpfc_els_timeout(unsigned long ptr
)
7116 struct lpfc_vport
*vport
= (struct lpfc_vport
*) ptr
;
7117 struct lpfc_hba
*phba
= vport
->phba
;
7118 uint32_t tmo_posted
;
7119 unsigned long iflag
;
7121 spin_lock_irqsave(&vport
->work_port_lock
, iflag
);
7122 tmo_posted
= vport
->work_port_events
& WORKER_ELS_TMO
;
7123 if ((!tmo_posted
) && (!(vport
->load_flag
& FC_UNLOADING
)))
7124 vport
->work_port_events
|= WORKER_ELS_TMO
;
7125 spin_unlock_irqrestore(&vport
->work_port_lock
, iflag
);
7127 if ((!tmo_posted
) && (!(vport
->load_flag
& FC_UNLOADING
)))
7128 lpfc_worker_wake_up(phba
);
7134 * lpfc_els_timeout_handler - Process an els timeout event
7135 * @vport: pointer to a virtual N_Port data structure.
7137 * This routine is the actual handler function that processes an ELS timeout
7138 * event. It walks the ELS ring to get and abort all the IOCBs (except the
7139 * ABORT/CLOSE/FARP/FARPR/FDISC), which are associated with the @vport by
7140 * invoking the lpfc_sli_issue_abort_iotag() routine.
7143 lpfc_els_timeout_handler(struct lpfc_vport
*vport
)
7145 struct lpfc_hba
*phba
= vport
->phba
;
7146 struct lpfc_sli_ring
*pring
;
7147 struct lpfc_iocbq
*tmp_iocb
, *piocb
;
7149 struct lpfc_dmabuf
*pcmd
;
7150 uint32_t els_command
= 0;
7152 uint32_t remote_ID
= 0xffffffff;
7153 LIST_HEAD(abort_list
);
7156 timeout
= (uint32_t)(phba
->fc_ratov
<< 1);
7158 pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
7159 if ((phba
->pport
->load_flag
& FC_UNLOADING
))
7161 spin_lock_irq(&phba
->hbalock
);
7162 if (phba
->sli_rev
== LPFC_SLI_REV4
)
7163 spin_lock(&pring
->ring_lock
);
7165 if ((phba
->pport
->load_flag
& FC_UNLOADING
)) {
7166 if (phba
->sli_rev
== LPFC_SLI_REV4
)
7167 spin_unlock(&pring
->ring_lock
);
7168 spin_unlock_irq(&phba
->hbalock
);
7172 list_for_each_entry_safe(piocb
, tmp_iocb
, &pring
->txcmplq
, list
) {
7175 if ((piocb
->iocb_flag
& LPFC_IO_LIBDFC
) != 0 ||
7176 piocb
->iocb
.ulpCommand
== CMD_ABORT_XRI_CN
||
7177 piocb
->iocb
.ulpCommand
== CMD_CLOSE_XRI_CN
)
7180 if (piocb
->vport
!= vport
)
7183 pcmd
= (struct lpfc_dmabuf
*) piocb
->context2
;
7185 els_command
= *(uint32_t *) (pcmd
->virt
);
7187 if (els_command
== ELS_CMD_FARP
||
7188 els_command
== ELS_CMD_FARPR
||
7189 els_command
== ELS_CMD_FDISC
)
7192 if (piocb
->drvrTimeout
> 0) {
7193 if (piocb
->drvrTimeout
>= timeout
)
7194 piocb
->drvrTimeout
-= timeout
;
7196 piocb
->drvrTimeout
= 0;
7200 remote_ID
= 0xffffffff;
7201 if (cmd
->ulpCommand
!= CMD_GEN_REQUEST64_CR
)
7202 remote_ID
= cmd
->un
.elsreq64
.remoteID
;
7204 struct lpfc_nodelist
*ndlp
;
7205 ndlp
= __lpfc_findnode_rpi(vport
, cmd
->ulpContext
);
7206 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
))
7207 remote_ID
= ndlp
->nlp_DID
;
7209 list_add_tail(&piocb
->dlist
, &abort_list
);
7211 if (phba
->sli_rev
== LPFC_SLI_REV4
)
7212 spin_unlock(&pring
->ring_lock
);
7213 spin_unlock_irq(&phba
->hbalock
);
7215 list_for_each_entry_safe(piocb
, tmp_iocb
, &abort_list
, dlist
) {
7217 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
7218 "0127 ELS timeout Data: x%x x%x x%x "
7219 "x%x\n", els_command
,
7220 remote_ID
, cmd
->ulpCommand
, cmd
->ulpIoTag
);
7221 spin_lock_irq(&phba
->hbalock
);
7222 list_del_init(&piocb
->dlist
);
7223 lpfc_sli_issue_abort_iotag(phba
, pring
, piocb
);
7224 spin_unlock_irq(&phba
->hbalock
);
7227 if (!list_empty(&phba
->sli
.ring
[LPFC_ELS_RING
].txcmplq
))
7228 if (!(phba
->pport
->load_flag
& FC_UNLOADING
))
7229 mod_timer(&vport
->els_tmofunc
,
7230 jiffies
+ msecs_to_jiffies(1000 * timeout
));
7234 * lpfc_els_flush_cmd - Clean up the outstanding els commands to a vport
7235 * @vport: pointer to a host virtual N_Port data structure.
7237 * This routine is used to clean up all the outstanding ELS commands on a
7238 * @vport. It first aborts the @vport by invoking lpfc_fabric_abort_vport()
7239 * routine. After that, it walks the ELS transmit queue to remove all the
7240 * IOCBs with the @vport other than the QUE_RING and ABORT/CLOSE IOCBs. For
7241 * the IOCBs with a non-NULL completion callback function, the callback
7242 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and
7243 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs with a NULL completion
7244 * callback function, the IOCB will simply be released. Finally, it walks
7245 * the ELS transmit completion queue to issue an abort IOCB to any transmit
7246 * completion queue IOCB that is associated with the @vport and is not
7247 * an IOCB from libdfc (i.e., the management plane IOCBs that are not
7248 * part of the discovery state machine) out to HBA by invoking the
7249 * lpfc_sli_issue_abort_iotag() routine. Note that this function issues the
7250 * abort IOCB to any transmit completion queueed IOCB, it does not guarantee
7251 * the IOCBs are aborted when this function returns.
7254 lpfc_els_flush_cmd(struct lpfc_vport
*vport
)
7256 LIST_HEAD(abort_list
);
7257 struct lpfc_hba
*phba
= vport
->phba
;
7258 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
7259 struct lpfc_iocbq
*tmp_iocb
, *piocb
;
7262 lpfc_fabric_abort_vport(vport
);
7264 * For SLI3, only the hbalock is required. But SLI4 needs to coordinate
7265 * with the ring insert operation. Because lpfc_sli_issue_abort_iotag
7266 * ultimately grabs the ring_lock, the driver must splice the list into
7267 * a working list and release the locks before calling the abort.
7269 spin_lock_irq(&phba
->hbalock
);
7270 if (phba
->sli_rev
== LPFC_SLI_REV4
)
7271 spin_lock(&pring
->ring_lock
);
7273 list_for_each_entry_safe(piocb
, tmp_iocb
, &pring
->txcmplq
, list
) {
7274 if (piocb
->iocb_flag
& LPFC_IO_LIBDFC
)
7277 if (piocb
->vport
!= vport
)
7279 list_add_tail(&piocb
->dlist
, &abort_list
);
7281 if (phba
->sli_rev
== LPFC_SLI_REV4
)
7282 spin_unlock(&pring
->ring_lock
);
7283 spin_unlock_irq(&phba
->hbalock
);
7284 /* Abort each iocb on the aborted list and remove the dlist links. */
7285 list_for_each_entry_safe(piocb
, tmp_iocb
, &abort_list
, dlist
) {
7286 spin_lock_irq(&phba
->hbalock
);
7287 list_del_init(&piocb
->dlist
);
7288 lpfc_sli_issue_abort_iotag(phba
, pring
, piocb
);
7289 spin_unlock_irq(&phba
->hbalock
);
7291 if (!list_empty(&abort_list
))
7292 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
7293 "3387 abort list for txq not empty\n");
7294 INIT_LIST_HEAD(&abort_list
);
7296 spin_lock_irq(&phba
->hbalock
);
7297 if (phba
->sli_rev
== LPFC_SLI_REV4
)
7298 spin_lock(&pring
->ring_lock
);
7300 list_for_each_entry_safe(piocb
, tmp_iocb
, &pring
->txq
, list
) {
7303 if (piocb
->iocb_flag
& LPFC_IO_LIBDFC
) {
7307 /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */
7308 if (cmd
->ulpCommand
== CMD_QUE_RING_BUF_CN
||
7309 cmd
->ulpCommand
== CMD_QUE_RING_BUF64_CN
||
7310 cmd
->ulpCommand
== CMD_CLOSE_XRI_CN
||
7311 cmd
->ulpCommand
== CMD_ABORT_XRI_CN
)
7314 if (piocb
->vport
!= vport
)
7317 list_del_init(&piocb
->list
);
7318 list_add_tail(&piocb
->list
, &abort_list
);
7320 if (phba
->sli_rev
== LPFC_SLI_REV4
)
7321 spin_unlock(&pring
->ring_lock
);
7322 spin_unlock_irq(&phba
->hbalock
);
7324 /* Cancell all the IOCBs from the completions list */
7325 lpfc_sli_cancel_iocbs(phba
, &abort_list
,
7326 IOSTAT_LOCAL_REJECT
, IOERR_SLI_ABORTED
);
7332 * lpfc_els_flush_all_cmd - Clean up all the outstanding els commands to a HBA
7333 * @phba: pointer to lpfc hba data structure.
7335 * This routine is used to clean up all the outstanding ELS commands on a
7336 * @phba. It first aborts the @phba by invoking the lpfc_fabric_abort_hba()
7337 * routine. After that, it walks the ELS transmit queue to remove all the
7338 * IOCBs to the @phba other than the QUE_RING and ABORT/CLOSE IOCBs. For
7339 * the IOCBs with the completion callback function associated, the callback
7340 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and
7341 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs without the completion
7342 * callback function associated, the IOCB will simply be released. Finally,
7343 * it walks the ELS transmit completion queue to issue an abort IOCB to any
7344 * transmit completion queue IOCB that is not an IOCB from libdfc (i.e., the
7345 * management plane IOCBs that are not part of the discovery state machine)
7346 * out to HBA by invoking the lpfc_sli_issue_abort_iotag() routine.
7349 lpfc_els_flush_all_cmd(struct lpfc_hba
*phba
)
7351 struct lpfc_vport
*vport
;
7352 list_for_each_entry(vport
, &phba
->port_list
, listentry
)
7353 lpfc_els_flush_cmd(vport
);
7359 * lpfc_send_els_failure_event - Posts an ELS command failure event
7360 * @phba: Pointer to hba context object.
7361 * @cmdiocbp: Pointer to command iocb which reported error.
7362 * @rspiocbp: Pointer to response iocb which reported error.
7364 * This function sends an event when there is an ELS command
7368 lpfc_send_els_failure_event(struct lpfc_hba
*phba
,
7369 struct lpfc_iocbq
*cmdiocbp
,
7370 struct lpfc_iocbq
*rspiocbp
)
7372 struct lpfc_vport
*vport
= cmdiocbp
->vport
;
7373 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
7374 struct lpfc_lsrjt_event lsrjt_event
;
7375 struct lpfc_fabric_event_header fabric_event
;
7377 struct lpfc_nodelist
*ndlp
;
7380 ndlp
= cmdiocbp
->context1
;
7381 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
))
7384 if (rspiocbp
->iocb
.ulpStatus
== IOSTAT_LS_RJT
) {
7385 lsrjt_event
.header
.event_type
= FC_REG_ELS_EVENT
;
7386 lsrjt_event
.header
.subcategory
= LPFC_EVENT_LSRJT_RCV
;
7387 memcpy(lsrjt_event
.header
.wwpn
, &ndlp
->nlp_portname
,
7388 sizeof(struct lpfc_name
));
7389 memcpy(lsrjt_event
.header
.wwnn
, &ndlp
->nlp_nodename
,
7390 sizeof(struct lpfc_name
));
7391 pcmd
= (uint32_t *) (((struct lpfc_dmabuf
*)
7392 cmdiocbp
->context2
)->virt
);
7393 lsrjt_event
.command
= (pcmd
!= NULL
) ? *pcmd
: 0;
7394 stat
.un
.lsRjtError
= be32_to_cpu(rspiocbp
->iocb
.un
.ulpWord
[4]);
7395 lsrjt_event
.reason_code
= stat
.un
.b
.lsRjtRsnCode
;
7396 lsrjt_event
.explanation
= stat
.un
.b
.lsRjtRsnCodeExp
;
7397 fc_host_post_vendor_event(shost
,
7398 fc_get_event_number(),
7399 sizeof(lsrjt_event
),
7400 (char *)&lsrjt_event
,
7404 if ((rspiocbp
->iocb
.ulpStatus
== IOSTAT_NPORT_BSY
) ||
7405 (rspiocbp
->iocb
.ulpStatus
== IOSTAT_FABRIC_BSY
)) {
7406 fabric_event
.event_type
= FC_REG_FABRIC_EVENT
;
7407 if (rspiocbp
->iocb
.ulpStatus
== IOSTAT_NPORT_BSY
)
7408 fabric_event
.subcategory
= LPFC_EVENT_PORT_BUSY
;
7410 fabric_event
.subcategory
= LPFC_EVENT_FABRIC_BUSY
;
7411 memcpy(fabric_event
.wwpn
, &ndlp
->nlp_portname
,
7412 sizeof(struct lpfc_name
));
7413 memcpy(fabric_event
.wwnn
, &ndlp
->nlp_nodename
,
7414 sizeof(struct lpfc_name
));
7415 fc_host_post_vendor_event(shost
,
7416 fc_get_event_number(),
7417 sizeof(fabric_event
),
7418 (char *)&fabric_event
,
7426 * lpfc_send_els_event - Posts unsolicited els event
7427 * @vport: Pointer to vport object.
7428 * @ndlp: Pointer FC node object.
7429 * @cmd: ELS command code.
7431 * This function posts an event when there is an incoming
7432 * unsolicited ELS command.
7435 lpfc_send_els_event(struct lpfc_vport
*vport
,
7436 struct lpfc_nodelist
*ndlp
,
7439 struct lpfc_els_event_header
*els_data
= NULL
;
7440 struct lpfc_logo_event
*logo_data
= NULL
;
7441 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
7443 if (*payload
== ELS_CMD_LOGO
) {
7444 logo_data
= kmalloc(sizeof(struct lpfc_logo_event
), GFP_KERNEL
);
7446 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
7447 "0148 Failed to allocate memory "
7448 "for LOGO event\n");
7451 els_data
= &logo_data
->header
;
7453 els_data
= kmalloc(sizeof(struct lpfc_els_event_header
),
7456 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
7457 "0149 Failed to allocate memory "
7462 els_data
->event_type
= FC_REG_ELS_EVENT
;
7465 els_data
->subcategory
= LPFC_EVENT_PLOGI_RCV
;
7468 els_data
->subcategory
= LPFC_EVENT_PRLO_RCV
;
7471 els_data
->subcategory
= LPFC_EVENT_ADISC_RCV
;
7474 els_data
->subcategory
= LPFC_EVENT_LOGO_RCV
;
7475 /* Copy the WWPN in the LOGO payload */
7476 memcpy(logo_data
->logo_wwpn
, &payload
[2],
7477 sizeof(struct lpfc_name
));
7483 memcpy(els_data
->wwpn
, &ndlp
->nlp_portname
, sizeof(struct lpfc_name
));
7484 memcpy(els_data
->wwnn
, &ndlp
->nlp_nodename
, sizeof(struct lpfc_name
));
7485 if (*payload
== ELS_CMD_LOGO
) {
7486 fc_host_post_vendor_event(shost
,
7487 fc_get_event_number(),
7488 sizeof(struct lpfc_logo_event
),
7493 fc_host_post_vendor_event(shost
,
7494 fc_get_event_number(),
7495 sizeof(struct lpfc_els_event_header
),
7506 * lpfc_els_unsol_buffer - Process an unsolicited event data buffer
7507 * @phba: pointer to lpfc hba data structure.
7508 * @pring: pointer to a SLI ring.
7509 * @vport: pointer to a host virtual N_Port data structure.
7510 * @elsiocb: pointer to lpfc els command iocb data structure.
7512 * This routine is used for processing the IOCB associated with a unsolicited
7513 * event. It first determines whether there is an existing ndlp that matches
7514 * the DID from the unsolicited IOCB. If not, it will create a new one with
7515 * the DID from the unsolicited IOCB. The ELS command from the unsolicited
7516 * IOCB is then used to invoke the proper routine and to set up proper state
7517 * of the discovery state machine.
7520 lpfc_els_unsol_buffer(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
7521 struct lpfc_vport
*vport
, struct lpfc_iocbq
*elsiocb
)
7523 struct Scsi_Host
*shost
;
7524 struct lpfc_nodelist
*ndlp
;
7527 uint32_t cmd
, did
, newnode
;
7528 uint8_t rjt_exp
, rjt_err
= 0;
7529 IOCB_t
*icmd
= &elsiocb
->iocb
;
7531 if (!vport
|| !(elsiocb
->context2
))
7535 payload
= ((struct lpfc_dmabuf
*)elsiocb
->context2
)->virt
;
7537 if ((phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
) == 0)
7538 lpfc_post_buffer(phba
, pring
, 1);
7540 did
= icmd
->un
.rcvels
.remoteID
;
7541 if (icmd
->ulpStatus
) {
7542 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7543 "RCV Unsol ELS: status:x%x/x%x did:x%x",
7544 icmd
->ulpStatus
, icmd
->un
.ulpWord
[4], did
);
7548 /* Check to see if link went down during discovery */
7549 if (lpfc_els_chk_latt(vport
))
7552 /* Ignore traffic received during vport shutdown. */
7553 if (vport
->load_flag
& FC_UNLOADING
)
7556 /* If NPort discovery is delayed drop incoming ELS */
7557 if ((vport
->fc_flag
& FC_DISC_DELAYED
) &&
7558 (cmd
!= ELS_CMD_PLOGI
))
7561 ndlp
= lpfc_findnode_did(vport
, did
);
7563 /* Cannot find existing Fabric ndlp, so allocate a new one */
7564 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
7568 lpfc_nlp_init(vport
, ndlp
, did
);
7569 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
7571 if ((did
& Fabric_DID_MASK
) == Fabric_DID_MASK
)
7572 ndlp
->nlp_type
|= NLP_FABRIC
;
7573 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
7574 ndlp
= lpfc_enable_node(vport
, ndlp
,
7575 NLP_STE_UNUSED_NODE
);
7578 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
7580 if ((did
& Fabric_DID_MASK
) == Fabric_DID_MASK
)
7581 ndlp
->nlp_type
|= NLP_FABRIC
;
7582 } else if (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
) {
7583 /* This is similar to the new node path */
7584 ndlp
= lpfc_nlp_get(ndlp
);
7587 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
7591 phba
->fc_stat
.elsRcvFrame
++;
7594 * Do not process any unsolicited ELS commands
7595 * if the ndlp is in DEV_LOSS
7597 shost
= lpfc_shost_from_vport(vport
);
7598 spin_lock_irq(shost
->host_lock
);
7599 if (ndlp
->nlp_flag
& NLP_IN_DEV_LOSS
) {
7600 spin_unlock_irq(shost
->host_lock
);
7603 spin_unlock_irq(shost
->host_lock
);
7605 elsiocb
->context1
= lpfc_nlp_get(ndlp
);
7606 elsiocb
->vport
= vport
;
7608 if ((cmd
& ELS_CMD_MASK
) == ELS_CMD_RSCN
) {
7609 cmd
&= ELS_CMD_MASK
;
7611 /* ELS command <elsCmd> received from NPORT <did> */
7612 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
7613 "0112 ELS command x%x received from NPORT x%x "
7614 "Data: x%x x%x x%x x%x\n",
7615 cmd
, did
, vport
->port_state
, vport
->fc_flag
,
7616 vport
->fc_myDID
, vport
->fc_prevDID
);
7618 /* reject till our FLOGI completes */
7619 if ((vport
->port_state
< LPFC_FABRIC_CFG_LINK
) &&
7620 (cmd
!= ELS_CMD_FLOGI
)) {
7621 rjt_err
= LSRJT_LOGICAL_BSY
;
7622 rjt_exp
= LSEXP_NOTHING_MORE
;
7628 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7629 "RCV PLOGI: did:x%x/ste:x%x flg:x%x",
7630 did
, vport
->port_state
, ndlp
->nlp_flag
);
7632 phba
->fc_stat
.elsRcvPLOGI
++;
7633 ndlp
= lpfc_plogi_confirm_nport(phba
, payload
, ndlp
);
7634 if (phba
->sli_rev
== LPFC_SLI_REV4
&&
7635 (phba
->pport
->fc_flag
& FC_PT2PT
)) {
7636 vport
->fc_prevDID
= vport
->fc_myDID
;
7637 /* Our DID needs to be updated before registering
7638 * the vfi. This is done in lpfc_rcv_plogi but
7639 * that is called after the reg_vfi.
7641 vport
->fc_myDID
= elsiocb
->iocb
.un
.rcvels
.parmRo
;
7642 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
7643 "3312 Remote port assigned DID x%x "
7644 "%x\n", vport
->fc_myDID
,
7648 lpfc_send_els_event(vport
, ndlp
, payload
);
7650 /* If Nport discovery is delayed, reject PLOGIs */
7651 if (vport
->fc_flag
& FC_DISC_DELAYED
) {
7652 rjt_err
= LSRJT_UNABLE_TPC
;
7653 rjt_exp
= LSEXP_NOTHING_MORE
;
7657 if (vport
->port_state
< LPFC_DISC_AUTH
) {
7658 if (!(phba
->pport
->fc_flag
& FC_PT2PT
) ||
7659 (phba
->pport
->fc_flag
& FC_PT2PT_PLOGI
)) {
7660 rjt_err
= LSRJT_UNABLE_TPC
;
7661 rjt_exp
= LSEXP_NOTHING_MORE
;
7666 spin_lock_irq(shost
->host_lock
);
7667 ndlp
->nlp_flag
&= ~NLP_TARGET_REMOVE
;
7668 spin_unlock_irq(shost
->host_lock
);
7670 lpfc_disc_state_machine(vport
, ndlp
, elsiocb
,
7675 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7676 "RCV FLOGI: did:x%x/ste:x%x flg:x%x",
7677 did
, vport
->port_state
, ndlp
->nlp_flag
);
7679 phba
->fc_stat
.elsRcvFLOGI
++;
7680 lpfc_els_rcv_flogi(vport
, elsiocb
, ndlp
);
7685 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7686 "RCV LOGO: did:x%x/ste:x%x flg:x%x",
7687 did
, vport
->port_state
, ndlp
->nlp_flag
);
7689 phba
->fc_stat
.elsRcvLOGO
++;
7690 lpfc_send_els_event(vport
, ndlp
, payload
);
7691 if (vport
->port_state
< LPFC_DISC_AUTH
) {
7692 rjt_err
= LSRJT_UNABLE_TPC
;
7693 rjt_exp
= LSEXP_NOTHING_MORE
;
7696 lpfc_disc_state_machine(vport
, ndlp
, elsiocb
, NLP_EVT_RCV_LOGO
);
7699 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7700 "RCV PRLO: did:x%x/ste:x%x flg:x%x",
7701 did
, vport
->port_state
, ndlp
->nlp_flag
);
7703 phba
->fc_stat
.elsRcvPRLO
++;
7704 lpfc_send_els_event(vport
, ndlp
, payload
);
7705 if (vport
->port_state
< LPFC_DISC_AUTH
) {
7706 rjt_err
= LSRJT_UNABLE_TPC
;
7707 rjt_exp
= LSEXP_NOTHING_MORE
;
7710 lpfc_disc_state_machine(vport
, ndlp
, elsiocb
, NLP_EVT_RCV_PRLO
);
7713 phba
->fc_stat
.elsRcvLCB
++;
7714 lpfc_els_rcv_lcb(vport
, elsiocb
, ndlp
);
7717 phba
->fc_stat
.elsRcvRDP
++;
7718 lpfc_els_rcv_rdp(vport
, elsiocb
, ndlp
);
7721 phba
->fc_stat
.elsRcvRSCN
++;
7722 lpfc_els_rcv_rscn(vport
, elsiocb
, ndlp
);
7727 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7728 "RCV ADISC: did:x%x/ste:x%x flg:x%x",
7729 did
, vport
->port_state
, ndlp
->nlp_flag
);
7731 lpfc_send_els_event(vport
, ndlp
, payload
);
7732 phba
->fc_stat
.elsRcvADISC
++;
7733 if (vport
->port_state
< LPFC_DISC_AUTH
) {
7734 rjt_err
= LSRJT_UNABLE_TPC
;
7735 rjt_exp
= LSEXP_NOTHING_MORE
;
7738 lpfc_disc_state_machine(vport
, ndlp
, elsiocb
,
7742 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7743 "RCV PDISC: did:x%x/ste:x%x flg:x%x",
7744 did
, vport
->port_state
, ndlp
->nlp_flag
);
7746 phba
->fc_stat
.elsRcvPDISC
++;
7747 if (vport
->port_state
< LPFC_DISC_AUTH
) {
7748 rjt_err
= LSRJT_UNABLE_TPC
;
7749 rjt_exp
= LSEXP_NOTHING_MORE
;
7752 lpfc_disc_state_machine(vport
, ndlp
, elsiocb
,
7756 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7757 "RCV FARPR: did:x%x/ste:x%x flg:x%x",
7758 did
, vport
->port_state
, ndlp
->nlp_flag
);
7760 phba
->fc_stat
.elsRcvFARPR
++;
7761 lpfc_els_rcv_farpr(vport
, elsiocb
, ndlp
);
7764 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7765 "RCV FARP: did:x%x/ste:x%x flg:x%x",
7766 did
, vport
->port_state
, ndlp
->nlp_flag
);
7768 phba
->fc_stat
.elsRcvFARP
++;
7769 lpfc_els_rcv_farp(vport
, elsiocb
, ndlp
);
7772 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7773 "RCV FAN: did:x%x/ste:x%x flg:x%x",
7774 did
, vport
->port_state
, ndlp
->nlp_flag
);
7776 phba
->fc_stat
.elsRcvFAN
++;
7777 lpfc_els_rcv_fan(vport
, elsiocb
, ndlp
);
7780 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7781 "RCV PRLI: did:x%x/ste:x%x flg:x%x",
7782 did
, vport
->port_state
, ndlp
->nlp_flag
);
7784 phba
->fc_stat
.elsRcvPRLI
++;
7785 if (vport
->port_state
< LPFC_DISC_AUTH
) {
7786 rjt_err
= LSRJT_UNABLE_TPC
;
7787 rjt_exp
= LSEXP_NOTHING_MORE
;
7790 lpfc_disc_state_machine(vport
, ndlp
, elsiocb
, NLP_EVT_RCV_PRLI
);
7793 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7794 "RCV LIRR: did:x%x/ste:x%x flg:x%x",
7795 did
, vport
->port_state
, ndlp
->nlp_flag
);
7797 phba
->fc_stat
.elsRcvLIRR
++;
7798 lpfc_els_rcv_lirr(vport
, elsiocb
, ndlp
);
7803 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7804 "RCV RLS: did:x%x/ste:x%x flg:x%x",
7805 did
, vport
->port_state
, ndlp
->nlp_flag
);
7807 phba
->fc_stat
.elsRcvRLS
++;
7808 lpfc_els_rcv_rls(vport
, elsiocb
, ndlp
);
7813 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7814 "RCV RPS: did:x%x/ste:x%x flg:x%x",
7815 did
, vport
->port_state
, ndlp
->nlp_flag
);
7817 phba
->fc_stat
.elsRcvRPS
++;
7818 lpfc_els_rcv_rps(vport
, elsiocb
, ndlp
);
7823 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7824 "RCV RPL: did:x%x/ste:x%x flg:x%x",
7825 did
, vport
->port_state
, ndlp
->nlp_flag
);
7827 phba
->fc_stat
.elsRcvRPL
++;
7828 lpfc_els_rcv_rpl(vport
, elsiocb
, ndlp
);
7833 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7834 "RCV RNID: did:x%x/ste:x%x flg:x%x",
7835 did
, vport
->port_state
, ndlp
->nlp_flag
);
7837 phba
->fc_stat
.elsRcvRNID
++;
7838 lpfc_els_rcv_rnid(vport
, elsiocb
, ndlp
);
7843 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7844 "RCV RTV: did:x%x/ste:x%x flg:x%x",
7845 did
, vport
->port_state
, ndlp
->nlp_flag
);
7846 phba
->fc_stat
.elsRcvRTV
++;
7847 lpfc_els_rcv_rtv(vport
, elsiocb
, ndlp
);
7852 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7853 "RCV RRQ: did:x%x/ste:x%x flg:x%x",
7854 did
, vport
->port_state
, ndlp
->nlp_flag
);
7856 phba
->fc_stat
.elsRcvRRQ
++;
7857 lpfc_els_rcv_rrq(vport
, elsiocb
, ndlp
);
7862 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7863 "RCV ECHO: did:x%x/ste:x%x flg:x%x",
7864 did
, vport
->port_state
, ndlp
->nlp_flag
);
7866 phba
->fc_stat
.elsRcvECHO
++;
7867 lpfc_els_rcv_echo(vport
, elsiocb
, ndlp
);
7872 /* receive this due to exchange closed */
7873 rjt_err
= LSRJT_UNABLE_TPC
;
7874 rjt_exp
= LSEXP_INVALID_OX_RX
;
7877 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
7878 "RCV ELS cmd: cmd:x%x did:x%x/ste:x%x",
7879 cmd
, did
, vport
->port_state
);
7881 /* Unsupported ELS command, reject */
7882 rjt_err
= LSRJT_CMD_UNSUPPORTED
;
7883 rjt_exp
= LSEXP_NOTHING_MORE
;
7885 /* Unknown ELS command <elsCmd> received from NPORT <did> */
7886 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
7887 "0115 Unknown ELS command x%x "
7888 "received from NPORT x%x\n", cmd
, did
);
7895 /* check if need to LS_RJT received ELS cmd */
7897 memset(&stat
, 0, sizeof(stat
));
7898 stat
.un
.b
.lsRjtRsnCode
= rjt_err
;
7899 stat
.un
.b
.lsRjtRsnCodeExp
= rjt_exp
;
7900 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, elsiocb
, ndlp
,
7904 lpfc_nlp_put(elsiocb
->context1
);
7905 elsiocb
->context1
= NULL
;
7909 if (vport
&& !(vport
->load_flag
& FC_UNLOADING
))
7910 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
7911 "0111 Dropping received ELS cmd "
7912 "Data: x%x x%x x%x\n",
7913 icmd
->ulpStatus
, icmd
->un
.ulpWord
[4], icmd
->ulpTimeout
);
7914 phba
->fc_stat
.elsRcvDrop
++;
7918 * lpfc_els_unsol_event - Process an unsolicited event from an els sli ring
7919 * @phba: pointer to lpfc hba data structure.
7920 * @pring: pointer to a SLI ring.
7921 * @elsiocb: pointer to lpfc els iocb data structure.
7923 * This routine is used to process an unsolicited event received from a SLI
7924 * (Service Level Interface) ring. The actual processing of the data buffer
7925 * associated with the unsolicited event is done by invoking the routine
7926 * lpfc_els_unsol_buffer() after properly set up the iocb buffer from the
7927 * SLI ring on which the unsolicited event was received.
7930 lpfc_els_unsol_event(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
7931 struct lpfc_iocbq
*elsiocb
)
7933 struct lpfc_vport
*vport
= phba
->pport
;
7934 IOCB_t
*icmd
= &elsiocb
->iocb
;
7936 struct lpfc_dmabuf
*bdeBuf1
= elsiocb
->context2
;
7937 struct lpfc_dmabuf
*bdeBuf2
= elsiocb
->context3
;
7939 elsiocb
->context1
= NULL
;
7940 elsiocb
->context2
= NULL
;
7941 elsiocb
->context3
= NULL
;
7943 if (icmd
->ulpStatus
== IOSTAT_NEED_BUFFER
) {
7944 lpfc_sli_hbqbuf_add_hbqs(phba
, LPFC_ELS_HBQ
);
7945 } else if (icmd
->ulpStatus
== IOSTAT_LOCAL_REJECT
&&
7946 (icmd
->un
.ulpWord
[4] & IOERR_PARAM_MASK
) ==
7947 IOERR_RCV_BUFFER_WAITING
) {
7948 phba
->fc_stat
.NoRcvBuf
++;
7949 /* Not enough posted buffers; Try posting more buffers */
7950 if (!(phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
))
7951 lpfc_post_buffer(phba
, pring
, 0);
7955 if ((phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
7956 (icmd
->ulpCommand
== CMD_IOCB_RCV_ELS64_CX
||
7957 icmd
->ulpCommand
== CMD_IOCB_RCV_SEQ64_CX
)) {
7958 if (icmd
->unsli3
.rcvsli3
.vpi
== 0xffff)
7959 vport
= phba
->pport
;
7961 vport
= lpfc_find_vport_by_vpid(phba
,
7962 icmd
->unsli3
.rcvsli3
.vpi
);
7965 /* If there are no BDEs associated
7966 * with this IOCB, there is nothing to do.
7968 if (icmd
->ulpBdeCount
== 0)
7971 /* type of ELS cmd is first 32bit word
7974 if (phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
) {
7975 elsiocb
->context2
= bdeBuf1
;
7977 paddr
= getPaddr(icmd
->un
.cont64
[0].addrHigh
,
7978 icmd
->un
.cont64
[0].addrLow
);
7979 elsiocb
->context2
= lpfc_sli_ringpostbuf_get(phba
, pring
,
7983 lpfc_els_unsol_buffer(phba
, pring
, vport
, elsiocb
);
7985 * The different unsolicited event handlers would tell us
7986 * if they are done with "mp" by setting context2 to NULL.
7988 if (elsiocb
->context2
) {
7989 lpfc_in_buf_free(phba
, (struct lpfc_dmabuf
*)elsiocb
->context2
);
7990 elsiocb
->context2
= NULL
;
7993 /* RCV_ELS64_CX provide for 2 BDEs - process 2nd if included */
7994 if ((phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
) &&
7995 icmd
->ulpBdeCount
== 2) {
7996 elsiocb
->context2
= bdeBuf2
;
7997 lpfc_els_unsol_buffer(phba
, pring
, vport
, elsiocb
);
7998 /* free mp if we are done with it */
7999 if (elsiocb
->context2
) {
8000 lpfc_in_buf_free(phba
, elsiocb
->context2
);
8001 elsiocb
->context2
= NULL
;
8007 lpfc_start_fdmi(struct lpfc_vport
*vport
)
8009 struct lpfc_hba
*phba
= vport
->phba
;
8010 struct lpfc_nodelist
*ndlp
;
8012 /* If this is the first time, allocate an ndlp and initialize
8013 * it. Otherwise, make sure the node is enabled and then do the
8016 ndlp
= lpfc_findnode_did(vport
, FDMI_DID
);
8018 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
8020 lpfc_nlp_init(vport
, ndlp
, FDMI_DID
);
8021 ndlp
->nlp_type
|= NLP_FABRIC
;
8026 if (!NLP_CHK_NODE_ACT(ndlp
))
8027 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_NPR_NODE
);
8030 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_PLOGI_ISSUE
);
8031 lpfc_issue_els_plogi(vport
, ndlp
->nlp_DID
, 0);
8036 * lpfc_do_scr_ns_plogi - Issue a plogi to the name server for scr
8037 * @phba: pointer to lpfc hba data structure.
8038 * @vport: pointer to a virtual N_Port data structure.
8040 * This routine issues a Port Login (PLOGI) to the Name Server with
8041 * State Change Request (SCR) for a @vport. This routine will create an
8042 * ndlp for the Name Server associated to the @vport if such node does
8043 * not already exist. The PLOGI to Name Server is issued by invoking the
8044 * lpfc_issue_els_plogi() routine. If Fabric-Device Management Interface
8045 * (FDMI) is configured to the @vport, a FDMI node will be created and
8046 * the PLOGI to FDMI is issued by invoking lpfc_issue_els_plogi() routine.
8049 lpfc_do_scr_ns_plogi(struct lpfc_hba
*phba
, struct lpfc_vport
*vport
)
8051 struct lpfc_nodelist
*ndlp
;
8052 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
8055 * If lpfc_delay_discovery parameter is set and the clean address
8056 * bit is cleared and fc fabric parameters chenged, delay FC NPort
8059 spin_lock_irq(shost
->host_lock
);
8060 if (vport
->fc_flag
& FC_DISC_DELAYED
) {
8061 spin_unlock_irq(shost
->host_lock
);
8062 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
,
8063 "3334 Delay fc port discovery for %d seconds\n",
8065 mod_timer(&vport
->delayed_disc_tmo
,
8066 jiffies
+ msecs_to_jiffies(1000 * phba
->fc_ratov
));
8069 spin_unlock_irq(shost
->host_lock
);
8071 ndlp
= lpfc_findnode_did(vport
, NameServer_DID
);
8073 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
8075 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
8076 lpfc_disc_start(vport
);
8079 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
8080 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
8081 "0251 NameServer login: no memory\n");
8084 lpfc_nlp_init(vport
, ndlp
, NameServer_DID
);
8085 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
8086 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_UNUSED_NODE
);
8088 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
8089 lpfc_disc_start(vport
);
8092 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
8093 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
8094 "0348 NameServer login: node freed\n");
8098 ndlp
->nlp_type
|= NLP_FABRIC
;
8100 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_PLOGI_ISSUE
);
8102 if (lpfc_issue_els_plogi(vport
, ndlp
->nlp_DID
, 0)) {
8103 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
8104 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
8105 "0252 Cannot issue NameServer login\n");
8109 if ((phba
->cfg_enable_SmartSAN
||
8110 (phba
->cfg_fdmi_on
== LPFC_FDMI_SUPPORT
)) &&
8111 (vport
->load_flag
& FC_ALLOW_FDMI
))
8112 lpfc_start_fdmi(vport
);
8116 * lpfc_cmpl_reg_new_vport - Completion callback function to register new vport
8117 * @phba: pointer to lpfc hba data structure.
8118 * @pmb: pointer to the driver internal queue element for mailbox command.
8120 * This routine is the completion callback function to register new vport
8121 * mailbox command. If the new vport mailbox command completes successfully,
8122 * the fabric registration login shall be performed on physical port (the
8123 * new vport created is actually a physical port, with VPI 0) or the port
8124 * login to Name Server for State Change Request (SCR) will be performed
8125 * on virtual port (real virtual port, with VPI greater than 0).
8128 lpfc_cmpl_reg_new_vport(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
8130 struct lpfc_vport
*vport
= pmb
->vport
;
8131 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
8132 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
8133 MAILBOX_t
*mb
= &pmb
->u
.mb
;
8136 spin_lock_irq(shost
->host_lock
);
8137 vport
->fc_flag
&= ~FC_VPORT_NEEDS_REG_VPI
;
8138 spin_unlock_irq(shost
->host_lock
);
8140 if (mb
->mbxStatus
) {
8141 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
8142 "0915 Register VPI failed : Status: x%x"
8143 " upd bit: x%x \n", mb
->mbxStatus
,
8144 mb
->un
.varRegVpi
.upd
);
8145 if (phba
->sli_rev
== LPFC_SLI_REV4
&&
8146 mb
->un
.varRegVpi
.upd
)
8147 goto mbox_err_exit
;
8149 switch (mb
->mbxStatus
) {
8150 case 0x11: /* unsupported feature */
8151 case 0x9603: /* max_vpi exceeded */
8152 case 0x9602: /* Link event since CLEAR_LA */
8153 /* giving up on vport registration */
8154 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
8155 spin_lock_irq(shost
->host_lock
);
8156 vport
->fc_flag
&= ~(FC_FABRIC
| FC_PUBLIC_LOOP
);
8157 spin_unlock_irq(shost
->host_lock
);
8158 lpfc_can_disctmo(vport
);
8160 /* If reg_vpi fail with invalid VPI status, re-init VPI */
8162 spin_lock_irq(shost
->host_lock
);
8163 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
8164 spin_unlock_irq(shost
->host_lock
);
8165 lpfc_init_vpi(phba
, pmb
, vport
->vpi
);
8167 pmb
->mbox_cmpl
= lpfc_init_vpi_cmpl
;
8168 rc
= lpfc_sli_issue_mbox(phba
, pmb
,
8170 if (rc
== MBX_NOT_FINISHED
) {
8171 lpfc_printf_vlog(vport
,
8173 "2732 Failed to issue INIT_VPI"
8174 " mailbox command\n");
8181 /* Try to recover from this error */
8182 if (phba
->sli_rev
== LPFC_SLI_REV4
)
8183 lpfc_sli4_unreg_all_rpis(vport
);
8184 lpfc_mbx_unreg_vpi(vport
);
8185 spin_lock_irq(shost
->host_lock
);
8186 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
8187 spin_unlock_irq(shost
->host_lock
);
8188 if (vport
->port_type
== LPFC_PHYSICAL_PORT
8189 && !(vport
->fc_flag
& FC_LOGO_RCVD_DID_CHNG
))
8190 lpfc_issue_init_vfi(vport
);
8192 lpfc_initial_fdisc(vport
);
8196 spin_lock_irq(shost
->host_lock
);
8197 vport
->vpi_state
|= LPFC_VPI_REGISTERED
;
8198 spin_unlock_irq(shost
->host_lock
);
8199 if (vport
== phba
->pport
) {
8200 if (phba
->sli_rev
< LPFC_SLI_REV4
)
8201 lpfc_issue_fabric_reglogin(vport
);
8204 * If the physical port is instantiated using
8205 * FDISC, do not start vport discovery.
8207 if (vport
->port_state
!= LPFC_FDISC
)
8208 lpfc_start_fdiscs(phba
);
8209 lpfc_do_scr_ns_plogi(phba
, vport
);
8212 lpfc_do_scr_ns_plogi(phba
, vport
);
8215 /* Now, we decrement the ndlp reference count held for this
8220 mempool_free(pmb
, phba
->mbox_mem_pool
);
8225 * lpfc_register_new_vport - Register a new vport with a HBA
8226 * @phba: pointer to lpfc hba data structure.
8227 * @vport: pointer to a host virtual N_Port data structure.
8228 * @ndlp: pointer to a node-list data structure.
8230 * This routine registers the @vport as a new virtual port with a HBA.
8231 * It is done through a registering vpi mailbox command.
8234 lpfc_register_new_vport(struct lpfc_hba
*phba
, struct lpfc_vport
*vport
,
8235 struct lpfc_nodelist
*ndlp
)
8237 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
8240 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
8242 lpfc_reg_vpi(vport
, mbox
);
8243 mbox
->vport
= vport
;
8244 mbox
->context2
= lpfc_nlp_get(ndlp
);
8245 mbox
->mbox_cmpl
= lpfc_cmpl_reg_new_vport
;
8246 if (lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
)
8247 == MBX_NOT_FINISHED
) {
8248 /* mailbox command not success, decrement ndlp
8249 * reference count for this command
8252 mempool_free(mbox
, phba
->mbox_mem_pool
);
8254 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
8255 "0253 Register VPI: Can't send mbox\n");
8259 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
8260 "0254 Register VPI: no memory\n");
8266 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
8267 spin_lock_irq(shost
->host_lock
);
8268 vport
->fc_flag
&= ~FC_VPORT_NEEDS_REG_VPI
;
8269 spin_unlock_irq(shost
->host_lock
);
8274 * lpfc_cancel_all_vport_retry_delay_timer - Cancel all vport retry delay timer
8275 * @phba: pointer to lpfc hba data structure.
8277 * This routine cancels the retry delay timers to all the vports.
8280 lpfc_cancel_all_vport_retry_delay_timer(struct lpfc_hba
*phba
)
8282 struct lpfc_vport
**vports
;
8283 struct lpfc_nodelist
*ndlp
;
8284 uint32_t link_state
;
8287 /* Treat this failure as linkdown for all vports */
8288 link_state
= phba
->link_state
;
8289 lpfc_linkdown(phba
);
8290 phba
->link_state
= link_state
;
8292 vports
= lpfc_create_vport_work_array(phba
);
8295 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
8296 ndlp
= lpfc_findnode_did(vports
[i
], Fabric_DID
);
8298 lpfc_cancel_retry_delay_tmo(vports
[i
], ndlp
);
8299 lpfc_els_flush_cmd(vports
[i
]);
8301 lpfc_destroy_vport_work_array(phba
, vports
);
8306 * lpfc_retry_pport_discovery - Start timer to retry FLOGI.
8307 * @phba: pointer to lpfc hba data structure.
8309 * This routine abort all pending discovery commands and
8310 * start a timer to retry FLOGI for the physical port
8314 lpfc_retry_pport_discovery(struct lpfc_hba
*phba
)
8316 struct lpfc_nodelist
*ndlp
;
8317 struct Scsi_Host
*shost
;
8319 /* Cancel the all vports retry delay retry timers */
8320 lpfc_cancel_all_vport_retry_delay_timer(phba
);
8322 /* If fabric require FLOGI, then re-instantiate physical login */
8323 ndlp
= lpfc_findnode_did(phba
->pport
, Fabric_DID
);
8327 shost
= lpfc_shost_from_vport(phba
->pport
);
8328 mod_timer(&ndlp
->nlp_delayfunc
, jiffies
+ msecs_to_jiffies(1000));
8329 spin_lock_irq(shost
->host_lock
);
8330 ndlp
->nlp_flag
|= NLP_DELAY_TMO
;
8331 spin_unlock_irq(shost
->host_lock
);
8332 ndlp
->nlp_last_elscmd
= ELS_CMD_FLOGI
;
8333 phba
->pport
->port_state
= LPFC_FLOGI
;
8338 * lpfc_fabric_login_reqd - Check if FLOGI required.
8339 * @phba: pointer to lpfc hba data structure.
8340 * @cmdiocb: pointer to FDISC command iocb.
8341 * @rspiocb: pointer to FDISC response iocb.
8343 * This routine checks if a FLOGI is reguired for FDISC
8347 lpfc_fabric_login_reqd(struct lpfc_hba
*phba
,
8348 struct lpfc_iocbq
*cmdiocb
,
8349 struct lpfc_iocbq
*rspiocb
)
8352 if ((rspiocb
->iocb
.ulpStatus
!= IOSTAT_FABRIC_RJT
) ||
8353 (rspiocb
->iocb
.un
.ulpWord
[4] != RJT_LOGIN_REQUIRED
))
8360 * lpfc_cmpl_els_fdisc - Completion function for fdisc iocb command
8361 * @phba: pointer to lpfc hba data structure.
8362 * @cmdiocb: pointer to lpfc command iocb data structure.
8363 * @rspiocb: pointer to lpfc response iocb data structure.
8365 * This routine is the completion callback function to a Fabric Discover
8366 * (FDISC) ELS command. Since all the FDISC ELS commands are issued
8367 * single threaded, each FDISC completion callback function will reset
8368 * the discovery timer for all vports such that the timers will not get
8369 * unnecessary timeout. The function checks the FDISC IOCB status. If error
8370 * detected, the vport will be set to FC_VPORT_FAILED state. Otherwise,the
8371 * vport will set to FC_VPORT_ACTIVE state. It then checks whether the DID
8372 * assigned to the vport has been changed with the completion of the FDISC
8373 * command. If so, both RPI (Remote Port Index) and VPI (Virtual Port Index)
8374 * are unregistered from the HBA, and then the lpfc_register_new_vport()
8375 * routine is invoked to register new vport with the HBA. Otherwise, the
8376 * lpfc_do_scr_ns_plogi() routine is invoked to issue a PLOGI to the Name
8377 * Server for State Change Request (SCR).
8380 lpfc_cmpl_els_fdisc(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
8381 struct lpfc_iocbq
*rspiocb
)
8383 struct lpfc_vport
*vport
= cmdiocb
->vport
;
8384 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
8385 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) cmdiocb
->context1
;
8386 struct lpfc_nodelist
*np
;
8387 struct lpfc_nodelist
*next_np
;
8388 IOCB_t
*irsp
= &rspiocb
->iocb
;
8389 struct lpfc_iocbq
*piocb
;
8390 struct lpfc_dmabuf
*pcmd
= cmdiocb
->context2
, *prsp
;
8391 struct serv_parm
*sp
;
8392 uint8_t fabric_param_changed
;
8394 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
8395 "0123 FDISC completes. x%x/x%x prevDID: x%x\n",
8396 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
8398 /* Since all FDISCs are being single threaded, we
8399 * must reset the discovery timer for ALL vports
8400 * waiting to send FDISC when one completes.
8402 list_for_each_entry(piocb
, &phba
->fabric_iocb_list
, list
) {
8403 lpfc_set_disctmo(piocb
->vport
);
8406 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
8407 "FDISC cmpl: status:x%x/x%x prevdid:x%x",
8408 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4], vport
->fc_prevDID
);
8410 if (irsp
->ulpStatus
) {
8412 if (lpfc_fabric_login_reqd(phba
, cmdiocb
, rspiocb
)) {
8413 lpfc_retry_pport_discovery(phba
);
8417 /* Check for retry */
8418 if (lpfc_els_retry(phba
, cmdiocb
, rspiocb
))
8421 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
8422 "0126 FDISC failed. (x%x/x%x)\n",
8423 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4]);
8426 spin_lock_irq(shost
->host_lock
);
8427 vport
->fc_flag
&= ~FC_VPORT_CVL_RCVD
;
8428 vport
->fc_flag
&= ~FC_VPORT_LOGO_RCVD
;
8429 vport
->fc_flag
|= FC_FABRIC
;
8430 if (vport
->phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
)
8431 vport
->fc_flag
|= FC_PUBLIC_LOOP
;
8432 spin_unlock_irq(shost
->host_lock
);
8434 vport
->fc_myDID
= irsp
->un
.ulpWord
[4] & Mask_DID
;
8435 lpfc_vport_set_state(vport
, FC_VPORT_ACTIVE
);
8436 prsp
= list_get_first(&pcmd
->list
, struct lpfc_dmabuf
, list
);
8439 sp
= prsp
->virt
+ sizeof(uint32_t);
8440 fabric_param_changed
= lpfc_check_clean_addr_bit(vport
, sp
);
8441 memcpy(&vport
->fabric_portname
, &sp
->portName
,
8442 sizeof(struct lpfc_name
));
8443 memcpy(&vport
->fabric_nodename
, &sp
->nodeName
,
8444 sizeof(struct lpfc_name
));
8445 if (fabric_param_changed
&&
8446 !(vport
->fc_flag
& FC_VPORT_NEEDS_REG_VPI
)) {
8447 /* If our NportID changed, we need to ensure all
8448 * remaining NPORTs get unreg_login'ed so we can
8451 list_for_each_entry_safe(np
, next_np
,
8452 &vport
->fc_nodes
, nlp_listp
) {
8453 if (!NLP_CHK_NODE_ACT(ndlp
) ||
8454 (np
->nlp_state
!= NLP_STE_NPR_NODE
) ||
8455 !(np
->nlp_flag
& NLP_NPR_ADISC
))
8457 spin_lock_irq(shost
->host_lock
);
8458 np
->nlp_flag
&= ~NLP_NPR_ADISC
;
8459 spin_unlock_irq(shost
->host_lock
);
8460 lpfc_unreg_rpi(vport
, np
);
8462 lpfc_cleanup_pending_mbox(vport
);
8464 if (phba
->sli_rev
== LPFC_SLI_REV4
)
8465 lpfc_sli4_unreg_all_rpis(vport
);
8467 lpfc_mbx_unreg_vpi(vport
);
8468 spin_lock_irq(shost
->host_lock
);
8469 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
8470 if (phba
->sli_rev
== LPFC_SLI_REV4
)
8471 vport
->fc_flag
|= FC_VPORT_NEEDS_INIT_VPI
;
8473 vport
->fc_flag
|= FC_LOGO_RCVD_DID_CHNG
;
8474 spin_unlock_irq(shost
->host_lock
);
8475 } else if ((phba
->sli_rev
== LPFC_SLI_REV4
) &&
8476 !(vport
->fc_flag
& FC_VPORT_NEEDS_REG_VPI
)) {
8478 * Driver needs to re-reg VPI in order for f/w
8479 * to update the MAC address.
8481 lpfc_register_new_vport(phba
, vport
, ndlp
);
8485 if (vport
->fc_flag
& FC_VPORT_NEEDS_INIT_VPI
)
8486 lpfc_issue_init_vpi(vport
);
8487 else if (vport
->fc_flag
& FC_VPORT_NEEDS_REG_VPI
)
8488 lpfc_register_new_vport(phba
, vport
, ndlp
);
8490 lpfc_do_scr_ns_plogi(phba
, vport
);
8493 if (vport
->fc_vport
->vport_state
!= FC_VPORT_NO_FABRIC_RSCS
)
8494 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
8495 /* Cancel discovery timer */
8496 lpfc_can_disctmo(vport
);
8499 lpfc_els_free_iocb(phba
, cmdiocb
);
8503 * lpfc_issue_els_fdisc - Issue a fdisc iocb command
8504 * @vport: pointer to a virtual N_Port data structure.
8505 * @ndlp: pointer to a node-list data structure.
8506 * @retry: number of retries to the command IOCB.
8508 * This routine prepares and issues a Fabric Discover (FDISC) IOCB to
8509 * a remote node (@ndlp) off a @vport. It uses the lpfc_issue_fabric_iocb()
8510 * routine to issue the IOCB, which makes sure only one outstanding fabric
8511 * IOCB will be sent off HBA at any given time.
8513 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
8514 * will be incremented by 1 for holding the ndlp and the reference to ndlp
8515 * will be stored into the context1 field of the IOCB for the completion
8516 * callback function to the FDISC ELS command.
8519 * 0 - Successfully issued fdisc iocb command
8520 * 1 - Failed to issue fdisc iocb command
8523 lpfc_issue_els_fdisc(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
8526 struct lpfc_hba
*phba
= vport
->phba
;
8528 struct lpfc_iocbq
*elsiocb
;
8529 struct serv_parm
*sp
;
8532 int did
= ndlp
->nlp_DID
;
8535 vport
->port_state
= LPFC_FDISC
;
8536 vport
->fc_myDID
= 0;
8537 cmdsize
= (sizeof(uint32_t) + sizeof(struct serv_parm
));
8538 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
, did
,
8541 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
8542 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
8543 "0255 Issue FDISC: no IOCB\n");
8547 icmd
= &elsiocb
->iocb
;
8548 icmd
->un
.elsreq64
.myID
= 0;
8549 icmd
->un
.elsreq64
.fl
= 1;
8552 * SLI3 ports require a different context type value than SLI4.
8553 * Catch SLI3 ports here and override the prep.
8555 if (phba
->sli_rev
== LPFC_SLI_REV3
) {
8560 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
8561 *((uint32_t *) (pcmd
)) = ELS_CMD_FDISC
;
8562 pcmd
+= sizeof(uint32_t); /* CSP Word 1 */
8563 memcpy(pcmd
, &vport
->phba
->pport
->fc_sparam
, sizeof(struct serv_parm
));
8564 sp
= (struct serv_parm
*) pcmd
;
8565 /* Setup CSPs accordingly for Fabric */
8566 sp
->cmn
.e_d_tov
= 0;
8567 sp
->cmn
.w2
.r_a_tov
= 0;
8568 sp
->cmn
.virtual_fabric_support
= 0;
8569 sp
->cls1
.classValid
= 0;
8570 sp
->cls2
.seqDelivery
= 1;
8571 sp
->cls3
.seqDelivery
= 1;
8573 pcmd
+= sizeof(uint32_t); /* CSP Word 2 */
8574 pcmd
+= sizeof(uint32_t); /* CSP Word 3 */
8575 pcmd
+= sizeof(uint32_t); /* CSP Word 4 */
8576 pcmd
+= sizeof(uint32_t); /* Port Name */
8577 memcpy(pcmd
, &vport
->fc_portname
, 8);
8578 pcmd
+= sizeof(uint32_t); /* Node Name */
8579 pcmd
+= sizeof(uint32_t); /* Node Name */
8580 memcpy(pcmd
, &vport
->fc_nodename
, 8);
8582 lpfc_set_disctmo(vport
);
8584 phba
->fc_stat
.elsXmitFDISC
++;
8585 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_fdisc
;
8587 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
8588 "Issue FDISC: did:x%x",
8591 rc
= lpfc_issue_fabric_iocb(phba
, elsiocb
);
8592 if (rc
== IOCB_ERROR
) {
8593 lpfc_els_free_iocb(phba
, elsiocb
);
8594 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
8595 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
8596 "0256 Issue FDISC: Cannot send IOCB\n");
8599 lpfc_vport_set_state(vport
, FC_VPORT_INITIALIZING
);
8604 * lpfc_cmpl_els_npiv_logo - Completion function with vport logo
8605 * @phba: pointer to lpfc hba data structure.
8606 * @cmdiocb: pointer to lpfc command iocb data structure.
8607 * @rspiocb: pointer to lpfc response iocb data structure.
8609 * This routine is the completion callback function to the issuing of a LOGO
8610 * ELS command off a vport. It frees the command IOCB and then decrement the
8611 * reference count held on ndlp for this completion function, indicating that
8612 * the reference to the ndlp is no long needed. Note that the
8613 * lpfc_els_free_iocb() routine decrements the ndlp reference held for this
8614 * callback function and an additional explicit ndlp reference decrementation
8615 * will trigger the actual release of the ndlp.
8618 lpfc_cmpl_els_npiv_logo(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
8619 struct lpfc_iocbq
*rspiocb
)
8621 struct lpfc_vport
*vport
= cmdiocb
->vport
;
8623 struct lpfc_nodelist
*ndlp
;
8624 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
8626 ndlp
= (struct lpfc_nodelist
*)cmdiocb
->context1
;
8627 irsp
= &rspiocb
->iocb
;
8628 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
8629 "LOGO npiv cmpl: status:x%x/x%x did:x%x",
8630 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4], irsp
->un
.rcvels
.remoteID
);
8632 lpfc_els_free_iocb(phba
, cmdiocb
);
8633 vport
->unreg_vpi_cmpl
= VPORT_ERROR
;
8635 /* Trigger the release of the ndlp after logo */
8638 /* NPIV LOGO completes to NPort <nlp_DID> */
8639 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
8640 "2928 NPIV LOGO completes to NPort x%x "
8641 "Data: x%x x%x x%x x%x\n",
8642 ndlp
->nlp_DID
, irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
8643 irsp
->ulpTimeout
, vport
->num_disc_nodes
);
8645 if (irsp
->ulpStatus
== IOSTAT_SUCCESS
) {
8646 spin_lock_irq(shost
->host_lock
);
8647 vport
->fc_flag
&= ~FC_NDISC_ACTIVE
;
8648 vport
->fc_flag
&= ~FC_FABRIC
;
8649 spin_unlock_irq(shost
->host_lock
);
8650 lpfc_can_disctmo(vport
);
8655 * lpfc_issue_els_npiv_logo - Issue a logo off a vport
8656 * @vport: pointer to a virtual N_Port data structure.
8657 * @ndlp: pointer to a node-list data structure.
8659 * This routine issues a LOGO ELS command to an @ndlp off a @vport.
8661 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
8662 * will be incremented by 1 for holding the ndlp and the reference to ndlp
8663 * will be stored into the context1 field of the IOCB for the completion
8664 * callback function to the LOGO ELS command.
8667 * 0 - Successfully issued logo off the @vport
8668 * 1 - Failed to issue logo off the @vport
8671 lpfc_issue_els_npiv_logo(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
8673 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
8674 struct lpfc_hba
*phba
= vport
->phba
;
8675 struct lpfc_iocbq
*elsiocb
;
8679 cmdsize
= 2 * sizeof(uint32_t) + sizeof(struct lpfc_name
);
8680 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, 0, ndlp
, ndlp
->nlp_DID
,
8685 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
8686 *((uint32_t *) (pcmd
)) = ELS_CMD_LOGO
;
8687 pcmd
+= sizeof(uint32_t);
8689 /* Fill in LOGO payload */
8690 *((uint32_t *) (pcmd
)) = be32_to_cpu(vport
->fc_myDID
);
8691 pcmd
+= sizeof(uint32_t);
8692 memcpy(pcmd
, &vport
->fc_portname
, sizeof(struct lpfc_name
));
8694 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
8695 "Issue LOGO npiv did:x%x flg:x%x",
8696 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
8698 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_npiv_logo
;
8699 spin_lock_irq(shost
->host_lock
);
8700 ndlp
->nlp_flag
|= NLP_LOGO_SND
;
8701 spin_unlock_irq(shost
->host_lock
);
8702 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) ==
8704 spin_lock_irq(shost
->host_lock
);
8705 ndlp
->nlp_flag
&= ~NLP_LOGO_SND
;
8706 spin_unlock_irq(shost
->host_lock
);
8707 lpfc_els_free_iocb(phba
, elsiocb
);
8714 * lpfc_fabric_block_timeout - Handler function to the fabric block timer
8715 * @ptr: holder for the timer function associated data.
8717 * This routine is invoked by the fabric iocb block timer after
8718 * timeout. It posts the fabric iocb block timeout event by setting the
8719 * WORKER_FABRIC_BLOCK_TMO bit to work port event bitmap and then invokes
8720 * lpfc_worker_wake_up() routine to wake up the worker thread. It is for
8721 * the worker thread to invoke the lpfc_unblock_fabric_iocbs() on the
8722 * posted event WORKER_FABRIC_BLOCK_TMO.
8725 lpfc_fabric_block_timeout(unsigned long ptr
)
8727 struct lpfc_hba
*phba
= (struct lpfc_hba
*) ptr
;
8728 unsigned long iflags
;
8729 uint32_t tmo_posted
;
8731 spin_lock_irqsave(&phba
->pport
->work_port_lock
, iflags
);
8732 tmo_posted
= phba
->pport
->work_port_events
& WORKER_FABRIC_BLOCK_TMO
;
8734 phba
->pport
->work_port_events
|= WORKER_FABRIC_BLOCK_TMO
;
8735 spin_unlock_irqrestore(&phba
->pport
->work_port_lock
, iflags
);
8738 lpfc_worker_wake_up(phba
);
8743 * lpfc_resume_fabric_iocbs - Issue a fabric iocb from driver internal list
8744 * @phba: pointer to lpfc hba data structure.
8746 * This routine issues one fabric iocb from the driver internal list to
8747 * the HBA. It first checks whether it's ready to issue one fabric iocb to
8748 * the HBA (whether there is no outstanding fabric iocb). If so, it shall
8749 * remove one pending fabric iocb from the driver internal list and invokes
8750 * lpfc_sli_issue_iocb() routine to send the fabric iocb to the HBA.
8753 lpfc_resume_fabric_iocbs(struct lpfc_hba
*phba
)
8755 struct lpfc_iocbq
*iocb
;
8756 unsigned long iflags
;
8762 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8763 /* Post any pending iocb to the SLI layer */
8764 if (atomic_read(&phba
->fabric_iocb_count
) == 0) {
8765 list_remove_head(&phba
->fabric_iocb_list
, iocb
, typeof(*iocb
),
8768 /* Increment fabric iocb count to hold the position */
8769 atomic_inc(&phba
->fabric_iocb_count
);
8771 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8773 iocb
->fabric_iocb_cmpl
= iocb
->iocb_cmpl
;
8774 iocb
->iocb_cmpl
= lpfc_cmpl_fabric_iocb
;
8775 iocb
->iocb_flag
|= LPFC_IO_FABRIC
;
8777 lpfc_debugfs_disc_trc(iocb
->vport
, LPFC_DISC_TRC_ELS_CMD
,
8778 "Fabric sched1: ste:x%x",
8779 iocb
->vport
->port_state
, 0, 0);
8781 ret
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, iocb
, 0);
8783 if (ret
== IOCB_ERROR
) {
8784 iocb
->iocb_cmpl
= iocb
->fabric_iocb_cmpl
;
8785 iocb
->fabric_iocb_cmpl
= NULL
;
8786 iocb
->iocb_flag
&= ~LPFC_IO_FABRIC
;
8788 cmd
->ulpStatus
= IOSTAT_LOCAL_REJECT
;
8789 cmd
->un
.ulpWord
[4] = IOERR_SLI_ABORTED
;
8790 iocb
->iocb_cmpl(phba
, iocb
, iocb
);
8792 atomic_dec(&phba
->fabric_iocb_count
);
8801 * lpfc_unblock_fabric_iocbs - Unblock issuing fabric iocb command
8802 * @phba: pointer to lpfc hba data structure.
8804 * This routine unblocks the issuing fabric iocb command. The function
8805 * will clear the fabric iocb block bit and then invoke the routine
8806 * lpfc_resume_fabric_iocbs() to issue one of the pending fabric iocb
8807 * from the driver internal fabric iocb list.
8810 lpfc_unblock_fabric_iocbs(struct lpfc_hba
*phba
)
8812 clear_bit(FABRIC_COMANDS_BLOCKED
, &phba
->bit_flags
);
8814 lpfc_resume_fabric_iocbs(phba
);
8819 * lpfc_block_fabric_iocbs - Block issuing fabric iocb command
8820 * @phba: pointer to lpfc hba data structure.
8822 * This routine blocks the issuing fabric iocb for a specified amount of
8823 * time (currently 100 ms). This is done by set the fabric iocb block bit
8824 * and set up a timeout timer for 100ms. When the block bit is set, no more
8825 * fabric iocb will be issued out of the HBA.
8828 lpfc_block_fabric_iocbs(struct lpfc_hba
*phba
)
8832 blocked
= test_and_set_bit(FABRIC_COMANDS_BLOCKED
, &phba
->bit_flags
);
8833 /* Start a timer to unblock fabric iocbs after 100ms */
8835 mod_timer(&phba
->fabric_block_timer
,
8836 jiffies
+ msecs_to_jiffies(100));
8842 * lpfc_cmpl_fabric_iocb - Completion callback function for fabric iocb
8843 * @phba: pointer to lpfc hba data structure.
8844 * @cmdiocb: pointer to lpfc command iocb data structure.
8845 * @rspiocb: pointer to lpfc response iocb data structure.
8847 * This routine is the callback function that is put to the fabric iocb's
8848 * callback function pointer (iocb->iocb_cmpl). The original iocb's callback
8849 * function pointer has been stored in iocb->fabric_iocb_cmpl. This callback
8850 * function first restores and invokes the original iocb's callback function
8851 * and then invokes the lpfc_resume_fabric_iocbs() routine to issue the next
8852 * fabric bound iocb from the driver internal fabric iocb list onto the wire.
8855 lpfc_cmpl_fabric_iocb(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
8856 struct lpfc_iocbq
*rspiocb
)
8860 BUG_ON((cmdiocb
->iocb_flag
& LPFC_IO_FABRIC
) != LPFC_IO_FABRIC
);
8862 switch (rspiocb
->iocb
.ulpStatus
) {
8863 case IOSTAT_NPORT_RJT
:
8864 case IOSTAT_FABRIC_RJT
:
8865 if (rspiocb
->iocb
.un
.ulpWord
[4] & RJT_UNAVAIL_TEMP
) {
8866 lpfc_block_fabric_iocbs(phba
);
8870 case IOSTAT_NPORT_BSY
:
8871 case IOSTAT_FABRIC_BSY
:
8872 lpfc_block_fabric_iocbs(phba
);
8876 stat
.un
.lsRjtError
=
8877 be32_to_cpu(rspiocb
->iocb
.un
.ulpWord
[4]);
8878 if ((stat
.un
.b
.lsRjtRsnCode
== LSRJT_UNABLE_TPC
) ||
8879 (stat
.un
.b
.lsRjtRsnCode
== LSRJT_LOGICAL_BSY
))
8880 lpfc_block_fabric_iocbs(phba
);
8884 if (atomic_read(&phba
->fabric_iocb_count
) == 0)
8887 cmdiocb
->iocb_cmpl
= cmdiocb
->fabric_iocb_cmpl
;
8888 cmdiocb
->fabric_iocb_cmpl
= NULL
;
8889 cmdiocb
->iocb_flag
&= ~LPFC_IO_FABRIC
;
8890 cmdiocb
->iocb_cmpl(phba
, cmdiocb
, rspiocb
);
8892 atomic_dec(&phba
->fabric_iocb_count
);
8893 if (!test_bit(FABRIC_COMANDS_BLOCKED
, &phba
->bit_flags
)) {
8894 /* Post any pending iocbs to HBA */
8895 lpfc_resume_fabric_iocbs(phba
);
8900 * lpfc_issue_fabric_iocb - Issue a fabric iocb command
8901 * @phba: pointer to lpfc hba data structure.
8902 * @iocb: pointer to lpfc command iocb data structure.
8904 * This routine is used as the top-level API for issuing a fabric iocb command
8905 * such as FLOGI and FDISC. To accommodate certain switch fabric, this driver
8906 * function makes sure that only one fabric bound iocb will be outstanding at
8907 * any given time. As such, this function will first check to see whether there
8908 * is already an outstanding fabric iocb on the wire. If so, it will put the
8909 * newly issued iocb onto the driver internal fabric iocb list, waiting to be
8910 * issued later. Otherwise, it will issue the iocb on the wire and update the
8911 * fabric iocb count it indicate that there is one fabric iocb on the wire.
8913 * Note, this implementation has a potential sending out fabric IOCBs out of
8914 * order. The problem is caused by the construction of the "ready" boolen does
8915 * not include the condition that the internal fabric IOCB list is empty. As
8916 * such, it is possible a fabric IOCB issued by this routine might be "jump"
8917 * ahead of the fabric IOCBs in the internal list.
8920 * IOCB_SUCCESS - either fabric iocb put on the list or issued successfully
8921 * IOCB_ERROR - failed to issue fabric iocb
8924 lpfc_issue_fabric_iocb(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocb
)
8926 unsigned long iflags
;
8930 if (atomic_read(&phba
->fabric_iocb_count
) > 1)
8933 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8934 ready
= atomic_read(&phba
->fabric_iocb_count
) == 0 &&
8935 !test_bit(FABRIC_COMANDS_BLOCKED
, &phba
->bit_flags
);
8938 /* Increment fabric iocb count to hold the position */
8939 atomic_inc(&phba
->fabric_iocb_count
);
8940 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8942 iocb
->fabric_iocb_cmpl
= iocb
->iocb_cmpl
;
8943 iocb
->iocb_cmpl
= lpfc_cmpl_fabric_iocb
;
8944 iocb
->iocb_flag
|= LPFC_IO_FABRIC
;
8946 lpfc_debugfs_disc_trc(iocb
->vport
, LPFC_DISC_TRC_ELS_CMD
,
8947 "Fabric sched2: ste:x%x",
8948 iocb
->vport
->port_state
, 0, 0);
8950 ret
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, iocb
, 0);
8952 if (ret
== IOCB_ERROR
) {
8953 iocb
->iocb_cmpl
= iocb
->fabric_iocb_cmpl
;
8954 iocb
->fabric_iocb_cmpl
= NULL
;
8955 iocb
->iocb_flag
&= ~LPFC_IO_FABRIC
;
8956 atomic_dec(&phba
->fabric_iocb_count
);
8959 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8960 list_add_tail(&iocb
->list
, &phba
->fabric_iocb_list
);
8961 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8968 * lpfc_fabric_abort_vport - Abort a vport's iocbs from driver fabric iocb list
8969 * @vport: pointer to a virtual N_Port data structure.
8971 * This routine aborts all the IOCBs associated with a @vport from the
8972 * driver internal fabric IOCB list. The list contains fabric IOCBs to be
8973 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB
8974 * list, removes each IOCB associated with the @vport off the list, set the
8975 * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function
8976 * associated with the IOCB.
8978 static void lpfc_fabric_abort_vport(struct lpfc_vport
*vport
)
8980 LIST_HEAD(completions
);
8981 struct lpfc_hba
*phba
= vport
->phba
;
8982 struct lpfc_iocbq
*tmp_iocb
, *piocb
;
8984 spin_lock_irq(&phba
->hbalock
);
8985 list_for_each_entry_safe(piocb
, tmp_iocb
, &phba
->fabric_iocb_list
,
8988 if (piocb
->vport
!= vport
)
8991 list_move_tail(&piocb
->list
, &completions
);
8993 spin_unlock_irq(&phba
->hbalock
);
8995 /* Cancel all the IOCBs from the completions list */
8996 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
9001 * lpfc_fabric_abort_nport - Abort a ndlp's iocbs from driver fabric iocb list
9002 * @ndlp: pointer to a node-list data structure.
9004 * This routine aborts all the IOCBs associated with an @ndlp from the
9005 * driver internal fabric IOCB list. The list contains fabric IOCBs to be
9006 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB
9007 * list, removes each IOCB associated with the @ndlp off the list, set the
9008 * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function
9009 * associated with the IOCB.
9011 void lpfc_fabric_abort_nport(struct lpfc_nodelist
*ndlp
)
9013 LIST_HEAD(completions
);
9014 struct lpfc_hba
*phba
= ndlp
->phba
;
9015 struct lpfc_iocbq
*tmp_iocb
, *piocb
;
9016 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
9018 spin_lock_irq(&phba
->hbalock
);
9019 list_for_each_entry_safe(piocb
, tmp_iocb
, &phba
->fabric_iocb_list
,
9021 if ((lpfc_check_sli_ndlp(phba
, pring
, piocb
, ndlp
))) {
9023 list_move_tail(&piocb
->list
, &completions
);
9026 spin_unlock_irq(&phba
->hbalock
);
9028 /* Cancel all the IOCBs from the completions list */
9029 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
9034 * lpfc_fabric_abort_hba - Abort all iocbs on driver fabric iocb list
9035 * @phba: pointer to lpfc hba data structure.
9037 * This routine aborts all the IOCBs currently on the driver internal
9038 * fabric IOCB list. The list contains fabric IOCBs to be issued to the ELS
9039 * IOCB ring. This function takes the entire IOCB list off the fabric IOCB
9040 * list, removes IOCBs off the list, set the status feild to
9041 * IOSTAT_LOCAL_REJECT, and invokes the callback function associated with
9044 void lpfc_fabric_abort_hba(struct lpfc_hba
*phba
)
9046 LIST_HEAD(completions
);
9048 spin_lock_irq(&phba
->hbalock
);
9049 list_splice_init(&phba
->fabric_iocb_list
, &completions
);
9050 spin_unlock_irq(&phba
->hbalock
);
9052 /* Cancel all the IOCBs from the completions list */
9053 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
9058 * lpfc_sli4_vport_delete_els_xri_aborted -Remove all ndlp references for vport
9059 * @vport: pointer to lpfc vport data structure.
9061 * This routine is invoked by the vport cleanup for deletions and the cleanup
9062 * for an ndlp on removal.
9065 lpfc_sli4_vport_delete_els_xri_aborted(struct lpfc_vport
*vport
)
9067 struct lpfc_hba
*phba
= vport
->phba
;
9068 struct lpfc_sglq
*sglq_entry
= NULL
, *sglq_next
= NULL
;
9069 unsigned long iflag
= 0;
9071 spin_lock_irqsave(&phba
->hbalock
, iflag
);
9072 spin_lock(&phba
->sli4_hba
.abts_sgl_list_lock
);
9073 list_for_each_entry_safe(sglq_entry
, sglq_next
,
9074 &phba
->sli4_hba
.lpfc_abts_els_sgl_list
, list
) {
9075 if (sglq_entry
->ndlp
&& sglq_entry
->ndlp
->vport
== vport
)
9076 sglq_entry
->ndlp
= NULL
;
9078 spin_unlock(&phba
->sli4_hba
.abts_sgl_list_lock
);
9079 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
9084 * lpfc_sli4_els_xri_aborted - Slow-path process of els xri abort
9085 * @phba: pointer to lpfc hba data structure.
9086 * @axri: pointer to the els xri abort wcqe structure.
9088 * This routine is invoked by the worker thread to process a SLI4 slow-path
9092 lpfc_sli4_els_xri_aborted(struct lpfc_hba
*phba
,
9093 struct sli4_wcqe_xri_aborted
*axri
)
9095 uint16_t xri
= bf_get(lpfc_wcqe_xa_xri
, axri
);
9096 uint16_t rxid
= bf_get(lpfc_wcqe_xa_remote_xid
, axri
);
9099 struct lpfc_sglq
*sglq_entry
= NULL
, *sglq_next
= NULL
;
9100 unsigned long iflag
= 0;
9101 struct lpfc_nodelist
*ndlp
;
9102 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
9104 spin_lock_irqsave(&phba
->hbalock
, iflag
);
9105 spin_lock(&phba
->sli4_hba
.abts_sgl_list_lock
);
9106 list_for_each_entry_safe(sglq_entry
, sglq_next
,
9107 &phba
->sli4_hba
.lpfc_abts_els_sgl_list
, list
) {
9108 if (sglq_entry
->sli4_xritag
== xri
) {
9109 list_del(&sglq_entry
->list
);
9110 ndlp
= sglq_entry
->ndlp
;
9111 sglq_entry
->ndlp
= NULL
;
9112 spin_lock(&pring
->ring_lock
);
9113 list_add_tail(&sglq_entry
->list
,
9114 &phba
->sli4_hba
.lpfc_sgl_list
);
9115 sglq_entry
->state
= SGL_FREED
;
9116 spin_unlock(&pring
->ring_lock
);
9117 spin_unlock(&phba
->sli4_hba
.abts_sgl_list_lock
);
9118 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
9119 lpfc_set_rrq_active(phba
, ndlp
,
9120 sglq_entry
->sli4_lxritag
,
9123 /* Check if TXQ queue needs to be serviced */
9124 if (!(list_empty(&pring
->txq
)))
9125 lpfc_worker_wake_up(phba
);
9129 spin_unlock(&phba
->sli4_hba
.abts_sgl_list_lock
);
9130 lxri
= lpfc_sli4_xri_inrange(phba
, xri
);
9131 if (lxri
== NO_XRI
) {
9132 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
9135 spin_lock(&pring
->ring_lock
);
9136 sglq_entry
= __lpfc_get_active_sglq(phba
, lxri
);
9137 if (!sglq_entry
|| (sglq_entry
->sli4_xritag
!= xri
)) {
9138 spin_unlock(&pring
->ring_lock
);
9139 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
9142 sglq_entry
->state
= SGL_XRI_ABORTED
;
9143 spin_unlock(&pring
->ring_lock
);
9144 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
9148 /* lpfc_sli_abts_recover_port - Recover a port that failed a BLS_ABORT req.
9149 * @vport: pointer to virtual port object.
9150 * @ndlp: nodelist pointer for the impacted node.
9152 * The driver calls this routine in response to an SLI4 XRI ABORT CQE
9153 * or an SLI3 ASYNC_STATUS_CN event from the port. For either event,
9154 * the driver is required to send a LOGO to the remote node before it
9155 * attempts to recover its login to the remote node.
9158 lpfc_sli_abts_recover_port(struct lpfc_vport
*vport
,
9159 struct lpfc_nodelist
*ndlp
)
9161 struct Scsi_Host
*shost
;
9162 struct lpfc_hba
*phba
;
9163 unsigned long flags
= 0;
9165 shost
= lpfc_shost_from_vport(vport
);
9167 if (ndlp
->nlp_state
!= NLP_STE_MAPPED_NODE
) {
9168 lpfc_printf_log(phba
, KERN_INFO
,
9169 LOG_SLI
, "3093 No rport recovery needed. "
9170 "rport in state 0x%x\n", ndlp
->nlp_state
);
9173 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
9174 "3094 Start rport recovery on shost id 0x%x "
9175 "fc_id 0x%06x vpi 0x%x rpi 0x%x state 0x%x "
9177 shost
->host_no
, ndlp
->nlp_DID
,
9178 vport
->vpi
, ndlp
->nlp_rpi
, ndlp
->nlp_state
,
9181 * The rport is not responding. Remove the FCP-2 flag to prevent
9182 * an ADISC in the follow-up recovery code.
9184 spin_lock_irqsave(shost
->host_lock
, flags
);
9185 ndlp
->nlp_fcp_info
&= ~NLP_FCP_2_DEVICE
;
9186 spin_unlock_irqrestore(shost
->host_lock
, flags
);
9187 lpfc_issue_els_logo(vport
, ndlp
, 0);
9188 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_LOGO_ISSUE
);